tartrazine/lexers/cheetah.xml

<lexer>
  <config>
    <name>Cheetah</name>
    <alias>cheetah</alias>
    <alias>spitfire</alias>
    <filename>*.tmpl</filename>
    <filename>*.spt</filename>
    <mime_type>application/x-cheetah</mime_type>
    <mime_type>application/x-spitfire</mime_type>
  </config>
  <rules>
    <state name="root">
      <rule pattern="(##[^\n]*)$">
        <bygroups>
          <token type="Comment"/>
        </bygroups>
      </rule>
      <rule pattern="#[*](.|\n)*?[*]#">
        <token type="Comment"/>
      </rule>
      <rule pattern="#end[^#\n]*(?:#|$)">
        <token type="CommentPreproc"/>
      </rule>
      <rule pattern="#slurp$">
        <token type="CommentPreproc"/>
      </rule>
      <rule pattern="(#[a-zA-Z]+)([^#\n]*)(#|$)">
        <bygroups>
          <token type="CommentPreproc"/>
          <using lexer="Python"/>
          <token type="CommentPreproc"/>
        </bygroups>
      </rule>
      <rule pattern="(\$)([a-zA-Z_][\w.]*\w)">
        <bygroups>
          <token type="CommentPreproc"/>
          <using lexer="Python"/>
        </bygroups>
      </rule>
      <rule pattern="(\$\{!?)(.*?)(\})(?s)">
        <bygroups>
          <token type="CommentPreproc"/>
          <using lexer="Python"/>
          <token type="CommentPreproc"/>
        </bygroups>
      </rule>
      <rule pattern="(?sx)&#xA;                (.+?)               # anything, followed by:&#xA;                (?:&#xA;                 (?=\#[#a-zA-Z]*) | # an eval comment&#xA;                 (?=\$[a-zA-Z_{]) | # a substitution&#xA;                 \Z                 # end of string&#xA;                )&#xA;            ">
        <token type="Other"/>
      </rule>
      <rule pattern="\s+">
        <token type="Text"/>
      </rule>
    </state>
  </rules>
</lexer>