| /* == Start of generated functions == */ |
| /* |
| * The following functions are generated by running: |
| * |
| * ./gen-vowel-constraints.py ms-use/IndicShapingInvalidCluster.txt Scripts.txt |
| * |
| * on files with these headers: |
| * |
| * # IndicShapingInvalidCluster.txt |
| * # Date: 2015-03-12, 21:17:00 GMT [AG] |
| * # Date: 2019-11-08, 23:22:00 GMT [AG] |
| * |
| * # Scripts-15.0.0.txt |
| * # Date: 2022-04-26, 23:15:02 GMT |
| */ |
| |
| #include "hb.hh" |
| |
| #ifndef HB_NO_OT_SHAPE |
| |
| #include "hb-ot-shaper-vowel-constraints.hh" |
| |
| static void |
| _output_dotted_circle (hb_buffer_t *buffer) |
| { |
| (void) buffer->output_glyph (0x25CCu); |
| _hb_glyph_info_reset_continuation (&buffer->prev()); |
| } |
| |
| static void |
| _output_with_dotted_circle (hb_buffer_t *buffer) |
| { |
| _output_dotted_circle (buffer); |
| (void) buffer->next_glyph (); |
| } |
| |
| void |
| _hb_preprocess_text_vowel_constraints (const hb_ot_shape_plan_t *plan HB_UNUSED, |
| hb_buffer_t *buffer, |
| hb_font_t *font HB_UNUSED) |
| { |
| #ifdef HB_NO_OT_SHAPER_VOWEL_CONSTRAINTS |
| return; |
| #endif |
| if (buffer->flags & HB_BUFFER_FLAG_DO_NOT_INSERT_DOTTED_CIRCLE) |
| return; |
| |
| /* UGLY UGLY UGLY business of adding dotted-circle in the middle of |
| * vowel-sequences that look like another vowel. Data for each script |
| * collected from the USE script development spec. |
| * |
| * https://github.com/harfbuzz/harfbuzz/issues/1019 |
| */ |
| buffer->clear_output (); |
| unsigned int count = buffer->len; |
| switch ((unsigned) buffer->props.script) |
| { |
| case HB_SCRIPT_DEVANAGARI: |
| for (buffer->idx = 0; buffer->idx + 1 < count && buffer->successful;) |
| { |
| bool matched = false; |
| switch (buffer->cur ().codepoint) |
| { |
| case 0x0905u: |
| switch (buffer->cur (1).codepoint) |
| { |
| case 0x093Au: case 0x093Bu: case 0x093Eu: case 0x0945u: |
| case 0x0946u: case 0x0949u: case 0x094Au: case 0x094Bu: |
| case 0x094Cu: case 0x094Fu: case 0x0956u: case 0x0957u: |
| matched = true; |
| break; |
| } |
| break; |
| case 0x0906u: |
| switch (buffer->cur (1).codepoint) |
| { |
| case 0x093Au: case 0x0945u: case 0x0946u: case 0x0947u: |
| case 0x0948u: |
| matched = true; |
| break; |
| } |
| break; |
| case 0x0909u: |
| matched = 0x0941u == buffer->cur (1).codepoint; |
| break; |
| case 0x090Fu: |
| switch (buffer->cur (1).codepoint) |
| { |
| case 0x0945u: case 0x0946u: case 0x0947u: |
| matched = true; |
| break; |
| } |
| break; |
| case 0x0930u: |
| if (0x094Du == buffer->cur (1).codepoint && |
| buffer->idx + 2 < count && |
| 0x0907u == buffer->cur (2).codepoint) |
| { |
| (void) buffer->next_glyph (); |
| matched = true; |
| } |
| break; |
| } |
| (void) buffer->next_glyph (); |
| if (matched) _output_with_dotted_circle (buffer); |
| } |
| break; |
| |
| case HB_SCRIPT_BENGALI: |
| for (buffer->idx = 0; buffer->idx + 1 < count && buffer->successful;) |
| { |
| bool matched = false; |
| switch (buffer->cur ().codepoint) |
| { |
| case 0x0985u: |
| matched = 0x09BEu == buffer->cur (1).codepoint; |
| break; |
| case 0x098Bu: |
| matched = 0x09C3u == buffer->cur (1).codepoint; |
| break; |
| case 0x098Cu: |
| matched = 0x09E2u == buffer->cur (1).codepoint; |
| break; |
| } |
| (void) buffer->next_glyph (); |
| if (matched) _output_with_dotted_circle (buffer); |
| } |
| break; |
| |
| case HB_SCRIPT_GURMUKHI: |
| for (buffer->idx = 0; buffer->idx + 1 < count && buffer->successful;) |
| { |
| bool matched = false; |
| switch (buffer->cur ().codepoint) |
| { |
| case 0x0A05u: |
| switch (buffer->cur (1).codepoint) |
| { |
| case 0x0A3Eu: case 0x0A48u: case 0x0A4Cu: |
| matched = true; |
| break; |
| } |
| break; |
| case 0x0A72u: |
| switch (buffer->cur (1).codepoint) |
| { |
| case 0x0A3Fu: case 0x0A40u: case 0x0A47u: |
| matched = true; |
| break; |
| } |
| break; |
| case 0x0A73u: |
| switch (buffer->cur (1).codepoint) |
| { |
| case 0x0A41u: case 0x0A42u: case 0x0A4Bu: |
| matched = true; |
| break; |
| } |
| break; |
| } |
| (void) buffer->next_glyph (); |
| if (matched) _output_with_dotted_circle (buffer); |
| } |
| break; |
| |
| case HB_SCRIPT_GUJARATI: |
| for (buffer->idx = 0; buffer->idx + 1 < count && buffer->successful;) |
| { |
| bool matched = false; |
| switch (buffer->cur ().codepoint) |
| { |
| case 0x0A85u: |
| switch (buffer->cur (1).codepoint) |
| { |
| case 0x0ABEu: case 0x0AC5u: case 0x0AC7u: case 0x0AC8u: |
| case 0x0AC9u: case 0x0ACBu: case 0x0ACCu: |
| matched = true; |
| break; |
| } |
| break; |
| case 0x0AC5u: |
| matched = 0x0ABEu == buffer->cur (1).codepoint; |
| break; |
| } |
| (void) buffer->next_glyph (); |
| if (matched) _output_with_dotted_circle (buffer); |
| } |
| break; |
| |
| case HB_SCRIPT_ORIYA: |
| for (buffer->idx = 0; buffer->idx + 1 < count && buffer->successful;) |
| { |
| bool matched = false; |
| switch (buffer->cur ().codepoint) |
| { |
| case 0x0B05u: |
| matched = 0x0B3Eu == buffer->cur (1).codepoint; |
| break; |
| case 0x0B0Fu: case 0x0B13u: |
| matched = 0x0B57u == buffer->cur (1).codepoint; |
| break; |
| } |
| (void) buffer->next_glyph (); |
| if (matched) _output_with_dotted_circle (buffer); |
| } |
| break; |
| |
| case HB_SCRIPT_TAMIL: |
| for (buffer->idx = 0; buffer->idx + 1 < count && buffer->successful;) |
| { |
| bool matched = false; |
| if (0x0B85u == buffer->cur ().codepoint && |
| 0x0BC2u == buffer->cur (1).codepoint) |
| { |
| matched = true; |
| } |
| (void) buffer->next_glyph (); |
| if (matched) _output_with_dotted_circle (buffer); |
| } |
| break; |
| |
| case HB_SCRIPT_TELUGU: |
| for (buffer->idx = 0; buffer->idx + 1 < count && buffer->successful;) |
| { |
| bool matched = false; |
| switch (buffer->cur ().codepoint) |
| { |
| case 0x0C12u: |
| switch (buffer->cur (1).codepoint) |
| { |
| case 0x0C4Cu: case 0x0C55u: |
| matched = true; |
| break; |
| } |
| break; |
| case 0x0C3Fu: case 0x0C46u: case 0x0C4Au: |
| matched = 0x0C55u == buffer->cur (1).codepoint; |
| break; |
| } |
| (void) buffer->next_glyph (); |
| if (matched) _output_with_dotted_circle (buffer); |
| } |
| break; |
| |
| case HB_SCRIPT_KANNADA: |
| for (buffer->idx = 0; buffer->idx + 1 < count && buffer->successful;) |
| { |
| bool matched = false; |
| switch (buffer->cur ().codepoint) |
| { |
| case 0x0C89u: case 0x0C8Bu: |
| matched = 0x0CBEu == buffer->cur (1).codepoint; |
| break; |
| case 0x0C92u: |
| matched = 0x0CCCu == buffer->cur (1).codepoint; |
| break; |
| } |
| (void) buffer->next_glyph (); |
| if (matched) _output_with_dotted_circle (buffer); |
| } |
| break; |
| |
| case HB_SCRIPT_MALAYALAM: |
| for (buffer->idx = 0; buffer->idx + 1 < count && buffer->successful;) |
| { |
| bool matched = false; |
| switch (buffer->cur ().codepoint) |
| { |
| case 0x0D07u: case 0x0D09u: |
| matched = 0x0D57u == buffer->cur (1).codepoint; |
| break; |
| case 0x0D0Eu: |
| matched = 0x0D46u == buffer->cur (1).codepoint; |
| break; |
| case 0x0D12u: |
| switch (buffer->cur (1).codepoint) |
| { |
| case 0x0D3Eu: case 0x0D57u: |
| matched = true; |
| break; |
| } |
| break; |
| } |
| (void) buffer->next_glyph (); |
| if (matched) _output_with_dotted_circle (buffer); |
| } |
| break; |
| |
| case HB_SCRIPT_SINHALA: |
| for (buffer->idx = 0; buffer->idx + 1 < count && buffer->successful;) |
| { |
| bool matched = false; |
| switch (buffer->cur ().codepoint) |
| { |
| case 0x0D85u: |
| switch (buffer->cur (1).codepoint) |
| { |
| case 0x0DCFu: case 0x0DD0u: case 0x0DD1u: |
| matched = true; |
| break; |
| } |
| break; |
| case 0x0D8Bu: case 0x0D8Fu: case 0x0D94u: |
| matched = 0x0DDFu == buffer->cur (1).codepoint; |
| break; |
| case 0x0D8Du: |
| matched = 0x0DD8u == buffer->cur (1).codepoint; |
| break; |
| case 0x0D91u: |
| switch (buffer->cur (1).codepoint) |
| { |
| case 0x0DCAu: case 0x0DD9u: case 0x0DDAu: case 0x0DDCu: |
| case 0x0DDDu: case 0x0DDEu: |
| matched = true; |
| break; |
| } |
| break; |
| } |
| (void) buffer->next_glyph (); |
| if (matched) _output_with_dotted_circle (buffer); |
| } |
| break; |
| |
| case HB_SCRIPT_BRAHMI: |
| for (buffer->idx = 0; buffer->idx + 1 < count && buffer->successful;) |
| { |
| bool matched = false; |
| switch (buffer->cur ().codepoint) |
| { |
| case 0x11005u: |
| matched = 0x11038u == buffer->cur (1).codepoint; |
| break; |
| case 0x1100Bu: |
| matched = 0x1103Eu == buffer->cur (1).codepoint; |
| break; |
| case 0x1100Fu: |
| matched = 0x11042u == buffer->cur (1).codepoint; |
| break; |
| } |
| (void) buffer->next_glyph (); |
| if (matched) _output_with_dotted_circle (buffer); |
| } |
| break; |
| |
| case HB_SCRIPT_KHOJKI: |
| for (buffer->idx = 0; buffer->idx + 1 < count && buffer->successful;) |
| { |
| bool matched = false; |
| switch (buffer->cur ().codepoint) |
| { |
| case 0x11200u: |
| switch (buffer->cur (1).codepoint) |
| { |
| case 0x1122Cu: case 0x11231u: case 0x11233u: |
| matched = true; |
| break; |
| } |
| break; |
| case 0x11206u: |
| matched = 0x1122Cu == buffer->cur (1).codepoint; |
| break; |
| case 0x1122Cu: |
| switch (buffer->cur (1).codepoint) |
| { |
| case 0x11230u: case 0x11231u: |
| matched = true; |
| break; |
| } |
| break; |
| case 0x11240u: |
| matched = 0x1122Eu == buffer->cur (1).codepoint; |
| break; |
| } |
| (void) buffer->next_glyph (); |
| if (matched) _output_with_dotted_circle (buffer); |
| } |
| break; |
| |
| case HB_SCRIPT_KHUDAWADI: |
| for (buffer->idx = 0; buffer->idx + 1 < count && buffer->successful;) |
| { |
| bool matched = false; |
| switch (buffer->cur ().codepoint) |
| { |
| case 0x112B0u: |
| switch (buffer->cur (1).codepoint) |
| { |
| case 0x112E0u: case 0x112E5u: case 0x112E6u: case 0x112E7u: |
| case 0x112E8u: |
| matched = true; |
| break; |
| } |
| break; |
| } |
| (void) buffer->next_glyph (); |
| if (matched) _output_with_dotted_circle (buffer); |
| } |
| break; |
| |
| case HB_SCRIPT_TIRHUTA: |
| for (buffer->idx = 0; buffer->idx + 1 < count && buffer->successful;) |
| { |
| bool matched = false; |
| switch (buffer->cur ().codepoint) |
| { |
| case 0x11481u: |
| matched = 0x114B0u == buffer->cur (1).codepoint; |
| break; |
| case 0x1148Bu: case 0x1148Du: |
| matched = 0x114BAu == buffer->cur (1).codepoint; |
| break; |
| case 0x114AAu: |
| switch (buffer->cur (1).codepoint) |
| { |
| case 0x114B5u: case 0x114B6u: |
| matched = true; |
| break; |
| } |
| break; |
| } |
| (void) buffer->next_glyph (); |
| if (matched) _output_with_dotted_circle (buffer); |
| } |
| break; |
| |
| case HB_SCRIPT_MODI: |
| for (buffer->idx = 0; buffer->idx + 1 < count && buffer->successful;) |
| { |
| bool matched = false; |
| switch (buffer->cur ().codepoint) |
| { |
| case 0x11600u: case 0x11601u: |
| switch (buffer->cur (1).codepoint) |
| { |
| case 0x11639u: case 0x1163Au: |
| matched = true; |
| break; |
| } |
| break; |
| } |
| (void) buffer->next_glyph (); |
| if (matched) _output_with_dotted_circle (buffer); |
| } |
| break; |
| |
| case HB_SCRIPT_TAKRI: |
| for (buffer->idx = 0; buffer->idx + 1 < count && buffer->successful;) |
| { |
| bool matched = false; |
| switch (buffer->cur ().codepoint) |
| { |
| case 0x11680u: |
| switch (buffer->cur (1).codepoint) |
| { |
| case 0x116ADu: case 0x116B4u: case 0x116B5u: |
| matched = true; |
| break; |
| } |
| break; |
| case 0x11686u: |
| matched = 0x116B2u == buffer->cur (1).codepoint; |
| break; |
| } |
| (void) buffer->next_glyph (); |
| if (matched) _output_with_dotted_circle (buffer); |
| } |
| break; |
| |
| default: |
| break; |
| } |
| buffer->sync (); |
| } |
| |
| |
| #endif |
| /* == End of generated functions == */ |