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

```
<lexer>
```
```
  <config>
```
```
    <name>GAS</name>
```
```
    <alias>gas</alias>
```
```
    <alias>asm</alias>
```
```
    <filename>*.s</filename>
```
```
    <filename>*.S</filename>
```
```
    <mime_type>text/x-gas</mime_type>
```
```
    <priority>0.1</priority>
```
```
  </config>
```
```
  <rules>
```
```
    <state name="punctuation">
```
```
      <rule pattern="[-*,.()\[\]!:]+">
```
```
        <token type="Punctuation"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="root">
```
```
      <rule>
```
```
        <include state="whitespace"/>
```
```
      </rule>
```

      <rule pattern="(?:[a-zA-Z$_][\w$.@-]*|\.[\w$.@-]+):">

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

      <rule pattern="\.(?:[a-zA-Z$_][\w$.@-]*|\.[\w$.@-]+)">

```
        <token type="NameAttribute"/>
```
```
        <push state="directive-args"/>
```
```
      </rule>
```

      <rule pattern="lock|rep(n?z)?|data\d+">

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

      <rule pattern="(?:[a-zA-Z$_][\w$.@-]*|\.[\w$.@-]+)">

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

        <push state="instruction-args"/>

```
      </rule>
```
```
      <rule pattern="[\r\n]+">
```
```
        <token type="Text"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="directive-args">
```

      <rule pattern="(?:[a-zA-Z$_][\w$.@-]*|\.[\w$.@-]+)">

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

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

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

      <rule pattern="@(?:[a-zA-Z$_][\w$.@-]*|\.[\w$.@-]+)">

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

      <rule pattern="(?:0[xX][a-zA-Z0-9]+|\d+)">

        <token type="LiteralNumberInteger"/>

```
      </rule>
```

      <rule pattern="%(?:[a-zA-Z$_][\w$.@-]*|\.[\w$.@-]+)">

```
        <token type="NameVariable"/>
```
```
      </rule>
```
```
      <rule pattern="[\r\n]+">
```
```
        <token type="Text"/>
```
```
        <pop depth="1"/>
```
```
      </rule>
```
```
      <rule pattern="([;#]|//).*?\n">
```
```
        <token type="CommentSingle"/>
```
```
        <pop depth="1"/>
```
```
      </rule>
```
```
      <rule pattern="/[*].*?[*]/">
```

        <token type="CommentMultiline"/>

```
      </rule>
```

      <rule pattern="/[*].*?\n[\w\W]*?[*]/">

        <token type="CommentMultiline"/>

```
        <pop depth="1"/>
```
```
      </rule>
```
```
      <rule>
```
```
        <include state="punctuation"/>
```
```
      </rule>
```
```
      <rule>
```
```
        <include state="whitespace"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="instruction-args">
```

      <rule pattern="([a-z0-9]+)( )(&lt;)((?:[a-zA-Z$_][\w$.@-]*|\.[\w$.@-]+))(&gt;)">

```
        <bygroups>
```

          <token type="LiteralNumberHex"/>

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

      <rule pattern="([a-z0-9]+)( )(&lt;)((?:[a-zA-Z$_][\w$.@-]*|\.[\w$.@-]+))([-+])((?:0[xX][a-zA-Z0-9]+|\d+))(&gt;)">

```
        <bygroups>
```

          <token type="LiteralNumberHex"/>

```
          <token type="Text"/>
```
```
          <token type="Punctuation"/>
```
```
          <token type="NameConstant"/>
```
```
          <token type="Punctuation"/>
```

          <token type="LiteralNumberInteger"/>

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

      <rule pattern="(?:[a-zA-Z$_][\w$.@-]*|\.[\w$.@-]+)">

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

      <rule pattern="(?:0[xX][a-zA-Z0-9]+|\d+)">

        <token type="LiteralNumberInteger"/>

```
      </rule>
```

      <rule pattern="%(?:[a-zA-Z$_][\w$.@-]*|\.[\w$.@-]+)">

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

      <rule pattern="$(?:0[xX][a-zA-Z0-9]+|\d+)">

        <token type="LiteralNumberInteger"/>

```
      </rule>
```

      <rule pattern="$&#39;(.|\\&#39;)&#39;">

        <token type="LiteralStringChar"/>

```
      </rule>
```
```
      <rule pattern="[\r\n]+">
```
```
        <token type="Text"/>
```
```
        <pop depth="1"/>
```
```
      </rule>
```
```
      <rule pattern="([;#]|//).*?\n">
```
```
        <token type="CommentSingle"/>
```
```
        <pop depth="1"/>
```
```
      </rule>
```
```
      <rule pattern="/[*].*?[*]/">
```

        <token type="CommentMultiline"/>

```
      </rule>
```

      <rule pattern="/[*].*?\n[\w\W]*?[*]/">

        <token type="CommentMultiline"/>

```
        <pop depth="1"/>
```
```
      </rule>
```
```
      <rule>
```
```
        <include state="punctuation"/>
```
```
      </rule>
```
```
      <rule>
```
```
        <include state="whitespace"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="whitespace">
```
```
      <rule pattern="\n">
```
```
        <token type="Text"/>
```
```
      </rule>
```
```
      <rule pattern="\s+">
```
```
        <token type="Text"/>
```
```
      </rule>
```
```
      <rule pattern="([;#]|//).*?\n">
```
```
        <token type="CommentSingle"/>
```
```
      </rule>
```

      <rule pattern="/[*][\w\W]*?[*]/">

        <token type="CommentMultiline"/>

```
      </rule>
```
```
    </state>
```
```
  </rules>
```
```
</lexer>
```

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