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Redirect subroutine output

by fil309 (Initiate)
on Jan 06, 2014 at 08:45 UTC ( #1069473=perlquestion: print w/ replies, xml ) Need Help??
fil309 has asked for the wisdom of the Perl Monks concerning the following question:

Hi, How can I redirect a subroutine output to a file without changing the subroutine? Thanks

Comment on Redirect subroutine output
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Re: Redirect subroutine output
by syphilis (Chancellor) on Jan 06, 2014 at 08:54 UTC
    Not sure if this counts as a "redirection to file":
    use strict; use warnings; open WR, '>', 'file.out' or die "Can't open WR for writing: $!"; print WR foo(); close WR or die "Can't close WR: $!"; sub foo { return 'FOO'; }
Re: Redirect subroutine output
by Anonymous Monk on Jan 06, 2014 at 09:16 UTC
    write a wrapper-sub of same name and use select to set the default filehandle for output.

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