Commit Graph

71 Commits

Author SHA1 Message Date
Behdad Esfahbod 2b70df5cc0 [Indic] Add note re Uniscribe clusters 2012-05-10 18:38:22 +02:00
Behdad Esfahbod 21d2803133 [Indic] Do clustering like Uniscribe does
Hindi Wikipedia failures down to 6639 (0.938381%)!
2012-05-10 18:34:34 +02:00
Behdad Esfahbod 8df5636968 [Indic] Reorder Reph to before the Halant after Matras
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
Behdad Esfahbod daf3234bdc [Indic] Don't clear the mask for Reph
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
Behdad Esfahbod 7708ee23cb [Indic] Improve Left Matra repositioning
Move its dependents too.
2012-05-10 14:48:25 +02:00
Behdad Esfahbod 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
Behdad Esfahbod 4705a70269 Minor 2012-05-10 13:09:08 +02:00
Behdad Esfahbod 4ac9e98d9d [Indic] Reorder left matras to be closer to base 2012-05-10 12:53:53 +02:00
Behdad Esfahbod 1a1fa8c655 [Indic] Treat the standalone cluster case reusing the consonant logic 2012-05-10 12:21:30 +02:00
Behdad Esfahbod 190eb31a16 [Indic] Minor 2012-05-10 12:21:30 +02:00
Behdad Esfahbod c5306b6861 [Indic] Handle Vowel syllables
Reusing the consonant logic!
2012-05-10 12:21:30 +02:00
Behdad Esfahbod 6d8e0cb74c [Indic] Simplify Reph logic 2012-05-10 11:41:51 +02:00
Behdad Esfahbod 3d25079f8d [Indic] Don't form Reph is Ra is the only consonant in the syllable 2012-05-10 11:37:42 +02:00
Behdad Esfahbod b99d63ae11 [Indic] Increase max syllable length
20 was way too low, one could hit a syllable with 7ish consonants with it.
2012-05-10 11:32:52 +02:00
Behdad Esfahbod a391ff50b9 [Indic] Adjust base after sorting 2012-05-10 11:31:20 +02:00
Behdad Esfahbod d3637edb24 [Indic] Don't return for long syllables. Just not sort. 2012-05-10 10:51:38 +02:00
Behdad Esfahbod ef24cc8c8e [Indic] Towards multi-cluster syllables and final reordering 2012-05-09 18:10:20 +02:00
Behdad Esfahbod 92332e5116 Minor 2012-05-09 17:40:00 +02:00
Behdad Esfahbod dbccf87eef [Indic] Make room for more reordering positions 2012-05-09 17:24:39 +02:00
Behdad Esfahbod d4480ace7f [Indic] Improve matra vs consonant ordering
Another 1.5% down.
2012-05-09 15:59:47 +02:00
Behdad Esfahbod 33c92e7695 [Indic] Categorize Anudatta 2012-05-09 15:41:51 +02:00
Behdad Esfahbod 19d984edaa [Indic] Make sure Reph jumps over all matras to the right
Another 12 thousand failures gone! (78 to go)
2012-05-09 15:21:13 +02:00
Behdad Esfahbod 9034641333 [Indic] Keep Vedic signs at the right too 2012-05-09 15:04:58 +02:00
Behdad Esfahbod d1deaa2f5b Replace zerowidth invisible chars with a zero-advance space glyph
Like Uniscribe does.
2012-05-09 15:04:13 +02:00
Behdad Esfahbod 49e5da1591 [indic] Keep the syllable modifier marks to the right
Shaping failures on Hindi Wikipedia go down from 25% to 14%!
2012-05-09 13:23:27 +02:00
Behdad Esfahbod 76b3409de6 [indic] Better Reph matching 2012-05-09 11:52:32 +02:00
Behdad Esfahbod df6d45c693 Minor 2012-05-09 11:38:31 +02:00
Behdad Esfahbod 412b91889d [indic] Apply Indic features in order 2012-05-09 11:07:18 +02:00
Behdad Esfahbod 1ac075b227 [indic] Apply rakaar forms
Fixes 10% of the failures against all of Hindi Wikipedia!
2012-05-09 11:06:47 +02:00
Behdad Esfahbod 3ed4634ec3 Add Indic inspection tool 2012-04-19 22:35:01 -04:00
Behdad Esfahbod a06411ecf9 Minor matra renumbering
Should have no visible effect.
2012-04-19 22:28:25 -04:00
Behdad Esfahbod c65662b71e Fix left-matra positioning in Indic
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
Behdad Esfahbod acd88e659f In Arabic fallback shaping, check that the font has glyph for new char 2012-04-10 18:02:20 -04:00
Behdad Esfahbod 11138ccff7 Add normalize mode
In preparation for Hangul shaper.
2012-04-05 17:25:19 -04:00
Behdad Esfahbod e8eedf2687 Avoid enum trailing commas
Based on patch from Jonathan Kew.
2012-01-16 16:39:40 -05:00
Behdad Esfahbod 0a965eee88 Minor 2011-09-19 16:53:47 -04:00
Behdad Esfahbod c605bbbb6d Remove C++ guards from source files
Where causing issues for people with MSVC.
2011-08-04 20:00:53 -04:00
Behdad Esfahbod a91c58bf98 [Indic] Disable CJCT-disabling logic
Read comment.
2011-08-01 16:30:11 -04:00
Behdad Esfahbod 5e72071062 [Indic] Stop looking for base upon seeing joiners
Not sure where this is documented, but I remember this being the desired
behavior.

test-shape-complex failures are down from 48 to 46.  Meh.
2011-07-31 17:52:44 -04:00
Behdad Esfahbod 281683995a Cosmetic 2011-07-31 16:00:35 -04:00
Behdad Esfahbod 6b37bc8084 [Indic] Fix ZWJ/ZWNJ application
Not quite working just yet.  False alarm re 10 failures.  It was
crashing.  Ouch!  Back to 48 failures.
2011-07-31 15:57:00 -04:00
Behdad Esfahbod e7be057024 [Indic] Add Final Reordering rules into comments
Not applied yet.
2011-07-31 15:22:46 -04:00
Behdad Esfahbod cfd4382ec1 [Indic] Handle Reph when determining base consonant 2011-07-31 15:08:40 -04:00
Behdad Esfahbod 97158392a5 [Indic] Ra is a consonant too 2011-07-31 15:01:28 -04:00
Behdad Esfahbod 0d8f8a177c [Indic] Fix reph inhibition logic 2011-07-31 14:57:59 -04:00
Behdad Esfahbod 9da0487cd4 [Indic] Support ZWJ/ZWNJ
Brings test-shape-complex failures down from 52 to 10!

I hereby declare harfbuzz-ng supporting Indic!
2011-07-31 13:46:44 -04:00
Behdad Esfahbod 9ee27a928a [Indic] Suppress reph formation upon joiners 2011-07-31 11:10:14 -04:00
Behdad Esfahbod 8354e004e5 Un-Ra U+09F1. According to the test suite this is correct.
But I'm not sure...  Down from 54 failures to 52.
2011-07-31 02:24:51 -04:00
Behdad Esfahbod ba7e85c104 Cosmetic 2011-07-30 21:11:53 -04:00
Behdad Esfahbod f5bc2725cb [Indic] For old-style Indic tables, move Halant around
In old-style Indic OT standards, the post-base Halants are moved after
their base.  Emulate that by moving first post-base Halant to
post-last-consonant.

Brings test-shape-complex failures down from 88 to 54.  Getting there!
2011-07-30 21:08:10 -04:00