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[USE] Don't compose split matras 

Same logic as in Indic shaper.
This commit is contained in:
Behdad Esfahbod 2015-07-21 18:09:40 +01:00
parent 21cb08a417
commit a08a278b15
1 changed files with 14 additions and 1 deletions
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15
src/hb-ot-shape-complex-use.cc
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@ -462,6 +462,19 @@ reorder (const hb_ot_shape_plan_t *plan,
HB_BUFFER_DEALLOCATE_VAR (buffer, use_category);
}
static bool
compose_use (const hb_ot_shape_normalize_context_t *c,
hb_codepoint_t a,
hb_codepoint_t b,
hb_codepoint_t *ab)
{
/* Avoid recomposing split matras. */
if (HB_UNICODE_GENERAL_CATEGORY_IS_MARK (c->unicode->general_category (a)))
return false;
return c->unicode->compose (a, b, ab);
}
const hb_ot_complex_shaper_t _hb_ot_complex_shaper_use =
{
@ -473,7 +486,7 @@ const hb_ot_complex_shaper_t _hb_ot_complex_shaper_use =
NULL, /* preprocess_text */
HB_OT_SHAPE_NORMALIZATION_MODE_COMPOSED_DIACRITICS_NO_SHORT_CIRCUIT,
NULL, /* decompose */
NULL, /* compose */
compose_use,
setup_masks_use,
HB_OT_SHAPE_ZERO_WIDTH_MARKS_NONE,
false, /* fallback_position */