TapeLangauge

A basic programming language on a tape

This project was inspired by an assignment for the Spring 2018 Programming Languages assignment at Williams College using a trivial language called Breph. The language has been modified here. The language operates very simply with a data array, like a Turing Machine tape, and a simple set of commands:

Command	Action
p	Print whatever the data pointer is over
l	Move the data pointer left one position
r	Move the data pointer right one position
+	Increment the value under data pointer
-	Decrement the value under data pointer
(	If the value at data pointer is zero, then jump to matching ) and execute following command. Otherwise, move to next instruction.
)	If the value at data pointer is nonzero, then jump back to matching ( and execute the following command. Otherwise move to next instruction.
i	Take input and place at data pointer location

Requirements

This requires Python 3 and the argparse package.

Example programs

Some simple examples have been provided in examples/. Notice that the first line is the input for the program to run (what is accessed with the I command) and the rest of the code is on the following line.