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Editing: json_pp
#!/usr/bin/perl BEGIN { pop @INC if $INC[-1] eq '.' } use strict; use Getopt::Long; use Encode (); use JSON::PP (); # imported from JSON-XS/bin/json_xs my %allow_json_opt = map { $_ => 1 } qw( ascii latin1 utf8 pretty indent space_before space_after relaxed canonical allow_nonref allow_singlequote allow_barekey allow_bignum loose escape_slash indent_length ); GetOptions( 'v' => \( my $opt_verbose ), 'f=s' => \( my $opt_from = 'json' ), 't=s' => \( my $opt_to = 'json' ), 'json_opt=s' => \( my $json_opt = 'pretty' ), 'V' => \( my $version ), ) or die "Usage: $0 [-V] [-f from_format] [-t to_format] [-json_opt options_to_json1[,options_to_json2[,...]]]\n"; if ( $version ) { print "$JSON::PP::VERSION\n"; exit; } $json_opt = '' if $json_opt eq '-'; my %json_opt; for my $opt (split /,/, $json_opt) { my ($key, $value) = split /=/, $opt, 2; $value = 1 unless defined $value; die "'$_' is not a valid json option" unless $allow_json_opt{$key}; $json_opt{$key} = $value; } my %F = ( 'json' => sub { my $json = JSON::PP->new; my $enc = /^\x00\x00\x00/s ? "utf-32be" : /^\x00.\x00/s ? "utf-16be" : /^.\x00\x00\x00/s ? "utf-32le" : /^.\x00.\x00/s ? "utf-16le" : "utf-8"; for my $key (keys %json_opt) { next if $key eq 'utf8'; $json->$key($json_opt{$key}); } $json->decode( Encode::decode($enc, $_) ); }, 'eval' => sub { my $v = eval "no strict;\n#line 1 \"input\"\n$_"; die "$@" if $@; return $v; }, ); my %T = ( 'null' => sub { "" }, 'json' => sub { my $json = JSON::PP->new->utf8; for my $key (keys %json_opt) { $json->$key($json_opt{$key}); } $json->canonical if $json_opt{pretty}; $json->encode( $_ ); }, 'dumper' => sub { require Data::Dumper; local $Data::Dumper::Terse = 1; local $Data::Dumper::Indent = 1; local $Data::Dumper::Useqq = 1; local $Data::Dumper::Quotekeys = 0; local $Data::Dumper::Sortkeys = 1; Data::Dumper::Dumper($_) }, ); $F{$opt_from} or die "$opt_from: not a valid fromformat\n"; $T{$opt_to} or die "$opt_from: not a valid toformat\n"; { local $/; binmode STDIN; $_ = <STDIN>; } $_ = $F{$opt_from}->(); $_ = $T{$opt_to}->(); print $_; __END__ =pod =encoding utf8 =head1 NAME json_pp - JSON::PP command utility =head1 SYNOPSIS json_pp [-v] [-f from_format] [-t to_format] [-json_opt options_to_json1[,options_to_json2[,...]]] =head1 DESCRIPTION json_pp converts between some input and output formats (one of them is JSON). This program was copied from L<json_xs> and modified. The default input format is json and the default output format is json with pretty option. =head1 OPTIONS =head2 -f -f from_format Reads a data in the given format from STDIN. Format types: =over =item json as JSON =item eval as Perl code =back =head2 -t Writes a data in the given format to STDOUT. =over =item null no action. =item json as JSON =item dumper as Data::Dumper =back =head2 -json_opt options to JSON::PP Acceptable options are: ascii latin1 utf8 pretty indent space_before space_after relaxed canonical allow_nonref allow_singlequote allow_barekey allow_bignum loose escape_slash indent_length Multiple options must be separated by commas: Right: -json_opt pretty,canonical Wrong: -json_opt pretty -json_opt canonical =head2 -v Verbose option, but currently no action in fact. =head2 -V Prints version and exits. =head1 EXAMPLES $ perl -e'print q|{"foo":"あい","bar":1234567890000000000000000}|' |\ json_pp -f json -t dumper -json_opt pretty,utf8,allow_bignum $VAR1 = { 'bar' => bless( { 'value' => [ '0000000', '0000000', '5678900', '1234' ], 'sign' => '+' }, 'Math::BigInt' ), 'foo' => "\x{3042}\x{3044}" }; $ perl -e'print q|{"foo":"あい","bar":1234567890000000000000000}|' |\ json_pp -f json -t dumper -json_opt pretty $VAR1 = { 'bar' => '1234567890000000000000000', 'foo' => "\x{e3}\x{81}\x{82}\x{e3}\x{81}\x{84}" }; =head1 SEE ALSO L<JSON::PP>, L<json_xs> =head1 AUTHOR Makamaka Hannyaharamitu, E<lt>makamaka[at]cpan.orgE<gt> =head1 COPYRIGHT AND LICENSE Copyright 2010 by Makamaka Hannyaharamitu This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself. =cut
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