Yeah, \\ means \\. It's \n \r \t and \" that are
treated specially.
Though I realized Jarc needs a way
to enter non-printable characters, so I've added
\f
\a
\e
\0*oo*
\x*hh*
\u*hhhh*
None of those interfere with regular expressions. Though I still don't have an
intuitive way to put \e in a string. You can do \x5ce now (in Jarc 16)
but that's ugly. I guess \\ needs to be just \ when it's followed
by n r t f a e " 0 x or h. That's getting a bit complex, but I guess it's intuitive. Or maybe I should just add a regular expression literal with / delimiters like Perl has.
