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[indic] Improve Avagraha support in machine

This commit is contained in:
Behdad Esfahbod 2013-10-16 19:55:06 +02:00
parent 3756efaf4e
commit 1a7de1ba98
1 changed files with 4 additions and 2 deletions
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6
src/hb-ot-shape-complex-indic-machine.rl
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@ -66,8 +66,10 @@ reph = (Ra H | Repha); # possible reph
cn = c.ZWJ?.n?; cn = c.ZWJ?.n?;
forced_rakar = ZWJ H ZWJ Ra; forced_rakar = ZWJ H ZWJ Ra;
avagraha = Avag.N?;
matra_group = z{0,3}.M.N?.(H | forced_rakar)?; matra_group = z{0,3}.M.N?.(H | forced_rakar)?;
syllable_tail = (Coeng (cn|V))? (Avag.N?)? (SM.SM?.ZWNJ?)? (A.A?)? VD?; syllable_tail2 = (SM.SM?.ZWNJ?)? (A.A?)? VD?;
syllable_tail = (Coeng (cn|V))? avagraha? syllable_tail2;
place_holder = NBSP | DOTTEDCIRCLE; place_holder = NBSP | DOTTEDCIRCLE;
halant_group = (z?.h.(ZWJ.N?)?); halant_group = (z?.h.(ZWJ.N?)?);
final_halant_group = halant_group | h.ZWNJ; final_halant_group = halant_group | h.ZWNJ;
@ -77,7 +79,7 @@ halant_or_matra_group = (CM.CM* | final_halant_group | (h.ZWJ)? matra_group{0,4}
consonant_syllable = Repha? (cn.halant_group){0,4} cn halant_or_matra_group? syllable_tail; consonant_syllable = Repha? (cn.halant_group){0,4} cn halant_or_matra_group? syllable_tail;
vowel_syllable = reph? V.n? (ZWJ | (halant_group.cn){0,4} halant_or_matra_group? syllable_tail); vowel_syllable = reph? V.n? (ZWJ | (halant_group.cn){0,4} halant_or_matra_group? syllable_tail);
standalone_cluster = reph? place_holder.n? (halant_group.cn){0,4} halant_or_matra_group? syllable_tail; standalone_cluster = reph? place_holder.n? (halant_group.cn){0,4} halant_or_matra_group? syllable_tail;
avagraha_cluster = Avag.N? (SM.ZWNJ?)? (VD VD?)?; avagraha_cluster = avagraha syllable_tail2;
broken_cluster = reph? n? (halant_group.cn){0,4} halant_or_matra_group syllable_tail; broken_cluster = reph? n? (halant_group.cn){0,4} halant_or_matra_group syllable_tail;
other = any; other = any;