nlohmann::detail::parser< BasicJsonType > Class Template Reference

syntax analysis More...

Public Types
enum	parse_event_t : uint8_t {   parse_event_t::object_start,   parse_event_t::object_end,   parse_event_t::array_start,   parse_event_t::array_end,   parse_event_t::key,   parse_event_t::value }
using	parser_callback_t = std::function< bool(int depth, parse_event_t event, BasicJsonType &parsed)>

Public Member Functions
	parser (detail::input_adapter_t adapter, const parser_callback_t cb=nullptr, const bool allow_exceptions_=true)
	a parser reading from an input adapter More...
void	parse (const bool strict, BasicJsonType &result)
	public parser interface More...
bool	accept (const bool strict=true)
	public accept interface More...

Detailed Description

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

syntax analysis

This class implements a recursive decent parser.

Member Enumeration Documentation

parse_event_t

template<typename BasicJsonType >

enum nlohmann::detail::parser::parse_event_t : uint8_t

strong

Enumerator
object_start	the parser read { and started to process a JSON object
object_end	the parser read } and finished processing a JSON object
array_start	the parser read [ and started to process a JSON array
array_end	the parser read ] and finished processing a JSON array
key	the parser read a key of a value in an object
value	the parser finished reading a JSON value

Constructor & Destructor Documentation

parser()

template<typename BasicJsonType >

nlohmann::detail::parser< BasicJsonType >::parser ( detail::input_adapter_t  adapter, const parser_callback_t  cb = nullptr, const bool  allow_exceptions_ = true  )

inlineexplicit

a parser reading from an input adapter

Member Function Documentation

parse()

template<typename BasicJsonType >

void nlohmann::detail::parser< BasicJsonType >::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

References nlohmann::detail::discarded.

Referenced by nlohmann::basic_json< ObjectType, ArrayType, StringType, BooleanType, NumberIntegerType, NumberUnsignedType, NumberFloatType, AllocatorType, JSONSerializer >::parse().

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accept()

template<typename BasicJsonType >

bool nlohmann::detail::parser< BasicJsonType >::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

References nlohmann::detail::array, nlohmann::detail::boolean, nlohmann::detail::parse_error::create(), nlohmann::detail::discarded, nlohmann::detail::null, nlohmann::detail::number_float, nlohmann::detail::number_integer, nlohmann::detail::number_unsigned, nlohmann::detail::object, and nlohmann::detail::string.

Referenced by nlohmann::basic_json< ObjectType, ArrayType, StringType, BooleanType, NumberIntegerType, NumberUnsignedType, NumberFloatType, AllocatorType, JSONSerializer >::accept().

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