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Re: ISSUE-101: (us-ascii-ref): Chairs Solicit Proposals

From: Øistein E. Andersen <liszt@coq.no>
Date: Sun, 30 May 2010 22:40:43 +0100
Message-Id: <E167ABC2-1F4B-466C-B70A-10D4FC98AA66@coq.no>
To: public-html@w3.org
Assuming that Bug 8845 gives a correct summary of this issue, the  
problem is that (1) the current reference for US-ASCII, RFC 1345, is  
considered not to be sufficiently authoritative, and (2) the proposed  
alternative, ANSI X3.4 (1986 edn), is considered, by others, to be  
virtually inaccessible.

ISO 646 might fulfil the perceived need for authority, and is easily  
accessible under the name ECMA-6, but this standard probably defines  
much more than what is really necessary for the purposes of HTML5.

What is needed seems to be a reference supporting the following mapping:

	n  ->  U+n(hex), if  0 ≤ n ≤ 127
	n  ->  U+FFFD,  otherwise (i.e., if 128 ≤ n ≤ 255)

It might be an idea to include a definition along those lines (if it  
is not already there — I have not read the draft lately), perhaps  
using the corresponding Unicode chart [1] as a reference.

[1] <http://www.unicode.org/charts/PDF/U0000.pdf>

Øistein E. Andersen
Received on Sunday, 30 May 2010 21:43:01 UTC

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