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RE: Vote for libexslt support for Safari

Subject: RE: Vote for libexslt support for Safari
From: "Michael Kay" <mike@xxxxxxxxxxxx>
Date: Thu, 21 Jun 2007 11:15:34 +0100
RE:  Vote for libexslt support for Safari
> "- is EXSLT relatively stable as a spec and implementation  
> (so we won't be creating future possible compat issues)?"

If it has a problem, it's that it's been too stable... There's quite a lot
in there that is a bit tentative and has been in that state for some years
and could do with firming up. However, it does distinguish stable
specifications from the more tentative proposals. The specs are a bit
informal, which means you may get interoperability issues across
implementations in corner cases, but you're unlikely to hit serious
backwards compatibility issues because it's an informal spec so as a vendor
you always have the choice whether to implement any changes or not.

The other issue of course is that many of the EXSLT functions become
obsolete when you move to XSLT 2.0, so if you put them into a 1.0
implementation now you may be committing yourself to carry them forward into
a future 2.0 implementation where they are (in many cases) no longer needed
except for backwards compatibility.

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

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