This is the mail archive of the
xsl-list@mulberrytech.com
mailing list .
Re: get immediat preceeding node, if it is a comment
- From: David Carlisle <davidc at nag dot co dot uk>
- To: xsl-list at lists dot mulberrytech dot com
- Date: Fri, 4 Oct 2002 14:25:19 +0100
- Subject: Re: [xsl] get immediat preceeding node, if it is a comment
- References: <63C4AD0365821F4291ACF76C0672FA3506EF68@piper6.piper-group.int>
- Reply-to: xsl-list at lists dot mulberrytech dot com
> It seems that any predicates after the positional predicate refer to
> that node, not to the node that the predicates before the positional
> predicate refer to...
yes but that's a special case. You can have any number of [] predicates
in a step and after each one the remaining nodes in the current node
list are those nodes for which the predicate was true. while evaluating
the next [] position() and last() and count() all refer to the current
node list (ie the list of nodes that have survivied any previous []
predicates in the step)
> preceding-sibling::node()[normalize-space()][1][self::comment()]
>
> this gets 'test1' and 'test3' as we would expect
anything that involves [1] (anywhere) will select a node set of at most
one node. Your description in english suggests you used the expression
*/preceding-sibling::node()[normalize-space()][1][self::comment()]
while <root> is your current node.
ie find all children that have the stated condition.
> So is it the case that all predicates to the right of the positional
> predicate refer to that node? (they change the context node)
Yes but there is nothing special about the positional predicate it is
just shorthand for the boolean test [position()=1].
All later predicates refer to nodes for which earlier predicates are
true.
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