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fonttools/Tests/ttLib/tables/_m_o_r_x_test.py

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[AAT] Support `morx` tables with Rearrangement subtables
2017-09-04 12:29:55 +02:00
# coding: utf-8
[AAT] Support `mort` and `morx` tables with non-contextual substitutions Other metamorphosis types are not yet supported and will raise an error upon decompilation. The TTX tool catches the error and continues to emit a hexdump of the table contents, just as before this change.
2017-08-29 12:52:30 +02:00
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 -->',
' <CoverageFlags value="128"/>',
' <Reserved value="0"/>',
' <!-- MorphType=4 -->',
' <SubFeatureFlags value="0x00000001"/>',
' <NoncontextualMorph>',
' <Substitution>',
' <Lookup glyph="parenleft" value="parenleft.vertical"/>',
' <Lookup glyph="parenright" value="parenright.vertical"/>',
' </Substitution>',
' </NoncontextualMorph>',
' </MorphSubtable>',
'</MorphChain>',
]
[AAT] Support `morx` tables with Rearrangement subtables
2017-09-04 12:29:55 +02:00
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
'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 -->',
' <CoverageFlags value="128"/>',
' <Reserved value="0"/>',
' <!-- 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>',
]
[AAT] Support `mort` and `morx` tables with non-contextual substitutions Other metamorphosis types are not yet supported and will raise an error upon decompilation. The TTX tool catches the error and continues to emit a hexdump of the table contents, just as before this change.
2017-08-29 12:52:30 +02:00
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)
[AAT] Write AATLookups to XML in alphabetical order again The XML output for other tables is also sorted alphabetically by glyph name, not by glyph order. This reverts commit c77e9fe12d5879aeb79c05f8ececebb3275524b7.
2017-09-01 15:56:21 +02:00
self.assertEqual(getXML(table.toXML), MORX_NONCONTEXTUAL_XML)
[AAT] Support `mort` and `morx` tables with non-contextual substitutions Other metamorphosis types are not yet supported and will raise an error upon decompilation. The TTX tool catches the error and continues to emit a hexdump of the table contents, just as before this change.
2017-08-29 12:52:30 +02:00
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))
[AAT] Support `morx` tables with Rearrangement subtables
2017-09-04 12:29:55 +02:00
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))
[AAT] Support `mort` and `morx` tables with non-contextual substitutions Other metamorphosis types are not yet supported and will raise an error upon decompilation. The TTX tool catches the error and continues to emit a hexdump of the table contents, just as before this change.
2017-08-29 12:52:30 +02:00
if __name__ == '__main__':
import sys
sys.exit(unittest.main())
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