> Date: Mon, 17 Oct 2011 08:42:02 +0200 > From: Simon Montagu <[email protected]> > List-software: Ecartis version 1.0.0 > > On 10/15/2011 05:19 PM, Andreas Prilop wrote: > > I return to > > http://www.unicode.org/mail-arch/unicode-ml/y2011-m10/att-0059/1999-12-31.html > > > > Microsoft programs (Internet Explorer, MS Word), display this as > > 31/12/1999 > > > > Other programs (Firefox, Opera, OpenOffice) display this as > > 1999/12/31 > > Given that the bidi category of U+002F is CS, 1999/12/31 seems to be the > correct rendering following rule W4 of the Bidi Algorithm: "A single > common separator between two numbers of the same type changes to that type". > > Note that this changed in version 4.0.1 of Unicode -- before that the > category of U+002F was ES, which would make the correct rendering > 31/12/1999 as in Microsoft programs.
Actually, it's the other way around: U+002F being a CS, the correct display is 31/12/1999, while if it where an ES, the correct display would have been 1999/12/31. I verified this with the Reference Implementation (where, confusingly, `/' is ES, so you need to use something else, like a comma). Btw, according to my testing, the current Firefox displays this as 31/12/1999. I don't have Opera or OO to check there, but it's possible that the OP was using old versions of these that were still using the old Unicode data base.
