context. your example has $sk in scalar context. you need list context, i.e. ($sk)

perl -e'$_=q#: 13_2: 12/"{>: 8_4) (_4: 6/2"-2; 3;-2"\2: 5/7\_/\7: 12m m::#;s#:#\n#g;s#(\D)(\d+)#$1x$2#ge;print'

In reply to Re: Regex not behaving as expected by pizza_milkshake
in thread Regex not behaving as expected by Popcorn Dave

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