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29b7722a | 1 | GNU Emacs NEWS -- history of user-visible changes. |
5b87ad55 | 2 | |
73b0cd50 | 3 | Copyright (C) 2010-2011 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 | |
adce950d CY |
17 | |
18 | Temporary note: | |
19 | +++ indicates that the appropriate manual has already been updated. | |
20 | --- means no change in the manuals is called for. | |
21 | When you add a new item, please add it without either +++ or --- | |
22 | so we will look at it and add it to the manual. | |
23 | ||
24 | \f | |
eb199145 | 25 | * Installation Changes in Emacs 24.1 |
09e18d03 | 26 | |
338648ad GM |
27 | ** Configure links against libselinux if it is found. |
28 | You can disable this by using --without-selinux. | |
29 | ||
30 | --- | |
31 | ** By default, the installed Info and man pages are compressed. | |
32 | You can disable this by configuring --without-compress-info. | |
33 | ||
aded53ff GM |
34 | --- |
35 | ** There are new configure options: | |
36 | --with-mmdf, --with-mail-unlink, --with-mailhost. | |
37 | These provide no new functionality, they just remove the need to edit | |
38 | lib-src/Makefile by hand in order to use the associated features. | |
39 | ||
e547b051 | 40 | --- |
30c4d8dc | 41 | ** Emacs can be compiled against Gtk+ 3.0 if you pass --with-x-toolkit=gtk3 |
e547b051 J |
42 | to configure. Note that other libraries used by Emacs, RSVG and GConf, |
43 | also depend on Gtk+. You can disable them with --without-rsvg and | |
44 | --without-gconf. | |
45 | ||
3fd50d5c | 46 | --- |
d9170db5 DN |
47 | ** There is a new configure option --enable-use-lisp-union-type. |
48 | This is only useful for Emacs developers to debug certain types of bugs. | |
b2957ea8 | 49 | This is not a new feature; only the configure flag is new. |
d9170db5 | 50 | |
3fd50d5c | 51 | --- |
81eafe29 PE |
52 | ** There is a new configure option --with-wide-int. |
53 | With it, Emacs integers typically have 62 bits, even on 32-bit machines. | |
54 | ||
d064e6a6 | 55 | --- |
f042970d | 56 | ** New translation of the Emacs Tutorial in Hebrew is available. |
d064e6a6 EZ |
57 | Type `C-u C-h t' to choose it in case your language setup doesn't |
58 | automatically select it. | |
59 | ||
ddb54206 | 60 | ** Emacs can be compiled with ImageMagick support. |
041d709f | 61 | Emacs links to ImageMagick if version 6.2.8 or newer of the library is |
ddb54206 CY |
62 | present at build time. To inhibit ImageMagick, use the configure |
63 | option `--without-imagemagick' . | |
041d709f | 64 | |
ddb54206 | 65 | --- |
041d709f CY |
66 | ** The standalone programs digest-doc and sorted-doc are removed. |
67 | Emacs now uses Lisp commands `doc-file-to-man' and `doc-file-to-info'. | |
68 | ||
69 | --- | |
70 | ** The standalone program `fakemail' is removed. | |
71 | If you need it, feedmail.el provides a superset of the functionality. | |
72 | ||
0bfd685e | 73 | \f |
eb199145 | 74 | * Startup Changes in Emacs 24.1 |
4a263588 | 75 | |
fdeb32ec | 76 | --- |
198a7a97 | 77 | ** The --unibyte, --multibyte, --no-multibyte, and --no-unibyte |
adbf62ff GM |
78 | command line arguments, and the EMACS_UNIBYTE environment variable, no |
79 | longer have any effect. (They were declared obsolete in Emacs 23.) | |
198a7a97 | 80 | |
fdeb32ec | 81 | +++ |
66b7b0fe GM |
82 | ** New command line option `--no-site-lisp' removes site-lisp directories |
83 | from load-path. -Q now implies this. | |
84 | ||
fdeb32ec | 85 | --- |
71edd0ec JB |
86 | ** On Windows, Emacs now warns when the obsolete _emacs init file is used, |
87 | and also when HOME is set to C:\ by default. | |
8a05b668 | 88 | |
0bfd685e | 89 | \f |
eb199145 | 90 | * Changes in Emacs 24.1 |
7841339b | 91 | |
3fd50d5c | 92 | +++ |
041d709f | 93 | ** auto-mode-case-fold is now enabled by default. |
2a847524 | 94 | |
a2a25d24 | 95 | ** Completion |
fdeb32ec | 96 | |
e17d9003 SM |
97 | *** shell-mode uses pcomplete rules, with the standard completion UI. |
98 | ||
a2a25d24 SM |
99 | *** Many packages have been changed to use completion-at-point rather than |
100 | their own completion code. | |
101 | ||
102 | *** Completion in a non-minibuffer now tries to detect the end of completion | |
103 | and pops down the *Completions* buffer accordingly. | |
104 | ||
105 | *** Completion can cycle, depending on completion-cycle-threshold. | |
902a6d8d | 106 | |
a2a25d24 SM |
107 | *** New completion style `substring'. |
108 | ||
620c53a6 SM |
109 | *** Completion style can be set per-category `completion-category-overrides'. |
110 | ||
111 | *** Completion of buffers now uses substring completion by default. | |
112 | ||
a2a25d24 | 113 | *** `completing-read' can be customized using the new variable |
f042970d | 114 | `completing-read-function'. |
3ec03f7e | 115 | |
3349e122 SM |
116 | *** minibuffer-local-filename-must-match-map is not used any more. |
117 | Instead, the bindings in minibuffer-local-filename-completion-map are combined | |
118 | with minibuffer-local-must-match-map. | |
119 | ||
6870aaef LMI |
120 | ** Mail changes |
121 | ||
041d709f CY |
122 | The default of `send-mail-function' is now `sendmail-query-once', |
123 | which asks the user (once) whether to use the smtpmail package to send | |
124 | email, or to use the old defaults that rely on external mail | |
125 | facilities (`sendmail-send-it' on GNU/Linux and other Unix-like | |
126 | systems, and `mailclient-send-it' on Windows). | |
6870aaef | 127 | |
041d709f | 128 | *** smtpmail changes |
95f41d9a | 129 | |
041d709f CY |
130 | **** smtpmail now uses encrypted connections (via STARTTLS) if the |
131 | mail server supports them. It also uses the auth-source framework for | |
132 | getting credentials. | |
95f41d9a | 133 | |
041d709f CY |
134 | **** The variable `smtpmail-auth-credentials' has been removed. |
135 | That variable used to have the default value "~/.authinfo", in which | |
136 | case you won't see any difference. But if you changed it to be a list | |
137 | of user names and passwords, that setting is now ignored; you will be | |
138 | prompted for the user name and the password, which will then be saved | |
139 | to ~/.authinfo. | |
e2430e31 | 140 | |
041d709f CY |
141 | You can also manually copy the credentials to your ~/.authinfo file. |
142 | For example, if you had | |
e2430e31 | 143 | |
041d709f CY |
144 | (setq smtpmail-auth-credentials |
145 | '(("mail.example.org" 25 "jim" "s!cret"))) | |
e2430e31 LMI |
146 | |
147 | then the equivalent line in ~/.authinfo would be | |
148 | ||
041d709f CY |
149 | machine mail.example.org port 25 login jim password s!cret |
150 | ||
151 | **** The variable `smtpmail-starttls-credentials' has been removed. | |
95f41d9a | 152 | |
041d709f | 153 | If you had that set, then then you need to put |
95f41d9a | 154 | |
041d709f | 155 | machine smtp.whatever.foo port 25 key "~/.my_smtp_tls.key" cert "~/.my_smtp_tls.cert" |
95f41d9a LMI |
156 | |
157 | in your ~/.authinfo file instead. | |
158 | ||
c3760c17 EZ |
159 | *** sendmail changes |
160 | +++ | |
161 | You can now add MIME attachments to outgoing messages with the new | |
162 | command `mail-add-attachment'. | |
163 | ||
164 | --- | |
165 | The command `mail-attach-file' was renamed to `mail-insert-file'; the | |
166 | old name is now an obsolete alias to the new name. | |
167 | ||
041d709f | 168 | ** Emacs server and client changes |
ddb54206 | 169 | +++ |
041d709f CY |
170 | *** New option `server-port' specifies the port on which the Emacs |
171 | server should listen. | |
172 | +++ | |
173 | *** New emacsclient argument -q/--quiet suppresses some status messages. | |
174 | +++ | |
175 | *** New emacsclient argument --frame-parameters can be used to set the | |
176 | frame parameters of a newly-created graphical frame. | |
177 | +++ | |
178 | *** If emacsclient shuts down as a result of Emacs signalling an | |
179 | error, its exit status is 1. | |
180 | +++ | |
181 | *** New emacsclient argument --parent-id ID. | |
182 | This opens a client frame in parent X window ID, via XEmbed, similar | |
183 | to the --parent-id argument to Emacs. | |
184 | ||
d0ce9f8c MB |
185 | ** Internationalization changes |
186 | ||
f4b6ba46 | 187 | +++ |
d0ce9f8c | 188 | *** Emacs now supports display and editing of bidirectional text. |
f4b6ba46 | 189 | |
f1816485 EZ |
190 | Text that includes characters from right-to-left (RTL) scripts, such |
191 | as Arabic, Farsi, or Hebrew, is displayed in the correct visual order | |
192 | as expected by users of those scripts. This display reordering is a | |
193 | "Full bidirectionality" class implementation of the Unicode | |
194 | Bidirectional Algorithm. Buffers RTL text should look exactly the | |
195 | same as before. | |
f4b6ba46 | 196 | |
041d709f CY |
197 | For more information, see the node "Bidirectional Editing" in the |
198 | Emacs Manual. | |
f4b6ba46 | 199 | |
041d709f CY |
200 | +++ |
201 | **** New buffer-local variable `bidi-display-reordering'. | |
202 | To disable display reordering in any given buffer, change this to nil. | |
d20e1419 | 203 | |
041d709f CY |
204 | +++ |
205 | **** New buffer-local variable `bidi-paragraph-direction'. | |
206 | If nil (the default), Emacs determines the base direction of each | |
207 | paragraph from its text, as specified by the Unicode Bidirectional | |
f4b6ba46 EZ |
208 | Algorithm. |
209 | ||
041d709f CY |
210 | Setting this to `right-to-left' or `left-to-right' forces a particular |
211 | base direction on each paragraph in the buffer. | |
212 | ||
f1816485 EZ |
213 | Paragraphs whose base direction is right-to-left are displayed |
214 | starting at the right margin of the window. | |
215 | ||
d0ce9f8c | 216 | +++ |
041d709f CY |
217 | *** Enhanced support for characters with no glyphs in available fonts. |
218 | If a character has no glyphs in any of the available fonts, Emacs | |
219 | normally displays it either as a hexadecimal code in a box or as a | |
d0ce9f8c MB |
220 | thin 1-pixel space. In addition to these two methods, Emacs can |
221 | display these characters as empty box, as an acronym, or not display | |
222 | them at all. To change how these characters are displayed, customize | |
223 | the variable `glyphless-char-display-control'. | |
224 | ||
041d709f | 225 | On character terminals, these methods are used for characters that |
d0ce9f8c MB |
226 | cannot be encoded by the `terminal-coding-system'. |
227 | ||
ddb54206 | 228 | --- |
041d709f CY |
229 | *** New input methods for Farsi: farsi and farsi-translit. |
230 | ||
231 | ** Improved GTK integration | |
d0ce9f8c | 232 | |
041d709f | 233 | *** GTK scroll-bars are now placed on the right by default. |
52834b6b CY |
234 | Use `set-scroll-bar-mode' to change this. |
235 | ||
041d709f | 236 | *** GTK tool bars can have just text, just images or images and text. |
d8004abe | 237 | Customize `tool-bar-style' to choose style. On a Gnome desktop, the default |
20fe03ad JD |
238 | is taken from the desktop settings. |
239 | ||
041d709f | 240 | *** GTK tool bars can be placed on the left/right or top/bottom of the frame. |
8b2dd508 | 241 | The frame-parameter tool-bar-position controls this. It takes the values |
1c0d77cc | 242 | top, left, right or bottom. The Options => Show/Hide menu has entries |
8b2dd508 JD |
243 | for this. |
244 | ||
041d709f CY |
245 | *** The colors for selected text (the region face) are taken from the GTK |
246 | theme when Emacs is built with GTK. | |
16a91140 | 247 | |
041d709f CY |
248 | *** Emacs uses GTK tooltips by default if built with GTK. You can turn that |
249 | off by customizing x-gtk-use-system-tooltips. | |
16a91140 | 250 | |
35137ed3 | 251 | +++ |
bc987f8b JL |
252 | ** New basic faces `error', `warning', `success' are available to |
253 | highlight strings that indicate failure, caution or successful operation. | |
254 | ||
1ecb2d3f | 255 | ** Lucid menus and dialogs can display antialiased fonts if Emacs is built |
3928f2b6 JD |
256 | with Xft. To change font, use the X resource font, for example: |
257 | Emacs.pane.menubar.font: Courier-12 | |
99852628 | 258 | |
917794d5 | 259 | ** On graphical displays, the mode-line no longer ends in dashes. |
1dd3c2d9 CY |
260 | Also, the first dash (which does not indicate anything) is just |
261 | displayed as a space. | |
917794d5 | 262 | |
b7d65a5f GM |
263 | ** Basic SELinux support has been added. |
264 | This requires Emacs to be linked with libselinux at build time. | |
265 | ||
d8004abe GM |
266 | *** Emacs preserves the SELinux file context when backing up, and |
267 | optionally when copying files. To this end, copy-file has an extra | |
268 | optional argument, and backup-buffer and friends include the SELinux | |
269 | context in their return values. | |
b7d65a5f GM |
270 | |
271 | *** The new functions file-selinux-context and set-file-selinux-context | |
272 | get and set the SELinux context of a file. | |
273 | ||
a5bee597 MA |
274 | *** Tramp offers handlers for file-selinux-context and set-file-selinux-context |
275 | for remote machines which support SELinux. | |
276 | ||
a4180391 PE |
277 | +++ |
278 | ** The function format-time-string now supports the %N directive, for | |
279 | higher-resolution time stamps. | |
280 | ||
041d709f | 281 | ** Changes for exiting Emacs |
ddb54206 | 282 | +++ |
041d709f CY |
283 | *** The function kill-emacs is now run upon receipt of the signals |
284 | SIGTERM and SIGHUP, and upon SIGINT in batch mode. | |
ddb54206 | 285 | +++ |
041d709f | 286 | *** kill-emacs-hook is now also run in batch mode. |
63c72eeb GM |
287 | If you have code that adds something to kill-emacs-hook, you should |
288 | consider if it is still appropriate to add it in the noninteractive case. | |
9c524fcb | 289 | |
041d709f CY |
290 | ** Scrolling changes |
291 | ||
292 | *** New scrolling commands `scroll-up-command' and `scroll-down-command' | |
0a19a6f8 JB |
293 | (bound to C-v/[next] and M-v/[prior]) do not signal errors at top/bottom |
294 | of buffer at first key-press (instead move to top/bottom of buffer) | |
7b05466f | 295 | when a new variable `scroll-error-top-bottom' is non-nil. |
79ce172a | 296 | |
041d709f | 297 | *** New scrolling commands `scroll-up-line' and `scroll-down-line' |
5a97d2da JL |
298 | scroll a line instead of full screen. |
299 | ||
041d709f | 300 | *** New property `scroll-command' should be set on a command's symbol to |
b2957ea8 | 301 | define it as a scroll command affected by `scroll-preserve-screen-position'. |
9013a7f8 | 302 | |
d0f69533 | 303 | +++ |
041d709f | 304 | *** If you customize `scroll-conservatively' to a value greater than 100, |
d0f69533 EZ |
305 | Emacs will never recenter point in the window when it scrolls due to |
306 | cursor motion commands or commands that move point (e.f., `M-g M-g'). | |
307 | Previously, you needed to use `most-positive-fixnum' as the value of | |
308 | `scroll-conservatively' to achieve the same effect. | |
309 | ||
310 | --- | |
041d709f | 311 | *** ``Aggressive'' scrolling now honors the scroll margins. |
d0f69533 EZ |
312 | If you customize `scroll-up-aggressively' or |
313 | `scroll-down-aggressively' and move point off the window, Emacs now | |
314 | scrolls the window so as to avoid positioning point inside the scroll | |
315 | margin. | |
316 | ||
f1a5d776 | 317 | ** Trash changes |
04e2ce72 | 318 | +++ |
f1a5d776 CY |
319 | *** `delete-by-moving-to-trash' now only affects commands that specify |
320 | trashing. This avoids inadvertently trashing temporary files. | |
04e2ce72 | 321 | +++ |
f1a5d776 CY |
322 | *** Calling `delete-file' or `delete-directory' with a prefix argument |
323 | now forces true deletion, regardless of `delete-by-moving-to-trash'. | |
324 | ||
f0bf7c8e JL |
325 | ** New option `list-colors-sort' defines the color sort order |
326 | for `list-colors-display'. | |
327 | ||
44198b6e CY |
328 | ** An Emacs Lisp package manager is now included. |
329 | This is a convenient way to download and install additional packages, | |
3fd50d5c | 330 | from a package repository at http://elpa.gnu.org. |
d43f5a42 | 331 | +++ |
cb6c4991 CY |
332 | *** `M-x list-packages' shows a list of packages, which can be |
333 | selected for installation. | |
d43f5a42 | 334 | +++ |
cb6c4991 | 335 | *** New command `describe-package', bound to `C-h P'. |
d43f5a42 | 336 | +++ |
44198b6e CY |
337 | *** By default, all installed packages are loaded and activated |
338 | automatically when Emacs starts up. To disable this, set | |
339 | `package-enable-at-startup' to nil. To change which packages are | |
340 | loaded, customize `package-load-list'. | |
341 | ||
f065864f CY |
342 | ** Custom Themes |
343 | ||
344 | *** `M-x customize-themes' lists Custom themes which can be enabled. | |
345 | ||
782b5e8d CY |
346 | *** New option `custom-theme-load-path' is the load path for themes. |
347 | Emacs no longer looks for custom themes in `load-path'. The default | |
348 | is to search in `custom-theme-directory', followed by a built-in theme | |
349 | directory named "themes/" in `data-directory'. | |
350 | ||
b7617f6d CY |
351 | *** New option `custom-safe-themes' records known-safe theme files. |
352 | If a theme is not in this list, Emacs queries before loading it, and | |
353 | offers to save the theme to `custom-safe-themes' automatically. By | |
354 | default, all themes included in Emacs are treated as safe. | |
278f6845 | 355 | |
4ddf410a MA |
356 | ** The user option `remote-file-name-inhibit-cache' controls whether |
357 | the remote file-name cache is used for read access. | |
358 | ||
041d709f | 359 | ** File- and directory-local variable changes |
b8f82dc1 | 360 | +++ |
041d709f CY |
361 | *** You can stop directory local vars from applying to subdirectories. |
362 | Add an element (subdirs . nil) to the alist portion of any variables | |
363 | settings to indicate that the section should not apply to | |
364 | subdirectories. | |
b8f82dc1 | 365 | |
041d709f CY |
366 | *** Directory local variables can apply to some file-less buffers. |
367 | Affected modes include dired, vc-dir, and log-edit. For example, | |
368 | adding "(diff-mode . ((mode . whitespace)))" to .dir-locals.el will | |
369 | turn on `whitespace-mode' for *vc-diff* buffers. Modes should call | |
370 | `hack-dir-local-variables-non-file-buffer' to support this. | |
17284e30 | 371 | |
041d709f CY |
372 | +++ |
373 | *** Using "mode: MINOR-MODE" to enable a minor mode is deprecated. | |
374 | Instead, use "eval: (minor-mode 1)". | |
c136e5cd | 375 | |
fdeb32ec | 376 | +++ |
f13183cf CY |
377 | ** The variable `focus-follows-mouse' now always defaults to nil. |
378 | ||
7f3f739f LL |
379 | ** New primitive `secure-hash' that supports many secure hash algorithms |
380 | including md5, sha-1 and sha-2 (sha-224, sha-256, sha-384 and sha-512). | |
42d4bcc8 LL |
381 | The elisp implementation sha1.el is removed. Feature sha1 is provided |
382 | by default. | |
383 | ||
5d907d6c DA |
384 | ** Menu-bar changes |
385 | ||
386 | *** `menu-bar-select-buffer-function' lets you choose another operation | |
387 | instead of `switch-to-buffer' when selecting an item in the Buffers menu. | |
388 | ||
0a2132ba CY |
389 | ** Window changes |
390 | ||
391 | +++ | |
392 | *** Resizing an Emacs frame now preserves proportional window sizes, | |
393 | modulo restrictions like window minimum sizes and fixed-size windows. | |
394 | ||
395 | *** The behavior of `display-buffer' is now customizable in detail. | |
396 | ||
397 | **** New option `display-buffer-base-action' specifies a list of | |
398 | user-determined display "actions" (functions and optional arguments | |
399 | for choosing the displaying window). | |
400 | ||
401 | This takes precedence over the default display action, which is | |
402 | specified by `display-buffer-fallback-action'. | |
403 | ||
404 | **** New option `display-buffer-alist' maps buffer name regexps to | |
405 | display actions, taking precedence over `display-buffer-base-action'. | |
406 | ||
407 | +++ | |
408 | *** New option `window-nest'. | |
409 | The new option `window-nest' allows to return the space obtained for | |
410 | resizing or creating a window more reliably to the window from which | |
411 | such space was obtained. | |
412 | ||
413 | +++ | |
414 | *** New option `window-splits'. | |
415 | The new option `window-splits' allows to split a window that otherwise | |
416 | cannot be split because it's too small by stealing space from other | |
417 | windows in the same combination. | |
418 | ||
419 | +++ | |
420 | *** New commands `maximize-window' and `minimize-window'. | |
421 | These maximize and minize the size of a window within its frame. | |
422 | ||
423 | +++ | |
424 | *** New commands `switch-to-prev-buffer' and `switch-to-next-buffer'. | |
425 | These functions allow to navigate through the live buffers that have | |
426 | been shown in a specific window. | |
427 | ||
041d709f CY |
428 | ** The inactive minibuffer has its own major mode `minibuffer-inactive-mode'. |
429 | This is handy for minibuffer-only frames, and is also used for the "mouse-1 | |
430 | pops up *Messages*" feature, which can now easily be changed. | |
431 | ||
0bfd685e | 432 | \f |
eb199145 | 433 | * Editing Changes in Emacs 24.1 |
b350bdf2 | 434 | |
892777ba | 435 | ** Search changes |
892777ba CY |
436 | +++ |
437 | *** C-y in Isearch is now bound to isearch-yank-kill, instead of | |
438 | isearch-yank-line. | |
25666126 LL |
439 | --- |
440 | *** M-y in Isearch is now bound to isearch-yank-pop, instead of | |
441 | isearch-yank-kill. | |
892777ba CY |
442 | +++ |
443 | *** M-s C-e in Isearch is now bound to isearch-yank-line. | |
444 | ||
ea4f7750 | 445 | +++ |
041d709f | 446 | ** New command `count-words-region'. This does what you expect. |
ea4f7750 | 447 | |
67027b49 | 448 | ** completion-at-point now handles tags and semantic completion. |
a982c7ec | 449 | |
d74cba8f MA |
450 | ** The default value of `backup-by-copying-when-mismatch' is now t. |
451 | ||
1c708c1a CY |
452 | ** The command `just-one-space' (C-SPC), if given a negative argument, |
453 | also deletes newlines around point. | |
454 | ||
b9229673 CY |
455 | ** Deletion changes |
456 | ||
457 | *** New option `delete-active-region'. | |
ddb54206 CY |
458 | If non-nil, [delete] and DEL delete the region if it is active and no |
459 | prefix argument is given. If set to `kill', these commands kill | |
460 | instead. | |
b9229673 | 461 | |
59ee0542 | 462 | *** New command `delete-forward-char', bound to [delete]. |
42d9cffa CY |
463 | This is meant for interactive use, and obeys `delete-active-region'. |
464 | The command `delete-char' does not obey `delete-active-region'. | |
b9229673 CY |
465 | |
466 | *** `delete-backward-char' is now a Lisp function. | |
467 | Apart from obeying `delete-active-region', its behavior is unchanged. | |
468 | However, the byte compiler now warns if it is called from Lisp; you | |
469 | should use delete-char with a negative argument instead. | |
ddb54206 | 470 | --- |
b9229673 CY |
471 | *** The option `mouse-region-delete-keys' has been deleted. |
472 | ||
f9d71b42 CY |
473 | ** Selection changes. |
474 | ||
b1ab31ae CY |
475 | The default handling of clipboard and primary selections was changed |
476 | to conform with modern X applications. In short, most commands for | |
477 | killing and yanking text now use the clipboard, while mouse commands | |
478 | use the primary selection. | |
479 | ||
480 | In the following, we provide a list of these changes, followed by a | |
481 | list of steps to get the old behavior back if you prefer that. | |
482 | ||
963578d3 | 483 | +++ |
b1ab31ae CY |
484 | *** `select-active-regions' now defaults to t. |
485 | Merely selecting text (e.g. with drag-mouse-1) no longer puts it in | |
963578d3 | 486 | the kill ring. The selected text is put in the primary selection, if |
b1ab31ae CY |
487 | the system possesses a separate primary selection facility (e.g. X). |
488 | ||
963578d3 | 489 | +++ |
b1ab31ae CY |
490 | **** `select-active-regions' also accepts a new value, `only'. |
491 | This means to only set the primary selection for temporarily active | |
492 | regions (usually made by mouse-dragging or shift-selection); | |
493 | "ordinary" active regions, such as those made with C-SPC followed by | |
494 | point motion, do not alter the primary selection. | |
495 | ||
963578d3 CY |
496 | --- |
497 | **** `mouse-drag-copy-region' now defaults to nil. | |
498 | ||
499 | +++ | |
b1ab31ae CY |
500 | *** mouse-2 is now bound to `mouse-yank-primary'. |
501 | This pastes from the primary selection, ignoring the kill-ring. | |
502 | Previously, mouse-2 was bound to `mouse-yank-at-click'. | |
503 | ||
963578d3 | 504 | +++ |
b1ab31ae | 505 | *** `x-select-enable-clipboard' now defaults to t on all platforms. |
963578d3 | 506 | +++ |
b1ab31ae CY |
507 | *** `x-select-enable-primary' now defaults to nil. |
508 | Thus, commands that kill text or copy it to the kill-ring (such as | |
509 | M-w, C-w, and C-k) also use the clipboard---not the primary selection. | |
510 | ||
963578d3 | 511 | --- |
b1ab31ae CY |
512 | **** The "Copy", "Cut", and "Paste" items in the "Edit" menu are now |
513 | exactly equivalent to, respectively M-w, C-w, and C-y. | |
514 | ||
963578d3 | 515 | --- |
b1ab31ae CY |
516 | **** Note that on MS-Windows, `x-select-enable-clipboard' was already |
517 | non-nil by default, as Windows does not support the primary selection | |
518 | between applications. | |
519 | ||
963578d3 | 520 | --- |
b1ab31ae | 521 | *** To return to the previous behavior, do the following: |
104c2fe9 | 522 | **** Change `select-active-regions' to nil. |
b1ab31ae CY |
523 | **** Change `mouse-drag-copy-region' to t. |
524 | **** Change `x-select-enable-primary' to t (on X only). | |
525 | **** Change `x-select-enable-clipboard' to nil. | |
526 | **** Bind `mouse-yank-at-click' to mouse-2. | |
f9d71b42 | 527 | |
963578d3 | 528 | +++ |
084e6df3 JD |
529 | *** Support for X cut buffers has been removed. |
530 | ||
3fd50d5c CY |
531 | *** X clipboard managers are now supported. |
532 | To inhibit this, change `x-select-enable-clipboard-manager' to nil. | |
4b80f674 | 533 | |
99f053cf | 534 | ** New command `rectangle-number-lines', bound to `C-x r N', numbers |
6b2c221e | 535 | the lines in the current rectangle. With a prefix argument, this |
99f053cf JA |
536 | prompts for a number to count from and for a format string. |
537 | ||
70436396 MA |
538 | ** The command shell prompts for the shell path name, when the default |
539 | directory is a remote file name and neither environment variable | |
540 | $ESHELL nor variable `explicit-shell-file-name' is set. | |
541 | ||
6bf7006f EZ |
542 | +++ |
543 | ** The default value of redisplay-dont-change is now t | |
544 | This makes Emacs feel more responsive to editing commands that arrive | |
545 | at high rate, e.g. if you lean on some key, because stopping redisplay | |
546 | in the middle (when this variable is nil) forces more expensive | |
547 | updates later on, and Emacs appears to be unable to keep up. | |
548 | ||
9bae34bf | 549 | \f |
eb199145 | 550 | * Changes in Specialized Modes and Packages in Emacs 24.1 |
efeb796b | 551 | |
041d709f | 552 | ** Archive Mode has basic support for browsing and updating 7z archives. |
d76674bb | 553 | |
041d709f CY |
554 | ** browse-url has a new variable `browse-url-mailto-function' |
555 | specifies how mailto: URLs are handled. The default is `browse-url-mail'. | |
cbf83ce9 | 556 | |
b7c3692a RW |
557 | ** BibTeX mode |
558 | ||
2de69e00 | 559 | *** BibTeX mode now supports biblatex. |
041d709f CY |
560 | Use the variable bibtex-dialect to select support for different BibTeX |
561 | dialects. bibtex-entry-field-alist is now an obsolete alias for | |
2de69e00 RW |
562 | bibtex-BibTeX-entry-alist. |
563 | ||
34699b85 RW |
564 | *** New command `bibtex-search-entries' bound to C-c C-a. |
565 | ||
b7c3692a RW |
566 | *** New `bibtex-entry-format' option `sort-fields', disabled by default. |
567 | ||
022fe7ce RW |
568 | *** New variable `bibtex-search-entry-globally'. |
569 | ||
cf16af42 GM |
570 | ** Calendar, Diary, and Appt |
571 | ||
548d0a63 GM |
572 | +++ |
573 | *** Diary entries can contain non-printing `comments'. | |
574 | See the variable `diary-comment-start'. | |
575 | ||
5006e634 GM |
576 | +++ |
577 | *** Appointments can specify their individual warning times. | |
578 | See the variable `appt-warning-time-regexp'. | |
579 | ||
0a2bb1a9 GM |
580 | --- |
581 | *** The function specified by `appt-disp-window-function' may be passed | |
582 | lists of arguments if multiple appointments are due at similar times. | |
583 | If you are using a custom function for this, you should update it. | |
584 | ||
d306b4da | 585 | +++ |
7454f200 GM |
586 | *** New function `diary-hebrew-birthday'. |
587 | ||
e565dd37 GM |
588 | --- |
589 | *** Elements of `calendar-day-abbrev-array' and `calendar-month-abbrev-array' | |
590 | may no longer be nil, but must all be strings. | |
591 | ||
cf16af42 GM |
592 | --- |
593 | *** The obsolete (since Emacs 22.1) method of enabling the appt package | |
594 | by adding appt-make-list to diary-hook has been removed. Use appt-activate. | |
595 | ||
596 | --- | |
597 | *** Some appt variables (obsolete since Emacs 22.1) have been removed: | |
598 | appt-issue-message (use the function appt-activate) | |
599 | appt-visible/appt-msg-window (use the variable appt-display-format) | |
600 | ||
601 | --- | |
602 | *** Some diary function aliases (obsolete since Emacs 22.1) have been removed: | |
603 | view-diary-entries, list-diary-entries, show-all-diary-entries | |
604 | ||
041d709f CY |
605 | ** CC Mode (C, C++, etc.) |
606 | ||
607 | *** New feature to "guess" the style in an existing buffer. | |
608 | ||
609 | ** comint and modes derived from it use the generic completion code. | |
610 | ||
611 | ** Compilation mode | |
612 | ||
613 | *** Compilation mode can be used without font-lock-mode. | |
614 | `compilation-parse-errors-function' is now obsolete. | |
615 | ||
616 | *** `compilation-filter-start' is let-bound to the start of the text | |
617 | inserted by the compilation filter function, when calling | |
618 | compilation-filter-hook. | |
619 | ||
52834b6b CY |
620 | ** Customize |
621 | ||
622 | *** Customize buffers now contain a search field. | |
623 | The search is performed using `customize-apropos'. | |
42d9cffa | 624 | To turn off the search field, set custom-search-field to nil. |
52834b6b CY |
625 | |
626 | *** Custom options now start out hidden if at their default values. | |
627 | Use the arrow to the left of the option name to toggle visibility. | |
628 | ||
629 | *** custom-buffer-sort-alphabetically now defaults to t. | |
630 | ||
631 | *** The color widget now has a "Choose" button, which allows you to | |
632 | choose a color via list-colors-display. | |
633 | ||
041d709f CY |
634 | ** D-Bus |
635 | ||
636 | *** It is possible now, to access alternative buses than the default | |
637 | system or session bus. | |
638 | ||
639 | *** dbus-register-{service,method,property} | |
640 | The -method and -property functions do not automatically register | |
641 | names anymore. | |
642 | ||
643 | The new function dbus-register-service registers a service known name | |
644 | on a D-Bus without simultaneously registering a property or a method. | |
645 | ||
f5d6548a JL |
646 | ** Dired-x |
647 | ||
648 | *** dired-jump and dired-jump-other-window called with a prefix argument | |
649 | read a file name from the minibuffer instead of using buffer-file-name. | |
650 | ||
817b48a7 GM |
651 | +++ |
652 | *** The `dired local variables' feature provided by Dired-x is obsolete. | |
653 | The standard directory local variables feature replaces it. | |
8117868f | 654 | |
041d709f | 655 | ** ERC changes |
7492acc9 | 656 | |
041d709f CY |
657 | *** New vars `erc-autojoin-timing' and `erc-autojoin-delay'. |
658 | If the value of `erc-autojoin-timing' is 'ident, ERC autojoins after a | |
659 | successful NickServ identification, or after `erc-autojoin-delay' | |
660 | seconds. The default value, 'ident, means to autojoin immediately | |
661 | after connecting. | |
662 | ||
663 | *** New variable `erc-coding-system-precedence': If we use `undecided' | |
664 | as the server coding system, this variable will then be consulted. | |
665 | The default is to decode strings that can be decoded as utf-8 as | |
666 | utf-8, and do the normal `undecided' decoding for the rest. | |
7492acc9 | 667 | |
041d709f | 668 | ** Eshell changes |
7492acc9 | 669 | |
041d709f CY |
670 | *** The default value of eshell-directory-name is a directory named |
671 | "eshell" in `user-emacs-directory'. If the old "~/.eshell/" directory | |
672 | exists, that is used instead. | |
673 | ||
674 | ** gdb-mi | |
675 | ||
676 | *** GDB User Interface migrated to GDB Machine Interface and now | |
677 | supports multithread non-stop debugging and debugging of several | |
678 | threads simultaneously. | |
679 | ||
680 | ** In ido-mode, C-v is no longer bound to ido-toggle-vc. | |
681 | The reason is that this interferes with cua-mode. | |
7492acc9 | 682 | |
18af70d0 CY |
683 | ** Image mode |
684 | ||
685 | *** RET (`image-toggle-animation') toggles animation, if the displayed | |
686 | image can be animated. | |
687 | ||
688 | *** Option `image-animate-loop', if non-nil, loops the animation. | |
689 | If nil, `image-toggle-animation' plays the animation once. | |
690 | ||
041d709f | 691 | ** Info |
723ee192 | 692 | |
041d709f CY |
693 | *** New command `info-display-manual' displays an Info manual |
694 | specified by its name. If that manual is already visited in some Info | |
695 | buffer within the current session, the command will display that | |
696 | buffer. Otherwise, it will load the manual and display it. This is | |
697 | handy if you have many manuals in many Info buffers, and don't | |
698 | remember the name of the buffer visiting the manual you want to | |
699 | consult. | |
691cf4a0 | 700 | |
041d709f | 701 | ** The Landmark game is now invoked with `landmark', not `lm'. |
691cf4a0 | 702 | |
c78268f1 | 703 | ** MH-E has been upgraded to MH-E version 8.3. |
041d709f | 704 | See MH-E-NEWS for details. |
37221432 | 705 | |
041d709f | 706 | ** Modula-2 mode provides auto-indentation. |
37221432 | 707 | |
041d709f | 708 | ** mpc.el: Can use pseudo tags of the form tag1|tag2 as a union of two tags. |
3c3d4f5b | 709 | |
041d709f CY |
710 | ** Prolog mode has been completely revamped, with lots of additional |
711 | functionality such as more intelligent indentation, electricity, support for | |
712 | more variants, including Mercury, and a lot more. | |
713 | ||
714 | ** Rmail | |
715 | ||
716 | *** The command `rmail-epa-decrypt' decrypts OpenPGP data | |
717 | in the Rmail incoming message. | |
718 | ||
719 | ** shell-mode can track your cwd by reading it from your prompt. | |
720 | Just set shell-dir-cookie-re to an appropriate regexp. | |
721 | ||
ddb54206 | 722 | --- |
041d709f CY |
723 | ** SQL Mode enhancements. |
724 | ||
725 | *** `sql-dialect' is an alias for `sql-product'. | |
726 | ||
727 | *** New variable `sql-port' specifies the port number for connecting | |
728 | to a MySQL or Postgres server. | |
729 | ||
730 | *** The command `sql-product-interactive' now takes a prefix argument, | |
731 | which causes it to prompt for an SQL product instead of the current | |
732 | value of `sql-product'. | |
733 | ||
734 | *** Product-specific SQL interactive commands now take prefix args. | |
735 | These commands (`sql-sqlite', `sql-postgres', `sql-mysql', etc.), | |
736 | given a prefix argument, prompt for a name for the SQL interactive | |
737 | buffer. This reduces the need for calling `sql-rename-buffer'. | |
738 | ||
739 | *** SQL interactive modes suppress command continuation prompts, and | |
740 | replace tabs with spaces. The first change impacts multiple line SQL | |
741 | statements entered with C-j between each line, statements yanked into | |
742 | the buffer and statements sent with `sql-send-*' functions. The | |
743 | second change prevents the MySQL and Postgres interpreters from | |
744 | listing object name completions when sent text via `sql-send-*' | |
745 | functions. | |
746 | ||
747 | *** New custom variables control prompting for login parameters. | |
748 | Each supported product has a custom variable `sql-*-login-params', | |
749 | which is a list of the parameters to be prompted for before a | |
750 | connection is established. | |
751 | ||
752 | *** New variable `sql-connection-alist' for login parameter values. | |
753 | This can be used to store different username, database and server | |
754 | values. Connections defined in this variable appear in the submenu | |
755 | SQL->Start... for making new SQLi sessions. | |
756 | ||
757 | *** New command `sql-connect' starts a predefined SQLi session, | |
758 | using the login parameters from `sql-connection-alist'. | |
759 | ||
760 | *** New "Save Connection" menu item in SQLi buffers. | |
761 | This gathers the login params specified for the SQLi session, if it | |
762 | was not started by a connection, and saves them as a new connection. | |
763 | ||
764 | *** Commands for listing database objects and details. | |
765 | In an SQLi session, you can get a list of objects in the database. | |
766 | The contents of these lists are product specific. | |
767 | ||
768 | **** `C-c C-l a' or the "SQL->List all objects" menu item | |
769 | lists all the objects in the database. With a prefix argument, it | |
770 | displays additional details or extend the listing to include other | |
771 | schemas objects. | |
772 | ||
773 | **** `C-c C-l t' or the "SQL->List Table details" menu item | |
774 | prompts for the name of a database table or view and displays the list | |
775 | of columns in the relation. With a prefix argument, it displays | |
776 | additional details about each column. | |
777 | ||
778 | *** New options `sql-send-terminator' and `sql-oracle-scan-on'. | |
779 | ||
780 | *** An API for manipulating SQL product definitions has been added. | |
781 | ||
782 | ** TeX modes | |
783 | ||
784 | *** latex-electric-env-pair-mode keeps \begin..\end matched on the fly. | |
412b9ee5 | 785 | |
459bba37 MA |
786 | ** Tramp |
787 | ||
a808d31f MA |
788 | *** There exists a new inline access method "ksu" (kerberized su). |
789 | ||
459bba37 | 790 | *** The following access methods are discontinued: "ssh1_old", |
ea843702 | 791 | "ssh2_old", "scp1_old", "scp2_old", "imap", "imaps" and "fish". |
459bba37 | 792 | |
58f74fe4 MA |
793 | *** The option `ange-ftp-binary-file-name-regexp' has changed its |
794 | default value to "". | |
795 | ||
041d709f CY |
796 | ** `url-queue-retrieve' downloads web pages asynchronously, but allow |
797 | controlling the degree of parallelism. | |
177549d0 | 798 | |
0c32ce32 CY |
799 | ** VC and related modes |
800 | ||
801 | *** Support for pulling on distributed version control systems. | |
659114fd | 802 | The vc-pull command runs a "pull" operation, if it is supported. |
0c32ce32 | 803 | This updates the current branch from upstream. A prefix argument |
659114fd | 804 | means to prompt the user for specifics, e.g. a pull location. |
0c32ce32 | 805 | |
7d93eca9 | 806 | **** `vc-update' is now an alias for `vc-pull'. |
0c32ce32 | 807 | |
659114fd | 808 | **** Currently supported by Bzr, Git, and Mercurial. |
0c32ce32 CY |
809 | |
810 | *** Support for merging on distributed version control systems. | |
811 | The vc-merge command now runs a "merge" operation, if it is supported. | |
659114fd CY |
812 | This merges another branch into the current one. This command prompts |
813 | the user for specifics, e.g. a merge source. | |
0c32ce32 | 814 | |
33f6cf7b | 815 | **** Currently supported for Bzr, Git, and Mercurial. |
0c32ce32 | 816 | |
2afef60a | 817 | *** New option `vc-revert-show-diff' controls whether `vc-revert' |
bbe43420 | 818 | shows a diff while querying the user. It defaults to t. |
2afef60a | 819 | |
d4eb88c7 CY |
820 | *** Log entries in some Log View buffers can be toggled to display a |
821 | longer description by typing RET (log-view-toggle-entry-display). | |
822 | In the Log View buffers made by `C-x v L' (vc-print-root-log), you can | |
823 | use this to display the full log entry for the revision at point. | |
824 | ||
33f6cf7b | 825 | **** Currently supported for Bzr, Git, and Mercurial. |
d4eb88c7 CY |
826 | |
827 | **** Packages using Log View mode can enable this functionality by | |
828 | binding `log-view-expanded-log-entry-function' to a suitable function. | |
829 | ||
1c6c854e CS |
830 | *** New command `vc-ediff' allows visual comparison of two revisions |
831 | of a file similar to `vc-diff', but using ediff backend. | |
832 | ||
041d709f | 833 | ** FIXME: xdg-open for browse-url and reportbug, 2010/08. |
ca5eed61 | 834 | |
041d709f CY |
835 | ** Obsolete modes |
836 | ||
837 | *** partial-completion-mode is obsolete. | |
838 | You can get a comparable behavior with: | |
839 | (setq completion-styles '(partial-completion initials)) | |
840 | (setq completion-pcm-complete-word-inserts-delimiters t) | |
841 | ||
842 | *** pc-mode.el is obsolete. | |
843 | ||
844 | *** sregex.el is obsolete, since rx.el is a strict superset. | |
845 | ||
846 | *** s-region.el and pc-select are obsolete. | |
847 | They are superseded by shift-select-mode enabled by default in 23.1. | |
ca5eed61 | 848 | |
0fe719e6 GM |
849 | ** Miscellaneous |
850 | ||
9f678528 GM |
851 | +++ |
852 | *** f90.el has some support for Fortran 2008 syntax. | |
853 | ||
0fe719e6 GM |
854 | --- |
855 | *** `copyright-fix-years' can optionally convert consecutive years to ranges. | |
856 | ||
5b3e6db8 GM |
857 | *** New command `nato-region' converts text to NATO phonetic alphabet. |
858 | ||
eb199145 GM |
859 | \f |
860 | * New Modes and Packages in Emacs 24.1 | |
d445b3f8 | 861 | |
60e56523 | 862 | ** Occur Edit mode applies edits made in *Occur* buffers to the |
8c0f49f0 | 863 | original buffers. It is bound to "e" in Occur mode. |
60e56523 | 864 | |
7100ff98 SM |
865 | ** New global minor modes electric-pair-mode, electric-indent-mode, |
866 | and electric-layout-mode. | |
3b843809 | 867 | |
a83ec3c9 CY |
868 | ** tabulated-list.el provides a generic major mode for tabulated data, |
869 | from which other modes can be derived. | |
870 | ||
d02c9bcd SM |
871 | ** pcase.el provides the ML-style pattern matching macro `pcase'. |
872 | ||
7725ebb7 MA |
873 | ** secrets.el is an implementation of the Secret Service API, an |
874 | interface to password managers like GNOME Keyring or KDE Wallet. The | |
065f2743 MA |
875 | Secret Service API requires D-Bus for communication. The command |
876 | `secrets-show-secrets' offers a buffer with a visualization of the | |
877 | secrets. | |
7725ebb7 | 878 | |
f9e78150 MA |
879 | ** notifications.el provides an implementation of the Desktop |
880 | Notifications API. It requires D-Bus for communication. | |
881 | ||
12fe5bcc MA |
882 | ** soap-client.el supports access to SOAP web services from Emacs. |
883 | soap-inspect.el is an interactive inspector for SOAP WSDL structures. | |
884 | ||
ad7d6ecb GM |
885 | ** xmodmap-generic-mode for xmodmap files. |
886 | ||
53bbe3ad JB |
887 | ** New emacs-lock.el package. |
888 | (The pre-existing one has been renamed to old-emacs-lock.el and moved | |
889 | to obsolete/.) Now, Emacs Lock is a proper minor mode | |
890 | `emacs-lock-mode'. Protection against exiting Emacs and killing the | |
891 | buffer can be set separately. The mechanism for auto turning off | |
892 | protection for buffers with inferior processes has been generalized. | |
893 | ||
eb199145 GM |
894 | \f |
895 | * Incompatible Lisp Changes in Emacs 24.1 | |
6dfcbe31 | 896 | |
fa6996bc EZ |
897 | --- |
898 | ** `char-direction-table' and the associated function `char-direction' | |
899 | were deleted. They were buggy and inferior to the new support of | |
900 | bidirectional editing introduced in Emacs 24. If you need the | |
901 | bidirectional properties of a character, use `get-char-code-property' | |
902 | with the last argument `bidi-class'. | |
903 | ||
a6326082 | 904 | +++ |
470d996d TV |
905 | ** `copy-directory' now copies the source directory as a subdirectory |
906 | of the target directory, if the latter is an existing directory. The | |
907 | new optional arg COPY-CONTENTS, if non-nil, makes the function copy | |
908 | the contents directly into a pre-existing target directory. | |
909 | ||
25ca2e61 CY |
910 | ** `compose-mail' now accepts an optional 8th arg, RETURN-ACTION, and |
911 | passes it to the mail user agent function. This argument specifies an | |
912 | action for returning to the caller after finishing with the mail. | |
913 | This is currently used by Rmail to delete a mail window. | |
914 | ||
9173a8fb CY |
915 | ** For mouse click input events in the text area, the Y pixel |
916 | coordinate in the POSITION list now counts from the top of the text | |
917 | area, excluding any header line. Previously, it counted from the top | |
918 | of the header line. | |
919 | ||
ddb54206 | 920 | ** Removed obsolete name `e' (use `float-e' instead). |
c4d17d50 | 921 | |
288cf4e9 SM |
922 | ** A backquote not followed by a space is now always treated as new-style. |
923 | ||
fd5c9dfa | 924 | ** Test for special mode-class was moved from view-file to view-buffer. |
288cf4e9 SM |
925 | FIXME: This only says what was changed, but not what are the |
926 | programmer-visible consequences. | |
fd5c9dfa | 927 | |
3b7e1d5f | 928 | ** Passing a nil argument to a minor mode function now turns the mode |
0a19a6f8 | 929 | ON unconditionally. |
6431f2e6 | 930 | |
ddb54206 | 931 | +++ |
6431f2e6 | 932 | ** During startup, Emacs no longer adds entries for `menu-bar-lines' |
0a19a6f8 JB |
933 | and `tool-bar-lines' to `default-frame-alist' and `initial-frame-alist'. |
934 | With these alist entries omitted, `make-frame' checks the value of the | |
935 | variable `menu-bar-mode'/`tool-bar-mode' to determine whether to create | |
936 | a menu-bar or tool-bar, respectively. If the alist entries are added, | |
937 | they override the value of `menu-bar-mode'/`tool-bar-mode'. | |
6431f2e6 | 938 | |
fe0aa820 CY |
939 | ** Regions created by mouse dragging are now normal active regions, |
940 | similar to the ones created by shift-selection. In previous Emacs | |
941 | versions, these regions were delineated by `mouse-drag-overlay', which | |
942 | has now been removed. | |
d6d8ee7a | 943 | |
4583e796 GM |
944 | ** cl.el no longer provides `cl-19'. |
945 | ||
041d709f | 946 | ** The following obsolete functions and aliases were removed: |
3226d6ca GM |
947 | comint-kill-output, decompose-composite-char, outline-visible, |
948 | internal-find-face, internal-get-face, frame-update-faces, | |
949 | frame-update-face-colors, x-frob-font-weight, x-frob-font-slant, | |
950 | x-make-font-bold, x-make-font-demibold, x-make-font-unbold | |
951 | x-make-font-italic, x-make-font-oblique, x-make-font-unitalic | |
952 | x-make-font-bold-italic, mldrag-drag-mode-line, mldrag-drag-vertical-line, | |
922ad43e GM |
953 | iswitchb-default-keybindings, char-bytes, isearch-return-char, |
954 | make-local-hook | |
3226d6ca | 955 | |
041d709f CY |
956 | ** The following obsolete variables and varaliases were removed: |
957 | checkdoc-minor-keymap, vc-header-alist, directory-sep-char, and | |
958 | font-lock-defaults-alist. | |
3226d6ca | 959 | |
041d709f | 960 | ** The following obsolete files were removed: |
7b0e3048 GM |
961 | sc.el, x-menu.el, rnews.el, rnewspost.el |
962 | ||
33658d4e CY |
963 | ** FIXME finder-inf.el changes. |
964 | ||
eb199145 GM |
965 | \f |
966 | * Lisp changes in Emacs 24.1 | |
9097e8af | 967 | |
041d709f CY |
968 | ** Code can now use lexical scoping by default instead of dynamic scoping. |
969 | The `lexical-binding' variable lets code use lexical scoping for local | |
970 | variables. It is typically set via file-local variables, in which case it | |
971 | applies to all the code in that file. | |
972 | ||
973 | *** `eval' takes a new optional argument `lexical' to choose the new lexical | |
974 | binding instead of the old dynamic binding mode. | |
975 | ||
976 | *** Lexically scoped interpreted functions are represented with a new form | |
977 | of function value which looks like (closure ENV ARGS &rest BODY). | |
978 | ||
979 | *** New macro `letrec' to define recursive local functions. | |
980 | ||
981 | *** New function `special-variable-p' to check whether a variable is | |
982 | declared as dynamically bound. | |
983 | ||
984 | ** An Emacs Lisp testing tool is now included. | |
985 | Emacs Lisp developers can use this tool to write automated tests for | |
986 | their code. See the ERT info manual for details. | |
987 | ||
988 | ** Changes for bidirectional display and editing | |
f1816485 | 989 | |
041d709f CY |
990 | +++ |
991 | *** New function `current-bidi-paragraph-direction'. | |
f1816485 EZ |
992 | This returns the actual value of base direction of the paragraph at |
993 | point. | |
041d709f CY |
994 | |
995 | +++ | |
996 | *** New function `bidi-string-mark-left-to-right'. | |
f1816485 EZ |
997 | Given a string containing characters from right-to-left (RTL) scripts, |
998 | this function returns another string which can be safely inserted into | |
999 | a buffer, such that any following text will be always displayed to the | |
1000 | right of that string. (This works by appending the Unicode | |
1001 | "LEFT-TO-RIGHT MARK" character when the argument string might need that.) | |
041d709f CY |
1002 | |
1003 | This is useful when the buffer has overall left-to-right (LTR) | |
1004 | paragraph direction and you need to insert a string whose contents and | |
f1816485 EZ |
1005 | directionality are not known in advance, without disrupting the layout |
1006 | of the line. | |
041d709f | 1007 | |
bee0fcef CY |
1008 | ** Window changes |
1009 | ||
c4682d18 MR |
1010 | +++ |
1011 | *** Window tree functions are accessible in Elisp. | |
1012 | Functions are provided to return the parent, siblings or child windows | |
1013 | of any window including internal windows (windows not associated with a | |
1014 | buffer) in the window tree. | |
1015 | ||
1016 | +++ | |
1017 | *** Window manipulation can deal with internal windows. | |
1018 | Many window handling functions like `split-window', `delete-window', or | |
1019 | `delete-other-windows' as well as the window resizing functions can now | |
1020 | act on any window including internal ones. | |
1021 | ||
1022 | +++ | |
1023 | *** window-total-height/-width vs window-body-height/-width. | |
1024 | The function `window-height' has been renamed to `window-total-height' | |
1025 | and `window-width' has been renamed to `window-body-width'. The old | |
1026 | names are provided as aliases. Two new functions `window-total-width' | |
1027 | and `window-body-height' are provided. | |
1028 | ||
1029 | +++ | |
1030 | *** Window parameters specific to window handling functions. | |
1031 | For each window you can specify a parameter to override the default | |
1032 | behavior of a number of functions like `split-window', `delete-window' | |
1033 | and `delete-other-windows'. | |
1034 | ||
1035 | +++ | |
1036 | *** New semantics of third argument of `split-window'. | |
1037 | ||
1038 | The third argument of `split-window' has been renamed to SIDE and can be | |
1039 | set to any of the values 'below, 'right, 'above, or 'left to make the | |
1040 | new window appear on the corresponding side of the window that shall be | |
1041 | split. Any other value of SIDE will cause `split-window' to split the | |
1042 | window into two side-by-side windows as before. | |
1043 | ||
c4682d18 MR |
1044 | +++ |
1045 | *** `split-window-above-each-other' and `split-window-side-by-side'. | |
1046 | The commands `split-window-vertically' and `split-window-horizontally' | |
1047 | have been renamed to `split-window-above-each-other' and | |
1048 | `split-window-side-by-side' respectively. The old names are provided as | |
1049 | aliases. | |
1050 | ||
1051 | +++ | |
1052 | *** Window resizing functions. | |
1053 | A new standard function for resizing windows called `resize-window' has | |
1054 | been introduced. This and all other functions for resizing windows no | |
1055 | longer delete any windows when they become too small. | |
1056 | ||
c4682d18 MR |
1057 | +++ |
1058 | *** `adjust-window-trailing-edge' adjustments. | |
1059 | `adjust-window-trailing-edge' can now deal with fixed-size windows and | |
1060 | is able to resize other windows if a window adjacent to the trailing | |
1061 | edge cannot be shrunk any more. This makes its behavior more similar to | |
1062 | that of Emacs 21 without compromising, however, its inability to delete | |
1063 | windows which was introduced in Emacs 22. | |
1064 | ||
c4682d18 MR |
1065 | +++ |
1066 | *** Window-local buffer lists. | |
1067 | Windows now have local buffer lists. This means that removing a buffer | |
1068 | from display in a window will preferably show the buffer previously | |
1069 | shown in that window with its previous window-start and window-point | |
1070 | positions. This also means that the same buffer may be automatically | |
1071 | shown twice even if it already appears in another window. | |
1072 | ||
bee0fcef CY |
1073 | *** `switch-to-buffer' has a new optional argument FORCE-SAME-WINDOW, |
1074 | which if non-nil requires the buffer to be displayed in the currently | |
1075 | selected window, signaling an error otherwise. If nil, another window | |
1076 | can be used, e.g. if the selected one is strongly dedicated. | |
1077 | ||
0a2132ba CY |
1078 | *** `split-window-vertically' and `split-window-horizontally' renamed |
1079 | to `split-window-above-each-other' and `split-window-side-by-side' | |
1080 | respectively. The old names are kept as aliases. | |
1081 | ||
1082 | *** Display actions | |
1083 | ||
1084 | **** The second arg to `display-buffer' and `pop-to-buffer' is now | |
1085 | named ACTION, and takes a display action of the same form as | |
1086 | `display-buffer-base-action' (see Changes, above). A non-nil, | |
1087 | non-list value is treated specially, as the old meaning. | |
1088 | ||
1089 | **** New variable `display-buffer-overriding-action'. | |
1090 | ||
1091 | **** The procedure of `display-buffer' etc. to choose a window is | |
1092 | determined by combining `display-buffer-overriding-action', | |
1093 | `display-buffer-alist', the ACTION arg, `display-buffer-base-action', | |
1094 | and `display-buffer-fallback-action'. The second and fourth of these | |
1095 | are user-customizable variables. | |
1096 | ||
1097 | See the docstring of `display-buffer' for details. | |
bee0fcef | 1098 | |
a2a25d24 | 1099 | ** Completion |
041d709f | 1100 | |
a2a25d24 SM |
1101 | *** New variable completion-extra-properties used to specify extra properties |
1102 | of the current completion: | |
1103 | - :annotate-function, same as the old completion-annotate-function. | |
1104 | - :exit-function, function to call after completion took place. | |
1105 | ||
1106 | *** Functions on completion-at-point-functions can return any of the properties | |
1107 | valid for completion-extra-properties. | |
1108 | ||
1109 | *** completion-annotate-function is obsolete. | |
1110 | ||
620c53a6 SM |
1111 | *** New `metadata' method for completion tables. The metadata thus returned |
1112 | can specify various details of the data returned by `all-completions': | |
1113 | - `category' is the kind of objects returned (e.g., `buffer', `file', ...), | |
1114 | used to select a style in completion-category-overrides. | |
1115 | - `annotation-function' to add annotations in *Completions*. | |
1116 | - `display-sort-function' to specify how to sort entries in *Completions*. | |
1117 | - `cycle-sort-function' to specify how to sort entries when cycling. | |
1118 | ||
f042970d | 1119 | ** `glyphless-char-display' can now distinguish between graphical and |
16a43933 CY |
1120 | text terminal display, via a char-table entry that is a cons cell. |
1121 | ||
da91b5f2 CY |
1122 | ** `open-network-stream' can now be used to open an encrypted stream. |
1123 | It now accepts an optional `:type' parameter for initiating a TLS | |
1124 | connection, directly or via STARTTLS. To do STARTTLS, additional | |
1125 | parameters (`:end-of-command', `:success', `:capabilities-command') | |
1126 | must also be supplied. | |
1127 | ||
ddb54206 | 1128 | +++ |
f6d62986 SM |
1129 | ** pre/post-command-hook are not reset to nil upon error. |
1130 | Instead, the offending function is removed. | |
1131 | ||
1132 | ** New low-level function run-hook-wrapped. | |
1133 | ||
7deebf1b LMI |
1134 | ** `server-eval-at' is provided to allow evaluating forms on different |
1135 | Emacs server instances. | |
1136 | ||
1137 | ** `call-process' allows a `(:file "file")' spec to redirect STDOUT to | |
1138 | a file. | |
1139 | ||
04e2ce72 CY |
1140 | --- |
1141 | ** Variable `stack-trace-on-error' removed. | |
e7f7fbaa SM |
1142 | Also the debugger can now "continue" from an error, which means it will jump |
1143 | to the error handler as if the debugger had not been invoked instead of | |
1144 | jumping all the way to the top-level. | |
1145 | ||
3ef01959 CY |
1146 | ** New function `read-char-choice' reads a restricted set of characters, |
1147 | discarding any inputs not inside the set. | |
1148 | ||
2e288d54 JB |
1149 | ** `image-library-alist' is renamed to `dynamic-library-alist'. |
1150 | The variable is now used to load all kind of supported dynamic libraries, | |
1151 | not just image libraries. The previous name is still available as an | |
1152 | obsolete alias. | |
1153 | ||
04e2ce72 CY |
1154 | ** New variable `syntax-propertize-function'. |
1155 | This replaces `font-lock-syntactic-keywords' which is now obsolete. | |
cf38dd42 SM |
1156 | This allows syntax-table properties to be set independently from font-lock: |
1157 | just call syntax-propertize to make sure the text is propertized. | |
1158 | Together with this new variable come a new hook | |
1159 | syntax-propertize-extend-region-functions, as well as two helper functions: | |
1160 | syntax-propertize-via-font-lock to reuse old font-lock-syntactic-keywords | |
1161 | as-is; and syntax-propertize-rules which provides a new way to specify | |
1162 | syntactic rules. | |
1163 | ||
a2e5caf7 SM |
1164 | ** New hook post-self-insert-hook run at the end of self-insert-command. |
1165 | ||
7cf78aac | 1166 | +++ |
c5683ceb | 1167 | ** Syntax tables support a new "comment style c" additionally to style b. |
041d709f | 1168 | |
4e2db1fe | 1169 | ** frame-local variables cannot be let-bound any more. |
041d709f | 1170 | |
3fd50d5c | 1171 | +++ |
10dcc561 | 1172 | ** prog-mode is a new major-mode meant to be the parent of programming mode. |
3948a513 DN |
1173 | The prog-mode-hook it defines can be used to enable features for |
1174 | programming modes. For example: | |
1175 | (add-hook 'prog-mode-hook 'flyspell-prog-mode) | |
1176 | enables on the fly spell checking for comments and strings for | |
1177 | programming modes. | |
041d709f | 1178 | |
f44379e7 SM |
1179 | ** define-minor-mode accepts a new keyword :variable. |
1180 | ||
04e2ce72 | 1181 | +++ |
b2957ea8 | 1182 | ** `delete-file' and `delete-directory' now accept optional arg TRASH. |
f1a5d776 CY |
1183 | Trashing is performed if TRASH and `delete-by-moving-to-trash' are |
1184 | both non-nil. Interactively, TRASH defaults to t, unless a prefix | |
1185 | argument is supplied (see Trash changes, above). | |
53967e09 | 1186 | |
9317e499 CY |
1187 | ** `facemenu-read-color' is now an alias for `read-color'. |
1188 | The command `read-color' now requires a match for a color name or RGB | |
1189 | triplet, instead of signalling an error if the user provides a invalid | |
1190 | input. | |
1191 | ||
4039c786 CY |
1192 | ** Tool-bars can display separators. |
1193 | Tool-bar separators are handled like menu separators in menu-bar maps, | |
94975270 | 1194 | i.e. via menu entries of the form `(menu-item "--")'. |
9317e499 | 1195 | |
00fe2df1 JL |
1196 | ** Image API |
1197 | ||
18af70d0 CY |
1198 | *** Animated images support (currently animated gifs only). |
1199 | ||
1200 | **** `image-animated-p' returns non-nil if an image can be animated. | |
1201 | ||
1202 | **** `image-animate' animates a supplied image spec. | |
1203 | ||
1204 | **** `image-animate-timer' returns the timer object for an image that | |
1205 | is being animated. | |
00fe2df1 | 1206 | |
1546c559 JL |
1207 | *** `image-extension-data' is renamed to `image-metadata'. |
1208 | ||
041d709f CY |
1209 | *** If Emacs is compiled with ImageMagick support (see Startup |
1210 | Changes), the function `imagemagick-types' returns a list of image | |
1211 | file extensions that your installation of ImageMagick supports. The | |
1212 | function `imagemagick-register-types' enables ImageMagick support for | |
1213 | these image types, minus those listed in `imagemagick-types-inhibit'. | |
1214 | ||
1215 | See the Emacs Lisp Reference Manual for more information. | |
1216 | ||
71c17aec LMI |
1217 | ** XML and HTML parsing |
1218 | ||
1219 | *** If Emacs is compiled with libxml2 support (which is the default), | |
4b9832a6 | 1220 | two new Emacs Lisp-level functions are defined: |
84156e94 MA |
1221 | `libxml-parse-html-region' (which will parse "real world" HTML) |
1222 | and `libxml-parse-xml-region' (which parses XML). Both return an | |
4b9832a6 CY |
1223 | Emacs Lisp parse tree. |
1224 | ||
1225 | FIXME: These should be front-ended by xml.el. | |
1226 | ||
e2574f2c TZ |
1227 | ** GnuTLS |
1228 | ||
1229 | *** Emacs can be compiled with libgnutls support | |
1230 | This is the default. You will then be able to use the functionality | |
1231 | in gnutls.el, namely the `open-gnutls-stream' and `gnutls-negotiate' | |
1232 | functions. It's easiest to use these functions through | |
1233 | `open-network-stream' because it can upgrade connections through | |
1234 | STARTTLS opportunistically or use plain SSL, depending on your needs. | |
1235 | ||
1236 | Only versions 2.8.x and higher or GnuTLS have been tested. | |
1237 | ||
1238 | *** gnutls-log-level | |
1239 | Set `gnutls-log-level' higher than 0 to get debug output. 1 is for | |
1240 | important messages, 2 is for debug data, and higher numbers are as per | |
1241 | the GnuTLS logging conventions. The output is in *Messages*. | |
71c17aec | 1242 | |
a6020335 MH |
1243 | ** Isearch |
1244 | ||
1245 | *** New hook `isearch-update-post-hook' that runs in `isearch-update'. | |
1246 | ||
ddb54206 | 1247 | +++ |
9326ba26 CY |
1248 | ** Progress reporters can now "spin". |
1249 | The MIN-VALUE and MAX-VALUE arguments of `make-progress-reporter' can | |
1250 | now be nil, or omitted. This makes a "non-numeric" reporter. Each | |
1251 | time you call `progress-reporter-update' on that progress reporter, | |
1252 | with a nil or omitted VALUE argument, the reporter message is | |
1253 | displayed with a "spinning bar". | |
1254 | ||
3e214b50 JB |
1255 | ** New variable `revert-buffer-in-progress-p' is true while a buffer is |
1256 | being reverted, even if the buffer has a local `revert-buffer-function'. | |
1257 | ||
638f053a JB |
1258 | ** New variables `delayed-warnings-list' and `delayed-warnings-hook' allow |
1259 | deferring warnings until the main command loop is executed. | |
1260 | ||
e145f188 GM |
1261 | +++ |
1262 | ** `set-auto-mode' now respects mode: local variables at the end of files, | |
1263 | as well as those in the -*- line. | |
1264 | ||
6420d28b CY |
1265 | --- |
1266 | ** rx.el has a new `group-n' construct for explicitly numbered groups. | |
1267 | ||
3349e122 | 1268 | ** keymaps can inherit from multiple parents. |
43dc9f5b | 1269 | |
ddb54206 | 1270 | +++ |
43dc9f5b AS |
1271 | ** New reader macro ## which stands for the empty symbol. |
1272 | This means that the empty symbol can now be read back. Also, #: by itself | |
1273 | (when not immediately followed by a possible symbol character) stands for | |
1274 | an empty uninterned symbol. | |
041d709f CY |
1275 | |
1276 | ** Obsolete functions and variables | |
1277 | ||
1278 | *** buffer-substring-filters is obsolete. | |
1279 | Use `filter-buffer-substring-functions' instead. | |
1280 | ||
1281 | *** `byte-compile-disable-print-circle' is obsolete. | |
1282 | ||
1283 | *** `deferred-action-list' and `deferred-action-function' are obsolete. | |
1284 | ||
eb199145 GM |
1285 | \f |
1286 | * Changes in Emacs 24.1 on non-free operating systems | |
d53a60a6 | 1287 | |
0a19a6f8 | 1288 | ** New configure.bat option --enable-checking builds Emacs with extra |
04779484 JB |
1289 | runtime checks. |
1290 | ||
e3aef5c6 | 1291 | ** New configure.bat option --distfiles to specify files to be |
0a19a6f8 | 1292 | included in binary distribution. |
e3aef5c6 | 1293 | |
e2574f2c TZ |
1294 | ** New configure.bat option --without-gnutls to disable automatic |
1295 | GnuTLS detection. | |
1296 | ||
1297 | ** New configure.bat option --lib for general library linkage, works | |
1298 | with the USER_LIBS build variable. | |
1299 | ||
0a19a6f8 | 1300 | ** New make target `dist' to create binary distribution for MS Windows. |
e3aef5c6 | 1301 | |
04e2ce72 CY |
1302 | ** On Nextstep/OSX, the menu bar can be hidden by customizing |
1303 | ns-auto-hide-menu-bar. | |
1304 | ||
05197f40 | 1305 | \f |
a933dad1 | 1306 | ---------------------------------------------------------------------- |
5b87ad55 | 1307 | This file is part of GNU Emacs. |
a933dad1 | 1308 | |
ab73e885 | 1309 | GNU Emacs is free software: you can redistribute it and/or modify |
5b87ad55 | 1310 | it under the terms of the GNU General Public License as published by |
ab73e885 GM |
1311 | the Free Software Foundation, either version 3 of the License, or |
1312 | (at your option) any later version. | |
5b87ad55 GM |
1313 | |
1314 | GNU Emacs is distributed in the hope that it will be useful, | |
1315 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
1316 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
1317 | GNU General Public License for more details. | |
a933dad1 | 1318 | |
5b87ad55 | 1319 | You should have received a copy of the GNU General Public License |
ab73e885 | 1320 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
a933dad1 | 1321 | |
05197f40 | 1322 | \f |
a933dad1 DL |
1323 | Local variables: |
1324 | mode: outline | |
1325 | paragraph-separate: "[ \f]*$" | |
1326 | end: |