Writing GNU Emacs Extensions

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Writing GNU Emacs Extensions

Bob Glickstein

O'REILLY

Cambridge • Koln • Paris • Sebastopol • Tokyo

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Writing GNU Emacs Extensions

by Bob Glickstein

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1. Customizing Emacs 1

Backspace and Delete

Lisp

Keys and Strings

To What Is C-h Bound?

2. Simple New Commands 13

Traversing Windows

Line-at-a-Time Scrolling

Other Cursor and Text Motion Commands

Clobbering Symbolic Links

A Cure

Generalizing the Solution

4. Searching and Modifying Buffers 47

Inserting the Current Time

Creating a Lisp File

Loading the File

Compiling the File

Local Variables Lists

Recursive List Functions

Iterative List Functions

Other Useful List Functions

Destructive List Operations

Circular Lists?!

Defining a Minor Mode

Mode Meat

8. Evaluation and Error Recovery 110

limited-save-excursion

eval

111

Macro Functions

112

Backquote and Unquote

113

9. A Major Mode 122

My Quips File

122

Major Mode Skeleton

123

Changing the Definition of a Paragraph

125

Quip Commands

126

New York Times Rules

Data Representation

User Interface

141

Setting Up the Mode

148

Tracking Unauthorized Changes

157

Parsing the Buffer

163

185

198