NEWS 570 KB
Newer Older
Dave Love's avatar
Dave Love committed
1
GNU Emacs NEWS -- history of user-visible changes.  2003-05-21
2 3
Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005
          Free Software Foundation, Inc.
Dave Love's avatar
#  
Dave Love committed
4 5 6
See the end for copying conditions.

Please send Emacs bug reports to bug-gnu-emacs@gnu.org.
Gerd Moellmann's avatar
Gerd Moellmann committed
7
For older news, see the file ONEWS
8 9
You can narrow news to the specific version by calling
`view-emacs-news' with a prefix argument or by typing C-u C-h C-n.
Dave Love's avatar
#  
Dave Love committed
10

11 12 13 14
Temporary note:
 +++ indicates that the appropriate manual has already been updated.
 --- means no change in the manuals is called for.
When you add a new item, please add it without either +++ or ---
15
so we will look at it and add it to the manual.
16

17

18
* Installation Changes in Emacs 22.1
19

20
---
21 22 23
** Emacs now supports new configure options `--program-prefix',
`--program-suffix' and `--program-transform-name' that affect the names of
installed programs.
Juanma Barranquero's avatar
Juanma Barranquero committed
24

Luc Teirlinck's avatar
Luc Teirlinck committed
25
---
26
** Emacs can now be built without sound support.
Luc Teirlinck's avatar
Luc Teirlinck committed
27

28
---
Jan Djärv's avatar
Jan Djärv committed
29
** You can build Emacs with Gtk+ widgets by specifying `--with-x-toolkit=gtk'
Dave Love's avatar
Dave Love committed
30 31
when you run configure.  This requires Gtk+ 2.0 or newer.  This port
provides a way to display multilingual text in menus (with some caveats).
Jan Djärv's avatar
Jan Djärv committed
32

33
---
34
** The `emacsserver' program has been removed, replaced with Lisp code.
Stefan Monnier's avatar
Stefan Monnier committed
35

36
---
Colin Walters's avatar
Colin Walters committed
37
** By default, Emacs now uses a setgid helper program to update game
Colin Walters's avatar
Colin Walters committed
38
scores.  The directory ${localstatedir}/games/emacs is the normal
Richard M. Stallman's avatar
Richard M. Stallman committed
39
place for game scores to be stored.  You can control this with the
Colin Walters's avatar
Colin Walters committed
40 41
configure option `--with-game-dir'.  The specific user that Emacs uses
to own the game scores is controlled by `--with-game-user'.  If access
Colin Walters's avatar
Colin Walters committed
42 43
to a game user is not available, then scores will be stored separately
in each user's home directory.
Colin Walters's avatar
Colin Walters committed
44

45 46 47 48 49
---
** Leim is now part of the Emacs distribution.
You no longer need to download a separate tarball in order to build
Emacs with Leim.

50 51 52
+++
** The Emacs Lisp Reference Manual is now part of the distribution.

Richard M. Stallman's avatar
Richard M. Stallman committed
53
The Emacs Lisp Reference Manual in Info format is built as part of the
54 55 56 57 58 59 60 61 62 63 64 65 66
Emacs build procedure and installed together with the Emacs User
Manual.  A menu item was added to the menu bar that makes it easy
accessible (Help->More Manuals->Emacs Lisp Reference).

---
** The Introduction to Programming in Emacs Lisp manual is now part of
the distribution.

This manual is now part of the standard distribution and is installed,
together with the Emacs User Manual, into the Info directory.  A menu
item was added to the menu bar that makes it easy accessible
(Help->More Manuals->Introduction to Emacs Lisp).

67
---
Richard M. Stallman's avatar
Richard M. Stallman committed
68
** New translations of the Emacs Tutorial are available in the
Kim F. Storm's avatar
Kim F. Storm committed
69 70 71 72
following languages: Brasilian Portuguese, Bulgarian, Chinese (both
with simplified and traditional characters), French, and Italian.
Type `C-u C-h t' to choose one of them in case your language setup
doesn't automatically select the right one.
73 74 75 76 77 78 79 80 81 82

---
** A French translation of the `Emacs Survival Guide' is available.

---
** Emacs now includes support for loading image libraries on demand.
(Currently this feature is only used on MS Windows.)  You can configure
the supported image types and their associated dynamic libraries by
setting the variable `image-library-alist'.

83
---
Juanma Barranquero's avatar
Juanma Barranquero committed
84 85
** Support for Cygwin was added.

86
---
Gerd Moellmann's avatar
Gerd Moellmann committed
87 88
** Support for FreeBSD/Alpha has been added.

89 90 91
---
** Support for GNU/Linux systems on S390 machines was added.

Eli Zaretskii's avatar
Eli Zaretskii committed
92 93 94 95
---
** Support for MacOS X was added.
See the files mac/README and mac/INSTALL for build instructions.

96
---
Andreas Schwab's avatar
Andreas Schwab committed
97
** Support for GNU/Linux systems on X86-64 machines was added.
Stefan Monnier's avatar
Stefan Monnier committed
98

99
---
100 101 102 103
** Mac OS 9 port now uses the Carbon API by default.  You can also
create non-Carbon build by specifying `NonCarbon' as a target.  See
the files mac/README and mac/INSTALL for build instructions.

104
---
Stefan Monnier's avatar
Stefan Monnier committed
105 106
** Building with -DENABLE_CHECKING does not automatically build with union
types any more.  Add -DUSE_LISP_UNION_TYPE if you want union types.
107 108 109 110

---
** When pure storage overflows while dumping, Emacs now prints how
much pure storage it will approximately need.
Noah Friedman's avatar
Noah Friedman committed
111 112 113 114 115

** The script etc/emacs-buffer.gdb can be used with gdb to retrieve the
contents of buffers from a core dump and save them to files easily, should
emacs crash.

116 117 118 119 120
---
** The Emacs terminal emulation in term.el uses a different terminfo name.
The Emacs terminal emulation in term.el now uses "eterm-color" as its
terminfo name, since term.el now supports color.

121 122 123
---
** Emacs Lisp source files are compressed by default if `gzip' is available.

124

Richard M. Stallman's avatar
Richard M. Stallman committed
125
* Startup Changes in Emacs 22.1
126

Eli Zaretskii's avatar
Eli Zaretskii committed
127
+++
128 129 130
** New command line option -Q or --quick.
This is like using -q --no-site-file, but in addition it also disables
the fancy startup screen.
Kim F. Storm's avatar
Kim F. Storm committed
131

Nick Roberts's avatar
Nick Roberts committed
132
+++
133 134 135
** New command line option -D or --basic-display.
Disables the menu-bar, the tool-bar, the scroll-bars, tool tips, and
the blinking cursor.
Nick Roberts's avatar
Nick Roberts committed
136

Luc Teirlinck's avatar
Luc Teirlinck committed
137
+++
138 139
** New command line option -nbc or --no-blinking-cursor disables
the blinking cursor on graphical terminals.
Kenichi Handa's avatar
Kenichi Handa committed
140

Eli Zaretskii's avatar
Eli Zaretskii committed
141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157
+++
** The option --script FILE runs Emacs in batch mode and loads FILE.
It is useful for writing Emacs Lisp shell script files, because they
can start with this line:

   #!/usr/bin/emacs --script

+++
** The option --directory DIR now modifies `load-path' immediately.
Directories are added to the front of `load-path' in the order they
appear on the command line.  For example, with this command line:

  emacs -batch -L .. -L /tmp --eval "(require 'foo)"

Emacs looks for library `foo' in the parent directory, then in /tmp, then
in the other directories in `load-path'.  (-L is short for --directory.)

158
+++
159 160
** The command line option --no-windows has been changed to
--no-window-system.  The old one still works, but is deprecated.
161

162 163 164 165
+++
** The -f option, used from the command line to call a function,
now reads arguments for the function interactively if it is
an interactively callable function.
166

Richard M. Stallman's avatar
Richard M. Stallman committed
167 168 169 170 171
+++
** When you specify a frame size with --geometry, the size applies to
all frames you create.  A position specified with --geometry only
affects the initial frame.

172 173 174 175 176 177
+++
** Emacs can now be invoked in full-screen mode on a windowed display.
When Emacs is invoked on a window system, the new command-line options
`--fullwidth', `--fullheight', and `--fullscreen' produce a frame
whose width, height, or both width and height take up the entire
screen size.  (For now, this does not work with some window managers.)
Stefan Monnier's avatar
Stefan Monnier committed
178

179 180 181 182 183 184
+++
** Emacs now displays a splash screen by default even if command-line
arguments were given.  The new command-line option --no-splash
disables the splash screen; see also the variable
`inhibit-startup-message' (which is also aliased as
`inhibit-splash-screen').
185

Jan Djärv's avatar
Jan Djärv committed
186 187
+++
** The default is now to use an bitmap as the icon, so the command-line options
Jan Djärv's avatar
Jan Djärv committed
188
--icon-type, -i has been replaced with options --no-bitmap-icon, -nbi to turn
Jan Djärv's avatar
Jan Djärv committed
189 190
the bitmap icon off.

191 192 193 194
+++
** New user option `inhibit-startup-buffer-menu'.
When loading many files, for instance with `emacs *', Emacs normally
displays a buffer menu.  This option turns the buffer menu off.
Stefan Monnier's avatar
Stefan Monnier committed
195

196 197
+++
** Init file changes
198 199 200
If the init file ~/.emacs does not exist, Emacs will try
~/.emacs.d/init.el or ~/.emacs.d/init.elc.  You can also put the shell
init file .emacs_SHELL under ~/.emacs.d.
Kenichi Handa's avatar
Kenichi Handa committed
201

202
+++
203 204 205 206 207
** Emacs now reads the standard abbrevs file ~/.abbrev_defs
automatically at startup, if it exists.  When Emacs offers to save
modified buffers, it saves the abbrevs too if they have changed.  It
can do this either silently or asking for confirmation first,
according to the value of `save-abbrevs'.
208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242

* Incompatible Editing Changes in Emacs 22.1

+++
** M-g is now a prefix key.
M-g g and M-g M-g run goto-line.
M-g n and M-g M-n run next-error (like C-x `).
M-g p and M-g M-p run previous-error.

+++
** C-u M-g M-g switches to the most recent previous buffer,
and goes to the specified line in that buffer.

When goto-line starts to execute, if there's a number in the buffer at
point then it acts as the default argument for the minibuffer.

+++
** The old bindings C-M-delete and C-M-backspace have been deleted,
since there are situations where one or the other will shut down
the operating system or your X server.

+++
** line-move-ignore-invisible now defaults to t.

+++
** When the undo information of the current command gets really large
(beyond the value of `undo-outer-limit'), Emacs discards it and warns
you about it.

+++
** `apply-macro-to-region-lines' now operates on all lines that begin
in the region, rather than on all complete lines in the region.

+++
** A prefix argument is no longer required to repeat a jump to a
243 244 245
previous mark if you set `set-mark-command-repeat-pop' to t.  I.e. C-u
C-SPC C-SPC C-SPC ... cycles through the mark ring.  Use C-u C-u C-SPC
to set the mark immediately after a jump.
246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262

+++
** The info-search bindings on C-h C-f, C-h C-k and C-h C-i
have been moved to C-h F, C-h K and C-h S.

+++
** In incremental search, C-w is changed.  M-%, C-M-w and C-M-y are special.

See below under "incremental search changes".

---
** C-x C-f RET, typing nothing in the minibuffer, is no longer a special case.

Since the default input is the current directory, this has the effect
of specifying the current directory.  Normally that means to visit the
directory with Dired.

263 264 265
You can get the old behavior by typing C-x C-f M-n RET, which fetches
the actual file name into the minibuffer.

266 267 268 269 270
+++
** The completion commands TAB, SPC and ? in the minibuffer apply only
to the text before point.  If there is text in the buffer after point,
it remains unchanged.

271 272 273 274 275 276
** When Emacs prompts for file names, SPC no longer completes the file name.
This is so filenames with embedded spaces could be input without the
need to quote the space with a C-q.  The underlying changes in the
keymaps that are active in the minibuffer are described below under
"New keymaps for typing file names".

277 278 279 280 281 282
+++
** M-o now is the prefix key for setting text properties;
M-o M-o requests refontification.

+++
** You can now follow links by clicking Mouse-1 on the link.
283

284 285 286 287 288 289 290 291 292
See below for more details.

+++
** In Dired's ! command (dired-do-shell-command), `*' and `?' now
control substitution of the file names only when they are surrounded
by whitespace.  This means you can now use them as shell wildcards
too.  If you want to use just plain `*' as a wildcard, type `*""'; the
doublequotes make no difference in the shell, but they prevent
special treatment in `dired-do-shell-command'.
Richard M. Stallman's avatar
Richard M. Stallman committed
293 294 295

* Editing Changes in Emacs 22.1

296 297 298 299 300 301 302 303
+++
** !MEM FULL! at the start of the mode line indicates that Emacs
cannot get any more memory for Lisp data.  This often means it could
crash soon if you do things that use more memory.  On most systems,
killing buffers will get out of this state.  If killing buffers does
not make !MEM FULL! disappear, you should save your work and start
a new Emacs.

Richard M. Stallman's avatar
Richard M. Stallman committed
304 305 306 307
+++
** The max size of buffers and integers has been doubled.
On 32bit machines, it is now 256M (i.e. 268435455).

Richard M. Stallman's avatar
Richard M. Stallman committed
308
+++
309 310 311 312 313 314 315 316 317 318
** You can now switch buffers in a cyclic order with C-x C-left and
(prev-buffer) and C-x C-right (next-buffer).  C-x left and C-x right
can be used as well.

+++
** `undo-only' does an undo which does not redo any previous undo.

+++
** M-SPC (just-one-space) when given a numeric argument N
converts whitespace around point to N spaces.
Richard M. Stallman's avatar
Richard M. Stallman committed
319 320 321 322 323

---
** New commands to operate on pairs of open and close characters:
`insert-pair', `delete-pair', `raise-sexp'.

324 325 326
---
** New command `kill-whole-line' kills an entire line at once.
By default, it is bound to C-S-<backspace>.
327

Luc Teirlinck's avatar
Luc Teirlinck committed
328
+++
329 330 331 332
** Yanking text now discards certain text properties that can
be inconvenient when you did not expect them.  The variable
`yank-excluded-properties' specifies which ones.  Insertion
of register contents and rectangles also discards these properties.
Luc Teirlinck's avatar
Luc Teirlinck committed
333

334
+++
335 336 337
** The default values of paragraph-start and indent-line-function have
been changed to reflect those used in Text mode rather than those used
in Indented-Text mode.
338

Luc Teirlinck's avatar
Luc Teirlinck committed
339
+++
340
** M-x setenv now expands environment variable references.
Richard M. Stallman's avatar
Richard M. Stallman committed
341

342 343 344
Substrings of the form `$foo' and `${foo}' in the specified new value
now refer to the value of environment variable foo.  To include a `$'
in the value, use `$$'.
Richard M. Stallman's avatar
Richard M. Stallman committed
345 346

+++
347 348 349
** `special-display-buffer-names' and `special-display-regexps' now
understand two new boolean pseudo-frame-parameters `same-frame' and
`same-window'.
Richard M. Stallman's avatar
Richard M. Stallman committed
350 351 352 353 354

+++
** The default for the paper size (variable ps-paper-type) is taken
from the locale.

355 356 357 358
** The command `list-faces-display' now accepts a prefix arg.
When passed, the function prompts for a regular expression and lists
only faces matching this regexp.

Richard M. Stallman's avatar
Richard M. Stallman committed
359
** Mark command changes:
Juri Linkov's avatar
Juri Linkov committed
360

361
+++
Richard M. Stallman's avatar
Richard M. Stallman committed
362
*** A prefix argument is no longer required to repeat a jump to a
363 364
previous mark, i.e. C-u C-SPC C-SPC C-SPC ... cycles through the
mark ring.  Use C-u C-u C-SPC to set the mark immediately after a jump.
Juri Linkov's avatar
Juri Linkov committed
365

366
+++
367 368 369 370 371 372 373 374 375 376 377
*** Marking commands extend the region when invoked multiple times.

If you type C-M-SPC (mark-sexp), M-@ (mark-word), M-h
(mark-paragraph), or C-M-h (mark-defun) repeatedly, the marked region
extends each time, so you can mark the next two sexps with M-C-SPC
M-C-SPC, for example.  This feature also works for
mark-end-of-sentence, if you bind that to a key.  It also extends the
region when the mark is active in Transient Mark mode, regardless of
the last command.  To start a new region with one of marking commands
in Transient Mark mode, you can deactivate the active region with C-g,
or set the new mark with C-SPC.
Kenichi Handa's avatar
Kenichi Handa committed
378

379
+++
Richard M. Stallman's avatar
Richard M. Stallman committed
380
*** M-h (mark-paragraph) now accepts a prefix arg.
381

382 383 384
With positive arg, M-h marks the current and the following paragraphs;
if the arg is negative, it marks the current and the preceding
paragraphs.
Kenichi Handa's avatar
Kenichi Handa committed
385

386
+++
Richard M. Stallman's avatar
Richard M. Stallman committed
387
*** Some commands do something special in Transient Mark mode when the
388 389 390 391 392
mark is active--for instance, they limit their operation to the
region.  Even if you don't normally use Transient Mark mode, you might
want to get this behavior from a particular command.  There are two
ways you can enable Transient Mark mode and activate the mark, for one
command only.
Luc Teirlinck's avatar
Luc Teirlinck committed
393

394 395 396 397
One method is to type C-SPC C-SPC; this enables Transient Mark mode
and sets the mark at point.  The other method is to type C-u C-x C-x.
This enables Transient Mark mode temporarily but does not alter the
mark or the region.
Luc Teirlinck's avatar
Luc Teirlinck committed
398

399 400 401 402
After these commands, Transient Mark mode remains enabled until you
deactivate the mark.  That typically happens when you type a command
that alters the buffer, but you can also deactivate the mark by typing
C-g.
Luc Teirlinck's avatar
Luc Teirlinck committed
403

404 405 406 407 408
+++
*** Movement commands `beginning-of-buffer', `end-of-buffer',
`beginning-of-defun', `end-of-defun' do not set the mark if the mark
is already active in Transient Mark mode.

Richard M. Stallman's avatar
Richard M. Stallman committed
409 410 411 412 413 414 415
** Help command changes:

+++
*** Changes in C-h bindings:

C-h e displays the *Messages* buffer.

Kim F. Storm's avatar
Kim F. Storm committed
416 417
C-h d runs apropos-documentation.

Richard M. Stallman's avatar
Richard M. Stallman committed
418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459
C-h followed by a control character is used for displaying files
    that do not change:

C-h C-f displays the FAQ.
C-h C-e displays the PROBLEMS file.

The info-search bindings on C-h C-f, C-h C-k and C-h C-i
have been moved to C-h F, C-h K and C-h S.

C-h c, C-h k, C-h w, and C-h f now handle remapped interactive commands.
- C-h c and C-h k report the actual command (after possible remapping)
  run by the key sequence.
- C-h w and C-h f on a command which has been remapped now report the
  command it is remapped to, and the keys which can be used to run
  that command.

For example, if C-k is bound to kill-line, and kill-line is remapped
to new-kill-line, these commands now report:
- C-h c and C-h k C-k reports:
  C-k runs the command new-kill-line
- C-h w and C-h f kill-line reports:
  kill-line is remapped to new-kill-line which is on C-k, <deleteline>
- C-h w and C-h f new-kill-line reports:
  new-kill-line is on C-k

---
*** Help commands `describe-function' and `describe-key' now show function
arguments in lowercase italics on displays that support it.  To change the
default, customize face `help-argument-name' or redefine the function
`help-default-arg-highlight'.

+++
*** C-h v and C-h f commands now include a hyperlink to the C source for
variables and functions defined in C (if the C source is available).

+++
*** Help mode now only makes hyperlinks for faces when the face name is
preceded or followed by the word `face'.  It no longer makes
hyperlinks for variables without variable documentation, unless
preceded by one of the words `variable' or `option'.  It now makes
hyperlinks to Info anchors (or nodes) if the anchor (or node) name is
enclosed in single quotes and preceded by `info anchor' or `Info
460 461 462
anchor' (in addition to earlier `info node' and `Info node'). In
addition, it now makes hyperlinks to URLs as well if the URL is
enclosed in single quotes and preceded by `URL'.
Richard M. Stallman's avatar
Richard M. Stallman committed
463 464 465 466 467 468 469 470

+++
*** The new command `describe-char' (C-u C-x =) pops up a buffer with
description various information about a character, including its
encodings and syntax, its text properties, how to input, overlays, and
widgets at point.  You can get more information about some of them, by
clicking on mouse-sensitive areas or moving there and pressing RET.

Richard M. Stallman's avatar
Richard M. Stallman committed
471 472 473 474
+++
*** The command `list-text-properties-at' has been deleted because
C-u C-x = gives the same information and more.

Richard M. Stallman's avatar
Richard M. Stallman committed
475 476 477 478 479 480 481 482 483 484 485 486 487 488
+++
*** New command `display-local-help' displays any local help at point
in the echo area.  It is bound to `C-h .'.  It normally displays the
same string that would be displayed on mouse-over using the
`help-echo' property, but, in certain cases, it can display a more
keyboard oriented alternative.

+++
*** New user option `help-at-pt-display-when-idle' allows to
automatically show the help provided by `display-local-help' on
point-over, after suitable idle time.  The amount of idle time is
determined by the user option `help-at-pt-timer-delay' and defaults
to one second.  This feature is turned off by default.

Richard M. Stallman's avatar
Richard M. Stallman committed
489 490 491 492 493
+++
*** The apropos commands now accept a list of words to match.
When more than one word is specified, at least two of those words must
be present for an item to match.  Regular expression matching is still
available.
Richard M. Stallman's avatar
Richard M. Stallman committed
494 495

+++
Richard M. Stallman's avatar
Richard M. Stallman committed
496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537
*** The new option `apropos-sort-by-scores' causes the matching items
to be sorted according to their score.  The score for an item is a
number calculated to indicate how well the item matches the words or
regular expression that you entered to the apropos command.  The best
match is listed first, and the calculated score is shown for each
matching item.

** Incremental Search changes:

+++
*** Vertical scrolling is now possible within incremental search.
To enable this feature, customize the new user option
`isearch-allow-scroll'.  User written commands which satisfy stringent
constraints can be marked as "scrolling commands".  See the Emacs manual
for details.

+++
*** C-w in incremental search now grabs either a character or a word,
making the decision in a heuristic way.  This new job is done by the
command `isearch-yank-word-or-char'.  To restore the old behavior,
bind C-w to `isearch-yank-word' in `isearch-mode-map'.

+++
*** C-y in incremental search now grabs the next line if point is already
at the end of a line.

+++
*** C-M-w deletes and C-M-y grabs a character in isearch mode.
Another method to grab a character is to enter the minibuffer by `M-e'
and to type `C-f' at the end of the search string in the minibuffer.

+++
*** M-% typed in isearch mode invokes `query-replace' or
`query-replace-regexp' (depending on search mode) with the current
search string used as the string to replace.

+++
*** Isearch no longer adds `isearch-resume' commands to the command
history by default.  To enable this feature, customize the new
user option `isearch-resume-in-command-history'.

** Replace command changes:
Richard M. Stallman's avatar
Richard M. Stallman committed
538 539

---
Richard M. Stallman's avatar
Richard M. Stallman committed
540 541 542
*** New user option `query-replace-skip-read-only': when non-nil,
`query-replace' and related functions simply ignore
a match if part of it has a read-only property.
Richard M. Stallman's avatar
Richard M. Stallman committed
543

Richard M. Stallman's avatar
Richard M. Stallman committed
544 545 546 547 548 549 550 551 552 553
+++
*** When used interactively, the commands `query-replace-regexp' and
`replace-regexp' allow \,expr to be used in a replacement string,
where expr is an arbitrary Lisp expression evaluated at replacement
time.  In many cases, this will be more convenient than using
`query-replace-regexp-eval'.  `\#' in a replacement string now refers
to the count of replacements already made by the replacement command.
All regular expression replacement commands now allow `\?' in the
replacement string to specify a position where the replacement string
can be edited for each replacement.
Richard M. Stallman's avatar
Richard M. Stallman committed
554

Richard M. Stallman's avatar
Richard M. Stallman committed
555 556 557
+++
*** query-replace uses isearch lazy highlighting when the new user option
`query-replace-lazy-highlight' is non-nil.
Richard M. Stallman's avatar
Richard M. Stallman committed
558

Richard M. Stallman's avatar
Richard M. Stallman committed
559 560 561
---
*** The current match in query-replace is highlighted in new face
`query-replace' which by default inherits from isearch face.
Richard M. Stallman's avatar
Richard M. Stallman committed
562

Richard M. Stallman's avatar
Richard M. Stallman committed
563 564
** File operation changes:

565 566 567 568 569 570
+++
*** Unquoted `$' in file names do not signal an error any more when
the corresponding environment variable does not exist.
Instead, the `$ENVVAR' text is left as is, so that `$$' quoting
is only rarely needed.

Richard M. Stallman's avatar
Richard M. Stallman committed
571 572 573
+++
*** In processing a local variables list, Emacs strips the prefix and
suffix are from every line before processing all the lines.
Richard M. Stallman's avatar
Richard M. Stallman committed
574

575
+++
Richard M. Stallman's avatar
Richard M. Stallman committed
576
*** find-file-read-only visits multiple files in read-only mode,
577
when the file name contains wildcard characters.
578

579
+++
Richard M. Stallman's avatar
Richard M. Stallman committed
580
*** find-alternate-file replaces the current file with multiple files,
581
when the file name contains wildcard characters.
Kim F. Storm's avatar
Kim F. Storm committed
582

583
+++
Richard M. Stallman's avatar
Richard M. Stallman committed
584
*** Auto Compression mode is now enabled by default.
Kim F. Storm's avatar
Kim F. Storm committed
585

586
---
Richard M. Stallman's avatar
Richard M. Stallman committed
587
*** C-x C-f RET, typing nothing in the minibuffer, is no longer a special case.
588

589 590 591
Since the default input is the current directory, this has the effect
of specifying the current directory.  Normally that means to visit the
directory with Dired.
592

593
+++
Richard M. Stallman's avatar
Richard M. Stallman committed
594
*** When you are root, and you visit a file whose modes specify
595 596 597
read-only, the Emacs buffer is now read-only too.  Type C-x C-q if you
want to make the buffer writable.  (As root, you can in fact alter the
file.)
Kim F. Storm's avatar
Kim F. Storm committed
598

Juri Linkov's avatar
Juri Linkov committed
599
+++
Richard M. Stallman's avatar
Richard M. Stallman committed
600
*** C-x s (save-some-buffers) now offers an option `d' to diff a buffer
601
against its file, so you can see what changes you would be saving.
Juri Linkov's avatar
Juri Linkov committed
602

603
+++
Richard M. Stallman's avatar
Richard M. Stallman committed
604
*** The commands copy-file, rename-file, make-symbolic-link and
605 606 607 608 609
add-name-to-file, when given a directory as the "new name" argument,
convert it to a file name by merging in the within-directory part of
the existing file's name.  (This is the same convention that shell
commands cp, mv, and ln follow.)  Thus, M-x copy-file RET ~/foo RET
/tmp RET copies ~/foo to /tmp/foo.
Stefan Monnier's avatar
Stefan Monnier committed
610

611
---
Richard M. Stallman's avatar
Richard M. Stallman committed
612
*** When used interactively, `format-write-file' now asks for confirmation
Luc Teirlinck's avatar
Luc Teirlinck committed
613 614 615
before overwriting an existing file, unless a prefix argument is
supplied.  This behavior is analogous to `write-file'.

616
---
Richard M. Stallman's avatar
Richard M. Stallman committed
617
*** The variable `auto-save-file-name-transforms' now has a third element that
618 619
controls whether or not the function `make-auto-save-file-name' will
attempt to construct a unique auto-save name (e.g. for remote files).
Luc Teirlinck's avatar
Luc Teirlinck committed
620

621 622 623 624 625 626
+++
*** The new option `write-region-inhibit-fsync' disables calls to fsync
in `write-region'.  This can be useful on laptops to avoid spinning up
the hard drive upon each file save.  Enabling this variable may result
in data loss, use with care.

Richard M. Stallman's avatar
Richard M. Stallman committed
627 628
+++
*** If the user visits a file larger than `large-file-warning-threshold',
Richard M. Stallman's avatar
Richard M. Stallman committed
629
Emacs asks for confirmation.
Richard M. Stallman's avatar
Richard M. Stallman committed
630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649

+++
*** require-final-newline now has two new possible values:

`visit' means add a newline (as an undoable change) if it's needed
when visiting the file.

`visit-save' means add a newline (as an undoable change) if it's
needed when visiting the file, and also add a newline if it's needed
when saving the file.

+++
*** The new option mode-require-final-newline controls how certain
major modes enable require-final-newline.  Any major mode that's
designed for a kind of file that should normally end in a newline
sets require-final-newline based on mode-require-final-newline.
So you can customize mode-require-final-newline to control what these
modes do.

** Minibuffer changes:
Luc Teirlinck's avatar
Luc Teirlinck committed
650

Stefan Monnier's avatar
Stefan Monnier committed
651 652 653 654
+++
*** The new file-name-shadow-mode is turned ON by default, so that when
entering a file name, any prefix which Emacs will ignore is dimmed.

655
+++
Richard M. Stallman's avatar
Richard M. Stallman committed
656
*** There's a new face `minibuffer-prompt'.
657 658 659
Emacs adds this face to the list of text properties stored in the
variable `minibuffer-prompt-properties', which is used to display the
prompt string.
Luc Teirlinck's avatar
Luc Teirlinck committed
660

661
---
662
*** Enhanced visual feedback in `*Completions*' buffer.
663

664 665
Completions lists use faces to highlight what all completions
have in common and where they begin to differ.
666

667 668 669 670 671 672 673 674
The common prefix shared by all possible completions uses the face
`completions-common-part', while the first character that isn't the
same uses the face `completions-first-difference'.  By default,
`completions-common-part' inherits from `default', and
`completions-first-difference' inherits from `bold'.  The idea of
`completions-common-part' is that you can use it to make the common
parts less visible than normal, so that the rest of the differing
parts is, by contrast, slightly highlighted.
Stefan Monnier's avatar
Stefan Monnier committed
675

676 677 678 679 680 681
Above fontification is always done when listing completions is
triggered at minibuffer. If you want to fontify completions whose
listing is triggered at the other normal buffer, you have to pass
the common prefix of completions to `display-completion-list' as
its second argument.

682
+++
Richard M. Stallman's avatar
Richard M. Stallman committed
683
*** File-name completion can now ignore specified directories.
684 685 686 687 688
If an element of the list in `completion-ignored-extensions' ends in a
slash `/', it indicates a subdirectory that should be ignored when
completing file names.  Elements of `completion-ignored-extensions'
which do not end in a slash are never considered when a completion
candidate is a directory.
Stefan Monnier's avatar
Stefan Monnier committed
689

690
+++
Richard M. Stallman's avatar
Richard M. Stallman committed
691
*** The completion commands TAB, SPC and ? in the minibuffer apply only
692 693
to the text before point.  If there is text in the buffer after point,
it remains unchanged.
694

695
+++
Richard M. Stallman's avatar
Richard M. Stallman committed
696
*** New user option `history-delete-duplicates'.
697 698
If set to t when adding a new history element, all previous identical
elements are deleted.
699

Richard M. Stallman's avatar
Richard M. Stallman committed
700
** Redisplay changes:
Nick Roberts's avatar
Nick Roberts committed
701

702 703 704 705 706
+++
*** The mode line position information now comes before the major mode.
When the file is maintained under version control, that information
appears between the position information and the major mode.

707
+++
708
*** New face `escape-glyph' highlights control characters and escape glyphs.
709

710
+++
711 712 713
*** Non-breaking space and hyphens are now displayed with a special
face, either nobreak-space or escape-glyph.  You can turn this off or
specify a different mode by setting the variable `nobreak-char-display'.
714

715
+++
Richard M. Stallman's avatar
Richard M. Stallman committed
716 717 718 719 720 721 722 723 724 725 726 727 728 729
*** The parameters of automatic hscrolling can now be customized.
The variable `hscroll-margin' determines how many columns away from
the window edge point is allowed to get before automatic hscrolling
will horizontally scroll the window.  The default value is 5.

The variable `hscroll-step' determines how many columns automatic
hscrolling scrolls the window when point gets too close to the
window edge.  If its value is zero, the default, Emacs scrolls the
window so as to center point.  If its value is an integer, it says how
many columns to scroll.  If the value is a floating-point number, it
gives the fraction of the window's width to scroll the window.

The variable `automatic-hscrolling' was renamed to
`auto-hscroll-mode'.  The old name is still available as an alias.
Kim F. Storm's avatar
Kim F. Storm committed
730

Eli Zaretskii's avatar
Eli Zaretskii committed
731
---
Richard M. Stallman's avatar
Richard M. Stallman committed
732
*** Moving or scrolling through images (and other lines) taller that
733
the window now works sensibly, by automatically adjusting the window's
734
vscroll property.
735

Richard M. Stallman's avatar
Richard M. Stallman committed
736 737 738 739
+++
*** The new face `mode-line-inactive' is used to display the mode line
of non-selected windows.  The `mode-line' face is now used to display
the mode line of the currently selected window.
Stefan Monnier's avatar
Stefan Monnier committed
740

Richard M. Stallman's avatar
Richard M. Stallman committed
741 742 743 744 745 746 747 748 749
The new variable `mode-line-in-non-selected-windows' controls whether
the `mode-line-inactive' face is used.

+++
*** You can now customize the use of window fringes.  To control this
for all frames, use M-x fringe-mode or the Show/Hide submenu of the
top-level Options menu, or customize the `fringe-mode' variable.  To
control this for a specific frame, use the command M-x
set-fringe-style.
Juri Linkov's avatar
Juri Linkov committed
750

Richard M. Stallman's avatar
Richard M. Stallman committed
751
+++
Richard M. Stallman's avatar
Richard M. Stallman committed
752 753 754
*** Angle icons in the fringes can indicate the buffer boundaries.  In
addition, up and down arrow bitmaps in the fringe indicate which ways
the window can be scrolled.
755

Richard M. Stallman's avatar
Richard M. Stallman committed
756 757 758
This behavior is activated by setting the buffer-local variable
`indicate-buffer-boundaries' to a non-nil value.  The default value of
this variable is found in `default-indicate-buffer-boundaries'.
759

Richard M. Stallman's avatar
Richard M. Stallman committed
760 761
If value is `left' or `right', both angle and arrow bitmaps are
displayed in the left or right fringe, resp.
762

Juanma Barranquero's avatar
Juanma Barranquero committed
763
The value can also be an alist which specifies the presence and
Richard M. Stallman's avatar
Richard M. Stallman committed
764
position of each bitmap individually.
765

Richard M. Stallman's avatar
Richard M. Stallman committed
766 767 768 769
For example, ((top . left) (t .  right)) places the top angle bitmap
in left fringe, the bottom angle bitmap in right fringe, and both
arrow bitmaps in right fringe.  To show just the angle bitmaps in the
left fringe, but no arrow bitmaps, use ((top . left) (bottom . left)).
770

771
+++
Richard M. Stallman's avatar
Richard M. Stallman committed
772 773 774 775 776
*** On window systems, lines which are exactly as wide as the window
(not counting the final newline character) are no longer broken into
two lines on the display (with just the newline on the second line).
Instead, the newline now "overflows" into the right fringe, and the
cursor will be displayed in the fringe when positioned on that newline.
777

Richard M. Stallman's avatar
Richard M. Stallman committed
778
The new user option 'overflow-newline-into-fringe' can be set to nil to
Richard M. Stallman's avatar
Richard M. Stallman committed
779
revert to the old behavior of continuing such lines.
780

Richard M. Stallman's avatar
Richard M. Stallman committed
781
+++
Richard M. Stallman's avatar
Richard M. Stallman committed
782
*** When a window has display margin areas, the fringes are now
Richard M. Stallman's avatar
Richard M. Stallman committed
783
displayed between the margins and the buffer's text area, rather than
Richard M. Stallman's avatar
Richard M. Stallman committed
784
outside those margins.
Richard M. Stallman's avatar
Richard M. Stallman committed
785 786

+++
Richard M. Stallman's avatar
Richard M. Stallman committed
787
*** A window can now have individual fringe and scroll-bar settings,
Richard M. Stallman's avatar
Richard M. Stallman committed
788 789 790 791 792 793
in addition to the individual display margin settings.

Such individual settings are now preserved when windows are split
horizontally or vertically, a saved window configuration is restored,
or when the frame is resized.

Richard M. Stallman's avatar
Richard M. Stallman committed
794
** Cursor display changes:
795

796
+++
Richard M. Stallman's avatar
Richard M. Stallman committed
797
*** On X, MS Windows, and Mac OS, the blinking cursor's "off" state is
798
now controlled by the variable `blink-cursor-alist'.
799

800
+++
Richard M. Stallman's avatar
Richard M. Stallman committed
801
*** The X resource cursorBlink can be used to turn off cursor blinking.
802

803
+++
Richard M. Stallman's avatar
Richard M. Stallman committed
804
*** Emacs can produce an underscore-like (horizontal bar) cursor.
805 806 807
The underscore cursor is set by putting `(cursor-type . hbar)' in
default-frame-alist.  It supports variable heights, like the `bar'
cursor does.
808

809
+++
Richard M. Stallman's avatar
Richard M. Stallman committed
810
*** Display of hollow cursors now obeys the buffer-local value (if any)
811 812
of `cursor-in-non-selected-windows' in the buffer that the cursor
appears in.
813

814
+++
Richard M. Stallman's avatar
Richard M. Stallman committed
815
*** The variable `cursor-in-non-selected-windows' can now be set to any
816
of the recognized cursor types.
817

818 819 820 821 822 823 824 825 826 827 828 829 830 831 832
** New faces:

+++
*** `mode-line-highlight' is the standard face indicating mouse sensitive
elements on mode-line (and header-line) like `highlight' face on text
areas.

+++
*** `shadow' face defines the appearance of the "shadowed" text, i.e.
the text which should be less noticeable than the surrounding text.
This can be achieved by using shades of grey in contrast with either
black or white default foreground color.  This generic shadow face
allows customization of the appearance of shadowed text in one place,
so package-specific faces can inherit from it.

833 834 835
+++
*** `vertical-border' face is used for the vertical divider between windows.

Richard M. Stallman's avatar
Richard M. Stallman committed
836 837
** Font-Lock changes:

838 839 840 841
+++
*** M-o now is the prefix key for setting text properties;
M-o M-o requests refontification.

842
+++
Richard M. Stallman's avatar
Richard M. Stallman committed
843 844 845 846 847 848 849 850 851 852
*** All modes now support using M-x font-lock-mode to toggle
fontification, even those such as Occur, Info, and comint-derived
modes that do their own fontification in a special way.

The variable `Info-fontify' is no longer applicable; to disable
fontification in Info, remove `turn-on-font-lock' from
`Info-mode-hook'.

+++
*** font-lock-lines-before specifies a number of lines before the
Richard M. Stallman's avatar
Richard M. Stallman committed
853 854
current line that should be refontified when you change the buffer.
The default value is 1.
855

Richard M. Stallman's avatar
Richard M. Stallman committed
856 857 858 859 860 861
+++
*** font-lock: in modes like C and Lisp where the fontification assumes that
an open-paren in column 0 is always outside of any string or comment,
font-lock now highlights any such open-paren-in-column-zero in bold-red
if it is inside a string or a comment, to indicate that it can cause
trouble with fontification and/or indentation.
Richard M. Stallman's avatar
Richard M. Stallman committed
862

863 864 865
+++
*** New standard font-lock face `font-lock-preprocessor-face'.

Eli Zaretskii's avatar
Eli Zaretskii committed
866
+++
867 868
*** New standard font-lock face `font-lock-comment-delimiter-face'.

Eli Zaretskii's avatar
Eli Zaretskii committed
869
+++
Kim F. Storm's avatar
Kim F. Storm committed
870
*** Easy to overlook single character negation can now be font-locked.
871 872 873 874
You can use the new variable `font-lock-negation-char-face' and the face of
the same name to customize this.  Currently the cc-modes, sh-script-mode,
cperl-mode and make-mode support this.

Richard M. Stallman's avatar
Richard M. Stallman committed
875
---
Richard M. Stallman's avatar
Richard M. Stallman committed
876 877 878 879 880 881
*** The default settings for JIT stealth lock parameters are changed.
The default value for the user option jit-lock-stealth-time is now 16
instead of 3, and the default value of jit-lock-stealth-nice is now
0.5 instead of 0.125.  The new defaults should lower the CPU usage
when Emacs is fontifying in the background.

Richard M. Stallman's avatar
Richard M. Stallman committed
882
---
Richard M. Stallman's avatar
Richard M. Stallman committed
883 884 885 886 887 888 889
*** jit-lock can now be delayed with `jit-lock-defer-time'.

If this variable is non-nil, its value should be the amount of Emacs
idle time in seconds to wait before starting fontification.  For
example, if you set `jit-lock-defer-time' to 0.25, fontification will
only happen after 0.25s of idle time.

Richard M. Stallman's avatar
Richard M. Stallman committed
890
---
Richard M. Stallman's avatar
Richard M. Stallman committed
891 892 893 894 895 896
*** contextual refontification is now separate from stealth fontification.

jit-lock-defer-contextually is renamed jit-lock-contextually and
jit-lock-context-time determines the delay after which contextual
refontification takes place.

897
** Menu support:
Richard M. Stallman's avatar
Richard M. Stallman committed
898 899 900 901 902 903 904

---
*** A menu item "Show/Hide" was added to the top-level menu "Options".
This menu allows you to turn various display features on and off (such
as the fringes, the tool bar, the speedbar, and the menu bar itself).
You can also move the vertical scroll bar to either side here or turn
it off completely.  There is also a menu-item to toggle displaying of
905
current date and time, current line and column number in the mode-line.
Richard M. Stallman's avatar
Richard M. Stallman committed
906 907 908 909

---
*** Speedbar has moved from the "Tools" top level menu to "Show/Hide".

910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939
---
*** You can exit dialog windows and menus by typing C-g.

---
*** The menu item "Open File..." has been split into two items, "New File..."
and "Open File...".  "Open File..." now opens only existing files.  This is
to support existing GUI file selection dialogs better.

+++
*** The file selection dialog for Gtk+, Mac, W32 and Motif/Lesstif can be
disabled by customizing the variable `use-file-dialog'.

---
*** The pop up menus for Lucid now stay up if you do a fast click and can
be navigated with the arrow keys (like Gtk+, Mac and W32).

+++
*** The Lucid menus can display multilingual text in your locale.  You have
to explicitly specify a fontSet resource for this to work, for example
`-xrm "Emacs*fontSet:  -*-helvetica-medium-r-*--*-120-*-*-*-*-*-*,*"'.

---
*** Dialogs for Lucid/Athena and Lesstif/Motif now pops down when pressing
ESC, like they do for Gtk+, Mac and W32.

+++
*** For Gtk+ version 2.4, you can make Emacs use the old file dialog
by setting the variable `x-use-old-gtk-file-dialog' to t.  Default is to use
the new dialog.

Richard M. Stallman's avatar
Richard M. Stallman committed
940
** Mouse changes:
941

942
+++
Kim F. Storm's avatar
Kim F. Storm committed
943 944 945 946
*** If you set the new variable `mouse-autoselect-window' to a non-nil
value, windows are automatically selected as you move the mouse from
one Emacs window to another, even within a frame.  A minibuffer window
can be selected only when it is active.
Stefan Monnier's avatar
Stefan Monnier committed
947

948
+++
Richard M. Stallman's avatar
Richard M. Stallman committed
949
*** On X, when the window manager requires that you click on a frame to
950 951 952 953 954
select it (give it focus), the selected window and cursor position
normally changes according to the mouse click position.  If you set
the variable x-mouse-click-focus-ignore-position to t, the selected
window and cursor position do not change when you click on a frame
to give it focus.
Stefan Monnier's avatar
Stefan Monnier committed
955

Kim F. Storm's avatar
Kim F. Storm committed
956
+++
Richard M. Stallman's avatar
Richard M. Stallman committed
957
*** You can now follow links by clicking Mouse-1 on the link.
958 959 960 961 962

Traditionally, Emacs uses a Mouse-1 click to set point and a Mouse-2
click to follow a link, whereas most other applications use a Mouse-1
click for both purposes, depending on whether you click outside or
inside a link.  Now the behavior of a Mouse-1 click has been changed
Luc Teirlinck's avatar
Luc Teirlinck committed
963 964
to match this context-sentitive dual behavior.  (If you prefer the old
behavior, set the user option `mouse-1-click-follows-link' to nil.)
965

Richard M. Stallman's avatar
Richard M. Stallman committed
966
Depending on the current mode, a Mouse-2 click in Emacs can do much
967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985
more than just follow a link, so the new Mouse-1 behavior is only
activated for modes which explicitly mark a clickable text as a "link"
(see the new function `mouse-on-link-p' for details).  The Lisp
packages that are included in release 22.1 have been adapted to do
this, but external packages may not yet support this.  However, there
is no risk in using such packages, as the worst thing that could
happen is that you get the original Mouse-1 behavior when you click
on a link, which typically means that you set point where you click.

If you want to get the original Mouse-1 action also inside a link, you
just need to press the Mouse-1 button a little longer than a normal
click (i.e. press and hold the Mouse-1 button for half a second before
you release it).

Dragging the Mouse-1 inside a link still performs the original
drag-mouse-1 action, typically copy the text.

You can customize the new Mouse-1 behavior via the new user options
`mouse-1-click-follows-link' and `mouse-1-click-in-non-selected-windows'.
Juri Linkov's avatar
Juri Linkov committed
986

987
+++
Richard M. Stallman's avatar
Richard M. Stallman committed
988
*** Emacs normally highlights mouse sensitive text whenever the mouse
989 990 991 992
is over the text.  By setting the new variable `mouse-highlight', you
can optionally enable mouse highlighting only after you move the
mouse, so that highlighting disappears when you press a key.  You can
also disable mouse highlighting.
993 994

+++
Richard M. Stallman's avatar
Richard M. Stallman committed
995
*** You can now customize if selecting a region by dragging the mouse
996 997 998 999
shall not copy the selected text to the kill-ring by setting the new
variable mouse-drag-copy-region to nil.

---
Richard M. Stallman's avatar
Richard M. Stallman committed
1000
*** mouse-wheels can now scroll a specific fraction of the window
1001 1002 1003
(rather than a fixed number of lines) and the scrolling is `progressive'.

---
1004 1005 1006 1007 1008
*** Emacs ignores mouse-2 clicks while the mouse wheel is being moved.

People tend to push the mouse wheel (which counts as a mouse-2 click)
unintentionally while turning the wheel, so these clicks are now
ignored.  You can customize this with the mouse-wheel-click-event and
1009
mouse-wheel-inhibit-click-time variables.
Juri Linkov's avatar
Juri Linkov committed
1010 1011

+++
Richard M. Stallman's avatar
Richard M. Stallman committed
1012
*** Under X, mouse-wheel-mode is turned on by default.
Juri Linkov's avatar
Juri Linkov committed
1013

Kim F. Storm's avatar
Kim F. Storm committed
1014
** Multilingual Environment (Mule) changes:
1015 1016

---
Richard M. Stallman's avatar
Richard M. Stallman committed
1017
*** Language environment and various default coding systems are setup
1018 1019
more correctly according to the current locale name.  If the locale
name doesn't specify a charset, the default is what glibc defines.
Richard M. Stallman's avatar
Richard M. Stallman committed
1020
This change can result in using the different coding systems as
1021
default in some locale (e.g. vi_VN).
1022

1023
+++
Richard M. Stallman's avatar
Richard M. Stallman committed
1024
*** The keyboard-coding-system is now automatically set based on your
1025
current locale settings if you are not using a window system.  This
Richard M. Stallman's avatar
Richard M. Stallman committed
1026
can mean that the META key doesn't work but generates non-ASCII
1027 1028 1029 1030 1031
characters instead, depending on how the terminal (or terminal
emulator) works.  Use `set-keyboard-coding-system' (or customize
keyboard-coding-system) if you prefer META to work (the old default)
or if the locale doesn't describe the character set actually generated
by the keyboard.  See Info node `Single-Byte Character Support'.
Juri Linkov's avatar
Juri Linkov committed
1032 1033

+++
Richard M. Stallman's avatar
Richard M. Stallman committed
1034
*** The new command `revert-buffer-with-coding-system' (C-x RET r)
1035
revisits the current file using a coding system that you specify.
Juri Linkov's avatar
Juri Linkov committed
1036

1037
+++
Richard M. Stallman's avatar
Richard M. Stallman committed
1038
*** New command `recode-region' decodes the region again by a specified
1039
coding system.
Juri Linkov's avatar
Juri Linkov committed
1040 1041

+++
Richard M. Stallman's avatar
Richard M. Stallman committed
1042
*** The new command `recode-file-name' changes the encoding of the name
1043
of a file.
Juri Linkov's avatar
Juri Linkov committed
1044 1045

---
Richard M. Stallman's avatar
Richard M. Stallman committed
1046
*** New command `ucs-insert' inserts a character specified by its
1047
unicode.
Juri Linkov's avatar
Juri Linkov committed
1048

1049
+++
Richard M. Stallman's avatar
Richard M. Stallman committed
1050
*** The new command `set-file-name-coding-system' (C-x RET F) sets
1051 1052 1053
coding system for encoding and decoding file names.  A new menu item
(Options->Mule->Set Coding Systems->For File Name) invokes this
command.
1054

1055
+++
Richard M. Stallman's avatar
Richard M. Stallman committed
1056
*** New command quail-show-key shows what key (or key sequence) to type
1057
in the current input method to input a character at point.
1058

1059
+++
Richard M. Stallman's avatar
Richard M. Stallman committed
1060
*** Limited support for character `unification' has been added.
1061 1062 1063 1064 1065 1066
Emacs now knows how to translate between different representations of
the same characters in various Emacs charsets according to standard
Unicode mappings.  This applies mainly to characters in the ISO 8859
sets plus some other 8-bit sets, but can be extended.  For instance,
translation works amongst the Emacs ...-iso8859-... charsets and the
mule-unicode-... ones.
1067

1068 1069 1070 1071
By default this translation happens automatically on encoding.
Self-inserting characters are translated to make the input conformant
with the encoding of the buffer in which it's being used, where
possible.
1072

1073 1074 1075 1076 1077
You can force a more complete unification with the user option
unify-8859-on-decoding-mode.  That maps all the Latin-N character sets
into Unicode characters (from the latin-iso8859-1 and
mule-unicode-0100-24ff charsets) on decoding.  Note that this mode
will often effectively clobber data with an iso-2022 encoding.
1078

1079
---
Richard M. Stallman's avatar
Richard M. Stallman committed
1080
*** There is support for decoding Greek and Cyrillic characters into
1081 1082 1083
either Unicode (the mule-unicode charsets) or the iso-8859 charsets,
when possible.  The latter are more space-efficient.  This is
controlled by user option utf-fragment-on-decoding.
Luc Teirlinck's avatar
Luc Teirlinck committed
1084

1085
---
Richard M. Stallman's avatar
Richard M. Stallman committed
1086
*** New language environments: French, Ukrainian, Tajik,
1087 1088 1089 1090
Bulgarian, Belarusian, Ukrainian, UTF-8, Windows-1255, Welsh, Latin-6,
Latin-7, Lithuanian, Latvian, Swedish, Slovenian, Croatian, Georgian,
Italian, Russian, Malayalam, Tamil, Russian, Chinese-EUC-TW.  (Set up
automatically according to the locale.)
Juri Linkov's avatar
Juri Linkov committed
1091 1092

---
Richard M. Stallman's avatar
Richard M. Stallman committed
1093
*** New input methods: latin-alt-postfix, latin-postfix, latin-prefix,
1094 1095 1096 1097 1098
ukrainian-computer, belarusian, bulgarian-bds, russian-computer,
vietnamese-telex, lithuanian-numeric, lithuanian-keyboard,
latvian-keyboard, welsh, georgian, rfc1345, ucs, sgml,
bulgarian-phonetic, dutch, slovenian, croatian, malayalam-inscript,
tamil-inscript.
Juri Linkov's avatar
Juri Linkov committed
1099

1100
---
Richard M. Stallman's avatar
Richard M. Stallman committed
1101
*** New input method chinese-sisheng for inputting Chinese Pinyin
1102
characters.
1103

1104
---
Richard M. Stallman's avatar
Richard M. Stallman committed
1105
*** Improved Thai support.  A new minor mode `thai-word-mode' (which is
1106 1107 1108 1109 1110 1111 1112 1113 1114
automatically activated if you select Thai as a language
environment) changes key bindings of most word-oriented commands to
versions which recognize Thai words.  Affected commands are
    M-f     (forward-word)
    M-b     (backward-word)
    M-d     (kill-word)
    M-DEL   (backward-kill-word)
    M-t     (transpose-words)
    M-q     (fill-paragraph)
1115

1116
---
Richard M. Stallman's avatar
Richard M. Stallman committed
1117
*** Indian support has been updated.
1118 1119 1120 1121
The in-is13194 coding system is now Unicode-based.  CDAC fonts are
assumed.  There is a framework for supporting various
Indian scripts, but currently only Devanagari, Malayalam and Tamil are
supported.
1122

1123
---
Richard M. Stallman's avatar
Richard M. Stallman committed
1124
*** A UTF-7 coding system is available in the library `utf-7'.
1125

1126
---
Richard M. Stallman's avatar
Richard M. Stallman committed
1127
*** The utf-8/16 coding systems have been enhanced.
1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138
By default, untranslatable utf-8 sequences are simply composed into
single quasi-characters.  User option `utf-translate-cjk-mode' (it is
turned on by default) arranges to translate many utf-8 CJK character
sequences into real Emacs characters in a similar way to the Mule-UCS
system.  As this loads a fairly big data on demand, people who are not
interested in CJK characters may want to customize it to nil.
You can augment/amend the CJK translation via hash tables
`ucs-mule-cjk-to-unicode' and `ucs-unicode-to-mule-cjk'.  The utf-8
coding system now also encodes characters from most of Emacs's
one-dimensional internal charsets, specifically the ISO-8859 ones.
The utf-16 coding system is affected similarly.
1139

1140
---
Richard M. Stallman's avatar
Richard M. Stallman committed
1141
*** A new coding system `euc-tw' has been added for traditional Chinese
1142 1143
in CNS encoding; it accepts both Big 5 and CNS as input; on saving,
Big 5 is then converted to CNS.
Stefan Monnier's avatar
Stefan Monnier committed
1144

1145
---
1146 1147 1148 1149 1150
*** Many new coding systems are available in the `code-pages' library.
These include complete versions of most of those in codepage.el, based
on Unicode mappings.  `codepage-setup' is now obsolete and is used
only in the MS-DOS port of Emacs.  All coding systems defined in
`code-pages' are auto-loaded.
Stefan Monnier's avatar
Stefan Monnier committed
1151

1152
---
Richard M. Stallman's avatar
Richard M. Stallman committed
1153
*** New variable `utf-translate-cjk-unicode-range' controls which
1154
Unicode characters to translate in `utf-translate-cjk-mode'.
Stefan Monnier's avatar
Stefan Monnier committed
1155

1156
---
Richard M. Stallman's avatar
Richard M. Stallman committed
1157
*** iso-10646-1 (`Unicode') fonts can be used to display any range of
1158 1159
characters encodable by the utf-8 coding system.  Just specify the
fontset appropriately.
Stefan Monnier's avatar
Stefan Monnier committed
1160

Richard M. Stallman's avatar
Richard M. Stallman committed
1161
** Customize changes:
Kim F. Storm's avatar