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Re^2: localizing handles with anonymous subroutines

by particle (Vicar)
on Jun 10, 2002 at 16:13 UTC ( [id://173209]=note: print w/replies, xml ) Need Help??


in reply to Re: localizing handles with anonymous subroutines
in thread localizing handles with anonymous subroutines

yes, there's a huge advantage. do is not a subroutine. it cannot take parameters. just try to do this!

my %dispatch = (
  sub_get_files => sub{ # takes one arg
    local *DH;
    opendir( DH, $_[0] ) or die 'Cannot open ' . $_[0];
    return grep { -f $_ } readdir(DH)
  },
);

my @files = $dispatch{sub_get_files}->( $dir );

[download]
do executes immediately, and would spit the results into the hash. icky.<p

~Particle *accelerates*

In Section Cool Uses for Perl

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