in reply to splitting a line by user-defined separators

uhm, let's see...
perl -le '$_="foo;bar:quux-blorflydick";my $p = "[".shift()."]"; print + "@{[split/$p/,$_]}"' ';:y-' foo bar quux blorfl dick

Yes. It's possible. Just make your split chars into a character class and use that in split (escaping meta-chars where necessary).

--shmem

_($_=" "x(1<<5)."?\n".q·/)Oo.  G°\        /
                              /\_¯/(q    /
----------------------------  \__(m.====·.(_("always off the crowd"))."·
");sub _{s./.($e="'Itrs `mnsgdq Gdbj O`qkdq")=~y/"-y/#-z/;$e.e && print}