Documentation/Parsers/ib.md
The interface builder parser accepts either a file or a directory, which it'll search for storyboard files. The parser will load all the scenes and all the segues for each storyboard. It supports both AppKit (macOS) and UIKit (iOS, watchOS, tvOS) storyboards.
The default filter for this command is: [^/]\.storyboard$. That means it'll accept any file with the extension storyboard.
You can provide a custom filter using the filter option, it accepts any valid regular expression. See the Config file documentation for more information.
This parser currently doesn't accept any options.