<?xml version="1.0"?>
<xsl:stylesheet
version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:xsl-out="[irrelevant]">
<!-- OK, this is my first bash at an XSLT transformation for a master XML document defining how to transform elements in the course handbook source into HTML and LaTeX. Hmm, meta-stylesheet?! -->
<!-- <xsl:output method="text" encoding="ISO-8859-1" media-type="text/xml"/> -->
<xsl:output method="xml" encoding="ISO-8859-1" cdata-section-elements="html"/>
<!-- Produce HTML or LaTeX output? -->
<!-- <xsl:param name="format" select="'html'"/> -->
<xsl:param name="format">html</xsl:param>
<!-- Define an alias for the xsl namespace to avoid confusion when generating xsl: elemnts in the output of this stylesheet. -->
<xsl:namespace-alias stylesheet-prefix="xsl-out" result-prefix="xsl"/>
<xsl:variable name="newline">
<xsl:text>
</xsl:text>
</xsl:variable>
<xsl:variable name="space"><xsl:text> </xsl:text></xsl:variable>
<xsl:template match="/">
<xsl-out:stylesheet version="1.0">
<!-- root-level documents should say what type/class of document they are (lecture, tutorial, generic, ...). Do we want to call this a class or a type? -->
<!--
<xsl:variable name="doctype"><xsl:value-of select="/document/@type"/></xsl:variable>
-->
<xsl:choose>
<xsl:when test="$format='html'">
<!-- *** HTML Output *** -->
<!-- Old version: before using xsl:namespace-alias: -->
<!--
<xsl-out:element name="xsl:output">
<xsl-out:attribute name="method">html</xsl-out:attribute>
<xsl-out:attribute name="encoding">ISO-8859-1</xsl-out:attribute>
<xsl-out:attribute name="media-type">text/html</xsl-out:attribute>
<xsl-out:attribute name="doctype-public">-//W3C//DTD HTML 4.01 Transitional//EN</xsl-out:attribute>
</xsl-out:element>
-->
<!-- New, simplified version: -->
<xsl-out:output method="html" encoding="ISO-8859-1" media-type="text/html" doctype-public="-//W3C//DTD HTML 4.01 Transitional//EN"/>
<!-- Nope, includes can only appear as a child of xsl:stylesheet. -->
<!-- <xsl-out:include href="xml2html-root.xsl"/> -->
<xsl-out:template match="/document">
<HTML>
<HEAD>
<LINK REL="Stylesheet" HREF="http://info-nts-05.otago.ac.nz/info321/styles.css" TYPE="text/css"/>
<TITLE>
<xsl-out:apply-templates select="/document/title" mode="window-title"/>
</TITLE>
</HEAD>
<BODY>
<xsl-out:apply-templates/>
<!-- How best to approach this - certain elements that need special handling (e.g. title, author) shouldn't be passed through here as well. -->
<!-- How about we just match certain elements that we know can be handled safely, e.g. sections, paragraphs, ...? (...and their aliases?) -->
<!-- Are introductions just another section, or should there be an introduction element? -->
<!-- The solution is to get cleverer with our templates, e.g., multiple templates for <title> that have different match patterns (document/title, section/title). -->
<!-- We also need to define an empty template for the <id> element so that its contents get ignored. -->
<!-- Once these are done, we can just go apply-templates and forget about it. -->
<ADDRESS>
<xsl-out:apply-templates select="/document/copyright"/>
<!-- Could this not just be /document/id/cvs-id? It may be more efficient? -->
<xsl-out:apply-templates select="//id/cvs-id"/>
</ADDRESS>
</BODY>
</HTML>
</xsl-out:template>
</xsl:when>
<xsl:when test="$format='latex'">
<!-- *** LaTeX Source Output *** -->
<!-- Should this produce a LaTeX source fragment or an entire valid source document? -->
<!--
<xsl-out:element name="xsl:output">
<xsl-out:attribute name="method">text</xsl-out:attribute>
<xsl-out:attribute name="encoding">ISO-8859-1</xsl-out:attribute>
<xsl-out:attribute name="media-type">text/plain</xsl-out:attribute>
</xsl-out:element>
-->
<!--
<xsl-out:output method="text" encoding="UTF-8" media-type="text/plain"/>
-->
<xsl-out:output method="text" encoding="ISO-8859-1" media-type="text/plain"/>
<xsl-out:apply-templates select="section|paragraph|figure|itemised-list|enumerated-list"/>
</xsl:when>
<xsl:otherwise>
<xsl:message terminate="yes">
<xsl:text>Sorry, unknown format: </xsl:text><xsl:value-of select="$format"/>
</xsl:message>
</xsl:otherwise>
</xsl:choose>
<xsl:apply-templates/>
</xsl-out:stylesheet>
</xsl:template>
<!-- General-purpose template-producing template. -->
<!--<xsl:template match="template"><![CDATA[<xsl-out:template name="]]><xsl-out:value-of select="name"/><![CDATA[" match="]]><xsl-out:value-of select="match"/><![CDATA[">]]><xsl-out:copy-of select="*[local-name(.)=$format]"/><![CDATA[</xsl-out:template>]]></xsl-out:template>-->
<xsl:template match="template">
<xsl-out:template>
<!-- Much easier to just copy all attributes across verbatim rather -->
<!-- than copying named attributes, because we might want to use -->
<!-- attributes that weren't originally anticipated. -->
<!-- Might this be a problem in future? -->
<xsl:copy-of select="@*"/>
<!-- <xsl:if test="@name"> -->
<!-- <xsl:attribute name="name"><xsl:value-of select="@name"/></xsl:attribute> -->
<!-- </xsl:if> -->
<!-- <xsl:if test="@match"> -->
<!-- <xsl:attribute name="match"><xsl:value-of select="@match"/></xsl:attribute> -->
<!-- </xsl:if> -->
<xsl:copy-of select="*[name(.)=$format]/node()"/>
<!-- <xsl:copy-of select="node()"/> -->
<!--
<xsl:if test="$format='latex'">
<xsl:copy-of select="latex/*"/>
</xsl:if>
<xsl:if test="$format='html'">
<xsl:copy-of select="html/*"/>
</xsl:if>
-->
</xsl-out:template>
</xsl:template>
<!-- This template produces a template that calls another template, i.e. it implements a template alias. -->
<!-- The generated template probably doesn't need a name, but we'll put one in anyway. -->
<xsl:template match="alias">
<xsl-out:template>
<xsl:attribute name="name"><xsl:value-of select="@source"/></xsl:attribute>
<xsl:attribute name="match"><xsl:value-of select="@source"/></xsl:attribute>
<xsl-out:call-template>
<xsl:attribute name="name"><xsl:value-of select="@target"/></xsl:attribute>
</xsl-out:call-template>
</xsl-out:template>
</xsl:template>
<!-- This template produces a template for processing style-oriented markup, such as empahsis, foreign terms, and quotations. -->
<!--
<xsl:template match="d">
</xsl-out:template match>
-->
<!-- This template produces a template for processing an element that refers to a hyperlink. -->
<xsl:template match="hyperlink">
</xsl:template>
</xsl:stylesheet>
