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ALPI - Another Lexer Parser Interpreter

This repository contains code, sample programs and the entire documentation regarding the implementation details of our new programming language, ALPI - Another Lexer Parser Interpreter.

Tools used to build ALPI

  • OS: MacOS and Linux
  • Lexer: Python3 using the NLTK package
  • Parser: Prolog
  • Runtime: Prolog

How to install and run ALPI?

  1. Download this repository either directly from GitHub or just use gitclone https://github.com/sudhanvaghebbale/SER502-Spring2020-Team26.git
  2. Go to SER502-Spring2020-Team26/src/runtime
  3. Check the path for Python and swipl by typing: where python and where swipl
  4. Insert these paths in their respective files at the top of the script like: #!/opt/anaconda3/envs/prolog/bin/python and #!/usr/local/bin/swipl
  5. Get current path by typing pwd in the terminal.
  6. Put current path in bash script for Python and swipl
    1. vim ALP
    2. edit this line to python your/path/to/here/SER502-Spring2020-Team26/src/runtime/lexer.py
    3. Same for pl file.
  7. Put the current path for script.txt and tokens.txt to lexer.py and program.pl respectively.
  8. Run chmod +x ALP and ./ALP to execute (Run these two everytime a change is made).

Misc

  1. Install NLTK tokenizer by pip install nltk
  2. Under lexer.py file uncomment the following if you're running the NLTK tokenizer for the first time.
import nltk
nltk.download('punkt')

Youtube Video Link: https://youtu.be/6mHQA34Qi9o