Hi everyone, I am in need of assistance D: I am writing a battleship program, and I take in user coordinates with the format of a10, b1 , c5 etc. The module I have takes in the coordinates with the format of A:10, B:1, C:5 etc. I wrote some very poor code which has uninitialized errors, but it gets the job done. This is it here: 
  $combined = uc($topLeftCoord);
            @chars = (split //, $combined);
            print "@chars\n";
            if ($chars[2] == 0){
                $combined = $chars[0] . ":" . $chars[1] . $chars[2];
            }
            else{
                $combined = $chars[0] . ":" . $chars[1];
            }

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This is just a bit of it, but it's where the problem lies. I uppercase the letter, split on every new character, print for debugging, my board is 10x10, so the max it can be is 10, so if the 3rd element is 0, I'll concatenate it onto the string for use in my module. It's very poorly written but that's why I'm here, to make it better =P. How would I use substitution with regular expressions to do this job? Or would it be better to split and concatenate. Thanks for any help!

In reply to How would I change a10 into A:10 in perl? by Tails

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