1 package # This is JSON::backportPP
9 $JSON::PP56::VERSION = '1.08';
14 my $len = length $_[0]; # char length
16 use bytes; # byte length;
17 return $len != length $_[0]; # if !=, UTF8-flagged on.
27 sub utf8::downgrade ($;$) {
28 return 1 unless ( utf8::is_utf8( $_[0] ) );
30 if ( _is_valid_utf8( $_[0] ) ) {
32 for my $c ( unpack( "U*", $_[0] ) ) {
34 $downgrade .= pack("C", $c);
37 $downgrade .= pack("U", $c);
44 Carp::croak("Wide character in subroutine entry") unless ( $_[1] );
50 sub utf8::encode ($) { # UTF8 flag off
51 if ( utf8::is_utf8( $_[0] ) ) {
52 $_[0] = pack( "C*", unpack( "C*", $_[0] ) );
55 $_[0] = pack( "U*", unpack( "C*", $_[0] ) );
56 $_[0] = pack( "C*", unpack( "C*", $_[0] ) );
61 sub utf8::decode ($) { # UTF8 flag on
62 if ( _is_valid_utf8( $_[0] ) ) {
63 utf8::downgrade( $_[0] );
64 $_[0] = pack( "U*", unpack( "U*", $_[0] ) );
69 *JSON::PP::JSON_PP_encode_ascii = \&_encode_ascii;
70 *JSON::PP::JSON_PP_encode_latin1 = \&_encode_latin1;
71 *JSON::PP::JSON_PP_decode_surrogates = \&JSON::PP::_decode_surrogates;
72 *JSON::PP::JSON_PP_decode_unicode = \&JSON::PP::_decode_unicode;
74 unless ( defined &B::SVp_NOK ) { # missing in B module.
75 eval q{ sub B::SVp_NOK () { 0x02000000; } };
88 sprintf('\u%04x', $_) : sprintf('\u%x\u%x', JSON::PP::_encode_surrogates($_));
100 sprintf('\u%04x', $_) : sprintf('\u%x\u%x', JSON::PP::_encode_surrogates($_));
106 sub _unpack_emu { # for Perl 5.6 unpack warnings
107 return !utf8::is_utf8($_[0]) ? unpack('C*', $_[0])
108 : _is_valid_utf8($_[0]) ? unpack('U*', $_[0])
109 : unpack('C*', $_[0]);
120 |[\xC2-\xDF][\x80-\xBF]
121 |[\xE0][\xA0-\xBF][\x80-\xBF]
122 |[\xE1-\xEC][\x80-\xBF][\x80-\xBF]
123 |[\xED][\x80-\x9F][\x80-\xBF]
124 |[\xEE-\xEF][\x80-\xBF][\x80-\xBF]
125 |[\xF0][\x90-\xBF][\x80-\xBF][\x80-\xBF]
126 |[\xF1-\xF3][\x80-\xBF][\x80-\xBF][\x80-\xBF]
127 |[\xF4][\x80-\x8F][\x80-\xBF][\x80-\xBF]
133 $is_utf8 = 1 if (!defined $is_utf8);
136 $is_utf8 = 0 if (!defined $is_utf8);
137 if ($is_utf8) { # eventually, not utf8
154 JSON::PP56 - Helper module in using JSON::PP in Perl 5.6
158 JSON::PP calls internally.
162 Makamaka Hannyaharamitu, E<lt>makamaka[at]cpan.orgE<gt>
165 =head1 COPYRIGHT AND LICENSE
167 Copyright 2007-2009 by Makamaka Hannyaharamitu
169 This library is free software; you can redistribute it and/or modify
170 it under the same terms as Perl itself.