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[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
This commit is contained in:
Behdad Esfahbod 2012-05-11 18:13:42 +02:00
parent 3399a06e70
commit 8c0aa486f3
1 changed files with 4 additions and 3 deletions
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7
src/hb-ot-shape-complex-indic-machine.rl
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@ -55,14 +55,15 @@ A = 11;
NBSP = 12;
c = C | Ra;
n = N N?;
z = ZWJ|ZWNJ;
matra_group = M N? H?;
syllable_tail = SM? (VD VD?)?;
consonant_syllable = (c.N? (H.z?|z.H))* c.N? A? (H.z? | matra_group*)? syllable_tail;
vowel_syllable = (Ra H)? V N? (z?.H.c | ZWJ.c)? matra_group* syllable_tail;
standalone_cluster = (Ra H)? NBSP N? (z? H c)? matra_group* syllable_tail;
consonant_syllable = (c.n? (H.z?|z.H))* c.n? A? (H.z? | matra_group*)? syllable_tail;
vowel_syllable = (Ra H)? V n? (z?.H.c | ZWJ.c)? matra_group* syllable_tail;
standalone_cluster = (Ra H)? NBSP n? (z? H c)? matra_group* syllable_tail;
other = any;
main := |*