fonttools/Tests/feaLib/data/bug457.ttx

<?xml version="1.0" encoding="UTF-8"?>
<ttFont>

  <GSUB>
    <Version value="0x00010000"/>
    <ScriptList>
      <!-- ScriptCount=1 -->
      <ScriptRecord index="0">
        <ScriptTag value="DFLT"/>
        <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="liga"/>
        <Feature>
          <!-- LookupCount=1 -->
          <LookupListIndex index="0" value="0"/>
        </Feature>
      </FeatureRecord>
    </FeatureList>
    <LookupList>
      <!-- LookupCount=1 -->
      <Lookup index="0">
        <LookupType value="1"/>
        <LookupFlag value="0"/>
        <!-- SubTableCount=1 -->
        <SingleSubst index="0">
          <Substitution in="A" out="G"/>
          <Substitution in="by" out="G"/>
          <Substitution in="feature" out="G"/>
          <Substitution in="lookup" out="G"/>
          <Substitution in="sub" out="G"/>
          <Substitution in="table" out="G"/>
        </SingleSubst>
      </Lookup>
    </LookupList>
  </GSUB>

</ttFont>