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

```
<lexer>
```
```
  <config>
```
```
    <name>PSL</name>
```
```
    <alias>psl</alias>
```
```
    <filename>*.psl</filename>
```
```
    <filename>*.BATCH</filename>
```
```
    <filename>*.TRIG</filename>
```
```
    <filename>*.PROC</filename>
```
```
    <mime_type>text/x-psl</mime_type>
```
```
  </config>
```
```
  <rules>
```
```
  
```
```
    <state name="root">
```
```
      <rule pattern="[^\S\n]+">
```
```
        <token type="Text"/>
```
```
      </rule>
```
```
      <rule pattern="\\\n">
```
```
        <token type="Text"/>
```
```
      </rule>
```
```
      <rule pattern="\n">
```
```
        <token type="Text"/>
```
```
      </rule>
```
```
      <rule pattern="//.*$">
```
```
        <token type="CommentSingle"/>
```
```
      </rule>
```

      <rule pattern="/(\\\n)?[*](.|\n)*?[*](\\\n)?/">

        <token type="CommentMultiline"/>

```
      </rule>
```

      <rule pattern="\+|-|\*|\/|\b%\b|&lt;|&gt;|=|'|\band\b|\bor\b|_|:|!">

```
        <token type="Operator"/>
```
```
      </rule>
```
```
      <rule pattern="[{}(,)\[\]]">
```
```
        <token type="Punctuation"/>
```
```
        <push state="root"/>
```
```
      </rule>
```
```
      <rule pattern="#">
```
```
        <token type="KeywordPseudo"/>
```
```
        <push state="directive"/>
```
```
      </rule>
```
```
      <rule pattern="\.?\d+">
```
```
        <token type="LiteralNumber"/>
```
```
      </rule>
```
```
      <rule pattern="&quot;">
```
```
        <token type="LiteralString"/>
```
```
        <push state="string"/>
```
```
      </rule>
```

      <rule pattern="\b(do|set|if|else|for|while|quit|catch|return|ret|while)\b">

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

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

        <token type="KeywordConstant"/>

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

        <token type="KeywordDeclaration"/>

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

      <rule pattern="\b(public|req|private|void)\b">

        <token type="KeywordDeclaration"/>

```
      </rule>
```

      <rule pattern="\b(Boolean|String|Number|Date)\b">

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

      <rule pattern="(\${0,2}[_a-zA-z]\w*)?(\^[_a-zA-Z]\w*)">

```
        <bygroups>
```
```
          <token type="NameFunction"/>
```
```
          <token type="NameClass"/>
```
```
        </bygroups>
```
```
      </rule>
```

      <rule pattern="([_a-zA-z]\w*)(\.[_a-zA-Z]\w*)(\()">

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

      <rule pattern="(\${0,2}[_a-zA-z]\w*)(\.[_a-zA-Z]\w*)">

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

      <rule pattern="\.?(%|\${0,2})[_a-zA-Z]\w*">

```
        <token type="Name"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="string">
```
```
      <rule pattern="&quot;">
```
```
        <token type="LiteralString"/>
```
```
        <pop depth="1"/>
```
```
      </rule>
```

      <rule pattern="\\([\\abfnrtv&quot;\&#x27;]|x[a-fA-F0-9]{2,4}|u[a-fA-F0-9]{4}|U[a-fA-F0-9]{8}|[0-7]{1,3})">

        <token type="LiteralStringEscape"/>

```
      </rule>
```
```
      <rule pattern="[^\\&quot;\n]+">
```
```
        <token type="LiteralString"/>
```
```
      </rule>
```
```
      <rule pattern="\\\n">
```
```
        <token type="LiteralString"/>
```
```
      </rule>
```
```
      <rule pattern="\\">
```
```
        <token type="LiteralString"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="typename">
```
```
      <rule pattern="\s+">
```
```
        <token type="Text"/>
```
```
      </rule>
```

      <rule pattern="\b(public|req|private|void)\b">

        <token type="KeywordDeclaration"/>

```
      </rule>
```

      <rule pattern="([_a-zA-Z]\w*)?(\s+)([_a-zA-Z]\w*)">

```
        <bygroups>
```
```
          <token type="NameClass"/>
```
```
          <token type="Text"/>
```
```
          <token type="Name"/>
```
```
        </bygroups>
```
```
        <pop depth="1"/>
```
```
      </rule>
```
```
      <rule>
```
```
        <pop depth="1"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="directive">
```
```
      <rule pattern="ACCEPT">
```
```
        <token type="KeywordPseudo"/>
```

        <push state="accept-directive"/>

```
      </rule>
```
```
      <rule pattern="CLASSDEF">
```
```
        <token type="KeywordPseudo"/>
```

        <push state="classdef-directive"/>

```
      </rule>
```
```
      <rule pattern="IF|ELSEIF">
```
```
        <token type="KeywordPseudo"/>
```
```
        <push state="if-directive"/>
```
```
      </rule>
```
```
      <rule pattern="PACKAGE">
```
```
        <token type="KeywordPseudo"/>
```

        <push state="package-directive"/>

```
      </rule>
```
```
      <rule pattern="PROPERTYDEF">
```
```
        <token type="KeywordPseudo"/>
```
```
        <pop depth="1"/>
```
```
      </rule>
```
```
      <rule pattern="INFO|WARN">
```
```
        <token type="KeywordPseudo"/>
```
```
        <push state="warn-directive"/>
```
```
      </rule>
```
```
      <rule pattern="OPTION">
```
```
        <token type="KeywordPseudo"/>
```

        <push state="option-directive"/>

```
      </rule>
```

      <rule pattern="BYPASS|ELSE|END|ENDBYPASS|ENDIF|OPTIMIZE">

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

        <push state="other-directive"/>

```
      </rule>
```
```
    </state>
```
```
    <state name="accept-directive">
```
```
      <rule pattern=".+$">
```
```
        <token type="CommentSingle"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="other-directive">
```
```
      <rule pattern=".+$">
```
```
        <token type="CommentSingle"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="classdef-directive">
```
```
      <rule pattern="\s+">
```
```
        <token type="Text"/>
```
```
      </rule>
```

      <rule pattern="delimiter|extends">

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

        <token type="KeywordDeclaration"/>

```
      </rule>
```
```
      <rule pattern="=">
```
```
        <token type="Operator"/>
```
```
      </rule>
```
```
      <rule pattern="[\w\d]+">
```
```
        <token type="NameClass"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="if-directive">
```
```
      <rule pattern=".+$">
```
```
        <include state="root"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="option-directive">
```
```
      <rule pattern="\s+">
```
```
        <token type="Text"/>
```
```
      </rule>
```
```
      <rule pattern="ON|OFF">
```

        <token type="KeywordConstant"/>

```
        <pop depth="1"/>
```
```
      </rule>
```
```
      <rule pattern="[\w\d]+">
```
```
        <token type="Name"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="package-directive">
```
```
      <rule pattern="\s+">
```
```
        <token type="Text"/>
```
```
      </rule>
```
```
      <rule pattern="\w+">
```
```
        <token type="Name"/>
```
```
      </rule>
```
```
      <rule>
```
```
        <include state="root"/>
```
```
      </rule>
```
```
    </state>
```
```
  </rules>
```
```
</lexer>
```

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