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