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[Indic] Don't move virama with left matra 

This is important for the Sinhala U+0DDA split matra since it decomposes
to U+0DD9,U+0DCA where U+0DD9 is a left matra and U+0DCA is the virama.
We don't want to move the virama with the left matra.
TEST: U+0D9A,U+0DDA

Note that we were already doing this in the Uniscribe bug compatibility
mode.  We now do it all the time.
This commit is contained in:
Behdad Esfahbod 2012-11-14 11:37:04 -08:00
parent 82c4d9880a
commit dde5506fd9
1 changed files with 6 additions and 2 deletions
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8
src/hb-ot-shape-complex-indic.cc
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@ -662,13 +662,17 @@ initial_reordering_consonant_syllable (const hb_ot_shape_plan_t *plan,
if ((FLAG (info[i].indic_category()) & (JOINER_FLAGS | FLAG (OT_N) | FLAG (OT_RS) | HALANT_OR_COENG_FLAGS))) if ((FLAG (info[i].indic_category()) & (JOINER_FLAGS | FLAG (OT_N) | FLAG (OT_RS) | HALANT_OR_COENG_FLAGS)))
{ {
info[i].indic_position() = last_pos; info[i].indic_position() = last_pos;
if (unlikely (indic_options ().uniscribe_bug_compatible && if (unlikely (info[i].indic_category() == OT_H &&
info[i].indic_category() == OT_H &&
info[i].indic_position() == POS_PRE_M)) info[i].indic_position() == POS_PRE_M))
{ {
/* /*
* Uniscribe doesn't move the Halant with Left Matra. * Uniscribe doesn't move the Halant with Left Matra.
* TEST: U+092B,U+093F,U+094DE * TEST: U+092B,U+093F,U+094DE
* We follow. This is important for the Sinhala
* U+0DDA split matra since it decomposes to U+0DD9,U+0DCA
* where U+0DD9 is a left matra and U+0DCA is the virama.
* We don't want to move the virama with the left matra.
* TEST: U+0D9A,U+0DDA
*/ */
for (unsigned int j = i; j > start; j--) for (unsigned int j = i; j > start; j--)
if (info[j - 1].indic_position() != POS_PRE_M) { if (info[j - 1].indic_position() != POS_PRE_M) {