This might be easiest: 

$field =~ s/((.)(?:\\|\/)(.))/
              if ($2 eq 'C' && $3 eq 'O') {
                 $1
              } elsif (ord($2) >= ord('0') && ord($2) <= ord('9')) {
                 $1
              } elsif (ord($3) >= ord('0') && ord($3) <= ord('9')) {
                 $1
              } else {
                 "$2 & $3"
              }
           /xeg;

[download]

Update: I had a "==" where I needed a "eq". Also fixed the problem Roy found.

In reply to Re: Regex Question by ikegami
in thread Regex Question by shemp

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