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[Indic] Recategorize Khmer various signs as top matras 

Khmer failures down from 39 to 31 (0.0103636%).
This commit is contained in:
Behdad Esfahbod 2012-07-24 02:22:18 -04:00
parent d90b8e841e
commit 6824a7194e
1 changed files with 10 additions and 13 deletions
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23
src/hb-ot-shape-complex-indic.cc
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@ -236,13 +236,14 @@ set_indic_properties (hb_glyph_info_t &info, hb_ot_map_t *map, hb_font_t *font)
{
hb_codepoint_t u = info.codepoint;
unsigned int type = get_indic_categories (u);
indic_category_t cat = (indic_category_t) (type & 0x0F);
indic_position_t pos = (indic_position_t) (type >> 4);
/*
* Assign category
* Re-assign category
*/
indic_category_t cat = (indic_category_t) (type & 0x0F);
/* The spec says U+0952 is OT_A. However, testing shows that Uniscribe
* treats U+0951..U+0952 all as OT_VD.
@ -256,8 +257,12 @@ set_indic_properties (hb_glyph_info_t &info, hb_ot_map_t *map, hb_font_t *font)
cat = OT_VD;
if (cat == OT_X &&
unlikely (hb_in_range<hb_codepoint_t> (u, 0x17CB, 0x17D2))) /* Khmer Various signs */
cat = OT_N;
unlikely (hb_in_range<hb_codepoint_t> (u, 0x17CB, 0x17D3))) /* Khmer Various signs */
{
/* These are like Top Matras. */
cat = OT_M;
pos = POS_ABOVE_C;
}
if (u == 0x17C6) /* Khmer Bindu doesn't like to be repositioned. */
cat = OT_N;
@ -280,13 +285,10 @@ set_indic_properties (hb_glyph_info_t &info, hb_ot_map_t *map, hb_font_t *font)
/*
* Assign position.
* Re-assign position.
*/
indic_position_t pos = (indic_position_t) (type >> 4);
if ((FLAG (cat) & CONSONANT_FLAGS))
{
pos = consonant_position (u, map, font);
@ -304,11 +306,6 @@ set_indic_properties (hb_glyph_info_t &info, hb_ot_map_t *map, hb_font_t *font)
if (unlikely (u == 0x0B01)) pos = POS_BEFORE_SUB; /* Oriya Bindu is BeforeSub in the spec. */
if (u == 0x17CE) /* U+17CE is not in Indic files. Likes to be treated like Top Matra */
{
cat = OT_M;
pos = POS_AFTER_SUB;
}
info.indic_category() = cat;