Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 1 | #!/usr/bin/python |
| 2 | |
| 3 | # Python OpenType Layout Subsetter |
Behdad Esfahbod | 0fe6a51 | 2013-07-23 11:17:35 -0400 | [diff] [blame] | 4 | # |
| 5 | # Copyright 2013 Google, Inc. All Rights Reserved. |
| 6 | # |
| 7 | # Licensed under the Apache License, Version 2.0 (the "License"); |
| 8 | # you may not use this file except in compliance with the License. |
| 9 | # You may obtain a copy of the License at |
| 10 | # |
| 11 | # http://www.apache.org/licenses/LICENSE-2.0 |
| 12 | # |
| 13 | # Unless required by applicable law or agreed to in writing, software |
| 14 | # distributed under the License is distributed on an "AS IS" BASIS, |
| 15 | # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 16 | # See the License for the specific language governing permissions and |
| 17 | # limitations under the License. |
| 18 | # |
| 19 | # Google Author(s): Behdad Esfahbod |
| 20 | # |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 21 | |
Behdad Esfahbod | fa3bc5e | 2013-07-24 14:37:58 -0400 | [diff] [blame] | 22 | # Try running on PyPy |
| 23 | try: |
| 24 | import numpypy |
| 25 | except ImportError: |
| 26 | pass |
| 27 | |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 28 | import fontTools.ttx |
Behdad Esfahbod | 4cf7a80 | 2013-07-24 16:08:35 -0400 | [diff] [blame] | 29 | import struct |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 30 | |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 31 | |
Behdad Esfahbod | 02b9206 | 2013-07-21 18:40:59 -0400 | [diff] [blame] | 32 | def add_method (*clazzes): |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 33 | def wrapper(method): |
Behdad Esfahbod | 02b9206 | 2013-07-21 18:40:59 -0400 | [diff] [blame] | 34 | for clazz in clazzes: |
Behdad Esfahbod | c0d5959 | 2013-07-24 14:41:47 -0400 | [diff] [blame] | 35 | assert clazz.__name__ != 'DefaultTable', 'Oops, table class not found.' |
Behdad Esfahbod | 02b9206 | 2013-07-21 18:40:59 -0400 | [diff] [blame] | 36 | setattr (clazz, method.func_name, method) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 37 | return wrapper |
| 38 | |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 39 | def unique_sorted (l): |
Behdad Esfahbod | 2d9a096 | 2013-07-31 13:33:31 -0400 | [diff] [blame] | 40 | return sorted (set (l)) |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 41 | |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 42 | def safeEval(data, eval=eval): |
| 43 | """A (kindof) safe replacement for eval.""" |
| 44 | return eval(data, {"__builtins__":{}}, {}) |
| 45 | |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 46 | |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 47 | @add_method(fontTools.ttLib.tables.otTables.Coverage) |
Behdad Esfahbod | 327dcc3 | 2013-07-31 13:50:51 -0400 | [diff] [blame] | 48 | def intersect (self, glyphs): |
Behdad Esfahbod | 610b055 | 2013-07-23 14:52:18 -0400 | [diff] [blame] | 49 | "Returns ascending list of matching coverage values." |
| 50 | return [i for (i,g) in enumerate (self.glyphs) if g in glyphs] |
| 51 | |
| 52 | @add_method(fontTools.ttLib.tables.otTables.Coverage) |
Behdad Esfahbod | 849d25c | 2013-08-12 19:24:24 -0400 | [diff] [blame] | 53 | def intersect_glyphs (self, glyphs): |
| 54 | "Returns set of intersecting glyphs." |
| 55 | return set (g for g in self.glyphs if g in glyphs) |
| 56 | |
| 57 | @add_method(fontTools.ttLib.tables.otTables.Coverage) |
Behdad Esfahbod | 327dcc3 | 2013-07-31 13:50:51 -0400 | [diff] [blame] | 58 | def subset (self, glyphs): |
Behdad Esfahbod | d821ea0 | 2013-07-23 10:50:43 -0400 | [diff] [blame] | 59 | "Returns ascending list of remaining coverage values." |
Behdad Esfahbod | 327dcc3 | 2013-07-31 13:50:51 -0400 | [diff] [blame] | 60 | indices = self.intersect (glyphs) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 61 | self.glyphs = [g for g in self.glyphs if g in glyphs] |
| 62 | return indices |
Behdad Esfahbod | d1d41bc | 2013-07-21 23:15:32 -0400 | [diff] [blame] | 63 | |
Behdad Esfahbod | 1437426 | 2013-08-08 22:26:49 -0400 | [diff] [blame] | 64 | @add_method(fontTools.ttLib.tables.otTables.Coverage) |
| 65 | def remap (self, coverage_map): |
| 66 | "Remaps coverage." |
| 67 | self.glyphs = [self.glyphs[i] for i in coverage_map] |
| 68 | |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 69 | @add_method(fontTools.ttLib.tables.otTables.ClassDef) |
Behdad Esfahbod | 327dcc3 | 2013-07-31 13:50:51 -0400 | [diff] [blame] | 70 | def intersect (self, glyphs): |
Behdad Esfahbod | e10803e | 2013-08-08 21:09:27 -0400 | [diff] [blame] | 71 | "Returns ascending list of matching class values." |
Behdad Esfahbod | a1e0f13 | 2013-08-08 21:12:45 -0400 | [diff] [blame] | 72 | return unique_sorted (([0] if any (g not in self.classDefs for g in glyphs) else []) + \ |
Behdad Esfahbod | e10803e | 2013-08-08 21:09:27 -0400 | [diff] [blame] | 73 | [v for g,v in self.classDefs.items() if g in glyphs]) |
Behdad Esfahbod | b8d5588 | 2013-07-23 22:17:39 -0400 | [diff] [blame] | 74 | |
| 75 | @add_method(fontTools.ttLib.tables.otTables.ClassDef) |
Behdad Esfahbod | 849d25c | 2013-08-12 19:24:24 -0400 | [diff] [blame] | 76 | def intersect_class (self, glyphs, klass): |
| 77 | "Returns set of glyphs matching class." |
Behdad Esfahbod | 0befd6b | 2013-08-05 22:47:14 -0400 | [diff] [blame] | 78 | if klass == 0: |
Behdad Esfahbod | 849d25c | 2013-08-12 19:24:24 -0400 | [diff] [blame] | 79 | return set (g for g in glyphs if g not in self.classDefs) |
| 80 | return set (g for g,v in self.classDefs.items() if v == klass and g in glyphs) |
Behdad Esfahbod | b8d5588 | 2013-07-23 22:17:39 -0400 | [diff] [blame] | 81 | |
| 82 | @add_method(fontTools.ttLib.tables.otTables.ClassDef) |
Behdad Esfahbod | 327dcc3 | 2013-07-31 13:50:51 -0400 | [diff] [blame] | 83 | def subset (self, glyphs, remap=False): |
Behdad Esfahbod | a1e0f13 | 2013-08-08 21:12:45 -0400 | [diff] [blame] | 84 | "Returns ascending list of remaining classes." |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 85 | self.classDefs = {g:v for g,v in self.classDefs.items() if g in glyphs} |
Behdad Esfahbod | a1e0f13 | 2013-08-08 21:12:45 -0400 | [diff] [blame] | 86 | # Note: while class 0 has the special meaning of "not matched", if no glyph will |
| 87 | # ever /not match/, we can optimize class 0 out too. |
| 88 | indices = unique_sorted (([0] if any (g not in self.classDefs for g in glyphs) else []) + \ |
| 89 | self.classDefs.values ()) |
Behdad Esfahbod | de71dca | 2013-07-24 12:40:54 -0400 | [diff] [blame] | 90 | if remap: |
| 91 | self.remap (indices) |
| 92 | return indices |
Behdad Esfahbod | 4aa6ce3 | 2013-07-22 12:15:36 -0400 | [diff] [blame] | 93 | |
| 94 | @add_method(fontTools.ttLib.tables.otTables.ClassDef) |
| 95 | def remap (self, class_map): |
| 96 | "Remaps classes." |
| 97 | self.classDefs = {g:class_map.index (v) for g,v in self.classDefs.items()} |
Behdad Esfahbod | d1d41bc | 2013-07-21 23:15:32 -0400 | [diff] [blame] | 98 | |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 99 | @add_method(fontTools.ttLib.tables.otTables.SingleSubst) |
Behdad Esfahbod | 1d4fa13 | 2013-08-08 22:59:32 -0400 | [diff] [blame] | 100 | def closure_glyphs (self, s, cur_glyphs=None): |
| 101 | if cur_glyphs == None: cur_glyphs = s.glyphs |
Behdad Esfahbod | 610b055 | 2013-07-23 14:52:18 -0400 | [diff] [blame] | 102 | if self.Format in [1, 2]: |
Behdad Esfahbod | 033dfcd | 2013-08-13 11:40:50 -0400 | [diff] [blame] | 103 | s.glyphs.update (v for g,v in self.mapping.items() if g in cur_glyphs) |
Behdad Esfahbod | 610b055 | 2013-07-23 14:52:18 -0400 | [diff] [blame] | 104 | else: |
| 105 | assert 0, "unknown format: %s" % self.Format |
| 106 | |
| 107 | @add_method(fontTools.ttLib.tables.otTables.SingleSubst) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 108 | def subset_glyphs (self, s): |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 109 | if self.Format in [1, 2]: |
Behdad Esfahbod | 1437426 | 2013-08-08 22:26:49 -0400 | [diff] [blame] | 110 | self.mapping = {g:v for g,v in self.mapping.items() if g in s.glyphs and v in s.glyphs} |
Behdad Esfahbod | 4027dd8 | 2013-07-23 10:56:04 -0400 | [diff] [blame] | 111 | return bool (self.mapping) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 112 | else: |
| 113 | assert 0, "unknown format: %s" % self.Format |
| 114 | |
| 115 | @add_method(fontTools.ttLib.tables.otTables.MultipleSubst) |
Behdad Esfahbod | 1d4fa13 | 2013-08-08 22:59:32 -0400 | [diff] [blame] | 116 | def closure_glyphs (self, s, cur_glyphs=None): |
| 117 | if cur_glyphs == None: cur_glyphs = s.glyphs |
Behdad Esfahbod | 610b055 | 2013-07-23 14:52:18 -0400 | [diff] [blame] | 118 | if self.Format == 1: |
Behdad Esfahbod | 1d4fa13 | 2013-08-08 22:59:32 -0400 | [diff] [blame] | 119 | indices = self.Coverage.intersect (cur_glyphs) |
Behdad Esfahbod | 033dfcd | 2013-08-13 11:40:50 -0400 | [diff] [blame] | 120 | s.glyphs.update (*(self.Sequence[i].Substitute for i in indices)) |
Behdad Esfahbod | 610b055 | 2013-07-23 14:52:18 -0400 | [diff] [blame] | 121 | else: |
| 122 | assert 0, "unknown format: %s" % self.Format |
| 123 | |
| 124 | @add_method(fontTools.ttLib.tables.otTables.MultipleSubst) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 125 | def subset_glyphs (self, s): |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 126 | if self.Format == 1: |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 127 | indices = self.Coverage.subset (s.glyphs) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 128 | self.Sequence = [self.Sequence[i] for i in indices] |
Behdad Esfahbod | 1437426 | 2013-08-08 22:26:49 -0400 | [diff] [blame] | 129 | # Now drop rules generating glyphs we don't want |
| 130 | indices = [i for i,seq in enumerate (self.Sequence) \ |
| 131 | if all (sub in s.glyphs for sub in seq.Substitute)] |
| 132 | self.Sequence = [self.Sequence[i] for i in indices] |
| 133 | self.Coverage.remap (indices) |
Behdad Esfahbod | d1d41bc | 2013-07-21 23:15:32 -0400 | [diff] [blame] | 134 | self.SequenceCount = len (self.Sequence) |
Behdad Esfahbod | 4027dd8 | 2013-07-23 10:56:04 -0400 | [diff] [blame] | 135 | return bool (self.SequenceCount) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 136 | else: |
| 137 | assert 0, "unknown format: %s" % self.Format |
| 138 | |
| 139 | @add_method(fontTools.ttLib.tables.otTables.AlternateSubst) |
Behdad Esfahbod | 1d4fa13 | 2013-08-08 22:59:32 -0400 | [diff] [blame] | 140 | def closure_glyphs (self, s, cur_glyphs=None): |
| 141 | if cur_glyphs == None: cur_glyphs = s.glyphs |
Behdad Esfahbod | 610b055 | 2013-07-23 14:52:18 -0400 | [diff] [blame] | 142 | if self.Format == 1: |
Behdad Esfahbod | 033dfcd | 2013-08-13 11:40:50 -0400 | [diff] [blame] | 143 | s.glyphs.update (*(vlist for g,vlist in self.alternates.items() if g in cur_glyphs)) |
Behdad Esfahbod | 610b055 | 2013-07-23 14:52:18 -0400 | [diff] [blame] | 144 | else: |
| 145 | assert 0, "unknown format: %s" % self.Format |
| 146 | |
| 147 | @add_method(fontTools.ttLib.tables.otTables.AlternateSubst) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 148 | def subset_glyphs (self, s): |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 149 | if self.Format == 1: |
Behdad Esfahbod | 1437426 | 2013-08-08 22:26:49 -0400 | [diff] [blame] | 150 | self.alternates = {g:vlist for g,vlist in self.alternates.items() \ |
| 151 | if g in s.glyphs and all (v in s.glyphs for v in vlist)} |
Behdad Esfahbod | 4027dd8 | 2013-07-23 10:56:04 -0400 | [diff] [blame] | 152 | return bool (self.alternates) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 153 | else: |
| 154 | assert 0, "unknown format: %s" % self.Format |
| 155 | |
| 156 | @add_method(fontTools.ttLib.tables.otTables.LigatureSubst) |
Behdad Esfahbod | 1d4fa13 | 2013-08-08 22:59:32 -0400 | [diff] [blame] | 157 | def closure_glyphs (self, s, cur_glyphs=None): |
| 158 | if cur_glyphs == None: cur_glyphs = s.glyphs |
Behdad Esfahbod | 610b055 | 2013-07-23 14:52:18 -0400 | [diff] [blame] | 159 | if self.Format == 1: |
Behdad Esfahbod | 033dfcd | 2013-08-13 11:40:50 -0400 | [diff] [blame] | 160 | s.glyphs.update (*([seq.LigGlyph for seq in seqs if all(c in s.glyphs for c in seq.Component)] |
| 161 | for g,seqs in self.ligatures.items() if g in cur_glyphs)) |
Behdad Esfahbod | 610b055 | 2013-07-23 14:52:18 -0400 | [diff] [blame] | 162 | else: |
| 163 | assert 0, "unknown format: %s" % self.Format |
| 164 | |
| 165 | @add_method(fontTools.ttLib.tables.otTables.LigatureSubst) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 166 | def subset_glyphs (self, s): |
Behdad Esfahbod | d1d41bc | 2013-07-21 23:15:32 -0400 | [diff] [blame] | 167 | if self.Format == 1: |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 168 | self.ligatures = {g:v for g,v in self.ligatures.items() if g in s.glyphs} |
Behdad Esfahbod | 1437426 | 2013-08-08 22:26:49 -0400 | [diff] [blame] | 169 | self.ligatures = {g:[seq for seq in seqs \ |
| 170 | if seq.LigGlyph in s.glyphs and \ |
| 171 | all(c in s.glyphs for c in seq.Component)] |
Behdad Esfahbod | d1d41bc | 2013-07-21 23:15:32 -0400 | [diff] [blame] | 172 | for g,seqs in self.ligatures.items()} |
| 173 | self.ligatures = {g:v for g,v in self.ligatures.items() if v} |
Behdad Esfahbod | 4027dd8 | 2013-07-23 10:56:04 -0400 | [diff] [blame] | 174 | return bool (self.ligatures) |
Behdad Esfahbod | d1d41bc | 2013-07-21 23:15:32 -0400 | [diff] [blame] | 175 | else: |
| 176 | assert 0, "unknown format: %s" % self.Format |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 177 | |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 178 | @add_method(fontTools.ttLib.tables.otTables.ReverseChainSingleSubst) |
Behdad Esfahbod | 1d4fa13 | 2013-08-08 22:59:32 -0400 | [diff] [blame] | 179 | def closure_glyphs (self, s, cur_glyphs=None): |
| 180 | if cur_glyphs == None: cur_glyphs = s.glyphs |
Behdad Esfahbod | 610b055 | 2013-07-23 14:52:18 -0400 | [diff] [blame] | 181 | if self.Format == 1: |
Behdad Esfahbod | 1d4fa13 | 2013-08-08 22:59:32 -0400 | [diff] [blame] | 182 | indices = self.Coverage.intersect (cur_glyphs) |
Behdad Esfahbod | 610b055 | 2013-07-23 14:52:18 -0400 | [diff] [blame] | 183 | if not indices or \ |
Behdad Esfahbod | 254442b | 2013-07-31 14:20:13 -0400 | [diff] [blame] | 184 | not all (c.intersect (s.glyphs) for c in self.LookAheadCoverage + self.BacktrackCoverage): |
Behdad Esfahbod | 033dfcd | 2013-08-13 11:40:50 -0400 | [diff] [blame] | 185 | return |
| 186 | s.glyphs.update (self.Substitute[i] for i in indices) |
Behdad Esfahbod | 610b055 | 2013-07-23 14:52:18 -0400 | [diff] [blame] | 187 | else: |
| 188 | assert 0, "unknown format: %s" % self.Format |
| 189 | |
| 190 | @add_method(fontTools.ttLib.tables.otTables.ReverseChainSingleSubst) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 191 | def subset_glyphs (self, s): |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 192 | if self.Format == 1: |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 193 | indices = self.Coverage.subset (s.glyphs) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 194 | self.Substitute = [self.Substitute[i] for i in indices] |
Behdad Esfahbod | 1437426 | 2013-08-08 22:26:49 -0400 | [diff] [blame] | 195 | # Now drop rules generating glyphs we don't want |
| 196 | indices = [i for i,sub in enumerate (self.Substitute) \ |
| 197 | if sub in s.glyphs] |
| 198 | self.Substitute = [self.Substitute[i] for i in indices] |
| 199 | self.Coverage.remap (indices) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 200 | self.GlyphCount = len (self.Substitute) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 201 | return bool (self.GlyphCount and all (c.subset (s.glyphs) for c in self.LookAheadCoverage + self.BacktrackCoverage)) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 202 | else: |
| 203 | assert 0, "unknown format: %s" % self.Format |
| 204 | |
| 205 | @add_method(fontTools.ttLib.tables.otTables.SinglePos) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 206 | def subset_glyphs (self, s): |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 207 | if self.Format == 1: |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 208 | return len (self.Coverage.subset (s.glyphs)) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 209 | elif self.Format == 2: |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 210 | indices = self.Coverage.subset (s.glyphs) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 211 | self.Value = [self.Value[i] for i in indices] |
| 212 | self.ValueCount = len (self.Value) |
Behdad Esfahbod | 4027dd8 | 2013-07-23 10:56:04 -0400 | [diff] [blame] | 213 | return bool (self.ValueCount) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 214 | else: |
| 215 | assert 0, "unknown format: %s" % self.Format |
| 216 | |
| 217 | @add_method(fontTools.ttLib.tables.otTables.PairPos) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 218 | def subset_glyphs (self, s): |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 219 | if self.Format == 1: |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 220 | indices = self.Coverage.subset (s.glyphs) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 221 | self.PairSet = [self.PairSet[i] for i in indices] |
| 222 | for p in self.PairSet: |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 223 | p.PairValueRecord = [r for r in p.PairValueRecord if r.SecondGlyph in s.glyphs] |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 224 | p.PairValueCount = len (p.PairValueRecord) |
Behdad Esfahbod | d1d41bc | 2013-07-21 23:15:32 -0400 | [diff] [blame] | 225 | self.PairSet = [p for p in self.PairSet if p.PairValueCount] |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 226 | self.PairSetCount = len (self.PairSet) |
Behdad Esfahbod | 4027dd8 | 2013-07-23 10:56:04 -0400 | [diff] [blame] | 227 | return bool (self.PairSetCount) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 228 | elif self.Format == 2: |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 229 | class1_map = self.ClassDef1.subset (s.glyphs, remap=True) |
| 230 | class2_map = self.ClassDef2.subset (s.glyphs, remap=True) |
Behdad Esfahbod | 4aa6ce3 | 2013-07-22 12:15:36 -0400 | [diff] [blame] | 231 | self.Class1Record = [self.Class1Record[i] for i in class1_map] |
| 232 | for c in self.Class1Record: |
| 233 | c.Class2Record = [c.Class2Record[i] for i in class2_map] |
| 234 | self.Class1Count = len (class1_map) |
| 235 | self.Class2Count = len (class2_map) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 236 | return bool (self.Class1Count and self.Class2Count and self.Coverage.subset (s.glyphs)) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 237 | else: |
| 238 | assert 0, "unknown format: %s" % self.Format |
| 239 | |
| 240 | @add_method(fontTools.ttLib.tables.otTables.CursivePos) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 241 | def subset_glyphs (self, s): |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 242 | if self.Format == 1: |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 243 | indices = self.Coverage.subset (s.glyphs) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 244 | self.EntryExitRecord = [self.EntryExitRecord[i] for i in indices] |
Behdad Esfahbod | d1d41bc | 2013-07-21 23:15:32 -0400 | [diff] [blame] | 245 | self.EntryExitCount = len (self.EntryExitRecord) |
Behdad Esfahbod | 4027dd8 | 2013-07-23 10:56:04 -0400 | [diff] [blame] | 246 | return bool (self.EntryExitCount) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 247 | else: |
| 248 | assert 0, "unknown format: %s" % self.Format |
| 249 | |
| 250 | @add_method(fontTools.ttLib.tables.otTables.MarkBasePos) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 251 | def subset_glyphs (self, s): |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 252 | if self.Format == 1: |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 253 | mark_indices = self.MarkCoverage.subset (s.glyphs) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 254 | self.MarkArray.MarkRecord = [self.MarkArray.MarkRecord[i] for i in mark_indices] |
| 255 | self.MarkArray.MarkCount = len (self.MarkArray.MarkRecord) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 256 | base_indices = self.BaseCoverage.subset (s.glyphs) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 257 | self.BaseArray.BaseRecord = [self.BaseArray.BaseRecord[i] for i in base_indices] |
| 258 | self.BaseArray.BaseCount = len (self.BaseArray.BaseRecord) |
Behdad Esfahbod | c6396b7 | 2013-07-22 12:31:33 -0400 | [diff] [blame] | 259 | # Prune empty classes |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 260 | class_indices = unique_sorted (v.Class for v in self.MarkArray.MarkRecord) |
Behdad Esfahbod | c6396b7 | 2013-07-22 12:31:33 -0400 | [diff] [blame] | 261 | self.ClassCount = len (class_indices) |
| 262 | for m in self.MarkArray.MarkRecord: |
| 263 | m.Class = class_indices.index (m.Class) |
| 264 | for b in self.BaseArray.BaseRecord: |
| 265 | b.BaseAnchor = [b.BaseAnchor[i] for i in class_indices] |
Behdad Esfahbod | 4027dd8 | 2013-07-23 10:56:04 -0400 | [diff] [blame] | 266 | return bool (self.ClassCount and self.MarkArray.MarkCount and self.BaseArray.BaseCount) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 267 | else: |
| 268 | assert 0, "unknown format: %s" % self.Format |
| 269 | |
| 270 | @add_method(fontTools.ttLib.tables.otTables.MarkLigPos) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 271 | def subset_glyphs (self, s): |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 272 | if self.Format == 1: |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 273 | mark_indices = self.MarkCoverage.subset (s.glyphs) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 274 | self.MarkArray.MarkRecord = [self.MarkArray.MarkRecord[i] for i in mark_indices] |
| 275 | self.MarkArray.MarkCount = len (self.MarkArray.MarkRecord) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 276 | ligature_indices = self.LigatureCoverage.subset (s.glyphs) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 277 | self.LigatureArray.LigatureAttach = [self.LigatureArray.LigatureAttach[i] for i in ligature_indices] |
| 278 | self.LigatureArray.LigatureCount = len (self.LigatureArray.LigatureAttach) |
Behdad Esfahbod | c6396b7 | 2013-07-22 12:31:33 -0400 | [diff] [blame] | 279 | # Prune empty classes |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 280 | class_indices = unique_sorted (v.Class for v in self.MarkArray.MarkRecord) |
Behdad Esfahbod | c6396b7 | 2013-07-22 12:31:33 -0400 | [diff] [blame] | 281 | self.ClassCount = len (class_indices) |
| 282 | for m in self.MarkArray.MarkRecord: |
| 283 | m.Class = class_indices.index (m.Class) |
| 284 | for l in self.LigatureArray.LigatureAttach: |
| 285 | for c in l.ComponentRecord: |
| 286 | c.LigatureAnchor = [c.LigatureAnchor[i] for i in class_indices] |
Behdad Esfahbod | 4027dd8 | 2013-07-23 10:56:04 -0400 | [diff] [blame] | 287 | return bool (self.ClassCount and self.MarkArray.MarkCount and self.LigatureArray.LigatureCount) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 288 | else: |
| 289 | assert 0, "unknown format: %s" % self.Format |
| 290 | |
| 291 | @add_method(fontTools.ttLib.tables.otTables.MarkMarkPos) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 292 | def subset_glyphs (self, s): |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 293 | if self.Format == 1: |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 294 | mark1_indices = self.Mark1Coverage.subset (s.glyphs) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 295 | self.Mark1Array.MarkRecord = [self.Mark1Array.MarkRecord[i] for i in mark1_indices] |
| 296 | self.Mark1Array.MarkCount = len (self.Mark1Array.MarkRecord) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 297 | mark2_indices = self.Mark2Coverage.subset (s.glyphs) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 298 | self.Mark2Array.Mark2Record = [self.Mark2Array.Mark2Record[i] for i in mark2_indices] |
| 299 | self.Mark2Array.MarkCount = len (self.Mark2Array.Mark2Record) |
Behdad Esfahbod | c6396b7 | 2013-07-22 12:31:33 -0400 | [diff] [blame] | 300 | # Prune empty classes |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 301 | class_indices = unique_sorted (v.Class for v in self.Mark1Array.MarkRecord) |
Behdad Esfahbod | c6396b7 | 2013-07-22 12:31:33 -0400 | [diff] [blame] | 302 | self.ClassCount = len (class_indices) |
| 303 | for m in self.Mark1Array.MarkRecord: |
| 304 | m.Class = class_indices.index (m.Class) |
| 305 | for b in self.Mark2Array.Mark2Record: |
| 306 | b.Mark2Anchor = [b.Mark2Anchor[i] for i in class_indices] |
Behdad Esfahbod | 4027dd8 | 2013-07-23 10:56:04 -0400 | [diff] [blame] | 307 | return bool (self.ClassCount and self.Mark1Array.MarkCount and self.Mark2Array.MarkCount) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 308 | else: |
| 309 | assert 0, "unknown format: %s" % self.Format |
| 310 | |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 311 | @add_method(fontTools.ttLib.tables.otTables.SingleSubst, |
Behdad Esfahbod | aeacc15 | 2013-08-12 20:24:33 -0400 | [diff] [blame] | 312 | fontTools.ttLib.tables.otTables.MultipleSubst, |
| 313 | fontTools.ttLib.tables.otTables.AlternateSubst, |
| 314 | fontTools.ttLib.tables.otTables.LigatureSubst, |
| 315 | fontTools.ttLib.tables.otTables.ReverseChainSingleSubst, |
| 316 | fontTools.ttLib.tables.otTables.SinglePos, |
| 317 | fontTools.ttLib.tables.otTables.PairPos, |
| 318 | fontTools.ttLib.tables.otTables.CursivePos, |
| 319 | fontTools.ttLib.tables.otTables.MarkBasePos, |
| 320 | fontTools.ttLib.tables.otTables.MarkLigPos, |
| 321 | fontTools.ttLib.tables.otTables.MarkMarkPos) |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 322 | def subset_lookups (self, lookup_indices): |
| 323 | pass |
| 324 | |
| 325 | @add_method(fontTools.ttLib.tables.otTables.SingleSubst, |
Behdad Esfahbod | aeacc15 | 2013-08-12 20:24:33 -0400 | [diff] [blame] | 326 | fontTools.ttLib.tables.otTables.MultipleSubst, |
| 327 | fontTools.ttLib.tables.otTables.AlternateSubst, |
| 328 | fontTools.ttLib.tables.otTables.LigatureSubst, |
| 329 | fontTools.ttLib.tables.otTables.ReverseChainSingleSubst, |
| 330 | fontTools.ttLib.tables.otTables.SinglePos, |
| 331 | fontTools.ttLib.tables.otTables.PairPos, |
| 332 | fontTools.ttLib.tables.otTables.CursivePos, |
| 333 | fontTools.ttLib.tables.otTables.MarkBasePos, |
| 334 | fontTools.ttLib.tables.otTables.MarkLigPos, |
| 335 | fontTools.ttLib.tables.otTables.MarkMarkPos) |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 336 | def collect_lookups (self): |
| 337 | return [] |
| 338 | |
Behdad Esfahbod | aeacc15 | 2013-08-12 20:24:33 -0400 | [diff] [blame] | 339 | @add_method(fontTools.ttLib.tables.otTables.SingleSubst, |
| 340 | fontTools.ttLib.tables.otTables.AlternateSubst, |
| 341 | fontTools.ttLib.tables.otTables.ReverseChainSingleSubst) |
| 342 | def may_have_non_1to1 (self): |
| 343 | return False |
| 344 | |
| 345 | @add_method(fontTools.ttLib.tables.otTables.MultipleSubst, |
| 346 | fontTools.ttLib.tables.otTables.LigatureSubst, |
| 347 | fontTools.ttLib.tables.otTables.ContextSubst, |
| 348 | fontTools.ttLib.tables.otTables.ChainContextSubst) |
| 349 | def may_have_non_1to1 (self): |
| 350 | return True |
| 351 | |
Behdad Esfahbod | 44c2b3c | 2013-07-23 16:00:32 -0400 | [diff] [blame] | 352 | @add_method(fontTools.ttLib.tables.otTables.ContextSubst, fontTools.ttLib.tables.otTables.ChainContextSubst, |
| 353 | fontTools.ttLib.tables.otTables.ContextPos, fontTools.ttLib.tables.otTables.ChainContextPos) |
| 354 | def __classify_context (self): |
Behdad Esfahbod | b178dca | 2013-07-23 22:51:50 -0400 | [diff] [blame] | 355 | |
| 356 | class ContextHelper: |
| 357 | def __init__ (self, klass, Format): |
| 358 | if klass.__name__.endswith ('Subst'): |
Behdad Esfahbod | 9e73572 | 2013-07-23 16:35:23 -0400 | [diff] [blame] | 359 | Typ = 'Sub' |
| 360 | Type = 'Subst' |
Behdad Esfahbod | 6870f8a | 2013-07-23 16:18:30 -0400 | [diff] [blame] | 361 | else: |
Behdad Esfahbod | 9e73572 | 2013-07-23 16:35:23 -0400 | [diff] [blame] | 362 | Typ = 'Pos' |
| 363 | Type = 'Pos' |
Behdad Esfahbod | b178dca | 2013-07-23 22:51:50 -0400 | [diff] [blame] | 364 | if klass.__name__.startswith ('Chain'): |
Behdad Esfahbod | 9e73572 | 2013-07-23 16:35:23 -0400 | [diff] [blame] | 365 | Chain = 'Chain' |
| 366 | else: |
| 367 | Chain = '' |
| 368 | ChainTyp = Chain+Typ |
| 369 | |
| 370 | self.Typ = Typ |
| 371 | self.Type = Type |
| 372 | self.Chain = Chain |
| 373 | self.ChainTyp = ChainTyp |
| 374 | |
| 375 | self.LookupRecord = Type+'LookupRecord' |
| 376 | |
Behdad Esfahbod | 452ab6c | 2013-07-23 22:57:43 -0400 | [diff] [blame] | 377 | if Format == 1: |
Behdad Esfahbod | 1d4fa13 | 2013-08-08 22:59:32 -0400 | [diff] [blame] | 378 | Coverage = lambda r: r.Coverage |
| 379 | ChainCoverage = lambda r: r.Coverage |
Behdad Esfahbod | 849d25c | 2013-08-12 19:24:24 -0400 | [diff] [blame] | 380 | ContextData = lambda r: (None,) |
| 381 | ChainContextData = lambda r: (None, None, None) |
| 382 | RuleData = lambda r: (r.Input,) |
| 383 | ChainRuleData = lambda r: (r.Backtrack, r.Input, r.LookAhead) |
Behdad Esfahbod | 44fc6f6 | 2013-07-24 11:24:39 -0400 | [diff] [blame] | 384 | SetRuleData = None |
| 385 | ChainSetRuleData = None |
Behdad Esfahbod | 452ab6c | 2013-07-23 22:57:43 -0400 | [diff] [blame] | 386 | elif Format == 2: |
Behdad Esfahbod | 1d4fa13 | 2013-08-08 22:59:32 -0400 | [diff] [blame] | 387 | Coverage = lambda r: r.Coverage |
| 388 | ChainCoverage = lambda r: r.Coverage |
Behdad Esfahbod | e3f2073 | 2013-07-24 11:26:43 -0400 | [diff] [blame] | 389 | ContextData = lambda r: (r.ClassDef,) |
| 390 | ChainContextData = lambda r: (r.LookAheadClassDef, r.InputClassDef, r.BacktrackClassDef) |
| 391 | RuleData = lambda r: (r.Class,) |
| 392 | ChainRuleData = lambda r: (r.LookAhead, r.Input, r.Backtrack) |
| 393 | def SetRuleData (r, d): (r.Class,) = d |
| 394 | def ChainSetRuleData (r, d): (r.LookAhead, r.Input, r.Backtrack) = d |
Behdad Esfahbod | 452ab6c | 2013-07-23 22:57:43 -0400 | [diff] [blame] | 395 | elif Format == 3: |
Behdad Esfahbod | 1d4fa13 | 2013-08-08 22:59:32 -0400 | [diff] [blame] | 396 | Coverage = lambda r: r.Coverage[0] |
| 397 | ChainCoverage = lambda r: r.InputCoverage[0] |
Behdad Esfahbod | 452ab6c | 2013-07-23 22:57:43 -0400 | [diff] [blame] | 398 | ContextData = None |
| 399 | ChainContextData = None |
| 400 | RuleData = lambda r: r.Coverage |
| 401 | ChainRuleData = lambda r: r.LookAheadCoverage + r.InputCoverage + r.BacktrackCoverage |
Behdad Esfahbod | 44fc6f6 | 2013-07-24 11:24:39 -0400 | [diff] [blame] | 402 | SetRuleData = None |
| 403 | ChainSetRuleData = None |
Behdad Esfahbod | 452ab6c | 2013-07-23 22:57:43 -0400 | [diff] [blame] | 404 | else: |
| 405 | assert 0, "unknown format: %s" % Format |
| 406 | |
Behdad Esfahbod | 1ab2dbf | 2013-07-23 17:17:21 -0400 | [diff] [blame] | 407 | if Chain: |
Behdad Esfahbod | 1d4fa13 | 2013-08-08 22:59:32 -0400 | [diff] [blame] | 408 | self.Coverage = ChainCoverage |
Behdad Esfahbod | 707a37a | 2013-07-23 21:08:26 -0400 | [diff] [blame] | 409 | self.ContextData = ChainContextData |
Behdad Esfahbod | b8d5588 | 2013-07-23 22:17:39 -0400 | [diff] [blame] | 410 | self.RuleData = ChainRuleData |
Behdad Esfahbod | 44fc6f6 | 2013-07-24 11:24:39 -0400 | [diff] [blame] | 411 | self.SetRuleData = ChainSetRuleData |
Behdad Esfahbod | 1ab2dbf | 2013-07-23 17:17:21 -0400 | [diff] [blame] | 412 | else: |
Behdad Esfahbod | 1d4fa13 | 2013-08-08 22:59:32 -0400 | [diff] [blame] | 413 | self.Coverage = Coverage |
Behdad Esfahbod | 707a37a | 2013-07-23 21:08:26 -0400 | [diff] [blame] | 414 | self.ContextData = ContextData |
Behdad Esfahbod | b8d5588 | 2013-07-23 22:17:39 -0400 | [diff] [blame] | 415 | self.RuleData = RuleData |
Behdad Esfahbod | 44fc6f6 | 2013-07-24 11:24:39 -0400 | [diff] [blame] | 416 | self.SetRuleData = SetRuleData |
Behdad Esfahbod | 9e73572 | 2013-07-23 16:35:23 -0400 | [diff] [blame] | 417 | |
Behdad Esfahbod | bac31f5 | 2013-07-23 23:00:39 -0400 | [diff] [blame] | 418 | if Format == 1: |
| 419 | self.Rule = ChainTyp+'Rule' |
| 420 | self.RuleCount = ChainTyp+'RuleCount' |
| 421 | self.RuleSet = ChainTyp+'RuleSet' |
| 422 | self.RuleSetCount = ChainTyp+'RuleSetCount' |
Behdad Esfahbod | 849d25c | 2013-08-12 19:24:24 -0400 | [diff] [blame] | 423 | self.Intersect = lambda glyphs, ContextData, RuleData: [RuleData] if RuleData in glyphs else [] |
Behdad Esfahbod | bac31f5 | 2013-07-23 23:00:39 -0400 | [diff] [blame] | 424 | elif Format == 2: |
| 425 | self.Rule = ChainTyp+'ClassRule' |
| 426 | self.RuleCount = ChainTyp+'ClassRuleCount' |
| 427 | self.RuleSet = ChainTyp+'ClassSet' |
| 428 | self.RuleSetCount = ChainTyp+'ClassSetCount' |
Behdad Esfahbod | 849d25c | 2013-08-12 19:24:24 -0400 | [diff] [blame] | 429 | self.Intersect = lambda glyphs, ContextData, RuleData: ContextData.intersect_class (glyphs, RuleData) |
Behdad Esfahbod | 8998700 | 2013-07-23 23:07:42 -0400 | [diff] [blame] | 430 | |
Behdad Esfahbod | bac31f5 | 2013-07-23 23:00:39 -0400 | [diff] [blame] | 431 | self.ClassDef = 'InputClassDef' if Chain else 'ClassDef' |
Behdad Esfahbod | 2710839 | 2013-07-23 16:40:47 -0400 | [diff] [blame] | 432 | |
Behdad Esfahbod | b178dca | 2013-07-23 22:51:50 -0400 | [diff] [blame] | 433 | if self.Format not in [1, 2, 3]: |
| 434 | return None # Don't shoot the messenger; let it go |
| 435 | if not hasattr (self.__class__, "__ContextHelpers"): |
| 436 | self.__class__.__ContextHelpers = {} |
| 437 | if self.Format not in self.__class__.__ContextHelpers: |
| 438 | self.__class__.__ContextHelpers[self.Format] = ContextHelper (self.__class__, self.Format) |
| 439 | return self.__class__.__ContextHelpers[self.Format] |
Behdad Esfahbod | 44c2b3c | 2013-07-23 16:00:32 -0400 | [diff] [blame] | 440 | |
Behdad Esfahbod | f2b6d9c | 2013-07-23 17:31:54 -0400 | [diff] [blame] | 441 | @add_method(fontTools.ttLib.tables.otTables.ContextSubst, fontTools.ttLib.tables.otTables.ChainContextSubst) |
Behdad Esfahbod | 1d4fa13 | 2013-08-08 22:59:32 -0400 | [diff] [blame] | 442 | def closure_glyphs (self, s, cur_glyphs=None): |
| 443 | if cur_glyphs == None: cur_glyphs = s.glyphs |
Behdad Esfahbod | 1ab2dbf | 2013-07-23 17:17:21 -0400 | [diff] [blame] | 444 | c = self.__classify_context () |
| 445 | |
Behdad Esfahbod | 1d4fa13 | 2013-08-08 22:59:32 -0400 | [diff] [blame] | 446 | indices = c.Coverage (self).intersect (s.glyphs) |
| 447 | if not indices: |
| 448 | return [] |
Behdad Esfahbod | 849d25c | 2013-08-12 19:24:24 -0400 | [diff] [blame] | 449 | cur_glyphs = c.Coverage (self).intersect_glyphs (s.glyphs); |
Behdad Esfahbod | 1d4fa13 | 2013-08-08 22:59:32 -0400 | [diff] [blame] | 450 | |
Behdad Esfahbod | 0077697 | 2013-07-23 15:33:00 -0400 | [diff] [blame] | 451 | if self.Format == 1: |
Behdad Esfahbod | 849d25c | 2013-08-12 19:24:24 -0400 | [diff] [blame] | 452 | ContextData = c.ContextData (self) |
Behdad Esfahbod | eeca982 | 2013-07-23 17:42:17 -0400 | [diff] [blame] | 453 | rss = getattr (self, c.RuleSet) |
Behdad Esfahbod | 849d25c | 2013-08-12 19:24:24 -0400 | [diff] [blame] | 454 | for i in indices: |
| 455 | if not rss[i]: continue |
| 456 | for r in getattr (rss[i], c.Rule): |
| 457 | if not r: continue |
| 458 | if all (all (c.Intersect (s.glyphs, cd, k) for k in klist) |
| 459 | for cd,klist in zip (ContextData, c.RuleData (r))): |
Behdad Esfahbod | aeacc15 | 2013-08-12 20:24:33 -0400 | [diff] [blame] | 460 | chaos = False |
Behdad Esfahbod | 849d25c | 2013-08-12 19:24:24 -0400 | [diff] [blame] | 461 | for ll in getattr (r, c.LookupRecord): |
| 462 | if not ll: continue |
| 463 | seqi = ll.SequenceIndex |
| 464 | if seqi == 0: |
| 465 | pos_glyphs = set (c.Coverage (self).glyphs[i]) |
| 466 | else: |
Behdad Esfahbod | aeacc15 | 2013-08-12 20:24:33 -0400 | [diff] [blame] | 467 | if chaos: |
| 468 | pos_glyphs = s.glyphs |
| 469 | else: |
| 470 | pos_glyphs = set (r.Input[seqi - 1]) |
Behdad Esfahbod | 849d25c | 2013-08-12 19:24:24 -0400 | [diff] [blame] | 471 | lookup = s.table.LookupList.Lookup[ll.LookupListIndex] |
Behdad Esfahbod | aeacc15 | 2013-08-12 20:24:33 -0400 | [diff] [blame] | 472 | chaos = chaos or lookup.may_have_non_1to1 () |
Behdad Esfahbod | 033dfcd | 2013-08-13 11:40:50 -0400 | [diff] [blame] | 473 | lookup.closure_glyphs (s, cur_glyphs=pos_glyphs) |
Behdad Esfahbod | 0077697 | 2013-07-23 15:33:00 -0400 | [diff] [blame] | 474 | elif self.Format == 2: |
Behdad Esfahbod | 849d25c | 2013-08-12 19:24:24 -0400 | [diff] [blame] | 475 | ClassDef = getattr (self, c.ClassDef) |
| 476 | indices = ClassDef.intersect (cur_glyphs) |
| 477 | ContextData = c.ContextData (self) |
Behdad Esfahbod | bac31f5 | 2013-07-23 23:00:39 -0400 | [diff] [blame] | 478 | rss = getattr (self, c.RuleSet) |
Behdad Esfahbod | 849d25c | 2013-08-12 19:24:24 -0400 | [diff] [blame] | 479 | for i in indices: |
| 480 | if not rss[i]: continue |
| 481 | for r in getattr (rss[i], c.Rule): |
| 482 | if not r: continue |
| 483 | if all (all (c.Intersect (s.glyphs, cd, k) for k in klist) |
| 484 | for cd,klist in zip (ContextData, c.RuleData (r))): |
Behdad Esfahbod | aeacc15 | 2013-08-12 20:24:33 -0400 | [diff] [blame] | 485 | chaos = False |
Behdad Esfahbod | 849d25c | 2013-08-12 19:24:24 -0400 | [diff] [blame] | 486 | for ll in getattr (r, c.LookupRecord): |
| 487 | if not ll: continue |
| 488 | seqi = ll.SequenceIndex |
| 489 | if seqi == 0: |
| 490 | pos_glyphs = ClassDef.intersect_class (cur_glyphs, i) |
| 491 | else: |
Behdad Esfahbod | aeacc15 | 2013-08-12 20:24:33 -0400 | [diff] [blame] | 492 | if chaos: |
| 493 | pos_glyphs = s.glyphs |
| 494 | else: |
| 495 | pos_glyphs = ClassDef.intersect_class (s.glyphs, r.Input[seqi - 1]) |
Behdad Esfahbod | 849d25c | 2013-08-12 19:24:24 -0400 | [diff] [blame] | 496 | lookup = s.table.LookupList.Lookup[ll.LookupListIndex] |
Behdad Esfahbod | aeacc15 | 2013-08-12 20:24:33 -0400 | [diff] [blame] | 497 | chaos = chaos or lookup.may_have_non_1to1 () |
Behdad Esfahbod | 033dfcd | 2013-08-13 11:40:50 -0400 | [diff] [blame] | 498 | lookup.closure_glyphs (s, cur_glyphs=pos_glyphs) |
Behdad Esfahbod | 0077697 | 2013-07-23 15:33:00 -0400 | [diff] [blame] | 499 | elif self.Format == 3: |
Behdad Esfahbod | 254442b | 2013-07-31 14:20:13 -0400 | [diff] [blame] | 500 | if not all (x.intersect (s.glyphs) for x in c.RuleData (self)): |
Behdad Esfahbod | 0077697 | 2013-07-23 15:33:00 -0400 | [diff] [blame] | 501 | return [] |
Behdad Esfahbod | 849d25c | 2013-08-12 19:24:24 -0400 | [diff] [blame] | 502 | r = self |
Behdad Esfahbod | aeacc15 | 2013-08-12 20:24:33 -0400 | [diff] [blame] | 503 | chaos = False |
Behdad Esfahbod | 849d25c | 2013-08-12 19:24:24 -0400 | [diff] [blame] | 504 | for ll in getattr (r, c.LookupRecord): |
| 505 | if not ll: continue |
| 506 | seqi = ll.SequenceIndex |
| 507 | if seqi == 0: |
| 508 | pos_glyphs = cur_glyphs |
| 509 | else: |
Behdad Esfahbod | aeacc15 | 2013-08-12 20:24:33 -0400 | [diff] [blame] | 510 | if chaos: |
| 511 | pos_glyphs = s.glyphs |
| 512 | else: |
| 513 | pos_glyphs = r.InputCoverage[seqi].intersect_glyphs (s.glyphs) |
Behdad Esfahbod | 849d25c | 2013-08-12 19:24:24 -0400 | [diff] [blame] | 514 | lookup = s.table.LookupList.Lookup[ll.LookupListIndex] |
Behdad Esfahbod | aeacc15 | 2013-08-12 20:24:33 -0400 | [diff] [blame] | 515 | chaos = chaos or lookup.may_have_non_1to1 () |
Behdad Esfahbod | 033dfcd | 2013-08-13 11:40:50 -0400 | [diff] [blame] | 516 | lookup.closure_glyphs (s, cur_glyphs=pos_glyphs) |
Behdad Esfahbod | 0077697 | 2013-07-23 15:33:00 -0400 | [diff] [blame] | 517 | else: |
| 518 | assert 0, "unknown format: %s" % self.Format |
| 519 | |
Behdad Esfahbod | cbba4a6 | 2013-07-23 17:27:18 -0400 | [diff] [blame] | 520 | @add_method(fontTools.ttLib.tables.otTables.ContextSubst, fontTools.ttLib.tables.otTables.ContextPos, |
| 521 | fontTools.ttLib.tables.otTables.ChainContextSubst, fontTools.ttLib.tables.otTables.ChainContextPos) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 522 | def subset_glyphs (self, s): |
Behdad Esfahbod | d8c7e10 | 2013-07-23 17:07:06 -0400 | [diff] [blame] | 523 | c = self.__classify_context () |
| 524 | |
Behdad Esfahbod | 02b9206 | 2013-07-21 18:40:59 -0400 | [diff] [blame] | 525 | if self.Format == 1: |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 526 | indices = self.Coverage.subset (s.glyphs) |
Behdad Esfahbod | d8c7e10 | 2013-07-23 17:07:06 -0400 | [diff] [blame] | 527 | rss = getattr (self, c.RuleSet) |
| 528 | rss = [rss[i] for i in indices] |
| 529 | for rs in rss: |
Behdad Esfahbod | 6c11b89 | 2013-08-12 15:41:30 -0400 | [diff] [blame] | 530 | if not rs: continue |
| 531 | ss = getattr (rs, c.Rule) |
| 532 | ss = [r for r in ss \ |
Behdad Esfahbod | 849d25c | 2013-08-12 19:24:24 -0400 | [diff] [blame] | 533 | if r and all (all (g in s.glyphs for g in glist) \ |
| 534 | for glist in c.RuleData (r))] |
Behdad Esfahbod | 6c11b89 | 2013-08-12 15:41:30 -0400 | [diff] [blame] | 535 | setattr (rs, c.Rule, ss) |
| 536 | setattr (rs, c.RuleCount, len (ss)) |
Behdad Esfahbod | cbba4a6 | 2013-07-23 17:27:18 -0400 | [diff] [blame] | 537 | # Prune empty subrulesets |
Behdad Esfahbod | 7c225a6 | 2013-07-23 21:33:13 -0400 | [diff] [blame] | 538 | rss = [rs for rs in rss if rs and getattr (rs, c.Rule)] |
Behdad Esfahbod | d8c7e10 | 2013-07-23 17:07:06 -0400 | [diff] [blame] | 539 | setattr (self, c.RuleSet, rss) |
| 540 | setattr (self, c.RuleSetCount, len (rss)) |
| 541 | return bool (rss) |
Behdad Esfahbod | 02b9206 | 2013-07-21 18:40:59 -0400 | [diff] [blame] | 542 | elif self.Format == 2: |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 543 | if not self.Coverage.subset (s.glyphs): |
Behdad Esfahbod | e9a3bd6 | 2013-07-23 22:41:11 -0400 | [diff] [blame] | 544 | return False |
Behdad Esfahbod | 1d4fa13 | 2013-08-08 22:59:32 -0400 | [diff] [blame] | 545 | indices = getattr (self, c.ClassDef).subset (self.Coverage.glyphs, remap=False) |
Behdad Esfahbod | bac31f5 | 2013-07-23 23:00:39 -0400 | [diff] [blame] | 546 | rss = getattr (self, c.RuleSet) |
Behdad Esfahbod | e9a3bd6 | 2013-07-23 22:41:11 -0400 | [diff] [blame] | 547 | rss = [rss[i] for i in indices] |
| 548 | ContextData = c.ContextData (self) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 549 | klass_maps = [x.subset (s.glyphs, remap=True) for x in ContextData] |
Behdad Esfahbod | e9a3bd6 | 2013-07-23 22:41:11 -0400 | [diff] [blame] | 550 | for rs in rss: |
Behdad Esfahbod | 6c11b89 | 2013-08-12 15:41:30 -0400 | [diff] [blame] | 551 | if not rs: continue |
| 552 | ss = getattr (rs, c.Rule) |
| 553 | ss = [r for r in ss \ |
| 554 | if r and all (all (k in klass_map for k in klist) \ |
| 555 | for klass_map,klist in zip (klass_maps, c.RuleData (r)))] |
| 556 | setattr (rs, c.Rule, ss) |
| 557 | setattr (rs, c.RuleCount, len (ss)) |
Behdad Esfahbod | e9a3bd6 | 2013-07-23 22:41:11 -0400 | [diff] [blame] | 558 | |
Behdad Esfahbod | 6c11b89 | 2013-08-12 15:41:30 -0400 | [diff] [blame] | 559 | # Remap rule classes |
| 560 | for r in ss: |
| 561 | c.SetRuleData (r, [[klass_map.index (k) for k in klist] \ |
| 562 | for klass_map,klist in zip (klass_maps, c.RuleData (r))]) |
Behdad Esfahbod | e9a3bd6 | 2013-07-23 22:41:11 -0400 | [diff] [blame] | 563 | # Prune empty subrulesets |
Behdad Esfahbod | bac31f5 | 2013-07-23 23:00:39 -0400 | [diff] [blame] | 564 | rss = [rs for rs in rss if rs and getattr (rs, c.Rule)] |
| 565 | setattr (self, c.RuleSet, rss) |
| 566 | setattr (self, c.RuleSetCount, len (rss)) |
Behdad Esfahbod | e9a3bd6 | 2013-07-23 22:41:11 -0400 | [diff] [blame] | 567 | return bool (rss) |
Behdad Esfahbod | 02b9206 | 2013-07-21 18:40:59 -0400 | [diff] [blame] | 568 | elif self.Format == 3: |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 569 | return all (x.subset (s.glyphs) for x in c.RuleData (self)) |
Behdad Esfahbod | 02b9206 | 2013-07-21 18:40:59 -0400 | [diff] [blame] | 570 | else: |
| 571 | assert 0, "unknown format: %s" % self.Format |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 572 | |
Behdad Esfahbod | 44c2b3c | 2013-07-23 16:00:32 -0400 | [diff] [blame] | 573 | @add_method(fontTools.ttLib.tables.otTables.ContextSubst, fontTools.ttLib.tables.otTables.ChainContextSubst, |
| 574 | fontTools.ttLib.tables.otTables.ContextPos, fontTools.ttLib.tables.otTables.ChainContextPos) |
Behdad Esfahbod | 59dfc13 | 2013-07-23 15:39:20 -0400 | [diff] [blame] | 575 | def subset_lookups (self, lookup_indices): |
Behdad Esfahbod | 6870f8a | 2013-07-23 16:18:30 -0400 | [diff] [blame] | 576 | c = self.__classify_context () |
Behdad Esfahbod | 44c2b3c | 2013-07-23 16:00:32 -0400 | [diff] [blame] | 577 | |
Behdad Esfahbod | 1f57363 | 2013-07-23 23:04:43 -0400 | [diff] [blame] | 578 | if self.Format in [1, 2]: |
Behdad Esfahbod | 9e73572 | 2013-07-23 16:35:23 -0400 | [diff] [blame] | 579 | for rs in getattr (self, c.RuleSet): |
Behdad Esfahbod | 6c11b89 | 2013-08-12 15:41:30 -0400 | [diff] [blame] | 580 | if not rs: continue |
| 581 | for r in getattr (rs, c.Rule): |
| 582 | if not r: continue |
| 583 | setattr (r, c.LookupRecord, [ll for ll in getattr (r, c.LookupRecord) if ll \ |
| 584 | if ll.LookupListIndex in lookup_indices]) |
| 585 | for ll in getattr (r, c.LookupRecord): |
| 586 | if not ll: continue |
| 587 | ll.LookupListIndex = lookup_indices.index (ll.LookupListIndex) |
Behdad Esfahbod | 59dfc13 | 2013-07-23 15:39:20 -0400 | [diff] [blame] | 588 | elif self.Format == 3: |
Behdad Esfahbod | 7c225a6 | 2013-07-23 21:33:13 -0400 | [diff] [blame] | 589 | setattr (self, c.LookupRecord, [ll for ll in getattr (self, c.LookupRecord) if ll \ |
Behdad Esfahbod | 6870f8a | 2013-07-23 16:18:30 -0400 | [diff] [blame] | 590 | if ll.LookupListIndex in lookup_indices]) |
| 591 | for ll in getattr (self, c.LookupRecord): |
Behdad Esfahbod | 6c11b89 | 2013-08-12 15:41:30 -0400 | [diff] [blame] | 592 | if not ll: continue |
| 593 | ll.LookupListIndex = lookup_indices.index (ll.LookupListIndex) |
Behdad Esfahbod | 59dfc13 | 2013-07-23 15:39:20 -0400 | [diff] [blame] | 594 | else: |
| 595 | assert 0, "unknown format: %s" % self.Format |
| 596 | |
Behdad Esfahbod | 44c2b3c | 2013-07-23 16:00:32 -0400 | [diff] [blame] | 597 | @add_method(fontTools.ttLib.tables.otTables.ContextSubst, fontTools.ttLib.tables.otTables.ChainContextSubst, |
| 598 | fontTools.ttLib.tables.otTables.ContextPos, fontTools.ttLib.tables.otTables.ChainContextPos) |
Behdad Esfahbod | 59dfc13 | 2013-07-23 15:39:20 -0400 | [diff] [blame] | 599 | def collect_lookups (self): |
Behdad Esfahbod | 6870f8a | 2013-07-23 16:18:30 -0400 | [diff] [blame] | 600 | c = self.__classify_context () |
Behdad Esfahbod | 44c2b3c | 2013-07-23 16:00:32 -0400 | [diff] [blame] | 601 | |
Behdad Esfahbod | 1f57363 | 2013-07-23 23:04:43 -0400 | [diff] [blame] | 602 | if self.Format in [1, 2]: |
Behdad Esfahbod | 2710839 | 2013-07-23 16:40:47 -0400 | [diff] [blame] | 603 | return [ll.LookupListIndex \ |
Behdad Esfahbod | bac31f5 | 2013-07-23 23:00:39 -0400 | [diff] [blame] | 604 | for rs in getattr (self, c.RuleSet) if rs \ |
| 605 | for r in getattr (rs, c.Rule) if r \ |
Behdad Esfahbod | 7c225a6 | 2013-07-23 21:33:13 -0400 | [diff] [blame] | 606 | for ll in getattr (r, c.LookupRecord) if ll] |
Behdad Esfahbod | 59dfc13 | 2013-07-23 15:39:20 -0400 | [diff] [blame] | 607 | elif self.Format == 3: |
Behdad Esfahbod | 6870f8a | 2013-07-23 16:18:30 -0400 | [diff] [blame] | 608 | return [ll.LookupListIndex \ |
Behdad Esfahbod | 7c225a6 | 2013-07-23 21:33:13 -0400 | [diff] [blame] | 609 | for ll in getattr (self, c.LookupRecord) if ll] |
Behdad Esfahbod | 59dfc13 | 2013-07-23 15:39:20 -0400 | [diff] [blame] | 610 | else: |
| 611 | assert 0, "unknown format: %s" % self.Format |
| 612 | |
Behdad Esfahbod | 610b055 | 2013-07-23 14:52:18 -0400 | [diff] [blame] | 613 | @add_method(fontTools.ttLib.tables.otTables.ExtensionSubst) |
Behdad Esfahbod | 1d4fa13 | 2013-08-08 22:59:32 -0400 | [diff] [blame] | 614 | def closure_glyphs (self, s, cur_glyphs=None): |
Behdad Esfahbod | 610b055 | 2013-07-23 14:52:18 -0400 | [diff] [blame] | 615 | if self.Format == 1: |
Behdad Esfahbod | 033dfcd | 2013-08-13 11:40:50 -0400 | [diff] [blame] | 616 | self.ExtSubTable.closure_glyphs (s, cur_glyphs) |
Behdad Esfahbod | 610b055 | 2013-07-23 14:52:18 -0400 | [diff] [blame] | 617 | else: |
| 618 | assert 0, "unknown format: %s" % self.Format |
| 619 | |
Behdad Esfahbod | aeacc15 | 2013-08-12 20:24:33 -0400 | [diff] [blame] | 620 | @add_method(fontTools.ttLib.tables.otTables.ExtensionSubst) |
| 621 | def may_have_non_1to1 (self): |
| 622 | if self.Format == 1: |
| 623 | return self.ExtSubTable.may_have_non_1to1 () |
| 624 | else: |
| 625 | assert 0, "unknown format: %s" % self.Format |
| 626 | |
Behdad Esfahbod | 02b9206 | 2013-07-21 18:40:59 -0400 | [diff] [blame] | 627 | @add_method(fontTools.ttLib.tables.otTables.ExtensionSubst, fontTools.ttLib.tables.otTables.ExtensionPos) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 628 | def subset_glyphs (self, s): |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 629 | if self.Format == 1: |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 630 | return self.ExtSubTable.subset_glyphs (s) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 631 | else: |
| 632 | assert 0, "unknown format: %s" % self.Format |
| 633 | |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 634 | @add_method(fontTools.ttLib.tables.otTables.ExtensionSubst, fontTools.ttLib.tables.otTables.ExtensionPos) |
| 635 | def subset_lookups (self, lookup_indices): |
| 636 | if self.Format == 1: |
Behdad Esfahbod | 610b055 | 2013-07-23 14:52:18 -0400 | [diff] [blame] | 637 | return self.ExtSubTable.subset_lookups (lookup_indices) |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 638 | else: |
| 639 | assert 0, "unknown format: %s" % self.Format |
| 640 | |
| 641 | @add_method(fontTools.ttLib.tables.otTables.ExtensionSubst, fontTools.ttLib.tables.otTables.ExtensionPos) |
| 642 | def collect_lookups (self): |
| 643 | if self.Format == 1: |
| 644 | return self.ExtSubTable.collect_lookups () |
| 645 | else: |
| 646 | assert 0, "unknown format: %s" % self.Format |
| 647 | |
Behdad Esfahbod | 02b9206 | 2013-07-21 18:40:59 -0400 | [diff] [blame] | 648 | @add_method(fontTools.ttLib.tables.otTables.Lookup) |
Behdad Esfahbod | 1d4fa13 | 2013-08-08 22:59:32 -0400 | [diff] [blame] | 649 | def closure_glyphs (self, s, cur_glyphs=None): |
Behdad Esfahbod | 033dfcd | 2013-08-13 11:40:50 -0400 | [diff] [blame] | 650 | for st in self.SubTable: |
| 651 | if not st: continue |
| 652 | st.closure_glyphs (s, cur_glyphs) |
Behdad Esfahbod | 610b055 | 2013-07-23 14:52:18 -0400 | [diff] [blame] | 653 | |
| 654 | @add_method(fontTools.ttLib.tables.otTables.Lookup) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 655 | def subset_glyphs (self, s): |
| 656 | self.SubTable = [st for st in self.SubTable if st and st.subset_glyphs (s)] |
Behdad Esfahbod | d1d41bc | 2013-07-21 23:15:32 -0400 | [diff] [blame] | 657 | self.SubTableCount = len (self.SubTable) |
Behdad Esfahbod | 4027dd8 | 2013-07-23 10:56:04 -0400 | [diff] [blame] | 658 | return bool (self.SubTableCount) |
Behdad Esfahbod | d1d41bc | 2013-07-21 23:15:32 -0400 | [diff] [blame] | 659 | |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 660 | @add_method(fontTools.ttLib.tables.otTables.Lookup) |
| 661 | def subset_lookups (self, lookup_indices): |
| 662 | for s in self.SubTable: |
| 663 | s.subset_lookups (lookup_indices) |
| 664 | |
| 665 | @add_method(fontTools.ttLib.tables.otTables.Lookup) |
| 666 | def collect_lookups (self): |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 667 | return unique_sorted (sum ((st.collect_lookups () for st in self.SubTable if st), [])) |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 668 | |
Behdad Esfahbod | aeacc15 | 2013-08-12 20:24:33 -0400 | [diff] [blame] | 669 | @add_method(fontTools.ttLib.tables.otTables.Lookup) |
| 670 | def may_have_non_1to1 (self): |
| 671 | return any (st.may_have_non_1to1 () for st in self.SubTable if st) |
| 672 | |
Behdad Esfahbod | d1d41bc | 2013-07-21 23:15:32 -0400 | [diff] [blame] | 673 | @add_method(fontTools.ttLib.tables.otTables.LookupList) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 674 | def subset_glyphs (self, s): |
Behdad Esfahbod | 77cda41 | 2013-07-22 11:46:50 -0400 | [diff] [blame] | 675 | "Returns the indices of nonempty lookups." |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 676 | return [i for (i,l) in enumerate (self.Lookup) if l and l.subset_glyphs (s)] |
Behdad Esfahbod | 77cda41 | 2013-07-22 11:46:50 -0400 | [diff] [blame] | 677 | |
| 678 | @add_method(fontTools.ttLib.tables.otTables.LookupList) |
| 679 | def subset_lookups (self, lookup_indices): |
Behdad Esfahbod | afae832 | 2013-07-24 18:57:06 -0400 | [diff] [blame] | 680 | self.Lookup = [self.Lookup[i] for i in lookup_indices if i < self.LookupCount] |
Behdad Esfahbod | 77cda41 | 2013-07-22 11:46:50 -0400 | [diff] [blame] | 681 | self.LookupCount = len (self.Lookup) |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 682 | for l in self.Lookup: |
| 683 | l.subset_lookups (lookup_indices) |
| 684 | |
| 685 | @add_method(fontTools.ttLib.tables.otTables.LookupList) |
| 686 | def closure_lookups (self, lookup_indices): |
Behdad Esfahbod | bb7e213 | 2013-07-23 13:48:35 -0400 | [diff] [blame] | 687 | lookup_indices = unique_sorted (lookup_indices) |
| 688 | recurse = lookup_indices |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 689 | while True: |
Behdad Esfahbod | afae832 | 2013-07-24 18:57:06 -0400 | [diff] [blame] | 690 | recurse_lookups = sum ((self.Lookup[i].collect_lookups () for i in recurse if i < self.LookupCount), []) |
| 691 | recurse_lookups = [l for l in recurse_lookups if l not in lookup_indices and l < self.LookupCount] |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 692 | if not recurse_lookups: |
Behdad Esfahbod | bb7e213 | 2013-07-23 13:48:35 -0400 | [diff] [blame] | 693 | return unique_sorted (lookup_indices) |
| 694 | recurse_lookups = unique_sorted (recurse_lookups) |
| 695 | lookup_indices.extend (recurse_lookups) |
| 696 | recurse = recurse_lookups |
Behdad Esfahbod | 77cda41 | 2013-07-22 11:46:50 -0400 | [diff] [blame] | 697 | |
| 698 | @add_method(fontTools.ttLib.tables.otTables.Feature) |
| 699 | def subset_lookups (self, lookup_indices): |
| 700 | self.LookupListIndex = [l for l in self.LookupListIndex if l in lookup_indices] |
| 701 | # Now map them. |
| 702 | self.LookupListIndex = [lookup_indices.index (l) for l in self.LookupListIndex] |
| 703 | self.LookupCount = len (self.LookupListIndex) |
Behdad Esfahbod | d1d41bc | 2013-07-21 23:15:32 -0400 | [diff] [blame] | 704 | return self.LookupCount |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 705 | |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 706 | @add_method(fontTools.ttLib.tables.otTables.Feature) |
| 707 | def collect_lookups (self): |
| 708 | return self.LookupListIndex[:] |
| 709 | |
Behdad Esfahbod | 77cda41 | 2013-07-22 11:46:50 -0400 | [diff] [blame] | 710 | @add_method(fontTools.ttLib.tables.otTables.FeatureList) |
| 711 | def subset_lookups (self, lookup_indices): |
| 712 | "Returns the indices of nonempty features." |
| 713 | feature_indices = [i for (i,f) in enumerate (self.FeatureRecord) if f.Feature.subset_lookups (lookup_indices)] |
Behdad Esfahbod | 356c42e | 2013-07-23 12:10:46 -0400 | [diff] [blame] | 714 | self.subset_features (feature_indices) |
Behdad Esfahbod | 77cda41 | 2013-07-22 11:46:50 -0400 | [diff] [blame] | 715 | return feature_indices |
| 716 | |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 717 | @add_method(fontTools.ttLib.tables.otTables.FeatureList) |
| 718 | def collect_lookups (self, feature_indices): |
| 719 | return unique_sorted (sum ((self.FeatureRecord[i].Feature.collect_lookups () for i in feature_indices |
| 720 | if i < self.FeatureCount), [])) |
| 721 | |
Behdad Esfahbod | 356c42e | 2013-07-23 12:10:46 -0400 | [diff] [blame] | 722 | @add_method(fontTools.ttLib.tables.otTables.FeatureList) |
| 723 | def subset_features (self, feature_indices): |
| 724 | self.FeatureRecord = [self.FeatureRecord[i] for i in feature_indices] |
| 725 | self.FeatureCount = len (self.FeatureRecord) |
| 726 | return bool (self.FeatureCount) |
| 727 | |
Behdad Esfahbod | 77cda41 | 2013-07-22 11:46:50 -0400 | [diff] [blame] | 728 | @add_method(fontTools.ttLib.tables.otTables.DefaultLangSys, fontTools.ttLib.tables.otTables.LangSys) |
| 729 | def subset_features (self, feature_indices): |
Behdad Esfahbod | 69ce150 | 2013-07-22 18:00:31 -0400 | [diff] [blame] | 730 | if self.ReqFeatureIndex in feature_indices: |
| 731 | self.ReqFeatureIndex = feature_indices.index (self.ReqFeatureIndex) |
| 732 | else: |
Behdad Esfahbod | 77cda41 | 2013-07-22 11:46:50 -0400 | [diff] [blame] | 733 | self.ReqFeatureIndex = 65535 |
| 734 | self.FeatureIndex = [f for f in self.FeatureIndex if f in feature_indices] |
Behdad Esfahbod | 69ce150 | 2013-07-22 18:00:31 -0400 | [diff] [blame] | 735 | # Now map them. |
| 736 | self.FeatureIndex = [feature_indices.index (f) for f in self.FeatureIndex if f in feature_indices] |
Behdad Esfahbod | 77cda41 | 2013-07-22 11:46:50 -0400 | [diff] [blame] | 737 | self.FeatureCount = len (self.FeatureIndex) |
Behdad Esfahbod | 356c42e | 2013-07-23 12:10:46 -0400 | [diff] [blame] | 738 | return bool (self.FeatureCount or self.ReqFeatureIndex != 65535) |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 739 | |
| 740 | @add_method(fontTools.ttLib.tables.otTables.DefaultLangSys, fontTools.ttLib.tables.otTables.LangSys) |
| 741 | def collect_features (self): |
| 742 | feature_indices = self.FeatureIndex[:] |
| 743 | if self.ReqFeatureIndex != 65535: |
| 744 | feature_indices.append (self.ReqFeatureIndex) |
| 745 | return unique_sorted (feature_indices) |
Behdad Esfahbod | 77cda41 | 2013-07-22 11:46:50 -0400 | [diff] [blame] | 746 | |
| 747 | @add_method(fontTools.ttLib.tables.otTables.Script) |
| 748 | def subset_features (self, feature_indices): |
| 749 | if self.DefaultLangSys and not self.DefaultLangSys.subset_features (feature_indices): |
| 750 | self.DefaultLangSys = None |
| 751 | self.LangSysRecord = [l for l in self.LangSysRecord if l.LangSys.subset_features (feature_indices)] |
| 752 | self.LangSysCount = len (self.LangSysRecord) |
Behdad Esfahbod | 356c42e | 2013-07-23 12:10:46 -0400 | [diff] [blame] | 753 | return bool (self.LangSysCount or self.DefaultLangSys) |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 754 | |
| 755 | @add_method(fontTools.ttLib.tables.otTables.Script) |
| 756 | def collect_features (self): |
Behdad Esfahbod | 2307c8b | 2013-07-23 11:18:13 -0400 | [diff] [blame] | 757 | feature_indices = [l.LangSys.collect_features () for l in self.LangSysRecord] |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 758 | if self.DefaultLangSys: |
| 759 | feature_indices.append (self.DefaultLangSys.collect_features ()) |
| 760 | return unique_sorted (sum (feature_indices, [])) |
Behdad Esfahbod | 77cda41 | 2013-07-22 11:46:50 -0400 | [diff] [blame] | 761 | |
| 762 | @add_method(fontTools.ttLib.tables.otTables.ScriptList) |
| 763 | def subset_features (self, feature_indices): |
| 764 | self.ScriptRecord = [s for s in self.ScriptRecord if s.Script.subset_features (feature_indices)] |
| 765 | self.ScriptCount = len (self.ScriptRecord) |
Behdad Esfahbod | 356c42e | 2013-07-23 12:10:46 -0400 | [diff] [blame] | 766 | return bool (self.ScriptCount) |
Behdad Esfahbod | 77cda41 | 2013-07-22 11:46:50 -0400 | [diff] [blame] | 767 | |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 768 | @add_method(fontTools.ttLib.tables.otTables.ScriptList) |
| 769 | def collect_features (self): |
| 770 | return unique_sorted (sum ((s.Script.collect_features () for s in self.ScriptRecord), [])) |
| 771 | |
Behdad Esfahbod | 610b055 | 2013-07-23 14:52:18 -0400 | [diff] [blame] | 772 | @add_method(fontTools.ttLib.getTableClass('GSUB')) |
Behdad Esfahbod | 254442b | 2013-07-31 14:20:13 -0400 | [diff] [blame] | 773 | def closure_glyphs (self, s): |
| 774 | s.table = self.table |
Behdad Esfahbod | 610b055 | 2013-07-23 14:52:18 -0400 | [diff] [blame] | 775 | feature_indices = self.table.ScriptList.collect_features () |
| 776 | lookup_indices = self.table.FeatureList.collect_lookups (feature_indices) |
Behdad Esfahbod | 610b055 | 2013-07-23 14:52:18 -0400 | [diff] [blame] | 777 | while True: |
Behdad Esfahbod | 033dfcd | 2013-08-13 11:40:50 -0400 | [diff] [blame] | 778 | orig_glyphs = s.glyphs.copy () |
| 779 | for i in lookup_indices: |
| 780 | if i >= self.table.LookupList.LookupCount: continue |
| 781 | if not self.table.LookupList.Lookup[i]: continue |
| 782 | self.table.LookupList.Lookup[i].closure_glyphs (s) |
| 783 | if orig_glyphs == s.glyphs: |
| 784 | break |
Behdad Esfahbod | 254442b | 2013-07-31 14:20:13 -0400 | [diff] [blame] | 785 | del s.table |
Behdad Esfahbod | 610b055 | 2013-07-23 14:52:18 -0400 | [diff] [blame] | 786 | |
Behdad Esfahbod | fd3923e | 2013-07-22 12:48:17 -0400 | [diff] [blame] | 787 | @add_method(fontTools.ttLib.getTableClass('GSUB'), fontTools.ttLib.getTableClass('GPOS')) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 788 | def subset_glyphs (self, s): |
Behdad Esfahbod | a6dbb7a | 2013-07-31 19:53:57 -0400 | [diff] [blame] | 789 | s.glyphs = s.glyphs_gsubed |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 790 | lookup_indices = self.table.LookupList.subset_glyphs (s) |
Behdad Esfahbod | 77cda41 | 2013-07-22 11:46:50 -0400 | [diff] [blame] | 791 | self.subset_lookups (lookup_indices) |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 792 | self.prune_lookups () |
| 793 | return True |
Behdad Esfahbod | 02b9206 | 2013-07-21 18:40:59 -0400 | [diff] [blame] | 794 | |
Behdad Esfahbod | fd3923e | 2013-07-22 12:48:17 -0400 | [diff] [blame] | 795 | @add_method(fontTools.ttLib.getTableClass('GSUB'), fontTools.ttLib.getTableClass('GPOS')) |
Behdad Esfahbod | 77cda41 | 2013-07-22 11:46:50 -0400 | [diff] [blame] | 796 | def subset_lookups (self, lookup_indices): |
| 797 | "Retrains specified lookups, then removes empty features, language systems, and scripts." |
Behdad Esfahbod | fd3923e | 2013-07-22 12:48:17 -0400 | [diff] [blame] | 798 | self.table.LookupList.subset_lookups (lookup_indices) |
| 799 | feature_indices = self.table.FeatureList.subset_lookups (lookup_indices) |
| 800 | self.table.ScriptList.subset_features (feature_indices) |
Behdad Esfahbod | 77cda41 | 2013-07-22 11:46:50 -0400 | [diff] [blame] | 801 | |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 802 | @add_method(fontTools.ttLib.getTableClass('GSUB'), fontTools.ttLib.getTableClass('GPOS')) |
| 803 | def prune_lookups (self): |
| 804 | "Remove unreferenced lookups" |
| 805 | feature_indices = self.table.ScriptList.collect_features () |
| 806 | lookup_indices = self.table.FeatureList.collect_lookups (feature_indices) |
| 807 | lookup_indices = self.table.LookupList.closure_lookups (lookup_indices) |
| 808 | self.subset_lookups (lookup_indices) |
| 809 | |
Behdad Esfahbod | 356c42e | 2013-07-23 12:10:46 -0400 | [diff] [blame] | 810 | @add_method(fontTools.ttLib.getTableClass('GSUB'), fontTools.ttLib.getTableClass('GPOS')) |
| 811 | def subset_feature_tags (self, feature_tags): |
| 812 | feature_indices = [i for (i,f) in enumerate (self.table.FeatureList.FeatureRecord) if f.FeatureTag in feature_tags] |
| 813 | self.table.FeatureList.subset_features (feature_indices) |
| 814 | self.table.ScriptList.subset_features (feature_indices) |
| 815 | |
| 816 | @add_method(fontTools.ttLib.getTableClass('GSUB'), fontTools.ttLib.getTableClass('GPOS')) |
Behdad Esfahbod | d7b6f8f | 2013-07-23 12:46:52 -0400 | [diff] [blame] | 817 | def prune_pre_subset (self, options): |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 818 | if options.layout_features and '*' not in options.layout_features: |
| 819 | self.subset_feature_tags (options.layout_features) |
Behdad Esfahbod | 356c42e | 2013-07-23 12:10:46 -0400 | [diff] [blame] | 820 | self.prune_lookups () |
| 821 | return True |
| 822 | |
Behdad Esfahbod | fd3923e | 2013-07-22 12:48:17 -0400 | [diff] [blame] | 823 | @add_method(fontTools.ttLib.getTableClass('GDEF')) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 824 | def subset_glyphs (self, s): |
Behdad Esfahbod | a6dbb7a | 2013-07-31 19:53:57 -0400 | [diff] [blame] | 825 | glyphs = s.glyphs_gsubed |
Behdad Esfahbod | fd3923e | 2013-07-22 12:48:17 -0400 | [diff] [blame] | 826 | table = self.table |
| 827 | if table.LigCaretList: |
Behdad Esfahbod | a6dbb7a | 2013-07-31 19:53:57 -0400 | [diff] [blame] | 828 | indices = table.LigCaretList.Coverage.subset (glyphs) |
Behdad Esfahbod | fd3923e | 2013-07-22 12:48:17 -0400 | [diff] [blame] | 829 | table.LigCaretList.LigGlyph = [table.LigCaretList.LigGlyph[i] for i in indices] |
| 830 | table.LigCaretList.LigGlyphCount = len (table.LigCaretList.LigGlyph) |
| 831 | if not table.LigCaretList.LigGlyphCount: |
| 832 | table.LigCaretList = None |
| 833 | if table.MarkAttachClassDef: |
Behdad Esfahbod | a6dbb7a | 2013-07-31 19:53:57 -0400 | [diff] [blame] | 834 | table.MarkAttachClassDef.classDefs = {g:v for g,v in table.MarkAttachClassDef.classDefs.items() if g in glyphs} |
Behdad Esfahbod | fd3923e | 2013-07-22 12:48:17 -0400 | [diff] [blame] | 835 | if not table.MarkAttachClassDef.classDefs: |
| 836 | table.MarkAttachClassDef = None |
| 837 | if table.GlyphClassDef: |
Behdad Esfahbod | a6dbb7a | 2013-07-31 19:53:57 -0400 | [diff] [blame] | 838 | table.GlyphClassDef.classDefs = {g:v for g,v in table.GlyphClassDef.classDefs.items() if g in glyphs} |
Behdad Esfahbod | fd3923e | 2013-07-22 12:48:17 -0400 | [diff] [blame] | 839 | if not table.GlyphClassDef.classDefs: |
| 840 | table.GlyphClassDef = None |
| 841 | if table.AttachList: |
Behdad Esfahbod | a6dbb7a | 2013-07-31 19:53:57 -0400 | [diff] [blame] | 842 | indices = table.AttachList.Coverage.subset (glyphs) |
Behdad Esfahbod | fd3923e | 2013-07-22 12:48:17 -0400 | [diff] [blame] | 843 | table.AttachList.AttachPoint = [table.AttachList.AttachPoint[i] for i in indices] |
| 844 | table.AttachList.GlyphCount = len (table.AttachList.AttachPoint) |
| 845 | if not table.AttachList.GlyphCount: |
| 846 | table.AttachList = None |
Behdad Esfahbod | 4027dd8 | 2013-07-23 10:56:04 -0400 | [diff] [blame] | 847 | return bool (table.LigCaretList or table.MarkAttachClassDef or table.GlyphClassDef or table.AttachList) |
Behdad Esfahbod | efb984a | 2013-07-21 22:26:16 -0400 | [diff] [blame] | 848 | |
Behdad Esfahbod | fd3923e | 2013-07-22 12:48:17 -0400 | [diff] [blame] | 849 | @add_method(fontTools.ttLib.getTableClass('kern')) |
Behdad Esfahbod | d4e33a7 | 2013-07-24 18:51:05 -0400 | [diff] [blame] | 850 | def prune_pre_subset (self, options): |
| 851 | # Prune unknown kern table types |
| 852 | self.kernTables = [t for t in self.kernTables if hasattr (t, 'kernTable')] |
| 853 | return bool (self.kernTables) |
| 854 | |
| 855 | @add_method(fontTools.ttLib.getTableClass('kern')) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 856 | def subset_glyphs (self, s): |
Behdad Esfahbod | a6dbb7a | 2013-07-31 19:53:57 -0400 | [diff] [blame] | 857 | glyphs = s.glyphs_gsubed |
Behdad Esfahbod | 5270ec4 | 2013-07-22 12:57:02 -0400 | [diff] [blame] | 858 | for t in self.kernTables: |
Behdad Esfahbod | a6dbb7a | 2013-07-31 19:53:57 -0400 | [diff] [blame] | 859 | t.kernTable = {(a,b):v for ((a,b),v) in t.kernTable.items() if a in glyphs and b in glyphs} |
Behdad Esfahbod | 5270ec4 | 2013-07-22 12:57:02 -0400 | [diff] [blame] | 860 | self.kernTables = [t for t in self.kernTables if t.kernTable] |
Behdad Esfahbod | 4027dd8 | 2013-07-23 10:56:04 -0400 | [diff] [blame] | 861 | return bool (self.kernTables) |
Behdad Esfahbod | efb984a | 2013-07-21 22:26:16 -0400 | [diff] [blame] | 862 | |
Behdad Esfahbod | 75e14fc | 2013-07-22 14:49:54 -0400 | [diff] [blame] | 863 | @add_method(fontTools.ttLib.getTableClass('hmtx'), fontTools.ttLib.getTableClass('vmtx')) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 864 | def subset_glyphs (self, s): |
| 865 | self.metrics = {g:v for g,v in self.metrics.items() if g in s.glyphs} |
Behdad Esfahbod | 4027dd8 | 2013-07-23 10:56:04 -0400 | [diff] [blame] | 866 | return bool (self.metrics) |
Behdad Esfahbod | c716044 | 2013-07-22 14:29:08 -0400 | [diff] [blame] | 867 | |
Behdad Esfahbod | 75e14fc | 2013-07-22 14:49:54 -0400 | [diff] [blame] | 868 | @add_method(fontTools.ttLib.getTableClass('hdmx')) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 869 | def subset_glyphs (self, s): |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 870 | self.hdmx = {sz:{g:v for g,v in l.items() if g in s.glyphs} for (sz,l) in self.hdmx.items()} |
Behdad Esfahbod | 4027dd8 | 2013-07-23 10:56:04 -0400 | [diff] [blame] | 871 | return bool (self.hdmx) |
Behdad Esfahbod | 75e14fc | 2013-07-22 14:49:54 -0400 | [diff] [blame] | 872 | |
Behdad Esfahbod | e45d6af | 2013-07-22 15:29:17 -0400 | [diff] [blame] | 873 | @add_method(fontTools.ttLib.getTableClass('VORG')) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 874 | def subset_glyphs (self, s): |
| 875 | self.VOriginRecords = {g:v for g,v in self.VOriginRecords.items() if g in s.glyphs} |
Behdad Esfahbod | e45d6af | 2013-07-22 15:29:17 -0400 | [diff] [blame] | 876 | self.numVertOriginYMetrics = len (self.VOriginRecords) |
| 877 | return True # Never drop; has default metrics |
| 878 | |
Behdad Esfahbod | 8c646f6 | 2013-07-22 15:06:23 -0400 | [diff] [blame] | 879 | @add_method(fontTools.ttLib.getTableClass('post')) |
Behdad Esfahbod | 8c486d8 | 2013-07-24 13:34:47 -0400 | [diff] [blame] | 880 | def prune_pre_subset (self, options): |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 881 | if not options.glyph_names: |
Behdad Esfahbod | 4264824 | 2013-07-23 12:56:06 -0400 | [diff] [blame] | 882 | self.formatType = 3.0 |
| 883 | return True |
| 884 | |
| 885 | @add_method(fontTools.ttLib.getTableClass('post')) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 886 | def subset_glyphs (self, s): |
Behdad Esfahbod | 4264824 | 2013-07-23 12:56:06 -0400 | [diff] [blame] | 887 | self.extraNames = [] # This seems to do it |
Behdad Esfahbod | c9dec9d | 2013-07-23 10:28:47 -0400 | [diff] [blame] | 888 | return True |
Behdad Esfahbod | 653e974 | 2013-07-22 15:17:12 -0400 | [diff] [blame] | 889 | |
Behdad Esfahbod | 4cf7a80 | 2013-07-24 16:08:35 -0400 | [diff] [blame] | 890 | # Copied from _g_l_y_f.py |
| 891 | ARG_1_AND_2_ARE_WORDS = 0x0001 # if set args are words otherwise they are bytes |
| 892 | ARGS_ARE_XY_VALUES = 0x0002 # if set args are xy values, otherwise they are points |
| 893 | ROUND_XY_TO_GRID = 0x0004 # for the xy values if above is true |
| 894 | WE_HAVE_A_SCALE = 0x0008 # Sx = Sy, otherwise scale == 1.0 |
| 895 | NON_OVERLAPPING = 0x0010 # set to same value for all components (obsolete!) |
| 896 | MORE_COMPONENTS = 0x0020 # indicates at least one more glyph after this one |
| 897 | WE_HAVE_AN_X_AND_Y_SCALE = 0x0040 # Sx, Sy |
| 898 | WE_HAVE_A_TWO_BY_TWO = 0x0080 # t00, t01, t10, t11 |
| 899 | WE_HAVE_INSTRUCTIONS = 0x0100 # instructions follow |
| 900 | USE_MY_METRICS = 0x0200 # apply these metrics to parent glyph |
| 901 | OVERLAP_COMPOUND = 0x0400 # used by Apple in GX fonts |
| 902 | SCALED_COMPONENT_OFFSET = 0x0800 # composite designed to have the component offset scaled (designed for Apple) |
| 903 | UNSCALED_COMPONENT_OFFSET = 0x1000 # composite designed not to have the component offset scaled (designed for MS) |
| 904 | |
| 905 | @add_method(fontTools.ttLib.getTableModule('glyf').Glyph) |
| 906 | def getComponentNamesFast (self, glyfTable): |
| 907 | if struct.unpack(">h", self.data[:2])[0] >= 0: |
| 908 | return [] # Not composite |
| 909 | data = self.data |
| 910 | i = 10 |
| 911 | components = [] |
| 912 | more = 1 |
| 913 | while more: |
| 914 | flags, glyphID = struct.unpack(">HH", data[i:i+4]) |
| 915 | i += 4 |
| 916 | flags = int(flags) |
| 917 | components.append (glyfTable.getGlyphName (int (glyphID))) |
| 918 | |
| 919 | if flags & ARG_1_AND_2_ARE_WORDS: i += 4 |
| 920 | else: i += 2 |
| 921 | if flags & WE_HAVE_A_SCALE: i += 2 |
| 922 | elif flags & WE_HAVE_AN_X_AND_Y_SCALE: i += 4 |
| 923 | elif flags & WE_HAVE_A_TWO_BY_TWO: i += 8 |
| 924 | more = flags & MORE_COMPONENTS |
| 925 | return components |
| 926 | |
| 927 | @add_method(fontTools.ttLib.getTableModule('glyf').Glyph) |
| 928 | def remapComponentsFast (self, indices): |
| 929 | if struct.unpack(">h", self.data[:2])[0] >= 0: |
| 930 | return # Not composite |
| 931 | data = bytearray (self.data) |
| 932 | i = 10 |
| 933 | more = 1 |
| 934 | while more: |
| 935 | flags = (data[i] << 8) | data[i+1] |
| 936 | glyphID = (data[i+2] << 8) | data[i+3] |
| 937 | # Remap |
| 938 | glyphID = indices.index (glyphID) |
| 939 | data[i+2] = glyphID >> 8 |
| 940 | data[i+3] = glyphID & 0xFF |
| 941 | i += 4 |
| 942 | flags = int(flags) |
| 943 | |
| 944 | if flags & ARG_1_AND_2_ARE_WORDS: i += 4 |
| 945 | else: i += 2 |
| 946 | if flags & WE_HAVE_A_SCALE: i += 2 |
| 947 | elif flags & WE_HAVE_AN_X_AND_Y_SCALE: i += 4 |
| 948 | elif flags & WE_HAVE_A_TWO_BY_TWO: i += 8 |
| 949 | more = flags & MORE_COMPONENTS |
| 950 | self.data = str (data) |
| 951 | |
Behdad Esfahbod | 6ec8854 | 2013-07-24 16:52:47 -0400 | [diff] [blame] | 952 | @add_method(fontTools.ttLib.getTableModule('glyf').Glyph) |
| 953 | def dropInstructionsFast (self): |
Behdad Esfahbod | 6ec8854 | 2013-07-24 16:52:47 -0400 | [diff] [blame] | 954 | numContours = struct.unpack(">h", self.data[:2])[0] |
| 955 | data = bytearray (self.data) |
| 956 | i = 10 |
| 957 | if numContours >= 0: |
| 958 | i += 2 * numContours # endPtsOfContours |
| 959 | instructionLen = (data[i] << 8) | data[i+1] |
| 960 | # Zero it |
| 961 | data[i] = data [i+1] = 0 |
| 962 | i += 2 |
Behdad Esfahbod | 0fb6988 | 2013-07-24 17:25:35 -0400 | [diff] [blame] | 963 | if instructionLen: |
| 964 | # Splice it out |
| 965 | data = data[:i] + data[i+instructionLen:] |
Behdad Esfahbod | 6ec8854 | 2013-07-24 16:52:47 -0400 | [diff] [blame] | 966 | else: |
| 967 | more = 1 |
| 968 | while more: |
| 969 | flags = (data[i] << 8) | data[i+1] |
| 970 | # Turn instruction flag off |
| 971 | flags &= ~WE_HAVE_INSTRUCTIONS |
| 972 | data[i+0] = flags >> 8 |
| 973 | data[i+1] = flags & 0xFF |
| 974 | i += 4 |
| 975 | flags = int(flags) |
| 976 | |
| 977 | if flags & ARG_1_AND_2_ARE_WORDS: i += 4 |
| 978 | else: i += 2 |
| 979 | if flags & WE_HAVE_A_SCALE: i += 2 |
| 980 | elif flags & WE_HAVE_AN_X_AND_Y_SCALE: i += 4 |
| 981 | elif flags & WE_HAVE_A_TWO_BY_TWO: i += 8 |
| 982 | more = flags & MORE_COMPONENTS |
| 983 | # Cut off |
| 984 | data = data[:i] |
| 985 | if len(data) % 4: |
| 986 | # add pad bytes |
| 987 | nPadBytes = 4 - (len(data) % 4) |
| 988 | for i in range (nPadBytes): |
| 989 | data.append (0) |
| 990 | self.data = str (data) |
| 991 | |
Behdad Esfahbod | 861d915 | 2013-07-22 16:47:24 -0400 | [diff] [blame] | 992 | @add_method(fontTools.ttLib.getTableClass('glyf')) |
Behdad Esfahbod | 254442b | 2013-07-31 14:20:13 -0400 | [diff] [blame] | 993 | def closure_glyphs (self, s): |
Behdad Esfahbod | 033dfcd | 2013-08-13 11:40:50 -0400 | [diff] [blame] | 994 | decompose = s.glyphs |
Behdad Esfahbod | abb50a1 | 2013-07-23 12:58:37 -0400 | [diff] [blame] | 995 | # I don't know if component glyphs can be composite themselves. |
| 996 | # We handle them anyway. |
| 997 | while True: |
Behdad Esfahbod | 033dfcd | 2013-08-13 11:40:50 -0400 | [diff] [blame] | 998 | components = set () |
Behdad Esfahbod | abb50a1 | 2013-07-23 12:58:37 -0400 | [diff] [blame] | 999 | for g in decompose: |
Behdad Esfahbod | 4cf7a80 | 2013-07-24 16:08:35 -0400 | [diff] [blame] | 1000 | if g not in self.glyphs: |
Behdad Esfahbod | f8c20e4 | 2013-07-23 23:13:23 -0400 | [diff] [blame] | 1001 | continue |
Behdad Esfahbod | 4cf7a80 | 2013-07-24 16:08:35 -0400 | [diff] [blame] | 1002 | gl = self.glyphs[g] |
| 1003 | if hasattr (gl, "data"): |
| 1004 | for c in gl.getComponentNamesFast (self): |
Behdad Esfahbod | 033dfcd | 2013-08-13 11:40:50 -0400 | [diff] [blame] | 1005 | if c not in s.glyphs: |
| 1006 | components.add (c) |
Behdad Esfahbod | 4cf7a80 | 2013-07-24 16:08:35 -0400 | [diff] [blame] | 1007 | else: |
| 1008 | # TTX seems to expand gid0..3 always |
| 1009 | if gl.isComposite (): |
| 1010 | for c in gl.components: |
Behdad Esfahbod | 033dfcd | 2013-08-13 11:40:50 -0400 | [diff] [blame] | 1011 | if c.glyphName not in s.glyphs: |
| 1012 | components.add (c.glyphName) |
| 1013 | components = set (c for c in components if c not in s.glyphs) |
Behdad Esfahbod | abb50a1 | 2013-07-23 12:58:37 -0400 | [diff] [blame] | 1014 | if not components: |
Behdad Esfahbod | 033dfcd | 2013-08-13 11:40:50 -0400 | [diff] [blame] | 1015 | break |
| 1016 | decompose = components |
| 1017 | s.glyphs.update (components) |
Behdad Esfahbod | abb50a1 | 2013-07-23 12:58:37 -0400 | [diff] [blame] | 1018 | |
| 1019 | @add_method(fontTools.ttLib.getTableClass('glyf')) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 1020 | def subset_glyphs (self, s): |
| 1021 | self.glyphs = {g:v for g,v in self.glyphs.items() if g in s.glyphs} |
| 1022 | indices = [i for i,g in enumerate (self.glyphOrder) if g in s.glyphs] |
Behdad Esfahbod | 4cf7a80 | 2013-07-24 16:08:35 -0400 | [diff] [blame] | 1023 | for v in self.glyphs.values (): |
| 1024 | if hasattr (v, "data"): |
| 1025 | v.remapComponentsFast (indices) |
| 1026 | else: |
| 1027 | pass # No need |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 1028 | self.glyphOrder = [g for g in self.glyphOrder if g in s.glyphs] |
Behdad Esfahbod | 4027dd8 | 2013-07-23 10:56:04 -0400 | [diff] [blame] | 1029 | return bool (self.glyphs) |
Behdad Esfahbod | 861d915 | 2013-07-22 16:47:24 -0400 | [diff] [blame] | 1030 | |
Behdad Esfahbod | ed98c61 | 2013-07-23 12:37:41 -0400 | [diff] [blame] | 1031 | @add_method(fontTools.ttLib.getTableClass('glyf')) |
Behdad Esfahbod | d7b6f8f | 2013-07-23 12:46:52 -0400 | [diff] [blame] | 1032 | def prune_post_subset (self, options): |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 1033 | if not options.hinting: |
Behdad Esfahbod | 6ec8854 | 2013-07-24 16:52:47 -0400 | [diff] [blame] | 1034 | for v in self.glyphs.values (): |
| 1035 | if hasattr (v, "data"): |
| 1036 | v.dropInstructionsFast () |
| 1037 | else: |
| 1038 | v.program = fontTools.ttLib.tables.ttProgram.Program() |
| 1039 | v.program.fromBytecode([]) |
Behdad Esfahbod | ed98c61 | 2013-07-23 12:37:41 -0400 | [diff] [blame] | 1040 | return True |
| 1041 | |
Behdad Esfahbod | 2b677c8 | 2013-07-23 13:37:13 -0400 | [diff] [blame] | 1042 | @add_method(fontTools.ttLib.getTableClass('CFF ')) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 1043 | def subset_glyphs (self, s): |
Behdad Esfahbod | 2b677c8 | 2013-07-23 13:37:13 -0400 | [diff] [blame] | 1044 | assert 0, "unimplemented" |
| 1045 | |
Behdad Esfahbod | 653e974 | 2013-07-22 15:17:12 -0400 | [diff] [blame] | 1046 | @add_method(fontTools.ttLib.getTableClass('cmap')) |
Behdad Esfahbod | 8c8ff45 | 2013-07-31 19:47:37 -0400 | [diff] [blame] | 1047 | def closure_glyphs (self, s): |
| 1048 | tables = [t for t in self.tables if t.platformID == 3 and t.platEncID in [1, 10]] |
Behdad Esfahbod | 98259f2 | 2013-07-31 20:16:24 -0400 | [diff] [blame] | 1049 | for u in s.unicodes_requested: |
Behdad Esfahbod | 8c8ff45 | 2013-07-31 19:47:37 -0400 | [diff] [blame] | 1050 | found = False |
| 1051 | for table in tables: |
| 1052 | if u in table.cmap: |
Behdad Esfahbod | 033dfcd | 2013-08-13 11:40:50 -0400 | [diff] [blame] | 1053 | s.glyphs.add (table.cmap[u]) |
Behdad Esfahbod | 8c8ff45 | 2013-07-31 19:47:37 -0400 | [diff] [blame] | 1054 | found = True |
| 1055 | break |
| 1056 | if not found: |
| 1057 | s.log ("No glyph for Unicode value %s; skipping." % u) |
Behdad Esfahbod | 8c8ff45 | 2013-07-31 19:47:37 -0400 | [diff] [blame] | 1058 | |
| 1059 | @add_method(fontTools.ttLib.getTableClass('cmap')) |
Behdad Esfahbod | abb50a1 | 2013-07-23 12:58:37 -0400 | [diff] [blame] | 1060 | def prune_pre_subset (self, options): |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 1061 | if not options.legacy_cmap: |
Behdad Esfahbod | de4a15b | 2013-07-23 13:05:42 -0400 | [diff] [blame] | 1062 | # Drop non-Unicode / non-Symbol cmaps |
| 1063 | self.tables = [t for t in self.tables if t.platformID == 3 and t.platEncID in [0, 1, 10]] |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 1064 | if not options.symbol_cmap: |
Behdad Esfahbod | de4a15b | 2013-07-23 13:05:42 -0400 | [diff] [blame] | 1065 | self.tables = [t for t in self.tables if t.platformID == 3 and t.platEncID in [1, 10]] |
Behdad Esfahbod | abb50a1 | 2013-07-23 12:58:37 -0400 | [diff] [blame] | 1066 | # TODO Only keep one subtable? |
Behdad Esfahbod | abb50a1 | 2013-07-23 12:58:37 -0400 | [diff] [blame] | 1067 | # For now, drop format=0 which can't be subset_glyphs easily? |
| 1068 | self.tables = [t for t in self.tables if t.format != 0] |
| 1069 | return bool (self.tables) |
| 1070 | |
| 1071 | @add_method(fontTools.ttLib.getTableClass('cmap')) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 1072 | def subset_glyphs (self, s): |
Behdad Esfahbod | a6dbb7a | 2013-07-31 19:53:57 -0400 | [diff] [blame] | 1073 | s.glyphs = s.glyphs_cmaped |
Behdad Esfahbod | 653e974 | 2013-07-22 15:17:12 -0400 | [diff] [blame] | 1074 | for t in self.tables: |
Behdad Esfahbod | 9453a36 | 2013-07-22 16:21:24 -0400 | [diff] [blame] | 1075 | # For reasons I don't understand I need this here |
| 1076 | # to force decompilation of the cmap format 14. |
| 1077 | try: |
| 1078 | getattr (t, "asdf") |
| 1079 | except AttributeError: |
| 1080 | pass |
Behdad Esfahbod | b13d790 | 2013-07-22 16:01:15 -0400 | [diff] [blame] | 1081 | if t.format == 14: |
Behdad Esfahbod | 9453a36 | 2013-07-22 16:21:24 -0400 | [diff] [blame] | 1082 | # XXX We drop all the default-UVS mappings (g==None) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 1083 | t.uvsDict = {v:[(u,g) for (u,g) in l if g in s.glyphs] for (v,l) in t.uvsDict.items()} |
Behdad Esfahbod | b13d790 | 2013-07-22 16:01:15 -0400 | [diff] [blame] | 1084 | t.uvsDict = {v:l for (v,l) in t.uvsDict.items() if l} |
| 1085 | else: |
Behdad Esfahbod | c4eb3db | 2013-07-31 19:56:19 -0400 | [diff] [blame] | 1086 | t.cmap = {u:g for (u,g) in t.cmap.items() if g in s.glyphs_requested or u in s.unicodes_requested} |
Behdad Esfahbod | b13d790 | 2013-07-22 16:01:15 -0400 | [diff] [blame] | 1087 | self.tables = [t for t in self.tables if (t.cmap if t.format != 14 else t.uvsDict)] |
Behdad Esfahbod | 7e4bfc3 | 2013-07-22 18:47:32 -0400 | [diff] [blame] | 1088 | # XXX Convert formats when needed |
Behdad Esfahbod | 2ac3630 | 2013-08-08 23:49:00 -0400 | [diff] [blame] | 1089 | # In particular, if we have a format=12 without non-BMP |
| 1090 | # characters, either drop format=12 one or convert it |
| 1091 | # to format=4 if there's not one. |
Behdad Esfahbod | 61addb4 | 2013-07-23 11:03:49 -0400 | [diff] [blame] | 1092 | return bool (self.tables) |
| 1093 | |
Behdad Esfahbod | 61addb4 | 2013-07-23 11:03:49 -0400 | [diff] [blame] | 1094 | @add_method(fontTools.ttLib.getTableClass('name')) |
Behdad Esfahbod | d7b6f8f | 2013-07-23 12:46:52 -0400 | [diff] [blame] | 1095 | def prune_pre_subset (self, options): |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 1096 | if '*' not in options.name_IDs: |
| 1097 | self.names = [n for n in self.names if n.nameID in options.name_IDs] |
| 1098 | if not options.name_legacy: |
Behdad Esfahbod | 20faeb0 | 2013-07-23 13:19:03 -0400 | [diff] [blame] | 1099 | self.names = [n for n in self.names if n.platformID == 3 and n.platEncID == 1] |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 1100 | if '*' not in options.name_languages: |
| 1101 | self.names = [n for n in self.names if n.langID in options.name_languages] |
Behdad Esfahbod | 20faeb0 | 2013-07-23 13:19:03 -0400 | [diff] [blame] | 1102 | return True # Retain even if empty |
Behdad Esfahbod | 653e974 | 2013-07-22 15:17:12 -0400 | [diff] [blame] | 1103 | |
Behdad Esfahbod | 8c646f6 | 2013-07-22 15:06:23 -0400 | [diff] [blame] | 1104 | |
Behdad Esfahbod | bc25f16 | 2013-07-23 12:56:54 -0400 | [diff] [blame] | 1105 | drop_tables_default = ['BASE', 'JSTF', 'DSIG', 'EBDT', 'EBLC', 'EBSC', 'PCLT', 'LTSH'] |
Behdad Esfahbod | 103a12f | 2013-07-23 15:08:39 -0400 | [diff] [blame] | 1106 | drop_tables_default += ['Feat', 'Glat', 'Gloc', 'Silf', 'Sill'] # Graphite |
Behdad Esfahbod | 38e852c | 2013-07-23 16:56:50 -0400 | [diff] [blame] | 1107 | drop_tables_default += ['CBLC', 'CBDT', 'sbix', 'COLR', 'CPAL'] # Color |
Behdad Esfahbod | ed98c61 | 2013-07-23 12:37:41 -0400 | [diff] [blame] | 1108 | no_subset_tables = ['gasp', 'head', 'hhea', 'maxp', 'vhea', 'OS/2', 'loca', 'name', 'cvt ', 'fpgm', 'prep'] |
Behdad Esfahbod | bc25f16 | 2013-07-23 12:56:54 -0400 | [diff] [blame] | 1109 | hinting_tables = ['cvt ', 'fpgm', 'prep', 'hdmx', 'VDMX'] |
Behdad Esfahbod | 29df046 | 2013-07-23 11:05:25 -0400 | [diff] [blame] | 1110 | |
Behdad Esfahbod | 356c42e | 2013-07-23 12:10:46 -0400 | [diff] [blame] | 1111 | # Based on HarfBuzz shapers |
| 1112 | layout_features_dict = { |
| 1113 | # Default shaper |
| 1114 | 'common': ['ccmp', 'liga', 'locl', 'mark', 'mkmk', 'rlig'], |
| 1115 | 'horizontal': ['calt', 'clig', 'curs', 'kern', 'rclt'], |
| 1116 | 'vertical': ['valt', 'vert', 'vkrn', 'vpal', 'vrt2'], |
| 1117 | 'ltr': ['ltra', 'ltrm'], |
| 1118 | 'rtl': ['rtla', 'rtlm'], |
| 1119 | # Complex shapers |
Behdad Esfahbod | f36b5a9 | 2013-08-04 16:54:46 -0400 | [diff] [blame] | 1120 | 'arabic': ['init', 'medi', 'fina', 'isol', 'med2', 'fin2', 'fin3', 'cswh', 'mset'], |
Behdad Esfahbod | 356c42e | 2013-07-23 12:10:46 -0400 | [diff] [blame] | 1121 | 'hangul': ['ljmo', 'vjmo', 'tjmo'], |
| 1122 | 'tibetal': ['abvs', 'blws', 'abvm', 'blwm'], |
| 1123 | 'indic': ['nukt', 'akhn', 'rphf', 'rkrf', 'pref', 'blwf', 'half', 'abvf', 'pstf', 'cfar', 'vatu', 'cjct', |
| 1124 | 'init', 'pres', 'abvs', 'blws', 'psts', 'haln', 'dist', 'abvm', 'blwm'], |
| 1125 | } |
| 1126 | layout_features_all = unique_sorted (sum (layout_features_dict.values (), [])) |
| 1127 | |
Behdad Esfahbod | 75e14fc | 2013-07-22 14:49:54 -0400 | [diff] [blame] | 1128 | # TODO OS/2 ulUnicodeRange / ulCodePageRange? |
Behdad Esfahbod | f71267b | 2013-07-23 12:59:13 -0400 | [diff] [blame] | 1129 | # TODO Drop unneeded GSUB/GPOS Script/LangSys entries |
Behdad Esfahbod | 398d389 | 2013-07-23 15:29:40 -0400 | [diff] [blame] | 1130 | # TODO Avoid recursing too much |
Behdad Esfahbod | e94aa0e | 2013-07-23 13:22:04 -0400 | [diff] [blame] | 1131 | # TODO Text direction considerations |
| 1132 | # TODO Text script / language considerations |
Behdad Esfahbod | b3ee60c | 2013-07-24 19:21:40 -0400 | [diff] [blame] | 1133 | # TODO Drop unknown tables? Using DefaultTable.prune? |
Behdad Esfahbod | 8c4f7cc | 2013-07-24 17:58:29 -0400 | [diff] [blame] | 1134 | # TODO Drop GPOS Device records if not hinting? |
Behdad Esfahbod | 93e2636 | 2013-08-09 14:22:48 -0400 | [diff] [blame] | 1135 | # TODO Move font name loading hack to Subsetter? |
Behdad Esfahbod | 56ebd04 | 2013-07-22 13:02:24 -0400 | [diff] [blame] | 1136 | |
Behdad Esfahbod | 8c486d8 | 2013-07-24 13:34:47 -0400 | [diff] [blame] | 1137 | |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 1138 | class Subsetter: |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 1139 | |
| 1140 | class Options: |
| 1141 | drop_tables = drop_tables_default |
| 1142 | layout_features = layout_features_all |
| 1143 | hinting = False |
| 1144 | glyph_names = False |
| 1145 | legacy_cmap = False |
| 1146 | symbol_cmap = False |
| 1147 | name_IDs = [1, 2] # Family and Style |
| 1148 | name_legacy = False |
| 1149 | name_languages = [0x0409] # English |
| 1150 | mandatory_glyphs = True # First four for TrueType, .notdef for CFF |
| 1151 | recalc_bboxes = False # Slows us down |
| 1152 | |
| 1153 | def __init__ (self, **kwargs): |
| 1154 | |
| 1155 | self.set (**kwargs) |
| 1156 | |
| 1157 | def set (self, **kwargs): |
| 1158 | for k,v in kwargs.items (): |
| 1159 | if not hasattr (self, k): |
| 1160 | raise Exception ("Unknown option '%s'" % k) |
| 1161 | setattr (self, k, v) |
| 1162 | |
| 1163 | def parse_opts (self, argv, ignore_unknown=False): |
| 1164 | ret = [] |
| 1165 | opts = {} |
| 1166 | for a in argv: |
| 1167 | if not a.startswith ('--'): |
| 1168 | ret.append (a) |
| 1169 | continue |
| 1170 | a = a[2:] |
| 1171 | i = a.find ('=') |
| 1172 | if i == -1: |
| 1173 | if a.startswith ("no-"): |
| 1174 | k = a[3:] |
| 1175 | v = False |
| 1176 | else: |
| 1177 | k = a |
| 1178 | v = True |
| 1179 | else: |
| 1180 | k = a[:i] |
| 1181 | v = a[i+1:] |
| 1182 | k = k.replace ('-', '_') |
| 1183 | if not hasattr (self, k): |
| 1184 | if ignore_unknown: |
| 1185 | ret.append (a) |
| 1186 | continue |
| 1187 | else: |
| 1188 | raise Exception ("Unknown option '%s'" % a) |
| 1189 | |
| 1190 | ov = getattr (self, k) |
| 1191 | if isinstance (ov, bool): |
| 1192 | v = bool (v) |
| 1193 | elif isinstance (ov, int): |
| 1194 | v = int (v) |
| 1195 | elif isinstance (ov, list): |
| 1196 | v = v.split (',') |
| 1197 | v = [int (x, 0) if x[0] in range (10) else x for x in v] |
| 1198 | |
| 1199 | opts[k] = v |
| 1200 | self.set (**opts) |
| 1201 | |
| 1202 | return ret |
| 1203 | |
| 1204 | |
Behdad Esfahbod | df3d757 | 2013-07-31 15:03:43 -0400 | [diff] [blame] | 1205 | def __init__ (self, font=None, options=None, log=None): |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 1206 | |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 1207 | if not log: |
| 1208 | log = Logger() |
| 1209 | if not options: |
| 1210 | options = Options() |
Behdad Esfahbod | f6b668e | 2013-08-13 12:20:59 -0400 | [diff] [blame^] | 1211 | if isinstance (font, basestring): |
| 1212 | font = load_font (font, dont_load_glyph_names=not options.glyph_names) |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 1213 | |
Behdad Esfahbod | 88264a6 | 2013-07-31 14:45:13 -0400 | [diff] [blame] | 1214 | self.font = font |
| 1215 | self.options = options |
Behdad Esfahbod | df3d757 | 2013-07-31 15:03:43 -0400 | [diff] [blame] | 1216 | self.log = log |
Behdad Esfahbod | c4eb3db | 2013-07-31 19:56:19 -0400 | [diff] [blame] | 1217 | self.unicodes_requested = set () |
| 1218 | self.glyphs_requested = set () |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 1219 | |
Behdad Esfahbod | 618c086 | 2013-07-31 20:11:17 -0400 | [diff] [blame] | 1220 | def populate (self, glyphs=[], unicodes=[], text=""): |
Behdad Esfahbod | c4eb3db | 2013-07-31 19:56:19 -0400 | [diff] [blame] | 1221 | self.unicodes_requested.update (unicodes) |
Behdad Esfahbod | 98259f2 | 2013-07-31 20:16:24 -0400 | [diff] [blame] | 1222 | if isinstance (text, str): |
Behdad Esfahbod | 618c086 | 2013-07-31 20:11:17 -0400 | [diff] [blame] | 1223 | text = text.decode ("utf8") |
Behdad Esfahbod | 8c8ff45 | 2013-07-31 19:47:37 -0400 | [diff] [blame] | 1224 | for u in text: |
Behdad Esfahbod | 618c086 | 2013-07-31 20:11:17 -0400 | [diff] [blame] | 1225 | self.unicodes_requested.add (ord (u)) |
Behdad Esfahbod | c4eb3db | 2013-07-31 19:56:19 -0400 | [diff] [blame] | 1226 | self.glyphs_requested.update (glyphs) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 1227 | |
Behdad Esfahbod | 98259f2 | 2013-07-31 20:16:24 -0400 | [diff] [blame] | 1228 | def pre_prune (self): |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 1229 | |
Behdad Esfahbod | 98259f2 | 2013-07-31 20:16:24 -0400 | [diff] [blame] | 1230 | for tag in self.font.keys(): |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 1231 | if tag == 'GlyphOrder': continue |
| 1232 | |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 1233 | if tag in self.options.drop_tables or \ |
| 1234 | (tag in hinting_tables and not self.options.hinting): |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 1235 | self.log (tag, "dropped") |
Behdad Esfahbod | 98259f2 | 2013-07-31 20:16:24 -0400 | [diff] [blame] | 1236 | del self.font[tag] |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 1237 | continue |
| 1238 | |
| 1239 | clazz = fontTools.ttLib.getTableClass(tag) |
| 1240 | |
| 1241 | if hasattr (clazz, 'prune_pre_subset'): |
Behdad Esfahbod | 98259f2 | 2013-07-31 20:16:24 -0400 | [diff] [blame] | 1242 | table = self.font[tag] |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 1243 | retain = table.prune_pre_subset (self.options) |
| 1244 | self.log.lapse ("prune '%s'" % tag) |
| 1245 | if not retain: |
| 1246 | self.log (tag, "pruned to empty; dropped") |
Behdad Esfahbod | 98259f2 | 2013-07-31 20:16:24 -0400 | [diff] [blame] | 1247 | del self.font[tag] |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 1248 | continue |
| 1249 | else: |
| 1250 | self.log (tag, "pruned") |
| 1251 | |
Behdad Esfahbod | 98259f2 | 2013-07-31 20:16:24 -0400 | [diff] [blame] | 1252 | def closure_glyphs (self): |
Behdad Esfahbod | 2fb90e2 | 2013-07-31 20:04:08 -0400 | [diff] [blame] | 1253 | |
Behdad Esfahbod | 033dfcd | 2013-08-13 11:40:50 -0400 | [diff] [blame] | 1254 | self.glyphs = self.glyphs_requested.copy () |
Behdad Esfahbod | 98259f2 | 2013-07-31 20:16:24 -0400 | [diff] [blame] | 1255 | |
| 1256 | if 'cmap' in self.font: |
Behdad Esfahbod | 033dfcd | 2013-08-13 11:40:50 -0400 | [diff] [blame] | 1257 | self.font['cmap'].closure_glyphs (self) |
Behdad Esfahbod | 2fb90e2 | 2013-07-31 20:04:08 -0400 | [diff] [blame] | 1258 | self.glyphs_cmaped = self.glyphs |
| 1259 | |
| 1260 | if self.options.mandatory_glyphs: |
Behdad Esfahbod | 98259f2 | 2013-07-31 20:16:24 -0400 | [diff] [blame] | 1261 | if 'glyf' in self.font: |
Behdad Esfahbod | 2fb90e2 | 2013-07-31 20:04:08 -0400 | [diff] [blame] | 1262 | for i in range (4): |
Behdad Esfahbod | 98259f2 | 2013-07-31 20:16:24 -0400 | [diff] [blame] | 1263 | self.glyphs.add (self.font.getGlyphName (i)) |
Behdad Esfahbod | 2fb90e2 | 2013-07-31 20:04:08 -0400 | [diff] [blame] | 1264 | self.log ("Added first four glyphs to subset") |
| 1265 | else: |
| 1266 | self.glyphs.add ('.notdef') |
| 1267 | self.log ("Added .notdef glyph to subset") |
| 1268 | |
Behdad Esfahbod | 98259f2 | 2013-07-31 20:16:24 -0400 | [diff] [blame] | 1269 | if 'GSUB' in self.font: |
Behdad Esfahbod | 8c8ff45 | 2013-07-31 19:47:37 -0400 | [diff] [blame] | 1270 | self.log ("Closing glyph list over 'GSUB': %d glyphs before" % len (self.glyphs)) |
Behdad Esfahbod | f549784 | 2013-08-08 21:57:02 -0400 | [diff] [blame] | 1271 | self.log.glyphs (self.glyphs, font=self.font) |
Behdad Esfahbod | 033dfcd | 2013-08-13 11:40:50 -0400 | [diff] [blame] | 1272 | self.font['GSUB'].closure_glyphs (self) |
Behdad Esfahbod | 8c8ff45 | 2013-07-31 19:47:37 -0400 | [diff] [blame] | 1273 | self.log ("Closed glyph list over 'GSUB': %d glyphs after" % len (self.glyphs)) |
Behdad Esfahbod | f549784 | 2013-08-08 21:57:02 -0400 | [diff] [blame] | 1274 | self.log.glyphs (self.glyphs, font=self.font) |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 1275 | self.log.lapse ("close glyph list over 'GSUB'") |
Behdad Esfahbod | 033dfcd | 2013-08-13 11:40:50 -0400 | [diff] [blame] | 1276 | self.glyphs_gsubed = self.glyphs.copy () |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 1277 | |
Behdad Esfahbod | 98259f2 | 2013-07-31 20:16:24 -0400 | [diff] [blame] | 1278 | if 'glyf' in self.font: |
Behdad Esfahbod | 8c8ff45 | 2013-07-31 19:47:37 -0400 | [diff] [blame] | 1279 | self.log ("Closing glyph list over 'glyf': %d glyphs before" % len (self.glyphs)) |
Behdad Esfahbod | f549784 | 2013-08-08 21:57:02 -0400 | [diff] [blame] | 1280 | self.log.glyphs (self.glyphs, font=self.font) |
Behdad Esfahbod | 033dfcd | 2013-08-13 11:40:50 -0400 | [diff] [blame] | 1281 | self.font['glyf'].closure_glyphs (self) |
Behdad Esfahbod | 8c8ff45 | 2013-07-31 19:47:37 -0400 | [diff] [blame] | 1282 | self.log ("Closed glyph list over 'glyf': %d glyphs after" % len (self.glyphs)) |
Behdad Esfahbod | f549784 | 2013-08-08 21:57:02 -0400 | [diff] [blame] | 1283 | self.log.glyphs (self.glyphs, font=self.font) |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 1284 | self.log.lapse ("close glyph list over 'glyf'") |
Behdad Esfahbod | 033dfcd | 2013-08-13 11:40:50 -0400 | [diff] [blame] | 1285 | self.glyphs_glyfed = self.glyphs.copy () |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 1286 | |
Behdad Esfahbod | 033dfcd | 2013-08-13 11:40:50 -0400 | [diff] [blame] | 1287 | self.glyphs_all = self.glyphs.copy () |
Behdad Esfahbod | 8c8ff45 | 2013-07-31 19:47:37 -0400 | [diff] [blame] | 1288 | |
| 1289 | self.log ("Retaining %d glyphs: " % len (self.glyphs_all)) |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 1290 | |
Behdad Esfahbod | 98259f2 | 2013-07-31 20:16:24 -0400 | [diff] [blame] | 1291 | def subset_glyphs (self): |
| 1292 | for tag in self.font.keys(): |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 1293 | if tag == 'GlyphOrder': continue |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 1294 | clazz = fontTools.ttLib.getTableClass(tag) |
| 1295 | |
| 1296 | if tag in no_subset_tables: |
| 1297 | self.log (tag, "subsetting not needed") |
| 1298 | elif hasattr (clazz, 'subset_glyphs'): |
Behdad Esfahbod | 98259f2 | 2013-07-31 20:16:24 -0400 | [diff] [blame] | 1299 | table = self.font[tag] |
Behdad Esfahbod | a6dbb7a | 2013-07-31 19:53:57 -0400 | [diff] [blame] | 1300 | self.glyphs = self.glyphs_all |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 1301 | retain = table.subset_glyphs (self) |
Behdad Esfahbod | 033dfcd | 2013-08-13 11:40:50 -0400 | [diff] [blame] | 1302 | self.glyphs = self.glyphs_all |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 1303 | self.log.lapse ("subset '%s'" % tag) |
| 1304 | if not retain: |
| 1305 | self.log (tag, "subsetted to empty; dropped") |
Behdad Esfahbod | 98259f2 | 2013-07-31 20:16:24 -0400 | [diff] [blame] | 1306 | del self.font[tag] |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 1307 | else: |
| 1308 | self.log (tag, "subsetted") |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 1309 | else: |
| 1310 | self.log (tag, "NOT subset; don't know how to subset") |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 1311 | |
Behdad Esfahbod | 98259f2 | 2013-07-31 20:16:24 -0400 | [diff] [blame] | 1312 | glyphOrder = self.font.getGlyphOrder() |
Behdad Esfahbod | 2fb90e2 | 2013-07-31 20:04:08 -0400 | [diff] [blame] | 1313 | glyphOrder = [g for g in glyphOrder if g in self.glyphs_all] |
Behdad Esfahbod | 98259f2 | 2013-07-31 20:16:24 -0400 | [diff] [blame] | 1314 | self.font.setGlyphOrder (glyphOrder) |
| 1315 | self.font._buildReverseGlyphOrderDict () |
Behdad Esfahbod | 2fb90e2 | 2013-07-31 20:04:08 -0400 | [diff] [blame] | 1316 | self.log.lapse ("subset GlyphOrder") |
| 1317 | |
Behdad Esfahbod | 98259f2 | 2013-07-31 20:16:24 -0400 | [diff] [blame] | 1318 | def post_prune (self): |
| 1319 | for tag in self.font.keys(): |
Behdad Esfahbod | 2fb90e2 | 2013-07-31 20:04:08 -0400 | [diff] [blame] | 1320 | if tag == 'GlyphOrder': continue |
| 1321 | clazz = fontTools.ttLib.getTableClass(tag) |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 1322 | if hasattr (clazz, 'prune_post_subset'): |
Behdad Esfahbod | 98259f2 | 2013-07-31 20:16:24 -0400 | [diff] [blame] | 1323 | table = self.font[tag] |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 1324 | retain = table.prune_post_subset (self.options) |
| 1325 | self.log.lapse ("prune '%s'" % tag) |
| 1326 | if not retain: |
| 1327 | self.log (tag, "pruned to empty; dropped") |
Behdad Esfahbod | 98259f2 | 2013-07-31 20:16:24 -0400 | [diff] [blame] | 1328 | del self.font[tag] |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 1329 | else: |
| 1330 | self.log (tag, "pruned") |
| 1331 | |
Behdad Esfahbod | f6b668e | 2013-08-13 12:20:59 -0400 | [diff] [blame^] | 1332 | def subset (self): |
Behdad Esfahbod | 756af49 | 2013-08-01 12:05:26 -0400 | [diff] [blame] | 1333 | |
Behdad Esfahbod | 98259f2 | 2013-07-31 20:16:24 -0400 | [diff] [blame] | 1334 | self.font.recalcBBoxes = self.options.recalc_bboxes |
| 1335 | |
| 1336 | self.pre_prune () |
| 1337 | self.closure_glyphs () |
| 1338 | self.subset_glyphs () |
| 1339 | self.post_prune () |
| 1340 | |
Behdad Esfahbod | 756af49 | 2013-08-01 12:05:26 -0400 | [diff] [blame] | 1341 | del self.font |
| 1342 | |
Behdad Esfahbod | df3d757 | 2013-07-31 15:03:43 -0400 | [diff] [blame] | 1343 | import sys, time |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 1344 | |
Behdad Esfahbod | df3d757 | 2013-07-31 15:03:43 -0400 | [diff] [blame] | 1345 | class Logger: |
| 1346 | |
| 1347 | def __init__ (self, verbose=False, xml=False, timing=False): |
| 1348 | self.verbose = verbose |
| 1349 | self.xml = xml |
| 1350 | self.timing = timing |
| 1351 | self.last_time = self.start_time = time.time () |
| 1352 | |
| 1353 | def parse_opts (self, argv): |
| 1354 | argv = argv[:] |
| 1355 | for v in ['verbose', 'xml', 'timing']: |
| 1356 | if "--"+v in argv: |
| 1357 | setattr (self, v, True) |
| 1358 | argv.remove ("--"+v) |
| 1359 | return argv |
| 1360 | |
| 1361 | def __call__ (self, *things): |
| 1362 | if not self.verbose: |
| 1363 | return |
| 1364 | print ' '.join (str (x) for x in things) |
| 1365 | |
| 1366 | def lapse (self, *things): |
| 1367 | if not self.timing: |
| 1368 | return |
| 1369 | new_time = time.time () |
| 1370 | print "Took %0.3fs to %s" % (new_time - self.last_time, ' '.join (str (x) for x in things)) |
| 1371 | self.last_time = new_time |
| 1372 | |
Behdad Esfahbod | f549784 | 2013-08-08 21:57:02 -0400 | [diff] [blame] | 1373 | def glyphs (self, glyphs, glyph_names=True, font=None): |
| 1374 | self ("Names: ", sorted (glyphs)) |
| 1375 | if font: |
| 1376 | glyphOrder = font.getGlyphOrder() |
| 1377 | self ("Gids : ", sorted (glyphOrder.index (g) for g in glyphs)) |
| 1378 | |
Behdad Esfahbod | df3d757 | 2013-07-31 15:03:43 -0400 | [diff] [blame] | 1379 | def font (self, font, file=sys.stdout): |
| 1380 | if not self.xml: |
| 1381 | return |
| 1382 | import xmlWriter, sys |
| 1383 | writer = xmlWriter.XMLWriter (file) |
| 1384 | font.disassembleInstructions = False # Work around ttx bug |
| 1385 | for tag in font.keys(): |
| 1386 | writer.begintag (tag) |
| 1387 | writer.newline () |
| 1388 | font[tag].toXML(writer, font) |
| 1389 | writer.endtag (tag) |
| 1390 | writer.newline () |
| 1391 | |
Behdad Esfahbod | f6b668e | 2013-08-13 12:20:59 -0400 | [diff] [blame^] | 1392 | |
| 1393 | def load_font (fontfile, dont_load_glyph_names=False): |
| 1394 | |
| 1395 | # TODO Option for ignoreDecompileErrors? |
| 1396 | |
| 1397 | font = fontTools.ttx.TTFont (fontfile) |
| 1398 | |
| 1399 | # Hack: |
| 1400 | # |
| 1401 | # If we don't need glyph names, change 'post' class to not try to |
| 1402 | # load them. It avoid lots of headache with broken fonts as well |
| 1403 | # as loading time. |
| 1404 | # |
| 1405 | # Ideally ttLib should provide a way to ask it to skip loading |
| 1406 | # glyph names. But it currently doesn't provide such a thing. |
| 1407 | # |
| 1408 | if dont_load_glyph_names: |
| 1409 | post = fontTools.ttLib.getTableClass('post') |
| 1410 | saved = post.decode_format_2_0 |
| 1411 | post.decode_format_2_0 = post.decode_format_3_0 |
| 1412 | f = font['post'] |
| 1413 | if f.formatType == 2.0: |
| 1414 | f.formatType = 3.0 |
| 1415 | post.decode_format_2_0 = saved |
| 1416 | |
| 1417 | return font |
| 1418 | |
| 1419 | |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 1420 | def main (args): |
Behdad Esfahbod | 610b055 | 2013-07-23 14:52:18 -0400 | [diff] [blame] | 1421 | |
Behdad Esfahbod | df3d757 | 2013-07-31 15:03:43 -0400 | [diff] [blame] | 1422 | log = Logger () |
| 1423 | args = log.parse_opts (args) |
Behdad Esfahbod | 4ae8171 | 2013-07-22 11:57:13 -0400 | [diff] [blame] | 1424 | |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 1425 | options = Subsetter.Options () |
| 1426 | args = options.parse_opts (args) |
| 1427 | |
Behdad Esfahbod | df3d757 | 2013-07-31 15:03:43 -0400 | [diff] [blame] | 1428 | if len (args) < 2: |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 1429 | import sys |
Behdad Esfahbod | 02b9206 | 2013-07-21 18:40:59 -0400 | [diff] [blame] | 1430 | print >>sys.stderr, "usage: pyotlss.py font-file glyph..." |
| 1431 | sys.exit (1) |
| 1432 | |
Behdad Esfahbod | df3d757 | 2013-07-31 15:03:43 -0400 | [diff] [blame] | 1433 | fontfile = args[0] |
Behdad Esfahbod | e7f5a89 | 2013-07-31 19:58:59 -0400 | [diff] [blame] | 1434 | args = args[1:] |
Behdad Esfahbod | 02b9206 | 2013-07-21 18:40:59 -0400 | [diff] [blame] | 1435 | |
Behdad Esfahbod | f6b668e | 2013-08-13 12:20:59 -0400 | [diff] [blame^] | 1436 | dont_load_glyph_names = not options.glyph_names and \ |
| 1437 | all (any (g.startswith (p) \ |
| 1438 | for p in ['gid', 'glyph', 'uni', 'U+']) \ |
| 1439 | for g in args) |
| 1440 | |
| 1441 | font = load_font (fontfile, dont_load_glyph_names=dont_load_glyph_names) |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 1442 | s = Subsetter (font=font, options=options, log=log) |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 1443 | log.lapse ("load font") |
Behdad Esfahbod | 02b9206 | 2013-07-21 18:40:59 -0400 | [diff] [blame] | 1444 | |
Behdad Esfahbod | 6df089a | 2013-07-31 19:27:14 -0400 | [diff] [blame] | 1445 | names = font.getGlyphNames() |
| 1446 | log.lapse ("loading glyph names") |
Behdad Esfahbod | e7f5a89 | 2013-07-31 19:58:59 -0400 | [diff] [blame] | 1447 | |
| 1448 | glyphs = [] |
Behdad Esfahbod | 8c8ff45 | 2013-07-31 19:47:37 -0400 | [diff] [blame] | 1449 | unicodes = [] |
Behdad Esfahbod | e7f5a89 | 2013-07-31 19:58:59 -0400 | [diff] [blame] | 1450 | for g in args: |
Behdad Esfahbod | 6df089a | 2013-07-31 19:27:14 -0400 | [diff] [blame] | 1451 | if g in names: |
Behdad Esfahbod | e7f5a89 | 2013-07-31 19:58:59 -0400 | [diff] [blame] | 1452 | glyphs.append (g) |
Behdad Esfahbod | 6df089a | 2013-07-31 19:27:14 -0400 | [diff] [blame] | 1453 | continue |
Behdad Esfahbod | 9ae5d28 | 2013-08-08 21:18:17 -0400 | [diff] [blame] | 1454 | if g.startswith ('uni') or g.startswith ('U+'): |
| 1455 | if g.startswith ('uni') and len (g) > 3: |
| 1456 | g = g[3:] |
| 1457 | elif g.startswith ('U+') and len (g) > 2: |
| 1458 | g = g[2:] |
| 1459 | u = int (g, 16) |
Behdad Esfahbod | 8c8ff45 | 2013-07-31 19:47:37 -0400 | [diff] [blame] | 1460 | unicodes.append (u) |
Behdad Esfahbod | 6df089a | 2013-07-31 19:27:14 -0400 | [diff] [blame] | 1461 | continue |
| 1462 | if g.startswith ('gid') or g.startswith ('glyph'): |
| 1463 | if g.startswith ('gid') and len (g) > 3: |
| 1464 | g = g[3:] |
| 1465 | elif g.startswith ('glyph') and len (g) > 5: |
| 1466 | g = g[5:] |
| 1467 | try: |
Behdad Esfahbod | e7f5a89 | 2013-07-31 19:58:59 -0400 | [diff] [blame] | 1468 | glyphs.append (font.getGlyphName (int (g), requireReal=1)) |
Behdad Esfahbod | 6df089a | 2013-07-31 19:27:14 -0400 | [diff] [blame] | 1469 | except ValueError: |
| 1470 | raise Exception ("Invalid glyph identifier %s" % g) |
| 1471 | continue |
| 1472 | raise Exception ("Invalid glyph identifier %s" % g) |
Behdad Esfahbod | 6df089a | 2013-07-31 19:27:14 -0400 | [diff] [blame] | 1473 | log.lapse ("compile glyph list") |
Behdad Esfahbod | e7f5a89 | 2013-07-31 19:58:59 -0400 | [diff] [blame] | 1474 | log ("Unicodes:", unicodes) |
Behdad Esfahbod | 6df089a | 2013-07-31 19:27:14 -0400 | [diff] [blame] | 1475 | log ("Glyphs:", glyphs) |
| 1476 | |
Behdad Esfahbod | 8c8ff45 | 2013-07-31 19:47:37 -0400 | [diff] [blame] | 1477 | s.populate (glyphs=glyphs, unicodes=unicodes) |
Behdad Esfahbod | f6b668e | 2013-08-13 12:20:59 -0400 | [diff] [blame^] | 1478 | s.subset () |
Behdad Esfahbod | d1d41bc | 2013-07-21 23:15:32 -0400 | [diff] [blame] | 1479 | |
Behdad Esfahbod | de71dca | 2013-07-24 12:40:54 -0400 | [diff] [blame] | 1480 | font.save (fontfile + '.subset') |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 1481 | log.lapse ("compile and save font") |
Behdad Esfahbod | de71dca | 2013-07-24 12:40:54 -0400 | [diff] [blame] | 1482 | |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 1483 | log.last_time = s.log.start_time |
| 1484 | log.lapse ("make one with everything (TOTAL TIME)") |
Behdad Esfahbod | de71dca | 2013-07-24 12:40:54 -0400 | [diff] [blame] | 1485 | |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 1486 | log.font (font) |
Behdad Esfahbod | 8c486d8 | 2013-07-24 13:34:47 -0400 | [diff] [blame] | 1487 | |
| 1488 | if __name__ == '__main__': |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 1489 | import sys |
| 1490 | main (sys.argv[1:]) |