C# Class Playtomic.JSON

This class encodes and decodes JSON strings. Spec. details, see http://www.json.org/ JSON uses Arrays and Objects. These correspond here to the datatypes ArrayList and Hashtable. All numbers are parsed to doubles.

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Protected Properties

Property	Type	Description
lastDecode	string
lastErrorIndex	int

Public Methods

Method	Description
GetLastErrorIndex ( ) : int	On decoding, this function returns the position at which the parse failed (-1 = no error).
GetLastErrorSnippet ( ) : string	If a decoding error occurred, this function returns a piece of the JSON string at which the error took place. To ease debugging.
JsonDecode ( string json ) : object	Parses the string json into a value
JsonEncode ( object json ) : string	Converts a Hashtable / ArrayList object into a JSON string
LastDecodeSuccessful ( ) : bool	On decoding, this function returns the position at which the parse failed (-1 = no error).

Protected Methods

Method	Description
EatWhitespace ( char json, int &index ) : void
GetLastIndexOfNumber ( char json, int index ) : int
IsNumeric ( object o ) : bool	Determines if a given object is numeric in any way (can be integer, double, etc). C# has no pretty way to do this.
LookAhead ( char json, int index ) : int
NextToken ( char json, int &index ) : int
ParseArray ( char json, int &index ) : ArrayList
ParseNumber ( char json, int &index ) : double
ParseObject ( char json, int &index ) : Hashtable
ParseString ( char json, int &index ) : string
ParseValue ( char json, int &index, bool &success ) : object
SerializeArray ( ArrayList anArray, StringBuilder builder ) : bool
SerializeNumber ( double number, StringBuilder builder ) : void
SerializeObject ( Hashtable anObject, StringBuilder builder ) : bool
SerializeObjectOrArray ( object objectOrArray, StringBuilder builder ) : bool
SerializeString ( string aString, StringBuilder builder ) : void
SerializeValue ( object value, StringBuilder builder ) : bool

Method Details

EatWhitespace() protected method

protected EatWhitespace ( char json, int &index ) : void
json	char
index	int
return	void

GetLastErrorIndex() public static method

On decoding, this function returns the position at which the parse failed (-1 = no error).

public static GetLastErrorIndex ( ) : int
return	int

GetLastErrorSnippet() public static method

If a decoding error occurred, this function returns a piece of the JSON string at which the error took place. To ease debugging.

public static GetLastErrorSnippet ( ) : string
return	string

GetLastIndexOfNumber() protected method

protected GetLastIndexOfNumber ( char json, int index ) : int
json	char
index	int
return	int

IsNumeric() protected method

Determines if a given object is numeric in any way (can be integer, double, etc). C# has no pretty way to do this.

protected IsNumeric ( object o ) : bool
o	object
return	bool

JsonDecode() public static method

Parses the string json into a value

public static JsonDecode ( string json ) : object
json	string	A JSON string.
return	object

JsonEncode() public static method

Converts a Hashtable / ArrayList object into a JSON string

public static JsonEncode ( object json ) : string
json	object	A Hashtable / ArrayList
return	string

LastDecodeSuccessful() public static method

On decoding, this function returns the position at which the parse failed (-1 = no error).

public static LastDecodeSuccessful ( ) : bool
return	bool

LookAhead() protected method

protected LookAhead ( char json, int index ) : int
json	char
index	int
return	int

NextToken() protected method

protected NextToken ( char json, int &index ) : int
json	char
index	int
return	int

ParseArray() protected method

protected ParseArray ( char json, int &index ) : ArrayList
json	char
index	int
return	System.Collections.ArrayList

ParseNumber() protected method

protected ParseNumber ( char json, int &index ) : double
json	char
index	int
return	double

ParseObject() protected method

protected ParseObject ( char json, int &index ) : Hashtable
json	char
index	int
return	System.Collections.Hashtable

ParseString() protected method

protected ParseString ( char json, int &index ) : string
json	char
index	int
return	string

ParseValue() protected method

protected ParseValue ( char json, int &index, bool &success ) : object
json	char
index	int
success	bool
return	object

SerializeArray() protected method

protected SerializeArray ( ArrayList anArray, StringBuilder builder ) : bool
anArray	System.Collections.ArrayList
builder	StringBuilder
return	bool

SerializeNumber() protected method

protected SerializeNumber ( double number, StringBuilder builder ) : void
number	double
builder	StringBuilder
return	void

SerializeObject() protected method

protected SerializeObject ( Hashtable anObject, StringBuilder builder ) : bool
anObject	System.Collections.Hashtable
builder	StringBuilder
return	bool

SerializeObjectOrArray() protected method

protected SerializeObjectOrArray ( object objectOrArray, StringBuilder builder ) : bool
objectOrArray	object
builder	StringBuilder
return	bool

SerializeString() protected method

protected SerializeString ( string aString, StringBuilder builder ) : void
aString	string
builder	StringBuilder
return	void

SerializeValue() protected method

protected SerializeValue ( object value, StringBuilder builder ) : bool
value	object
builder	StringBuilder
return	bool

Property Details

lastDecode protected_oe property

protected string lastDecode
return	string

lastErrorIndex protected_oe property

On decoding, this value holds the position at which the parse failed (-1 = no error).

protected int lastErrorIndex
return	int