evaluator

Evaluator is a Go library that enables dynamic expression evaluation using s-expression syntax, commonly used in Lisp. It provides a flexible way to parse and compute expressions at runtime, making it useful for rule engines, configuration evaluation, and conditional logic in applications.

Key Features

• S-expression Syntax — Uses Lisp-style nested list notation for clear, structured expressions.
• Dynamic Evaluation — Evaluates expressions with variables and functions at runtime.
• Extensible Functions — Supports custom function registration for tailored logic.
• Multiple Data Types — Handles numbers, strings, booleans, times, and versions with type conversion.
• Reusable Expressions — Allows pre-parsed expressions to be evaluated multiple times with different parameters.
• Built-in Operators — Includes arithmetic, comparison, logical, and utility functions like in, between, and overlap.

Philosophy

Evaluator prioritizes simplicity and extensibility, offering a minimal yet powerful foundation for expression evaluation that developers can easily adapt to their specific needs.