monkey

A C++ version monkey language interpreter. From Write An Interpreter In Go. With additional mark-and-sweep garbage collection.

Usage

You can use the vscode config to build and run the interpreter. Or

> g++ -std=c++11 main.cpp src/*.cpp -o monkey --debug
> ./monkey test.mk
hello world!
minimal prime factor for 1321231 is 487 

return: 
type:  NULL
value: NULL

The test.mk is function to get minimal prime factor.

print("hello world!");

let a = 1321231;

// find mininum factor that is greater than 1
let minFactor = fn (a) {
	let i = 2;
	while(true) {
		if (a % i == 0) { 
			return i;
		}
		let i = i + 1;
	}
}

let f = minFactor(a);

if (f == a) {
	print(a, "is a prime!");
} else {
	print("minimal prime factor for", a, "is", f);
}

And repl.cpp is the REPL(Read-Eval-Print Loop) main function, to only use parser or lexer, you can change to rppl.cpp or rlpl.cpp.

TODOs

• Add garbage collection.
• Add array support.
• Add buildin functions.
• Add dictionary support.
• Add error handling for lexer.