Today's programming challenge - How's your Range-Fu ?

[Panke via Digitalmars-d]

>
> Yes, again and again I encountered length related bugs with 
> Unicode characters. Normalization is not 100% reliable.

I think it is 100% reliable, it just doesn't make the problems go 
away. It just guarantees that two strings normalized to the same 
form are binary equal iff they are equal in the unicode sense. 
Nothing about columns or string length or grapheme count.