It might be nice to have a tool that is Perl with a taint mode or something like it left in for development and testing. The main language could have it completely gone so there's no performance penalty. Unfortunately if done just that way it's likely to rot. A completely separate analysis tool may be a better bet.

In reply to Re^2: Proposed change regarding "Taint" support by mr_mischief
in thread Proposed change regarding "Taint" support by syphilis

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