[use] Prohibit visually ambiguous vowel sequences
diff --git a/src/Makefile.am b/src/Makefile.am index e0ea1c5..782992d 100644 --- a/src/Makefile.am +++ b/src/Makefile.am
@@ -295,6 +295,7 @@ gen-os2-unicode-ranges.py \ gen-tag-table.py \ gen-use-table.py \ + gen-vowel-constraints.py \ $(NULL) EXTRA_DIST += $(GENERATORS) @@ -316,13 +317,17 @@ $(AM_V_GEN) $(builddir)/$^ > $(srcdir)/hb-ot-shape-complex-use-table.cc \ || ($(RM) $(srcdir)/hb-ot-shape-complex-use-table.cc; false) +vowel-constraints: gen-vowel-constraints.py use Scripts.txt + $(AM_V_GEN) $(builddir)/$^ > $(srcdir)/hb-ot-shape-complex-vowel-constraints.hh \ + || ($(RM) $(srcdir)/hb-ot-shape-complex-vowel-constraints.hh; false) + emoji-table: gen-emoji-table.py emoji-data.txt $(AM_V_GEN) $(builddir)/$^ > $(srcdir)/hb-unicode-emoji-table.hh \ || ($(RM) $(srcdir)/hb-unicode-emoji-table.hh; false) built-sources: $(BUILT_SOURCES) -.PHONY: unicode-tables arabic-table indic-table tag-table use-table emoji-table built-sources +.PHONY: unicode-tables arabic-table indic-table tag-table use-table vowel-constraints emoji-table built-sources RAGEL_GENERATED = \ $(patsubst %,$(srcdir)/%,$(HB_BASE_RAGEL_GENERATED_sources)) \
diff --git a/src/Makefile.sources b/src/Makefile.sources index eed245b..b302910 100644 --- a/src/Makefile.sources +++ b/src/Makefile.sources
@@ -142,6 +142,7 @@ hb-ot-shape-complex-use.cc \ hb-ot-shape-complex-use.hh \ hb-ot-shape-complex-use-table.cc \ + hb-ot-shape-complex-vowel-constraints.hh \ hb-ot-shape-complex.hh \ hb-ot-shape-normalize.hh \ hb-ot-shape-normalize.cc \
diff --git a/src/gen-vowel-constraints.py b/src/gen-vowel-constraints.py new file mode 100755 index 0000000..bcb5d27 --- /dev/null +++ b/src/gen-vowel-constraints.py
@@ -0,0 +1,286 @@ +#!/usr/bin/python + +"""Generator of the function to prohibit certain vowel sequences. + +It creates ``preprocess_text_vowel_constraints``, which inserts dotted +circles into sequences prohibited by the USE script development spec. +This function should be used as the ``preprocess_text`` of an +``hb_ot_complex_shaper_t``. + +It also creates the helper function ``_output_with_dotted_circle``. +""" + +from __future__ import absolute_import, division, print_function, unicode_literals + +import collections +try: + from HTMLParser import HTMLParser + def write (s): + print (s.encode ('utf-8'), end='') +except ImportError: + from html.parser import HTMLParser + def write (s): + sys.stdout.flush () + sys.stdout.buffer.write (s.encode ('utf-8')) +import itertools +import io +import sys + +if len (sys.argv) != 3: + print ('usage: ./gen-vowel-constraints.py use Scripts.txt', file=sys.stderr) + sys.exit (1) + +try: + from html import unescape + def html_unescape (parser, entity): + return unescape (entity) +except ImportError: + def html_unescape (parser, entity): + return parser.unescape (entity) + +def expect (condition, message=None): + if not condition: + if message is None: + raise AssertionError + raise AssertionError (message) + +with io.open (sys.argv[2], encoding='utf-8') as f: + scripts_header = [f.readline () for i in range (2)] + scripts = {} + script_order = {} + for line in f: + j = line.find ('#') + if j >= 0: + line = line[:j] + fields = [x.strip () for x in line.split (';')] + if len (fields) == 1: + continue + uu = fields[0].split ('..') + start = int (uu[0], 16) + if len (uu) == 1: + end = start + else: + end = int (uu[1], 16) + script = fields[1] + for u in range (start, end + 1): + scripts[u] = script + if script not in script_order: + script_order[script] = start + +class ConstraintSet (object): + """A set of prohibited code point sequences. + + Args: + constraint (List[int]): A prohibited code point sequence. + + """ + def __init__ (self, constraint): + # Either a list or a dictionary. As a list of code points, it + # represents a prohibited code point sequence. As a dictionary, + # it represents a set of prohibited sequences, where each item + # represents the set of prohibited sequences starting with the + # key (a code point) concatenated with any of the values + # (ConstraintSets). + self._c = constraint + + def add (self, constraint): + """Add a constraint to this set.""" + if not constraint: + return + first = constraint[0] + rest = constraint[1:] + if isinstance (self._c, list): + if constraint == self._c[:len (constraint)]: + self._c = constraint + elif self._c != constraint[:len (self._c)]: + self._c = {self._c[0]: ConstraintSet (self._c[1:])} + if isinstance (self._c, dict): + if first in self._c: + self._c[first].add (rest) + else: + self._c[first] = ConstraintSet (rest) + + def _indent (self, depth): + return (' ' * depth).replace (' ', '\t') + + def __str__ (self, index=0, depth=4): + s = [] + indent = self._indent (depth) + if isinstance (self._c, list): + if len (self._c) == 0: + s.append ('{}matched = true;\n'.format (indent)) + elif len (self._c) == 1: + s.append ('{}matched = 0x{:04X}u == buffer->cur ({}).codepoint;\n'.format (indent, next (iter (self._c)), index or '')) + else: + s.append ('{}if (0x{:04X}u == buffer->cur ({}).codepoint &&\n'.format (indent, self._c[0], index)) + s.append ('{}buffer->idx + {} < count &&\n'.format (self._indent (depth + 2), len (self._c))) + for i, cp in enumerate (self._c[1:], start=1): + s.append ('{}0x{:04X}u == buffer->cur ({}).codepoint{}\n'.format ( + self._indent (depth + 2), cp, index + i, ')' if i == len (self._c) - 1 else ' &&')) + s.append ('{}{{\n'.format (indent)) + for i in range (len (self._c)): + s.append ('{}buffer->next_glyph ();\n'.format (self._indent (depth + 1))) + s.append ('{}buffer->output_glyph (0x25CCu);\n'.format (self._indent (depth + 1))) + s.append ('{}}}\n'.format (indent)) + else: + s.append ('{}switch (buffer->cur ({}).codepoint)\n'.format(indent, index or '')) + s.append ('{}{{\n'.format (indent)) + cases = collections.defaultdict (set) + for first, rest in sorted (self._c.items ()): + cases[rest.__str__ (index + 1, depth + 2)].add (first) + for body, labels in sorted (cases.items (), key=lambda b_ls: sorted (b_ls[1])[0]): + for i, cp in enumerate (sorted (labels)): + if i % 4 == 0: + s.append (self._indent (depth + 1)) + else: + s.append (' ') + s.append ('case 0x{:04X}u:{}'.format (cp, '\n' if i % 4 == 3 else '')) + if len (labels) % 4 != 0: + s.append ('\n') + s.append (body) + s.append ('{}break;\n'.format (self._indent (depth + 2))) + s.append ('{}}}\n'.format (indent)) + return ''.join (s) + +class USESpecParser (HTMLParser): + """A parser for the USE script development spec. + + Attributes: + header (str): The ``updated_at`` timestamp of the spec. + constraints (Mapping[str, ConstraintSet]): A map of script names + to the scripts' prohibited sequences. + """ + def __init__ (self): + HTMLParser.__init__ (self) + self.header = '' + self.constraints = {} + # Whether the next <code> contains the vowel constraints. + self._primed = False + # Whether the parser is in the <code> element with the constraints. + self._in_constraints = False + # The text of the constraints. + self._constraints = '' + + def handle_starttag (self, tag, attrs): + if tag == 'meta': + for attr, value in attrs: + if attr == 'name' and value == 'updated_at': + self.header = self.get_starttag_text () + break + elif tag == 'a': + for attr, value in attrs: + if attr == 'id' and value == 'ivdvconstraints': + self._primed = True + break + elif self._primed and tag == 'code': + self._primed = False + self._in_constraints = True + + def handle_endtag (self, tag): + self._in_constraints = False + + def handle_data (self, data): + if self._in_constraints: + self._constraints += data + + def handle_charref (self, name): + self.handle_data (html_unescape (self, '&#%s;' % name)) + + def handle_entityref (self, name): + self.handle_data (html_unescape (self, '&%s;' % name)) + + def parse (self, filename): + """Parse the USE script development spec. + + Args: + filename (str): The file name of the spec. + """ + with io.open (filename, encoding='utf-8') as f: + self.feed (f.read ()) + expect (self.header, 'No header found') + for line in self._constraints.splitlines (): + constraint = [int (cp, 16) for cp in line.split (';')[0].strip ().split (' ')] + expect (2 <= len (constraint), 'Prohibited sequence is too short: {}'.format (constraint)) + script = scripts[constraint[0]] + if script in self.constraints: + self.constraints[script].add (constraint) + else: + self.constraints[script] = ConstraintSet (constraint) + expect (self.constraints, 'No constraints found') + +use_parser = USESpecParser () +use_parser.parse (sys.argv[1]) + +print ('/* == Start of generated functions == */') +print ('/*') +print (' * The following functions are generated by running:') +print (' *') +print (' * %s use Scripts.txt' % sys.argv[0]) +print (' *') +print (' * on files with these headers:') +print (' *') +print (' * %s' % use_parser.header.strip ()) +for line in scripts_header: + print (' * %s' % line.strip ()) +print (' */') +print () +print ('#ifndef HB_OT_SHAPE_COMPLEX_VOWEL_CONSTRAINTS_HH') +print ('#define HB_OT_SHAPE_COMPLEX_VOWEL_CONSTRAINTS_HH') +print () + +print ('static void') +print ('_output_with_dotted_circle (hb_buffer_t *buffer)') +print ('{') +print (' hb_glyph_info_t &dottedcircle = buffer->output_glyph (0x25CCu);') +print (' _hb_glyph_info_reset_continuation (&dottedcircle);') +print () +print (' buffer->next_glyph ();') +print ('}') +print () + +print ('static void') +print ('preprocess_text_vowel_constraints (const hb_ot_shape_plan_t *plan,') +print ('\t\t\t\t hb_buffer_t *buffer,') +print ('\t\t\t\t hb_font_t *font)') +print ('{') +print (' /* UGLY UGLY UGLY business of adding dotted-circle in the middle of') +print (' * vowel-sequences that look like another vowel. Data for each script') +print (' * collected from the USE script development spec.') +print (' *') +print (' * https://github.com/harfbuzz/harfbuzz/issues/1019') +print (' */') +print (' bool processed = false;') +print (' buffer->clear_output ();') +print (' unsigned int count = buffer->len;') +print (' switch ((unsigned) buffer->props.script)') +print (' {') + +for script, constraints in sorted (use_parser.constraints.items (), key=lambda s_c: script_order[s_c[0]]): + print (' case HB_SCRIPT_{}:'.format (script.upper ())) + print (' for (buffer->idx = 0; buffer->idx + 1 < count && buffer->successful;)') + print (' {') + print ('\tbool matched = false;') + write (str (constraints)) + print ('\tbuffer->next_glyph ();') + print ('\tif (matched) _output_with_dotted_circle (buffer);') + print (' }') + print (' processed = true;') + print (' break;') + print () + +print (' default:') +print (' break;') +print (' }') +print (' if (processed)') +print (' {') +print (' if (buffer->idx < count)') +print (' buffer->next_glyph ();') +print (' if (likely (buffer->successful))') +print (' buffer->swap_buffers ();') +print (' }') +print ('}') + +print () +print ('#endif /* HB_OT_SHAPE_COMPLEX_VOWEL_CONSTRAINTS_HH */') +print () +print ('/* == End of generated functions == */')
diff --git a/src/hb-ot-shape-complex-indic.cc b/src/hb-ot-shape-complex-indic.cc index f1ae303..092ac68 100644 --- a/src/hb-ot-shape-complex-indic.cc +++ b/src/hb-ot-shape-complex-indic.cc
@@ -25,6 +25,7 @@ */ #include "hb-ot-shape-complex-indic.hh" +#include "hb-ot-shape-complex-vowel-constraints.hh" #include "hb-ot-layout.hh" @@ -331,275 +332,6 @@ free (data); } -static void -_output_with_dotted_circle (hb_buffer_t *buffer) -{ - hb_glyph_info_t &dottedcircle = buffer->output_glyph (0x25CCu); - _hb_glyph_info_reset_continuation (&dottedcircle); - - buffer->next_glyph (); -} - -static void -preprocess_text_indic (const hb_ot_shape_plan_t *plan, - hb_buffer_t *buffer, - hb_font_t *font) -{ - /* 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 Unicode 11 book, tables named "Vowel Letters" with - * "Use" and "Do Not Use" columns. - * - * https://github.com/harfbuzz/harfbuzz/issues/1019 - */ - bool processed = false; - 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: - switch (buffer->cur(1).codepoint) - { - case 0x0941u: - matched = true; - break; - } - 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) - { - buffer->next_glyph (); - buffer->next_glyph (); - buffer->output_glyph (0x25CCu); - } - break; - } - buffer->next_glyph (); - if (matched) _output_with_dotted_circle (buffer); - } - processed = true; - 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 = 0x09BE == buffer->cur(1).codepoint; - break; - case 0x098Bu: - matched = 0x09C3 == buffer->cur(1).codepoint; - break; - case 0x098Cu: - matched = 0x09E2 == buffer->cur(1).codepoint; - break; - } - buffer->next_glyph (); - if (matched) _output_with_dotted_circle (buffer); - } - processed = true; - 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; - } - buffer->next_glyph (); - if (matched) _output_with_dotted_circle (buffer); - } - processed = true; - 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 = 0x0ABE == buffer->cur(1).codepoint; - break; - } - buffer->next_glyph (); - if (matched) _output_with_dotted_circle (buffer); - } - processed = true; - 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 = 0x0B3E == buffer->cur(1).codepoint; - break; - case 0x0B0Fu: case 0x0B13u: - matched = 0x0B57 == buffer->cur(1).codepoint; - break; - } - buffer->next_glyph (); - if (matched) _output_with_dotted_circle (buffer); - } - processed = true; - 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 0xC4Au: - matched = 0x0C55 == buffer->cur(1).codepoint; - break; - } - buffer->next_glyph (); - if (matched) _output_with_dotted_circle (buffer); - } - processed = true; - 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 = 0x0CBE == buffer->cur(1).codepoint; - break; - case 0x0C92u: - matched = 0x0CCC == buffer->cur(1).codepoint; - break; - } - buffer->next_glyph (); - if (matched) _output_with_dotted_circle (buffer); - } - processed = true; - 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 = 0x0D57 == buffer->cur(1).codepoint; - break; - case 0x0D0Eu: - matched = 0x0D46 == buffer->cur(1).codepoint; - break; - case 0x0D12u: - switch (buffer->cur(1).codepoint) - { - case 0x0D3Eu: case 0x0D57u: - matched = true; - break; - } - break; - } - buffer->next_glyph (); - if (matched) _output_with_dotted_circle (buffer); - } - processed = true; - break; - - default: - break; - } - if (processed) - { - if (buffer->idx < count) - buffer->next_glyph (); - if (likely (buffer->successful)) - buffer->swap_buffers (); - } -} - static indic_position_t consonant_position_from_face (const indic_shape_plan_t *indic_plan, const hb_codepoint_t consonant, @@ -1884,7 +1616,7 @@ override_features_indic, data_create_indic, data_destroy_indic, - preprocess_text_indic, + preprocess_text_vowel_constraints, nullptr, /* postprocess_glyphs */ HB_OT_SHAPE_NORMALIZATION_MODE_COMPOSED_DIACRITICS_NO_SHORT_CIRCUIT, decompose_indic,
diff --git a/src/hb-ot-shape-complex-use.cc b/src/hb-ot-shape-complex-use.cc index f9a580c..8c44fe0 100644 --- a/src/hb-ot-shape-complex-use.cc +++ b/src/hb-ot-shape-complex-use.cc
@@ -28,6 +28,7 @@ #include "hb-ot-shape-complex-use.hh" #include "hb-ot-shape-complex-arabic.hh" +#include "hb-ot-shape-complex-vowel-constraints.hh" /* buffer var allocations */ #define use_category() complex_var_u8_0() @@ -591,7 +592,7 @@ nullptr, /* override_features */ data_create_use, data_destroy_use, - nullptr, /* preprocess_text */ + preprocess_text_vowel_constraints, nullptr, /* postprocess_glyphs */ HB_OT_SHAPE_NORMALIZATION_MODE_COMPOSED_DIACRITICS_NO_SHORT_CIRCUIT, nullptr, /* decompose */
diff --git a/src/hb-ot-shape-complex-vowel-constraints.hh b/src/hb-ot-shape-complex-vowel-constraints.hh new file mode 100644 index 0000000..1b07c2f --- /dev/null +++ b/src/hb-ot-shape-complex-vowel-constraints.hh
@@ -0,0 +1,434 @@ +/* == Start of generated functions == */ +/* + * The following functions are generated by running: + * + * ./gen-vowel-constraints.py use Scripts.txt + * + * on files with these headers: + * + * <meta name="updated_at" content="2018-03-27 12:21 AM" /> + * # Scripts-11.0.0.txt + * # Date: 2018-02-21, 05:34:31 GMT + */ + +#ifndef HB_OT_SHAPE_COMPLEX_VOWEL_CONSTRAINTS_HH +#define HB_OT_SHAPE_COMPLEX_VOWEL_CONSTRAINTS_HH + +static void +_output_with_dotted_circle (hb_buffer_t *buffer) +{ + hb_glyph_info_t &dottedcircle = buffer->output_glyph (0x25CCu); + _hb_glyph_info_reset_continuation (&dottedcircle); + + buffer->next_glyph (); +} + +static void +preprocess_text_vowel_constraints (const hb_ot_shape_plan_t *plan, + hb_buffer_t *buffer, + hb_font_t *font) +{ + /* 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 + */ + bool processed = false; + 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) + { + buffer->next_glyph (); + buffer->next_glyph (); + buffer->output_glyph (0x25CCu); + } + break; + } + buffer->next_glyph (); + if (matched) _output_with_dotted_circle (buffer); + } + processed = true; + 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; + } + buffer->next_glyph (); + if (matched) _output_with_dotted_circle (buffer); + } + processed = true; + 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; + } + buffer->next_glyph (); + if (matched) _output_with_dotted_circle (buffer); + } + processed = true; + 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; + } + buffer->next_glyph (); + if (matched) _output_with_dotted_circle (buffer); + } + processed = true; + 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; + } + buffer->next_glyph (); + if (matched) _output_with_dotted_circle (buffer); + } + processed = true; + 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; + } + buffer->next_glyph (); + if (matched) _output_with_dotted_circle (buffer); + } + processed = true; + 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; + } + buffer->next_glyph (); + if (matched) _output_with_dotted_circle (buffer); + } + processed = true; + 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; + } + buffer->next_glyph (); + if (matched) _output_with_dotted_circle (buffer); + } + processed = true; + 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: + matched = true; + break; + } + break; + } + buffer->next_glyph (); + if (matched) _output_with_dotted_circle (buffer); + } + processed = true; + 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; + } + buffer->next_glyph (); + if (matched) _output_with_dotted_circle (buffer); + } + processed = true; + 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; + } + buffer->next_glyph (); + if (matched) _output_with_dotted_circle (buffer); + } + processed = true; + 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; + } + buffer->next_glyph (); + if (matched) _output_with_dotted_circle (buffer); + } + processed = true; + 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; + } + buffer->next_glyph (); + if (matched) _output_with_dotted_circle (buffer); + } + processed = true; + 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; + } + buffer->next_glyph (); + if (matched) _output_with_dotted_circle (buffer); + } + processed = true; + break; + + default: + break; + } + if (processed) + { + if (buffer->idx < count) + buffer->next_glyph (); + if (likely (buffer->successful)) + buffer->swap_buffers (); + } +} + +#endif /* HB_OT_SHAPE_COMPLEX_VOWEL_CONSTRAINTS_HH */ + +/* == End of generated functions == */