From: Martin Honnen <Martin.Honnen@xxxxxx>
Subject: Re:  [XSL] How to test "numericity" ?
Message-ID: <47E6955C.8090603@xxxxxx>

Alain wrote:


> Let's assume variable x contains the string to test.
> We cannot do simply xs:integer($s), or any casting like that, because it > would produce an fatal runtime error when not numeric.

xs:integer sounds as if you use XSLT 2.0 so there you can check
  $s castable as xs:integer

--

Martin Honnen

You're right, I just skipped paragraph 3.10.3 of XPath 2.0.
Now I can see it, and it's so much clear like that.