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

```
<lexer>
```
```
  <config>
```
```
    <name>Groovy</name>
```
```
    <alias>groovy</alias>
```
```
    <filename>*.groovy</filename>
```
```
    <filename>*.gradle</filename>
```

    <mime_type>text/x-groovy</mime_type>

```
    <dot_all>true</dot_all>
```
```
  </config>
```
```
  <rules>
```
```
    <state name="root">
```
```
      <rule pattern="#!(.*?)$">
```
```
        <token type="CommentPreproc"/>
```
```
        <push state="base"/>
```
```
      </rule>
```
```
      <rule>
```
```
        <push state="base"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="base">
```

      <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"/>

```
      </rule>
```

      <rule pattern="@[a-zA-Z_][\w.]*">

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

      <rule pattern="(as|assert|break|case|catch|continue|default|do|else|finally|for|if|in|goto|instanceof|new|return|switch|this|throw|try|while|in|as)\b">

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

      <rule pattern="(abstract|const|extends|final|implements|native|private|protected|public|static|strictfp|super|synchronized|throws|transient|volatile)\b">

        <token type="KeywordDeclaration"/>

```
      </rule>
```

      <rule pattern="(def|var|boolean|byte|char|double|float|int|long|short|void)\b">

```
        <token type="KeywordType"/>
```
```
      </rule>
```
```
      <rule pattern="(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|enum|trait|record)(\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;&#34;&#34;">

        <token type="LiteralStringDouble"/>

```
      </rule>
```

      <rule pattern="&#39;&#39;&#39;.*?&#39;&#39;&#39;">

        <token type="LiteralStringSingle"/>

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

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

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

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

        <token type="LiteralStringChar"/>

```
      </rule>
```

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

        <token type="LiteralNumberFloat"/>

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

        <token type="LiteralNumberHex"/>

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

        <token type="LiteralNumberInteger"/>

```
      </rule>
```
```
      <rule pattern="\n">
```
```
        <token type="Text"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="class">
```
```
      <rule pattern="[a-zA-Z_]\w*">
```
```
        <token type="NameClass"/>
```
```
        <pop depth="1"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="import">
```
```
      <rule pattern="[\w.]+\*?">
```
```
        <token type="NameNamespace"/>
```
```
        <pop depth="1"/>
```
```
      </rule>
```
```
    </state>
```
```
  </rules>
```
```
</lexer>
```