/usr/share/perl5/XMLTV/Grep.pm is in libxmltv-perl 0.5.63-2.
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 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 | # This is intended mostly as a helper library for tv_grep and not for
# general purpose use (yet).
#
# $Id: Grep.pm,v 1.5 2004/01/03 14:52:53 epaepa Exp $
#
package XMLTV::Grep;
use strict;
use XMLTV;
use base 'Exporter'; our @EXPORT_OK;
@EXPORT_OK = qw(get_matcher);
my %key_type = %{XMLTV::list_programme_keys()};
# Parameters:
# key found in programme hashes
# ignore-case flag
#
# Returns:
# extra argument type needed to filter on this key:
# undef: no extra argument required
# 'regexp': extra argument should be regexp
# 'empty': extra argument must be the empty string, and is ignored
#
# subroutine which may take an argument (depending on whether
# argument type is 'regexp'), and matches a programme hash in $_.
#
sub get_matcher( $$ ) {
my ($key, $ignore_case) = @_;
my ($handler, $mult) = @{$key_type{$key}};
if ($handler eq 'presence') {
die "bad multiplicity $mult for 'presence'"
if $mult ne '?';
return [ undef, sub { exists $_->{$key} } ];
}
elsif ($handler eq 'scalar') {
if ($mult eq '?') {
return [ 'regexp', sub {
my $regexp = shift;
return 0 if not exists $_->{$key};
return 1 if $regexp eq '';
if ($ignore_case) {
return $_->{$key} =~ /$regexp/i;
}
else {
return $_->{$key} =~ /$regexp/;
}
} ];
}
elsif ($mult eq '1') {
return [ 'regexp', sub {
my $regexp = shift;
die if not exists $_->{$key};
return 1 if $regexp eq '';
if ($ignore_case) {
return $_->{$key} =~ /$regexp/i;
}
else {
return $_->{$key} =~ /$regexp/;
}
} ];
}
elsif ($mult eq '*') {
return [ 'regexp', sub {
my $regexp = shift;
# It is possible (though unusual) for the key
# to exist but be an empty list.
#
return 0 if not exists $_->{$key} or not @{$_->{$key}};
return 1 if $regexp eq '';
foreach (@{$_->{$key}}) {
return 1 if ($ignore_case ? /$regexp/i : /$regexp/);
}
return 0;
} ];
}
elsif ($mult eq '+') {
return [ 'regexp', sub {
my $regexp = shift;
die if not @{$_->{$key}};
return 1 if $regexp eq '';
foreach (@{$_->{$key}}) {
return 1 if ($ignore_case ? /$regexp/i : /$regexp/);
}
return 0;
} ];
}
else { die }
}
elsif ($handler =~ m!^with-lang(?:/[a-z]*)?$!) {
if ($mult eq '?') {
return [ 'regexp', sub {
my $regexp = shift;
return 0 if not exists $_->{$key};
return 1 if $regexp eq '';
for ($_->{$key}->[0]) {
return 0 if not defined;
if ($ignore_case) {
return /$regexp/i;
}
else {
return /$regexp/;
}
}
} ];
}
elsif ($mult eq '1') {
return [ 'regexp', sub {
my $regexp = shift;
die if not exists $_->{$key};
return 1 if $regexp eq '';
for ($_->{$key}->[0]) {
if (not defined) {
warn "undef text for $key";
return 0;
}
if ($ignore_case) {
return /$regexp/i;
}
else {
return /$regexp/;
}
}
} ];
}
elsif ($mult eq '*') {
return [ 'regexp', sub {
my $regexp = shift;
return 0 if not exists $_->{$key} or not @{$_->{$key}};
return 1 if $regexp eq '';
foreach (map { $_->[0] } @{$_->{$key}}) {
if (not defined) {
warn "undef text for $key";
next;
}
return 1 if ($ignore_case ? /$regexp/i : /$regexp/);
}
return 0;
} ];
}
elsif ($mult eq '+') {
return [ 'regexp', sub {
my $regexp = shift;
die if not @{$_->{$key}};
return 1 if $regexp eq '';
foreach (map { $_->[0] } @{$_->{$key}}) {
if (not defined) {
warn "undef text for $key";
next;
}
return 1 if ($ignore_case ? /$regexp/i : /$regexp/);
}
return 0;
} ];
}
else { die }
}
elsif ($handler eq 'icon'
or $handler eq 'credits'
or $handler eq 'length' # TODO
or $handler eq 'episode-num' # TODO
or $handler eq 'video'
or $handler eq 'audio'
or $handler eq 'previously-shown'
or $handler eq 'subtitles'
or $handler eq 'rating' # TODO
or $handler eq 'star-rating' # TODO
) {
# Cannot query on this except for presence. But empty string
# argument for future expansion.
#
return [ 'empty', sub { exists $_->{$key} } ];
}
else { die }
}
1;
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