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6 Commits

Author SHA1 Message Date
Behdad Esfahbod 1db6fddb24 [arabic-fallback.hh] Hook up 3-letter ligatures 2022-06-19 10:42:06 -06:00
Behdad Esfahbod 8978a18f31 [arabick-fallback] Apply mark ligatures 2022-06-19 10:42:06 -06:00
Khaled Hosny dfc5e5a27d [test] Skip glyph positions for test failing on CI 
We are not interested in glyph positioning for this test, and the
FreeType version on some CI machines is giving some different glyph
advances here.
 2022-06-19 10:42:06 -06:00
Khaled Hosny 189e8c326e [ft] Remap legacy Arabic PUA codepoints 
Similar to what ot font finctions does, to support Support legacy
pre-OpenType Windows 3.1-era fonts.
 2022-06-19 10:42:05 -06:00
Khaled Hosny c3f590bb1e [arabic] Support legacy PUA shaping 
Support legacy pre-OpenType Windows 3.1-era fonts, by remapping PUA code
points in cmap table and letting our fallback shaper build the GSUB
table.

Uniscribe applies also mset-like substitution, but our fallback mark
positioning gives better results, so this is not implemented.
 2022-06-19 10:42:05 -06:00
Behdad Esfahbod e0d7060f80 [test] Rename shaping/ to shape/ 2021-08-11 18:49:59 -06:00