Detailed Description

Parse a JSON Patch document (RFC 6902).

Inheritance diagram for ola::web::JsonPatchParser:

Public Member Functions
	JsonPatchParser (JsonPatchSet *patch_set)
void	Begin ()
	Called when parsing begins.
void	End ()
	Called when parsing completes.
void	String (const std::string &value)
	Called when a string is encounted.
void	Number (uint32_t value)
	Called when a uint32_t is encounted.
void	Number (int32_t value)
	Called when a int32_t is encounted.
void	Number (uint64_t value)
	Called when a uint64_t is encounted.
void	Number (int64_t value)
	Called when a int64_t is encounted.
void	Number (const JsonDouble::DoubleRepresentation &rep)
	Called when a double value is encounted.
void	Number (double value)
	Called when a double value is encounted.
void	Bool (bool value)
	Called when a bool is encounted.
void	Null ()
	Called when a null token is encounted.
void	OpenArray ()
	Called when an array starts.
void	CloseArray ()
	Called when an array completes.
void	OpenObject ()
	Called when an object starts.
void	ObjectKey (const std::string &key)
	Called when a new key is encounted.
void	CloseObject ()
	Called when an object completes.
void	SetError (const std::string &error)
	Can be called at any time to indicate an error with the input data.
std::string	GetError () const
	Check if parsing was successful.
bool	IsValid () const
	Check if this patch document was valid.

Static Public Member Functions
static bool	Parse (const std::string &input, JsonPatchSet patch_set, std::string error)
	Build a JsonPatchSet from a JSON document.

Member Function Documentation

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

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.

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

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.