<?xml version="1.0" encoding="UTF-8"?>
<grammar ns="http://buildservice.org/api" xmlns="http://relaxng.org/ns/structure/1.0" datatypeLibrary="http://www.w3.org/2001/XMLSchema-datatypes">

  <include href="obs.rng" />

  <start>
    <ref name="constraints-element"/>
  </start>

  <define ns="" name="constraints-element">
    <element name="constraints">
        <!-- generic part -->
        <ref name="constraint-element"/>

        <zeroOrMore>
          <!-- multiple arch specific parts -->
          <element name="overwrite">
            <element name="conditions">
              <zeroOrMore>
                <element name="arch">
                  <ref name="build-arch" />
                </element>
              </zeroOrMore>
              <zeroOrMore>
                <element name="package">
                  <text/> <!-- package container name for multiple spec file packages -->
                </element>
              </zeroOrMore>
            </element>
            <ref name="constraint-element"/>
          </element>
        </zeroOrMore>
    </element>
  </define>

  <define ns="" name="constraint-element">
    <interleave> 
      <zeroOrMore>
        <element ns="" name="hostlabel">
          <optional>
            <attribute name="exclude">
              <choice>
                <value>false</value>
                <value>true</value>
              </choice>
            </attribute>
          </optional>
          <text/>
        </element>
      </zeroOrMore>
      <optional>
        <element name="sandbox">
          <optional>
            <attribute name="exclude">
              <choice>
                <value>false</value>
                <value>true</value>
              </choice>
            </attribute>
          </optional>
          <ref name="build-sandbox"/>
        </element>
      </optional>
      <optional>
        <element name="linux">
           <optional>
             <element name="version">
               <optional>
                 <element name="max">
                   <text/>
                 </element>
               </optional>
               <optional>
                 <element name="min">
                   <text/>
                 </element>
               </optional>
             </element>
           </optional>
           <optional>
             <element ns="" name="flavor">
               <text/>
             </element>
           </optional>
        </element>
      </optional>
      <optional>
        <element name="hardware">
          <interleave> 
            <optional>
              <element name="cpu">
                <oneOrMore> 
                  <element name="flag">
                    <ref name="cpu-flags"/>
                  </element>
                </oneOrMore> 
              </element>
            </optional>
            <optional>
              <element name="processors">
                <data type="integer"/>
              </element>
            </optional>
            <optional>
              <element name="disk">
                <ref name="size-unit"/>
              </element>
            </optional>
            <optional>
             <element name="memory">
               <ref name="size-unit"/>
             </element>
            </optional>
            <optional>
             <element name="physicalmemory">
               <ref name="size-unit"/>
             </element>
            </optional>
          </interleave>
        </element>
      </optional>
    </interleave> 
  </define>

</grammar>
