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xgettext: Rewrite GSettings scanner in ITS

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* gettext-tools/its/gsettings.its: New file.
* gettext-tools/its/gsettings.loc: New file.
* gettext-tools/its/Makefile.am (dist_its_DATA): Add new files.
* gettext-tools/src/Makefile.am (xgettext_SOURCES): Remove x-gsettings.c.
* gettext-tools/src/x-gsettings.c: Remove.
* gettext-tools/src/x-gsettings.h (EXTENSIONS_GSETTINGS): Set language
field to NULL.
(SCANNER_GSETTINGS): Set func field to NULL.
This commit is contained in:
Daiki Ueno
2015-10-02 12:38:14 +09:00
parent 95d20e8712
commit 0daa0c191f
6 changed files with 27 additions and 398 deletions
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gettext-tools/its/Makefile.am
+1 -1
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@@ -20,4 +20,4 @@ AUTOMAKE_OPTIONS = 1.2 gnits
pkgdatadir = $(datadir)/gettext
itsdir = $(pkgdatadir)$(PACKAGE_SUFFIX)/its
dist_its_DATA = appdata.loc appdata.its
dist_its_DATA = gsettings.loc gsettings.its appdata.loc appdata.its
gettext-tools/its/gsettings.its
+14
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@@ -0,0 +1,14 @@
<?xml version="1.0"?>
<its:rules xmlns:its="http://www.w3.org/2005/11/its"
xmlns:gt="https://www.gnu.org/s/gettext/ns/its/extensions/1.0"
version="2.0">
<its:translateRule selector="/schemalist" translate="no"/>
<its:translateRule selector="//summary | //description" translate="yes"/>
<its:translateRule selector="//default[@l10n]" translate="yes"/>
<gt:contextRule selector="//default[@context]" contextPointer="@context"/>
<gt:preserveSpaceRule selector="//default" space="trim"/>
<gt:escapeRule selector="/schemalist" encode="no"/>
</its:rules>
gettext-tools/its/gsettings.loc
+6
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@@ -0,0 +1,6 @@
<?xml version="1.0"?>
<locatingRules>
<locatingRule name="GSettings" pattern="*.gschema.xml">
<documentRule localName="schemalist" target="gsettings.its"/>
</locatingRule>
</locatingRules>
gettext-tools/src/Makefile.am
+1 -1
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@@ -182,7 +182,7 @@ endif
xgettext_SOURCES += \
x-c.c x-po.c x-sh.c x-python.c x-lisp.c x-elisp.c x-librep.c x-scheme.c \
x-smalltalk.c x-java.c x-csharp.c x-awk.c x-ycp.c x-tcl.c x-perl.c x-php.c \
x-rst.c x-glade.c x-lua.c x-javascript.c x-vala.c x-gsettings.c \
x-rst.c x-glade.c x-lua.c x-javascript.c x-vala.c \
x-desktop.c
if !WOE32DLL
msgattrib_SOURCES = msgattrib.c
gettext-tools/src/x-gsettings.c
-387
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@@ -1,387 +0,0 @@
/* xgettext GSettings schema file backend.
Copyright (C) 2002-2003, 2005-2009, 2013, 2015 Free Software
Foundation, Inc.
This file was written by Daiki Ueno <ueno@gnu.org>, 2013.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
/* Specification. */
#include "x-gsettings.h"
#include <errno.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "message.h"
#include "xgettext.h"
#include "error.h"
#include "xerror.h"
#include "xvasprintf.h"
#include "basename.h"
#include "progname.h"
#include "xalloc.h"
#include "hash.h"
#include "po-charset.h"
#include "gettext.h"
#include "libexpat-compat.h"
#define _(s) gettext(s)
/* GSettings schema file is an XML based format.
The syntax is defined in glib/gio/gschema.dtd and:
https://developer.gnome.org/gio/unstable/GSettings.html */
/* ====================== Keyword set customization. ====================== */
/* If true extract all strings. */
static bool extract_all = false;
/* ============================= XML parsing. ============================= */
#if DYNLOAD_LIBEXPAT || HAVE_LIBEXPAT
/* Accumulator for the extracted messages. */
static message_list_ty *mlp;
/* Logical filename, used to label the extracted messages. */
static char *logical_file_name;
/* XML parser. */
static XML_Parser parser;
enum whitespace_type_ty
{
none,
normalize,
strip
};
typedef enum whitespace_type_ty whitespace_type_ty;
struct element_state
{
bool extract_string;
whitespace_type_ty whitespace;
char *extracted_context;
int lineno;
char *buffer;
size_t bufmax;
size_t buflen;
};
static struct element_state *stack;
static size_t stack_size;
static char *
normalize_whitespace (const char *text, whitespace_type_ty whitespace)
{
if (whitespace == none)
return xstrdup (text);
else
{
char *result, *p;
/* Strip whitespaces at the beginning/end of the text. */
result = xstrdup (text + strspn (text, " \t\n"));
for (p = result + strlen (result);
p > result && (*p == '\0' || *p == ' ' || *p == '\t' || *p == '\n');
p--)
;
if (p > result)
*++p = '\0';
/* Normalize whitespaces within the text. */
if (whitespace == normalize)
{
char *end = result + strlen (result);
for (p = result; *p != '\0';)
{
size_t len = strspn (p, " \t\n");
if (len > 0)
{
*p = ' ';
memmove (p + 1, p + len, end - (p + len));
end -= len - 1;
*end = '\0';
p++;
}
p += strcspn (p, " \t\n");
}
}
return result;
}
}
/* Ensures stack_size >= size. */
static void
ensure_stack_size (size_t size)
{
if (size > stack_size)
{
stack_size = 2 * stack_size;
if (stack_size < size)
stack_size = size;
stack =
(struct element_state *)
xrealloc (stack, stack_size * sizeof (struct element_state));
}
}
static size_t stack_depth;
/* Callback called when <element> is seen. */
static void
start_element_handler (void *userData, const char *name,
const char **attributes)
{
struct element_state *p;
/* Increase stack depth. */
stack_depth++;
ensure_stack_size (stack_depth + 1);
/* Don't extract a string for the containing element. */
stack[stack_depth - 1].extract_string = false;
p = &stack[stack_depth];
p->extract_string = extract_all;
p->extracted_context = NULL;
if (!p->extract_string)
{
bool has_translatable = false;
whitespace_type_ty whitespace = none;
const char *extracted_context = NULL;
if (strcmp (name, "summary") == 0 || strcmp (name, "description") == 0)
{
has_translatable = true;
whitespace = normalize;
}
else if (strcmp (name, "default") == 0)
{
const char *extracted_l10n = NULL;
const char **attp = attributes;
while (*attp != NULL)
{
if (strcmp (attp[0], "context") == 0)
extracted_context = attp[1];
else if (strcmp (attp[0], "l10n") == 0)
extracted_l10n = attp[1];
attp += 2;
}
if (extracted_l10n != NULL)
{
has_translatable = true;
whitespace = strip;
}
}
p->extract_string = has_translatable;
p->whitespace = whitespace;
p->extracted_context =
(has_translatable && extracted_context != NULL
? xstrdup (extracted_context)
: NULL);
}
p->lineno = XML_GetCurrentLineNumber (parser);
p->buffer = NULL;
p->bufmax = 0;
p->buflen = 0;
if (!p->extract_string)
savable_comment_reset ();
}
/* Callback called when </element> is seen. */
static void
end_element_handler (void *userData, const char *name)
{
struct element_state *p = &stack[stack_depth];
/* Actually extract string. */
if (p->extract_string)
{
/* Don't extract the empty string. */
if (p->buflen > 0)
{
lex_pos_ty pos;
if (p->buflen == p->bufmax)
p->buffer = (char *) xrealloc (p->buffer, p->buflen + 1);
p->buffer[p->buflen] = '\0';
pos.file_name = logical_file_name;
pos.line_number = p->lineno;
if (p->buffer != NULL)
{
remember_a_message (mlp, p->extracted_context,
normalize_whitespace (p->buffer,
p->whitespace),
null_context, &pos,
NULL, savable_comment);
p->extracted_context = NULL;
}
}
}
/* Free memory for this stack level. */
if (p->extracted_context != NULL)
free (p->extracted_context);
if (p->buffer != NULL)
free (p->buffer);
/* Decrease stack depth. */
stack_depth--;
savable_comment_reset ();
}
/* Callback called when some text is seen. */
static void
character_data_handler (void *userData, const char *s, int len)
{
struct element_state *p = &stack[stack_depth];
/* Accumulate character data. */
if (len > 0)
{
if (p->buflen + len > p->bufmax)
{
p->bufmax = 2 * p->bufmax;
if (p->bufmax < p->buflen + len)
p->bufmax = p->buflen + len;
p->buffer = (char *) xrealloc (p->buffer, p->bufmax);
}
memcpy (p->buffer + p->buflen, s, len);
p->buflen += len;
}
}
/* Callback called when some comment text is seen. */
static void
comment_handler (void *userData, const char *data)
{
/* Split multiline comment into lines, and remove leading and trailing
whitespace. */
char *copy = xstrdup (data);
char *p;
char *q;
for (p = copy; (q = strchr (p, '\n')) != NULL; p = q + 1)
{
while (p[0] == ' ' || p[0] == '\t')
p++;
while (q > p && (q[-1] == ' ' || q[-1] == '\t'))
q--;
*q = '\0';
savable_comment_add (p);
}
q = p + strlen (p);
while (p[0] == ' ' || p[0] == '\t')
p++;
while (q > p && (q[-1] == ' ' || q[-1] == '\t'))
q--;
*q = '\0';
savable_comment_add (p);
free (copy);
}
static void
do_extract_gsettings (FILE *fp,
const char *real_filename, const char *logical_filename,
msgdomain_list_ty *mdlp)
{
mlp = mdlp->item[0]->messages;
/* expat feeds us strings in UTF-8 encoding. */
xgettext_current_source_encoding = po_charset_utf8;
logical_file_name = xstrdup (logical_filename);
parser = XML_ParserCreate (NULL);
if (parser == NULL)
error (EXIT_FAILURE, 0, _("memory exhausted"));
XML_SetElementHandler (parser, start_element_handler, end_element_handler);
XML_SetCharacterDataHandler (parser, character_data_handler);
XML_SetCommentHandler (parser, comment_handler);
stack_depth = 0;
while (!feof (fp))
{
char buf[4096];
int count = fread (buf, 1, sizeof buf, fp);
if (count == 0)
{
if (ferror (fp))
error (EXIT_FAILURE, errno, _("\
error while reading \"%s\""), real_filename);
/* EOF reached. */
break;
}
if (XML_Parse (parser, buf, count, 0) == 0)
error (EXIT_FAILURE, 0, _("%s:%lu:%lu: %s"), logical_filename,
(unsigned long) XML_GetCurrentLineNumber (parser),
(unsigned long) XML_GetCurrentColumnNumber (parser) + 1,
XML_ErrorString (XML_GetErrorCode (parser)));
}
if (XML_Parse (parser, NULL, 0, 1) == 0)
error (EXIT_FAILURE, 0, _("%s:%lu:%lu: %s"), logical_filename,
(unsigned long) XML_GetCurrentLineNumber (parser),
(unsigned long) XML_GetCurrentColumnNumber (parser) + 1,
XML_ErrorString (XML_GetErrorCode (parser)));
XML_ParserFree (parser);
/* Close scanner. */
logical_file_name = NULL;
parser = NULL;
}
#endif
void
extract_gsettings (FILE *fp,
const char *real_filename, const char *logical_filename,
flag_context_list_table_ty *flag_table,
msgdomain_list_ty *mdlp)
{
#if DYNLOAD_LIBEXPAT || HAVE_LIBEXPAT
if (LIBEXPAT_AVAILABLE ())
do_extract_gsettings (fp, real_filename, logical_filename, mdlp);
else
#endif
{
multiline_error (xstrdup (""),
xasprintf (_("\
Language \"gsettings\" is not supported. %s relies on expat.\n\
This version was built without expat.\n"),
basename (program_name)));
exit (EXIT_FAILURE);
}
}
gettext-tools/src/x-gsettings.h
+5 -9
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@@ -28,17 +28,13 @@ extern "C" {
#endif
#define EXTENSIONS_GSETTINGS \
{ "gschema.xml", "gsettings" }, \
/* The scanner is implemented as ITS rules, in its/gsettings.its. */
#define EXTENSIONS_GSETTINGS \
{ "gschema.xml", NULL }, \
#define SCANNERS_GSETTINGS \
{ "gsettings", extract_gsettings, NULL, NULL, NULL, NULL }, \
/* Scan a gsettings XML file and add its translatable strings to mdlp. */
extern void extract_gsettings (FILE *fp, const char *real_filename,
const char *logical_filename,
flag_context_list_table_ty *flag_table,
msgdomain_list_ty *mdlp);
{ "gsettings", NULL, NULL, NULL, NULL, NULL }, \
#ifdef __cplusplus