basic_expression_calculator

A simple math parser that handles complex strings like 1 + 2 * 3 / 2 + 5 instead of just one operation at a time.

Features

• Order of Operations: Correctly handles PEMDAS/BODMAS.
• Parentheses: Supports nested logic like (1 + 2) * 3.
• Decimals: Supports 32-bit floating-point numbers (e.g., 10.5 / 2).
• Error Handling: Clearer feedback for syntax mistakes.

How it works

1. Lexer: Breaks your string into tokens (numbers and symbols).
2. Parser: Builds a tree based on math rules.
3. Evaluator: Runs through the tree to give you the answer.

Setup & Usage

1. Clone: git clone https://github.com/GalacticPast/basic_expression_calculator.git
2. Build:

• Linux: ./build.sh
• Windows: ./build.bat

Roadmap / TODO

• Add parentheses support.
• Better error reporting.
• Basic 32-bit float support.
• Fix: Support for very long floats (e.g., 0.22234234123412341243) to prevent overflow.
• New Features: Add ^ (power), % (mod), ! (factorial), and trig functions.
• Visualize: Create a way to see the calculation tree.