syntax analysis More...

#include <json.hpp>

Collaboration diagram for nlohmann::detail::parser< BasicJsonType, InputAdapterType >:

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

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

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

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

Detailed Description

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

syntax analysis

This class implements a recursive descent parser.

Definition at line 10759 of file json.hpp.

Member Typedef Documentation

◆ lexer_t

template<typename BasicJsonType, typename InputAdapterType>

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

private

Definition at line 10765 of file json.hpp.

◆ number_float_t

template<typename BasicJsonType, typename InputAdapterType>

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

private

Definition at line 10763 of file json.hpp.

◆ number_integer_t

template<typename BasicJsonType, typename InputAdapterType>

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

private

Definition at line 10761 of file json.hpp.

◆ number_unsigned_t

template<typename BasicJsonType, typename InputAdapterType>

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

private

Definition at line 10762 of file json.hpp.

◆ string_t

template<typename BasicJsonType, typename InputAdapterType>

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

private

Definition at line 10764 of file json.hpp.

◆ token_type

template<typename BasicJsonType, typename InputAdapterType>

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

private

Definition at line 10766 of file json.hpp.

Constructor & Destructor Documentation

◆ parser()

template<typename BasicJsonType, typename InputAdapterType>

*a parser reading from an input adapter nlohmann::detail::parser< BasicJsonType, InputAdapterType >::parser	(	InputAdapterType &&	adapter,
		const parser_callback_t< BasicJsonType >	cb = nullptr,
		const bool	allow_exceptions_ = true,
		const bool	skip_comments = false )

inlineexplicit

Definition at line 10770 of file json.hpp.

References allow_exceptions, callback, get_token(), and m_lexer.

Member Function Documentation

◆ accept()

template<typename BasicJsonType, typename InputAdapterType>

bool nlohmann::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

Definition at line 10852 of file json.hpp.

References sax_parse(), and nlohmann::detail::strict.

◆ exception_message()

template<typename BasicJsonType, typename InputAdapterType>

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

inlineprivate

Definition at line 11165 of file json.hpp.

References last_token, m_lexer, and nlohmann::detail::lexer_base< BasicJsonType >::token_type_name().

Referenced by parse(), sax_parse(), and sax_parse_internal().

Here is the caller graph for this function:

◆ get_token()

template<typename BasicJsonType, typename InputAdapterType>

*get next token from lexer token_type nlohmann::detail::parser< BasicJsonType, InputAdapterType >::get_token ( )

inlineprivate

Definition at line 11160 of file json.hpp.

References last_token, and m_lexer.

Referenced by parse(), parser(), sax_parse(), and sax_parse_internal().

Here is the caller graph for this function:

◆ parse()

template<typename BasicJsonType, typename InputAdapterType>

void nlohmann::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

Definition at line 10792 of file json.hpp.

References allow_exceptions, nlohmann::BasicJsonType(), callback, nlohmann::detail::parse_error::create(), nlohmann::detail::discarded, exception_message(), get_token(), nlohmann::detail::json_sax_dom_callback_parser< BasicJsonType >::is_errored(), nlohmann::detail::json_sax_dom_parser< BasicJsonType >::is_errored(), m_lexer, nlohmann::detail::json_sax_dom_callback_parser< BasicJsonType >::parse_error(), nlohmann::detail::json_sax_dom_parser< BasicJsonType >::parse_error(), nlohmann::result, sax_parse_internal(), and nlohmann::detail::strict.

◆ sax_parse()

template<typename BasicJsonType, typename InputAdapterType>

template<typename SAX>

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

inline

Definition at line 10860 of file json.hpp.

References nlohmann::BasicJsonType(), nlohmann::detail::parse_error::create(), exception_message(), get_token(), m_lexer, nlohmann::result, sax_parse(), sax_parse_internal(), and nlohmann::detail::strict.

Referenced by accept(), and sax_parse().

Here is the caller graph for this function:

◆ sax_parse_internal()

template<typename BasicJsonType, typename InputAdapterType>

template<typename SAX>

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

inlineprivate

Definition at line 10879 of file json.hpp.

References nlohmann::BasicJsonType(), nlohmann::detail::out_of_range::create(), nlohmann::detail::parse_error::create(), exception_message(), get_token(), JSON_ASSERT, JSON_HEDLEY_LIKELY, JSON_HEDLEY_UNLIKELY, last_token, m_lexer, nlohmann::res, and sax_parse_internal().

Referenced by parse(), sax_parse(), and sax_parse_internal().

Here is the caller graph for this function:

Field Documentation

◆ allow_exceptions

template<typename BasicJsonType, typename InputAdapterType>

* whether to throw exceptions in case of errors const bool nlohmann::detail::parser< BasicJsonType, InputAdapterType >::allow_exceptions = true

private

Definition at line 11202 of file json.hpp.

Referenced by parse(), and parser().

◆ callback

template<typename BasicJsonType, typename InputAdapterType>

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

private

Definition at line 11196 of file json.hpp.

Referenced by parse(), and parser().

◆ last_token

template<typename BasicJsonType, typename InputAdapterType>

* the type of the last read token token_type nlohmann::detail::parser< BasicJsonType, InputAdapterType >::last_token = token_type::uninitialized

private

Definition at line 11198 of file json.hpp.

Referenced by exception_message(), get_token(), and sax_parse_internal().

◆ m_lexer

template<typename BasicJsonType, typename InputAdapterType>

* the lexer lexer_t nlohmann::detail::parser< BasicJsonType, InputAdapterType >::m_lexer

private

Definition at line 11200 of file json.hpp.

Referenced by exception_message(), get_token(), parse(), parser(), sax_parse(), and sax_parse_internal().

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

json.hpp

Public Member Functions

Private Types

Private Member Functions

Private Attributes

Detailed Description

Member Typedef Documentation

◆ lexer_t

◆ number_float_t

◆ number_integer_t

◆ number_unsigned_t

◆ string_t

◆ token_type

Constructor & Destructor Documentation

◆ parser()

Member Function Documentation

◆ accept()

◆ exception_message()

◆ get_token()

◆ parse()

◆ sax_parse()

◆ sax_parse_internal()

Field Documentation

◆ allow_exceptions

◆ callback

◆ last_token

◆ m_lexer