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1 \input texinfo
2
3 @setchapternewpage odd
4 @settitle GNU Emacs Manual
5 @setfilename ../info/emacs
6 @synindex pg cp
7
8 @ifnottex
9 @c The edition number appears in several places in this file
10 This is the fourteenth edition of the @cite{GNU Emacs Manual},
11 updated for Emacs version 21.0.97.
12 @c Please REMEMBER to update edition number in *three* places in this file.
13
14 @dircategory Emacs
15 @direntry
16 * Emacs: (emacs). The extensible self-documenting text editor.
17 @end direntry
18
19 Published by the Free Software Foundation
20 59 Temple Place, Suite 330
21 Boston, MA 02111-1307 USA
22
23 Copyright (C) 1985, 1986,1987,1993,1994,1995,1996,1997,1998,1999,2000,2001
24 Free Software Foundation, Inc.
25
26 Permission is granted to copy, distribute and/or modify this document
27 under the terms of the GNU Free Documentation License, Version 1.1 or
28 any later version published by the Free Software Foundation; with the
29 Invariant Sections being ``The GNU Manifesto'', ``Distribution'' and
30 ``GNU GENERAL PUBLIC LICENSE'', with the Front-Cover texts being ``A GNU
31 Manual'', and with the Back-Cover Texts as in (a) below. A copy of the
32 license is included in the section entitled ``GNU Free Documentation
33 License''.
34
35 (a) The FSF's Back-Cover Text is: ``You have freedom to copy and modify
36 this GNU Manual, like GNU software. Copies published by the Free
37 Software Foundation raise funds for GNU development.''
38 @end ifnottex
39
40 @c in general, keep the following line commented out, unless doing a
41 @c copy of this manual that will be published. the manual should go
42 @c onto the distribution in the full, 8.5 x 11" size.
43
44 @smallbook
45
46 @iftex
47 @kbdinputstyle code
48
49 @shorttitlepage GNU Emacs Manual
50 @end iftex
51 @titlepage
52 @sp 6
53 @center @titlefont{GNU Emacs Manual}
54 @sp 4
55 @center Fourteenth Edition, Updated for Emacs Version 21.0.97.
56 @sp 5
57 @center Richard Stallman
58 @page
59 @vskip 0pt plus 1filll
60 Copyright @copyright{} 1985, 1986, 1987, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
61 Free Software Foundation, Inc.
62 @sp 2
63 Fourteenth Edition @*
64 Updated for Emacs Version 21.0.97, @*
65 August 2000
66
67 ISBN 1-882114-06-X
68 @sp 1
69 Published by the Free Software Foundation @*
70 59 Temple Place, Suite 330 @*
71 Boston, MA 02111-1307 USA
72 @sp 1
73 Permission is granted to copy, distribute and/or modify this document
74 under the terms of the GNU Free Documentation License, Version 1.1 or
75 any later version published by the Free Software Foundation; with the
76 Invariant Sections being ``The GNU Manifesto'', ``Distribution'' and
77 ``GNU GENERAL PUBLIC LICENSE'', with the Front-Cover texts being ``A GNU
78 Manual'', and with the Back-Cover Texts as in (a) below. A copy of the
79 license is included in the section entitled ``GNU Free Documentation
80 License''.
81
82 (a) The FSF's Back-Cover Text is: ``You have freedom to copy and modify
83 this GNU Manual, like GNU software. Copies published by the Free
84 Software Foundation raise funds for GNU development.''
85
86 @sp 2
87 Cover art by Etienne Suvasa.
88
89 @end titlepage
90 @page
91 @ifnottex
92 @node Top, Distrib, (dir), (dir)
93 @top The Emacs Editor
94
95 Emacs is the extensible, customizable, self-documenting real-time
96 display editor. This Info file describes how to edit with Emacs and
97 some of how to customize it; it corresponds to GNU Emacs version 21.1.
98 For information on extending Emacs, see @ref{,Emacs Lisp,, elisp, The
99 Emacs Lisp Reference Manual}.
100 @end ifnottex
101
102 @ignore
103 These subcategories have been deleted for simplicity
104 and to avoid conflicts.
105 Completion
106 Backup Files
107 Auto-Saving: Protection Against Disasters
108 Snapshots
109 Text Mode
110 Outline Mode
111 @TeX{} Mode
112 Formatted Text
113 Fortran Mode
114 Fortran Indentation
115 Shell Command History
116
117 The ones for Dired and Rmail have had the items turned into :: items
118 to avoid conflicts.
119 Also Running Shell Commands from Emacs
120 and Sending Mail and Registers and Minibuffer.
121 @end ignore
122
123 @menu
124 * Distrib:: How to get the latest Emacs distribution.
125 * Copying:: The GNU General Public License gives you permission
126 to redistribute GNU Emacs on certain terms;
127 it also explains that there is no warranty.
128 * GNU Free Documentation License:: The license for this documentation.
129 * Intro:: An introduction to Emacs concepts.
130 * Glossary:: The glossary.
131 * Antinews:: Information about Emacs version 20.
132 * Mac OS:: Using Emacs in the Mac.
133 * MS-DOS:: Using Emacs on MS-DOS (otherwise known as "MS-DOG").
134 * Manifesto:: What's GNU? Gnu's Not Unix!
135 * Acknowledgments:: Major contributors to GNU Emacs.
136
137 Indexes (nodes containing large menus)
138 * Key Index:: An item for each standard Emacs key sequence.
139 * Command Index:: An item for each command name.
140 * Variable Index:: An item for each documented variable.
141 * Concept Index:: An item for each concept.
142
143 Important General Concepts
144 * Screen:: How to interpret what you see on the screen.
145 * User Input:: Kinds of input events (characters, buttons,
146 function keys).
147 * Keys:: Key sequences: what you type to request one
148 editing action.
149 * Commands:: Named functions run by key sequences to do editing.
150 * Text Characters:: Character set for text (the contents of buffers
151 and strings).
152 * Entering Emacs:: Starting Emacs from the shell.
153 * Exiting:: Stopping or killing Emacs.
154 * Command Arguments:: Hairy startup options.
155
156 Fundamental Editing Commands
157 * Basic:: The most basic editing commands.
158 * Minibuffer:: Entering arguments that are prompted for.
159 * M-x:: Invoking commands by their names.
160 * Help:: Commands for asking Emacs about its commands.
161
162 Important Text-Changing Commands
163 * Mark:: The mark: how to delimit a ``region'' of text.
164 * Killing:: Killing text.
165 * Yanking:: Recovering killed text. Moving text.
166 * Accumulating Text:: Other ways of copying text.
167 * Rectangles:: Operating on the text inside a rectangle on the screen.
168 * Registers:: Saving a text string or a location in the buffer.
169 * Display:: Controlling what text is displayed.
170 * Search:: Finding or replacing occurrences of a string.
171 * Fixit:: Commands especially useful for fixing typos.
172
173 Major Structures of Emacs
174 * Files:: All about handling files.
175 * Buffers:: Multiple buffers; editing several files at once.
176 * Windows:: Viewing two pieces of text at once.
177 * Frames:: Running the same Emacs session in multiple X windows.
178 * International:: Using non-ASCII character sets (the MULE features).
179
180 Advanced Features
181 * Major Modes:: Text mode vs. Lisp mode vs. C mode ...
182 * Indentation:: Editing the white space at the beginnings of lines.
183 * Text:: Commands and modes for editing English.
184 * Programs:: Commands and modes for editing programs.
185 * Building:: Compiling, running and debugging programs.
186 * Abbrevs:: How to define text abbreviations to reduce
187 the number of characters you must type.
188 * Picture:: Editing pictures made up of characters
189 using the quarter-plane screen model.
190 * Sending Mail:: Sending mail in Emacs.
191 * Rmail:: Reading mail in Emacs.
192 * Dired:: You can ``edit'' a directory to manage files in it.
193 * Calendar/Diary:: The calendar and diary facilities.
194 * Gnus:: How to read netnews with Emacs.
195 * Shell:: Executing shell commands from Emacs.
196 * Emacs Server:: Using Emacs as an editing server for @code{mail}, etc.
197 * Hardcopy:: Printing buffers or regions.
198 * PostScript:: Printing buffers or regions as PostScript.
199 * PostScript Variables::
200 Customizing the PostScript printing commands.
201 * Sorting:: Sorting lines, paragraphs or pages within Emacs.
202 * Narrowing:: Restricting display and editing to a portion
203 of the buffer.
204 * Two-Column:: Splitting apart columns to edit them
205 in side-by-side windows.
206 * Editing Binary Files::
207 Using Hexl mode to edit binary files.
208 * Saving Emacs Sessions::
209 Saving Emacs state from one session to the next.
210 * Recursive Edit:: A command can allow you to do editing
211 "within the command". This is called a
212 `recursive editing level'.
213 * Emulation:: Emulating some other editors with Emacs.
214 * Hyperlinking:: Following links in buffers.
215 * Dissociated Press:: Dissociating text for fun.
216 * Amusements:: Various games and hacks.
217 * Customization:: Modifying the behavior of Emacs.
218
219 Recovery from Problems
220 * Quitting:: Quitting and aborting.
221 * Lossage:: What to do if Emacs is hung or malfunctioning.
222 * Bugs:: How and when to report a bug.
223 * Contributing:: How to contribute improvements to Emacs.
224 * Service:: How to get help for your own Emacs needs.
225
226 Here are some other nodes which are really inferiors of the ones
227 already listed, mentioned here so you can get to them in one step:
228
229 --- The Detailed Node Listing ---
230
231 The Organization of the Screen
232
233 * Point:: The place in the text where editing commands operate.
234 * Echo Area:: Short messages appear at the bottom of the screen.
235 * Mode Line:: Interpreting the mode line.
236 * Menu Bar:: How to use the menu bar.
237
238 Basic Editing Commands
239
240 * Inserting Text:: Inserting text by simply typing it.
241 * Moving Point:: How to move the cursor to the place where you want to
242 change something.
243 * Erasing:: Deleting and killing text.
244 * Undo:: Undoing recent changes in the text.
245 * Files: Basic Files. Visiting, creating, and saving files.
246 * Help: Basic Help. Asking what a character does.
247 * Blank Lines:: Commands to make or delete blank lines.
248 * Continuation Lines:: Lines too wide for the screen.
249 * Position Info:: What page, line, row, or column is point on?
250 * Arguments:: Numeric arguments for repeating a command.
251
252 The Minibuffer
253
254 * Minibuffer File:: Entering file names with the minibuffer.
255 * Minibuffer Edit:: How to edit in the minibuffer.
256 * Completion:: An abbreviation facility for minibuffer input.
257 * Minibuffer History:: Reusing recent minibuffer arguments.
258 * Repetition:: Re-executing commands that used the minibuffer.
259
260 Help
261
262 * Help Summary:: Brief list of all Help commands.
263 * Key Help:: Asking what a key does in Emacs.
264 * Name Help:: Asking about a command, variable or function name.
265 * Apropos:: Asking what pertains to a given topic.
266 * Library Keywords:: Finding Lisp libraries by keywords (topics).
267 * Language Help:: Help relating to international language support.
268 * Misc Help:: Other help commands.
269
270 The Mark and the Region
271
272 * Setting Mark:: Commands to set the mark.
273 * Transient Mark:: How to make Emacs highlight the region--
274 when there is one.
275 * Using Region:: Summary of ways to operate on contents of the region.
276 * Marking Objects:: Commands to put region around textual units.
277 * Mark Ring:: Previous mark positions saved so you can go back there.
278 * Global Mark Ring:: Previous mark positions in various buffers.
279
280 Deletion and Killing
281
282 * Deletion:: Commands for deleting small amounts of text and
283 blank areas.
284 * Killing by Lines:: How to kill entire lines of text at one time.
285 * Other Kill Commands:: Commands to kill large regions of text and
286 syntactic units such as words and sentences.
287
288 Yanking
289
290 * Kill Ring:: Where killed text is stored. Basic yanking.
291 * Appending Kills:: Several kills in a row all yank together.
292 * Earlier Kills:: Yanking something killed some time ago.
293
294 Registers
295
296 * RegPos:: Saving positions in registers.
297 * RegText:: Saving text in registers.
298 * RegRect:: Saving rectangles in registers.
299 * RegConfig:: Saving window configurations in registers.
300 * RegFiles:: File names in registers.
301 * Bookmarks:: Bookmarks are like registers, but persistent.
302
303 Controlling the Display
304
305 * Scrolling:: Moving text up and down in a window.
306 * Horizontal Scrolling:: Moving text left and right in a window.
307 * Follow Mode:: Follow mode lets two windows scroll as one.
308 * Selective Display:: Hiding lines with lots of indentation.
309 * Optional Mode Line:: Optional mode line display features.
310 * Text Display:: How text is normally displayed.
311 * Display Vars:: Information on variables for customizing display.
312
313 Searching and Replacement
314
315 * Incremental Search:: Search happens as you type the string.
316 * Nonincremental Search:: Specify entire string and then search.
317 * Word Search:: Search for sequence of words.
318 * Regexp Search:: Search for match for a regexp.
319 * Regexps:: Syntax of regular expressions.
320 * Search Case:: To ignore case while searching, or not.
321 * Replace:: Search, and replace some or all matches.
322 * Other Repeating Search:: Operating on all matches for some regexp.
323
324 Replacement Commands
325
326 * Unconditional Replace:: Replacing all matches for a string.
327 * Regexp Replace:: Replacing all matches for a regexp.
328 * Replacement and Case:: How replacements preserve case of letters.
329 * Query Replace:: How to use querying.
330
331 Commands for Fixing Typos
332
333 * Kill Errors:: Commands to kill a batch of recently entered text.
334 * Transpose:: Exchanging two characters, words, lines, lists...
335 * Fixing Case:: Correcting case of last word entered.
336 * Spelling:: Apply spelling checker to a word or a whole buffer.
337
338 File Handling
339
340 * File Names:: How to type and edit file-name arguments.
341 * Visiting:: Visiting a file prepares Emacs to edit the file.
342 * Saving:: Saving makes your changes permanent.
343 * Reverting:: Reverting cancels all the changes not saved.
344 * Auto Save:: Auto Save periodically protects against loss of data.
345 * File Aliases:: Handling multiple names for one file.
346 * Version Control:: Version control systems (RCS, CVS and SCCS).
347 * Directories:: Creating, deleting, and listing file directories.
348 * Comparing Files:: Finding where two files differ.
349 * Misc File Ops:: Other things you can do on files.
350 * Compressed Files:: Accessing compressed files.
351 * Remote Files:: Accessing files on other sites.
352 * Quoted File Names:: Quoting special characters in file names.
353
354 Saving Files
355
356 * Backup:: How Emacs saves the old version of your file.
357 * Interlocking:: How Emacs protects against simultaneous editing
358 of one file by two users.
359
360 Version Control
361
362 * Introduction to VC:: How version control works in general.
363 * VC Mode Line:: How the mode line shows version control status.
364 * Basic VC Editing:: How to edit a file under version control.
365 * Old Versions:: Examining and comparing old versions.
366 * Secondary VC Commands:: The commands used a little less frequently.
367 * Branches:: Multiple lines of development.
368 * Snapshots:: Sets of file versions treated as a unit.
369 * Miscellaneous VC:: Various other commands and features of VC.
370 * Customizing VC:: Variables that change VC's behavior.
371
372 Using Multiple Buffers
373
374 * Select Buffer:: Creating a new buffer or reselecting an old one.
375 * List Buffers:: Getting a list of buffers that exist.
376 * Misc Buffer:: Renaming; changing read-onlyness; copying text.
377 * Kill Buffer:: Killing buffers you no longer need.
378 * Several Buffers:: How to go through the list of all buffers
379 and operate variously on several of them.
380 * Indirect Buffers:: An indirect buffer shares the text of another buffer.
381
382 Multiple Windows
383
384 * Basic Window:: Introduction to Emacs windows.
385 * Split Window:: New windows are made by splitting existing windows.
386 * Other Window:: Moving to another window or doing something to it.
387 * Pop Up Window:: Finding a file or buffer in another window.
388 * Force Same Window:: Forcing certain buffers to appear in the selected
389 window rather than in another window.
390 * Change Window:: Deleting windows and changing their sizes.
391
392 Frames and X Windows
393
394 * Mouse Commands:: Moving, cutting, and pasting, with the mouse.
395 * Secondary Selection:: Cutting without altering point and mark.
396 * Mouse References:: Using the mouse to select an item from a list.
397 * Menu Mouse Clicks:: Mouse clicks that bring up menus.
398 * Mode Line Mouse:: Mouse clicks on the mode line.
399 * Creating Frames:: Creating additional Emacs frames with various contents.
400 * Multiple Displays:: How one Emacs job can talk to several displays.
401 * Special Buffer Frames:: You can make certain buffers have their own frames.
402 * Frame Parameters:: Changing the colors and other modes of frames.
403 * Scroll Bars:: How to enable and disable scroll bars; how to use them.
404 * Menu Bars:: Enabling and disabling the menu bar.
405 * Faces:: How to change the display style using faces.
406 * Font Lock:: Minor mode for syntactic highlighting using faces.
407 * Support Modes:: Font Lock support modes make Font Lock faster.
408 * Misc X:: Iconifying and deleting frames. Region highlighting.
409 * Non-Window Terminals:: Multiple frames on terminals that show only one.
410
411 Font Lock Support Modes
412
413 * Fast Lock Mode:: Saving font information in files.
414 * Lazy Lock Mode:: Fontifying only text that is actually displayed.
415 * Fast or Lazy:: Which support mode is best for you?
416
417 International Character Set Support
418
419 * International Intro:: Basic concepts of multibyte characters.
420 * Enabling Multibyte:: Controlling whether to use multibyte characters.
421 * Language Environments:: Setting things up for the language you use.
422 * Input Methods:: Entering text characters not on your keyboard.
423 * Select Input Method:: Specifying your choice of input methods.
424 * Coding Systems:: Character set conversion when you read and
425 write files, and so on.
426 * Recognize Coding:: How Emacs figures out which conversion to use.
427 * Specify Coding:: Various ways to choose which conversion to use.
428 * Fontsets:: Fontsets are collections of fonts
429 that cover the whole spectrum of characters.
430 * Defining Fontsets:: Defining a new fontset.
431 * Single-Byte Character Support::
432 You can pick one European character set
433 to use without multibyte characters.
434
435 Major Modes
436
437 * Choosing Modes:: How major modes are specified or chosen.
438
439 Indentation
440
441 * Indentation Commands:: Various commands and techniques for indentation.
442 * Tab Stops:: You can set arbitrary "tab stops" and then
443 indent to the next tab stop when you want to.
444 * Just Spaces:: You can request indentation using just spaces.
445
446 Commands for Human Languages
447
448 * Words:: Moving over and killing words.
449 * Sentences:: Moving over and killing sentences.
450 * Paragraphs:: Moving over paragraphs.
451 * Pages:: Moving over pages.
452 * Filling:: Filling or justifying text.
453 * Case:: Changing the case of text.
454 * Text Mode:: The major modes for editing text files.
455 * Outline Mode:: Editing outlines.
456 * TeX Mode:: Editing input to the formatter TeX.
457 * Nroff Mode:: Editing input to the formatter nroff.
458 * Formatted Text:: Editing formatted text directly in WYSIWYG fashion.
459
460 Filling Text
461
462 * Auto Fill:: Auto Fill mode breaks long lines automatically.
463 * Fill Commands:: Commands to refill paragraphs and center lines.
464 * Fill Prefix:: Filling paragraphs that are indented
465 or in a comment, etc.
466 * Adaptive Fill:: How Emacs can determine the fill prefix automatically.
467
468 Editing Programs
469
470 * Program Modes:: Major modes for editing programs.
471 * Lists:: Expressions with balanced parentheses.
472 * List Commands:: The commands for working with list and sexps.
473 * Defuns:: Each program is made up of separate functions.
474 There are editing commands to operate on them.
475 * Program Indent:: Adjusting indentation to show the nesting.
476 * Matching:: Insertion of a close-delimiter flashes matching open.
477 * Comments:: Inserting, killing, and aligning comments.
478 * Balanced Editing:: Inserting two matching parentheses at once, etc.
479 * Symbol Completion:: Completion on symbol names of your program or language.
480 * Documentation:: Getting documentation of functions you plan to call.
481 * Change Log:: Maintaining a change history for your program.
482 * Tags:: Go directly to any function in your program in one
483 command. Tags remembers which file it is in.
484 * Emerge:: A convenient way of merging two versions of a program.
485 * C Modes:: Special commands of C, C++, Objective-C and Java modes.
486 * Fortran:: Fortran mode and its special features.
487 * Asm Mode:: Asm mode and its special features.
488
489 Indentation for Programs
490
491 * Basic Indent:: Indenting a single line.
492 * Multi-line Indent:: Commands to reindent many lines at once.
493 * Lisp Indent:: Specifying how each Lisp function should be indented.
494 * C Indent:: Choosing an indentation style for C code.
495
496 Tags Tables
497
498 * Tag Syntax:: Tag syntax for various types of code and text files.
499 * Create Tags Table:: Creating a tags table with @code{etags}.
500 * Select Tags Table:: How to visit a tags table.
501 * Find Tag:: Commands to find the definition of a specific tag.
502 * Tags Search:: Using a tags table for searching and replacing.
503 * List Tags:: Listing and finding tags defined in a file.
504
505 Merging Files with Emerge
506
507 * Overview of Emerge:: How to start Emerge. Basic concepts.
508 * Submodes of Emerge:: Fast mode vs. Edit mode.
509 Skip Prefers mode and Auto Advance mode.
510 * State of Difference:: You do the merge by specifying state A or B
511 for each difference.
512 * Merge Commands:: Commands for selecting a difference,
513 changing states of differences, etc.
514 * Exiting Emerge:: What to do when you've finished the merge.
515 * Combining in Emerge:: How to keep both alternatives for a difference.
516 * Fine Points of Emerge:: Misc.
517
518 Compiling and Testing Programs
519
520 * Compilation:: Compiling programs in languages other
521 than Lisp (C, Pascal, etc.).
522 * Compilation Mode:: The mode for visiting compiler errors.
523 * Compilation Shell:: Customizing your shell properly
524 for use in the compilation buffer.
525 * Debuggers:: Running symbolic debuggers for non-Lisp programs.
526 * Executing Lisp:: Various modes for editing Lisp programs,
527 with different facilities for running
528 the Lisp programs.
529 * Lisp Libraries:: Creating Lisp programs to run in Emacs.
530 * Lisp Interaction:: Executing Lisp in an Emacs buffer.
531 * Lisp Eval:: Executing a single Lisp expression in Emacs.
532 * External Lisp:: Communicating through Emacs with a separate Lisp.
533
534 Running Debuggers Under Emacs
535
536 * Starting GUD:: How to start a debugger subprocess.
537 * Debugger Operation:: Connection between the debugger and source buffers.
538 * Commands of GUD:: Key bindings for common commands.
539 * GUD Customization:: Defining your own commands for GUD.
540
541 Abbrevs
542
543 * Abbrev Concepts:: Fundamentals of defined abbrevs.
544 * Defining Abbrevs:: Defining an abbrev, so it will expand when typed.
545 * Expanding Abbrevs:: Controlling expansion: prefixes, canceling expansion.
546 * Editing Abbrevs:: Viewing or editing the entire list of defined abbrevs.
547 * Saving Abbrevs:: Saving the entire list of abbrevs for another session.
548 * Dynamic Abbrevs:: Abbreviations for words already in the buffer.
549
550 Editing Pictures
551
552 * Basic Picture:: Basic concepts and simple commands of Picture Mode.
553 * Insert in Picture:: Controlling direction of cursor motion
554 after "self-inserting" characters.
555 * Tabs in Picture:: Various features for tab stops and indentation.
556 * Rectangles in Picture:: Clearing and superimposing rectangles.
557
558 Sending Mail
559
560 * Mail Format:: Format of the mail being composed.
561 * Mail Headers:: Details of permitted mail header fields.
562 * Mail Aliases:: Abbreviating and grouping mail addresses.
563 * Mail Mode:: Special commands for editing mail being composed.
564 * Distracting NSA:: How to distract the NSA's attention.
565 * Mail Methods:: Using alternative mail-composition methods.
566
567 Reading Mail with Rmail
568
569 * Rmail Basics:: Basic concepts of Rmail, and simple use.
570 * Rmail Scrolling:: Scrolling through a message.
571 * Rmail Motion:: Moving to another message.
572 * Rmail Deletion:: Deleting and expunging messages.
573 * Rmail Inbox:: How mail gets into the Rmail file.
574 * Rmail Files:: Using multiple Rmail files.
575 * Rmail Output:: Copying message out to files.
576 * Rmail Labels:: Classifying messages by labeling them.
577 * Rmail Attributes:: Certain standard labels, called attributes.
578 * Rmail Reply:: Sending replies to messages you are viewing.
579 * Rmail Summary:: Summaries show brief info on many messages.
580 * Rmail Sorting:: Sorting messages in Rmail.
581 * Rmail Display:: How Rmail displays a message; customization.
582 * Rmail Editing:: Editing message text and headers in Rmail.
583 * Rmail Digest:: Extracting the messages from a digest message.
584 * Out of Rmail:: Converting an Rmail file to mailbox format.
585 * Rmail Rot13:: Reading messages encoded in the rot13 code.
586 * Movemail:: More details of fetching new mail.
587
588 Dired, the Directory Editor
589
590 * Dired Enter:: How to invoke Dired.
591 * Dired Commands:: Commands in the Dired buffer.
592 * Dired Deletion:: Deleting files with Dired.
593 * Flagging Many Files:: Flagging files based on their names.
594 * Dired Visiting:: Other file operations through Dired.
595 * Marks vs Flags:: Flagging for deletion vs marking.
596 * Operating on Files:: How to copy, rename, print, compress, etc.
597 either one file or several files.
598 * Shell Commands in Dired:: Running a shell command on the marked files.
599 * Transforming File Names:: Using patterns to rename multiple files.
600 * Comparison in Dired:: Running `diff' by way of Dired.
601 * Subdirectories in Dired:: Adding subdirectories to the Dired buffer.
602 * Subdirectory Motion:: Moving across subdirectories, and up and down.
603 * Hiding Subdirectories:: Making subdirectories visible or invisible.
604 * Dired Updating:: Discarding lines for files of no interest.
605 * Dired and Find:: Using `find' to choose the files for Dired.
606
607 The Calendar and the Diary
608
609 * Calendar Motion:: Moving through the calendar; selecting a date.
610 * Scroll Calendar:: Bringing earlier or later months onto the screen.
611 * Counting Days:: How many days are there between two dates?
612 * General Calendar:: Exiting or recomputing the calendar.
613 * LaTeX Calendar:: Print a calendar using LaTeX.
614 * Holidays:: Displaying dates of holidays.
615 * Sunrise/Sunset:: Displaying local times of sunrise and sunset.
616 * Lunar Phases:: Displaying phases of the moon.
617 * Other Calendars:: Converting dates to other calendar systems.
618 * Diary:: Displaying events from your diary.
619 * Appointments:: Reminders when it's time to do something.
620 * Daylight Savings:: How to specify when daylight savings time is active.
621
622 Movement in the Calendar
623
624 * Calendar Unit Motion:: Moving by days, weeks, months, and years.
625 * Move to Beginning or End:: Moving to start/end of weeks, months, and years.
626 * Specified Dates:: Moving to the current date or another
627 specific date.
628
629 Conversion To and From Other Calendars
630
631 * Calendar Systems:: The calendars Emacs understands
632 (aside from Gregorian).
633 * To Other Calendar:: Converting the selected date to various calendars.
634 * From Other Calendar:: Moving to a date specified in another calendar.
635 * Mayan Calendar:: Moving to a date specified in a Mayan calendar.
636
637 The Diary
638
639 * Diary Commands:: Viewing diary entries and associated calendar dates.
640 * Format of Diary File:: Entering events in your diary.
641 * Date Formats:: Various ways you can specify dates.
642 * Adding to Diary:: Commands to create diary entries.
643 * Special Diary Entries:: Anniversaries, blocks of dates, cyclic entries, etc.
644
645 @sc{Gnus}
646
647 * Buffers of Gnus:: The group, summary, and article buffers.
648 * Gnus Startup:: What you should know about starting Gnus.
649 * Summary of Gnus:: A short description of the basic Gnus commands.
650
651 Running Shell Commands from Emacs
652
653 * Single Shell:: How to run one shell command and return.
654 * Interactive Shell:: Permanent shell taking input via Emacs.
655 * Shell Mode:: Special Emacs commands used with permanent shell.
656 * Shell History:: Repeating previous commands in a shell buffer.
657 * Shell Options:: Options for customizing Shell mode.
658 * Remote Host:: Connecting to another computer.
659
660 Customization
661
662 * Minor Modes:: Each minor mode is one feature you can turn on
663 independently of any others.
664 * Variables:: Many Emacs commands examine Emacs variables
665 to decide what to do; by setting variables,
666 you can control their functioning.
667 * Keyboard Macros:: A keyboard macro records a sequence of
668 keystrokes to be replayed with a single command.
669 * Key Bindings:: The keymaps say what command each key runs.
670 By changing them, you can "redefine keys".
671 * Keyboard Translations::
672 If your keyboard passes an undesired code
673 for a key, you can tell Emacs to
674 substitute another code.
675 * Syntax:: The syntax table controls how words and
676 expressions are parsed.
677 * Init File:: How to write common customizations in the
678 @file{.emacs} file.
679
680 Variables
681
682 * Examining:: Examining or setting one variable's value.
683 * Easy Customization::
684 Convenient and easy customization of variables.
685 * Hooks:: Hook variables let you specify programs for parts
686 of Emacs to run on particular occasions.
687 * Locals:: Per-buffer values of variables.
688 * File Variables:: How files can specify variable values.
689
690 Keyboard Macros
691
692 * Basic Kbd Macro:: Defining and running keyboard macros.
693 * Save Kbd Macro:: Giving keyboard macros names; saving them in files.
694 * Kbd Macro Query:: Making keyboard macros do different things each time.
695
696 Customizing Key Bindings
697
698 * Keymaps:: Generalities. The global keymap.
699 * Prefix Keymaps:: Keymaps for prefix keys.
700 * Local Keymaps:: Major and minor modes have their own keymaps.
701 * Minibuffer Maps:: The minibuffer uses its own local keymaps.
702 * Rebinding:: How to redefine one key's meaning conveniently.
703 * Init Rebinding:: Rebinding keys with your init file, @file{.emacs}.
704 * Function Keys:: Rebinding terminal function keys.
705 * Named ASCII Chars:: Distinguishing @key{TAB} from @kbd{C-i}, and so on.
706 * Mouse Buttons:: Rebinding mouse buttons in Emacs.
707 * Disabling:: Disabling a command means confirmation is required
708 before it can be executed. This is done to protect
709 beginners from surprises.
710
711 The Init File, @file{~/.emacs}
712
713 * Init Syntax:: Syntax of constants in Emacs Lisp.
714 * Init Examples:: How to do some things with an init file.
715 * Terminal Init:: Each terminal type can have an init file.
716 * Find Init:: How Emacs finds the init file.
717
718 Dealing with Emacs Trouble
719
720 * DEL Gets Help:: What to do if @key{DEL} doesn't delete.
721 * Stuck Recursive:: `[...]' in mode line around the parentheses.
722 * Screen Garbled:: Garbage on the screen.
723 * Text Garbled:: Garbage in the text.
724 * Unasked-for Search:: Spontaneous entry to incremental search.
725 * Memory Full:: How to cope when you run out of memory.
726 * Emergency Escape:: Emergency escape---
727 What to do if Emacs stops responding.
728 * Total Frustration:: When you are at your wits' end.
729
730 Reporting Bugs
731
732 * Criteria: Bug Criteria. Have you really found a bug?
733 * Understanding Bug Reporting:: How to report a bug effectively.
734 * Checklist:: Steps to follow for a good bug report.
735 * Sending Patches:: How to send a patch for GNU Emacs.
736
737 Command Line Options and Arguments
738
739 * Action Arguments:: Arguments to visit files, load libraries,
740 and call functions.
741 * Initial Options:: Arguments that take effect while starting Emacs.
742 * Command Example:: Examples of using command line arguments.
743 * Resume Arguments:: Specifying arguments when you resume a running Emacs.
744 * Environment:: Environment variables that Emacs uses.
745
746 * Display X:: Changing the default display and using remote login.
747 * Font X:: Choosing a font for text, under X.
748 * Colors X:: Choosing colors, under X.
749 * Window Size X:: Start-up window size, under X.
750 * Borders X:: Internal and external borders, under X.
751 * Title X:: Specifying the initial frame's title.
752 * Icons X:: Choosing what sort of icon to use, under X.
753 * Resources X:: Advanced use of classes and resources, under X.
754 * Lucid Resources:: X resources for Lucid menus.
755 * Motif Resources:: X resources for Motif menus.
756
757 Environment Variables
758
759 * General Variables:: Environment variables that all versions of Emacs use.
760 * Misc Variables:: Certain system specific variables.
761
762 MS-DOS and Windows 95/98/NT
763
764 * MS-DOS Input:: Keyboard and mouse usage on MS-DOS.
765 * MS-DOS Display:: Fonts, frames and display size on MS-DOS.
766 * MS-DOS File Names:: File-name conventions on MS-DOS.
767 * Text and Binary:: Text files on MS-DOS use CRLF to separate lines.
768 * MS-DOS Printing:: How to specify the printer on MS-DOS.
769 * MS-DOS Processes:: Running subprocesses on MS-DOS.
770 * Windows Processes:: Running subprocesses on Windows.
771 * Windows System Menu:: Controlling what the ALT key does.
772 @end menu
773
774 @iftex
775 @unnumbered Preface
776
777 This manual documents the use and simple customization of the Emacs
778 editor. The reader is not expected to be a programmer; simple
779 customizations do not require programming skill. But the user who is not
780 interested in customizing can ignore the scattered customization hints.
781
782 This is primarily a reference manual, but can also be used as a
783 primer. For complete beginners, it is a good idea to start with the
784 on-line, learn-by-doing tutorial, before reading the manual. To run the
785 tutorial, start Emacs and type @kbd{C-h t}. This way you can learn
786 Emacs by using Emacs on a specially designed file which describes
787 commands, tells you when to try them, and then explains the results you
788 see.
789
790 On first reading, just skim chapters 1 and 2, which describe the
791 notational conventions of the manual and the general appearance of the
792 Emacs display screen. Note which questions are answered in these
793 chapters, so you can refer back later. After reading chapter 4, you
794 should practice the commands there. The next few chapters describe
795 fundamental techniques and concepts that are used constantly. You need
796 to understand them thoroughly, experimenting with them if necessary.
797
798 Chapters 14 through 19 describe intermediate-level features that are
799 useful for all kinds of editing. Chapter 20 and following chapters
800 describe features that you may or may not want to use; read those
801 chapters when you need them.
802
803 Read the Trouble chapter if Emacs does not seem to be working
804 properly. It explains how to cope with some common problems
805 (@pxref{Lossage}), as well as when and how to report Emacs bugs
806 (@pxref{Bugs}).
807
808 To find the documentation on a particular command, look in the index.
809 Keys (character commands) and command names have separate indexes. There
810 is also a glossary, with a cross reference for each term.
811
812 This manual is available as a printed book and also as an Info file.
813 The Info file is for on-line perusal with the Info program, which will
814 be the principal way of viewing documentation on-line in the GNU system.
815 Both the Info file and the Info program itself are distributed along
816 with GNU Emacs. The Info file and the printed book contain
817 substantially the same text and are generated from the same source
818 files, which are also distributed along with GNU Emacs.
819
820 GNU Emacs is a member of the Emacs editor family. There are many Emacs
821 editors, all sharing common principles of organization. For information on
822 the underlying philosophy of Emacs and the lessons learned from its
823 development, write for a copy of AI memo 519a, ``Emacs, the Extensible,
824 Customizable Self-Documenting Display Editor,'' to Publications Department,
825 Artificial Intelligence Lab, 545 Tech Square, Cambridge, MA 02139, USA@. At
826 last report they charge $2.25 per copy. Another useful publication is LCS
827 TM-165, ``A Cookbook for an Emacs,'' by Craig Finseth, available from
828 Publications Department, Laboratory for Computer Science, 545 Tech Square,
829 Cambridge, MA 02139, USA@. The price today is $3.
830
831 This edition of the manual is intended for use with GNU Emacs installed
832 on GNU and Unix systems. GNU Emacs can also be used on VMS, MS-DOS
833 (also called MS-DOG), Windows NT, and Windows 95 systems. Those systems use
834 different file name syntax; in addition, VMS and MS-DOS do not support
835 all GNU Emacs features. We don't try to describe VMS usage in this
836 manual. @xref{MS-DOS}, for information about using Emacs on MS-DOS.
837 @end iftex
838
839 @node Distrib, Copying, Top, Top
840 @unnumbered Distribution
841
842 GNU Emacs is @dfn{free software}; this means that everyone is free to
843 use it and free to redistribute it on certain conditions. GNU Emacs is
844 not in the public domain; it is copyrighted and there are restrictions
845 on its distribution, but these restrictions are designed to permit
846 everything that a good cooperating citizen would want to do. What is
847 not allowed is to try to prevent others from further sharing any version
848 of GNU Emacs that they might get from you. The precise conditions are
849 found in the GNU General Public License that comes with Emacs and also
850 appears following this section.
851
852 One way to get a copy of GNU Emacs is from someone else who has it. You
853 need not ask for our permission to do so, or tell any one else; just
854 copy it. If you have access to the Internet, you can get the latest
855 distribution version of GNU Emacs by anonymous FTP; see the file
856 @file{etc/FTP} in the Emacs distribution for more information.
857
858 You may also receive GNU Emacs when you buy a computer. Computer
859 manufacturers are free to distribute copies on the same terms that apply to
860 everyone else. These terms require them to give you the full sources,
861 including whatever changes they may have made, and to permit you to
862 redistribute the GNU Emacs received from them under the usual terms of the
863 General Public License. In other words, the program must be free for you
864 when you get it, not just free for the manufacturer.
865
866 You can also order copies of GNU Emacs from the Free Software Foundation
867 on CD-ROM@. This is a convenient and reliable way to get a copy; it is
868 also a good way to help fund our work. (The Foundation has always
869 received most of its funds in this way.) An order form is included in
870 the file @file{etc/ORDERS} in the Emacs distribution, and on our web
871 site in @url{http://www.gnu.org/order/order.html}. For further
872 information, write to
873
874 @display
875 Free Software Foundation
876 59 Temple Place, Suite 330
877 Boston, MA 02111-1307 USA
878 USA
879 @end display
880
881 The income from distribution fees goes to support the foundation's
882 purpose: the development of new free software, and improvements to our
883 existing programs including GNU Emacs.
884
885 If you find GNU Emacs useful, please @strong{send a donation} to the
886 Free Software Foundation to support our work. Donations to the Free
887 Software Foundation are tax deductible in the US. If you use GNU Emacs
888 at your workplace, please suggest that the company make a donation. If
889 company policy is unsympathetic to the idea of donating to charity, you
890 might instead suggest ordering a CD-ROM from the Foundation
891 occasionally, or subscribing to periodic updates.
892
893 @iftex
894 Contributors to GNU Emacs include Per Abrahamsen, Jay K. Adams, Joe
895 Arceneaux, Boaz Ben-Zvi, Jim Blandy, Terrence Brannon, Frank Bresz,
896 Peter Breton, Kevin Broadey, Vincent Broman, David M. Brown, Bill
897 Carpenter, Hans Chalupsky, Bob Chassell, James Clark, Mike Clarkson,
898 Glynn Clements, Andrew Csillag, Doug Cutting, Michael DeCorte, Gary
899 Delp, Matthieu Devin, Eri Ding, Carsten Dominik, Scott Draves, Viktor
900 Dukhovni, John Eaton, Rolf Ebert, Stephen Eglen, Torbj@"orn Einarsson,
901 Tsugumoto Enami, Hans Henrik Eriksen, Michael Ernst, Ata Etemadi,
902 Frederick Farnback, Fred Fish, Karl Fogel, Gary Foster, Noah Friedman,
903 Keith Gabryelski, Kevin Gallagher, Kevin Gallo, Howard Gayle, Stephen
904 Gildea, David Gillespie, Bob Glickstein, Boris Goldowsky, Michelangelo
905 Grigni, Michael Gschwind, Henry Guillaume, Doug Gwyn, Ken'ichi Handa,
906 Chris Hanson, K. Shane Hartman, John Heidemann, Markus Heritsch, Karl
907 Heuer, Manabu Higashida, Anders Holst, Kurt Hornik, Tom Houlder, Lars
908 Ingebrigtsen, Andrew Innes, Michael K. Johnson, Kyle Jones, Tomoji
909 Kagatani, Brewster Kahle, David Kaufman, Henry Kautz, Howard Kaye,
910 Michael Kifer, Richard King, Larry K. Kolodney, Robert Krawitz,
911 Sebastian Kremer, Geoff Kuenning, David K@aa gedal, Daniel LaLiberte,
912 Aaron Larson, James R. Larus, Frederic Lepied, Lars Lindberg, Eric
913 Ludlam, Neil M. Mager, Ken Manheimer, Bill Mann, Brian Marick, Simon
914 Marshall, Bengt Martensson, Charlie Martin, Thomas May, Roland McGrath,
915 David Megginson, Wayne Mesard, Richard Mlynarik, Keith Moore, Erik
916 Naggum, Thomas Neumann, Mike Newton, Jurgen Nickelsen, Jeff Norden,
917 Andrew Norman, Jeff Peck, Damon Anton Permezel, Tom Perrine, Jens
918 Petersen, Daniel Pfeiffer, Fred Pierresteguy, Christian Plaunt,
919 Francesco A. Potorti, Michael D. Prange, Ashwin Ram, Eric S. Raymond,
920 Paul Reilly, Edward M. Reingold, Rob Riepel, Roland B. Roberts, John
921 Robinson, Danny Roozendaal, William Rosenblatt, Guillermo J. Rozas, Ivar
922 Rummelhoff, Wolfgang Rupprecht, James B. Salem, Masahiko Sato, William
923 Schelter, Ralph Schleicher, Gregor Schmid, Michael Schmidt, Ronald
924 S. Schnell, Philippe Schnoebelen, Stephen Schoef, Randal Schwartz,
925 Manuel Serrano, Stanislav Shalunov, Mark Shapiro, Richard Sharman, Olin
926 Shivers, Espen Skoglund, Rick Sladkey, Lynn Slater, Chris Smith, David
927 Smith, Paul D. Smith, William Sommerfeld, Michael Staats, Sam Steingold,
928 Ake Stenhoff, Peter Stephenson, Jonathan Stigelman, Steve Strassman,
929 Jens T. Berger Thielemann, Spencer Thomas, Jim Thompson, Masanobu Umeda,
930 Neil W. Van Dyke, Ulrik Vieth, Geoffrey Voelker, Johan Vromans, Barry
931 Warsaw, Morten Welinder, Joseph Brian Wells, Rodney Whitby, Ed
932 Wilkinson, Mike Williams, Steven A. Wood, Dale R. Worley, Felix
933 S. T. Wu, Tom Wurgler, Eli Zaretskii, Jamie Zawinski, Ian T. Zimmermann,
934 Reto Zimmermann, and Neal Ziring.
935 @end iftex
936
937 @node Copying, GNU Free Documentation License, Distrib, Top
938 @unnumbered GNU GENERAL PUBLIC LICENSE
939 @center Version 2, June 1991
940
941 @display
942 Copyright @copyright{} 1989, 1991 Free Software Foundation, Inc.
943 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
944
945 Everyone is permitted to copy and distribute verbatim copies
946 of this license document, but changing it is not allowed.
947 @end display
948
949 @unnumberedsec Preamble
950
951 The licenses for most software are designed to take away your
952 freedom to share and change it. By contrast, the GNU General Public
953 License is intended to guarantee your freedom to share and change free
954 software---to make sure the software is free for all its users. This
955 General Public License applies to most of the Free Software
956 Foundation's software and to any other program whose authors commit to
957 using it. (Some other Free Software Foundation software is covered by
958 the GNU Library General Public License instead.) You can apply it to
959 your programs, too.
960
961 When we speak of free software, we are referring to freedom, not
962 price. Our General Public Licenses are designed to make sure that you
963 have the freedom to distribute copies of free software (and charge for
964 this service if you wish), that you receive source code or can get it
965 if you want it, that you can change the software or use pieces of it
966 in new free programs; and that you know you can do these things.
967
968 To protect your rights, we need to make restrictions that forbid
969 anyone to deny you these rights or to ask you to surrender the rights.
970 These restrictions translate to certain responsibilities for you if you
971 distribute copies of the software, or if you modify it.
972
973 For example, if you distribute copies of such a program, whether
974 gratis or for a fee, you must give the recipients all the rights that
975 you have. You must make sure that they, too, receive or can get the
976 source code. And you must show them these terms so they know their
977 rights.
978
979 We protect your rights with two steps: (1) copyright the software, and
980 (2) offer you this license which gives you legal permission to copy,
981 distribute and/or modify the software.
982
983 Also, for each author's protection and ours, we want to make certain
984 that everyone understands that there is no warranty for this free
985 software. If the software is modified by someone else and passed on, we
986 want its recipients to know that what they have is not the original, so
987 that any problems introduced by others will not reflect on the original
988 authors' reputations.
989
990 Finally, any free program is threatened constantly by software
991 patents. We wish to avoid the danger that redistributors of a free
992 program will individually obtain patent licenses, in effect making the
993 program proprietary. To prevent this, we have made it clear that any
994 patent must be licensed for everyone's free use or not licensed at all.
995
996 The precise terms and conditions for copying, distribution and
997 modification follow.
998
999 @iftex
1000 @unnumberedsec TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
1001 @end iftex
1002 @ifinfo
1003 @center TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
1004 @end ifinfo
1005
1006 @enumerate 0
1007 @item
1008 This License applies to any program or other work which contains
1009 a notice placed by the copyright holder saying it may be distributed
1010 under the terms of this General Public License. The ``Program'', below,
1011 refers to any such program or work, and a ``work based on the Program''
1012 means either the Program or any derivative work under copyright law:
1013 that is to say, a work containing the Program or a portion of it,
1014 either verbatim or with modifications and/or translated into another
1015 language. (Hereinafter, translation is included without limitation in
1016 the term ``modification''.) Each licensee is addressed as ``you''.
1017
1018 Activities other than copying, distribution and modification are not
1019 covered by this License; they are outside its scope. The act of
1020 running the Program is not restricted, and the output from the Program
1021 is covered only if its contents constitute a work based on the
1022 Program (independent of having been made by running the Program).
1023 Whether that is true depends on what the Program does.
1024
1025 @item
1026 You may copy and distribute verbatim copies of the Program's
1027 source code as you receive it, in any medium, provided that you
1028 conspicuously and appropriately publish on each copy an appropriate
1029 copyright notice and disclaimer of warranty; keep intact all the
1030 notices that refer to this License and to the absence of any warranty;
1031 and give any other recipients of the Program a copy of this License
1032 along with the Program.
1033
1034 You may charge a fee for the physical act of transferring a copy, and
1035 you may at your option offer warranty protection in exchange for a fee.
1036
1037 @item
1038 You may modify your copy or copies of the Program or any portion
1039 of it, thus forming a work based on the Program, and copy and
1040 distribute such modifications or work under the terms of Section 1
1041 above, provided that you also meet all of these conditions:
1042
1043 @enumerate a
1044 @item
1045 You must cause the modified files to carry prominent notices
1046 stating that you changed the files and the date of any change.
1047
1048 @item
1049 You must cause any work that you distribute or publish, that in
1050 whole or in part contains or is derived from the Program or any
1051 part thereof, to be licensed as a whole at no charge to all third
1052 parties under the terms of this License.
1053
1054 @item
1055 If the modified program normally reads commands interactively
1056 when run, you must cause it, when started running for such
1057 interactive use in the most ordinary way, to print or display an
1058 announcement including an appropriate copyright notice and a
1059 notice that there is no warranty (or else, saying that you provide
1060 a warranty) and that users may redistribute the program under
1061 these conditions, and telling the user how to view a copy of this
1062 License. (Exception: if the Program itself is interactive but
1063 does not normally print such an announcement, your work based on
1064 the Program is not required to print an announcement.)
1065 @end enumerate
1066
1067 These requirements apply to the modified work as a whole. If
1068 identifiable sections of that work are not derived from the Program,
1069 and can be reasonably considered independent and separate works in
1070 themselves, then this License, and its terms, do not apply to those
1071 sections when you distribute them as separate works. But when you
1072 distribute the same sections as part of a whole which is a work based
1073 on the Program, the distribution of the whole must be on the terms of
1074 this License, whose permissions for other licensees extend to the
1075 entire whole, and thus to each and every part regardless of who wrote it.
1076
1077 Thus, it is not the intent of this section to claim rights or contest
1078 your rights to work written entirely by you; rather, the intent is to
1079 exercise the right to control the distribution of derivative or
1080 collective works based on the Program.
1081
1082 In addition, mere aggregation of another work not based on the Program
1083 with the Program (or with a work based on the Program) on a volume of
1084 a storage or distribution medium does not bring the other work under
1085 the scope of this License.
1086
1087 @item
1088 You may copy and distribute the Program (or a work based on it,
1089 under Section 2) in object code or executable form under the terms of
1090 Sections 1 and 2 above provided that you also do one of the following:
1091
1092 @enumerate a
1093 @item
1094 Accompany it with the complete corresponding machine-readable
1095 source code, which must be distributed under the terms of Sections
1096 1 and 2 above on a medium customarily used for software interchange; or,
1097
1098 @item
1099 Accompany it with a written offer, valid for at least three
1100 years, to give any third party, for a charge no more than your
1101 cost of physically performing source distribution, a complete
1102 machine-readable copy of the corresponding source code, to be
1103 distributed under the terms of Sections 1 and 2 above on a medium
1104 customarily used for software interchange; or,
1105
1106 @item
1107 Accompany it with the information you received as to the offer
1108 to distribute corresponding source code. (This alternative is
1109 allowed only for noncommercial distribution and only if you
1110 received the program in object code or executable form with such
1111 an offer, in accord with Subsection b above.)
1112 @end enumerate
1113
1114 The source code for a work means the preferred form of the work for
1115 making modifications to it. For an executable work, complete source
1116 code means all the source code for all modules it contains, plus any
1117 associated interface definition files, plus the scripts used to
1118 control compilation and installation of the executable. However, as a
1119 special exception, the source code distributed need not include
1120 anything that is normally distributed (in either source or binary
1121 form) with the major components (compiler, kernel, and so on) of the
1122 operating system on which the executable runs, unless that component
1123 itself accompanies the executable.
1124
1125 If distribution of executable or object code is made by offering
1126 access to copy from a designated place, then offering equivalent
1127 access to copy the source code from the same place counts as
1128 distribution of the source code, even though third parties are not
1129 compelled to copy the source along with the object code.
1130
1131 @item
1132 You may not copy, modify, sublicense, or distribute the Program
1133 except as expressly provided under this License. Any attempt
1134 otherwise to copy, modify, sublicense or distribute the Program is
1135 void, and will automatically terminate your rights under this License.
1136 However, parties who have received copies, or rights, from you under
1137 this License will not have their licenses terminated so long as such
1138 parties remain in full compliance.
1139
1140 @item
1141 You are not required to accept this License, since you have not
1142 signed it. However, nothing else grants you permission to modify or
1143 distribute the Program or its derivative works. These actions are
1144 prohibited by law if you do not accept this License. Therefore, by
1145 modifying or distributing the Program (or any work based on the
1146 Program), you indicate your acceptance of this License to do so, and
1147 all its terms and conditions for copying, distributing or modifying
1148 the Program or works based on it.
1149
1150 @item
1151 Each time you redistribute the Program (or any work based on the
1152 Program), the recipient automatically receives a license from the
1153 original licensor to copy, distribute or modify the Program subject to
1154 these terms and conditions. You may not impose any further
1155 restrictions on the recipients' exercise of the rights granted herein.
1156 You are not responsible for enforcing compliance by third parties to
1157 this License.
1158
1159 @item
1160 If, as a consequence of a court judgment or allegation of patent
1161 infringement or for any other reason (not limited to patent issues),
1162 conditions are imposed on you (whether by court order, agreement or
1163 otherwise) that contradict the conditions of this License, they do not
1164 excuse you from the conditions of this License. If you cannot
1165 distribute so as to satisfy simultaneously your obligations under this
1166 License and any other pertinent obligations, then as a consequence you
1167 may not distribute the Program at all. For example, if a patent
1168 license would not permit royalty-free redistribution of the Program by
1169 all those who receive copies directly or indirectly through you, then
1170 the only way you could satisfy both it and this License would be to
1171 refrain entirely from distribution of the Program.
1172
1173 If any portion of this section is held invalid or unenforceable under
1174 any particular circumstance, the balance of the section is intended to
1175 apply and the section as a whole is intended to apply in other
1176 circumstances.
1177
1178 It is not the purpose of this section to induce you to infringe any
1179 patents or other property right claims or to contest validity of any
1180 such claims; this section has the sole purpose of protecting the
1181 integrity of the free software distribution system, which is
1182 implemented by public license practices. Many people have made
1183 generous contributions to the wide range of software distributed
1184 through that system in reliance on consistent application of that
1185 system; it is up to the author/donor to decide if he or she is willing
1186 to distribute software through any other system and a licensee cannot
1187 impose that choice.
1188
1189 This section is intended to make thoroughly clear what is believed to
1190 be a consequence of the rest of this License.
1191
1192 @item
1193 If the distribution and/or use of the Program is restricted in
1194 certain countries either by patents or by copyrighted interfaces, the
1195 original copyright holder who places the Program under this License
1196 may add an explicit geographical distribution limitation excluding
1197 those countries, so that distribution is permitted only in or among
1198 countries not thus excluded. In such case, this License incorporates
1199 the limitation as if written in the body of this License.
1200
1201 @item
1202 The Free Software Foundation may publish revised and/or new versions
1203 of the General Public License from time to time. Such new versions will
1204 be similar in spirit to the present version, but may differ in detail to
1205 address new problems or concerns.
1206
1207 Each version is given a distinguishing version number. If the Program
1208 specifies a version number of this License which applies to it and ``any
1209 later version'', you have the option of following the terms and conditions
1210 either of that version or of any later version published by the Free
1211 Software Foundation. If the Program does not specify a version number of
1212 this License, you may choose any version ever published by the Free Software
1213 Foundation.
1214
1215 @item
1216 If you wish to incorporate parts of the Program into other free
1217 programs whose distribution conditions are different, write to the author
1218 to ask for permission. For software which is copyrighted by the Free
1219 Software Foundation, write to the Free Software Foundation; we sometimes
1220 make exceptions for this. Our decision will be guided by the two goals
1221 of preserving the free status of all derivatives of our free software and
1222 of promoting the sharing and reuse of software generally.
1223
1224 @iftex
1225 @heading NO WARRANTY
1226 @end iftex
1227 @ifinfo
1228 @center NO WARRANTY
1229 @end ifinfo
1230
1231 @item
1232 BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
1233 FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW@. EXCEPT WHEN
1234 OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
1235 PROVIDE THE PROGRAM ``AS IS'' WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
1236 OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
1237 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE@. THE ENTIRE RISK AS
1238 TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU@. SHOULD THE
1239 PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
1240 REPAIR OR CORRECTION.
1241
1242 @item
1243 IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
1244 WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
1245 REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
1246 INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
1247 OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
1248 TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
1249 YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
1250 PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
1251 POSSIBILITY OF SUCH DAMAGES.
1252 @end enumerate
1253
1254 @iftex
1255 @heading END OF TERMS AND CONDITIONS
1256 @end iftex
1257 @ifinfo
1258 @center END OF TERMS AND CONDITIONS
1259 @end ifinfo
1260
1261 @page
1262 @unnumberedsec How to Apply These Terms to Your New Programs
1263
1264 If you develop a new program, and you want it to be of the greatest
1265 possible use to the public, the best way to achieve this is to make it
1266 free software which everyone can redistribute and change under these terms.
1267
1268 To do so, attach the following notices to the program. It is safest
1269 to attach them to the start of each source file to most effectively
1270 convey the exclusion of warranty; and each file should have at least
1271 the ``copyright'' line and a pointer to where the full notice is found.
1272
1273 @smallexample
1274 @var{one line to give the program's name and an idea of what it does.}
1275 Copyright (C) 19@var{yy} @var{name of author}
1276
1277 This program is free software; you can redistribute it and/or
1278 modify it under the terms of the GNU General Public License
1279 as published by the Free Software Foundation; either version 2
1280 of the License, or (at your option) any later version.
1281
1282 This program is distributed in the hope that it will be useful,
1283 but WITHOUT ANY WARRANTY; without even the implied warranty of
1284 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE@. See the
1285 GNU General Public License for more details.
1286
1287 You should have received a copy of the GNU General Public License along
1288 with this program; if not, write to the Free Software Foundation, Inc.,
1289 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
1290 @end smallexample
1291
1292 Also add information on how to contact you by electronic and paper mail.
1293
1294 If the program is interactive, make it output a short notice like this
1295 when it starts in an interactive mode:
1296
1297 @smallexample
1298 Gnomovision version 69, Copyright (C) 20@var{yy} @var{name of author}
1299 Gnomovision comes with ABSOLUTELY NO WARRANTY; for details
1300 type `show w'. This is free software, and you are welcome
1301 to redistribute it under certain conditions; type `show c'
1302 for details.
1303 @end smallexample
1304
1305 The hypothetical commands @samp{show w} and @samp{show c} should show
1306 the appropriate parts of the General Public License. Of course, the
1307 commands you use may be called something other than @samp{show w} and
1308 @samp{show c}; they could even be mouse-clicks or menu items---whatever
1309 suits your program.
1310
1311 You should also get your employer (if you work as a programmer) or your
1312 school, if any, to sign a ``copyright disclaimer'' for the program, if
1313 necessary. Here is a sample; alter the names:
1314
1315 @smallexample
1316 @group
1317 Yoyodyne, Inc., hereby disclaims all copyright
1318 interest in the program `Gnomovision'
1319 (which makes passes at compilers) written
1320 by James Hacker.
1321
1322 @var{signature of Ty Coon}, 1 April 1989
1323 Ty Coon, President of Vice
1324 @end group
1325 @end smallexample
1326
1327 This General Public License does not permit incorporating your program into
1328 proprietary programs. If your program is a subroutine library, you may
1329 consider it more useful to permit linking proprietary applications with the
1330 library. If this is what you want to do, use the GNU Library General
1331 Public License instead of this License.
1332
1333 @include doclicense.texi
1334
1335 @node Intro, Glossary, GNU Free Documentation License, Top
1336 @unnumbered Introduction
1337
1338 You are reading about GNU Emacs, the GNU incarnation of the advanced,
1339 self-documenting, customizable, extensible real-time display editor Emacs.
1340 (The `G' in `GNU' is not silent.)
1341
1342 We say that Emacs is a @dfn{display} editor because normally the text
1343 being edited is visible on the screen and is updated automatically as you
1344 type your commands. @xref{Screen,Display}.
1345
1346 We call it a @dfn{real-time} editor because the display is updated very
1347 frequently, usually after each character or pair of characters you
1348 type. This minimizes the amount of information you must keep in your
1349 head as you edit. @xref{Basic,Real-time,Basic Editing}.
1350
1351 We call Emacs advanced because it provides facilities that go beyond
1352 simple insertion and deletion: controlling subprocesses; automatic
1353 indentation of programs; viewing two or more files at once; editing
1354 formatted text; and dealing in terms of characters, words, lines,
1355 sentences, paragraphs, and pages, as well as expressions and comments in
1356 several different programming languages.
1357
1358 @dfn{Self-documenting} means that at any time you can type a special
1359 character, @kbd{Control-h}, to find out what your options are. You can
1360 also use it to find out what any command does, or to find all the commands
1361 that pertain to a topic. @xref{Help}.
1362
1363 @dfn{Customizable} means that you can change the definitions of Emacs
1364 commands in little ways. For example, if you use a programming language in
1365 which comments start with @samp{<**} and end with @samp{**>}, you can tell
1366 the Emacs comment manipulation commands to use those strings
1367 (@pxref{Comments}). Another sort of customization is rearrangement of the
1368 command set. For example, if you prefer the four basic cursor motion
1369 commands (up, down, left and right) on keys in a diamond pattern on the
1370 keyboard, you can rebind the keys that way. @xref{Customization}.
1371
1372 @dfn{Extensible} means that you can go beyond simple customization and
1373 write entirely new commands, programs in the Lisp language to be run by
1374 Emacs's own Lisp interpreter. Emacs is an ``on-line extensible''
1375 system, which means that it is divided into many functions that call
1376 each other, any of which can be redefined in the middle of an editing
1377 session. Almost any part of Emacs can be replaced without making a
1378 separate copy of all of Emacs. Most of the editing commands of Emacs
1379 are written in Lisp already; the few exceptions could have been written
1380 in Lisp but are written in C for efficiency. Although only a programmer
1381 can write an extension, anybody can use it afterward. If you want to
1382 learn Emacs Lisp programming, we recommend the @cite{Introduction to
1383 Emacs Lisp} by Robert J. Chassell, also published by the Free Software
1384 Foundation.
1385
1386 When run under the X Window System, Emacs provides its own menus and
1387 convenient bindings to mouse buttons. But Emacs can provide many of the
1388 benefits of a window system on a text-only terminal. For instance, you
1389 can look at or edit several files at once, move text between files, and
1390 edit files while running shell commands.
1391
1392 @include screen.texi
1393 @include commands.texi
1394 @include entering.texi
1395 @include basic.texi
1396 @include mini.texi
1397 @include m-x.texi
1398 @include help.texi
1399 @include mark.texi
1400 @include killing.texi
1401 @include regs.texi
1402 @include display.texi
1403 @include search.texi
1404 @include fixit.texi
1405 @include files.texi
1406 @include buffers.texi
1407 @include windows.texi
1408 @include frames.texi
1409 @include mule.texi
1410 @include major.texi
1411 @include indent.texi
1412 @include text.texi
1413 @include programs.texi
1414 @include building.texi
1415 @include abbrevs.texi
1416 @include picture.texi
1417 @include sending.texi
1418 @include rmail.texi
1419 @include dired.texi
1420 @include calendar.texi
1421 @include misc.texi
1422 @include custom.texi
1423 @include trouble.texi
1424 @include cmdargs.texi
1425
1426 @include anti.texi
1427 @include macos.texi
1428 @include msdog.texi
1429 @include gnu.texi
1430 @include glossary.texi
1431 @ifinfo
1432 @include ack.texi
1433 @end ifinfo
1434
1435 @node Key Index, Command Index, Glossary, Top
1436 @unnumbered Key (Character) Index
1437 @printindex ky
1438
1439 @node Command Index, Variable Index, Key Index, Top
1440 @unnumbered Command and Function Index
1441 @printindex fn
1442
1443 @node Variable Index, Concept Index, Command Index, Top
1444 @unnumbered Variable Index
1445 @printindex vr
1446
1447 @node Concept Index, Acknowledgments, Variable Index, Top
1448 @unnumbered Concept Index
1449 @printindex cp
1450
1451 @summarycontents
1452 @contents
1453 @bye
1454