RE: [xsl] [XSLT 2.0] Checking that an element's value has th

Subject: RE: [xsl] [XSLT 2.0] Checking that an element's value has the desired datatype?
From: "Michael Kay" <mike@xxxxxxxxxxxx>
Date: Tue, 17 Oct 2006 12:52:23 +0100

> As best I can tell, the functionality of Schematron + xPath 
> 2.0 is a superset of XML Schemas (and RelaxNG).

Yes, as far as testing validity is concerned, that's almost certainly true.
Any integrity constraint can be expressed as a query that returns true or
false. Remember however:

(a) a schema is more than a yes/no validity checking function

(b) some constraints are very convenient to express in the form of a
grammar, and these constraints are far less easy to express in terms of
XPath queries

(c) XML schema is carefully designed so that its constraints can be
evaluated in a single sequential pass through the document, without building
a tree.

Michael Kay
http://www.saxonica.com/

Current Thread
Re: [xsl] need help on trasformation, (continued) Abel Braaksma - Wed, 18 Oct 2006 09:33:59 +0200 Davide Antoni - Wed, 18 Oct 2006 09:43:02 +0200 Per Osnes - Wed, 18 Oct 2006 11:39:57 +0200 bryan rasmussen - Tue, 17 Oct 2006 13:34:57 +0200 Michael Kay - Tue, 17 Oct 2006 12:52:23 +0100 <= Michael Kay - Tue, 17 Oct 2006 09:19:04 +0100 Costello, Roger L. - Tue, 17 Oct 2006 06:43:39 -0400 Abel Braaksma - Tue, 17 Oct 2006 13:19:08 +0200 Dimitre Novatchev - Mon, 16 Oct 2006 10:09:44 -0700

Current Thread

Re: [xsl] need help on trasformation, (continued)

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