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TI-BASIC to Python 3 Transpiler

Project description

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ti842py is a TI-BASIC to Python 3 transpiler. A transpiler is a piece of software that can convert code from one language to another. This program should be able to convert a lot of programs, but if you find something that it can't convert yet, start an issue. This transpiler also has the ability to automatically decompile any 8Xp file that you supply as the input file, with the help of my other project that I contribute to, basically-ti-basic. Note that this software is in beta and may produce inaccurate results.

Features


  • Converts string literals to comments
  • Attempts to interpret implicit multiplication
  • Attempts to fix floating point arithmetic errors
  • Disp/Output()
  • Variable assignment
  • If/Then/Else statements, including Else If
  • ClrHome
  • Input/Prompt
  • For, While, and Repeat loops
  • Pause
  • Wait
  • Stop
  • DelVar
  • getKey
  • Goto/Lbl
  • getDate, getTime, and dayOfWk
  • IS>(/DS<(
  • Menu()
  • toString()
  • randInt()/rand
  • Some drawing functions
  • List subscripting
  • Matrices

Planned Features

  • round()
  • Return
  • eval()/expr()
  • Ans

Known issues

Issues can be found at https://github.com/TabulateJarl8/ti842py/issues

Installation


ti842py can be installed via PyPI or by cloning the repository. To install it with PyPI, just run pip3 install ti842py in a terminal. To install it locally, you can clone the repository and run python setup.py install --user.

Usage


Feel free to use the programs found at https://github.com/TabulateJarl8/tiprograms to test this project out.

CLI Usage

ti842py can be used in 3 different ways. The first way is just running it from the command line. For example, if you wanted to convert the program in tiprogram.txt to tiprogram.py, you can this command: ti842py tiprogram.txt -o tiprogram.py. If no value is specified for -o, the converted program will be written to stdout. The -n flag can be added to force the transpiler to not decompile the input file, and the -d flag can be added to force the transpiler to attempt and decompile the input file. If the --run or -r argument is supplied, the resulting python file will be run after it is done transpiling

usage: ti842py [-h] [-o OUTFILE] [-n] [-d] [--no-fix-multiplication] [--no-fix-floating-point] [--turbo-draw] [-r] [-V] [infile]

TI-BASIC to Python 3 Transpiler

positional arguments:
  infile                Input file (filename or stdin).

optional arguments:
  -h, --help            show this help message and exit
  -o OUTFILE, --out OUTFILE
                        Optional output file to write to. Defaults to standard out.
  -n, --force-normal    Forces the program to not attempt and decompile the input file. Useful for false positives
  -d, --force-decompile
                        Forces the program to attempt to decompile the input file
  --no-fix-multiplication
                        Do not attempt to fix implicit multiplication. For example, AB -> A*B and A(1) -> A*(1)
  --no-fix-floating-point
                        Do not attempt to fix floating point arithmetic errors. For example, 1.1 * 3 would normally say 3.3000000000000003 instead of 3.3
  --turbo-draw          Remove the 0.1 second delay between drawing actions
  -r, --run             Runs the program after it's done transpiling. Will not print to stdout
  -V, --version         show program's version number and exit

Advanced terminal usage

You can use ti842py by piping files to it's stdin. This can be done via pipes or redirects, and the files can be either 8Xp or plain text files, just like normal. Here's some examples:

$ cat BAR.8Xp | ti842py --run
$ ti842py -o bar.py < BAR.8Xp
$ cat CLOCK.bas | ti842py -nr
$ ti842py --no-fix-floating-point --run < CLOCK.bas

Programmatic Usage

ti842py can also be imported and used in a program. Here is an example program to convert tiprogram.txt to tiprogram.py:

from ti842py import transpile

transpile("tiprogram.txt", "tiprogram.py")

Again, if the second argument is not supplied, the program will be written to stdout. The transpile command can be supplied with optional arguments. decompileFile, multiplication, and floating_point default to True, and forceDecompile, run, and turbo_draw default to False

The last way that ti842py can be ran is by running the main python file. After cloning the repository, cd into the repository and run python ti842py/main.py inputfile.txt. You can supply any arguments that you would supply with the ti842py command.

Special functions


  • getKey - The getKey function works just like it does in normal TI-BASIC, except with some special rules. Any key on the keyboard pressed will be converted to the corresponding key on the calculator. This works for letters, numbers, arrow keys, enter, delete, and symbols. As for the buttons not on a keyboard, the top 5 keys are the F1-F5 keys on the keyboard, 2nd is grave `, and alpha is tilda ~. mode is F6, stat is f7, vars is F8, clear is F9, and the X,T,θ,n key is F10.

  • If - If blocks with Then after the If must be ended with End, they cannot be left open. If blocks on 2 lines without a Then cannot be closed with End

Libraries used


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