easy regexp by shinh

perl -pe 's%[^[]*(?=\])%join",",$&=~/./g%eg;y/()|[]/{},{}/;s%({([^}]*)}|.)\?%{,$+}%g;$_=`bash -c "echo $_"`;y/ /
/'

Note that non-ascii characters in the above source code will be escaped (such as \x9f).

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