On Mon, 9 Jul 2012 10:39:52 +0200 Leif Halvard Silli <[email protected]> wrote: > Jukka K. Korpela, Mon, 09 Jul 2012 10:04:08 +0300:
> > Adding new characters would be possible in principle, but hardly > > realistic or useful in this case. They would not change the bulk of > > existing data that uses existing characters, and they would just > > add to the confusion rather than remove it. > Could not 'DIVISION SLASH' have been dismissed by the same argument? U+2212 MINUS SIGN and U+00F7 DIVISION SIGN are both of general category Sm (mathematical symbol), whereas U+002F SOLIDUS is punctuation (Po) and U+2215 DIVISION SLASH is Sm (mathematical symbol). There are subtle behavioural differences between punctuation and symbols when it comes to line-breaking. By using U+2212 in negative numbers instead of U+002D HYPHEN MINUS, which is punctuation, I not only get a better glyph, I also don't get problems with line breaks occurring between the sign and the leading digit. I find the difference well worth the effort of typing, in Word, 2 2 1 2 alt/X, rather than just pressing the hyphen key. U+1xxxx MINUS SIGN WITH DOT ABOVE AND BELOW would not offer any such advantages. Richard.
