Monk Programming Language

This project is a result of learning the innards of compilers. Among other compiler books that I learned from, this was the most influential, especially in making this project: Writing an Interpreter In Go.

Using

To use the monkey interpreter, simply run go run main.go in the project directory.To get an executable, run go build in the project directory.

Features

Variables:

let x = 5;

Return Statements:

return 5; 
return false;

Expressions:

if (x < y) { x }

if (x > y) { y } else { x }

Functions:

fn(x, y) { x + y; }

String Literals:

"Hello World"

Built-in Functions:

• len(): Returns the number of characters in a string.

len("Dexter's Laboratory");
19

• puts(): Prints the given arguments to STDOUT. It return a null. It only cares about printing not returning a value.

puts("Sugar, spice, and everything nice!");
Sugar, spice, and everything nice!

Error Handling:

The monkey programming language also responds accordingly to errors: