1 <?xml version="1.0"?>
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4 xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
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5 xmlns:str="http://exslt.org/strings"
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6 xmlns:func="http://exslt.org/functions"
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7 xmlns:exsl="http://exslt.org/common"
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8 extension-element-prefixes="str exsl func">
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10 <!-- ==================================================================== -->
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11 <!-- node-set str:replace(string,object,object) -->
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13 <!-- This implements the EXSLT str:replace function -->
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15 <!-- Copyright Jeni Tenison -->
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16 <!-- ==================================================================== -->
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18 <func:function name="str:replace">
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19 <xsl:param name="string" select="''" />
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20 <xsl:param name="search" select="/.." />
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21 <xsl:param name="replace" select="/.." />
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23 <xsl:when test="not($string)">
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24 <func:result select="/.." />
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26 <xsl:when test="function-available('exsl:node-set')">
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27 <!-- this converts the search and replace arguments to node sets
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28 if they are one of the other XPath types -->
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29 <xsl:variable name="search-nodes-rtf">
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30 <xsl:copy-of select="$search" />
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32 <xsl:variable name="replace-nodes-rtf">
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33 <xsl:copy-of select="$replace" />
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35 <xsl:variable name="replacements-rtf">
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36 <xsl:for-each select="exsl:node-set($search-nodes-rtf)/node()">
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37 <xsl:variable name="pos" select="position()" />
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38 <replace search="{.}">
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39 <xsl:copy-of select="exsl:node-set($replace-nodes-rtf)/node()[$pos]" />
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43 <xsl:variable name="sorted-replacements-rtf">
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44 <xsl:for-each select="exsl:node-set($replacements-rtf)/replace">
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45 <xsl:sort select="string-length(@search)" data-type="number" order="descending" />
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46 <xsl:copy-of select="." />
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49 <xsl:variable name="result">
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51 <xsl:when test="not($search)">
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52 <xsl:value-of select="$string" />
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55 <xsl:call-template name="str:_replace">
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56 <xsl:with-param name="string" select="$string" />
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57 <xsl:with-param name="replacements" select="exsl:node-set($sorted-replacements-rtf)/replace" />
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58 </xsl:call-template>
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62 <func:result select="exsl:node-set($result)/node()" />
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65 <xsl:message terminate="yes">
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66 ERROR: function implementation of str:replace() relies on exsl:node-set().
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72 <xsl:template name="str:_replace">
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73 <xsl:param name="string" select="''" />
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74 <xsl:param name="replacements" select="/.." />
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76 <xsl:when test="not($string)" />
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77 <xsl:when test="not($replacements)">
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78 <xsl:value-of select="$string" />
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81 <xsl:variable name="replacement" select="$replacements[1]" />
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82 <xsl:variable name="search" select="$replacement/@search" />
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84 <xsl:when test="not(string($search))">
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85 <xsl:value-of select="substring($string, 1, 1)" />
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86 <xsl:copy-of select="$replacement/node()" />
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87 <xsl:call-template name="str:_replace">
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88 <xsl:with-param name="string" select="substring($string, 2)" />
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89 <xsl:with-param name="replacements" select="$replacements" />
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90 </xsl:call-template>
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92 <xsl:when test="contains($string, $search)">
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93 <xsl:call-template name="str:_replace">
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94 <xsl:with-param name="string" select="substring-before($string, $search)" />
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95 <xsl:with-param name="replacements" select="$replacements[position() > 1]" />
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96 </xsl:call-template>
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97 <xsl:copy-of select="$replacement/node()" />
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98 <xsl:call-template name="str:_replace">
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99 <xsl:with-param name="string" select="substring-after($string, $search)" />
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100 <xsl:with-param name="replacements" select="$replacements" />
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101 </xsl:call-template>
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104 <xsl:call-template name="str:_replace">
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105 <xsl:with-param name="string" select="$string" />
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106 <xsl:with-param name="replacements" select="$replacements[position() > 1]" />
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107 </xsl:call-template>
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