Subject: RE: [XSLT 2.0] Checking that an element's value has the desired datatype?
From: "Michael Kay" <mike@xxxxxxxxxxxx>
Date: Mon, 16 Oct 2006 20:38:59 +0100
|
> >> I can do datatype checking, without using XML Schemas.
>
> > No, you do string matching on the lexical representation of the
> > values. The difference can be important.
>
> What is the difference?
>
Well, some telephone numbers consist entirely of digits, but a telephone
number is not an integer - for example, leading zeros are significant. If
you want to do proper type checking, then an operation that works on
integers shouldn't accept a telephone number, just because it happens to be
all-numeric.
Michael Kay
http://www.saxonica.com/
|
Cart
