Detailed Description

The interface used to handle tokens during JSON parsing.

As the JsonLexer traverses the input string, it calls the methods below.

Inheritance diagram for ola::web::JsonParserInterface:

Public Member Functions
virtual void	Begin ()=0
	Called when parsing begins.
virtual void	End ()=0
	Called when parsing completes.
virtual void	String (const std::string &value)=0
	Called when a string is encounted.
virtual void	Number (uint32_t value)=0
	Called when a uint32_t is encounted.
virtual void	Number (int32_t value)=0
	Called when a int32_t is encounted.
virtual void	Number (uint64_t value)=0
	Called when a uint64_t is encounted.
virtual void	Number (int64_t value)=0
	Called when a int64_t is encounted.
virtual void	Number (const JsonDouble::DoubleRepresentation &rep)=0
	Called when a double value is encounted.
virtual void	Number (double d)=0
	Called when a double value is encounted.
virtual void	Bool (bool value)=0
	Called when a bool is encounted.
virtual void	Null ()=0
	Called when a null token is encounted.
virtual void	OpenArray ()=0
	Called when an array starts.
virtual void	CloseArray ()=0
	Called when an array completes.
virtual void	OpenObject ()=0
	Called when an object starts.
virtual void	ObjectKey (const std::string &key)=0
	Called when a new key is encounted.
virtual void	CloseObject ()=0
	Called when an object completes.
virtual void	SetError (const std::string &error)=0
	Can be called at any time to indicate an error with the input data.

Member Function Documentation

virtual void ola::web::JsonParserInterface::Number ( const JsonDouble::DoubleRepresentation & rep )

pure virtual

Called when a double value is encounted.

MinGW struggles with long doubles http://mingw.5.n7.nabble.com/Strange-behaviour-of-gcc-4-8-1-with-long-double-td32949.html To avoid this, and to keep as many significant bits as possible we keep the components of a double separate. See JsonDouble for details.

virtual void ola::web::JsonParserInterface::ObjectKey ( const std::string & key )

pure virtual

Called when a new key is encounted.

This may be called multiple times for the same object. The standard doesn't specify how to handle duplicate keys, so I generally use the last one.

virtual void ola::web::JsonParserInterface::String ( const std::string & value )

pure virtual

Called when a string is encounted.

This is not called for object keys, see ObjectKey() below.

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