- From: Henry S. Thompson <ht@inf.ed.ac.uk>
- Date: Fri, 17 Aug 2007 12:49:28 +0100
- To: Norman Walsh <ndw@nwalsh.com>
- Cc: public-xml-processing-model-wg@w3.org
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Norman Walsh writes:
> What is the value of the fribble option seen by the foo:bar step? Is it the
> empty string or is this an error (or is there some other choice)?
>
> My inclination is to say that it's the empty string.
What? Should be just like XML attributes. The pipeline is fine,
attempts to retrieve the value of the option *must* produce either a
distinguished value, e.g. null, or an exception (which *should* be
distinct from the exception you get if you try to access an undeclared
option).
The whole point about optional attributes w/o a default is that you
can't conclude anything from a failure to supply them.
ht
- --
Henry S. Thompson, HCRC Language Technology Group, University of Edinburgh
Half-time member of W3C Team
2 Buccleuch Place, Edinburgh EH8 9LW, SCOTLAND -- (44) 131 650-4440
Fax: (44) 131 650-4587, e-mail: ht@inf.ed.ac.uk
URL: http://www.ltg.ed.ac.uk/~ht/
[mail really from me _always_ has this .sig -- mail without it is forged spam]
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Received on Friday, 17 August 2007 11:49:46 UTC