A formula parser written identically in multiple languages.

FXE (Formula eXpression Evaluator) parses formulas using intuitive excel-like syntax. It's safe to pass untrusted input to.

  • Respects BEDMAS order of operations
  • Functions: IF(), MIN(), MAX(), OR(), AND() and easy to add more
  • Division by zero produces zero

FXE is implemented near-identically in several languages to allow parsing the same user input across a range of systems. All implementations pass the same test cases.

Tags: PL