/usr/share/perl5/JSON/backportPP/Compat5006.pm is in libjson-perl 2.90-1.
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 | package # This is JSON::backportPP
JSON::backportPP56;
use 5.006;
use strict;
my @properties;
$JSON::PP56::VERSION = '1.08';
BEGIN {
sub utf8::is_utf8 {
my $len = length $_[0]; # char length
{
use bytes; # byte length;
return $len != length $_[0]; # if !=, UTF8-flagged on.
}
}
sub utf8::upgrade {
; # noop;
}
sub utf8::downgrade ($;$) {
return 1 unless ( utf8::is_utf8( $_[0] ) );
if ( _is_valid_utf8( $_[0] ) ) {
my $downgrade;
for my $c ( unpack( "U*", $_[0] ) ) {
if ( $c < 256 ) {
$downgrade .= pack("C", $c);
}
else {
$downgrade .= pack("U", $c);
}
}
$_[0] = $downgrade;
return 1;
}
else {
Carp::croak("Wide character in subroutine entry") unless ( $_[1] );
0;
}
}
sub utf8::encode ($) { # UTF8 flag off
if ( utf8::is_utf8( $_[0] ) ) {
$_[0] = pack( "C*", unpack( "C*", $_[0] ) );
}
else {
$_[0] = pack( "U*", unpack( "C*", $_[0] ) );
$_[0] = pack( "C*", unpack( "C*", $_[0] ) );
}
}
sub utf8::decode ($) { # UTF8 flag on
if ( _is_valid_utf8( $_[0] ) ) {
utf8::downgrade( $_[0] );
$_[0] = pack( "U*", unpack( "U*", $_[0] ) );
}
}
*JSON::PP::JSON_PP_encode_ascii = \&_encode_ascii;
*JSON::PP::JSON_PP_encode_latin1 = \&_encode_latin1;
*JSON::PP::JSON_PP_decode_surrogates = \&JSON::PP::_decode_surrogates;
*JSON::PP::JSON_PP_decode_unicode = \&JSON::PP::_decode_unicode;
unless ( defined &B::SVp_NOK ) { # missing in B module.
eval q{ sub B::SVp_NOK () { 0x02000000; } };
}
}
sub _encode_ascii {
join('',
map {
$_ <= 127 ?
chr($_) :
$_ <= 65535 ?
sprintf('\u%04x', $_) : sprintf('\u%x\u%x', JSON::PP::_encode_surrogates($_));
} _unpack_emu($_[0])
);
}
sub _encode_latin1 {
join('',
map {
$_ <= 255 ?
chr($_) :
$_ <= 65535 ?
sprintf('\u%04x', $_) : sprintf('\u%x\u%x', JSON::PP::_encode_surrogates($_));
} _unpack_emu($_[0])
);
}
sub _unpack_emu { # for Perl 5.6 unpack warnings
return !utf8::is_utf8($_[0]) ? unpack('C*', $_[0])
: _is_valid_utf8($_[0]) ? unpack('U*', $_[0])
: unpack('C*', $_[0]);
}
sub _is_valid_utf8 {
my $str = $_[0];
my $is_utf8;
while ($str =~ /(?:
(
[\x00-\x7F]
|[\xC2-\xDF][\x80-\xBF]
|[\xE0][\xA0-\xBF][\x80-\xBF]
|[\xE1-\xEC][\x80-\xBF][\x80-\xBF]
|[\xED][\x80-\x9F][\x80-\xBF]
|[\xEE-\xEF][\x80-\xBF][\x80-\xBF]
|[\xF0][\x90-\xBF][\x80-\xBF][\x80-\xBF]
|[\xF1-\xF3][\x80-\xBF][\x80-\xBF][\x80-\xBF]
|[\xF4][\x80-\x8F][\x80-\xBF][\x80-\xBF]
)
| (.)
)/xg)
{
if (defined $1) {
$is_utf8 = 1 if (!defined $is_utf8);
}
else {
$is_utf8 = 0 if (!defined $is_utf8);
if ($is_utf8) { # eventually, not utf8
return;
}
}
}
return $is_utf8;
}
1;
__END__
=pod
=head1 NAME
JSON::PP56 - Helper module in using JSON::PP in Perl 5.6
=head1 DESCRIPTION
JSON::PP calls internally.
=head1 AUTHOR
Makamaka Hannyaharamitu, E<lt>makamaka[at]cpan.orgE<gt>
=head1 COPYRIGHT AND LICENSE
Copyright 2007-2012 by Makamaka Hannyaharamitu
This library is free software; you can redistribute it and/or modify
it under the same terms as Perl itself.
=cut
|