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This commit is contained in:
Behdad Esfahbod 2011-07-30 19:15:53 -04:00
parent 352372ae5e
commit ee58f3bc75
1 changed files with 12 additions and 11 deletions
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23
src/hb-ot-shape-complex-indic.cc
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@ -406,6 +406,7 @@ found_consonant_syllable (const hb_ot_map_t *map, hb_buffer_t *buffer, hb_mask_t
unsigned int start, unsigned int end) unsigned int start, unsigned int end)
{ {
unsigned int i; unsigned int i;
hb_glyph_info_t *info = buffer->info;
/* Comments from: /* Comments from:
* https://www.microsoft.com/typography/otfntdev/devanot/shaping.aspx */ * https://www.microsoft.com/typography/otfntdev/devanot/shaping.aspx */
@ -431,12 +432,12 @@ found_consonant_syllable (const hb_ot_map_t *map, hb_buffer_t *buffer, hb_mask_t
do { do {
i--; i--;
/* -> until a consonant is found */ /* -> until a consonant is found */
if (buffer->info[i].indic_category() == OT_C) if (info[i].indic_category() == OT_C)
{ {
/* -> that does not have a below-base or post-base form /* -> that does not have a below-base or post-base form
* (post-base forms have to follow below-base forms), */ * (post-base forms have to follow below-base forms), */
if (buffer->info[i].indic_position() != POS_BELOW && if (info[i].indic_position() != POS_BELOW &&
buffer->info[i].indic_position() != POS_POST) info[i].indic_position() != POS_POST)
{ {
base = i; base = i;
break; break;
@ -492,32 +493,32 @@ found_consonant_syllable (const hb_ot_map_t *map, hb_buffer_t *buffer, hb_mask_t
/* Reorder characters */ /* Reorder characters */
for (i = start; i < base; i++) for (i = start; i < base; i++)
buffer->info[i].indic_position() = POS_PRE; info[i].indic_position() = POS_PRE;
buffer->info[base].indic_position() = POS_BASE; info[base].indic_position() = POS_BASE;
/* Attach ZWJ, ZWNJ, nukta, and halant to previous char to move with them. */ /* Attach ZWJ, ZWNJ, nukta, and halant to previous char to move with them. */
for (i = start + 1; i < end; i++) for (i = start + 1; i < end; i++)
if ((FLAG (buffer->info[i].indic_category()) & if ((FLAG (info[i].indic_category()) &
(FLAG (OT_ZWNJ) | FLAG (OT_ZWJ) | FLAG (OT_N) | FLAG (OT_H)))) (FLAG (OT_ZWNJ) | FLAG (OT_ZWJ) | FLAG (OT_N) | FLAG (OT_H))))
buffer->info[i].indic_position() = buffer->info[i - 1].indic_position(); info[i].indic_position() = info[i - 1].indic_position();
/* We do bubble-sort, skip malicious clusters attempts */ /* We do bubble-sort, skip malicious clusters attempts */
if (end - start > 20) if (end - start > 20)
return; return;
/* Sit tight, rock 'n roll! */ /* Sit tight, rock 'n roll! */
hb_bubble_sort (buffer->info + start, end - start, compare_indic_order); hb_bubble_sort (info + start, end - start, compare_indic_order);
/* Setup masks now */ /* Setup masks now */
/* Pre-base */ /* Pre-base */
for (i = start; i < base; i++) for (i = start; i < base; i++)
buffer->info[i].mask |= mask_array[HALF] | mask_array[AKHN]; info[i].mask |= mask_array[HALF] | mask_array[AKHN];
/* Base */ /* Base */
buffer->info[base].mask |= mask_array[AKHN]; info[base].mask |= mask_array[AKHN];
/* Post-base */ /* Post-base */
for (i = base + 1; i < end; i++) for (i = base + 1; i < end; i++)
buffer->info[i].mask |= mask_array[BLWF] | mask_array[PSTF]; info[i].mask |= mask_array[BLWF] | mask_array[PSTF];
} }