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From Stefan Bodewig <>
Subject Re: Check that path elements exist?
Date Thu, 15 Apr 2010 04:01:56 GMT
On 2010-04-15, Jeffrey E Care <> wrote:

> Before I write my own, if there a way to check that the elements of a path
> actually exist (or optionally that at least one exists)?

I assume you mean the <pathelement>'s of a <path>.  <resourcecount>,
<restrict> and <exists> are the ingredients that should help.

If you wrap your <path> in a <restrict> using <exists> as selector you
get only the existing elements.  <resourcecount> will count them and if
it is greater than 0 you obviously have at least one - likewise if you
count the path itself and compare the numbers you'll know whether all
elements exist.


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