<?xml version=“1.0” encoding=“UTF-8”?>

<xs:schema

 xmlns:xs="http://www.w3.org/2001/XMLSchema"
 xmlns="http://www.w3.org/1998/Math/MathML"
 targetNamespace="http://www.w3.org/1998/Math/MathML"
 elementFormDefault="qualified"
>

<xs:annotation>

<xs:documentation>
This is the XML schema module for the token elements of the 
presentation part of MathML.
Author: St&#233;phane Dalmas, INRIA.
</xs:documentation>

</xs:annotation>

<!– The content of presentation token elements is either normal

characters, "mglyph" ones or alignment marks -->

<xs:group name=“Glyph-alignmark.class”>

<xs:choice>
  <xs:element ref="malignmark"/>
  <xs:element ref="mglyph"/>
</xs:choice>

</xs:group>

<!– “mi” –>

<!– “mi” is supposed to have a default value of its “mathvariant” attribute

set to "italic" -->

<xs:attributeGroup name=“mi.attlist”>

<xs:attributeGroup ref="Token-style.attrib"/>
<xs:attributeGroup ref="Common.attrib"/>

</xs:attributeGroup>

<xs:complexType name=“mi.type” mixed=“true”>

<xs:group ref="Glyph-alignmark.class" minOccurs="0" maxOccurs="unbounded"/>
<xs:attributeGroup ref="mi.attlist"/>

</xs:complexType>

<xs:element name=“mi” type=“mi.type”/>

<!– “mo” –>

<xs:attributeGroup name=“mo.attlist”>

<xs:attributeGroup ref="Operator.attrib"/>
<xs:attributeGroup ref="Token-style.attrib"/>
<xs:attributeGroup ref="Common.attrib"/>

</xs:attributeGroup>

<xs:complexType name=“mo.type” mixed=“true”>

<xs:group ref="Glyph-alignmark.class" minOccurs="0" maxOccurs="unbounded"/>
<xs:attributeGroup ref="mo.attlist"/>

</xs:complexType>

<xs:element name=“mo” type=“mo.type”/>

<!– “mn” –>

<xs:attributeGroup name=“mn.attlist”>

<xs:attributeGroup ref="Token-style.attrib"/>
<xs:attributeGroup ref="Common.attrib"/>

</xs:attributeGroup>

<xs:complexType name=“mn.type” mixed=“true”>

<xs:group ref="Glyph-alignmark.class" minOccurs="0" maxOccurs="unbounded"/>
<xs:attributeGroup ref="mi.attlist"/>

</xs:complexType>

<xs:element name=“mn” type=“mn.type”/>

<!– “mtext” –>

<xs:attributeGroup name=“mtext.attlist”>

<xs:attributeGroup ref="Token-style.attrib"/>
<xs:attributeGroup ref="Common.attrib"/>

</xs:attributeGroup>

<xs:complexType name=“mtext.type” mixed=“true”>

<xs:group ref="Glyph-alignmark.class" minOccurs="0" maxOccurs="unbounded"/>
<xs:attributeGroup ref="mtext.attlist"/>

</xs:complexType>

<xs:element name=“mtext” type=“mtext.type”/>

<!– “ms” –>

<xs:attributeGroup name=“ms.attlist”>

<!-- the values of "lquote" or "rquote" are not restricted to be
     one character strings... -->
<xs:attribute name="lquote" type="xs:string" default="&quot;"/>
<xs:attribute name="rquote" type="xs:string" default="&quot;"/>
<xs:attributeGroup ref="Token-style.attrib"/>
<xs:attributeGroup ref="Common.attrib"/>

</xs:attributeGroup>

<xs:complexType name=“ms.type” mixed=“true”>

<xs:group ref="Glyph-alignmark.class" minOccurs="0" maxOccurs="unbounded"/>
<xs:attributeGroup ref="ms.attlist"/>

</xs:complexType>

<xs:element name=“ms” type=“ms.type”/>

<!– And the group of any token –>

<xs:group name=“Presentation-token.class”>

<xs:choice> 
  <xs:element ref="mi"/>
  <xs:element ref="mo"/>
  <xs:element ref="mn"/>
  <xs:element ref="mtext"/>
  <xs:element ref="ms"/>
</xs:choice>

</xs:group>

</xs:schema>

<!–

Copyright &#251; 2002 World Wide Web Consortium, (Massachusetts Institute
of Technology, Institut National de Recherche en Informatique et en
Automatique, Keio University). All Rights Reserved. See
http://www.w3.org/Consortium/Legal/.
-->