archived-gir-files/HarfBuzz-0.0.gir

<?xml version="1.0"?>
<!-- This file was automatically generated from C sources - DO NOT EDIT!
To affect the contents of this file, edit the original C definitions,
and/or use gtk-doc annotations.  -->
<repository xmlns="http://www.gtk.org/introspection/core/1.0" xmlns:c="http://www.gtk.org/introspection/c/1.0" xmlns:glib="http://www.gtk.org/introspection/glib/1.0" version="1.2">
  <include name="GObject" version="2.0"/>
  <package name="harfbuzz-gobject"/>
  <c:include name="hb-gobject.h"/>
  <namespace name="HarfBuzz" version="0.0" shared-library="libharfbuzz.so.0,libharfbuzz-gobject.so.0" c:identifier-prefixes="hb_" c:symbol-prefixes="hb,hb_gobject">
    <alias name="bool_t" c:type="hb_bool_t">
      <doc xml:space="preserve">Data type for booleans.</doc>
      <type name="gint" c:type="int"/>
    </alias>
    <alias name="codepoint_t" c:type="hb_codepoint_t">
      <doc xml:space="preserve">Data type for holding Unicode codepoints. Also
used to hold glyph IDs.</doc>
      <type name="guint32" c:type="uint32_t"/>
    </alias>
    <alias name="color_t" c:type="hb_color_t">
      <doc xml:space="preserve">Data type for holding color values. Colors are eight bits per
channel RGB plus alpha transparency.</doc>
      <type name="guint32" c:type="uint32_t"/>
    </alias>
    <alias name="font_get_font_h_extents_func_t" c:type="hb_font_get_font_h_extents_func_t">
      <doc xml:space="preserve">A virtual method for the #hb_font_funcs_t of an #hb_font_t object.

This method should retrieve the extents for a font, in horizontal-direction
text segments. Extents must be returned in an #hb_glyph_extents output
parameter.</doc>
      <type name="font_get_font_extents_func_t" c:type="hb_font_get_font_extents_func_t"/>
    </alias>
    <alias name="font_get_font_v_extents_func_t" c:type="hb_font_get_font_v_extents_func_t">
      <doc xml:space="preserve">A virtual method for the #hb_font_funcs_t of an #hb_font_t object.

This method should retrieve the extents for a font, in vertical-direction
text segments. Extents must be returned in an #hb_glyph_extents output
parameter.</doc>
      <type name="font_get_font_extents_func_t" c:type="hb_font_get_font_extents_func_t"/>
    </alias>
    <alias name="font_get_glyph_h_advance_func_t" c:type="hb_font_get_glyph_h_advance_func_t">
      <doc xml:space="preserve">A virtual method for the #hb_font_funcs_t of an #hb_font_t object.

This method should retrieve the advance for a specified glyph, in
horizontal-direction text segments. Advances must be returned in
an #hb_position_t output parameter.</doc>
      <type name="font_get_glyph_advance_func_t" c:type="hb_font_get_glyph_advance_func_t"/>
    </alias>
    <alias name="font_get_glyph_h_advances_func_t" c:type="hb_font_get_glyph_h_advances_func_t">
      <doc xml:space="preserve">A virtual method for the #hb_font_funcs_t of an #hb_font_t object.

This method should retrieve the advances for a sequence of glyphs, in
horizontal-direction text segments.</doc>
      <type name="font_get_glyph_advances_func_t" c:type="hb_font_get_glyph_advances_func_t"/>
    </alias>
    <alias name="font_get_glyph_h_kerning_func_t" c:type="hb_font_get_glyph_h_kerning_func_t">
      <type name="font_get_glyph_kerning_func_t" c:type="hb_font_get_glyph_kerning_func_t"/>
    </alias>
    <alias name="font_get_glyph_h_origin_func_t" c:type="hb_font_get_glyph_h_origin_func_t">
      <doc xml:space="preserve">A virtual method for the #hb_font_funcs_t of an #hb_font_t object.

This method should retrieve the (X,Y) coordinates (in font units) of the
origin for a glyph, in horizontal-direction text segments. Each
coordinate must be returned in an #hb_position_t output parameter.</doc>
      <type name="font_get_glyph_origin_func_t" c:type="hb_font_get_glyph_origin_func_t"/>
    </alias>
    <alias name="font_get_glyph_v_advance_func_t" c:type="hb_font_get_glyph_v_advance_func_t">
      <doc xml:space="preserve">A virtual method for the #hb_font_funcs_t of an #hb_font_t object.

This method should retrieve the advance for a specified glyph, in
vertical-direction text segments. Advances must be returned in
an #hb_position_t output parameter.</doc>
      <type name="font_get_glyph_advance_func_t" c:type="hb_font_get_glyph_advance_func_t"/>
    </alias>
    <alias name="font_get_glyph_v_advances_func_t" c:type="hb_font_get_glyph_v_advances_func_t">
      <doc xml:space="preserve">A virtual method for the #hb_font_funcs_t of an #hb_font_t object.

This method should retrieve the advances for a sequence of glyphs, in
vertical-direction text segments.</doc>
      <type name="font_get_glyph_advances_func_t" c:type="hb_font_get_glyph_advances_func_t"/>
    </alias>
    <alias name="font_get_glyph_v_kerning_func_t" c:type="hb_font_get_glyph_v_kerning_func_t">
      <type name="font_get_glyph_kerning_func_t" c:type="hb_font_get_glyph_kerning_func_t"/>
    </alias>
    <alias name="font_get_glyph_v_origin_func_t" c:type="hb_font_get_glyph_v_origin_func_t">
      <doc xml:space="preserve">A virtual method for the #hb_font_funcs_t of an #hb_font_t object.

This method should retrieve the (X,Y) coordinates (in font units) of the
origin for a glyph, in vertical-direction text segments. Each coordinate
must be returned in an #hb_position_t output parameter.</doc>
      <type name="font_get_glyph_origin_func_t" c:type="hb_font_get_glyph_origin_func_t"/>
    </alias>
    <alias name="mask_t" c:type="hb_mask_t">
      <doc xml:space="preserve">Data type for bitmasks.</doc>
      <type name="guint32" c:type="uint32_t"/>
    </alias>
    <alias name="ot_name_id_t" c:type="hb_ot_name_id_t">
      <doc xml:space="preserve">An integral type representing an OpenType 'name' table name identifier.
There are predefined name IDs, as well as name IDs return from other
API.  These can be used to fetch name strings from a font face.</doc>
      <type name="guint" c:type="unsigned int"/>
    </alias>
    <alias name="position_t" c:type="hb_position_t">
      <doc xml:space="preserve">Data type for holding a single coordinate value.
Contour points and other multi-dimensional data are
stored as tuples of #hb_position_t's.</doc>
      <type name="gint32" c:type="int32_t"/>
    </alias>
    <alias name="tag_t" c:type="hb_tag_t">
      <type name="guint32" c:type="uint32_t"/>
    </alias>
    <constant name="AAT_LAYOUT_NO_SELECTOR_INDEX" value="65535" c:type="HB_AAT_LAYOUT_NO_SELECTOR_INDEX">
      <doc xml:space="preserve">Used when getting or setting AAT feature selectors. Indicates that
there is no selector index corresponding to the selector of interest.</doc>
      <type name="gint" c:type="gint"/>
    </constant>
    <constant name="BUFFER_REPLACEMENT_CODEPOINT_DEFAULT" value="65533" c:type="HB_BUFFER_REPLACEMENT_CODEPOINT_DEFAULT" version="0.9.31">
      <doc xml:space="preserve">The default code point for replacing invalid characters in a given encoding.
Set to U+FFFD REPLACEMENT CHARACTER.</doc>
      <type name="gint" c:type="gint"/>
    </constant>
    <function-macro name="COLOR" c:identifier="HB_COLOR" introspectable="0">
      <parameters>
        <parameter name="b">
        </parameter>
        <parameter name="g">
        </parameter>
        <parameter name="r">
        </parameter>
        <parameter name="a">
        </parameter>
      </parameters>
    </function-macro>
    <function-macro name="DEPRECATED_FOR" c:identifier="HB_DEPRECATED_FOR" introspectable="0">
      <parameters>
        <parameter name="f">
        </parameter>
      </parameters>
    </function-macro>
    <function-macro name="DIRECTION_IS_BACKWARD" c:identifier="HB_DIRECTION_IS_BACKWARD" introspectable="0">
      <doc xml:space="preserve">Tests whether a text direction moves backward (from right to left, or from
bottom to top). Requires that the direction be valid.</doc>
      <parameters>
        <parameter name="dir">
          <doc xml:space="preserve">#hb_direction_t to test</doc>
        </parameter>
      </parameters>
    </function-macro>
    <function-macro name="DIRECTION_IS_FORWARD" c:identifier="HB_DIRECTION_IS_FORWARD" introspectable="0">
      <doc xml:space="preserve">Tests whether a text direction moves forward (from left to right, or from
top to bottom). Requires that the direction be valid.</doc>
      <parameters>
        <parameter name="dir">
          <doc xml:space="preserve">#hb_direction_t to test</doc>
        </parameter>
      </parameters>
    </function-macro>
    <function-macro name="DIRECTION_IS_HORIZONTAL" c:identifier="HB_DIRECTION_IS_HORIZONTAL" introspectable="0">
      <doc xml:space="preserve">Tests whether a text direction is horizontal. Requires
that the direction be valid.</doc>
      <parameters>
        <parameter name="dir">
          <doc xml:space="preserve">#hb_direction_t to test</doc>
        </parameter>
      </parameters>
    </function-macro>
    <function-macro name="DIRECTION_IS_VALID" c:identifier="HB_DIRECTION_IS_VALID" introspectable="0">
      <doc xml:space="preserve">Tests whether a text direction is valid.</doc>
      <parameters>
        <parameter name="dir">
          <doc xml:space="preserve">#hb_direction_t to test</doc>
        </parameter>
      </parameters>
    </function-macro>
    <function-macro name="DIRECTION_IS_VERTICAL" c:identifier="HB_DIRECTION_IS_VERTICAL" introspectable="0">
      <doc xml:space="preserve">Tests whether a text direction is vertical. Requires
that the direction be valid.</doc>
      <parameters>
        <parameter name="dir">
          <doc xml:space="preserve">#hb_direction_t to test</doc>
        </parameter>
      </parameters>
    </function-macro>
    <function-macro name="DIRECTION_REVERSE" c:identifier="HB_DIRECTION_REVERSE" introspectable="0">
      <doc xml:space="preserve">Reverses a text direction. Requires that the direction
be valid.</doc>
      <parameters>
        <parameter name="dir">
          <doc xml:space="preserve">#hb_direction_t to reverse</doc>
        </parameter>
      </parameters>
    </function-macro>
    <constant name="FEATURE_GLOBAL_START" value="0" c:type="HB_FEATURE_GLOBAL_START" version="2.0.0">
      <type name="gint" c:type="gint"/>
    </constant>
    <constant name="LANGUAGE_INVALID" value="0" c:type="HB_LANGUAGE_INVALID">
      <type name="language_t" c:type="hb_language_t"/>
    </constant>
    <constant name="MAP_VALUE_INVALID" value="4294967295" c:type="HB_MAP_VALUE_INVALID">
      <type name="codepoint_t" c:type="hb_codepoint_t"/>
    </constant>
    <constant name="OT_LAYOUT_DEFAULT_LANGUAGE_INDEX" value="65535" c:type="HB_OT_LAYOUT_DEFAULT_LANGUAGE_INDEX">
      <type name="gint" c:type="gint"/>
    </constant>
    <constant name="OT_LAYOUT_NO_FEATURE_INDEX" value="65535" c:type="HB_OT_LAYOUT_NO_FEATURE_INDEX">
      <type name="gint" c:type="gint"/>
    </constant>
    <constant name="OT_LAYOUT_NO_SCRIPT_INDEX" value="65535" c:type="HB_OT_LAYOUT_NO_SCRIPT_INDEX">
      <type name="gint" c:type="gint"/>
    </constant>
    <constant name="OT_LAYOUT_NO_VARIATIONS_INDEX" value="4294967295" c:type="HB_OT_LAYOUT_NO_VARIATIONS_INDEX">
      <type name="gint" c:type="gint"/>
    </constant>
    <constant name="OT_MAX_TAGS_PER_LANGUAGE" value="3" c:type="HB_OT_MAX_TAGS_PER_LANGUAGE" version="2.0.0">
      <type name="gint" c:type="gint"/>
    </constant>
    <constant name="OT_MAX_TAGS_PER_SCRIPT" value="3" c:type="HB_OT_MAX_TAGS_PER_SCRIPT" version="2.0.0">
      <type name="gint" c:type="gint"/>
    </constant>
    <constant name="OT_VAR_NO_AXIS_INDEX" value="4294967295" c:type="HB_OT_VAR_NO_AXIS_INDEX" version="1.4.2" deprecated="1" deprecated-version="2.2.0">
      <type name="gint" c:type="gint"/>
    </constant>
    <constant name="SET_VALUE_INVALID" value="4294967295" c:type="HB_SET_VALUE_INVALID">
      <type name="codepoint_t" c:type="hb_codepoint_t"/>
    </constant>
    <function-macro name="TAG" c:identifier="HB_TAG" introspectable="0">
      <doc xml:space="preserve">Constructs an #hb_tag_t from four characters.</doc>
      <parameters>
        <parameter name="c1">
        </parameter>
        <parameter name="c2">
        </parameter>
        <parameter name="c3">
        </parameter>
        <parameter name="c4">
        </parameter>
      </parameters>
    </function-macro>
    <constant name="UNICODE_MAX" value="1114111" c:type="HB_UNICODE_MAX" version="1.9.0">
      <type name="gint" c:type="gint"/>
    </constant>
    <constant name="UNICODE_MAX_DECOMPOSITION_LEN" value="19" c:type="HB_UNICODE_MAX_DECOMPOSITION_LEN" deprecated="1" deprecated-version="2.0.0">
      <doc xml:space="preserve">See Unicode 6.1 for details on the maximum decomposition length.</doc>
      <type name="gint" c:type="gint"/>
    </constant>
    <function-macro name="UNTAG" c:identifier="HB_UNTAG" introspectable="0">
      <doc xml:space="preserve">Extracts the characters from an #hb_tag_t.</doc>
      <parameters>
        <parameter name="tag">
        </parameter>
      </parameters>
    </function-macro>
    <function-macro name="VERSION_ATLEAST" c:identifier="HB_VERSION_ATLEAST" introspectable="0">
      <parameters>
        <parameter name="major">
        </parameter>
        <parameter name="minor">
        </parameter>
        <parameter name="micro">
        </parameter>
      </parameters>
    </function-macro>
    <constant name="VERSION_MAJOR" value="2" c:type="HB_VERSION_MAJOR">
      <type name="gint" c:type="gint"/>
    </constant>
    <constant name="VERSION_MICRO" value="4" c:type="HB_VERSION_MICRO">
      <type name="gint" c:type="gint"/>
    </constant>
    <constant name="VERSION_MINOR" value="7" c:type="HB_VERSION_MINOR">
      <type name="gint" c:type="gint"/>
    </constant>
    <constant name="VERSION_STRING" value="2.7.4" c:type="HB_VERSION_STRING">
      <type name="utf8" c:type="gchar*"/>
    </constant>
    <enumeration name="aat_layout_feature_selector_t" version="2.2.0" glib:type-name="hb_aat_layout_feature_selector_t" glib:get-type="hb_gobject_aat_layout_feature_selector_get_type" c:type="hb_aat_layout_feature_selector_t">
      <doc xml:space="preserve">The selectors defined for specifying AAT feature settings.</doc>
      <member name="invalid" value="65535" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_INVALID" glib:nick="invalid" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_INVALID">
        <doc xml:space="preserve">Initial, unset feature selector</doc>
      </member>
      <member name="all_type_features_on" value="0" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_ALL_TYPE_FEATURES_ON" glib:nick="all-type-features-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_ALL_TYPE_FEATURES_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_ALL_TYPOGRAPHIC</doc>
      </member>
      <member name="all_type_features_off" value="1" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_ALL_TYPE_FEATURES_OFF" glib:nick="all-type-features-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_ALL_TYPE_FEATURES_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_ALL_TYPOGRAPHIC</doc>
      </member>
      <member name="required_ligatures_on" value="0" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_REQUIRED_LIGATURES_ON" glib:nick="required-ligatures-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_REQUIRED_LIGATURES_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES</doc>
      </member>
      <member name="required_ligatures_off" value="1" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_REQUIRED_LIGATURES_OFF" glib:nick="required-ligatures-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_REQUIRED_LIGATURES_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES</doc>
      </member>
      <member name="common_ligatures_on" value="2" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_COMMON_LIGATURES_ON" glib:nick="common-ligatures-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_COMMON_LIGATURES_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES</doc>
      </member>
      <member name="common_ligatures_off" value="3" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_COMMON_LIGATURES_OFF" glib:nick="common-ligatures-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_COMMON_LIGATURES_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES</doc>
      </member>
      <member name="rare_ligatures_on" value="4" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_RARE_LIGATURES_ON" glib:nick="rare-ligatures-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_RARE_LIGATURES_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES</doc>
      </member>
      <member name="rare_ligatures_off" value="5" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_RARE_LIGATURES_OFF" glib:nick="rare-ligatures-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_RARE_LIGATURES_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES</doc>
      </member>
      <member name="logos_on" value="6" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_LOGOS_ON" glib:nick="logos-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_LOGOS_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES</doc>
      </member>
      <member name="logos_off" value="7" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_LOGOS_OFF" glib:nick="logos-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_LOGOS_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES</doc>
      </member>
      <member name="rebus_pictures_on" value="8" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_REBUS_PICTURES_ON" glib:nick="rebus-pictures-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_REBUS_PICTURES_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES</doc>
      </member>
      <member name="rebus_pictures_off" value="9" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_REBUS_PICTURES_OFF" glib:nick="rebus-pictures-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_REBUS_PICTURES_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES</doc>
      </member>
      <member name="diphthong_ligatures_on" value="10" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_DIPHTHONG_LIGATURES_ON" glib:nick="diphthong-ligatures-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_DIPHTHONG_LIGATURES_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES</doc>
      </member>
      <member name="diphthong_ligatures_off" value="11" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_DIPHTHONG_LIGATURES_OFF" glib:nick="diphthong-ligatures-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_DIPHTHONG_LIGATURES_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES</doc>
      </member>
      <member name="squared_ligatures_on" value="12" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_SQUARED_LIGATURES_ON" glib:nick="squared-ligatures-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_SQUARED_LIGATURES_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES</doc>
      </member>
      <member name="squared_ligatures_off" value="13" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_SQUARED_LIGATURES_OFF" glib:nick="squared-ligatures-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_SQUARED_LIGATURES_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES</doc>
      </member>
      <member name="abbrev_squared_ligatures_on" value="14" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_ABBREV_SQUARED_LIGATURES_ON" glib:nick="abbrev-squared-ligatures-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_ABBREV_SQUARED_LIGATURES_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES</doc>
      </member>
      <member name="abbrev_squared_ligatures_off" value="15" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_ABBREV_SQUARED_LIGATURES_OFF" glib:nick="abbrev-squared-ligatures-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_ABBREV_SQUARED_LIGATURES_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES</doc>
      </member>
      <member name="symbol_ligatures_on" value="16" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_SYMBOL_LIGATURES_ON" glib:nick="symbol-ligatures-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_SYMBOL_LIGATURES_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES</doc>
      </member>
      <member name="symbol_ligatures_off" value="17" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_SYMBOL_LIGATURES_OFF" glib:nick="symbol-ligatures-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_SYMBOL_LIGATURES_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES</doc>
      </member>
      <member name="contextual_ligatures_on" value="18" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_CONTEXTUAL_LIGATURES_ON" glib:nick="contextual-ligatures-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_CONTEXTUAL_LIGATURES_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES</doc>
      </member>
      <member name="contextual_ligatures_off" value="19" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_CONTEXTUAL_LIGATURES_OFF" glib:nick="contextual-ligatures-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_CONTEXTUAL_LIGATURES_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES</doc>
      </member>
      <member name="historical_ligatures_on" value="20" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_HISTORICAL_LIGATURES_ON" glib:nick="historical-ligatures-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_HISTORICAL_LIGATURES_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES</doc>
      </member>
      <member name="historical_ligatures_off" value="21" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_HISTORICAL_LIGATURES_OFF" glib:nick="historical-ligatures-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_HISTORICAL_LIGATURES_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES</doc>
      </member>
      <member name="unconnected" value="0" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_UNCONNECTED" glib:nick="unconnected" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_UNCONNECTED">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES</doc>
      </member>
      <member name="partially_connected" value="1" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_PARTIALLY_CONNECTED" glib:nick="partially-connected" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_PARTIALLY_CONNECTED">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES</doc>
      </member>
      <member name="cursive" value="2" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_CURSIVE" glib:nick="cursive" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_CURSIVE">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES</doc>
      </member>
      <member name="upper_and_lower_case" value="0" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_UPPER_AND_LOWER_CASE" glib:nick="upper-and-lower-case" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_UPPER_AND_LOWER_CASE">
        <doc xml:space="preserve">Deprecated</doc>
      </member>
      <member name="all_caps" value="1" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_ALL_CAPS" glib:nick="all-caps" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_ALL_CAPS">
        <doc xml:space="preserve">Deprecated</doc>
      </member>
      <member name="all_lower_case" value="2" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_ALL_LOWER_CASE" glib:nick="all-lower-case" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_ALL_LOWER_CASE">
        <doc xml:space="preserve">Deprecated</doc>
      </member>
      <member name="small_caps" value="3" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_SMALL_CAPS" glib:nick="small-caps" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_SMALL_CAPS">
        <doc xml:space="preserve">Deprecated</doc>
      </member>
      <member name="initial_caps" value="4" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_INITIAL_CAPS" glib:nick="initial-caps" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_INITIAL_CAPS">
        <doc xml:space="preserve">Deprecated</doc>
      </member>
      <member name="initial_caps_and_small_caps" value="5" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_INITIAL_CAPS_AND_SMALL_CAPS" glib:nick="initial-caps-and-small-caps" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_INITIAL_CAPS_AND_SMALL_CAPS">
        <doc xml:space="preserve">Deprecated</doc>
      </member>
      <member name="substitute_vertical_forms_on" value="0" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_SUBSTITUTE_VERTICAL_FORMS_ON" glib:nick="substitute-vertical-forms-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_SUBSTITUTE_VERTICAL_FORMS_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_VERTICAL_SUBSTITUTION</doc>
      </member>
      <member name="substitute_vertical_forms_off" value="1" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_SUBSTITUTE_VERTICAL_FORMS_OFF" glib:nick="substitute-vertical-forms-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_SUBSTITUTE_VERTICAL_FORMS_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_VERTICAL_SUBSTITUTION</doc>
      </member>
      <member name="linguistic_rearrangement_on" value="0" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_LINGUISTIC_REARRANGEMENT_ON" glib:nick="linguistic-rearrangement-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_LINGUISTIC_REARRANGEMENT_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_LINGUISTIC_REARRANGEMENT</doc>
      </member>
      <member name="linguistic_rearrangement_off" value="1" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_LINGUISTIC_REARRANGEMENT_OFF" glib:nick="linguistic-rearrangement-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_LINGUISTIC_REARRANGEMENT_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_LINGUISTIC_REARRANGEMENT</doc>
      </member>
      <member name="monospaced_numbers" value="0" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_MONOSPACED_NUMBERS" glib:nick="monospaced-numbers" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_MONOSPACED_NUMBERS">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_NUMBER_SPACING</doc>
      </member>
      <member name="proportional_numbers" value="1" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_PROPORTIONAL_NUMBERS" glib:nick="proportional-numbers" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_PROPORTIONAL_NUMBERS">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_NUMBER_SPACING</doc>
      </member>
      <member name="third_width_numbers" value="2" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_THIRD_WIDTH_NUMBERS" glib:nick="third-width-numbers" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_THIRD_WIDTH_NUMBERS">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_NUMBER_SPACING</doc>
      </member>
      <member name="quarter_width_numbers" value="3" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_QUARTER_WIDTH_NUMBERS" glib:nick="quarter-width-numbers" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_QUARTER_WIDTH_NUMBERS">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_NUMBER_SPACING</doc>
      </member>
      <member name="word_initial_swashes_on" value="0" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_WORD_INITIAL_SWASHES_ON" glib:nick="word-initial-swashes-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_WORD_INITIAL_SWASHES_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_SMART_SWASH_TYPE</doc>
      </member>
      <member name="word_initial_swashes_off" value="1" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_WORD_INITIAL_SWASHES_OFF" glib:nick="word-initial-swashes-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_WORD_INITIAL_SWASHES_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_SMART_SWASH_TYPE</doc>
      </member>
      <member name="word_final_swashes_on" value="2" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_WORD_FINAL_SWASHES_ON" glib:nick="word-final-swashes-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_WORD_FINAL_SWASHES_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_SMART_SWASH_TYPE</doc>
      </member>
      <member name="word_final_swashes_off" value="3" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_WORD_FINAL_SWASHES_OFF" glib:nick="word-final-swashes-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_WORD_FINAL_SWASHES_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_SMART_SWASH_TYPE</doc>
      </member>
      <member name="line_initial_swashes_on" value="4" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_LINE_INITIAL_SWASHES_ON" glib:nick="line-initial-swashes-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_LINE_INITIAL_SWASHES_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_SMART_SWASH_TYPE</doc>
      </member>
      <member name="line_initial_swashes_off" value="5" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_LINE_INITIAL_SWASHES_OFF" glib:nick="line-initial-swashes-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_LINE_INITIAL_SWASHES_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_SMART_SWASH_TYPE</doc>
      </member>
      <member name="line_final_swashes_on" value="6" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_LINE_FINAL_SWASHES_ON" glib:nick="line-final-swashes-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_LINE_FINAL_SWASHES_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_SMART_SWASH_TYPE</doc>
      </member>
      <member name="line_final_swashes_off" value="7" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_LINE_FINAL_SWASHES_OFF" glib:nick="line-final-swashes-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_LINE_FINAL_SWASHES_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_SMART_SWASH_TYPE</doc>
      </member>
      <member name="non_final_swashes_on" value="8" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_NON_FINAL_SWASHES_ON" glib:nick="non-final-swashes-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_NON_FINAL_SWASHES_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_SMART_SWASH_TYPE</doc>
      </member>
      <member name="non_final_swashes_off" value="9" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_NON_FINAL_SWASHES_OFF" glib:nick="non-final-swashes-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_NON_FINAL_SWASHES_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_SMART_SWASH_TYPE</doc>
      </member>
      <member name="show_diacritics" value="0" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_SHOW_DIACRITICS" glib:nick="show-diacritics" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_SHOW_DIACRITICS">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_DIACRITICS_TYPE</doc>
      </member>
      <member name="hide_diacritics" value="1" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_HIDE_DIACRITICS" glib:nick="hide-diacritics" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_HIDE_DIACRITICS">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_DIACRITICS_TYPE</doc>
      </member>
      <member name="decompose_diacritics" value="2" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_DECOMPOSE_DIACRITICS" glib:nick="decompose-diacritics" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_DECOMPOSE_DIACRITICS">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_DIACRITICS_TYPE</doc>
      </member>
      <member name="normal_position" value="0" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_NORMAL_POSITION" glib:nick="normal-position" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_NORMAL_POSITION">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_VERTICAL_POSITION</doc>
      </member>
      <member name="superiors" value="1" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_SUPERIORS" glib:nick="superiors" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_SUPERIORS">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_VERTICAL_POSITION</doc>
      </member>
      <member name="inferiors" value="2" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_INFERIORS" glib:nick="inferiors" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_INFERIORS">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_VERTICAL_POSITION</doc>
      </member>
      <member name="ordinals" value="3" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_ORDINALS" glib:nick="ordinals" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_ORDINALS">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_VERTICAL_POSITION</doc>
      </member>
      <member name="scientific_inferiors" value="4" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_SCIENTIFIC_INFERIORS" glib:nick="scientific-inferiors" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_SCIENTIFIC_INFERIORS">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_VERTICAL_POSITION</doc>
      </member>
      <member name="no_fractions" value="0" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_NO_FRACTIONS" glib:nick="no-fractions" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_NO_FRACTIONS">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_FRACTIONS</doc>
      </member>
      <member name="vertical_fractions" value="1" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_VERTICAL_FRACTIONS" glib:nick="vertical-fractions" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_VERTICAL_FRACTIONS">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_FRACTIONS</doc>
      </member>
      <member name="diagonal_fractions" value="2" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_DIAGONAL_FRACTIONS" glib:nick="diagonal-fractions" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_DIAGONAL_FRACTIONS">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_FRACTIONS</doc>
      </member>
      <member name="prevent_overlap_on" value="0" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_PREVENT_OVERLAP_ON" glib:nick="prevent-overlap-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_PREVENT_OVERLAP_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_OVERLAPPING_CHARACTERS_TYPE</doc>
      </member>
      <member name="prevent_overlap_off" value="1" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_PREVENT_OVERLAP_OFF" glib:nick="prevent-overlap-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_PREVENT_OVERLAP_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_OVERLAPPING_CHARACTERS_TYPE</doc>
      </member>
      <member name="hyphens_to_em_dash_on" value="0" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_HYPHENS_TO_EM_DASH_ON" glib:nick="hyphens-to-em-dash-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_HYPHENS_TO_EM_DASH_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_TYPOGRAPHIC_EXTRAS</doc>
      </member>
      <member name="hyphens_to_em_dash_off" value="1" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_HYPHENS_TO_EM_DASH_OFF" glib:nick="hyphens-to-em-dash-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_HYPHENS_TO_EM_DASH_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_TYPOGRAPHIC_EXTRAS</doc>
      </member>
      <member name="hyphen_to_en_dash_on" value="2" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_HYPHEN_TO_EN_DASH_ON" glib:nick="hyphen-to-en-dash-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_HYPHEN_TO_EN_DASH_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_TYPOGRAPHIC_EXTRAS</doc>
      </member>
      <member name="hyphen_to_en_dash_off" value="3" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_HYPHEN_TO_EN_DASH_OFF" glib:nick="hyphen-to-en-dash-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_HYPHEN_TO_EN_DASH_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_TYPOGRAPHIC_EXTRAS</doc>
      </member>
      <member name="slashed_zero_on" value="4" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_SLASHED_ZERO_ON" glib:nick="slashed-zero-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_SLASHED_ZERO_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_TYPOGRAPHIC_EXTRAS</doc>
      </member>
      <member name="slashed_zero_off" value="5" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_SLASHED_ZERO_OFF" glib:nick="slashed-zero-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_SLASHED_ZERO_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_TYPOGRAPHIC_EXTRAS</doc>
      </member>
      <member name="form_interrobang_on" value="6" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_FORM_INTERROBANG_ON" glib:nick="form-interrobang-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_FORM_INTERROBANG_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_TYPOGRAPHIC_EXTRAS</doc>
      </member>
      <member name="form_interrobang_off" value="7" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_FORM_INTERROBANG_OFF" glib:nick="form-interrobang-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_FORM_INTERROBANG_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_TYPOGRAPHIC_EXTRAS</doc>
      </member>
      <member name="smart_quotes_on" value="8" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_SMART_QUOTES_ON" glib:nick="smart-quotes-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_SMART_QUOTES_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_TYPOGRAPHIC_EXTRAS</doc>
      </member>
      <member name="smart_quotes_off" value="9" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_SMART_QUOTES_OFF" glib:nick="smart-quotes-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_SMART_QUOTES_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_TYPOGRAPHIC_EXTRAS</doc>
      </member>
      <member name="periods_to_ellipsis_on" value="10" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_PERIODS_TO_ELLIPSIS_ON" glib:nick="periods-to-ellipsis-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_PERIODS_TO_ELLIPSIS_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_TYPOGRAPHIC_EXTRAS</doc>
      </member>
      <member name="periods_to_ellipsis_off" value="11" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_PERIODS_TO_ELLIPSIS_OFF" glib:nick="periods-to-ellipsis-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_PERIODS_TO_ELLIPSIS_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_TYPOGRAPHIC_EXTRAS</doc>
      </member>
      <member name="hyphen_to_minus_on" value="0" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_HYPHEN_TO_MINUS_ON" glib:nick="hyphen-to-minus-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_HYPHEN_TO_MINUS_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_MATHEMATICAL_EXTRAS</doc>
      </member>
      <member name="hyphen_to_minus_off" value="1" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_HYPHEN_TO_MINUS_OFF" glib:nick="hyphen-to-minus-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_HYPHEN_TO_MINUS_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_MATHEMATICAL_EXTRAS</doc>
      </member>
      <member name="asterisk_to_multiply_on" value="2" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_ASTERISK_TO_MULTIPLY_ON" glib:nick="asterisk-to-multiply-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_ASTERISK_TO_MULTIPLY_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_MATHEMATICAL_EXTRAS</doc>
      </member>
      <member name="asterisk_to_multiply_off" value="3" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_ASTERISK_TO_MULTIPLY_OFF" glib:nick="asterisk-to-multiply-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_ASTERISK_TO_MULTIPLY_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_MATHEMATICAL_EXTRAS</doc>
      </member>
      <member name="slash_to_divide_on" value="4" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_SLASH_TO_DIVIDE_ON" glib:nick="slash-to-divide-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_SLASH_TO_DIVIDE_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_MATHEMATICAL_EXTRAS</doc>
      </member>
      <member name="slash_to_divide_off" value="5" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_SLASH_TO_DIVIDE_OFF" glib:nick="slash-to-divide-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_SLASH_TO_DIVIDE_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_MATHEMATICAL_EXTRAS</doc>
      </member>
      <member name="inequality_ligatures_on" value="6" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_INEQUALITY_LIGATURES_ON" glib:nick="inequality-ligatures-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_INEQUALITY_LIGATURES_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_MATHEMATICAL_EXTRAS</doc>
      </member>
      <member name="inequality_ligatures_off" value="7" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_INEQUALITY_LIGATURES_OFF" glib:nick="inequality-ligatures-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_INEQUALITY_LIGATURES_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_MATHEMATICAL_EXTRAS</doc>
      </member>
      <member name="exponents_on" value="8" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_EXPONENTS_ON" glib:nick="exponents-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_EXPONENTS_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_MATHEMATICAL_EXTRAS</doc>
      </member>
      <member name="exponents_off" value="9" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_EXPONENTS_OFF" glib:nick="exponents-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_EXPONENTS_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_MATHEMATICAL_EXTRAS</doc>
      </member>
      <member name="mathematical_greek_on" value="10" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_MATHEMATICAL_GREEK_ON" glib:nick="mathematical-greek-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_MATHEMATICAL_GREEK_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_MATHEMATICAL_EXTRAS</doc>
      </member>
      <member name="mathematical_greek_off" value="11" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_MATHEMATICAL_GREEK_OFF" glib:nick="mathematical-greek-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_MATHEMATICAL_GREEK_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_MATHEMATICAL_EXTRAS</doc>
      </member>
      <member name="no_ornaments" value="0" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_NO_ORNAMENTS" glib:nick="no-ornaments" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_NO_ORNAMENTS">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_ORNAMENT_SETS_TYPE</doc>
      </member>
      <member name="dingbats" value="1" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_DINGBATS" glib:nick="dingbats" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_DINGBATS">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_ORNAMENT_SETS_TYPE</doc>
      </member>
      <member name="pi_characters" value="2" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_PI_CHARACTERS" glib:nick="pi-characters" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_PI_CHARACTERS">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_ORNAMENT_SETS_TYPE</doc>
      </member>
      <member name="fleurons" value="3" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_FLEURONS" glib:nick="fleurons" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_FLEURONS">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_ORNAMENT_SETS_TYPE</doc>
      </member>
      <member name="decorative_borders" value="4" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_DECORATIVE_BORDERS" glib:nick="decorative-borders" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_DECORATIVE_BORDERS">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_ORNAMENT_SETS_TYPE</doc>
      </member>
      <member name="international_symbols" value="5" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_INTERNATIONAL_SYMBOLS" glib:nick="international-symbols" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_INTERNATIONAL_SYMBOLS">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_ORNAMENT_SETS_TYPE</doc>
      </member>
      <member name="math_symbols" value="6" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_MATH_SYMBOLS" glib:nick="math-symbols" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_MATH_SYMBOLS">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_ORNAMENT_SETS_TYPE</doc>
      </member>
      <member name="no_alternates" value="0" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_NO_ALTERNATES" glib:nick="no-alternates" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_NO_ALTERNATES">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_ALTERNATIVES</doc>
      </member>
      <member name="design_level1" value="0" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_DESIGN_LEVEL1" glib:nick="design-level1" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_DESIGN_LEVEL1">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_DESIGN_COMPLEXITY_TYPE</doc>
      </member>
      <member name="design_level2" value="1" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_DESIGN_LEVEL2" glib:nick="design-level2" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_DESIGN_LEVEL2">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_DESIGN_COMPLEXITY_TYPE</doc>
      </member>
      <member name="design_level3" value="2" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_DESIGN_LEVEL3" glib:nick="design-level3" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_DESIGN_LEVEL3">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_DESIGN_COMPLEXITY_TYPE</doc>
      </member>
      <member name="design_level4" value="3" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_DESIGN_LEVEL4" glib:nick="design-level4" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_DESIGN_LEVEL4">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_DESIGN_COMPLEXITY_TYPE</doc>
      </member>
      <member name="design_level5" value="4" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_DESIGN_LEVEL5" glib:nick="design-level5" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_DESIGN_LEVEL5">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_DESIGN_COMPLEXITY_TYPE</doc>
      </member>
      <member name="no_style_options" value="0" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_NO_STYLE_OPTIONS" glib:nick="no-style-options" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_NO_STYLE_OPTIONS">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLE_OPTIONS</doc>
      </member>
      <member name="display_text" value="1" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_DISPLAY_TEXT" glib:nick="display-text" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_DISPLAY_TEXT">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLE_OPTIONS</doc>
      </member>
      <member name="engraved_text" value="2" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_ENGRAVED_TEXT" glib:nick="engraved-text" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_ENGRAVED_TEXT">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLE_OPTIONS</doc>
      </member>
      <member name="illuminated_caps" value="3" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_ILLUMINATED_CAPS" glib:nick="illuminated-caps" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_ILLUMINATED_CAPS">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLE_OPTIONS</doc>
      </member>
      <member name="titling_caps" value="4" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_TITLING_CAPS" glib:nick="titling-caps" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_TITLING_CAPS">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLE_OPTIONS</doc>
      </member>
      <member name="tall_caps" value="5" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_TALL_CAPS" glib:nick="tall-caps" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_TALL_CAPS">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLE_OPTIONS</doc>
      </member>
      <member name="traditional_characters" value="0" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_TRADITIONAL_CHARACTERS" glib:nick="traditional-characters" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_TRADITIONAL_CHARACTERS">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_SHAPE</doc>
      </member>
      <member name="simplified_characters" value="1" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_SIMPLIFIED_CHARACTERS" glib:nick="simplified-characters" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_SIMPLIFIED_CHARACTERS">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_SHAPE</doc>
      </member>
      <member name="jis1978_characters" value="2" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_JIS1978_CHARACTERS" glib:nick="jis1978-characters" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_JIS1978_CHARACTERS">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_SHAPE</doc>
      </member>
      <member name="jis1983_characters" value="3" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_JIS1983_CHARACTERS" glib:nick="jis1983-characters" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_JIS1983_CHARACTERS">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_SHAPE</doc>
      </member>
      <member name="jis1990_characters" value="4" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_JIS1990_CHARACTERS" glib:nick="jis1990-characters" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_JIS1990_CHARACTERS">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_SHAPE</doc>
      </member>
      <member name="traditional_alt_one" value="5" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_TRADITIONAL_ALT_ONE" glib:nick="traditional-alt-one" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_TRADITIONAL_ALT_ONE">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_SHAPE</doc>
      </member>
      <member name="traditional_alt_two" value="6" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_TRADITIONAL_ALT_TWO" glib:nick="traditional-alt-two" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_TRADITIONAL_ALT_TWO">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_SHAPE</doc>
      </member>
      <member name="traditional_alt_three" value="7" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_TRADITIONAL_ALT_THREE" glib:nick="traditional-alt-three" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_TRADITIONAL_ALT_THREE">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_SHAPE</doc>
      </member>
      <member name="traditional_alt_four" value="8" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_TRADITIONAL_ALT_FOUR" glib:nick="traditional-alt-four" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_TRADITIONAL_ALT_FOUR">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_SHAPE</doc>
      </member>
      <member name="traditional_alt_five" value="9" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_TRADITIONAL_ALT_FIVE" glib:nick="traditional-alt-five" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_TRADITIONAL_ALT_FIVE">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_SHAPE</doc>
      </member>
      <member name="expert_characters" value="10" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_EXPERT_CHARACTERS" glib:nick="expert-characters" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_EXPERT_CHARACTERS">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_SHAPE</doc>
      </member>
      <member name="jis2004_characters" value="11" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_JIS2004_CHARACTERS" glib:nick="jis2004-characters" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_JIS2004_CHARACTERS">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_SHAPE</doc>
      </member>
      <member name="hojo_characters" value="12" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_HOJO_CHARACTERS" glib:nick="hojo-characters" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_HOJO_CHARACTERS">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_SHAPE</doc>
      </member>
      <member name="nlccharacters" value="13" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_NLCCHARACTERS" glib:nick="nlccharacters" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_NLCCHARACTERS">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_SHAPE</doc>
      </member>
      <member name="traditional_names_characters" value="14" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_TRADITIONAL_NAMES_CHARACTERS" glib:nick="traditional-names-characters" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_TRADITIONAL_NAMES_CHARACTERS">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_SHAPE</doc>
      </member>
      <member name="lower_case_numbers" value="0" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_LOWER_CASE_NUMBERS" glib:nick="lower-case-numbers" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_LOWER_CASE_NUMBERS">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_NUMBER_CASE</doc>
      </member>
      <member name="upper_case_numbers" value="1" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_UPPER_CASE_NUMBERS" glib:nick="upper-case-numbers" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_UPPER_CASE_NUMBERS">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_NUMBER_CASE</doc>
      </member>
      <member name="proportional_text" value="0" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_PROPORTIONAL_TEXT" glib:nick="proportional-text" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_PROPORTIONAL_TEXT">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_TEXT_SPACING</doc>
      </member>
      <member name="monospaced_text" value="1" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_MONOSPACED_TEXT" glib:nick="monospaced-text" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_MONOSPACED_TEXT">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_TEXT_SPACING</doc>
      </member>
      <member name="half_width_text" value="2" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_HALF_WIDTH_TEXT" glib:nick="half-width-text" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_HALF_WIDTH_TEXT">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_TEXT_SPACING</doc>
      </member>
      <member name="third_width_text" value="3" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_THIRD_WIDTH_TEXT" glib:nick="third-width-text" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_THIRD_WIDTH_TEXT">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_TEXT_SPACING</doc>
      </member>
      <member name="quarter_width_text" value="4" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_QUARTER_WIDTH_TEXT" glib:nick="quarter-width-text" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_QUARTER_WIDTH_TEXT">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_TEXT_SPACING</doc>
      </member>
      <member name="alt_proportional_text" value="5" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_ALT_PROPORTIONAL_TEXT" glib:nick="alt-proportional-text" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_ALT_PROPORTIONAL_TEXT">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_TEXT_SPACING</doc>
      </member>
      <member name="alt_half_width_text" value="6" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_ALT_HALF_WIDTH_TEXT" glib:nick="alt-half-width-text" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_ALT_HALF_WIDTH_TEXT">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_TEXT_SPACING</doc>
      </member>
      <member name="no_transliteration" value="0" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_NO_TRANSLITERATION" glib:nick="no-transliteration" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_NO_TRANSLITERATION">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_TRANSLITERATION</doc>
      </member>
      <member name="hanja_to_hangul" value="1" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_HANJA_TO_HANGUL" glib:nick="hanja-to-hangul" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_HANJA_TO_HANGUL">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_TRANSLITERATION</doc>
      </member>
      <member name="hiragana_to_katakana" value="2" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_HIRAGANA_TO_KATAKANA" glib:nick="hiragana-to-katakana" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_HIRAGANA_TO_KATAKANA">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_TRANSLITERATION</doc>
      </member>
      <member name="katakana_to_hiragana" value="3" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_KATAKANA_TO_HIRAGANA" glib:nick="katakana-to-hiragana" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_KATAKANA_TO_HIRAGANA">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_TRANSLITERATION</doc>
      </member>
      <member name="kana_to_romanization" value="4" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_KANA_TO_ROMANIZATION" glib:nick="kana-to-romanization" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_KANA_TO_ROMANIZATION">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_TRANSLITERATION</doc>
      </member>
      <member name="romanization_to_hiragana" value="5" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_ROMANIZATION_TO_HIRAGANA" glib:nick="romanization-to-hiragana" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_ROMANIZATION_TO_HIRAGANA">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_TRANSLITERATION</doc>
      </member>
      <member name="romanization_to_katakana" value="6" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_ROMANIZATION_TO_KATAKANA" glib:nick="romanization-to-katakana" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_ROMANIZATION_TO_KATAKANA">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_TRANSLITERATION</doc>
      </member>
      <member name="hanja_to_hangul_alt_one" value="7" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_HANJA_TO_HANGUL_ALT_ONE" glib:nick="hanja-to-hangul-alt-one" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_HANJA_TO_HANGUL_ALT_ONE">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_TRANSLITERATION</doc>
      </member>
      <member name="hanja_to_hangul_alt_two" value="8" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_HANJA_TO_HANGUL_ALT_TWO" glib:nick="hanja-to-hangul-alt-two" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_HANJA_TO_HANGUL_ALT_TWO">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_TRANSLITERATION</doc>
      </member>
      <member name="hanja_to_hangul_alt_three" value="9" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_HANJA_TO_HANGUL_ALT_THREE" glib:nick="hanja-to-hangul-alt-three" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_HANJA_TO_HANGUL_ALT_THREE">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_TRANSLITERATION</doc>
      </member>
      <member name="no_annotation" value="0" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_NO_ANNOTATION" glib:nick="no-annotation" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_NO_ANNOTATION">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_ANNOTATION_TYPE</doc>
      </member>
      <member name="box_annotation" value="1" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_BOX_ANNOTATION" glib:nick="box-annotation" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_BOX_ANNOTATION">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_ANNOTATION_TYPE</doc>
      </member>
      <member name="rounded_box_annotation" value="2" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_ROUNDED_BOX_ANNOTATION" glib:nick="rounded-box-annotation" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_ROUNDED_BOX_ANNOTATION">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_ANNOTATION_TYPE</doc>
      </member>
      <member name="circle_annotation" value="3" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_CIRCLE_ANNOTATION" glib:nick="circle-annotation" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_CIRCLE_ANNOTATION">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_ANNOTATION_TYPE</doc>
      </member>
      <member name="inverted_circle_annotation" value="4" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_INVERTED_CIRCLE_ANNOTATION" glib:nick="inverted-circle-annotation" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_INVERTED_CIRCLE_ANNOTATION">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_ANNOTATION_TYPE</doc>
      </member>
      <member name="parenthesis_annotation" value="5" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_PARENTHESIS_ANNOTATION" glib:nick="parenthesis-annotation" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_PARENTHESIS_ANNOTATION">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_ANNOTATION_TYPE</doc>
      </member>
      <member name="period_annotation" value="6" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_PERIOD_ANNOTATION" glib:nick="period-annotation" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_PERIOD_ANNOTATION">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_ANNOTATION_TYPE</doc>
      </member>
      <member name="roman_numeral_annotation" value="7" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_ROMAN_NUMERAL_ANNOTATION" glib:nick="roman-numeral-annotation" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_ROMAN_NUMERAL_ANNOTATION">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_ANNOTATION_TYPE</doc>
      </member>
      <member name="diamond_annotation" value="8" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_DIAMOND_ANNOTATION" glib:nick="diamond-annotation" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_DIAMOND_ANNOTATION">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_ANNOTATION_TYPE</doc>
      </member>
      <member name="inverted_box_annotation" value="9" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_INVERTED_BOX_ANNOTATION" glib:nick="inverted-box-annotation" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_INVERTED_BOX_ANNOTATION">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_ANNOTATION_TYPE</doc>
      </member>
      <member name="inverted_rounded_box_annotation" value="10" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_INVERTED_ROUNDED_BOX_ANNOTATION" glib:nick="inverted-rounded-box-annotation" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_INVERTED_ROUNDED_BOX_ANNOTATION">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_ANNOTATION_TYPE</doc>
      </member>
      <member name="full_width_kana" value="0" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_FULL_WIDTH_KANA" glib:nick="full-width-kana" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_FULL_WIDTH_KANA">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_KANA_SPACING_TYPE</doc>
      </member>
      <member name="proportional_kana" value="1" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_PROPORTIONAL_KANA" glib:nick="proportional-kana" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_PROPORTIONAL_KANA">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_KANA_SPACING_TYPE</doc>
      </member>
      <member name="full_width_ideographs" value="0" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_FULL_WIDTH_IDEOGRAPHS" glib:nick="full-width-ideographs" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_FULL_WIDTH_IDEOGRAPHS">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_IDEOGRAPHIC_SPACING_TYPE</doc>
      </member>
      <member name="proportional_ideographs" value="1" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_PROPORTIONAL_IDEOGRAPHS" glib:nick="proportional-ideographs" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_PROPORTIONAL_IDEOGRAPHS">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_IDEOGRAPHIC_SPACING_TYPE</doc>
      </member>
      <member name="half_width_ideographs" value="2" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_HALF_WIDTH_IDEOGRAPHS" glib:nick="half-width-ideographs" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_HALF_WIDTH_IDEOGRAPHS">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_IDEOGRAPHIC_SPACING_TYPE</doc>
      </member>
      <member name="canonical_composition_on" value="0" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_CANONICAL_COMPOSITION_ON" glib:nick="canonical-composition-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_CANONICAL_COMPOSITION_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_UNICODE_DECOMPOSITION_TYPE</doc>
      </member>
      <member name="canonical_composition_off" value="1" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_CANONICAL_COMPOSITION_OFF" glib:nick="canonical-composition-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_CANONICAL_COMPOSITION_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_UNICODE_DECOMPOSITION_TYPE</doc>
      </member>
      <member name="compatibility_composition_on" value="2" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_COMPATIBILITY_COMPOSITION_ON" glib:nick="compatibility-composition-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_COMPATIBILITY_COMPOSITION_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_UNICODE_DECOMPOSITION_TYPE</doc>
      </member>
      <member name="compatibility_composition_off" value="3" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_COMPATIBILITY_COMPOSITION_OFF" glib:nick="compatibility-composition-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_COMPATIBILITY_COMPOSITION_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_UNICODE_DECOMPOSITION_TYPE</doc>
      </member>
      <member name="transcoding_composition_on" value="4" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_TRANSCODING_COMPOSITION_ON" glib:nick="transcoding-composition-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_TRANSCODING_COMPOSITION_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_UNICODE_DECOMPOSITION_TYPE</doc>
      </member>
      <member name="transcoding_composition_off" value="5" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_TRANSCODING_COMPOSITION_OFF" glib:nick="transcoding-composition-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_TRANSCODING_COMPOSITION_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_UNICODE_DECOMPOSITION_TYPE</doc>
      </member>
      <member name="no_ruby_kana" value="0" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_NO_RUBY_KANA" glib:nick="no-ruby-kana" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_NO_RUBY_KANA">
        <doc xml:space="preserve">Deprecated; use #HB_AAT_LAYOUT_FEATURE_SELECTOR_RUBY_KANA_OFF instead</doc>
      </member>
      <member name="ruby_kana" value="1" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_RUBY_KANA" glib:nick="ruby-kana" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_RUBY_KANA">
        <doc xml:space="preserve">Deprecated; use #HB_AAT_LAYOUT_FEATURE_SELECTOR_RUBY_KANA_ON instead</doc>
      </member>
      <member name="ruby_kana_on" value="2" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_RUBY_KANA_ON" glib:nick="ruby-kana-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_RUBY_KANA_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_RUBY_KANA</doc>
      </member>
      <member name="ruby_kana_off" value="3" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_RUBY_KANA_OFF" glib:nick="ruby-kana-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_RUBY_KANA_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_RUBY_KANA</doc>
      </member>
      <member name="no_cjk_symbol_alternatives" value="0" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_NO_CJK_SYMBOL_ALTERNATIVES" glib:nick="no-cjk-symbol-alternatives" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_NO_CJK_SYMBOL_ALTERNATIVES">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_CJK_SYMBOL_ALTERNATIVES_TYPE</doc>
      </member>
      <member name="cjk_symbol_alt_one" value="1" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_CJK_SYMBOL_ALT_ONE" glib:nick="cjk-symbol-alt-one" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_CJK_SYMBOL_ALT_ONE">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_CJK_SYMBOL_ALTERNATIVES_TYPE</doc>
      </member>
      <member name="cjk_symbol_alt_two" value="2" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_CJK_SYMBOL_ALT_TWO" glib:nick="cjk-symbol-alt-two" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_CJK_SYMBOL_ALT_TWO">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_CJK_SYMBOL_ALTERNATIVES_TYPE</doc>
      </member>
      <member name="cjk_symbol_alt_three" value="3" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_CJK_SYMBOL_ALT_THREE" glib:nick="cjk-symbol-alt-three" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_CJK_SYMBOL_ALT_THREE">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_CJK_SYMBOL_ALTERNATIVES_TYPE</doc>
      </member>
      <member name="cjk_symbol_alt_four" value="4" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_CJK_SYMBOL_ALT_FOUR" glib:nick="cjk-symbol-alt-four" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_CJK_SYMBOL_ALT_FOUR">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_CJK_SYMBOL_ALTERNATIVES_TYPE</doc>
      </member>
      <member name="cjk_symbol_alt_five" value="5" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_CJK_SYMBOL_ALT_FIVE" glib:nick="cjk-symbol-alt-five" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_CJK_SYMBOL_ALT_FIVE">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_CJK_SYMBOL_ALTERNATIVES_TYPE</doc>
      </member>
      <member name="no_ideographic_alternatives" value="0" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_NO_IDEOGRAPHIC_ALTERNATIVES" glib:nick="no-ideographic-alternatives" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_NO_IDEOGRAPHIC_ALTERNATIVES">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_IDEOGRAPHIC_ALTERNATIVES_TYPE</doc>
      </member>
      <member name="ideographic_alt_one" value="1" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_IDEOGRAPHIC_ALT_ONE" glib:nick="ideographic-alt-one" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_IDEOGRAPHIC_ALT_ONE">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_IDEOGRAPHIC_ALTERNATIVES_TYPE</doc>
      </member>
      <member name="ideographic_alt_two" value="2" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_IDEOGRAPHIC_ALT_TWO" glib:nick="ideographic-alt-two" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_IDEOGRAPHIC_ALT_TWO">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_IDEOGRAPHIC_ALTERNATIVES_TYPE</doc>
      </member>
      <member name="ideographic_alt_three" value="3" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_IDEOGRAPHIC_ALT_THREE" glib:nick="ideographic-alt-three" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_IDEOGRAPHIC_ALT_THREE">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_IDEOGRAPHIC_ALTERNATIVES_TYPE</doc>
      </member>
      <member name="ideographic_alt_four" value="4" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_IDEOGRAPHIC_ALT_FOUR" glib:nick="ideographic-alt-four" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_IDEOGRAPHIC_ALT_FOUR">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_IDEOGRAPHIC_ALTERNATIVES_TYPE</doc>
      </member>
      <member name="ideographic_alt_five" value="5" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_IDEOGRAPHIC_ALT_FIVE" glib:nick="ideographic-alt-five" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_IDEOGRAPHIC_ALT_FIVE">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_IDEOGRAPHIC_ALTERNATIVES_TYPE</doc>
      </member>
      <member name="cjk_vertical_roman_centered" value="0" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_CJK_VERTICAL_ROMAN_CENTERED" glib:nick="cjk-vertical-roman-centered" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_CJK_VERTICAL_ROMAN_CENTERED">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_CJK_VERTICAL_ROMAN_PLACEMENT_TYPE</doc>
      </member>
      <member name="cjk_vertical_roman_hbaseline" value="1" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_CJK_VERTICAL_ROMAN_HBASELINE" glib:nick="cjk-vertical-roman-hbaseline" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_CJK_VERTICAL_ROMAN_HBASELINE">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_CJK_VERTICAL_ROMAN_PLACEMENT_TYPE</doc>
      </member>
      <member name="no_cjk_italic_roman" value="0" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_NO_CJK_ITALIC_ROMAN" glib:nick="no-cjk-italic-roman" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_NO_CJK_ITALIC_ROMAN">
        <doc xml:space="preserve">Deprecated; use #HB_AAT_LAYOUT_FEATURE_SELECTOR_CJK_ITALIC_ROMAN_OFF instead</doc>
      </member>
      <member name="cjk_italic_roman" value="1" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_CJK_ITALIC_ROMAN" glib:nick="cjk-italic-roman" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_CJK_ITALIC_ROMAN">
        <doc xml:space="preserve">Deprecated; use #HB_AAT_LAYOUT_FEATURE_SELECTOR_CJK_ITALIC_ROMAN_ON instead</doc>
      </member>
      <member name="cjk_italic_roman_on" value="2" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_CJK_ITALIC_ROMAN_ON" glib:nick="cjk-italic-roman-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_CJK_ITALIC_ROMAN_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_ITALIC_CJK_ROMAN</doc>
      </member>
      <member name="cjk_italic_roman_off" value="3" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_CJK_ITALIC_ROMAN_OFF" glib:nick="cjk-italic-roman-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_CJK_ITALIC_ROMAN_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_ITALIC_CJK_ROMAN</doc>
      </member>
      <member name="case_sensitive_layout_on" value="0" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_CASE_SENSITIVE_LAYOUT_ON" glib:nick="case-sensitive-layout-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_CASE_SENSITIVE_LAYOUT_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_CASE_SENSITIVE_LAYOUT</doc>
      </member>
      <member name="case_sensitive_layout_off" value="1" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_CASE_SENSITIVE_LAYOUT_OFF" glib:nick="case-sensitive-layout-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_CASE_SENSITIVE_LAYOUT_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_CASE_SENSITIVE_LAYOUT</doc>
      </member>
      <member name="case_sensitive_spacing_on" value="2" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_CASE_SENSITIVE_SPACING_ON" glib:nick="case-sensitive-spacing-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_CASE_SENSITIVE_SPACING_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_CASE_SENSITIVE_LAYOUT</doc>
      </member>
      <member name="case_sensitive_spacing_off" value="3" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_CASE_SENSITIVE_SPACING_OFF" glib:nick="case-sensitive-spacing-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_CASE_SENSITIVE_SPACING_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_CASE_SENSITIVE_LAYOUT</doc>
      </member>
      <member name="alternate_horiz_kana_on" value="0" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_ALTERNATE_HORIZ_KANA_ON" glib:nick="alternate-horiz-kana-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_ALTERNATE_HORIZ_KANA_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_ALTERNATE_KANA</doc>
      </member>
      <member name="alternate_horiz_kana_off" value="1" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_ALTERNATE_HORIZ_KANA_OFF" glib:nick="alternate-horiz-kana-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_ALTERNATE_HORIZ_KANA_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_ALTERNATE_KANA</doc>
      </member>
      <member name="alternate_vert_kana_on" value="2" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_ALTERNATE_VERT_KANA_ON" glib:nick="alternate-vert-kana-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_ALTERNATE_VERT_KANA_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_ALTERNATE_KANA</doc>
      </member>
      <member name="alternate_vert_kana_off" value="3" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_ALTERNATE_VERT_KANA_OFF" glib:nick="alternate-vert-kana-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_ALTERNATE_VERT_KANA_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_ALTERNATE_KANA</doc>
      </member>
      <member name="no_stylistic_alternates" value="0" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_NO_STYLISTIC_ALTERNATES" glib:nick="no-stylistic-alternates" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_NO_STYLISTIC_ALTERNATES">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES</doc>
      </member>
      <member name="stylistic_alt_one_on" value="2" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_ONE_ON" glib:nick="stylistic-alt-one-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_ONE_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES</doc>
      </member>
      <member name="stylistic_alt_one_off" value="3" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_ONE_OFF" glib:nick="stylistic-alt-one-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_ONE_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES</doc>
      </member>
      <member name="stylistic_alt_two_on" value="4" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_TWO_ON" glib:nick="stylistic-alt-two-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_TWO_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES</doc>
      </member>
      <member name="stylistic_alt_two_off" value="5" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_TWO_OFF" glib:nick="stylistic-alt-two-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_TWO_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES</doc>
      </member>
      <member name="stylistic_alt_three_on" value="6" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_THREE_ON" glib:nick="stylistic-alt-three-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_THREE_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES</doc>
      </member>
      <member name="stylistic_alt_three_off" value="7" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_THREE_OFF" glib:nick="stylistic-alt-three-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_THREE_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES</doc>
      </member>
      <member name="stylistic_alt_four_on" value="8" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_FOUR_ON" glib:nick="stylistic-alt-four-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_FOUR_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES</doc>
      </member>
      <member name="stylistic_alt_four_off" value="9" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_FOUR_OFF" glib:nick="stylistic-alt-four-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_FOUR_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES</doc>
      </member>
      <member name="stylistic_alt_five_on" value="10" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_FIVE_ON" glib:nick="stylistic-alt-five-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_FIVE_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES</doc>
      </member>
      <member name="stylistic_alt_five_off" value="11" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_FIVE_OFF" glib:nick="stylistic-alt-five-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_FIVE_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES</doc>
      </member>
      <member name="stylistic_alt_six_on" value="12" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_SIX_ON" glib:nick="stylistic-alt-six-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_SIX_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES</doc>
      </member>
      <member name="stylistic_alt_six_off" value="13" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_SIX_OFF" glib:nick="stylistic-alt-six-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_SIX_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES</doc>
      </member>
      <member name="stylistic_alt_seven_on" value="14" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_SEVEN_ON" glib:nick="stylistic-alt-seven-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_SEVEN_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES</doc>
      </member>
      <member name="stylistic_alt_seven_off" value="15" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_SEVEN_OFF" glib:nick="stylistic-alt-seven-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_SEVEN_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES</doc>
      </member>
      <member name="stylistic_alt_eight_on" value="16" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_EIGHT_ON" glib:nick="stylistic-alt-eight-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_EIGHT_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES</doc>
      </member>
      <member name="stylistic_alt_eight_off" value="17" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_EIGHT_OFF" glib:nick="stylistic-alt-eight-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_EIGHT_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES</doc>
      </member>
      <member name="stylistic_alt_nine_on" value="18" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_NINE_ON" glib:nick="stylistic-alt-nine-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_NINE_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES</doc>
      </member>
      <member name="stylistic_alt_nine_off" value="19" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_NINE_OFF" glib:nick="stylistic-alt-nine-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_NINE_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES</doc>
      </member>
      <member name="stylistic_alt_ten_on" value="20" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_TEN_ON" glib:nick="stylistic-alt-ten-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_TEN_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES</doc>
      </member>
      <member name="stylistic_alt_ten_off" value="21" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_TEN_OFF" glib:nick="stylistic-alt-ten-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_TEN_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES</doc>
      </member>
      <member name="stylistic_alt_eleven_on" value="22" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_ELEVEN_ON" glib:nick="stylistic-alt-eleven-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_ELEVEN_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES</doc>
      </member>
      <member name="stylistic_alt_eleven_off" value="23" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_ELEVEN_OFF" glib:nick="stylistic-alt-eleven-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_ELEVEN_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES</doc>
      </member>
      <member name="stylistic_alt_twelve_on" value="24" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_TWELVE_ON" glib:nick="stylistic-alt-twelve-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_TWELVE_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES</doc>
      </member>
      <member name="stylistic_alt_twelve_off" value="25" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_TWELVE_OFF" glib:nick="stylistic-alt-twelve-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_TWELVE_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES</doc>
      </member>
      <member name="stylistic_alt_thirteen_on" value="26" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_THIRTEEN_ON" glib:nick="stylistic-alt-thirteen-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_THIRTEEN_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES</doc>
      </member>
      <member name="stylistic_alt_thirteen_off" value="27" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_THIRTEEN_OFF" glib:nick="stylistic-alt-thirteen-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_THIRTEEN_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES</doc>
      </member>
      <member name="stylistic_alt_fourteen_on" value="28" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_FOURTEEN_ON" glib:nick="stylistic-alt-fourteen-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_FOURTEEN_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES</doc>
      </member>
      <member name="stylistic_alt_fourteen_off" value="29" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_FOURTEEN_OFF" glib:nick="stylistic-alt-fourteen-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_FOURTEEN_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES</doc>
      </member>
      <member name="stylistic_alt_fifteen_on" value="30" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_FIFTEEN_ON" glib:nick="stylistic-alt-fifteen-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_FIFTEEN_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES</doc>
      </member>
      <member name="stylistic_alt_fifteen_off" value="31" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_FIFTEEN_OFF" glib:nick="stylistic-alt-fifteen-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_FIFTEEN_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES</doc>
      </member>
      <member name="stylistic_alt_sixteen_on" value="32" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_SIXTEEN_ON" glib:nick="stylistic-alt-sixteen-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_SIXTEEN_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES</doc>
      </member>
      <member name="stylistic_alt_sixteen_off" value="33" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_SIXTEEN_OFF" glib:nick="stylistic-alt-sixteen-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_SIXTEEN_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES</doc>
      </member>
      <member name="stylistic_alt_seventeen_on" value="34" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_SEVENTEEN_ON" glib:nick="stylistic-alt-seventeen-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_SEVENTEEN_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES</doc>
      </member>
      <member name="stylistic_alt_seventeen_off" value="35" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_SEVENTEEN_OFF" glib:nick="stylistic-alt-seventeen-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_SEVENTEEN_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES</doc>
      </member>
      <member name="stylistic_alt_eighteen_on" value="36" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_EIGHTEEN_ON" glib:nick="stylistic-alt-eighteen-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_EIGHTEEN_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES</doc>
      </member>
      <member name="stylistic_alt_eighteen_off" value="37" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_EIGHTEEN_OFF" glib:nick="stylistic-alt-eighteen-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_EIGHTEEN_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES</doc>
      </member>
      <member name="stylistic_alt_nineteen_on" value="38" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_NINETEEN_ON" glib:nick="stylistic-alt-nineteen-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_NINETEEN_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES</doc>
      </member>
      <member name="stylistic_alt_nineteen_off" value="39" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_NINETEEN_OFF" glib:nick="stylistic-alt-nineteen-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_NINETEEN_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES</doc>
      </member>
      <member name="stylistic_alt_twenty_on" value="40" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_TWENTY_ON" glib:nick="stylistic-alt-twenty-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_TWENTY_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES</doc>
      </member>
      <member name="stylistic_alt_twenty_off" value="41" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_TWENTY_OFF" glib:nick="stylistic-alt-twenty-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_STYLISTIC_ALT_TWENTY_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES</doc>
      </member>
      <member name="contextual_alternates_on" value="0" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_CONTEXTUAL_ALTERNATES_ON" glib:nick="contextual-alternates-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_CONTEXTUAL_ALTERNATES_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_CONTEXTUAL_ALTERNATIVES</doc>
      </member>
      <member name="contextual_alternates_off" value="1" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_CONTEXTUAL_ALTERNATES_OFF" glib:nick="contextual-alternates-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_CONTEXTUAL_ALTERNATES_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_CONTEXTUAL_ALTERNATIVES</doc>
      </member>
      <member name="swash_alternates_on" value="2" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_SWASH_ALTERNATES_ON" glib:nick="swash-alternates-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_SWASH_ALTERNATES_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_CONTEXTUAL_ALTERNATIVES</doc>
      </member>
      <member name="swash_alternates_off" value="3" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_SWASH_ALTERNATES_OFF" glib:nick="swash-alternates-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_SWASH_ALTERNATES_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_CONTEXTUAL_ALTERNATIVES</doc>
      </member>
      <member name="contextual_swash_alternates_on" value="4" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_CONTEXTUAL_SWASH_ALTERNATES_ON" glib:nick="contextual-swash-alternates-on" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_CONTEXTUAL_SWASH_ALTERNATES_ON">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_CONTEXTUAL_ALTERNATIVES</doc>
      </member>
      <member name="contextual_swash_alternates_off" value="5" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_CONTEXTUAL_SWASH_ALTERNATES_OFF" glib:nick="contextual-swash-alternates-off" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_CONTEXTUAL_SWASH_ALTERNATES_OFF">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_CONTEXTUAL_ALTERNATIVES</doc>
      </member>
      <member name="default_lower_case" value="0" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_DEFAULT_LOWER_CASE" glib:nick="default-lower-case" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_DEFAULT_LOWER_CASE">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_LOWER_CASE</doc>
      </member>
      <member name="lower_case_small_caps" value="1" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_LOWER_CASE_SMALL_CAPS" glib:nick="lower-case-small-caps" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_LOWER_CASE_SMALL_CAPS">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_LOWER_CASE</doc>
      </member>
      <member name="lower_case_petite_caps" value="2" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_LOWER_CASE_PETITE_CAPS" glib:nick="lower-case-petite-caps" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_LOWER_CASE_PETITE_CAPS">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_LOWER_CASE</doc>
      </member>
      <member name="default_upper_case" value="0" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_DEFAULT_UPPER_CASE" glib:nick="default-upper-case" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_DEFAULT_UPPER_CASE">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_UPPER_CASE</doc>
      </member>
      <member name="upper_case_small_caps" value="1" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_UPPER_CASE_SMALL_CAPS" glib:nick="upper-case-small-caps" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_UPPER_CASE_SMALL_CAPS">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_UPPER_CASE</doc>
      </member>
      <member name="upper_case_petite_caps" value="2" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_UPPER_CASE_PETITE_CAPS" glib:nick="upper-case-petite-caps" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_UPPER_CASE_PETITE_CAPS">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_UPPER_CASE</doc>
      </member>
      <member name="half_width_cjk_roman" value="0" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_HALF_WIDTH_CJK_ROMAN" glib:nick="half-width-cjk-roman" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_HALF_WIDTH_CJK_ROMAN">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_CJK_ROMAN_SPACING_TYPE</doc>
      </member>
      <member name="proportional_cjk_roman" value="1" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_PROPORTIONAL_CJK_ROMAN" glib:nick="proportional-cjk-roman" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_PROPORTIONAL_CJK_ROMAN">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_CJK_ROMAN_SPACING_TYPE</doc>
      </member>
      <member name="default_cjk_roman" value="2" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_DEFAULT_CJK_ROMAN" glib:nick="default-cjk-roman" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_DEFAULT_CJK_ROMAN">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_CJK_ROMAN_SPACING_TYPE</doc>
      </member>
      <member name="full_width_cjk_roman" value="3" c:identifier="HB_AAT_LAYOUT_FEATURE_SELECTOR_FULL_WIDTH_CJK_ROMAN" glib:nick="full-width-cjk-roman" glib:name="HB_AAT_LAYOUT_FEATURE_SELECTOR_FULL_WIDTH_CJK_ROMAN">
        <doc xml:space="preserve">for #HB_AAT_LAYOUT_FEATURE_TYPE_CJK_ROMAN_SPACING_TYPE</doc>
      </member>
    </enumeration>
    <enumeration name="aat_layout_feature_type_t" version="2.2.0" glib:type-name="hb_aat_layout_feature_type_t" glib:get-type="hb_gobject_aat_layout_feature_type_get_type" c:type="hb_aat_layout_feature_type_t">
      <doc xml:space="preserve">The possible feature types defined for AAT shaping.</doc>
      <member name="invalid" value="65535" c:identifier="HB_AAT_LAYOUT_FEATURE_TYPE_INVALID" glib:nick="invalid" glib:name="HB_AAT_LAYOUT_FEATURE_TYPE_INVALID">
        <doc xml:space="preserve">Initial, unset feature type</doc>
      </member>
      <member name="all_typographic" value="0" c:identifier="HB_AAT_LAYOUT_FEATURE_TYPE_ALL_TYPOGRAPHIC" glib:nick="all-typographic" glib:name="HB_AAT_LAYOUT_FEATURE_TYPE_ALL_TYPOGRAPHIC">
      </member>
      <member name="ligatures" value="1" c:identifier="HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES" glib:nick="ligatures" glib:name="HB_AAT_LAYOUT_FEATURE_TYPE_LIGATURES">
      </member>
      <member name="curisve_connection" value="2" c:identifier="HB_AAT_LAYOUT_FEATURE_TYPE_CURISVE_CONNECTION" glib:nick="curisve-connection" glib:name="HB_AAT_LAYOUT_FEATURE_TYPE_CURISVE_CONNECTION">
      </member>
      <member name="letter_case" value="3" c:identifier="HB_AAT_LAYOUT_FEATURE_TYPE_LETTER_CASE" glib:nick="letter-case" glib:name="HB_AAT_LAYOUT_FEATURE_TYPE_LETTER_CASE">
      </member>
      <member name="vertical_substitution" value="4" c:identifier="HB_AAT_LAYOUT_FEATURE_TYPE_VERTICAL_SUBSTITUTION" glib:nick="vertical-substitution" glib:name="HB_AAT_LAYOUT_FEATURE_TYPE_VERTICAL_SUBSTITUTION">
      </member>
      <member name="linguistic_rearrangement" value="5" c:identifier="HB_AAT_LAYOUT_FEATURE_TYPE_LINGUISTIC_REARRANGEMENT" glib:nick="linguistic-rearrangement" glib:name="HB_AAT_LAYOUT_FEATURE_TYPE_LINGUISTIC_REARRANGEMENT">
      </member>
      <member name="number_spacing" value="6" c:identifier="HB_AAT_LAYOUT_FEATURE_TYPE_NUMBER_SPACING" glib:nick="number-spacing" glib:name="HB_AAT_LAYOUT_FEATURE_TYPE_NUMBER_SPACING">
      </member>
      <member name="smart_swash_type" value="8" c:identifier="HB_AAT_LAYOUT_FEATURE_TYPE_SMART_SWASH_TYPE" glib:nick="smart-swash-type" glib:name="HB_AAT_LAYOUT_FEATURE_TYPE_SMART_SWASH_TYPE">
      </member>
      <member name="diacritics_type" value="9" c:identifier="HB_AAT_LAYOUT_FEATURE_TYPE_DIACRITICS_TYPE" glib:nick="diacritics-type" glib:name="HB_AAT_LAYOUT_FEATURE_TYPE_DIACRITICS_TYPE">
      </member>
      <member name="vertical_position" value="10" c:identifier="HB_AAT_LAYOUT_FEATURE_TYPE_VERTICAL_POSITION" glib:nick="vertical-position" glib:name="HB_AAT_LAYOUT_FEATURE_TYPE_VERTICAL_POSITION">
      </member>
      <member name="fractions" value="11" c:identifier="HB_AAT_LAYOUT_FEATURE_TYPE_FRACTIONS" glib:nick="fractions" glib:name="HB_AAT_LAYOUT_FEATURE_TYPE_FRACTIONS">
      </member>
      <member name="overlapping_characters_type" value="13" c:identifier="HB_AAT_LAYOUT_FEATURE_TYPE_OVERLAPPING_CHARACTERS_TYPE" glib:nick="overlapping-characters-type" glib:name="HB_AAT_LAYOUT_FEATURE_TYPE_OVERLAPPING_CHARACTERS_TYPE">
      </member>
      <member name="typographic_extras" value="14" c:identifier="HB_AAT_LAYOUT_FEATURE_TYPE_TYPOGRAPHIC_EXTRAS" glib:nick="typographic-extras" glib:name="HB_AAT_LAYOUT_FEATURE_TYPE_TYPOGRAPHIC_EXTRAS">
      </member>
      <member name="mathematical_extras" value="15" c:identifier="HB_AAT_LAYOUT_FEATURE_TYPE_MATHEMATICAL_EXTRAS" glib:nick="mathematical-extras" glib:name="HB_AAT_LAYOUT_FEATURE_TYPE_MATHEMATICAL_EXTRAS">
      </member>
      <member name="ornament_sets_type" value="16" c:identifier="HB_AAT_LAYOUT_FEATURE_TYPE_ORNAMENT_SETS_TYPE" glib:nick="ornament-sets-type" glib:name="HB_AAT_LAYOUT_FEATURE_TYPE_ORNAMENT_SETS_TYPE">
      </member>
      <member name="character_alternatives" value="17" c:identifier="HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_ALTERNATIVES" glib:nick="character-alternatives" glib:name="HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_ALTERNATIVES">
      </member>
      <member name="design_complexity_type" value="18" c:identifier="HB_AAT_LAYOUT_FEATURE_TYPE_DESIGN_COMPLEXITY_TYPE" glib:nick="design-complexity-type" glib:name="HB_AAT_LAYOUT_FEATURE_TYPE_DESIGN_COMPLEXITY_TYPE">
      </member>
      <member name="style_options" value="19" c:identifier="HB_AAT_LAYOUT_FEATURE_TYPE_STYLE_OPTIONS" glib:nick="style-options" glib:name="HB_AAT_LAYOUT_FEATURE_TYPE_STYLE_OPTIONS">
      </member>
      <member name="character_shape" value="20" c:identifier="HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_SHAPE" glib:nick="character-shape" glib:name="HB_AAT_LAYOUT_FEATURE_TYPE_CHARACTER_SHAPE">
      </member>
      <member name="number_case" value="21" c:identifier="HB_AAT_LAYOUT_FEATURE_TYPE_NUMBER_CASE" glib:nick="number-case" glib:name="HB_AAT_LAYOUT_FEATURE_TYPE_NUMBER_CASE">
      </member>
      <member name="text_spacing" value="22" c:identifier="HB_AAT_LAYOUT_FEATURE_TYPE_TEXT_SPACING" glib:nick="text-spacing" glib:name="HB_AAT_LAYOUT_FEATURE_TYPE_TEXT_SPACING">
      </member>
      <member name="transliteration" value="23" c:identifier="HB_AAT_LAYOUT_FEATURE_TYPE_TRANSLITERATION" glib:nick="transliteration" glib:name="HB_AAT_LAYOUT_FEATURE_TYPE_TRANSLITERATION">
      </member>
      <member name="annotation_type" value="24" c:identifier="HB_AAT_LAYOUT_FEATURE_TYPE_ANNOTATION_TYPE" glib:nick="annotation-type" glib:name="HB_AAT_LAYOUT_FEATURE_TYPE_ANNOTATION_TYPE">
      </member>
      <member name="kana_spacing_type" value="25" c:identifier="HB_AAT_LAYOUT_FEATURE_TYPE_KANA_SPACING_TYPE" glib:nick="kana-spacing-type" glib:name="HB_AAT_LAYOUT_FEATURE_TYPE_KANA_SPACING_TYPE">
      </member>
      <member name="ideographic_spacing_type" value="26" c:identifier="HB_AAT_LAYOUT_FEATURE_TYPE_IDEOGRAPHIC_SPACING_TYPE" glib:nick="ideographic-spacing-type" glib:name="HB_AAT_LAYOUT_FEATURE_TYPE_IDEOGRAPHIC_SPACING_TYPE">
      </member>
      <member name="unicode_decomposition_type" value="27" c:identifier="HB_AAT_LAYOUT_FEATURE_TYPE_UNICODE_DECOMPOSITION_TYPE" glib:nick="unicode-decomposition-type" glib:name="HB_AAT_LAYOUT_FEATURE_TYPE_UNICODE_DECOMPOSITION_TYPE">
      </member>
      <member name="ruby_kana" value="28" c:identifier="HB_AAT_LAYOUT_FEATURE_TYPE_RUBY_KANA" glib:nick="ruby-kana" glib:name="HB_AAT_LAYOUT_FEATURE_TYPE_RUBY_KANA">
      </member>
      <member name="cjk_symbol_alternatives_type" value="29" c:identifier="HB_AAT_LAYOUT_FEATURE_TYPE_CJK_SYMBOL_ALTERNATIVES_TYPE" glib:nick="cjk-symbol-alternatives-type" glib:name="HB_AAT_LAYOUT_FEATURE_TYPE_CJK_SYMBOL_ALTERNATIVES_TYPE">
      </member>
      <member name="ideographic_alternatives_type" value="30" c:identifier="HB_AAT_LAYOUT_FEATURE_TYPE_IDEOGRAPHIC_ALTERNATIVES_TYPE" glib:nick="ideographic-alternatives-type" glib:name="HB_AAT_LAYOUT_FEATURE_TYPE_IDEOGRAPHIC_ALTERNATIVES_TYPE">
      </member>
      <member name="cjk_vertical_roman_placement_type" value="31" c:identifier="HB_AAT_LAYOUT_FEATURE_TYPE_CJK_VERTICAL_ROMAN_PLACEMENT_TYPE" glib:nick="cjk-vertical-roman-placement-type" glib:name="HB_AAT_LAYOUT_FEATURE_TYPE_CJK_VERTICAL_ROMAN_PLACEMENT_TYPE">
      </member>
      <member name="italic_cjk_roman" value="32" c:identifier="HB_AAT_LAYOUT_FEATURE_TYPE_ITALIC_CJK_ROMAN" glib:nick="italic-cjk-roman" glib:name="HB_AAT_LAYOUT_FEATURE_TYPE_ITALIC_CJK_ROMAN">
      </member>
      <member name="case_sensitive_layout" value="33" c:identifier="HB_AAT_LAYOUT_FEATURE_TYPE_CASE_SENSITIVE_LAYOUT" glib:nick="case-sensitive-layout" glib:name="HB_AAT_LAYOUT_FEATURE_TYPE_CASE_SENSITIVE_LAYOUT">
      </member>
      <member name="alternate_kana" value="34" c:identifier="HB_AAT_LAYOUT_FEATURE_TYPE_ALTERNATE_KANA" glib:nick="alternate-kana" glib:name="HB_AAT_LAYOUT_FEATURE_TYPE_ALTERNATE_KANA">
      </member>
      <member name="stylistic_alternatives" value="35" c:identifier="HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES" glib:nick="stylistic-alternatives" glib:name="HB_AAT_LAYOUT_FEATURE_TYPE_STYLISTIC_ALTERNATIVES">
      </member>
      <member name="contextual_alternatives" value="36" c:identifier="HB_AAT_LAYOUT_FEATURE_TYPE_CONTEXTUAL_ALTERNATIVES" glib:nick="contextual-alternatives" glib:name="HB_AAT_LAYOUT_FEATURE_TYPE_CONTEXTUAL_ALTERNATIVES">
      </member>
      <member name="lower_case" value="37" c:identifier="HB_AAT_LAYOUT_FEATURE_TYPE_LOWER_CASE" glib:nick="lower-case" glib:name="HB_AAT_LAYOUT_FEATURE_TYPE_LOWER_CASE">
      </member>
      <member name="upper_case" value="38" c:identifier="HB_AAT_LAYOUT_FEATURE_TYPE_UPPER_CASE" glib:nick="upper-case" glib:name="HB_AAT_LAYOUT_FEATURE_TYPE_UPPER_CASE">
      </member>
      <member name="language_tag_type" value="39" c:identifier="HB_AAT_LAYOUT_FEATURE_TYPE_LANGUAGE_TAG_TYPE" glib:nick="language-tag-type" glib:name="HB_AAT_LAYOUT_FEATURE_TYPE_LANGUAGE_TAG_TYPE">
      </member>
      <member name="cjk_roman_spacing_type" value="103" c:identifier="HB_AAT_LAYOUT_FEATURE_TYPE_CJK_ROMAN_SPACING_TYPE" glib:nick="cjk-roman-spacing-type" glib:name="HB_AAT_LAYOUT_FEATURE_TYPE_CJK_ROMAN_SPACING_TYPE">
      </member>
    </enumeration>
    <function name="blob_copy_writable_or_fail" c:identifier="hb_blob_copy_writable_or_fail" version="1.8.0">
      <doc xml:space="preserve">Makes a writable copy of @blob.</doc>
      <return-value transfer-ownership="full">
        <doc xml:space="preserve">The new blob, or nullptr if allocation failed</doc>
        <type name="blob_t" c:type="hb_blob_t*"/>
      </return-value>
      <parameters>
        <parameter name="blob" transfer-ownership="none">
          <doc xml:space="preserve">A blob.</doc>
          <type name="blob_t" c:type="hb_blob_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="blob_create" c:identifier="hb_blob_create" version="0.9.2" introspectable="0">
      <doc xml:space="preserve">Creates a new "blob" object wrapping @data.  The @mode parameter is used
to negotiate ownership and lifecycle of @data.</doc>
      <return-value transfer-ownership="full">
        <doc xml:space="preserve">New blob, or the empty blob if something failed or if @length is
zero.  Destroy with hb_blob_destroy().</doc>
        <type name="blob_t" c:type="hb_blob_t*"/>
      </return-value>
      <parameters>
        <parameter name="data" transfer-ownership="none">
          <doc xml:space="preserve">Pointer to blob data.</doc>
          <type name="utf8" c:type="const char*"/>
        </parameter>
        <parameter name="length" transfer-ownership="none">
          <doc xml:space="preserve">Length of @data in bytes.</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="mode" transfer-ownership="none">
          <doc xml:space="preserve">Memory mode for @data.</doc>
          <type name="memory_mode_t" c:type="hb_memory_mode_t"/>
        </parameter>
        <parameter name="user_data" transfer-ownership="none" nullable="1" allow-none="1">
          <doc xml:space="preserve">Data parameter to pass to @destroy.</doc>
          <type name="gpointer" c:type="void*"/>
        </parameter>
        <parameter name="destroy" transfer-ownership="none">
          <doc xml:space="preserve">Callback to call when @data is not needed anymore.</doc>
          <type name="destroy_func_t" c:type="hb_destroy_func_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="blob_create_from_file" c:identifier="hb_blob_create_from_file" version="1.7.7">
      <doc xml:space="preserve">Creates a new blob containing the data from the
specified binary font file.</doc>
      <return-value transfer-ownership="full">
        <doc xml:space="preserve">An #hb_blob_t pointer with the content of the file</doc>
        <type name="blob_t" c:type="hb_blob_t*"/>
      </return-value>
      <parameters>
        <parameter name="file_name" transfer-ownership="none">
          <doc xml:space="preserve">A font filename</doc>
          <type name="utf8" c:type="const char*"/>
        </parameter>
      </parameters>
    </function>
    <function name="blob_create_sub_blob" c:identifier="hb_blob_create_sub_blob" version="0.9.2">
      <doc xml:space="preserve">Returns a blob that represents a range of bytes in @parent.  The new
blob is always created with %HB_MEMORY_MODE_READONLY, meaning that it
will never modify data in the parent blob.  The parent data is not
expected to be modified, and will result in undefined behavior if it
is.

Makes @parent immutable.</doc>
      <return-value transfer-ownership="full">
        <doc xml:space="preserve">New blob, or the empty blob if something failed or if
@length is zero or @offset is beyond the end of @parent's data.  Destroy
with hb_blob_destroy().</doc>
        <type name="blob_t" c:type="hb_blob_t*"/>
      </return-value>
      <parameters>
        <parameter name="parent" transfer-ownership="none">
          <doc xml:space="preserve">Parent blob.</doc>
          <type name="blob_t" c:type="hb_blob_t*"/>
        </parameter>
        <parameter name="offset" transfer-ownership="none">
          <doc xml:space="preserve">Start offset of sub-blob within @parent, in bytes.</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="length" transfer-ownership="none">
          <doc xml:space="preserve">Length of sub-blob.</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
      </parameters>
    </function>
    <function name="blob_destroy" c:identifier="hb_blob_destroy" version="0.9.2" introspectable="0">
      <doc xml:space="preserve">Decreases the reference count on @blob, and if it reaches zero, destroys
@blob, freeing all memory, possibly calling the destroy-callback the blob
was created for if it has not been called already.

See TODO:link object types for more information.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="blob" transfer-ownership="none">
          <doc xml:space="preserve">a blob.</doc>
          <type name="blob_t" c:type="hb_blob_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="blob_get_data" c:identifier="hb_blob_get_data" version="0.9.2">
      <doc xml:space="preserve">Fetches the data from a blob.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">the byte data of @blob.</doc>
        <array length="1" zero-terminated="0" c:type="const char*">
          <type name="utf8" c:type="char"/>
        </array>
      </return-value>
      <parameters>
        <parameter name="blob" transfer-ownership="none">
          <doc xml:space="preserve">a blob.</doc>
          <type name="blob_t" c:type="hb_blob_t*"/>
        </parameter>
        <parameter name="length" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The length in bytes of the data retrieved</doc>
          <type name="guint" c:type="unsigned int*"/>
        </parameter>
      </parameters>
    </function>
    <function name="blob_get_data_writable" c:identifier="hb_blob_get_data_writable" version="0.9.2">
      <doc xml:space="preserve">Tries to make blob data writable (possibly copying it) and
return pointer to data.

Fails if blob has been made immutable, or if memory allocation
fails.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">Writable blob data,
or %NULL if failed.</doc>
        <array length="1" zero-terminated="0" c:type="char*">
          <type name="utf8" c:type="char"/>
        </array>
      </return-value>
      <parameters>
        <parameter name="blob" transfer-ownership="none">
          <doc xml:space="preserve">a blob.</doc>
          <type name="blob_t" c:type="hb_blob_t*"/>
        </parameter>
        <parameter name="length" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">output length of the writable data.</doc>
          <type name="guint" c:type="unsigned int*"/>
        </parameter>
      </parameters>
    </function>
    <function name="blob_get_empty" c:identifier="hb_blob_get_empty" version="0.9.2">
      <doc xml:space="preserve">Returns the singleton empty blob.

See TODO:link object types for more information.</doc>
      <return-value transfer-ownership="full">
        <doc xml:space="preserve">The empty blob.</doc>
        <type name="blob_t" c:type="hb_blob_t*"/>
      </return-value>
    </function>
    <function name="blob_get_length" c:identifier="hb_blob_get_length" version="0.9.2">
      <doc xml:space="preserve">Fetches the length of a blob's data.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">the length of @blob data in bytes.</doc>
        <type name="guint" c:type="unsigned int"/>
      </return-value>
      <parameters>
        <parameter name="blob" transfer-ownership="none">
          <doc xml:space="preserve">a blob.</doc>
          <type name="blob_t" c:type="hb_blob_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="blob_get_user_data" c:identifier="hb_blob_get_user_data" version="0.9.2" introspectable="0">
      <doc xml:space="preserve">Fetches the user data associated with the specified key,
attached to the specified font-functions structure.</doc>
      <return-value transfer-ownership="none" nullable="1">
        <doc xml:space="preserve">A pointer to the user data</doc>
        <type name="gpointer" c:type="void*"/>
      </return-value>
      <parameters>
        <parameter name="blob" transfer-ownership="none">
          <doc xml:space="preserve">a blob</doc>
          <type name="blob_t" c:type="hb_blob_t*"/>
        </parameter>
        <parameter name="key" transfer-ownership="none">
          <doc xml:space="preserve">The user-data key to query</doc>
          <type name="user_data_key_t" c:type="hb_user_data_key_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="blob_is_immutable" c:identifier="hb_blob_is_immutable" version="0.9.2">
      <doc xml:space="preserve">Tests whether a blob is immutable.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%true if @blob is immutable, false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="blob" transfer-ownership="none">
          <doc xml:space="preserve">a blob.</doc>
          <type name="blob_t" c:type="hb_blob_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="blob_make_immutable" c:identifier="hb_blob_make_immutable" version="0.9.2">
      <doc xml:space="preserve">Makes a blob immutable.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="blob" transfer-ownership="none">
          <doc xml:space="preserve">a blob</doc>
          <type name="blob_t" c:type="hb_blob_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="blob_reference" c:identifier="hb_blob_reference" version="0.9.2" introspectable="0">
      <doc xml:space="preserve">Increases the reference count on @blob.

See TODO:link object types for more information.</doc>
      <return-value transfer-ownership="full">
        <doc xml:space="preserve">@blob.</doc>
        <type name="blob_t" c:type="hb_blob_t*"/>
      </return-value>
      <parameters>
        <parameter name="blob" transfer-ownership="none">
          <doc xml:space="preserve">a blob.</doc>
          <type name="blob_t" c:type="hb_blob_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="blob_set_user_data" c:identifier="hb_blob_set_user_data" version="0.9.2" introspectable="0">
      <doc xml:space="preserve">Attaches a user-data key/data pair to the specified blob.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%true if success, %false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="blob" transfer-ownership="none">
          <doc xml:space="preserve">An #hb_blob_t</doc>
          <type name="blob_t" c:type="hb_blob_t*"/>
        </parameter>
        <parameter name="key" transfer-ownership="none">
          <doc xml:space="preserve">The user-data key to set</doc>
          <type name="user_data_key_t" c:type="hb_user_data_key_t*"/>
        </parameter>
        <parameter name="data" transfer-ownership="none" nullable="1" allow-none="1">
          <doc xml:space="preserve">A pointer to the user data to set</doc>
          <type name="gpointer" c:type="void*"/>
        </parameter>
        <parameter name="destroy" transfer-ownership="none">
          <doc xml:space="preserve">A callback to call when @data is not needed anymore</doc>
          <type name="destroy_func_t" c:type="hb_destroy_func_t"/>
        </parameter>
        <parameter name="replace" transfer-ownership="none">
          <doc xml:space="preserve">Whether to replace an existing data with the same key</doc>
          <type name="bool_t" c:type="hb_bool_t"/>
        </parameter>
      </parameters>
    </function>
    <record name="blob_t" c:type="hb_blob_t" glib:type-name="hb_blob_t" glib:get-type="hb_gobject_blob_get_type" c:symbol-prefix="gobject_blob">
      <doc xml:space="preserve">Data type for blobs. A blob wraps a chunk of binary
data and facilitates its lifecycle management between
a client program and HarfBuzz.</doc>
    </record>
    <function name="buffer_add" c:identifier="hb_buffer_add" version="0.9.7">
      <doc xml:space="preserve">Appends a character with the Unicode value of @codepoint to @buffer, and
gives it the initial cluster value of @cluster. Clusters can be any thing
the client wants, they are usually used to refer to the index of the
character in the input text stream and are output in
#hb_glyph_info_t.cluster field.

This function does not check the validity of @codepoint, it is up to the
caller to ensure it is a valid Unicode code point.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">An #hb_buffer_t</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
        <parameter name="codepoint" transfer-ownership="none">
          <doc xml:space="preserve">A Unicode code point.</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="cluster" transfer-ownership="none">
          <doc xml:space="preserve">The cluster value of @codepoint.</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
      </parameters>
    </function>
    <function name="buffer_add_codepoints" c:identifier="hb_buffer_add_codepoints" version="0.9.31">
      <doc xml:space="preserve">Appends characters from @text array to @buffer. The @item_offset is the
position of the first character from @text that will be appended, and
@item_length is the number of character. When shaping part of a larger text
(e.g. a run of text from a paragraph), instead of passing just the substring
corresponding to the run, it is preferable to pass the whole
paragraph and specify the run start and length as @item_offset and
@item_length, respectively, to give HarfBuzz the full context to be able,
for example, to do cross-run Arabic shaping or properly handle combining
marks at stat of run.

This function does not check the validity of @text, it is up to the caller
to ensure it contains a valid Unicode code points.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">a #hb_buffer_t to append characters to.</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
        <parameter name="text" transfer-ownership="none">
          <doc xml:space="preserve">an array of Unicode code points to append.</doc>
          <array length="2" zero-terminated="0" c:type="const hb_codepoint_t*">
            <type name="codepoint_t" c:type="hb_codepoint_t"/>
          </array>
        </parameter>
        <parameter name="text_length" transfer-ownership="none">
          <doc xml:space="preserve">the length of the @text, or -1 if it is %NULL terminated.</doc>
          <type name="gint" c:type="int"/>
        </parameter>
        <parameter name="item_offset" transfer-ownership="none">
          <doc xml:space="preserve">the offset of the first code point to add to the @buffer.</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="item_length" transfer-ownership="none">
          <doc xml:space="preserve">the number of code points to add to the @buffer, or -1 for the
              end of @text (assuming it is %NULL terminated).</doc>
          <type name="gint" c:type="int"/>
        </parameter>
      </parameters>
    </function>
    <function name="buffer_add_latin1" c:identifier="hb_buffer_add_latin1" version="0.9.39">
      <doc xml:space="preserve">Similar to hb_buffer_add_codepoints(), but allows only access to first 256
Unicode code points that can fit in 8-bit strings.

&lt;note&gt;Has nothing to do with non-Unicode Latin-1 encoding.&lt;/note&gt;</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">An #hb_buffer_t</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
        <parameter name="text" transfer-ownership="none">
          <doc xml:space="preserve">an array of UTF-8
              characters to append</doc>
          <array length="2" zero-terminated="0" c:type="const uint8_t*">
            <type name="guint8"/>
          </array>
        </parameter>
        <parameter name="text_length" transfer-ownership="none">
          <doc xml:space="preserve">the length of the @text, or -1 if it is %NULL terminated</doc>
          <type name="gint" c:type="int"/>
        </parameter>
        <parameter name="item_offset" transfer-ownership="none">
          <doc xml:space="preserve">the offset of the first character to add to the @buffer</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="item_length" transfer-ownership="none">
          <doc xml:space="preserve">the number of characters to add to the @buffer, or -1 for the
              end of @text (assuming it is %NULL terminated)</doc>
          <type name="gint" c:type="int"/>
        </parameter>
      </parameters>
    </function>
    <function name="buffer_add_utf16" c:identifier="hb_buffer_add_utf16" version="0.9.2">
      <doc xml:space="preserve">See hb_buffer_add_codepoints().

Replaces invalid UTF-16 characters with the @buffer replacement code point,
see hb_buffer_set_replacement_codepoint().</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">An #hb_buffer_t</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
        <parameter name="text" transfer-ownership="none">
          <doc xml:space="preserve">An array of UTF-16 characters to append</doc>
          <array length="2" zero-terminated="0" c:type="const uint16_t*">
            <type name="guint16" c:type="uint16_t"/>
          </array>
        </parameter>
        <parameter name="text_length" transfer-ownership="none">
          <doc xml:space="preserve">The length of the @text, or -1 if it is %NULL terminated</doc>
          <type name="gint" c:type="int"/>
        </parameter>
        <parameter name="item_offset" transfer-ownership="none">
          <doc xml:space="preserve">The offset of the first character to add to the @buffer</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="item_length" transfer-ownership="none">
          <doc xml:space="preserve">The number of characters to add to the @buffer, or -1 for the
              end of @text (assuming it is %NULL terminated)</doc>
          <type name="gint" c:type="int"/>
        </parameter>
      </parameters>
    </function>
    <function name="buffer_add_utf32" c:identifier="hb_buffer_add_utf32" version="0.9.2">
      <doc xml:space="preserve">See hb_buffer_add_codepoints().

Replaces invalid UTF-32 characters with the @buffer replacement code point,
see hb_buffer_set_replacement_codepoint().</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">An #hb_buffer_t</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
        <parameter name="text" transfer-ownership="none">
          <doc xml:space="preserve">An array of UTF-32 characters to append</doc>
          <array length="2" zero-terminated="0" c:type="const uint32_t*">
            <type name="guint32" c:type="uint32_t"/>
          </array>
        </parameter>
        <parameter name="text_length" transfer-ownership="none">
          <doc xml:space="preserve">The length of the @text, or -1 if it is %NULL terminated</doc>
          <type name="gint" c:type="int"/>
        </parameter>
        <parameter name="item_offset" transfer-ownership="none">
          <doc xml:space="preserve">The offset of the first character to add to the @buffer</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="item_length" transfer-ownership="none">
          <doc xml:space="preserve">The number of characters to add to the @buffer, or -1 for the
              end of @text (assuming it is %NULL terminated)</doc>
          <type name="gint" c:type="int"/>
        </parameter>
      </parameters>
    </function>
    <function name="buffer_add_utf8" c:identifier="hb_buffer_add_utf8" version="0.9.2">
      <doc xml:space="preserve">See hb_buffer_add_codepoints().

Replaces invalid UTF-8 characters with the @buffer replacement code point,
see hb_buffer_set_replacement_codepoint().</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">An #hb_buffer_t</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
        <parameter name="text" transfer-ownership="none">
          <doc xml:space="preserve">An array of UTF-8
              characters to append.</doc>
          <array length="2" zero-terminated="0" c:type="const char*">
            <type name="guint8"/>
          </array>
        </parameter>
        <parameter name="text_length" transfer-ownership="none">
          <doc xml:space="preserve">The length of the @text, or -1 if it is %NULL terminated.</doc>
          <type name="gint" c:type="int"/>
        </parameter>
        <parameter name="item_offset" transfer-ownership="none">
          <doc xml:space="preserve">The offset of the first character to add to the @buffer.</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="item_length" transfer-ownership="none">
          <doc xml:space="preserve">The number of characters to add to the @buffer, or -1 for the
              end of @text (assuming it is %NULL terminated).</doc>
          <type name="gint" c:type="int"/>
        </parameter>
      </parameters>
    </function>
    <function name="buffer_allocation_successful" c:identifier="hb_buffer_allocation_successful" version="0.9.2">
      <doc xml:space="preserve">Check if allocating memory for the buffer succeeded.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%true if @buffer memory allocation succeeded, %false otherwise.</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">An #hb_buffer_t</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="buffer_append" c:identifier="hb_buffer_append" version="1.5.0">
      <doc xml:space="preserve">Append (part of) contents of another buffer to this buffer.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">An #hb_buffer_t</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
        <parameter name="source" transfer-ownership="none">
          <doc xml:space="preserve">source #hb_buffer_t</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
        <parameter name="start" transfer-ownership="none">
          <doc xml:space="preserve">start index into source buffer to copy.  Use 0 to copy from start of buffer.</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="end" transfer-ownership="none">
          <doc xml:space="preserve">end index into source buffer to copy.  Use @HB_FEATURE_GLOBAL_END to copy to end of buffer.</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
      </parameters>
    </function>
    <function name="buffer_clear_contents" c:identifier="hb_buffer_clear_contents" version="0.9.11">
      <doc xml:space="preserve">Similar to hb_buffer_reset(), but does not clear the Unicode functions and
the replacement code point.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">An #hb_buffer_t</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
      </parameters>
    </function>
    <enumeration name="buffer_cluster_level_t" version="0.9.42" glib:type-name="hb_buffer_cluster_level_t" glib:get-type="hb_gobject_buffer_cluster_level_get_type" c:type="hb_buffer_cluster_level_t">
      <doc xml:space="preserve">Data type for holding HarfBuzz's clustering behavior options. The cluster level
dictates one aspect of how HarfBuzz will treat non-base characters
during shaping.

In @HB_BUFFER_CLUSTER_LEVEL_MONOTONE_GRAPHEMES, non-base
characters are merged into the cluster of the base character that precedes them.

In @HB_BUFFER_CLUSTER_LEVEL_MONOTONE_CHARACTERS, non-base characters are initially
assigned their own cluster values, which are not merged into preceding base
clusters. This allows HarfBuzz to perform additional operations like reorder
sequences of adjacent marks.

@HB_BUFFER_CLUSTER_LEVEL_MONOTONE_GRAPHEMES is the default, because it maintains
backward compatibility with older versions of HarfBuzz. New client programs that
do not need to maintain such backward compatibility are recommended to use
@HB_BUFFER_CLUSTER_LEVEL_MONOTONE_CHARACTERS instead of the default.</doc>
      <member name="monotone_graphemes" value="0" c:identifier="HB_BUFFER_CLUSTER_LEVEL_MONOTONE_GRAPHEMES" glib:nick="monotone-graphemes" glib:name="HB_BUFFER_CLUSTER_LEVEL_MONOTONE_GRAPHEMES">
        <doc xml:space="preserve">Return cluster values grouped by graphemes into
  monotone order.</doc>
      </member>
      <member name="monotone_characters" value="1" c:identifier="HB_BUFFER_CLUSTER_LEVEL_MONOTONE_CHARACTERS" glib:nick="monotone-characters" glib:name="HB_BUFFER_CLUSTER_LEVEL_MONOTONE_CHARACTERS">
        <doc xml:space="preserve">Return cluster values grouped into monotone order.</doc>
      </member>
      <member name="characters" value="2" c:identifier="HB_BUFFER_CLUSTER_LEVEL_CHARACTERS" glib:nick="characters" glib:name="HB_BUFFER_CLUSTER_LEVEL_CHARACTERS">
        <doc xml:space="preserve">Don't group cluster values.</doc>
      </member>
      <member name="default" value="0" c:identifier="HB_BUFFER_CLUSTER_LEVEL_DEFAULT" glib:nick="default" glib:name="HB_BUFFER_CLUSTER_LEVEL_DEFAULT">
        <doc xml:space="preserve">Default cluster level,
  equal to @HB_BUFFER_CLUSTER_LEVEL_MONOTONE_GRAPHEMES.</doc>
      </member>
    </enumeration>
    <enumeration name="buffer_content_type_t" glib:type-name="hb_buffer_content_type_t" glib:get-type="hb_gobject_buffer_content_type_get_type" c:type="hb_buffer_content_type_t">
      <member name="invalid" value="0" c:identifier="HB_BUFFER_CONTENT_TYPE_INVALID" glib:nick="invalid" glib:name="HB_BUFFER_CONTENT_TYPE_INVALID">
        <doc xml:space="preserve">Initial value for new buffer.</doc>
      </member>
      <member name="unicode" value="1" c:identifier="HB_BUFFER_CONTENT_TYPE_UNICODE" glib:nick="unicode" glib:name="HB_BUFFER_CONTENT_TYPE_UNICODE">
        <doc xml:space="preserve">The buffer contains input characters (before shaping).</doc>
      </member>
      <member name="glyphs" value="2" c:identifier="HB_BUFFER_CONTENT_TYPE_GLYPHS" glib:nick="glyphs" glib:name="HB_BUFFER_CONTENT_TYPE_GLYPHS">
        <doc xml:space="preserve">The buffer contains output glyphs (after shaping).</doc>
      </member>
    </enumeration>
    <function name="buffer_create" c:identifier="hb_buffer_create" version="0.9.2">
      <doc xml:space="preserve">Creates a new #hb_buffer_t with all properties to defaults.</doc>
      <return-value transfer-ownership="full">
        <doc xml:space="preserve">
A newly allocated #hb_buffer_t with a reference count of 1. The initial
reference count should be released with hb_buffer_destroy() when you are done
using the #hb_buffer_t. This function never returns %NULL. If memory cannot
be allocated, a special #hb_buffer_t object will be returned on which
hb_buffer_allocation_successful() returns %false.</doc>
        <type name="buffer_t" c:type="hb_buffer_t*"/>
      </return-value>
    </function>
    <function name="buffer_deserialize_glyphs" c:identifier="hb_buffer_deserialize_glyphs" version="0.9.7">
      <return-value transfer-ownership="none">
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">an #hb_buffer_t buffer.</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
        <parameter name="buf" transfer-ownership="none">
          <array length="2" zero-terminated="0" c:type="const char*">
            <type name="utf8" c:type="char"/>
          </array>
        </parameter>
        <parameter name="buf_len" transfer-ownership="none">
          <type name="gint" c:type="int"/>
        </parameter>
        <parameter name="end_ptr" direction="out" caller-allocates="0" transfer-ownership="full">
          <type name="utf8" c:type="const char**"/>
        </parameter>
        <parameter name="font" transfer-ownership="none">
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="format" transfer-ownership="none">
          <type name="buffer_serialize_format_t" c:type="hb_buffer_serialize_format_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="buffer_deserialize_unicode" c:identifier="hb_buffer_deserialize_unicode" version="2.7.3">
      <return-value transfer-ownership="none">
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">an #hb_buffer_t buffer.</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
        <parameter name="buf" transfer-ownership="none">
          <array length="2" zero-terminated="0" c:type="const char*">
            <type name="utf8" c:type="char"/>
          </array>
        </parameter>
        <parameter name="buf_len" transfer-ownership="none">
          <type name="gint" c:type="int"/>
        </parameter>
        <parameter name="end_ptr" direction="out" caller-allocates="0" transfer-ownership="full">
          <type name="utf8" c:type="const char**"/>
        </parameter>
        <parameter name="format" transfer-ownership="none">
          <type name="buffer_serialize_format_t" c:type="hb_buffer_serialize_format_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="buffer_destroy" c:identifier="hb_buffer_destroy" version="0.9.2" introspectable="0">
      <doc xml:space="preserve">Deallocate the @buffer.
Decreases the reference count on @buffer by one. If the result is zero, then
@buffer and all associated resources are freed. See hb_buffer_reference().</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">An #hb_buffer_t</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="buffer_diff" c:identifier="hb_buffer_diff" version="1.5.0">
      <doc xml:space="preserve">If dottedcircle_glyph is (hb_codepoint_t) -1 then %HB_BUFFER_DIFF_FLAG_DOTTED_CIRCLE_PRESENT
and %HB_BUFFER_DIFF_FLAG_NOTDEF_PRESENT are never returned.  This should be used by most
callers if just comparing two buffers is needed.</doc>
      <return-value transfer-ownership="none">
        <type name="buffer_diff_flags_t" c:type="hb_buffer_diff_flags_t"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">a buffer.</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
        <parameter name="reference" transfer-ownership="none">
          <doc xml:space="preserve">other buffer to compare to.</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
        <parameter name="dottedcircle_glyph" transfer-ownership="none">
          <doc xml:space="preserve">glyph id of U+25CC DOTTED CIRCLE, or (hb_codepont_t) -1.</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="position_fuzz" transfer-ownership="none">
          <doc xml:space="preserve">allowed absolute difference in position values.</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
      </parameters>
    </function>
    <bitfield name="buffer_diff_flags_t" glib:type-name="hb_buffer_diff_flags_t" glib:get-type="hb_gobject_buffer_diff_flags_get_type" c:type="hb_buffer_diff_flags_t">
      <member name="equal" value="0" c:identifier="HB_BUFFER_DIFF_FLAG_EQUAL" glib:nick="equal" glib:name="HB_BUFFER_DIFF_FLAG_EQUAL">
      </member>
      <member name="content_type_mismatch" value="1" c:identifier="HB_BUFFER_DIFF_FLAG_CONTENT_TYPE_MISMATCH" glib:nick="content-type-mismatch" glib:name="HB_BUFFER_DIFF_FLAG_CONTENT_TYPE_MISMATCH">
      </member>
      <member name="length_mismatch" value="2" c:identifier="HB_BUFFER_DIFF_FLAG_LENGTH_MISMATCH" glib:nick="length-mismatch" glib:name="HB_BUFFER_DIFF_FLAG_LENGTH_MISMATCH">
      </member>
      <member name="notdef_present" value="4" c:identifier="HB_BUFFER_DIFF_FLAG_NOTDEF_PRESENT" glib:nick="notdef-present" glib:name="HB_BUFFER_DIFF_FLAG_NOTDEF_PRESENT">
      </member>
      <member name="dotted_circle_present" value="8" c:identifier="HB_BUFFER_DIFF_FLAG_DOTTED_CIRCLE_PRESENT" glib:nick="dotted-circle-present" glib:name="HB_BUFFER_DIFF_FLAG_DOTTED_CIRCLE_PRESENT">
      </member>
      <member name="codepoint_mismatch" value="16" c:identifier="HB_BUFFER_DIFF_FLAG_CODEPOINT_MISMATCH" glib:nick="codepoint-mismatch" glib:name="HB_BUFFER_DIFF_FLAG_CODEPOINT_MISMATCH">
      </member>
      <member name="cluster_mismatch" value="32" c:identifier="HB_BUFFER_DIFF_FLAG_CLUSTER_MISMATCH" glib:nick="cluster-mismatch" glib:name="HB_BUFFER_DIFF_FLAG_CLUSTER_MISMATCH">
      </member>
      <member name="glyph_flags_mismatch" value="64" c:identifier="HB_BUFFER_DIFF_FLAG_GLYPH_FLAGS_MISMATCH" glib:nick="glyph-flags-mismatch" glib:name="HB_BUFFER_DIFF_FLAG_GLYPH_FLAGS_MISMATCH">
      </member>
      <member name="position_mismatch" value="128" c:identifier="HB_BUFFER_DIFF_FLAG_POSITION_MISMATCH" glib:nick="position-mismatch" glib:name="HB_BUFFER_DIFF_FLAG_POSITION_MISMATCH">
      </member>
    </bitfield>
    <bitfield name="buffer_flags_t" version="0.9.20" glib:type-name="hb_buffer_flags_t" glib:get-type="hb_gobject_buffer_flags_get_type" c:type="hb_buffer_flags_t">
      <member name="default" value="0" c:identifier="HB_BUFFER_FLAG_DEFAULT" glib:nick="default" glib:name="HB_BUFFER_FLAG_DEFAULT">
        <doc xml:space="preserve">the default buffer flag.</doc>
      </member>
      <member name="bot" value="1" c:identifier="HB_BUFFER_FLAG_BOT" glib:nick="bot" glib:name="HB_BUFFER_FLAG_BOT">
        <doc xml:space="preserve">flag indicating that special handling of the beginning
                     of text paragraph can be applied to this buffer. Should usually
                     be set, unless you are passing to the buffer only part
                     of the text without the full context.</doc>
      </member>
      <member name="eot" value="2" c:identifier="HB_BUFFER_FLAG_EOT" glib:nick="eot" glib:name="HB_BUFFER_FLAG_EOT">
        <doc xml:space="preserve">flag indicating that special handling of the end of text
                     paragraph can be applied to this buffer, similar to
                     @HB_BUFFER_FLAG_BOT.</doc>
      </member>
      <member name="preserve_default_ignorables" value="4" c:identifier="HB_BUFFER_FLAG_PRESERVE_DEFAULT_IGNORABLES" glib:nick="preserve-default-ignorables" glib:name="HB_BUFFER_FLAG_PRESERVE_DEFAULT_IGNORABLES">
        <doc xml:space="preserve">flag indication that character with Default_Ignorable
                     Unicode property should use the corresponding glyph
                     from the font, instead of hiding them (done by
                     replacing them with the space glyph and zeroing the
                     advance width.)  This flag takes precedence over
                     @HB_BUFFER_FLAG_REMOVE_DEFAULT_IGNORABLES.</doc>
      </member>
      <member name="remove_default_ignorables" value="8" c:identifier="HB_BUFFER_FLAG_REMOVE_DEFAULT_IGNORABLES" glib:nick="remove-default-ignorables" glib:name="HB_BUFFER_FLAG_REMOVE_DEFAULT_IGNORABLES">
        <doc xml:space="preserve">flag indication that character with Default_Ignorable
                     Unicode property should be removed from glyph string
                     instead of hiding them (done by replacing them with the
                     space glyph and zeroing the advance width.)
                     @HB_BUFFER_FLAG_PRESERVE_DEFAULT_IGNORABLES takes
                     precedence over this flag. Since: 1.8.0</doc>
      </member>
      <member name="do_not_insert_dotted_circle" value="16" c:identifier="HB_BUFFER_FLAG_DO_NOT_INSERT_DOTTED_CIRCLE" glib:nick="do-not-insert-dotted-circle" glib:name="HB_BUFFER_FLAG_DO_NOT_INSERT_DOTTED_CIRCLE">
        <doc xml:space="preserve">flag indicating that a dotted circle should
                     not be inserted in the rendering of incorrect
                     character sequences (such at &lt;0905 093E&gt;). Since: 2.4</doc>
      </member>
    </bitfield>
    <function name="buffer_get_cluster_level" c:identifier="hb_buffer_get_cluster_level" version="0.9.42">
      <doc xml:space="preserve">Fetches the cluster level of a buffer. The #hb_buffer_cluster_level_t
dictates one aspect of how HarfBuzz will treat non-base characters
during shaping.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">The cluster level of @buffer</doc>
        <type name="buffer_cluster_level_t" c:type="hb_buffer_cluster_level_t"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">An #hb_buffer_t</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="buffer_get_content_type" c:identifier="hb_buffer_get_content_type" version="0.9.5">
      <doc xml:space="preserve">Fetches the type of @buffer contents. Buffers are either empty, contain
characters (before shaping), or contain glyphs (the result of shaping).</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">The type of @buffer contents</doc>
        <type name="buffer_content_type_t" c:type="hb_buffer_content_type_t"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">An #hb_buffer_t</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="buffer_get_direction" c:identifier="hb_buffer_get_direction" version="0.9.2">
      <doc xml:space="preserve">See hb_buffer_set_direction()</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">The direction of the @buffer.</doc>
        <type name="direction_t" c:type="hb_direction_t"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">An #hb_buffer_t</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="buffer_get_empty" c:identifier="hb_buffer_get_empty" version="0.9.2">
      <doc xml:space="preserve">Fetches an empty #hb_buffer_t.</doc>
      <return-value transfer-ownership="full">
        <doc xml:space="preserve">The empty buffer</doc>
        <type name="buffer_t" c:type="hb_buffer_t*"/>
      </return-value>
    </function>
    <function name="buffer_get_flags" c:identifier="hb_buffer_get_flags" version="0.9.7">
      <doc xml:space="preserve">Fetches the #hb_buffer_flags_t of @buffer.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">The @buffer flags</doc>
        <type name="buffer_flags_t" c:type="hb_buffer_flags_t"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">An #hb_buffer_t</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="buffer_get_glyph_infos" c:identifier="hb_buffer_get_glyph_infos" version="0.9.2">
      <doc xml:space="preserve">Returns @buffer glyph information array.  Returned pointer
is valid as long as @buffer contents are not modified.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">
The @buffer glyph information array.
The value valid as long as buffer has not been modified.</doc>
        <array length="1" zero-terminated="0" c:type="hb_glyph_info_t*">
          <type name="glyph_info_t" c:type="hb_glyph_info_t"/>
        </array>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">An #hb_buffer_t</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
        <parameter name="length" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The output-array length.</doc>
          <type name="guint" c:type="unsigned int*"/>
        </parameter>
      </parameters>
    </function>
    <function name="buffer_get_glyph_positions" c:identifier="hb_buffer_get_glyph_positions" version="0.9.2">
      <doc xml:space="preserve">Returns @buffer glyph position array.  Returned pointer
is valid as long as @buffer contents are not modified.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">
The @buffer glyph position array.
The value valid as long as buffer has not been modified.</doc>
        <array length="1" zero-terminated="0" c:type="hb_glyph_position_t*">
          <type name="glyph_position_t" c:type="hb_glyph_position_t"/>
        </array>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">An #hb_buffer_t</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
        <parameter name="length" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The output length</doc>
          <type name="guint" c:type="unsigned int*"/>
        </parameter>
      </parameters>
    </function>
    <function name="buffer_get_invisible_glyph" c:identifier="hb_buffer_get_invisible_glyph" version="2.0.0">
      <doc xml:space="preserve">See hb_buffer_set_invisible_glyph().</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">The @buffer invisible #hb_codepoint_t</doc>
        <type name="codepoint_t" c:type="hb_codepoint_t"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">An #hb_buffer_t</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="buffer_get_language" c:identifier="hb_buffer_get_language" version="0.9.2">
      <doc xml:space="preserve">See hb_buffer_set_language().</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">
The #hb_language_t of the buffer. Must not be freed by the caller.</doc>
        <type name="language_t" c:type="hb_language_t"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">An #hb_buffer_t</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="buffer_get_length" c:identifier="hb_buffer_get_length" version="0.9.2">
      <doc xml:space="preserve">Returns the number of items in the buffer.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">The @buffer length.
The value valid as long as buffer has not been modified.</doc>
        <type name="guint" c:type="unsigned int"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">An #hb_buffer_t</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="buffer_get_replacement_codepoint" c:identifier="hb_buffer_get_replacement_codepoint" version="0.9.31">
      <doc xml:space="preserve">Fetches the #hb_codepoint_t that replaces invalid entries for a given encoding
when adding text to @buffer.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">The @buffer replacement #hb_codepoint_t</doc>
        <type name="codepoint_t" c:type="hb_codepoint_t"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">An #hb_buffer_t</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="buffer_get_script" c:identifier="hb_buffer_get_script" version="0.9.2">
      <doc xml:space="preserve">Fetches the script of @buffer.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">The #hb_script_t of the @buffer</doc>
        <type name="script_t" c:type="hb_script_t"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">An #hb_buffer_t</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="buffer_get_segment_properties" c:identifier="hb_buffer_get_segment_properties" version="0.9.7">
      <doc xml:space="preserve">Sets @props to the #hb_segment_properties_t of @buffer.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">An #hb_buffer_t</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
        <parameter name="props" direction="out" caller-allocates="1" transfer-ownership="none">
          <doc xml:space="preserve">The output #hb_segment_properties_t</doc>
          <type name="segment_properties_t" c:type="hb_segment_properties_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="buffer_get_unicode_funcs" c:identifier="hb_buffer_get_unicode_funcs" version="0.9.2">
      <doc xml:space="preserve">Fetches the Unicode-functions structure of a buffer.</doc>
      <return-value transfer-ownership="full">
        <doc xml:space="preserve">The Unicode-functions structure</doc>
        <type name="unicode_funcs_t" c:type="hb_unicode_funcs_t*"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">An #hb_buffer_t</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="buffer_get_user_data" c:identifier="hb_buffer_get_user_data" version="0.9.2" introspectable="0">
      <doc xml:space="preserve">Fetches the user data associated with the specified key,
attached to the specified buffer.</doc>
      <return-value transfer-ownership="none" nullable="1">
        <doc xml:space="preserve">A pointer to the user data</doc>
        <type name="gpointer" c:type="void*"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">An #hb_buffer_t</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
        <parameter name="key" transfer-ownership="none">
          <doc xml:space="preserve">The user-data key to query</doc>
          <type name="user_data_key_t" c:type="hb_user_data_key_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="buffer_guess_segment_properties" c:identifier="hb_buffer_guess_segment_properties" version="0.9.7">
      <doc xml:space="preserve">Sets unset buffer segment properties based on buffer Unicode
contents.  If buffer is not empty, it must have content type
%HB_BUFFER_CONTENT_TYPE_UNICODE.

If buffer script is not set (ie. is %HB_SCRIPT_INVALID), it
will be set to the Unicode script of the first character in
the buffer that has a script other than %HB_SCRIPT_COMMON,
%HB_SCRIPT_INHERITED, and %HB_SCRIPT_UNKNOWN.

Next, if buffer direction is not set (ie. is %HB_DIRECTION_INVALID),
it will be set to the natural horizontal direction of the
buffer script as returned by hb_script_get_horizontal_direction().
If hb_script_get_horizontal_direction() returns %HB_DIRECTION_INVALID,
then %HB_DIRECTION_LTR is used.

Finally, if buffer language is not set (ie. is %HB_LANGUAGE_INVALID),
it will be set to the process's default language as returned by
hb_language_get_default().  This may change in the future by
taking buffer script into consideration when choosing a language.
Note that hb_language_get_default() is NOT threadsafe the first time
it is called.  See documentation for that function for details.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">An #hb_buffer_t</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="buffer_has_positions" c:identifier="hb_buffer_has_positions" version="2.7.3">
      <doc xml:space="preserve">Returns whether @buffer has glyph position data.
A buffer gains position data when hb_buffer_get_glyph_positions() is called on it,
and cleared of position data when hb_buffer_clear_contents() is called.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%true if the @buffer has position array, %false otherwise.</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">an #hb_buffer_t.</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
      </parameters>
    </function>
    <callback name="buffer_message_func_t" c:type="hb_buffer_message_func_t">
      <return-value transfer-ownership="none">
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
        <parameter name="font" transfer-ownership="none">
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="message" transfer-ownership="none">
          <type name="utf8" c:type="const char*"/>
        </parameter>
        <parameter name="user_data" transfer-ownership="none" nullable="1" allow-none="1" closure="3">
          <type name="gpointer" c:type="void*"/>
        </parameter>
      </parameters>
    </callback>
    <function name="buffer_normalize_glyphs" c:identifier="hb_buffer_normalize_glyphs" version="0.9.2">
      <doc xml:space="preserve">Reorders a glyph buffer to have canonical in-cluster glyph order / position.
The resulting clusters should behave identical to pre-reordering clusters.

&lt;note&gt;This has nothing to do with Unicode normalization.&lt;/note&gt;</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">An #hb_buffer_t</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="buffer_pre_allocate" c:identifier="hb_buffer_pre_allocate" version="0.9.2">
      <doc xml:space="preserve">Pre allocates memory for @buffer to fit at least @size number of items.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%true if @buffer memory allocation succeeded, %false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">An #hb_buffer_t</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
        <parameter name="size" transfer-ownership="none">
          <doc xml:space="preserve">Number of items to pre allocate.</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
      </parameters>
    </function>
    <function name="buffer_reference" c:identifier="hb_buffer_reference" version="0.9.2" introspectable="0">
      <doc xml:space="preserve">Increases the reference count on @buffer by one. This prevents @buffer from
being destroyed until a matching call to hb_buffer_destroy() is made.</doc>
      <return-value transfer-ownership="full">
        <doc xml:space="preserve">
The referenced #hb_buffer_t.</doc>
        <type name="buffer_t" c:type="hb_buffer_t*"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">An #hb_buffer_t</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="buffer_reset" c:identifier="hb_buffer_reset" version="0.9.2">
      <doc xml:space="preserve">Resets the buffer to its initial status, as if it was just newly created
with hb_buffer_create().</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">An #hb_buffer_t</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="buffer_reverse" c:identifier="hb_buffer_reverse" version="0.9.2">
      <doc xml:space="preserve">Reverses buffer contents.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">An #hb_buffer_t</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="buffer_reverse_clusters" c:identifier="hb_buffer_reverse_clusters" version="0.9.2">
      <doc xml:space="preserve">Reverses buffer clusters.  That is, the buffer contents are
reversed, then each cluster (consecutive items having the
same cluster number) are reversed again.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">An #hb_buffer_t</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="buffer_reverse_range" c:identifier="hb_buffer_reverse_range" version="0.9.41">
      <doc xml:space="preserve">Reverses buffer contents between @start and @end.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">An #hb_buffer_t</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
        <parameter name="start" transfer-ownership="none">
          <doc xml:space="preserve">start index</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="end" transfer-ownership="none">
          <doc xml:space="preserve">end index</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
      </parameters>
    </function>
    <function name="buffer_serialize" c:identifier="hb_buffer_serialize" version="2.7.3">
      <doc xml:space="preserve">Serializes @buffer into a textual representation of its content, whether
Unicode codepoints or glyph identifiers and positioning information. This is
useful for showing the contents of the buffer, for example during debugging.
See the documentation of hb_buffer_serialize_unicode() and
hb_buffer_serialize_glyphs() for a description of the output format.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">The number of serialized items.</doc>
        <type name="guint" c:type="unsigned int"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">an #hb_buffer_t buffer.</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
        <parameter name="start" transfer-ownership="none">
          <doc xml:space="preserve">the first item in @buffer to serialize.</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="end" transfer-ownership="none">
          <doc xml:space="preserve">the last item in @buffer to serialize.</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="buf" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">output string to
      write serialized buffer into.</doc>
          <array length="4" zero-terminated="0" c:type="char*">
            <type name="guint8"/>
          </array>
        </parameter>
        <parameter name="buf_size" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">the size of @buf.</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="buf_consumed" direction="out" caller-allocates="0" transfer-ownership="full" optional="1" allow-none="1">
          <doc xml:space="preserve">if not %NULL, will be set to the number of byes written into @buf.</doc>
          <type name="guint" c:type="unsigned int*"/>
        </parameter>
        <parameter name="font" transfer-ownership="none" nullable="1" allow-none="1">
          <doc xml:space="preserve">the #hb_font_t used to shape this buffer, needed to
       read glyph names and extents. If %NULL, and empty font will be used.</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="format" transfer-ownership="none">
          <doc xml:space="preserve">the #hb_buffer_serialize_format_t to use for formatting the output.</doc>
          <type name="buffer_serialize_format_t" c:type="hb_buffer_serialize_format_t"/>
        </parameter>
        <parameter name="flags" transfer-ownership="none">
          <doc xml:space="preserve">the #hb_buffer_serialize_flags_t that control what glyph properties
        to serialize.</doc>
          <type name="buffer_serialize_flags_t" c:type="hb_buffer_serialize_flags_t"/>
        </parameter>
      </parameters>
    </function>
    <bitfield name="buffer_serialize_flags_t" version="0.9.20" glib:type-name="hb_buffer_serialize_flags_t" glib:get-type="hb_gobject_buffer_serialize_flags_get_type" c:type="hb_buffer_serialize_flags_t">
      <doc xml:space="preserve">Flags that control what glyph information are serialized in hb_buffer_serialize_glyphs().</doc>
      <member name="default" value="0" c:identifier="HB_BUFFER_SERIALIZE_FLAG_DEFAULT" glib:nick="default" glib:name="HB_BUFFER_SERIALIZE_FLAG_DEFAULT">
        <doc xml:space="preserve">serialize glyph names, clusters and positions.</doc>
      </member>
      <member name="no_clusters" value="1" c:identifier="HB_BUFFER_SERIALIZE_FLAG_NO_CLUSTERS" glib:nick="no-clusters" glib:name="HB_BUFFER_SERIALIZE_FLAG_NO_CLUSTERS">
        <doc xml:space="preserve">do not serialize glyph cluster.</doc>
      </member>
      <member name="no_positions" value="2" c:identifier="HB_BUFFER_SERIALIZE_FLAG_NO_POSITIONS" glib:nick="no-positions" glib:name="HB_BUFFER_SERIALIZE_FLAG_NO_POSITIONS">
        <doc xml:space="preserve">do not serialize glyph position information.</doc>
      </member>
      <member name="no_glyph_names" value="4" c:identifier="HB_BUFFER_SERIALIZE_FLAG_NO_GLYPH_NAMES" glib:nick="no-glyph-names" glib:name="HB_BUFFER_SERIALIZE_FLAG_NO_GLYPH_NAMES">
        <doc xml:space="preserve">do no serialize glyph name.</doc>
      </member>
      <member name="glyph_extents" value="8" c:identifier="HB_BUFFER_SERIALIZE_FLAG_GLYPH_EXTENTS" glib:nick="glyph-extents" glib:name="HB_BUFFER_SERIALIZE_FLAG_GLYPH_EXTENTS">
        <doc xml:space="preserve">serialize glyph extents.</doc>
      </member>
      <member name="glyph_flags" value="16" c:identifier="HB_BUFFER_SERIALIZE_FLAG_GLYPH_FLAGS" glib:nick="glyph-flags" glib:name="HB_BUFFER_SERIALIZE_FLAG_GLYPH_FLAGS">
        <doc xml:space="preserve">serialize glyph flags. Since: 1.5.0</doc>
      </member>
      <member name="no_advances" value="32" c:identifier="HB_BUFFER_SERIALIZE_FLAG_NO_ADVANCES" glib:nick="no-advances" glib:name="HB_BUFFER_SERIALIZE_FLAG_NO_ADVANCES">
        <doc xml:space="preserve">do not serialize glyph advances,
 glyph offsets will reflect absolute glyph positions. Since: 1.8.0</doc>
      </member>
    </bitfield>
    <function name="buffer_serialize_format_from_string" c:identifier="hb_buffer_serialize_format_from_string" version="0.9.7">
      <doc xml:space="preserve">Parses a string into an #hb_buffer_serialize_format_t. Does not check if
@str is a valid buffer serialization format, use
hb_buffer_serialize_list_formats() to get the list of supported formats.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">The parsed #hb_buffer_serialize_format_t.</doc>
        <type name="buffer_serialize_format_t" c:type="hb_buffer_serialize_format_t"/>
      </return-value>
      <parameters>
        <parameter name="str" transfer-ownership="none">
          <doc xml:space="preserve">a string to parse</doc>
          <array length="1" zero-terminated="0" c:type="const char*">
            <type name="guint8"/>
          </array>
        </parameter>
        <parameter name="len" transfer-ownership="none">
          <doc xml:space="preserve">length of @str, or -1 if string is %NULL terminated</doc>
          <type name="gint" c:type="int"/>
        </parameter>
      </parameters>
    </function>
    <enumeration name="buffer_serialize_format_t" version="0.9.2" glib:type-name="hb_buffer_serialize_format_t" glib:get-type="hb_gobject_buffer_serialize_format_get_type" c:type="hb_buffer_serialize_format_t">
      <doc xml:space="preserve">The buffer serialization and de-serialization format used in
hb_buffer_serialize_glyphs() and hb_buffer_deserialize_glyphs().</doc>
      <member name="text" value="1413830740" c:identifier="HB_BUFFER_SERIALIZE_FORMAT_TEXT" glib:nick="text" glib:name="HB_BUFFER_SERIALIZE_FORMAT_TEXT">
        <doc xml:space="preserve">a human-readable, plain text format.</doc>
      </member>
      <member name="json" value="1246973774" c:identifier="HB_BUFFER_SERIALIZE_FORMAT_JSON" glib:nick="json" glib:name="HB_BUFFER_SERIALIZE_FORMAT_JSON">
        <doc xml:space="preserve">a machine-readable JSON format.</doc>
      </member>
      <member name="invalid" value="0" c:identifier="HB_BUFFER_SERIALIZE_FORMAT_INVALID" glib:nick="invalid" glib:name="HB_BUFFER_SERIALIZE_FORMAT_INVALID">
        <doc xml:space="preserve">invalid format.</doc>
      </member>
    </enumeration>
    <function name="buffer_serialize_format_to_string" c:identifier="hb_buffer_serialize_format_to_string" version="0.9.7">
      <doc xml:space="preserve">Converts @format to the string corresponding it, or %NULL if it is not a valid
#hb_buffer_serialize_format_t.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">
A %NULL terminated string corresponding to @format. Should not be freed.</doc>
        <type name="utf8" c:type="const char*"/>
      </return-value>
      <parameters>
        <parameter name="format" transfer-ownership="none">
          <doc xml:space="preserve">an #hb_buffer_serialize_format_t to convert.</doc>
          <type name="buffer_serialize_format_t" c:type="hb_buffer_serialize_format_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="buffer_serialize_glyphs" c:identifier="hb_buffer_serialize_glyphs" version="0.9.7">
      <doc xml:space="preserve">Serializes @buffer into a textual representation of its glyph content,
useful for showing the contents of the buffer, for example during debugging.
There are currently two supported serialization formats:

## text
A human-readable, plain text format.
The serialized glyphs will look something like:

```
[uni0651=0@518,0+0|uni0628=0+1897]
```

- The serialized glyphs are delimited with `[` and `]`.
- Glyphs are separated with `|`
- Each glyph starts with glyph name, or glyph index if
  #HB_BUFFER_SERIALIZE_FLAG_NO_GLYPH_NAMES flag is set. Then,
  - If #HB_BUFFER_SERIALIZE_FLAG_NO_CLUSTERS is not set, `=` then #hb_glyph_info_t.cluster.
  - If #HB_BUFFER_SERIALIZE_FLAG_NO_POSITIONS is not set, the #hb_glyph_position_t in the format:
    - If both #hb_glyph_position_t.x_offset and #hb_glyph_position_t.y_offset are not 0, `@x_offset,y_offset`. Then,
    - `+x_advance`, then `,y_advance` if #hb_glyph_position_t.y_advance is not 0. Then,
  - If #HB_BUFFER_SERIALIZE_FLAG_GLYPH_EXTENTS is set, the #hb_glyph_extents_t in the format `&lt;x_bearing,y_bearing,width,height&gt;`

## json
A machine-readable, structured format.
The serialized glyphs will look something like:

```
[{"g":"uni0651","cl":0,"dx":518,"dy":0,"ax":0,"ay":0},
{"g":"uni0628","cl":0,"dx":0,"dy":0,"ax":1897,"ay":0}]
```

Each glyph is a JSON object, with the following properties:
- `g`: the glyph name or glyph index if
  #HB_BUFFER_SERIALIZE_FLAG_NO_GLYPH_NAMES flag is set.
- `cl`: #hb_glyph_info_t.cluster if
  #HB_BUFFER_SERIALIZE_FLAG_NO_CLUSTERS is not set.
- `dx`,`dy`,`ax`,`ay`: #hb_glyph_position_t.x_offset, #hb_glyph_position_t.y_offset,
   #hb_glyph_position_t.x_advance and #hb_glyph_position_t.y_advance
   respectively, if #HB_BUFFER_SERIALIZE_FLAG_NO_POSITIONS is not set.
- `xb`,`yb`,`w`,`h`: #hb_glyph_extents_t.x_bearing, #hb_glyph_extents_t.y_bearing,
   #hb_glyph_extents_t.width and #hb_glyph_extents_t.height respectively if
   #HB_BUFFER_SERIALIZE_FLAG_GLYPH_EXTENTS is set.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">The number of serialized items.</doc>
        <type name="guint" c:type="unsigned int"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">an #hb_buffer_t buffer.</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
        <parameter name="start" transfer-ownership="none">
          <doc xml:space="preserve">the first item in @buffer to serialize.</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="end" transfer-ownership="none">
          <doc xml:space="preserve">the last item in @buffer to serialize.</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="buf" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">output string to
      write serialized buffer into.</doc>
          <array length="4" zero-terminated="0" c:type="char*">
            <type name="guint8"/>
          </array>
        </parameter>
        <parameter name="buf_size" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">the size of @buf.</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="buf_consumed" direction="out" caller-allocates="0" transfer-ownership="full" optional="1" allow-none="1">
          <doc xml:space="preserve">if not %NULL, will be set to the number of byes written into @buf.</doc>
          <type name="guint" c:type="unsigned int*"/>
        </parameter>
        <parameter name="font" transfer-ownership="none" nullable="1" allow-none="1">
          <doc xml:space="preserve">the #hb_font_t used to shape this buffer, needed to
       read glyph names and extents. If %NULL, and empty font will be used.</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="format" transfer-ownership="none">
          <doc xml:space="preserve">the #hb_buffer_serialize_format_t to use for formatting the output.</doc>
          <type name="buffer_serialize_format_t" c:type="hb_buffer_serialize_format_t"/>
        </parameter>
        <parameter name="flags" transfer-ownership="none">
          <doc xml:space="preserve">the #hb_buffer_serialize_flags_t that control what glyph properties
        to serialize.</doc>
          <type name="buffer_serialize_flags_t" c:type="hb_buffer_serialize_flags_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="buffer_serialize_list_formats" c:identifier="hb_buffer_serialize_list_formats" version="0.9.7">
      <doc xml:space="preserve">Returns a list of supported buffer serialization formats.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">
A string array of buffer serialization formats. Should not be freed.</doc>
        <array c:type="const char**">
          <type name="utf8"/>
        </array>
      </return-value>
    </function>
    <function name="buffer_serialize_unicode" c:identifier="hb_buffer_serialize_unicode" version="2.7.3">
      <doc xml:space="preserve">Serializes @buffer into a textual representation of its content,
when the buffer contains Unicode codepoints (i.e., before shaping). This is
useful for showing the contents of the buffer, for example during debugging.
There are currently two supported serialization formats:

## text
A human-readable, plain text format.
The serialized codepoints will look something like:

```
&#xA0;&lt;U+0651=0|U+0628=1&gt;
```

- Glyphs are separated with `|`
- Unicode codepoints are expressed as zero-padded four (or more)
  digit hexadecimal numbers preceded by `U+`
- If #HB_BUFFER_SERIALIZE_FLAG_NO_CLUSTERS is not set, the cluster
  will be indicated with a `=` then #hb_glyph_info_t.cluster.

## json
A machine-readable, structured format.
The serialized codepoints will be a list of objects with the following
properties:
- `u`: the Unicode codepoint as a decimal integer
- `cl`: #hb_glyph_info_t.cluster if
  #HB_BUFFER_SERIALIZE_FLAG_NO_CLUSTERS is not set.

For example:

```
[{u:1617,cl:0},{u:1576,cl:1}]
```</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">The number of serialized items.</doc>
        <type name="guint" c:type="unsigned int"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">an #hb_buffer_t buffer.</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
        <parameter name="start" transfer-ownership="none">
          <doc xml:space="preserve">the first item in @buffer to serialize.</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="end" transfer-ownership="none">
          <doc xml:space="preserve">the last item in @buffer to serialize.</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="buf" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">output string to
      write serialized buffer into.</doc>
          <array length="4" zero-terminated="0" c:type="char*">
            <type name="guint8"/>
          </array>
        </parameter>
        <parameter name="buf_size" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">the size of @buf.</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="buf_consumed" direction="out" caller-allocates="0" transfer-ownership="full" optional="1" allow-none="1">
          <doc xml:space="preserve">if not %NULL, will be set to the number of byes written into @buf.</doc>
          <type name="guint" c:type="unsigned int*"/>
        </parameter>
        <parameter name="format" transfer-ownership="none">
          <doc xml:space="preserve">the #hb_buffer_serialize_format_t to use for formatting the output.</doc>
          <type name="buffer_serialize_format_t" c:type="hb_buffer_serialize_format_t"/>
        </parameter>
        <parameter name="flags" transfer-ownership="none">
          <type name="buffer_serialize_flags_t" c:type="hb_buffer_serialize_flags_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="buffer_set_cluster_level" c:identifier="hb_buffer_set_cluster_level" version="0.9.42">
      <doc xml:space="preserve">Sets the cluster level of a buffer. The #hb_buffer_cluster_level_t
dictates one aspect of how HarfBuzz will treat non-base characters
during shaping.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">An #hb_buffer_t</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
        <parameter name="cluster_level" transfer-ownership="none">
          <doc xml:space="preserve">The cluster level to set on the buffer</doc>
          <type name="buffer_cluster_level_t" c:type="hb_buffer_cluster_level_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="buffer_set_content_type" c:identifier="hb_buffer_set_content_type" version="0.9.5">
      <doc xml:space="preserve">Sets the type of @buffer contents. Buffers are either empty, contain
characters (before shaping), or contain glyphs (the result of shaping).</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">An #hb_buffer_t</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
        <parameter name="content_type" transfer-ownership="none">
          <doc xml:space="preserve">The type of buffer contents to set</doc>
          <type name="buffer_content_type_t" c:type="hb_buffer_content_type_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="buffer_set_direction" c:identifier="hb_buffer_set_direction" version="0.9.2">
      <doc xml:space="preserve">Set the text flow direction of the buffer. No shaping can happen without
setting @buffer direction, and it controls the visual direction for the
output glyphs; for RTL direction the glyphs will be reversed. Many layout
features depend on the proper setting of the direction, for example,
reversing RTL text before shaping, then shaping with LTR direction is not
the same as keeping the text in logical order and shaping with RTL
direction.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">An #hb_buffer_t</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
        <parameter name="direction" transfer-ownership="none">
          <doc xml:space="preserve">the #hb_direction_t of the @buffer</doc>
          <type name="direction_t" c:type="hb_direction_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="buffer_set_flags" c:identifier="hb_buffer_set_flags" version="0.9.7">
      <doc xml:space="preserve">Sets @buffer flags to @flags. See #hb_buffer_flags_t.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">An #hb_buffer_t</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
        <parameter name="flags" transfer-ownership="none">
          <doc xml:space="preserve">The buffer flags to set</doc>
          <type name="buffer_flags_t" c:type="hb_buffer_flags_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="buffer_set_invisible_glyph" c:identifier="hb_buffer_set_invisible_glyph" version="2.0.0">
      <doc xml:space="preserve">Sets the #hb_codepoint_t that replaces invisible characters in
the shaping result.  If set to zero (default), the glyph for the
U+0020 SPACE character is used.  Otherwise, this value is used
verbatim.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">An #hb_buffer_t</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
        <parameter name="invisible" transfer-ownership="none">
          <doc xml:space="preserve">the invisible #hb_codepoint_t</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="buffer_set_language" c:identifier="hb_buffer_set_language" version="0.9.2">
      <doc xml:space="preserve">Sets the language of @buffer to @language.

Languages are crucial for selecting which OpenType feature to apply to the
buffer which can result in applying language-specific behaviour. Languages
are orthogonal to the scripts, and though they are related, they are
different concepts and should not be confused with each other.

Use hb_language_from_string() to convert from BCP 47 language tags to
#hb_language_t.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">An #hb_buffer_t</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
        <parameter name="language" transfer-ownership="none">
          <doc xml:space="preserve">An hb_language_t to set</doc>
          <type name="language_t" c:type="hb_language_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="buffer_set_length" c:identifier="hb_buffer_set_length" version="0.9.2">
      <doc xml:space="preserve">Similar to hb_buffer_pre_allocate(), but clears any new items added at the
end.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%true if @buffer memory allocation succeeded, %false otherwise.</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">An #hb_buffer_t</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
        <parameter name="length" transfer-ownership="none">
          <doc xml:space="preserve">The new length of @buffer</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
      </parameters>
    </function>
    <function name="buffer_set_message_func" c:identifier="hb_buffer_set_message_func" version="1.1.3">
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">An #hb_buffer_t</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
        <parameter name="func" transfer-ownership="none" scope="notified" closure="2" destroy="3">
          <type name="buffer_message_func_t" c:type="hb_buffer_message_func_t"/>
        </parameter>
        <parameter name="user_data" transfer-ownership="none" nullable="1" allow-none="1">
          <type name="gpointer" c:type="void*"/>
        </parameter>
        <parameter name="destroy" transfer-ownership="none" scope="notified">
          <type name="destroy_func_t" c:type="hb_destroy_func_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="buffer_set_replacement_codepoint" c:identifier="hb_buffer_set_replacement_codepoint" version="0.9.31">
      <doc xml:space="preserve">Sets the #hb_codepoint_t that replaces invalid entries for a given encoding
when adding text to @buffer.

Default is %HB_BUFFER_REPLACEMENT_CODEPOINT_DEFAULT.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">An #hb_buffer_t</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
        <parameter name="replacement" transfer-ownership="none">
          <doc xml:space="preserve">the replacement #hb_codepoint_t</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="buffer_set_script" c:identifier="hb_buffer_set_script" version="0.9.2">
      <doc xml:space="preserve">Sets the script of @buffer to @script.

Script is crucial for choosing the proper shaping behaviour for scripts that
require it (e.g. Arabic) and the which OpenType features defined in the font
to be applied.

You can pass one of the predefined #hb_script_t values, or use
hb_script_from_string() or hb_script_from_iso15924_tag() to get the
corresponding script from an ISO 15924 script tag.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">An #hb_buffer_t</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
        <parameter name="script" transfer-ownership="none">
          <doc xml:space="preserve">An #hb_script_t to set.</doc>
          <type name="script_t" c:type="hb_script_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="buffer_set_segment_properties" c:identifier="hb_buffer_set_segment_properties" version="0.9.7">
      <doc xml:space="preserve">Sets the segment properties of the buffer, a shortcut for calling
hb_buffer_set_direction(), hb_buffer_set_script() and
hb_buffer_set_language() individually.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">An #hb_buffer_t</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
        <parameter name="props" transfer-ownership="none">
          <doc xml:space="preserve">An #hb_segment_properties_t to use</doc>
          <type name="segment_properties_t" c:type="const hb_segment_properties_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="buffer_set_unicode_funcs" c:identifier="hb_buffer_set_unicode_funcs" version="0.9.2">
      <doc xml:space="preserve">Sets the Unicode-functions structure of a buffer to
@unicode_funcs.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">An #hb_buffer_t</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
        <parameter name="unicode_funcs" transfer-ownership="none">
          <doc xml:space="preserve">The Unicode-functions structure</doc>
          <type name="unicode_funcs_t" c:type="hb_unicode_funcs_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="buffer_set_user_data" c:identifier="hb_buffer_set_user_data" version="0.9.2" introspectable="0">
      <doc xml:space="preserve">Attaches a user-data key/data pair to the specified buffer.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%true if success, %false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">An #hb_buffer_t</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
        <parameter name="key" transfer-ownership="none">
          <doc xml:space="preserve">The user-data key</doc>
          <type name="user_data_key_t" c:type="hb_user_data_key_t*"/>
        </parameter>
        <parameter name="data" transfer-ownership="none" nullable="1" allow-none="1">
          <doc xml:space="preserve">A pointer to the user data</doc>
          <type name="gpointer" c:type="void*"/>
        </parameter>
        <parameter name="destroy" transfer-ownership="none">
          <doc xml:space="preserve">A callback to call when @data is not needed anymore</doc>
          <type name="destroy_func_t" c:type="hb_destroy_func_t"/>
        </parameter>
        <parameter name="replace" transfer-ownership="none">
          <doc xml:space="preserve">Whether to replace an existing data with the same key</doc>
          <type name="bool_t" c:type="hb_bool_t"/>
        </parameter>
      </parameters>
    </function>
    <record name="buffer_t" c:type="hb_buffer_t" glib:type-name="hb_buffer_t" glib:get-type="hb_gobject_buffer_get_type" c:symbol-prefix="gobject_buffer">
      <doc xml:space="preserve">The main structure holding the input text and its properties before shaping,
and output glyphs and their information after shaping.</doc>
    </record>
    <function name="color_get_alpha" c:identifier="hb_color_get_alpha" version="2.1.0">
      <doc xml:space="preserve">color: a #hb_color_t we are interested in its channels.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">Alpha channel value of the given color</doc>
        <type name="guint8" c:type="uint8_t"/>
      </return-value>
      <parameters>
        <parameter name="color" transfer-ownership="none">
          <type name="color_t" c:type="hb_color_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="color_get_blue" c:identifier="hb_color_get_blue" version="2.1.0">
      <doc xml:space="preserve">color: a #hb_color_t we are interested in its channels.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">Blue channel value of the given color</doc>
        <type name="guint8" c:type="uint8_t"/>
      </return-value>
      <parameters>
        <parameter name="color" transfer-ownership="none">
          <type name="color_t" c:type="hb_color_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="color_get_green" c:identifier="hb_color_get_green" version="2.1.0">
      <doc xml:space="preserve">color: a #hb_color_t we are interested in its channels.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">Green channel value of the given color</doc>
        <type name="guint8" c:type="uint8_t"/>
      </return-value>
      <parameters>
        <parameter name="color" transfer-ownership="none">
          <type name="color_t" c:type="hb_color_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="color_get_red" c:identifier="hb_color_get_red" version="2.1.0">
      <doc xml:space="preserve">color: a #hb_color_t we are interested in its channels.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">Red channel value of the given color</doc>
        <type name="guint8" c:type="uint8_t"/>
      </return-value>
      <parameters>
        <parameter name="color" transfer-ownership="none">
          <type name="color_t" c:type="hb_color_t"/>
        </parameter>
      </parameters>
    </function>
    <callback name="destroy_func_t" c:type="hb_destroy_func_t">
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="user_data" transfer-ownership="none" nullable="1" allow-none="1" closure="0">
          <type name="gpointer" c:type="void*"/>
        </parameter>
      </parameters>
    </callback>
    <function name="direction_from_string" c:identifier="hb_direction_from_string" version="0.9.2">
      <doc xml:space="preserve">Converts a string to an #hb_direction_t.

Matching is loose and applies only to the first letter. For
examples, "LTR" and "left-to-right" will both return #HB_DIRECTION_LTR.

Unmatched strings will return #HB_DIRECTION_INVALID.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">The #hb_direction_t matching @str</doc>
        <type name="direction_t" c:type="hb_direction_t"/>
      </return-value>
      <parameters>
        <parameter name="str" transfer-ownership="none">
          <doc xml:space="preserve">String to convert</doc>
          <array length="1" zero-terminated="0" c:type="const char*">
            <type name="guint8"/>
          </array>
        </parameter>
        <parameter name="len" transfer-ownership="none">
          <doc xml:space="preserve">Length of @str, or -1 if it is %NULL-terminated</doc>
          <type name="gint" c:type="int"/>
        </parameter>
      </parameters>
    </function>
    <enumeration name="direction_t" glib:type-name="hb_direction_t" glib:get-type="hb_gobject_direction_get_type" c:type="hb_direction_t">
      <doc xml:space="preserve">The direction of a text segment or buffer.

A segment can also be tested for horizontal or vertical
orientation (irrespective of specific direction) with
HB_DIRECTION_IS_HORIZONTAL() or HB_DIRECTION_IS_VERTICAL().</doc>
      <member name="invalid" value="0" c:identifier="HB_DIRECTION_INVALID" glib:nick="invalid" glib:name="HB_DIRECTION_INVALID">
        <doc xml:space="preserve">Initial, unset direction.</doc>
      </member>
      <member name="ltr" value="4" c:identifier="HB_DIRECTION_LTR" glib:nick="ltr" glib:name="HB_DIRECTION_LTR">
        <doc xml:space="preserve">Text is set horizontally from left to right.</doc>
      </member>
      <member name="rtl" value="5" c:identifier="HB_DIRECTION_RTL" glib:nick="rtl" glib:name="HB_DIRECTION_RTL">
        <doc xml:space="preserve">Text is set horizontally from right to left.</doc>
      </member>
      <member name="ttb" value="6" c:identifier="HB_DIRECTION_TTB" glib:nick="ttb" glib:name="HB_DIRECTION_TTB">
        <doc xml:space="preserve">Text is set vertically from top to bottom.</doc>
      </member>
      <member name="btt" value="7" c:identifier="HB_DIRECTION_BTT" glib:nick="btt" glib:name="HB_DIRECTION_BTT">
        <doc xml:space="preserve">Text is set vertically from bottom to top.</doc>
      </member>
    </enumeration>
    <function name="direction_to_string" c:identifier="hb_direction_to_string" version="0.9.2">
      <doc xml:space="preserve">Converts an #hb_direction_t to a string.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">The string corresponding to @direction</doc>
        <type name="utf8" c:type="const char*"/>
      </return-value>
      <parameters>
        <parameter name="direction" transfer-ownership="none">
          <doc xml:space="preserve">The #hb_direction_t to convert</doc>
          <type name="direction_t" c:type="hb_direction_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="face_builder_add_table" c:identifier="hb_face_builder_add_table" version="1.9.0">
      <doc xml:space="preserve">Add table for @tag with data provided by @blob to the face.  @face must
be created using hb_face_builder_create().</doc>
      <return-value transfer-ownership="none">
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">A face object created with hb_face_builder_create()</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="tag" transfer-ownership="none">
          <doc xml:space="preserve">The #hb_tag_t of the table to add</doc>
          <type name="tag_t" c:type="hb_tag_t"/>
        </parameter>
        <parameter name="blob" transfer-ownership="none">
          <doc xml:space="preserve">The blob containing the table data to add</doc>
          <type name="blob_t" c:type="hb_blob_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="face_builder_create" c:identifier="hb_face_builder_create" version="1.9.0">
      <doc xml:space="preserve">Creates a #hb_face_t that can be used with hb_face_builder_add_table().
After tables are added to the face, it can be compiled to a binary
font file by calling hb_face_reference_blob().</doc>
      <return-value transfer-ownership="full">
        <doc xml:space="preserve">New face.</doc>
        <type name="face_t" c:type="hb_face_t*"/>
      </return-value>
    </function>
    <function name="face_collect_unicodes" c:identifier="hb_face_collect_unicodes" version="1.9.0">
      <doc xml:space="preserve">Collects all of the Unicode characters covered by @face and adds
them to the #hb_set_t set @out.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">A face object</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="out" transfer-ownership="none">
          <doc xml:space="preserve">The set to add Unicode characters to</doc>
          <type name="set_t" c:type="hb_set_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="face_collect_variation_selectors" c:identifier="hb_face_collect_variation_selectors" version="1.9.0">
      <doc xml:space="preserve">Collects all Unicode "Variation Selector" characters covered by @face and adds
them to the #hb_set_t set @out.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">A face object</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="out" transfer-ownership="none">
          <doc xml:space="preserve">The set to add Variation Selector characters to</doc>
          <type name="set_t" c:type="hb_set_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="face_collect_variation_unicodes" c:identifier="hb_face_collect_variation_unicodes" version="1.9.0">
      <doc xml:space="preserve">Collects all Unicode characters for @variation_selector covered by @face and adds
them to the #hb_set_t set @out.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">A face object</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="variation_selector" transfer-ownership="none">
          <doc xml:space="preserve">The Variation Selector to query</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="out" transfer-ownership="none">
          <doc xml:space="preserve">The set to add Unicode characters to</doc>
          <type name="set_t" c:type="hb_set_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="face_count" c:identifier="hb_face_count" version="1.7.7">
      <doc xml:space="preserve">Fetches the number of faces in a blob.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">Number of faces in @blob</doc>
        <type name="guint" c:type="unsigned int"/>
      </return-value>
      <parameters>
        <parameter name="blob" transfer-ownership="none">
          <doc xml:space="preserve">a blob.</doc>
          <type name="blob_t" c:type="hb_blob_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="face_create" c:identifier="hb_face_create" version="0.9.2">
      <doc xml:space="preserve">Constructs a new face object from the specified blob and
a face index into that blob. This is used for blobs of
file formats such as Dfont and TTC that can contain more
than one face.</doc>
      <return-value transfer-ownership="full">
        <doc xml:space="preserve">The new face object</doc>
        <type name="face_t" c:type="hb_face_t*"/>
      </return-value>
      <parameters>
        <parameter name="blob" transfer-ownership="none">
          <doc xml:space="preserve">#hb_blob_t to work upon</doc>
          <type name="blob_t" c:type="hb_blob_t*"/>
        </parameter>
        <parameter name="index" transfer-ownership="none">
          <doc xml:space="preserve">The index of the face within @blob</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
      </parameters>
    </function>
    <function name="face_create_for_tables" c:identifier="hb_face_create_for_tables" version="0.9.2">
      <doc xml:space="preserve">Variant of hb_face_create(), built for those cases where it is more
convenient to provide data for individual tables instead of the whole font
data. With the caveat that hb_face_get_table_tags() does not currently work
with faces created this way.

Creates a new face object from the specified @user_data and @reference_table_func,
with the @destroy callback.</doc>
      <return-value transfer-ownership="full">
        <doc xml:space="preserve">The new face object</doc>
        <type name="face_t" c:type="hb_face_t*"/>
      </return-value>
      <parameters>
        <parameter name="reference_table_func" transfer-ownership="none" scope="notified" closure="1" destroy="2">
          <doc xml:space="preserve">Table-referencing function</doc>
          <type name="reference_table_func_t" c:type="hb_reference_table_func_t"/>
        </parameter>
        <parameter name="user_data" transfer-ownership="none" nullable="1" allow-none="1">
          <doc xml:space="preserve">A pointer to the user data</doc>
          <type name="gpointer" c:type="void*"/>
        </parameter>
        <parameter name="destroy" transfer-ownership="none" scope="notified">
          <doc xml:space="preserve">A callback to call when @data is not needed anymore</doc>
          <type name="destroy_func_t" c:type="hb_destroy_func_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="face_destroy" c:identifier="hb_face_destroy" version="0.9.2" introspectable="0">
      <doc xml:space="preserve">Decreases the reference count on a face object. When the
reference count reaches zero, the face is destroyed,
freeing all memory.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">A face object</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="face_get_empty" c:identifier="hb_face_get_empty" version="0.9.2">
      <doc xml:space="preserve">Fetches the singleton empty face object.</doc>
      <return-value transfer-ownership="full">
        <doc xml:space="preserve">The empty face object</doc>
        <type name="face_t" c:type="hb_face_t*"/>
      </return-value>
    </function>
    <function name="face_get_glyph_count" c:identifier="hb_face_get_glyph_count" version="0.9.7">
      <doc xml:space="preserve">Fetches the glyph-count value of the specified face object.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">The glyph-count value of @face</doc>
        <type name="guint" c:type="unsigned int"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">A face object</doc>
          <type name="face_t" c:type="const hb_face_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="face_get_index" c:identifier="hb_face_get_index" version="0.9.2">
      <doc xml:space="preserve">Fetches the face-index corresponding to the given face.

&lt;note&gt;Note: face indices within a collection are zero-based.&lt;/note&gt;</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">The index of @face.</doc>
        <type name="guint" c:type="unsigned int"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">A face object</doc>
          <type name="face_t" c:type="const hb_face_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="face_get_table_tags" c:identifier="hb_face_get_table_tags" version="1.6.0">
      <doc xml:space="preserve">Fetches a list of all table tags for a face, if possible. The list returned will
begin at the offset provided</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">Total number of tables, or zero if it is not possible to list</doc>
        <type name="guint" c:type="unsigned int"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">A face object</doc>
          <type name="face_t" c:type="const hb_face_t*"/>
        </parameter>
        <parameter name="start_offset" transfer-ownership="none">
          <doc xml:space="preserve">The index of first table tag to retrieve</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="table_count" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">Input = the maximum number of table tags to return;
               Output = the actual number of table tags returned (may be zero)</doc>
          <type name="guint" c:type="unsigned int*"/>
        </parameter>
        <parameter name="table_tags" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The array of table tags found</doc>
          <array length="2" zero-terminated="0" c:type="hb_tag_t*">
            <type name="tag_t" c:type="hb_tag_t"/>
          </array>
        </parameter>
      </parameters>
    </function>
    <function name="face_get_upem" c:identifier="hb_face_get_upem" version="0.9.2">
      <doc xml:space="preserve">Fetches the units-per-em (upem) value of the specified face object.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">The upem value of @face</doc>
        <type name="guint" c:type="unsigned int"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">A face object</doc>
          <type name="face_t" c:type="const hb_face_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="face_get_user_data" c:identifier="hb_face_get_user_data" version="0.9.2" introspectable="0">
      <doc xml:space="preserve">Fetches the user data associated with the specified key,
attached to the specified face object.</doc>
      <return-value transfer-ownership="none" nullable="1">
        <doc xml:space="preserve">A pointer to the user data</doc>
        <type name="gpointer" c:type="void*"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">A face object</doc>
          <type name="face_t" c:type="const hb_face_t*"/>
        </parameter>
        <parameter name="key" transfer-ownership="none">
          <doc xml:space="preserve">The user-data key to query</doc>
          <type name="user_data_key_t" c:type="hb_user_data_key_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="face_is_immutable" c:identifier="hb_face_is_immutable" version="0.9.2">
      <doc xml:space="preserve">Tests whether the given face object is immutable.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">True is @face is immutable, false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">A face object</doc>
          <type name="face_t" c:type="const hb_face_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="face_make_immutable" c:identifier="hb_face_make_immutable" version="0.9.2">
      <doc xml:space="preserve">Makes the given face object immutable.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">A face object</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="face_reference" c:identifier="hb_face_reference" version="0.9.2" introspectable="0">
      <doc xml:space="preserve">Increases the reference count on a face object.</doc>
      <return-value transfer-ownership="full">
        <doc xml:space="preserve">The @face object</doc>
        <type name="face_t" c:type="hb_face_t*"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">A face object</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="face_reference_blob" c:identifier="hb_face_reference_blob" version="0.9.2">
      <doc xml:space="preserve">Fetches a pointer to the binary blob that contains the
specified face. Returns an empty blob if referencing face data is not
possible.</doc>
      <return-value transfer-ownership="full">
        <doc xml:space="preserve">A pointer to the blob for @face</doc>
        <type name="blob_t" c:type="hb_blob_t*"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">A face object</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="face_reference_table" c:identifier="hb_face_reference_table" version="0.9.2">
      <doc xml:space="preserve">Fetches a reference to the specified table within
the specified face.</doc>
      <return-value transfer-ownership="full">
        <doc xml:space="preserve">A pointer to the @tag table within @face</doc>
        <type name="blob_t" c:type="hb_blob_t*"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">A face object</doc>
          <type name="face_t" c:type="const hb_face_t*"/>
        </parameter>
        <parameter name="tag" transfer-ownership="none">
          <doc xml:space="preserve">The #hb_tag_t of the table to query</doc>
          <type name="tag_t" c:type="hb_tag_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="face_set_glyph_count" c:identifier="hb_face_set_glyph_count" version="0.9.7">
      <doc xml:space="preserve">Sets the glyph count for a face object to the specified value.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">A face object</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="glyph_count" transfer-ownership="none">
          <doc xml:space="preserve">The glyph-count value to assign</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
      </parameters>
    </function>
    <function name="face_set_index" c:identifier="hb_face_set_index" version="0.9.2">
      <doc xml:space="preserve">Assigns the specified face-index to @face. Fails if the
face is immutable.

&lt;note&gt;Note: face indices within a collection are zero-based.&lt;/note&gt;</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">A face object</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="index" transfer-ownership="none">
          <doc xml:space="preserve">The index to assign</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
      </parameters>
    </function>
    <function name="face_set_upem" c:identifier="hb_face_set_upem" version="0.9.2">
      <doc xml:space="preserve">Sets the units-per-em (upem) for a face object to the specified value.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">A face object</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="upem" transfer-ownership="none">
          <doc xml:space="preserve">The units-per-em value to assign</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
      </parameters>
    </function>
    <function name="face_set_user_data" c:identifier="hb_face_set_user_data" version="0.9.2" introspectable="0">
      <doc xml:space="preserve">Attaches a user-data key/data pair to the given face object.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%true if success, %false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">A face object</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="key" transfer-ownership="none">
          <doc xml:space="preserve">The user-data key to set</doc>
          <type name="user_data_key_t" c:type="hb_user_data_key_t*"/>
        </parameter>
        <parameter name="data" transfer-ownership="none" nullable="1" allow-none="1">
          <doc xml:space="preserve">A pointer to the user data</doc>
          <type name="gpointer" c:type="void*"/>
        </parameter>
        <parameter name="destroy" transfer-ownership="none">
          <doc xml:space="preserve">A callback to call when @data is not needed anymore</doc>
          <type name="destroy_func_t" c:type="hb_destroy_func_t"/>
        </parameter>
        <parameter name="replace" transfer-ownership="none">
          <doc xml:space="preserve">Whether to replace an existing data with the same key</doc>
          <type name="bool_t" c:type="hb_bool_t"/>
        </parameter>
      </parameters>
    </function>
    <record name="face_t" c:type="hb_face_t" glib:type-name="hb_face_t" glib:get-type="hb_gobject_face_get_type" c:symbol-prefix="gobject_face">
      <doc xml:space="preserve">Data type for holding font faces.</doc>
    </record>
    <function name="feature_from_string" c:identifier="hb_feature_from_string" version="0.9.5">
      <doc xml:space="preserve">Parses a string into a #hb_feature_t.

The format for specifying feature strings follows. All valid CSS
font-feature-settings values other than 'normal' and the global values are
also accepted, though not documented below. CSS string escapes are not
supported.

The range indices refer to the positions between Unicode characters. The
position before the first character is always 0.

The format is Python-esque.  Here is how it all works:

&lt;informaltable pgwide='1' align='left' frame='none'&gt;
&lt;tgroup cols='5'&gt;
&lt;thead&gt;
&lt;row&gt;&lt;entry&gt;Syntax&lt;/entry&gt;    &lt;entry&gt;Value&lt;/entry&gt; &lt;entry&gt;Start&lt;/entry&gt; &lt;entry&gt;End&lt;/entry&gt;&lt;/row&gt;
&lt;/thead&gt;
&lt;tbody&gt;
&lt;row&gt;&lt;entry&gt;Setting value:&lt;/entry&gt;&lt;/row&gt;
&lt;row&gt;&lt;entry&gt;kern&lt;/entry&gt;      &lt;entry&gt;1&lt;/entry&gt;     &lt;entry&gt;0&lt;/entry&gt;      &lt;entry&gt;&#x221E;&lt;/entry&gt;   &lt;entry&gt;Turn feature on&lt;/entry&gt;&lt;/row&gt;
&lt;row&gt;&lt;entry&gt;+kern&lt;/entry&gt;     &lt;entry&gt;1&lt;/entry&gt;     &lt;entry&gt;0&lt;/entry&gt;      &lt;entry&gt;&#x221E;&lt;/entry&gt;   &lt;entry&gt;Turn feature on&lt;/entry&gt;&lt;/row&gt;
&lt;row&gt;&lt;entry&gt;-kern&lt;/entry&gt;     &lt;entry&gt;0&lt;/entry&gt;     &lt;entry&gt;0&lt;/entry&gt;      &lt;entry&gt;&#x221E;&lt;/entry&gt;   &lt;entry&gt;Turn feature off&lt;/entry&gt;&lt;/row&gt;
&lt;row&gt;&lt;entry&gt;kern=0&lt;/entry&gt;    &lt;entry&gt;0&lt;/entry&gt;     &lt;entry&gt;0&lt;/entry&gt;      &lt;entry&gt;&#x221E;&lt;/entry&gt;   &lt;entry&gt;Turn feature off&lt;/entry&gt;&lt;/row&gt;
&lt;row&gt;&lt;entry&gt;kern=1&lt;/entry&gt;    &lt;entry&gt;1&lt;/entry&gt;     &lt;entry&gt;0&lt;/entry&gt;      &lt;entry&gt;&#x221E;&lt;/entry&gt;   &lt;entry&gt;Turn feature on&lt;/entry&gt;&lt;/row&gt;
&lt;row&gt;&lt;entry&gt;aalt=2&lt;/entry&gt;    &lt;entry&gt;2&lt;/entry&gt;     &lt;entry&gt;0&lt;/entry&gt;      &lt;entry&gt;&#x221E;&lt;/entry&gt;   &lt;entry&gt;Choose 2nd alternate&lt;/entry&gt;&lt;/row&gt;
&lt;row&gt;&lt;entry&gt;Setting index:&lt;/entry&gt;&lt;/row&gt;
&lt;row&gt;&lt;entry&gt;kern[]&lt;/entry&gt;    &lt;entry&gt;1&lt;/entry&gt;     &lt;entry&gt;0&lt;/entry&gt;      &lt;entry&gt;&#x221E;&lt;/entry&gt;   &lt;entry&gt;Turn feature on&lt;/entry&gt;&lt;/row&gt;
&lt;row&gt;&lt;entry&gt;kern[:]&lt;/entry&gt;   &lt;entry&gt;1&lt;/entry&gt;     &lt;entry&gt;0&lt;/entry&gt;      &lt;entry&gt;&#x221E;&lt;/entry&gt;   &lt;entry&gt;Turn feature on&lt;/entry&gt;&lt;/row&gt;
&lt;row&gt;&lt;entry&gt;kern[5:]&lt;/entry&gt;  &lt;entry&gt;1&lt;/entry&gt;     &lt;entry&gt;5&lt;/entry&gt;      &lt;entry&gt;&#x221E;&lt;/entry&gt;   &lt;entry&gt;Turn feature on, partial&lt;/entry&gt;&lt;/row&gt;
&lt;row&gt;&lt;entry&gt;kern[:5]&lt;/entry&gt;  &lt;entry&gt;1&lt;/entry&gt;     &lt;entry&gt;0&lt;/entry&gt;      &lt;entry&gt;5&lt;/entry&gt;   &lt;entry&gt;Turn feature on, partial&lt;/entry&gt;&lt;/row&gt;
&lt;row&gt;&lt;entry&gt;kern[3:5]&lt;/entry&gt; &lt;entry&gt;1&lt;/entry&gt;     &lt;entry&gt;3&lt;/entry&gt;      &lt;entry&gt;5&lt;/entry&gt;   &lt;entry&gt;Turn feature on, range&lt;/entry&gt;&lt;/row&gt;
&lt;row&gt;&lt;entry&gt;kern[3]&lt;/entry&gt;   &lt;entry&gt;1&lt;/entry&gt;     &lt;entry&gt;3&lt;/entry&gt;      &lt;entry&gt;3+1&lt;/entry&gt; &lt;entry&gt;Turn feature on, single char&lt;/entry&gt;&lt;/row&gt;
&lt;row&gt;&lt;entry&gt;Mixing it all:&lt;/entry&gt;&lt;/row&gt;
&lt;row&gt;&lt;entry&gt;aalt[3:5]=2&lt;/entry&gt; &lt;entry&gt;2&lt;/entry&gt;   &lt;entry&gt;3&lt;/entry&gt;      &lt;entry&gt;5&lt;/entry&gt;   &lt;entry&gt;Turn 2nd alternate on for range&lt;/entry&gt;&lt;/row&gt;
&lt;/tbody&gt;
&lt;/tgroup&gt;
&lt;/informaltable&gt;</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%true if @str is successfully parsed, %false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="str" transfer-ownership="none">
          <doc xml:space="preserve">a string to parse</doc>
          <array length="1" zero-terminated="0" c:type="const char*">
            <type name="guint8"/>
          </array>
        </parameter>
        <parameter name="len" transfer-ownership="none">
          <doc xml:space="preserve">length of @str, or -1 if string is %NULL terminated</doc>
          <type name="gint" c:type="int"/>
        </parameter>
        <parameter name="feature" direction="out" caller-allocates="1" transfer-ownership="none">
          <doc xml:space="preserve">the #hb_feature_t to initialize with the parsed values</doc>
          <type name="feature_t" c:type="hb_feature_t*"/>
        </parameter>
      </parameters>
    </function>
    <record name="feature_t" c:type="hb_feature_t" glib:type-name="hb_feature_t" glib:get-type="hb_gobject_feature_get_type" c:symbol-prefix="gobject_feature">
      <doc xml:space="preserve">The #hb_feature_t is the structure that holds information about requested
feature application. The feature will be applied with the given value to all
glyphs which are in clusters between @start (inclusive) and @end (exclusive).
Setting start to @HB_FEATURE_GLOBAL_START and end to @HB_FEATURE_GLOBAL_END
specifies that the feature always applies to the entire buffer.</doc>
      <field name="tag" writable="1">
        <doc xml:space="preserve">The #hb_tag_t tag of the feature</doc>
        <type name="tag_t" c:type="hb_tag_t"/>
      </field>
      <field name="value" writable="1">
        <doc xml:space="preserve">The value of the feature. 0 disables the feature, non-zero (usually
1) enables the feature.  For features implemented as lookup type 3 (like
'salt') the @value is a one based index into the alternates.</doc>
        <type name="guint32" c:type="uint32_t"/>
      </field>
      <field name="start" writable="1">
        <doc xml:space="preserve">the cluster to start applying this feature setting (inclusive).</doc>
        <type name="guint" c:type="unsigned int"/>
      </field>
      <field name="end" writable="1">
        <doc xml:space="preserve">the cluster to end applying this feature setting (exclusive).</doc>
        <type name="guint" c:type="unsigned int"/>
      </field>
      <method name="_string" c:identifier="hb_feature_to_string" moved-to="feature_to_string" version="0.9.5">
        <doc xml:space="preserve">Converts a #hb_feature_t into a %NULL-terminated string in the format
understood by hb_feature_from_string(). The client in responsible for
allocating big enough size for @buf, 128 bytes is more than enough.</doc>
        <return-value transfer-ownership="none">
          <type name="none" c:type="void"/>
        </return-value>
        <parameters>
          <instance-parameter name="feature" transfer-ownership="none">
            <doc xml:space="preserve">an #hb_feature_t to convert</doc>
            <type name="feature_t" c:type="hb_feature_t*"/>
          </instance-parameter>
          <parameter name="buf" direction="out" caller-allocates="0" transfer-ownership="full">
            <doc xml:space="preserve">output string</doc>
            <array length="1" zero-terminated="0" c:type="char*">
              <type name="utf8" c:type="char"/>
            </array>
          </parameter>
          <parameter name="size" direction="out" caller-allocates="0" transfer-ownership="full">
            <doc xml:space="preserve">the allocated size of @buf</doc>
            <type name="guint" c:type="unsigned int"/>
          </parameter>
        </parameters>
      </method>
    </record>
    <function name="feature_to_string" c:identifier="hb_feature_to_string" version="0.9.5">
      <doc xml:space="preserve">Converts a #hb_feature_t into a %NULL-terminated string in the format
understood by hb_feature_from_string(). The client in responsible for
allocating big enough size for @buf, 128 bytes is more than enough.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="feature" transfer-ownership="none">
          <doc xml:space="preserve">an #hb_feature_t to convert</doc>
          <type name="feature_t" c:type="hb_feature_t*"/>
        </parameter>
        <parameter name="buf" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">output string</doc>
          <array length="2" zero-terminated="0" c:type="char*">
            <type name="utf8" c:type="char"/>
          </array>
        </parameter>
        <parameter name="size" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">the allocated size of @buf</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_add_glyph_origin_for_direction" c:identifier="hb_font_add_glyph_origin_for_direction" version="0.9.2">
      <doc xml:space="preserve">Adds the origin coordinates to an (X,Y) point coordinate, in
the specified glyph ID in the specified font.

Calls the appropriate direction-specific variant (horizontal
or vertical) depending on the value of @direction.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="glyph" transfer-ownership="none">
          <doc xml:space="preserve">The glyph ID to query</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="direction" transfer-ownership="none">
          <doc xml:space="preserve">The direction of the text segment</doc>
          <type name="direction_t" c:type="hb_direction_t"/>
        </parameter>
        <parameter name="x" direction="inout" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">Input = The original X coordinate
    Output = The X coordinate plus the X-coordinate of the origin</doc>
          <type name="position_t" c:type="hb_position_t*"/>
        </parameter>
        <parameter name="y" direction="inout" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">Input = The original Y coordinate
    Output = The Y coordinate plus the Y-coordinate of the origin</doc>
          <type name="position_t" c:type="hb_position_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_create" c:identifier="hb_font_create" version="0.9.2">
      <doc xml:space="preserve">Constructs a new font object from the specified face.</doc>
      <return-value transfer-ownership="full">
        <doc xml:space="preserve">The new font object</doc>
        <type name="font_t" c:type="hb_font_t*"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">a face.</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_create_sub_font" c:identifier="hb_font_create_sub_font" version="0.9.2">
      <doc xml:space="preserve">Constructs a sub-font font object from the specified @parent font,
replicating the parent's properties.</doc>
      <return-value transfer-ownership="full">
        <doc xml:space="preserve">The new sub-font font object</doc>
        <type name="font_t" c:type="hb_font_t*"/>
      </return-value>
      <parameters>
        <parameter name="parent" transfer-ownership="none">
          <doc xml:space="preserve">The parent font object</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_destroy" c:identifier="hb_font_destroy" version="0.9.2" introspectable="0">
      <doc xml:space="preserve">Decreases the reference count on the given font object. When the
reference count reaches zero, the font is destroyed,
freeing all memory.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
      </parameters>
    </function>
    <record name="font_extents_t" c:type="hb_font_extents_t">
      <doc xml:space="preserve">Font-wide extent values, measured in font units.

Note that typically @ascender is positive and @descender
negative, in coordinate systems that grow up.</doc>
      <field name="ascender" writable="1">
        <doc xml:space="preserve">The height of typographic ascenders.</doc>
        <type name="position_t" c:type="hb_position_t"/>
      </field>
      <field name="descender" writable="1">
        <doc xml:space="preserve">The depth of typographic descenders.</doc>
        <type name="position_t" c:type="hb_position_t"/>
      </field>
      <field name="line_gap" writable="1">
        <doc xml:space="preserve">The suggested line-spacing gap.</doc>
        <type name="position_t" c:type="hb_position_t"/>
      </field>
      <field name="reserved9" readable="0" private="1">
        <type name="position_t" c:type="hb_position_t"/>
      </field>
      <field name="reserved8" readable="0" private="1">
        <type name="position_t" c:type="hb_position_t"/>
      </field>
      <field name="reserved7" readable="0" private="1">
        <type name="position_t" c:type="hb_position_t"/>
      </field>
      <field name="reserved6" readable="0" private="1">
        <type name="position_t" c:type="hb_position_t"/>
      </field>
      <field name="reserved5" readable="0" private="1">
        <type name="position_t" c:type="hb_position_t"/>
      </field>
      <field name="reserved4" readable="0" private="1">
        <type name="position_t" c:type="hb_position_t"/>
      </field>
      <field name="reserved3" readable="0" private="1">
        <type name="position_t" c:type="hb_position_t"/>
      </field>
      <field name="reserved2" readable="0" private="1">
        <type name="position_t" c:type="hb_position_t"/>
      </field>
      <field name="reserved1" readable="0" private="1">
        <type name="position_t" c:type="hb_position_t"/>
      </field>
    </record>
    <function name="font_funcs_create" c:identifier="hb_font_funcs_create" version="0.9.2">
      <doc xml:space="preserve">Creates a new #hb_font_funcs_t structure of font functions.</doc>
      <return-value transfer-ownership="full">
        <doc xml:space="preserve">The font-functions structure</doc>
        <type name="font_funcs_t" c:type="hb_font_funcs_t*"/>
      </return-value>
    </function>
    <function name="font_funcs_destroy" c:identifier="hb_font_funcs_destroy" version="0.9.2" introspectable="0">
      <doc xml:space="preserve">Decreases the reference count on a font-functions structure. When
the reference count reaches zero, the font-functions structure is
destroyed, freeing all memory.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="ffuncs" transfer-ownership="none">
          <doc xml:space="preserve">The font-functions structure</doc>
          <type name="font_funcs_t" c:type="hb_font_funcs_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_funcs_get_empty" c:identifier="hb_font_funcs_get_empty" version="0.9.2">
      <doc xml:space="preserve">Fetches an empty font-functions structure.</doc>
      <return-value transfer-ownership="full">
        <doc xml:space="preserve">The font-functions structure</doc>
        <type name="font_funcs_t" c:type="hb_font_funcs_t*"/>
      </return-value>
    </function>
    <function name="font_funcs_get_user_data" c:identifier="hb_font_funcs_get_user_data" version="0.9.2" introspectable="0">
      <doc xml:space="preserve">Fetches the user data associated with the specified key,
attached to the specified font-functions structure.</doc>
      <return-value transfer-ownership="none" nullable="1">
        <doc xml:space="preserve">A pointer to the user data</doc>
        <type name="gpointer" c:type="void*"/>
      </return-value>
      <parameters>
        <parameter name="ffuncs" transfer-ownership="none">
          <doc xml:space="preserve">The font-functions structure</doc>
          <type name="font_funcs_t" c:type="hb_font_funcs_t*"/>
        </parameter>
        <parameter name="key" transfer-ownership="none">
          <doc xml:space="preserve">The user-data key to query</doc>
          <type name="user_data_key_t" c:type="hb_user_data_key_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_funcs_is_immutable" c:identifier="hb_font_funcs_is_immutable" version="0.9.2">
      <doc xml:space="preserve">Tests whether a font-functions structure is immutable.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%true if @ffuncs is immutable, false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="ffuncs" transfer-ownership="none">
          <doc xml:space="preserve">The font-functions structure</doc>
          <type name="font_funcs_t" c:type="hb_font_funcs_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_funcs_make_immutable" c:identifier="hb_font_funcs_make_immutable" version="0.9.2">
      <doc xml:space="preserve">Makes a font-functions structure immutable.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="ffuncs" transfer-ownership="none">
          <doc xml:space="preserve">The font-functions structure</doc>
          <type name="font_funcs_t" c:type="hb_font_funcs_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_funcs_reference" c:identifier="hb_font_funcs_reference" version="0.9.2" introspectable="0">
      <doc xml:space="preserve">Increases the reference count on a font-functions structure.</doc>
      <return-value transfer-ownership="full">
        <doc xml:space="preserve">The font-functions structure</doc>
        <type name="font_funcs_t" c:type="hb_font_funcs_t*"/>
      </return-value>
      <parameters>
        <parameter name="ffuncs" transfer-ownership="none">
          <doc xml:space="preserve">The font-functions structure</doc>
          <type name="font_funcs_t" c:type="hb_font_funcs_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_funcs_set_font_h_extents_func" c:identifier="hb_font_funcs_set_font_h_extents_func" version="1.1.2">
      <doc xml:space="preserve">Sets the implementation function for #hb_font_get_font_h_extents_func_t.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="ffuncs" transfer-ownership="none">
          <doc xml:space="preserve">A font-function structure</doc>
          <type name="font_funcs_t" c:type="hb_font_funcs_t*"/>
        </parameter>
        <parameter name="func" transfer-ownership="none" scope="notified" closure="2" destroy="3">
          <doc xml:space="preserve">The callback function to assign</doc>
          <type name="font_get_font_h_extents_func_t" c:type="hb_font_get_font_h_extents_func_t"/>
        </parameter>
        <parameter name="user_data" transfer-ownership="none" nullable="1" allow-none="1">
          <doc xml:space="preserve">Data to pass to @func</doc>
          <type name="gpointer" c:type="void*"/>
        </parameter>
        <parameter name="destroy" transfer-ownership="none" scope="notified">
          <doc xml:space="preserve">The function to call when @user_data is not needed anymore</doc>
          <type name="destroy_func_t" c:type="hb_destroy_func_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_funcs_set_font_v_extents_func" c:identifier="hb_font_funcs_set_font_v_extents_func" version="1.1.2">
      <doc xml:space="preserve">Sets the implementation function for #hb_font_get_font_v_extents_func_t.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="ffuncs" transfer-ownership="none">
          <doc xml:space="preserve">A font-function structure</doc>
          <type name="font_funcs_t" c:type="hb_font_funcs_t*"/>
        </parameter>
        <parameter name="func" transfer-ownership="none" scope="notified" closure="2" destroy="3">
          <doc xml:space="preserve">The callback function to assign</doc>
          <type name="font_get_font_v_extents_func_t" c:type="hb_font_get_font_v_extents_func_t"/>
        </parameter>
        <parameter name="user_data" transfer-ownership="none" nullable="1" allow-none="1">
          <doc xml:space="preserve">Data to pass to @func</doc>
          <type name="gpointer" c:type="void*"/>
        </parameter>
        <parameter name="destroy" transfer-ownership="none" scope="notified">
          <doc xml:space="preserve">The function to call when @user_data is not needed anymore</doc>
          <type name="destroy_func_t" c:type="hb_destroy_func_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_funcs_set_glyph_contour_point_func" c:identifier="hb_font_funcs_set_glyph_contour_point_func" version="0.9.2">
      <doc xml:space="preserve">Sets the implementation function for #hb_font_get_glyph_contour_point_func_t.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="ffuncs" transfer-ownership="none">
          <doc xml:space="preserve">A font-function structure</doc>
          <type name="font_funcs_t" c:type="hb_font_funcs_t*"/>
        </parameter>
        <parameter name="func" transfer-ownership="none" scope="notified" closure="2" destroy="3">
          <doc xml:space="preserve">The callback function to assign</doc>
          <type name="font_get_glyph_contour_point_func_t" c:type="hb_font_get_glyph_contour_point_func_t"/>
        </parameter>
        <parameter name="user_data" transfer-ownership="none" nullable="1" allow-none="1">
          <doc xml:space="preserve">Data to pass to @func</doc>
          <type name="gpointer" c:type="void*"/>
        </parameter>
        <parameter name="destroy" transfer-ownership="none" scope="notified">
          <doc xml:space="preserve">The function to call when @user_data is not needed anymore</doc>
          <type name="destroy_func_t" c:type="hb_destroy_func_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_funcs_set_glyph_extents_func" c:identifier="hb_font_funcs_set_glyph_extents_func" version="0.9.2">
      <doc xml:space="preserve">Sets the implementation function for #hb_font_get_glyph_extents_func_t.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="ffuncs" transfer-ownership="none">
          <doc xml:space="preserve">A font-function structure</doc>
          <type name="font_funcs_t" c:type="hb_font_funcs_t*"/>
        </parameter>
        <parameter name="func" transfer-ownership="none" scope="notified" closure="2" destroy="3">
          <doc xml:space="preserve">The callback function to assign</doc>
          <type name="font_get_glyph_extents_func_t" c:type="hb_font_get_glyph_extents_func_t"/>
        </parameter>
        <parameter name="user_data" transfer-ownership="none" nullable="1" allow-none="1">
          <doc xml:space="preserve">Data to pass to @func</doc>
          <type name="gpointer" c:type="void*"/>
        </parameter>
        <parameter name="destroy" transfer-ownership="none" scope="notified">
          <doc xml:space="preserve">The function to call when @user_data is not needed anymore</doc>
          <type name="destroy_func_t" c:type="hb_destroy_func_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_funcs_set_glyph_from_name_func" c:identifier="hb_font_funcs_set_glyph_from_name_func" version="0.9.2">
      <doc xml:space="preserve">Sets the implementation function for #hb_font_get_glyph_from_name_func_t.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="ffuncs" transfer-ownership="none">
          <doc xml:space="preserve">A font-function structure</doc>
          <type name="font_funcs_t" c:type="hb_font_funcs_t*"/>
        </parameter>
        <parameter name="func" transfer-ownership="none" scope="notified" closure="2" destroy="3">
          <doc xml:space="preserve">The callback function to assign</doc>
          <type name="font_get_glyph_from_name_func_t" c:type="hb_font_get_glyph_from_name_func_t"/>
        </parameter>
        <parameter name="user_data" transfer-ownership="none" nullable="1" allow-none="1">
          <doc xml:space="preserve">Data to pass to @func</doc>
          <type name="gpointer" c:type="void*"/>
        </parameter>
        <parameter name="destroy" transfer-ownership="none" scope="notified">
          <doc xml:space="preserve">The function to call when @user_data is not needed anymore</doc>
          <type name="destroy_func_t" c:type="hb_destroy_func_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_funcs_set_glyph_func" c:identifier="hb_font_funcs_set_glyph_func" version="0.9.2" deprecated="1" deprecated-version="1.2.3">
      <doc xml:space="preserve">Deprecated.  Use hb_font_funcs_set_nominal_glyph_func() and
hb_font_funcs_set_variation_glyph_func() instead.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="ffuncs" transfer-ownership="none">
          <doc xml:space="preserve">The font-functions structure</doc>
          <type name="font_funcs_t" c:type="hb_font_funcs_t*"/>
        </parameter>
        <parameter name="func" transfer-ownership="none" scope="notified" closure="2" destroy="3">
          <doc xml:space="preserve">callback function</doc>
          <type name="font_get_glyph_func_t" c:type="hb_font_get_glyph_func_t"/>
        </parameter>
        <parameter name="user_data" transfer-ownership="none" nullable="1" allow-none="1">
          <doc xml:space="preserve">data to pass to @func</doc>
          <type name="gpointer" c:type="void*"/>
        </parameter>
        <parameter name="destroy" transfer-ownership="none" scope="notified">
          <doc xml:space="preserve">function to call when @user_data is not needed anymore</doc>
          <type name="destroy_func_t" c:type="hb_destroy_func_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_funcs_set_glyph_h_advance_func" c:identifier="hb_font_funcs_set_glyph_h_advance_func" version="0.9.2">
      <doc xml:space="preserve">Sets the implementation function for #hb_font_get_glyph_h_advance_func_t.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="ffuncs" transfer-ownership="none">
          <doc xml:space="preserve">A font-function structure</doc>
          <type name="font_funcs_t" c:type="hb_font_funcs_t*"/>
        </parameter>
        <parameter name="func" transfer-ownership="none" scope="notified" closure="2" destroy="3">
          <doc xml:space="preserve">The callback function to assign</doc>
          <type name="font_get_glyph_h_advance_func_t" c:type="hb_font_get_glyph_h_advance_func_t"/>
        </parameter>
        <parameter name="user_data" transfer-ownership="none" nullable="1" allow-none="1">
          <doc xml:space="preserve">Data to pass to @func</doc>
          <type name="gpointer" c:type="void*"/>
        </parameter>
        <parameter name="destroy" transfer-ownership="none" scope="notified">
          <doc xml:space="preserve">The function to call when @user_data is not needed anymore</doc>
          <type name="destroy_func_t" c:type="hb_destroy_func_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_funcs_set_glyph_h_advances_func" c:identifier="hb_font_funcs_set_glyph_h_advances_func" version="1.8.6">
      <doc xml:space="preserve">Sets the implementation function for #hb_font_get_glyph_h_advances_func_t.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="ffuncs" transfer-ownership="none">
          <doc xml:space="preserve">A font-function structure</doc>
          <type name="font_funcs_t" c:type="hb_font_funcs_t*"/>
        </parameter>
        <parameter name="func" transfer-ownership="none" scope="notified" closure="2" destroy="3">
          <doc xml:space="preserve">The callback function to assign</doc>
          <type name="font_get_glyph_h_advances_func_t" c:type="hb_font_get_glyph_h_advances_func_t"/>
        </parameter>
        <parameter name="user_data" transfer-ownership="none" nullable="1" allow-none="1">
          <doc xml:space="preserve">Data to pass to @func</doc>
          <type name="gpointer" c:type="void*"/>
        </parameter>
        <parameter name="destroy" transfer-ownership="none" scope="notified">
          <doc xml:space="preserve">The function to call when @user_data is not needed anymore</doc>
          <type name="destroy_func_t" c:type="hb_destroy_func_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_funcs_set_glyph_h_kerning_func" c:identifier="hb_font_funcs_set_glyph_h_kerning_func" version="0.9.2">
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="ffuncs" transfer-ownership="none">
          <doc xml:space="preserve">font functions.</doc>
          <type name="font_funcs_t" c:type="hb_font_funcs_t*"/>
        </parameter>
        <parameter name="func" transfer-ownership="none" scope="notified" closure="2" destroy="3">
          <type name="font_get_glyph_h_kerning_func_t" c:type="hb_font_get_glyph_h_kerning_func_t"/>
        </parameter>
        <parameter name="user_data" transfer-ownership="none" nullable="1" allow-none="1">
          <type name="gpointer" c:type="void*"/>
        </parameter>
        <parameter name="destroy" transfer-ownership="none" scope="notified">
          <type name="destroy_func_t" c:type="hb_destroy_func_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_funcs_set_glyph_h_origin_func" c:identifier="hb_font_funcs_set_glyph_h_origin_func" version="0.9.2">
      <doc xml:space="preserve">Sets the implementation function for #hb_font_get_glyph_h_origin_func_t.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="ffuncs" transfer-ownership="none">
          <doc xml:space="preserve">A font-function structure</doc>
          <type name="font_funcs_t" c:type="hb_font_funcs_t*"/>
        </parameter>
        <parameter name="func" transfer-ownership="none" scope="notified" closure="2" destroy="3">
          <doc xml:space="preserve">The callback function to assign</doc>
          <type name="font_get_glyph_h_origin_func_t" c:type="hb_font_get_glyph_h_origin_func_t"/>
        </parameter>
        <parameter name="user_data" transfer-ownership="none" nullable="1" allow-none="1">
          <doc xml:space="preserve">Data to pass to @func</doc>
          <type name="gpointer" c:type="void*"/>
        </parameter>
        <parameter name="destroy" transfer-ownership="none" scope="notified">
          <doc xml:space="preserve">The function to call when @user_data is not needed anymore</doc>
          <type name="destroy_func_t" c:type="hb_destroy_func_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_funcs_set_glyph_name_func" c:identifier="hb_font_funcs_set_glyph_name_func" version="0.9.2">
      <doc xml:space="preserve">Sets the implementation function for #hb_font_get_glyph_name_func_t.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="ffuncs" transfer-ownership="none">
          <doc xml:space="preserve">A font-function structure</doc>
          <type name="font_funcs_t" c:type="hb_font_funcs_t*"/>
        </parameter>
        <parameter name="func" transfer-ownership="none" scope="notified" closure="2" destroy="3">
          <doc xml:space="preserve">The callback function to assign</doc>
          <type name="font_get_glyph_name_func_t" c:type="hb_font_get_glyph_name_func_t"/>
        </parameter>
        <parameter name="user_data" transfer-ownership="none" nullable="1" allow-none="1">
          <doc xml:space="preserve">Data to pass to @func</doc>
          <type name="gpointer" c:type="void*"/>
        </parameter>
        <parameter name="destroy" transfer-ownership="none" scope="notified">
          <doc xml:space="preserve">The function to call when @user_data is not needed anymore</doc>
          <type name="destroy_func_t" c:type="hb_destroy_func_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_funcs_set_glyph_v_advance_func" c:identifier="hb_font_funcs_set_glyph_v_advance_func" version="0.9.2">
      <doc xml:space="preserve">Sets the implementation function for #hb_font_get_glyph_v_advance_func_t.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="ffuncs" transfer-ownership="none">
          <doc xml:space="preserve">A font-function structure</doc>
          <type name="font_funcs_t" c:type="hb_font_funcs_t*"/>
        </parameter>
        <parameter name="func" transfer-ownership="none" scope="notified" closure="2" destroy="3">
          <doc xml:space="preserve">The callback function to assign</doc>
          <type name="font_get_glyph_v_advance_func_t" c:type="hb_font_get_glyph_v_advance_func_t"/>
        </parameter>
        <parameter name="user_data" transfer-ownership="none" nullable="1" allow-none="1">
          <doc xml:space="preserve">Data to pass to @func</doc>
          <type name="gpointer" c:type="void*"/>
        </parameter>
        <parameter name="destroy" transfer-ownership="none" scope="notified">
          <doc xml:space="preserve">The function to call when @user_data is not needed anymore</doc>
          <type name="destroy_func_t" c:type="hb_destroy_func_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_funcs_set_glyph_v_advances_func" c:identifier="hb_font_funcs_set_glyph_v_advances_func" version="1.8.6">
      <doc xml:space="preserve">Sets the implementation function for #hb_font_get_glyph_v_advances_func_t.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="ffuncs" transfer-ownership="none">
          <doc xml:space="preserve">A font-function structure</doc>
          <type name="font_funcs_t" c:type="hb_font_funcs_t*"/>
        </parameter>
        <parameter name="func" transfer-ownership="none" scope="notified" closure="2" destroy="3">
          <doc xml:space="preserve">The callback function to assign</doc>
          <type name="font_get_glyph_v_advances_func_t" c:type="hb_font_get_glyph_v_advances_func_t"/>
        </parameter>
        <parameter name="user_data" transfer-ownership="none" nullable="1" allow-none="1">
          <doc xml:space="preserve">Data to pass to @func</doc>
          <type name="gpointer" c:type="void*"/>
        </parameter>
        <parameter name="destroy" transfer-ownership="none" scope="notified">
          <doc xml:space="preserve">The function to call when @user_data is not needed anymore</doc>
          <type name="destroy_func_t" c:type="hb_destroy_func_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_funcs_set_glyph_v_kerning_func" c:identifier="hb_font_funcs_set_glyph_v_kerning_func" version="0.9.2" deprecated="1" deprecated-version="2.0.0">
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="ffuncs" transfer-ownership="none">
          <doc xml:space="preserve">font functions.</doc>
          <type name="font_funcs_t" c:type="hb_font_funcs_t*"/>
        </parameter>
        <parameter name="func" transfer-ownership="none" scope="notified" closure="2" destroy="3">
          <type name="font_get_glyph_v_kerning_func_t" c:type="hb_font_get_glyph_v_kerning_func_t"/>
        </parameter>
        <parameter name="user_data" transfer-ownership="none" nullable="1" allow-none="1">
          <type name="gpointer" c:type="void*"/>
        </parameter>
        <parameter name="destroy" transfer-ownership="none" scope="notified">
          <type name="destroy_func_t" c:type="hb_destroy_func_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_funcs_set_glyph_v_origin_func" c:identifier="hb_font_funcs_set_glyph_v_origin_func" version="0.9.2">
      <doc xml:space="preserve">Sets the implementation function for #hb_font_get_glyph_v_origin_func_t.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="ffuncs" transfer-ownership="none">
          <doc xml:space="preserve">A font-function structure</doc>
          <type name="font_funcs_t" c:type="hb_font_funcs_t*"/>
        </parameter>
        <parameter name="func" transfer-ownership="none" scope="notified" closure="2" destroy="3">
          <doc xml:space="preserve">The callback function to assign</doc>
          <type name="font_get_glyph_v_origin_func_t" c:type="hb_font_get_glyph_v_origin_func_t"/>
        </parameter>
        <parameter name="user_data" transfer-ownership="none" nullable="1" allow-none="1">
          <doc xml:space="preserve">Data to pass to @func</doc>
          <type name="gpointer" c:type="void*"/>
        </parameter>
        <parameter name="destroy" transfer-ownership="none" scope="notified">
          <doc xml:space="preserve">The function to call when @user_data is not needed anymore</doc>
          <type name="destroy_func_t" c:type="hb_destroy_func_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_funcs_set_nominal_glyph_func" c:identifier="hb_font_funcs_set_nominal_glyph_func" version="1.2.3">
      <doc xml:space="preserve">Sets the implementation function for #hb_font_get_nominal_glyph_func_t.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="ffuncs" transfer-ownership="none">
          <doc xml:space="preserve">A font-function structure</doc>
          <type name="font_funcs_t" c:type="hb_font_funcs_t*"/>
        </parameter>
        <parameter name="func" transfer-ownership="none" scope="notified" closure="2" destroy="3">
          <doc xml:space="preserve">The callback function to assign</doc>
          <type name="font_get_nominal_glyph_func_t" c:type="hb_font_get_nominal_glyph_func_t"/>
        </parameter>
        <parameter name="user_data" transfer-ownership="none" nullable="1" allow-none="1">
          <doc xml:space="preserve">Data to pass to @func</doc>
          <type name="gpointer" c:type="void*"/>
        </parameter>
        <parameter name="destroy" transfer-ownership="none" scope="notified">
          <doc xml:space="preserve">The function to call when @user_data is not needed anymore</doc>
          <type name="destroy_func_t" c:type="hb_destroy_func_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_funcs_set_nominal_glyphs_func" c:identifier="hb_font_funcs_set_nominal_glyphs_func" version="2.0.0">
      <doc xml:space="preserve">Sets the implementation function for #hb_font_get_nominal_glyphs_func_t.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="ffuncs" transfer-ownership="none">
          <doc xml:space="preserve">A font-function structure</doc>
          <type name="font_funcs_t" c:type="hb_font_funcs_t*"/>
        </parameter>
        <parameter name="func" transfer-ownership="none" scope="notified" closure="2" destroy="3">
          <doc xml:space="preserve">The callback function to assign</doc>
          <type name="font_get_nominal_glyphs_func_t" c:type="hb_font_get_nominal_glyphs_func_t"/>
        </parameter>
        <parameter name="user_data" transfer-ownership="none" nullable="1" allow-none="1">
          <doc xml:space="preserve">Data to pass to @func</doc>
          <type name="gpointer" c:type="void*"/>
        </parameter>
        <parameter name="destroy" transfer-ownership="none" scope="notified">
          <doc xml:space="preserve">The function to call when @user_data is not needed anymore</doc>
          <type name="destroy_func_t" c:type="hb_destroy_func_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_funcs_set_user_data" c:identifier="hb_font_funcs_set_user_data" version="0.9.2" introspectable="0">
      <doc xml:space="preserve">Attaches a user-data key/data pair to the specified font-functions structure.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%true if success, %false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="ffuncs" transfer-ownership="none">
          <doc xml:space="preserve">The font-functions structure</doc>
          <type name="font_funcs_t" c:type="hb_font_funcs_t*"/>
        </parameter>
        <parameter name="key" transfer-ownership="none">
          <doc xml:space="preserve">The user-data key to set</doc>
          <type name="user_data_key_t" c:type="hb_user_data_key_t*"/>
        </parameter>
        <parameter name="data" transfer-ownership="none" nullable="1" allow-none="1">
          <doc xml:space="preserve">A pointer to the user data set</doc>
          <type name="gpointer" c:type="void*"/>
        </parameter>
        <parameter name="destroy" transfer-ownership="none">
          <doc xml:space="preserve">A callback to call when @data is not needed anymore</doc>
          <type name="destroy_func_t" c:type="hb_destroy_func_t"/>
        </parameter>
        <parameter name="replace" transfer-ownership="none">
          <doc xml:space="preserve">Whether to replace an existing data with the same key</doc>
          <type name="bool_t" c:type="hb_bool_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_funcs_set_variation_glyph_func" c:identifier="hb_font_funcs_set_variation_glyph_func" version="1.2.3">
      <doc xml:space="preserve">Sets the implementation function for #hb_font_get_variation_glyph_func_t.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="ffuncs" transfer-ownership="none">
          <doc xml:space="preserve">A font-function structure</doc>
          <type name="font_funcs_t" c:type="hb_font_funcs_t*"/>
        </parameter>
        <parameter name="func" transfer-ownership="none" scope="notified" closure="2" destroy="3">
          <doc xml:space="preserve">The callback function to assign</doc>
          <type name="font_get_variation_glyph_func_t" c:type="hb_font_get_variation_glyph_func_t"/>
        </parameter>
        <parameter name="user_data" transfer-ownership="none" nullable="1" allow-none="1">
          <doc xml:space="preserve">Data to pass to @func</doc>
          <type name="gpointer" c:type="void*"/>
        </parameter>
        <parameter name="destroy" transfer-ownership="none" scope="notified">
          <doc xml:space="preserve">The function to call when @user_data is not needed anymore</doc>
          <type name="destroy_func_t" c:type="hb_destroy_func_t"/>
        </parameter>
      </parameters>
    </function>
    <record name="font_funcs_t" c:type="hb_font_funcs_t" glib:type-name="hb_font_funcs_t" glib:get-type="hb_gobject_font_funcs_get_type" c:symbol-prefix="gobject_font_funcs">
      <doc xml:space="preserve">Data type containing a set of virtual methods used for
working on #hb_font_t font objects.

HarfBuzz provides a lightweight default function for each of
the methods in #hb_font_funcs_t. Client programs can implement
their own replacements for the individual font functions, as
needed, and replace the default by calling the setter for a
method.</doc>
    </record>
    <function name="font_get_empty" c:identifier="hb_font_get_empty" version="0.9.2">
      <doc xml:space="preserve">Fetches the empty font object.</doc>
      <return-value transfer-ownership="full">
        <doc xml:space="preserve">The empty font object</doc>
        <type name="font_t" c:type="hb_font_t*"/>
      </return-value>
    </function>
    <function name="font_get_extents_for_direction" c:identifier="hb_font_get_extents_for_direction" version="1.1.3">
      <doc xml:space="preserve">Fetches the extents for a font in a text segment of the
specified direction.

Calls the appropriate direction-specific variant (horizontal
or vertical) depending on the value of @direction.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="direction" transfer-ownership="none">
          <doc xml:space="preserve">The direction of the text segment</doc>
          <type name="direction_t" c:type="hb_direction_t"/>
        </parameter>
        <parameter name="extents" direction="out" caller-allocates="1" transfer-ownership="none">
          <doc xml:space="preserve">The #hb_glyph_extents_t retrieved</doc>
          <type name="font_extents_t" c:type="hb_font_extents_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_get_face" c:identifier="hb_font_get_face" version="0.9.2">
      <doc xml:space="preserve">Fetches the face associated with the specified font object.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">The #hb_face_t value</doc>
        <type name="face_t" c:type="hb_face_t*"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
      </parameters>
    </function>
    <callback name="font_get_font_extents_func_t" c:type="hb_font_get_font_extents_func_t">
      <return-value transfer-ownership="none">
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="font_data" transfer-ownership="none" nullable="1" allow-none="1">
          <type name="gpointer" c:type="void*"/>
        </parameter>
        <parameter name="extents" transfer-ownership="none">
          <type name="font_extents_t" c:type="hb_font_extents_t*"/>
        </parameter>
        <parameter name="user_data" transfer-ownership="none" nullable="1" allow-none="1" closure="3">
          <type name="gpointer" c:type="void*"/>
        </parameter>
      </parameters>
    </callback>
    <function name="font_get_glyph" c:identifier="hb_font_get_glyph" version="0.9.2">
      <doc xml:space="preserve">Fetches the glyph ID for a Unicode code point in the specified
font, with an optional variation selector.

If @variation_selector is 0, calls hb_font_get_nominal_glyph();
otherwise calls hb_font_get_variation_glyph().</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%true if data found, false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="unicode" transfer-ownership="none">
          <doc xml:space="preserve">The Unicode code point to query</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="variation_selector" transfer-ownership="none">
          <doc xml:space="preserve">A variation-selector code point</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="glyph" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The glyph ID retrieved</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_get_glyph_advance_for_direction" c:identifier="hb_font_get_glyph_advance_for_direction" version="0.9.2">
      <doc xml:space="preserve">Fetches the advance for a glyph ID from the specified font,
in a text segment of the specified direction.

Calls the appropriate direction-specific variant (horizontal
or vertical) depending on the value of @direction.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="glyph" transfer-ownership="none">
          <doc xml:space="preserve">The glyph ID to query</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="direction" transfer-ownership="none">
          <doc xml:space="preserve">The direction of the text segment</doc>
          <type name="direction_t" c:type="hb_direction_t"/>
        </parameter>
        <parameter name="x" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The horizontal advance retrieved</doc>
          <type name="position_t" c:type="hb_position_t*"/>
        </parameter>
        <parameter name="y" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The vertical advance retrieved</doc>
          <type name="position_t" c:type="hb_position_t*"/>
        </parameter>
      </parameters>
    </function>
    <callback name="font_get_glyph_advance_func_t" c:type="hb_font_get_glyph_advance_func_t">
      <doc xml:space="preserve">A virtual method for the #hb_font_funcs_t of an #hb_font_t object.

This method should retrieve the advance for a specified glyph. The
method must return an #hb_position_t.</doc>
      <return-value transfer-ownership="none">
        <type name="position_t" c:type="hb_position_t"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="font_data" transfer-ownership="none" nullable="1" allow-none="1">
          <type name="gpointer" c:type="void*"/>
        </parameter>
        <parameter name="glyph" transfer-ownership="none">
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="user_data" transfer-ownership="none" nullable="1" allow-none="1" closure="3">
          <type name="gpointer" c:type="void*"/>
        </parameter>
      </parameters>
    </callback>
    <function name="font_get_glyph_advances_for_direction" c:identifier="hb_font_get_glyph_advances_for_direction" version="1.8.6">
      <doc xml:space="preserve">Fetches the advances for a sequence of glyph IDs in the specified
font, in a text segment of the specified direction.

Calls the appropriate direction-specific variant (horizontal
or vertical) depending on the value of @direction.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="direction" transfer-ownership="none">
          <doc xml:space="preserve">The direction of the text segment</doc>
          <type name="direction_t" c:type="hb_direction_t"/>
        </parameter>
        <parameter name="count" transfer-ownership="none">
          <doc xml:space="preserve">The number of glyph IDs in the sequence queried</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="first_glyph" transfer-ownership="none">
          <doc xml:space="preserve">The first glyph ID to query</doc>
          <type name="codepoint_t" c:type="const hb_codepoint_t*"/>
        </parameter>
        <parameter name="glyph_stride" transfer-ownership="none">
          <doc xml:space="preserve">The stride between successive glyph IDs</doc>
          <type name="guint" c:type="unsigned"/>
        </parameter>
        <parameter name="first_advance" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The first advance retrieved</doc>
          <type name="position_t" c:type="hb_position_t*"/>
        </parameter>
        <parameter name="advance_stride" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The stride between successive advances</doc>
          <type name="guint" c:type="unsigned"/>
        </parameter>
      </parameters>
    </function>
    <callback name="font_get_glyph_advances_func_t" c:type="hb_font_get_glyph_advances_func_t">
      <doc xml:space="preserve">A virtual method for the #hb_font_funcs_t of an #hb_font_t object.

This method should retrieve the advances for a sequence of glyphs.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="font_data" transfer-ownership="none" nullable="1" allow-none="1">
          <type name="gpointer" c:type="void*"/>
        </parameter>
        <parameter name="count" transfer-ownership="none">
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="first_glyph" transfer-ownership="none">
          <type name="codepoint_t" c:type="const hb_codepoint_t*"/>
        </parameter>
        <parameter name="glyph_stride" transfer-ownership="none">
          <type name="guint" c:type="unsigned"/>
        </parameter>
        <parameter name="first_advance" transfer-ownership="none">
          <type name="position_t" c:type="hb_position_t*"/>
        </parameter>
        <parameter name="advance_stride" transfer-ownership="none">
          <type name="guint" c:type="unsigned"/>
        </parameter>
        <parameter name="user_data" transfer-ownership="none" nullable="1" allow-none="1" closure="7">
          <type name="gpointer" c:type="void*"/>
        </parameter>
      </parameters>
    </callback>
    <function name="font_get_glyph_contour_point" c:identifier="hb_font_get_glyph_contour_point" version="0.9.2">
      <doc xml:space="preserve">Fetches the (x,y) coordinates of a specified contour-point index
in the specified glyph, within the specified font.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%true if data found, false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="glyph" transfer-ownership="none">
          <doc xml:space="preserve">The glyph ID to query</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="point_index" transfer-ownership="none">
          <doc xml:space="preserve">The contour-point index to query</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="x" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The X value retrieved for the contour point</doc>
          <type name="position_t" c:type="hb_position_t*"/>
        </parameter>
        <parameter name="y" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The Y value retrieved for the contour point</doc>
          <type name="position_t" c:type="hb_position_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_get_glyph_contour_point_for_origin" c:identifier="hb_font_get_glyph_contour_point_for_origin" version="0.9.2">
      <doc xml:space="preserve">Fetches the (X,Y) coordinates of a specified contour-point index
in the specified glyph ID in the specified font, with respect
to the origin in a text segment in the specified direction.

Calls the appropriate direction-specific variant (horizontal
or vertical) depending on the value of @direction.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%true if data found, false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="glyph" transfer-ownership="none">
          <doc xml:space="preserve">The glyph ID to query</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="point_index" transfer-ownership="none">
          <doc xml:space="preserve">The contour-point index to query</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="direction" transfer-ownership="none">
          <doc xml:space="preserve">The direction of the text segment</doc>
          <type name="direction_t" c:type="hb_direction_t"/>
        </parameter>
        <parameter name="x" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The X value retrieved for the contour point</doc>
          <type name="position_t" c:type="hb_position_t*"/>
        </parameter>
        <parameter name="y" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The Y value retrieved for the contour point</doc>
          <type name="position_t" c:type="hb_position_t*"/>
        </parameter>
      </parameters>
    </function>
    <callback name="font_get_glyph_contour_point_func_t" c:type="hb_font_get_glyph_contour_point_func_t">
      <doc xml:space="preserve">A virtual method for the #hb_font_funcs_t of an #hb_font_t object.

This method should retrieve the (X,Y) coordinates (in font units) for a
specified contour point in a glyph. Each coordinate must be returned as
an #hb_position_t output parameter.</doc>
      <return-value transfer-ownership="none">
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="font_data" transfer-ownership="none" nullable="1" allow-none="1">
          <type name="gpointer" c:type="void*"/>
        </parameter>
        <parameter name="glyph" transfer-ownership="none">
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="point_index" transfer-ownership="none">
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="x" transfer-ownership="none">
          <type name="position_t" c:type="hb_position_t*"/>
        </parameter>
        <parameter name="y" transfer-ownership="none">
          <type name="position_t" c:type="hb_position_t*"/>
        </parameter>
        <parameter name="user_data" transfer-ownership="none" nullable="1" allow-none="1" closure="6">
          <type name="gpointer" c:type="void*"/>
        </parameter>
      </parameters>
    </callback>
    <function name="font_get_glyph_extents" c:identifier="hb_font_get_glyph_extents" version="0.9.2">
      <doc xml:space="preserve">Fetches the #hb_glyph_extents_t data for a glyph ID
in the specified font.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%true if data found, false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="glyph" transfer-ownership="none">
          <doc xml:space="preserve">The glyph ID to query</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="extents" direction="out" caller-allocates="1" transfer-ownership="none">
          <doc xml:space="preserve">The #hb_glyph_extents_t retrieved</doc>
          <type name="glyph_extents_t" c:type="hb_glyph_extents_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_get_glyph_extents_for_origin" c:identifier="hb_font_get_glyph_extents_for_origin" version="0.9.2">
      <doc xml:space="preserve">Fetches the #hb_glyph_extents_t data for a glyph ID
in the specified font, with respect to the origin in
a text segment in the specified direction.

Calls the appropriate direction-specific variant (horizontal
or vertical) depending on the value of @direction.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%true if data found, false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="glyph" transfer-ownership="none">
          <doc xml:space="preserve">The glyph ID to query</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="direction" transfer-ownership="none">
          <doc xml:space="preserve">The direction of the text segment</doc>
          <type name="direction_t" c:type="hb_direction_t"/>
        </parameter>
        <parameter name="extents" direction="out" caller-allocates="1" transfer-ownership="none">
          <doc xml:space="preserve">The #hb_glyph_extents_t retrieved</doc>
          <type name="glyph_extents_t" c:type="hb_glyph_extents_t*"/>
        </parameter>
      </parameters>
    </function>
    <callback name="font_get_glyph_extents_func_t" c:type="hb_font_get_glyph_extents_func_t">
      <doc xml:space="preserve">A virtual method for the #hb_font_funcs_t of an #hb_font_t object.

This method should retrieve the extents for a specified glyph. Extents must be
returned in an #hb_glyph_extents output parameter.</doc>
      <return-value transfer-ownership="none">
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="font_data" transfer-ownership="none" nullable="1" allow-none="1">
          <type name="gpointer" c:type="void*"/>
        </parameter>
        <parameter name="glyph" transfer-ownership="none">
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="extents" transfer-ownership="none">
          <type name="glyph_extents_t" c:type="hb_glyph_extents_t*"/>
        </parameter>
        <parameter name="user_data" transfer-ownership="none" nullable="1" allow-none="1" closure="4">
          <type name="gpointer" c:type="void*"/>
        </parameter>
      </parameters>
    </callback>
    <function name="font_get_glyph_from_name" c:identifier="hb_font_get_glyph_from_name" version="0.9.2">
      <doc xml:space="preserve">Fetches the glyph ID that corresponds to a name string in the specified @font.

&lt;note&gt;Note: @len == -1 means the name string is null-terminated.&lt;/note&gt;</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%true if data found, false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="name" transfer-ownership="none">
          <doc xml:space="preserve">The name string to query</doc>
          <array length="2" zero-terminated="0" c:type="const char*">
            <type name="utf8" c:type="char"/>
          </array>
        </parameter>
        <parameter name="len" transfer-ownership="none">
          <doc xml:space="preserve">The length of the name queried</doc>
          <type name="gint" c:type="int"/>
        </parameter>
        <parameter name="glyph" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The glyph ID retrieved</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t*"/>
        </parameter>
      </parameters>
    </function>
    <callback name="font_get_glyph_from_name_func_t" c:type="hb_font_get_glyph_from_name_func_t">
      <doc xml:space="preserve">A virtual method for the #hb_font_funcs_t of an #hb_font_t object.

This method should retrieve the glyph ID that corresponds to a glyph-name
string.</doc>
      <return-value transfer-ownership="none">
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="font_data" transfer-ownership="none" nullable="1" allow-none="1">
          <type name="gpointer" c:type="void*"/>
        </parameter>
        <parameter name="name" transfer-ownership="none">
          <type name="utf8" c:type="const char*"/>
        </parameter>
        <parameter name="len" transfer-ownership="none">
          <type name="gint" c:type="int"/>
        </parameter>
        <parameter name="glyph" transfer-ownership="none">
          <type name="codepoint_t" c:type="hb_codepoint_t*"/>
        </parameter>
        <parameter name="user_data" transfer-ownership="none" nullable="1" allow-none="1" closure="5">
          <type name="gpointer" c:type="void*"/>
        </parameter>
      </parameters>
    </callback>
    <callback name="font_get_glyph_func_t" c:type="hb_font_get_glyph_func_t">
      <return-value transfer-ownership="none">
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="font_data" transfer-ownership="none" nullable="1" allow-none="1">
          <type name="gpointer" c:type="void*"/>
        </parameter>
        <parameter name="unicode" transfer-ownership="none">
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="variation_selector" transfer-ownership="none">
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="glyph" transfer-ownership="none">
          <type name="codepoint_t" c:type="hb_codepoint_t*"/>
        </parameter>
        <parameter name="user_data" transfer-ownership="none" nullable="1" allow-none="1" closure="5">
          <type name="gpointer" c:type="void*"/>
        </parameter>
      </parameters>
    </callback>
    <function name="font_get_glyph_h_advance" c:identifier="hb_font_get_glyph_h_advance" version="0.9.2">
      <doc xml:space="preserve">Fetches the advance for a glyph ID in the specified font,
for horizontal text segments.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">The advance of @glyph within @font</doc>
        <type name="position_t" c:type="hb_position_t"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="glyph" transfer-ownership="none">
          <doc xml:space="preserve">The glyph ID to query</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_get_glyph_h_advances" c:identifier="hb_font_get_glyph_h_advances" version="1.8.6">
      <doc xml:space="preserve">Fetches the advances for a sequence of glyph IDs in the specified
font, for horizontal text segments.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="count" transfer-ownership="none">
          <doc xml:space="preserve">The number of glyph IDs in the sequence queried</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="first_glyph" transfer-ownership="none">
          <doc xml:space="preserve">The first glyph ID to query</doc>
          <type name="codepoint_t" c:type="const hb_codepoint_t*"/>
        </parameter>
        <parameter name="glyph_stride" transfer-ownership="none">
          <doc xml:space="preserve">The stride between successive glyph IDs</doc>
          <type name="guint" c:type="unsigned"/>
        </parameter>
        <parameter name="first_advance" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The first advance retrieved</doc>
          <type name="position_t" c:type="hb_position_t*"/>
        </parameter>
        <parameter name="advance_stride" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The stride between successive advances</doc>
          <type name="guint" c:type="unsigned"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_get_glyph_h_kerning" c:identifier="hb_font_get_glyph_h_kerning" version="0.9.2">
      <doc xml:space="preserve">Fetches the kerning-adjustment value for a glyph-pair in
the specified font, in horizontal text segments.

&lt;note&gt;It handles legacy kerning only (as returned by the corresponding
#hb_font_funcs_t function).&lt;/note&gt;</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">The kerning adjustment value</doc>
        <type name="position_t" c:type="hb_position_t"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="left_glyph" transfer-ownership="none">
          <doc xml:space="preserve">The glyph ID of the left glyph in the glyph pair</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="right_glyph" transfer-ownership="none">
          <doc xml:space="preserve">The glyph ID of the right glyph in the glyph pair</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_get_glyph_h_origin" c:identifier="hb_font_get_glyph_h_origin" version="0.9.2">
      <doc xml:space="preserve">Fetches the (X,Y) coordinates of the origin for a glyph ID
in the specified font, for horizontal text segments.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%true if data found, false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="glyph" transfer-ownership="none">
          <doc xml:space="preserve">The glyph ID to query</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="x" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The X coordinate of the origin</doc>
          <type name="position_t" c:type="hb_position_t*"/>
        </parameter>
        <parameter name="y" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The Y coordinate of the origin</doc>
          <type name="position_t" c:type="hb_position_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_get_glyph_kerning_for_direction" c:identifier="hb_font_get_glyph_kerning_for_direction" version="0.9.2">
      <doc xml:space="preserve">Fetches the kerning-adjustment value for a glyph-pair in the specified font.

Calls the appropriate direction-specific variant (horizontal
or vertical) depending on the value of @direction.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="first_glyph" transfer-ownership="none">
          <doc xml:space="preserve">The glyph ID of the first glyph in the glyph pair to query</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="second_glyph" transfer-ownership="none">
          <doc xml:space="preserve">The glyph ID of the second glyph in the glyph pair to query</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="direction" transfer-ownership="none">
          <doc xml:space="preserve">The direction of the text segment</doc>
          <type name="direction_t" c:type="hb_direction_t"/>
        </parameter>
        <parameter name="x" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The horizontal kerning-adjustment value retrieved</doc>
          <type name="position_t" c:type="hb_position_t*"/>
        </parameter>
        <parameter name="y" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The vertical kerning-adjustment value retrieved</doc>
          <type name="position_t" c:type="hb_position_t*"/>
        </parameter>
      </parameters>
    </function>
    <callback name="font_get_glyph_kerning_func_t" c:type="hb_font_get_glyph_kerning_func_t">
      <return-value transfer-ownership="none">
        <type name="position_t" c:type="hb_position_t"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="font_data" transfer-ownership="none" nullable="1" allow-none="1">
          <type name="gpointer" c:type="void*"/>
        </parameter>
        <parameter name="first_glyph" transfer-ownership="none">
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="second_glyph" transfer-ownership="none">
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="user_data" transfer-ownership="none" nullable="1" allow-none="1" closure="4">
          <type name="gpointer" c:type="void*"/>
        </parameter>
      </parameters>
    </callback>
    <function name="font_get_glyph_name" c:identifier="hb_font_get_glyph_name" version="0.9.2">
      <doc xml:space="preserve">Fetches the glyph-name string for a glyph ID in the specified @font.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%true if data found, zero otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="glyph" transfer-ownership="none">
          <doc xml:space="preserve">The glyph ID to query</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="name" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">Name string retrieved for the glyph ID</doc>
          <array length="3" zero-terminated="0" c:type="char*">
            <type name="utf8" c:type="char"/>
          </array>
        </parameter>
        <parameter name="size" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">Length of the glyph-name string retrieved</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
      </parameters>
    </function>
    <callback name="font_get_glyph_name_func_t" c:type="hb_font_get_glyph_name_func_t">
      <doc xml:space="preserve">A virtual method for the #hb_font_funcs_t of an #hb_font_t object.

This method should retrieve the glyph name that corresponds to a
glyph ID. The name should be returned in a string output parameter.</doc>
      <return-value transfer-ownership="none">
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="font_data" transfer-ownership="none" nullable="1" allow-none="1">
          <type name="gpointer" c:type="void*"/>
        </parameter>
        <parameter name="glyph" transfer-ownership="none">
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="name" transfer-ownership="none">
          <type name="utf8" c:type="char*"/>
        </parameter>
        <parameter name="size" transfer-ownership="none">
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="user_data" transfer-ownership="none" nullable="1" allow-none="1" closure="5">
          <type name="gpointer" c:type="void*"/>
        </parameter>
      </parameters>
    </callback>
    <function name="font_get_glyph_origin_for_direction" c:identifier="hb_font_get_glyph_origin_for_direction" version="0.9.2">
      <doc xml:space="preserve">Fetches the (X,Y) coordinates of the origin for a glyph in
the specified font.

Calls the appropriate direction-specific variant (horizontal
or vertical) depending on the value of @direction.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="glyph" transfer-ownership="none">
          <doc xml:space="preserve">The glyph ID to query</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="direction" transfer-ownership="none">
          <doc xml:space="preserve">The direction of the text segment</doc>
          <type name="direction_t" c:type="hb_direction_t"/>
        </parameter>
        <parameter name="x" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The X coordinate retrieved for the origin</doc>
          <type name="position_t" c:type="hb_position_t*"/>
        </parameter>
        <parameter name="y" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The Y coordinate retrieved for the origin</doc>
          <type name="position_t" c:type="hb_position_t*"/>
        </parameter>
      </parameters>
    </function>
    <callback name="font_get_glyph_origin_func_t" c:type="hb_font_get_glyph_origin_func_t">
      <doc xml:space="preserve">A virtual method for the #hb_font_funcs_t of an #hb_font_t object.

This method should retrieve the (X,Y) coordinates (in font units) of the
origin for a glyph. Each coordinate must be returned in an #hb_position_t
output parameter.</doc>
      <return-value transfer-ownership="none">
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="font_data" transfer-ownership="none" nullable="1" allow-none="1">
          <type name="gpointer" c:type="void*"/>
        </parameter>
        <parameter name="glyph" transfer-ownership="none">
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="x" transfer-ownership="none">
          <type name="position_t" c:type="hb_position_t*"/>
        </parameter>
        <parameter name="y" transfer-ownership="none">
          <type name="position_t" c:type="hb_position_t*"/>
        </parameter>
        <parameter name="user_data" transfer-ownership="none" nullable="1" allow-none="1" closure="5">
          <type name="gpointer" c:type="void*"/>
        </parameter>
      </parameters>
    </callback>
    <function name="font_get_glyph_v_advance" c:identifier="hb_font_get_glyph_v_advance" version="0.9.2">
      <doc xml:space="preserve">Fetches the advance for a glyph ID in the specified font,
for vertical text segments.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">The advance of @glyph within @font</doc>
        <type name="position_t" c:type="hb_position_t"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="glyph" transfer-ownership="none">
          <doc xml:space="preserve">The glyph ID to query</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_get_glyph_v_advances" c:identifier="hb_font_get_glyph_v_advances" version="1.8.6">
      <doc xml:space="preserve">Fetches the advances for a sequence of glyph IDs in the specified
font, for vertical text segments.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="count" transfer-ownership="none">
          <doc xml:space="preserve">The number of glyph IDs in the sequence queried</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="first_glyph" transfer-ownership="none">
          <doc xml:space="preserve">The first glyph ID to query</doc>
          <type name="codepoint_t" c:type="const hb_codepoint_t*"/>
        </parameter>
        <parameter name="glyph_stride" transfer-ownership="none">
          <doc xml:space="preserve">The stride between successive glyph IDs</doc>
          <type name="guint" c:type="unsigned"/>
        </parameter>
        <parameter name="first_advance" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The first advance retrieved</doc>
          <type name="position_t" c:type="hb_position_t*"/>
        </parameter>
        <parameter name="advance_stride" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The stride between successive advances</doc>
          <type name="guint" c:type="unsigned"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_get_glyph_v_kerning" c:identifier="hb_font_get_glyph_v_kerning" version="0.9.2" deprecated="1" deprecated-version="2.0.0">
      <doc xml:space="preserve">Fetches the kerning-adjustment value for a glyph-pair in
the specified font, in vertical text segments.

&lt;note&gt;It handles legacy kerning only (as returned by the corresponding
#hb_font_funcs_t function).&lt;/note&gt;</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">The kerning adjustment value</doc>
        <type name="position_t" c:type="hb_position_t"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="top_glyph" transfer-ownership="none">
          <doc xml:space="preserve">The glyph ID of the top glyph in the glyph pair</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="bottom_glyph" transfer-ownership="none">
          <doc xml:space="preserve">The glyph ID of the bottom glyph in the glyph pair</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_get_glyph_v_origin" c:identifier="hb_font_get_glyph_v_origin" version="0.9.2">
      <doc xml:space="preserve">Fetches the (X,Y) coordinates of the origin for a glyph ID
in the specified font, for vertical text segments.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%true if data found, false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="glyph" transfer-ownership="none">
          <doc xml:space="preserve">The glyph ID to query</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="x" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The X coordinate of the origin</doc>
          <type name="position_t" c:type="hb_position_t*"/>
        </parameter>
        <parameter name="y" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The Y coordinate of the origin</doc>
          <type name="position_t" c:type="hb_position_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_get_h_extents" c:identifier="hb_font_get_h_extents" version="1.1.3">
      <doc xml:space="preserve">Fetches the extents for a specified font, in horizontal
text segments.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%true if data found, false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="extents" direction="out" caller-allocates="1" transfer-ownership="none">
          <doc xml:space="preserve">The font extents retrieved</doc>
          <type name="font_extents_t" c:type="hb_font_extents_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_get_nominal_glyph" c:identifier="hb_font_get_nominal_glyph" version="1.2.3">
      <doc xml:space="preserve">Fetches the nominal glyph ID for a Unicode code point in the
specified font.

This version of the function should not be used to fetch glyph IDs
for code points modified by variation selectors. For variation-selector
support, user hb_font_get_variation_glyph() or use hb_font_get_glyph().</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%true if data found, false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="unicode" transfer-ownership="none">
          <doc xml:space="preserve">The Unicode code point to query</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="glyph" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The glyph ID retrieved</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t*"/>
        </parameter>
      </parameters>
    </function>
    <callback name="font_get_nominal_glyph_func_t" c:type="hb_font_get_nominal_glyph_func_t">
      <doc xml:space="preserve">A virtual method for the #hb_font_funcs_t of an #hb_font_t object.

This method should retrieve the nominal glyph ID for a specified Unicode code
point. Glyph IDs must be returned in a #hb_codepoint_t output parameter.</doc>
      <return-value transfer-ownership="none">
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="font_data" transfer-ownership="none" nullable="1" allow-none="1">
          <type name="gpointer" c:type="void*"/>
        </parameter>
        <parameter name="unicode" transfer-ownership="none">
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="glyph" transfer-ownership="none">
          <type name="codepoint_t" c:type="hb_codepoint_t*"/>
        </parameter>
        <parameter name="user_data" transfer-ownership="none" nullable="1" allow-none="1" closure="4">
          <type name="gpointer" c:type="void*"/>
        </parameter>
      </parameters>
    </callback>
    <function name="font_get_nominal_glyphs" c:identifier="hb_font_get_nominal_glyphs" version="2.6.3">
      <return-value transfer-ownership="none">
        <type name="guint" c:type="unsigned int"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">a font.</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="count" transfer-ownership="none">
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="first_unicode" transfer-ownership="none">
          <type name="codepoint_t" c:type="const hb_codepoint_t*"/>
        </parameter>
        <parameter name="unicode_stride" transfer-ownership="none">
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="first_glyph" transfer-ownership="none">
          <type name="codepoint_t" c:type="hb_codepoint_t*"/>
        </parameter>
        <parameter name="glyph_stride" transfer-ownership="none">
          <type name="guint" c:type="unsigned int"/>
        </parameter>
      </parameters>
    </function>
    <callback name="font_get_nominal_glyphs_func_t" c:type="hb_font_get_nominal_glyphs_func_t">
      <doc xml:space="preserve">A virtual method for the #hb_font_funcs_t of an #hb_font_t object.

This method should retrieve the nominal glyph IDs for a sequence of
Unicode code points. Glyph IDs must be returned in a #hb_codepoint_t
output parameter.</doc>
      <return-value transfer-ownership="none">
        <type name="guint" c:type="unsigned int"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="font_data" transfer-ownership="none" nullable="1" allow-none="1">
          <type name="gpointer" c:type="void*"/>
        </parameter>
        <parameter name="count" transfer-ownership="none">
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="first_unicode" transfer-ownership="none">
          <type name="codepoint_t" c:type="const hb_codepoint_t*"/>
        </parameter>
        <parameter name="unicode_stride" transfer-ownership="none">
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="first_glyph" transfer-ownership="none">
          <type name="codepoint_t" c:type="hb_codepoint_t*"/>
        </parameter>
        <parameter name="glyph_stride" transfer-ownership="none">
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="user_data" transfer-ownership="none" nullable="1" allow-none="1" closure="7">
          <type name="gpointer" c:type="void*"/>
        </parameter>
      </parameters>
    </callback>
    <function name="font_get_parent" c:identifier="hb_font_get_parent" version="0.9.2">
      <doc xml:space="preserve">Fetches the parent font of @font.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">The parent font object</doc>
        <type name="font_t" c:type="hb_font_t*"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_get_ppem" c:identifier="hb_font_get_ppem" version="0.9.2">
      <doc xml:space="preserve">Fetches the horizontal and vertical points-per-em (ppem) of a font.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="x_ppem" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">Horizontal ppem value</doc>
          <type name="guint" c:type="unsigned int*"/>
        </parameter>
        <parameter name="y_ppem" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">Vertical ppem value</doc>
          <type name="guint" c:type="unsigned int*"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_get_ptem" c:identifier="hb_font_get_ptem" version="0.9.2">
      <doc xml:space="preserve">Fetches the "point size" of a font. Used in CoreText to
implement optical sizing.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">Point size.  A value of zero means "not set."</doc>
        <type name="gfloat" c:type="float"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_get_scale" c:identifier="hb_font_get_scale" version="0.9.2">
      <doc xml:space="preserve">Fetches the horizontal and vertical scale of a font.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="x_scale" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">Horizontal scale value</doc>
          <type name="gint" c:type="int*"/>
        </parameter>
        <parameter name="y_scale" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">Vertical scale value</doc>
          <type name="gint" c:type="int*"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_get_user_data" c:identifier="hb_font_get_user_data" version="0.9.2" introspectable="0">
      <doc xml:space="preserve">Fetches the user-data object associated with the specified key,
attached to the specified font object.</doc>
      <return-value transfer-ownership="none" nullable="1">
        <doc xml:space="preserve">Pointer to the user data</doc>
        <type name="gpointer" c:type="void*"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="key" transfer-ownership="none">
          <doc xml:space="preserve">The user-data key to query</doc>
          <type name="user_data_key_t" c:type="hb_user_data_key_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_get_v_extents" c:identifier="hb_font_get_v_extents" version="1.1.3">
      <doc xml:space="preserve">Fetches the extents for a specified font, in vertical
text segments.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%true if data found, false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="extents" direction="out" caller-allocates="1" transfer-ownership="none">
          <doc xml:space="preserve">The font extents retrieved</doc>
          <type name="font_extents_t" c:type="hb_font_extents_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_get_var_coords_normalized" c:identifier="hb_font_get_var_coords_normalized" version="1.4.2">
      <doc xml:space="preserve">Fetches the list of normalized variation coordinates currently
set on a font.

Return value is valid as long as variation coordinates of the font
are not modified.</doc>
      <return-value transfer-ownership="none">
        <type name="gint" c:type="const int*"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="length" transfer-ownership="none">
          <doc xml:space="preserve">Number of coordinates retrieved</doc>
          <type name="guint" c:type="unsigned int*"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_get_variation_glyph" c:identifier="hb_font_get_variation_glyph" version="1.2.3">
      <doc xml:space="preserve">Fetches the glyph ID for a Unicode code point when followed by
by the specified variation-selector code point, in the specified
font.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%true if data found, false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="unicode" transfer-ownership="none">
          <doc xml:space="preserve">The Unicode code point to query</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="variation_selector" transfer-ownership="none">
          <doc xml:space="preserve">The  variation-selector code point to query</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="glyph" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The glyph ID retrieved</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t*"/>
        </parameter>
      </parameters>
    </function>
    <callback name="font_get_variation_glyph_func_t" c:type="hb_font_get_variation_glyph_func_t">
      <doc xml:space="preserve">A virtual method for the #hb_font_funcs_t of an #hb_font_t object.

This method should retrieve the glyph ID for a specified Unicode code point
followed by a specified Variation Selector code point. Glyph IDs must be
returned in a #hb_codepoint_t output parameter.</doc>
      <return-value transfer-ownership="none">
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="font_data" transfer-ownership="none" nullable="1" allow-none="1">
          <type name="gpointer" c:type="void*"/>
        </parameter>
        <parameter name="unicode" transfer-ownership="none">
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="variation_selector" transfer-ownership="none">
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="glyph" transfer-ownership="none">
          <type name="codepoint_t" c:type="hb_codepoint_t*"/>
        </parameter>
        <parameter name="user_data" transfer-ownership="none" nullable="1" allow-none="1" closure="5">
          <type name="gpointer" c:type="void*"/>
        </parameter>
      </parameters>
    </callback>
    <function name="font_glyph_from_string" c:identifier="hb_font_glyph_from_string" version="0.9.2">
      <doc xml:space="preserve">Fetches the glyph ID from @font that matches the specified string.
Strings of the format `gidDDD` or `uniUUUU` are parsed automatically.

&lt;note&gt;Note: @len == -1 means the string is null-terminated.&lt;/note&gt;</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%true if data found, false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="s" transfer-ownership="none">
          <doc xml:space="preserve">string to query</doc>
          <array length="2" zero-terminated="0" c:type="const char*">
            <type name="guint8"/>
          </array>
        </parameter>
        <parameter name="len" transfer-ownership="none">
          <doc xml:space="preserve">The length of the string @s</doc>
          <type name="gint" c:type="int"/>
        </parameter>
        <parameter name="glyph" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The glyph ID corresponding to the string requested</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_glyph_to_string" c:identifier="hb_font_glyph_to_string" version="0.9.2">
      <doc xml:space="preserve">Fetches the name of the specified glyph ID in @font and returns
it in string @s.

If the glyph ID has no name in @font, a string of the form `gidDDD` is
generated, with `DDD` being the glyph ID.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="glyph" transfer-ownership="none">
          <doc xml:space="preserve">The glyph ID to query</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="s" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The string containing the glyph name</doc>
          <array length="3" zero-terminated="0" c:type="char*">
            <type name="utf8" c:type="char"/>
          </array>
        </parameter>
        <parameter name="size" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">Length of string @s</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_is_immutable" c:identifier="hb_font_is_immutable" version="0.9.2">
      <doc xml:space="preserve">Tests whether a font object is immutable.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%true if @font is immutable, false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_make_immutable" c:identifier="hb_font_make_immutable" version="0.9.2">
      <doc xml:space="preserve">Makes @font immutable.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_reference" c:identifier="hb_font_reference" version="0.9.2" introspectable="0">
      <doc xml:space="preserve">Increases the reference count on the given font object.</doc>
      <return-value transfer-ownership="full">
        <doc xml:space="preserve">The @font object</doc>
        <type name="font_t" c:type="hb_font_t*"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_set_face" c:identifier="hb_font_set_face" version="1.4.3">
      <doc xml:space="preserve">Sets @face as the font-face value of @font.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">The #hb_face_t to assign</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_set_funcs" c:identifier="hb_font_set_funcs" version="0.9.2">
      <doc xml:space="preserve">Replaces the font-functions structure attached to a font, updating
the font's user-data with @font-data and the @destroy callback.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="klass" transfer-ownership="none" scope="notified" closure="2" destroy="3">
          <type name="font_funcs_t" c:type="hb_font_funcs_t*"/>
        </parameter>
        <parameter name="font_data" transfer-ownership="none" nullable="1" allow-none="1">
          <doc xml:space="preserve">Data to attach to @font</doc>
          <type name="gpointer" c:type="void*"/>
        </parameter>
        <parameter name="destroy" transfer-ownership="none" scope="notified">
          <doc xml:space="preserve">The function to call when @font_data is not needed anymore</doc>
          <type name="destroy_func_t" c:type="hb_destroy_func_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_set_funcs_data" c:identifier="hb_font_set_funcs_data" version="0.9.2">
      <doc xml:space="preserve">Replaces the user data attached to a font, updating the font's
@destroy callback.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="font_data" transfer-ownership="none" nullable="1" allow-none="1" scope="notified" destroy="2">
          <doc xml:space="preserve">Data to attach to @font</doc>
          <type name="gpointer" c:type="void*"/>
        </parameter>
        <parameter name="destroy" transfer-ownership="none" scope="notified">
          <doc xml:space="preserve">The function to call when @font_data is not needed anymore</doc>
          <type name="destroy_func_t" c:type="hb_destroy_func_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_set_parent" c:identifier="hb_font_set_parent" version="1.0.5">
      <doc xml:space="preserve">Sets the parent font of @font.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="parent" transfer-ownership="none">
          <doc xml:space="preserve">The parent font object to assign</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_set_ppem" c:identifier="hb_font_set_ppem" version="0.9.2">
      <doc xml:space="preserve">Sets the horizontal and vertical pixels-per-em (ppem) of a font.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="x_ppem" transfer-ownership="none">
          <doc xml:space="preserve">Horizontal ppem value to assign</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="y_ppem" transfer-ownership="none">
          <doc xml:space="preserve">Vertical ppem value to assign</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_set_ptem" c:identifier="hb_font_set_ptem" version="1.6.0">
      <doc xml:space="preserve">Sets the "point size" of a font. Set to zero to unset.
Used in CoreText to implement optical sizing.

&lt;note&gt;Note: There are 72 points in an inch.&lt;/note&gt;</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="ptem" transfer-ownership="none">
          <doc xml:space="preserve">font size in points.</doc>
          <type name="gfloat" c:type="float"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_set_scale" c:identifier="hb_font_set_scale" version="0.9.2">
      <doc xml:space="preserve">Sets the horizontal and vertical scale of a font.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="x_scale" transfer-ownership="none">
          <doc xml:space="preserve">Horizontal scale value to assign</doc>
          <type name="gint" c:type="int"/>
        </parameter>
        <parameter name="y_scale" transfer-ownership="none">
          <doc xml:space="preserve">Vertical scale value to assign</doc>
          <type name="gint" c:type="int"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_set_user_data" c:identifier="hb_font_set_user_data" version="0.9.2" introspectable="0">
      <doc xml:space="preserve">Attaches a user-data key/data pair to the specified font object.</doc>
      <return-value transfer-ownership="none">
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="key" transfer-ownership="none">
          <doc xml:space="preserve">The user-data key</doc>
          <type name="user_data_key_t" c:type="hb_user_data_key_t*"/>
        </parameter>
        <parameter name="data" transfer-ownership="none" nullable="1" allow-none="1">
          <doc xml:space="preserve">A pointer to the user data</doc>
          <type name="gpointer" c:type="void*"/>
        </parameter>
        <parameter name="destroy" transfer-ownership="none">
          <doc xml:space="preserve">A callback to call when @data is not needed anymore</doc>
          <type name="destroy_func_t" c:type="hb_destroy_func_t"/>
        </parameter>
        <parameter name="replace" transfer-ownership="none">
          <doc xml:space="preserve">Whether to replace an existing data with the same key</doc>
          <type name="bool_t" c:type="hb_bool_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_set_var_coords_design" c:identifier="hb_font_set_var_coords_design" version="1.4.2">
      <doc xml:space="preserve">Applies a list of variation coordinates (in design-space units)
to a font.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="coords" transfer-ownership="none">
          <doc xml:space="preserve">Array of variation coordinates to apply</doc>
          <array length="2" zero-terminated="0" c:type="const float*">
            <type name="gfloat" c:type="float"/>
          </array>
        </parameter>
        <parameter name="coords_length" transfer-ownership="none">
          <doc xml:space="preserve">Number of coordinates to apply</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_set_var_coords_normalized" c:identifier="hb_font_set_var_coords_normalized" version="1.4.2">
      <doc xml:space="preserve">Applies a list of variation coordinates (in normalized units)
to a font.

&lt;note&gt;Note: Coordinates should be normalized to 2.14.&lt;/note&gt;</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="coords" transfer-ownership="none">
          <doc xml:space="preserve">Array of variation coordinates to apply</doc>
          <array length="2" zero-terminated="0" c:type="const int*">
            <type name="gint" c:type="int"/>
          </array>
        </parameter>
        <parameter name="coords_length" transfer-ownership="none">
          <doc xml:space="preserve">Number of coordinates to apply</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_set_var_named_instance" c:identifier="hb_font_set_var_named_instance" version="2.6.0">
      <doc xml:space="preserve">Sets design coords of a font from a named instance index.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">a font.</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="instance_index" transfer-ownership="none">
          <doc xml:space="preserve">named instance index.</doc>
          <type name="guint" c:type="unsigned"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_set_variations" c:identifier="hb_font_set_variations" version="1.4.2">
      <doc xml:space="preserve">Applies a list of font-variation settings to a font.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="variations" transfer-ownership="none">
          <doc xml:space="preserve">Array of variation settings to apply</doc>
          <array length="2" zero-terminated="0" c:type="const hb_variation_t*">
            <type name="variation_t" c:type="hb_variation_t"/>
          </array>
        </parameter>
        <parameter name="variations_length" transfer-ownership="none">
          <doc xml:space="preserve">Number of variations to apply</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
      </parameters>
    </function>
    <function name="font_subtract_glyph_origin_for_direction" c:identifier="hb_font_subtract_glyph_origin_for_direction" version="0.9.2">
      <doc xml:space="preserve">Subtracts the origin coordinates from an (X,Y) point coordinate,
in the specified glyph ID in the specified font.

Calls the appropriate direction-specific variant (horizontal
or vertical) depending on the value of @direction.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="glyph" transfer-ownership="none">
          <doc xml:space="preserve">The glyph ID to query</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="direction" transfer-ownership="none">
          <doc xml:space="preserve">The direction of the text segment</doc>
          <type name="direction_t" c:type="hb_direction_t"/>
        </parameter>
        <parameter name="x" direction="inout" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">Input = The original X coordinate
    Output = The X coordinate minus the X-coordinate of the origin</doc>
          <type name="position_t" c:type="hb_position_t*"/>
        </parameter>
        <parameter name="y" direction="inout" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">Input = The original Y coordinate
    Output = The Y coordinate minus the Y-coordinate of the origin</doc>
          <type name="position_t" c:type="hb_position_t*"/>
        </parameter>
      </parameters>
    </function>
    <record name="font_t" c:type="hb_font_t" glib:type-name="hb_font_t" glib:get-type="hb_gobject_font_get_type" c:symbol-prefix="gobject_font"/>
    <function name="ft_font_changed" c:identifier="hb_ft_font_changed">
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="ft_font_get_load_flags" c:identifier="hb_ft_font_get_load_flags" version="1.0.5">
      <doc xml:space="preserve">Fetches the FT_Load_Glyph load flags of the specified #hb_font_t.

For more information, see
https://www.freetype.org/freetype2/docs/reference/ft2-base_interface.html#ft_load_xxx</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">FT_Load_Glyph flags found</doc>
        <type name="gint" c:type="int"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="ft_font_set_funcs" c:identifier="hb_ft_font_set_funcs" version="1.0.5">
      <doc xml:space="preserve">Configures the font-functions structure of the specified
#hb_font_t font object to use FreeType font functions.

In particular, you can use this function to configure an
existing #hb_face_t face object for use with FreeType font
functions even if that #hb_face_t face object was initially
created with hb_face_create(), and therefore was not
initially configured to use FreeType font functions.

An #hb_face_t face object created with hb_ft_face_create()
is preconfigured for FreeType font functions and does not
require this function to be used.

&lt;note&gt;Note: Internally, this function creates an FT_Face.
&lt;/note&gt;</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="ft_font_set_load_flags" c:identifier="hb_ft_font_set_load_flags" version="1.0.5">
      <doc xml:space="preserve">Sets the FT_Load_Glyph load flags for the specified #hb_font_t.

For more information, see
https://www.freetype.org/freetype2/docs/reference/ft2-base_interface.html#ft_load_xxx</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="load_flags" transfer-ownership="none">
          <doc xml:space="preserve">The FreeType load flags to set</doc>
          <type name="gint" c:type="int"/>
        </parameter>
      </parameters>
    </function>
    <function name="ft_font_unlock_face" c:identifier="hb_ft_font_unlock_face" version="2.6.5">
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="glib_blob_create" c:identifier="hb_glib_blob_create" version="0.9.38">
      <doc xml:space="preserve">Creates an #hb_blob_t blob from the specified
GBytes data structure.</doc>
      <return-value transfer-ownership="full">
        <doc xml:space="preserve">the new #hb_blob_t blob object</doc>
        <type name="blob_t" c:type="hb_blob_t*"/>
      </return-value>
      <parameters>
        <parameter name="gbytes" transfer-ownership="none">
          <doc xml:space="preserve">the GBytes structure to work upon</doc>
          <type name="GLib.Bytes" c:type="GBytes*"/>
        </parameter>
      </parameters>
    </function>
    <function name="glib_get_unicode_funcs" c:identifier="hb_glib_get_unicode_funcs" version="0.9.38">
      <doc xml:space="preserve">Fetches a Unicode-functions structure that is populated
with the appropriate GLib function for each method.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">a pointer to the #hb_unicode_funcs_t Unicode-functions structure</doc>
        <type name="unicode_funcs_t" c:type="hb_unicode_funcs_t*"/>
      </return-value>
    </function>
    <function name="glib_script_from_script" c:identifier="hb_glib_script_from_script" version="0.9.38">
      <doc xml:space="preserve">Fetches the GUnicodeScript identifier that corresponds to the
specified #hb_script_t script.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">the GUnicodeScript identifier found</doc>
        <type name="GLib.UnicodeScript" c:type="GUnicodeScript"/>
      </return-value>
      <parameters>
        <parameter name="script" transfer-ownership="none">
          <doc xml:space="preserve">The #hb_script_t to query</doc>
          <type name="script_t" c:type="hb_script_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="glib_script_to_script" c:identifier="hb_glib_script_to_script" version="0.9.38">
      <doc xml:space="preserve">Fetches the #hb_script_t script that corresponds to the
specified GUnicodeScript identifier.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">the #hb_script_t script found</doc>
        <type name="script_t" c:type="hb_script_t"/>
      </return-value>
      <parameters>
        <parameter name="script" transfer-ownership="none">
          <doc xml:space="preserve">The GUnicodeScript identifier to query</doc>
          <type name="GLib.UnicodeScript" c:type="GUnicodeScript"/>
        </parameter>
      </parameters>
    </function>
    <record name="glyph_extents_t" c:type="hb_glyph_extents_t">
      <doc xml:space="preserve">Glyph extent values, measured in font units.

Note that @height is negative, in coordinate systems that grow up.</doc>
      <field name="x_bearing" writable="1">
        <doc xml:space="preserve">Distance from the x-origin to the left extremum of the glyph.</doc>
        <type name="position_t" c:type="hb_position_t"/>
      </field>
      <field name="y_bearing" writable="1">
        <doc xml:space="preserve">Distance from the top extremum of the glyph to the y-origin.</doc>
        <type name="position_t" c:type="hb_position_t"/>
      </field>
      <field name="width" writable="1">
        <doc xml:space="preserve">Distance from the left extremum of the glyph to the right extremum.</doc>
        <type name="position_t" c:type="hb_position_t"/>
      </field>
      <field name="height" writable="1">
        <doc xml:space="preserve">Distance from the top extremum of the glyph to the bottom extremum.</doc>
        <type name="position_t" c:type="hb_position_t"/>
      </field>
    </record>
    <bitfield name="glyph_flags_t" version="1.5.0" glib:type-name="hb_glyph_flags_t" glib:get-type="hb_gobject_glyph_flags_get_type" c:type="hb_glyph_flags_t">
      <member name="unsafe_to_break" value="1" c:identifier="HB_GLYPH_FLAG_UNSAFE_TO_BREAK" glib:nick="unsafe-to-break" glib:name="HB_GLYPH_FLAG_UNSAFE_TO_BREAK">
        <doc xml:space="preserve">Indicates that if input text is broken at the
				   beginning of the cluster this glyph is part of,
				   then both sides need to be re-shaped, as the
				   result might be different.  On the flip side,
				   it means that when this flag is not present,
				   then it's safe to break the glyph-run at the
				   beginning of this cluster, and the two sides
				   represent the exact same result one would get
				   if breaking input text at the beginning of
				   this cluster and shaping the two sides
				   separately.  This can be used to optimize
				   paragraph layout, by avoiding re-shaping
				   of each line after line-breaking, or limiting
				   the reshaping to a small piece around the
				   breaking point only.</doc>
      </member>
      <member name="defined" value="1" c:identifier="HB_GLYPH_FLAG_DEFINED" glib:nick="defined" glib:name="HB_GLYPH_FLAG_DEFINED">
        <doc xml:space="preserve">All the currently defined flags.</doc>
      </member>
    </bitfield>
    <function name="glyph_info_get_glyph_flags" c:identifier="hb_glyph_info_get_glyph_flags" version="1.5.0">
      <doc xml:space="preserve">Returns glyph flags encoded within a #hb_glyph_info_t.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">The #hb_glyph_flags_t encoded within @info</doc>
        <type name="glyph_flags_t" c:type="hb_glyph_flags_t"/>
      </return-value>
      <parameters>
        <parameter name="info" transfer-ownership="none">
          <doc xml:space="preserve">a #hb_glyph_info_t</doc>
          <type name="glyph_info_t" c:type="const hb_glyph_info_t*"/>
        </parameter>
      </parameters>
    </function>
    <record name="glyph_info_t" c:type="hb_glyph_info_t" glib:type-name="hb_glyph_info_t" glib:get-type="hb_gobject_glyph_info_get_type" c:symbol-prefix="gobject_glyph_info">
      <doc xml:space="preserve">The #hb_glyph_info_t is the structure that holds information about the
glyphs and their relation to input text.</doc>
      <field name="codepoint" writable="1">
        <doc xml:space="preserve">either a Unicode code point (before shaping) or a glyph index
            (after shaping).</doc>
        <type name="codepoint_t" c:type="hb_codepoint_t"/>
      </field>
      <field name="mask" readable="0" private="1">
        <type name="mask_t" c:type="hb_mask_t"/>
      </field>
      <field name="cluster" writable="1">
        <doc xml:space="preserve">the index of the character in the original text that corresponds
          to this #hb_glyph_info_t, or whatever the client passes to
          hb_buffer_add(). More than one #hb_glyph_info_t can have the same
          @cluster value, if they resulted from the same character (e.g. one
          to many glyph substitution), and when more than one character gets
          merged in the same glyph (e.g. many to one glyph substitution) the
          #hb_glyph_info_t will have the smallest cluster value of them.
          By default some characters are merged into the same cluster
          (e.g. combining marks have the same cluster as their bases)
          even if they are separate glyphs, hb_buffer_set_cluster_level()
          allow selecting more fine-grained cluster handling.</doc>
        <type name="guint32" c:type="uint32_t"/>
      </field>
      <field name="var1" readable="0" private="1">
        <type name="var_int_t" c:type="hb_var_int_t"/>
      </field>
      <field name="var2" readable="0" private="1">
        <type name="var_int_t" c:type="hb_var_int_t"/>
      </field>
    </record>
    <record name="glyph_position_t" c:type="hb_glyph_position_t" glib:type-name="hb_glyph_position_t" glib:get-type="hb_gobject_glyph_position_get_type" c:symbol-prefix="gobject_glyph_position">
      <doc xml:space="preserve">The #hb_glyph_position_t is the structure that holds the positions of the
glyph in both horizontal and vertical directions. All positions in
#hb_glyph_position_t are relative to the current point.</doc>
      <field name="x_advance" writable="1">
        <doc xml:space="preserve">how much the line advances after drawing this glyph when setting
            text in horizontal direction.</doc>
        <type name="position_t" c:type="hb_position_t"/>
      </field>
      <field name="y_advance" writable="1">
        <doc xml:space="preserve">how much the line advances after drawing this glyph when setting
            text in vertical direction.</doc>
        <type name="position_t" c:type="hb_position_t"/>
      </field>
      <field name="x_offset" writable="1">
        <doc xml:space="preserve">how much the glyph moves on the X-axis before drawing it, this
           should not affect how much the line advances.</doc>
        <type name="position_t" c:type="hb_position_t"/>
      </field>
      <field name="y_offset" writable="1">
        <doc xml:space="preserve">how much the glyph moves on the Y-axis before drawing it, this
           should not affect how much the line advances.</doc>
        <type name="position_t" c:type="hb_position_t"/>
      </field>
      <field name="var" readable="0" private="1">
        <type name="var_int_t" c:type="hb_var_int_t"/>
      </field>
    </record>
    <docsection name="hb-aat-layout">
      <doc xml:space="preserve">Functions for querying AAT Layout features in the font face.

HarfBuzz supports all of the AAT tables used to implement shaping. Other
AAT tables and their associated features are not supported.</doc>
    </docsection>
    <docsection name="hb-blob">
      <doc xml:space="preserve">Blobs wrap a chunk of binary data to handle lifecycle management of data
while it is passed between client and HarfBuzz.  Blobs are primarily used
to create font faces, but also to access font face tables, as well as
pass around other binary data.</doc>
    </docsection>
    <docsection name="hb-buffer">
      <doc xml:space="preserve">Buffers serve a dual role in HarfBuzz; before shaping, they hold
the input characters that are passed to hb_shape(), and after
shaping they hold the output glyphs.</doc>
    </docsection>
    <docsection name="hb-common">
      <doc xml:space="preserve">Common data types used across HarfBuzz are defined here.</doc>
    </docsection>
    <docsection name="hb-deprecated">
      <doc xml:space="preserve">These API have been deprecated in favor of newer API, or because they
were deemed unnecessary.</doc>
    </docsection>
    <docsection name="hb-face">
      <doc xml:space="preserve">A font face is an object that represents a single face from within a
font family.

More precisely, a font face represents a single face in a binary font file.
Font faces are typically built from a binary blob and a face index.
Font faces are used to create fonts.</doc>
    </docsection>
    <docsection name="hb-font">
      <doc xml:space="preserve">Functions for working with font objects.

A font object represents a font face at a specific size and with
certain other parameters (pixels-per-em, points-per-em, variation
settings) specified. Font objects are created from font face
objects, and are used as input to hb_shape(), among other things.

Client programs can optionally pass in their own functions that
implement the basic, lower-level queries of font objects. This set
of font functions is defined by the virtual methods in
#hb_font_funcs_t.

HarfBuzz provides a built-in set of lightweight default
functions for each method in #hb_font_funcs_t.</doc>
    </docsection>
    <docsection name="hb-ft">
      <doc xml:space="preserve">Functions for using HarfBuzz with the FreeType library.

HarfBuzz supports using FreeType to provide face and
font data.

&lt;note&gt;Note that FreeType is not thread-safe, therefore these
functions are not thread-safe either.&lt;/note&gt;</doc>
    </docsection>
    <docsection name="hb-glib">
      <doc xml:space="preserve">Functions for using HarfBuzz with the GLib library.

HarfBuzz supports using GLib to provide Unicode data, by attaching
GLib functions to the virtual methods in a #hb_unicode_funcs_t function
structure.</doc>
    </docsection>
    <docsection name="hb-gobject">
      <doc xml:space="preserve">Support for using HarfBuzz with the GObject library to provide
type data.

The types and functions listed here are solely a linkage between
HarfBuzz's public data types and the GTypes used by the GObject framework.
HarfBuzz uses GObject introspection to generate its Python bindings
(and potentially other language bindings); client programs should never need
to access the GObject-integration mechanics.

For client programs using the GNOME and GTK software stack, please see the
GLib and FreeType integration pages.</doc>
    </docsection>
    <docsection name="hb-graphite2">
      <doc xml:space="preserve">Functions for using HarfBuzz with fonts that include Graphite features.

For Graphite features to work, you must be sure that HarfBuzz was compiled
with the `graphite2` shaping engine enabled. Currently, the default is to
not enable `graphite2` shaping.</doc>
    </docsection>
    <docsection name="hb-map">
      <doc xml:space="preserve">Map objects are integer-to-integer hash-maps.  Currently they are
not used in the HarfBuzz public API, but are provided for client's
use if desired.</doc>
    </docsection>
    <docsection name="hb-ot-color">
      <doc xml:space="preserve">Functions for fetching color-font information from OpenType font faces.

HarfBuzz supports `COLR`/`CPAL`, `sbix`, `CBDT`, and `SVG` color fonts.</doc>
    </docsection>
    <docsection name="hb-ot-font">
      <doc xml:space="preserve">Functions for using OpenType fonts with hb_shape().  Note that fonts returned
by hb_font_create() default to using these functions, so most clients would
never need to call these functions directly.</doc>
    </docsection>
    <docsection name="hb-ot-layout">
      <doc xml:space="preserve">Functions for querying OpenType Layout features in the font face.</doc>
    </docsection>
    <docsection name="hb-ot-math">
      <doc xml:space="preserve">Functions for fetching mathematics layout data from OpenType fonts.

HarfBuzz itself does not implement a math layout solution. The
functions and types provided can be used by client programs to access
the font data necessary for typesetting OpenType Math layout.</doc>
    </docsection>
    <docsection name="hb-ot-meta">
      <doc xml:space="preserve">Functions for fetching metadata from fonts.</doc>
    </docsection>
    <docsection name="hb-ot-metrics">
      <doc xml:space="preserve">Functions for fetching metrics from fonts.</doc>
    </docsection>
    <docsection name="hb-ot-name">
      <doc xml:space="preserve">Functions for fetching name strings from OpenType fonts.</doc>
    </docsection>
    <docsection name="hb-ot-shape">
      <doc xml:space="preserve">Support functions for OpenType shaping related queries.</doc>
    </docsection>
    <docsection name="hb-ot-var">
      <doc xml:space="preserve">Functions for fetching information about OpenType Variable Fonts.</doc>
    </docsection>
    <docsection name="hb-set">
      <doc xml:space="preserve">Set objects represent a mathematical set of integer values.  They are
used in non-shaping APIs to query certain sets of characters or glyphs,
or other integer values.</doc>
    </docsection>
    <docsection name="hb-shape">
      <doc xml:space="preserve">Shaping is the central operation of HarfBuzz. Shaping operates on buffers,
which are sequences of Unicode characters that use the same font and have
the same text direction, script, and language. After shaping the buffer
contains the output glyphs and their positions.</doc>
    </docsection>
    <docsection name="hb-shape-plan">
      <doc xml:space="preserve">Shape plans are an internal mechanism. Each plan contains state
describing how HarfBuzz will shape a particular text segment, based on
the combination of segment properties and the capabilities in the
font face in use.

Shape plans are not used for shaping directly, but can be queried to
access certain information about how shaping will perform, given a set
of specific input parameters (script, language, direction, features,
etc.).

Most client programs will not need to deal with shape plans directly.</doc>
    </docsection>
    <docsection name="hb-unicode">
      <doc xml:space="preserve">Unicode functions are used to access Unicode character properties.
With these functions, client programs can query various properties from
the Unicode Character Database for any code point, such as General
Category (gc), Script (sc), Canonical Combining Class (ccc), etc.

Client programs can optionally pass in their own Unicode functions
that implement the same queries. The set of functions available is
defined by the virtual methods in #hb_unicode_funcs_t.

HarfBuzz provides built-in default functions for each method in
#hb_unicode_funcs_t.</doc>
    </docsection>
    <docsection name="hb-version">
      <doc xml:space="preserve">These functions and macros allow accessing version of the HarfBuzz
library used at compile- as well as run-time, and to direct code
conditionally based on those versions, again, at compile- or run-time.</doc>
    </docsection>
    <function name="language_from_string" c:identifier="hb_language_from_string" version="0.9.2">
      <doc xml:space="preserve">Converts @str representing a BCP 47 language tag to the corresponding
#hb_language_t.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">
The #hb_language_t corresponding to the BCP 47 language tag.</doc>
        <type name="language_t" c:type="hb_language_t"/>
      </return-value>
      <parameters>
        <parameter name="str" transfer-ownership="none">
          <doc xml:space="preserve">a string representing
      a BCP 47 language tag</doc>
          <array length="1" zero-terminated="0" c:type="const char*">
            <type name="guint8"/>
          </array>
        </parameter>
        <parameter name="len" transfer-ownership="none">
          <doc xml:space="preserve">length of the @str, or -1 if it is %NULL-terminated.</doc>
          <type name="gint" c:type="int"/>
        </parameter>
      </parameters>
    </function>
    <function name="language_get_default" c:identifier="hb_language_get_default" version="0.9.2">
      <doc xml:space="preserve">Fetch the default language from current locale.

&lt;note&gt;Note that the first time this function is called, it calls
"setlocale (LC_CTYPE, nullptr)" to fetch current locale.  The underlying
setlocale function is, in many implementations, NOT threadsafe.  To avoid
problems, call this function once before multiple threads can call it.
This function is only used from hb_buffer_guess_segment_properties() by
HarfBuzz itself.&lt;/note&gt;</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">The default language of the locale as
an #hb_language_t</doc>
        <type name="language_t" c:type="hb_language_t"/>
      </return-value>
    </function>
    <record name="language_t" c:type="hb_language_t" disguised="1">
      <method name="_string" c:identifier="hb_language_to_string" moved-to="language_to_string" version="0.9.2">
        <doc xml:space="preserve">Converts an #hb_language_t to a string.</doc>
        <return-value transfer-ownership="none">
          <doc xml:space="preserve">
A %NULL-terminated string representing the @language. Must not be freed by
the caller.</doc>
          <type name="utf8" c:type="const char*"/>
        </return-value>
        <parameters>
          <instance-parameter name="language" transfer-ownership="none">
            <doc xml:space="preserve">The #hb_language_t to convert</doc>
            <type name="language_t" c:type="hb_language_t"/>
          </instance-parameter>
        </parameters>
      </method>
    </record>
    <function name="language_to_string" c:identifier="hb_language_to_string" version="0.9.2">
      <doc xml:space="preserve">Converts an #hb_language_t to a string.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">
A %NULL-terminated string representing the @language. Must not be freed by
the caller.</doc>
        <type name="utf8" c:type="const char*"/>
      </return-value>
      <parameters>
        <parameter name="language" transfer-ownership="none">
          <doc xml:space="preserve">The #hb_language_t to convert</doc>
          <type name="language_t" c:type="hb_language_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="map_allocation_successful" c:identifier="hb_map_allocation_successful" version="1.7.7">
      <doc xml:space="preserve">Tests whether memory allocation for a set was successful.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%true if allocation succeeded, false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="map" transfer-ownership="none">
          <doc xml:space="preserve">A map</doc>
          <type name="map_t" c:type="const hb_map_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="map_clear" c:identifier="hb_map_clear" version="1.7.7">
      <doc xml:space="preserve">Clears out the contents of @map.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="map" transfer-ownership="none">
          <doc xml:space="preserve">A map</doc>
          <type name="map_t" c:type="hb_map_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="map_create" c:identifier="hb_map_create" version="1.7.7">
      <doc xml:space="preserve">Creates a new, initially empty map.</doc>
      <return-value transfer-ownership="full">
        <doc xml:space="preserve">The new #hb_map_t</doc>
        <type name="map_t" c:type="hb_map_t*"/>
      </return-value>
    </function>
    <function name="map_del" c:identifier="hb_map_del" version="1.7.7">
      <doc xml:space="preserve">Removes @key and its stored value from @map.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="map" transfer-ownership="none">
          <doc xml:space="preserve">A map</doc>
          <type name="map_t" c:type="hb_map_t*"/>
        </parameter>
        <parameter name="key" transfer-ownership="none">
          <doc xml:space="preserve">The key to delete</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="map_destroy" c:identifier="hb_map_destroy" version="1.7.7" introspectable="0">
      <doc xml:space="preserve">Decreases the reference count on a map. When
the reference count reaches zero, the map is
destroyed, freeing all memory.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="map" transfer-ownership="none">
          <doc xml:space="preserve">A map</doc>
          <type name="map_t" c:type="hb_map_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="map_get" c:identifier="hb_map_get" version="1.7.7">
      <doc xml:space="preserve">Fetches the value stored for @key in @map.</doc>
      <return-value transfer-ownership="none">
        <type name="codepoint_t" c:type="hb_codepoint_t"/>
      </return-value>
      <parameters>
        <parameter name="map" transfer-ownership="none">
          <doc xml:space="preserve">A map</doc>
          <type name="map_t" c:type="const hb_map_t*"/>
        </parameter>
        <parameter name="key" transfer-ownership="none">
          <doc xml:space="preserve">The key to query</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="map_get_empty" c:identifier="hb_map_get_empty" version="1.7.7">
      <doc xml:space="preserve">Fetches the singleton empty #hb_map_t.</doc>
      <return-value transfer-ownership="full">
        <doc xml:space="preserve">The empty #hb_map_t</doc>
        <type name="map_t" c:type="hb_map_t*"/>
      </return-value>
    </function>
    <function name="map_get_population" c:identifier="hb_map_get_population" version="1.7.7">
      <doc xml:space="preserve">Returns the number of key-value pairs in the map.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">The population of @map</doc>
        <type name="guint" c:type="unsigned int"/>
      </return-value>
      <parameters>
        <parameter name="map" transfer-ownership="none">
          <doc xml:space="preserve">A map</doc>
          <type name="map_t" c:type="const hb_map_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="map_get_user_data" c:identifier="hb_map_get_user_data" version="1.7.7" introspectable="0">
      <doc xml:space="preserve">Fetches the user data associated with the specified key,
attached to the specified map.</doc>
      <return-value transfer-ownership="none" nullable="1">
        <doc xml:space="preserve">A pointer to the user data</doc>
        <type name="gpointer" c:type="void*"/>
      </return-value>
      <parameters>
        <parameter name="map" transfer-ownership="none">
          <doc xml:space="preserve">A map</doc>
          <type name="map_t" c:type="hb_map_t*"/>
        </parameter>
        <parameter name="key" transfer-ownership="none">
          <doc xml:space="preserve">The user-data key to query</doc>
          <type name="user_data_key_t" c:type="hb_user_data_key_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="map_has" c:identifier="hb_map_has" version="1.7.7">
      <doc xml:space="preserve">Tests whether @key is an element of @map.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%true if @key is found in @map, false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="map" transfer-ownership="none">
          <doc xml:space="preserve">A map</doc>
          <type name="map_t" c:type="const hb_map_t*"/>
        </parameter>
        <parameter name="key" transfer-ownership="none">
          <doc xml:space="preserve">The key to query</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="map_is_empty" c:identifier="hb_map_is_empty" version="1.7.7">
      <doc xml:space="preserve">Tests whether @map is empty (contains no elements).</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%true if @map is empty</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="map" transfer-ownership="none">
          <doc xml:space="preserve">A map</doc>
          <type name="map_t" c:type="const hb_map_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="map_reference" c:identifier="hb_map_reference" version="1.7.7" introspectable="0">
      <doc xml:space="preserve">Increases the reference count on a map.</doc>
      <return-value transfer-ownership="full">
        <doc xml:space="preserve">The map</doc>
        <type name="map_t" c:type="hb_map_t*"/>
      </return-value>
      <parameters>
        <parameter name="map" transfer-ownership="none">
          <doc xml:space="preserve">A map</doc>
          <type name="map_t" c:type="hb_map_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="map_set" c:identifier="hb_map_set" version="1.7.7">
      <doc xml:space="preserve">Stores @key:@value in the map.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="map" transfer-ownership="none">
          <doc xml:space="preserve">A map</doc>
          <type name="map_t" c:type="hb_map_t*"/>
        </parameter>
        <parameter name="key" transfer-ownership="none">
          <doc xml:space="preserve">The key to store in the map</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="value" transfer-ownership="none">
          <doc xml:space="preserve">The value to store for @key</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="map_set_user_data" c:identifier="hb_map_set_user_data" version="1.7.7" introspectable="0">
      <doc xml:space="preserve">Attaches a user-data key/data pair to the specified map.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%true if success, %false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="map" transfer-ownership="none">
          <doc xml:space="preserve">A map</doc>
          <type name="map_t" c:type="hb_map_t*"/>
        </parameter>
        <parameter name="key" transfer-ownership="none">
          <doc xml:space="preserve">The user-data key to set</doc>
          <type name="user_data_key_t" c:type="hb_user_data_key_t*"/>
        </parameter>
        <parameter name="data" transfer-ownership="none" nullable="1" allow-none="1">
          <doc xml:space="preserve">A pointer to the user data to set</doc>
          <type name="gpointer" c:type="void*"/>
        </parameter>
        <parameter name="destroy" transfer-ownership="none">
          <doc xml:space="preserve">A callback to call when @data is not needed anymore</doc>
          <type name="destroy_func_t" c:type="hb_destroy_func_t"/>
        </parameter>
        <parameter name="replace" transfer-ownership="none">
          <doc xml:space="preserve">Whether to replace an existing data with the same key</doc>
          <type name="bool_t" c:type="hb_bool_t"/>
        </parameter>
      </parameters>
    </function>
    <record name="map_t" c:type="hb_map_t" glib:type-name="hb_map_t" glib:get-type="hb_gobject_map_get_type" c:symbol-prefix="gobject_map">
      <doc xml:space="preserve">Data type for holding integer-to-integer hash maps.</doc>
    </record>
    <enumeration name="memory_mode_t" glib:type-name="hb_memory_mode_t" glib:get-type="hb_gobject_memory_mode_get_type" c:type="hb_memory_mode_t">
      <doc xml:space="preserve">@HB_MEMORY_MODE_DUPLICATE
@HB_MEMORY_MODE_READONLY
@HB_MEMORY_MODE_WRITABLE
@HB_MEMORY_MODE_READONLY_MAY_MAKE_WRITABLE
Data type holding the memory modes available to
client programs.

Regarding these various memory-modes:

- In no case shall the HarfBuzz client modify memory
  that is passed to HarfBuzz in a blob.  If there is
  any such possibility, @HB_MEMORY_MODE_DUPLICATE should be used
  such that HarfBuzz makes a copy immediately,

- Use @HB_MEMORY_MODE_READONLY otherwise, unless you really really
  really know what you are doing,

- @HB_MEMORY_MODE_WRITABLE is appropriate if you really made a
  copy of data solely for the purpose of passing to
  HarfBuzz and doing that just once (no reuse!),

- If the font is mmap()ed, it's okay to use
  @HB_MEMORY_READONLY_MAY_MAKE_WRITABLE, however, using that mode
  correctly is very tricky.  Use @HB_MEMORY_MODE_READONLY instead.</doc>
      <member name="duplicate" value="0" c:identifier="HB_MEMORY_MODE_DUPLICATE" glib:nick="duplicate" glib:name="HB_MEMORY_MODE_DUPLICATE">
      </member>
      <member name="readonly" value="1" c:identifier="HB_MEMORY_MODE_READONLY" glib:nick="readonly" glib:name="HB_MEMORY_MODE_READONLY">
      </member>
      <member name="writable" value="2" c:identifier="HB_MEMORY_MODE_WRITABLE" glib:nick="writable" glib:name="HB_MEMORY_MODE_WRITABLE">
      </member>
      <member name="readonly_may_make_writable" value="3" c:identifier="HB_MEMORY_MODE_READONLY_MAY_MAKE_WRITABLE" glib:nick="readonly-may-make-writable" glib:name="HB_MEMORY_MODE_READONLY_MAY_MAKE_WRITABLE">
      </member>
    </enumeration>
    <function name="ot_color_glyph_get_layers" c:identifier="hb_ot_color_glyph_get_layers" version="2.1.0">
      <doc xml:space="preserve">Fetches a list of all color layers for the specified glyph index in the specified
face. The list returned will begin at the offset provided.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">Total number of layers available for the glyph index queried</doc>
        <type name="guint" c:type="unsigned int"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">#hb_face_t to work upon</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="glyph" transfer-ownership="none">
          <doc xml:space="preserve">The glyph index to query</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="start_offset" transfer-ownership="none">
          <doc xml:space="preserve">offset of the first layer to retrieve</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="layer_count" direction="out" caller-allocates="0" transfer-ownership="full" optional="1" allow-none="1">
          <doc xml:space="preserve">Input = the maximum number of layers to return;
        Output = the actual number of layers returned (may be zero)</doc>
          <type name="guint" c:type="unsigned int*"/>
        </parameter>
        <parameter name="layers" direction="out" caller-allocates="1" transfer-ownership="none" nullable="1">
          <doc xml:space="preserve">The array of layers found</doc>
          <array length="3" zero-terminated="0" c:type="hb_ot_color_layer_t*">
            <type name="ot_color_layer_t" c:type="hb_ot_color_layer_t"/>
          </array>
        </parameter>
      </parameters>
    </function>
    <function name="ot_color_glyph_reference_png" c:identifier="hb_ot_color_glyph_reference_png" version="2.1.0">
      <doc xml:space="preserve">Fetches the PNG image for a glyph. This function takes a font object, not a face object,
as input. To get an optimally sized PNG blob, the UPEM value must be set on the @font
object. If UPEM is unset, the blob returned will be the largest PNG available.</doc>
      <return-value transfer-ownership="full">
        <doc xml:space="preserve">An #hb_blob_t containing the PNG image for the glyph, if available</doc>
        <type name="blob_t" c:type="hb_blob_t*"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="glyph" transfer-ownership="none">
          <doc xml:space="preserve">a glyph index</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_color_glyph_reference_svg" c:identifier="hb_ot_color_glyph_reference_svg" version="2.1.0">
      <doc xml:space="preserve">Fetches the SVG document for a glyph. The blob may be either plain text or gzip-encoded.</doc>
      <return-value transfer-ownership="full">
        <doc xml:space="preserve">An #hb_blob_t containing the SVG document of the glyph, if available</doc>
        <type name="blob_t" c:type="hb_blob_t*"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">#hb_face_t to work upon</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="glyph" transfer-ownership="none">
          <doc xml:space="preserve">a svg glyph index</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_color_has_layers" c:identifier="hb_ot_color_has_layers" version="2.1.0">
      <doc xml:space="preserve">Tests whether a face includes any `COLR` color layers.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">true if data found, false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">#hb_face_t to work upon</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_color_has_palettes" c:identifier="hb_ot_color_has_palettes" version="2.1.0">
      <doc xml:space="preserve">Tests whether a face includes a `CPAL` color-palette table.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">true if data found, false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">#hb_face_t to work upon</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_color_has_png" c:identifier="hb_ot_color_has_png" version="2.1.0">
      <doc xml:space="preserve">Tests whether a face has PNG glyph images (either in `CBDT` or `sbix` tables).</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">true if data found, false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">#hb_face_t to work upon</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_color_has_svg" c:identifier="hb_ot_color_has_svg" version="2.1.0">
      <doc xml:space="preserve">Tests whether a face includes any `SVG` glyph images.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">true if data found, false otherwise.</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">#hb_face_t to work upon.</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
      </parameters>
    </function>
    <record name="ot_color_layer_t" c:type="hb_ot_color_layer_t" version="2.1.0">
      <doc xml:space="preserve">Pairs of glyph and color index.</doc>
      <field name="glyph" writable="1">
        <type name="codepoint_t" c:type="hb_codepoint_t"/>
      </field>
      <field name="color_index" writable="1">
        <type name="guint" c:type="unsigned int"/>
      </field>
    </record>
    <function name="ot_color_palette_color_get_name_id" c:identifier="hb_ot_color_palette_color_get_name_id" version="2.1.0">
      <doc xml:space="preserve">Fetches the `name` table Name ID that provides display names for
the specificed color in a face's `CPAL` color palette.

Display names can be generic (e.g., "Background") or specific
(e.g., "Eye color").</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">the Name ID found for the color.</doc>
        <type name="ot_name_id_t" c:type="hb_ot_name_id_t"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">#hb_face_t to work upon</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="color_index" transfer-ownership="none">
          <doc xml:space="preserve">The index of the color</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
      </parameters>
    </function>
    <bitfield name="ot_color_palette_flags_t" version="2.1.0" glib:type-name="hb_ot_color_palette_flags_t" glib:get-type="hb_gobject_ot_color_palette_flags_get_type" c:type="hb_ot_color_palette_flags_t">
      <member name="default" value="0" c:identifier="HB_OT_COLOR_PALETTE_FLAG_DEFAULT" glib:nick="default" glib:name="HB_OT_COLOR_PALETTE_FLAG_DEFAULT">
        <doc xml:space="preserve">Default indicating that there is nothing special
  to note about a color palette.</doc>
      </member>
      <member name="usable_with_light_background" value="1" c:identifier="HB_OT_COLOR_PALETTE_FLAG_USABLE_WITH_LIGHT_BACKGROUND" glib:nick="usable-with-light-background" glib:name="HB_OT_COLOR_PALETTE_FLAG_USABLE_WITH_LIGHT_BACKGROUND">
        <doc xml:space="preserve">Flag indicating that the color
  palette is appropriate to use when displaying the font on a light background such as white.</doc>
      </member>
      <member name="usable_with_dark_background" value="2" c:identifier="HB_OT_COLOR_PALETTE_FLAG_USABLE_WITH_DARK_BACKGROUND" glib:nick="usable-with-dark-background" glib:name="HB_OT_COLOR_PALETTE_FLAG_USABLE_WITH_DARK_BACKGROUND">
        <doc xml:space="preserve">Flag indicating that the color
  palette is appropriate to use when displaying the font on a dark background such as black.</doc>
      </member>
    </bitfield>
    <function name="ot_color_palette_get_colors" c:identifier="hb_ot_color_palette_get_colors" version="2.1.0">
      <doc xml:space="preserve">Fetches a list of the colors in a color palette.

After calling this function, @colors will be filled with the palette
colors. If @colors is NULL, the function will just return the number
of total colors without storing any actual colors; this can be used
for allocating a buffer of suitable size before calling
hb_ot_color_palette_get_colors() a second time.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">the total number of colors in the palette</doc>
        <type name="guint" c:type="unsigned int"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">#hb_face_t to work upon</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="palette_index" transfer-ownership="none">
          <doc xml:space="preserve">the index of the color palette to query</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="start_offset" transfer-ownership="none">
          <doc xml:space="preserve">offset of the first color to retrieve</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="color_count" direction="out" caller-allocates="0" transfer-ownership="full" optional="1" allow-none="1">
          <doc xml:space="preserve">Input = the maximum number of colors to return;
              Output = the actual number of colors returned (may be zero)</doc>
          <type name="guint" c:type="unsigned int*"/>
        </parameter>
        <parameter name="colors" direction="out" caller-allocates="0" transfer-ownership="full" nullable="1">
          <doc xml:space="preserve">The array of #hb_color_t records found</doc>
          <array length="3" zero-terminated="0" c:type="hb_color_t*">
            <type name="color_t" c:type="hb_color_t"/>
          </array>
        </parameter>
      </parameters>
    </function>
    <function name="ot_color_palette_get_count" c:identifier="hb_ot_color_palette_get_count" version="2.1.0">
      <doc xml:space="preserve">Fetches the number of color palettes in a face.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">the number of palettes found</doc>
        <type name="guint" c:type="unsigned int"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">#hb_face_t to work upon</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_color_palette_get_flags" c:identifier="hb_ot_color_palette_get_flags" version="2.1.0">
      <doc xml:space="preserve">Fetches the flags defined for a color palette.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">the #hb_ot_color_palette_flags_t of the requested color palette</doc>
        <type name="ot_color_palette_flags_t" c:type="hb_ot_color_palette_flags_t"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">#hb_face_t to work upon</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="palette_index" transfer-ownership="none">
          <doc xml:space="preserve">The index of the color palette</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_color_palette_get_name_id" c:identifier="hb_ot_color_palette_get_name_id" version="2.1.0">
      <doc xml:space="preserve">Fetches the `name` table Name ID that provides display names for
a `CPAL` color palette.

Palette display names can be generic (e.g., "Default") or provide
specific, themed names (e.g., "Spring", "Summer", "Fall", and "Winter").</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">the Named ID found for the palette.
If the requested palette has no name the result is #HB_OT_NAME_ID_INVALID.</doc>
        <type name="ot_name_id_t" c:type="hb_ot_name_id_t"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">#hb_face_t to work upon</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="palette_index" transfer-ownership="none">
          <doc xml:space="preserve">The index of the color palette</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_font_set_funcs" c:identifier="hb_ot_font_set_funcs" version="0.9.28">
      <doc xml:space="preserve">Sets the font functions to use when working with @font.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
      </parameters>
    </function>
    <enumeration name="ot_layout_baseline_tag_t" version="2.6.0" glib:type-name="hb_ot_layout_baseline_tag_t" glib:get-type="hb_gobject_ot_layout_baseline_tag_get_type" c:type="hb_ot_layout_baseline_tag_t">
      <doc xml:space="preserve">Baseline tags from https://docs.microsoft.com/en-us/typography/opentype/spec/baselinetags</doc>
      <member name="roman" value="1919905134" c:identifier="HB_OT_LAYOUT_BASELINE_TAG_ROMAN" glib:nick="roman" glib:name="HB_OT_LAYOUT_BASELINE_TAG_ROMAN">
        <doc xml:space="preserve">The baseline used by alphabetic scripts such as Latin, Cyrillic and Greek.
In vertical writing mode, the alphabetic baseline for characters rotated 90 degrees clockwise.
(This would not apply to alphabetic characters that remain upright in vertical writing mode, since these
characters are not rotated.)</doc>
      </member>
      <member name="hanging" value="1751215719" c:identifier="HB_OT_LAYOUT_BASELINE_TAG_HANGING" glib:nick="hanging" glib:name="HB_OT_LAYOUT_BASELINE_TAG_HANGING">
        <doc xml:space="preserve">The hanging baseline. In horizontal direction, this is the horizontal
line from which syllables seem, to hang in Tibetan and other similar scripts. In vertical writing mode,
for Tibetan (or some other similar script) characters rotated 90 degrees clockwise.</doc>
      </member>
      <member name="ideo_face_bottom_or_left" value="1768121954" c:identifier="HB_OT_LAYOUT_BASELINE_TAG_IDEO_FACE_BOTTOM_OR_LEFT" glib:nick="ideo-face-bottom-or-left" glib:name="HB_OT_LAYOUT_BASELINE_TAG_IDEO_FACE_BOTTOM_OR_LEFT">
        <doc xml:space="preserve">Ideographic character face bottom or left edge,
if the direction is horizontal or vertical, respectively.</doc>
      </member>
      <member name="ideo_face_top_or_right" value="1768121972" c:identifier="HB_OT_LAYOUT_BASELINE_TAG_IDEO_FACE_TOP_OR_RIGHT" glib:nick="ideo-face-top-or-right" glib:name="HB_OT_LAYOUT_BASELINE_TAG_IDEO_FACE_TOP_OR_RIGHT">
        <doc xml:space="preserve">Ideographic character face top or right edge,
if the direction is horizontal or vertical, respectively.</doc>
      </member>
      <member name="ideo_embox_bottom_or_left" value="1768187247" c:identifier="HB_OT_LAYOUT_BASELINE_TAG_IDEO_EMBOX_BOTTOM_OR_LEFT" glib:nick="ideo-embox-bottom-or-left" glib:name="HB_OT_LAYOUT_BASELINE_TAG_IDEO_EMBOX_BOTTOM_OR_LEFT">
        <doc xml:space="preserve">Ideographic em-box bottom or left edge,
if the direction is horizontal or vertical, respectively.</doc>
      </member>
      <member name="ideo_embox_top_or_right" value="1768191088" c:identifier="HB_OT_LAYOUT_BASELINE_TAG_IDEO_EMBOX_TOP_OR_RIGHT" glib:nick="ideo-embox-top-or-right" glib:name="HB_OT_LAYOUT_BASELINE_TAG_IDEO_EMBOX_TOP_OR_RIGHT">
        <doc xml:space="preserve">Ideographic em-box top or right edge baseline,
if the direction is horizontal or vertical, respectively.</doc>
      </member>
      <member name="math" value="1835103336" c:identifier="HB_OT_LAYOUT_BASELINE_TAG_MATH" glib:nick="math" glib:name="HB_OT_LAYOUT_BASELINE_TAG_MATH">
        <doc xml:space="preserve">The baseline about which mathematical characters are centered.
In vertical writing mode when mathematical characters rotated 90 degrees clockwise, are centered.</doc>
      </member>
    </enumeration>
    <function name="ot_layout_collect_features" c:identifier="hb_ot_layout_collect_features" version="1.8.5">
      <doc xml:space="preserve">Fetches a list of all feature indexes in the specified face's GSUB table
or GPOS table, underneath the specified scripts, languages, and features.
If no list of scripts is provided, all scripts will be queried. If no list
of languages is provided, all languages will be queried. If no list of
features is provided, all features will be queried.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">#hb_face_t to work upon</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="table_tag" transfer-ownership="none">
          <doc xml:space="preserve">HB_OT_TAG_GSUB or HB_OT_TAG_GPOS</doc>
          <type name="tag_t" c:type="hb_tag_t"/>
        </parameter>
        <parameter name="scripts" transfer-ownership="none">
          <doc xml:space="preserve">The array of scripts to collect features for</doc>
          <type name="tag_t" c:type="const hb_tag_t*"/>
        </parameter>
        <parameter name="languages" transfer-ownership="none">
          <doc xml:space="preserve">The array of languages to collect features for</doc>
          <type name="tag_t" c:type="const hb_tag_t*"/>
        </parameter>
        <parameter name="features" transfer-ownership="none">
          <doc xml:space="preserve">The array of features to collect</doc>
          <type name="tag_t" c:type="const hb_tag_t*"/>
        </parameter>
        <parameter name="feature_indexes" direction="out" caller-allocates="1" transfer-ownership="none">
          <doc xml:space="preserve">The array of feature indexes found for the query</doc>
          <type name="set_t" c:type="hb_set_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_layout_collect_lookups" c:identifier="hb_ot_layout_collect_lookups" version="0.9.8">
      <doc xml:space="preserve">Fetches a list of all feature-lookup indexes in the specified face's GSUB
table or GPOS table, underneath the specified scripts, languages, and
features. If no list of scripts is provided, all scripts will be queried.
If no list of languages is provided, all languages will be queried. If no
list of features is provided, all features will be queried.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">#hb_face_t to work upon</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="table_tag" transfer-ownership="none">
          <doc xml:space="preserve">HB_OT_TAG_GSUB or HB_OT_TAG_GPOS</doc>
          <type name="tag_t" c:type="hb_tag_t"/>
        </parameter>
        <parameter name="scripts" transfer-ownership="none">
          <doc xml:space="preserve">The array of scripts to collect lookups for</doc>
          <type name="tag_t" c:type="const hb_tag_t*"/>
        </parameter>
        <parameter name="languages" transfer-ownership="none">
          <doc xml:space="preserve">The array of languages to collect lookups for</doc>
          <type name="tag_t" c:type="const hb_tag_t*"/>
        </parameter>
        <parameter name="features" transfer-ownership="none">
          <doc xml:space="preserve">The array of features to collect lookups for</doc>
          <type name="tag_t" c:type="const hb_tag_t*"/>
        </parameter>
        <parameter name="lookup_indexes" direction="out" caller-allocates="1" transfer-ownership="none">
          <doc xml:space="preserve">The array of lookup indexes found for the query</doc>
          <type name="set_t" c:type="hb_set_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_layout_feature_get_characters" c:identifier="hb_ot_layout_feature_get_characters" version="2.0.0">
      <doc xml:space="preserve">Fetches a list of the characters defined as having a variant under the specified
"Character Variant" ("cvXX") feature tag.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">Number of total sample characters in the cvXX feature.</doc>
        <type name="guint" c:type="unsigned int"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">#hb_face_t to work upon</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="table_tag" transfer-ownership="none">
          <doc xml:space="preserve">table tag to query, "GSUB" or "GPOS".</doc>
          <type name="tag_t" c:type="hb_tag_t"/>
        </parameter>
        <parameter name="feature_index" transfer-ownership="none">
          <doc xml:space="preserve">index of feature to query.</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="start_offset" transfer-ownership="none">
          <doc xml:space="preserve">offset of the first character to retrieve</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="char_count" direction="out" caller-allocates="0" transfer-ownership="full" nullable="1">
          <doc xml:space="preserve">Input = the maximum number of characters to return;
             Output = the actual number of characters returned (may be zero)</doc>
          <type name="guint" c:type="unsigned int*"/>
        </parameter>
        <parameter name="characters" direction="out" caller-allocates="1" transfer-ownership="none">
          <doc xml:space="preserve">A buffer pointer.
             The Unicode codepoints of the characters for which this feature provides
              glyph variants.</doc>
          <array length="4" zero-terminated="0" c:type="hb_codepoint_t*">
            <type name="codepoint_t" c:type="hb_codepoint_t"/>
          </array>
        </parameter>
      </parameters>
    </function>
    <function name="ot_layout_feature_get_lookups" c:identifier="hb_ot_layout_feature_get_lookups" version="0.9.7">
      <doc xml:space="preserve">Fetches a list of all lookups enumerated for the specified feature, in
the specified face's GSUB table or GPOS table. The list returned will
begin at the offset provided.</doc>
      <return-value transfer-ownership="none">
        <type name="guint" c:type="unsigned int"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">#hb_face_t to work upon</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="table_tag" transfer-ownership="none">
          <doc xml:space="preserve">HB_OT_TAG_GSUB or HB_OT_TAG_GPOS</doc>
          <type name="tag_t" c:type="hb_tag_t"/>
        </parameter>
        <parameter name="feature_index" transfer-ownership="none">
          <doc xml:space="preserve">The index of the requested feature</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="start_offset" transfer-ownership="none">
          <doc xml:space="preserve">offset of the first lookup to retrieve</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="lookup_count" direction="out" caller-allocates="0" transfer-ownership="full" nullable="1">
          <doc xml:space="preserve">Input = the maximum number of lookups to return;
               Output = the actual number of lookups returned (may be zero)</doc>
          <type name="guint" c:type="unsigned int*"/>
        </parameter>
        <parameter name="lookup_indexes" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The array of lookup indexes found for the query</doc>
          <array length="4" zero-terminated="0" c:type="unsigned int*">
            <type name="guint" c:type="unsigned int"/>
          </array>
        </parameter>
      </parameters>
    </function>
    <function name="ot_layout_feature_get_name_ids" c:identifier="hb_ot_layout_feature_get_name_ids" version="2.0.0">
      <doc xml:space="preserve">Fetches name indices from feature parameters for "Stylistic Set" ('ssXX') or
"Character Variant" ('cvXX') features.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%true if data found, false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">#hb_face_t to work upon</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="table_tag" transfer-ownership="none">
          <doc xml:space="preserve">table tag to query, "GSUB" or "GPOS".</doc>
          <type name="tag_t" c:type="hb_tag_t"/>
        </parameter>
        <parameter name="feature_index" transfer-ownership="none">
          <doc xml:space="preserve">index of feature to query.</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="label_id" direction="out" caller-allocates="0" transfer-ownership="full" optional="1" allow-none="1">
          <doc xml:space="preserve">The &#x2018;name&#x2019; table name ID that specifies a string
           for a user-interface label for this feature. (May be NULL.)</doc>
          <type name="ot_name_id_t" c:type="hb_ot_name_id_t*"/>
        </parameter>
        <parameter name="tooltip_id" direction="out" caller-allocates="0" transfer-ownership="full" optional="1" allow-none="1">
          <doc xml:space="preserve">The &#x2018;name&#x2019; table name ID that specifies a string
             that an application can use for tooltip text for this
             feature. (May be NULL.)</doc>
          <type name="ot_name_id_t" c:type="hb_ot_name_id_t*"/>
        </parameter>
        <parameter name="sample_id" direction="out" caller-allocates="0" transfer-ownership="full" optional="1" allow-none="1">
          <doc xml:space="preserve">The &#x2018;name&#x2019; table name ID that specifies sample text
            that illustrates the effect of this feature. (May be NULL.)</doc>
          <type name="ot_name_id_t" c:type="hb_ot_name_id_t*"/>
        </parameter>
        <parameter name="num_named_parameters" direction="out" caller-allocates="0" transfer-ownership="full" optional="1" allow-none="1">
          <doc xml:space="preserve">Number of named parameters. (May be zero.)</doc>
          <type name="guint" c:type="unsigned int*"/>
        </parameter>
        <parameter name="first_param_id" direction="out" caller-allocates="0" transfer-ownership="full" optional="1" allow-none="1">
          <doc xml:space="preserve">The first &#x2018;name&#x2019; table name ID used to specify
                 strings for user-interface labels for the feature
                 parameters. (Must be zero if numParameters is zero.)</doc>
          <type name="ot_name_id_t" c:type="hb_ot_name_id_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_layout_feature_with_variations_get_lookups" c:identifier="hb_ot_layout_feature_with_variations_get_lookups">
      <doc xml:space="preserve">Fetches a list of all lookups enumerated for the specified feature, in
the specified face's GSUB table or GPOS table, enabled at the specified
variations index. The list returned will begin at the offset provided.</doc>
      <return-value transfer-ownership="none">
        <type name="guint" c:type="unsigned int"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">#hb_face_t to work upon</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="table_tag" transfer-ownership="none">
          <doc xml:space="preserve">HB_OT_TAG_GSUB or HB_OT_TAG_GPOS</doc>
          <type name="tag_t" c:type="hb_tag_t"/>
        </parameter>
        <parameter name="feature_index" transfer-ownership="none">
          <doc xml:space="preserve">The index of the feature to query</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="variations_index" transfer-ownership="none">
          <doc xml:space="preserve">The index of the feature variation to query</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="start_offset" transfer-ownership="none">
          <doc xml:space="preserve">offset of the first lookup to retrieve</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="lookup_count" direction="out" caller-allocates="0" transfer-ownership="full" nullable="1">
          <doc xml:space="preserve">Input = the maximum number of lookups to return;
               Output = the actual number of lookups returned (may be zero)</doc>
          <type name="guint" c:type="unsigned int*"/>
        </parameter>
        <parameter name="lookup_indexes" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The array of lookups found for the query</doc>
          <array length="5" zero-terminated="0" c:type="unsigned int*">
            <type name="guint" c:type="unsigned int"/>
          </array>
        </parameter>
      </parameters>
    </function>
    <function name="ot_layout_get_attach_points" c:identifier="hb_ot_layout_get_attach_points">
      <doc xml:space="preserve">Fetches a list of all attachment points for the specified glyph in the GDEF
table of the face. The list returned will begin at the offset provided.

Useful if the client program wishes to cache the list.</doc>
      <return-value transfer-ownership="none">
        <type name="guint" c:type="unsigned int"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">The #hb_face_t to work on</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="glyph" transfer-ownership="none">
          <doc xml:space="preserve">The #hb_codepoint_t code point to query</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="start_offset" transfer-ownership="none">
          <doc xml:space="preserve">offset of the first attachment point to retrieve</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="point_count" direction="out" caller-allocates="0" transfer-ownership="full" nullable="1">
          <doc xml:space="preserve">Input = the maximum number of attachment points to return;
              Output = the actual number of attachment points returned (may be zero)</doc>
          <type name="guint" c:type="unsigned int*"/>
        </parameter>
        <parameter name="point_array" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The array of attachment points found for the query</doc>
          <array length="3" zero-terminated="0" c:type="unsigned int*">
            <type name="guint" c:type="unsigned int"/>
          </array>
        </parameter>
      </parameters>
    </function>
    <function name="ot_layout_get_baseline" c:identifier="hb_ot_layout_get_baseline" version="2.6.0">
      <doc xml:space="preserve">Fetches a baseline value from the face.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">if found baseline value in the font.</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">a font</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="baseline_tag" transfer-ownership="none">
          <doc xml:space="preserve">a baseline tag</doc>
          <type name="ot_layout_baseline_tag_t" c:type="hb_ot_layout_baseline_tag_t"/>
        </parameter>
        <parameter name="direction" transfer-ownership="none">
          <doc xml:space="preserve">text direction.</doc>
          <type name="direction_t" c:type="hb_direction_t"/>
        </parameter>
        <parameter name="script_tag" transfer-ownership="none">
          <doc xml:space="preserve">script tag.</doc>
          <type name="tag_t" c:type="hb_tag_t"/>
        </parameter>
        <parameter name="language_tag" transfer-ownership="none">
          <doc xml:space="preserve">language tag.</doc>
          <type name="tag_t" c:type="hb_tag_t"/>
        </parameter>
        <parameter name="coord" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">baseline value if found.</doc>
          <type name="position_t" c:type="hb_position_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_layout_get_glyph_class" c:identifier="hb_ot_layout_get_glyph_class" version="0.9.7">
      <doc xml:space="preserve">Fetches the GDEF class of the requested glyph in the specified face.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">The #hb_ot_layout_glyph_class_t glyph class of the given code
point in the GDEF table of the face.</doc>
        <type name="ot_layout_glyph_class_t" c:type="hb_ot_layout_glyph_class_t"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">The #hb_face_t to work on</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="glyph" transfer-ownership="none">
          <doc xml:space="preserve">The #hb_codepoint_t code point to query</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_layout_get_glyphs_in_class" c:identifier="hb_ot_layout_get_glyphs_in_class" version="0.9.7">
      <doc xml:space="preserve">Retrieves the set of all glyphs from the face that belong to the requested
glyph class in the face's GDEF table.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">The #hb_face_t to work on</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="klass" transfer-ownership="none">
          <doc xml:space="preserve">The #hb_ot_layout_glyph_class_t GDEF class to retrieve</doc>
          <type name="ot_layout_glyph_class_t" c:type="hb_ot_layout_glyph_class_t"/>
        </parameter>
        <parameter name="glyphs" direction="out" caller-allocates="1" transfer-ownership="none">
          <doc xml:space="preserve">The #hb_set_t set of all glyphs belonging to the requested
         class.</doc>
          <type name="set_t" c:type="hb_set_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_layout_get_ligature_carets" c:identifier="hb_ot_layout_get_ligature_carets">
      <doc xml:space="preserve">Fetches a list of the caret positions defined for a ligature glyph in the GDEF
table of the font. The list returned will begin at the offset provided.</doc>
      <return-value transfer-ownership="none">
        <type name="guint" c:type="unsigned int"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">The #hb_font_t to work on</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="direction" transfer-ownership="none">
          <doc xml:space="preserve">The #hb_direction_t text direction to use</doc>
          <type name="direction_t" c:type="hb_direction_t"/>
        </parameter>
        <parameter name="glyph" transfer-ownership="none">
          <doc xml:space="preserve">The #hb_codepoint_t code point to query</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="start_offset" transfer-ownership="none">
          <doc xml:space="preserve">offset of the first caret position to retrieve</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="caret_count" direction="out" caller-allocates="0" transfer-ownership="full" nullable="1">
          <doc xml:space="preserve">Input = the maximum number of caret positions to return;
              Output = the actual number of caret positions returned (may be zero)</doc>
          <type name="guint" c:type="unsigned int*"/>
        </parameter>
        <parameter name="caret_array" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The array of caret positions found for the query</doc>
          <array length="4" zero-terminated="0" c:type="hb_position_t*">
            <type name="position_t" c:type="hb_position_t"/>
          </array>
        </parameter>
      </parameters>
    </function>
    <function name="ot_layout_get_size_params" c:identifier="hb_ot_layout_get_size_params" version="0.9.10">
      <doc xml:space="preserve">Fetches optical-size feature data (i.e., the `size` feature from GPOS). Note that
the subfamily_id and the subfamily name string (accessible via the subfamily_name_id)
as used here are defined as pertaining only to fonts within a font family that differ
specifically in their respective size ranges; other ways to differentiate fonts within
a subfamily are not covered by the `size` feature.

For more information on this distinction, see the [`size` feature documentation](
https://docs.microsoft.com/en-us/typography/opentype/spec/features_pt#tag-size).</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%true if data found, false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">#hb_face_t to work upon</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="design_size" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The design size of the face</doc>
          <type name="guint" c:type="unsigned int*"/>
        </parameter>
        <parameter name="subfamily_id" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The identifier of the face within the font subfamily</doc>
          <type name="guint" c:type="unsigned int*"/>
        </parameter>
        <parameter name="subfamily_name_id" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The &#x2018;name&#x2019; table name ID of the face within the font subfamily</doc>
          <type name="ot_name_id_t" c:type="hb_ot_name_id_t*"/>
        </parameter>
        <parameter name="range_start" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The minimum size of the recommended size range for the face</doc>
          <type name="guint" c:type="unsigned int*"/>
        </parameter>
        <parameter name="range_end" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The maximum size of the recommended size range for the face</doc>
          <type name="guint" c:type="unsigned int*"/>
        </parameter>
      </parameters>
    </function>
    <enumeration name="ot_layout_glyph_class_t" glib:type-name="hb_ot_layout_glyph_class_t" glib:get-type="hb_gobject_ot_layout_glyph_class_get_type" c:type="hb_ot_layout_glyph_class_t">
      <doc xml:space="preserve">The GDEF classes defined for glyphs.</doc>
      <member name="unclassified" value="0" c:identifier="HB_OT_LAYOUT_GLYPH_CLASS_UNCLASSIFIED" glib:nick="unclassified" glib:name="HB_OT_LAYOUT_GLYPH_CLASS_UNCLASSIFIED">
        <doc xml:space="preserve">Glyphs not matching the other classifications</doc>
      </member>
      <member name="base_glyph" value="1" c:identifier="HB_OT_LAYOUT_GLYPH_CLASS_BASE_GLYPH" glib:nick="base-glyph" glib:name="HB_OT_LAYOUT_GLYPH_CLASS_BASE_GLYPH">
        <doc xml:space="preserve">Spacing, single characters, capable of accepting marks</doc>
      </member>
      <member name="ligature" value="2" c:identifier="HB_OT_LAYOUT_GLYPH_CLASS_LIGATURE" glib:nick="ligature" glib:name="HB_OT_LAYOUT_GLYPH_CLASS_LIGATURE">
        <doc xml:space="preserve">Glyphs that represent ligation of multiple characters</doc>
      </member>
      <member name="mark" value="3" c:identifier="HB_OT_LAYOUT_GLYPH_CLASS_MARK" glib:nick="mark" glib:name="HB_OT_LAYOUT_GLYPH_CLASS_MARK">
        <doc xml:space="preserve">Non-spacing, combining glyphs that represent marks</doc>
      </member>
      <member name="component" value="4" c:identifier="HB_OT_LAYOUT_GLYPH_CLASS_COMPONENT" glib:nick="component" glib:name="HB_OT_LAYOUT_GLYPH_CLASS_COMPONENT">
        <doc xml:space="preserve">Spacing glyphs that represent part of a single character</doc>
      </member>
    </enumeration>
    <function name="ot_layout_has_glyph_classes" c:identifier="hb_ot_layout_has_glyph_classes">
      <doc xml:space="preserve">Tests whether a face has any glyph classes defined in its GDEF table.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%true if data found, false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">#hb_face_t to work upon</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_layout_has_positioning" c:identifier="hb_ot_layout_has_positioning">
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%true if the face has GPOS data, false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">#hb_face_t to work upon</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_layout_has_substitution" c:identifier="hb_ot_layout_has_substitution">
      <doc xml:space="preserve">Tests whether the specified face includes any GSUB substitutions.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%true if data found, false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">#hb_face_t to work upon</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_layout_language_find_feature" c:identifier="hb_ot_layout_language_find_feature">
      <doc xml:space="preserve">Fetches the index of a given feature tag in the specified face's GSUB table
or GPOS table, underneath the specified script and language.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%true if the feature is found, false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">#hb_face_t to work upon</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="table_tag" transfer-ownership="none">
          <doc xml:space="preserve">HB_OT_TAG_GSUB or HB_OT_TAG_GPOS</doc>
          <type name="tag_t" c:type="hb_tag_t"/>
        </parameter>
        <parameter name="script_index" transfer-ownership="none">
          <doc xml:space="preserve">The index of the requested script tag</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="language_index" transfer-ownership="none">
          <doc xml:space="preserve">The index of the requested language tag</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="feature_tag" transfer-ownership="none">
          <doc xml:space="preserve">#hb_tag_t of the feature tag requested</doc>
          <type name="tag_t" c:type="hb_tag_t"/>
        </parameter>
        <parameter name="feature_index" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The index of the requested feature</doc>
          <type name="guint" c:type="unsigned int*"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_layout_language_get_feature_indexes" c:identifier="hb_ot_layout_language_get_feature_indexes">
      <doc xml:space="preserve">Fetches a list of all features in the specified face's GSUB table
or GPOS table, underneath the specified script and language. The list
returned will begin at the offset provided.</doc>
      <return-value transfer-ownership="none">
        <type name="guint" c:type="unsigned int"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">#hb_face_t to work upon</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="table_tag" transfer-ownership="none">
          <doc xml:space="preserve">HB_OT_TAG_GSUB or HB_OT_TAG_GPOS</doc>
          <type name="tag_t" c:type="hb_tag_t"/>
        </parameter>
        <parameter name="script_index" transfer-ownership="none">
          <doc xml:space="preserve">The index of the requested script tag</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="language_index" transfer-ownership="none">
          <doc xml:space="preserve">The index of the requested language tag</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="start_offset" transfer-ownership="none">
          <doc xml:space="preserve">offset of the first feature tag to retrieve</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="feature_count" direction="out" caller-allocates="0" transfer-ownership="full" nullable="1">
          <doc xml:space="preserve">Input = the maximum number of feature tags to return;
                Output: the actual number of feature tags returned (may be zero)</doc>
          <type name="guint" c:type="unsigned int*"/>
        </parameter>
        <parameter name="feature_indexes" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The array of feature indexes found for the query</doc>
          <array length="5" zero-terminated="0" c:type="unsigned int*">
            <type name="guint" c:type="unsigned int"/>
          </array>
        </parameter>
      </parameters>
    </function>
    <function name="ot_layout_language_get_feature_tags" c:identifier="hb_ot_layout_language_get_feature_tags">
      <doc xml:space="preserve">Fetches a list of all features in the specified face's GSUB table
or GPOS table, underneath the specified script and language. The list
returned will begin at the offset provided.</doc>
      <return-value transfer-ownership="none">
        <type name="guint" c:type="unsigned int"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">#hb_face_t to work upon</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="table_tag" transfer-ownership="none">
          <doc xml:space="preserve">HB_OT_TAG_GSUB or HB_OT_TAG_GPOS</doc>
          <type name="tag_t" c:type="hb_tag_t"/>
        </parameter>
        <parameter name="script_index" transfer-ownership="none">
          <doc xml:space="preserve">The index of the requested script tag</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="language_index" transfer-ownership="none">
          <doc xml:space="preserve">The index of the requested language tag</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="start_offset" transfer-ownership="none">
          <doc xml:space="preserve">offset of the first feature tag to retrieve</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="feature_count" direction="out" caller-allocates="0" transfer-ownership="full" nullable="1">
          <doc xml:space="preserve">Input = the maximum number of feature tags to return;
                Output = the actual number of feature tags returned (may be zero)</doc>
          <type name="guint" c:type="unsigned int*"/>
        </parameter>
        <parameter name="feature_tags" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The array of #hb_tag_t feature tags found for the query</doc>
          <array length="5" zero-terminated="0" c:type="hb_tag_t*">
            <type name="tag_t" c:type="hb_tag_t"/>
          </array>
        </parameter>
      </parameters>
    </function>
    <function name="ot_layout_language_get_required_feature" c:identifier="hb_ot_layout_language_get_required_feature" version="0.9.30">
      <doc xml:space="preserve">Fetches the tag of a requested feature index in the given face's GSUB or GPOS table,
underneath the specified script and language.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%true if the feature is found, false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">#hb_face_t to work upon</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="table_tag" transfer-ownership="none">
          <doc xml:space="preserve">HB_OT_TAG_GSUB or HB_OT_TAG_GPOS</doc>
          <type name="tag_t" c:type="hb_tag_t"/>
        </parameter>
        <parameter name="script_index" transfer-ownership="none">
          <doc xml:space="preserve">The index of the requested script tag</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="language_index" transfer-ownership="none">
          <doc xml:space="preserve">The index of the requested language tag</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="feature_index" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The index of the requested feature</doc>
          <type name="guint" c:type="unsigned int*"/>
        </parameter>
        <parameter name="feature_tag" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The #hb_tag_t of the requested feature</doc>
          <type name="tag_t" c:type="hb_tag_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_layout_language_get_required_feature_index" c:identifier="hb_ot_layout_language_get_required_feature_index">
      <doc xml:space="preserve">Fetches the index of a requested feature in the given face's GSUB or GPOS table,
underneath the specified script and language.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%true if the feature is found, false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">#hb_face_t to work upon</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="table_tag" transfer-ownership="none">
          <doc xml:space="preserve">HB_OT_TAG_GSUB or HB_OT_TAG_GPOS</doc>
          <type name="tag_t" c:type="hb_tag_t"/>
        </parameter>
        <parameter name="script_index" transfer-ownership="none">
          <doc xml:space="preserve">The index of the requested script tag</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="language_index" transfer-ownership="none">
          <doc xml:space="preserve">The index of the requested language tag</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="feature_index" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The index of the requested feature</doc>
          <type name="guint" c:type="unsigned int*"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_layout_lookup_collect_glyphs" c:identifier="hb_ot_layout_lookup_collect_glyphs" version="0.9.7">
      <doc xml:space="preserve">Fetches a list of all glyphs affected by the specified lookup in the
specified face's GSUB table or GPOS table.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">#hb_face_t to work upon</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="table_tag" transfer-ownership="none">
          <doc xml:space="preserve">HB_OT_TAG_GSUB or HB_OT_TAG_GPOS</doc>
          <type name="tag_t" c:type="hb_tag_t"/>
        </parameter>
        <parameter name="lookup_index" transfer-ownership="none">
          <doc xml:space="preserve">The index of the feature lookup to query</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="glyphs_before" direction="out" caller-allocates="1" transfer-ownership="none">
          <doc xml:space="preserve">Array of glyphs preceding the substitution range</doc>
          <type name="set_t" c:type="hb_set_t*"/>
        </parameter>
        <parameter name="glyphs_input" direction="out" caller-allocates="1" transfer-ownership="none">
          <doc xml:space="preserve">Array of input glyphs that would be substituted by the lookup</doc>
          <type name="set_t" c:type="hb_set_t*"/>
        </parameter>
        <parameter name="glyphs_after" direction="out" caller-allocates="1" transfer-ownership="none">
          <doc xml:space="preserve">Array of glyphs following the substitution range</doc>
          <type name="set_t" c:type="hb_set_t*"/>
        </parameter>
        <parameter name="glyphs_output" direction="out" caller-allocates="1" transfer-ownership="none">
          <doc xml:space="preserve">Array of glyphs that would be the substituted output of the lookup</doc>
          <type name="set_t" c:type="hb_set_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_layout_lookup_get_glyph_alternates" c:identifier="hb_ot_layout_lookup_get_glyph_alternates" version="2.6.8">
      <doc xml:space="preserve">Fetches alternates of a glyph from a given GSUB lookup index.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">total number of alternates found in the specific lookup index for the given glyph id.</doc>
        <type name="guint" c:type="unsigned"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">a face.</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="lookup_index" transfer-ownership="none">
          <doc xml:space="preserve">index of the feature lookup to query.</doc>
          <type name="guint" c:type="unsigned"/>
        </parameter>
        <parameter name="glyph" transfer-ownership="none">
          <doc xml:space="preserve">a glyph id.</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="start_offset" transfer-ownership="none">
          <doc xml:space="preserve">starting offset.</doc>
          <type name="guint" c:type="unsigned"/>
        </parameter>
        <parameter name="alternate_count" direction="out" caller-allocates="0" transfer-ownership="full" nullable="1">
          <doc xml:space="preserve">Input = the maximum number of alternate glyphs to return;
                  Output = the actual number of alternate glyphs returned (may be zero).</doc>
          <type name="guint" c:type="unsigned*"/>
        </parameter>
        <parameter name="alternate_glyphs" direction="out" caller-allocates="1" transfer-ownership="none">
          <doc xml:space="preserve">A glyphs buffer.
                   Alternate glyphs associated with the glyph id.</doc>
          <array length="4" zero-terminated="0" c:type="hb_codepoint_t*">
            <type name="codepoint_t" c:type="hb_codepoint_t"/>
          </array>
        </parameter>
      </parameters>
    </function>
    <function name="ot_layout_lookup_substitute_closure" c:identifier="hb_ot_layout_lookup_substitute_closure" version="0.9.7">
      <doc xml:space="preserve">Compute the transitive closure of glyphs needed for a
specified lookup.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">#hb_face_t to work upon</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="lookup_index" transfer-ownership="none">
          <doc xml:space="preserve">index of the feature lookup to query</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="glyphs" direction="out" caller-allocates="1" transfer-ownership="none">
          <doc xml:space="preserve">Array of glyphs comprising the transitive closure of the lookup</doc>
          <type name="set_t" c:type="hb_set_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_layout_lookup_would_substitute" c:identifier="hb_ot_layout_lookup_would_substitute" version="0.9.7">
      <doc xml:space="preserve">Tests whether a specified lookup in the specified face would
trigger a substitution on the given glyph sequence.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%true if a substitution would be triggered, false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">#hb_face_t to work upon</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="lookup_index" transfer-ownership="none">
          <doc xml:space="preserve">The index of the lookup to query</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="glyphs" transfer-ownership="none">
          <doc xml:space="preserve">The sequence of glyphs to query for substitution</doc>
          <type name="codepoint_t" c:type="const hb_codepoint_t*"/>
        </parameter>
        <parameter name="glyphs_length" transfer-ownership="none">
          <doc xml:space="preserve">The length of the glyph sequence</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="zero_context" transfer-ownership="none">
          <doc xml:space="preserve">#hb_bool_t indicating whether substitutions should be context-free</doc>
          <type name="bool_t" c:type="hb_bool_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_layout_lookups_substitute_closure" c:identifier="hb_ot_layout_lookups_substitute_closure" version="1.8.1">
      <doc xml:space="preserve">Compute the transitive closure of glyphs needed for all of the
provided lookups.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">#hb_face_t to work upon</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="lookups" transfer-ownership="none">
          <doc xml:space="preserve">The set of lookups to query</doc>
          <type name="set_t" c:type="const hb_set_t*"/>
        </parameter>
        <parameter name="glyphs" direction="out" caller-allocates="1" transfer-ownership="none">
          <doc xml:space="preserve">Array of glyphs comprising the transitive closure of the lookups</doc>
          <type name="set_t" c:type="hb_set_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_layout_script_find_language" c:identifier="hb_ot_layout_script_find_language" deprecated="1">
      <doc xml:space="preserve">Fetches the index of a given language tag in the specified face's GSUB table
or GPOS table, underneath the specified script tag.</doc>
      <doc-version xml:space="preserve">??</doc-version>
      <doc-deprecated xml:space="preserve">??</doc-deprecated>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%true if the language tag is found, false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">#hb_face_t to work upon</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="table_tag" transfer-ownership="none">
          <doc xml:space="preserve">HB_OT_TAG_GSUB or HB_OT_TAG_GPOS</doc>
          <type name="tag_t" c:type="hb_tag_t"/>
        </parameter>
        <parameter name="script_index" transfer-ownership="none">
          <doc xml:space="preserve">The index of the requested script tag</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="language_tag" transfer-ownership="none">
          <doc xml:space="preserve">The #hb_tag_t of the requested language</doc>
          <type name="tag_t" c:type="hb_tag_t"/>
        </parameter>
        <parameter name="language_index" transfer-ownership="none">
          <doc xml:space="preserve">The index of the requested language</doc>
          <type name="guint" c:type="unsigned int*"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_layout_script_get_language_tags" c:identifier="hb_ot_layout_script_get_language_tags">
      <doc xml:space="preserve">Fetches a list of language tags in the given face's GSUB or GPOS table, underneath
the specified script index. The list returned will begin at the offset provided.</doc>
      <return-value transfer-ownership="none">
        <type name="guint" c:type="unsigned int"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">#hb_face_t to work upon</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="table_tag" transfer-ownership="none">
          <doc xml:space="preserve">HB_OT_TAG_GSUB or HB_OT_TAG_GPOS</doc>
          <type name="tag_t" c:type="hb_tag_t"/>
        </parameter>
        <parameter name="script_index" transfer-ownership="none">
          <doc xml:space="preserve">The index of the requested script tag</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="start_offset" transfer-ownership="none">
          <doc xml:space="preserve">offset of the first language tag to retrieve</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="language_count" direction="out" caller-allocates="0" transfer-ownership="full" nullable="1">
          <doc xml:space="preserve">Input = the maximum number of language tags to return;
                 Output = the actual number of language tags returned (may be zero)</doc>
          <type name="guint" c:type="unsigned int*"/>
        </parameter>
        <parameter name="language_tags" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">Array of language tags found in the table</doc>
          <array length="4" zero-terminated="0" c:type="hb_tag_t*">
            <type name="tag_t" c:type="hb_tag_t"/>
          </array>
        </parameter>
      </parameters>
    </function>
    <function name="ot_layout_script_select_language" c:identifier="hb_ot_layout_script_select_language" version="2.0.0">
      <doc xml:space="preserve">Fetches the index of a given language tag in the specified face's GSUB table
or GPOS table, underneath the specified script index.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%true if the language tag is found, false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">#hb_face_t to work upon</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="table_tag" transfer-ownership="none">
          <doc xml:space="preserve">HB_OT_TAG_GSUB or HB_OT_TAG_GPOS</doc>
          <type name="tag_t" c:type="hb_tag_t"/>
        </parameter>
        <parameter name="script_index" transfer-ownership="none">
          <doc xml:space="preserve">The index of the requested script tag</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="language_count" transfer-ownership="none">
          <doc xml:space="preserve">The number of languages in the specified script</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="language_tags" transfer-ownership="none">
          <doc xml:space="preserve">The array of language tags</doc>
          <type name="tag_t" c:type="const hb_tag_t*"/>
        </parameter>
        <parameter name="language_index" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The index of the requested language</doc>
          <type name="guint" c:type="unsigned int*"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_layout_table_choose_script" c:identifier="hb_ot_layout_table_choose_script">
      <doc xml:space="preserve">Deprecated since 2.0.0</doc>
      <return-value transfer-ownership="none">
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">#hb_face_t to work upon</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="table_tag" transfer-ownership="none">
          <doc xml:space="preserve">HB_OT_TAG_GSUB or HB_OT_TAG_GPOS</doc>
          <type name="tag_t" c:type="hb_tag_t"/>
        </parameter>
        <parameter name="script_tags" transfer-ownership="none">
          <doc xml:space="preserve">Array of #hb_tag_t script tags</doc>
          <type name="tag_t" c:type="const hb_tag_t*"/>
        </parameter>
        <parameter name="script_index" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The index of the requested script tag</doc>
          <type name="guint" c:type="unsigned int*"/>
        </parameter>
        <parameter name="chosen_script" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">#hb_tag_t of the script tag requested</doc>
          <type name="tag_t" c:type="hb_tag_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_layout_table_find_feature_variations" c:identifier="hb_ot_layout_table_find_feature_variations">
      <doc xml:space="preserve">Fetches a list of feature variations in the specified face's GSUB table
or GPOS table, at the specified variation coordinates.</doc>
      <return-value transfer-ownership="none">
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">#hb_face_t to work upon</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="table_tag" transfer-ownership="none">
          <doc xml:space="preserve">HB_OT_TAG_GSUB or HB_OT_TAG_GPOS</doc>
          <type name="tag_t" c:type="hb_tag_t"/>
        </parameter>
        <parameter name="coords" transfer-ownership="none">
          <doc xml:space="preserve">The variation coordinates to query</doc>
          <type name="gint" c:type="const int*"/>
        </parameter>
        <parameter name="num_coords" transfer-ownership="none">
          <doc xml:space="preserve">The number of variation coordinates</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="variations_index" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The array of feature variations found for the query</doc>
          <type name="guint" c:type="unsigned int*"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_layout_table_find_script" c:identifier="hb_ot_layout_table_find_script">
      <doc xml:space="preserve">Fetches the index if a given script tag in the specified face's GSUB table
or GPOS table.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%true if the script is found, false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">#hb_face_t to work upon</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="table_tag" transfer-ownership="none">
          <doc xml:space="preserve">HB_OT_TAG_GSUB or HB_OT_TAG_GPOS</doc>
          <type name="tag_t" c:type="hb_tag_t"/>
        </parameter>
        <parameter name="script_tag" transfer-ownership="none">
          <doc xml:space="preserve">#hb_tag_t of the script tag requested</doc>
          <type name="tag_t" c:type="hb_tag_t"/>
        </parameter>
        <parameter name="script_index" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The index of the requested script tag</doc>
          <type name="guint" c:type="unsigned int*"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_layout_table_get_feature_tags" c:identifier="hb_ot_layout_table_get_feature_tags">
      <doc xml:space="preserve">Fetches a list of all feature tags in the given face's GSUB or GPOS table.</doc>
      <return-value transfer-ownership="none">
        <type name="guint" c:type="unsigned int"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">#hb_face_t to work upon</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="table_tag" transfer-ownership="none">
          <doc xml:space="preserve">HB_OT_TAG_GSUB or HB_OT_TAG_GPOS</doc>
          <type name="tag_t" c:type="hb_tag_t"/>
        </parameter>
        <parameter name="start_offset" transfer-ownership="none">
          <doc xml:space="preserve">offset of the first feature tag to retrieve</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="feature_count" direction="out" caller-allocates="0" transfer-ownership="full" nullable="1">
          <doc xml:space="preserve">Input = the maximum number of feature tags to return;
                Output = the actual number of feature tags returned (may be zero)</doc>
          <type name="guint" c:type="unsigned int*"/>
        </parameter>
        <parameter name="feature_tags" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">Array of feature tags found in the table</doc>
          <array length="3" zero-terminated="0" c:type="hb_tag_t*">
            <type name="tag_t" c:type="hb_tag_t"/>
          </array>
        </parameter>
      </parameters>
    </function>
    <function name="ot_layout_table_get_lookup_count" c:identifier="hb_ot_layout_table_get_lookup_count" version="0.9.22">
      <doc xml:space="preserve">Fetches the total number of lookups enumerated in the specified
face's GSUB table or GPOS table.</doc>
      <return-value transfer-ownership="none">
        <type name="guint" c:type="unsigned int"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">#hb_face_t to work upon</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="table_tag" transfer-ownership="none">
          <doc xml:space="preserve">HB_OT_TAG_GSUB or HB_OT_TAG_GPOS</doc>
          <type name="tag_t" c:type="hb_tag_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_layout_table_get_script_tags" c:identifier="hb_ot_layout_table_get_script_tags">
      <doc xml:space="preserve">Fetches a list of all scripts enumerated in the specified face's GSUB table
or GPOS table. The list returned will begin at the offset provided.</doc>
      <return-value transfer-ownership="none">
        <type name="guint" c:type="unsigned int"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">#hb_face_t to work upon</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="table_tag" transfer-ownership="none">
          <doc xml:space="preserve">HB_OT_TAG_GSUB or HB_OT_TAG_GPOS</doc>
          <type name="tag_t" c:type="hb_tag_t"/>
        </parameter>
        <parameter name="start_offset" transfer-ownership="none">
          <doc xml:space="preserve">offset of the first script tag to retrieve</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="script_count" direction="out" caller-allocates="0" transfer-ownership="full" nullable="1">
          <doc xml:space="preserve">Input = the maximum number of script tags to return;
               Output = the actual number of script tags returned (may be zero)</doc>
          <type name="guint" c:type="unsigned int*"/>
        </parameter>
        <parameter name="script_tags" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The array of #hb_tag_t script tags found for the query</doc>
          <array length="3" zero-terminated="0" c:type="hb_tag_t*">
            <type name="tag_t" c:type="hb_tag_t"/>
          </array>
        </parameter>
      </parameters>
    </function>
    <function name="ot_layout_table_select_script" c:identifier="hb_ot_layout_table_select_script" version="2.0.0">
      <return-value transfer-ownership="none">
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">#hb_face_t to work upon</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="table_tag" transfer-ownership="none">
          <doc xml:space="preserve">HB_OT_TAG_GSUB or HB_OT_TAG_GPOS</doc>
          <type name="tag_t" c:type="hb_tag_t"/>
        </parameter>
        <parameter name="script_count" transfer-ownership="none">
          <doc xml:space="preserve">Number of script tags in the array</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="script_tags" transfer-ownership="none">
          <doc xml:space="preserve">Array of #hb_tag_t script tags</doc>
          <type name="tag_t" c:type="const hb_tag_t*"/>
        </parameter>
        <parameter name="script_index" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The index of the requested script</doc>
          <type name="guint" c:type="unsigned int*"/>
        </parameter>
        <parameter name="chosen_script" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">#hb_tag_t of the requested script</doc>
          <type name="tag_t" c:type="hb_tag_t*"/>
        </parameter>
      </parameters>
    </function>
    <enumeration name="ot_math_constant_t" version="1.3.3" glib:type-name="hb_ot_math_constant_t" glib:get-type="hb_gobject_ot_math_constant_get_type" c:type="hb_ot_math_constant_t">
      <doc xml:space="preserve">The 'MATH' table constants specified at
https://docs.microsoft.com/en-us/typography/opentype/spec/math</doc>
      <member name="script_percent_scale_down" value="0" c:identifier="HB_OT_MATH_CONSTANT_SCRIPT_PERCENT_SCALE_DOWN" glib:nick="script-percent-scale-down" glib:name="HB_OT_MATH_CONSTANT_SCRIPT_PERCENT_SCALE_DOWN">
      </member>
      <member name="script_script_percent_scale_down" value="1" c:identifier="HB_OT_MATH_CONSTANT_SCRIPT_SCRIPT_PERCENT_SCALE_DOWN" glib:nick="script-script-percent-scale-down" glib:name="HB_OT_MATH_CONSTANT_SCRIPT_SCRIPT_PERCENT_SCALE_DOWN">
      </member>
      <member name="delimited_sub_formula_min_height" value="2" c:identifier="HB_OT_MATH_CONSTANT_DELIMITED_SUB_FORMULA_MIN_HEIGHT" glib:nick="delimited-sub-formula-min-height" glib:name="HB_OT_MATH_CONSTANT_DELIMITED_SUB_FORMULA_MIN_HEIGHT">
      </member>
      <member name="display_operator_min_height" value="3" c:identifier="HB_OT_MATH_CONSTANT_DISPLAY_OPERATOR_MIN_HEIGHT" glib:nick="display-operator-min-height" glib:name="HB_OT_MATH_CONSTANT_DISPLAY_OPERATOR_MIN_HEIGHT">
      </member>
      <member name="math_leading" value="4" c:identifier="HB_OT_MATH_CONSTANT_MATH_LEADING" glib:nick="math-leading" glib:name="HB_OT_MATH_CONSTANT_MATH_LEADING">
      </member>
      <member name="axis_height" value="5" c:identifier="HB_OT_MATH_CONSTANT_AXIS_HEIGHT" glib:nick="axis-height" glib:name="HB_OT_MATH_CONSTANT_AXIS_HEIGHT">
      </member>
      <member name="accent_base_height" value="6" c:identifier="HB_OT_MATH_CONSTANT_ACCENT_BASE_HEIGHT" glib:nick="accent-base-height" glib:name="HB_OT_MATH_CONSTANT_ACCENT_BASE_HEIGHT">
      </member>
      <member name="flattened_accent_base_height" value="7" c:identifier="HB_OT_MATH_CONSTANT_FLATTENED_ACCENT_BASE_HEIGHT" glib:nick="flattened-accent-base-height" glib:name="HB_OT_MATH_CONSTANT_FLATTENED_ACCENT_BASE_HEIGHT">
      </member>
      <member name="subscript_shift_down" value="8" c:identifier="HB_OT_MATH_CONSTANT_SUBSCRIPT_SHIFT_DOWN" glib:nick="subscript-shift-down" glib:name="HB_OT_MATH_CONSTANT_SUBSCRIPT_SHIFT_DOWN">
      </member>
      <member name="subscript_top_max" value="9" c:identifier="HB_OT_MATH_CONSTANT_SUBSCRIPT_TOP_MAX" glib:nick="subscript-top-max" glib:name="HB_OT_MATH_CONSTANT_SUBSCRIPT_TOP_MAX">
      </member>
      <member name="subscript_baseline_drop_min" value="10" c:identifier="HB_OT_MATH_CONSTANT_SUBSCRIPT_BASELINE_DROP_MIN" glib:nick="subscript-baseline-drop-min" glib:name="HB_OT_MATH_CONSTANT_SUBSCRIPT_BASELINE_DROP_MIN">
      </member>
      <member name="superscript_shift_up" value="11" c:identifier="HB_OT_MATH_CONSTANT_SUPERSCRIPT_SHIFT_UP" glib:nick="superscript-shift-up" glib:name="HB_OT_MATH_CONSTANT_SUPERSCRIPT_SHIFT_UP">
      </member>
      <member name="superscript_shift_up_cramped" value="12" c:identifier="HB_OT_MATH_CONSTANT_SUPERSCRIPT_SHIFT_UP_CRAMPED" glib:nick="superscript-shift-up-cramped" glib:name="HB_OT_MATH_CONSTANT_SUPERSCRIPT_SHIFT_UP_CRAMPED">
      </member>
      <member name="superscript_bottom_min" value="13" c:identifier="HB_OT_MATH_CONSTANT_SUPERSCRIPT_BOTTOM_MIN" glib:nick="superscript-bottom-min" glib:name="HB_OT_MATH_CONSTANT_SUPERSCRIPT_BOTTOM_MIN">
      </member>
      <member name="superscript_baseline_drop_max" value="14" c:identifier="HB_OT_MATH_CONSTANT_SUPERSCRIPT_BASELINE_DROP_MAX" glib:nick="superscript-baseline-drop-max" glib:name="HB_OT_MATH_CONSTANT_SUPERSCRIPT_BASELINE_DROP_MAX">
      </member>
      <member name="sub_superscript_gap_min" value="15" c:identifier="HB_OT_MATH_CONSTANT_SUB_SUPERSCRIPT_GAP_MIN" glib:nick="sub-superscript-gap-min" glib:name="HB_OT_MATH_CONSTANT_SUB_SUPERSCRIPT_GAP_MIN">
      </member>
      <member name="superscript_bottom_max_with_subscript" value="16" c:identifier="HB_OT_MATH_CONSTANT_SUPERSCRIPT_BOTTOM_MAX_WITH_SUBSCRIPT" glib:nick="superscript-bottom-max-with-subscript" glib:name="HB_OT_MATH_CONSTANT_SUPERSCRIPT_BOTTOM_MAX_WITH_SUBSCRIPT">
      </member>
      <member name="space_after_script" value="17" c:identifier="HB_OT_MATH_CONSTANT_SPACE_AFTER_SCRIPT" glib:nick="space-after-script" glib:name="HB_OT_MATH_CONSTANT_SPACE_AFTER_SCRIPT">
      </member>
      <member name="upper_limit_gap_min" value="18" c:identifier="HB_OT_MATH_CONSTANT_UPPER_LIMIT_GAP_MIN" glib:nick="upper-limit-gap-min" glib:name="HB_OT_MATH_CONSTANT_UPPER_LIMIT_GAP_MIN">
      </member>
      <member name="upper_limit_baseline_rise_min" value="19" c:identifier="HB_OT_MATH_CONSTANT_UPPER_LIMIT_BASELINE_RISE_MIN" glib:nick="upper-limit-baseline-rise-min" glib:name="HB_OT_MATH_CONSTANT_UPPER_LIMIT_BASELINE_RISE_MIN">
      </member>
      <member name="lower_limit_gap_min" value="20" c:identifier="HB_OT_MATH_CONSTANT_LOWER_LIMIT_GAP_MIN" glib:nick="lower-limit-gap-min" glib:name="HB_OT_MATH_CONSTANT_LOWER_LIMIT_GAP_MIN">
      </member>
      <member name="lower_limit_baseline_drop_min" value="21" c:identifier="HB_OT_MATH_CONSTANT_LOWER_LIMIT_BASELINE_DROP_MIN" glib:nick="lower-limit-baseline-drop-min" glib:name="HB_OT_MATH_CONSTANT_LOWER_LIMIT_BASELINE_DROP_MIN">
      </member>
      <member name="stack_top_shift_up" value="22" c:identifier="HB_OT_MATH_CONSTANT_STACK_TOP_SHIFT_UP" glib:nick="stack-top-shift-up" glib:name="HB_OT_MATH_CONSTANT_STACK_TOP_SHIFT_UP">
      </member>
      <member name="stack_top_display_style_shift_up" value="23" c:identifier="HB_OT_MATH_CONSTANT_STACK_TOP_DISPLAY_STYLE_SHIFT_UP" glib:nick="stack-top-display-style-shift-up" glib:name="HB_OT_MATH_CONSTANT_STACK_TOP_DISPLAY_STYLE_SHIFT_UP">
      </member>
      <member name="stack_bottom_shift_down" value="24" c:identifier="HB_OT_MATH_CONSTANT_STACK_BOTTOM_SHIFT_DOWN" glib:nick="stack-bottom-shift-down" glib:name="HB_OT_MATH_CONSTANT_STACK_BOTTOM_SHIFT_DOWN">
      </member>
      <member name="stack_bottom_display_style_shift_down" value="25" c:identifier="HB_OT_MATH_CONSTANT_STACK_BOTTOM_DISPLAY_STYLE_SHIFT_DOWN" glib:nick="stack-bottom-display-style-shift-down" glib:name="HB_OT_MATH_CONSTANT_STACK_BOTTOM_DISPLAY_STYLE_SHIFT_DOWN">
      </member>
      <member name="stack_gap_min" value="26" c:identifier="HB_OT_MATH_CONSTANT_STACK_GAP_MIN" glib:nick="stack-gap-min" glib:name="HB_OT_MATH_CONSTANT_STACK_GAP_MIN">
      </member>
      <member name="stack_display_style_gap_min" value="27" c:identifier="HB_OT_MATH_CONSTANT_STACK_DISPLAY_STYLE_GAP_MIN" glib:nick="stack-display-style-gap-min" glib:name="HB_OT_MATH_CONSTANT_STACK_DISPLAY_STYLE_GAP_MIN">
      </member>
      <member name="stretch_stack_top_shift_up" value="28" c:identifier="HB_OT_MATH_CONSTANT_STRETCH_STACK_TOP_SHIFT_UP" glib:nick="stretch-stack-top-shift-up" glib:name="HB_OT_MATH_CONSTANT_STRETCH_STACK_TOP_SHIFT_UP">
      </member>
      <member name="stretch_stack_bottom_shift_down" value="29" c:identifier="HB_OT_MATH_CONSTANT_STRETCH_STACK_BOTTOM_SHIFT_DOWN" glib:nick="stretch-stack-bottom-shift-down" glib:name="HB_OT_MATH_CONSTANT_STRETCH_STACK_BOTTOM_SHIFT_DOWN">
      </member>
      <member name="stretch_stack_gap_above_min" value="30" c:identifier="HB_OT_MATH_CONSTANT_STRETCH_STACK_GAP_ABOVE_MIN" glib:nick="stretch-stack-gap-above-min" glib:name="HB_OT_MATH_CONSTANT_STRETCH_STACK_GAP_ABOVE_MIN">
      </member>
      <member name="stretch_stack_gap_below_min" value="31" c:identifier="HB_OT_MATH_CONSTANT_STRETCH_STACK_GAP_BELOW_MIN" glib:nick="stretch-stack-gap-below-min" glib:name="HB_OT_MATH_CONSTANT_STRETCH_STACK_GAP_BELOW_MIN">
      </member>
      <member name="fraction_numerator_shift_up" value="32" c:identifier="HB_OT_MATH_CONSTANT_FRACTION_NUMERATOR_SHIFT_UP" glib:nick="fraction-numerator-shift-up" glib:name="HB_OT_MATH_CONSTANT_FRACTION_NUMERATOR_SHIFT_UP">
      </member>
      <member name="fraction_numerator_display_style_shift_up" value="33" c:identifier="HB_OT_MATH_CONSTANT_FRACTION_NUMERATOR_DISPLAY_STYLE_SHIFT_UP" glib:nick="fraction-numerator-display-style-shift-up" glib:name="HB_OT_MATH_CONSTANT_FRACTION_NUMERATOR_DISPLAY_STYLE_SHIFT_UP">
      </member>
      <member name="fraction_denominator_shift_down" value="34" c:identifier="HB_OT_MATH_CONSTANT_FRACTION_DENOMINATOR_SHIFT_DOWN" glib:nick="fraction-denominator-shift-down" glib:name="HB_OT_MATH_CONSTANT_FRACTION_DENOMINATOR_SHIFT_DOWN">
      </member>
      <member name="fraction_denominator_display_style_shift_down" value="35" c:identifier="HB_OT_MATH_CONSTANT_FRACTION_DENOMINATOR_DISPLAY_STYLE_SHIFT_DOWN" glib:nick="fraction-denominator-display-style-shift-down" glib:name="HB_OT_MATH_CONSTANT_FRACTION_DENOMINATOR_DISPLAY_STYLE_SHIFT_DOWN">
      </member>
      <member name="fraction_numerator_gap_min" value="36" c:identifier="HB_OT_MATH_CONSTANT_FRACTION_NUMERATOR_GAP_MIN" glib:nick="fraction-numerator-gap-min" glib:name="HB_OT_MATH_CONSTANT_FRACTION_NUMERATOR_GAP_MIN">
      </member>
      <member name="fraction_num_display_style_gap_min" value="37" c:identifier="HB_OT_MATH_CONSTANT_FRACTION_NUM_DISPLAY_STYLE_GAP_MIN" glib:nick="fraction-num-display-style-gap-min" glib:name="HB_OT_MATH_CONSTANT_FRACTION_NUM_DISPLAY_STYLE_GAP_MIN">
      </member>
      <member name="fraction_rule_thickness" value="38" c:identifier="HB_OT_MATH_CONSTANT_FRACTION_RULE_THICKNESS" glib:nick="fraction-rule-thickness" glib:name="HB_OT_MATH_CONSTANT_FRACTION_RULE_THICKNESS">
      </member>
      <member name="fraction_denominator_gap_min" value="39" c:identifier="HB_OT_MATH_CONSTANT_FRACTION_DENOMINATOR_GAP_MIN" glib:nick="fraction-denominator-gap-min" glib:name="HB_OT_MATH_CONSTANT_FRACTION_DENOMINATOR_GAP_MIN">
      </member>
      <member name="fraction_denom_display_style_gap_min" value="40" c:identifier="HB_OT_MATH_CONSTANT_FRACTION_DENOM_DISPLAY_STYLE_GAP_MIN" glib:nick="fraction-denom-display-style-gap-min" glib:name="HB_OT_MATH_CONSTANT_FRACTION_DENOM_DISPLAY_STYLE_GAP_MIN">
      </member>
      <member name="skewed_fraction_horizontal_gap" value="41" c:identifier="HB_OT_MATH_CONSTANT_SKEWED_FRACTION_HORIZONTAL_GAP" glib:nick="skewed-fraction-horizontal-gap" glib:name="HB_OT_MATH_CONSTANT_SKEWED_FRACTION_HORIZONTAL_GAP">
      </member>
      <member name="skewed_fraction_vertical_gap" value="42" c:identifier="HB_OT_MATH_CONSTANT_SKEWED_FRACTION_VERTICAL_GAP" glib:nick="skewed-fraction-vertical-gap" glib:name="HB_OT_MATH_CONSTANT_SKEWED_FRACTION_VERTICAL_GAP">
      </member>
      <member name="overbar_vertical_gap" value="43" c:identifier="HB_OT_MATH_CONSTANT_OVERBAR_VERTICAL_GAP" glib:nick="overbar-vertical-gap" glib:name="HB_OT_MATH_CONSTANT_OVERBAR_VERTICAL_GAP">
      </member>
      <member name="overbar_rule_thickness" value="44" c:identifier="HB_OT_MATH_CONSTANT_OVERBAR_RULE_THICKNESS" glib:nick="overbar-rule-thickness" glib:name="HB_OT_MATH_CONSTANT_OVERBAR_RULE_THICKNESS">
      </member>
      <member name="overbar_extra_ascender" value="45" c:identifier="HB_OT_MATH_CONSTANT_OVERBAR_EXTRA_ASCENDER" glib:nick="overbar-extra-ascender" glib:name="HB_OT_MATH_CONSTANT_OVERBAR_EXTRA_ASCENDER">
      </member>
      <member name="underbar_vertical_gap" value="46" c:identifier="HB_OT_MATH_CONSTANT_UNDERBAR_VERTICAL_GAP" glib:nick="underbar-vertical-gap" glib:name="HB_OT_MATH_CONSTANT_UNDERBAR_VERTICAL_GAP">
      </member>
      <member name="underbar_rule_thickness" value="47" c:identifier="HB_OT_MATH_CONSTANT_UNDERBAR_RULE_THICKNESS" glib:nick="underbar-rule-thickness" glib:name="HB_OT_MATH_CONSTANT_UNDERBAR_RULE_THICKNESS">
      </member>
      <member name="underbar_extra_descender" value="48" c:identifier="HB_OT_MATH_CONSTANT_UNDERBAR_EXTRA_DESCENDER" glib:nick="underbar-extra-descender" glib:name="HB_OT_MATH_CONSTANT_UNDERBAR_EXTRA_DESCENDER">
      </member>
      <member name="radical_vertical_gap" value="49" c:identifier="HB_OT_MATH_CONSTANT_RADICAL_VERTICAL_GAP" glib:nick="radical-vertical-gap" glib:name="HB_OT_MATH_CONSTANT_RADICAL_VERTICAL_GAP">
      </member>
      <member name="radical_display_style_vertical_gap" value="50" c:identifier="HB_OT_MATH_CONSTANT_RADICAL_DISPLAY_STYLE_VERTICAL_GAP" glib:nick="radical-display-style-vertical-gap" glib:name="HB_OT_MATH_CONSTANT_RADICAL_DISPLAY_STYLE_VERTICAL_GAP">
      </member>
      <member name="radical_rule_thickness" value="51" c:identifier="HB_OT_MATH_CONSTANT_RADICAL_RULE_THICKNESS" glib:nick="radical-rule-thickness" glib:name="HB_OT_MATH_CONSTANT_RADICAL_RULE_THICKNESS">
      </member>
      <member name="radical_extra_ascender" value="52" c:identifier="HB_OT_MATH_CONSTANT_RADICAL_EXTRA_ASCENDER" glib:nick="radical-extra-ascender" glib:name="HB_OT_MATH_CONSTANT_RADICAL_EXTRA_ASCENDER">
      </member>
      <member name="radical_kern_before_degree" value="53" c:identifier="HB_OT_MATH_CONSTANT_RADICAL_KERN_BEFORE_DEGREE" glib:nick="radical-kern-before-degree" glib:name="HB_OT_MATH_CONSTANT_RADICAL_KERN_BEFORE_DEGREE">
      </member>
      <member name="radical_kern_after_degree" value="54" c:identifier="HB_OT_MATH_CONSTANT_RADICAL_KERN_AFTER_DEGREE" glib:nick="radical-kern-after-degree" glib:name="HB_OT_MATH_CONSTANT_RADICAL_KERN_AFTER_DEGREE">
      </member>
      <member name="radical_degree_bottom_raise_percent" value="55" c:identifier="HB_OT_MATH_CONSTANT_RADICAL_DEGREE_BOTTOM_RAISE_PERCENT" glib:nick="radical-degree-bottom-raise-percent" glib:name="HB_OT_MATH_CONSTANT_RADICAL_DEGREE_BOTTOM_RAISE_PERCENT">
      </member>
    </enumeration>
    <function name="ot_math_get_constant" c:identifier="hb_ot_math_get_constant" version="1.3.3">
      <doc xml:space="preserve">Fetches the specified math constant. For most constants, the value returned
is an #hb_position_t.

However, if the requested constant is #HB_OT_MATH_CONSTANT_SCRIPT_PERCENT_SCALE_DOWN,
#HB_OT_MATH_CONSTANT_SCRIPT_SCRIPT_PERCENT_SCALE_DOWN or
#HB_OT_MATH_CONSTANT_SCRIPT_PERCENT_SCALE_DOWN, then the return value is
an integer between 0 and 100 representing that percentage.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">the requested constant or zero</doc>
        <type name="position_t" c:type="hb_position_t"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="constant" transfer-ownership="none">
          <doc xml:space="preserve">#hb_ot_math_constant_t the constant to retrieve</doc>
          <type name="ot_math_constant_t" c:type="hb_ot_math_constant_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_math_get_glyph_assembly" c:identifier="hb_ot_math_get_glyph_assembly" version="1.3.3">
      <doc xml:space="preserve">Fetches the GlyphAssembly for the specified font, glyph index, and direction.
Returned are a list of #hb_ot_math_glyph_part_t glyph parts that can be
used to draw the glyph and an italics-correction value (if one is defined
in the font).

&lt;note&gt;The @direction parameter is only used to select between horizontal
or vertical directions for the construction. Even though all #hb_direction_t
values are accepted, only the result of #HB_DIRECTION_IS_HORIZONTAL is
considered.&lt;/note&gt;</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">the total number of parts in the glyph assembly</doc>
        <type name="guint" c:type="unsigned int"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="glyph" transfer-ownership="none">
          <doc xml:space="preserve">The index of the glyph to stretch</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="direction" transfer-ownership="none">
          <doc xml:space="preserve">direction of the stretching (horizontal or vertical)</doc>
          <type name="direction_t" c:type="hb_direction_t"/>
        </parameter>
        <parameter name="start_offset" transfer-ownership="none">
          <doc xml:space="preserve">offset of the first glyph part to retrieve</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="parts_count" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">Input = maximum number of glyph parts to return;
              Output = actual number of parts returned</doc>
          <type name="guint" c:type="unsigned int*"/>
        </parameter>
        <parameter name="parts" direction="out" caller-allocates="1" transfer-ownership="none">
          <doc xml:space="preserve">the glyph parts returned</doc>
          <array length="4" zero-terminated="0" c:type="hb_ot_math_glyph_part_t*">
            <type name="ot_math_glyph_part_t" c:type="hb_ot_math_glyph_part_t"/>
          </array>
        </parameter>
        <parameter name="italics_correction" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">italics correction of the glyph assembly</doc>
          <type name="position_t" c:type="hb_position_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_math_get_glyph_italics_correction" c:identifier="hb_ot_math_get_glyph_italics_correction" version="1.3.3">
      <doc xml:space="preserve">Fetches an italics-correction value (if one exists) for the specified
glyph index.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">the italics correction of the glyph or zero</doc>
        <type name="position_t" c:type="hb_position_t"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="glyph" transfer-ownership="none">
          <doc xml:space="preserve">The glyph index from which to retrieve the value</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_math_get_glyph_kerning" c:identifier="hb_ot_math_get_glyph_kerning" version="1.3.3">
      <doc xml:space="preserve">Fetches the math kerning (cut-ins) value for the specified font, glyph index, and
@kern.

If the MathKern table is found, the function examines it to find a height
value that is greater or equal to @correction_height. If such a height
value is found, corresponding kerning value from the table is returned. If
no such height value is found, the last kerning value is returned.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">requested kerning value or zero</doc>
        <type name="position_t" c:type="hb_position_t"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="glyph" transfer-ownership="none">
          <doc xml:space="preserve">The glyph index from which to retrieve the value</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="kern" transfer-ownership="none">
          <doc xml:space="preserve">The #hb_ot_math_kern_t from which to retrieve the value</doc>
          <type name="ot_math_kern_t" c:type="hb_ot_math_kern_t"/>
        </parameter>
        <parameter name="correction_height" transfer-ownership="none">
          <doc xml:space="preserve">the correction height to use to determine the kerning.</doc>
          <type name="position_t" c:type="hb_position_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_math_get_glyph_top_accent_attachment" c:identifier="hb_ot_math_get_glyph_top_accent_attachment" version="1.3.3">
      <doc xml:space="preserve">Fetches a top-accent-attachment value (if one exists) for the specified
glyph index.

For any glyph that does not have a top-accent-attachment value - that is,
a glyph not covered by the `MathTopAccentAttachment` table (or, when
@font has no `MathTopAccentAttachment` table or no `MATH` table, any
glyph) - the function synthesizes a value, returning the position at
one-half the glyph's advance width.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">the top accent attachment of the glyph or 0.5 * the advance
              width of @glyph</doc>
        <type name="position_t" c:type="hb_position_t"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="glyph" transfer-ownership="none">
          <doc xml:space="preserve">The glyph index from which to retrieve the value</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_math_get_glyph_variants" c:identifier="hb_ot_math_get_glyph_variants" version="1.3.3">
      <doc xml:space="preserve">Fetches the MathGlyphConstruction for the specified font, glyph index, and
direction. The corresponding list of size variants is returned as a list of
#hb_ot_math_glyph_variant_t structs.

&lt;note&gt;The @direction parameter is only used to select between horizontal
or vertical directions for the construction. Even though all #hb_direction_t
values are accepted, only the result of #HB_DIRECTION_IS_HORIZONTAL is
considered.&lt;/note&gt;</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">the total number of size variants available or zero</doc>
        <type name="guint" c:type="unsigned int"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="glyph" transfer-ownership="none">
          <doc xml:space="preserve">The index of the glyph to stretch</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="direction" transfer-ownership="none">
          <doc xml:space="preserve">The direction of the stretching (horizontal or vertical)</doc>
          <type name="direction_t" c:type="hb_direction_t"/>
        </parameter>
        <parameter name="start_offset" transfer-ownership="none">
          <doc xml:space="preserve">offset of the first variant to retrieve</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="variants_count" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">Input = the maximum number of variants to return;
                          Output = the actual number of variants returned</doc>
          <type name="guint" c:type="unsigned int*"/>
        </parameter>
        <parameter name="variants" direction="out" caller-allocates="1" transfer-ownership="none">
          <doc xml:space="preserve">array of variants returned</doc>
          <array length="4" zero-terminated="0" c:type="hb_ot_math_glyph_variant_t*">
            <type name="ot_math_glyph_variant_t" c:type="hb_ot_math_glyph_variant_t"/>
          </array>
        </parameter>
      </parameters>
    </function>
    <function name="ot_math_get_min_connector_overlap" c:identifier="hb_ot_math_get_min_connector_overlap" version="1.3.3">
      <doc xml:space="preserve">Fetches the MathVariants table for the specified font and returns the
minimum overlap of connecting glyphs that are required to draw a glyph
assembly in the specified direction.

&lt;note&gt;The @direction parameter is only used to select between horizontal
or vertical directions for the construction. Even though all #hb_direction_t
values are accepted, only the result of #HB_DIRECTION_IS_HORIZONTAL is
considered.&lt;/note&gt;</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">requested minimum connector overlap or zero</doc>
        <type name="position_t" c:type="hb_position_t"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="direction" transfer-ownership="none">
          <doc xml:space="preserve">direction of the stretching (horizontal or vertical)</doc>
          <type name="direction_t" c:type="hb_direction_t"/>
        </parameter>
      </parameters>
    </function>
    <bitfield name="ot_math_glyph_part_flags_t" version="1.3.3" glib:type-name="hb_ot_math_glyph_part_flags_t" glib:get-type="hb_gobject_ot_math_glyph_part_flags_get_type" c:type="hb_ot_math_glyph_part_flags_t">
      <doc xml:space="preserve">Flags for math glyph parts.</doc>
      <member name="extender" value="1" c:identifier="HB_OT_MATH_GLYPH_PART_FLAG_EXTENDER" glib:nick="extender" glib:name="HB_OT_MATH_GLYPH_PART_FLAG_EXTENDER">
      </member>
    </bitfield>
    <record name="ot_math_glyph_part_t" c:type="hb_ot_math_glyph_part_t" version="1.3.3" glib:type-name="hb_ot_math_glyph_part_t" glib:get-type="hb_gobject_ot_math_glyph_part_get_type" c:symbol-prefix="gobject_ot_math_glyph_part">
      <doc xml:space="preserve">Data type to hold information for a "part" component of a math-variant glyph.
Large variants for stretchable math glyphs (such as parentheses) can be constructed
on the fly from parts.</doc>
      <field name="glyph" writable="1">
        <doc xml:space="preserve">The glyph index of the variant part</doc>
        <type name="codepoint_t" c:type="hb_codepoint_t"/>
      </field>
      <field name="start_connector_length" writable="1">
        <doc xml:space="preserve">The length of the connector on the starting side of the variant part</doc>
        <type name="position_t" c:type="hb_position_t"/>
      </field>
      <field name="end_connector_length" writable="1">
        <doc xml:space="preserve">The length of the connector on the ending side of the variant part</doc>
        <type name="position_t" c:type="hb_position_t"/>
      </field>
      <field name="full_advance" writable="1">
        <doc xml:space="preserve">The total advance of the part</doc>
        <type name="position_t" c:type="hb_position_t"/>
      </field>
      <field name="flags" writable="1">
        <doc xml:space="preserve">#hb_ot_math_glyph_part_flags_t flags for the part</doc>
        <type name="ot_math_glyph_part_flags_t" c:type="hb_ot_math_glyph_part_flags_t"/>
      </field>
    </record>
    <record name="ot_math_glyph_variant_t" c:type="hb_ot_math_glyph_variant_t" version="1.3.3" glib:type-name="hb_ot_math_glyph_variant_t" glib:get-type="hb_gobject_ot_math_glyph_variant_get_type" c:symbol-prefix="gobject_ot_math_glyph_variant">
      <doc xml:space="preserve">Data type to hold math-variant information for a glyph.</doc>
      <field name="glyph" writable="1">
        <doc xml:space="preserve">The glyph index of the variant</doc>
        <type name="codepoint_t" c:type="hb_codepoint_t"/>
      </field>
      <field name="advance" writable="1">
        <doc xml:space="preserve">The advance width of the variant</doc>
        <type name="position_t" c:type="hb_position_t"/>
      </field>
    </record>
    <function name="ot_math_has_data" c:identifier="hb_ot_math_has_data" version="1.3.3">
      <doc xml:space="preserve">Tests whether a face has a `MATH` table.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">true if the table is found, false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">#hb_face_t to test</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_math_is_glyph_extended_shape" c:identifier="hb_ot_math_is_glyph_extended_shape" version="1.3.3">
      <doc xml:space="preserve">Tests whether the given glyph index is an extended shape in the face.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">true if the glyph is an extended shape, false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">#hb_face_t to work upon</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="glyph" transfer-ownership="none">
          <doc xml:space="preserve">The glyph index to test</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
      </parameters>
    </function>
    <enumeration name="ot_math_kern_t" version="1.3.3" glib:type-name="hb_ot_math_kern_t" glib:get-type="hb_gobject_ot_math_kern_get_type" c:type="hb_ot_math_kern_t">
      <doc xml:space="preserve">The math kerning-table types defined for the four corners
of a glyph.</doc>
      <member name="top_right" value="0" c:identifier="HB_OT_MATH_KERN_TOP_RIGHT" glib:nick="top-right" glib:name="HB_OT_MATH_KERN_TOP_RIGHT">
      </member>
      <member name="top_left" value="1" c:identifier="HB_OT_MATH_KERN_TOP_LEFT" glib:nick="top-left" glib:name="HB_OT_MATH_KERN_TOP_LEFT">
      </member>
      <member name="bottom_right" value="2" c:identifier="HB_OT_MATH_KERN_BOTTOM_RIGHT" glib:nick="bottom-right" glib:name="HB_OT_MATH_KERN_BOTTOM_RIGHT">
      </member>
      <member name="bottom_left" value="3" c:identifier="HB_OT_MATH_KERN_BOTTOM_LEFT" glib:nick="bottom-left" glib:name="HB_OT_MATH_KERN_BOTTOM_LEFT">
      </member>
    </enumeration>
    <function name="ot_meta_get_entry_tags" c:identifier="hb_ot_meta_get_entry_tags" version="2.6.0">
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">Number of all available feature types.</doc>
        <type name="guint" c:type="unsigned int"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">a face object</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="start_offset" transfer-ownership="none">
          <doc xml:space="preserve">iteration's start offset</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="entries_count" direction="out" caller-allocates="0" transfer-ownership="full" nullable="1">
          <doc xml:space="preserve">buffer size as input, filled size as output</doc>
          <type name="guint" c:type="unsigned int*"/>
        </parameter>
        <parameter name="entries" direction="out" caller-allocates="1" transfer-ownership="none">
          <doc xml:space="preserve">entries tags buffer</doc>
          <array length="2" zero-terminated="0" c:type="hb_ot_meta_tag_t*">
            <type name="ot_meta_tag_t" c:type="hb_ot_meta_tag_t"/>
          </array>
        </parameter>
      </parameters>
    </function>
    <function name="ot_meta_reference_entry" c:identifier="hb_ot_meta_reference_entry" version="2.6.0">
      <doc xml:space="preserve">It fetches metadata entry of a given tag from a font.</doc>
      <return-value transfer-ownership="full">
        <doc xml:space="preserve">A blob containing the blob.</doc>
        <type name="blob_t" c:type="hb_blob_t*"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">a #hb_face_t object.</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="meta_tag" transfer-ownership="none">
          <doc xml:space="preserve">tag of metadata you like to have.</doc>
          <type name="ot_meta_tag_t" c:type="hb_ot_meta_tag_t"/>
        </parameter>
      </parameters>
    </function>
    <enumeration name="ot_meta_tag_t" version="2.6.0" glib:type-name="hb_ot_meta_tag_t" glib:get-type="hb_gobject_ot_meta_tag_get_type" c:type="hb_ot_meta_tag_t">
      <doc xml:space="preserve">Known metadata tags from https://docs.microsoft.com/en-us/typography/opentype/spec/meta</doc>
      <member name="design_languages" value="1684827751" c:identifier="HB_OT_META_TAG_DESIGN_LANGUAGES" glib:nick="design-languages" glib:name="HB_OT_META_TAG_DESIGN_LANGUAGES">
        <doc xml:space="preserve">Design languages. Text, using only
Basic Latin (ASCII) characters. Indicates languages and/or scripts
for the user audiences that the font was primarily designed for.</doc>
      </member>
      <member name="supported_languages" value="1936485991" c:identifier="HB_OT_META_TAG_SUPPORTED_LANGUAGES" glib:nick="supported-languages" glib:name="HB_OT_META_TAG_SUPPORTED_LANGUAGES">
        <doc xml:space="preserve">Supported languages. Text, using
only Basic Latin (ASCII) characters. Indicates languages and/or scripts
that the font is declared to be capable of supporting.</doc>
      </member>
    </enumeration>
    <function name="ot_metrics_get_position" c:identifier="hb_ot_metrics_get_position" version="2.6.0">
      <doc xml:space="preserve">It fetches metrics value corresponding to a given tag from a font.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">Whether found the requested metrics in the font.</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">a #hb_font_t object.</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="metrics_tag" transfer-ownership="none">
          <doc xml:space="preserve">tag of metrics value you like to fetch.</doc>
          <type name="ot_metrics_tag_t" c:type="hb_ot_metrics_tag_t"/>
        </parameter>
        <parameter name="position" direction="out" caller-allocates="0" transfer-ownership="full" optional="1" allow-none="1">
          <doc xml:space="preserve">result of metrics value from the font.</doc>
          <type name="position_t" c:type="hb_position_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_metrics_get_variation" c:identifier="hb_ot_metrics_get_variation" version="2.6.0">
      <return-value transfer-ownership="none">
        <type name="gfloat" c:type="float"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="metrics_tag" transfer-ownership="none">
          <type name="ot_metrics_tag_t" c:type="hb_ot_metrics_tag_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_metrics_get_x_variation" c:identifier="hb_ot_metrics_get_x_variation" version="2.6.0">
      <return-value transfer-ownership="none">
        <type name="position_t" c:type="hb_position_t"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="metrics_tag" transfer-ownership="none">
          <type name="ot_metrics_tag_t" c:type="hb_ot_metrics_tag_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_metrics_get_y_variation" c:identifier="hb_ot_metrics_get_y_variation" version="2.6.0">
      <return-value transfer-ownership="none">
        <type name="position_t" c:type="hb_position_t"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="metrics_tag" transfer-ownership="none">
          <type name="ot_metrics_tag_t" c:type="hb_ot_metrics_tag_t"/>
        </parameter>
      </parameters>
    </function>
    <enumeration name="ot_metrics_tag_t" version="2.6.0" glib:type-name="hb_ot_metrics_tag_t" glib:get-type="hb_gobject_ot_metrics_tag_get_type" c:type="hb_ot_metrics_tag_t">
      <doc xml:space="preserve">From https://docs.microsoft.com/en-us/typography/opentype/spec/mvar#value-tags</doc>
      <member name="horizontal_ascender" value="1751216995" c:identifier="HB_OT_METRICS_TAG_HORIZONTAL_ASCENDER" glib:nick="horizontal-ascender" glib:name="HB_OT_METRICS_TAG_HORIZONTAL_ASCENDER">
        <doc xml:space="preserve">horizontal ascender.</doc>
      </member>
      <member name="horizontal_descender" value="1751413603" c:identifier="HB_OT_METRICS_TAG_HORIZONTAL_DESCENDER" glib:nick="horizontal-descender" glib:name="HB_OT_METRICS_TAG_HORIZONTAL_DESCENDER">
        <doc xml:space="preserve">horizontal descender.</doc>
      </member>
      <member name="horizontal_line_gap" value="1751934832" c:identifier="HB_OT_METRICS_TAG_HORIZONTAL_LINE_GAP" glib:nick="horizontal-line-gap" glib:name="HB_OT_METRICS_TAG_HORIZONTAL_LINE_GAP">
        <doc xml:space="preserve">horizontal line gap.</doc>
      </member>
      <member name="horizontal_clipping_ascent" value="1751346273" c:identifier="HB_OT_METRICS_TAG_HORIZONTAL_CLIPPING_ASCENT" glib:nick="horizontal-clipping-ascent" glib:name="HB_OT_METRICS_TAG_HORIZONTAL_CLIPPING_ASCENT">
        <doc xml:space="preserve">horizontal clipping ascent.</doc>
      </member>
      <member name="horizontal_clipping_descent" value="1751346276" c:identifier="HB_OT_METRICS_TAG_HORIZONTAL_CLIPPING_DESCENT" glib:nick="horizontal-clipping-descent" glib:name="HB_OT_METRICS_TAG_HORIZONTAL_CLIPPING_DESCENT">
        <doc xml:space="preserve">horizontal clipping descent.</doc>
      </member>
      <member name="vertical_ascender" value="1986098019" c:identifier="HB_OT_METRICS_TAG_VERTICAL_ASCENDER" glib:nick="vertical-ascender" glib:name="HB_OT_METRICS_TAG_VERTICAL_ASCENDER">
        <doc xml:space="preserve">vertical ascender.</doc>
      </member>
      <member name="vertical_descender" value="1986294627" c:identifier="HB_OT_METRICS_TAG_VERTICAL_DESCENDER" glib:nick="vertical-descender" glib:name="HB_OT_METRICS_TAG_VERTICAL_DESCENDER">
        <doc xml:space="preserve">vertical descender.</doc>
      </member>
      <member name="vertical_line_gap" value="1986815856" c:identifier="HB_OT_METRICS_TAG_VERTICAL_LINE_GAP" glib:nick="vertical-line-gap" glib:name="HB_OT_METRICS_TAG_VERTICAL_LINE_GAP">
        <doc xml:space="preserve">vertical line gap.</doc>
      </member>
      <member name="horizontal_caret_rise" value="1751347827" c:identifier="HB_OT_METRICS_TAG_HORIZONTAL_CARET_RISE" glib:nick="horizontal-caret-rise" glib:name="HB_OT_METRICS_TAG_HORIZONTAL_CARET_RISE">
        <doc xml:space="preserve">horizontal caret rise.</doc>
      </member>
      <member name="horizontal_caret_run" value="1751347822" c:identifier="HB_OT_METRICS_TAG_HORIZONTAL_CARET_RUN" glib:nick="horizontal-caret-run" glib:name="HB_OT_METRICS_TAG_HORIZONTAL_CARET_RUN">
        <doc xml:space="preserve">horizontal caret run.</doc>
      </member>
      <member name="horizontal_caret_offset" value="1751347046" c:identifier="HB_OT_METRICS_TAG_HORIZONTAL_CARET_OFFSET" glib:nick="horizontal-caret-offset" glib:name="HB_OT_METRICS_TAG_HORIZONTAL_CARET_OFFSET">
        <doc xml:space="preserve">horizontal caret offset.</doc>
      </member>
      <member name="vertical_caret_rise" value="1986228851" c:identifier="HB_OT_METRICS_TAG_VERTICAL_CARET_RISE" glib:nick="vertical-caret-rise" glib:name="HB_OT_METRICS_TAG_VERTICAL_CARET_RISE">
        <doc xml:space="preserve">vertical caret rise.</doc>
      </member>
      <member name="vertical_caret_run" value="1986228846" c:identifier="HB_OT_METRICS_TAG_VERTICAL_CARET_RUN" glib:nick="vertical-caret-run" glib:name="HB_OT_METRICS_TAG_VERTICAL_CARET_RUN">
        <doc xml:space="preserve">vertical caret run.</doc>
      </member>
      <member name="vertical_caret_offset" value="1986228070" c:identifier="HB_OT_METRICS_TAG_VERTICAL_CARET_OFFSET" glib:nick="vertical-caret-offset" glib:name="HB_OT_METRICS_TAG_VERTICAL_CARET_OFFSET">
        <doc xml:space="preserve">vertical caret offset.</doc>
      </member>
      <member name="x_height" value="2020108148" c:identifier="HB_OT_METRICS_TAG_X_HEIGHT" glib:nick="x-height" glib:name="HB_OT_METRICS_TAG_X_HEIGHT">
        <doc xml:space="preserve">x height.</doc>
      </member>
      <member name="cap_height" value="1668311156" c:identifier="HB_OT_METRICS_TAG_CAP_HEIGHT" glib:nick="cap-height" glib:name="HB_OT_METRICS_TAG_CAP_HEIGHT">
        <doc xml:space="preserve">cap height.</doc>
      </member>
      <member name="subscript_em_x_size" value="1935833203" c:identifier="HB_OT_METRICS_TAG_SUBSCRIPT_EM_X_SIZE" glib:nick="subscript-em-x-size" glib:name="HB_OT_METRICS_TAG_SUBSCRIPT_EM_X_SIZE">
        <doc xml:space="preserve">subscript em x size.</doc>
      </member>
      <member name="subscript_em_y_size" value="1935833459" c:identifier="HB_OT_METRICS_TAG_SUBSCRIPT_EM_Y_SIZE" glib:nick="subscript-em-y-size" glib:name="HB_OT_METRICS_TAG_SUBSCRIPT_EM_Y_SIZE">
        <doc xml:space="preserve">subscript em y size.</doc>
      </member>
      <member name="subscript_em_x_offset" value="1935833199" c:identifier="HB_OT_METRICS_TAG_SUBSCRIPT_EM_X_OFFSET" glib:nick="subscript-em-x-offset" glib:name="HB_OT_METRICS_TAG_SUBSCRIPT_EM_X_OFFSET">
        <doc xml:space="preserve">subscript em x offset.</doc>
      </member>
      <member name="subscript_em_y_offset" value="1935833455" c:identifier="HB_OT_METRICS_TAG_SUBSCRIPT_EM_Y_OFFSET" glib:nick="subscript-em-y-offset" glib:name="HB_OT_METRICS_TAG_SUBSCRIPT_EM_Y_OFFSET">
        <doc xml:space="preserve">subscript em y offset.</doc>
      </member>
      <member name="superscript_em_x_size" value="1936750707" c:identifier="HB_OT_METRICS_TAG_SUPERSCRIPT_EM_X_SIZE" glib:nick="superscript-em-x-size" glib:name="HB_OT_METRICS_TAG_SUPERSCRIPT_EM_X_SIZE">
        <doc xml:space="preserve">superscript em x size.</doc>
      </member>
      <member name="superscript_em_y_size" value="1936750963" c:identifier="HB_OT_METRICS_TAG_SUPERSCRIPT_EM_Y_SIZE" glib:nick="superscript-em-y-size" glib:name="HB_OT_METRICS_TAG_SUPERSCRIPT_EM_Y_SIZE">
        <doc xml:space="preserve">superscript em y size.</doc>
      </member>
      <member name="superscript_em_x_offset" value="1936750703" c:identifier="HB_OT_METRICS_TAG_SUPERSCRIPT_EM_X_OFFSET" glib:nick="superscript-em-x-offset" glib:name="HB_OT_METRICS_TAG_SUPERSCRIPT_EM_X_OFFSET">
        <doc xml:space="preserve">superscript em x offset.</doc>
      </member>
      <member name="superscript_em_y_offset" value="1936750959" c:identifier="HB_OT_METRICS_TAG_SUPERSCRIPT_EM_Y_OFFSET" glib:nick="superscript-em-y-offset" glib:name="HB_OT_METRICS_TAG_SUPERSCRIPT_EM_Y_OFFSET">
        <doc xml:space="preserve">superscript em y offset.</doc>
      </member>
      <member name="strikeout_size" value="1937011315" c:identifier="HB_OT_METRICS_TAG_STRIKEOUT_SIZE" glib:nick="strikeout-size" glib:name="HB_OT_METRICS_TAG_STRIKEOUT_SIZE">
        <doc xml:space="preserve">strikeout size.</doc>
      </member>
      <member name="strikeout_offset" value="1937011311" c:identifier="HB_OT_METRICS_TAG_STRIKEOUT_OFFSET" glib:nick="strikeout-offset" glib:name="HB_OT_METRICS_TAG_STRIKEOUT_OFFSET">
        <doc xml:space="preserve">strikeout offset.</doc>
      </member>
      <member name="underline_size" value="1970168947" c:identifier="HB_OT_METRICS_TAG_UNDERLINE_SIZE" glib:nick="underline-size" glib:name="HB_OT_METRICS_TAG_UNDERLINE_SIZE">
        <doc xml:space="preserve">underline size.</doc>
      </member>
      <member name="underline_offset" value="1970168943" c:identifier="HB_OT_METRICS_TAG_UNDERLINE_OFFSET" glib:nick="underline-offset" glib:name="HB_OT_METRICS_TAG_UNDERLINE_OFFSET">
        <doc xml:space="preserve">underline offset.</doc>
      </member>
    </enumeration>
    <record name="ot_name_entry_t" c:type="hb_ot_name_entry_t" version="2.1.0">
      <doc xml:space="preserve">Structure representing a name ID in a particular language.</doc>
      <field name="name_id" writable="1">
        <doc xml:space="preserve">name ID</doc>
        <type name="ot_name_id_t" c:type="hb_ot_name_id_t"/>
      </field>
      <field name="var" readable="0" private="1">
        <type name="var_int_t" c:type="hb_var_int_t"/>
      </field>
      <field name="language" writable="1">
        <doc xml:space="preserve">language</doc>
        <type name="language_t" c:type="hb_language_t"/>
      </field>
    </record>
    <function name="ot_name_get_utf16" c:identifier="hb_ot_name_get_utf16" version="2.1.0">
      <doc xml:space="preserve">Fetches a font name from the OpenType 'name' table.
If @language is #HB_LANGUAGE_INVALID, English ("en") is assumed.
Returns string in UTF-16 encoding.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">full length of the requested string, or 0 if not found.</doc>
        <type name="guint" c:type="unsigned int"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">font face.</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="name_id" transfer-ownership="none">
          <doc xml:space="preserve">OpenType name identifier to fetch.</doc>
          <type name="ot_name_id_t" c:type="hb_ot_name_id_t"/>
        </parameter>
        <parameter name="language" transfer-ownership="none">
          <doc xml:space="preserve">language to fetch the name for.</doc>
          <type name="language_t" c:type="hb_language_t"/>
        </parameter>
        <parameter name="text_size" direction="out" caller-allocates="0" transfer-ownership="full" nullable="1">
          <doc xml:space="preserve">input size of @text buffer, and output size of
                                  text written to buffer.</doc>
          <type name="guint" c:type="unsigned int*"/>
        </parameter>
        <parameter name="text" direction="out" caller-allocates="1" transfer-ownership="none">
          <doc xml:space="preserve">buffer to write fetched name into.</doc>
          <array length="3" zero-terminated="0" c:type="uint16_t*">
            <type name="guint16" c:type="uint16_t"/>
          </array>
        </parameter>
      </parameters>
    </function>
    <function name="ot_name_get_utf32" c:identifier="hb_ot_name_get_utf32" version="2.1.0">
      <doc xml:space="preserve">Fetches a font name from the OpenType 'name' table.
If @language is #HB_LANGUAGE_INVALID, English ("en") is assumed.
Returns string in UTF-32 encoding.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">full length of the requested string, or 0 if not found.</doc>
        <type name="guint" c:type="unsigned int"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">font face.</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="name_id" transfer-ownership="none">
          <doc xml:space="preserve">OpenType name identifier to fetch.</doc>
          <type name="ot_name_id_t" c:type="hb_ot_name_id_t"/>
        </parameter>
        <parameter name="language" transfer-ownership="none">
          <doc xml:space="preserve">language to fetch the name for.</doc>
          <type name="language_t" c:type="hb_language_t"/>
        </parameter>
        <parameter name="text_size" direction="out" caller-allocates="0" transfer-ownership="full" nullable="1">
          <doc xml:space="preserve">input size of @text buffer, and output size of
                                  text written to buffer.</doc>
          <type name="guint" c:type="unsigned int*"/>
        </parameter>
        <parameter name="text" direction="out" caller-allocates="1" transfer-ownership="none">
          <doc xml:space="preserve">buffer to write fetched name into.</doc>
          <array length="3" zero-terminated="0" c:type="uint32_t*">
            <type name="guint32" c:type="uint32_t"/>
          </array>
        </parameter>
      </parameters>
    </function>
    <function name="ot_name_get_utf8" c:identifier="hb_ot_name_get_utf8" version="2.1.0">
      <doc xml:space="preserve">Fetches a font name from the OpenType 'name' table.
If @language is #HB_LANGUAGE_INVALID, English ("en") is assumed.
Returns string in UTF-8 encoding.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">full length of the requested string, or 0 if not found.</doc>
        <type name="guint" c:type="unsigned int"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">font face.</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="name_id" transfer-ownership="none">
          <doc xml:space="preserve">OpenType name identifier to fetch.</doc>
          <type name="ot_name_id_t" c:type="hb_ot_name_id_t"/>
        </parameter>
        <parameter name="language" transfer-ownership="none">
          <doc xml:space="preserve">language to fetch the name for.</doc>
          <type name="language_t" c:type="hb_language_t"/>
        </parameter>
        <parameter name="text_size" direction="out" caller-allocates="0" transfer-ownership="full" nullable="1">
          <doc xml:space="preserve">input size of @text buffer, and output size of
                                  text written to buffer.</doc>
          <type name="guint" c:type="unsigned int*"/>
        </parameter>
        <parameter name="text" direction="out" caller-allocates="1" transfer-ownership="none">
          <doc xml:space="preserve">buffer to write fetched name into.</doc>
          <array length="3" zero-terminated="0" c:type="char*">
            <type name="utf8" c:type="char"/>
          </array>
        </parameter>
      </parameters>
    </function>
    <function name="ot_name_list_names" c:identifier="hb_ot_name_list_names" version="2.1.0">
      <doc xml:space="preserve">Enumerates all available name IDs and language combinations. Returned
array is owned by the @face and should not be modified.  It can be
used as long as @face is alive.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">Array of available name entries.</doc>
        <array length="1" zero-terminated="0" c:type="const hb_ot_name_entry_t*">
          <type name="ot_name_entry_t" c:type="hb_ot_name_entry_t"/>
        </array>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">font face.</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="num_entries" direction="out" caller-allocates="0" transfer-ownership="full" optional="1" allow-none="1">
          <doc xml:space="preserve">number of returned entries.</doc>
          <type name="guint" c:type="unsigned int*"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_shape_glyphs_closure" c:identifier="hb_ot_shape_glyphs_closure" version="0.9.2">
      <doc xml:space="preserve">Computes the transitive closure of glyphs needed for a specified
input buffer under the given font and feature list. The closure is
computed as a set, not as a list.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">#hb_font_t to work upon</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">The input buffer to compute from</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
        <parameter name="features" transfer-ownership="none">
          <doc xml:space="preserve">The features enabled on the buffer</doc>
          <array length="3" zero-terminated="0" c:type="const hb_feature_t*">
            <type name="feature_t" c:type="hb_feature_t"/>
          </array>
        </parameter>
        <parameter name="num_features" transfer-ownership="none">
          <doc xml:space="preserve">The number of features enabled on the buffer</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="glyphs" direction="out" caller-allocates="1" transfer-ownership="none">
          <doc xml:space="preserve">The #hb_set_t set of glyphs comprising the transitive closure of the query</doc>
          <type name="set_t" c:type="hb_set_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_tag_from_language" c:identifier="hb_ot_tag_from_language">
      <return-value transfer-ownership="none">
        <type name="tag_t" c:type="hb_tag_t"/>
      </return-value>
      <parameters>
        <parameter name="language" transfer-ownership="none">
          <type name="language_t" c:type="hb_language_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_tag_to_language" c:identifier="hb_ot_tag_to_language" version="0.9.2">
      <return-value transfer-ownership="none">
        <type name="language_t" c:type="hb_language_t"/>
      </return-value>
      <parameters>
        <parameter name="tag" transfer-ownership="none">
          <type name="tag_t" c:type="hb_tag_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_tag_to_script" c:identifier="hb_ot_tag_to_script">
      <return-value transfer-ownership="none">
        <type name="script_t" c:type="hb_script_t"/>
      </return-value>
      <parameters>
        <parameter name="tag" transfer-ownership="none">
          <type name="tag_t" c:type="hb_tag_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_tags_from_script" c:identifier="hb_ot_tags_from_script">
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="script" transfer-ownership="none">
          <type name="script_t" c:type="hb_script_t"/>
        </parameter>
        <parameter name="script_tag_1" transfer-ownership="none">
          <type name="tag_t" c:type="hb_tag_t*"/>
        </parameter>
        <parameter name="script_tag_2" transfer-ownership="none">
          <type name="tag_t" c:type="hb_tag_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_tags_from_script_and_language" c:identifier="hb_ot_tags_from_script_and_language" version="2.0.0">
      <doc xml:space="preserve">Converts an #hb_script_t and an #hb_language_t to script and language tags.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="script" transfer-ownership="none">
          <doc xml:space="preserve">an #hb_script_t to convert.</doc>
          <type name="script_t" c:type="hb_script_t"/>
        </parameter>
        <parameter name="language" transfer-ownership="none">
          <doc xml:space="preserve">an #hb_language_t to convert.</doc>
          <type name="language_t" c:type="hb_language_t"/>
        </parameter>
        <parameter name="script_count" transfer-ownership="none" nullable="1" allow-none="1">
          <doc xml:space="preserve">maximum number of script tags to retrieve (IN)
and actual number of script tags retrieved (OUT)</doc>
          <type name="guint" c:type="unsigned int*"/>
        </parameter>
        <parameter name="script_tags" direction="out" caller-allocates="0" transfer-ownership="full" optional="1" allow-none="1">
          <doc xml:space="preserve">array of size at least @script_count to store the
script tag results</doc>
          <type name="tag_t" c:type="hb_tag_t*"/>
        </parameter>
        <parameter name="language_count" transfer-ownership="none" nullable="1" allow-none="1">
          <doc xml:space="preserve">maximum number of language tags to retrieve
(IN) and actual number of language tags retrieved (OUT)</doc>
          <type name="guint" c:type="unsigned int*"/>
        </parameter>
        <parameter name="language_tags" direction="out" caller-allocates="0" transfer-ownership="full" optional="1" allow-none="1">
          <doc xml:space="preserve">array of size at least @language_count to store
the language tag results</doc>
          <type name="tag_t" c:type="hb_tag_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_tags_to_script_and_language" c:identifier="hb_ot_tags_to_script_and_language" version="2.0.0">
      <doc xml:space="preserve">Converts a script tag and a language tag to an #hb_script_t and an
#hb_language_t.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="script_tag" transfer-ownership="none">
          <doc xml:space="preserve">a script tag</doc>
          <type name="tag_t" c:type="hb_tag_t"/>
        </parameter>
        <parameter name="language_tag" transfer-ownership="none">
          <doc xml:space="preserve">a language tag</doc>
          <type name="tag_t" c:type="hb_tag_t"/>
        </parameter>
        <parameter name="script" transfer-ownership="none" nullable="1" allow-none="1">
          <doc xml:space="preserve">the #hb_script_t corresponding to @script_tag (OUT).</doc>
          <type name="script_t" c:type="hb_script_t*"/>
        </parameter>
        <parameter name="language" transfer-ownership="none" nullable="1" allow-none="1">
          <doc xml:space="preserve">the #hb_language_t corresponding to @script_tag and
@language_tag (OUT).</doc>
          <type name="language_t" c:type="hb_language_t*"/>
        </parameter>
      </parameters>
    </function>
    <bitfield name="ot_var_axis_flags_t" version="2.2.0" glib:type-name="hb_ot_var_axis_flags_t" glib:get-type="hb_gobject_ot_var_axis_flags_get_type" c:type="hb_ot_var_axis_flags_t">
      <member name="hidden" value="1" c:identifier="HB_OT_VAR_AXIS_FLAG_HIDDEN" glib:nick="hidden" glib:name="HB_OT_VAR_AXIS_FLAG_HIDDEN">
        <doc xml:space="preserve">The axis should not be exposed directly in user interfaces.</doc>
      </member>
    </bitfield>
    <record name="ot_var_axis_info_t" c:type="hb_ot_var_axis_info_t" version="2.2.0">
      <doc xml:space="preserve">Data type for holding variation-axis values.

The minimum, default, and maximum values are in un-normalized, user scales.

&lt;note&gt;Note: at present, the only flag defined for @flags is
#HB_OT_VAR_AXIS_FLAG_HIDDEN.&lt;/note&gt;</doc>
      <field name="axis_index" writable="1">
        <doc xml:space="preserve">Index of the axis in the variation-axis array</doc>
        <type name="guint" c:type="unsigned int"/>
      </field>
      <field name="tag" writable="1">
        <doc xml:space="preserve">The #hb_tag_t tag identifying the design variation of the axis</doc>
        <type name="tag_t" c:type="hb_tag_t"/>
      </field>
      <field name="name_id" writable="1">
        <doc xml:space="preserve">The `name` table Name ID that provides display names for the axis</doc>
        <type name="ot_name_id_t" c:type="hb_ot_name_id_t"/>
      </field>
      <field name="flags" writable="1">
        <doc xml:space="preserve">The #hb_ot_var_axis_flags_t flags for the axis</doc>
        <type name="ot_var_axis_flags_t" c:type="hb_ot_var_axis_flags_t"/>
      </field>
      <field name="min_value" writable="1">
        <doc xml:space="preserve">The mininum value on the variation axis that the font covers</doc>
        <type name="gfloat" c:type="float"/>
      </field>
      <field name="default_value" writable="1">
        <doc xml:space="preserve">The position on the variation axis corresponding to the font's defaults</doc>
        <type name="gfloat" c:type="float"/>
      </field>
      <field name="max_value" writable="1">
        <doc xml:space="preserve">The maximum value on the variation axis that the font covers</doc>
        <type name="gfloat" c:type="float"/>
      </field>
      <field name="reserved" readable="0" private="1">
        <type name="guint" c:type="unsigned int"/>
      </field>
    </record>
    <record name="ot_var_axis_t" c:type="hb_ot_var_axis_t" version="1.4.2" deprecated="1" deprecated-version="2.2.0">
      <field name="tag" writable="1">
        <type name="tag_t" c:type="hb_tag_t"/>
      </field>
      <field name="name_id" writable="1">
        <type name="ot_name_id_t" c:type="hb_ot_name_id_t"/>
      </field>
      <field name="min_value" writable="1">
        <type name="gfloat" c:type="float"/>
      </field>
      <field name="default_value" writable="1">
        <type name="gfloat" c:type="float"/>
      </field>
      <field name="max_value" writable="1">
        <type name="gfloat" c:type="float"/>
      </field>
    </record>
    <function name="ot_var_find_axis" c:identifier="hb_ot_var_find_axis" version="1.4.2" deprecated="1" deprecated-version="2.2.0">
      <doc xml:space="preserve">Fetches the variation-axis information corresponding to the specified axis tag
in the specified face.</doc>
      <doc-deprecated xml:space="preserve">- use hb_ot_var_find_axis_info() instead</doc-deprecated>
      <return-value transfer-ownership="none">
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">#hb_face_t to work upon</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="axis_tag" transfer-ownership="none">
          <doc xml:space="preserve">The #hb_tag_t of the variation axis to query</doc>
          <type name="tag_t" c:type="hb_tag_t"/>
        </parameter>
        <parameter name="axis_index" transfer-ownership="none">
          <doc xml:space="preserve">The index of the variation axis</doc>
          <type name="guint" c:type="unsigned int*"/>
        </parameter>
        <parameter name="axis_info" direction="out" caller-allocates="1" transfer-ownership="none">
          <doc xml:space="preserve">The #hb_ot_var_axis_info_t of the axis tag queried</doc>
          <type name="ot_var_axis_t" c:type="hb_ot_var_axis_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_var_find_axis_info" c:identifier="hb_ot_var_find_axis_info" version="2.2.0">
      <doc xml:space="preserve">Fetches the variation-axis information corresponding to the specified axis tag
in the specified face.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">true if data found, false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">#hb_face_t to work upon</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="axis_tag" transfer-ownership="none">
          <doc xml:space="preserve">The #hb_tag_t of the variation axis to query</doc>
          <type name="tag_t" c:type="hb_tag_t"/>
        </parameter>
        <parameter name="axis_info" direction="out" caller-allocates="1" transfer-ownership="none">
          <doc xml:space="preserve">The #hb_ot_var_axis_info_t of the axis tag queried</doc>
          <type name="ot_var_axis_info_t" c:type="hb_ot_var_axis_info_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_var_get_axes" c:identifier="hb_ot_var_get_axes" version="1.4.2" deprecated="1" deprecated-version="2.2.0">
      <doc xml:space="preserve">Fetches a list of all variation axes in the specified face. The list returned will begin
at the offset provided.</doc>
      <doc-deprecated xml:space="preserve">use hb_ot_var_get_axis_infos() instead</doc-deprecated>
      <return-value transfer-ownership="none">
        <type name="guint" c:type="unsigned int"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">#hb_face_t to work upon</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="start_offset" transfer-ownership="none">
          <doc xml:space="preserve">offset of the first lookup to retrieve</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="axes_count" direction="out" caller-allocates="0" transfer-ownership="full" nullable="1">
          <doc xml:space="preserve">Input = the maximum number of variation axes to return;
               Output = the actual number of variation axes returned (may be zero)</doc>
          <type name="guint" c:type="unsigned int*"/>
        </parameter>
        <parameter name="axes_array" direction="out" caller-allocates="1" transfer-ownership="none">
          <doc xml:space="preserve">The array of variation axes found</doc>
          <array length="2" zero-terminated="0" c:type="hb_ot_var_axis_t*">
            <type name="ot_var_axis_t" c:type="hb_ot_var_axis_t"/>
          </array>
        </parameter>
      </parameters>
    </function>
    <function name="ot_var_get_axis_count" c:identifier="hb_ot_var_get_axis_count" version="1.4.2">
      <doc xml:space="preserve">Fetches the number of OpenType variation axes included in the face.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">the number of variation axes defined</doc>
        <type name="guint" c:type="unsigned int"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">The #hb_face_t to work on</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_var_get_axis_infos" c:identifier="hb_ot_var_get_axis_infos" version="2.2.0">
      <doc xml:space="preserve">Fetches a list of all variation axes in the specified face. The list returned will begin
at the offset provided.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">the number of variation axes in the face</doc>
        <type name="guint" c:type="unsigned int"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">#hb_face_t to work upon</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="start_offset" transfer-ownership="none">
          <doc xml:space="preserve">offset of the first lookup to retrieve</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="axes_count" direction="out" caller-allocates="0" transfer-ownership="full" nullable="1">
          <doc xml:space="preserve">Input = the maximum number of variation axes to return;
               Output = the actual number of variation axes returned (may be zero)</doc>
          <type name="guint" c:type="unsigned int*"/>
        </parameter>
        <parameter name="axes_array" direction="out" caller-allocates="1" transfer-ownership="none">
          <doc xml:space="preserve">The array of variation axes found</doc>
          <array length="2" zero-terminated="0" c:type="hb_ot_var_axis_info_t*">
            <type name="ot_var_axis_info_t" c:type="hb_ot_var_axis_info_t"/>
          </array>
        </parameter>
      </parameters>
    </function>
    <function name="ot_var_get_named_instance_count" c:identifier="hb_ot_var_get_named_instance_count" version="2.2.0">
      <doc xml:space="preserve">Fetches the number of named instances included in the face.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">the number of named instances defined</doc>
        <type name="guint" c:type="unsigned int"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">The #hb_face_t to work on</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_var_has_data" c:identifier="hb_ot_var_has_data" version="1.4.2">
      <doc xml:space="preserve">Tests whether a face includes any OpenType variation data in the `fvar` table.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">true if data found, false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">The #hb_face_t to work on</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_var_named_instance_get_design_coords" c:identifier="hb_ot_var_named_instance_get_design_coords" version="2.2.0">
      <doc xml:space="preserve">Fetches the design-space coordinates corresponding to the given
named instance in the face.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">the number of variation axes in the face</doc>
        <type name="guint" c:type="unsigned int"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">The #hb_face_t to work on</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="instance_index" transfer-ownership="none">
          <doc xml:space="preserve">The index of the named instance to query</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="coords_length" direction="out" caller-allocates="0" transfer-ownership="full" nullable="1">
          <doc xml:space="preserve">Input = the maximum number of coordinates to return;
                Output = the actual number of coordinates returned (may be zero)</doc>
          <type name="guint" c:type="unsigned int*"/>
        </parameter>
        <parameter name="coords" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The array of coordinates found for the query</doc>
          <array length="2" zero-terminated="0" c:type="float*">
            <type name="gfloat" c:type="float"/>
          </array>
        </parameter>
      </parameters>
    </function>
    <function name="ot_var_named_instance_get_postscript_name_id" c:identifier="hb_ot_var_named_instance_get_postscript_name_id" version="2.2.0">
      <doc xml:space="preserve">Fetches the `name` table Name ID that provides display names for
the "PostScript name" defined for the given named instance in the face.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">the Name ID found for the PostScript name</doc>
        <type name="ot_name_id_t" c:type="hb_ot_name_id_t"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">The #hb_face_t to work on</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="instance_index" transfer-ownership="none">
          <doc xml:space="preserve">The index of the named instance to query</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_var_named_instance_get_subfamily_name_id" c:identifier="hb_ot_var_named_instance_get_subfamily_name_id" version="2.2.0">
      <doc xml:space="preserve">Fetches the `name` table Name ID that provides display names for
the "Subfamily name" defined for the given named instance in the face.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">the Name ID found for the Subfamily name</doc>
        <type name="ot_name_id_t" c:type="hb_ot_name_id_t"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">The #hb_face_t to work on</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="instance_index" transfer-ownership="none">
          <doc xml:space="preserve">The index of the named instance to query</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_var_normalize_coords" c:identifier="hb_ot_var_normalize_coords" version="1.4.2">
      <doc xml:space="preserve">Normalizes the given design-space coordinates. The minimum and maximum
values for the axis are mapped to the interval [-1,1], with the default
axis value mapped to 0.

Any additional scaling defined in the face's `avar` table is also
applied, as described at https://docs.microsoft.com/en-us/typography/opentype/spec/avar</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">The #hb_face_t to work on</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="coords_length" transfer-ownership="none">
          <doc xml:space="preserve">The length of the coordinate array</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="design_coords" transfer-ownership="none">
          <doc xml:space="preserve">The design-space coordinates to normalize</doc>
          <type name="gfloat" c:type="const float*"/>
        </parameter>
        <parameter name="normalized_coords" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The normalized coordinates</doc>
          <type name="gint" c:type="int*"/>
        </parameter>
      </parameters>
    </function>
    <function name="ot_var_normalize_variations" c:identifier="hb_ot_var_normalize_variations" version="1.4.2">
      <doc xml:space="preserve">Normalizes all of the coordinates in the given list of variation axes.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">The #hb_face_t to work on</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="variations" transfer-ownership="none">
          <doc xml:space="preserve">The array of variations to normalize</doc>
          <type name="variation_t" c:type="const hb_variation_t*"/>
        </parameter>
        <parameter name="variations_length" transfer-ownership="none">
          <doc xml:space="preserve">The number of variations to normalize</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="coords" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The array of normalized coordinates</doc>
          <array length="4" zero-terminated="0" c:type="int*">
            <type name="gint" c:type="int"/>
          </array>
        </parameter>
        <parameter name="coords_length" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The length of the coordinate array</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
      </parameters>
    </function>
    <callback name="reference_table_func_t" c:type="hb_reference_table_func_t">
      <return-value transfer-ownership="full">
        <type name="blob_t" c:type="hb_blob_t*"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="tag" transfer-ownership="none">
          <type name="tag_t" c:type="hb_tag_t"/>
        </parameter>
        <parameter name="user_data" transfer-ownership="none" nullable="1" allow-none="1" closure="2">
          <type name="gpointer" c:type="void*"/>
        </parameter>
      </parameters>
    </callback>
    <function name="script_from_iso15924_tag" c:identifier="hb_script_from_iso15924_tag" version="0.9.2">
      <doc xml:space="preserve">Converts an ISO 15924 script tag to a corresponding #hb_script_t.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">An #hb_script_t corresponding to the ISO 15924 tag.</doc>
        <type name="script_t" c:type="hb_script_t"/>
      </return-value>
      <parameters>
        <parameter name="tag" transfer-ownership="none">
          <doc xml:space="preserve">an #hb_tag_t representing an ISO 15924 tag.</doc>
          <type name="tag_t" c:type="hb_tag_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="script_from_string" c:identifier="hb_script_from_string" version="0.9.2">
      <doc xml:space="preserve">Converts a string @str representing an ISO 15924 script tag to a
corresponding #hb_script_t. Shorthand for hb_tag_from_string() then
hb_script_from_iso15924_tag().</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">An #hb_script_t corresponding to the ISO 15924 tag.</doc>
        <type name="script_t" c:type="hb_script_t"/>
      </return-value>
      <parameters>
        <parameter name="str" transfer-ownership="none">
          <doc xml:space="preserve">a string representing an
      ISO 15924 tag.</doc>
          <array length="1" zero-terminated="0" c:type="const char*">
            <type name="guint8"/>
          </array>
        </parameter>
        <parameter name="len" transfer-ownership="none">
          <doc xml:space="preserve">length of the @str, or -1 if it is %NULL-terminated.</doc>
          <type name="gint" c:type="int"/>
        </parameter>
      </parameters>
    </function>
    <function name="script_get_horizontal_direction" c:identifier="hb_script_get_horizontal_direction" version="0.9.2">
      <doc xml:space="preserve">Fetches the #hb_direction_t of a script when it is
set horizontally. All right-to-left scripts will return
#HB_DIRECTION_RTL. All left-to-right scripts will return
#HB_DIRECTION_LTR.  Scripts that can be written either
horizontally or vertically will return #HB_DIRECTION_INVALID.
Unknown scripts will return #HB_DIRECTION_LTR.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">The horizontal #hb_direction_t of @script</doc>
        <type name="direction_t" c:type="hb_direction_t"/>
      </return-value>
      <parameters>
        <parameter name="script" transfer-ownership="none">
          <doc xml:space="preserve">The #hb_script_t to query</doc>
          <type name="script_t" c:type="hb_script_t"/>
        </parameter>
      </parameters>
    </function>
    <enumeration name="script_t" glib:type-name="hb_script_t" glib:get-type="hb_gobject_script_get_type" c:type="hb_script_t">
      <doc xml:space="preserve">Data type for scripts. Each #hb_script_t's value is an #hb_tag_t corresponding
to the four-letter values defined by [ISO 15924](https://unicode.org/iso15924/).

See also the Script (sc) property of the Unicode Character Database.</doc>
      <member name="common" value="1517910393" c:identifier="HB_SCRIPT_COMMON" glib:nick="common" glib:name="HB_SCRIPT_COMMON">
        <doc xml:space="preserve">HB_TAG ('Z','y','y','y')</doc>
      </member>
      <member name="inherited" value="1516858984" c:identifier="HB_SCRIPT_INHERITED" glib:nick="inherited" glib:name="HB_SCRIPT_INHERITED">
        <doc xml:space="preserve">HB_TAG ('Z','i','n','h')</doc>
      </member>
      <member name="unknown" value="1517976186" c:identifier="HB_SCRIPT_UNKNOWN" glib:nick="unknown" glib:name="HB_SCRIPT_UNKNOWN">
        <doc xml:space="preserve">HB_TAG ('Z','z','z','z')
@HB_SCRIPT_ARABIC
@HB_SCRIPT_ARMENIAN
@HB_SCRIPT_BENGALI
@HB_SCRIPT_CYRILLIC
@HB_SCRIPT_DEVANAGARI
@HB_SCRIPT_GEORGIAN
@HB_SCRIPT_GREEK
@HB_SCRIPT_GUJARATI
@HB_SCRIPT_GURMUKHI
@HB_SCRIPT_HANGUL
@HB_SCRIPT_HAN
@HB_SCRIPT_HEBREW
@HB_SCRIPT_HIRAGANA
@HB_SCRIPT_KANNADA
@HB_SCRIPT_KATAKANA
@HB_SCRIPT_LAO
@HB_SCRIPT_LATIN
@HB_SCRIPT_MALAYALAM
@HB_SCRIPT_ORIYA
@HB_SCRIPT_TAMIL
@HB_SCRIPT_TELUGU
@HB_SCRIPT_THAI
@HB_SCRIPT_TIBETAN
@HB_SCRIPT_BOPOMOFO
@HB_SCRIPT_BRAILLE
@HB_SCRIPT_CANADIAN_SYLLABICS
@HB_SCRIPT_CHEROKEE
@HB_SCRIPT_ETHIOPIC
@HB_SCRIPT_KHMER
@HB_SCRIPT_MONGOLIAN
@HB_SCRIPT_MYANMAR
@HB_SCRIPT_OGHAM
@HB_SCRIPT_RUNIC
@HB_SCRIPT_SINHALA
@HB_SCRIPT_SYRIAC
@HB_SCRIPT_THAANA
@HB_SCRIPT_YI
@HB_SCRIPT_DESERET
@HB_SCRIPT_GOTHIC
@HB_SCRIPT_OLD_ITALIC
@HB_SCRIPT_BUHID
@HB_SCRIPT_HANUNOO
@HB_SCRIPT_TAGALOG
@HB_SCRIPT_TAGBANWA
@HB_SCRIPT_CYPRIOT
@HB_SCRIPT_LIMBU
@HB_SCRIPT_LINEAR_B
@HB_SCRIPT_OSMANYA
@HB_SCRIPT_SHAVIAN
@HB_SCRIPT_TAI_LE
@HB_SCRIPT_UGARITIC
@HB_SCRIPT_BUGINESE
@HB_SCRIPT_COPTIC
@HB_SCRIPT_GLAGOLITIC
@HB_SCRIPT_KHAROSHTHI
@HB_SCRIPT_NEW_TAI_LUE
@HB_SCRIPT_OLD_PERSIAN
@HB_SCRIPT_SYLOTI_NAGRI
@HB_SCRIPT_TIFINAGH
@HB_SCRIPT_BALINESE
@HB_SCRIPT_CUNEIFORM
@HB_SCRIPT_NKO
@HB_SCRIPT_PHAGS_PA
@HB_SCRIPT_PHOENICIAN
@HB_SCRIPT_CARIAN
@HB_SCRIPT_CHAM
@HB_SCRIPT_KAYAH_LI
@HB_SCRIPT_LEPCHA
@HB_SCRIPT_LYCIAN
@HB_SCRIPT_LYDIAN
@HB_SCRIPT_OL_CHIKI
@HB_SCRIPT_REJANG
@HB_SCRIPT_SAURASHTRA
@HB_SCRIPT_SUNDANESE
@HB_SCRIPT_VAI
@HB_SCRIPT_AVESTAN
@HB_SCRIPT_BAMUM
@HB_SCRIPT_EGYPTIAN_HIEROGLYPHS
@HB_SCRIPT_IMPERIAL_ARAMAIC
@HB_SCRIPT_INSCRIPTIONAL_PAHLAVI
@HB_SCRIPT_INSCRIPTIONAL_PARTHIAN
@HB_SCRIPT_JAVANESE
@HB_SCRIPT_KAITHI
@HB_SCRIPT_LISU
@HB_SCRIPT_MEETEI_MAYEK
@HB_SCRIPT_OLD_SOUTH_ARABIAN
@HB_SCRIPT_OLD_TURKIC
@HB_SCRIPT_SAMARITAN
@HB_SCRIPT_TAI_THAM
@HB_SCRIPT_TAI_VIET
@HB_SCRIPT_BATAK
@HB_SCRIPT_BRAHMI
@HB_SCRIPT_MANDAIC
@HB_SCRIPT_CHAKMA
@HB_SCRIPT_MEROITIC_CURSIVE
@HB_SCRIPT_MEROITIC_HIEROGLYPHS
@HB_SCRIPT_MIAO
@HB_SCRIPT_SHARADA
@HB_SCRIPT_SORA_SOMPENG
@HB_SCRIPT_TAKRI
@HB_SCRIPT_BASSA_VAH
@HB_SCRIPT_CAUCASIAN_ALBANIAN
@HB_SCRIPT_DUPLOYAN
@HB_SCRIPT_ELBASAN
@HB_SCRIPT_GRANTHA
@HB_SCRIPT_KHOJKI
@HB_SCRIPT_KHUDAWADI
@HB_SCRIPT_LINEAR_A
@HB_SCRIPT_MAHAJANI
@HB_SCRIPT_MANICHAEAN
@HB_SCRIPT_MENDE_KIKAKUI
@HB_SCRIPT_MODI
@HB_SCRIPT_MRO
@HB_SCRIPT_NABATAEAN
@HB_SCRIPT_OLD_NORTH_ARABIAN
@HB_SCRIPT_OLD_PERMIC
@HB_SCRIPT_PAHAWH_HMONG
@HB_SCRIPT_PALMYRENE
@HB_SCRIPT_PAU_CIN_HAU
@HB_SCRIPT_PSALTER_PAHLAVI
@HB_SCRIPT_SIDDHAM
@HB_SCRIPT_TIRHUTA
@HB_SCRIPT_WARANG_CITI
@HB_SCRIPT_AHOM
@HB_SCRIPT_ANATOLIAN_HIEROGLYPHS
@HB_SCRIPT_HATRAN
@HB_SCRIPT_MULTANI
@HB_SCRIPT_OLD_HUNGARIAN
@HB_SCRIPT_SIGNWRITING
@HB_SCRIPT_ADLAM
@HB_SCRIPT_BHAIKSUKI
@HB_SCRIPT_MARCHEN
@HB_SCRIPT_OSAGE
@HB_SCRIPT_TANGUT
@HB_SCRIPT_NEWA
@HB_SCRIPT_MASARAM_GONDI
@HB_SCRIPT_NUSHU
@HB_SCRIPT_SOYOMBO
@HB_SCRIPT_ZANABAZAR_SQUARE
@HB_SCRIPT_DOGRA
@HB_SCRIPT_GUNJALA_GONDI
@HB_SCRIPT_HANIFI_ROHINGYA
@HB_SCRIPT_MAKASAR
@HB_SCRIPT_MEDEFAIDRIN
@HB_SCRIPT_OLD_SOGDIAN
@HB_SCRIPT_SOGDIAN
@HB_SCRIPT_ELYMAIC
@HB_SCRIPT_NANDINAGARI
@HB_SCRIPT_NYIAKENG_PUACHUE_HMONG
@HB_SCRIPT_WANCHO</doc>
      </member>
      <member name="arabic" value="1098015074" c:identifier="HB_SCRIPT_ARABIC" glib:nick="arabic" glib:name="HB_SCRIPT_ARABIC">
      </member>
      <member name="armenian" value="1098018158" c:identifier="HB_SCRIPT_ARMENIAN" glib:nick="armenian" glib:name="HB_SCRIPT_ARMENIAN">
      </member>
      <member name="bengali" value="1113943655" c:identifier="HB_SCRIPT_BENGALI" glib:nick="bengali" glib:name="HB_SCRIPT_BENGALI">
      </member>
      <member name="cyrillic" value="1132032620" c:identifier="HB_SCRIPT_CYRILLIC" glib:nick="cyrillic" glib:name="HB_SCRIPT_CYRILLIC">
      </member>
      <member name="devanagari" value="1147500129" c:identifier="HB_SCRIPT_DEVANAGARI" glib:nick="devanagari" glib:name="HB_SCRIPT_DEVANAGARI">
      </member>
      <member name="georgian" value="1197830002" c:identifier="HB_SCRIPT_GEORGIAN" glib:nick="georgian" glib:name="HB_SCRIPT_GEORGIAN">
      </member>
      <member name="greek" value="1198679403" c:identifier="HB_SCRIPT_GREEK" glib:nick="greek" glib:name="HB_SCRIPT_GREEK">
      </member>
      <member name="gujarati" value="1198877298" c:identifier="HB_SCRIPT_GUJARATI" glib:nick="gujarati" glib:name="HB_SCRIPT_GUJARATI">
      </member>
      <member name="gurmukhi" value="1198879349" c:identifier="HB_SCRIPT_GURMUKHI" glib:nick="gurmukhi" glib:name="HB_SCRIPT_GURMUKHI">
      </member>
      <member name="hangul" value="1214344807" c:identifier="HB_SCRIPT_HANGUL" glib:nick="hangul" glib:name="HB_SCRIPT_HANGUL">
      </member>
      <member name="han" value="1214344809" c:identifier="HB_SCRIPT_HAN" glib:nick="han" glib:name="HB_SCRIPT_HAN">
      </member>
      <member name="hebrew" value="1214603890" c:identifier="HB_SCRIPT_HEBREW" glib:nick="hebrew" glib:name="HB_SCRIPT_HEBREW">
      </member>
      <member name="hiragana" value="1214870113" c:identifier="HB_SCRIPT_HIRAGANA" glib:nick="hiragana" glib:name="HB_SCRIPT_HIRAGANA">
      </member>
      <member name="kannada" value="1265525857" c:identifier="HB_SCRIPT_KANNADA" glib:nick="kannada" glib:name="HB_SCRIPT_KANNADA">
      </member>
      <member name="katakana" value="1264676449" c:identifier="HB_SCRIPT_KATAKANA" glib:nick="katakana" glib:name="HB_SCRIPT_KATAKANA">
      </member>
      <member name="lao" value="1281453935" c:identifier="HB_SCRIPT_LAO" glib:nick="lao" glib:name="HB_SCRIPT_LAO">
      </member>
      <member name="latin" value="1281455214" c:identifier="HB_SCRIPT_LATIN" glib:nick="latin" glib:name="HB_SCRIPT_LATIN">
      </member>
      <member name="malayalam" value="1298954605" c:identifier="HB_SCRIPT_MALAYALAM" glib:nick="malayalam" glib:name="HB_SCRIPT_MALAYALAM">
      </member>
      <member name="oriya" value="1332902241" c:identifier="HB_SCRIPT_ORIYA" glib:nick="oriya" glib:name="HB_SCRIPT_ORIYA">
      </member>
      <member name="tamil" value="1415671148" c:identifier="HB_SCRIPT_TAMIL" glib:nick="tamil" glib:name="HB_SCRIPT_TAMIL">
      </member>
      <member name="telugu" value="1415933045" c:identifier="HB_SCRIPT_TELUGU" glib:nick="telugu" glib:name="HB_SCRIPT_TELUGU">
      </member>
      <member name="thai" value="1416126825" c:identifier="HB_SCRIPT_THAI" glib:nick="thai" glib:name="HB_SCRIPT_THAI">
      </member>
      <member name="tibetan" value="1416192628" c:identifier="HB_SCRIPT_TIBETAN" glib:nick="tibetan" glib:name="HB_SCRIPT_TIBETAN">
      </member>
      <member name="bopomofo" value="1114599535" c:identifier="HB_SCRIPT_BOPOMOFO" glib:nick="bopomofo" glib:name="HB_SCRIPT_BOPOMOFO">
      </member>
      <member name="braille" value="1114792297" c:identifier="HB_SCRIPT_BRAILLE" glib:nick="braille" glib:name="HB_SCRIPT_BRAILLE">
      </member>
      <member name="canadian_syllabics" value="1130458739" c:identifier="HB_SCRIPT_CANADIAN_SYLLABICS" glib:nick="canadian-syllabics" glib:name="HB_SCRIPT_CANADIAN_SYLLABICS">
      </member>
      <member name="cherokee" value="1130915186" c:identifier="HB_SCRIPT_CHEROKEE" glib:nick="cherokee" glib:name="HB_SCRIPT_CHEROKEE">
      </member>
      <member name="ethiopic" value="1165256809" c:identifier="HB_SCRIPT_ETHIOPIC" glib:nick="ethiopic" glib:name="HB_SCRIPT_ETHIOPIC">
      </member>
      <member name="khmer" value="1265134962" c:identifier="HB_SCRIPT_KHMER" glib:nick="khmer" glib:name="HB_SCRIPT_KHMER">
      </member>
      <member name="mongolian" value="1299148391" c:identifier="HB_SCRIPT_MONGOLIAN" glib:nick="mongolian" glib:name="HB_SCRIPT_MONGOLIAN">
      </member>
      <member name="myanmar" value="1299803506" c:identifier="HB_SCRIPT_MYANMAR" glib:nick="myanmar" glib:name="HB_SCRIPT_MYANMAR">
      </member>
      <member name="ogham" value="1332175213" c:identifier="HB_SCRIPT_OGHAM" glib:nick="ogham" glib:name="HB_SCRIPT_OGHAM">
      </member>
      <member name="runic" value="1383427698" c:identifier="HB_SCRIPT_RUNIC" glib:nick="runic" glib:name="HB_SCRIPT_RUNIC">
      </member>
      <member name="sinhala" value="1399418472" c:identifier="HB_SCRIPT_SINHALA" glib:nick="sinhala" glib:name="HB_SCRIPT_SINHALA">
      </member>
      <member name="syriac" value="1400468067" c:identifier="HB_SCRIPT_SYRIAC" glib:nick="syriac" glib:name="HB_SCRIPT_SYRIAC">
      </member>
      <member name="thaana" value="1416126817" c:identifier="HB_SCRIPT_THAANA" glib:nick="thaana" glib:name="HB_SCRIPT_THAANA">
      </member>
      <member name="yi" value="1500080489" c:identifier="HB_SCRIPT_YI" glib:nick="yi" glib:name="HB_SCRIPT_YI">
      </member>
      <member name="deseret" value="1148416628" c:identifier="HB_SCRIPT_DESERET" glib:nick="deseret" glib:name="HB_SCRIPT_DESERET">
      </member>
      <member name="gothic" value="1198486632" c:identifier="HB_SCRIPT_GOTHIC" glib:nick="gothic" glib:name="HB_SCRIPT_GOTHIC">
      </member>
      <member name="old_italic" value="1232363884" c:identifier="HB_SCRIPT_OLD_ITALIC" glib:nick="old-italic" glib:name="HB_SCRIPT_OLD_ITALIC">
      </member>
      <member name="buhid" value="1114990692" c:identifier="HB_SCRIPT_BUHID" glib:nick="buhid" glib:name="HB_SCRIPT_BUHID">
      </member>
      <member name="hanunoo" value="1214344815" c:identifier="HB_SCRIPT_HANUNOO" glib:nick="hanunoo" glib:name="HB_SCRIPT_HANUNOO">
      </member>
      <member name="tagalog" value="1416064103" c:identifier="HB_SCRIPT_TAGALOG" glib:nick="tagalog" glib:name="HB_SCRIPT_TAGALOG">
      </member>
      <member name="tagbanwa" value="1415669602" c:identifier="HB_SCRIPT_TAGBANWA" glib:nick="tagbanwa" glib:name="HB_SCRIPT_TAGBANWA">
      </member>
      <member name="cypriot" value="1131442804" c:identifier="HB_SCRIPT_CYPRIOT" glib:nick="cypriot" glib:name="HB_SCRIPT_CYPRIOT">
      </member>
      <member name="limbu" value="1281977698" c:identifier="HB_SCRIPT_LIMBU" glib:nick="limbu" glib:name="HB_SCRIPT_LIMBU">
      </member>
      <member name="linear_b" value="1281977954" c:identifier="HB_SCRIPT_LINEAR_B" glib:nick="linear-b" glib:name="HB_SCRIPT_LINEAR_B">
      </member>
      <member name="osmanya" value="1332964705" c:identifier="HB_SCRIPT_OSMANYA" glib:nick="osmanya" glib:name="HB_SCRIPT_OSMANYA">
      </member>
      <member name="shavian" value="1399349623" c:identifier="HB_SCRIPT_SHAVIAN" glib:nick="shavian" glib:name="HB_SCRIPT_SHAVIAN">
      </member>
      <member name="tai_le" value="1415670885" c:identifier="HB_SCRIPT_TAI_LE" glib:nick="tai-le" glib:name="HB_SCRIPT_TAI_LE">
      </member>
      <member name="ugaritic" value="1432838514" c:identifier="HB_SCRIPT_UGARITIC" glib:nick="ugaritic" glib:name="HB_SCRIPT_UGARITIC">
      </member>
      <member name="buginese" value="1114990441" c:identifier="HB_SCRIPT_BUGINESE" glib:nick="buginese" glib:name="HB_SCRIPT_BUGINESE">
      </member>
      <member name="coptic" value="1131376756" c:identifier="HB_SCRIPT_COPTIC" glib:nick="coptic" glib:name="HB_SCRIPT_COPTIC">
      </member>
      <member name="glagolitic" value="1198285159" c:identifier="HB_SCRIPT_GLAGOLITIC" glib:nick="glagolitic" glib:name="HB_SCRIPT_GLAGOLITIC">
      </member>
      <member name="kharoshthi" value="1265131890" c:identifier="HB_SCRIPT_KHAROSHTHI" glib:nick="kharoshthi" glib:name="HB_SCRIPT_KHAROSHTHI">
      </member>
      <member name="new_tai_lue" value="1415670901" c:identifier="HB_SCRIPT_NEW_TAI_LUE" glib:nick="new-tai-lue" glib:name="HB_SCRIPT_NEW_TAI_LUE">
      </member>
      <member name="old_persian" value="1483761007" c:identifier="HB_SCRIPT_OLD_PERSIAN" glib:nick="old-persian" glib:name="HB_SCRIPT_OLD_PERSIAN">
      </member>
      <member name="syloti_nagri" value="1400466543" c:identifier="HB_SCRIPT_SYLOTI_NAGRI" glib:nick="syloti-nagri" glib:name="HB_SCRIPT_SYLOTI_NAGRI">
      </member>
      <member name="tifinagh" value="1415999079" c:identifier="HB_SCRIPT_TIFINAGH" glib:nick="tifinagh" glib:name="HB_SCRIPT_TIFINAGH">
      </member>
      <member name="balinese" value="1113681001" c:identifier="HB_SCRIPT_BALINESE" glib:nick="balinese" glib:name="HB_SCRIPT_BALINESE">
      </member>
      <member name="cuneiform" value="1483961720" c:identifier="HB_SCRIPT_CUNEIFORM" glib:nick="cuneiform" glib:name="HB_SCRIPT_CUNEIFORM">
      </member>
      <member name="nko" value="1315663727" c:identifier="HB_SCRIPT_NKO" glib:nick="nko" glib:name="HB_SCRIPT_NKO">
      </member>
      <member name="phags_pa" value="1349017959" c:identifier="HB_SCRIPT_PHAGS_PA" glib:nick="phags-pa" glib:name="HB_SCRIPT_PHAGS_PA">
      </member>
      <member name="phoenician" value="1349021304" c:identifier="HB_SCRIPT_PHOENICIAN" glib:nick="phoenician" glib:name="HB_SCRIPT_PHOENICIAN">
      </member>
      <member name="carian" value="1130459753" c:identifier="HB_SCRIPT_CARIAN" glib:nick="carian" glib:name="HB_SCRIPT_CARIAN">
      </member>
      <member name="cham" value="1130914157" c:identifier="HB_SCRIPT_CHAM" glib:nick="cham" glib:name="HB_SCRIPT_CHAM">
      </member>
      <member name="kayah_li" value="1264675945" c:identifier="HB_SCRIPT_KAYAH_LI" glib:nick="kayah-li" glib:name="HB_SCRIPT_KAYAH_LI">
      </member>
      <member name="lepcha" value="1281716323" c:identifier="HB_SCRIPT_LEPCHA" glib:nick="lepcha" glib:name="HB_SCRIPT_LEPCHA">
      </member>
      <member name="lycian" value="1283023721" c:identifier="HB_SCRIPT_LYCIAN" glib:nick="lycian" glib:name="HB_SCRIPT_LYCIAN">
      </member>
      <member name="lydian" value="1283023977" c:identifier="HB_SCRIPT_LYDIAN" glib:nick="lydian" glib:name="HB_SCRIPT_LYDIAN">
      </member>
      <member name="ol_chiki" value="1332503403" c:identifier="HB_SCRIPT_OL_CHIKI" glib:nick="ol-chiki" glib:name="HB_SCRIPT_OL_CHIKI">
      </member>
      <member name="rejang" value="1382706791" c:identifier="HB_SCRIPT_REJANG" glib:nick="rejang" glib:name="HB_SCRIPT_REJANG">
      </member>
      <member name="saurashtra" value="1398895986" c:identifier="HB_SCRIPT_SAURASHTRA" glib:nick="saurashtra" glib:name="HB_SCRIPT_SAURASHTRA">
      </member>
      <member name="sundanese" value="1400204900" c:identifier="HB_SCRIPT_SUNDANESE" glib:nick="sundanese" glib:name="HB_SCRIPT_SUNDANESE">
      </member>
      <member name="vai" value="1449224553" c:identifier="HB_SCRIPT_VAI" glib:nick="vai" glib:name="HB_SCRIPT_VAI">
      </member>
      <member name="avestan" value="1098281844" c:identifier="HB_SCRIPT_AVESTAN" glib:nick="avestan" glib:name="HB_SCRIPT_AVESTAN">
      </member>
      <member name="bamum" value="1113681269" c:identifier="HB_SCRIPT_BAMUM" glib:nick="bamum" glib:name="HB_SCRIPT_BAMUM">
      </member>
      <member name="egyptian_hieroglyphs" value="1164409200" c:identifier="HB_SCRIPT_EGYPTIAN_HIEROGLYPHS" glib:nick="egyptian-hieroglyphs" glib:name="HB_SCRIPT_EGYPTIAN_HIEROGLYPHS">
      </member>
      <member name="imperial_aramaic" value="1098018153" c:identifier="HB_SCRIPT_IMPERIAL_ARAMAIC" glib:nick="imperial-aramaic" glib:name="HB_SCRIPT_IMPERIAL_ARAMAIC">
      </member>
      <member name="inscriptional_pahlavi" value="1349020777" c:identifier="HB_SCRIPT_INSCRIPTIONAL_PAHLAVI" glib:nick="inscriptional-pahlavi" glib:name="HB_SCRIPT_INSCRIPTIONAL_PAHLAVI">
      </member>
      <member name="inscriptional_parthian" value="1349678185" c:identifier="HB_SCRIPT_INSCRIPTIONAL_PARTHIAN" glib:nick="inscriptional-parthian" glib:name="HB_SCRIPT_INSCRIPTIONAL_PARTHIAN">
      </member>
      <member name="javanese" value="1247901281" c:identifier="HB_SCRIPT_JAVANESE" glib:nick="javanese" glib:name="HB_SCRIPT_JAVANESE">
      </member>
      <member name="kaithi" value="1265920105" c:identifier="HB_SCRIPT_KAITHI" glib:nick="kaithi" glib:name="HB_SCRIPT_KAITHI">
      </member>
      <member name="lisu" value="1281979253" c:identifier="HB_SCRIPT_LISU" glib:nick="lisu" glib:name="HB_SCRIPT_LISU">
      </member>
      <member name="meetei_mayek" value="1299473769" c:identifier="HB_SCRIPT_MEETEI_MAYEK" glib:nick="meetei-mayek" glib:name="HB_SCRIPT_MEETEI_MAYEK">
      </member>
      <member name="old_south_arabian" value="1398895202" c:identifier="HB_SCRIPT_OLD_SOUTH_ARABIAN" glib:nick="old-south-arabian" glib:name="HB_SCRIPT_OLD_SOUTH_ARABIAN">
      </member>
      <member name="old_turkic" value="1332898664" c:identifier="HB_SCRIPT_OLD_TURKIC" glib:nick="old-turkic" glib:name="HB_SCRIPT_OLD_TURKIC">
      </member>
      <member name="samaritan" value="1398893938" c:identifier="HB_SCRIPT_SAMARITAN" glib:nick="samaritan" glib:name="HB_SCRIPT_SAMARITAN">
      </member>
      <member name="tai_tham" value="1281453665" c:identifier="HB_SCRIPT_TAI_THAM" glib:nick="tai-tham" glib:name="HB_SCRIPT_TAI_THAM">
      </member>
      <member name="tai_viet" value="1415673460" c:identifier="HB_SCRIPT_TAI_VIET" glib:nick="tai-viet" glib:name="HB_SCRIPT_TAI_VIET">
      </member>
      <member name="batak" value="1113683051" c:identifier="HB_SCRIPT_BATAK" glib:nick="batak" glib:name="HB_SCRIPT_BATAK">
      </member>
      <member name="brahmi" value="1114792296" c:identifier="HB_SCRIPT_BRAHMI" glib:nick="brahmi" glib:name="HB_SCRIPT_BRAHMI">
      </member>
      <member name="mandaic" value="1298230884" c:identifier="HB_SCRIPT_MANDAIC" glib:nick="mandaic" glib:name="HB_SCRIPT_MANDAIC">
      </member>
      <member name="chakma" value="1130457965" c:identifier="HB_SCRIPT_CHAKMA" glib:nick="chakma" glib:name="HB_SCRIPT_CHAKMA">
      </member>
      <member name="meroitic_cursive" value="1298494051" c:identifier="HB_SCRIPT_MEROITIC_CURSIVE" glib:nick="meroitic-cursive" glib:name="HB_SCRIPT_MEROITIC_CURSIVE">
      </member>
      <member name="meroitic_hieroglyphs" value="1298494063" c:identifier="HB_SCRIPT_MEROITIC_HIEROGLYPHS" glib:nick="meroitic-hieroglyphs" glib:name="HB_SCRIPT_MEROITIC_HIEROGLYPHS">
      </member>
      <member name="miao" value="1349284452" c:identifier="HB_SCRIPT_MIAO" glib:nick="miao" glib:name="HB_SCRIPT_MIAO">
      </member>
      <member name="sharada" value="1399353956" c:identifier="HB_SCRIPT_SHARADA" glib:nick="sharada" glib:name="HB_SCRIPT_SHARADA">
      </member>
      <member name="sora_sompeng" value="1399812705" c:identifier="HB_SCRIPT_SORA_SOMPENG" glib:nick="sora-sompeng" glib:name="HB_SCRIPT_SORA_SOMPENG">
      </member>
      <member name="takri" value="1415670642" c:identifier="HB_SCRIPT_TAKRI" glib:nick="takri" glib:name="HB_SCRIPT_TAKRI">
      </member>
      <member name="bassa_vah" value="1113682803" c:identifier="HB_SCRIPT_BASSA_VAH" glib:nick="bassa-vah" glib:name="HB_SCRIPT_BASSA_VAH">
      </member>
      <member name="caucasian_albanian" value="1097295970" c:identifier="HB_SCRIPT_CAUCASIAN_ALBANIAN" glib:nick="caucasian-albanian" glib:name="HB_SCRIPT_CAUCASIAN_ALBANIAN">
      </member>
      <member name="duployan" value="1148547180" c:identifier="HB_SCRIPT_DUPLOYAN" glib:nick="duployan" glib:name="HB_SCRIPT_DUPLOYAN">
      </member>
      <member name="elbasan" value="1164730977" c:identifier="HB_SCRIPT_ELBASAN" glib:nick="elbasan" glib:name="HB_SCRIPT_ELBASAN">
      </member>
      <member name="grantha" value="1198678382" c:identifier="HB_SCRIPT_GRANTHA" glib:nick="grantha" glib:name="HB_SCRIPT_GRANTHA">
      </member>
      <member name="khojki" value="1265135466" c:identifier="HB_SCRIPT_KHOJKI" glib:nick="khojki" glib:name="HB_SCRIPT_KHOJKI">
      </member>
      <member name="khudawadi" value="1399418468" c:identifier="HB_SCRIPT_KHUDAWADI" glib:nick="khudawadi" glib:name="HB_SCRIPT_KHUDAWADI">
      </member>
      <member name="linear_a" value="1281977953" c:identifier="HB_SCRIPT_LINEAR_A" glib:nick="linear-a" glib:name="HB_SCRIPT_LINEAR_A">
      </member>
      <member name="mahajani" value="1298229354" c:identifier="HB_SCRIPT_MAHAJANI" glib:nick="mahajani" glib:name="HB_SCRIPT_MAHAJANI">
      </member>
      <member name="manichaean" value="1298230889" c:identifier="HB_SCRIPT_MANICHAEAN" glib:nick="manichaean" glib:name="HB_SCRIPT_MANICHAEAN">
      </member>
      <member name="mende_kikakui" value="1298493028" c:identifier="HB_SCRIPT_MENDE_KIKAKUI" glib:nick="mende-kikakui" glib:name="HB_SCRIPT_MENDE_KIKAKUI">
      </member>
      <member name="modi" value="1299145833" c:identifier="HB_SCRIPT_MODI" glib:nick="modi" glib:name="HB_SCRIPT_MODI">
      </member>
      <member name="mro" value="1299345263" c:identifier="HB_SCRIPT_MRO" glib:nick="mro" glib:name="HB_SCRIPT_MRO">
      </member>
      <member name="nabataean" value="1315070324" c:identifier="HB_SCRIPT_NABATAEAN" glib:nick="nabataean" glib:name="HB_SCRIPT_NABATAEAN">
      </member>
      <member name="old_north_arabian" value="1315009122" c:identifier="HB_SCRIPT_OLD_NORTH_ARABIAN" glib:nick="old-north-arabian" glib:name="HB_SCRIPT_OLD_NORTH_ARABIAN">
      </member>
      <member name="old_permic" value="1348825709" c:identifier="HB_SCRIPT_OLD_PERMIC" glib:nick="old-permic" glib:name="HB_SCRIPT_OLD_PERMIC">
      </member>
      <member name="pahawh_hmong" value="1215131239" c:identifier="HB_SCRIPT_PAHAWH_HMONG" glib:nick="pahawh-hmong" glib:name="HB_SCRIPT_PAHAWH_HMONG">
      </member>
      <member name="palmyrene" value="1348562029" c:identifier="HB_SCRIPT_PALMYRENE" glib:nick="palmyrene" glib:name="HB_SCRIPT_PALMYRENE">
      </member>
      <member name="pau_cin_hau" value="1348564323" c:identifier="HB_SCRIPT_PAU_CIN_HAU" glib:nick="pau-cin-hau" glib:name="HB_SCRIPT_PAU_CIN_HAU">
      </member>
      <member name="psalter_pahlavi" value="1349020784" c:identifier="HB_SCRIPT_PSALTER_PAHLAVI" glib:nick="psalter-pahlavi" glib:name="HB_SCRIPT_PSALTER_PAHLAVI">
      </member>
      <member name="siddham" value="1399415908" c:identifier="HB_SCRIPT_SIDDHAM" glib:nick="siddham" glib:name="HB_SCRIPT_SIDDHAM">
      </member>
      <member name="tirhuta" value="1416196712" c:identifier="HB_SCRIPT_TIRHUTA" glib:nick="tirhuta" glib:name="HB_SCRIPT_TIRHUTA">
      </member>
      <member name="warang_citi" value="1466004065" c:identifier="HB_SCRIPT_WARANG_CITI" glib:nick="warang-citi" glib:name="HB_SCRIPT_WARANG_CITI">
      </member>
      <member name="ahom" value="1097363309" c:identifier="HB_SCRIPT_AHOM" glib:nick="ahom" glib:name="HB_SCRIPT_AHOM">
      </member>
      <member name="anatolian_hieroglyphs" value="1215067511" c:identifier="HB_SCRIPT_ANATOLIAN_HIEROGLYPHS" glib:nick="anatolian-hieroglyphs" glib:name="HB_SCRIPT_ANATOLIAN_HIEROGLYPHS">
      </member>
      <member name="hatran" value="1214346354" c:identifier="HB_SCRIPT_HATRAN" glib:nick="hatran" glib:name="HB_SCRIPT_HATRAN">
      </member>
      <member name="multani" value="1299541108" c:identifier="HB_SCRIPT_MULTANI" glib:nick="multani" glib:name="HB_SCRIPT_MULTANI">
      </member>
      <member name="old_hungarian" value="1215655527" c:identifier="HB_SCRIPT_OLD_HUNGARIAN" glib:nick="old-hungarian" glib:name="HB_SCRIPT_OLD_HUNGARIAN">
      </member>
      <member name="signwriting" value="1399287415" c:identifier="HB_SCRIPT_SIGNWRITING" glib:nick="signwriting" glib:name="HB_SCRIPT_SIGNWRITING">
      </member>
      <member name="adlam" value="1097100397" c:identifier="HB_SCRIPT_ADLAM" glib:nick="adlam" glib:name="HB_SCRIPT_ADLAM">
      </member>
      <member name="bhaiksuki" value="1114139507" c:identifier="HB_SCRIPT_BHAIKSUKI" glib:nick="bhaiksuki" glib:name="HB_SCRIPT_BHAIKSUKI">
      </member>
      <member name="marchen" value="1298231907" c:identifier="HB_SCRIPT_MARCHEN" glib:nick="marchen" glib:name="HB_SCRIPT_MARCHEN">
      </member>
      <member name="osage" value="1332963173" c:identifier="HB_SCRIPT_OSAGE" glib:nick="osage" glib:name="HB_SCRIPT_OSAGE">
      </member>
      <member name="tangut" value="1415671399" c:identifier="HB_SCRIPT_TANGUT" glib:nick="tangut" glib:name="HB_SCRIPT_TANGUT">
      </member>
      <member name="newa" value="1315272545" c:identifier="HB_SCRIPT_NEWA" glib:nick="newa" glib:name="HB_SCRIPT_NEWA">
      </member>
      <member name="masaram_gondi" value="1198485101" c:identifier="HB_SCRIPT_MASARAM_GONDI" glib:nick="masaram-gondi" glib:name="HB_SCRIPT_MASARAM_GONDI">
      </member>
      <member name="nushu" value="1316186229" c:identifier="HB_SCRIPT_NUSHU" glib:nick="nushu" glib:name="HB_SCRIPT_NUSHU">
      </member>
      <member name="soyombo" value="1399814511" c:identifier="HB_SCRIPT_SOYOMBO" glib:nick="soyombo" glib:name="HB_SCRIPT_SOYOMBO">
      </member>
      <member name="zanabazar_square" value="1516334690" c:identifier="HB_SCRIPT_ZANABAZAR_SQUARE" glib:nick="zanabazar-square" glib:name="HB_SCRIPT_ZANABAZAR_SQUARE">
      </member>
      <member name="dogra" value="1148151666" c:identifier="HB_SCRIPT_DOGRA" glib:nick="dogra" glib:name="HB_SCRIPT_DOGRA">
      </member>
      <member name="gunjala_gondi" value="1198485095" c:identifier="HB_SCRIPT_GUNJALA_GONDI" glib:nick="gunjala-gondi" glib:name="HB_SCRIPT_GUNJALA_GONDI">
      </member>
      <member name="hanifi_rohingya" value="1383032935" c:identifier="HB_SCRIPT_HANIFI_ROHINGYA" glib:nick="hanifi-rohingya" glib:name="HB_SCRIPT_HANIFI_ROHINGYA">
      </member>
      <member name="makasar" value="1298230113" c:identifier="HB_SCRIPT_MAKASAR" glib:nick="makasar" glib:name="HB_SCRIPT_MAKASAR">
      </member>
      <member name="medefaidrin" value="1298490470" c:identifier="HB_SCRIPT_MEDEFAIDRIN" glib:nick="medefaidrin" glib:name="HB_SCRIPT_MEDEFAIDRIN">
      </member>
      <member name="old_sogdian" value="1399809903" c:identifier="HB_SCRIPT_OLD_SOGDIAN" glib:nick="old-sogdian" glib:name="HB_SCRIPT_OLD_SOGDIAN">
      </member>
      <member name="sogdian" value="1399809892" c:identifier="HB_SCRIPT_SOGDIAN" glib:nick="sogdian" glib:name="HB_SCRIPT_SOGDIAN">
      </member>
      <member name="elymaic" value="1164736877" c:identifier="HB_SCRIPT_ELYMAIC" glib:nick="elymaic" glib:name="HB_SCRIPT_ELYMAIC">
      </member>
      <member name="nandinagari" value="1315008100" c:identifier="HB_SCRIPT_NANDINAGARI" glib:nick="nandinagari" glib:name="HB_SCRIPT_NANDINAGARI">
      </member>
      <member name="nyiakeng_puachue_hmong" value="1215131248" c:identifier="HB_SCRIPT_NYIAKENG_PUACHUE_HMONG" glib:nick="nyiakeng-puachue-hmong" glib:name="HB_SCRIPT_NYIAKENG_PUACHUE_HMONG">
      </member>
      <member name="wancho" value="1466132591" c:identifier="HB_SCRIPT_WANCHO" glib:nick="wancho" glib:name="HB_SCRIPT_WANCHO">
      </member>
      <member name="chorasmian" value="1130918515" c:identifier="HB_SCRIPT_CHORASMIAN" glib:nick="chorasmian" glib:name="HB_SCRIPT_CHORASMIAN">
      </member>
      <member name="dives_akuru" value="1147756907" c:identifier="HB_SCRIPT_DIVES_AKURU" glib:nick="dives-akuru" glib:name="HB_SCRIPT_DIVES_AKURU">
      </member>
      <member name="khitan_small_script" value="1265202291" c:identifier="HB_SCRIPT_KHITAN_SMALL_SCRIPT" glib:nick="khitan-small-script" glib:name="HB_SCRIPT_KHITAN_SMALL_SCRIPT">
      </member>
      <member name="yezidi" value="1499822697" c:identifier="HB_SCRIPT_YEZIDI" glib:nick="yezidi" glib:name="HB_SCRIPT_YEZIDI">
      </member>
      <member name="invalid" value="0" c:identifier="HB_SCRIPT_INVALID" glib:nick="invalid" glib:name="HB_SCRIPT_INVALID">
        <doc xml:space="preserve">#HB_TAG_NONE</doc>
      </member>
    </enumeration>
    <function name="script_to_iso15924_tag" c:identifier="hb_script_to_iso15924_tag" version="0.9.2">
      <doc xml:space="preserve">Converts an #hb_script_t to a corresponding ISO&#xA0;15924 script tag.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">An #hb_tag_t representing an ISO 15924 script tag.</doc>
        <type name="tag_t" c:type="hb_tag_t"/>
      </return-value>
      <parameters>
        <parameter name="script" transfer-ownership="none">
          <doc xml:space="preserve">an #hb_script_t to convert.</doc>
          <type name="script_t" c:type="hb_script_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="segment_properties_equal" c:identifier="hb_segment_properties_equal" version="0.9.7">
      <doc xml:space="preserve">Checks the equality of two #hb_segment_properties_t's.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%true if all properties of @a equal those of @b, %false otherwise.</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="a" transfer-ownership="none">
          <doc xml:space="preserve">first #hb_segment_properties_t to compare.</doc>
          <type name="segment_properties_t" c:type="const hb_segment_properties_t*"/>
        </parameter>
        <parameter name="b" transfer-ownership="none">
          <doc xml:space="preserve">second #hb_segment_properties_t to compare.</doc>
          <type name="segment_properties_t" c:type="const hb_segment_properties_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="segment_properties_hash" c:identifier="hb_segment_properties_hash" version="0.9.7">
      <doc xml:space="preserve">Creates a hash representing @p.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">A hash of @p.</doc>
        <type name="guint" c:type="unsigned int"/>
      </return-value>
      <parameters>
        <parameter name="p" transfer-ownership="none">
          <doc xml:space="preserve">#hb_segment_properties_t to hash.</doc>
          <type name="segment_properties_t" c:type="const hb_segment_properties_t*"/>
        </parameter>
      </parameters>
    </function>
    <record name="segment_properties_t" c:type="hb_segment_properties_t" glib:type-name="hb_segment_properties_t" glib:get-type="hb_gobject_segment_properties_get_type" c:symbol-prefix="gobject_segment_properties">
      <doc xml:space="preserve">The structure that holds various text properties of an #hb_buffer_t. Can be
set and retrieved using hb_buffer_set_segment_properties() and
hb_buffer_get_segment_properties(), respectively.</doc>
      <field name="direction" writable="1">
        <doc xml:space="preserve">the #hb_direction_t of the buffer, see hb_buffer_set_direction().</doc>
        <type name="direction_t" c:type="hb_direction_t"/>
      </field>
      <field name="script" writable="1">
        <doc xml:space="preserve">the #hb_script_t of the buffer, see hb_buffer_set_script().</doc>
        <type name="script_t" c:type="hb_script_t"/>
      </field>
      <field name="language" writable="1">
        <doc xml:space="preserve">the #hb_language_t of the buffer, see hb_buffer_set_language().</doc>
        <type name="language_t" c:type="hb_language_t"/>
      </field>
      <field name="reserved1" readable="0" private="1">
        <type name="gpointer" c:type="void*"/>
      </field>
      <field name="reserved2" readable="0" private="1">
        <type name="gpointer" c:type="void*"/>
      </field>
    </record>
    <function name="set_add" c:identifier="hb_set_add" version="0.9.2">
      <doc xml:space="preserve">Adds @codepoint to @set.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="set" transfer-ownership="none">
          <doc xml:space="preserve">A set</doc>
          <type name="set_t" c:type="hb_set_t*"/>
        </parameter>
        <parameter name="codepoint" transfer-ownership="none">
          <doc xml:space="preserve">The element to add to @set</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="set_add_range" c:identifier="hb_set_add_range" version="0.9.7">
      <doc xml:space="preserve">Adds all of the elements from @first to @last
(inclusive) to @set.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="set" transfer-ownership="none">
          <doc xml:space="preserve">A set</doc>
          <type name="set_t" c:type="hb_set_t*"/>
        </parameter>
        <parameter name="first" transfer-ownership="none">
          <doc xml:space="preserve">The first element to add to @set</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="last" transfer-ownership="none">
          <doc xml:space="preserve">The final element to add to @set</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="set_allocation_successful" c:identifier="hb_set_allocation_successful" version="0.9.2">
      <doc xml:space="preserve">Tests whether memory allocation for a set was successful.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%true if allocation succeeded, false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="set" transfer-ownership="none">
          <doc xml:space="preserve">A set</doc>
          <type name="set_t" c:type="const hb_set_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="set_clear" c:identifier="hb_set_clear" version="0.9.2">
      <doc xml:space="preserve">Clears out the contents of a set.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="set" transfer-ownership="none">
          <doc xml:space="preserve">A set</doc>
          <type name="set_t" c:type="hb_set_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="set_create" c:identifier="hb_set_create" version="0.9.2">
      <doc xml:space="preserve">Creates a new, initially empty set.</doc>
      <return-value transfer-ownership="full">
        <doc xml:space="preserve">The new #hb_set_t</doc>
        <type name="set_t" c:type="hb_set_t*"/>
      </return-value>
    </function>
    <function name="set_del" c:identifier="hb_set_del" version="0.9.2">
      <doc xml:space="preserve">Removes @codepoint from @set.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="set" transfer-ownership="none">
          <doc xml:space="preserve">A set</doc>
          <type name="set_t" c:type="hb_set_t*"/>
        </parameter>
        <parameter name="codepoint" transfer-ownership="none">
          <doc xml:space="preserve">Removes @codepoint from @set</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="set_del_range" c:identifier="hb_set_del_range" version="0.9.7">
      <doc xml:space="preserve">Removes all of the elements from @first to @last
(inclusive) from @set.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="set" transfer-ownership="none">
          <doc xml:space="preserve">A set</doc>
          <type name="set_t" c:type="hb_set_t*"/>
        </parameter>
        <parameter name="first" transfer-ownership="none">
          <doc xml:space="preserve">The first element to remove from @set</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="last" transfer-ownership="none">
          <doc xml:space="preserve">The final element to remove from @set</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="set_destroy" c:identifier="hb_set_destroy" version="0.9.2" introspectable="0">
      <doc xml:space="preserve">Decreases the reference count on a set. When
the reference count reaches zero, the set is
destroyed, freeing all memory.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="set" transfer-ownership="none">
          <doc xml:space="preserve">A set</doc>
          <type name="set_t" c:type="hb_set_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="set_get_empty" c:identifier="hb_set_get_empty" version="0.9.2">
      <doc xml:space="preserve">Fetches the singleton empty #hb_set_t.</doc>
      <return-value transfer-ownership="full">
        <doc xml:space="preserve">The empty #hb_set_t</doc>
        <type name="set_t" c:type="hb_set_t*"/>
      </return-value>
    </function>
    <function name="set_get_max" c:identifier="hb_set_get_max" version="0.9.7">
      <doc xml:space="preserve">Finds the largest element in the set.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">maximum of @set, or %HB_SET_VALUE_INVALID if @set is empty.</doc>
        <type name="codepoint_t" c:type="hb_codepoint_t"/>
      </return-value>
      <parameters>
        <parameter name="set" transfer-ownership="none">
          <doc xml:space="preserve">A set</doc>
          <type name="set_t" c:type="const hb_set_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="set_get_min" c:identifier="hb_set_get_min" version="0.9.7">
      <doc xml:space="preserve">Finds the smallest element in the set.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">minimum of @set, or %HB_SET_VALUE_INVALID if @set is empty.</doc>
        <type name="codepoint_t" c:type="hb_codepoint_t"/>
      </return-value>
      <parameters>
        <parameter name="set" transfer-ownership="none">
          <doc xml:space="preserve">A set</doc>
          <type name="set_t" c:type="const hb_set_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="set_get_population" c:identifier="hb_set_get_population" version="0.9.7">
      <doc xml:space="preserve">Returns the number of elements in the set.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">The population of @set</doc>
        <type name="guint" c:type="unsigned int"/>
      </return-value>
      <parameters>
        <parameter name="set" transfer-ownership="none">
          <doc xml:space="preserve">A set</doc>
          <type name="set_t" c:type="const hb_set_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="set_get_user_data" c:identifier="hb_set_get_user_data" version="0.9.2" introspectable="0">
      <doc xml:space="preserve">Fetches the user data associated with the specified key,
attached to the specified set.</doc>
      <return-value transfer-ownership="none" nullable="1">
        <doc xml:space="preserve">A pointer to the user data</doc>
        <type name="gpointer" c:type="void*"/>
      </return-value>
      <parameters>
        <parameter name="set" transfer-ownership="none">
          <doc xml:space="preserve">A set</doc>
          <type name="set_t" c:type="hb_set_t*"/>
        </parameter>
        <parameter name="key" transfer-ownership="none">
          <doc xml:space="preserve">The user-data key to query</doc>
          <type name="user_data_key_t" c:type="hb_user_data_key_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="set_has" c:identifier="hb_set_has" version="0.9.2">
      <doc xml:space="preserve">Tests whether @codepoint belongs to @set.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%true if @codepoint is in @set, false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="set" transfer-ownership="none">
          <doc xml:space="preserve">A set</doc>
          <type name="set_t" c:type="const hb_set_t*"/>
        </parameter>
        <parameter name="codepoint" transfer-ownership="none">
          <doc xml:space="preserve">The element to query</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="set_intersect" c:identifier="hb_set_intersect" version="0.9.2">
      <doc xml:space="preserve">Makes @set the intersection of @set and @other.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="set" transfer-ownership="none">
          <doc xml:space="preserve">A set</doc>
          <type name="set_t" c:type="hb_set_t*"/>
        </parameter>
        <parameter name="other" transfer-ownership="none">
          <doc xml:space="preserve">Another set</doc>
          <type name="set_t" c:type="const hb_set_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="set_invert" c:identifier="hb_set_invert" version="0.9.10" deprecated="1" deprecated-version="1.6.1">
      <doc xml:space="preserve">Inverts the contents of @set.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="set" transfer-ownership="none">
          <doc xml:space="preserve">A set</doc>
          <type name="set_t" c:type="hb_set_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="set_is_empty" c:identifier="hb_set_is_empty" version="0.9.7">
      <doc xml:space="preserve">Tests whether a set is empty (contains no elements).</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%true if @set is empty</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="set" transfer-ownership="none">
          <doc xml:space="preserve">a set.</doc>
          <type name="set_t" c:type="const hb_set_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="set_is_equal" c:identifier="hb_set_is_equal" version="0.9.7">
      <doc xml:space="preserve">Tests whether @set and @other are equal (contain the same
elements).</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%TRUE if the two sets are equal, %FALSE otherwise.</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="set" transfer-ownership="none">
          <doc xml:space="preserve">A set</doc>
          <type name="set_t" c:type="const hb_set_t*"/>
        </parameter>
        <parameter name="other" transfer-ownership="none">
          <doc xml:space="preserve">Another set</doc>
          <type name="set_t" c:type="const hb_set_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="set_is_subset" c:identifier="hb_set_is_subset" version="1.8.1">
      <doc xml:space="preserve">Tests whether @set is a subset of @larger_set.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%TRUE if the @set is a subset of (or equal to) @larger_set, %FALSE otherwise.</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="set" transfer-ownership="none">
          <doc xml:space="preserve">A set</doc>
          <type name="set_t" c:type="const hb_set_t*"/>
        </parameter>
        <parameter name="larger_set" transfer-ownership="none">
          <doc xml:space="preserve">Another set</doc>
          <type name="set_t" c:type="const hb_set_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="set_next" c:identifier="hb_set_next" version="0.9.2">
      <doc xml:space="preserve">Fetches the next element in @set that is greater than current value of @codepoint.

Set @codepoint to %HB_SET_VALUE_INVALID to get started.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%true if there was a next value, false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="set" transfer-ownership="none">
          <doc xml:space="preserve">A set</doc>
          <type name="set_t" c:type="const hb_set_t*"/>
        </parameter>
        <parameter name="codepoint" direction="inout" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">Input = Code point to query
            Output = Code point retrieved</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="set_next_range" c:identifier="hb_set_next_range" version="0.9.7">
      <doc xml:space="preserve">Fetches the next consecutive range of elements in @set that
are greater than current value of @last.

Set @last to %HB_SET_VALUE_INVALID to get started.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%true if there was a next range, false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="set" transfer-ownership="none">
          <doc xml:space="preserve">A set</doc>
          <type name="set_t" c:type="const hb_set_t*"/>
        </parameter>
        <parameter name="first" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The first code point in the range</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t*"/>
        </parameter>
        <parameter name="last" direction="inout" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">Input = The current last code point in the range
        Output = The last code point in the range</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="set_previous" c:identifier="hb_set_previous" version="1.8.0">
      <doc xml:space="preserve">Fetches the previous element in @set that is lower than current value of @codepoint.

Set @codepoint to %HB_SET_VALUE_INVALID to get started.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%true if there was a previous value, false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="set" transfer-ownership="none">
          <doc xml:space="preserve">A set</doc>
          <type name="set_t" c:type="const hb_set_t*"/>
        </parameter>
        <parameter name="codepoint" direction="inout" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">Input = Code point to query
            Output = Code point retrieved</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="set_previous_range" c:identifier="hb_set_previous_range" version="1.8.0">
      <doc xml:space="preserve">Fetches the previous consecutive range of elements in @set that
are greater than current value of @last.

Set @first to %HB_SET_VALUE_INVALID to get started.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%true if there was a previous range, false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="set" transfer-ownership="none">
          <doc xml:space="preserve">A set</doc>
          <type name="set_t" c:type="const hb_set_t*"/>
        </parameter>
        <parameter name="first" direction="inout" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">Input = The current first code point in the range
        Output = The first code point in the range</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t*"/>
        </parameter>
        <parameter name="last" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The last code point in the range</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="set_reference" c:identifier="hb_set_reference" version="0.9.2" introspectable="0">
      <doc xml:space="preserve">Increases the reference count on a set.</doc>
      <return-value transfer-ownership="full">
        <doc xml:space="preserve">The set</doc>
        <type name="set_t" c:type="hb_set_t*"/>
      </return-value>
      <parameters>
        <parameter name="set" transfer-ownership="none">
          <doc xml:space="preserve">A set</doc>
          <type name="set_t" c:type="hb_set_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="set_set" c:identifier="hb_set_set" version="0.9.2">
      <doc xml:space="preserve">Makes the contents of @set equal to the contents of @other.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="set" transfer-ownership="none">
          <doc xml:space="preserve">A set</doc>
          <type name="set_t" c:type="hb_set_t*"/>
        </parameter>
        <parameter name="other" transfer-ownership="none">
          <doc xml:space="preserve">Another set</doc>
          <type name="set_t" c:type="const hb_set_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="set_set_user_data" c:identifier="hb_set_set_user_data" version="0.9.2" introspectable="0">
      <doc xml:space="preserve">Attaches a user-data key/data pair to the specified set.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%true if success, %false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="set" transfer-ownership="none">
          <doc xml:space="preserve">A set</doc>
          <type name="set_t" c:type="hb_set_t*"/>
        </parameter>
        <parameter name="key" transfer-ownership="none">
          <doc xml:space="preserve">The user-data key to set</doc>
          <type name="user_data_key_t" c:type="hb_user_data_key_t*"/>
        </parameter>
        <parameter name="data" transfer-ownership="none" nullable="1" allow-none="1">
          <doc xml:space="preserve">A pointer to the user data to set</doc>
          <type name="gpointer" c:type="void*"/>
        </parameter>
        <parameter name="destroy" transfer-ownership="none">
          <doc xml:space="preserve">A callback to call when @data is not needed anymore</doc>
          <type name="destroy_func_t" c:type="hb_destroy_func_t"/>
        </parameter>
        <parameter name="replace" transfer-ownership="none">
          <doc xml:space="preserve">Whether to replace an existing data with the same key</doc>
          <type name="bool_t" c:type="hb_bool_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="set_subtract" c:identifier="hb_set_subtract" version="0.9.2">
      <doc xml:space="preserve">Subtracts the contents of @other from @set.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="set" transfer-ownership="none">
          <doc xml:space="preserve">A set</doc>
          <type name="set_t" c:type="hb_set_t*"/>
        </parameter>
        <parameter name="other" transfer-ownership="none">
          <doc xml:space="preserve">Another set</doc>
          <type name="set_t" c:type="const hb_set_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="set_symmetric_difference" c:identifier="hb_set_symmetric_difference" version="0.9.2">
      <doc xml:space="preserve">Makes @set the symmetric difference of @set
and @other.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="set" transfer-ownership="none">
          <doc xml:space="preserve">A set</doc>
          <type name="set_t" c:type="hb_set_t*"/>
        </parameter>
        <parameter name="other" transfer-ownership="none">
          <doc xml:space="preserve">Another set</doc>
          <type name="set_t" c:type="const hb_set_t*"/>
        </parameter>
      </parameters>
    </function>
    <record name="set_t" c:type="hb_set_t" glib:type-name="hb_set_t" glib:get-type="hb_gobject_set_get_type" c:symbol-prefix="gobject_set">
      <doc xml:space="preserve">Data type for holding a set of integers. #hb_set_t's are
used to gather and contain glyph IDs, Unicode code
points, and various other collections of discrete
values.</doc>
    </record>
    <function name="set_union" c:identifier="hb_set_union" version="0.9.2">
      <doc xml:space="preserve">Makes @set the union of @set and @other.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="set" transfer-ownership="none">
          <doc xml:space="preserve">A set</doc>
          <type name="set_t" c:type="hb_set_t*"/>
        </parameter>
        <parameter name="other" transfer-ownership="none">
          <doc xml:space="preserve">Another set</doc>
          <type name="set_t" c:type="const hb_set_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="shape" c:identifier="hb_shape" version="0.9.2">
      <doc xml:space="preserve">Shapes @buffer using @font turning its Unicode characters content to
positioned glyphs. If @features is not %NULL, it will be used to control the
features applied during shaping. If two @features have the same tag but
overlapping ranges the value of the feature with the higher index takes
precedence.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">an #hb_font_t to use for shaping</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">an #hb_buffer_t to shape</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
        <parameter name="features" transfer-ownership="none" nullable="1" allow-none="1">
          <doc xml:space="preserve">an array of user
   specified #hb_feature_t or %NULL</doc>
          <array length="3" zero-terminated="0" c:type="const hb_feature_t*">
            <type name="feature_t" c:type="hb_feature_t"/>
          </array>
        </parameter>
        <parameter name="num_features" transfer-ownership="none">
          <doc xml:space="preserve">the length of @features array</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
      </parameters>
    </function>
    <function name="shape_full" c:identifier="hb_shape_full" version="0.9.2">
      <doc xml:space="preserve">See hb_shape() for details. If @shaper_list is not %NULL, the specified
shapers will be used in the given order, otherwise the default shapers list
will be used.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">false if all shapers failed, true otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">an #hb_font_t to use for shaping</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">an #hb_buffer_t to shape</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
        <parameter name="features" transfer-ownership="none" nullable="1" allow-none="1">
          <doc xml:space="preserve">an array of user
   specified #hb_feature_t or %NULL</doc>
          <array length="3" zero-terminated="0" c:type="const hb_feature_t*">
            <type name="feature_t" c:type="hb_feature_t"/>
          </array>
        </parameter>
        <parameter name="num_features" transfer-ownership="none">
          <doc xml:space="preserve">the length of @features array</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="shaper_list" transfer-ownership="none" nullable="1" allow-none="1">
          <doc xml:space="preserve">a %NULL-terminated
   array of shapers to use or %NULL</doc>
          <array c:type="const char* const*">
            <type name="utf8" c:type="char*"/>
          </array>
        </parameter>
      </parameters>
    </function>
    <function name="shape_list_shapers" c:identifier="hb_shape_list_shapers" version="0.9.2">
      <doc xml:space="preserve">Retrieves the list of shapers supported by HarfBuzz.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">an array of
   constant strings</doc>
        <array c:type="const char**">
          <type name="utf8"/>
        </array>
      </return-value>
    </function>
    <function name="shape_plan_create" c:identifier="hb_shape_plan_create" version="0.9.7">
      <doc xml:space="preserve">Constructs a shaping plan for a combination of @face, @user_features, @props,
and @shaper_list.</doc>
      <return-value transfer-ownership="full">
        <doc xml:space="preserve">The shaping plan</doc>
        <type name="shape_plan_t" c:type="hb_shape_plan_t*"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">#hb_face_t to use</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="props" transfer-ownership="none">
          <doc xml:space="preserve">The #hb_segment_properties_t of the segment</doc>
          <type name="segment_properties_t" c:type="const hb_segment_properties_t*"/>
        </parameter>
        <parameter name="user_features" transfer-ownership="none">
          <doc xml:space="preserve">The list of user-selected features</doc>
          <array length="3" zero-terminated="0" c:type="const hb_feature_t*">
            <type name="feature_t" c:type="hb_feature_t"/>
          </array>
        </parameter>
        <parameter name="num_user_features" transfer-ownership="none">
          <doc xml:space="preserve">The number of user-selected features</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="shaper_list" transfer-ownership="none">
          <doc xml:space="preserve">List of shapers to try</doc>
          <array c:type="const char* const*">
            <type name="utf8" c:type="char*"/>
          </array>
        </parameter>
      </parameters>
    </function>
    <function name="shape_plan_create2" c:identifier="hb_shape_plan_create2" version="1.4.0">
      <doc xml:space="preserve">The variable-font version of #hb_shape_plan_create.
Constructs a shaping plan for a combination of @face, @user_features, @props,
and @shaper_list, plus the variation-space coordinates @coords.</doc>
      <return-value transfer-ownership="full">
        <doc xml:space="preserve">The shaping plan</doc>
        <type name="shape_plan_t" c:type="hb_shape_plan_t*"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">#hb_face_t to use</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="props" transfer-ownership="none">
          <doc xml:space="preserve">The #hb_segment_properties_t of the segment</doc>
          <type name="segment_properties_t" c:type="const hb_segment_properties_t*"/>
        </parameter>
        <parameter name="user_features" transfer-ownership="none">
          <doc xml:space="preserve">The list of user-selected features</doc>
          <array length="3" zero-terminated="0" c:type="const hb_feature_t*">
            <type name="feature_t" c:type="hb_feature_t"/>
          </array>
        </parameter>
        <parameter name="num_user_features" transfer-ownership="none">
          <doc xml:space="preserve">The number of user-selected features</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="coords" transfer-ownership="none">
          <doc xml:space="preserve">The list of variation-space coordinates</doc>
          <array length="5" zero-terminated="0" c:type="const int*">
            <type name="gint" c:type="int"/>
          </array>
        </parameter>
        <parameter name="num_coords" transfer-ownership="none">
          <doc xml:space="preserve">The number of variation-space coordinates</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="shaper_list" transfer-ownership="none">
          <doc xml:space="preserve">List of shapers to try</doc>
          <array c:type="const char* const*">
            <type name="utf8" c:type="char*"/>
          </array>
        </parameter>
      </parameters>
    </function>
    <function name="shape_plan_create_cached" c:identifier="hb_shape_plan_create_cached" version="0.9.7">
      <doc xml:space="preserve">Creates a cached shaping plan suitable for reuse, for a combination
of @face, @user_features, @props, and @shaper_list.</doc>
      <return-value transfer-ownership="full">
        <doc xml:space="preserve">The shaping plan</doc>
        <type name="shape_plan_t" c:type="hb_shape_plan_t*"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">#hb_face_t to use</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="props" transfer-ownership="none">
          <doc xml:space="preserve">The #hb_segment_properties_t of the segment</doc>
          <type name="segment_properties_t" c:type="const hb_segment_properties_t*"/>
        </parameter>
        <parameter name="user_features" transfer-ownership="none">
          <doc xml:space="preserve">The list of user-selected features</doc>
          <array length="3" zero-terminated="0" c:type="const hb_feature_t*">
            <type name="feature_t" c:type="hb_feature_t"/>
          </array>
        </parameter>
        <parameter name="num_user_features" transfer-ownership="none">
          <doc xml:space="preserve">The number of user-selected features</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="shaper_list" transfer-ownership="none">
          <doc xml:space="preserve">List of shapers to try</doc>
          <array c:type="const char* const*">
            <type name="utf8" c:type="char*"/>
          </array>
        </parameter>
      </parameters>
    </function>
    <function name="shape_plan_create_cached2" c:identifier="hb_shape_plan_create_cached2" version="1.4.0">
      <doc xml:space="preserve">The variable-font version of #hb_shape_plan_create_cached.
Creates a cached shaping plan suitable for reuse, for a combination
of @face, @user_features, @props, and @shaper_list, plus the
variation-space coordinates @coords.</doc>
      <return-value transfer-ownership="full">
        <doc xml:space="preserve">The shaping plan</doc>
        <type name="shape_plan_t" c:type="hb_shape_plan_t*"/>
      </return-value>
      <parameters>
        <parameter name="face" transfer-ownership="none">
          <doc xml:space="preserve">#hb_face_t to use</doc>
          <type name="face_t" c:type="hb_face_t*"/>
        </parameter>
        <parameter name="props" transfer-ownership="none">
          <doc xml:space="preserve">The #hb_segment_properties_t of the segment</doc>
          <type name="segment_properties_t" c:type="const hb_segment_properties_t*"/>
        </parameter>
        <parameter name="user_features" transfer-ownership="none">
          <doc xml:space="preserve">The list of user-selected features</doc>
          <array length="3" zero-terminated="0" c:type="const hb_feature_t*">
            <type name="feature_t" c:type="hb_feature_t"/>
          </array>
        </parameter>
        <parameter name="num_user_features" transfer-ownership="none">
          <doc xml:space="preserve">The number of user-selected features</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="coords" transfer-ownership="none">
          <doc xml:space="preserve">The list of variation-space coordinates</doc>
          <array length="5" zero-terminated="0" c:type="const int*">
            <type name="gint" c:type="int"/>
          </array>
        </parameter>
        <parameter name="num_coords" transfer-ownership="none">
          <doc xml:space="preserve">The number of variation-space coordinates</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="shaper_list" transfer-ownership="none">
          <doc xml:space="preserve">List of shapers to try</doc>
          <array c:type="const char* const*">
            <type name="utf8" c:type="char*"/>
          </array>
        </parameter>
      </parameters>
    </function>
    <function name="shape_plan_destroy" c:identifier="hb_shape_plan_destroy" version="0.9.7" introspectable="0">
      <doc xml:space="preserve">Decreases the reference count on the given shaping plan. When the
reference count reaches zero, the shaping plan is destroyed,
freeing all memory.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="shape_plan" transfer-ownership="none">
          <doc xml:space="preserve">A shaping plan</doc>
          <type name="shape_plan_t" c:type="hb_shape_plan_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="shape_plan_execute" c:identifier="hb_shape_plan_execute" version="0.9.7">
      <doc xml:space="preserve">Executes the given shaping plan on the specified buffer, using
the given @font and @features.</doc>
      <return-value transfer-ownership="none">
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="shape_plan" transfer-ownership="none">
          <doc xml:space="preserve">A shaping plan</doc>
          <type name="shape_plan_t" c:type="hb_shape_plan_t*"/>
        </parameter>
        <parameter name="font" transfer-ownership="none">
          <doc xml:space="preserve">The #hb_font_t to use</doc>
          <type name="font_t" c:type="hb_font_t*"/>
        </parameter>
        <parameter name="buffer" transfer-ownership="none">
          <doc xml:space="preserve">The #hb_buffer_t to work upon</doc>
          <type name="buffer_t" c:type="hb_buffer_t*"/>
        </parameter>
        <parameter name="features" transfer-ownership="none">
          <doc xml:space="preserve">Features to enable</doc>
          <array length="4" zero-terminated="0" c:type="const hb_feature_t*">
            <type name="feature_t" c:type="hb_feature_t"/>
          </array>
        </parameter>
        <parameter name="num_features" transfer-ownership="none">
          <doc xml:space="preserve">The number of features to enable</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
      </parameters>
    </function>
    <function name="shape_plan_get_empty" c:identifier="hb_shape_plan_get_empty" version="0.9.7">
      <doc xml:space="preserve">Fetches the singleton empty shaping plan.</doc>
      <return-value transfer-ownership="full">
        <doc xml:space="preserve">The empty shaping plan</doc>
        <type name="shape_plan_t" c:type="hb_shape_plan_t*"/>
      </return-value>
    </function>
    <function name="shape_plan_get_shaper" c:identifier="hb_shape_plan_get_shaper" version="0.9.7">
      <doc xml:space="preserve">Fetches the shaper from a given shaping plan.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">The shaper</doc>
        <type name="utf8" c:type="const char*"/>
      </return-value>
      <parameters>
        <parameter name="shape_plan" transfer-ownership="none">
          <doc xml:space="preserve">A shaping plan</doc>
          <type name="shape_plan_t" c:type="hb_shape_plan_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="shape_plan_get_user_data" c:identifier="hb_shape_plan_get_user_data" version="0.9.7" introspectable="0">
      <doc xml:space="preserve">Fetches the user data associated with the specified key,
attached to the specified shaping plan.</doc>
      <return-value transfer-ownership="none" nullable="1">
        <doc xml:space="preserve">A pointer to the user data</doc>
        <type name="gpointer" c:type="void*"/>
      </return-value>
      <parameters>
        <parameter name="shape_plan" transfer-ownership="none">
          <doc xml:space="preserve">A shaping plan</doc>
          <type name="shape_plan_t" c:type="hb_shape_plan_t*"/>
        </parameter>
        <parameter name="key" transfer-ownership="none">
          <doc xml:space="preserve">The user-data key to query</doc>
          <type name="user_data_key_t" c:type="hb_user_data_key_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="shape_plan_reference" c:identifier="hb_shape_plan_reference" version="0.9.7" introspectable="0">
      <doc xml:space="preserve">Increases the reference count on the given shaping plan.</doc>
      <return-value transfer-ownership="full">
        <doc xml:space="preserve">@shape_plan</doc>
        <type name="shape_plan_t" c:type="hb_shape_plan_t*"/>
      </return-value>
      <parameters>
        <parameter name="shape_plan" transfer-ownership="none">
          <doc xml:space="preserve">A shaping plan</doc>
          <type name="shape_plan_t" c:type="hb_shape_plan_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="shape_plan_set_user_data" c:identifier="hb_shape_plan_set_user_data" version="0.9.7" introspectable="0">
      <doc xml:space="preserve">Attaches a user-data key/data pair to the given shaping plan.</doc>
      <return-value transfer-ownership="none">
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="shape_plan" transfer-ownership="none">
          <doc xml:space="preserve">A shaping plan</doc>
          <type name="shape_plan_t" c:type="hb_shape_plan_t*"/>
        </parameter>
        <parameter name="key" transfer-ownership="none">
          <doc xml:space="preserve">The user-data key to set</doc>
          <type name="user_data_key_t" c:type="hb_user_data_key_t*"/>
        </parameter>
        <parameter name="data" transfer-ownership="none" nullable="1" allow-none="1">
          <doc xml:space="preserve">A pointer to the user data</doc>
          <type name="gpointer" c:type="void*"/>
        </parameter>
        <parameter name="destroy" transfer-ownership="none">
          <doc xml:space="preserve">A callback to call when @data is not needed anymore</doc>
          <type name="destroy_func_t" c:type="hb_destroy_func_t"/>
        </parameter>
        <parameter name="replace" transfer-ownership="none">
          <doc xml:space="preserve">Whether to replace an existing data with the same key</doc>
          <type name="bool_t" c:type="hb_bool_t"/>
        </parameter>
      </parameters>
    </function>
    <record name="shape_plan_t" c:type="hb_shape_plan_t" glib:type-name="hb_shape_plan_t" glib:get-type="hb_gobject_shape_plan_get_type" c:symbol-prefix="gobject_shape_plan">
      <doc xml:space="preserve">Data type for holding a shaping plan.

Shape plans contain information about how HarfBuzz will shape a
particular text segment, based on the segment's properties and the
capabilities in the font face in use.

Shape plans can be queried about how shaping will perform, given a set
of specific input parameters (script, language, direction, features,
etc.).</doc>
    </record>
    <function name="tag_from_string" c:identifier="hb_tag_from_string" version="0.9.2">
      <doc xml:space="preserve">Converts a string into an #hb_tag_t. Valid tags
are four characters. Shorter input strings will be
padded with spaces. Longer input strings will be
truncated.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">The #hb_tag_t corresponding to @str</doc>
        <type name="tag_t" c:type="hb_tag_t"/>
      </return-value>
      <parameters>
        <parameter name="str" transfer-ownership="none">
          <doc xml:space="preserve">String to convert</doc>
          <array length="1" zero-terminated="0" c:type="const char*">
            <type name="guint8"/>
          </array>
        </parameter>
        <parameter name="len" transfer-ownership="none">
          <doc xml:space="preserve">Length of @str, or -1 if it is %NULL-terminated</doc>
          <type name="gint" c:type="int"/>
        </parameter>
      </parameters>
    </function>
    <function name="tag_to_string" c:identifier="hb_tag_to_string" version="0.9.5">
      <doc xml:space="preserve">Converts an #hb_tag_t to a string and returns it in @buf.
Strings will be four characters long.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="tag" transfer-ownership="none">
          <doc xml:space="preserve">#hb_tag_t to convert</doc>
          <type name="tag_t" c:type="hb_tag_t"/>
        </parameter>
        <parameter name="buf" direction="out" caller-allocates="1" transfer-ownership="none">
          <doc xml:space="preserve">Converted string</doc>
          <array zero-terminated="0" c:type="char*" fixed-size="4">
            <type name="guint8"/>
          </array>
        </parameter>
      </parameters>
    </function>
    <function name="unicode_combining_class" c:identifier="hb_unicode_combining_class" version="0.9.2">
      <doc xml:space="preserve">Retrieves the Canonical Combining Class (ccc) property
of code point @unicode.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">The #hb_unicode_combining_class_t of @unicode</doc>
        <type name="unicode_combining_class_t" c:type="hb_unicode_combining_class_t"/>
      </return-value>
      <parameters>
        <parameter name="ufuncs" transfer-ownership="none">
          <doc xml:space="preserve">The Unicode-functions structure</doc>
          <type name="unicode_funcs_t" c:type="hb_unicode_funcs_t*"/>
        </parameter>
        <parameter name="unicode" transfer-ownership="none">
          <doc xml:space="preserve">The code point to query</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
      </parameters>
    </function>
    <callback name="unicode_combining_class_func_t" c:type="hb_unicode_combining_class_func_t">
      <doc xml:space="preserve">A virtual method for the #hb_unicode_funcs_t structure.

This method should retrieve the Canonical Combining Class (ccc)
property for a specified Unicode code point.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">The #hb_unicode_combining_class_t of @unicode</doc>
        <type name="unicode_combining_class_t" c:type="hb_unicode_combining_class_t"/>
      </return-value>
      <parameters>
        <parameter name="ufuncs" transfer-ownership="none">
          <doc xml:space="preserve">A Unicode-functions structure</doc>
          <type name="unicode_funcs_t" c:type="hb_unicode_funcs_t*"/>
        </parameter>
        <parameter name="unicode" transfer-ownership="none">
          <doc xml:space="preserve">The code point to query</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="user_data" transfer-ownership="none" nullable="1" allow-none="1" closure="2">
          <doc xml:space="preserve">User data pointer passed by the caller</doc>
          <type name="gpointer" c:type="void*"/>
        </parameter>
      </parameters>
    </callback>
    <enumeration name="unicode_combining_class_t" glib:type-name="hb_unicode_combining_class_t" glib:get-type="hb_gobject_unicode_combining_class_get_type" c:type="hb_unicode_combining_class_t">
      <doc xml:space="preserve">Data type for the Canonical_Combining_Class (ccc) property
from the Unicode Character Database.

&lt;note&gt;Note: newer versions of Unicode may add new values.
Client programs should be ready to handle any value in the 0..254 range
being returned from hb_unicode_combining_class().&lt;/note&gt;</doc>
      <member name="not_reordered" value="0" c:identifier="HB_UNICODE_COMBINING_CLASS_NOT_REORDERED" glib:nick="not-reordered" glib:name="HB_UNICODE_COMBINING_CLASS_NOT_REORDERED">
        <doc xml:space="preserve">Spacing and enclosing marks; also many vowel and consonant signs, even if nonspacing</doc>
      </member>
      <member name="overlay" value="1" c:identifier="HB_UNICODE_COMBINING_CLASS_OVERLAY" glib:nick="overlay" glib:name="HB_UNICODE_COMBINING_CLASS_OVERLAY">
        <doc xml:space="preserve">Marks which overlay a base letter or symbol</doc>
      </member>
      <member name="nukta" value="7" c:identifier="HB_UNICODE_COMBINING_CLASS_NUKTA" glib:nick="nukta" glib:name="HB_UNICODE_COMBINING_CLASS_NUKTA">
        <doc xml:space="preserve">Diacritic nukta marks in Brahmi-derived scripts</doc>
      </member>
      <member name="kana_voicing" value="8" c:identifier="HB_UNICODE_COMBINING_CLASS_KANA_VOICING" glib:nick="kana-voicing" glib:name="HB_UNICODE_COMBINING_CLASS_KANA_VOICING">
        <doc xml:space="preserve">Hiragana/Katakana voicing marks</doc>
      </member>
      <member name="virama" value="9" c:identifier="HB_UNICODE_COMBINING_CLASS_VIRAMA" glib:nick="virama" glib:name="HB_UNICODE_COMBINING_CLASS_VIRAMA">
        <doc xml:space="preserve">Viramas</doc>
      </member>
      <member name="ccc10" value="10" c:identifier="HB_UNICODE_COMBINING_CLASS_CCC10" glib:nick="ccc10" glib:name="HB_UNICODE_COMBINING_CLASS_CCC10">
        <doc xml:space="preserve">[Hebrew]</doc>
      </member>
      <member name="ccc11" value="11" c:identifier="HB_UNICODE_COMBINING_CLASS_CCC11" glib:nick="ccc11" glib:name="HB_UNICODE_COMBINING_CLASS_CCC11">
        <doc xml:space="preserve">[Hebrew]</doc>
      </member>
      <member name="ccc12" value="12" c:identifier="HB_UNICODE_COMBINING_CLASS_CCC12" glib:nick="ccc12" glib:name="HB_UNICODE_COMBINING_CLASS_CCC12">
        <doc xml:space="preserve">[Hebrew]</doc>
      </member>
      <member name="ccc13" value="13" c:identifier="HB_UNICODE_COMBINING_CLASS_CCC13" glib:nick="ccc13" glib:name="HB_UNICODE_COMBINING_CLASS_CCC13">
        <doc xml:space="preserve">[Hebrew]</doc>
      </member>
      <member name="ccc14" value="14" c:identifier="HB_UNICODE_COMBINING_CLASS_CCC14" glib:nick="ccc14" glib:name="HB_UNICODE_COMBINING_CLASS_CCC14">
        <doc xml:space="preserve">[Hebrew]</doc>
      </member>
      <member name="ccc15" value="15" c:identifier="HB_UNICODE_COMBINING_CLASS_CCC15" glib:nick="ccc15" glib:name="HB_UNICODE_COMBINING_CLASS_CCC15">
        <doc xml:space="preserve">[Hebrew]</doc>
      </member>
      <member name="ccc16" value="16" c:identifier="HB_UNICODE_COMBINING_CLASS_CCC16" glib:nick="ccc16" glib:name="HB_UNICODE_COMBINING_CLASS_CCC16">
        <doc xml:space="preserve">[Hebrew]</doc>
      </member>
      <member name="ccc17" value="17" c:identifier="HB_UNICODE_COMBINING_CLASS_CCC17" glib:nick="ccc17" glib:name="HB_UNICODE_COMBINING_CLASS_CCC17">
        <doc xml:space="preserve">[Hebrew]</doc>
      </member>
      <member name="ccc18" value="18" c:identifier="HB_UNICODE_COMBINING_CLASS_CCC18" glib:nick="ccc18" glib:name="HB_UNICODE_COMBINING_CLASS_CCC18">
        <doc xml:space="preserve">[Hebrew]</doc>
      </member>
      <member name="ccc19" value="19" c:identifier="HB_UNICODE_COMBINING_CLASS_CCC19" glib:nick="ccc19" glib:name="HB_UNICODE_COMBINING_CLASS_CCC19">
        <doc xml:space="preserve">[Hebrew]</doc>
      </member>
      <member name="ccc20" value="20" c:identifier="HB_UNICODE_COMBINING_CLASS_CCC20" glib:nick="ccc20" glib:name="HB_UNICODE_COMBINING_CLASS_CCC20">
        <doc xml:space="preserve">[Hebrew]</doc>
      </member>
      <member name="ccc21" value="21" c:identifier="HB_UNICODE_COMBINING_CLASS_CCC21" glib:nick="ccc21" glib:name="HB_UNICODE_COMBINING_CLASS_CCC21">
        <doc xml:space="preserve">[Hebrew]</doc>
      </member>
      <member name="ccc22" value="22" c:identifier="HB_UNICODE_COMBINING_CLASS_CCC22" glib:nick="ccc22" glib:name="HB_UNICODE_COMBINING_CLASS_CCC22">
        <doc xml:space="preserve">[Hebrew]</doc>
      </member>
      <member name="ccc23" value="23" c:identifier="HB_UNICODE_COMBINING_CLASS_CCC23" glib:nick="ccc23" glib:name="HB_UNICODE_COMBINING_CLASS_CCC23">
        <doc xml:space="preserve">[Hebrew]</doc>
      </member>
      <member name="ccc24" value="24" c:identifier="HB_UNICODE_COMBINING_CLASS_CCC24" glib:nick="ccc24" glib:name="HB_UNICODE_COMBINING_CLASS_CCC24">
        <doc xml:space="preserve">[Hebrew]</doc>
      </member>
      <member name="ccc25" value="25" c:identifier="HB_UNICODE_COMBINING_CLASS_CCC25" glib:nick="ccc25" glib:name="HB_UNICODE_COMBINING_CLASS_CCC25">
        <doc xml:space="preserve">[Hebrew]</doc>
      </member>
      <member name="ccc26" value="26" c:identifier="HB_UNICODE_COMBINING_CLASS_CCC26" glib:nick="ccc26" glib:name="HB_UNICODE_COMBINING_CLASS_CCC26">
        <doc xml:space="preserve">[Hebrew]</doc>
      </member>
      <member name="ccc27" value="27" c:identifier="HB_UNICODE_COMBINING_CLASS_CCC27" glib:nick="ccc27" glib:name="HB_UNICODE_COMBINING_CLASS_CCC27">
        <doc xml:space="preserve">[Arabic]</doc>
      </member>
      <member name="ccc28" value="28" c:identifier="HB_UNICODE_COMBINING_CLASS_CCC28" glib:nick="ccc28" glib:name="HB_UNICODE_COMBINING_CLASS_CCC28">
        <doc xml:space="preserve">[Arabic]</doc>
      </member>
      <member name="ccc29" value="29" c:identifier="HB_UNICODE_COMBINING_CLASS_CCC29" glib:nick="ccc29" glib:name="HB_UNICODE_COMBINING_CLASS_CCC29">
        <doc xml:space="preserve">[Arabic]</doc>
      </member>
      <member name="ccc30" value="30" c:identifier="HB_UNICODE_COMBINING_CLASS_CCC30" glib:nick="ccc30" glib:name="HB_UNICODE_COMBINING_CLASS_CCC30">
        <doc xml:space="preserve">[Arabic]</doc>
      </member>
      <member name="ccc31" value="31" c:identifier="HB_UNICODE_COMBINING_CLASS_CCC31" glib:nick="ccc31" glib:name="HB_UNICODE_COMBINING_CLASS_CCC31">
        <doc xml:space="preserve">[Arabic]</doc>
      </member>
      <member name="ccc32" value="32" c:identifier="HB_UNICODE_COMBINING_CLASS_CCC32" glib:nick="ccc32" glib:name="HB_UNICODE_COMBINING_CLASS_CCC32">
        <doc xml:space="preserve">[Arabic]</doc>
      </member>
      <member name="ccc33" value="33" c:identifier="HB_UNICODE_COMBINING_CLASS_CCC33" glib:nick="ccc33" glib:name="HB_UNICODE_COMBINING_CLASS_CCC33">
        <doc xml:space="preserve">[Arabic]</doc>
      </member>
      <member name="ccc34" value="34" c:identifier="HB_UNICODE_COMBINING_CLASS_CCC34" glib:nick="ccc34" glib:name="HB_UNICODE_COMBINING_CLASS_CCC34">
        <doc xml:space="preserve">[Arabic]</doc>
      </member>
      <member name="ccc35" value="35" c:identifier="HB_UNICODE_COMBINING_CLASS_CCC35" glib:nick="ccc35" glib:name="HB_UNICODE_COMBINING_CLASS_CCC35">
        <doc xml:space="preserve">[Arabic]</doc>
      </member>
      <member name="ccc36" value="36" c:identifier="HB_UNICODE_COMBINING_CLASS_CCC36" glib:nick="ccc36" glib:name="HB_UNICODE_COMBINING_CLASS_CCC36">
        <doc xml:space="preserve">[Syriac]</doc>
      </member>
      <member name="ccc84" value="84" c:identifier="HB_UNICODE_COMBINING_CLASS_CCC84" glib:nick="ccc84" glib:name="HB_UNICODE_COMBINING_CLASS_CCC84">
        <doc xml:space="preserve">[Telugu]</doc>
      </member>
      <member name="ccc91" value="91" c:identifier="HB_UNICODE_COMBINING_CLASS_CCC91" glib:nick="ccc91" glib:name="HB_UNICODE_COMBINING_CLASS_CCC91">
        <doc xml:space="preserve">[Telugu]</doc>
      </member>
      <member name="ccc103" value="103" c:identifier="HB_UNICODE_COMBINING_CLASS_CCC103" glib:nick="ccc103" glib:name="HB_UNICODE_COMBINING_CLASS_CCC103">
        <doc xml:space="preserve">[Thai]</doc>
      </member>
      <member name="ccc107" value="107" c:identifier="HB_UNICODE_COMBINING_CLASS_CCC107" glib:nick="ccc107" glib:name="HB_UNICODE_COMBINING_CLASS_CCC107">
        <doc xml:space="preserve">[Thai]</doc>
      </member>
      <member name="ccc118" value="118" c:identifier="HB_UNICODE_COMBINING_CLASS_CCC118" glib:nick="ccc118" glib:name="HB_UNICODE_COMBINING_CLASS_CCC118">
        <doc xml:space="preserve">[Lao]</doc>
      </member>
      <member name="ccc122" value="122" c:identifier="HB_UNICODE_COMBINING_CLASS_CCC122" glib:nick="ccc122" glib:name="HB_UNICODE_COMBINING_CLASS_CCC122">
        <doc xml:space="preserve">[Lao]</doc>
      </member>
      <member name="ccc129" value="129" c:identifier="HB_UNICODE_COMBINING_CLASS_CCC129" glib:nick="ccc129" glib:name="HB_UNICODE_COMBINING_CLASS_CCC129">
        <doc xml:space="preserve">[Tibetan]</doc>
      </member>
      <member name="ccc130" value="130" c:identifier="HB_UNICODE_COMBINING_CLASS_CCC130" glib:nick="ccc130" glib:name="HB_UNICODE_COMBINING_CLASS_CCC130">
        <doc xml:space="preserve">[Tibetan]</doc>
      </member>
      <member name="ccc133" value="132" c:identifier="HB_UNICODE_COMBINING_CLASS_CCC133" glib:nick="ccc133" glib:name="HB_UNICODE_COMBINING_CLASS_CCC133">
        <doc xml:space="preserve">[Tibetan]</doc>
      </member>
      <member name="attached_below_left" value="200" c:identifier="HB_UNICODE_COMBINING_CLASS_ATTACHED_BELOW_LEFT" glib:nick="attached-below-left" glib:name="HB_UNICODE_COMBINING_CLASS_ATTACHED_BELOW_LEFT">
        <doc xml:space="preserve">Marks attached at the bottom left</doc>
      </member>
      <member name="attached_below" value="202" c:identifier="HB_UNICODE_COMBINING_CLASS_ATTACHED_BELOW" glib:nick="attached-below" glib:name="HB_UNICODE_COMBINING_CLASS_ATTACHED_BELOW">
        <doc xml:space="preserve">Marks attached directly below</doc>
      </member>
      <member name="attached_above" value="214" c:identifier="HB_UNICODE_COMBINING_CLASS_ATTACHED_ABOVE" glib:nick="attached-above" glib:name="HB_UNICODE_COMBINING_CLASS_ATTACHED_ABOVE">
        <doc xml:space="preserve">Marks attached directly above</doc>
      </member>
      <member name="attached_above_right" value="216" c:identifier="HB_UNICODE_COMBINING_CLASS_ATTACHED_ABOVE_RIGHT" glib:nick="attached-above-right" glib:name="HB_UNICODE_COMBINING_CLASS_ATTACHED_ABOVE_RIGHT">
        <doc xml:space="preserve">Marks attached at the top right</doc>
      </member>
      <member name="below_left" value="218" c:identifier="HB_UNICODE_COMBINING_CLASS_BELOW_LEFT" glib:nick="below-left" glib:name="HB_UNICODE_COMBINING_CLASS_BELOW_LEFT">
        <doc xml:space="preserve">Distinct marks at the bottom left</doc>
      </member>
      <member name="below" value="220" c:identifier="HB_UNICODE_COMBINING_CLASS_BELOW" glib:nick="below" glib:name="HB_UNICODE_COMBINING_CLASS_BELOW">
        <doc xml:space="preserve">Distinct marks directly below</doc>
      </member>
      <member name="below_right" value="222" c:identifier="HB_UNICODE_COMBINING_CLASS_BELOW_RIGHT" glib:nick="below-right" glib:name="HB_UNICODE_COMBINING_CLASS_BELOW_RIGHT">
        <doc xml:space="preserve">Distinct marks at the bottom right</doc>
      </member>
      <member name="left" value="224" c:identifier="HB_UNICODE_COMBINING_CLASS_LEFT" glib:nick="left" glib:name="HB_UNICODE_COMBINING_CLASS_LEFT">
        <doc xml:space="preserve">Distinct marks to the left</doc>
      </member>
      <member name="right" value="226" c:identifier="HB_UNICODE_COMBINING_CLASS_RIGHT" glib:nick="right" glib:name="HB_UNICODE_COMBINING_CLASS_RIGHT">
        <doc xml:space="preserve">Distinct marks to the right</doc>
      </member>
      <member name="above_left" value="228" c:identifier="HB_UNICODE_COMBINING_CLASS_ABOVE_LEFT" glib:nick="above-left" glib:name="HB_UNICODE_COMBINING_CLASS_ABOVE_LEFT">
        <doc xml:space="preserve">Distinct marks at the top left</doc>
      </member>
      <member name="above" value="230" c:identifier="HB_UNICODE_COMBINING_CLASS_ABOVE" glib:nick="above" glib:name="HB_UNICODE_COMBINING_CLASS_ABOVE">
        <doc xml:space="preserve">Distinct marks directly above</doc>
      </member>
      <member name="above_right" value="232" c:identifier="HB_UNICODE_COMBINING_CLASS_ABOVE_RIGHT" glib:nick="above-right" glib:name="HB_UNICODE_COMBINING_CLASS_ABOVE_RIGHT">
        <doc xml:space="preserve">Distinct marks at the top right</doc>
      </member>
      <member name="double_below" value="233" c:identifier="HB_UNICODE_COMBINING_CLASS_DOUBLE_BELOW" glib:nick="double-below" glib:name="HB_UNICODE_COMBINING_CLASS_DOUBLE_BELOW">
        <doc xml:space="preserve">Distinct marks subtending two bases</doc>
      </member>
      <member name="double_above" value="234" c:identifier="HB_UNICODE_COMBINING_CLASS_DOUBLE_ABOVE" glib:nick="double-above" glib:name="HB_UNICODE_COMBINING_CLASS_DOUBLE_ABOVE">
        <doc xml:space="preserve">Distinct marks extending above two bases</doc>
      </member>
      <member name="iota_subscript" value="240" c:identifier="HB_UNICODE_COMBINING_CLASS_IOTA_SUBSCRIPT" glib:nick="iota-subscript" glib:name="HB_UNICODE_COMBINING_CLASS_IOTA_SUBSCRIPT">
        <doc xml:space="preserve">Greek iota subscript only</doc>
      </member>
      <member name="invalid" value="255" c:identifier="HB_UNICODE_COMBINING_CLASS_INVALID" glib:nick="invalid" glib:name="HB_UNICODE_COMBINING_CLASS_INVALID">
        <doc xml:space="preserve">Invalid combining class</doc>
      </member>
    </enumeration>
    <function name="unicode_compose" c:identifier="hb_unicode_compose" version="0.9.2">
      <doc xml:space="preserve">Composes the code point sequence @a,@b by canonical equivalence into
code point @ab.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">True is @a,@b composed, false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="ufuncs" transfer-ownership="none">
          <doc xml:space="preserve">The Unicode-functions structure</doc>
          <type name="unicode_funcs_t" c:type="hb_unicode_funcs_t*"/>
        </parameter>
        <parameter name="a" transfer-ownership="none">
          <doc xml:space="preserve">The first code point to compose</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="b" transfer-ownership="none">
          <doc xml:space="preserve">The second code point to compose</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="ab" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The composed code point</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t*"/>
        </parameter>
      </parameters>
    </function>
    <callback name="unicode_compose_func_t" c:type="hb_unicode_compose_func_t">
      <doc xml:space="preserve">A virtual method for the #hb_unicode_funcs_t structure.

This method should compose a sequence of two input Unicode code
points by canonical equivalence, returning the composed code
point in a #hb_codepoint_t output parameter (if successful).
The method must return an #hb_bool_t indicating the success
of the composition.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">True is @a,@b composed, false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="ufuncs" transfer-ownership="none">
          <doc xml:space="preserve">A Unicode-functions structure</doc>
          <type name="unicode_funcs_t" c:type="hb_unicode_funcs_t*"/>
        </parameter>
        <parameter name="a" transfer-ownership="none">
          <doc xml:space="preserve">The first code point to compose</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="b" transfer-ownership="none">
          <doc xml:space="preserve">The second code point to compose</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="ab" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The composed code point</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t*"/>
        </parameter>
        <parameter name="user_data" transfer-ownership="none" nullable="1" allow-none="1" closure="4">
          <doc xml:space="preserve">user data pointer passed by the caller</doc>
          <type name="gpointer" c:type="void*"/>
        </parameter>
      </parameters>
    </callback>
    <function name="unicode_decompose" c:identifier="hb_unicode_decompose" version="0.9.2">
      <doc xml:space="preserve">Decomposes code point @ab by canonical equivalence, into code points
@a and @b.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">True if @ab decomposed, false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="ufuncs" transfer-ownership="none">
          <doc xml:space="preserve">The Unicode-functions structure</doc>
          <type name="unicode_funcs_t" c:type="hb_unicode_funcs_t*"/>
        </parameter>
        <parameter name="ab" transfer-ownership="none">
          <doc xml:space="preserve">The code point to decompose</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="a" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The first decomposed code point</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t*"/>
        </parameter>
        <parameter name="b" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The second decomposed code point</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="unicode_decompose_compatibility" c:identifier="hb_unicode_decompose_compatibility" version="0.9.2" deprecated="1" deprecated-version="2.0.0">
      <doc xml:space="preserve">Fetches the compatibility decomposition of a Unicode
code point. Deprecated.</doc>
      <return-value transfer-ownership="none">
        <type name="guint" c:type="unsigned int"/>
      </return-value>
      <parameters>
        <parameter name="ufuncs" transfer-ownership="none">
          <doc xml:space="preserve">The Unicode-functions structure</doc>
          <type name="unicode_funcs_t" c:type="hb_unicode_funcs_t*"/>
        </parameter>
        <parameter name="u" transfer-ownership="none">
          <doc xml:space="preserve">Code point to decompose</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="decomposed" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">Compatibility decomposition of @u</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t*"/>
        </parameter>
      </parameters>
    </function>
    <callback name="unicode_decompose_compatibility_func_t" c:type="hb_unicode_decompose_compatibility_func_t" deprecated="1" deprecated-version="2.0.0">
      <doc xml:space="preserve">Fully decompose @u to its Unicode compatibility decomposition. The codepoints of the decomposition will be written to @decomposed.
The complete length of the decomposition will be returned.

If @u has no compatibility decomposition, zero should be returned.

The Unicode standard guarantees that a buffer of length %HB_UNICODE_MAX_DECOMPOSITION_LEN codepoints will always be sufficient for any
compatibility decomposition plus an terminating value of 0.  Consequently, @decompose must be allocated by the caller to be at least this length.  Implementations
of this function type must ensure that they do not write past the provided array.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">number of codepoints in the full compatibility decomposition of @u, or 0 if no decomposition available.</doc>
        <type name="guint" c:type="unsigned int"/>
      </return-value>
      <parameters>
        <parameter name="ufuncs" transfer-ownership="none">
          <doc xml:space="preserve">a Unicode function structure</doc>
          <type name="unicode_funcs_t" c:type="hb_unicode_funcs_t*"/>
        </parameter>
        <parameter name="u" transfer-ownership="none">
          <doc xml:space="preserve">codepoint to decompose</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="decomposed" transfer-ownership="none">
          <doc xml:space="preserve">address of codepoint array (of length %HB_UNICODE_MAX_DECOMPOSITION_LEN) to write decomposition into</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t*"/>
        </parameter>
        <parameter name="user_data" transfer-ownership="none" nullable="1" allow-none="1" closure="3">
          <doc xml:space="preserve">user data pointer as passed to hb_unicode_funcs_set_decompose_compatibility_func()</doc>
          <type name="gpointer" c:type="void*"/>
        </parameter>
      </parameters>
    </callback>
    <callback name="unicode_decompose_func_t" c:type="hb_unicode_decompose_func_t">
      <doc xml:space="preserve">A virtual method for the #hb_unicode_funcs_t structure.

This method should decompose an input Unicode code point,
returning the two decomposed code points in #hb_codepoint_t
output parameters (if successful). The method must return an
#hb_bool_t indicating the success of the composition.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">True if @ab decomposed, false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="ufuncs" transfer-ownership="none">
          <doc xml:space="preserve">A Unicode-functions structure</doc>
          <type name="unicode_funcs_t" c:type="hb_unicode_funcs_t*"/>
        </parameter>
        <parameter name="ab" transfer-ownership="none">
          <doc xml:space="preserve">The code point to decompose</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="a" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The first decomposed code point</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t*"/>
        </parameter>
        <parameter name="b" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">The second decomposed code point</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t*"/>
        </parameter>
        <parameter name="user_data" transfer-ownership="none" nullable="1" allow-none="1" closure="4">
          <doc xml:space="preserve">user data pointer passed by the caller</doc>
          <type name="gpointer" c:type="void*"/>
        </parameter>
      </parameters>
    </callback>
    <function name="unicode_eastasian_width" c:identifier="hb_unicode_eastasian_width" version="0.9.2" deprecated="1" deprecated-version="2.0.0">
      <return-value transfer-ownership="none">
        <type name="guint" c:type="unsigned int"/>
      </return-value>
      <parameters>
        <parameter name="ufuncs" transfer-ownership="none">
          <type name="unicode_funcs_t" c:type="hb_unicode_funcs_t*"/>
        </parameter>
        <parameter name="unicode" transfer-ownership="none">
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
      </parameters>
    </function>
    <callback name="unicode_eastasian_width_func_t" c:type="hb_unicode_eastasian_width_func_t" deprecated="1" deprecated-version="2.0.0">
      <return-value transfer-ownership="none">
        <type name="guint" c:type="unsigned int"/>
      </return-value>
      <parameters>
        <parameter name="ufuncs" transfer-ownership="none">
          <type name="unicode_funcs_t" c:type="hb_unicode_funcs_t*"/>
        </parameter>
        <parameter name="unicode" transfer-ownership="none">
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="user_data" transfer-ownership="none" nullable="1" allow-none="1" closure="2">
          <type name="gpointer" c:type="void*"/>
        </parameter>
      </parameters>
    </callback>
    <function name="unicode_funcs_create" c:identifier="hb_unicode_funcs_create" version="0.9.2">
      <doc xml:space="preserve">Creates a new #hb_unicode_funcs_t structure of Unicode functions.</doc>
      <return-value transfer-ownership="full">
        <doc xml:space="preserve">The Unicode-functions structure</doc>
        <type name="unicode_funcs_t" c:type="hb_unicode_funcs_t*"/>
      </return-value>
      <parameters>
        <parameter name="parent" transfer-ownership="none" nullable="1" allow-none="1">
          <doc xml:space="preserve">Parent Unicode-functions structure</doc>
          <type name="unicode_funcs_t" c:type="hb_unicode_funcs_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="unicode_funcs_destroy" c:identifier="hb_unicode_funcs_destroy" version="0.9.2" introspectable="0">
      <doc xml:space="preserve">Decreases the reference count on a Unicode-functions structure. When
the reference count reaches zero, the Unicode-functions structure is
destroyed, freeing all memory.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="ufuncs" transfer-ownership="none">
          <doc xml:space="preserve">The Unicode-functions structure</doc>
          <type name="unicode_funcs_t" c:type="hb_unicode_funcs_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="unicode_funcs_get_default" c:identifier="hb_unicode_funcs_get_default" version="0.9.2">
      <doc xml:space="preserve">Fetches a pointer to the default Unicode-functions structure that is used
when no functions are explicitly set on #hb_buffer_t.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">a pointer to the #hb_unicode_funcs_t Unicode-functions structure</doc>
        <type name="unicode_funcs_t" c:type="hb_unicode_funcs_t*"/>
      </return-value>
    </function>
    <function name="unicode_funcs_get_empty" c:identifier="hb_unicode_funcs_get_empty" version="0.9.2">
      <doc xml:space="preserve">Fetches the singleton empty Unicode-functions structure.</doc>
      <return-value transfer-ownership="full">
        <doc xml:space="preserve">The empty Unicode-functions structure</doc>
        <type name="unicode_funcs_t" c:type="hb_unicode_funcs_t*"/>
      </return-value>
    </function>
    <function name="unicode_funcs_get_parent" c:identifier="hb_unicode_funcs_get_parent" version="0.9.2">
      <doc xml:space="preserve">Fetches the parent of the Unicode-functions structure
@ufuncs.</doc>
      <return-value transfer-ownership="full">
        <doc xml:space="preserve">The parent Unicode-functions structure</doc>
        <type name="unicode_funcs_t" c:type="hb_unicode_funcs_t*"/>
      </return-value>
      <parameters>
        <parameter name="ufuncs" transfer-ownership="none">
          <doc xml:space="preserve">The Unicode-functions structure</doc>
          <type name="unicode_funcs_t" c:type="hb_unicode_funcs_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="unicode_funcs_get_user_data" c:identifier="hb_unicode_funcs_get_user_data" version="0.9.2" introspectable="0">
      <doc xml:space="preserve">Fetches the user-data associated with the specified key,
attached to the specified Unicode-functions structure.</doc>
      <return-value transfer-ownership="none" nullable="1">
        <doc xml:space="preserve">A pointer to the user data</doc>
        <type name="gpointer" c:type="void*"/>
      </return-value>
      <parameters>
        <parameter name="ufuncs" transfer-ownership="none">
          <doc xml:space="preserve">The Unicode-functions structure</doc>
          <type name="unicode_funcs_t" c:type="hb_unicode_funcs_t*"/>
        </parameter>
        <parameter name="key" transfer-ownership="none">
          <doc xml:space="preserve">The user-data key to query</doc>
          <type name="user_data_key_t" c:type="hb_user_data_key_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="unicode_funcs_is_immutable" c:identifier="hb_unicode_funcs_is_immutable" version="0.9.2">
      <doc xml:space="preserve">Tests whether the specified Unicode-functions structure
is immutable.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%true if @ufuncs is immutable, false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="ufuncs" transfer-ownership="none">
          <doc xml:space="preserve">The Unicode-functions structure</doc>
          <type name="unicode_funcs_t" c:type="hb_unicode_funcs_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="unicode_funcs_make_immutable" c:identifier="hb_unicode_funcs_make_immutable" version="0.9.2">
      <doc xml:space="preserve">Makes the specified Unicode-functions structure
immutable.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="ufuncs" transfer-ownership="none">
          <doc xml:space="preserve">The Unicode-functions structure</doc>
          <type name="unicode_funcs_t" c:type="hb_unicode_funcs_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="unicode_funcs_reference" c:identifier="hb_unicode_funcs_reference" version="0.9.2" introspectable="0">
      <doc xml:space="preserve">Increases the reference count on a Unicode-functions structure.</doc>
      <return-value transfer-ownership="full">
        <doc xml:space="preserve">The Unicode-functions structure</doc>
        <type name="unicode_funcs_t" c:type="hb_unicode_funcs_t*"/>
      </return-value>
      <parameters>
        <parameter name="ufuncs" transfer-ownership="none">
          <doc xml:space="preserve">The Unicode-functions structure</doc>
          <type name="unicode_funcs_t" c:type="hb_unicode_funcs_t*"/>
        </parameter>
      </parameters>
    </function>
    <function name="unicode_funcs_set_combining_class_func" c:identifier="hb_unicode_funcs_set_combining_class_func" version="0.9.2">
      <doc xml:space="preserve">Sets the implementation function for #hb_unicode_combining_class_func_t.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="ufuncs" transfer-ownership="none">
          <doc xml:space="preserve">A Unicode-functions structure</doc>
          <type name="unicode_funcs_t" c:type="hb_unicode_funcs_t*"/>
        </parameter>
        <parameter name="func" transfer-ownership="none" scope="notified" closure="2" destroy="3">
          <doc xml:space="preserve">The callback function to assign</doc>
          <type name="unicode_combining_class_func_t" c:type="hb_unicode_combining_class_func_t"/>
        </parameter>
        <parameter name="user_data" transfer-ownership="none" nullable="1" allow-none="1">
          <doc xml:space="preserve">Data to pass to @func</doc>
          <type name="gpointer" c:type="void*"/>
        </parameter>
        <parameter name="destroy" transfer-ownership="none" scope="notified">
          <doc xml:space="preserve">The function to call when @user_data is not needed anymore</doc>
          <type name="destroy_func_t" c:type="hb_destroy_func_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="unicode_funcs_set_compose_func" c:identifier="hb_unicode_funcs_set_compose_func" version="0.9.2">
      <doc xml:space="preserve">Sets the implementation function for #hb_unicode_compose_func_t.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="ufuncs" transfer-ownership="none">
          <doc xml:space="preserve">A Unicode-functions structure</doc>
          <type name="unicode_funcs_t" c:type="hb_unicode_funcs_t*"/>
        </parameter>
        <parameter name="func" transfer-ownership="none" scope="notified" closure="2" destroy="3">
          <doc xml:space="preserve">The callback function to assign</doc>
          <type name="unicode_compose_func_t" c:type="hb_unicode_compose_func_t"/>
        </parameter>
        <parameter name="user_data" transfer-ownership="none" nullable="1" allow-none="1">
          <doc xml:space="preserve">Data to pass to @func</doc>
          <type name="gpointer" c:type="void*"/>
        </parameter>
        <parameter name="destroy" transfer-ownership="none" scope="notified">
          <doc xml:space="preserve">The function to call when @user_data is not needed anymore</doc>
          <type name="destroy_func_t" c:type="hb_destroy_func_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="unicode_funcs_set_decompose_compatibility_func" c:identifier="hb_unicode_funcs_set_decompose_compatibility_func" version="0.9.2" deprecated="1" deprecated-version="2.0.0">
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="ufuncs" transfer-ownership="none">
          <doc xml:space="preserve">a Unicode function structure</doc>
          <type name="unicode_funcs_t" c:type="hb_unicode_funcs_t*"/>
        </parameter>
        <parameter name="func" transfer-ownership="none" scope="notified" closure="2" destroy="3">
          <type name="unicode_decompose_compatibility_func_t" c:type="hb_unicode_decompose_compatibility_func_t"/>
        </parameter>
        <parameter name="user_data" transfer-ownership="none" nullable="1" allow-none="1">
          <type name="gpointer" c:type="void*"/>
        </parameter>
        <parameter name="destroy" transfer-ownership="none" scope="notified">
          <type name="destroy_func_t" c:type="hb_destroy_func_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="unicode_funcs_set_decompose_func" c:identifier="hb_unicode_funcs_set_decompose_func" version="0.9.2">
      <doc xml:space="preserve">Sets the implementation function for #hb_unicode_decompose_func_t.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="ufuncs" transfer-ownership="none">
          <doc xml:space="preserve">A Unicode-functions structure</doc>
          <type name="unicode_funcs_t" c:type="hb_unicode_funcs_t*"/>
        </parameter>
        <parameter name="func" transfer-ownership="none" scope="notified" closure="2" destroy="3">
          <doc xml:space="preserve">The callback function to assign</doc>
          <type name="unicode_decompose_func_t" c:type="hb_unicode_decompose_func_t"/>
        </parameter>
        <parameter name="user_data" transfer-ownership="none" nullable="1" allow-none="1">
          <doc xml:space="preserve">Data to pass to @func</doc>
          <type name="gpointer" c:type="void*"/>
        </parameter>
        <parameter name="destroy" transfer-ownership="none" scope="notified">
          <doc xml:space="preserve">The function to call when @user_data is not needed anymore</doc>
          <type name="destroy_func_t" c:type="hb_destroy_func_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="unicode_funcs_set_eastasian_width_func" c:identifier="hb_unicode_funcs_set_eastasian_width_func" version="0.9.2" deprecated="1" deprecated-version="2.0.0">
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="ufuncs" transfer-ownership="none">
          <doc xml:space="preserve">a Unicode function structure</doc>
          <type name="unicode_funcs_t" c:type="hb_unicode_funcs_t*"/>
        </parameter>
        <parameter name="func" transfer-ownership="none" scope="notified" closure="2" destroy="3">
          <type name="unicode_eastasian_width_func_t" c:type="hb_unicode_eastasian_width_func_t"/>
        </parameter>
        <parameter name="user_data" transfer-ownership="none" nullable="1" allow-none="1">
          <type name="gpointer" c:type="void*"/>
        </parameter>
        <parameter name="destroy" transfer-ownership="none" scope="notified">
          <type name="destroy_func_t" c:type="hb_destroy_func_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="unicode_funcs_set_general_category_func" c:identifier="hb_unicode_funcs_set_general_category_func" version="0.9.2">
      <doc xml:space="preserve">Sets the implementation function for #hb_unicode_general_category_func_t.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="ufuncs" transfer-ownership="none">
          <doc xml:space="preserve">A Unicode-functions structure</doc>
          <type name="unicode_funcs_t" c:type="hb_unicode_funcs_t*"/>
        </parameter>
        <parameter name="func" transfer-ownership="none" scope="notified" closure="2" destroy="3">
          <doc xml:space="preserve">The callback function to assign</doc>
          <type name="unicode_general_category_func_t" c:type="hb_unicode_general_category_func_t"/>
        </parameter>
        <parameter name="user_data" transfer-ownership="none" nullable="1" allow-none="1">
          <doc xml:space="preserve">Data to pass to @func</doc>
          <type name="gpointer" c:type="void*"/>
        </parameter>
        <parameter name="destroy" transfer-ownership="none" scope="notified">
          <doc xml:space="preserve">The function to call when @user_data is not needed anymore</doc>
          <type name="destroy_func_t" c:type="hb_destroy_func_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="unicode_funcs_set_mirroring_func" c:identifier="hb_unicode_funcs_set_mirroring_func" version="0.9.2">
      <doc xml:space="preserve">Sets the implementation function for #hb_unicode_mirroring_func_t.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="ufuncs" transfer-ownership="none">
          <doc xml:space="preserve">A Unicode-functions structure</doc>
          <type name="unicode_funcs_t" c:type="hb_unicode_funcs_t*"/>
        </parameter>
        <parameter name="func" transfer-ownership="none" scope="notified" closure="2" destroy="3">
          <doc xml:space="preserve">The callback function to assign</doc>
          <type name="unicode_mirroring_func_t" c:type="hb_unicode_mirroring_func_t"/>
        </parameter>
        <parameter name="user_data" transfer-ownership="none" nullable="1" allow-none="1">
          <doc xml:space="preserve">Data to pass to @func</doc>
          <type name="gpointer" c:type="void*"/>
        </parameter>
        <parameter name="destroy" transfer-ownership="none" scope="notified">
          <doc xml:space="preserve">The function to call when @user_data is not needed anymore</doc>
          <type name="destroy_func_t" c:type="hb_destroy_func_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="unicode_funcs_set_script_func" c:identifier="hb_unicode_funcs_set_script_func" version="0.9.2">
      <doc xml:space="preserve">Sets the implementation function for #hb_unicode_script_func_t.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="ufuncs" transfer-ownership="none">
          <doc xml:space="preserve">A Unicode-functions structure</doc>
          <type name="unicode_funcs_t" c:type="hb_unicode_funcs_t*"/>
        </parameter>
        <parameter name="func" transfer-ownership="none" scope="notified" closure="2" destroy="3">
          <doc xml:space="preserve">The callback function to assign</doc>
          <type name="unicode_script_func_t" c:type="hb_unicode_script_func_t"/>
        </parameter>
        <parameter name="user_data" transfer-ownership="none" nullable="1" allow-none="1">
          <doc xml:space="preserve">Data to pass to @func</doc>
          <type name="gpointer" c:type="void*"/>
        </parameter>
        <parameter name="destroy" transfer-ownership="none" scope="notified">
          <doc xml:space="preserve">The function to call when @user_data is not needed anymore</doc>
          <type name="destroy_func_t" c:type="hb_destroy_func_t"/>
        </parameter>
      </parameters>
    </function>
    <function name="unicode_funcs_set_user_data" c:identifier="hb_unicode_funcs_set_user_data" version="0.9.2" introspectable="0">
      <doc xml:space="preserve">Attaches a user-data key/data pair to the specified Unicode-functions structure.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">%true if success, %false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="ufuncs" transfer-ownership="none">
          <doc xml:space="preserve">The Unicode-functions structure</doc>
          <type name="unicode_funcs_t" c:type="hb_unicode_funcs_t*"/>
        </parameter>
        <parameter name="key" transfer-ownership="none">
          <doc xml:space="preserve">The user-data key</doc>
          <type name="user_data_key_t" c:type="hb_user_data_key_t*"/>
        </parameter>
        <parameter name="data" transfer-ownership="none" nullable="1" allow-none="1">
          <doc xml:space="preserve">A pointer to the user data</doc>
          <type name="gpointer" c:type="void*"/>
        </parameter>
        <parameter name="destroy" transfer-ownership="none">
          <doc xml:space="preserve">A callback to call when @data is not needed anymore</doc>
          <type name="destroy_func_t" c:type="hb_destroy_func_t"/>
        </parameter>
        <parameter name="replace" transfer-ownership="none">
          <doc xml:space="preserve">Whether to replace an existing data with the same key</doc>
          <type name="bool_t" c:type="hb_bool_t"/>
        </parameter>
      </parameters>
    </function>
    <record name="unicode_funcs_t" c:type="hb_unicode_funcs_t" glib:type-name="hb_unicode_funcs_t" glib:get-type="hb_gobject_unicode_funcs_get_type" c:symbol-prefix="gobject_unicode_funcs">
      <doc xml:space="preserve">Data type containing a set of virtual methods used for
accessing various Unicode character properties.

HarfBuzz provides a default function for each of the
methods in #hb_unicode_funcs_t. Client programs can implement
their own replacements for the individual Unicode functions, as
needed, and replace the default by calling the setter for a
method.</doc>
    </record>
    <function name="unicode_general_category" c:identifier="hb_unicode_general_category" version="0.9.2">
      <doc xml:space="preserve">Retrieves the General Category (gc) property
of code point @unicode.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">The #hb_unicode_general_category_t of @unicode</doc>
        <type name="unicode_general_category_t" c:type="hb_unicode_general_category_t"/>
      </return-value>
      <parameters>
        <parameter name="ufuncs" transfer-ownership="none">
          <doc xml:space="preserve">The Unicode-functions structure</doc>
          <type name="unicode_funcs_t" c:type="hb_unicode_funcs_t*"/>
        </parameter>
        <parameter name="unicode" transfer-ownership="none">
          <doc xml:space="preserve">The code point to query</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
      </parameters>
    </function>
    <callback name="unicode_general_category_func_t" c:type="hb_unicode_general_category_func_t">
      <doc xml:space="preserve">A virtual method for the #hb_unicode_funcs_t structure.

This method should retrieve the General Category property for
a specified Unicode code point.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">The #hb_unicode_general_category_t of @unicode</doc>
        <type name="unicode_general_category_t" c:type="hb_unicode_general_category_t"/>
      </return-value>
      <parameters>
        <parameter name="ufuncs" transfer-ownership="none">
          <doc xml:space="preserve">A Unicode-functions structure</doc>
          <type name="unicode_funcs_t" c:type="hb_unicode_funcs_t*"/>
        </parameter>
        <parameter name="unicode" transfer-ownership="none">
          <doc xml:space="preserve">The code point to query</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="user_data" transfer-ownership="none" nullable="1" allow-none="1" closure="2">
          <doc xml:space="preserve">User data pointer passed by the caller</doc>
          <type name="gpointer" c:type="void*"/>
        </parameter>
      </parameters>
    </callback>
    <enumeration name="unicode_general_category_t" glib:type-name="hb_unicode_general_category_t" glib:get-type="hb_gobject_unicode_general_category_get_type" c:type="hb_unicode_general_category_t">
      <doc xml:space="preserve">Data type for the "General_Category" (gc) property from
the Unicode Character Database.</doc>
      <member name="control" value="0" c:identifier="HB_UNICODE_GENERAL_CATEGORY_CONTROL" glib:nick="control" glib:name="HB_UNICODE_GENERAL_CATEGORY_CONTROL">
        <doc xml:space="preserve">[Cc]</doc>
      </member>
      <member name="format" value="1" c:identifier="HB_UNICODE_GENERAL_CATEGORY_FORMAT" glib:nick="format" glib:name="HB_UNICODE_GENERAL_CATEGORY_FORMAT">
        <doc xml:space="preserve">[Cf]</doc>
      </member>
      <member name="unassigned" value="2" c:identifier="HB_UNICODE_GENERAL_CATEGORY_UNASSIGNED" glib:nick="unassigned" glib:name="HB_UNICODE_GENERAL_CATEGORY_UNASSIGNED">
        <doc xml:space="preserve">[Cn]</doc>
      </member>
      <member name="private_use" value="3" c:identifier="HB_UNICODE_GENERAL_CATEGORY_PRIVATE_USE" glib:nick="private-use" glib:name="HB_UNICODE_GENERAL_CATEGORY_PRIVATE_USE">
        <doc xml:space="preserve">[Co]</doc>
      </member>
      <member name="surrogate" value="4" c:identifier="HB_UNICODE_GENERAL_CATEGORY_SURROGATE" glib:nick="surrogate" glib:name="HB_UNICODE_GENERAL_CATEGORY_SURROGATE">
        <doc xml:space="preserve">[Cs]</doc>
      </member>
      <member name="lowercase_letter" value="5" c:identifier="HB_UNICODE_GENERAL_CATEGORY_LOWERCASE_LETTER" glib:nick="lowercase-letter" glib:name="HB_UNICODE_GENERAL_CATEGORY_LOWERCASE_LETTER">
        <doc xml:space="preserve">[Ll]</doc>
      </member>
      <member name="modifier_letter" value="6" c:identifier="HB_UNICODE_GENERAL_CATEGORY_MODIFIER_LETTER" glib:nick="modifier-letter" glib:name="HB_UNICODE_GENERAL_CATEGORY_MODIFIER_LETTER">
        <doc xml:space="preserve">[Lm]</doc>
      </member>
      <member name="other_letter" value="7" c:identifier="HB_UNICODE_GENERAL_CATEGORY_OTHER_LETTER" glib:nick="other-letter" glib:name="HB_UNICODE_GENERAL_CATEGORY_OTHER_LETTER">
        <doc xml:space="preserve">[Lo]</doc>
      </member>
      <member name="titlecase_letter" value="8" c:identifier="HB_UNICODE_GENERAL_CATEGORY_TITLECASE_LETTER" glib:nick="titlecase-letter" glib:name="HB_UNICODE_GENERAL_CATEGORY_TITLECASE_LETTER">
        <doc xml:space="preserve">[Lt]</doc>
      </member>
      <member name="uppercase_letter" value="9" c:identifier="HB_UNICODE_GENERAL_CATEGORY_UPPERCASE_LETTER" glib:nick="uppercase-letter" glib:name="HB_UNICODE_GENERAL_CATEGORY_UPPERCASE_LETTER">
        <doc xml:space="preserve">[Lu]</doc>
      </member>
      <member name="spacing_mark" value="10" c:identifier="HB_UNICODE_GENERAL_CATEGORY_SPACING_MARK" glib:nick="spacing-mark" glib:name="HB_UNICODE_GENERAL_CATEGORY_SPACING_MARK">
        <doc xml:space="preserve">[Mc]</doc>
      </member>
      <member name="enclosing_mark" value="11" c:identifier="HB_UNICODE_GENERAL_CATEGORY_ENCLOSING_MARK" glib:nick="enclosing-mark" glib:name="HB_UNICODE_GENERAL_CATEGORY_ENCLOSING_MARK">
        <doc xml:space="preserve">[Me]</doc>
      </member>
      <member name="non_spacing_mark" value="12" c:identifier="HB_UNICODE_GENERAL_CATEGORY_NON_SPACING_MARK" glib:nick="non-spacing-mark" glib:name="HB_UNICODE_GENERAL_CATEGORY_NON_SPACING_MARK">
        <doc xml:space="preserve">[Mn]</doc>
      </member>
      <member name="decimal_number" value="13" c:identifier="HB_UNICODE_GENERAL_CATEGORY_DECIMAL_NUMBER" glib:nick="decimal-number" glib:name="HB_UNICODE_GENERAL_CATEGORY_DECIMAL_NUMBER">
        <doc xml:space="preserve">[Nd]</doc>
      </member>
      <member name="letter_number" value="14" c:identifier="HB_UNICODE_GENERAL_CATEGORY_LETTER_NUMBER" glib:nick="letter-number" glib:name="HB_UNICODE_GENERAL_CATEGORY_LETTER_NUMBER">
        <doc xml:space="preserve">[Nl]</doc>
      </member>
      <member name="other_number" value="15" c:identifier="HB_UNICODE_GENERAL_CATEGORY_OTHER_NUMBER" glib:nick="other-number" glib:name="HB_UNICODE_GENERAL_CATEGORY_OTHER_NUMBER">
        <doc xml:space="preserve">[No]</doc>
      </member>
      <member name="connect_punctuation" value="16" c:identifier="HB_UNICODE_GENERAL_CATEGORY_CONNECT_PUNCTUATION" glib:nick="connect-punctuation" glib:name="HB_UNICODE_GENERAL_CATEGORY_CONNECT_PUNCTUATION">
        <doc xml:space="preserve">[Pc]</doc>
      </member>
      <member name="dash_punctuation" value="17" c:identifier="HB_UNICODE_GENERAL_CATEGORY_DASH_PUNCTUATION" glib:nick="dash-punctuation" glib:name="HB_UNICODE_GENERAL_CATEGORY_DASH_PUNCTUATION">
        <doc xml:space="preserve">[Pd]</doc>
      </member>
      <member name="close_punctuation" value="18" c:identifier="HB_UNICODE_GENERAL_CATEGORY_CLOSE_PUNCTUATION" glib:nick="close-punctuation" glib:name="HB_UNICODE_GENERAL_CATEGORY_CLOSE_PUNCTUATION">
        <doc xml:space="preserve">[Pe]</doc>
      </member>
      <member name="final_punctuation" value="19" c:identifier="HB_UNICODE_GENERAL_CATEGORY_FINAL_PUNCTUATION" glib:nick="final-punctuation" glib:name="HB_UNICODE_GENERAL_CATEGORY_FINAL_PUNCTUATION">
        <doc xml:space="preserve">[Pf]</doc>
      </member>
      <member name="initial_punctuation" value="20" c:identifier="HB_UNICODE_GENERAL_CATEGORY_INITIAL_PUNCTUATION" glib:nick="initial-punctuation" glib:name="HB_UNICODE_GENERAL_CATEGORY_INITIAL_PUNCTUATION">
        <doc xml:space="preserve">[Pi]</doc>
      </member>
      <member name="other_punctuation" value="21" c:identifier="HB_UNICODE_GENERAL_CATEGORY_OTHER_PUNCTUATION" glib:nick="other-punctuation" glib:name="HB_UNICODE_GENERAL_CATEGORY_OTHER_PUNCTUATION">
        <doc xml:space="preserve">[Po]</doc>
      </member>
      <member name="open_punctuation" value="22" c:identifier="HB_UNICODE_GENERAL_CATEGORY_OPEN_PUNCTUATION" glib:nick="open-punctuation" glib:name="HB_UNICODE_GENERAL_CATEGORY_OPEN_PUNCTUATION">
        <doc xml:space="preserve">[Ps]</doc>
      </member>
      <member name="currency_symbol" value="23" c:identifier="HB_UNICODE_GENERAL_CATEGORY_CURRENCY_SYMBOL" glib:nick="currency-symbol" glib:name="HB_UNICODE_GENERAL_CATEGORY_CURRENCY_SYMBOL">
        <doc xml:space="preserve">[Sc]</doc>
      </member>
      <member name="modifier_symbol" value="24" c:identifier="HB_UNICODE_GENERAL_CATEGORY_MODIFIER_SYMBOL" glib:nick="modifier-symbol" glib:name="HB_UNICODE_GENERAL_CATEGORY_MODIFIER_SYMBOL">
        <doc xml:space="preserve">[Sk]</doc>
      </member>
      <member name="math_symbol" value="25" c:identifier="HB_UNICODE_GENERAL_CATEGORY_MATH_SYMBOL" glib:nick="math-symbol" glib:name="HB_UNICODE_GENERAL_CATEGORY_MATH_SYMBOL">
        <doc xml:space="preserve">[Sm]</doc>
      </member>
      <member name="other_symbol" value="26" c:identifier="HB_UNICODE_GENERAL_CATEGORY_OTHER_SYMBOL" glib:nick="other-symbol" glib:name="HB_UNICODE_GENERAL_CATEGORY_OTHER_SYMBOL">
        <doc xml:space="preserve">[So]</doc>
      </member>
      <member name="line_separator" value="27" c:identifier="HB_UNICODE_GENERAL_CATEGORY_LINE_SEPARATOR" glib:nick="line-separator" glib:name="HB_UNICODE_GENERAL_CATEGORY_LINE_SEPARATOR">
        <doc xml:space="preserve">[Zl]</doc>
      </member>
      <member name="paragraph_separator" value="28" c:identifier="HB_UNICODE_GENERAL_CATEGORY_PARAGRAPH_SEPARATOR" glib:nick="paragraph-separator" glib:name="HB_UNICODE_GENERAL_CATEGORY_PARAGRAPH_SEPARATOR">
        <doc xml:space="preserve">[Zp]</doc>
      </member>
      <member name="space_separator" value="29" c:identifier="HB_UNICODE_GENERAL_CATEGORY_SPACE_SEPARATOR" glib:nick="space-separator" glib:name="HB_UNICODE_GENERAL_CATEGORY_SPACE_SEPARATOR">
        <doc xml:space="preserve">[Zs]</doc>
      </member>
    </enumeration>
    <function name="unicode_mirroring" c:identifier="hb_unicode_mirroring" version="0.9.2">
      <doc xml:space="preserve">Retrieves the Bi-directional Mirroring Glyph code
point defined for code point @unicode.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">The #hb_codepoint_t of the Mirroring Glyph for @unicode</doc>
        <type name="codepoint_t" c:type="hb_codepoint_t"/>
      </return-value>
      <parameters>
        <parameter name="ufuncs" transfer-ownership="none">
          <doc xml:space="preserve">The Unicode-functions structure</doc>
          <type name="unicode_funcs_t" c:type="hb_unicode_funcs_t*"/>
        </parameter>
        <parameter name="unicode" transfer-ownership="none">
          <doc xml:space="preserve">The code point to query</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
      </parameters>
    </function>
    <callback name="unicode_mirroring_func_t" c:type="hb_unicode_mirroring_func_t">
      <doc xml:space="preserve">A virtual method for the #hb_unicode_funcs_t structure.

This method should retrieve the Bi-Directional Mirroring Glyph
code point for a specified Unicode code point.

&lt;note&gt;Note: If a code point does not have a specified
Bi-Directional Mirroring Glyph defined, the method should
return the original code point.&lt;/note&gt;</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">The #hb_codepoint_t of the Mirroring Glyph for @unicode</doc>
        <type name="codepoint_t" c:type="hb_codepoint_t"/>
      </return-value>
      <parameters>
        <parameter name="ufuncs" transfer-ownership="none">
          <doc xml:space="preserve">A Unicode-functions structure</doc>
          <type name="unicode_funcs_t" c:type="hb_unicode_funcs_t*"/>
        </parameter>
        <parameter name="unicode" transfer-ownership="none">
          <doc xml:space="preserve">The code point to query</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="user_data" transfer-ownership="none" nullable="1" allow-none="1" closure="2">
          <doc xml:space="preserve">User data pointer passed by the caller</doc>
          <type name="gpointer" c:type="void*"/>
        </parameter>
      </parameters>
    </callback>
    <function name="unicode_script" c:identifier="hb_unicode_script" version="0.9.2">
      <doc xml:space="preserve">Retrieves the #hb_script_t script to which code
point @unicode belongs.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">The #hb_script_t of @unicode</doc>
        <type name="script_t" c:type="hb_script_t"/>
      </return-value>
      <parameters>
        <parameter name="ufuncs" transfer-ownership="none">
          <doc xml:space="preserve">The Unicode-functions structure</doc>
          <type name="unicode_funcs_t" c:type="hb_unicode_funcs_t*"/>
        </parameter>
        <parameter name="unicode" transfer-ownership="none">
          <doc xml:space="preserve">The code point to query</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
      </parameters>
    </function>
    <callback name="unicode_script_func_t" c:type="hb_unicode_script_func_t">
      <doc xml:space="preserve">A virtual method for the #hb_unicode_funcs_t structure.

This method should retrieve the Script property for a
specified Unicode code point.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">The #hb_script_t of @unicode</doc>
        <type name="script_t" c:type="hb_script_t"/>
      </return-value>
      <parameters>
        <parameter name="ufuncs" transfer-ownership="none">
          <doc xml:space="preserve">A Unicode-functions structure</doc>
          <type name="unicode_funcs_t" c:type="hb_unicode_funcs_t*"/>
        </parameter>
        <parameter name="unicode" transfer-ownership="none">
          <doc xml:space="preserve">The code point to query</doc>
          <type name="codepoint_t" c:type="hb_codepoint_t"/>
        </parameter>
        <parameter name="user_data" transfer-ownership="none" nullable="1" allow-none="1" closure="2">
          <doc xml:space="preserve">User data pointer passed by the caller</doc>
          <type name="gpointer" c:type="void*"/>
        </parameter>
      </parameters>
    </callback>
    <record name="user_data_key_t" c:type="hb_user_data_key_t" glib:type-name="hb_user_data_key_t" glib:get-type="hb_gobject_user_data_key_get_type" c:symbol-prefix="gobject_user_data_key">
      <doc xml:space="preserve">Data structure for holding user-data keys.</doc>
      <field name="unused" readable="0" private="1">
        <type name="gchar" c:type="char"/>
      </field>
    </record>
    <union name="var_int_t" c:type="hb_var_int_t">
      <field name="u32" writable="1">
        <type name="guint32" c:type="uint32_t"/>
      </field>
      <field name="i32" writable="1">
        <type name="gint32" c:type="int32_t"/>
      </field>
      <field name="u16" writable="1">
        <array zero-terminated="0" fixed-size="2">
          <type name="guint16" c:type="uint16_t"/>
        </array>
      </field>
      <field name="i16" writable="1">
        <array zero-terminated="0" fixed-size="2">
          <type name="gint16" c:type="int16_t"/>
        </array>
      </field>
      <field name="u8" writable="1">
        <array zero-terminated="0" fixed-size="4">
          <type name="guint8" c:type="uint8_t"/>
        </array>
      </field>
      <field name="i8" writable="1">
        <array zero-terminated="0" fixed-size="4">
          <type name="gint8" c:type="int8_t"/>
        </array>
      </field>
    </union>
    <function name="variation_from_string" c:identifier="hb_variation_from_string" version="1.4.2">
      <return-value transfer-ownership="none">
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="str" transfer-ownership="none">
          <type name="utf8" c:type="const char*"/>
        </parameter>
        <parameter name="len" transfer-ownership="none">
          <type name="gint" c:type="int"/>
        </parameter>
        <parameter name="variation" transfer-ownership="none">
          <type name="variation_t" c:type="hb_variation_t*"/>
        </parameter>
      </parameters>
    </function>
    <record name="variation_t" c:type="hb_variation_t" version="1.4.2">
      <doc xml:space="preserve">Data type for holding variation data. Registered OpenType
variation-axis tags are listed at
https://docs.microsoft.com/en-us/typography/opentype/spec/dvaraxisreg</doc>
      <field name="tag" writable="1">
        <doc xml:space="preserve">The #hb_tag_t tag of the variation-axis name</doc>
        <type name="tag_t" c:type="hb_tag_t"/>
      </field>
      <field name="value" writable="1">
        <doc xml:space="preserve">The value of the variation axis</doc>
        <type name="gfloat" c:type="float"/>
      </field>
      <method name="_string" c:identifier="hb_variation_to_string" moved-to="variation_to_string" version="1.4.2">
        <return-value transfer-ownership="none">
          <type name="none" c:type="void"/>
        </return-value>
        <parameters>
          <instance-parameter name="variation" transfer-ownership="none">
            <type name="variation_t" c:type="hb_variation_t*"/>
          </instance-parameter>
          <parameter name="buf" transfer-ownership="none">
            <type name="utf8" c:type="char*"/>
          </parameter>
          <parameter name="size" transfer-ownership="none">
            <type name="guint" c:type="unsigned int"/>
          </parameter>
        </parameters>
      </method>
    </record>
    <function name="variation_to_string" c:identifier="hb_variation_to_string" version="1.4.2">
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="variation" transfer-ownership="none">
          <type name="variation_t" c:type="hb_variation_t*"/>
        </parameter>
        <parameter name="buf" transfer-ownership="none">
          <type name="utf8" c:type="char*"/>
        </parameter>
        <parameter name="size" transfer-ownership="none">
          <type name="guint" c:type="unsigned int"/>
        </parameter>
      </parameters>
    </function>
    <function name="version" c:identifier="hb_version" version="0.9.2">
      <doc xml:space="preserve">Returns library version as three integer components.</doc>
      <return-value transfer-ownership="none">
        <type name="none" c:type="void"/>
      </return-value>
      <parameters>
        <parameter name="major" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">Library major version component</doc>
          <type name="guint" c:type="unsigned int*"/>
        </parameter>
        <parameter name="minor" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">Library minor version component</doc>
          <type name="guint" c:type="unsigned int*"/>
        </parameter>
        <parameter name="micro" direction="out" caller-allocates="0" transfer-ownership="full">
          <doc xml:space="preserve">Library micro version component</doc>
          <type name="guint" c:type="unsigned int*"/>
        </parameter>
      </parameters>
    </function>
    <function name="version_atleast" c:identifier="hb_version_atleast" version="0.9.30">
      <doc xml:space="preserve">Tests the library version against a minimum value,
as three integer components.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">True if the library is equal to or greater than
the test value, false otherwise</doc>
        <type name="bool_t" c:type="hb_bool_t"/>
      </return-value>
      <parameters>
        <parameter name="major" transfer-ownership="none">
          <doc xml:space="preserve">Library major version component</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="minor" transfer-ownership="none">
          <doc xml:space="preserve">Library minor version component</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
        <parameter name="micro" transfer-ownership="none">
          <doc xml:space="preserve">Library micro version component</doc>
          <type name="guint" c:type="unsigned int"/>
        </parameter>
      </parameters>
    </function>
    <function name="version_string" c:identifier="hb_version_string" version="0.9.2">
      <doc xml:space="preserve">Returns library version as a string with three components.</doc>
      <return-value transfer-ownership="none">
        <doc xml:space="preserve">Library version string</doc>
        <type name="utf8" c:type="const char*"/>
      </return-value>
    </function>
  </namespace>
</repository>