mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-12-28 11:28:38 +00:00
34 lines
1.6 KiB
Plaintext
34 lines
1.6 KiB
Plaintext
|
|
Notes about fonts in this directory
|
|
|
|
Ahem.ttf - ACID3 test font
|
|
|
|
markXXX.ttf and markXXX.otf
|
|
|
|
These fonts are autogenerated with FontForge using the Python script mark-generate.py.
|
|
See the comments in that file for more information on how to run the script.
|
|
|
|
The markX.ttf and markX.otf fonts contain a single glyph for the X character consisting
|
|
of three stacked boxes. The mark2X.ttf and mark2X.otf files also contain just a glyph for the
|
|
character X but the glyph is similar to the space mark character. The markXmark2Y.ttf has
|
|
two glyphs, the first glyph for X and the second glyph for Y.
|
|
|
|
The markA.eot and markB.eot files are for EOT-related testing. The markA.eot file is just
|
|
a copy of markA.ttf while markB.eot is a valid EOT file embedding the contents of markB.ttf
|
|
with a null root string (so it can be used in IE without domain-specific restrictions).
|
|
|
|
|
|
PositioningTest1.ttf, PositioningTest2.ttf
|
|
|
|
These fonts were generated with FontForge and then OpenType tables added with MS VOLT.
|
|
The glyphs are from Charis SIL (see http://scripts.sil.org/CharisSILFont), released under the
|
|
Open Font License.
|
|
|
|
In both fonts, the lowercase 'o' glyph should appear raised when rendered. Font 1 uses a GPOS
|
|
positioning rule to achieve this, so it tests whether vertical deltas are being handled
|
|
correctly. Font 2 uses a GSUB substitution to replace the 'o' with a glyph that has already
|
|
been offset within the em-square, so no vertical delta is involved.
|
|
|
|
Finally, the capital 'O' character maps directly to the shifted 'o' glyph, so this can be
|
|
used for comparison without requiring any OpenType layout support.
|