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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 | ||
d9170db5 DN |
46 | ** There is a new configure option --enable-use-lisp-union-type. |
47 | This is only useful for Emacs developers to debug certain types of bugs. | |
b2957ea8 | 48 | This is not a new feature; only the configure flag is new. |
d9170db5 | 49 | |
81eafe29 PE |
50 | ** There is a new configure option --with-wide-int. |
51 | With it, Emacs integers typically have 62 bits, even on 32-bit machines. | |
52 | ||
d064e6a6 | 53 | --- |
f042970d | 54 | ** New translation of the Emacs Tutorial in Hebrew is available. |
d064e6a6 EZ |
55 | Type `C-u C-h t' to choose it in case your language setup doesn't |
56 | automatically select it. | |
57 | ||
0bfd685e | 58 | \f |
eb199145 | 59 | * Startup Changes in Emacs 24.1 |
4a263588 | 60 | |
198a7a97 | 61 | ** The --unibyte, --multibyte, --no-multibyte, and --no-unibyte |
adbf62ff GM |
62 | command line arguments, and the EMACS_UNIBYTE environment variable, no |
63 | longer have any effect. (They were declared obsolete in Emacs 23.) | |
198a7a97 | 64 | |
66b7b0fe GM |
65 | ** New command line option `--no-site-lisp' removes site-lisp directories |
66 | from load-path. -Q now implies this. | |
67 | ||
71edd0ec JB |
68 | ** On Windows, Emacs now warns when the obsolete _emacs init file is used, |
69 | and also when HOME is set to C:\ by default. | |
8a05b668 | 70 | |
0bfd685e | 71 | \f |
eb199145 | 72 | * Changes in Emacs 24.1 |
7841339b | 73 | |
fd6fa53f SM |
74 | ** The inactive minibuffer has its own major mode `minibuffer-inactive-mode'. |
75 | This is handy for minibuffer-only frames, and is also used for the "mouse-1 | |
76 | pops up *Messages*" feature, which can now easily be changed. | |
77 | ||
2a847524 CY |
78 | ** emacsclient changes |
79 | ||
80 | *** New emacsclient argument --parent-id ID can be used to open a | |
0191e222 CY |
81 | client frame in parent X window ID, via XEmbed. This works like the |
82 | --parent-id argument to Emacs. | |
83 | ||
15a7a774 | 84 | +++ |
d862b746 GM |
85 | *** New emacsclient argument -q/--quiet suppresses some status messages. |
86 | ||
2a847524 CY |
87 | *** If emacsclient shuts down as a result of Emacs signalling an |
88 | error, its exit status is 1. | |
89 | ||
a2a25d24 | 90 | ** Completion |
e17d9003 SM |
91 | *** shell-mode uses pcomplete rules, with the standard completion UI. |
92 | ||
a2a25d24 SM |
93 | *** Many packages have been changed to use completion-at-point rather than |
94 | their own completion code. | |
95 | ||
96 | *** Completion in a non-minibuffer now tries to detect the end of completion | |
97 | and pops down the *Completions* buffer accordingly. | |
98 | ||
99 | *** Completion can cycle, depending on completion-cycle-threshold. | |
902a6d8d | 100 | |
a2a25d24 SM |
101 | *** New completion style `substring'. |
102 | ||
620c53a6 SM |
103 | *** Completion style can be set per-category `completion-category-overrides'. |
104 | ||
105 | *** Completion of buffers now uses substring completion by default. | |
106 | ||
a2a25d24 | 107 | *** `completing-read' can be customized using the new variable |
f042970d | 108 | `completing-read-function'. |
3ec03f7e | 109 | |
2372f278 SM |
110 | ** auto-mode-case-fold is now enabled by default. |
111 | ||
d0ce9f8c MB |
112 | ** Internationalization changes |
113 | ||
f4b6ba46 | 114 | +++ |
d0ce9f8c | 115 | *** Emacs now supports display and editing of bidirectional text. |
f4b6ba46 EZ |
116 | |
117 | See the node "Bidirectional Editing" in the Emacs Manual for some | |
118 | initial documentation. | |
119 | ||
120 | To turn this on in any given buffer, set the buffer-local variable | |
121 | `bidi-display-reordering' to a non-nil value. The default is nil. | |
122 | ||
123 | The buffer-local variable `bidi-paragraph-direction', if non-nil, | |
124 | forces each paragraph in the buffer to have its base direction | |
125 | according to the value of this variable. Possible values are | |
126 | `right-to-left' and `left-to-right'. If the value is nil (the | |
127 | default), Emacs determines the base direction of each paragraph from | |
128 | its text, as specified by the Unicode Bidirectional Algorithm. | |
129 | ||
d20e1419 EZ |
130 | The function `current-bidi-paragraph-direction' returns the actual |
131 | value of paragraph base direction at point. | |
132 | ||
f4b6ba46 EZ |
133 | Reordering of bidirectional text for display in Emacs is a "Full |
134 | bidirectionality" class implementation of the Unicode Bidirectional | |
135 | Algorithm. | |
136 | ||
46759717 EZ |
137 | Note that some advanced display features, such as overlay strings and |
138 | `display' text properties, do not yet work correctly when | |
139 | bidirectional text is reordered for display. | |
140 | ||
d0ce9f8c MB |
141 | +++ |
142 | *** Enhanced support for characters that have no glyphs in available fonts. | |
143 | If a character has no glyphs in any of the available fonts, Emacs by | |
144 | default will display it either as a hexadecimal code in a box or as a | |
145 | thin 1-pixel space. In addition to these two methods, Emacs can | |
146 | display these characters as empty box, as an acronym, or not display | |
147 | them at all. To change how these characters are displayed, customize | |
148 | the variable `glyphless-char-display-control'. | |
149 | ||
150 | On character terminals these methods are used for characters that | |
151 | cannot be encoded by the `terminal-coding-system'. | |
152 | ||
153 | *** There are two new input methods for Persian/Farsi: farsi and farsi-translit. | |
154 | ||
303500aa | 155 | ** GTK scroll-bars are now placed on the right by default. |
52834b6b CY |
156 | Use `set-scroll-bar-mode' to change this. |
157 | ||
20fe03ad | 158 | ** GTK tool bars can have just text, just images or images and text. |
d8004abe | 159 | Customize `tool-bar-style' to choose style. On a Gnome desktop, the default |
20fe03ad JD |
160 | is taken from the desktop settings. |
161 | ||
8b2dd508 JD |
162 | ** GTK tool bars can be placed on the left/right or top/bottom of the frame. |
163 | The frame-parameter tool-bar-position controls this. It takes the values | |
1c0d77cc | 164 | top, left, right or bottom. The Options => Show/Hide menu has entries |
8b2dd508 JD |
165 | for this. |
166 | ||
8740c12d | 167 | ** ImageMagick support. |
b2fa3a09 GM |
168 | It is now possible to use the ImageMagick library to load many new |
169 | image formats in Emacs. By default, Emacs links with the ImageMagick | |
f5b06c35 GM |
170 | libraries if they are present at build time. This needs ImageMagick |
171 | 6.2.8 or newer (versions newer than 6.0.7 _may_ work but have not been | |
172 | tested). To disable ImageMagick support, use the configure option | |
fa6996bc | 173 | `--without-imagemagick'. |
16a91140 | 174 | |
8740c12d GM |
175 | The new function `imagemagick-types' returns a list of image file |
176 | extensions that your installation of ImageMagick supports. The | |
177 | function `imagemagick-register-types' enables ImageMagick support for | |
b2957ea8 | 178 | these image types, minus those listed in `imagemagick-types-inhibit'. |
16a91140 | 179 | |
8740c12d | 180 | See the Emacs Lisp Reference Manual for more information. |
16a91140 | 181 | |
3a46642b J |
182 | ** The colors for selected text (the region face) are taken from the GTK |
183 | theme when Emacs is built with GTK. | |
184 | ||
aa1859f5 J |
185 | ** Emacs uses GTK tooltips by default if built with GTK. You can turn that |
186 | off by customizing x-gtk-use-system-tooltips. | |
187 | ||
1ecb2d3f | 188 | ** Lucid menus and dialogs can display antialiased fonts if Emacs is built |
3928f2b6 JD |
189 | with Xft. To change font, use the X resource font, for example: |
190 | Emacs.pane.menubar.font: Courier-12 | |
99852628 | 191 | |
917794d5 | 192 | ** On graphical displays, the mode-line no longer ends in dashes. |
1dd3c2d9 CY |
193 | Also, the first dash (which does not indicate anything) is just |
194 | displayed as a space. | |
917794d5 | 195 | |
5ffb62aa | 196 | ** On Nextstep/OSX, the menu bar can be hidden by customizing |
f042970d | 197 | ns-auto-hide-menu-bar. |
5ffb62aa | 198 | |
b7d65a5f GM |
199 | ** Basic SELinux support has been added. |
200 | This requires Emacs to be linked with libselinux at build time. | |
201 | ||
d8004abe GM |
202 | *** Emacs preserves the SELinux file context when backing up, and |
203 | optionally when copying files. To this end, copy-file has an extra | |
204 | optional argument, and backup-buffer and friends include the SELinux | |
205 | context in their return values. | |
b7d65a5f GM |
206 | |
207 | *** The new functions file-selinux-context and set-file-selinux-context | |
208 | get and set the SELinux context of a file. | |
209 | ||
a5bee597 MA |
210 | *** Tramp offers handlers for file-selinux-context and set-file-selinux-context |
211 | for remote machines which support SELinux. | |
212 | ||
a4180391 PE |
213 | +++ |
214 | ** The function format-time-string now supports the %N directive, for | |
215 | higher-resolution time stamps. | |
216 | ||
9c524fcb | 217 | ** The function kill-emacs is now run upon receipt of the signals SIGTERM |
383ebd15 | 218 | and SIGHUP, and upon SIGINT in batch mode. |
9c524fcb GM |
219 | |
220 | ** kill-emacs-hook is now also run in batch mode. | |
63c72eeb GM |
221 | If you have code that adds something to kill-emacs-hook, you should |
222 | consider if it is still appropriate to add it in the noninteractive case. | |
9c524fcb | 223 | |
79ce172a | 224 | ** New scrolling commands `scroll-up-command' and `scroll-down-command' |
0a19a6f8 JB |
225 | (bound to C-v/[next] and M-v/[prior]) do not signal errors at top/bottom |
226 | of buffer at first key-press (instead move to top/bottom of buffer) | |
7b05466f | 227 | when a new variable `scroll-error-top-bottom' is non-nil. |
79ce172a | 228 | |
5a97d2da JL |
229 | ** New scrolling commands `scroll-up-line' and `scroll-down-line' |
230 | scroll a line instead of full screen. | |
231 | ||
a4b000fb | 232 | ** New property `scroll-command' should be set on a command's symbol to |
b2957ea8 | 233 | define it as a scroll command affected by `scroll-preserve-screen-position'. |
9013a7f8 | 234 | |
d0f69533 EZ |
235 | +++ |
236 | ** If you customize `scroll-conservatively' to a value greater than 100, | |
237 | Emacs will never recenter point in the window when it scrolls due to | |
238 | cursor motion commands or commands that move point (e.f., `M-g M-g'). | |
239 | Previously, you needed to use `most-positive-fixnum' as the value of | |
240 | `scroll-conservatively' to achieve the same effect. | |
241 | ||
242 | --- | |
243 | ** ``Aggressive'' scrolling now honors the scroll margins. | |
244 | If you customize `scroll-up-aggressively' or | |
245 | `scroll-down-aggressively' and move point off the window, Emacs now | |
246 | scrolls the window so as to avoid positioning point inside the scroll | |
247 | margin. | |
248 | ||
f1a5d776 CY |
249 | ** Trash changes |
250 | ||
251 | *** `delete-by-moving-to-trash' now only affects commands that specify | |
252 | trashing. This avoids inadvertently trashing temporary files. | |
253 | ||
254 | *** Calling `delete-file' or `delete-directory' with a prefix argument | |
255 | now forces true deletion, regardless of `delete-by-moving-to-trash'. | |
256 | ||
f0bf7c8e JL |
257 | ** New option `list-colors-sort' defines the color sort order |
258 | for `list-colors-display'. | |
259 | ||
44198b6e CY |
260 | ** An Emacs Lisp package manager is now included. |
261 | This is a convenient way to download and install additional packages, | |
42d9cffa | 262 | from a package repository at elpa.gnu.org. |
cb6c4991 CY |
263 | |
264 | *** `M-x list-packages' shows a list of packages, which can be | |
265 | selected for installation. | |
266 | ||
267 | *** New command `describe-package', bound to `C-h P'. | |
44198b6e CY |
268 | |
269 | *** By default, all installed packages are loaded and activated | |
270 | automatically when Emacs starts up. To disable this, set | |
271 | `package-enable-at-startup' to nil. To change which packages are | |
272 | loaded, customize `package-load-list'. | |
273 | ||
d221e780 CO |
274 | ** An Emacs Lisp testing tool is now included. |
275 | Emacs Lisp developers can use this tool to write automated tests for | |
276 | their code. See the ERT info manual for details. | |
277 | ||
f065864f CY |
278 | ** Custom Themes |
279 | ||
280 | *** `M-x customize-themes' lists Custom themes which can be enabled. | |
281 | ||
782b5e8d CY |
282 | *** New option `custom-theme-load-path' is the load path for themes. |
283 | Emacs no longer looks for custom themes in `load-path'. The default | |
284 | is to search in `custom-theme-directory', followed by a built-in theme | |
285 | directory named "themes/" in `data-directory'. | |
286 | ||
b7617f6d CY |
287 | *** New option `custom-safe-themes' records known-safe theme files. |
288 | If a theme is not in this list, Emacs queries before loading it, and | |
289 | offers to save the theme to `custom-safe-themes' automatically. By | |
290 | default, all themes included in Emacs are treated as safe. | |
278f6845 | 291 | |
4ddf410a MA |
292 | ** The user option `remote-file-name-inhibit-cache' controls whether |
293 | the remote file-name cache is used for read access. | |
294 | ||
b8f82dc1 GM |
295 | +++ |
296 | ** The use of a "mode: minor" specification in a file local variables section | |
f0da764a | 297 | to enable a minor-mode is deprecated. Instead, use "eval: (minor-mode 1)". |
b8f82dc1 | 298 | |
17284e30 GM |
299 | ** The standalone programs lib-src/digest-doc and sorted-doc have been |
300 | replaced with Lisp commands `doc-file-to-man' and `doc-file-to-info'. | |
301 | ||
c136e5cd GM |
302 | --- |
303 | ** The standalone program `fakemail' has been removed. | |
304 | If you need it, feedmail.el ought to provide a superset of the functionality. | |
305 | ||
f13183cf CY |
306 | ** The variable `focus-follows-mouse' now always defaults to nil. |
307 | ||
42d4bcc8 LL |
308 | ** Function `sha1' is now implemented in C for speed. |
309 | The elisp implementation sha1.el is removed. Feature sha1 is provided | |
310 | by default. | |
311 | ||
5d907d6c DA |
312 | ** Menu-bar changes |
313 | ||
314 | *** `menu-bar-select-buffer-function' lets you choose another operation | |
315 | instead of `switch-to-buffer' when selecting an item in the Buffers menu. | |
316 | ||
0bfd685e | 317 | \f |
eb199145 | 318 | * Editing Changes in Emacs 24.1 |
b350bdf2 | 319 | |
892777ba CY |
320 | ** Search changes |
321 | ||
322 | +++ | |
323 | *** C-y in Isearch is now bound to isearch-yank-kill, instead of | |
324 | isearch-yank-line. | |
325 | ||
25666126 LL |
326 | --- |
327 | *** M-y in Isearch is now bound to isearch-yank-pop, instead of | |
328 | isearch-yank-kill. | |
329 | ||
892777ba CY |
330 | +++ |
331 | *** M-s C-e in Isearch is now bound to isearch-yank-line. | |
332 | ||
ea4f7750 GM |
333 | +++ |
334 | ** There is a new command `count-words-region', which does what you expect. | |
335 | ||
67027b49 | 336 | ** completion-at-point now handles tags and semantic completion. |
a982c7ec | 337 | |
d74cba8f MA |
338 | ** The default value of `backup-by-copying-when-mismatch' is now t. |
339 | ||
1c708c1a CY |
340 | ** The command `just-one-space' (C-SPC), if given a negative argument, |
341 | also deletes newlines around point. | |
342 | ||
b9229673 CY |
343 | ** Deletion changes |
344 | ||
345 | *** New option `delete-active-region'. | |
346 | If non-nil, C-d, [delete], and DEL delete the region if it is active | |
347 | and no prefix argument is given. If set to `kill', these commands | |
348 | kill instead. | |
349 | ||
350 | *** New command `delete-forward-char', bound to C-d and [delete]. | |
42d9cffa CY |
351 | This is meant for interactive use, and obeys `delete-active-region'. |
352 | The command `delete-char' does not obey `delete-active-region'. | |
b9229673 CY |
353 | |
354 | *** `delete-backward-char' is now a Lisp function. | |
355 | Apart from obeying `delete-active-region', its behavior is unchanged. | |
356 | However, the byte compiler now warns if it is called from Lisp; you | |
357 | should use delete-char with a negative argument instead. | |
358 | ||
359 | *** The option `mouse-region-delete-keys' has been deleted. | |
360 | ||
f9d71b42 CY |
361 | ** Selection changes. |
362 | ||
b1ab31ae CY |
363 | The default handling of clipboard and primary selections was changed |
364 | to conform with modern X applications. In short, most commands for | |
365 | killing and yanking text now use the clipboard, while mouse commands | |
366 | use the primary selection. | |
367 | ||
368 | In the following, we provide a list of these changes, followed by a | |
369 | list of steps to get the old behavior back if you prefer that. | |
370 | ||
371 | *** `mouse-drag-copy-region' now defaults to nil. | |
372 | *** `select-active-regions' now defaults to t. | |
373 | Merely selecting text (e.g. with drag-mouse-1) no longer puts it in | |
374 | the kill-ring. The selected text is put in the primary selection, if | |
375 | the system possesses a separate primary selection facility (e.g. X). | |
376 | ||
377 | **** `select-active-regions' also accepts a new value, `only'. | |
378 | This means to only set the primary selection for temporarily active | |
379 | regions (usually made by mouse-dragging or shift-selection); | |
380 | "ordinary" active regions, such as those made with C-SPC followed by | |
381 | point motion, do not alter the primary selection. | |
382 | ||
383 | *** mouse-2 is now bound to `mouse-yank-primary'. | |
384 | This pastes from the primary selection, ignoring the kill-ring. | |
385 | Previously, mouse-2 was bound to `mouse-yank-at-click'. | |
386 | ||
387 | *** `x-select-enable-clipboard' now defaults to t on all platforms. | |
388 | *** `x-select-enable-primary' now defaults to nil. | |
389 | Thus, commands that kill text or copy it to the kill-ring (such as | |
390 | M-w, C-w, and C-k) also use the clipboard---not the primary selection. | |
391 | ||
392 | **** The "Copy", "Cut", and "Paste" items in the "Edit" menu are now | |
393 | exactly equivalent to, respectively M-w, C-w, and C-y. | |
394 | ||
395 | **** Note that on MS-Windows, `x-select-enable-clipboard' was already | |
396 | non-nil by default, as Windows does not support the primary selection | |
397 | between applications. | |
398 | ||
399 | *** To return to the previous behavior, do the following: | |
400 | ||
104c2fe9 | 401 | **** Change `select-active-regions' to nil. |
b1ab31ae CY |
402 | **** Change `mouse-drag-copy-region' to t. |
403 | **** Change `x-select-enable-primary' to t (on X only). | |
404 | **** Change `x-select-enable-clipboard' to nil. | |
405 | **** Bind `mouse-yank-at-click' to mouse-2. | |
f9d71b42 | 406 | |
084e6df3 JD |
407 | *** Support for X cut buffers has been removed. |
408 | ||
1dd3c2d9 CY |
409 | *** Support for X clipboard managers has been added. |
410 | ||
4b80f674 CY |
411 | **** To inhibit use of the clipboard manager, set |
412 | `x-select-enable-clipboard-manager' to nil. | |
413 | ||
99f053cf JA |
414 | ** New command `rectangle-number-lines', bound to `C-x r N', numbers |
415 | the lines in the current rectangle. With an prefix argument, this | |
416 | prompts for a number to count from and for a format string. | |
417 | ||
70436396 MA |
418 | ** The command shell prompts for the shell path name, when the default |
419 | directory is a remote file name and neither environment variable | |
420 | $ESHELL nor variable `explicit-shell-file-name' is set. | |
421 | ||
9bae34bf | 422 | \f |
eb199145 | 423 | * Changes in Specialized Modes and Packages in Emacs 24.1 |
efeb796b | 424 | |
c0a193ea SM |
425 | ** comint and modes derived from it use the generic completion code. |
426 | ||
d9c54a06 CY |
427 | ** Compilation mode |
428 | ||
429 | *** Compilation mode can be used without font-lock-mode. | |
9ffae6d0 SM |
430 | `compilation-parse-errors-function' is now obsolete. |
431 | ||
d9c54a06 CY |
432 | *** `compilation-filter-start' is let-bound to the start of the text |
433 | inserted by the compilation filter function, when calling | |
434 | compilation-filter-hook. | |
435 | ||
4d0143e6 JA |
436 | ** The Landmark game is now invoked with `landmark', not `lm'. |
437 | ||
04380ff1 | 438 | ** Prolog mode has been completely revamped, with lots of additional |
86485587 | 439 | functionality such as more intelligent indentation, electricity, support for |
04380ff1 SM |
440 | more variants, including Mercury, and a lot more. |
441 | ||
78835dd0 SM |
442 | ** shell-mode can track your cwd by reading it from your prompt. |
443 | Just set shell-dir-cookie-re to an appropriate regexp. | |
444 | ||
cbf83ce9 SM |
445 | ** Modula-2 mode provides auto-indentation. |
446 | ||
b7c3692a RW |
447 | ** BibTeX mode |
448 | ||
34699b85 RW |
449 | *** New command `bibtex-search-entries' bound to C-c C-a. |
450 | ||
b7c3692a RW |
451 | *** New `bibtex-entry-format' option `sort-fields', disabled by default. |
452 | ||
022fe7ce RW |
453 | *** New variable `bibtex-search-entry-globally'. |
454 | ||
b879a6e2 SM |
455 | ** latex-electric-env-pair-mode keeps \begin..\end matched on the fly. |
456 | ||
360ac530 | 457 | ** FIXME: xdg-open for browse-url and reportbug, 2010/08. |
0ac3effe | 458 | |
b3671a51 JL |
459 | ** Archive Mode has basic support to browse 7z archives. |
460 | ||
876d1684 | 461 | ** browse-url has gotten a new variable that is used for mailto: URLs, |
0a19a6f8 | 462 | `browse-url-mailto-function', which defaults to `browse-url-mail'. |
876d1684 | 463 | |
7deebf1b LMI |
464 | ** `url-queue-retrieve' downloads web pages asynchronously, but allow |
465 | controlling the degree of parallelism. | |
466 | ||
817b48a7 GM |
467 | ** Directory local variables can apply to file-less buffers, in certain modes |
468 | (eg dired, vc-dir, log-edit). For example, adding | |
469 | "(diff-mode . ((mode . whitespace)))" to your .dir-locals.el file, | |
470 | will turn on `whitespace-mode' for *vc-diff* buffers. Modes should | |
471 | call `hack-dir-local-variables-non-file-buffer' to support this. | |
472 | ||
6640b281 GM |
473 | +++ |
474 | ** You can prevent directory local variables from applying to subdirectories. | |
475 | Add an element (subdirs . nil) to the alist portion of any variables | |
476 | settings to indicate said section should not be applied to subdirectories. | |
477 | ||
8a8d54cd VD |
478 | ** ERC changes |
479 | ||
480 | *** New vars `erc-autojoin-timing' and `erc-autojoin-delay'. | |
481 | If the value of `erc-autojoin-timing' is 'ident, ERC autojoins after a | |
482 | successful NickServ identification, or after `erc-autojoin-delay' | |
483 | seconds. The default value, 'ident, means to autojoin immediately | |
484 | after connecting. | |
485 | ||
5c0c0f77 LMI |
486 | *** New variable `erc-coding-system-precedence': If we use `undecided' |
487 | as the server coding system, this variable will then be consulted. | |
488 | The default is to decode strings that can be decoded as utf-8 as | |
489 | utf-8, and do the normal `undecided' decoding for the rest. | |
490 | ||
c0e505e5 CY |
491 | ** Eshell changes |
492 | ||
493 | *** The default value of eshell-directory-name is a directory named | |
494 | "eshell" in `user-emacs-directory'. If the old "~/.eshell/" directory | |
495 | exists, that is used instead. | |
496 | ||
27d3cd56 CY |
497 | ** In ido-mode, C-v is no longer bound to ido-toggle-vc. |
498 | The reason is that this interferes with cua-mode. | |
499 | ||
c1e25821 | 500 | ** partial-completion-mode is now obsolete. |
79ccd68f SM |
501 | You can get a comparable behavior with: |
502 | (setq completion-styles '(partial-completion initials)) | |
503 | (setq completion-pcm-complete-word-inserts-delimiters t) | |
c1e25821 | 504 | |
18c812bd | 505 | ** mpc.el: Can use pseudo tags of the form tag1|tag2 as a union of two tags. |
b2957ea8 | 506 | |
1d83b0e9 GM |
507 | ** server can listen on a specific port using the server-port option. |
508 | ||
cf16af42 GM |
509 | ** Calendar, Diary, and Appt |
510 | ||
548d0a63 GM |
511 | +++ |
512 | *** Diary entries can contain non-printing `comments'. | |
513 | See the variable `diary-comment-start'. | |
514 | ||
5006e634 GM |
515 | +++ |
516 | *** Appointments can specify their individual warning times. | |
517 | See the variable `appt-warning-time-regexp'. | |
518 | ||
0a2bb1a9 GM |
519 | --- |
520 | *** The function specified by `appt-disp-window-function' may be passed | |
521 | lists of arguments if multiple appointments are due at similar times. | |
522 | If you are using a custom function for this, you should update it. | |
523 | ||
d306b4da | 524 | +++ |
7454f200 GM |
525 | *** New function `diary-hebrew-birthday'. |
526 | ||
e565dd37 GM |
527 | --- |
528 | *** Elements of `calendar-day-abbrev-array' and `calendar-month-abbrev-array' | |
529 | may no longer be nil, but must all be strings. | |
530 | ||
cf16af42 GM |
531 | --- |
532 | *** The obsolete (since Emacs 22.1) method of enabling the appt package | |
533 | by adding appt-make-list to diary-hook has been removed. Use appt-activate. | |
534 | ||
535 | --- | |
536 | *** Some appt variables (obsolete since Emacs 22.1) have been removed: | |
537 | appt-issue-message (use the function appt-activate) | |
538 | appt-visible/appt-msg-window (use the variable appt-display-format) | |
539 | ||
540 | --- | |
541 | *** Some diary function aliases (obsolete since Emacs 22.1) have been removed: | |
542 | view-diary-entries, list-diary-entries, show-all-diary-entries | |
543 | ||
52834b6b CY |
544 | ** Customize |
545 | ||
546 | *** Customize buffers now contain a search field. | |
547 | The search is performed using `customize-apropos'. | |
42d9cffa | 548 | To turn off the search field, set custom-search-field to nil. |
52834b6b CY |
549 | |
550 | *** Custom options now start out hidden if at their default values. | |
551 | Use the arrow to the left of the option name to toggle visibility. | |
552 | ||
553 | *** custom-buffer-sort-alphabetically now defaults to t. | |
554 | ||
555 | *** The color widget now has a "Choose" button, which allows you to | |
556 | choose a color via list-colors-display. | |
557 | ||
f5d6548a JL |
558 | ** Dired-x |
559 | ||
560 | *** dired-jump and dired-jump-other-window called with a prefix argument | |
561 | read a file name from the minibuffer instead of using buffer-file-name. | |
562 | ||
817b48a7 GM |
563 | +++ |
564 | *** The `dired local variables' feature provided by Dired-x is obsolete. | |
565 | The standard directory local variables feature replaces it. | |
8117868f | 566 | |
7492acc9 MM |
567 | ** SQL Mode enhancements. |
568 | ||
9250002f MM |
569 | *** `sql-dialect' is a synonym for `sql-product'. |
570 | ||
74790210 | 571 | *** Added ability to login with a port on MySQL and Postgres. |
7492acc9 | 572 | The custom variable `sql-port' can be specified for connection to |
74790210 MM |
573 | MySQL or Postgres servers. By default, the port is not listed in |
574 | either login parameter, but will be added to the command line if set | |
575 | to a non-zero value. | |
7492acc9 | 576 | |
9250002f MM |
577 | *** Dynamic selection of product in an SQL interactive session. |
578 | If you use `sql-product-interactive' to start an SQL interactive | |
579 | session it uses the current value of `sql-product'. Preceding the | |
580 | invocation with C-u will force it to ask for the product before | |
581 | creating the session. | |
582 | ||
583 | *** Renaming a SQL interactive buffer when it is created. | |
584 | Prefixing the SQL interactive commands (`sql-sqlite', `sql-postgres', | |
585 | `sql-mysql', etc.) with C-u will force a new interactive session to be | |
586 | started and will prompt for the new name. This will reduce the need | |
587 | for `sql-rename-buffer' is most common use cases. | |
588 | ||
3bd2cfef MM |
589 | *** Command continuation prompts in SQL interactive mode are suppressed. |
590 | Multiple line commands in SQL interactive mode, generate command | |
591 | continuation prompts which needlessly confuse the output. These | |
592 | prompts are now filtered out from the output. This change impacts | |
593 | multiple line SQL statements entered with C-j between each line, | |
594 | statements yanked into the buffer and statements sent with | |
595 | `sql-send-*' functions. | |
596 | ||
7492acc9 MM |
597 | *** Custom variables control prompting for login parameters. |
598 | Each supported product has a custom variable `sql-*-login-params' | |
599 | which is a list of the parameters to be prompted for before a | |
600 | connection is established. | |
601 | ||
74790210 MM |
602 | The lists consist of the following five tokens: `user', `password', |
603 | `database', `server', and `port'. The order in which they appear is | |
604 | the order in which they are prompted. The tokens symbols can be | |
605 | replaced by a sublist starting with the token and followed by a plist | |
606 | which control the prompting for values. The tokens `user', | |
607 | `database', and `server' each can take a property of :default which | |
608 | specifies the value to be used if no value is entered. The | |
609 | `database', `server', and `port' tokens handle the :completion | |
610 | property which restricts the entry to either one of the values in the | |
611 | list or to one of the values returned by the function provided as the | |
612 | property value. The `database' and `server' tokens also accept the | |
613 | :file property whose value is a regexp to identify useful file names. | |
614 | ||
615 | (user :default DEF) | |
616 | (database :default DEF | |
617 | :file FILEPAT | |
618 | :completion COMPLETE) | |
619 | (server :default DEF | |
620 | :file FILEPAT | |
621 | :completion COMPLETE) | |
622 | ||
623 | The FILEPAT when :file is specified is a regexp that will match valid | |
624 | file names (without the directory portion). Generally these strings | |
625 | will be of the form ".+\.SUF" where SUF is the desired file suffix. | |
626 | ||
627 | When :completion is specified, the COMPLETE corresponds to the | |
628 | PREDICATE argument to the `completing-read' function (a list of | |
629 | possible values or a function returning such a list). | |
5474c40f | 630 | |
30c4d8dc MM |
631 | *** Added `sql-connection-alist' to record login parameter values. |
632 | An alist for recording different username, database and server | |
633 | values. If there are multiple databases that you connect to the | |
634 | parameters needed can be stored in this alist. | |
635 | ||
636 | For example, the following might be set in the user's init.el: | |
637 | ||
638 | (setq sql-connection-alist | |
639 | '((dev (sql-product 'sqlite) | |
640 | (sql-database "/home/mmaug/dev.db")) | |
641 | (prd (sql-product 'oracle) | |
642 | (sql-user "mmaug") | |
643 | (sql-database "iprd2a")))) | |
644 | ||
645 | This defines two connections named "dev" and "prd". | |
646 | ||
647 | *** Added `sql-connect' to use predefined connections. | |
648 | Sets the login parameters based on the values in the | |
649 | `sql-connection-alist' and start a SQL interactive session. Any | |
650 | values specified in the connection will not be prompted for. | |
651 | ||
652 | In the example above, if the user were to invoke M-x sql-connect, they | |
653 | would be prompted for the connection. The user can respond with | |
654 | either "dev" or "prd". The "dev" connection would connect to the | |
655 | SQLite database without prompting; the "prd" connection would prompt | |
656 | for the users password and then connect to the Oracle database. | |
657 | ||
d26b0ea9 | 658 | **** Added SQL->Start... submenu when connections are defined. |
b2957ea8 | 659 | When connections have been defined, there is a submenu available that |
d26b0ea9 MM |
660 | allows the user to select one to start a SQLi session. The "Start |
661 | SQLi Session" item moves to the "Start..." submenu when cnnections | |
662 | have been defined. | |
663 | ||
664 | **** Added "Save Connection" menu item in SQLi buffers. | |
665 | When a SQLi session is not started by a connection then | |
666 | `sql-save-connection' will gather the login params specified for the | |
667 | session and save them as a new connection. | |
668 | ||
74790210 MM |
669 | *** List database objects and details. |
670 | Once a SQL interactive session has been started, you can get a list of | |
671 | the objects in the database and see details of those objects. The | |
672 | objects shown and the details available are product specific. | |
673 | ||
674 | **** List all objects. | |
675 | Using `M-x sql-list-all', `C-c C-l a' or selecting "SQL->List all | |
676 | objects" will list all the objects in the database. At a minimum it | |
86485587 | 677 | lists the tables and views in the database. Preceding the command by |
74790210 MM |
678 | universal argument may provide additional details or extend the |
679 | listing to include other schemas objects. The list will appear in a | |
680 | separate window in view-mode. | |
681 | ||
682 | **** List Table details. | |
683 | Using `M-x sql-list-table', `C-c C-l t' or selecting "SQL->List Table | |
684 | details" will ask for the name of a database table or view and display | |
86485587 | 685 | the list of columns in the relation. Preceding the command with the |
74790210 MM |
686 | universal argument may provide additional details about each column. |
687 | The list will appear in a separate window in view-mode. | |
688 | ||
7492acc9 MM |
689 | *** Added option `sql-send-terminator'. |
690 | When set makes sure that each command sent with `sql-send-*' commands | |
691 | are properly terminated and submitted to the SQL processor. | |
692 | ||
693 | *** Added option `sql-oracle-scan-on'. | |
694 | When set commands sent to Oracle's SQL*Plus are scanned for strings | |
30c4d8dc MM |
695 | starting with an ampersand and the user is asked for replacement text. |
696 | In general, the SQL*Plus option SCAN should always be set OFF under | |
697 | SQL interactive mode and this option used in its place. | |
7492acc9 MM |
698 | |
699 | *** SQL interactive mode will replace tabs with spaces. | |
86485587 | 700 | This prevents the command interpreter for MySQL and Postgres from |
7492acc9 MM |
701 | listing object name completions when being sent text via |
702 | `sql-send-*' functions. | |
703 | ||
704 | *** An API for manipulating SQL product definitions has been added. | |
705 | ||
18af70d0 CY |
706 | ** Image mode |
707 | ||
708 | *** RET (`image-toggle-animation') toggles animation, if the displayed | |
709 | image can be animated. | |
710 | ||
711 | *** Option `image-animate-loop', if non-nil, loops the animation. | |
712 | If nil, `image-toggle-animation' plays the animation once. | |
713 | ||
723ee192 SM |
714 | ** sregex.el is now obsolete, since rx.el is a strict superset. |
715 | ||
6ca94a0b | 716 | ** s-region.el and pc-select are now declared obsolete, |
86485587 | 717 | superseded by shift-select-mode enabled by default in 23.1. |
6ca94a0b | 718 | ** pc-mode.el is also declared obsolete. |
691cf4a0 NR |
719 | ** gdb-mi |
720 | ||
721 | *** GDB User Interface migrated to GDB Machine Interface and now | |
722 | supports multithread non-stop debugging and debugging of several | |
723 | threads simultaneously. | |
724 | ||
37221432 MA |
725 | ** D-Bus |
726 | ||
727 | *** It is possible now, to access alternative buses than the default | |
728 | system or session bus. | |
729 | ||
3c3d4f5b MA |
730 | *** dbus-register-{service,method,property} |
731 | The -method and -property functions do not automatically register | |
732 | names anymore. | |
733 | ||
734 | The new function dbus-register-service registers a service known name | |
735 | on a D-Bus without simultaneously registering a property or a method. | |
412b9ee5 | 736 | |
459bba37 MA |
737 | ** Tramp |
738 | ||
a808d31f MA |
739 | *** There exists a new inline access method "ksu" (kerberized su). |
740 | ||
459bba37 | 741 | *** The following access methods are discontinued: "ssh1_old", |
ea843702 | 742 | "ssh2_old", "scp1_old", "scp2_old", "imap", "imaps" and "fish". |
459bba37 | 743 | |
58f74fe4 MA |
744 | *** The option `ange-ftp-binary-file-name-regexp' has changed its |
745 | default value to "". | |
746 | ||
0c32ce32 CY |
747 | ** VC and related modes |
748 | ||
749 | *** Support for pulling on distributed version control systems. | |
659114fd | 750 | The vc-pull command runs a "pull" operation, if it is supported. |
0c32ce32 | 751 | This updates the current branch from upstream. A prefix argument |
659114fd | 752 | means to prompt the user for specifics, e.g. a pull location. |
0c32ce32 | 753 | |
7d93eca9 | 754 | **** `vc-update' is now an alias for `vc-pull'. |
0c32ce32 | 755 | |
659114fd | 756 | **** Currently supported by Bzr, Git, and Mercurial. |
0c32ce32 CY |
757 | |
758 | *** Support for merging on distributed version control systems. | |
759 | The vc-merge command now runs a "merge" operation, if it is supported. | |
659114fd CY |
760 | This merges another branch into the current one. This command prompts |
761 | the user for specifics, e.g. a merge source. | |
0c32ce32 | 762 | |
33f6cf7b | 763 | **** Currently supported for Bzr, Git, and Mercurial. |
0c32ce32 | 764 | |
d4eb88c7 CY |
765 | *** Log entries in some Log View buffers can be toggled to display a |
766 | longer description by typing RET (log-view-toggle-entry-display). | |
767 | In the Log View buffers made by `C-x v L' (vc-print-root-log), you can | |
768 | use this to display the full log entry for the revision at point. | |
769 | ||
33f6cf7b | 770 | **** Currently supported for Bzr, Git, and Mercurial. |
d4eb88c7 CY |
771 | |
772 | **** Packages using Log View mode can enable this functionality by | |
773 | binding `log-view-expanded-log-entry-function' to a suitable function. | |
774 | ||
1c6c854e CS |
775 | *** New command `vc-ediff' allows visual comparison of two revisions |
776 | of a file similar to `vc-diff', but using ediff backend. | |
777 | ||
0fe719e6 GM |
778 | ** Miscellaneous |
779 | ||
780 | --- | |
781 | *** `copyright-fix-years' can optionally convert consecutive years to ranges. | |
782 | ||
5b3e6db8 GM |
783 | *** New command `nato-region' converts text to NATO phonetic alphabet. |
784 | ||
0f0c1f27 EZ |
785 | *** The new command `info-display-manual' will display an Info manual |
786 | specified by its name. If that manual is already visited in some Info | |
787 | buffer within the current session, the command will display that | |
788 | buffer. Otherwise, it will load the manual and display it. This is | |
789 | handy if you have many manuals in many Info buffers, and don't | |
790 | remember the name of the buffer visiting the manual you want to | |
791 | consult. | |
792 | ||
eb199145 GM |
793 | \f |
794 | * New Modes and Packages in Emacs 24.1 | |
d445b3f8 | 795 | |
60e56523 LL |
796 | ** Occur Edit mode applies edits made in *Occur* buffers to the |
797 | original buffers. It is bound to C-x C-q in Occur mode. | |
798 | ||
7100ff98 SM |
799 | ** New global minor modes electric-pair-mode, electric-indent-mode, |
800 | and electric-layout-mode. | |
3b843809 | 801 | |
a83ec3c9 CY |
802 | ** tabulated-list.el provides a generic major mode for tabulated data, |
803 | from which other modes can be derived. | |
804 | ||
d02c9bcd SM |
805 | ** pcase.el provides the ML-style pattern matching macro `pcase'. |
806 | ||
7725ebb7 MA |
807 | ** secrets.el is an implementation of the Secret Service API, an |
808 | interface to password managers like GNOME Keyring or KDE Wallet. The | |
065f2743 MA |
809 | Secret Service API requires D-Bus for communication. The command |
810 | `secrets-show-secrets' offers a buffer with a visualization of the | |
811 | secrets. | |
7725ebb7 | 812 | |
f9e78150 MA |
813 | ** notifications.el provides an implementation of the Desktop |
814 | Notifications API. It requires D-Bus for communication. | |
815 | ||
12fe5bcc MA |
816 | ** soap-client.el supports access to SOAP web services from Emacs. |
817 | soap-inspect.el is an interactive inspector for SOAP WSDL structures. | |
818 | ||
ad7d6ecb GM |
819 | ** xmodmap-generic-mode for xmodmap files. |
820 | ||
eb199145 GM |
821 | \f |
822 | * Incompatible Lisp Changes in Emacs 24.1 | |
6dfcbe31 | 823 | |
fa6996bc EZ |
824 | --- |
825 | ** `char-direction-table' and the associated function `char-direction' | |
826 | were deleted. They were buggy and inferior to the new support of | |
827 | bidirectional editing introduced in Emacs 24. If you need the | |
828 | bidirectional properties of a character, use `get-char-code-property' | |
829 | with the last argument `bidi-class'. | |
830 | ||
470d996d TV |
831 | ** `copy-directory' now copies the source directory as a subdirectory |
832 | of the target directory, if the latter is an existing directory. The | |
833 | new optional arg COPY-CONTENTS, if non-nil, makes the function copy | |
834 | the contents directly into a pre-existing target directory. | |
835 | ||
25ca2e61 CY |
836 | ** `compose-mail' now accepts an optional 8th arg, RETURN-ACTION, and |
837 | passes it to the mail user agent function. This argument specifies an | |
838 | action for returning to the caller after finishing with the mail. | |
839 | This is currently used by Rmail to delete a mail window. | |
840 | ||
9173a8fb CY |
841 | ** For mouse click input events in the text area, the Y pixel |
842 | coordinate in the POSITION list now counts from the top of the text | |
843 | area, excluding any header line. Previously, it counted from the top | |
844 | of the header line. | |
845 | ||
c4d17d50 SM |
846 | ** Remove obsolete name `e' (use `float-e' instead). |
847 | ||
288cf4e9 SM |
848 | ** A backquote not followed by a space is now always treated as new-style. |
849 | ||
fd5c9dfa | 850 | ** Test for special mode-class was moved from view-file to view-buffer. |
288cf4e9 SM |
851 | FIXME: This only says what was changed, but not what are the |
852 | programmer-visible consequences. | |
fd5c9dfa | 853 | |
3b7e1d5f | 854 | ** Passing a nil argument to a minor mode function now turns the mode |
0a19a6f8 | 855 | ON unconditionally. |
6431f2e6 CY |
856 | |
857 | ** During startup, Emacs no longer adds entries for `menu-bar-lines' | |
0a19a6f8 JB |
858 | and `tool-bar-lines' to `default-frame-alist' and `initial-frame-alist'. |
859 | With these alist entries omitted, `make-frame' checks the value of the | |
860 | variable `menu-bar-mode'/`tool-bar-mode' to determine whether to create | |
861 | a menu-bar or tool-bar, respectively. If the alist entries are added, | |
862 | they override the value of `menu-bar-mode'/`tool-bar-mode'. | |
6431f2e6 | 863 | |
fe0aa820 CY |
864 | ** Regions created by mouse dragging are now normal active regions, |
865 | similar to the ones created by shift-selection. In previous Emacs | |
866 | versions, these regions were delineated by `mouse-drag-overlay', which | |
867 | has now been removed. | |
d6d8ee7a | 868 | |
4583e796 GM |
869 | ** cl.el no longer provides `cl-19'. |
870 | ||
3226d6ca GM |
871 | ** The following functions and aliases, obsolete since at least Emacs 21.1, |
872 | have been removed: | |
873 | comint-kill-output, decompose-composite-char, outline-visible, | |
874 | internal-find-face, internal-get-face, frame-update-faces, | |
875 | frame-update-face-colors, x-frob-font-weight, x-frob-font-slant, | |
876 | x-make-font-bold, x-make-font-demibold, x-make-font-unbold | |
877 | x-make-font-italic, x-make-font-oblique, x-make-font-unitalic | |
878 | x-make-font-bold-italic, mldrag-drag-mode-line, mldrag-drag-vertical-line, | |
922ad43e GM |
879 | iswitchb-default-keybindings, char-bytes, isearch-return-char, |
880 | make-local-hook | |
3226d6ca GM |
881 | |
882 | ** The following variables and aliases, obsolete since at least Emacs 21.1, | |
883 | have been removed: | |
6aecca99 GM |
884 | checkdoc-minor-keymap, vc-header-alist, directory-sep-char, |
885 | font-lock-defaults-alist | |
3226d6ca | 886 | |
7b0e3048 GM |
887 | ** The following files, obsolete since at least Emacs 21.1, have been removed: |
888 | sc.el, x-menu.el, rnews.el, rnewspost.el | |
889 | ||
33658d4e CY |
890 | ** FIXME finder-inf.el changes. |
891 | ||
eb199145 GM |
892 | \f |
893 | * Lisp changes in Emacs 24.1 | |
9097e8af | 894 | |
a2a25d24 SM |
895 | ** Completion |
896 | *** New variable completion-extra-properties used to specify extra properties | |
897 | of the current completion: | |
898 | - :annotate-function, same as the old completion-annotate-function. | |
899 | - :exit-function, function to call after completion took place. | |
900 | ||
901 | *** Functions on completion-at-point-functions can return any of the properties | |
902 | valid for completion-extra-properties. | |
903 | ||
904 | *** completion-annotate-function is obsolete. | |
905 | ||
620c53a6 SM |
906 | *** New `metadata' method for completion tables. The metadata thus returned |
907 | can specify various details of the data returned by `all-completions': | |
908 | - `category' is the kind of objects returned (e.g., `buffer', `file', ...), | |
909 | used to select a style in completion-category-overrides. | |
910 | - `annotation-function' to add annotations in *Completions*. | |
911 | - `display-sort-function' to specify how to sort entries in *Completions*. | |
912 | - `cycle-sort-function' to specify how to sort entries when cycling. | |
913 | ||
f042970d | 914 | ** `glyphless-char-display' can now distinguish between graphical and |
16a43933 CY |
915 | text terminal display, via a char-table entry that is a cons cell. |
916 | ||
da91b5f2 CY |
917 | ** `open-network-stream' can now be used to open an encrypted stream. |
918 | It now accepts an optional `:type' parameter for initiating a TLS | |
919 | connection, directly or via STARTTLS. To do STARTTLS, additional | |
920 | parameters (`:end-of-command', `:success', `:capabilities-command') | |
921 | must also be supplied. | |
922 | ||
03408648 SM |
923 | ** Code can now use lexical scoping by default instead of dynamic scoping. |
924 | The `lexical-binding' variable lets code use lexical scoping for local | |
925 | variables. It is typically set via file-local variables, in which case it | |
926 | applies to all the code in that file. | |
927 | ||
928 | *** `eval' takes a new optional argument `lexical' to choose the new lexical | |
929 | binding instead of the old dynamic binding mode. | |
930 | ||
931 | *** Lexically scoped interpreted functions are represented with a new form | |
932 | of function value which looks like (closure ENV ARGS &rest BODY). | |
933 | ||
934 | *** New macro `letrec' to define recursive local functions. | |
935 | ||
936 | *** New function `special-variable-p' to check whether a variable is | |
937 | declared as dynamically bound. | |
938 | ||
f6d62986 SM |
939 | ** pre/post-command-hook are not reset to nil upon error. |
940 | Instead, the offending function is removed. | |
941 | ||
942 | ** New low-level function run-hook-wrapped. | |
943 | ||
7deebf1b LMI |
944 | ** `server-eval-at' is provided to allow evaluating forms on different |
945 | Emacs server instances. | |
946 | ||
947 | ** `call-process' allows a `(:file "file")' spec to redirect STDOUT to | |
948 | a file. | |
949 | ||
53cfe624 | 950 | ** byte-compile-disable-print-circle is obsolete. |
78f64af0 | 951 | ** deferred-action-list and deferred-action-function are obsolete. |
e7f7fbaa SM |
952 | ** Removed the stack-trace-on-error variable. |
953 | Also the debugger can now "continue" from an error, which means it will jump | |
954 | to the error handler as if the debugger had not been invoked instead of | |
955 | jumping all the way to the top-level. | |
956 | ||
3ef01959 CY |
957 | ** New function `read-char-choice' reads a restricted set of characters, |
958 | discarding any inputs not inside the set. | |
959 | ||
2e288d54 JB |
960 | ** `image-library-alist' is renamed to `dynamic-library-alist'. |
961 | The variable is now used to load all kind of supported dynamic libraries, | |
962 | not just image libraries. The previous name is still available as an | |
963 | obsolete alias. | |
964 | ||
cf38dd42 SM |
965 | ** New variable syntax-propertize-function to set syntax-table properties. |
966 | Replaces font-lock-syntactic-keywords which are now obsolete. | |
967 | This allows syntax-table properties to be set independently from font-lock: | |
968 | just call syntax-propertize to make sure the text is propertized. | |
969 | Together with this new variable come a new hook | |
970 | syntax-propertize-extend-region-functions, as well as two helper functions: | |
971 | syntax-propertize-via-font-lock to reuse old font-lock-syntactic-keywords | |
972 | as-is; and syntax-propertize-rules which provides a new way to specify | |
973 | syntactic rules. | |
974 | ||
a2e5caf7 SM |
975 | ** New hook post-self-insert-hook run at the end of self-insert-command. |
976 | ||
7cf78aac | 977 | +++ |
c5683ceb | 978 | ** Syntax tables support a new "comment style c" additionally to style b. |
4e2db1fe | 979 | ** frame-local variables cannot be let-bound any more. |
10dcc561 | 980 | ** prog-mode is a new major-mode meant to be the parent of programming mode. |
f44379e7 SM |
981 | ** define-minor-mode accepts a new keyword :variable. |
982 | ||
b2957ea8 | 983 | ** `delete-file' and `delete-directory' now accept optional arg TRASH. |
f1a5d776 CY |
984 | Trashing is performed if TRASH and `delete-by-moving-to-trash' are |
985 | both non-nil. Interactively, TRASH defaults to t, unless a prefix | |
986 | argument is supplied (see Trash changes, above). | |
53967e09 | 987 | |
8f92b8ad SM |
988 | ** buffer-substring-filters is obsoleted by filter-buffer-substring-functions. |
989 | ||
9317e499 CY |
990 | ** `facemenu-read-color' is now an alias for `read-color'. |
991 | The command `read-color' now requires a match for a color name or RGB | |
992 | triplet, instead of signalling an error if the user provides a invalid | |
993 | input. | |
994 | ||
4039c786 CY |
995 | ** Tool-bars can display separators. |
996 | Tool-bar separators are handled like menu separators in menu-bar maps, | |
94975270 | 997 | i.e. via menu entries of the form `(menu-item "--")'. |
9317e499 | 998 | |
00fe2df1 JL |
999 | ** Image API |
1000 | ||
18af70d0 CY |
1001 | *** Animated images support (currently animated gifs only). |
1002 | ||
1003 | **** `image-animated-p' returns non-nil if an image can be animated. | |
1004 | ||
1005 | **** `image-animate' animates a supplied image spec. | |
1006 | ||
1007 | **** `image-animate-timer' returns the timer object for an image that | |
1008 | is being animated. | |
00fe2df1 | 1009 | |
1546c559 JL |
1010 | *** `image-extension-data' is renamed to `image-metadata'. |
1011 | ||
71c17aec LMI |
1012 | ** XML and HTML parsing |
1013 | ||
1014 | *** If Emacs is compiled with libxml2 support (which is the default), | |
4b9832a6 | 1015 | two new Emacs Lisp-level functions are defined: |
84156e94 MA |
1016 | `libxml-parse-html-region' (which will parse "real world" HTML) |
1017 | and `libxml-parse-xml-region' (which parses XML). Both return an | |
4b9832a6 CY |
1018 | Emacs Lisp parse tree. |
1019 | ||
1020 | FIXME: These should be front-ended by xml.el. | |
1021 | ||
e2574f2c TZ |
1022 | ** GnuTLS |
1023 | ||
1024 | *** Emacs can be compiled with libgnutls support | |
1025 | This is the default. You will then be able to use the functionality | |
1026 | in gnutls.el, namely the `open-gnutls-stream' and `gnutls-negotiate' | |
1027 | functions. It's easiest to use these functions through | |
1028 | `open-network-stream' because it can upgrade connections through | |
1029 | STARTTLS opportunistically or use plain SSL, depending on your needs. | |
1030 | ||
1031 | Only versions 2.8.x and higher or GnuTLS have been tested. | |
1032 | ||
1033 | *** gnutls-log-level | |
1034 | Set `gnutls-log-level' higher than 0 to get debug output. 1 is for | |
1035 | important messages, 2 is for debug data, and higher numbers are as per | |
1036 | the GnuTLS logging conventions. The output is in *Messages*. | |
71c17aec | 1037 | |
a6020335 MH |
1038 | ** Isearch |
1039 | ||
1040 | *** New hook `isearch-update-post-hook' that runs in `isearch-update'. | |
1041 | ||
9326ba26 CY |
1042 | ** Progress reporters can now "spin". |
1043 | The MIN-VALUE and MAX-VALUE arguments of `make-progress-reporter' can | |
1044 | now be nil, or omitted. This makes a "non-numeric" reporter. Each | |
1045 | time you call `progress-reporter-update' on that progress reporter, | |
1046 | with a nil or omitted VALUE argument, the reporter message is | |
1047 | displayed with a "spinning bar". | |
1048 | ||
3e214b50 JB |
1049 | ** New variable `revert-buffer-in-progress-p' is true while a buffer is |
1050 | being reverted, even if the buffer has a local `revert-buffer-function'. | |
1051 | ||
638f053a JB |
1052 | ** New variables `delayed-warnings-list' and `delayed-warnings-hook' allow |
1053 | deferring warnings until the main command loop is executed. | |
1054 | ||
e145f188 GM |
1055 | +++ |
1056 | ** `set-auto-mode' now respects mode: local variables at the end of files, | |
1057 | as well as those in the -*- line. | |
1058 | ||
6420d28b CY |
1059 | --- |
1060 | ** rx.el has a new `group-n' construct for explicitly numbered groups. | |
1061 | ||
eb199145 GM |
1062 | \f |
1063 | * Changes in Emacs 24.1 on non-free operating systems | |
d53a60a6 | 1064 | |
0a19a6f8 | 1065 | ** New configure.bat option --enable-checking builds Emacs with extra |
04779484 JB |
1066 | runtime checks. |
1067 | ||
e3aef5c6 | 1068 | ** New configure.bat option --distfiles to specify files to be |
0a19a6f8 | 1069 | included in binary distribution. |
e3aef5c6 | 1070 | |
e2574f2c TZ |
1071 | ** New configure.bat option --without-gnutls to disable automatic |
1072 | GnuTLS detection. | |
1073 | ||
1074 | ** New configure.bat option --lib for general library linkage, works | |
1075 | with the USER_LIBS build variable. | |
1076 | ||
0a19a6f8 | 1077 | ** New make target `dist' to create binary distribution for MS Windows. |
e3aef5c6 | 1078 | |
05197f40 | 1079 | \f |
a933dad1 | 1080 | ---------------------------------------------------------------------- |
5b87ad55 | 1081 | This file is part of GNU Emacs. |
a933dad1 | 1082 | |
ab73e885 | 1083 | GNU Emacs is free software: you can redistribute it and/or modify |
5b87ad55 | 1084 | it under the terms of the GNU General Public License as published by |
ab73e885 GM |
1085 | the Free Software Foundation, either version 3 of the License, or |
1086 | (at your option) any later version. | |
5b87ad55 GM |
1087 | |
1088 | GNU Emacs is distributed in the hope that it will be useful, | |
1089 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
1090 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
1091 | GNU General Public License for more details. | |
a933dad1 | 1092 | |
5b87ad55 | 1093 | You should have received a copy of the GNU General Public License |
ab73e885 | 1094 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
a933dad1 | 1095 | |
05197f40 | 1096 | \f |
a933dad1 DL |
1097 | Local variables: |
1098 | mode: outline | |
1099 | paragraph-separate: "[ \f]*$" | |
1100 | end: |