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[xsl] Splitting an +attribute+ string

Subject: [xsl] Splitting an +attribute+ string
From: ben senior <ben@xxxxxxxxxxxxx>
Date: Thu, 13 Jan 2005 11:31:08 +0100

I wonder if anybody could quickly profer some advice on this.
I may well be wrong, but does xsl treat attribute strings different to normal text nodes when it comes to the "contains()" function. I may well also be gibbering. I've got my mind into a muddle on this one.

Problem : To take an attribute in the form of a comma delineated string (e.g. <gui onShow="apple,pear,banana" onHide="black,white,grey"/>) and to covert the attributes into javascript array syntax (i.e. ['apple','pear','banana'] etc.).

Strategy : "Just" replace the commas with ',' and top and tail the output string with [' and ']

Code :
<!--To convert onShow-->
<xsl:call-template name="commaDelineate"><xsl:with-param name="str" select="@onShow"/></xsl:call-template>

<xsl:template name="commaDelineate">
<xsl:param name="str"/>
   <xsl:when test="contains($str,',')">
     <xsl:value-of select="substring-before($str,',')"/>','
     <xsl:call-template name="commaDelineate">
       <xsl:with-param name="str" select="substring-after($str,',')"/>

Frustration : The errors seem to be generated around the "when" statement. Unfortunately I can't provide any error output because this is being done inside a PHP script.

Many thanks for reading this... if anyone has any advice about +why+ this isn't working, and where I ought to go, I'd be grateful. Thanks.


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