The Craft of Text Editing

Is the progress of JEmacs too slow for you? Well then send loads of cash to Bothner. Do you long to wow the world with Visual BasicEmacs? If so, please kill yourself now (trust me, it will be less painful for both of us). But if you're want to pick up a bit about the architecture, data structures, and algorithms that go into writing a heavy duty text editor, then go read this book.