/usr/share/doc/libfilter-perl/examples/closure/Count.pm is in libfilter-perl 1.57-1.
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 30 31 32 | package
Count ;
use Filter::Util::Call ;
use strict ;
use warnings ;
sub import
{
my ($self) = @_ ;
my ($count) = 0 ;
filter_add(
sub
{
my ($status) ;
if (($status = filter_read()) > 0 ) {
s/Joe/Jim/g ;
++ $count ;
}
elsif ($count >= 0) { # EOF
$_ = "print q[Made $count substitutions\n] ;" ;
$status = 1 ;
$count = -1 ;
}
$status ;
})
}
1 ;
|