#include "hb-ot-shape-complex-private.hh"
-/* TODO Add kana, and other small shapers here */
-
-
-/* The default shaper *only* adds additional per-script features.*/
-
-static const hb_tag_t hangul_features[] =
-{
- HB_TAG('l','j','m','o'),
- HB_TAG('v','j','m','o'),
- HB_TAG('t','j','m','o'),
- HB_TAG_NONE
-};
-
-static const hb_tag_t tibetan_features[] =
-{
- HB_TAG('a','b','v','s'),
- HB_TAG('b','l','w','s'),
- HB_TAG('a','b','v','m'),
- HB_TAG('b','l','w','m'),
- HB_TAG_NONE
-};
-
-static void
-collect_features_default (hb_ot_shape_planner_t *plan)
-{
- const hb_tag_t *script_features = NULL;
-
- switch ((hb_tag_t) plan->props.script)
- {
- /* Unicode-1.1 additions */
- case HB_SCRIPT_HANGUL:
- script_features = hangul_features;
- break;
-
- /* Unicode-2.0 additions */
- case HB_SCRIPT_TIBETAN:
- script_features = tibetan_features;
- break;
- }
-
- for (; script_features && *script_features; script_features++)
- plan->map.add_bool_feature (*script_features);
-}
-
-static hb_ot_shape_normalization_mode_t
-normalization_preference_default (const hb_segment_properties_t *props)
-{
- switch ((hb_tag_t) props->script)
- {
- /* Unicode-1.1 additions */
- case HB_SCRIPT_HANGUL:
- return HB_OT_SHAPE_NORMALIZATION_MODE_COMPOSED_FULL;
- }
- return HB_OT_SHAPE_NORMALIZATION_MODE_COMPOSED_DIACRITICS;
-}
-
-static bool
-compose_default (const hb_ot_shape_normalize_context_t *c,
- hb_codepoint_t a,
- hb_codepoint_t b,
- hb_codepoint_t *ab)
-{
- /* Hebrew presentation-form shaping.
- * https://bugzilla.mozilla.org/show_bug.cgi?id=728866
- * Hebrew presentation forms with dagesh, for characters 0x05D0..0x05EA;
- * Note that some letters do not have a dagesh presForm encoded.
- */
- static const hb_codepoint_t sDageshForms[0x05EA - 0x05D0 + 1] = {
- 0xFB30, /* ALEF */
- 0xFB31, /* BET */
- 0xFB32, /* GIMEL */
- 0xFB33, /* DALET */
- 0xFB34, /* HE */
- 0xFB35, /* VAV */
- 0xFB36, /* ZAYIN */
- 0x0000, /* HET */
- 0xFB38, /* TET */
- 0xFB39, /* YOD */
- 0xFB3A, /* FINAL KAF */
- 0xFB3B, /* KAF */
- 0xFB3C, /* LAMED */
- 0x0000, /* FINAL MEM */
- 0xFB3E, /* MEM */
- 0x0000, /* FINAL NUN */
- 0xFB40, /* NUN */
- 0xFB41, /* SAMEKH */
- 0x0000, /* AYIN */
- 0xFB43, /* FINAL PE */
- 0xFB44, /* PE */
- 0x0000, /* FINAL TSADI */
- 0xFB46, /* TSADI */
- 0xFB47, /* QOF */
- 0xFB48, /* RESH */
- 0xFB49, /* SHIN */
- 0xFB4A /* TAV */
- };
-
- bool found = c->unicode->compose (a, b, ab);
-
- if (!found && (b & ~0x7F) == 0x0580) {
- /* Special-case Hebrew presentation forms that are excluded from
- * standard normalization, but wanted for old fonts. */
- switch (b) {
- case 0x05B4: /* HIRIQ */
- if (a == 0x05D9) { /* YOD */
- *ab = 0xFB1D;
- found = true;
- }
- break;
- case 0x05B7: /* patah */
- if (a == 0x05F2) { /* YIDDISH YOD YOD */
- *ab = 0xFB1F;
- found = true;
- } else if (a == 0x05D0) { /* ALEF */
- *ab = 0xFB2E;
- found = true;
- }
- break;
- case 0x05B8: /* QAMATS */
- if (a == 0x05D0) { /* ALEF */
- *ab = 0xFB2F;
- found = true;
- }
- break;
- case 0x05B9: /* HOLAM */
- if (a == 0x05D5) { /* VAV */
- *ab = 0xFB4B;
- found = true;
- }
- break;
- case 0x05BC: /* DAGESH */
- if (a >= 0x05D0 && a <= 0x05EA) {
- *ab = sDageshForms[a - 0x05D0];
- found = (*ab != 0);
- } else if (a == 0xFB2A) { /* SHIN WITH SHIN DOT */
- *ab = 0xFB2C;
- found = true;
- } else if (a == 0xFB2B) { /* SHIN WITH SIN DOT */
- *ab = 0xFB2D;
- found = true;
- }
- break;
- case 0x05BF: /* RAFE */
- switch (a) {
- case 0x05D1: /* BET */
- *ab = 0xFB4C;
- found = true;
- break;
- case 0x05DB: /* KAF */
- *ab = 0xFB4D;
- found = true;
- break;
- case 0x05E4: /* PE */
- *ab = 0xFB4E;
- found = true;
- break;
- }
- break;
- case 0x05C1: /* SHIN DOT */
- if (a == 0x05E9) { /* SHIN */
- *ab = 0xFB2A;
- found = true;
- } else if (a == 0xFB49) { /* SHIN WITH DAGESH */
- *ab = 0xFB2C;
- found = true;
- }
- break;
- case 0x05C2: /* SIN DOT */
- if (a == 0x05E9) { /* SHIN */
- *ab = 0xFB2B;
- found = true;
- } else if (a == 0xFB49) { /* SHIN WITH DAGESH */
- *ab = 0xFB2D;
- found = true;
- }
- break;
- }
- }
-
- return found;
-}
-
const hb_ot_complex_shaper_t _hb_ot_complex_shaper_default =
{
"default",
- collect_features_default,
+ NULL, /* collect_features */
NULL, /* override_features */
NULL, /* data_create */
NULL, /* data_destroy */
NULL, /* preprocess_text */
- normalization_preference_default,
+ HB_OT_SHAPE_NORMALIZATION_MODE_DEFAULT,
NULL, /* decompose */
- compose_default,
+ NULL, /* compose */
NULL, /* setup_masks */
- true, /* zero_width_attached_marks */
+ HB_OT_SHAPE_ZERO_WIDTH_MARKS_DEFAULT,
true, /* fallback_position */
};
projects / platform / upstream / harfbuzz.git / blobdiff