mxml/www/docfiles/XMLSchema.html
Michael R Sweet 61ba926ecc Prep for 2.1.
2004-11-13 18:26:38 +00:00

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<H2><A NAME="5_3">XML Schema</A></H2>
<P>Listing 4-1 shows the XML schema file<VAR> mxmldoc.xsd</VAR> which is
included with Mini-XML. This schema file can be used to convert the XML
files produced by <TT>mxmldoc</TT> into other formats.</P>
<CENTER>
<TABLE bgcolor="#cccccc" border="1" cellpadding="5" cellspacing="0" width="80%">
<CAPTION align="bottom"><I> Listing 4-1, XML Schema File &quot;mxmldoc.xsd&quot;</I>
</CAPTION>
<TR><TD>
<PRE>
&lt;xsd:schema xmlns:xsd=&quot;http://www.w3.org/2001/XMLSchema&quot;&gt;
&lt;xsd:annotation&gt;
&lt;xsd:documentation xml:lang=&quot;en&quot;&gt;
Mini-XML 2.0 documentation schema for mxmldoc output.
Copyright 2003-2004 by Michael Sweet.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
&lt;/xsd:documentation&gt;
&lt;/xsd:annotation&gt;
&lt;!-- basic element definitions --&gt;
&lt;xsd:element name=&quot;argument&quot; type=&quot;argumentType&quot;/&gt;
&lt;xsd:element name=&quot;class&quot; type=&quot;classType&quot;/&gt;
&lt;xsd:element name=&quot;constant&quot; type=&quot;constantType&quot;/&gt;
&lt;xsd:element name=&quot;description&quot; type=&quot;xsd:string&quot;/&gt;
&lt;xsd:element name=&quot;enumeration&quot; type=&quot;enumerationType&quot;/&gt;
&lt;xsd:element name=&quot;function&quot; type=&quot;functionType&quot;/&gt;
&lt;xsd:element name=&quot;mxmldoc&quot; type=&quot;mxmldocType&quot;/&gt;
&lt;xsd:element name=&quot;namespace&quot; type=&quot;namespaceType&quot;/&gt;
&lt;xsd:element name=&quot;returnvalue&quot; type=&quot;returnvalueType&quot;/&gt;
&lt;xsd:element name=&quot;seealso&quot; type=&quot;identifierList&quot;/&gt;
&lt;xsd:element name=&quot;struct&quot; type=&quot;structType&quot;/&gt;
&lt;xsd:element name=&quot;typedef&quot; type=&quot;typedefType&quot;/&gt;
&lt;xsd:element name=&quot;type&quot; type=&quot;xsd:string&quot;/&gt;
&lt;xsd:element name=&quot;union&quot; type=&quot;unionType&quot;/&gt;
&lt;xsd:element name=&quot;variable&quot; type=&quot;variableType&quot;/&gt;
&lt;!-- descriptions of complex elements --&gt;
&lt;xsd:complexType name=&quot;argumentType&quot;&gt;
&lt;xsd:sequence&gt;
&lt;xsd:element ref=&quot;type&quot; minOccurs=&quot;1&quot; maxOccurs=&quot;1&quot;/&gt;
&lt;xsd:element ref=&quot;description&quot; minOccurs=&quot;0&quot; maxOccurs=&quot;1&quot;/&gt;
&lt;/xsd:sequence&gt;
&lt;xsd:attribute name=&quot;default&quot; type=&quot;xsd:string&quot; use=&quot;optional&quot;/&gt;
&lt;xsd:attribute name=&quot;name&quot; type=&quot;identifier&quot; use=&quot;required&quot;/&gt;
&lt;xsd:attribute name=&quot;direction&quot; type=&quot;direction&quot; use=&quot;optional&quot; default=&quot;I&quot;/&gt;
&lt;/xsd:complexType&gt;
&lt;xsd:complexType name=&quot;classType&quot;&gt;
&lt;xsd:sequence&gt;
&lt;xsd:element ref=&quot;description&quot; minOccurs=&quot;0&quot; maxOccurs=&quot;1&quot;/&gt;
&lt;xsd:choice minOccurs=&quot;0&quot; maxOccurs=&quot;unbounded&quot;&gt;
&lt;xsd:element ref=&quot;class&quot;/&gt;
</PRE>
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<CENTER>
<TABLE bgcolor="#cccccc" border="1" cellpadding="5" cellspacing="0" width="80%">
<CAPTION align="bottom"><I> Listing 4-1, XML Schema File &quot;mxmldoc.xsd&quot;
(con't)</I></CAPTION>
<TR><TD>
<PRE>
&lt;xsd:element ref=&quot;enumeration&quot;/&gt;
&lt;xsd:element ref=&quot;function&quot;/&gt;
&lt;xsd:element ref=&quot;struct&quot;/&gt;
&lt;xsd:element ref=&quot;typedef&quot;/&gt;
&lt;xsd:element ref=&quot;union&quot;/&gt;
&lt;xsd:element ref=&quot;variable&quot;/&gt;
&lt;/xsd:choice&gt;
&lt;/xsd:sequence&gt;
&lt;xsd:attribute name=&quot;name&quot; type=&quot;identifier&quot; use=&quot;required&quot;/&gt;
&lt;xsd:attribute name=&quot;parent&quot; type=&quot;xsd:string&quot; use=&quot;optional&quot;/&gt;
&lt;/xsd:complexType&gt;
&lt;xsd:complexType name=&quot;constantType&quot;&gt;
&lt;xsd:sequence&gt;
&lt;xsd:element ref=&quot;description&quot; minOccurs=&quot;0&quot; maxOccurs=&quot;1&quot;/&gt;
&lt;/xsd:sequence&gt;
&lt;xsd:attribute name=&quot;name&quot; type=&quot;identifier&quot; use=&quot;required&quot;/&gt;
&lt;/xsd:complexType&gt;
&lt;xsd:complexType name=&quot;enumerationType&quot;&gt;
&lt;xsd:sequence&gt;
&lt;xsd:element ref=&quot;description&quot; minOccurs=&quot;0&quot; maxOccurs=&quot;1&quot;/&gt;
&lt;xsd:element ref=&quot;constant&quot; minOccurs=&quot;1&quot; maxOccurs=&quot;unbounded&quot;/&gt;
&lt;/xsd:sequence&gt;
&lt;xsd:attribute name=&quot;name&quot; type=&quot;identifier&quot; use=&quot;required&quot;/&gt;
&lt;/xsd:complexType&gt;
&lt;xsd:complexType name=&quot;functionType&quot;&gt;
&lt;xsd:sequence&gt;
&lt;xsd:element ref=&quot;returnvalue&quot; minOccurs=&quot;0&quot; maxOccurs=&quot;1&quot;/&gt;
&lt;xsd:element ref=&quot;description&quot; minOccurs=&quot;0&quot; maxOccurs=&quot;1&quot;/&gt;
&lt;xsd:element ref=&quot;argument&quot; minOccurs=&quot;1&quot; maxOccurs=&quot;unbounded&quot;/&gt;
&lt;xsd:element ref=&quot;seealso&quot; minOccurs=&quot;0&quot; maxOccurs=&quot;1&quot;/&gt;
&lt;/xsd:sequence&gt;
&lt;xsd:attribute name=&quot;name&quot; type=&quot;identifier&quot; use=&quot;required&quot;/&gt;
&lt;xsd:attribute name=&quot;scope&quot; type=&quot;scope&quot; use=&quot;optional&quot;/&gt;
&lt;/xsd:complexType&gt;
&lt;xsd:complexType name=&quot;mxmldocType&quot;&gt;
&lt;xsd:choice minOccurs=&quot;0&quot; maxOccurs=&quot;unbounded&quot;&gt;
&lt;xsd:element ref=&quot;class&quot;/&gt;
&lt;xsd:element ref=&quot;enumeration&quot;/&gt;
&lt;xsd:element ref=&quot;function&quot;/&gt;
&lt;xsd:element ref=&quot;namespace&quot;/&gt;
&lt;xsd:element ref=&quot;struct&quot;/&gt;
&lt;xsd:element ref=&quot;typedef&quot;/&gt;
&lt;xsd:element ref=&quot;union&quot;/&gt;
&lt;xsd:element ref=&quot;variable&quot;/&gt;
&lt;/xsd:choice&gt;
&lt;/xsd:complexType&gt;
&lt;xsd:complexType name=&quot;namespaceType&quot;&gt;
&lt;xsd:sequence&gt;
&lt;xsd:element ref=&quot;description&quot; minOccurs=&quot;0&quot; maxOccurs=&quot;1&quot;/&gt;
&lt;xsd:choice minOccurs=&quot;0&quot; maxOccurs=&quot;unbounded&quot;&gt;
&lt;xsd:element ref=&quot;class&quot;/&gt;
&lt;xsd:element ref=&quot;enumeration&quot;/&gt;
&lt;xsd:element ref=&quot;function&quot;/&gt;
</PRE>
</TD></TR>
</TABLE>
</CENTER>
<!-- NEW PAGE -->
<CENTER>
<TABLE bgcolor="#cccccc" border="1" cellpadding="5" cellspacing="0" width="80%">
<CAPTION align="bottom"><I> Listing 4-1, XML Schema File &quot;mxmldoc.xsd&quot;
(con't)</I></CAPTION>
<TR><TD>
<PRE>
&lt;xsd:element ref=&quot;struct&quot;/&gt;
&lt;xsd:element ref=&quot;typedef&quot;/&gt;
&lt;xsd:element ref=&quot;union&quot;/&gt;
&lt;xsd:element ref=&quot;variable&quot;/&gt;
&lt;/xsd:choice&gt;
&lt;/xsd:sequence&gt;
&lt;xsd:attribute name=&quot;name&quot; type=&quot;identifier&quot; use=&quot;required&quot;/&gt;
&lt;/xsd:complexType&gt;
&lt;xsd:complexType name=&quot;returnvalueType&quot;&gt;
&lt;xsd:sequence&gt;
&lt;xsd:element ref=&quot;type&quot; minOccurs=&quot;1&quot; maxOccurs=&quot;1&quot;/&gt;
&lt;xsd:element ref=&quot;description&quot; minOccurs=&quot;0&quot; maxOccurs=&quot;1&quot;/&gt;
&lt;/xsd:sequence&gt;
&lt;/xsd:complexType&gt;
&lt;xsd:complexType name=&quot;structType&quot;&gt;
&lt;xsd:sequence&gt;
&lt;xsd:element ref=&quot;description&quot; minOccurs=&quot;0&quot; maxOccurs=&quot;1&quot;/&gt;
&lt;xsd:choice minOccurs=&quot;0&quot; maxOccurs=&quot;unbounded&quot;&gt;
&lt;xsd:element ref=&quot;variable&quot;/&gt;
&lt;xsd:element ref=&quot;function&quot;/&gt;
&lt;/xsd:choice&gt;
&lt;/xsd:sequence&gt;
&lt;xsd:attribute name=&quot;name&quot; type=&quot;identifier&quot; use=&quot;required&quot;/&gt;
&lt;/xsd:complexType&gt;
&lt;xsd:complexType name=&quot;typedefType&quot;&gt;
&lt;xsd:sequence&gt;
&lt;xsd:element ref=&quot;type&quot; minOccurs=&quot;1&quot; maxOccurs=&quot;1&quot;/&gt;
&lt;xsd:element ref=&quot;description&quot; minOccurs=&quot;0&quot; maxOccurs=&quot;1&quot;/&gt;
&lt;/xsd:sequence&gt;
&lt;xsd:attribute name=&quot;name&quot; type=&quot;identifier&quot; use=&quot;required&quot;/&gt;
&lt;/xsd:complexType&gt;
&lt;xsd:complexType name=&quot;unionType&quot;&gt;
&lt;xsd:sequence&gt;
&lt;xsd:element ref=&quot;description&quot; minOccurs=&quot;0&quot; maxOccurs=&quot;1&quot;/&gt;
&lt;xsd:element ref=&quot;variable&quot; minOccurs=&quot;0&quot; maxOccurs=&quot;unbounded&quot;/&gt;
&lt;/xsd:sequence&gt;
&lt;xsd:attribute name=&quot;name&quot; type=&quot;identifier&quot; use=&quot;required&quot;/&gt;
&lt;/xsd:complexType&gt;
&lt;xsd:complexType name=&quot;variableType&quot;&gt;
&lt;xsd:sequence&gt;
&lt;xsd:element ref=&quot;type&quot; minOccurs=&quot;1&quot; maxOccurs=&quot;1&quot;/&gt;
&lt;xsd:element ref=&quot;description&quot; minOccurs=&quot;0&quot; maxOccurs=&quot;1&quot;/&gt;
&lt;/xsd:sequence&gt;
&lt;xsd:attribute name=&quot;name&quot; type=&quot;identifier&quot; use=&quot;required&quot;/&gt;
&lt;/xsd:complexType&gt;
&lt;!-- data types --&gt;
&lt;xsd:simpleType name=&quot;direction&quot;&gt;
&lt;xsd:restriction base=&quot;xsd:string&quot;&gt;
&lt;xsd:enumeration value=&quot;I&quot;/&gt;
&lt;xsd:enumeration value=&quot;O&quot;/&gt;
&lt;xsd:enumeration value=&quot;IO&quot;/&gt;
&lt;/xsd:restriction&gt;
</PRE>
</TD></TR>
</TABLE>
</CENTER>
<!-- NEW PAGE -->
<CENTER>
<TABLE bgcolor="#cccccc" border="1" cellpadding="5" cellspacing="0" width="80%">
<CAPTION align="bottom"><I> Listing 4-1, XML Schema File &quot;mxmldoc.xsd&quot;
(con't)</I></CAPTION>
<TR><TD>
<PRE>
&lt;/xsd:simpleType&gt;
&lt;xsd:simpleType name=&quot;identifier&quot;&gt;
&lt;xsd:restriction base=&quot;xsd:string&quot;&gt;
&lt;xsd:pattern value=&quot;[a-zA-Z_(.]([a-zA-Z_(.,)* 0-9])*&quot;/&gt;
&lt;/xsd:restriction&gt;
&lt;/xsd:simpleType&gt;
&lt;xsd:simpleType name=&quot;identifierList&quot;&gt;
&lt;xsd:list itemType=&quot;identifier&quot;/&gt;
&lt;/xsd:simpleType&gt;
&lt;xsd:simpleType name=&quot;scope&quot;&gt;
&lt;xsd:restriction base=&quot;xsd:string&quot;&gt;
&lt;xsd:enumeration value=&quot;&quot;/&gt;
&lt;xsd:enumeration value=&quot;private&quot;/&gt;
&lt;xsd:enumeration value=&quot;protected&quot;/&gt;
&lt;xsd:enumeration value=&quot;public&quot;/&gt;
&lt;/xsd:restriction&gt;
&lt;/xsd:simpleType&gt;
&lt;/xsd:schema&gt;
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