BasketballJerseyNumber

Custom data type for representing basketball player numbers with additional validation rules.

Basic usage

init?(number: String) - initializes correctly with a positive number comprised of one or two digits.

Allowed numbers: 00, 01...09, 0...99.

Additional validation rules

You can use init?(number: String, validationRules: Set<JerseyNumberValidationRule>) to restrict valid numbers.

JerseyNumberValidationRule

.only0to5 - returns nil if number contains digits in range of 6...9 in any place

.doubleZeroNotAllowed - returns nil if number is "00"

.noLeadingZeros - returns nil for values like 01...09

Utility methods

copy(usingValidationRules rules: Set<JerseyNumberValidationRule>) -> BasketballJerseyNumber? - makes a copy by following all provided rules.

follows(rules: Set<JerseyNumberValidationRule>) -> Bool - verifies the number against a set of provided rules.

Protocol conformance

Conforms to Hashable and CustomStringConvertible.