CTK/Libs/CommandLineModules/Core/Resources/ctkCmdLineModule.xsd

<?xml version="1.0"?>

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

  <!--
  ===================================================================
    EXECUTABLE
      Root element 
  ===================================================================
  -->
  <xsd:element name="executable">
    <xsd:complexType>
      <xsd:sequence>
      
        <!-- 'title' and 'description' elements are required -->
        <xsd:element maxOccurs="1" minOccurs="0" name="category" type="xsd:string"/>
        <xsd:element maxOccurs="1" name="title" type="xsd:string"/>
        <xsd:element maxOccurs="1" name="description" type="xsd:string"/>
        <xsd:element maxOccurs="1" minOccurs="0" name="version" type="xsd:string"/>
        <xsd:element maxOccurs="1" minOccurs="0" name="documentation-url" type="xsd:string"/>
        <xsd:element maxOccurs="1" minOccurs="0" name="license" type="xsd:string"/>
        <xsd:element maxOccurs="1" minOccurs="0" name="contributor" type="xsd:string"/>
        <xsd:element maxOccurs="1" minOccurs="0" name="acknowledgements" type="xsd:string"/>
        
        <!-- Parameter group elements -->
        <xsd:element maxOccurs="unbounded" name="parameters" type="parameters"/>
      </xsd:sequence>
    </xsd:complexType>
  </xsd:element>

  <!--
  ===================================================================
    PARAMETER GROUP
  ===================================================================
  -->
  <xsd:complexType name="parameters">
    <xsd:sequence>
    
      <!-- Required elements for a parameter group -->
      <xsd:element name="label" type="xsd:string"/>
      <xsd:element name="description" type="xsd:string"/>
      
      <!-- At least one parameter definition is required in the group -->
      <xsd:choice maxOccurs="unbounded">
        <xsd:element name="integer" type="scalarType"/>
        <xsd:element name="integer-vector" type="scalarVectorType"/>
        <xsd:element name="boolean" type="paramType"/>
        <xsd:element name="float" type="scalarType"/>
        <xsd:element name="float-vector" type="scalarVectorType"/>
        <xsd:element name="double" type="scalarType"/>
        <xsd:element name="double-vector" type="scalarVectorType"/>
        <xsd:element name="string" type="multipleType"/>
        <xsd:element name="string-vector" type="paramType"/>
        <xsd:element name="point" type="pointType"/>
        <xsd:element name="region" type="pointType"/>
        <xsd:element name="string-enumeration" type="enumerationType"/>
        <xsd:element name="integer-enumeration" type="enumerationType"/>
        <xsd:element name="float-enumeration" type="enumerationType"/>
        <xsd:element name="double-enumeration" type="enumerationType"/>
        <xsd:element name="file" type="fileType"/>
        <xsd:element name="directory" type="multipleType"/>
        <xsd:element name="image" type="imageType"/>
        <xsd:element name="geometry" type="geometryType"/>
        <!--
        <xsd:element name="transform" type="transformType"/>
        <xsd:element name="table" type="tableType"/>
        <xsd:element name="measurement" type="measurementType"/>
        -->
      </xsd:choice>
      
    </xsd:sequence>
    
    <!-- Parameter group attributes -->
    <xsd:attribute default="false" name="advanced" type="xsd:boolean"/>
  </xsd:complexType>

  <!--
  ===================================================================
    PARAMETER
      Defines common sub-elements and attributes.
  ===================================================================
  -->
  <xsd:complexType name="paramType">
    <xsd:sequence>

      <xsd:element name="name">
        <xsd:simpleType>
          <xsd:restriction base="xsd:string">
            <xsd:pattern value="[_a-zA-Z][_a-zA-Z0-9]*"/>
          </xsd:restriction>
        </xsd:simpleType>
      </xsd:element>

      <!-- either 'flag' or 'longflag' (or both) or 'index' are required -->
      <xsd:choice>
        <xsd:sequence>
          <xsd:element maxOccurs="1" name="flag" type="flagType"/>
          <xsd:element minOccurs="0" maxOccurs="1" name="longflag" type="longFlagType"/>
        </xsd:sequence>
        <xsd:element name="longflag" type="longFlagType"/>
        <xsd:element name="index" type="xsd:nonNegativeInteger"/>
      </xsd:choice>

      <xsd:element name="description" type="xsd:string"/>
      <xsd:element name="label" type="xsd:string"/>
      <xsd:element minOccurs="0" name="default" type="xsd:string"/>
      
      <!-- the 'channel' element is optional -->
      <xsd:element minOccurs="0" maxOccurs="1" name="channel">
        <xsd:simpleType>
          <xsd:restriction base="xsd:string">
            <xsd:enumeration value="input"/>
            <xsd:enumeration value="output"/>
          </xsd:restriction>
        </xsd:simpleType>
      </xsd:element>
      
    </xsd:sequence>
    
    <!-- parameter attributes -->
    <xsd:attribute default="false" name="hidden" type="xsd:boolean"/>
  </xsd:complexType>

  <!--
  ===================================================================
    SCALAR VECTOR 
      Extends paramType for vectors of integer, float, and double.
  ===================================================================
  -->
  <xsd:complexType name="scalarVectorType">
    <xsd:complexContent>
      <xsd:extension base="paramType">
        <xsd:sequence>
          <xsd:element minOccurs="0" name="constraints" type="constraintsType"/>
        </xsd:sequence>
      </xsd:extension>
    </xsd:complexContent>
  </xsd:complexType>

  <!--
  ===================================================================
    MULTIPLE PARAMETER 
      Extends paramType for parameters which can appear multiple times on the command line.
  ===================================================================
  -->
  <xsd:complexType name="multipleType">
    <xsd:complexContent>
      <xsd:extension base="paramType">
        <xsd:attribute default="false" name="multiple" type="xsd:boolean"/>
      </xsd:extension>
    </xsd:complexContent>
  </xsd:complexType>

  <!--
  ===================================================================
    SCALAR PARAMETER 
      Extends multipleType for scalar parameters with constraints (integer, float, double).
  ===================================================================
  -->
  <xsd:complexType name="scalarType">
    <xsd:complexContent>
      <xsd:extension base="multipleType">
        <xsd:sequence>
          <xsd:element minOccurs="0" name="constraints" type="constraintsType"/>
        </xsd:sequence>
      </xsd:extension>
    </xsd:complexContent>
  </xsd:complexType>
  
  <!--
  ===================================================================
    ENUMERATION PARAMETER 
      Extends paramType for scalar and string enumeration parameters (integer, float, double, string).
  ===================================================================
  -->
  <xsd:complexType name="enumerationType">
    <xsd:complexContent>
      <xsd:extension base="paramType">
        <xsd:sequence>
          <xsd:element maxOccurs="unbounded" name="element" type="xsd:string"/>
        </xsd:sequence>
      </xsd:extension>
    </xsd:complexContent>
  </xsd:complexType>

  <!--
  ===================================================================
    POINT PARAMETER 
      Extends multipleType for parameters with point-like values (point and region).
  ===================================================================
  -->
  <xsd:complexType name="pointType">
    <xsd:complexContent>
      <xsd:extension base="multipleType">
        <xsd:attribute name="coordinateSystem">
          <xsd:simpleType>
            <xsd:restriction base="xsd:string">
              <xsd:enumeration value="ras"/>
              <xsd:enumeration value="ijk"/>
              <xsd:enumeration value="lps"/>
            </xsd:restriction>
          </xsd:simpleType>
        </xsd:attribute>
      </xsd:extension>
    </xsd:complexContent>
  </xsd:complexType>
  
  <!--
  ===================================================================
    GEOMETRY PARAMETER 
      Extends multipleType for geometry parameters (geometry).
  ===================================================================
  -->
  <xsd:complexType name="geometryType">
    <xsd:complexContent>
      <xsd:extension base="multipleType">
        <xsd:attribute name="fileExtensions" type="xsd:string"/>
        <xsd:attribute name="type">
          <xsd:simpleType>
            <xsd:restriction base="xsd:string">
              <xsd:enumeration value="fiberbundle"/>
              <xsd:enumeration value="model"/>
            </xsd:restriction>
          </xsd:simpleType>
        </xsd:attribute>
      </xsd:extension>
    </xsd:complexContent>
  </xsd:complexType>
  
  <!--
  ===================================================================
    FILE PARAMETER 
      Extends channelType for parameters with input/output semantics and file extension
      information (file, image).
  ===================================================================
  -->
  <xsd:complexType name="fileType">
    <xsd:complexContent>
      <xsd:extension base="multipleType">
        <xsd:attribute name="fileExtensions" type="xsd:string"/>
      </xsd:extension>
    </xsd:complexContent>
  </xsd:complexType>

  <!--
  ===================================================================
    IMAGE PARAMETER 
      Extends fileType for image parameters (image).
  ===================================================================
  -->
  <xsd:complexType name="imageType">
    <xsd:complexContent>
      <xsd:extension base="fileType">
        <xsd:attribute name="type">
          <xsd:simpleType>
            <xsd:restriction base="xsd:string">
              <xsd:enumeration value="scalar"/>
              <xsd:enumeration value="label"/>
              <xsd:enumeration value="tensor"/>
              <xsd:enumeration value="diffusion-weighted"/>
              <xsd:enumeration value="vector"/>
              <xsd:enumeration value="model"/>
            </xsd:restriction>
          </xsd:simpleType>
        </xsd:attribute>
      </xsd:extension>
    </xsd:complexContent>
  </xsd:complexType>
  
  <!--
  ===================================================================
                     *****  UTILITY TYPES  *****
  ===================================================================
  -->
  
  <xsd:simpleType name="flagValueType">
    <xsd:restriction base="xsd:string">
      <xsd:pattern value="-?[a-zA-Z]"/>
    </xsd:restriction>
  </xsd:simpleType>

  <xsd:complexType name="flagType">
    <xsd:simpleContent>
      <xsd:extension base="flagValueType">
        <xsd:attribute name="alias" type="xsd:string"/>
        <xsd:attribute name="deprecatedalias" type="xsd:string"/>
      </xsd:extension>
    </xsd:simpleContent>
  </xsd:complexType>

  <xsd:simpleType name="longFlagValueType">
    <xsd:restriction base="xsd:string">
      <xsd:pattern value="-?-?[_a-zA-Z][_a-zA-Z0-9]*"/>
    </xsd:restriction>
  </xsd:simpleType>

  <xsd:complexType name="longFlagType">
    <xsd:simpleContent>
      <xsd:extension base="longFlagValueType">
        <xsd:attribute name="alias" type="xsd:string"/>
        <xsd:attribute name="deprecatedalias" type="xsd:string"/>
      </xsd:extension>
    </xsd:simpleContent>
  </xsd:complexType>

  <!-- constraints for scalar parameters (integer, double, float) -->
  <xsd:complexType name="constraintsType">
    <xsd:all>
      <xsd:element minOccurs="0" name="minimum" type="xsd:double"/>
      <xsd:element minOccurs="0" name="maximum" type="xsd:double"/>
      <xsd:element name="step" type="xsd:double"/>
    </xsd:all>
  </xsd:complexType>

</xsd:schema>