Hook::LexWrap allows you to install a pre- or post-wrapper (or both) around an existing subroutine. Unlike other modules that provide this capacity (e.g. Hook::PreAndPost and Hook::WrapSub), Hook::LexWrap implements wrappers in such a way that the standard `caller' function works correctly within the wrapped subroutine.
WWW: http://search.cpan.org/dist/Hook-LexWrap/
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