init(_:_:)
Creates a regex component that matches the given component zero or one times.
Declaration
init<W, C1, C2, C3, C4, C5, C6, C7, C8, C9, C10>(_ behavior: RegexRepetitionBehavior? = nil, @RegexComponentBuilder _ componentBuilder: () -> some RegexComponent) where Output == (Substring, C1?, C2?, C3?, C4?, C5?, C6?, C7?, C8?, C9?, C10?)Parameters
- behavior:
The repetition behavior to use when repeating
componentin the match. Ifbehaviorisnil, the default repetition behavior is used, which can be changed fromeagerby callingrepetitionBehavior(_:)on the resultingRegex. - componentBuilder:
A builder closure that generates a regex component.