Hi:
Problem about finding the vowel syllable:
If the Indic shaper of Harfbuzz are following the OT specification of
Microsoft, then the following rule in “hb-ot-shape-complex-indic-machine.rl”
should be changed:
vowel_syllable = (Ra H)? V N? (z.H.c | ZWJ.c)? matra_group*
syllable_tail %(found_vowel_syllable); =>
vowel_syllable = (Ra H)? V N? (z?.H.c | ZWJ.c)? matra_group*
syllable_tail %(found_vowel_syllable);
please refer to
http://www.microsoft.com/typography/otfntdev/devanot/shaping.aspx
Br,
Dean
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