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subset_test: add subset of Iosekva-Medium.ttf with ContextSubstFormat3

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Cosimo Lupo 2020-05-11 18:32:32 +01:00
parent 890c5061b5
commit 8bbf30d569
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3 changed files with 626 additions and 1 deletions
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4
LICENSE.external
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@ -26,6 +26,10 @@ XITS font project
This Font Software is licensed under the SIL Open Font License, Version 1.1.
Iosevka
Copyright (c) 2015-2020 Belleve Invis (belleve@typeof.net).
This Font Software is licensed under the SIL Open Font License, Version 1.1.
This license is copied below, and is also available with a FAQ at:
http://scripts.sil.org/OFL

610
Tests/subset/data/TestContextSubstFormat3.ttx Normal file
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@ -0,0 +1,610 @@
<?xml version="1.0" encoding="UTF-8"?>
<ttFont sfntVersion="\x00\x01\x00\x00" ttLibVersion="4.9">
<GlyphOrder>
<!-- The 'id' attribute is only for humans; it is ignored when parsed. -->
<GlyphID id="0" name=".notdef"/>
<GlyphID id="1" name="plus"/>
<GlyphID id="2" name="glyph00002"/>
<GlyphID id="3" name="glyph00003"/>
<GlyphID id="4" name="glyph00004"/>
<GlyphID id="5" name="glyph00005"/>
<GlyphID id="6" name="glyph00006"/>
<GlyphID id="7" name="glyph00007"/>
</GlyphOrder>
<head>
<!-- Most of this table will be recalculated by the compiler -->
<tableVersion value="1.0"/>
<fontRevision value="1.0"/>
<checkSumAdjustment value="0xa69ed898"/>
<magicNumber value="0x5f0f3cf5"/>
<flags value="00000000 00001111"/>
<unitsPerEm value="1000"/>
<created value="Mon Nov 21 06:10:39 2016"/>
<modified value="Fri Apr 24 05:31:23 2020"/>
<xMin value="-1000"/>
<yMin value="-509"/>
<xMax value="1135"/>
<yMax value="1194"/>
<macStyle value="00000000 00000000"/>
<lowestRecPPEM value="8"/>
<fontDirectionHint value="0"/>
<indexToLocFormat value="0"/>
<glyphDataFormat value="0"/>
</head>
<hhea>
<tableVersion value="0x00010000"/>
<ascent value="977"/>
<descent value="-205"/>
<lineGap value="67"/>
<advanceWidthMax value="1000"/>
<minLeftSideBearing value="-1000"/>
<minRightSideBearing value="-1000"/>
<xMaxExtent value="1135"/>
<caretSlopeRise value="1"/>
<caretSlopeRun value="0"/>
<caretOffset value="0"/>
<reserved0 value="0"/>
<reserved1 value="0"/>
<reserved2 value="0"/>
<reserved3 value="0"/>
<metricDataFormat value="0"/>
<numberOfHMetrics value="1"/>
</hhea>
<maxp>
<!-- Most of this table will be recalculated by the compiler -->
<tableVersion value="0x10000"/>
<numGlyphs value="8"/>
<maxPoints value="240"/>
<maxContours value="41"/>
<maxCompositePoints value="163"/>
<maxCompositeContours value="12"/>
<maxZones value="1"/>
<maxTwilightPoints value="0"/>
<maxStorage value="0"/>
<maxFunctionDefs value="0"/>
<maxInstructionDefs value="0"/>
<maxStackElements value="0"/>
<maxSizeOfInstructions value="0"/>
<maxComponentElements value="4"/>
<maxComponentDepth value="3"/>
</maxp>
<OS_2>
<!-- The fields 'usFirstCharIndex' and 'usLastCharIndex'
will be recalculated by the compiler -->
<version value="4"/>
<xAvgCharWidth value="500"/>
<usWeightClass value="500"/>
<usWidthClass value="5"/>
<fsType value="00000000 00000000"/>
<ySubscriptXSize value="665"/>
<ySubscriptYSize value="716"/>
<ySubscriptXOffset value="0"/>
<ySubscriptYOffset value="143"/>
<ySuperscriptXSize value="0"/>
<ySuperscriptYSize value="0"/>
<ySuperscriptXOffset value="0"/>
<ySuperscriptYOffset value="0"/>
<yStrikeoutSize value="51"/>
<yStrikeoutPosition value="265"/>
<sFamilyClass value="2057"/>
<panose>
<bFamilyType value="2"/>
<bSerifStyle value="0"/>
<bWeight value="6"/>
<bProportion value="9"/>
<bContrast value="0"/>
<bStrokeVariation value="0"/>
<bArmStyle value="0"/>
<bLetterForm value="0"/>
<bMidline value="0"/>
<bXHeight value="0"/>
</panose>
<ulUnicodeRange1 value="00000000 00000000 00000000 00000001"/>
<ulUnicodeRange2 value="00000000 00000000 00000000 00000000"/>
<ulUnicodeRange3 value="00000000 00000000 00000000 00000000"/>
<ulUnicodeRange4 value="00000000 00000000 00000000 00000000"/>
<achVendID value="BE5N"/>
<fsSelection value="00000000 11000000"/>
<usFirstCharIndex value="43"/>
<usLastCharIndex value="43"/>
<sTypoAscender value="977"/>
<sTypoDescender value="-272"/>
<sTypoLineGap value="0"/>
<usWinAscent value="977"/>
<usWinDescent value="272"/>
<ulCodePageRange1 value="00100000 00000000 00000001 00011111"/>
<ulCodePageRange2 value="11000100 00000000 00000000 00000000"/>
<sxHeight value="530"/>
<sCapHeight value="735"/>
<usDefaultChar value="0"/>
<usBreakChar value="32"/>
<usMaxContext value="8"/>
</OS_2>
<hmtx>
<mtx name=".notdef" width="500" lsb="57"/>
<mtx name="glyph00002" width="500" lsb="57"/>
<mtx name="glyph00003" width="500" lsb="57"/>
<mtx name="glyph00004" width="500" lsb="-8"/>
<mtx name="glyph00005" width="500" lsb="-8"/>
<mtx name="glyph00006" width="500" lsb="-8"/>
<mtx name="glyph00007" width="500" lsb="-65"/>
<mtx name="plus" width="500" lsb="57"/>
</hmtx>
<cmap>
<tableVersion version="0"/>
<cmap_format_4 platformID="0" platEncID="3" language="0">
<map code="0x2b" name="plus"/><!-- PLUS SIGN -->
</cmap_format_4>
<cmap_format_12 platformID="0" platEncID="4" format="12" reserved="0" length="28" language="0" nGroups="1">
<map code="0x2b" name="plus"/><!-- PLUS SIGN -->
</cmap_format_12>
<cmap_format_4 platformID="3" platEncID="1" language="0">
<map code="0x2b" name="plus"/><!-- PLUS SIGN -->
</cmap_format_4>
<cmap_format_12 platformID="3" platEncID="10" format="12" reserved="0" length="28" language="0" nGroups="1">
<map code="0x2b" name="plus"/><!-- PLUS SIGN -->
</cmap_format_12>
</cmap>
<loca>
<!-- The 'loca' table will be calculated by the compiler -->
</loca>
<glyf>
<!-- The xMin, yMin, xMax and yMax values
will be recalculated by the compiler. -->
<TTGlyph name=".notdef"/><!-- contains no outline data -->
<TTGlyph name="glyph00002" xMin="57" yMin="139" xMax="508" yMax="541">
<contour>
<pt x="203" y="139" on="1"/>
<pt x="203" y="298" on="1"/>
<pt x="57" y="298" on="1"/>
<pt x="57" y="382" on="1"/>
<pt x="203" y="382" on="1"/>
<pt x="203" y="541" on="1"/>
<pt x="297" y="541" on="1"/>
<pt x="297" y="382" on="1"/>
<pt x="508" y="382" on="1"/>
<pt x="508" y="298" on="1"/>
<pt x="297" y="298" on="1"/>
<pt x="297" y="139" on="1"/>
</contour>
<instructions/>
</TTGlyph>
<TTGlyph name="glyph00003" xMin="57" yMin="139" xMax="508" yMax="541">
<contour>
<pt x="260" y="139" on="1"/>
<pt x="260" y="298" on="1"/>
<pt x="57" y="298" on="1"/>
<pt x="57" y="382" on="1"/>
<pt x="260" y="382" on="1"/>
<pt x="260" y="541" on="1"/>
<pt x="354" y="541" on="1"/>
<pt x="354" y="382" on="1"/>
<pt x="508" y="382" on="1"/>
<pt x="508" y="298" on="1"/>
<pt x="354" y="298" on="1"/>
<pt x="354" y="139" on="1"/>
</contour>
<instructions/>
</TTGlyph>
<TTGlyph name="glyph00004" xMin="-8" yMin="139" xMax="508" yMax="541">
<contour>
<pt x="203" y="139" on="1"/>
<pt x="203" y="298" on="1"/>
<pt x="-8" y="298" on="1"/>
<pt x="-8" y="382" on="1"/>
<pt x="203" y="382" on="1"/>
<pt x="203" y="541" on="1"/>
<pt x="297" y="541" on="1"/>
<pt x="297" y="382" on="1"/>
<pt x="508" y="382" on="1"/>
<pt x="508" y="298" on="1"/>
<pt x="297" y="298" on="1"/>
<pt x="297" y="139" on="1"/>
</contour>
<instructions/>
</TTGlyph>
<TTGlyph name="glyph00005" xMin="-8" yMin="139" xMax="443" yMax="541">
<contour>
<pt x="203" y="139" on="1"/>
<pt x="203" y="298" on="1"/>
<pt x="-8" y="298" on="1"/>
<pt x="-8" y="382" on="1"/>
<pt x="203" y="382" on="1"/>
<pt x="203" y="541" on="1"/>
<pt x="297" y="541" on="1"/>
<pt x="297" y="382" on="1"/>
<pt x="443" y="382" on="1"/>
<pt x="443" y="298" on="1"/>
<pt x="297" y="298" on="1"/>
<pt x="297" y="139" on="1"/>
</contour>
<instructions/>
</TTGlyph>
<TTGlyph name="glyph00006" xMin="-8" yMin="139" xMax="443" yMax="541">
<contour>
<pt x="146" y="139" on="1"/>
<pt x="146" y="298" on="1"/>
<pt x="-8" y="298" on="1"/>
<pt x="-8" y="382" on="1"/>
<pt x="146" y="382" on="1"/>
<pt x="146" y="541" on="1"/>
<pt x="240" y="541" on="1"/>
<pt x="240" y="382" on="1"/>
<pt x="443" y="382" on="1"/>
<pt x="443" y="298" on="1"/>
<pt x="240" y="298" on="1"/>
<pt x="240" y="139" on="1"/>
</contour>
<instructions/>
</TTGlyph>
<TTGlyph name="glyph00007" xMin="-65" yMin="139" xMax="443" yMax="541">
<contour>
<pt x="203" y="139" on="1"/>
<pt x="203" y="298" on="1"/>
<pt x="-65" y="298" on="1"/>
<pt x="-65" y="382" on="1"/>
<pt x="203" y="382" on="1"/>
<pt x="203" y="541" on="1"/>
<pt x="297" y="541" on="1"/>
<pt x="297" y="382" on="1"/>
<pt x="443" y="382" on="1"/>
<pt x="443" y="298" on="1"/>
<pt x="297" y="298" on="1"/>
<pt x="297" y="139" on="1"/>
</contour>
<instructions/>
</TTGlyph>
<TTGlyph name="plus" xMin="57" yMin="139" xMax="443" yMax="541">
<contour>
<pt x="203" y="139" on="1"/>
<pt x="203" y="298" on="1"/>
<pt x="57" y="298" on="1"/>
<pt x="57" y="382" on="1"/>
<pt x="203" y="382" on="1"/>
<pt x="203" y="541" on="1"/>
<pt x="297" y="541" on="1"/>
<pt x="297" y="382" on="1"/>
<pt x="443" y="382" on="1"/>
<pt x="443" y="298" on="1"/>
<pt x="297" y="298" on="1"/>
<pt x="297" y="139" on="1"/>
</contour>
<instructions/>
</TTGlyph>
</glyf>
<name>
<namerecord nameID="0" platformID="3" platEncID="1" langID="0x409">
Copyright (c) 2015-2019 Belleve Invis.
</namerecord>
<namerecord nameID="1" platformID="3" platEncID="1" langID="0x409">
Iosevka Medium
</namerecord>
<namerecord nameID="2" platformID="3" platEncID="1" langID="0x409">
Regular
</namerecord>
<namerecord nameID="3" platformID="3" platEncID="1" langID="0x409">
Iosevka Medium Version 3.0.0-rc.8
</namerecord>
<namerecord nameID="4" platformID="3" platEncID="1" langID="0x409">
Iosevka Medium
</namerecord>
<namerecord nameID="5" platformID="3" platEncID="1" langID="0x409">
Version 3.0.0-rc.8; ttfautohint (v1.8.3)
</namerecord>
<namerecord nameID="6" platformID="3" platEncID="1" langID="0x409">
Iosevka-Medium
</namerecord>
</name>
<post>
<formatType value="3.0"/>
<italicAngle value="0.0"/>
<underlinePosition value="-50"/>
<underlineThickness value="50"/>
<isFixedPitch value="1"/>
<minMemType42 value="0"/>
<maxMemType42 value="6380"/>
<minMemType1 value="0"/>
<maxMemType1 value="1"/>
</post>
<gasp>
<gaspRange rangeMaxPPEM="65535" rangeGaspBehavior="15"/>
</gasp>
<GDEF>
<Version value="0x00010000"/>
<GlyphClassDef Format="2">
<ClassDef glyph=".notdef" class="1"/>
<ClassDef glyph="glyph00002" class="1"/>
<ClassDef glyph="glyph00003" class="1"/>
<ClassDef glyph="glyph00004" class="1"/>
<ClassDef glyph="glyph00005" class="1"/>
<ClassDef glyph="glyph00006" class="1"/>
<ClassDef glyph="glyph00007" class="1"/>
<ClassDef glyph="plus" class="1"/>
</GlyphClassDef>
</GDEF>
<GPOS>
<Version value="0x00010000"/>
<ScriptList>
<!-- ScriptCount=1 -->
<ScriptRecord index="0">
<ScriptTag value="DFLT"/>
<Script>
<DefaultLangSys>
<ReqFeatureIndex value="65535"/>
<!-- FeatureCount=0 -->
</DefaultLangSys>
<!-- LangSysCount=0 -->
</Script>
</ScriptRecord>
</ScriptList>
<FeatureList>
<!-- FeatureCount=0 -->
</FeatureList>
<LookupList>
<!-- LookupCount=0 -->
</LookupList>
</GPOS>
<GSUB>
<Version value="0x00010000"/>
<ScriptList>
<!-- ScriptCount=4 -->
<ScriptRecord index="0">
<ScriptTag value="DFLT"/>
<Script>
<DefaultLangSys>
<ReqFeatureIndex value="65535"/>
<!-- FeatureCount=1 -->
<FeatureIndex index="0" value="0"/>
</DefaultLangSys>
<!-- LangSysCount=0 -->
</Script>
</ScriptRecord>
<ScriptRecord index="1">
<ScriptTag value="cyrl"/>
<Script>
<DefaultLangSys>
<ReqFeatureIndex value="65535"/>
<!-- FeatureCount=1 -->
<FeatureIndex index="0" value="0"/>
</DefaultLangSys>
<!-- LangSysCount=0 -->
</Script>
</ScriptRecord>
<ScriptRecord index="2">
<ScriptTag value="grek"/>
<Script>
<DefaultLangSys>
<ReqFeatureIndex value="65535"/>
<!-- FeatureCount=1 -->
<FeatureIndex index="0" value="0"/>
</DefaultLangSys>
<!-- LangSysCount=0 -->
</Script>
</ScriptRecord>
<ScriptRecord index="3">
<ScriptTag value="latn"/>
<Script>
<DefaultLangSys>
<ReqFeatureIndex value="65535"/>
<!-- FeatureCount=1 -->
<FeatureIndex index="0" value="0"/>
</DefaultLangSys>
<!-- LangSysCount=0 -->
</Script>
</ScriptRecord>
</ScriptList>
<FeatureList>
<!-- FeatureCount=1 -->
<FeatureRecord index="0">
<FeatureTag value="calt"/>
<Feature>
<!-- LookupCount=2 -->
<LookupListIndex index="0" value="0"/>
<LookupListIndex index="1" value="1"/>
</Feature>
</FeatureRecord>
</FeatureList>
<LookupList>
<!-- LookupCount=6 -->
<Lookup index="0">
<LookupType value="6"/>
<LookupFlag value="0"/>
<!-- SubTableCount=1 -->
<ChainContextSubst index="0" Format="2">
<Coverage Format="1">
<Glyph value="plus"/>
</Coverage>
<BacktrackClassDef Format="1">
<ClassDef glyph="glyph00005" class="1"/>
<ClassDef glyph="glyph00007" class="1"/>
</BacktrackClassDef>
<InputClassDef Format="1">
<ClassDef glyph="plus" class="1"/>
</InputClassDef>
<LookAheadClassDef Format="2">
</LookAheadClassDef>
<!-- ChainSubClassSetCount=2 -->
<ChainSubClassSet index="0" empty="1"/>
<ChainSubClassSet index="1">
<!-- ChainSubClassRuleCount=4 -->
<ChainSubClassRule index="0">
<!-- BacktrackGlyphCount=1 -->
<Backtrack index="0" value="1"/>
<!-- InputGlyphCount=1 -->
<!-- LookAheadGlyphCount=0 -->
<!-- SubstCount=1 -->
<SubstLookupRecord index="0">
<SequenceIndex value="0"/>
<LookupListIndex value="5"/>
</SubstLookupRecord>
</ChainSubClassRule>
<ChainSubClassRule index="1">
<!-- BacktrackGlyphCount=0 -->
<!-- InputGlyphCount=4 -->
<Input index="0" value="1"/>
<Input index="1" value="1"/>
<Input index="2" value="1"/>
<!-- LookAheadGlyphCount=0 -->
<!-- SubstCount=4 -->
<SubstLookupRecord index="0">
<SequenceIndex value="0"/>
<LookupListIndex value="4"/>
</SubstLookupRecord>
<SubstLookupRecord index="1">
<SequenceIndex value="1"/>
<LookupListIndex value="3"/>
</SubstLookupRecord>
<SubstLookupRecord index="2">
<SequenceIndex value="2"/>
<LookupListIndex value="3"/>
</SubstLookupRecord>
<SubstLookupRecord index="3">
<SequenceIndex value="3"/>
<LookupListIndex value="2"/>
</SubstLookupRecord>
</ChainSubClassRule>
<ChainSubClassRule index="2">
<!-- BacktrackGlyphCount=0 -->
<!-- InputGlyphCount=3 -->
<Input index="0" value="1"/>
<Input index="1" value="1"/>
<!-- LookAheadGlyphCount=0 -->
<!-- SubstCount=3 -->
<SubstLookupRecord index="0">
<SequenceIndex value="0"/>
<LookupListIndex value="4"/>
</SubstLookupRecord>
<SubstLookupRecord index="1">
<SequenceIndex value="1"/>
<LookupListIndex value="3"/>
</SubstLookupRecord>
<SubstLookupRecord index="2">
<SequenceIndex value="2"/>
<LookupListIndex value="2"/>
</SubstLookupRecord>
</ChainSubClassRule>
<ChainSubClassRule index="3">
<!-- BacktrackGlyphCount=0 -->
<!-- InputGlyphCount=2 -->
<Input index="0" value="1"/>
<!-- LookAheadGlyphCount=0 -->
<!-- SubstCount=2 -->
<SubstLookupRecord index="0">
<SequenceIndex value="0"/>
<LookupListIndex value="4"/>
</SubstLookupRecord>
<SubstLookupRecord index="1">
<SequenceIndex value="1"/>
<LookupListIndex value="2"/>
</SubstLookupRecord>
</ChainSubClassRule>
</ChainSubClassSet>
</ChainContextSubst>
</Lookup>
<Lookup index="1">
<LookupType value="5"/>
<LookupFlag value="0"/>
<!-- SubTableCount=2 -->
<ContextSubst index="0" Format="3">
<!-- GlyphCount=3 -->
<!-- SubstCount=2 -->
<Coverage index="0" Format="1">
<Glyph value="glyph00002"/>
</Coverage>
<Coverage index="1" Format="1">
<Glyph value="glyph00004"/>
</Coverage>
<Coverage index="2" Format="1">
<Glyph value="glyph00005"/>
</Coverage>
<SubstLookupRecord index="0">
<SequenceIndex value="0"/>
<LookupListIndex value="5"/>
</SubstLookupRecord>
<SubstLookupRecord index="1">
<SequenceIndex value="2"/>
<LookupListIndex value="5"/>
</SubstLookupRecord>
</ContextSubst>
<ContextSubst index="1" Format="3">
<!-- GlyphCount=2 -->
<!-- SubstCount=2 -->
<Coverage index="0" Format="1">
<Glyph value="glyph00002"/>
</Coverage>
<Coverage index="1" Format="1">
<Glyph value="glyph00005"/>
</Coverage>
<SubstLookupRecord index="0">
<SequenceIndex value="0"/>
<LookupListIndex value="5"/>
</SubstLookupRecord>
<SubstLookupRecord index="1">
<SequenceIndex value="1"/>
<LookupListIndex value="5"/>
</SubstLookupRecord>
</ContextSubst>
</Lookup>
<Lookup index="2">
<LookupType value="1"/>
<LookupFlag value="0"/>
<!-- SubTableCount=1 -->
<SingleSubst index="0" Format="1">
<Substitution in="plus" out="glyph00005"/>
</SingleSubst>
</Lookup>
<Lookup index="3">
<LookupType value="1"/>
<LookupFlag value="0"/>
<!-- SubTableCount=1 -->
<SingleSubst index="0" Format="1">
<Substitution in="plus" out="glyph00004"/>
</SingleSubst>
</Lookup>
<Lookup index="4">
<LookupType value="1"/>
<LookupFlag value="0"/>
<!-- SubTableCount=1 -->
<SingleSubst index="0" Format="1">
<Substitution in="plus" out="glyph00002"/>
</SingleSubst>
</Lookup>
<Lookup index="5">
<LookupType value="1"/>
<LookupFlag value="0"/>
<!-- SubTableCount=1 -->
<SingleSubst index="0" Format="2">
<Substitution in="glyph00002" out="glyph00003"/>
<Substitution in="glyph00005" out="glyph00006"/>
<Substitution in="plus" out="glyph00007"/>
</SingleSubst>
</Lookup>
</LookupList>
</GSUB>
</ttFont>

13
Tests/subset/subset_test.py
View File

@ -56,7 +56,7 @@ class SubsetTest(unittest.TestCase):
lines.append(line.rstrip() + os.linesep)
return lines
def expect_ttx(self, font, expected_ttx, tables):
def expect_ttx(self, font, expected_ttx, tables=None):
path = self.temp_path(suffix=".ttx")
font.saveXML(path, tables=tables)
actual = self.read_ttx(path)
@ -732,6 +732,17 @@ class SubsetTest(unittest.TestCase):
self.assertEqual(ttf.flavor, None)
def test_subset_context_subst_format_3(self):
# https://github.com/fonttools/fonttools/issues/1879
# Test font contains 'calt' feature with Format 3 ContextSubst lookup subtables
ttx = self.getpath("TestContextSubstFormat3.ttx")
font, fontpath = self.compile_font(ttx, ".ttf")
subsetpath = self.temp_path(".ttf")
subset.main([fontpath, "--unicodes=*", "--output-file=%s" % subsetpath])
subsetfont = TTFont(subsetpath)
# check all glyphs are kept via GSUB closure, no changes expected
self.expect_ttx(subsetfont, ttx)
@pytest.fixture
def featureVarsTestFont():