<lexer>

  <config>

    <name>Docker</name>

    <alias>docker</alias>

    <alias>dockerfile</alias>

    <filename>Dockerfile</filename>

    <filename>Dockerfile.*</filename>

    <filename>*.Dockerfile</filename>

    <filename>*.docker</filename>

    <mime_type>text/x-dockerfile-config</mime_type>

    <case_insensitive>true</case_insensitive>

  </config>

  <rules>

    <state name="root">

      <rule pattern="#.*">

        <token type="Comment"/>

      </rule>

      <rule pattern="(ONBUILD)((?:\s*\\?\s*))">

        <bygroups>

          <token type="Keyword"/>

          <using lexer="Bash"/>

        </bygroups>

      </rule>

      <rule pattern="(HEALTHCHECK)(((?:\s*\\?\s*)--\w+=\w+(?:\s*\\?\s*))*)">

        <bygroups>

          <token type="Keyword"/>

          <using lexer="Bash"/>

        </bygroups>

      </rule>

      <rule pattern="(VOLUME|ENTRYPOINT|CMD|SHELL)((?:\s*\\?\s*))(\[.*?\])">

        <bygroups>

          <token type="Keyword"/>

          <using lexer="Bash"/>

          <using lexer="JSON"/>

        </bygroups>

      </rule>

      <rule pattern="(LABEL|ENV|ARG)((?:(?:\s*\\?\s*)\w+=\w+(?:\s*\\?\s*))*)">

        <bygroups>

          <token type="Keyword"/>

          <using lexer="Bash"/>

        </bygroups>

      </rule>

      <rule pattern="((?:FROM|MAINTAINER|EXPOSE|WORKDIR|USER|STOPSIGNAL)|VOLUME)\b(.*)">

        <bygroups>

          <token type="Keyword"/>

          <token type="LiteralString"/>

        </bygroups>

      </rule>

      <rule pattern="((?:RUN|CMD|ENTRYPOINT|ENV|ARG|LABEL|ADD|COPY))">

        <token type="Keyword"/>

      </rule>

      <rule pattern="(.*\\\n)*.+">

        <using lexer="Bash"/>

      </rule>

    </state>

  </rules>

</lexer>