Subject: Re: [xsl] A general <xsl:key> question. From: David Carlisle <davidc@xxxxxxxxx> Date: Thu, 5 Dec 2002 17:22:52 GMT |
> Do keys have to be used within a context in which the associated nodes > exist? I'm not sure I parsed that correctly, but.. key() like id() will only ever return nodes that are in teh same document as the current node. If you use document() or a xx:node-set() extension then these things are new documents. The usual idiom (I believe there is an example in the xslt spec) is if you are processing document a and want to look up a key in document b then you do <xsl:for-each select="document('b')"> <xsl:copy-of select="key(.... </xsl:for-each> Note the for-each is just looping over a list of 1, just to move the current node to the other document. of course if you are doing that a lot you can define $bdoc to be "document('b') and use $bdoc instead of calling document() each time. David _____________________________________________________________________ This message has been checked for all known viruses by Star Internet delivered through the MessageLabs Virus Scanning Service. For further information visit http://www.star.net.uk/stats.asp or alternatively call Star Internet for details on the Virus Scanning Service. XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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