class of solving json data More...

#include <sttnet_English.h>

Static Public Member Functions
static int	getValue (const std::string &oriStr, std::string &result, const std::string &type="value", const std::string &name="a", const int &num=0)
	Extract the value or nested structure of a specified field in a JSON string. More...

static std::string	toString (const Json::Value &val)
	Convert Json::Value to a string. More...

static Json::Value	toJsonArray (const std::string &str)
	Parse a JSON string into Json::Value. More...

template<class T1 , class T2 >
static std::string	createJson (T1 first, T2 second)
	Create a JSON string containing only one key-value pair. More...

template<class T1 , class T2 , class... Args>
static std::string	createJson (T1 first, T2 second, Args...args)
	Create a JSON string composed of multiple key-value pairs (recursive variadic template). More...

template<class T >
static std::string	createArray (T first)
	Create a JSON array string containing only one element. More...

template<class T , class... Args>
static std::string	createArray (T first, Args...args)
	Create a JSON array string composed of multiple elements (recursive variadic template). More...

static std::string	jsonAdd (const std::string &a, const std::string &b)
	Concatenate two JSON strings into a valid JSON (suitable for object or array concatenation). More...

static std::string &	jsonFormatify (const std::string &a, std::string &b)
	Remove indentation, spaces, etc., from a formatted JSON string to make it compact. More...

static std::string &	jsonToUTF8 (const std::string &input, std::string &output)
	Convert in a JSON string to UTF-8 characters. More...

Detailed Description

class of solving json data

Member Function Documentation

template<class T >

static std::string stt::data::JsonHelper::createArray ( T first )

inlinestatic

Create a JSON array string containing only one element.

Parameters

T	Any type.
first	The first element.

Returns: std::string JSON array string.

template<class T , class... Args>

static std::string stt::data::JsonHelper::createArray	(	T	first,
		Args...	args
	)

inlinestatic

Create a JSON array string composed of multiple elements (recursive variadic template).

Parameters

T	Type of the first element.
Args	Types of the remaining elements.
first	The first element.
args	The remaining elements.

Returns: std::string The concatenated JSON array string.

template<class T1 , class T2 >

static std::string stt::data::JsonHelper::createJson	(	T1	first,
		T2	second
	)

inlinestatic

Create a JSON string containing only one key-value pair.

Parameters

T1	Type of the key, usually std::string.
T2	Type of the value, can be any type acceptable to Json::Value.
first	Key.
second	Value.

Returns: std::string JSON string.

template<class T1 , class T2 , class... Args>

static std::string stt::data::JsonHelper::createJson	(	T1	first,
		T2	second,
		Args...	args
	)

inlinestatic

Create a JSON string composed of multiple key-value pairs (recursive variadic template).

Parameters

T1	Type of the first key.
T2	Type of the first value.
Args	The remaining key-value parameters in pairs.
first	The first key.
second	The first value.
args	The remaining key-value parameters.

Returns: std::string The concatenated JSON string.

static int stt::data::JsonHelper::getValue	(	const std::string &	oriStr,
		std::string &	result,
		const std::string &	type = `"value"`,
		const std::string &	name = `"a"`,
		const int &	num = `0`
	)

static

Extract the value or nested structure of a specified field in a JSON string.

Parameters

oriStr	raw JSON string.
result	stores a string reference to the return value.
type	mode, optional values: value, arrayvalue. They are the values in ordinary JSON objects and the values in array objects.
name	key name in JSON (value only).
num	array index position (starting from 0) (for arrayvalue only).

Returns: -1: Extraction failed 0: Returns a non-JSON object 1: Returns a JSON object

static std::string stt::data::JsonHelper::jsonAdd	(	const std::string &	a,
		const std::string &	b
	)

static

Concatenate two JSON strings into a valid JSON (suitable for object or array concatenation).

Parameters

a	The first JSON string.
b	The second JSON string.

Returns: std::string Concatenated JSON string.

static std::string& stt::data::JsonHelper::jsonFormatify	(	const std::string &	a,
		std::string &	b
	)

static

Remove indentation, spaces, etc., from a formatted JSON string to make it compact.

Parameters

a	Input JSON string.
b	Reference to store the formatted result.

Returns: std::string& Reference to the compact format string.

static std::string& stt::data::JsonHelper::jsonToUTF8	(	const std::string &	input,
		std::string &	output
	)

static

Convert in a JSON string to UTF-8 characters.

Parameters

input	JSON string with Unicode encoding.
output	Reference to store the converted string.

Returns: std::string& Reference to the converted string.

static Json::Value stt::data::JsonHelper::toJsonArray ( const std::string & str )

static

Parse a JSON string into Json::Value.

Parameters

str	Input JSON string.

Returns: Json::Value Parsed JSON object or array.

static std::string stt::data::JsonHelper::toString ( const Json::Value & val )

static

Convert Json::Value to a string.

Parameters

val	JSON value.

Returns: std::string String form of the value.

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

include/sttnet_English.h

Static Public Member Functions

Detailed Description

Member Function Documentation