parsing query strings in XSL?

[darrel]

I'm using XSLT to transoform XML into navigation.

My XML has a field for the URL, and a field for a variable that sets the
'active node' in the menu when it displays. The catch is that I now repeat
data on some nodes:

<url>link.aspx?activeLink=8.2.1</url>
<linkID>8.2.1</url>

So, if we change one, we need to remember to change the other.

I'd like to streamline this and append the linkID to the URL when I write it
out/transform it in XSL:

<a href="{linkURL}?activeLink={linkID}">

This will work just fine provided I DON'T have a query string in the
linkURL. For instance, if I have this:

<url>link.aspx?template=3</url>
<linkID>8.2.1</url>

I'd end up with this after the transform:

link.aspx?template=3?activeLink=8.2.1

which, of course, is a problem.

Is it possible, within the XSL file to parse the value of one field and to
an if/then after that? For instance, can I check the value of URL and if it
contains an '?' then write '&' else write '?'?

-Darrel

[Oleg Tkachenko [MVP]]

darrel wrote:

Is it possible, within the XSL file to parse the value of one field and to
an if/then after that? For instance, can I check the value of URL and if it
contains an '?' then write '&' else write '?'?

Sure. Use contains() function to test if URL contains '?' and xsl:choose
instruction to output conditionally.
--
Oleg Tkachenko [XML MVP, XmlInsider]
http://blog.tkachenko.com

[darrel]

> Sure. Use contains() function to test if URL contains '?' and xsl:choose

instruction to output conditionally.

Cool! I will look into that! Thanks!

-Darrel