Subject: RE: [xsl] Problems selecting the right nodes. From: "Michael Kay" <mhk@xxxxxxxxx> Date: Thu, 25 Sep 2003 23:49:33 +0100 |
This needs just a minor variation on Muenchian grouping. Define a key on service/@id, and run through all the service elements, outputting the element if (a) it is the first one with that key value (standard Muenchian test) and (b) count(key(...)) != count(/*/branch). Michael Kay > -----Original Message----- > From: owner-xsl-list@xxxxxxxxxxxxxxxxxxxxxx > [mailto:owner-xsl-list@xxxxxxxxxxxxxxxxxxxxxx] On Behalf Of > Adam van den Hoven > Sent: 25 September 2003 17:26 > To: XSL Mailing List > Subject: [xsl] Problems selecting the right nodes. > > > I have a nodeset or arbitrary length that contains a set of > tags which > look something like: > > <branch id="br1"> > <service id="service1" /> > <service id="service2" /> > <service id="service3" /> > </branch> > <branch id="br2"> > <service id="service1" /> > <service id="service4" /> > </branch> > > Now what I want is a nodeset that contains (uniquely) all the > services > that do not occur in all the branches. In this case I want > service 2, 3 > and 4 but not 1 > > My original solution was iffy. I ended up creating a tokenized string > ("Service2|Service3|Service4" in this case) which I then ran > through a > recursive named template which did a lot of substring-before and > substring-after. Since what I cared about are the ids, that was fine. > However, the input file is occasionally very large so this can take a > very long time. I want to find a better solution. > > If possible, I think I'd like to avoid using extension > functions, unless > there is an obvious performance boost. > > Any thoughts? > Adam > > > XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list > XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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