I wrote:
As one anecdote (which is even less like "data" than two anecdotes), I could not find any of the characters IJ ij DŽ Dž dž LJ Lj lj NJ Nj nj or their hex equivalents in any of the CLDR keyboard definitions. I'd imagine that users just type the two characters separately, and that consequently most data in the real world is like that.
Some off-list messages have helped to remind me that in the context of titlecase and swapcase, I should not have included IJ and ij (U+0132 and U+0133) in that list. There is clearly no question about how swapcase should handle those. Sorry for the distraction.
-- Doug Ewell | http://ewellic.org | Thornton, CO 🇺🇸
