File: string-replace.xsl

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<?xml version="1.0" encoding="UTF-8"?>
<!-- 
  Purpose:
    Replace a string with another. As seen in Sal Mangano's XSLT Cookbook
    (O'Reilly): <http://examples.oreilly.com/9780596003722/>.

  Author:    Stefan Knorr <sknorr@suse.de>
  Copyright: 2013, Stefan Knorr

-->

<xsl:stylesheet version="1.0"
    xmlns:xsl="http://www.w3.org/1999/XSL/Transform">

<xsl:template name="string-replace">
  <xsl:param name="input"/>
  <xsl:param name="search-string"/>
  <xsl:param name="replace-string"/>
  <xsl:choose>
    <xsl:when test="contains($input,$search-string)">
      <xsl:value-of select="substring-before($input,$search-string)"/>
      <xsl:value-of select="$replace-string"/>
      <xsl:call-template name="string-replace">
        <xsl:with-param name="input"
        select="substring-after($input,$search-string)"/>
        <xsl:with-param name="search-string" 
        select="$search-string"/>
        <xsl:with-param name="replace-string" 
          select="$replace-string"/>
      </xsl:call-template>
    </xsl:when>
    <xsl:otherwise>
      <xsl:value-of select="$input"/>
    </xsl:otherwise>
  </xsl:choose>
</xsl:template>

</xsl:stylesheet>