NEWS 44.1 KB
Newer Older
1
GNU Emacs NEWS -- history of user-visible changes.
2

3
Copyright (C) 2010-2011  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

17 18 19 20 21 22 23 24

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.


25
* Installation Changes in Emacs 24.1
Chong Yidong's avatar
Chong Yidong committed
26

27 28 29 30 31 32 33
** Configure links against libselinux if it is found.
You can disable this by using --without-selinux.

---
** By default, the installed Info and man pages are compressed.
You can disable this by configuring --without-compress-info.

Glenn Morris's avatar
Glenn Morris committed
34 35 36 37 38 39
---
** There are new configure options:
--with-mmdf, --with-mail-unlink, --with-mailhost.
These provide no new functionality, they just remove the need to edit
lib-src/Makefile by hand in order to use the associated features.

40
---
41
** Emacs can be compiled against Gtk+ 3.0 if you pass --with-x-toolkit=gtk3
42 43 44 45
to configure.  Note that other libraries used by Emacs, RSVG and GConf,
also depend on Gtk+.  You can disable them with --without-rsvg and
--without-gconf.

46 47
** There is a new configure option --enable-use-lisp-union-type.
This is only useful for Emacs developers to debug certain types of bugs.
Esa Peuha's avatar
Esa Peuha committed
48
This is not a new feature; only the configure flag is new.
49

Paul Eggert's avatar
Paul Eggert committed
50 51 52
** There is a new configure option --with-wide-int.
With it, Emacs integers typically have 62 bits, even on 32-bit machines.

53
---
Juanma Barranquero's avatar
Juanma Barranquero committed
54
** New translation of the Emacs Tutorial in Hebrew is available.
55 56 57
Type `C-u C-h t' to choose it in case your language setup doesn't
automatically select it.

58

59
* Startup Changes in Emacs 24.1
60

61
** The --unibyte, --multibyte, --no-multibyte, and --no-unibyte
Glenn Morris's avatar
Glenn Morris committed
62 63
command line arguments, and the EMACS_UNIBYTE environment variable, no
longer have any effect.  (They were declared obsolete in Emacs 23.)
64

65 66 67
** New command line option `--no-site-lisp' removes site-lisp directories
from load-path.  -Q now implies this.

68 69
** On Windows, Emacs now warns when the obsolete _emacs init file is used,
and also when HOME is set to C:\ by default.
70

71

72
* Changes in Emacs 24.1
73

74 75 76 77
** The inactive minibuffer has its own major mode `minibuffer-inactive-mode'.
This is handy for minibuffer-only frames, and is also used for the "mouse-1
pops up *Messages*" feature, which can now easily be changed.

78 79 80
** emacsclient changes

*** New emacsclient argument --parent-id ID can be used to open a
81 82 83
client frame in parent X window ID, via XEmbed.  This works like the
--parent-id argument to Emacs.

84
+++
85 86
*** New emacsclient argument -q/--quiet suppresses some status messages.

87 88 89 90
+++
*** New emacsclient argument --frame-parameters can be used to set the
frame parameters of a newly-created graphical frame.

91 92 93
*** If emacsclient shuts down as a result of Emacs signalling an
error, its exit status is 1.

94
** Completion
95 96
*** shell-mode uses pcomplete rules, with the standard completion UI.

97 98 99 100 101 102 103
*** Many packages have been changed to use completion-at-point rather than
their own completion code.

*** Completion in a non-minibuffer now tries to detect the end of completion
and pops down the *Completions* buffer accordingly.

*** Completion can cycle, depending on completion-cycle-threshold.
104

105 106
*** New completion style `substring'.

107 108 109 110
*** Completion style can be set per-category `completion-category-overrides'.

*** Completion of buffers now uses substring completion by default.

111
*** `completing-read' can be customized using the new variable
Juanma Barranquero's avatar
Juanma Barranquero committed
112
`completing-read-function'.
113

114 115 116 117
*** minibuffer-local-filename-must-match-map is not used any more.
Instead, the bindings in minibuffer-local-filename-completion-map are combined
with minibuffer-local-must-match-map.

118 119
** auto-mode-case-fold is now enabled by default.

120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139
** smtpmail changes

** smtpmail has been largely rewritten to upgrade to STARTTLS if
possible, and uses the auth-source framework for getting credentials.
The rewrite should be largely compatible with previous versions of
smtpmail, but there are two major incompatibilities:

** `smtpmail-auth-credentials' no longer exists.  That variable could
be either ~/.authinfo (in which case you're fine -- you won't see any
difference), but if it were a direct list of user names and passwords,
you will be prompted for the user name and the password instead, and
they will then be saved to ~/.authinfo.

** Similarly, if you had `smtpmail-starttls-credentials' set, then
then you need to put

machine smtp.whatever.foo port 25 key "~/.my_smtp_tls.key" cert "~/.my_smtp_tls.cert"

in your ~/.authinfo file instead.

140 141
** Internationalization changes

142
+++
143
*** Emacs now supports display and editing of bidirectional text.
144 145 146 147 148 149 150 151 152 153 154 155 156 157

See the node "Bidirectional Editing" in the Emacs Manual for some
initial documentation.

To turn this on in any given buffer, set the buffer-local variable
`bidi-display-reordering' to a non-nil value.  The default is nil.

The buffer-local variable `bidi-paragraph-direction', if non-nil,
forces each paragraph in the buffer to have its base direction
according to the value of this variable.  Possible values are
`right-to-left' and `left-to-right'.  If the value is nil (the
default), Emacs determines the base direction of each paragraph from
its text, as specified by the Unicode Bidirectional Algorithm.

158 159 160
The function `current-bidi-paragraph-direction' returns the actual
value of paragraph base direction at point.

161 162 163 164
Reordering of bidirectional text for display in Emacs is a "Full
bidirectionality" class implementation of the Unicode Bidirectional
Algorithm.

165 166 167 168
Note that some advanced display features, such as overlay strings and
`display' text properties, do not yet work correctly when
bidirectional text is reordered for display.

169 170 171 172 173 174 175 176 177 178 179 180 181 182
+++
*** Enhanced support for characters that have no glyphs in available fonts.
If a character has no glyphs in any of the available fonts, Emacs by
default will display it either as a hexadecimal code in a box or as a
thin 1-pixel space.  In addition to these two methods, Emacs can
display these characters as empty box, as an acronym, or not display
them at all.  To change how these characters are displayed, customize
the variable `glyphless-char-display-control'.

On character terminals these methods are used for characters that
cannot be encoded by the `terminal-coding-system'.

*** There are two new input methods for Persian/Farsi: farsi and farsi-translit.

183
** GTK scroll-bars are now placed on the right by default.
184 185
Use `set-scroll-bar-mode' to change this.

Jan Djärv's avatar
Jan Djärv committed
186
** GTK tool bars can have just text, just images or images and text.
187
Customize `tool-bar-style' to choose style.  On a Gnome desktop, the default
Jan Djärv's avatar
Jan Djärv committed
188 189
is taken from the desktop settings.

190 191
** GTK tool bars can be placed on the left/right or top/bottom of the frame.
The frame-parameter tool-bar-position controls this.  It takes the values
Jan D's avatar
Jan D committed
192
top, left, right or bottom.  The Options => Show/Hide menu has entries
193 194
for this.

195
** ImageMagick support.
Glenn Morris's avatar
Glenn Morris committed
196 197
It is now possible to use the ImageMagick library to load many new
image formats in Emacs.  By default, Emacs links with the ImageMagick
Glenn Morris's avatar
Glenn Morris committed
198 199 200
libraries if they are present at build time.  This needs ImageMagick
6.2.8 or newer (versions newer than 6.0.7 _may_ work but have not been
tested).  To disable ImageMagick support, use the configure option
201
`--without-imagemagick'.
Joakim Verona's avatar
Joakim Verona committed
202

203 204 205
The new function `imagemagick-types' returns a list of image file
extensions that your installation of ImageMagick supports.  The
function `imagemagick-register-types' enables ImageMagick support for
Esa Peuha's avatar
Esa Peuha committed
206
these image types, minus those listed in `imagemagick-types-inhibit'.
Joakim Verona's avatar
Joakim Verona committed
207

208
See the Emacs Lisp Reference Manual for more information.
Joakim Verona's avatar
Joakim Verona committed
209

210 211 212
** The colors for selected text (the region face) are taken from the GTK
theme when Emacs is built with GTK.

213 214 215
** Emacs uses GTK tooltips by default if built with GTK.  You can turn that
off by customizing x-gtk-use-system-tooltips.

216
** Lucid menus and dialogs can display antialiased fonts if Emacs is built
217 218
with Xft.  To change font, use the X resource font, for example:
Emacs.pane.menubar.font:  Courier-12
219

220
** On graphical displays, the mode-line no longer ends in dashes.
221 222
Also, the first dash (which does not indicate anything) is just
displayed as a space.
223

224
** On Nextstep/OSX, the menu bar can be hidden by customizing
Juanma Barranquero's avatar
Juanma Barranquero committed
225
ns-auto-hide-menu-bar.
226

227 228 229
** Basic SELinux support has been added.
This requires Emacs to be linked with libselinux at build time.

230 231 232 233
*** Emacs preserves the SELinux file context when backing up, and
optionally when copying files. To this end, copy-file has an extra
optional argument, and backup-buffer and friends include the SELinux
context in their return values.
234 235 236 237

*** The new functions file-selinux-context and set-file-selinux-context
get and set the SELinux context of a file.

238 239 240
*** Tramp offers handlers for file-selinux-context and set-file-selinux-context
for remote machines which support SELinux.

241 242 243 244
+++
** The function format-time-string now supports the %N directive, for
higher-resolution time stamps.

245
** The function kill-emacs is now run upon receipt of the signals SIGTERM
246
and SIGHUP, and upon SIGINT in batch mode.
247 248

** kill-emacs-hook is now also run in batch mode.
Glenn Morris's avatar
NEWS.  
Glenn Morris committed
249 250
If you have code that adds something to kill-emacs-hook, you should
consider if it is still appropriate to add it in the noninteractive case.
251

252
** New scrolling commands `scroll-up-command' and `scroll-down-command'
Juanma Barranquero's avatar
Juanma Barranquero committed
253 254
(bound to C-v/[next] and M-v/[prior]) do not signal errors at top/bottom
of buffer at first key-press (instead move to top/bottom of buffer)
255
when a new variable `scroll-error-top-bottom' is non-nil.
256

257 258 259
** New scrolling commands `scroll-up-line' and `scroll-down-line'
scroll a line instead of full screen.

260
** New property `scroll-command' should be set on a command's symbol to
Esa Peuha's avatar
Esa Peuha committed
261
define it as a scroll command affected by `scroll-preserve-screen-position'.
262

263 264 265 266 267 268 269 270 271 272 273 274 275 276
+++
** If you customize `scroll-conservatively' to a value greater than 100,
Emacs will never recenter point in the window when it scrolls due to
cursor motion commands or commands that move point (e.f., `M-g M-g').
Previously, you needed to use `most-positive-fixnum' as the value of
`scroll-conservatively' to achieve the same effect.

---
** ``Aggressive'' scrolling now honors the scroll margins.
If you customize `scroll-up-aggressively' or
`scroll-down-aggressively' and move point off the window, Emacs now
scrolls the window so as to avoid positioning point inside the scroll
margin.

277 278 279 280 281 282 283 284
** Trash changes

*** `delete-by-moving-to-trash' now only affects commands that specify
trashing.  This avoids inadvertently trashing temporary files.

*** Calling `delete-file' or `delete-directory' with a prefix argument
now forces true deletion, regardless of `delete-by-moving-to-trash'.

285 286 287
** New option `list-colors-sort' defines the color sort order
for `list-colors-display'.

288 289
** An Emacs Lisp package manager is now included.
This is a convenient way to download and install additional packages,
290
from a package repository at elpa.gnu.org.
291 292 293 294 295

*** `M-x list-packages' shows a list of packages, which can be
selected for installation.

*** New command `describe-package', bound to `C-h P'.
296 297 298 299 300 301

*** By default, all installed packages are loaded and activated
automatically when Emacs starts up.  To disable this, set
`package-enable-at-startup' to nil.  To change which packages are
loaded, customize `package-load-list'.

302 303 304 305
** An Emacs Lisp testing tool is now included.
Emacs Lisp developers can use this tool to write automated tests for
their code.  See the ERT info manual for details.

306 307 308 309
** Custom Themes

*** `M-x customize-themes' lists Custom themes which can be enabled.

310 311 312 313 314
*** New option `custom-theme-load-path' is the load path for themes.
Emacs no longer looks for custom themes in `load-path'.  The default
is to search in `custom-theme-directory', followed by a built-in theme
directory named "themes/" in `data-directory'.

315 316 317 318
*** New option `custom-safe-themes' records known-safe theme files.
If a theme is not in this list, Emacs queries before loading it, and
offers to save the theme to `custom-safe-themes' automatically.  By
default, all themes included in Emacs are treated as safe.
319

320 321 322
** The user option `remote-file-name-inhibit-cache' controls whether
the remote file-name cache is used for read access.

323 324
+++
** The use of a "mode: minor" specification in a file local variables section
325
to enable a minor-mode is deprecated.  Instead, use "eval: (minor-mode 1)".
326

327 328 329
** The standalone programs lib-src/digest-doc and sorted-doc have been
replaced with Lisp commands `doc-file-to-man' and `doc-file-to-info'.

Glenn Morris's avatar
Glenn Morris committed
330 331 332 333
---
** The standalone program `fakemail' has been removed.
If you need it, feedmail.el ought to provide a superset of the functionality.

334 335
** The variable `focus-follows-mouse' now always defaults to nil.

336 337
** New primitive `secure-hash' that supports many secure hash algorithms
including md5, sha-1 and sha-2 (sha-224, sha-256, sha-384 and sha-512).
338 339 340
The elisp implementation sha1.el is removed. Feature sha1 is provided
by default.

341 342 343 344 345
** Menu-bar changes

*** `menu-bar-select-buffer-function' lets you choose another operation
instead of `switch-to-buffer' when selecting an item in the Buffers menu.

346

347
* Editing Changes in Emacs 24.1
348

349 350 351 352 353 354
** Search changes

+++
*** C-y in Isearch is now bound to isearch-yank-kill, instead of
isearch-yank-line.

355 356 357 358
---
*** M-y in Isearch is now bound to isearch-yank-pop, instead of
isearch-yank-kill.

359 360 361
+++
*** M-s C-e in Isearch is now bound to isearch-yank-line.

Glenn Morris's avatar
Glenn Morris committed
362 363 364
+++
** There is a new command `count-words-region', which does what you expect.

365
** completion-at-point now handles tags and semantic completion.
366

367 368
** The default value of `backup-by-copying-when-mismatch' is now t.

369 370 371
** The command `just-one-space' (C-SPC), if given a negative argument,
also deletes newlines around point.

372 373 374 375 376 377 378 379
** Deletion changes

*** New option `delete-active-region'.
If non-nil, C-d, [delete], and DEL delete the region if it is active
and no prefix argument is given.  If set to `kill', these commands
kill instead.

*** New command `delete-forward-char', bound to C-d and [delete].
380 381
This is meant for interactive use, and obeys `delete-active-region'.
The command `delete-char' does not obey `delete-active-region'.
382 383 384 385 386 387 388 389

*** `delete-backward-char' is now a Lisp function.
Apart from obeying `delete-active-region', its behavior is unchanged.
However, the byte compiler now warns if it is called from Lisp; you
should use delete-char with a negative argument instead.

*** The option `mouse-region-delete-keys' has been deleted.

390 391
** Selection changes.

392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429
The default handling of clipboard and primary selections was changed
to conform with modern X applications.  In short, most commands for
killing and yanking text now use the clipboard, while mouse commands
use the primary selection.

In the following, we provide a list of these changes, followed by a
list of steps to get the old behavior back if you prefer that.

*** `mouse-drag-copy-region' now defaults to nil.
*** `select-active-regions' now defaults to t.
Merely selecting text (e.g. with drag-mouse-1) no longer puts it in
the kill-ring.  The selected text is put in the primary selection, if
the system possesses a separate primary selection facility (e.g. X).

**** `select-active-regions' also accepts a new value, `only'.
This means to only set the primary selection for temporarily active
regions (usually made by mouse-dragging or shift-selection);
"ordinary" active regions, such as those made with C-SPC followed by
point motion, do not alter the primary selection.

*** mouse-2 is now bound to `mouse-yank-primary'.
This pastes from the primary selection, ignoring the kill-ring.
Previously, mouse-2 was bound to `mouse-yank-at-click'.

*** `x-select-enable-clipboard' now defaults to t on all platforms.
*** `x-select-enable-primary' now defaults to nil.
Thus, commands that kill text or copy it to the kill-ring (such as
M-w, C-w, and C-k) also use the clipboard---not the primary selection.

**** The "Copy", "Cut", and "Paste" items in the "Edit" menu are now
exactly equivalent to, respectively M-w, C-w, and C-y.

**** Note that on MS-Windows, `x-select-enable-clipboard' was already
non-nil by default, as Windows does not support the primary selection
between applications.

*** To return to the previous behavior, do the following:

430
**** Change `select-active-regions' to nil.
431 432 433 434
**** Change `mouse-drag-copy-region' to t.
**** Change `x-select-enable-primary' to t (on X only).
**** Change `x-select-enable-clipboard' to nil.
**** Bind `mouse-yank-at-click' to mouse-2.
435

436 437
*** Support for X cut buffers has been removed.

438 439
*** Support for X clipboard managers has been added.

440 441 442
**** To inhibit use of the clipboard manager, set
`x-select-enable-clipboard-manager' to nil.

443 444 445 446
** New command `rectangle-number-lines', bound to `C-x r N', numbers
the lines in the current rectangle.  With an prefix argument, this
prompts for a number to count from and for a format string.

447 448 449 450
** The command shell prompts for the shell path name, when the default
directory is a remote file name and neither environment variable
$ESHELL nor variable `explicit-shell-file-name' is set.

451

452
* Changes in Specialized Modes and Packages in Emacs 24.1
453

454 455
** comint and modes derived from it use the generic completion code.

456 457 458
** Compilation mode

*** Compilation mode can be used without font-lock-mode.
459 460
`compilation-parse-errors-function' is now obsolete.

461 462 463 464
*** `compilation-filter-start' is let-bound to the start of the text
inserted by the compilation filter function, when calling
compilation-filter-hook.

465 466
** The Landmark game is now invoked with `landmark', not `lm'.

467
** Prolog mode has been completely revamped, with lots of additional
Glenn Morris's avatar
Glenn Morris committed
468
functionality such as more intelligent indentation, electricity, support for
469 470
more variants, including Mercury, and a lot more.

471 472 473
** shell-mode can track your cwd by reading it from your prompt.
Just set shell-dir-cookie-re to an appropriate regexp.

474 475
** Modula-2 mode provides auto-indentation.

476 477
** BibTeX mode

478 479
*** New command `bibtex-search-entries' bound to C-c C-a.

480 481
*** New `bibtex-entry-format' option `sort-fields', disabled by default.

482 483
*** New variable `bibtex-search-entry-globally'.

484 485
** latex-electric-env-pair-mode keeps \begin..\end matched on the fly.

Glenn Morris's avatar
Glenn Morris committed
486
** FIXME: xdg-open for browse-url and reportbug, 2010/08.
Glenn Morris's avatar
Glenn Morris committed
487

488
** Archive Mode has basic support to browse and update 7z archives.
489

490
** browse-url has gotten a new variable that is used for mailto: URLs,
Juanma Barranquero's avatar
Juanma Barranquero committed
491
`browse-url-mailto-function', which defaults to `browse-url-mail'.
492

493 494 495
** `url-queue-retrieve' downloads web pages asynchronously, but allow
controlling the degree of parallelism.

496 497 498 499 500 501
** Directory local variables can apply to file-less buffers, in certain modes
(eg dired, vc-dir, log-edit).  For example, adding
"(diff-mode . ((mode . whitespace)))" to your .dir-locals.el file,
will turn on `whitespace-mode' for *vc-diff* buffers.  Modes should
call `hack-dir-local-variables-non-file-buffer' to support this.

502 503 504 505 506
+++
** You can prevent directory local variables from applying to subdirectories.
Add an element (subdirs . nil) to the alist portion of any variables
settings to indicate said section should not be applied to subdirectories.

507 508 509 510 511 512 513 514
** ERC changes

*** New vars `erc-autojoin-timing' and `erc-autojoin-delay'.
If the value of `erc-autojoin-timing' is 'ident, ERC autojoins after a
successful NickServ identification, or after `erc-autojoin-delay'
seconds.  The default value, 'ident, means to autojoin immediately
after connecting.

515 516 517 518 519
*** New variable `erc-coding-system-precedence': If we use `undecided'
as the server coding system, this variable will then be consulted.
The default is to decode strings that can be decoded as utf-8 as
utf-8, and do the normal `undecided' decoding for the rest.

520 521 522 523 524 525
** Eshell changes

*** The default value of eshell-directory-name is a directory named
"eshell" in `user-emacs-directory'.  If the old "~/.eshell/" directory
exists, that is used instead.

526 527 528
** In ido-mode, C-v is no longer bound to ido-toggle-vc.
The reason is that this interferes with cua-mode.

529
** partial-completion-mode is now obsolete.
530 531 532
You can get a comparable behavior with:
(setq completion-styles '(partial-completion initials))
(setq completion-pcm-complete-word-inserts-delimiters t)
533

Stefan Monnier's avatar
Stefan Monnier committed
534
** mpc.el: Can use pseudo tags of the form tag1|tag2 as a union of two tags.
Esa Peuha's avatar
Esa Peuha committed
535

Glenn Morris's avatar
Glenn Morris committed
536 537
** server can listen on a specific port using the server-port option.

Glenn Morris's avatar
Glenn Morris committed
538 539
** Calendar, Diary, and Appt

Glenn Morris's avatar
Glenn Morris committed
540 541 542 543
+++
*** Diary entries can contain non-printing `comments'.
See the variable `diary-comment-start'.

544 545 546 547
+++
*** Appointments can specify their individual warning times.
See the variable `appt-warning-time-regexp'.

548 549 550 551 552
---
*** The function specified by `appt-disp-window-function' may be passed
lists of arguments if multiple appointments are due at similar times.
If you are using a custom function for this, you should update it.

553
+++
554 555
*** New function `diary-hebrew-birthday'.

556 557 558 559
---
*** Elements of `calendar-day-abbrev-array' and `calendar-month-abbrev-array'
may no longer be nil, but must all be strings.

Glenn Morris's avatar
Glenn Morris committed
560 561 562 563 564 565 566 567 568 569 570 571 572
---
*** The obsolete (since Emacs 22.1) method of enabling the appt package
by adding appt-make-list to diary-hook has been removed.  Use appt-activate.

---
*** Some appt variables (obsolete since Emacs 22.1) have been removed:
appt-issue-message (use the function appt-activate)
appt-visible/appt-msg-window (use the variable appt-display-format)

---
*** Some diary function aliases (obsolete since Emacs 22.1) have been removed:
view-diary-entries, list-diary-entries, show-all-diary-entries

573 574 575 576
** Customize

*** Customize buffers now contain a search field.
The search is performed using `customize-apropos'.
577
To turn off the search field, set custom-search-field to nil.
578 579 580 581 582 583 584 585 586

*** Custom options now start out hidden if at their default values.
Use the arrow to the left of the option name to toggle visibility.

*** custom-buffer-sort-alphabetically now defaults to t.

*** The color widget now has a "Choose" button, which allows you to
choose a color via list-colors-display.

587 588 589 590 591
** Dired-x

*** dired-jump and dired-jump-other-window called with a prefix argument
read a file name from the minibuffer instead of using buffer-file-name.

592 593 594
+++
*** The `dired local variables' feature provided by Dired-x is obsolete.
The standard directory local variables feature replaces it.
595

Michael Mauger's avatar
Michael Mauger committed
596 597
** SQL Mode enhancements.

Michael Mauger's avatar
Michael Mauger committed
598 599
*** `sql-dialect' is a synonym for `sql-product'.

600
*** Added ability to login with a port on MySQL and Postgres.
Michael Mauger's avatar
Michael Mauger committed
601
The custom variable `sql-port' can be specified for connection to
602 603 604
MySQL or Postgres servers.  By default, the port is not listed in
either login parameter, but will be added to the command line if set
to a non-zero value.
Michael Mauger's avatar
Michael Mauger committed
605

Michael Mauger's avatar
Michael Mauger committed
606 607 608 609 610 611 612 613 614 615 616 617
*** Dynamic selection of product in an SQL interactive session.
If you use `sql-product-interactive' to start an SQL interactive
session it uses the current value of `sql-product'.  Preceding the
invocation with C-u will force it to ask for the product before
creating the session.

*** Renaming a SQL interactive buffer when it is created.
Prefixing the SQL interactive commands (`sql-sqlite', `sql-postgres',
`sql-mysql', etc.) with C-u will force a new interactive session to be
started and will prompt for the new name.  This will reduce the need
for `sql-rename-buffer' is most common use cases.

618 619 620 621 622 623 624 625
*** Command continuation prompts in SQL interactive mode are suppressed.
Multiple line commands in SQL interactive mode, generate command
continuation prompts which needlessly confuse the output.  These
prompts are now filtered out from the output.  This change impacts
multiple line SQL statements entered with C-j between each line,
statements yanked into the buffer and statements sent with
`sql-send-*' functions.

Michael Mauger's avatar
Michael Mauger committed
626 627 628 629 630
*** Custom variables control prompting for login parameters.
Each supported product has a custom variable `sql-*-login-params'
which is a list of the parameters to be prompted for before a
connection is established.

631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658
The lists consist of the following five tokens: `user', `password',
`database', `server', and `port'.  The order in which they appear is
the order in which they are prompted.  The tokens symbols can be
replaced by a sublist starting with the token and followed by a plist
which control the prompting for values.  The tokens `user',
`database', and `server' each can take a property of :default which
specifies the value to be used if no value is entered.  The
`database', `server', and `port' tokens handle the :completion
property which restricts the entry to either one of the values in the
list or to one of the values returned by the function provided as the
property value.  The `database' and `server' tokens also accept the
:file property whose value is a regexp to identify useful file names.

  (user :default DEF)
  (database :default DEF
            :file FILEPAT
            :completion COMPLETE)
  (server :default DEF
          :file FILEPAT
          :completion COMPLETE)

The FILEPAT when :file is specified is a regexp that will match valid
file names (without the directory portion).  Generally these strings
will be of the form ".+\.SUF" where SUF is the desired file suffix.

When :completion is specified, the COMPLETE corresponds to the
PREDICATE argument to the `completing-read' function (a list of
possible values or a function returning such a list).
659

660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686
*** Added `sql-connection-alist' to record login parameter values.
An alist for recording different username, database and server
values.  If there are multiple databases that you connect to the
parameters needed can be stored in this alist.

For example, the following might be set in the user's init.el:

  (setq sql-connection-alist
        '((dev (sql-product 'sqlite)
               (sql-database "/home/mmaug/dev.db"))
          (prd (sql-product 'oracle)
               (sql-user "mmaug")
               (sql-database "iprd2a"))))

This defines two connections named "dev" and "prd".

*** Added `sql-connect' to use predefined connections.
Sets the login parameters based on the values in the
`sql-connection-alist' and start a SQL interactive session.  Any
values specified in the connection will not be prompted for.

In the example above, if the user were to invoke M-x sql-connect, they
would be prompted for the connection.  The user can respond with
either "dev" or "prd".  The "dev" connection would connect to the
SQLite database without prompting; the "prd" connection would prompt
for the users password and then connect to the Oracle database.

687
**** Added SQL->Start... submenu when connections are defined.
Esa Peuha's avatar
Esa Peuha committed
688
When connections have been defined, there is a submenu available that
689 690 691 692 693 694 695 696 697
allows the user to select one to start a SQLi session.  The "Start
SQLi Session" item moves to the "Start..." submenu when cnnections
have been defined.

**** Added "Save Connection" menu item in SQLi buffers.
When a SQLi session is not started by a connection then
`sql-save-connection' will gather the login params specified for the
session and save them as a new connection.

698 699 700 701 702 703 704 705
*** List database objects and details.
Once a SQL interactive session has been started, you can get a list of
the objects in the database and see details of those objects.  The
objects shown and the details available are product specific.

**** List all objects.
Using `M-x sql-list-all', `C-c C-l a' or selecting "SQL->List all
objects" will list all the objects in the database.  At a minimum it
Glenn Morris's avatar
Glenn Morris committed
706
lists the tables and views in the database.  Preceding the command by
707 708 709 710 711 712 713
universal argument may provide additional details or extend the
listing to include other schemas objects.  The list will appear in a
separate window in view-mode.

**** List Table details.
Using `M-x sql-list-table', `C-c C-l t' or selecting "SQL->List Table
details" will ask for the name of a database table or view and display
Glenn Morris's avatar
Glenn Morris committed
714
the list of columns in the relation.  Preceding the command with the
715 716 717
universal argument may provide additional details about each column.
The list will appear in a separate window in view-mode.

Michael Mauger's avatar
Michael Mauger committed
718 719 720 721 722 723
*** Added option `sql-send-terminator'.
When set makes sure that each command sent with `sql-send-*' commands
are properly terminated and submitted to the SQL processor.

*** Added option `sql-oracle-scan-on'.
When set commands sent to Oracle's SQL*Plus are scanned for strings
724 725 726
starting with an ampersand and the user is asked for replacement text.
In general, the SQL*Plus option SCAN should always be set OFF under
SQL interactive mode and this option used in its place.
Michael Mauger's avatar
Michael Mauger committed
727 728

*** SQL interactive mode will replace tabs with spaces.
Glenn Morris's avatar
Glenn Morris committed
729
This prevents the command interpreter for MySQL and Postgres from
Michael Mauger's avatar
Michael Mauger committed
730 731 732 733 734
listing object name completions when being sent text via
`sql-send-*' functions.

*** An API for manipulating SQL product definitions has been added.

735 736 737 738 739 740 741 742
** Image mode

*** RET (`image-toggle-animation') toggles animation, if the displayed
image can be animated.

*** Option `image-animate-loop', if non-nil, loops the animation.
If nil, `image-toggle-animation' plays the animation once.

743 744
** sregex.el is now obsolete, since rx.el is a strict superset.

745
** s-region.el and pc-select are now declared obsolete,
Glenn Morris's avatar
Glenn Morris committed
746
superseded by shift-select-mode enabled by default in 23.1.
747
** pc-mode.el is also declared obsolete.
748 749 750 751 752 753
** gdb-mi

*** GDB User Interface migrated to GDB Machine Interface and now
supports multithread non-stop debugging and debugging of several
threads simultaneously.

754 755 756 757 758
** D-Bus

*** It is possible now, to access alternative buses than the default
system or session bus.

759 760 761 762 763 764
*** dbus-register-{service,method,property}
The -method and -property functions do not automatically register
names anymore.

The new function dbus-register-service registers a service known name
on a D-Bus without simultaneously registering a property or a method.
765

766 767
** Tramp

768 769
*** There exists a new inline access method "ksu" (kerberized su).

770
*** The following access methods are discontinued: "ssh1_old",
771
"ssh2_old", "scp1_old", "scp2_old", "imap", "imaps" and "fish".
772

773 774 775
*** The option `ange-ftp-binary-file-name-regexp' has changed its
default value to "".

776 777 778
** VC and related modes

*** Support for pulling on distributed version control systems.
779
The vc-pull command runs a "pull" operation, if it is supported.
780
This updates the current branch from upstream.  A prefix argument
781
means to prompt the user for specifics, e.g. a pull location.
782

Sam Steingold's avatar
typo  
Sam Steingold committed
783
**** `vc-update' is now an alias for `vc-pull'.
784

785
**** Currently supported by Bzr, Git, and Mercurial.
786 787 788

*** Support for merging on distributed version control systems.
The vc-merge command now runs a "merge" operation, if it is supported.
789 790
This merges another branch into the current one.  This command prompts
the user for specifics, e.g. a merge source.
791

792
**** Currently supported for Bzr, Git, and Mercurial.
793

794
*** New option `vc-revert-show-diff' controls whether `vc-revert'
795
shows a diff while querying the user.  It defaults to t.
796

797 798 799 800 801
*** Log entries in some Log View buffers can be toggled to display a
longer description by typing RET (log-view-toggle-entry-display).
In the Log View buffers made by `C-x v L' (vc-print-root-log), you can
use this to display the full log entry for the revision at point.

802
**** Currently supported for Bzr, Git, and Mercurial.
803 804 805 806

**** Packages using Log View mode can enable this functionality by
binding `log-view-expanded-log-entry-function' to a suitable function.

807 808 809
*** New command `vc-ediff' allows visual comparison of two revisions
of a file similar to `vc-diff', but using ediff backend.

810 811 812 813
** CC Mode (C, C++, etc.)

*** New feature to "guess" the style in an existing buffer.

Glenn Morris's avatar
Glenn Morris committed
814 815
** Miscellaneous

816 817 818
+++
*** f90.el has some support for Fortran 2008 syntax.

Glenn Morris's avatar
Glenn Morris committed
819 820 821
---
*** `copyright-fix-years' can optionally convert consecutive years to ranges.

822 823
*** New command `nato-region' converts text to NATO phonetic alphabet.

824 825 826 827 828 829 830 831
*** The new command `info-display-manual' will display an Info manual
specified by its name.  If that manual is already visited in some Info
buffer within the current session, the command will display that
buffer.  Otherwise, it will load the manual and display it.  This is
handy if you have many manuals in many Info buffers, and don't
remember the name of the buffer visiting the manual you want to
consult.

832 833

* New Modes and Packages in Emacs 24.1
Stefan Monnier's avatar
Stefan Monnier committed
834

Leo Liu's avatar
Leo Liu committed
835 836 837
** Occur Edit mode applies edits made in *Occur* buffers to the
original buffers.  It is bound to C-x C-q in Occur mode.

838 839
** New global minor modes electric-pair-mode, electric-indent-mode,
and electric-layout-mode.
840

841 842 843
** tabulated-list.el provides a generic major mode for tabulated data,
from which other modes can be derived.

844 845
** pcase.el provides the ML-style pattern matching macro `pcase'.

Michael Albinus's avatar
Michael Albinus committed
846 847
** secrets.el is an implementation of the Secret Service API, an
interface to password managers like GNOME Keyring or KDE Wallet.  The
848 849 850
Secret Service API requires D-Bus for communication.  The command
`secrets-show-secrets' offers a buffer with a visualization of the
secrets.
Michael Albinus's avatar
Michael Albinus committed
851

852 853 854
** notifications.el provides an implementation of the Desktop
Notifications API.  It requires D-Bus for communication.

855 856 857
** soap-client.el supports access to SOAP web services from Emacs.
soap-inspect.el is an interactive inspector for SOAP WSDL structures.

858 859
** xmodmap-generic-mode for xmodmap files.

860 861 862 863 864 865 866
** New emacs-lock.el package.
(The pre-existing one has been renamed to old-emacs-lock.el and moved
to obsolete/.)  Now, Emacs Lock is a proper minor mode
`emacs-lock-mode'.  Protection against exiting Emacs and killing the
buffer can be set separately.  The mechanism for auto turning off
protection for buffers with inferior processes has been generalized.

867 868

* Incompatible Lisp Changes in Emacs 24.1
Stefan Monnier's avatar
Stefan Monnier committed
869

870 871 872 873 874 875 876
---
** `char-direction-table' and the associated function `char-direction'
were deleted.  They were buggy and inferior to the new support of
bidirectional editing introduced in Emacs 24.  If you need the
bidirectional properties of a character, use `get-char-code-property'
with the last argument `bidi-class'.

877 878 879 880 881
** `copy-directory' now copies the source directory as a subdirectory
of the target directory, if the latter is an existing directory.  The
new optional arg COPY-CONTENTS, if non-nil, makes the function copy
the contents directly into a pre-existing target directory.

882 883 884 885 886
** `compose-mail' now accepts an optional 8th arg, RETURN-ACTION, and
passes it to the mail user agent function.  This argument specifies an
action for returning to the caller after finishing with the mail.
This is currently used by Rmail to delete a mail window.

887 888 889 890 891
** For mouse click input events in the text area, the Y pixel
coordinate in the POSITION list now counts from the top of the text
area, excluding any header line.  Previously, it counted from the top
of the header line.

892 893
** Remove obsolete name `e' (use `float-e' instead).

894 895
** A backquote not followed by a space is now always treated as new-style.

896
** Test for special mode-class was moved from view-file to view-buffer.
897 898
FIXME: This only says what was changed, but not what are the
programmer-visible consequences.
899

900
** Passing a nil argument to a minor mode function now turns the mode
Juanma Barranquero's avatar
Juanma Barranquero committed
901
ON unconditionally.
902 903

** During startup, Emacs no longer adds entries for `menu-bar-lines'
Juanma Barranquero's avatar
Juanma Barranquero committed
904 905 906 907 908
and `tool-bar-lines' to `default-frame-alist' and `initial-frame-alist'.
With these alist entries omitted, `make-frame' checks the value of the
variable `menu-bar-mode'/`tool-bar-mode' to determine whether to create
a menu-bar or tool-bar, respectively.  If the alist entries are added,
they override the value of `menu-bar-mode'/`tool-bar-mode'.
909

Chong Yidong's avatar
Chong Yidong committed
910 911 912 913
** Regions created by mouse dragging are now normal active regions,
similar to the ones created by shift-selection.  In previous Emacs
versions, these regions were delineated by `mouse-drag-overlay', which
has now been removed.
914

915 916
** cl.el no longer provides `cl-19'.

917 918 919 920 921 922 923 924
** The following functions and aliases, obsolete since at least Emacs 21.1,
have been removed:
comint-kill-output, decompose-composite-char, outline-visible,
internal-find-face, internal-get-face, frame-update-faces,
frame-update-face-colors, x-frob-font-weight, x-frob-font-slant,
x-make-font-bold, x-make-font-demibold, x-make-font-unbold
x-make-font-italic, x-make-font-oblique, x-make-font-unitalic
x-make-font-bold-italic, mldrag-drag-mode-line, mldrag-drag-vertical-line,
925 926
iswitchb-default-keybindings, char-bytes, isearch-return-char,
make-local-hook
927 928 929

** The following variables and aliases, obsolete since at least Emacs 21.1,
have been removed:
930 931
checkdoc-minor-keymap, vc-header-alist, directory-sep-char,
font-lock-defaults-alist
932

Glenn Morris's avatar
Glenn Morris committed
933 934 935
** The following files, obsolete since at least Emacs 21.1, have been removed:
sc.el, x-menu.el, rnews.el, rnewspost.el

936 937
** FIXME finder-inf.el changes.

938 939

* Lisp changes in Emacs 24.1
940

941 942 943 944 945 946 947 948 949 950 951
** Completion
*** New variable completion-extra-properties used to specify extra properties
of the current completion:
- :annotate-function, same as the old completion-annotate-function.
- :exit-function, function to call after completion took place.

*** Functions on completion-at-point-functions can return any of the properties
valid for completion-extra-properties.

*** completion-annotate-function is obsolete.

952 953 954 955 956 957 958 959
*** New `metadata' method for completion tables.  The metadata thus returned
can specify various details of the data returned by `all-completions':
- `category' is the kind of objects returned (e.g., `buffer', `file', ...),
  used to select a style in completion-category-overrides.
- `annotation-function' to add annotations in *Completions*.
- `display-sort-function' to specify how to sort entries in *Completions*.
- `cycle-sort-function' to specify how to sort entries when cycling.

Juanma Barranquero's avatar
Juanma Barranquero committed
960
** `glyphless-char-display' can now distinguish between graphical and
961 962
text terminal display, via a char-table entry that is a cons cell.

963 964 965 966 967 968
** `open-network-stream' can now be used to open an encrypted stream.
It now accepts an optional `:type' parameter for initiating a TLS
connection, directly or via STARTTLS.  To do STARTTLS, additional
parameters (`:end-of-command', `:success', `:capabilities-command')
must also be supplied.

969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984
** Code can now use lexical scoping by default instead of dynamic scoping.
The `lexical-binding' variable lets code use lexical scoping for local
variables.  It is typically set via file-local variables, in which case it
applies to all the code in that file.

*** `eval' takes a new optional argument `lexical' to choose the new lexical
binding instead of the old dynamic binding mode.

*** Lexically scoped interpreted functions are represented with a new form
of function value which looks like (closure ENV ARGS &rest BODY).

*** New macro `letrec' to define recursive local functions.

*** New function `special-variable-p' to check whether a variable is
declared as dynamically bound.

985 986 987 988 989
** pre/post-command-hook are not reset to nil upon error.
Instead, the offending function is removed.

** New low-level function run-hook-wrapped.

990 991 992 993 994 995
** `server-eval-at' is provided to allow evaluating forms on different
Emacs server instances.

** `call-process' allows a `(:file "file")' spec to redirect STDOUT to
a file.

996
** byte-compile-disable-print-circle is obsolete.
997
** deferred-action-list and deferred-action-function are obsolete.
998 999 1000 1001 1002
** Removed the stack-trace-on-error variable.
Also the debugger can now "continue" from an error, which means it will jump
to the error handler as if the debugger had not been invoked instead of
jumping all the way to the top-level.

1003 1004 1005
** New function `read-char-choice' reads a restricted set of characters,
discarding any inputs not inside the set.

1006 1007 1008 1009 1010
** `image-library-alist' is renamed to `dynamic-library-alist'.
The variable is now used to load all kind of supported dynamic libraries,
not just image libraries.  The previous name is still available as an
obsolete alias.

1011 1012 1013 1014 1015 1016 1017 1018 1019 1020
** New variable syntax-propertize-function to set syntax-table properties.
Replaces font-lock-syntactic-keywords which are now obsolete.
This allows syntax-table properties to be set independently from font-lock:
just call syntax-propertize to make sure the text is propertized.
Together with this new variable come a new hook
syntax-propertize-extend-region-functions, as well as two helper functions:
syntax-propertize-via-font-lock to reuse old font-lock-syntactic-keywords
as-is; and syntax-propertize-rules which provides a new way to specify
syntactic rules.

Stefan Monnier's avatar
Stefan Monnier committed
1021 1022
** New hook post-self-insert-hook run at the end of self-insert-command.

1023
+++
1024
** Syntax tables support a new "comment style c" additionally to style b.
1025
** frame-local variables cannot be let-bound any more.
1026
** prog-mode is a new major-mode meant to be the parent of programming mode.
1027 1028
** define-minor-mode accepts a new keyword :variable.

Esa Peuha's avatar
Esa Peuha committed
1029
** `delete-file' and `delete-directory' now accept optional arg TRASH.
1030 1031 1032
Trashing is performed if TRASH and `delete-by-moving-to-trash' are
both non-nil.  Interactively, TRASH defaults to t, unless a prefix
argument is supplied (see Trash changes, above).
1033

1034 1035
** buffer-substring-filters is obsoleted by filter-buffer-substring-functions.

1036 1037 1038 1039 1040
** `facemenu-read-color' is now an alias for `read-color'.
The command `read-color' now requires a match for a color name or RGB
triplet, instead of signalling an error if the user provides a invalid
input.

1041 1042
** Tool-bars can display separators.
Tool-bar separators are handled like menu separators in menu-bar maps,
1043
i.e. via menu entries of the form `(menu-item "--")'.
1044

1045 1046
** Image API

1047 1048 1049 1050 1051 1052 1053 1054
*** Animated images support (currently animated gifs only).

**** `image-animated-p' returns non-nil if an image can be animated.

**** `image-animate' animates a supplied image spec.

**** `image-animate-timer' returns the timer object for an image that
is being animated.
1055

1056 1057
*** `image-extension-data' is renamed to `image-metadata'.

1058 1059 1060
** XML and HTML parsing

*** If Emacs is compiled with libxml2 support (which is the default),
1061
two new Emacs Lisp-level functions are defined:
1062 1063
`libxml-parse-html-region' (which will parse "real world" HTML)
and `libxml-parse-xml-region' (which parses XML).  Both return an
1064 1065 1066 1067
Emacs Lisp parse tree.

FIXME: These should be front-ended by xml.el.

1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082
** GnuTLS

*** Emacs can be compiled with libgnutls support
This is the default.  You will then be able to use the functionality
in gnutls.el, namely the `open-gnutls-stream' and `gnutls-negotiate'
functions.  It's easiest to use these functions through
`open-network-stream' because it can upgrade connections through
STARTTLS opportunistically or use plain SSL, depending on your needs.

Only versions 2.8.x and higher or GnuTLS have been tested.

*** gnutls-log-level
Set `gnutls-log-level' higher than 0 to get debug output.  1 is for
important messages, 2 is for debug data, and higher numbers are as per
the GnuTLS logging conventions.  The output is in *Messages*.
1083

1084 1085 1086 1087
** Isearch

*** New hook `isearch-update-post-hook' that runs in `isearch-update'.

1088 1089 1090 1091 1092 1093 1094
** Progress reporters can now "spin".
The MIN-VALUE and MAX-VALUE arguments of `make-progress-reporter' can
now be nil, or omitted.  This makes a "non-numeric" reporter.  Each
time you call `progress-reporter-update' on that progress reporter,
with a nil or omitted VALUE argument, the reporter message is
displayed with a "spinning bar".

1095 1096 1097
** New variable `revert-buffer-in-progress-p' is true while a buffer is
being reverted, even if the buffer has a local `revert-buffer-function'.

1098 1099 1100
** New variables `delayed-warnings-list' and `delayed-warnings-hook' allow
deferring warnings until the main command loop is executed.

1101 1102 1103 1104
+++
** `set-auto-mode' now respects mode: local variables at the end of files,
as well as those in the -*- line.

1105 1106 1107
---
** rx.el has a new `group-n' construct for explicitly numbered groups.

1108
** keymaps can inherit from multiple parents.
1109 1110

* Changes in Emacs 24.1 on non-free operating systems
Thien-Thi Nguyen's avatar
Thien-Thi Nguyen committed
1111

Juanma Barranquero's avatar
Juanma Barranquero committed
1112
** New configure.bat option --enable-checking builds Emacs with extra
1113 1114
runtime checks.

1115
** New configure.bat option --distfiles to specify files to be
Juanma Barranquero's avatar
Juanma Barranquero committed
1116
included in binary distribution.
1117

1118 1119 1120 1121 1122 1123
** New configure.bat option --without-gnutls to disable automatic
GnuTLS detection.

** New configure.bat option --lib for general library linkage, works
with the USER_LIBS build variable.

Juanma Barranquero's avatar
Juanma Barranquero committed
1124
** New make target `dist' to create binary distribution for MS Windows.
1125

1126

Dave Love's avatar
#