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6 Commits

Author SHA1 Message Date
David Corbett 8467e12a74 [Unicode 15] Update the Arabic table 2022-08-27 19:11:19 -04:00
Behdad Esfahbod d86effa4a6 [arabic-fallback] Rename; towards supporting 3-letter ligatures 2022-06-19 10:42:06 -06:00
Khaled Hosny 7f362196c5 [arabic] Split ligature array 
Generate marks and 3-component ligatures in separate arrays. The new
arrays are unused currently.
 2022-06-19 10:42:06 -06:00
Khaled Hosny 69cbd365cc WIP: manually add data entries for PUA ligatures 
Just a test, I’m not entirely convinced we should do this.
 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 5bfb0b721c Rename s/shape-complex/shaper/g 2022-06-03 10:30:34 +01:00