Tests/feaLib/data/GSUB_8.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="test"/>
        <Feature>
          <!-- LookupCount=1 -->
          <LookupListIndex index="0" value="0"/>
        </Feature>
      </FeatureRecord>
    </FeatureList>
    <LookupList>
      <!-- LookupCount=1 -->
      <Lookup index="0">
        <LookupType value="8"/>
        <LookupFlag value="0"/>
        <!-- SubTableCount=3 -->
        <ReverseChainSingleSubst index="0" Format="1">
          <Coverage>
            <Glyph value="q"/>
          </Coverage>
          <!-- BacktrackGlyphCount=3 -->
          <BacktrackCoverage index="0">
            <Glyph value="C"/>
            <Glyph value="c"/>
          </BacktrackCoverage>
          <BacktrackCoverage index="1">
            <Glyph value="B"/>
            <Glyph value="b"/>
          </BacktrackCoverage>
          <BacktrackCoverage index="2">
            <Glyph value="A"/>
            <Glyph value="a"/>
          </BacktrackCoverage>
          <!-- LookAheadGlyphCount=3 -->
          <LookAheadCoverage index="0">
            <Glyph value="D"/>
            <Glyph value="d"/>
          </LookAheadCoverage>
          <LookAheadCoverage index="1">
            <Glyph value="E"/>
            <Glyph value="e"/>
          </LookAheadCoverage>
          <LookAheadCoverage index="2">
            <Glyph value="F"/>
            <Glyph value="f"/>
          </LookAheadCoverage>
          <!-- GlyphCount=1 -->
          <Substitute index="0" value="Q"/>
        </ReverseChainSingleSubst>
        <ReverseChainSingleSubst index="1" Format="1">
          <Coverage>
            <Glyph value="s"/>
            <Glyph value="t"/>
            <Glyph value="u"/>
            <Glyph value="v"/>
            <Glyph value="w"/>
            <Glyph value="x"/>
            <Glyph value="y"/>
            <Glyph value="z"/>
          </Coverage>
          <!-- BacktrackGlyphCount=3 -->
          <BacktrackCoverage index="0">
            <Glyph value="C"/>
            <Glyph value="c"/>
          </BacktrackCoverage>
          <BacktrackCoverage index="1">
            <Glyph value="B"/>
            <Glyph value="b"/>
          </BacktrackCoverage>
          <BacktrackCoverage index="2">
            <Glyph value="A"/>
            <Glyph value="a"/>
          </BacktrackCoverage>
          <!-- LookAheadGlyphCount=3 -->
          <LookAheadCoverage index="0">
            <Glyph value="D"/>
            <Glyph value="d"/>
          </LookAheadCoverage>
          <LookAheadCoverage index="1">
            <Glyph value="E"/>
            <Glyph value="e"/>
          </LookAheadCoverage>
          <LookAheadCoverage index="2">
            <Glyph value="F"/>
            <Glyph value="f"/>
          </LookAheadCoverage>
          <!-- GlyphCount=8 -->
          <Substitute index="0" value="S"/>
          <Substitute index="1" value="T"/>
          <Substitute index="2" value="U"/>
          <Substitute index="3" value="V"/>
          <Substitute index="4" value="W"/>
          <Substitute index="5" value="X"/>
          <Substitute index="6" value="Y"/>
          <Substitute index="7" value="Z"/>
        </ReverseChainSingleSubst>
        <ReverseChainSingleSubst index="2" Format="1">
          <Coverage>
            <Glyph value="p"/>
          </Coverage>
          <!-- BacktrackGlyphCount=0 -->
          <!-- LookAheadGlyphCount=0 -->
          <!-- GlyphCount=1 -->
          <Substitute index="0" value="P"/>
        </ReverseChainSingleSubst>
      </Lookup>
    </LookupList>
  </GSUB>

</ttFont>