On Mon, 2011-09-26 at 23:17 +0200, Olivier Lefevre wrote:
What is the best XPath expression that is guaranteed to return nothing?
(best in the sense of simplest, always works and costs as little as
possible to evaluate). I was hoping it'd be the empty string but that
seems forbidden.
*[0] or *[false()]
might do it in both xpath 1 and 2.
Hmm, depending on the evaluation context, /*[false()] is safer - e.g.
since this is the XSL list, you may not have a context item.
Liam
--
Liam Quin - XML Activity Lead, W3C, http://www.w3.org/People/Quin/
Pictures from old books: http://fromoldbooks.org/
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