NEWS 23.7 KB
Newer Older
1
GNU Emacs NEWS -- history of user-visible changes.
2

3
Copyright (C) 2007 Free Software Foundation, Inc.
4
See the end of the file for license conditions.
Dave Love's avatar
#  
Dave Love committed
5

6
Please send Emacs bug reports to emacs-pretest-bug@gnu.org.
7 8
If possible, use M-x report-emacs-bug.

9
This file is about changes in Emacs version 23.
10

11 12
See files NEWS.22, NEWS.21, NEWS.20, NEWS.19, NEWS.18, and NEWS.1-17
for changes in older Emacs versions.
13 14 15

You can narrow news to a specific version by calling `view-emacs-news'
with a prefix argument or by typing C-u C-h C-n.
16 17 18 19 20 21 22

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 ---
so we will look at it and add it to the manual.

23 24 25

* About external Lisp packages

26

27
* Installation Changes in Emacs 23.1
28

29 30
** The default X toolkit is now Gtk+, rather than Lucid.

31 32 33
** The Mac Carbon port is no longer supported.
Instead, use... [what?]

34 35
** configure now checks for libgif before libungif when searching for
a GIF library.
Glenn Morris's avatar
Glenn Morris committed
36

Glenn Morris's avatar
Glenn Morris committed
37 38
** Support for systems without alloca has been removed.

39 40
** Support for Sun windows has been removed.

Glenn Morris's avatar
Glenn Morris committed
41 42
** The `emacstool' utility has been removed.

Michael Albinus's avatar
Michael Albinus committed
43 44
** The new configuration option "--with-dbus" enables D-Bus language
bindings for Emacs.
Nick Roberts's avatar
Nick Roberts committed
45 46 47

* Changes in Emacs 23.1

48 49 50 51 52 53
** Emacs now supports using both X displays and ttys in one session.
You can also use any number of different ttys.

You can test for the presence of this feature in your Lisp code by
testing for the `multi-tty' feature.

Thien-Thi Nguyen's avatar
Thien-Thi Nguyen committed
54 55 56 57
** Emacs comes with a new set of icons for Mac OS X.
OS-X-style icons (an application icon and a relevant document icon)
were contributed by Kentaro Ohkouchi.
Source files for these icons can be found in Emacs.app/Contents/Resources.
58
PNG versions are available as etc/images/icons/emacs*_mac.png.
Thien-Thi Nguyen's avatar
Thien-Thi Nguyen committed
59

60 61 62 63 64 65 66
** Built-in functions (subr) can now have an interactive specification
that is not a prompt string.  If the `intspec' parameter of a `DEFUN'
starts with a `(', the string is evaluated as a Lisp form.

** set-file-modes is now interactive and can take the mode value in
symbolic notation thanks to auxiliary functions.

67 68 69
** split-window-preferred-function specifies whether display-buffer should
split windows vertically or horizontally.

70 71 72 73 74
** Emacsclient has been extended to support opening a new terminal
frame.  Its behavior has been changed to open a new Emacs frame by
default.  Use the -c option to get the old behavior of opening files in
the currently selected Emacs frame.

75 76
** The refcards are now shipped as PDF files.

77 78
** Emacs now supports the SVG image format through librsvg2.

79
** If you set find-file-confirm-nonexistent-file to t, then C-x C-f
Stefan Monnier's avatar
Stefan Monnier committed
80 81
requires confirmation before opening a non-existent file.

Nick Roberts's avatar
Nick Roberts committed
82 83 84 85 86
** If the gpm mouse server is running and t-mouse-mode enabled, Emacs uses a
Unix socket in a GNU/Linux console to talk to server, rather than faking events
using the client program mev.  This C level approach provides mouse
highlighting, and help echoing in the minibuffer.

87 88 89 90
** The new variable next-error-recenter specifies how next-error should
recenter the visited source file.  Its value can be a number (for example,
0 for top line, -1 for bottom line), or nil for no recentering.

Juanma Barranquero's avatar
Juanma Barranquero committed
91
** The mode-line displays a `@' if the default-directory for the current buffer
Nick Roberts's avatar
Nick Roberts committed
92
is on a remote machine, or a hyphen otherwise.
93

94 95 96
** The mode-line displays a mode menu when mouse-1 is clicked on a minor mode,
in the same way as it already did for major modes.

Juanma Barranquero's avatar
Juanma Barranquero committed
97
** The new command balance-windows-area balances windows both vertically
98
and horizontally.
99 100 101

** The new command close-display-connection can be used to close a connection
to a remote display, e.g. because the display is about to become unreachable.
102 103 104

** The command shell prompts for the default directory, when it is
called with a prefix, and the default directory is a remote file name.
Juanma Barranquero's avatar
Juanma Barranquero committed
105
This is because some file name handlers (like ange-ftp) are not able to
106
run processes remotely.
107 108 109

** The new command `display-time-world' starts an updating time display
using several time zones, in a buffer.
110

111
* Startup Changes in Emacs 23.1
112

113 114 115 116
** New user option `initial-buffer-choice' specifies what to display
after starting Emacs: startup screen, *scratch* buffer, visiting a
file or directory.

117 118 119 120
** New alias `argv' for `command-line-args-left'
This is a convenience alias, so that one can write `(pop argv)'
inside of --eval command line arguments in order to access
following arguments.
121 122

** The abbrev file is no longer read at startup in batch mode.
123

124
* Incompatible Editing Changes in Emacs 23.1
Kim F. Storm's avatar
Kim F. Storm committed
125

126 127 128 129 130
+++
** In Dired-x, all command guesses for ! are now added to the default
list accessible by M-n instead of pushing all guesses temporarily into
the history list.

Richard M. Stallman's avatar
Richard M. Stallman committed
131

132
* Editing Changes in Emacs 23.1
Richard M. Stallman's avatar
Richard M. Stallman committed
133

134 135 136 137 138
+++
** C-M-% now shows replacement as it would look in the buffer, with
`\N' and `\&' substituted according to the match.  Old behavior can be
restored by customizing `query-replace-show-replacement'.

139 140 141
+++
** M-q now fills the region if the region is active and
`transient-mark-mode' is turned on.  Otherwise, it fills the current
Juri Linkov's avatar
Juri Linkov committed
142
paragraph.
143

Juri Linkov's avatar
Juri Linkov committed
144
+++
Juri Linkov's avatar
Juri Linkov committed
145 146 147 148
** M-$ now checks spelling of the region if the region is active and
`transient-mark-mode' is turned on.  Otherwise, it checks spelling of the
word at point.

149 150 151
** TAB now indents the region if the region is active and
`transient-mark-mode' is turned on.

152 153 154
** `use-empty-active-region' controls whether an empty active region
in Transient Mark mode should make commands operate on that empty region.

155 156 157
** C-z now invokes `suspend-frame', C-x C-c now invokes
`save-buffers-kill-terminal'.

158 159
** New command kill-matching-buffers kills buffers whose name matches a regexp.

160 161 162 163 164 165 166
** You can disable kill ring commands from accessing the primary selection
by setting `x-select-enable-primary' to nil.

** If `select-active-regions' is t, setting the mark automatically
makes the new region into the primary selection (for interaction with
other window applications).  If you enable this, you might want to bind
`mouse-yank-primary' to Mouse-2.
167

168 169 170 171
** If `yank-pop-change-selection' is t, rotating the kill ring
also updates the selection or clipboard to the current yank,
just as M-w would do so with the text it copies to the kill ring.

172 173
** Minibuffer changes:

174 175 176
*** In C-x d, if you type M-n you get the visited file name of the
current buffer.

177 178 179 180 181 182 183 184
*** In Dired, a list of commands for ! extracted from mailcap according to
file extensions are added to the default list accessible by M-n.

*** A list of regexp default values is available via M-n for `occur',
`keep-lines', `flush-lines' and `how-many'.  This list includes the active
region in transient-mark-mode, the word under the cursor, the last isearch
regexp, the last isearch string and the last replacement regexp.

185 186 187 188 189 190 191 192
*** isearch started in the minibuffer searches in the minibuffer history.
Reverse isearch commands (C-r, C-M-r) search in previous minibuffer
history elements, and forward isearch commands (C-s, C-M-s) search in
next history elements.  When the reverse search reaches the first history
element, it wraps to the last history element, and the forward search
wraps to the first history element.  When the search is terminated, the
history element containing the search string becomes the current.

193 194

* New Modes and Packages in Emacs 23.1
195

196 197
** FIXME add details of new packages imported from lisp/gnus.

198 199 200 201 202 203
** The package doc-view.el has been added.  It supports viewing of PDF,
PostScript and DVI documents inside an Emacs buffer by converting the
document to a set of PNG images first.  One can also search for a
regular expression in the document.  The commentary of the file explains
its usage.

Glenn Morris's avatar
Glenn Morris committed
204 205 206
** The nXML package has been added.
[FIXME someone who uses this, please write a brief description.]

Thien-Thi Nguyen's avatar
Thien-Thi Nguyen committed
207
** A new game called `bubbles' has been added.
Thien-Thi Nguyen's avatar
Thien-Thi Nguyen committed
208

Kim F. Storm's avatar
Kim F. Storm committed
209
** minibuffer-indicate-depth-mode shows the minibuffer depth in the prompt.
210

Michael Olson's avatar
Michael Olson committed
211 212 213 214 215
** Remember Mode (remember.el) is now included with Emacs.  It is a
mode for quickly jotting down things to remember.  Included with
remember.el is a backend that can save notes to a Diary file.  Please
consult the Remember Manual for usage details.

Michael Albinus's avatar
Michael Albinus committed
216 217 218 219
** D-Bus language bindings for Elisp are provided by the package
dbus.el and by extensions to the C modules of Emacs.  D-Bus is an
inter-process communication mechanism for applications residing on the
same host, based on messages.  See the manual for further details.
220 221

* Changes in Specialized Modes and Packages in Emacs 23.1
222

Stefan Monnier's avatar
Stefan Monnier committed
223 224 225 226 227 228 229 230 231
** abbrev was rewritten in Elisp and extended with more flexibility.
*** New functions: abbrev-get, abbrev-put, abbrev-table-get, abbrev-table-put,
    abbrev-table-p.
*** Special hook `abbrev-expand-functions' obsoletes `pre-abbrev-expand-hook'.
*** `make-abbrev-table', `define-abbrev', `define-abbrev-table' all take
    extra arguments for arbitrary properties.
*** New variable `abbrev-minor-mode-table-alist'.
*** `local-abbrev-table' can hold a list of abbrev-tables.
*** Abbrevs have now the following special properties:
232
    `:count', `:system', `:enable-function', `:case-fixed'.
Stefan Monnier's avatar
Stefan Monnier committed
233 234 235 236
*** Abbrev-tables have now the following special properties:
    `:parents', `:case-fixed', `:enable-function', `:regexp',
    `abbrev-table-modiff'.

Martin Rudalics's avatar
Martin Rudalics committed
237 238 239 240 241 242
** Help mode.
*** New macro `with-help-window' should set up help windows better
than `with-output-to-temp-buffer' with `print-help-return-message'.
*** New option `help-window-select' permits to customize whether help
window shall be automatically selected when invoking help.
*** New variable `help-window-point-marker' permits to specify new
243
position of point in help window (for example in `view-lossage').
Martin Rudalics's avatar
Martin Rudalics committed
244 245

** view-remove-frame-by-deleting is now by default t
246
since users found iconification of view-mode frames distracting.
Martin Rudalics's avatar
Martin Rudalics committed
247

Juri Linkov's avatar
Juri Linkov committed
248 249 250 251 252 253
** Isearch mode

*** New command `isearch-occur' bound to `M-s o' in isearch mode
runs `occur' with the current search string.

*** isearch can now search through multiple ChangeLog files.
Juri Linkov's avatar
Juri Linkov committed
254 255 256 257
When running isearch in a ChangeLog file, if the search fails,
then another C-s tries searching the previous ChangeLog,
if there is one (e.g. go from ChangeLog to ChangeLog.12).

258 259
This is enabled if isearch-buffers-multi is non-nil.

Stefan Monnier's avatar
Stefan Monnier committed
260 261 262 263 264 265
** smerge-refine highlights word-level details of changes in conflict.
It's used automatically as you move through conflicts, see smerge-auto-refine.

** diff-refine-hunk highlights word-level details of changes in a diff hunk.
It's used automatically as you move through hunks, see diff-auto-refine.

Stefan Monnier's avatar
Stefan Monnier committed
266
** archive-mode has basic support to browse Rar archives.
Stefan Monnier's avatar
Stefan Monnier committed
267

268 269
** talk.el has been extended for multiple tty support.

270 271 272
** compilation-auto-jump-to-first-error tells `compile' to jump to
the first error encountered during compilations.

273
** In the `copyright' package, you can specify your copyright holders' names.
274 275 276
Only copyright lines with holders matching copyright-names-regexp will be
considered for update.

277 278 279
** eldoc highlights the function argument under point
with the face `eldoc-highlight-function-argument'.

280
+++
Juanma Barranquero's avatar
Juanma Barranquero committed
281
** defcustom accepts new keyword arguments, `:safe' and `:risky', which
282 283
set a variable's `safe-local-variable' and `risky-local-variable' property.

284 285 286 287 288 289
** Etags changes.
*** The --members option is now the default.

Use --no-members if you want the old default behaviour of not tagging
struct members in C, members variables in C++ and variables in PHP.

290
** VC
Dan Nicolaescu's avatar
Dan Nicolaescu committed
291 292
*** Clicking on the VC mode-line entry now pops the VC menu.

Dan Nicolaescu's avatar
Dan Nicolaescu committed
293
*** The VC mode-line entry now has a tooltip that explains the VC file status.
294

Dan Nicolaescu's avatar
Dan Nicolaescu committed
295 296
*** VC now supports applying VC operations to a set of files at a time.

Eric S. Raymond's avatar
Eric S. Raymond committed
297 298 299 300 301
This enables VC to work much more effectively with changeset-oriented
version-control systems such as Subversion, GNU Arch, Mercurial, and
Bzr. VC will now pass a multiple-file commit to these systems
as a single changeset.

302 303
*** In VC Annotate mode, you can type V to toggle the annotation visibility.

304 305 306
** log-edit now has a command bound to C-c C-d to show the diff for
the files involved.

307 308
** sgml-electric-tag-pair-mode lets you simultaneously edit matched tag pairs.

Glenn Morris's avatar
Glenn Morris committed
309 310 311 312 313
** The appearance of superscript and subscript in TeX is more customizable.
See the documentation of the variables: tex-fontify-script,
tex-font-script-display, tex-suscript-height-ratio, and
tex-suscript-height-minimum.

Roland Winkler's avatar
Roland Winkler committed
314 315
** BibTeX mode:

Roland Winkler's avatar
Roland Winkler committed
316 317
*** New command `bibtex-initialize' (re)initializes BibTeX buffers. 

Roland Winkler's avatar
Roland Winkler committed
318 319 320 321
*** New `bibtex-entry-format' options `whitespace', `braces', and
`string', disabled by default.

*** New variable `bibtex-cite-matcher-alist' contains rules to
Juanma Barranquero's avatar
Juanma Barranquero committed
322
identify cited keys in BibTeX entries, used by `bibtex-find-crossref'.
Roland Winkler's avatar
Roland Winkler committed
323

Roland Winkler's avatar
Roland Winkler committed
324
*** Command `bibtex-url' allows multiple URLs per entry.
Roland Winkler's avatar
Roland Winkler committed
325

326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354
+++
** Tramp

*** New connection methods.
The new methods "plinkx", "plink2", "psftp", "sftp" and "fish" have
been introduced.  There are also new so-called gateway methods
"tunnel" and "socks".

*** Multihop syntax has been removed.
The pseudo-method "multi" has been removed.  Instead of, multi hops
can be specified by the new variable `tramp-default-proxies-alist'.

*** More default settings.
Default values can be set via the variables `tramp-default-user',
`tramp-default-user-alist' and `tramp-default-host'.

*** Connection information is cached.
In order to reduce connection setup, information about used
connections are kept persistent in a file.  The name of this file is
defined in the variable `tramp-persistency-file-name'.

*** Control of remote processes.
Running processes on a remote host can be controlled by settings in
`tramp-remote-path' and `tramp-remote-process-environment'.

*** Success of remote copy is checked.
When the variable `file-precious-flag' is set, the success of a remote
file copy is checked via the file's checksum.

355 356
** Miscellaneous programming mode changes

Glenn Morris's avatar
Glenn Morris committed
357 358
*** The file etc/emacs.py now supports both Python 2 and 3, meaning
that either version can be used as inferior Python by python.el.
Glenn Morris's avatar
Glenn Morris committed
359

360 361
*** The variable `fortran-line-length' can change the fixed-form line-length.

362 363 364
*** In Fortran mode, M-; is now bound to the standard comment-dwim,
rather than fortran-indent-comment.

365 366
+++
*** (The increasingly misnamed) F90 mode supports Fortran 2003 syntax.
367

Reiner Steib's avatar
Reiner Steib committed
368 369 370 371 372 373 374 375
** Gnus package

*** The Gnus package has been updated

*** There are many news features, bug fixes and improvements.

See the file GNUS-NEWS or the node "No Gnus" in the Gnus manual for details.

376 377 378
** Miscellaneous

*** comint-mode uses `start-file-process' now (see Lisp Changes).
379 380 381
If `default-directory' is a remote file name, subprocesses are started
on the corresponding remote system.

382
*** C-x C-q in dired-mode now runs the command wdired-change-to-wdired-mode,
383 384
and C-x C-q in wdired-mode exits it with asking a question about
saving changes.
385

386 387
*** The new command `eshell/info' runs info in an eshell buffer.

388 389

* Changes in Emacs 23.1 on non-free operating systems
Juri Linkov's avatar
Juri Linkov committed
390

Jason Rumney's avatar
Jason Rumney committed
391 392 393 394 395 396 397
---
** IPv6 is supported on MS-Windows.
Emacs now supports IPv6 on Windows XP and later, and earlier versions
of Windows with third party IPv6 stacks installed. Previously IPv6 was
supported on other platforms, but not on Windows due to using the winsock
1.1 header file, even though Emacs was linking to the winsock 2 library.

Jason Rumney's avatar
Jason Rumney committed
398 399 400 401 402 403 404 405 406 407 408 409
** More keys available on MS-Windows.
Keys normally associated with IMEs, and some exotic keys not normally found
on standard keyboards have been given names so they can be bound to functions
inside Emacs.  If there are keys on your keyboard that have not been exposed
to Emacs in the past, try C-h k to see if they are available now.

Emacs can now bind functions to the extra buttons for media player and
browser control present on some keyboards.  These buttons are disabled
by default, since enabling them prevents their system-wide use when
Emacs has focus.  To enable them, set the variable
w32-pass-multimedia-buttons to nil. See the doc string of that variable
for the list of extra keys that are available.
410 411

* Incompatible Lisp Changes in Emacs 23.1
412

413 414 415
+++
** The function `dired-call-process' has been removed.

416 417 418 419 420 421 422 423
** The variable `byte-compile-warnings' can now be a list starting with `not',
meaning to disable the specified warnings. The meaning of this list
may therefore be the reverse of what you expect (of course, this is
only an issue if you make use of the new `not' syntax). Rather than
checking/manipulating elements directly, use the new functions
`byte-compile-warning-enabled-p', `byte-compile-disable-warning', and
`byte-compile-enable-warning.'

424 425
** shell.el no longer defines the aliases `dirtrack-toggle' and
`dirtrack-mode' for `shell-dirtrack-mode'.  These names were removed
Glenn Morris's avatar
Glenn Morris committed
426
because they clash with commands provided by dirtrack.el.  Use
427 428
`shell-dirtrack-mode' instead.

429 430

* Lisp Changes in Emacs 23.1
Juri Linkov's avatar
Juri Linkov committed
431

432 433 434
** `beginning-of-defun-function' now takes one argument, the count
   given to `beginning-of-defun'.

435 436 437
** The variable `inhibit-changing-match-data', if non-nil, prevents the
search and match primitives from changing the match data.

438 439 440 441
+++
** New function `match-substitute-replacement' returns the result of
`replace-match' without actually using it in the buffer.

442 443 444 445 446 447 448
+++
** A list of default values can be specified for the DEFAULT argument of
functions `read-from-minibuffer', `read-string', `read-command',
`read-variable', `read-buffer', `completing-read'.  Elements of this list
are available for inserting into the minibuffer by typing `M-n'.
For empty input these functions return the first element of this list.

449 450 451
** `custom-note-var-changed' tells Custom to treat the change in a certain
variable as having been made within Custom.

452 453
** `frame-inherited-parameters' lets new frames inherit parameters from
the selected frame.
454

455
** Commands should use `use-region-p' to test whether there is
456 457
an active region that they should operate on.

458 459 460 461 462
** `region-active-p' returns non-nil when Transient Mark mode
is enabled and there is an active region.  This is NOT the best function
to use to test whether a command should operate on the region instead
of the usual behavior -- for that, use `use-region-p'.

463 464 465 466 467
** New keymap `input-decode-map' overrides like key-translation-map, but
applies before function-key-map.  Also it is terminal-local contrary to
key-translation-map.  Terminal-specific key-sequences are generally added to
this map rather than to function-key-map now.

468 469 470 471 472
** The new macro `declare-function' suppresses compiler warnings about
undefined functions.  The new `check-declare' package verifies that such
statements are accurate (i.e. the functions are actually defined in
the specified files).

473 474
** The new function `read-color' reads a color name using the minibuffer.

475 476 477
** The new function `face-all-attributes' returns an alist
describing all the basic attributes of a given face.

478 479 480 481
** `interprogram-paste-function' can now return one string or a list
of strings.  In the latter case, Emacs puts the second and following
strings on the kill ring.

482 483
** Changes related to multiple tty support.

Stefan Monnier's avatar
Stefan Monnier committed
484 485 486
*** $TERM is now set to `dumb' for subprocesses.  If you want to know the
$TERM inherited by Emacs you will have to look inside initial-environment.

487 488
*** $DISPLAY is now dynamically inherited from the frame's `display'.

489 490 491 492 493 494 495 496 497 498 499 500 501
*** The `window-system' variable has been made frame-local. The new
`initial-window-system' variable contains the `window-system' value
for the first frame.

*** You can specify a terminal device (`tty' parameter) and a terminal
type (`tty-type' parameter) to `make-terminal-frame'.

*** The new function `make-frame-on-tty' allows you to create a new
frame on another tty device interactively.

*** The function `make-frame-on-display' now works during a tty
session, and `make-frame-on-tty' works during a graphical session.

502
*** New functions: `delete-tty', `suspend-tty', `resume-tty'.
503

Stefan Monnier's avatar
Stefan Monnier committed
504 505
*** A new data type for terminals with functions: `get-device-terminal',
`terminal-parameters', `terminal-parameter', `set-terminal-parameter'.
506

507
*** New hooks: `suspend-tty-functions' and `resume-tty-functions'
508
are called after a tty frame has been suspended or resumed,
Juanma Barranquero's avatar
Juanma Barranquero committed
509
respectively.  The functions are called with the terminal id of the frame
510 511
being suspended/resumed as a parameter.

Stefan Monnier's avatar
Stefan Monnier committed
512
*** New function: `environment'.
513

514
*** New variable: `local-function-key-map'.
Stefan Monnier's avatar
Stefan Monnier committed
515 516 517 518
This in addition to the global function-key-map variable that
already existed.  The global variable is not used directly any more;
instead, the local-function-key-map is initialized so as to inherit from
function-key-map.
519

Stefan Monnier's avatar
Stefan Monnier committed
520 521
*** `initial-environment' holds the environment inherited from Emacs's parent.

522 523 524
*** The `keyboard-translate-table' variable and the terminal and
keyboard coding systems have been made terminal-local.

525 526
*** In addition to the global function-key-map, Emacs has terminal-local
local-function-key-map variables, and uses them instead of the
527 528 529 530
global keymaps to set up translations and function key sequences
relevant to a specific terminal device.


531 532 533 534
** You can now also pass the value of the `invisible' property to invisible-p
to check whether it would cause the text to be invisible.  Convenient when
checking invisibility of text which has no buffer position
(e.g. in before/after-strings).
535

536 537
** Non-breaking space now acts as whitespace.

538
+++
539 540 541 542 543 544 545 546 547
** In `condition-case', a handler can specify "let the debugger run first".

You do this by writing `debug' in the list of conditions to be handled,
like this:

    (condition-case nil
	(foo bar)
      ((debug error) nil))

Stefan Monnier's avatar
Stefan Monnier committed
548 549 550
** The `require-match' argument to `completing-read' accepts a new value
`confirm-only'.

551 552 553
+++
** The regexp form \(?<num>:<regexp>\) specifies the group number explicitly.

554 555 556 557 558 559 560 561 562 563
** New function `window-full-width-p' returns t if a window is as wide
as its frame.

** The new function `split-string-and-unquote' does (what?)

** The new function `combine-and-quote-strings' does (what?)

** The new function `image-refresh' refreshes all images associated
with a given image specification.

Chong Yidong's avatar
Chong Yidong committed
564 565 566 567
+++
** New variable `user-emacs-directory'.
Use this instead of "~/.emacs.d".

568
+++
Juanma Barranquero's avatar
Juanma Barranquero committed
569
** The new function `start-file-process' is similar to `start-process',
570
but obeys file handlers.  The file handler is chosen based on
571 572
`default-directory'.  The functions `start-file-process-shell-command'
and `process-file-shell-command' are also new; they call internally
Juanma Barranquero's avatar
Juanma Barranquero committed
573
`start-file-process' and `process-file', respectively.
574

575 576 577
** The new function `process-lines' executes an external program and
returns its output as a list of lines.

578
+++
579 580 581 582
** `file-remote-p' has new optional parameters IDENTIFICATION and CONNECTED.
IDENTIFICATION specifies which part of the remote identifier has to be
returned.  With CONNECTED passed non-nil, it is checked whether a
remote connection has been established already.
583

584 585 586
** The two new functions `looking-at-p' and `string-match-p' can do
the same matching as `looking-at' and `string-match' without changing
the match data.
587 588 589 590

** The interactive-form of a function can be added post-facto via the
`interactive-form' symbol property.  Mostly useful to add complex interactive
forms to subroutines.
591

592
* New Packages for Lisp Programming in Emacs 23.1
593

594 595 596 597 598 599
** The package isearch-multi.el has been added.  It implements a new mode
`isearch-buffers-minor-mode' that allows isearch to search through
multiple buffers.  In this mode a new variable
`isearch-buffers-next-buffer-function' defines the function to call
to get the next buffer to search in the series of multiple buffers.

Thien-Thi Nguyen's avatar
Thien-Thi Nguyen committed
600 601
** The new package avl-tree.el deals with the AVL tree data structure.

602

Dave Love's avatar
#  
Dave Love committed
603
----------------------------------------------------------------------
604
This file is part of GNU Emacs.
Dave Love's avatar
#  
Dave Love committed
605

606 607
GNU Emacs is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
608
the Free Software Foundation; either version 3, or (at your option)
609 610 611 612 613 614
any later version.

GNU Emacs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.
Dave Love's avatar
#  
Dave Love committed
615

616 617 618 619
You should have received a copy of the GNU General Public License
along with GNU Emacs; see the file COPYING.  If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
Dave Love's avatar
#  
Dave Love committed
620

621

Dave Love's avatar
#  
Dave Love committed
622 623 624 625
Local variables:
mode: outline
paragraph-separate: "[ 	]*$"
end:
Miles Bader's avatar
Miles Bader committed
626

Miles Bader's avatar
Miles Bader committed
627
arch-tag: e759449d-88b3-4de4-9900-3a6c3dfa23e2