APIs¶

lightjson.h¶

The head file of LightJSON.

Author: Shenggan

namespace ljson¶

Typedefs

typedef struct ljson_value ljson_value¶

typedef struct ljson_member ljson_member¶

Enums

enum ljson_type¶

the basic type of the json struct

Values:

LJSON_NULL¶

LJSON_FALSE¶

LJSON_TRUE¶

LJSON_NUMBER¶

LJSON_STRING¶

LJSON_ARRAY¶

LJSON_OBJECT¶

enum ljson_state¶

the type of the results or error

Values:

LJSON_PARSE_OK = 0¶

LJSON_STRINGIFY_OK¶

LJSON_PARSE_EXPECT_VALUE¶

LJSON_PARSE_INVALID_VALUE¶

LJSON_PARSE_ROOT_NOT_SINGULAR¶

LJSON_PARSE_NUMBER_TOO_BIG¶

LJSON_PARSE_MISS_QUOTATION_MARK¶

LJSON_PARSE_INVALID_STRING_ESCAPE¶

LJSON_PARSE_INVALID_STRING_CHAR¶

LJSON_PARSE_INVALID_UNICODE_HEX¶

LJSON_PARSE_INVALID_UNICODE_SURROGATE¶

LJSON_PARSE_MISS_COMMA_OR_SQUARE_BRACKET¶

LJSON_PARSE_MISS_KEY¶

LJSON_PARSE_MISS_COLON¶

LJSON_PARSE_MISS_COMMA_OR_CURLY_BRACKET¶

Functions

void ljson_free(ljson_value *v)¶

free the memory of a ljson_value, use it if you will not use it or initailize it again

Parameters

v: the pointer of ljson_value you want to free

void ljson_init(ljson_value *v)¶

initailize a ljson_value, use it after declaration

Parameters

v: the pointer of ljson_value you want to initailize

void setNull(ljson_value *v)¶: the same as ljson_free(ljson_value* v)

void setNull(ljson_value &v)¶

int ljson_parse(ljson_value *v, const char *json)¶

parse a string to get the ljson_value

Return

ljson_state

Parameters

v: the pointer of ljson_value you want to store the result of parse
json: the string you want to parse

int ljson_parse(ljson_value *v, const std::string &json)¶

parse a string to get the ljson_value

Return

ljson_state

Parameters

v: the pointer of ljson_value you want to store the result of parse
json: the string you want to parse

int ljson_stringify(const ljson_value *v, std::string &json)¶

ljson_value v to get the string os the json

Return

ljson_state

Parameters

v: the pointer of ljson_value you want to stringify
json: the string you want to store the result

int ljson_stringify(const ljson_value *v, char *json)¶

ljson_value v to get the string os the json

Return

ljson_state

Parameters

v: the pointer of ljson_value you want to stringify
json: the string you want to store the result

ljson_type getType(const ljson_value *v)¶

ljson_type getType(const ljson_value &v)¶

void setNumber(ljson_value *v, double n)¶

void setNumber(ljson_value &v, double n)¶

double getNumber(const ljson_value *v)¶

double getNumber(const ljson_value &v)¶

void setBool(ljson_value *v, ljson_type b)¶

void setBool(ljson_value *v, bool b)¶

bool getBool(const ljson_value *v)¶

void setBool(ljson_value &v, ljson_type b)¶

void setBool(ljson_value &v, bool b)¶

bool getBool(const ljson_value &v)¶

void setString(ljson_value *v, const char *s, size_t len)¶

void setString(ljson_value *v, const std::string &s)¶

std::string &getString(const ljson_value *v)¶

size_t getStringLength(const ljson_value *v)¶

void setString(ljson_value &v, const char *s, size_t len)¶

void setString(ljson_value &v, const std::string &s)¶

std::string &getString(const ljson_value &v)¶

size_t getStringLength(const ljson_value &v)¶

void setArray(ljson_value *v, const std::vector<ljson_value> &vec, bool deep_copy = 1)¶

std::vector<ljson_value> &getArray(const ljson_value *v)¶

ljson_value &getArrayElement(const ljson_value *v, const size_t index)¶

void setArrayElement(ljson_value *v, const size_t index, const ljson_value &content)¶

size_t getArraySize(const ljson_value *v)¶

void setArray(ljson_value &v, const std::vector<ljson_value> &vec, bool deep_copy = 1)¶

std::vector<ljson_value> &getArray(const ljson_value &v)¶

ljson_value &getArrayElement(const ljson_value &v, const size_t index)¶

void setArrayElement(ljson_value &v, const size_t index, const ljson_value &content)¶

size_t getArraySize(const ljson_value &v)¶

void setObject(ljson_value *v, const std::map<std::string, ljson_value> &vec, bool deep_copy = 1)¶

bool objectFindKey(const ljson_value *v, const std::string &mkey)¶

bool objectFindKey(const ljson_value &v, const std::string &mkey)¶

std::map<std::string, ljson_value> &getObject(const ljson_value *v)¶

ljson_value &getObjElement(const ljson_value *v, const std::string &key)¶

void setObjElement(ljson_value *v, const std::string key, const ljson_value &content)¶

size_t getObjectSize(const ljson_value *v)¶

ljson_value &objectAccess(ljson_value *v, const std::string &mkey)¶

void setObject(ljson_value &v, const std::map<std::string, ljson_value> &vec, bool deep_copy = 1)¶

ljson_value &getObjElement(const ljson_value &v, const std::string key)¶

void setObjElement(ljson_value &v, const std::string key, const ljson_value &content)¶

size_t getObjectSize(const ljson_value &v)¶

ljson_value &objectAccess(ljson_value &v, const std::string &mkey)¶

void ljson_reset(ljson_value *v_old, const ljson_value &v_new)¶

void ljson_reset(ljson_value *v_old, const ljson_value *v_new)¶

static int ljson_parse_value(ljson_context *c, ljson_value *v)¶

void expect_char(ljson_context *c, char ch)¶

bool isdigit1to9(char ch)¶

static void ljson_parse_whitespace(ljson_context *c)¶

static int ljson_parse_literal(ljson_context *c, ljson_value *v, const char *literal, ljson_type type)¶

static int ljson_parse_number(ljson_context *c, ljson_value *v)¶

static const char *ljson_parse_hex4(const char *p, unsigned *u)¶

static void ljson_encode_utf8(std::string &s, unsigned u)¶

static int ljson_parse_string_raw(ljson_context *c, std::string &cache_string)¶

static int ljson_parse_string(ljson_context *c, ljson_value *v)¶

static int ljson_parse_array(ljson_context *c, ljson_value *v)¶

static int ljson_parse_object(ljson_context *c, ljson_value *v)¶

static void ljson_stringify_string(std::string &str, const std::string &json_str)¶

static int ljson_stringify_value(const ljson_value *v, std::string &str)¶

std::map<std::string, ljson_value> &getObject(const ljson_value &v)¶

class Document¶

#include <lightjson.h>

Inherits from ljson::Value

Public Functions

Document()¶

~Document()¶

int Parse(std::string &json)¶

struct ljson_context¶

#include <lightjson.h>

Public Members

const char *json¶

struct ljson_member¶

#include <lightjson.h>

the struct of the member of json object

Public Members

std::string key¶

ljson_value value¶

struct ljson_object¶

#include <lightjson.h>

the struct of the json object

Public Members

char *name¶

ljson_value value¶

struct ljson_value¶

#include <lightjson.h>

the inner struct of a json, can present all kind of ljson_type

Public Functions

void free()¶

void copyfrom(const ljson_value &copy)¶

Public Members

union ljson::ljson_value::__data data¶: data part of ljson_value

ljson_type type¶: typr of this ljson_value

union __data¶

#include <lightjson.h>

Public Members

std::map<std::string, ljson_value> *mobject¶: object

std::string *mstring¶: string

std::vector<ljson_value> *marray¶: array

double mdouble¶: number

class Value¶

#include <lightjson.h>

Subclassed by ljson::Document

Public Functions

Value()¶

Value(ljson_value *v)¶

~Value()¶

Value operator[](const std::string key) const¶

Value operator[](const size_t index) const¶

ljson_value *GetValue() const¶

void SetValue(const Value &content)¶

void SetNumber(const double a_num)¶

double GetNumber() const¶

void SetBool(const bool a_bool)¶

bool GetBool() const¶

void SetString(const std::string &a_str)¶

std::string &GetString() const¶

void SetArrayElement(const size_t index, const Value &content)¶

Value GetArrayElement(const size_t index) const¶

void SetObjectElement(const std::string &key, const Value &content)¶

Value GetObjElement(const std::string &key) const¶

std::string cpp_str() const¶

Protected Attributes

ljson_value *mvalue¶

Friends

std::ostream &operator<<(std::ostream &out, const Value &v)¶