Hi thanks for this great library.
You have unicode characters embedded in your code so you need to 'use
utf8;' at the top of your file. See https://metacpan.org/module/utf8
I guess you could also convert all your unicode characters to ascii but
its simpler to just add the one line of code.
Because you don't do this, users get different unicode results depending
on whether they use FMT_COMMON or FMT_SYMBOL because the FMT_COMMON
characters are unicode and the FMT_SYMBOL characters are ascii
representations of unicode. Uh, I hope this paragraph makes sense!
Thanks!
-Eric
RT for rt.cpan.org