AuroraMiddleware/harfbuzz
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Author SHA1 Message Date
Behdad Esfahbod
7f852b644b Fix compiler warnings 2012-05-11 23:10:31 +02:00
Behdad Esfahbod
f7e8dcfd4f [Indic] Unbreak Devanagari 
And this, concludes the HarfBuzz Massala Hackfest.

I like to specially thank Jonathan Kew for doing all the decription and
letting me get commit points.
 2012-05-11 22:01:33 +02:00
Behdad Esfahbod
6a091df9b4 [Indic] Disambiguate sub vs post vs above matras 
Bengali is at *just* above 5% now.
 2012-05-11 21:42:27 +02:00
Behdad Esfahbod
9d0d319a4a [Indic] Position Bengali Reph before matras 2012-05-11 21:36:32 +02:00
Behdad Esfahbod
f893672511 [Indic] Start categorizing Reph per script 2012-05-11 21:10:03 +02:00
Behdad Esfahbod
a913b024d8 [Indic] Apply 'init' feature for Bengali 
Error down from 20% to 7%.
 2012-05-11 20:59:26 +02:00
Behdad Esfahbod
eed903b164 [Indic] Refactor for the arrival of 'init' feature 
Yep, on Bengali now!
 2012-05-11 20:50:53 +02:00
Behdad Esfahbod
18c06e189b [Indic] Add Uniscribe bug feature for dotted circle 
For dotted-circle independent clusters, Uniscribe does no Reph shaping
for the exact sequence Ra+Halant+25CC.  Which also is the only possible
sequence with 25CC at the end.
 2012-05-11 20:02:14 +02:00
Behdad Esfahbod
5b16de97bc [Indic] Add tests for dottedcircle 2012-05-11 19:55:42 +02:00
Behdad Esfahbod
0831061efb [Indic] Refactoring 2012-05-11 19:07:58 +02:00
Behdad Esfahbod
7ea58db311 Minor 2012-05-11 18:58:57 +02:00
Behdad Esfahbod
9c09928989 [Indic] Allow multiple Consonants in Vowel/NBSP syllables 
Uniscribe allows multiple Halant+Consonant after a Vowel.
Tests:
↦       * U+0905,U+094D,U+092B,U+094D,930,94d,930
 2012-05-11 18:46:35 +02:00
Behdad Esfahbod
8c0aa486f3 [Indic] Allow two Nuktas per consonant 
Uniscribe allows up to two nuktas per consonant and one per matra. It does so
indepent of whether the consonant already has a nukta in it.  Tests:

        * U+0916,U+093C,U+0941
        * U+0959,U+093C,U+0941
        * U+0916,U+093C,U+093C,U+0941
        * U+0959,U+093C,U+093C,U+0941
        * U+0916,U+093C,U+093C,U+093C,U+0941
        * U+0959,U+093C,U+093C,U+093C,U+0941
        * 915,93c,93c,,94d,U+0916,U+093C,U+093C,U+093e,93c,93c
 2012-05-11 18:13:42 +02:00
Behdad Esfahbod
3399a06e70 [Indic] Fix U+0952 and similar classification to match Uniscribe 
See comments.
 2012-05-11 17:54:26 +02:00
Behdad Esfahbod
11aa3ef18d [Indic] Treat U+0951..U+0954 all similar to U+0952 2012-05-11 17:30:48 +02:00
Behdad Esfahbod
5f131d3226 [GSUB/GPOS/Indic] Apply GSUB/GPOS within syllables only 
This does not apply to the context matchings.

This regresses tests right now.  And we are not sure whether this is
the right thing to do for GPOS.  But we'll figure out.
 2012-05-11 17:29:40 +02:00
Behdad Esfahbod
8fd83aaf6e [GSUB/GPOS] Fix wrong buffer access in backward skippy mask matching 2012-05-11 17:18:37 +02:00
Behdad Esfahbod
ff24d1081a [Indic] Don't use syllable serial value 0 2012-05-11 17:07:08 +02:00
Behdad Esfahbod
892eb78782 [Indic] Implement Uniscribe Reph+Matra+Halant bug feature 2012-05-11 16:54:40 +02:00
Behdad Esfahbod
67ea29af49 [Indic] Add example of different Uniscribe behavior 2012-05-11 16:51:23 +02:00
Behdad Esfahbod
ebe29733d4 [Indic] Add runtime Uniscribe bug compatibility mode! 
Enable by setting envvar:

  HB_OT_INDIC_OPTIONS=uniscribe-bug-compatible

Plus, LeftMatra+Halant "feature".
 2012-05-11 16:43:12 +02:00
Behdad Esfahbod
616e692e29 [Indic] Add #define UNISCRIBE_BUG_COMPATIBLE 1 2012-05-11 16:25:02 +02:00
Behdad Esfahbod
6782bdae3b [Indic] Fix Left Matra + Halant reordering 
As can be seen in: U+092B,U+093F,U+094D
 2012-05-11 16:23:43 +02:00
Behdad Esfahbod
3c2ea9481b Minor 2012-05-11 16:23:38 +02:00
Behdad Esfahbod
c071b99f15 [Indic] Add test for Left Matra with Halant 
Uniscribe doesn't move the Halant, we do.  And do a broken job of it now.
 2012-05-11 16:22:46 +02:00
Behdad Esfahbod
203d71069c [GSUB/GPOS] Check all glyph masks when matching input 2012-05-11 16:01:44 +02:00
Behdad Esfahbod
668c6046c1 [Indic] Apply Reph mask to all POS_REPH glyphs 
Needed for upcoming changes to GSUB/GPOS mask matching.
 2012-05-11 15:34:13 +02:00
Behdad Esfahbod
4be46bade2 [Indic] Fix state machine to backtrack 2012-05-11 14:39:01 +02:00
Behdad Esfahbod
cee7187447 [Indic] Move syllable tracking from Indic to generic layer 
This is to incorporate it into GSUB/GPOS processing.
 2012-05-11 11:41:39 +02:00
Behdad Esfahbod
3bf27a9f0e [Indic] Disable conjuncts when a ZWJ happens 
Not that the code makes any difference since the presence of ZWJ itself
causes the ligature to fail to match anyway.
 2012-05-11 11:17:23 +02:00
Behdad Esfahbod
c6d904d67d [Indic] Fix bitops typo! 
Another 1000 down!
 2012-05-11 11:07:40 +02:00
Behdad Esfahbod
55fe2cf79b Make APPLY debug output print current index and codepoint 
Yay!
 2012-05-11 03:56:33 +02:00
Behdad Esfahbod
7bd2b04fea Minor 2012-05-11 03:40:58 +02:00
Behdad Esfahbod
cf26510dbb Some more... 
Done.  I promise.
 2012-05-11 03:35:08 +02:00
Behdad Esfahbod
9659523ca3 More beauty in debug output! 2012-05-11 03:33:36 +02:00
Behdad Esfahbod
cf26e88a5a Finish off debug output beautification 2012-05-11 03:16:57 +02:00
Behdad Esfahbod
d7bba01a35 Only print class name in debug output if there's one available 2012-05-11 02:46:26 +02:00
Behdad Esfahbod
85f73fa8da Only printout class name in tracing, if one is available 
Makes debug output much more pleasant.
 2012-05-11 02:40:42 +02:00
Behdad Esfahbod
98619ce4fa Minor 2012-05-11 02:34:06 +02:00
Behdad Esfahbod
acea183e98 Add return annotation for APPLY 2012-05-11 02:33:11 +02:00
Behdad Esfahbod
5ccfe8e215 /Minor/ 2012-05-11 02:19:41 +02:00
Behdad Esfahbod
0ab8c86217 Annotate SANITIZE return values 
More to come, for APPLY, CLOSURE, etc.
 2012-05-11 02:11:52 +02:00
Behdad Esfahbod
829e814ff3 Minor 2012-05-11 00:52:16 +02:00
Behdad Esfahbod
6eec6f406d Code reshuffling 2012-05-11 00:50:38 +02:00
Behdad Esfahbod
1e08830b4f Beautify debug output 2012-05-11 00:43:57 +02:00
Behdad Esfahbod
6f45538017 More massaging trace messaging 2012-05-10 23:24:43 +02:00
Behdad Esfahbod
b5fa37cb69 Minor 2012-05-10 23:09:48 +02:00
Behdad Esfahbod
208109703c Better trace message support infrastructure 
We have varargs in the trace interface now.  To be used soon...
 2012-05-10 23:06:58 +02:00
Behdad Esfahbod
02b2922fbf [Indic] Towards better Reph positioning 
Fixed for Deva cases with two full-form consonants.  Failures **way** down.
Not much left to go :-).
 2012-05-10 21:44:50 +02:00
Behdad Esfahbod
74e54cf446 [Indic] Add Ra back for scripts without Reph 
We now check that the 'rphp' table exists before forming Reph, so
we don't need to comment out Ra for those scripts.
 2012-05-10 21:22:58 +02:00