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<?xml version="1.0"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:exsl="http://exslt.org/common"
xmlns:set="http://exslt.org/sets"
exclude-result-prefixes="exsl set"
version="1.0">
<!-- ********************************************************************
$Id: html-rtf.xsl,v 1.3 2004/10/01 16:32:08 techtonik Exp $
********************************************************************
This file is part of the XSL DocBook Stylesheet distribution.
See ../README or http://nwalsh.com/docbook/xsl/ for copyright
and other information.
******************************************************************** -->
<!-- ==================================================================== -->
<!-- This module contains templates that match against HTML nodes. It is used
to post-process result tree fragments for some sorts of cleanup.
These templates can only ever be fired by a processor that supports
exslt:node-set(). -->
<!-- ==================================================================== -->
<!-- insert.html.p mode templates insert a particular RTF at the beginning
of the first paragraph in the primary RTF. -->
<xsl:template match="/" mode="insert.html.p">
<xsl:param name="mark" select="'?'"/>
<xsl:apply-templates mode="insert.html.p">
<xsl:with-param name="mark" select="$mark"/>
</xsl:apply-templates>
</xsl:template>
<xsl:template match="*" mode="insert.html.p">
<xsl:param name="mark" select="'?'"/>
<xsl:copy>
<xsl:copy-of select="@*"/>
<xsl:apply-templates mode="insert.html.p">
<xsl:with-param name="mark" select="$mark"/>
</xsl:apply-templates>
</xsl:copy>
</xsl:template>
<xsl:template xmlns:html="http://www.w3.org/1999/xhtml"
match="html:p|p" mode="insert.html.p">
<xsl:param name="mark" select="'?'"/>
<xsl:copy>
<xsl:copy-of select="@*"/>
<xsl:if test="not(preceding::p|preceding::html:p)">
<xsl:copy-of select="$mark"/>
</xsl:if>
<xsl:apply-templates mode="insert.html.p">
<xsl:with-param name="mark" select="$mark"/>
</xsl:apply-templates>
</xsl:copy>
</xsl:template>
<xsl:template match="text()|processing-instruction()|comment()" mode="insert.html.p">
<xsl:param name="mark" select="'?'"/>
<xsl:copy/>
</xsl:template>
<!-- ==================================================================== -->
<!-- insert.html.text mode templates insert a particular RTF at the beginning
of the first text-node in the primary RTF. -->
<xsl:template match="/" mode="insert.html.text">
<xsl:param name="mark" select="'?'"/>
<xsl:apply-templates mode="insert.html.text">
<xsl:with-param name="mark" select="$mark"/>
</xsl:apply-templates>
</xsl:template>
<xsl:template match="*" mode="insert.html.text">
<xsl:param name="mark" select="'?'"/>
<xsl:copy>
<xsl:copy-of select="@*"/>
<xsl:apply-templates mode="insert.html.text">
<xsl:with-param name="mark" select="$mark"/>
</xsl:apply-templates>
</xsl:copy>
</xsl:template>
<xsl:template match="text()|processing-instruction()|comment()" mode="insert.html.text">
<xsl:param name="mark" select="'?'"/>
<xsl:if test="not(preceding::text())">
<xsl:copy-of select="$mark"/>
</xsl:if>
<xsl:copy/>
</xsl:template>
<xsl:template match="processing-instruction()|comment()" mode="insert.html.text">
<xsl:param name="mark" select="'?'"/>
<xsl:copy/>
</xsl:template>
<!-- ==================================================================== -->
<!-- unwrap.p mode templates remove blocks from HTML p elements (and
other places where blocks aren't allowed) -->
<xsl:template name="unwrap.p">
<xsl:param name="p"/>
<xsl:choose>
<xsl:when test="function-available('exsl:node-set')
and function-available('set:leading')
and function-available('set:trailing')">
<xsl:apply-templates select="exsl:node-set($p)" mode="unwrap.p"/>
</xsl:when>
<xsl:otherwise>
<xsl:copy-of select="$p"/>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
<xsl:template xmlns:html="http://www.w3.org/1999/xhtml"
match="html:p|p" mode="unwrap.p">
<!-- xmlns:html is necessary for the xhtml stylesheet case -->
<xsl:variable name="blocks" xmlns:html="http://www.w3.org/1999/xhtml"
select="address|blockquote|div|hr|h1|h2|h3|h4|h5|h6
|layer|p|pre|table|dl|menu|ol|ul|form
|html:address|html:blockquote|html:div|html:hr
|html:h1|html:h2|html:h3|html:h4|html:h5|html:h6
|html:layer|html:p|html:pre|html:table|html:dl
|html:menu|html:ol|html:ul|html:form"/>
<xsl:choose>
<xsl:when test="$blocks">
<xsl:call-template name="unwrap.p.nodes">
<xsl:with-param name="wrap" select="."/>
<xsl:with-param name="first" select="1"/>
<xsl:with-param name="nodes" select="node()"/>
<xsl:with-param name="blocks" select="$blocks"/>
</xsl:call-template>
</xsl:when>
<xsl:otherwise>
<xsl:copy>
<xsl:copy-of select="@*"/>
<xsl:apply-templates mode="unwrap.p"/>
</xsl:copy>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
<xsl:template match="*" mode="unwrap.p">
<xsl:copy>
<xsl:copy-of select="@*"/>
<xsl:apply-templates mode="unwrap.p"/>
</xsl:copy>
</xsl:template>
<xsl:template match="text()|processing-instruction()|comment()" mode="unwrap.p">
<xsl:copy/>
</xsl:template>
<xsl:template name="unwrap.p.nodes">
<xsl:param name="wrap" select="."/>
<xsl:param name="first" select="0"/>
<xsl:param name="nodes"/>
<xsl:param name="blocks"/>
<xsl:variable name="block" select="$blocks[1]"/>
<!-- This template should never get called if these functions aren't available -->
<!-- but this test is still necessary so that processors don't choke on the -->
<!-- function calls if they don't support the set: functions -->
<xsl:if test="function-available('set:leading')
and function-available('set:trailing')">
<xsl:choose>
<xsl:when test="$blocks">
<xsl:variable name="leading" select="set:leading($nodes,$block)"/>
<xsl:variable name="trailing" select="set:trailing($nodes,$block)"/>
<xsl:if test="($wrap/@id and $first = 1) or $leading">
<xsl:element name="{local-name($wrap)}" namespace="{namespace-uri($wrap)}">
<xsl:for-each select="$wrap/@*">
<xsl:if test="$first != 0 or local-name(.) != 'id'">
<xsl:copy/>
</xsl:if>
</xsl:for-each>
<xsl:apply-templates select="$leading" mode="unwrap.p"/>
</xsl:element>
</xsl:if>
<xsl:apply-templates select="$block" mode="unwrap.p"/>
<xsl:if test="$trailing">
<xsl:call-template name="unwrap.p.nodes">
<xsl:with-param name="wrap" select="$wrap"/>
<xsl:with-param name="nodes" select="$trailing"/>
<xsl:with-param name="blocks" select="$blocks[position() > 1]"/>
</xsl:call-template>
</xsl:if>
</xsl:when>
<xsl:otherwise>
<xsl:if test="($wrap/@id and $first = 1) or $nodes">
<xsl:element name="{local-name($wrap)}" namespace="{namespace-uri($wrap)}">
<xsl:for-each select="$wrap/@*">
<xsl:if test="$first != 0 or local-name(.) != 'id'">
<xsl:copy/>
</xsl:if>
</xsl:for-each>
<xsl:apply-templates select="$nodes" mode="unwrap.p"/>
</xsl:element>
</xsl:if>
</xsl:otherwise>
</xsl:choose>
</xsl:if>
</xsl:template>
<!-- ==================================================================== -->
<!-- make.verbatim.mode replaces spaces and newlines -->
<xsl:template match="/" mode="make.verbatim.mode">
<xsl:apply-templates mode="make.verbatim.mode"/>
</xsl:template>
<xsl:template match="*" mode="make.verbatim.mode">
<xsl:copy>
<xsl:copy-of select="@*"/>
<xsl:apply-templates mode="make.verbatim.mode"/>
</xsl:copy>
</xsl:template>
<xsl:template match="processing-instruction()|comment()" mode="make.verbatim.mode">
<xsl:copy/>
</xsl:template>
<xsl:template match="text()" mode="make.verbatim.mode">
<xsl:variable name="text" select="translate(., ' ', ' ')"/>
<xsl:choose>
<xsl:when test="not(contains($text, '
'))">
<xsl:value-of select="$text"/>
</xsl:when>
<xsl:otherwise>
<xsl:variable name="len" select="string-length($text)"/>
<xsl:choose>
<xsl:when test="$len = 1">
<br/><xsl:text>
</xsl:text>
</xsl:when>
<xsl:otherwise>
<xsl:variable name="half" select="$len div 2"/>
<xsl:call-template name="make-verbatim-recursive">
<xsl:with-param name="text" select="substring($text, 1, $half)"/>
</xsl:call-template>
<xsl:call-template name="make-verbatim-recursive">
<xsl:with-param name="text"
select="substring($text, ($half + 1), $len)"/>
</xsl:call-template>
</xsl:otherwise>
</xsl:choose>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
<xsl:template name="make-verbatim-recursive">
<xsl:param name="text" select="''"/>
<xsl:choose>
<xsl:when test="not(contains($text, '
'))">
<xsl:value-of select="$text"/>
</xsl:when>
<xsl:otherwise>
<xsl:variable name="len" select="string-length($text)"/>
<xsl:choose>
<xsl:when test="$len = 1">
<br/><xsl:text>
</xsl:text>
</xsl:when>
<xsl:otherwise>
<xsl:variable name="half" select="$len div 2"/>
<xsl:call-template name="make-verbatim-recursive">
<xsl:with-param name="text" select="substring($text, 1, $half)"/>
</xsl:call-template>
<xsl:call-template name="make-verbatim-recursive">
<xsl:with-param name="text"
select="substring($text, ($half + 1), $len)"/>
</xsl:call-template>
</xsl:otherwise>
</xsl:choose>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
<!-- ==================================================================== -->
<!-- remove.empty.div mode templates remove empty blocks -->
<xsl:template name="remove.empty.div">
<xsl:param name="div"/>
<xsl:choose>
<xsl:when test="function-available('exsl:node-set')">
<xsl:apply-templates select="exsl:node-set($div)" mode="remove.empty.div"/>
</xsl:when>
<xsl:otherwise>
<xsl:copy-of select="$div"/>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
<xsl:template xmlns:html="http://www.w3.org/1999/xhtml"
match="html:p|p|html:div|div" mode="remove.empty.div">
<xsl:if test="node()">
<xsl:copy>
<xsl:copy-of select="@*"/>
<xsl:apply-templates mode="remove.empty.div"/>
</xsl:copy>
</xsl:if>
</xsl:template>
<xsl:template match="*" mode="remove.empty.div">
<xsl:copy>
<xsl:copy-of select="@*"/>
<xsl:apply-templates mode="remove.empty.div"/>
</xsl:copy>
</xsl:template>
<xsl:template match="text()|processing-instruction()|comment()" mode="remove.empty.div">
<xsl:copy/>
</xsl:template>
<!-- ==================================================================== -->
</xsl:stylesheet>
|
