105 lines
4.4 KiB
XML
105 lines
4.4 KiB
XML
<?xml version="1.0"?>
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<xsl:stylesheet version="1.0"
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xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
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xmlns:str="http://exslt.org/strings"
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xmlns:func="http://exslt.org/functions"
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xmlns:exsl="http://exslt.org/common"
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extension-element-prefixes="str exsl func">
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<func:function name="str:replace">
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<xsl:param name="string" select="''" />
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<xsl:param name="search" select="/.." />
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<xsl:param name="replace" select="/.." />
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<xsl:choose>
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<xsl:when test="not($string)">
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<func:result select="/.." />
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</xsl:when>
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<xsl:when test="function-available('exsl:node-set')">
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<!-- this converts the search and replace arguments to node sets
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if they are one of the other XPath types -->
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<xsl:variable name="search-nodes-rtf">
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<xsl:copy-of select="$search" />
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</xsl:variable>
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<xsl:variable name="replace-nodes-rtf">
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<xsl:copy-of select="$replace" />
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</xsl:variable>
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<xsl:variable name="replacements-rtf">
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<xsl:for-each select="exsl:node-set($search-nodes-rtf)/node()">
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<xsl:variable name="pos" select="position()" />
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<replace search="{.}">
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<xsl:copy-of select="exsl:node-set($replace-nodes-rtf)/node()[$pos]" />
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</replace>
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</xsl:for-each>
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</xsl:variable>
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<xsl:variable name="sorted-replacements-rtf">
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<xsl:for-each select="exsl:node-set($replacements-rtf)/replace">
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<xsl:sort select="string-length(@search)" data-type="number" order="descending" />
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<xsl:copy-of select="." />
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</xsl:for-each>
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</xsl:variable>
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<xsl:variable name="result">
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<xsl:choose>
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<xsl:when test="not($search)">
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<xsl:value-of select="$string" />
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</xsl:when>
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<xsl:otherwise>
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<xsl:call-template name="str:_replace">
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<xsl:with-param name="string" select="$string" />
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<xsl:with-param name="replacements" select="exsl:node-set($sorted-replacements-rtf)/replace" />
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</xsl:call-template>
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</xsl:otherwise>
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</xsl:choose>
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</xsl:variable>
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<func:result select="exsl:node-set($result)/node()" />
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</xsl:when>
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<xsl:otherwise>
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<xsl:message terminate="yes">
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ERROR: function implementation of str:replace() relies on exsl:node-set().
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</xsl:message>
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</xsl:otherwise>
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</xsl:choose>
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</func:function>
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<xsl:template name="str:_replace">
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<xsl:param name="string" select="''" />
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<xsl:param name="replacements" select="/.." />
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<xsl:choose>
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<xsl:when test="not($string)" />
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<xsl:when test="not($replacements)">
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<xsl:value-of select="$string" />
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</xsl:when>
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<xsl:otherwise>
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<xsl:variable name="replacement" select="$replacements[1]" />
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<xsl:variable name="search" select="$replacement/@search" />
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<xsl:choose>
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<xsl:when test="not(string($search))">
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<xsl:value-of select="substring($string, 1, 1)" />
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<xsl:copy-of select="$replacement/node()" />
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<xsl:call-template name="str:_replace">
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<xsl:with-param name="string" select="substring($string, 2)" />
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<xsl:with-param name="replacements" select="$replacements" />
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</xsl:call-template>
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</xsl:when>
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<xsl:when test="contains($string, $search)">
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<xsl:call-template name="str:_replace">
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<xsl:with-param name="string" select="substring-before($string, $search)" />
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<xsl:with-param name="replacements" select="$replacements[position() > 1]" />
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</xsl:call-template>
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<xsl:copy-of select="$replacement/node()" />
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<xsl:call-template name="str:_replace">
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<xsl:with-param name="string" select="substring-after($string, $search)" />
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<xsl:with-param name="replacements" select="$replacements" />
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</xsl:call-template>
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</xsl:when>
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<xsl:otherwise>
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<xsl:call-template name="str:_replace">
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<xsl:with-param name="string" select="$string" />
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<xsl:with-param name="replacements" select="$replacements[position() > 1]" />
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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:stylesheet> |