GNU Emacs is the most popular and widespread of the Emacs family of editors. It is also the most powerful and flexible. Unlike all other text editors, GNU Emacs is a complete working environment—you can stay within Emacs all day without leaving.
, 3rd Edition tells readers how to get started with the GNU Emacs editor. It is a thorough guide that will also "grow" with you: as you become more proficient, this book will help you learn how to use Emacs more effectively. It takes you from basic Emacs usage (simple text editing) to moderately complicated customization and programming.The third edition of
describes Emacs 21.3 from the ground up, including new user interface features such as an icon-based toolbar and an interactive interface to Emacs customization. A new chapter details how to install and run Emacs on Mac OS X, Windows, and Linux, including tips for using Emacs effectively on those platforms.
, third edition, covers:
Learning GNU Emacs
Learning GNU Emacs
Learning GNU Emacs
• How to edit files with Emacs
• Using the operating system shell through Emacs
• How to use multiple buffers, windows, and frames
• Customizing Emacs interactively and through startup files
• Writing macros to circumvent repetitious tasks
• Emacs as a programming environment for Java, C++, and Perl, among others
• Using Emacs as an integrated development environment (IDE)
• Integrating Emacs with CVS, Subversion and other change control systems for projects with multiple developers
• Writing HTML, XHTML, and XML with Emacs
• The basics of Emacs Lisp
The book is aimed at new Emacs users, whether or not they are programmers. Also useful for readers switching from other Emacs implementations to GNU Emacs.
11.3 Useful Built-in Emacs Functions
Many of the Emacs functions that exist and that you may write involve searching and manipulating the text in a buffer. Such functions are particularly useful in specialized modes, like the programming language modes described in Chapter 9. Many built-in Emacs functions relate to text in strings and buffers; the most interesting ones take advantage of Emacs's regular expression facility, which we introduced in Chapter 3.
We first describe the basic functions relating to buffers and strings that don't use regular expressions. Afterwards, we discuss regular expressions in more depth than was the case in Chapter 3, concentrating on the features that are most useful to Lisp programmers, and we describe the functions that Emacs makes available for dealing with regular expressions.
