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Re: Urgent!Loop_Condition
- From: Jeff Kenton <jkenton at datapower dot com>
- To: <xsl-list at lists dot mulberrytech dot com>
- Date: Tue, 5 Mar 2002 08:57:03 -0500 (EST)
- Subject: Re: [xsl] Urgent!Loop_Condition
- Reply-to: xsl-list at lists dot mulberrytech dot com
On Mon, 4 Mar 2002, Mike Brown wrote:
..Kim Durand wrote:
..> I want to have an anology of the following algorithm in xsl
..>
..> int i = 1;
..> when(condition)
..> {
..> if(i ==1)
..> {
..> print(welcome on your first visit);
..> }
..> .. do something..
..> ++i;
..>
..> }
..
..You don't. XSLT is a functional language, not a procedural one. "++i"
..is impossible because of XSLT's side-effect-free nature -- variable
.."i" is not a pointer to a mutable section of memory; it is the name of
..an object in the XPath/XSLT data model.
..
This appears to be a standard web page question (is it?) where you want to
know if someone has visited your site previously. If so, you need to
decide how you will know that fact. One standard method is to store a
cookie on the user's machine that you can check for on the next visit.
This really isn't an XSLT problem at all.
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