String.Replace() in XSLT

from:http://geekswithblogs.net/Erik/archive/2008/04/01/120915.aspx

Here's a sample template that lets you have the String.Replace() functionality in XSLT 1.0. The template "string-replace-all" takes 3 parameters and recursively processes the input text string.

text : main string

replace : the string fragment to be replaced

by : the replacement string

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

Here's how it is called:

<xsl:variable name="myVar">
<xsl:call-template name="string-replace-all">
<xsl:with-param name="text" select="'This is a sample text : {ReplaceMe} and {ReplaceMe}'" />
<xsl:with-param name="replace" select="'{ReplaceMe}'" />
<xsl:with-param name="by" select="'String.Replace() in XSLT'" />
</xsl:call-template>
</xsl:variable>

(Edit : Thanks to Marky and granadaCoder for typing out the xslt code in the comments.)

The resulting value of $myVar after {ReplaceMe} is replaced is "This is a sample text : String.Replace() in XSLT and String.Replace() in XSLT"

For those who are not familiar with XSLT syntax and here's the C# equivalent. An excellent material for the thedailywtf!

(Note: I'm not so sure, but I think in XSL 2.0 there is already a built-in replace function on strings)