Subject: RE: [xsl] Easy Key-grammar Question From: "Michael Kay" <mike@xxxxxxxxxxxx> Date: Tue, 26 Sep 2006 19:31:53 +0100 |
If you need to find the items with @group != 0 frequently, use a global variable: <xsl:variable name="nonzeroitems" select="//item[@group != 0]"/> If you don't need them frequently, then you don't need a key. If "0" is actually a variable, then a key isn't going to help. Michael Kay http://www.saxonica.com/ > -----Original Message----- > From: Bob Portnell [mailto:simply.bobp@xxxxxxxxx] > Sent: 26 September 2006 19:08 > To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx > Subject: [xsl] Easy Key-grammar Question > > (And yet I don't see it clearly in the FAQ) > > So, I've been handed > > <xsl:for-each select="//item[@group != 0]"> > > The structure cries out for a key, and conveniently I already > have established <xsl:key name="ItemByGrp" match="item" > use="@group" /> > > Now, if I wanted the <item>s with @group='0', I'd use the > function key('ItemByGrp', 0). No fuss. > > How do I opposite? *Can* I do the opposite, or am I better > off leaving it alone? Should I create a more refined key > definition thus? > > <xsl:key name="GroupedItems" match="item[@group !=0]" use="@group" /> > > Curiosity abounds! > > Bob Portnell > simply.bobp@xxxxxxxxx
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