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

```
<lexer>
```
```
  <config>
```
```
    <name>Turtle</name>
```
```
    <alias>turtle</alias>
```
```
    <filename>*.ttl</filename>
```
```
    <mime_type>text/turtle</mime_type>
```

    <mime_type>application/x-turtle</mime_type>

    <case_insensitive>true</case_insensitive>

    <not_multiline>true</not_multiline>

```
  </config>
```
```
  <rules>
```

    <state name="triple-double-quoted-string">

```
      <rule pattern="&#34;&#34;&#34;">
```
```
        <token type="LiteralString"/>
```
```
        <push state="end-of-string"/>
```
```
      </rule>
```
```
      <rule pattern="[^\\]+">
```
```
        <token type="LiteralString"/>
```
```
      </rule>
```
```
      <rule pattern="\\">
```
```
        <token type="LiteralString"/>
```
```
        <push state="string-escape"/>
```
```
      </rule>
```
```
    </state>
```

    <state name="single-double-quoted-string">

```
      <rule pattern="&#34;">
```
```
        <token type="LiteralString"/>
```
```
        <push state="end-of-string"/>
```
```
      </rule>
```
```
      <rule pattern="[^&#34;\\\n]+">
```
```
        <token type="LiteralString"/>
```
```
      </rule>
```
```
      <rule pattern="\\">
```
```
        <token type="LiteralString"/>
```
```
        <push state="string-escape"/>
```
```
      </rule>
```
```
    </state>
```

    <state name="triple-single-quoted-string">

```
      <rule pattern="&#39;&#39;&#39;">
```
```
        <token type="LiteralString"/>
```
```
        <push state="end-of-string"/>
```
```
      </rule>
```
```
      <rule pattern="[^\\]+">
```
```
        <token type="LiteralString"/>
```
```
      </rule>
```
```
      <rule pattern="\\">
```
```
        <token type="LiteralString"/>
```
```
        <push state="string-escape"/>
```
```
      </rule>
```
```
    </state>
```

    <state name="single-single-quoted-string">

```
      <rule pattern="&#39;">
```
```
        <token type="LiteralString"/>
```
```
        <push state="end-of-string"/>
```
```
      </rule>
```
```
      <rule pattern="[^&#39;\\\n]+">
```
```
        <token type="LiteralString"/>
```
```
      </rule>
```
```
      <rule pattern="\\">
```
```
        <token type="LiteralString"/>
```
```
        <push state="string-escape"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="string-escape">
```
```
      <rule pattern=".">
```
```
        <token type="LiteralString"/>
```
```
        <pop depth="1"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="end-of-string">
```

      <rule pattern="(@)([a-z]+(:?-[a-z0-9]+)*)">

```
        <bygroups>
```
```
          <token type="Operator"/>
```
```
          <token type="GenericEmph"/>
```
```
          <token type="GenericEmph"/>
```
```
        </bygroups>
```
```
        <pop depth="2"/>
```
```
      </rule>
```

      <rule pattern="(\^\^)(&lt;[^&lt;&gt;&#34;{}|^`\\\x00-\x20]*&gt;)">

```
        <bygroups>
```
```
          <token type="Operator"/>
```
```
          <token type="GenericEmph"/>
```
```
        </bygroups>
```
```
        <pop depth="2"/>
```
```
      </rule>
```

      <rule pattern="(\^\^)((?:[a-z][\w-]*)?\:)([a-z][\w-]*)">

```
        <bygroups>
```
```
          <token type="Operator"/>
```
```
          <token type="GenericEmph"/>
```
```
          <token type="GenericEmph"/>
```
```
        </bygroups>
```
```
        <pop depth="2"/>
```
```
      </rule>
```
```
      <rule>
```
```
        <pop depth="2"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="root">
```
```
      <rule pattern="\s+">
```
```
        <token type="TextWhitespace"/>
```
```
      </rule>
```

      <rule pattern="(@base|BASE)(\s+)(&lt;[^&lt;&gt;&#34;{}|^`\\\x00-\x20]*&gt;)(\s*)(\.?)">

```
        <bygroups>
```
```
          <token type="Keyword"/>
```

          <token type="TextWhitespace"/>

```
          <token type="NameVariable"/>
```

          <token type="TextWhitespace"/>

```
          <token type="Punctuation"/>
```
```
        </bygroups>
```
```
      </rule>
```

      <rule pattern="(@prefix|PREFIX)(\s+)((?:[a-z][\w-]*)?\:)(\s+)(&lt;[^&lt;&gt;&#34;{}|^`\\\x00-\x20]*&gt;)(\s*)(\.?)">

```
        <bygroups>
```
```
          <token type="Keyword"/>
```

          <token type="TextWhitespace"/>

          <token type="NameNamespace"/>

          <token type="TextWhitespace"/>

```
          <token type="NameVariable"/>
```

          <token type="TextWhitespace"/>

```
          <token type="Punctuation"/>
```
```
        </bygroups>
```
```
      </rule>
```

      <rule pattern="(?&lt;=\s)a(?=\s)">

```
        <token type="KeywordType"/>
```
```
      </rule>
```

      <rule pattern="(&lt;[^&lt;&gt;&#34;{}|^`\\\x00-\x20]*&gt;)">

```
        <token type="NameVariable"/>
```
```
      </rule>
```

      <rule pattern="((?:[a-z][\w-]*)?\:)([a-z][\w-]*)">

```
        <bygroups>
```

          <token type="NameNamespace"/>

```
          <token type="NameTag"/>
```
```
        </bygroups>
```
```
      </rule>
```
```
      <rule pattern="#[^\n]+">
```
```
        <token type="Comment"/>
```
```
      </rule>
```

      <rule pattern="\b(true|false)\b">

```
        <token type="Literal"/>
```
```
      </rule>
```
```
      <rule pattern="[+\-]?\d*\.\d+">
```

        <token type="LiteralNumberFloat"/>

```
      </rule>
```

      <rule pattern="[+\-]?\d*(:?\.\d+)?E[+\-]?\d+">

        <token type="LiteralNumberFloat"/>

```
      </rule>
```
```
      <rule pattern="[+\-]?\d+">
```

        <token type="LiteralNumberInteger"/>

```
      </rule>
```
```
      <rule pattern="[\[\](){}.;,:^]">
```
```
        <token type="Punctuation"/>
```
```
      </rule>
```
```
      <rule pattern="&#34;&#34;&#34;">
```
```
        <token type="LiteralString"/>
```

        <push state="triple-double-quoted-string"/>

```
      </rule>
```
```
      <rule pattern="&#34;">
```
```
        <token type="LiteralString"/>
```

        <push state="single-double-quoted-string"/>

```
      </rule>
```
```
      <rule pattern="&#39;&#39;&#39;">
```
```
        <token type="LiteralString"/>
```

        <push state="triple-single-quoted-string"/>

```
      </rule>
```
```
      <rule pattern="&#39;">
```
```
        <token type="LiteralString"/>
```

        <push state="single-single-quoted-string"/>

```
      </rule>
```
```
    </state>
```
```
  </rules>
```
```
</lexer>
```

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