cheat/vendor/github.com/alecthomas/chroma/v2/lexers/embedded/ebnf.xml

<lexer>
  <config>
    <name>EBNF</name>
    <alias>ebnf</alias>
    <filename>*.ebnf</filename>
    <mime_type>text/x-ebnf</mime_type>
  </config>
  <rules>
    <state name="comment">
      <rule pattern="[^*)]">
        <token type="CommentMultiline"/>
      </rule>
      <rule>
        <include state="comment_start"/>
      </rule>
      <rule pattern="\*\)">
        <token type="CommentMultiline"/>
        <pop depth="1"/>
      </rule>
      <rule pattern="[*)]">
        <token type="CommentMultiline"/>
      </rule>
    </state>
    <state name="identifier">
      <rule pattern="([a-zA-Z][\w \-]*)">
        <token type="Keyword"/>
      </rule>
    </state>
    <state name="root">
      <rule>
        <include state="whitespace"/>
      </rule>
      <rule>
        <include state="comment_start"/>
      </rule>
      <rule>
        <include state="identifier"/>
      </rule>
      <rule pattern="=">
        <token type="Operator"/>
        <push state="production"/>
      </rule>
    </state>
    <state name="production">
      <rule>
        <include state="whitespace"/>
      </rule>
      <rule>
        <include state="comment_start"/>
      </rule>
      <rule>
        <include state="identifier"/>
      </rule>
      <rule pattern="&#34;[^&#34;]*&#34;">
        <token type="LiteralStringDouble"/>
      </rule>
      <rule pattern="&#39;[^&#39;]*&#39;">
        <token type="LiteralStringSingle"/>
      </rule>
      <rule pattern="(\?[^?]*\?)">
        <token type="NameEntity"/>
      </rule>
      <rule pattern="[\[\]{}(),|]">
        <token type="Punctuation"/>
      </rule>
      <rule pattern="-">
        <token type="Operator"/>
      </rule>
      <rule pattern=";">
        <token type="Punctuation"/>
        <pop depth="1"/>
      </rule>
      <rule pattern="\.">
        <token type="Punctuation"/>
        <pop depth="1"/>
      </rule>
    </state>
    <state name="whitespace">
      <rule pattern="\s+">
        <token type="Text"/>
      </rule>
    </state>
    <state name="comment_start">
      <rule pattern="\(\*">
        <token type="CommentMultiline"/>
        <push state="comment"/>
      </rule>
    </state>
  </rules>
</lexer>