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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 | 25 | |
ffdc270a | 26 | ** Emacs can be compiled with ACL support. |
7c3d167f RF |
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 | |
ffdc270a | 29 | configure option `--disable-acl'. |
7c3d167f | 30 | |
2f23b3ab MA |
31 | ** Emacs can be compiled with file notification support. |
32 | The configure option `--with-file-notification=LIB' enables file | |
02f473a4 | 33 | notification support in Emacs. This option's value should be `yes', |
2f23b3ab MA |
34 | `no', `gfile', `inotify' or `w32'. `yes' is a synonym for `w32' on |
35 | MS-Windows, and for `gfile' otherwise. The default value is `yes'. | |
36 | ||
aec32f66 | 37 | ** The configure option --with-crt-dir has been removed. |
f1e496a5 EZ |
38 | It is no longer needed, as the crt*.o files are no longer linked |
39 | specially. | |
40 | ||
41 | ** Emacs for MS-Windows can now be built by running the configure script | |
42 | using the MSYS environment and MinGW development tools. | |
43 | This is from now on the preferred method of building Emacs on | |
44 | MS-Windows. The Windows-specific configure.bat and makefile.w32-in | |
45 | files are deprecated. See the file nt/INSTALL.MSYS for detailed | |
46 | instructions. | |
aec32f66 | 47 | |
5c20c8b7 EZ |
48 | Using the Posix configure script and Makefile's also means a change in |
49 | the directory structure of the Emacs installation on Windows. It is | |
50 | now the same as on GNU and Unix systems. In particular, the auxiliary | |
51 | programs, such as cmdproxy.exe and hexl.exe, are in | |
52 | libexec/emacs/VERSION/i686-pc-mingw32 (where VERSION is the Emacs | |
53 | version), version-independent site-lisp is in share/emacs/site-lisp, | |
54 | version-specific Lisp files are in share/emacs/VERSION/lisp and in | |
55 | share/emacs/VERSION/site-lisp, Info docs are in share/info, and data | |
56 | files are in share/emacs/VERSION/etc. (Emacs knows about all these | |
57 | directories and will find the files in there automatically; there's no | |
58 | need to set any variables due to this change.) | |
59 | ||
ae7bfbf5 JB |
60 | ** Directories passed to configure option `--enable-locallisppath' are |
61 | no longer created during installation. | |
62 | ||
c57b2d76 | 63 | \f |
95a32efb | 64 | * Startup Changes in Emacs 24.4 |
c57b2d76 GM |
65 | |
66 | \f | |
95a32efb | 67 | * Changes in Emacs 24.4 |
c6c08d3f | 68 | |
29f47822 LL |
69 | ** Key ? also describes prefix bindings like C-h. |
70 | ||
61a5bb85 BG |
71 | +++ |
72 | ** `apropos-variable' is now `apropos-user-option' | |
73 | `apropos-user-option' shows all user options while `apropos-variable' | |
74 | shows all variables. When called with a universal prefix argument, | |
75 | the two commands swap their behaviors. When `apropos-do-all' is | |
76 | non-nil, they output the same results. | |
77 | ||
c6c08d3f GM |
78 | +++ |
79 | ** `eval-defun' on an already defined defcustom calls the :set function, | |
80 | if there is one. | |
81 | ||
97a1cd9d GM |
82 | ** If the new variable `enable-dir-local-variables' is nil, |
83 | directory local variables are ignored. May be useful for some modes | |
84 | that want to ignore directory-locals while still respecting file-locals. | |
85 | ||
5dea55d2 CY |
86 | ** The option `set-mark-default-inactive' has been deleted. |
87 | This unfinished feature was introduced by accident in Emacs 23.1; | |
88 | simply disabling Transient Mark mode does the same thing. | |
89 | ||
dc646358 CK |
90 | ** `initial-buffer-choice' can now specify a function to set up the |
91 | initial buffer. | |
92 | ||
ef099a94 MN |
93 | ** `remember-notes' creates a buffer whose content is saved on kill-emacs. |
94 | You may think of it as a *scratch* buffer whose content is preserved. | |
95 | In fact, it was designed as a replacement for *scratch* buffer and can | |
96 | be used that way by setting `initial-buffer-choice' to `remember-notes' | |
97 | and `remember-notes-buffer-name' to "*scratch*". Without the second | |
98 | change, *scratch* buffer will still be there for notes that do not | |
99 | need to be preserved. | |
100 | ||
cbee2131 PE |
101 | ** `write-region-inhibit-fsync' now defaults to t in batch mode. |
102 | ||
7c3d167f RF |
103 | ** ACL support has been added. |
104 | +++ | |
105 | *** Emacs preserves the ACL entries of files when backing up. | |
106 | +++ | |
107 | *** New functions `file-acl' and `set-file-acl' get and set the ACL | |
66447e07 EZ |
108 | entries of a file. On GNU/Linux, the POSIX ACL interface is used via |
109 | libacl. On MS-Windows, the NT Security APIs are used to emulate the | |
110 | POSIX ACL interfaces. | |
7c3d167f | 111 | |
99548339 | 112 | ** New option `scroll-bar-adjust-thumb-portion'. |
a219080b EZ |
113 | Available only on X, this option allows to control over-scrolling |
114 | using the scroll bar (i.e. dragging the thumb down even when the end | |
115 | of the buffer is visible). | |
99548339 | 116 | |
708e05f6 LMI |
117 | ** New function `add-face-text-property' has been added, which can be |
118 | used to conveniently prepend/append new face attributes to text. | |
119 | ||
a6d63d97 GM |
120 | ** In compiled Lisp files, the header no longer includes a timestamp. |
121 | ||
4e3f9230 YM |
122 | ** Multi-monitor support has been added. |
123 | ||
124 | *** New functions `display-monitor-attributes-list' and | |
125 | `frame-monitor-attributes' can be used to obtain information about | |
126 | each physical monitor on multi-monitor setups. | |
127 | ||
c57b2d76 | 128 | \f |
95a32efb | 129 | * Editing Changes in Emacs 24.4 |
4f0552c2 | 130 | |
0aa3616e SB |
131 | ** `split-window' is no longer a command, just a non-interactive function. |
132 | As a command it was a special case of `split-window-below', and as such | |
133 | superfluous. After being reimplemented in Lisp, its interactive form | |
134 | was mistakenly retained. | |
135 | ||
a45b7647 JL |
136 | ** New commands `toggle-frame-fullscreen' and `toggle-frame-maximized', |
137 | bound to <f11> and M-<f10>, respectively. | |
37f38bca | 138 | |
958614cf GM |
139 | ** In keymaps where SPC scrolls, S-SPC now scrolls in the reverse direction. |
140 | Eg View mode, etc. | |
141 | ||
4c672a0f EZ |
142 | +++ |
143 | ** New option `visual-order-cursor-movement'. | |
144 | If this is non-nil, cursor motion with arrow keys will follow the | |
145 | visual order of characters on the screen: <left> always moves to the | |
146 | left, <right> always moves to the right, disregarding the surrounding | |
147 | bidirectional context. | |
148 | ||
0b1619da LL |
149 | ** New command `kmacro-to-register' to store keyboard macros in registers. |
150 | ||
ac2f8659 MY |
151 | ** Shell Script mode |
152 | ||
153 | *** `sh-mode' now has the mode own `add-log-current-defun-function'. | |
154 | You can pick the name of the function and the variables with `C-x 4 a'. | |
155 | ||
4f0552c2 | 156 | \f |
95a32efb | 157 | * Changes in Specialized Modes and Packages in Emacs 24.4 |
4f0552c2 | 158 | |
26b3353a TH |
159 | ** `eshell' now supports visual subcommands and options |
160 | Eshell has been able to handle "visual" commands (interactive, | |
161 | non-line oriented commands such as top that require display | |
162 | capabilities not provided by eshell) by running them in an Emacs | |
163 | terminal emulator. See `eshell-visual-commands'. | |
164 | ||
165 | This feature has been extended to subcommands and options that make a | |
166 | usually line-oriented command a visual command. Typical examples are | |
167 | "git log" and "git <command> --help" which display their output in a | |
168 | pager by default. See `eshell-visual-subcommands' and | |
169 | `eshell-visual-options'. | |
170 | ||
3179b276 LMI |
171 | ** If your Emacs is compiled with libxml2 support, you can use the new |
172 | built-in web browser `eww'. | |
173 | ||
c034abda BG |
174 | ** `remember' can now store notes in separates files |
175 | You can use the new function `remember-store-in-files' within the | |
176 | `remember-handler-functions' option. | |
177 | ||
178 | See `remember-data-directory' and `remember-directory-file-name-format' | |
179 | for new options related to this function. | |
632556e4 SM |
180 | ** `ido-decorations' has been slightly extended to give a bit more control. |
181 | ||
940e5099 SM |
182 | ** More packages look for ~/.emacs.d/<foo> additionally to ~/.<foo>. |
183 | Affected files: | |
184 | ~/.emacs.d/timelog replaces ~/.timelog | |
940e5099 SM |
185 | ~/.emacs.d/vip replaces ~/.vip |
186 | ~/.emacs.d/viper replaces ~/.viper | |
187 | ~/.emacs.d/ido.last replaces ~/.ido.last | |
188 | ~/.emacs.d/kkcrc replaces ~/.kkcrc | |
189 | ~/.emacs.d/quickurls replaces ~/.quickurls | |
190 | ~/.emacs.d/idlwave replaces ~/.idlwave | |
191 | ~/.emacs.d/bdfcache.el replaces ~/.bdfcache.el | |
192 | ~/.emacs.d/places replaces ~/.emacs-places | |
193 | ~/.emacs.d/shadows replaces ~/.shadows | |
194 | ~/.emacs.d/shadow_todo replaces ~/.shadow_todo | |
195 | ~/.emacs.d/strokes replaces ~/.strokes | |
196 | ~/.emacs.d/notes replaces ~/.notes | |
197 | ~/.emacs.d/type-break replaces ~/.type-break | |
d29bf51c SB |
198 | Also the following files used by the now obsolete otodo-mode.el: |
199 | ~/.emacs.d/todo-do replaces ~/.todo-do | |
200 | ~/.emacs.d/todo-done replaces ~/.todo-done | |
201 | ~/.emacs.d/todo-top replaces ~/.todo-top | |
202 | ||
e56221d5 | 203 | |
c4f268a1 SM |
204 | ** Delphi mode is now called OPascal mode. |
205 | *** All delphi-* variables and functions have been renamed to opascal-*. | |
02f473a4 JB |
206 | *** `delphi-newline-always-indents' is not supported any more. |
207 | Use `electric-indent-mode' instead. | |
c4f268a1 SM |
208 | *** `delphi-tab' is gone, replaced by `indent-for-tab-command'. |
209 | ||
0b1619da LL |
210 | ** Eldoc Mode works properly in the minibuffer. |
211 | ||
e5b5a34d SM |
212 | ** jit-lock-debug-mode lets you use the debuggers on code run via jit-lock. |
213 | ||
b14abca9 RW |
214 | ** completing-read-multiple's separator can now be a regexp. |
215 | The default separator is changed to allow surrounding spaces around the comma. | |
216 | ||
19b748ad TM |
217 | ** Battery |
218 | ||
219 | *** Battery information via the BSD `apm' utility is now supported. | |
220 | ||
96673afe JL |
221 | ** Buffer Menu |
222 | ||
223 | *** `M-s a C-o' shows lines matching a regexp in marked buffers using Occur. | |
224 | ||
fd3a9a6b GM |
225 | ** Calendar and Diary |
226 | ||
227 | +++ | |
f8780a05 | 228 | *** New variable `diary-from-outlook-function', used by the command |
fd3a9a6b GM |
229 | `diary-from-outlook'. |
230 | ||
ba30c70f GM |
231 | ** cl-lib |
232 | ||
233 | *** New macro cl-tagbody. | |
234 | ||
235 | +++ | |
236 | *** letf is now just an alias for cl-letf. | |
237 | ||
0e70ce93 PE |
238 | ** Calc |
239 | ||
240 | *** Calc by default now uses the Gregorian calendar for all dates, and | |
241 | uses January 1, 1 AD as its day number 1. Previously Calc used the | |
242 | Julian calendar for dates before September 14, 1752, and it used | |
243 | December 31, 1 BC as its day number 1; the new scheme is more | |
244 | consistent with Calendar's calendrical system and day numbering. | |
245 | ||
246 | *** The new variable `calc-gregorian-switch' lets you configure the | |
247 | date when Calc switches from the Julian to the Gregorian calendar. | |
248 | Nil, the default value, means to always use the Gregorian calendar. | |
249 | The value (YEAR MONTH DAY) means to start using the Gregorian calendar | |
250 | on the given date. | |
251 | ||
86e100a6 GM |
252 | *** Support for ISO 8601 dates. |
253 | ||
5db9dace JL |
254 | ** Desktop |
255 | ||
256 | *** `desktop-auto-save-timeout' defines the number of seconds between | |
257 | auto-saves of the desktop. | |
258 | ||
2addf922 | 259 | *** `desktop-restore-frames enables saving and restoring the window/frame |
39c0e36f JB |
260 | configuration. |
261 | ||
a2a538b1 CS |
262 | ** Dired |
263 | ||
264 | *** New minor mode `dired-hide-details-mode' hides details. | |
265 | ||
21859ebc EH |
266 | ** ERC |
267 | ||
268 | *** New option `erc-accidental-paste-threshold-seconds'. | |
269 | If set to a number, this can be used to avoid accidentally paste large | |
270 | amounts of data into the ERC input. | |
271 | ||
7cc8ae06 GM |
272 | --- |
273 | ** New F90 mode option `f90-smart-end-names'. | |
274 | ||
02f473a4 | 275 | ** Icomplete is a bit more like Ido. |
21859ebc EH |
276 | *** key bindings to navigate through and select the completions. |
277 | *** The icomplete-separator is customizable, and its default has changed. | |
278 | *** Removed icomplete-show-key-bindings. | |
279 | ||
2a43515a | 280 | ** Image mode |
20de6ab6 CW |
281 | |
282 | *** New commands `n' (`image-next-file') and `p' (`image-previous-file') | |
283 | visit the next image file and the previous image file in the same | |
284 | directory, respectively. | |
285 | ||
c0211c4e GM |
286 | *** New commands to show specific frames of multi-frame images. |
287 | `f' (`image-next-frame') and `b' (`image-previous-frame') visit the | |
288 | next or previous frame. `F' (`image-goto-frame') shows a specific frame. | |
289 | ||
2a43515a CY |
290 | --- |
291 | *** The command `image-mode-fit-frame' deletes other windows. | |
292 | When toggling, it restores the frame's previous window configuration. | |
293 | It also has an optional frame argument, which can be used by Lisp | |
294 | callers to fit the image to a frame other than the selected frame. | |
295 | ||
e38e6780 JL |
296 | ** Info |
297 | ||
298 | *** New face `info-index-match' is used to highlight matches in index | |
299 | entries displayed by `Info-index-next', `Info-virtual-index' and | |
300 | `info-apropos'. | |
301 | ||
e5e4a942 JL |
302 | ** Hi-Lock |
303 | ||
304 | *** New option `hi-lock-auto-select-face'. When non-nil, hi-lock commands | |
305 | will cycle through faces in `hi-lock-face-defaults' without prompting. | |
306 | ||
307 | +++ | |
308 | *** New global command `M-s h .' (`highlight-symbol-at-point') | |
309 | highlights the symbol found near point without prompting, | |
310 | using the next face automatically. | |
311 | ||
d289938a | 312 | ** Search and Replace |
279f9b06 | 313 | |
e5e4a942 JL |
314 | *** New global command `M-s .' (`isearch-forward-symbol-at-point') |
315 | starts a symbol (identifier) incremental search forward with the | |
316 | symbol found near point added to the search string initially. | |
317 | ||
279f9b06 JL |
318 | *** `C-x 8 RET' in Isearch mode reads a character by its Unicode name |
319 | and adds it to the search string. | |
320 | ||
2db59b1d XF |
321 | *** `M-s i' in Isearch mode toggles the variable `isearch-invisible' |
322 | between nil and the value of the option `search-invisible' (or `open' | |
323 | when it's nil). | |
01dea85f | 324 | |
d289938a JL |
325 | *** `query-replace' skips invisible text when `search-invisible' is nil, |
326 | and opens overlays with hidden text when `search-invisible' is `open'. | |
327 | ||
80fa505f AM |
328 | +++ |
329 | *** By default, prefix arguments do not now terminate Isearch mode. | |
330 | Set `isearch-allow-prefix' to nil to restore old behavior. | |
331 | ||
6e8cfc81 JL |
332 | *** More Isearch commands accept prefix arguments, namely |
333 | `isearch-printing-char', `isearch-quote-char', `isearch-yank-word', | |
334 | `isearch-yank-line'. | |
335 | ||
a22289f7 JL |
336 | *** Word search now matches whitespace at the beginning/end |
337 | of the search string if it contains leading/trailing whitespace. | |
338 | In an incremental word search or when using a non-nil LAX argument | |
339 | of `word-search-regexp', the lax matching can also match part of | |
340 | the first word (in addition to the lax matching of the last word). | |
341 | The same rules are now applied to the symbol search with the difference | |
342 | that it matches symbols, and non-symbol characters between symbols. | |
343 | ||
5a3cbc03 | 344 | ** MH-E has been updated to MH-E version 8.5. |
6827cac1 BW |
345 | See MH-E-NEWS for details. |
346 | ||
13a40633 GM |
347 | --- |
348 | ** The unrmail command converts from BABYL to mboxrd rather than mboxo. | |
349 | Customize `unrmail-mbox-format' to change this. | |
350 | ||
351 | --- | |
352 | ** Similarly, customize `rmail-mbox-format' to influence some minor aspects | |
353 | of how Rmail displays non-MIME messages. | |
354 | ||
4f0552c2 GM |
355 | +++ |
356 | ** New function `ses-rename-cell' to give SES cells arbitrary names. | |
357 | ||
8b62d742 SM |
358 | ** trace-function was largely rewritten. |
359 | New features include: | |
360 | - no prompting for the destination buffer, unless a prefix-arg was used. | |
361 | - additionally to prompting for a destination buffer, when a prefix-arg is | |
362 | used, the user can enter a "context", i.e. Lisp expression whose value at the | |
363 | time the function is entered/exited will be printed along with the function | |
364 | name and arguments. Useful to trace the value of (current-buffer) or | |
365 | (point) when the function is invoked. | |
366 | ||
9631677d SS |
367 | ** New command `delete-duplicate-lines' has new types of operation: |
368 | When its arg ADJACENT is non-nil (when called interactively with C-u C-u) | |
c38a186c JL |
369 | it works like the utility `uniq'. Otherwise by default it deletes |
370 | duplicate lines everywhere in the region without regard to adjacency. | |
02f473a4 JB |
371 | When its arg KEEP-BLANKS is non-nil (when called interactively with |
372 | C-u C-u C-u), duplicate blank lines are preserved. | |
c38a186c | 373 | |
ad4de702 MN |
374 | ** New `cycle-spacing' command allows cycling between having just one |
375 | space, no spaces, or reverting to the original spacing. Like | |
376 | `just-one-space' command it can handle or ignore newlines and | |
377 | leave different number of spaces. | |
378 | ||
d29bf51c SB |
379 | ** Todo mode has been rewritten and enhanced. |
380 | New features include: | |
381 | - support for multiple todo files and archive files of done items; | |
382 | - renaming, reordering, moving, merging, and deleting categories; | |
383 | - sortable tabular summaries of categories and the types of items they contain; | |
adc5dbce | 384 | - cross-category lists of items filtered by specific criteria; |
d29bf51c SB |
385 | - more fine-grained interaction with the Emacs diary, by being able to decide |
386 | for each todo item whether it appears in the Fancy Diary display; | |
387 | - highly flexible new item insertion and item editing; | |
388 | - moving items between categories, storing done items in their category or in | |
389 | archive files, undoing or unarchiving done items; | |
390 | - reprioritizing items by inputting a numerical priority; | |
391 | - extensive customizability of operation and display, including numerous faces. | |
392 | To support some of these features, a new file format is used, which is | |
393 | incompatible with the old format; however, you can convert old todo and done | |
394 | item files to the new format on initializing the first new todo file, or at any | |
395 | later time with the provided conversion command. The old version of | |
396 | todo-mode.el has been made obsolete and renamed otodo-mode.el. | |
397 | ||
aefa2ead | 398 | ** Tramp |
26280467 | 399 | |
aefa2ead MA |
400 | +++ |
401 | *** New connection method "adb", which allows to access Android | |
19dc8b9e MA |
402 | devices by the Android Debug Bridge. The variable `tramp-adb-program' |
403 | can be used to adapt the path of the "adb" program, if needed. | |
26280467 | 404 | |
19dc8b9e MA |
405 | *** The connection methods "plink1", "ssh1", "ssh2", "scp1", "scp2", |
406 | "scpc" and "rsyncc" are discontinued. The ssh option | |
407 | "ControlMaster=auto" is set automatically in all ssh-based methods, | |
408 | when possible. | |
26280467 | 409 | |
ed7367b1 MA |
410 | +++ |
411 | *** Handlers for `file-acl' and `set-file-acl' for remote machines | |
412 | which support POSIX ACLs. | |
aefa2ead | 413 | |
f1c7dee9 MA |
414 | +++ |
415 | *** Handlers for `file-notify-add-watch' and `file-notify-rm-watch' | |
416 | for remote machines which support filesystem notifications. | |
417 | ||
238cebef GM |
418 | ** VHDL mode |
419 | ||
420 | *** New options: `vhdl-actual-generic-name', `vhdl-beautify-options'. | |
421 | ||
422 | *** New commands: `vhdl-fix-statement-region', `vhdl-fix-statement-buffer'. | |
423 | ||
433212bf CY |
424 | ** Woman |
425 | ||
426 | *** The commands `woman-default-faces' and `woman-monochrome-faces' | |
427 | are obsolete. Customize the `woman-* faces instead. | |
428 | ||
aa534cb7 AG |
429 | ** Eshell |
430 | ||
f1c7dee9 | 431 | *** Added Eshell-Tramp module |
aa534cb7 | 432 | External su and sudo commands are now the default; the internal, |
f1c7dee9 | 433 | Tramp-using variants can still be used by enabling the eshell-tramp |
aa534cb7 AG |
434 | module. |
435 | ||
bb102690 GM |
436 | ** New term.el option `term-suppress-hard-newline'. |
437 | ||
770de7cf CY |
438 | ** Obsolete packages: |
439 | ||
440 | *** longlines.el is obsolete; use visual-line-mode instead. | |
441 | ||
27c8b6eb GM |
442 | +++ |
443 | *** sup-mouse.el. | |
444 | ||
ce3e7725 CY |
445 | *** terminal.el is obsolete; use term.el instead. |
446 | ||
d29bf51c SB |
447 | *** The previous version of todo-mode.el is obsolete and renamed otodo-mode.el. |
448 | ||
30bce3f0 MA |
449 | *** xesam.el. |
450 | ||
4e16ddf4 GM |
451 | +++ |
452 | *** yow.el is obsolete; use fortune.el or cookie1.el instead. | |
453 | ||
5313bbc7 GM |
454 | --- |
455 | *** The Info-edit command is obsolete. Editing Info nodes by hand | |
456 | has not been relevant for some time. | |
457 | ||
4f0552c2 | 458 | \f |
95a32efb | 459 | * New Modes and Packages in Emacs 24.4 |
02f473a4 | 460 | |
002668e1 TZ |
461 | ** New `superword-mode' in subword.el |
462 | `superword-mode' overrides the default word motion commands to treat | |
463 | symbol_words as a single word, similar to what `subword-mode' does and | |
464 | using the same internal functions. | |
465 | ||
231d8498 SM |
466 | ** New nadvice.el package offering lighter-weight advice facilities. |
467 | It is layered as: | |
468 | - add-function/remove-function which can be used to add/remove code on any | |
469 | function-carrying place, such as process-filters or `<foo>-function' hooks. | |
470 | - advice-add/advice-remove to add/remove a piece of advice on a named function, | |
471 | much like `defadvice' does. | |
472 | ||
f1c7dee9 MA |
473 | ** The package file-notify.el provides an interface for file system |
474 | notifications. It requires, that Emacs is compiled with one of the | |
475 | low-level libraries gfilenotify.c, inotify.c or w32notify.c. | |
476 | ||
c57b2d76 | 477 | \f |
95a32efb | 478 | * Incompatible Lisp Changes in Emacs 24.4 |
da03ef8a | 479 | |
db3b7db5 SM |
480 | ** The syntax of ?» and ?« is now punctuation instead of matched parens. |
481 | Some languages match those as »...« and others as «...» so better stay neutral. | |
482 | ||
0b31660d SM |
483 | ** The default file coding for Emacs Lisp files is now utf-8. |
484 | (See file-coding-system-alist.) In most cases, this change is transparent, but | |
485 | files that contain unusual characters without specifying an explicit coding | |
486 | system may fail to load with obscure errors. | |
179fcac8 | 487 | You should either convert them to utf-8 or add an explicit `coding:' cookie. |
0b31660d | 488 | |
bfa3acd6 SM |
489 | ** overriding-terminal-local-map does not replace the local keymaps any more. |
490 | It used to disable the minor mode, major mode, and text-property keymaps, | |
491 | whereas now it simply has higher precedence. | |
492 | ||
a0eb10b3 | 493 | ** Default process filters and sentinels are not nil any more. |
1aa8d505 SM |
494 | Instead they default to a function which does what the nil value used to do. |
495 | ||
25c09217 SM |
496 | ** `read-event' does not return decoded chars in ttys any more. |
497 | Just as was the case in Emacs-22 and before, decoding of tty input according to | |
498 | keyboard-coding-system is not performed in read-event any more. But contrary | |
499 | to that past, it is still done before input-decode-map/function-key-map/... | |
500 | ||
99d0d6dc SM |
501 | ** Removed inhibit-local-menu-bar-menus. |
502 | ||
e02230bf SM |
503 | ** frame-local variables that affect redisplay do not work any more. |
504 | More specifically, the redisplay does not bother to check for a frame-local | |
505 | value when looking up variables. | |
506 | ||
eadf1faa SM |
507 | ** nil and "unbound" are indistinguishable in symbol-function. |
508 | `symbol-function' never signals `void-function' any more. | |
509 | `fboundp' returns non-nil if the symbol was `fset' to nil. | |
510 | ||
3c442f8b SM |
511 | ** `defadvice' does not honor the `freeze' flag and cannot advise |
512 | special-forms any more. | |
7db1bda8 | 513 | |
da03ef8a SM |
514 | ** `dolist' in lexical-binding mode does not bind VAR in RESULT any more. |
515 | VAR was bound to nil which was not tremendously useful and just lead to | |
516 | spurious warnings about an unused var. | |
517 | ||
7c3d167f RF |
518 | ** The return value of `backup-buffer' has changed. |
519 | The second argument is no longer an SELinux context, instead it is an | |
520 | alist of extended attributes as returned by the new function | |
521 | `file-extended-attributes'. The attributes can be applied to another | |
522 | file using `set-file-extended-attributes'. | |
523 | ||
c57b2d76 | 524 | \f |
97a1cd9d | 525 | * Lisp Changes in Emacs 24.4 |
57618ecf | 526 | |
de0503df SM |
527 | +++ |
528 | ** New macro with-eval-after-load. Like eval-after-load, but better behaved. | |
529 | ||
dd8791e9 | 530 | ** Obsoleted functions: |
89561f72 | 531 | *** `log10' |
dd8791e9 SM |
532 | *** `dont-compile' |
533 | *** `lisp-complete-symbol' | |
534 | *** `field-complete' | |
535 | *** `minibuffer-completion-contents' | |
66fc57e3 JL |
536 | *** `isearch-nonincremental-exit-minibuffer' |
537 | *** `isearch-filter-visible' | |
e3eb1bb7 | 538 | *** `generic-make-keywords-list' |
d3e9f3a8 | 539 | |
d36ed1c8 SM |
540 | ** `with-wrapper-hook' is obsoleted by `add-function'. |
541 | The few hooks that used with-wrapper-hook are replaced as follows: | |
542 | *** `abbrev-expand-function' obsoletes `abbrev-expand-functions'. | |
543 | *** `completion-in-region-function' obsoletes `completion-in-region-functions'. | |
544 | *** `filter-buffer-substring-function' obsoletes `filter-buffer-substring-functions'. | |
545 | ||
546 | ||
f557c1b1 SM |
547 | ** `get-upcase-table' is obsoleted by the new `case-table-get-table'. |
548 | ||
81606b10 RS |
549 | ** Support for filesystem notifications. |
550 | Emacs now supports notifications of filesystem changes, such as | |
551 | creation, modification, and deletion of files. This requires the | |
2f23b3ab MA |
552 | `glib' API, or the 'inotify' API (on GNU/Linux systems only). On |
553 | MS-Windows systems, this is supported for Windows XP and newer | |
554 | versions. | |
81606b10 | 555 | |
add89f61 MA |
556 | ** Changes in autorevert.el |
557 | ||
558 | --- | |
559 | *** If Emacs is compiled with file notification support, notifications | |
560 | are used instead of checking the time stamp of the files. You can | |
561 | disable this by setting the user option `auto-revert-use-notify' to | |
562 | nil. Alternatively, a regular expression of directories to be | |
563 | excluded from file notifications can be specified by | |
564 | `auto-revert-notify-exclude-dir-regexp'. | |
565 | ||
566 | --- | |
567 | *** The new user option `auto-revert-remote-files' enables reversion | |
568 | of remote files when set to non-nil. | |
569 | ||
1c4f115d CY |
570 | ** Face changes |
571 | ||
02f473a4 | 572 | *** The function `face-spec-set' is now analogous to `setq' for face specs. |
1c4f115d CY |
573 | Its third arg now accepts values specifying exactly which face spec to |
574 | set (defface, custom, or user spec), and it directly sets the relevant | |
575 | property using the supplied face spec. | |
576 | ||
577 | *** Face specs set via Custom themes now replace the `defface' spec | |
578 | rather than inheriting from it (as do face specs set via Customize). | |
579 | ||
073ca75b JL |
580 | *** New face characteristic (supports :underline (:style wave)) |
581 | specifies whether or not the terminal can display a wavy line. | |
582 | ||
f0c954fa GM |
583 | ** Image API |
584 | ||
585 | +++ | |
586 | *** `image-animated-p' is now `image-multi-frame-p'. | |
587 | It returns non-nil for any image that contains multiple frames, | |
588 | whether or not it specifies a frame delay. | |
589 | ||
590 | +++ | |
591 | *** When animating images that do not specify a frame delay, | |
592 | Emacs uses `image-default-frame-delay'. | |
593 | ||
594 | +++ | |
595 | *** New functions `image-current-frame' and `image-show-frame' for getting | |
596 | and setting the current frame of a multi-frame image. | |
597 | ||
855b17af | 598 | ** time-to-seconds is not obsolete any more. |
231d8498 | 599 | ** New function special-form-p. |
57618ecf SM |
600 | ** Docstrings can be made dynamic by adding a `dynamic-docstring-function' |
601 | text-property on the first char. | |
602 | ||
32e5c58c SM |
603 | ** The `defalias-fset-function' property lets you catch calls to defalias |
604 | and redirect them to your own function instead of `fset'. | |
605 | ||
70743157 | 606 | ** The lock for 'DIR/FILE' is now 'DIR/.#FILE' and may be a regular file. |
b5029e23 PE |
607 | When you edit DIR/FILE, Emacs normally creates a symbolic link |
608 | DIR/.#FILE as a lock that warns other instances of Emacs that DIR/FILE | |
609 | is being edited. Formerly, if there was already a non-symlink file | |
610 | named DIR/.#FILE, Emacs fell back on the lock names DIR/.#FILE.0 | |
611 | through DIR/.#FILE.9. These fallbacks have been removed, so that | |
612 | Emacs now no longer locks DIR/FILE in that case. | |
613 | ||
70743157 PE |
614 | On file systems that do not support symbolic links, the lock is now a |
615 | regular file with contents being what would have been in the symlink. | |
b5029e23 | 616 | |
97976f9f PE |
617 | ** The 9th element returned by `file-attributes' is now unspecified. |
618 | Formerly, it was t if the file's gid would change if file were deleted | |
619 | and recreated. This value has been inaccurate for years on many | |
620 | platforms, and nobody seems to have noticed or cared. | |
621 | ||
622 | ** The function `file-ownership-preserved-p' now has an optional | |
623 | argument GROUP which causes it check for file group too. This can be | |
624 | used in place of the 9th element of `file-attributes'. | |
625 | ||
626 | ** New functions `group-gid' and `group-real-gid'. | |
627 | ||
7c3d167f RF |
628 | ** The 6th argument to `copy-file' has been renamed to |
629 | `preserve-extended-attributes' as it now handles both SELinux context | |
630 | and ACL entries. | |
631 | ||
8fa2654e CS |
632 | ** Changes to the Emacs Lisp Coding Conventions in Emacs 24.4 |
633 | ||
634 | *** The package descriptor and name of global variables, constants, | |
0a2da075 | 635 | and functions should be separated by two hyphens if the symbol is not |
8fa2654e CS |
636 | meant to be used by other packages. |
637 | ||
c57b2d76 | 638 | \f |
97a1cd9d | 639 | * Changes in Emacs 24.4 on Non-Free Operating Systems |
95a32efb | 640 | |
5248293f GM |
641 | +++ |
642 | ** The "generate a backtrace on fatal error" feature now works on MS Windows. | |
643 | The backtrace is written to the 'emacs_backtrace.txt' file in the | |
644 | directory where Emacs was running. | |
645 | ||
8549f9e8 EZ |
646 | +++ |
647 | ** The variable `buffer-file-type' is no longer supported. | |
648 | Setting it has no effect, and %t in the mode-line format is ignored. | |
649 | Likewise, `file-name-buffer-file-type-alist' is now obsolete, and | |
650 | modifying it has no effect. | |
651 | ||
343a2aef EZ |
652 | --- |
653 | ** Lock files now work on MS-Windows. | |
654 | This allows to avoid losing your edits if the same file is being | |
655 | edited in another Emacs session or by another user. See the node | |
656 | "Interlocking" in the Emacs User Manual for the details. To disable | |
657 | file locking, customize `create-lockfiles' to nil. | |
658 | ||
c57b2d76 GM |
659 | ** Improved fullscreen support on Mac OS X. |
660 | Both native (>= OSX 10.7) and "old style" fullscreen are supported. | |
661 | Customize `ns-use-native-fullscreen' to change style. For >= 10.7 | |
662 | native is the default. | |
663 | ||
95a32efb | 664 | \f |
2a1e2476 | 665 | * Installation Changes in Emacs 24.3 |
b8df54ff | 666 | |
6bc66c10 | 667 | ** The default X toolkit is now Gtk+ version 3. |
823b2fb6 GM |
668 | If you don't pass `--with-x-toolkit' to configure, or if you use |
669 | `--with-x-toolkit=gtk' or `--with-x-toolkit=yes', configure will try | |
670 | to build with Gtk+ version 3, and if that fails, try Gtk+ version 2. | |
d71a6517 | 671 | You can explicitly require a specific version by passing |
823b2fb6 | 672 | `--with-x-toolkit=gtk2' or `--with-x-toolkit=gtk3' to configure. |
da3d2105 | 673 | |
6bc66c10 | 674 | ** New configure option `--enable-link-time-optimization', to utilize |
da3d2105 DA |
675 | an appropriate feature provided by GCC since version 4.5.0. |
676 | ||
33cb2043 GM |
677 | ** New configure option `--without-all' to disable most of the optional |
678 | features (image support, etc.) that are normally enabled by default. | |
b8df54ff | 679 | |
33cb2043 GM |
680 | ** New configure option `--enable-gcc-warnings' (for developing/debugging |
681 | Emacs). If building with GCC, this enables compile-time checks that | |
64420fcd GM |
682 | warn/give errors about possibly-questionable C code. On a recent GNU |
683 | system there should be no warnings; on older and on non-GNU systems | |
684 | the results may be useful to developers. | |
b8df54ff | 685 | |
823b2fb6 | 686 | ** The configure option `--enable-use-lisp-union-type' has been |
6bc66c10 | 687 | renamed to `--enable-check-lisp-object-type', as the resulting |
d71a6517 GM |
688 | Lisp_Object type no longer uses a union to implement the compile time |
689 | check that this option enables. | |
690 | ||
823b2fb6 | 691 | ** The configure option `--disable-maintainer-mode' has been removed, |
501390c5 PE |
692 | as it was confusingly-named and rarely useful. |
693 | ||
f14a4380 GM |
694 | ** The configure options `--program-prefix', `--program-suffix', and |
695 | `--program-transform-name' apply to more than just the installed | |
696 | binaries. Now they also affect the man pages, icons, and the | |
697 | etc/emacs.desktop file; but not the info pages, since this would break | |
698 | links between the various manuals. | |
1a9c6830 | 699 | |
823b2fb6 GM |
700 | ** You can use `NO_BIN_LINK=t make install' to prevent the installation |
701 | overwriting "emacs" in the installation bin/ directory with a link | |
6bc66c10 | 702 | to "emacs-VERSION". |
823b2fb6 | 703 | |
a4a18b8b GM |
704 | ** Emacs uses libtinfo in preference to libncurses, if available. |
705 | ||
187e9b90 GM |
706 | ** On FreeBSD and NetBSD, configure no longer adds /usr/local/lib and |
707 | /usr/pkg/lib to the linker search path. You must add them yourself if | |
708 | you want them. | |
709 | ||
6bc66c10 | 710 | ** The standalone scripts `rcs-checkin' and `vcdiff' have been removed |
276d5f5d GM |
711 | (from the bin and libexec directories, respectively). The former is |
712 | no longer relevant, the latter is replaced by lisp (in vc-sccs.el). | |
713 | ||
a1ed8b05 | 714 | \f |
2a1e2476 | 715 | * Startup Changes in Emacs 24.3 |
e5fcdb5e GM |
716 | |
717 | ** Emacs no longer searches for `leim-list.el' files beneath the standard | |
718 | lisp/ directory. There should not be any there anyway. If you have | |
823b2fb6 | 719 | been adding them there, put them somewhere else; e.g., site-lisp. |
e5fcdb5e | 720 | |
4107c81e GM |
721 | ** The `--no-site-lisp' command line option now works for Nextstep builds. |
722 | ||
a1ed8b05 | 723 | \f |
2a1e2476 | 724 | * Changes in Emacs 24.3 |
a1ed8b05 | 725 | |
6bc66c10 | 726 | ** Help |
c89926a5 | 727 | |
6bc66c10 | 728 | *** `C-h f' (`describe-function') can now perform autoloading. |
c89926a5 CY |
729 | When this command is called for an autoloaded function whose docstring |
730 | contains a key substitution construct, that function's library is | |
731 | automatically loaded, so that the documentation can be shown | |
732 | correctly. To disable this, set `help-enable-auto-load' to nil. | |
733 | ||
734 | *** `C-h f' now reports previously-autoloaded functions as "autoloaded", | |
735 | even after their associated libraries have been loaded (and the | |
736 | autoloads have been redefined as functions). | |
737 | ||
6bc66c10 | 738 | ** ImageMagick |
cd996018 | 739 | |
6bc66c10 GM |
740 | *** Images displayed via ImageMagick now support transparency and the |
741 | :background image specification property. | |
cd996018 | 742 | |
6bc66c10 | 743 | *** When available, ImageMagick support is automatically enabled. |
c505aaeb CY |
744 | It is no longer necessary to call `imagemagick-register-types' |
745 | explicitly to install ImageMagick image types; that function is called | |
7d806bfe | 746 | automatically at startup, or when customizing an imagemagick- option. |
2f940384 | 747 | |
c505aaeb | 748 | *** Setting `imagemagick-types-inhibit' to t now disables the use of |
823b2fb6 GM |
749 | ImageMagick to view images. (You must call `imagemagick-register-types' |
750 | afterwards if you do not use customize to change this.) | |
2f940384 | 751 | |
7afbaca4 | 752 | *** The new variable `imagemagick-enabled-types' also affects which |
60b5f187 GM |
753 | ImageMagick types are treated as images. The function |
754 | `imagemagick-filter-types' returns the list of types that will be | |
755 | treated as images. | |
c505aaeb | 756 | |
f3f9606c LMI |
757 | *** ImageMagick images now support the :max-width and :max-height |
758 | keywords. | |
759 | ||
6bc66c10 GM |
760 | ** Minibuffer |
761 | ||
762 | *** In minibuffer filename prompts, `C-M-f' and `C-M-b' now move to the | |
763 | next and previous path separator, respectively. | |
c505aaeb | 764 | |
6bc66c10 GM |
765 | *** `minibuffer-electric-default-mode' can shorten "(default ...)" to "[...]" |
766 | in minibuffer prompts. Just set `minibuffer-eldef-shorten-default' | |
767 | non-nil before enabling the mode. | |
768 | ||
769 | ** Mode line | |
770 | ||
771 | *** New option `mode-line-default-help-echo' specifies the help text | |
772 | (shown in a tooltip or in the echo area) for any part of the mode line | |
773 | that does not have its own specialized help text. | |
774 | ||
775 | *** You can now click mouse-3 in the coding system indicator to invoke | |
776 | `set-buffer-file-coding-system'. | |
777 | ||
778 | ** Server and client | |
2f940384 | 779 | |
f938eda9 CY |
780 | *** emacsclient now obeys string values for `initial-buffer-choice', |
781 | if it is told to open a new frame without specifying any file to visit | |
782 | or expression to evaluate. | |
db80bdc8 | 783 | |
f938eda9 | 784 | *** New option `server-auth-key' specifies a shared server key. |
f938eda9 CY |
785 | |
786 | ** Emacs now generates backtraces on fatal errors. | |
787 | On encountering a fatal error, Emacs now outputs a textual description | |
788 | of the fatal signal, and a short backtrace on platforms like glibc | |
5248293f | 789 | that support backtraces. |
2e2d2a13 | 790 | |
6bc66c10 GM |
791 | ** `C-x C-q' is now bound to the new minor mode `read-only-mode'. |
792 | This minor mode replaces `toggle-read-only', which is now obsolete. | |
793 | ||
794 | ** Most `y-or-n' prompts now allow you to scroll the selected window. | |
795 | Typing `C-v' or `M-v' at a y-or-n prompt scrolls forward or backward | |
796 | respectively, without exiting from the prompt. | |
797 | ||
798 | ** In the Package Menu, newly-available packages are listed as "new", | |
799 | and sorted above the other "available" packages by default. | |
800 | ||
f938eda9 CY |
801 | ** If your Emacs was built from a bzr checkout, the new variable |
802 | `emacs-bzr-version' contains information about the bzr revision used. | |
de6ff46d | 803 | |
6bc66c10 | 804 | ** New option `create-lockfiles' specifies usage of lockfiles. |
f938eda9 CY |
805 | It defaults to t. Changing it to nil inhibits the creation of lock |
806 | files (use this with caution). | |
dc0f75c8 | 807 | |
6bc66c10 GM |
808 | ** New option `enable-remote-dir-locals', if non-nil, allows directory-local |
809 | variables on remote hosts. | |
21ffb35a | 810 | |
f85f636a CY |
811 | ** The entry for PCL-CVS has been removed from the Tools menu. |
812 | The PCL-CVS commands are still available via the keyboard. | |
813 | ||
6bc66c10 GM |
814 | ** Using "unibyte: t" in Lisp source files is obsolete. |
815 | Use "coding: raw-text" instead. | |
816 | ||
e78e7e48 CY |
817 | ** In the buffer made by `M-x report-emacs-bug', the `C-c m' binding |
818 | has been changed to `C-c M-i' (`report-emacs-bug-insert-to-mailer'). | |
819 | The previous binding, introduced in Emacs 24.1, was a mistake, because | |
820 | `C-c LETTER' bindings are reserved for user customizations. | |
821 | ||
6bc66c10 | 822 | ** Internationalization |
2f940384 | 823 | |
f938eda9 | 824 | *** New language environment: Persian. |
2f940384 | 825 | |
f938eda9 CY |
826 | *** New input method `vietnamese-vni'. |
827 | ||
6bc66c10 | 828 | ** Nextstep (GNUstep / Mac OS X) port |
2f940384 | 829 | |
823b2fb6 | 830 | *** Support for fullscreen and the frame parameter fullscreen. |
2f940384 | 831 | |
1a9c6830 GM |
832 | *** A file dialog is used for open/save operations initiated from the |
833 | menu/toolbar. | |
834 | ||
a1ed8b05 | 835 | \f |
2a1e2476 | 836 | * Editing Changes in Emacs 24.3 |
c25df26e | 837 | |
6bc66c10 | 838 | ** Search and Replace |
d39d3c8e | 839 | |
f938eda9 CY |
840 | *** Non-regexp Isearch now performs "lax" space matching. |
841 | Each sequence of spaces in the supplied search string may match any | |
842 | sequence of one or more whitespace characters, as specified by the | |
843 | variable `search-whitespace-regexp'. (This variable is also used by a | |
823b2fb6 | 844 | similar existing feature for regexp Isearch.) |
2f940384 | 845 | |
f938eda9 CY |
846 | *** New Isearch command `M-s SPC' toggles lax space matching. |
847 | This applies to both ordinary and regexp Isearch. | |
2f940384 | 848 | |
f938eda9 CY |
849 | *** New option `replace-lax-whitespace'. |
850 | If non-nil, `query-replace' uses flexible whitespace matching too. | |
851 | The default is nil. | |
2f940384 | 852 | |
b9cb2387 JL |
853 | *** Global `M-s _' starts a symbol (identifier) incremental search, |
854 | and `M-s _' in Isearch toggles symbol search mode. | |
855 | `M-s c' in Isearch toggles search case-sensitivity. | |
856 | ||
6bc66c10 | 857 | ** Navigation commands |
48de8b12 | 858 | |
6bc66c10 GM |
859 | *** New binding `M-g c' for `goto-char'. |
860 | ||
861 | *** New binding `M-g TAB' for `move-to-column'. | |
862 | ||
863 | *** `M-g TAB' (`move-to-column') prompts for a column number if called | |
864 | interactively with no prefix arg. Previously, it moved to column 1. | |
865 | ||
866 | ** New option `yank-handled-properties' allows processing of text | |
867 | properties on yanked text, in ways that are more general than just | |
868 | removing them (as is done by `yank-excluded-properties'). | |
48de8b12 | 869 | |
48de8b12 CY |
870 | ** New option `delete-trailing-lines' specifies whether |
871 | M-x delete-trailing-whitespace should delete trailing lines at the end | |
872 | of the buffer. It defaults to t. | |
873 | ||
f938eda9 | 874 | ** `C-u M-=' now counts lines/words/characters in the entire buffer. |
826b3235 | 875 | |
48de8b12 CY |
876 | ** `C-x 8 RET' is now bound to `insert-char', which is now a command. |
877 | `ucs-insert' is now an obsolete alias for `insert-char'. | |
b2459884 | 878 | |
48de8b12 CY |
879 | ** The `z' key no longer has a binding in most special modes. |
880 | It used to be bound to `kill-this-buffer', but `z' is too easy to | |
881 | accidentally type. | |
f938eda9 | 882 | |
6bc66c10 GM |
883 | ** New command `C-x r M-w' (`copy-rectangle-as-kill'). |
884 | It copies the region-rectangle as the last rectangle kill. | |
f938eda9 | 885 | |
6bc66c10 | 886 | ** Registers |
f938eda9 | 887 | |
823b2fb6 | 888 | *** `C-x r +' is now overloaded to invoke `append-to-register'. |
f938eda9 | 889 | |
f938eda9 | 890 | *** New option `register-separator' specifies the register containing |
823b2fb6 GM |
891 | the text to put between collected texts for use with |
892 | M-x append-to-register and M-x prepend-to-register. | |
f1f4dba0 | 893 | |
a1ed8b05 | 894 | \f |
2a1e2476 | 895 | * Changes in Specialized Modes and Packages in Emacs 24.3 |
ae4969c2 | 896 | |
6bc66c10 | 897 | ** Common Lisp emulation (CL) |
f938eda9 | 898 | |
89660017 | 899 | *** CL's main entry is now (require 'cl-lib). |
823b2fb6 GM |
900 | `cl-lib' is like the old `cl' except that it uses the namespace cleanly; |
901 | i.e., all its definitions have the "cl-" prefix (and internal definitions | |
902 | use the "cl--" prefix). | |
7c1898a7 | 903 | |
823b2fb6 GM |
904 | If `cl' provided a feature under the name `foo', then `cl-lib' |
905 | provides it under the name `cl-foo' instead; with the exceptions of the | |
906 | few `cl' definitions that had to use `foo*' to avoid conflicts with | |
907 | pre-existing Elisp entities. These have been renamed to `cl-foo' | |
908 | rather than `cl-foo*'. | |
7c1898a7 | 909 | |
92246540 | 910 | The old `cl' is now deprecated and is mainly just a bunch of aliases that |
823b2fb6 | 911 | provide the old, non-prefixed names. Some exceptions are listed below: |
7c1898a7 | 912 | |
89660017 SM |
913 | *** `cl-flet' is not like `flet' (which is deprecated). |
914 | Instead it obeys the behavior of Common-Lisp's `flet'. | |
e8693c96 GM |
915 | In particular, in cl-flet function definitions are lexically scoped, |
916 | whereas in flet the scoping is dynamic. | |
89660017 SM |
917 | |
918 | *** `cl-labels' is slightly different from `labels'. | |
823b2fb6 GM |
919 | The difference is that it relies on the `lexical-binding' machinery |
920 | (as opposed to the `lexical-let' machinery used previously) to capture | |
921 | definitions in closures, so such closures will only work if `lexical-binding' | |
922 | is in use. | |
89660017 | 923 | |
f94b04fc | 924 | *** `cl-letf' is not exactly like `letf'. |
4ddedf94 GM |
925 | The only difference is in details that relate to some deprecated usage |
926 | of `symbol-function' in place forms. | |
f94b04fc | 927 | |
89660017 | 928 | *** `progv' was rewritten to use the `let' machinery. |
823b2fb6 GM |
929 | A side effect is that variables without corresponding values are bound |
930 | to nil rather than being made unbound. | |
89660017 | 931 | |
9512f820 GM |
932 | *** The following methods of extending `setf' are obsolete |
933 | (use features from gv.el instead): | |
934 | `define-modify-macro' (use `gv-letplace') | |
031b2ea7 GM |
935 | `defsetf' (use `gv-define-simple-setter' or `gv-define-setter') |
936 | `define-setf-expander' (use `gv-define-setter' or `gv-define-expander') | |
2b4da3ff | 937 | `get-setf-method' no longer exists (see "Incompatible Lisp Changes") |
f94b04fc | 938 | |
6bc66c10 | 939 | ** Diff mode |
f938eda9 | 940 | |
6bc66c10 GM |
941 | *** Changes are now highlighted using the same color scheme as in |
942 | modern VCSes. Deletions are displayed in red (new faces | |
943 | `diff-refine-removed' and `smerge-refined-removed', and new definition | |
944 | of `diff-removed'), insertions in green (new faces `diff-refine-added' | |
945 | and `smerge-refined-added', and new definition of `diff-added'). | |
f938eda9 | 946 | |
6bc66c10 GM |
947 | *** The variable `diff-use-changed-face' defines whether to use the |
948 | face `diff-changed', or `diff-removed' and `diff-added' to highlight | |
949 | changes in context diffs. | |
2f940384 | 950 | |
6bc66c10 GM |
951 | *** The new command `diff-delete-trailing-whitespace' removes trailing |
952 | whitespace introduced by a diff. | |
f938eda9 | 953 | |
6bc66c10 GM |
954 | ** Ediff now uses the same color scheme as Diff mode. |
955 | ||
956 | ** Python mode | |
957 | ||
958 | A new version of python.el, which provides several new features, including: | |
959 | per-buffer shells, better indentation, Python 3 support, and improved | |
960 | shell-interaction compatible with iPython (and virtually any other | |
961 | text based shell). | |
962 | ||
963 | *** Some user options have been replaced/renamed, including (old -> new): | |
964 | **** python-indent -> python-indent-offset | |
965 | **** python-guess-indent -> python-indent-guess-indent-offset | |
966 | **** python-pdbtrack-do-tracking-p -> python-pdbtrack-activate | |
967 | **** python-use-skeletons -> python-skeleton-autoinsert | |
968 | ||
969 | *** Some user options have been removed, including: | |
970 | ||
971 | **** `python-indent-string-contents': Strings are never indented. | |
972 | ||
973 | **** `python-honour-comment-indentation': | |
d5b1b1aa | 974 | Comments are always considered as indentation markers. |
6bc66c10 GM |
975 | |
976 | **** `python-continuation-offset': Indentation is automatically | |
977 | calculated in a pep8 compliant way depending on the context. | |
978 | ||
979 | **** `python-shell-prompt-alist', `python-shell-continuation-prompt-alist': | |
980 | Have no direct mapping as the shell interaction is completely different. | |
981 | ||
982 | **** `python-python-command', `python-jython-command': | |
983 | Replaced by `python-shell-interpreter'. | |
984 | ||
985 | **** `inferior-python-filter-regexp', `python-remove-cwd-from-path', | |
986 | `python-pdbtrack-minor-mode-string', `python-source-modes': | |
987 | No longer relevant. | |
988 | ||
989 | *** Some commands have been replaced (old -> new): | |
990 | **** python-insert-class -> python-skeleton-class | |
991 | **** python-insert-def -> python-skeleton-def | |
992 | **** python-insert-for -> python-skeleton-for | |
993 | **** python-insert-if -> python-skeleton-if | |
994 | **** python-insert-try/except -> python-skeleton-try | |
995 | **** python-insert-try/finally -> python-skeleton-try | |
996 | **** python-insert-while -> python-skeleton-while | |
997 | **** python-find-function -> python-nav-jump-to-defun | |
998 | **** python-next-statement -> python-nav-forward-sentence | |
999 | **** python-previous-statement -> python-nav-backward-sentence | |
1000 | **** python-beginning-of-defun-function -> python-nav-beginning-of-defun | |
1001 | **** python-end-of-defun-function -> python-nav-end-of-defun | |
1002 | **** python-send-buffer -> python-shell-send-buffer | |
1003 | **** python-send-defun -> python-shell-send-defun | |
1004 | **** python-send-region -> python-shell-send-region | |
1005 | **** python-send-region-and-go -> emulate with python-shell-send-region | |
1006 | and python-shell-switch-to-shell | |
1007 | **** python-send-string -> python-shell-send-string | |
1008 | **** python-switch-to-python -> python-shell-switch-to-shell | |
1009 | **** python-describe-symbol -> python-eldoc-at-point | |
e76f0800 | 1010 | |
f938eda9 CY |
1011 | ** D-Bus |
1012 | ||
f938eda9 CY |
1013 | *** New variables `dbus-compiled-version' and `dbus-runtime-version'. |
1014 | ||
f938eda9 CY |
1015 | *** The D-Bus object manager interface is implemented. |
1016 | ||
f938eda9 CY |
1017 | *** Variables of type :(u)int32 and :(u)int64 accept floating points, |
1018 | if their value does not fit into Emacs's integer range. | |
1019 | ||
823b2fb6 GM |
1020 | *** The function `dbus-call-method' is now non-blocking. |
1021 | It can be interrupted by `C-g'. `dbus-call-method-non-blocking' is obsolete. | |
f938eda9 | 1022 | |
823b2fb6 | 1023 | *** Signals can also be sent as unicast messages. |
f938eda9 | 1024 | |
f938eda9 | 1025 | *** The argument list of `dbus-register-signal' has been extended, |
6bc66c10 | 1026 | according to the new match rule types of D-Bus. |
f938eda9 | 1027 | |
f938eda9 CY |
1028 | *** `dbus-init-bus' supports private connections. |
1029 | ||
f938eda9 CY |
1030 | *** There is a new function `dbus-setenv'. |
1031 | ||
6bc66c10 GM |
1032 | ** `desktop-path' no longer includes the "." directory. |
1033 | Desktop files are now located in ~/.emacs.d by default. | |
f938eda9 CY |
1034 | |
1035 | ** Dired | |
2f940384 | 1036 | |
f938eda9 CY |
1037 | *** `dired-do-async-shell-command' executes each file sequentially |
1038 | if the command ends in `;' (when operating on multiple files). | |
1039 | Otherwise, it executes the command on each file in parallel. | |
2f940384 | 1040 | |
823b2fb6 GM |
1041 | *** Typing `M-n' in the minibuffer of `dired-do-chmod', `dired-do-chgrp', |
1042 | `dired-do-chown', and `dired-do-touch' yanks the attributes of the | |
f938eda9 | 1043 | file at point. |
2f940384 | 1044 | |
f938eda9 | 1045 | *** When the region is active, `m' (`dired-mark'), `u' (`dired-unmark'), |
823b2fb6 | 1046 | `DEL' (`dired-unmark-backward'), and `d' (`dired-flag-file-deletion') |
f938eda9 | 1047 | mark/unmark/flag all files in the active region. |
2f940384 | 1048 | |
f938eda9 CY |
1049 | *** The minibuffer default for `=' (`dired-diff) has changed. |
1050 | It is now the backup file for the file at point, if one exists. | |
1051 | In Transient Mark mode the default is the file at the active mark. | |
2f940384 | 1052 | |
f938eda9 CY |
1053 | *** `M-=' is no longer bound to `dired-backup-diff' in Dired buffers. |
1054 | The global binding for `M-=', `count-words-region' is in effect. | |
1055 | ||
02969baf GM |
1056 | ** ERC |
1057 | ||
6e5e9b70 GM |
1058 | *** New module "notifications", which can send a notification when you |
1059 | receive a private message or your nickname is mentioned. | |
02969baf GM |
1060 | |
1061 | *** ERC will look up server/channel names via auth-source and use any | |
1062 | channel keys found. | |
f938eda9 | 1063 | |
274f5de6 GM |
1064 | *** New option `erc-lurker-hide-list', similar to `erc-hide-list', but |
1065 | only applies to messages sent by lurkers. | |
f925b109 | 1066 | |
6bc66c10 | 1067 | ** reStructuredText mode |
f938eda9 | 1068 | |
6bc66c10 GM |
1069 | *** Keybindings (see `C-c C-h'), TAB indentation, filling and auto-filling, |
1070 | fontification, comment handling, and customization have all been revised | |
1071 | and improved. | |
f938eda9 | 1072 | |
6bc66c10 | 1073 | *** Support for `imenu' and `which-function-mode'. |
f938eda9 | 1074 | |
6bc66c10 GM |
1075 | *** The reStructuredText syntax is more closely covered. |
1076 | Sphinx support has been improved. | |
f938eda9 | 1077 | |
6bc66c10 | 1078 | *** `rst-insert-list' inserts new list or continues existing lists. |
f938eda9 | 1079 | |
6bc66c10 | 1080 | *** A negative prefix argument always works for `rst-adjust'. |
f938eda9 | 1081 | |
6bc66c10 | 1082 | *** The window configuration is reset after displaying a TOC. |
bc7be45d | 1083 | |
6bc66c10 | 1084 | *** The constant `rst-version' describes the rst.el package version. |
358c19d9 | 1085 | |
dba3cda3 GM |
1086 | ** Ruby mode |
1087 | ||
1088 | *** Support for percent literals and recognition of regular expressions | |
1089 | in method calls without parentheses with more methods, including Cucumber | |
1090 | steps definitions. | |
1091 | ||
1092 | *** Improved syntax highlighting and indentation. | |
1093 | ||
1094 | *** New command `ruby-toggle-block', bound to `C-c {'. | |
1095 | ||
1096 | *** Some non-standard keybindings/commands have been removed: | |
1097 | ||
1098 | **** `ruby-electric-brace'; use `electric-indent-mode' instead. | |
1099 | ||
1100 | **** `ruby-mark-defun'; use `mark-defun'. | |
1101 | ||
1102 | **** `ruby-beginning-of-defun' and `ruby-end-of-defun' are replaced by | |
1103 | appropriate settings for the variables `beginning-of-defun-function' | |
1104 | and `end-of-defun-function'. | |
1105 | ||
1106 | **** Non-standard keybindings for `backward-kill-word', `comment-region', | |
1107 | `reindent-then-newline-and-indent' and `newline' have been removed. | |
1108 | ||
6bc66c10 | 1109 | ** Shell Script mode |
40d8bcb8 | 1110 | |
6bc66c10 | 1111 | *** Pairing of parens/quotes uses `electric-pair-mode' instead of skeleton-pair. |
40d8bcb8 | 1112 | |
6bc66c10 | 1113 | *** `sh-electric-here-document-mode' now controls auto-insertion of here-docs. |
40d8bcb8 | 1114 | |
6bc66c10 | 1115 | *** `sh-use-smie' lets you choose a new indentation and navigation code. |
40d8bcb8 | 1116 | |
6bc66c10 | 1117 | ** VHDL mode |
40d8bcb8 | 1118 | |
6bc66c10 | 1119 | *** The free software compiler GHDL is supported (and now the default). |
40d8bcb8 | 1120 | |
6bc66c10 | 1121 | *** Support for the VHDL-AMS packages has been added/updated. |
40d8bcb8 | 1122 | |
6bc66c10 | 1123 | *** Updated to the 2002 revision of the VHDL standard. |
40d8bcb8 | 1124 | |
6bc66c10 | 1125 | *** Accepts \r and \f as whitespace. |
40d8bcb8 | 1126 | |
6bc66c10 | 1127 | ** Apropos |
40d8bcb8 | 1128 | |
6bc66c10 GM |
1129 | *** The faces used by Apropos are now directly customizable. |
1130 | These faces are named `apropos-symbol', `apropos-keybinding', and so on; | |
1131 | see the `apropos' Custom group for details. | |
d13c8be6 | 1132 | |
6bc66c10 GM |
1133 | *** The old options whose values specified faces to use have been removed |
1134 | (i.e. `apropos-symbol-face', `apropos-keybinding-face', etc.). | |
d13c8be6 | 1135 | |
6bc66c10 | 1136 | ** Buffer Menu |
d13c8be6 | 1137 | |
6bc66c10 | 1138 | *** This package has been rewritten to use Tabulated List mode. |
d13c8be6 | 1139 | |
6bc66c10 GM |
1140 | *** Option `Buffer-menu-buffer+size-width' is now obsolete. |
1141 | Use `Buffer-menu-name-width' and `Buffer-menu-size-width' instead. | |
d13c8be6 | 1142 | |
86e100a6 GM |
1143 | ** Calc |
1144 | ||
1145 | *** Algebraic simplification mode is now the default. | |
1146 | To restrict to the limited simplifications given by the former | |
1147 | default simplification mode, use `m I'. | |
1148 | ||
6bc66c10 | 1149 | ** Calendar |
d13c8be6 | 1150 | |
6bc66c10 GM |
1151 | *** You can customize the header text that appears above each calendar month. |
1152 | See the variable `calendar-month-header'. | |
d13c8be6 | 1153 | |
6bc66c10 | 1154 | *** New LaTeX calendar style, produced by `cal-tex-cursor-week2-summary'. |
ee97deee | 1155 | |
6bc66c10 GM |
1156 | *** The calendars produced by cal-html include holidays. |
1157 | Customize `cal-html-holidays' to change this. | |
8b0823d6 | 1158 | |
0058cae2 GM |
1159 | ** CEDET |
1160 | ||
1161 | *** The major modes from the parser generators "Bovine" and "Wisent" | |
1162 | are now properly integrated in Emacs. The file suffixes ".by" and ".wy" | |
1163 | are in `auto-mode-alist', and the corresponding manuals are included. | |
1164 | ||
1165 | *** EDE | |
1166 | ||
1167 | **** Menu support for the "Configuration" feature. This allows users to | |
1168 | choose the active configuration (such as debug or install) from the menu. | |
1169 | ||
1170 | **** New command `ede-set' to interactively set project-local variables. | |
1171 | ||
1172 | **** Support for compiling, debugging, and running in "generic" projects. | |
1173 | ||
1174 | **** Autoconf editing support for M4 macros with complex arguments. | |
1175 | ||
1176 | **** Compilation support for the "linux" project type. | |
1177 | ||
1178 | **** "simple" projects have been removed; use "generic" projects instead. | |
1179 | ||
1180 | *** Semantic | |
1181 | ||
1182 | **** Support for parsing #include statements inside a namespace in C/C++. | |
1183 | ||
1184 | **** Improved support for 'extern "C"' declarations in C/C++. | |
1185 | ||
1186 | **** The ability to ignore more common special C/C++ preprocessor symbols, | |
1187 | such as '__nonnull' and '__asm'. Add '__cplusplus' macro when parsing C++. | |
1188 | If available, include cdefs.h as an additional source of preprocessor symbols. | |
1189 | ||
1190 | **** Improved C/C++ function pointer parsing. | |
1191 | ||
1192 | **** In Python, support for converting imports to include file names. | |
1193 | ||
1194 | **** Ability to dynamically determine the Python load path. | |
1195 | ||
1196 | **** Support for the Python 'WITH' and 'AT' keywords. | |
1197 | ||
1198 | **** Improved tooltip completion. | |
1199 | ||
1200 | *** SRecode | |
1201 | ||
1202 | **** The SRecode manual is now included. | |
1203 | ||
1204 | **** Tag generation supports constructor/destructor settings and system | |
1205 | include differentiation. | |
1206 | ||
1207 | **** Addition of 'Framework' support: Frameworks are specified when a | |
1208 | particular kind of library (such as Android) is needed in a common language | |
1209 | mode (like Java). | |
1210 | ||
1211 | **** Support for nested templates and let variables override based on priority. | |
1212 | ||
1213 | **** Support for merging tables from multiple related modes, such as | |
1214 | default -> c++ -> arduino. | |
1215 | ||
6bc66c10 | 1216 | ** Compile has a new option `compilation-always-kill'. |
42917e79 | 1217 | |
6bc66c10 | 1218 | ** Customize |
35d98877 | 1219 | |
6bc66c10 | 1220 | *** `custom-reset-button-menu' now defaults to t. |
35d98877 | 1221 | |
6bc66c10 GM |
1222 | *** Non-option variables are never matched in `customize-apropos' and |
1223 | `customize-apropos-options' (i.e., the prefix argument does nothing for | |
1224 | these commands now). | |
782fbf2a | 1225 | |
f938eda9 | 1226 | ** Term |
782fbf2a | 1227 | |
823b2fb6 GM |
1228 | *** The variables `term-default-fg-color' and `term-default-bg-color' |
1229 | are now deprecated in favor of the customizable face `term'. | |
fc72b15c | 1230 | |
02969baf GM |
1231 | *** You can customize how to display ANSI terminal colors and styles |
1232 | by customizing the corresponding `term-color-<COLOR>', | |
1233 | `term-color-underline' and `term-color-bold' faces. | |
cf20dee0 | 1234 | |
05ecb497 | 1235 | ** Tramp |
2f940384 | 1236 | |
02969baf | 1237 | *** The syntax has been extended in order to allow ad-hoc proxy definitions. |
05ecb497 | 1238 | |
823b2fb6 | 1239 | *** Remote processes are now also supported on remote MS-Windows hosts. |
05ecb497 | 1240 | |
ce7b18ec | 1241 | ** URL |
2f940384 | 1242 | |
ce7b18ec CY |
1243 | *** Structs made by `url-generic-parse-url' have nil `attributes' slot. |
1244 | Previously, this slot stored semicolon-separated attribute-value pairs | |
1245 | appended to some imap URLs, but this is not compatible with RFC 3986. | |
823b2fb6 | 1246 | So now the `filename' slot stores the entire path and query components, |
ce7b18ec | 1247 | and the `attributes' slot is always nil. |
2f940384 | 1248 | |
ce7b18ec CY |
1249 | *** New function `url-encode-url' for encoding a URI string. |
1250 | The `url-retrieve' function now uses this to encode its URL argument, | |
1251 | in case that is not properly encoded. | |
1252 | ||
843571cb LMI |
1253 | *** New command `url-cookie-list' displays all the current cookies, and |
1254 | allows deleting selected cookies. | |
1255 | ||
6bc66c10 GM |
1256 | ** notifications.el supports now version 1.2 of the Notifications API. |
1257 | The function `notifications-get-capabilities' returns the supported | |
1258 | server properties. | |
f938eda9 | 1259 | |
6bc66c10 GM |
1260 | ** Flymake uses fringe bitmaps to indicate errors and warnings. |
1261 | See `flymake-fringe-indicator-position', `flymake-error-bitmap' and | |
1262 | `flymake-warning-bitmap'. | |
f938eda9 | 1263 | |
6bc66c10 GM |
1264 | ** The FFAP option `ffap-url-unwrap-remote' can now be a list of strings, |
1265 | specifying URL types that should be converted to remote file names at | |
1266 | the FFAP prompt. The default is now '("ftp"). | |
f938eda9 | 1267 | |
6bc66c10 GM |
1268 | ** New Ibuffer `derived-mode' filter, bound to `/ M'. |
1269 | The old binding for `/ M' (filter by used-mode) is now bound to `/ m'. | |
f938eda9 | 1270 | |
6bc66c10 GM |
1271 | ** New option `mouse-avoidance-banish-position' specifies where the |
1272 | `banish' mouse avoidance setting moves the mouse. | |
ce7b18ec | 1273 | |
6bc66c10 GM |
1274 | ** In Perl mode, new option `perl-indent-parens-as-block' causes non-block |
1275 | closing brackets to be aligned with the line of the opening bracket. | |
f938eda9 | 1276 | |
6bc66c10 | 1277 | ** In Proced mode, new command `proced-renice' renices marked processes. |
f938eda9 | 1278 | |
6bc66c10 GM |
1279 | ** New option `async-shell-command-buffer' specifies the buffer to use |
1280 | for a new asynchronous `shell-command' when the default output buffer | |
1281 | `*Async Shell Command*' is already in use. | |
f938eda9 | 1282 | |
6bc66c10 GM |
1283 | ** SQL mode has a new option `sql-db2-escape-newlines'. |
1284 | If non-nil, newlines sent to the command interpreter will be escaped | |
1285 | by a backslash. The default does not escape the newlines and assumes | |
1286 | that the sql statement will be terminated by a semicolon. | |
f938eda9 | 1287 | |
6bc66c10 GM |
1288 | ** New command `tabulated-list-sort', bound to `S' in Tabulated List mode |
1289 | (and modes that derive from it), sorts the column at point, or the Nth | |
1290 | column if a numeric prefix argument is given. | |
f938eda9 | 1291 | |
02969baf | 1292 | ** `which-func-modes' now defaults to t, so Which Function mode, when |
05b621a6 | 1293 | enabled, applies to all applicable major modes. |
f938eda9 | 1294 | |
6bc66c10 | 1295 | ** `winner-mode-hook' now runs when the mode is disabled, as well as when |
823b2fb6 | 1296 | it is enabled. |
f938eda9 | 1297 | |
6bc66c10 GM |
1298 | ** Follow mode no longer works by using advice. |
1299 | The option `follow-intercept-processes' has been removed. | |
1300 | ||
1301 | ** `javascript-generic-mode' is now an obsolete alias for `js-mode'. | |
f938eda9 | 1302 | |
d1069532 SM |
1303 | ** Hooks renamed to avoid obsolete "-hooks" suffix: |
1304 | *** semantic-lex-reset-hooks -> semantic-lex-reset-functions | |
1305 | *** semantic-change-hooks -> semantic-change-functions | |
1306 | *** semantic-edits-new-change-hooks -> semantic-edits-new-change-functions | |
1307 | *** semantic-edits-delete-change-hooks -> semantic-edits-delete-change-functions | |
1308 | *** semantic-edits-reparse-change-hooks -> semantic-edits-reparse-change-functions | |
1309 | *** semanticdb-save-database-hooks -> semanticdb-save-database-functions | |
1310 | *** c-prepare-bug-report-hooks -> c-prepare-bug-report-hook | |
1311 | *** rcirc-sentinel-hooks -> rcirc-sentinel-functions | |
1312 | *** rcirc-receive-message-hooks -> rcirc-receive-message-functions | |
1313 | *** rcirc-activity-hooks -> rcirc-activity-functions | |
1314 | *** rcirc-print-hooks -> rcirc-print-functions | |
1315 | *** dbus-event-error-hooks -> dbus-event-error-functions | |
1316 | *** eieio-pre-method-execution-hooks -> eieio-pre-method-execution-functions | |
1317 | *** checkdoc-style-hooks -> checkdoc-style-functions | |
1318 | *** checkdoc-comment-style-hooks -> checkdoc-comment-style-functions | |
1319 | *** archive-extract-hooks -> archive-extract-hook | |
1320 | *** filesets-cache-fill-content-hooks -> filesets-cache-fill-content-hook | |
1321 | *** hfy-post-html-hooks -> hfy-post-html-hook | |
1322 | *** nndiary-request-create-group-hooks -> nndiary-request-create-group-functions | |
1323 | *** nndiary-request-update-info-hooks -> nndiary-request-update-info-functions | |
1324 | *** nndiary-request-accept-article-hooks -> nndiary-request-accept-article-functions | |
1325 | *** gnus-subscribe-newsgroup-hooks -> gnus-subscribe-newsgroup-functions | |
f938eda9 | 1326 | |
6bc66c10 | 1327 | ** Obsolete packages |
2f940384 | 1328 | |
797e6e88 SM |
1329 | *** assoc.el |
1330 | In most cases, assoc+member+push+delq work just as well. | |
1331 | And in any case it's just a terrible package: ugly semantics, terrible | |
1332 | inefficiency, and not namespace-clean. | |
3c74813a | 1333 | *** bruce.el |
b4617547 | 1334 | *** cust-print.el |
daed4003 | 1335 | *** ledit.el |
82f289a4 | 1336 | *** mailpost.el |
d57de7fe | 1337 | *** mouse-sel.el |
3c74813a | 1338 | *** patcomp.el |
1a9c6830 | 1339 | |
a1ed8b05 | 1340 | \f |
2a1e2476 | 1341 | * Incompatible Lisp Changes in Emacs 24.3 |
b4d3bc10 | 1342 | |
6bc66c10 GM |
1343 | ** Docstrings starting with `*' no longer indicate user options. |
1344 | Only variables defined using `defcustom' are considered user options. | |
1345 | The function `user-variable-p' is now an obsolete alias for | |
1346 | `custom-variable-p'. | |
090cf9db | 1347 | |
6bc66c10 GM |
1348 | ** The return values of `defalias', `defun' and `defmacro' have changed, |
1349 | and are now undefined. For backwards compatibility, `defun' and | |
1350 | `defmacro' currently return the name of the newly defined | |
1351 | function/macro, but this should not be relied upon. | |
090cf9db | 1352 | |
823b2fb6 GM |
1353 | ** `random' by default now returns a different random sequence in |
1354 | every Emacs run. Use `(random S)', where S is a string, to set the | |
0e23ef9d PE |
1355 | random seed to a value based on S, in order to get a repeatable |
1356 | sequence in later calls. | |
1357 | ||
d32e47af LM |
1358 | ** If the NEWTEXT arg to `replace-match' contains a substring "\?", |
1359 | that substring is inserted literally even if the LITERAL arg is | |
1360 | non-nil, instead of causing an error to be signaled. | |
1361 | ||
2cec368c MR |
1362 | ** `select-window' now always makes the window's buffer current. |
1363 | It does so even if the window was selected before. | |
1364 | ||
6bc66c10 GM |
1365 | ** The function `x-select-font' can return a font spec, instead of a |
1366 | font name as a string. Whether it returns a font spec or a font name | |
1367 | depends on the graphical library. | |
bbf908bc | 1368 | |
eeddc531 CY |
1369 | ** `face-spec-set' no longer sets frame-specific attributes when the |
1370 | third argument is a frame (that usage was obsolete since Emacs 22.2). | |
1371 | ||
6bc66c10 | 1372 | ** `set-buffer-multibyte' now signals an error in narrowed buffers. |
a59d531e | 1373 | |
ab7f1c43 GM |
1374 | ** The CL package's `get-setf-method' function no longer exists. |
1375 | Generalized variables are now part of core Emacs Lisp, and implemented | |
1376 | differently to the way cl.el used to do it. It is not possible to | |
1377 | define a compatible replacement for `get-setf-method'. See the file | |
1378 | gv.el for internal details of the new implementation. | |
1379 | ||
6bc66c10 GM |
1380 | ** The arguments of `dbus-register-signal' are no longer just strings, |
1381 | but keywords or keyword-string pairs. The old argument list will | |
1382 | still be supported for Emacs 24.x. | |
72b255c7 | 1383 | |
6bc66c10 | 1384 | ** Miscellaneous name changes |
823b2fb6 GM |
1385 | Some Lisp symbols have been renamed to correct their spelling, |
1386 | or to be more consistent with standard Emacs terminology. | |
72b255c7 | 1387 | |
72b255c7 | 1388 | *** Renamed functions |
72b255c7 PE |
1389 | **** hangul-input-method-inactivate -> hangul-input-method-deactivate |
1390 | **** inactivate-input-method -> deactivate-input-method | |
1391 | **** quail-inactivate -> quail-deactivate | |
1392 | **** robin-inactivate -> robin-deactivate | |
1393 | **** viper-inactivate-input-method -> viper-deactivate-input-method | |
1394 | **** viper-inactivate-input-method-action -> | |
1395 | viper-deactivate-input-method-action | |
1396 | **** ucs-input-inactivate -> ucs-input-deactivate | |
1397 | ||
1398 | *** Renamed hooks | |
1399 | The old hooks are still supported for backward compatibility, but they | |
1400 | are deprecated and will be removed eventually. | |
72b255c7 PE |
1401 | **** input-method-inactivate-hook -> input-method-deactivate-hook |
1402 | **** robin-inactivate-hook -> robin-deactivate-hook | |
1403 | **** quail-inactivate-hook -> quail-deactivate-hook | |
1404 | ||
6bc66c10 | 1405 | *** Renamed variables |
72b255c7 PE |
1406 | **** follow-deactive-menu -> follow-inactive-menu |
1407 | **** inactivate-current-input-method-function -> | |
1408 | deactivate-current-input-method-function | |
1409 | ||
02969baf GM |
1410 | ** Some obsolete functions, variables, and faces have been removed: |
1411 | *** `last-input-char', `last-command-char', `unread-command-char' | |
78f3273a CY |
1412 | *** `facemenu-unlisted-faces' |
1413 | *** `rmail-decode-mime-charset' | |
a5f2b6ec CY |
1414 | *** `iswitchb-read-buffer' |
1415 | *** `sc-version', `sc-submit-bug-report' | |
1416 | *** `set-char-table-default' | |
02969baf | 1417 | *** `string-to-sequence' (use `string-to-list' or `string-to-vector') |
a5f2b6ec | 1418 | *** `compile-internal' |
02969baf | 1419 | *** `modeline' |
59f7af81 | 1420 | *** `mode-line-inverse-video' |
02969baf | 1421 | *** `follow-mode-off-hook' |
a5f2b6ec | 1422 | *** `cvs-commit-buffer-require-final-newline' |
63820c5c | 1423 | (use `log-edit-require-final-newline' instead) |
a5f2b6ec CY |
1424 | *** `cvs-changelog-full-paragraphs' |
1425 | (use `log-edit-changelog-full-paragraphs' instead) | |
1426 | *** `cvs-diff-ignore-marks', `cvs-diff-buffer-name' | |
1427 | *** `vc-ignore-vc-files' (use `vc-handled-backends' instead) | |
1428 | *** `vc-master-templates' (use `vc-handled-backends' instead) | |
1429 | *** `vc-checkout-carefully' | |
78f3273a | 1430 | |
a1ed8b05 | 1431 | \f |
93e0bed6 | 1432 | * Lisp Changes in Emacs 24.3 |
ef24141c | 1433 | |
2ee3d7f0 | 1434 | ** CL-style generalized variables are now in core Elisp. |
f938eda9 | 1435 | `setf' is autoloaded; `push' and `pop' accept generalized variables. |
ebdbfb95 GM |
1436 | You can define your own generalized variables using `gv-define-simple-setter', |
1437 | `gv-define-setter', etc. | |
2ee3d7f0 | 1438 | |
6bc66c10 GM |
1439 | ** Emacs tries to macroexpand interpreted (non-compiled) files during load. |
1440 | This can significantly speed up execution of non-byte-compiled code, | |
1441 | but can also bump into previously unnoticed cyclic dependencies. | |
1442 | These are generally harmless: they will simply cause the macro calls | |
1443 | to be left for later expansion (as before), but will result in a | |
1444 | warning ("Eager macro-expansion skipped due to cycle") describing the cycle. | |
1445 | You may wish to restructure your code so this does not happen. | |
1446 | ||
1447 | ** New sampling-based Elisp profiler. | |
1448 | Try M-x profiler-start, do some work, and then call M-x profiler-report. | |
1449 | When finished, use M-x profiler-stop. The sampling rate can be based on | |
1450 | CPU time or memory allocations. | |
1451 | ||
500fcedc SM |
1452 | ** `defun' also accepts a (declare DECLS) form, like `defmacro'. |
1453 | The interpretation of the DECLS is determined by `defun-declarations-alist'. | |
1454 | ||
6bc66c10 GM |
1455 | ** New macros `setq-local' and `defvar-local'. |
1456 | ||
1457 | ** Face underlining can now use a wave. | |
2f940384 | 1458 | |
6bc66c10 | 1459 | ** `read-regexp' has a new argument HISTORY; the first argument PROMPT |
cd996018 | 1460 | of `read-regexp' accepts a string ending with a colon and space, and its |
823b2fb6 | 1461 | second argument DEFAULTS can be a list of strings accessible via `M-n' |
cd996018 CY |
1462 | in the minibuffer ahead of other hard-coded useful regexp-related values. |
1463 | More commands use `read-regexp' now to read their regexp arguments. | |
1464 | ||
f938eda9 | 1465 | ** Completion |
500fcedc | 1466 | |
f938eda9 CY |
1467 | *** New function `completion-table-with-quoting' to handle completion |
1468 | in the presence of quoting, such as file completion in shell buffers. | |
f95e9344 | 1469 | |
f938eda9 CY |
1470 | *** New function `completion-table-subvert' to use an existing completion |
1471 | table, but with a different prefix. | |
1472 | ||
6bc66c10 | 1473 | ** Debugger |
f95e9344 | 1474 | |
f938eda9 CY |
1475 | *** New error type and new function `user-error'. |
1476 | These do not trigger the debugger. | |
f95e9344 | 1477 | |
57fc0fee GM |
1478 | *** New option `debugger-bury-or-kill', saying what to do with the |
1479 | debugger buffer when exiting debug. | |
45b82ad0 SM |
1480 | |
1481 | *** Set `debug-on-message' to enter the debugger when a certain | |
1482 | message is displayed in the echo area. This can be useful when trying | |
1483 | to work out which code is doing something. | |
2f940384 | 1484 | |
45b82ad0 SM |
1485 | *** New var `inhibit-debugger', automatically set to prevent accidental |
1486 | recursive invocations. | |
fa2bcf43 | 1487 | |
6bc66c10 | 1488 | ** Window handling |
2f940384 | 1489 | |
6bc66c10 GM |
1490 | *** New command `fit-frame-to-buffer' adjusts the frame height to |
1491 | fit the contents. | |
2f940384 | 1492 | |
6bc66c10 GM |
1493 | *** The command `fit-window-to-buffer' can adjust the frame height |
1494 | if the new option `fit-frame-to-buffer' is non-nil. | |
8e17c9ba | 1495 | |
7fe37cfc GM |
1496 | *** New macro `with-temp-buffer-window', similar to |
1497 | `with-output-to-temp-buffer'. | |
fa2bcf43 | 1498 | |
8e17c9ba MR |
1499 | *** `temp-buffer-resize-mode' no longer resizes windows that have been |
1500 | reused. | |
c5e28e39 | 1501 | |
823b2fb6 | 1502 | *** New option `switch-to-buffer-preserve-window-point' to restore a |
43bcfda6 | 1503 | window's point when switching buffers. |
7c82753d | 1504 | |
6bc66c10 GM |
1505 | *** New display action alist entries `window-height' and `window-width' |
1506 | specify the size of new windows created by `display-buffer'. | |
1507 | ||
1508 | *** New display action alist entry `pop-up-frame-parameters', if | |
1509 | non-nil, specifies frame parameters to give any newly-created frame. | |
7c82753d | 1510 | |
fa2bcf43 MR |
1511 | *** New display action alist entry `inhibit-switch-frame', if non-nil, |
1512 | tells display action functions to avoid changing which frame is | |
1513 | selected. | |
2f940384 | 1514 | |
fa2bcf43 MR |
1515 | *** New display action alist entry `previous-window', if non-nil, |
1516 | specifies window to reuse in `display-buffer-in-previous-window'. | |
2f940384 | 1517 | |
6bc66c10 GM |
1518 | *** New display action functions `display-buffer-below-selected', |
1519 | and `display-buffer-in-previous-window'. | |
1520 | ||
1521 | *** The functions `get-lru-window', `get-mru-window' and `get-largest-window' | |
1522 | now accept a third argument to avoid choosing the selected window. | |
1523 | ||
1524 | *** Additional values recognized for option `window-combination-limit'. | |
5938d519 | 1525 | |
77f1f99c CY |
1526 | *** The following variables are obsolete, as they can be replaced by |
1527 | appropriate entries in the `display-buffer-alist' function introduced | |
1528 | in Emacs 24.1: | |
823b2fb6 | 1529 | **** `dired-shrink-to-fit' |
77f1f99c | 1530 | **** `display-buffer-reuse-frames' |
823b2fb6 | 1531 | **** `display-buffer-function' |
77f1f99c | 1532 | **** `special-display-buffer-names' |
823b2fb6 | 1533 | **** `special-display-frame-alist' |
77f1f99c | 1534 | **** `special-display-function' |
823b2fb6 | 1535 | **** `special-display-regexps' |
77f1f99c | 1536 | |
ab0fa4e4 | 1537 | ** Time |
2f940384 | 1538 | |
ab0fa4e4 PE |
1539 | *** `current-time-string' no longer requires that its argument's year |
1540 | must be in the range 1000..9999. It now works with any year supported | |
1541 | by the underlying C implementation. | |
2f940384 | 1542 | |
f938eda9 CY |
1543 | *** `current-time' now returns extended-format time stamps |
1544 | (HIGH LOW USEC PSEC), where the new PSEC slot specifies picoseconds. | |
1545 | PSEC is typically a multiple of 1000 on current machines. Other | |
823b2fb6 GM |
1546 | functions that use this format, such as `file-attributes' and |
1547 | `format-time-string', have been changed accordingly. Old-format time | |
f938eda9 | 1548 | stamps are still accepted. |
2f940384 | 1549 | |
823b2fb6 | 1550 | *** The format of timers in `timer-list' and `timer-idle-list' is now |
f938eda9 CY |
1551 | [TRIGGERED-P HI-SECS LO-SECS USECS REPEAT-DELAY FUNCTION ARGS IDLE-DELAY PSECS]. |
1552 | The PSECS slot is new, and uses picosecond resolution. It can be | |
823b2fb6 | 1553 | accessed via the new `timer--psecs' accessor. |
2f940384 | 1554 | |
c4132fd4 PE |
1555 | *** Last-modified time stamps in undo lists now are of the form |
1556 | (t HI-SECS LO-SECS USECS PSECS) instead of (t HI-SECS . LO-SECS). | |
1557 | ||
0058cae2 GM |
1558 | ** EIEIO |
1559 | ||
1560 | *** Improved security when handling persistent objects: | |
1561 | ||
1562 | **** `eieio-persistent-read' now features optional arguments for specifying | |
1563 | the class to load, as well as a flag stating whether subclasses are allowed; | |
1564 | if provided, other classes will be rejected by the reader. For | |
1565 | compatibility with existing code, if the class is omitted only a | |
1566 | warning is issued. | |
1567 | ||
1568 | **** New specialized reader for pulling in classes and signaling errors | |
1569 | without evaluation of suspicious code. | |
1570 | ||
1571 | **** All slots that contain objects must have a :type. Slots with lists | |
1572 | of objects must use a new type predicate for a list of an object type. | |
1573 | ||
1574 | *** Support for `find-function' and similar utilities, through the addition | |
1575 | of filename support to generated symbols. | |
1576 | ||
f938eda9 | 1577 | ** Floating point functions now always return special values like NaN, |
823b2fb6 | 1578 | instead of signaling errors, if given invalid args; e.g., (log -1.0). |
f938eda9 CY |
1579 | Previously, they returned NaNs on some platforms but signaled errors |
1580 | on others. The affected functions are acos, asin, tan, exp, expt, | |
1581 | log, log10, sqrt, and mod. | |
1582 | ||
6bc66c10 | 1583 | ** New fringe bitmap `exclamation-mark'. |
f938eda9 | 1584 | |
6bc66c10 GM |
1585 | ** Miscellaneous changes to special forms and macros |
1586 | ||
1587 | *** `defun' and `defmacro' are now macros rather than special forms. | |
1588 | ||
1589 | *** `kbd' is now a function rather than a macro. | |
1590 | ||
1591 | ** Miscellaneous new functions | |
1592 | ||
1593 | *** `set-temporary-overlay-map' sets up a temporary keymap that | |
1594 | takes precedence over most other maps for a short while (normally one key). | |
f938eda9 | 1595 | |
847a0561 | 1596 | *** `autoloadp' tests if its argument is an autoloaded object. |
2f940384 | 1597 | |
847a0561 | 1598 | *** `autoload-do-load' performs the autoloading operation. |
2f940384 | 1599 | |
f938eda9 | 1600 | *** `buffer-narrowed-p' tests if the buffer is narrowed. |
2f940384 | 1601 | |
f938eda9 | 1602 | *** `file-name-base' returns a file name sans directory and extension. |
2f940384 | 1603 | |
f938eda9 | 1604 | *** `function-get' fetches a function property, following aliases. |
c990426a | 1605 | |
f938eda9 | 1606 | *** `posnp' tests if an object is a `posn'. |
f938eda9 | 1607 | |
f938eda9 | 1608 | *** `system-users' returns the user names on the system. |
547d6865 | 1609 | |
f938eda9 | 1610 | *** `system-groups' returns the group names on the system. |
f938eda9 | 1611 | |
f938eda9 | 1612 | *** `tty-top-frame' returns the topmost frame of a text terminal. |
c990426a | 1613 | |
f938eda9 | 1614 | ** The following functions and variables are obsolete: |
847a0561 | 1615 | *** `automount-dir-prefix' (use `directory-abbrev-alist') |
f938eda9 | 1616 | *** `buffer-has-markers-at' |
1a9c6830 | 1617 | *** `macro-declaration-function' (use `macro-declarations-alist') |
847a0561 | 1618 | *** `window-system-version' (provides no useful information) |
93cacb6d | 1619 | *** `dired-pop-to-buffer' (use `dired-mark-pop-up') |
0e2ae83d | 1620 | *** `query-replace-interactive' |
49238e7f | 1621 | *** `font-list-limit' (has had no effect since Emacs < 23) |
86aa551c | 1622 | |
adce950d | 1623 | \f |
93e0bed6 | 1624 | * Changes in Emacs 24.3 on Non-Free Operating Systems |
9078ead6 | 1625 | |
4e98ad15 | 1626 | ** Cygwin builds can use the native MS Windows user interface. |
823b2fb6 | 1627 | Pass `--with-w32' to configure. The default remains the X11 interface. |
53a63be6 | 1628 | |
1a9c6830 | 1629 | ** Two new functions are available in Cygwin builds: |
6e9f7997 DC |
1630 | `cygwin-convert-file-name-from-windows' and |
1631 | `cygwin-convert-file-name-to-windows'. These functions allow Lisp | |
1632 | code to access the Cygwin file-name mapping machinery to convert | |
1633 | between Cygwin and Windows-native file and directory names. | |
de6e3a60 | 1634 | |
4e98ad15 | 1635 | ** When invoked with the -nw switch to run on the Windows text-mode terminal, |
1ab0c851 | 1636 | Emacs now supports `mouse-highlight', help-echo (in the echo area), and |
4e98ad15 GM |
1637 | `mouse-autoselect-window'. |
1638 | ||
1a9c6830 | 1639 | ** On MS Windows Vista and later Emacs now supports symbolic links. |
4e98ad15 | 1640 | |
823b2fb6 | 1641 | ** On MS Windows, you can pass `--without-libxml2' to configure.bat to omit |
4e98ad15 GM |
1642 | support for libxml2, even if its presence is detected. |
1643 | ||
4e98ad15 GM |
1644 | ** On Mac OS X, the Nextstep port requires OS X 10.4 or later. |
1645 | ||
823b2fb6 | 1646 | ** On Mac OS X, configure no longer automatically adds the Fink "/sw" |
4e98ad15 GM |
1647 | directories to the search path. You must add them yourself if you want them. |
1648 | ||
2a1e2476 GM |
1649 | \f |
1650 | * Changes in Emacs 24.2 | |
1651 | ||
5190da91 | 1652 | ** This is mainly a bug-fix release. |
6dad7178 | 1653 | |
9078ead6 | 1654 | \f |
eb199145 | 1655 | * Installation Changes in Emacs 24.1 |
09e18d03 | 1656 | |
31fd3586 GM |
1657 | ** Emacs can be compiled with Gtk+ 3.0 if you pass --with-x-toolkit=gtk3 |
1658 | to configure. Note that other libraries used by Emacs, RSVG and GConf, | |
1659 | also depend on Gtk+. You can disable them with --without-rsvg and | |
1660 | --without-gconf. | |
338648ad | 1661 | |
31fd3586 GM |
1662 | ** Emacs can be compiled with GnuTLS support. |
1663 | This happens by default if a suitably recent version of the library is | |
1664 | found at build time. To prevent this, use the configure option | |
1665 | `--without-gnutls'. See below for GnuTLS features. | |
338648ad | 1666 | |
31fd3586 GM |
1667 | ** Emacs can be compiled with SELinux support. |
1668 | This happens by default if a suitably recent version of the library is | |
1669 | found at build time. To prevent this, use the configure option | |
1670 | `--without-selinux'. See below for SELinux features. | |
aded53ff | 1671 | |
31fd3586 GM |
1672 | ** Emacs can be compiled with ImageMagick support. |
1673 | This happens by default if a suitably recent version of the library is | |
1674 | found at build time. To prevent this, use the configure option | |
1675 | `--without-imagemagick'. See below for ImageMagick features. | |
c1f10868 | 1676 | This feature is not available for the Nextstep or MS ports. |
d9170db5 | 1677 | |
043efd56 GM |
1678 | ** Emacs can be compiled with libxml2 support. |
1679 | This happens by default if a suitably recent version of the library is | |
1680 | found at build time. To prevent this, use the configure option | |
1681 | `--without-xml2'. See below for libxml2 features. | |
1682 | ||
7d301ae6 CY |
1683 | ** By default, the installed Info and man pages are compressed. |
1684 | You can disable this by configuring --without-compress-info. | |
1685 | ||
7d301ae6 | 1686 | ** New configure option --with-wide-int. |
81eafe29 | 1687 | With it, Emacs integers typically have 62 bits, even on 32-bit machines. |
0a768890 PE |
1688 | On 32-bit hosts, this raises the limit on buffer sizes from about 512 MiB |
1689 | to about 2 GiB. | |
81eafe29 | 1690 | |
7d301ae6 | 1691 | ** New configure options: --with-mmdf, --with-mail-unlink, --with-mailhost. |
31fd3586 GM |
1692 | These provide no new functionality, they just remove the need to edit |
1693 | lib-src/Makefile by hand in order to use the associated features. | |
1694 | ||
7d301ae6 | 1695 | ** New configure option --enable-use-lisp-union-type. |
31fd3586 GM |
1696 | This is only useful for Emacs developers to debug certain types of bugs. |
1697 | This is not a new feature; only the configure flag is new. | |
041d709f CY |
1698 | |
1699 | ** The standalone programs digest-doc and sorted-doc are removed. | |
1700 | Emacs now uses Lisp commands `doc-file-to-man' and `doc-file-to-info'. | |
1701 | ||
041d709f CY |
1702 | ** The standalone program `fakemail' is removed. |
1703 | If you need it, feedmail.el provides a superset of the functionality. | |
1704 | ||
0bfd685e | 1705 | \f |
eb199145 | 1706 | * Startup Changes in Emacs 24.1 |
4a263588 | 1707 | |
198a7a97 | 1708 | ** The --unibyte, --multibyte, --no-multibyte, and --no-unibyte |
adbf62ff GM |
1709 | command line arguments, and the EMACS_UNIBYTE environment variable, no |
1710 | longer have any effect. (They were declared obsolete in Emacs 23.) | |
198a7a97 | 1711 | |
66b7b0fe | 1712 | ** New command line option `--no-site-lisp' removes site-lisp directories |
1b5e5b0c GM |
1713 | from load-path. -Q now implies this. This option does not affect the |
1714 | EMACSLOADPATH environment variable (and hence has no effect for | |
c8d59ba3 | 1715 | Nextstep builds). |
66b7b0fe | 1716 | |
0bfd685e | 1717 | \f |
eb199145 | 1718 | * Changes in Emacs 24.1 |
7841339b | 1719 | |
a2a25d24 | 1720 | ** Completion |
fdeb32ec | 1721 | |
dfdb4cad CY |
1722 | *** Many packages now use the `completion-at-point' command, |
1723 | rather than implementing separate completion commands. | |
1724 | ||
de0bde62 | 1725 | *** `completion-at-point' now handles tags and semantic completion. |
dfdb4cad | 1726 | |
a2a25d24 SM |
1727 | *** Completion in a non-minibuffer now tries to detect the end of completion |
1728 | and pops down the *Completions* buffer accordingly. | |
dfdb4cad CY |
1729 | |
1730 | *** New option `completion-cycle-threshold' allows completion cycling. | |
1731 | ||
1732 | *** New option `completion-category-overrides' for overriding the | |
2c719188 | 1733 | default completion style in certain circumstances. |
dfdb4cad | 1734 | |
a2a25d24 | 1735 | *** New completion style `substring'. |
dfdb4cad CY |
1736 | |
1737 | *** Completion of buffer names uses `substring' completion by default. | |
1738 | ||
1739 | *** The option `widget-complete-field' has been removed. | |
620c53a6 | 1740 | |
6870aaef | 1741 | ** Mail changes |
dfdb4cad | 1742 | |
7d301ae6 CY |
1743 | *** The first time you try sending mail, Emacs asks for a mail method. |
1744 | This is implemented by a new default for `send-mail-function', which | |
1745 | is `sendmail-query-once'. This offers to use the smtpmail package, or | |
1746 | to use the old defaults relying on external mail facilities | |
1747 | (`sendmail-send-it' on GNU/Linux and other Unix-like systems, and | |
1748 | `mailclient-send-it' on Windows). | |
dfdb4cad | 1749 | |
e78e7e48 CY |
1750 | *** Typing `C-c m' in the buffer made by `M-x report-emacs-bug' |
1751 | transfers the report to your desktop's preferred mail client, if there | |
1752 | is one. This uses either the "xdg-email" utility, or Mac OS's "open" | |
1753 | command. | |
dfdb4cad | 1754 | |
7d301ae6 CY |
1755 | *** See Changes in Specialized Modes and Packages for SMTPmail changes |
1756 | and Mail mode changes | |
3f88cd72 | 1757 | |
041d709f | 1758 | ** Emacs server and client changes |
dfdb4cad | 1759 | |
7d301ae6 | 1760 | *** New option `server-port' specifies the port for TCP Emacs servers. |
dfdb4cad | 1761 | |
041d709f | 1762 | *** New emacsclient argument -q/--quiet suppresses some status messages. |
dfdb4cad | 1763 | |
7d301ae6 CY |
1764 | *** New emacsclient argument --frame-parameters specifies the frame |
1765 | parameters of any newly-created graphical frame. | |
dfdb4cad CY |
1766 | |
1767 | *** If emacsclient shuts down due to Emacs signaling an error, | |
1768 | its exit status is 1. | |
1769 | ||
041d709f CY |
1770 | *** New emacsclient argument --parent-id ID. |
1771 | This opens a client frame in parent X window ID, via XEmbed, similar | |
1772 | to the --parent-id argument to Emacs. | |
1773 | ||
d0ce9f8c MB |
1774 | ** Internationalization changes |
1775 | ||
d0ce9f8c | 1776 | *** Emacs now supports display and editing of bidirectional text. |
7d301ae6 CY |
1777 | Right-to-left (RTL) scripts, such as Arabic, Farsi, and Hebrew, are |
1778 | displayed in the correct visual order as expected by users of those | |
dfdb4cad CY |
1779 | scripts. The display reordering is a "full bidirectionality" class |
1780 | implementation of the Unicode Bidirectional Algorithm (UBA). Buffers | |
1781 | with no RTL text should look exactly the same as before. | |
f4b6ba46 | 1782 | |
041d709f | 1783 | **** New buffer-local variable `bidi-display-reordering'. |
7d301ae6 | 1784 | To disable display reordering in a buffer, change this to nil. |
d20e1419 | 1785 | |
041d709f CY |
1786 | **** New buffer-local variable `bidi-paragraph-direction'. |
1787 | If nil (the default), Emacs determines the base direction of each | |
dfdb4cad CY |
1788 | paragraph from its text, as specified by the UBA. Setting the value |
1789 | to `right-to-left' or `left-to-right' forces a base direction on each | |
1790 | paragraph. | |
f4b6ba46 | 1791 | |
7d301ae6 CY |
1792 | Paragraphs with right-to-left base direction are displayed starting at |
1793 | the right window edge. | |
f1816485 | 1794 | |
dfdb4cad CY |
1795 | *** Enhanced support for characters with no glyphs in available fonts, |
1796 | or, on text terminals, characters that cannot be encoded by the | |
1797 | terminal coding system. The new option `glyphless-char-display-control' | |
1798 | specifies how to display them: as a hexadecimal code in a box, a thin | |
1799 | 1-pixel space, an empty box, etc. | |
d0ce9f8c | 1800 | |
9702b7a1 GM |
1801 | *** New input methods for Farsi and Bulgarian |
1802 | (farsi-isiri-9147, farsi-transliterate-banan, bulgarian-alt-phonetic). | |
041d709f | 1803 | |
939db9ac CY |
1804 | *** `nobreak-char-display' now also highlights Unicode hyphen chars |
1805 | (U+2010 and U+2011). | |
1806 | ||
7d301ae6 | 1807 | *** New Hebrew translation of the Emacs Tutorial. |
31fd3586 GM |
1808 | Type `C-u C-h t' to choose it in case your language setup doesn't |
1809 | automatically select it. | |
1810 | ||
7d301ae6 CY |
1811 | ** An Emacs Lisp package manager is now included. |
1812 | This is a convenient way to download and install additional packages, | |
1813 | from a package repository at http://elpa.gnu.org. | |
dfdb4cad | 1814 | |
7d301ae6 CY |
1815 | *** M-x list-packages shows a list of packages, which can be |
1816 | selected for installation. | |
dfdb4cad | 1817 | |
7d301ae6 | 1818 | *** New command `describe-package', bound to `C-h P'. |
dfdb4cad | 1819 | |
7d301ae6 CY |
1820 | *** By default, all installed packages are loaded automatically when |
1821 | Emacs starts up. To disable this, set `package-enable-at-startup' to | |
1822 | nil. To specify the packages to load, customize `package-load-list'. | |
16a91140 | 1823 | |
dfdb4cad CY |
1824 | ** Custom theme changes |
1825 | ||
7d301ae6 CY |
1826 | *** New command `M-x customize-themes', which provides a convenient |
1827 | interface for enabling and disabling Custom themes. | |
dfdb4cad | 1828 | |
7d301ae6 | 1829 | *** New option `custom-theme-load-path' is the load path for themes. |
dfdb4cad CY |
1830 | Emacs no longer looks for Custom themes in `load-path'. The default |
1831 | value of `custom-theme-load-path' says to look for themes in | |
1832 | `custom-theme-directory', followed by a subdirectory of | |
1833 | `data-directory' named "themes/", which contains a small selection of | |
1834 | built-in Custom themes. | |
1835 | ||
7d301ae6 CY |
1836 | *** New option `custom-safe-themes' records known-safe theme files. |
1837 | If a theme is not in this list, Emacs queries before loading it, and | |
1838 | offers to save the theme to `custom-safe-themes' automatically. By | |
1839 | default, all themes included in Emacs are treated as safe. | |
b7d65a5f | 1840 | |
7d301ae6 | 1841 | ** Improved GTK integration |
dfdb4cad | 1842 | |
7d301ae6 | 1843 | *** GTK scroll-bars are now placed on the right by default. |
dfdb4cad CY |
1844 | The function `set-scroll-bar-mode' can change this. |
1845 | ||
7d301ae6 | 1846 | *** GTK tool bars can have just text, just images or images and text. |
dfdb4cad CY |
1847 | Customize `tool-bar-style' to choose the style. On a Gnome desktop, |
1848 | the default is taken from desktop settings. | |
1849 | ||
1850 | *** GTK tool bars can be placed on any edge of the frame. | |
7d301ae6 CY |
1851 | The frame-parameter tool-bar-position controls this. It takes the |
1852 | values top, left, right or bottom. The Options => Show/Hide menu has | |
1853 | entries for this. | |
dfdb4cad | 1854 | |
7d301ae6 CY |
1855 | *** The default colors for selected text (the `region' face) are taken |
1856 | from the GTK theme when Emacs is built with GTK. | |
dfdb4cad | 1857 | |
7d301ae6 CY |
1858 | *** Emacs uses GTK tooltips by default if built with GTK. |
1859 | You can disable this by changing `x-gtk-use-system-tooltips' to nil. | |
a5bee597 | 1860 | |
dfdb4cad CY |
1861 | ** Graphical interface changes |
1862 | ||
1863 | *** On graphical displays, the mode-line no longer ends in dashes. | |
1864 | Also, the first dash (which does not indicate anything) is just | |
1865 | displayed as a space. | |
1866 | ||
1867 | *** `menu-bar-select-buffer-function' lets you choose another operation | |
1868 | instead of `switch-to-buffer' when selecting an item in the Buffers menu. | |
1869 | ||
1870 | *** Lucid menus and dialogs can display antialiased fonts if Emacs is | |
1871 | built with Xft. These fonts can be set via X resources, for example: | |
1872 | Emacs.pane.menubar.font: Courier-12 | |
1873 | ||
7d301ae6 | 1874 | ** Exiting changes |
dfdb4cad | 1875 | |
7d301ae6 | 1876 | *** Emacs now calls `kill-emacs' if it receives SIGTERM or SIGHUP, |
dfdb4cad CY |
1877 | or if it receives a SIGINT signal in batch mode. |
1878 | ||
7d301ae6 CY |
1879 | *** `kill-emacs-hook' is now also run in batch mode. |
1880 | Third-party code which adds to `kill-emacs-hook' should check if they | |
1881 | do the right thing in batch mode. | |
9c524fcb | 1882 | |
041d709f | 1883 | ** Scrolling changes |
dfdb4cad | 1884 | |
041d709f | 1885 | *** New scrolling commands `scroll-up-command' and `scroll-down-command' |
0a19a6f8 | 1886 | (bound to C-v/[next] and M-v/[prior]) do not signal errors at top/bottom |
7d301ae6 | 1887 | of buffer at first key-press (instead they move to top/bottom of buffer) |
550f41cd | 1888 | when `scroll-error-top-bottom' is non-nil. |
dfdb4cad CY |
1889 | |
1890 | *** New option `scroll-error-top-bottom' (see above). | |
1891 | ||
041d709f | 1892 | *** New scrolling commands `scroll-up-line' and `scroll-down-line' |
5a97d2da | 1893 | scroll a line instead of full screen. |
dfdb4cad | 1894 | |
041d709f | 1895 | *** New property `scroll-command' should be set on a command's symbol to |
b2957ea8 | 1896 | define it as a scroll command affected by `scroll-preserve-screen-position'. |
dfdb4cad | 1897 | |
041d709f | 1898 | *** If you customize `scroll-conservatively' to a value greater than 100, |
d0f69533 EZ |
1899 | Emacs will never recenter point in the window when it scrolls due to |
1900 | cursor motion commands or commands that move point (e.f., `M-g M-g'). | |
1901 | Previously, you needed to use `most-positive-fixnum' as the value of | |
1902 | `scroll-conservatively' to achieve the same effect. | |
dfdb4cad | 1903 | |
7d301ae6 | 1904 | *** "Aggressive" scrolling now honors the scroll margins. |
d0f69533 EZ |
1905 | If you customize `scroll-up-aggressively' or |
1906 | `scroll-down-aggressively' and move point off the window, Emacs now | |
1907 | scrolls the window so as to avoid positioning point inside the scroll | |
1908 | margin. | |
1909 | ||
7d301ae6 CY |
1910 | ** Basic SELinux support has been added. |
1911 | This requires Emacs to be linked with libselinux at build time. | |
f1a5d776 | 1912 | |
dfdb4cad CY |
1913 | *** Emacs preserves the SELinux file context when backing up. |
1914 | Also, the function `copy-file' has an extra optional argument for | |
1915 | preserving SELinux context, and the return value of `backup-buffer' | |
1916 | now includes the SELinux context. | |
f0bf7c8e | 1917 | |
dfdb4cad | 1918 | *** New functions `file-selinux-context' and `set-file-selinux-context' |
7d301ae6 | 1919 | get and set the SELinux context of a file. |
44198b6e | 1920 | |
7d301ae6 | 1921 | ** Trash changes |
dfdb4cad | 1922 | |
7d301ae6 CY |
1923 | *** `delete-by-moving-to-trash' now only affects commands that specify |
1924 | trashing. This avoids inadvertently trashing temporary files. | |
dfdb4cad | 1925 | |
7d301ae6 CY |
1926 | *** Calling `delete-file' or `delete-directory' with a prefix argument |
1927 | now forces true deletion, regardless of `delete-by-moving-to-trash'. | |
278f6845 | 1928 | |
041d709f | 1929 | ** File- and directory-local variable changes |
dfdb4cad | 1930 | |
041d709f CY |
1931 | *** You can stop directory local vars from applying to subdirectories. |
1932 | Add an element (subdirs . nil) to the alist portion of any variables | |
1933 | settings to indicate that the section should not apply to | |
1934 | subdirectories. | |
dfdb4cad | 1935 | |
041d709f CY |
1936 | *** Directory local variables can apply to some file-less buffers. |
1937 | Affected modes include dired, vc-dir, and log-edit. For example, | |
1938 | adding "(diff-mode . ((mode . whitespace)))" to .dir-locals.el will | |
1939 | turn on `whitespace-mode' for *vc-diff* buffers. Modes should call | |
1940 | `hack-dir-local-variables-non-file-buffer' to support this. | |
dfdb4cad | 1941 | |
041d709f CY |
1942 | *** Using "mode: MINOR-MODE" to enable a minor mode is deprecated. |
1943 | Instead, use "eval: (minor-mode 1)". | |
c136e5cd | 1944 | |
7b447e9b GM |
1945 | *** The variable `inhibit-first-line-modes-regexps' has been renamed |
1946 | to `inhibit-local-variables-regexps'. As the name suggests, it now | |
dfdb4cad CY |
1947 | applies to ALL file local variables, not just -*- lines. The |
1948 | associated `inhibit-first-line-modes-suffixes' has been renamed in the | |
1949 | corresponding way. | |
5d907d6c | 1950 | |
0a2132ba CY |
1951 | ** Window changes |
1952 | ||
91b65361 CY |
1953 | *** The `quit-window' command now restores the last buffer displayed |
1954 | in the quitted window. | |
1955 | ||
0a2132ba CY |
1956 | *** Resizing an Emacs frame now preserves proportional window sizes, |
1957 | modulo restrictions like window minimum sizes and fixed-size windows. | |
1958 | ||
1959 | *** The behavior of `display-buffer' is now customizable in detail. | |
dfdb4cad | 1960 | |
0a2132ba CY |
1961 | **** New option `display-buffer-base-action' specifies a list of |
1962 | user-determined display "actions" (functions and optional arguments | |
1963 | for choosing the displaying window). | |
1964 | ||
1965 | This takes precedence over the default display action, which is | |
1966 | specified by `display-buffer-fallback-action'. | |
1967 | ||
1968 | **** New option `display-buffer-alist' maps buffer name regexps to | |
1969 | display actions, taking precedence over `display-buffer-base-action'. | |
1970 | ||
a0c2d0ae MR |
1971 | *** New option `window-combination-limit'. |
1972 | The new option `window-combination-limit' allows to return the space | |
1973 | obtained for resizing or creating a window more reliably to the window | |
1974 | from which such space was obtained. | |
0a2132ba | 1975 | |
a0c2d0ae MR |
1976 | *** New option `window-combination-resize'. |
1977 | The new option `window-combination-resize' allows to split a window that | |
1978 | otherwise cannot be split because it's too small by stealing space from | |
1979 | other windows in the same combination. Subsequent resizing or deletion | |
1980 | of the window will resize all windows in the same combination as well. | |
0a2132ba | 1981 | |
91b65361 CY |
1982 | *** New option `frame-auto-hide-function' lets you choose between |
1983 | iconifying or deleting a frame when burying a buffer in a dedicated | |
1984 | frame, or quitting a window showing a buffer in a frame of its own. | |
1985 | ||
0a2132ba | 1986 | *** New commands `maximize-window' and `minimize-window'. |
53964682 | 1987 | These maximize and minimize the size of a window within its frame. |
0a2132ba | 1988 | |
0a2132ba CY |
1989 | *** New commands `switch-to-prev-buffer' and `switch-to-next-buffer'. |
1990 | These functions allow to navigate through the live buffers that have | |
1991 | been shown in a specific window. | |
1992 | ||
7d301ae6 | 1993 | ** Minibuffer changes |
dfdb4cad | 1994 | |
7d301ae6 | 1995 | *** The inactive minibuffer has its own major mode `minibuffer-inactive-mode'. |
104dc9c6 GM |
1996 | This is handy for minibuffer-only frames, and is also used for the feature |
1997 | where mouse-1 pops up *Messages*"', which can now easily be changed. | |
041d709f | 1998 | |
7d301ae6 | 1999 | *** Minibuffers set `truncate-lines' to nil. |
f66eca26 | 2000 | If you want to change the value to something else, you could use |
7d301ae6 CY |
2001 | for example `minibuffer-setup-hook'. |
2002 | ||
7d301ae6 CY |
2003 | ** `auto-mode-case-fold' is now enabled by default. |
2004 | ||
7d301ae6 | 2005 | ** `backup-by-copying-when-mismatch' now defaults to t. |
f66eca26 | 2006 | |
dfdb4cad CY |
2007 | ** New basic faces `error', `warning', `success'. |
2008 | These are used to highlight text indicating failure, caution or | |
2009 | successful operation. | |
2010 | ||
2011 | ** New option `list-colors-sort' defines the color sort order | |
2012 | for `list-colors-display'. | |
2013 | ||
2014 | ** The variable `focus-follows-mouse' now always defaults to nil. | |
2015 | ||
0bfd685e | 2016 | \f |
eb199145 | 2017 | * Editing Changes in Emacs 24.1 |
b350bdf2 | 2018 | |
892777ba | 2019 | ** Search changes |
dfdb4cad CY |
2020 | |
2021 | *** C-y in Isearch is now bound to `isearch-yank-kill', instead of | |
2022 | `isearch-yank-line'. | |
2023 | ||
2024 | *** M-y in Isearch is now bound to `isearch-yank-pop', instead of | |
2025 | `isearch-yank-kill'. | |
2026 | ||
2027 | *** M-s C-e in Isearch is now bound to `isearch-yank-line'. | |
2028 | ||
b2b0776e | 2029 | ** New commands `count-words-region' and `count-words'. |
dfdb4cad | 2030 | |
10607bea CY |
2031 | *** M-= is bound to `count-words-region', not `count-lines-region'. |
2032 | The `count-words-region' command, when called interactively, reports | |
2033 | the number of lines, words, and characters in the region. It is a | |
2034 | superset of the old `count-lines-region', which is now an obsolete | |
2035 | alias for it. | |
ea4f7750 | 2036 | |
ec9da840 | 2037 | ** The command `just-one-space' (M-SPC), if given a negative argument, |
1c708c1a CY |
2038 | also deletes newlines around point. |
2039 | ||
b9229673 | 2040 | ** Deletion changes |
dfdb4cad | 2041 | |
b9229673 | 2042 | *** New option `delete-active-region'. |
ddb54206 | 2043 | If non-nil, [delete] and DEL delete the region if it is active and no |
dfdb4cad | 2044 | prefix argument is given. If set to `kill', those commands kill |
ddb54206 | 2045 | instead. |
dfdb4cad | 2046 | |
59ee0542 | 2047 | *** New command `delete-forward-char', bound to [delete]. |
42d9cffa CY |
2048 | This is meant for interactive use, and obeys `delete-active-region'. |
2049 | The command `delete-char' does not obey `delete-active-region'. | |
dfdb4cad | 2050 | |
b9229673 CY |
2051 | *** `delete-backward-char' is now a Lisp function. |
2052 | Apart from obeying `delete-active-region', its behavior is unchanged. | |
7d301ae6 CY |
2053 | However, the byte compiler now warns if it is called from Lisp; Lisp |
2054 | callers should use delete-char with a negative argument instead. | |
dfdb4cad | 2055 | |
b9229673 CY |
2056 | *** The option `mouse-region-delete-keys' has been deleted. |
2057 | ||
f9d71b42 CY |
2058 | ** Selection changes. |
2059 | ||
7d301ae6 CY |
2060 | The default handling of clipboard and primary selections has been |
2061 | changed to conform with modern X applications. In short, most | |
2062 | commands for killing and yanking text now use the clipboard, while | |
2063 | mouse commands use the primary selection. | |
b1ab31ae CY |
2064 | |
2065 | In the following, we provide a list of these changes, followed by a | |
2066 | list of steps to get the old behavior back if you prefer that. | |
2067 | ||
b1ab31ae CY |
2068 | *** `select-active-regions' now defaults to t. |
2069 | Merely selecting text (e.g. with drag-mouse-1) no longer puts it in | |
963578d3 | 2070 | the kill ring. The selected text is put in the primary selection, if |
b1ab31ae CY |
2071 | the system possesses a separate primary selection facility (e.g. X). |
2072 | ||
2073 | **** `select-active-regions' also accepts a new value, `only'. | |
2074 | This means to only set the primary selection for temporarily active | |
2075 | regions (usually made by mouse-dragging or shift-selection); | |
2076 | "ordinary" active regions, such as those made with C-SPC followed by | |
2077 | point motion, do not alter the primary selection. | |
2078 | ||
963578d3 CY |
2079 | **** `mouse-drag-copy-region' now defaults to nil. |
2080 | ||
b1ab31ae CY |
2081 | *** mouse-2 is now bound to `mouse-yank-primary'. |
2082 | This pastes from the primary selection, ignoring the kill-ring. | |
2083 | Previously, mouse-2 was bound to `mouse-yank-at-click'. | |
dfdb4cad | 2084 | |
b1ab31ae | 2085 | *** `x-select-enable-clipboard' now defaults to t on all platforms. |
dfdb4cad | 2086 | |
b1ab31ae CY |
2087 | *** `x-select-enable-primary' now defaults to nil. |
2088 | Thus, commands that kill text or copy it to the kill-ring (such as | |
2089 | M-w, C-w, and C-k) also use the clipboard---not the primary selection. | |
2090 | ||
2091 | **** The "Copy", "Cut", and "Paste" items in the "Edit" menu are now | |
dfdb4cad | 2092 | exactly equivalent to M-w, C-w, and C-y respectively. |
b1ab31ae CY |
2093 | |
2094 | **** Note that on MS-Windows, `x-select-enable-clipboard' was already | |
2095 | non-nil by default, as Windows does not support the primary selection | |
2096 | between applications. | |
2097 | ||
2098 | *** To return to the previous behavior, do the following: | |
dfdb4cad | 2099 | |
104c2fe9 | 2100 | **** Change `select-active-regions' to nil. |
b1ab31ae CY |
2101 | **** Change `mouse-drag-copy-region' to t. |
2102 | **** Change `x-select-enable-primary' to t (on X only). | |
2103 | **** Change `x-select-enable-clipboard' to nil. | |
2104 | **** Bind `mouse-yank-at-click' to mouse-2. | |
f9d71b42 | 2105 | |
084e6df3 | 2106 | *** Support for X cut buffers has been removed. |
dfdb4cad | 2107 | |
3fd50d5c CY |
2108 | *** X clipboard managers are now supported. |
2109 | To inhibit this, change `x-select-enable-clipboard-manager' to nil. | |
4b80f674 | 2110 | |
dfdb4cad CY |
2111 | ** New command `C-x r N' (`rectangle-number-lines') numbers the lines |
2112 | in the current rectangle. With a prefix argument, this prompts for a | |
2113 | number to count from and for a format string. | |
99f053cf | 2114 | |
7d301ae6 | 2115 | ** `redisplay-dont-pause' now defaults to t. |
6bf7006f EZ |
2116 | This makes Emacs feel more responsive to editing commands that arrive |
2117 | at high rate, e.g. if you lean on some key, because stopping redisplay | |
2118 | in the middle (when this variable is nil) forces more expensive | |
2119 | updates later on, and Emacs appears to be unable to keep up. | |
2120 | ||
e70b5064 CY |
2121 | ** The behavior of <TAB> for active regions in Text mode has changed. |
2122 | In Text and related modes, typing <TAB> (`indent-for-tab-command') | |
2123 | when the region is active causes Emacs to indent all the lines in the | |
2124 | region, aligning them with the line previous to the first line in the | |
2125 | region (or with the left margin if there is no previous line). | |
2126 | ||
dfdb4cad CY |
2127 | ** When `occur' is called with a prefix argument, matching strings are |
2128 | collected into the `*Occur*' buffer without line numbers. If there | |
2129 | are parenthesized subexpressions in the specified regexp, `occur' | |
2130 | reads replacement text that may contain \\& and \\N whose convention | |
2131 | follows `replace-match'. | |
2132 | ||
9bae34bf | 2133 | \f |
eb199145 | 2134 | * Changes in Specialized Modes and Packages in Emacs 24.1 |
efeb796b | 2135 | |
041d709f | 2136 | ** Archive Mode has basic support for browsing and updating 7z archives. |
d76674bb | 2137 | |
b7c3692a | 2138 | ** BibTeX mode |
dfdb4cad | 2139 | |
2de69e00 | 2140 | *** BibTeX mode now supports biblatex. |
7d301ae6 CY |
2141 | Use the variable `bibtex-dialect' to select different BibTeX dialects. |
2142 | `bibtex-entry-field-alist' is now an obsolete alias for | |
2143 | `bibtex-BibTeX-entry-alist'. | |
2144 | ||
dfdb4cad CY |
2145 | *** New command `bibtex-search-entries', bound to C-c C-a. |
2146 | ||
b7c3692a | 2147 | *** New `bibtex-entry-format' option `sort-fields', disabled by default. |
dfdb4cad | 2148 | |
022fe7ce RW |
2149 | *** New variable `bibtex-search-entry-globally'. |
2150 | ||
7d301ae6 | 2151 | ** Browse-url |
dfdb4cad | 2152 | |
7d301ae6 | 2153 | *** New option `browse-url-mailto-function' specifies how to handle "mailto:"s. |
dfdb4cad | 2154 | |
7d301ae6 CY |
2155 | *** The default browser used by the package is now the "xdg-open" program, |
2156 | on platforms that support it. This calls your desktop's preferred browser. | |
2157 | ||
86e100a6 GM |
2158 | ** Calc |
2159 | ||
2160 | *** Support for musical notes. | |
2161 | ||
2162 | *** Support for logarithmic units. | |
2163 | ||
2164 | *** No longer uses the tex prefix for TeX specific unit names when | |
2165 | using TeX or LaTeX mode. | |
2166 | ||
2167 | *** New option to highlight selections using faces. | |
2168 | ||
2169 | *** `calc-histogram' has the option of using a vector to determine the bins. | |
2170 | ||
2171 | *** New "O" option prefix. | |
2172 | ||
2173 | *** Use the "O" prefix to "d r" (`calc-radix') to turn on twos-complement mode. | |
2174 | ||
cf16af42 GM |
2175 | ** Calendar, Diary, and Appt |
2176 | ||
7d301ae6 | 2177 | *** Diary entries can contain non-printing "comments". |
548d0a63 GM |
2178 | See the variable `diary-comment-start'. |
2179 | ||
5006e634 GM |
2180 | *** Appointments can specify their individual warning times. |
2181 | See the variable `appt-warning-time-regexp'. | |
2182 | ||
0a2bb1a9 GM |
2183 | *** The function specified by `appt-disp-window-function' may be passed |
2184 | lists of arguments if multiple appointments are due at similar times. | |
2185 | If you are using a custom function for this, you should update it. | |
2186 | ||
7454f200 GM |
2187 | *** New function `diary-hebrew-birthday'. |
2188 | ||
e565dd37 GM |
2189 | *** Elements of `calendar-day-abbrev-array' and `calendar-month-abbrev-array' |
2190 | may no longer be nil, but must all be strings. | |
2191 | ||
7d301ae6 CY |
2192 | *** The obsolete (since Emacs 22.1) method of enabling the appt |
2193 | package by adding `appt-make-list' to `diary-hook' has been removed. | |
2194 | Use `appt-activate' instead. | |
cf16af42 | 2195 | |
cf16af42 GM |
2196 | *** Some appt variables (obsolete since Emacs 22.1) have been removed: |
2197 | appt-issue-message (use the function appt-activate) | |
2198 | appt-visible/appt-msg-window (use the variable appt-display-format) | |
2199 | ||
cf16af42 GM |
2200 | *** Some diary function aliases (obsolete since Emacs 22.1) have been removed: |
2201 | view-diary-entries, list-diary-entries, show-all-diary-entries | |
2202 | ||
551b046f | 2203 | ** CC Mode |
dfdb4cad | 2204 | |
551b046f | 2205 | *** New feature to "guess" the style in an existing buffer. |
7d301ae6 | 2206 | The main entry point is M-x c-guess. |
041d709f | 2207 | |
551b046f AM |
2208 | *** Java Mode now supports Java 5.0 (Tiger) and 6 (Mustang). |
2209 | ||
dfdb4cad | 2210 | *** `c-beginning-of-defun' and `c-end-of-defun' now respect nested scopes. |
551b046f AM |
2211 | Thus C-M-a will, by default, go to the beginning of the immediate function, |
2212 | not the top level. | |
2213 | ||
dfdb4cad | 2214 | *** "Macros with semicolons" can be registered for correct indentation. |
551b046f AM |
2215 | Where such a macro ends a line (no semicolon) the next statement is no longer |
2216 | parsed as a statement continuation. | |
2217 | ||
dfdb4cad | 2218 | ** Comint and modes derived from it use the standard completion code. |
041d709f CY |
2219 | |
2220 | ** Compilation mode | |
dfdb4cad | 2221 | |
7d301ae6 | 2222 | *** Compilation mode can be used without Font Lock mode. |
041d709f CY |
2223 | `compilation-parse-errors-function' is now obsolete. |
2224 | ||
dfdb4cad | 2225 | *** New variable `compilation-filter-start', which is bound while |
7d301ae6 CY |
2226 | `compilation-filter-hook' runs. It records the start position of the |
2227 | text inserted by `compilation-filter'. | |
041d709f | 2228 | |
47a6a35f GM |
2229 | *** `compilation-error-screen-columns' and `compilation-first-column' |
2230 | are obeyed in the editing buffer. So programming language modes can | |
7d301ae6 CY |
2231 | set them, whereas previously only the value in the *Compilation* |
2232 | buffer was used. | |
1dce7193 | 2233 | |
52834b6b CY |
2234 | ** Customize |
2235 | ||
2236 | *** Customize buffers now contain a search field. | |
2237 | The search is performed using `customize-apropos'. | |
7d301ae6 | 2238 | To turn off the search field, set `custom-search-field' to nil. |
52834b6b | 2239 | |
8d5dd370 | 2240 | *** Options in customize group buffers start out hidden if not customized. |
52834b6b CY |
2241 | Use the arrow to the left of the option name to toggle visibility. |
2242 | ||
2243 | *** custom-buffer-sort-alphabetically now defaults to t. | |
2244 | ||
2245 | *** The color widget now has a "Choose" button, which allows you to | |
7d301ae6 | 2246 | choose a color via `list-colors-display'. |
52834b6b | 2247 | |
041d709f CY |
2248 | ** D-Bus |
2249 | ||
5da3be7f GM |
2250 | *** It is now possible to access buses other than the default system |
2251 | or session bus. | |
041d709f | 2252 | |
7d301ae6 | 2253 | *** The `dbus-register-method' and `dbus-register-property' functions |
5da3be7f | 2254 | optionally do not register names. |
041d709f | 2255 | |
7d301ae6 | 2256 | *** The new function `dbus-register-service' registers a known service |
dfdb4cad | 2257 | name on a D-Bus without also registering a property or a method. |
041d709f | 2258 | |
f5d6548a | 2259 | ** Dired-x |
425a25f1 | 2260 | |
7d301ae6 CY |
2261 | *** C-x C-j (`dired-jump') and C-x 4 C-j (`dired-jump-other-window'), |
2262 | if called with a prefix argument, read a file name from the minibuffer | |
2263 | instead of using the current buffer. | |
f5d6548a | 2264 | |
7d301ae6 | 2265 | *** The "dired local variables" feature of Dired-x is obsolete. |
817b48a7 | 2266 | The standard directory local variables feature replaces it. |
8117868f | 2267 | |
041d709f | 2268 | ** ERC changes |
7492acc9 | 2269 | |
c4077254 GM |
2270 | *** New options `erc-autojoin-timing' and `erc-autojoin-delay', |
2271 | controlling attempts to autojoin a channel. | |
041d709f CY |
2272 | |
2273 | *** New variable `erc-coding-system-precedence': If we use `undecided' | |
2274 | as the server coding system, this variable will then be consulted. | |
2275 | The default is to decode strings that can be decoded as utf-8 as | |
2276 | utf-8, and do the normal `undecided' decoding for the rest. | |
7492acc9 | 2277 | |
041d709f | 2278 | ** Eshell changes |
7492acc9 | 2279 | |
05f77e38 GM |
2280 | *** The default value of `eshell-directory-name' has changed |
2281 | to be an "eshell" directory in `user-emacs-directory'. | |
2282 | The old "~/.eshell/" directory is still used if it exists, though. | |
041d709f CY |
2283 | |
2284 | ** gdb-mi | |
dfdb4cad CY |
2285 | |
2286 | *** The M-x gdb command now uses the GDB Machine Interface protocol. | |
05f77e38 GM |
2287 | It now supports multithread non-stop debugging and simultaneous |
2288 | debugging of several threads. | |
7492acc9 | 2289 | |
18af70d0 CY |
2290 | ** Image mode |
2291 | ||
05f77e38 GM |
2292 | *** RET (`image-toggle-animation') toggles animation, if applicable. |
2293 | Animation plays once, unless the option `image-animate-loop' is non-nil. | |
18af70d0 | 2294 | |
041d709f | 2295 | ** Info |
723ee192 | 2296 | |
7d301ae6 | 2297 | *** New command M-x info-display-manual displays a named Info manual. |
2ebc3b94 GM |
2298 | If that manual is already visited in some Info buffer, it displays |
2299 | that buffer. (This is handy if you have many manuals in many *info* | |
2300 | buffers, and don't remember the name of the buffer visiting the manual | |
2301 | you want to consult.) Otherwise, it loads and displays the manual. | |
691cf4a0 | 2302 | |
24ea72d3 EZ |
2303 | *** `e' is now bound to `end-of-buffer' rather than to `Info-edit'. |
2304 | This is for compatibility with the stand-alone Info reader program, | |
2305 | and also because `Info-edit' is a rarely used command that is disabled | |
2306 | by default. | |
2307 | ||
7d301ae6 | 2308 | ** Mail mode changes (not Message mode) |
dfdb4cad | 2309 | |
7d301ae6 | 2310 | *** New command M-x mail-add-attachment for adding MIME attachments |
7d301ae6 | 2311 | |
dfdb4cad CY |
2312 | *** The command M-x mail-attach-file was renamed to M-x mail-insert-file. |
2313 | (Its name is misleading, since it has nothing to do with MIME | |
2314 | attachments.) The old name is now an obsolete alias to the new name. | |
2315 | ||
f2c3a9eb | 2316 | ** MH-E has been updated to MH-E version 8.3.1. |
041d709f | 2317 | See MH-E-NEWS for details. |
37221432 | 2318 | |
041d709f | 2319 | ** Modula-2 mode provides auto-indentation. |
37221432 | 2320 | |
041d709f | 2321 | ** mpc.el: Can use pseudo tags of the form tag1|tag2 as a union of two tags. |
3c3d4f5b | 2322 | |
5d1ac394 | 2323 | ** nXML mode no longer binds C-RET to `nxml-complete'. |
dfdb4cad CY |
2324 | Completion is now performed via `completion-at-point', bound to C-M-i |
2325 | or M-TAB. If `nxml-bind-meta-tab-to-complete-flag' is non-nil (the | |
2326 | default), this performs tag completion. | |
5d1ac394 | 2327 | |
f2c3a9eb CY |
2328 | ** Org mode has been updated to version 7.8.09. |
2329 | See ORG-NEWS for details. | |
2330 | ||
041d709f | 2331 | ** Prolog mode has been completely revamped, with lots of additional |
7d301ae6 CY |
2332 | functionality such as more intelligent indentation, electricity, |
2333 | support for more variants, including Mercury, and a lot more. | |
041d709f CY |
2334 | |
2335 | ** Rmail | |
2336 | ||
2337 | *** The command `rmail-epa-decrypt' decrypts OpenPGP data | |
2338 | in the Rmail incoming message. | |
2339 | ||
50419064 GM |
2340 | *** The variable `rmail-message-filter' no longer has any effect. |
2341 | This change was made in Emacs 23.1 but was not advertised at the time. | |
2342 | Try using `rmail-show-message-hook' instead. | |
2343 | ||
717a1362 | 2344 | ** Shell mode |
dfdb4cad CY |
2345 | |
2346 | *** M-x shell prompts for the shell path name if the default directory | |
2347 | is a remote file name and neither the environment variable $ESHELL nor | |
2348 | the variable `explicit-shell-file-name' is set. | |
2349 | ||
2350 | *** TAB is now bound to the standard `completion-at-point' command, | |
2351 | which now implements the pcomplete rules for shell command completion. | |
717a1362 | 2352 | |
7d301ae6 CY |
2353 | ** SMTPmail |
2354 | ||
dfdb4cad | 2355 | *** SMTPmail now uses encrypted connections (via STARTTLS) by default |
7d301ae6 CY |
2356 | if the mail server supports them. This uses either built-in GnuTLS |
2357 | support, or the starttls.el library. Customize `smtpmail-stream-type' | |
2358 | to change this. | |
2359 | ||
7d301ae6 CY |
2360 | *** The variable `smtpmail-auth-credentials' has been removed. |
2361 | By default, the information is now stored in the file ~/.authinfo. | |
dfdb4cad CY |
2362 | This was the default value of smtpmail-auth-credentials. If you had |
2363 | customized smtpmail-auth-credentials to a list of user names and | |
2364 | passwords, those settings are not used. During your first connection | |
2365 | to the smtp server, Emacs will prompt for the user name and password, | |
2366 | and offer to save them to ~/.authinfo. Or you can manually copy the | |
2367 | credentials to ~/.authinfo. For example, if you had | |
7d301ae6 CY |
2368 | |
2369 | (setq smtpmail-auth-credentials | |
2370 | '(("mail.example.org" 25 "jim" "s!cret"))) | |
2371 | ||
2372 | then the equivalent line in ~/.authinfo would be | |
2373 | ||
2374 | machine mail.example.org port 25 login jim password s!cret | |
2375 | ||
2376 | See the auth-source manual for more information, e.g. on encrypting | |
2377 | the credentials file. | |
2378 | ||
7d301ae6 | 2379 | *** The variable `smtpmail-starttls-credentials' has been removed. |
dfdb4cad | 2380 | If you had that set, you need to put |
7d301ae6 CY |
2381 | |
2382 | machine smtp.whatever.foo port 25 key "~/.my_smtp_tls.key" cert "~/.my_smtp_tls.cert" | |
2383 | ||
2384 | in your ~/.authinfo file instead. | |
2385 | ||
8ce192e3 LI |
2386 | *** SMTPmail defaults to using the address in the From: header as the |
2387 | SMTP MAIL FROM envelope. To override this, set `mail-envelope-from' | |
2388 | to the address you wish to use instead. | |
2389 | ||
34e8a2da | 2390 | ** SQL mode |
041d709f | 2391 | |
34e8a2da GM |
2392 | *** New options `sql-port', `sql-connection-alist', `sql-send-terminator', |
2393 | and `sql-oracle-scan-on'. | |
041d709f | 2394 | |
dfdb4cad | 2395 | *** New options controlling prompting for login parameters. |
34e8a2da GM |
2396 | Each supported product has a custom variable `sql-*-login-params', |
2397 | which is a list of the parameters to be prompted for before a | |
2398 | connection is established. | |
041d709f CY |
2399 | |
2400 | *** The command `sql-product-interactive' now takes a prefix argument, | |
34e8a2da | 2401 | which causes it to prompt for an SQL product. |
041d709f | 2402 | |
34e8a2da | 2403 | *** Product-specific SQL interactive commands now take prefix arguments. |
041d709f CY |
2404 | These commands (`sql-sqlite', `sql-postgres', `sql-mysql', etc.), |
2405 | given a prefix argument, prompt for a name for the SQL interactive | |
2406 | buffer. This reduces the need for calling `sql-rename-buffer'. | |
2407 | ||
2408 | *** SQL interactive modes suppress command continuation prompts, and | |
2409 | replace tabs with spaces. The first change impacts multiple line SQL | |
2410 | statements entered with C-j between each line, statements yanked into | |
2411 | the buffer and statements sent with `sql-send-*' functions. The | |
34e8a2da GM |
2412 | second prevents the MySQL and Postgres interpreters from listing |
2413 | object name completions when sent text via `sql-send-*' functions. | |
041d709f CY |
2414 | |
2415 | *** New command `sql-connect' starts a predefined SQLi session, | |
2416 | using the login parameters from `sql-connection-alist'. | |
2417 | ||
2418 | *** New "Save Connection" menu item in SQLi buffers. | |
2419 | This gathers the login params specified for the SQLi session, if it | |
2420 | was not started by a connection, and saves them as a new connection. | |
2421 | ||
34e8a2da GM |
2422 | *** New commands for listing database objects and details: |
2423 | sql-list-all and sql-list-table. | |
041d709f CY |
2424 | |
2425 | *** An API for manipulating SQL product definitions has been added. | |
2426 | ||
2427 | ** TeX modes | |
2428 | ||
2429 | *** latex-electric-env-pair-mode keeps \begin..\end matched on the fly. | |
412b9ee5 | 2430 | |
459bba37 | 2431 | ** Tramp |
dfdb4cad | 2432 | |
7d301ae6 | 2433 | *** New inline access method "ksu" (kerberized su). |
dfdb4cad | 2434 | |
459bba37 | 2435 | *** The following access methods are discontinued: "ssh1_old", |
ea843702 | 2436 | "ssh2_old", "scp1_old", "scp2_old", "imap", "imaps" and "fish". |
dfdb4cad | 2437 | |
b011fbfe GM |
2438 | *** The user option `remote-file-name-inhibit-cache' controls whether |
2439 | remote file attributes are cached for better performance. | |
dfdb4cad | 2440 | |
58f74fe4 MA |
2441 | *** The option `ange-ftp-binary-file-name-regexp' has changed its |
2442 | default value to "". | |
dfdb4cad | 2443 | |
7d301ae6 CY |
2444 | *** Handlers for `file-selinux-context' and `set-file-selinux-context' |
2445 | for remote machines which support SELinux. | |
58f74fe4 | 2446 | |
dfdb4cad | 2447 | ** New function `url-queue-retrieve', which behaves like url-retrieve, |
a48ec60c GM |
2448 | but with limits (`url-queue-parallel-processes', `url-queue-timeout') on |
2449 | the degree of parallelism. | |
177549d0 | 2450 | |
0c32ce32 CY |
2451 | ** VC and related modes |
2452 | ||
2453 | *** Support for pulling on distributed version control systems. | |
7d301ae6 CY |
2454 | The command C-x v + (`vc-pull') runs a "pull" operation, if it is |
2455 | supported (currently with Bzr, Git, and Mercurial), to update the | |
2456 | current branch and working tree. A prefix argument means to prompt | |
2457 | the user for specifics, e.g. a pull location. | |
0c32ce32 | 2458 | |
dab3703d | 2459 | *** `vc-update' is now an alias for `vc-pull'. |
0c32ce32 CY |
2460 | |
2461 | *** Support for merging on distributed version control systems. | |
7d301ae6 CY |
2462 | The command C-x v m (`vc-merge') now runs a "merge" operation, if it |
2463 | is supported (currently with Bzr, Git, and Mercurial), to merge | |
2464 | changes from another branch into the current one. It prompts for | |
2465 | specifics, e.g. a merge source. | |
0c32ce32 | 2466 | |
2afef60a | 2467 | *** New option `vc-revert-show-diff' controls whether `vc-revert' |
bbe43420 | 2468 | shows a diff while querying the user. It defaults to t. |
2afef60a | 2469 | |
d4eb88c7 CY |
2470 | *** Log entries in some Log View buffers can be toggled to display a |
2471 | longer description by typing RET (log-view-toggle-entry-display). | |
dab3703d GM |
2472 | This is currently supported for Bzr, Git, and Mercurial (to support |
2473 | another backend, define a `log-view-expanded-log-entry-function'). | |
7d301ae6 | 2474 | In the Log View buffers made by C-x v L (`vc-print-root-log'), you can |
d4eb88c7 CY |
2475 | use this to display the full log entry for the revision at point. |
2476 | ||
1c6c854e CS |
2477 | *** New command `vc-ediff' allows visual comparison of two revisions |
2478 | of a file similar to `vc-diff', but using ediff backend. | |
2479 | ||
86c60681 CY |
2480 | *** The option `vc-initial-comment' was removed in Emacs 23.2, but |
2481 | this was not advertised at the time. | |
2482 | ||
86c60681 CY |
2483 | *** `vc-toggle-read-only' is an obsolete alias for `toggle-read-only'. |
2484 | Since Emacs 23, it has done the same thing as `toggle-read-only', but | |
80c6d77f GM |
2485 | this was not advertised at the time. |
2486 | ||
041d709f CY |
2487 | ** Obsolete modes |
2488 | ||
23d70505 GM |
2489 | *** abbrevlist.el |
2490 | ||
f8ca9162 | 2491 | *** erc-hecomplete.el (use erc-pcomplete.el instead) |
23d70505 GM |
2492 | |
2493 | *** partial-completion-mode (complete.el) is obsolete. | |
041d709f CY |
2494 | You can get a comparable behavior with: |
2495 | (setq completion-styles '(partial-completion initials)) | |
2496 | (setq completion-pcm-complete-word-inserts-delimiters t) | |
2497 | ||
23d70505 GM |
2498 | *** pc-mode.el is obsolete (CUA mode is much more comprehensive). |
2499 | ||
2c719188 | 2500 | *** pgg is obsolete (use EasyPG instead). |
041d709f CY |
2501 | |
2502 | *** sregex.el is obsolete, since rx.el is a strict superset. | |
2503 | ||
23d70505 GM |
2504 | *** s-region.el and pc-select.el are obsolete. |
2505 | They are superseded by shift-select-mode, enabled by default since 23.1. | |
2506 | ||
2c719188 | 2507 | *** vc-mcvs.el is obsolete (for lack of a maintainer). |
ca5eed61 | 2508 | |
0fe719e6 GM |
2509 | ** Miscellaneous |
2510 | ||
05f77e38 | 2511 | *** The Landmark game is now invoked with `landmark', not `lm'. |
c6ad2a4e | 2512 | Its functions and variables have been similarly renamed. |
05f77e38 | 2513 | |
dfdb4cad | 2514 | *** In `ido-file-completion-map', C-v is no longer bound to `ido-toggle-vc'. |
05f77e38 GM |
2515 | (This interfered with cua-mode.) |
2516 | ||
9f678528 GM |
2517 | *** f90.el has some support for Fortran 2008 syntax. |
2518 | ||
0fe719e6 GM |
2519 | *** `copyright-fix-years' can optionally convert consecutive years to ranges. |
2520 | ||
5b3e6db8 GM |
2521 | *** New command `nato-region' converts text to NATO phonetic alphabet. |
2522 | ||
eb199145 GM |
2523 | \f |
2524 | * New Modes and Packages in Emacs 24.1 | |
d445b3f8 | 2525 | |
60e56523 | 2526 | ** Occur Edit mode applies edits made in *Occur* buffers to the |
8c0f49f0 | 2527 | original buffers. It is bound to "e" in Occur mode. |
60e56523 | 2528 | |
a075a2c5 GM |
2529 | ** New global minor mode electric-pair-mode. |
2530 | When enabled, typing an open parenthesis automatically inserts the | |
2531 | matching closing one. | |
2532 | ||
2533 | ** New global minor mode electric-indent-mode. | |
2534 | When enabled, typing certain characters triggers reindentation. | |
cd3308f3 GM |
2535 | Major modes wishing to use this can set electric-indent-chars or |
2536 | electric-indent-functions. | |
a075a2c5 GM |
2537 | |
2538 | ** New global minor mode electric-layout-mode. | |
2539 | When enabled, typing certain characters automatically inserts newlines. | |
cd3308f3 | 2540 | Major modes wishing to use this can set electric-layout-rules. |
3b843809 | 2541 | |
a83ec3c9 CY |
2542 | ** tabulated-list.el provides a generic major mode for tabulated data, |
2543 | from which other modes can be derived. | |
2544 | ||
d02c9bcd SM |
2545 | ** pcase.el provides the ML-style pattern matching macro `pcase'. |
2546 | ||
7725ebb7 MA |
2547 | ** secrets.el is an implementation of the Secret Service API, an |
2548 | interface to password managers like GNOME Keyring or KDE Wallet. The | |
065f2743 MA |
2549 | Secret Service API requires D-Bus for communication. The command |
2550 | `secrets-show-secrets' offers a buffer with a visualization of the | |
2551 | secrets. | |
7725ebb7 | 2552 | |
f9e78150 MA |
2553 | ** notifications.el provides an implementation of the Desktop |
2554 | Notifications API. It requires D-Bus for communication. | |
2555 | ||
12fe5bcc MA |
2556 | ** soap-client.el supports access to SOAP web services from Emacs. |
2557 | soap-inspect.el is an interactive inspector for SOAP WSDL structures. | |
2558 | ||
ff1796f3 | 2559 | ** New generic mode, xmodmap-generic-mode, for xmodmap files. |
ad7d6ecb | 2560 | |
53bbe3ad | 2561 | ** New emacs-lock.el package. |
7d301ae6 CY |
2562 | The previous version has been moved to obsolete/old-emacs-lock.el. |
2563 | Now, there is a proper minor mode `emacs-lock-mode'. Protection | |
2564 | against exiting Emacs and killing the buffer can be set separately. | |
2565 | The mechanism for automatically turning off protection for buffers | |
2566 | with dead inferior processes has been generalized. | |
53bbe3ad | 2567 | |
eb199145 GM |
2568 | \f |
2569 | * Incompatible Lisp Changes in Emacs 24.1 | |
6dfcbe31 | 2570 | |
7d301ae6 CY |
2571 | ** Passing a nil argument to a minor mode function call now ENABLES |
2572 | the minor mode unconditionally. This is so that you can write e.g. | |
2573 | ||
dfdb4cad | 2574 | (add-hook 'text-mode-hook 'foo-mode) |
7d301ae6 | 2575 | |
dfdb4cad CY |
2576 | to enable foo-mode in Text mode buffers, removing the need for |
2577 | `turn-on-foo-mode' style functions. This affects all mode commands | |
2578 | defined by `define-minor-mode'. If called interactively, the mode | |
2579 | command still toggles the minor mode. | |
7d301ae6 | 2580 | |
d268b4fe CY |
2581 | ** The return value of `backup-buffer' has changed. |
2582 | It is now a list of three elements, where the second element is a list | |
2583 | describing the original file's SELinux context. If Emacs or the | |
f003f294 | 2584 | system lacks SELinux support, the context list is (nil nil nil nil). |
7d301ae6 | 2585 | See "Basic SELinux support" above, under "Changes in Emacs 24.1". |
d268b4fe | 2586 | |
dfdb4cad CY |
2587 | ** `char-direction-table' and the `char-direction' function were deleted. |
2588 | They were buggy and inferior to the new support of bidirectional | |
2589 | editing introduced in Emacs 24. If you need the bidirectional | |
2590 | properties of a character, use `get-char-code-property' with the last | |
2591 | argument `bidi-class'. | |
fa6996bc | 2592 | |
470d996d TV |
2593 | ** `copy-directory' now copies the source directory as a subdirectory |
2594 | of the target directory, if the latter is an existing directory. The | |
2595 | new optional arg COPY-CONTENTS, if non-nil, makes the function copy | |
2596 | the contents directly into a pre-existing target directory. | |
2597 | ||
9173a8fb CY |
2598 | ** For mouse click input events in the text area, the Y pixel |
2599 | coordinate in the POSITION list now counts from the top of the text | |
2600 | area, excluding any header line. Previously, it counted from the top | |
2601 | of the header line. | |
2602 | ||
7d301ae6 CY |
2603 | ** Support for "old-style" backquotes, obsolete for 10+ years, has |
2604 | been further reduced. Now a backquote not followed by a space is | |
2605 | always treated as a "new-style" backquote. Please remove all | |
2606 | "old-style" backquotes from your code. If your code uses backquotes | |
2607 | as documented in the Elisp manual, and compiles without warning, then | |
2608 | you have nothing to do in this regard. Code not following the | |
2609 | appropriate conventions may fail to compile. | |
50ab02c5 CY |
2610 | |
2611 | The most common cause of trouble seems to be an old-style backquote | |
2612 | followed by a newline. Another cause of trouble is vector notation | |
2613 | for key sequence notation: instead of [(control ,)] and [(control ')], | |
2614 | you should write [(control ?,)] and [(control ?')], which will work in | |
7d301ae6 | 2615 | older Emacsen too. |
288cf4e9 | 2616 | |
520f2425 GM |
2617 | ** The macro `eval-at-startup' was removed in Emacs 23.2, but this |
2618 | was not advertised at the time. The function `custom-initialize-delay' | |
2619 | replaced all known uses. | |
2620 | ||
7d301ae6 CY |
2621 | ** `view-buffer' now treats special mode-class in the same way that |
2622 | `view-file' has since Emacs 22 (i.e. it won't enable View mode if the | |
2623 | major mode is special). | |
fd5c9dfa | 2624 | |
7d301ae6 | 2625 | ** Menu and tool bar changes |
6431f2e6 | 2626 | |
7d301ae6 | 2627 | *** During startup, Emacs no longer adds entries for `menu-bar-lines' |
0a19a6f8 JB |
2628 | and `tool-bar-lines' to `default-frame-alist' and `initial-frame-alist'. |
2629 | With these alist entries omitted, `make-frame' checks the value of the | |
2630 | variable `menu-bar-mode'/`tool-bar-mode' to determine whether to create | |
2631 | a menu-bar or tool-bar, respectively. If the alist entries are added, | |
2632 | they override the value of `menu-bar-mode'/`tool-bar-mode'. | |
6431f2e6 | 2633 | |
7d301ae6 CY |
2634 | *** The menu bar bindings's caches are not used any more. |
2635 | Use (where-is-internal <def> nil t) instead. | |
2636 | ||
fe0aa820 | 2637 | ** Regions created by mouse dragging are now normal active regions, |
dfdb4cad | 2638 | similar to those created by shift-selection (see Selection changes |
7d301ae6 CY |
2639 | above). In previous Emacs versions, these regions were delineated by |
2640 | `mouse-drag-overlay'; that variable has been removed. | |
d6d8ee7a | 2641 | |
7d301ae6 CY |
2642 | ** The fourth argument of `filter-buffer-substring' has been removed. |
2643 | If you want to remove text properties from the final result, simply | |
2644 | pass the result through substring-no-properties. | |
34c99998 | 2645 | |
4583e796 GM |
2646 | ** cl.el no longer provides `cl-19'. |
2647 | ||
7d301ae6 CY |
2648 | ** The following obsolete functions and aliases have been removed |
2649 | (the appropriate new function is given in parentheses; "not needed" | |
2650 | means you can just remove all calls to the function in question): | |
2651 | ||
2652 | *** `comint-kill-output' (`comint-delete-output') | |
2653 | *** `decompose-composite-char' (`char-to-string') | |
2654 | *** `outline-visible' (`outline-invisible-p') | |
2655 | *** `internal-find-face' (`facep') | |
2656 | *** `internal-get-face' (`facep and check-face') | |
2657 | *** `frame-update-faces' (not needed) | |
2658 | *** `frame-update-face-colors' (`frame-set-background-mode') | |
2659 | *** `x-frob-font-weight' and `x-frob-font-slant' (`make-face-*' functions) | |
2c719188 | 2660 | *** `x-make-font-bold and x-make-font-demibold (`make-face-bold') |
7d301ae6 CY |
2661 | *** `x-make-font-italic' and `x-make-font-oblique' (`make-face-italic') |
2662 | *** `x-make-font-bold-italic' (`make-face-bold-italic') | |
2663 | *** `x-make-font-unbold' (`make-face-unbold') | |
2664 | *** `x-make-font-unitalic' (`make-face-unitalic') | |
2665 | *** `mldrag-drag-mode-line' (`mouse-drag-mode-line') | |
2666 | *** `mldrag-drag-vertical-line' (`mouse-drag-vertical-line') | |
2667 | *** `iswitchb-default-keybindings' (`iswitchb-mode') | |
2668 | *** `char-bytes' (== 1) | |
2669 | *** `isearch-return-char' (`isearch-printing-char') | |
2670 | *** `make-local-hook' (not needed) | |
2671 | *** `set-screen-height' (`set-frame-height') | |
2672 | *** `set-screen-width' (`set-frame-width') | |
2673 | ||
7d301ae6 CY |
2674 | ** The following obsolete variables and varaliases have been removed |
2675 | (the appropriate new variable is given in parentheses): | |
2676 | ||
2677 | *** `checkdoc-minor-keymap' (`checkdoc-minor-mode-map') | |
2678 | *** `vc-header-alist' (`vc-BACKEND-header') | |
2679 | *** `directory-sep-char' (== ?/) | |
2680 | *** `font-lock-defaults-alist' (`font-lock-defaults') | |
2681 | *** `e' (`float-e'). | |
3226d6ca | 2682 | |
041d709f | 2683 | ** The following obsolete files were removed: |
7b0e3048 GM |
2684 | sc.el, x-menu.el, rnews.el, rnewspost.el |
2685 | ||
7d301ae6 CY |
2686 | ** The format of the finder-inf.el file has changed, since the Finder |
2687 | mechanism is now based on the package system. The variable | |
2688 | `finder-package-info' is replaced by `package--builtins' and | |
2689 | `finder-keywords-hash'. | |
33658d4e | 2690 | |
c2c79260 DE |
2691 | ** When generating autoloads, `update-directory-autoloads' no longer |
2692 | assumes every inspected file is in your `load-path'. It instead | |
2693 | generates relative names according to the current `load-path'. | |
2694 | ||
eb199145 | 2695 | \f |
93e0bed6 | 2696 | * Lisp Changes in Emacs 24.1 |
9097e8af | 2697 | |
041d709f | 2698 | ** Code can now use lexical scoping by default instead of dynamic scoping. |
dfdb4cad | 2699 | The `lexical-binding' variable enables lexical scoping for local |
48da7392 | 2700 | variables. It is typically set via a file-local variable in the first |
dfdb4cad CY |
2701 | line of the file, in which case it applies to all the code in that |
2702 | file. | |
2703 | ||
041d709f CY |
2704 | *** `eval' takes a new optional argument `lexical' to choose the new lexical |
2705 | binding instead of the old dynamic binding mode. | |
dfdb4cad | 2706 | |
041d709f CY |
2707 | *** Lexically scoped interpreted functions are represented with a new form |
2708 | of function value which looks like (closure ENV ARGS &rest BODY). | |
2709 | ||
2710 | *** New macro `letrec' to define recursive local functions. | |
dfdb4cad CY |
2711 | |
2712 | *** `defvar' and `defconst' now mark the variable as special (dynamic). | |
2713 | So do `defcustom' and other forms that call `defvar' as a subroutine. | |
2714 | ||
041d709f CY |
2715 | *** New function `special-variable-p' to check whether a variable is |
2716 | declared as dynamically bound. | |
2717 | ||
88ed9e87 SM |
2718 | *** The form ((lambda ...) ...) is deprecated. |
2719 | ||
041d709f CY |
2720 | ** An Emacs Lisp testing tool is now included. |
2721 | Emacs Lisp developers can use this tool to write automated tests for | |
2722 | their code. See the ERT info manual for details. | |
2723 | ||
2724 | ** Changes for bidirectional display and editing | |
f1816485 | 2725 | |
041d709f | 2726 | *** New function `current-bidi-paragraph-direction'. |
7d301ae6 | 2727 | This returns the base direction of the paragraph at point. |
041d709f | 2728 | |
041d709f | 2729 | *** New function `bidi-string-mark-left-to-right'. |
dfdb4cad CY |
2730 | Given a string containing characters from right-to-left scripts, this |
2731 | function returns another string which can be safely inserted into a | |
2732 | buffer, such that any following text will be always displayed to the | |
7d301ae6 CY |
2733 | right of that string. (This works by appending an invisible Unicode |
2734 | "LEFT-TO-RIGHT MARK" character if the argument string might need it.) | |
041d709f | 2735 | |
7d301ae6 | 2736 | This is useful when the buffer has overall left-to-right paragraph |
dfdb4cad CY |
2737 | direction and you need to insert a string whose contents are not known |
2738 | in advance, without disrupting the layout of the line. | |
041d709f | 2739 | |
bee0fcef | 2740 | ** Window changes |
dfdb4cad | 2741 | |
c4682d18 MR |
2742 | *** Window tree functions are accessible in Elisp. |
2743 | Functions are provided to return the parent, siblings or child windows | |
2744 | of any window including internal windows (windows not associated with a | |
2745 | buffer) in the window tree. | |
dfdb4cad | 2746 | |
24300f5f CY |
2747 | **** New function `window-valid-p' gives non-nil for live and internal |
2748 | windows. | |
dfdb4cad | 2749 | |
24300f5f | 2750 | **** Window manipulation can deal with internal windows. |
c4682d18 MR |
2751 | Many window handling functions like `split-window', `delete-window', or |
2752 | `delete-other-windows' as well as the window resizing functions can now | |
2753 | act on any window including internal ones. | |
dfdb4cad | 2754 | |
c4682d18 MR |
2755 | *** window-total-height/-width vs window-body-height/-width. |
2756 | The function `window-height' has been renamed to `window-total-height' | |
2757 | and `window-width' has been renamed to `window-body-width'. The old | |
2758 | names are provided as aliases. Two new functions `window-total-width' | |
2759 | and `window-body-height' are provided. | |
dfdb4cad | 2760 | |
c4682d18 MR |
2761 | *** Window parameters specific to window handling functions. |
2762 | For each window you can specify a parameter to override the default | |
2763 | behavior of a number of functions like `split-window', `delete-window' | |
ed6235ea MR |
2764 | and `delete-other-windows'. The variable `ignore-window-parameters' |
2765 | allows to ignore processing such parameters. | |
dfdb4cad | 2766 | |
c4682d18 | 2767 | *** New semantics of third argument of `split-window'. |
c4682d18 MR |
2768 | The third argument of `split-window' has been renamed to SIDE and can be |
2769 | set to any of the values 'below, 'right, 'above, or 'left to make the | |
2770 | new window appear on the corresponding side of the window that shall be | |
2771 | split. Any other value of SIDE will cause `split-window' to split the | |
2772 | window into two side-by-side windows as before. | |
dfdb4cad | 2773 | |
c4682d18 | 2774 | *** Window resizing functions. |
487ffd7a | 2775 | A new standard function for resizing windows called `window-resize' has |
c4682d18 MR |
2776 | been introduced. This and all other functions for resizing windows no |
2777 | longer delete any windows when they become too small. | |
dfdb4cad | 2778 | |
b3c0dbfd MR |
2779 | *** Deleting the selected window now selects the most recently selected |
2780 | live window on that frame instead. | |
dfdb4cad | 2781 | |
c4682d18 MR |
2782 | *** `adjust-window-trailing-edge' adjustments. |
2783 | `adjust-window-trailing-edge' can now deal with fixed-size windows and | |
2784 | is able to resize other windows if a window adjacent to the trailing | |
2785 | edge cannot be shrunk any more. This makes its behavior more similar to | |
2786 | that of Emacs 21 without compromising, however, its inability to delete | |
2787 | windows which was introduced in Emacs 22. | |
dfdb4cad | 2788 | |
c4682d18 MR |
2789 | *** Window-local buffer lists. |
2790 | Windows now have local buffer lists. This means that removing a buffer | |
2791 | from display in a window will preferably show the buffer previously | |
2792 | shown in that window with its previous window-start and window-point | |
2793 | positions. This also means that the same buffer may be automatically | |
2794 | shown twice even if it already appears in another window. | |
dfdb4cad | 2795 | |
bee0fcef CY |
2796 | *** `switch-to-buffer' has a new optional argument FORCE-SAME-WINDOW, |
2797 | which if non-nil requires the buffer to be displayed in the currently | |
2798 | selected window, signaling an error otherwise. If nil, another window | |
2799 | can be used, e.g. if the selected one is strongly dedicated. | |
dfdb4cad | 2800 | |
0a2132ba | 2801 | *** `split-window-vertically' and `split-window-horizontally' renamed |
2d197ffb CY |
2802 | to `split-window-below' and `split-window-right' respectively. |
2803 | The old names are kept as aliases. | |
dfdb4cad | 2804 | |
0a2132ba CY |
2805 | *** Display actions |
2806 | ||
2807 | **** The second arg to `display-buffer' and `pop-to-buffer' is now | |
2808 | named ACTION, and takes a display action of the same form as | |
2809 | `display-buffer-base-action' (see Changes, above). A non-nil, | |
2810 | non-list value is treated specially, as the old meaning. | |
2811 | ||
2812 | **** New variable `display-buffer-overriding-action'. | |
2813 | ||
2814 | **** The procedure of `display-buffer' etc. to choose a window is | |
2815 | determined by combining `display-buffer-overriding-action', | |
2816 | `display-buffer-alist', the ACTION arg, `display-buffer-base-action', | |
2817 | and `display-buffer-fallback-action'. The second and fourth of these | |
2818 | are user-customizable variables. | |
2819 | ||
2820 | See the docstring of `display-buffer' for details. | |
bee0fcef | 2821 | |
20d2304d CY |
2822 | *** New functions `window-state-get' and `window-state-put'. |
2823 | These functions allow to save and restore the state of an arbitrary | |
2824 | frame or window as an Elisp object. | |
2825 | ||
a2a25d24 | 2826 | ** Completion |
041d709f | 2827 | |
7d301ae6 CY |
2828 | *** New variable `completion-extra-properties' used to specify extra |
2829 | properties of the current completion: | |
a2a25d24 SM |
2830 | - :annotate-function, same as the old completion-annotate-function. |
2831 | - :exit-function, function to call after completion took place. | |
2832 | ||
7d301ae6 CY |
2833 | *** Functions on `completion-at-point-functions' can return any of the |
2834 | properties valid for `completion-extra-properties'. | |
a2a25d24 | 2835 | |
7d301ae6 | 2836 | *** `completion-annotate-function' is obsolete. |
a2a25d24 | 2837 | |
620c53a6 SM |
2838 | *** New `metadata' method for completion tables. The metadata thus returned |
2839 | can specify various details of the data returned by `all-completions': | |
2840 | - `category' is the kind of objects returned (e.g., `buffer', `file', ...), | |
2841 | used to select a style in completion-category-overrides. | |
2842 | - `annotation-function' to add annotations in *Completions*. | |
2843 | - `display-sort-function' to specify how to sort entries in *Completions*. | |
2844 | - `cycle-sort-function' to specify how to sort entries when cycling. | |
2845 | ||
7d301ae6 CY |
2846 | *** `minibuffer-local-filename-must-match-map' is not used any more. |
2847 | Instead, the bindings in `minibuffer-local-filename-completion-map' | |
2848 | are combined with `minibuffer-local-must-match-map'. | |
de09aa52 CY |
2849 | |
2850 | *** New variable `completing-read-function' allows overriding the | |
2851 | behavior of `completing-read'. | |
2852 | ||
f042970d | 2853 | ** `glyphless-char-display' can now distinguish between graphical and |
16a43933 CY |
2854 | text terminal display, via a char-table entry that is a cons cell. |
2855 | ||
7d301ae6 | 2856 | ** `pre-command-hook'/`post-command-hook' are not reset to nil on error. |
f6d62986 SM |
2857 | Instead, the offending function is removed. |
2858 | ||
b1f6fa26 CY |
2859 | ** New hook types |
2860 | ||
2861 | *** New function `run-hook-wrapped' for running an abnormal hook by | |
2862 | passing the hook functions as arguments to a "wrapping" function. | |
e7bc51d0 | 2863 | Like `run-hook-with-args-until-success', it stops at the first |
5385447f | 2864 | non-nil return value. |
e7bc51d0 | 2865 | |
b1f6fa26 CY |
2866 | *** New macro `with-wrapper-hook' for running an abnormal hook as a |
2867 | set of "wrapping" filters, similar to around advice. | |
54521c99 GM |
2868 | (A version of this macro was actually added in Emacs 23.2 but was not |
2869 | advertised at the time.) | |
f6d62986 | 2870 | |
0b19b281 | 2871 | ** Debugger changes |
dfdb4cad | 2872 | |
0b19b281 | 2873 | *** New macro `condition-case-unless-debug' (this was actually added in |
1be3ca5a | 2874 | Emacs 23.1 as condition-case-no-debug, but not advertised) |
dfdb4cad | 2875 | |
0b19b281 | 2876 | *** The macro `with-demoted-errors' was added in Emacs 23.1, but not advertised. |
dfdb4cad | 2877 | |
0b19b281 | 2878 | *** Variable `stack-trace-on-error' removed. |
dfdb4cad | 2879 | |
0b19b281 CY |
2880 | *** The debugger can now "continue" from an error, which means it will |
2881 | jump to the error handler as if the debugger had not been invoked | |
2882 | instead of jumping all the way to the top-level. | |
dfdb4cad | 2883 | |
0b19b281 CY |
2884 | *** Set `debug-on-event' to enter the debugger on events like SIGUSR1. |
2885 | This can be useful when `inhibit-quit' is set. | |
d6b1d521 | 2886 | |
953cebf5 | 2887 | ** The new function `server-eval-at' allows evaluation of Lisp forms on |
37576acd | 2888 | named Emacs server instances. |
7deebf1b | 2889 | |
1b9f60cc GM |
2890 | ** `call-process' and `call-process-region' allow a `(:file "file")' spec |
2891 | to redirect STDOUT to a file. | |
7deebf1b | 2892 | |
7d301ae6 CY |
2893 | ** The function `format-time-string' now supports the %N directive, |
2894 | for higher-resolution time stamps. | |
da97a9e6 | 2895 | |
0b19b281 | 2896 | ** New input reading functions |
dfdb4cad | 2897 | |
0b19b281 CY |
2898 | *** New function `read-char-choice' reads a restricted set of |
2899 | characters, discarding any inputs not inside the set. | |
dfdb4cad | 2900 | |
0b19b281 CY |
2901 | *** The command `read-color' now requires a match for a color name |
2902 | or RGB triplet, instead of signaling an error if the user provides | |
2903 | invalid input. | |
dfdb4cad | 2904 | |
0b19b281 | 2905 | **** `facemenu-read-color' is now an alias for `read-color'. |
3ef01959 | 2906 | |
2e288d54 JB |
2907 | ** `image-library-alist' is renamed to `dynamic-library-alist'. |
2908 | The variable is now used to load all kind of supported dynamic libraries, | |
2909 | not just image libraries. The previous name is still available as an | |
2910 | obsolete alias. | |
2911 | ||
0b19b281 | 2912 | ** Syntax parsing changes |
dfdb4cad | 2913 | |
0b19b281 | 2914 | *** New variable `syntax-propertize-function'. |
04e2ce72 | 2915 | This replaces `font-lock-syntactic-keywords' which is now obsolete. |
cf38dd42 SM |
2916 | This allows syntax-table properties to be set independently from font-lock: |
2917 | just call syntax-propertize to make sure the text is propertized. | |
2918 | Together with this new variable come a new hook | |
2919 | syntax-propertize-extend-region-functions, as well as two helper functions: | |
2920 | syntax-propertize-via-font-lock to reuse old font-lock-syntactic-keywords | |
2921 | as-is; and syntax-propertize-rules which provides a new way to specify | |
2922 | syntactic rules. | |
dfdb4cad | 2923 | |
0b19b281 | 2924 | *** Syntax tables support a new "comment style c" additionally to style b. |
a2e5caf7 | 2925 | |
7d301ae6 | 2926 | ** New hook `post-self-insert-hook', run after `self-insert-command'. |
041d709f | 2927 | |
4e2db1fe | 2928 | ** frame-local variables cannot be let-bound any more. |
041d709f | 2929 | |
15de15c6 | 2930 | ** Major and minor mode changes |
dfdb4cad | 2931 | |
0b19b281 CY |
2932 | *** `set-auto-mode' now respects mode: local variables at the end of files, |
2933 | as well as those in the -*- line. | |
dfdb4cad | 2934 | |
15de15c6 CY |
2935 | *** `prog-mode' is a new major mode from which programming modes |
2936 | should be derived. | |
dfdb4cad | 2937 | |
15de15c6 CY |
2938 | **** `prog-mode-hook' can be used to enable features for programming |
2939 | modes, e.g. (add-hook 'prog-mode-hook 'flyspell-prog-mode) to enable | |
2940 | on-the-fly spell checking for comments and strings. | |
dfdb4cad | 2941 | |
14dd22d2 JB |
2942 | **** New minor modes `prettify-symbols-mode' and |
2943 | `global-prettify-symbols-mode' let the user enable symbol | |
2944 | prettification (replacing a string like "lambda" with the Greek lambda | |
2945 | character). | |
398b4366 | 2946 | |
15de15c6 CY |
2947 | *** New hook `change-major-mode-after-body-hook', run by |
2948 | `run-mode-hooks' just before any other mode hooks. | |
dfdb4cad | 2949 | |
7a9a2fc6 GM |
2950 | *** Enabled globalized minor modes can be disabled in specific major modes. |
2951 | If the global mode is global-FOO-mode, then run (FOO-mode -1) in the | |
2952 | major mode's hook, where FOO-mode toggles the mode on a per-buffer basis. | |
dfdb4cad | 2953 | |
feb8a83a | 2954 | *** `define-minor-mode' accepts new keywords :variable, :after-hook. |
f44379e7 | 2955 | |
7d301ae6 CY |
2956 | ** File-handling changes |
2957 | ||
7d301ae6 | 2958 | *** `delete-file' and `delete-directory' now accept optional arg TRASH. |
f1a5d776 CY |
2959 | Trashing is performed if TRASH and `delete-by-moving-to-trash' are |
2960 | both non-nil. Interactively, TRASH defaults to t, unless a prefix | |
2961 | argument is supplied (see Trash changes, above). | |
53967e09 | 2962 | |
7d301ae6 | 2963 | *** New file predicates: `file-equal-p', `file-in-directory-p'. |
ec70a47d | 2964 | |
4039c786 CY |
2965 | ** Tool-bars can display separators. |
2966 | Tool-bar separators are handled like menu separators in menu-bar maps, | |
94975270 | 2967 | i.e. via menu entries of the form `(menu-item "--")'. |
9317e499 | 2968 | |
00fe2df1 JL |
2969 | ** Image API |
2970 | ||
18af70d0 CY |
2971 | *** Animated images support (currently animated gifs only). |
2972 | ||
2973 | **** `image-animated-p' returns non-nil if an image can be animated. | |
2974 | ||
2975 | **** `image-animate' animates a supplied image spec. | |
2976 | ||
2977 | **** `image-animate-timer' returns the timer object for an image that | |
2978 | is being animated. | |
00fe2df1 | 2979 | |
7cb76fe0 GM |
2980 | *** `image-extension-data' has been renamed to `image-metadata'. |
2981 | The old name is an obsolete alias to the new one. | |
1546c559 | 2982 | |
b4ac6e8c GM |
2983 | *** Image mode can view any image type that ImageMagick supports. |
2984 | This requires Emacs to be built with ImageMagick support. | |
7d301ae6 CY |
2985 | |
2986 | **** New function `imagemagick-types', defined if ImageMagick support | |
2987 | is enabled, returns a list of image file extensions that your | |
2988 | ImageMagick installation supports. | |
2989 | ||
2990 | **** New function `imagemagick-register-types' enables ImageMagick | |
2991 | image types in Image mode and in `create-image' and other helper | |
2992 | functions. | |
2993 | ||
2994 | **** New option `imagemagick-types-inhibit' excludes certain | |
2995 | ImageMagick image types from `imagemagick-register-types'. | |
2996 | ||
7d301ae6 CY |
2997 | **** With ImageMagick support, there are extra Image mode commands to |
2998 | resize and rotate images: `image-transform-fit-to-height', | |
2999 | `image-transform-fit-to-width', `image-transform-set-rotation', and | |
3000 | `image-transform-set-scale'. | |
041d709f | 3001 | |
7d301ae6 CY |
3002 | ** `compose-mail' now accepts an optional 8th arg, RETURN-ACTION, and |
3003 | passes it to the mail user agent function. This argument specifies an | |
3004 | action for returning to the caller after finishing with the mail. For | |
3005 | example, this is used by Rmail to optionally delete a mail window. | |
b4ac6e8c | 3006 | |
71c17aec | 3007 | ** XML and HTML parsing |
483ab230 CY |
3008 | If Emacs is compiled with libxml2 support, there are two new |
3009 | functions: `libxml-parse-html-region' (which parses "real world" HTML) | |
3010 | and `libxml-parse-xml-region' (which parses XML). Both return an | |
3011 | Emacs Lisp parse tree. | |
4b9832a6 | 3012 | |
7d301ae6 | 3013 | ** Networking and encryption changes |
e2574f2c | 3014 | |
7d301ae6 CY |
3015 | *** `open-network-stream' can now be used to open an encrypted stream. |
3016 | It now accepts an optional `:type' parameter for initiating a TLS | |
3017 | connection, directly or via STARTTLS. To do STARTTLS, additional | |
3018 | parameters (`:end-of-command', `:success', `:capabilities-command') | |
3019 | must also be supplied. | |
3020 | ||
3021 | *** New library gnutls.el. | |
dfdb4cad CY |
3022 | The new function `gnutls-available-p' returns non-nil if Emacs is |
3023 | built with GnuTLS support. The main entry points are | |
3024 | `open-gnutls-stream' and `gnutls-negotiate'. It's easiest to use | |
3025 | these functions through `open-network-stream', because that can | |
7d301ae6 CY |
3026 | upgrade connections through STARTTLS opportunistically or use plain |
3027 | SSL, depending on your needs. For debugging, set `gnutls-log-level' | |
3028 | greater than 0. | |
3029 | ||
7d301ae6 CY |
3030 | *** New primitive `secure-hash' that supports many secure hash algorithms: |
3031 | md5, sha1, sha2, sha224, sha256, sha384, and sha512. The lisp library | |
3032 | sha1.el has been removed. The `sha1' feature is provided by default. | |
71c17aec | 3033 | |
a6020335 MH |
3034 | ** Isearch |
3035 | ||
3036 | *** New hook `isearch-update-post-hook' that runs in `isearch-update'. | |
3037 | ||
9326ba26 CY |
3038 | ** Progress reporters can now "spin". |
3039 | The MIN-VALUE and MAX-VALUE arguments of `make-progress-reporter' can | |
3040 | now be nil, or omitted. This makes a "non-numeric" reporter. Each | |
3041 | time you call `progress-reporter-update' on that progress reporter, | |
3042 | with a nil or omitted VALUE argument, the reporter message is | |
3043 | displayed with a "spinning bar". | |
3044 | ||
3e214b50 JB |
3045 | ** New variable `revert-buffer-in-progress-p' is true while a buffer is |
3046 | being reverted, even if the buffer has a local `revert-buffer-function'. | |
3047 | ||
001bf877 GM |
3048 | ** New variables `delayed-warnings-list' and `delayed-warnings-hook'. |
3049 | If delayed-warnings-list is non-nil, the command loop calls | |
7d301ae6 CY |
3050 | `delayed-warnings-hook' after `post-command-hook'. At present, this |
3051 | is only used by Emacs on some platforms to display warnings during | |
3052 | startup, which might otherwise not be noticed. This uses the | |
3053 | functions `display-delayed-warnings' and `collapse-delayed-warnings'. | |
001bf877 | 3054 | |
6420d28b CY |
3055 | ** rx.el has a new `group-n' construct for explicitly numbered groups. |
3056 | ||
dac86404 GM |
3057 | ** New function `make-composed-keymap' that constructs a new keymap |
3058 | from multiple input maps. You can use this to make a keymap that | |
3059 | inherits from multiple maps, eg: | |
3060 | (set-keymap-parent newmap (make-composed-keymap othermap parent)) | |
43dc9f5b | 3061 | |
c8f6ec5c GM |
3062 | ** New function `string-prefix-p'. |
3063 | (This was actually added in Emacs 23.2 but was not advertised at the time.) | |
3064 | ||
27f7ef2f | 3065 | ** New reader macro ## that stands for the empty symbol. |
43dc9f5b AS |
3066 | This means that the empty symbol can now be read back. Also, #: by itself |
3067 | (when not immediately followed by a possible symbol character) stands for | |
3068 | an empty uninterned symbol. | |
041d709f | 3069 | |
fead402d CY |
3070 | ** New math functions `isnan', `copysign', `frexp', `ldexp'. |
3071 | ||
7d301ae6 | 3072 | ** The following functions and variables are obsolete: |
041d709f | 3073 | |
05f77e38 GM |
3074 | *** `tooltip-use-echo-area' is obsolete. |
3075 | Rather than setting this to t, disable Tooltip mode instead. | |
3076 | ||
041d709f CY |
3077 | *** buffer-substring-filters is obsolete. |
3078 | Use `filter-buffer-substring-functions' instead. | |
3079 | ||
3080 | *** `byte-compile-disable-print-circle' is obsolete. | |
3081 | ||
3082 | *** `deferred-action-list' and `deferred-action-function' are obsolete. | |
f160676e GM |
3083 | Use `post-command-hook' instead. |
3084 | ||
67e729a5 CY |
3085 | *** `font-lock-maximum-size' is obsolete. |
3086 | ||
eb199145 | 3087 | \f |
93e0bed6 | 3088 | * Changes in Emacs 24.1 on Non-Free Operating Systems |
d53a60a6 | 3089 | |
7a22e700 | 3090 | ** On MS Windows, Emacs warns when using the obsolete init file _emacs, |
a2f0118c GM |
3091 | and also when HOME is set to C:\ by default. |
3092 | ||
7a22e700 | 3093 | ** New configure.bat options |
04779484 | 3094 | |
7a22e700 | 3095 | *** --enable-checking builds Emacs with extra runtime checks. |
e3aef5c6 | 3096 | |
7a22e700 | 3097 | *** --distfiles specifies files to be included in binary distribution. |
e2574f2c | 3098 | |
7a22e700 OK |
3099 | *** --without-gnutls disables automatic GnuTLS detection. |
3100 | ||
a0d363f4 | 3101 | *** --lib for general library linkage, works with the USER_LIBS build variable. |
e2574f2c | 3102 | |
0a19a6f8 | 3103 | ** New make target `dist' to create binary distribution for MS Windows. |
e3aef5c6 | 3104 | |
1f5e1a16 GM |
3105 | ** The Lisp function `w32-default-color-map' is now obsolete. |
3106 | (It is only used internally in the Emacs C code.) | |
5430d399 | 3107 | |
1f5e1a16 GM |
3108 | ** Customize ns-auto-hide-menu-bar to have the menu-bar hidden, but |
3109 | reappear on mouse-over. (Requires OS X 10.6 or later.) | |
04e2ce72 | 3110 | |
ad7c802c CY |
3111 | ** On Mac OS X, dragging a file into Emacs visits the file, like on |
3112 | other platforms, rather than inserting its contents into the buffer. | |
3113 | ||
05197f40 | 3114 | \f |
a933dad1 | 3115 | ---------------------------------------------------------------------- |
5b87ad55 | 3116 | This file is part of GNU Emacs. |
a933dad1 | 3117 | |
ab73e885 | 3118 | GNU Emacs is free software: you can redistribute it and/or modify |
5b87ad55 | 3119 | it under the terms of the GNU General Public License as published by |
ab73e885 GM |
3120 | the Free Software Foundation, either version 3 of the License, or |
3121 | (at your option) any later version. | |
5b87ad55 GM |
3122 | |
3123 | GNU Emacs is distributed in the hope that it will be useful, | |
3124 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
3125 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
3126 | GNU General Public License for more details. | |
a933dad1 | 3127 | |
5b87ad55 | 3128 | You should have received a copy of the GNU General Public License |
ab73e885 | 3129 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
a933dad1 | 3130 | |
05197f40 | 3131 | \f |
a933dad1 DL |
3132 | Local variables: |
3133 | mode: outline | |
3134 | paragraph-separate: "[ \f]*$" | |
3135 | end: |