Cardinality

public struct Cardinality : Equatable

Represents the cardinality of a rule. It can be specified as a closed range, including those with no upper bound (PartialRangeFrom)

  • The minimum number of matches, must be >= 0

    Declaration

    Swift

    public let minimumMatches: Int

  • The maximum number of matches. If nil, any number can be matched

    Declaration

    Swift

    public let maximumMatches: Int?

  • Creates a new range from the supplied partial range meaning that the number of allowable matches is infinite

    Declaration

    Swift

    public init(_ range: PartialRangeFrom<Int>)

    Parameters

    range

    The partial closed range of allowed match counts

  • Creates a new range from the supplied closed range meaning that the number of allowable matches is infinite

    Declaration

    Swift

    public init(_ range: ClosedRange<Int>)

    Parameters

    range

    The closed range of allowed match counts
  • one

    A pre-specified constant for one and exactly one matches

    Declaration

    Swift

    public static let one: Cardinality

  • A pre-specified constant for optional matches (between 0 and 1 matches)

    Declaration

    Swift

    public static let zeroOrOne: Cardinality

  • A pre-specified constant for optional but unbound matches (between 0 and infinity matches)

    Declaration

    Swift

    public static let zeroOrMore: Cardinality

  • A pre-specified constant for required but unbound matches (between 1 and infinity matches)

    Declaration

    Swift

    public static let oneOrMore: Cardinality

  • The equality function

    Declaration

    Swift

    public static func == (lhs: Cardinality, rhs: Cardinality) -> Bool