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include/cson remove betetr_t from cson() Jul 21, 2014
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LICENSE.txt changed license as per the advise by Amazon Legal team. Feb 26, 2018 added mixed access Jul 20, 2014
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test.cpp added mixed access Jul 20, 2014

C++ Simple Object Notation (CSON)

CSON allows users to create objects with named type-safe attributes on the fly, using notation inspired from JSON:

auto x = cson(name = "Rafi", age = 55, work = "Singing");

std::cout << << "," << x.age << "," << << std::endl;

Here the type of each attribute is statically determined during the creation of object — which means is std::string, x.age is int and so on:

x.age = "I'm a string"; //compilation error :  age is int
x.age++;                //okay         
x.worK = "New job";     //compilation error :  object x has no member named `worK`

That's very intuitive.

###More examples

#include <iostream>
#include <cson/cson.h++>

//creates few labels first

int main()
	//create a cson object with some attributes, even nested cson object
	auto x = cson
		name = "Rafi",
		age = 55,
		items = {1,2,3,4,5},  //this turns into a std::vector<int>
		func = [](std::string const & name)  //can be a functor/function/lambda also
			std::cout << ("Hello " + name)  << std::endl; 
		child = cson   //nested cson object
			name  = 100,                      //now name becomes int
			age   = "here age is string",     //age is std::string now
			items = {"Shaan", "Udit", "Sonu"},//this turns into std::vector<std::string>
			child = cson                      //yet again
				func = "Hi",
				child = "Bye"
	x.func("Lata");  //invoke function
	std::cout << << std::endl; //access child attribute to print it
	std::cout << x << std::endl;  //print the entire object

It is also possibe to treat the attributes as keys, so we can write as:

x[func]("Lata");  //invoke function
std::cout << x[child][name] << std::endl; //access child attribute to print it

And we can even mix them:

std::cout << x.child[name] << std::endl; //access child attribute to print it
std::cout << x[child].name << std::endl; //access child attribute to print it

All mean exactly same thing!


Tested with GCC 4.8.2 with -std=c++11.


Suggestions are most welcome. Feel free to report issues, send pull requests or suggest improvements by sending email at