[XSL-LIST Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: Using a pre-processor for dynamic inputs
On Sat, 11 Sep 2004 10:21:38 +0100, Michael Kay <mhk@xxxxxxxxx> wrote: > There are three approaches to this problem [readining dynamic inputs], all of which are quite > respectable and widely used. > > (a) if the inputs are fairly predictable in structure, you can write your > stylesheet to interpret the inputs. For example, you might supply a > parameter to the stylesheet of the form: > > <conditions> > <condition> > <attribute>name</attribute> > <value>robin</value> > </condition> > <condition> > <attribute>size</attribute> > <value>small</value> > </condition> > </conditions> > > and then write logic in your stylesheet to select all the birds that satisfy > all the conditions. I'd like to take this approach but am completely stumped at how to process the input. How is it possible to use subelement values as dynamic inputs in match/select statements? I keep reading it is impossible. In my case, the input could looke like this: <genera> <genus>Dromaius</genus> <genus>Coturnix</genus> <genus>Philemon</genus> </genera> > (b) you can generate or modify the stylesheet each time it is used, to > incorporate the specific conditions Yes, pre-processing works great. > > (c) you can use an extension xx:evaluate(), available in many XSLT > processors, to intpret an XPath expression that's constructed dynamically. In my case, I'm using an environment that embeds Xalan C++ 1.6 and don't have access to evaluate. Many thanks in advance for suggestions. I'm getting the felling I'm suffering from thinking in the wrong language. Still, it's hard to believe that reading dynamic inputs would be an incredibly common task in XSLT. It also seems that supplying XML structures as inputs should be quite natural. Perhaps I'm missing some fundamental concept here. Perhaps the problem is that I'm not looking at the stylesheet aspect of XSLT. I'm only interested in the transformational aspect and the native querying abilities.
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