NEWS 367 KB
Newer Older
1 2
GNU Emacs NEWS -- history of user-visible changes.  2001-01-16
Copyright (C) 1999, 2000, 2001 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

46 47 48 49
** The user option `backward-delete-char-untabify-method' controls the
behaviour of `backward-delete-char-untabify'.  [This change was made
in Emacs 20.3 but not mentioned then.]

Gerd Moellmann's avatar
Gerd Moellmann committed
50 51 52
** The new user-option `confirm-kill-emacs' can be customized to
let Emacs ask for confirmation before exiting.

Eli Zaretskii's avatar
Eli Zaretskii committed
53
** The <home> and <end> keys now move to the beginning or end of the
Gerd Moellmann's avatar
Gerd Moellmann committed
54 55 56
current line, respectively.  C-<home> and C-<end> move to the
beginning and end of the buffer.

Dave Love's avatar
Dave Love committed
57 58 59
** In Cperl mode `cperl-invalid-face' should now be a normal face
symbol, not double-quoted.

Dave Love's avatar
Dave Love committed
60
** Some packages are declared obsolete, to be removed in a future
Dave Love's avatar
Dave Love committed
61 62 63
version.  They are:  auto-show, c-mode, hilit19, hscroll, ooutline,
rnews, rnewspost.  Their implementations have been moved to
lisp/obsolete.
Dave Love's avatar
Dave Love committed
64

Dave Love's avatar
Dave Love committed
65 66 67 68
+++
** The new Custom option `keyboard-coding-system' specifies a coding
system for keyboard input.

Gerd Moellmann's avatar
Gerd Moellmann committed
69 70 71 72
+++
** The new user-option `even-window-heights' can be set to nil
to prevent `display-buffer' from evening out window heights.

73 74 75 76 77 78 79
+++
** 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
80
+++
Gerd Moellmann's avatar
Gerd Moellmann committed
81 82 83 84
** 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.

85
** The new command M-x delete-trailing-whitespace RET will delete the
86
trailing whitespace within the current restriction.  You can also add
87 88
this function to `write-file-hooks' or `local-write-file-hooks'.

Gerd Moellmann's avatar
Gerd Moellmann committed
89 90 91
** 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'.

92 93 94 95
** 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
96 97 98
** `browse-url-gnome-moz' is a new option for
`browse-url-browser-function', invoking Mozilla in GNOME.

99
+++
Gerd Moellmann's avatar
Gerd Moellmann committed
100 101 102
** The functions `keep-lines', `flush-lines' and `how-many' now
operate on the active region in Transient Mark mode.

103 104 105 106 107
** 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
108
+++
Dave Love's avatar
Dave Love committed
109 110 111 112 113 114 115
** `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
116
+++
Dave Love's avatar
Gnus  
Dave Love committed
117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132
** 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
133
this now has changed to
Dave Love's avatar
Gnus  
Dave Love committed
134 135 136 137 138 139 140 141 142 143

(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
144 145 146
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
147 148 149
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
150

Dave Love's avatar
Dave Love committed
151
*** Gnus has also been multilingualized.  This also affects too many
Dave Love's avatar
md5.  
Dave Love committed
152 153 154
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
155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173

*** 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
174
*** There is image support of various kinds and some sound support.
Dave Love's avatar
Gnus  
Dave Love committed
175 176

** When your terminal can't display characters from some of the ISO
Dave Love's avatar
Dave Love committed
177 178 179 180 181 182
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
183 184 185 186
** 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
187 188 189 190 191 192 193
** 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
194
** The Strokes package has been updated.  If your Emacs has XPM
Dave Love's avatar
Dave Love committed
195 196 197 198 199 200
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
201
+++
Gerd Moellmann's avatar
Gerd Moellmann committed
202
** New command M-x describe-character-set reads a character set name
Eli Zaretskii's avatar
Eli Zaretskii committed
203
and displays information about that.
Kenichi Handa's avatar
Kenichi Handa committed
204

Gerd Moellmann's avatar
Gerd Moellmann committed
205
** When an error is signaled during the loading of the user's init
Gerd Moellmann's avatar
Gerd Moellmann committed
206 207
file, Emacs now pops up the *Messages* buffer.

Gerd Moellmann's avatar
Gerd Moellmann committed
208 209 210
** 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
211

Dave Love's avatar
Dave Love committed
212 213
** An `Emacs Survival Guide', etc/survival.tex, is available.

Gerd Moellmann's avatar
Gerd Moellmann committed
214
** A reference card for Dired has been added.  Its name is
Gerd Moellmann's avatar
Gerd Moellmann committed
215 216
`dired-ref.tex'.  A French translation is available in
`fr-drdref.tex'.
Gerd Moellmann's avatar
Gerd Moellmann committed
217

Gerd Moellmann's avatar
Gerd Moellmann committed
218 219 220 221 222 223 224 225 226 227
** 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'.

228
+++
229 230 231 232 233
** 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
234 235 236
** Variable `load-path' is no longer customizable because it contains
a version-dependent component.

237
** The new user-option `delete-key-deletes-forward' can be set to
Gerd Moellmann's avatar
Gerd Moellmann committed
238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255
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
256

Dave Love's avatar
Dave Love committed
257 258 259
** Item Save Options on the Options menu allows saving options set
using that menu.

260
** New function executable-make-buffer-file-executable-if-script-p is
Dave Love's avatar
Dave Love committed
261
suitable as an after-save-hook as an alternative to `executable-chmod'.
262

263
+++
Dave Love's avatar
Dave Love committed
264 265 266 267 268 269 270 271
** 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.

272
+++
Gerd Moellmann's avatar
Gerd Moellmann committed
273 274 275 276 277
** 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
278
always want to read any escape code verbatim.  If you just want to
Gerd Moellmann's avatar
Gerd Moellmann committed
279
read a specific file without decoding escape codes, use C-x RET c
Kenichi Handa's avatar
Kenichi Handa committed
280 281
(`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
282

Dave Love's avatar
Dave Love committed
283 284 285
** Variable `default-korean-keyboard' is initialized properly from the
environment variable `HANGUL_KEYBOARD_TYPE'.

Dave Love's avatar
Dave Love committed
286
+++
Dave Love's avatar
Dave Love committed
287 288 289
** C-u C-x = provides detailed information about the character at
point in a pop-up window.

290
+++
Dave Love's avatar
Dave Love committed
291 292 293 294 295 296
** 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.

297
+++
298
** M-; now calls comment-dwim which tries to do something clever based
299
on the context.  M-x kill-comment is now an alias to comment-kill,
Stefan Monnier's avatar
Stefan Monnier committed
300 301
defined in newcomment.el.  You can choose different styles of region
commenting with the variable `comment-style'.
302

Dave Love's avatar
Dave Love committed
303
+++
Gerd Moellmann's avatar
Gerd Moellmann committed
304 305
** The function `getenv' is now callable interactively.

Dave Love's avatar
Dave Love committed
306 307 308
** The many obsolete language `setup-...-environment' commands have
been removed -- use `set-language-environment'.

Dave Love's avatar
Dave Love committed
309
+++
Dave Love's avatar
Dave Love committed
310 311 312 313 314
** 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
315
+++
Gerd Moellmann's avatar
Gerd Moellmann committed
316 317
** 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.
318
(On MS-DOS, this subdirectory's name is `_emacs.d/auto-save.list/'.)
Gerd Moellmann's avatar
Gerd Moellmann committed
319 320
You can customize `auto-save-list-prefix' to change this location.

Dave Love's avatar
Dave Love committed
321
+++
Gerd Moellmann's avatar
Gerd Moellmann committed
322 323 324
** On window-systems, additional space can be put between text lines
on the display using several methods

Dave Love's avatar
Dave Love committed
325
+++
Gerd Moellmann's avatar
Gerd Moellmann committed
326 327 328 329
- 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
330
+++
Gerd Moellmann's avatar
Gerd Moellmann committed
331
- By setting X resource `lineSpacing', class `LineSpacing'.  This is
Kenichi Handa's avatar
Kenichi Handa committed
332
equivalent to specifying the frame parameter.
Gerd Moellmann's avatar
Gerd Moellmann committed
333

Gerd Moellmann's avatar
Gerd Moellmann committed
334
- By specifying `--line-spacing=N' or `-lsp N' on the command line.
Gerd Moellmann's avatar
Gerd Moellmann committed
335 336 337 338

- 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
339
+++
Dave Love's avatar
Dave Love committed
340
** The new command `clone-indirect-buffer' can be used to create
Gerd Moellmann's avatar
Gerd Moellmann committed
341
an indirect buffer that is a twin copy of the current buffer.  The
Dave Love's avatar
Dave Love committed
342
command `clone-indirect-buffer-other-window', bound to C-x 4 c,
Gerd Moellmann's avatar
Gerd Moellmann committed
343
does the same but displays the indirect buffer in another window.
Gerd Moellmann's avatar
Gerd Moellmann committed
344

Dave Love's avatar
Dave Love committed
345
+++
346
** New user options `backup-directory-alist' and
Dave Love's avatar
Dave Love committed
347 348
`make-backup-file-name-function' control the placement of backups,
typically in a single directory or in an invisible sub-directory.
349

Dave Love's avatar
Dave Love committed
350 351 352
** New commands iso-iso2sgml and iso-sgml2iso convert between Latin-1
characters and the corresponding SGML (HTML) entities.

353
+++
Gerd Moellmann's avatar
Gerd Moellmann committed
354 355 356 357 358 359 360 361
** 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
362
+++
Gerd Moellmann's avatar
Gerd Moellmann committed
363
** New X resources recognized
Gerd Moellmann's avatar
Gerd Moellmann committed
364

Gerd Moellmann's avatar
Gerd Moellmann committed
365 366 367 368 369 370
*** 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
371
  emacs.synchronous: true
Gerd Moellmann's avatar
Gerd Moellmann committed
372

Gerd Moellmann's avatar
Gerd Moellmann committed
373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396
*** 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
397
  emacs.visualClass: TrueColor-8
Gerd Moellmann's avatar
Gerd Moellmann committed
398 399 400 401 402 403 404 405

*** 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
406
  emacs.privateColormap: true
Gerd Moellmann's avatar
Gerd Moellmann committed
407

408 409 410 411
** 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.

412
+++
Gerd Moellmann's avatar
Gerd Moellmann committed
413
** User-option `show-cursor-in-non-selected-windows' controls how to
Gerd Moellmann's avatar
Gerd Moellmann committed
414
display the cursor in non-selected windows.  If nil, no cursor is
Gerd Moellmann's avatar
Gerd Moellmann committed
415 416
shown, if non-nil a hollow box cursor is shown.  This option can
be customized.
Gerd Moellmann's avatar
Gerd Moellmann committed
417

Dave Love's avatar
Dave Love committed
418
+++
Dave Love's avatar
Dave Love committed
419 420
** The variable `echo-keystrokes' may now have a floating point value.

Dave Love's avatar
Dave Love committed
421
+++
Gerd Moellmann's avatar
Gerd Moellmann committed
422 423 424
** 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
425 426 427
** 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
428
** The help string specified for a menu-item whose definition contains
429 430 431 432
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.

433
+++
434 435
** Highlighting of mouse-sensitive regions is now supported in the
MS-DOS version of Emacs.
Gerd Moellmann's avatar
Gerd Moellmann committed
436

437 438 439
** New user option `read-mail-command' specifies a command to use to
read mail from the menu etc.

440
+++
Gerd Moellmann's avatar
Gerd Moellmann committed
441 442 443
** 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
444 445
** Changes in Texinfo mode.

Stefan Monnier's avatar
Stefan Monnier committed
446
*** A couple of new key bindings have been added for inserting Texinfo
Gerd Moellmann's avatar
Gerd Moellmann committed
447 448 449 450 451 452
macros

  Key binding	Macro
  -------------------------
  C-c C-c C-s	@strong
  C-c C-c C-e	@emph
453
  C-c C-c u	@uref
Gerd Moellmann's avatar
Gerd Moellmann committed
454
  C-c C-c q     @quotation
455
  C-c C-c m	@email
Stefan Monnier's avatar
Stefan Monnier committed
456 457 458 459
  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
460

461 462 463 464 465 466
** 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
467
** Changes to Emacs Server
Gerd Moellmann's avatar
Gerd Moellmann committed
468

469 470
+++
*** The new option `server-kill-new-buffers' specifies what to do
Gerd Moellmann's avatar
Gerd Moellmann committed
471 472 473 474 475 476
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,
477
i.e. buffers visited with `emacsclient --no-wait' are never killed in
Gerd Moellmann's avatar
Gerd Moellmann committed
478 479
this way.

Gerd Moellmann's avatar
Gerd Moellmann committed
480 481 482 483 484 485
** 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.

486
+++
Dave Love's avatar
Dave Love committed
487 488 489
** 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
490 491 492 493 494
+++
** 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
495

Dave Love's avatar
Dave Love committed
496
+++
William M. Perry's avatar
William M. Perry committed
497 498 499 500 501 502 503
** 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
504 505 506 507
** 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
508 509 510 511 512 513 514 515 516 517 518 519
** 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
520
`foreground-color' or `background-color' sets the colors of the
Dave Love's avatar
#  
Dave Love committed
521 522
`default' face and vice versa.

523
+++
Gerd Moellmann's avatar
Gerd Moellmann committed
524 525 526 527 528 529
** 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
530
+++
Dave Love's avatar
#  
Dave Love committed
531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564
** 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.

565
** New default font is Courier 12pt under X.
Dave Love's avatar
#  
Dave Love committed
566

Dave Love's avatar
Dave Love committed
567 568 569 570
+++
** 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
571 572 573 574 575 576

** 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
577 578 579 580 581 582
** 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
583 584 585

** LessTif support.

Dave Love's avatar
Dave Love committed
586 587
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
588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623

** 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
624
+++
Dave Love's avatar
#  
Dave Love committed
625 626 627 628 629 630 631 632 633
** 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.

634
+++
Dave Love's avatar
#  
Dave Love committed
635 636 637 638 639
** 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
640
+++
Dave Love's avatar
#  
Dave Love committed
641 642 643 644 645 646 647
** 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
648
+++
Dave Love's avatar
#  
Dave Love committed
649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667
** 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
668
+++
Dave Love's avatar
#  
Dave Love committed
669 670 671 672
*** The Lucid menu bar now supports the resource "margin".

	emacs.pane.menubar.margin: 5

673 674
The default margin is 4 which makes the menu bar appear like the
LessTif/Motif one.
Dave Love's avatar
#  
Dave Love committed
675

676 677
*** Arrows that indicate sub-menus are now drawn with shadows, as in
LessTif and Motif.
Dave Love's avatar
#  
Dave Love committed
678

679
+++
Dave Love's avatar
#  
Dave Love committed
680 681
** Hscrolling in C code.

Gerd Moellmann's avatar
Gerd Moellmann committed
682 683 684
Horizontal scrolling now happens automatically if
`automatic-hscrolling' is set (the default).  This setting can be
customized.
Dave Love's avatar
#  
Dave Love committed
685

Gerd Moellmann's avatar
Gerd Moellmann committed
686 687 688 689 690 691
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
692
+++
Dave Love's avatar
#  
Dave Love committed
693 694 695
** 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
696 697
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
698 699 700 701 702 703 704
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
705

Dave Love's avatar
Dave Love committed
706
+++
Dave Love's avatar
#  
Dave Love committed
707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724
** 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
725 726
- Mouse-2 on the read-only or modified status in the mode line (`%' or
`*') toggles the status.
Dave Love's avatar
#  
Dave Love committed
727

Dave Love's avatar
Dave Love committed
728
- Mouse-3 on the mode name displays a minor-mode menu.
Dave Love's avatar
#  
Dave Love committed
729 730 731 732

** 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
733
from a menu will pop up a file selection dialog if `use-dialog-box' is
Dave Love's avatar
#  
Dave Love committed
734 735 736 737 738 739 740 741 742
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
743 744
attributes such as `overline', `strike-through', and `box' are ignored
on terminals.
Dave Love's avatar
#  
Dave Love committed
745

746 747 748
The command-line options `-fg COLOR', `-bg COLOR', and `-rv' are now
supported on character terminals.

Dave Love's avatar
#  
Dave Love committed
749 750
** Sound support

Gerd Moellmann's avatar
Gerd Moellmann committed
751
Emacs supports playing sound files on GNU/Linux and FreeBSD (Voxware
752
driver and native BSD driver, a.k.a. Luigi's driver).  Currently
Gerd Moellmann's avatar
Gerd Moellmann committed
753
supported file formats are RIFF-WAVE (*.wav) and Sun Audio (*.au).
Dave Love's avatar
#  
Dave Love committed
754

Dave Love's avatar
Dave Love committed
755
+++
Dave Love's avatar
#  
Dave Love committed
756 757 758 759 760 761 762 763 764
** 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.

765
+++
Dave Love's avatar
#  
Dave Love committed
766 767 768 769 770 771
** 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.

772
+++
Dave Love's avatar
#  
Dave Love committed
773 774 775 776 777 778 779
** 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'.

780
+++
Dave Love's avatar
#  
Dave Love committed
781 782 783
** 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
784
value of the buffer-local variable `scroll-up-aggressively' is a
Dave Love's avatar
#  
Dave Love committed
785
number, Emacs chooses a new window start so that point ends up that
Gerd Moellmann's avatar
Gerd Moellmann committed
786
fraction of the window's height from the top of the window.
Dave Love's avatar
#  
Dave Love committed
787 788 789 790

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
791
fraction of the window's height from the bottom of the window.
Dave Love's avatar
#  
Dave Love committed
792 793 794 795 796 797 798

** 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
799
+++
Dave Love's avatar
Dave Love committed
800 801
There is a new command M-x replace-rectangle.

Dave Love's avatar
#  
Dave Love committed
802 803 804 805
** 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.

806
+++
Gerd Moellmann's avatar
Gerd Moellmann committed
807 808
** 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
809

Dave Love's avatar
Dave Love committed
810
** The new command mail-abbrev-complete-alias, bound to `M-TAB', lets
Gerd Moellmann's avatar
Gerd Moellmann committed
811 812 813
you complete mail aliases in the text, analogous to
lisp-complete-symbol.

814
+++
Dave Love's avatar
#  
Dave Love committed
815 816
** Emacs now resizes mini-windows if appropriate.

817
If a message is longer than one line, or minibuffer contents are
Gerd Moellmann's avatar
Gerd Moellmann committed
818 819 820
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
821 822 823 824 825

- 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
826
specifies a number of lines.
Dave Love's avatar
#  
Dave Love committed
827 828 829

Default is 0.25.

Gerd Moellmann's avatar
Gerd Moellmann committed
830 831 832
- 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
833
resize to fit the size of the text.  If `grow-only', let mini-windows
Gerd Moellmann's avatar
Gerd Moellmann committed
834 835 836 837 838
grow only, until they become empty, at which point they are shrunk
again.

Default is `grow-only'.

Gerd Moellmann's avatar
Gerd Moellmann committed
839 840
** The command `Info-search' now uses a search history.

Gerd Moellmann's avatar
Gerd Moellmann committed
841 842 843
** 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
844 845
selection and traversal, includes more isearch support, and has more
conventional keybindings.
Gerd Moellmann's avatar
Gerd Moellmann committed
846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875

*** 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
876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923
*** 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.

924 925
** Changes to Change Log mode and Add-Log functions

Dave Love's avatar
Dave Love committed
926
+++
Gerd Moellmann's avatar
Gerd Moellmann committed
927 928
*** 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
929 930
log entries by comparing a version with deleted functions.

Dave Love's avatar
Dave Love committed
931
+++
Gerd Moellmann's avatar
Gerd Moellmann committed
932 933
**** New command M-x change-log-merge merges another log into the
current buffer.
Dave Love's avatar
Dave Love committed
934 935

+++
Gerd Moellmann's avatar
Gerd Moellmann committed
936 937
*** New command M-x change-log-redate fixes any old-style date entries
in a log file.
Gerd Moellmann's avatar
Gerd Moellmann committed
938

939
+++
Gerd Moellmann's avatar
Gerd Moellmann committed
940 941
*** 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
942

943
+++
Gerd Moellmann's avatar
Gerd Moellmann committed
944
*** Unless the file is under version control the search for a file's
Dave Love's avatar
Dave Love committed
945 946 947
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
948

Stefan Monnier's avatar
Stefan Monnier committed
949
*** Change Log mode now defines its own faces for font-lock highlighting.
Gerd Moellmann's avatar
Gerd Moellmann committed
950

951 952 953 954 955
** Changes to cmuscheme

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

956 957 958
** Changes in Font Lock

*** The new function `font-lock-remove-keywords' can be used to remove
Stefan Monnier's avatar
Stefan Monnier committed
959
font-lock keywords from the current buffer or from a specific major mode.
960

Gerd Moellmann's avatar
Gerd Moellmann committed
961 962
*** Multiline patterns are now supported.  Modes using this, should
set font-lock-multiline to t in their font-lock-defaults.
Stefan Monnier's avatar
Stefan Monnier committed
963

Stefan Monnier's avatar
Stefan Monnier committed
964 965
*** `font-lock-syntactic-face-function' allows major-modes to choose
the face used for each string/comment.
966

Stefan Monnier's avatar
Stefan Monnier committed
967 968 969
*** 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
970 971
** Comint (subshell) changes

Miles Bader's avatar
Miles Bader committed
972 973 974 975 976 977 978 979 980 981 982 983 984
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
985 986
and redirect the output to a designated buffer or buffers.

Miles Bader's avatar
Miles Bader committed
987
*** The command M-x comint-redirect-send-command reads a command and
Gerd Moellmann's avatar
Gerd Moellmann committed
988 989 990 991 992 993 994
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
995 996 997
*** 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
998

Miles Bader's avatar
Miles Bader committed
999
*** The new command `comint-write-output' (usually bound to `C-c C-s')
Miles Bader's avatar
Miles Bader committed
1000 1001 1002
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
1003
*** The command `comint-kill-output' has been renamed `comint-delete-output'
Miles Bader's avatar
Miles Bader committed
1004 1005 1006
(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
1007 1008
*** The new function `comint-add-to-input-history' adds commands to the input
ring (history).
Miles Bader's avatar
Miles Bader committed
1009

Gerd Moellmann's avatar
Gerd Moellmann committed
1010
*** The new variable `comint-input-history-ignore' is a regexp for
Gerd Moellmann's avatar
Gerd Moellmann committed
1011 1012
identifying history lines that should be ignored, like tcsh time-stamp
strings, starting with a `#'.  The default value of this variable is "^#".
Gerd Moellmann's avatar
Gerd Moellmann committed
1013

Gerd Moellmann's avatar
Gerd Moellmann committed
1014 1015
** Changes to Rmail mode

Dave Love's avatar
Dave Love committed
1016
*** The new user-option rmail-user-mail-address-regexp can be
Gerd Moellmann's avatar
Gerd Moellmann committed
1017 1018 1019 1020 1021 1022 1023 1024
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
1025
regexp matching your mail addresses.
Gerd Moellmann's avatar
Gerd Moellmann committed
1026

Gerd Moellmann's avatar
Gerd Moellmann committed
1027 1028 1029 1030 1031 1032
*** 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
1033 1034 1035
*** RET is now bound in the Rmail summary to rmail-summary-goto-msg,
like `j'.

1036 1037
*** There is a new user option `rmail-digest-end-regexps' that
specifies the regular expressions to detect the line that ends a
1038
digest message.
Gerd Moellmann's avatar
Gerd Moellmann committed
1039

Dave Love's avatar
Dave Love committed
1040 1041 1042
*** The new user option `rmail-automatic-folder-directives' specifies
in which folder to put messages automatically.

Gerd Moellmann's avatar
Gerd Moellmann committed
1043 1044
** Changes to TeX mode

Stefan Monnier's avatar
Stefan Monnier committed
1045
*** The default mode has been changed from `plain-tex-mode' to
Gerd Moellmann's avatar
Gerd Moellmann committed
1046 1047
`latex-mode'.

Stefan Monnier's avatar
Stefan Monnier committed
1048 1049 1050 1051 1052
*** latex-mode now has a simple indentation algorithm.

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

*** Added support for outline-minor-mode.
1053

Dave Love's avatar
#  
Dave Love committed
1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074
** 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.

1075 1076 1077 1078 1079
** 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
1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094
** 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.

1095
** Partial Completion mode now completes environment variables in
Gerd Moellmann's avatar
Gerd Moellmann committed
1096 1097
file names.

Dave Love's avatar
Dave Love committed
1098
+++
Dave Love's avatar
#  
Dave Love committed
1099 1100 1101
** Tooltips.

Tooltips are small X windows displaying a help string at the current
Dave Love's avatar
Dave Love committed
1102 1103
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
1104 1105 1106 1107 1108 1109

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
1110
+++
Dave Love's avatar
#  
Dave Love committed
1111 1112 1113
** Customize changes

*** Customize now supports comments about customized items.  Use the
Dave Love's avatar
Dave Love committed
1114 1115
`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
1116 1117 1118 1119 1120

*** 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).

1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135
*** 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
1136 1137
** New features in evaluation commands

Gerd Moellmann's avatar
Gerd Moellmann committed
1138
*** The commands to evaluate Lisp expressions, such as C-M-x in Lisp
Dave Love's avatar
#  
Dave Love committed
1139 1140 1141 1142 1143
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
1144 1145 1146
*** 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
1147 1148
** Ispell changes

1149
+++
1150 1151
*** 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
1152 1153
spell-checks the current buffer.

1154
+++
Gerd Moellmann's avatar
Gerd Moellmann committed
1155 1156 1157 1158 1159 1160
*** 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
1161
*** An Italian and a Portuguese dictionary definition has been added.
Gerd Moellmann's avatar
Gerd Moellmann committed
1162 1163 1164 1165 1166 1167 1168 1169 1170 1171

*** 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
1172 1173 1174 1175 1176 1177 1178 1179 1180 1181
** 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.

1182 1183 1184 1185
*** 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
1186 1187 1188 1189
*** The new command `dired-find-alternate-file' (usually bound to `a')
replaces the Dired buffer with the buffer for an alternate file or
directory.

1190 1191 1192