63e88f80
 Hu Chunming
提交三方库
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//
// Copyright (c) 2019 Vinnie Falco (vinnie.falco@gmail.com)
// Copyright (c) 2020 Krystian Stasiowski (sdkrystian@gmail.com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
// Official repository: https://github.com/boostorg/json
//
#ifndef BOOST_JSON_IMPL_PARSE_IPP
#define BOOST_JSON_IMPL_PARSE_IPP
#include <boost/json/parse.hpp>
#include <boost/json/parser.hpp>
#include <boost/json/detail/except.hpp>
#include <istream>
BOOST_JSON_NS_BEGIN
value
parse(
string_view s,
error_code& ec,
storage_ptr sp,
const parse_options& opt)
{
unsigned char temp[
BOOST_JSON_STACK_BUFFER_SIZE];
parser p(storage_ptr(), opt, temp);
p.reset(std::move(sp));
p.write(s, ec);
if(ec)
return nullptr;
return p.release();
}
value
parse(
string_view s,
std::error_code& ec,
storage_ptr sp,
parse_options const& opt)
{
error_code jec;
value result = parse(s, jec, std::move(sp), opt);
ec = jec;
return result;
}
value
parse(
string_view s,
storage_ptr sp,
const parse_options& opt)
{
error_code ec;
auto jv = parse(
s, ec, std::move(sp), opt);
if(ec)
detail::throw_system_error(ec,
BOOST_CURRENT_LOCATION);
return jv;
}
value
parse(
std::istream& is,
error_code& ec,
storage_ptr sp,
parse_options const& opt)
{
unsigned char parser_buffer[BOOST_JSON_STACK_BUFFER_SIZE / 2];
stream_parser p(storage_ptr(), opt, parser_buffer);
p.reset(std::move(sp));
char read_buffer[BOOST_JSON_STACK_BUFFER_SIZE / 2];
while( true )
{
if( is.rdstate() & std::ios::eofbit )
{
p.finish(ec);
if( ec.failed() )
return nullptr;
break;
}
if( is.rdstate() != std::ios::goodbit )
{
BOOST_JSON_FAIL( ec, error::input_error );
return nullptr;
}
is.read(read_buffer, sizeof(read_buffer));
auto const consumed = is.gcount();
p.write(read_buffer, static_cast<std::size_t>(consumed), ec);
if( ec.failed() )
return nullptr;
}
return p.release();
}
value
parse(
std::istream& is,
std::error_code& ec,
storage_ptr sp,
parse_options const& opt)
{
error_code jec;
value result = parse(is, jec, std::move(sp), opt);
ec = jec;
return result;
}
value
parse(
std::istream& is,
storage_ptr sp,
parse_options const& opt)
{
error_code ec;
auto jv = parse(
is, ec, std::move(sp), opt);
if(ec)
detail::throw_system_error(ec,
BOOST_CURRENT_LOCATION);
return jv;
}
BOOST_JSON_NS_END
#endif
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