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

```
<lexer>
```
```
  <config>
```
```
    <name>FSharp</name>
```
```
    <alias>fsharp</alias>
```
```
    <filename>*.fs</filename>
```
```
    <filename>*.fsi</filename>
```

    <mime_type>text/x-fsharp</mime_type>

```
  </config>
```
```
  <rules>
```
```
    <state name="comment">
```
```
      <rule pattern="[^(*)@&#34;]+">
```
```
        <token type="Comment"/>
```
```
      </rule>
```
```
      <rule pattern="\(\*">
```
```
        <token type="Comment"/>
```
```
        <push/>
```
```
      </rule>
```
```
      <rule pattern="\*\)">
```
```
        <token type="Comment"/>
```
```
        <pop depth="1"/>
```
```
      </rule>
```
```
      <rule pattern="@&#34;">
```
```
        <token type="LiteralString"/>
```
```
        <push state="lstring"/>
```
```
      </rule>
```
```
      <rule pattern="&#34;&#34;&#34;">
```
```
        <token type="LiteralString"/>
```
```
        <push state="tqs"/>
```
```
      </rule>
```
```
      <rule pattern="&#34;">
```
```
        <token type="LiteralString"/>
```
```
        <push state="string"/>
```
```
      </rule>
```
```
      <rule pattern="[(*)@]">
```
```
        <token type="Comment"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="string">
```
```
      <rule pattern="[^\\&#34;]+">
```
```
        <token type="LiteralString"/>
```
```
      </rule>
```
```
      <rule>
```

        <include state="escape-sequence"/>

```
      </rule>
```
```
      <rule pattern="\\\n">
```
```
        <token type="LiteralString"/>
```
```
      </rule>
```
```
      <rule pattern="\n">
```
```
        <token type="LiteralString"/>
```
```
      </rule>
```
```
      <rule pattern="&#34;B?">
```
```
        <token type="LiteralString"/>
```
```
        <pop depth="1"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="lstring">
```
```
      <rule pattern="[^&#34;]+">
```
```
        <token type="LiteralString"/>
```
```
      </rule>
```
```
      <rule pattern="\n">
```
```
        <token type="LiteralString"/>
```
```
      </rule>
```
```
      <rule pattern="&#34;&#34;">
```
```
        <token type="LiteralString"/>
```
```
      </rule>
```
```
      <rule pattern="&#34;B?">
```
```
        <token type="LiteralString"/>
```
```
        <pop depth="1"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="tqs">
```
```
      <rule pattern="[^&#34;]+">
```
```
        <token type="LiteralString"/>
```
```
      </rule>
```
```
      <rule pattern="\n">
```
```
        <token type="LiteralString"/>
```
```
      </rule>
```

      <rule pattern="&#34;&#34;&#34;B?">

```
        <token type="LiteralString"/>
```
```
        <pop depth="1"/>
```
```
      </rule>
```
```
      <rule pattern="&#34;">
```
```
        <token type="LiteralString"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="escape-sequence">
```

      <rule pattern="\\[\\&#34;\&#39;ntbrafv]">

        <token type="LiteralStringEscape"/>

```
      </rule>
```
```
      <rule pattern="\\[0-9]{3}">
```

        <token type="LiteralStringEscape"/>

```
      </rule>
```

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

        <token type="LiteralStringEscape"/>

```
      </rule>
```

      <rule pattern="\\U[0-9a-fA-F]{8}">

        <token type="LiteralStringEscape"/>

```
      </rule>
```
```
    </state>
```
```
    <state name="root">
```
```
      <rule pattern="\s+">
```
```
        <token type="Text"/>
```
```
      </rule>
```
```
      <rule pattern="\(\)|\[\]">
```

        <token type="NameBuiltinPseudo"/>

```
      </rule>
```

      <rule pattern="\b(?&lt;!\.)([A-Z][\w\&#39;]*)(?=\s*\.)">

```
        <token type="NameNamespace"/>
```
```
        <push state="dotted"/>
```
```
      </rule>
```

      <rule pattern="\b([A-Z][\w\&#39;]*)">

```
        <token type="Name"/>
```
```
      </rule>
```
```
      <rule pattern="///.*?\n">
```

        <token type="LiteralStringDoc"/>

```
      </rule>
```
```
      <rule pattern="//.*?\n">
```
```
        <token type="CommentSingle"/>
```
```
      </rule>
```
```
      <rule pattern="\(\*(?!\))">
```
```
        <token type="Comment"/>
```
```
        <push state="comment"/>
```
```
      </rule>
```
```
      <rule pattern="@&#34;">
```
```
        <token type="LiteralString"/>
```
```
        <push state="lstring"/>
```
```
      </rule>
```
```
      <rule pattern="&#34;&#34;&#34;">
```
```
        <token type="LiteralString"/>
```
```
        <push state="tqs"/>
```
```
      </rule>
```
```
      <rule pattern="&#34;">
```
```
        <token type="LiteralString"/>
```
```
        <push state="string"/>
```
```
      </rule>
```

      <rule pattern="\b(open type|open|module)(\s+)([\w.]+)">

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

          <token type="NameNamespace"/>

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

      <rule pattern="\b(let!?)(\s+)(\w+)">

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

      <rule pattern="\b(type)(\s+)(\w+)">

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

      <rule pattern="\b(member|override)(\s+)(\w+)(\.)(\w+)">

```
        <bygroups>
```
```
          <token type="Keyword"/>
```
```
          <token type="Text"/>
```
```
          <token type="Name"/>
```
```
          <token type="Punctuation"/>
```
```
          <token type="NameFunction"/>
```
```
        </bygroups>
```
```
      </rule>
```

      <rule pattern="\b(abstract|as|assert|base|begin|class|default|delegate|do!|do|done|downcast|downto|elif|else|end|exception|extern|false|finally|for|function|fun|global|if|inherit|inline|interface|internal|in|lazy|let!|let|match|member|module|mutable|namespace|new|null|of|open|override|private|public|rec|return!|return|select|static|struct|then|to|true|try|type|upcast|use!|use|val|void|when|while|with|yield!|yield|atomic|break|checked|component|const|constraint|constructor|continue|eager|event|external|fixed|functor|include|method|mixin|object|parallel|process|protected|pure|sealed|tailcall|trait|virtual|volatile)\b">

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

      <rule pattern="``([^`\n\r\t]|`[^`\n\r\t])+``">

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

      <rule pattern="#[ \t]*(if|endif|else|line|nowarn|light|r|\d+)\b">

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

      <rule pattern="(!=|#|&amp;&amp;|&amp;|\(|\)|\*|\+|,|-\.|-&gt;|-|\.\.|\.|::|:=|:&gt;|:|;;|;|&lt;-|&lt;\]|&lt;|&gt;\]|&gt;|\?\?|\?|\[&lt;|\[\||\[|\]|_|`|\{|\|\]|\||\}|~|&lt;@@|&lt;@|=|@&gt;|@@&gt;)">

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

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

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

      <rule pattern="\b(and|or|not)\b">

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

      <rule pattern="\b(sbyte|byte|char|nativeint|unativeint|float32|single|float|double|int8|uint8|int16|uint16|int32|uint32|int64|uint64|decimal|unit|bool|string|list|exn|obj|enum)\b">

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

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

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

      <rule pattern="\d[\d_]*[uU]?[yslLnQRZINGmM]?">

        <token type="LiteralNumberInteger"/>

```
      </rule>
```

      <rule pattern="0[xX][\da-fA-F][\da-fA-F_]*[uU]?[yslLn]?[fF]?">

        <token type="LiteralNumberHex"/>

```
      </rule>
```

      <rule pattern="0[oO][0-7][0-7_]*[uU]?[yslLn]?">

        <token type="LiteralNumberOct"/>

```
      </rule>
```

      <rule pattern="0[bB][01][01_]*[uU]?[yslLn]?">

        <token type="LiteralNumberBin"/>

```
      </rule>
```

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

        <token type="LiteralNumberFloat"/>

```
      </rule>
```

      <rule pattern="&#39;(?:(\\[\\\&#34;&#39;ntbr ])|(\\[0-9]{3})|(\\x[0-9a-fA-F]{2}))&#39;B?">

        <token type="LiteralStringChar"/>

```
      </rule>
```
```
      <rule pattern="&#39;.&#39;">
```

        <token type="LiteralStringChar"/>

```
      </rule>
```
```
      <rule pattern="&#39;">
```
```
        <token type="Keyword"/>
```
```
      </rule>
```
```
      <rule pattern="@?&#34;">
```

        <token type="LiteralStringDouble"/>

```
        <push state="string"/>
```
```
      </rule>
```

      <rule pattern="[~?][a-z][\w\&#39;]*:">

```
        <token type="NameVariable"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="dotted">
```
```
      <rule pattern="\s+">
```
```
        <token type="Text"/>
```
```
      </rule>
```
```
      <rule pattern="\.">
```
```
        <token type="Punctuation"/>
```
```
      </rule>
```

      <rule pattern="[A-Z][\w\&#39;]*(?=\s*\.)">

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

      <rule pattern="[A-Z][\w\&#39;]*">

```
        <token type="Name"/>
```
```
        <pop depth="1"/>
```
```
      </rule>
```

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

```
        <token type="Name"/>
```
```
        <pop depth="1"/>
```
```
      </rule>
```
```
      <rule>
```
```
        <pop depth="1"/>
```
```
      </rule>
```
```
    </state>
```
```
  </rules>
```
```
</lexer>
```