✨ miniDEL Compiler ✨

Online compiler for the miniDEL language.

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📚 Overview

This repository contains my miniDEL compiler, developed as part of a course project for the Compilation Module at Université des Sciences et de la Technologie Houari Boumediene. The project implements a lexical analyzer (using FLEX), a syntax-semantic analyzer (using BISON), and other essential components of a compiler.

The miniDEL language is specifically designed for learning purposes and offers a minimalistic yet powerful syntax. This repository includes:

• A complete compiler for miniDEL.
• A customizable frontend interface showcasing interactive buttons and loaders.
• A server-side deployment for real-world testing.

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✨ Features of miniDEL

📋 Language Description

• Program Structure:

  PROGRAMME Name
  VAR {
      Variable declarations
  }
  BEGIN
      Code block
  END.
  

• Variable Types:

  • INTEGER: Signed or unsigned integers.
  • FLOAT: Floating-point numbers, signed or unsigned.

• Operators:

  • Arithmetic: +, -, *, /
  • Logical: &&, ||, !
  • Comparison: >, <, >=, <=, ==, !=

• Key Constructs:

  • Loops (FOR, WHILE)
  • Conditions (IF-ELSE)
  • Input/Output (writeln, readln)

⚠️ Semantic Error Examples

PROGRAMME Exem
VAR{
    INTEGER a, b, x;
    FLOAT c;
    CONST pi = 3.14;
    FLOAT F[1.2]; // Invalid value for size
    CONST h = (-5.6);
    INTEGER c; // Duplicate declaration
}
BEGIN
    a = 0;
    b = a + z; // Error: Undeclared variable "z"
    tableau[11] = 10; // Error: Out-of-bounds index
    pi = 3.15; // Error: Assigning to a constant
    c = a / 0; // Error: Division by zero
END.

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💻 Technology Stack

• Frontend:

  • Buttons and loaders created using Uiverse.
  • Code editor powered by the CodeMirror library (simple.js included from their GitHub).

• Backend:

  • Built with Node.js (server.js).
  • Deployed using Render (free tier).

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🚀 How to Try

Visit the miniDEL Online Compiler and paste the following sample code to test the compiler or the previous exemple:

PROGRAMME Exem
VAR{
    INTEGER a, b;
}
BEGIN
    a = 5;
    b = a * 10;
    writeln('hello');
END.

See the results directly in your browser!

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🌈 Feedback and Contributions

I welcome all suggestions and feedback, whether it’s about code optimization, frontend design, or compiler functionality. Feel free to open an issue or submit a pull request!

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✨ Credits

This project was completed as part of the Compilation Module for the 2024/2025 academic year at Université des Sciences et de la Technologie Houari Boumediene.