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Diffstat (limited to 'Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-shape-complex-indic.cc')
-rw-r--r--Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-shape-complex-indic.cc132
1 files changed, 25 insertions, 107 deletions
diff --git a/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-shape-complex-indic.cc b/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-shape-complex-indic.cc
index 97d6d38287a..9d150e0d3c1 100644
--- a/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-shape-complex-indic.cc
+++ b/Build/source/libs/harfbuzz/harfbuzz-src/src/hb-ot-shape-complex-indic.cc
@@ -49,7 +49,6 @@
#define IS_KNDA(u) (IN_HALF_BLOCK (u, 0x0C80u))
#define IS_MLYM(u) (IN_HALF_BLOCK (u, 0x0D00u))
#define IS_SINH(u) (IN_HALF_BLOCK (u, 0x0D80u))
-#define IS_KHMR(u) (IN_HALF_BLOCK (u, 0x1780u))
#define MATRA_POS_LEFT(u) POS_PRE_M
@@ -64,7 +63,6 @@
IS_KNDA(u) ? (u < 0x0CC3u || u > 0xCD6u ? POS_BEFORE_SUB : POS_AFTER_SUB) : \
IS_MLYM(u) ? POS_AFTER_POST : \
IS_SINH(u) ? POS_AFTER_SUB : \
- IS_KHMR(u) ? POS_AFTER_POST : \
/*default*/ POS_AFTER_SUB \
)
#define MATRA_POS_TOP(u) ( /* BENG and MLYM don't have top matras. */ \
@@ -76,7 +74,6 @@
IS_TELU(u) ? POS_BEFORE_SUB : \
IS_KNDA(u) ? POS_BEFORE_SUB : \
IS_SINH(u) ? POS_AFTER_SUB : \
- IS_KHMR(u) ? POS_AFTER_POST : \
/*default*/ POS_AFTER_SUB \
)
#define MATRA_POS_BOTTOM(u) ( \
@@ -90,7 +87,6 @@
IS_KNDA(u) ? POS_BEFORE_SUB : \
IS_MLYM(u) ? POS_AFTER_POST : \
IS_SINH(u) ? POS_AFTER_SUB : \
- IS_KHMR(u) ? POS_AFTER_POST : \
/*default*/ POS_AFTER_SUB \
)
@@ -124,8 +120,6 @@ static const hb_codepoint_t ra_chars[] = {
0x0D30u, /* Malayalam */ /* No Reph, Logical Repha */
0x0DBBu, /* Sinhala */ /* Reph formed only with ZWJ */
-
- 0x179Au, /* Khmer */ /* No Reph, Visual Repha */
};
static inline bool
@@ -158,9 +152,9 @@ is_consonant (const hb_glyph_info_t &info)
}
static inline bool
-is_halant_or_coeng (const hb_glyph_info_t &info)
+is_halant (const hb_glyph_info_t &info)
{
- return is_one_of (info, HALANT_OR_COENG_FLAGS);
+ return is_one_of (info, FLAG (OT_H));
}
static inline void
@@ -200,14 +194,6 @@ set_indic_properties (hb_glyph_info_t &info)
cat = OT_Symbol;
static_assert (((int) INDIC_SYLLABIC_CATEGORY_AVAGRAHA == OT_Symbol), "");
}
- else if (unlikely (hb_in_range<hb_codepoint_t> (u, 0x17CDu, 0x17D1u) ||
- u == 0x17CBu || u == 0x17D3u || u == 0x17DDu)) /* Khmer Various signs */
- {
- /* These can occur mid-syllable (eg. before matras), even though Unicode marks them as Syllable_Modifier.
- * https://github.com/roozbehp/unicode-data/issues/5 */
- cat = OT_M;
- pos = POS_ABOVE_C;
- }
else if (unlikely (u == 0x0A51u))
{
/* https://github.com/harfbuzz/harfbuzz/issues/524 */
@@ -224,7 +210,6 @@ set_indic_properties (hb_glyph_info_t &info)
else if (unlikely (u == 0x0980u)) cat = OT_PLACEHOLDER; /* https://github.com/harfbuzz/harfbuzz/issues/538 */
else if (unlikely (u == 0x0C80u)) cat = OT_PLACEHOLDER; /* https://github.com/harfbuzz/harfbuzz/pull/623 */
- else if (unlikely (u == 0x17C6u)) cat = OT_N; /* Khmer Bindu doesn't like to be repositioned. */
else if (unlikely (hb_in_range<hb_codepoint_t> (u, 0x2010u, 0x2011u)))
cat = OT_PLACEHOLDER;
else if (unlikely (u == 0x25CCu)) cat = OT_DOTTEDCIRCLE;
@@ -244,7 +229,7 @@ set_indic_properties (hb_glyph_info_t &info)
{
pos = matra_position (u, pos);
}
- else if ((FLAG_UNSAFE (cat) & (FLAG (OT_SM) | FLAG (OT_VD) | FLAG (OT_A) | FLAG (OT_Symbol))))
+ else if ((FLAG_UNSAFE (cat) & (FLAG (OT_SM) /* | FLAG (OT_VD) */ | FLAG (OT_A) | FLAG (OT_Symbol))))
{
pos = POS_SMVD;
}
@@ -271,7 +256,6 @@ set_indic_properties (hb_glyph_info_t &info)
*/
enum base_position_t {
- BASE_POS_FIRST,
BASE_POS_LAST_SINHALA,
BASE_POS_LAST
};
@@ -280,13 +264,11 @@ enum reph_position_t {
REPH_POS_BEFORE_SUB = POS_BEFORE_SUB,
REPH_POS_AFTER_SUB = POS_AFTER_SUB,
REPH_POS_BEFORE_POST = POS_BEFORE_POST,
- REPH_POS_AFTER_POST = POS_AFTER_POST,
- REPH_POS_DONT_CARE = POS_RA_TO_BECOME_REPH
+ REPH_POS_AFTER_POST = POS_AFTER_POST
};
enum reph_mode_t {
REPH_MODE_IMPLICIT, /* Reph formed out of initial Ra,H sequence. */
REPH_MODE_EXPLICIT, /* Reph formed out of initial Ra,H,ZWJ sequence. */
- REPH_MODE_VIS_REPHA, /* Encoded Repha character, no reordering needed. */
REPH_MODE_LOG_REPHA /* Encoded Repha character, needs reordering. */
};
enum blwf_mode_t {
@@ -319,7 +301,6 @@ static const indic_config_t indic_configs[] =
{HB_SCRIPT_MALAYALAM, true, 0x0D4Du,BASE_POS_LAST, REPH_POS_AFTER_MAIN, REPH_MODE_LOG_REPHA,BLWF_MODE_PRE_AND_POST},
{HB_SCRIPT_SINHALA, false,0x0DCAu,BASE_POS_LAST_SINHALA,
REPH_POS_AFTER_MAIN, REPH_MODE_EXPLICIT, BLWF_MODE_PRE_AND_POST},
- {HB_SCRIPT_KHMER, false,0x17D2u,BASE_POS_FIRST,REPH_POS_DONT_CARE, REPH_MODE_VIS_REPHA,BLWF_MODE_PRE_AND_POST},
};
@@ -351,7 +332,6 @@ indic_features[] =
{HB_TAG('p','s','t','f'), F_NONE},
{HB_TAG('v','a','t','u'), F_GLOBAL},
{HB_TAG('c','j','c','t'), F_GLOBAL},
- {HB_TAG('c','f','a','r'), F_NONE},
/*
* Other features.
* These features are applied all at once, after final_reordering.
@@ -385,7 +365,6 @@ enum {
PSTF,
_VATU,
_CJCT,
- CFAR,
INIT,
_PRES,
@@ -452,17 +431,6 @@ collect_features_indic (hb_ot_shape_planner_t *plan)
static void
override_features_indic (hb_ot_shape_planner_t *plan)
{
- /* Uniscribe does not apply 'kern' in Khmer. */
- if (hb_options ().uniscribe_bug_compatible)
- {
- switch ((hb_tag_t) plan->props.script)
- {
- case HB_SCRIPT_KHMER:
- plan->map.add_feature (HB_TAG('k','e','r','n'), 0, F_GLOBAL);
- break;
- }
- }
-
plan->map.add_feature (HB_TAG('l','i','g','a'), 0, F_GLOBAL);
}
@@ -730,8 +698,7 @@ initial_reordering_consonant_syllable (const hb_ot_shape_plan_t *plan,
* and has more than one consonant, Ra is excluded from candidates for
* base consonants. */
unsigned int limit = start;
- if (indic_plan->config->reph_pos != REPH_POS_DONT_CARE &&
- indic_plan->mask_array[RPHF] &&
+ if (indic_plan->mask_array[RPHF] &&
start + 3 <= end &&
(
(indic_plan->config->reph_mode == REPH_MODE_IMPLICIT && !is_joiner (info[start + 2])) ||
@@ -840,22 +807,6 @@ 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);
- assert (!has_reph);
-
- 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_BELOW_C;
- }
- break;
}
/* -> If the syllable starts with Ra + Halant (in a script that has Reph)
@@ -910,15 +861,15 @@ initial_reordering_consonant_syllable (const hb_ot_shape_plan_t *plan,
if (base < end)
info[base].indic_position() = POS_BASE_C;
- /* Mark final consonants. A final consonant is one appearing after a matra,
- * like in Khmer. */
+ /* Mark final consonants. A final consonant is one appearing after a matra.
+ * Happens in Sinhala. */
for (unsigned int i = base + 1; i < end; i++)
if (info[i].indic_category() == OT_M) {
for (unsigned int j = i + 1; j < end; j++)
- if (is_consonant (info[j])) {
- info[j].indic_position() = POS_FINAL_C;
- break;
- }
+ if (is_consonant (info[j])) {
+ info[j].indic_position() = POS_FINAL_C;
+ break;
+ }
break;
}
@@ -969,7 +920,7 @@ initial_reordering_consonant_syllable (const hb_ot_shape_plan_t *plan,
indic_position_t last_pos = POS_START;
for (unsigned int i = start; i < end; i++)
{
- if ((FLAG_UNSAFE (info[i].indic_category()) & (JOINER_FLAGS | FLAG (OT_N) | FLAG (OT_RS) | MEDIAL_FLAGS | HALANT_OR_COENG_FLAGS)))
+ if ((FLAG_UNSAFE (info[i].indic_category()) & (JOINER_FLAGS | FLAG (OT_N) | FLAG (OT_RS) | MEDIAL_FLAGS | FLAG (OT_H))))
{
info[i].indic_position() = last_pos;
if (unlikely (info[i].indic_category() == OT_H &&
@@ -1133,17 +1084,6 @@ initial_reordering_consonant_syllable (const hb_ot_shape_plan_t *plan,
{
for (unsigned int j = 0; j < pref_len; j++)
info[i++].mask |= indic_plan->mask_array[PREF];
-
- /* Mark the subsequent stuff with 'cfar'. Used in Khmer.
- * Read the feature spec.
- * This allows distinguishing the following cases with MS Khmer fonts:
- * U+1784,U+17D2,U+179A,U+17D2,U+1782
- * U+1784,U+17D2,U+1782,U+17D2,U+179A
- */
- if (indic_plan->mask_array[CFAR])
- for (; i < end; i++)
- info[i].mask |= indic_plan->mask_array[CFAR];
-
break;
}
}
@@ -1311,7 +1251,7 @@ final_reordering_syllable (const hb_ot_shape_plan_t *plan,
_hb_glyph_info_ligated (&info[i]) &&
_hb_glyph_info_multiplied (&info[i]))
{
- /* This will make sure that this glyph passes is_halant_or_coeng() test. */
+ /* This will make sure that this glyph passes is_halant() test. */
info[i].indic_category() = OT_H;
_hb_glyph_info_clear_ligated_and_multiplied (&info[i]);
}
@@ -1344,7 +1284,7 @@ final_reordering_syllable (const hb_ot_shape_plan_t *plan,
/* Ok, this was a 'pref' candidate but didn't form any.
* Base is around here... */
base = i;
- while (base < end && is_halant_or_coeng (info[base]))
+ while (base < end && is_halant (info[base]))
base++;
info[base].indic_position() = POS_BASE_C;
@@ -1360,7 +1300,7 @@ final_reordering_syllable (const hb_ot_shape_plan_t *plan,
{
while (i < end && is_joiner (info[i]))
i++;
- if (i == end || !is_halant_or_coeng (info[i]))
+ if (i == end || !is_halant (info[i]))
break;
i++; /* Skip halant. */
while (i < end && is_joiner (info[i]))
@@ -1382,7 +1322,7 @@ final_reordering_syllable (const hb_ot_shape_plan_t *plan,
base--;
if (base < end)
while (start < base &&
- is_one_of (info[base], (FLAG (OT_N) | HALANT_OR_COENG_FLAGS)))
+ is_one_of (info[base], (FLAG (OT_N) | FLAG (OT_H))))
base--;
@@ -1408,13 +1348,13 @@ final_reordering_syllable (const hb_ot_shape_plan_t *plan,
if (buffer->props.script != HB_SCRIPT_MALAYALAM && buffer->props.script != HB_SCRIPT_TAMIL)
{
while (new_pos > start &&
- !(is_one_of (info[new_pos], (FLAG (OT_M) | HALANT_OR_COENG_FLAGS))))
+ !(is_one_of (info[new_pos], (FLAG (OT_M) | FLAG (OT_H)))))
new_pos--;
/* If we found no Halant we are done.
* Otherwise only proceed if the Halant does
* not belong to the Matra itself! */
- if (is_halant_or_coeng (info[new_pos]) &&
+ if (is_halant (info[new_pos]) &&
info[new_pos].indic_position() != POS_PRE_M)
{
/* -> If ZWJ or ZWNJ follow this halant, position is moved after it. */
@@ -1481,8 +1421,6 @@ final_reordering_syllable (const hb_ot_shape_plan_t *plan,
unsigned int new_reph_pos;
reph_position_t reph_pos = indic_plan->config->reph_pos;
- assert (reph_pos != REPH_POS_DONT_CARE);
-
/* 1. If reph should be positioned after post-base consonant forms,
* proceed to step 5.
*/
@@ -1504,10 +1442,10 @@ final_reordering_syllable (const hb_ot_shape_plan_t *plan,
*/
{
new_reph_pos = start + 1;
- while (new_reph_pos < base && !is_halant_or_coeng (info[new_reph_pos]))
+ while (new_reph_pos < base && !is_halant (info[new_reph_pos]))
new_reph_pos++;
- if (new_reph_pos < base && is_halant_or_coeng (info[new_reph_pos]))
+ if (new_reph_pos < base && is_halant (info[new_reph_pos]))
{
/* ->If ZWJ or ZWNJ are following this halant, position is moved after it. */
if (new_reph_pos + 1 < base && is_joiner (info[new_reph_pos + 1]))
@@ -1556,10 +1494,10 @@ final_reordering_syllable (const hb_ot_shape_plan_t *plan,
{
/* Copied from step 2. */
new_reph_pos = start + 1;
- while (new_reph_pos < base && !is_halant_or_coeng (info[new_reph_pos]))
+ while (new_reph_pos < base && !is_halant (info[new_reph_pos]))
new_reph_pos++;
- if (new_reph_pos < base && is_halant_or_coeng (info[new_reph_pos]))
+ if (new_reph_pos < base && is_halant (info[new_reph_pos]))
{
/* ->If ZWJ or ZWNJ are following this halant, position is moved after it. */
if (new_reph_pos + 1 < base && is_joiner (info[new_reph_pos + 1]))
@@ -1583,7 +1521,7 @@ final_reordering_syllable (const hb_ot_shape_plan_t *plan,
* TEST: U+0930,U+094D,U+0915,U+094B,U+094D
*/
if (!hb_options ().uniscribe_bug_compatible &&
- unlikely (is_halant_or_coeng (info[new_reph_pos]))) {
+ unlikely (is_halant (info[new_reph_pos]))) {
for (unsigned int i = base + 1; i < new_reph_pos; i++)
if (info[i].indic_category() == OT_M) {
/* Ok, got it. */
@@ -1644,24 +1582,11 @@ final_reordering_syllable (const hb_ot_shape_plan_t *plan,
if (buffer->props.script != HB_SCRIPT_MALAYALAM && buffer->props.script != HB_SCRIPT_TAMIL)
{
while (new_pos > start &&
- !(is_one_of (info[new_pos - 1], FLAG(OT_M) | HALANT_OR_COENG_FLAGS)))
+ !(is_one_of (info[new_pos - 1], FLAG(OT_M) | FLAG (OT_H))))
new_pos--;
-
- /* In Khmer coeng model, a H,Ra can go *after* matras. If it goes after a
- * split matra, it should be reordered to *before* the left part of such matra. */
- if (new_pos > start && info[new_pos - 1].indic_category() == OT_M)
- {
- unsigned int old_pos = i;
- for (unsigned int j = base + 1; j < old_pos; j++)
- if (info[j].indic_category() == OT_M)
- {
- new_pos--;
- break;
- }
- }
}
- if (new_pos > start && is_halant_or_coeng (info[new_pos - 1]))
+ if (new_pos > start && is_halant (info[new_pos - 1]))
{
/* -> If ZWJ or ZWNJ follow this halant, position is moved after it. */
if (new_pos < end && is_joiner (info[new_pos]))
@@ -1766,13 +1691,6 @@ decompose_indic (const hb_ot_shape_normalize_context_t *c,
* Decompose split matras that don't have Unicode decompositions.
*/
- /* Khmer */
- case 0x17BEu : *a = 0x17C1u; *b= 0x17BEu; return true;
- case 0x17BFu : *a = 0x17C1u; *b= 0x17BFu; return true;
- case 0x17C0u : *a = 0x17C1u; *b= 0x17C0u; return true;
- case 0x17C4u : *a = 0x17C1u; *b= 0x17C4u; return true;
- case 0x17C5u : *a = 0x17C1u; *b= 0x17C5u; return true;
-
#if 0
/* Gujarati */
/* This one has no decomposition in Unicode, but needs no decomposition either. */