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feaLib: Test deduped multiple substitution lookups

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This commit is contained in:
David Corbett 2023-05-14 09:35:53 -04:00
parent 8b69b9412e
commit bd00fe24f1
2 changed files with 44 additions and 3 deletions
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4
Tests/feaLib/data/GSUB_2.fea
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@ -29,3 +29,7 @@ lookup l1 {
feature f5 {
sub @class' lookup l1 [i l];
} f5;
feature f6 {
sub [f_i f_i]' j by [f f] [i i];
} f6;

43
Tests/feaLib/data/GSUB_2.ttx
View File

@ -10,19 +10,20 @@
<Script>
<DefaultLangSys>
<ReqFeatureIndex value="65535"/>
<!-- FeatureCount=5 -->
<!-- FeatureCount=6 -->
<FeatureIndex index="0" value="0"/>
<FeatureIndex index="1" value="1"/>
<FeatureIndex index="2" value="2"/>
<FeatureIndex index="3" value="3"/>
<FeatureIndex index="4" value="4"/>
<FeatureIndex index="5" value="5"/>
</DefaultLangSys>
<!-- LangSysCount=0 -->
</Script>
</ScriptRecord>
</ScriptList>
<FeatureList>
<!-- FeatureCount=5 -->
<!-- FeatureCount=6 -->
<FeatureRecord index="0">
<FeatureTag value="f1 "/>
<Feature>
@ -58,9 +59,16 @@
<LookupListIndex index="0" value="5"/>
</Feature>
</FeatureRecord>
<FeatureRecord index="5">
<FeatureTag value="f6 "/>
<Feature>
<!-- LookupCount=1 -->
<LookupListIndex index="0" value="6"/>
</Feature>
</FeatureRecord>
</FeatureList>
<LookupList>
<!-- LookupCount=6 -->
<!-- LookupCount=8 -->
<Lookup index="0">
<LookupType value="2"/>
<LookupFlag value="0"/>
@ -135,6 +143,35 @@
</SubstLookupRecord>
</ChainContextSubst>
</Lookup>
<Lookup index="6">
<LookupType value="6"/>
<LookupFlag value="0"/>
<!-- SubTableCount=1 -->
<ChainContextSubst index="0" Format="3">
<!-- BacktrackGlyphCount=0 -->
<!-- InputGlyphCount=1 -->
<InputCoverage index="0">
<Glyph value="f_i"/>
</InputCoverage>
<!-- LookAheadGlyphCount=1 -->
<LookAheadCoverage index="0">
<Glyph value="j"/>
</LookAheadCoverage>
<!-- SubstCount=1 -->
<SubstLookupRecord index="0">
<SequenceIndex value="0"/>
<LookupListIndex value="7"/>
</SubstLookupRecord>
</ChainContextSubst>
</Lookup>
<Lookup index="7">
<LookupType value="2"/>
<LookupFlag value="0"/>
<!-- SubTableCount=1 -->
<MultipleSubst index="0">
<Substitution in="f_i" out="f,i"/>
</MultipleSubst>
</Lookup>
</LookupList>
</GSUB>