EDISchema-v4.xsd

<?xml version="1.0" encoding="UTF-8"?>
<!--
  Copyright 2020 xlate.io LLC, http://www.xlate.io

  Licensed under the Apache License, Version 2.0 (the "License"); you may not
  use this file except in compliance with the License.  You may obtain a copy
  of the License at

    http://www.apache.org/licenses/LICENSE-2.0

  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
  License for the specific language governing permissions and limitations under
  the License.
-->
<schema xmlns="http://www.w3.org/2001/XMLSchema" targetNamespace="http://xlate.io/EDISchema/v4" xmlns:tns="http://xlate.io/EDISchema/v4"
  elementFormDefault="qualified">

  <!-- Simple Types -->
  <simpleType name="nameType">
    <restriction base="ID">
      <pattern value="[A-Z][A-Z0-9]+"/>
    </restriction>
  </simpleType>

  <simpleType name="useType">
    <restriction base="string">
      <enumeration value="required"/>
      <enumeration value="optional"/>
      <enumeration value="prohibited"/>
    </restriction>
  </simpleType>

  <simpleType name="syntaxType">
    <restriction base="string">
      <enumeration value="single">
        <annotation>
          <documentation>One and only one</documentation>
        </annotation>
      </enumeration>
      <enumeration value="paired">
        <annotation>
          <documentation>All or none</documentation>
        </annotation>
      </enumeration>
      <enumeration value="required">
        <annotation>
          <documentation>One or more</documentation>
        </annotation>
      </enumeration>
      <enumeration value="exclusion">
        <annotation>
          <documentation>One or none</documentation>
        </annotation>
      </enumeration>
      <enumeration value="conditional">
        <annotation>
          <documentation>If first, then all</documentation>
        </annotation>
      </enumeration>
      <enumeration value="list">
        <annotation>
          <documentation>If first, then at least one more</documentation>
        </annotation>
      </enumeration>
      <enumeration value="firstonly">
        <annotation>
          <documentation>If first, then none of the others</documentation>
        </annotation>
      </enumeration>
    </restriction>
  </simpleType>

  <simpleType name="elementBaseType">
    <restriction base="string">
      <enumeration value="binary"/>
      <enumeration value="date"/>
      <enumeration value="decimal"/>
      <enumeration value="identifier"/>
      <enumeration value="numeric"/>
      <enumeration value="string"/>
      <enumeration value="time"/>
    </restriction>
  </simpleType>

  <simpleType name="controlCountType">
    <restriction base="string">
      <enumeration value="none"/>
      <enumeration value="controls"/>
      <enumeration value="segments"/>
    </restriction>
  </simpleType>

  <simpleType name="elementPositionType">
    <restriction base="decimal">
      <minInclusive value="1"/>
      <maxInclusive value="99.99"/>
      <pattern value="[0-9]+(\.[0-9]{1,2}){0,1}"></pattern>
    </restriction>
  </simpleType>

  <simpleType name="discriminatorType">
    <restriction base="tns:elementPositionType" />
  </simpleType>

  <simpleType name="positionType">
    <restriction base="nonNegativeInteger">
      <minInclusive value="1"/>
    </restriction>
  </simpleType>

  <!-- Complex Types -->
  <complexType name="baseType" abstract="true">
    <sequence>
      <element ref="tns:description" minOccurs="0" maxOccurs="1"/>
    </sequence>
    <attribute name="title" type="string" use="optional"/>
  </complexType>

  <complexType name="anyElementType">
    <complexContent>
      <extension base="tns:baseType">
        <attribute name="minOccurs" type="nonNegativeInteger" default="0">
          <annotation>
            <documentation>The minimum number of times an undefined element may occur at the declared location in the EDI structure.</documentation>
          </annotation>
        </attribute>
        <attribute name="maxOccurs" type="nonNegativeInteger" default="1">
          <annotation>
            <documentation>The maximum number of times an undefined element may occur at the declared location in the EDI structure.</documentation>
          </annotation>
        </attribute>
      </extension>
    </complexContent>
  </complexType>

  <complexType name="controlType" abstract="true">
    <complexContent>
      <extension base="tns:baseType">
        <attribute name="header" type="NCName" use="required">
          <annotation>
            <documentation>The name of the header segment for the control structure type</documentation>
          </annotation>
        </attribute>
        <attribute name="trailer" type="NCName" use="required">
          <annotation>
            <documentation>The name of the trailer segment for the control structure type</documentation>
          </annotation>
        </attribute>
        <attribute name="headerRefPosition" type="tns:elementPositionType">
          <annotation>
            <documentation>
              The element position in the header segment used as a control
              reference/number for the interchange, group, or transaction.
              Used together with attribute trailerRefPosition to ensure matching
              values.
            </documentation>
          </annotation>
        </attribute>
        <attribute name="trailerRefPosition" type="tns:elementPositionType">
          <annotation>
            <documentation>
              The element position in the trailer segment used as a control
              reference/number for the interchange, group, or transaction. The value
              received in the position identified by this attribute will be validated
              to match the value identified by the headerRefPosition in the preceding
              header segment.
              Used together with attribute headerRefPosition to ensure matching
              values.
            </documentation>
          </annotation>
        </attribute>
        <attribute name="trailerCountPosition" type="tns:elementPositionType">
          <annotation>
            <documentation>
              The element position in the trailer segment used as a control
              count for the interchange, group, or transaction.
              When used, attribute countType must also be specified.
            </documentation>
          </annotation>
        </attribute>
        <attribute name="countType" type="tns:controlCountType" default="none">
          <annotation>
            <documentation>
              The type of items being counted by the element identified by the
              trailerCountPosition element.
              When used, attribute trailerCountPosition must also be specified.
            </documentation>
          </annotation>
        </attribute>
      </extension>
    </complexContent>
  </complexType>

  <complexType name="transactionControlType">
    <complexContent>
      <extension base="tns:controlType">
        <attribute name="use" type="tns:useType" default="optional"/>
      </extension>
    </complexContent>
  </complexType>

  <complexType name="groupControlType">
    <complexContent>
      <extension base="tns:controlType">
        <sequence>
          <element name="transaction" type="tns:transactionControlType" minOccurs="0"/>
        </sequence>
        <attribute name="use" type="tns:useType" default="optional"/>
      </extension>
    </complexContent>
  </complexType>

  <attributeGroup name="referenceAttributeGroup">
    <attribute name="type" type="NCName">
      <annotation>
        <documentation>
          The name of the target type being referenced.
        </documentation>
      </annotation>
    </attribute>

    <attributeGroup ref="tns:occursAttributeGroup"/>
  </attributeGroup>

  <attributeGroup name="lengthAttributeGroup">
    <attribute name="minLength" type="nonNegativeInteger" default="1">
      <annotation>
        <documentation>
          The minimum length allowed for an element value to be valid.
        </documentation>
      </annotation>
    </attribute>

    <attribute name="maxLength" type="nonNegativeInteger" default="1">
      <annotation>
        <documentation>
          The maximum length allowed for an element value to be valid.
        </documentation>
      </annotation>
    </attribute>
  </attributeGroup>

  <attributeGroup name="occursAttributeGroup">
    <attribute name="minOccurs" type="nonNegativeInteger" default="0">
      <annotation>
        <documentation>
          The minimum number of times a type may occur at the declared location
          in the EDI structure.
        </documentation>
      </annotation>
    </attribute>

    <attribute name="maxOccurs" type="nonNegativeInteger" default="1">
      <annotation>
        <documentation>
          The maximum number of times a type may occur at the declared location
          in the EDI structure.
        </documentation>
      </annotation>
    </attribute>
  </attributeGroup>

  <attributeGroup name="versionAttributeGroup">
    <attribute name="minVersion" type="token">
      <annotation>
        <documentation>
          The minimum transaction version this schema version applies to.
        </documentation>
      </annotation>
    </attribute>

    <attribute name="maxVersion" type="token">
      <annotation>
        <documentation>
          The maximum transaction version this schema version applies to.
        </documentation>
      </annotation>
    </attribute>
  </attributeGroup>

  <attributeGroup name="implementationAttributeGroup">
    <attribute name="minOccurs" type="nonNegativeInteger">
      <annotation>
        <documentation>
          The minimum number of times a type may occur at the declared location
          in the EDI structure.
        </documentation>
      </annotation>
    </attribute>

    <attribute name="maxOccurs" type="nonNegativeInteger">
      <annotation>
        <documentation>
          The maximum number of times a type may occur at the declared location
          in the EDI structure.
        </documentation>
      </annotation>
    </attribute>
  </attributeGroup>

  <!-- Element Types -->
  <complexType name="elementStandard">
    <complexContent>
      <extension base="tns:baseType">
        <sequence>
          <element name="version" minOccurs="0" maxOccurs="unbounded">
            <complexType>
              <attributeGroup ref="tns:versionAttributeGroup"/>
              <attributeGroup ref="tns:occursAttributeGroup"/>
            </complexType>
          </element>
        </sequence>

        <attributeGroup ref="tns:referenceAttributeGroup"/>
      </extension>
    </complexContent>
  </complexType>

  <complexType name="elementImpl">
    <complexContent>
      <extension base="tns:baseType">
        <sequence>
          <element ref="tns:enumeration" minOccurs="0"/>
        </sequence>
        <attribute name="position" type="tns:positionType" use="required"/>
        <attributeGroup ref="tns:implementationAttributeGroup"/>
      </extension>
    </complexContent>
  </complexType>

  <!-- Composite Types -->
  <complexType name="compositeStandard">
    <complexContent>
      <extension base="tns:baseType">
        <sequence>
          <element name="version" minOccurs="0" maxOccurs="unbounded">
            <complexType>
              <attributeGroup ref="tns:versionAttributeGroup"/>
              <attributeGroup ref="tns:occursAttributeGroup"/>
            </complexType>
          </element>
        </sequence>

        <attributeGroup ref="tns:referenceAttributeGroup"/>
      </extension>
    </complexContent>
  </complexType>

  <complexType name="compositeImpl">
    <complexContent>
      <extension base="tns:baseType">
        <sequence>
          <element name="sequence" minOccurs="0">
            <annotation>
              <documentation>
                The ordered elements for a composite element implementation.
              </documentation>
            </annotation>
            <complexType>
              <sequence>
                <element name="element" type="tns:elementImpl" minOccurs="1" maxOccurs="unbounded"/>
              </sequence>
            </complexType>
          </element>
        </sequence>
        <attribute name="position" type="tns:positionType" use="required"/>
        <attributeGroup ref="tns:implementationAttributeGroup"/>
      </extension>
    </complexContent>
  </complexType>

  <!-- Segment Types -->
  <complexType name="segmentStandard">
    <complexContent>
      <extension base="tns:baseType">
        <attributeGroup ref="tns:referenceAttributeGroup"/>
      </extension>
    </complexContent>
  </complexType>

  <complexType name="segmentImpl">
    <complexContent>
      <extension base="tns:baseType">
        <sequence>
          <element name="sequence" minOccurs="0">
            <annotation>
              <documentation>
                The ordered elements and components for a segment implementation.
              </documentation>
            </annotation>
            <complexType>
              <sequence>
                <choice minOccurs="0" maxOccurs="unbounded">
                  <element name="element" type="tns:elementImpl"/>
                  <element name="composite" type="tns:compositeImpl"/>
                </choice>
              </sequence>
            </complexType>
          </element>
        </sequence>

        <attribute name="type" type="NCName" use="required">
          <annotation>
            <documentation>
              The name of the standard segment used at this position in the implementation.
              Must be a valid segment name that occurs in the same
              standard loop.
            </documentation>
          </annotation>
        </attribute>

        <attribute name="code" type="NMTOKEN" use="optional">
          <annotation>
            <documentation>
              Code used to identify a segment within a loop. May be useful when occurrences of a
              standard segment contain distinct information.
            </documentation>
          </annotation>
        </attribute>

        <attributeGroup ref="tns:implementationAttributeGroup"/>

        <attribute name="discriminator" type="tns:discriminatorType" use="optional">
          <annotation>
            <documentation>
              The element position in the segment used to identify an occurrence
              of a standard segment from other implementation occurrences. The
              element identified by the position given in this attribute must also specify an
              enumeration of values used only by this implementation and not used
              by any other implementations of the standard segment in the same implementation loop.
            </documentation>
          </annotation>
        </attribute>
      </extension>
    </complexContent>
  </complexType>

  <!-- Loop Types -->
  <complexType name="loopBase" abstract="true">
    <complexContent>
      <extension base="tns:baseType">
        <attribute name="minOccurs" type="nonNegativeInteger" default="0">
          <annotation>
            <documentation>
              The minimum number of times a loop may repeat. A value of 0 (zero)
              indicates that the loop is optional.

              When used in a loop defined
              within an implementation,
              the value may not be less than the value set on the standard loop referenced
              by the implementation loop's 'type'
              attribute.
            </documentation>
          </annotation>
        </attribute>

        <attribute name="maxOccurs" type="nonNegativeInteger" default="1">
          <annotation>
            <documentation>
              The maximum number of times a loop may repeat.
              When used in a loop defined within an implementation, the value
              may not be greater than
              the value set on the standard loop referenced
              by the implementation loop's 'type' attribute.
            </documentation>
          </annotation>
        </attribute>
      </extension>
    </complexContent>
  </complexType>

  <complexType name="loopStandard">
    <complexContent>
      <extension base="tns:loopBase">
        <sequence>
          <element name="sequence">
            <annotation>
              <documentation>
                The ordered list of segments and sub-loops contained in this
                loop.
              </documentation>
            </annotation>
            <complexType>
              <choice maxOccurs="unbounded">
                <element name="segment" type="tns:segmentStandard"/>
                <element name="loop" type="tns:loopStandard" minOccurs="0"/>
              </choice>
            </complexType>
          </element>

          <element ref="tns:syntax" minOccurs="0" maxOccurs="unbounded"/>
        </sequence>

        <attribute name="code" type="NMTOKEN" use="required">
          <annotation>
            <documentation>
              Code used to uniquely identify a loop within the transaction/message.
            </documentation>
          </annotation>
        </attribute>

        <attribute name="levelIdPosition" type="tns:elementPositionType">
          <annotation>
            <documentation>
              The element position in the loop's first segment used to identify a
              hierarchical level in the context of hierarchical nested loops.
              When used, attribute parentId must also be specified.
            </documentation>
          </annotation>
        </attribute>

        <attribute name="parentIdPosition" type="tns:elementPositionType">
          <annotation>
            <documentation>
              The element position in the loop's first segment used to identify a
              hierarchical parent level in the context of hierarchical nested loops.
              When used, attribute levelId must also be specified.
            </documentation>
          </annotation>
        </attribute>
      </extension>
    </complexContent>
  </complexType>

  <complexType name="loopImpl">
    <complexContent>
      <extension base="tns:loopBase">
        <sequence>
          <element name="sequence" minOccurs="0">
            <annotation>
              <documentation>
                The ordered list of segments and sub-loops contained in this
                loop.
              </documentation>
            </annotation>
            <complexType>
              <choice maxOccurs="unbounded">
                <element name="segment" type="tns:segmentImpl"/>
                <element name="loop" type="tns:loopImpl" minOccurs="0"/>
              </choice>
            </complexType>
          </element>
        </sequence>

        <attribute name="type" type="NMTOKEN" use="required">
          <annotation>
            <documentation>
              The identifier (code attribute) of the standard loop this loop
              implements.
            </documentation>
          </annotation>
        </attribute>

        <attribute name="code" type="NMTOKEN" use="required">
          <annotation>
            <documentation>
              Code used to uniquely identify a loop implementation within the
              transaction/message implementation.
            </documentation>
          </annotation>
        </attribute>

        <attribute name="discriminator" type="tns:discriminatorType">
          <annotation>
            <documentation>
              The element position in the loop's first segment used to identify an
              implementation of a standard loop from other implementations. The
              element identified by the position given in this attribute must also specify an
              enumeration of values used only by this implementation and not used
              by any other implementations of the standard loop at the same level of the
              transaction.
            </documentation>
          </annotation>
        </attribute>
      </extension>
    </complexContent>
  </complexType>

  <!-- Elements -->
  <element name="schema">
    <complexType>
      <sequence>
        <element ref="tns:include" minOccurs="0" maxOccurs="unbounded">
          <annotation>
            <documentation>Optional reference to another schema file to include.</documentation>
          </annotation>
        </element>

        <choice minOccurs="0">
          <element ref="tns:interchange"/>

          <sequence>
            <annotation>
              <documentation>The transaction standard and optional implementation details</documentation>
            </annotation>
            <element ref="tns:transaction"/>
            <element ref="tns:implementation" minOccurs="0"/>
          </sequence>

          <sequence>
            <annotation>
              <documentation>
                The transaction implementation details. When
                implementation is used without an associated
                transaction element, the transaction must
                have been declared in an 'include'd schema.
              </documentation>
            </annotation>
            <element ref="tns:implementation"/>
          </sequence>
        </choice>

        <choice id="typeChoice" maxOccurs="unbounded">
          <element ref="tns:elementType" maxOccurs="unbounded"/>
          <element ref="tns:compositeType" minOccurs="0" maxOccurs="unbounded"/>
          <element ref="tns:segmentType" maxOccurs="unbounded"/>
        </choice>
      </sequence>
    </complexType>
  </element>

  <element name="include">
    <complexType>
      <attribute name="schemaLocation" type="anyURI" use="required"/>
    </complexType>
  </element>

  <element name="interchange">
    <complexType>
      <complexContent>
        <extension base="tns:controlType">
          <sequence>
            <element name="sequence">
              <complexType>
                <sequence>
                  <element name="segment" type="tns:segmentStandard" minOccurs="0" maxOccurs="unbounded"/>
                  <element name="group" type="tns:groupControlType" minOccurs="0"/>
                  <element name="transaction" type="tns:transactionControlType" minOccurs="0"/>
                </sequence>
              </complexType>
            </element>

            <element ref="tns:syntax" minOccurs="0" maxOccurs="unbounded"/>
          </sequence>
        </extension>
      </complexContent>
    </complexType>
  </element>

  <element name="transaction">
    <complexType>
      <complexContent>
        <extension base="tns:baseType">
          <sequence>
            <element name="sequence">
              <annotation>
                <documentation>
                  The ordered list of segments and sub-loops contained at the
                  top-level of this transaction.
                </documentation>
              </annotation>
              <complexType>
                <choice maxOccurs="unbounded">
                  <element name="segment" type="tns:segmentStandard"/>
                  <element name="loop" type="tns:loopStandard" minOccurs="0"/>
                </choice>
              </complexType>
            </element>
            <element ref="tns:syntax" minOccurs="0" maxOccurs="unbounded"/>
          </sequence>
        </extension>
      </complexContent>
    </complexType>
  </element>

  <element name="implementation">
    <complexType>
      <complexContent>
        <extension base="tns:baseType">
          <sequence>
            <element name="sequence">
              <annotation>
                <documentation>
                  The ordered list of segments and sub-loops contained at the
                  top-level of a transaction implementation.
                </documentation>
              </annotation>
              <complexType>
                <choice maxOccurs="unbounded">
                  <element name="segment" type="tns:segmentImpl"/>
                  <element name="loop" type="tns:loopImpl" minOccurs="0"/>
                </choice>
              </complexType>
            </element>
          </sequence>
        </extension>
      </complexContent>
    </complexType>
  </element>

  <element name="elementType">
    <complexType>
      <complexContent>
        <extension base="tns:baseType">
          <sequence>
            <element ref="tns:enumeration" minOccurs="0"/>
            <element name="version" minOccurs="0" maxOccurs="unbounded">
              <complexType>
                <sequence>
                  <element ref="tns:enumeration" minOccurs="0"/>
                </sequence>

                <attributeGroup ref="tns:versionAttributeGroup"/>
                <attributeGroup ref="tns:lengthAttributeGroup"/>
              </complexType>
            </element>
          </sequence>

          <attribute name="name" type="tns:nameType" use="required">
            <annotation>
              <documentation>
                Code used to uniquely identify an element definition to be referenced by
                compositeType and segmentType elements within this schema.
                This value will be returned by an EDIStreamReader's `getReferenceCode` method
                when no `code` attribute has been specified.
              </documentation>
            </annotation>
          </attribute>

          <attribute name="code" type="NMTOKEN" use="optional">
            <annotation>
              <documentation>
                Code used to identify an element externally. This value will
                be returned by an EDIStreamReader's `getReferenceCode` method.
              </documentation>
            </annotation>
          </attribute>

          <attribute name="number">
            <annotation>
              <documentation>*DEPRECATED* Use the `code` attribute to provide an element reference number.</documentation>
            </annotation>
            <simpleType>
              <restriction base="nonNegativeInteger">
                <minInclusive value="1"/>
                <maxInclusive value="9999"/>
              </restriction>
            </simpleType>
          </attribute>

          <attribute name="base" type="tns:elementBaseType" use="optional" default="string">
            <annotation>
              <documentation>
                Identifies the element data type
              </documentation>
            </annotation>
          </attribute>

          <attribute name="scale" use="optional" type="nonNegativeInteger" default="0">
            <annotation>
              <documentation>
                For numeric base types only, scale is the number of digits to the right of an implied decimal point. When not specified, the
                default value of zero is used (i.e. the data type is integer)
              </documentation>
            </annotation>
          </attribute>

          <attributeGroup ref="tns:lengthAttributeGroup"/>
        </extension>
      </complexContent>
    </complexType>
  </element>

  <element name="description" type="string"/>

  <element name="enumeration">
    <complexType>
      <sequence>
        <element name="value" maxOccurs="unbounded">
          <complexType>
            <simpleContent>
              <extension base="token">
                <attribute name="title" type="string"/>
              </extension>
            </simpleContent>
          </complexType>
        </element>
      </sequence>
    </complexType>
  </element>

  <element name="compositeType">
    <complexType>
      <complexContent>
        <extension base="tns:baseType">
          <sequence>
            <element name="sequence">
              <annotation>
                <documentation>
                  The ordered elements and syntax restrictions for a composite element.
                </documentation>
              </annotation>
              <complexType>
                <choice minOccurs="1" maxOccurs="unbounded">
                  <element name="element" type="tns:elementStandard" minOccurs="1" maxOccurs="unbounded"/>
                  <element name="any" type="tns:anyElementType">
                    <annotation>
                      <documentation>
                        May be used to declare that any component element may occur in this composite type up
                        to the maximum number given by
                        maxOccurs. The value of minOccurs defines the number of
                        undefined component elements that MUST occur in the composite.
                      </documentation>
                    </annotation>
                  </element>
                </choice>
              </complexType>
            </element>
            <element ref="tns:syntax" minOccurs="0" maxOccurs="unbounded"/>
          </sequence>

          <attribute name="name" type="tns:nameType" use="required">
            <annotation>
              <documentation>
                Code used to uniquely identify a composite element definition to be referenced by
                segmentType elements within this schema. This
                value will be returned by an EDIStreamReader's `getReferenceCode` method.
              </documentation>
            </annotation>
          </attribute>
        </extension>
      </complexContent>
    </complexType>
  </element>

  <element name="segmentType">
    <annotation>
      <documentation>Used to declare a segment</documentation>
    </annotation>
    <complexType>
      <complexContent>
        <extension base="tns:baseType">
          <sequence>
            <element name="sequence" minOccurs="0">
              <annotation>
                <documentation>
                  The ordered elements, components, and syntax restrictions for a segment.
                </documentation>
              </annotation>
              <complexType>
                <choice minOccurs="0" maxOccurs="unbounded">
                  <element name="element" type="tns:elementStandard">
                    <annotation>
                      <documentation>
                        Defines a reference to a standard element definition.
                      </documentation>
                    </annotation>
                  </element>
                  <element name="composite" type="tns:compositeStandard"/>
                  <element name="any" type="tns:anyElementType">
                    <annotation>
                      <documentation>
                        May be used to declare that any element or composite may occur in this segment type up
                        to the maximum number given by
                        maxOccurs. The value of minOccurs defines the number of
                        undefined elements that MUST occur in the segment at this position. Elements that
                        repeat
                        may occur up to 99 times and are not affected by the value of the maxOccurs attribute.
                      </documentation>
                    </annotation>
                  </element>
                </choice>
              </complexType>
            </element>
            <element ref="tns:syntax" minOccurs="0" maxOccurs="unbounded"/>
          </sequence>

          <attribute name="name" use="required">
            <annotation>
              <documentation>
                Name of the segment. Also referred to as the segment's tag. This is the two or three
                character string used to identify a segment.
              </documentation>
            </annotation>
            <simpleType>
              <restriction base="tns:nameType">
                <maxLength value="3"/>
              </restriction>
            </simpleType>
          </attribute>
        </extension>
      </complexContent>
    </complexType>
  </element>

  <element name="syntax">
    <complexType>
      <sequence>
        <element name="position" type="tns:positionType" maxOccurs="unbounded"/>
      </sequence>
      <attribute name="type" type="tns:syntaxType"/>
    </complexType>
  </element>
</schema>