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Lox is a little programming language created byBob Nystrom in his bookCrafting Interpreters. This is my attempt at recreating it in C#. I've published a web based version of the interpreterhere.

The interprer is still a work in progress as I've not finished the book yet.

Lox is a dynamically typed language, variables can have values of four types:nil,number (64-bit floating point numbers),boolean andstring.

var x=5.8;var y;y=10;var z= x* y;var i=true;print(i);print(z);

var x=250;if (x%2==0){print("Even");}else{print("Odd");}

var x=0;while(x<10){if (x>5)break;print(x);    x= x+1;}

for (var i=0; i<10; i= i+1){print("i is:"+ i);}

Functions can return something:

funcoolify(thing){return"cool"+ thing;}print(coolify("app"));

Or return nothing:

fundoSomething() {print("Doing something...");}doSomething();

There are only two functions in the standard library:

pPrints the value to stdout:

print("Hello World!");print(42);print(true);

Returns the number of seconds since 0001-01-01:

print(clock());