Behdad Esfahbod | 0fe6a51 | 2013-07-23 11:17:35 -0400 | [diff] [blame] | 1 | # Copyright 2013 Google, Inc. All Rights Reserved. |
| 2 | # |
Behdad Esfahbod | 0fe6a51 | 2013-07-23 11:17:35 -0400 | [diff] [blame] | 3 | # Google Author(s): Behdad Esfahbod |
Behdad Esfahbod | 616d36e | 2013-08-13 20:02:59 -0400 | [diff] [blame] | 4 | |
| 5 | """Python OpenType Layout Subsetter. |
| 6 | |
| 7 | Later grown into full OpenType subsetter, supporting all standard tables. |
| 8 | """ |
| 9 | |
Behdad Esfahbod | 1ae2959 | 2014-01-14 15:07:50 +0800 | [diff] [blame] | 10 | from __future__ import print_function, division, absolute_import |
Behdad Esfahbod | cfeafd7 | 2013-11-27 17:27:35 -0500 | [diff] [blame] | 11 | from fontTools.misc.py23 import * |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 12 | from fontTools import ttLib |
| 13 | from fontTools.ttLib.tables import otTables |
| 14 | from fontTools.misc import psCharStrings |
| 15 | from fontTools.pens import basePen |
Behdad Esfahbod | cfeafd7 | 2013-11-27 17:27:35 -0500 | [diff] [blame] | 16 | import sys |
| 17 | import struct |
| 18 | import time |
| 19 | import array |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 20 | |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 21 | |
Behdad Esfahbod | 22f5cfc | 2013-08-13 20:25:37 -0400 | [diff] [blame] | 22 | def _add_method(*clazzes): |
Behdad Esfahbod | 616d36e | 2013-08-13 20:02:59 -0400 | [diff] [blame] | 23 | """Returns a decorator function that adds a new method to one or |
| 24 | more classes.""" |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 25 | def wrapper(method): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 26 | for clazz in clazzes: |
| 27 | assert clazz.__name__ != 'DefaultTable', 'Oops, table class not found.' |
Behdad Esfahbod | 553c3bb | 2013-11-27 02:24:11 -0500 | [diff] [blame] | 28 | assert not hasattr(clazz, method.__name__), \ |
Behdad Esfahbod | d77f157 | 2013-08-15 19:24:36 -0400 | [diff] [blame] | 29 | "Oops, class '%s' has method '%s'." % (clazz.__name__, |
Behdad Esfahbod | 553c3bb | 2013-11-27 02:24:11 -0500 | [diff] [blame] | 30 | method.__name__) |
| 31 | setattr(clazz, method.__name__, method) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 32 | return None |
| 33 | return wrapper |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 34 | |
Behdad Esfahbod | 22f5cfc | 2013-08-13 20:25:37 -0400 | [diff] [blame] | 35 | def _uniq_sort(l): |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 36 | return sorted(set(l)) |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 37 | |
Behdad Esfahbod | 42d4f2b | 2013-08-16 16:16:22 -0400 | [diff] [blame] | 38 | def _set_update(s, *others): |
| 39 | # Jython's set.update only takes one other argument. |
| 40 | # Emulate real set.update... |
| 41 | for other in others: |
| 42 | s.update(other) |
| 43 | |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 44 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 45 | @_add_method(otTables.Coverage) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 46 | def intersect(self, glyphs): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 47 | "Returns ascending list of matching coverage values." |
Behdad Esfahbod | 4734be5 | 2013-08-14 19:47:42 -0400 | [diff] [blame] | 48 | return [i for i,g in enumerate(self.glyphs) if g in glyphs] |
Behdad Esfahbod | 610b055 | 2013-07-23 14:52:18 -0400 | [diff] [blame] | 49 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 50 | @_add_method(otTables.Coverage) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 51 | def intersect_glyphs(self, glyphs): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 52 | "Returns set of intersecting glyphs." |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 53 | return set(g for g in self.glyphs if g in glyphs) |
Behdad Esfahbod | 849d25c | 2013-08-12 19:24:24 -0400 | [diff] [blame] | 54 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 55 | @_add_method(otTables.Coverage) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 56 | def subset(self, glyphs): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 57 | "Returns ascending list of remaining coverage values." |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 58 | indices = self.intersect(glyphs) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 59 | self.glyphs = [g for g in self.glyphs if g in glyphs] |
| 60 | return indices |
Behdad Esfahbod | d1d41bc | 2013-07-21 23:15:32 -0400 | [diff] [blame] | 61 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 62 | @_add_method(otTables.Coverage) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 63 | def remap(self, coverage_map): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 64 | "Remaps coverage." |
| 65 | self.glyphs = [self.glyphs[i] for i in coverage_map] |
Behdad Esfahbod | 1437426 | 2013-08-08 22:26:49 -0400 | [diff] [blame] | 66 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 67 | @_add_method(otTables.ClassDef) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 68 | def intersect(self, glyphs): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 69 | "Returns ascending list of matching class values." |
Behdad Esfahbod | 22f5cfc | 2013-08-13 20:25:37 -0400 | [diff] [blame] | 70 | return _uniq_sort( |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 71 | ([0] if any(g not in self.classDefs for g in glyphs) else []) + |
Behdad Esfahbod | 6890d05 | 2013-11-27 06:26:35 -0500 | [diff] [blame] | 72 | [v for g,v in self.classDefs.items() if g in glyphs]) |
Behdad Esfahbod | b8d5588 | 2013-07-23 22:17:39 -0400 | [diff] [blame] | 73 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 74 | @_add_method(otTables.ClassDef) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 75 | def intersect_class(self, glyphs, klass): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 76 | "Returns set of glyphs matching class." |
| 77 | if klass == 0: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 78 | return set(g for g in glyphs if g not in self.classDefs) |
Behdad Esfahbod | 6890d05 | 2013-11-27 06:26:35 -0500 | [diff] [blame] | 79 | return set(g for g,v in self.classDefs.items() |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 80 | if v == klass and g in glyphs) |
Behdad Esfahbod | b8d5588 | 2013-07-23 22:17:39 -0400 | [diff] [blame] | 81 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 82 | @_add_method(otTables.ClassDef) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 83 | def subset(self, glyphs, remap=False): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 84 | "Returns ascending list of remaining classes." |
Behdad Esfahbod | 6890d05 | 2013-11-27 06:26:35 -0500 | [diff] [blame] | 85 | self.classDefs = dict((g,v) for g,v in self.classDefs.items() if g in glyphs) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 86 | # Note: while class 0 has the special meaning of "not matched", |
| 87 | # if no glyph will ever /not match/, we can optimize class 0 out too. |
Behdad Esfahbod | 22f5cfc | 2013-08-13 20:25:37 -0400 | [diff] [blame] | 88 | indices = _uniq_sort( |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 89 | ([0] if any(g not in self.classDefs for g in glyphs) else []) + |
Behdad Esfahbod | 6890d05 | 2013-11-27 06:26:35 -0500 | [diff] [blame] | 90 | list(self.classDefs.values())) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 91 | if remap: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 92 | self.remap(indices) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 93 | return indices |
Behdad Esfahbod | 4aa6ce3 | 2013-07-22 12:15:36 -0400 | [diff] [blame] | 94 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 95 | @_add_method(otTables.ClassDef) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 96 | def remap(self, class_map): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 97 | "Remaps classes." |
Behdad Esfahbod | d73f225 | 2013-08-16 10:58:25 -0400 | [diff] [blame] | 98 | self.classDefs = dict((g,class_map.index(v)) |
Behdad Esfahbod | 6890d05 | 2013-11-27 06:26:35 -0500 | [diff] [blame] | 99 | for g,v in self.classDefs.items()) |
Behdad Esfahbod | d1d41bc | 2013-07-21 23:15:32 -0400 | [diff] [blame] | 100 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 101 | @_add_method(otTables.SingleSubst) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 102 | def closure_glyphs(self, s, cur_glyphs=None): |
Behdad Esfahbod | 9e6ef94 | 2013-12-04 16:31:44 -0500 | [diff] [blame] | 103 | if cur_glyphs is None: cur_glyphs = s.glyphs |
Behdad Esfahbod | 45ed572 | 2013-12-17 06:01:08 -0500 | [diff] [blame] | 104 | 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] | 105 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 106 | @_add_method(otTables.SingleSubst) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 107 | def subset_glyphs(self, s): |
Behdad Esfahbod | 45ed572 | 2013-12-17 06:01:08 -0500 | [diff] [blame] | 108 | self.mapping = dict((g,v) for g,v in self.mapping.items() |
| 109 | if g in s.glyphs and v in s.glyphs) |
| 110 | return bool(self.mapping) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 111 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 112 | @_add_method(otTables.MultipleSubst) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 113 | def closure_glyphs(self, s, cur_glyphs=None): |
Behdad Esfahbod | 9e6ef94 | 2013-12-04 16:31:44 -0500 | [diff] [blame] | 114 | if cur_glyphs is None: cur_glyphs = s.glyphs |
Behdad Esfahbod | 45ed572 | 2013-12-17 06:01:08 -0500 | [diff] [blame] | 115 | indices = self.Coverage.intersect(cur_glyphs) |
| 116 | _set_update(s.glyphs, *(self.Sequence[i].Substitute for i in indices)) |
Behdad Esfahbod | 610b055 | 2013-07-23 14:52:18 -0400 | [diff] [blame] | 117 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 118 | @_add_method(otTables.MultipleSubst) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 119 | def subset_glyphs(self, s): |
Behdad Esfahbod | 45ed572 | 2013-12-17 06:01:08 -0500 | [diff] [blame] | 120 | indices = self.Coverage.subset(s.glyphs) |
| 121 | self.Sequence = [self.Sequence[i] for i in indices] |
| 122 | # Now drop rules generating glyphs we don't want |
| 123 | indices = [i for i,seq in enumerate(self.Sequence) |
| 124 | if all(sub in s.glyphs for sub in seq.Substitute)] |
| 125 | self.Sequence = [self.Sequence[i] for i in indices] |
| 126 | self.Coverage.remap(indices) |
| 127 | self.SequenceCount = len(self.Sequence) |
| 128 | return bool(self.SequenceCount) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 129 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 130 | @_add_method(otTables.AlternateSubst) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 131 | def closure_glyphs(self, s, cur_glyphs=None): |
Behdad Esfahbod | 9e6ef94 | 2013-12-04 16:31:44 -0500 | [diff] [blame] | 132 | if cur_glyphs is None: cur_glyphs = s.glyphs |
Behdad Esfahbod | 45ed572 | 2013-12-17 06:01:08 -0500 | [diff] [blame] | 133 | _set_update(s.glyphs, *(vlist for g,vlist in self.alternates.items() |
| 134 | if g in cur_glyphs)) |
Behdad Esfahbod | 610b055 | 2013-07-23 14:52:18 -0400 | [diff] [blame] | 135 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 136 | @_add_method(otTables.AlternateSubst) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 137 | def subset_glyphs(self, s): |
Behdad Esfahbod | 45ed572 | 2013-12-17 06:01:08 -0500 | [diff] [blame] | 138 | self.alternates = dict((g,vlist) |
| 139 | for g,vlist in self.alternates.items() |
| 140 | if g in s.glyphs and |
| 141 | all(v in s.glyphs for v in vlist)) |
| 142 | return bool(self.alternates) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 143 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 144 | @_add_method(otTables.LigatureSubst) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 145 | def closure_glyphs(self, s, cur_glyphs=None): |
Behdad Esfahbod | 9e6ef94 | 2013-12-04 16:31:44 -0500 | [diff] [blame] | 146 | if cur_glyphs is None: cur_glyphs = s.glyphs |
Behdad Esfahbod | 45ed572 | 2013-12-17 06:01:08 -0500 | [diff] [blame] | 147 | _set_update(s.glyphs, *([seq.LigGlyph for seq in seqs |
| 148 | if all(c in s.glyphs for c in seq.Component)] |
| 149 | for g,seqs in self.ligatures.items() |
| 150 | if g in cur_glyphs)) |
Behdad Esfahbod | 610b055 | 2013-07-23 14:52:18 -0400 | [diff] [blame] | 151 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 152 | @_add_method(otTables.LigatureSubst) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 153 | def subset_glyphs(self, s): |
Behdad Esfahbod | 45ed572 | 2013-12-17 06:01:08 -0500 | [diff] [blame] | 154 | self.ligatures = dict((g,v) for g,v in self.ligatures.items() |
| 155 | if g in s.glyphs) |
| 156 | self.ligatures = dict((g,[seq for seq in seqs |
| 157 | if seq.LigGlyph in s.glyphs and |
| 158 | all(c in s.glyphs for c in seq.Component)]) |
| 159 | for g,seqs in self.ligatures.items()) |
| 160 | self.ligatures = dict((g,v) for g,v in self.ligatures.items() if v) |
| 161 | return bool(self.ligatures) |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 162 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 163 | @_add_method(otTables.ReverseChainSingleSubst) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 164 | def closure_glyphs(self, s, cur_glyphs=None): |
Behdad Esfahbod | 9e6ef94 | 2013-12-04 16:31:44 -0500 | [diff] [blame] | 165 | if cur_glyphs is None: cur_glyphs = s.glyphs |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 166 | if self.Format == 1: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 167 | indices = self.Coverage.intersect(cur_glyphs) |
| 168 | if(not indices or |
| 169 | not all(c.intersect(s.glyphs) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 170 | for c in self.LookAheadCoverage + self.BacktrackCoverage)): |
| 171 | return |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 172 | s.glyphs.update(self.Substitute[i] for i in indices) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 173 | else: |
| 174 | assert 0, "unknown format: %s" % self.Format |
Behdad Esfahbod | 610b055 | 2013-07-23 14:52:18 -0400 | [diff] [blame] | 175 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 176 | @_add_method(otTables.ReverseChainSingleSubst) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 177 | def subset_glyphs(self, s): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 178 | if self.Format == 1: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 179 | indices = self.Coverage.subset(s.glyphs) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 180 | self.Substitute = [self.Substitute[i] for i in indices] |
| 181 | # Now drop rules generating glyphs we don't want |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 182 | indices = [i for i,sub in enumerate(self.Substitute) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 183 | if sub in s.glyphs] |
| 184 | self.Substitute = [self.Substitute[i] for i in indices] |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 185 | self.Coverage.remap(indices) |
| 186 | self.GlyphCount = len(self.Substitute) |
| 187 | return bool(self.GlyphCount and |
| 188 | all(c.subset(s.glyphs) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 189 | for c in self.LookAheadCoverage+self.BacktrackCoverage)) |
| 190 | else: |
| 191 | assert 0, "unknown format: %s" % self.Format |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 192 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 193 | @_add_method(otTables.SinglePos) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 194 | def subset_glyphs(self, s): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 195 | if self.Format == 1: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 196 | return len(self.Coverage.subset(s.glyphs)) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 197 | elif self.Format == 2: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 198 | indices = self.Coverage.subset(s.glyphs) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 199 | self.Value = [self.Value[i] for i in indices] |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 200 | self.ValueCount = len(self.Value) |
| 201 | return bool(self.ValueCount) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 202 | else: |
| 203 | assert 0, "unknown format: %s" % self.Format |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 204 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 205 | @_add_method(otTables.SinglePos) |
Behdad Esfahbod | d77f157 | 2013-08-15 19:24:36 -0400 | [diff] [blame] | 206 | def prune_post_subset(self, options): |
| 207 | if not options.hinting: |
| 208 | # Drop device tables |
| 209 | self.ValueFormat &= ~0x00F0 |
| 210 | return True |
| 211 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 212 | @_add_method(otTables.PairPos) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 213 | def subset_glyphs(self, s): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 214 | if self.Format == 1: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 215 | indices = self.Coverage.subset(s.glyphs) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 216 | self.PairSet = [self.PairSet[i] for i in indices] |
| 217 | for p in self.PairSet: |
| 218 | p.PairValueRecord = [r for r in p.PairValueRecord |
| 219 | if r.SecondGlyph in s.glyphs] |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 220 | p.PairValueCount = len(p.PairValueRecord) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 221 | self.PairSet = [p for p in self.PairSet if p.PairValueCount] |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 222 | self.PairSetCount = len(self.PairSet) |
| 223 | return bool(self.PairSetCount) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 224 | elif self.Format == 2: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 225 | class1_map = self.ClassDef1.subset(s.glyphs, remap=True) |
| 226 | class2_map = self.ClassDef2.subset(s.glyphs, remap=True) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 227 | self.Class1Record = [self.Class1Record[i] for i in class1_map] |
| 228 | for c in self.Class1Record: |
| 229 | c.Class2Record = [c.Class2Record[i] for i in class2_map] |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 230 | self.Class1Count = len(class1_map) |
| 231 | self.Class2Count = len(class2_map) |
| 232 | return bool(self.Class1Count and |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 233 | self.Class2Count and |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 234 | self.Coverage.subset(s.glyphs)) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 235 | else: |
| 236 | assert 0, "unknown format: %s" % self.Format |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 237 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 238 | @_add_method(otTables.PairPos) |
Behdad Esfahbod | d77f157 | 2013-08-15 19:24:36 -0400 | [diff] [blame] | 239 | def prune_post_subset(self, options): |
| 240 | if not options.hinting: |
| 241 | # Drop device tables |
| 242 | self.ValueFormat1 &= ~0x00F0 |
| 243 | self.ValueFormat2 &= ~0x00F0 |
| 244 | return True |
| 245 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 246 | @_add_method(otTables.CursivePos) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 247 | def subset_glyphs(self, s): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 248 | if self.Format == 1: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 249 | indices = self.Coverage.subset(s.glyphs) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 250 | self.EntryExitRecord = [self.EntryExitRecord[i] for i in indices] |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 251 | self.EntryExitCount = len(self.EntryExitRecord) |
| 252 | return bool(self.EntryExitCount) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 253 | else: |
| 254 | assert 0, "unknown format: %s" % self.Format |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 255 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 256 | @_add_method(otTables.Anchor) |
Behdad Esfahbod | d77f157 | 2013-08-15 19:24:36 -0400 | [diff] [blame] | 257 | def prune_hints(self): |
| 258 | # Drop device tables / contour anchor point |
Behdad Esfahbod | 6c51f50 | 2013-12-15 23:12:26 -0500 | [diff] [blame] | 259 | self.ensureDecompiled() |
Behdad Esfahbod | d77f157 | 2013-08-15 19:24:36 -0400 | [diff] [blame] | 260 | self.Format = 1 |
| 261 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 262 | @_add_method(otTables.CursivePos) |
Behdad Esfahbod | d77f157 | 2013-08-15 19:24:36 -0400 | [diff] [blame] | 263 | def prune_post_subset(self, options): |
| 264 | if not options.hinting: |
| 265 | for rec in self.EntryExitRecord: |
| 266 | if rec.EntryAnchor: rec.EntryAnchor.prune_hints() |
| 267 | if rec.ExitAnchor: rec.ExitAnchor.prune_hints() |
| 268 | return True |
| 269 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 270 | @_add_method(otTables.MarkBasePos) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 271 | def subset_glyphs(self, s): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 272 | if self.Format == 1: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 273 | mark_indices = self.MarkCoverage.subset(s.glyphs) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 274 | self.MarkArray.MarkRecord = [self.MarkArray.MarkRecord[i] |
| 275 | for i in mark_indices] |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 276 | self.MarkArray.MarkCount = len(self.MarkArray.MarkRecord) |
| 277 | base_indices = self.BaseCoverage.subset(s.glyphs) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 278 | self.BaseArray.BaseRecord = [self.BaseArray.BaseRecord[i] |
| 279 | for i in base_indices] |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 280 | self.BaseArray.BaseCount = len(self.BaseArray.BaseRecord) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 281 | # Prune empty classes |
Behdad Esfahbod | 22f5cfc | 2013-08-13 20:25:37 -0400 | [diff] [blame] | 282 | class_indices = _uniq_sort(v.Class for v in self.MarkArray.MarkRecord) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 283 | self.ClassCount = len(class_indices) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 284 | for m in self.MarkArray.MarkRecord: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 285 | m.Class = class_indices.index(m.Class) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 286 | for b in self.BaseArray.BaseRecord: |
| 287 | b.BaseAnchor = [b.BaseAnchor[i] for i in class_indices] |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 288 | return bool(self.ClassCount and |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 289 | self.MarkArray.MarkCount and |
| 290 | self.BaseArray.BaseCount) |
| 291 | else: |
| 292 | assert 0, "unknown format: %s" % self.Format |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 293 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 294 | @_add_method(otTables.MarkBasePos) |
Behdad Esfahbod | d77f157 | 2013-08-15 19:24:36 -0400 | [diff] [blame] | 295 | def prune_post_subset(self, options): |
| 296 | if not options.hinting: |
| 297 | for m in self.MarkArray.MarkRecord: |
Behdad Esfahbod | e1a010c | 2013-10-09 15:57:22 +0200 | [diff] [blame] | 298 | if m.MarkAnchor: |
| 299 | m.MarkAnchor.prune_hints() |
Behdad Esfahbod | d77f157 | 2013-08-15 19:24:36 -0400 | [diff] [blame] | 300 | for b in self.BaseArray.BaseRecord: |
| 301 | for a in b.BaseAnchor: |
Behdad Esfahbod | e1a010c | 2013-10-09 15:57:22 +0200 | [diff] [blame] | 302 | if a: |
| 303 | a.prune_hints() |
Behdad Esfahbod | d77f157 | 2013-08-15 19:24:36 -0400 | [diff] [blame] | 304 | return True |
| 305 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 306 | @_add_method(otTables.MarkLigPos) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 307 | def subset_glyphs(self, s): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 308 | if self.Format == 1: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 309 | mark_indices = self.MarkCoverage.subset(s.glyphs) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 310 | self.MarkArray.MarkRecord = [self.MarkArray.MarkRecord[i] |
| 311 | for i in mark_indices] |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 312 | self.MarkArray.MarkCount = len(self.MarkArray.MarkRecord) |
| 313 | ligature_indices = self.LigatureCoverage.subset(s.glyphs) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 314 | self.LigatureArray.LigatureAttach = [self.LigatureArray.LigatureAttach[i] |
| 315 | for i in ligature_indices] |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 316 | self.LigatureArray.LigatureCount = len(self.LigatureArray.LigatureAttach) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 317 | # Prune empty classes |
Behdad Esfahbod | 22f5cfc | 2013-08-13 20:25:37 -0400 | [diff] [blame] | 318 | class_indices = _uniq_sort(v.Class for v in self.MarkArray.MarkRecord) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 319 | self.ClassCount = len(class_indices) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 320 | for m in self.MarkArray.MarkRecord: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 321 | m.Class = class_indices.index(m.Class) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 322 | for l in self.LigatureArray.LigatureAttach: |
| 323 | for c in l.ComponentRecord: |
| 324 | c.LigatureAnchor = [c.LigatureAnchor[i] for i in class_indices] |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 325 | return bool(self.ClassCount and |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 326 | self.MarkArray.MarkCount and |
| 327 | self.LigatureArray.LigatureCount) |
| 328 | else: |
| 329 | assert 0, "unknown format: %s" % self.Format |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 330 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 331 | @_add_method(otTables.MarkLigPos) |
Behdad Esfahbod | d77f157 | 2013-08-15 19:24:36 -0400 | [diff] [blame] | 332 | def prune_post_subset(self, options): |
| 333 | if not options.hinting: |
| 334 | for m in self.MarkArray.MarkRecord: |
Behdad Esfahbod | e1a010c | 2013-10-09 15:57:22 +0200 | [diff] [blame] | 335 | if m.MarkAnchor: |
| 336 | m.MarkAnchor.prune_hints() |
Behdad Esfahbod | d77f157 | 2013-08-15 19:24:36 -0400 | [diff] [blame] | 337 | for l in self.LigatureArray.LigatureAttach: |
| 338 | for c in l.ComponentRecord: |
| 339 | for a in c.LigatureAnchor: |
Behdad Esfahbod | e1a010c | 2013-10-09 15:57:22 +0200 | [diff] [blame] | 340 | if a: |
| 341 | a.prune_hints() |
Behdad Esfahbod | d77f157 | 2013-08-15 19:24:36 -0400 | [diff] [blame] | 342 | return True |
| 343 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 344 | @_add_method(otTables.MarkMarkPos) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 345 | def subset_glyphs(self, s): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 346 | if self.Format == 1: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 347 | mark1_indices = self.Mark1Coverage.subset(s.glyphs) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 348 | self.Mark1Array.MarkRecord = [self.Mark1Array.MarkRecord[i] |
| 349 | for i in mark1_indices] |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 350 | self.Mark1Array.MarkCount = len(self.Mark1Array.MarkRecord) |
| 351 | mark2_indices = self.Mark2Coverage.subset(s.glyphs) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 352 | self.Mark2Array.Mark2Record = [self.Mark2Array.Mark2Record[i] |
| 353 | for i in mark2_indices] |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 354 | self.Mark2Array.MarkCount = len(self.Mark2Array.Mark2Record) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 355 | # Prune empty classes |
Behdad Esfahbod | 22f5cfc | 2013-08-13 20:25:37 -0400 | [diff] [blame] | 356 | class_indices = _uniq_sort(v.Class for v in self.Mark1Array.MarkRecord) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 357 | self.ClassCount = len(class_indices) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 358 | for m in self.Mark1Array.MarkRecord: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 359 | m.Class = class_indices.index(m.Class) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 360 | for b in self.Mark2Array.Mark2Record: |
| 361 | b.Mark2Anchor = [b.Mark2Anchor[i] for i in class_indices] |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 362 | return bool(self.ClassCount and |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 363 | self.Mark1Array.MarkCount and |
| 364 | self.Mark2Array.MarkCount) |
| 365 | else: |
| 366 | assert 0, "unknown format: %s" % self.Format |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 367 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 368 | @_add_method(otTables.MarkMarkPos) |
Behdad Esfahbod | d77f157 | 2013-08-15 19:24:36 -0400 | [diff] [blame] | 369 | def prune_post_subset(self, options): |
| 370 | if not options.hinting: |
| 371 | # Drop device tables or contour anchor point |
| 372 | for m in self.Mark1Array.MarkRecord: |
Behdad Esfahbod | e1a010c | 2013-10-09 15:57:22 +0200 | [diff] [blame] | 373 | if m.MarkAnchor: |
| 374 | m.MarkAnchor.prune_hints() |
Behdad Esfahbod | d77f157 | 2013-08-15 19:24:36 -0400 | [diff] [blame] | 375 | for b in self.Mark2Array.Mark2Record: |
Behdad Esfahbod | 0ec17d9 | 2013-09-15 18:30:41 -0400 | [diff] [blame] | 376 | for m in b.Mark2Anchor: |
Behdad Esfahbod | e1a010c | 2013-10-09 15:57:22 +0200 | [diff] [blame] | 377 | if m: |
| 378 | m.prune_hints() |
Behdad Esfahbod | d77f157 | 2013-08-15 19:24:36 -0400 | [diff] [blame] | 379 | return True |
| 380 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 381 | @_add_method(otTables.SingleSubst, |
| 382 | otTables.MultipleSubst, |
| 383 | otTables.AlternateSubst, |
| 384 | otTables.LigatureSubst, |
| 385 | otTables.ReverseChainSingleSubst, |
| 386 | otTables.SinglePos, |
| 387 | otTables.PairPos, |
| 388 | otTables.CursivePos, |
| 389 | otTables.MarkBasePos, |
| 390 | otTables.MarkLigPos, |
| 391 | otTables.MarkMarkPos) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 392 | def subset_lookups(self, lookup_indices): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 393 | pass |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 394 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 395 | @_add_method(otTables.SingleSubst, |
| 396 | otTables.MultipleSubst, |
| 397 | otTables.AlternateSubst, |
| 398 | otTables.LigatureSubst, |
| 399 | otTables.ReverseChainSingleSubst, |
| 400 | otTables.SinglePos, |
| 401 | otTables.PairPos, |
| 402 | otTables.CursivePos, |
| 403 | otTables.MarkBasePos, |
| 404 | otTables.MarkLigPos, |
| 405 | otTables.MarkMarkPos) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 406 | def collect_lookups(self): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 407 | return [] |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 408 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 409 | @_add_method(otTables.SingleSubst, |
| 410 | otTables.MultipleSubst, |
| 411 | otTables.AlternateSubst, |
| 412 | otTables.LigatureSubst, |
| 413 | otTables.ContextSubst, |
| 414 | otTables.ChainContextSubst, |
| 415 | otTables.ReverseChainSingleSubst, |
| 416 | otTables.SinglePos, |
| 417 | otTables.PairPos, |
| 418 | otTables.CursivePos, |
| 419 | otTables.MarkBasePos, |
| 420 | otTables.MarkLigPos, |
| 421 | otTables.MarkMarkPos, |
| 422 | otTables.ContextPos, |
| 423 | otTables.ChainContextPos) |
Behdad Esfahbod | d77f157 | 2013-08-15 19:24:36 -0400 | [diff] [blame] | 424 | def prune_pre_subset(self, options): |
| 425 | return True |
| 426 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 427 | @_add_method(otTables.SingleSubst, |
| 428 | otTables.MultipleSubst, |
| 429 | otTables.AlternateSubst, |
| 430 | otTables.LigatureSubst, |
| 431 | otTables.ReverseChainSingleSubst, |
| 432 | otTables.ContextSubst, |
| 433 | otTables.ChainContextSubst, |
| 434 | otTables.ContextPos, |
| 435 | otTables.ChainContextPos) |
Behdad Esfahbod | d77f157 | 2013-08-15 19:24:36 -0400 | [diff] [blame] | 436 | def prune_post_subset(self, options): |
| 437 | return True |
| 438 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 439 | @_add_method(otTables.SingleSubst, |
| 440 | otTables.AlternateSubst, |
| 441 | otTables.ReverseChainSingleSubst) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 442 | def may_have_non_1to1(self): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 443 | return False |
Behdad Esfahbod | aeacc15 | 2013-08-12 20:24:33 -0400 | [diff] [blame] | 444 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 445 | @_add_method(otTables.MultipleSubst, |
| 446 | otTables.LigatureSubst, |
| 447 | otTables.ContextSubst, |
| 448 | otTables.ChainContextSubst) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 449 | def may_have_non_1to1(self): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 450 | return True |
Behdad Esfahbod | aeacc15 | 2013-08-12 20:24:33 -0400 | [diff] [blame] | 451 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 452 | @_add_method(otTables.ContextSubst, |
| 453 | otTables.ChainContextSubst, |
| 454 | otTables.ContextPos, |
| 455 | otTables.ChainContextPos) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 456 | def __classify_context(self): |
Behdad Esfahbod | b178dca | 2013-07-23 22:51:50 -0400 | [diff] [blame] | 457 | |
Behdad Esfahbod | 3d4c471 | 2013-08-13 20:10:17 -0400 | [diff] [blame] | 458 | class ContextHelper(object): |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 459 | def __init__(self, klass, Format): |
| 460 | if klass.__name__.endswith('Subst'): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 461 | Typ = 'Sub' |
| 462 | Type = 'Subst' |
| 463 | else: |
| 464 | Typ = 'Pos' |
| 465 | Type = 'Pos' |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 466 | if klass.__name__.startswith('Chain'): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 467 | Chain = 'Chain' |
| 468 | else: |
| 469 | Chain = '' |
| 470 | ChainTyp = Chain+Typ |
Behdad Esfahbod | 9e73572 | 2013-07-23 16:35:23 -0400 | [diff] [blame] | 471 | |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 472 | self.Typ = Typ |
| 473 | self.Type = Type |
| 474 | self.Chain = Chain |
| 475 | self.ChainTyp = ChainTyp |
Behdad Esfahbod | 9e73572 | 2013-07-23 16:35:23 -0400 | [diff] [blame] | 476 | |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 477 | self.LookupRecord = Type+'LookupRecord' |
Behdad Esfahbod | 9e73572 | 2013-07-23 16:35:23 -0400 | [diff] [blame] | 478 | |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 479 | if Format == 1: |
| 480 | Coverage = lambda r: r.Coverage |
| 481 | ChainCoverage = lambda r: r.Coverage |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 482 | ContextData = lambda r:(None,) |
| 483 | ChainContextData = lambda r:(None, None, None) |
| 484 | RuleData = lambda r:(r.Input,) |
| 485 | ChainRuleData = lambda r:(r.Backtrack, r.Input, r.LookAhead) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 486 | SetRuleData = None |
| 487 | ChainSetRuleData = None |
| 488 | elif Format == 2: |
| 489 | Coverage = lambda r: r.Coverage |
| 490 | ChainCoverage = lambda r: r.Coverage |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 491 | ContextData = lambda r:(r.ClassDef,) |
| 492 | ChainContextData = lambda r:(r.LookAheadClassDef, |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 493 | r.InputClassDef, |
| 494 | r.BacktrackClassDef) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 495 | RuleData = lambda r:(r.Class,) |
| 496 | ChainRuleData = lambda r:(r.LookAhead, r.Input, r.Backtrack) |
| 497 | def SetRuleData(r, d):(r.Class,) = d |
| 498 | def ChainSetRuleData(r, d):(r.LookAhead, r.Input, r.Backtrack) = d |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 499 | elif Format == 3: |
| 500 | Coverage = lambda r: r.Coverage[0] |
| 501 | ChainCoverage = lambda r: r.InputCoverage[0] |
| 502 | ContextData = None |
| 503 | ChainContextData = None |
| 504 | RuleData = lambda r: r.Coverage |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 505 | ChainRuleData = lambda r:(r.LookAheadCoverage + |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 506 | r.InputCoverage + |
| 507 | r.BacktrackCoverage) |
| 508 | SetRuleData = None |
| 509 | ChainSetRuleData = None |
| 510 | else: |
| 511 | assert 0, "unknown format: %s" % Format |
Behdad Esfahbod | 452ab6c | 2013-07-23 22:57:43 -0400 | [diff] [blame] | 512 | |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 513 | if Chain: |
| 514 | self.Coverage = ChainCoverage |
| 515 | self.ContextData = ChainContextData |
| 516 | self.RuleData = ChainRuleData |
| 517 | self.SetRuleData = ChainSetRuleData |
| 518 | else: |
| 519 | self.Coverage = Coverage |
| 520 | self.ContextData = ContextData |
| 521 | self.RuleData = RuleData |
| 522 | self.SetRuleData = SetRuleData |
Behdad Esfahbod | 9e73572 | 2013-07-23 16:35:23 -0400 | [diff] [blame] | 523 | |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 524 | if Format == 1: |
| 525 | self.Rule = ChainTyp+'Rule' |
| 526 | self.RuleCount = ChainTyp+'RuleCount' |
| 527 | self.RuleSet = ChainTyp+'RuleSet' |
| 528 | self.RuleSetCount = ChainTyp+'RuleSetCount' |
| 529 | self.Intersect = lambda glyphs, c, r: [r] if r in glyphs else [] |
| 530 | elif Format == 2: |
| 531 | self.Rule = ChainTyp+'ClassRule' |
| 532 | self.RuleCount = ChainTyp+'ClassRuleCount' |
| 533 | self.RuleSet = ChainTyp+'ClassSet' |
| 534 | self.RuleSetCount = ChainTyp+'ClassSetCount' |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 535 | self.Intersect = lambda glyphs, c, r: c.intersect_class(glyphs, r) |
Behdad Esfahbod | 8998700 | 2013-07-23 23:07:42 -0400 | [diff] [blame] | 536 | |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 537 | self.ClassDef = 'InputClassDef' if Chain else 'ClassDef' |
Behdad Esfahbod | 98b6075 | 2013-10-14 17:49:19 +0200 | [diff] [blame] | 538 | self.ClassDefIndex = 1 if Chain else 0 |
Behdad Esfahbod | 1176330 | 2013-08-14 15:33:08 -0400 | [diff] [blame] | 539 | self.Input = 'Input' if Chain else 'Class' |
Behdad Esfahbod | 2710839 | 2013-07-23 16:40:47 -0400 | [diff] [blame] | 540 | |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 541 | if self.Format not in [1, 2, 3]: |
Behdad Esfahbod | 318adc0 | 2013-08-13 20:09:28 -0400 | [diff] [blame] | 542 | return None # Don't shoot the messenger; let it go |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 543 | if not hasattr(self.__class__, "__ContextHelpers"): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 544 | self.__class__.__ContextHelpers = {} |
| 545 | if self.Format not in self.__class__.__ContextHelpers: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 546 | helper = ContextHelper(self.__class__, self.Format) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 547 | self.__class__.__ContextHelpers[self.Format] = helper |
| 548 | return self.__class__.__ContextHelpers[self.Format] |
Behdad Esfahbod | 44c2b3c | 2013-07-23 16:00:32 -0400 | [diff] [blame] | 549 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 550 | @_add_method(otTables.ContextSubst, |
| 551 | otTables.ChainContextSubst) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 552 | def closure_glyphs(self, s, cur_glyphs=None): |
Behdad Esfahbod | 9e6ef94 | 2013-12-04 16:31:44 -0500 | [diff] [blame] | 553 | if cur_glyphs is None: cur_glyphs = s.glyphs |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 554 | c = self.__classify_context() |
Behdad Esfahbod | 1ab2dbf | 2013-07-23 17:17:21 -0400 | [diff] [blame] | 555 | |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 556 | indices = c.Coverage(self).intersect(s.glyphs) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 557 | if not indices: |
| 558 | return [] |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 559 | cur_glyphs = c.Coverage(self).intersect_glyphs(s.glyphs); |
Behdad Esfahbod | 1d4fa13 | 2013-08-08 22:59:32 -0400 | [diff] [blame] | 560 | |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 561 | if self.Format == 1: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 562 | ContextData = c.ContextData(self) |
| 563 | rss = getattr(self, c.RuleSet) |
Behdad Esfahbod | 1117445 | 2013-11-18 20:20:49 -0500 | [diff] [blame] | 564 | rssCount = getattr(self, c.RuleSetCount) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 565 | for i in indices: |
Behdad Esfahbod | 1117445 | 2013-11-18 20:20:49 -0500 | [diff] [blame] | 566 | if i >= rssCount or not rss[i]: continue |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 567 | for r in getattr(rss[i], c.Rule): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 568 | if not r: continue |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 569 | if all(all(c.Intersect(s.glyphs, cd, k) for k in klist) |
| 570 | for cd,klist in zip(ContextData, c.RuleData(r))): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 571 | chaos = False |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 572 | for ll in getattr(r, c.LookupRecord): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 573 | if not ll: continue |
| 574 | seqi = ll.SequenceIndex |
Behdad Esfahbod | 348f858 | 2013-08-20 11:50:04 -0400 | [diff] [blame] | 575 | if chaos: |
| 576 | pos_glyphs = s.glyphs |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 577 | else: |
Behdad Esfahbod | 348f858 | 2013-08-20 11:50:04 -0400 | [diff] [blame] | 578 | if seqi == 0: |
| 579 | pos_glyphs = set([c.Coverage(self).glyphs[i]]) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 580 | else: |
Behdad Esfahbod | d3fdcc7 | 2013-08-14 17:59:31 -0400 | [diff] [blame] | 581 | pos_glyphs = set([r.Input[seqi - 1]]) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 582 | lookup = s.table.LookupList.Lookup[ll.LookupListIndex] |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 583 | chaos = chaos or lookup.may_have_non_1to1() |
| 584 | lookup.closure_glyphs(s, cur_glyphs=pos_glyphs) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 585 | elif self.Format == 2: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 586 | ClassDef = getattr(self, c.ClassDef) |
| 587 | indices = ClassDef.intersect(cur_glyphs) |
| 588 | ContextData = c.ContextData(self) |
| 589 | rss = getattr(self, c.RuleSet) |
Behdad Esfahbod | 1117445 | 2013-11-18 20:20:49 -0500 | [diff] [blame] | 590 | rssCount = getattr(self, c.RuleSetCount) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 591 | for i in indices: |
Behdad Esfahbod | 1117445 | 2013-11-18 20:20:49 -0500 | [diff] [blame] | 592 | if i >= rssCount or not rss[i]: continue |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 593 | for r in getattr(rss[i], c.Rule): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 594 | if not r: continue |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 595 | if all(all(c.Intersect(s.glyphs, cd, k) for k in klist) |
| 596 | for cd,klist in zip(ContextData, c.RuleData(r))): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 597 | chaos = False |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 598 | for ll in getattr(r, c.LookupRecord): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 599 | if not ll: continue |
| 600 | seqi = ll.SequenceIndex |
Behdad Esfahbod | 348f858 | 2013-08-20 11:50:04 -0400 | [diff] [blame] | 601 | if chaos: |
| 602 | pos_glyphs = s.glyphs |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 603 | else: |
Behdad Esfahbod | 348f858 | 2013-08-20 11:50:04 -0400 | [diff] [blame] | 604 | if seqi == 0: |
| 605 | pos_glyphs = ClassDef.intersect_class(cur_glyphs, i) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 606 | else: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 607 | pos_glyphs = ClassDef.intersect_class(s.glyphs, |
Behdad Esfahbod | 1176330 | 2013-08-14 15:33:08 -0400 | [diff] [blame] | 608 | getattr(r, c.Input)[seqi - 1]) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 609 | lookup = s.table.LookupList.Lookup[ll.LookupListIndex] |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 610 | chaos = chaos or lookup.may_have_non_1to1() |
| 611 | lookup.closure_glyphs(s, cur_glyphs=pos_glyphs) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 612 | elif self.Format == 3: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 613 | if not all(x.intersect(s.glyphs) for x in c.RuleData(self)): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 614 | return [] |
| 615 | r = self |
| 616 | chaos = False |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 617 | for ll in getattr(r, c.LookupRecord): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 618 | if not ll: continue |
| 619 | seqi = ll.SequenceIndex |
Behdad Esfahbod | 348f858 | 2013-08-20 11:50:04 -0400 | [diff] [blame] | 620 | if chaos: |
| 621 | pos_glyphs = s.glyphs |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 622 | else: |
Behdad Esfahbod | 348f858 | 2013-08-20 11:50:04 -0400 | [diff] [blame] | 623 | if seqi == 0: |
| 624 | pos_glyphs = cur_glyphs |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 625 | else: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 626 | pos_glyphs = r.InputCoverage[seqi].intersect_glyphs(s.glyphs) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 627 | lookup = s.table.LookupList.Lookup[ll.LookupListIndex] |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 628 | chaos = chaos or lookup.may_have_non_1to1() |
| 629 | lookup.closure_glyphs(s, cur_glyphs=pos_glyphs) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 630 | else: |
| 631 | assert 0, "unknown format: %s" % self.Format |
Behdad Esfahbod | 0077697 | 2013-07-23 15:33:00 -0400 | [diff] [blame] | 632 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 633 | @_add_method(otTables.ContextSubst, |
| 634 | otTables.ContextPos, |
| 635 | otTables.ChainContextSubst, |
| 636 | otTables.ChainContextPos) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 637 | def subset_glyphs(self, s): |
| 638 | c = self.__classify_context() |
Behdad Esfahbod | d8c7e10 | 2013-07-23 17:07:06 -0400 | [diff] [blame] | 639 | |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 640 | if self.Format == 1: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 641 | indices = self.Coverage.subset(s.glyphs) |
| 642 | rss = getattr(self, c.RuleSet) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 643 | rss = [rss[i] for i in indices] |
| 644 | for rs in rss: |
| 645 | if not rs: continue |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 646 | ss = getattr(rs, c.Rule) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 647 | ss = [r for r in ss |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 648 | if r and all(all(g in s.glyphs for g in glist) |
| 649 | for glist in c.RuleData(r))] |
| 650 | setattr(rs, c.Rule, ss) |
| 651 | setattr(rs, c.RuleCount, len(ss)) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 652 | # Prune empty subrulesets |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 653 | rss = [rs for rs in rss if rs and getattr(rs, c.Rule)] |
| 654 | setattr(self, c.RuleSet, rss) |
| 655 | setattr(self, c.RuleSetCount, len(rss)) |
| 656 | return bool(rss) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 657 | elif self.Format == 2: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 658 | if not self.Coverage.subset(s.glyphs): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 659 | return False |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 660 | ContextData = c.ContextData(self) |
| 661 | klass_maps = [x.subset(s.glyphs, remap=True) for x in ContextData] |
Behdad Esfahbod | 98b6075 | 2013-10-14 17:49:19 +0200 | [diff] [blame] | 662 | |
| 663 | # Keep rulesets for class numbers that survived. |
| 664 | indices = klass_maps[c.ClassDefIndex] |
| 665 | rss = getattr(self, c.RuleSet) |
| 666 | rssCount = getattr(self, c.RuleSetCount) |
| 667 | rss = [rss[i] for i in indices if i < rssCount] |
| 668 | del rssCount |
| 669 | # Delete, but not renumber, unreachable rulesets. |
| 670 | indices = getattr(self, c.ClassDef).intersect(self.Coverage.glyphs) |
| 671 | rss = [rss if i in indices else None for i,rss in enumerate(rss)] |
Behdad Esfahbod | 9e6ef94 | 2013-12-04 16:31:44 -0500 | [diff] [blame] | 672 | while rss and rss[-1] is None: |
Behdad Esfahbod | 98b6075 | 2013-10-14 17:49:19 +0200 | [diff] [blame] | 673 | del rss[-1] |
| 674 | |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 675 | for rs in rss: |
| 676 | if not rs: continue |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 677 | ss = getattr(rs, c.Rule) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 678 | ss = [r for r in ss |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 679 | if r and all(all(k in klass_map for k in klist) |
| 680 | for klass_map,klist in zip(klass_maps, c.RuleData(r)))] |
| 681 | setattr(rs, c.Rule, ss) |
| 682 | setattr(rs, c.RuleCount, len(ss)) |
Behdad Esfahbod | e9a3bd6 | 2013-07-23 22:41:11 -0400 | [diff] [blame] | 683 | |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 684 | # Remap rule classes |
| 685 | for r in ss: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 686 | c.SetRuleData(r, [[klass_map.index(k) for k in klist] |
| 687 | for klass_map,klist in zip(klass_maps, c.RuleData(r))]) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 688 | return bool(rss) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 689 | elif self.Format == 3: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 690 | return all(x.subset(s.glyphs) for x in c.RuleData(self)) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 691 | else: |
| 692 | assert 0, "unknown format: %s" % self.Format |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 693 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 694 | @_add_method(otTables.ContextSubst, |
| 695 | otTables.ChainContextSubst, |
| 696 | otTables.ContextPos, |
| 697 | otTables.ChainContextPos) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 698 | def subset_lookups(self, lookup_indices): |
| 699 | c = self.__classify_context() |
Behdad Esfahbod | 44c2b3c | 2013-07-23 16:00:32 -0400 | [diff] [blame] | 700 | |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 701 | if self.Format in [1, 2]: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 702 | for rs in getattr(self, c.RuleSet): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 703 | if not rs: continue |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 704 | for r in getattr(rs, c.Rule): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 705 | if not r: continue |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 706 | setattr(r, c.LookupRecord, |
| 707 | [ll for ll in getattr(r, c.LookupRecord) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 708 | if ll and ll.LookupListIndex in lookup_indices]) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 709 | for ll in getattr(r, c.LookupRecord): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 710 | if not ll: continue |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 711 | ll.LookupListIndex = lookup_indices.index(ll.LookupListIndex) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 712 | elif self.Format == 3: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 713 | setattr(self, c.LookupRecord, |
| 714 | [ll for ll in getattr(self, c.LookupRecord) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 715 | if ll and ll.LookupListIndex in lookup_indices]) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 716 | for ll in getattr(self, c.LookupRecord): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 717 | if not ll: continue |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 718 | ll.LookupListIndex = lookup_indices.index(ll.LookupListIndex) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 719 | else: |
| 720 | assert 0, "unknown format: %s" % self.Format |
Behdad Esfahbod | 59dfc13 | 2013-07-23 15:39:20 -0400 | [diff] [blame] | 721 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 722 | @_add_method(otTables.ContextSubst, |
| 723 | otTables.ChainContextSubst, |
| 724 | otTables.ContextPos, |
| 725 | otTables.ChainContextPos) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 726 | def collect_lookups(self): |
| 727 | c = self.__classify_context() |
Behdad Esfahbod | 44c2b3c | 2013-07-23 16:00:32 -0400 | [diff] [blame] | 728 | |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 729 | if self.Format in [1, 2]: |
| 730 | return [ll.LookupListIndex |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 731 | for rs in getattr(self, c.RuleSet) if rs |
| 732 | for r in getattr(rs, c.Rule) if r |
| 733 | for ll in getattr(r, c.LookupRecord) if ll] |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 734 | elif self.Format == 3: |
| 735 | return [ll.LookupListIndex |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 736 | for ll in getattr(self, c.LookupRecord) if ll] |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 737 | else: |
| 738 | assert 0, "unknown format: %s" % self.Format |
Behdad Esfahbod | 59dfc13 | 2013-07-23 15:39:20 -0400 | [diff] [blame] | 739 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 740 | @_add_method(otTables.ExtensionSubst) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 741 | def closure_glyphs(self, s, cur_glyphs=None): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 742 | if self.Format == 1: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 743 | self.ExtSubTable.closure_glyphs(s, cur_glyphs) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 744 | else: |
| 745 | assert 0, "unknown format: %s" % self.Format |
Behdad Esfahbod | 610b055 | 2013-07-23 14:52:18 -0400 | [diff] [blame] | 746 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 747 | @_add_method(otTables.ExtensionSubst) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 748 | def may_have_non_1to1(self): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 749 | if self.Format == 1: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 750 | return self.ExtSubTable.may_have_non_1to1() |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 751 | else: |
| 752 | assert 0, "unknown format: %s" % self.Format |
Behdad Esfahbod | aeacc15 | 2013-08-12 20:24:33 -0400 | [diff] [blame] | 753 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 754 | @_add_method(otTables.ExtensionSubst, |
| 755 | otTables.ExtensionPos) |
Behdad Esfahbod | d77f157 | 2013-08-15 19:24:36 -0400 | [diff] [blame] | 756 | def prune_pre_subset(self, options): |
| 757 | if self.Format == 1: |
| 758 | return self.ExtSubTable.prune_pre_subset(options) |
| 759 | else: |
| 760 | assert 0, "unknown format: %s" % self.Format |
| 761 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 762 | @_add_method(otTables.ExtensionSubst, |
| 763 | otTables.ExtensionPos) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 764 | def subset_glyphs(self, s): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 765 | if self.Format == 1: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 766 | return self.ExtSubTable.subset_glyphs(s) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 767 | else: |
| 768 | assert 0, "unknown format: %s" % self.Format |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 769 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 770 | @_add_method(otTables.ExtensionSubst, |
| 771 | otTables.ExtensionPos) |
Behdad Esfahbod | d77f157 | 2013-08-15 19:24:36 -0400 | [diff] [blame] | 772 | def prune_post_subset(self, options): |
| 773 | if self.Format == 1: |
| 774 | return self.ExtSubTable.prune_post_subset(options) |
| 775 | else: |
| 776 | assert 0, "unknown format: %s" % self.Format |
| 777 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 778 | @_add_method(otTables.ExtensionSubst, |
| 779 | otTables.ExtensionPos) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 780 | def subset_lookups(self, lookup_indices): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 781 | if self.Format == 1: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 782 | return self.ExtSubTable.subset_lookups(lookup_indices) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 783 | else: |
| 784 | assert 0, "unknown format: %s" % self.Format |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 785 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 786 | @_add_method(otTables.ExtensionSubst, |
| 787 | otTables.ExtensionPos) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 788 | def collect_lookups(self): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 789 | if self.Format == 1: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 790 | return self.ExtSubTable.collect_lookups() |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 791 | else: |
| 792 | assert 0, "unknown format: %s" % self.Format |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 793 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 794 | @_add_method(otTables.Lookup) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 795 | def closure_glyphs(self, s, cur_glyphs=None): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 796 | for st in self.SubTable: |
| 797 | if not st: continue |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 798 | st.closure_glyphs(s, cur_glyphs) |
Behdad Esfahbod | 610b055 | 2013-07-23 14:52:18 -0400 | [diff] [blame] | 799 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 800 | @_add_method(otTables.Lookup) |
Behdad Esfahbod | d77f157 | 2013-08-15 19:24:36 -0400 | [diff] [blame] | 801 | def prune_pre_subset(self, options): |
| 802 | ret = False |
| 803 | for st in self.SubTable: |
| 804 | if not st: continue |
| 805 | if st.prune_pre_subset(options): ret = True |
| 806 | return ret |
| 807 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 808 | @_add_method(otTables.Lookup) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 809 | def subset_glyphs(self, s): |
| 810 | self.SubTable = [st for st in self.SubTable if st and st.subset_glyphs(s)] |
| 811 | self.SubTableCount = len(self.SubTable) |
| 812 | return bool(self.SubTableCount) |
Behdad Esfahbod | d1d41bc | 2013-07-21 23:15:32 -0400 | [diff] [blame] | 813 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 814 | @_add_method(otTables.Lookup) |
Behdad Esfahbod | d77f157 | 2013-08-15 19:24:36 -0400 | [diff] [blame] | 815 | def prune_post_subset(self, options): |
| 816 | ret = False |
| 817 | for st in self.SubTable: |
| 818 | if not st: continue |
| 819 | if st.prune_post_subset(options): ret = True |
| 820 | return ret |
| 821 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 822 | @_add_method(otTables.Lookup) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 823 | def subset_lookups(self, lookup_indices): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 824 | for s in self.SubTable: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 825 | s.subset_lookups(lookup_indices) |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 826 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 827 | @_add_method(otTables.Lookup) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 828 | def collect_lookups(self): |
Behdad Esfahbod | 22f5cfc | 2013-08-13 20:25:37 -0400 | [diff] [blame] | 829 | return _uniq_sort(sum((st.collect_lookups() for st in self.SubTable |
| 830 | if st), [])) |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 831 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 832 | @_add_method(otTables.Lookup) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 833 | def may_have_non_1to1(self): |
| 834 | return any(st.may_have_non_1to1() for st in self.SubTable if st) |
Behdad Esfahbod | aeacc15 | 2013-08-12 20:24:33 -0400 | [diff] [blame] | 835 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 836 | @_add_method(otTables.LookupList) |
Behdad Esfahbod | d77f157 | 2013-08-15 19:24:36 -0400 | [diff] [blame] | 837 | def prune_pre_subset(self, options): |
| 838 | ret = False |
| 839 | for l in self.Lookup: |
| 840 | if not l: continue |
| 841 | if l.prune_pre_subset(options): ret = True |
| 842 | return ret |
| 843 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 844 | @_add_method(otTables.LookupList) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 845 | def subset_glyphs(self, s): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 846 | "Returns the indices of nonempty lookups." |
Behdad Esfahbod | 4734be5 | 2013-08-14 19:47:42 -0400 | [diff] [blame] | 847 | 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] | 848 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 849 | @_add_method(otTables.LookupList) |
Behdad Esfahbod | d77f157 | 2013-08-15 19:24:36 -0400 | [diff] [blame] | 850 | def prune_post_subset(self, options): |
| 851 | ret = False |
| 852 | for l in self.Lookup: |
| 853 | if not l: continue |
| 854 | if l.prune_post_subset(options): ret = True |
| 855 | return ret |
| 856 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 857 | @_add_method(otTables.LookupList) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 858 | def subset_lookups(self, lookup_indices): |
Behdad Esfahbod | 6c51f50 | 2013-12-15 23:12:26 -0500 | [diff] [blame] | 859 | self.ensureDecompiled() |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 860 | self.Lookup = [self.Lookup[i] for i in lookup_indices |
| 861 | if i < self.LookupCount] |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 862 | self.LookupCount = len(self.Lookup) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 863 | for l in self.Lookup: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 864 | l.subset_lookups(lookup_indices) |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 865 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 866 | @_add_method(otTables.LookupList) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 867 | def closure_lookups(self, lookup_indices): |
Behdad Esfahbod | 22f5cfc | 2013-08-13 20:25:37 -0400 | [diff] [blame] | 868 | lookup_indices = _uniq_sort(lookup_indices) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 869 | recurse = lookup_indices |
| 870 | while True: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 871 | recurse_lookups = sum((self.Lookup[i].collect_lookups() |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 872 | for i in recurse if i < self.LookupCount), []) |
| 873 | recurse_lookups = [l for l in recurse_lookups |
| 874 | if l not in lookup_indices and l < self.LookupCount] |
| 875 | if not recurse_lookups: |
Behdad Esfahbod | 22f5cfc | 2013-08-13 20:25:37 -0400 | [diff] [blame] | 876 | return _uniq_sort(lookup_indices) |
| 877 | recurse_lookups = _uniq_sort(recurse_lookups) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 878 | lookup_indices.extend(recurse_lookups) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 879 | recurse = recurse_lookups |
Behdad Esfahbod | 77cda41 | 2013-07-22 11:46:50 -0400 | [diff] [blame] | 880 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 881 | @_add_method(otTables.Feature) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 882 | def subset_lookups(self, lookup_indices): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 883 | self.LookupListIndex = [l for l in self.LookupListIndex |
| 884 | if l in lookup_indices] |
| 885 | # Now map them. |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 886 | self.LookupListIndex = [lookup_indices.index(l) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 887 | for l in self.LookupListIndex] |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 888 | self.LookupCount = len(self.LookupListIndex) |
Behdad Esfahbod | d214f20 | 2013-11-26 17:42:13 -0500 | [diff] [blame] | 889 | return self.LookupCount or self.FeatureParams |
Behdad Esfahbod | 5466061 | 2013-07-21 18:16:55 -0400 | [diff] [blame] | 890 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 891 | @_add_method(otTables.Feature) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 892 | def collect_lookups(self): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 893 | return self.LookupListIndex[:] |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 894 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 895 | @_add_method(otTables.FeatureList) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 896 | def subset_lookups(self, lookup_indices): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 897 | "Returns the indices of nonempty features." |
Behdad Esfahbod | 0be386e | 2013-12-16 20:52:52 -0500 | [diff] [blame] | 898 | # Note: Never ever drop feature 'pref', even if it's empty. |
| 899 | # HarfBuzz chooses shaper for Khmer based on presence of this |
| 900 | # feature. See thread at: |
| 901 | # http://lists.freedesktop.org/archives/harfbuzz/2012-November/002660.html |
Behdad Esfahbod | 4734be5 | 2013-08-14 19:47:42 -0400 | [diff] [blame] | 902 | feature_indices = [i for i,f in enumerate(self.FeatureRecord) |
Behdad Esfahbod | 0be386e | 2013-12-16 20:52:52 -0500 | [diff] [blame] | 903 | if (f.Feature.subset_lookups(lookup_indices) or |
| 904 | f.FeatureTag == 'pref')] |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 905 | self.subset_features(feature_indices) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 906 | return feature_indices |
Behdad Esfahbod | 77cda41 | 2013-07-22 11:46:50 -0400 | [diff] [blame] | 907 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 908 | @_add_method(otTables.FeatureList) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 909 | def collect_lookups(self, feature_indices): |
Behdad Esfahbod | 22f5cfc | 2013-08-13 20:25:37 -0400 | [diff] [blame] | 910 | return _uniq_sort(sum((self.FeatureRecord[i].Feature.collect_lookups() |
| 911 | for i in feature_indices |
Behdad Esfahbod | 1ee298d | 2013-08-13 20:07:09 -0400 | [diff] [blame] | 912 | if i < self.FeatureCount), [])) |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 913 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 914 | @_add_method(otTables.FeatureList) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 915 | def subset_features(self, feature_indices): |
Behdad Esfahbod | 6c51f50 | 2013-12-15 23:12:26 -0500 | [diff] [blame] | 916 | self.ensureDecompiled() |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 917 | self.FeatureRecord = [self.FeatureRecord[i] for i in feature_indices] |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 918 | self.FeatureCount = len(self.FeatureRecord) |
| 919 | return bool(self.FeatureCount) |
Behdad Esfahbod | 356c42e | 2013-07-23 12:10:46 -0400 | [diff] [blame] | 920 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 921 | @_add_method(otTables.DefaultLangSys, |
| 922 | otTables.LangSys) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 923 | def subset_features(self, feature_indices): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 924 | if self.ReqFeatureIndex in feature_indices: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 925 | self.ReqFeatureIndex = feature_indices.index(self.ReqFeatureIndex) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 926 | else: |
| 927 | self.ReqFeatureIndex = 65535 |
| 928 | self.FeatureIndex = [f for f in self.FeatureIndex if f in feature_indices] |
| 929 | # Now map them. |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 930 | self.FeatureIndex = [feature_indices.index(f) for f in self.FeatureIndex |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 931 | if f in feature_indices] |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 932 | self.FeatureCount = len(self.FeatureIndex) |
| 933 | return bool(self.FeatureCount or self.ReqFeatureIndex != 65535) |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 934 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 935 | @_add_method(otTables.DefaultLangSys, |
| 936 | otTables.LangSys) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 937 | def collect_features(self): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 938 | feature_indices = self.FeatureIndex[:] |
| 939 | if self.ReqFeatureIndex != 65535: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 940 | feature_indices.append(self.ReqFeatureIndex) |
Behdad Esfahbod | 22f5cfc | 2013-08-13 20:25:37 -0400 | [diff] [blame] | 941 | return _uniq_sort(feature_indices) |
Behdad Esfahbod | 77cda41 | 2013-07-22 11:46:50 -0400 | [diff] [blame] | 942 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 943 | @_add_method(otTables.Script) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 944 | def subset_features(self, feature_indices): |
| 945 | if(self.DefaultLangSys and |
| 946 | not self.DefaultLangSys.subset_features(feature_indices)): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 947 | self.DefaultLangSys = None |
| 948 | self.LangSysRecord = [l for l in self.LangSysRecord |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 949 | if l.LangSys.subset_features(feature_indices)] |
| 950 | self.LangSysCount = len(self.LangSysRecord) |
| 951 | return bool(self.LangSysCount or self.DefaultLangSys) |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 952 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 953 | @_add_method(otTables.Script) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 954 | def collect_features(self): |
| 955 | feature_indices = [l.LangSys.collect_features() for l in self.LangSysRecord] |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 956 | if self.DefaultLangSys: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 957 | feature_indices.append(self.DefaultLangSys.collect_features()) |
Behdad Esfahbod | 22f5cfc | 2013-08-13 20:25:37 -0400 | [diff] [blame] | 958 | return _uniq_sort(sum(feature_indices, [])) |
Behdad Esfahbod | 77cda41 | 2013-07-22 11:46:50 -0400 | [diff] [blame] | 959 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 960 | @_add_method(otTables.ScriptList) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 961 | def subset_features(self, feature_indices): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 962 | self.ScriptRecord = [s for s in self.ScriptRecord |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 963 | if s.Script.subset_features(feature_indices)] |
| 964 | self.ScriptCount = len(self.ScriptRecord) |
| 965 | return bool(self.ScriptCount) |
Behdad Esfahbod | 77cda41 | 2013-07-22 11:46:50 -0400 | [diff] [blame] | 966 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 967 | @_add_method(otTables.ScriptList) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 968 | def collect_features(self): |
Behdad Esfahbod | 22f5cfc | 2013-08-13 20:25:37 -0400 | [diff] [blame] | 969 | return _uniq_sort(sum((s.Script.collect_features() |
| 970 | for s in self.ScriptRecord), [])) |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 971 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 972 | @_add_method(ttLib.getTableClass('GSUB')) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 973 | def closure_glyphs(self, s): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 974 | s.table = self.table |
Behdad Esfahbod | 19d7cf2 | 2013-12-04 21:13:11 -0500 | [diff] [blame] | 975 | if self.table.ScriptList: |
| 976 | feature_indices = self.table.ScriptList.collect_features() |
| 977 | else: |
| 978 | feature_indices = [] |
Behdad Esfahbod | 7e97247 | 2013-11-15 17:57:15 -0500 | [diff] [blame] | 979 | if self.table.FeatureList: |
| 980 | lookup_indices = self.table.FeatureList.collect_lookups(feature_indices) |
| 981 | else: |
| 982 | lookup_indices = [] |
| 983 | if self.table.LookupList: |
| 984 | while True: |
| 985 | orig_glyphs = s.glyphs.copy() |
| 986 | for i in lookup_indices: |
| 987 | if i >= self.table.LookupList.LookupCount: continue |
| 988 | if not self.table.LookupList.Lookup[i]: continue |
| 989 | self.table.LookupList.Lookup[i].closure_glyphs(s) |
| 990 | if orig_glyphs == s.glyphs: |
| 991 | break |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 992 | del s.table |
Behdad Esfahbod | 610b055 | 2013-07-23 14:52:18 -0400 | [diff] [blame] | 993 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 994 | @_add_method(ttLib.getTableClass('GSUB'), |
| 995 | ttLib.getTableClass('GPOS')) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 996 | def subset_glyphs(self, s): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 997 | s.glyphs = s.glyphs_gsubed |
Behdad Esfahbod | 7e97247 | 2013-11-15 17:57:15 -0500 | [diff] [blame] | 998 | if self.table.LookupList: |
| 999 | lookup_indices = self.table.LookupList.subset_glyphs(s) |
| 1000 | else: |
| 1001 | lookup_indices = [] |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1002 | self.subset_lookups(lookup_indices) |
| 1003 | self.prune_lookups() |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1004 | return True |
Behdad Esfahbod | 02b9206 | 2013-07-21 18:40:59 -0400 | [diff] [blame] | 1005 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 1006 | @_add_method(ttLib.getTableClass('GSUB'), |
| 1007 | ttLib.getTableClass('GPOS')) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1008 | def subset_lookups(self, lookup_indices): |
Behdad Esfahbod | baa97d6 | 2013-12-06 21:11:22 -0500 | [diff] [blame] | 1009 | """Retains specified lookups, then removes empty features, language |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1010 | systems, and scripts.""" |
Behdad Esfahbod | 7e97247 | 2013-11-15 17:57:15 -0500 | [diff] [blame] | 1011 | if self.table.LookupList: |
| 1012 | self.table.LookupList.subset_lookups(lookup_indices) |
| 1013 | if self.table.FeatureList: |
| 1014 | feature_indices = self.table.FeatureList.subset_lookups(lookup_indices) |
| 1015 | else: |
| 1016 | feature_indices = [] |
Behdad Esfahbod | 19d7cf2 | 2013-12-04 21:13:11 -0500 | [diff] [blame] | 1017 | if self.table.ScriptList: |
| 1018 | self.table.ScriptList.subset_features(feature_indices) |
Behdad Esfahbod | 77cda41 | 2013-07-22 11:46:50 -0400 | [diff] [blame] | 1019 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 1020 | @_add_method(ttLib.getTableClass('GSUB'), |
| 1021 | ttLib.getTableClass('GPOS')) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1022 | def prune_lookups(self): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1023 | "Remove unreferenced lookups" |
Behdad Esfahbod | 19d7cf2 | 2013-12-04 21:13:11 -0500 | [diff] [blame] | 1024 | if self.table.ScriptList: |
| 1025 | feature_indices = self.table.ScriptList.collect_features() |
| 1026 | else: |
| 1027 | feature_indices = [] |
Behdad Esfahbod | 7e97247 | 2013-11-15 17:57:15 -0500 | [diff] [blame] | 1028 | if self.table.FeatureList: |
| 1029 | lookup_indices = self.table.FeatureList.collect_lookups(feature_indices) |
| 1030 | else: |
| 1031 | lookup_indices = [] |
| 1032 | if self.table.LookupList: |
| 1033 | lookup_indices = self.table.LookupList.closure_lookups(lookup_indices) |
| 1034 | else: |
| 1035 | lookup_indices = [] |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1036 | self.subset_lookups(lookup_indices) |
Behdad Esfahbod | 78661bb | 2013-07-23 10:23:42 -0400 | [diff] [blame] | 1037 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 1038 | @_add_method(ttLib.getTableClass('GSUB'), |
| 1039 | ttLib.getTableClass('GPOS')) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1040 | def subset_feature_tags(self, feature_tags): |
Behdad Esfahbod | 7e97247 | 2013-11-15 17:57:15 -0500 | [diff] [blame] | 1041 | if self.table.FeatureList: |
| 1042 | feature_indices = [i for i,f in |
| 1043 | enumerate(self.table.FeatureList.FeatureRecord) |
| 1044 | if f.FeatureTag in feature_tags] |
| 1045 | self.table.FeatureList.subset_features(feature_indices) |
| 1046 | else: |
| 1047 | feature_indices = [] |
Behdad Esfahbod | 19d7cf2 | 2013-12-04 21:13:11 -0500 | [diff] [blame] | 1048 | if self.table.ScriptList: |
| 1049 | self.table.ScriptList.subset_features(feature_indices) |
Behdad Esfahbod | 356c42e | 2013-07-23 12:10:46 -0400 | [diff] [blame] | 1050 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 1051 | @_add_method(ttLib.getTableClass('GSUB'), |
| 1052 | ttLib.getTableClass('GPOS')) |
Behdad Esfahbod | ec9436d | 2013-12-06 21:58:41 -0500 | [diff] [blame] | 1053 | def prune_features(self): |
| 1054 | "Remove unreferenced featurs" |
| 1055 | if self.table.ScriptList: |
| 1056 | feature_indices = self.table.ScriptList.collect_features() |
| 1057 | else: |
| 1058 | feature_indices = [] |
| 1059 | if self.table.FeatureList: |
| 1060 | self.table.FeatureList.subset_features(feature_indices) |
| 1061 | if self.table.ScriptList: |
| 1062 | self.table.ScriptList.subset_features(feature_indices) |
| 1063 | |
| 1064 | @_add_method(ttLib.getTableClass('GSUB'), |
| 1065 | ttLib.getTableClass('GPOS')) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1066 | def prune_pre_subset(self, options): |
Behdad Esfahbod | 9d2481b | 2013-12-06 21:42:36 -0500 | [diff] [blame] | 1067 | # Drop undesired features |
Behdad Esfahbod | 0fc5502 | 2013-08-15 19:06:48 -0400 | [diff] [blame] | 1068 | if '*' not in options.layout_features: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1069 | self.subset_feature_tags(options.layout_features) |
Behdad Esfahbod | 9d2481b | 2013-12-06 21:42:36 -0500 | [diff] [blame] | 1070 | # Drop unreferenced lookups |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1071 | self.prune_lookups() |
Behdad Esfahbod | 9d2481b | 2013-12-06 21:42:36 -0500 | [diff] [blame] | 1072 | # Prune lookups themselves |
Behdad Esfahbod | 7e97247 | 2013-11-15 17:57:15 -0500 | [diff] [blame] | 1073 | if self.table.LookupList: |
| 1074 | self.table.LookupList.prune_pre_subset(options); |
Behdad Esfahbod | d77f157 | 2013-08-15 19:24:36 -0400 | [diff] [blame] | 1075 | return True |
| 1076 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 1077 | @_add_method(ttLib.getTableClass('GSUB'), |
| 1078 | ttLib.getTableClass('GPOS')) |
Behdad Esfahbod | 3db5e11 | 2013-12-07 12:54:44 -0500 | [diff] [blame] | 1079 | def remove_redundant_langsys(self): |
| 1080 | table = self.table |
| 1081 | if not table.ScriptList or not table.FeatureList: |
| 1082 | return |
| 1083 | |
| 1084 | features = table.FeatureList.FeatureRecord |
| 1085 | |
| 1086 | for s in table.ScriptList.ScriptRecord: |
| 1087 | d = s.Script.DefaultLangSys |
| 1088 | if not d: |
| 1089 | continue |
| 1090 | for lr in s.Script.LangSysRecord[:]: |
| 1091 | l = lr.LangSys |
| 1092 | # Compare d and l |
| 1093 | if len(d.FeatureIndex) != len(l.FeatureIndex): |
| 1094 | continue |
| 1095 | if (d.ReqFeatureIndex == 65535) != (l.ReqFeatureIndex == 65535): |
| 1096 | continue |
| 1097 | |
| 1098 | if d.ReqFeatureIndex != 65535: |
| 1099 | if features[d.ReqFeatureIndex] != features[l.ReqFeatureIndex]: |
| 1100 | continue |
| 1101 | |
| 1102 | for i in range(len(d.FeatureIndex)): |
| 1103 | if features[d.FeatureIndex[i]] != features[l.FeatureIndex[i]]: |
Behdad Esfahbod | 3db5e11 | 2013-12-07 12:54:44 -0500 | [diff] [blame] | 1104 | break |
| 1105 | else: |
| 1106 | # LangSys and default are equal; delete LangSys |
| 1107 | s.Script.LangSysRecord.remove(lr) |
| 1108 | |
| 1109 | @_add_method(ttLib.getTableClass('GSUB'), |
| 1110 | ttLib.getTableClass('GPOS')) |
Behdad Esfahbod | d77f157 | 2013-08-15 19:24:36 -0400 | [diff] [blame] | 1111 | def prune_post_subset(self, options): |
Behdad Esfahbod | 9fe4eef | 2013-11-25 04:28:37 -0500 | [diff] [blame] | 1112 | table = self.table |
Behdad Esfahbod | ec9436d | 2013-12-06 21:58:41 -0500 | [diff] [blame] | 1113 | |
| 1114 | # LookupList looks good. Just prune lookups themselves |
Behdad Esfahbod | 9fe4eef | 2013-11-25 04:28:37 -0500 | [diff] [blame] | 1115 | if table.LookupList: |
| 1116 | table.LookupList.prune_post_subset(options); |
Behdad Esfahbod | 92af6a5 | 2013-12-10 17:51:32 -0500 | [diff] [blame] | 1117 | # XXX Next two lines disabled because OTS is stupid and |
| 1118 | # doesn't like NULL offsetse here. |
| 1119 | #if not table.LookupList.Lookup: |
| 1120 | # table.LookupList = None |
Behdad Esfahbod | ec9436d | 2013-12-06 21:58:41 -0500 | [diff] [blame] | 1121 | |
| 1122 | if not table.LookupList: |
| 1123 | table.FeatureList = None |
| 1124 | |
| 1125 | if table.FeatureList: |
Behdad Esfahbod | 3db5e11 | 2013-12-07 12:54:44 -0500 | [diff] [blame] | 1126 | self.remove_redundant_langsys() |
Behdad Esfahbod | ec9436d | 2013-12-06 21:58:41 -0500 | [diff] [blame] | 1127 | # Remove unreferenced features |
| 1128 | self.prune_features() |
| 1129 | |
Behdad Esfahbod | 92af6a5 | 2013-12-10 17:51:32 -0500 | [diff] [blame] | 1130 | # XXX Next two lines disabled because OTS is stupid and |
| 1131 | # doesn't like NULL offsetse here. |
| 1132 | #if table.FeatureList and not table.FeatureList.FeatureRecord: |
| 1133 | # table.FeatureList = None |
Behdad Esfahbod | ec9436d | 2013-12-06 21:58:41 -0500 | [diff] [blame] | 1134 | |
| 1135 | # Never drop scripts themselves as them just being available |
| 1136 | # holds semantic significance. |
Behdad Esfahbod | 92af6a5 | 2013-12-10 17:51:32 -0500 | [diff] [blame] | 1137 | # XXX Next two lines disabled because OTS is stupid and |
| 1138 | # doesn't like NULL offsetse here. |
| 1139 | #if table.ScriptList and not table.ScriptList.ScriptRecord: |
| 1140 | # table.ScriptList = None |
Behdad Esfahbod | ec9436d | 2013-12-06 21:58:41 -0500 | [diff] [blame] | 1141 | |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1142 | return True |
Behdad Esfahbod | 356c42e | 2013-07-23 12:10:46 -0400 | [diff] [blame] | 1143 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 1144 | @_add_method(ttLib.getTableClass('GDEF')) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1145 | def subset_glyphs(self, s): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1146 | glyphs = s.glyphs_gsubed |
| 1147 | table = self.table |
| 1148 | if table.LigCaretList: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1149 | indices = table.LigCaretList.Coverage.subset(glyphs) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1150 | table.LigCaretList.LigGlyph = [table.LigCaretList.LigGlyph[i] |
| 1151 | for i in indices] |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1152 | table.LigCaretList.LigGlyphCount = len(table.LigCaretList.LigGlyph) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1153 | if table.MarkAttachClassDef: |
Behdad Esfahbod | d73f225 | 2013-08-16 10:58:25 -0400 | [diff] [blame] | 1154 | table.MarkAttachClassDef.classDefs = dict((g,v) for g,v in |
| 1155 | table.MarkAttachClassDef. |
Behdad Esfahbod | 6890d05 | 2013-11-27 06:26:35 -0500 | [diff] [blame] | 1156 | classDefs.items() |
Behdad Esfahbod | d73f225 | 2013-08-16 10:58:25 -0400 | [diff] [blame] | 1157 | if g in glyphs) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1158 | if table.GlyphClassDef: |
Behdad Esfahbod | d73f225 | 2013-08-16 10:58:25 -0400 | [diff] [blame] | 1159 | table.GlyphClassDef.classDefs = dict((g,v) for g,v in |
| 1160 | table.GlyphClassDef. |
Behdad Esfahbod | 6890d05 | 2013-11-27 06:26:35 -0500 | [diff] [blame] | 1161 | classDefs.items() |
Behdad Esfahbod | d73f225 | 2013-08-16 10:58:25 -0400 | [diff] [blame] | 1162 | if g in glyphs) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1163 | if table.AttachList: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1164 | indices = table.AttachList.Coverage.subset(glyphs) |
Behdad Esfahbod | 9876943 | 2013-11-19 14:40:57 -0500 | [diff] [blame] | 1165 | GlyphCount = table.AttachList.GlyphCount |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1166 | table.AttachList.AttachPoint = [table.AttachList.AttachPoint[i] |
Behdad Esfahbod | 9876943 | 2013-11-19 14:40:57 -0500 | [diff] [blame] | 1167 | for i in indices |
| 1168 | if i < GlyphCount] |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1169 | table.AttachList.GlyphCount = len(table.AttachList.AttachPoint) |
Behdad Esfahbod | 5aea27d | 2013-11-25 04:19:42 -0500 | [diff] [blame] | 1170 | if hasattr(table, "MarkGlyphSetsDef") and table.MarkGlyphSetsDef: |
| 1171 | for coverage in table.MarkGlyphSetsDef.Coverage: |
| 1172 | coverage.subset(glyphs) |
Behdad Esfahbod | 05da970 | 2013-11-25 05:23:07 -0500 | [diff] [blame] | 1173 | # TODO: The following is disabled. If enabling, we need to go fixup all |
| 1174 | # lookups that use MarkFilteringSet and map their set. |
| 1175 | #indices = table.MarkGlyphSetsDef.Coverage = [c for c in table.MarkGlyphSetsDef.Coverage if c.glyphs] |
Behdad Esfahbod | 5aea27d | 2013-11-25 04:19:42 -0500 | [diff] [blame] | 1176 | return True |
| 1177 | |
| 1178 | @_add_method(ttLib.getTableClass('GDEF')) |
| 1179 | def prune_post_subset(self, options): |
| 1180 | table = self.table |
Behdad Esfahbod | fa95e87 | 2013-12-15 22:02:20 -0500 | [diff] [blame] | 1181 | # XXX check these against OTS |
Behdad Esfahbod | 5aea27d | 2013-11-25 04:19:42 -0500 | [diff] [blame] | 1182 | if table.LigCaretList and not table.LigCaretList.LigGlyphCount: |
| 1183 | table.LigCaretList = None |
| 1184 | if table.MarkAttachClassDef and not table.MarkAttachClassDef.classDefs: |
| 1185 | table.MarkAttachClassDef = None |
| 1186 | if table.GlyphClassDef and not table.GlyphClassDef.classDefs: |
| 1187 | table.GlyphClassDef = None |
| 1188 | if table.AttachList and not table.AttachList.GlyphCount: |
| 1189 | table.AttachList = None |
| 1190 | if hasattr(table, "MarkGlyphSetsDef") and table.MarkGlyphSetsDef and not table.MarkGlyphSetsDef.Coverage: |
| 1191 | table.MarkGlyphSetsDef = None |
Behdad Esfahbod | a030a0d | 2013-11-27 17:46:15 -0500 | [diff] [blame] | 1192 | if table.Version == 0x00010002/0x10000: |
Behdad Esfahbod | 5aea27d | 2013-11-25 04:19:42 -0500 | [diff] [blame] | 1193 | table.Version = 1.0 |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1194 | return bool(table.LigCaretList or |
Behdad Esfahbod | 5aea27d | 2013-11-25 04:19:42 -0500 | [diff] [blame] | 1195 | table.MarkAttachClassDef or |
| 1196 | table.GlyphClassDef or |
| 1197 | table.AttachList or |
Behdad Esfahbod | a030a0d | 2013-11-27 17:46:15 -0500 | [diff] [blame] | 1198 | (table.Version >= 0x00010002/0x10000 and table.MarkGlyphSetsDef)) |
Behdad Esfahbod | efb984a | 2013-07-21 22:26:16 -0400 | [diff] [blame] | 1199 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 1200 | @_add_method(ttLib.getTableClass('kern')) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1201 | def prune_pre_subset(self, options): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1202 | # Prune unknown kern table types |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1203 | self.kernTables = [t for t in self.kernTables if hasattr(t, 'kernTable')] |
| 1204 | return bool(self.kernTables) |
Behdad Esfahbod | d4e33a7 | 2013-07-24 18:51:05 -0400 | [diff] [blame] | 1205 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 1206 | @_add_method(ttLib.getTableClass('kern')) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1207 | def subset_glyphs(self, s): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1208 | glyphs = s.glyphs_gsubed |
| 1209 | for t in self.kernTables: |
Behdad Esfahbod | 6890d05 | 2013-11-27 06:26:35 -0500 | [diff] [blame] | 1210 | t.kernTable = dict(((a,b),v) for (a,b),v in t.kernTable.items() |
Behdad Esfahbod | d73f225 | 2013-08-16 10:58:25 -0400 | [diff] [blame] | 1211 | if a in glyphs and b in glyphs) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1212 | self.kernTables = [t for t in self.kernTables if t.kernTable] |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1213 | return bool(self.kernTables) |
Behdad Esfahbod | efb984a | 2013-07-21 22:26:16 -0400 | [diff] [blame] | 1214 | |
Behdad Esfahbod | a6241e6 | 2013-10-28 13:09:25 +0100 | [diff] [blame] | 1215 | @_add_method(ttLib.getTableClass('vmtx')) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1216 | def subset_glyphs(self, s): |
Behdad Esfahbod | 6890d05 | 2013-11-27 06:26:35 -0500 | [diff] [blame] | 1217 | self.metrics = dict((g,v) for g,v in self.metrics.items() if g in s.glyphs) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1218 | return bool(self.metrics) |
Behdad Esfahbod | c716044 | 2013-07-22 14:29:08 -0400 | [diff] [blame] | 1219 | |
Behdad Esfahbod | a6241e6 | 2013-10-28 13:09:25 +0100 | [diff] [blame] | 1220 | @_add_method(ttLib.getTableClass('hmtx')) |
| 1221 | def subset_glyphs(self, s): |
Behdad Esfahbod | 6890d05 | 2013-11-27 06:26:35 -0500 | [diff] [blame] | 1222 | self.metrics = dict((g,v) for g,v in self.metrics.items() if g in s.glyphs) |
Behdad Esfahbod | a6241e6 | 2013-10-28 13:09:25 +0100 | [diff] [blame] | 1223 | return True # Required table |
| 1224 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 1225 | @_add_method(ttLib.getTableClass('hdmx')) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1226 | def subset_glyphs(self, s): |
Behdad Esfahbod | 6890d05 | 2013-11-27 06:26:35 -0500 | [diff] [blame] | 1227 | self.hdmx = dict((sz,dict((g,v) for g,v in l.items() if g in s.glyphs)) |
| 1228 | for sz,l in self.hdmx.items()) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1229 | return bool(self.hdmx) |
Behdad Esfahbod | 75e14fc | 2013-07-22 14:49:54 -0400 | [diff] [blame] | 1230 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 1231 | @_add_method(ttLib.getTableClass('VORG')) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1232 | def subset_glyphs(self, s): |
Behdad Esfahbod | 6890d05 | 2013-11-27 06:26:35 -0500 | [diff] [blame] | 1233 | self.VOriginRecords = dict((g,v) for g,v in self.VOriginRecords.items() |
Behdad Esfahbod | d73f225 | 2013-08-16 10:58:25 -0400 | [diff] [blame] | 1234 | if g in s.glyphs) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1235 | self.numVertOriginYMetrics = len(self.VOriginRecords) |
Behdad Esfahbod | 318adc0 | 2013-08-13 20:09:28 -0400 | [diff] [blame] | 1236 | return True # Never drop; has default metrics |
Behdad Esfahbod | e45d6af | 2013-07-22 15:29:17 -0400 | [diff] [blame] | 1237 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 1238 | @_add_method(ttLib.getTableClass('post')) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1239 | def prune_pre_subset(self, options): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1240 | if not options.glyph_names: |
| 1241 | self.formatType = 3.0 |
Behdad Esfahbod | a6241e6 | 2013-10-28 13:09:25 +0100 | [diff] [blame] | 1242 | return True # Required table |
Behdad Esfahbod | 4264824 | 2013-07-23 12:56:06 -0400 | [diff] [blame] | 1243 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 1244 | @_add_method(ttLib.getTableClass('post')) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1245 | def subset_glyphs(self, s): |
Behdad Esfahbod | 318adc0 | 2013-08-13 20:09:28 -0400 | [diff] [blame] | 1246 | self.extraNames = [] # This seems to do it |
Behdad Esfahbod | a6241e6 | 2013-10-28 13:09:25 +0100 | [diff] [blame] | 1247 | return True # Required table |
Behdad Esfahbod | 653e974 | 2013-07-22 15:17:12 -0400 | [diff] [blame] | 1248 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 1249 | @_add_method(ttLib.getTableModule('glyf').Glyph) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1250 | def remapComponentsFast(self, indices): |
Behdad Esfahbod | 2d82c32 | 2013-08-29 18:02:48 -0400 | [diff] [blame] | 1251 | if not self.data or struct.unpack(">h", self.data[:2])[0] >= 0: |
Behdad Esfahbod | 318adc0 | 2013-08-13 20:09:28 -0400 | [diff] [blame] | 1252 | return # Not composite |
Behdad Esfahbod | d816b7f | 2013-08-16 16:18:40 -0400 | [diff] [blame] | 1253 | data = array.array("B", self.data) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1254 | i = 10 |
| 1255 | more = 1 |
| 1256 | while more: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1257 | flags =(data[i] << 8) | data[i+1] |
| 1258 | glyphID =(data[i+2] << 8) | data[i+3] |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1259 | # Remap |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1260 | glyphID = indices.index(glyphID) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1261 | data[i+2] = glyphID >> 8 |
| 1262 | data[i+3] = glyphID & 0xFF |
| 1263 | i += 4 |
| 1264 | flags = int(flags) |
Behdad Esfahbod | 4cf7a80 | 2013-07-24 16:08:35 -0400 | [diff] [blame] | 1265 | |
Behdad Esfahbod | 80c8a65 | 2013-08-14 12:55:42 -0400 | [diff] [blame] | 1266 | if flags & 0x0001: i += 4 # ARG_1_AND_2_ARE_WORDS |
Behdad Esfahbod | 574ce79 | 2013-08-13 20:51:44 -0400 | [diff] [blame] | 1267 | else: i += 2 |
Behdad Esfahbod | 80c8a65 | 2013-08-14 12:55:42 -0400 | [diff] [blame] | 1268 | if flags & 0x0008: i += 2 # WE_HAVE_A_SCALE |
| 1269 | elif flags & 0x0040: i += 4 # WE_HAVE_AN_X_AND_Y_SCALE |
| 1270 | elif flags & 0x0080: i += 8 # WE_HAVE_A_TWO_BY_TWO |
| 1271 | more = flags & 0x0020 # MORE_COMPONENTS |
| 1272 | |
Behdad Esfahbod | d816b7f | 2013-08-16 16:18:40 -0400 | [diff] [blame] | 1273 | self.data = data.tostring() |
Behdad Esfahbod | 4cf7a80 | 2013-07-24 16:08:35 -0400 | [diff] [blame] | 1274 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 1275 | @_add_method(ttLib.getTableClass('glyf')) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1276 | def closure_glyphs(self, s): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1277 | decompose = s.glyphs |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1278 | while True: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1279 | components = set() |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1280 | for g in decompose: |
| 1281 | if g not in self.glyphs: |
| 1282 | continue |
| 1283 | gl = self.glyphs[g] |
Behdad Esfahbod | 043108c | 2013-09-27 12:59:47 -0400 | [diff] [blame] | 1284 | for c in gl.getComponentNames(self): |
Behdad Esfahbod | 626107c | 2013-09-20 14:10:31 -0400 | [diff] [blame] | 1285 | if c not in s.glyphs: |
| 1286 | components.add(c) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1287 | components = set(c for c in components if c not in s.glyphs) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1288 | if not components: |
| 1289 | break |
| 1290 | decompose = components |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1291 | s.glyphs.update(components) |
Behdad Esfahbod | abb50a1 | 2013-07-23 12:58:37 -0400 | [diff] [blame] | 1292 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 1293 | @_add_method(ttLib.getTableClass('glyf')) |
Behdad Esfahbod | 2d82c32 | 2013-08-29 18:02:48 -0400 | [diff] [blame] | 1294 | def prune_pre_subset(self, options): |
| 1295 | if options.notdef_glyph and not options.notdef_outline: |
| 1296 | g = self[self.glyphOrder[0]] |
| 1297 | # Yay, easy! |
| 1298 | g.__dict__.clear() |
| 1299 | g.data = "" |
| 1300 | return True |
| 1301 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 1302 | @_add_method(ttLib.getTableClass('glyf')) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1303 | def subset_glyphs(self, s): |
Behdad Esfahbod | 6890d05 | 2013-11-27 06:26:35 -0500 | [diff] [blame] | 1304 | self.glyphs = dict((g,v) for g,v in self.glyphs.items() if g in s.glyphs) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1305 | indices = [i for i,g in enumerate(self.glyphOrder) if g in s.glyphs] |
Behdad Esfahbod | 6890d05 | 2013-11-27 06:26:35 -0500 | [diff] [blame] | 1306 | for v in self.glyphs.values(): |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1307 | if hasattr(v, "data"): |
| 1308 | v.remapComponentsFast(indices) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1309 | else: |
Behdad Esfahbod | 318adc0 | 2013-08-13 20:09:28 -0400 | [diff] [blame] | 1310 | pass # No need |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1311 | self.glyphOrder = [g for g in self.glyphOrder if g in s.glyphs] |
Behdad Esfahbod | b69b671 | 2013-08-29 18:17:31 -0400 | [diff] [blame] | 1312 | # Don't drop empty 'glyf' tables, otherwise 'loca' doesn't get subset. |
| 1313 | return True |
Behdad Esfahbod | 861d915 | 2013-07-22 16:47:24 -0400 | [diff] [blame] | 1314 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 1315 | @_add_method(ttLib.getTableClass('glyf')) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1316 | def prune_post_subset(self, options): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1317 | if not options.hinting: |
Behdad Esfahbod | 6890d05 | 2013-11-27 06:26:35 -0500 | [diff] [blame] | 1318 | for v in self.glyphs.values(): |
Behdad Esfahbod | 626107c | 2013-09-20 14:10:31 -0400 | [diff] [blame] | 1319 | v.removeHinting() |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1320 | return True |
Behdad Esfahbod | ed98c61 | 2013-07-23 12:37:41 -0400 | [diff] [blame] | 1321 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 1322 | @_add_method(ttLib.getTableClass('CFF ')) |
Behdad Esfahbod | d315c91 | 2013-08-14 18:18:51 -0400 | [diff] [blame] | 1323 | def prune_pre_subset(self, options): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1324 | cff = self.cff |
Behdad Esfahbod | e062207 | 2013-09-10 14:33:19 -0400 | [diff] [blame] | 1325 | # CFF table must have one font only |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1326 | cff.fontNames = cff.fontNames[:1] |
Behdad Esfahbod | 2d82c32 | 2013-08-29 18:02:48 -0400 | [diff] [blame] | 1327 | |
| 1328 | if options.notdef_glyph and not options.notdef_outline: |
| 1329 | for fontname in cff.keys(): |
| 1330 | font = cff[fontname] |
| 1331 | c,_ = font.CharStrings.getItemAndSelector('.notdef') |
Behdad Esfahbod | 21582e9 | 2013-09-12 16:47:52 -0400 | [diff] [blame] | 1332 | # XXX we should preserve the glyph width |
Behdad Esfahbod | 2d82c32 | 2013-08-29 18:02:48 -0400 | [diff] [blame] | 1333 | c.bytecode = '\x0e' # endchar |
| 1334 | c.program = None |
| 1335 | |
Behdad Esfahbod | 50f83ef | 2013-08-29 18:18:17 -0400 | [diff] [blame] | 1336 | return True # bool(cff.fontNames) |
Behdad Esfahbod | 1a4e72e | 2013-08-13 15:46:37 -0400 | [diff] [blame] | 1337 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 1338 | @_add_method(ttLib.getTableClass('CFF ')) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1339 | def subset_glyphs(self, s): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1340 | cff = self.cff |
| 1341 | for fontname in cff.keys(): |
| 1342 | font = cff[fontname] |
| 1343 | cs = font.CharStrings |
Behdad Esfahbod | 9290fb4 | 2013-08-14 17:48:31 -0400 | [diff] [blame] | 1344 | |
Behdad Esfahbod | d315c91 | 2013-08-14 18:18:51 -0400 | [diff] [blame] | 1345 | # Load all glyphs |
Behdad Esfahbod | 9290fb4 | 2013-08-14 17:48:31 -0400 | [diff] [blame] | 1346 | for g in font.charset: |
| 1347 | if g not in s.glyphs: continue |
| 1348 | c,sel = cs.getItemAndSelector(g) |
Behdad Esfahbod | 9290fb4 | 2013-08-14 17:48:31 -0400 | [diff] [blame] | 1349 | |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1350 | if cs.charStringsAreIndexed: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1351 | indices = [i for i,g in enumerate(font.charset) if g in s.glyphs] |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1352 | csi = cs.charStringsIndex |
| 1353 | csi.items = [csi.items[i] for i in indices] |
Behdad Esfahbod | 9290fb4 | 2013-08-14 17:48:31 -0400 | [diff] [blame] | 1354 | csi.count = len(csi.items) |
Behdad Esfahbod | d315c91 | 2013-08-14 18:18:51 -0400 | [diff] [blame] | 1355 | del csi.file, csi.offsets |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1356 | if hasattr(font, "FDSelect"): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1357 | sel = font.FDSelect |
| 1358 | sel.format = None |
Behdad Esfahbod | d315c91 | 2013-08-14 18:18:51 -0400 | [diff] [blame] | 1359 | sel.gidArray = [sel.gidArray[i] for i in indices] |
Behdad Esfahbod | d73f225 | 2013-08-16 10:58:25 -0400 | [diff] [blame] | 1360 | cs.charStrings = dict((g,indices.index(v)) |
Behdad Esfahbod | 6890d05 | 2013-11-27 06:26:35 -0500 | [diff] [blame] | 1361 | for g,v in cs.charStrings.items() |
Behdad Esfahbod | d73f225 | 2013-08-16 10:58:25 -0400 | [diff] [blame] | 1362 | if g in s.glyphs) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1363 | else: |
Behdad Esfahbod | d73f225 | 2013-08-16 10:58:25 -0400 | [diff] [blame] | 1364 | cs.charStrings = dict((g,v) |
Behdad Esfahbod | 6890d05 | 2013-11-27 06:26:35 -0500 | [diff] [blame] | 1365 | for g,v in cs.charStrings.items() |
Behdad Esfahbod | d73f225 | 2013-08-16 10:58:25 -0400 | [diff] [blame] | 1366 | if g in s.glyphs) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1367 | font.charset = [g for g in font.charset if g in s.glyphs] |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1368 | font.numGlyphs = len(font.charset) |
Behdad Esfahbod | 9290fb4 | 2013-08-14 17:48:31 -0400 | [diff] [blame] | 1369 | |
Behdad Esfahbod | 50f83ef | 2013-08-29 18:18:17 -0400 | [diff] [blame] | 1370 | return True # any(cff[fontname].numGlyphs for fontname in cff.keys()) |
Behdad Esfahbod | d315c91 | 2013-08-14 18:18:51 -0400 | [diff] [blame] | 1371 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 1372 | @_add_method(psCharStrings.T2CharString) |
Behdad Esfahbod | b4ea953 | 2013-08-14 19:37:39 -0400 | [diff] [blame] | 1373 | def subset_subroutines(self, subrs, gsubrs): |
| 1374 | p = self.program |
Behdad Esfahbod | e062207 | 2013-09-10 14:33:19 -0400 | [diff] [blame] | 1375 | assert len(p) |
Behdad Esfahbod | b466efe | 2013-11-27 03:34:35 -0500 | [diff] [blame] | 1376 | for i in range(1, len(p)): |
Behdad Esfahbod | b4ea953 | 2013-08-14 19:37:39 -0400 | [diff] [blame] | 1377 | if p[i] == 'callsubr': |
Behdad Esfahbod | c2e2e83 | 2013-11-27 04:15:27 -0500 | [diff] [blame] | 1378 | assert isinstance(p[i-1], int) |
Behdad Esfahbod | b4ea953 | 2013-08-14 19:37:39 -0400 | [diff] [blame] | 1379 | p[i-1] = subrs._used.index(p[i-1] + subrs._old_bias) - subrs._new_bias |
| 1380 | elif p[i] == 'callgsubr': |
Behdad Esfahbod | c2e2e83 | 2013-11-27 04:15:27 -0500 | [diff] [blame] | 1381 | assert isinstance(p[i-1], int) |
Behdad Esfahbod | b4ea953 | 2013-08-14 19:37:39 -0400 | [diff] [blame] | 1382 | p[i-1] = gsubrs._used.index(p[i-1] + gsubrs._old_bias) - gsubrs._new_bias |
| 1383 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 1384 | @_add_method(psCharStrings.T2CharString) |
Behdad Esfahbod | e062207 | 2013-09-10 14:33:19 -0400 | [diff] [blame] | 1385 | def drop_hints(self): |
| 1386 | hints = self._hints |
| 1387 | |
| 1388 | if hints.has_hint: |
| 1389 | self.program = self.program[hints.last_hint:] |
Behdad Esfahbod | 285d7b8 | 2013-09-10 20:30:47 -0400 | [diff] [blame] | 1390 | if hasattr(self, 'width'): |
| 1391 | # Insert width back if needed |
| 1392 | if self.width != self.private.defaultWidthX: |
Behdad Esfahbod | 9953685 | 2013-09-12 00:23:11 -0400 | [diff] [blame] | 1393 | self.program.insert(0, self.width - self.private.nominalWidthX) |
Behdad Esfahbod | e062207 | 2013-09-10 14:33:19 -0400 | [diff] [blame] | 1394 | |
| 1395 | if hints.has_hintmask: |
| 1396 | i = 0 |
| 1397 | p = self.program |
| 1398 | while i < len(p): |
| 1399 | if p[i] in ['hintmask', 'cntrmask']: |
| 1400 | assert i + 1 <= len(p) |
| 1401 | del p[i:i+2] |
| 1402 | continue |
| 1403 | i += 1 |
| 1404 | |
Behdad Esfahbod | 2a70f4a | 2013-10-28 15:18:07 +0100 | [diff] [blame] | 1405 | # TODO: we currently don't drop calls to "empty" subroutines. |
| 1406 | |
Behdad Esfahbod | e062207 | 2013-09-10 14:33:19 -0400 | [diff] [blame] | 1407 | assert len(self.program) |
| 1408 | |
| 1409 | del self._hints |
| 1410 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 1411 | class _MarkingT2Decompiler(psCharStrings.SimpleT2Decompiler): |
Behdad Esfahbod | e062207 | 2013-09-10 14:33:19 -0400 | [diff] [blame] | 1412 | |
| 1413 | def __init__(self, localSubrs, globalSubrs): |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 1414 | psCharStrings.SimpleT2Decompiler.__init__(self, |
| 1415 | localSubrs, |
| 1416 | globalSubrs) |
Behdad Esfahbod | e062207 | 2013-09-10 14:33:19 -0400 | [diff] [blame] | 1417 | for subrs in [localSubrs, globalSubrs]: |
| 1418 | if subrs and not hasattr(subrs, "_used"): |
| 1419 | subrs._used = set() |
| 1420 | |
| 1421 | def op_callsubr(self, index): |
| 1422 | self.localSubrs._used.add(self.operandStack[-1]+self.localBias) |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 1423 | psCharStrings.SimpleT2Decompiler.op_callsubr(self, index) |
Behdad Esfahbod | e062207 | 2013-09-10 14:33:19 -0400 | [diff] [blame] | 1424 | |
| 1425 | def op_callgsubr(self, index): |
| 1426 | self.globalSubrs._used.add(self.operandStack[-1]+self.globalBias) |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 1427 | psCharStrings.SimpleT2Decompiler.op_callgsubr(self, index) |
Behdad Esfahbod | e062207 | 2013-09-10 14:33:19 -0400 | [diff] [blame] | 1428 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 1429 | class _DehintingT2Decompiler(psCharStrings.SimpleT2Decompiler): |
Behdad Esfahbod | e062207 | 2013-09-10 14:33:19 -0400 | [diff] [blame] | 1430 | |
Behdad Esfahbod | 1f26289 | 2013-11-28 14:26:39 -0500 | [diff] [blame] | 1431 | class Hints(object): |
Behdad Esfahbod | e062207 | 2013-09-10 14:33:19 -0400 | [diff] [blame] | 1432 | def __init__(self): |
| 1433 | # Whether calling this charstring produces any hint stems |
| 1434 | self.has_hint = False |
| 1435 | # Index to start at to drop all hints |
| 1436 | self.last_hint = 0 |
| 1437 | # Index up to which we know more hints are possible. Only |
| 1438 | # relevant if status is 0 or 1. |
| 1439 | self.last_checked = 0 |
| 1440 | # The status means: |
| 1441 | # 0: after dropping hints, this charstring is empty |
| 1442 | # 1: after dropping hints, there may be more hints continuing after this |
| 1443 | # 2: no more hints possible after this charstring |
| 1444 | self.status = 0 |
| 1445 | # Has hintmask instructions; not recursive |
| 1446 | self.has_hintmask = False |
| 1447 | pass |
| 1448 | |
| 1449 | def __init__(self, css, localSubrs, globalSubrs): |
| 1450 | self._css = css |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 1451 | psCharStrings.SimpleT2Decompiler.__init__(self, |
| 1452 | localSubrs, |
| 1453 | globalSubrs) |
Behdad Esfahbod | e062207 | 2013-09-10 14:33:19 -0400 | [diff] [blame] | 1454 | |
| 1455 | def execute(self, charString): |
| 1456 | old_hints = charString._hints if hasattr(charString, '_hints') else None |
| 1457 | charString._hints = self.Hints() |
| 1458 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 1459 | psCharStrings.SimpleT2Decompiler.execute(self, charString) |
Behdad Esfahbod | e062207 | 2013-09-10 14:33:19 -0400 | [diff] [blame] | 1460 | |
| 1461 | hints = charString._hints |
| 1462 | |
| 1463 | if hints.has_hint or hints.has_hintmask: |
| 1464 | self._css.add(charString) |
| 1465 | |
| 1466 | if hints.status != 2: |
| 1467 | # Check from last_check, make sure we didn't have any operators. |
Behdad Esfahbod | b466efe | 2013-11-27 03:34:35 -0500 | [diff] [blame] | 1468 | for i in range(hints.last_checked, len(charString.program) - 1): |
Behdad Esfahbod | c2e2e83 | 2013-11-27 04:15:27 -0500 | [diff] [blame] | 1469 | if isinstance(charString.program[i], str): |
Behdad Esfahbod | e062207 | 2013-09-10 14:33:19 -0400 | [diff] [blame] | 1470 | hints.status = 2 |
| 1471 | break; |
| 1472 | else: |
| 1473 | hints.status = 1 # There's *something* here |
| 1474 | hints.last_checked = len(charString.program) |
| 1475 | |
| 1476 | if old_hints: |
| 1477 | assert hints.__dict__ == old_hints.__dict__ |
| 1478 | |
| 1479 | def op_callsubr(self, index): |
| 1480 | subr = self.localSubrs[self.operandStack[-1]+self.localBias] |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 1481 | psCharStrings.SimpleT2Decompiler.op_callsubr(self, index) |
Behdad Esfahbod | e062207 | 2013-09-10 14:33:19 -0400 | [diff] [blame] | 1482 | self.processSubr(index, subr) |
| 1483 | |
| 1484 | def op_callgsubr(self, index): |
| 1485 | subr = self.globalSubrs[self.operandStack[-1]+self.globalBias] |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 1486 | psCharStrings.SimpleT2Decompiler.op_callgsubr(self, index) |
Behdad Esfahbod | e062207 | 2013-09-10 14:33:19 -0400 | [diff] [blame] | 1487 | self.processSubr(index, subr) |
| 1488 | |
| 1489 | def op_hstem(self, index): |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 1490 | psCharStrings.SimpleT2Decompiler.op_hstem(self, index) |
Behdad Esfahbod | e062207 | 2013-09-10 14:33:19 -0400 | [diff] [blame] | 1491 | self.processHint(index) |
| 1492 | def op_vstem(self, index): |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 1493 | psCharStrings.SimpleT2Decompiler.op_vstem(self, index) |
Behdad Esfahbod | e062207 | 2013-09-10 14:33:19 -0400 | [diff] [blame] | 1494 | self.processHint(index) |
| 1495 | def op_hstemhm(self, index): |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 1496 | psCharStrings.SimpleT2Decompiler.op_hstemhm(self, index) |
Behdad Esfahbod | e062207 | 2013-09-10 14:33:19 -0400 | [diff] [blame] | 1497 | self.processHint(index) |
| 1498 | def op_vstemhm(self, index): |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 1499 | psCharStrings.SimpleT2Decompiler.op_vstemhm(self, index) |
Behdad Esfahbod | e062207 | 2013-09-10 14:33:19 -0400 | [diff] [blame] | 1500 | self.processHint(index) |
| 1501 | def op_hintmask(self, index): |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 1502 | psCharStrings.SimpleT2Decompiler.op_hintmask(self, index) |
Behdad Esfahbod | e062207 | 2013-09-10 14:33:19 -0400 | [diff] [blame] | 1503 | self.processHintmask(index) |
| 1504 | def op_cntrmask(self, index): |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 1505 | psCharStrings.SimpleT2Decompiler.op_cntrmask(self, index) |
Behdad Esfahbod | e062207 | 2013-09-10 14:33:19 -0400 | [diff] [blame] | 1506 | self.processHintmask(index) |
| 1507 | |
| 1508 | def processHintmask(self, index): |
| 1509 | cs = self.callingStack[-1] |
| 1510 | hints = cs._hints |
| 1511 | hints.has_hintmask = True |
| 1512 | if hints.status != 2 and hints.has_hint: |
| 1513 | # Check from last_check, see if we may be an implicit vstem |
Behdad Esfahbod | b466efe | 2013-11-27 03:34:35 -0500 | [diff] [blame] | 1514 | for i in range(hints.last_checked, index - 1): |
Behdad Esfahbod | c2e2e83 | 2013-11-27 04:15:27 -0500 | [diff] [blame] | 1515 | if isinstance(cs.program[i], str): |
Behdad Esfahbod | 8476314 | 2013-09-10 19:00:48 -0400 | [diff] [blame] | 1516 | hints.status = 2 |
Behdad Esfahbod | e062207 | 2013-09-10 14:33:19 -0400 | [diff] [blame] | 1517 | break; |
Behdad Esfahbod | 8476314 | 2013-09-10 19:00:48 -0400 | [diff] [blame] | 1518 | if hints.status != 2: |
Behdad Esfahbod | e062207 | 2013-09-10 14:33:19 -0400 | [diff] [blame] | 1519 | # We are an implicit vstem |
| 1520 | hints.last_hint = index + 1 |
Behdad Esfahbod | 8476314 | 2013-09-10 19:00:48 -0400 | [diff] [blame] | 1521 | hints.status = 0 |
Behdad Esfahbod | 2a70f4a | 2013-10-28 15:18:07 +0100 | [diff] [blame] | 1522 | hints.last_checked = index + 1 |
Behdad Esfahbod | e062207 | 2013-09-10 14:33:19 -0400 | [diff] [blame] | 1523 | |
| 1524 | def processHint(self, index): |
| 1525 | cs = self.callingStack[-1] |
| 1526 | hints = cs._hints |
| 1527 | hints.has_hint = True |
| 1528 | hints.last_hint = index |
| 1529 | hints.last_checked = index |
| 1530 | |
| 1531 | def processSubr(self, index, subr): |
| 1532 | cs = self.callingStack[-1] |
| 1533 | hints = cs._hints |
| 1534 | subr_hints = subr._hints |
| 1535 | |
| 1536 | if subr_hints.has_hint: |
Behdad Esfahbod | 285d7b8 | 2013-09-10 20:30:47 -0400 | [diff] [blame] | 1537 | if hints.status != 2: |
| 1538 | hints.has_hint = True |
Behdad Esfahbod | 9953685 | 2013-09-12 00:23:11 -0400 | [diff] [blame] | 1539 | hints.last_checked = index |
| 1540 | hints.status = subr_hints.status |
Behdad Esfahbod | 285d7b8 | 2013-09-10 20:30:47 -0400 | [diff] [blame] | 1541 | # Decide where to chop off from |
| 1542 | if subr_hints.status == 0: |
Behdad Esfahbod | 9953685 | 2013-09-12 00:23:11 -0400 | [diff] [blame] | 1543 | hints.last_hint = index |
Behdad Esfahbod | 285d7b8 | 2013-09-10 20:30:47 -0400 | [diff] [blame] | 1544 | else: |
Behdad Esfahbod | 9953685 | 2013-09-12 00:23:11 -0400 | [diff] [blame] | 1545 | hints.last_hint = index - 2 # Leave the subr call in |
Behdad Esfahbod | e062207 | 2013-09-10 14:33:19 -0400 | [diff] [blame] | 1546 | else: |
Behdad Esfahbod | 285d7b8 | 2013-09-10 20:30:47 -0400 | [diff] [blame] | 1547 | # In my understanding, this is a font bug. Ie. it has hint stems |
| 1548 | # *after* path construction. I've seen this in widespread fonts. |
| 1549 | # Best to ignore the hints I suppose... |
| 1550 | pass |
| 1551 | #assert 0 |
Behdad Esfahbod | e062207 | 2013-09-10 14:33:19 -0400 | [diff] [blame] | 1552 | else: |
| 1553 | hints.status = max(hints.status, subr_hints.status) |
| 1554 | if hints.status != 2: |
| 1555 | # Check from last_check, make sure we didn't have |
| 1556 | # any operators. |
Behdad Esfahbod | b466efe | 2013-11-27 03:34:35 -0500 | [diff] [blame] | 1557 | for i in range(hints.last_checked, index - 1): |
Behdad Esfahbod | c2e2e83 | 2013-11-27 04:15:27 -0500 | [diff] [blame] | 1558 | if isinstance(cs.program[i], str): |
Behdad Esfahbod | e062207 | 2013-09-10 14:33:19 -0400 | [diff] [blame] | 1559 | hints.status = 2 |
| 1560 | break; |
| 1561 | hints.last_checked = index |
Behdad Esfahbod | 2a70f4a | 2013-10-28 15:18:07 +0100 | [diff] [blame] | 1562 | if hints.status != 2: |
| 1563 | # Decide where to chop off from |
| 1564 | if subr_hints.status == 0: |
| 1565 | hints.last_hint = index |
| 1566 | else: |
| 1567 | hints.last_hint = index - 2 # Leave the subr call in |
Behdad Esfahbod | e062207 | 2013-09-10 14:33:19 -0400 | [diff] [blame] | 1568 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 1569 | @_add_method(ttLib.getTableClass('CFF ')) |
Behdad Esfahbod | d315c91 | 2013-08-14 18:18:51 -0400 | [diff] [blame] | 1570 | def prune_post_subset(self, options): |
| 1571 | cff = self.cff |
Behdad Esfahbod | d315c91 | 2013-08-14 18:18:51 -0400 | [diff] [blame] | 1572 | for fontname in cff.keys(): |
| 1573 | font = cff[fontname] |
| 1574 | cs = font.CharStrings |
| 1575 | |
Behdad Esfahbod | e062207 | 2013-09-10 14:33:19 -0400 | [diff] [blame] | 1576 | |
| 1577 | # |
Behdad Esfahbod | 3c20a13 | 2013-08-14 19:39:00 -0400 | [diff] [blame] | 1578 | # Drop unused FontDictionaries |
Behdad Esfahbod | e062207 | 2013-09-10 14:33:19 -0400 | [diff] [blame] | 1579 | # |
Behdad Esfahbod | d315c91 | 2013-08-14 18:18:51 -0400 | [diff] [blame] | 1580 | if hasattr(font, "FDSelect"): |
Behdad Esfahbod | d315c91 | 2013-08-14 18:18:51 -0400 | [diff] [blame] | 1581 | sel = font.FDSelect |
| 1582 | indices = _uniq_sort(sel.gidArray) |
| 1583 | sel.gidArray = [indices.index (ss) for ss in sel.gidArray] |
| 1584 | arr = font.FDArray |
Behdad Esfahbod | 3c20a13 | 2013-08-14 19:39:00 -0400 | [diff] [blame] | 1585 | arr.items = [arr[i] for i in indices] |
Behdad Esfahbod | d315c91 | 2013-08-14 18:18:51 -0400 | [diff] [blame] | 1586 | arr.count = len(arr.items) |
| 1587 | del arr.file, arr.offsets |
Behdad Esfahbod | 1a4e72e | 2013-08-13 15:46:37 -0400 | [diff] [blame] | 1588 | |
Behdad Esfahbod | e062207 | 2013-09-10 14:33:19 -0400 | [diff] [blame] | 1589 | |
| 1590 | # |
| 1591 | # Drop hints if not needed |
| 1592 | # |
| 1593 | if not options.hinting: |
| 1594 | |
| 1595 | # |
| 1596 | # This can be tricky, but doesn't have to. What we do is: |
| 1597 | # |
| 1598 | # - Run all used glyph charstrings and recurse into subroutines, |
| 1599 | # - For each charstring (including subroutines), if it has any |
| 1600 | # of the hint stem operators, we mark it as such. Upon returning, |
| 1601 | # for each charstring we note all the subroutine calls it makes |
| 1602 | # that (recursively) contain a stem, |
| 1603 | # - Dropping hinting then consists of the following two ops: |
| 1604 | # * Drop the piece of the program in each charstring before the |
| 1605 | # last call to a stem op or a stem-calling subroutine, |
| 1606 | # * Drop all hintmask operations. |
| 1607 | # - It's trickier... A hintmask right after hints and a few numbers |
| 1608 | # will act as an implicit vstemhm. As such, we track whether |
| 1609 | # we have seen any non-hint operators so far and do the right |
| 1610 | # thing, recursively... Good luck understanding that :( |
| 1611 | # |
| 1612 | css = set() |
| 1613 | for g in font.charset: |
| 1614 | c,sel = cs.getItemAndSelector(g) |
| 1615 | # Make sure it's decompiled. We want our "decompiler" to walk |
| 1616 | # the program, not the bytecode. |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 1617 | c.draw(basePen.NullPen()) |
Behdad Esfahbod | e062207 | 2013-09-10 14:33:19 -0400 | [diff] [blame] | 1618 | subrs = getattr(c.private, "Subrs", []) |
| 1619 | decompiler = _DehintingT2Decompiler(css, subrs, c.globalSubrs) |
| 1620 | decompiler.execute(c) |
| 1621 | for charstring in css: |
| 1622 | charstring.drop_hints() |
| 1623 | |
Behdad Esfahbod | 16fc323 | 2013-09-30 15:09:27 -0400 | [diff] [blame] | 1624 | # Drop font-wide hinting values |
| 1625 | all_privs = [] |
| 1626 | if hasattr(font, 'FDSelect'): |
| 1627 | all_privs.extend(fd.Private for fd in font.FDArray) |
| 1628 | else: |
| 1629 | all_privs.append(font.Private) |
| 1630 | for priv in all_privs: |
Behdad Esfahbod | 4d99d14 | 2013-10-28 13:15:08 +0100 | [diff] [blame] | 1631 | for k in ['BlueValues', 'OtherBlues', 'FamilyBlues', 'FamilyOtherBlues', |
| 1632 | 'BlueScale', 'BlueShift', 'BlueFuzz', |
| 1633 | 'StemSnapH', 'StemSnapV', 'StdHW', 'StdVW']: |
Behdad Esfahbod | 16fc323 | 2013-09-30 15:09:27 -0400 | [diff] [blame] | 1634 | if hasattr(priv, k): |
| 1635 | setattr(priv, k, None) |
| 1636 | |
Behdad Esfahbod | e062207 | 2013-09-10 14:33:19 -0400 | [diff] [blame] | 1637 | |
| 1638 | # |
| 1639 | # Renumber subroutines to remove unused ones |
| 1640 | # |
| 1641 | |
Behdad Esfahbod | 2f3a4b9 | 2013-08-14 19:18:50 -0400 | [diff] [blame] | 1642 | # Mark all used subroutines |
| 1643 | for g in font.charset: |
| 1644 | c,sel = cs.getItemAndSelector(g) |
| 1645 | subrs = getattr(c.private, "Subrs", []) |
| 1646 | decompiler = _MarkingT2Decompiler(subrs, c.globalSubrs) |
| 1647 | decompiler.execute(c) |
| 1648 | |
Behdad Esfahbod | 2f3a4b9 | 2013-08-14 19:18:50 -0400 | [diff] [blame] | 1649 | all_subrs = [font.GlobalSubrs] |
Behdad Esfahbod | 83f1f5c | 2013-08-30 16:20:08 -0400 | [diff] [blame] | 1650 | if hasattr(font, 'FDSelect'): |
Behdad Esfahbod | e062207 | 2013-09-10 14:33:19 -0400 | [diff] [blame] | 1651 | all_subrs.extend(fd.Private.Subrs for fd in font.FDArray if hasattr(fd.Private, 'Subrs') and fd.Private.Subrs) |
| 1652 | elif hasattr(font.Private, 'Subrs') and font.Private.Subrs: |
Behdad Esfahbod | cbcaccf | 2013-08-30 16:21:38 -0400 | [diff] [blame] | 1653 | all_subrs.append(font.Private.Subrs) |
Behdad Esfahbod | e062207 | 2013-09-10 14:33:19 -0400 | [diff] [blame] | 1654 | |
| 1655 | subrs = set(subrs) # Remove duplicates |
| 1656 | |
Behdad Esfahbod | 2f3a4b9 | 2013-08-14 19:18:50 -0400 | [diff] [blame] | 1657 | # Prepare |
| 1658 | for subrs in all_subrs: |
Behdad Esfahbod | 2f3a4b9 | 2013-08-14 19:18:50 -0400 | [diff] [blame] | 1659 | if not hasattr(subrs, '_used'): |
| 1660 | subrs._used = set() |
| 1661 | subrs._used = _uniq_sort(subrs._used) |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 1662 | subrs._old_bias = psCharStrings.calcSubrBias(subrs) |
| 1663 | subrs._new_bias = psCharStrings.calcSubrBias(subrs._used) |
Behdad Esfahbod | e062207 | 2013-09-10 14:33:19 -0400 | [diff] [blame] | 1664 | |
Behdad Esfahbod | ed10771 | 2013-08-14 19:54:13 -0400 | [diff] [blame] | 1665 | # Renumber glyph charstrings |
| 1666 | for g in font.charset: |
| 1667 | c,sel = cs.getItemAndSelector(g) |
| 1668 | subrs = getattr(c.private, "Subrs", []) |
| 1669 | c.subset_subroutines (subrs, font.GlobalSubrs) |
Behdad Esfahbod | e062207 | 2013-09-10 14:33:19 -0400 | [diff] [blame] | 1670 | |
Behdad Esfahbod | 2f3a4b9 | 2013-08-14 19:18:50 -0400 | [diff] [blame] | 1671 | # Renumber subroutines themselves |
| 1672 | for subrs in all_subrs: |
Behdad Esfahbod | e062207 | 2013-09-10 14:33:19 -0400 | [diff] [blame] | 1673 | |
| 1674 | if subrs == font.GlobalSubrs: |
| 1675 | if not hasattr(font, 'FDSelect') and hasattr(font.Private, 'Subrs'): |
| 1676 | local_subrs = font.Private.Subrs |
Behdad Esfahbod | 83f1f5c | 2013-08-30 16:20:08 -0400 | [diff] [blame] | 1677 | else: |
Behdad Esfahbod | e062207 | 2013-09-10 14:33:19 -0400 | [diff] [blame] | 1678 | local_subrs = [] |
| 1679 | else: |
| 1680 | local_subrs = subrs |
| 1681 | |
| 1682 | subrs.items = [subrs.items[i] for i in subrs._used] |
| 1683 | subrs.count = len(subrs.items) |
| 1684 | del subrs.file |
| 1685 | if hasattr(subrs, 'offsets'): |
| 1686 | del subrs.offsets |
| 1687 | |
Behdad Esfahbod | b466efe | 2013-11-27 03:34:35 -0500 | [diff] [blame] | 1688 | for i in range (subrs.count): |
Behdad Esfahbod | 83f1f5c | 2013-08-30 16:20:08 -0400 | [diff] [blame] | 1689 | subrs[i].subset_subroutines (local_subrs, font.GlobalSubrs) |
Behdad Esfahbod | e062207 | 2013-09-10 14:33:19 -0400 | [diff] [blame] | 1690 | |
Behdad Esfahbod | 2f3a4b9 | 2013-08-14 19:18:50 -0400 | [diff] [blame] | 1691 | # Cleanup |
| 1692 | for subrs in all_subrs: |
Behdad Esfahbod | 2f3a4b9 | 2013-08-14 19:18:50 -0400 | [diff] [blame] | 1693 | del subrs._used, subrs._old_bias, subrs._new_bias |
| 1694 | |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1695 | return True |
Behdad Esfahbod | 2b677c8 | 2013-07-23 13:37:13 -0400 | [diff] [blame] | 1696 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 1697 | @_add_method(ttLib.getTableClass('cmap')) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1698 | def closure_glyphs(self, s): |
Behdad Esfahbod | 2007a49 | 2014-03-12 12:26:41 -0700 | [diff] [blame] | 1699 | tables = [t for t in self.tables if t.isUnicode()] |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1700 | for u in s.unicodes_requested: |
| 1701 | found = False |
| 1702 | for table in tables: |
| 1703 | if u in table.cmap: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1704 | s.glyphs.add(table.cmap[u]) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1705 | found = True |
| 1706 | break |
| 1707 | if not found: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1708 | s.log("No glyph for Unicode value %s; skipping." % u) |
Behdad Esfahbod | 8c8ff45 | 2013-07-31 19:47:37 -0400 | [diff] [blame] | 1709 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 1710 | @_add_method(ttLib.getTableClass('cmap')) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1711 | def prune_pre_subset(self, options): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1712 | if not options.legacy_cmap: |
| 1713 | # Drop non-Unicode / non-Symbol cmaps |
Behdad Esfahbod | 2007a49 | 2014-03-12 12:26:41 -0700 | [diff] [blame] | 1714 | self.tables = [t for t in self.tables if t.isUnicode() or t.isSymbol()] |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1715 | if not options.symbol_cmap: |
Behdad Esfahbod | 2007a49 | 2014-03-12 12:26:41 -0700 | [diff] [blame] | 1716 | self.tables = [t for t in self.tables if not t.isSymbol()] |
Behdad Esfahbod | 71f7c74 | 2013-08-13 20:16:16 -0400 | [diff] [blame] | 1717 | # TODO(behdad) Only keep one subtable? |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1718 | # For now, drop format=0 which can't be subset_glyphs easily? |
| 1719 | self.tables = [t for t in self.tables if t.format != 0] |
Behdad Esfahbod | fd92d4c | 2013-09-19 19:43:09 -0400 | [diff] [blame] | 1720 | self.numSubTables = len(self.tables) |
Behdad Esfahbod | a6241e6 | 2013-10-28 13:09:25 +0100 | [diff] [blame] | 1721 | return True # Required table |
Behdad Esfahbod | abb50a1 | 2013-07-23 12:58:37 -0400 | [diff] [blame] | 1722 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 1723 | @_add_method(ttLib.getTableClass('cmap')) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1724 | def subset_glyphs(self, s): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1725 | s.glyphs = s.glyphs_cmaped |
| 1726 | for t in self.tables: |
| 1727 | # For reasons I don't understand I need this here |
| 1728 | # to force decompilation of the cmap format 14. |
| 1729 | try: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1730 | getattr(t, "asdf") |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1731 | except AttributeError: |
| 1732 | pass |
| 1733 | if t.format == 14: |
Behdad Esfahbod | 71f7c74 | 2013-08-13 20:16:16 -0400 | [diff] [blame] | 1734 | # TODO(behdad) XXX We drop all the default-UVS mappings(g==None). |
Behdad Esfahbod | d73f225 | 2013-08-16 10:58:25 -0400 | [diff] [blame] | 1735 | t.uvsDict = dict((v,[(u,g) for u,g in l if g in s.glyphs]) |
Behdad Esfahbod | 6890d05 | 2013-11-27 06:26:35 -0500 | [diff] [blame] | 1736 | for v,l in t.uvsDict.items()) |
| 1737 | t.uvsDict = dict((v,l) for v,l in t.uvsDict.items() if l) |
Behdad Esfahbod | 11580c5 | 2014-03-13 17:34:35 -0700 | [diff] [blame] | 1738 | elif t.isUnicode(): |
| 1739 | t.cmap = dict((u,g) for u,g in t.cmap.items() |
| 1740 | if g in s.glyphs_requested or u in s.unicodes_requested) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1741 | else: |
Behdad Esfahbod | 11580c5 | 2014-03-13 17:34:35 -0700 | [diff] [blame] | 1742 | t.cmap = dict((u,g) for u,g in t.cmap.items() |
| 1743 | if g in s.glyphs_requested) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1744 | self.tables = [t for t in self.tables |
Behdad Esfahbod | 4734be5 | 2013-08-14 19:47:42 -0400 | [diff] [blame] | 1745 | if (t.cmap if t.format != 14 else t.uvsDict)] |
Behdad Esfahbod | fd92d4c | 2013-09-19 19:43:09 -0400 | [diff] [blame] | 1746 | self.numSubTables = len(self.tables) |
Behdad Esfahbod | 71f7c74 | 2013-08-13 20:16:16 -0400 | [diff] [blame] | 1747 | # TODO(behdad) Convert formats when needed. |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1748 | # In particular, if we have a format=12 without non-BMP |
| 1749 | # characters, either drop format=12 one or convert it |
| 1750 | # to format=4 if there's not one. |
Behdad Esfahbod | a6241e6 | 2013-10-28 13:09:25 +0100 | [diff] [blame] | 1751 | return True # Required table |
Behdad Esfahbod | 61addb4 | 2013-07-23 11:03:49 -0400 | [diff] [blame] | 1752 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 1753 | @_add_method(ttLib.getTableClass('name')) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1754 | def prune_pre_subset(self, options): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1755 | if '*' not in options.name_IDs: |
| 1756 | self.names = [n for n in self.names if n.nameID in options.name_IDs] |
| 1757 | if not options.name_legacy: |
Behdad Esfahbod | a08b1b1 | 2014-03-12 12:33:40 -0700 | [diff] [blame] | 1758 | self.names = [n for n in self.names if n.isUnicode()] |
| 1759 | # TODO(behdad) Option to keep only one platform's |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1760 | if '*' not in options.name_languages: |
Behdad Esfahbod | a08b1b1 | 2014-03-12 12:33:40 -0700 | [diff] [blame] | 1761 | # TODO(behdad) This is Windows-platform specific! |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1762 | self.names = [n for n in self.names if n.langID in options.name_languages] |
Behdad Esfahbod | a6241e6 | 2013-10-28 13:09:25 +0100 | [diff] [blame] | 1763 | return True # Required table |
Behdad Esfahbod | 653e974 | 2013-07-22 15:17:12 -0400 | [diff] [blame] | 1764 | |
Behdad Esfahbod | 8c646f6 | 2013-07-22 15:06:23 -0400 | [diff] [blame] | 1765 | |
Behdad Esfahbod | 71f7c74 | 2013-08-13 20:16:16 -0400 | [diff] [blame] | 1766 | # TODO(behdad) OS/2 ulUnicodeRange / ulCodePageRange? |
Behdad Esfahbod | 26560d2 | 2013-10-26 22:03:35 +0200 | [diff] [blame] | 1767 | # TODO(behdad) Drop AAT tables. |
Behdad Esfahbod | 71f7c74 | 2013-08-13 20:16:16 -0400 | [diff] [blame] | 1768 | # TODO(behdad) Drop unneeded GSUB/GPOS Script/LangSys entries. |
Behdad Esfahbod | 852e8a5 | 2013-08-29 18:19:22 -0400 | [diff] [blame] | 1769 | # TODO(behdad) Drop empty GSUB/GPOS, and GDEF if no GSUB/GPOS left |
| 1770 | # TODO(behdad) Drop GDEF subitems if unused by lookups |
Behdad Esfahbod | 1019533 | 2013-08-14 19:55:24 -0400 | [diff] [blame] | 1771 | # TODO(behdad) Avoid recursing too much (in GSUB/GPOS and in CFF) |
Behdad Esfahbod | 71f7c74 | 2013-08-13 20:16:16 -0400 | [diff] [blame] | 1772 | # TODO(behdad) Text direction considerations. |
| 1773 | # TODO(behdad) Text script / language considerations. |
Behdad Esfahbod | cc8fc78 | 2013-11-26 22:53:04 -0500 | [diff] [blame] | 1774 | # TODO(behdad) Optionally drop 'kern' table if GPOS available |
Behdad Esfahbod | fa95e87 | 2013-12-15 22:02:20 -0500 | [diff] [blame] | 1775 | # TODO(behdad) Implement --unicode='*' to choose all cmap'ed |
| 1776 | # TODO(behdad) Drop old-spec Indic scripts |
| 1777 | |
Behdad Esfahbod | 8c486d8 | 2013-07-24 13:34:47 -0400 | [diff] [blame] | 1778 | |
Behdad Esfahbod | 5d4f99d | 2013-08-13 20:57:59 -0400 | [diff] [blame] | 1779 | class Options(object): |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 1780 | |
Behdad Esfahbod | 5d4f99d | 2013-08-13 20:57:59 -0400 | [diff] [blame] | 1781 | class UnknownOptionError(Exception): |
| 1782 | pass |
Behdad Esfahbod | 26d9ee7 | 2013-08-13 16:55:01 -0400 | [diff] [blame] | 1783 | |
Behdad Esfahbod | a17743f | 2013-08-28 17:14:53 -0400 | [diff] [blame] | 1784 | _drop_tables_default = ['BASE', 'JSTF', 'DSIG', 'EBDT', 'EBLC', 'EBSC', 'SVG ', |
Behdad Esfahbod | 5d4f99d | 2013-08-13 20:57:59 -0400 | [diff] [blame] | 1785 | 'PCLT', 'LTSH'] |
| 1786 | _drop_tables_default += ['Feat', 'Glat', 'Gloc', 'Silf', 'Sill'] # Graphite |
| 1787 | _drop_tables_default += ['CBLC', 'CBDT', 'sbix', 'COLR', 'CPAL'] # Color |
| 1788 | _no_subset_tables_default = ['gasp', 'head', 'hhea', 'maxp', 'vhea', 'OS/2', |
| 1789 | 'loca', 'name', 'cvt ', 'fpgm', 'prep'] |
| 1790 | _hinting_tables_default = ['cvt ', 'fpgm', 'prep', 'hdmx', 'VDMX'] |
Behdad Esfahbod | 26d9ee7 | 2013-08-13 16:55:01 -0400 | [diff] [blame] | 1791 | |
Behdad Esfahbod | 5d4f99d | 2013-08-13 20:57:59 -0400 | [diff] [blame] | 1792 | # Based on HarfBuzz shapers |
| 1793 | _layout_features_groups = { |
| 1794 | # Default shaper |
| 1795 | 'common': ['ccmp', 'liga', 'locl', 'mark', 'mkmk', 'rlig'], |
| 1796 | 'horizontal': ['calt', 'clig', 'curs', 'kern', 'rclt'], |
| 1797 | 'vertical': ['valt', 'vert', 'vkrn', 'vpal', 'vrt2'], |
| 1798 | 'ltr': ['ltra', 'ltrm'], |
| 1799 | 'rtl': ['rtla', 'rtlm'], |
| 1800 | # Complex shapers |
| 1801 | 'arabic': ['init', 'medi', 'fina', 'isol', 'med2', 'fin2', 'fin3', |
| 1802 | 'cswh', 'mset'], |
| 1803 | 'hangul': ['ljmo', 'vjmo', 'tjmo'], |
Behdad Esfahbod | 3977d3e | 2013-10-14 17:49:12 +0200 | [diff] [blame] | 1804 | 'tibetan': ['abvs', 'blws', 'abvm', 'blwm'], |
Behdad Esfahbod | 5d4f99d | 2013-08-13 20:57:59 -0400 | [diff] [blame] | 1805 | 'indic': ['nukt', 'akhn', 'rphf', 'rkrf', 'pref', 'blwf', 'half', |
| 1806 | 'abvf', 'pstf', 'cfar', 'vatu', 'cjct', 'init', 'pres', |
| 1807 | 'abvs', 'blws', 'psts', 'haln', 'dist', 'abvm', 'blwm'], |
| 1808 | } |
| 1809 | _layout_features_default = _uniq_sort(sum( |
Behdad Esfahbod | 6890d05 | 2013-11-27 06:26:35 -0500 | [diff] [blame] | 1810 | iter(_layout_features_groups.values()), [])) |
Behdad Esfahbod | 9eeeb4e | 2013-08-13 16:58:50 -0400 | [diff] [blame] | 1811 | |
Behdad Esfahbod | 5d4f99d | 2013-08-13 20:57:59 -0400 | [diff] [blame] | 1812 | drop_tables = _drop_tables_default |
| 1813 | no_subset_tables = _no_subset_tables_default |
| 1814 | hinting_tables = _hinting_tables_default |
| 1815 | layout_features = _layout_features_default |
Behdad Esfahbod | fe6bc4c | 2013-11-02 11:10:23 +0000 | [diff] [blame] | 1816 | hinting = True |
Behdad Esfahbod | 5d4f99d | 2013-08-13 20:57:59 -0400 | [diff] [blame] | 1817 | glyph_names = False |
| 1818 | legacy_cmap = False |
| 1819 | symbol_cmap = False |
| 1820 | name_IDs = [1, 2] # Family and Style |
| 1821 | name_legacy = False |
| 1822 | name_languages = [0x0409] # English |
Behdad Esfahbod | 04f3a19 | 2013-08-29 16:56:06 -0400 | [diff] [blame] | 1823 | notdef_glyph = True # gid0 for TrueType / .notdef for CFF |
Behdad Esfahbod | 2d82c32 | 2013-08-29 18:02:48 -0400 | [diff] [blame] | 1824 | notdef_outline = False # No need for notdef to have an outline really |
Behdad Esfahbod | 04f3a19 | 2013-08-29 16:56:06 -0400 | [diff] [blame] | 1825 | recommended_glyphs = False # gid1, gid2, gid3 for TrueType |
Behdad Esfahbod | e911de1 | 2013-08-16 12:42:34 -0400 | [diff] [blame] | 1826 | recalc_bounds = False # Recalculate font bounding boxes |
Behdad Esfahbod | f09164a | 2014-05-01 15:16:14 -0700 | [diff] [blame^] | 1827 | recalc_timestamp = False # Recalculate font modified timestamp |
Behdad Esfahbod | 03d78da | 2013-08-29 16:42:00 -0400 | [diff] [blame] | 1828 | canonical_order = False # Order tables as recommended |
Behdad Esfahbod | c6c3bb8 | 2013-08-15 17:46:20 -0400 | [diff] [blame] | 1829 | flavor = None # May be 'woff' |
Behdad Esfahbod | 9eeeb4e | 2013-08-13 16:58:50 -0400 | [diff] [blame] | 1830 | |
Behdad Esfahbod | 5d4f99d | 2013-08-13 20:57:59 -0400 | [diff] [blame] | 1831 | def __init__(self, **kwargs): |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 1832 | |
Behdad Esfahbod | 5d4f99d | 2013-08-13 20:57:59 -0400 | [diff] [blame] | 1833 | self.set(**kwargs) |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 1834 | |
Behdad Esfahbod | 5d4f99d | 2013-08-13 20:57:59 -0400 | [diff] [blame] | 1835 | def set(self, **kwargs): |
Behdad Esfahbod | 6890d05 | 2013-11-27 06:26:35 -0500 | [diff] [blame] | 1836 | for k,v in kwargs.items(): |
Behdad Esfahbod | 5d4f99d | 2013-08-13 20:57:59 -0400 | [diff] [blame] | 1837 | if not hasattr(self, k): |
Behdad Esfahbod | ac10d81 | 2013-09-03 18:29:58 -0400 | [diff] [blame] | 1838 | raise self.UnknownOptionError("Unknown option '%s'" % k) |
Behdad Esfahbod | 5d4f99d | 2013-08-13 20:57:59 -0400 | [diff] [blame] | 1839 | setattr(self, k, v) |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 1840 | |
Behdad Esfahbod | 5d4f99d | 2013-08-13 20:57:59 -0400 | [diff] [blame] | 1841 | def parse_opts(self, argv, ignore_unknown=False): |
| 1842 | ret = [] |
| 1843 | opts = {} |
| 1844 | for a in argv: |
| 1845 | orig_a = a |
| 1846 | if not a.startswith('--'): |
| 1847 | ret.append(a) |
| 1848 | continue |
| 1849 | a = a[2:] |
| 1850 | i = a.find('=') |
Behdad Esfahbod | 0fc5502 | 2013-08-15 19:06:48 -0400 | [diff] [blame] | 1851 | op = '=' |
Behdad Esfahbod | 5d4f99d | 2013-08-13 20:57:59 -0400 | [diff] [blame] | 1852 | if i == -1: |
| 1853 | if a.startswith("no-"): |
| 1854 | k = a[3:] |
| 1855 | v = False |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1856 | else: |
Behdad Esfahbod | 5d4f99d | 2013-08-13 20:57:59 -0400 | [diff] [blame] | 1857 | k = a |
| 1858 | v = True |
| 1859 | else: |
| 1860 | k = a[:i] |
Behdad Esfahbod | 0fc5502 | 2013-08-15 19:06:48 -0400 | [diff] [blame] | 1861 | if k[-1] in "-+": |
| 1862 | op = k[-1]+'=' # Ops is '-=' or '+=' now. |
| 1863 | k = k[:-1] |
Behdad Esfahbod | 5d4f99d | 2013-08-13 20:57:59 -0400 | [diff] [blame] | 1864 | v = a[i+1:] |
| 1865 | k = k.replace('-', '_') |
| 1866 | if not hasattr(self, k): |
Behdad Esfahbod | 9e6ef94 | 2013-12-04 16:31:44 -0500 | [diff] [blame] | 1867 | if ignore_unknown is True or k in ignore_unknown: |
Behdad Esfahbod | 5d4f99d | 2013-08-13 20:57:59 -0400 | [diff] [blame] | 1868 | ret.append(orig_a) |
| 1869 | continue |
| 1870 | else: |
| 1871 | raise self.UnknownOptionError("Unknown option '%s'" % a) |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 1872 | |
Behdad Esfahbod | 5d4f99d | 2013-08-13 20:57:59 -0400 | [diff] [blame] | 1873 | ov = getattr(self, k) |
| 1874 | if isinstance(ov, bool): |
| 1875 | v = bool(v) |
| 1876 | elif isinstance(ov, int): |
| 1877 | v = int(v) |
| 1878 | elif isinstance(ov, list): |
Behdad Esfahbod | 0fc5502 | 2013-08-15 19:06:48 -0400 | [diff] [blame] | 1879 | vv = v.split(',') |
| 1880 | if vv == ['']: |
| 1881 | vv = [] |
Behdad Esfahbod | 87c8c50 | 2013-08-16 14:44:09 -0400 | [diff] [blame] | 1882 | vv = [int(x, 0) if len(x) and x[0] in "0123456789" else x for x in vv] |
Behdad Esfahbod | 0fc5502 | 2013-08-15 19:06:48 -0400 | [diff] [blame] | 1883 | if op == '=': |
| 1884 | v = vv |
| 1885 | elif op == '+=': |
| 1886 | v = ov |
| 1887 | v.extend(vv) |
| 1888 | elif op == '-=': |
| 1889 | v = ov |
| 1890 | for x in vv: |
| 1891 | if x in v: |
| 1892 | v.remove(x) |
| 1893 | else: |
Behdad Esfahbod | 153ec40 | 2013-12-04 01:15:46 -0500 | [diff] [blame] | 1894 | assert False |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 1895 | |
Behdad Esfahbod | 5d4f99d | 2013-08-13 20:57:59 -0400 | [diff] [blame] | 1896 | opts[k] = v |
| 1897 | self.set(**opts) |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 1898 | |
Behdad Esfahbod | 5d4f99d | 2013-08-13 20:57:59 -0400 | [diff] [blame] | 1899 | return ret |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 1900 | |
| 1901 | |
Behdad Esfahbod | 5d4f99d | 2013-08-13 20:57:59 -0400 | [diff] [blame] | 1902 | class Subsetter(object): |
| 1903 | |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1904 | def __init__(self, options=None, log=None): |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 1905 | |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1906 | if not log: |
| 1907 | log = Logger() |
| 1908 | if not options: |
| 1909 | options = Options() |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 1910 | |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1911 | self.options = options |
| 1912 | self.log = log |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1913 | self.unicodes_requested = set() |
| 1914 | self.glyphs_requested = set() |
| 1915 | self.glyphs = set() |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 1916 | |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1917 | def populate(self, glyphs=[], unicodes=[], text=""): |
| 1918 | self.unicodes_requested.update(unicodes) |
Behdad Esfahbod | b21c9d3 | 2013-11-27 18:09:08 -0500 | [diff] [blame] | 1919 | if isinstance(text, bytes): |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1920 | text = text.decode("utf8") |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1921 | for u in text: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1922 | self.unicodes_requested.add(ord(u)) |
| 1923 | self.glyphs_requested.update(glyphs) |
| 1924 | self.glyphs.update(glyphs) |
Behdad Esfahbod | 3d513b7 | 2013-07-31 14:11:40 -0400 | [diff] [blame] | 1925 | |
Behdad Esfahbod | b7f460b | 2013-08-13 20:48:33 -0400 | [diff] [blame] | 1926 | def _prune_pre_subset(self, font): |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 1927 | |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1928 | for tag in font.keys(): |
| 1929 | if tag == 'GlyphOrder': continue |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 1930 | |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1931 | if(tag in self.options.drop_tables or |
| 1932 | (tag in self.options.hinting_tables and not self.options.hinting)): |
| 1933 | self.log(tag, "dropped") |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1934 | del font[tag] |
| 1935 | continue |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 1936 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 1937 | clazz = ttLib.getTableClass(tag) |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 1938 | |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1939 | if hasattr(clazz, 'prune_pre_subset'): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1940 | table = font[tag] |
Behdad Esfahbod | 010c5f9 | 2013-09-10 20:54:46 -0400 | [diff] [blame] | 1941 | self.log.lapse("load '%s'" % tag) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1942 | retain = table.prune_pre_subset(self.options) |
| 1943 | self.log.lapse("prune '%s'" % tag) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1944 | if not retain: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1945 | self.log(tag, "pruned to empty; dropped") |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1946 | del font[tag] |
| 1947 | continue |
| 1948 | else: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1949 | self.log(tag, "pruned") |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 1950 | |
Behdad Esfahbod | b7f460b | 2013-08-13 20:48:33 -0400 | [diff] [blame] | 1951 | def _closure_glyphs(self, font): |
Behdad Esfahbod | 2fb90e2 | 2013-07-31 20:04:08 -0400 | [diff] [blame] | 1952 | |
Behdad Esfahbod | 05a2862 | 2013-12-04 23:05:59 -0500 | [diff] [blame] | 1953 | realGlyphs = set(font.getGlyphOrder()) |
| 1954 | |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1955 | self.glyphs = self.glyphs_requested.copy() |
Behdad Esfahbod | 98259f2 | 2013-07-31 20:16:24 -0400 | [diff] [blame] | 1956 | |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1957 | if 'cmap' in font: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1958 | font['cmap'].closure_glyphs(self) |
Behdad Esfahbod | 05a2862 | 2013-12-04 23:05:59 -0500 | [diff] [blame] | 1959 | self.glyphs.intersection_update(realGlyphs) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1960 | self.glyphs_cmaped = self.glyphs |
Behdad Esfahbod | 2fb90e2 | 2013-07-31 20:04:08 -0400 | [diff] [blame] | 1961 | |
Behdad Esfahbod | 04f3a19 | 2013-08-29 16:56:06 -0400 | [diff] [blame] | 1962 | if self.options.notdef_glyph: |
| 1963 | if 'glyf' in font: |
| 1964 | self.glyphs.add(font.getGlyphName(0)) |
| 1965 | self.log("Added gid0 to subset") |
| 1966 | else: |
| 1967 | self.glyphs.add('.notdef') |
| 1968 | self.log("Added .notdef to subset") |
| 1969 | if self.options.recommended_glyphs: |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1970 | if 'glyf' in font: |
Behdad Esfahbod | 10a3fff | 2013-12-08 15:22:32 -0500 | [diff] [blame] | 1971 | for i in range(min(4, len(font.getGlyphOrder()))): |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1972 | self.glyphs.add(font.getGlyphName(i)) |
| 1973 | self.log("Added first four glyphs to subset") |
Behdad Esfahbod | 2fb90e2 | 2013-07-31 20:04:08 -0400 | [diff] [blame] | 1974 | |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1975 | if 'GSUB' in font: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1976 | self.log("Closing glyph list over 'GSUB': %d glyphs before" % |
| 1977 | len(self.glyphs)) |
| 1978 | self.log.glyphs(self.glyphs, font=font) |
| 1979 | font['GSUB'].closure_glyphs(self) |
Behdad Esfahbod | 05a2862 | 2013-12-04 23:05:59 -0500 | [diff] [blame] | 1980 | self.glyphs.intersection_update(realGlyphs) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1981 | self.log("Closed glyph list over 'GSUB': %d glyphs after" % |
| 1982 | len(self.glyphs)) |
| 1983 | self.log.glyphs(self.glyphs, font=font) |
| 1984 | self.log.lapse("close glyph list over 'GSUB'") |
| 1985 | self.glyphs_gsubed = self.glyphs.copy() |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 1986 | |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 1987 | if 'glyf' in font: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1988 | self.log("Closing glyph list over 'glyf': %d glyphs before" % |
| 1989 | len(self.glyphs)) |
| 1990 | self.log.glyphs(self.glyphs, font=font) |
| 1991 | font['glyf'].closure_glyphs(self) |
Behdad Esfahbod | 05a2862 | 2013-12-04 23:05:59 -0500 | [diff] [blame] | 1992 | self.glyphs.intersection_update(realGlyphs) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1993 | self.log("Closed glyph list over 'glyf': %d glyphs after" % |
| 1994 | len(self.glyphs)) |
| 1995 | self.log.glyphs(self.glyphs, font=font) |
| 1996 | self.log.lapse("close glyph list over 'glyf'") |
| 1997 | self.glyphs_glyfed = self.glyphs.copy() |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 1998 | |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 1999 | self.glyphs_all = self.glyphs.copy() |
Behdad Esfahbod | 8c8ff45 | 2013-07-31 19:47:37 -0400 | [diff] [blame] | 2000 | |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 2001 | self.log("Retaining %d glyphs: " % len(self.glyphs_all)) |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 2002 | |
Behdad Esfahbod | ebcad97 | 2013-12-04 23:00:52 -0500 | [diff] [blame] | 2003 | del self.glyphs |
| 2004 | |
| 2005 | |
Behdad Esfahbod | b7f460b | 2013-08-13 20:48:33 -0400 | [diff] [blame] | 2006 | def _subset_glyphs(self, font): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 2007 | for tag in font.keys(): |
| 2008 | if tag == 'GlyphOrder': continue |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 2009 | clazz = ttLib.getTableClass(tag) |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 2010 | |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 2011 | if tag in self.options.no_subset_tables: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 2012 | self.log(tag, "subsetting not needed") |
| 2013 | elif hasattr(clazz, 'subset_glyphs'): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 2014 | table = font[tag] |
| 2015 | self.glyphs = self.glyphs_all |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 2016 | retain = table.subset_glyphs(self) |
Behdad Esfahbod | ebcad97 | 2013-12-04 23:00:52 -0500 | [diff] [blame] | 2017 | del self.glyphs |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 2018 | self.log.lapse("subset '%s'" % tag) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 2019 | if not retain: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 2020 | self.log(tag, "subsetted to empty; dropped") |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 2021 | del font[tag] |
| 2022 | else: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 2023 | self.log(tag, "subsetted") |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 2024 | else: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 2025 | self.log(tag, "NOT subset; don't know how to subset; dropped") |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 2026 | del font[tag] |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 2027 | |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 2028 | glyphOrder = font.getGlyphOrder() |
| 2029 | glyphOrder = [g for g in glyphOrder if g in self.glyphs_all] |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 2030 | font.setGlyphOrder(glyphOrder) |
| 2031 | font._buildReverseGlyphOrderDict() |
| 2032 | self.log.lapse("subset GlyphOrder") |
Behdad Esfahbod | 2fb90e2 | 2013-07-31 20:04:08 -0400 | [diff] [blame] | 2033 | |
Behdad Esfahbod | b7f460b | 2013-08-13 20:48:33 -0400 | [diff] [blame] | 2034 | def _prune_post_subset(self, font): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 2035 | for tag in font.keys(): |
| 2036 | if tag == 'GlyphOrder': continue |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 2037 | clazz = ttLib.getTableClass(tag) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 2038 | if hasattr(clazz, 'prune_post_subset'): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 2039 | table = font[tag] |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 2040 | retain = table.prune_post_subset(self.options) |
| 2041 | self.log.lapse("prune '%s'" % tag) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 2042 | if not retain: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 2043 | self.log(tag, "pruned to empty; dropped") |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 2044 | del font[tag] |
| 2045 | else: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 2046 | self.log(tag, "pruned") |
Behdad Esfahbod | 063a2db | 2013-07-31 15:22:02 -0400 | [diff] [blame] | 2047 | |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 2048 | def subset(self, font): |
Behdad Esfahbod | 756af49 | 2013-08-01 12:05:26 -0400 | [diff] [blame] | 2049 | |
Behdad Esfahbod | b7f460b | 2013-08-13 20:48:33 -0400 | [diff] [blame] | 2050 | self._prune_pre_subset(font) |
| 2051 | self._closure_glyphs(font) |
| 2052 | self._subset_glyphs(font) |
| 2053 | self._prune_post_subset(font) |
Behdad Esfahbod | 98259f2 | 2013-07-31 20:16:24 -0400 | [diff] [blame] | 2054 | |
Behdad Esfahbod | 756af49 | 2013-08-01 12:05:26 -0400 | [diff] [blame] | 2055 | |
Behdad Esfahbod | 3d4c471 | 2013-08-13 20:10:17 -0400 | [diff] [blame] | 2056 | class Logger(object): |
Behdad Esfahbod | df3d757 | 2013-07-31 15:03:43 -0400 | [diff] [blame] | 2057 | |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 2058 | def __init__(self, verbose=False, xml=False, timing=False): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 2059 | self.verbose = verbose |
| 2060 | self.xml = xml |
| 2061 | self.timing = timing |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 2062 | self.last_time = self.start_time = time.time() |
Behdad Esfahbod | df3d757 | 2013-07-31 15:03:43 -0400 | [diff] [blame] | 2063 | |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 2064 | def parse_opts(self, argv): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 2065 | argv = argv[:] |
| 2066 | for v in ['verbose', 'xml', 'timing']: |
| 2067 | if "--"+v in argv: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 2068 | setattr(self, v, True) |
| 2069 | argv.remove("--"+v) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 2070 | return argv |
Behdad Esfahbod | df3d757 | 2013-07-31 15:03:43 -0400 | [diff] [blame] | 2071 | |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 2072 | def __call__(self, *things): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 2073 | if not self.verbose: |
| 2074 | return |
Behdad Esfahbod | 4cd467c | 2013-11-27 04:57:06 -0500 | [diff] [blame] | 2075 | print(' '.join(str(x) for x in things)) |
Behdad Esfahbod | df3d757 | 2013-07-31 15:03:43 -0400 | [diff] [blame] | 2076 | |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 2077 | def lapse(self, *things): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 2078 | if not self.timing: |
| 2079 | return |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 2080 | new_time = time.time() |
Behdad Esfahbod | 4cd467c | 2013-11-27 04:57:06 -0500 | [diff] [blame] | 2081 | print("Took %0.3fs to %s" %(new_time - self.last_time, |
| 2082 | ' '.join(str(x) for x in things))) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 2083 | self.last_time = new_time |
Behdad Esfahbod | df3d757 | 2013-07-31 15:03:43 -0400 | [diff] [blame] | 2084 | |
Behdad Esfahbod | 80c8a65 | 2013-08-14 12:55:42 -0400 | [diff] [blame] | 2085 | def glyphs(self, glyphs, font=None): |
Behdad Esfahbod | 57fb726 | 2013-12-04 21:56:53 -0500 | [diff] [blame] | 2086 | if not self.verbose: |
| 2087 | return |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 2088 | self("Names: ", sorted(glyphs)) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 2089 | if font: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 2090 | reverseGlyphMap = font.getReverseGlyphMap() |
| 2091 | self("Gids : ", sorted(reverseGlyphMap[g] for g in glyphs)) |
Behdad Esfahbod | f549784 | 2013-08-08 21:57:02 -0400 | [diff] [blame] | 2092 | |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 2093 | def font(self, font, file=sys.stdout): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 2094 | if not self.xml: |
| 2095 | return |
Behdad Esfahbod | 28fc498 | 2013-09-18 19:01:16 -0400 | [diff] [blame] | 2096 | from fontTools.misc import xmlWriter |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 2097 | writer = xmlWriter.XMLWriter(file) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 2098 | for tag in font.keys(): |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 2099 | writer.begintag(tag) |
| 2100 | writer.newline() |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 2101 | font[tag].toXML(writer, font) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 2102 | writer.endtag(tag) |
| 2103 | writer.newline() |
Behdad Esfahbod | df3d757 | 2013-07-31 15:03:43 -0400 | [diff] [blame] | 2104 | |
Behdad Esfahbod | f6b668e | 2013-08-13 12:20:59 -0400 | [diff] [blame] | 2105 | |
Behdad Esfahbod | 85da268 | 2013-08-15 12:17:21 -0400 | [diff] [blame] | 2106 | def load_font(fontFile, |
Behdad Esfahbod | adc47fd | 2013-08-15 18:29:25 -0400 | [diff] [blame] | 2107 | options, |
Behdad Esfahbod | 6bd4324 | 2013-12-04 21:34:05 -0500 | [diff] [blame] | 2108 | allowVID=False, |
Behdad Esfahbod | 85da268 | 2013-08-15 12:17:21 -0400 | [diff] [blame] | 2109 | checkChecksums=False, |
Behdad Esfahbod | 283fb26 | 2013-12-16 00:50:48 -0500 | [diff] [blame] | 2110 | dontLoadGlyphNames=False, |
| 2111 | lazy=True): |
Behdad Esfahbod | f6b668e | 2013-08-13 12:20:59 -0400 | [diff] [blame] | 2112 | |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 2113 | font = ttLib.TTFont(fontFile, |
Behdad Esfahbod | 6bd4324 | 2013-12-04 21:34:05 -0500 | [diff] [blame] | 2114 | allowVID=allowVID, |
| 2115 | checkChecksums=checkChecksums, |
Behdad Esfahbod | 283fb26 | 2013-12-16 00:50:48 -0500 | [diff] [blame] | 2116 | recalcBBoxes=options.recalc_bounds, |
Behdad Esfahbod | f09164a | 2014-05-01 15:16:14 -0700 | [diff] [blame^] | 2117 | recalcTimestamp=options.recalc_timestamp, |
Behdad Esfahbod | 283fb26 | 2013-12-16 00:50:48 -0500 | [diff] [blame] | 2118 | lazy=lazy) |
Behdad Esfahbod | f6b668e | 2013-08-13 12:20:59 -0400 | [diff] [blame] | 2119 | |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 2120 | # Hack: |
| 2121 | # |
| 2122 | # If we don't need glyph names, change 'post' class to not try to |
| 2123 | # load them. It avoid lots of headache with broken fonts as well |
| 2124 | # as loading time. |
| 2125 | # |
| 2126 | # Ideally ttLib should provide a way to ask it to skip loading |
| 2127 | # glyph names. But it currently doesn't provide such a thing. |
| 2128 | # |
Behdad Esfahbod | 85da268 | 2013-08-15 12:17:21 -0400 | [diff] [blame] | 2129 | if dontLoadGlyphNames: |
Behdad Esfahbod | 46d260f | 2013-09-19 20:36:49 -0400 | [diff] [blame] | 2130 | post = ttLib.getTableClass('post') |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 2131 | saved = post.decode_format_2_0 |
| 2132 | post.decode_format_2_0 = post.decode_format_3_0 |
| 2133 | f = font['post'] |
| 2134 | if f.formatType == 2.0: |
| 2135 | f.formatType = 3.0 |
| 2136 | post.decode_format_2_0 = saved |
Behdad Esfahbod | f6b668e | 2013-08-13 12:20:59 -0400 | [diff] [blame] | 2137 | |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 2138 | return font |
Behdad Esfahbod | f6b668e | 2013-08-13 12:20:59 -0400 | [diff] [blame] | 2139 | |
Behdad Esfahbod | e911de1 | 2013-08-16 12:42:34 -0400 | [diff] [blame] | 2140 | def save_font(font, outfile, options): |
Behdad Esfahbod | c6c3bb8 | 2013-08-15 17:46:20 -0400 | [diff] [blame] | 2141 | if options.flavor and not hasattr(font, 'flavor'): |
| 2142 | raise Exception("fonttools version does not support flavors.") |
| 2143 | font.flavor = options.flavor |
Behdad Esfahbod | e911de1 | 2013-08-16 12:42:34 -0400 | [diff] [blame] | 2144 | font.save(outfile, reorderTables=options.canonical_order) |
Behdad Esfahbod | 41de4cc | 2013-08-15 12:09:55 -0400 | [diff] [blame] | 2145 | |
Behdad Esfahbod | b69400f | 2013-08-29 18:40:53 -0400 | [diff] [blame] | 2146 | def main(args): |
Behdad Esfahbod | 610b055 | 2013-07-23 14:52:18 -0400 | [diff] [blame] | 2147 | |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 2148 | log = Logger() |
| 2149 | args = log.parse_opts(args) |
Behdad Esfahbod | 4ae8171 | 2013-07-22 11:57:13 -0400 | [diff] [blame] | 2150 | |
Behdad Esfahbod | 80c8a65 | 2013-08-14 12:55:42 -0400 | [diff] [blame] | 2151 | options = Options() |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 2152 | args = options.parse_opts(args, ignore_unknown=['text']) |
Behdad Esfahbod | 97e17b8 | 2013-07-31 15:59:21 -0400 | [diff] [blame] | 2153 | |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 2154 | if len(args) < 2: |
Behdad Esfahbod | cfeafd7 | 2013-11-27 17:27:35 -0500 | [diff] [blame] | 2155 | print("usage: pyftsubset font-file glyph... [--text=ABC]... [--option=value]...", file=sys.stderr) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 2156 | sys.exit(1) |
Behdad Esfahbod | 02b9206 | 2013-07-21 18:40:59 -0400 | [diff] [blame] | 2157 | |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 2158 | fontfile = args[0] |
| 2159 | args = args[1:] |
Behdad Esfahbod | 02b9206 | 2013-07-21 18:40:59 -0400 | [diff] [blame] | 2160 | |
Behdad Esfahbod | 85da268 | 2013-08-15 12:17:21 -0400 | [diff] [blame] | 2161 | dontLoadGlyphNames =(not options.glyph_names and |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 2162 | all(any(g.startswith(p) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 2163 | for p in ['gid', 'glyph', 'uni', 'U+']) |
| 2164 | for g in args)) |
Behdad Esfahbod | f6b668e | 2013-08-13 12:20:59 -0400 | [diff] [blame] | 2165 | |
Behdad Esfahbod | adc47fd | 2013-08-15 18:29:25 -0400 | [diff] [blame] | 2166 | font = load_font(fontfile, options, dontLoadGlyphNames=dontLoadGlyphNames) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 2167 | log.lapse("load font") |
Behdad Esfahbod | b640f74 | 2013-09-19 20:12:56 -0400 | [diff] [blame] | 2168 | subsetter = Subsetter(options=options, log=log) |
Behdad Esfahbod | 02b9206 | 2013-07-21 18:40:59 -0400 | [diff] [blame] | 2169 | |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 2170 | names = font.getGlyphNames() |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 2171 | log.lapse("loading glyph names") |
Behdad Esfahbod | e7f5a89 | 2013-07-31 19:58:59 -0400 | [diff] [blame] | 2172 | |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 2173 | glyphs = [] |
| 2174 | unicodes = [] |
| 2175 | text = "" |
| 2176 | for g in args: |
Behdad Esfahbod | 2be33d9 | 2013-09-10 19:28:59 -0400 | [diff] [blame] | 2177 | if g == '*': |
| 2178 | glyphs.extend(font.getGlyphOrder()) |
| 2179 | continue |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 2180 | if g in names: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 2181 | glyphs.append(g) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 2182 | continue |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 2183 | if g.startswith('--text='): |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 2184 | text += g[7:] |
| 2185 | continue |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 2186 | if g.startswith('uni') or g.startswith('U+'): |
| 2187 | if g.startswith('uni') and len(g) > 3: |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 2188 | g = g[3:] |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 2189 | elif g.startswith('U+') and len(g) > 2: |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 2190 | g = g[2:] |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 2191 | u = int(g, 16) |
| 2192 | unicodes.append(u) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 2193 | continue |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 2194 | if g.startswith('gid') or g.startswith('glyph'): |
| 2195 | if g.startswith('gid') and len(g) > 3: |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 2196 | g = g[3:] |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 2197 | elif g.startswith('glyph') and len(g) > 5: |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 2198 | g = g[5:] |
| 2199 | try: |
Behdad Esfahbod | dc87372 | 2013-12-04 21:28:50 -0500 | [diff] [blame] | 2200 | glyphs.append(font.getGlyphName(int(g), requireReal=True)) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 2201 | except ValueError: |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 2202 | raise Exception("Invalid glyph identifier: %s" % g) |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 2203 | continue |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 2204 | raise Exception("Invalid glyph identifier: %s" % g) |
| 2205 | log.lapse("compile glyph list") |
| 2206 | log("Unicodes:", unicodes) |
| 2207 | log("Glyphs:", glyphs) |
Behdad Esfahbod | 6df089a | 2013-07-31 19:27:14 -0400 | [diff] [blame] | 2208 | |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 2209 | subsetter.populate(glyphs=glyphs, unicodes=unicodes, text=text) |
| 2210 | subsetter.subset(font) |
Behdad Esfahbod | d1d41bc | 2013-07-21 23:15:32 -0400 | [diff] [blame] | 2211 | |
Behdad Esfahbod | 34426c1 | 2013-08-14 18:30:09 -0400 | [diff] [blame] | 2212 | outfile = fontfile + '.subset' |
| 2213 | |
Behdad Esfahbod | c6c3bb8 | 2013-08-15 17:46:20 -0400 | [diff] [blame] | 2214 | save_font (font, outfile, options) |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 2215 | log.lapse("compile and save font") |
Behdad Esfahbod | de71dca | 2013-07-24 12:40:54 -0400 | [diff] [blame] | 2216 | |
Behdad Esfahbod | 9e856ea | 2013-08-13 19:50:38 -0400 | [diff] [blame] | 2217 | log.last_time = log.start_time |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 2218 | log.lapse("make one with everything(TOTAL TIME)") |
Behdad Esfahbod | de71dca | 2013-07-24 12:40:54 -0400 | [diff] [blame] | 2219 | |
Behdad Esfahbod | 34426c1 | 2013-08-14 18:30:09 -0400 | [diff] [blame] | 2220 | if log.verbose: |
| 2221 | import os |
| 2222 | log("Input font: %d bytes" % os.path.getsize(fontfile)) |
| 2223 | log("Subset font: %d bytes" % os.path.getsize(outfile)) |
| 2224 | |
Behdad Esfahbod | 77a2b28 | 2013-08-13 19:53:30 -0400 | [diff] [blame] | 2225 | log.font(font) |
Behdad Esfahbod | 8c486d8 | 2013-07-24 13:34:47 -0400 | [diff] [blame] | 2226 | |
Behdad Esfahbod | c56bf48 | 2013-08-13 20:13:33 -0400 | [diff] [blame] | 2227 | font.close() |
| 2228 | |
Behdad Esfahbod | 39a39ac | 2013-08-22 18:10:17 -0400 | [diff] [blame] | 2229 | |
| 2230 | __all__ = [ |
Behdad Esfahbod | b69400f | 2013-08-29 18:40:53 -0400 | [diff] [blame] | 2231 | 'Options', |
| 2232 | 'Subsetter', |
| 2233 | 'Logger', |
| 2234 | 'load_font', |
| 2235 | 'save_font', |
| 2236 | 'main' |
Behdad Esfahbod | 39a39ac | 2013-08-22 18:10:17 -0400 | [diff] [blame] | 2237 | ] |
| 2238 | |
Behdad Esfahbod | 8c486d8 | 2013-07-24 13:34:47 -0400 | [diff] [blame] | 2239 | if __name__ == '__main__': |
Behdad Esfahbod | b69400f | 2013-08-29 18:40:53 -0400 | [diff] [blame] | 2240 | main(sys.argv[1:]) |