- Taschenbuch: 236 Seiten
- Verlag: O'Reilly & Associates (April 1997)
- Sprache: Englisch
- ISBN-10: 1565922611
- ISBN-13: 978-1565922617
- Größe und/oder Gewicht: 17,8 x 1,7 x 23,3 cm
- Durchschnittliche Kundenbewertung: 3 Kundenrezensionen
- Amazon Bestseller-Rang: Nr. 227.822 in Fremdsprachige Bücher (Siehe Top 100 in Fremdsprachige Bücher)
- Komplettes Inhaltsverzeichnis ansehen
Writing GNU Emacs Extensions: Editor Customizations and Creations withLisp (Nutshell Handbooks) (Englisch) Taschenbuch – April 1997
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Yes, it is possible to be all things to all people, if you're talking about the Emacs editor. As a user, you can make any kind of customization you want, from choosing the keystrokes that invoke your favorite commands to creating a whole new work environment that looks like nothing ever developed before. It's all in Emacs Lisp -- and in this short but fast-paced book. GNU Emacs is more than an editor; it's a programming environment, a communications package, and many other things. To provide such a broad range of functions, it offers a full version of the Lisp programming language -- something much more powerful than the little macro languages provided in other editors (including older versions of Emacs). GNU Emacs is a framework in which you can create whole new kinds of editors or just alter aspects of the many functions it already provides. In this book, Bob Glickstein delves deep into the features that permit far-reaching Emacs customizations. He teaches you the Lisp language and discusses Emacs topics (such as syntax tables and macro templates) in easy-to-digest portions. Examples progress in complexity from simple customizations to extensive major modes.You will learn how to write interactive commands, use hooks and advice, perform error recovery, manipulate windows, buffers, and keymaps, exploit and alter Emacs's main loop, and more. Each topic is explored through realistic examples and a series of successive refinements that illustrate not only the Emacs Lisp language, but the development process as well, making learning pleasant and natural.
Über den Autor und weitere Mitwirkende
Bob Glickstein's dog, Alex, says Bob is generous with treats and takes her to the park a lot. Alex remembers the time in the mid- to late 1980s when Bob was first exposed to Lisp at Carnegie Mellon University and created the Lisp-like filtering language FLAMES for the Andrew Message System. She is dimly aware of the way in which Bob's familiarity with Lisp helped him to overcome his initial dislike of Emacs, with the result that he is now an ardent Emacs advocate. Nowadays, she enjoys playing on the beaches and mountains of Northern California while Bob devises new ways to use Emacs for writing email software at Zanshin, Inc.
I bought this book thinking it would shed some light on why emacs says "File mode specification error: (void-function linux-c-mode)" when I put the comment /* -*- linux-c -*- */ as the first line of my source file. Emacs complains, yet that comment invokes exactly what I want: 8-space tabs. But this book doesn't talk about C mode, so it remains a mystery.
One of the things I loved most about this book is that from the very first chapter, made emacs more usable by correcting some annoying traits that I had just accepted. Now I realize I can fix what I don't like!
After finishing this book, a reader should be more confident in finding and modifying solutions contained at the gnu-emacs archive.
Hopefully emacs's popularity will increase further as even more people take its destiny into their own hands. This wonderful introduction is a good start.
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By "large" I mean mainly the number of functions available. Lisp as a language is not really hard to learn; it is just so different from many programming languages that it requires a few days of effort to get to "aha!". After that it becomes easy.
The drawback to this book is that it doesn't take you far enough. It is an excellent start, and having worked through it you should be able to find your way around in the online or other emacs Lisp documentation. However, it lacks an index of emacs Lisp functions, or other similar reference material. I find this unfortunate, but it's not a show-stopper because once you get through this book you will know enough to use other reference material.
So, this book has a gentle introduction to Emacs which is good if you just started using Emacs, but don't expect to be an expert in Emacs customization or have low level details of Emacs internals.
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