Hacking Safari Bookmarks

Charles Miller asked Is there an AppleScripty way to manipulate Safari bookmarks? I'd like to be able to mirror my NetNewsWire subscriptions there.

Safari's AppleScript dictionary doesn't expose anything bookmark related. Maybe it will in a later beta release. In the meantime the bookmarks are stored as XML in ~/Library/Safari/Bookmarks.plist. I edited that file directly with the Property List Editor and successfully added bookmarks, though the editing would have been quicker in emacs. I basically copied other entries modifying values as appropriate. I made up the WebBookmarkUUID element (you'll have to look at the file to see what I'm talking about). I have no idea if the one I concocted will conflict with Safari's ID generation. Also, I had to quit and re-launch Safari for the bookmark to show up in the UI.