Commit Graph

65 Commits

Author SHA1 Message Date
Behdad Esfahbod f67917161b [OT] Do per-ligature-component fallback mark positioning
With this in place, you can remove GDEF/GSUB/GPOS tables from Arabic
fonts and still get per-component marks positioned on
oh-yeah-fallback-formed LAM-ALEF ligatures with marks in between the LAM
and ALEF.

Now *that*'s pretty cool, if a bit anachronistic...
2012-09-06 17:22:31 -04:00
Behdad Esfahbod 525c685578 [OT] Make fallback mark positioning more robust
...with clusters spanning multiple base characters.
2012-09-06 16:02:07 -04:00
Behdad Esfahbod 9433c218b4 [OT] Simplify fallback positioning condition 2012-09-06 14:27:15 -04:00
Behdad Esfahbod 028a1706f8 Refactor common macro 2012-09-06 14:25:48 -04:00
Behdad Esfahbod 1d581ec384 [OT] Fallback-position ccc=0 Thai / Lao marks
Not perfect, but so is fallback positioning in 2012...
2012-09-01 20:06:26 -04:00
Behdad Esfahbod 3992b5ec4c Move code around 2012-09-01 19:20:41 -04:00
Behdad Esfahbod 5a7f18767a [OT] Better fallback-position Thai / Lao ccc!=0 marks 2012-08-30 22:53:29 -04:00
Behdad Esfahbod 667218a5b1 Minor 2012-08-27 17:00:44 -04:00
Behdad Esfahbod 30dd62251f Only fallback-position glyphs if we have the ccc
Previously, ccc=0 Thai / Lao marks were being
mispositioned.  Don't touch them.
2012-08-27 16:54:34 -04:00
Behdad Esfahbod e1ba62811a Center unknown marks horizontally 2012-08-27 16:28:05 -04:00
Behdad Esfahbod daf13afb08 [OT] Implement fallback mark positioning for "double" combining marks 2012-08-10 16:38:44 -04:00
Behdad Esfahbod d345313104 [OT] Fix fallback mark positioning with left-to-right text
Ouch!
2012-08-10 16:34:04 -04:00
Behdad Esfahbod 56c9e7c004 Fill out combining class resetting for fallback shaping Thai/Lao/Tibetan 2012-08-09 21:14:23 -04:00
Behdad Esfahbod 4c8ac4f47e Misc minor fixes 2012-08-08 17:44:19 -04:00
Behdad Esfahbod 9c929abdcf Minor renaming 2012-08-08 14:33:37 -04:00