465 lines
11 KiB
C++
465 lines
11 KiB
C++
/* == Start of generated functions == */
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/*
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* The following functions are generated by running:
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*
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* ./gen-vowel-constraints.py ms-use/IndicShapingInvalidCluster.txt Scripts.txt
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*
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* on files with these headers:
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*
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* # IndicShapingInvalidCluster.txt
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* # Date: 2015-03-12, 21:17:00 GMT [AG]
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* # Date: 2019-11-08, 23:22:00 GMT [AG]
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*
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* # Scripts-13.0.0.txt
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* # Date: 2020-01-22, 00:07:43 GMT
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*/
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#include "hb.hh"
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#ifndef HB_NO_OT_SHAPE
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#include "hb-ot-shape-complex-vowel-constraints.hh"
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static void
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_output_dotted_circle (hb_buffer_t *buffer)
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{
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hb_glyph_info_t &dottedcircle = buffer->output_glyph (0x25CCu);
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_hb_glyph_info_reset_continuation (&dottedcircle);
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}
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static void
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_output_with_dotted_circle (hb_buffer_t *buffer)
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{
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_output_dotted_circle (buffer);
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buffer->next_glyph ();
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}
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void
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_hb_preprocess_text_vowel_constraints (const hb_ot_shape_plan_t *plan HB_UNUSED,
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hb_buffer_t *buffer,
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hb_font_t *font HB_UNUSED)
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{
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#ifdef HB_NO_OT_SHAPE_COMPLEX_VOWEL_CONSTRAINTS
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return;
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#endif
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if (buffer->flags & HB_BUFFER_FLAG_DO_NOT_INSERT_DOTTED_CIRCLE)
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return;
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/* UGLY UGLY UGLY business of adding dotted-circle in the middle of
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* vowel-sequences that look like another vowel. Data for each script
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* collected from the USE script development spec.
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*
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* https://github.com/harfbuzz/harfbuzz/issues/1019
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*/
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bool processed = false;
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buffer->clear_output ();
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unsigned int count = buffer->len;
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switch ((unsigned) buffer->props.script)
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{
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case HB_SCRIPT_DEVANAGARI:
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for (buffer->idx = 0; buffer->idx + 1 < count && buffer->successful;)
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{
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bool matched = false;
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switch (buffer->cur ().codepoint)
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{
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case 0x0905u:
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switch (buffer->cur (1).codepoint)
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{
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case 0x093Au: case 0x093Bu: case 0x093Eu: case 0x0945u:
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case 0x0946u: case 0x0949u: case 0x094Au: case 0x094Bu:
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case 0x094Cu: case 0x094Fu: case 0x0956u: case 0x0957u:
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matched = true;
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break;
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}
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break;
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case 0x0906u:
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switch (buffer->cur (1).codepoint)
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{
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case 0x093Au: case 0x0945u: case 0x0946u: case 0x0947u:
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case 0x0948u:
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matched = true;
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break;
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}
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break;
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case 0x0909u:
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matched = 0x0941u == buffer->cur (1).codepoint;
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break;
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case 0x090Fu:
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switch (buffer->cur (1).codepoint)
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{
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case 0x0945u: case 0x0946u: case 0x0947u:
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matched = true;
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break;
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}
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break;
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case 0x0930u:
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if (0x094Du == buffer->cur (1).codepoint &&
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buffer->idx + 2 < count &&
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0x0907u == buffer->cur (2).codepoint)
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{
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buffer->next_glyph ();
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matched = true;
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}
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break;
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}
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buffer->next_glyph ();
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if (matched) _output_with_dotted_circle (buffer);
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}
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processed = true;
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break;
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case HB_SCRIPT_BENGALI:
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for (buffer->idx = 0; buffer->idx + 1 < count && buffer->successful;)
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{
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bool matched = false;
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switch (buffer->cur ().codepoint)
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{
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case 0x0985u:
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matched = 0x09BEu == buffer->cur (1).codepoint;
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break;
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case 0x098Bu:
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matched = 0x09C3u == buffer->cur (1).codepoint;
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break;
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case 0x098Cu:
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matched = 0x09E2u == buffer->cur (1).codepoint;
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break;
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}
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buffer->next_glyph ();
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if (matched) _output_with_dotted_circle (buffer);
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}
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processed = true;
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break;
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case HB_SCRIPT_GURMUKHI:
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for (buffer->idx = 0; buffer->idx + 1 < count && buffer->successful;)
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{
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bool matched = false;
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switch (buffer->cur ().codepoint)
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{
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case 0x0A05u:
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switch (buffer->cur (1).codepoint)
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{
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case 0x0A3Eu: case 0x0A48u: case 0x0A4Cu:
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matched = true;
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break;
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}
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break;
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case 0x0A72u:
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switch (buffer->cur (1).codepoint)
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{
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case 0x0A3Fu: case 0x0A40u: case 0x0A47u:
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matched = true;
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break;
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}
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break;
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case 0x0A73u:
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switch (buffer->cur (1).codepoint)
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{
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case 0x0A41u: case 0x0A42u: case 0x0A4Bu:
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matched = true;
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break;
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}
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break;
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}
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buffer->next_glyph ();
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if (matched) _output_with_dotted_circle (buffer);
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}
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processed = true;
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break;
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case HB_SCRIPT_GUJARATI:
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for (buffer->idx = 0; buffer->idx + 1 < count && buffer->successful;)
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{
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bool matched = false;
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switch (buffer->cur ().codepoint)
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{
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case 0x0A85u:
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switch (buffer->cur (1).codepoint)
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{
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case 0x0ABEu: case 0x0AC5u: case 0x0AC7u: case 0x0AC8u:
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case 0x0AC9u: case 0x0ACBu: case 0x0ACCu:
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matched = true;
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break;
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}
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break;
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case 0x0AC5u:
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matched = 0x0ABEu == buffer->cur (1).codepoint;
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break;
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}
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buffer->next_glyph ();
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if (matched) _output_with_dotted_circle (buffer);
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}
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processed = true;
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break;
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case HB_SCRIPT_ORIYA:
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for (buffer->idx = 0; buffer->idx + 1 < count && buffer->successful;)
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{
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bool matched = false;
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switch (buffer->cur ().codepoint)
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{
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case 0x0B05u:
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matched = 0x0B3Eu == buffer->cur (1).codepoint;
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break;
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case 0x0B0Fu: case 0x0B13u:
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matched = 0x0B57u == buffer->cur (1).codepoint;
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break;
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}
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buffer->next_glyph ();
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if (matched) _output_with_dotted_circle (buffer);
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}
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processed = true;
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break;
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case HB_SCRIPT_TAMIL:
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for (buffer->idx = 0; buffer->idx + 1 < count && buffer->successful;)
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{
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bool matched = false;
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if (0x0B85u == buffer->cur ().codepoint &&
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0x0BC2u == buffer->cur (1).codepoint)
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{
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matched = true;
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}
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buffer->next_glyph ();
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if (matched) _output_with_dotted_circle (buffer);
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}
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processed = true;
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break;
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case HB_SCRIPT_TELUGU:
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for (buffer->idx = 0; buffer->idx + 1 < count && buffer->successful;)
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{
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bool matched = false;
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switch (buffer->cur ().codepoint)
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{
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case 0x0C12u:
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switch (buffer->cur (1).codepoint)
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{
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case 0x0C4Cu: case 0x0C55u:
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matched = true;
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break;
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}
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break;
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case 0x0C3Fu: case 0x0C46u: case 0x0C4Au:
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matched = 0x0C55u == buffer->cur (1).codepoint;
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break;
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}
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buffer->next_glyph ();
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if (matched) _output_with_dotted_circle (buffer);
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}
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processed = true;
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break;
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case HB_SCRIPT_KANNADA:
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for (buffer->idx = 0; buffer->idx + 1 < count && buffer->successful;)
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{
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bool matched = false;
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switch (buffer->cur ().codepoint)
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{
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case 0x0C89u: case 0x0C8Bu:
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matched = 0x0CBEu == buffer->cur (1).codepoint;
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break;
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case 0x0C92u:
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matched = 0x0CCCu == buffer->cur (1).codepoint;
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break;
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}
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buffer->next_glyph ();
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if (matched) _output_with_dotted_circle (buffer);
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}
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processed = true;
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break;
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case HB_SCRIPT_MALAYALAM:
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for (buffer->idx = 0; buffer->idx + 1 < count && buffer->successful;)
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{
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bool matched = false;
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switch (buffer->cur ().codepoint)
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{
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case 0x0D07u: case 0x0D09u:
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matched = 0x0D57u == buffer->cur (1).codepoint;
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break;
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case 0x0D0Eu:
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matched = 0x0D46u == buffer->cur (1).codepoint;
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break;
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case 0x0D12u:
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switch (buffer->cur (1).codepoint)
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{
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case 0x0D3Eu: case 0x0D57u:
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matched = true;
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break;
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}
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break;
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}
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buffer->next_glyph ();
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if (matched) _output_with_dotted_circle (buffer);
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}
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processed = true;
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break;
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case HB_SCRIPT_SINHALA:
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for (buffer->idx = 0; buffer->idx + 1 < count && buffer->successful;)
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{
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bool matched = false;
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switch (buffer->cur ().codepoint)
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{
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case 0x0D85u:
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switch (buffer->cur (1).codepoint)
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{
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case 0x0DCFu: case 0x0DD0u: case 0x0DD1u:
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matched = true;
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break;
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}
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break;
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case 0x0D8Bu: case 0x0D8Fu: case 0x0D94u:
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matched = 0x0DDFu == buffer->cur (1).codepoint;
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break;
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case 0x0D8Du:
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matched = 0x0DD8u == buffer->cur (1).codepoint;
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break;
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case 0x0D91u:
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switch (buffer->cur (1).codepoint)
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{
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case 0x0DCAu: case 0x0DD9u: case 0x0DDAu: case 0x0DDCu:
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case 0x0DDDu:
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matched = true;
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break;
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}
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break;
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}
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buffer->next_glyph ();
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if (matched) _output_with_dotted_circle (buffer);
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}
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processed = true;
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break;
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case HB_SCRIPT_BRAHMI:
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for (buffer->idx = 0; buffer->idx + 1 < count && buffer->successful;)
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{
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bool matched = false;
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switch (buffer->cur ().codepoint)
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{
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case 0x11005u:
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matched = 0x11038u == buffer->cur (1).codepoint;
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break;
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case 0x1100Bu:
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matched = 0x1103Eu == buffer->cur (1).codepoint;
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break;
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case 0x1100Fu:
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matched = 0x11042u == buffer->cur (1).codepoint;
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break;
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}
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buffer->next_glyph ();
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if (matched) _output_with_dotted_circle (buffer);
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}
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processed = true;
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break;
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case HB_SCRIPT_KHUDAWADI:
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for (buffer->idx = 0; buffer->idx + 1 < count && buffer->successful;)
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{
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bool matched = false;
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switch (buffer->cur ().codepoint)
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{
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case 0x112B0u:
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switch (buffer->cur (1).codepoint)
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{
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case 0x112E0u: case 0x112E5u: case 0x112E6u: case 0x112E7u:
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case 0x112E8u:
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matched = true;
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break;
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}
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break;
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}
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buffer->next_glyph ();
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if (matched) _output_with_dotted_circle (buffer);
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}
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processed = true;
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break;
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case HB_SCRIPT_TIRHUTA:
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for (buffer->idx = 0; buffer->idx + 1 < count && buffer->successful;)
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{
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bool matched = false;
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switch (buffer->cur ().codepoint)
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{
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case 0x11481u:
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matched = 0x114B0u == buffer->cur (1).codepoint;
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break;
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case 0x1148Bu: case 0x1148Du:
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matched = 0x114BAu == buffer->cur (1).codepoint;
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break;
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case 0x114AAu:
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switch (buffer->cur (1).codepoint)
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{
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case 0x114B5u: case 0x114B6u:
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matched = true;
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break;
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}
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break;
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}
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buffer->next_glyph ();
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if (matched) _output_with_dotted_circle (buffer);
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}
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processed = true;
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break;
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case HB_SCRIPT_MODI:
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for (buffer->idx = 0; buffer->idx + 1 < count && buffer->successful;)
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{
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bool matched = false;
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switch (buffer->cur ().codepoint)
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{
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case 0x11600u: case 0x11601u:
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switch (buffer->cur (1).codepoint)
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{
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case 0x11639u: case 0x1163Au:
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matched = true;
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break;
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}
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break;
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}
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buffer->next_glyph ();
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if (matched) _output_with_dotted_circle (buffer);
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}
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processed = true;
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break;
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case HB_SCRIPT_TAKRI:
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for (buffer->idx = 0; buffer->idx + 1 < count && buffer->successful;)
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{
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bool matched = false;
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switch (buffer->cur ().codepoint)
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{
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case 0x11680u:
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switch (buffer->cur (1).codepoint)
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{
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case 0x116ADu: case 0x116B4u: case 0x116B5u:
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matched = true;
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break;
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}
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break;
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case 0x11686u:
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matched = 0x116B2u == buffer->cur (1).codepoint;
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break;
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}
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buffer->next_glyph ();
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if (matched) _output_with_dotted_circle (buffer);
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}
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processed = true;
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break;
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default:
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break;
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}
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if (processed)
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{
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if (buffer->idx < count)
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buffer->next_glyph ();
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buffer->swap_buffers ();
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}
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}
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#endif
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/* == End of generated functions == */
|