WGL4 is not a superset of CP1252

From: Markus Kuhn (Markus.Kuhn@cl.cam.ac.uk)
Date: Fri Sep 10 1999 - 15:55:42 EDT


Apparently, on 1998-12-18 Adobe and Microsoft have changed their WGL4
character repertoire tables on

  http://partners.adobe.com/asn/developer/opentype/wgl4.htm
  http://www.microsoft.com/typography/OTSPEC/WGL4.HTM

The following two characters have been removed and are not part
of WGL4 any more:

  0x02D6 # MODIFIER LETTER PLUS SIGN
  0x02DC # SMALL TILDE

However, the file

  ftp://ftp.unicode.org/Public/MAPPINGS/VENDORS/MICSFT/WINDOWS/CP1252.TXT

still contains the line

  0x98 0x02DC #SMALL TILDE

In other words, WGL4 is *not* a superset of CP1252 any more, which is
clearly a serious inconsistency in one of these tables.

This is an important and urgent issue, because WGL4 plays a role in the
standardization of the CEN/TC304 MES-2 European Unicode subset, which is
currently undergoing its final review.

As a reviewer of the CEN/TC304 MES-2 project, I'd like to ask both
Microsoft and Adobe to verify and confirm to me, whether

  U+02DC SMALL TILDE

is now part or not part of both WGL4 and CP1252.

It would also be helpful to hear, why U+02D6 MODIFIER LETTER PLUS SIGN
was removed.

PLEASE REPLY BEFORE FRIDAY, 17 SEPTEMBER 1999!

Thanks and best regards,

Markus

-- 
Markus G. Kuhn, Computer Laboratory, University of Cambridge, UK
Email: mkuhn at acm.org,  WWW: <http://www.cl.cam.ac.uk/~mgk25/>



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