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317 Commits

Author SHA1 Message Date
Behdad Esfahbod 743807a3ce [Indic] Apply Indic features 
Find the base consonant and apply basic Indic features accordingly.
Nothing complete, but does something for now.  Specifically:
no Ra handling right now, and no ZWJ/ZWNJ.

Number of failing shape-complex tests goes from 174 down to 125.

Next: reorder matras.
 2011-07-29 16:46:09 -04:00
Behdad Esfahbod 9f9bcceca6 Register buffer vars in Indic shaper 2011-07-28 17:07:50 -04:00
Behdad Esfahbod b65c06025d Formalize buffer var allocations 2011-07-28 16:49:29 -04:00
Behdad Esfahbod 02cdf743c2 Add prefer_decomposed() complex-shaper callback 
This allows the Indic shaper to request decomposed characters.  This will
handle split matra for free.  Other shapers prefer precomposed
characters.
 2011-07-21 12:23:12 -04:00
Behdad Esfahbod a54a5505a3 Minor 2011-07-20 16:42:10 -04:00
Behdad Esfahbod f6fd3780e1 Let shapers decide when to apply ccmp and locl 
Instead of always applying those two features before the complex shaper,
let the complex shaper decide whether they should be applied first.

Also add stub for Indic's final_reordering().
 2011-07-08 00:22:40 -04:00
Behdad Esfahbod 76f76812ac Shuffle code around, remove shape_plan from complex shapers 2011-07-07 22:25:25 -04:00
Behdad Esfahbod d69d5ceaa0 [Indic] Well, at least finding syllables works now :) 
Still not much there.
 2011-07-04 12:56:38 -04:00
Behdad Esfahbod 4ec30aec30 [Indic] Optimize Indic table storage 2011-06-28 14:13:38 -04:00
Behdad Esfahbod 8fdba506f0 [Indic] Define indic_position_t 2011-06-24 20:45:55 -04:00
Behdad Esfahbod 65988a145b [Indic] Add a table of consonant positions 
Copied form HarfBuzz.old Indic data.  These are below and post
consonants.  This is temporary.  Read the comment in the patch.
 2011-06-24 19:05:52 -04:00
Behdad Esfahbod c7fe56a1d5 [Indic] Some of the basic features are global; Mark them so 2011-06-24 19:05:34 -04:00
Behdad Esfahbod 867361c3ad [indic] Add syllable recognition state machine 
Using an incredible tool called Ragel.
 2011-06-17 18:35:46 -04:00
Behdad Esfahbod 422e08dbb8 Better categorize Indic character classes 
Matches OT types now.
 2011-06-15 17:22:48 -04:00
Behdad Esfahbod b9452bfc16 Fix compiler warnings with -pedantic 2011-06-14 14:47:07 -04:00
Behdad Esfahbod 20503ccd57 More Indic data shuffling 2011-06-07 17:02:48 -04:00
Behdad Esfahbod b9ddbd5593 [Indic] Start an Indic shaper 
Nothing functional in there yet.

So far, we're parsing IndicSyllabicCategory.txt and IndicMatraCategory.txt
fils from Unicode Character Database and store them in an array to be used
by the shaper.  Also hooked up the shaper, but it does not do anything
right now.
 2011-06-02 17:43:12 -04:00