OpenMath.github.io/standard/om11/omobj.xsd at master · OpenMath/OpenMath.github.io · GitHub

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<?xml version="1.0"?>

<!-- OpenMath Schema
  Version 0.1
  Authors: Olga Caprotti and David Carlisle
  Copyright 2001 2003 Openmath
  $Id: omobj.xsd,v 1.4 2003/03/26 15:58:05 david Exp $
-->


<xs:schema
  xmlns:xs="http://www.w3.org/2001/XMLSchema"
  xmlns="http://www.openmath.org/OpenMath"
  targetNamespace="http://www.openmath.org/OpenMath"
  elementFormDefault="qualified">


<xs:element name="OMS">
<xs:complexType>
<xs:attribute name="name" type="omSymbname" use="required"/>
<xs:attribute name="cd" type="omCdname" use="required"/>
</xs:complexType>
</xs:element>

<xs:simpleType name="omSymbname">
<xs:restriction  base="xs:string">
<xs:pattern value="[A-Za-z][A-Za-z0-9_]*" />
</xs:restriction>
</xs:simpleType>

<xs:simpleType name="omCdname">
<xs:restriction  base="xs:string">
<xs:pattern value="[a-z][a-z0-9_]*"/>
</xs:restriction>
</xs:simpleType>

<xs:element name="OMV" >
<xs:complexType>
<xs:attribute name="name" type="omVariable" use="required" />
</xs:complexType>
</xs:element>

<xs:simpleType name="omVariable">
<xs:restriction  base="xs:string">
<xs:pattern value="([A-Za-z0-9\+=(),\-\./:\?!#$%\*;@\[\]\^_`\{\|\}])+"/>
</xs:restriction>
</xs:simpleType>

<xs:element name="OMI" type="omInteger" />

<!-- should derive from int not string,  -->
<xs:simpleType name="omInteger" >
<xs:restriction base="xs:string">
<xs:pattern value="\s*(-\s?)?[0-9]+(\s[0-9]+)*\s*" />
</xs:restriction>
</xs:simpleType>


<xs:element name="OMF">
<xs:complexType>
<xs:attribute name="dec" type="omDecFloat" use="optional" />
<xs:attribute name="hex" type="omHexFloat" use="optional" />
</xs:complexType>
</xs:element>

<xs:simpleType name="omDecFloat" >
<xs:restriction base="xs:string">
<xs:pattern value="(-?)([0-9]+)?(\.[0-9]+)?(e([+\-]?)[0-9]+)?" />
</xs:restriction>
</xs:simpleType>

<xs:simpleType name="omHexFloat">
<xs:restriction base="xs:string">
<xs:pattern value="[0-9A-F]+" />
</xs:restriction>
</xs:simpleType>

<xs:element name="OMB" type="xs:base64Binary" />


<xs:group  name="omElement" >
<xs:choice>
<xs:element ref="OMS"/>
<xs:element ref="OMV"/>
<xs:element ref="OMI"/>
<xs:element ref="OMB"/>
<xs:element ref="OMSTR"/>
<xs:element ref="OMF"/>
<xs:element ref="OMA"/>
<xs:element ref="OMBIND"/>
<xs:element ref="OME"/>
<xs:element ref="OMATTR"/>
</xs:choice>
</xs:group>

<xs:element name="OMSTR" type="xs:string"/>

<xs:element name="OMA" >
<xs:complexType>
<xs:group ref="omElement"  maxOccurs="unbounded"/>
</xs:complexType>
</xs:element>


<xs:element name="OMBIND">
<xs:complexType>
<xs:sequence>
<xs:group ref="omElement" />
<xs:element ref="OMBVAR" />
<xs:group ref="omElement"/>
</xs:sequence>
</xs:complexType>
</xs:element>


<xs:element name="OMBVAR">
<xs:complexType>
<xs:choice maxOccurs="unbounded">
<xs:element ref="OMV"/>
<xs:element name="OMATTR" type="omAttrVar"/>
</xs:choice>
</xs:complexType>
</xs:element>


<xs:element name="OME">
<xs:complexType>
<xs:sequence>
<xs:element ref="OMS"/>
<xs:group ref="omElement"  minOccurs="0" maxOccurs="unbounded" />
</xs:sequence>
</xs:complexType>
</xs:element>


<xs:element name="OMATTR">
<xs:complexType>
<xs:sequence>
<xs:element ref="OMATP"/>
<xs:group ref="omElement"/>
</xs:sequence>
</xs:complexType>
</xs:element>

<!-- arrange that the OMATTR branch must eventually end in an OMV -->
<xs:complexType name="omAttrVar">
<xs:sequence>
<xs:element ref="OMATP"/>
<xs:choice>
<xs:element ref="OMV"/>
<xs:element name="OMATTR" type="omAttrVar"/>
</xs:choice>
</xs:sequence>
</xs:complexType>


<xs:element name="OMATP">
<xs:complexType>
<xs:sequence maxOccurs="unbounded">
<xs:element ref="OMS"/>
<xs:group ref="omElement"/>
</xs:sequence>
</xs:complexType>
</xs:element>


<xs:element name="OMOBJ" type="OMOBJType"/>
<xs:complexType name="OMOBJType">
<xs:group ref="omElement" maxOccurs="unbounded"/>
</xs:complexType>


</xs:schema>