Scheme-Python Transformer

Overview

This is a Python-Based project designed to dynamically transform Python scripts containing racket_insert calls. These calls are placeholders that reference a Scheme-Like code. The transformer parses the Python code, replaces racket_insert calls with their corresponding Python Abstract Syntax Tree (AST) equivalents derived from the Scheme-Like code, and executes the transformed Python script seamlessly.

Requirements

• Python 3.8+
• Dependencies:
  • astunparse (for converting AST back to Python code)

Installation

1. Clone the Repository

    git clone <project-url>
    cd code

2. Activate Virtual Environment

   python -m venv venv
   source venv/bin/activate  # On Windows: venv\Scripts\activate
   

3. Install Dependencies

   pip install astunparse

Usage

Prepare Your Racket Code

• Ensure that you have a Racket script ready for insertion into your Python code. This script should contain functions or expressions that are meant to be evaluated within the Python environment.

Example: Create the racket_insert.rkt :

(proc (a b c x) (+ (* a (* x x)) ( + (* b x) c)))

Prepare Your Python Script with racket_insert Calls

Your Python script should contain racket_insert("<file_name>.rkt") calls at locations where you want to insert Racket code.

Example: Create the file input_script.py

funcc = racket_insert("racket_insert.rkt")
scale_factor = 2  
shift_value = 3 

def transformed_quadratic(a, b, c, x):
    global funcc
    global shift_value
    return 100 * funcc(a, b, c, x) + shift_value

x_val = 4
result = transformed_quadratic(1, 2, 3, x_val)   
print(result)  

To run the transformer, use the following command:

python main.py input_script.py

Replace input_script.py with the path to your Python script containing racket_insert calls.

The transformer will parse your Python script, substitute racket_insert calls with the corresponding Python representations of the Racket code, and execute the transformed script. You should see the output from your print statements in the console.