RE: [xsl] Why template match differs?

Subject: RE: [xsl] Why template match differs?
From: "SHEIKH Sajjad" <Sajjad.SHEIKH@xxxxxxxxxxx>
Date: Thu, 11 Dec 2003 18:39:35 +0100
Thanks David.

Following two templates generates the same results:

Cheers,

<xsl:template match="link//llnode" mode="yyy">
<xsl:for-each select="*">
</xsl:template>

<xsl:template match="link" mode="yyy">
<xsl:for-each select="*//llnode">
</xsl:template>

-----Original Message-----
From: David Carlisle [mailto:davidc@xxxxxxxxx] 
Sent: 11 December 2003 18:17
To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
Subject: Re: [xsl] Why template match differs?



> What is the different between following two statements?


<xsl:template match="link//llnode" mode="yyy">

that matches anly llnode that is a descendent of a link node. so this
<xsl:for-each select="*"> selects all children of those llink nodes.

Your other template is almost completely different.

<xsl:template match="link" mode="yyy">

that matches any link node

<xsl:for-each select="//llnode">

this selects all llnode from anywhere in the document irrespective of
which link node was matched.  the " ..some action.. " is now executed on
the link node not on its children as in the first template.

You could yuse .//llnode in the second template to find all llnodes
below the current link, but in either case if you know a more specific
path than // it would be good to use it. // is very expensive it causes
a search the full depth of the tree looking for the specified nodes.

David


-- 
http://www.dcarlisle.demon.co.uk/matthew

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