Subject: Re: [xsl] Re: Re: Selecting a random node from source-tree From: "Martin Lormes" <martin.lormes@xxxxxxx> Date: Thu, 26 Sep 2002 20:37:01 +0200 |
Oh boy I was blind. Thanks for opening my eyes on this: I cannot pass parameters. That would have made things fairly easy because I could have generated a random number outside the transformation. But -- using any number from the source doc as a seed was the clou. There will be one number in my source doc, that increments every time I run the transformation. That'll do! Unfortunately I may have to drop the FXSL stuff, due to performance and maintainability. I want to distribute a single XSLT file, which must be kept as simple as possible. XSLT beginners must be able to apply changes themselves. *sigh* Your random.xsl is fairly complex. However: using that incrementing number plus mod will do the trick in this case. Thanks for the inspiration! Martin Lormes > > > > I was thinking of an XPath expression like this: > > > > > > > > document('funnies.xml')/funnies/quote[random()] > > > > > > > > Can I avoid using extension elements? > > > > > > Yes, use the "randNext" template from FXSL. > > > > > > More information is contained in the article: > > > > > > "Casting the Dice with FXSL: Random Number Generation Functions in > > > XSLT" > > > > > > http://fxsl.sourceforge.net > > > /articles/Random/Casting%20the%20Dice%20with%20FXSL-htm.htm > > > > > > Hope this helped. > > > > > > Thanks, Dimitre. Awsome article! > > > > Unfortunately I always get the same random number (which makes > > perfect > > sense, since I can't dynamically generate a starting number :-( ) > > > > So I must add this as a condition to my original question: the > > stylesheet is > > static. No way of changing that. > > > > > > Thanks for your help. > > Martin Lormes > > > That's easy -- have the minutes or seconds part of the current time (or > whatever else you find appropriate) passed as a parameter to the > stylesheet and use that as the seed (or use a subsequence of the > original sequence, starting with the element having index equal to this > parameter. XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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