Merge pull request #3622 from fonttools/repro-3616

subset_test: add failing test to reproduce issue #3616
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Cosimo Lupo 2024-08-30 18:19:22 +01:00 committed by GitHub
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<pt x="862" y="-238" on="1"/>
<pt x="936" y="-238" on="0"/>
<pt x="1036" y="-125" on="0"/>
<pt x="1036" y="-13" on="1"/>
</contour>
<instructions/>
</TTGlyph>
<TTGlyph name="space"/><!-- contains no outline data -->
</glyf>
<name>
<namerecord nameID="0" platformID="3" platEncID="1" langID="0x409">
Copyright (c) 2004-2022 SIL International
</namerecord>
<namerecord nameID="1" platformID="3" platEncID="1" langID="0x409">
Andika
</namerecord>
<namerecord nameID="2" platformID="3" platEncID="1" langID="0x409">
Regular
</namerecord>
<namerecord nameID="3" platformID="3" platEncID="1" langID="0x409">
SIL International: Andika Regular: 2022
</namerecord>
<namerecord nameID="4" platformID="3" platEncID="1" langID="0x409">
Andika
</namerecord>
<namerecord nameID="5" platformID="3" platEncID="1" langID="0x409">
Version 6.101
</namerecord>
<namerecord nameID="6" platformID="3" platEncID="1" langID="0x409">
Andika
</namerecord>
<namerecord nameID="321" platformID="3" platEncID="1" langID="0x409">
Capital Eng
</namerecord>
<namerecord nameID="322" platformID="3" platEncID="1" langID="0x409">
Alternate forms of capital Eng
</namerecord>
<namerecord nameID="323" platformID="3" platEncID="1" langID="0x409">
Ŋ
</namerecord>
<namerecord nameID="324" platformID="3" platEncID="1" langID="0x409">
Lowercase no descender
</namerecord>
<namerecord nameID="325" platformID="3" platEncID="1" langID="0x409">
Capital form
</namerecord>
<namerecord nameID="326" platformID="3" platEncID="1" langID="0x409">
Lowercase short stem
</namerecord>
</name>
<post>
<formatType value="2.0"/>
<italicAngle value="0.0"/>
<underlinePosition value="-110"/>
<underlineThickness value="80"/>
<isFixedPitch value="0"/>
<minMemType42 value="0"/>
<maxMemType42 value="0"/>
<minMemType1 value="0"/>
<maxMemType1 value="0"/>
<psNames>
<!-- This file uses unique glyph names based on the information
found in the 'post' table. Since these names might not be unique,
we have to invent artificial names in case of clashes. In order to
be able to retain the original information, we need a name to
ps name mapping for those cases where they differ. That's what
you see below.
-->
</psNames>
<extraNames>
<!-- following are the name that are not taken from the standard Mac glyph order -->
<psName name="eng"/>
<psName name="Eng.UCStyle"/>
<psName name="Eng.BaselineHook"/>
<psName name="Eng"/>
<psName name="Eng.Kom"/>
<psName name="eng.BaselineHook.sc"/>
<psName name="eng.UCStyle.sc"/>
<psName name="eng.Kom.sc"/>
</extraNames>
</post>
<gasp>
<gaspRange rangeMaxPPEM="65535" rangeGaspBehavior="15"/>
</gasp>
<GDEF>
<Version value="0x00010000"/>
<GlyphClassDef>
<ClassDef glyph=".notdef" class="1"/>
<ClassDef glyph="Eng" class="1"/>
<ClassDef glyph="Eng.BaselineHook" class="1"/>
<ClassDef glyph="Eng.Kom" class="1"/>
<ClassDef glyph="Eng.UCStyle" class="1"/>
<ClassDef glyph="eng" class="1"/>
<ClassDef glyph="eng.BaselineHook.sc" class="1"/>
<ClassDef glyph="eng.Kom.sc" class="1"/>
<ClassDef glyph="eng.UCStyle.sc" class="1"/>
<ClassDef glyph="space" class="1"/>
</GlyphClassDef>
</GDEF>
<GSUB>
<Version value="0x00010000"/>
<ScriptList>
<!-- ScriptCount=3 -->
<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="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="cv43"/>
<Feature>
<FeatureParamsCharacterVariants Format="0">
<Format value="0"/>
<FeatUILabelNameID value="321"/> <!-- Capital Eng -->
<FeatUITooltipTextNameID value="322"/> <!-- Alternate forms of capital Eng -->
<SampleTextNameID value="323"/> <!-- Ŋ -->
<NumNamedParameters value="3"/>
<FirstParamUILabelNameID value="324"/> <!-- Lowercase no descender -->
<!-- CharCount=0 -->
</FeatureParamsCharacterVariants>
<!-- LookupCount=1 -->
<LookupListIndex index="0" value="0"/>
</Feature>
</FeatureRecord>
</FeatureList>
<LookupList>
<!-- LookupCount=1 -->
<Lookup index="0">
<LookupType value="3"/>
<LookupFlag value="0"/>
<!-- SubTableCount=1 -->
<AlternateSubst index="0">
<AlternateSet glyph="Eng">
<Alternate glyph="Eng.BaselineHook"/>
<Alternate glyph="Eng.UCStyle"/>
<Alternate glyph="Eng.Kom"/>
</AlternateSet>
</AlternateSubst>
</Lookup>
</LookupList>
</GSUB>
</ttFont>

View File

@ -2071,5 +2071,28 @@ def test_prune_unused_user_name_IDs_with_keep_all(ttf_path):
assert nameIDs == keepNameIDs assert nameIDs == keepNameIDs
def test_cvXX_feature_params_nameIDs_are_retained():
# https://github.com/fonttools/fonttools/issues/3616
font = TTFont()
ttx = pathlib.Path(__file__).parent / "data" / "Andika-Regular.subset.ttx"
font.importXML(ttx)
keepNameIDs = {n.nameID for n in font["name"].names}
options = subset.Options()
options.glyph_names = True
# that's where the FeatureParamsCharacteVariants are stored
options.layout_features.append("cv43")
subsetter = subset.Subsetter(options)
subsetter.populate(glyphs=font.getGlyphOrder())
subsetter.subset(font)
# we expect that all nameIDs are retained, including all the nameIDs
# used by the FeatureParamsCharacterVariants
nameIDs = {n.nameID for n in font["name"].names}
assert nameIDs == keepNameIDs
if __name__ == "__main__": if __name__ == "__main__":
sys.exit(unittest.main()) sys.exit(unittest.main())