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<?xml version="1.0" encoding="UTF-8"?>
<!--
This is the Mathematical Markup Language (MathML) 3.0, an XML
application for describing mathematical notation and capturing
both its structure and content.
Copyright 1998-2009 W3C (MIT, ERCIM, Keio)
Use and distribution of this code are permitted under the terms
W3C Software Notice and License
http://www.w3.org/Consortium/Legal/2002/copyright-software-20021231
-->
<grammar ns="http://www.w3.org/1998/Math/MathML" xmlns="http://relaxng.org/ns/structure/1.0" datatypeLibrary="http://www.w3.org/2001/XMLSchema-datatypes">
<start>
<ref name="math"/>
</start>
<define name="math">
<element name="math">
<ref name="math.attributes"/>
<zeroOrMore>
<ref name="MathExpression"/>
</zeroOrMore>
</element>
</define>
<define name="MathExpression">
<ref name="semantics"/>
</define>
<define name="NonMathMLAtt">
<attribute>
<anyName>
<except>
<nsName ns=""/>
<nsName/>
</except>
</anyName>
<data type="string"/>
</attribute>
</define>
<define name="CommonDeprecatedAtt">
<optional>
<attribute name="other"/>
</optional>
</define>
<define name="CommonAtt">
<optional>
<attribute name="id">
<data type="ID"/>
</attribute>
</optional>
<optional>
<attribute name="xref"/>
</optional>
<optional>
<attribute name="class">
<data type="NMTOKENS"/>
</attribute>
</optional>
<optional>
<attribute name="style">
<data type="string"/>
</attribute>
</optional>
<optional>
<attribute name="href">
<data type="anyURI"/>
</attribute>
</optional>
<ref name="CommonDeprecatedAtt"/>
<zeroOrMore>
<ref name="NonMathMLAtt"/>
</zeroOrMore>
</define>
<define name="math.attributes">
<ref name="CommonAtt"/>
<optional>
<attribute name="display">
<choice>
<value>block</value>
<value>inline</value>
</choice>
</attribute>
</optional>
<optional>
<attribute name="maxwidth">
<ref name="length"/>
</attribute>
</optional>
<optional>
<attribute name="overflow">
<choice>
<value>linebreak</value>
<value>scroll</value>
<value>elide</value>
<value>truncate</value>
<value>scale</value>
</choice>
</attribute>
</optional>
<optional>
<attribute name="altimg">
<data type="anyURI"/>
</attribute>
</optional>
<optional>
<attribute name="altimg-width">
<ref name="length"/>
</attribute>
</optional>
<optional>
<attribute name="altimg-height">
<ref name="length"/>
</attribute>
</optional>
<optional>
<attribute name="altimg-valign">
<choice>
<ref name="length"/>
<value>top</value>
<value>middle</value>
<value>bottom</value>
</choice>
</attribute>
</optional>
<optional>
<attribute name="alttext"/>
</optional>
<optional>
<attribute name="cdgroup">
<data type="anyURI"/>
</attribute>
</optional>
<ref name="math.deprecatedattributes"/>
</define>
<!--
the mathml3-presentation schema adds additional attributes
to the math element, all those valid on mstyle
-->
<define name="math.deprecatedattributes">
<optional>
<attribute name="mode">
<data type="string"/>
</attribute>
</optional>
<optional>
<attribute name="macros">
<data type="string"/>
</attribute>
</optional>
</define>
<define name="name">
<attribute name="name">
<data type="NCName"/>
</attribute>
</define>
<define name="cd">
<attribute name="cd">
<data type="NCName"/>
</attribute>
</define>
<define name="src">
<optional>
<attribute name="src">
<data type="anyURI"/>
</attribute>
</optional>
</define>
<define name="annotation">
<element name="annotation">
<ref name="annotation.attributes"/>
<text/>
</element>
</define>
<define name="annotation-xml.model">
<zeroOrMore>
<choice>
<ref name="MathExpression"/>
<ref name="anyElement"/>
</choice>
</zeroOrMore>
</define>
<define name="anyElement">
<element>
<anyName>
<except>
<nsName/>
</except>
</anyName>
<zeroOrMore>
<choice>
<attribute>
<anyName/>
</attribute>
<text/>
<ref name="anyElement"/>
</choice>
</zeroOrMore>
</element>
</define>
<define name="annotation-xml">
<element name="annotation-xml">
<ref name="annotation.attributes"/>
<ref name="annotation-xml.model"/>
</element>
</define>
<define name="annotation.attributes">
<ref name="CommonAtt"/>
<optional>
<ref name="cd"/>
</optional>
<optional>
<ref name="name"/>
</optional>
<ref name="DefEncAtt"/>
<optional>
<ref name="src"/>
</optional>
</define>
<define name="DefEncAtt">
<optional>
<attribute name="encoding">
<data type="string"/>
</attribute>
</optional>
<optional>
<attribute name="definitionURL">
<data type="anyURI"/>
</attribute>
</optional>
</define>
<define name="semantics">
<element name="semantics">
<ref name="semantics.attributes"/>
<ref name="MathExpression"/>
<zeroOrMore>
<choice>
<ref name="annotation"/>
<ref name="annotation-xml"/>
</choice>
</zeroOrMore>
</element>
</define>
<define name="semantics.attributes">
<ref name="CommonAtt"/>
<ref name="DefEncAtt"/>
<optional>
<ref name="cd"/>
</optional>
<optional>
<ref name="name"/>
</optional>
</define>
<define name="length">
<data type="string">
<param name="pattern">\s*((-?[0-9]*(\.[0-9]*)?(e[mx]|in|cm|mm|p[xtc]|%)?)|(negative)?((very){0,2}thi(n|ck)|medium)mathspace)\s*</param>
</data>
</define>
</grammar>
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