Revert 205057 "Add JSON.pm to third_party"

trunk/src/third_party/JSON/JSON-2.59/blib/lib/JSON/backportPP/Compat5006.pm

Index: trunk/src/third_party/JSON/JSON-2.59/blib/lib/JSON/backportPP/Compat5006.pm
===================================================================
--- trunk/src/third_party/JSON/JSON-2.59/blib/lib/JSON/backportPP/Compat5006.pm	(revision 205060)
+++ trunk/src/third_party/JSON/JSON-2.59/blib/lib/JSON/backportPP/Compat5006.pm	(working copy)
@@ -1,173 +0,0 @@
-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
-