detail::parser< BasicJsonType, InputAdapterType > Class Template Reference

syntax analysis More...

#include <json.hpp>

Public Member Functions
	parser (InputAdapterType &&adapter, parser_callback_t< BasicJsonType > cb=nullptr, const bool allow_exceptions_=true, const bool skip_comments=false)
	a parser reading from an input adapter
void	parse (const bool strict, BasicJsonType &result)
	public parser interface
bool	accept (const bool strict=true)
	public accept interface
template<typename SAX>
bool	sax_parse (SAX *sax, const bool strict=true)

Private Types
using	number_integer_t = typename BasicJsonType::number_integer_t
using	number_unsigned_t = typename BasicJsonType::number_unsigned_t
using	number_float_t = typename BasicJsonType::number_float_t
using	string_t = typename BasicJsonType::string_t
using	lexer_t = lexer<BasicJsonType, InputAdapterType>
using	token_type = typename lexer_t::token_type

Private Member Functions
template<typename SAX>
bool	sax_parse_internal (SAX *sax)
token_type	get_token ()
	get next token from lexer
std::string	exception_message (const token_type expected, const std::string &context)

Private Attributes
const parser_callback_t< BasicJsonType >	callback = nullptr
	callback function
token_type	last_token = token_type::uninitialized
	the type of the last read token
lexer_t	m_lexer
	the lexer
const bool	allow_exceptions = true
	whether to throw exceptions in case of errors

Detailed Description

template<typename BasicJsonType, typename InputAdapterType>
class detail::parser< BasicJsonType, InputAdapterType >

syntax analysis

This class implements a recursive descent parser.

Member Typedef Documentation

lexer_t

template<typename BasicJsonType, typename InputAdapterType>

using detail::parser< BasicJsonType, InputAdapterType >::lexer_t = lexer<BasicJsonType, InputAdapterType>

private

number_float_t

template<typename BasicJsonType, typename InputAdapterType>

using detail::parser< BasicJsonType, InputAdapterType >::number_float_t = typename BasicJsonType::number_float_t

private

number_integer_t

template<typename BasicJsonType, typename InputAdapterType>

using detail::parser< BasicJsonType, InputAdapterType >::number_integer_t = typename BasicJsonType::number_integer_t

private

number_unsigned_t

template<typename BasicJsonType, typename InputAdapterType>

using detail::parser< BasicJsonType, InputAdapterType >::number_unsigned_t = typename BasicJsonType::number_unsigned_t

private

string_t

template<typename BasicJsonType, typename InputAdapterType>

using detail::parser< BasicJsonType, InputAdapterType >::string_t = typename BasicJsonType::string_t

private

token_type

template<typename BasicJsonType, typename InputAdapterType>

using detail::parser< BasicJsonType, InputAdapterType >::token_type = typename lexer_t::token_type

private

Constructor & Destructor Documentation

parser()

template<typename BasicJsonType, typename InputAdapterType>

detail::parser< BasicJsonType, InputAdapterType >::parser ( InputAdapterType && adapter, parser_callback_t< BasicJsonType > cb = nullptr, const bool allow_exceptions_ = true, const bool skip_comments = false )

inlineexplicit

a parser reading from an input adapter

Member Function Documentation

accept()

template<typename BasicJsonType, typename InputAdapterType>

bool detail::parser< BasicJsonType, InputAdapterType >::accept ( const bool strict = true )

inline

public accept interface

Parameters

[in]

strict

whether to expect the last token to be EOF

Returns

whether the input is a proper JSON text

exception_message()

template<typename BasicJsonType, typename InputAdapterType>

std::string detail::parser< BasicJsonType, InputAdapterType >::exception_message ( const token_type expected, const std::string & context )

inlineprivate

get_token()

template<typename BasicJsonType, typename InputAdapterType>

token_type detail::parser< BasicJsonType, InputAdapterType >::get_token ( )

inlineprivate

get next token from lexer

parse()

template<typename BasicJsonType, typename InputAdapterType>

void detail::parser< BasicJsonType, InputAdapterType >::parse ( const bool strict, BasicJsonType & result )

inline

public parser interface

Parameters

[in]	strict	whether to expect the last token to be EOF
[in,out]	result	parsed JSON value

Exceptions

parse_error.101	in case of an unexpected token
parse_error.102	if to_unicode fails or surrogate error
parse_error.103	if to_unicode fails

sax_parse()

template<typename BasicJsonType, typename InputAdapterType>

template<typename SAX>

bool detail::parser< BasicJsonType, InputAdapterType >::sax_parse ( SAX * sax, const bool strict = true )

inline

sax_parse_internal()

template<typename BasicJsonType, typename InputAdapterType>

template<typename SAX>

bool detail::parser< BasicJsonType, InputAdapterType >::sax_parse_internal ( SAX * sax )

inlineprivate

Member Data Documentation

allow_exceptions

template<typename BasicJsonType, typename InputAdapterType>

const bool detail::parser< BasicJsonType, InputAdapterType >::allow_exceptions = true

private

whether to throw exceptions in case of errors

callback

template<typename BasicJsonType, typename InputAdapterType>

const parser_callback_t<BasicJsonType> detail::parser< BasicJsonType, InputAdapterType >::callback = nullptr

private

callback function

last_token

template<typename BasicJsonType, typename InputAdapterType>

token_type detail::parser< BasicJsonType, InputAdapterType >::last_token = token_type::uninitialized

private

the type of the last read token

m_lexer

template<typename BasicJsonType, typename InputAdapterType>

lexer_t detail::parser< BasicJsonType, InputAdapterType >::m_lexer

private

the lexer

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The documentation for this class was generated from the following file:

• includes/nlohmann/json.hpp