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

```
<lexer>
```
```
  <config>
```
```
    <name>SPARQL</name>
```
```
    <alias>sparql</alias>
```
```
    <filename>*.rq</filename>
```
```
    <filename>*.sparql</filename>
```

    <mime_type>application/sparql-query</mime_type>

```
  </config>
```
```
  <rules>
```
```
    <state name="string-escape">
```
```
      <rule pattern="u[0-9A-Fa-f]{4}">
```

        <token type="LiteralStringEscape"/>

```
        <pop depth="1"/>
```
```
      </rule>
```
```
      <rule pattern="U[0-9A-Fa-f]{8}">
```

        <token type="LiteralStringEscape"/>

```
        <pop depth="1"/>
```
```
      </rule>
```
```
      <rule pattern=".">
```

        <token type="LiteralStringEscape"/>

```
        <pop depth="1"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="end-of-string">
```

      <rule pattern="(@)([a-zA-Z]+(?:-[a-zA-Z0-9]+)*)">

```
        <bygroups>
```
```
          <token type="Operator"/>
```
```
          <token type="NameFunction"/>
```
```
        </bygroups>
```
```
        <pop depth="2"/>
```
```
      </rule>
```
```
      <rule pattern="\^\^">
```
```
        <token type="Operator"/>
```
```
        <pop depth="2"/>
```
```
      </rule>
```
```
      <rule>
```
```
        <pop depth="2"/>
```
```
      </rule>
```
```
    </state>
```
```
    <state name="root">
```
```
      <rule pattern="\s+">
```
```
        <token type="Text"/>
```
```
      </rule>
```

      <rule pattern="((?i)select|construct|describe|ask|where|filter|group\s+by|minus|distinct|reduced|from\s+named|from|order\s+by|desc|asc|limit|offset|bindings|load|clear|drop|create|add|move|copy|insert\s+data|delete\s+data|delete\s+where|delete|insert|using\s+named|using|graph|default|named|all|optional|service|silent|bind|union|not\s+in|in|as|having|to|prefix|base)\b">

```
        <token type="Keyword"/>
```
```
      </rule>
```
```
      <rule pattern="(a)\b">
```
```
        <token type="Keyword"/>
```
```
      </rule>
```

      <rule pattern="(&lt;(?:[^&lt;&gt;&#34;{}|^`\\\x00-\x20])*&gt;)">

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

      <rule pattern="(_:[_\p{L}\p{N}](?:[-_.\p{L}\p{N}]*[-_\p{L}\p{N}])?)">

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

      <rule pattern="[?$][_\p{L}\p{N}]+">

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

      <rule pattern="([\p{L}][-_.\p{L}\p{N}]*)?(\:)((?:[_:\p{L}\p{N}]|(?:%[0-9A-Fa-f][0-9A-Fa-f])|(?:\\[ _~.\-!$&amp;&#34;()*+,;=/?#@%]))(?:(?:[-_:.\p{L}\p{N}]|(?:%[0-9A-Fa-f][0-9A-Fa-f])|(?:\\[ _~.\-!$&amp;&#34;()*+,;=/?#@%]))*(?:[-_:\p{L}\p{N}]|(?:%[0-9A-Fa-f][0-9A-Fa-f])|(?:\\[ _~.\-!$&amp;&#34;()*+,;=/?#@%])))?)?">

```
        <bygroups>
```

          <token type="NameNamespace"/>

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

      <rule pattern="((?i)str|lang|langmatches|datatype|bound|iri|uri|bnode|rand|abs|ceil|floor|round|concat|strlen|ucase|lcase|encode_for_uri|contains|strstarts|strends|strbefore|strafter|year|month|day|hours|minutes|seconds|timezone|tz|now|md5|sha1|sha256|sha384|sha512|coalesce|if|strlang|strdt|sameterm|isiri|isuri|isblank|isliteral|isnumeric|regex|substr|replace|exists|not\s+exists|count|sum|min|max|avg|sample|group_concat|separator)\b">

```
        <token type="NameFunction"/>
```
```
      </rule>
```
```
      <rule pattern="(true|false)">
```

        <token type="KeywordConstant"/>

```
      </rule>
```

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

        <token type="LiteralNumberFloat"/>

```
      </rule>
```

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

        <token type="LiteralNumberFloat"/>

```
      </rule>
```
```
      <rule pattern="[+\-]?\d+">
```

        <token type="LiteralNumberInteger"/>

```
      </rule>
```

      <rule pattern="(\|\||&amp;&amp;|=|\*|\-|\+|/|!=|&lt;=|&gt;=|!|&lt;|&gt;)">

```
        <token type="Operator"/>
```
```
      </rule>
```
```
      <rule pattern="[(){}.;,:^\[\]]">
```
```
        <token type="Punctuation"/>
```
```
      </rule>
```
```
      <rule pattern="#[^\n]*">
```
```
        <token type="Comment"/>
```
```
      </rule>
```
```
      <rule pattern="&#34;&#34;&#34;">
```
```
        <token type="LiteralString"/>
```

        <push state="triple-double-quoted-string"/>

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

        <push state="single-double-quoted-string"/>

```
      </rule>
```
```
      <rule pattern="&#39;&#39;&#39;">
```
```
        <token type="LiteralString"/>
```

        <push state="triple-single-quoted-string"/>

```
      </rule>
```
```
      <rule pattern="&#39;">
```
```
        <token type="LiteralString"/>
```

        <push state="single-single-quoted-string"/>

```
      </rule>
```
```
    </state>
```

    <state name="triple-double-quoted-string">

```
      <rule pattern="&#34;&#34;&#34;">
```
```
        <token type="LiteralString"/>
```
```
        <push state="end-of-string"/>
```
```
      </rule>
```
```
      <rule pattern="[^\\]+">
```
```
        <token type="LiteralString"/>
```
```
      </rule>
```
```
      <rule pattern="\\">
```
```
        <token type="LiteralString"/>
```
```
        <push state="string-escape"/>
```
```
      </rule>
```
```
    </state>
```

    <state name="single-double-quoted-string">

```
      <rule pattern="&#34;">
```
```
        <token type="LiteralString"/>
```
```
        <push state="end-of-string"/>
```
```
      </rule>
```
```
      <rule pattern="[^&#34;\\\n]+">
```
```
        <token type="LiteralString"/>
```
```
      </rule>
```
```
      <rule pattern="\\">
```
```
        <token type="LiteralString"/>
```
```
        <push state="string-escape"/>
```
```
      </rule>
```
```
    </state>
```

    <state name="triple-single-quoted-string">

```
      <rule pattern="&#39;&#39;&#39;">
```
```
        <token type="LiteralString"/>
```
```
        <push state="end-of-string"/>
```
```
      </rule>
```
```
      <rule pattern="[^\\]+">
```
```
        <token type="LiteralString"/>
```
```
      </rule>
```
```
      <rule pattern="\\">
```

        <token type="LiteralStringEscape"/>

```
        <push state="string-escape"/>
```
```
      </rule>
```
```
    </state>
```

    <state name="single-single-quoted-string">

```
      <rule pattern="&#39;">
```
```
        <token type="LiteralString"/>
```
```
        <push state="end-of-string"/>
```
```
      </rule>
```
```
      <rule pattern="[^&#39;\\\n]+">
```
```
        <token type="LiteralString"/>
```
```
      </rule>
```
```
      <rule pattern="\\">
```
```
        <token type="LiteralString"/>
```
```
        <push state="string-escape"/>
```
```
      </rule>
```
```
    </state>
```
```
  </rules>
```
```
</lexer>
```