I want to take a string and replace every time two commas next to each other with this: ',0,'. Then I need to tokenize this string. This may soud very easy but I am having some difficulty. This is my code:

<xsl:variable name="path" select="tokenize(replace( @path, ',,', ' 0 '), ',')" />

Here is the error message that I get:
XPathParserException: The function '{0}' was not found. expression = 'tokenize(replace( @path, ',,', ' 0 '), ',')' Remaining tokens are ('tokenize' '(' 'replace' '(' '@' 'path' ',' '',,'' ',' '' 0 '' ')' ',' '',''')') (w2dxf.xsl, line 994, column 84)

I have tried with and without the tokenize function and I get the message that the function was not found.
I am using Xalan C 2.6, which only supports XSLT 1.0 XPath 1.0. After looking on the W3 website, I think that using something that is not up-to-date may be the problem. Does anyone have any solutions of getting around this problem?
Thanks to anyone that can give any help! have a great day!

Well... i think that i have solved my own problem. I have created a template that will work just as well as the one from EXSLT. If anyone is interested is using it, here is the code:

            <xsl:call-template name="replace">
                <xsl:with-param name="string" select="@path"/>
                <xsl:with-param name="search" select="$find"/>
                <xsl:with-param name="replace" select="$replace"/>
             </xsl:call-template

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

The functions replace() and tokenize() are XPath 2.0 functions, and if you get a message saying they haven't been found, this is because you are using an XPath 1.0 implementation.

Xalan implements XSLT 1.0 and XPath 1.0. If you want to use the 2.0 version, use Saxon.

Michael Kay
http://www.saxonica.com/
Author, XSLT Programmer's Reference and XPath 2.0 Programmer's Reference