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Re: draft proposal for catalog resolution

From: Paul Prescod <papresco@calum.csclub.uwaterloo.ca>
Date: Mon, 31 Mar 1997 06:37:43 -0500
Message-ID: <333FA207.38DE@csclub.uwaterloo.ca>
To: w3c-sgml-wg@w3.org
Martin Bryan wrote:
> Firstly, I cannot understand the Char* - part of theses productions. Why is
> the initial Char optional, and what role does the hyphen take? Is it the
> same as "-" or does it imply "NOT"?

It is "NOT". That answers several of your questions, I think.

> If a catKeyword may be ignored, what is the difference between when it is
> implemented and when it is ignored? We need to explain this to our Dirty
> Perl Hacker if we are going to leave such cryptic comments in the text.

catKeyword is a hook for extensibility, just as processing instructions
are. We cannot list all of the keywords that TR9401 allows because as I
recall it has a larger fixed list, but also leaves the list open-ended.

 Paul Prescod
Received on Monday, 31 March 1997 07:05:17 EST

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