<?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 schema module defines sets of attributes common to several elements
of presentation MathML.
Author: St&#233;phane Dalmas, INRIA.
</xs:documentation>

</xs:annotation>

<!– The mathematics style attributes. These attributes are valid on all

presentation token elements except "mspace" and "mglyph", and on no
other elements except "mstyle". -->

<xs:attributeGroup name=“Token-style.attrib”>

<xs:attribute name="mathvariant">
  <xs:simpleType>
    <xs:restriction base="xs:string">
        <xs:enumeration value="normal"/>
        <xs:enumeration value="bold"/>
        <xs:enumeration value="italic"/>
        <xs:enumeration value="bold-italic"/>
        <xs:enumeration value="double-struck"/>
        <xs:enumeration value="bold-fraktur"/>
        <xs:enumeration value="script"/>
        <xs:enumeration value="bold-script"/>
        <xs:enumeration value="fraktur"/>
        <xs:enumeration value="sans-serif"/>
        <xs:enumeration value="bold-sans-serif"/>
        <xs:enumeration value="sans-serif-italic"/>
        <xs:enumeration value="sans-serif-bold-italic"/>
        <xs:enumeration value="monospace"/>
    </xs:restriction>
  </xs:simpleType>
</xs:attribute>
<xs:attribute name="mathsize">
  <xs:simpleType>
    <xs:union memberTypes="simple-size length-with-unit"/>
  </xs:simpleType>
</xs:attribute>
<!-- For both of the following attributes the types should be
     more restricted -->
<xs:attribute name="mathcolor" type="xs:string"/>
<xs:attribute name="mathbackground" type="xs:string"/>

</xs:attributeGroup>

<!– These operators are all related to operators. They are valid on “mo”

and "mstyle". -->

<xs:attributeGroup name=“Operator.attrib”>

<!-- this attribute value is normally inferred from the position of
 the operator in its "<mrow"> -->
<xs:attribute name="form">
   <xs:simpleType>
     <xs:restriction base="xs:string">
       <xs:enumeration value="prefix"/>
       <xs:enumeration value="infix"/>
       <xs:enumeration value="postfix"/>
     </xs:restriction>
   </xs:simpleType>
</xs:attribute>
<!-- set by dictionnary, else it is "thickmathspace" -->
<xs:attribute name="lspace">
   <xs:simpleType>
      <xs:union memberTypes="length-with-unit named-space"/>
   </xs:simpleType>
</xs:attribute>    
<!-- set by dictionnary, else it is "thickmathspace" -->
<xs:attribute name="rspace">
   <xs:simpleType>
      <xs:union memberTypes="length-with-unit named-space"/>
   </xs:simpleType>
</xs:attribute>
<!-- set by dictionnary, else it is "false" -->
<xs:attribute name="fence" type="xs:boolean"/>
<!-- set by dictionnary, else it is "false" -->
<xs:attribute name="separator" type="xs:boolean"/>
<!-- set by dictionnary, else it is "false" -->
<xs:attribute name="stretchy" type="xs:boolean"/>
<!-- set by dictionnary, else it is "true" -->
<xs:attribute name="symmetric" type="xs:boolean"/>
<!-- set by dictionnary, else it is "false" -->
<xs:attribute name="movablelimits" type="xs:boolean"/>
<!-- set by dictionnary, else it is "false" -->
<xs:attribute name="accent" type="xs:boolean"/>
<!-- set by dictionnary, else it is "false" -->
<xs:attribute name="largeop" type="xs:boolean"/>
<xs:attribute name="minsize">
   <xs:simpleType>
      <xs:union memberTypes="length-with-unit named-space"/>
   </xs:simpleType>
</xs:attribute>
<xs:attribute name="maxsize">
   <xs:simpleType>
      <xs:union memberTypes="length-with-unit named-space infinity xs:float"/>
   </xs:simpleType>
</xs:attribute>

</xs:attributeGroup>

</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/.
-->