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URL string manipulation

Hello, I'm struggling with an image mechanism I'm trying to build
which basically manipulates a URL string.

This is the sort URL that is gained from an InfoPath form

https://xxx-xxx.xxx.xxx.com/content/...xx/xxx/xxx.jpg

However I need to manipulate it so it also displays like this;

https://xxx-xxx.xxx.xxx.com/content/..._t/xxx_JPG.jpg

As you can see it adds an '_t' and a '_JPG' into the URL string.

This is where I am up to now, which from what I can see adds a '_' in
front of the URL.

_______________ _______________ _______________ _______________ _______________ ___________

<xsl:output method="html"/>
<xsl:template match="/">
<xsl:variable name="url" select="my:myFi elds/my:URL"/>
<xsl:call-template name="truncate" >
<xsl:with-param name="string" select="$url"/>
</xsl:call-template>
</xsl:template>

<xsl:template name="truncate" >
<xsl:param name="string"/>
<xsl:param name="counter" select="3"/>
<xsl:if test="$string!= '' and $counter!=0">
<xsl:text>_</xsl:text>
<xsl:choose>
<xsl:when test="contains( $string, ' ')">
<xsl:value-of select="substri ng-before($string, '/')"/>
<xsl:call-template name="truncate" >
<xsl:with-param name="string" select="substri ng-
after($string, '/')"/>
<xsl:with-param name="counter" select="$counte r - 1"/>
</xsl:call-template>
</xsl:when>
<xsl:otherwis e>
<xsl:value-of select="$string "/>
</xsl:otherwise>
</xsl:choose>
</xsl:if>
</xsl:template>

_______________ _______________ _______________ _______________ _______________ _______________

Please advise or show me some useful code.

Many thanks in advance

Sep 25 '07 #1
1 2984
If you need to do more complicated string manipulation that may involve
iterating through the string or doing things the basic functions can't
easily handle, check out the relevant sections of the XSLT FAQ. In
particular, see the techniques described in

http://www.dpawson.co.uk/xsl/sect2/StringReplace.html
and
http://www.dpawson.co.uk/xsl/sect2/N7240.html

(Note that this complexity is necessary only because you want to replace
"the last instance of /", and the basic XPath operations don't appear to
include a last-position-of function.)

--
Joe Kesselman / Beware the fury of a patient man. -- John Dryden
Sep 25 '07 #2

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