<?xml version="1.0" encoding="UTF-8"?>

<!-- 
  This is the RNG file for validating Console_CommandLine xml definitions.

  Author  : David JEAN LOUIS
  Licence : MIT License
  Version : CVS: $Id$
-->

<grammar xmlns="http://relaxng.org/ns/structure/1.0" 
         datatypeLibrary="http://www.w3.org/2001/XMLSchema-datatypes">

  <!-- structure -->
  <start>
      <ref name="ref_command"/>
  </start>

  <!-- Command node -->
  <define name="ref_command_subcommand_common">
    <interleave>
      <optional>
        <element name="name">
          <text/>
        </element>
      </optional>
      <optional>
        <element name="description">
          <text/>
        </element>
      </optional>
      <optional>
        <element name="version">
          <text/>
        </element>
      </optional>
      <optional>
        <element name="add_help_option">
          <ref name="ref_bool_choices"/>
        </element>
      </optional>
      <optional>
        <element name="add_version_option">
          <ref name="ref_bool_choices"/>
        </element>
      </optional>
      <optional>
        <element name="force_posix">
          <ref name="ref_bool_choices"/>
        </element>
      </optional>
      <optional>
        <ref name="ref_messages_common"/>
      </optional>
      <zeroOrMore>
        <ref name="ref_option"/>
      </zeroOrMore>
      <zeroOrMore>
        <ref name="ref_argument"/>
      </zeroOrMore>
      <zeroOrMore>
        <ref name="ref_subcommand"/>
      </zeroOrMore>
    </interleave>
  </define>

  <!-- command element -->

  <define name="ref_command">
    <element name="command">
      <interleave>
        <ref name="ref_command_subcommand_common"/>
      </interleave>
    </element>
  </define>

  <!-- subcommand element -->

  <define name="ref_subcommand">
    <element name="command">
      <interleave>
        <ref name="ref_command_subcommand_common"/>
        <optional>
          <element name="aliases">
            <zeroOrMore>
              <element name="alias">
                <text/>
              </element>
            </zeroOrMore>
          </element>
        </optional>
      </interleave>
    </element>
  </define>

  <!-- custom messages common element -->

  <define name="ref_messages_common">
    <element name="messages">
      <oneOrMore>
        <element name="message">
          <attribute name="name">
            <data type="string"/>
          </attribute>
          <text/>
        </element>
      </oneOrMore>
    </element>
  </define>

  <!-- options and arguments common elements -->

  <define name="ref_option_argument_common">
    <interleave>
      <optional>
        <element name="description">
          <text/>
        </element>
      </optional>
      <optional>
        <element name="help_name">
          <text/>
        </element>
      </optional>
      <optional>
        <element name="default">
          <text/>
        </element>
      </optional>
      <optional>
        <ref name="ref_messages_common"/>
      </optional>
    </interleave>
  </define>

  <!-- Option node -->
  <define name="ref_option">
    <element name="option">
      <attribute name="name">
        <data type="string"/>
      </attribute>
      <interleave>
        <optional>
          <element name="short_name">
            <text/>
          </element>
        </optional>
        <optional>
          <element name="long_name">
            <text/>
          </element>
        </optional>
        <ref name="ref_option_argument_common"/>
        <optional>
          <element name="action">
            <text/>
          </element>
        </optional>
        <optional>
          <element name="choices">
            <zeroOrMore>
              <element name="choice">
                <text/>
              </element>
            </zeroOrMore>
          </element>
        </optional>
        <optional>
          <element name="add_list_option">
            <ref name="ref_bool_choices"/>
          </element>
        </optional>
      </interleave>
    </element>
  </define>

  <!-- Argument node -->
  <define name="ref_argument">
    <element name="argument">
      <attribute name="name">
        <data type="string"/>
      </attribute>
      <interleave>
        <ref name="ref_option_argument_common"/>
        <optional>
          <element name="multiple">
            <ref name="ref_bool_choices"/>
          </element>
        </optional>
        <optional>
          <element name="optional">
            <ref name="ref_bool_choices"/>
          </element>
        </optional>
        <optional>
          <element name="choices">
            <zeroOrMore>
              <element name="choice">
                <text/>
              </element>
            </zeroOrMore>
           </element>
         </optional>
      </interleave>
    </element>
  </define>

  <!-- boolean choices -->
  <define name="ref_bool_choices">
    <choice>
      <data type="token">
        <param name="pattern">[Tt][Rr][Uu][Ee]</param>
      </data>
      <data type="token">
        <param name="pattern">[On][Nn]</param>
      </data>
      <data type="token">
        <param name="pattern">[Yy][Ee][Ss]</param>
      </data>
      <value>1</value>
      <data type="token">
        <param name="pattern">[Ff][Aa][Ll][Ss][Ee]</param>
      </data>
      <data type="token">
        <param name="pattern">[Of][Ff][Ff]</param>
      </data>
      <data type="token">
        <param name="pattern">[Nn][Oo]</param>
      </data>
      <value>0</value>
    </choice>
  </define>

</grammar>