RE: Vendor-specific data-types

>From section 14: "XSLT allow two kinds of extensions, extension elements and
extension functions".  Since adding data-types extends XSLT, this sentence
implies that vendors may not do this.

I admit that my argument is inconclusive--the spec just doesn't seem to
resolve this question clearly either way.  This would be a good candidate
for WG debate and insertion into the errata.

~Andy

-----Original Message-----
From: Michael Kay [mailto:mhkay@xxxxxxxxxxxx]
Sent: Thursday, February 22, 2001 4:23 PM
To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
Subject: RE:  Vendor-specific data-types


XPath says (section 1) that the value of an expression may be "of additional
types not specified here".

Beyond that, I can only fall back on the defense that everything is allowed
unless the spec prohibits it; and it doesn't prohibit vendor-defined data
types.

Mike Kay
>
> Michael Kay's XSLT Programmer's Reference mentions on page
> 123 that vendors
> are allowed to add custom data types to XSLT/XPath.  Can
> anyone point me to
> the place in the XSLT/XPath specs where this is mentioned?
>
> Thanks,
> Andy Kimball


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