Viewing github.com/alecthomas/chroma/lexers/embedded/dtd.xml

```
<lexer>
```
```
  <config>
```
```
    <name>DTD</name>
```
```
    <alias>dtd</alias>
```
```
    <filename>*.dtd</filename>
```

    <mime_type>application/xml-dtd</mime_type>

```
    <dot_all>true</dot_all>
```
```
  </config>
```
```
  <rules>
```
```
    <state name="common">
```
```
      <rule pattern="\s+">
```
```
        <token type="Text"/>
```
```
      </rule>
```
```
      <rule pattern="(%|&amp;)[^;]*;">
```
```
        <token type="NameEntity"/>
```
```
      </rule>
```
```
      <rule pattern="&lt;!--">
```
```
        <token type="Comment"/>
```
```
        <push state="comment"/>
```
```
      </rule>
```
```
      <rule pattern="[(|)*,?+]">
```
```
        <token type="Operator"/>
```
```
      </rule>
```

      <rule pattern="&#34;[^&#34;]*&#34;">

        <token type="LiteralStringDouble"/>

```
      </rule>
```

      <rule pattern="\&#39;[^\&#39;]*\&#39;">

        <token type="LiteralStringSingle"/>

```
      </rule>
```
```
    </state>
```
```
    <state name="comment">
```
```
      <rule pattern="[^-]+">
```
```
        <token type="Comment"/>
```
```
      </rule>
```
```
      <rule pattern="--&gt;">
```
```
        <token type="Comment"/>
```
```
        <pop depth="1"/>
```
```
      </rule>
```
```
      <rule pattern="-">
```
```
        <token type="Comment"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="element">
```
```
      <rule>
```
```
        <include state="common"/>
```
```
      </rule>
```

      <rule pattern="EMPTY|ANY|#PCDATA">

        <token type="KeywordConstant"/>

```
      </rule>
```

      <rule pattern="[^&gt;\s|()?+*,]+">

```
        <token type="NameTag"/>
```
```
      </rule>
```
```
      <rule pattern="&gt;">
```
```
        <token type="Keyword"/>
```
```
        <pop depth="1"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="attlist">
```
```
      <rule>
```
```
        <include state="common"/>
```
```
      </rule>
```

      <rule pattern="CDATA|IDREFS|IDREF|ID|NMTOKENS|NMTOKEN|ENTITIES|ENTITY|NOTATION">

        <token type="KeywordConstant"/>

```
      </rule>
```

      <rule pattern="#REQUIRED|#IMPLIED|#FIXED">

        <token type="KeywordConstant"/>

```
      </rule>
```

      <rule pattern="xml:space|xml:lang">

        <token type="KeywordReserved"/>

```
      </rule>
```

      <rule pattern="[^&gt;\s|()?+*,]+">

```
        <token type="NameAttribute"/>
```
```
      </rule>
```
```
      <rule pattern="&gt;">
```
```
        <token type="Keyword"/>
```
```
        <pop depth="1"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="entity">
```
```
      <rule>
```
```
        <include state="common"/>
```
```
      </rule>
```

      <rule pattern="SYSTEM|PUBLIC|NDATA">

        <token type="KeywordConstant"/>

```
      </rule>
```

      <rule pattern="[^&gt;\s|()?+*,]+">

```
        <token type="NameEntity"/>
```
```
      </rule>
```
```
      <rule pattern="&gt;">
```
```
        <token type="Keyword"/>
```
```
        <pop depth="1"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="notation">
```
```
      <rule>
```
```
        <include state="common"/>
```
```
      </rule>
```
```
      <rule pattern="SYSTEM|PUBLIC">
```

        <token type="KeywordConstant"/>

```
      </rule>
```

      <rule pattern="[^&gt;\s|()?+*,]+">

```
        <token type="NameAttribute"/>
```
```
      </rule>
```
```
      <rule pattern="&gt;">
```
```
        <token type="Keyword"/>
```
```
        <pop depth="1"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="root">
```
```
      <rule>
```
```
        <include state="common"/>
```
```
      </rule>
```

      <rule pattern="(&lt;!ELEMENT)(\s+)(\S+)">

```
        <bygroups>
```
```
          <token type="Keyword"/>
```
```
          <token type="Text"/>
```
```
          <token type="NameTag"/>
```
```
        </bygroups>
```
```
        <push state="element"/>
```
```
      </rule>
```

      <rule pattern="(&lt;!ATTLIST)(\s+)(\S+)">

```
        <bygroups>
```
```
          <token type="Keyword"/>
```
```
          <token type="Text"/>
```
```
          <token type="NameTag"/>
```
```
        </bygroups>
```
```
        <push state="attlist"/>
```
```
      </rule>
```

      <rule pattern="(&lt;!ENTITY)(\s+)(\S+)">

```
        <bygroups>
```
```
          <token type="Keyword"/>
```
```
          <token type="Text"/>
```
```
          <token type="NameEntity"/>
```
```
        </bygroups>
```
```
        <push state="entity"/>
```
```
      </rule>
```

      <rule pattern="(&lt;!NOTATION)(\s+)(\S+)">

```
        <bygroups>
```
```
          <token type="Keyword"/>
```
```
          <token type="Text"/>
```
```
          <token type="NameTag"/>
```
```
        </bygroups>
```
```
        <push state="notation"/>
```
```
      </rule>
```

      <rule pattern="(&lt;!\[)([^\[\s]+)(\s*)(\[)">

```
        <bygroups>
```
```
          <token type="Keyword"/>
```
```
          <token type="NameEntity"/>
```
```
          <token type="Text"/>
```
```
          <token type="Keyword"/>
```
```
        </bygroups>
```
```
      </rule>
```

      <rule pattern="(&lt;!DOCTYPE)(\s+)([^&gt;\s]+)">

```
        <bygroups>
```
```
          <token type="Keyword"/>
```
```
          <token type="Text"/>
```
```
          <token type="NameTag"/>
```
```
        </bygroups>
```
```
      </rule>
```
```
      <rule pattern="PUBLIC|SYSTEM">
```

        <token type="KeywordConstant"/>

```
      </rule>
```
```
      <rule pattern="[\[\]&gt;]">
```
```
        <token type="Keyword"/>
```
```
      </rule>
```
```
    </state>
```
```
  </rules>
```
```
</lexer>
```

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