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

```
<lexer>
```
```
  <config>
```
```
    <name>Elm</name>
```
```
    <alias>elm</alias>
```
```
    <filename>*.elm</filename>
```
```
    <mime_type>text/x-elm</mime_type>
```
```
  </config>
```
```
  <rules>
```
```
    <state name="shader">
```
```
      <rule pattern="\|(?!\])">
```
```
        <token type="NameEntity"/>
```
```
      </rule>
```
```
      <rule pattern="\|\]">
```
```
        <token type="NameEntity"/>
```
```
        <pop depth="1"/>
```
```
      </rule>
```
```
      <rule pattern=".*\n">
```
```
        <token type="NameEntity"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="root">
```
```
      <rule pattern="\{-">
```

        <token type="CommentMultiline"/>

```
        <push state="comment"/>
```
```
      </rule>
```
```
      <rule pattern="--.*">
```
```
        <token type="CommentSingle"/>
```
```
      </rule>
```
```
      <rule pattern="\s+">
```
```
        <token type="Text"/>
```
```
      </rule>
```
```
      <rule pattern="&#34;">
```
```
        <token type="LiteralString"/>
```
```
        <push state="doublequote"/>
```
```
      </rule>
```
```
      <rule pattern="^\s*module\s*">
```

        <token type="KeywordNamespace"/>

```
        <push state="imports"/>
```
```
      </rule>
```
```
      <rule pattern="^\s*import\s*">
```

        <token type="KeywordNamespace"/>

```
        <push state="imports"/>
```
```
      </rule>
```
```
      <rule pattern="\[glsl\|.*">
```
```
        <token type="NameEntity"/>
```
```
        <push state="shader"/>
```
```
      </rule>
```

      <rule pattern="(import|module|alias|where|port|else|type|case|then|let|as|of|if|in)\b">

        <token type="KeywordReserved"/>

```
      </rule>
```
```
      <rule pattern="[A-Z]\w*">
```
```
        <token type="KeywordType"/>
```
```
      </rule>
```
```
      <rule pattern="^main ">
```

        <token type="KeywordReserved"/>

```
      </rule>
```

      <rule pattern="\((&lt;-|\|\||\|&gt;|&amp;&amp;|\+\+|-&gt;|\.\.|//|&gt;&gt;|&gt;=|/=|==|::|&lt;~|&lt;\||&lt;=|&lt;&lt;|~|&lt;|=|:|&gt;|&#39;|/|\\|\.|\^|-|`|\+|\*|\||%)\)">

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

      <rule pattern="(&lt;-|\|\||\|&gt;|&amp;&amp;|\+\+|-&gt;|\.\.|//|&gt;&gt;|&gt;=|/=|==|::|&lt;~|&lt;\||&lt;=|&lt;&lt;|~|&lt;|=|:|&gt;|&#39;|/|\\|\.|\^|-|`|\+|\*|\||%)">

```
        <token type="NameFunction"/>
```
```
      </rule>
```
```
      <rule>
```
```
        <include state="numbers"/>
```
```
      </rule>
```

      <rule pattern="[a-z_][a-zA-Z_\&#39;]*">

```
        <token type="NameVariable"/>
```
```
      </rule>
```
```
      <rule pattern="[,()\[\]{}]">
```
```
        <token type="Punctuation"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="comment">
```
```
      <rule pattern="-(?!\})">
```

        <token type="CommentMultiline"/>

```
      </rule>
```
```
      <rule pattern="\{-">
```

        <token type="CommentMultiline"/>

```
        <push state="comment"/>
```
```
      </rule>
```
```
      <rule pattern="[^-}]">
```

        <token type="CommentMultiline"/>

```
      </rule>
```
```
      <rule pattern="-\}">
```

        <token type="CommentMultiline"/>

```
        <pop depth="1"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="doublequote">
```

      <rule pattern="\\u[0-9a-fA-F]{4}">

        <token type="LiteralStringEscape"/>

```
      </rule>
```

      <rule pattern="\\[nrfvb\\&#34;]">

        <token type="LiteralStringEscape"/>

```
      </rule>
```
```
      <rule pattern="[^&#34;]">
```
```
        <token type="LiteralString"/>
```
```
      </rule>
```
```
      <rule pattern="&#34;">
```
```
        <token type="LiteralString"/>
```
```
        <pop depth="1"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="imports">
```
```
      <rule pattern="\w+(\.\w+)*">
```
```
        <token type="NameClass"/>
```
```
        <pop depth="1"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="numbers">
```
```
      <rule pattern="_?\d+\.(?=\d+)">
```

        <token type="LiteralNumberFloat"/>

```
      </rule>
```
```
      <rule pattern="_?\d+">
```

        <token type="LiteralNumberInteger"/>

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