Skip to content
master
Go to file
Code

Latest commit

 

Git stats

Files

Permalink
Failed to load latest commit information.
Type
Name
Latest commit message
Commit time
 
 
 
 
 
 
 
 
 
 
 
 

README.md

jute.svg


Very simple JSON parser for c++



data.json:


{
   "examples": [
      {
         "tag_name": "a",
         "attr": [
            {
               "key": "href",
               "value": "http://amir.saboury.net"
            },
            {
               "key": "target",
               "value": "_blank"
            }
         ]
      },
      {
         "this_is": [
            "array",
            "of",
            "strings"
         ],
         "number_array": [
            1,
            2,
            4,
            8,
            16
         ],
         "pie": 3.14,
         "boolean": true,
         "bug": null,
         "mixed": [
            1,
            2,
            {
               "test1": -1.2345,
               "test2": false
            },
            null,
            0.4,
            [
               "nested",
               [
                  "array",
                  true
               ]
            ],
            "end of story!"
         ]
      },
      {
         "done": true
      }
   ]
}


example "main.cpp" file


#include <iostream>
#include <vector>
#include <map>
#include <string>
#include <sstream>
#include <fstream>
#include <cstring>
#include "jute.h"
using namespace std;

int main () {
    ifstream in("data.json");
    string str = "";
    string tmp;
    while (getline(in, tmp)) str += tmp;
    jute::jValue v = jute::parser::parse(str);
    cout << v.to_string() << endl;
    cout << " ------ " << endl;
    cout << v["examples"][0]["attr"][0]["value"].as_string() << endl;
    if (v["examples"][1]["mixed"][5][1][1].as_bool()) {
        cout << v["examples"][1]["pie"].as_double() << endl;
        cout << v["examples"][2].to_string() << endl;
    }
    // You can get type of a jValue by calling its get_type() function
    // It returns a jType which can be one of these:
    //    {JSTRING, JOBJECT, JARRAY, JBOOLEAN, JNUMBER, JNULL, JUNKNOWN}
    //
    //    if (v["examples"][1]["mixed"][5][1][1].get_type() == jute::JBOOLEAN) ...
    return 0;
}

Note:


This version is not providing error checking. All functions assume the input string is in valid format of JSON. Also number format checking is poor. Improvements are welcome. Read the source code; it is just about 300 LOC 😄

License: MIT

About

Very simple C++ JSON Parser

Resources

Releases

No releases published

Languages

You can’t perform that action at this time.