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29b7722a | 1 | GNU Emacs NEWS -- history of user-visible changes. |
5b87ad55 | 2 | |
a1ed8b05 | 3 | Copyright (C) 2010-2012 Free Software Foundation, Inc. |
5b87ad55 | 4 | See the end of the file for license conditions. |
a933dad1 | 5 | |
893db5bc | 6 | Please send Emacs bug reports to bug-gnu-emacs@gnu.org. |
9a21d88b KS |
7 | If possible, use M-x report-emacs-bug. |
8 | ||
eb199145 | 9 | This file is about changes in Emacs version 24. |
9a21d88b | 10 | |
eb199145 GM |
11 | See files NEWS.23, NEWS.22, NEWS.21, NEWS.20, NEWS.19, NEWS.18, |
12 | and NEWS.1-17 for changes in older Emacs versions. | |
9a21d88b KS |
13 | |
14 | You can narrow news to a specific version by calling `view-emacs-news' | |
15 | with a prefix argument or by typing C-u C-h C-n. | |
3f7194ed | 16 | |
a1ed8b05 GM |
17 | Temporary note: |
18 | +++ indicates that the appropriate manual has already been updated. | |
19 | --- means no change in the manuals is called for. | |
20 | When you add a new item, please add it without either +++ or --- | |
21 | so we will look at it and add it to the manual. | |
22 | ||
23 | \f | |
24 | * Installation Changes in Emacs 24.2 | |
25 | \f | |
26 | * Startup Changes in Emacs 24.2 | |
e5fcdb5e GM |
27 | |
28 | ** Emacs no longer searches for `leim-list.el' files beneath the standard | |
29 | lisp/ directory. There should not be any there anyway. If you have | |
30 | been adding them there, put them somewhere else, eg site-lisp. | |
31 | ||
a1ed8b05 GM |
32 | \f |
33 | * Changes in Emacs 24.2 | |
34 | ||
35 | ** If your Emacs was built from a bzr checkout, the new variable | |
36 | `emacs-bzr-version' contains information about which bzr revision was used. | |
37 | ||
38 | \f | |
39 | * Editing Changes in Emacs 24.2 | |
c25df26e RT |
40 | |
41 | ** M-x move-to-column, if called interactively with no prefix arg, now | |
42 | prompts for a column number. | |
43 | ||
0f84437b TV |
44 | ** `mouse-avoidance-banish-position' can now be used to customize |
45 | `mouse-avoidance-mode' further. | |
46 | ||
09b95ce3 MY |
47 | ** `C-M-f' and `C-M-b' will now move to the path name separator |
48 | character when doing minibuffer filename prompts. | |
49 | ||
a1ed8b05 GM |
50 | \f |
51 | * Changes in Specialized Modes and Packages in Emacs 24.2 | |
b2459884 | 52 | |
ab036cd7 SM |
53 | ** which-function-mode now applies to all applicable major modes by default. |
54 | ||
b2459884 | 55 | ** erc will look up server/channel names via auth-source and use the |
29734c21 | 56 | channel keys found, if any. |
b2459884 | 57 | |
29734c21 MN |
58 | ** The `server-auth-key' variable can be used to set a permanent |
59 | shared key for Emacs Server. | |
60 | ||
82f289a4 GM |
61 | ** Obsolete packages: |
62 | ||
63 | *** mailpost.el | |
d57de7fe CY |
64 | |
65 | *** mouse-sel.el | |
66 | ||
a1ed8b05 GM |
67 | \f |
68 | * New Modes and Packages in Emacs 24.2 | |
69 | \f | |
70 | * Incompatible Lisp Changes in Emacs 24.2 | |
b4d3bc10 CY |
71 | |
72 | +++ | |
73 | ** Docstrings starting with `*' no longer indicate user options. | |
74 | Only variables defined using `defcustom' are considered user options. | |
75 | The function `user-variable-p' is now an obsolete alias for | |
76 | `custom-variable-p'. | |
77 | ||
a1ed8b05 GM |
78 | \f |
79 | * Lisp changes in Emacs 24.2 | |
adce950d | 80 | \f |
9078ead6 EZ |
81 | * Changes in Emacs 24.2 on non-free operating systems |
82 | ||
83 | ** New configure.bat options on MS-Windows: | |
84 | ||
85 | *** --without-libxml2 omits support for libxml2, even if its presence | |
86 | is detected. | |
87 | ||
88 | \f | |
eb199145 | 89 | * Installation Changes in Emacs 24.1 |
09e18d03 | 90 | |
31fd3586 GM |
91 | ** Emacs can be compiled with Gtk+ 3.0 if you pass --with-x-toolkit=gtk3 |
92 | to configure. Note that other libraries used by Emacs, RSVG and GConf, | |
93 | also depend on Gtk+. You can disable them with --without-rsvg and | |
94 | --without-gconf. | |
338648ad | 95 | |
31fd3586 GM |
96 | ** Emacs can be compiled with GnuTLS support. |
97 | This happens by default if a suitably recent version of the library is | |
98 | found at build time. To prevent this, use the configure option | |
99 | `--without-gnutls'. See below for GnuTLS features. | |
338648ad | 100 | |
31fd3586 GM |
101 | ** Emacs can be compiled with SELinux support. |
102 | This happens by default if a suitably recent version of the library is | |
103 | found at build time. To prevent this, use the configure option | |
104 | `--without-selinux'. See below for SELinux features. | |
aded53ff | 105 | |
31fd3586 GM |
106 | ** Emacs can be compiled with ImageMagick support. |
107 | This happens by default if a suitably recent version of the library is | |
108 | found at build time. To prevent this, use the configure option | |
109 | `--without-imagemagick'. See below for ImageMagick features. | |
c1f10868 | 110 | This feature is not available for the Nextstep or MS ports. |
d9170db5 | 111 | |
043efd56 GM |
112 | ** Emacs can be compiled with libxml2 support. |
113 | This happens by default if a suitably recent version of the library is | |
114 | found at build time. To prevent this, use the configure option | |
115 | `--without-xml2'. See below for libxml2 features. | |
116 | ||
7d301ae6 CY |
117 | ** By default, the installed Info and man pages are compressed. |
118 | You can disable this by configuring --without-compress-info. | |
119 | ||
7d301ae6 | 120 | ** New configure option --with-wide-int. |
81eafe29 | 121 | With it, Emacs integers typically have 62 bits, even on 32-bit machines. |
0a768890 PE |
122 | On 32-bit hosts, this raises the limit on buffer sizes from about 512 MiB |
123 | to about 2 GiB. | |
81eafe29 | 124 | |
7d301ae6 | 125 | ** New configure options: --with-mmdf, --with-mail-unlink, --with-mailhost. |
31fd3586 GM |
126 | These provide no new functionality, they just remove the need to edit |
127 | lib-src/Makefile by hand in order to use the associated features. | |
128 | ||
7d301ae6 | 129 | ** New configure option --enable-use-lisp-union-type. |
31fd3586 GM |
130 | This is only useful for Emacs developers to debug certain types of bugs. |
131 | This is not a new feature; only the configure flag is new. | |
041d709f CY |
132 | |
133 | ** The standalone programs digest-doc and sorted-doc are removed. | |
134 | Emacs now uses Lisp commands `doc-file-to-man' and `doc-file-to-info'. | |
135 | ||
041d709f CY |
136 | ** The standalone program `fakemail' is removed. |
137 | If you need it, feedmail.el provides a superset of the functionality. | |
138 | ||
0bfd685e | 139 | \f |
eb199145 | 140 | * Startup Changes in Emacs 24.1 |
4a263588 | 141 | |
198a7a97 | 142 | ** The --unibyte, --multibyte, --no-multibyte, and --no-unibyte |
adbf62ff GM |
143 | command line arguments, and the EMACS_UNIBYTE environment variable, no |
144 | longer have any effect. (They were declared obsolete in Emacs 23.) | |
198a7a97 | 145 | |
66b7b0fe | 146 | ** New command line option `--no-site-lisp' removes site-lisp directories |
1b5e5b0c GM |
147 | from load-path. -Q now implies this. This option does not affect the |
148 | EMACSLOADPATH environment variable (and hence has no effect for | |
c8d59ba3 | 149 | Nextstep builds). |
66b7b0fe | 150 | |
0bfd685e | 151 | \f |
eb199145 | 152 | * Changes in Emacs 24.1 |
7841339b | 153 | |
a2a25d24 | 154 | ** Completion |
fdeb32ec | 155 | |
dfdb4cad CY |
156 | *** Many packages now use the `completion-at-point' command, |
157 | rather than implementing separate completion commands. | |
158 | ||
de0bde62 | 159 | *** `completion-at-point' now handles tags and semantic completion. |
dfdb4cad | 160 | |
a2a25d24 SM |
161 | *** Completion in a non-minibuffer now tries to detect the end of completion |
162 | and pops down the *Completions* buffer accordingly. | |
dfdb4cad CY |
163 | |
164 | *** New option `completion-cycle-threshold' allows completion cycling. | |
165 | ||
166 | *** New option `completion-category-overrides' for overriding the | |
2c719188 | 167 | default completion style in certain circumstances. |
dfdb4cad | 168 | |
a2a25d24 | 169 | *** New completion style `substring'. |
dfdb4cad CY |
170 | |
171 | *** Completion of buffer names uses `substring' completion by default. | |
172 | ||
173 | *** The option `widget-complete-field' has been removed. | |
620c53a6 | 174 | |
6870aaef | 175 | ** Mail changes |
dfdb4cad | 176 | |
7d301ae6 CY |
177 | *** The first time you try sending mail, Emacs asks for a mail method. |
178 | This is implemented by a new default for `send-mail-function', which | |
179 | is `sendmail-query-once'. This offers to use the smtpmail package, or | |
180 | to use the old defaults relying on external mail facilities | |
181 | (`sendmail-send-it' on GNU/Linux and other Unix-like systems, and | |
182 | `mailclient-send-it' on Windows). | |
dfdb4cad | 183 | |
7d301ae6 CY |
184 | *** Typing C-c m in the buffer made by M-x report-emacs-bug transfers |
185 | the report to your desktop's preferred mail client, if there is one. | |
186 | This uses either the "xdg-email" utility, or Mac OS's "open" command. | |
dfdb4cad | 187 | |
7d301ae6 CY |
188 | *** See Changes in Specialized Modes and Packages for SMTPmail changes |
189 | and Mail mode changes | |
3f88cd72 | 190 | |
041d709f | 191 | ** Emacs server and client changes |
dfdb4cad | 192 | |
7d301ae6 | 193 | *** New option `server-port' specifies the port for TCP Emacs servers. |
dfdb4cad | 194 | |
041d709f | 195 | *** New emacsclient argument -q/--quiet suppresses some status messages. |
dfdb4cad | 196 | |
7d301ae6 CY |
197 | *** New emacsclient argument --frame-parameters specifies the frame |
198 | parameters of any newly-created graphical frame. | |
dfdb4cad CY |
199 | |
200 | *** If emacsclient shuts down due to Emacs signaling an error, | |
201 | its exit status is 1. | |
202 | ||
041d709f CY |
203 | *** New emacsclient argument --parent-id ID. |
204 | This opens a client frame in parent X window ID, via XEmbed, similar | |
205 | to the --parent-id argument to Emacs. | |
206 | ||
d0ce9f8c MB |
207 | ** Internationalization changes |
208 | ||
d0ce9f8c | 209 | *** Emacs now supports display and editing of bidirectional text. |
7d301ae6 CY |
210 | Right-to-left (RTL) scripts, such as Arabic, Farsi, and Hebrew, are |
211 | displayed in the correct visual order as expected by users of those | |
dfdb4cad CY |
212 | scripts. The display reordering is a "full bidirectionality" class |
213 | implementation of the Unicode Bidirectional Algorithm (UBA). Buffers | |
214 | with no RTL text should look exactly the same as before. | |
f4b6ba46 | 215 | |
041d709f | 216 | **** New buffer-local variable `bidi-display-reordering'. |
7d301ae6 | 217 | To disable display reordering in a buffer, change this to nil. |
d20e1419 | 218 | |
041d709f CY |
219 | **** New buffer-local variable `bidi-paragraph-direction'. |
220 | If nil (the default), Emacs determines the base direction of each | |
dfdb4cad CY |
221 | paragraph from its text, as specified by the UBA. Setting the value |
222 | to `right-to-left' or `left-to-right' forces a base direction on each | |
223 | paragraph. | |
f4b6ba46 | 224 | |
7d301ae6 CY |
225 | Paragraphs with right-to-left base direction are displayed starting at |
226 | the right window edge. | |
f1816485 | 227 | |
dfdb4cad CY |
228 | *** Enhanced support for characters with no glyphs in available fonts, |
229 | or, on text terminals, characters that cannot be encoded by the | |
230 | terminal coding system. The new option `glyphless-char-display-control' | |
231 | specifies how to display them: as a hexadecimal code in a box, a thin | |
232 | 1-pixel space, an empty box, etc. | |
d0ce9f8c | 233 | |
7d301ae6 | 234 | *** New input methods: farsi, farsi-translit, bulgarian-alt-phonetic. |
041d709f | 235 | |
939db9ac CY |
236 | *** `nobreak-char-display' now also highlights Unicode hyphen chars |
237 | (U+2010 and U+2011). | |
238 | ||
7d301ae6 | 239 | *** New Hebrew translation of the Emacs Tutorial. |
31fd3586 GM |
240 | Type `C-u C-h t' to choose it in case your language setup doesn't |
241 | automatically select it. | |
242 | ||
7d301ae6 CY |
243 | ** An Emacs Lisp package manager is now included. |
244 | This is a convenient way to download and install additional packages, | |
245 | from a package repository at http://elpa.gnu.org. | |
dfdb4cad | 246 | |
7d301ae6 CY |
247 | *** M-x list-packages shows a list of packages, which can be |
248 | selected for installation. | |
dfdb4cad | 249 | |
7d301ae6 | 250 | *** New command `describe-package', bound to `C-h P'. |
dfdb4cad | 251 | |
7d301ae6 CY |
252 | *** By default, all installed packages are loaded automatically when |
253 | Emacs starts up. To disable this, set `package-enable-at-startup' to | |
254 | nil. To specify the packages to load, customize `package-load-list'. | |
16a91140 | 255 | |
dfdb4cad CY |
256 | ** Custom theme changes |
257 | ||
7d301ae6 CY |
258 | *** New command `M-x customize-themes', which provides a convenient |
259 | interface for enabling and disabling Custom themes. | |
dfdb4cad | 260 | |
7d301ae6 | 261 | *** New option `custom-theme-load-path' is the load path for themes. |
dfdb4cad CY |
262 | Emacs no longer looks for Custom themes in `load-path'. The default |
263 | value of `custom-theme-load-path' says to look for themes in | |
264 | `custom-theme-directory', followed by a subdirectory of | |
265 | `data-directory' named "themes/", which contains a small selection of | |
266 | built-in Custom themes. | |
267 | ||
7d301ae6 CY |
268 | *** New option `custom-safe-themes' records known-safe theme files. |
269 | If a theme is not in this list, Emacs queries before loading it, and | |
270 | offers to save the theme to `custom-safe-themes' automatically. By | |
271 | default, all themes included in Emacs are treated as safe. | |
b7d65a5f | 272 | |
7d301ae6 | 273 | ** Improved GTK integration |
dfdb4cad | 274 | |
7d301ae6 | 275 | *** GTK scroll-bars are now placed on the right by default. |
dfdb4cad CY |
276 | The function `set-scroll-bar-mode' can change this. |
277 | ||
7d301ae6 | 278 | *** GTK tool bars can have just text, just images or images and text. |
dfdb4cad CY |
279 | Customize `tool-bar-style' to choose the style. On a Gnome desktop, |
280 | the default is taken from desktop settings. | |
281 | ||
282 | *** GTK tool bars can be placed on any edge of the frame. | |
7d301ae6 CY |
283 | The frame-parameter tool-bar-position controls this. It takes the |
284 | values top, left, right or bottom. The Options => Show/Hide menu has | |
285 | entries for this. | |
dfdb4cad | 286 | |
7d301ae6 CY |
287 | *** The default colors for selected text (the `region' face) are taken |
288 | from the GTK theme when Emacs is built with GTK. | |
dfdb4cad | 289 | |
7d301ae6 CY |
290 | *** Emacs uses GTK tooltips by default if built with GTK. |
291 | You can disable this by changing `x-gtk-use-system-tooltips' to nil. | |
a5bee597 | 292 | |
dfdb4cad CY |
293 | ** Graphical interface changes |
294 | ||
295 | *** On graphical displays, the mode-line no longer ends in dashes. | |
296 | Also, the first dash (which does not indicate anything) is just | |
297 | displayed as a space. | |
298 | ||
299 | *** `menu-bar-select-buffer-function' lets you choose another operation | |
300 | instead of `switch-to-buffer' when selecting an item in the Buffers menu. | |
301 | ||
302 | *** Lucid menus and dialogs can display antialiased fonts if Emacs is | |
303 | built with Xft. These fonts can be set via X resources, for example: | |
304 | Emacs.pane.menubar.font: Courier-12 | |
305 | ||
7d301ae6 | 306 | ** Exiting changes |
dfdb4cad | 307 | |
7d301ae6 | 308 | *** Emacs now calls `kill-emacs' if it receives SIGTERM or SIGHUP, |
dfdb4cad CY |
309 | or if it receives a SIGINT signal in batch mode. |
310 | ||
7d301ae6 CY |
311 | *** `kill-emacs-hook' is now also run in batch mode. |
312 | Third-party code which adds to `kill-emacs-hook' should check if they | |
313 | do the right thing in batch mode. | |
9c524fcb | 314 | |
041d709f | 315 | ** Scrolling changes |
dfdb4cad | 316 | |
041d709f | 317 | *** New scrolling commands `scroll-up-command' and `scroll-down-command' |
0a19a6f8 | 318 | (bound to C-v/[next] and M-v/[prior]) do not signal errors at top/bottom |
7d301ae6 | 319 | of buffer at first key-press (instead they move to top/bottom of buffer) |
550f41cd | 320 | when `scroll-error-top-bottom' is non-nil. |
dfdb4cad CY |
321 | |
322 | *** New option `scroll-error-top-bottom' (see above). | |
323 | ||
041d709f | 324 | *** New scrolling commands `scroll-up-line' and `scroll-down-line' |
5a97d2da | 325 | scroll a line instead of full screen. |
dfdb4cad | 326 | |
041d709f | 327 | *** New property `scroll-command' should be set on a command's symbol to |
b2957ea8 | 328 | define it as a scroll command affected by `scroll-preserve-screen-position'. |
dfdb4cad | 329 | |
041d709f | 330 | *** If you customize `scroll-conservatively' to a value greater than 100, |
d0f69533 EZ |
331 | Emacs will never recenter point in the window when it scrolls due to |
332 | cursor motion commands or commands that move point (e.f., `M-g M-g'). | |
333 | Previously, you needed to use `most-positive-fixnum' as the value of | |
334 | `scroll-conservatively' to achieve the same effect. | |
dfdb4cad | 335 | |
7d301ae6 | 336 | *** "Aggressive" scrolling now honors the scroll margins. |
d0f69533 EZ |
337 | If you customize `scroll-up-aggressively' or |
338 | `scroll-down-aggressively' and move point off the window, Emacs now | |
339 | scrolls the window so as to avoid positioning point inside the scroll | |
340 | margin. | |
341 | ||
7d301ae6 CY |
342 | ** Basic SELinux support has been added. |
343 | This requires Emacs to be linked with libselinux at build time. | |
f1a5d776 | 344 | |
dfdb4cad CY |
345 | *** Emacs preserves the SELinux file context when backing up. |
346 | Also, the function `copy-file' has an extra optional argument for | |
347 | preserving SELinux context, and the return value of `backup-buffer' | |
348 | now includes the SELinux context. | |
f0bf7c8e | 349 | |
dfdb4cad | 350 | *** New functions `file-selinux-context' and `set-file-selinux-context' |
7d301ae6 | 351 | get and set the SELinux context of a file. |
44198b6e | 352 | |
7d301ae6 | 353 | ** Trash changes |
dfdb4cad | 354 | |
7d301ae6 CY |
355 | *** `delete-by-moving-to-trash' now only affects commands that specify |
356 | trashing. This avoids inadvertently trashing temporary files. | |
dfdb4cad | 357 | |
7d301ae6 CY |
358 | *** Calling `delete-file' or `delete-directory' with a prefix argument |
359 | now forces true deletion, regardless of `delete-by-moving-to-trash'. | |
278f6845 | 360 | |
041d709f | 361 | ** File- and directory-local variable changes |
dfdb4cad | 362 | |
041d709f CY |
363 | *** You can stop directory local vars from applying to subdirectories. |
364 | Add an element (subdirs . nil) to the alist portion of any variables | |
365 | settings to indicate that the section should not apply to | |
366 | subdirectories. | |
dfdb4cad | 367 | |
041d709f CY |
368 | *** Directory local variables can apply to some file-less buffers. |
369 | Affected modes include dired, vc-dir, and log-edit. For example, | |
370 | adding "(diff-mode . ((mode . whitespace)))" to .dir-locals.el will | |
371 | turn on `whitespace-mode' for *vc-diff* buffers. Modes should call | |
372 | `hack-dir-local-variables-non-file-buffer' to support this. | |
dfdb4cad | 373 | |
041d709f CY |
374 | *** Using "mode: MINOR-MODE" to enable a minor mode is deprecated. |
375 | Instead, use "eval: (minor-mode 1)". | |
c136e5cd | 376 | |
7b447e9b GM |
377 | *** The variable `inhibit-first-line-modes-regexps' has been renamed |
378 | to `inhibit-local-variables-regexps'. As the name suggests, it now | |
dfdb4cad CY |
379 | applies to ALL file local variables, not just -*- lines. The |
380 | associated `inhibit-first-line-modes-suffixes' has been renamed in the | |
381 | corresponding way. | |
5d907d6c | 382 | |
0a2132ba CY |
383 | ** Window changes |
384 | ||
91b65361 CY |
385 | *** The `quit-window' command now restores the last buffer displayed |
386 | in the quitted window. | |
387 | ||
0a2132ba CY |
388 | *** Resizing an Emacs frame now preserves proportional window sizes, |
389 | modulo restrictions like window minimum sizes and fixed-size windows. | |
390 | ||
391 | *** The behavior of `display-buffer' is now customizable in detail. | |
dfdb4cad | 392 | |
0a2132ba CY |
393 | **** New option `display-buffer-base-action' specifies a list of |
394 | user-determined display "actions" (functions and optional arguments | |
395 | for choosing the displaying window). | |
396 | ||
397 | This takes precedence over the default display action, which is | |
398 | specified by `display-buffer-fallback-action'. | |
399 | ||
400 | **** New option `display-buffer-alist' maps buffer name regexps to | |
401 | display actions, taking precedence over `display-buffer-base-action'. | |
402 | ||
a0c2d0ae MR |
403 | *** New option `window-combination-limit'. |
404 | The new option `window-combination-limit' allows to return the space | |
405 | obtained for resizing or creating a window more reliably to the window | |
406 | from which such space was obtained. | |
0a2132ba | 407 | |
a0c2d0ae MR |
408 | *** New option `window-combination-resize'. |
409 | The new option `window-combination-resize' allows to split a window that | |
410 | otherwise cannot be split because it's too small by stealing space from | |
411 | other windows in the same combination. Subsequent resizing or deletion | |
412 | of the window will resize all windows in the same combination as well. | |
0a2132ba | 413 | |
91b65361 CY |
414 | *** New option `frame-auto-hide-function' lets you choose between |
415 | iconifying or deleting a frame when burying a buffer in a dedicated | |
416 | frame, or quitting a window showing a buffer in a frame of its own. | |
417 | ||
0a2132ba | 418 | *** New commands `maximize-window' and `minimize-window'. |
53964682 | 419 | These maximize and minimize the size of a window within its frame. |
0a2132ba | 420 | |
0a2132ba CY |
421 | *** New commands `switch-to-prev-buffer' and `switch-to-next-buffer'. |
422 | These functions allow to navigate through the live buffers that have | |
423 | been shown in a specific window. | |
424 | ||
7d301ae6 | 425 | ** Minibuffer changes |
dfdb4cad | 426 | |
7d301ae6 | 427 | *** The inactive minibuffer has its own major mode `minibuffer-inactive-mode'. |
104dc9c6 GM |
428 | This is handy for minibuffer-only frames, and is also used for the feature |
429 | where mouse-1 pops up *Messages*"', which can now easily be changed. | |
041d709f | 430 | |
7d301ae6 | 431 | *** Minibuffers set `truncate-lines' to nil. |
f66eca26 | 432 | If you want to change the value to something else, you could use |
7d301ae6 CY |
433 | for example `minibuffer-setup-hook'. |
434 | ||
7d301ae6 CY |
435 | ** `auto-mode-case-fold' is now enabled by default. |
436 | ||
7d301ae6 | 437 | ** `backup-by-copying-when-mismatch' now defaults to t. |
f66eca26 | 438 | |
dfdb4cad CY |
439 | ** New basic faces `error', `warning', `success'. |
440 | These are used to highlight text indicating failure, caution or | |
441 | successful operation. | |
442 | ||
443 | ** New option `list-colors-sort' defines the color sort order | |
444 | for `list-colors-display'. | |
445 | ||
446 | ** The variable `focus-follows-mouse' now always defaults to nil. | |
447 | ||
0bfd685e | 448 | \f |
eb199145 | 449 | * Editing Changes in Emacs 24.1 |
b350bdf2 | 450 | |
892777ba | 451 | ** Search changes |
dfdb4cad CY |
452 | |
453 | *** C-y in Isearch is now bound to `isearch-yank-kill', instead of | |
454 | `isearch-yank-line'. | |
455 | ||
456 | *** M-y in Isearch is now bound to `isearch-yank-pop', instead of | |
457 | `isearch-yank-kill'. | |
458 | ||
459 | *** M-s C-e in Isearch is now bound to `isearch-yank-line'. | |
460 | ||
b2b0776e | 461 | ** New commands `count-words-region' and `count-words'. |
dfdb4cad | 462 | |
10607bea CY |
463 | *** M-= is bound to `count-words-region', not `count-lines-region'. |
464 | The `count-words-region' command, when called interactively, reports | |
465 | the number of lines, words, and characters in the region. It is a | |
466 | superset of the old `count-lines-region', which is now an obsolete | |
467 | alias for it. | |
ea4f7750 | 468 | |
ec9da840 | 469 | ** The command `just-one-space' (M-SPC), if given a negative argument, |
1c708c1a CY |
470 | also deletes newlines around point. |
471 | ||
b9229673 | 472 | ** Deletion changes |
dfdb4cad | 473 | |
b9229673 | 474 | *** New option `delete-active-region'. |
ddb54206 | 475 | If non-nil, [delete] and DEL delete the region if it is active and no |
dfdb4cad | 476 | prefix argument is given. If set to `kill', those commands kill |
ddb54206 | 477 | instead. |
dfdb4cad | 478 | |
59ee0542 | 479 | *** New command `delete-forward-char', bound to [delete]. |
42d9cffa CY |
480 | This is meant for interactive use, and obeys `delete-active-region'. |
481 | The command `delete-char' does not obey `delete-active-region'. | |
dfdb4cad | 482 | |
b9229673 CY |
483 | *** `delete-backward-char' is now a Lisp function. |
484 | Apart from obeying `delete-active-region', its behavior is unchanged. | |
7d301ae6 CY |
485 | However, the byte compiler now warns if it is called from Lisp; Lisp |
486 | callers should use delete-char with a negative argument instead. | |
dfdb4cad | 487 | |
b9229673 CY |
488 | *** The option `mouse-region-delete-keys' has been deleted. |
489 | ||
f9d71b42 CY |
490 | ** Selection changes. |
491 | ||
7d301ae6 CY |
492 | The default handling of clipboard and primary selections has been |
493 | changed to conform with modern X applications. In short, most | |
494 | commands for killing and yanking text now use the clipboard, while | |
495 | mouse commands use the primary selection. | |
b1ab31ae CY |
496 | |
497 | In the following, we provide a list of these changes, followed by a | |
498 | list of steps to get the old behavior back if you prefer that. | |
499 | ||
b1ab31ae CY |
500 | *** `select-active-regions' now defaults to t. |
501 | Merely selecting text (e.g. with drag-mouse-1) no longer puts it in | |
963578d3 | 502 | the kill ring. The selected text is put in the primary selection, if |
b1ab31ae CY |
503 | the system possesses a separate primary selection facility (e.g. X). |
504 | ||
505 | **** `select-active-regions' also accepts a new value, `only'. | |
506 | This means to only set the primary selection for temporarily active | |
507 | regions (usually made by mouse-dragging or shift-selection); | |
508 | "ordinary" active regions, such as those made with C-SPC followed by | |
509 | point motion, do not alter the primary selection. | |
510 | ||
963578d3 CY |
511 | **** `mouse-drag-copy-region' now defaults to nil. |
512 | ||
b1ab31ae CY |
513 | *** mouse-2 is now bound to `mouse-yank-primary'. |
514 | This pastes from the primary selection, ignoring the kill-ring. | |
515 | Previously, mouse-2 was bound to `mouse-yank-at-click'. | |
dfdb4cad | 516 | |
b1ab31ae | 517 | *** `x-select-enable-clipboard' now defaults to t on all platforms. |
dfdb4cad | 518 | |
b1ab31ae CY |
519 | *** `x-select-enable-primary' now defaults to nil. |
520 | Thus, commands that kill text or copy it to the kill-ring (such as | |
521 | M-w, C-w, and C-k) also use the clipboard---not the primary selection. | |
522 | ||
523 | **** The "Copy", "Cut", and "Paste" items in the "Edit" menu are now | |
dfdb4cad | 524 | exactly equivalent to M-w, C-w, and C-y respectively. |
b1ab31ae CY |
525 | |
526 | **** Note that on MS-Windows, `x-select-enable-clipboard' was already | |
527 | non-nil by default, as Windows does not support the primary selection | |
528 | between applications. | |
529 | ||
530 | *** To return to the previous behavior, do the following: | |
dfdb4cad | 531 | |
104c2fe9 | 532 | **** Change `select-active-regions' to nil. |
b1ab31ae CY |
533 | **** Change `mouse-drag-copy-region' to t. |
534 | **** Change `x-select-enable-primary' to t (on X only). | |
535 | **** Change `x-select-enable-clipboard' to nil. | |
536 | **** Bind `mouse-yank-at-click' to mouse-2. | |
f9d71b42 | 537 | |
084e6df3 | 538 | *** Support for X cut buffers has been removed. |
dfdb4cad | 539 | |
3fd50d5c CY |
540 | *** X clipboard managers are now supported. |
541 | To inhibit this, change `x-select-enable-clipboard-manager' to nil. | |
4b80f674 | 542 | |
dfdb4cad CY |
543 | ** New command `C-x r N' (`rectangle-number-lines') numbers the lines |
544 | in the current rectangle. With a prefix argument, this prompts for a | |
545 | number to count from and for a format string. | |
99f053cf | 546 | |
7d301ae6 | 547 | ** `redisplay-dont-pause' now defaults to t. |
6bf7006f EZ |
548 | This makes Emacs feel more responsive to editing commands that arrive |
549 | at high rate, e.g. if you lean on some key, because stopping redisplay | |
550 | in the middle (when this variable is nil) forces more expensive | |
551 | updates later on, and Emacs appears to be unable to keep up. | |
552 | ||
e70b5064 CY |
553 | ** The behavior of <TAB> for active regions in Text mode has changed. |
554 | In Text and related modes, typing <TAB> (`indent-for-tab-command') | |
555 | when the region is active causes Emacs to indent all the lines in the | |
556 | region, aligning them with the line previous to the first line in the | |
557 | region (or with the left margin if there is no previous line). | |
558 | ||
dfdb4cad CY |
559 | ** When `occur' is called with a prefix argument, matching strings are |
560 | collected into the `*Occur*' buffer without line numbers. If there | |
561 | are parenthesized subexpressions in the specified regexp, `occur' | |
562 | reads replacement text that may contain \\& and \\N whose convention | |
563 | follows `replace-match'. | |
564 | ||
9bae34bf | 565 | \f |
eb199145 | 566 | * Changes in Specialized Modes and Packages in Emacs 24.1 |
efeb796b | 567 | |
041d709f | 568 | ** Archive Mode has basic support for browsing and updating 7z archives. |
d76674bb | 569 | |
b7c3692a | 570 | ** BibTeX mode |
dfdb4cad | 571 | |
2de69e00 | 572 | *** BibTeX mode now supports biblatex. |
7d301ae6 CY |
573 | Use the variable `bibtex-dialect' to select different BibTeX dialects. |
574 | `bibtex-entry-field-alist' is now an obsolete alias for | |
575 | `bibtex-BibTeX-entry-alist'. | |
576 | ||
dfdb4cad CY |
577 | *** New command `bibtex-search-entries', bound to C-c C-a. |
578 | ||
b7c3692a | 579 | *** New `bibtex-entry-format' option `sort-fields', disabled by default. |
dfdb4cad | 580 | |
022fe7ce RW |
581 | *** New variable `bibtex-search-entry-globally'. |
582 | ||
7d301ae6 | 583 | ** Browse-url |
dfdb4cad | 584 | |
7d301ae6 | 585 | *** New option `browse-url-mailto-function' specifies how to handle "mailto:"s. |
dfdb4cad | 586 | |
7d301ae6 CY |
587 | *** The default browser used by the package is now the "xdg-open" program, |
588 | on platforms that support it. This calls your desktop's preferred browser. | |
589 | ||
cf16af42 GM |
590 | ** Calendar, Diary, and Appt |
591 | ||
7d301ae6 | 592 | *** Diary entries can contain non-printing "comments". |
548d0a63 GM |
593 | See the variable `diary-comment-start'. |
594 | ||
5006e634 GM |
595 | *** Appointments can specify their individual warning times. |
596 | See the variable `appt-warning-time-regexp'. | |
597 | ||
0a2bb1a9 GM |
598 | *** The function specified by `appt-disp-window-function' may be passed |
599 | lists of arguments if multiple appointments are due at similar times. | |
600 | If you are using a custom function for this, you should update it. | |
601 | ||
7454f200 GM |
602 | *** New function `diary-hebrew-birthday'. |
603 | ||
e565dd37 GM |
604 | *** Elements of `calendar-day-abbrev-array' and `calendar-month-abbrev-array' |
605 | may no longer be nil, but must all be strings. | |
606 | ||
7d301ae6 CY |
607 | *** The obsolete (since Emacs 22.1) method of enabling the appt |
608 | package by adding `appt-make-list' to `diary-hook' has been removed. | |
609 | Use `appt-activate' instead. | |
cf16af42 | 610 | |
cf16af42 GM |
611 | *** Some appt variables (obsolete since Emacs 22.1) have been removed: |
612 | appt-issue-message (use the function appt-activate) | |
613 | appt-visible/appt-msg-window (use the variable appt-display-format) | |
614 | ||
cf16af42 GM |
615 | *** Some diary function aliases (obsolete since Emacs 22.1) have been removed: |
616 | view-diary-entries, list-diary-entries, show-all-diary-entries | |
617 | ||
551b046f | 618 | ** CC Mode |
dfdb4cad | 619 | |
551b046f | 620 | *** New feature to "guess" the style in an existing buffer. |
7d301ae6 | 621 | The main entry point is M-x c-guess. |
041d709f | 622 | |
551b046f AM |
623 | *** Java Mode now supports Java 5.0 (Tiger) and 6 (Mustang). |
624 | ||
dfdb4cad | 625 | *** `c-beginning-of-defun' and `c-end-of-defun' now respect nested scopes. |
551b046f AM |
626 | Thus C-M-a will, by default, go to the beginning of the immediate function, |
627 | not the top level. | |
628 | ||
dfdb4cad | 629 | *** "Macros with semicolons" can be registered for correct indentation. |
551b046f AM |
630 | Where such a macro ends a line (no semicolon) the next statement is no longer |
631 | parsed as a statement continuation. | |
632 | ||
dfdb4cad | 633 | ** Comint and modes derived from it use the standard completion code. |
041d709f CY |
634 | |
635 | ** Compilation mode | |
dfdb4cad | 636 | |
7d301ae6 | 637 | *** Compilation mode can be used without Font Lock mode. |
041d709f CY |
638 | `compilation-parse-errors-function' is now obsolete. |
639 | ||
dfdb4cad | 640 | *** New variable `compilation-filter-start', which is bound while |
7d301ae6 CY |
641 | `compilation-filter-hook' runs. It records the start position of the |
642 | text inserted by `compilation-filter'. | |
041d709f | 643 | |
47a6a35f GM |
644 | *** `compilation-error-screen-columns' and `compilation-first-column' |
645 | are obeyed in the editing buffer. So programming language modes can | |
7d301ae6 CY |
646 | set them, whereas previously only the value in the *Compilation* |
647 | buffer was used. | |
1dce7193 | 648 | |
52834b6b CY |
649 | ** Customize |
650 | ||
651 | *** Customize buffers now contain a search field. | |
652 | The search is performed using `customize-apropos'. | |
7d301ae6 | 653 | To turn off the search field, set `custom-search-field' to nil. |
52834b6b CY |
654 | |
655 | *** Custom options now start out hidden if at their default values. | |
656 | Use the arrow to the left of the option name to toggle visibility. | |
657 | ||
658 | *** custom-buffer-sort-alphabetically now defaults to t. | |
659 | ||
660 | *** The color widget now has a "Choose" button, which allows you to | |
7d301ae6 | 661 | choose a color via `list-colors-display'. |
52834b6b | 662 | |
041d709f CY |
663 | ** D-Bus |
664 | ||
5da3be7f GM |
665 | *** It is now possible to access buses other than the default system |
666 | or session bus. | |
041d709f | 667 | |
7d301ae6 | 668 | *** The `dbus-register-method' and `dbus-register-property' functions |
5da3be7f | 669 | optionally do not register names. |
041d709f | 670 | |
7d301ae6 | 671 | *** The new function `dbus-register-service' registers a known service |
dfdb4cad | 672 | name on a D-Bus without also registering a property or a method. |
041d709f | 673 | |
f5d6548a | 674 | ** Dired-x |
425a25f1 | 675 | |
7d301ae6 CY |
676 | *** C-x C-j (`dired-jump') and C-x 4 C-j (`dired-jump-other-window'), |
677 | if called with a prefix argument, read a file name from the minibuffer | |
678 | instead of using the current buffer. | |
f5d6548a | 679 | |
7d301ae6 | 680 | *** The "dired local variables" feature of Dired-x is obsolete. |
817b48a7 | 681 | The standard directory local variables feature replaces it. |
8117868f | 682 | |
041d709f | 683 | ** ERC changes |
7492acc9 | 684 | |
c4077254 GM |
685 | *** New options `erc-autojoin-timing' and `erc-autojoin-delay', |
686 | controlling attempts to autojoin a channel. | |
041d709f CY |
687 | |
688 | *** New variable `erc-coding-system-precedence': If we use `undecided' | |
689 | as the server coding system, this variable will then be consulted. | |
690 | The default is to decode strings that can be decoded as utf-8 as | |
691 | utf-8, and do the normal `undecided' decoding for the rest. | |
7492acc9 | 692 | |
041d709f | 693 | ** Eshell changes |
7492acc9 | 694 | |
05f77e38 GM |
695 | *** The default value of `eshell-directory-name' has changed |
696 | to be an "eshell" directory in `user-emacs-directory'. | |
697 | The old "~/.eshell/" directory is still used if it exists, though. | |
041d709f CY |
698 | |
699 | ** gdb-mi | |
dfdb4cad CY |
700 | |
701 | *** The M-x gdb command now uses the GDB Machine Interface protocol. | |
05f77e38 GM |
702 | It now supports multithread non-stop debugging and simultaneous |
703 | debugging of several threads. | |
7492acc9 | 704 | |
18af70d0 CY |
705 | ** Image mode |
706 | ||
05f77e38 GM |
707 | *** RET (`image-toggle-animation') toggles animation, if applicable. |
708 | Animation plays once, unless the option `image-animate-loop' is non-nil. | |
18af70d0 | 709 | |
041d709f | 710 | ** Info |
723ee192 | 711 | |
7d301ae6 | 712 | *** New command M-x info-display-manual displays a named Info manual. |
2ebc3b94 GM |
713 | If that manual is already visited in some Info buffer, it displays |
714 | that buffer. (This is handy if you have many manuals in many *info* | |
715 | buffers, and don't remember the name of the buffer visiting the manual | |
716 | you want to consult.) Otherwise, it loads and displays the manual. | |
691cf4a0 | 717 | |
24ea72d3 EZ |
718 | *** `e' is now bound to `end-of-buffer' rather than to `Info-edit'. |
719 | This is for compatibility with the stand-alone Info reader program, | |
720 | and also because `Info-edit' is a rarely used command that is disabled | |
721 | by default. | |
722 | ||
7d301ae6 | 723 | ** Mail mode changes (not Message mode) |
dfdb4cad | 724 | |
7d301ae6 | 725 | *** New command M-x mail-add-attachment for adding MIME attachments |
7d301ae6 | 726 | |
dfdb4cad CY |
727 | *** The command M-x mail-attach-file was renamed to M-x mail-insert-file. |
728 | (Its name is misleading, since it has nothing to do with MIME | |
729 | attachments.) The old name is now an obsolete alias to the new name. | |
730 | ||
06b08b88 | 731 | ** MH-E has been upgraded to MH-E version 8.3.1. |
041d709f | 732 | See MH-E-NEWS for details. |
37221432 | 733 | |
041d709f | 734 | ** Modula-2 mode provides auto-indentation. |
37221432 | 735 | |
041d709f | 736 | ** mpc.el: Can use pseudo tags of the form tag1|tag2 as a union of two tags. |
3c3d4f5b | 737 | |
5d1ac394 | 738 | ** nXML mode no longer binds C-RET to `nxml-complete'. |
dfdb4cad CY |
739 | Completion is now performed via `completion-at-point', bound to C-M-i |
740 | or M-TAB. If `nxml-bind-meta-tab-to-complete-flag' is non-nil (the | |
741 | default), this performs tag completion. | |
5d1ac394 | 742 | |
041d709f | 743 | ** Prolog mode has been completely revamped, with lots of additional |
7d301ae6 CY |
744 | functionality such as more intelligent indentation, electricity, |
745 | support for more variants, including Mercury, and a lot more. | |
041d709f CY |
746 | |
747 | ** Rmail | |
748 | ||
749 | *** The command `rmail-epa-decrypt' decrypts OpenPGP data | |
750 | in the Rmail incoming message. | |
751 | ||
50419064 GM |
752 | *** The variable `rmail-message-filter' no longer has any effect. |
753 | This change was made in Emacs 23.1 but was not advertised at the time. | |
754 | Try using `rmail-show-message-hook' instead. | |
755 | ||
717a1362 | 756 | ** Shell mode |
dfdb4cad CY |
757 | |
758 | *** M-x shell prompts for the shell path name if the default directory | |
759 | is a remote file name and neither the environment variable $ESHELL nor | |
760 | the variable `explicit-shell-file-name' is set. | |
761 | ||
762 | *** TAB is now bound to the standard `completion-at-point' command, | |
763 | which now implements the pcomplete rules for shell command completion. | |
717a1362 | 764 | |
7d301ae6 CY |
765 | ** SMTPmail |
766 | ||
dfdb4cad | 767 | *** SMTPmail now uses encrypted connections (via STARTTLS) by default |
7d301ae6 CY |
768 | if the mail server supports them. This uses either built-in GnuTLS |
769 | support, or the starttls.el library. Customize `smtpmail-stream-type' | |
770 | to change this. | |
771 | ||
7d301ae6 CY |
772 | *** The variable `smtpmail-auth-credentials' has been removed. |
773 | By default, the information is now stored in the file ~/.authinfo. | |
dfdb4cad CY |
774 | This was the default value of smtpmail-auth-credentials. If you had |
775 | customized smtpmail-auth-credentials to a list of user names and | |
776 | passwords, those settings are not used. During your first connection | |
777 | to the smtp server, Emacs will prompt for the user name and password, | |
778 | and offer to save them to ~/.authinfo. Or you can manually copy the | |
779 | credentials to ~/.authinfo. For example, if you had | |
7d301ae6 CY |
780 | |
781 | (setq smtpmail-auth-credentials | |
782 | '(("mail.example.org" 25 "jim" "s!cret"))) | |
783 | ||
784 | then the equivalent line in ~/.authinfo would be | |
785 | ||
786 | machine mail.example.org port 25 login jim password s!cret | |
787 | ||
788 | See the auth-source manual for more information, e.g. on encrypting | |
789 | the credentials file. | |
790 | ||
7d301ae6 | 791 | *** The variable `smtpmail-starttls-credentials' has been removed. |
dfdb4cad | 792 | If you had that set, you need to put |
7d301ae6 CY |
793 | |
794 | machine smtp.whatever.foo port 25 key "~/.my_smtp_tls.key" cert "~/.my_smtp_tls.cert" | |
795 | ||
796 | in your ~/.authinfo file instead. | |
797 | ||
34e8a2da | 798 | ** SQL mode |
041d709f | 799 | |
34e8a2da GM |
800 | *** New options `sql-port', `sql-connection-alist', `sql-send-terminator', |
801 | and `sql-oracle-scan-on'. | |
041d709f | 802 | |
dfdb4cad | 803 | *** New options controlling prompting for login parameters. |
34e8a2da GM |
804 | Each supported product has a custom variable `sql-*-login-params', |
805 | which is a list of the parameters to be prompted for before a | |
806 | connection is established. | |
041d709f CY |
807 | |
808 | *** The command `sql-product-interactive' now takes a prefix argument, | |
34e8a2da | 809 | which causes it to prompt for an SQL product. |
041d709f | 810 | |
34e8a2da | 811 | *** Product-specific SQL interactive commands now take prefix arguments. |
041d709f CY |
812 | These commands (`sql-sqlite', `sql-postgres', `sql-mysql', etc.), |
813 | given a prefix argument, prompt for a name for the SQL interactive | |
814 | buffer. This reduces the need for calling `sql-rename-buffer'. | |
815 | ||
816 | *** SQL interactive modes suppress command continuation prompts, and | |
817 | replace tabs with spaces. The first change impacts multiple line SQL | |
818 | statements entered with C-j between each line, statements yanked into | |
819 | the buffer and statements sent with `sql-send-*' functions. The | |
34e8a2da GM |
820 | second prevents the MySQL and Postgres interpreters from listing |
821 | object name completions when sent text via `sql-send-*' functions. | |
041d709f CY |
822 | |
823 | *** New command `sql-connect' starts a predefined SQLi session, | |
824 | using the login parameters from `sql-connection-alist'. | |
825 | ||
826 | *** New "Save Connection" menu item in SQLi buffers. | |
827 | This gathers the login params specified for the SQLi session, if it | |
828 | was not started by a connection, and saves them as a new connection. | |
829 | ||
34e8a2da GM |
830 | *** New commands for listing database objects and details: |
831 | sql-list-all and sql-list-table. | |
041d709f CY |
832 | |
833 | *** An API for manipulating SQL product definitions has been added. | |
834 | ||
835 | ** TeX modes | |
836 | ||
837 | *** latex-electric-env-pair-mode keeps \begin..\end matched on the fly. | |
412b9ee5 | 838 | |
459bba37 | 839 | ** Tramp |
dfdb4cad | 840 | |
7d301ae6 | 841 | *** New inline access method "ksu" (kerberized su). |
dfdb4cad | 842 | |
459bba37 | 843 | *** The following access methods are discontinued: "ssh1_old", |
ea843702 | 844 | "ssh2_old", "scp1_old", "scp2_old", "imap", "imaps" and "fish". |
dfdb4cad | 845 | |
b011fbfe GM |
846 | *** The user option `remote-file-name-inhibit-cache' controls whether |
847 | remote file attributes are cached for better performance. | |
dfdb4cad | 848 | |
58f74fe4 MA |
849 | *** The option `ange-ftp-binary-file-name-regexp' has changed its |
850 | default value to "". | |
dfdb4cad | 851 | |
7d301ae6 CY |
852 | *** Handlers for `file-selinux-context' and `set-file-selinux-context' |
853 | for remote machines which support SELinux. | |
58f74fe4 | 854 | |
dfdb4cad | 855 | ** New function `url-queue-retrieve', which behaves like url-retrieve, |
a48ec60c GM |
856 | but with limits (`url-queue-parallel-processes', `url-queue-timeout') on |
857 | the degree of parallelism. | |
177549d0 | 858 | |
0c32ce32 CY |
859 | ** VC and related modes |
860 | ||
861 | *** Support for pulling on distributed version control systems. | |
7d301ae6 CY |
862 | The command C-x v + (`vc-pull') runs a "pull" operation, if it is |
863 | supported (currently with Bzr, Git, and Mercurial), to update the | |
864 | current branch and working tree. A prefix argument means to prompt | |
865 | the user for specifics, e.g. a pull location. | |
0c32ce32 | 866 | |
dab3703d | 867 | *** `vc-update' is now an alias for `vc-pull'. |
0c32ce32 CY |
868 | |
869 | *** Support for merging on distributed version control systems. | |
7d301ae6 CY |
870 | The command C-x v m (`vc-merge') now runs a "merge" operation, if it |
871 | is supported (currently with Bzr, Git, and Mercurial), to merge | |
872 | changes from another branch into the current one. It prompts for | |
873 | specifics, e.g. a merge source. | |
0c32ce32 | 874 | |
2afef60a | 875 | *** New option `vc-revert-show-diff' controls whether `vc-revert' |
bbe43420 | 876 | shows a diff while querying the user. It defaults to t. |
2afef60a | 877 | |
d4eb88c7 CY |
878 | *** Log entries in some Log View buffers can be toggled to display a |
879 | longer description by typing RET (log-view-toggle-entry-display). | |
dab3703d GM |
880 | This is currently supported for Bzr, Git, and Mercurial (to support |
881 | another backend, define a `log-view-expanded-log-entry-function'). | |
7d301ae6 | 882 | In the Log View buffers made by C-x v L (`vc-print-root-log'), you can |
d4eb88c7 CY |
883 | use this to display the full log entry for the revision at point. |
884 | ||
1c6c854e CS |
885 | *** New command `vc-ediff' allows visual comparison of two revisions |
886 | of a file similar to `vc-diff', but using ediff backend. | |
887 | ||
86c60681 CY |
888 | *** The option `vc-initial-comment' was removed in Emacs 23.2, but |
889 | this was not advertised at the time. | |
890 | ||
86c60681 CY |
891 | *** `vc-toggle-read-only' is an obsolete alias for `toggle-read-only'. |
892 | Since Emacs 23, it has done the same thing as `toggle-read-only', but | |
80c6d77f GM |
893 | this was not advertised at the time. |
894 | ||
041d709f CY |
895 | ** Obsolete modes |
896 | ||
23d70505 GM |
897 | *** abbrevlist.el |
898 | ||
f8ca9162 | 899 | *** erc-hecomplete.el (use erc-pcomplete.el instead) |
23d70505 GM |
900 | |
901 | *** partial-completion-mode (complete.el) is obsolete. | |
041d709f CY |
902 | You can get a comparable behavior with: |
903 | (setq completion-styles '(partial-completion initials)) | |
904 | (setq completion-pcm-complete-word-inserts-delimiters t) | |
905 | ||
23d70505 GM |
906 | *** pc-mode.el is obsolete (CUA mode is much more comprehensive). |
907 | ||
2c719188 | 908 | *** pgg is obsolete (use EasyPG instead). |
041d709f CY |
909 | |
910 | *** sregex.el is obsolete, since rx.el is a strict superset. | |
911 | ||
23d70505 GM |
912 | *** s-region.el and pc-select.el are obsolete. |
913 | They are superseded by shift-select-mode, enabled by default since 23.1. | |
914 | ||
2c719188 | 915 | *** vc-mcvs.el is obsolete (for lack of a maintainer). |
ca5eed61 | 916 | |
0fe719e6 GM |
917 | ** Miscellaneous |
918 | ||
05f77e38 | 919 | *** The Landmark game is now invoked with `landmark', not `lm'. |
c6ad2a4e | 920 | Its functions and variables have been similarly renamed. |
05f77e38 | 921 | |
dfdb4cad | 922 | *** In `ido-file-completion-map', C-v is no longer bound to `ido-toggle-vc'. |
05f77e38 GM |
923 | (This interfered with cua-mode.) |
924 | ||
9f678528 GM |
925 | *** f90.el has some support for Fortran 2008 syntax. |
926 | ||
0fe719e6 GM |
927 | *** `copyright-fix-years' can optionally convert consecutive years to ranges. |
928 | ||
5b3e6db8 GM |
929 | *** New command `nato-region' converts text to NATO phonetic alphabet. |
930 | ||
eb199145 GM |
931 | \f |
932 | * New Modes and Packages in Emacs 24.1 | |
d445b3f8 | 933 | |
60e56523 | 934 | ** Occur Edit mode applies edits made in *Occur* buffers to the |
8c0f49f0 | 935 | original buffers. It is bound to "e" in Occur mode. |
60e56523 | 936 | |
a075a2c5 GM |
937 | ** New global minor mode electric-pair-mode. |
938 | When enabled, typing an open parenthesis automatically inserts the | |
939 | matching closing one. | |
940 | ||
941 | ** New global minor mode electric-indent-mode. | |
942 | When enabled, typing certain characters triggers reindentation. | |
cd3308f3 GM |
943 | Major modes wishing to use this can set electric-indent-chars or |
944 | electric-indent-functions. | |
a075a2c5 GM |
945 | |
946 | ** New global minor mode electric-layout-mode. | |
947 | When enabled, typing certain characters automatically inserts newlines. | |
cd3308f3 | 948 | Major modes wishing to use this can set electric-layout-rules. |
3b843809 | 949 | |
a83ec3c9 CY |
950 | ** tabulated-list.el provides a generic major mode for tabulated data, |
951 | from which other modes can be derived. | |
952 | ||
d02c9bcd SM |
953 | ** pcase.el provides the ML-style pattern matching macro `pcase'. |
954 | ||
7725ebb7 MA |
955 | ** secrets.el is an implementation of the Secret Service API, an |
956 | interface to password managers like GNOME Keyring or KDE Wallet. The | |
065f2743 MA |
957 | Secret Service API requires D-Bus for communication. The command |
958 | `secrets-show-secrets' offers a buffer with a visualization of the | |
959 | secrets. | |
7725ebb7 | 960 | |
f9e78150 MA |
961 | ** notifications.el provides an implementation of the Desktop |
962 | Notifications API. It requires D-Bus for communication. | |
963 | ||
12fe5bcc MA |
964 | ** soap-client.el supports access to SOAP web services from Emacs. |
965 | soap-inspect.el is an interactive inspector for SOAP WSDL structures. | |
966 | ||
ff1796f3 | 967 | ** New generic mode, xmodmap-generic-mode, for xmodmap files. |
ad7d6ecb | 968 | |
53bbe3ad | 969 | ** New emacs-lock.el package. |
7d301ae6 CY |
970 | The previous version has been moved to obsolete/old-emacs-lock.el. |
971 | Now, there is a proper minor mode `emacs-lock-mode'. Protection | |
972 | against exiting Emacs and killing the buffer can be set separately. | |
973 | The mechanism for automatically turning off protection for buffers | |
974 | with dead inferior processes has been generalized. | |
53bbe3ad | 975 | |
eb199145 GM |
976 | \f |
977 | * Incompatible Lisp Changes in Emacs 24.1 | |
6dfcbe31 | 978 | |
7d301ae6 CY |
979 | ** Passing a nil argument to a minor mode function call now ENABLES |
980 | the minor mode unconditionally. This is so that you can write e.g. | |
981 | ||
dfdb4cad | 982 | (add-hook 'text-mode-hook 'foo-mode) |
7d301ae6 | 983 | |
dfdb4cad CY |
984 | to enable foo-mode in Text mode buffers, removing the need for |
985 | `turn-on-foo-mode' style functions. This affects all mode commands | |
986 | defined by `define-minor-mode'. If called interactively, the mode | |
987 | command still toggles the minor mode. | |
7d301ae6 | 988 | |
d268b4fe CY |
989 | ** The return value of `backup-buffer' has changed. |
990 | It is now a list of three elements, where the second element is a list | |
991 | describing the original file's SELinux context. If Emacs or the | |
f003f294 | 992 | system lacks SELinux support, the context list is (nil nil nil nil). |
7d301ae6 | 993 | See "Basic SELinux support" above, under "Changes in Emacs 24.1". |
d268b4fe | 994 | |
dfdb4cad CY |
995 | ** `char-direction-table' and the `char-direction' function were deleted. |
996 | They were buggy and inferior to the new support of bidirectional | |
997 | editing introduced in Emacs 24. If you need the bidirectional | |
998 | properties of a character, use `get-char-code-property' with the last | |
999 | argument `bidi-class'. | |
fa6996bc | 1000 | |
470d996d TV |
1001 | ** `copy-directory' now copies the source directory as a subdirectory |
1002 | of the target directory, if the latter is an existing directory. The | |
1003 | new optional arg COPY-CONTENTS, if non-nil, makes the function copy | |
1004 | the contents directly into a pre-existing target directory. | |
1005 | ||
9173a8fb CY |
1006 | ** For mouse click input events in the text area, the Y pixel |
1007 | coordinate in the POSITION list now counts from the top of the text | |
1008 | area, excluding any header line. Previously, it counted from the top | |
1009 | of the header line. | |
1010 | ||
7d301ae6 CY |
1011 | ** Support for "old-style" backquotes, obsolete for 10+ years, has |
1012 | been further reduced. Now a backquote not followed by a space is | |
1013 | always treated as a "new-style" backquote. Please remove all | |
1014 | "old-style" backquotes from your code. If your code uses backquotes | |
1015 | as documented in the Elisp manual, and compiles without warning, then | |
1016 | you have nothing to do in this regard. Code not following the | |
1017 | appropriate conventions may fail to compile. | |
50ab02c5 CY |
1018 | |
1019 | The most common cause of trouble seems to be an old-style backquote | |
1020 | followed by a newline. Another cause of trouble is vector notation | |
1021 | for key sequence notation: instead of [(control ,)] and [(control ')], | |
1022 | you should write [(control ?,)] and [(control ?')], which will work in | |
7d301ae6 | 1023 | older Emacsen too. |
288cf4e9 | 1024 | |
520f2425 GM |
1025 | ** The macro `eval-at-startup' was removed in Emacs 23.2, but this |
1026 | was not advertised at the time. The function `custom-initialize-delay' | |
1027 | replaced all known uses. | |
1028 | ||
7d301ae6 CY |
1029 | ** `view-buffer' now treats special mode-class in the same way that |
1030 | `view-file' has since Emacs 22 (i.e. it won't enable View mode if the | |
1031 | major mode is special). | |
fd5c9dfa | 1032 | |
7d301ae6 | 1033 | ** Menu and tool bar changes |
6431f2e6 | 1034 | |
7d301ae6 | 1035 | *** During startup, Emacs no longer adds entries for `menu-bar-lines' |
0a19a6f8 JB |
1036 | and `tool-bar-lines' to `default-frame-alist' and `initial-frame-alist'. |
1037 | With these alist entries omitted, `make-frame' checks the value of the | |
1038 | variable `menu-bar-mode'/`tool-bar-mode' to determine whether to create | |
1039 | a menu-bar or tool-bar, respectively. If the alist entries are added, | |
1040 | they override the value of `menu-bar-mode'/`tool-bar-mode'. | |
6431f2e6 | 1041 | |
7d301ae6 CY |
1042 | *** The menu bar bindings's caches are not used any more. |
1043 | Use (where-is-internal <def> nil t) instead. | |
1044 | ||
fe0aa820 | 1045 | ** Regions created by mouse dragging are now normal active regions, |
dfdb4cad | 1046 | similar to those created by shift-selection (see Selection changes |
7d301ae6 CY |
1047 | above). In previous Emacs versions, these regions were delineated by |
1048 | `mouse-drag-overlay'; that variable has been removed. | |
d6d8ee7a | 1049 | |
7d301ae6 CY |
1050 | ** The fourth argument of `filter-buffer-substring' has been removed. |
1051 | If you want to remove text properties from the final result, simply | |
1052 | pass the result through substring-no-properties. | |
34c99998 | 1053 | |
4583e796 GM |
1054 | ** cl.el no longer provides `cl-19'. |
1055 | ||
7d301ae6 CY |
1056 | ** The following obsolete functions and aliases have been removed |
1057 | (the appropriate new function is given in parentheses; "not needed" | |
1058 | means you can just remove all calls to the function in question): | |
1059 | ||
1060 | *** `comint-kill-output' (`comint-delete-output') | |
1061 | *** `decompose-composite-char' (`char-to-string') | |
1062 | *** `outline-visible' (`outline-invisible-p') | |
1063 | *** `internal-find-face' (`facep') | |
1064 | *** `internal-get-face' (`facep and check-face') | |
1065 | *** `frame-update-faces' (not needed) | |
1066 | *** `frame-update-face-colors' (`frame-set-background-mode') | |
1067 | *** `x-frob-font-weight' and `x-frob-font-slant' (`make-face-*' functions) | |
2c719188 | 1068 | *** `x-make-font-bold and x-make-font-demibold (`make-face-bold') |
7d301ae6 CY |
1069 | *** `x-make-font-italic' and `x-make-font-oblique' (`make-face-italic') |
1070 | *** `x-make-font-bold-italic' (`make-face-bold-italic') | |
1071 | *** `x-make-font-unbold' (`make-face-unbold') | |
1072 | *** `x-make-font-unitalic' (`make-face-unitalic') | |
1073 | *** `mldrag-drag-mode-line' (`mouse-drag-mode-line') | |
1074 | *** `mldrag-drag-vertical-line' (`mouse-drag-vertical-line') | |
1075 | *** `iswitchb-default-keybindings' (`iswitchb-mode') | |
1076 | *** `char-bytes' (== 1) | |
1077 | *** `isearch-return-char' (`isearch-printing-char') | |
1078 | *** `make-local-hook' (not needed) | |
1079 | *** `set-screen-height' (`set-frame-height') | |
1080 | *** `set-screen-width' (`set-frame-width') | |
1081 | ||
7d301ae6 CY |
1082 | ** The following obsolete variables and varaliases have been removed |
1083 | (the appropriate new variable is given in parentheses): | |
1084 | ||
1085 | *** `checkdoc-minor-keymap' (`checkdoc-minor-mode-map') | |
1086 | *** `vc-header-alist' (`vc-BACKEND-header') | |
1087 | *** `directory-sep-char' (== ?/) | |
1088 | *** `font-lock-defaults-alist' (`font-lock-defaults') | |
1089 | *** `e' (`float-e'). | |
3226d6ca | 1090 | |
041d709f | 1091 | ** The following obsolete files were removed: |
7b0e3048 GM |
1092 | sc.el, x-menu.el, rnews.el, rnewspost.el |
1093 | ||
7d301ae6 CY |
1094 | ** The format of the finder-inf.el file has changed, since the Finder |
1095 | mechanism is now based on the package system. The variable | |
1096 | `finder-package-info' is replaced by `package--builtins' and | |
1097 | `finder-keywords-hash'. | |
33658d4e | 1098 | |
c2c79260 DE |
1099 | ** When generating autoloads, `update-directory-autoloads' no longer |
1100 | assumes every inspected file is in your `load-path'. It instead | |
1101 | generates relative names according to the current `load-path'. | |
1102 | ||
eb199145 GM |
1103 | \f |
1104 | * Lisp changes in Emacs 24.1 | |
9097e8af | 1105 | |
041d709f | 1106 | ** Code can now use lexical scoping by default instead of dynamic scoping. |
dfdb4cad | 1107 | The `lexical-binding' variable enables lexical scoping for local |
48da7392 | 1108 | variables. It is typically set via a file-local variable in the first |
dfdb4cad CY |
1109 | line of the file, in which case it applies to all the code in that |
1110 | file. | |
1111 | ||
041d709f CY |
1112 | *** `eval' takes a new optional argument `lexical' to choose the new lexical |
1113 | binding instead of the old dynamic binding mode. | |
dfdb4cad | 1114 | |
041d709f CY |
1115 | *** Lexically scoped interpreted functions are represented with a new form |
1116 | of function value which looks like (closure ENV ARGS &rest BODY). | |
1117 | ||
1118 | *** New macro `letrec' to define recursive local functions. | |
dfdb4cad CY |
1119 | |
1120 | *** `defvar' and `defconst' now mark the variable as special (dynamic). | |
1121 | So do `defcustom' and other forms that call `defvar' as a subroutine. | |
1122 | ||
041d709f CY |
1123 | *** New function `special-variable-p' to check whether a variable is |
1124 | declared as dynamically bound. | |
1125 | ||
1126 | ** An Emacs Lisp testing tool is now included. | |
1127 | Emacs Lisp developers can use this tool to write automated tests for | |
1128 | their code. See the ERT info manual for details. | |
1129 | ||
1130 | ** Changes for bidirectional display and editing | |
f1816485 | 1131 | |
041d709f | 1132 | *** New function `current-bidi-paragraph-direction'. |
7d301ae6 | 1133 | This returns the base direction of the paragraph at point. |
041d709f | 1134 | |
041d709f | 1135 | *** New function `bidi-string-mark-left-to-right'. |
dfdb4cad CY |
1136 | Given a string containing characters from right-to-left scripts, this |
1137 | function returns another string which can be safely inserted into a | |
1138 | buffer, such that any following text will be always displayed to the | |
7d301ae6 CY |
1139 | right of that string. (This works by appending an invisible Unicode |
1140 | "LEFT-TO-RIGHT MARK" character if the argument string might need it.) | |
041d709f | 1141 | |
7d301ae6 | 1142 | This is useful when the buffer has overall left-to-right paragraph |
dfdb4cad CY |
1143 | direction and you need to insert a string whose contents are not known |
1144 | in advance, without disrupting the layout of the line. | |
041d709f | 1145 | |
bee0fcef | 1146 | ** Window changes |
dfdb4cad | 1147 | |
c4682d18 MR |
1148 | *** Window tree functions are accessible in Elisp. |
1149 | Functions are provided to return the parent, siblings or child windows | |
1150 | of any window including internal windows (windows not associated with a | |
1151 | buffer) in the window tree. | |
dfdb4cad | 1152 | |
24300f5f CY |
1153 | **** New function `window-valid-p' gives non-nil for live and internal |
1154 | windows. | |
dfdb4cad | 1155 | |
24300f5f | 1156 | **** Window manipulation can deal with internal windows. |
c4682d18 MR |
1157 | Many window handling functions like `split-window', `delete-window', or |
1158 | `delete-other-windows' as well as the window resizing functions can now | |
1159 | act on any window including internal ones. | |
dfdb4cad | 1160 | |
c4682d18 MR |
1161 | *** window-total-height/-width vs window-body-height/-width. |
1162 | The function `window-height' has been renamed to `window-total-height' | |
1163 | and `window-width' has been renamed to `window-body-width'. The old | |
1164 | names are provided as aliases. Two new functions `window-total-width' | |
1165 | and `window-body-height' are provided. | |
dfdb4cad | 1166 | |
c4682d18 MR |
1167 | *** Window parameters specific to window handling functions. |
1168 | For each window you can specify a parameter to override the default | |
1169 | behavior of a number of functions like `split-window', `delete-window' | |
ed6235ea MR |
1170 | and `delete-other-windows'. The variable `ignore-window-parameters' |
1171 | allows to ignore processing such parameters. | |
dfdb4cad | 1172 | |
c4682d18 | 1173 | *** New semantics of third argument of `split-window'. |
c4682d18 MR |
1174 | The third argument of `split-window' has been renamed to SIDE and can be |
1175 | set to any of the values 'below, 'right, 'above, or 'left to make the | |
1176 | new window appear on the corresponding side of the window that shall be | |
1177 | split. Any other value of SIDE will cause `split-window' to split the | |
1178 | window into two side-by-side windows as before. | |
dfdb4cad | 1179 | |
c4682d18 | 1180 | *** Window resizing functions. |
487ffd7a | 1181 | A new standard function for resizing windows called `window-resize' has |
c4682d18 MR |
1182 | been introduced. This and all other functions for resizing windows no |
1183 | longer delete any windows when they become too small. | |
dfdb4cad | 1184 | |
b3c0dbfd MR |
1185 | *** Deleting the selected window now selects the most recently selected |
1186 | live window on that frame instead. | |
dfdb4cad | 1187 | |
c4682d18 MR |
1188 | *** `adjust-window-trailing-edge' adjustments. |
1189 | `adjust-window-trailing-edge' can now deal with fixed-size windows and | |
1190 | is able to resize other windows if a window adjacent to the trailing | |
1191 | edge cannot be shrunk any more. This makes its behavior more similar to | |
1192 | that of Emacs 21 without compromising, however, its inability to delete | |
1193 | windows which was introduced in Emacs 22. | |
dfdb4cad | 1194 | |
c4682d18 MR |
1195 | *** Window-local buffer lists. |
1196 | Windows now have local buffer lists. This means that removing a buffer | |
1197 | from display in a window will preferably show the buffer previously | |
1198 | shown in that window with its previous window-start and window-point | |
1199 | positions. This also means that the same buffer may be automatically | |
1200 | shown twice even if it already appears in another window. | |
dfdb4cad | 1201 | |
bee0fcef CY |
1202 | *** `switch-to-buffer' has a new optional argument FORCE-SAME-WINDOW, |
1203 | which if non-nil requires the buffer to be displayed in the currently | |
1204 | selected window, signaling an error otherwise. If nil, another window | |
1205 | can be used, e.g. if the selected one is strongly dedicated. | |
dfdb4cad | 1206 | |
0a2132ba | 1207 | *** `split-window-vertically' and `split-window-horizontally' renamed |
2d197ffb CY |
1208 | to `split-window-below' and `split-window-right' respectively. |
1209 | The old names are kept as aliases. | |
dfdb4cad | 1210 | |
0a2132ba CY |
1211 | *** Display actions |
1212 | ||
1213 | **** The second arg to `display-buffer' and `pop-to-buffer' is now | |
1214 | named ACTION, and takes a display action of the same form as | |
1215 | `display-buffer-base-action' (see Changes, above). A non-nil, | |
1216 | non-list value is treated specially, as the old meaning. | |
1217 | ||
1218 | **** New variable `display-buffer-overriding-action'. | |
1219 | ||
1220 | **** The procedure of `display-buffer' etc. to choose a window is | |
1221 | determined by combining `display-buffer-overriding-action', | |
1222 | `display-buffer-alist', the ACTION arg, `display-buffer-base-action', | |
1223 | and `display-buffer-fallback-action'. The second and fourth of these | |
1224 | are user-customizable variables. | |
1225 | ||
1226 | See the docstring of `display-buffer' for details. | |
bee0fcef | 1227 | |
20d2304d CY |
1228 | *** New functions `window-state-get' and `window-state-put'. |
1229 | These functions allow to save and restore the state of an arbitrary | |
1230 | frame or window as an Elisp object. | |
1231 | ||
a2a25d24 | 1232 | ** Completion |
041d709f | 1233 | |
7d301ae6 CY |
1234 | *** New variable `completion-extra-properties' used to specify extra |
1235 | properties of the current completion: | |
a2a25d24 SM |
1236 | - :annotate-function, same as the old completion-annotate-function. |
1237 | - :exit-function, function to call after completion took place. | |
1238 | ||
7d301ae6 CY |
1239 | *** Functions on `completion-at-point-functions' can return any of the |
1240 | properties valid for `completion-extra-properties'. | |
a2a25d24 | 1241 | |
7d301ae6 | 1242 | *** `completion-annotate-function' is obsolete. |
a2a25d24 | 1243 | |
620c53a6 SM |
1244 | *** New `metadata' method for completion tables. The metadata thus returned |
1245 | can specify various details of the data returned by `all-completions': | |
1246 | - `category' is the kind of objects returned (e.g., `buffer', `file', ...), | |
1247 | used to select a style in completion-category-overrides. | |
1248 | - `annotation-function' to add annotations in *Completions*. | |
1249 | - `display-sort-function' to specify how to sort entries in *Completions*. | |
1250 | - `cycle-sort-function' to specify how to sort entries when cycling. | |
1251 | ||
7d301ae6 CY |
1252 | *** `minibuffer-local-filename-must-match-map' is not used any more. |
1253 | Instead, the bindings in `minibuffer-local-filename-completion-map' | |
1254 | are combined with `minibuffer-local-must-match-map'. | |
de09aa52 CY |
1255 | |
1256 | *** New variable `completing-read-function' allows overriding the | |
1257 | behavior of `completing-read'. | |
1258 | ||
f042970d | 1259 | ** `glyphless-char-display' can now distinguish between graphical and |
16a43933 CY |
1260 | text terminal display, via a char-table entry that is a cons cell. |
1261 | ||
7d301ae6 | 1262 | ** `pre-command-hook'/`post-command-hook' are not reset to nil on error. |
f6d62986 SM |
1263 | Instead, the offending function is removed. |
1264 | ||
b1f6fa26 CY |
1265 | ** New hook types |
1266 | ||
1267 | *** New function `run-hook-wrapped' for running an abnormal hook by | |
1268 | passing the hook functions as arguments to a "wrapping" function. | |
e7bc51d0 | 1269 | Like `run-hook-with-args-until-success', it stops at the first |
5385447f | 1270 | non-nil return value. |
e7bc51d0 | 1271 | |
b1f6fa26 CY |
1272 | *** New macro `with-wrapper-hook' for running an abnormal hook as a |
1273 | set of "wrapping" filters, similar to around advice. | |
54521c99 GM |
1274 | (A version of this macro was actually added in Emacs 23.2 but was not |
1275 | advertised at the time.) | |
f6d62986 | 1276 | |
0b19b281 | 1277 | ** Debugger changes |
dfdb4cad | 1278 | |
0b19b281 | 1279 | *** New macro `condition-case-unless-debug' (this was actually added in |
1be3ca5a | 1280 | Emacs 23.1 as condition-case-no-debug, but not advertised) |
dfdb4cad | 1281 | |
0b19b281 | 1282 | *** The macro `with-demoted-errors' was added in Emacs 23.1, but not advertised. |
dfdb4cad | 1283 | |
0b19b281 | 1284 | *** Variable `stack-trace-on-error' removed. |
dfdb4cad | 1285 | |
0b19b281 CY |
1286 | *** The debugger can now "continue" from an error, which means it will |
1287 | jump to the error handler as if the debugger had not been invoked | |
1288 | instead of jumping all the way to the top-level. | |
dfdb4cad | 1289 | |
0b19b281 CY |
1290 | *** Set `debug-on-event' to enter the debugger on events like SIGUSR1. |
1291 | This can be useful when `inhibit-quit' is set. | |
d6b1d521 | 1292 | |
953cebf5 | 1293 | ** The new function `server-eval-at' allows evaluation of Lisp forms on |
37576acd | 1294 | named Emacs server instances. |
7deebf1b | 1295 | |
1b9f60cc GM |
1296 | ** `call-process' and `call-process-region' allow a `(:file "file")' spec |
1297 | to redirect STDOUT to a file. | |
7deebf1b | 1298 | |
7d301ae6 CY |
1299 | ** The function `format-time-string' now supports the %N directive, |
1300 | for higher-resolution time stamps. | |
da97a9e6 | 1301 | |
0b19b281 | 1302 | ** New input reading functions |
dfdb4cad | 1303 | |
0b19b281 CY |
1304 | *** New function `read-char-choice' reads a restricted set of |
1305 | characters, discarding any inputs not inside the set. | |
dfdb4cad | 1306 | |
0b19b281 CY |
1307 | *** The command `read-color' now requires a match for a color name |
1308 | or RGB triplet, instead of signaling an error if the user provides | |
1309 | invalid input. | |
dfdb4cad | 1310 | |
0b19b281 | 1311 | **** `facemenu-read-color' is now an alias for `read-color'. |
3ef01959 | 1312 | |
2e288d54 JB |
1313 | ** `image-library-alist' is renamed to `dynamic-library-alist'. |
1314 | The variable is now used to load all kind of supported dynamic libraries, | |
1315 | not just image libraries. The previous name is still available as an | |
1316 | obsolete alias. | |
1317 | ||
0b19b281 | 1318 | ** Syntax parsing changes |
dfdb4cad | 1319 | |
0b19b281 | 1320 | *** New variable `syntax-propertize-function'. |
04e2ce72 | 1321 | This replaces `font-lock-syntactic-keywords' which is now obsolete. |
cf38dd42 SM |
1322 | This allows syntax-table properties to be set independently from font-lock: |
1323 | just call syntax-propertize to make sure the text is propertized. | |
1324 | Together with this new variable come a new hook | |
1325 | syntax-propertize-extend-region-functions, as well as two helper functions: | |
1326 | syntax-propertize-via-font-lock to reuse old font-lock-syntactic-keywords | |
1327 | as-is; and syntax-propertize-rules which provides a new way to specify | |
1328 | syntactic rules. | |
dfdb4cad | 1329 | |
0b19b281 | 1330 | *** Syntax tables support a new "comment style c" additionally to style b. |
a2e5caf7 | 1331 | |
7d301ae6 | 1332 | ** New hook `post-self-insert-hook', run after `self-insert-command'. |
041d709f | 1333 | |
4e2db1fe | 1334 | ** frame-local variables cannot be let-bound any more. |
041d709f | 1335 | |
15de15c6 | 1336 | ** Major and minor mode changes |
dfdb4cad | 1337 | |
0b19b281 CY |
1338 | *** `set-auto-mode' now respects mode: local variables at the end of files, |
1339 | as well as those in the -*- line. | |
dfdb4cad | 1340 | |
15de15c6 CY |
1341 | *** `prog-mode' is a new major mode from which programming modes |
1342 | should be derived. | |
dfdb4cad | 1343 | |
15de15c6 CY |
1344 | **** `prog-mode-hook' can be used to enable features for programming |
1345 | modes, e.g. (add-hook 'prog-mode-hook 'flyspell-prog-mode) to enable | |
1346 | on-the-fly spell checking for comments and strings. | |
dfdb4cad | 1347 | |
15de15c6 CY |
1348 | *** New hook `change-major-mode-after-body-hook', run by |
1349 | `run-mode-hooks' just before any other mode hooks. | |
dfdb4cad | 1350 | |
7a9a2fc6 GM |
1351 | *** Enabled globalized minor modes can be disabled in specific major modes. |
1352 | If the global mode is global-FOO-mode, then run (FOO-mode -1) in the | |
1353 | major mode's hook, where FOO-mode toggles the mode on a per-buffer basis. | |
dfdb4cad | 1354 | |
feb8a83a | 1355 | *** `define-minor-mode' accepts new keywords :variable, :after-hook. |
f44379e7 | 1356 | |
7d301ae6 CY |
1357 | ** File-handling changes |
1358 | ||
7d301ae6 | 1359 | *** `delete-file' and `delete-directory' now accept optional arg TRASH. |
f1a5d776 CY |
1360 | Trashing is performed if TRASH and `delete-by-moving-to-trash' are |
1361 | both non-nil. Interactively, TRASH defaults to t, unless a prefix | |
1362 | argument is supplied (see Trash changes, above). | |
53967e09 | 1363 | |
7d301ae6 | 1364 | *** New file predicates: `file-equal-p', `file-in-directory-p'. |
ec70a47d | 1365 | |
4039c786 CY |
1366 | ** Tool-bars can display separators. |
1367 | Tool-bar separators are handled like menu separators in menu-bar maps, | |
94975270 | 1368 | i.e. via menu entries of the form `(menu-item "--")'. |
9317e499 | 1369 | |
00fe2df1 JL |
1370 | ** Image API |
1371 | ||
18af70d0 CY |
1372 | *** Animated images support (currently animated gifs only). |
1373 | ||
1374 | **** `image-animated-p' returns non-nil if an image can be animated. | |
1375 | ||
1376 | **** `image-animate' animates a supplied image spec. | |
1377 | ||
1378 | **** `image-animate-timer' returns the timer object for an image that | |
1379 | is being animated. | |
00fe2df1 | 1380 | |
7cb76fe0 GM |
1381 | *** `image-extension-data' has been renamed to `image-metadata'. |
1382 | The old name is an obsolete alias to the new one. | |
1546c559 | 1383 | |
b4ac6e8c GM |
1384 | *** Image mode can view any image type that ImageMagick supports. |
1385 | This requires Emacs to be built with ImageMagick support. | |
7d301ae6 CY |
1386 | |
1387 | **** New function `imagemagick-types', defined if ImageMagick support | |
1388 | is enabled, returns a list of image file extensions that your | |
1389 | ImageMagick installation supports. | |
1390 | ||
1391 | **** New function `imagemagick-register-types' enables ImageMagick | |
1392 | image types in Image mode and in `create-image' and other helper | |
1393 | functions. | |
1394 | ||
1395 | **** New option `imagemagick-types-inhibit' excludes certain | |
1396 | ImageMagick image types from `imagemagick-register-types'. | |
1397 | ||
7d301ae6 CY |
1398 | **** With ImageMagick support, there are extra Image mode commands to |
1399 | resize and rotate images: `image-transform-fit-to-height', | |
1400 | `image-transform-fit-to-width', `image-transform-set-rotation', and | |
1401 | `image-transform-set-scale'. | |
041d709f | 1402 | |
7d301ae6 CY |
1403 | ** `compose-mail' now accepts an optional 8th arg, RETURN-ACTION, and |
1404 | passes it to the mail user agent function. This argument specifies an | |
1405 | action for returning to the caller after finishing with the mail. For | |
1406 | example, this is used by Rmail to optionally delete a mail window. | |
b4ac6e8c | 1407 | |
71c17aec | 1408 | ** XML and HTML parsing |
483ab230 CY |
1409 | If Emacs is compiled with libxml2 support, there are two new |
1410 | functions: `libxml-parse-html-region' (which parses "real world" HTML) | |
1411 | and `libxml-parse-xml-region' (which parses XML). Both return an | |
1412 | Emacs Lisp parse tree. | |
4b9832a6 | 1413 | |
7d301ae6 | 1414 | ** Networking and encryption changes |
e2574f2c | 1415 | |
7d301ae6 CY |
1416 | *** `open-network-stream' can now be used to open an encrypted stream. |
1417 | It now accepts an optional `:type' parameter for initiating a TLS | |
1418 | connection, directly or via STARTTLS. To do STARTTLS, additional | |
1419 | parameters (`:end-of-command', `:success', `:capabilities-command') | |
1420 | must also be supplied. | |
1421 | ||
1422 | *** New library gnutls.el. | |
dfdb4cad CY |
1423 | The new function `gnutls-available-p' returns non-nil if Emacs is |
1424 | built with GnuTLS support. The main entry points are | |
1425 | `open-gnutls-stream' and `gnutls-negotiate'. It's easiest to use | |
1426 | these functions through `open-network-stream', because that can | |
7d301ae6 CY |
1427 | upgrade connections through STARTTLS opportunistically or use plain |
1428 | SSL, depending on your needs. For debugging, set `gnutls-log-level' | |
1429 | greater than 0. | |
1430 | ||
7d301ae6 CY |
1431 | *** New primitive `secure-hash' that supports many secure hash algorithms: |
1432 | md5, sha1, sha2, sha224, sha256, sha384, and sha512. The lisp library | |
1433 | sha1.el has been removed. The `sha1' feature is provided by default. | |
71c17aec | 1434 | |
a6020335 MH |
1435 | ** Isearch |
1436 | ||
1437 | *** New hook `isearch-update-post-hook' that runs in `isearch-update'. | |
1438 | ||
9326ba26 CY |
1439 | ** Progress reporters can now "spin". |
1440 | The MIN-VALUE and MAX-VALUE arguments of `make-progress-reporter' can | |
1441 | now be nil, or omitted. This makes a "non-numeric" reporter. Each | |
1442 | time you call `progress-reporter-update' on that progress reporter, | |
1443 | with a nil or omitted VALUE argument, the reporter message is | |
1444 | displayed with a "spinning bar". | |
1445 | ||
3e214b50 JB |
1446 | ** New variable `revert-buffer-in-progress-p' is true while a buffer is |
1447 | being reverted, even if the buffer has a local `revert-buffer-function'. | |
1448 | ||
001bf877 GM |
1449 | ** New variables `delayed-warnings-list' and `delayed-warnings-hook'. |
1450 | If delayed-warnings-list is non-nil, the command loop calls | |
7d301ae6 CY |
1451 | `delayed-warnings-hook' after `post-command-hook'. At present, this |
1452 | is only used by Emacs on some platforms to display warnings during | |
1453 | startup, which might otherwise not be noticed. This uses the | |
1454 | functions `display-delayed-warnings' and `collapse-delayed-warnings'. | |
001bf877 | 1455 | |
6420d28b CY |
1456 | ** rx.el has a new `group-n' construct for explicitly numbered groups. |
1457 | ||
dac86404 GM |
1458 | ** New function `make-composed-keymap' that constructs a new keymap |
1459 | from multiple input maps. You can use this to make a keymap that | |
1460 | inherits from multiple maps, eg: | |
1461 | (set-keymap-parent newmap (make-composed-keymap othermap parent)) | |
43dc9f5b | 1462 | |
c8f6ec5c GM |
1463 | ** New function `string-prefix-p'. |
1464 | (This was actually added in Emacs 23.2 but was not advertised at the time.) | |
1465 | ||
27f7ef2f | 1466 | ** New reader macro ## that stands for the empty symbol. |
43dc9f5b AS |
1467 | This means that the empty symbol can now be read back. Also, #: by itself |
1468 | (when not immediately followed by a possible symbol character) stands for | |
1469 | an empty uninterned symbol. | |
041d709f | 1470 | |
fead402d CY |
1471 | ** New math functions `isnan', `copysign', `frexp', `ldexp'. |
1472 | ||
7d301ae6 | 1473 | ** The following functions and variables are obsolete: |
041d709f | 1474 | |
05f77e38 GM |
1475 | *** `tooltip-use-echo-area' is obsolete. |
1476 | Rather than setting this to t, disable Tooltip mode instead. | |
1477 | ||
041d709f CY |
1478 | *** buffer-substring-filters is obsolete. |
1479 | Use `filter-buffer-substring-functions' instead. | |
1480 | ||
1481 | *** `byte-compile-disable-print-circle' is obsolete. | |
1482 | ||
1483 | *** `deferred-action-list' and `deferred-action-function' are obsolete. | |
f160676e GM |
1484 | Use `post-command-hook' instead. |
1485 | ||
67e729a5 CY |
1486 | *** `font-lock-maximum-size' is obsolete. |
1487 | ||
eb199145 GM |
1488 | \f |
1489 | * Changes in Emacs 24.1 on non-free operating systems | |
d53a60a6 | 1490 | |
7a22e700 | 1491 | ** On MS Windows, Emacs warns when using the obsolete init file _emacs, |
a2f0118c GM |
1492 | and also when HOME is set to C:\ by default. |
1493 | ||
7a22e700 | 1494 | ** New configure.bat options |
04779484 | 1495 | |
7a22e700 | 1496 | *** --enable-checking builds Emacs with extra runtime checks. |
e3aef5c6 | 1497 | |
7a22e700 | 1498 | *** --distfiles specifies files to be included in binary distribution. |
e2574f2c | 1499 | |
7a22e700 OK |
1500 | *** --without-gnutls disables automatic GnuTLS detection. |
1501 | ||
a0d363f4 | 1502 | *** --lib for general library linkage, works with the USER_LIBS build variable. |
e2574f2c | 1503 | |
0a19a6f8 | 1504 | ** New make target `dist' to create binary distribution for MS Windows. |
e3aef5c6 | 1505 | |
1f5e1a16 GM |
1506 | ** The Lisp function `w32-default-color-map' is now obsolete. |
1507 | (It is only used internally in the Emacs C code.) | |
5430d399 | 1508 | |
1f5e1a16 GM |
1509 | ** Customize ns-auto-hide-menu-bar to have the menu-bar hidden, but |
1510 | reappear on mouse-over. (Requires OS X 10.6 or later.) | |
04e2ce72 | 1511 | |
ad7c802c CY |
1512 | ** On Mac OS X, dragging a file into Emacs visits the file, like on |
1513 | other platforms, rather than inserting its contents into the buffer. | |
1514 | ||
05197f40 | 1515 | \f |
a933dad1 | 1516 | ---------------------------------------------------------------------- |
5b87ad55 | 1517 | This file is part of GNU Emacs. |
a933dad1 | 1518 | |
ab73e885 | 1519 | GNU Emacs is free software: you can redistribute it and/or modify |
5b87ad55 | 1520 | it under the terms of the GNU General Public License as published by |
ab73e885 GM |
1521 | the Free Software Foundation, either version 3 of the License, or |
1522 | (at your option) any later version. | |
5b87ad55 GM |
1523 | |
1524 | GNU Emacs is distributed in the hope that it will be useful, | |
1525 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
1526 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
1527 | GNU General Public License for more details. | |
a933dad1 | 1528 | |
5b87ad55 | 1529 | You should have received a copy of the GNU General Public License |
ab73e885 | 1530 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
a933dad1 | 1531 | |
05197f40 | 1532 | \f |
a933dad1 DL |
1533 | Local variables: |
1534 | mode: outline | |
1535 | paragraph-separate: "[ \f]*$" | |
1536 | end: |