A workmate asked me today what is the best way to transform "A3xyz45M98AB7Z9" into "A3:xyz45:M98:AB7:Z9". I suggested: 

my $s = 'A3xyz45M98AB7Z9';
my $t = join(':', $s =~ /[A-Za-z]+\d+/g);
print "s='$s' t='$t'\n";

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and he seemed happy with that. In the spirit of TMTOWTDI how would you do it?

In reply to Best way to put : between fields in a string by eyepopslikeamosquito

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