This file is indexed.

/usr/share/perl5/Font/TTF/Delta.pm is in libfont-ttf-perl 1.04-1.

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
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
package Font::TTF::Delta;

=head1 NAME 

Font::TTF::Delta - Opentype Device tables

=head1 DESCRIPTION

Each device table corresponds to a set of deltas for a particular point over
a range of ppem values.

=over 

=item first

The first ppem value in the range

=item last

The last ppem value in the range

=item val

This is an array of deltas corresponding to each ppem in the range between
first and last inclusive.

=item fmt

This is the fmt used (log2 of number bits per value) when the device table was
read. It is recalculated on output.

=back 

=head1 METHODS

=cut

use strict;
use Font::TTF::Utils;

=head2 new

Creates a new device table

=cut

sub new
{
    my ($class) = @_;
    my ($self) = {};

    bless $self, $class;
}


=head2 read

Reads a device table from the given IO object at the current location

=cut

sub read
{
    my ($self, $fh) = @_;
    my ($dat, $fmt, $num, $i, $j, $mask);

    $fh->read($dat, 6);
    ($self->{'first'}, $self->{'last'}, $fmt) = TTF_Unpack("S3", $dat);
    $self->{'fmt'} = $fmt;

    $fmt = 1 << $fmt;
    $num = ((($self->{'last'} - $self->{'first'} + 1) * $fmt) + 15) >> 8;
    $fh->read($dat, $num);

    $mask = (0xffff << (16 - $fmt)) & 0xffff;
    $j = 0;
    for ($i = $self->{'first'}; $i <= $self->{'last'}; $i++)
    {
        if ($j == 0)
        {
            $num = TTF_Unpack("S", substr($dat, 0, 2));
            substr($dat, 0, 2) = '';
        }
        push (@{$self->{'val'}}, ($num & $mask) >> (16 - $fmt));
        $num <<= $fmt;
        $j += $fmt;
        $j = 0 if ($j >= 16);
    }
    $self;
}


=head2 out($fh, $style)

Outputs a device table to the given IO object at the current location, or just
returns the data to be output if $style != 0

=cut

sub out
{
    my ($self, $fh, $style) = @_;
    my ($dat, $fmt, $num, $mask, $j, $f, $out);

    foreach $f (@{$self->{'val'}})
    {
        my ($tfmt) = $f > 0 ? $f + 1 : -$f;
        $fmt = $tfmt if $tfmt > $fmt;
    }

    if ($fmt > 8)
    { $fmt = 3; }
    elsif ($fmt > 2)
    { $fmt = 2; }
    else
    { $fmt = 1; }

    $out = TTF_Pack("S3", $self->{'first'}, $self->{'last'}, $fmt);

    $fmt = 1 << $fmt;
    $mask = 0xffff >> (16 - $fmt);
    $j = 0; $dat = 0;
    foreach $f (@{$self->{'val'}})
    {
        $dat |= ($f & $mask) << (16 - $fmt - $j);
        $j += $fmt;
        if ($j >= 16)
        {
            $j = 0;
            $out .= TTF_Pack("S", $dat);
            $dat = 0;
        }
    }
    $out .= pack('n', $dat) if ($j > 0);
    $fh->print($out) unless $style;
    $out;
}

=head2 $d->signature()

Returns a content based identifying string for this delta for
compression purposes

=cut

sub signature
{
    my ($self) = @_;
    return join (",", $self->{'first'}, $self->{'last'}, @{$self->{'val'}});
}


=head2 $d->out_xml($context)

Outputs a delta in XML

=cut

sub out_xml
{
    my ($self, $context, $depth) = @_;
    my ($fh) = $context->{'fh'};

    $fh->printf("%s<delta first='%s' last='%s'>\n", $depth, $self->{'first'}, $self->{'last'});
    $fh->print("$depth$context->{'indent'}" . join (' ', @{$self->{'val'}}) . "\n") if defined ($self->{'val'});
    $fh->print("$depth</delta>\n");
}

1;

=head1 AUTHOR

Martin Hosken L<Martin_Hosken@sil.org>. 


=head1 LICENSING

Copyright (c) 1998-2013, SIL International (http://www.sil.org) 

This module is released under the terms of the Artistic License 2.0. 
For details, see the full text of the license in the file LICENSE.



=cut