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29b7722a | 1 | GNU Emacs NEWS -- history of user-visible changes. |
5b87ad55 | 2 | |
ab422c4d | 3 | Copyright (C) 2010-2013 Free Software Foundation, Inc. |
5b87ad55 | 4 | See the end of the file for license conditions. |
a933dad1 | 5 | |
893db5bc | 6 | Please send Emacs bug reports to bug-gnu-emacs@gnu.org. |
9a21d88b KS |
7 | If possible, use M-x report-emacs-bug. |
8 | ||
eb199145 | 9 | This file is about changes in Emacs version 24. |
9a21d88b | 10 | |
eb199145 GM |
11 | See files NEWS.23, NEWS.22, NEWS.21, NEWS.20, NEWS.19, NEWS.18, |
12 | and NEWS.1-17 for changes in older Emacs versions. | |
9a21d88b KS |
13 | |
14 | You can narrow news to a specific version by calling `view-emacs-news' | |
15 | with a prefix argument or by typing C-u C-h C-n. | |
3f7194ed | 16 | |
a1ed8b05 GM |
17 | Temporary note: |
18 | +++ indicates that the appropriate manual has already been updated. | |
19 | --- means no change in the manuals is called for. | |
20 | When you add a new item, please add it without either +++ or --- | |
21 | so we will look at it and add it to the manual. | |
22 | ||
23 | \f | |
95a32efb | 24 | * Installation Changes in Emacs 24.4 |
7c3d167f RF |
25 | |
26 | ** Emacs can be compiled with POSIX ACL support. | |
27 | This happens by default if a suitable support library is found at | |
28 | build time, like libacl on GNU/Linux. To prevent this, use the | |
29 | configure option `--without-acl'. | |
30 | ||
c57b2d76 | 31 | \f |
95a32efb | 32 | * Startup Changes in Emacs 24.4 |
c57b2d76 GM |
33 | |
34 | \f | |
95a32efb | 35 | * Changes in Emacs 24.4 |
c6c08d3f | 36 | |
61a5bb85 BG |
37 | +++ |
38 | ** `apropos-variable' is now `apropos-user-option' | |
39 | `apropos-user-option' shows all user options while `apropos-variable' | |
40 | shows all variables. When called with a universal prefix argument, | |
41 | the two commands swap their behaviors. When `apropos-do-all' is | |
42 | non-nil, they output the same results. | |
43 | ||
c6c08d3f GM |
44 | +++ |
45 | ** `eval-defun' on an already defined defcustom calls the :set function, | |
46 | if there is one. | |
47 | ||
97a1cd9d GM |
48 | ** If the new variable `enable-dir-local-variables' is nil, |
49 | directory local variables are ignored. May be useful for some modes | |
50 | that want to ignore directory-locals while still respecting file-locals. | |
51 | ||
5dea55d2 CY |
52 | ** The option `set-mark-default-inactive' has been deleted. |
53 | This unfinished feature was introduced by accident in Emacs 23.1; | |
54 | simply disabling Transient Mark mode does the same thing. | |
55 | ||
dc646358 CK |
56 | ** `initial-buffer-choice' can now specify a function to set up the |
57 | initial buffer. | |
58 | ||
7c3d167f RF |
59 | ** ACL support has been added. |
60 | +++ | |
61 | *** Emacs preserves the ACL entries of files when backing up. | |
62 | +++ | |
63 | *** New functions `file-acl' and `set-file-acl' get and set the ACL | |
66447e07 EZ |
64 | entries of a file. On GNU/Linux, the POSIX ACL interface is used via |
65 | libacl. On MS-Windows, the NT Security APIs are used to emulate the | |
66 | POSIX ACL interfaces. | |
7c3d167f | 67 | |
99548339 | 68 | ** New option `scroll-bar-adjust-thumb-portion'. |
a219080b EZ |
69 | Available only on X, this option allows to control over-scrolling |
70 | using the scroll bar (i.e. dragging the thumb down even when the end | |
71 | of the buffer is visible). | |
99548339 | 72 | |
c57b2d76 | 73 | \f |
95a32efb | 74 | * Editing Changes in Emacs 24.4 |
4f0552c2 | 75 | |
a45b7647 JL |
76 | ** New commands `toggle-frame-fullscreen' and `toggle-frame-maximized', |
77 | bound to <f11> and M-<f10>, respectively. | |
37f38bca | 78 | |
958614cf GM |
79 | ** In keymaps where SPC scrolls, S-SPC now scrolls in the reverse direction. |
80 | Eg View mode, etc. | |
81 | ||
4f0552c2 | 82 | \f |
95a32efb | 83 | * Changes in Specialized Modes and Packages in Emacs 24.4 |
4f0552c2 | 84 | |
c4f268a1 SM |
85 | ** Delphi mode is now called OPascal mode. |
86 | *** All delphi-* variables and functions have been renamed to opascal-*. | |
87 | *** `delphi-newline-always-indents' is not supported any more | |
88 | use `electric-indent-mode' instead. | |
89 | *** `delphi-tab' is gone, replaced by `indent-for-tab-command'. | |
90 | ||
e5b5a34d SM |
91 | ** jit-lock-debug-mode lets you use the debuggers on code run via jit-lock. |
92 | ||
b14abca9 RW |
93 | ** completing-read-multiple's separator can now be a regexp. |
94 | The default separator is changed to allow surrounding spaces around the comma. | |
95 | ||
19b748ad TM |
96 | ** Battery |
97 | ||
98 | *** Battery information via the BSD `apm' utility is now supported. | |
99 | ||
ba30c70f GM |
100 | ** cl-lib |
101 | ||
102 | *** New macro cl-tagbody. | |
103 | ||
104 | +++ | |
105 | *** letf is now just an alias for cl-letf. | |
106 | ||
0e70ce93 PE |
107 | ** Calc |
108 | ||
109 | *** Calc by default now uses the Gregorian calendar for all dates, and | |
110 | uses January 1, 1 AD as its day number 1. Previously Calc used the | |
111 | Julian calendar for dates before September 14, 1752, and it used | |
112 | December 31, 1 BC as its day number 1; the new scheme is more | |
113 | consistent with Calendar's calendrical system and day numbering. | |
114 | ||
115 | *** The new variable `calc-gregorian-switch' lets you configure the | |
116 | date when Calc switches from the Julian to the Gregorian calendar. | |
117 | Nil, the default value, means to always use the Gregorian calendar. | |
118 | The value (YEAR MONTH DAY) means to start using the Gregorian calendar | |
119 | on the given date. | |
120 | ||
86e100a6 GM |
121 | *** Support for ISO 8601 dates. |
122 | ||
a2a538b1 CS |
123 | ** Dired |
124 | ||
125 | *** New minor mode `dired-hide-details-mode' hides details. | |
126 | ||
21859ebc EH |
127 | ** ERC |
128 | ||
129 | *** New option `erc-accidental-paste-threshold-seconds'. | |
130 | If set to a number, this can be used to avoid accidentally paste large | |
131 | amounts of data into the ERC input. | |
132 | ||
133 | ** Icomplete is a bit more like IDO. | |
134 | *** key bindings to navigate through and select the completions. | |
135 | *** The icomplete-separator is customizable, and its default has changed. | |
136 | *** Removed icomplete-show-key-bindings. | |
137 | ||
2a43515a | 138 | ** Image mode |
20de6ab6 CW |
139 | |
140 | *** New commands `n' (`image-next-file') and `p' (`image-previous-file') | |
141 | visit the next image file and the previous image file in the same | |
142 | directory, respectively. | |
143 | ||
c0211c4e GM |
144 | *** New commands to show specific frames of multi-frame images. |
145 | `f' (`image-next-frame') and `b' (`image-previous-frame') visit the | |
146 | next or previous frame. `F' (`image-goto-frame') shows a specific frame. | |
147 | ||
2a43515a CY |
148 | --- |
149 | *** The command `image-mode-fit-frame' deletes other windows. | |
150 | When toggling, it restores the frame's previous window configuration. | |
151 | It also has an optional frame argument, which can be used by Lisp | |
152 | callers to fit the image to a frame other than the selected frame. | |
153 | ||
279f9b06 JL |
154 | ** Isearch |
155 | ||
156 | *** `C-x 8 RET' in Isearch mode reads a character by its Unicode name | |
157 | and adds it to the search string. | |
158 | ||
6827cac1 BW |
159 | ** MH-E has been updated to MH-E version 8.4. |
160 | See MH-E-NEWS for details. | |
161 | ||
13a40633 GM |
162 | --- |
163 | ** The unrmail command converts from BABYL to mboxrd rather than mboxo. | |
164 | Customize `unrmail-mbox-format' to change this. | |
165 | ||
166 | --- | |
167 | ** Similarly, customize `rmail-mbox-format' to influence some minor aspects | |
168 | of how Rmail displays non-MIME messages. | |
169 | ||
4f0552c2 GM |
170 | +++ |
171 | ** New function `ses-rename-cell' to give SES cells arbitrary names. | |
172 | ||
8b62d742 SM |
173 | ** trace-function was largely rewritten. |
174 | New features include: | |
175 | - no prompting for the destination buffer, unless a prefix-arg was used. | |
176 | - additionally to prompting for a destination buffer, when a prefix-arg is | |
177 | used, the user can enter a "context", i.e. Lisp expression whose value at the | |
178 | time the function is entered/exited will be printed along with the function | |
179 | name and arguments. Useful to trace the value of (current-buffer) or | |
180 | (point) when the function is invoked. | |
181 | ||
c38a186c JL |
182 | ** New command `delete-duplicate-lines' has two types of operation: |
183 | when its arg ADJACENT is non-nil (when called interactively with C-u C-u) | |
184 | it works like the utility `uniq'. Otherwise by default it deletes | |
185 | duplicate lines everywhere in the region without regard to adjacency. | |
186 | ||
ad4de702 MN |
187 | ** New `cycle-spacing' command allows cycling between having just one |
188 | space, no spaces, or reverting to the original spacing. Like | |
189 | `just-one-space' command it can handle or ignore newlines and | |
190 | leave different number of spaces. | |
191 | ||
aefa2ead | 192 | ** Tramp |
26280467 | 193 | |
aefa2ead MA |
194 | +++ |
195 | *** New connection method "adb", which allows to access Android | |
196 | devices by the Android Debug Bridge. The variable `tramp-adb-sdk-dir' | |
197 | must be set to the Android SDK installation directory. | |
26280467 MA |
198 | |
199 | *** The connection methods "scpc" and "rsyncc" are discontinued. The | |
200 | ssh option "ControlMaster=auto" is set automatically in all ssh-based | |
201 | methods, when possible. | |
202 | ||
ed7367b1 MA |
203 | +++ |
204 | *** Handlers for `file-acl' and `set-file-acl' for remote machines | |
205 | which support POSIX ACLs. | |
aefa2ead | 206 | |
433212bf CY |
207 | ** Woman |
208 | ||
209 | *** The commands `woman-default-faces' and `woman-monochrome-faces' | |
210 | are obsolete. Customize the `woman-* faces instead. | |
211 | ||
770de7cf CY |
212 | ** Obsolete packages: |
213 | ||
214 | *** longlines.el is obsolete; use visual-line-mode instead. | |
215 | ||
ce3e7725 CY |
216 | *** terminal.el is obsolete; use term.el instead. |
217 | ||
4e16ddf4 GM |
218 | +++ |
219 | *** yow.el is obsolete; use fortune.el or cookie1.el instead. | |
220 | ||
4f0552c2 | 221 | \f |
95a32efb | 222 | * New Modes and Packages in Emacs 24.4 |
231d8498 SM |
223 | ** New nadvice.el package offering lighter-weight advice facilities. |
224 | It is layered as: | |
225 | - add-function/remove-function which can be used to add/remove code on any | |
226 | function-carrying place, such as process-filters or `<foo>-function' hooks. | |
227 | - advice-add/advice-remove to add/remove a piece of advice on a named function, | |
228 | much like `defadvice' does. | |
229 | ||
c57b2d76 | 230 | \f |
95a32efb | 231 | * Incompatible Lisp Changes in Emacs 24.4 |
da03ef8a | 232 | |
99d0d6dc SM |
233 | ** Removed inhibit-local-menu-bar-menus. |
234 | ||
e02230bf SM |
235 | ** frame-local variables that affect redisplay do not work any more. |
236 | More specifically, the redisplay does not bother to check for a frame-local | |
237 | value when looking up variables. | |
238 | ||
eadf1faa SM |
239 | ** nil and "unbound" are indistinguishable in symbol-function. |
240 | `symbol-function' never signals `void-function' any more. | |
241 | `fboundp' returns non-nil if the symbol was `fset' to nil. | |
242 | ||
3c442f8b SM |
243 | ** `defadvice' does not honor the `freeze' flag and cannot advise |
244 | special-forms any more. | |
7db1bda8 | 245 | |
da03ef8a SM |
246 | ** `dolist' in lexical-binding mode does not bind VAR in RESULT any more. |
247 | VAR was bound to nil which was not tremendously useful and just lead to | |
248 | spurious warnings about an unused var. | |
249 | ||
7c3d167f RF |
250 | ** The return value of `backup-buffer' has changed. |
251 | The second argument is no longer an SELinux context, instead it is an | |
252 | alist of extended attributes as returned by the new function | |
253 | `file-extended-attributes'. The attributes can be applied to another | |
254 | file using `set-file-extended-attributes'. | |
255 | ||
c57b2d76 | 256 | \f |
97a1cd9d | 257 | * Lisp Changes in Emacs 24.4 |
57618ecf | 258 | |
81606b10 RS |
259 | ** Support for filesystem notifications. |
260 | Emacs now supports notifications of filesystem changes, such as | |
261 | creation, modification, and deletion of files. This requires the | |
f282b9f7 EZ |
262 | 'inotify' API on GNU/Linux systems. On MS-Windows systems, this is |
263 | supported for Windows XP and newer versions. | |
81606b10 | 264 | |
add89f61 MA |
265 | ** Changes in autorevert.el |
266 | ||
267 | --- | |
268 | *** If Emacs is compiled with file notification support, notifications | |
269 | are used instead of checking the time stamp of the files. You can | |
270 | disable this by setting the user option `auto-revert-use-notify' to | |
271 | nil. Alternatively, a regular expression of directories to be | |
272 | excluded from file notifications can be specified by | |
273 | `auto-revert-notify-exclude-dir-regexp'. | |
274 | ||
275 | --- | |
276 | *** The new user option `auto-revert-remote-files' enables reversion | |
277 | of remote files when set to non-nil. | |
278 | ||
1c4f115d CY |
279 | ** Face changes |
280 | ||
281 | *** The `face-spec-set' is now analogous to `setq' for face specs. | |
282 | Its third arg now accepts values specifying exactly which face spec to | |
283 | set (defface, custom, or user spec), and it directly sets the relevant | |
284 | property using the supplied face spec. | |
285 | ||
286 | *** Face specs set via Custom themes now replace the `defface' spec | |
287 | rather than inheriting from it (as do face specs set via Customize). | |
288 | ||
073ca75b JL |
289 | *** New face characteristic (supports :underline (:style wave)) |
290 | specifies whether or not the terminal can display a wavy line. | |
291 | ||
f0c954fa GM |
292 | ** Image API |
293 | ||
294 | +++ | |
295 | *** `image-animated-p' is now `image-multi-frame-p'. | |
296 | It returns non-nil for any image that contains multiple frames, | |
297 | whether or not it specifies a frame delay. | |
298 | ||
299 | +++ | |
300 | *** When animating images that do not specify a frame delay, | |
301 | Emacs uses `image-default-frame-delay'. | |
302 | ||
303 | +++ | |
304 | *** New functions `image-current-frame' and `image-show-frame' for getting | |
305 | and setting the current frame of a multi-frame image. | |
306 | ||
855b17af | 307 | ** time-to-seconds is not obsolete any more. |
231d8498 | 308 | ** New function special-form-p. |
57618ecf SM |
309 | ** Docstrings can be made dynamic by adding a `dynamic-docstring-function' |
310 | text-property on the first char. | |
311 | ||
32e5c58c SM |
312 | ** The `defalias-fset-function' property lets you catch calls to defalias |
313 | and redirect them to your own function instead of `fset'. | |
314 | ||
97976f9f PE |
315 | ** The 9th element returned by `file-attributes' is now unspecified. |
316 | Formerly, it was t if the file's gid would change if file were deleted | |
317 | and recreated. This value has been inaccurate for years on many | |
318 | platforms, and nobody seems to have noticed or cared. | |
319 | ||
320 | ** The function `file-ownership-preserved-p' now has an optional | |
321 | argument GROUP which causes it check for file group too. This can be | |
322 | used in place of the 9th element of `file-attributes'. | |
323 | ||
324 | ** New functions `group-gid' and `group-real-gid'. | |
325 | ||
7c3d167f RF |
326 | ** The 6th argument to `copy-file' has been renamed to |
327 | `preserve-extended-attributes' as it now handles both SELinux context | |
328 | and ACL entries. | |
329 | ||
c57b2d76 | 330 | \f |
97a1cd9d | 331 | * Changes in Emacs 24.4 on Non-Free Operating Systems |
95a32efb | 332 | |
5248293f GM |
333 | +++ |
334 | ** The "generate a backtrace on fatal error" feature now works on MS Windows. | |
335 | The backtrace is written to the 'emacs_backtrace.txt' file in the | |
336 | directory where Emacs was running. | |
337 | ||
8549f9e8 EZ |
338 | +++ |
339 | ** The variable `buffer-file-type' is no longer supported. | |
340 | Setting it has no effect, and %t in the mode-line format is ignored. | |
341 | Likewise, `file-name-buffer-file-type-alist' is now obsolete, and | |
342 | modifying it has no effect. | |
343 | ||
c57b2d76 GM |
344 | ** Improved fullscreen support on Mac OS X. |
345 | Both native (>= OSX 10.7) and "old style" fullscreen are supported. | |
346 | Customize `ns-use-native-fullscreen' to change style. For >= 10.7 | |
347 | native is the default. | |
348 | ||
95a32efb | 349 | \f |
2a1e2476 | 350 | * Installation Changes in Emacs 24.3 |
b8df54ff | 351 | |
6bc66c10 | 352 | ** The default X toolkit is now Gtk+ version 3. |
823b2fb6 GM |
353 | If you don't pass `--with-x-toolkit' to configure, or if you use |
354 | `--with-x-toolkit=gtk' or `--with-x-toolkit=yes', configure will try | |
355 | to build with Gtk+ version 3, and if that fails, try Gtk+ version 2. | |
d71a6517 | 356 | You can explicitly require a specific version by passing |
823b2fb6 | 357 | `--with-x-toolkit=gtk2' or `--with-x-toolkit=gtk3' to configure. |
da3d2105 | 358 | |
6bc66c10 | 359 | ** New configure option `--enable-link-time-optimization', to utilize |
da3d2105 DA |
360 | an appropriate feature provided by GCC since version 4.5.0. |
361 | ||
33cb2043 GM |
362 | ** New configure option `--without-all' to disable most of the optional |
363 | features (image support, etc.) that are normally enabled by default. | |
b8df54ff | 364 | |
33cb2043 GM |
365 | ** New configure option `--enable-gcc-warnings' (for developing/debugging |
366 | Emacs). If building with GCC, this enables compile-time checks that | |
64420fcd GM |
367 | warn/give errors about possibly-questionable C code. On a recent GNU |
368 | system there should be no warnings; on older and on non-GNU systems | |
369 | the results may be useful to developers. | |
b8df54ff | 370 | |
823b2fb6 | 371 | ** The configure option `--enable-use-lisp-union-type' has been |
6bc66c10 | 372 | renamed to `--enable-check-lisp-object-type', as the resulting |
d71a6517 GM |
373 | Lisp_Object type no longer uses a union to implement the compile time |
374 | check that this option enables. | |
375 | ||
823b2fb6 | 376 | ** The configure option `--disable-maintainer-mode' has been removed, |
501390c5 PE |
377 | as it was confusingly-named and rarely useful. |
378 | ||
f14a4380 GM |
379 | ** The configure options `--program-prefix', `--program-suffix', and |
380 | `--program-transform-name' apply to more than just the installed | |
381 | binaries. Now they also affect the man pages, icons, and the | |
382 | etc/emacs.desktop file; but not the info pages, since this would break | |
383 | links between the various manuals. | |
1a9c6830 | 384 | |
823b2fb6 GM |
385 | ** You can use `NO_BIN_LINK=t make install' to prevent the installation |
386 | overwriting "emacs" in the installation bin/ directory with a link | |
6bc66c10 | 387 | to "emacs-VERSION". |
823b2fb6 | 388 | |
a4a18b8b GM |
389 | ** Emacs uses libtinfo in preference to libncurses, if available. |
390 | ||
187e9b90 GM |
391 | ** On FreeBSD and NetBSD, configure no longer adds /usr/local/lib and |
392 | /usr/pkg/lib to the linker search path. You must add them yourself if | |
393 | you want them. | |
394 | ||
6bc66c10 | 395 | ** The standalone scripts `rcs-checkin' and `vcdiff' have been removed |
276d5f5d GM |
396 | (from the bin and libexec directories, respectively). The former is |
397 | no longer relevant, the latter is replaced by lisp (in vc-sccs.el). | |
398 | ||
a1ed8b05 | 399 | \f |
2a1e2476 | 400 | * Startup Changes in Emacs 24.3 |
e5fcdb5e GM |
401 | |
402 | ** Emacs no longer searches for `leim-list.el' files beneath the standard | |
403 | lisp/ directory. There should not be any there anyway. If you have | |
823b2fb6 | 404 | been adding them there, put them somewhere else; e.g., site-lisp. |
e5fcdb5e | 405 | |
4107c81e GM |
406 | ** The `--no-site-lisp' command line option now works for Nextstep builds. |
407 | ||
a1ed8b05 | 408 | \f |
2a1e2476 | 409 | * Changes in Emacs 24.3 |
a1ed8b05 | 410 | |
6bc66c10 | 411 | ** Help |
c89926a5 | 412 | |
6bc66c10 | 413 | *** `C-h f' (`describe-function') can now perform autoloading. |
c89926a5 CY |
414 | When this command is called for an autoloaded function whose docstring |
415 | contains a key substitution construct, that function's library is | |
416 | automatically loaded, so that the documentation can be shown | |
417 | correctly. To disable this, set `help-enable-auto-load' to nil. | |
418 | ||
419 | *** `C-h f' now reports previously-autoloaded functions as "autoloaded", | |
420 | even after their associated libraries have been loaded (and the | |
421 | autoloads have been redefined as functions). | |
422 | ||
6bc66c10 | 423 | ** ImageMagick |
cd996018 | 424 | |
6bc66c10 GM |
425 | *** Images displayed via ImageMagick now support transparency and the |
426 | :background image specification property. | |
cd996018 | 427 | |
6bc66c10 | 428 | *** When available, ImageMagick support is automatically enabled. |
c505aaeb CY |
429 | It is no longer necessary to call `imagemagick-register-types' |
430 | explicitly to install ImageMagick image types; that function is called | |
7d806bfe | 431 | automatically at startup, or when customizing an imagemagick- option. |
2f940384 | 432 | |
c505aaeb | 433 | *** Setting `imagemagick-types-inhibit' to t now disables the use of |
823b2fb6 GM |
434 | ImageMagick to view images. (You must call `imagemagick-register-types' |
435 | afterwards if you do not use customize to change this.) | |
2f940384 | 436 | |
7afbaca4 | 437 | *** The new variable `imagemagick-enabled-types' also affects which |
60b5f187 GM |
438 | ImageMagick types are treated as images. The function |
439 | `imagemagick-filter-types' returns the list of types that will be | |
440 | treated as images. | |
c505aaeb | 441 | |
6bc66c10 GM |
442 | ** Minibuffer |
443 | ||
444 | *** In minibuffer filename prompts, `C-M-f' and `C-M-b' now move to the | |
445 | next and previous path separator, respectively. | |
c505aaeb | 446 | |
6bc66c10 GM |
447 | *** `minibuffer-electric-default-mode' can shorten "(default ...)" to "[...]" |
448 | in minibuffer prompts. Just set `minibuffer-eldef-shorten-default' | |
449 | non-nil before enabling the mode. | |
450 | ||
451 | ** Mode line | |
452 | ||
453 | *** New option `mode-line-default-help-echo' specifies the help text | |
454 | (shown in a tooltip or in the echo area) for any part of the mode line | |
455 | that does not have its own specialized help text. | |
456 | ||
457 | *** You can now click mouse-3 in the coding system indicator to invoke | |
458 | `set-buffer-file-coding-system'. | |
459 | ||
460 | ** Server and client | |
2f940384 | 461 | |
f938eda9 CY |
462 | *** emacsclient now obeys string values for `initial-buffer-choice', |
463 | if it is told to open a new frame without specifying any file to visit | |
464 | or expression to evaluate. | |
db80bdc8 | 465 | |
f938eda9 | 466 | *** New option `server-auth-key' specifies a shared server key. |
f938eda9 CY |
467 | |
468 | ** Emacs now generates backtraces on fatal errors. | |
469 | On encountering a fatal error, Emacs now outputs a textual description | |
470 | of the fatal signal, and a short backtrace on platforms like glibc | |
5248293f | 471 | that support backtraces. |
2e2d2a13 | 472 | |
6bc66c10 GM |
473 | ** `C-x C-q' is now bound to the new minor mode `read-only-mode'. |
474 | This minor mode replaces `toggle-read-only', which is now obsolete. | |
475 | ||
476 | ** Most `y-or-n' prompts now allow you to scroll the selected window. | |
477 | Typing `C-v' or `M-v' at a y-or-n prompt scrolls forward or backward | |
478 | respectively, without exiting from the prompt. | |
479 | ||
480 | ** In the Package Menu, newly-available packages are listed as "new", | |
481 | and sorted above the other "available" packages by default. | |
482 | ||
f938eda9 CY |
483 | ** If your Emacs was built from a bzr checkout, the new variable |
484 | `emacs-bzr-version' contains information about the bzr revision used. | |
de6ff46d | 485 | |
6bc66c10 | 486 | ** New option `create-lockfiles' specifies usage of lockfiles. |
f938eda9 CY |
487 | It defaults to t. Changing it to nil inhibits the creation of lock |
488 | files (use this with caution). | |
dc0f75c8 | 489 | |
6bc66c10 GM |
490 | ** New option `enable-remote-dir-locals', if non-nil, allows directory-local |
491 | variables on remote hosts. | |
21ffb35a | 492 | |
f85f636a CY |
493 | ** The entry for PCL-CVS has been removed from the Tools menu. |
494 | The PCL-CVS commands are still available via the keyboard. | |
495 | ||
6bc66c10 GM |
496 | ** Using "unibyte: t" in Lisp source files is obsolete. |
497 | Use "coding: raw-text" instead. | |
498 | ||
e78e7e48 CY |
499 | ** In the buffer made by `M-x report-emacs-bug', the `C-c m' binding |
500 | has been changed to `C-c M-i' (`report-emacs-bug-insert-to-mailer'). | |
501 | The previous binding, introduced in Emacs 24.1, was a mistake, because | |
502 | `C-c LETTER' bindings are reserved for user customizations. | |
503 | ||
6bc66c10 | 504 | ** Internationalization |
2f940384 | 505 | |
f938eda9 | 506 | *** New language environment: Persian. |
2f940384 | 507 | |
f938eda9 CY |
508 | *** New input method `vietnamese-vni'. |
509 | ||
6bc66c10 | 510 | ** Nextstep (GNUstep / Mac OS X) port |
2f940384 | 511 | |
823b2fb6 | 512 | *** Support for fullscreen and the frame parameter fullscreen. |
2f940384 | 513 | |
1a9c6830 GM |
514 | *** A file dialog is used for open/save operations initiated from the |
515 | menu/toolbar. | |
516 | ||
a1ed8b05 | 517 | \f |
2a1e2476 | 518 | * Editing Changes in Emacs 24.3 |
c25df26e | 519 | |
6bc66c10 | 520 | ** Search and Replace |
d39d3c8e | 521 | |
f938eda9 CY |
522 | *** Non-regexp Isearch now performs "lax" space matching. |
523 | Each sequence of spaces in the supplied search string may match any | |
524 | sequence of one or more whitespace characters, as specified by the | |
525 | variable `search-whitespace-regexp'. (This variable is also used by a | |
823b2fb6 | 526 | similar existing feature for regexp Isearch.) |
2f940384 | 527 | |
f938eda9 CY |
528 | *** New Isearch command `M-s SPC' toggles lax space matching. |
529 | This applies to both ordinary and regexp Isearch. | |
2f940384 | 530 | |
f938eda9 CY |
531 | *** New option `replace-lax-whitespace'. |
532 | If non-nil, `query-replace' uses flexible whitespace matching too. | |
533 | The default is nil. | |
2f940384 | 534 | |
b9cb2387 JL |
535 | *** Global `M-s _' starts a symbol (identifier) incremental search, |
536 | and `M-s _' in Isearch toggles symbol search mode. | |
537 | `M-s c' in Isearch toggles search case-sensitivity. | |
538 | ||
6bc66c10 | 539 | ** Navigation commands |
48de8b12 | 540 | |
6bc66c10 GM |
541 | *** New binding `M-g c' for `goto-char'. |
542 | ||
543 | *** New binding `M-g TAB' for `move-to-column'. | |
544 | ||
545 | *** `M-g TAB' (`move-to-column') prompts for a column number if called | |
546 | interactively with no prefix arg. Previously, it moved to column 1. | |
547 | ||
548 | ** New option `yank-handled-properties' allows processing of text | |
549 | properties on yanked text, in ways that are more general than just | |
550 | removing them (as is done by `yank-excluded-properties'). | |
48de8b12 | 551 | |
48de8b12 CY |
552 | ** New option `delete-trailing-lines' specifies whether |
553 | M-x delete-trailing-whitespace should delete trailing lines at the end | |
554 | of the buffer. It defaults to t. | |
555 | ||
f938eda9 | 556 | ** `C-u M-=' now counts lines/words/characters in the entire buffer. |
826b3235 | 557 | |
48de8b12 CY |
558 | ** `C-x 8 RET' is now bound to `insert-char', which is now a command. |
559 | `ucs-insert' is now an obsolete alias for `insert-char'. | |
b2459884 | 560 | |
48de8b12 CY |
561 | ** The `z' key no longer has a binding in most special modes. |
562 | It used to be bound to `kill-this-buffer', but `z' is too easy to | |
563 | accidentally type. | |
f938eda9 | 564 | |
6bc66c10 GM |
565 | ** New command `C-x r M-w' (`copy-rectangle-as-kill'). |
566 | It copies the region-rectangle as the last rectangle kill. | |
f938eda9 | 567 | |
6bc66c10 | 568 | ** Registers |
f938eda9 | 569 | |
823b2fb6 | 570 | *** `C-x r +' is now overloaded to invoke `append-to-register'. |
f938eda9 | 571 | |
f938eda9 | 572 | *** New option `register-separator' specifies the register containing |
823b2fb6 GM |
573 | the text to put between collected texts for use with |
574 | M-x append-to-register and M-x prepend-to-register. | |
f1f4dba0 | 575 | |
a1ed8b05 | 576 | \f |
2a1e2476 | 577 | * Changes in Specialized Modes and Packages in Emacs 24.3 |
ae4969c2 | 578 | |
6bc66c10 | 579 | ** Common Lisp emulation (CL) |
f938eda9 | 580 | |
89660017 | 581 | *** CL's main entry is now (require 'cl-lib). |
823b2fb6 GM |
582 | `cl-lib' is like the old `cl' except that it uses the namespace cleanly; |
583 | i.e., all its definitions have the "cl-" prefix (and internal definitions | |
584 | use the "cl--" prefix). | |
7c1898a7 | 585 | |
823b2fb6 GM |
586 | If `cl' provided a feature under the name `foo', then `cl-lib' |
587 | provides it under the name `cl-foo' instead; with the exceptions of the | |
588 | few `cl' definitions that had to use `foo*' to avoid conflicts with | |
589 | pre-existing Elisp entities. These have been renamed to `cl-foo' | |
590 | rather than `cl-foo*'. | |
7c1898a7 | 591 | |
92246540 | 592 | The old `cl' is now deprecated and is mainly just a bunch of aliases that |
823b2fb6 | 593 | provide the old, non-prefixed names. Some exceptions are listed below: |
7c1898a7 | 594 | |
89660017 SM |
595 | *** `cl-flet' is not like `flet' (which is deprecated). |
596 | Instead it obeys the behavior of Common-Lisp's `flet'. | |
e8693c96 GM |
597 | In particular, in cl-flet function definitions are lexically scoped, |
598 | whereas in flet the scoping is dynamic. | |
89660017 SM |
599 | |
600 | *** `cl-labels' is slightly different from `labels'. | |
823b2fb6 GM |
601 | The difference is that it relies on the `lexical-binding' machinery |
602 | (as opposed to the `lexical-let' machinery used previously) to capture | |
603 | definitions in closures, so such closures will only work if `lexical-binding' | |
604 | is in use. | |
89660017 | 605 | |
f94b04fc | 606 | *** `cl-letf' is not exactly like `letf'. |
4ddedf94 GM |
607 | The only difference is in details that relate to some deprecated usage |
608 | of `symbol-function' in place forms. | |
f94b04fc | 609 | |
89660017 | 610 | *** `progv' was rewritten to use the `let' machinery. |
823b2fb6 GM |
611 | A side effect is that variables without corresponding values are bound |
612 | to nil rather than being made unbound. | |
89660017 | 613 | |
9512f820 GM |
614 | *** The following methods of extending `setf' are obsolete |
615 | (use features from gv.el instead): | |
616 | `define-modify-macro' (use `gv-letplace') | |
031b2ea7 GM |
617 | `defsetf' (use `gv-define-simple-setter' or `gv-define-setter') |
618 | `define-setf-expander' (use `gv-define-setter' or `gv-define-expander') | |
2b4da3ff | 619 | `get-setf-method' no longer exists (see "Incompatible Lisp Changes") |
f94b04fc | 620 | |
6bc66c10 | 621 | ** Diff mode |
f938eda9 | 622 | |
6bc66c10 GM |
623 | *** Changes are now highlighted using the same color scheme as in |
624 | modern VCSes. Deletions are displayed in red (new faces | |
625 | `diff-refine-removed' and `smerge-refined-removed', and new definition | |
626 | of `diff-removed'), insertions in green (new faces `diff-refine-added' | |
627 | and `smerge-refined-added', and new definition of `diff-added'). | |
f938eda9 | 628 | |
6bc66c10 GM |
629 | *** The variable `diff-use-changed-face' defines whether to use the |
630 | face `diff-changed', or `diff-removed' and `diff-added' to highlight | |
631 | changes in context diffs. | |
2f940384 | 632 | |
6bc66c10 GM |
633 | *** The new command `diff-delete-trailing-whitespace' removes trailing |
634 | whitespace introduced by a diff. | |
f938eda9 | 635 | |
6bc66c10 GM |
636 | ** Ediff now uses the same color scheme as Diff mode. |
637 | ||
638 | ** Python mode | |
639 | ||
640 | A new version of python.el, which provides several new features, including: | |
641 | per-buffer shells, better indentation, Python 3 support, and improved | |
642 | shell-interaction compatible with iPython (and virtually any other | |
643 | text based shell). | |
644 | ||
645 | *** Some user options have been replaced/renamed, including (old -> new): | |
646 | **** python-indent -> python-indent-offset | |
647 | **** python-guess-indent -> python-indent-guess-indent-offset | |
648 | **** python-pdbtrack-do-tracking-p -> python-pdbtrack-activate | |
649 | **** python-use-skeletons -> python-skeleton-autoinsert | |
650 | ||
651 | *** Some user options have been removed, including: | |
652 | ||
653 | **** `python-indent-string-contents': Strings are never indented. | |
654 | ||
655 | **** `python-honour-comment-indentation': | |
d5b1b1aa | 656 | Comments are always considered as indentation markers. |
6bc66c10 GM |
657 | |
658 | **** `python-continuation-offset': Indentation is automatically | |
659 | calculated in a pep8 compliant way depending on the context. | |
660 | ||
661 | **** `python-shell-prompt-alist', `python-shell-continuation-prompt-alist': | |
662 | Have no direct mapping as the shell interaction is completely different. | |
663 | ||
664 | **** `python-python-command', `python-jython-command': | |
665 | Replaced by `python-shell-interpreter'. | |
666 | ||
667 | **** `inferior-python-filter-regexp', `python-remove-cwd-from-path', | |
668 | `python-pdbtrack-minor-mode-string', `python-source-modes': | |
669 | No longer relevant. | |
670 | ||
671 | *** Some commands have been replaced (old -> new): | |
672 | **** python-insert-class -> python-skeleton-class | |
673 | **** python-insert-def -> python-skeleton-def | |
674 | **** python-insert-for -> python-skeleton-for | |
675 | **** python-insert-if -> python-skeleton-if | |
676 | **** python-insert-try/except -> python-skeleton-try | |
677 | **** python-insert-try/finally -> python-skeleton-try | |
678 | **** python-insert-while -> python-skeleton-while | |
679 | **** python-find-function -> python-nav-jump-to-defun | |
680 | **** python-next-statement -> python-nav-forward-sentence | |
681 | **** python-previous-statement -> python-nav-backward-sentence | |
682 | **** python-beginning-of-defun-function -> python-nav-beginning-of-defun | |
683 | **** python-end-of-defun-function -> python-nav-end-of-defun | |
684 | **** python-send-buffer -> python-shell-send-buffer | |
685 | **** python-send-defun -> python-shell-send-defun | |
686 | **** python-send-region -> python-shell-send-region | |
687 | **** python-send-region-and-go -> emulate with python-shell-send-region | |
688 | and python-shell-switch-to-shell | |
689 | **** python-send-string -> python-shell-send-string | |
690 | **** python-switch-to-python -> python-shell-switch-to-shell | |
691 | **** python-describe-symbol -> python-eldoc-at-point | |
e76f0800 | 692 | |
f938eda9 CY |
693 | ** D-Bus |
694 | ||
f938eda9 CY |
695 | *** New variables `dbus-compiled-version' and `dbus-runtime-version'. |
696 | ||
f938eda9 CY |
697 | *** The D-Bus object manager interface is implemented. |
698 | ||
f938eda9 CY |
699 | *** Variables of type :(u)int32 and :(u)int64 accept floating points, |
700 | if their value does not fit into Emacs's integer range. | |
701 | ||
823b2fb6 GM |
702 | *** The function `dbus-call-method' is now non-blocking. |
703 | It can be interrupted by `C-g'. `dbus-call-method-non-blocking' is obsolete. | |
f938eda9 | 704 | |
823b2fb6 | 705 | *** Signals can also be sent as unicast messages. |
f938eda9 | 706 | |
f938eda9 | 707 | *** The argument list of `dbus-register-signal' has been extended, |
6bc66c10 | 708 | according to the new match rule types of D-Bus. |
f938eda9 | 709 | |
f938eda9 CY |
710 | *** `dbus-init-bus' supports private connections. |
711 | ||
f938eda9 CY |
712 | *** There is a new function `dbus-setenv'. |
713 | ||
6bc66c10 GM |
714 | ** `desktop-path' no longer includes the "." directory. |
715 | Desktop files are now located in ~/.emacs.d by default. | |
f938eda9 CY |
716 | |
717 | ** Dired | |
2f940384 | 718 | |
f938eda9 CY |
719 | *** `dired-do-async-shell-command' executes each file sequentially |
720 | if the command ends in `;' (when operating on multiple files). | |
721 | Otherwise, it executes the command on each file in parallel. | |
2f940384 | 722 | |
823b2fb6 GM |
723 | *** Typing `M-n' in the minibuffer of `dired-do-chmod', `dired-do-chgrp', |
724 | `dired-do-chown', and `dired-do-touch' yanks the attributes of the | |
f938eda9 | 725 | file at point. |
2f940384 | 726 | |
f938eda9 | 727 | *** When the region is active, `m' (`dired-mark'), `u' (`dired-unmark'), |
823b2fb6 | 728 | `DEL' (`dired-unmark-backward'), and `d' (`dired-flag-file-deletion') |
f938eda9 | 729 | mark/unmark/flag all files in the active region. |
2f940384 | 730 | |
f938eda9 CY |
731 | *** The minibuffer default for `=' (`dired-diff) has changed. |
732 | It is now the backup file for the file at point, if one exists. | |
733 | In Transient Mark mode the default is the file at the active mark. | |
2f940384 | 734 | |
f938eda9 CY |
735 | *** `M-=' is no longer bound to `dired-backup-diff' in Dired buffers. |
736 | The global binding for `M-=', `count-words-region' is in effect. | |
737 | ||
02969baf GM |
738 | ** ERC |
739 | ||
6e5e9b70 GM |
740 | *** New module "notifications", which can send a notification when you |
741 | receive a private message or your nickname is mentioned. | |
02969baf GM |
742 | |
743 | *** ERC will look up server/channel names via auth-source and use any | |
744 | channel keys found. | |
f938eda9 | 745 | |
274f5de6 GM |
746 | *** New option `erc-lurker-hide-list', similar to `erc-hide-list', but |
747 | only applies to messages sent by lurkers. | |
f925b109 | 748 | |
6bc66c10 | 749 | ** reStructuredText mode |
f938eda9 | 750 | |
6bc66c10 GM |
751 | *** Keybindings (see `C-c C-h'), TAB indentation, filling and auto-filling, |
752 | fontification, comment handling, and customization have all been revised | |
753 | and improved. | |
f938eda9 | 754 | |
6bc66c10 | 755 | *** Support for `imenu' and `which-function-mode'. |
f938eda9 | 756 | |
6bc66c10 GM |
757 | *** The reStructuredText syntax is more closely covered. |
758 | Sphinx support has been improved. | |
f938eda9 | 759 | |
6bc66c10 | 760 | *** `rst-insert-list' inserts new list or continues existing lists. |
f938eda9 | 761 | |
6bc66c10 | 762 | *** A negative prefix argument always works for `rst-adjust'. |
f938eda9 | 763 | |
6bc66c10 | 764 | *** The window configuration is reset after displaying a TOC. |
bc7be45d | 765 | |
6bc66c10 | 766 | *** The constant `rst-version' describes the rst.el package version. |
358c19d9 | 767 | |
6bc66c10 | 768 | ** Shell Script mode |
40d8bcb8 | 769 | |
6bc66c10 | 770 | *** Pairing of parens/quotes uses `electric-pair-mode' instead of skeleton-pair. |
40d8bcb8 | 771 | |
6bc66c10 | 772 | *** `sh-electric-here-document-mode' now controls auto-insertion of here-docs. |
40d8bcb8 | 773 | |
6bc66c10 | 774 | *** `sh-use-smie' lets you choose a new indentation and navigation code. |
40d8bcb8 | 775 | |
6bc66c10 | 776 | ** VHDL mode |
40d8bcb8 | 777 | |
6bc66c10 | 778 | *** The free software compiler GHDL is supported (and now the default). |
40d8bcb8 | 779 | |
6bc66c10 | 780 | *** Support for the VHDL-AMS packages has been added/updated. |
40d8bcb8 | 781 | |
6bc66c10 | 782 | *** Updated to the 2002 revision of the VHDL standard. |
40d8bcb8 | 783 | |
6bc66c10 | 784 | *** Accepts \r and \f as whitespace. |
40d8bcb8 | 785 | |
6bc66c10 | 786 | ** Apropos |
40d8bcb8 | 787 | |
6bc66c10 GM |
788 | *** The faces used by Apropos are now directly customizable. |
789 | These faces are named `apropos-symbol', `apropos-keybinding', and so on; | |
790 | see the `apropos' Custom group for details. | |
d13c8be6 | 791 | |
6bc66c10 GM |
792 | *** The old options whose values specified faces to use have been removed |
793 | (i.e. `apropos-symbol-face', `apropos-keybinding-face', etc.). | |
d13c8be6 | 794 | |
6bc66c10 | 795 | ** Buffer Menu |
d13c8be6 | 796 | |
6bc66c10 | 797 | *** This package has been rewritten to use Tabulated List mode. |
d13c8be6 | 798 | |
6bc66c10 GM |
799 | *** Option `Buffer-menu-buffer+size-width' is now obsolete. |
800 | Use `Buffer-menu-name-width' and `Buffer-menu-size-width' instead. | |
d13c8be6 | 801 | |
86e100a6 GM |
802 | ** Calc |
803 | ||
804 | *** Algebraic simplification mode is now the default. | |
805 | To restrict to the limited simplifications given by the former | |
806 | default simplification mode, use `m I'. | |
807 | ||
6bc66c10 | 808 | ** Calendar |
d13c8be6 | 809 | |
6bc66c10 GM |
810 | *** You can customize the header text that appears above each calendar month. |
811 | See the variable `calendar-month-header'. | |
d13c8be6 | 812 | |
6bc66c10 | 813 | *** New LaTeX calendar style, produced by `cal-tex-cursor-week2-summary'. |
ee97deee | 814 | |
6bc66c10 GM |
815 | *** The calendars produced by cal-html include holidays. |
816 | Customize `cal-html-holidays' to change this. | |
8b0823d6 | 817 | |
6bc66c10 | 818 | ** Compile has a new option `compilation-always-kill'. |
42917e79 | 819 | |
6bc66c10 | 820 | ** Customize |
35d98877 | 821 | |
6bc66c10 | 822 | *** `custom-reset-button-menu' now defaults to t. |
35d98877 | 823 | |
6bc66c10 GM |
824 | *** Non-option variables are never matched in `customize-apropos' and |
825 | `customize-apropos-options' (i.e., the prefix argument does nothing for | |
826 | these commands now). | |
782fbf2a | 827 | |
f938eda9 | 828 | ** Term |
782fbf2a | 829 | |
823b2fb6 GM |
830 | *** The variables `term-default-fg-color' and `term-default-bg-color' |
831 | are now deprecated in favor of the customizable face `term'. | |
fc72b15c | 832 | |
02969baf GM |
833 | *** You can customize how to display ANSI terminal colors and styles |
834 | by customizing the corresponding `term-color-<COLOR>', | |
835 | `term-color-underline' and `term-color-bold' faces. | |
cf20dee0 | 836 | |
05ecb497 | 837 | ** Tramp |
2f940384 | 838 | |
02969baf | 839 | *** The syntax has been extended in order to allow ad-hoc proxy definitions. |
05ecb497 | 840 | |
823b2fb6 | 841 | *** Remote processes are now also supported on remote MS-Windows hosts. |
05ecb497 | 842 | |
ce7b18ec | 843 | ** URL |
2f940384 | 844 | |
ce7b18ec CY |
845 | *** Structs made by `url-generic-parse-url' have nil `attributes' slot. |
846 | Previously, this slot stored semicolon-separated attribute-value pairs | |
847 | appended to some imap URLs, but this is not compatible with RFC 3986. | |
823b2fb6 | 848 | So now the `filename' slot stores the entire path and query components, |
ce7b18ec | 849 | and the `attributes' slot is always nil. |
2f940384 | 850 | |
ce7b18ec CY |
851 | *** New function `url-encode-url' for encoding a URI string. |
852 | The `url-retrieve' function now uses this to encode its URL argument, | |
853 | in case that is not properly encoded. | |
854 | ||
6bc66c10 GM |
855 | ** notifications.el supports now version 1.2 of the Notifications API. |
856 | The function `notifications-get-capabilities' returns the supported | |
857 | server properties. | |
f938eda9 | 858 | |
6bc66c10 GM |
859 | ** Flymake uses fringe bitmaps to indicate errors and warnings. |
860 | See `flymake-fringe-indicator-position', `flymake-error-bitmap' and | |
861 | `flymake-warning-bitmap'. | |
f938eda9 | 862 | |
6bc66c10 GM |
863 | ** The FFAP option `ffap-url-unwrap-remote' can now be a list of strings, |
864 | specifying URL types that should be converted to remote file names at | |
865 | the FFAP prompt. The default is now '("ftp"). | |
f938eda9 | 866 | |
6bc66c10 GM |
867 | ** New Ibuffer `derived-mode' filter, bound to `/ M'. |
868 | The old binding for `/ M' (filter by used-mode) is now bound to `/ m'. | |
f938eda9 | 869 | |
6bc66c10 GM |
870 | ** New option `mouse-avoidance-banish-position' specifies where the |
871 | `banish' mouse avoidance setting moves the mouse. | |
ce7b18ec | 872 | |
6bc66c10 GM |
873 | ** In Perl mode, new option `perl-indent-parens-as-block' causes non-block |
874 | closing brackets to be aligned with the line of the opening bracket. | |
f938eda9 | 875 | |
6bc66c10 | 876 | ** In Proced mode, new command `proced-renice' renices marked processes. |
f938eda9 | 877 | |
6bc66c10 GM |
878 | ** New option `async-shell-command-buffer' specifies the buffer to use |
879 | for a new asynchronous `shell-command' when the default output buffer | |
880 | `*Async Shell Command*' is already in use. | |
f938eda9 | 881 | |
6bc66c10 GM |
882 | ** SQL mode has a new option `sql-db2-escape-newlines'. |
883 | If non-nil, newlines sent to the command interpreter will be escaped | |
884 | by a backslash. The default does not escape the newlines and assumes | |
885 | that the sql statement will be terminated by a semicolon. | |
f938eda9 | 886 | |
6bc66c10 GM |
887 | ** New command `tabulated-list-sort', bound to `S' in Tabulated List mode |
888 | (and modes that derive from it), sorts the column at point, or the Nth | |
889 | column if a numeric prefix argument is given. | |
f938eda9 | 890 | |
02969baf | 891 | ** `which-func-modes' now defaults to t, so Which Function mode, when |
05b621a6 | 892 | enabled, applies to all applicable major modes. |
f938eda9 | 893 | |
6bc66c10 | 894 | ** `winner-mode-hook' now runs when the mode is disabled, as well as when |
823b2fb6 | 895 | it is enabled. |
f938eda9 | 896 | |
6bc66c10 GM |
897 | ** Follow mode no longer works by using advice. |
898 | The option `follow-intercept-processes' has been removed. | |
899 | ||
900 | ** `javascript-generic-mode' is now an obsolete alias for `js-mode'. | |
f938eda9 | 901 | |
d1069532 SM |
902 | ** Hooks renamed to avoid obsolete "-hooks" suffix: |
903 | *** semantic-lex-reset-hooks -> semantic-lex-reset-functions | |
904 | *** semantic-change-hooks -> semantic-change-functions | |
905 | *** semantic-edits-new-change-hooks -> semantic-edits-new-change-functions | |
906 | *** semantic-edits-delete-change-hooks -> semantic-edits-delete-change-functions | |
907 | *** semantic-edits-reparse-change-hooks -> semantic-edits-reparse-change-functions | |
908 | *** semanticdb-save-database-hooks -> semanticdb-save-database-functions | |
909 | *** c-prepare-bug-report-hooks -> c-prepare-bug-report-hook | |
910 | *** rcirc-sentinel-hooks -> rcirc-sentinel-functions | |
911 | *** rcirc-receive-message-hooks -> rcirc-receive-message-functions | |
912 | *** rcirc-activity-hooks -> rcirc-activity-functions | |
913 | *** rcirc-print-hooks -> rcirc-print-functions | |
914 | *** dbus-event-error-hooks -> dbus-event-error-functions | |
915 | *** eieio-pre-method-execution-hooks -> eieio-pre-method-execution-functions | |
916 | *** checkdoc-style-hooks -> checkdoc-style-functions | |
917 | *** checkdoc-comment-style-hooks -> checkdoc-comment-style-functions | |
918 | *** archive-extract-hooks -> archive-extract-hook | |
919 | *** filesets-cache-fill-content-hooks -> filesets-cache-fill-content-hook | |
920 | *** hfy-post-html-hooks -> hfy-post-html-hook | |
921 | *** nndiary-request-create-group-hooks -> nndiary-request-create-group-functions | |
922 | *** nndiary-request-update-info-hooks -> nndiary-request-update-info-functions | |
923 | *** nndiary-request-accept-article-hooks -> nndiary-request-accept-article-functions | |
924 | *** gnus-subscribe-newsgroup-hooks -> gnus-subscribe-newsgroup-functions | |
f938eda9 | 925 | |
6bc66c10 | 926 | ** Obsolete packages |
2f940384 | 927 | |
797e6e88 SM |
928 | *** assoc.el |
929 | In most cases, assoc+member+push+delq work just as well. | |
930 | And in any case it's just a terrible package: ugly semantics, terrible | |
931 | inefficiency, and not namespace-clean. | |
3c74813a | 932 | *** bruce.el |
b4617547 | 933 | *** cust-print.el |
daed4003 | 934 | *** ledit.el |
82f289a4 | 935 | *** mailpost.el |
d57de7fe | 936 | *** mouse-sel.el |
3c74813a | 937 | *** patcomp.el |
1a9c6830 | 938 | |
a1ed8b05 | 939 | \f |
2a1e2476 | 940 | * Incompatible Lisp Changes in Emacs 24.3 |
b4d3bc10 | 941 | |
6bc66c10 GM |
942 | ** Docstrings starting with `*' no longer indicate user options. |
943 | Only variables defined using `defcustom' are considered user options. | |
944 | The function `user-variable-p' is now an obsolete alias for | |
945 | `custom-variable-p'. | |
090cf9db | 946 | |
6bc66c10 GM |
947 | ** The return values of `defalias', `defun' and `defmacro' have changed, |
948 | and are now undefined. For backwards compatibility, `defun' and | |
949 | `defmacro' currently return the name of the newly defined | |
950 | function/macro, but this should not be relied upon. | |
090cf9db | 951 | |
823b2fb6 GM |
952 | ** `random' by default now returns a different random sequence in |
953 | every Emacs run. Use `(random S)', where S is a string, to set the | |
0e23ef9d PE |
954 | random seed to a value based on S, in order to get a repeatable |
955 | sequence in later calls. | |
956 | ||
d32e47af LM |
957 | ** If the NEWTEXT arg to `replace-match' contains a substring "\?", |
958 | that substring is inserted literally even if the LITERAL arg is | |
959 | non-nil, instead of causing an error to be signaled. | |
960 | ||
2cec368c MR |
961 | ** `select-window' now always makes the window's buffer current. |
962 | It does so even if the window was selected before. | |
963 | ||
6bc66c10 GM |
964 | ** The function `x-select-font' can return a font spec, instead of a |
965 | font name as a string. Whether it returns a font spec or a font name | |
966 | depends on the graphical library. | |
bbf908bc | 967 | |
eeddc531 CY |
968 | ** `face-spec-set' no longer sets frame-specific attributes when the |
969 | third argument is a frame (that usage was obsolete since Emacs 22.2). | |
970 | ||
6bc66c10 | 971 | ** `set-buffer-multibyte' now signals an error in narrowed buffers. |
a59d531e | 972 | |
ab7f1c43 GM |
973 | ** The CL package's `get-setf-method' function no longer exists. |
974 | Generalized variables are now part of core Emacs Lisp, and implemented | |
975 | differently to the way cl.el used to do it. It is not possible to | |
976 | define a compatible replacement for `get-setf-method'. See the file | |
977 | gv.el for internal details of the new implementation. | |
978 | ||
6bc66c10 GM |
979 | ** The arguments of `dbus-register-signal' are no longer just strings, |
980 | but keywords or keyword-string pairs. The old argument list will | |
981 | still be supported for Emacs 24.x. | |
72b255c7 | 982 | |
6bc66c10 | 983 | ** Miscellaneous name changes |
823b2fb6 GM |
984 | Some Lisp symbols have been renamed to correct their spelling, |
985 | or to be more consistent with standard Emacs terminology. | |
72b255c7 | 986 | |
72b255c7 | 987 | *** Renamed functions |
72b255c7 PE |
988 | **** hangul-input-method-inactivate -> hangul-input-method-deactivate |
989 | **** inactivate-input-method -> deactivate-input-method | |
990 | **** quail-inactivate -> quail-deactivate | |
991 | **** robin-inactivate -> robin-deactivate | |
992 | **** viper-inactivate-input-method -> viper-deactivate-input-method | |
993 | **** viper-inactivate-input-method-action -> | |
994 | viper-deactivate-input-method-action | |
995 | **** ucs-input-inactivate -> ucs-input-deactivate | |
996 | ||
997 | *** Renamed hooks | |
998 | The old hooks are still supported for backward compatibility, but they | |
999 | are deprecated and will be removed eventually. | |
72b255c7 PE |
1000 | **** input-method-inactivate-hook -> input-method-deactivate-hook |
1001 | **** robin-inactivate-hook -> robin-deactivate-hook | |
1002 | **** quail-inactivate-hook -> quail-deactivate-hook | |
1003 | ||
6bc66c10 | 1004 | *** Renamed variables |
72b255c7 PE |
1005 | **** follow-deactive-menu -> follow-inactive-menu |
1006 | **** inactivate-current-input-method-function -> | |
1007 | deactivate-current-input-method-function | |
1008 | ||
02969baf GM |
1009 | ** Some obsolete functions, variables, and faces have been removed: |
1010 | *** `last-input-char', `last-command-char', `unread-command-char' | |
78f3273a CY |
1011 | *** `facemenu-unlisted-faces' |
1012 | *** `rmail-decode-mime-charset' | |
a5f2b6ec CY |
1013 | *** `iswitchb-read-buffer' |
1014 | *** `sc-version', `sc-submit-bug-report' | |
1015 | *** `set-char-table-default' | |
02969baf | 1016 | *** `string-to-sequence' (use `string-to-list' or `string-to-vector') |
a5f2b6ec | 1017 | *** `compile-internal' |
02969baf | 1018 | *** `modeline' |
59f7af81 | 1019 | *** `mode-line-inverse-video' |
02969baf | 1020 | *** `follow-mode-off-hook' |
a5f2b6ec | 1021 | *** `cvs-commit-buffer-require-final-newline' |
63820c5c | 1022 | (use `log-edit-require-final-newline' instead) |
a5f2b6ec CY |
1023 | *** `cvs-changelog-full-paragraphs' |
1024 | (use `log-edit-changelog-full-paragraphs' instead) | |
1025 | *** `cvs-diff-ignore-marks', `cvs-diff-buffer-name' | |
1026 | *** `vc-ignore-vc-files' (use `vc-handled-backends' instead) | |
1027 | *** `vc-master-templates' (use `vc-handled-backends' instead) | |
1028 | *** `vc-checkout-carefully' | |
78f3273a | 1029 | |
a1ed8b05 | 1030 | \f |
93e0bed6 | 1031 | * Lisp Changes in Emacs 24.3 |
ef24141c | 1032 | |
2ee3d7f0 | 1033 | ** CL-style generalized variables are now in core Elisp. |
f938eda9 | 1034 | `setf' is autoloaded; `push' and `pop' accept generalized variables. |
ebdbfb95 GM |
1035 | You can define your own generalized variables using `gv-define-simple-setter', |
1036 | `gv-define-setter', etc. | |
2ee3d7f0 | 1037 | |
6bc66c10 GM |
1038 | ** Emacs tries to macroexpand interpreted (non-compiled) files during load. |
1039 | This can significantly speed up execution of non-byte-compiled code, | |
1040 | but can also bump into previously unnoticed cyclic dependencies. | |
1041 | These are generally harmless: they will simply cause the macro calls | |
1042 | to be left for later expansion (as before), but will result in a | |
1043 | warning ("Eager macro-expansion skipped due to cycle") describing the cycle. | |
1044 | You may wish to restructure your code so this does not happen. | |
1045 | ||
1046 | ** New sampling-based Elisp profiler. | |
1047 | Try M-x profiler-start, do some work, and then call M-x profiler-report. | |
1048 | When finished, use M-x profiler-stop. The sampling rate can be based on | |
1049 | CPU time or memory allocations. | |
1050 | ||
500fcedc SM |
1051 | ** `defun' also accepts a (declare DECLS) form, like `defmacro'. |
1052 | The interpretation of the DECLS is determined by `defun-declarations-alist'. | |
1053 | ||
6bc66c10 GM |
1054 | ** New macros `setq-local' and `defvar-local'. |
1055 | ||
1056 | ** Face underlining can now use a wave. | |
2f940384 | 1057 | |
6bc66c10 | 1058 | ** `read-regexp' has a new argument HISTORY; the first argument PROMPT |
cd996018 | 1059 | of `read-regexp' accepts a string ending with a colon and space, and its |
823b2fb6 | 1060 | second argument DEFAULTS can be a list of strings accessible via `M-n' |
cd996018 CY |
1061 | in the minibuffer ahead of other hard-coded useful regexp-related values. |
1062 | More commands use `read-regexp' now to read their regexp arguments. | |
1063 | ||
f938eda9 | 1064 | ** Completion |
500fcedc | 1065 | |
f938eda9 CY |
1066 | *** New function `completion-table-with-quoting' to handle completion |
1067 | in the presence of quoting, such as file completion in shell buffers. | |
f95e9344 | 1068 | |
f938eda9 CY |
1069 | *** New function `completion-table-subvert' to use an existing completion |
1070 | table, but with a different prefix. | |
1071 | ||
6bc66c10 | 1072 | ** Debugger |
f95e9344 | 1073 | |
f938eda9 CY |
1074 | *** New error type and new function `user-error'. |
1075 | These do not trigger the debugger. | |
f95e9344 | 1076 | |
57fc0fee GM |
1077 | *** New option `debugger-bury-or-kill', saying what to do with the |
1078 | debugger buffer when exiting debug. | |
45b82ad0 SM |
1079 | |
1080 | *** Set `debug-on-message' to enter the debugger when a certain | |
1081 | message is displayed in the echo area. This can be useful when trying | |
1082 | to work out which code is doing something. | |
2f940384 | 1083 | |
45b82ad0 SM |
1084 | *** New var `inhibit-debugger', automatically set to prevent accidental |
1085 | recursive invocations. | |
fa2bcf43 | 1086 | |
6bc66c10 | 1087 | ** Window handling |
2f940384 | 1088 | |
6bc66c10 GM |
1089 | *** New command `fit-frame-to-buffer' adjusts the frame height to |
1090 | fit the contents. | |
2f940384 | 1091 | |
6bc66c10 GM |
1092 | *** The command `fit-window-to-buffer' can adjust the frame height |
1093 | if the new option `fit-frame-to-buffer' is non-nil. | |
8e17c9ba | 1094 | |
7fe37cfc GM |
1095 | *** New macro `with-temp-buffer-window', similar to |
1096 | `with-output-to-temp-buffer'. | |
fa2bcf43 | 1097 | |
8e17c9ba MR |
1098 | *** `temp-buffer-resize-mode' no longer resizes windows that have been |
1099 | reused. | |
c5e28e39 | 1100 | |
823b2fb6 | 1101 | *** New option `switch-to-buffer-preserve-window-point' to restore a |
43bcfda6 | 1102 | window's point when switching buffers. |
7c82753d | 1103 | |
6bc66c10 GM |
1104 | *** New display action alist entries `window-height' and `window-width' |
1105 | specify the size of new windows created by `display-buffer'. | |
1106 | ||
1107 | *** New display action alist entry `pop-up-frame-parameters', if | |
1108 | non-nil, specifies frame parameters to give any newly-created frame. | |
7c82753d | 1109 | |
fa2bcf43 MR |
1110 | *** New display action alist entry `inhibit-switch-frame', if non-nil, |
1111 | tells display action functions to avoid changing which frame is | |
1112 | selected. | |
2f940384 | 1113 | |
fa2bcf43 MR |
1114 | *** New display action alist entry `previous-window', if non-nil, |
1115 | specifies window to reuse in `display-buffer-in-previous-window'. | |
2f940384 | 1116 | |
6bc66c10 GM |
1117 | *** New display action functions `display-buffer-below-selected', |
1118 | and `display-buffer-in-previous-window'. | |
1119 | ||
1120 | *** The functions `get-lru-window', `get-mru-window' and `get-largest-window' | |
1121 | now accept a third argument to avoid choosing the selected window. | |
1122 | ||
1123 | *** Additional values recognized for option `window-combination-limit'. | |
5938d519 | 1124 | |
77f1f99c CY |
1125 | *** The following variables are obsolete, as they can be replaced by |
1126 | appropriate entries in the `display-buffer-alist' function introduced | |
1127 | in Emacs 24.1: | |
823b2fb6 | 1128 | **** `dired-shrink-to-fit' |
77f1f99c | 1129 | **** `display-buffer-reuse-frames' |
823b2fb6 | 1130 | **** `display-buffer-function' |
77f1f99c | 1131 | **** `special-display-buffer-names' |
823b2fb6 | 1132 | **** `special-display-frame-alist' |
77f1f99c | 1133 | **** `special-display-function' |
823b2fb6 | 1134 | **** `special-display-regexps' |
77f1f99c | 1135 | |
ab0fa4e4 | 1136 | ** Time |
2f940384 | 1137 | |
ab0fa4e4 PE |
1138 | *** `current-time-string' no longer requires that its argument's year |
1139 | must be in the range 1000..9999. It now works with any year supported | |
1140 | by the underlying C implementation. | |
2f940384 | 1141 | |
f938eda9 CY |
1142 | *** `current-time' now returns extended-format time stamps |
1143 | (HIGH LOW USEC PSEC), where the new PSEC slot specifies picoseconds. | |
1144 | PSEC is typically a multiple of 1000 on current machines. Other | |
823b2fb6 GM |
1145 | functions that use this format, such as `file-attributes' and |
1146 | `format-time-string', have been changed accordingly. Old-format time | |
f938eda9 | 1147 | stamps are still accepted. |
2f940384 | 1148 | |
823b2fb6 | 1149 | *** The format of timers in `timer-list' and `timer-idle-list' is now |
f938eda9 CY |
1150 | [TRIGGERED-P HI-SECS LO-SECS USECS REPEAT-DELAY FUNCTION ARGS IDLE-DELAY PSECS]. |
1151 | The PSECS slot is new, and uses picosecond resolution. It can be | |
823b2fb6 | 1152 | accessed via the new `timer--psecs' accessor. |
2f940384 | 1153 | |
c4132fd4 PE |
1154 | *** Last-modified time stamps in undo lists now are of the form |
1155 | (t HI-SECS LO-SECS USECS PSECS) instead of (t HI-SECS . LO-SECS). | |
1156 | ||
f938eda9 | 1157 | ** Floating point functions now always return special values like NaN, |
823b2fb6 | 1158 | instead of signaling errors, if given invalid args; e.g., (log -1.0). |
f938eda9 CY |
1159 | Previously, they returned NaNs on some platforms but signaled errors |
1160 | on others. The affected functions are acos, asin, tan, exp, expt, | |
1161 | log, log10, sqrt, and mod. | |
1162 | ||
6bc66c10 | 1163 | ** New fringe bitmap `exclamation-mark'. |
f938eda9 | 1164 | |
6bc66c10 GM |
1165 | ** Miscellaneous changes to special forms and macros |
1166 | ||
1167 | *** `defun' and `defmacro' are now macros rather than special forms. | |
1168 | ||
1169 | *** `kbd' is now a function rather than a macro. | |
1170 | ||
1171 | ** Miscellaneous new functions | |
1172 | ||
1173 | *** `set-temporary-overlay-map' sets up a temporary keymap that | |
1174 | takes precedence over most other maps for a short while (normally one key). | |
f938eda9 | 1175 | |
847a0561 | 1176 | *** `autoloadp' tests if its argument is an autoloaded object. |
2f940384 | 1177 | |
847a0561 | 1178 | *** `autoload-do-load' performs the autoloading operation. |
2f940384 | 1179 | |
f938eda9 | 1180 | *** `buffer-narrowed-p' tests if the buffer is narrowed. |
2f940384 | 1181 | |
f938eda9 | 1182 | *** `file-name-base' returns a file name sans directory and extension. |
2f940384 | 1183 | |
f938eda9 | 1184 | *** `function-get' fetches a function property, following aliases. |
c990426a | 1185 | |
f938eda9 | 1186 | *** `posnp' tests if an object is a `posn'. |
f938eda9 | 1187 | |
f938eda9 | 1188 | *** `system-users' returns the user names on the system. |
547d6865 | 1189 | |
f938eda9 | 1190 | *** `system-groups' returns the group names on the system. |
f938eda9 | 1191 | |
f938eda9 | 1192 | *** `tty-top-frame' returns the topmost frame of a text terminal. |
c990426a | 1193 | |
f938eda9 | 1194 | ** The following functions and variables are obsolete: |
847a0561 | 1195 | *** `automount-dir-prefix' (use `directory-abbrev-alist') |
f938eda9 | 1196 | *** `buffer-has-markers-at' |
1a9c6830 | 1197 | *** `macro-declaration-function' (use `macro-declarations-alist') |
847a0561 | 1198 | *** `window-system-version' (provides no useful information) |
93cacb6d | 1199 | *** `dired-pop-to-buffer' (use `dired-mark-pop-up') |
0e2ae83d | 1200 | *** `query-replace-interactive' |
49238e7f | 1201 | *** `font-list-limit' (has had no effect since Emacs < 23) |
86aa551c | 1202 | |
adce950d | 1203 | \f |
93e0bed6 | 1204 | * Changes in Emacs 24.3 on Non-Free Operating Systems |
9078ead6 | 1205 | |
4e98ad15 | 1206 | ** Cygwin builds can use the native MS Windows user interface. |
823b2fb6 | 1207 | Pass `--with-w32' to configure. The default remains the X11 interface. |
53a63be6 | 1208 | |
1a9c6830 | 1209 | ** Two new functions are available in Cygwin builds: |
6e9f7997 DC |
1210 | `cygwin-convert-file-name-from-windows' and |
1211 | `cygwin-convert-file-name-to-windows'. These functions allow Lisp | |
1212 | code to access the Cygwin file-name mapping machinery to convert | |
1213 | between Cygwin and Windows-native file and directory names. | |
de6e3a60 | 1214 | |
4e98ad15 | 1215 | ** When invoked with the -nw switch to run on the Windows text-mode terminal, |
1ab0c851 | 1216 | Emacs now supports `mouse-highlight', help-echo (in the echo area), and |
4e98ad15 GM |
1217 | `mouse-autoselect-window'. |
1218 | ||
1a9c6830 | 1219 | ** On MS Windows Vista and later Emacs now supports symbolic links. |
4e98ad15 | 1220 | |
823b2fb6 | 1221 | ** On MS Windows, you can pass `--without-libxml2' to configure.bat to omit |
4e98ad15 GM |
1222 | support for libxml2, even if its presence is detected. |
1223 | ||
4e98ad15 GM |
1224 | ** On Mac OS X, the Nextstep port requires OS X 10.4 or later. |
1225 | ||
823b2fb6 | 1226 | ** On Mac OS X, configure no longer automatically adds the Fink "/sw" |
4e98ad15 GM |
1227 | directories to the search path. You must add them yourself if you want them. |
1228 | ||
2a1e2476 GM |
1229 | \f |
1230 | * Changes in Emacs 24.2 | |
1231 | ||
5190da91 | 1232 | ** This is mainly a bug-fix release. |
6dad7178 | 1233 | |
9078ead6 | 1234 | \f |
eb199145 | 1235 | * Installation Changes in Emacs 24.1 |
09e18d03 | 1236 | |
31fd3586 GM |
1237 | ** Emacs can be compiled with Gtk+ 3.0 if you pass --with-x-toolkit=gtk3 |
1238 | to configure. Note that other libraries used by Emacs, RSVG and GConf, | |
1239 | also depend on Gtk+. You can disable them with --without-rsvg and | |
1240 | --without-gconf. | |
338648ad | 1241 | |
31fd3586 GM |
1242 | ** Emacs can be compiled with GnuTLS support. |
1243 | This happens by default if a suitably recent version of the library is | |
1244 | found at build time. To prevent this, use the configure option | |
1245 | `--without-gnutls'. See below for GnuTLS features. | |
338648ad | 1246 | |
31fd3586 GM |
1247 | ** Emacs can be compiled with SELinux support. |
1248 | This happens by default if a suitably recent version of the library is | |
1249 | found at build time. To prevent this, use the configure option | |
1250 | `--without-selinux'. See below for SELinux features. | |
aded53ff | 1251 | |
31fd3586 GM |
1252 | ** Emacs can be compiled with ImageMagick support. |
1253 | This happens by default if a suitably recent version of the library is | |
1254 | found at build time. To prevent this, use the configure option | |
1255 | `--without-imagemagick'. See below for ImageMagick features. | |
c1f10868 | 1256 | This feature is not available for the Nextstep or MS ports. |
d9170db5 | 1257 | |
043efd56 GM |
1258 | ** Emacs can be compiled with libxml2 support. |
1259 | This happens by default if a suitably recent version of the library is | |
1260 | found at build time. To prevent this, use the configure option | |
1261 | `--without-xml2'. See below for libxml2 features. | |
1262 | ||
7d301ae6 CY |
1263 | ** By default, the installed Info and man pages are compressed. |
1264 | You can disable this by configuring --without-compress-info. | |
1265 | ||
7d301ae6 | 1266 | ** New configure option --with-wide-int. |
81eafe29 | 1267 | With it, Emacs integers typically have 62 bits, even on 32-bit machines. |
0a768890 PE |
1268 | On 32-bit hosts, this raises the limit on buffer sizes from about 512 MiB |
1269 | to about 2 GiB. | |
81eafe29 | 1270 | |
7d301ae6 | 1271 | ** New configure options: --with-mmdf, --with-mail-unlink, --with-mailhost. |
31fd3586 GM |
1272 | These provide no new functionality, they just remove the need to edit |
1273 | lib-src/Makefile by hand in order to use the associated features. | |
1274 | ||
7d301ae6 | 1275 | ** New configure option --enable-use-lisp-union-type. |
31fd3586 GM |
1276 | This is only useful for Emacs developers to debug certain types of bugs. |
1277 | This is not a new feature; only the configure flag is new. | |
041d709f CY |
1278 | |
1279 | ** The standalone programs digest-doc and sorted-doc are removed. | |
1280 | Emacs now uses Lisp commands `doc-file-to-man' and `doc-file-to-info'. | |
1281 | ||
041d709f CY |
1282 | ** The standalone program `fakemail' is removed. |
1283 | If you need it, feedmail.el provides a superset of the functionality. | |
1284 | ||
0bfd685e | 1285 | \f |
eb199145 | 1286 | * Startup Changes in Emacs 24.1 |
4a263588 | 1287 | |
198a7a97 | 1288 | ** The --unibyte, --multibyte, --no-multibyte, and --no-unibyte |
adbf62ff GM |
1289 | command line arguments, and the EMACS_UNIBYTE environment variable, no |
1290 | longer have any effect. (They were declared obsolete in Emacs 23.) | |
198a7a97 | 1291 | |
66b7b0fe | 1292 | ** New command line option `--no-site-lisp' removes site-lisp directories |
1b5e5b0c GM |
1293 | from load-path. -Q now implies this. This option does not affect the |
1294 | EMACSLOADPATH environment variable (and hence has no effect for | |
c8d59ba3 | 1295 | Nextstep builds). |
66b7b0fe | 1296 | |
0bfd685e | 1297 | \f |
eb199145 | 1298 | * Changes in Emacs 24.1 |
7841339b | 1299 | |
a2a25d24 | 1300 | ** Completion |
fdeb32ec | 1301 | |
dfdb4cad CY |
1302 | *** Many packages now use the `completion-at-point' command, |
1303 | rather than implementing separate completion commands. | |
1304 | ||
de0bde62 | 1305 | *** `completion-at-point' now handles tags and semantic completion. |
dfdb4cad | 1306 | |
a2a25d24 SM |
1307 | *** Completion in a non-minibuffer now tries to detect the end of completion |
1308 | and pops down the *Completions* buffer accordingly. | |
dfdb4cad CY |
1309 | |
1310 | *** New option `completion-cycle-threshold' allows completion cycling. | |
1311 | ||
1312 | *** New option `completion-category-overrides' for overriding the | |
2c719188 | 1313 | default completion style in certain circumstances. |
dfdb4cad | 1314 | |
a2a25d24 | 1315 | *** New completion style `substring'. |
dfdb4cad CY |
1316 | |
1317 | *** Completion of buffer names uses `substring' completion by default. | |
1318 | ||
1319 | *** The option `widget-complete-field' has been removed. | |
620c53a6 | 1320 | |
6870aaef | 1321 | ** Mail changes |
dfdb4cad | 1322 | |
7d301ae6 CY |
1323 | *** The first time you try sending mail, Emacs asks for a mail method. |
1324 | This is implemented by a new default for `send-mail-function', which | |
1325 | is `sendmail-query-once'. This offers to use the smtpmail package, or | |
1326 | to use the old defaults relying on external mail facilities | |
1327 | (`sendmail-send-it' on GNU/Linux and other Unix-like systems, and | |
1328 | `mailclient-send-it' on Windows). | |
dfdb4cad | 1329 | |
e78e7e48 CY |
1330 | *** Typing `C-c m' in the buffer made by `M-x report-emacs-bug' |
1331 | transfers the report to your desktop's preferred mail client, if there | |
1332 | is one. This uses either the "xdg-email" utility, or Mac OS's "open" | |
1333 | command. | |
dfdb4cad | 1334 | |
7d301ae6 CY |
1335 | *** See Changes in Specialized Modes and Packages for SMTPmail changes |
1336 | and Mail mode changes | |
3f88cd72 | 1337 | |
041d709f | 1338 | ** Emacs server and client changes |
dfdb4cad | 1339 | |
7d301ae6 | 1340 | *** New option `server-port' specifies the port for TCP Emacs servers. |
dfdb4cad | 1341 | |
041d709f | 1342 | *** New emacsclient argument -q/--quiet suppresses some status messages. |
dfdb4cad | 1343 | |
7d301ae6 CY |
1344 | *** New emacsclient argument --frame-parameters specifies the frame |
1345 | parameters of any newly-created graphical frame. | |
dfdb4cad CY |
1346 | |
1347 | *** If emacsclient shuts down due to Emacs signaling an error, | |
1348 | its exit status is 1. | |
1349 | ||
041d709f CY |
1350 | *** New emacsclient argument --parent-id ID. |
1351 | This opens a client frame in parent X window ID, via XEmbed, similar | |
1352 | to the --parent-id argument to Emacs. | |
1353 | ||
d0ce9f8c MB |
1354 | ** Internationalization changes |
1355 | ||
d0ce9f8c | 1356 | *** Emacs now supports display and editing of bidirectional text. |
7d301ae6 CY |
1357 | Right-to-left (RTL) scripts, such as Arabic, Farsi, and Hebrew, are |
1358 | displayed in the correct visual order as expected by users of those | |
dfdb4cad CY |
1359 | scripts. The display reordering is a "full bidirectionality" class |
1360 | implementation of the Unicode Bidirectional Algorithm (UBA). Buffers | |
1361 | with no RTL text should look exactly the same as before. | |
f4b6ba46 | 1362 | |
041d709f | 1363 | **** New buffer-local variable `bidi-display-reordering'. |
7d301ae6 | 1364 | To disable display reordering in a buffer, change this to nil. |
d20e1419 | 1365 | |
041d709f CY |
1366 | **** New buffer-local variable `bidi-paragraph-direction'. |
1367 | If nil (the default), Emacs determines the base direction of each | |
dfdb4cad CY |
1368 | paragraph from its text, as specified by the UBA. Setting the value |
1369 | to `right-to-left' or `left-to-right' forces a base direction on each | |
1370 | paragraph. | |
f4b6ba46 | 1371 | |
7d301ae6 CY |
1372 | Paragraphs with right-to-left base direction are displayed starting at |
1373 | the right window edge. | |
f1816485 | 1374 | |
dfdb4cad CY |
1375 | *** Enhanced support for characters with no glyphs in available fonts, |
1376 | or, on text terminals, characters that cannot be encoded by the | |
1377 | terminal coding system. The new option `glyphless-char-display-control' | |
1378 | specifies how to display them: as a hexadecimal code in a box, a thin | |
1379 | 1-pixel space, an empty box, etc. | |
d0ce9f8c | 1380 | |
9702b7a1 GM |
1381 | *** New input methods for Farsi and Bulgarian |
1382 | (farsi-isiri-9147, farsi-transliterate-banan, bulgarian-alt-phonetic). | |
041d709f | 1383 | |
939db9ac CY |
1384 | *** `nobreak-char-display' now also highlights Unicode hyphen chars |
1385 | (U+2010 and U+2011). | |
1386 | ||
7d301ae6 | 1387 | *** New Hebrew translation of the Emacs Tutorial. |
31fd3586 GM |
1388 | Type `C-u C-h t' to choose it in case your language setup doesn't |
1389 | automatically select it. | |
1390 | ||
7d301ae6 CY |
1391 | ** An Emacs Lisp package manager is now included. |
1392 | This is a convenient way to download and install additional packages, | |
1393 | from a package repository at http://elpa.gnu.org. | |
dfdb4cad | 1394 | |
7d301ae6 CY |
1395 | *** M-x list-packages shows a list of packages, which can be |
1396 | selected for installation. | |
dfdb4cad | 1397 | |
7d301ae6 | 1398 | *** New command `describe-package', bound to `C-h P'. |
dfdb4cad | 1399 | |
7d301ae6 CY |
1400 | *** By default, all installed packages are loaded automatically when |
1401 | Emacs starts up. To disable this, set `package-enable-at-startup' to | |
1402 | nil. To specify the packages to load, customize `package-load-list'. | |
16a91140 | 1403 | |
dfdb4cad CY |
1404 | ** Custom theme changes |
1405 | ||
7d301ae6 CY |
1406 | *** New command `M-x customize-themes', which provides a convenient |
1407 | interface for enabling and disabling Custom themes. | |
dfdb4cad | 1408 | |
7d301ae6 | 1409 | *** New option `custom-theme-load-path' is the load path for themes. |
dfdb4cad CY |
1410 | Emacs no longer looks for Custom themes in `load-path'. The default |
1411 | value of `custom-theme-load-path' says to look for themes in | |
1412 | `custom-theme-directory', followed by a subdirectory of | |
1413 | `data-directory' named "themes/", which contains a small selection of | |
1414 | built-in Custom themes. | |
1415 | ||
7d301ae6 CY |
1416 | *** New option `custom-safe-themes' records known-safe theme files. |
1417 | If a theme is not in this list, Emacs queries before loading it, and | |
1418 | offers to save the theme to `custom-safe-themes' automatically. By | |
1419 | default, all themes included in Emacs are treated as safe. | |
b7d65a5f | 1420 | |
7d301ae6 | 1421 | ** Improved GTK integration |
dfdb4cad | 1422 | |
7d301ae6 | 1423 | *** GTK scroll-bars are now placed on the right by default. |
dfdb4cad CY |
1424 | The function `set-scroll-bar-mode' can change this. |
1425 | ||
7d301ae6 | 1426 | *** GTK tool bars can have just text, just images or images and text. |
dfdb4cad CY |
1427 | Customize `tool-bar-style' to choose the style. On a Gnome desktop, |
1428 | the default is taken from desktop settings. | |
1429 | ||
1430 | *** GTK tool bars can be placed on any edge of the frame. | |
7d301ae6 CY |
1431 | The frame-parameter tool-bar-position controls this. It takes the |
1432 | values top, left, right or bottom. The Options => Show/Hide menu has | |
1433 | entries for this. | |
dfdb4cad | 1434 | |
7d301ae6 CY |
1435 | *** The default colors for selected text (the `region' face) are taken |
1436 | from the GTK theme when Emacs is built with GTK. | |
dfdb4cad | 1437 | |
7d301ae6 CY |
1438 | *** Emacs uses GTK tooltips by default if built with GTK. |
1439 | You can disable this by changing `x-gtk-use-system-tooltips' to nil. | |
a5bee597 | 1440 | |
dfdb4cad CY |
1441 | ** Graphical interface changes |
1442 | ||
1443 | *** On graphical displays, the mode-line no longer ends in dashes. | |
1444 | Also, the first dash (which does not indicate anything) is just | |
1445 | displayed as a space. | |
1446 | ||
1447 | *** `menu-bar-select-buffer-function' lets you choose another operation | |
1448 | instead of `switch-to-buffer' when selecting an item in the Buffers menu. | |
1449 | ||
1450 | *** Lucid menus and dialogs can display antialiased fonts if Emacs is | |
1451 | built with Xft. These fonts can be set via X resources, for example: | |
1452 | Emacs.pane.menubar.font: Courier-12 | |
1453 | ||
7d301ae6 | 1454 | ** Exiting changes |
dfdb4cad | 1455 | |
7d301ae6 | 1456 | *** Emacs now calls `kill-emacs' if it receives SIGTERM or SIGHUP, |
dfdb4cad CY |
1457 | or if it receives a SIGINT signal in batch mode. |
1458 | ||
7d301ae6 CY |
1459 | *** `kill-emacs-hook' is now also run in batch mode. |
1460 | Third-party code which adds to `kill-emacs-hook' should check if they | |
1461 | do the right thing in batch mode. | |
9c524fcb | 1462 | |
041d709f | 1463 | ** Scrolling changes |
dfdb4cad | 1464 | |
041d709f | 1465 | *** New scrolling commands `scroll-up-command' and `scroll-down-command' |
0a19a6f8 | 1466 | (bound to C-v/[next] and M-v/[prior]) do not signal errors at top/bottom |
7d301ae6 | 1467 | of buffer at first key-press (instead they move to top/bottom of buffer) |
550f41cd | 1468 | when `scroll-error-top-bottom' is non-nil. |
dfdb4cad CY |
1469 | |
1470 | *** New option `scroll-error-top-bottom' (see above). | |
1471 | ||
041d709f | 1472 | *** New scrolling commands `scroll-up-line' and `scroll-down-line' |
5a97d2da | 1473 | scroll a line instead of full screen. |
dfdb4cad | 1474 | |
041d709f | 1475 | *** New property `scroll-command' should be set on a command's symbol to |
b2957ea8 | 1476 | define it as a scroll command affected by `scroll-preserve-screen-position'. |
dfdb4cad | 1477 | |
041d709f | 1478 | *** If you customize `scroll-conservatively' to a value greater than 100, |
d0f69533 EZ |
1479 | Emacs will never recenter point in the window when it scrolls due to |
1480 | cursor motion commands or commands that move point (e.f., `M-g M-g'). | |
1481 | Previously, you needed to use `most-positive-fixnum' as the value of | |
1482 | `scroll-conservatively' to achieve the same effect. | |
dfdb4cad | 1483 | |
7d301ae6 | 1484 | *** "Aggressive" scrolling now honors the scroll margins. |
d0f69533 EZ |
1485 | If you customize `scroll-up-aggressively' or |
1486 | `scroll-down-aggressively' and move point off the window, Emacs now | |
1487 | scrolls the window so as to avoid positioning point inside the scroll | |
1488 | margin. | |
1489 | ||
7d301ae6 CY |
1490 | ** Basic SELinux support has been added. |
1491 | This requires Emacs to be linked with libselinux at build time. | |
f1a5d776 | 1492 | |
dfdb4cad CY |
1493 | *** Emacs preserves the SELinux file context when backing up. |
1494 | Also, the function `copy-file' has an extra optional argument for | |
1495 | preserving SELinux context, and the return value of `backup-buffer' | |
1496 | now includes the SELinux context. | |
f0bf7c8e | 1497 | |
dfdb4cad | 1498 | *** New functions `file-selinux-context' and `set-file-selinux-context' |
7d301ae6 | 1499 | get and set the SELinux context of a file. |
44198b6e | 1500 | |
7d301ae6 | 1501 | ** Trash changes |
dfdb4cad | 1502 | |
7d301ae6 CY |
1503 | *** `delete-by-moving-to-trash' now only affects commands that specify |
1504 | trashing. This avoids inadvertently trashing temporary files. | |
dfdb4cad | 1505 | |
7d301ae6 CY |
1506 | *** Calling `delete-file' or `delete-directory' with a prefix argument |
1507 | now forces true deletion, regardless of `delete-by-moving-to-trash'. | |
278f6845 | 1508 | |
041d709f | 1509 | ** File- and directory-local variable changes |
dfdb4cad | 1510 | |
041d709f CY |
1511 | *** You can stop directory local vars from applying to subdirectories. |
1512 | Add an element (subdirs . nil) to the alist portion of any variables | |
1513 | settings to indicate that the section should not apply to | |
1514 | subdirectories. | |
dfdb4cad | 1515 | |
041d709f CY |
1516 | *** Directory local variables can apply to some file-less buffers. |
1517 | Affected modes include dired, vc-dir, and log-edit. For example, | |
1518 | adding "(diff-mode . ((mode . whitespace)))" to .dir-locals.el will | |
1519 | turn on `whitespace-mode' for *vc-diff* buffers. Modes should call | |
1520 | `hack-dir-local-variables-non-file-buffer' to support this. | |
dfdb4cad | 1521 | |
041d709f CY |
1522 | *** Using "mode: MINOR-MODE" to enable a minor mode is deprecated. |
1523 | Instead, use "eval: (minor-mode 1)". | |
c136e5cd | 1524 | |
7b447e9b GM |
1525 | *** The variable `inhibit-first-line-modes-regexps' has been renamed |
1526 | to `inhibit-local-variables-regexps'. As the name suggests, it now | |
dfdb4cad CY |
1527 | applies to ALL file local variables, not just -*- lines. The |
1528 | associated `inhibit-first-line-modes-suffixes' has been renamed in the | |
1529 | corresponding way. | |
5d907d6c | 1530 | |
0a2132ba CY |
1531 | ** Window changes |
1532 | ||
91b65361 CY |
1533 | *** The `quit-window' command now restores the last buffer displayed |
1534 | in the quitted window. | |
1535 | ||
0a2132ba CY |
1536 | *** Resizing an Emacs frame now preserves proportional window sizes, |
1537 | modulo restrictions like window minimum sizes and fixed-size windows. | |
1538 | ||
1539 | *** The behavior of `display-buffer' is now customizable in detail. | |
dfdb4cad | 1540 | |
0a2132ba CY |
1541 | **** New option `display-buffer-base-action' specifies a list of |
1542 | user-determined display "actions" (functions and optional arguments | |
1543 | for choosing the displaying window). | |
1544 | ||
1545 | This takes precedence over the default display action, which is | |
1546 | specified by `display-buffer-fallback-action'. | |
1547 | ||
1548 | **** New option `display-buffer-alist' maps buffer name regexps to | |
1549 | display actions, taking precedence over `display-buffer-base-action'. | |
1550 | ||
a0c2d0ae MR |
1551 | *** New option `window-combination-limit'. |
1552 | The new option `window-combination-limit' allows to return the space | |
1553 | obtained for resizing or creating a window more reliably to the window | |
1554 | from which such space was obtained. | |
0a2132ba | 1555 | |
a0c2d0ae MR |
1556 | *** New option `window-combination-resize'. |
1557 | The new option `window-combination-resize' allows to split a window that | |
1558 | otherwise cannot be split because it's too small by stealing space from | |
1559 | other windows in the same combination. Subsequent resizing or deletion | |
1560 | of the window will resize all windows in the same combination as well. | |
0a2132ba | 1561 | |
91b65361 CY |
1562 | *** New option `frame-auto-hide-function' lets you choose between |
1563 | iconifying or deleting a frame when burying a buffer in a dedicated | |
1564 | frame, or quitting a window showing a buffer in a frame of its own. | |
1565 | ||
0a2132ba | 1566 | *** New commands `maximize-window' and `minimize-window'. |
53964682 | 1567 | These maximize and minimize the size of a window within its frame. |
0a2132ba | 1568 | |
0a2132ba CY |
1569 | *** New commands `switch-to-prev-buffer' and `switch-to-next-buffer'. |
1570 | These functions allow to navigate through the live buffers that have | |
1571 | been shown in a specific window. | |
1572 | ||
7d301ae6 | 1573 | ** Minibuffer changes |
dfdb4cad | 1574 | |
7d301ae6 | 1575 | *** The inactive minibuffer has its own major mode `minibuffer-inactive-mode'. |
104dc9c6 GM |
1576 | This is handy for minibuffer-only frames, and is also used for the feature |
1577 | where mouse-1 pops up *Messages*"', which can now easily be changed. | |
041d709f | 1578 | |
7d301ae6 | 1579 | *** Minibuffers set `truncate-lines' to nil. |
f66eca26 | 1580 | If you want to change the value to something else, you could use |
7d301ae6 CY |
1581 | for example `minibuffer-setup-hook'. |
1582 | ||
7d301ae6 CY |
1583 | ** `auto-mode-case-fold' is now enabled by default. |
1584 | ||
7d301ae6 | 1585 | ** `backup-by-copying-when-mismatch' now defaults to t. |
f66eca26 | 1586 | |
dfdb4cad CY |
1587 | ** New basic faces `error', `warning', `success'. |
1588 | These are used to highlight text indicating failure, caution or | |
1589 | successful operation. | |
1590 | ||
1591 | ** New option `list-colors-sort' defines the color sort order | |
1592 | for `list-colors-display'. | |
1593 | ||
1594 | ** The variable `focus-follows-mouse' now always defaults to nil. | |
1595 | ||
0bfd685e | 1596 | \f |
eb199145 | 1597 | * Editing Changes in Emacs 24.1 |
b350bdf2 | 1598 | |
892777ba | 1599 | ** Search changes |
dfdb4cad CY |
1600 | |
1601 | *** C-y in Isearch is now bound to `isearch-yank-kill', instead of | |
1602 | `isearch-yank-line'. | |
1603 | ||
1604 | *** M-y in Isearch is now bound to `isearch-yank-pop', instead of | |
1605 | `isearch-yank-kill'. | |
1606 | ||
1607 | *** M-s C-e in Isearch is now bound to `isearch-yank-line'. | |
1608 | ||
b2b0776e | 1609 | ** New commands `count-words-region' and `count-words'. |
dfdb4cad | 1610 | |
10607bea CY |
1611 | *** M-= is bound to `count-words-region', not `count-lines-region'. |
1612 | The `count-words-region' command, when called interactively, reports | |
1613 | the number of lines, words, and characters in the region. It is a | |
1614 | superset of the old `count-lines-region', which is now an obsolete | |
1615 | alias for it. | |
ea4f7750 | 1616 | |
ec9da840 | 1617 | ** The command `just-one-space' (M-SPC), if given a negative argument, |
1c708c1a CY |
1618 | also deletes newlines around point. |
1619 | ||
b9229673 | 1620 | ** Deletion changes |
dfdb4cad | 1621 | |
b9229673 | 1622 | *** New option `delete-active-region'. |
ddb54206 | 1623 | If non-nil, [delete] and DEL delete the region if it is active and no |
dfdb4cad | 1624 | prefix argument is given. If set to `kill', those commands kill |
ddb54206 | 1625 | instead. |
dfdb4cad | 1626 | |
59ee0542 | 1627 | *** New command `delete-forward-char', bound to [delete]. |
42d9cffa CY |
1628 | This is meant for interactive use, and obeys `delete-active-region'. |
1629 | The command `delete-char' does not obey `delete-active-region'. | |
dfdb4cad | 1630 | |
b9229673 CY |
1631 | *** `delete-backward-char' is now a Lisp function. |
1632 | Apart from obeying `delete-active-region', its behavior is unchanged. | |
7d301ae6 CY |
1633 | However, the byte compiler now warns if it is called from Lisp; Lisp |
1634 | callers should use delete-char with a negative argument instead. | |
dfdb4cad | 1635 | |
b9229673 CY |
1636 | *** The option `mouse-region-delete-keys' has been deleted. |
1637 | ||
f9d71b42 CY |
1638 | ** Selection changes. |
1639 | ||
7d301ae6 CY |
1640 | The default handling of clipboard and primary selections has been |
1641 | changed to conform with modern X applications. In short, most | |
1642 | commands for killing and yanking text now use the clipboard, while | |
1643 | mouse commands use the primary selection. | |
b1ab31ae CY |
1644 | |
1645 | In the following, we provide a list of these changes, followed by a | |
1646 | list of steps to get the old behavior back if you prefer that. | |
1647 | ||
b1ab31ae CY |
1648 | *** `select-active-regions' now defaults to t. |
1649 | Merely selecting text (e.g. with drag-mouse-1) no longer puts it in | |
963578d3 | 1650 | the kill ring. The selected text is put in the primary selection, if |
b1ab31ae CY |
1651 | the system possesses a separate primary selection facility (e.g. X). |
1652 | ||
1653 | **** `select-active-regions' also accepts a new value, `only'. | |
1654 | This means to only set the primary selection for temporarily active | |
1655 | regions (usually made by mouse-dragging or shift-selection); | |
1656 | "ordinary" active regions, such as those made with C-SPC followed by | |
1657 | point motion, do not alter the primary selection. | |
1658 | ||
963578d3 CY |
1659 | **** `mouse-drag-copy-region' now defaults to nil. |
1660 | ||
b1ab31ae CY |
1661 | *** mouse-2 is now bound to `mouse-yank-primary'. |
1662 | This pastes from the primary selection, ignoring the kill-ring. | |
1663 | Previously, mouse-2 was bound to `mouse-yank-at-click'. | |
dfdb4cad | 1664 | |
b1ab31ae | 1665 | *** `x-select-enable-clipboard' now defaults to t on all platforms. |
dfdb4cad | 1666 | |
b1ab31ae CY |
1667 | *** `x-select-enable-primary' now defaults to nil. |
1668 | Thus, commands that kill text or copy it to the kill-ring (such as | |
1669 | M-w, C-w, and C-k) also use the clipboard---not the primary selection. | |
1670 | ||
1671 | **** The "Copy", "Cut", and "Paste" items in the "Edit" menu are now | |
dfdb4cad | 1672 | exactly equivalent to M-w, C-w, and C-y respectively. |
b1ab31ae CY |
1673 | |
1674 | **** Note that on MS-Windows, `x-select-enable-clipboard' was already | |
1675 | non-nil by default, as Windows does not support the primary selection | |
1676 | between applications. | |
1677 | ||
1678 | *** To return to the previous behavior, do the following: | |
dfdb4cad | 1679 | |
104c2fe9 | 1680 | **** Change `select-active-regions' to nil. |
b1ab31ae CY |
1681 | **** Change `mouse-drag-copy-region' to t. |
1682 | **** Change `x-select-enable-primary' to t (on X only). | |
1683 | **** Change `x-select-enable-clipboard' to nil. | |
1684 | **** Bind `mouse-yank-at-click' to mouse-2. | |
f9d71b42 | 1685 | |
084e6df3 | 1686 | *** Support for X cut buffers has been removed. |
dfdb4cad | 1687 | |
3fd50d5c CY |
1688 | *** X clipboard managers are now supported. |
1689 | To inhibit this, change `x-select-enable-clipboard-manager' to nil. | |
4b80f674 | 1690 | |
dfdb4cad CY |
1691 | ** New command `C-x r N' (`rectangle-number-lines') numbers the lines |
1692 | in the current rectangle. With a prefix argument, this prompts for a | |
1693 | number to count from and for a format string. | |
99f053cf | 1694 | |
7d301ae6 | 1695 | ** `redisplay-dont-pause' now defaults to t. |
6bf7006f EZ |
1696 | This makes Emacs feel more responsive to editing commands that arrive |
1697 | at high rate, e.g. if you lean on some key, because stopping redisplay | |
1698 | in the middle (when this variable is nil) forces more expensive | |
1699 | updates later on, and Emacs appears to be unable to keep up. | |
1700 | ||
e70b5064 CY |
1701 | ** The behavior of <TAB> for active regions in Text mode has changed. |
1702 | In Text and related modes, typing <TAB> (`indent-for-tab-command') | |
1703 | when the region is active causes Emacs to indent all the lines in the | |
1704 | region, aligning them with the line previous to the first line in the | |
1705 | region (or with the left margin if there is no previous line). | |
1706 | ||
dfdb4cad CY |
1707 | ** When `occur' is called with a prefix argument, matching strings are |
1708 | collected into the `*Occur*' buffer without line numbers. If there | |
1709 | are parenthesized subexpressions in the specified regexp, `occur' | |
1710 | reads replacement text that may contain \\& and \\N whose convention | |
1711 | follows `replace-match'. | |
1712 | ||
9bae34bf | 1713 | \f |
eb199145 | 1714 | * Changes in Specialized Modes and Packages in Emacs 24.1 |
efeb796b | 1715 | |
041d709f | 1716 | ** Archive Mode has basic support for browsing and updating 7z archives. |
d76674bb | 1717 | |
b7c3692a | 1718 | ** BibTeX mode |
dfdb4cad | 1719 | |
2de69e00 | 1720 | *** BibTeX mode now supports biblatex. |
7d301ae6 CY |
1721 | Use the variable `bibtex-dialect' to select different BibTeX dialects. |
1722 | `bibtex-entry-field-alist' is now an obsolete alias for | |
1723 | `bibtex-BibTeX-entry-alist'. | |
1724 | ||
dfdb4cad CY |
1725 | *** New command `bibtex-search-entries', bound to C-c C-a. |
1726 | ||
b7c3692a | 1727 | *** New `bibtex-entry-format' option `sort-fields', disabled by default. |
dfdb4cad | 1728 | |
022fe7ce RW |
1729 | *** New variable `bibtex-search-entry-globally'. |
1730 | ||
7d301ae6 | 1731 | ** Browse-url |
dfdb4cad | 1732 | |
7d301ae6 | 1733 | *** New option `browse-url-mailto-function' specifies how to handle "mailto:"s. |
dfdb4cad | 1734 | |
7d301ae6 CY |
1735 | *** The default browser used by the package is now the "xdg-open" program, |
1736 | on platforms that support it. This calls your desktop's preferred browser. | |
1737 | ||
86e100a6 GM |
1738 | ** Calc |
1739 | ||
1740 | *** Support for musical notes. | |
1741 | ||
1742 | *** Support for logarithmic units. | |
1743 | ||
1744 | *** No longer uses the tex prefix for TeX specific unit names when | |
1745 | using TeX or LaTeX mode. | |
1746 | ||
1747 | *** New option to highlight selections using faces. | |
1748 | ||
1749 | *** `calc-histogram' has the option of using a vector to determine the bins. | |
1750 | ||
1751 | *** New "O" option prefix. | |
1752 | ||
1753 | *** Use the "O" prefix to "d r" (`calc-radix') to turn on twos-complement mode. | |
1754 | ||
cf16af42 GM |
1755 | ** Calendar, Diary, and Appt |
1756 | ||
7d301ae6 | 1757 | *** Diary entries can contain non-printing "comments". |
548d0a63 GM |
1758 | See the variable `diary-comment-start'. |
1759 | ||
5006e634 GM |
1760 | *** Appointments can specify their individual warning times. |
1761 | See the variable `appt-warning-time-regexp'. | |
1762 | ||
0a2bb1a9 GM |
1763 | *** The function specified by `appt-disp-window-function' may be passed |
1764 | lists of arguments if multiple appointments are due at similar times. | |
1765 | If you are using a custom function for this, you should update it. | |
1766 | ||
7454f200 GM |
1767 | *** New function `diary-hebrew-birthday'. |
1768 | ||
e565dd37 GM |
1769 | *** Elements of `calendar-day-abbrev-array' and `calendar-month-abbrev-array' |
1770 | may no longer be nil, but must all be strings. | |
1771 | ||
7d301ae6 CY |
1772 | *** The obsolete (since Emacs 22.1) method of enabling the appt |
1773 | package by adding `appt-make-list' to `diary-hook' has been removed. | |
1774 | Use `appt-activate' instead. | |
cf16af42 | 1775 | |
cf16af42 GM |
1776 | *** Some appt variables (obsolete since Emacs 22.1) have been removed: |
1777 | appt-issue-message (use the function appt-activate) | |
1778 | appt-visible/appt-msg-window (use the variable appt-display-format) | |
1779 | ||
cf16af42 GM |
1780 | *** Some diary function aliases (obsolete since Emacs 22.1) have been removed: |
1781 | view-diary-entries, list-diary-entries, show-all-diary-entries | |
1782 | ||
551b046f | 1783 | ** CC Mode |
dfdb4cad | 1784 | |
551b046f | 1785 | *** New feature to "guess" the style in an existing buffer. |
7d301ae6 | 1786 | The main entry point is M-x c-guess. |
041d709f | 1787 | |
551b046f AM |
1788 | *** Java Mode now supports Java 5.0 (Tiger) and 6 (Mustang). |
1789 | ||
dfdb4cad | 1790 | *** `c-beginning-of-defun' and `c-end-of-defun' now respect nested scopes. |
551b046f AM |
1791 | Thus C-M-a will, by default, go to the beginning of the immediate function, |
1792 | not the top level. | |
1793 | ||
dfdb4cad | 1794 | *** "Macros with semicolons" can be registered for correct indentation. |
551b046f AM |
1795 | Where such a macro ends a line (no semicolon) the next statement is no longer |
1796 | parsed as a statement continuation. | |
1797 | ||
dfdb4cad | 1798 | ** Comint and modes derived from it use the standard completion code. |
041d709f CY |
1799 | |
1800 | ** Compilation mode | |
dfdb4cad | 1801 | |
7d301ae6 | 1802 | *** Compilation mode can be used without Font Lock mode. |
041d709f CY |
1803 | `compilation-parse-errors-function' is now obsolete. |
1804 | ||
dfdb4cad | 1805 | *** New variable `compilation-filter-start', which is bound while |
7d301ae6 CY |
1806 | `compilation-filter-hook' runs. It records the start position of the |
1807 | text inserted by `compilation-filter'. | |
041d709f | 1808 | |
47a6a35f GM |
1809 | *** `compilation-error-screen-columns' and `compilation-first-column' |
1810 | are obeyed in the editing buffer. So programming language modes can | |
7d301ae6 CY |
1811 | set them, whereas previously only the value in the *Compilation* |
1812 | buffer was used. | |
1dce7193 | 1813 | |
52834b6b CY |
1814 | ** Customize |
1815 | ||
1816 | *** Customize buffers now contain a search field. | |
1817 | The search is performed using `customize-apropos'. | |
7d301ae6 | 1818 | To turn off the search field, set `custom-search-field' to nil. |
52834b6b | 1819 | |
8d5dd370 | 1820 | *** Options in customize group buffers start out hidden if not customized. |
52834b6b CY |
1821 | Use the arrow to the left of the option name to toggle visibility. |
1822 | ||
1823 | *** custom-buffer-sort-alphabetically now defaults to t. | |
1824 | ||
1825 | *** The color widget now has a "Choose" button, which allows you to | |
7d301ae6 | 1826 | choose a color via `list-colors-display'. |
52834b6b | 1827 | |
041d709f CY |
1828 | ** D-Bus |
1829 | ||
5da3be7f GM |
1830 | *** It is now possible to access buses other than the default system |
1831 | or session bus. | |
041d709f | 1832 | |
7d301ae6 | 1833 | *** The `dbus-register-method' and `dbus-register-property' functions |
5da3be7f | 1834 | optionally do not register names. |
041d709f | 1835 | |
7d301ae6 | 1836 | *** The new function `dbus-register-service' registers a known service |
dfdb4cad | 1837 | name on a D-Bus without also registering a property or a method. |
041d709f | 1838 | |
f5d6548a | 1839 | ** Dired-x |
425a25f1 | 1840 | |
7d301ae6 CY |
1841 | *** C-x C-j (`dired-jump') and C-x 4 C-j (`dired-jump-other-window'), |
1842 | if called with a prefix argument, read a file name from the minibuffer | |
1843 | instead of using the current buffer. | |
f5d6548a | 1844 | |
7d301ae6 | 1845 | *** The "dired local variables" feature of Dired-x is obsolete. |
817b48a7 | 1846 | The standard directory local variables feature replaces it. |
8117868f | 1847 | |
041d709f | 1848 | ** ERC changes |
7492acc9 | 1849 | |
c4077254 GM |
1850 | *** New options `erc-autojoin-timing' and `erc-autojoin-delay', |
1851 | controlling attempts to autojoin a channel. | |
041d709f CY |
1852 | |
1853 | *** New variable `erc-coding-system-precedence': If we use `undecided' | |
1854 | as the server coding system, this variable will then be consulted. | |
1855 | The default is to decode strings that can be decoded as utf-8 as | |
1856 | utf-8, and do the normal `undecided' decoding for the rest. | |
7492acc9 | 1857 | |
041d709f | 1858 | ** Eshell changes |
7492acc9 | 1859 | |
05f77e38 GM |
1860 | *** The default value of `eshell-directory-name' has changed |
1861 | to be an "eshell" directory in `user-emacs-directory'. | |
1862 | The old "~/.eshell/" directory is still used if it exists, though. | |
041d709f CY |
1863 | |
1864 | ** gdb-mi | |
dfdb4cad CY |
1865 | |
1866 | *** The M-x gdb command now uses the GDB Machine Interface protocol. | |
05f77e38 GM |
1867 | It now supports multithread non-stop debugging and simultaneous |
1868 | debugging of several threads. | |
7492acc9 | 1869 | |
18af70d0 CY |
1870 | ** Image mode |
1871 | ||
05f77e38 GM |
1872 | *** RET (`image-toggle-animation') toggles animation, if applicable. |
1873 | Animation plays once, unless the option `image-animate-loop' is non-nil. | |
18af70d0 | 1874 | |
041d709f | 1875 | ** Info |
723ee192 | 1876 | |
7d301ae6 | 1877 | *** New command M-x info-display-manual displays a named Info manual. |
2ebc3b94 GM |
1878 | If that manual is already visited in some Info buffer, it displays |
1879 | that buffer. (This is handy if you have many manuals in many *info* | |
1880 | buffers, and don't remember the name of the buffer visiting the manual | |
1881 | you want to consult.) Otherwise, it loads and displays the manual. | |
691cf4a0 | 1882 | |
24ea72d3 EZ |
1883 | *** `e' is now bound to `end-of-buffer' rather than to `Info-edit'. |
1884 | This is for compatibility with the stand-alone Info reader program, | |
1885 | and also because `Info-edit' is a rarely used command that is disabled | |
1886 | by default. | |
1887 | ||
7d301ae6 | 1888 | ** Mail mode changes (not Message mode) |
dfdb4cad | 1889 | |
7d301ae6 | 1890 | *** New command M-x mail-add-attachment for adding MIME attachments |
7d301ae6 | 1891 | |
dfdb4cad CY |
1892 | *** The command M-x mail-attach-file was renamed to M-x mail-insert-file. |
1893 | (Its name is misleading, since it has nothing to do with MIME | |
1894 | attachments.) The old name is now an obsolete alias to the new name. | |
1895 | ||
f2c3a9eb | 1896 | ** MH-E has been updated to MH-E version 8.3.1. |
041d709f | 1897 | See MH-E-NEWS for details. |
37221432 | 1898 | |
041d709f | 1899 | ** Modula-2 mode provides auto-indentation. |
37221432 | 1900 | |
041d709f | 1901 | ** mpc.el: Can use pseudo tags of the form tag1|tag2 as a union of two tags. |
3c3d4f5b | 1902 | |
5d1ac394 | 1903 | ** nXML mode no longer binds C-RET to `nxml-complete'. |
dfdb4cad CY |
1904 | Completion is now performed via `completion-at-point', bound to C-M-i |
1905 | or M-TAB. If `nxml-bind-meta-tab-to-complete-flag' is non-nil (the | |
1906 | default), this performs tag completion. | |
5d1ac394 | 1907 | |
f2c3a9eb CY |
1908 | ** Org mode has been updated to version 7.8.09. |
1909 | See ORG-NEWS for details. | |
1910 | ||
041d709f | 1911 | ** Prolog mode has been completely revamped, with lots of additional |
7d301ae6 CY |
1912 | functionality such as more intelligent indentation, electricity, |
1913 | support for more variants, including Mercury, and a lot more. | |
041d709f CY |
1914 | |
1915 | ** Rmail | |
1916 | ||
1917 | *** The command `rmail-epa-decrypt' decrypts OpenPGP data | |
1918 | in the Rmail incoming message. | |
1919 | ||
50419064 GM |
1920 | *** The variable `rmail-message-filter' no longer has any effect. |
1921 | This change was made in Emacs 23.1 but was not advertised at the time. | |
1922 | Try using `rmail-show-message-hook' instead. | |
1923 | ||
717a1362 | 1924 | ** Shell mode |
dfdb4cad CY |
1925 | |
1926 | *** M-x shell prompts for the shell path name if the default directory | |
1927 | is a remote file name and neither the environment variable $ESHELL nor | |
1928 | the variable `explicit-shell-file-name' is set. | |
1929 | ||
1930 | *** TAB is now bound to the standard `completion-at-point' command, | |
1931 | which now implements the pcomplete rules for shell command completion. | |
717a1362 | 1932 | |
7d301ae6 CY |
1933 | ** SMTPmail |
1934 | ||
dfdb4cad | 1935 | *** SMTPmail now uses encrypted connections (via STARTTLS) by default |
7d301ae6 CY |
1936 | if the mail server supports them. This uses either built-in GnuTLS |
1937 | support, or the starttls.el library. Customize `smtpmail-stream-type' | |
1938 | to change this. | |
1939 | ||
7d301ae6 CY |
1940 | *** The variable `smtpmail-auth-credentials' has been removed. |
1941 | By default, the information is now stored in the file ~/.authinfo. | |
dfdb4cad CY |
1942 | This was the default value of smtpmail-auth-credentials. If you had |
1943 | customized smtpmail-auth-credentials to a list of user names and | |
1944 | passwords, those settings are not used. During your first connection | |
1945 | to the smtp server, Emacs will prompt for the user name and password, | |
1946 | and offer to save them to ~/.authinfo. Or you can manually copy the | |
1947 | credentials to ~/.authinfo. For example, if you had | |
7d301ae6 CY |
1948 | |
1949 | (setq smtpmail-auth-credentials | |
1950 | '(("mail.example.org" 25 "jim" "s!cret"))) | |
1951 | ||
1952 | then the equivalent line in ~/.authinfo would be | |
1953 | ||
1954 | machine mail.example.org port 25 login jim password s!cret | |
1955 | ||
1956 | See the auth-source manual for more information, e.g. on encrypting | |
1957 | the credentials file. | |
1958 | ||
7d301ae6 | 1959 | *** The variable `smtpmail-starttls-credentials' has been removed. |
dfdb4cad | 1960 | If you had that set, you need to put |
7d301ae6 CY |
1961 | |
1962 | machine smtp.whatever.foo port 25 key "~/.my_smtp_tls.key" cert "~/.my_smtp_tls.cert" | |
1963 | ||
1964 | in your ~/.authinfo file instead. | |
1965 | ||
8ce192e3 LI |
1966 | *** SMTPmail defaults to using the address in the From: header as the |
1967 | SMTP MAIL FROM envelope. To override this, set `mail-envelope-from' | |
1968 | to the address you wish to use instead. | |
1969 | ||
34e8a2da | 1970 | ** SQL mode |
041d709f | 1971 | |
34e8a2da GM |
1972 | *** New options `sql-port', `sql-connection-alist', `sql-send-terminator', |
1973 | and `sql-oracle-scan-on'. | |
041d709f | 1974 | |
dfdb4cad | 1975 | *** New options controlling prompting for login parameters. |
34e8a2da GM |
1976 | Each supported product has a custom variable `sql-*-login-params', |
1977 | which is a list of the parameters to be prompted for before a | |
1978 | connection is established. | |
041d709f CY |
1979 | |
1980 | *** The command `sql-product-interactive' now takes a prefix argument, | |
34e8a2da | 1981 | which causes it to prompt for an SQL product. |
041d709f | 1982 | |
34e8a2da | 1983 | *** Product-specific SQL interactive commands now take prefix arguments. |
041d709f CY |
1984 | These commands (`sql-sqlite', `sql-postgres', `sql-mysql', etc.), |
1985 | given a prefix argument, prompt for a name for the SQL interactive | |
1986 | buffer. This reduces the need for calling `sql-rename-buffer'. | |
1987 | ||
1988 | *** SQL interactive modes suppress command continuation prompts, and | |
1989 | replace tabs with spaces. The first change impacts multiple line SQL | |
1990 | statements entered with C-j between each line, statements yanked into | |
1991 | the buffer and statements sent with `sql-send-*' functions. The | |
34e8a2da GM |
1992 | second prevents the MySQL and Postgres interpreters from listing |
1993 | object name completions when sent text via `sql-send-*' functions. | |
041d709f CY |
1994 | |
1995 | *** New command `sql-connect' starts a predefined SQLi session, | |
1996 | using the login parameters from `sql-connection-alist'. | |
1997 | ||
1998 | *** New "Save Connection" menu item in SQLi buffers. | |
1999 | This gathers the login params specified for the SQLi session, if it | |
2000 | was not started by a connection, and saves them as a new connection. | |
2001 | ||
34e8a2da GM |
2002 | *** New commands for listing database objects and details: |
2003 | sql-list-all and sql-list-table. | |
041d709f CY |
2004 | |
2005 | *** An API for manipulating SQL product definitions has been added. | |
2006 | ||
2007 | ** TeX modes | |
2008 | ||
2009 | *** latex-electric-env-pair-mode keeps \begin..\end matched on the fly. | |
412b9ee5 | 2010 | |
459bba37 | 2011 | ** Tramp |
dfdb4cad | 2012 | |
7d301ae6 | 2013 | *** New inline access method "ksu" (kerberized su). |
dfdb4cad | 2014 | |
459bba37 | 2015 | *** The following access methods are discontinued: "ssh1_old", |
ea843702 | 2016 | "ssh2_old", "scp1_old", "scp2_old", "imap", "imaps" and "fish". |
dfdb4cad | 2017 | |
b011fbfe GM |
2018 | *** The user option `remote-file-name-inhibit-cache' controls whether |
2019 | remote file attributes are cached for better performance. | |
dfdb4cad | 2020 | |
58f74fe4 MA |
2021 | *** The option `ange-ftp-binary-file-name-regexp' has changed its |
2022 | default value to "". | |
dfdb4cad | 2023 | |
7d301ae6 CY |
2024 | *** Handlers for `file-selinux-context' and `set-file-selinux-context' |
2025 | for remote machines which support SELinux. | |
58f74fe4 | 2026 | |
dfdb4cad | 2027 | ** New function `url-queue-retrieve', which behaves like url-retrieve, |
a48ec60c GM |
2028 | but with limits (`url-queue-parallel-processes', `url-queue-timeout') on |
2029 | the degree of parallelism. | |
177549d0 | 2030 | |
0c32ce32 CY |
2031 | ** VC and related modes |
2032 | ||
2033 | *** Support for pulling on distributed version control systems. | |
7d301ae6 CY |
2034 | The command C-x v + (`vc-pull') runs a "pull" operation, if it is |
2035 | supported (currently with Bzr, Git, and Mercurial), to update the | |
2036 | current branch and working tree. A prefix argument means to prompt | |
2037 | the user for specifics, e.g. a pull location. | |
0c32ce32 | 2038 | |
dab3703d | 2039 | *** `vc-update' is now an alias for `vc-pull'. |
0c32ce32 CY |
2040 | |
2041 | *** Support for merging on distributed version control systems. | |
7d301ae6 CY |
2042 | The command C-x v m (`vc-merge') now runs a "merge" operation, if it |
2043 | is supported (currently with Bzr, Git, and Mercurial), to merge | |
2044 | changes from another branch into the current one. It prompts for | |
2045 | specifics, e.g. a merge source. | |
0c32ce32 | 2046 | |
2afef60a | 2047 | *** New option `vc-revert-show-diff' controls whether `vc-revert' |
bbe43420 | 2048 | shows a diff while querying the user. It defaults to t. |
2afef60a | 2049 | |
d4eb88c7 CY |
2050 | *** Log entries in some Log View buffers can be toggled to display a |
2051 | longer description by typing RET (log-view-toggle-entry-display). | |
dab3703d GM |
2052 | This is currently supported for Bzr, Git, and Mercurial (to support |
2053 | another backend, define a `log-view-expanded-log-entry-function'). | |
7d301ae6 | 2054 | In the Log View buffers made by C-x v L (`vc-print-root-log'), you can |
d4eb88c7 CY |
2055 | use this to display the full log entry for the revision at point. |
2056 | ||
1c6c854e CS |
2057 | *** New command `vc-ediff' allows visual comparison of two revisions |
2058 | of a file similar to `vc-diff', but using ediff backend. | |
2059 | ||
86c60681 CY |
2060 | *** The option `vc-initial-comment' was removed in Emacs 23.2, but |
2061 | this was not advertised at the time. | |
2062 | ||
86c60681 CY |
2063 | *** `vc-toggle-read-only' is an obsolete alias for `toggle-read-only'. |
2064 | Since Emacs 23, it has done the same thing as `toggle-read-only', but | |
80c6d77f GM |
2065 | this was not advertised at the time. |
2066 | ||
041d709f CY |
2067 | ** Obsolete modes |
2068 | ||
23d70505 GM |
2069 | *** abbrevlist.el |
2070 | ||
f8ca9162 | 2071 | *** erc-hecomplete.el (use erc-pcomplete.el instead) |
23d70505 GM |
2072 | |
2073 | *** partial-completion-mode (complete.el) is obsolete. | |
041d709f CY |
2074 | You can get a comparable behavior with: |
2075 | (setq completion-styles '(partial-completion initials)) | |
2076 | (setq completion-pcm-complete-word-inserts-delimiters t) | |
2077 | ||
23d70505 GM |
2078 | *** pc-mode.el is obsolete (CUA mode is much more comprehensive). |
2079 | ||
2c719188 | 2080 | *** pgg is obsolete (use EasyPG instead). |
041d709f CY |
2081 | |
2082 | *** sregex.el is obsolete, since rx.el is a strict superset. | |
2083 | ||
23d70505 GM |
2084 | *** s-region.el and pc-select.el are obsolete. |
2085 | They are superseded by shift-select-mode, enabled by default since 23.1. | |
2086 | ||
2c719188 | 2087 | *** vc-mcvs.el is obsolete (for lack of a maintainer). |
ca5eed61 | 2088 | |
0fe719e6 GM |
2089 | ** Miscellaneous |
2090 | ||
05f77e38 | 2091 | *** The Landmark game is now invoked with `landmark', not `lm'. |
c6ad2a4e | 2092 | Its functions and variables have been similarly renamed. |
05f77e38 | 2093 | |
dfdb4cad | 2094 | *** In `ido-file-completion-map', C-v is no longer bound to `ido-toggle-vc'. |
05f77e38 GM |
2095 | (This interfered with cua-mode.) |
2096 | ||
9f678528 GM |
2097 | *** f90.el has some support for Fortran 2008 syntax. |
2098 | ||
0fe719e6 GM |
2099 | *** `copyright-fix-years' can optionally convert consecutive years to ranges. |
2100 | ||
5b3e6db8 GM |
2101 | *** New command `nato-region' converts text to NATO phonetic alphabet. |
2102 | ||
eb199145 GM |
2103 | \f |
2104 | * New Modes and Packages in Emacs 24.1 | |
d445b3f8 | 2105 | |
60e56523 | 2106 | ** Occur Edit mode applies edits made in *Occur* buffers to the |
8c0f49f0 | 2107 | original buffers. It is bound to "e" in Occur mode. |
60e56523 | 2108 | |
a075a2c5 GM |
2109 | ** New global minor mode electric-pair-mode. |
2110 | When enabled, typing an open parenthesis automatically inserts the | |
2111 | matching closing one. | |
2112 | ||
2113 | ** New global minor mode electric-indent-mode. | |
2114 | When enabled, typing certain characters triggers reindentation. | |
cd3308f3 GM |
2115 | Major modes wishing to use this can set electric-indent-chars or |
2116 | electric-indent-functions. | |
a075a2c5 GM |
2117 | |
2118 | ** New global minor mode electric-layout-mode. | |
2119 | When enabled, typing certain characters automatically inserts newlines. | |
cd3308f3 | 2120 | Major modes wishing to use this can set electric-layout-rules. |
3b843809 | 2121 | |
a83ec3c9 CY |
2122 | ** tabulated-list.el provides a generic major mode for tabulated data, |
2123 | from which other modes can be derived. | |
2124 | ||
d02c9bcd SM |
2125 | ** pcase.el provides the ML-style pattern matching macro `pcase'. |
2126 | ||
7725ebb7 MA |
2127 | ** secrets.el is an implementation of the Secret Service API, an |
2128 | interface to password managers like GNOME Keyring or KDE Wallet. The | |
065f2743 MA |
2129 | Secret Service API requires D-Bus for communication. The command |
2130 | `secrets-show-secrets' offers a buffer with a visualization of the | |
2131 | secrets. | |
7725ebb7 | 2132 | |
f9e78150 MA |
2133 | ** notifications.el provides an implementation of the Desktop |
2134 | Notifications API. It requires D-Bus for communication. | |
2135 | ||
12fe5bcc MA |
2136 | ** soap-client.el supports access to SOAP web services from Emacs. |
2137 | soap-inspect.el is an interactive inspector for SOAP WSDL structures. | |
2138 | ||
ff1796f3 | 2139 | ** New generic mode, xmodmap-generic-mode, for xmodmap files. |
ad7d6ecb | 2140 | |
53bbe3ad | 2141 | ** New emacs-lock.el package. |
7d301ae6 CY |
2142 | The previous version has been moved to obsolete/old-emacs-lock.el. |
2143 | Now, there is a proper minor mode `emacs-lock-mode'. Protection | |
2144 | against exiting Emacs and killing the buffer can be set separately. | |
2145 | The mechanism for automatically turning off protection for buffers | |
2146 | with dead inferior processes has been generalized. | |
53bbe3ad | 2147 | |
eb199145 GM |
2148 | \f |
2149 | * Incompatible Lisp Changes in Emacs 24.1 | |
6dfcbe31 | 2150 | |
7d301ae6 CY |
2151 | ** Passing a nil argument to a minor mode function call now ENABLES |
2152 | the minor mode unconditionally. This is so that you can write e.g. | |
2153 | ||
dfdb4cad | 2154 | (add-hook 'text-mode-hook 'foo-mode) |
7d301ae6 | 2155 | |
dfdb4cad CY |
2156 | to enable foo-mode in Text mode buffers, removing the need for |
2157 | `turn-on-foo-mode' style functions. This affects all mode commands | |
2158 | defined by `define-minor-mode'. If called interactively, the mode | |
2159 | command still toggles the minor mode. | |
7d301ae6 | 2160 | |
d268b4fe CY |
2161 | ** The return value of `backup-buffer' has changed. |
2162 | It is now a list of three elements, where the second element is a list | |
2163 | describing the original file's SELinux context. If Emacs or the | |
f003f294 | 2164 | system lacks SELinux support, the context list is (nil nil nil nil). |
7d301ae6 | 2165 | See "Basic SELinux support" above, under "Changes in Emacs 24.1". |
d268b4fe | 2166 | |
dfdb4cad CY |
2167 | ** `char-direction-table' and the `char-direction' function were deleted. |
2168 | They were buggy and inferior to the new support of bidirectional | |
2169 | editing introduced in Emacs 24. If you need the bidirectional | |
2170 | properties of a character, use `get-char-code-property' with the last | |
2171 | argument `bidi-class'. | |
fa6996bc | 2172 | |
470d996d TV |
2173 | ** `copy-directory' now copies the source directory as a subdirectory |
2174 | of the target directory, if the latter is an existing directory. The | |
2175 | new optional arg COPY-CONTENTS, if non-nil, makes the function copy | |
2176 | the contents directly into a pre-existing target directory. | |
2177 | ||
9173a8fb CY |
2178 | ** For mouse click input events in the text area, the Y pixel |
2179 | coordinate in the POSITION list now counts from the top of the text | |
2180 | area, excluding any header line. Previously, it counted from the top | |
2181 | of the header line. | |
2182 | ||
7d301ae6 CY |
2183 | ** Support for "old-style" backquotes, obsolete for 10+ years, has |
2184 | been further reduced. Now a backquote not followed by a space is | |
2185 | always treated as a "new-style" backquote. Please remove all | |
2186 | "old-style" backquotes from your code. If your code uses backquotes | |
2187 | as documented in the Elisp manual, and compiles without warning, then | |
2188 | you have nothing to do in this regard. Code not following the | |
2189 | appropriate conventions may fail to compile. | |
50ab02c5 CY |
2190 | |
2191 | The most common cause of trouble seems to be an old-style backquote | |
2192 | followed by a newline. Another cause of trouble is vector notation | |
2193 | for key sequence notation: instead of [(control ,)] and [(control ')], | |
2194 | you should write [(control ?,)] and [(control ?')], which will work in | |
7d301ae6 | 2195 | older Emacsen too. |
288cf4e9 | 2196 | |
520f2425 GM |
2197 | ** The macro `eval-at-startup' was removed in Emacs 23.2, but this |
2198 | was not advertised at the time. The function `custom-initialize-delay' | |
2199 | replaced all known uses. | |
2200 | ||
7d301ae6 CY |
2201 | ** `view-buffer' now treats special mode-class in the same way that |
2202 | `view-file' has since Emacs 22 (i.e. it won't enable View mode if the | |
2203 | major mode is special). | |
fd5c9dfa | 2204 | |
7d301ae6 | 2205 | ** Menu and tool bar changes |
6431f2e6 | 2206 | |
7d301ae6 | 2207 | *** During startup, Emacs no longer adds entries for `menu-bar-lines' |
0a19a6f8 JB |
2208 | and `tool-bar-lines' to `default-frame-alist' and `initial-frame-alist'. |
2209 | With these alist entries omitted, `make-frame' checks the value of the | |
2210 | variable `menu-bar-mode'/`tool-bar-mode' to determine whether to create | |
2211 | a menu-bar or tool-bar, respectively. If the alist entries are added, | |
2212 | they override the value of `menu-bar-mode'/`tool-bar-mode'. | |
6431f2e6 | 2213 | |
7d301ae6 CY |
2214 | *** The menu bar bindings's caches are not used any more. |
2215 | Use (where-is-internal <def> nil t) instead. | |
2216 | ||
fe0aa820 | 2217 | ** Regions created by mouse dragging are now normal active regions, |
dfdb4cad | 2218 | similar to those created by shift-selection (see Selection changes |
7d301ae6 CY |
2219 | above). In previous Emacs versions, these regions were delineated by |
2220 | `mouse-drag-overlay'; that variable has been removed. | |
d6d8ee7a | 2221 | |
7d301ae6 CY |
2222 | ** The fourth argument of `filter-buffer-substring' has been removed. |
2223 | If you want to remove text properties from the final result, simply | |
2224 | pass the result through substring-no-properties. | |
34c99998 | 2225 | |
4583e796 GM |
2226 | ** cl.el no longer provides `cl-19'. |
2227 | ||
7d301ae6 CY |
2228 | ** The following obsolete functions and aliases have been removed |
2229 | (the appropriate new function is given in parentheses; "not needed" | |
2230 | means you can just remove all calls to the function in question): | |
2231 | ||
2232 | *** `comint-kill-output' (`comint-delete-output') | |
2233 | *** `decompose-composite-char' (`char-to-string') | |
2234 | *** `outline-visible' (`outline-invisible-p') | |
2235 | *** `internal-find-face' (`facep') | |
2236 | *** `internal-get-face' (`facep and check-face') | |
2237 | *** `frame-update-faces' (not needed) | |
2238 | *** `frame-update-face-colors' (`frame-set-background-mode') | |
2239 | *** `x-frob-font-weight' and `x-frob-font-slant' (`make-face-*' functions) | |
2c719188 | 2240 | *** `x-make-font-bold and x-make-font-demibold (`make-face-bold') |
7d301ae6 CY |
2241 | *** `x-make-font-italic' and `x-make-font-oblique' (`make-face-italic') |
2242 | *** `x-make-font-bold-italic' (`make-face-bold-italic') | |
2243 | *** `x-make-font-unbold' (`make-face-unbold') | |
2244 | *** `x-make-font-unitalic' (`make-face-unitalic') | |
2245 | *** `mldrag-drag-mode-line' (`mouse-drag-mode-line') | |
2246 | *** `mldrag-drag-vertical-line' (`mouse-drag-vertical-line') | |
2247 | *** `iswitchb-default-keybindings' (`iswitchb-mode') | |
2248 | *** `char-bytes' (== 1) | |
2249 | *** `isearch-return-char' (`isearch-printing-char') | |
2250 | *** `make-local-hook' (not needed) | |
2251 | *** `set-screen-height' (`set-frame-height') | |
2252 | *** `set-screen-width' (`set-frame-width') | |
2253 | ||
7d301ae6 CY |
2254 | ** The following obsolete variables and varaliases have been removed |
2255 | (the appropriate new variable is given in parentheses): | |
2256 | ||
2257 | *** `checkdoc-minor-keymap' (`checkdoc-minor-mode-map') | |
2258 | *** `vc-header-alist' (`vc-BACKEND-header') | |
2259 | *** `directory-sep-char' (== ?/) | |
2260 | *** `font-lock-defaults-alist' (`font-lock-defaults') | |
2261 | *** `e' (`float-e'). | |
3226d6ca | 2262 | |
041d709f | 2263 | ** The following obsolete files were removed: |
7b0e3048 GM |
2264 | sc.el, x-menu.el, rnews.el, rnewspost.el |
2265 | ||
7d301ae6 CY |
2266 | ** The format of the finder-inf.el file has changed, since the Finder |
2267 | mechanism is now based on the package system. The variable | |
2268 | `finder-package-info' is replaced by `package--builtins' and | |
2269 | `finder-keywords-hash'. | |
33658d4e | 2270 | |
c2c79260 DE |
2271 | ** When generating autoloads, `update-directory-autoloads' no longer |
2272 | assumes every inspected file is in your `load-path'. It instead | |
2273 | generates relative names according to the current `load-path'. | |
2274 | ||
eb199145 | 2275 | \f |
93e0bed6 | 2276 | * Lisp Changes in Emacs 24.1 |
9097e8af | 2277 | |
041d709f | 2278 | ** Code can now use lexical scoping by default instead of dynamic scoping. |
dfdb4cad | 2279 | The `lexical-binding' variable enables lexical scoping for local |
48da7392 | 2280 | variables. It is typically set via a file-local variable in the first |
dfdb4cad CY |
2281 | line of the file, in which case it applies to all the code in that |
2282 | file. | |
2283 | ||
041d709f CY |
2284 | *** `eval' takes a new optional argument `lexical' to choose the new lexical |
2285 | binding instead of the old dynamic binding mode. | |
dfdb4cad | 2286 | |
041d709f CY |
2287 | *** Lexically scoped interpreted functions are represented with a new form |
2288 | of function value which looks like (closure ENV ARGS &rest BODY). | |
2289 | ||
2290 | *** New macro `letrec' to define recursive local functions. | |
dfdb4cad CY |
2291 | |
2292 | *** `defvar' and `defconst' now mark the variable as special (dynamic). | |
2293 | So do `defcustom' and other forms that call `defvar' as a subroutine. | |
2294 | ||
041d709f CY |
2295 | *** New function `special-variable-p' to check whether a variable is |
2296 | declared as dynamically bound. | |
2297 | ||
88ed9e87 SM |
2298 | *** The form ((lambda ...) ...) is deprecated. |
2299 | ||
041d709f CY |
2300 | ** An Emacs Lisp testing tool is now included. |
2301 | Emacs Lisp developers can use this tool to write automated tests for | |
2302 | their code. See the ERT info manual for details. | |
2303 | ||
2304 | ** Changes for bidirectional display and editing | |
f1816485 | 2305 | |
041d709f | 2306 | *** New function `current-bidi-paragraph-direction'. |
7d301ae6 | 2307 | This returns the base direction of the paragraph at point. |
041d709f | 2308 | |
041d709f | 2309 | *** New function `bidi-string-mark-left-to-right'. |
dfdb4cad CY |
2310 | Given a string containing characters from right-to-left scripts, this |
2311 | function returns another string which can be safely inserted into a | |
2312 | buffer, such that any following text will be always displayed to the | |
7d301ae6 CY |
2313 | right of that string. (This works by appending an invisible Unicode |
2314 | "LEFT-TO-RIGHT MARK" character if the argument string might need it.) | |
041d709f | 2315 | |
7d301ae6 | 2316 | This is useful when the buffer has overall left-to-right paragraph |
dfdb4cad CY |
2317 | direction and you need to insert a string whose contents are not known |
2318 | in advance, without disrupting the layout of the line. | |
041d709f | 2319 | |
bee0fcef | 2320 | ** Window changes |
dfdb4cad | 2321 | |
c4682d18 MR |
2322 | *** Window tree functions are accessible in Elisp. |
2323 | Functions are provided to return the parent, siblings or child windows | |
2324 | of any window including internal windows (windows not associated with a | |
2325 | buffer) in the window tree. | |
dfdb4cad | 2326 | |
24300f5f CY |
2327 | **** New function `window-valid-p' gives non-nil for live and internal |
2328 | windows. | |
dfdb4cad | 2329 | |
24300f5f | 2330 | **** Window manipulation can deal with internal windows. |
c4682d18 MR |
2331 | Many window handling functions like `split-window', `delete-window', or |
2332 | `delete-other-windows' as well as the window resizing functions can now | |
2333 | act on any window including internal ones. | |
dfdb4cad | 2334 | |
c4682d18 MR |
2335 | *** window-total-height/-width vs window-body-height/-width. |
2336 | The function `window-height' has been renamed to `window-total-height' | |
2337 | and `window-width' has been renamed to `window-body-width'. The old | |
2338 | names are provided as aliases. Two new functions `window-total-width' | |
2339 | and `window-body-height' are provided. | |
dfdb4cad | 2340 | |
c4682d18 MR |
2341 | *** Window parameters specific to window handling functions. |
2342 | For each window you can specify a parameter to override the default | |
2343 | behavior of a number of functions like `split-window', `delete-window' | |
ed6235ea MR |
2344 | and `delete-other-windows'. The variable `ignore-window-parameters' |
2345 | allows to ignore processing such parameters. | |
dfdb4cad | 2346 | |
c4682d18 | 2347 | *** New semantics of third argument of `split-window'. |
c4682d18 MR |
2348 | The third argument of `split-window' has been renamed to SIDE and can be |
2349 | set to any of the values 'below, 'right, 'above, or 'left to make the | |
2350 | new window appear on the corresponding side of the window that shall be | |
2351 | split. Any other value of SIDE will cause `split-window' to split the | |
2352 | window into two side-by-side windows as before. | |
dfdb4cad | 2353 | |
c4682d18 | 2354 | *** Window resizing functions. |
487ffd7a | 2355 | A new standard function for resizing windows called `window-resize' has |
c4682d18 MR |
2356 | been introduced. This and all other functions for resizing windows no |
2357 | longer delete any windows when they become too small. | |
dfdb4cad | 2358 | |
b3c0dbfd MR |
2359 | *** Deleting the selected window now selects the most recently selected |
2360 | live window on that frame instead. | |
dfdb4cad | 2361 | |
c4682d18 MR |
2362 | *** `adjust-window-trailing-edge' adjustments. |
2363 | `adjust-window-trailing-edge' can now deal with fixed-size windows and | |
2364 | is able to resize other windows if a window adjacent to the trailing | |
2365 | edge cannot be shrunk any more. This makes its behavior more similar to | |
2366 | that of Emacs 21 without compromising, however, its inability to delete | |
2367 | windows which was introduced in Emacs 22. | |
dfdb4cad | 2368 | |
c4682d18 MR |
2369 | *** Window-local buffer lists. |
2370 | Windows now have local buffer lists. This means that removing a buffer | |
2371 | from display in a window will preferably show the buffer previously | |
2372 | shown in that window with its previous window-start and window-point | |
2373 | positions. This also means that the same buffer may be automatically | |
2374 | shown twice even if it already appears in another window. | |
dfdb4cad | 2375 | |
bee0fcef CY |
2376 | *** `switch-to-buffer' has a new optional argument FORCE-SAME-WINDOW, |
2377 | which if non-nil requires the buffer to be displayed in the currently | |
2378 | selected window, signaling an error otherwise. If nil, another window | |
2379 | can be used, e.g. if the selected one is strongly dedicated. | |
dfdb4cad | 2380 | |
0a2132ba | 2381 | *** `split-window-vertically' and `split-window-horizontally' renamed |
2d197ffb CY |
2382 | to `split-window-below' and `split-window-right' respectively. |
2383 | The old names are kept as aliases. | |
dfdb4cad | 2384 | |
0a2132ba CY |
2385 | *** Display actions |
2386 | ||
2387 | **** The second arg to `display-buffer' and `pop-to-buffer' is now | |
2388 | named ACTION, and takes a display action of the same form as | |
2389 | `display-buffer-base-action' (see Changes, above). A non-nil, | |
2390 | non-list value is treated specially, as the old meaning. | |
2391 | ||
2392 | **** New variable `display-buffer-overriding-action'. | |
2393 | ||
2394 | **** The procedure of `display-buffer' etc. to choose a window is | |
2395 | determined by combining `display-buffer-overriding-action', | |
2396 | `display-buffer-alist', the ACTION arg, `display-buffer-base-action', | |
2397 | and `display-buffer-fallback-action'. The second and fourth of these | |
2398 | are user-customizable variables. | |
2399 | ||
2400 | See the docstring of `display-buffer' for details. | |
bee0fcef | 2401 | |
20d2304d CY |
2402 | *** New functions `window-state-get' and `window-state-put'. |
2403 | These functions allow to save and restore the state of an arbitrary | |
2404 | frame or window as an Elisp object. | |
2405 | ||
a2a25d24 | 2406 | ** Completion |
041d709f | 2407 | |
7d301ae6 CY |
2408 | *** New variable `completion-extra-properties' used to specify extra |
2409 | properties of the current completion: | |
a2a25d24 SM |
2410 | - :annotate-function, same as the old completion-annotate-function. |
2411 | - :exit-function, function to call after completion took place. | |
2412 | ||
7d301ae6 CY |
2413 | *** Functions on `completion-at-point-functions' can return any of the |
2414 | properties valid for `completion-extra-properties'. | |
a2a25d24 | 2415 | |
7d301ae6 | 2416 | *** `completion-annotate-function' is obsolete. |
a2a25d24 | 2417 | |
620c53a6 SM |
2418 | *** New `metadata' method for completion tables. The metadata thus returned |
2419 | can specify various details of the data returned by `all-completions': | |
2420 | - `category' is the kind of objects returned (e.g., `buffer', `file', ...), | |
2421 | used to select a style in completion-category-overrides. | |
2422 | - `annotation-function' to add annotations in *Completions*. | |
2423 | - `display-sort-function' to specify how to sort entries in *Completions*. | |
2424 | - `cycle-sort-function' to specify how to sort entries when cycling. | |
2425 | ||
7d301ae6 CY |
2426 | *** `minibuffer-local-filename-must-match-map' is not used any more. |
2427 | Instead, the bindings in `minibuffer-local-filename-completion-map' | |
2428 | are combined with `minibuffer-local-must-match-map'. | |
de09aa52 CY |
2429 | |
2430 | *** New variable `completing-read-function' allows overriding the | |
2431 | behavior of `completing-read'. | |
2432 | ||
f042970d | 2433 | ** `glyphless-char-display' can now distinguish between graphical and |
16a43933 CY |
2434 | text terminal display, via a char-table entry that is a cons cell. |
2435 | ||
7d301ae6 | 2436 | ** `pre-command-hook'/`post-command-hook' are not reset to nil on error. |
f6d62986 SM |
2437 | Instead, the offending function is removed. |
2438 | ||
b1f6fa26 CY |
2439 | ** New hook types |
2440 | ||
2441 | *** New function `run-hook-wrapped' for running an abnormal hook by | |
2442 | passing the hook functions as arguments to a "wrapping" function. | |
e7bc51d0 | 2443 | Like `run-hook-with-args-until-success', it stops at the first |
5385447f | 2444 | non-nil return value. |
e7bc51d0 | 2445 | |
b1f6fa26 CY |
2446 | *** New macro `with-wrapper-hook' for running an abnormal hook as a |
2447 | set of "wrapping" filters, similar to around advice. | |
54521c99 GM |
2448 | (A version of this macro was actually added in Emacs 23.2 but was not |
2449 | advertised at the time.) | |
f6d62986 | 2450 | |
0b19b281 | 2451 | ** Debugger changes |
dfdb4cad | 2452 | |
0b19b281 | 2453 | *** New macro `condition-case-unless-debug' (this was actually added in |
1be3ca5a | 2454 | Emacs 23.1 as condition-case-no-debug, but not advertised) |
dfdb4cad | 2455 | |
0b19b281 | 2456 | *** The macro `with-demoted-errors' was added in Emacs 23.1, but not advertised. |
dfdb4cad | 2457 | |
0b19b281 | 2458 | *** Variable `stack-trace-on-error' removed. |
dfdb4cad | 2459 | |
0b19b281 CY |
2460 | *** The debugger can now "continue" from an error, which means it will |
2461 | jump to the error handler as if the debugger had not been invoked | |
2462 | instead of jumping all the way to the top-level. | |
dfdb4cad | 2463 | |
0b19b281 CY |
2464 | *** Set `debug-on-event' to enter the debugger on events like SIGUSR1. |
2465 | This can be useful when `inhibit-quit' is set. | |
d6b1d521 | 2466 | |
953cebf5 | 2467 | ** The new function `server-eval-at' allows evaluation of Lisp forms on |
37576acd | 2468 | named Emacs server instances. |
7deebf1b | 2469 | |
1b9f60cc GM |
2470 | ** `call-process' and `call-process-region' allow a `(:file "file")' spec |
2471 | to redirect STDOUT to a file. | |
7deebf1b | 2472 | |
7d301ae6 CY |
2473 | ** The function `format-time-string' now supports the %N directive, |
2474 | for higher-resolution time stamps. | |
da97a9e6 | 2475 | |
0b19b281 | 2476 | ** New input reading functions |
dfdb4cad | 2477 | |
0b19b281 CY |
2478 | *** New function `read-char-choice' reads a restricted set of |
2479 | characters, discarding any inputs not inside the set. | |
dfdb4cad | 2480 | |
0b19b281 CY |
2481 | *** The command `read-color' now requires a match for a color name |
2482 | or RGB triplet, instead of signaling an error if the user provides | |
2483 | invalid input. | |
dfdb4cad | 2484 | |
0b19b281 | 2485 | **** `facemenu-read-color' is now an alias for `read-color'. |
3ef01959 | 2486 | |
2e288d54 JB |
2487 | ** `image-library-alist' is renamed to `dynamic-library-alist'. |
2488 | The variable is now used to load all kind of supported dynamic libraries, | |
2489 | not just image libraries. The previous name is still available as an | |
2490 | obsolete alias. | |
2491 | ||
0b19b281 | 2492 | ** Syntax parsing changes |
dfdb4cad | 2493 | |
0b19b281 | 2494 | *** New variable `syntax-propertize-function'. |
04e2ce72 | 2495 | This replaces `font-lock-syntactic-keywords' which is now obsolete. |
cf38dd42 SM |
2496 | This allows syntax-table properties to be set independently from font-lock: |
2497 | just call syntax-propertize to make sure the text is propertized. | |
2498 | Together with this new variable come a new hook | |
2499 | syntax-propertize-extend-region-functions, as well as two helper functions: | |
2500 | syntax-propertize-via-font-lock to reuse old font-lock-syntactic-keywords | |
2501 | as-is; and syntax-propertize-rules which provides a new way to specify | |
2502 | syntactic rules. | |
dfdb4cad | 2503 | |
0b19b281 | 2504 | *** Syntax tables support a new "comment style c" additionally to style b. |
a2e5caf7 | 2505 | |
7d301ae6 | 2506 | ** New hook `post-self-insert-hook', run after `self-insert-command'. |
041d709f | 2507 | |
4e2db1fe | 2508 | ** frame-local variables cannot be let-bound any more. |
041d709f | 2509 | |
15de15c6 | 2510 | ** Major and minor mode changes |
dfdb4cad | 2511 | |
0b19b281 CY |
2512 | *** `set-auto-mode' now respects mode: local variables at the end of files, |
2513 | as well as those in the -*- line. | |
dfdb4cad | 2514 | |
15de15c6 CY |
2515 | *** `prog-mode' is a new major mode from which programming modes |
2516 | should be derived. | |
dfdb4cad | 2517 | |
15de15c6 CY |
2518 | **** `prog-mode-hook' can be used to enable features for programming |
2519 | modes, e.g. (add-hook 'prog-mode-hook 'flyspell-prog-mode) to enable | |
2520 | on-the-fly spell checking for comments and strings. | |
dfdb4cad | 2521 | |
15de15c6 CY |
2522 | *** New hook `change-major-mode-after-body-hook', run by |
2523 | `run-mode-hooks' just before any other mode hooks. | |
dfdb4cad | 2524 | |
7a9a2fc6 GM |
2525 | *** Enabled globalized minor modes can be disabled in specific major modes. |
2526 | If the global mode is global-FOO-mode, then run (FOO-mode -1) in the | |
2527 | major mode's hook, where FOO-mode toggles the mode on a per-buffer basis. | |
dfdb4cad | 2528 | |
feb8a83a | 2529 | *** `define-minor-mode' accepts new keywords :variable, :after-hook. |
f44379e7 | 2530 | |
7d301ae6 CY |
2531 | ** File-handling changes |
2532 | ||
7d301ae6 | 2533 | *** `delete-file' and `delete-directory' now accept optional arg TRASH. |
f1a5d776 CY |
2534 | Trashing is performed if TRASH and `delete-by-moving-to-trash' are |
2535 | both non-nil. Interactively, TRASH defaults to t, unless a prefix | |
2536 | argument is supplied (see Trash changes, above). | |
53967e09 | 2537 | |
7d301ae6 | 2538 | *** New file predicates: `file-equal-p', `file-in-directory-p'. |
ec70a47d | 2539 | |
4039c786 CY |
2540 | ** Tool-bars can display separators. |
2541 | Tool-bar separators are handled like menu separators in menu-bar maps, | |
94975270 | 2542 | i.e. via menu entries of the form `(menu-item "--")'. |
9317e499 | 2543 | |
00fe2df1 JL |
2544 | ** Image API |
2545 | ||
18af70d0 CY |
2546 | *** Animated images support (currently animated gifs only). |
2547 | ||
2548 | **** `image-animated-p' returns non-nil if an image can be animated. | |
2549 | ||
2550 | **** `image-animate' animates a supplied image spec. | |
2551 | ||
2552 | **** `image-animate-timer' returns the timer object for an image that | |
2553 | is being animated. | |
00fe2df1 | 2554 | |
7cb76fe0 GM |
2555 | *** `image-extension-data' has been renamed to `image-metadata'. |
2556 | The old name is an obsolete alias to the new one. | |
1546c559 | 2557 | |
b4ac6e8c GM |
2558 | *** Image mode can view any image type that ImageMagick supports. |
2559 | This requires Emacs to be built with ImageMagick support. | |
7d301ae6 CY |
2560 | |
2561 | **** New function `imagemagick-types', defined if ImageMagick support | |
2562 | is enabled, returns a list of image file extensions that your | |
2563 | ImageMagick installation supports. | |
2564 | ||
2565 | **** New function `imagemagick-register-types' enables ImageMagick | |
2566 | image types in Image mode and in `create-image' and other helper | |
2567 | functions. | |
2568 | ||
2569 | **** New option `imagemagick-types-inhibit' excludes certain | |
2570 | ImageMagick image types from `imagemagick-register-types'. | |
2571 | ||
7d301ae6 CY |
2572 | **** With ImageMagick support, there are extra Image mode commands to |
2573 | resize and rotate images: `image-transform-fit-to-height', | |
2574 | `image-transform-fit-to-width', `image-transform-set-rotation', and | |
2575 | `image-transform-set-scale'. | |
041d709f | 2576 | |
7d301ae6 CY |
2577 | ** `compose-mail' now accepts an optional 8th arg, RETURN-ACTION, and |
2578 | passes it to the mail user agent function. This argument specifies an | |
2579 | action for returning to the caller after finishing with the mail. For | |
2580 | example, this is used by Rmail to optionally delete a mail window. | |
b4ac6e8c | 2581 | |
71c17aec | 2582 | ** XML and HTML parsing |
483ab230 CY |
2583 | If Emacs is compiled with libxml2 support, there are two new |
2584 | functions: `libxml-parse-html-region' (which parses "real world" HTML) | |
2585 | and `libxml-parse-xml-region' (which parses XML). Both return an | |
2586 | Emacs Lisp parse tree. | |
4b9832a6 | 2587 | |
7d301ae6 | 2588 | ** Networking and encryption changes |
e2574f2c | 2589 | |
7d301ae6 CY |
2590 | *** `open-network-stream' can now be used to open an encrypted stream. |
2591 | It now accepts an optional `:type' parameter for initiating a TLS | |
2592 | connection, directly or via STARTTLS. To do STARTTLS, additional | |
2593 | parameters (`:end-of-command', `:success', `:capabilities-command') | |
2594 | must also be supplied. | |
2595 | ||
2596 | *** New library gnutls.el. | |
dfdb4cad CY |
2597 | The new function `gnutls-available-p' returns non-nil if Emacs is |
2598 | built with GnuTLS support. The main entry points are | |
2599 | `open-gnutls-stream' and `gnutls-negotiate'. It's easiest to use | |
2600 | these functions through `open-network-stream', because that can | |
7d301ae6 CY |
2601 | upgrade connections through STARTTLS opportunistically or use plain |
2602 | SSL, depending on your needs. For debugging, set `gnutls-log-level' | |
2603 | greater than 0. | |
2604 | ||
7d301ae6 CY |
2605 | *** New primitive `secure-hash' that supports many secure hash algorithms: |
2606 | md5, sha1, sha2, sha224, sha256, sha384, and sha512. The lisp library | |
2607 | sha1.el has been removed. The `sha1' feature is provided by default. | |
71c17aec | 2608 | |
a6020335 MH |
2609 | ** Isearch |
2610 | ||
2611 | *** New hook `isearch-update-post-hook' that runs in `isearch-update'. | |
2612 | ||
9326ba26 CY |
2613 | ** Progress reporters can now "spin". |
2614 | The MIN-VALUE and MAX-VALUE arguments of `make-progress-reporter' can | |
2615 | now be nil, or omitted. This makes a "non-numeric" reporter. Each | |
2616 | time you call `progress-reporter-update' on that progress reporter, | |
2617 | with a nil or omitted VALUE argument, the reporter message is | |
2618 | displayed with a "spinning bar". | |
2619 | ||
3e214b50 JB |
2620 | ** New variable `revert-buffer-in-progress-p' is true while a buffer is |
2621 | being reverted, even if the buffer has a local `revert-buffer-function'. | |
2622 | ||
001bf877 GM |
2623 | ** New variables `delayed-warnings-list' and `delayed-warnings-hook'. |
2624 | If delayed-warnings-list is non-nil, the command loop calls | |
7d301ae6 CY |
2625 | `delayed-warnings-hook' after `post-command-hook'. At present, this |
2626 | is only used by Emacs on some platforms to display warnings during | |
2627 | startup, which might otherwise not be noticed. This uses the | |
2628 | functions `display-delayed-warnings' and `collapse-delayed-warnings'. | |
001bf877 | 2629 | |
6420d28b CY |
2630 | ** rx.el has a new `group-n' construct for explicitly numbered groups. |
2631 | ||
dac86404 GM |
2632 | ** New function `make-composed-keymap' that constructs a new keymap |
2633 | from multiple input maps. You can use this to make a keymap that | |
2634 | inherits from multiple maps, eg: | |
2635 | (set-keymap-parent newmap (make-composed-keymap othermap parent)) | |
43dc9f5b | 2636 | |
c8f6ec5c GM |
2637 | ** New function `string-prefix-p'. |
2638 | (This was actually added in Emacs 23.2 but was not advertised at the time.) | |
2639 | ||
27f7ef2f | 2640 | ** New reader macro ## that stands for the empty symbol. |
43dc9f5b AS |
2641 | This means that the empty symbol can now be read back. Also, #: by itself |
2642 | (when not immediately followed by a possible symbol character) stands for | |
2643 | an empty uninterned symbol. | |
041d709f | 2644 | |
fead402d CY |
2645 | ** New math functions `isnan', `copysign', `frexp', `ldexp'. |
2646 | ||
7d301ae6 | 2647 | ** The following functions and variables are obsolete: |
041d709f | 2648 | |
05f77e38 GM |
2649 | *** `tooltip-use-echo-area' is obsolete. |
2650 | Rather than setting this to t, disable Tooltip mode instead. | |
2651 | ||
041d709f CY |
2652 | *** buffer-substring-filters is obsolete. |
2653 | Use `filter-buffer-substring-functions' instead. | |
2654 | ||
2655 | *** `byte-compile-disable-print-circle' is obsolete. | |
2656 | ||
2657 | *** `deferred-action-list' and `deferred-action-function' are obsolete. | |
f160676e GM |
2658 | Use `post-command-hook' instead. |
2659 | ||
67e729a5 CY |
2660 | *** `font-lock-maximum-size' is obsolete. |
2661 | ||
eb199145 | 2662 | \f |
93e0bed6 | 2663 | * Changes in Emacs 24.1 on Non-Free Operating Systems |
d53a60a6 | 2664 | |
7a22e700 | 2665 | ** On MS Windows, Emacs warns when using the obsolete init file _emacs, |
a2f0118c GM |
2666 | and also when HOME is set to C:\ by default. |
2667 | ||
7a22e700 | 2668 | ** New configure.bat options |
04779484 | 2669 | |
7a22e700 | 2670 | *** --enable-checking builds Emacs with extra runtime checks. |
e3aef5c6 | 2671 | |
7a22e700 | 2672 | *** --distfiles specifies files to be included in binary distribution. |
e2574f2c | 2673 | |
7a22e700 OK |
2674 | *** --without-gnutls disables automatic GnuTLS detection. |
2675 | ||
a0d363f4 | 2676 | *** --lib for general library linkage, works with the USER_LIBS build variable. |
e2574f2c | 2677 | |
0a19a6f8 | 2678 | ** New make target `dist' to create binary distribution for MS Windows. |
e3aef5c6 | 2679 | |
1f5e1a16 GM |
2680 | ** The Lisp function `w32-default-color-map' is now obsolete. |
2681 | (It is only used internally in the Emacs C code.) | |
5430d399 | 2682 | |
1f5e1a16 GM |
2683 | ** Customize ns-auto-hide-menu-bar to have the menu-bar hidden, but |
2684 | reappear on mouse-over. (Requires OS X 10.6 or later.) | |
04e2ce72 | 2685 | |
ad7c802c CY |
2686 | ** On Mac OS X, dragging a file into Emacs visits the file, like on |
2687 | other platforms, rather than inserting its contents into the buffer. | |
2688 | ||
05197f40 | 2689 | \f |
a933dad1 | 2690 | ---------------------------------------------------------------------- |
5b87ad55 | 2691 | This file is part of GNU Emacs. |
a933dad1 | 2692 | |
ab73e885 | 2693 | GNU Emacs is free software: you can redistribute it and/or modify |
5b87ad55 | 2694 | it under the terms of the GNU General Public License as published by |
ab73e885 GM |
2695 | the Free Software Foundation, either version 3 of the License, or |
2696 | (at your option) any later version. | |
5b87ad55 GM |
2697 | |
2698 | GNU Emacs is distributed in the hope that it will be useful, | |
2699 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
2700 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
2701 | GNU General Public License for more details. | |
a933dad1 | 2702 | |
5b87ad55 | 2703 | You should have received a copy of the GNU General Public License |
ab73e885 | 2704 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
a933dad1 | 2705 | |
05197f40 | 2706 | \f |
a933dad1 DL |
2707 | Local variables: |
2708 | mode: outline | |
2709 | paragraph-separate: "[ \f]*$" | |
2710 | end: |