/usr/share/doc/libfilter-perl/examples/method/Subst.pm is in libfilter-perl 1.39-1build1.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 | package Subst ;
use Filter::Util::Call ;
use Carp ;
use strict ;
use warnings ;
sub filter
{
my ($self) = @_ ;
my ($status) ;
my ($from) = $self->[0] ;
my ($to) = $self->[1] ;
s/$from/$to/
if ($status = filter_read()) > 0 ;
$status ;
}
sub import
{
my ($self, @args) = @_ ;
croak("usage: use Subst qw(from to)")
unless @args == 2 ;
filter_add([ @args ]) ;
}
1 ;
|