RegexRule

public class RegexRule : Rule

RegexRule is a subclass of Rule that defines how a regular expression is validated.

  • Method used to initialize RegexRule object.

    Declaration

    Swift

    public init(regex: String, message: String = "Invalid Regular Expression")

    Parameters

    regex

    Regular expression string to be used in validation.
    message

    String of error message.

    Return Value

    An initialized RegexRule object, or nil if an object could not be created for some reason that would not result in an exception.

  • Method used to validate text field.

    Declaration

    Swift

    public func validate(value: String) -> Bool

    Parameters

    value

    String to checked for validation.

    Return Value

    Boolean value. True if validation is successful; False if validation fails.

  • Method used to dispaly error message when text field fails validation.

    Declaration

    Swift

    public func errorMessage() -> String

    Return Value

    String of error message.