552d19b7a1
[Indic] Treat Register Shifters like Nukta
...
Really this time.
Fixes another 18 Khmer tests.
2012-07-18 16:02:33 -04:00
e8cd81f76d
[Indic] Minor
2012-07-18 16:00:20 -04:00
69f26bf39c
[Indic] Fix Matra reordering when base is at end of syllable
...
For example: U+915,U+200c,U+93f
Fixes last Tamil failure!
2012-07-18 15:47:51 -04:00
075d671f10
[Indic] Fix out-of-bounds array access
2012-07-18 15:41:53 -04:00
14dbdd9e39
[Indic] Unbreak Tamil
...
Tamil has only about 150 failures now!
2012-07-18 13:13:03 -04:00
db8981f1e0
[Indic] Position Khmer Robat
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It's a visual Repha.
Still not positioning logical Repha as occurs in Malayalam.
Another 200 Khmer failures fixed. 547 to go. That's better than
Devanagari!
2012-07-17 23:42:04 -04:00
25bc489498
[Indic] Better categorize Register Shifters and Khmer Various signs
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Down another 500 or so Khmer failures!
2012-07-17 17:53:03 -04:00
25e302da9a
[Indic] Minor
2012-07-17 14:25:14 -04:00
5d32690a34
[Indic] For scripts without Half forms, always choose first consonant as base
...
In such scripts (ie. Khmer), a ZWJ/ZWNJ shouldn't stop the search for
base. So, instead just choose the first consonant as base directly.
Test sequence:
U+1798,200c,U+17C9,U+17D2,U+179B,U+17C1,U+17C7
2012-07-17 14:23:28 -04:00
0201e0a464
[Indic] Apply 'cfar' for Khmer
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Mark stuff after a pre-base reordering Ro 'cfar'. Used in Khmer.
This allows distinguishing the following cases with MS Khmer fonts:
U+1784,U+17D2,U+179A,U+17D2,U+1782
U+1784,U+17D2,U+1782,U+17D2,U+179A
2012-07-17 13:56:24 -04:00
55f70ebfb9
[Indic] Position final subjoined consonants (and vowels) after matras
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In Khmer, a final subjoined consonant or independent vowel can occur
after matras. This final subjoined thing should NOT be reordered to
before the matra even though it's subjoined.
Fixes another 1k of the Khmer failures. Not much left really.
2012-07-17 12:50:13 -04:00
c50ed71e9a
[Indic] Recategorize Khmer coeng sign as a separate category OT_Coeng
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Amend the syllable structure to allow a final subscripted consonant
(Coeng+C) and a final subscripted independent vowel (Coeng+V).
Fixes another 2k of Khmer failures.
2012-07-17 11:54:28 -04:00
deb521dee4
[Indic] Add a separate Coeng class
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No characters recategorized yet. No semantic change.
2012-07-17 11:37:32 -04:00
74ccc6a132
[Indic] Move Halant with after-base consonants
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Normally, we attach the Halant to the previous character and move it
with it. For after-base consonants however, the Halant "belongs" to the
consonant after, so attach it so.
This fixes Bengali sequences involving post-base consonant Ya, which
should ligate with the Halant to form Ya Phala, but previously a
reordered matras was blocking the ligation.
2012-07-17 11:16:19 -04:00
d5c4edcdd6
[Indic] Apply presentation-forms features all at once
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Seems like this is what Uniscribe is doing, and does not break any fonts
we tested (with Devanagari, Malayalam, Khmer, and Bengali), while fixing
some Ra Phala sequences for Bengali with Vrinda. Fixes another 2% of
Bengali failures (a couple more to go).
2012-07-17 10:40:59 -04:00
af92b4cc90
[Indic] Disable 'kern' in Uniscribe bug compatibility mode
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Uniscribe does not apply 'kern' in the Indic module. Some of the Khmer
fonts they ship have small adjustments in the 'kern' table. Disable
'kern' in the Indic module under Uniscribe bug compatibility mode.
Fixes some 10% of the Khmer failures. Remains under 3% (excluding
dotted-circle ones).
2012-07-16 20:31:24 -04:00
d96838ef95
Allow complex shapers overriding common features
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In a new callback... Currently unused by all complex shapers.
2012-07-16 20:26:57 -04:00
df50b84740
[Indic] Categorize other Khmer marks
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Mark them the same as the Register Shifters for now. Need to rename
that category to something more sensible after all is settled.
Fixes another percent of Khmer failures. Down to under 3%!
2012-07-16 20:14:50 -04:00
8e7b5882fb
[Indic] Recognize pre-base reordering Ra anywhere in the syllable
...
We were doing that only immediately after base.
Fixes another percent in the Khmer failures. About three more to go...
2012-07-16 17:04:46 -04:00
7d09c98a1f
[Indic] Recognizer Register Shifter marks
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Fixes another 6% of the Khmer failures.
2012-07-16 16:45:22 -04:00
78818124b1
[Indic] Reoder pre-base reordering Ra
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Brings down Malayalam failures from 14% down to 3%.
2012-07-16 15:49:08 -04:00
1a1dbe9a27
[Indic] Rename
2012-07-16 15:41:33 -04:00
46e645ec4b
[Indic] Start implementing pre-base reordering
2012-07-16 15:30:05 -04:00
921ce5b17d
[Indic] Rename
...
No semantic change.
2012-07-16 15:26:56 -04:00
b504e060f0
[Indic] Implement After-Main Reph positioning
...
Almost...
2012-07-16 15:21:12 -04:00
17d7de91d7
[Indic] Apply 'pref' to pre-base reodering Ra
...
No reordering yet.
2012-07-16 15:20:15 -04:00
362d3db8d3
[Indic] Minor
...
Should not be any semantic change. In preparation for implementing
pre-base reordering Ra.
2012-07-16 15:15:28 -04:00
70fe77bb9a
Minor
2012-07-16 14:52:18 -04:00
2f903215c5
Minor
2012-07-16 13:54:43 -04:00
a3e04bee2c
[Indic] Reorder virama only for old Indic spec
2012-07-16 13:47:19 -04:00
0de771b72d
[Indic] Categorize Khmer consonants
2012-07-16 13:39:36 -04:00
29f106d7fb
[Indic] Apply Above Forms
2012-07-16 12:05:35 -04:00
a2b471df82
Remove static initializers from indic
2012-06-05 15:17:44 -04:00
9fc7a11469
Remove comma at the end of enum
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As reported by Jonathan Kew on the list.
2012-06-04 08:28:19 -04:00
27aba594c9
Minor
2012-05-24 15:00:01 -04:00
1d6846db9e
[Indic] Apply vatu feature after cjct
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Testing with old Deva spec this reduces failures.
Test sequence: U+0915,U+094D,U+0930.
2012-05-13 18:09:29 +02:00
617f4ac46f
Refactor
2012-05-13 16:48:03 +02:00
5e4e21fce4
Revert "[Indic] Refactoring"
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This reverts commit 0831061efb
2012-05-13 16:46:08 +02:00
3f18236a03
Fix more warnings
2012-05-13 16:20:10 +02:00
9f377ed321
Fix more unused-var warnings
2012-05-13 16:13:44 +02:00
eace47b173
Minor
2012-05-13 15:54:43 +02:00
737dded2e0
Fix compiler warnings
2012-05-12 15:40:11 +02:00
7f852b644b
Fix compiler warnings
2012-05-11 23:10:31 +02:00
6a091df9b4
[Indic] Disambiguate sub vs post vs above matras
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Bengali is at *just* above 5% now.
2012-05-11 21:42:27 +02:00
9d0d319a4a
[Indic] Position Bengali Reph before matras
2012-05-11 21:36:32 +02:00
f893672511
[Indic] Start categorizing Reph per script
2012-05-11 21:10:03 +02:00
a913b024d8
[Indic] Apply 'init' feature for Bengali
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Error down from 20% to 7%.
2012-05-11 20:59:26 +02:00
eed903b164
[Indic] Refactor for the arrival of 'init' feature
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Yep, on Bengali now!
2012-05-11 20:50:53 +02:00
18c06e189b
[Indic] Add Uniscribe bug feature for dotted circle
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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
0831061efb
[Indic] Refactoring
2012-05-11 19:07:58 +02:00
7ea58db311
Minor
2012-05-11 18:58:57 +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
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
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
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
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
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
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
dbb105883c
[Indic] Do Reph repositioning in final reordering like the spec says
...
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
4ac9e98d9d
[Indic] Reorder left matras to be closer to base
2012-05-10 12:53:53 +02:00
1a1fa8c655
[Indic] Treat the standalone cluster case reusing the consonant logic
2012-05-10 12:21:30 +02:00
190eb31a16
[Indic] Minor
2012-05-10 12:21:30 +02:00
c5306b6861
[Indic] Handle Vowel syllables
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Reusing the consonant logic!
2012-05-10 12:21:30 +02:00
6d8e0cb74c
[Indic] Simplify Reph logic
2012-05-10 11:41:51 +02:00
3d25079f8d
[Indic] Don't form Reph is Ra is the only consonant in the syllable
2012-05-10 11:37:42 +02:00
b99d63ae11
[Indic] Increase max syllable length
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20 was way too low, one could hit a syllable with 7ish consonants with it.
2012-05-10 11:32:52 +02:00
a391ff50b9
[Indic] Adjust base after sorting
2012-05-10 11:31:20 +02:00
d3637edb24
[Indic] Don't return for long syllables. Just not sort.
2012-05-10 10:51:38 +02:00
ef24cc8c8e
[Indic] Towards multi-cluster syllables and final reordering
2012-05-09 18:10:20 +02:00
92332e5116
Minor
2012-05-09 17:40:00 +02:00
dbccf87eef
[Indic] Make room for more reordering positions
2012-05-09 17:24:39 +02:00
d4480ace7f
[Indic] Improve matra vs consonant ordering
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Another 1.5% down.
2012-05-09 15:59:47 +02:00
33c92e7695
[Indic] Categorize Anudatta
2012-05-09 15:41:51 +02:00
19d984edaa
[Indic] Make sure Reph jumps over all matras to the right
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Another 12 thousand failures gone! (78 to go)
2012-05-09 15:21:13 +02:00
9034641333
[Indic] Keep Vedic signs at the right too
2012-05-09 15:04:58 +02:00
d1deaa2f5b
Replace zerowidth invisible chars with a zero-advance space glyph
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Like Uniscribe does.
2012-05-09 15:04:13 +02:00
49e5da1591
[indic] Keep the syllable modifier marks to the right
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Shaping failures on Hindi Wikipedia go down from 25% to 14%!
2012-05-09 13:23:27 +02:00
76b3409de6
[indic] Better Reph matching
2012-05-09 11:52:32 +02:00
df6d45c693
Minor
2012-05-09 11:38:31 +02:00
412b91889d
[indic] Apply Indic features in order
2012-05-09 11:07:18 +02:00
1ac075b227
[indic] Apply rakaar forms
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Fixes 10% of the failures against all of Hindi Wikipedia!
2012-05-09 11:06:47 +02:00
3ed4634ec3
Add Indic inspection tool
2012-04-19 22:35:01 -04:00
a06411ecf9
Minor matra renumbering
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Should have no visible effect.
2012-04-19 22:28:25 -04:00
c65662b71e
Fix left-matra positioning in Indic
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Fixes 200 failures out of previous 4290 cases in the OO.o Indic
dictionary (of ~16000 entries).
2012-04-12 09:31:55 -04:00
acd88e659f
In Arabic fallback shaping, check that the font has glyph for new char
2012-04-10 18:02:20 -04:00
11138ccff7
Add normalize mode
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In preparation for Hangul shaper.
2012-04-05 17:25:19 -04:00
e8eedf2687
Avoid enum trailing commas
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Based on patch from Jonathan Kew.
2012-01-16 16:39:40 -05:00
0a965eee88
Minor
2011-09-19 16:53:47 -04:00
Behdad Esfahbod