Conditional String Substitution

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Subject: Conditional String Substitution
From: Nathan Potter <ndp@xxxxxxxxxxxxxxxxxxxx>
Date: Fri, 25 Apr 2008 10:22:55 -0700

Greetings,

I need to do some string manipulation of an attribute value using XSLT.

I need to look at the value of the attribute "href" and determine if it ends in the suffix ".xml"

If so then I need to replace the ".xml" suffix with a ".html" suffix.

I got it to work using a pretty convoluted set of XPath expressions in conjunction with xsl:if but I think that I am missing something...

Is there a more straight forward way of accomplishing this?

Example(s):

<xsl:template match="thredds:catalogRef">

<xsl:variable name="href" select="./@xlink:href" /> <xsl:variable name="linkSuffix" select="substring ($href,string-length($href) - 3)" /> <xsl:variable name="linkBody" select="substring($href, 1,string-length($href) - 4)" />

<xsl:if test="$linkSuffix='.xml'"> <xsl:value-of select="$indent"/><a href="{concat ($linkBody,'.html')}" ><xsl:value-of select="./@xlink:title"/> /</a> </xsl:if>

<xsl:if test="not($linkSuffix='.xml')"> <xsl:value-of select="$indent"/><a href="{$href}" ><xsl:value-of select="./@xlink:title"/> /</a> </xsl:if>

</xsl:template>

I used a bunch of variables in the example simply to make it more readable, the example could be condensed to:

<xsl:template match="thredds:catalogRef">

<xsl:if test="substring(./@xlink:href,string-length(./ @xlink:href) - 3)='.xml'"> <a href="{concat(substring(./@xlink:href,1,string-length (./@xlink:href) - 4),'.html')}" ><xsl:value-of select="./ @xlink:title"/> /</a> </xsl:if>

<xsl:if test="not(substring(./@xlink:href,string-length(./ @xlink:href) - 3))"> <a href="{./@xlink:href}" ><xsl:value-of select="./ @xlink:title"/> /</a> </xsl:if> <br/>

</xsl:template>

Thanks!

Nathan


============================================================
Nathan Potter                 Oregon State University, COAS
ndp at coas.oregonstate.edu   104 Ocean. Admin. Bldg.
541 737 2293 voice            Corvallis, OR   97331-5503
541 737 2064 fax

Current Thread
Conditional String Substitution Nathan Potter - 25 Apr 2008 17:23:22 -0000 <= Michael Kay - 25 Apr 2008 17:27:12 -0000 Nathan Potter - 25 Apr 2008 17:30:30 -0000 Dimitre Novatchev - 25 Apr 2008 18:46:54 -0000 Nathan Potter - 26 Apr 2008 04:15:43 -0000

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