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Calc-It

A toy compiler (lexer-parser) written in python viz RPLY and LLVMLite to calculate simple mathematical expressions.

To do:

  • Code Lexer. ✔
  • Code Parser. ✔
  • Code AST. ✔
  • Use LLVMLite for optimisation and conversion to machine code.

Installation

Follow the steps to run the web-app on your local machine:

  1. Clone the repository

    git clone https://github.com/chumba-wamba/Calc-It.git

  2. Install the Dependencies

    cd Calc-It
pip install -r requirements.txt

Usage

  1. Enter the cloned repository

    cd Calc-It

  2. Edit the input string in run.py

    from calc_it.lexer import lexer
from calc_it.parser import parser


if __name__ == "__main__":
   input_string = "1+5**(2*3)"
   tokens = lexer.lex(input_string)
   print(parser.parse(tokens).eval())

  3. Execute the program

     python run.py

    Test