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RE: Character Entity Reference for Single Quote.

From: Dave J Woolley <david.woolley@bts.co.uk>
Date: Fri, 26 Jan 2001 19:36:41 -0000
Message-ID: <81E4A2BC03CED111845100104B62AFB50102A421@stagecoach.bts.co.uk>
To: "'www-html@w3.org'" <www-html@w3.org>
> From:	Russell O'Connor [SMTP:roconnor@math.berkeley.edu]
> 
> 
> For HTML 2.0, and HTML 3.2, the first 128 characters (0-127) refered to
> ISO 646, and the last 128 characters (128-255) refered to ECMA-94 Right
> Part of Latin Alphabet Nr. 1. ... Well something like that.
	[DJW:]  
	Actually it's 160 to 255, 128 to 159 (including 150)
	are "UNUSED".   Also the ECMA standard looks fairly close
	to ISO 8859/1, if not identical, so the overall effect is
	(close to or) identical to limiting the maximum code to 255
	and using ISO 10646.  (The comments say ISO Latin/1 even if
	the formal reference is ECMA Latin 1.)

	From the 3.2 declaration:

	         BASESET  "ISO Registration Number 100//CHARSET
	                   ECMA-94 Right Part of
	                   Latin Alphabet Nr. 1//ESC 2/13 4/1"
	         DESCSET  128  32   UNUSED
	                  160  96    32 
[DJW:]  

  Only tab, LF, CR and the printable characters (32 to 126)
  are valid from ASCII.  I'm not convinced that the last 32 is
  valid - I suspect it should be 160, as non-break space is
  code point 10/00, not 02/00 in the ECMA spec.  (This could
  be a result of the ISO registration process, I suppose.)

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Received on Friday, 26 January 2001 14:36:43 GMT

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