/usr/share/perl5/Mail/Box/MH/Labels.pm is in libmail-box-perl 2.117-1.
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 | # Copyrights 2001-2014 by [Mark Overmeer].
# For other contributors see ChangeLog.
# See the manual pages for details on the licensing terms.
# Pod stripped from pm file by OODoc 2.01.
use strict;
package Mail::Box::MH::Labels;
use vars '$VERSION';
$VERSION = '2.117';
use base 'Mail::Reporter';
use Mail::Message::Head::Subset;
use File::Copy;
use Carp;
#-------------------------------------------
sub init($)
{ my ($self, $args) = @_;
$self->SUPER::init($args);
$self->{MBML_filename} = $args->{filename}
or croak "No label filename specified.";
$self;
}
#-------------------------------------------
sub filename() {shift->{MBML_filename}}
#-------------------------------------------
sub get($)
{ my ($self, $msgnr) = @_;
$self->{MBML_labels}[$msgnr];
}
#-------------------------------------------
sub read()
{ my $self = shift;
my $seq = $self->filename;
open SEQ, '<:raw', $seq
or return;
my @labels;
local $_;
while(<SEQ>)
{ s/\s*\#.*$//;
next unless length;
next unless s/^\s*(\w+)\s*\:\s*//;
my $label = $1;
my $set = 1;
if($label eq 'cur' ) { $label = 'current' }
elsif($label eq 'unseen') { $label = 'seen'; $set = 0 }
foreach (split /\s+/)
{ if( /^(\d+)\-(\d+)\s*$/ )
{ push @{$labels[$_]}, $label, $set foreach $1..$2;
}
elsif( /^\d+\s*$/ )
{ push @{$labels[$_]}, $label, $set;
}
}
}
close SEQ;
$self->{MBML_labels} = \@labels;
$self;
}
#-------------------------------------------
sub write(@)
{ my $self = shift;
my $filename = $self->filename;
# Remove when no messages are left.
unless(@_)
{ unlink $filename;
return $self;
}
open my $out, '>:raw', $filename or return;
$self->print($out, @_);
close $out;
$self;
}
#-------------------------------------------
sub append(@)
{ my $self = shift;
my $filename = $self->filename;
open(my $out, '>>:raw', $filename) or return;
$self->print($out, @_);
close $out;
$self;
}
#-------------------------------------------
sub print($@)
{ my ($self, $out) = (shift, shift);
# Collect the labels from the selected messages.
my %labeled;
foreach my $message (@_)
{ my $labels = $message->labels;
(my $seq = $message->filename) =~ s!.*/!!;
push @{$labeled{unseen}}, $seq
unless $labels->{seen};
foreach (keys %$labels)
{ push @{$labeled{$_}}, $seq
if $labels->{$_};
}
}
delete $labeled{seen};
# Write it out
local $" = ' ';
foreach (sort keys %labeled)
{
my @msgs = @{$labeled{$_}}; #they are ordered already.
$_ = 'cur' if $_ eq 'current';
print $out "$_:";
while(@msgs)
{ my $start = shift @msgs;
my $end = $start;
$end = shift @msgs
while @msgs && $msgs[0]==$end+1;
print $out ($start==$end ? " $start" : " $start-$end");
}
print $out "\n";
}
$self;
}
#-------------------------------------------
1;
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