jvar::JsonParser Class Reference

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Detailed Description

JsonParser class parses a json string into a Variant structure.

#include <json.h>

Inheritance diagram for jvar::JsonParser:

Collaboration diagram for jvar::JsonParser:

Public Types
enum	{ FLAG_FLEXQUOTES = 0x1, FLAG_OBJECTONLY = 0x2, FLAG_ARRAYONLY = 0x4 }
Public Member Functions
	JsonParser (Variant &outvar, const char *jsontxt, uint flags=0)
bool	eof ()
bool	failed ()
const std::string &	errMsg ()
const char *	c_str ()
const std::string &	token ()
bool	tokenEquals (const char *val)
void	advance ()
void	advance (const char *match)
void	setError (const char *msg)
void	stripQuotes (bool allowsingle)
void	captureDelim (const char *delim)
Protected Member Functions
void	parseObject (Variant &var)
void	parseMembers (Variant &var)
void	parseArray (Variant &var)
void	parseElements (Variant &var)
void	parseValue (Variant &var)
void	parseNum (Variant &var)
void	parseString (Variant &var)
bool	isString (const std::string &s, bool requirequotes)
bool	isArray (const std::string &s)
bool	isObject (const std::string &s)
bool	isNum (const std::string &s)
bool	charWord (char c)
bool	charPunc (char c)
bool	charBrac (char c)
Protected Attributes
uint	mFlags

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Member Enumeration Documentation

anonymous enum

Enumerator:

FLAG_FLEXQUOTES	Allow flexible quotes (single quotes or no quotes in some cases)
FLAG_OBJECTONLY	Start with parsing an object
FLAG_ARRAYONLY	Start with parsing an array

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Constructor & Destructor Documentation

jvar::JsonParser::JsonParser	(	Variant &	outvar,
		const char *	jsontxt,
		uint	flags = 0
	)

Constructor

Parameters:

outvar	Variant which will contain the parsed data structure
jsontxt	Json text to parse
flags	Flags

References jvar::Parser::advance(), jvar::Parser::c_str(), jvar::Parser::eof(), jvar::Parser::errMsg(), jvar::Parser::failed(), FLAG_ARRAYONLY, FLAG_OBJECTONLY, jvar::Parser::setError(), jvar::Parser::token(), and jvar::Parser::tokenEquals().

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Member Function Documentation

void jvar::Parser::advance

(

)

[inline, inherited]

Advances to the next token by parsing it

Referenced by jvar::Parser::advance(), JsonParser(), and jvar::Variant::path().

void jvar::Parser::advance

(

const char *

match

)

[inherited]

Advances if a matching token is found

Parameters:

match

String to match

References jvar::Parser::advance(), jvar::Parser::c_str(), jvar::Parser::setError(), jvar::Parser::token(), and jvar::Parser::tokenEquals().

const char* jvar::Parser::c_str

(

)

[inline, inherited]

Returns the current token

Returns:

Pointer to current token

References jvar::Parser::token().

Referenced by jvar::Parser::advance(), and JsonParser().

bool jvar::Parser::eof

(

)

[inline, inherited]

Is the entire text parsed

Returns:

True if at the end of text has reached

Referenced by JsonParser(), and jvar::Variant::path().

const std::string& jvar::Parser::errMsg

(

)

[inline, inherited]

Returns the error message

Returns:

Reference to the formatted error message string

Referenced by JsonParser().

bool jvar::Parser::failed

(

)

[inline, inherited]

Was there a failure

Returns:

True if there was an error, false otherwise

Referenced by JsonParser(), and jvar::Variant::parseJson().

void jvar::Parser::setError

(

const char *

msg

)

[inherited]

Sets an error message and signal failure

Parameters:

msg	Error text

Referenced by jvar::Parser::advance(), JsonParser(), and jvar::Parser::Parser().

void jvar::Parser::stripQuotes

(

bool

allowsingle

)

[inherited]

Strip quotes from the current token string if found

Parameters:

allowsingle

If true, also allows stripping single quotes

const std::string& jvar::Parser::token

(

)

[inline, inherited]

Returns the current token

Returns:

Reference to current token

Referenced by jvar::Parser::advance(), jvar::Parser::c_str(), JsonParser(), jvar::Variant::path(), and jvar::Parser::tokenEquals().

bool jvar::Parser::tokenEquals

(

const char *

val

)

[inline, inherited]

Compares the current token with a string

Parameters:

val	String to compare

Returns:

True if equal, false otherwise

References jvar::Parser::token().

Referenced by jvar::Parser::advance(), JsonParser(), and jvar::Variant::path().

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

• json.h
• json.cpp