bhasha-script

Bhasha-Script

Bhasha-Script is a custom LALR compiler and Integrated Development Environment (IDE) designed to let users write programs using Bengali keywords and native Bengali digits. This project was developed as part of the CSE 430 (Compiler Design) coursework.

Key Features

• Native Keyword Support: Use natural language keywords like dhoro (variable), dekhao (print), jodi (if), tahole (then), and nahole (else).
• Unicode Integration: Full support for Bengali digits (০-৯) which are automatically mapped to integers for calculation.
• LALR Parsing: Built using the Python Lex-Yacc (PLY) library to handle complex grammar and operator precedence.
• Smart Highlighting: The built-in editor features real-time syntax highlighting for keywords to improve code readability.
• Localized Error Handling: Provides user-friendly feedback in Bangla (e.g., “Syntax bhul hoyeche!”) when errors occur.

Installation & Setup

1. Clone the repository:

   git clone https://github.com/yourusername/bhasha-script.git
   cd bhasha-script
   

2. Install Dependencies: Ensure you have Python installed, then run:

   pip install -r requirements.txt
   

3. Run the Editor:

   python amar_editor.py
   

Usage Example

Type the following code into the Amar Bangla Editor to see the logic in action:

dhoro x = ১০
dhoro y = ৫
jodi x > y tahole dekhao ১০০ nahole dekhao ০

Expected Output in Console: > 100

Project Structure

• bangla_compiler.py: The core compiler logic containing the Lexer and Parser definitions.
• amar_editor.py: The Tkinter-based GUI providing a user-friendly coding interface.
• requirements.txt: Contains the dependency list (PLY).

Academic Context

This project demonstrates the full front-end pipeline of a compiler:

1. Lexical Analysis: Converting Unicode strings into distinct tokens.
2. Syntax Analysis: Using Context-Free Grammar (CFG) to validate statement structures.
3. Semantic Analysis: Managing a symbol table for variable storage and retrieval during execution.