| # coding: utf-8 |
| from __future__ import print_function, division, absolute_import, unicode_literals |
| from fontTools.misc.py23 import * |
| from fontTools.misc.testTools import FakeFont, getXML, parseXML |
| from fontTools.misc.textTools import deHexStr, hexStr |
| from fontTools.ttLib import newTable |
| import unittest |
| |
| |
| # A simple 'morx' table with non-contextual glyph substitution. |
| # Unfortunately, the Apple spec for 'morx' does not contain a complete example. |
| # The test case has therefore been adapted from the example 'mort' table in |
| # https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6mort.html |
| MORX_NONCONTEXTUAL_DATA = deHexStr( |
| '0002 0000 ' # 0: Version=2, Reserved=0 |
| '0000 0001 ' # 4: MorphChainCount=1 |
| '0000 0001 ' # 8: DefaultFlags=1 |
| '0000 0058 ' # 12: StructLength=88 |
| '0000 0003 ' # 16: MorphFeatureCount=3 |
| '0000 0001 ' # 20: MorphSubtableCount=1 |
| '0004 0000 ' # 24: Feature[0].FeatureType=4/VertSubst, .FeatureSetting=on |
| '0000 0001 ' # 28: Feature[0].EnableFlags=0x00000001 |
| 'FFFF FFFF ' # 32: Feature[0].DisableFlags=0xFFFFFFFF |
| '0004 0001 ' # 36: Feature[1].FeatureType=4/VertSubst, .FeatureSetting=off |
| '0000 0000 ' # 40: Feature[1].EnableFlags=0x00000000 |
| 'FFFF FFFE ' # 44: Feature[1].DisableFlags=0xFFFFFFFE |
| '0000 0001 ' # 48: Feature[2].FeatureType=0/GlyphEffects, .FeatSetting=off |
| '0000 0000 ' # 52: Feature[2].EnableFlags=0 (required for last feature) |
| '0000 0000 ' # 56: Feature[2].EnableFlags=0 (required for last feature) |
| '0000 0024 ' # 60: Subtable[0].StructLength=36 |
| '80 ' # 64: Subtable[0].CoverageFlags=0x80 |
| '00 00 ' # 65: Subtable[0].Reserved=0 |
| '04 ' # 67: Subtable[0].MorphType=4/NoncontextualMorph |
| '0000 0001 ' # 68: Subtable[0].SubFeatureFlags=0x1 |
| '0006 0004 ' # 72: LookupFormat=6, UnitSize=4 |
| '0002 0008 ' # 76: NUnits=2, SearchRange=8 |
| '0001 0000 ' # 80: EntrySelector=1, RangeShift=0 |
| '000B 0087 ' # 84: Glyph=11 (parenleft); Value=135 (parenleft.vertical) |
| '000D 0088 ' # 88: Glyph=13 (parenright); Value=136 (parenright.vertical) |
| 'FFFF 0000 ' # 92: Glyph=<end>; Value=0 |
| ) # 96: <end> |
| assert len(MORX_NONCONTEXTUAL_DATA) == 96 |
| |
| |
| MORX_NONCONTEXTUAL_XML = [ |
| '<Version value="2"/>', |
| '<Reserved value="0"/>', |
| '<!-- MorphChainCount=1 -->', |
| '<MorphChain index="0">', |
| ' <DefaultFlags value="0x00000001"/>', |
| ' <!-- StructLength=88 -->', |
| ' <!-- MorphFeatureCount=3 -->', |
| ' <!-- MorphSubtableCount=1 -->', |
| ' <MorphFeature index="0">', |
| ' <FeatureType value="4"/>', |
| ' <FeatureSetting value="0"/>', |
| ' <EnableFlags value="0x00000001"/>', |
| ' <DisableFlags value="0xFFFFFFFF"/>', |
| ' </MorphFeature>', |
| ' <MorphFeature index="1">', |
| ' <FeatureType value="4"/>', |
| ' <FeatureSetting value="1"/>', |
| ' <EnableFlags value="0x00000000"/>', |
| ' <DisableFlags value="0xFFFFFFFE"/>', |
| ' </MorphFeature>', |
| ' <MorphFeature index="2">', |
| ' <FeatureType value="0"/>', |
| ' <FeatureSetting value="1"/>', |
| ' <EnableFlags value="0x00000000"/>', |
| ' <DisableFlags value="0x00000000"/>', |
| ' </MorphFeature>', |
| ' <MorphSubtable index="0">', |
| ' <!-- StructLength=36 -->', |
| ' <TextDirection value="Vertical"/>', |
| ' <ProcessingOrder value="LayoutOrder"/>', |
| ' <!-- MorphType=4 -->', |
| ' <SubFeatureFlags value="0x00000001"/>', |
| ' <NoncontextualMorph>', |
| ' <Substitution>', |
| ' <Lookup glyph="parenleft" value="parenleft.vertical"/>', |
| ' <Lookup glyph="parenright" value="parenright.vertical"/>', |
| ' </Substitution>', |
| ' </NoncontextualMorph>', |
| ' </MorphSubtable>', |
| '</MorphChain>', |
| ] |
| |
| |
| MORX_REARRANGEMENT_DATA = deHexStr( |
| '0002 0000 ' # 0: Version=2, Reserved=0 |
| '0000 0001 ' # 4: MorphChainCount=1 |
| '0000 0001 ' # 8: DefaultFlags=1 |
| '0000 0078 ' # 12: StructLength=120 (+8=128) |
| '0000 0000 ' # 16: MorphFeatureCount=0 |
| '0000 0001 ' # 20: MorphSubtableCount=1 |
| '0000 0068 ' # 24: Subtable[0].StructLength=104 (+24=128) |
| '80 ' # 28: Subtable[0].CoverageFlags=0x80 |
| '00 00 ' # 29: Subtable[0].Reserved=0 |
| '00 ' # 31: Subtable[0].MorphType=0/RearrangementMorph |
| '0000 0001 ' # 32: Subtable[0].SubFeatureFlags=0x1 |
| '0000 0006 ' # 36: STXHeader.ClassCount=6 |
| '0000 0010 ' # 40: STXHeader.ClassTableOffset=16 (+36=52) |
| '0000 0028 ' # 44: STXHeader.StateArrayOffset=40 (+36=76) |
| '0000 004C ' # 48: STXHeader.EntryTableOffset=76 (+36=112) |
| '0006 0004 ' # 52: ClassTable.LookupFormat=6, .UnitSize=4 |
| '0002 0008 ' # 56: .NUnits=2, .SearchRange=8 |
| '0001 0000 ' # 60: .EntrySelector=1, .RangeShift=0 |
| '0001 0005 ' # 64: Glyph=A; Class=5 |
| '0003 0004 ' # 68: Glyph=C; Class=4 |
| 'FFFF 0000 ' # 72: Glyph=<end>; Value=0 |
| '0000 0001 0002 0003 0002 0001 ' # 76: State[0][0..5] |
| '0003 0003 0003 0003 0003 0003 ' # 88: State[1][0..5] |
| '0001 0003 0003 0003 0002 0002 ' # 100: State[2][0..5] |
| '0002 FFFF ' # 112: Entries[0].NewState=2, .Flags=0xFFFF |
| '0001 A00D ' # 116: Entries[1].NewState=1, .Flags=0xA00D |
| '0000 8006 ' # 120: Entries[2].NewState=0, .Flags=0x8006 |
| '0002 0000 ' # 124: Entries[3].NewState=2, .Flags=0x0000 |
| ) # 128: <end> |
| assert len(MORX_REARRANGEMENT_DATA) == 128, len(MORX_REARRANGEMENT_DATA) |
| |
| |
| MORX_REARRANGEMENT_XML = [ |
| '<Version value="2"/>', |
| '<Reserved value="0"/>', |
| '<!-- MorphChainCount=1 -->', |
| '<MorphChain index="0">', |
| ' <DefaultFlags value="0x00000001"/>', |
| ' <!-- StructLength=120 -->', |
| ' <!-- MorphFeatureCount=0 -->', |
| ' <!-- MorphSubtableCount=1 -->', |
| ' <MorphSubtable index="0">', |
| ' <!-- StructLength=104 -->', |
| ' <TextDirection value="Vertical"/>', |
| ' <ProcessingOrder value="LayoutOrder"/>', |
| ' <!-- MorphType=0 -->', |
| ' <SubFeatureFlags value="0x00000001"/>', |
| ' <RearrangementMorph>', |
| ' <StateTable>', |
| ' <!-- GlyphClassCount=6 -->', |
| ' <GlyphClass glyph="A" value="5"/>', |
| ' <GlyphClass glyph="C" value="4"/>', |
| ' <State index="0">', |
| ' <Transition onGlyphClass="0">', |
| ' <NewState value="2"/>', |
| ' <Flags value="MarkFirst,DontAdvance,MarkLast"/>', |
| ' <ReservedFlags value="0x1FF0"/>', |
| ' <Verb value="15"/><!-- ABxCD ⇒ DCxBA -->', |
| ' </Transition>', |
| ' <Transition onGlyphClass="1">', |
| ' <NewState value="1"/>', |
| ' <Flags value="MarkFirst,MarkLast"/>', |
| ' <Verb value="13"/><!-- ABxCD ⇒ CDxBA -->', |
| ' </Transition>', |
| ' <Transition onGlyphClass="2">', |
| ' <NewState value="0"/>', |
| ' <Flags value="MarkFirst"/>', |
| ' <Verb value="6"/><!-- xCD ⇒ CDx -->', |
| ' </Transition>', |
| ' <Transition onGlyphClass="3">', |
| ' <NewState value="2"/>', |
| ' <Verb value="0"/><!-- no change -->', |
| ' </Transition>', |
| ' <Transition onGlyphClass="4">', |
| ' <NewState value="0"/>', |
| ' <Flags value="MarkFirst"/>', |
| ' <Verb value="6"/><!-- xCD ⇒ CDx -->', |
| ' </Transition>', |
| ' <Transition onGlyphClass="5">', |
| ' <NewState value="1"/>', |
| ' <Flags value="MarkFirst,MarkLast"/>', |
| ' <Verb value="13"/><!-- ABxCD ⇒ CDxBA -->', |
| ' </Transition>', |
| ' </State>', |
| ' <State index="1">', |
| ' <Transition onGlyphClass="0">', |
| ' <NewState value="2"/>', |
| ' <Verb value="0"/><!-- no change -->', |
| ' </Transition>', |
| ' <Transition onGlyphClass="1">', |
| ' <NewState value="2"/>', |
| ' <Verb value="0"/><!-- no change -->', |
| ' </Transition>', |
| ' <Transition onGlyphClass="2">', |
| ' <NewState value="2"/>', |
| ' <Verb value="0"/><!-- no change -->', |
| ' </Transition>', |
| ' <Transition onGlyphClass="3">', |
| ' <NewState value="2"/>', |
| ' <Verb value="0"/><!-- no change -->', |
| ' </Transition>', |
| ' <Transition onGlyphClass="4">', |
| ' <NewState value="2"/>', |
| ' <Verb value="0"/><!-- no change -->', |
| ' </Transition>', |
| ' <Transition onGlyphClass="5">', |
| ' <NewState value="2"/>', |
| ' <Verb value="0"/><!-- no change -->', |
| ' </Transition>', |
| ' </State>', |
| ' <State index="2">', |
| ' <Transition onGlyphClass="0">', |
| ' <NewState value="1"/>', |
| ' <Flags value="MarkFirst,MarkLast"/>', |
| ' <Verb value="13"/><!-- ABxCD ⇒ CDxBA -->', |
| ' </Transition>', |
| ' <Transition onGlyphClass="1">', |
| ' <NewState value="2"/>', |
| ' <Verb value="0"/><!-- no change -->', |
| ' </Transition>', |
| ' <Transition onGlyphClass="2">', |
| ' <NewState value="2"/>', |
| ' <Verb value="0"/><!-- no change -->', |
| ' </Transition>', |
| ' <Transition onGlyphClass="3">', |
| ' <NewState value="2"/>', |
| ' <Verb value="0"/><!-- no change -->', |
| ' </Transition>', |
| ' <Transition onGlyphClass="4">', |
| ' <NewState value="0"/>', |
| ' <Flags value="MarkFirst"/>', |
| ' <Verb value="6"/><!-- xCD ⇒ CDx -->', |
| ' </Transition>', |
| ' <Transition onGlyphClass="5">', |
| ' <NewState value="0"/>', |
| ' <Flags value="MarkFirst"/>', |
| ' <Verb value="6"/><!-- xCD ⇒ CDx -->', |
| ' </Transition>', |
| ' </State>', |
| ' </StateTable>', |
| ' </RearrangementMorph>', |
| ' </MorphSubtable>', |
| '</MorphChain>', |
| ] |
| |
| |
| # Taken from “Example 1: A contextal substituation table” in |
| # https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6morx.html |
| # as retrieved on 2017-09-05. |
| # |
| # Compared to the example table in Apple’s specification, we’ve |
| # made the following changes: |
| # |
| # * at offsets 0..35, we’ve prepended 36 bytes of boilerplate |
| # to make the data a structurally valid ‘morx’ table; |
| # |
| # * at offset 36 (offset 0 in Apple’s document), we’ve changed |
| # the number of glyph classes from 5 to 6 because the encoded |
| # finite-state machine has transitions for six different glyph |
| # classes (0..5); |
| # |
| # * at offset 52 (offset 16 in Apple’s document), we’ve replaced |
| # the presumably leftover ‘XXX’ mark by an actual data offset; |
| # |
| # * at offset 72 (offset 36 in Apple’s document), we’ve changed |
| # the input GlyphID from 51 to 52. With the original value of 51, |
| # the glyph class lookup table can be encoded with equally many |
| # bytes in either format 2 or 6; after changing the GlyphID to 52, |
| # the most compact encoding is lookup format 6, as used in Apple’s |
| # example; |
| # |
| # * at offset 90 (offset 54 in Apple’s document), we’ve changed |
| # the value for the lookup end-of-table marker from 1 to 0. |
| # Fonttools always uses zero for this value, whereas Apple’s |
| # spec examples are inconsistently using one of {0, 1, 0xFFFF} |
| # for this filler value; |
| # |
| # * at offset 172 (offset 136 in Apple’s document), we’ve again changed |
| # the input GlyphID from 51 to 52, for the same reason as above. |
| # |
| # TODO: Ask Apple to fix “Example 1” in the ‘morx’ specification. |
| MORX_CONTEXTUAL_DATA = deHexStr( |
| '0002 0000 ' # 0: Version=2, Reserved=0 |
| '0000 0001 ' # 4: MorphChainCount=1 |
| '0000 0001 ' # 8: DefaultFlags=1 |
| '0000 00B4 ' # 12: StructLength=180 (+8=188) |
| '0000 0000 ' # 16: MorphFeatureCount=0 |
| '0000 0001 ' # 20: MorphSubtableCount=1 |
| '0000 00A4 ' # 24: Subtable[0].StructLength=164 (+24=188) |
| '80 ' # 28: Subtable[0].CoverageFlags=0x80 |
| '00 00 ' # 29: Subtable[0].Reserved=0 |
| '01 ' # 31: Subtable[0].MorphType=1/ContextualMorph |
| '0000 0001 ' # 32: Subtable[0].SubFeatureFlags=0x1 |
| '0000 0006 ' # 36: STXHeader.ClassCount=6 |
| '0000 0014 ' # 40: STXHeader.ClassTableOffset=20 (+36=56) |
| '0000 0038 ' # 44: STXHeader.StateArrayOffset=56 (+36=92) |
| '0000 005C ' # 48: STXHeader.EntryTableOffset=92 (+36=128) |
| '0000 0074 ' # 52: STXHeader.PerGlyphTableOffset=116 (+36=152) |
| |
| # Glyph class table. |
| '0006 0004 ' # 56: ClassTable.LookupFormat=6, .UnitSize=4 |
| '0005 0010 ' # 60: .NUnits=5, .SearchRange=16 |
| '0002 0004 ' # 64: .EntrySelector=2, .RangeShift=4 |
| '0032 0004 ' # 68: Glyph=50; Class=4 |
| '0034 0004 ' # 72: Glyph=52; Class=4 |
| '0050 0005 ' # 76: Glyph=80; Class=5 |
| '00C9 0004 ' # 80: Glyph=201; Class=4 |
| '00CA 0004 ' # 84: Glyph=202; Class=4 |
| 'FFFF 0000 ' # 88: Glyph=<end>; Value=<filler> |
| |
| # State array. |
| '0000 0000 0000 0000 0000 0001 ' # 92: State[0][0..5] |
| '0000 0000 0000 0000 0000 0001 ' # 104: State[1][0..5] |
| '0000 0000 0000 0000 0002 0001 ' # 116: State[2][0..5] |
| |
| # Entry table. |
| '0000 0000 ' # 128: Entries[0].NewState=0, .Flags=0 |
| 'FFFF FFFF ' # 132: Entries[0].MarkSubst=None, .CurSubst=None |
| '0002 0000 ' # 136: Entries[1].NewState=2, .Flags=0 |
| 'FFFF FFFF ' # 140: Entries[1].MarkSubst=None, .CurSubst=None |
| '0000 0000 ' # 144: Entries[2].NewState=0, .Flags=0 |
| 'FFFF 0000 ' # 148: Entries[2].MarkSubst=None, .CurSubst=PerGlyph #0 |
| # 152: <no padding needed for 4-byte alignment> |
| |
| # Per-glyph lookup tables. |
| '0000 0004 ' # 152: Offset from this point to per-glyph lookup #0. |
| |
| # Per-glyph lookup #0. |
| '0006 0004 ' # 156: ClassTable.LookupFormat=6, .UnitSize=4 |
| '0004 0010 ' # 160: .NUnits=4, .SearchRange=16 |
| '0002 0000 ' # 164: .EntrySelector=2, .RangeShift=0 |
| '0032 0258 ' # 168: Glyph=50; ReplacementGlyph=600 |
| '0034 0259 ' # 172: Glyph=52; ReplacementGlyph=601 |
| '00C9 025A ' # 176: Glyph=201; ReplacementGlyph=602 |
| '00CA 0384 ' # 180: Glyph=202; ReplacementGlyph=900 |
| 'FFFF 0000 ' # 184: Glyph=<end>; Value=<filler> |
| |
| ) # 188: <end> |
| assert len(MORX_CONTEXTUAL_DATA) == 188, len(MORX_CONTEXTUAL_DATA) |
| |
| |
| MORX_CONTEXTUAL_XML = [ |
| '<Version value="2"/>', |
| '<Reserved value="0"/>', |
| '<!-- MorphChainCount=1 -->', |
| '<MorphChain index="0">', |
| ' <DefaultFlags value="0x00000001"/>', |
| ' <!-- StructLength=180 -->', |
| ' <!-- MorphFeatureCount=0 -->', |
| ' <!-- MorphSubtableCount=1 -->', |
| ' <MorphSubtable index="0">', |
| ' <!-- StructLength=164 -->', |
| ' <TextDirection value="Vertical"/>', |
| ' <ProcessingOrder value="LayoutOrder"/>', |
| ' <!-- MorphType=1 -->', |
| ' <SubFeatureFlags value="0x00000001"/>', |
| ' <ContextualMorph>', |
| ' <StateTable>', |
| ' <!-- GlyphClassCount=6 -->', |
| ' <GlyphClass glyph="A" value="4"/>', |
| ' <GlyphClass glyph="B" value="4"/>', |
| ' <GlyphClass glyph="C" value="5"/>', |
| ' <GlyphClass glyph="X" value="4"/>', |
| ' <GlyphClass glyph="Y" value="4"/>', |
| ' <State index="0">', |
| ' <Transition onGlyphClass="0">', |
| ' <NewState value="0"/>', |
| ' <MarkIndex value="65535"/>', |
| ' <CurrentIndex value="65535"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="1">', |
| ' <NewState value="0"/>', |
| ' <MarkIndex value="65535"/>', |
| ' <CurrentIndex value="65535"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="2">', |
| ' <NewState value="0"/>', |
| ' <MarkIndex value="65535"/>', |
| ' <CurrentIndex value="65535"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="3">', |
| ' <NewState value="0"/>', |
| ' <MarkIndex value="65535"/>', |
| ' <CurrentIndex value="65535"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="4">', |
| ' <NewState value="0"/>', |
| ' <MarkIndex value="65535"/>', |
| ' <CurrentIndex value="65535"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="5">', |
| ' <NewState value="2"/>', |
| ' <MarkIndex value="65535"/>', |
| ' <CurrentIndex value="65535"/>', |
| ' </Transition>', |
| ' </State>', |
| ' <State index="1">', |
| ' <Transition onGlyphClass="0">', |
| ' <NewState value="0"/>', |
| ' <MarkIndex value="65535"/>', |
| ' <CurrentIndex value="65535"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="1">', |
| ' <NewState value="0"/>', |
| ' <MarkIndex value="65535"/>', |
| ' <CurrentIndex value="65535"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="2">', |
| ' <NewState value="0"/>', |
| ' <MarkIndex value="65535"/>', |
| ' <CurrentIndex value="65535"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="3">', |
| ' <NewState value="0"/>', |
| ' <MarkIndex value="65535"/>', |
| ' <CurrentIndex value="65535"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="4">', |
| ' <NewState value="0"/>', |
| ' <MarkIndex value="65535"/>', |
| ' <CurrentIndex value="65535"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="5">', |
| ' <NewState value="2"/>', |
| ' <MarkIndex value="65535"/>', |
| ' <CurrentIndex value="65535"/>', |
| ' </Transition>', |
| ' </State>', |
| ' <State index="2">', |
| ' <Transition onGlyphClass="0">', |
| ' <NewState value="0"/>', |
| ' <MarkIndex value="65535"/>', |
| ' <CurrentIndex value="65535"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="1">', |
| ' <NewState value="0"/>', |
| ' <MarkIndex value="65535"/>', |
| ' <CurrentIndex value="65535"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="2">', |
| ' <NewState value="0"/>', |
| ' <MarkIndex value="65535"/>', |
| ' <CurrentIndex value="65535"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="3">', |
| ' <NewState value="0"/>', |
| ' <MarkIndex value="65535"/>', |
| ' <CurrentIndex value="65535"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="4">', |
| ' <NewState value="0"/>', |
| ' <MarkIndex value="65535"/>', |
| ' <CurrentIndex value="0"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="5">', |
| ' <NewState value="2"/>', |
| ' <MarkIndex value="65535"/>', |
| ' <CurrentIndex value="65535"/>', |
| ' </Transition>', |
| ' </State>', |
| ' <PerGlyphLookup index="0">', |
| ' <Lookup glyph="A" value="A.swash"/>', |
| ' <Lookup glyph="B" value="B.swash"/>', |
| ' <Lookup glyph="X" value="X.swash"/>', |
| ' <Lookup glyph="Y" value="Y.swash"/>', |
| ' </PerGlyphLookup>', |
| ' </StateTable>', |
| ' </ContextualMorph>', |
| ' </MorphSubtable>', |
| '</MorphChain>', |
| ] |
| |
| |
| # Taken from “Example 2: A ligature table” in |
| # https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6morx.html |
| # as retrieved on 2017-09-11. |
| # |
| # Compared to the example table in Apple’s specification, we’ve |
| # made the following changes: |
| # |
| # * at offsets 0..35, we’ve prepended 36 bytes of boilerplate |
| # to make the data a structurally valid ‘morx’ table; |
| # |
| # * at offsets 88..91 (offsets 52..55 in Apple’s document), we’ve |
| # changed the range of the third segment from 23..24 to 26..28. |
| # The hexdump values in Apple’s specification are completely wrong; |
| # the values from the comments would work, but they can be encoded |
| # more compactly than in the specification example. For round-trip |
| # testing, we omit the ‘f’ glyph, which makes AAT lookup format 2 |
| # the most compact encoding; |
| # |
| # * at offsets 92..93 (offsets 56..57 in Apple’s document), we’ve |
| # changed the glyph class of the third segment from 5 to 6, which |
| # matches the values from the comments to the spec (but not the |
| # Apple’s hexdump). |
| # |
| # TODO: Ask Apple to fix “Example 2” in the ‘morx’ specification. |
| MORX_LIGATURE_DATA = deHexStr( |
| '0002 0000 ' # 0: Version=2, Reserved=0 |
| '0000 0001 ' # 4: MorphChainCount=1 |
| '0000 0001 ' # 8: DefaultFlags=1 |
| '0000 00DA ' # 12: StructLength=218 (+8=226) |
| '0000 0000 ' # 16: MorphFeatureCount=0 |
| '0000 0001 ' # 20: MorphSubtableCount=1 |
| '0000 00CA ' # 24: Subtable[0].StructLength=202 (+24=226) |
| '80 ' # 28: Subtable[0].CoverageFlags=0x80 |
| '00 00 ' # 29: Subtable[0].Reserved=0 |
| '02 ' # 31: Subtable[0].MorphType=2/LigatureMorph |
| '0000 0001 ' # 32: Subtable[0].SubFeatureFlags=0x1 |
| |
| # State table header. |
| '0000 0007 ' # 36: STXHeader.ClassCount=7 |
| '0000 001C ' # 40: STXHeader.ClassTableOffset=28 (+36=64) |
| '0000 0040 ' # 44: STXHeader.StateArrayOffset=64 (+36=100) |
| '0000 0078 ' # 48: STXHeader.EntryTableOffset=120 (+36=156) |
| '0000 0090 ' # 52: STXHeader.LigActionsOffset=144 (+36=180) |
| '0000 009C ' # 56: STXHeader.LigComponentsOffset=156 (+36=192) |
| '0000 00AE ' # 60: STXHeader.LigListOffset=174 (+36=210) |
| |
| # Glyph class table. |
| '0002 0006 ' # 64: ClassTable.LookupFormat=2, .UnitSize=6 |
| '0003 000C ' # 68: .NUnits=3, .SearchRange=12 |
| '0001 0006 ' # 72: .EntrySelector=1, .RangeShift=6 |
| '0016 0014 0004 ' # 76: GlyphID 20..22 [a..c] -> GlyphClass 4 |
| '0018 0017 0005 ' # 82: GlyphID 23..24 [d..e] -> GlyphClass 5 |
| '001C 001A 0006 ' # 88: GlyphID 26..28 [g..i] -> GlyphClass 6 |
| 'FFFF FFFF 0000 ' # 94: <end of lookup> |
| |
| # State array. |
| '0000 0000 0000 0000 0001 0000 0000 ' # 100: State[0][0..6] |
| '0000 0000 0000 0000 0001 0000 0000 ' # 114: State[1][0..6] |
| '0000 0000 0000 0000 0001 0002 0000 ' # 128: State[2][0..6] |
| '0000 0000 0000 0000 0001 0002 0003 ' # 142: State[3][0..6] |
| |
| # Entry table. |
| '0000 0000 ' # 156: Entries[0].NewState=0, .Flags=0 |
| '0000 ' # 160: Entries[0].ActionIndex=<n/a> because no 0x2000 flag |
| '0002 8000 ' # 162: Entries[1].NewState=2, .Flags=0x8000 (SetComponent) |
| '0000 ' # 166: Entries[1].ActionIndex=<n/a> because no 0x2000 flag |
| '0003 8000 ' # 168: Entries[2].NewState=3, .Flags=0x8000 (SetComponent) |
| '0000 ' # 172: Entries[2].ActionIndex=<n/a> because no 0x2000 flag |
| '0000 A000 ' # 174: Entries[3].NewState=0, .Flags=0xA000 (SetComponent,Act) |
| '0000 ' # 178: Entries[3].ActionIndex=0 (start at Action[0]) |
| |
| # Ligature actions table. |
| '3FFF FFE7 ' # 180: Action[0].Flags=0, .GlyphIndexDelta=-25 |
| '3FFF FFED ' # 184: Action[1].Flags=0, .GlyphIndexDelta=-19 |
| 'BFFF FFF2 ' # 188: Action[2].Flags=<end of list>, .GlyphIndexDelta=-14 |
| |
| # Ligature component table. |
| '0000 0001 ' # 192: LigComponent[0]=0, LigComponent[1]=1 |
| '0002 0003 ' # 196: LigComponent[2]=2, LigComponent[3]=3 |
| '0000 0004 ' # 200: LigComponent[4]=0, LigComponent[5]=4 |
| '0000 0008 ' # 204: LigComponent[6]=0, LigComponent[7]=8 |
| '0010 ' # 208: LigComponent[8]=16 |
| |
| # Ligature list. |
| '03E8 03E9 ' # 210: LigList[0]=1000, LigList[1]=1001 |
| '03EA 03EB ' # 214: LigList[2]=1002, LigList[3]=1003 |
| '03EC 03ED ' # 218: LigList[4]=1004, LigList[3]=1005 |
| '03EE 03EF ' # 222: LigList[5]=1006, LigList[6]=1007 |
| ) # 226: <end> |
| assert len(MORX_LIGATURE_DATA) == 226, len(MORX_LIGATURE_DATA) |
| |
| |
| MORX_LIGATURE_XML = [ |
| '<Version value="2"/>', |
| '<Reserved value="0"/>', |
| '<!-- MorphChainCount=1 -->', |
| '<MorphChain index="0">', |
| ' <DefaultFlags value="0x00000001"/>', |
| ' <!-- StructLength=218 -->', |
| ' <!-- MorphFeatureCount=0 -->', |
| ' <!-- MorphSubtableCount=1 -->', |
| ' <MorphSubtable index="0">', |
| ' <!-- StructLength=202 -->', |
| ' <TextDirection value="Vertical"/>', |
| ' <ProcessingOrder value="LayoutOrder"/>', |
| ' <!-- MorphType=2 -->', |
| ' <SubFeatureFlags value="0x00000001"/>', |
| ' <LigatureMorph>', |
| ' <StateTable>', |
| ' <!-- GlyphClassCount=7 -->', |
| ' <GlyphClass glyph="a" value="4"/>', |
| ' <GlyphClass glyph="b" value="4"/>', |
| ' <GlyphClass glyph="c" value="4"/>', |
| ' <GlyphClass glyph="d" value="5"/>', |
| ' <GlyphClass glyph="e" value="5"/>', |
| ' <GlyphClass glyph="g" value="6"/>', |
| ' <GlyphClass glyph="h" value="6"/>', |
| ' <GlyphClass glyph="i" value="6"/>', |
| ' <State index="0">', |
| ' <Transition onGlyphClass="0">', |
| ' <NewState value="0"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="1">', |
| ' <NewState value="0"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="2">', |
| ' <NewState value="0"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="3">', |
| ' <NewState value="0"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="4">', |
| ' <NewState value="2"/>', |
| ' <Flags value="SetComponent"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="5">', |
| ' <NewState value="0"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="6">', |
| ' <NewState value="0"/>', |
| ' </Transition>', |
| ' </State>', |
| ' <State index="1">', |
| ' <Transition onGlyphClass="0">', |
| ' <NewState value="0"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="1">', |
| ' <NewState value="0"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="2">', |
| ' <NewState value="0"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="3">', |
| ' <NewState value="0"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="4">', |
| ' <NewState value="2"/>', |
| ' <Flags value="SetComponent"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="5">', |
| ' <NewState value="0"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="6">', |
| ' <NewState value="0"/>', |
| ' </Transition>', |
| ' </State>', |
| ' <State index="2">', |
| ' <Transition onGlyphClass="0">', |
| ' <NewState value="0"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="1">', |
| ' <NewState value="0"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="2">', |
| ' <NewState value="0"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="3">', |
| ' <NewState value="0"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="4">', |
| ' <NewState value="2"/>', |
| ' <Flags value="SetComponent"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="5">', |
| ' <NewState value="3"/>', |
| ' <Flags value="SetComponent"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="6">', |
| ' <NewState value="0"/>', |
| ' </Transition>', |
| ' </State>', |
| ' <State index="3">', |
| ' <Transition onGlyphClass="0">', |
| ' <NewState value="0"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="1">', |
| ' <NewState value="0"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="2">', |
| ' <NewState value="0"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="3">', |
| ' <NewState value="0"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="4">', |
| ' <NewState value="2"/>', |
| ' <Flags value="SetComponent"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="5">', |
| ' <NewState value="3"/>', |
| ' <Flags value="SetComponent"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="6">', |
| ' <NewState value="0"/>', |
| ' <Flags value="SetComponent"/>', |
| ' <Action GlyphIndexDelta="-25"/>', |
| ' <Action GlyphIndexDelta="-19"/>', |
| ' <Action GlyphIndexDelta="-14"/>', |
| ' </Transition>', |
| ' </State>', |
| ' <LigComponents>', |
| ' <LigComponent index="0" value="0"/>', |
| ' <LigComponent index="1" value="1"/>', |
| ' <LigComponent index="2" value="2"/>', |
| ' <LigComponent index="3" value="3"/>', |
| ' <LigComponent index="4" value="0"/>', |
| ' <LigComponent index="5" value="4"/>', |
| ' <LigComponent index="6" value="0"/>', |
| ' <LigComponent index="7" value="8"/>', |
| ' <LigComponent index="8" value="16"/>', |
| ' </LigComponents>', |
| ' <Ligatures>', |
| ' <Ligature glyph="adf" index="0"/>', |
| ' <Ligature glyph="adg" index="1"/>', |
| ' <Ligature glyph="adh" index="2"/>', |
| ' <Ligature glyph="adi" index="3"/>', |
| ' <Ligature glyph="aef" index="4"/>', |
| ' <Ligature glyph="aeg" index="5"/>', |
| ' <Ligature glyph="aeh" index="6"/>', |
| ' <Ligature glyph="aei" index="7"/>', |
| ' </Ligatures>', |
| ' </StateTable>', |
| ' </LigatureMorph>', |
| ' </MorphSubtable>', |
| '</MorphChain>', |
| ] |
| |
| |
| # Taken from the `morx` table of the second font in DevanagariSangamMN.ttc |
| # on macOS X 10.12.6; manually pruned to just contain the insertion lookup. |
| MORX_INSERTION_DATA = deHexStr( |
| '0002 0000 ' # 0: Version=2, Reserved=0 |
| '0000 0001 ' # 4: MorphChainCount=1 |
| '0000 0001 ' # 8: DefaultFlags=1 |
| '0000 00A4 ' # 12: StructLength=164 (+8=172) |
| '0000 0000 ' # 16: MorphFeatureCount=0 |
| '0000 0001 ' # 20: MorphSubtableCount=1 |
| '0000 0094 ' # 24: Subtable[0].StructLength=148 (+24=172) |
| '00 ' # 28: Subtable[0].CoverageFlags=0x00 |
| '00 00 ' # 29: Subtable[0].Reserved=0 |
| '05 ' # 31: Subtable[0].MorphType=5/InsertionMorph |
| '0000 0001 ' # 32: Subtable[0].SubFeatureFlags=0x1 |
| '0000 0006 ' # 36: STXHeader.ClassCount=6 |
| '0000 0014 ' # 40: STXHeader.ClassTableOffset=20 (+36=56) |
| '0000 004A ' # 44: STXHeader.StateArrayOffset=74 (+36=110) |
| '0000 006E ' # 48: STXHeader.EntryTableOffset=110 (+36=146) |
| '0000 0086 ' # 52: STXHeader.InsertionActionOffset=134 (+36=170) |
| # Glyph class table. |
| '0002 0006 ' # 56: ClassTable.LookupFormat=2, .UnitSize=6 |
| '0006 0018 ' # 60: .NUnits=6, .SearchRange=24 |
| '0002 000C ' # 64: .EntrySelector=2, .RangeShift=12 |
| '00AC 00AC 0005 ' # 68: GlyphID 172..172 -> GlyphClass 5 |
| '01EB 01E6 0005 ' # 74: GlyphID 486..491 -> GlyphClass 5 |
| '01F0 01F0 0004 ' # 80: GlyphID 496..496 -> GlyphClass 4 |
| '01F8 01F6 0004 ' # 88: GlyphID 502..504 -> GlyphClass 4 |
| '01FC 01FA 0004 ' # 92: GlyphID 506..508 -> GlyphClass 4 |
| '0250 0250 0005 ' # 98: GlyphID 592..592 -> GlyphClass 5 |
| 'FFFF FFFF 0000 ' # 104: <end of lookup> |
| # State array. |
| '0000 0000 0000 0000 0001 0000 ' # 110: State[0][0..5] |
| '0000 0000 0000 0000 0001 0000 ' # 122: State[1][0..5] |
| '0000 0000 0001 0000 0001 0002 ' # 134: State[2][0..5] |
| # Entry table. |
| '0000 0000 ' # 146: Entries[0].NewState=0, .Flags=0 |
| 'FFFF ' # 150: Entries[0].CurrentInsertIndex=<None> |
| 'FFFF ' # 152: Entries[0].MarkedInsertIndex=<None> |
| '0002 0000 ' # 154: Entries[1].NewState=0, .Flags=0 |
| 'FFFF ' # 158: Entries[1].CurrentInsertIndex=<None> |
| 'FFFF ' # 160: Entries[1].MarkedInsertIndex=<None> |
| '0000 ' # 162: Entries[2].NewState=0 |
| '2820 ' # 164: .Flags=CurrentIsKashidaLike,CurrentInsertBefore |
| # .CurrentInsertCount=1, .MarkedInsertCount=0 |
| '0000 ' # 166: Entries[1].CurrentInsertIndex=0 |
| 'FFFF ' # 168: Entries[1].MarkedInsertIndex=<None> |
| # Insertion action table. |
| '022F' # 170: InsertionActionTable[0]=GlyphID 559 |
| ) # 172: <end> |
| assert len(MORX_INSERTION_DATA) == 172, len(MORX_INSERTION_DATA) |
| |
| |
| MORX_INSERTION_XML = [ |
| '<Version value="2"/>', |
| '<Reserved value="0"/>', |
| '<!-- MorphChainCount=1 -->', |
| '<MorphChain index="0">', |
| ' <DefaultFlags value="0x00000001"/>', |
| ' <!-- StructLength=164 -->', |
| ' <!-- MorphFeatureCount=0 -->', |
| ' <!-- MorphSubtableCount=1 -->', |
| ' <MorphSubtable index="0">', |
| ' <!-- StructLength=148 -->', |
| ' <TextDirection value="Horizontal"/>', |
| ' <ProcessingOrder value="LayoutOrder"/>', |
| ' <!-- MorphType=5 -->', |
| ' <SubFeatureFlags value="0x00000001"/>', |
| ' <InsertionMorph>', |
| ' <StateTable>', |
| ' <!-- GlyphClassCount=6 -->', |
| ' <GlyphClass glyph="g.172" value="5"/>', |
| ' <GlyphClass glyph="g.486" value="5"/>', |
| ' <GlyphClass glyph="g.487" value="5"/>', |
| ' <GlyphClass glyph="g.488" value="5"/>', |
| ' <GlyphClass glyph="g.489" value="5"/>', |
| ' <GlyphClass glyph="g.490" value="5"/>', |
| ' <GlyphClass glyph="g.491" value="5"/>', |
| ' <GlyphClass glyph="g.496" value="4"/>', |
| ' <GlyphClass glyph="g.502" value="4"/>', |
| ' <GlyphClass glyph="g.503" value="4"/>', |
| ' <GlyphClass glyph="g.504" value="4"/>', |
| ' <GlyphClass glyph="g.506" value="4"/>', |
| ' <GlyphClass glyph="g.507" value="4"/>', |
| ' <GlyphClass glyph="g.508" value="4"/>', |
| ' <GlyphClass glyph="g.592" value="5"/>', |
| ' <State index="0">', |
| ' <Transition onGlyphClass="0">', |
| ' <NewState value="0"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="1">', |
| ' <NewState value="0"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="2">', |
| ' <NewState value="0"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="3">', |
| ' <NewState value="0"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="4">', |
| ' <NewState value="2"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="5">', |
| ' <NewState value="0"/>', |
| ' </Transition>', |
| ' </State>', |
| ' <State index="1">', |
| ' <Transition onGlyphClass="0">', |
| ' <NewState value="0"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="1">', |
| ' <NewState value="0"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="2">', |
| ' <NewState value="0"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="3">', |
| ' <NewState value="0"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="4">', |
| ' <NewState value="2"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="5">', |
| ' <NewState value="0"/>', |
| ' </Transition>', |
| ' </State>', |
| ' <State index="2">', |
| ' <Transition onGlyphClass="0">', |
| ' <NewState value="0"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="1">', |
| ' <NewState value="0"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="2">', |
| ' <NewState value="2"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="3">', |
| ' <NewState value="0"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="4">', |
| ' <NewState value="2"/>', |
| ' </Transition>', |
| ' <Transition onGlyphClass="5">', |
| ' <NewState value="0"/>', |
| ' <Flags value="CurrentIsKashidaLike,CurrentInsertBefore"/>', |
| ' <CurrentInsertionAction glyph="g.559"/>', |
| ' </Transition>', |
| ' </State>', |
| ' </StateTable>', |
| ' </InsertionMorph>', |
| ' </MorphSubtable>', |
| '</MorphChain>', |
| ] |
| |
| |
| class MORXNoncontextualGlyphSubstitutionTest(unittest.TestCase): |
| |
| @classmethod |
| def setUpClass(cls): |
| cls.maxDiff = None |
| glyphs = ['.notdef'] + ['g.%d' % i for i in range (1, 140)] |
| glyphs[11], glyphs[13] = 'parenleft', 'parenright' |
| glyphs[135], glyphs[136] = 'parenleft.vertical', 'parenright.vertical' |
| cls.font = FakeFont(glyphs) |
| |
| def test_decompile_toXML(self): |
| table = newTable('morx') |
| table.decompile(MORX_NONCONTEXTUAL_DATA, self.font) |
| self.assertEqual(getXML(table.toXML), MORX_NONCONTEXTUAL_XML) |
| |
| def test_compile_fromXML(self): |
| table = newTable('morx') |
| for name, attrs, content in parseXML(MORX_NONCONTEXTUAL_XML): |
| table.fromXML(name, attrs, content, font=self.font) |
| self.assertEqual(hexStr(table.compile(self.font)), |
| hexStr(MORX_NONCONTEXTUAL_DATA)) |
| |
| |
| class MORXRearrangementTest(unittest.TestCase): |
| |
| @classmethod |
| def setUpClass(cls): |
| cls.maxDiff = None |
| cls.font = FakeFont(['.nodef', 'A', 'B', 'C']) |
| |
| def test_decompile_toXML(self): |
| table = newTable('morx') |
| table.decompile(MORX_REARRANGEMENT_DATA, self.font) |
| self.assertEqual(getXML(table.toXML), MORX_REARRANGEMENT_XML) |
| |
| def test_compile_fromXML(self): |
| table = newTable('morx') |
| for name, attrs, content in parseXML(MORX_REARRANGEMENT_XML): |
| table.fromXML(name, attrs, content, font=self.font) |
| self.assertEqual(hexStr(table.compile(self.font)), |
| hexStr(MORX_REARRANGEMENT_DATA)) |
| |
| |
| class MORXContextualSubstitutionTest(unittest.TestCase): |
| |
| @classmethod |
| def setUpClass(cls): |
| cls.maxDiff = None |
| g = ['.notdef'] + ['g.%d' % i for i in range (1, 910)] |
| g[80] = 'C' |
| g[50], g[52], g[201], g[202] = 'A', 'B', 'X', 'Y' |
| g[600], g[601], g[602], g[900] = ( |
| 'A.swash', 'B.swash', 'X.swash', 'Y.swash') |
| cls.font = FakeFont(g) |
| |
| def test_decompile_toXML(self): |
| table = newTable('morx') |
| table.decompile(MORX_CONTEXTUAL_DATA, self.font) |
| self.assertEqual(getXML(table.toXML), MORX_CONTEXTUAL_XML) |
| |
| def test_compile_fromXML(self): |
| table = newTable('morx') |
| for name, attrs, content in parseXML(MORX_CONTEXTUAL_XML): |
| table.fromXML(name, attrs, content, font=self.font) |
| self.assertEqual(hexStr(table.compile(self.font)), |
| hexStr(MORX_CONTEXTUAL_DATA)) |
| |
| |
| class MORXLigatureSubstitutionTest(unittest.TestCase): |
| |
| @classmethod |
| def setUpClass(cls): |
| cls.maxDiff = None |
| g = ['.notdef'] + ['g.%d' % i for i in range (1, 1515)] |
| g[20:29] = 'a b c d e f g h i'.split() |
| g[1000:1008] = 'adf adg adh adi aef aeg aeh aei'.split() |
| g[1008:1016] = 'bdf bdg bdh bdi bef beg beh bei'.split() |
| g[1500:1507] = 'cdf cdg cdh cdi cef ceg ceh'.split() |
| g[1511] = 'cei' |
| cls.font = FakeFont(g) |
| |
| def test_decompile_toXML(self): |
| table = newTable('morx') |
| table.decompile(MORX_LIGATURE_DATA, self.font) |
| self.assertEqual(getXML(table.toXML), MORX_LIGATURE_XML) |
| |
| def test_compile_fromXML(self): |
| table = newTable('morx') |
| for name, attrs, content in parseXML(MORX_LIGATURE_XML): |
| table.fromXML(name, attrs, content, font=self.font) |
| self.assertEqual(hexStr(table.compile(self.font)), |
| hexStr(MORX_LIGATURE_DATA)) |
| |
| |
| class MORXGlyphInsertionTest(unittest.TestCase): |
| |
| @classmethod |
| def setUpClass(cls): |
| cls.maxDiff = None |
| cls.font = FakeFont(['.notdef'] + ['g.%d' % i for i in range (1, 910)]) |
| |
| def test_decompile_toXML(self): |
| table = newTable('morx') |
| table.decompile(MORX_INSERTION_DATA, self.font) |
| self.assertEqual(getXML(table.toXML), MORX_INSERTION_XML) |
| |
| def test_compile_fromXML(self): |
| table = newTable('morx') |
| for name, attrs, content in parseXML(MORX_INSERTION_XML): |
| table.fromXML(name, attrs, content, font=self.font) |
| self.assertEqual(hexStr(table.compile(self.font)), |
| hexStr(MORX_INSERTION_DATA)) |
| |
| |
| class MORXCoverageFlagsTest(unittest.TestCase): |
| |
| @classmethod |
| def setUpClass(cls): |
| cls.maxDiff = None |
| cls.font = FakeFont(['.notdef', 'A', 'B', 'C']) |
| |
| def checkFlags(self, flags, textDirection, processingOrder, |
| checkCompile=True): |
| data = bytesjoin([ |
| MORX_REARRANGEMENT_DATA[:28], |
| bytechr(flags << 4), |
| MORX_REARRANGEMENT_DATA[29:]]) |
| xml = [] |
| for line in MORX_REARRANGEMENT_XML: |
| if line.startswith(' <TextDirection '): |
| line = ' <TextDirection value="%s"/>' % textDirection |
| elif line.startswith(' <ProcessingOrder '): |
| line = ' <ProcessingOrder value="%s"/>' % processingOrder |
| xml.append(line) |
| table1 = newTable('morx') |
| table1.decompile(data, self.font) |
| self.assertEqual(getXML(table1.toXML), xml) |
| if checkCompile: |
| table2 = newTable('morx') |
| for name, attrs, content in parseXML(xml): |
| table2.fromXML(name, attrs, content, font=self.font) |
| self.assertEqual(hexStr(table2.compile(self.font)), hexStr(data)) |
| |
| def test_CoverageFlags(self): |
| self.checkFlags(0x0, "Horizontal", "LayoutOrder") |
| self.checkFlags(0x1, "Horizontal", "LogicalOrder") |
| self.checkFlags(0x2, "Any", "LayoutOrder") |
| self.checkFlags(0x3, "Any", "LogicalOrder") |
| self.checkFlags(0x4, "Horizontal", "ReversedLayoutOrder") |
| self.checkFlags(0x5, "Horizontal", "ReversedLogicalOrder") |
| self.checkFlags(0x6, "Any", "ReversedLayoutOrder") |
| self.checkFlags(0x7, "Any", "ReversedLogicalOrder") |
| self.checkFlags(0x8, "Vertical", "LayoutOrder") |
| self.checkFlags(0x9, "Vertical", "LogicalOrder") |
| # We do not always check the compilation to binary data: |
| # some flag combinations do not make sense to emit in binary. |
| # Specifically, if bit 28 (TextDirection=Any) is set in |
| # CoverageFlags, bit 30 (TextDirection=Vertical) is to be |
| # ignored according to the 'morx' specification. We still want |
| # to test the _decoding_ of 'morx' subtables whose CoverageFlags |
| # have both bits 28 and 30 set, since this is a valid flag |
| # combination with defined semantics. However, our encoder |
| # does not set TextDirection=Vertical when TextDirection=Any. |
| self.checkFlags(0xA, "Any", "LayoutOrder", checkCompile=False) |
| self.checkFlags(0xB, "Any", "LogicalOrder", checkCompile=False) |
| self.checkFlags(0xC, "Vertical", "ReversedLayoutOrder") |
| self.checkFlags(0xD, "Vertical", "ReversedLogicalOrder") |
| self.checkFlags(0xE, "Any", "ReversedLayoutOrder", checkCompile=False) |
| self.checkFlags(0xF, "Any", "ReversedLogicalOrder", checkCompile=False) |
| |
| def test_ReservedCoverageFlags(self): |
| # 8A BC DE = TextDirection=Vertical, Reserved=0xABCDE |
| # Note that the lower 4 bits of the first byte are already |
| # part of the Reserved value. We test the full round-trip |
| # to encoding and decoding is quite hairy. |
| data = bytesjoin([ |
| MORX_REARRANGEMENT_DATA[:28], |
| bytechr(0x8A), bytechr(0xBC), bytechr(0xDE), |
| MORX_REARRANGEMENT_DATA[31:]]) |
| table = newTable('morx') |
| table.decompile(data, self.font) |
| subtable = table.table.MorphChain[0].MorphSubtable[0] |
| self.assertEqual(subtable.Reserved, 0xABCDE) |
| xml = getXML(table.toXML) |
| self.assertIn(' <Reserved value="0xabcde"/>', xml) |
| table2 = newTable('morx') |
| for name, attrs, content in parseXML(xml): |
| table2.fromXML(name, attrs, content, font=self.font) |
| self.assertEqual(hexStr(table2.compile(self.font)[28:31]), "8abcde") |
| |
| |
| class UnsupportedMorxLookupTest(unittest.TestCase): |
| def __init__(self, methodName): |
| unittest.TestCase.__init__(self, methodName) |
| # Python 3 renamed assertRaisesRegexp to assertRaisesRegex, |
| # and fires deprecation warnings if a program uses the old name. |
| if not hasattr(self, "assertRaisesRegex"): |
| self.assertRaisesRegex = self.assertRaisesRegexp |
| |
| def test_unsupportedLookupType(self): |
| data = bytesjoin([ |
| MORX_NONCONTEXTUAL_DATA[:67], |
| bytechr(66), |
| MORX_NONCONTEXTUAL_DATA[69:]]) |
| with self.assertRaisesRegex(AssertionError, |
| r"unsupported 'morx' lookup type 66"): |
| morx = newTable('morx') |
| morx.decompile(data, FakeFont(['.notdef'])) |
| |
| |
| if __name__ == '__main__': |
| import sys |
| sys.exit(unittest.main()) |
