Subject: Re: [xsl] alternative to repeatedly walking the ancestor axis in 1.0 From: "Dimitre Novatchev" <dnovatchev@xxxxxxxxx> Date: Mon, 4 Aug 2008 10:08:38 -0700 |
> Yes (although you're just walking the ancestor axis once per node in a > different place) It is possible to create the following key (and any other keys!): <xsl:key name="kRtlMode" match="*[ancestor-or-self::*[@dir='rtl']]" use="generate-id()"/> just during the initial reading of the xml document -- without any walking up the ancestor axis. That is, when the currently-read node satisfies: @dir='rtl' then the "key-recording-mode" for the key named 'kRtlMode' is turned on and key-values are generated for each element while this "key-recording-mode" is on. To summarise, it is perfectly possible to create the above key without walking up the ancestor axis for the nodes. -- Cheers, Dimitre Novatchev --------------------------------------- Truly great madness cannot be achieved without significant intelligence. --------------------------------------- To invent, you need a good imagination and a pile of junk ------------------------------------- Never fight an inanimate object ------------------------------------- You've achieved success in your field when you don't know whether what you're doing is work or play On Mon, Aug 4, 2008 at 7:53 AM, Andrew Welch <andrew.j.welch@xxxxxxxxx> wrote: > > > Then simply use keys as shown in my first reply to this thread. > > Yes (although you're just walking the ancestor axis once per node in a > different place) > > Out of interest, I wonder how in-scope-prefixes() works - does any > tree walking need to take place? If not, you could perhaps do: > > <foo xmlns:lang_cornish="..."> > > and then test for that: > > test="in-scope-prefixes(.) = 'lang_cornish'" > > > -- > Andrew Welch > http://andrewjwelch.com > Kernow: http://kernowforsaxon.sf.net/
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