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[indic] Swith pref logic to use _hb_glyph_info_substituted()

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See comments from caveat!  Seems to work fine.

This is useful for Javanese which has an atomically encoded pre-base
reordering Ra which should only be reordered if it was substituted
by the pref feature.
This commit is contained in:
Behdad Esfahbod 2013-10-18 02:14:53 +02:00
parent f175aa33c5
commit 9a49351cc2
1 changed files with 4 additions and 2 deletions
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6
src/hb-ot-shape-complex-indic.cc
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@ -1552,7 +1552,9 @@ final_reordering_syllable (const hb_ot_shape_plan_t *plan,
* of the <pref> feature. (Note that a font may shape a Ra consonant with
* the feature generally but block it in certain contexts.)
*/
if (i + 1 == end || (info[i + 1].mask & indic_plan->mask_array[PREF]) == 0)
/* Note: We just check that something got substituted. We don't check that
* the <pref> feature actually did it... */
if (_hb_glyph_info_substituted (&info[i]))
{
/*
* 2. Try to find a target position the same way as for pre-base matra.
@ -1573,7 +1575,7 @@ final_reordering_syllable (const hb_ot_shape_plan_t *plan,
!(is_one_of (info[new_pos - 1], FLAG(OT_M) | HALANT_OR_COENG_FLAGS)))
new_pos--;
/* In Khmer coeng model, a V,Ra can go *after* matras. If it goes after a
/* In Khmer coeng model, a H,Ra can go *after* matras. If it goes after a
* split matra, it should be reordered to *before* the left part of such matra. */
if (new_pos > start && info[new_pos - 1].indic_category() == OT_M)
{