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1 This is ../info/efaq, produced by makeinfo version 4.2 from faq.texi.
2
3 INFO-DIR-SECTION Emacs
4 START-INFO-DIR-ENTRY
5 * Emacs FAQ: (efaq).    Frequently Asked Questions about Emacs.
6 END-INFO-DIR-ENTRY
7
8    Copyright 1994,1995,1996,1997,1998,1999,2000 Reuven M. Lerner
9 Copyright 1992,1993 Steven Byrnes
10 Copyright 1990,1991,1992 Joseph Brian Wells
11 This list of frequently asked questions about GNU Emacs with answers
12 ("FAQ") may be translated into other languages, transformed into other
13 formats (e.g. Texinfo, Info, WWW, WAIS), and updated with new
14 information.
15
16    The same conditions apply to any derivative of the FAQ as apply to
17 the FAQ itself.  Every copy of the FAQ must include this notice or an
18 approved translation, information on who is currently maintaining the
19 FAQ and how to contact them (including their e-mail address), and
20 information on where the latest version of the FAQ is archived
21 (including FTP information).
22
23    The FAQ may be copied and redistributed under these conditions,
24 except that the FAQ may not be embedded in a larger literary work
25 unless that work itself allows free copying and redistribution.
26
27    [This version has been somewhat edited from the last-posted version
28 (as of August 1999) for inclusion in the Emacs distribution.]
29
30 
31 File: efaq,  Node: Terminal setup code works after Emacs has begun,  Next: Using function keys under X,  Prev: Invalid prefix characters,  Up: Key bindings
32
33 Why doesn't this [terminal or window-system setup] code work in my `.emacs' file, but it works just fine after Emacs starts up?
34 ===============================================================================================================================
35
36    During startup, Emacs initializes itself according to a given
37 code/file order.  If some of the code executed in your `.emacs' file
38 needs to be postponed until the initial terminal or window-system setup
39 code has been executed but is not, then you will experience this
40 problem (this code/file execution order is not enforced after startup).
41
42    To postpone the execution of Emacs Lisp code until after terminal or
43 window-system setup, treat the code as a "lambda list" and set the
44 value of either the `term-setup-hook' or `window-setup-hook' variable
45 to this lambda function.  For example,
46
47      (add-hook 'term-setup-hook
48                (lambda ()
49                 (when (string-match "\\`vt220" (or (getenv "TERM") ""))
50                   ;; Make vt220's "Do" key behave like M-x:
51                   (global-set-key [do] 'execute-extended-command))))
52
53    For information on what Emacs does every time it is started, see the
54 `lisp/startup.el' file.
55
56 
57 File: efaq,  Node: Using function keys under X,  Next: Working with function and arrow keys,  Prev: Terminal setup code works after Emacs has begun,  Up: Key bindings
58
59 How do I use function keys under X?
60 ===================================
61
62    With Emacs 19, functions keys under X are bound like any other key.
63 *Note Binding keys to commands::, for details.
64
65 
66 File: efaq,  Node: Working with function and arrow keys,  Next: X key translations for Emacs,  Prev: Using function keys under X,  Up: Key bindings
67
68 How do I tell what characters or symbols my function or arrow keys emit?
69 ========================================================================
70
71    Type `C-h c' then the function or arrow keys.  The command will
72 return either a function key symbol or character sequence (see the
73 Emacs on-line documentation for an explanation).  This works for other
74 keys as well.
75
76 
77 File: efaq,  Node: X key translations for Emacs,  Next: Handling C-s and C-q with flow control,  Prev: Working with function and arrow keys,  Up: Key bindings
78
79 How do I set the X key "translations" for Emacs?
80 ================================================
81
82    Emacs is not written using the Xt library by default, so there are no
83 "translations" to be set.  (We aren't sure how to set such translations
84 if you do build Emacs with Xt; please let us know if you've done this!)
85
86    The only way to affect the behavior of keys within Emacs is through
87 `xmodmap' (outside Emacs) or `define-key' (inside Emacs).  The
88 `define-key' command should be used in conjunction with the
89 `function-key-map' map.  For instance,
90
91      (define-key function-key-map [M-<TAB>] [?\M-\t])
92
93 defines the `M-<TAB>' key sequence.
94
95 
96 File: efaq,  Node: Handling C-s and C-q with flow control,  Next: Binding C-s and C-q,  Prev: X key translations for Emacs,  Up: Key bindings
97
98 How do I handle `C-s' and `C-q' being used for flow control?
99 ============================================================
100
101    `C-s' and `C-q' are used in the XON/XOFF flow control protocol.
102 This messes things up when you're using Emacs over a serial line,
103 because Emacs binds these keys to commands by default.  Because Emacs
104 won't honor them as flow control characters, too many of these
105 characters are not passed on and overwhelm output buffers.  Sometimes,
106 intermediate software using XON/XOFF flow control will prevent Emacs
107 from ever seeing `C-s' and `C-q'.
108
109    Possible solutions:
110
111    * Disable the use of `C-s' and `C-q' for flow control.
112
113      You need to determine the cause of the flow control.
114
115         - your terminal
116
117           Your terminal may use XON/XOFF flow control to have time to
118           display all the characters it receives.  For example, VT
119           series terminals do this.  It may be possible to turn this
120           off from a setup menu.  For example, on a VT220 you may
121           select "No XOFF" in the setup menu.  This is also true for
122           some terminal emulation programs on PCs.
123
124           When you turn off flow control at the terminal, you will also
125           need to turn it off at the other end, which might be at the
126           computer you are logged in to or at some terminal server in
127           between.
128
129           If you turn off flow control, characters may be lost; using a
130           printer connected to the terminal may fail.  You may be able
131           to get around this problem by modifying the `termcap' entry
132           for your terminal to include extra NUL padding characters.
133
134         - a modem
135
136           If you are using a dialup connection, the modems may be using
137           XON/XOFF flow control.  It's not clear how to get around this.
138
139         - a router or terminal server
140
141           Some network box between the terminal and your computer may
142           be using XON/XOFF flow control.  It may be possible to make
143           it use some other kind of flow control.  You will probably
144           have to ask your local network experts for help with this.
145
146         - `tty' and/or `pty' devices
147
148           If your connection to Emacs goes through multiple `tty' and/or
149           `pty' devices, they may be using XON/XOFF flow control even
150           when it is not necessary.
151
152           Eirik Fuller <eirik@theory.tn.cornell.edu> writes:
153
154                Some versions of `rlogin' (and possibly `telnet') do not
155                pass flow control characters to the remote system to
156                which they connect.  On such systems, Emacs on the
157                remote system cannot disable flow control on the local
158                system.  Sometimes `rlogin -8' will avoid this problem.
159
160                One way to cure this is to disable flow control on the
161                local host (the one running `rlogin', not the one
162                running `rlogind') using the `stty' command, before
163                starting the `rlogin' process.  On many systems, `stty
164                start u stop u' will do this.
165
166                Some versions of `tcsh' will prevent even this from
167                working.  One way around this is to start another shell
168                before starting rlogin, and issue the `stty' command to
169                disable flow control from that shell.
170
171           Use `stty -ixon' instead of `stty start u stop u' on some
172           systems.
173
174
175    * Make Emacs speak the XON/XOFF flow control protocol.
176
177      You can make Emacs treat `C-s' and `C-q' as flow control
178      characters by evaluating the form
179
180           (enable-flow-control)
181
182      to unconditionally enable flow control or
183
184           (enable-flow-control-on "vt100" "h19")
185
186      (using your terminal names instead of `vt100' or `h19') to enable
187      selectively.  These commands will automatically swap `C-s' and
188      `C-q' to `C-\' and `C-^'.  Variables can be used to change the
189      default swap keys (`flow-control-c-s-replacement' and
190      `flow-control-c-q-replacement').
191
192      If you are fixing this for yourself, simply put the form in your
193      `.emacs' file.  If you are fixing this for your entire site, the
194      best place to put it is in the `site-lisp/site-start.el' file.
195      (Here `site-lisp' is actually a subdirectory of your Emacs
196      installation directory, typically `/usr/local/share/emacs'.)
197      Putting this form in `site-lisp/default.el' has the problem that
198      if the user's `.emacs' file has an error, this will prevent
199      `default.el' from being loaded and Emacs may be unusable for the
200      user, even for correcting their `.emacs' file (unless they're
201      smart enough to move it to another name).
202
203      `enable-flow-control' can be invoked interactively as well: `M-x
204      enable-flow-control <RET>'.
205
206
207    For further discussion of this issue, read the file `etc/PROBLEMS'
208 (in the Emacs source directory when you unpack the Emacs distribution).
209
210 
211 File: efaq,  Node: Binding C-s and C-q,  Next: Backspace invokes help,  Prev: Handling C-s and C-q with flow control,  Up: Key bindings
212
213 How do I bind `C-s' and `C-q' (or any key) if these keys are filtered out?
214 ==========================================================================
215
216    To bind `C-s' and `C-q', use either `enable-flow-control' or
217 `enable-flow-control-on'.  *Note Handling C-s and C-q with flow
218 control::, for usage and implementation details.
219
220    To bind other keys, use `keyboard-translate'.  *Note Swapping
221 keys::, for usage details.  To do this for an entire site, you should
222 swap the keys in `site-lisp/site-start.el'.  *Note Handling C-s and C-q
223 with flow control::, for an explanation of why `site-lisp/default.el'
224 should not be used.
225
226    * If you do this for an entire site, the users will be confused by
227      the disparity between what the documentation says and how Emacs
228      actually behaves.
229
230
231 
232 File: efaq,  Node: Backspace invokes help,  Next: stty and Backspace key,  Prev: Binding C-s and C-q,  Up: Key bindings
233
234 Why does the <Backspace> key invoke help?
235 =========================================
236
237    The <Backspace> key (on most keyboards) generates ASCII code 8.
238 `C-h' sends the same code.  In Emacs by default `C-h' invokes
239 help-command.  This is intended to be easy to remember since the first
240 letter of `help' is `h'.  The easiest solution to this problem is to
241 use `C-h' (and <Backspace>) for help and <DEL> (the <Delete> key) for
242 deleting the previous character.
243
244    For many people this solution may be problematic:
245
246    * They normally use <Backspace> outside of Emacs for deleting the
247      previous character.  This can be solved by making <DEL> the command
248      for deleting the previous character outside of Emacs.  On many Unix
249      systems, this command will remap <DEL>:
250
251           stty erase `^?'
252
253    * The user may prefer the <Backspace> key for deleting the previous
254      character because it is more conveniently located on their
255      keyboard or because they don't even have a separate <Delete> key.
256      In this case, the <Backspace> key should be made to behave like
257      <Delete>.  There are several methods.
258
259         - Some terminals (e.g., VT3## terminals) and terminal emulators
260           (e.g., TeraTerm) allow the character generated by the
261           <Backspace> key to be changed from a setup menu.
262
263         - You may be able to get a keyboard that is completely
264           programmable, or a terminal emulator that supports remapping
265           of any key to any other key.
266
267         - With Emacs 21.1 and later, you can control the effect of the
268           <Backspace> and <Delete> keys, on both dumb terminals and a
269           windowed displays, by customizing the option
270           `normal-erase-is-backspace-mode', or by invoking `M-x
271           normal-erase-is-backspace'.  See the documentation of these
272           symbols (*note Emacs Lisp documentation::) for more info.
273
274         - It is possible to swap the <Backspace> and <DEL> keys inside
275           Emacs:
276
277                (keyboard-translate ?\C-h ?\C-?)
278
279           This is the recommended method of forcing <Backspace> to act
280           as <DEL>, because it works even in modes which bind <DEL> to
281           something other than `delete-backward-char'.
282
283           Similarly, you could remap <DEL> to act as `C-d', which by
284           default deletes forward:
285
286                (keyboard-translate ?\C-? ?\C-d)
287
288           *Note Swapping keys::, for further details about
289           `keyboard-translate'.
290
291         - Another approach is to switch key bindings and put help on
292           `C-x h' instead:
293
294                (global-set-key "\C-h" 'delete-backward-char)
295                
296                ;;; overrides mark-whole-buffer
297                (global-set-key "\C-xh" 'help-command)
298
299           This method is not recommended, though: it only solves the
300           problem for those modes which bind <DEL> to
301           `delete-backward-char'.  Modes which bind <DEL> to something
302           else, such as `view-mode', will not work as you expect when
303           you press the <Backspace> key.  For this reason, we recommend
304           the the `keyboard-translate' method, shown above.
305
306           Other popular key bindings for help are `M-?' and `C-x ?'.
307
308      Don't try to bind <DEL> to `help-command', because there are many
309      modes that have local bindings of <DEL> that will interfere.
310
311
312    When Emacs 21 or later runs on a windowed display, it binds the
313 <Delete> key to a command which deletes the character at point, to make
314 Emacs more consistent with keyboard operation on these systems.
315
316    For more information about troubleshooting this problem, see *Note
317 If <DEL> Fails to Delete: (emacs)DEL Does Not Delete.
318
319 
320 File: efaq,  Node: stty and Backspace key,  Next: Swapping keys,  Prev: Backspace invokes help,  Up: Key bindings
321
322 Why doesn't Emacs look at the `stty' settings for <Backspace> vs. <Delete>?
323 ===========================================================================
324
325    Good question!
326
327 
328 File: efaq,  Node: Swapping keys,  Next: Producing C-XXX with the keyboard,  Prev: stty and Backspace key,  Up: Key bindings
329
330 How do I swap two keys?
331 =======================
332
333    In Emacs 19, you can swap two keys (or key sequences) by using the
334 `keyboard-translate' function.  For example, to turn `C-h' into <DEL>
335 and <DEL> to `C-h', use
336
337      (keyboard-translate ?\C-h ?\C-?)  ; translate `C-h' to DEL
338      (keyboard-translate ?\C-? ?\C-h)  ; translate DEL to `C-h'.
339
340 The first key sequence of the pair after the function identifies what is
341 produced by the keyboard; the second, what is matched for in the
342 keymaps.
343
344    Keyboard translations are not the same as key bindings in keymaps.
345 Emacs contains numerous keymaps that apply in different situations, but
346 there is only one set of keyboard translations, and it applies to every
347 character that Emacs reads from the terminal.  Keyboard translations
348 take place at the lowest level of input processing; the keys that are
349 looked up in keymaps contain the characters that result from keyboard
350 translation.
351
352    *note Keyboard Translations: (emacs)Keyboard Translations.
353
354 
355 File: efaq,  Node: Producing C-XXX with the keyboard,  Next: No Meta key,  Prev: Swapping keys,  Up: Key bindings
356
357 How do I produce C-XXX with my keyboard?
358 ========================================
359
360    On terminals (but not under X), some common "aliases" are:
361
362 `C-2'  or  `C-<SPC>'
363      `C-@'
364
365 `C-6'
366      `C-^'
367
368 `C-7'  or  `C-S--'
369      `C-_'
370
371 `C-4'
372      `C-\'
373
374 `C-5'
375      `C-]'
376
377 `C-/'
378      `C-?'
379
380    Often other aliases exist; use the `C-h c' command and try <CTRL>
381 with all of the digits on your keyboard to see what gets generated.
382 You can also try the `C-h w' command if you know the name of the
383 command.
384
385 
386 File: efaq,  Node: No Meta key,  Next: No Escape key,  Prev: Producing C-XXX with the keyboard,  Up: Key bindings
387
388 What if I don't have a <Meta> key?
389 ==================================
390
391    On many keyboards, the <Alt> key acts as <Meta>, so try it.
392
393    Instead of typing `M-a', you can type `<ESC> a'.  In fact, Emacs
394 converts `M-a' internally into `<ESC> a' anyway (depending on the value
395 of `meta-prefix-char').  Note that you press <Meta> and <a> together,
396 but with <ESC>, you press <ESC>, release it, and then press <a>.
397
398 
399 File: efaq,  Node: No Escape key,  Next: Compose Character,  Prev: No Meta key,  Up: Key bindings
400
401 What if I don't have an <Escape> key?
402 =====================================
403
404    Type `C-[' instead.  This should send ASCII code 27 just like an
405 Escape key would.  `C-3' may also work on some terminal (but not under
406 X).  For many terminals (notably DEC terminals) <F11> generates <ESC>.
407 If not, the following form can be used to bind it:
408
409      ;;; F11 is the documented ESC replacement on DEC terminals.
410      (define-key function-key-map [f11] [?\e])
411
412 
413 File: efaq,  Node: Compose Character,  Next: Binding combinations of modifiers and function keys,  Prev: No Escape key,  Up: Key bindings
414
415 Can I make my <Compose Character> key behave like a <Meta> key?
416 ===============================================================
417
418    On a dumb terminal such as a VT220, no.  It is rumored that certain
419 VT220 clones could have their <Compose> key configured this way.  If
420 you're using X, you might be able to do this with the `xmodmap' command.
421
422 
423 File: efaq,  Node: Binding combinations of modifiers and function keys,  Next: Meta key does not work in xterm,  Prev: Compose Character,  Up: Key bindings
424
425 How do I bind a combination of modifier key and function key?
426 =============================================================
427
428    With Emacs 19 and later, you can represent modified function keys in
429 vector format by adding prefixes to the function key symbol.  For
430 example (from the on-line documentation):
431
432      (global-set-key [?\C-x right] 'forward-page)
433
434 where `?\C-x' is the Lisp character constant for the character `C-x'.
435
436    You can use the modifier keys <Control>, <Meta>, <Hyper>, <Super>,
437 <Alt>, and <Shift> with function keys.  To represent these modifiers,
438 prepend the strings `C-', `M-', `H-', `s-', `A-', and `S-' to the
439 symbol name.  Here is how to make `H-M-RIGHT' move forward a word:
440
441      (global-set-key [H-M-right] 'forward-word)
442
443    * Not all modifiers are permitted in all situations.  <Hyper>,
444      <Super>, and <Alt> are not available on Unix character terminals.
445      Non-ASCII keys and mouse events (e.g. `C-=' and `Mouse-1') also
446      fall under this category.
447
448
449    *Note Binding keys to commands::, for general key binding
450 instructions.
451
452 
453 File: efaq,  Node: Meta key does not work in xterm,  Next: ExtendChar key does not work as Meta,  Prev: Binding combinations of modifiers and function keys,  Up: Key bindings
454
455 Why doesn't my <Meta> key work in an `xterm' window?
456 ====================================================
457
458    *note Single-Byte Character Set Support: (emacs)Single-Byte
459 Character Support.
460
461    If the advice in the Emacs manual fails, try all of these methods
462 before asking for further help:
463
464    * You may have big problems using `mwm' as your window manager.
465      (Does anyone know a good generic solution to allow the use of the
466      <Meta> key in Emacs with `mwm'?)
467
468    * For X11: Make sure it really is a <Meta> key.  Use `xev' to find
469      out what keysym your <Meta> key generates.  It should be either
470      `Meta_L' or `Meta_R'.  If it isn't, use `xmodmap' to fix the
471      situation.  If <Meta> does generate `Meta_L' or `Meta_R', but
472      `M-x' produces a non-ASCII character, put this in your
473      `~/.Xdefaults' file:
474
475            XTerm*eightBitInput:   false
476            XTerm*eightBitOutput:  true
477
478    * Make sure the `pty' the `xterm' is using is passing 8 bit
479      characters.  `stty -a' (or `stty everything') should show `cs8'
480      somewhere.  If it shows `cs7' instead, use `stty cs8 -istrip' (or
481      `stty pass8') to fix it.
482
483    * If there is an `rlogin' connection between `xterm' and Emacs, the
484      `-8' argument may need to be given to rlogin to make it pass all 8
485      bits of every character.
486
487    * If Emacs is running on Ultrix, it is reported that evaluating
488      `(set-input-mode t nil)' helps.
489
490    * If all else fails, you can make `xterm' generate `<ESC> W' when
491      you type `M-W', which is the same conversion Emacs would make if it
492      got the `M-W' anyway.  In X11R4, the following resource
493      specification will do this:
494
495           XTerm.VT100.EightBitInput: false
496
497      (This changes the behavior of the `insert-eight-bit' action.)
498
499      With older `xterm's, you can specify this behavior with a
500      translation:
501
502           XTerm.VT100.Translations: #override \
503             Meta<KeyPress>: string(0x1b) insert()
504
505      You might have to replace `Meta' with `Alt'.
506
507
508 
509 File: efaq,  Node: ExtendChar key does not work as Meta,  Prev: Meta key does not work in xterm,  Up: Key bindings
510
511 Why doesn't my <ExtendChar> key work as a <Meta> key under HP-UX 8.0 and 9.x?
512 =============================================================================
513
514    This is a result of an internationalization extension in X11R4 and
515 the fact that HP is now using this extension.  Emacs assumes that the
516 `XLookupString' function returns the same result regardless of the
517 <Meta> key state which is no longer necessarily true.  Until Emacs is
518 fixed, the temporary kludge is to run this command after each time the
519 X server is started but preferably before any xterm clients are:
520
521      xmodmap -e 'remove mod1 = Mode_switch'
522
523    This will disable the use of the extra keysyms systemwide, which may
524 be undesirable if you actually intend to use them.
525
526 
527 File: efaq,  Node: Alternate character sets,  Next: Mail and news,  Prev: Key bindings,  Up: Top
528
529 Alternate character sets
530 ************************
531
532 * Menu:
533
534 * Emacs does not display 8-bit characters::
535 * Inputting eight-bit characters::
536 * Kanji and Chinese characters::
537 * Right-to-left alphabets::
538
539 
540 File: efaq,  Node: Emacs does not display 8-bit characters,  Next: Inputting eight-bit characters,  Prev: Alternate character sets,  Up: Alternate character sets
541
542 How do I make Emacs display 8-bit characters?
543 =============================================
544
545    *note Single-byte Character Set Support: (emacs)Single-Byte
546 Character Support.  On a Unix, when Emacs runs on a text-only terminal
547 display or is invoked with `emacs -nw', you typically need to use
548 `set-terminal-coding-system' to tell Emacs what the terminal can
549 display, even after setting the language environment; otherwise
550 non-ASCII characters will display as `?'.  On other operating systems,
551 such as MS-DOS and MS-Windows, Emacs queries the OS about the character
552 set supported by the display, and sets up the required terminal coding
553 system automatically.
554
555 
556 File: efaq,  Node: Inputting eight-bit characters,  Next: Kanji and Chinese characters,  Prev: Emacs does not display 8-bit characters,  Up: Alternate character sets
557
558 How do I input eight-bit characters?
559 ====================================
560
561    Various methods are available for input of eight-bit characters.  See
562 *note Single-byte Character Set Support: (emacs)Single-Byte Character
563 Support.  For more sophisticated methods, *note Input Methods:
564 (emacs)Input Methods.
565
566 
567 File: efaq,  Node: Kanji and Chinese characters,  Next: Right-to-left alphabets,  Prev: Inputting eight-bit characters,  Up: Alternate character sets
568
569 Where can I get an Emacs that handles kanji, Chinese, or other Far-Eastern character sets?
570 ==========================================================================================
571
572    Emacs 20 and later includes many of the features of MULE, the
573 MULtilingual Enhancement to Emacs.  *Note Installing Emacs::, for
574 information on where to find and download the latest version of Emacs.
575
576 
577 File: efaq,  Node: Right-to-left alphabets,  Prev: Kanji and Chinese characters,  Up: Alternate character sets
578
579 Where is an Emacs that can handle Semitic (right-to-left) alphabets?
580 ====================================================================
581
582    Emacs 20 and later supports Hebrew characters (ISO 8859-8), but does
583 not yet support right-to-left character entry and display.
584
585    Joel M. Hoffman <joel@exc.com> has written a Lisp package called
586 `hebrew.el' that allows right-to-left editing of Hebrew.  It reportedly
587 works out of the box with Emacs 19, but requires patches for Emacs 18.
588 Write to Joel if you want the patches or package.
589
590    `hebrew.el' requires a Hebrew screen font, but no other hardware
591 support.  Joel has a screen font for PCs running MS-DOS or GNU/Linux.
592
593    You might also try to query archie for files named with `hebrew';
594 several ftp sites in Israel may also have the necessary files.
595
596 
597 File: efaq,  Node: Mail and news,  Next: Concept index,  Prev: Alternate character sets,  Up: Top
598
599 Mail and news
600 *************
601
602 * Menu:
603
604 * Changing the included text prefix::
605 * Saving a copy of outgoing mail::
606 * Expanding aliases when sending mail::
607 * Rmail thinks all messages are one big one::
608 * Sorting the messages in an Rmail folder::
609 * Rmail writes to /usr/spool/mail::
610 * Recovering mail files when Rmail munges them::
611 * Replying to the sender of a message::
612 * MIME with Emacs mail packages::
613 * Automatically starting a mail or news reader::
614 * Reading news with Emacs::
615 * Gnus does not work with NNTP::
616 * Viewing articles with embedded underlining::
617 * Saving a multi-part Gnus posting::
618 * Starting Gnus faster::
619 * Catching up in all newsgroups::
620 * Killing based on nonstandard headers::
621 * Removing flashing messages::
622 * Catch-up is slow in Gnus::
623 * Gnus hangs for a long time::
624 * Learning more about Gnus::
625
626 
627 File: efaq,  Node: Changing the included text prefix,  Next: Saving a copy of outgoing mail,  Prev: Mail and news,  Up: Mail and news
628
629 How do I change the included text prefix in mail/news followups?
630 ================================================================
631
632    If you read mail with Rmail or news with Gnus, set the variable
633 `mail-yank-prefix'.  For VM, set `vm-included-text-prefix'.  For mh-e,
634 set `mh-ins-buf-prefix'.
635
636    For fancier control of citations, use Supercite.  *Note Supercite::.
637
638    To prevent Emacs from including various headers of the replied-to
639 message, set the value of `mail-yank-ignored-headers' to an appropriate
640 regexp.
641
642 
643 File: efaq,  Node: Saving a copy of outgoing mail,  Next: Expanding aliases when sending mail,  Prev: Changing the included text prefix,  Up: Mail and news
644
645 How do I save a copy of outgoing mail?
646 ======================================
647
648    You can either mail yourself a copy by including a `BCC' header in
649 the mail message, or store a copy of the message directly to a file by
650 including an `FCC' header.
651
652    If you use standard mail, you can automatically create a `BCC' to
653 yourself by putting
654
655      (setq mail-self-blind t)
656
657 in your `.emacs' file.  You can automatically include an `FCC' field by
658 putting something like the following in your `.emacs' file:
659
660      (setq mail-archive-file-name (expand-file-name "~/outgoing"))
661
662    The output file will be in Unix mail format, which can be read
663 directly by VM, but not always by Rmail.  *Note Learning how to do
664 something::.
665
666    If you use `mh-e', add an `FCC' or `BCC' field to your components
667 file.
668
669    It does not work to put `set record filename' in the `.mailrc' file.
670
671 
672 File: efaq,  Node: Expanding aliases when sending mail,  Next: Rmail thinks all messages are one big one,  Prev: Saving a copy of outgoing mail,  Up: Mail and news
673
674 Why doesn't Emacs expand my aliases when sending mail?
675 ======================================================
676
677    * You must separate multiple addresses in the headers of the mail
678      buffer with commas.  This is because Emacs supports RFC822
679      standard addresses like this one:
680
681           To: Willy Smith <wks@xpnsv.lwyrs.com>
682
683      However, you do not need to--and probably should not, unless your
684      system's version of `/usr/ucb/mail' (a.k.a. `mailx') supports
685      RFC822--separate addresses with commas in your `~/.mailrc' file.
686
687    * Emacs normally only reads the `.mailrc' file once per session,
688      when you start to compose your first mail message.  If you edit
689      `.mailrc', you can type `M-x rebuild-mail-abbrevs <RET>' to make
690      Emacs reread `~/.mailrc'.
691
692    * If you like, you can expand mail aliases as abbrevs, as soon as you
693      type them in.  To enable this feature, execute the following:
694
695           (add-hook 'mail-mode-hook 'mail-abbrevs-setup)
696
697      Note that the aliases are expanded automatically only after you
698      type <RET> or a punctuation character (e.g. `,').  You can force
699      their expansion by moving point to the end of the alias and typing
700      `C-x a e' (`M-x expand-abbrev').
701
702 
703 File: efaq,  Node: Rmail thinks all messages are one big one,  Next: Sorting the messages in an Rmail folder,  Prev: Expanding aliases when sending mail,  Up: Mail and news
704
705 Why does Rmail think all my saved messages are one big message?
706 ===============================================================
707
708    A file created through the `FCC' field in a message is in Unix mail
709 format, not the format that Rmail uses (BABYL format).  Rmail will try
710 to convert a Unix mail file into BABYL format on input, but sometimes it
711 makes errors.  For guaranteed safety, you can make the `saved-messages'
712 file be an inbox for your Rmail file by using the function
713 `set-rmail-inbox-list'.
714
715 
716 File: efaq,  Node: Sorting the messages in an Rmail folder,  Next: Rmail writes to /usr/spool/mail,  Prev: Rmail thinks all messages are one big one,  Up: Mail and news
717
718 How can I sort the messages in my Rmail folder?
719 ===============================================
720
721    In Rmail, type `C-c C-s C-h' to get a list of sorting functions and
722 their key bindings.
723
724 
725 File: efaq,  Node: Rmail writes to /usr/spool/mail,  Next: Recovering mail files when Rmail munges them,  Prev: Sorting the messages in an Rmail folder,  Up: Mail and news
726
727 Why does Rmail need to write to `/usr/spool/mail'?
728 ==================================================
729
730    This is the behavior of the `movemail' program which Rmail uses.
731 This indicates that `movemail' is configured to use lock files.
732
733    RMS writes:
734
735      Certain systems require lock files to interlock access to mail
736      files.  On these systems, `movemail' must write lock files, or you
737      risk losing mail.  You simply must arrange to let `movemail' write
738      them.
739
740      Other systems use the `flock' system call to interlock access.  On
741      these systems, you should configure `movemail' to use `flock'.
742
743 
744 File: efaq,  Node: Recovering mail files when Rmail munges them,  Next: Replying to the sender of a message,  Prev: Rmail writes to /usr/spool/mail,  Up: Mail and news
745
746 How do I recover my mail files after Rmail munges their format?
747 ===============================================================
748
749    If you have just done `M-x rmail-input' on a file and you don't want
750 to save it in Rmail's format (called BABYL), just kill the buffer (with
751 `C-x k').
752
753    If you typed `M-x rmail' and it read some messages out of your inbox
754 and you want to put them in a Unix mail file, use `C-o' on each message.
755
756    If you want to convert an existing file from BABYL format to Unix
757 mail format, use the command `M-x unrmail': it will prompt you for the
758 input and output file names.
759
760    Alternatively, you could use the `b2m' program supplied with Emacs.
761 `b2m' is a filter, and is used like this:
762
763       b2m < BABYL-FILE > MBOX-FILE
764
765 where BABYL-FILE is the name of the BABYL file, and MBOX-FILE is the
766 name of the file where the converted mail will be written.
767
768 
769 File: efaq,  Node: Replying to the sender of a message,  Next: MIME with Emacs mail packages,  Prev: Recovering mail files when Rmail munges them,  Up: Mail and news
770
771 How can I force Rmail to reply to the sender of a message, but not the other recipients?
772 ========================================================================================
773
774    Ron Isaacson <isaacson@seas.upenn.edu> says: When you hit <r> to
775 reply in Rmail, by default it CCs all of the original recipients
776 (everyone on the original `To' and `CC' lists). With a prefix argument
777 (i.e., typing `C-u' before <r>), it replies only to the sender.
778 However, going through the whole `C-u' business every time you want to
779 reply is a pain.  This is the best fix I've been able to come up with:
780
781      (defun rmail-reply-t ()
782        "Reply only to the sender of the current message. (See rmail-reply.)"
783        (interactive)
784        (rmail-reply t))
785      
786      (add-hook 'rmail-mode-hook
787        (lambda ()
788          (define-key rmail-mode-map "r" 'rmail-reply-t)
789          (define-key rmail-mode-map "R" 'rmail-reply)))
790
791 
792 File: efaq,  Node: MIME with Emacs mail packages,  Next: Automatically starting a mail or news reader,  Prev: Replying to the sender of a message,  Up: Mail and news
793
794 How can I get my favorite Emacs mail package to support MIME?
795 =============================================================
796
797    Read the Emacs MIME FAQ, maintained by MacDonald Hall Jackson
798 <trey@cs.berkeley.edu> at
799
800    `http://bmrc.berkeley.edu/~trey/emacs/mime.html'
801
802    Version 6.x of VM supports MIME.  *Note VM::.  Gnus supports MIME in
803 mail and news messages as of version 5.8.1 (Pterodactyl).  Rmail has
804 limited support for single-part MIME messages beginning with Emacs 20.3.
805
806 
807 File: efaq,  Node: Automatically starting a mail or news reader,  Next: Reading news with Emacs,  Prev: MIME with Emacs mail packages,  Up: Mail and news
808
809 How do I make Emacs automatically start my mail/news reader?
810 ============================================================
811
812    To start Emacs in Gnus:
813
814      emacs -f gnus
815
816 in Rmail:
817
818      emacs -f rmail
819
820    A more convenient way to start with Gnus:
821
822      alias gnus 'emacs -f gnus'
823      gnus
824
825    It is probably unwise to automatically start your mail or news reader
826 from your `.emacs' file.  This would cause problems if you needed to run
827 two copies of Emacs at the same time.  Also, this would make it
828 difficult for you to start Emacs quickly when you needed to.
829
830 
831 File: efaq,  Node: Reading news with Emacs,  Next: Gnus does not work with NNTP,  Prev: Automatically starting a mail or news reader,  Up: Mail and news
832
833 How do I read news under Emacs?
834 ===============================
835
836    Use `M-x gnus'.  It is documented in Info (*note Learning how to do
837 something::).
838
839 
840 File: efaq,  Node: Gnus does not work with NNTP,  Next: Viewing articles with embedded underlining,  Prev: Reading news with Emacs,  Up: Mail and news
841
842 Why doesn't Gnus work via NNTP?
843 ===============================
844
845    There is a bug in NNTP version 1.5.10, such that when multiple
846 requests are sent to the NNTP server, the server only handles the first
847 one before blocking waiting for more input which never comes.  NNTP
848 version 1.5.11 claims to fix this.
849
850    You can work around the bug inside Emacs like this:
851
852      (setq nntp-maximum-request 1)
853
854    You can find out what version of NNTP your news server is running by
855 telnetting to the NNTP port (usually 119) on the news server machine
856 (i.e., `telnet server-machine 119').  The server should give its
857 version number in the welcome message.  Type `quit' to get out.
858
859    *Note Spontaneous entry into isearch-mode::, for some additional
860 ideas.
861
862 
863 File: efaq,  Node: Viewing articles with embedded underlining,  Next: Saving a multi-part Gnus posting,  Prev: Gnus does not work with NNTP,  Up: Mail and news
864
865 How do I view news articles with embedded underlining (e.g., ClariNews)?
866 ========================================================================
867
868    Underlining appears like this:
869
870      _^Hu_^Hn_^Hd_^He_^Hr_^Hl_^Hi_^Hn_^Hi_^Hn_^Hg
871
872    Per Abrahamsen <abraham@dina.kvl.dk> suggests using the following
873 code, which uses the underline face to turn such text into true
874 underlining, inconjunction with Gnus:
875
876      (defun gnus-article-prepare-overstrike ()
877        ;; Prepare article for overstrike commands.
878        (save-excursion
879          (set-buffer gnus-article-buffer)
880          (let ((buffer-read-only nil))
881          (goto-char (point-min))
882            (while (search-forward "\b" nil t)
883              (let ((next (following-char))
884                    (previous (char-after (- (point) 2))))
885                (cond ((eq next previous)
886                       (delete-region (- (point) 2) (point))
887                       (put-text-property (point) (1+ (point))
888                                          'face 'bold))
889                      ((eq next ?_)
890                       (delete-region (1- (point)) (1+ (point)))
891                       (put-text-property (1- (point)) (point)
892                                          'face 'underline))
893                      ((eq previous ?_)
894                       (delete-region (- (point) 2) (point))
895                       (put-text-property (point) (1+ (point))
896                                          'face 'underline))))))))
897      
898      (add-hook 'gnus-article-prepare-hook 'gnus-article-prepare-overstrike)
899
900    Latest versions of Gnus do such a conversion automatically.
901
902    If you prefer to do away with underlining altogether, you can
903 destructively remove it with `M-x ununderline-region'; do this
904 automatically via
905
906      (add-hook 'gnus-article-prepare-hook
907        (lambda () (ununderline-region (point-min) (point-max))))
908
909 
910 File: efaq,  Node: Saving a multi-part Gnus posting,  Next: Starting Gnus faster,  Prev: Viewing articles with embedded underlining,  Up: Mail and news
911
912 How do I save all the items of a multi-part posting in Gnus?
913 ============================================================
914
915    Use `gnus-uu'.  Type `C-c C-v C-h' in the Gnus summary buffer to see
916 a list of available commands.
917
918 
919 File: efaq,  Node: Starting Gnus faster,  Next: Catching up in all newsgroups,  Prev: Saving a multi-part Gnus posting,  Up: Mail and news
920
921 How do I make Gnus start up faster?
922 ===================================
923
924    From the Gnus FAQ (*note Learning more about Gnus::):
925
926      Pranav Kumar Tiwari <pktiwari@eos.ncsu.edu> writes: I posted the
927      same query recently and I got an answer to it. I am going to
928      repeat the answer. What you need is a newer version of gnus,
929      version 5.0.4+. I am using 5.0.12 and it works fine with me with
930      the following settings:
931
932           (setq gnus-check-new-newsgroups nil
933                 gnus-read-active-file 'some
934                 gnus-nov-is-evil nil
935                 gnus-select-method '(nntp gnus-nntp-server))
936
937 
938 File: efaq,  Node: Catching up in all newsgroups,  Next: Killing based on nonstandard headers,  Prev: Starting Gnus faster,  Up: Mail and news
939
940 How do I catch up all newsgroups in Gnus?
941 =========================================
942
943    In the `*Newsgroup*' buffer, type `M-< C-x ( c y C-x ) M-0 C-x e'
944
945    Leave off the initial `M-<' if you only want to catch up from point
946 to the end of the `*Newsgroup*' buffer.
947
948 
949 File: efaq,  Node: Killing based on nonstandard headers,  Next: Removing flashing messages,  Prev: Catching up in all newsgroups,  Up: Mail and news
950
951 Why can't I kill in Gnus based on the Newsgroups/Keywords/Control headers?
952 ==========================================================================
953
954    Gnus will complain that the `Newsgroups', `Keywords', and `Control'
955 headers are "Unknown header" fields.
956
957    For the `Newsgroups' header, there is an easy workaround: kill on the
958 `Xref' header instead, which will be present on any cross-posted article
959 (as long as your site carries the cross-post group).
960
961    If you really want to kill on one of these headers, you can do it
962 like this:
963
964      (gnus-kill nil "^Newsgroups: .*\\(bad\\.group\\|worse\\.group\\)")
965
966 
967 File: efaq,  Node: Removing flashing messages,  Next: Catch-up is slow in Gnus,  Prev: Killing based on nonstandard headers,  Up: Mail and news
968
969 How do I get rid of flashing messages in Gnus for slow connections?
970 ===================================================================
971
972    Set `nntp-debug-read' to `nil'.
973
974 
975 File: efaq,  Node: Catch-up is slow in Gnus,  Next: Gnus hangs for a long time,  Prev: Removing flashing messages,  Up: Mail and news
976
977 Why is catch up slow in Gnus?
978 =============================
979
980    Because Gnus is marking crosspostings read.  You can control this
981 with the variable `gnus-use-cross-reference'.
982
983 
984 File: efaq,  Node: Gnus hangs for a long time,  Next: Learning more about Gnus,  Prev: Catch-up is slow in Gnus,  Up: Mail and news
985
986 Why does Gnus hang for a long time when posting?
987 ================================================
988
989    David Lawrence <tale@uunet.uu.net> explains:
990
991      The problem is almost always interaction between NNTP and C News.
992      NNTP POST asks C News's `inews' to not background itself but
993      rather hang around and give its exit status so it knows whether
994      the post was successful.  (That wait will on some systems not
995      return the exit status of the waited for job is a different sort
996      of problem.)  It ends up taking a long time because `inews' is
997      calling `relaynews', which often waits for another `relaynews' to
998      free the lock on the news system so it can file the article.
999
1000      My preferred solution is to change `inews' to not call
1001      `relaynews', but rather use `newsspool'.  This loses some
1002      error-catching functionality, but is for the most part safe as
1003      `inews' will detect a lot of the errors on its own.  The C News
1004      folks have sped up `inews', too, so speed should look better to
1005      most folks as that update propagates around.
1006
1007 
1008 File: efaq,  Node: Learning more about Gnus,  Prev: Gnus hangs for a long time,  Up: Mail and news
1009
1010 Where can I find out more about Gnus?
1011 =====================================
1012
1013    Look for the Gnus FAQ, available at
1014
1015    `http://www.ccs.neu.edu/software/contrib/gnus/'
1016
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