- From: Řistein E. Andersen <html5@xn--istein-9xa.com>
- Date: Sun, 01 Jul 2007 23:40:34 +0200
L. David Baron wrote: > What's wrong with these mappings, and why shouldn't they > also be the mappings in HTML5? The problem is that they are canonically equivalent to CJK characters. http://www.unicode.org/reports/tr15/ describes Unicode normalisation in general and mentions singleton decompositions in particular. http://unicode.org/reports/tr25/#_Toc25 highlights the problem with the HTML 4.01 mappings: > The left and right angle brackets at U+2329 and U+232A > have long been canonically equivalent with the CJK > punctuation characters ?〈? and ?〉? (U+3008 and U+3009). > Canonical equivalence implies that the use of the latter > code points is preferred and can be substituted at any time. > As a consequence, not only 3008 and 3009 but also the > characters 2329 and 232A are ?wide? characters. [...] > Unicode 3.2 added two new mathematical angle bracket > characters (U+27E8 and U+27E9) that are unequivocally > intended for mathematical use. -- ?istein E. Andersen
Received on Sunday, 1 July 2007 14:40:34 UTC