init(_:as:transform:)

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

iOS
16.0+
macOS
13.0+
tvOS
16.0+
watchOS
9.0+
init<W, NewCapture>(_ component: some RegexComponent, as reference: Reference<NewCapture>, transform: @escaping (W) throws -> NewCapture?) where Output == (Substring, NewCapture)

Parameters

component

The regex component to capture.

reference

The reference to use for anything captured by component.

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.