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29b7722a | 1 | GNU Emacs NEWS -- history of user-visible changes. |
5b87ad55 | 2 | |
49f70d46 | 3 | Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012 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 | ||
0bfd685e | 9 | This file is about changes in Emacs version 23. |
9a21d88b | 10 | |
0bfd685e GM |
11 | See files NEWS.22, NEWS.21, NEWS.20, NEWS.19, NEWS.18, and NEWS.1-17 |
12 | for changes in older Emacs versions. | |
9a21d88b KS |
13 | |
14 | You can narrow news to a specific version by calling `view-emacs-news' | |
15 | with a prefix argument or by typing C-u C-h C-n. | |
3f7194ed | 16 | |
adce950d | 17 | \f |
c3fae8e7 CY |
18 | * Installation Changes in Emacs 23.4 |
19 | ||
20 | ** The MS-Windows build prefers libpng version 1.14 or later. | |
21 | Versions of libpng before 1.14 had security issues, so we now | |
22 | recommend to use version 1.14 or later. Precompiled Windows binaries | |
23 | require version 1.14 or later. See README.W32 and nt/INSTALL for | |
24 | details and pointers to URLs where the latest libpng can be | |
25 | downloaded. | |
26 | ||
3f0ec69d CY |
27 | * Changes in Specialized Modes and Packages in Emacs 23.4 |
28 | ||
29 | ** EDE | |
30 | ||
31 | *** New variable `ede-project-directories'. | |
32 | EDE now refuses to automatically load a project file (Project.ede) | |
33 | unless the file is in one of the directories specified by this | |
34 | variable. This reduces the risk of inadvertently loading malicious | |
35 | project files. The commands `M-x ede-new' and `M-x ede' now offer to | |
36 | save directories to `ede-project-directories'. | |
37 | ||
9bb095f4 EZ |
38 | * Changes in Emacs 23.4 on non-free operating systems |
39 | ||
40 | ** The MS-Windows port can now use more than 500MB of heap. | |
41 | Depending on the available virtual memory, Emacs on Windows can now | |
c3fae8e7 | 42 | have up to 2GB of heap space. This allows, e.g., visiting several |
9bb095f4 EZ |
43 | large (> 256MB) files in the same session. |
44 | ||
45 | \f | |
46 | * Installation Changes in Emacs 23.3 | |
47 | ||
48 | ** New configure option --with-crt-dir specifies the location of your | |
49 | crt*.o files, if they are in a non-standard location. This is only | |
50 | used on x86-64 and s390x GNU/Linux architectures. | |
51 | ||
c3bb441d SM |
52 | * Changes in Emacs 23.3 |
53 | ||
b024d9f0 MD |
54 | ** The last-resort backup file `%backup%~' is now written to |
55 | `user-emacs-directory', instead of the user's home directory. | |
56 | ||
a41c8660 CY |
57 | ** If Emacs creates `user-emacs-directory', that directory's |
58 | permissions are now set to rwx------, ignoring the umask. | |
c3bb441d SM |
59 | |
60 | \f | |
61 | * Changes in Specialized Modes and Packages in Emacs 23.3 | |
62 | ||
a41c8660 CY |
63 | ** Calendar and diary |
64 | ||
65 | *** The appt-add command takes an optional argument, the warning time. | |
95344a11 GM |
66 | This can be used in place of the default appt-message-warning-time. |
67 | ||
a41c8660 CY |
68 | ** Python mode |
69 | ||
70 | *** You can allow inferior Python processes to load modules from the | |
1d851570 CY |
71 | current directory by setting `python-remove-cwd-from-path' to nil. |
72 | ||
a41c8660 CY |
73 | ** Rmail |
74 | ||
75 | *** The default value of `rmail-enable-mime' is now t. Rmail decodes | |
76 | MIME contents automatically. You can customize the variable | |
77 | `rmail-enable-mime' back to `nil' to disable this automatic MIME | |
78 | decoding. | |
79 | ||
80 | *** The command `rmail-mime' change the displaying of a MIME message | |
81 | between decoded presentation form and raw data if `rmail-enable-mime' | |
82 | is non-nil. And, with prefix argument, it change only the displaying | |
83 | of the MIME entity at point. | |
84 | ||
85 | *** The new command `rmail-mime-next-item' (bound to TAB) moves point | |
86 | to the next item of MIME message. | |
87 | ||
88 | *** The new command `rmail-mime-previous-item' (bound to backtab) moves | |
89 | point to the previous item of MIME message. | |
90 | ||
91 | *** The new command `rmail-mime-toggle-hidden' (RET) hide or show the | |
92 | body of the MIME entity at point. | |
93 | ||
98cfec0d CY |
94 | ** VC and related modes |
95 | ||
1aaae3f3 CY |
96 | *** New VC command `vc-log-incoming', bound to `C-x v I'. |
97 | This shows a log of changes to be received with a pull operation. | |
98 | For Git, this runs "git fetch" to make the necessary data available | |
99 | locally; this requires version 1.7 or newer. | |
98cfec0d | 100 | |
1aaae3f3 CY |
101 | *** New VC command `vc-log-outgoing', bound to `C-x v O'. |
102 | This shows a log of changes to be sent in the next commit. | |
98cfec0d | 103 | |
1aaae3f3 | 104 | *** New VC command vc-find-conflicted-file. |
98cfec0d CY |
105 | |
106 | *** The 'g' key in VC diff, log, log-incoming and log-outgoing buffers | |
107 | reruns the corresponding VC command to compute an up to date version | |
108 | of the buffer. | |
109 | ||
110 | *** vc-dir for Bzr supports viewing shelve contents and shelving snapshots. | |
111 | ||
112 | *** Special markup can be added to log-edit buffers. | |
1aaae3f3 CY |
113 | You can add headers specifying additional information to be supplied |
114 | to the version control system. For example: | |
115 | ||
116 | Author: J. R. Hacker <jrh@example.com> | |
117 | Fixes: 4204 | |
118 | Actual text of log entry... | |
98cfec0d | 119 | |
1aaae3f3 CY |
120 | Bazaar recognizes the headers "Author", "Date" and "Fixes". |
121 | Git, Mercurial, and Monotone recognize "Author" and "Date". | |
122 | Any unknown header is left as is in the message, so it is not lost. | |
98cfec0d | 123 | |
fdb893e7 GM |
124 | ** Obsolete packages |
125 | ||
fdb893e7 GM |
126 | *** lmenu.el and cl-compat.el are now obsolete. |
127 | ||
c3bb441d SM |
128 | \f |
129 | * New Modes and Packages in Emacs 23.3 | |
ec8a6295 | 130 | |
7f925a67 SM |
131 | ** smie.el is a generic navigation and indentation engine. |
132 | It takes a simple BNF description of the grammar, and provides both | |
133 | sexp-style navigation (jumping over begin..end pairs) as well as | |
134 | indentation, which can be adjusted via ad-hoc indentation rules. | |
ec8a6295 | 135 | |
c3bb441d SM |
136 | \f |
137 | * Incompatible Lisp Changes in Emacs 23.3 | |
138 | ||
545aad4c EZ |
139 | ** posn-col-row now excludes the header line from the row count |
140 | If the frame has a header line, posn-col-row will count row numbers | |
141 | starting from the first line of text below the header line. | |
142 | ||
c3bb441d SM |
143 | \f |
144 | * Lisp changes in Emacs 23.3 | |
145 | ||
9e0d4f9e SM |
146 | ** `e' and `pi' are now called `float-e' and `float-pi'. |
147 | The old names are obsolete. | |
ec8a6295 | 148 | |
ec8a6295 CY |
149 | ** The use of unintern without an obarray arg is now obsolete. |
150 | ||
ec8a6295 CY |
151 | ** The function `princ-list' is now obsolete. |
152 | ||
ec8a6295 CY |
153 | ** The yank-handler argument to kill-region and friends is now obsolete. |
154 | ||
c3bb441d SM |
155 | ** New function byte-to-string, like char-to-string but for bytes. |
156 | ||
157 | \f | |
158 | * Changes in Emacs 23.3 on non-free operating systems | |
159 | ||
ec8a6295 CY |
160 | ** The nextstep port can have different modifiers for the left and right |
161 | alt/option key by customizing the value for ns-right-alternate-modifier. | |
162 | ||
c3bb441d | 163 | \f |
aa701ce8 CY |
164 | * Installation Changes in Emacs 23.2 |
165 | ||
2233cfb0 | 166 | ** New configure options for Emacs developers. |
aa701ce8 | 167 | These are not new features; only the configure flags are new. |
2233cfb0 | 168 | |
aa701ce8 CY |
169 | *** --enable-profiling builds Emacs with profiling enabled. |
170 | This might not work on all platforms. | |
2233cfb0 | 171 | |
aa701ce8 CY |
172 | *** --enable-checking[=OPTIONS] builds emacs with extra runtime checks. |
173 | ||
45980501 GM |
174 | ** `make install' now consistently ignores umask, creating a |
175 | world-readable install. | |
176 | ||
26e533e2 | 177 | ** Emacs compiles with Gconf support, if it is detected. |
96639030 | 178 | Use the configure option --without-gconf to disable this. |
8ecd59ca | 179 | This is used by the `font-use-system-font' feature (see below). |
96639030 | 180 | |
f9245b5d | 181 | * Startup Changes in Emacs 23.2 |
2233cfb0 | 182 | |
96639030 CY |
183 | ** The command-line option -Q (--quick) also inhibits loading X resources. |
184 | However, if Emacs is compiled with the Lucid or Motif toolkit, X | |
185 | resource settings for the graphical widgets are still applied. | |
186 | On Windows, the -Q option causes Emacs to ignore Registry settings, | |
187 | but environment variables set on the Registry are still honored. | |
2233cfb0 | 188 | |
f9245b5d CY |
189 | *** The new variable `inhibit-x-resources' shows whether X resources |
190 | were loaded. | |
8686ac71 | 191 | |
96639030 CY |
192 | ** New command-line option -mm (--maximized) maximizes the initial frame. |
193 | ||
f9245b5d | 194 | * Changes in Emacs 23.2 |
fcb68f70 | 195 | |
96639030 | 196 | ** The maximum size of buffers (and the largest fixnum) is doubled. |
2de9f71c SM |
197 | On typical 32bit systems, buffers can now be up to 512MB. |
198 | ||
96639030 CY |
199 | ** The default value of `trash-directory' is now nil. |
200 | This means that `move-file-to-trash' trashes files according to | |
d63a01ef CY |
201 | freedesktop.org specifications, the same method used by the Gnome, |
202 | KDE, and XFCE desktops. (This change has no effect on Windows, which | |
203 | uses `system-move-file-to-trash' for trashing.) | |
204 | ||
e044e4fc | 205 | ** The pointer now becomes invisible when typing. |
96639030 | 206 | Customize `make-pointer-invisible' to disable this feature. |
e044e4fc | 207 | |
96639030 | 208 | ** Font changes |
2233cfb0 | 209 | |
96639030 CY |
210 | *** Emacs can use the system default monospaced font in Gnome. |
211 | To enable this feature, set `font-use-system-font' to non-nil (it is | |
212 | nil by default). If the system default changes, Emacs changes also. | |
213 | This feature requires Gconf support, which is automatically included | |
214 | at compile-time if configure detects the gconf libraries (you can | |
215 | disable this with the configure option --without-gconf). | |
2233cfb0 | 216 | |
96639030 CY |
217 | *** On X11, Emacs reacts to Xft changes made by configuration tools, |
218 | via the XSETTINGS mechanism. This includes antialias, hinting, | |
219 | hintstyle, RGBA, DPI and lcdfilter changes. | |
f4fcbe98 | 220 | |
96639030 CY |
221 | ** Killing a buffer with a running process now asks for confirmation. |
222 | To remove this query, remove `process-kill-buffer-query-function' from | |
223 | `kill-buffer-query-functions', or set the appropriate process flag | |
224 | with `set-process-query-on-exit-flag'. | |
100b6355 | 225 | |
34481ea1 | 226 | ** File-local variable changes |
2233cfb0 | 227 | |
34481ea1 CY |
228 | *** Specifying a minor mode as a local variables enables that mode, |
229 | unconditionally. The previous behavior, toggling the mode, was | |
230 | neither reliable nor generally desirable. | |
231 | ||
4d4e9522 | 232 | *** There are new commands for adding and removing file-local variables: |
34481ea1 CY |
233 | `add-file-local-variable', `delete-file-local-variable', |
234 | `add-file-local-variable-prop-line', and | |
235 | `delete-file-local-variable-prop-line'. | |
236 | ||
4d4e9522 | 237 | *** There are new commands for adding and removing directory-local variables, |
34481ea1 CY |
238 | and copying them to and from file-local variable lists: |
239 | `add-dir-local-variable', `delete-dir-local-variable', | |
240 | `copy-dir-locals-to-file-locals', | |
82941b5e JL |
241 | `copy-dir-locals-to-file-locals-prop-line' and |
242 | `copy-file-locals-to-dir-locals'. | |
243 | ||
96639030 | 244 | ** Internationalization changes |
2233cfb0 | 245 | |
96639030 CY |
246 | *** Unibyte sessions are now considered obsolete. |
247 | This refers to the EMACS_UNIBYTE environment variable as well as the | |
248 | --unibyte, --multibyte, --no-multibyte, and --no-unibyte command line | |
249 | arguments. Customizing enable-multibyte-characters and setting | |
250 | default-enable-multibyte-characters are also deprecated. | |
2233cfb0 | 251 | |
96639030 CY |
252 | *** New coding system `utf-8-hfs'. |
253 | This is suitable for default-file-name-coding-system on Mac OS X; see | |
254 | international/ucs-normalize.el. | |
255 | ||
256 | ** Function arguments in *Help* buffers are now shown in upper-case. | |
257 | Customize `help-downcase-arguments' to t to show them in lower-case. | |
3c736e33 | 258 | |
2233cfb0 CY |
259 | ** New command `async-shell-command', bound globally to `M-&'. |
260 | This executes the command asynchronously, similar to calling `M-!' and | |
261 | manually adding an ampersand to the end of the command. With `M-&', | |
262 | you don't need the ampersand. The output appears in the buffer | |
263 | `*Async Shell Command*'. | |
264 | ||
265 | ** When running in a new enough xterm (newer than version 242), Emacs | |
266 | asks xterm what the background color is and it sets up faces | |
267 | accordingly for a dark background if needed (the current default is to | |
268 | consider the background light). | |
269 | ||
05197f40 | 270 | \f |
0badeef4 GM |
271 | * Editing Changes in Emacs 23.2 |
272 | ||
96639030 | 273 | ** Kill-ring and selection changes |
2233cfb0 | 274 | |
f9245b5d CY |
275 | *** If `select-active-regions' is t, any active region automatically |
276 | becomes the primary selection (for interaction with other window | |
277 | applications). If you enable this, you might want to bind | |
278 | `mouse-yank-primary' to Mouse-2. | |
2233cfb0 | 279 | |
96639030 CY |
280 | *** When `save-interprogram-paste-before-kill' is non-nil, the kill |
281 | commands save the interprogram-paste selection into the kill ring | |
282 | before doing anything else. This avoids losing the selection. | |
2233cfb0 | 283 | |
96639030 CY |
284 | *** When `kill-do-not-save-duplicates' is non-nil, identical |
285 | subsequent kills are not duplicated in the `kill-ring'. | |
f9245b5d | 286 | |
96639030 | 287 | ** Completion changes |
0badeef4 | 288 | |
51ef56c4 | 289 | *** The new command `completion-at-point' provides mode-sensitive completion. |
2233cfb0 | 290 | |
51ef56c4 | 291 | *** tab-always-indent set to `complete' lets TAB do completion as well. |
2233cfb0 | 292 | |
96639030 | 293 | *** The new completion-style `initials' is available. |
f9245b5d | 294 | For instance, this can complete M-x lch to list-command-history. |
2233cfb0 | 295 | |
96639030 CY |
296 | *** The new variable `completions-format' determines how completions |
297 | are displayed in the *Completions* buffer. If you set it to | |
298 | `vertical', completions are sorted vertically in columns. | |
299 | ||
96639030 | 300 | ** The default value of `blink-matching-paren-distance' is increased. |
40e93a2c | 301 | |
96639030 CY |
302 | ** M-n provides more default values in the minibuffer for commands |
303 | that read file names. These include the file name at point (when ffap | |
304 | is loaded without ffap-bindings), the file name on the current line | |
305 | (in Dired buffers), and the directory names of adjacent Dired windows | |
306 | (for Dired commands that operate on several directories, such as copy, | |
307 | rename, or diff). | |
7d371eac | 308 | |
96639030 CY |
309 | ** M-r is bound to the new `move-to-window-line-top-bottom'. |
310 | This moves point to the window center, top and bottom on successive | |
311 | invocations, in the same spirit as the C-l (recenter-top-bottom) | |
312 | command. | |
216349f8 | 313 | |
96639030 CY |
314 | ** The new variable `recenter-positions' determines the default |
315 | cycling order of C-l (`recenter-top-bottom'). | |
0116abbd | 316 | |
26e533e2 CY |
317 | ** The abbrevs file is now a file named abbrev_defs in |
318 | user-emacs-directory; but the old location, ~/.abbrev_defs, is used if | |
319 | that file exists. | |
2233cfb0 | 320 | |
0badeef4 | 321 | \f |
009c963c MA |
322 | * Changes in Specialized Modes and Packages in Emacs 23.2 |
323 | ||
1e7d4475 SM |
324 | ** The bookmark menu has a narrowing search via bookmark-bmenu-search. |
325 | ||
26e533e2 | 326 | ** Calc |
2233cfb0 | 327 | |
26e533e2 CY |
328 | *** The Calc settings file is now a file named calc.el in |
329 | user-emacs-directory; but the old location, ~/.calc.el, is used if | |
330 | that file exists. | |
2233cfb0 | 331 | |
26e533e2 CY |
332 | *** Graphing commands (`g f' etc.) now work on MS-Windows, if you have |
333 | the native Windows port of Gnuplot version 3.8 or later installed. | |
d10c031a | 334 | |
f9245b5d | 335 | ** Calendar and diary |
2233cfb0 | 336 | |
f9245b5d CY |
337 | *** Fancy diary display is now the default. |
338 | If you prefer the simple display, customize `diary-display-function'. | |
2233cfb0 | 339 | |
f9245b5d | 340 | *** The diary's fancy display now enables view-mode. |
2233cfb0 | 341 | |
f9245b5d CY |
342 | *** The command `calendar-current-date' accepts an optional argument |
343 | giving an offset from today. | |
344 | ||
345 | ** Desktop | |
2233cfb0 | 346 | |
f9245b5d CY |
347 | *** The default value for `desktop-buffers-not-to-save' is nil. |
348 | This means Desktop will try restoring all buffers, when you restart | |
349 | your Emacs session. Also, `desktop-buffers-not-to-save' is only | |
350 | effective for buffers that have no associated file. If you want to | |
351 | exempt buffers that do correspond to files, customize the value of | |
352 | `desktop-files-not-to-save' instead. | |
353 | ||
2b3489a7 | 354 | ** Dired |
2233cfb0 | 355 | |
4102856c CY |
356 | *** The new variable `dired-auto-revert-buffer', if non-nil, causes |
357 | Dired buffers to be reverted automatically on revisiting them. | |
2b3489a7 | 358 | |
aefcadb6 | 359 | ** DocView |
2233cfb0 | 360 | |
0a745733 | 361 | *** When `doc-view-continuous' is non-nil, scrolling a line |
aefcadb6 JL |
362 | on the page edge advances to the next/previous page. |
363 | ||
2233cfb0 CY |
364 | ** Elint |
365 | ||
366 | *** Elint now uses compilation-mode. | |
367 | ||
368 | *** Elint can now scan individual files and whole directories, | |
369 | and can be run in batch mode. | |
370 | ||
371 | *** Elint does a more thorough initialization, and recognizes more built-in | |
372 | functions and variables. Customize `elint-scan-preloaded' if you want | |
373 | to sacrifice some accuracy for a faster startup. | |
374 | ||
375 | *** Elint attempts some basic understanding of featurep and (f)boundp tests. | |
376 | ||
377 | *** Customize `elint-ignored-warnings' to suppress some warnings. | |
378 | ||
49f073bd | 379 | ** GDB-UI |
70e013b4 | 380 | |
da14b7ca | 381 | *** Toolbar functionality for reverse debugging. Display of STL |
f492f32f | 382 | collections as watch expressions. These features require GDB 7.0 or later. |
ee047ec4 | 383 | |
a601d313 | 384 | ** Grep |
2233cfb0 | 385 | |
26e533e2 | 386 | *** A new command `zrgrep' searches recursively in gzipped files. |
a601d313 | 387 | |
9f18817f JL |
388 | ** Info |
389 | ||
390 | *** The new command `Info-virtual-index' bound to "I" displays a menu of | |
391 | matched topics found in the index. | |
392 | ||
f38fd73d JL |
393 | *** The new command `info-finder' replaces finder.el with a virtual Info |
394 | manual that generates an Info file which gives the same information | |
395 | through a menu structure. | |
396 | ||
2233cfb0 CY |
397 | ** LaTeX mode now provides completion (via completion-at-point). |
398 | ||
cec84921 CY |
399 | ** Message mode is now the default mode for composing mail. |
400 | ||
401 | The default for `mail-user-agent' is now message-user-agent, so the | |
402 | C-x m (`compose-mail') command uses Message mode instead of Mail mode. | |
403 | ||
404 | Message mode has been included in Emacs, as part of the Gnus package, | |
405 | for several years. It provides several features that are absent in | |
406 | Mail mode, such as MIME handling. | |
407 | ||
408 | *** If the user has not customized mail-user-agent, `compose-mail' | |
409 | checks for Mail mode customizations, and issues a warning if these | |
410 | customizations are found. This alerts users who may otherwise be | |
411 | unaware that their mail configuration has changed. | |
412 | ||
413 | To disable this check, set compose-mail-user-agent-warnings to nil. | |
414 | ||
c5347676 GM |
415 | ** The default value of mail-interactive is t, since Emacs 23.1. |
416 | (This was not announced at the time.) It means that when sending mail, | |
417 | Emacs will wait for the process sending mail to return. If you | |
418 | experience delays when sending mail, you may wish to set this to nil. | |
419 | ||
93bff749 CY |
420 | ** nXML mode is now the default for editing XML files. |
421 | ||
2233cfb0 CY |
422 | ** pcomplete provides a new command `pcomplete-std-completion' which |
423 | is similar to `pcomplete' but using the standard completion UI code. | |
424 | ||
f2608df3 | 425 | ** Shell (and other comint modes) |
2233cfb0 | 426 | |
f2608df3 | 427 | *** M-s is no longer bound to `comint-next-matching-input'. |
2233cfb0 | 428 | |
f2608df3 CY |
429 | *** M-r is now bound to `comint-history-isearch-backward-regexp'. |
430 | This starts an incremental search of the comint/shell input history. | |
2233cfb0 | 431 | |
f2608df3 | 432 | *** ansi-color is now enabled by default in Shell mode. |
93bff749 CY |
433 | To disable it, set ansi-color-for-comint-mode to nil. |
434 | ||
93bff749 | 435 | ** Tramp |
2233cfb0 | 436 | |
93bff749 CY |
437 | *** New connection methods "rsyncc", "imap" and "imaps". |
438 | On systems which support GVFS-Fuse, Tramp offers also the new | |
439 | connection methods "dav", "davs", "obex" and "synce". | |
8525a1d6 | 440 | |
3c3bf6ce | 441 | ** VC and related modes |
2233cfb0 | 442 | |
b4e813ca DN |
443 | *** When using C-x v v or C-x v i on a unregistered file that is in a |
444 | directory not controlled by any VCS, ask the user what VC backend to | |
445 | use to create a repository, create a new repository and register the | |
446 | file. | |
2233cfb0 | 447 | |
c0c035fa CY |
448 | *** New command `vc-root-print-log', bound to `C-x v L'. |
449 | This displays a `*vc-change-log*' buffer showing the history of the | |
450 | version-controlled directory tree as a whole. | |
2233cfb0 | 451 | |
ef7b27ef CY |
452 | *** New command `vc-root-diff', bound to `C-x v D'. |
453 | This is similar to `vc-diff', but compares the entire directory tree | |
454 | of the current VC directory with its working revision. | |
2233cfb0 | 455 | |
c0c035fa CY |
456 | *** `C-x v l' and `C-x v L' do not show the full log by default. |
457 | The number of entries shown can be chosen interactively with a prefix | |
458 | argument, or by customizing vc-log-show-limit. The `*vc-change-log*' | |
459 | buffer now contains buttons at the end of the buffer, which can be | |
460 | used to increase the number of entries shown. RCS, SCCS, and CVS do | |
461 | not support this feature. | |
2233cfb0 | 462 | |
d1e4c403 DN |
463 | *** vc-annotate supports annotations through file copies and renames, |
464 | it displays the old names for the files and it can show logs/diffs for | |
465 | the corresponding lines. Currently only Git and Mercurial take | |
466 | advantage of this feature. | |
2233cfb0 | 467 | |
662c5698 DN |
468 | *** The log command in vc-annotate can display a single log entry |
469 | instead of redisplaying the full log. The RCS, CVS and SCCS VC | |
470 | backends do not support this. | |
2233cfb0 | 471 | |
3c3bf6ce | 472 | *** When a file is not found, VC will not try to check it out of RCS anymore. |
2233cfb0 | 473 | |
c0c035fa | 474 | *** Diff and log operations can be used from Dired buffers. |
8de724f3 | 475 | |
e05b6a4e DN |
476 | *** vc-git changes |
477 | ||
46a4f27f GM |
478 | **** The short log format for git makes use of the graph display, |
479 | so it's not supported on git versions earlier than 1.5.6. | |
480 | ||
46a4f27f GM |
481 | **** vc-dir uses the --relative option of git, and so requires at least |
482 | git version 1.5.5. | |
fcc70817 | 483 | |
f492f32f GM |
484 | **** Support for operating with stashes has been added to vc-dir: |
485 | the stash list is displayed in the *vc-dir* header, stashes can be | |
486 | created, removed, applied and their content displayed. | |
6b4df8a6 | 487 | |
4dfb3b9c DN |
488 | *** vc-bzr supports operating with shelves: the shelve list is |
489 | displayed in the *vc-dir* header, shelves can be created, removed and applied. | |
2233cfb0 | 490 | |
31764e15 SM |
491 | *** log-edit-strip-single-file-name controls whether or not single filenames |
492 | are stripped when copying text from the ChangeLog to the *VC-Log* buffer. | |
493 | ||
9f18817f | 494 | ** Miscellaneous |
2233cfb0 | 495 | |
c585bf32 JL |
496 | *** Interactively `multi-isearch-buffers' and `multi-isearch-buffers-regexp' |
497 | read buffer names to search, one by one, ended with RET. With a prefix | |
498 | argument, they ask for a regexp, and search in buffers whose names match | |
499 | the specified regexp. Interactively `multi-isearch-files' and | |
500 | `multi-isearch-files-regexp' read file names to search, one by one, | |
501 | ended with RET. With a prefix argument, they ask for a wildcard, and | |
502 | search in file buffers whose file names match the specified wildcard. | |
2233cfb0 | 503 | |
59ffcfc4 | 504 | *** Autorevert Tail mode now works also for remote files. |
2233cfb0 | 505 | |
3b0788f6 | 506 | *** The new eshell built-in commands `su' and `sudo' support Tramp. |
2233cfb0 CY |
507 | Thus, they change `default-directory' to reflect the new user id, and |
508 | let commands run under that user's permissions. This works even when | |
9bbd0cac | 509 | `default-directory' is already remote. Calling the external commands |
2233cfb0 CY |
510 | is possible via `*su' or `*sudo', respectively. |
511 | ||
512 | ** Obsolete packages | |
513 | ||
514 | *** sym-comp.el is now obsolete, superseded by completion-at-point. | |
515 | ||
516 | *** lucid.el and levents.el are now obsolete. | |
a91e1f6b | 517 | |
af077012 SY |
518 | \f |
519 | * New Modes and Packages in Emacs 23.2 | |
520 | ||
cec84921 CY |
521 | ** CEDET (the Collection of Emacs Development Tools) is now in Emacs. |
522 | This is a collection of packages to aid with using Emacs as an IDE | |
523 | (integrated development environment): | |
524 | ||
525 | *** The Semantic package allows the use of parsers to intelligently | |
526 | edit and navigate source code. Parsers for C/C++, Java, Javascript, | |
527 | and several other languages are included by default, and Semantic can | |
528 | also interface with external tools such as GNU Global and GNU Idutils. | |
529 | ||
530 | To enable Semantic, use the global minor mode `semantic-mode'. | |
531 | See the Semantic manual for details. | |
532 | ||
533 | *** EDE (Emacs Development Environment) is a package for managing code | |
534 | projects, including features such as automatic Makefile generation. | |
535 | ||
536 | To enable EDE, use the minor mode `global-ede-mode'. | |
537 | See the EDE manual for details. | |
538 | ||
539 | *** SRecode is a library for recoding Semantic tags back into source | |
540 | code. It is currently used by some parts of Semantic and EDE; in the | |
541 | future, it may be used for code generation features. | |
542 | ||
543 | *** The EIEIO library implements a subset of the Common Lisp Object | |
544 | System (CLOS). It is used by the other CEDET packages. | |
545 | ||
e1ada222 | 546 | ** mpc.el is a front end for the Music Player Daemon. Run it with M-x mpc. |
96639030 | 547 | |
0de9f8b7 SM |
548 | ** htmlfontify.el turns a fontified Emacs buffer into an HTML page. |
549 | ||
304fe7fa | 550 | ** js.el is a new major mode for JavaScript files. |
0822135e | 551 | |
3d994264 TZ |
552 | ** imap-hash.el is a new library to address IMAP mailboxes as hashtables. |
553 | ||
0822135e | 554 | \f |
b3429475 GM |
555 | * Incompatible Lisp Changes in Emacs 23.2 |
556 | ||
b6f94db5 CY |
557 | ** The Lisp reader turns integers that are too large/small into floats. |
558 | For instance, on machines where `536870911' is the largest integer, | |
559 | reading `536870912' gives the floating-point object `536870912.0'. | |
300ad19d CY |
560 | |
561 | This change only concerns the Lisp reader; it does not affect how | |
562 | actual integer objects overflow. | |
b6f94db5 | 563 | |
b3429475 GM |
564 | ** Several obsolete functions removed. |
565 | The functions have been obsolete since Emacs 19, and are unlikely to | |
566 | be in use: | |
567 | ||
568 | time-stamp-month-dd-yyyy, time-stamp-dd/mm/yyyy, time-stamp-mon-dd-yyyy | |
569 | time-stamp-dd-mon-yy, time-stamp-yy/mm/dd, time-stamp-yyyy/mm/dd, | |
570 | time-stamp-yyyy-mm-dd, time-stamp-yymmdd, time-stamp-hh:mm:ss, | |
571 | time-stamp-hhmm, baud-rate | |
572 | ||
b3429475 GM |
573 | ** Support for generating Emacs 18 compatible bytecode (by setting |
574 | the variable `byte-compile-compatibility') has been removed. | |
575 | ||
f492f32f GM |
576 | ** In image-mode.el `image-mode-maybe' is obsolete. |
577 | Instead, you can either use `image-mode' (which displays an image file | |
578 | as the actual image initially), or `image-mode-as-text' (when you want | |
579 | to display an image file as text initially). `image-mode-as-text' is a | |
580 | combination of a non-image mode from `auto-mode-alist' (or Fundamental | |
581 | mode) and `image-minor-mode'. `image-minor-mode' provides a `C-c C-c' | |
582 | key binding to toggle image display. | |
9b9debd1 JL |
583 | `image-toggle-display-text' removes image properties. |
584 | `image-toggle-display-image' adds image properties. | |
f492f32f | 585 | `image-toggle-display' toggles between `image-mode-as-text' and `image-mode'. |
9b9debd1 | 586 | |
b3429475 | 587 | \f |
0822135e | 588 | * Lisp changes in Emacs 23.2 |
2233cfb0 | 589 | |
901c830b CY |
590 | ** All the default-FOO variables that hold the default value of the FOO |
591 | variable, are now declared obsolete. | |
4fcc3d32 | 592 | |
901c830b CY |
593 | ** read-key is a function halfway between read-event and read-key-sequence. |
594 | It reads a single key, but obeys input and escape sequence decoding. | |
528c56e2 | 595 | |
96639030 | 596 | ** Frame parameter changes |
2233cfb0 | 597 | |
96639030 CY |
598 | *** You can give the `fullscreen' frame parameter the value `maximized'. |
599 | This maximizes the frame. | |
2233cfb0 | 600 | |
96639030 CY |
601 | *** The new frame parameter `sticky' makes Emacs frames sticky in |
602 | virtual desktops. | |
603 | ||
901c830b | 604 | ** Completion changes |
2233cfb0 | 605 | |
901c830b | 606 | *** completion-base-size is obsoleted by completion-base-position. |
d5e63715 SM |
607 | This change causes a few backward incompatibilities, mostly with |
608 | choose-completion-string-functions where the `mini-p' argument has | |
609 | been replaced by a `base-position' argument, and where the `base-size' | |
610 | argument is now always nil. | |
2233cfb0 | 611 | |
901c830b CY |
612 | *** New function `completion-in-region' to use the standard completion |
613 | facilities on a particular region of text. | |
2233cfb0 | 614 | |
901c830b | 615 | *** The 4th arg to all-completions (aka hide-spaces) is declared obsolete. |
2233cfb0 | 616 | |
901c830b CY |
617 | *** completion-annotate-function specifies how to compute annotations |
618 | for completions displayed in *Completions*. | |
619 | ||
620 | ** Minibuffer changes | |
2233cfb0 | 621 | |
901c830b CY |
622 | *** read-file-name-predicate is obsolete. It was used to pass the predicate |
623 | to read-file-name-internal because read-file-name-internal abused its `pred' | |
624 | argument to pass the current directory, but this hack is not needed | |
625 | any more. | |
626 | ||
627 | ** Changes to file-manipulation functions | |
2233cfb0 | 628 | |
901c830b | 629 | *** `delete-directory' has an optional parameter RECURSIVE. |
2233cfb0 | 630 | |
901c830b CY |
631 | *** New function `copy-directory', which copies a directory recursively. |
632 | ||
9d28c33e SM |
633 | ** called-interactively-p now takes one argument and replaces interactive-p |
634 | which is now marked obsolete. | |
901c830b | 635 | |
ced10a4c SM |
636 | ** New function set-advertised-calling-convention makes it possible |
637 | to obsolete arguments as well as make some arguments mandatory. | |
838ff458 | 638 | |
8cb95edf SM |
639 | ** You can control which binding is preferentially shown in menus and |
640 | docstrings by adding a `:advertised-binding' property to the corresponding | |
641 | command's symbol. That property can hold a single binding or a list | |
642 | of bindings. | |
643 | ||
901c830b | 644 | ** Network and process changes |
2233cfb0 | 645 | |
901c830b | 646 | *** start-process-shell-command and start-file-process-shell-command |
a126db16 | 647 | now only take a single `command' argument. |
2233cfb0 | 648 | |
f7704e26 CY |
649 | *** The new variable `process-file-side-effects' should be set to nil |
650 | if a `process-file' call does not change a remote file. This allows | |
651 | file name handlers such as Tramp to optimizations. | |
2233cfb0 | 652 | |
f7704e26 | 653 | *** make-network-process can now also create `seqpacket' Unix sockets. |
901c830b CY |
654 | |
655 | ** Loading changes | |
2233cfb0 | 656 | |
901c830b | 657 | *** eval-next-after-load is obsolete. |
2233cfb0 | 658 | |
901c830b CY |
659 | *** New hook `after-load-functions' run after loading an Elisp file. |
660 | ||
661 | ** Byte compilation changes | |
2233cfb0 | 662 | |
901c830b CY |
663 | *** Changing the file-names generated by byte-compilation by redefining |
664 | the function `byte-compile-dest-file' before loading bytecomp.el is obsolete. | |
665 | Instead, customize byte-compile-dest-file-function. | |
2233cfb0 | 666 | |
901c830b CY |
667 | *** `byte-compile-warnings' has new members, `constants' and `suspicious'. |
668 | ||
669 | ** New macro with-silent-modifications to tweak text properties without | |
670 | affecting the buffer's modification state. | |
671 | ||
0822135e CY |
672 | ** Hash tables have a new printed representation that is readable. |
673 | The feature `hashtable-print-readable' identifies this new | |
674 | functionality. | |
3c736e33 | 675 | |
4102856c | 676 | ** New functions for performing Unicode normalization: |
3c736e33 KH |
677 | ucs-normalize-NFD-region, ucs-normalize-NFD-string, |
678 | ucs-normalize-NFC-region, ucs-normalize-NFC-string, | |
679 | ucs-normalize-NFKD-region, ucs-normalize-NFKD-string, | |
680 | ucs-normalize-NFKC-region, ucs-normalize-NFKC-string, | |
681 | ucs-normalize-HFS-NFD-region, ucs-normalize-HFS-NFD-string, | |
682 | ucs-normalize-HFS-NFC-region, ucs-normalize-HFS-NFC-string. | |
94862c1b | 683 | |
197b67b1 GM |
684 | ** Face aliases can now be marked as obsolete, using the macro |
685 | `define-obsolete-face-alias'. | |
14ad89e1 | 686 | |
72030c76 GM |
687 | ** New function `window-full-height-p', analogous to the full-width version. |
688 | ||
d3080264 | 689 | \f |
f9245b5d CY |
690 | * Changes in Emacs 23.2 on non-free operating systems |
691 | ||
f9245b5d CY |
692 | ** On MS-Windows, `display-time' now displays the system load average |
693 | as well as the time, as it does on GNU and Unix. | |
9f18817f | 694 | |
009c963c | 695 | \f |
0bfd685e | 696 | * Installation Changes in Emacs 23.1 |
c58dccad | 697 | |
3f7194ed | 698 | ** The default X toolkit is now Gtk+, rather than Lucid. |
09e18d03 CY |
699 | The configure option `--with-gtk' has been removed. Gtk is now the |
700 | default toolkit, but you can use --with-x-toolkit=gtk if necessary. | |
3f7194ed | 701 | |
09e18d03 CY |
702 | ** New font code. |
703 | Fonts are handled by new code capable of dealing with multiple font | |
de9efca0 | 704 | backends. This uses the freetype and fontconfig libraries. |
16e82271 | 705 | |
09e18d03 CY |
706 | *** Emacs now accepts font names supplied in the fontconfig format |
707 | (e.g. "monospace-12:bold") and GTK format (e.g. "Monospace Bold 12"). | |
1abe3a1e | 708 | |
09e18d03 CY |
709 | *** Added support for local fonts (fonts installed on the machine |
710 | where Emacs is running). | |
711 | ||
712 | *** Added support for the Xft library for antialiasing. | |
713 | ||
714 | *** Added support for the otf library for complex text layout by | |
715 | OpenType fonts. | |
716 | ||
717 | *** Added support for the m17n library for text shaping. | |
15f02f65 | 718 | |
09e18d03 | 719 | ** Changes to image support |
16e82271 | 720 | |
09e18d03 | 721 | *** configure now checks for libgif before libungif when searching for |
9d3cc9b2 | 722 | a GIF library. |
16e82271 | 723 | |
09e18d03 CY |
724 | *** Emacs now supports the SVG image format through librsvg2. |
725 | ||
fab17942 JR |
726 | *** Emacs now supports multi-page TIFF images. |
727 | ||
da14b7ca | 728 | ** New NeXTSTEP-based port. |
3dcdb6ea | 729 | This provides support for GNUstep (via the GNUstep libraries) and Mac |
1e9b0fb2 | 730 | OS X (via the Cocoa libraries). |
043023ca | 731 | |
2e538385 | 732 | Specify --with-ns to configure for this. By default, a self-contained |
043023ca CY |
733 | app will be built (containing all lisp). To install/share lisp with |
734 | other emacsen (e.g. X11 build) use --disable-ns-self-contained. See | |
735 | nextstep/README and nextstep/INSTALL in the Emacs source directory. | |
006a2cde CY |
736 | |
737 | ** Mac OS X is no longer supported via Carbon. | |
738 | Use the NeXTSTEP port, described above. | |
36e625ec | 739 | |
09e18d03 CY |
740 | ** The new configuration option "--with-dbus" enables D-Bus language |
741 | bindings for Emacs. | |
07e5c0b0 | 742 | |
bb9f7948 EZ |
743 | ** Support for many obsolete platforms has been removed. |
744 | See the list at the end of etc/MACHINES for details. | |
16e82271 | 745 | |
09e18d03 | 746 | *** Support for systems without alloca has been removed. |
16e82271 | 747 | |
09e18d03 | 748 | *** Support for Sun windows has been removed. |
16e82271 | 749 | |
2e0ef05b | 750 | *** The `emacstool' utility has been removed. |
09e18d03 | 751 | |
006a2cde | 752 | ** The following platforms will be removed in a future Emacs version: |
9bc072cc CY |
753 | If you are still using Emacs on one of these platforms, please email |
754 | emacs-devel@gnu.org to inform the Emacs developers. | |
006a2cde | 755 | |
9bc072cc | 756 | *** Old GNU/Linux systems based on libc version 5. |
006a2cde | 757 | |
9bc072cc | 758 | *** Old FreeBSD, NetBSD, and OpenBSD systems based on the COFF |
da14b7ca | 759 | executable format. |
006a2cde CY |
760 | |
761 | *** Solaris versions 2.6 and below. | |
762 | ||
32847230 CY |
763 | *** Solaris on IBM RS6000 machines. |
764 | ||
765 | *** UNIX System V (the original SysV, not later platforms based on it). | |
766 | ||
9bc072cc CY |
767 | *** Unixware on non-x86 machines. |
768 | ||
32847230 CY |
769 | *** Platforms not supporting shared libraries (i.e., requiring the |
770 | NO_SHARED_LIBS compilation flag). | |
006a2cde | 771 | |
a46ee55c GM |
772 | ** The configure options `--with-gcc', `--without-gcc' have been removed. |
773 | Configure will use gcc by default. Set the CC environment variable if | |
774 | you need control over which C compiler is used. | |
775 | ||
09e18d03 CY |
776 | ** The refcards are now shipped as PDF files. |
777 | ||
3b75ca8b GM |
778 | ** The manuals are now licensed under the GNU Free Documentation License v1.3, |
779 | or any later version. | |
780 | ||
09e18d03 CY |
781 | ** Emacs 23 comes with a new set of default icons. |
782 | Various resolutions are available as etc/images/icons/hicolor/*/apps/emacs.png. | |
783 | The Emacs 22 icon is available as `emacs22.png' in the same location. | |
4e5cdb4f | 784 | \f |
6dadd99f NR |
785 | * Changes in Emacs 23.1 |
786 | ||
09e18d03 | 787 | ** Improved X Window System support |
16e82271 | 788 | |
09e18d03 CY |
789 | *** Emacs now supports using both X displays and ttys in one session. |
790 | With an Emacs server active (M-x server-start), `emacsclient -t' | |
791 | creates a tty frame connected to the running emacs server. You can | |
792 | use any number of different ttys. `emacsclient -c' creates a new X11 | |
793 | frame on the current $DISPLAY (or a tty frame if $DISPLAY is not set). | |
e390f3a3 JD |
794 | There may be problems if a display exits unexpectedly and Emacs is compiled |
795 | with Gtk+, see etc/PROBLEMS. | |
780d7bb9 RS |
796 | |
797 | You can test for the presence of this feature in your Lisp code by | |
798 | testing for the `multi-tty' feature. | |
16e82271 CY |
799 | |
800 | *** Emacs starts in the background, as a daemon, when given the | |
eab2ee89 DN |
801 | --daemon command line argument. It disconnects from the terminal and |
802 | starts the server. Clients can connect and create graphical or | |
803 | terminal frames using emacsclient. | |
16e82271 | 804 | |
c569485c | 805 | **** emacsclient starts emacs in daemon mode and connects to it when |
82d0a250 DN |
806 | --alternate-editor="" is used (or when the evironment variable |
807 | ALTERNATE_EDITOR is set to "") and emacsclient cannot connect to an | |
c569485c DN |
808 | emacs server. |
809 | ||
09e18d03 | 810 | *** The new command close-display-connection closes a connection to a |
717c97e5 | 811 | remote display. There are some bugs for Gtk+. See etc/PROBLEMS. |
d82c3d44 | 812 | |
09e18d03 CY |
813 | *** Emacs now supports the XEmbed specification. |
814 | You can embed Emacs in another application on X11. The new command line | |
815 | option --parent-id is used to pass the parent window id to Emacs. See | |
7b476dbe JD |
816 | http://standards.freedesktop.org/xembed-spec/xembed-spec-latest.html |
817 | for details about XEmbed. | |
16e82271 | 818 | |
09e18d03 CY |
819 | *** Emacs can now set the frame opacity. |
820 | The opacity of a frame can be controlled by setting the `alpha' frame | |
821 | parameter. This only takes effect on a compositing window manager for | |
920ab46c SZ |
822 | the X Window System, such as Compiz, Beryl and Compiz Fusion, on Mac |
823 | OS X, or on Windows 2000 and later versions of Windows. | |
55f9bad5 GM |
824 | |
825 | The alpha parameter should be an integer between 0 (transparent) and | |
09e18d03 CY |
826 | 100 (opaque), or a float number between 0.0 and 1.0. It can also be a |
827 | cons cell (ACTIVE . INACTIVE), where ACTIVE is the opacity of an | |
540f3092 | 828 | active frame and INACTIVE is the opacity of non-active frames. |
55f9bad5 | 829 | |
09e18d03 CY |
830 | The variable `frame-alpha-lower-limit' defines a lower bound for the |
831 | opacity; the default is 20. | |
55f9bad5 | 832 | |
09e18d03 | 833 | ** Internationalization changes |
16e82271 | 834 | |
09e18d03 CY |
835 | *** The Emacs character set is now a superset of Unicode. |
836 | (It has about four times the code space, which should be plenty). | |
0a963185 | 837 | |
09e18d03 | 838 | The internal encoding used for buffers and strings is now |
16e82271 CY |
839 | Unicode-based and called `utf-8-emacs' (`emacs-internal' is an alias |
840 | for this). This encoding is backward-compatible with Unicode's UTF-8 | |
841 | encoding. The internal encoding previously used by Emacs, | |
842 | `emacs-mule', is still available for reading and writing files. | |
6dadd99f | 843 | |
09e18d03 CY |
844 | During byte-compilation, Emacs 23 uses `utf-8-emacs' to write files. |
845 | As a result, byte-compiled files containing non-ASCII characters can't | |
846 | be read by earlier versions of Emacs. Files compiled by Emacs 20, 21, | |
16e82271 CY |
847 | or 22 are loaded correctly as `emacs-mule' (whether or not they |
848 | contain multibyte characters). This takes somewhat more time, so it | |
849 | may be worth recompiling existing .elc files which don't need to be | |
850 | shared with older Emacsen. | |
3ae459e5 | 851 | |
09e18d03 | 852 | *** There are new coding systems/aliases; see M-x list-coding-systems. |
c2e8590b | 853 | |
09e18d03 CY |
854 | *** There is a new charset implementation with many new charsets. |
855 | See M-x list-character-sets. New charsets can be defined conveniently | |
856 | as tables of unicodes. | |
1abe3a1e | 857 | |
09e18d03 CY |
858 | *** There are new language environments for Chinese-GBK, |
859 | Chinese-GB18030, Khmer, Bengali, Punjabi, Gujarati, Oriya, Telugu, | |
860 | Sinhala, and TaiViet. | |
16e82271 | 861 | |
09e18d03 CY |
862 | *** The minor modes unify-8859-on-encoding-mode and |
863 | unify-8859-on-decoding-mode are obsolete. | |
16e82271 | 864 | |
e94d0645 JL |
865 | *** `ucs-insert' is bound to `C-x 8 RET' and in addition to hex numbers |
866 | accepts numbers in hash notation (e.g. #o21430 for octal, or #10r8984 for | |
867 | decimal). It also accepts Unicode character names with completion. | |
16e82271 | 868 | |
6d496c76 TZ |
869 | *** The `cyrillic-translit' input method supports many new characters. |
870 | Common typographical characters available from Unicode were added to | |
871 | `cyrillic-translit': punctuation marks, accented characters, fractions, | |
872 | and others. | |
873 | ||
09e18d03 | 874 | ** Emacs now supports serial port access on GNU/Linux, Unix, and |
81efacf9 CY |
875 | Windows. The new command `serial-term' starts an interactive terminal |
876 | on a serial port. The serial port can be configured at runtime with | |
877 | the mode-line mouse menu. | |
6c5d503f | 878 | |
09e18d03 | 879 | ** Menu Bar changes |
16e82271 | 880 | |
09e18d03 CY |
881 | *** In the Options menu, the "Set Default Font" item applies the |
882 | selected font to the `default' face on all frames, not just the | |
883 | current frame. Furthermore, if Emacs is compiled with both GTK and | |
884 | Fontconfig support, the "Set Default Font" item uses the GTK font | |
885 | selection dialog instead of an Emacs pop-up menu. | |
16e82271 | 886 | |
09e18d03 CY |
887 | *** The font setting chosen by "Set Default Font" is saved if the |
888 | "Save Options" item is used. | |
1b21ee06 | 889 | |
b350bdf2 CY |
890 | *** The Tools menu contains a new Encryption/Decryption submenu. |
891 | This contains commands provided by EasyPG, the newly-included | |
892 | interface to GnuPG (see New Modes and Packages). | |
16e82271 | 893 | |
81efacf9 CY |
894 | *** In the Options menu, the "Truncate Long Lines in the Buffer" entry |
895 | has been replaced with a submenu offering three different ways to | |
896 | handle long lines: truncation, continuation at the window edge, and | |
697f6b43 | 897 | the new word wrapping behavior (see Editing Changes, below). |
16e82271 | 898 | |
c1337511 DN |
899 | *** Improvements to menus for major and minor modes |
900 | More major and minor modes now have a mode specific menu, and existing | |
901 | mode menus have been improved to include more functionality. | |
902 | ||
09e18d03 | 903 | ** Mode-line changes |
16e82271 | 904 | |
09e18d03 CY |
905 | *** The mode-line displays a `@', instead of `-', if the |
906 | default-directory for the current buffer is on a remote machine. | |
16e82271 | 907 | |
09e18d03 CY |
908 | *** The mode-line displays a mode menu when mouse-1 is clicked on a |
909 | minor mode, in the same way as it already did for major modes. | |
16e82271 | 910 | |
09e18d03 CY |
911 | *** The `mode-line-emphasis' face is used to highlight certain |
912 | mode-line information (e.g. waiting for a VC command to finish). | |
16e82271 | 913 | |
c1337511 | 914 | *** The mode-line tooltips have been improved to provide more details. |
16e82271 | 915 | |
c1337511 DN |
916 | *** The VC, line/colum number and minor mode indicators on the mode |
917 | line are now interactive: mouse-1 can be used on them to pop up a menu. | |
918 | ||
b798e26a GM |
919 | ** File deletion can make use of the Recycle Bin or system Trash folder. |
920 | Set `delete-by-moving-to-trash' non-nil to use this. Deleted files | |
0956be4f | 921 | and directories will then be sent to the Recycle Bin on Windows, and |
b798e26a GM |
922 | to `trash-directory' on other systems. |
923 | ||
09e18d03 | 924 | ** Directory-local variables can now be defined. |
fc0318c6 JL |
925 | By default, Emacs looks in .dir-locals.el for directory-local |
926 | variables. For more information, see `dir-locals-set-directory-class' | |
927 | and `dir-locals-set-class-variables'. | |
307f3501 | 928 | |
b798e26a GM |
929 | ** Emacs can now use `auth-source' for authentication. |
930 | `smtpmail' and `url' (Tramp and Gnus also) use `auth-source' to obtain | |
931 | login names and passwords. The match, if found, is reported | |
932 | in *Messages* with the password blanked out. | |
933 | ||
934 | ** `where-is-preferred-modifier' can specify your favorite modifier. | |
935 | ||
6dadd99f | 936 | \f |
0bfd685e | 937 | * Startup Changes in Emacs 23.1 |
21f7b9d8 | 938 | |
3063e326 JL |
939 | ** The option `inhibit-startup-screen' (with aliases to old names |
940 | `inhibit-splash-screen' and `inhibit-startup-message') doesn't inhibit | |
941 | display of the initial message in the *scratch* buffer. If you don't | |
942 | want to display the initial message in the *scratch* buffer at startup, | |
943 | you can set the option `initial-scratch-message' to nil. | |
944 | ||
56e1896b JL |
945 | ** New user option `initial-buffer-choice' specifies what to display |
946 | after starting Emacs: startup screen, *scratch* buffer, visiting a | |
947 | file or directory. | |
948 | ||
aa5310e4 DK |
949 | ** New alias `argv' for `command-line-args-left' |
950 | This is a convenience alias, so that one can write `(pop argv)' | |
951 | inside of --eval command line arguments in order to access | |
952 | following arguments. | |
f8fd7ed3 GM |
953 | |
954 | ** The abbrev file is no longer read at startup in batch mode. | |
f36acfd9 EZ |
955 | |
956 | ** Emacs now supports invocation by an X session manager. | |
957 | It can save a session and restore it later. See the documentation of | |
958 | the functions `emacs-session-save' and `emacs-session-restore'. | |
959 | (Actually, this feature was introduced with Emacs 22, but it was not | |
960 | documented.) | |
c44da964 | 961 | \f |
0bfd685e | 962 | * Incompatible Editing Changes in Emacs 23.1 |
b58cb59f | 963 | |
d1949cd5 JL |
964 | ** In Dired, `dired-flag-garbage-files' is rebound from `&' to `%&' |
965 | on the regexp command prefix map. | |
966 | ||
117907d4 JL |
967 | ** In Dired-x, all command guesses for ! are now added to the default |
968 | list accessible by M-n instead of pushing all guesses temporarily into | |
969 | the history list. | |
970 | ||
e94d0645 JL |
971 | ** In Isearch mode, a special case of typing `C-w' at the beginning of |
972 | the minibuffer that toggles word search (i.e. using key sequences | |
973 | `C-s RET C-w' or `C-s M-e C-w') is obsolete. You can use the global key | |
974 | `M-s w' to start word search, or type `M-s w' in Isearch mode to | |
fd4c2a39 JL |
975 | toggle word search. To start nonincremental word search you can now use |
976 | `M-s w RET' and `M-s w C-r RET' instead of `C-s RET C-w' and `C-r RET C-w'. | |
e94d0645 | 977 | |
45ad1cc5 JL |
978 | ** In Info, `Info-search' is unbound from `M-s' to allow using `M-s w' |
979 | for word search as well as other search commands from the global prefix | |
980 | key `M-s'. `Info-search' is still bound to `s', and also incremental | |
981 | search commands `C-s', `C-M-s', `C-r', `C-M-r' are available for searching | |
982 | through multiple Info nodes, together with their nonincremental versions | |
983 | `C-s RET', `C-r RET', `C-M-s RET', `C-M-r RET', `M-s w RET'. | |
984 | ||
16e82271 CY |
985 | ** In Text mode, `center-line' and `center-paragraph' are rebound from |
986 | `M-s' and `M-S' to global keys `M-o M-s' and `M-o M-S' on the global | |
987 | prefix map `M-o', which is intended for such formatting commands. | |
4e14951f | 988 | |
e405fa5f | 989 | ** The following input methods were removed in Emacs 22.2, but this was |
9a930d75 | 990 | not advertised: danish-alt-postfix, esperanto-alt-postfix, |
e405fa5f RS |
991 | finnish-alt-postfix, german-alt-postfix, icelandic-alt-postfix, |
992 | norwegian-alt-postfix, scandinavian-alt-postfix, spanish-alt-postfix, | |
993 | and swedish-alt-postfix. Use the versions without "alt-", which are | |
994 | identical. | |
0b0914ae | 995 | |
406c0f12 | 996 | \f |
0bfd685e | 997 | * Editing Changes in Emacs 23.1 |
406c0f12 | 998 | |
0c8b58e9 CY |
999 | ** The C-n and C-p line-motion commands now move by screen lines, |
1000 | taking continued lines and variable-width characters into account. | |
1001 | Setting `line-move-visual' to nil reverts this to the previous | |
16e82271 CY |
1002 | behavior (i.e., motion by logical lines based on buffer contents |
1003 | alone). | |
0c8b58e9 | 1004 | |
09e18d03 | 1005 | ** C-x C-c now invokes `save-buffers-kill-terminal', and C-z now |
16e82271 | 1006 | invokes `suspend-frame'. These changes are for compatibility with the |
09e18d03 | 1007 | new multi-tty support (see `Improved X Window System support' above). |
3ae459e5 | 1008 | |
09e18d03 | 1009 | ** Mark changes |
16e82271 | 1010 | |
3ae459e5 | 1011 | *** Transient Mark mode is now on by default. |
16e82271 | 1012 | |
3ae459e5 | 1013 | *** mark-even-if-inactive now defaults to t |
16e82271 | 1014 | |
b350bdf2 CY |
1015 | *** When Transient Mark mode is on, C-SPC C-SPC pushes a mark without |
1016 | activating it. | |
16e82271 | 1017 | |
3ae459e5 CY |
1018 | *** When Transient Mark mode is on, M-q now fills the region if the |
1019 | region is active. Otherwise, it fills the current paragraph. | |
16e82271 | 1020 | |
3ae459e5 CY |
1021 | *** When Transient Mark mode is on, M-$ now checks spelling of the |
1022 | region if the region is active. Otherwise, it checks spelling of the | |
dc868f13 | 1023 | word at point. |
16e82271 | 1024 | |
3ae459e5 CY |
1025 | *** When Transient Mark mode is on, TAB now indents the region if the |
1026 | region is active. | |
16e82271 CY |
1027 | |
1028 | *** The variable `use-empty-active-region' controls whether an empty | |
1029 | active region in Transient Mark mode should make commands operate on | |
1030 | that empty region. | |
3ae459e5 CY |
1031 | |
1032 | ** Temporarily active regions | |
16e82271 | 1033 | |
3ae459e5 CY |
1034 | *** The new variable shift-select-mode, non-nil by default, controls |
1035 | shift-selection. When Shift Select mode is on, shift-translated | |
1036 | motion keys (e.g. S-left and S-down) activate and extend a temporary | |
1037 | region, similar to mouse-selection. | |
16e82271 | 1038 | |
3ae459e5 CY |
1039 | *** Temporarily active regions, created using shift-selection or |
1040 | mouse-selection, are not necessarily deactivated in the next command. | |
1041 | They are only deactivated after point motion commands that are not | |
1042 | shift-translated, or after commands that would ordinarily deactivate | |
1043 | the mark in Transient Mark mode (e.g., any command that modifies the | |
1044 | buffer). | |
1045 | ||
3307af6c | 1046 | ** Minibuffer and completion changes |
16e82271 | 1047 | |
206faa92 CY |
1048 | *** Emacs may ask for confirmation before opening a non-existent file |
1049 | or buffer. By default, Emacs requests confirmation if you type RET | |
1050 | immediately after TAB, and the resulting input is not an existing file | |
1051 | or buffer; this usually happens when the minibuffer input did not | |
1052 | complete far enough and you entered RET by mistake. In that case, | |
1053 | Emacs puts the message "[Confirm]" in the minibuffer; type RET again | |
1054 | to create the file or buffer. | |
1055 | ||
1056 | The new variable confirm-nonexistent-file-or-buffer determines whether | |
1057 | Emacs asks for confirmation. The default value is `after-completion'. | |
1058 | If you change it to t, Emacs always asks for confirmation; if you | |
1059 | change it to nil, Emacs never asks for confirmation. | |
16e82271 | 1060 | |
aea75a87 CY |
1061 | *** The rules for performing completion have been changed. |
1062 | When generating completion alternatives, Emacs now takes the | |
1063 | minibuffer text after point, if any, into account: this text is | |
1064 | treated as a substring of the remaining part of the completion | |
1065 | alternative (i.e., the part not matched by the minibuffer text before | |
1066 | point). If no completion alternatives are found this way, Emacs | |
1067 | attempts to perform partial-completion. If still no completion | |
1068 | alternatives are found, we fall back on the Emacs 22 rules for | |
1069 | performing completion. | |
1070 | ||
1071 | The new variable `completion-styles' can be customized to choose your | |
1072 | favorite completion style. | |
16e82271 | 1073 | |
d47a29c1 JL |
1074 | *** When M-n in the minibuffer reaches the end of the list of defaults, |
1075 | it adds the completion list to the end, so next M-n continues putting | |
1076 | completion items to the minibuffer. The same principle applies to | |
1077 | incremental search commands as well: C-s or C-M-s starts searching | |
1078 | the default values and after the end of defaults they continue | |
1079 | searching minibuffer completion items. | |
16e82271 | 1080 | |
09e18d03 | 1081 | *** Minibuffer input of shell commands now comes with completion. |
16e82271 | 1082 | |
09e18d03 CY |
1083 | *** In the `C-x d' (Dired) prompt, typing M-n gives the visited file |
1084 | name of the current buffer. | |
dc2f6c05 | 1085 | |
09e18d03 CY |
1086 | *** In the M-! (shell-command) prompt, M-n provides some default commands. |
1087 | These are guessed using the file extension of the current file, based | |
1088 | on the file-handlers specified in the operating system's `mailcap' | |
1089 | file. The ! command in Dired (dired-do-shell-command) works | |
1090 | similarly, using the file displayed on the current line. | |
117907d4 JL |
1091 | |
1092 | *** A list of regexp default values is available via M-n for `occur', | |
1093 | `keep-lines', `flush-lines' and `how-many'. This list includes the active | |
4f75e082 JL |
1094 | region in transient-mark-mode, the word under the cursor, the last Isearch |
1095 | regexp, the last Isearch string and the last replacement regexp. | |
16e82271 | 1096 | |
3353f870 CY |
1097 | *** When enable-recursive-minibuffers is non-nil, operations which use |
1098 | switch-to-buffer (such as C-x b and C-x C-f) do not fail any more when | |
1099 | used in a minibuffer or a dedicated window. Instead, they fallback on | |
1100 | using pop-to-buffer, which will use some other window. This change | |
1101 | has no effect when enable-recursive-minibuffers is nil (the default). | |
16e82271 | 1102 | |
4f75e082 JL |
1103 | *** Isearch started in the minibuffer searches in the minibuffer history. |
1104 | Reverse Isearch commands (C-r, C-M-r) search in previous minibuffer | |
1105 | history elements, and forward Isearch commands (C-s, C-M-s) search in | |
297b8ccd JL |
1106 | next history elements. When the reverse search reaches the first history |
1107 | element, it wraps to the last history element, and the forward search | |
1108 | wraps to the first history element. When the search is terminated, the | |
1109 | history element containing the search string becomes the current. | |
16e82271 | 1110 | |
6c897494 CY |
1111 | *** The variable read-file-name-completion-ignore-case overrides |
1112 | completion-ignore-case for file name completion. | |
16e82271 | 1113 | |
6c897494 CY |
1114 | *** The variable read-buffer-completion-ignore-case overrides |
1115 | completion-ignore-case for buffer name completion. | |
16e82271 | 1116 | |
3307af6c CY |
1117 | *** The new command `minibuffer-force-complete' chooses one of the |
1118 | possible completions, rather than stopping at the common prefix. | |
16e82271 | 1119 | |
3307af6c CY |
1120 | *** If `completion-auto-help' is `lazy', Emacs shows the completions |
1121 | buffer only on the second attempt to complete. This was already | |
1122 | supported in `partial-completion-mode'. | |
6c897494 | 1123 | |
505d8756 | 1124 | ** Face changes |
16e82271 | 1125 | |
b350bdf2 CY |
1126 | *** S-down-mouse-1 now pops up a menu for changing the font and text |
1127 | size of the default face in the current buffer. The face is changed | |
133c4dc5 | 1128 | via face remapping (see Lisp changes, below). |
16e82271 | 1129 | |
5f9e21a9 CY |
1130 | *** New commands to change the default face size in the current buffer. |
1131 | To increase it, type `C-x C-+' or `C-x C-='. To decrease it, type | |
1132 | `C-x C--'. To restore the default (global) face size, type `C-x C-0'. | |
d59f7c45 CY |
1133 | These work via Text Scale mode, a new minor mode. |
1134 | ||
1135 | The final key in the above commands may be repeated without the | |
1136 | leading `C-x', e.g. `C-x C-= C-= C-=' increases the face height by | |
1137 | three steps. Each step scales the height of the default face by the | |
1138 | value of the variable `text-scale-mode-step'. | |
1139 | ||
60959d23 CY |
1140 | *** The commands buffer-face-mode and buffer-face-set can be used to |
1141 | remap the default face in the current buffer. See "Buffer Face mode", | |
1142 | under New Modes and Packages. | |
f20186fd | 1143 | |
09e18d03 | 1144 | ** Primary selection changes |
16e82271 | 1145 | |
b350bdf2 CY |
1146 | *** You can disable kill ring commands from accessing the primary |
1147 | selection by setting `x-select-enable-primary' to nil. | |
2e282009 | 1148 | |
697f6b43 CY |
1149 | ** Continuation lines can now be wrapped at word boundaries |
1150 | (word-wrapping). This is controlled by the new per-buffer variable | |
1151 | `word-wrap'. Word wrapping does not take place if continuation lines | |
1152 | are not shown, e.g. if truncate-lines is non-nil. The most convenient | |
1153 | way to enable word-wrapping is using the new minor mode Visual Line | |
1154 | mode; in addition to setting `word-wrap' to t, this rebinds some | |
1155 | editing commands to work on screen lines rather than text lines. See | |
1156 | New Modes and Packages, below. | |
85b1de32 | 1157 | |
463c6766 | 1158 | ** Window management changes |
16e82271 | 1159 | |
463c6766 CY |
1160 | *** truncate-partial-width-windows now accepts integer values, which |
1161 | specify a minimum window width for partial-width windows, below which | |
7d09b7a6 | 1162 | lines are truncated. The default has been changed to 50. |
463c6766 CY |
1163 | |
1164 | *** The new command balance-windows-area balances windows both | |
1165 | vertically and horizontally. | |
16e82271 | 1166 | |
8f5cee6a MR |
1167 | *** pop-to-buffer now always sets input focus when the popped-to window |
1168 | is on a different frame. | |
1169 | ||
09e18d03 | 1170 | ** Miscellaneous changes: |
16e82271 | 1171 | |
09e18d03 CY |
1172 | *** C-l is bound to the new command recenter-top-bottom, rather than recenter. |
1173 | This moves the current line to window center, top and bottom on | |
cdc0338e | 1174 | successive invocations. |
16e82271 | 1175 | |
09e18d03 | 1176 | *** scroll-preserve-screen-position also preserves the column position. |
16e82271 | 1177 | |
09e18d03 CY |
1178 | *** If `yank-pop-change-selection' is t, rotating the kill ring also |
1179 | updates the selection or clipboard to the current yank, just as M-w | |
1180 | would do so with the text it copies to the kill ring. | |
16e82271 | 1181 | |
09e18d03 CY |
1182 | *** C-M-% now shows replacement as it would look in the buffer, with |
1183 | `\N' and `\&' substituted according to the match. Old behavior can be | |
1184 | restored by customizing `query-replace-show-replacement'. | |
1185 | ||
1186 | *** The command shell prompts for the default directory, when it is | |
1187 | called with a prefix and the default directory is a remote file name. | |
1188 | This is because some file name handlers (like ange-ftp) are not able to | |
1189 | run processes remotely. | |
16e82271 | 1190 | |
09e18d03 CY |
1191 | *** The new command kill-matching-buffers kills buffers whose name |
1192 | matches a regexp. | |
16e82271 | 1193 | |
ae98e41f CY |
1194 | *** The value of comment-style now defaults to `indent'. |
1195 | Thefore, comment-start markers are inserted at the current indentation | |
1196 | of the region to comment, rather than the leftmost column. | |
16e82271 | 1197 | |
b350bdf2 CY |
1198 | *** The new commands `pp-macroexpand-expression' and |
1199 | `pp-macroexpand-last-sexp' pretty-print macro expansions. | |
16e82271 | 1200 | |
018a960d EZ |
1201 | *** The new command `set-file-modes' allows to set file's mode bits. |
1202 | The mode bits can be specified in symbolic notation, like with GNU | |
e6979067 DN |
1203 | Coreutils, in addition to an octal number. `chmod' is a new |
1204 | convenience alias for this function. | |
d334fa1e | 1205 | |
d2c52e26 EZ |
1206 | *** `next-error-recenter' specifies how next-error should recenter the |
1207 | visited source file. Its value can be a number (for example, 0 for | |
1208 | top line, -1 for bottom line), or nil for no recentering. | |
16e82271 | 1209 | |
c594dbfa CY |
1210 | *** When typing in a password in the echo area, C-y yanks the current |
1211 | kill into the password. | |
16e82271 | 1212 | |
e02ec85e EZ |
1213 | *** Tooltip frame parameters `font' and `color' in `tooltip-frame-parameters' |
1214 | are ignored. Customize the `tooltip' face instead. | |
16e82271 | 1215 | |
53374291 | 1216 | *** `mkdir' is a new convenience alias for `make-directory'. |
09e18d03 CY |
1217 | \f |
1218 | * New Modes and Packages in Emacs 23.1 | |
e11910e2 GM |
1219 | |
1220 | ** Auto Composition Mode is a minor mode that composes characters | |
1221 | automatically when they are displayed. It is globally on by default. | |
1222 | It uses `auto-composition-function' (default `auto-compose-chars'). | |
1223 | ||
09e18d03 | 1224 | ** Bubbles, a new game, is similar to SameGame. |
60959d23 CY |
1225 | |
1226 | ** Buffer Face mode is a minor mode for remapping the default face in | |
1227 | the current buffer. The variable `buffer-face-mode-face' specifies | |
1228 | the face to remap to. The command `buffer-face-set' prompts for a | |
1229 | face name, sets `buffer-face-mode-face' to it, and enables | |
1230 | buffer-face-mode. See "Face changes", under Editing Changes, for a | |
1231 | description of face remapping. | |
1232 | ||
18e4b9bd JL |
1233 | ** butterfly flips the desired bit on the drive platter. |
1234 | See http://xkcd.com/378/ | |
f6b26818 | 1235 | |
7ef39c6e GM |
1236 | ** bug-reference.el provides clickable links to bug reports. |
1237 | ||
09e18d03 CY |
1238 | ** dbus.el provides D-Bus language bindings. |
1239 | D-Bus is an inter-process communication mechanism for applications | |
b350bdf2 | 1240 | residing on the same host. See the manual for details. |
09e18d03 | 1241 | |
85c78c0f | 1242 | ** DocView mode allows viewing of PDF, PostScript and DVI documents. |
b350bdf2 CY |
1243 | One can also search for a regular expression in the document. For |
1244 | details, see the commentary in doc-view.el. | |
09e18d03 | 1245 | |
4545a339 CY |
1246 | PDF and DVI files are now opened in Doc View mode by default. |
1247 | ||
1248 | In Postcript mode, C-c C-c launches Doc View minor mode for viewing | |
1249 | the postscript file. | |
5ed3edfa | 1250 | |
b350bdf2 CY |
1251 | ** EasyPG provides an interface to the GNU Privacy Guard (GnuPG). |
1252 | It includes a GnuPG keyring browser, cryptographic operations on | |
1253 | regions and files, and automatic encryption of *.gpg files. For | |
1254 | details, see the EasyPG Assistant User's Manual. | |
09e18d03 CY |
1255 | |
1256 | ** json.el is a library for parsing and generating JSON | |
1257 | (JavaScript Object Notation), a lightweight data-interchange format. | |
1258 | ||
1259 | ** linum.el is a new minor mode to display line numbers for the | |
1260 | current buffer. | |
1261 | ||
4b4eb083 CY |
1262 | ** mairix.el is an interface to mairix, a free tool for indexing and |
1263 | searching locally stored mail. It allows you to query mairix and | |
1264 | display the search results with Rmail, Gnus and VM. Note that there | |
1265 | is an existing Gnus back end, nnmairix.el, which should be used with | |
1266 | Maildir/MH setups. | |
1267 | ||
e94d0645 | 1268 | ** minibuffer-depth-indicate-mode shows the minibuffer depth in the prompt. |
09e18d03 CY |
1269 | |
1270 | ** nXML Mode | |
1271 | This is a new mode for editing XML documents. It allows a schema to | |
1272 | be associated with the XML document being edited, using Relax NG as | |
1273 | the schema language. The schema is used to provide two key features: | |
1274 | ||
1275 | *** Continuous validation. nXML validates as you type, highlighting | |
1276 | any invalid parts of your document. | |
1277 | ||
1278 | *** Completion. nXML can assist you in entering an element name, | |
1279 | attribute name or data value by using information about what is | |
1280 | allowed by the schema in that context. | |
1281 | ||
efdd80c6 DN |
1282 | ** proced.el provides a Dired-like interface for operating on |
1283 | processes. Proced makes an Emacs buffer containing a listing of the | |
1284 | current processes. You can use the normal Emacs commands to move | |
1285 | around in this buffer, and special Proced commands to operate on the | |
1286 | processes listed. It is currently only functional on GNU/Linux, | |
1287 | MS-Windows and Solaris. | |
09e18d03 CY |
1288 | |
1289 | ** Remember Mode is a mode for jotting down things to remember. | |
1290 | Notes can be saved to a Diary file. For details, see the Remember | |
1291 | Manual. | |
1292 | ||
b1c3a827 | 1293 | ** RST mode is a major mode for editing reStructuredText files. |
c2d0b538 | 1294 | |
17a937cc CY |
1295 | ** Ruby mode is a major mode for Ruby files. |
1296 | ||
12f165e9 CY |
1297 | ** Visual Line mode provides support for editing by visual lines. |
1298 | It turns on word-wrapping in the current buffer, and rebinds C-a, C-e, | |
1299 | and C-k to commands that operate by visual lines instead of logical | |
1300 | lines. This is a more reliable replacement for longlines-mode. | |
697f6b43 CY |
1301 | This can also be turned on using the menu bar, via |
1302 | Options -> Line Wrapping in this Buffer -> Word Wrap | |
12f165e9 | 1303 | |
0c68a24b MA |
1304 | ** xesam.el is an implementation of Xesam, an interface to (desktop) |
1305 | search engines like Beagle, Strigi, and Tracker. The Xesam API | |
1306 | requires D-Bus for communication. | |
1307 | ||
09e18d03 CY |
1308 | ** zeroconf.el offers service discovery and service publishing |
1309 | interfaces according to the zeroconf specification. It communicates | |
1310 | with Avahi, a zeroconf implementation, via D-Bus messages on systems | |
1311 | which have installed this software. | |
1312 | ||
d332a7a4 GM |
1313 | ** There is a new `whitespace' package. |
1314 | (The pre-existing one has been renamed to `old-whitespace'.) | |
1315 | Now, besides reporting bogus blanks, the whitespace package has a | |
1316 | minor mode and a global minor mode to visualize blanks (TAB, (HARD) | |
1317 | SPACE and NEWLINE). The visualization is made via faces and/or display | |
1318 | table. It can also indicate lines that extend beyond a given column, | |
1319 | trailing blanks, and empty lines at the start or end of a buffer. | |
1320 | See `whitespace-style' for more details. The `whitespace-action' option | |
1321 | specifies what to do when a buffer is visited, killed, or written. | |
4e5a8be9 | 1322 | |
09e18d03 CY |
1323 | \f |
1324 | * Changes in Specialized Modes and Packages in Emacs 23.1 | |
1325 | ||
1326 | ** Abbrev has been rewritten in Elisp and extended with more flexibility. | |
16e82271 | 1327 | |
e047f448 | 1328 | *** New functions: abbrev-get, abbrev-put, abbrev-table-get, abbrev-table-put, |
da14b7ca | 1329 | abbrev-table-p, abbrev-insert, abbrev-table-menu. |
16e82271 | 1330 | |
e047f448 | 1331 | *** Special hook `abbrev-expand-functions' obsoletes `pre-abbrev-expand-hook'. |
16e82271 | 1332 | |
e047f448 | 1333 | *** `make-abbrev-table', `define-abbrev', `define-abbrev-table' all take |
da14b7ca | 1334 | extra arguments for arbitrary properties. |
16e82271 | 1335 | |
e047f448 | 1336 | *** New variable `abbrev-minor-mode-table-alist'. |
16e82271 | 1337 | |
e047f448 | 1338 | *** `local-abbrev-table' can hold a list of abbrev-tables. |
16e82271 | 1339 | |
e047f448 | 1340 | *** Abbrevs have now the following special properties: |
da14b7ca | 1341 | `:count', `:system', `:enable-function', `:case-fixed'. |
16e82271 | 1342 | |
e047f448 | 1343 | *** Abbrev-tables have now the following special properties: |
da14b7ca JB |
1344 | `:parents', `:case-fixed', `:enable-function', `:regexp', |
1345 | `abbrev-table-modiff'. | |
e047f448 | 1346 | |
09e18d03 | 1347 | ** Apropos |
16e82271 | 1348 | |
09e18d03 | 1349 | *** `apropos-library' describes the elements defined in a given library. |
16e82271 | 1350 | |
09e18d03 | 1351 | *** Set `apropos-compact-layout' is you want a more compact (but wider) layout. |
0253fffa | 1352 | |
09e18d03 | 1353 | ** Archive Mode has basic support to browse Rar archives. |
dfa2fb2a CY |
1354 | Note, however, that the free version of the unrar command only handles |
1355 | versions 1 and 2 of the Rar format. | |
0253fffa | 1356 | |
09e18d03 | 1357 | ** BibTeX mode |
bafbec39 | 1358 | |
09e18d03 | 1359 | *** New command `bibtex-initialize' (re)initializes BibTeX buffers. |
bafbec39 | 1360 | |
09e18d03 CY |
1361 | *** New `bibtex-entry-format' options `whitespace', `braces', and |
1362 | `string', disabled by default. | |
12bbb989 | 1363 | |
09e18d03 CY |
1364 | *** New variable `bibtex-cite-matcher-alist' contains rules to |
1365 | identify cited keys in BibTeX entries, used by `bibtex-find-crossref'. | |
9097e8af | 1366 | |
09e18d03 | 1367 | *** Command `bibtex-url' allows multiple URLs per entry. |
4c24d241 | 1368 | |
3aa8040c KF |
1369 | ** Bookmarks |
1370 | ||
1371 | *** bookmark.el saves bookmarks in a pre-Emacs-23-incompatible file format | |
1372 | bookmark.el can read a .emacs.bmk file saved by an older Emacs, but an | |
1373 | older Emacs cannot read one saved by Emacs 23. | |
1374 | ||
09e18d03 | 1375 | ** Calendar and diary |
320bc739 | 1376 | |
09e18d03 CY |
1377 | *** There is a new date style, `iso', essentially year/month/day. |
1378 | The variable `european-calendar-style' is obsolete - use `calendar-date-style'. | |
1379 | Similarly, the commands `american-calendar' and `european-calendar' | |
1380 | should be replaced by `calendar-set-date-style'. | |
c3bb6fdb | 1381 | |
09e18d03 CY |
1382 | *** The calendar namespace has been rationalized. |
1383 | All functions and variables now begin with a `calendar-', `diary-', or | |
1384 | `holiday-' prefix. The various calendar systems have secondary | |
1385 | prefixes, eg `calendar-french-'. The old names you are likely to use | |
1386 | directly still exist, for the time being, as aliases, but please start | |
1387 | using the new names. | |
1388 | ||
e889393b GM |
1389 | *** The whitespace in the calendar layout can be customized. |
1390 | See the variables: | |
1391 | calendar-left-margin, calendar-intermonth-spacing, calendar-column-width, | |
1392 | calendar-day-header-width, and calendar-day-digit-width. | |
1393 | ||
1394 | *** Text (e.g. ISO weeks) can be displayed between the calendar months. | |
1395 | See the variables calendar-intermonth-header and calendar-intermonth-text. | |
1396 | ||
09e18d03 CY |
1397 | *** The function `holiday-chinese' computes holidays on the Chinese calendar. |
1398 | It has been used to add items to the list `holiday-oriental-holidays'. | |
1399 | ||
1400 | *** `diary-remind' accepts a negative number -DAYS as a shorthand for | |
1401 | the list (1 2 ... DAYS). | |
24cdde13 | 1402 | |
a6b85944 CY |
1403 | ** Change Log mode |
1404 | ||
1405 | *** The new command C-c C-f (change-log-find-file) finds the file | |
1406 | associated with the current log entry. | |
1407 | ||
1408 | *** The new command C-c C-c (change-log-goto-source) goes to the | |
1409 | source code associated with a log entry. | |
1410 | ||
76be286d | 1411 | ** Compile and grep modes |
16e82271 | 1412 | |
76be286d DN |
1413 | *** The mode-line entry for the *compilation* and *grep* buffer is color coded. |
1414 | It has different colors for to show that: (a) the command is still | |
1415 | running, (b) successful completion, (c) error. | |
16e82271 | 1416 | |
76be286d | 1417 | *** compilation-auto-jump-to-first-error tells `compile' to jump to |
813fb3fe | 1418 | the first error encountered during compilations. |
16e82271 | 1419 | |
194894cb CY |
1420 | *** compilation-scroll-output accepts a new value, `first-error', which |
1421 | says to stop auto scrolling at the first error that occurs. | |
16e82271 | 1422 | |
0b22a5e1 | 1423 | *** The `cc' alias for C++ files in `grep-file-aliases' has been |
2e538385 | 1424 | improved. `hh' can be used to match C++ header files and `cchh' both |
0b22a5e1 DN |
1425 | C++ sources and headers. |
1426 | ||
d332a7a4 GM |
1427 | ** Copyright |
1428 | ||
1429 | *** You can specify your copyright holders' names. | |
1430 | Only copyright lines with holders matching `copyright-names-regexp' are | |
1431 | considered for update. | |
1432 | ||
1433 | *** Copyrights can be at the end of the buffer. | |
1434 | This is controlled by `copyright-at-end-flag' (used by, e.g., change-log-mode). | |
1435 | ||
09e18d03 | 1436 | ** Custom |
16e82271 | 1437 | |
09e18d03 | 1438 | *** defcustom accepts new keyword arguments, `:safe' and `:risky', which |
b68769f2 GM |
1439 | set a variable's `safe-local-variable' and `risky-local-variable' property. |
1440 | ||
09e18d03 | 1441 | ** Diff mode |
16e82271 | 1442 | |
09e18d03 CY |
1443 | *** diff-refine-hunk highlights word-level details of changes in a diff hunk. |
1444 | It's used automatically as you move through hunks, see | |
7381be9d | 1445 | diff-auto-refine-mode. It is bound to `C-c C-b'. |
16e82271 | 1446 | |
09e18d03 CY |
1447 | *** diff-add-change-log-entries-other-window iterates through the diff |
1448 | buffer and tries to create ChangeLog entries for each change. | |
1449 | It is bound to `C-x 4 A'. | |
16e82271 | 1450 | |
ac7020b3 DN |
1451 | *** Turning on `whitespace-mode' in a diff buffer will show trailing |
1452 | whitespace problems in the modified lines. | |
d332a7a4 | 1453 | |
71554a21 | 1454 | ** Dired |
16e82271 | 1455 | |
71554a21 JL |
1456 | *** In Dired, C-x C-q now runs the command wdired-change-to-wdired-mode, |
1457 | and C-x C-q in wdired-mode exits it with asking a question about | |
1458 | saving changes. | |
16e82271 | 1459 | |
d1949cd5 JL |
1460 | *** `&' runs the command `dired-do-async-shell-command' that executes |
1461 | the command asynchronously without the need to manually add ampersand | |
1462 | to the end of the command. Its output appears in the buffer `*Async Shell | |
1463 | Command*'. | |
16e82271 | 1464 | |
6d9f0d00 | 1465 | *** `M-s f C-s' and `M-s f M-C-s' run Isearch that matches only at file names. |
2cb5f8ed JL |
1466 | When a new user option `dired-isearch-filenames' is t, then even ordinary |
1467 | Isearch started with `C-s' and `C-M-s' matches only at file names in the | |
1468 | Dired buffer. When `dired-isearch-filenames' is `dwim' then activation of | |
1469 | file name Isearch depends on the position of point - if point is on a file | |
1470 | name initially, then Isearch matches only file names, otherwise it matches | |
1471 | everywhere in the Dired buffer. You can toggle file names matching on or | |
1472 | off by typing `M-s f' in Isearch mode. | |
16e82271 | 1473 | |
cc3236e1 JL |
1474 | *** `M-s a C-s' and `M-s a M-C-s' run multi-file Isearch on the marked files. |
1475 | They visit the first marked file in the sequence and display the usual Isearch | |
1476 | prompt for a string or a regexp where all Isearch commands are available. | |
16e82271 | 1477 | |
71554a21 JL |
1478 | *** `Q' in Dired provides two new keys for multi-file replacement. |
1479 | The upper case key `Y' replaces all remaining matches in all remaining files | |
1480 | with no more questions. The upper case key `N' stops doing replacements | |
1481 | in the current file and skips to the next file. These multi-file keys | |
1482 | are available for all commands that use `tags-query-replace' | |
1483 | including `dired-do-query-replace-regexp', `vc-dir-query-replace-regexp', | |
1484 | `reftex-query-replace-document'. | |
1485 | ||
09e18d03 | 1486 | ** Fortran |
16e82271 | 1487 | |
77a00355 GM |
1488 | *** The line length of fixed-form Fortran is not fixed at 72 any more. |
1489 | Customize the variable `fortran-line-length' to change it. | |
117d3cc5 | 1490 | |
09e18d03 CY |
1491 | *** In Fortran mode, M-; is now bound to the standard comment-dwim, |
1492 | rather than fortran-indent-comment. | |
76be286d | 1493 | |
09e18d03 | 1494 | *** (The increasingly misnamed) F90 mode supports Fortran 2003 syntax. |
b592c357 | 1495 | |
09e18d03 | 1496 | ** Gnus |
6653c6b7 | 1497 | |
09e18d03 | 1498 | *** The Gnus package has been updated |
da0bbbc4 | 1499 | There are many new features, bug fixes and improvements; see the file |
09e18d03 | 1500 | GNUS-NEWS or the node "No Gnus" in the Gnus manual for details. |
db86064f | 1501 | |
09e18d03 | 1502 | *** In Emacs 23, Gnus uses Emacs' new internal coding system `utf-8-emacs' for |
da0bbbc4 | 1503 | saving articles, drafts, and ~/.newsrc.eld. These file may not be read |
09e18d03 CY |
1504 | correctly in Emacs 22 and below. If you want to Gnus across different Emacs |
1505 | versions, you may set `mm-auto-save-coding-system' to `emacs-mule'. | |
15947a44 | 1506 | |
540f3092 | 1507 | *** Passwords are consistently loaded through `auth-source' |
6d496c76 TZ |
1508 | Gnus can use `auth-source' for POP and IMAP passwords. Also see that |
1509 | `smtpmail' and `url' support `auth-source' for SMTP and HTTP/HTTPS/RSS | |
1510 | authentication respectively. | |
1511 | ||
09e18d03 | 1512 | ** Help mode |
16e82271 | 1513 | |
09e18d03 CY |
1514 | *** New macro `with-help-window' should set up help windows better |
1515 | than `with-output-to-temp-buffer' with `print-help-return-message'. | |
8f5cee6a | 1516 | |
09e18d03 CY |
1517 | *** New option `help-window-select' permits to customize whether help |
1518 | window shall be automatically selected when invoking help. | |
8f5cee6a | 1519 | |
540f3092 GM |
1520 | *** New variable `help-window-point-marker' permits one to specify a new |
1521 | position for point in help window (for example in `view-lossage'). | |
15947a44 | 1522 | |
09e18d03 | 1523 | ** Isearch |
16e82271 | 1524 | |
4f75e082 JL |
1525 | *** New command `isearch-forward-word' bound globally to `M-s w' starts |
1526 | incremental word search. New command `isearch-toggle-word' bound to the | |
1527 | same key `M-s w' in Isearch mode toggles word searching on or off | |
1528 | while Isearch is active. | |
1529 | ||
1530 | *** New command `isearch-highlight-regexp' bound to `M-s h r' in Isearch | |
1531 | mode runs `highlight-regexp' (`hi-lock-face-buffer') with the current | |
1532 | search string as its regexp argument. The same key `M-s h r' and | |
1533 | other keys on the `M-s h' prefix are bound globally to the command | |
1534 | `highlight-regexp' and other hi-lock commands. | |
16e82271 | 1535 | |
4f75e082 JL |
1536 | *** New command `isearch-occur' bound to `M-s o' in Isearch mode |
1537 | runs `occur' with the current search string. The same key `M-s o' | |
1538 | is bound globally to the command `occur'. | |
16e82271 | 1539 | |
4f75e082 JL |
1540 | *** Isearch can now search through multiple ChangeLog files. |
1541 | When running Isearch in a ChangeLog file, if the search fails, | |
09e18d03 | 1542 | then another C-s tries searching the previous ChangeLog, |
540f3092 | 1543 | if there is one (e.g. going from ChangeLog to ChangeLog.12). |
babc4609 | 1544 | This is enabled if multi-isearch-search is non-nil. |
93a142e1 | 1545 | |
babc4609 | 1546 | *** Two new commands to start Isearch on a list of marked buffers |
cc3236e1 JL |
1547 | for buff-menu.el and ibuffer.el are bound to the keys `M-s a C-s' and |
1548 | `M-s a M-C-s'. | |
16e82271 | 1549 | |
3c241617 CY |
1550 | *** The part of an Isearch that failed to match is highlighted in |
1551 | `isearch-fail' face. | |
5d503af9 | 1552 | |
4f75e082 JL |
1553 | *** `C-h C-h' in Isearch mode displays isearch-specific Help screen, |
1554 | `C-h b' displays all Isearch key bindings, `C-h k' displays the full | |
1555 | documentation of the given Isearch key sequence, `C-h m' displays | |
da0bbbc4 CY |
1556 | documentation for Isearch mode. All the other Help commands exit |
1557 | Isearch mode and execute their global definitions. | |
16e82271 | 1558 | |
09e18d03 CY |
1559 | *** When started in the minibuffer, Isearch searches in the minibuffer |
1560 | history. See `Minibuffer changes', above. | |
2793c9bb | 1561 | |
66863844 | 1562 | ** MH-E |
1e9b0fb2 | 1563 | |
d1d87851 | 1564 | *** Upgraded to MH-E version 8.2. See MH-E-NEWS for details. |
66863844 | 1565 | |
09e18d03 CY |
1566 | ** Python |
1567 | *** The file etc/emacs.py now supports both Python 2 and 3, meaning | |
1568 | that either version can be used as inferior Python by python.el. | |
c5578d5f | 1569 | |
09e18d03 CY |
1570 | *** Python mode now has `pdbtrack' functionality. When using pdb to |
1571 | debug a Python program, pdbtrack notices the pdb prompt and displays | |
1572 | the source file and line that the program is stopped at, much the same | |
1573 | way as gud-mode does for debugging C programs with gdb. | |
2793c9bb | 1574 | |
1e9b0fb2 MA |
1575 | ** Recentf |
1576 | ||
1577 | *** The default value of `recentf-keep' prevents from checking of | |
1578 | remote files, if there is no established connection to the | |
1579 | corresponding remote host. | |
1580 | ||
2d51ab64 GM |
1581 | ** Rmail |
1582 | ||
b55b134f | 1583 | *** Rmail no longer converts the messages to Babyl format. |
33b43245 GM |
1584 | Instead, it uses UNIX mbox format, both on disk and in Rmail buffers, |
1585 | and does conversion and decoding when a message is displayed. | |
b55b134f | 1586 | |
33b43245 | 1587 | The first time you visit an Rmail file in Babyl format, Rmail |
b55b134f EZ |
1588 | automatically converts it to mbox format. This is a one-time |
1589 | conversion, but it can take a few minutes, depending on how fast is | |
1590 | your machine and on the size of the file. You should find the rest of | |
1591 | Rmail usage unaltered. | |
1592 | ||
80d634b8 RS |
1593 | However, M-x set-rmail-inbox-list now lasts only for one session |
1594 | because there is no way to save the list of inbox files in an | |
1595 | mbox-format file. | |
1596 | ||
329a643c GM |
1597 | Also, whereas with Babyl format M-x find-file would switch to Rmail |
1598 | mode, with mbox format this is no longer the case (there being no way | |
bcf3f1f5 GM |
1599 | to add an "-*- rmail-*-" cookie to an mbox file). Use C-u M-x rmail |
1600 | instead. | |
329a643c | 1601 | |
33b43245 GM |
1602 | If you have written any extensions to Rmail, they are likely to need |
1603 | updating. Conceptually, the Rmail buffer that you see is no longer | |
1604 | just a narrowed portion of the whole. So you cannot access the whole | |
1605 | of a message (or message collection) by a simple save-restriction and | |
1606 | widen. Instead, there are two buffers: the rmail-buffer, and the | |
2e538385 | 1607 | rmail-view-buffer. The former is the buffer that you see, the latter |
33b43245 GM |
1608 | is invisible. Most of the time, the invisible `view' buffer contains |
1609 | the full contents of the Rmail file, and the Rmail buffer contains a | |
1610 | decoded copy of the current message (with only a subset of the | |
2e538385 | 1611 | headers). In this state, Rmail is said to be `swapped'. |
2d51ab64 | 1612 | |
33b43245 GM |
1613 | You may find the following functions useful: |
1614 | ||
1615 | `rmail-get-header' and `rmail-set-header' get or set the value of a | |
1616 | message header, whether or not it is currently visible. | |
1617 | ||
1618 | `rmail-apply-in-message' is a general purpose function that calls a | |
1619 | function (with arguments) which you specify on the full text of a given | |
1620 | message. To further narrow to just the headers, search forward for "\n\n". | |
1621 | ||
33b43245 | 1622 | *** The new command `rmail-mime' displays MIME messages. |
2e538385 | 1623 | It is bound to `v' in Rmail buffers and summaries. It displays plain |
33b43245 GM |
1624 | text and multipart messages in a temporary buffer, and offers buttons |
1625 | to save attachments. | |
1626 | ||
763e01c4 EZ |
1627 | *** The command `rmail-redecode-body' no longer accepts the optional arg RAW. |
1628 | Since Rmail now holds messages in their original undecoded form in a | |
1629 | separate buffer, `rmail-redecode-body' no longer encodes the original | |
1630 | message, and therefore there should be no need to avoid encoding it. | |
1631 | ||
80d634b8 RS |
1632 | *** The o command is now `rmail-output'. It is an all-purpose command |
1633 | for copying messages from Rmail and appending them to files. It | |
1634 | handles Babyl-format files as well as mbox-format files, and it | |
1635 | handles both kinds properly when they are visited in Emacs. It always | |
1636 | copies the full headers of the message. | |
1637 | ||
80d634b8 RS |
1638 | *** The C-o command is now `rmail-output-as-seen'. It uses |
1639 | the message as displayed, appending it to an mbox file. | |
1640 | ||
2e538385 GM |
1641 | *** The modified status of the Rmail buffer is reported in the mode-line. |
1642 | Previously, this information was hidden. | |
1643 | ||
9721264a | 1644 | ** TeX modes |
16e82271 | 1645 | |
9721264a MR |
1646 | *** New option latex-indent-within-escaped-parens |
1647 | permits to customize indentation of LaTeX environments delimited | |
1648 | by escaped parens. | |
1649 | ||
09e18d03 | 1650 | ** T-mouse Mode |
16e82271 | 1651 | |
09e18d03 CY |
1652 | *** If the gpm mouse server is running and t-mouse-mode is enabled, |
1653 | Emacs uses a Unix socket in a GNU/Linux console to talk to server, | |
1654 | rather than faking events using the client program mev. This C level | |
1655 | approach provides mouse highlighting and help echoing in the | |
1656 | minibuffer. | |
2793c9bb | 1657 | |
cc213f24 MA |
1658 | ** Tramp |
1659 | ||
1660 | *** New connection methods. | |
1661 | The new methods "plinkx", "plink2", "psftp", "sftp" and "fish" have | |
1662 | been introduced. There are also new so-called gateway methods | |
1663 | "tunnel" and "socks". | |
1664 | ||
cc2fc5a2 MA |
1665 | *** IPv6 addresses. |
1666 | IPv6 addresses are supported now as host names. They must be embedded | |
1667 | in square brackets, like in "/ssh:[::1]:". | |
1668 | ||
cc213f24 | 1669 | *** Multihop syntax has been removed. |
540f3092 | 1670 | The pseudo-method "multi" has been removed. Instead, multi hops |
cc213f24 MA |
1671 | can be specified by the new variable `tramp-default-proxies-alist'. |
1672 | ||
1673 | *** More default settings. | |
1674 | Default values can be set via the variables `tramp-default-user', | |
1675 | `tramp-default-user-alist' and `tramp-default-host'. | |
1676 | ||
1677 | *** Connection information is cached. | |
1678 | In order to reduce connection setup, information about used | |
540f3092 | 1679 | connections is kept persistently in a file. The name of this file is |
cc213f24 MA |
1680 | defined in the variable `tramp-persistency-file-name'. |
1681 | ||
1682 | *** Control of remote processes. | |
1683 | Running processes on a remote host can be controlled by settings in | |
1684 | `tramp-remote-path' and `tramp-remote-process-environment'. | |
1685 | ||
1686 | *** Success of remote copy is checked. | |
1687 | When the variable `file-precious-flag' is set, the success of a remote | |
1688 | file copy is checked via the file's checksum. | |
1689 | ||
7cba69f2 MA |
1690 | *** Passwords can be read from an authentification file. |
1691 | Tramp uses the package `auth-source' to read passwords from a file, if | |
1692 | necessary. | |
1693 | ||
289aee1c | 1694 | ** VC and related modes |
16e82271 | 1695 | |
09e18d03 CY |
1696 | *** VC now supports applying VC operations to a set of files at a time. |
1697 | This enables VC to work much more effectively with changeset-oriented | |
1698 | version-control systems such as Subversion, GNU Arch, Mercurial, Git | |
1699 | and Bzr. VC will now pass a multiple-file commit to these systems as | |
1700 | a single changeset. | |
16e82271 | 1701 | |
09e18d03 | 1702 | *** vc-dir is a new command that displays file names and their VC |
289aee1c DN |
1703 | status. It allows to apply various VC operations to a file, a |
1704 | directory or a set of files/directories. | |
16e82271 | 1705 | |
614677a0 GM |
1706 | *** VC switches are no longer appended, rather the first non-nil value is used. |
1707 | (This was for the most part true in Emacs 22, but was not advertised). | |
1708 | This is because there is an increasing variety of VC systems, and they | |
1709 | do not all accept the same "common" options. For example, a CVS diff | |
1710 | command used to append the values of `vc-cvs-diff-switches', | |
1711 | `vc-diff-switches', and `diff-switches'. Now the first non-nil value | |
1712 | from that sequence is used. The special value `t' means "no switches". | |
16e82271 | 1713 | |
09e18d03 | 1714 | *** Clicking on the VC mode-line entry now pops the VC menu. |
16e82271 | 1715 | |
09e18d03 | 1716 | *** The VC mode-line entry now has a tooltip that explains the VC file status. |
2b69181c DN |
1717 | |
1718 | *** In VC Annotate mode, the key bindings have changed to use lower | |
1719 | case keys instead of the upper case keys used in the past. | |
16e82271 | 1720 | |
09e18d03 CY |
1721 | *** In VC Annotate mode, for VC systems that support changesets, you can |
1722 | see the diff for the whole changeset (not only for the current file) | |
ee0f0556 CY |
1723 | by typing the D key. Using the "Show changeset diff of revision at |
1724 | line" menu entry does the same thing. | |
16e82271 | 1725 | |
e86fa02b | 1726 | *** In VC Annotate mode, you can type v to toggle the annotation visibility. |
16e82271 | 1727 | |
09e18d03 CY |
1728 | *** In VC Annotate mode, you can type f to show the file revision on |
1729 | the current line. | |
16e82271 | 1730 | |
09e18d03 CY |
1731 | *** Asynchronous VC commands display [Waiting...] in the mode-line |
1732 | of the corresponding buffer as long as the asynchronous process is | |
1733 | active. | |
16e82271 | 1734 | |
09e18d03 CY |
1735 | *** Log entries can be modified using the key "e" in log-view. |
1736 | For now only CVS, RCS, SCCS and SVN support this functionality. | |
1737 | This is done by the `modify-change-comment' backend function. | |
16e82271 | 1738 | |
09e18d03 CY |
1739 | *** In log-view-mode, for VC systems that support changesets, you can |
1740 | see the diff for the whole changeset (not only for the current file) | |
1741 | by typing the D key or using the "Changeset Diff" menu entry. | |
16e82271 | 1742 | |
289aee1c DN |
1743 | *** In Log Edit mode, C-c C-d now shows the diff for the files involved. |
1744 | ||
1745 | *** vc-git supports the "git grep" command. | |
16e82271 | 1746 | |
540f3092 | 1747 | *** VC Support for Meta-CVS has been removed for lack of a maintainer able |
09e18d03 | 1748 | to update it to the new VC. |
cf944fa4 | 1749 | |
d15f7b68 GM |
1750 | ** Miscellaneous |
1751 | ||
1752 | *** comint-mode uses `start-file-process' now (see Lisp Changes). | |
cc213f24 MA |
1753 | If `default-directory' is a remote file name, subprocesses are started |
1754 | on the corresponding remote system. | |
16e82271 | 1755 | |
09e18d03 CY |
1756 | *** Eldoc highlights the function argument under point |
1757 | with the face `eldoc-highlight-function-argument'. | |
16e82271 | 1758 | |
09e18d03 | 1759 | *** In Etags, the --members option is now the default. |
fffa137c | 1760 | Use --no-members if you want the old default behavior of not tagging |
09e18d03 | 1761 | struct members in C, members variables in C++ and variables in PHP. |
16e82271 | 1762 | |
09e18d03 CY |
1763 | *** The `gdb' command only works with the graphical interface now. |
1764 | Use `gud-gdb' if you want the (old) text command mode. | |
1765 | ||
1766 | *** goto-address.el provides two new minor modes, goto-address-mode and | |
1767 | goto-address-prog-mode, which buttonize URLS and email addresses. | |
1768 | ||
1769 | *** The new command `eshell/info' runs info in an eshell buffer. | |
3cf86f00 | 1770 | |
4d1e89e3 GM |
1771 | *** The new variable `ffap-rfc-directories' specifies a list of local |
1772 | directories in which `ffap-rfc' will first search for RFCs. | |
16e82271 | 1773 | |
09e18d03 CY |
1774 | *** hide-ifdef-mode allows shadowing ifdef-blocks instead of hiding them. |
1775 | See option `hide-ifdef-shadow' and function `hide-ifdef-toggle-shadowing'. | |
1776 | ||
0105dc3e | 1777 | *** `icomplete-prospects-height' now supersedes `icomplete-prospects-length'. |
09e18d03 CY |
1778 | |
1779 | *** Info displays breadcrumbs in the header of the page. | |
1780 | See Info-breadcrumbs-depth to control it. | |
1781 | ||
d2c98acc | 1782 | *** net-utils has an `iwconfig' command, similar to the existing `ifconfig'. |
b7bfcc8a | 1783 | It is used to configure wireless interfaces. |
d2c98acc | 1784 | |
09e18d03 CY |
1785 | *** The pcmpl-unix package supports hostname completion for ssh and scp. |
1786 | ||
1787 | *** sgml-electric-tag-pair-mode lets you simultaneously edit matched tag pairs. | |
1788 | ||
1789 | *** smerge-refine highlights word-level details of changes in conflict. | |
7381be9d TTN |
1790 | It's used automatically as you move through conflicts, see |
1791 | smerge-auto-refine-mode. | |
09e18d03 CY |
1792 | |
1793 | *** talk.el has been extended for multiple tty support. | |
1794 | ||
1795 | *** A new command `display-time-world' has been added to the Time | |
1796 | package. It creates a buffer with an updating time display using | |
1797 | several time zones. | |
1798 | ||
1799 | *** The appearance of superscript and subscript in TeX is more customizable. | |
1800 | See the documentation of the variables: tex-fontify-script, | |
1801 | tex-font-script-display, tex-suscript-height-ratio, and | |
1802 | tex-suscript-height-minimum. | |
1803 | ||
1804 | *** view-remove-frame-by-deleting is now by default t | |
1805 | since users found iconification of view-mode frames distracting. | |
16e82271 | 1806 | |
09e18d03 CY |
1807 | *** WoMan tries to add locale-specific manual page directories to the |
1808 | search path. This can be disabled by setting `woman-locale' to nil. | |
1809 | ||
0bfd685e GM |
1810 | \f |
1811 | * Changes in Emacs 23.1 on non-free operating systems | |
8ab314f9 | 1812 | |
203553fd JPW |
1813 | ** Case is now considered significant in completion on MS-Windows. |
1814 | The default value of `completion-ignore-case' is now nil on | |
1815 | MS-Windows, the same as it is for other operating systems. The | |
1816 | variable doesn't apply to reading a file name -- in that case Emacs | |
1817 | heeds `read-file-name-completion-ignore-case' instead. | |
1818 | ||
672f99b6 JR |
1819 | ** IPv6 is supported on MS-Windows. |
1820 | Emacs now supports IPv6 on Windows XP and later, and earlier versions | |
2660a9da | 1821 | of Windows with third party IPv6 stacks installed. In Emacs 22, IPv6 was |
672f99b6 JR |
1822 | supported on other platforms, but not on Windows due to using the winsock |
1823 | 1.1 header file, even though Emacs was linking to the winsock 2 library. | |
1824 | ||
6e344060 JR |
1825 | ** Busy cursor (hourglass) now displays on MS-Windows. |
1826 | When Emacs is busy, an hourglass mouse cursor is displayed on Windows. | |
2660a9da JR |
1827 | In Emacs 22 only X supported the busy cursor. |
1828 | ||
2660a9da JR |
1829 | ** Battery status is available on MS-Windows |
1830 | Emacs can now display the battery status in the mode-line when enabled with | |
1831 | display-battery-mode or from the Options menu. More verbose battery | |
1832 | information is also available with the command `battery'. In Emacs 22 | |
1833 | battery status was supported only on GNU/Linux and Mac. | |
6e344060 | 1834 | |
3280c5c5 JR |
1835 | ** More keys available on MS-Windows. |
1836 | Keys normally associated with IMEs, and some exotic keys not normally found | |
1837 | on standard keyboards have been given names so they can be bound to functions | |
1838 | inside Emacs. If there are keys on your keyboard that have not been exposed | |
1839 | to Emacs in the past, try C-h k to see if they are available now. | |
1840 | ||
1841 | Emacs can now bind functions to the extra buttons for media player and | |
1842 | browser control present on some keyboards. These buttons are disabled | |
1843 | by default, since enabling them prevents their system-wide use when | |
1844 | Emacs has focus. To enable them, set the variable | |
0caa490b | 1845 | w32-pass-multimedia-buttons to nil. See the doc string of that variable |
3280c5c5 | 1846 | for the list of extra keys that are available. |
2660a9da | 1847 | |
4a263588 | 1848 | ** BDF fonts no longer supported on MS-Windows. |
2e538385 | 1849 | The font backend was completely rewritten for this release. The focus |
4a263588 JR |
1850 | on Windows has been getting acceptable performance and full unicode |
1851 | support, including complex script shaping for native Windows fonts. A | |
1852 | rewrite of the BDF font support has not happened due to lack of time | |
1853 | and developers. If demand still exists for such a backend even with | |
1854 | the improved language support for native Windows fonts, future | |
1855 | development in this direction will most likely be based on the | |
1856 | freetype library, giving access to a wider range of font formats. | |
1857 | ||
0bfd685e GM |
1858 | \f |
1859 | * Incompatible Lisp Changes in Emacs 23.1 | |
8ec65cd7 | 1860 | |
fd9440c5 | 1861 | ** Variables cannot be both buffer-local and frame-local any more. |
a9b08254 | 1862 | |
fc944cd4 | 1863 | ** `functionp' returns nil for special forms. |
65f81a0b | 1864 | I.e., it only returns t for objects that can be passed to `funcall'. |
fc944cd4 | 1865 | |
d82c3d44 GM |
1866 | ** The behavior of map-char-table has changed. It may call the |
1867 | specified function with a cons (FROM . TO) as a key if characters in | |
1868 | that range have the same value. | |
1869 | ||
b350bdf2 | 1870 | ** Process changes |
16e82271 | 1871 | |
b350bdf2 | 1872 | *** The function `dired-call-process' has been removed. |
16e82271 | 1873 | |
b350bdf2 CY |
1874 | *** The multibyteness of process filters is now determined by the |
1875 | coding-system used for decoding. The functions | |
1876 | `process-filter-multibyte-p' and `set-process-filter-multibyte' are | |
1877 | obsolete. | |
03605a28 | 1878 | |
777ea444 | 1879 | ** The variable `byte-compile-warnings' can now be a list starting with `not', |
0caa490b | 1880 | meaning to disable the specified warnings. The meaning of this list |
777ea444 | 1881 | may therefore be the reverse of what you expect (of course, this is |
0caa490b | 1882 | only an issue if you make use of the new `not' syntax). Rather than |
777ea444 GM |
1883 | checking/manipulating elements directly, use the new functions |
1884 | `byte-compile-warning-enabled-p', `byte-compile-disable-warning', and | |
1885 | `byte-compile-enable-warning.' | |
1886 | ||
69df9d6d GM |
1887 | ** `mode-name' is no longer guaranteed to be a string. |
1888 | Use `(format-mode-line mode-name)' to ensure a string value. | |
1889 | ||
53ed745a CY |
1890 | ** The function x-font-family-list has been removed. |
1891 | Use the new function font-family-list (see Lisp Changes, below). | |
1892 | ||
b350bdf2 CY |
1893 | ** Internationalization changes |
1894 | ||
1895 | *** The value of the function `charset-id' is now always 0. | |
16e82271 | 1896 | |
b350bdf2 CY |
1897 | *** The functions `register-char-codings' and `coding-system-spec' |
1898 | have been removed. | |
16e82271 | 1899 | |
b350bdf2 CY |
1900 | *** The cpXXX coding systems are now supported automatically. |
1901 | The functions cp-...-codepage, which you had to use in Emacs 22 to | |
1902 | enable support for these coding systems, have been deleted. | |
16e82271 | 1903 | |
b350bdf2 | 1904 | *** The following features have been removed. They were used for |
85a1f98d GM |
1905 | displaying various scripts with specific fonts, and are no longer |
1906 | needed now that OpenType font support is available: | |
1907 | ||
b350bdf2 | 1908 | **** `devanagari' and `devan-util', and all associated devanagari-* and |
85a1f98d GM |
1909 | dev-* functions and variables (formerly used for Devanagari script). |
1910 | ||
b350bdf2 | 1911 | **** `kannada' and `knd-util', and all associated kannada-* and knd-* |
85a1f98d GM |
1912 | functions and variables (formerly used for Kannada script). |
1913 | ||
b350bdf2 | 1914 | **** `malayalam' and `mlm-util', and all associated malayalam-* and |
85a1f98d GM |
1915 | mlm-* functions and variables (formerly used for Malayalam script). |
1916 | ||
b350bdf2 | 1917 | **** `tamil' and `tml-util, and all associated tamil-* and tml-* |
85a1f98d | 1918 | functions and variables (formerly used for Tamil script). |
6a6b4d7d | 1919 | |
2d2db320 KH |
1920 | *** The meaning of NAME argument of `set-fontset-font' is changed. |
1921 | Previously nil is accepted as the default fontset. Now, nil is for | |
1922 | the fontset of the selected frame and t is for the default fontset. | |
1923 | ||
1924 | *** The meaning of FONTSET argument of `print-fontset' is changed. | |
1925 | Now, nil is for the fontset of the selected frame and t is for the | |
1926 | default fontset. | |
1927 | ||
16e82271 CY |
1928 | ** If a function in write-region-annotate-functions returns with a |
1929 | different buffer current, Emacs no longer kills that buffer | |
1930 | automatically. This behavior existed in previous versions of Emacs, | |
1931 | but was undocumented. To kill a buffer after write-region, give the | |
1932 | variable `write-region-post-annotation-function' a buffer-local value | |
1933 | of `kill-buffer'. | |
1934 | ||
55504ada | 1935 | ** The variable temp-file-name-pattern has been removed. |
f4150f61 CY |
1936 | This variable was only used by call-process-region, which now uses |
1937 | temporary-file-directory instead. | |
1938 | ||
52456e59 CY |
1939 | ** The COUNT and SYSTEM-FLAG arguments to define-abbrev have been |
1940 | removed. The function now takes extra arguments for specifying | |
1941 | arbitrary abbrev properties. | |
1942 | ||
7841339b AM |
1943 | ** end-of-defun-function is now guaranteed to work only when called |
1944 | from the start of a defun. It must now leave point exactly at the end | |
1945 | of defun, since `end-of-defun' now itself moves forward over | |
1946 | whitespace after calling it. | |
1947 | ||
0bfd685e GM |
1948 | \f |
1949 | * Lisp Changes in Emacs 23.1 | |
8ab314f9 | 1950 | |
b8afe7e4 EZ |
1951 | ** The new variable `generate-autoload-cookie' controls the magic comment |
1952 | string used by `update-file-autoloads' to find autoloaded forms. The | |
1953 | variable `generated-autoload-file' similarly controls the name of the | |
1954 | file where `update-file-autoloads' writes the calls to `autoload'. | |
1955 | The default values are ";;;###autoload" and `loaddefs.el', | |
1956 | respectively. | |
1957 | ||
a20878b6 | 1958 | ** New primitives `list-system-processes' and `process-attributes' |
5d692341 EZ |
1959 | let Lisp programs access the processes that are running on the local |
1960 | machine. See the doc strings of these functions for more details. | |
1961 | Not all platforms support accessing this information; on those that | |
1962 | don't, these primitives will return nil. | |
1963 | ||
b350bdf2 CY |
1964 | ** New variable `user-emacs-directory'. |
1965 | Use this instead of "~/.emacs.d". | |
43f8b275 | 1966 | |
b350bdf2 CY |
1967 | ** If a local hook function has a non-nil `permanent-local-hook' |
1968 | property, `kill-all-local-variables' does not remove it from the local | |
1969 | value of the hook variable; it remains even if you change major modes. | |
09e18d03 | 1970 | |
b350bdf2 CY |
1971 | ** `frame-inherited-parameters' lets new frames inherit parameters from |
1972 | the selected frame. | |
09e18d03 | 1973 | |
b350bdf2 CY |
1974 | ** New keymap `input-decode-map' overrides like key-translation-map, but |
1975 | applies before function-key-map. Also it is terminal-local contrary to | |
1976 | key-translation-map. Terminal-specific key-sequences are generally added to | |
1977 | this map rather than to function-key-map now. | |
09e18d03 | 1978 | |
b350bdf2 | 1979 | ** `ignore-errors' is now a standard macro (does not require the CL package). |
09e18d03 | 1980 | |
b350bdf2 CY |
1981 | ** `interprogram-paste-function' can now return one string or a list |
1982 | of strings. In the latter case, Emacs puts the second and following | |
1983 | strings on the kill ring. | |
09e18d03 | 1984 | |
b350bdf2 CY |
1985 | ** In `condition-case', a handler can specify "let the debugger run first". |
1986 | You do this by writing `debug' in the list of conditions to be handled, | |
1987 | like this: | |
09e18d03 | 1988 | |
b350bdf2 CY |
1989 | (condition-case nil |
1990 | (foo bar) | |
1991 | ((debug error) nil)) | |
09e18d03 | 1992 | |
b350bdf2 | 1993 | ** clone-indirect-buffer now runs the clone-indirect-buffer-hook. |
09e18d03 | 1994 | |
7841339b AM |
1995 | ** `beginning-of-defun-function' now takes one argument, the count given to |
1996 | `beginning-of-defun'. (N.B. `end-of-defun-function' doesn't take any | |
1997 | arguments.) | |
09e18d03 | 1998 | |
b350bdf2 CY |
1999 | ** `file-remote-p' has new optional parameters IDENTIFICATION and CONNECTED. |
2000 | IDENTIFICATION specifies which part of the remote identifier has to be | |
2001 | returned. With CONNECTED passed non-nil, it is checked whether a | |
2002 | remote connection has been established already. | |
09e18d03 | 2003 | |
b350bdf2 CY |
2004 | ** The new macro `declare-function' suppresses compiler warnings about |
2005 | undefined functions. | |
a1562258 | 2006 | |
b350bdf2 | 2007 | ** Changes to interactive function handling |
8ba31f36 | 2008 | |
b350bdf2 CY |
2009 | *** The new interactive spec code ^ says to first call |
2010 | handle-shift-selection if shift-select-mode is non-nil, before reading | |
2011 | the command arguments. This is used for shift-selection (see above). | |
e2947429 | 2012 | |
b350bdf2 CY |
2013 | *** Built-in functions can now have an interactive specification that |
2014 | is not a prompt string. If the `intspec' parameter of a `DEFUN' | |
2015 | starts with a `(', the string is evaluated as a Lisp form. | |
e2947429 | 2016 | |
b350bdf2 CY |
2017 | *** The interactive-form of a function can be added post-facto via the |
2018 | `interactive-form' symbol property. Mostly useful to add complex | |
2019 | interactive forms to subroutines. | |
d87be1df | 2020 | |
b350bdf2 | 2021 | ** Region changes |
3ae459e5 | 2022 | |
b350bdf2 CY |
2023 | *** Commands should use `use-region-p' to test whether there is |
2024 | an active region that they should operate on. | |
3ae459e5 | 2025 | |
b350bdf2 | 2026 | *** `region-active-p' returns non-nil when Transient Mark mode is |
71b605b8 CY |
2027 | enabled and the mark is active. Most commands that act specially on |
2028 | the active region in Transient Mark mode should use `use-region-p' | |
2029 | instead of `region-active-p', because `use-region-p' obeys the new | |
2030 | user option `use-empty-active-region' (see Editing Changes, above). | |
58555d81 | 2031 | |
b350bdf2 CY |
2032 | *** If a command sets `transient-mark-mode' to (only . OLDVAL), that |
2033 | means to activate transient-mark-mode temporarily, until the next | |
2034 | unshifted point motion command or mark deactivation. Afterwards, | |
2035 | reset transient-mark-mode to the value OLDVAL. The values `only' and | |
2036 | `identity', introduced in Emacs 22, are now deprecated. | |
e5c4079c | 2037 | |
b350bdf2 | 2038 | ** Emacs session information |
13cda5f9 | 2039 | |
b350bdf2 CY |
2040 | *** The new variables `before-init-time' and `after-init-time' record the |
2041 | value of `current-time' before and after Emacs loads the init files. | |
a2bc5bdd | 2042 | |
b350bdf2 | 2043 | *** The new function `emacs-uptime' returns the uptime of an Emacs instance. |
d82c3d44 | 2044 | |
b350bdf2 CY |
2045 | *** The new function `emacs-init-time' returns the duration of the |
2046 | Emacs initialization. | |
50bfa18a | 2047 | |
b350bdf2 | 2048 | ** Changes affecting display-buffer |
16e82271 | 2049 | |
abe8f306 MR |
2050 | *** display-buffer tries to be smarter when splitting windows. |
2051 | The new option split-window-preferred-function lets you specify your own | |
2052 | function to pop up new windows. Its default value split-window-sensibly | |
2053 | can split a window either vertically or horizontally, whichever seems | |
2054 | more suitable in the current configuration. You can tune the behavior | |
2055 | of split-window-sensibly by customizing split-height-threshold and the | |
2056 | new option split-width-threshold. Both options now take the value nil | |
2057 | to inhibit splitting in one direction. Setting split-width-threshold to | |
2058 | nil inhibits horizontal splitting and gets you the behavior of Emacs 22 | |
2059 | in this respect. In any case, display-buffer may now split the largest | |
2060 | window vertically even when it is not as wide as the containing frame. | |
2d105adf | 2061 | |
f691c216 CY |
2062 | *** If pop-up-frames has the value `graphic-only', display-buffer only |
2063 | makes a separate frame on graphic displays. | |
2064 | ||
abe8f306 | 2065 | *** select-frame and set-frame-selected-window have a new optional |
ee434cb1 MR |
2066 | argument NORECORD. If non-nil, this will avoid messing with the order |
2067 | of recently selected windows and the buffer list. | |
205f3a3b | 2068 | |
781459a4 CY |
2069 | ** Window parameters can now be defined. |
2070 | These are analogous to frame parameters, but are associated with | |
2071 | individual windows. | |
16e82271 | 2072 | |
781459a4 CY |
2073 | *** The new functions window-parameters, window-parameter, and |
2074 | set-window-parameter are used to query and set window parameters. | |
2075 | ||
b350bdf2 | 2076 | ** Minibuffer and completion changes |
16e82271 | 2077 | |
b350bdf2 | 2078 | *** A list of default values can be specified for the DEFAULT argument of |
b9694062 JL |
2079 | functions `read-from-minibuffer', `read-string', `read-command', |
2080 | `read-variable', `read-buffer', `completing-read'. Elements of this list | |
2081 | are available for inserting into the minibuffer by typing `M-n'. | |
2082 | For empty input these functions return the first element of this list. | |
2083 | ||
90993beb | 2084 | *** New function `read-regexp' uses the regexp history and some useful |
4f75e082 | 2085 | regexp defaults (string at point, last Isearch/replacement regexp/string) |
90993beb JL |
2086 | via M-n when reading a regexp in the minibuffer. |
2087 | ||
b350bdf2 CY |
2088 | *** minibuffer-local-must-match-filename-map is now named |
2089 | minibuffer-local-filename-must-match-map. | |
66dc1ca2 | 2090 | |
206faa92 CY |
2091 | *** The `require-match' argument to `completing-read' accepts the new |
2092 | values `confirm-only' and `confirm-after-completion'. | |
d03b9b31 | 2093 | |
b350bdf2 | 2094 | ** Search and replacement changes |
16e82271 | 2095 | |
b350bdf2 | 2096 | *** The regexp form \(?<num>:<regexp>\) specifies the group number explicitly. |
16e82271 | 2097 | |
b350bdf2 CY |
2098 | *** New function `match-substitute-replacement' returns the result of |
2099 | `replace-match' without actually using it in the buffer. | |
c60d543d | 2100 | |
b350bdf2 | 2101 | *** The new variable `replace-search-function' determines the function |
80120f13 EZ |
2102 | to use for searching in query-replace and replace-string. The |
2103 | function it specifies is called by `perform-replace' when its 4th | |
2104 | argument is nil. | |
3ae459e5 | 2105 | |
b350bdf2 CY |
2106 | *** The new variable `replace-re-search-function' determines the |
2107 | function to use for searching in `query-replace-regexp', | |
2108 | `replace-regexp', `query-replace-regexp-eval', and | |
80120f13 EZ |
2109 | `map-query-replace-regexp'. The function it specifies is called by |
2110 | `perform-replace' when its 4th argument is non-nil. | |
4f4a84ec | 2111 | |
4f75e082 JL |
2112 | *** New keymap `search-map' bound to `M-s' provides global bindings |
2113 | for search related commands. | |
2114 | ||
2115 | *** New keymap `multi-query-replace-map' contains additonal keys bound | |
71554a21 JL |
2116 | to `automatic-all' and `exit-current' for multi-buffer interactive replacement. |
2117 | ||
b350bdf2 CY |
2118 | *** The variable `inhibit-changing-match-data', if non-nil, prevents |
2119 | the search and match primitives from changing the match data. | |
967b2682 | 2120 | |
3c241617 CY |
2121 | *** New functions `word-search-forward-lax' and `word-search-backward-lax'. |
2122 | These are like `word-search-forward and `word-search-backward', except | |
2123 | that the end of the search string need not match a word boundary, | |
2124 | unless it ends in whitespace. | |
2125 | ||
b350bdf2 | 2126 | ** File handling changes |
8bf5c8a6 | 2127 | |
b350bdf2 CY |
2128 | *** set-file-modes is now interactive and can take the mode value in |
2129 | symbolic notation thanks to auxiliary functions. | |
16e82271 | 2130 | |
291703b5 EZ |
2131 | *** file-local-variables-alist stores an alist of file-local |
2132 | variables defined in the current buffer. | |
2133 | ||
d59f7c45 | 2134 | ** Face-remapping |
16e82271 | 2135 | |
d59f7c45 CY |
2136 | *** Each face can be remapped to a different face definition using the |
2137 | variable `face-remapping-alist'. This is an alist that maps faces to | |
2138 | replacement definitions (which can be face names, lists of face names, | |
2139 | or attribute/value plists. If this variable is buffer-local, the | |
2140 | remapping occurs only in that buffer. | |
2141 | ||
2142 | *** text-scale-mode remaps the default face to a larger or smaller | |
2e538385 | 2143 | size in the current buffer. This feature is used by the Buffer Face |
d59f7c45 CY |
2144 | menu and the new `C-x C-+', `C-x C--', and `C-x C-0' commands (see |
2145 | Editing Changes, above). | |
2146 | ||
2147 | *** New functions: | |
16e82271 | 2148 | |
d59f7c45 CY |
2149 | **** `face-remap-add-relative' adds a face remapping entry to the |
2150 | current buffer. | |
16e82271 | 2151 | |
d59f7c45 CY |
2152 | **** ``face-remap-remove-relative' removes a face remapping entry from |
2153 | the current buffer. | |
16e82271 | 2154 | |
d59f7c45 | 2155 | **** `face-remap-reset-base' restores a face to its global definition. |
16e82271 | 2156 | |
d59f7c45 CY |
2157 | **** `face-remap-set-base' sets the base remapping of a face. |
2158 | ||
85c78c0f | 2159 | ** Process changes |
16e82271 | 2160 | |
b350bdf2 CY |
2161 | *** The new function `start-file-process' is similar to `start-process', |
2162 | but obeys file handlers. The file handler is chosen based on | |
2163 | `default-directory'. The functions `start-file-process-shell-command' | |
2164 | and `process-file-shell-command' are also new; they call internally | |
2165 | `start-file-process' and `process-file', respectively. | |
2166 | ||
2167 | *** The new function `process-lines' executes an external program and | |
2168 | returns its output as a list of lines. | |
63571b5a | 2169 | |
d82c3d44 GM |
2170 | ** Character code, representation, and charset changes. |
2171 | ||
16e82271 CY |
2172 | *** In multibyte buffers and strings, characters are represented by |
2173 | UTF-8 byte sequences. The character code space is now 0x0..0x3FFFFF | |
2174 | with no gap; code points 0x0..0x10FFFF are Unicode characters of the | |
2175 | same code points, while code points 0x3FFF80..0x3FFFFF are raw 8-bit | |
2176 | bytes. | |
d82c3d44 | 2177 | |
16e82271 | 2178 | *** Generic characters no longer exist. |
d82c3d44 | 2179 | |
16e82271 CY |
2180 | *** The concept of a charset has changed. A single character may |
2181 | belong to multiple charsets (e.g. a-grave, U+00E0, belongs to charsets | |
b350bdf2 | 2182 | unicode, iso-8859-1, iso-8859-3, etc). |
d82c3d44 | 2183 | |
16e82271 CY |
2184 | **** The dimension of a charset is now 1, 2, 3, or 4, and the size of |
2185 | each dimension is no longer limited to 94 or 96. | |
2186 | ||
2187 | **** A dynamic charset priority list is used to infer the charset of | |
2188 | characters for display. | |
2189 | ||
c9a1876d EZ |
2190 | *** The functions `split-char' and `make-char' now accept up to 4 |
2191 | positional codes instead of just 2. | |
2192 | ||
d82c3d44 GM |
2193 | *** The functions `encode-char' and `decode-char' now accept any character sets. |
2194 | ||
2195 | *** The function `define-charset' now accepts a completely different | |
2196 | form of arguments (old-style arguments still work). | |
2197 | ||
d82c3d44 GM |
2198 | *** The value of the function `char-charset' depends on the current |
2199 | priorities of charsets. | |
2200 | ||
d82c3d44 GM |
2201 | *** The function get-char-code-property now accepts many Unicode base |
2202 | character properties. They are `name', `general-category', | |
2203 | `canonical-combining-class', `bidi-class', `decomposition', | |
2204 | `decimal-digit-value', `digit-value', `numeric-value', `mirrored', | |
2205 | `old-name', `iso-10646-comment', `uppercase', `lowercase', and | |
2206 | `titlecase'. | |
2207 | ||
b350bdf2 CY |
2208 | *** The functions `modify-syntax-entry' and `modify-category-entry' now |
2209 | accept a cons of characters as the first argument, and modify all | |
2210 | entries in that range of characters. | |
d82c3d44 | 2211 | |
8434d0b8 EZ |
2212 | *** Use of `translation-table-for-input' for character code unification |
2213 | is now obsolete, since Emacs 23.1 and later uses Unicode as basis for | |
2214 | internal representation of characters. | |
d82c3d44 | 2215 | |
b350bdf2 | 2216 | *** New functions: |
d82c3d44 | 2217 | |
b350bdf2 CY |
2218 | **** `characterp' returns t if and only if the argument is a character. |
2219 | This replaces `char-valid-p', which is now obsolete. | |
d82c3d44 | 2220 | |
b350bdf2 | 2221 | **** `max-char' returns the maximum character code (currently #x3FFFFF). |
d82c3d44 | 2222 | |
b350bdf2 CY |
2223 | **** `define-charset-alias' defines an alias of a charset. |
2224 | ||
2225 | **** `set-charset-priority' sets priorities of charsets. | |
2226 | ||
2227 | **** `charset-priority-list' returns a prioritized list of charsets. | |
2228 | ||
2229 | **** `unibyte-string' makes a unibyte string from bytes. | |
2230 | ||
2231 | **** `define-char-code-property' defines a character code property. | |
2232 | ||
2233 | **** `char-code-property-description' returns the description string of | |
2234 | a character code property. | |
2235 | ||
2236 | *** New variables: | |
2237 | ||
2238 | **** `find-word-boundary-function-table' is a char-table of functions to | |
2239 | search for a word boundary. | |
2240 | ||
2241 | **** `char-script-table' is a char-table of script names. | |
2242 | ||
2243 | **** `char-width-table' is a char-table of character widths. | |
2244 | ||
2245 | **** `print-charset-text-property' controls how to handle `charset' text | |
2246 | property on printing a string. | |
2247 | ||
2248 | **** `printable-chars' is a char-table of printable characters. | |
d82c3d44 | 2249 | |
505d8756 | 2250 | ** Code conversion changes |
d82c3d44 GM |
2251 | |
2252 | *** The new function `define-coding-system' should be used to define a | |
2253 | coding system instead of `make-coding-system' (which is now obsolete). | |
2254 | ||
2255 | *** The functions `encode-coding-region' and `decode-coding-region' | |
2256 | have an optional 4th argument to specify where the result of | |
2257 | conversion should go. | |
2258 | ||
2259 | *** The functions `encode-coding-string' and `decode-coding-string' | |
2260 | have an optional 4th argument specifying a buffer to store the result | |
2261 | of conversion. | |
2262 | ||
b0caa7fb EZ |
2263 | *** The new variable `inhibit-null-byte-detection' controls whether to |
2264 | consider text with null bytes as binary data. By default, it is | |
2265 | `nil', and Emacs uses `no-conversion' for any text containing null | |
2266 | bytes. | |
2267 | ||
b350bdf2 | 2268 | *** The functions `set-coding-priority' and `make-coding-system' are obsolete. |
d82c3d44 | 2269 | |
b350bdf2 | 2270 | *** New functions: |
d82c3d44 | 2271 | |
b350bdf2 CY |
2272 | **** `with-coding-priority' executes Lisp code using the specified |
2273 | coding system priority order. | |
d82c3d44 | 2274 | |
b350bdf2 CY |
2275 | **** `check-coding-systems-region' checks if the text in the region is |
2276 | encodable by the specified coding systems. | |
d82c3d44 | 2277 | |
b350bdf2 | 2278 | **** `coding-system-aliases' returns a list of aliases of a coding system. |
d82c3d44 | 2279 | |
b350bdf2 CY |
2280 | **** `coding-system-charset-list' returns a list of charsets supported |
2281 | by a coding system. | |
d82c3d44 | 2282 | |
b350bdf2 CY |
2283 | **** `coding-system-priority-list' returns a list of coding systems |
2284 | ordered by their priorities. | |
2285 | ||
2286 | **** `set-coding-system-priority' sets priorities of coding systems. | |
d82c3d44 | 2287 | |
f4017dc5 KH |
2288 | **** `coding-system-from-name' returns a coding system matching with |
2289 | the argument name. | |
2290 | ||
d82c3d44 | 2291 | ** There is a new input method, Robin, different from Quail. |
0caa490b | 2292 | It has three functionalities: |
d82c3d44 GM |
2293 | i) a simple input method (converts an ASCII sequence into a string). |
2294 | ii) converts an existing buffer substring into another string | |
2295 | iii) reverse conversion (each character produced by a | |
2296 | robin rule can hold the original ASCII sequence as a char-code-property) | |
2297 | ||
2298 | *** The new function `robin-define-package' defines a Robin package. | |
2299 | ||
2300 | *** The new function `robin-modify-package' modifies an existing Robin package. | |
2301 | ||
2302 | *** The new function `robin-use-package' starts using a Robin package | |
2303 | as an input method. | |
2304 | ||
888d7d86 KH |
2305 | *** The new function `string-to-unibyte' is like `string-as-unibyte' |
2306 | but signals an error if STRING contains a non-ASCII, non-eight-bit | |
2307 | character. | |
2308 | ||
505d8756 | 2309 | ** Changes related to the new font backend |
16e82271 | 2310 | |
0c1e3f0d CY |
2311 | *** Which font backends to use can be specified by the X resource |
2312 | "FontBackend". For instance, to use both X core fonts and Xft fonts: | |
2b7a2553 | 2313 | |
b19aa6dd | 2314 | Emacs.FontBackend: x,xft |
2b7a2553 | 2315 | |
b19aa6dd GM |
2316 | If this resource is not set, Emacs tries to use all font backends |
2317 | available on your graphic device. | |
16e82271 | 2318 | |
d82c3d44 GM |
2319 | *** New frame parameter `font-backend' specifies a list of |
2320 | font-backends supported by the frame's graphic device. On X, they are | |
2321 | currently `x' and `xft'. | |
2322 | ||
b350bdf2 CY |
2323 | *** The function `set-fontset-font' now accepts a script name as the |
2324 | second argument, and has an optional 5th argument to control how to | |
2325 | set the font. | |
bd9d28f7 | 2326 | |
b350bdf2 | 2327 | *** New functions: |
16e82271 | 2328 | |
b350bdf2 | 2329 | **** `fontp' checks if the argument is a font-spec or font-entity. |
16e82271 | 2330 | |
b350bdf2 | 2331 | **** `font-spec' creates a new font-spec object. |
16e82271 | 2332 | |
b350bdf2 | 2333 | **** `font-get' returns a font property value. |
16e82271 | 2334 | |
b350bdf2 | 2335 | **** `font-put' sets a font property value. |
16e82271 | 2336 | |
b350bdf2 | 2337 | **** `font-face-attributes' returns a plist of face attributes set by a font. |
16e82271 | 2338 | |
b350bdf2 | 2339 | **** `list-fonts' returns a list of font-entities matching a font spec. |
16e82271 | 2340 | |
543e6d09 | 2341 | **** `find-font' returns the font-entity best matching the given font spec. |
16e82271 | 2342 | |
ae525471 | 2343 | **** `font-family-list' returns a list of family names of available fonts. |
16e82271 | 2344 | |
b350bdf2 CY |
2345 | **** `font-xlfd-name' returns an XLFD name of a given font spec, font |
2346 | entity, or font object. | |
16e82271 | 2347 | |
b350bdf2 | 2348 | **** `clear-font-cache' clears all font caches. |
d82c3d44 | 2349 | |
b350bdf2 | 2350 | ** Changes related to multiple-terminal (multi-tty) support |
24cdde13 | 2351 | |
b12f6e85 SM |
2352 | *** $TERM is now set to `dumb' for subprocesses. If you want to know the |
2353 | $TERM inherited by Emacs you will have to look inside initial-environment. | |
2354 | ||
6168122d SM |
2355 | *** $DISPLAY is now dynamically inherited from the frame's `display'. |
2356 | ||
b350bdf2 | 2357 | *** The `window-system' variable is now frame-local. The new |
24cdde13 | 2358 | `initial-window-system' variable contains the `window-system' value |
bbe3eb99 GM |
2359 | for the first frame. `window-system' is also now a function that |
2360 | takes a frame argument. | |
24cdde13 | 2361 | |
b350bdf2 CY |
2362 | *** The `keyboard-translate-table' variable and the terminal and |
2363 | keyboard coding systems are now terminal-local. | |
2364 | ||
24cdde13 GM |
2365 | *** You can specify a terminal device (`tty' parameter) and a terminal |
2366 | type (`tty-type' parameter) to `make-terminal-frame'. | |
2367 | ||
24cdde13 | 2368 | *** The function `make-frame-on-display' now works during a tty |
4e598d29 | 2369 | session. |
24cdde13 | 2370 | |
1e637a9f EZ |
2371 | *** A new `terminal' data type. |
2372 | The functions `get-device-terminal', `terminal-parameters', | |
765980a4 | 2373 | `terminal-parameter', `set-terminal-parameter' use this data type. |
24cdde13 | 2374 | |
b350bdf2 CY |
2375 | *** Function key sequences are now mapped using `local-function-key-map', |
2376 | a new variable. This inherits from the global variable function-key-map, | |
2377 | which is not used directly any more. | |
92cd6a7c | 2378 | |
b350bdf2 | 2379 | *** New hooks: |
da406961 | 2380 | |
7082ceb2 CY |
2381 | **** before-hack-local-variables-hook is called after setting new |
2382 | variable file-local-variables-alist, and before actually applying the | |
2383 | file-local variables. | |
2384 | ||
b350bdf2 CY |
2385 | **** `suspend-tty-functions' and `resume-tty-functions' are called |
2386 | after a tty frame has been suspended or resumed, respectively. The | |
2387 | functions are called with the terminal id of the frame being | |
2388 | suspended/resumed as a parameter. | |
da406961 | 2389 | |
b350bdf2 CY |
2390 | **** The special hook `delete-terminal-functions' is called before |
2391 | deleting a terminal. | |
82866ad5 | 2392 | |
b350bdf2 | 2393 | *** New functions: |
24cdde13 | 2394 | |
490f1197 | 2395 | **** `delete-terminal' |
9f44d41a | 2396 | |
b350bdf2 | 2397 | **** `suspend-tty' |
ea2e3ef4 | 2398 | |
b350bdf2 | 2399 | **** `resume-tty'. |
8d371994 | 2400 | |
b350bdf2 | 2401 | *** `initial-environment' holds the environment inherited from Emacs's parent. |
8d371994 | 2402 | |
b350bdf2 | 2403 | ** Redisplay changes |
16e82271 | 2404 | |
b350bdf2 CY |
2405 | *** For underlined characters, the distance between the underline and |
2406 | the baseline is controlled by a new variable, `underline-minimum-offset'. | |
16e82271 | 2407 | |
b350bdf2 CY |
2408 | *** You can now pass the value of the `invisible' property to |
2409 | invisible-p to check whether it would cause the text to be invisible. | |
540f3092 GM |
2410 | This is convenient when checking invisibility of text with no buffer |
2411 | position (e.g. in before/after-strings). | |
16e82271 | 2412 | |
b350bdf2 | 2413 | *** `clear-image-cache' can be told to flush only images of a specific file. |
16e82271 | 2414 | |
0c8b58e9 CY |
2415 | *** `vertical-motion' can now be given a goal column. |
2416 | It now accepts a cons cell (COLS . LINES) in its first argument, which | |
2417 | says to stop, where possible, at a pixel x-position equal to COLS | |
2418 | times the default column width. | |
16e82271 | 2419 | |
e589455f MR |
2420 | *** redisplay-end-trigger-functions, set-window-redisplay-end-trigger, |
2421 | and window-redisplay-end-trigger are obsolete. Use `jit-lock-register' | |
2422 | instead. | |
16e82271 | 2423 | |
605bfcb3 CY |
2424 | *** The new variables `wrap-prefix' and `line-prefix' specify display |
2425 | specs which are appended at display-time to every continuation line | |
2426 | and non-continuation line, respectively. In addition, Emacs | |
2427 | recognizes the `wrap-prefix' and `line-prefix' text or overlay | |
2428 | properties; these have the same effects as the variables of the same | |
2429 | name, but take precedence. | |
e589455f | 2430 | |
9ac64acd CY |
2431 | ** The Lisp interpreter now treats non-breaking space as whitespace. |
2432 | ||
b350bdf2 | 2433 | ** Miscellaneous new functions |
9f44d41a | 2434 | |
b350bdf2 | 2435 | *** `apply-partially' performs a "curried" application of a function. |
abf13a8b | 2436 | |
b350bdf2 CY |
2437 | *** `buffer-swap-text' swaps text between two buffers. This can be |
2438 | useful for modes such as tar-mode, archive-mode, RMAIL. | |
967b2682 | 2439 | |
6880f6db CY |
2440 | *** `combine-and-quote-strings' produces a single string from a list of strings |
2441 | sticking a separator string in between each pair, and quoting those | |
2442 | strings that include the separator as their substring. Useful for | |
2443 | consing shell command lines from the individual arguments. | |
2444 | ||
2445 | *** `custom-note-var-changed' tells Custom to treat the change in a | |
2446 | certain variable as having been made within Custom. | |
b350bdf2 CY |
2447 | |
2448 | *** `face-all-attributes' returns an alist describing all the basic | |
2449 | attributes of a given face. | |
2450 | ||
6880f6db CY |
2451 | *** `format-seconds' converts a number of seconds into a readable |
2452 | string of days, hours, etc. | |
b350bdf2 CY |
2453 | |
2454 | *** `image-refresh' refreshes all images associated with a given image | |
2455 | specification. | |
64639e26 | 2456 | |
6880f6db CY |
2457 | *** `locate-user-emacs-file' helps packages to select the appropriate |
2458 | place to save user-specific files. It defaults to `user-emacs-directory' | |
2459 | unless the file already exists at $HOME. | |
2460 | ||
6880f6db CY |
2461 | *** `read-color' reads a color name using the minibuffer. |
2462 | ||
6880f6db CY |
2463 | *** `read-shell-command' does what its name says, with completion. It |
2464 | uses the minibuffer-local-shell-command-map for that. | |
2465 | ||
6880f6db CY |
2466 | *** `split-string-and-unquote' splits a string into a list of substrings |
2467 | on the boundaries of a given delimiter, and unquotes the substrings that | |
2468 | are quoted. Useful for taking apart shell commands. | |
2469 | ||
b350bdf2 | 2470 | *** The two new functions `looking-at-p' and `string-match-p' can do |
45595a4f RS |
2471 | the same matching as `looking-at' and `string-match' without changing |
2472 | the match data. | |
89835619 | 2473 | |
81efacf9 CY |
2474 | *** The two new functions `make-serial-process' and |
2475 | `serial-process-configure' provide a Lisp interface to the new serial | |
2476 | port support (see Emacs changes, above). | |
2477 | ||
b350bdf2 CY |
2478 | ** Miscellaneous new variables |
2479 | ||
28aaa255 CY |
2480 | *** `auto-save-include-big-deletions', if non-nil, means auto-save is |
2481 | not turned off automatically after a big deletion. | |
2482 | ||
91f68422 CY |
2483 | *** `read-circle', if nil, disables the reading of recursive Lisp |
2484 | structures using the #N= and #N# syntax. | |
2485 | ||
b350bdf2 CY |
2486 | *** `this-command-keys-shift-translated' is non-nil if the key |
2487 | sequence invoking the current command was found by shift-translation. | |
2488 | ||
2489 | *** `window-point-insertion-type' determines the insertion-type of the | |
2490 | marker used for window-point. | |
2491 | ||
2492 | *** bookmark provides `bookmark-make-record-function' so special major | |
2493 | modes like Info can teach bookmark.el how to save and restore the | |
2494 | relevant data. | |
2495 | ||
b350bdf2 CY |
2496 | *** `fill-forward-paragraph-function' specifies which function the |
2497 | filling code should use to find paragraph boundaries. | |
2498 | ||
9bae34bf | 2499 | \f |
0bfd685e | 2500 | * New Packages for Lisp Programming in Emacs 23.1 |
efeb796b | 2501 | |
b350bdf2 CY |
2502 | ** The new package avl-tree.el deals with the AVL tree data structure. |
2503 | ||
2504 | ** The new package check-declare.el verifies the accuracy of | |
2505 | declare-function macros (see Lisp Changes, above). | |
d445b3f8 | 2506 | |
20202f5e | 2507 | ** find-cmd.el can build `find' commands using lisp syntax. |
6dfcbe31 | 2508 | |
babc4609 JL |
2509 | ** The package misearch.el has been added. It allows Isearch to search |
2510 | through multiple buffers. A variable `multi-isearch-next-buffer-function' | |
2511 | defines the function to call to get the next buffer to search in the series | |
b0d6136e | 2512 | of multiple buffers. Top-level functions `multi-isearch-buffers', |
babc4609 JL |
2513 | `multi-isearch-buffers-regexp', `multi-isearch-files' and |
2514 | `multi-isearch-files-regexp' accept a single argument that specifies | |
2515 | a list of buffers/files to search for a string/regexp. | |
9097e8af | 2516 | |
b350bdf2 CY |
2517 | ** The new major mode `special-mode' is intended as a parent for |
2518 | major modes such as those that set the "'mode-class 'special" property. | |
d53a60a6 | 2519 | |
05197f40 | 2520 | \f |
a933dad1 | 2521 | ---------------------------------------------------------------------- |
5b87ad55 | 2522 | This file is part of GNU Emacs. |
a933dad1 | 2523 | |
ab73e885 | 2524 | GNU Emacs is free software: you can redistribute it and/or modify |
5b87ad55 | 2525 | it under the terms of the GNU General Public License as published by |
ab73e885 GM |
2526 | the Free Software Foundation, either version 3 of the License, or |
2527 | (at your option) any later version. | |
5b87ad55 GM |
2528 | |
2529 | GNU Emacs is distributed in the hope that it will be useful, | |
2530 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
2531 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
2532 | GNU General Public License for more details. | |
a933dad1 | 2533 | |
5b87ad55 | 2534 | You should have received a copy of the GNU General Public License |
ab73e885 | 2535 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
a933dad1 | 2536 | |
05197f40 | 2537 | \f |
a933dad1 DL |
2538 | Local variables: |
2539 | mode: outline | |
2540 | paragraph-separate: "[ \f]*$" | |
2541 | end: | |
ab5796a9 | 2542 | |
a533413c | 2543 | arch-tag: e759449d-88b3-4de4-9900-3a6c3dfa23e2 |