Been banging away at this now for HOURS, but again I am too stupid and must yield to the superior intellects..

I want to take a string and flip chars 1&2, then 2&3, etc. I got it where I could flip 1&2, then 3&4, but that isn't quite it. I keep running into this one problem and I can't figure out why. Here is my code (sad but true):

for (@words) {
   while(/(.)/g) {
        $flip = $_;
        $flip =~ s/$1\./\.$1/ge; # flip match + next char
        print $flip;
        }
   }

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I am getting various errors, but nothing helpful in spite of using "perl -w". I am using the $flip var so I don't change the value of $_ ( I want to do some more stuff later on with it, and I want to stay the same throughout.. probably a better way to do that too, but we only know what we know). Can I not call $1 in my search and replace?? It never seems to work right. It does seem to work if I copy $1 to another var and then use that in my regexp.. I really need to sit down with my "Mastering Regular Expressions" book and quit pestering you guys. =)

So, the output of say "jigglewort" is:

ijgglewort
jgiglewort
jigglewort
jiglgewort
...

The current error message is:
syntax error at flipchar.pl line 19, near "\."

In reply to YET another regexp puzzle by carric

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