Perl Programming Interview Question:

How do you match one letter in the current locale?

Submitted by: Administrator

/[^W_d]/
We don't have full POSIX regexps, so you can't get at the isalpha() <ctype.h> macro save indirectly. You ask for one byte which is neither a non-alphanumunder, nor an under, nor a numeric. That leaves just the alphas, which is what you want.
Submitted by: Administrator