Here another nail in the coffin of believes that a collection-based UCS
subrepertoire such as CEN MES-3 is a sensible idea, especially in the
context of symbols:
The Unicode consortium has apparently only recently realized, that
U+300A LEFT DOUBLE ANGLE BRACKET
U+300B RIGHT DOUBLE ANGLE BRACKET
U+301A LEFT WHITE SQUARE BRACKET
U+301B RIGHT WHITE SQUARE BRACKET
are actually widely used mathematical symbols, that ended up only
accidentally in the CJK symbols block, because they were originally
copied from some CJK standard, without realizing that they are not CJK
symbols or punctuation. The WHITE SQUARE BRACKETs are listed e.g. in
Annex F of the TeXbook and appear in at least half a dozen theoretical
computer science dissertations and papers every year here at our
apartment alone. It is hard to justify, why they are not in CEN MES-3,
which aims at covering all math symbols. The Unicode Consortium has
recently adjusted the EastAsianWidth property of these four characters
to reflect these circumstances.
Idea: Would it be possible in UCS:2000, to add the above four characters
to collection 39 MATHEMATICAL OPERATORS? Are changes to UCS collections
still possible at this stage?
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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