NAME

NAME
JSON::Decode::Marpa - JSON parser using Marpa

VERSION
This document describes version 0.02 of JSON::Decode::Marpa (from Perl
distribution JSON-Decode-Marpa), released on 2014-08-27.

SYNOPSIS
use JSON::Decode::Marpa qw(from_json);
my $data = from_json(q([1, true, "a", {"b":null}]));

DESCRIPTION
This module is based on MarpaX::Demo::JSONParser (using "json.2.bnf"),
but offers a more convenient interface for JSON decoding. I packaged
this for casual benchmarking against Pegex::JSON and
JSON::Decode::Regexp.

The result on my computer: Pegex::JSON and JSON::Decode::Marpa are
roughly the same speed (but Pegex has a much smaller startup overhead
than Marpa). JSON::Decode::Regexp is about an order of magnitude faster
than this module, and JSON::XS is about *three orders of magnitude*
faster. So that's that.

This is the benchmark code used:

use 5.010;
use strict;
use warnings;

use Benchmark qw(timethese);
use JSON::Decode::Marpa ();
use JSON::Decode::Regexp ();
use JSON::XS ();
use Pegex::JSON;

my $json = q([1,"abc\ndef",-2.3,null,[],[1,2,3],{},{"a":1,"b":2}]);
my $pgx = Pegex::JSON->new;

timethese -0.5, {
pegex => sub { $pgx->load($json) },
regexp => sub { JSON::Decode::Regexp::from_json($json) },
marpa => sub { JSON::Decode::Marpa::from_json($json) },
xs => sub { JSON::XS::decode_json($json) },
};

FUNCTIONS
from_json($str) => DATA
Decode JSON in $str. Dies on error.

FAQ
SEE ALSO
JSON, JSON::PP, JSON::XS, JSON::Tiny, JSON::Decode::Regexp, Pegex::JSON.

HOMEPAGE
Please visit the project's homepage at
<https://metacpan.org/release/JSON-Decode-Marpa>.

SOURCE
Source repository is at
<https://github.com/perlancar/perl-JSON-Decode-Marpa>.

BUGS
Please report any bugs or feature requests on the bugtracker website
<https://rt.cpan.org/Public/Dist/Display.html?Name=JSON-Decode-Marpa>

When submitting a bug or request, please include a test-file or a patch
to an existing test-file that illustrates the bug or desired feature.

AUTHOR
perlancar <[email protected]>

COPYRIGHT AND LICENSE
This software is copyright (c) 2014 by [email protected].

This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.