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[indic] Add BASE_POS_LAST_SINHALA 

Previously we planted this into the mode used for Khmer.  There's not
really much in common between the two, so separate again.
This commit is contained in:
Behdad Esfahbod 2013-10-17 16:49:06 +02:00
parent 9ac6b01e0c
commit e10453e6fb
1 changed files with 19 additions and 2 deletions
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21
src/hb-ot-shape-complex-indic.cc
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@ -277,6 +277,7 @@ set_indic_properties (hb_glyph_info_t &info)
enum base_position_t {
BASE_POS_FIRST,
BASE_POS_LAST_SINHALA,
BASE_POS_LAST
};
enum reph_position_t {
@ -322,7 +323,8 @@ static const indic_config_t indic_configs[] =
{HB_SCRIPT_TELUGU, true, 0x0C4D,BASE_POS_LAST, REPH_POS_AFTER_POST, REPH_MODE_EXPLICIT, BLWF_MODE_POST_ONLY},
{HB_SCRIPT_KANNADA, true, 0x0CCD,BASE_POS_LAST, REPH_POS_AFTER_POST, REPH_MODE_IMPLICIT, BLWF_MODE_POST_ONLY},
{HB_SCRIPT_MALAYALAM, true, 0x0D4D,BASE_POS_LAST, REPH_POS_AFTER_MAIN, REPH_MODE_LOG_REPHA,BLWF_MODE_PRE_AND_POST},
{HB_SCRIPT_SINHALA, false,0x0DCA,BASE_POS_FIRST,REPH_POS_AFTER_MAIN, REPH_MODE_EXPLICIT, BLWF_MODE_PRE_AND_POST},
{HB_SCRIPT_SINHALA, false,0x0DCA,BASE_POS_LAST_SINHALA,
REPH_POS_AFTER_MAIN, REPH_MODE_EXPLICIT, BLWF_MODE_PRE_AND_POST},
{HB_SCRIPT_KHMER, false,0x17D2,BASE_POS_FIRST,REPH_POS_DEFAULT, REPH_MODE_VIS_REPHA,BLWF_MODE_PRE_AND_POST},
{HB_SCRIPT_JAVANESE, false,0xA9C0,BASE_POS_LAST, REPH_POS_DEFAULT, REPH_MODE_IMPLICIT, BLWF_MODE_PRE_AND_POST},
};
@ -782,7 +784,7 @@ initial_reordering_consonant_syllable (const hb_ot_shape_plan_t *plan,
}
break;
case BASE_POS_FIRST:
case BASE_POS_LAST_SINHALA:
{
/* In scripts without half forms (eg. Khmer), the first consonant is always the base. */
@ -806,6 +808,21 @@ initial_reordering_consonant_syllable (const hb_ot_shape_plan_t *plan,
info[i].indic_position() = POS_BELOW_C;
}
break;
case BASE_POS_FIRST:
{
/* The first consonant is always the base. */
assert (indic_plan->config->reph_mode == REPH_MODE_VIS_REPHA);
base = start;
/* Mark all subsequent consonants as below. */
for (unsigned int i = base + 1; i < end; i++)
if (is_consonant (info[i]) && info[i].indic_position() == POS_BASE_C)
info[i].indic_position() = POS_BELOW_C;
}
break;
}
/* -> If the syllable starts with Ra + Halant (in a script that has Reph)