>>>>> "Y" == Yukihiro Matsumoto <matz / zetabits.com> writes:

Y> I don't think I allowed this notation, except vague memory of ancient
Y> time.  It might acceptable on pre 1.0 Ruby.  Should I check old archive
Y> (for history record)?

 Apparently 1.1, 1.2 accept it

pigeon% ruby -ve 'x = ?\^d; p x'
ruby 1.1b5(98/01/19) [i686-linux]
4
pigeon% 


pigeon% ruby -ve 'x = ?\^d; p x'
ruby 1.2.6(99/07/15) [i686-linux]
4
pigeon%


Guy Decoux