t-ube/jsoneek

jsoneek is simple JSON library for C++.

jsoneek a C++ JSON library

Overview

jsoneek is simple JSON library for C++.

• Only uses standard C++ libraries
• Parse from text or stream
• Store data in memory
• Creatable new node

Usage

Integration

jsoneek.h is the single required file. You need to add.

#include "jsoneek.h"

Create new JSON

Example

jsoneek*  pRoot = new jsoneek();
jsoneek*  pInfoNode = new jsoneek("Info");

pInfoNode->AddText("Key1", "ABC");
pInfoNode->AddBool("Key2", true);
pInfoNode->AddNull("Key3");
pInfoNode->AddInt("Key4", -1);
pInfoNode->AddDouble("Key5", 150.2);

pRoot->AddNode(pInfoNode);

jsoneekArray*  pArrayItem = new jsoneekArray("Key6");

pArrayItem->AddText("1");
pArrayItem->AddText("2");
pArrayItem->AddInt(3);

pInfoNode->AddNode(pArrayItem->GetNode());

std::cout << pRoot->GetJsonText(CRT_CRLF, true);

delete pRoot;

Result

{
"Info": {
    "Key1": "ABC",
    "Key2": true,
    "Key3": null,
    "Key4": -1,
    "Key5": 150.200000,
    "Key6": ["1","2",3]
    }
}

Methods

new jsoneek() : Create new node.
AddText() : Create new txet value.
AddBool() : Create new boolean value.
AddNull() : Create new null value.
AddInt() : Create new integer value.
AddDouble() : Create new double value.
AddNode() : Connect to child node.

Search & get value

Example

std::cout << "Key:";
std::cout << pRoot->SearchNode("/Info")->GetKey();
std::cout << "\tType:";
std::cout << pRoot->SearchNode("/Info")->GetValueType();
std::cout << "\n";

std::cout << "Key:";
std::cout << pRoot->SearchNode("/Info/Key1")->GetKey();
std::cout << "\tType:";
std::cout << pRoot->SearchNode("/Info/Key1")->GetValueType();
std::cout << "\tValue:";
std::cout << pRoot->SearchNode("/Info/Key1")->GetTextValue();
std::cout << "\n";

std::cout << "Key:";
std::cout << pRoot->SearchNode("/Info/Key2")->GetKey();
std::cout << "\tType:";
std::cout << pRoot->SearchNode("/Info/Key2")->GetValueType();
std::cout << "\tValue:";
std::cout << pRoot->SearchNode("/Info/Key2")->GetBoolValue();
std::cout << "\n";

std::cout << "Key:";
std::cout << pRoot->SearchNode("/Info/Key3")->GetKey();
std::cout << "\tType:";
std::cout << pRoot->SearchNode("/Info/Key3")->GetValueType();
std::cout << "\tValue:";
std::cout << "\n";

std::cout << "Key:";
std::cout << pRoot->SearchNode("/Info/Key4")->GetKey();
std::cout << "\tType:";
std::cout << pRoot->SearchNode("/Info/Key4")->GetValueType();
std::cout << "\tValue:";
std::cout << pRoot->SearchNode("/Info/Key4")->GetIntValue();
std::cout << "\n";

std::cout << "Key:";
std::cout << pRoot->SearchNode("/Info/Key5")->GetKey();
std::cout << "\tType:";
std::cout << pRoot->SearchNode("/Info/Key5")->GetValueType();
std::cout << "\tValue:";
std::cout << pRoot->SearchNode("/Info/Key5")->GetDoubleValue();
std::cout << "\n";

std::cout << "Key:";
std::cout << pRoot->SearchNode("/Info/Key6")->GetKey();
std::cout << "\tType:";
std::cout << pRoot->SearchNode("/Info/Key6")->GetValueType();
std::cout << "\tValue:";

jsoneekArray* pArrayItem = (jsoneekArray*)pRoot->SearchNode("/Info/Key6");
std::vector<jsoneek*> items;
pArrayItem->GetItemNodes(items);

std::cout << "[0]:";
std::cout << items[0]->GetTextValue();
std::cout << "/";
std::cout << "[1]:";
std::cout << items[1]->GetTextValue();
std::cout << "/";
std::cout << "[2]:";
std::cout << items[2]->GetIntValue();
std::cout << "\n";

Result

Key:Info        Type:5
Key:Key1        Type:4  Value:ABC
Key:Key2        Type:2  Value:1
Key:Key3        Type:1  Value:
Key:Key4        Type:3  Value:-1
Key:Key5        Type:3  Value:150.2
Key:Key6        Type:6  Value:[0]:1/[1]:2/[2]:3

Methods

SearchNode() : Search node from root. Get a pointer if a node is found.
GetKey() : Get key from current node.
GetValueType() : Get type of value from current node.
GetTextValue() : Get text of value from current node.
GetBoolValue() : Get boolean value from current node.
GetIntValue() : Get integer value from current node.
GetDoubleValue() : Get double value from current node.
GetItemNodes() : Get multiple possession nodes from the current node.

Type of value

enum VALTYPE {
    VAL_UNKNOWN = 0, // unknown
    VAL_NULL,        // null
    VAL_BOOL,        // boolean
    VAL_NUMBER,      // Number
    VAL_TEXT,        // Text
    VAL_OBJECT,      // Object
    VAL_ARRAY,       // Array
};

Serialize & Deserialize

Example

jsoneek*     pReadTextNode = jsoneek::AnalizeText("{\"Info\": {\"Key1\": \"ABC\"}}");
std::string  text = pReadTextNode->GetJsonText(CRT_CRLF, true);
delete pReadTextNode;

std::cout << text;
std::cout << "\n";

std::ofstream outfile;
outfile.open("c:\\ProgramData\\file.json", std::ios::out);
outfile.write(text.c_str(), text.length());
outfile.close();

std::ifstream infile;
infile.open("c:\\ProgramData\\file.json", std::ios::in);

jsoneek*  pReadFileNode = jsoneek::AnalizeStream(&infile);
std::cout << pReadFileNode->GetJsonText(CRT_CRLF, true);
delete pReadFileNode;

infile.close();

Result

{
"Info": {
    "Key1": "ABC"
    }
}
{
"Info": {
    "Key1": "ABC"
    }
}

Methos

AnalizeText() : Parse from text.
AnalizeStream() : Parse from stream.
GetJsonText() : Output to text.

Version

0.90

License

Licensed under MIT License:

Copyright © 2019 t-ube