That code is broken.

• You can't declare $re on the same line as you're using it. It won't even compile (under strict vars).

• There's a I reason I used a package variable instead of a lexical. It'll bite you if you interpolate into $re. Best to always use a package variable to avoid the problem entirely.

• While not a bug per say, the s modifiers on both regeps are useless because you don't use ..

        our $re
        local $re = qr{\[(?:(?>[^\[\]]+)|(??{$re}))*\]};
        for (;;) {
                last unless $tempstr =~ s/(\[\w+?\s*=\s*($re|\n|[^\[\]
+])+\])/assign($1)/gie;
        }
[download]

It's unfortunate that you modify things without knowing why they were done in the first place.

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