re-doing the XPath case study with a better approach

git-svn-id: https://slps.svn.sourceforge.net/svnroot/slps@817 ab42f6e0-554d-0410-b580-99e487e6eeb2

shared/xsd/ldf.xsd

@@ -178,7 +178,7 @@
 		<xsd:complexType>
 			<xsd:sequence>
 				<xsd:element name="title" type="xsd:string"/>
-				<xsd:choice>
+				<xsd:choice minOccurs="0">
 					<xsd:element name="version" type="xsd:string"/>
 					<xsd:element name="edition" type="xsd:string"/>
 				</xsd:choice>

topics/documents/xpath/Makefile

@@ -1,8 +1,10 @@
 build:
+	xsltproc spec2ldf.xslt xpath-pp.xml > xpath1.ldf
 
 get:
 	curl -k http://www.w3.org/TR/1999/REC-xpath-19991116.xml >xpath1.xml
 	curl -k http://www.w3.org/TR/2007/REC-xpath20-20070123/xpath20.xml >xpath2.xml
+	curl -k http://www.w3.org/XML/1998/06/xmlspec-v20.dtd > xmlspec-v20.dtd
 
 clean:
 	*~

topics/documents/xpath/spec2ldf.xslt

@@ -0,0 +1,80 @@
+<?xml version="1.0"?>
+<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:bgf="http://planet-sl.org/bgf" xmlns:ldf="http://planet-sl.org/ldf" version="1.0">
+	<xsl:output method="xml" encoding="UTF-8"/>
+	<xsl:template match="/spec">
+		<ldf:document xmlns:ldf="http://planet-sl.org/ldf">
+			<ldf:title-page>
+				<xsl:if test="header/w3c-doctype">
+					<ldf:body>w3c</ldf:body>
+					<number>
+						<xsl:value-of select="header/w3c-designation"/>
+					</number>
+				</xsl:if>
+				<ldf:metainfo>
+					<xsl:copy-of select="header/title"/>
+					<xsl:for-each select="header/authlist/author">
+						<author>
+							<xsl:value-of select="name"/>
+						</author>
+					</xsl:for-each>
+				</ldf:metainfo>
+				<xsl:choose>
+					<xsl:when test="header/w3c-doctype = 'W3C Recommendation'">
+						<ldf:status>approved</ldf:status>
+					</xsl:when>
+					<xsl:otherwise>
+						<ldf:status>unknown</ldf:status>
+					</xsl:otherwise>
+				</xsl:choose>
+				<xsl:choose>
+					<xsl:when test="header/version = 'Version 1.0'">
+						<version>1.0</version>
+					</xsl:when>
+					<xsl:when test="header/version = 'Version 2.0'">
+						<version>2.0</version>
+					</xsl:when>
+					<xsl:otherwise>
+						<version>
+							<xsl:value-of select="header/version"/>
+						</version>
+					</xsl:otherwise>
+				</xsl:choose>
+				<xsl:for-each select="header/prevlocs/loc">
+					<ldf:previous>
+						<title>
+							<xsl:choose>
+								<xsl:when test="substring(text(),1,7) = 'http://'">
+									<xsl:value-of select="substring-after(substring-after(substring-after(text(),'http://www.w3.org/'),'/'),'/')"/>
+								</xsl:when>
+								<xsl:otherwise>
+									<xsl:value-of select="text()"/>
+								</xsl:otherwise>
+							</xsl:choose>
+						</title>
+						<uri>
+							<xsl:value-of select="@href"/>
+						</uri>
+					</ldf:previous>
+				</xsl:for-each>
+				<date>
+					<xsl:value-of select="header/pubdate/day"/>
+					<xsl:text> </xsl:text>
+					<xsl:value-of select="header/pubdate/month"/>
+					<xsl:text> </xsl:text>
+					<xsl:value-of select="header/pubdate/year"/>
+				</date>
+			</ldf:title-page>
+			<ldf:part>
+				<role>front-matter</role>
+				<ldf:metainfo>
+					<title>Status of this document</title>
+				</ldf:metainfo>
+				<content>
+					<simple-section>
+						<xsl:copy-of select="header/status"/>
+					</simple-section>
+				</content>
+			</ldf:part>
+		</ldf:document>
+	</xsl:template>
+</xsl:stylesheet>