Custom Programming Language

View demo & docs here

A simple programming language built from scratch in Python.
Includes full lexer (tokenizer), parser, and interpreter (no real-world senario, just educational) This version supports basic features like:

• Variable declarations (with int and string types)
• Printing output using say()
• Comment support (# for single-line comments)
• Debug Mode to see tokenizing and parsing happen in real time

---

Example Code

# Print
say("Hello, world!")

# Define a string
myname = string("Alex")

# Define an integer
mynumber = int(42)

# Output the values
say(myname)
say(mynumber)

---

How to Run

1. have Python 3.x installed
2. clone the repository
3. add your code to a .txt file
4. run the python file and add your source code's path as an argument

   python run.py sourcecode.txt

---

Features

• Integer & string variables
• Print with say()
• Comments (#)
• Tokenizer and AST
• Error handling (improved)
• Expressions / math
• Control flow (if, while, etc.)

---

Planned for Future Versions

• Arithmetic operations (+, -, etc.)
• Conditionals (if, else)
• Loops (while, for)
• Functions
• Type checking
• Custom runtime errors

---

Why?

This is a learning project to understand how programming languages work (tokenizing, parsing, interpreting)

---

View demo & docs here