Re: xpath axes

["G. Ken Holman" <gkholman@CraneSoftwrights.com>]

At 01/01/16 13:44 -0800, you wrote:
>I've been doing a lot of XSLT development and I was wondering why there is
>no siblings

Symmetry perhaps?  All other axes are proximity ordered from the current 
node, which this couldn't be ... I suppose document order would be the only 
sensible order of an "all siblings" axis.

Of course the set is "( preceding-siblings::() | following-siblings::node() 
)" which is all siblings in document order ... but that cannot be used as a 
step in a multiple step location path.

>and siblings-or-self axis.

This is just "../node()" which is also in document order.

>I suspect that the most common use would be to do more sophisticated
>validation (ex there can only be one foo element with a role attribute of
>bar).

count( ../foo[@role='bar'] ) = 1

I hope this helps.

............... Ken


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G. Ken Holman                      mailto:gkholman@CraneSoftwrights.com
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