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

```
<lexer>
```
```
  <config>
```
```
    <name>Ceylon</name>
```
```
    <alias>ceylon</alias>
```
```
    <filename>*.ceylon</filename>
```

    <mime_type>text/x-ceylon</mime_type>

```
    <dot_all>true</dot_all>
```
```
  </config>
```
```
  <rules>
```
```
    <state name="class">
```
```
      <rule pattern="[A-Za-z_]\w*">
```
```
        <token type="NameClass"/>
```
```
        <pop depth="1"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="import">
```
```
      <rule pattern="[a-z][\w.]*">
```
```
        <token type="NameNamespace"/>
```
```
        <pop depth="1"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="comment">
```
```
      <rule pattern="[^*/]">
```

        <token type="CommentMultiline"/>

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

        <token type="CommentMultiline"/>

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

        <token type="CommentMultiline"/>

```
        <pop depth="1"/>
```
```
      </rule>
```
```
      <rule pattern="[*/]">
```

        <token type="CommentMultiline"/>

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

      <rule pattern="^(\s*(?:[a-zA-Z_][\w.\[\]]*\s+)+?)([a-zA-Z_]\w*)(\s*)(\()">

```
        <bygroups>
```
```
          <usingself state="root"/>
```
```
          <token type="NameFunction"/>
```
```
          <token type="Text"/>
```
```
          <token type="Operator"/>
```
```
        </bygroups>
```
```
      </rule>
```
```
      <rule pattern="[^\S\n]+">
```
```
        <token type="Text"/>
```
```
      </rule>
```
```
      <rule pattern="//.*?\n">
```
```
        <token type="CommentSingle"/>
```
```
      </rule>
```
```
      <rule pattern="/\*">
```

        <token type="CommentMultiline"/>

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

      <rule pattern="(shared|abstract|formal|default|actual|variable|deprecated|small|late|literal|doc|by|see|throws|optional|license|tagged|final|native|annotation|sealed)\b">

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

      <rule pattern="(break|case|catch|continue|else|finally|for|in|if|return|switch|this|throw|try|while|is|exists|dynamic|nonempty|then|outer|assert|let)\b">

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

      <rule pattern="(abstracts|extends|satisfies|super|given|of|out|assign)\b">

        <token type="KeywordDeclaration"/>

```
      </rule>
```

      <rule pattern="(function|value|void|new)\b">

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

      <rule pattern="(assembly|module|package)(\s+)">

```
        <bygroups>
```

          <token type="KeywordNamespace"/>

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

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

        <token type="KeywordConstant"/>

```
      </rule>
```

      <rule pattern="(class|interface|object|alias)(\s+)">

```
        <bygroups>
```

          <token type="KeywordDeclaration"/>

```
          <token type="Text"/>
```
```
        </bygroups>
```
```
        <push state="class"/>
```
```
      </rule>
```
```
      <rule pattern="(import)(\s+)">
```
```
        <bygroups>
```

          <token type="KeywordNamespace"/>

```
          <token type="Text"/>
```
```
        </bygroups>
```
```
        <push state="import"/>
```
```
      </rule>
```

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

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

      <rule pattern="&#39;\\.&#39;|&#39;[^\\]&#39;|&#39;\\\{#[0-9a-fA-F]{4}\}&#39;">

        <token type="LiteralStringChar"/>

```
      </rule>
```

      <rule pattern="&#34;.*``.*``.*&#34;">

        <token type="LiteralStringInterpol"/>

```
      </rule>
```
```
      <rule pattern="(\.)([a-z_]\w*)">
```
```
        <bygroups>
```
```
          <token type="Operator"/>
```

          <token type="NameAttribute"/>

```
        </bygroups>
```
```
      </rule>
```
```
      <rule pattern="[a-zA-Z_]\w*:">
```
```
        <token type="NameLabel"/>
```
```
      </rule>
```
```
      <rule pattern="[a-zA-Z_]\w*">
```
```
        <token type="Name"/>
```
```
      </rule>
```

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

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

      <rule pattern="\d{1,3}(_\d{3})+\.\d{1,3}(_\d{3})+[kMGTPmunpf]?">

        <token type="LiteralNumberFloat"/>

```
      </rule>
```

      <rule pattern="\d{1,3}(_\d{3})+\.[0-9]+([eE][+-]?[0-9]+)?[kMGTPmunpf]?">

        <token type="LiteralNumberFloat"/>

```
      </rule>
```

      <rule pattern="[0-9][0-9]*\.\d{1,3}(_\d{3})+[kMGTPmunpf]?">

        <token type="LiteralNumberFloat"/>

```
      </rule>
```

      <rule pattern="[0-9][0-9]*\.[0-9]+([eE][+-]?[0-9]+)?[kMGTPmunpf]?">

        <token type="LiteralNumberFloat"/>

```
      </rule>
```

      <rule pattern="#([0-9a-fA-F]{4})(_[0-9a-fA-F]{4})+">

        <token type="LiteralNumberHex"/>

```
      </rule>
```
```
      <rule pattern="#[0-9a-fA-F]+">
```

        <token type="LiteralNumberHex"/>

```
      </rule>
```

      <rule pattern="\$([01]{4})(_[01]{4})+">

        <token type="LiteralNumberBin"/>

```
      </rule>
```
```
      <rule pattern="\$[01]+">
```

        <token type="LiteralNumberBin"/>

```
      </rule>
```

      <rule pattern="\d{1,3}(_\d{3})+[kMGTP]?">

        <token type="LiteralNumberInteger"/>

```
      </rule>
```
```
      <rule pattern="[0-9]+[kMGTP]?">
```

        <token type="LiteralNumberInteger"/>

```
      </rule>
```
```
      <rule pattern="\n">
```
```
        <token type="Text"/>
```
```
      </rule>
```
```
    </state>
```
```
  </rules>
```
```
</lexer>
```