Keyword for exclusive or in ruby?

Question

Does Ruby have a plain-English keyword for exclusive or, like they have \"and\" and \"or\"? If not, is this because exclusive or doesn\'t allow evaluation short-cutting?

Answer 1

As an alternative to Matt Van Horn's double negation trick for using XOR on arbitrary types, you can chain another XOR test, starting with nil. i.e.:

!!foo ^ !!bar

is equivalent to

nil ^ foo ^ bar

This looks neater to my eye, and I suppose requires one less logical operation