Mark Crispin wrote:
In many regions where Latin
diacriticals are used, there is no acceptable transform of a surname to a
form that does not use diacriticals. Simply omitting the diacritical
causes (at least to the inhabitants of those regions) a misspelling.
Ah, this one's easy. Local parts aren't limited to Latin letters,
they can use all the ASCII printables. Diacriticals are available
there, albeit in characters that are shared with other uses.
<dej`a_vu(_at_)foo(_dot_)example> is a perfectly valid email address already.
It doesn't start to get tricky until we get into the eastern European
languages -- ASCII only intentionally provides western European
diacriticals.
Cue the debate about whether the diacritic should go before or after
the base letter.
-zefram