I think much easier would be to just:
perl -MO=Concise -e'foo' | wc -l
Example:
5;0 juerd@atlas:~$ perl -MO=Concise /usr/bin/cpanp | wc -l
/usr/bin/cpanp syntax OK
260
The cpanp binary has a score of 260.
5;0 juerd@atlas:~$ perl -MO=Concise -e'$t' 2> /dev/null | wc -l
5
5;0 juerd@atlas:~$ perl -MO=Concise -e'$$t' 2> /dev/null | wc -l
6
5;0 juerd@atlas:~$ perl -MO=Concise -e'$$t[0]->{x}' 2> /dev/null | wc
+-l
11
5;0 juerd@atlas:~$ perl -MO=Concise -e'$$t[0]{x}' 2> /dev/null | wc -l
11
5;0 juerd@atlas:~$ perl -MO=Concise -e'print $$t[0]{x}' 2> /dev/null |
+ wc -l
13
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