in reply to argument to delete function

As far as I know, delete and exists are special-cased by the parser, so you can't write your own function that behaves like either of them in pure Perl. (Might be possible with XS, not sure).

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Re^2: argument to delete function
by ssandv (Hermit) on Jun 15, 2010 at 18:32 UTC

    Should be doable with a source filter, so technically Perl, though "pure" might be a very, very strong word to use with regard to source filters. :-)

    Note to OP: no, you don't want to write a source filter.

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