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

```
<lexer>
```
```
  <config>
```
```
    <name>Io</name>
```
```
    <alias>io</alias>
```
```
    <filename>*.io</filename>
```

    <mime_type>text/x-iosrc</mime_type>

```
  </config>
```
```
  <rules>
```
```
    <state name="root">
```
```
      <rule pattern="\n">
```
```
        <token type="Text"/>
```
```
      </rule>
```
```
      <rule pattern="\s+">
```
```
        <token type="Text"/>
```
```
      </rule>
```
```
      <rule pattern="//(.*?)\n">
```
```
        <token type="CommentSingle"/>
```
```
      </rule>
```
```
      <rule pattern="#(.*?)\n">
```
```
        <token type="CommentSingle"/>
```
```
      </rule>
```

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

        <token type="CommentMultiline"/>

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

        <token type="CommentMultiline"/>

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

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

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

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

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

      <rule pattern="(clone|do|doFile|doString|method|for|if|else|elseif|then)\b">

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

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

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

      <rule pattern="(Object|list|List|Map|args|Sequence|Coroutine|File)\b">

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

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

        <token type="LiteralNumberFloat"/>

```
      </rule>
```
```
      <rule pattern="\d+">
```

        <token type="LiteralNumberInteger"/>

```
      </rule>
```
```
    </state>
```
```
    <state name="nestedcomment">
```
```
      <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>
```
```
  </rules>
```
```
</lexer>
```

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