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Postings from April 2011
On 04/30/2011 01:43 PM, Karl Williamson wrote: > On 04/30/2011 01:12 PM, Tom Christiansen wrote: >> Isn't 0xDF and "SS" *the* big problem? I don't think the others are >> troublesome, are they? What about not generating multichar folds in >> charclasses that contain nothing over 255? Or would that be resurrecting >> the Unicode Bug? >> >> --tom >> > > I think you're right that all or nearly all existing code that's going > to get broken will be over ß and ss. > > The Unicode Bug is about utf8 vs non-utf8 encoding having different > semantics, so no, this wouldn't be resurrecting it. But it is kind of > like the Unicode bug, where addition of a new character to the class > would suddenly change the behavior of the class for non-obvious and not > really related reasons. > > I would prefer a more uniform approach of what I've said before, or we > just exclude this one code point always for 5.14. But I think your > approach is much better than releasing 5.14 as-is. > > (And BTW, in 5.16 I think it would be something like "use re folding X" > where X is one of "simple" "full" "nfd", nfkd, etc.) > In thinking about this some more, given the bug that Nicholas found that affects all multi-character folds, not just \xdf, in character classes, I think it would be best to just not offer any of them in 5.14.Thread Previous | Thread Next