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Readjust mark attachment heuristic a bit more 

Previously adjusted logic could fail if nothing around was ligated,
and something moved.  This should take care of that.

CC https://github.com/harfbuzz/harfbuzz/issues/740
This commit is contained in:
Behdad Esfahbod 2018-02-18 15:57:09 -08:00
parent 246e280d88
commit 1c50a88623
1 changed files with 4 additions and 1 deletions
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5
src/hb-ot-layout-gpos-table.hh
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@ -1079,7 +1079,10 @@ struct MarkBasePosFormat1
0 == _hb_glyph_info_get_lig_comp (&buffer->info[skippy_iter.idx]) ||
(skippy_iter.idx == 0 ||
_hb_glyph_info_get_lig_id (&buffer->info[skippy_iter.idx]) !=
_hb_glyph_info_get_lig_id (&buffer->info[skippy_iter.idx - 1])))
_hb_glyph_info_get_lig_id (&buffer->info[skippy_iter.idx - 1]) ||
_hb_glyph_info_get_lig_comp (&buffer->info[skippy_iter.idx]) !=
_hb_glyph_info_get_lig_comp (&buffer->info[skippy_iter.idx - 1]) + 1
))
break;
skippy_iter.reject ();
} while (1);