5/15    Perl regular expression question:
        I have a list of strings that I want to remove from a file.
        I tried to use s/$string//g for each string, but had problems
        when the $string contained special characters like (, /, etc.
        Is there a way to quote the $string so it will work?  I tried
        qr, but that didn't do the trick.
        \_ s/\Q$string\E//g