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Re: Extension steps and declarations

From: Henry S. Thompson <ht@inf.ed.ac.uk>
Date: Fri, 21 Nov 2008 13:30:44 +0000
To: Norman Walsh <ndw@nwalsh.com>
Cc: public-xml-processing-model-comments@w3.org
Message-ID: <f5br6556waj.fsf@hildegard.inf.ed.ac.uk>

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Norman Walsh writes:

> Except we're talking about an *extension* step, right? So there's no
> interoperability virtue in making the declaration visible. The
> declaration won't help another implementation run it.

Not quite true -- it might enable a processor to reject the step on
calling-sequence grounds, by comparing its use with its declaration.

> So I propose that *both* pipelines are invalid. If I want to run a
> Calabash extension, I should have to explicitly declare or import the
> declaration in the pipeline:

Agreed.

ht
- -- 
       Henry S. Thompson, School of Informatics, University of Edinburgh
                         Half-time member of W3C Team
      10 Crichton Street, Edinburgh EH8 9AB, SCOTLAND -- (44) 131 650-4440
                Fax: (44) 131 651-1426, 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, 21 November 2008 13:31:22 UTC

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