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returns other blessed objects, those will be handled in the same
way. C<TO_JSON> must take care of not causing an endless recursion cycle
(== crash) in this case. The name of C<TO_JSON> was chosen because other
methods called by the Perl core (== not by the user of the object) are
usually in upper case letters and to avoid collisions with any C<to_json>
function or method.
If C<$enable> is false (the default), then C<encode> will not consider
this type of conversion.
This setting has no effect on C<decode>.
=head2 filter_json_object
$json = $json->filter_json_object([$coderef])
When C<$coderef> is specified, it will be called from C<decode> each
time it decodes a JSON object. The only argument is a reference to the
newly-created hash. If the code references returns a single scalar (which
need not be a reference), this value (i.e. a copy of that scalar to avoid
aliasing) is inserted into the deserialised data structure. If it returns
an empty list (NOTE: I<not> C<undef>, which is a valid scalar), the
original deserialised hash will be inserted. This setting can slow down
decoding considerably.
When C<$coderef> is omitted or undefined, any existing callback will
be removed and C<decode> will not change the deserialised hash in any
way.
Example, convert all JSON objects into the integer 5:
my $js = JSON->new->filter_json_object (sub { 5 });
# returns [5]
$js->decode ('[{}]'); # the given subroutine takes a hash reference.
# throw an exception because allow_nonref is not enabled
# so a lone 5 is not allowed.
$js->decode ('{"a":1, "b":2}');
=head2 filter_json_single_key_object
$json = $json->filter_json_single_key_object($key [=> $coderef])
Works remotely similar to C<filter_json_object>, but is only called for
JSON objects having a single key named C<$key>.
This C<$coderef> is called before the one specified via
C<filter_json_object>, if any. It gets passed the single value in the JSON
object. If it returns a single value, it will be inserted into the data
structure. If it returns nothing (not even C<undef> but the empty list),
the callback from C<filter_json_object> will be called next, as if no
single-key callback were specified.
If C<$coderef> is omitted or undefined, the corresponding callback will be
disabled. There can only ever be one callback for a given key.
As this callback gets called less often then the C<filter_json_object>
one, decoding speed will not usually suffer as much. Therefore, single-key
objects make excellent targets to serialise Perl objects into, especially
as single-key JSON objects are as close to the type-tagged value concept
as JSON gets (it's basically an ID/VALUE tuple). Of course, JSON does not
support this in any way, so you need to make sure your data never looks
like a serialised Perl hash.
Typical names for the single object key are C<__class_whatever__>, or
C<$__dollars_are_rarely_used__$> or C<}ugly_brace_placement>, or even
things like C<__class_md5sum(classname)__>, to reduce the risk of clashing
with real hashes.
Example, decode JSON objects of the form C<< { "__widget__" => <id> } >>
into the corresponding C<< $WIDGET{<id>} >> object:
# return whatever is in $WIDGET{5}:
JSON
->new
->filter_json_single_key_object (__widget__ => sub {
$WIDGET{ $_[0] }
})
->decode ('{"__widget__": 5')
# this can be used with a TO_JSON method in some "widget" class
# for serialisation to json:
sub WidgetBase::TO_JSON {
my ($self) = @_;
unless ($self->{id}) {
$self->{id} = ..get..some..id..;
$WIDGET{$self->{id}} = $self;
}
{ __widget__ => $self->{id} }
}
=head2 max_depth
$json = $json->max_depth([$maximum_nesting_depth])
$max_depth = $json->get_max_depth
Sets the maximum nesting level (default C<512>) accepted while encoding
or decoding. If a higher nesting level is detected in JSON text or a Perl
data structure, then the encoder and decoder will stop and croak at that
point.
Nesting level is defined by number of hash- or arrayrefs that the encoder
needs to traverse to reach a given point or the number of C<{> or C<[>
characters without their matching closing parenthesis crossed to reach a
given character in a string.
Setting the maximum depth to one disallows any nesting, so that ensures
that the object is only a single hash/object or array.
If no argument is given, the highest possible setting will be used, which
is rarely useful.
=head2 max_size
$json = $json->max_size([$maximum_string_size])
$max_size = $json->get_max_size
Set the maximum length a JSON text may have (in bytes) where decoding is
kritika.fatpack view on Meta::CPAN
this module provides to RT or GitHub issues for this module:
=over 4
=item https://rt.cpan.org/Public/Dist/Display.html?Queue=JSON
=item https://github.com/makamaka/JSON/issues
=back
Please report bugs and feature requests on decoding/encoding
and boolean behaviors to the author of the backend module you
are using.
=head1 SEE ALSO
L<JSON::XS>, L<Cpanel::JSON::XS>, L<JSON::PP> for backends.
L<JSON::MaybeXS>, an alternative that prefers Cpanel::JSON::XS.
C<RFC4627>(L<http://www.ietf.org/rfc/rfc4627.txt>)
=head1 AUTHOR
Makamaka Hannyaharamitu, E<lt>makamaka[at]cpan.orgE<gt>
JSON::XS was written by Marc Lehmann <schmorp[at]schmorp.de>
The release of this new version owes to the courtesy of Marc Lehmann.
=head1 COPYRIGHT AND LICENSE
Copyright 2005-2013 by Makamaka Hannyaharamitu
This library is free software; you can redistribute it and/or modify
it under the same terms as Perl itself.
=cut
JSON
$fatpacked{"JSON/backportPP.pm"} = '#line '.(1+__LINE__).' "'.__FILE__."\"\n".<<'JSON_BACKPORTPP';
package JSON::PP;use 5.005;use strict;use Exporter ();BEGIN {@JSON::backportPP::ISA=('Exporter')}use overload ();use JSON::backportPP::Boolean;use Carp ();$JSON::backportPP::VERSION='0.05';@JSON::PP::EXPORT=qw(encode_json decode_json from_json to_j...
sub $name {
my \$enable = defined \$_[1] ? \$_[1] : 1;
if (\$enable) {
\$_[0]->{PROPS}->[$property_id] = 1;
}
else {
\$_[0]->{PROPS}->[$property_id] = 0;
}
\$_[0];
}
sub get_$name {
\$_[0]->{PROPS}->[$property_id] ? 1 : '';
}
/}}my$JSON;sub encode_json ($) {($JSON ||= __PACKAGE__->new->utf8)->encode(@_)}sub decode_json {($JSON ||= __PACKAGE__->new->utf8)->decode(@_)}sub to_json($) {Carp::croak ("JSON::PP::to_json has been renamed to encode_json.")}sub from_json(...
[\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]
)$/x)? $is_valid_utf8 : ''}sub decode_error {my$error=shift;my$no_rep=shift;my$str=defined$text ? substr($text,$at): '';my$mess='';my$type='U*';if (OLD_PERL){my$type=$] < 5.006 ? 'C*' : utf8::is_utf8($str)? 'U*' : 'C*' }for my$c (unpack($ty...
sub join {
return '' if (@_ < 2);
my $j = shift;
my $str = shift;
for (@_) { $str .= $j . $_; }
return $str;
}
|}}sub JSON::PP::incr_parse {local$Carp::CarpLevel=1;($_[0]->{_incr_parser}||= JSON::PP::IncrParser->new)->incr_parse(@_)}sub JSON::PP::incr_skip {($_[0]->{_incr_parser}||= JSON::PP::IncrParser->new)->incr_skip}sub JSON::PP::incr_reset ...
sub JSON::PP::incr_text : lvalue {
$_[0]->{_incr_parser} ||= JSON::PP::IncrParser->new;
if ( $_[0]->{_incr_parser}->{incr_pos} ) {
Carp::croak("incr_text cannot be called when the incremental parser already started parsing");
}
$_[0]->{_incr_parser}->{incr_text};
}
} if ($] >= 5.006)}BEGIN {eval 'require Scalar::Util';unless($@){*JSON::PP::blessed=\&Scalar::Util::blessed;*JSON::PP::reftype=\&Scalar::Util::reftype;*JSON::PP::refaddr=\&Scalar::Util::refaddr}else{eval 'sub UNIVERSAL::a_sub_not_likely_to_be_h...
JSON_BACKPORTPP
$fatpacked{"JSON/backportPP/Boolean.pm"} = '#line '.(1+__LINE__).' "'.__FILE__."\"\n".<<'JSON_BACKPORTPP_BOOLEAN';
package JSON::PP::Boolean;use strict;use overload ("0+"=>sub {${$_[0]}},"++"=>sub {$_[0]=${$_[0]}+ 1},"--"=>sub {$_[0]=${$_[0]}- 1},fallback=>1,);$JSON::backportPP::Boolean::VERSION='0.05';1;
JSON_BACKPORTPP_BOOLEAN
$fatpacked{"JSON/backportPP/Compat5005.pm"} = '#line '.(1+__LINE__).' "'.__FILE__."\"\n".<<'JSON_BACKPORTPP_COMPAT5005';
package JSON::backportPP5005;use 5.005;use strict;my@properties;$JSON::PP5005::VERSION='0.05';BEGIN {sub utf8::is_utf8 {0}sub utf8::upgrade {}sub utf8::downgrade {1}sub utf8::encode {}sub utf8::decode {}*JSON::PP::JSON_PP_encode_ascii=\&_encode_asc...
JSON_BACKPORTPP_COMPAT5005
$fatpacked{"JSON/backportPP/Compat5006.pm"} = '#line '.(1+__LINE__).' "'.__FILE__."\"\n".<<'JSON_BACKPORTPP_COMPAT5006';
package JSON::backportPP56;use 5.006;use strict;my@properties;$JSON::PP56::VERSION='0.05';BEGIN {sub utf8::is_utf8 {my$len=length $_[0];{use bytes;return$len!=length $_[0]}}sub utf8::upgrade {}sub utf8::downgrade ($;$) {return 1 unless (utf8::is_ut...
(
[\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){return}}}return$is_utf8}1;
JSON_BACKPORTPP_COMPAT5006
$fatpacked{"Module/Build/Tiny.pm"} = '#line '.(1+__LINE__).' "'.__FILE__."\"\n".<<'MODULE_BUILD_TINY';
package Module::Build::Tiny;$Module::Build::Tiny::VERSION='0.05';use strict;use warnings;use Exporter 5.57 'import';our@EXPORT=qw/Build Build_PL/;use CPAN::Meta;use ExtUtils::Config 0.003;use ExtUtils::Helpers 0.020 qw/make_executable split_like_sh...
MODULE_BUILD_TINY
$fatpacked{"Test/Deep.pm"} = '#line '.(1+__LINE__).' "'.__FILE__."\"\n".<<'TEST_DEEP';
use strict;use warnings;package Test::Deep;use Carp qw(confess);use Test::Deep::Cache;use Test::Deep::Stack;use Test::Deep::RegexpVersion;require overload;use Scalar::Util;my$Test;unless (defined$Test::Deep::NoTest::NoTest){require Test::Builder;$T...
( run in 0.962 second using v1.01-cache-2.11-cpan-6aa56a78535 )