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This is a great golf challenge!

Here's my best solution:

sub score { my$s;sub S{$_[0]=~X?10:$_[0]}$s+=($l=shift)=~X?10+($_[1]eq'/'?10:S($_[ +0])+S$_[1]):($r=shift)eq'/'?10+S$_[0]:$l+$r for 1..10;$s }
126 characters. (Or 125, if $r is replaced by a punctuation variable, since a space could then be eliminated.)

During a Chatterbox discussion, tye suggested using a regex to parse the score. This sounded promising, but unfortunately I ended up with a longer solution.

sub score { $"=my$s;sub S{$_[0]=~X?10:$_[0]}$S="@_";$S=~/(X)(?=(.)(.))|(.\/)(?=(.) +)|(.)(.)/g,$s+=$1?10+($3eq'/'?10:S($2)+S($3)):$4?10+S($5):$6+$7for 1. +.10;$s }
145 characters.

In reply to Re: (Golf) Let's go bowling by chipmunk
in thread (Golf) Let's go bowling by virtualsue

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