diff options
Diffstat (limited to 'Master/tlpkg/tlperl.straw/lib/JSON/PP5005.pm')
-rwxr-xr-x | Master/tlpkg/tlperl.straw/lib/JSON/PP5005.pm | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/Master/tlpkg/tlperl.straw/lib/JSON/PP5005.pm b/Master/tlpkg/tlperl.straw/lib/JSON/PP5005.pm new file mode 100755 index 00000000000..9b69e3955c8 --- /dev/null +++ b/Master/tlpkg/tlperl.straw/lib/JSON/PP5005.pm @@ -0,0 +1,148 @@ +package JSON::PP5005; + +use 5.005; +use strict; + +my @properties; + +$JSON::PP5005::VERSION = '1.09'; + +BEGIN { + + sub utf8::is_utf8 { + 0; # It is considered that UTF8 flag off for Perl 5.005. + } + + sub utf8::upgrade { + } + + sub utf8::downgrade { + 1; # must always return true. + } + + sub utf8::encode { + } + + sub utf8::decode { + } + + *JSON::PP::JSON_PP_encode_ascii = \&_encode_ascii; + *JSON::PP::JSON_PP_encode_latin1 = \&_encode_latin1; + *JSON::PP::JSON_PP_decode_surrogates = \&_decode_surrogates; + *JSON::PP::JSON_PP_decode_unicode = \&_decode_unicode; + + # missing in B module. + sub B::SVf_IOK () { 0x00010000; } + sub B::SVf_NOK () { 0x00020000; } + sub B::SVf_POK () { 0x00040000; } + sub B::SVp_IOK () { 0x01000000; } + sub B::SVp_NOK () { 0x02000000; } + + $INC{'bytes.pm'} = 1; # dummy +} + + + +sub _encode_ascii { + join('', map { $_ <= 127 ? chr($_) : sprintf('\u%04x', $_) } unpack('C*', $_[0]) ); +} + + +sub _encode_latin1 { + join('', map { chr($_) } unpack('C*', $_[0]) ); +} + + +sub _decode_surrogates { # from http://homepage1.nifty.com/nomenclator/unicode/ucs_utf.htm + my $uni = 0x10000 + (hex($_[0]) - 0xD800) * 0x400 + (hex($_[1]) - 0xDC00); # from perlunicode + my $bit = unpack('B32', pack('N', $uni)); + + if ( $bit =~ /^00000000000(...)(......)(......)(......)$/ ) { + my ($w, $x, $y, $z) = ($1, $2, $3, $4); + return pack('B*', sprintf('11110%s10%s10%s10%s', $w, $x, $y, $z)); + } + else { + Carp::croak("Invalid surrogate pair"); + } +} + + +sub _decode_unicode { + my ($u) = @_; + my ($utf8bit); + + if ( $u =~ /^00([89a-f][0-9a-f])$/i ) { # 0x80-0xff + return pack( 'H2', $1 ); + } + + my $bit = unpack("B*", pack("H*", $u)); + + if ( $bit =~ /^00000(.....)(......)$/ ) { + $utf8bit = sprintf('110%s10%s', $1, $2); + } + elsif ( $bit =~ /^(....)(......)(......)$/ ) { + $utf8bit = sprintf('1110%s10%s10%s', $1, $2, $3); + } + else { + Carp::croak("Invalid escaped unicode"); + } + + return pack('B*', $utf8bit); +} + + +sub JSON::PP::incr_parse { + local $Carp::CarpLevel = 1; + ( $_[0]->{_incr_parser} ||= JSON::PP::IncrParser->new )->incr_parse( @_ ); +} + + +sub JSON::PP::incr_text { + $_[0]->{_incr_parser} ||= JSON::PP::IncrParser->new; + + if ( $_[0]->{_incr_parser}->{incr_parsing} ) { + Carp::croak("incr_text can not be called when the incremental parser already started parsing"); + } + + $_[0]->{_incr_parser}->{incr_text} = $_[1] if ( @_ > 1 ); + $_[0]->{_incr_parser}->{incr_text}; +} + + +sub JSON::PP::incr_skip { + ( $_[0]->{_incr_parser} ||= JSON::PP::IncrParser->new )->incr_skip; +} + + +sub JSON::PP::incr_reset { + ( $_[0]->{_incr_parser} ||= JSON::PP::IncrParser->new )->incr_reset; +} + + +1; +__END__ + +=pod + +=head1 NAME + +JSON::PP5005 - Helper module in using JSON::PP in Perl 5.005 + +=head1 DESCRIPTION + +JSON::PP calls internally. + +=head1 AUTHOR + +Makamaka Hannyaharamitu, E<lt>makamaka[at]cpan.orgE<gt> + + +=head1 COPYRIGHT AND LICENSE + +Copyright 2007-2009 by Makamaka Hannyaharamitu + +This library is free software; you can redistribute it and/or modify +it under the same terms as Perl itself. + +=cut + |