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

```
<lexer>
```
```
  <config>
```
```
    <name>Snobol</name>
```
```
    <alias>snobol</alias>
```
```
    <filename>*.snobol</filename>
```

    <mime_type>text/x-snobol</mime_type>

```
  </config>
```
```
  <rules>
```
```
    <state name="heredoc">
```
```
      <rule pattern=".*\n">
```

        <token type="LiteralStringHeredoc"/>

```
      </rule>
```
```
    </state>
```
```
    <state name="root">
```
```
      <rule pattern="\*.*\n">
```
```
        <token type="Comment"/>
```
```
      </rule>
```
```
      <rule pattern="[+.] ">
```
```
        <token type="Punctuation"/>
```
```
        <push state="statement"/>
```
```
      </rule>
```
```
      <rule pattern="-.*\n">
```
```
        <token type="Comment"/>
```
```
      </rule>
```
```
      <rule pattern="END\s*\n">
```
```
        <token type="NameLabel"/>
```
```
        <push state="heredoc"/>
```
```
      </rule>
```
```
      <rule pattern="[A-Za-z$][\w$]*">
```
```
        <token type="NameLabel"/>
```
```
        <push state="statement"/>
```
```
      </rule>
```
```
      <rule pattern="\s+">
```
```
        <token type="Text"/>
```
```
        <push state="statement"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="statement">
```
```
      <rule pattern="\s*\n">
```
```
        <token type="Text"/>
```
```
        <pop depth="1"/>
```
```
      </rule>
```
```
      <rule pattern="\s+">
```
```
        <token type="Text"/>
```
```
      </rule>
```

      <rule pattern="(?&lt;=[^\w.])(LT|LE|EQ|NE|GE|GT|INTEGER|IDENT|DIFFER|LGT|SIZE|REPLACE|TRIM|DUPL|REMDR|DATE|TIME|EVAL|APPLY|OPSYN|LOAD|UNLOAD|LEN|SPAN|BREAK|ANY|NOTANY|TAB|RTAB|REM|POS|RPOS|FAIL|FENCE|ABORT|ARB|ARBNO|BAL|SUCCEED|INPUT|OUTPUT|TERMINAL)(?=[^\w.])">

```
        <token type="NameBuiltin"/>
```
```
      </rule>
```
```
      <rule pattern="[A-Za-z][\w.]*">
```
```
        <token type="Name"/>
```
```
      </rule>
```

      <rule pattern="\*\*|[?$.!%*/#+\-@|&amp;\\=]">

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

      <rule pattern="&#34;[^&#34;]*&#34;">

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

      <rule pattern="&#39;[^&#39;]*&#39;">

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

      <rule pattern="[0-9]+(?=[^.EeDd])">

        <token type="LiteralNumberInteger"/>

```
      </rule>
```

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

        <token type="LiteralNumberFloat"/>

```
      </rule>
```
```
      <rule pattern=":">
```
```
        <token type="Punctuation"/>
```
```
        <push state="goto"/>
```
```
      </rule>
```
```
      <rule pattern="[()&lt;&gt;,;]">
```
```
        <token type="Punctuation"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="goto">
```
```
      <rule pattern="\s*\n">
```
```
        <token type="Text"/>
```
```
        <pop depth="2"/>
```
```
      </rule>
```
```
      <rule pattern="\s+">
```
```
        <token type="Text"/>
```
```
      </rule>
```
```
      <rule pattern="F|S">
```
```
        <token type="Keyword"/>
```
```
      </rule>
```

      <rule pattern="(\()([A-Za-z][\w.]*)(\))">

```
        <bygroups>
```
```
          <token type="Punctuation"/>
```
```
          <token type="NameLabel"/>
```
```
          <token type="Punctuation"/>
```
```
        </bygroups>
```
```
      </rule>
```
```
    </state>
```
```
  </rules>
```
```
</lexer>
```