Fifth

A simple stack-based language called Fifth

Usage

python fifth.py

Commands

• PUSH <n> - push integer onto stack
• POP - remove top element
• SWAP - swap top two elements
• DUP - duplicate top element
• +, -, *, / - arithmetic operations
• EXIT - quit

Example

stack is: []
PUSH 10
stack is: [10]
PUSH 5
stack is: [10, 5]
+
stack is: [15]
PUSH 45
stack is: [15, 45]
/
stack is: [3]
EXIT

Tests

python -m pytest test_stack_calculator.py

Requirements

• Python 3.10+