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

```
<lexer>
```
```
  <config>
```
```
    <name>ISCdhcpd</name>
```
```
    <alias>iscdhcpd</alias>
```
```
    <filename>dhcpd.conf</filename>
```
```
  </config>
```
```
  <rules>
```
```
    <state name="interpol">
```
```
      <rule pattern="\$[{(]">
```

        <token type="LiteralStringInterpol"/>

```
        <push/>
```
```
      </rule>
```
```
      <rule pattern="[})]">
```

        <token type="LiteralStringInterpol"/>

```
        <pop depth="1"/>
```
```
      </rule>
```
```
      <rule pattern="[^${()}]+">
```

        <token type="LiteralStringInterpol"/>

```
      </rule>
```
```
    </state>
```
```
    <state name="root">
```
```
      <rule pattern="#.*?\n">
```
```
        <token type="Comment"/>
```
```
      </rule>
```

      <rule pattern="(hardware|packet|leased-address|host-decl-name|lease-time|max-lease-time|client-state|config-option|option|filename|next-server|allow|deny|match|ignore)\b">

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

      <rule pattern="(include|group|host|subnet|subnet6|netmask|class|subclass|pool|failover|include|shared-network|range|range6|prefix6)\b">

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

      <rule pattern="(on|off|true|false|none)\b">

        <token type="KeywordConstant"/>

```
      </rule>
```

      <rule pattern="(if|elsif|else)\b">

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

      <rule pattern="(exists|known|static)\b">

        <token type="KeywordConstant"/>

```
      </rule>
```
```
      <rule pattern="(and|or|not)\b">
```
```
        <token type="OperatorWord"/>
```
```
      </rule>
```
```
      <rule pattern="(==|!=|~=|~~|=)">
```
```
        <token type="Operator"/>
```
```
      </rule>
```
```
      <rule pattern="[{},;\)]">
```
```
        <token type="Punctuation"/>
```
```
      </rule>
```

      <rule pattern="\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\/\d{1,2}">

        <token type="LiteralNumberFloat"/>

```
      </rule>
```

      <rule pattern="\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}">

        <token type="LiteralNumberFloat"/>

```
      </rule>
```

      <rule pattern="[a-fA-F0-9]{1,2}:[a-fA-F0-9]{1,2}:[a-fA-F0-9]{1,2}:[a-fA-F0-9]{1,2}:[a-fA-F0-9]{1,2}:[a-fA-F0-9]{1,2}">

        <token type="LiteralNumberHex"/>

```
      </rule>
```
```
      <rule pattern="&#34;">
```
```
        <token type="LiteralString"/>
```

        <push state="doublequotestring"/>

```
      </rule>
```

      <rule pattern="([\w\-.]+)(\s*)(\()">

```
        <bygroups>
```
```
          <token type="NameFunction"/>
```
```
          <token type="Text"/>
```
```
          <token type="Punctuation"/>
```
```
        </bygroups>
```
```
      </rule>
```
```
      <rule pattern="[\w\-.]+">
```
```
        <token type="NameVariable"/>
```
```
      </rule>
```
```
      <rule pattern="\s+">
```
```
        <token type="Text"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="doublequotestring">
```
```
      <rule pattern="\$[{(]">
```

        <token type="LiteralStringInterpol"/>

```
        <push state="interpol"/>
```
```
      </rule>
```
```
      <rule pattern="\\.">
```

        <token type="LiteralStringEscape"/>

```
      </rule>
```
```
      <rule pattern="&#34;">
```
```
        <token type="LiteralString"/>
```
```
        <pop depth="1"/>
```
```
      </rule>
```
```
      <rule pattern="\n">
```
```
        <token type="LiteralString"/>
```
```
      </rule>
```
```
      <rule pattern=".">
```
```
        <token type="LiteralString"/>
```
```
      </rule>
```
```
    </state>
```
```
  </rules>
```
```
</lexer>
```