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

```
<lexer>
```
```
  <config>
```
```
    <name>ucode</name>
```
```
    <filename>*.uc</filename>
```

    <mime_type>application/x.ucode</mime_type>

    <mime_type>text/x.ucode</mime_type>

```
    <dot_all>true</dot_all>
```
```
    <ensure_nl>true</ensure_nl>
```
```
  </config>
```
```
  <rules>
```
```
    <state name="interp">
```
```
      <rule pattern="`">
```

        <token type="LiteralStringBacktick"/>

```
        <pop depth="1"/>
```
```
      </rule>
```
```
      <rule pattern="\\\\">
```

        <token type="LiteralStringBacktick"/>

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

        <token type="LiteralStringBacktick"/>

```
      </rule>
```
```
      <rule pattern="\\[^`\\]">
```

        <token type="LiteralStringBacktick"/>

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

        <token type="LiteralStringInterpol"/>

```
        <push state="interp-inside"/>
```
```
      </rule>
```
```
      <rule pattern="\$">
```

        <token type="LiteralStringBacktick"/>

```
      </rule>
```
```
      <rule pattern="[^`\\$]+">
```

        <token type="LiteralStringBacktick"/>

```
      </rule>
```
```
    </state>
```
```
    <state name="interp-inside">
```
```
      <rule pattern="\}">
```

        <token type="LiteralStringInterpol"/>

```
        <pop depth="1"/>
```
```
      </rule>
```
```
      <rule>
```
```
        <include state="root"/>
```
```
      </rule>
```
```
    </state>
```

    <state name="commentsandwhitespace">

```
      <rule pattern="\s+">
```
```
        <token type="Text"/>
```
```
      </rule>
```
```
      <rule pattern="&lt;!--">
```
```
        <token type="Comment"/>
```
```
      </rule>
```
```
      <rule pattern="//.*?\n">
```
```
        <token type="CommentSingle"/>
```
```
      </rule>
```
```
      <rule pattern="/\*.*?\*/">
```

        <token type="CommentMultiline"/>

```
      </rule>
```
```
    </state>
```
```
    <state name="slashstartsregex">
```
```
      <rule>
```

        <include state="commentsandwhitespace"/>

```
      </rule>
```

      <rule pattern="/(\\.|[^[/\\\n]|\[(\\.|[^\]\\\n])*])+/([gimuy]+\b|\B)">

        <token type="LiteralStringRegex"/>

```
        <pop depth="1"/>
```
```
      </rule>
```
```
      <rule pattern="(?=/)">
```
```
        <token type="Text"/>
```

        <push state="#pop" state="badregex"/>

```
      </rule>
```
```
      <rule>
```
```
        <pop depth="1"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="badregex">
```
```
      <rule pattern="\n">
```
```
        <token type="Text"/>
```
```
        <pop depth="1"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="root">
```
```
      <rule pattern="\A#! ?/.*?\n">
```

        <token type="CommentHashbang"/>

```
      </rule>
```

      <rule pattern="^(?=\s|/|&lt;!--)">

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

        <push state="slashstartsregex"/>

```
      </rule>
```
```
      <rule>
```

        <include state="commentsandwhitespace"/>

```
      </rule>
```

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

        <token type="LiteralNumberFloat"/>

```
      </rule>
```
```
      <rule pattern="0[bB][01]+">
```

        <token type="LiteralNumberBin"/>

```
      </rule>
```
```
      <rule pattern="0[oO][0-7]+">
```

        <token type="LiteralNumberOct"/>

```
      </rule>
```

      <rule pattern="0[xX][0-9a-fA-F]+">

        <token type="LiteralNumberHex"/>

```
      </rule>
```
```
      <rule pattern="[0-9][0-9_]*">
```

        <token type="LiteralNumberInteger"/>

```
      </rule>
```
```
      <rule pattern="\.\.\.|=&gt;">
```
```
        <token type="Punctuation"/>
```
```
      </rule>
```

      <rule pattern="\+\+|--|~|&amp;&amp;|\?|:|\|\||\\(?=\n)|(&lt;&lt;|&gt;&gt;&gt;?|==?|!=?|[-&lt;&gt;+*%&amp;|^/])=?">

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

        <push state="slashstartsregex"/>

```
      </rule>
```
```
      <rule pattern="[{(\[;,]">
```
```
        <token type="Punctuation"/>
```

        <push state="slashstartsregex"/>

```
      </rule>
```
```
      <rule pattern="[})\].]">
```
```
        <token type="Punctuation"/>
```
```
      </rule>
```

      <rule pattern="(import|export|from|as|for|in|while|break|return|continue|switch|case|default|if|else|try|catch|delete|this)\b">

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

        <push state="slashstartsregex"/>

```
      </rule>
```

      <rule pattern="(const|let|function)\b">

        <token type="KeywordDeclaration"/>

        <push state="slashstartsregex"/>

```
      </rule>
```

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

        <token type="KeywordConstant"/>

```
      </rule>
```

      <rule pattern="(?:[$_\p{L}\p{N}]|\\u[a-fA-F0-9]{4})(?:(?:[$\p{L}\p{N}]|\\u[a-fA-F0-9]{4}))*">

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

      <rule pattern="&#34;(\\\\|\\&#34;|[^&#34;])*&#34;">

        <token type="LiteralStringDouble"/>

```
      </rule>
```

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

        <token type="LiteralStringSingle"/>

```
      </rule>
```
```
      <rule pattern="`">
```

        <token type="LiteralStringBacktick"/>

```
        <push state="interp"/>
```
```
      </rule>
```
```
    </state>
```
```
  </rules>
```
```
</lexer>
```

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