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

```
<lexer>
```
```
  <config>
```
```
    <name>JavaScript</name>
```
```
    <alias>js</alias>
```
```
    <alias>javascript</alias>
```
```
    <filename>*.js</filename>
```
```
    <filename>*.jsm</filename>
```
```
    <filename>*.mjs</filename>
```
```
    <filename>*.cjs</filename>
```

    <mime_type>application/javascript</mime_type>

    <mime_type>application/x-javascript</mime_type>

    <mime_type>text/x-javascript</mime_type>

    <mime_type>text/javascript</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="(for|in|while|do|break|return|continue|switch|case|default|if|else|throw|try|catch|finally|new|delete|typeof|instanceof|void|yield|this|of)\b">

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

        <push state="slashstartsregex"/>

```
      </rule>
```

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

        <token type="KeywordDeclaration"/>

        <push state="slashstartsregex"/>

```
      </rule>
```

      <rule pattern="(abstract|async|await|boolean|byte|char|class|const|debugger|double|enum|export|extends|final|float|goto|implements|import|int|interface|long|native|package|private|protected|public|short|static|super|synchronized|throws|transient|volatile)\b">

        <token type="KeywordReserved"/>

```
      </rule>
```

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

        <token type="KeywordConstant"/>

```
      </rule>
```

      <rule pattern="(Array|Boolean|Date|Error|Function|Math|netscape|Number|Object|Packages|RegExp|String|Promise|Proxy|sun|decodeURI|decodeURIComponent|encodeURI|encodeURIComponent|Error|eval|isFinite|isNaN|isSafeInteger|parseFloat|parseInt|document|this|window)\b">

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