Contents

init(_:transform:)

Creates a capture for the given component, attempting to transform with the given closure.

Declaration

init<W, C1, NewCapture>(@RegexComponentBuilder _ componentBuilder: () -> some RegexComponent, transform: @escaping (W) throws -> NewCapture?) where Output == (Substring, NewCapture, C1)

Parameters

  • componentBuilder:

    A builder closure that generates a regex component to capture.

  • transform:

    A closure that takes the substring matched by component and returns a new value to capture, or nil if matching should proceed, backtracking if allowed. If transform throws an error, matching is abandoned and the error is returned to the caller.