/usr/share/perl5/Plucene/Search/PhraseScorer/Sloppy.pm is in libplucene-perl 1.25-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 | package Plucene::Search::PhraseScorer::Sloppy;
=head1 NAME
Plucene::Search::PhraseScorer::Sloppy - sloppy phrase scorer
=head1 SYNOPSIS
# isa Plucene::Search::PhraseScorer
=head1 DESCRIPTION
This is a sloppy phrase scorer
=head1 METHODS
=cut
use strict;
use warnings;
use List::Util qw(max);
use base 'Plucene::Search::PhraseScorer';
__PACKAGE__->mk_accessors(q{slop});
sub _phrase_freq {
my $self = shift;
my $end = 0;
$#{ $self->{pq} } = -1;
my $pp = $self->first;
while ($pp) {
$pp->first_position;
$end = max($end, $pp->position);
push @{ $self->{pq} }, $pp;
$pp = $pp->next_in_list;
}
my $freq = 0;
my $done = 0;
do {
my $pp = shift @{ $self->{pq} };
my $start = $pp->position;
my $next = $self->{pq}->[0]->position;
for (my $pos = $start ; $pos <= $next ; $pos = $pp->position) {
$start = $pos;
if (!$pp->next_position) {
$done = 1;
last;
}
}
my $length = $end - $start;
$freq += 1 / ($length + 1) if $length <= $self->slop;
$end = max($end, $pp->position);
push @{ $self->{pq} }, $pp;
} while (!$done);
return $freq;
}
1;
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