Validator

Validator is a user input validation library written in Swift. It’s comprehensive, designed for extension, and leaves the UI up to you.

Features:

•  Validation rules:
•  Required
•  Equality
•  Comparison
•  Length (min, max, range)
•  Pattern (email, password constraints and more…)
•  Contains
•  URL
•  Payment card (Luhn validated, accepted types)
•  Condition (quickly write your own)
•  Swift standard library type extensions with one API (not just strings!)
•  UIKit element extensions
•  Open validation error types
•  An open protocol-oriented implementation
•  Comprehensive test coverage
•  Comprehensive code documentation