Bracket Matching by I., S.

3 :0;._2(1!:1)3
wd>(*%<./R){'yes';'failed at: '&,&.>'EOL';B{~R}.~{.I.0>R=:}.@]`,@.(*@+{.)`,@.(]0><./)/&.|._4+y i.~5|.B=:'X([{<>}])'

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

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