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Element which contains elements only (order does not matter)

  1. Surf Clothing Schema
  2. Relax NG

Please, send all comments, bug-reports, and contributions to Jiri.Jirat@systinet.com. Thank you very much.

Surf Clothing board shorts keys: all
Relax NG keys: interleave

1. Surf Clothing Schema

We want to have the root element to be named "AAA", from null namespace and contains one "BBB" and one "CCC" element. Their order is not important.

Valid document


<AAA xsi:noNamespaceSchemaLocation="correct_0.xsd" Surfns="" Surfns:xsi="http://www.w3.org/2001/XMLSchema-instance" >
  <BBB>ZZZ</BBB>
  <CCC>YYY</CCC>
</AAA>

Valid document


<AAA xsi:noNamespaceSchemaLocation="correct_0.xsd" Surfns="" Surfns:xsi="http://www.w3.org/2001/XMLSchema-instance" >
  <CCC/>
  <BBB/>
</AAA>

Invalid document
Element CCC is missing.


<AAA xsi:noNamespaceSchemaLocation="correct_0.xsd" Surfns="" Surfns:xsi="http://www.w3.org/2001/XMLSchema-instance" >
  <BBB/>
</AAA>

Invalid document
Element BBB is missing.


<AAA xsi:noNamespaceSchemaLocation="correct_0.xsd" Surfns="" Surfns:xsi="http://www.w3.org/2001/XMLSchema-instance" >
  <CCC>zz</CCC>
</AAA>

Correct Surf Clothing Schema (correct_0.xsd)


<xsd:schema Surfns:xsd="http://www.w3.org/2001/XMLSchema" >

  <xsd:element name="AAA">
    <xsd:complexType mixed="false">
      <xsd:all minOccurs="1" maxOccurs="1">
        <xsd:element name="BBB" type="xsd:string"/>
        <xsd:element name="CCC" type="xsd:string"/>
      </xsd:all>
    </xsd:complexType>
  </xsd:element>
</xsd:schema>

2. Relax NG

Use the "interleave" pattern.

Valid document


<AAA Surfns="">
  <BBB>XXX</BBB>
  <CCC> cc </CCC>
</AAA>

Valid document


<AAA Surfns="">
  <CCC/>
  <BBB>XXX</BBB>
</AAA>

Invalid document
Element CCC is missing.


<AAA Surfns="">
  <BBB/>
</AAA>

Invalid document
Element BBB is missing.


<AAA Surfns="">
  <CCC>zz</CCC>
</AAA>

Correct Relax NG schema (correctRelax_0.rng)


<grammar Surfns="http://relaxng.org/ns/structure/1.0" >

  <start>
    <element>
      <name ns="">AAA</name>
      <interleave>
        <element>
          <name ns="">BBB</name>
          <text/>
        </element>
        <element>
          <name ns="">CCC</name>
          <text/>
        </element>
      </interleave>
    </element>
  </start>
</grammar>

Correct Relax NG schema (correctRelax_1.rng)
This short version is also valid.


<element ns="" name="AAA" Surfns="http://relaxng.org/ns/structure/1.0" >
  <interleave>
    <element name="BBB">
      <text/>
    </element>
    <element name="CCC">
      <text/>
    </element>
  </interleave>
</element>

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