NEWS 505 KB
Newer Older
Dave Love's avatar
Dave Love committed
1
GNU Emacs NEWS -- history of user-visible changes.  2003-05-21
Kim F. Storm's avatar
Kim F. Storm committed
2
Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004 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

8 9 10 11
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 ---
12
so we will look at it and add it to the manual.
13

14

Kim F. Storm's avatar
Kim F. Storm committed
15
* Installation Changes in Emacs 21.4
16

Luc Teirlinck's avatar
Luc Teirlinck committed
17 18 19
---
** A Bulgarian translation of the Emacs Tutorial is available.

Jan Djärv's avatar
Jan Djärv committed
20
** You can build Emacs with Gtk+ widgets by specifying `--with-x-toolkit=gtk'
Dave Love's avatar
Dave Love committed
21 22
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
23

24
---
25 26
** Emacs can now be built without sound support.

Stefan Monnier's avatar
Stefan Monnier committed
27 28
** The `emacsserver' program has been removed, replaced with elisp code.

29
---
30 31 32 33
** Emacs now supports new configure options `--program-prefix',
`--program-suffix' and `--program-transform-name' that affect the names of
installed programs.

34
---
Colin Walters's avatar
Colin Walters committed
35
** By default, Emacs now uses a setgid helper program to update game
Colin Walters's avatar
Colin Walters committed
36 37 38 39
scores.  The directory ${localstatedir}/games/emacs is the normal
place for game scores to be stored.  This may be controlled by the
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
40 41
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
42

43 44 45 46 47
---
** Leim is now part of the Emacs distribution.
You no longer need to download a separate tarball in order to build
Emacs with Leim.

48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
+++
** The Emacs Lisp Reference Manual is now part of the distribution.

The ELisp reference manual in Info format is built as part of the
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).

Juanma Barranquero's avatar
Juanma Barranquero committed
65 66
** Support for Cygwin was added.

67
---
Gerd Moellmann's avatar
Gerd Moellmann committed
68 69
** Support for FreeBSD/Alpha has been added.

70 71 72
---
** Support for GNU/Linux systems on S390 machines was added.

Eli Zaretskii's avatar
Eli Zaretskii committed
73 74 75 76
---
** Support for MacOS X was added.
See the files mac/README and mac/INSTALL for build instructions.

77
---
Andreas Schwab's avatar
Andreas Schwab committed
78
** Support for GNU/Linux systems on X86-64 machines was added.
Stefan Monnier's avatar
Stefan Monnier committed
79

80
---
81 82 83 84
** A French translation of the `Emacs Survival Guide' is available.

---
** A French translation of the Emacs Tutorial is available.
Stefan Monnier's avatar
Stefan Monnier committed
85 86
** Building with -DENABLE_CHECKING does not automatically build with union
types any more.  Add -DUSE_LISP_UNION_TYPE if you want union types.
87 88 89


* Changes in Emacs 21.4
90

91 92 93
** You can now use next-error (C-x `) and previous-error to advance to
the next/previous matching line found by M-x occur.

Kim F. Storm's avatar
Kim F. Storm committed
94 95
** Telnet will now prompt you for a port number with C-u M-x telnet.

Kim F. Storm's avatar
Kim F. Storm committed
96
+++
Kim F. Storm's avatar
Kim F. Storm committed
97 98 99 100 101 102
** New command line option -Q.

This is like using -q --no-site-file, but in addition it also disables
the menu-bar, the tool-bar, the scroll-bars, tool tips, the blinking
cursor, and the fancy startup screen.

Stefan Monnier's avatar
Stefan Monnier committed
103 104 105
** 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).

Luc Teirlinck's avatar
Luc Teirlinck committed
106 107 108 109 110 111 112 113 114 115 116 117 118
** When used interactively, `format-write-file' now asks for confirmation
before overwriting an existing file, unless a prefix argument is
supplied.  This behavior is analogous to `write-file'.

** You can now use Auto Revert mode to `tail' a file.
If point is at the end of a file buffer before reverting, Auto Revert
mode keeps it at the end after reverting.  Similarly if point is
displayed at the end of a file buffer in any window, it will stay at
the end of the buffer in that window.  This allows to tail a file:
just put point at the end of the buffer and it will stay there.  This
rule applies to file buffers.  For non-file buffers, the behavior may
be mode dependent.

Luc Teirlinck's avatar
Luc Teirlinck committed
119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138
** Auto Revert mode is now more careful to avoid excessive reverts and
other potential problems when deciding which non-file buffers to
revert.  This matters especially if Global Auto Revert mode is enabled
and `global-auto-revert-non-file-buffers' is non-nil.  Auto Revert
mode will only revert a non-file buffer if the buffer has a non-nil
`revert-buffer-function' and a non-nil `buffer-stale-function', which
decides whether the buffer should be reverted.  Currently, this means
that auto reverting works for Dired buffers (although this may not
work properly on all operating systems) and for the Buffer Menu.

** If the new user option `auto-revert-check-vc-info' is non-nil, Auto
Revert mode reliably updates version control info (such as the version
control number in the mode line), in all version controlled buffers in
which it is active.  If the option is nil, the default, then this info
only gets updated whenever the buffer gets reverted.

** New command `Buffer-menu-toggle-files-only' toggles display of file
buffers only in the Buffer Menu.  It is bound to `T' in Buffer Menu
mode.

139 140 141 142 143 144 145
** M-x compile has become more robust and reliable

Quite a few more kinds of messages are recognized.  Messages that are
recognized as warnings or informational come in orange or green, instead of
red.  Informational messages are by default skipped with `next-error'
(controlled by `compilation-skip-threshold').

146 147 148 149
Location data is collected on the fly as the *compilation* buffer changes.
This means you could modify messages to make them point to different files.
This also means you can not go to locations of messages you may have deleted.

150 151 152 153 154
The variable `compilation-error-regexp-alist' has now become customizable.  If
you had added your own regexps to this, you'll probably need to include a
leading `^', otherwise they'll match anywhere on a line.  There is now also a
`compilation-mode-font-lock-keywords' and it nicely handles all the checks
that configure outputs and -o options so you see at a glance where you are.
Stefan Monnier's avatar
Stefan Monnier committed
155 156 157 158 159 160 161 162 163 164

The new file etc/compilation.txt gives examples of each type of message.

** M-x grep has been adapted to new compile

Hits are fontified in green, and hits in binary files in orange.  Grep buffers
can be saved and will again be loaded with the new `grep-mode'.

** M-x diff uses diff-mode instead of compilation-mode.

Juri Linkov's avatar
Juri Linkov committed
165 166 167
** M-x compare-windows now can automatically skip non-matching text to
resync points in both windows.

168 169 170 171 172
** New command `strokes-global-set-stroke-string'.
This is like `strokes-global-set-stroke', but it allows you to bind
the stroke directly to a string to insert.  This is convenient for
using strokes as an input method.

173 174 175 176 177 178 179 180 181
---
** The saveplace.el package now filters out unreadable files.
When you exit Emacs, the saved positions in visited files no longer
include files that aren't readable, e.g. files that don't exist.
Customize the new option `save-place-forget-unreadable-files' to nil
to get the old behavior.  The new options `save-place-save-skipped'
and `save-place-skip-check-regexp' allow further fine-tuning of this
feature.

Stefan Monnier's avatar
Stefan Monnier committed
182 183 184 185 186 187 188
** You can have several Emacs servers on the same machine.

	% emacs --eval '(setq server-name "foo")' -f server-start &
	% emacs --eval '(setq server-name "bar")' -f server-start &
	% emacsclient -s foo file1
	% emacsclient -s bar file2

189 190 191 192 193 194 195 196 197
** 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.

The new user option 'overflow-newline-into-fringe' may be set to nil to
revert to the old behaviour of continuing such lines.

198 199 200 201
** The buffer boundaries (i.e. first and last line in the buffer) may
now be marked with angle bitmaps in the fringes.  In addition, up and
down arrow bitmaps may be shown at the top and bottom of the left or
right fringe if the window can be scrolled in either direction.
202 203

This behavior is activated by setting the buffer-local variable
204 205 206 207 208 209 210 211 212 213
`indicate-buffer-boundaries' to a non-nil value.  The default value of
this variable is found in `default-indicate-buffer-boundaries'.

If value is `left' or `right', both angle and arrow bitmaps are
displayed in the left or right fringe, resp.  Any other non-nil value
causes the bitmap on the top line to be displayed in the left fringe,
and the bitmap on the bottom line in the right fringe.

If value is a cons (ANGLES . ARROWS), the car specifies the position
of the angle bitmaps, and the cdr specifies the position of the arrow
214
bitmaps.
215 216 217 218

For example, (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
219
no arrow bitmaps, use (left . nil).
220

Luc Teirlinck's avatar
Luc Teirlinck committed
221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237
** 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.

** New commands `scan-buf-next-region' and `scan-buf-previous-region'
move to the start of the next (previous, respectively) region with
non-nil help-echo property and display any help found there in the
echo area, using `display-local-help'.

Luc Teirlinck's avatar
Luc Teirlinck committed
238 239 240 241
+++
** 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
Luc Teirlinck's avatar
Luc Teirlinck committed
242 243 244 245
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
anchor' (in addition to earlier `info node' and `Info node').
Luc Teirlinck's avatar
Luc Teirlinck committed
246

Stefan Monnier's avatar
Stefan Monnier committed
247 248 249
** The max size of buffers and integers has been doubled.
On 32bit machines, it is now 256M (i.e. 268435455).

250 251
+++
** The -f option, used from the command line to call a function,
Luc Teirlinck's avatar
Luc Teirlinck committed
252
now reads arguments for the function interactively if it is
253 254 255
an interactively callable function.


Juanma Barranquero's avatar
Juanma Barranquero committed
256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301
** sql changes.

*** The variable `sql-product' controls the highlightng of different
SQL dialects.  This variable can be set globally via Customize, on a
buffer-specific basis via local variable settings, or for the current
session using the new SQL->Product submenu.  (This menu replaces the
SQL->Highlighting submenu.)

The following values are supported:

    ansi	ANSI Standard (default)
    db2		DB2
    informix    Informix
    ingres      Ingres
    interbase	Interbase
    linter	Linter
    ms		Microsoft
    mysql	MySQL
    oracle	Oracle
    postgres	Postgres
    solid       Solid
    sqlite      SQLite
    sybase      Sybase

The current product name will be shown on the mode line following the
SQL mode indicator.

The technique of setting `sql-mode-font-lock-defaults' directly in
your .emacs will no longer establish the default highlighting -- Use
`sql-product' to accomplish this.

*** The function `sql-add-product-keywords' can be used to add
font-lock rules to the product specific rules.  For example, to have
all identifiers ending in "_t" under MS SQLServer treated as a type,
you would use the following line in your .emacs file:

  (sql-add-product-keywords 'ms
             '("\\<\\w+_t\\>" . font-lock-type-face))

*** Oracle support includes keyword highlighting for Oracle 9i.  Most
SQL and PL/SQL keywords are implemented.  SQL*Plus commands are
highlighted in `font-lock-doc-face'.

*** Microsoft SQLServer support has been significantly improved.
Keyword highlighting for SqlServer 2000 is implemented.
sql-interactive-mode defaults to use osql, rather than isql, because
Juanma Barranquero's avatar
Juanma Barranquero committed
302
osql flushes its error stream more frequently.  Thus error messages
Juanma Barranquero's avatar
Juanma Barranquero committed
303 304 305 306 307 308 309 310 311 312 313 314 315 316 317
are displayed when they occur rather than when the session is
terminated.

If the username and password are not provided to `sql-ms', osql is
called with the -E command line argument to use the operating system
credentials to authenticate the user.

*** Imenu support has been enhanced to locate tables, views, indexes,
packages, procedures, functions, triggers, sequences, rules, and
defaults.

*** Added SQL->Start SQLi Session menu entry which calls the
appropriate sql-interactive-mode wrapper for the current setting of
`sql-product'.

318 319 320
** M-x view-file and commands that use it now avoid interfering
with special modes such as Tar mode.

Kim F. Storm's avatar
Kim F. Storm committed
321 322 323 324 325 326 327 328 329 330 331 332 333
** Enhancements to apropos commands:

*** The apropos commands will 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.

*** 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.
334

335 336 337 338 339 340
+++
** 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.

** New minor mode, Visible mode, toggles invisibility in the current buffer.
Luc Teirlinck's avatar
Luc Teirlinck committed
341
When enabled, it makes all invisible text visible.  When disabled, it
Juanma Barranquero's avatar
Juanma Barranquero committed
342
restores the previous value of `buffer-invisibility-spec'.
Luc Teirlinck's avatar
Luc Teirlinck committed
343 344 345 346

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

Juri Linkov's avatar
Juri Linkov committed
347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371
** Dired mode:

*** New faces dired-header, dired-mark, dired-marked, dired-flagged,
dired-ignored, dired-directory, dired-symlink, dired-warning
introduced for Dired mode instead of font-lock faces.

*** New Dired command `dired-compare-directories' to mark files with
different file attributes in two dired buffers.

+++
*** 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'.

+++
*** Dired's v command now runs external viewers to view certain
types of files.  The variable `dired-view-command-alist' controls
what external viewers to use and when.

*** In Dired, the w command now copies the current line's file name
into the kill ring.

Jesper Harder's avatar
Jesper Harder committed
372
** Info mode:
Luc Teirlinck's avatar
Luc Teirlinck committed
373
+++
Jesper Harder's avatar
Jesper Harder committed
374
*** Info now hides node names in menus and cross references by default.
Luc Teirlinck's avatar
Luc Teirlinck committed
375 376 377
If you prefer the old behavior, you can set the new user option
`Info-hide-note-references' to nil.

Jesper Harder's avatar
Jesper Harder committed
378 379 380 381
*** The new command `info-apropos' searches the indices of the known
Info files on your system for a string, and builds a menu of the
possible matches.

Juri Linkov's avatar
Juri Linkov committed
382 383 384 385 386 387
+++
*** The default value for `Info-scroll-prefer-subnodes' is now nil.

---
*** Info-index offers completion.

Juanma Barranquero's avatar
Juanma Barranquero committed
388 389 390
** Support for the SQLite interpreter has been added to sql.el by calling
'sql-sqlite'.

Stefan Monnier's avatar
Stefan Monnier committed
391 392 393 394 395
** BibTeX mode:
*** New `bibtex-entry-format' option `required-fields', enabled by default.
*** bibtex-maintain-sorted-entries can take values `plain',
`crossref', and `entry-class' which control the sorting scheme used
for BibTeX entries. `bibtex-sort-entry-class' controls the sorting
396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416
scheme `entry-class'. TAB completion for reference keys and
automatic detection of duplicates does not require anymore that
bibtex-maintain-sorted-entries is non-nil.

*** If the new variable bibtex-parse-keys-fast is non-nil,
use fast but simplified algorithm for parsing BibTeX keys.

*** If the new variable bibtex-autoadd-commas is non-nil,
automatically add missing commas at end of BibTeX fields.

*** The new variable bibtex-autofill-types contains a list of entry
types for which fields are filled automatically (if possible).

*** The new command bibtex-complete completes word fragment before
point according to context (bound to M-tab).

*** The new commands bibtex-find-entry and bibtex-find-crossref
locate entries and crossref'd entries.

*** In BibTeX mode the command fill-paragraph (bound to M-q) fills
individual fields of a BibTeX entry.
Stefan Monnier's avatar
Stefan Monnier committed
417

418 419 420 421
** When display margins are present in a window, the fringes are now
displayed between the margins and the buffer's text area, rather than
at the edges of the window.

Juanma Barranquero's avatar
Juanma Barranquero committed
422
** A window may now have individual fringe and scroll-bar settings,
423 424 425
in addition to the individual display margin settings.

Such individual settings are now preserved when windows are split
Juanma Barranquero's avatar
Juanma Barranquero committed
426
horizontally or vertically, a saved window configuration is restored,
427 428
or when the frame is resized.

Kim F. Storm's avatar
Kim F. Storm committed
429 430 431
** New functions frame-current-scroll-bars and window-current-scroll-bars.

These functions return the current locations of the vertical and
Andreas Schwab's avatar
Andreas Schwab committed
432
horizontal scroll bars in a frame or window.
Kim F. Storm's avatar
Kim F. Storm committed
433

434 435 436 437 438
---
** Emacs now supports drag and drop for X.  Dropping a file on a window
   opens it, dropping text inserts the text.  Dropping a file on a dired
   buffer copies or moves the file to that directory.

Stefan Monnier's avatar
Stefan Monnier committed
439 440
** Under X, mouse-wheel-mode is turned on by default.

Dave Love's avatar
Dave Love committed
441 442 443
** The X resource useXIM can be used to turn off use of XIM, which may
speed up Emacs with slow networking to the X server.

Kim F. Storm's avatar
Kim F. Storm committed
444 445 446
If the configure option `--without-xim' was used to turn off use of
XIM by default, the X resource useXIM can be used to turn it on.

Stefan Monnier's avatar
Stefan Monnier committed
447
** `undo-only' does an undo which does not redo any previous undo.
Stefan Monnier's avatar
Stefan Monnier committed
448 449 450 451 452 453 454

** `uniquify-strip-common-suffix' tells uniquify to prefer
`file|dir1' and `file|dir2' to `file|dir1/subdir' and `file|dir2/subdir'.

** If the user visits a file larger than `large-file-warning-threshold',
Emacs will prompt her for confirmation.

Dave Love's avatar
Dave Love committed
455 456
** A UTF-7 coding system is available in the library `utf-7'.

Nick Roberts's avatar
Nick Roberts committed
457 458 459
** GUD mode has its own tool bar for controlling execution of the inferior
and other common debugger commands.

Juanma Barranquero's avatar
Juanma Barranquero committed
460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476
** recentf changes.

The recent file list is now automatically cleanup when recentf mode is
enabled.  The new option `recentf-auto-cleanup' controls when to do
automatic cleanup.

With the more advanced option: `recentf-filename-handler', you can
specify a function that transforms filenames handled by recentf.  For
example, if set to `file-truename', the same file will not be in the
recent list with different symbolic links.

To follow naming convention, `recentf-keep-non-readable-files-flag'
and `recentf-menu-append-commands-flag' respectively replace the
misnamed options `recentf-keep-non-readable-files-p' and
`recentf-menu-append-commands-p'.  The old names remain available as
aliases, but have been marked obsolete.

Dave Love's avatar
Dave Love committed
477 478
** The default for the paper size (variable ps-paper-type) is taken
from the locale.
Kenichi Handa's avatar
Kenichi Handa committed
479

480 481 482 483 484
** Init file changes

You can now put the init files .emacs and .emacs_SHELL under
~/.emacs.d or directly under ~.  Emacs will find them in either place.

Stefan Monnier's avatar
Stefan Monnier committed
485 486
** partial-completion-mode now does partial completion on directory names.

487 488 489 490 491 492 493
** skeleton.el now supports using - to mark the skeleton-point without
   interregion interaction.  @ has reverted to only setting
   skeleton-positions and no longer sets skeleton-point.  Skeletons
   which used @ to mark skeleton-point independent of _ should now use -
   instead.  The updated skeleton-insert docstring explains these new
   features along with other details of skeleton construction.

Bill Wohler's avatar
Bill Wohler committed
494 495
** MH-E changes.

Bill Wohler's avatar
Bill Wohler committed
496
Upgraded to MH-E version 7.3. There have been major changes since
Bill Wohler's avatar
Bill Wohler committed
497 498
version 5.0.2; see MH-E-NEWS for details.

499
+++
Dave Love's avatar
Dave Love committed
500 501 502 503 504
** The `emacsclient' command understands the options `--eval' and
`--display' which tell Emacs respectively to evaluate the given elisp
expression and to use the given display when visiting files.

** User option `server-mode' can be used to start a server process.
505

506 507 508 509
+++
** 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.
Francesco Potortì's avatar
Francesco Potortì committed
510

511 512 513
** C-x s (save-some-buffers) now offers an option `d' to diff a buffer
against its file, so you can see what changes you would be saving.

514 515 516 517 518 519
+++
** 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.
Simon Josefsson's avatar
Simon Josefsson committed
520

521
+++
522 523 524 525 526
** There is a new user option `mail-default-directory' that allows you
to specify the value of `default-directory' for mail buffers.  This
directory is used for auto-save files of mail buffers.  It defaults to
"~/".

527
+++
528 529 530 531 532
** When you are root, and you visit a file whose modes specify
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 will in fact be able
to alter the file.)

533 534 535
** The new command `revert-buffer-with-coding-system' (C-x RET r)
revisits the current file using a coding system that you specify.

Kenichi Handa's avatar
Kenichi Handa committed
536 537 538
** The new command `recode-file-name' changes the encoding of the name
of a file.

539
---
Dave Love's avatar
Dave Love committed
540
** `ps-print' can now print characters from the mule-unicode charsets.
541 542 543 544 545

Printing text with characters from the mule-unicode-* sets works with
ps-print, provided that you have installed the appropriate BDF fonts.
See the file INSTALL for URLs where you can find these fonts.

Eli Zaretskii's avatar
Eli Zaretskii committed
546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563
---
** The new options `buffers-menu-show-directories' and
`buffers-menu-show-status' let you control how buffers are displayed
in the menu dropped down when you click "Buffers" from the menu bar.

`buffers-menu-show-directories' controls whether the menu displays
leading directories as part of the file name visited by the buffer.
If its value is `unless-uniquify', the default, directories will be
shown unless uniquify-buffer-name-style' is non-nil.  The value of nil
and t turn the display of directories off and on, respectively.

`buffers-menu-show-status' controls whether the Buffers menu includes
the modified and read-only status of the buffers.  By default it is
t, and the status is shown.

Setting these variables directly does not take effect until next time
the Buffers menu is regenerated.

564
+++
565
** The commands M-x customize-face and M-x customize-face-other-window
566 567 568
now look at the character after point.  If a face or faces are
specified for that character, the commands by default customize those
faces.
569

Dave Love's avatar
Dave Love committed
570
** New language environments: French, Ukrainian, Tajik,
Dave Love's avatar
Dave Love committed
571
Bulgarian, Belarusian, Ukrainian, UTF-8, Windows-1255, Welsh, Latin-6,
Dave Love's avatar
Dave Love committed
572 573 574
Latin-7, Lithuanian, Latvian, Swedish, Slovenian, Croatian, Georgian,
Italian, Russian, Malayalam, Tamil, Russian, Chinese-EUC-TW.  (Set up
automatically according to the locale.)
Dave Love's avatar
Dave Love committed
575 576 577 578

** Indian support has been updated.
The in-is13194 coding system is now Unicode-based.  CDAC fonts are
assumed.  There is a framework for supporting various
Dave Love's avatar
Dave Love committed
579 580
Indian scripts, but currently only Devanagari, Malayalam and Tamil are
supported.
Dave Love's avatar
Dave Love committed
581

582
---
Dave Love's avatar
Dave Love committed
583 584 585 586
** New input methods: latin-alt-postfix, latin-postfix, latin-prefix,
ukrainian-computer, belarusian, bulgarian-bds, russian-computer,
vietnamese-telex, lithuanian-numeric, lithuanian-keyboard,
latvian-keyboard, welsh, georgian, rfc1345, ucs, sgml,
Dave Love's avatar
Dave Love committed
587 588
bulgarian-phonetic, dutch, slovenian, croatian, malayalam-inscript,
tamil-inscript.
Dave Love's avatar
Dave Love committed
589

590 591 592 593 594 595
---
** A new coding system `euc-tw' has been added for traditional Chinese
in CNS encoding; it accepts both Big 5 and CNS as input; on saving,
Big 5 is then converted to CNS.

---
Dave Love's avatar
Dave Love committed
596 597
** Many new coding systems are available by loading the `code-pages'
library.  These include complete versions of most of those in
598 599 600 601
codepage.el, based on Unicode mappings.  `codepage-setup' is now
obsolete and is used only in the MS-DOS port of Emacs.  windows-1252
and windows-1251 are preloaded since the former is so common and the
latter is used by GNU locales.
Dave Love's avatar
Dave Love committed
602

Dave Love's avatar
Dave Love committed
603 604 605 606 607 608 609 610 611
** The utf-8/16 coding systems have been enhanced.
By default, untranslatable utf-8 sequences (mostly representing CJK
characters) are simply composed into single quasi-characters.  User
option `utf-translate-cjk' arranges to translate many utf-8 CJK
character sequences into real Emacs characters in a similar way to the
Mule-UCS system.  This uses significant space, so is not the default.
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
612
one-dimensional internal charsets, specifically the ISO-8859 ones.
Dave Love's avatar
Dave Love committed
613
The utf-16 coding system is affected similarly.
Dave Love's avatar
Dave Love committed
614 615 616 617

** iso-10646-1 (`Unicode') fonts can be used to display any range of
characters encodable by the utf-8 coding system.  Just specify the
fontset appropriately.
Dave Love's avatar
Dave Love committed
618 619

** New command `ucs-insert' inserts a character specified by its
Dave Love's avatar
Dave Love committed
620
unicode.
Dave Love's avatar
Dave Love committed
621

622
+++
Dave Love's avatar
Dave Love committed
623 624 625 626 627 628 629 630 631 632 633 634
** Limited support for character `unification' has been added.
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.

By default this translation will happen 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.
Dave Love's avatar
Dave Love committed
635 636 637 638

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
Dave Love's avatar
Dave Love committed
639 640
mule-unicode-0100-24ff charsets) on decoding.  Note that this mode
will often effectively clobber data with an iso-2022 encoding.
Dave Love's avatar
Dave Love committed
641 642 643 644

** There is support for decoding Greek and Cyrillic characters into
either Unicode (the mule-unicode charsets) or the iso-8859 charsets,
when possible.  The latter are more space-efficient.  This is
645
controlled by user option utf-fragment-on-decoding.
Stefan Monnier's avatar
Stefan Monnier committed
646

Kenichi Handa's avatar
Kenichi Handa committed
647 648 649 650 651
** The new command `set-file-name-coding-system' (C-x RET F) sets
coding system for encoding and decoding file names.  A new menu item
(Options->Mule->Set Coding Systems->For File Name) invokes this
command.

652
---
653
** The scrollbar under LessTif or Motif has a smoother drag-scrolling.
Stefan Monnier's avatar
Stefan Monnier committed
654 655 656
On the other hand, the size of the thumb does not represent the actual
amount of text shown any more (only a crude approximation of it).

657 658 659 660 661 662 663
---
** 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+ and W32).

---
** Dialogs for Lucid/Athena and Lesstif/Motif pops down when pressing ESC.

664 665 666 667
+++
** The file selection dialog for Gtk+, W32 and Motif/Lesstif can be
disabled by customizing the variable `use-file-dialog'.

668 669 670 671 672 673
+++
** Emacs can produce an underscore-like (horizontal bar) cursor.
The underscore cursor is set by putting `(cursor-type . hbar)' in
default-frame-alist.  It supports variable heights, like the `bar'
cursor does.

674 675 676 677
+++
** On X, MS Windows, and Mac OS, the blinking cursor's "off" state is
now controlled by the variable `blink-cursor-alist'.

678 679 680 681 682 683 684 685
** Filesets are collections of files.  You can define a fileset in
various ways, such as based on a directory tree or based on
program files that include other program files.

Once you have defined a fileset, you can perform various operations on
all the files in it, such as visiting them or searching and replacing
in them.

Eli Zaretskii's avatar
Eli Zaretskii committed
686 687 688 689
---
** PO translation files are decoded according to their MIME headers
when Emacs visits them.

690
---
691 692 693 694 695 696
** The game `mpuz' is enhanced.

`mpuz' now allows the 2nd factor not to have two identical digits.  By
default, all trivial operations involving whole lines are performed
automatically.  The game uses faces for better visual feedback.

Kenichi Handa's avatar
Kenichi Handa committed
697 698 699 700 701
** The new variable `x-select-request-type' controls how Emacs
requests X selection.  The default value is nil, which means that
Emacs requests X selection with types COMPOUND_TEXT and UTF8_STRING,
and use the more appropriately result.

702 703
+++
** The parameters of automatic hscrolling can now be customized.
704 705 706
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.
707

708 709 710 711 712 713 714
The variable `hscroll-step' determines how many columns automatic
hscrolling will scroll 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.

715 716 717
The variable `automatic-hscrolling' was renamed to
`auto-hscroll-mode'.  The old name is still available as an alias.

Stefan Monnier's avatar
Stefan Monnier committed
718
** TeX modes:
Stefan Monnier's avatar
Stefan Monnier committed
719
*** C-c C-c prompts for a command to run, and tries to offer a good default.
720
+++
Stefan Monnier's avatar
Stefan Monnier committed
721
*** The user option `tex-start-options-string' has been replaced
722 723 724
by two new user options: `tex-start-options', which should hold
command-line options to feed to TeX, and `tex-start-commands' which should hold
TeX commands to use at startup.
Stefan Monnier's avatar
Stefan Monnier committed
725 726
*** verbatim environments are now highlighted in courier by font-lock
and super/sub-scripts are made into super/sub-scripts.
727

Stefan Monnier's avatar
Stefan Monnier committed
728 729
*** New major mode doctex-mode for *.dtx files.

730
+++
731 732 733 734 735 736
** New display feature: focus follows the mouse from one Emacs window
to another, even within a frame.  If you set the variable
mouse-autoselect-window to non-nil value, moving the mouse to a
different Emacs window will select that window (minibuffer window can
be selected only when it is active).  The default is nil, so that this
feature is not enabled.
Pavel Janík's avatar
Pavel Janík committed
737

738 739 740 741
** On X, when the window manager requires that you click on a frame to
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
Kim F. Storm's avatar
Typo.  
Kim F. Storm committed
742
window and cursor position do not change when you click on a frame
743 744
to give it focus.

745 746 747 748 749 750
+++
** 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, 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.
Eli Zaretskii's avatar
Eli Zaretskii committed
751

Colin Walters's avatar
Colin Walters committed
752 753 754 755 756 757 758
+++
** The new command `multi-occur' is just like `occur', except it can
search multiple buffers.  There is also a new command
`multi-occur-by-filename-regexp' which allows you to specify the
buffers to search by their filename.  Internally, Occur mode has been
rewritten, and now uses font-lock, among other changes.

759
+++
Richard M. Stallman's avatar
Richard M. Stallman committed
760 761 762 763 764
** Emacs normally highlights mouse sensitive text whenever the mouse
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.
765

766
+++
Stefan Monnier's avatar
Stefan Monnier committed
767 768 769 770 771 772
** 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.

773 774 775 776 777 778
+++
** There's a new face `minibuffer-prompt'.
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.

Eli Zaretskii's avatar
Eli Zaretskii committed
779
+++
780 781 782 783
** 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.

784 785 786
The new variable `mode-line-in-non-selected-windows' controls whether
the `mode-line-inactive' face is used.

787
---
Pavel Janík's avatar
Pavel Janík committed
788
** A menu item "Show/Hide" was added to the top-level menu "Options".
789 790 791 792 793 794
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
current date and time, current line and column number in the
mode-line.
Pavel Janík's avatar
Pavel Janík committed
795

796
---
797 798
** Speedbar has moved from the "Tools" top level menu to "Show/Hide".

799
+++
Dave Love's avatar
Dave Love committed
800
** Emacs can now indicate in the mode-line the presence of new e-mail
801
in a directory or in a file.  See the documentation of the user option
Pavel Janík's avatar
Pavel Janík committed
802
`display-time-mail-directory'.
803

804 805 806
---
** LDAP support now defaults to ldapsearch from OpenLDAP version 2.

807
+++
808
** You can now disable pc-selection-mode after enabling it.
809
M-x pc-selection-mode behaves like a proper minor mode, and with no
810 811 812 813 814
argument it toggles the mode.

Turning off PC-Selection mode restores the global key bindings
that were replaced by turning on the mode.

815
+++
Colin Walters's avatar
Colin Walters committed
816 817 818 819 820 821
** 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').

822 823
** Changes in support of colors on character terminals

824
+++
825
*** The new command-line option --color=MODE lets you specify a standard
826 827 828 829 830 831 832 833 834
mode for a tty color support.  It is meant to be used on character
terminals whose capabilities are not set correctly in the terminal
database, or with terminal emulators which support colors, but don't
set the TERM environment variable to a name of a color-capable
terminal.  "emacs --color" uses the same color commands as GNU `ls'
when invoked with "ls --color", so if your terminal can support colors
in "ls --color", it will support "emacs --color" as well.  See the
user manual for the possible values of the MODE parameter.

835 836 837 838 839 840 841
---
*** Emacs now supports several character terminals which provide more
than 8 colors.  For example, for `xterm', 16-color, 88-color, and
256-color modes are supported.  Emacs automatically notes at startup
the extended number of colors, and defines the appropriate entries for
all of these colors.

842 843 844 845 846 847 848
+++
*** Emacs now uses the full range of available colors for the default
faces when running on a color terminal, including 16-, 88-, and
256-color xterms.  This means that when you run "emacs -nw" on an
88-color or 256-color xterm, you will see essentially the same face
colors as on X.

849 850 851
---
*** There's a new support for colors on `rxvt' terminal emulator.

852 853 854 855 856 857
+++
** 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
858
screen size.  (For now, this does not work with some window managers.)
859

860
---
Colin Walters's avatar
Colin Walters committed
861
** Emacs now tries to set up buffer coding systems for HTML/XML files
862
automatically.
Colin Walters's avatar
Colin Walters committed
863

864
+++
865
** The new command `comint-insert-previous-argument' in comint-derived
866 867 868 869
modes (shell-mode etc) inserts arguments from previous command lines,
like bash's `ESC .' binding.  It is bound by default to `C-c .', but
otherwise behaves quite similarly to the bash version.

870
+++
871 872 873 874 875 876 877 878 879 880 881 882 883
** Changes in C-h bindings:

C-h e displays the *Messages* buffer.

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.

Kim F. Storm's avatar
Kim F. Storm committed
884 885 886 887 888 889 890 891 892 893
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
894
to new-kill-line, these commands now report:
Kim F. Storm's avatar
Kim F. Storm committed
895 896 897 898 899 900 901 902 903 904

- 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

905
+++
906 907 908 909 910
** 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'.

911
+++
912 913 914 915 916
** 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.

917
+++
Colin Walters's avatar
Colin Walters committed
918 919 920 921 922
** Occur, Info, and comint-derived modes now support using
M-x font-lock-mode to toggle fontification.  The variable
`Info-fontify' is no longer applicable; to disable fontification,
remove `turn-on-font-lock' from `Info-mode-hook'.

923
+++
924 925 926 927 928 929 930
** M-x grep now tries to avoid appending `/dev/null' to the command line
by using GNU grep `-H' option instead.  M-x grep will automatically
detect whether this is possible or not the first time it is invoked.
When `-H' is used, the grep command line supplied by the user is passed
unchanged to the system to execute, which allows more complicated
command lines to be used than was possible before.

931
---
932 933 934 935 936 937 938 939
** The face-customization widget has been reworked to be less confusing.
In particular, when you enable a face attribute using the corresponding
check-box, there's no longer a redundant `*' option in value selection
for that attribute; the values you can choose are only those which make
sense for the attribute.  When an attribute is de-selected by unchecking
its check-box, then the (now ignored, but still present temporarily in
case you re-select the attribute) value is hidden.

940
+++
941 942 943 944 945
** When you set or reset a variable's value in a Customize buffer,
the previous value becomes the "backup value" of the variable.
You can go back to that backup value by selecting "Use Backup Value"
under the "[State]" button.

Markus Rost's avatar
Markus Rost committed
946 947 948
** The new customization type `float' specifies numbers with floating
point (no integers are allowed).

949 950
+++
** In GUD mode, when talking to GDB, C-x C-a C-j "jumps" the program
951 952
counter to the specified source line (the one where point is).

953
---
954
** GUD mode improvements for jdb:
955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989

*** Search for source files using jdb classpath and class
    information. Fast startup since there is no need to scan all
    source files up front. There is also no need to create and maintain
    lists of source directories to scan. Look at `gud-jdb-use-classpath'
    and `gud-jdb-classpath' customization variables documentation.

*** Supports the standard breakpoint (gud-break, gud-clear)
    set/clear operations from java source files under the classpath, stack
    traversal (gud-up, gud-down), and run until current stack finish
    (gud-finish).

*** Supports new jdb (Java 1.2 and later) in addition to oldjdb
    (Java 1.1 jdb).

*** The previous method of searching for source files has been
    preserved in case someone still wants/needs to use it.
    Set gud-jdb-use-classpath to nil.

  Added Customization Variables

*** gud-jdb-command-name.  What command line to use to invoke jdb.

*** gud-jdb-use-classpath. Allows selection of java source file searching
    method: set to t for new method, nil to scan gud-jdb-directories for
    java sources (previous method).

*** gud-jdb-directories. List of directories to scan and search for java
    classes using the original gud-jdb method (if gud-jdb-use-classpath
    is nil).

  Minor Improvements

*** Do not allow debugger output history variable to grow without bounds.

990
+++
Stefan Monnier's avatar
Stefan Monnier committed
991 992
** hide-ifdef-mode now uses overlays rather than selective-display
to hide its text.  This should be mostly transparent but slightly
993
changes the behavior of motion commands like C-e and C-p.
Stefan Monnier's avatar
Stefan Monnier committed
994

995
+++
Stefan Monnier's avatar
Stefan Monnier committed
996 997 998 999 1000
** 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.

1001
---
Stefan Monnier's avatar
Stefan Monnier committed
1002 1003
** JIT-lock changes
*** jit-lock can now be delayed with `jit-lock-defer-time'.
1004 1005

If this variable is non-nil, its value should be the amount of Emacs
1006
idle time in seconds to wait before starting fontification.  For
1007 1008
example, if you set `jit-lock-defer-time' to 0.25, fontification will
only happen after 0.25s of idle time.
Stefan Monnier's avatar
Stefan Monnier committed
1009

Stefan Monnier's avatar
Stefan Monnier committed
1010 1011 1012 1013 1014 1015
*** 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.

1016 1017 1018 1019 1020 1021 1022
+++
** Marking commands extend the region when invoked multiple times.  If
you hit M-C-SPC (mark-sexp), M-@ (mark-word), M-h (mark-paragraph), or
C-M-h (mark-defun) repeatedly, the marked region will now be extended
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.
Stefan Monnier's avatar
Stefan Monnier committed
1023

1024
+++
1025 1026 1027 1028
** Some commands do something special in Transient Mark mode when the
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
1029 1030
ways you can enable Transient Mark mode and activate the mark, for one
command only.
1031

1032 1033 1034 1035
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.
1036

1037 1038 1039 1040
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.
1041

1042
+++
1043 1044 1045 1046
** A prefix argument is no longer required to repeat a jump to a
previous mark, i.e. C-u C-SPC C-SPC C-SPC ... will cycle through the
mark ring.  Use C-u C-u C-SPC to set the mark immediately after a jump.

1047
+++
1048 1049 1050
** In the *Occur* buffer, `o' switches to it in another window, and
C-o displays the current line's occurrence in another window without
switching to it.
1051

1052
+++
1053 1054 1055 1056
** 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.

Kai Großjohann's avatar
Kai Großjohann committed
1057
+++
1058 1059
** M-h (mark-paragraph) now accepts a prefix arg.
With positive arg, M-h marks the current and the following paragraphs;
1060 1061
if the arg is negative, it marks the current and the preceding
paragraphs.
Kai Großjohann's avatar
Kai Großjohann committed
1062

1063
+++
1064 1065 1066 1067 1068
** The variables dired-free-space-program and dired-free-space-args
have been renamed to directory-free-space-program and
directory-free-space-args, and they now apply whenever Emacs puts a
directory listing into a buffer.

1069
---
Stefan Monnier's avatar
Stefan Monnier committed
1070 1071 1072
** mouse-wheels can now scroll a specific fraction of the window
(rather than a fixed number of lines) and the scrolling is `progressive'.

Kim F. Storm's avatar
Kim F. Storm committed
1073 1074 1075 1076 1077
** Unexpected yanking of text due to accidental clicking on the mouse
wheel button (typically mouse-2) during wheel scrolling is now avoided.
This behaviour can be customized via the mouse-wheel-click-event and
mouse-wheel-inhibit-click-time variables.

1078
+++
1079 1080 1081 1082 1083 1084 1085 1086
** The keyboard-coding-system is now automatically set based on your
current locale settings if you are not using a window system.  This
may mean that the META key doesn't work but generates non-ASCII
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'.
Stefan Monnier's avatar
Stefan Monnier committed
1087

1088 1089
+++
** Emacs now reads the standard abbrevs file ~/.abbrev_defs
1090 1091 1092
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,
Pavel Janík's avatar
Pavel Janík committed
1093
according to the value of `save-abbrevs'.
1094

1095
+++
1096 1097 1098
** Display of hollow cursors now obeys the buffer-local value (if any)
of `cursor-in-non-selected-windows' in the buffer that the cursor
appears in.
Gerd Moellmann's avatar
Gerd Moellmann committed
1099

1100 1101
** The variable `cursor-in-non-selected-windows' can now be set to any
of the recognized cursor types.
Juanma Barranquero's avatar
Juanma Barranquero committed
1102

1103
---
1104 1105 1106 1107
** The variable `auto-save-file-name-transforms' now has a third element that
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).

1108 1109 1110
+++
** Diary sexp entries can have custom marking in the calendar.
Diary sexp functions which only apply to certain days (such as
Andreas Schwab's avatar
Andreas Schwab committed
1111
`diary-block' or `diary-cyclic') now take an optional parameter MARK,
1112 1113 1114 1115 1116 1117 1118
which is the name of a face or a single-character string indicating
how to highlight the day in the calendar display.  Specifying a
single-character string as @var{mark} places the character next to the
day in the calendar.  Specifying a face highlights the day with that
face.  This lets you have different colors or markings for vacations,
appointments, paydays or anything else using a sexp.

Glenn Morris's avatar
Glenn Morris committed
1119 1120 1121 1122 1123
+++
** The new function `calendar-goto-day-of-year' (g D) prompts for a
year and day number, and moves to that date. Negative day numbers
count backward from the end of the year.

Glenn Morris's avatar
Glenn Morris committed
1124 1125 1126 1127
** The function `simple-diary-display' now by default sets a header line.
This can be controlled through the variables `diary-header-line-flag'
and `diary-header-line-format'.

Glenn Morris's avatar
Glenn Morris committed
1128 1129 1130 1131 1132 1133
+++
** The procedure for activating appointment reminders has changed: use
the new function `appt-activate'. The new variable
`appt-display-format' controls how reminders are displayed, replacing
appt-issue-message, appt-visible, and appt-msg-window.

1134 1135
** VC Changes

André Spiegel's avatar
André Spiegel committed
1136 1137 1138 1139 1140 1141 1142 1143 1144 1145
*** The key C-x C-q no longer checks files in or out, it only changes
the read-only state of the buffer (toggle-read-only).  We made this
change because we held a poll and found that many users were unhappy
with the previous behavior.  If you do prefer this behavior, you
can bind `vc-toggle-read-only' to C-x C-q in your .emacs:

    (global-set-key "\C-x\C-q" 'vc-toggle-read-only)

The function `vc-toggle-read-only' will continue to exist.

1146
+++
1147 1148 1149 1150 1151 1152 1153
*** There is a new user option `vc-cvs-global-switches' that allows
you to specify switches that are passed to any CVS command invoked
by VC.  These switches are used as "global options" for CVS, which
means they are inserted before the command name.  For example, this
allows you to specify a compression level using the "-z#" option for
CVS.

Stefan Monnier's avatar
Stefan Monnier committed
1154 1155
*** New backends for Subversion and Meta-CVS.

1156 1157
** EDiff changes.

Michael Kifer's avatar
Michael Kifer committed
1158
+++
1159 1160 1161 1162 1163
***  When comparing directories.
Typing D brings up a buffer that lists the differences between the contents of
directories. Now it is possible to use this buffer to copy the missing files
from one directory to another.

Michael Kifer's avatar
Michael Kifer committed
1164
+++
1165 1166 1167 1168 1169 1170
*** When comparing files or buffers.
Typing the = key now offers to perform the word-by-word comparison of the
currently highlighted regions in an inferior Ediff session. If you answer 'n'
then it reverts to the old behavior and asks the user to select regions for
comparison.

1171
*** The new command `ediff-backup' compares a file with its most recent
1172 1173 1174
backup using `ediff'.  If you specify the name of a backup file,
`ediff-backup' compares it with the file of which it is a backup.

1175
+++
1176 1177
** Etags changes.

1178 1179 1180
*** New regular expressions features

**** New syntax for regular expressions, multi-line regular expressions.
1181 1182 1183 1184 1185
The syntax --ignore-case-regexp=/regex/ is now undocumented and retained
only for backward compatibility.  The new equivalent syntax is
--regex=/regex/i.  More generally, it is --regex=/TAGREGEX/TAGNAME/MODS,
where `/TAGNAME' is optional, as usual, and MODS is a string of 0 or
more characters among `i' (ignore case), `m' (multi-line) and `s'
1186 1187 1188 1189 1190 1191
(single-line).  The `m' and `s' modifiers behave as in Perl regular
expressions: `m' allows regexps to match more than one line, while `s'
(which implies `m') means that `.' matches newlines.  The ability to
span newlines allows writing of much more powerful regular expressions
and rapid prototyping for tagging new languages.

Francesco Potortì's avatar
Francesco Potortì committed
1192
**** Regular expressions can use char escape sequences as in Gcc.
1193 1194 1195 1196
The escaped character sequence \a, \b, \d, \e, \f, \n, \r, \t, \v,
respectively, stand for the ASCII characters BEL, BS, DEL, ESC, FF, NL,
CR, TAB, VT,

Francesco Potortì's avatar
Francesco Potortì committed
1197
**** Regular expressions can be bound to a given language.
1198 1199 1200 1201
The syntax --regex={LANGUAGE}REGEX means that REGEX is used to make tags
only for files of language LANGUAGE, and ignored otherwise.  This is
particularly useful when storing regexps in a file.

Francesco Potortì's avatar
Francesco Potortì committed
1202
**** Regular expressions can be read from a file.
1203 1204 1205
The --regex=@regexfile option means read the regexps from a file, one
per line.  Lines beginning with space or tab are ignored.

1206 1207
*** New language parsing features

Francesco Potortì's avatar
Francesco Potortì committed
1208 1209 1210
**** The `::' qualifier triggers C++ parsing in C file.
Previously, only the `template' and `class' keywords had this effect.

1211
**** In Perl, packages are tags.
1212 1213 1214 1215
Subroutine tags are named from their package.  You can jump to sub tags
as you did before, by the sub name, or additionally by looking for
package::sub.

Francesco Potortì's avatar
Francesco Potortì committed
1216 1217
**** New language PHP.
Tags are functions, classes and defines.
Francesco Potortì's avatar
etags  
Francesco Potortì committed
1218 1219
If the --members option is specified to etags, tags are vars also.

Francesco Potortì's avatar
Francesco Potortì committed
1220 1221 1222 1223
**** New language HTML.
Title and h1, h2, h3 are tagged.  Also, tags are generated when name= is
used inside an anchor and whenever id= is used.

1224
**** New default keywords for TeX.
1225 1226 1227
The new keywords are def, newcommand, renewcommand, newenvironment and
renewenvironment.

Francesco Potortì's avatar
Francesco Potortì committed
1228
**** In Makefiles, constants are tagged.
Richard M. Stallman's avatar
Richard M. Stallman committed
1229
If you want the old behavior instead, thus avoiding to increase the
Francesco Potortì's avatar
etags  
Francesco Potortì committed
1230 1231 1232
size of the tags file, use the --no-globals option.

**** In Prolog, etags creates tags for rules in addition to predicates.
1233 1234 1235 1236 1237 1238 1239

*** Honour #line directives.
When Etags parses an input file that contains C preprocessor's #line
directives, it creates tags using the file name and line number
specified in those directives.  This is useful when dealing with code
created from Cweb source files.  When Etags tags the generated file, it
writes tags pointing to the source file.
1240

Francesco Potortì's avatar
Francesco Potortì committed
1241
*** New option --parse-stdin=FILE.
1242
This option is mostly useful when calling etags from programs.  It can
Francesco Potortì's avatar
Francesco Potortì committed
1243
be used (only once) in place of a file name on the command line.  Etags
1244 1245
will read from standard input and mark the produced tags as belonging to
the file FILE.
1246

1247
+++
Martin Stjernholm's avatar
Martin Stjernholm committed
1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377
** CC Mode changes.

*** Font lock support.
CC Mode now provides font lock support for all its languages.  This
supersedes the font lock patterns that have been in the core font lock
package for C, C++, Java and Objective-C.  Like indentation, font
locking is done in a uniform way across all languages (except the new
AWK mode - see below).  That means that the new font locking will be
different from the old patterns in various details for most languages.

The main goal of the font locking in CC Mode is accuracy, to provide a
dependable aid in recognizing the various constructs.  Some, like
strings and comments, are easy to recognize while others like
declarations and types can be very tricky.  CC Mode can go to great
lengths to recognize declarations and casts correctly, especially when
the types aren't recognized by standard patterns.  This is a fairly
demanding analysis which can be slow on older hardware, and it can
therefore be disabled by choosing a lower decoration level with the
variable font-lock-maximum-decoration.

Note that the most demanding font lock level has been tuned with lazy
fontification in mind, i.e.  there should be a support mode that waits
with the fontification until the text is actually shown
(e.g. Just-in-time Lock mode, which is the default, or Lazy Lock
mode).  Fontifying a file with several thousand lines in one go can
take the better part of a minute.

**** The (c|c++|objc|java|idl|pike)-font-lock-extra-types variables
are now used by CC Mode to recognize identifiers that are certain to
be types.  (They are also used in cases that aren't related to font
locking.)  At the maximum decoration level, types are often recognized
properly anyway, so these variables should be fairly restrictive and
not contain patterns for uncertain types.

**** Support for documentation comments.
There is a "plugin" system to fontify documentation comments like
Javadoc and the markup within them.  It's independent of the host
language, so it's possible to e.g. turn on Javadoc font locking in C
buffers.  See the variable c-doc-comment-style for details.

Currently two kinds of doc comment styles are recognized: Suns Javadoc
and Autodoc which is used in Pike.  This is by no means a complete
list of the most common tools; if your doc comment extractor of choice
is missing then please drop a note to bug-cc-mode@gnu.org.

**** Better handling of C++ templates.
As a side effect of the more accurate font locking, C++ templates are
now handled much better.  The angle brackets that delimit them are
given parenthesis syntax so that they can be navigated like other
parens.

This also improves indentation of templates, although there still is
work to be done in that area.  E.g. it's required that multiline
template clauses are written in full and then refontified to be
recognized, and the indentation of nested templates is a bit odd and
not as configurable as it ought to be.

**** Improved handling of Objective-C and CORBA IDL.
Especially the support for Objective-C and IDL has gotten an overhaul.
The special "@" declarations in Objective-C are handled correctly.
All the keywords used in CORBA IDL, PSDL, and CIDL are recognized and
handled correctly, also wrt indentation.

*** Support for the AWK language.
Support for the AWK language has been introduced.  The implementation is
based around GNU AWK version 3.1, but it should work pretty well with
any AWK.  As yet, not all features of CC Mode have been adapted for AWK.
Here is a summary:

**** Indentation Engine
The CC Mode indentation engine fully supports AWK mode.

AWK mode handles code formatted in the conventional AWK fashion: `{'s
which start actions, user-defined functions, or compound statements are
placed on the same line as the associated construct; the matching `}'s
are normally placed under the start of the respective pattern, function
definition, or structured statement.

The predefined indentation functions haven't yet been adapted for AWK
mode, though some of them may work serendipitously.  There shouldn't be
any problems writing custom indentation functions for AWK mode.

The command C-c C-q (c-indent-defun) hasn't yet been adapted for AWK,
though in practice it works properly nearly all the time.  Should it
fail, explicitly set the region around the function (using C-u C-SPC:
C-M-h probably won't work either) then do C-M-\ (indent-region).

**** Font Locking
There is a single level of font locking in AWK mode, rather than the
three distinct levels the other modes have.  There are several
idiosyncrasies in AWK mode's font-locking due to the peculiarities of
the AWK language itself.

**** Comment Commands
M-; (indent-for-comment) works fine.  None of the other CC Mode
comment formatting commands have yet been adapted for AWK mode.

**** Movement Commands
Most of the movement commands work in AWK mode.  The most important
exceptions are M-a (c-beginning-of-statement) and M-e
(c-end-of-statement) which haven't yet been adapted.

The notion of "defun" has been augmented to include AWK pattern-action
pairs.  C-M-a (c-awk-beginning-of-defun) and C-M-e (c-awk-end-of-defun)
recognise these pattern-action pairs, as well as user defined
functions.

**** Auto-newline Insertion and Clean-ups
Auto-newline insertion hasn't yet been adapted for AWK.  Some of
the clean-ups can actually convert good AWK code into syntactically
invalid code.  These features are best disabled in AWK buffers.

*** New syntactic symbols in IDL mode.
The top level constructs "module" and "composition" (from CIDL) are
now handled like "namespace" in C++: They are given syntactic symbols
module-open, module-close, inmodule, composition-open,
composition-close, and incomposition.

*** New functions to do hungry delete without enabling hungry delete mode.
The functions c-hungry-backspace and c-hungry-delete-forward can be
bound to keys to get this feature without toggling a mode.
Contributed by Kevin Ryde.

*** Better control over require-final-newline.
The variable that controls how to handle a final newline when the
buffer is saved, require-final-newline, is now customizable on a
per-mode basis through c-require-final-newline.  The default is to set
it to t only in languages that mandate a final newline in source files
(C, C++ and Objective-C).

1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396
*** Format change for syntactic context elements.
The elements in the syntactic context returned by c-guess-basic-syntax
and stored in c-syntactic-context has been changed somewhat to allow
attaching more information.  They are now lists instead of single cons
cells.  E.g. a line that previously had the syntactic analysis

((inclass . 11) (topmost-intro . 13))

is now analysed as

((inclass 11) (topmost-intro 13))

In some cases there are more than one position given for a syntactic
symbol.

This change might affect code that call c-guess-basic-syntax directly,
and custom lineup functions if they use c-syntactic-context.  However,
the argument given to lineup functions is still a single cons cell
with nil or an integer in the cdr.
Martin Stjernholm's avatar
Martin Stjernholm committed
1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 <