0831061efb
[Indic] Refactoring
2012-05-11 19:07:58 +02:00
7ea58db311
Minor
2012-05-11 18:58:57 +02:00
9c09928989
[Indic] Allow multiple Consonants in Vowel/NBSP syllables
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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
8c0aa486f3
[Indic] Allow two Nuktas per consonant
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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
3399a06e70
[Indic] Fix U+0952 and similar classification to match Uniscribe
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See comments.
2012-05-11 17:54:26 +02:00
11aa3ef18d
[Indic] Treat U+0951..U+0954 all similar to U+0952
2012-05-11 17:30:48 +02:00
5f131d3226
[GSUB/GPOS/Indic] Apply GSUB/GPOS within syllables only
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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
8fd83aaf6e
[GSUB/GPOS] Fix wrong buffer access in backward skippy mask matching
2012-05-11 17:18:37 +02:00
ff24d1081a
[Indic] Don't use syllable serial value 0
2012-05-11 17:07:08 +02:00
892eb78782
[Indic] Implement Uniscribe Reph+Matra+Halant bug feature
2012-05-11 16:54:40 +02:00
67ea29af49
[Indic] Add example of different Uniscribe behavior
2012-05-11 16:51:23 +02:00
ebe29733d4
[Indic] Add runtime Uniscribe bug compatibility mode!
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Enable by setting envvar:
HB_OT_INDIC_OPTIONS=uniscribe-bug-compatible
Plus, LeftMatra+Halant "feature".
2012-05-11 16:43:12 +02:00
616e692e29
[Indic] Add #define UNISCRIBE_BUG_COMPATIBLE 1
2012-05-11 16:25:02 +02:00
6782bdae3b
[Indic] Fix Left Matra + Halant reordering
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As can be seen in: U+092B,U+093F,U+094D
2012-05-11 16:23:43 +02:00
3c2ea9481b
Minor
2012-05-11 16:23:38 +02:00
c071b99f15
[Indic] Add test for Left Matra with Halant
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Uniscribe doesn't move the Halant, we do. And do a broken job of it now.
2012-05-11 16:22:46 +02:00
203d71069c
[GSUB/GPOS] Check all glyph masks when matching input
2012-05-11 16:01:44 +02:00
668c6046c1
[Indic] Apply Reph mask to all POS_REPH glyphs
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Needed for upcoming changes to GSUB/GPOS mask matching.
2012-05-11 15:34:13 +02:00
4be46bade2
[Indic] Fix state machine to backtrack
2012-05-11 14:39:01 +02:00
cee7187447
[Indic] Move syllable tracking from Indic to generic layer
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This is to incorporate it into GSUB/GPOS processing.
2012-05-11 11:41:39 +02:00
3bf27a9f0e
[Indic] Disable conjuncts when a ZWJ happens
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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
c6d904d67d
[Indic] Fix bitops typo!
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Another 1000 down!
2012-05-11 11:07:40 +02:00
55fe2cf79b
Make APPLY debug output print current index and codepoint
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Yay!
2012-05-11 03:56:33 +02:00
7bd2b04fea
Minor
2012-05-11 03:40:58 +02:00
cf26510dbb
Some more...
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Done. I promise.
2012-05-11 03:35:08 +02:00
9659523ca3
More beauty in debug output!
2012-05-11 03:33:36 +02:00
cf26e88a5a
Finish off debug output beautification
2012-05-11 03:16:57 +02:00
d7bba01a35
Only print class name in debug output if there's one available
2012-05-11 02:46:26 +02:00
85f73fa8da
Only printout class name in tracing, if one is available
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Makes debug output much more pleasant.
2012-05-11 02:40:42 +02:00
98619ce4fa
Minor
2012-05-11 02:34:06 +02:00
acea183e98
Add return annotation for APPLY
2012-05-11 02:33:11 +02:00
5ccfe8e215
/Minor/
2012-05-11 02:19:41 +02:00
0ab8c86217
Annotate SANITIZE return values
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More to come, for APPLY, CLOSURE, etc.
2012-05-11 02:11:52 +02:00
829e814ff3
Minor
2012-05-11 00:52:16 +02:00
6eec6f406d
Code reshuffling
2012-05-11 00:50:38 +02:00
1e08830b4f
Beautify debug output
2012-05-11 00:43:57 +02:00
6f45538017
More massaging trace messaging
2012-05-10 23:24:43 +02:00
b5fa37cb69
Minor
2012-05-10 23:09:48 +02:00
208109703c
Better trace message support infrastructure
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We have varargs in the trace interface now. To be used soon...
2012-05-10 23:06:58 +02:00
02b2922fbf
[Indic] Towards better Reph positioning
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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
74e54cf446
[Indic] Add Ra back for scripts without Reph
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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
2b70df5cc0
[Indic] Add note re Uniscribe clusters
2012-05-10 18:38:22 +02:00
21d2803133
[Indic] Do clustering like Uniscribe does
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Hindi Wikipedia failures down to 6639 (0.938381%)!
2012-05-10 18:34:34 +02:00
b20c9ebaf5
[Indic] Add test for matra group
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The spec says: "[{M}+[N]+[H]]", and that's what Uniscribe implements.
We instead do: "{M+[N]+[H]}", which means we allow Nukta and Halant
after all Matras, not just the last one. It makes more sense.
2012-05-10 18:31:17 +02:00
8df5636968
[Indic] Reorder Reph to before the Halant after Matras
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Uniscribe doesn't do it, but we want to do as it gives the Reph the
opportunity to interact with the Matras. Test with mangal for example.
Sequence: <0930,094d,0915,094b,094d>
In test suite already.
2012-05-10 15:41:04 +02:00
daf3234bdc
[Indic] Don't clear the mask for Reph
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This was removing the mandatory global 1 bit in the mask and hence
disabling GPOS for Reph!
2012-05-10 15:28:27 +02:00
7708ee23cb
[Indic] Improve Left Matra repositioning
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Move its dependents too.
2012-05-10 14:48:25 +02:00
61a58e26a5
[Indic] Add tricky reordering test cases
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In the case of Consonant,LeftMatra,Halant, Uniscribe leaves the Halant
where it is, but we want to move it with the Matra as that makes more
logical sense.
2012-05-10 14:43:53 +02:00
dbb105883c
[Indic] Do Reph repositioning in final reordering like the spec says
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This introduced a failure, which we tracked down to a test case like this:
U+092E,U+094B,U+094D,U+0930
The final character is a Ra that should be put in a syllable of it's
own. And we do. But it will interact with the Halant before it. So
now we finally are convinced that we have to limit features to syllable
boundaries. That's coming after lunch!
2012-05-10 13:45:52 +02:00
4705a70269
Minor
2012-05-10 13:09:08 +02:00
Behdad Esfahbod