Generate list of all possible permutations of a string

Question

How would I go about generating a list of all possible permutations of a string between x and y characters in length, containing a variable list of characters.

Any l

Answer 1

In Perl, if you want to restrict yourself to the lowercase alphabet, you can do this:

my @result = ("a" .. "zzzz");

This gives all possible strings between 1 and 4 characters using lowercase characters. For uppercase, change "a" to "A" and "zzzz" to "ZZZZ".

For mixed-case it gets much harder, and probably not doable with one of Perl's builtin operators like that.