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<?xml version="1.0"?>
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<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
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xmlns:exsl="http://exslt.org/common"
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xmlns:set="http://exslt.org/sets"
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exclude-result-prefixes="exsl set"
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version="1.0">
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<!-- ********************************************************************
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$Id: html-rtf.xsl 8345 2009-03-16 06:44:07Z bobstayton $
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********************************************************************
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This file is part of the XSL DocBook Stylesheet distribution.
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See ../README or http://docbook.sf.net/release/xsl/current/ for
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copyright and other information.
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******************************************************************** -->
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<!-- ==================================================================== -->
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<!-- This module contains templates that match against HTML nodes. It is used
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to post-process result tree fragments for some sorts of cleanup.
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These templates can only ever be fired by a processor that supports
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exslt:node-set(). -->
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<!-- ==================================================================== -->
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<!-- insert.html.p mode templates insert a particular RTF at the beginning
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of the first paragraph in the primary RTF. -->
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<xsl:template match="/" mode="insert.html.p">
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<xsl:param name="mark" select="'?'"/>
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<xsl:apply-templates mode="insert.html.p">
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<xsl:with-param name="mark" select="$mark"/>
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</xsl:apply-templates>
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</xsl:template>
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<xsl:template match="*" mode="insert.html.p">
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<xsl:param name="mark" select="'?'"/>
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<xsl:copy>
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<xsl:copy-of select="@*"/>
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<xsl:apply-templates mode="insert.html.p">
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<xsl:with-param name="mark" select="$mark"/>
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</xsl:apply-templates>
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</xsl:copy>
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</xsl:template>
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<xsl:template xmlns:html="http://www.w3.org/1999/xhtml"
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match="html:p|p" mode="insert.html.p">
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<xsl:param name="mark" select="'?'"/>
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<xsl:copy>
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<xsl:copy-of select="@*"/>
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<xsl:if test="not(preceding::p|preceding::html:p)">
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<xsl:copy-of select="$mark"/>
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</xsl:if>
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<xsl:apply-templates mode="insert.html.p">
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<xsl:with-param name="mark" select="$mark"/>
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</xsl:apply-templates>
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</xsl:copy>
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</xsl:template>
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<xsl:template match="text()|processing-instruction()|comment()" mode="insert.html.p">
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<xsl:param name="mark" select="'?'"/>
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<xsl:copy/>
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</xsl:template>
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<!-- ==================================================================== -->
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<!-- insert.html.text mode templates insert a particular RTF at the beginning
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of the first text-node in the primary RTF. -->
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<xsl:template match="/" mode="insert.html.text">
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<xsl:param name="mark" select="'?'"/>
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<xsl:apply-templates mode="insert.html.text">
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<xsl:with-param name="mark" select="$mark"/>
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</xsl:apply-templates>
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</xsl:template>
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<xsl:template match="*" mode="insert.html.text">
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<xsl:param name="mark" select="'?'"/>
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<xsl:copy>
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<xsl:copy-of select="@*"/>
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<xsl:apply-templates mode="insert.html.text">
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<xsl:with-param name="mark" select="$mark"/>
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</xsl:apply-templates>
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</xsl:copy>
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</xsl:template>
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<xsl:template match="text()|processing-instruction()|comment()" mode="insert.html.text">
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<xsl:param name="mark" select="'?'"/>
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<xsl:if test="not(preceding::text())">
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<xsl:copy-of select="$mark"/>
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</xsl:if>
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<xsl:copy/>
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</xsl:template>
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<xsl:template match="processing-instruction()|comment()" mode="insert.html.text">
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<xsl:param name="mark" select="'?'"/>
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<xsl:copy/>
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</xsl:template>
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<!-- ==================================================================== -->
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<!-- unwrap.p mode templates remove blocks from HTML p elements (and
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other places where blocks aren't allowed) -->
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<xsl:template name="unwrap.p">
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<xsl:param name="p"/>
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<xsl:choose>
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<xsl:when test="$exsl.node.set.available != 0
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and function-available('set:leading')
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and function-available('set:trailing')">
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<xsl:apply-templates select="exsl:node-set($p)" mode="unwrap.p"/>
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</xsl:when>
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<xsl:otherwise>
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<xsl:copy-of select="$p"/>
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</xsl:otherwise>
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</xsl:choose>
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</xsl:template>
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<xsl:template xmlns:html="http://www.w3.org/1999/xhtml"
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match="html:p|p" mode="unwrap.p">
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<!-- xmlns:html is necessary for the xhtml stylesheet case -->
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<xsl:variable name="blocks" xmlns:html="http://www.w3.org/1999/xhtml"
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select="address|blockquote|div|hr|h1|h2|h3|h4|h5|h6
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|layer|p|pre|table|dl|menu|ol|ul|form
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|html:address|html:blockquote|html:div|html:hr
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|html:h1|html:h2|html:h3|html:h4|html:h5|html:h6
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|html:layer|html:p|html:pre|html:table|html:dl
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|html:menu|html:ol|html:ul|html:form"/>
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<xsl:choose>
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<xsl:when test="$blocks">
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<xsl:call-template name="unwrap.p.nodes">
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<xsl:with-param name="wrap" select="."/>
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<xsl:with-param name="first" select="1"/>
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<xsl:with-param name="nodes" select="node()"/>
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<xsl:with-param name="blocks" select="$blocks"/>
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</xsl:call-template>
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</xsl:when>
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<xsl:otherwise>
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<xsl:copy>
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<xsl:copy-of select="@*"/>
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<xsl:apply-templates mode="unwrap.p"/>
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</xsl:copy>
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</xsl:otherwise>
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</xsl:choose>
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</xsl:template>
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<xsl:template match="*" mode="unwrap.p">
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<xsl:copy>
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<xsl:copy-of select="@*"/>
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<xsl:apply-templates mode="unwrap.p"/>
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</xsl:copy>
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</xsl:template>
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<xsl:template match="text()|processing-instruction()|comment()" mode="unwrap.p">
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<xsl:copy/>
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</xsl:template>
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<xsl:template name="unwrap.p.nodes">
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<xsl:param name="wrap" select="."/>
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<xsl:param name="first" select="0"/>
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<xsl:param name="nodes"/>
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<xsl:param name="blocks"/>
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<xsl:variable name="block" select="$blocks[1]"/>
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<!-- This template should never get called if these functions aren't available -->
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<!-- but this test is still necessary so that processors don't choke on the -->
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<!-- function calls if they don't support the set: functions -->
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<xsl:if test="function-available('set:leading')
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and function-available('set:trailing')">
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<xsl:choose>
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<xsl:when test="$blocks">
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<xsl:variable name="leading" select="set:leading($nodes,$block)"/>
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<xsl:variable name="trailing" select="set:trailing($nodes,$block)"/>
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<xsl:if test="(($wrap/@id or $wrap/@xml:id)
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and $first = 1) or $leading">
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<xsl:element name="{local-name($wrap)}" namespace="{namespace-uri($wrap)}">
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<xsl:for-each select="$wrap/@*">
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<xsl:if test="$first != 0 or local-name(.) != 'id'">
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<xsl:copy/>
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</xsl:if>
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</xsl:for-each>
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<xsl:apply-templates select="$leading" mode="unwrap.p"/>
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</xsl:element>
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</xsl:if>
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<xsl:apply-templates select="$block" mode="unwrap.p"/>
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<xsl:if test="$trailing">
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<xsl:call-template name="unwrap.p.nodes">
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<xsl:with-param name="wrap" select="$wrap"/>
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<xsl:with-param name="nodes" select="$trailing"/>
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<xsl:with-param name="blocks" select="$blocks[position() > 1]"/>
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</xsl:call-template>
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</xsl:if>
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</xsl:when>
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<xsl:otherwise>
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<xsl:if test="(($wrap/@id or $wrap/@xml:id) and $first = 1) or $nodes">
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<xsl:element name="{local-name($wrap)}" namespace="{namespace-uri($wrap)}">
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<xsl:for-each select="$wrap/@*">
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<xsl:if test="$first != 0 or local-name(.) != 'id'">
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<xsl:copy/>
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</xsl:if>
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</xsl:for-each>
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<xsl:apply-templates select="$nodes" mode="unwrap.p"/>
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</xsl:element>
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</xsl:if>
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</xsl:otherwise>
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</xsl:choose>
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</xsl:if>
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</xsl:template>
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<!-- ==================================================================== -->
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<!-- make.verbatim.mode replaces spaces and newlines -->
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<xsl:template match="/" mode="make.verbatim.mode">
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<xsl:apply-templates mode="make.verbatim.mode"/>
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</xsl:template>
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<xsl:template match="*" mode="make.verbatim.mode">
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<xsl:copy>
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<xsl:copy-of select="@*"/>
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<xsl:apply-templates mode="make.verbatim.mode"/>
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</xsl:copy>
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</xsl:template>
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<xsl:template match="processing-instruction()|comment()" mode="make.verbatim.mode">
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<xsl:copy/>
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</xsl:template>
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<xsl:template match="text()" mode="make.verbatim.mode">
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<xsl:variable name="text" select="translate(., ' ', ' ')"/>
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<xsl:choose>
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<xsl:when test="not(contains($text, '
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<xsl:value-of select="$text"/>
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</xsl:when>
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<xsl:otherwise>
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<xsl:variable name="len" select="string-length($text)"/>
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<xsl:choose>
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<xsl:when test="$len = 1">
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<br/><xsl:text>
</xsl:text>
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</xsl:when>
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<xsl:otherwise>
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<xsl:variable name="half" select="$len div 2"/>
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<xsl:call-template name="make-verbatim-recursive">
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<xsl:with-param name="text" select="substring($text, 1, $half)"/>
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</xsl:call-template>
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<xsl:call-template name="make-verbatim-recursive">
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<xsl:with-param name="text"
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select="substring($text, ($half + 1), $len)"/>
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</xsl:call-template>
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</xsl:otherwise>
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</xsl:choose>
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</xsl:otherwise>
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</xsl:choose>
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</xsl:template>
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<xsl:template name="make-verbatim-recursive">
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<xsl:param name="text" select="''"/>
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<xsl:choose>
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<xsl:when test="not(contains($text, '
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<xsl:value-of select="$text"/>
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</xsl:when>
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<xsl:otherwise>
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<xsl:variable name="len" select="string-length($text)"/>
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<xsl:choose>
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<xsl:when test="$len = 1">
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<br/><xsl:text>
</xsl:text>
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</xsl:when>
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<xsl:otherwise>
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<xsl:variable name="half" select="$len div 2"/>
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<xsl:call-template name="make-verbatim-recursive">
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<xsl:with-param name="text" select="substring($text, 1, $half)"/>
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</xsl:call-template>
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<xsl:call-template name="make-verbatim-recursive">
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<xsl:with-param name="text"
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select="substring($text, ($half + 1), $len)"/>
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</xsl:call-template>
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</xsl:otherwise>
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</xsl:choose>
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</xsl:otherwise>
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</xsl:choose>
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</xsl:template>
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<!-- ==================================================================== -->
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<!-- remove.empty.div mode templates remove empty blocks -->
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<xsl:template name="remove.empty.div">
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<xsl:param name="div"/>
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<xsl:choose>
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<xsl:when test="$exsl.node.set.available != 0">
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<xsl:apply-templates select="exsl:node-set($div)" mode="remove.empty.div"/>
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</xsl:when>
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<xsl:otherwise>
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<xsl:copy-of select="$div"/>
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</xsl:otherwise>
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</xsl:choose>
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</xsl:template>
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<xsl:template xmlns:html="http://www.w3.org/1999/xhtml"
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match="html:p|p|html:div|div" mode="remove.empty.div">
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<xsl:if test="node()">
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<xsl:copy>
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<xsl:copy-of select="@*"/>
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<xsl:apply-templates mode="remove.empty.div"/>
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</xsl:copy>
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</xsl:if>
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</xsl:template>
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<xsl:template match="*" mode="remove.empty.div">
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<xsl:copy>
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<xsl:copy-of select="@*"/>
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<xsl:apply-templates mode="remove.empty.div"/>
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</xsl:copy>
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</xsl:template>
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<xsl:template match="text()|processing-instruction()|comment()" mode="remove.empty.div">
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<xsl:copy/>
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</xsl:template>
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<!-- ==================================================================== -->
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</xsl:stylesheet>
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