NEWS 365 KB
Newer Older
Dave Love's avatar
Dave Love committed
1
GNU Emacs NEWS -- history of user-visible changes.  2000-10-12
Dave Love's avatar
Dave Love committed
2
Copyright (C) 1999, 2000 Free Software Foundation, Inc.
Dave Love's avatar
#  
Dave Love committed
3 4 5
See the end for copying conditions.

Please send Emacs bug reports to bug-gnu-emacs@gnu.org.
Gerd Moellmann's avatar
Gerd Moellmann committed
6
For older news, see the file ONEWS
Dave Love's avatar
#  
Dave Love committed
7

Dave Love's avatar
Dave Love committed
8 9 10

* Installation Changes in Emacs 21.1

Gerd Moellmann's avatar
Gerd Moellmann committed
11 12
** Support for GNU/Linux on IA64 machines has been added.

Dave Love's avatar
Dave Love committed
13 14
** Support for LynxOS has been added.

Gerd Moellmann's avatar
Gerd Moellmann committed
15 16 17 18
** `movemail' defaults to supporting POP.  You can turn this off using
the --without-pop configure option, should that be necessary.

** There are new configure options associated with the support for
19 20
images and toolkit scrollbars.  Use the --help option in `configure'
to list them.
Gerd Moellmann's avatar
Gerd Moellmann committed
21

Gerd Moellmann's avatar
Gerd Moellmann committed
22
** There is a new configure option `--without-xim' that instructs
Gerd Moellmann's avatar
Gerd Moellmann committed
23
Emacs to not use X Input Methods (XIM), if these are available.
24 25 26 27 28

** There is a new configure option `--disable-largefile' to omit
Unix-98-style support for large files if that is available.

** You can build a 64-bit Emacs for SPARC/Solaris systems which
Dave Love's avatar
Dave Love committed
29
support 64-bit executables and also on Irix 6.5.  This increases the
Dave Love's avatar
Dave Love committed
30 31 32
maximum buffer size.  See etc/MACHINES for instructions.  Changes to
build on other 64-bit systems should be straightforward modulo any
necessary changes to unexec.
Gerd Moellmann's avatar
Gerd Moellmann committed
33

Dave Love's avatar
Dave Love committed
34 35 36
** Note that the MS-Windows port does not yet implement various of the
new display features described below.

37
** This version can be built for the Macintosh, but does not implement
Dave Love's avatar
Dave Love committed
38
all of the new display features described below.  The port currently
39 40 41
lacks unexec, asynchronous processes, and networking support.  See the
"Emacs and the Mac OS" appendix in the Emacs manual, for the
description of aspects specific to the Mac.
Dave Love's avatar
Dave Love committed
42

Gerd Moellmann's avatar
Gerd Moellmann committed
43 44 45

* Changes in Emacs 21.1

Dave Love's avatar
Dave Love committed
46 47 48 49
** Some packages are declared obsolete, to be removed in a future
version.  They are:  auto-show, c-mode, hscroll, ooutline.  Their
implementations have been moved to lisp/obsolete.

Dave Love's avatar
Dave Love committed
50 51 52 53
+++
** The new Custom option `keyboard-coding-system' specifies a coding
system for keyboard input.

Gerd Moellmann's avatar
Gerd Moellmann committed
54 55 56 57
+++
** The new user-option `even-window-heights' can be set to nil
to prevent `display-buffer' from evening out window heights.

58 59 60 61 62 63 64
+++
** The new command `msdos-set-mouse-buttons' forces Emacs to behave
as if the mouse had a specified number of buttons.  This comes handy
with mice that don't report their number of buttons correctly.  One
example is the wheeled mice, which report 3 buttons, but clicks on the
middle button are not passed to the MS-DOS version of Emacs.

Gerd Moellmann's avatar
Gerd Moellmann committed
65
+++
Gerd Moellmann's avatar
Gerd Moellmann committed
66 67 68 69
** The default for user-option `next-line-add-newlines' has been
changed to nil, i.e. C-n will no longer add newlines at the end of a
buffer by default.

70
** The new command M-x delete-trailing-whitespace RET will delete the
71
trailing whitespace within the current restriction.  You can also add
72 73
this function to `write-file-hooks' or `local-write-file-hooks'.

Gerd Moellmann's avatar
Gerd Moellmann committed
74 75 76
** When visiting a file with M-x find-file-literally, no newlines will
be added to the end of the buffer because of `require-final-newline'.

77 78 79 80
** auto-compression mode is no longer enabled just by loading jka-compr.el.
To control it, set `auto-compression-mode' via Custom or use the
`auto-compression-mode' command.

Dave Love's avatar
Dave Love committed
81 82 83
** `browse-url-gnome-moz' is a new option for
`browse-url-browser-function', invoking Mozilla in GNOME.

84
+++
Gerd Moellmann's avatar
Gerd Moellmann committed
85 86 87
** The functions `keep-lines', `flush-lines' and `how-many' now
operate on the active region in Transient Mark mode.

88 89 90 91 92
** The header line in an Info buffer is now displayed as an emacs header-line
(which is like a mode-line, but at the top of the window), so that it
remains visible even when the buffer has been scrolled.  This behavior
may be disabled by customizing the option `Info-use-header-line'.

Dave Love's avatar
Dave Love committed
93
+++
Dave Love's avatar
Dave Love committed
94 95 96 97 98 99 100
** `gnus-user-agent' is a new possibility for `mail-user-agent'.  It
is like `message-user-agent', but with all the Gnus paraphernalia.

+++
** The recommended way of using Iswitchb is via the new global minor
mode `iswitchb-mode'.

Dave Love's avatar
Dave Love committed
101
+++
Dave Love's avatar
Gnus  
Dave Love committed
102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117
** Gnus changes.

The Gnus NEWS entries are short, but they reflect sweeping changes in
four areas: Article display treatment, MIME treatment,
internationalization and mail-fetching.

*** The mail-fetching functions have changed.  See the manual for the
many details.  In particular, all procmail fetching variables are gone.

If you used procmail like in

(setq nnmail-use-procmail t)
(setq nnmail-spool-file 'procmail)
(setq nnmail-procmail-directory "~/mail/incoming/")
(setq nnmail-procmail-suffix "\\.in")

Thien-Thi Nguyen's avatar
Thien-Thi Nguyen committed
118
this now has changed to
Dave Love's avatar
Gnus  
Dave Love committed
119 120 121 122 123 124 125 126 127 128

(setq mail-sources
      '((directory :path "~/mail/incoming/"
		   :suffix ".in")))

More information is available in the info doc at Select Methods ->
Getting Mail -> Mail Sources

*** Gnus is now a MIME-capable reader.  This affects many parts of
Gnus, and adds a slew of new commands.  See the manual for details.
Kenichi Handa's avatar
Kenichi Handa committed
129 130 131
Separate MIME packages like RMIME, mime-compose etc., will probably no
longer work; remove them and use the native facilities.

Dave Love's avatar
Dave Love committed
132 133 134
The FLIM/SEMI package still works with Emacs 21, but if you want to
use the native facilities, you must remove any mailcap.el[c] that was
installed by FLIM/SEMI version 1.13 or earlier.
Dave Love's avatar
Gnus  
Dave Love committed
135

Dave Love's avatar
Dave Love committed
136
*** Gnus has also been multilingualized.  This also affects too many
Dave Love's avatar
md5.  
Dave Love committed
137 138 139
parts of Gnus to summarize here, and adds many new variables.  There
are built-in facilities equivalent to those of gnus-mule.el, which is
now just a compatibility layer.
Dave Love's avatar
Gnus  
Dave Love committed
140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158

*** gnus-auto-select-first can now be a function to be
called to position point.

*** The user can now decide which extra headers should be included in
summary buffers and NOV files.

*** `gnus-article-display-hook' has been removed.  Instead, a number
of variables starting with `gnus-treat-' have been added.

*** The Gnus posting styles have been redone again and now work in a
subtly different manner.

*** New web-based backends have been added: nnslashdot, nnwarchive
and nnultimate.  nnweb has been revamped, again, to keep up with
ever-changing layouts.

*** Gnus can now read IMAP mail via nnimap.

Dave Love's avatar
Dave Love committed
159
*** There is image support of various kinds and some sound support.
Dave Love's avatar
Gnus  
Dave Love committed
160 161

** When your terminal can't display characters from some of the ISO
Dave Love's avatar
Dave Love committed
162 163 164 165 166 167
8859 character sets but can display Latin-1, you can display
more-or-less mnemonic sequences of ASCII/Latin-1 characters instead of
empty boxes (under a window system) or question marks (not under a
window system).  Customize the option `latin1-display' to turn this
on.

Gerd Moellmann's avatar
Gerd Moellmann committed
168 169 170 171
** The new user-option `find-file-suppress-same-file-warnings' can be
set to suppress warnings ``X and Y are the same file'' when visiting a
file that is already visited under a different name.

Gerd Moellmann's avatar
Gerd Moellmann committed
172 173 174 175 176 177 178
** The new user-option `electric-help-shrink-window' can be set to
nil to prevent adjusting the help window size to the buffer size.

** Emacs now checks for recursive loads of Lisp files.  If the
recursion depth exceeds `recursive-load-depth-limit', an error is
signaled.

Gerd Moellmann's avatar
Gerd Moellmann committed
179
** The Strokes package has been updated.  If your Emacs has XPM
Dave Love's avatar
Dave Love committed
180 181 182 183 184 185
support, you can use it for pictographic editing.  In Strokes mode,
use C-mouse-2 to compose a complex stoke and insert it into the
buffer.  You can encode or decode a strokes buffer with new commands
M-x strokes-encode-buffer and M-x strokes-decode-buffer.  There is a
new command M-x strokes-list-strokes.

Kenichi Handa's avatar
Kenichi Handa committed
186
+++
Gerd Moellmann's avatar
Gerd Moellmann committed
187
** New command M-x describe-character-set reads a character set name
Eli Zaretskii's avatar
Eli Zaretskii committed
188
and displays information about that.
Kenichi Handa's avatar
Kenichi Handa committed
189

Gerd Moellmann's avatar
Gerd Moellmann committed
190
** When an error is signaled during the loading of the user's init
Gerd Moellmann's avatar
Gerd Moellmann committed
191 192
file, Emacs now pops up the *Messages* buffer.

Gerd Moellmann's avatar
Gerd Moellmann committed
193 194 195
** Polish, German, and French translations of Emacs' reference card
have been added.  They are named `pl-refcard.tex', `de-refcard.tex' and
`fr-refcard.tex'.  Postscript files are included.
Gerd Moellmann's avatar
Gerd Moellmann committed
196

Dave Love's avatar
Dave Love committed
197 198
** An `Emacs Survival Guide', etc/survival.tex, is available.

Gerd Moellmann's avatar
Gerd Moellmann committed
199
** A reference card for Dired has been added.  Its name is
Gerd Moellmann's avatar
Gerd Moellmann committed
200 201
`dired-ref.tex'.  A French translation is available in
`fr-drdref.tex'.
Gerd Moellmann's avatar
Gerd Moellmann committed
202

Gerd Moellmann's avatar
Gerd Moellmann committed
203 204 205 206 207 208 209 210 211 212
** The new variable `auto-mode-interpreter-regexp' contains a regular
expression matching interpreters, for file mode determination.

This regular expression is matched against the first line of a file to
determine the file's mode in `set-auto-mode' when Emacs can't deduce a
mode from the file's name.  If it matches, the file is assumed to be
interpreted by the interpreter matched by the second group of the
regular expression.  The mode is then determined as the mode
associated with that interpreter in `interpreter-mode-alist'.

213
+++
214 215 216 217 218
** C-down-mouse-3 is bound differently.  Now if the menu bar is not
displayed it pops up a menu containing the items which would be on the
menu bar.  If the menu bar is displayed, it pops up the major mode
menu or the Edit menu if there is no major mode menu.

Dave Love's avatar
Dave Love committed
219 220 221
** Variable `load-path' is no longer customizable because it contains
a version-dependent component.

Gerd Moellmann's avatar
Gerd Moellmann committed
222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240
** The new user-option `delete-key-deletes-forward' can be set to 
let the Delete function key delete forward instead of backward.

On window systems, the default value of this option is chosen
according to the keyboard used.  If the keyboard has both a Backspace
key and a Delete key, and both are mapped to their usual meanings, the
option's default value is set to t, so that Backspace can be used to
delete backward, and Delete can be used used to delete forward

If not running under a window system, setting this option accomplishes
a similar effect by mapping C-h, which is usually generated by the
Backspace key, to DEL, and by mapping DEL to C-d via
`keyboard-translate'.  The former functionality of C-h is available on
the F1 key.  You should probably not use this setting if you don't
have both Backspace, Delete and F1 keys.

Programmatically, you can call function
delete-key-deletes-forward-mode to toggle the behavior of the Delete
key.
Gerd Moellmann's avatar
Gerd Moellmann committed
241

Dave Love's avatar
Dave Love committed
242 243 244
** Item Save Options on the Options menu allows saving options set
using that menu.

245
** New function executable-make-buffer-file-executable-if-script-p is
Dave Love's avatar
Dave Love committed
246
suitable as an after-save-hook as an alternative to `executable-chmod'.
247

248
+++
Dave Love's avatar
Dave Love committed
249 250 251 252 253 254 255 256
** The most preferred coding-system is now used to save a buffer if
buffer-file-coding-system is `undecided' and it is safe for the buffer
contents.  (The most preferred is set by set-language-environment or
by M-x prefer-coding-system.)  Thus if you visit an ASCII file and
insert a non-ASCII character from your current language environment,
the file will be saved silently with the appropriate coding.
Previously you would be prompted for a safe coding system.

257
+++
Gerd Moellmann's avatar
Gerd Moellmann committed
258 259 260 261 262
** New variable `inhibit-iso-escape-detection' determines if Emacs'
coding system detection algorithm should pay attention to ISO2022's
escape sequences.  If this variable is non-nil, the algorithm ignores
such escape sequences.  The default value is nil, and it is
recommended not to change it except for the special case that you
Kenichi Handa's avatar
Kenichi Handa committed
263
always want to read any escape code verbatim.  If you just want to
Gerd Moellmann's avatar
Gerd Moellmann committed
264
read a specific file without decoding escape codes, use C-x RET c
Kenichi Handa's avatar
Kenichi Handa committed
265 266
(`universal-coding-system-argument').  For instance, C-x RET c latin-1
RET C-x C-f filename RET.
Kenichi Handa's avatar
Kenichi Handa committed
267

Dave Love's avatar
Dave Love committed
268 269 270
** Variable `default-korean-keyboard' is initialized properly from the
environment variable `HANGUL_KEYBOARD_TYPE'.

Dave Love's avatar
Dave Love committed
271
+++
Dave Love's avatar
Dave Love committed
272 273 274
** C-u C-x = provides detailed information about the character at
point in a pop-up window.

275
+++
Dave Love's avatar
Dave Love committed
276 277 278 279 280 281
** New command M-x list-charset-chars reads a character set name and
displays all characters in that character set.

** M-x set-terminal-coding-system (C-x RET t) now allows CCL-based
coding systems such as cpXXX and cyrillic-koi8.

282
+++
283
** M-; now calls comment-dwim which tries to do something clever based
284
on the context.  M-x kill-comment is now an alias to comment-kill,
Stefan Monnier's avatar
Stefan Monnier committed
285 286
defined in newcomment.el.  You can choose different styles of region
commenting with the variable `comment-style'.
287

Dave Love's avatar
Dave Love committed
288
+++
Gerd Moellmann's avatar
Gerd Moellmann committed
289 290
** The function `getenv' is now callable interactively.

Dave Love's avatar
Dave Love committed
291 292 293
** The many obsolete language `setup-...-environment' commands have
been removed -- use `set-language-environment'.

Dave Love's avatar
Dave Love committed
294
+++
Dave Love's avatar
Dave Love committed
295 296 297 298 299
** New user options `display-time-mail-face' and
`display-time-use-mail-icon' control the appearance of mode-line mail
indicator used by the display-time package.  On a suitable display the
indicator can be an icon and is mouse-sensitive.

Dave Love's avatar
Dave Love committed
300
+++
Gerd Moellmann's avatar
Gerd Moellmann committed
301 302
** Emacs' auto-save list files are now by default stored in a
sub-directory `.emacs.d/auto-save-list/' of the user's home directory.
303
(On MS-DOS, this subdirectory's name is `_emacs.d/auto-save.list/'.)
Gerd Moellmann's avatar
Gerd Moellmann committed
304 305
You can customize `auto-save-list-prefix' to change this location.

Dave Love's avatar
Dave Love committed
306
+++
Gerd Moellmann's avatar
Gerd Moellmann committed
307 308 309
** On window-systems, additional space can be put between text lines
on the display using several methods

Dave Love's avatar
Dave Love committed
310
+++
Gerd Moellmann's avatar
Gerd Moellmann committed
311 312 313 314
- By setting frame parameter `line-spacing' to PIXELS.  PIXELS must be
a positive integer, and specifies that PIXELS number of pixels should
be put below text lines on the affected frame or frames.

Dave Love's avatar
Dave Love committed
315
+++
Gerd Moellmann's avatar
Gerd Moellmann committed
316
- By setting X resource `lineSpacing', class `LineSpacing'.  This is
Kenichi Handa's avatar
Kenichi Handa committed
317
equivalent to specifying the frame parameter.
Gerd Moellmann's avatar
Gerd Moellmann committed
318

Gerd Moellmann's avatar
Gerd Moellmann committed
319
- By specifying `--line-spacing=N' or `-lsp N' on the command line.
Gerd Moellmann's avatar
Gerd Moellmann committed
320 321 322 323

- By setting buffer-local variable `line-spacing'.  The meaning is
the same, but applies to the a particular buffer only.

Dave Love's avatar
Dave Love committed
324
+++
Dave Love's avatar
Dave Love committed
325
** The new command `clone-indirect-buffer' can be used to create
Gerd Moellmann's avatar
Gerd Moellmann committed
326
an indirect buffer that is a twin copy of the current buffer.  The
Dave Love's avatar
Dave Love committed
327
command `clone-indirect-buffer-other-window', bound to C-x 4 c,
Gerd Moellmann's avatar
Gerd Moellmann committed
328
does the same but displays the indirect buffer in another window.
Gerd Moellmann's avatar
Gerd Moellmann committed
329

Dave Love's avatar
Dave Love committed
330
+++
331
** New user options `backup-directory-alist' and
Dave Love's avatar
Dave Love committed
332 333
`make-backup-file-name-function' control the placement of backups,
typically in a single directory or in an invisible sub-directory.
334

Dave Love's avatar
Dave Love committed
335 336 337
** New commands iso-iso2sgml and iso-sgml2iso convert between Latin-1
characters and the corresponding SGML (HTML) entities.

338
+++
Gerd Moellmann's avatar
Gerd Moellmann committed
339 340 341 342 343 344 345 346
** Emacs now refuses to load compiled Lisp files which weren't
compiled with Emacs.  Set `load-dangerous-libraries' to t to change
this behavior.

The reason for this change is an incompatible change in XEmacs' byte
compiler.  Files compiled with XEmacs can contain byte codes that let
Emacs dump core.

Dave Love's avatar
Dave Love committed
347
+++
Gerd Moellmann's avatar
Gerd Moellmann committed
348
** New X resources recognized
Gerd Moellmann's avatar
Gerd Moellmann committed
349

Gerd Moellmann's avatar
Gerd Moellmann committed
350 351 352 353 354 355
*** The X resource `synchronous', class `Synchronous', specifies
whether Emacs should run in synchronous mode.  Synchronous mode
is useful for debugging X problems.

Example:

Gerd Moellmann's avatar
Gerd Moellmann committed
356
  emacs.synchronous: true
Gerd Moellmann's avatar
Gerd Moellmann committed
357

Gerd Moellmann's avatar
Gerd Moellmann committed
358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381
*** The X resource `visualClass, class `VisualClass', specifies the
visual Emacs should use.  The resource's value should be a string of
the form `CLASS-DEPTH', where CLASS is the name of the visual class,
and DEPTH is the requested color depth as a decimal number.  Valid
visual class names are

  TrueColor
  PseudoColor
  DirectColor
  StaticColor
  GrayScale
  StaticGray

Visual class names specified as X resource are case-insensitive, i.e.
`pseudocolor', `Pseudocolor' and `PseudoColor' all have the same
meaning.

The program `xdpyinfo' can be used to list the visual classes
supported on your display, and which depths they have.  If
`visualClass' is not specified, Emacs uses the display's default
visual.

Example:

Gerd Moellmann's avatar
Gerd Moellmann committed
382
  emacs.visualClass: TrueColor-8
Gerd Moellmann's avatar
Gerd Moellmann committed
383 384 385 386 387 388 389 390

*** The X resource `privateColormap', class `PrivateColormap',
specifies that Emacs should use a private colormap if it is using the
default visual, and that visual is of class PseudoColor.  Recognized
resource values are `true' or `on'.

Example:

Gerd Moellmann's avatar
Gerd Moellmann committed
391
  emacs.privateColormap: true
Gerd Moellmann's avatar
Gerd Moellmann committed
392

393 394 395 396
** The menu bar configuration has changed.  The new configuration is
more CUA-compliant.  The most significant change is that Options is
now a separate menu-bar item, with Mule and Customize as its submenus.

397
+++
Gerd Moellmann's avatar
Gerd Moellmann committed
398
** User-option `show-cursor-in-non-selected-windows' controls how to
Gerd Moellmann's avatar
Gerd Moellmann committed
399
display the cursor in non-selected windows.  If nil, no cursor is
Gerd Moellmann's avatar
Gerd Moellmann committed
400 401
shown, if non-nil a hollow box cursor is shown.  This option can
be customized.
Gerd Moellmann's avatar
Gerd Moellmann committed
402

Dave Love's avatar
Dave Love committed
403
+++
Dave Love's avatar
Dave Love committed
404 405
** The variable `echo-keystrokes' may now have a floating point value.

Dave Love's avatar
Dave Love committed
406
+++
Gerd Moellmann's avatar
Gerd Moellmann committed
407 408 409
** C-x 5 1 runs the new command delete-other-frames which deletes
all frames except the selected one.

Dave Love's avatar
Dave Love committed
410 411 412
** If your init file is compiled (.emacs.elc), `user-init-file' is set
to the source name (.emacs.el), if that exists, after loading it.

Gerd Moellmann's avatar
Gerd Moellmann committed
413
** The help string specified for a menu-item whose definition contains
414 415 416 417
the property `:help HELP' is now displayed under X, on MS-Windows, and
MS-DOS, either in the echo area or with tooltips.  Many standard menus
displayed by Emacs now have help strings.

418
+++
419 420
** Highlighting of mouse-sensitive regions is now supported in the
MS-DOS version of Emacs.
Gerd Moellmann's avatar
Gerd Moellmann committed
421

422 423 424
** New user option `read-mail-command' specifies a command to use to
read mail from the menu etc.

425
+++
Gerd Moellmann's avatar
Gerd Moellmann committed
426 427 428
** Hexl contains a new command `hexl-insert-hex-string' which inserts
a string of hexadecimal numbers read from the mini-buffer.

Gerd Moellmann's avatar
Gerd Moellmann committed
429 430
** Changes in Texinfo mode.

Stefan Monnier's avatar
Stefan Monnier committed
431
*** A couple of new key bindings have been added for inserting Texinfo
Gerd Moellmann's avatar
Gerd Moellmann committed
432 433 434 435 436 437
macros

  Key binding	Macro
  -------------------------
  C-c C-c C-s	@strong
  C-c C-c C-e	@emph
438
  C-c C-c u	@uref
Gerd Moellmann's avatar
Gerd Moellmann committed
439
  C-c C-c q     @quotation
440
  C-c C-c m	@email
Stefan Monnier's avatar
Stefan Monnier committed
441 442 443 444
  C-c C-o       @<block> ... @end <block>
  M-RET         @item

*** The " key now inserts either " or `` or '' depending on context.
Gerd Moellmann's avatar
Gerd Moellmann committed
445

446 447 448 449 450 451
** Changes in Outline mode.

There is now support for Imenu to index headings.  A new command
`outline-headers-as-kill' copies the visible headings in the region to
the kill ring, e.g. to produce a table of contents.

Thien-Thi Nguyen's avatar
Thien-Thi Nguyen committed
452
** Changes to Emacs Server
Gerd Moellmann's avatar
Gerd Moellmann committed
453

454 455
+++
*** The new option `server-kill-new-buffers' specifies what to do
Gerd Moellmann's avatar
Gerd Moellmann committed
456 457 458 459 460 461
with buffers when done with them.  If non-nil, the default, buffers
are killed, unless they were already present before visiting them with
Emacs Server.  If nil, `server-temp-file-regexp' specifies which
buffers to kill, as before.

Please note that only buffers are killed that still have a client,
462
i.e. buffers visited with `emacsclient --no-wait' are never killed in
Gerd Moellmann's avatar
Gerd Moellmann committed
463 464
this way.

Gerd Moellmann's avatar
Gerd Moellmann committed
465 466 467 468 469 470
** Changes to Show Paren mode.

*** Overlays used by Show Paren mode now use a priority property.
The new user option show-paren-priority specifies the priority to
use.  Default is 1000.

471
+++
Dave Love's avatar
Dave Love committed
472 473 474
** New command M-x check-parens can be used to find unbalanced paren
groups and strings in buffers in Lisp mode (or other modes).

Dave Love's avatar
Dave Love committed
475 476 477 478 479
+++
** You can now easily create new *Info* buffers using either
M-x clone-buffer, C-u m <entry> RET or C-u g <entry> RET.
M-x clone-buffer can also be used on *Help* and several other special
buffers.
Stefan Monnier's avatar
Stefan Monnier committed
480

Dave Love's avatar
Dave Love committed
481
+++
William M. Perry's avatar
William M. Perry committed
482 483 484 485 486 487 488
** Emacs can now support 'wheeled' mice (such as the MS IntelliMouse)
under XFree86.  To enable this, simply put (mwheel-install) in your
.emacs file.

The variables `mwheel-follow-mouse' and `mwheel-scroll-amount'
determine where and by how much buffers are scrolled.

Gerd Moellmann's avatar
Gerd Moellmann committed
489 490 491 492
** Listing buffers with M-x list-buffers (C-x C-b) now shows
abbreviated file names.  Abbreviations can be customized by changing
`directory-abbrev-alist'.

Dave Love's avatar
#  
Dave Love committed
493 494 495 496 497 498 499 500 501 502 503 504
** Faces and frame parameters.

There are four new faces `scroll-bar', `border', `cursor' and `mouse'.
Setting the frame parameters `scroll-bar-foreground' and
`scroll-bar-background' sets foreground and background color of face
`scroll-bar' and vice versa.  Setting frame parameter `border-color'
sets the background color of face `border' and vice versa.  Likewise
for frame parameters `cursor-color' and face `cursor', and frame
parameter `mouse-color' and face `mouse'.

Changing frame parameter `font' sets font-related attributes of the
`default' face and vice versa.  Setting frame parameters
Francesco Potortì's avatar
etags:  
Francesco Potortì committed
505
`foreground-color' or `background-color' sets the colors of the
Dave Love's avatar
#  
Dave Love committed
506 507
`default' face and vice versa.

508
+++
Gerd Moellmann's avatar
Gerd Moellmann committed
509 510 511 512 513 514
** New face `menu'.

The face `menu' can be used to change colors and font of Emacs' menus.
Setting the font of LessTif/Motif menus is currently not supported;
attempts to set the font are ignored in this case.

Dave Love's avatar
Dave Love committed
515
+++
Dave Love's avatar
#  
Dave Love committed
516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549
** New frame parameter `screen-gamma' for gamma correction.

The new frame parameter `screen-gamma' specifies gamma-correction for
colors.  Its value may be nil, the default, in which case no gamma
correction occurs, or a number > 0, usually a float, that specifies
the screen gamma of a frame's display.

PC monitors usually have a screen gamma of 2.2.  smaller values result
in darker colors.  You might want to try a screen gamma of 1.5 for LCD
color displays.  The viewing gamma Emacs uses is 0.4545. (1/2.2).

The X resource name of this parameter is `screenGamma', class
`ScreenGamma'.

** Emacs has a new redisplay engine.

The new redisplay handles characters of variable width and height.
Italic text can be used without redisplay problems.  Fonts containing
oversized characters, i.e. characters larger than the logical height
of a font can be used.  Images of various formats can be displayed in
the text.

** Emacs has a new face implementation.

The new faces no longer fundamentally use X font names to specify the
font.  Instead, each face has several independent attributes--family,
height, width, weight and slant--that it may or may not specify.
These attributes can be merged from various faces, and then together
specify a font.

Faces are supported on terminals that can display color or fonts.
These terminal capabilities are auto-detected.  Details can be found
under Lisp changes, below.

550
** New default font is Courier 12pt under X.
Dave Love's avatar
#  
Dave Love committed
551

Dave Love's avatar
Dave Love committed
552 553 554 555
+++
** When using a windowing terminal, each Emacs window now has a cursor
of its own.  When the window is selected, the cursor is solid;
otherwise, it is hollow.
Dave Love's avatar
#  
Dave Love committed
556 557 558 559 560 561

** Bitmap areas to the left and right of windows are used to display
truncation marks, continuation marks, overlay arrows and alike.  The
foreground, background, and stipple of these areas can be changed by
customizing face `fringe'.

Miles Bader's avatar
Miles Bader committed
562 563 564 565 566 567
** The mode line under X is now drawn with shadows by default.
You can change its appearance by modifying the face `mode-line'.

The variable `mode-line-inverse-video', which was used in older
versions of emacs to make the mode-line stand out, now defaults to nil,
and its use is deprecated.
Dave Love's avatar
#  
Dave Love committed
568 569 570

** LessTif support.

Dave Love's avatar
Dave Love committed
571 572
Emacs now runs with the LessTif toolkit (see <http://www.lesstif.org>).
You will need a version 0.88.1 or later.
Dave Love's avatar
#  
Dave Love committed
573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608

** Toolkit scroll bars.

Emacs now uses toolkit scrollbars if available.  When configured for
LessTif/Motif, it will use that toolkit's scrollbar.  Otherwise, when
configured for Lucid and Athena widgets, it will use the Xaw3d scroll
bar if Xaw3d is available.  You can turn off the use of toolkit scroll
bars by specifying `--with-toolkit-scroll-bars=no' when configuring
Emacs.

When you encounter problems with the Xaw3d scroll bar, watch out how
Xaw3d is compiled on your system.  If the Makefile generated from
Xaw3d's Imakefile contains a `-DNARROWPROTO' compiler option, and your
Emacs system configuration file `s/your-system.h' does not contain a
define for NARROWPROTO, you might consider adding it.  Take
`s/freebsd.h' as an example.

Alternatively, if you don't have access to the Xaw3d source code, take
a look at your system's imake configuration file, for example in the
directory `/usr/X11R6/lib/X11/config' (paths are different on
different systems).  You will find files `*.cf' there.  If your
system's cf-file contains a line like `#define NeedWidePrototypes NO',
add a `#define NARROWPROTO' to your Emacs system configuration file.

The reason for this is that one Xaw3d function uses `double' or
`float' function parameters depending on the setting of NARROWPROTO.
This is not a problem when Imakefiles are used because each system's
image configuration file contains the necessary information.  Since
Emacs doesn't use imake, this has do be done manually.

** Toggle buttons and radio buttons in menus.

When compiled with LessTif (or Motif) support, Emacs uses toolkit
widgets for radio and toggle buttons in menus.  When configured for
Lucid, Emacs draws radio buttons and toggle buttons similar to Motif.

Dave Love's avatar
Dave Love committed
609
+++
Dave Love's avatar
#  
Dave Love committed
610 611 612 613 614 615 616 617 618
** Highlighting of trailing whitespace.

When `show-trailing-whitespace' is non-nil, Emacs displays trailing
whitespace in the face `trailing-whitespace'.  Trailing whitespace is
defined as spaces or tabs at the end of a line.  To avoid busy
highlighting when entering new text, trailing whitespace is not
displayed if point is at the end of the line containing the
whitespace.

619
+++
Dave Love's avatar
#  
Dave Love committed
620 621 622 623 624
** Busy-cursor.

Emacs can optionally display a busy-cursor under X.  You can turn the
display on or off by customizing group `cursor'.

Dave Love's avatar
Dave Love committed
625
+++
Dave Love's avatar
#  
Dave Love committed
626 627 628 629 630 631 632
** Blinking cursor

M-x blink-cursor-mode toggles a blinking cursor under X and on
terminals having terminal capabilities `vi', `vs', and `ve'.  Blinking
and related parameters like frequency and delay can be customized in
the group `cursor'.

Dave Love's avatar
Dave Love committed
633
+++
Dave Love's avatar
#  
Dave Love committed
634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652
** New font-lock support mode `jit-lock-mode'.

This support mode is roughly equivalent to `lazy-lock' but is
generally faster.  It supports stealth and deferred fontification.
See the documentation of the function `jit-lock-mode' for more
details.

Font-lock uses jit-lock-mode as default support mode, so you don't
have to do anything to activate it.

** Tabs and variable-width text.

Tabs are now displayed with stretch properties; the width of a tab is
defined as a multiple of the normal character width of a frame, and is
independent of the fonts used in the text where the tab appears.
Thus, tabs can be used to line up text in different fonts.

** Enhancements of the Lucid menu bar

Dave Love's avatar
Dave Love committed
653
+++
Dave Love's avatar
#  
Dave Love committed
654 655 656 657
*** The Lucid menu bar now supports the resource "margin".

	emacs.pane.menubar.margin: 5

658 659
The default margin is 4 which makes the menu bar appear like the
LessTif/Motif one.
Dave Love's avatar
#  
Dave Love committed
660

661 662
*** Arrows that indicate sub-menus are now drawn with shadows, as in
LessTif and Motif.
Dave Love's avatar
#  
Dave Love committed
663

664
+++
Dave Love's avatar
#  
Dave Love committed
665 666
** Hscrolling in C code.

Gerd Moellmann's avatar
Gerd Moellmann committed
667 668 669
Horizontal scrolling now happens automatically if
`automatic-hscrolling' is set (the default).  This setting can be
customized.
Dave Love's avatar
#  
Dave Love committed
670

Gerd Moellmann's avatar
Gerd Moellmann committed
671 672 673 674 675 676
If a window is scrolled horizontally with set-window-hscroll, or
scroll-left/scroll-right (C-x <, C-x >), this serves as a lower bound
for automatic horizontal scrolling.  Automatic scrolling will scroll
the text more to the left if necessary, but won't scroll the text more
to the right than the column set with set-window-hscroll etc.

Dave Love's avatar
Dave Love committed
677
+++
Dave Love's avatar
#  
Dave Love committed
678 679 680
** Tool bar support.

Emacs supports a tool bar at the top of a frame under X.  For details
Dave Love's avatar
Dave Love committed
681 682
of how to define a tool bar, see the page describing Lisp-level
changes.  Tool-bar global minor mode controls whether or not it is
Dave Love's avatar
Dave Love committed
683 684 685 686 687 688 689
displayed and is on by default.  The appearance of the bar is improved
if Emacs has been built with XPM image support.  Otherwise monochrome
icons will be used.

To make the tool bar more useful, we need contributions of extra icons
for specific modes (with copyright assignments).  Contributions would
also be useful manually to touch up some of the PBM icons.
Dave Love's avatar
#  
Dave Love committed
690

Dave Love's avatar
Dave Love committed
691
+++
Dave Love's avatar
#  
Dave Love committed
692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709
** Mouse-sensitive mode line.

Different parts of the mode line under X have been made
mouse-sensitive.  Moving the mouse to a mouse-sensitive part in the mode
line changes the appearance of the mouse pointer to an arrow, and help
about available mouse actions is displayed either in the echo area, or
in the tooltip window if you have enabled one.

Currently, the following actions have been defined:

- Mouse-1 on the buffer name in the mode line switches between two
buffers.

- Mouse-2 on the buffer-name switches to the next buffer, and
M-mouse-2 switches to the previous buffer in the buffer list.

- Mouse-3 on the buffer-name displays a buffer menu.

Dave Love's avatar
Dave Love committed
710 711
- Mouse-2 on the read-only or modified status in the mode line (`%' or
`*') toggles the status.
Dave Love's avatar
#  
Dave Love committed
712 713 714 715 716 717

- Mouse-3 on the mode name display a minor-mode menu.

** LessTif/Motif file selection dialog.

When Emacs is configured to use LessTif or Motif, reading a file name
Dave Love's avatar
Dave Love committed
718
from a menu will pop up a file selection dialog if `use-dialog-box' is
Dave Love's avatar
#  
Dave Love committed
719 720 721 722 723 724 725 726 727
non-nil.

** Emacs can display faces on TTY frames.

Emacs automatically detects terminals that are able to display colors.
Faces with a weight greater than normal are displayed extra-bright, if
the terminal supports it.  Faces with a weight less than normal and
italic faces are displayed dimmed, if the terminal supports it.
Underlined faces are displayed underlined if possible.  Other face
728 729
attributes such as `overline', `strike-through', and `box' are ignored
on terminals.
Dave Love's avatar
#  
Dave Love committed
730

731 732 733
The command-line options `-fg COLOR', `-bg COLOR', and `-rv' are now
supported on character terminals.

Dave Love's avatar
#  
Dave Love committed
734 735
** Sound support

Gerd Moellmann's avatar
Gerd Moellmann committed
736
Emacs supports playing sound files on GNU/Linux and FreeBSD (Voxware
737
driver and native BSD driver, a.k.a. Luigi's driver).  Currently
Gerd Moellmann's avatar
Gerd Moellmann committed
738
supported file formats are RIFF-WAVE (*.wav) and Sun Audio (*.au).
Dave Love's avatar
#  
Dave Love committed
739

Dave Love's avatar
Dave Love committed
740
+++
Dave Love's avatar
#  
Dave Love committed
741 742 743 744 745 746 747 748 749
** A new variable, backup-by-copying-when-privileged-mismatch, gives
the highest file uid for which backup-by-copying-when-mismatch will be
forced on.  The assumption is that uids less than or equal to this
value are special uids (root, bin, daemon, etc.--not real system
users) and that files owned by these users should not change ownership,
even if your system policy allows users other than root to edit them.

The default is 200; set the variable to nil to disable the feature.

750
+++
Dave Love's avatar
#  
Dave Love committed
751 752 753 754 755 756
** A block cursor can be drawn as wide as the glyph under it under X.

As an example: if a block cursor is over a tab character, it will be
drawn as wide as that tab on the display.  To do this, set
`x-stretch-cursor' to a non-nil value.

757
+++
Dave Love's avatar
#  
Dave Love committed
758 759 760 761 762 763 764
** Empty display lines at the end of a buffer may be marked with a
bitmap (this is similar to the tilde displayed by vi).

This behavior is activated by setting the buffer-local variable
`indicate-empty-lines' to a non-nil value.  The default value of this
variable is found in `default-indicate-empty-lines'.

765
+++
Dave Love's avatar
#  
Dave Love committed
766 767 768
** There is a new "aggressive" scrolling method.

When scrolling up because point is above the window start, if the
Kenichi Handa's avatar
Kenichi Handa committed
769
value of the buffer-local variable `scroll-up-aggressively' is a
Dave Love's avatar
#  
Dave Love committed
770
number, Emacs chooses a new window start so that point ends up that
Gerd Moellmann's avatar
Gerd Moellmann committed
771
fraction of the window's height from the top of the window.
Dave Love's avatar
#  
Dave Love committed
772 773 774 775

When scrolling down because point is below the window end, if the
value of the buffer-local variable `scroll-down-aggessively' is a
number, Emacs chooses a new window start so that point ends up that
Gerd Moellmann's avatar
Gerd Moellmann committed
776
fraction of the window's height from the bottom of the window.
Dave Love's avatar
#  
Dave Love committed
777 778 779 780 781 782 783

** The rectangle commands now avoid inserting undesirable spaces,
notably at the end of lines.

All these functions have been rewritten to avoid inserting unwanted
spaces, and an optional prefix now allows them to behave the old way.

Dave Love's avatar
Dave Love committed
784
+++
Dave Love's avatar
Dave Love committed
785 786
There is a new command M-x replace-rectangle.

Dave Love's avatar
#  
Dave Love committed
787 788 789 790
** The new command M-x query-replace-regexp-eval acts like
query-replace-regexp, but takes a Lisp expression which is evaluated
after each match to get the replacement text.

791
+++
Gerd Moellmann's avatar
Gerd Moellmann committed
792 793
** M-x query-replace recognizes a new command `e' (or `E') that lets
you edit the replacement string.
Gerd Moellmann's avatar
Gerd Moellmann committed
794

Dave Love's avatar
Dave Love committed
795
** The new command mail-abbrev-complete-alias, bound to `M-TAB', lets
Gerd Moellmann's avatar
Gerd Moellmann committed
796 797 798
you complete mail aliases in the text, analogous to
lisp-complete-symbol.

799
+++
Dave Love's avatar
#  
Dave Love committed
800 801
** Emacs now resizes mini-windows if appropriate.

802
If a message is longer than one line, or minibuffer contents are
Gerd Moellmann's avatar
Gerd Moellmann committed
803 804 805
longer than one line, Emacs can resize the minibuffer window unless it
is on a frame of its own.  You can control resizing and the maximum
minibuffer window size by setting the following variables:
Dave Love's avatar
#  
Dave Love committed
806 807 808 809 810

- User option: max-mini-window-height

Maximum height for resizing mini-windows.  If a float, it specifies a
fraction of the mini-window frame's height.  If an integer, it
Gerd Moellmann's avatar
Gerd Moellmann committed
811
specifies a number of lines.
Dave Love's avatar
#  
Dave Love committed
812 813 814

Default is 0.25.

Gerd Moellmann's avatar
Gerd Moellmann committed
815 816 817
- User option: resize-mini-windows

How to resize mini-windows.  If nil, don't resize.  If t, always
Kenichi Handa's avatar
Kenichi Handa committed
818
resize to fit the size of the text.  If `grow-only', let mini-windows
Gerd Moellmann's avatar
Gerd Moellmann committed
819 820 821 822 823
grow only, until they become empty, at which point they are shrunk
again.

Default is `grow-only'.

Gerd Moellmann's avatar
Gerd Moellmann committed
824 825
** The command `Info-search' now uses a search history.

Gerd Moellmann's avatar
Gerd Moellmann committed
826 827 828
** Changes to hideshow.el

Hideshow is now at version 5.x.  It uses a new algorithms for block
Thien-Thi Nguyen's avatar
Thien-Thi Nguyen committed
829 830
selection and traversal, includes more isearch support, and has more
conventional keybindings.
Gerd Moellmann's avatar
Gerd Moellmann committed
831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860

*** Generalized block selection and traversal

A block is now recognized by three things: its start and end regexps
(both strings), and a match-data selector (an integer) specifying
which sub-expression in the start regexp serves as the place where a
`forward-sexp'-like function can operate.  Hideshow always adjusts
point to this sub-expression before calling `hs-forward-sexp-func'
(which for most modes evaluates to `forward-sexp').

If the match-data selector is not specified, it defaults to zero,
i.e., the entire start regexp is valid, w/ no prefix.  This is
backwards compatible with previous versions of hideshow.  Please see
the docstring for variable `hs-special-modes-alist' for details.

*** Isearch support for updating mode line

During incremental search, if Hideshow minor mode is active, hidden
blocks are temporarily shown.  The variable `hs-headline' records the
line at the beginning of the opened block (preceding the hidden
portion of the buffer), and the mode line is refreshed.  When a block
is re-hidden, the variable is set to nil.

To show `hs-headline' in the mode line, you may wish to include
something like this in your .emacs.

	(add-hook 'hs-minor-mode-hook
	  (lambda ()
	    (add-to-list 'mode-line-format 'hs-headline)))

Thien-Thi Nguyen's avatar
Thien-Thi Nguyen committed
861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908
*** New customization var: `hs-hide-all-non-comment-function'

Normally, `hs-hide-all' hides everything, leaving only the
header lines of top-level forms (and comments, unless var
`hs-hide-comments-when-hiding-all' is non-nil).  It does this by
moving point to each top-level block beginning and hiding the
block there.  In some major modes (for example, Java), this
behavior results in few blocks left visible, which may not be so
useful.

You can now set var `hs-hide-all-non-comment-function' to a
function to be called at each top-level block beginning, instead
of the normal block-hiding function.  For example, the following
code defines a function to hide one level down and move point
appropriately, and then tells hideshow to use the new function.

(defun ttn-hs-hide-level-1 ()
  (hs-hide-level 1)
  (forward-sexp 1))
(setq hs-hide-all-non-comment-function 'ttn-hs-hide-level-1)

The name `hs-hide-all-non-comment-function' was chosen to
emphasize that this function is not called for comment blocks,
only for code blocks.

*** Command deleted: `hs-show-region'

Historical Note: This command was added to handle "unbalanced
parentheses" emergencies back when hideshow.el used selective
display for implementation.

*** Commands rebound to more conventional keys

The hideshow commands used to be bound to keys of the form "C-c
LETTER".  This is contrary to the Emacs keybinding convention,
which reserves that space for user modification.  Here are the
new bindings (which includes the addition of `hs-toggle-hiding'):

  hs-hide-block               C-c C-h
  hs-show-block               C-c C-s
  hs-hide-all                 C-c C-M-h
  hs-show-all                 C-c C-M-s
  hs-hide-level               C-c C-l
  hs-toggle-hiding            C-c C-c
  hs-mouse-toggle-hiding      [(shift button-2)]

These were chosen to roughly imitate those used by Outline mode.

909 910
** Changes to Change Log mode and Add-Log functions

Dave Love's avatar
Dave Love committed
911
+++
Gerd Moellmann's avatar
Gerd Moellmann committed
912 913
*** If you invoke `add-change-log-entry' from a backup file, it makes
an entry appropriate for the file's parent.  This is useful for making
914 915
log entries by comparing a version with deleted functions.

Dave Love's avatar
Dave Love committed
916
+++
Gerd Moellmann's avatar
Gerd Moellmann committed
917 918
**** New command M-x change-log-merge merges another log into the
current buffer.
Dave Love's avatar
Dave Love committed
919 920

+++
Gerd Moellmann's avatar
Gerd Moellmann committed
921 922
*** New command M-x change-log-redate fixes any old-style date entries
in a log file.
Gerd Moellmann's avatar
Gerd Moellmann committed
923

924
+++
Gerd Moellmann's avatar
Gerd Moellmann committed
925 926
*** Change Log mode now adds a file's version number to change log
entries if user-option `change-log-version-info-enabled' is non-nil.
Gerd Moellmann's avatar
Gerd Moellmann committed
927

928
+++
Gerd Moellmann's avatar
Gerd Moellmann committed
929
*** Unless the file is under version control the search for a file's
Dave Love's avatar
Dave Love committed
930 931 932
version number is performed based on regular expressions from
`change-log-version-number-regexp-list' which can be cutomized.
Version numbers are only found in the first 10 percent of a file.
Gerd Moellmann's avatar
Gerd Moellmann committed
933

Stefan Monnier's avatar
Stefan Monnier committed
934
*** Change Log mode now defines its own faces for font-lock highlighting.
Gerd Moellmann's avatar
Gerd Moellmann committed
935

936 937 938 939 940
** Changes to cmuscheme

*** The user-option `scheme-program-name' has been renamed
`cmuscheme-program-name' due to conflicts with xscheme.el.

941 942 943
** Changes in Font Lock

*** The new function `font-lock-remove-keywords' can be used to remove
Stefan Monnier's avatar
Stefan Monnier committed
944
font-lock keywords from the current buffer or from a specific major mode.
945

Stefan Monnier's avatar
Stefan Monnier committed
946 947
*** multiline patterns are now supported.

Stefan Monnier's avatar
Stefan Monnier committed
948 949
*** `font-lock-syntactic-face-function' allows major-modes to choose
the face used for each string/comment.
950

Stefan Monnier's avatar
Stefan Monnier committed
951 952 953
*** A new standard face `font-lock-doc-face'.
Meant for Lisp docstrings, Javadoc comments and other "documentation in code".

Gerd Moellmann's avatar
Gerd Moellmann committed
954 955
** Comint (subshell) changes

Miles Bader's avatar
Miles Bader committed
956 957 958 959 960 961 962 963 964 965 966 967 968
These changes generally affect all modes derived from comint mode, which
include shell-mode, gdb-mode, scheme-interaction-mode, etc.

*** By default, comint no longer uses the variable `comint-prompt-regexp'
to distinguish prompts from user-input.  Instead, it notices which
parts of the text were output by the process, and which entered by the
user, and attaches `field' properties to allow emacs commands to use
this information.  Common movement commands, notably beginning-of-line,
respect field boundaries in a fairly natural manner.  To disable this
feature, and use the old behavior, customize the user option
`comint-use-prompt-regexp-instead-of-fields'.

*** Comint now includes new features to send commands to running processes
Gerd Moellmann's avatar
Gerd Moellmann committed
969 970
and redirect the output to a designated buffer or buffers.

Miles Bader's avatar
Miles Bader committed
971
*** The command M-x comint-redirect-send-command reads a command and
Gerd Moellmann's avatar
Gerd Moellmann committed
972 973 974 975 976 977 978
buffer name from the mini-buffer.  The command is sent to the current
buffer's process, and its output is inserted into the specified buffer.

The command M-x comint-redirect-send-command-to-process acts like
M-x comint-redirect-send-command but additionally reads the name of
the buffer whose process should be used from the mini-buffer.

Miles Bader's avatar
Miles Bader committed
979 980 981
*** Packages based on comint now highlight user input and program prompts,
and support choosing previous input with mouse-2.  To control these features,
see the user-options `comint-highlight-input' and `comint-highlight-prompt'.
Gerd Moellmann's avatar
Gerd Moellmann committed
982

Miles Bader's avatar
Miles Bader committed
983
*** The new command `comint-write-output' (usually bound to `C-c C-s')
Miles Bader's avatar
Miles Bader committed
984 985 986
saves the output from the most recent command to a file.  With a prefix
argument, it appends to the file.

Miles Bader's avatar
Miles Bader committed
987
*** The command `comint-kill-output' has been renamed `comint-delete-output'
Miles Bader's avatar
Miles Bader committed
988 989 990
(usually bound to `C-c C-o'); the old name is aliased to it for
compatibility.

Eric M. Ludlam's avatar
Eric M. Ludlam committed
991 992
*** The new function `comint-add-to-input-history' adds commands to the input
ring (history).
Miles Bader's avatar
Miles Bader committed
993

Gerd Moellmann's avatar
Gerd Moellmann committed
994 995
*** The new variable `comint-input-history-ignore' is a regexp for
identifying history lines that should be ignored, like tcsh inserts in
Gerd Moellmann's avatar
Gerd Moellmann committed
996
time-stamp strings.  The default value of this variable is "^#".
Gerd Moellmann's avatar
Gerd Moellmann committed
997

Gerd Moellmann's avatar
Gerd Moellmann committed
998 999
** Changes to Rmail mode

Dave Love's avatar
Dave Love committed
1000
*** The new user-option rmail-user-mail-address-regexp can be
Gerd Moellmann's avatar
Gerd Moellmann committed
1001 1002 1003 1004 1005 1006 1007 1008
set to fine tune the identification of of the correspondent when
receiving new mail.  If it matches the address of the sender, the
recipient is taken as correspondent of a mail.  If nil, the default,
`user-login-name' and `user-mail-address' are used to exclude yourself
as correspondent.

Usually you don't have to set this variable, except if you collect
mails sent by you under different user names.  Then it should be a
Dave Love's avatar
Dave Love committed
1009
regexp matching your mail addresses.
Gerd Moellmann's avatar
Gerd Moellmann committed
1010

Gerd Moellmann's avatar
Gerd Moellmann committed
1011 1012 1013 1014 1015 1016
*** The new user-option rmail-confirm-expunge controls whether and how
to ask for confirmation before expunging deleted messages from an
Rmail file.  You can choose between no confirmation, confirmation
with y-or-n-p, or confirmation with yes-or-no-p.  Default is to ask
for confirmation with yes-or-no-p.

Gerd Moellmann's avatar
Gerd Moellmann committed
1017 1018 1019
*** RET is now bound in the Rmail summary to rmail-summary-goto-msg,
like `j'.

1020 1021
*** There is a new user option `rmail-digest-end-regexps' that
specifies the regular expressions to detect the line that ends a
1022
digest message.
Gerd Moellmann's avatar
Gerd Moellmann committed
1023

Dave Love's avatar
Dave Love committed
1024 1025 1026
*** The new user option `rmail-automatic-folder-directives' specifies
in which folder to put messages automatically.

Gerd Moellmann's avatar
Gerd Moellmann committed
1027 1028
** Changes to TeX mode

Stefan Monnier's avatar
Stefan Monnier committed
1029
*** The default mode has been changed from `plain-tex-mode' to
Gerd Moellmann's avatar
Gerd Moellmann committed
1030 1031
`latex-mode'.

Stefan Monnier's avatar
Stefan Monnier committed
1032 1033 1034 1035 1036
*** latex-mode now has a simple indentation algorithm.

*** M-f and M-p jump around \begin...\end pairs.

*** Added support for outline-minor-mode.
1037

Dave Love's avatar
#  
Dave Love committed
1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058
** Changes to RefTeX mode

*** RefTeX has new support for index generation.  Index entries can be
    created with `C-c <', with completion available on index keys.
    Pressing `C-c /' indexes the word at the cursor with a default
    macro.  `C-c >' compiles all index entries into an alphabetically
    sorted *Index* buffer which looks like the final index.  Entries
    can be edited from that buffer.

*** Label and citation key selection now allow to select several
    items and reference them together (use `m' to mark items, `a' or
    `A' to use all marked entries).

*** reftex.el has been split into a number of smaller files to reduce
    memory use when only a part of RefTeX is being used.

*** a new command `reftex-view-crossref-from-bibtex' (bound to `C-c &'
    in BibTeX-mode) can be called in a BibTeX database buffer in order
    to show locations in LaTeX documents where a particular entry has
    been cited.

1059 1060 1061 1062 1063
** Emacs Lisp mode now allows multiple levels of outline headings.
The level of a heading is determined from the number of leading
semicolons in a heading line.  Toplevel forms starting with a `('
in column 1 are always made leaves.

Dave Love's avatar
#  
Dave Love committed
1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078
** The M-x time-stamp command (most commonly used on write-file-hooks)
has the following new features:

*** The patterns for finding the time stamp and for updating a pattern
may match text spanning multiple lines.  For example, some people like
to have the filename and date on separate lines.  The new variable
time-stamp-inserts-lines controls the matching for multi-line patterns.

*** More than one time stamp can be updated in the same file.  This
feature is useful if you need separate time stamps in a program source
file to both include in formatted documentation and insert in the
compiled binary.  The same time-stamp will be written at each matching
pattern.  The variable time-stamp-count enables this new feature; it
defaults to 1.

1079
** Partial Completion mode now completes environment variables in
Gerd Moellmann's avatar
Gerd Moellmann committed
1080 1081
file names.

Dave Love's avatar
Dave Love committed
1082
+++
Dave Love's avatar
#  
Dave Love committed
1083 1084 1085
** Tooltips.

Tooltips are small X windows displaying a help string at the current
Dave Love's avatar
Dave Love committed
1086 1087
mouse position.  The Lisp package `tooltip' implements them.  You can
turn them off via the user option `tooltip-mode'.
Dave Love's avatar
#  
Dave Love committed
1088 1089 1090 1091 1092 1093

Tooltips also provides support for GUD debugging.  If activated,
variable values can be displayed in tooltips by pointing at them with
the mouse in source buffers.  You can customize various aspects of the
tooltip display in the group `tooltip'.

Dave Love's avatar
Dave Love committed
1094
+++
Dave Love's avatar
#  
Dave Love committed
1095 1096 1097
** Customize changes

*** Customize now supports comments about customized items.  Use the
Dave Love's avatar
Dave Love committed
1098 1099
`State' menu to add comments.  Note that customization comments will
cause the customizations to fail in earlier versions of Emacs.
Dave Love's avatar
#  
Dave Love committed
1100 1101 1102 1103 1104

*** The new option `custom-buffer-done-function' says whether to kill
Custom buffers when you've done with them or just bury them (the
default).

1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119
*** The keyword :set-after in defcustom allows to specify dependencies
between custom options.  Example:

  (defcustom default-input-method nil
    "*Default input method for multilingual text (a string).
  This is the input method activated automatically by the command
  `toggle-input-method' (\\[toggle-input-method])."
    :group 'mule
    :type '(choice (const nil) string)
    :set-after '(current-language-environment))

This specifies that default-input-method should be set after
current-language-environment even if default-input-method appears
first in a custom-set-variables statement.

Dave Love's avatar
#  
Dave Love committed
1120 1121
** New features in evaluation commands

Gerd Moellmann's avatar
Gerd Moellmann committed
1122
*** The commands to evaluate Lisp expressions, such as C-M-x in Lisp
Dave Love's avatar
#  
Dave Love committed
1123 1124 1125 1126 1127
modes, C-j in Lisp Interaction mode, and M-:, now bind the variables
print-level, print-length, and debug-on-error based on the
customizable variables eval-expression-print-level,
eval-expression-print-length, and eval-expression-debug-on-error.

Gerd Moellmann's avatar
Gerd Moellmann committed
1128 1129 1130
*** The function `eval-defun' (M-C-x) now loads Edebug and instruments
code when called with a prefix argument.

Gerd Moellmann's avatar
Gerd Moellmann committed
1131 1132
** Ispell changes

1133
+++
1134 1135
*** The command `ispell' now spell-checks a region if
transient-mark-mode is on, and the mark is active.  Otherwise it
Gerd Moellmann's avatar
Gerd Moellmann committed
1136 1137
spell-checks the current buffer.

1138
+++
Gerd Moellmann's avatar
Gerd Moellmann committed
1139 1140 1141 1142 1143 1144
*** Support for synchronous subprocesses - DOS/Windoze - has been
added.

*** An "alignment error" bug was fixed when a manual spelling
correction is made and re-checked.

Gerd Moellmann's avatar
Gerd Moellmann committed
1145
*** An Italian and a Portuguese dictionary definition has been added.
Gerd Moellmann's avatar
Gerd Moellmann committed
1146 1147 1148 1149 1150 1151 1152 1153 1154 1155

*** Region skipping performance has been vastly improved in some
cases.

*** Spell checking HTML buffers has been improved and isn't so strict
on syntax errors.

*** The buffer-local words are now always placed on a new line at the
end of the buffer.

Dave Love's avatar
#  
Dave Love committed
1156 1157 1158 1159 1160 1161 1162 1163 1164 1165
** Dired changes

*** New variable `dired-recursive-deletes' determines if the delete
command will delete non-empty directories recursively.  The default
is, delete only empty directories.

*** New variable `dired-recursive-copies' determines if the copy
command will copy directories recursively.  The default is, do not
copy directories recursively.

1166 1167 1168 1169
*** In command `dired-do-shell-command' (usually bound to `!') a `?'
in the shell command has a special meaning similar to `*', but with
the difference that the command will be run on each file individually.

Gerd Moellmann's avatar
Gerd Moellmann committed
1170 1171 1172 1173
*** The new command `dired-find-alternate-file' (usually bound to `a')
replaces the Dired buffer with the buffer for an alternate file or
directory.

1174 1175 1176 1177 1178 1179
*** The new command `dired-show-file-type' (usually bound to `w') shows
a message in the echo area describing what type of file the point is on.
This command invokes the external program `file' do its work, and so
will only work on systems with that program, and will be only as
accurate or inaccurate as it is.

Gerd Moellmann's avatar
Gerd Moellmann committed
1180 1181 1182
*** Dired now properly handles undo changes of adding/removing `-R'
from ls switches.

1183 1184 1185 1186 1187
*** Dired commands that prompt for a destination file now allow the use
of the `M-n' command in the minibuffer to insert the source filename,
which the user can then edit.  This only works if there is a single
source file, not when operating on multiple marked files.

Dave Love's avatar
#  
Dave Love committed
1188 1189 1190
** The variable mail-specify-envelope-from controls whether to
use the -f option when sending mail.

Gerd Moellmann's avatar
Gerd Moellmann committed
1191 1192 1193 1194 1195 1196 1197 1198 1199 1200
** CC mode changes.

Note: This release contains changes that might not be compatible with
current user setups (although it's believed that these
incompatibilities will only show in very uncommon circumstances).
However, since the impact is uncertain, these changes may be rolled
back depending on user feedback.  Therefore there's no forward
compatibility guarantee wrt the new features introduced in this
release.

Gerd Moellmann's avatar
Gerd Moellmann committed
1201 1202 1203 1204 1205 1206 1207 1208 1209
*** c-style-variables-are-local-p now defaults to t.
This is an incompatible change that has been made to make the behavior
of the style system wrt global variable settings less confusing for
non-advanced users.  If you know what this variable does you might
want to set it to nil in your .emacs, otherwise you probably don't
have to bother.

Defaulting c-style-variables-are-local-p to t avoids the confusing
situation that occurs when a user sets some style variables globally
Eli Zaretskii's avatar
Eli Zaretskii committed
1210
and edits both a Java and a non-Java file in the same Emacs session.
Gerd Moellmann's avatar
Gerd Moellmann committed
1211 1212 1213 1214
If the style variables aren't buffer local in this case, loading of
the second file will cause the default style (either "gnu" or "java"
by default) to override the global settings made by the user.

Gerd Moellmann's avatar
Gerd Moellmann committed
1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346
*** New initialization procedure for the style system.
When the initial style for a buffer is determined by CC Mode (from the
variable c-default-style), the global values of style variables now
take precedence over the values specified by the chosen style.  This
is different than the old behavior: previously, the style-specific
settings would override the global settings.  This change makes it
possible to do simple configuration in the intuitive way with
Customize or with setq lines in one's .emacs file.

By default, the global value of every style variable is the new
special symbol set-from-style, which causes the value to be taken from
the style system.  This means that in effect, only an explicit setting
of a style variable will cause the "overriding" behavior described
above.

Also note that global settings override style-specific settings *only*
when the initial style of a buffer is chosen by a CC Mode major mode
function.  When a style is chosen in other ways --- for example, by a
call like (c-set-style "gnu") in a hook, or via M-x c-set-style ---
then the style-specific values take precedence over any global style
values.  In Lisp terms, global values override style-specific values
only when the new second argument to c-set-style is non-nil; see the
function documentation for more info.

The purpose of these changes is to make it easier for users,
especially novice users, to do simple customizations with Customize or
with setq in their .emacs files.  On the other hand, the new system is
intended to be compatible with advanced users' customizations as well,
such as those that choose styles in hooks or whatnot.  This new system
is believed to be almost entirely compatible with current
configurations, in spite of the changed precedence between style and
global variable settings when a buffer's default style is set.

(Thanks to Eric Eide for clarifying this explanation a bit.)

**** c-offsets-alist is now a customizable variable.
This became possible as a result of the new initialization behavior.

This variable is treated slightly differently from the other style
variables; instead of using the symbol set-from-style, it will be
completed with the syntactic symbols it doesn't already contain when
the style is first initialized.  This means it now defaults to the
empty list to make all syntactic elements get their values from the
style system.

**** Compatibility variable to restore the old behavior.
In case your configuration doesn't work with this change, you can set
c-old-style-variable-behavior to non-nil to get the old behavior back
as far as possible.

*** Improvements to line breaking and text filling.
CC Mode now handles this more intelligently and seamlessly wrt the
surrounding code, especially inside comments.  For details see the new
chapter about this in the manual.

**** New variable to recognize comment line prefix decorations.
The variable c-comment-prefix-regexp has been added to properly
recognize the line prefix in both block and line comments.  It's
primarily used to initialize the various paragraph recognition and
adaptive filling variables that the text handling functions uses.

**** New variable c-block-comment-prefix.
This is a generalization of the now obsolete variable
c-comment-continuation-stars to handle arbitrary strings.

**** CC Mode now uses adaptive fill mode.
This to make it adapt better to the paragraph style inside comments.

It's also possible to use other adaptive filling packages inside CC
Mode, notably Kyle E. Jones' Filladapt mode (http://wonderworks.com/).
A new convenience function c-setup-filladapt sets up Filladapt for use
inside CC Mode.

Note though that the 2.12 version of Filladapt lacks a feature that
causes it to work suboptimally when c-comment-prefix-regexp can match
the empty string (which it commonly does).  A patch for that is
available from the CC Mode web site (http://www.python.org/emacs/
cc-mode/).

**** It's now possible to selectively turn off auto filling.
The variable c-ignore-auto-fill is used to ignore auto fill mode in
specific contexts, e.g. in preprocessor directives and in string
literals.

**** New context sensitive line break function c-context-line-break.
It works like newline-and-indent in normal code, and adapts the line
prefix according to the comment style when used inside comments.  If
you're normally using newline-and-indent, you might want to switch to
this function.

*** Fixes to IDL mode.
It now does a better job in recognizing only the constructs relevant
to IDL.  E.g. it no longer matches "class" as the beginning of a
struct block, but it does match the CORBA 2.3 "valuetype" keyword.
Thanks to Eric Eide.

*** Improvements to the Whitesmith style.
It now keeps the style consistently on all levels and both when
opening braces hangs and when they don't.

**** New lineup function c-lineup-whitesmith-in-block.