lunixbochs/pitybas

a faithful TI-BASIC implementation

pitybas

A working TI-BASIC interpreter, written in Python.

Currently, all .bas files in tests/ run except circle.bas (due to lack of graph screen functions)

Use pb.py -i vt100 to run programs which need a working home screen.

If you run pb.py with no filename, it launches an interactive shell.

Usage: pb.py [options] [filename]

Options:
	-h, --help        show this help message and exit
    -a, --ast         parse, print ast, and quit
	-d, --dump        dump variables in stacktrace
	-s, --stacktrace  always stacktrace
	-v, --verbose     verbose output
	-i IO, --io=IO    select an IO system: simple (default), vt100

pitybas's Issues

support non-comma-separated matrix definitions

REPL doesn't interact well with blocks

blocks should be batched when using the repl

add ElseIf token

Graph Screen

There's no way to use the graph screen right now.

circle.bas and some of the tests in #1 require it.

can't assign to matrix using variables for row/col

support single-wide matrix

This is currently broken:

Disp [[1], [2], [3]]

Parsing error with multiple unary minus

Disp -B,-A/B,"" won't apply the second unary minus to -A

In this case, - steals B from the beginning of a tuple, then leave an orphaned - at the start of the tuple.

stacktrace doesn't follow pgrm calls

handle Decimal type in isinstance checks, for example list.get/set()

verify behavior of goto through End tokens

support list * int

probably matrix * list, matrix * int, and list * list too

Additional failing tests

There are 5 additional tibasic files available here https://github.com/dbieber/ti83
None of them work with pitybas yet.

file IO API