bd6bea0f7f
After this change, feaLib generates the exact same output as makeotf for the test case in `bug453.fea`. Before this change, feaLib had rejected the input as malformed. Our new behavior is in blatant violation of the OpenType Feature File Syntax specification, which writes: "NOTE! If a GDEF table is not explicitly defined in the feature file, [...] all mark glyph classes must be disjoint". However: 1. makeotf does not enforce this constraint; 2. existing feature files happily define non-disjoint markClasses; 3. existing tools such as the Glyphs font editor generate feature files with non-disjoint markClasses; 4. it is not obvious what the intention of this constraint would be. Therefore, fewLib now follows the makeotf implementation, intentionally ignoring what is mandated by the specification. I've proposed a spec change at https://github.com/adobe-type-tools/afdko/issues/106. Resolves https://github.com/behdad/fonttools/issues/453.
111 lines
3.1 KiB
XML
111 lines
3.1 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<ttFont sfntVersion="true" ttLibVersion="3.0">
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<GDEF>
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<Version value="1.0"/>
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<GlyphClassDef>
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<ClassDef glyph="acute" class="3"/>
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<ClassDef glyph="e" class="1"/>
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</GlyphClassDef>
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</GDEF>
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<GPOS>
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<Version value="1.0"/>
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<ScriptList>
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<!-- ScriptCount=1 -->
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<ScriptRecord index="0">
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<ScriptTag value="DFLT"/>
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<Script>
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<DefaultLangSys>
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<ReqFeatureIndex value="65535"/>
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<!-- FeatureCount=1 -->
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<FeatureIndex index="0" value="0"/>
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</DefaultLangSys>
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<!-- LangSysCount=0 -->
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</Script>
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</ScriptRecord>
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</ScriptList>
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<FeatureList>
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<!-- FeatureCount=1 -->
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<FeatureRecord index="0">
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<FeatureTag value="mark"/>
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<Feature>
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<!-- LookupCount=2 -->
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<LookupListIndex index="0" value="0"/>
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<LookupListIndex index="1" value="1"/>
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</Feature>
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</FeatureRecord>
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</FeatureList>
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<LookupList>
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<!-- LookupCount=2 -->
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<Lookup index="0">
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<!-- LookupType=4 -->
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<LookupFlag value="0"/>
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<!-- SubTableCount=1 -->
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<MarkBasePos index="0" Format="1">
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<MarkCoverage>
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<Glyph value="acute"/>
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</MarkCoverage>
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<BaseCoverage>
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<Glyph value="e"/>
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</BaseCoverage>
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<!-- ClassCount=1 -->
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<MarkArray>
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<!-- MarkCount=1 -->
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<MarkRecord index="0">
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<Class value="0"/>
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<MarkAnchor Format="1">
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<XCoordinate value="150"/>
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<YCoordinate value="-10"/>
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</MarkAnchor>
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</MarkRecord>
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</MarkArray>
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<BaseArray>
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<!-- BaseCount=1 -->
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<BaseRecord index="0">
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<BaseAnchor index="0" Format="1">
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<XCoordinate value="250"/>
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<YCoordinate value="450"/>
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</BaseAnchor>
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</BaseRecord>
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</BaseArray>
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</MarkBasePos>
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</Lookup>
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<Lookup index="1">
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<!-- LookupType=4 -->
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<LookupFlag value="0"/>
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<!-- SubTableCount=1 -->
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<MarkBasePos index="0" Format="1">
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<MarkCoverage>
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<Glyph value="acute"/>
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</MarkCoverage>
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<BaseCoverage>
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<Glyph value="e"/>
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</BaseCoverage>
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<!-- ClassCount=1 -->
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<MarkArray>
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<!-- MarkCount=1 -->
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<MarkRecord index="0">
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<Class value="0"/>
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<MarkAnchor Format="1">
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<XCoordinate value="150"/>
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<YCoordinate value="-20"/>
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</MarkAnchor>
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</MarkRecord>
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</MarkArray>
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<BaseArray>
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<!-- BaseCount=1 -->
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<BaseRecord index="0">
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<BaseAnchor index="0" Format="1">
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<XCoordinate value="250"/>
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<YCoordinate value="450"/>
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</BaseAnchor>
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</BaseRecord>
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</BaseArray>
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</MarkBasePos>
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</Lookup>
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</LookupList>
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</GPOS>
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</ttFont>
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