NEWS 152 KB
Newer Older
1
GNU Emacs NEWS -- history of user-visible changes.
2

3
Copyright (C) 2010-2014 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 bug-gnu-emacs@gnu.org.
7 8
If possible, use M-x report-emacs-bug.

9
This file is about changes in Emacs version 24.
10

11 12
See files NEWS.23, 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

Glenn Morris's avatar
Glenn Morris committed
17
Temporary note:
Glenn Morris's avatar
Glenn Morris committed
18 19
+++ indicates that all necessary documentation updates are complete.
    (This means all relevant manuals in doc/ AND lisp doc-strings.)
20
--- means no change in the manuals is needed.
Glenn Morris's avatar
Glenn Morris committed
21
When you add a new item, use the appropriate mark if you are sure it applies,
22
otherwise leave it unmarked.
Glenn Morris's avatar
Glenn Morris committed
23

24 25 26

* Installation Changes in Emacs 24.5

Glenn Morris's avatar
Glenn Morris committed
27 28 29
+++
** Building Emacs now requires GNU make.

Paul Eggert's avatar
Paul Eggert committed
30 31 32 33 34 35 36
** By default, Emacs no longer works on IRIX.  We expect that Emacs
users are not affected by this, as SGI stopped supporting IRIX in
December 2013.  If you are affected, please send a bug report.  You
should be able to work around the problem either by porting the Emacs
undumping code to GCC under IRIX, or by configuring --with-wide-int,
or by sticking with Emacs 24.4.

37 38 39 40 41 42

* Startup Changes in Emacs 24.5


* Changes in Emacs 24.5

43 44 45
---
** The default value of `history-length' has increased to 100.

46 47 48 49 50
+++
** The new variable `term-file-aliases' replaces some files from lisp/term.
The function `tty-run-terminal-initialization' consults this variable
when deciding what terminal-specific initialization code to run.

51 52 53 54 55
---
** New variable `system-configuration-features', listing some of the
main features that Emacs was compiled with.  This is mainly intended
for use in Emacs bug reports.

56 57 58

* Editing Changes in Emacs 24.5

59 60 61 62 63 64 65
Emacs now supports "bracketed paste mode" when running on a terminal
that supports it.  This facility allows Emacs to understand pasted
chunks of text as strings to be inserted instead of interpreting each
character in the pasted text as actual user input, resulting in a
paste experience similar to that under a window system and significant
performance improvements when pasting large amounts of text.

66 67 68

* Changes in Specialized Modes and Packages in Emacs 24.5

69 70 71
---
** The Rmail commands d, C-d and u now handle repeat counts
to delete or undelete multiple messages.
72

73 74 75 76
** The URL package accepts now the protocols "ssh", "scp" and "rsync".
When `url-handler-mode' is enabled, file operations for these
protocols as well as for "telnet" and "ftp" are passed to Tramp.

Glenn Morris's avatar
Glenn Morris committed
77 78 79 80 81
** Obsolete packages

---
*** gulp.el

82 83 84 85 86 87

* New Modes and Packages in Emacs 24.5


* Incompatible Lisp Changes in Emacs 24.5

88 89 90
** inhibit-modification-hooks now also inhibits lock-file checks as well as
active region handling.

91 92
** deactivate-mark is now buffer-local.

93 94
** cl-the now asserts that its argument is of the given type.

95 96 97

* Lisp Changes in Emacs 24.5

98 99
** New function `function-put' to use instead of `put' for function properties.

100
+++
101 102 103 104 105
** New properties that can be specified with `declare':
*** (interactive-only INSTEAD), tells to use INSTEAD for non-interactive use.
*** (pure VAL), if VAL is non-nil, indicates the function is pure.
*** (side-effect-free VAL), if VAL is non-nil, indicates the function does not
have side effects.
106

107
** You can access the slots of structures using `cl-struct-slot-value'.
Daniel Colascione's avatar
Daniel Colascione committed
108

109 110 111

* Changes in Emacs 24.5 on Non-Free Operating Systems

112 113

* Installation Changes in Emacs 24.4
114

Glenn Morris's avatar
Glenn Morris committed
115
---
Chong Yidong's avatar
Chong Yidong committed
116
** Emacs can now be compiled with ACL support.
117 118
This happens by default if a suitable support library is found at
build time, like libacl on GNU/Linux.  To prevent this, use the
Glenn Morris's avatar
Glenn Morris committed
119
configure option `--disable-acl'.  See below for related features.
120

Glenn Morris's avatar
Glenn Morris committed
121
---
Chong Yidong's avatar
Chong Yidong committed
122
** Emacs can now be compiled with file notification support.
123 124
This happens by default if a suitable system library is found at
build time.  To prevent this, use the configure option
125
`--without-file-notification'.  See below for file-notify features.
Glenn Morris's avatar
Glenn Morris committed
126 127 128 129 130 131 132
This feature is not available for the Nextstep port.

---
** Emacs can now be compiled with zlib support.
This happens by default if zlib is present, which it normally is.
To prevent this, use the configure option `--without-zlib'.
This provides the function `zlib-decompress-region'; see below for details.
133

Glenn Morris's avatar
Glenn Morris committed
134
---
Chong Yidong's avatar
Chong Yidong committed
135 136
** The configure option `--without-compress-info' has been generalized,
and renamed to `--without-compress-install'.  It now prevents compression
137 138
of _any_ files during installation.

Glenn Morris's avatar
Glenn Morris committed
139
---
Chong Yidong's avatar
Chong Yidong committed
140
** The configure option `--with-crt-dir' has been removed.
141
It is no longer needed, as the crt*.o files are no longer linked specially.
142

Glenn Morris's avatar
Glenn Morris committed
143
---
144 145 146
** Directories passed to configure option `--enable-locallisppath' are
no longer created during installation.

147
---
Glenn Morris's avatar
Glenn Morris committed
148
** Emacs for NS (Mac OS X, GNUstep) can be built with ImageMagick support.
Glenn Morris's avatar
Glenn Morris committed
149
This requires pkg-config to be available at build time.
150

Glenn Morris's avatar
Glenn Morris committed
151

152
* Startup Changes in Emacs 24.4
Glenn Morris's avatar
Glenn Morris committed
153

154 155 156 157 158 159 160 161 162 163
+++
** When initializing `load-path', an empty element in the EMACSLOADPATH
environment variable (either leading, e.g., ":/foo"; trailing, e.g.,
"/foo:"; or embedded, e.g., "/foo::/bar") is replaced with the default
load-path (the one that would have been used if EMACSLOADPATH was unset).
This makes it easier to _extend_ the load-path via EMACSLOADPATH
(previously, EMACSLOADPATH had to specify the complete load-path,
including the defaults).  (In older versions of Emacs, an empty element
was replaced by ".", so use an explicit "." now if that is what you want.)

164 165
+++
** The -L option, which normally prepends its argument to load-path,
166 167
will instead append, if the argument begins with `:' (or `;' on MS Windows;
i.e., `path-separator').
168

169 170 171 172 173 174
+++
** If you use either site-load.el or site-init.el to customize the dumped
Emacs executable, any changes to `load-path' that these files make
will no longer be present after dumping.  To affect a permanent change
to `load-path', use the `--enable-locallisppath' option of `configure'.

Chong Yidong's avatar
Chong Yidong committed
175 176 177 178
+++
** The user option `initial-buffer-choice' can now specify a function
to set up the initial buffer.

Glenn Morris's avatar
Glenn Morris committed
179

180
* Changes in Emacs 24.4
181

Glenn Morris's avatar
Glenn Morris committed
182
+++
Glenn Morris's avatar
Glenn Morris committed
183 184 185
** New function `zlib-decompress-region', which decompresses gzip- and
zlib-format compressed data using built-in zlib support, if available.

186 187 188 189 190 191
+++
** New option `gnutls-verify-error', if non-nil, means that Emacs
should reject SSL/TLS certificates that GnuTLS determines as invalid.
(This option defaults to nil at present, but this is expected to change
in a future release.)

Eli Zaretskii's avatar
Eli Zaretskii committed
192 193 194 195 196 197 198 199 200 201 202 203 204
+++
** Emacs now supports menus on text-mode terminals.
If the terminal supports a mouse, clicking on the menu bar, or on
sensitive portions of the mode line or header line, will drop down the
menu defined at that position.  Likewise, clicking C-mouse-2 or
C-mouse-2 or C-mouse-3 on the text area will pop up the menus defined
for those locations.

If the text terminal does not support a mouse, you can activate the
first menu-bar menu by typing F10, which invokes `menu-bar-open'.

If you want the previous behavior, whereby F10 invoked `tmm-menubar',
customize the option `tty-menu-open-use-tmm' to a non-nil value.
Glenn Morris's avatar
Glenn Morris committed
205 206
(Typing M-` always invokes `tmm-menubar', even if `tty-menu-open-use-tmm'
is nil.)
Eli Zaretskii's avatar
Eli Zaretskii committed
207

208
+++
Chong Yidong's avatar
Chong Yidong committed
209 210 211 212
** The *Messages* buffer is created in `messages-buffer-mode',
a new major mode, with read-only status.  Any code that might create
the *Messages* buffer should call the function `messages-buffer' to do
so and set up the mode.
213

Glenn Morris's avatar
Glenn Morris committed
214
+++
Glenn Morris's avatar
Glenn Morris committed
215 216
** Emacs can now support ACLs (access control lists).
This requires a suitable support library to be found at build time.
Glenn Morris's avatar
Glenn Morris committed
217 218
On GNU/Linux, the POSIX ACL interface is used via libacl.
On MS-Windows, the NT Security APIs are used to emulate the POSIX interface.
Glenn Morris's avatar
Glenn Morris committed
219

220 221 222 223
+++
*** Emacs preserves the ACL entries of files when backing up.
+++
*** New functions `file-acl' and `set-file-acl' get and set the ACL
Glenn Morris's avatar
Glenn Morris committed
224
entries of a file.
225

226 227
** Multi-monitor support has been added.

Xue Fuqiao's avatar
Xue Fuqiao committed
228
+++
229 230 231 232
*** New functions `display-monitor-attributes-list' and
`frame-monitor-attributes' can be used to obtain information about
each physical monitor on multi-monitor setups.

233
+++
234 235 236
*** The functions `display-pixel-width' and `display-pixel-height' now
behave consistently among the platforms: they return the pixel width
or height for all physical monitors associated with the given display
237
as if they were on X.  To get information for each physical
238 239 240 241
monitor, use the new functions above.  Similar notes also apply to
`x-display-pixel-width', `x-display-pixel-height', `display-mm-width',
`display-mm-height', `x-display-mm-width', and `x-display-mm-height'.

Chong Yidong's avatar
Chong Yidong committed
242 243 244
+++
** The cursor stops blinking after 10 blinks (by default) on X and NS.
You can change the default by customizing `blink-cursor-blinks'.
245

Chong Yidong's avatar
Chong Yidong committed
246 247 248 249
+++
** In keymaps where SPC scrolls forward, S-SPC now scrolls backward.
This affects View mode, etc.

250
+++
Glenn Morris's avatar
Glenn Morris committed
251
** The default value of `make-backup-file-name-function' is no longer nil.
Glenn Morris's avatar
Glenn Morris committed
252 253
Instead it defaults to a function that does what the nil value used to.

Chong Yidong's avatar
Chong Yidong committed
254
** Help changes
Glenn Morris's avatar
Glenn Morris committed
255

Tassilo Horn's avatar
Tassilo Horn committed
256
+++
Chong Yidong's avatar
Chong Yidong committed
257 258 259 260 261
*** The command `apropos-variable' is renamed to `apropos-user-option'.
`apropos-user-option' shows all user options while `apropos-variable'
shows all variables.  When called with a universal prefix argument,
the two commands swap their behaviors.  When `apropos-do-all' is
non-nil, they output the same results.
262

Chong Yidong's avatar
Chong Yidong committed
263 264
+++
*** The key `?' now describes prefix bindings, like `C-h'.
265

266
---
Glenn Morris's avatar
Glenn Morris committed
267
*** The command `describe-function' has been extended for EIEIO.
268
Running it on constructors will show a full description of the
David Engster's avatar
David Engster committed
269
generated class.  For generic functions, it will show all
270 271 272 273
implementations together with links to the source.  The old commands
`describe-class', `describe-constructor' and `describe-generic' were
removed.

274 275
---
*** The function `quail-help' is no longer an interactive command.
Glenn Morris's avatar
Glenn Morris committed
276
Use `C-h C-\' (`describe-input-method') instead.
277

278 279
** ImageMagick

280
+++
Glenn Morris's avatar
Glenn Morris committed
281
*** ImageMagick images now support the :max-width and :max-height keywords.
282

283 284 285 286 287
+++
*** When using `create-image' with image data, you can pass a :format
attribute (via the property-list argument) in order to help
ImageMagick detect the image type.  The value should be a MIME
content-type that is found in the new variable `image-format-suffixes'.
288

Chong Yidong's avatar
Chong Yidong committed
289
** Frame and window changes
290

291 292
+++
*** The function `window-in-direction' introduced in Emacs 24.1 now
Paul Eggert's avatar
Paul Eggert committed
293
takes additional arguments for specifying a reference point, wrapping
294 295 296
selection around frame borders, and specifying ways to select the
minibuffer window.

Chong Yidong's avatar
Chong Yidong committed
297 298 299
+++
*** New commands `toggle-frame-fullscreen' and `toggle-frame-maximized',
bound to <f11> and M-<f10>, respectively.
300

301
+++
Chong Yidong's avatar
Chong Yidong committed
302 303 304
*** New hooks `focus-in-hook', `focus-out-hook'.
These are normal hooks run when an Emacs frame gains or loses input focus.

305
+++
Glenn Morris's avatar
Glenn Morris committed
306 307 308 309 310 311 312 313
*** Emacs can now change frame sizes in units of pixels, rather than
text rows or columns.  When maximizing a frame or making it fullscreen,
remaining extra pixels are no longer given to the minibuffer, the rightmost
fringe, or other unusable space, but are distributed among the text
areas of the frame's windows.  If the new option `frame-resize-pixelwise'
is non-nil, all frame size changes happen pixelwise and set the
corresponding size hints for the window manager.

314
+++
Glenn Morris's avatar
Glenn Morris committed
315 316 317 318 319 320 321
*** Emacs can now change window sizes in units of pixels.
Mouse-dragging a mode line or window divider now changes the size of
adjacent windows pixelwise.  If the new option `window-resize-pixelwise'
is non-nil, functions like `balance-windows-area' and `fit-window-to-buffer'
resize windows pixelwise.  Most functions for changing or accessing
window sizes now have an additional argument that allows changes to apply,
or values to be returned, in pixels instead of lines/columns.
322

323 324 325 326 327
+++
*** The functions `window-body-height' and `window-body-width' now never
count partially visible lines or columns if called with a nil PIXELWISE
argument.

328
+++
329 330 331 332 333 334 335 336 337 338
*** Emacs can now draw dividers between adjacent windows.  To put
dividers between side-by-side/vertically stacked windows customize the
frame parameters `right-divider-width' and `bottom-divider-width' to
some positive integer.  You can drag dividers with the mouse (they show
a corresponding cursor when the mouse hovers over them).  You can change
the appearance of dividers by customizing the faces `window-divider',
`window-divider-first-pixel', and `window-divider-last-pixel'.  The last
two are useful to provide a 3D effect, or to better distinguish dividers
from surrounding display objects.

339
+++
340 341 342 343 344
*** New functions are provided to return the pixel sizes of window
components, namely `window-scroll-bar-width', `window-mode-line-height'
`window-header-line-height', `window-right-divider-width' and
`window-bottom-divider-width'.

345
+++
346 347 348 349 350
*** The new function `window-text-pixel-size' returns the size of the
text of a window's buffer in pixels.  This allows functions like
`fit-frame-to-buffer' and `fit-window-to-buffer' to accurately fit a
window to its buffer as it will be displayed.

351
+++
352
*** `fit-window-to-buffer' can now resize windows in both dimensions.
353
This behavior is controlled by the new option
354 355
`fit-window-to-buffer-horizontally'.  The new option
`fit-frame-to-buffer' allows to fit the window's frame to its buffer.
356

357
+++
358 359
*** `fit-frame-to-buffer' now fits frames in both dimensions.  The new
options `fit-frame-to-buffer-margins' and `fit-frame-to-buffer-sizes'
360 361
control the size of the frame and its position on screen.

362
---
363 364 365 366 367 368 369
*** Temp Buffer Resize Mode can now adjust height and width of windows
and frames.  `temp-buffer-resize-mode' is now able to adjust the height
and the width of a window displaying a temporary buffer.  The new option
`temp-buffer-max-width' allows to control the width of temporary buffer
windows.  Moreover, if the new option `fit-frame-to-buffer' is non-nil
and the buffer appears in the root window of a frame, Temp Buffer Resize
Mode will try to adjust width and/or height of the frame.
370

Chong Yidong's avatar
Chong Yidong committed
371 372 373 374 375
---
*** `split-window' is now a non-interactive function, not a command.
As a command, it was a special case of `C-x 2' (`split-window-below'),
and as such superfluous.  After being reimplemented in Lisp, its
interactive form was mistakenly retained.
376

377
+++
378 379 380
*** The functions `window-size' and `window-total-size' now have an
optional argument to return a rounded size value.

381
+++
382 383 384
*** `window-state-put' now allows to put a window state into internal
windows too.

385
+++
Chong Yidong's avatar
Chong Yidong committed
386 387 388 389 390
*** New option `scroll-bar-adjust-thumb-portion'.
Available only on X, this option allows to control over-scrolling
using the scroll bar (i.e. dragging the thumb down even when the end
of the buffer is visible).

391
+++
392 393 394 395
*** New basic action function `display-buffer-in-previous-window' has
`display-buffer' display a buffer in a window previously showing that
buffer.

396
+++
397 398 399 400
*** New basic action function `display-buffer-at-bottom' has
`display-buffer' choose or make a window at the bottom of the selected
frame.

401
+++
Xue Fuqiao's avatar
Xue Fuqiao committed
402 403 404
*** New display action function `display-buffer-no-window' to not
display the buffer in a window.

405
+++
Xue Fuqiao's avatar
Xue Fuqiao committed
406 407 408 409
*** New display action alist entry `allow-no-window' to indicate the
caller of `display-buffer' is ready to handle the case of not
displaying the buffer in a window.

Chong Yidong's avatar
Chong Yidong committed
410
** Lisp evaluation changes
411
+++
Chong Yidong's avatar
Chong Yidong committed
412 413 414
*** `eval-defun' on an already defined defcustom calls the :set function,
if there is one.

415
+++
Glenn Morris's avatar
Glenn Morris committed
416
*** The commands `eval-expression' (`M-:'), `eval-last-sexp' (`C-x C-e'),
417 418 419
and `eval-print-last-sexp' (`C-j' in Lisp Interaction mode) can take a
zero prefix argument.  This disables truncation of lists in the output,
equivalent to setting `(eval-expression-)print-length' and
Xue Fuqiao's avatar
Xue Fuqiao committed
420
`(eval-expression-)print-level' to nil.  Additionally, it causes integers
421
to be printed in other formats (octal, hexadecimal, and character).
Chong Yidong's avatar
Chong Yidong committed
422

Glenn Morris's avatar
Glenn Morris committed
423
---
424 425 426
*** New hook `eval-expression-minibuffer-setup-hook' run by
`eval-expression' on entering the minibuffer.

Chong Yidong's avatar
Chong Yidong committed
427 428
---
** `write-region-inhibit-fsync' now defaults to t in batch mode.
429

430
+++
431
** `cache-long-line-scans' is now non-nil, and renamed to `cache-long-scans',
Chong Yidong's avatar
Chong Yidong committed
432
because it affects caching of paragraph scanning results as well.
433
There is no reason to set this to nil except for debugging purposes.
434

Chong Yidong's avatar
Chong Yidong committed
435 436 437 438 439
---
** The option `set-mark-default-inactive' has been deleted.
This unfinished feature was introduced by accident in Emacs 23.1;
simply disabling Transient Mark mode does the same thing.

440
---
Glenn Morris's avatar
Glenn Morris committed
441
** The default value of `comment-use-global-state' is now t,
Chong Yidong's avatar
Chong Yidong committed
442 443
and this variable has been marked obsolete.

Glenn Morris's avatar
Glenn Morris committed
444
---
Glenn Morris's avatar
Glenn Morris committed
445 446
** `emacs-bzr-version' has been renamed to `emacs-repository-version',
and works for git too, if you fetch the repository notes.
Glenn Morris's avatar
Glenn Morris committed
447

448
+++
449 450
** New option `load-prefer-newer' affects how the `load' function chooses
the file to load.  If this is non-nil, then when both .el and .elc
Chong Yidong's avatar
Chong Yidong committed
451 452 453 454
versions of a file exist, and the caller did not explicitly specify
which one to load, then the newer file is loaded.  The default, nil,
means to always load the .elc file.

Chong Yidong's avatar
Chong Yidong committed
455 456 457 458 459

* Editing Changes in Emacs 24.4

** Indentation changes

460
+++
461
*** `electric-indent-mode' is now enabled by default.
462 463 464
Typing RET reindents the current line and indents the new line.
`C-j' inserts a newline but does not indent.  In some programming modes,
additional characters are electric (eg `{').
465

466
+++
Glenn Morris's avatar
Glenn Morris committed
467 468
*** New buffer-local `electric-indent-local-mode'.

Chong Yidong's avatar
Chong Yidong committed
469 470 471 472 473 474
+++
*** The behavior of `C-x TAB' (`indent-rigidly') has changed.
When invoked without a prefix argument, it now activates a transient
mode in which typing <left>, <right>, <S-left>, and <S-right> adjusts
the text indentation in the region.  Typing any other key resumes
normal editing behavior.
475

476
+++
Chong Yidong's avatar
Chong Yidong committed
477
*** `tab-stop-list' is now implicitly extended to infinity by repeating
Glenn Morris's avatar
Glenn Morris committed
478
the last step.  Its default value is changed to nil, which means a tab
Xue Fuqiao's avatar
Xue Fuqiao committed
479
stop every `tab-width' columns.
480

Glenn Morris's avatar
Glenn Morris committed
481 482 483 484
+++
** New command `cycle-spacing' acts like a smarter `just-one-space'.
When called in succession, it cycles between spacing conventions:
one space, no spaces, original spacing.
Chong Yidong's avatar
Chong Yidong committed
485

486
+++
Glenn Morris's avatar
Glenn Morris committed
487 488
** The new function `fill-single-char-nobreak-p' can stop fill from breaking
a line after a one-letter word, which is an error in some typographical
489
conventions.  To use it, add it to the `fill-nobreak-predicate' hook.
490

491
+++
Glenn Morris's avatar
Glenn Morris committed
492
** Uniquify is enabled by default, with `post-forward-angle-brackets' style.
Chong Yidong's avatar
Chong Yidong committed
493

Xue Fuqiao's avatar
Xue Fuqiao committed
494
+++
Chong Yidong's avatar
Chong Yidong committed
495 496
** New command `C-x SPC' (`rectangle-mark-mode') makes a rectangular region.
Most commands are still unaware of it, but kill/yank do work on the rectangle.
497

498 499 500 501 502 503 504
+++
** New option `visual-order-cursor-movement'.
If this is non-nil, cursor motion with arrow keys will follow the
visual order of characters on the screen: <left> always moves to the
left, <right> always moves to the right, disregarding the surrounding
bidirectional context.

Chong Yidong's avatar
Chong Yidong committed
505
** Register changes
506

Glenn Morris's avatar
Glenn Morris committed
507
+++
508 509 510
*** All interactive commands that read a register (`copy-to-register', etc.)
now display a temporary window after `register-preview-delay' seconds
that summarizes existing registers.  To disable this, set that option to nil.
511 512
Interactive commands that read registers and want to make use of this
should use `register-read-with-preview' to read register names.
513

514
+++
Glenn Morris's avatar
Glenn Morris committed
515 516 517 518 519 520
*** New command `frameset-to-register' bound to `C-x r f', replacing
`frame-configuration-to-register'.  It offers similar functionality,
plus enhancements like the ability to restore deleted frames.
(`frame-configuration-to-register' still exists, but no longer has a
key binding.)

521 522 523
+++
*** New command `C-x C-k x' (`kmacro-to-register') stores keyboard
macros in registers.
524

525
+++
Chong Yidong's avatar
Chong Yidong committed
526
** New command `delete-duplicate-lines'.
527 528
This searches the region for identical lines, and removes all but one
copy of each repeated line.  The lines need not be sorted.
529

530
+++
531 532 533 534
** `blink-matching-paren' now only highlights the matching open-paren
by default, instead of moving cursor.  Set this variable to `jump' to
enable the old behavior.

535

536
* Changes in Specialized Modes and Packages in Emacs 24.4
537

538
+++
Johan Bockgård's avatar
Johan Bockgård committed
539
** More packages look for ~/.emacs.d/<foo> additionally to ~/.<foo>.
Stefan Monnier's avatar
Stefan Monnier committed
540 541 542 543 544 545 546
Affected files:
~/.emacs.d/timelog	replaces  ~/.timelog
~/.emacs.d/vip		replaces  ~/.vip
~/.emacs.d/viper	replaces  ~/.viper
~/.emacs.d/ido.last	replaces  ~/.ido.last
~/.emacs.d/kkcrc	replaces  ~/.kkcrc
~/.emacs.d/quickurls	replaces  ~/.quickurls
547
~/.emacs.d/idlwave/	replaces  ~/.idlwave/
Stefan Monnier's avatar
Stefan Monnier committed
548 549 550 551 552 553 554
~/.emacs.d/bdfcache.el	replaces  ~/.bdfcache.el
~/.emacs.d/places	replaces  ~/.emacs-places
~/.emacs.d/shadows	replaces  ~/.shadows
~/.emacs.d/shadow_todo	replaces  ~/.shadow_todo
~/.emacs.d/strokes	replaces  ~/.strokes
~/.emacs.d/notes	replaces  ~/.notes
~/.emacs.d/type-break	replaces  ~/.type-break
555 556 557 558 559
Also the following files used by the now obsolete otodo-mode.el:
~/.emacs.d/todo-do	replaces  ~/.todo-do
~/.emacs.d/todo-done	replaces  ~/.todo-done
~/.emacs.d/todo-top	replaces  ~/.todo-top

Chong Yidong's avatar
Chong Yidong committed
560
** Backtrace and debugger
561

562
+++
Glenn Morris's avatar
Glenn Morris committed
563
*** New Lisp debugger command `v' (`debugger-toggle-locals') toggles the
564
display of local variables of the current stack frame.
Glenn Morris's avatar
Glenn Morris committed
565

Glenn Morris's avatar
Glenn Morris committed
566
+++
Glenn Morris's avatar
Glenn Morris committed
567 568 569
*** The Lisp debugger's `e' command (`debugger-eval-expression') now includes
the lexical environment when evaluating the code in the context at point
(and so allows you to access lexical variables).
570

Glenn Morris's avatar
Glenn Morris committed
571 572
---
*** New minor mode `jit-lock-debug-mode' helps you debug code run via JIT Lock.
573

Xue Fuqiao's avatar
Xue Fuqiao committed
574
---
575
** Battery information can now be retrieved from BSD's `apm' utility.
576

577 578
---
** In the Buffer Menu, `M-s a C-o' shows matches for a regexp in marked buffers.
579

580 581
** Calendar and Diary

582
---
Chong Yidong's avatar
Chong Yidong committed
583 584
*** New faces `calendar-weekday-header', `calendar-weekend-header',
and `calendar-month-header'.
585

586
+++
587 588
*** New option `calendar-day-header-array'.

589
+++
Glenn Morris's avatar
Glenn Morris committed
590
*** New variable `diary-from-outlook-function', used by the command
591 592
`diary-from-outlook'.

593
---
Chong Yidong's avatar
Chong Yidong committed
594
*** The variable `calendar-font-lock-keywords' is obsolete.
595

596 597
** Calc

Glenn Morris's avatar
Glenn Morris committed
598
+++
599 600 601 602 603 604
*** Calc by default now uses the Gregorian calendar for all dates, and
uses January 1, 1 AD as its day number 1.  Previously Calc used the
Julian calendar for dates before September 14, 1752, and it used
December 31, 1 BC as its day number 1; the new scheme is more
consistent with Calendar's calendrical system and day numbering.

Glenn Morris's avatar
Glenn Morris committed
605 606 607
+++
*** The new option `calc-gregorian-switch' lets you configure if
(and when) Calc switches from the Julian to the Gregorian calendar.
608

Glenn Morris's avatar
Glenn Morris committed
609
+++
610 611
*** Support for ISO 8601 dates.

Chong Yidong's avatar
Chong Yidong committed
612 613 614 615
** CEDET

*** EDE

David Engster's avatar
David Engster committed
616
+++
Chong Yidong's avatar
Chong Yidong committed
617 618 619 620
**** The cpp-root project now supports executing a compile command.
It can be set through the new :compile-command slot or the
buffer-local variable `compile-command'.

David Engster's avatar
David Engster committed
621
+++
Chong Yidong's avatar
Chong Yidong committed
622 623 624 625
**** Better selection of include directories for the 'linux' project.
Include directories now support out-of-tree build directories and
target architecture auto-detection.

David Engster's avatar
David Engster committed
626
---
Chong Yidong's avatar
Chong Yidong committed
627 628 629 630 631
*** Semantic

**** Improved detection of used namespaces in current scope in C++.

**** Parsing of default values for variables and function arguments in C/C++.
632
They are also displayed by the summarize feature in the mode line.
Chong Yidong's avatar
Chong Yidong committed
633 634 635 636

**** Improved parsing of function pointers in C/C++.
This also includes parsing of function pointers as function arguments.

637 638
**** Parsing of C/C++ preprocessor macros that open new scope.
For example, this enables parsing of macros that open new namespaces.
Chong Yidong's avatar
Chong Yidong committed
639 640 641 642 643

**** Support for 'this' pointer in inline member functions in C++.

** cl-lib

644
+++
645
*** New macro `cl-tagbody'.
646
This executes statements while allowing for control transfer to labels.
Chong Yidong's avatar
Chong Yidong committed
647 648 649 650 651 652

+++
*** letf is now just an alias for cl-letf.

** CUA mode

653
+++
Chong Yidong's avatar
Chong Yidong committed
654
*** CUA mode now uses `delete-selection-mode' and `shift-select-mode'.
Glenn Morris's avatar
Glenn Morris committed
655 656
Hence, you can now enable it independently from those modes, and from
`transient-mark-mode'.
Chong Yidong's avatar
Chong Yidong committed
657

658
---
Chong Yidong's avatar
Chong Yidong committed
659 660
*** `cua-highlight-region-shift-only' is now obsolete.
You can disable `transient-mark-mode' to get the same result.
Chong Yidong's avatar
Chong Yidong committed
661

662 663 664
+++
*** CUA's rectangles can now be used without CUA by calling the command
`cua-rectangle-mark-mode'.
Chong Yidong's avatar
Chong Yidong committed
665

666 667
** CFEngine mode

Glenn Morris's avatar
Glenn Morris committed
668
---
669 670
*** Support for completion, ElDoc, and Flycheck has been added.

Glenn Morris's avatar
Glenn Morris committed
671
---
672 673
*** The current CFEngine syntax is parsed from "cf-promises -s json".
There is a fallback syntax available if you don't have cf-promises or
Glenn Morris's avatar
Glenn Morris committed
674
if your version doesn't support that option.  See option `cfengine-cf-promises'.
675

676 677
---
** Delete Selection mode can now be used without Transient Mark mode.
Chong Yidong's avatar
Chong Yidong committed
678

679 680
** Desktop

Glenn Morris's avatar
Glenn Morris committed
681 682 683 684
+++
*** `desktop-save-mode' by default now auto-saves an existing desktop file
after `desktop-auto-save-timeout'.  To disable this, customize that option
to nil (or zero).
685

Xue Fuqiao's avatar
Xue Fuqiao committed
686
+++
687 688 689 690
*** Desktop now saves and restores the frame/window configuration.
To disable this, set `desktop-restore-frames' to nil.
See also related options `desktop-restore-reuses-frames',
`desktop-restore-in-current-display', and `desktop-restore-forces-onscreen'.
691

692
+++
693
** New Dired minor mode `dired-hide-details-mode' toggles whether details,
694 695 696
such as file ownership or permissions, are visible in Dired buffers.
See the new options `dired-hide-details-hide-symlink-targets' and
`dired-hide-details-hide-information-lines' for customizing what to hide.
697

Glenn Morris's avatar
Glenn Morris committed
698 699 700 701
---
** You can enable ElDoc inside the `eval-expression' minibuffer with:
  (add-hook 'eval-expression-minibuffer-setup-hook 'eldoc-mode)
The results display in the mode line.
702

703 704
** Electric Pair mode

705
+++
Glenn Morris's avatar
Glenn Morris committed
706 707 708
*** New option `electric-pair-preserve-balance', enabled by default.
If non-nil, pairing/skipping only kicks in when that help the balance
of parentheses and quotes, i.e. the buffer should end up at least as
709 710
balanced as before.

Paul Eggert's avatar
Paul Eggert committed
711
You can further control this behavior by adjusting the predicates
Glenn Morris's avatar
Glenn Morris committed
712
stored in `electric-pair-inhibit-predicate' and `electric-pair-skip-self'.
713

714
+++
Glenn Morris's avatar
Glenn Morris committed
715
*** New option `electric-pair-delete-adjacent-pairs', enabled by default.
716 717 718 719
In `electric-pair-mode', the commands `backward-delete-char' and
`backward-delete-char-untabify' are now bound to electric variants
that delete the closer when invoked between adjacent pairs.

720
+++
Glenn Morris's avatar
Glenn Morris committed
721
*** New option `electric-pair-open-newline-between-pairs', enabled by default.
722 723 724 725
In `electric-pair-mode', inserting a newline between adjacent pairs
opens an extra newline after point, which is indented if
`electric-indent-mode' is also set.

726
+++
Glenn Morris's avatar
Glenn Morris committed
727 728 729 730
*** New option `electric-pair-skip-whitespace', enabled by default.
This controls if skipping over closing delimiters should jump over any
whitespace slack.  Setting it to `chomp' makes it delete this
whitespace.  See also the variable `electric-pair-skip-whitespace-chars'.
731

732
---
733 734
*** New variables control the pairing in strings and comments.
You can customize `electric-pair-text-pairs' and
Paul Eggert's avatar
Paul Eggert committed
735
`electric-pair-text-syntax-table' to tweak pairing behavior inside
736 737
strings and comments.

Glenn Morris's avatar
Glenn Morris committed
738
+++
739
** New EPA option `epa-mail-aliases'.
Glenn Morris's avatar
Glenn Morris committed
740 741
You can set this to a list of email address aliases that `epa-mail-encrypt'
should use to find keys.
742

743
---
744
** New ERC option `erc-accidental-paste-threshold-seconds'.
Glenn Morris's avatar
Glenn Morris committed
745
If set to a number, this can be used to avoid accidentally pasting large
Chong Yidong's avatar
Chong Yidong committed
746 747 748
amounts of data into the ERC input.

+++
Glenn Morris's avatar
Glenn Morris committed
749
** New ERT macro `skip-unless' allows skipping ERT tests.
Chong Yidong's avatar
Chong Yidong committed
750 751 752 753 754
See the ERT manual for details.

** Eshell

+++
Glenn Morris's avatar
Glenn Morris committed
755
*** `eshell' now supports visual subcommands and options.
Chong Yidong's avatar
Chong Yidong committed
756 757 758 759 760 761 762
Eshell has been able to handle "visual" commands (interactive,
non-line oriented commands such as top that require display
capabilities not provided by eshell) by running them in an Emacs
terminal emulator.  See `eshell-visual-commands'.

This feature has been extended to subcommands and options that make a
usually line-oriented command a visual command.  Typical examples are
Glenn Morris's avatar
Glenn Morris committed
763
"git log" and "git <command> --help", which display their output in a
Chong Yidong's avatar
Chong Yidong committed
764 765 766 767
pager by default.  See `eshell-visual-subcommands' and
`eshell-visual-options'.

---
Glenn Morris's avatar
Glenn Morris committed
768
*** New Eshell-Tramp module.
Chong Yidong's avatar
Chong Yidong committed
769 770 771 772 773
External su and sudo commands are now the default; the internal,
Tramp-using variants can still be used by enabling the eshell-tramp
module.

---
774
** New F90 mode option `f90-smart-end-names'.
Chong Yidong's avatar
Chong Yidong committed
775

Glenn Morris's avatar
Glenn Morris committed
776
** Icomplete
Glenn Morris's avatar
Glenn Morris committed
777
Icomplete is now more similar to Ido.
778

Glenn Morris's avatar
Glenn Morris committed
779
---
Glenn Morris's avatar
Glenn Morris committed
780 781 782 783
*** Icomplete by default now applies to all forms of minibuffer completion.
The variable `icomplete-with-completion-tables' (now a user option)
controls this.  To restore the old behavior, set it back to
'(internal-complete-buffer).
784

Glenn Morris's avatar
Glenn Morris committed
785
+++
Glenn Morris's avatar
Glenn Morris committed
786 787
*** You can navigate through and select completions using the keys
from `icomplete-minibuffer-map'.
788

Glenn Morris's avatar
Glenn Morris committed
789 790 791
---
*** The string that separates potential completions is now a customizable
option (`icomplete-separator').  The default is " | " rather than ",".
792

Glenn Morris's avatar
Glenn Morris committed
793 794 795 796 797 798
---
*** New face `icomplete-first-match'; and new options
`icomplete-hide-common-prefix' and `icomplete-show-matches-on-no-input'.

---
*** The option `icomplete-show-key-bindings' has been removed.
Chong Yidong's avatar
Chong Yidong committed
799 800

** Ido
801

802 803
+++
*** An Ido user manual is now included.
804

805 806 807 808
---
*** The option `ido-use-virtual-buffers' can now take the value `auto'.
This means to use virtual buffers if the current ido input does not match
an existing buffer.
809

810 811 812
---
*** The variable `ido-decorations' can optionally have two new elements,
which are the brackets to use around the sole remaining completion.
Chong Yidong's avatar
Chong Yidong committed
813 814 815

** Image mode

816
+++
Chong Yidong's avatar
Chong Yidong committed
817 818 819 820
*** New commands `n' (`image-next-file') and `p' (`image-previous-file')
visit the next image file and the previous image file in the same
directory, respectively.

821
+++
Chong Yidong's avatar
Chong Yidong committed
822 823 824 825
*** New commands to show specific frames of multi-frame images.
`f' (`image-next-frame') and `b' (`image-previous-frame') visit the
next or previous frame.  `F' (`image-goto-frame') shows a specific frame.

826
+++
Chong Yidong's avatar
Chong Yidong committed
827
*** New commands to speed up, slow down, or reverse animation.
828 829 830 831
`a +' (`image-increase-speed') and `a -' (`image-decrease-speed') to
speed up and slow down the animation.  `a r' (`image-reverse-speed')
to reverse it and `a 0' (`image-reset-speed') to reset it.

Chong Yidong's avatar
Chong Yidong committed
832 833