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29b7722a | 1 | GNU Emacs NEWS -- history of user-visible changes. |
5b87ad55 | 2 | |
bb65542c | 3 | Copyright (C) 2007, 2008, 2009 Free Software Foundation, Inc. |
5b87ad55 | 4 | See the end of the file for license conditions. |
a933dad1 | 5 | |
3f7194ed | 6 | Please send Emacs bug reports to emacs-pretest-bug@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 CY |
17 | |
18 | Temporary note: | |
19 | +++ indicates that the appropriate manual has already been updated. | |
20 | --- means no change in the manuals is called for. | |
21 | When you add a new item, please add it without either +++ or --- | |
22 | so we will look at it and add it to the manual. | |
23 | ||
24 | \f | |
aa701ce8 CY |
25 | * Installation Changes in Emacs 23.2 |
26 | ||
27 | ** New configure options for Emacs developers | |
28 | These are not new features; only the configure flags are new. | |
29 | ||
30 | *** --enable-profiling builds Emacs with profiling enabled. | |
31 | This might not work on all platforms. | |
32 | ||
33 | *** --enable-checking[=OPTIONS] builds emacs with extra runtime checks. | |
34 | ||
adce950d CY |
35 | * Changes in Emacs 23.2 |
36 | ||
d63a01ef CY |
37 | ** The default value of `trash-directory' has changed to nil, which |
38 | means that `move-file-to-trash' trashes files according to | |
39 | freedesktop.org specifications, the same method used by the Gnome, | |
40 | KDE, and XFCE desktops. (This change has no effect on Windows, which | |
41 | uses `system-move-file-to-trash' for trashing.) | |
42 | ||
3f1c6666 JD |
43 | +++ |
44 | ** Emacs frames can be maximized. | |
45 | The command line arguments -mm/--maximized and the value maximized to the | |
46 | frame parameter fullscreen makes the Emacs frame maximized. | |
47 | ||
7f1681d9 JD |
48 | +++ |
49 | ** New frame parameter sticky makes Emacs frames sticky in virtual desktops. | |
50 | ||
e044e4fc JD |
51 | ** The pointer now becomes invisible when typing. |
52 | Customize make-pointer-invisible to turn it off. | |
53 | ||
a59e7eed EZ |
54 | --- |
55 | ** On MS-Windows, `display-time' now displays the system load average | |
56 | as well as the time, as it does on GNU and Unix. | |
57 | ||
f4fcbe98 JL |
58 | ** Killing a buffer with a running process now asks a confirmation. |
59 | You can remove this query in two ways: either removing | |
60 | `process-kill-buffer-query-function' from `kill-buffer-query-functions' or | |
61 | setting the appropriate process flag with `set-process-query-on-exit-flag'. | |
62 | ||
7ff9d473 | 63 | +++ |
551b1ac9 CY |
64 | ** If `select-active-regions' is t, any active region automatically |
65 | becomes the primary selection (for interaction with other window | |
66 | applications). If you enable this, you might want to bind | |
67 | `mouse-yank-primary' to Mouse-2. | |
68 | ||
100b6355 KR |
69 | ** The variable `load-in-progress' won't get corrupted by binding it |
70 | with `let'. In certain situations, loading an Emacs Lisp file from | |
71 | source while in the midst of loading another file (e.g., with | |
72 | `require' or `autoload') could cause the value of `load-in-progress' | |
73 | to be corrupted once the outer load completed. Most code doesn't care | |
74 | about this, but some (like c-mode) may check it. | |
75 | ||
34481ea1 CY |
76 | ** File-local variable changes |
77 | ||
78 | *** Specifying a minor mode as a local variables enables that mode, | |
79 | unconditionally. The previous behavior, toggling the mode, was | |
80 | neither reliable nor generally desirable. | |
81 | ||
82 | *** New commands for adding and removing file-local variables: | |
83 | `add-file-local-variable', `delete-file-local-variable', | |
84 | `add-file-local-variable-prop-line', and | |
85 | `delete-file-local-variable-prop-line'. | |
86 | ||
87 | *** New commands for adding and removing directory-local variables, | |
88 | and copying them to and from file-local variable lists: | |
89 | `add-dir-local-variable', `delete-dir-local-variable', | |
90 | `copy-dir-locals-to-file-locals', | |
82941b5e JL |
91 | `copy-dir-locals-to-file-locals-prop-line' and |
92 | `copy-file-locals-to-dir-locals'. | |
93 | ||
3c736e33 KH |
94 | ** New coding system `utf-8-hfs' is available in |
95 | international/ucs-normalize.el. It is suitable for | |
96 | default-file-name-coding-system on Mac OS X. | |
97 | ||
05197f40 | 98 | \f |
0badeef4 GM |
99 | * Editing Changes in Emacs 23.2 |
100 | ||
101 | +++ | |
102 | ** The default value for `blink-matching-paren-distance' has been increased. | |
103 | ||
104 | \f | |
009c963c MA |
105 | * Changes in Specialized Modes and Packages in Emacs 23.2 |
106 | ||
d10c031a EZ |
107 | ** Calc graphing commands (`g f' etc.) now work on MS-Windows, |
108 | if you have the native Windows port of Gnuplot version 3.8 or later | |
109 | installed. | |
110 | ||
fecbcdcb GM |
111 | ** FIXME mail-user-agent change |
112 | This probably affects a lot of documentation. | |
113 | ||
ee047ec4 GM |
114 | ** FIXME gdb-mi |
115 | ||
9f18817f JL |
116 | ** Info |
117 | ||
118 | *** The new command `Info-virtual-index' bound to "I" displays a menu of | |
119 | matched topics found in the index. | |
120 | ||
f38fd73d JL |
121 | *** The new command `info-finder' replaces finder.el with a virtual Info |
122 | manual that generates an Info file which gives the same information | |
123 | through a menu structure. | |
124 | ||
009c963c MA |
125 | +++ |
126 | ** New connection methods in Tramp. | |
127 | On systems which support GVFS-Fuse, Tramp offers the new connection | |
edb54f27 | 128 | methods "dav", "davs", "obex" and "synce". |
009c963c | 129 | |
8525a1d6 MA |
130 | +++ |
131 | ** Autorevert Tail mode | |
132 | Autorevert Tail mode works now for remote files. | |
133 | ||
3c3bf6ce DN |
134 | ** VC and related modes |
135 | ||
136 | *** When a file is not found, VC will not try to check it out of RCS anymore. | |
137 | ||
e05b6a4e DN |
138 | *** vc-git changes |
139 | ||
140 | **** The new variable vc-git-add-signoff can be used to add a | |
291bc6bd DN |
141 | Signed-off-by line when committing. |
142 | ||
e05b6a4e DN |
143 | **** vc-dir displays the stash status |
144 | ||
ee047ec4 GM |
145 | ** Calendar and diary |
146 | ||
147 | --- | |
148 | *** The command `calendar-current-date' accepts an optional argument | |
149 | giving an offset from today. | |
150 | ||
7b607b73 EZ |
151 | ** Desktop |
152 | ||
153 | --- | |
8dca5052 EZ |
154 | *** The default value for `desktop-buffers-not-to-save' is nil. |
155 | This means Desktop will try restoring all buffers, when you restart | |
156 | your Emacs session. Also, `desktop-buffers-not-to-save' is only | |
157 | effective for buffers that have no associated file. If you want to | |
158 | exempt buffers that do correspond to files, customize the value of | |
159 | `desktop-files-not-to-save' instead. | |
7b607b73 | 160 | |
9f18817f JL |
161 | ** Miscellaneous |
162 | ||
163 | *** The new command `async-shell-command' bound globally to `M-&' executes | |
164 | the command asynchronously without the need to manually add ampersand to | |
165 | the end of the command. Its output appears in the buffer `*Async Shell | |
166 | Command*'. | |
0badeef4 GM |
167 | |
168 | --- | |
169 | *** Elint now uses compilation-mode, and recognizes more built-in | |
170 | functions and variables. | |
af077012 SY |
171 | |
172 | \f | |
173 | * New Modes and Packages in Emacs 23.2 | |
174 | ||
304fe7fa | 175 | ** js.el is a new major mode for JavaScript files. |
0822135e CY |
176 | |
177 | \f | |
178 | * Lisp changes in Emacs 23.2 | |
179 | ||
03a74b84 SM |
180 | ** read-key is a function halfway between read-event and read-key-sequence. |
181 | It reads a single key, but obeys input and escape sequence decoding. | |
182 | ** start-process-shell-command start-file-process-shell-command only | |
183 | take a single `command' argument any more. | |
0822135e CY |
184 | ** Hash tables have a new printed representation that is readable. |
185 | The feature `hashtable-print-readable' identifies this new | |
186 | functionality. | |
3c736e33 KH |
187 | |
188 | ** Functions performing Unicode normalization are added. They are: | |
189 | ucs-normalize-NFD-region, ucs-normalize-NFD-string, | |
190 | ucs-normalize-NFC-region, ucs-normalize-NFC-string, | |
191 | ucs-normalize-NFKD-region, ucs-normalize-NFKD-string, | |
192 | ucs-normalize-NFKC-region, ucs-normalize-NFKC-string, | |
193 | ucs-normalize-HFS-NFD-region, ucs-normalize-HFS-NFD-string, | |
194 | ucs-normalize-HFS-NFC-region, ucs-normalize-HFS-NFC-string. | |
9f18817f | 195 | |
009c963c | 196 | \f |
0bfd685e | 197 | * Installation Changes in Emacs 23.1 |
c58dccad | 198 | |
3f7194ed | 199 | ** The default X toolkit is now Gtk+, rather than Lucid. |
09e18d03 CY |
200 | The configure option `--with-gtk' has been removed. Gtk is now the |
201 | default toolkit, but you can use --with-x-toolkit=gtk if necessary. | |
3f7194ed | 202 | |
09e18d03 CY |
203 | ** New font code. |
204 | Fonts are handled by new code capable of dealing with multiple font | |
de9efca0 | 205 | backends. This uses the freetype and fontconfig libraries. |
16e82271 | 206 | |
09e18d03 CY |
207 | *** Emacs now accepts font names supplied in the fontconfig format |
208 | (e.g. "monospace-12:bold") and GTK format (e.g. "Monospace Bold 12"). | |
1abe3a1e | 209 | |
09e18d03 CY |
210 | *** Added support for local fonts (fonts installed on the machine |
211 | where Emacs is running). | |
212 | ||
213 | *** Added support for the Xft library for antialiasing. | |
214 | ||
215 | *** Added support for the otf library for complex text layout by | |
216 | OpenType fonts. | |
217 | ||
218 | *** Added support for the m17n library for text shaping. | |
15f02f65 | 219 | |
09e18d03 | 220 | ** Changes to image support |
16e82271 | 221 | |
09e18d03 | 222 | *** configure now checks for libgif before libungif when searching for |
9d3cc9b2 | 223 | a GIF library. |
16e82271 | 224 | |
09e18d03 CY |
225 | *** Emacs now supports the SVG image format through librsvg2. |
226 | ||
fab17942 JR |
227 | *** Emacs now supports multi-page TIFF images. |
228 | ||
006a2cde | 229 | ** New NeXTSTEP-based port |
3dcdb6ea | 230 | This provides support for GNUstep (via the GNUstep libraries) and Mac |
1e9b0fb2 | 231 | OS X (via the Cocoa libraries). |
043023ca | 232 | |
2e538385 | 233 | Specify --with-ns to configure for this. By default, a self-contained |
043023ca CY |
234 | app will be built (containing all lisp). To install/share lisp with |
235 | other emacsen (e.g. X11 build) use --disable-ns-self-contained. See | |
236 | nextstep/README and nextstep/INSTALL in the Emacs source directory. | |
006a2cde CY |
237 | |
238 | ** Mac OS X is no longer supported via Carbon. | |
239 | Use the NeXTSTEP port, described above. | |
36e625ec | 240 | |
09e18d03 CY |
241 | ** The new configuration option "--with-dbus" enables D-Bus language |
242 | bindings for Emacs. | |
07e5c0b0 | 243 | |
bb9f7948 EZ |
244 | ** Support for many obsolete platforms has been removed. |
245 | See the list at the end of etc/MACHINES for details. | |
16e82271 | 246 | |
09e18d03 | 247 | *** Support for systems without alloca has been removed. |
16e82271 | 248 | |
09e18d03 | 249 | *** Support for Sun windows has been removed. |
16e82271 | 250 | |
2e0ef05b | 251 | *** The `emacstool' utility has been removed. |
09e18d03 | 252 | |
006a2cde | 253 | ** The following platforms will be removed in a future Emacs version: |
9bc072cc CY |
254 | If you are still using Emacs on one of these platforms, please email |
255 | emacs-devel@gnu.org to inform the Emacs developers. | |
006a2cde | 256 | |
9bc072cc | 257 | *** Old GNU/Linux systems based on libc version 5. |
006a2cde | 258 | |
9bc072cc CY |
259 | *** Old FreeBSD, NetBSD, and OpenBSD systems based on the COFF |
260 | executable format. | |
006a2cde CY |
261 | |
262 | *** Solaris versions 2.6 and below. | |
263 | ||
32847230 CY |
264 | *** Solaris on IBM RS6000 machines. |
265 | ||
266 | *** UNIX System V (the original SysV, not later platforms based on it). | |
267 | ||
9bc072cc CY |
268 | *** Unixware on non-x86 machines. |
269 | ||
32847230 CY |
270 | *** Platforms not supporting shared libraries (i.e., requiring the |
271 | NO_SHARED_LIBS compilation flag). | |
006a2cde | 272 | |
a46ee55c GM |
273 | ** The configure options `--with-gcc', `--without-gcc' have been removed. |
274 | Configure will use gcc by default. Set the CC environment variable if | |
275 | you need control over which C compiler is used. | |
276 | ||
09e18d03 CY |
277 | ** The refcards are now shipped as PDF files. |
278 | ||
3b75ca8b GM |
279 | ** The manuals are now licensed under the GNU Free Documentation License v1.3, |
280 | or any later version. | |
281 | ||
09e18d03 CY |
282 | ** Emacs 23 comes with a new set of default icons. |
283 | Various resolutions are available as etc/images/icons/hicolor/*/apps/emacs.png. | |
284 | The Emacs 22 icon is available as `emacs22.png' in the same location. | |
4e5cdb4f | 285 | \f |
6dadd99f NR |
286 | * Changes in Emacs 23.1 |
287 | ||
09e18d03 | 288 | ** Improved X Window System support |
16e82271 | 289 | |
09e18d03 CY |
290 | *** Emacs now supports using both X displays and ttys in one session. |
291 | With an Emacs server active (M-x server-start), `emacsclient -t' | |
292 | creates a tty frame connected to the running emacs server. You can | |
293 | use any number of different ttys. `emacsclient -c' creates a new X11 | |
294 | frame on the current $DISPLAY (or a tty frame if $DISPLAY is not set). | |
e390f3a3 JD |
295 | There may be problems if a display exits unexpectedly and Emacs is compiled |
296 | with Gtk+, see etc/PROBLEMS. | |
780d7bb9 RS |
297 | |
298 | You can test for the presence of this feature in your Lisp code by | |
299 | testing for the `multi-tty' feature. | |
16e82271 CY |
300 | |
301 | *** Emacs starts in the background, as a daemon, when given the | |
eab2ee89 DN |
302 | --daemon command line argument. It disconnects from the terminal and |
303 | starts the server. Clients can connect and create graphical or | |
304 | terminal frames using emacsclient. | |
16e82271 | 305 | |
c569485c | 306 | **** emacsclient starts emacs in daemon mode and connects to it when |
82d0a250 DN |
307 | --alternate-editor="" is used (or when the evironment variable |
308 | ALTERNATE_EDITOR is set to "") and emacsclient cannot connect to an | |
c569485c DN |
309 | emacs server. |
310 | ||
09e18d03 | 311 | *** The new command close-display-connection closes a connection to a |
717c97e5 | 312 | remote display. There are some bugs for Gtk+. See etc/PROBLEMS. |
d82c3d44 | 313 | |
09e18d03 CY |
314 | *** Emacs now supports the XEmbed specification. |
315 | You can embed Emacs in another application on X11. The new command line | |
316 | option --parent-id is used to pass the parent window id to Emacs. See | |
7b476dbe JD |
317 | http://standards.freedesktop.org/xembed-spec/xembed-spec-latest.html |
318 | for details about XEmbed. | |
16e82271 | 319 | |
09e18d03 CY |
320 | *** Emacs can now set the frame opacity. |
321 | The opacity of a frame can be controlled by setting the `alpha' frame | |
322 | parameter. This only takes effect on a compositing window manager for | |
920ab46c SZ |
323 | the X Window System, such as Compiz, Beryl and Compiz Fusion, on Mac |
324 | OS X, or on Windows 2000 and later versions of Windows. | |
55f9bad5 GM |
325 | |
326 | The alpha parameter should be an integer between 0 (transparent) and | |
09e18d03 CY |
327 | 100 (opaque), or a float number between 0.0 and 1.0. It can also be a |
328 | cons cell (ACTIVE . INACTIVE), where ACTIVE is the opacity of an | |
540f3092 | 329 | active frame and INACTIVE is the opacity of non-active frames. |
55f9bad5 | 330 | |
09e18d03 CY |
331 | The variable `frame-alpha-lower-limit' defines a lower bound for the |
332 | opacity; the default is 20. | |
55f9bad5 | 333 | |
09e18d03 | 334 | ** Internationalization changes |
16e82271 | 335 | |
09e18d03 CY |
336 | *** The Emacs character set is now a superset of Unicode. |
337 | (It has about four times the code space, which should be plenty). | |
0a963185 | 338 | |
09e18d03 | 339 | The internal encoding used for buffers and strings is now |
16e82271 CY |
340 | Unicode-based and called `utf-8-emacs' (`emacs-internal' is an alias |
341 | for this). This encoding is backward-compatible with Unicode's UTF-8 | |
342 | encoding. The internal encoding previously used by Emacs, | |
343 | `emacs-mule', is still available for reading and writing files. | |
6dadd99f | 344 | |
09e18d03 CY |
345 | During byte-compilation, Emacs 23 uses `utf-8-emacs' to write files. |
346 | As a result, byte-compiled files containing non-ASCII characters can't | |
347 | be read by earlier versions of Emacs. Files compiled by Emacs 20, 21, | |
16e82271 CY |
348 | or 22 are loaded correctly as `emacs-mule' (whether or not they |
349 | contain multibyte characters). This takes somewhat more time, so it | |
350 | may be worth recompiling existing .elc files which don't need to be | |
351 | shared with older Emacsen. | |
3ae459e5 | 352 | |
09e18d03 | 353 | *** There are new coding systems/aliases; see M-x list-coding-systems. |
c2e8590b | 354 | |
09e18d03 CY |
355 | *** There is a new charset implementation with many new charsets. |
356 | See M-x list-character-sets. New charsets can be defined conveniently | |
357 | as tables of unicodes. | |
1abe3a1e | 358 | |
09e18d03 CY |
359 | *** There are new language environments for Chinese-GBK, |
360 | Chinese-GB18030, Khmer, Bengali, Punjabi, Gujarati, Oriya, Telugu, | |
361 | Sinhala, and TaiViet. | |
16e82271 | 362 | |
09e18d03 CY |
363 | *** The minor modes unify-8859-on-encoding-mode and |
364 | unify-8859-on-decoding-mode are obsolete. | |
16e82271 | 365 | |
e94d0645 JL |
366 | *** `ucs-insert' is bound to `C-x 8 RET' and in addition to hex numbers |
367 | accepts numbers in hash notation (e.g. #o21430 for octal, or #10r8984 for | |
368 | decimal). It also accepts Unicode character names with completion. | |
16e82271 | 369 | |
6d496c76 TZ |
370 | *** The `cyrillic-translit' input method supports many new characters. |
371 | Common typographical characters available from Unicode were added to | |
372 | `cyrillic-translit': punctuation marks, accented characters, fractions, | |
373 | and others. | |
374 | ||
09e18d03 | 375 | ** Emacs now supports serial port access on GNU/Linux, Unix, and |
81efacf9 CY |
376 | Windows. The new command `serial-term' starts an interactive terminal |
377 | on a serial port. The serial port can be configured at runtime with | |
378 | the mode-line mouse menu. | |
6c5d503f | 379 | |
09e18d03 | 380 | ** Menu Bar changes |
16e82271 | 381 | |
09e18d03 CY |
382 | *** In the Options menu, the "Set Default Font" item applies the |
383 | selected font to the `default' face on all frames, not just the | |
384 | current frame. Furthermore, if Emacs is compiled with both GTK and | |
385 | Fontconfig support, the "Set Default Font" item uses the GTK font | |
386 | selection dialog instead of an Emacs pop-up menu. | |
16e82271 | 387 | |
09e18d03 CY |
388 | *** The font setting chosen by "Set Default Font" is saved if the |
389 | "Save Options" item is used. | |
1b21ee06 | 390 | |
b350bdf2 CY |
391 | *** The Tools menu contains a new Encryption/Decryption submenu. |
392 | This contains commands provided by EasyPG, the newly-included | |
393 | interface to GnuPG (see New Modes and Packages). | |
16e82271 | 394 | |
81efacf9 CY |
395 | *** In the Options menu, the "Truncate Long Lines in the Buffer" entry |
396 | has been replaced with a submenu offering three different ways to | |
397 | handle long lines: truncation, continuation at the window edge, and | |
697f6b43 | 398 | the new word wrapping behavior (see Editing Changes, below). |
16e82271 | 399 | |
c1337511 DN |
400 | *** Improvements to menus for major and minor modes |
401 | More major and minor modes now have a mode specific menu, and existing | |
402 | mode menus have been improved to include more functionality. | |
403 | ||
09e18d03 | 404 | ** Mode-line changes |
16e82271 | 405 | |
09e18d03 CY |
406 | *** The mode-line displays a `@', instead of `-', if the |
407 | default-directory for the current buffer is on a remote machine. | |
16e82271 | 408 | |
09e18d03 CY |
409 | *** The mode-line displays a mode menu when mouse-1 is clicked on a |
410 | minor mode, in the same way as it already did for major modes. | |
16e82271 | 411 | |
09e18d03 CY |
412 | *** The `mode-line-emphasis' face is used to highlight certain |
413 | mode-line information (e.g. waiting for a VC command to finish). | |
16e82271 | 414 | |
c1337511 | 415 | *** The mode-line tooltips have been improved to provide more details. |
16e82271 | 416 | |
c1337511 DN |
417 | *** The VC, line/colum number and minor mode indicators on the mode |
418 | line are now interactive: mouse-1 can be used on them to pop up a menu. | |
419 | ||
b798e26a GM |
420 | ** File deletion can make use of the Recycle Bin or system Trash folder. |
421 | Set `delete-by-moving-to-trash' non-nil to use this. Deleted files | |
0956be4f | 422 | and directories will then be sent to the Recycle Bin on Windows, and |
b798e26a GM |
423 | to `trash-directory' on other systems. |
424 | ||
09e18d03 | 425 | ** Directory-local variables can now be defined. |
fc0318c6 JL |
426 | By default, Emacs looks in .dir-locals.el for directory-local |
427 | variables. For more information, see `dir-locals-set-directory-class' | |
428 | and `dir-locals-set-class-variables'. | |
307f3501 | 429 | |
b798e26a GM |
430 | ** Emacs can now use `auth-source' for authentication. |
431 | `smtpmail' and `url' (Tramp and Gnus also) use `auth-source' to obtain | |
432 | login names and passwords. The match, if found, is reported | |
433 | in *Messages* with the password blanked out. | |
434 | ||
435 | ** `where-is-preferred-modifier' can specify your favorite modifier. | |
436 | ||
6dadd99f | 437 | \f |
0bfd685e | 438 | * Startup Changes in Emacs 23.1 |
21f7b9d8 | 439 | |
3063e326 JL |
440 | ** The option `inhibit-startup-screen' (with aliases to old names |
441 | `inhibit-splash-screen' and `inhibit-startup-message') doesn't inhibit | |
442 | display of the initial message in the *scratch* buffer. If you don't | |
443 | want to display the initial message in the *scratch* buffer at startup, | |
444 | you can set the option `initial-scratch-message' to nil. | |
445 | ||
56e1896b JL |
446 | ** New user option `initial-buffer-choice' specifies what to display |
447 | after starting Emacs: startup screen, *scratch* buffer, visiting a | |
448 | file or directory. | |
449 | ||
aa5310e4 DK |
450 | ** New alias `argv' for `command-line-args-left' |
451 | This is a convenience alias, so that one can write `(pop argv)' | |
452 | inside of --eval command line arguments in order to access | |
453 | following arguments. | |
f8fd7ed3 GM |
454 | |
455 | ** The abbrev file is no longer read at startup in batch mode. | |
f36acfd9 EZ |
456 | |
457 | ** Emacs now supports invocation by an X session manager. | |
458 | It can save a session and restore it later. See the documentation of | |
459 | the functions `emacs-session-save' and `emacs-session-restore'. | |
460 | (Actually, this feature was introduced with Emacs 22, but it was not | |
461 | documented.) | |
c44da964 | 462 | \f |
0bfd685e | 463 | * Incompatible Editing Changes in Emacs 23.1 |
b58cb59f | 464 | |
d1949cd5 JL |
465 | ** In Dired, `dired-flag-garbage-files' is rebound from `&' to `%&' |
466 | on the regexp command prefix map. | |
467 | ||
117907d4 JL |
468 | ** In Dired-x, all command guesses for ! are now added to the default |
469 | list accessible by M-n instead of pushing all guesses temporarily into | |
470 | the history list. | |
471 | ||
e94d0645 JL |
472 | ** In Isearch mode, a special case of typing `C-w' at the beginning of |
473 | the minibuffer that toggles word search (i.e. using key sequences | |
474 | `C-s RET C-w' or `C-s M-e C-w') is obsolete. You can use the global key | |
475 | `M-s w' to start word search, or type `M-s w' in Isearch mode to | |
fd4c2a39 JL |
476 | toggle word search. To start nonincremental word search you can now use |
477 | `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 | 478 | |
45ad1cc5 JL |
479 | ** In Info, `Info-search' is unbound from `M-s' to allow using `M-s w' |
480 | for word search as well as other search commands from the global prefix | |
481 | key `M-s'. `Info-search' is still bound to `s', and also incremental | |
482 | search commands `C-s', `C-M-s', `C-r', `C-M-r' are available for searching | |
483 | through multiple Info nodes, together with their nonincremental versions | |
484 | `C-s RET', `C-r RET', `C-M-s RET', `C-M-r RET', `M-s w RET'. | |
485 | ||
16e82271 CY |
486 | ** In Text mode, `center-line' and `center-paragraph' are rebound from |
487 | `M-s' and `M-S' to global keys `M-o M-s' and `M-o M-S' on the global | |
488 | prefix map `M-o', which is intended for such formatting commands. | |
4e14951f | 489 | |
e405fa5f | 490 | ** The following input methods were removed in Emacs 22.2, but this was |
9a930d75 | 491 | not advertised: danish-alt-postfix, esperanto-alt-postfix, |
e405fa5f RS |
492 | finnish-alt-postfix, german-alt-postfix, icelandic-alt-postfix, |
493 | norwegian-alt-postfix, scandinavian-alt-postfix, spanish-alt-postfix, | |
494 | and swedish-alt-postfix. Use the versions without "alt-", which are | |
495 | identical. | |
0b0914ae | 496 | |
406c0f12 | 497 | \f |
0bfd685e | 498 | * Editing Changes in Emacs 23.1 |
406c0f12 | 499 | |
0c8b58e9 CY |
500 | ** The C-n and C-p line-motion commands now move by screen lines, |
501 | taking continued lines and variable-width characters into account. | |
502 | Setting `line-move-visual' to nil reverts this to the previous | |
16e82271 CY |
503 | behavior (i.e., motion by logical lines based on buffer contents |
504 | alone). | |
0c8b58e9 | 505 | |
09e18d03 | 506 | ** C-x C-c now invokes `save-buffers-kill-terminal', and C-z now |
16e82271 | 507 | invokes `suspend-frame'. These changes are for compatibility with the |
09e18d03 | 508 | new multi-tty support (see `Improved X Window System support' above). |
3ae459e5 | 509 | |
09e18d03 | 510 | ** Mark changes |
16e82271 | 511 | |
3ae459e5 | 512 | *** Transient Mark mode is now on by default. |
16e82271 | 513 | |
3ae459e5 | 514 | *** mark-even-if-inactive now defaults to t |
16e82271 | 515 | |
b350bdf2 CY |
516 | *** When Transient Mark mode is on, C-SPC C-SPC pushes a mark without |
517 | activating it. | |
16e82271 | 518 | |
3ae459e5 CY |
519 | *** When Transient Mark mode is on, M-q now fills the region if the |
520 | region is active. Otherwise, it fills the current paragraph. | |
16e82271 | 521 | |
3ae459e5 CY |
522 | *** When Transient Mark mode is on, M-$ now checks spelling of the |
523 | region if the region is active. Otherwise, it checks spelling of the | |
dc868f13 | 524 | word at point. |
16e82271 | 525 | |
3ae459e5 CY |
526 | *** When Transient Mark mode is on, TAB now indents the region if the |
527 | region is active. | |
16e82271 CY |
528 | |
529 | *** The variable `use-empty-active-region' controls whether an empty | |
530 | active region in Transient Mark mode should make commands operate on | |
531 | that empty region. | |
3ae459e5 CY |
532 | |
533 | ** Temporarily active regions | |
16e82271 | 534 | |
3ae459e5 CY |
535 | *** The new variable shift-select-mode, non-nil by default, controls |
536 | shift-selection. When Shift Select mode is on, shift-translated | |
537 | motion keys (e.g. S-left and S-down) activate and extend a temporary | |
538 | region, similar to mouse-selection. | |
16e82271 | 539 | |
3ae459e5 CY |
540 | *** Temporarily active regions, created using shift-selection or |
541 | mouse-selection, are not necessarily deactivated in the next command. | |
542 | They are only deactivated after point motion commands that are not | |
543 | shift-translated, or after commands that would ordinarily deactivate | |
544 | the mark in Transient Mark mode (e.g., any command that modifies the | |
545 | buffer). | |
546 | ||
3307af6c | 547 | ** Minibuffer and completion changes |
16e82271 | 548 | |
206faa92 CY |
549 | *** Emacs may ask for confirmation before opening a non-existent file |
550 | or buffer. By default, Emacs requests confirmation if you type RET | |
551 | immediately after TAB, and the resulting input is not an existing file | |
552 | or buffer; this usually happens when the minibuffer input did not | |
553 | complete far enough and you entered RET by mistake. In that case, | |
554 | Emacs puts the message "[Confirm]" in the minibuffer; type RET again | |
555 | to create the file or buffer. | |
556 | ||
557 | The new variable confirm-nonexistent-file-or-buffer determines whether | |
558 | Emacs asks for confirmation. The default value is `after-completion'. | |
559 | If you change it to t, Emacs always asks for confirmation; if you | |
560 | change it to nil, Emacs never asks for confirmation. | |
16e82271 | 561 | |
aea75a87 CY |
562 | *** The rules for performing completion have been changed. |
563 | When generating completion alternatives, Emacs now takes the | |
564 | minibuffer text after point, if any, into account: this text is | |
565 | treated as a substring of the remaining part of the completion | |
566 | alternative (i.e., the part not matched by the minibuffer text before | |
567 | point). If no completion alternatives are found this way, Emacs | |
568 | attempts to perform partial-completion. If still no completion | |
569 | alternatives are found, we fall back on the Emacs 22 rules for | |
570 | performing completion. | |
571 | ||
572 | The new variable `completion-styles' can be customized to choose your | |
573 | favorite completion style. | |
16e82271 | 574 | |
d47a29c1 JL |
575 | *** When M-n in the minibuffer reaches the end of the list of defaults, |
576 | it adds the completion list to the end, so next M-n continues putting | |
577 | completion items to the minibuffer. The same principle applies to | |
578 | incremental search commands as well: C-s or C-M-s starts searching | |
579 | the default values and after the end of defaults they continue | |
580 | searching minibuffer completion items. | |
16e82271 | 581 | |
09e18d03 | 582 | *** Minibuffer input of shell commands now comes with completion. |
16e82271 | 583 | |
09e18d03 CY |
584 | *** In the `C-x d' (Dired) prompt, typing M-n gives the visited file |
585 | name of the current buffer. | |
dc2f6c05 | 586 | |
09e18d03 CY |
587 | *** In the M-! (shell-command) prompt, M-n provides some default commands. |
588 | These are guessed using the file extension of the current file, based | |
589 | on the file-handlers specified in the operating system's `mailcap' | |
590 | file. The ! command in Dired (dired-do-shell-command) works | |
591 | similarly, using the file displayed on the current line. | |
117907d4 JL |
592 | |
593 | *** A list of regexp default values is available via M-n for `occur', | |
594 | `keep-lines', `flush-lines' and `how-many'. This list includes the active | |
4f75e082 JL |
595 | region in transient-mark-mode, the word under the cursor, the last Isearch |
596 | regexp, the last Isearch string and the last replacement regexp. | |
16e82271 | 597 | |
3353f870 CY |
598 | *** When enable-recursive-minibuffers is non-nil, operations which use |
599 | switch-to-buffer (such as C-x b and C-x C-f) do not fail any more when | |
600 | used in a minibuffer or a dedicated window. Instead, they fallback on | |
601 | using pop-to-buffer, which will use some other window. This change | |
602 | has no effect when enable-recursive-minibuffers is nil (the default). | |
16e82271 | 603 | |
4f75e082 JL |
604 | *** Isearch started in the minibuffer searches in the minibuffer history. |
605 | Reverse Isearch commands (C-r, C-M-r) search in previous minibuffer | |
606 | history elements, and forward Isearch commands (C-s, C-M-s) search in | |
297b8ccd JL |
607 | next history elements. When the reverse search reaches the first history |
608 | element, it wraps to the last history element, and the forward search | |
609 | wraps to the first history element. When the search is terminated, the | |
610 | history element containing the search string becomes the current. | |
16e82271 | 611 | |
6c897494 CY |
612 | *** The variable read-file-name-completion-ignore-case overrides |
613 | completion-ignore-case for file name completion. | |
16e82271 | 614 | |
6c897494 CY |
615 | *** The variable read-buffer-completion-ignore-case overrides |
616 | completion-ignore-case for buffer name completion. | |
16e82271 | 617 | |
3307af6c CY |
618 | *** The new command `minibuffer-force-complete' chooses one of the |
619 | possible completions, rather than stopping at the common prefix. | |
16e82271 | 620 | |
3307af6c CY |
621 | *** If `completion-auto-help' is `lazy', Emacs shows the completions |
622 | buffer only on the second attempt to complete. This was already | |
623 | supported in `partial-completion-mode'. | |
6c897494 | 624 | |
505d8756 | 625 | ** Face changes |
16e82271 | 626 | |
b350bdf2 CY |
627 | *** S-down-mouse-1 now pops up a menu for changing the font and text |
628 | size of the default face in the current buffer. The face is changed | |
133c4dc5 | 629 | via face remapping (see Lisp changes, below). |
16e82271 | 630 | |
5f9e21a9 CY |
631 | *** New commands to change the default face size in the current buffer. |
632 | To increase it, type `C-x C-+' or `C-x C-='. To decrease it, type | |
633 | `C-x C--'. To restore the default (global) face size, type `C-x C-0'. | |
d59f7c45 CY |
634 | These work via Text Scale mode, a new minor mode. |
635 | ||
636 | The final key in the above commands may be repeated without the | |
637 | leading `C-x', e.g. `C-x C-= C-= C-=' increases the face height by | |
638 | three steps. Each step scales the height of the default face by the | |
639 | value of the variable `text-scale-mode-step'. | |
640 | ||
60959d23 CY |
641 | *** The commands buffer-face-mode and buffer-face-set can be used to |
642 | remap the default face in the current buffer. See "Buffer Face mode", | |
643 | under New Modes and Packages. | |
f20186fd | 644 | |
09e18d03 | 645 | ** Primary selection changes |
16e82271 | 646 | |
b350bdf2 CY |
647 | *** You can disable kill ring commands from accessing the primary |
648 | selection by setting `x-select-enable-primary' to nil. | |
2e282009 | 649 | |
697f6b43 CY |
650 | ** Continuation lines can now be wrapped at word boundaries |
651 | (word-wrapping). This is controlled by the new per-buffer variable | |
652 | `word-wrap'. Word wrapping does not take place if continuation lines | |
653 | are not shown, e.g. if truncate-lines is non-nil. The most convenient | |
654 | way to enable word-wrapping is using the new minor mode Visual Line | |
655 | mode; in addition to setting `word-wrap' to t, this rebinds some | |
656 | editing commands to work on screen lines rather than text lines. See | |
657 | New Modes and Packages, below. | |
85b1de32 | 658 | |
463c6766 | 659 | ** Window management changes |
16e82271 | 660 | |
463c6766 CY |
661 | *** truncate-partial-width-windows now accepts integer values, which |
662 | specify a minimum window width for partial-width windows, below which | |
7d09b7a6 | 663 | lines are truncated. The default has been changed to 50. |
463c6766 CY |
664 | |
665 | *** The new command balance-windows-area balances windows both | |
666 | vertically and horizontally. | |
16e82271 | 667 | |
8f5cee6a MR |
668 | *** pop-to-buffer now always sets input focus when the popped-to window |
669 | is on a different frame. | |
670 | ||
09e18d03 | 671 | ** Miscellaneous changes: |
16e82271 | 672 | |
09e18d03 CY |
673 | *** C-l is bound to the new command recenter-top-bottom, rather than recenter. |
674 | This moves the current line to window center, top and bottom on | |
cdc0338e | 675 | successive invocations. |
16e82271 | 676 | |
09e18d03 | 677 | *** scroll-preserve-screen-position also preserves the column position. |
16e82271 | 678 | |
09e18d03 CY |
679 | *** If `yank-pop-change-selection' is t, rotating the kill ring also |
680 | updates the selection or clipboard to the current yank, just as M-w | |
681 | would do so with the text it copies to the kill ring. | |
16e82271 | 682 | |
09e18d03 CY |
683 | *** C-M-% now shows replacement as it would look in the buffer, with |
684 | `\N' and `\&' substituted according to the match. Old behavior can be | |
685 | restored by customizing `query-replace-show-replacement'. | |
686 | ||
687 | *** The command shell prompts for the default directory, when it is | |
688 | called with a prefix and the default directory is a remote file name. | |
689 | This is because some file name handlers (like ange-ftp) are not able to | |
690 | run processes remotely. | |
16e82271 | 691 | |
09e18d03 CY |
692 | *** The new command kill-matching-buffers kills buffers whose name |
693 | matches a regexp. | |
16e82271 | 694 | |
ae98e41f CY |
695 | *** The value of comment-style now defaults to `indent'. |
696 | Thefore, comment-start markers are inserted at the current indentation | |
697 | of the region to comment, rather than the leftmost column. | |
16e82271 | 698 | |
b350bdf2 CY |
699 | *** The new commands `pp-macroexpand-expression' and |
700 | `pp-macroexpand-last-sexp' pretty-print macro expansions. | |
16e82271 | 701 | |
018a960d EZ |
702 | *** The new command `set-file-modes' allows to set file's mode bits. |
703 | The mode bits can be specified in symbolic notation, like with GNU | |
e6979067 DN |
704 | Coreutils, in addition to an octal number. `chmod' is a new |
705 | convenience alias for this function. | |
d334fa1e | 706 | |
d2c52e26 EZ |
707 | *** `next-error-recenter' specifies how next-error should recenter the |
708 | visited source file. Its value can be a number (for example, 0 for | |
709 | top line, -1 for bottom line), or nil for no recentering. | |
16e82271 | 710 | |
c594dbfa CY |
711 | *** When typing in a password in the echo area, C-y yanks the current |
712 | kill into the password. | |
16e82271 | 713 | |
e02ec85e EZ |
714 | *** Tooltip frame parameters `font' and `color' in `tooltip-frame-parameters' |
715 | are ignored. Customize the `tooltip' face instead. | |
16e82271 | 716 | |
53374291 | 717 | *** `mkdir' is a new convenience alias for `make-directory'. |
09e18d03 CY |
718 | \f |
719 | * New Modes and Packages in Emacs 23.1 | |
e11910e2 GM |
720 | |
721 | ** Auto Composition Mode is a minor mode that composes characters | |
722 | automatically when they are displayed. It is globally on by default. | |
723 | It uses `auto-composition-function' (default `auto-compose-chars'). | |
724 | ||
09e18d03 | 725 | ** Bubbles, a new game, is similar to SameGame. |
60959d23 CY |
726 | |
727 | ** Buffer Face mode is a minor mode for remapping the default face in | |
728 | the current buffer. The variable `buffer-face-mode-face' specifies | |
729 | the face to remap to. The command `buffer-face-set' prompts for a | |
730 | face name, sets `buffer-face-mode-face' to it, and enables | |
731 | buffer-face-mode. See "Face changes", under Editing Changes, for a | |
732 | description of face remapping. | |
733 | ||
18e4b9bd JL |
734 | ** butterfly flips the desired bit on the drive platter. |
735 | See http://xkcd.com/378/ | |
f6b26818 | 736 | |
7ef39c6e GM |
737 | ** bug-reference.el provides clickable links to bug reports. |
738 | ||
09e18d03 CY |
739 | ** dbus.el provides D-Bus language bindings. |
740 | D-Bus is an inter-process communication mechanism for applications | |
b350bdf2 | 741 | residing on the same host. See the manual for details. |
09e18d03 | 742 | |
85c78c0f | 743 | ** DocView mode allows viewing of PDF, PostScript and DVI documents. |
b350bdf2 CY |
744 | One can also search for a regular expression in the document. For |
745 | details, see the commentary in doc-view.el. | |
09e18d03 | 746 | |
4545a339 CY |
747 | PDF and DVI files are now opened in Doc View mode by default. |
748 | ||
749 | In Postcript mode, C-c C-c launches Doc View minor mode for viewing | |
750 | the postscript file. | |
5ed3edfa | 751 | |
b350bdf2 CY |
752 | ** EasyPG provides an interface to the GNU Privacy Guard (GnuPG). |
753 | It includes a GnuPG keyring browser, cryptographic operations on | |
754 | regions and files, and automatic encryption of *.gpg files. For | |
755 | details, see the EasyPG Assistant User's Manual. | |
09e18d03 CY |
756 | |
757 | ** json.el is a library for parsing and generating JSON | |
758 | (JavaScript Object Notation), a lightweight data-interchange format. | |
759 | ||
760 | ** linum.el is a new minor mode to display line numbers for the | |
761 | current buffer. | |
762 | ||
4b4eb083 CY |
763 | ** mairix.el is an interface to mairix, a free tool for indexing and |
764 | searching locally stored mail. It allows you to query mairix and | |
765 | display the search results with Rmail, Gnus and VM. Note that there | |
766 | is an existing Gnus back end, nnmairix.el, which should be used with | |
767 | Maildir/MH setups. | |
768 | ||
e94d0645 | 769 | ** minibuffer-depth-indicate-mode shows the minibuffer depth in the prompt. |
09e18d03 CY |
770 | |
771 | ** nXML Mode | |
772 | This is a new mode for editing XML documents. It allows a schema to | |
773 | be associated with the XML document being edited, using Relax NG as | |
774 | the schema language. The schema is used to provide two key features: | |
775 | ||
776 | *** Continuous validation. nXML validates as you type, highlighting | |
777 | any invalid parts of your document. | |
778 | ||
779 | *** Completion. nXML can assist you in entering an element name, | |
780 | attribute name or data value by using information about what is | |
781 | allowed by the schema in that context. | |
782 | ||
efdd80c6 DN |
783 | ** proced.el provides a Dired-like interface for operating on |
784 | processes. Proced makes an Emacs buffer containing a listing of the | |
785 | current processes. You can use the normal Emacs commands to move | |
786 | around in this buffer, and special Proced commands to operate on the | |
787 | processes listed. It is currently only functional on GNU/Linux, | |
788 | MS-Windows and Solaris. | |
09e18d03 CY |
789 | |
790 | ** Remember Mode is a mode for jotting down things to remember. | |
791 | Notes can be saved to a Diary file. For details, see the Remember | |
792 | Manual. | |
793 | ||
b1c3a827 | 794 | ** RST mode is a major mode for editing reStructuredText files. |
c2d0b538 | 795 | |
17a937cc CY |
796 | ** Ruby mode is a major mode for Ruby files. |
797 | ||
12f165e9 CY |
798 | ** Visual Line mode provides support for editing by visual lines. |
799 | It turns on word-wrapping in the current buffer, and rebinds C-a, C-e, | |
800 | and C-k to commands that operate by visual lines instead of logical | |
801 | lines. This is a more reliable replacement for longlines-mode. | |
697f6b43 CY |
802 | This can also be turned on using the menu bar, via |
803 | Options -> Line Wrapping in this Buffer -> Word Wrap | |
12f165e9 | 804 | |
0c68a24b MA |
805 | ** xesam.el is an implementation of Xesam, an interface to (desktop) |
806 | search engines like Beagle, Strigi, and Tracker. The Xesam API | |
807 | requires D-Bus for communication. | |
808 | ||
09e18d03 CY |
809 | ** zeroconf.el offers service discovery and service publishing |
810 | interfaces according to the zeroconf specification. It communicates | |
811 | with Avahi, a zeroconf implementation, via D-Bus messages on systems | |
812 | which have installed this software. | |
813 | ||
d332a7a4 GM |
814 | ** There is a new `whitespace' package. |
815 | (The pre-existing one has been renamed to `old-whitespace'.) | |
816 | Now, besides reporting bogus blanks, the whitespace package has a | |
817 | minor mode and a global minor mode to visualize blanks (TAB, (HARD) | |
818 | SPACE and NEWLINE). The visualization is made via faces and/or display | |
819 | table. It can also indicate lines that extend beyond a given column, | |
820 | trailing blanks, and empty lines at the start or end of a buffer. | |
821 | See `whitespace-style' for more details. The `whitespace-action' option | |
822 | specifies what to do when a buffer is visited, killed, or written. | |
4e5a8be9 | 823 | |
09e18d03 CY |
824 | \f |
825 | * Changes in Specialized Modes and Packages in Emacs 23.1 | |
826 | ||
827 | ** Abbrev has been rewritten in Elisp and extended with more flexibility. | |
16e82271 | 828 | |
e047f448 | 829 | *** New functions: abbrev-get, abbrev-put, abbrev-table-get, abbrev-table-put, |
a3709a8c | 830 | abbrev-table-p, abbrev-insert, abbrev-table-menu. |
16e82271 | 831 | |
e047f448 | 832 | *** Special hook `abbrev-expand-functions' obsoletes `pre-abbrev-expand-hook'. |
16e82271 | 833 | |
e047f448 SM |
834 | *** `make-abbrev-table', `define-abbrev', `define-abbrev-table' all take |
835 | extra arguments for arbitrary properties. | |
16e82271 | 836 | |
e047f448 | 837 | *** New variable `abbrev-minor-mode-table-alist'. |
16e82271 | 838 | |
e047f448 | 839 | *** `local-abbrev-table' can hold a list of abbrev-tables. |
16e82271 | 840 | |
e047f448 | 841 | *** Abbrevs have now the following special properties: |
79415279 | 842 | `:count', `:system', `:enable-function', `:case-fixed'. |
16e82271 | 843 | |
e047f448 SM |
844 | *** Abbrev-tables have now the following special properties: |
845 | `:parents', `:case-fixed', `:enable-function', `:regexp', | |
846 | `abbrev-table-modiff'. | |
847 | ||
09e18d03 | 848 | ** Apropos |
16e82271 | 849 | |
09e18d03 | 850 | *** `apropos-library' describes the elements defined in a given library. |
16e82271 | 851 | |
09e18d03 | 852 | *** Set `apropos-compact-layout' is you want a more compact (but wider) layout. |
0253fffa | 853 | |
09e18d03 | 854 | ** Archive Mode has basic support to browse Rar archives. |
dfa2fb2a CY |
855 | Note, however, that the free version of the unrar command only handles |
856 | versions 1 and 2 of the Rar format. | |
0253fffa | 857 | |
09e18d03 | 858 | ** BibTeX mode |
bafbec39 | 859 | |
09e18d03 | 860 | *** New command `bibtex-initialize' (re)initializes BibTeX buffers. |
bafbec39 | 861 | |
09e18d03 CY |
862 | *** New `bibtex-entry-format' options `whitespace', `braces', and |
863 | `string', disabled by default. | |
12bbb989 | 864 | |
09e18d03 CY |
865 | *** New variable `bibtex-cite-matcher-alist' contains rules to |
866 | identify cited keys in BibTeX entries, used by `bibtex-find-crossref'. | |
9097e8af | 867 | |
09e18d03 | 868 | *** Command `bibtex-url' allows multiple URLs per entry. |
4c24d241 | 869 | |
09e18d03 | 870 | ** Calendar and diary |
320bc739 | 871 | |
09e18d03 CY |
872 | *** There is a new date style, `iso', essentially year/month/day. |
873 | The variable `european-calendar-style' is obsolete - use `calendar-date-style'. | |
874 | Similarly, the commands `american-calendar' and `european-calendar' | |
875 | should be replaced by `calendar-set-date-style'. | |
c3bb6fdb | 876 | |
09e18d03 CY |
877 | *** The calendar namespace has been rationalized. |
878 | All functions and variables now begin with a `calendar-', `diary-', or | |
879 | `holiday-' prefix. The various calendar systems have secondary | |
880 | prefixes, eg `calendar-french-'. The old names you are likely to use | |
881 | directly still exist, for the time being, as aliases, but please start | |
882 | using the new names. | |
883 | ||
e889393b GM |
884 | *** The whitespace in the calendar layout can be customized. |
885 | See the variables: | |
886 | calendar-left-margin, calendar-intermonth-spacing, calendar-column-width, | |
887 | calendar-day-header-width, and calendar-day-digit-width. | |
888 | ||
889 | *** Text (e.g. ISO weeks) can be displayed between the calendar months. | |
890 | See the variables calendar-intermonth-header and calendar-intermonth-text. | |
891 | ||
09e18d03 CY |
892 | *** The function `holiday-chinese' computes holidays on the Chinese calendar. |
893 | It has been used to add items to the list `holiday-oriental-holidays'. | |
894 | ||
895 | *** `diary-remind' accepts a negative number -DAYS as a shorthand for | |
896 | the list (1 2 ... DAYS). | |
24cdde13 | 897 | |
a6b85944 CY |
898 | ** Change Log mode |
899 | ||
900 | *** The new command C-c C-f (change-log-find-file) finds the file | |
901 | associated with the current log entry. | |
902 | ||
903 | *** The new command C-c C-c (change-log-goto-source) goes to the | |
904 | source code associated with a log entry. | |
905 | ||
76be286d | 906 | ** Compile and grep modes |
16e82271 | 907 | |
76be286d DN |
908 | *** The mode-line entry for the *compilation* and *grep* buffer is color coded. |
909 | It has different colors for to show that: (a) the command is still | |
910 | running, (b) successful completion, (c) error. | |
16e82271 | 911 | |
76be286d | 912 | *** compilation-auto-jump-to-first-error tells `compile' to jump to |
813fb3fe | 913 | the first error encountered during compilations. |
16e82271 | 914 | |
194894cb CY |
915 | *** compilation-scroll-output accepts a new value, `first-error', which |
916 | says to stop auto scrolling at the first error that occurs. | |
16e82271 | 917 | |
0b22a5e1 | 918 | *** The `cc' alias for C++ files in `grep-file-aliases' has been |
2e538385 | 919 | improved. `hh' can be used to match C++ header files and `cchh' both |
0b22a5e1 DN |
920 | C++ sources and headers. |
921 | ||
d332a7a4 GM |
922 | ** Copyright |
923 | ||
924 | *** You can specify your copyright holders' names. | |
925 | Only copyright lines with holders matching `copyright-names-regexp' are | |
926 | considered for update. | |
927 | ||
928 | *** Copyrights can be at the end of the buffer. | |
929 | This is controlled by `copyright-at-end-flag' (used by, e.g., change-log-mode). | |
930 | ||
09e18d03 | 931 | ** Custom |
16e82271 | 932 | |
09e18d03 | 933 | *** defcustom accepts new keyword arguments, `:safe' and `:risky', which |
b68769f2 GM |
934 | set a variable's `safe-local-variable' and `risky-local-variable' property. |
935 | ||
09e18d03 | 936 | ** Diff mode |
16e82271 | 937 | |
09e18d03 CY |
938 | *** diff-refine-hunk highlights word-level details of changes in a diff hunk. |
939 | It's used automatically as you move through hunks, see | |
7381be9d | 940 | diff-auto-refine-mode. It is bound to `C-c C-b'. |
16e82271 | 941 | |
09e18d03 CY |
942 | *** diff-add-change-log-entries-other-window iterates through the diff |
943 | buffer and tries to create ChangeLog entries for each change. | |
944 | It is bound to `C-x 4 A'. | |
16e82271 | 945 | |
ac7020b3 DN |
946 | *** Turning on `whitespace-mode' in a diff buffer will show trailing |
947 | whitespace problems in the modified lines. | |
d332a7a4 | 948 | |
71554a21 | 949 | ** Dired |
16e82271 | 950 | |
71554a21 JL |
951 | *** In Dired, C-x C-q now runs the command wdired-change-to-wdired-mode, |
952 | and C-x C-q in wdired-mode exits it with asking a question about | |
953 | saving changes. | |
16e82271 | 954 | |
d1949cd5 JL |
955 | *** `&' runs the command `dired-do-async-shell-command' that executes |
956 | the command asynchronously without the need to manually add ampersand | |
957 | to the end of the command. Its output appears in the buffer `*Async Shell | |
958 | Command*'. | |
16e82271 | 959 | |
6d9f0d00 | 960 | *** `M-s f C-s' and `M-s f M-C-s' run Isearch that matches only at file names. |
2cb5f8ed JL |
961 | When a new user option `dired-isearch-filenames' is t, then even ordinary |
962 | Isearch started with `C-s' and `C-M-s' matches only at file names in the | |
963 | Dired buffer. When `dired-isearch-filenames' is `dwim' then activation of | |
964 | file name Isearch depends on the position of point - if point is on a file | |
965 | name initially, then Isearch matches only file names, otherwise it matches | |
966 | everywhere in the Dired buffer. You can toggle file names matching on or | |
967 | off by typing `M-s f' in Isearch mode. | |
16e82271 | 968 | |
cc3236e1 JL |
969 | *** `M-s a C-s' and `M-s a M-C-s' run multi-file Isearch on the marked files. |
970 | They visit the first marked file in the sequence and display the usual Isearch | |
971 | prompt for a string or a regexp where all Isearch commands are available. | |
16e82271 | 972 | |
71554a21 JL |
973 | *** `Q' in Dired provides two new keys for multi-file replacement. |
974 | The upper case key `Y' replaces all remaining matches in all remaining files | |
975 | with no more questions. The upper case key `N' stops doing replacements | |
976 | in the current file and skips to the next file. These multi-file keys | |
977 | are available for all commands that use `tags-query-replace' | |
978 | including `dired-do-query-replace-regexp', `vc-dir-query-replace-regexp', | |
979 | `reftex-query-replace-document'. | |
980 | ||
09e18d03 | 981 | ** Fortran |
16e82271 | 982 | |
77a00355 GM |
983 | *** The line length of fixed-form Fortran is not fixed at 72 any more. |
984 | Customize the variable `fortran-line-length' to change it. | |
117d3cc5 | 985 | |
09e18d03 CY |
986 | *** In Fortran mode, M-; is now bound to the standard comment-dwim, |
987 | rather than fortran-indent-comment. | |
76be286d | 988 | |
09e18d03 | 989 | *** (The increasingly misnamed) F90 mode supports Fortran 2003 syntax. |
b592c357 | 990 | |
09e18d03 | 991 | ** Gnus |
6653c6b7 | 992 | |
09e18d03 CY |
993 | *** The Gnus package has been updated |
994 | There are many news features, bug fixes and improvements; see the file | |
995 | GNUS-NEWS or the node "No Gnus" in the Gnus manual for details. | |
db86064f | 996 | |
09e18d03 CY |
997 | *** In Emacs 23, Gnus uses Emacs' new internal coding system `utf-8-emacs' for |
998 | saving articles drafts and ~/.newsrc.eld. These file may not be read | |
999 | correctly in Emacs 22 and below. If you want to Gnus across different Emacs | |
1000 | versions, you may set `mm-auto-save-coding-system' to `emacs-mule'. | |
15947a44 | 1001 | |
540f3092 | 1002 | *** Passwords are consistently loaded through `auth-source' |
6d496c76 TZ |
1003 | Gnus can use `auth-source' for POP and IMAP passwords. Also see that |
1004 | `smtpmail' and `url' support `auth-source' for SMTP and HTTP/HTTPS/RSS | |
1005 | authentication respectively. | |
1006 | ||
09e18d03 | 1007 | ** Help mode |
16e82271 | 1008 | |
09e18d03 CY |
1009 | *** New macro `with-help-window' should set up help windows better |
1010 | than `with-output-to-temp-buffer' with `print-help-return-message'. | |
8f5cee6a | 1011 | |
09e18d03 CY |
1012 | *** New option `help-window-select' permits to customize whether help |
1013 | window shall be automatically selected when invoking help. | |
8f5cee6a | 1014 | |
540f3092 GM |
1015 | *** New variable `help-window-point-marker' permits one to specify a new |
1016 | position for point in help window (for example in `view-lossage'). | |
15947a44 | 1017 | |
09e18d03 | 1018 | ** Isearch |
16e82271 | 1019 | |
4f75e082 JL |
1020 | *** New command `isearch-forward-word' bound globally to `M-s w' starts |
1021 | incremental word search. New command `isearch-toggle-word' bound to the | |
1022 | same key `M-s w' in Isearch mode toggles word searching on or off | |
1023 | while Isearch is active. | |
1024 | ||
1025 | *** New command `isearch-highlight-regexp' bound to `M-s h r' in Isearch | |
1026 | mode runs `highlight-regexp' (`hi-lock-face-buffer') with the current | |
1027 | search string as its regexp argument. The same key `M-s h r' and | |
1028 | other keys on the `M-s h' prefix are bound globally to the command | |
1029 | `highlight-regexp' and other hi-lock commands. | |
16e82271 | 1030 | |
4f75e082 JL |
1031 | *** New command `isearch-occur' bound to `M-s o' in Isearch mode |
1032 | runs `occur' with the current search string. The same key `M-s o' | |
1033 | is bound globally to the command `occur'. | |
16e82271 | 1034 | |
4f75e082 JL |
1035 | *** Isearch can now search through multiple ChangeLog files. |
1036 | When running Isearch in a ChangeLog file, if the search fails, | |
09e18d03 | 1037 | then another C-s tries searching the previous ChangeLog, |
540f3092 | 1038 | if there is one (e.g. going from ChangeLog to ChangeLog.12). |
babc4609 | 1039 | This is enabled if multi-isearch-search is non-nil. |
93a142e1 | 1040 | |
babc4609 | 1041 | *** Two new commands to start Isearch on a list of marked buffers |
cc3236e1 JL |
1042 | for buff-menu.el and ibuffer.el are bound to the keys `M-s a C-s' and |
1043 | `M-s a M-C-s'. | |
16e82271 | 1044 | |
3c241617 CY |
1045 | *** The part of an Isearch that failed to match is highlighted in |
1046 | `isearch-fail' face. | |
5d503af9 | 1047 | |
4f75e082 JL |
1048 | *** `C-h C-h' in Isearch mode displays isearch-specific Help screen, |
1049 | `C-h b' displays all Isearch key bindings, `C-h k' displays the full | |
1050 | documentation of the given Isearch key sequence, `C-h m' displays | |
1051 | documentation of Isearch mode. All the rest Help commands exit Isearch mode | |
09e18d03 | 1052 | and execute their global definitions. |
16e82271 | 1053 | |
09e18d03 CY |
1054 | *** When started in the minibuffer, Isearch searches in the minibuffer |
1055 | history. See `Minibuffer changes', above. | |
2793c9bb | 1056 | |
66863844 | 1057 | ** MH-E |
1e9b0fb2 | 1058 | |
d1d87851 | 1059 | *** Upgraded to MH-E version 8.2. See MH-E-NEWS for details. |
66863844 | 1060 | |
09e18d03 CY |
1061 | ** Python |
1062 | *** The file etc/emacs.py now supports both Python 2 and 3, meaning | |
1063 | that either version can be used as inferior Python by python.el. | |
c5578d5f | 1064 | |
09e18d03 CY |
1065 | *** Python mode now has `pdbtrack' functionality. When using pdb to |
1066 | debug a Python program, pdbtrack notices the pdb prompt and displays | |
1067 | the source file and line that the program is stopped at, much the same | |
1068 | way as gud-mode does for debugging C programs with gdb. | |
2793c9bb | 1069 | |
1e9b0fb2 MA |
1070 | ** Recentf |
1071 | ||
1072 | *** The default value of `recentf-keep' prevents from checking of | |
1073 | remote files, if there is no established connection to the | |
1074 | corresponding remote host. | |
1075 | ||
2d51ab64 GM |
1076 | ** Rmail |
1077 | ||
b55b134f | 1078 | *** Rmail no longer converts the messages to Babyl format. |
33b43245 GM |
1079 | Instead, it uses UNIX mbox format, both on disk and in Rmail buffers, |
1080 | and does conversion and decoding when a message is displayed. | |
b55b134f | 1081 | |
33b43245 | 1082 | The first time you visit an Rmail file in Babyl format, Rmail |
b55b134f EZ |
1083 | automatically converts it to mbox format. This is a one-time |
1084 | conversion, but it can take a few minutes, depending on how fast is | |
1085 | your machine and on the size of the file. You should find the rest of | |
1086 | Rmail usage unaltered. | |
1087 | ||
80d634b8 RS |
1088 | However, M-x set-rmail-inbox-list now lasts only for one session |
1089 | because there is no way to save the list of inbox files in an | |
1090 | mbox-format file. | |
1091 | ||
329a643c GM |
1092 | Also, whereas with Babyl format M-x find-file would switch to Rmail |
1093 | mode, with mbox format this is no longer the case (there being no way | |
bcf3f1f5 GM |
1094 | to add an "-*- rmail-*-" cookie to an mbox file). Use C-u M-x rmail |
1095 | instead. | |
329a643c | 1096 | |
33b43245 GM |
1097 | If you have written any extensions to Rmail, they are likely to need |
1098 | updating. Conceptually, the Rmail buffer that you see is no longer | |
1099 | just a narrowed portion of the whole. So you cannot access the whole | |
1100 | of a message (or message collection) by a simple save-restriction and | |
1101 | widen. Instead, there are two buffers: the rmail-buffer, and the | |
2e538385 | 1102 | rmail-view-buffer. The former is the buffer that you see, the latter |
33b43245 GM |
1103 | is invisible. Most of the time, the invisible `view' buffer contains |
1104 | the full contents of the Rmail file, and the Rmail buffer contains a | |
1105 | decoded copy of the current message (with only a subset of the | |
2e538385 | 1106 | headers). In this state, Rmail is said to be `swapped'. |
2d51ab64 | 1107 | |
33b43245 GM |
1108 | You may find the following functions useful: |
1109 | ||
1110 | `rmail-get-header' and `rmail-set-header' get or set the value of a | |
1111 | message header, whether or not it is currently visible. | |
1112 | ||
1113 | `rmail-apply-in-message' is a general purpose function that calls a | |
1114 | function (with arguments) which you specify on the full text of a given | |
1115 | message. To further narrow to just the headers, search forward for "\n\n". | |
1116 | ||
33b43245 | 1117 | *** The new command `rmail-mime' displays MIME messages. |
2e538385 | 1118 | It is bound to `v' in Rmail buffers and summaries. It displays plain |
33b43245 GM |
1119 | text and multipart messages in a temporary buffer, and offers buttons |
1120 | to save attachments. | |
1121 | ||
763e01c4 EZ |
1122 | *** The command `rmail-redecode-body' no longer accepts the optional arg RAW. |
1123 | Since Rmail now holds messages in their original undecoded form in a | |
1124 | separate buffer, `rmail-redecode-body' no longer encodes the original | |
1125 | message, and therefore there should be no need to avoid encoding it. | |
1126 | ||
80d634b8 RS |
1127 | *** The o command is now `rmail-output'. It is an all-purpose command |
1128 | for copying messages from Rmail and appending them to files. It | |
1129 | handles Babyl-format files as well as mbox-format files, and it | |
1130 | handles both kinds properly when they are visited in Emacs. It always | |
1131 | copies the full headers of the message. | |
1132 | ||
80d634b8 RS |
1133 | *** The C-o command is now `rmail-output-as-seen'. It uses |
1134 | the message as displayed, appending it to an mbox file. | |
1135 | ||
2e538385 GM |
1136 | *** The modified status of the Rmail buffer is reported in the mode-line. |
1137 | Previously, this information was hidden. | |
1138 | ||
9721264a | 1139 | ** TeX modes |
16e82271 | 1140 | |
9721264a MR |
1141 | *** New option latex-indent-within-escaped-parens |
1142 | permits to customize indentation of LaTeX environments delimited | |
1143 | by escaped parens. | |
1144 | ||
09e18d03 | 1145 | ** T-mouse Mode |
16e82271 | 1146 | |
09e18d03 CY |
1147 | *** If the gpm mouse server is running and t-mouse-mode is enabled, |
1148 | Emacs uses a Unix socket in a GNU/Linux console to talk to server, | |
1149 | rather than faking events using the client program mev. This C level | |
1150 | approach provides mouse highlighting and help echoing in the | |
1151 | minibuffer. | |
2793c9bb | 1152 | |
cc213f24 MA |
1153 | ** Tramp |
1154 | ||
1155 | *** New connection methods. | |
1156 | The new methods "plinkx", "plink2", "psftp", "sftp" and "fish" have | |
1157 | been introduced. There are also new so-called gateway methods | |
1158 | "tunnel" and "socks". | |
1159 | ||
cc2fc5a2 MA |
1160 | *** IPv6 addresses. |
1161 | IPv6 addresses are supported now as host names. They must be embedded | |
1162 | in square brackets, like in "/ssh:[::1]:". | |
1163 | ||
cc213f24 | 1164 | *** Multihop syntax has been removed. |
540f3092 | 1165 | The pseudo-method "multi" has been removed. Instead, multi hops |
cc213f24 MA |
1166 | can be specified by the new variable `tramp-default-proxies-alist'. |
1167 | ||
1168 | *** More default settings. | |
1169 | Default values can be set via the variables `tramp-default-user', | |
1170 | `tramp-default-user-alist' and `tramp-default-host'. | |
1171 | ||
1172 | *** Connection information is cached. | |
1173 | In order to reduce connection setup, information about used | |
540f3092 | 1174 | connections is kept persistently in a file. The name of this file is |
cc213f24 MA |
1175 | defined in the variable `tramp-persistency-file-name'. |
1176 | ||
1177 | *** Control of remote processes. | |
1178 | Running processes on a remote host can be controlled by settings in | |
1179 | `tramp-remote-path' and `tramp-remote-process-environment'. | |
1180 | ||
1181 | *** Success of remote copy is checked. | |
1182 | When the variable `file-precious-flag' is set, the success of a remote | |
1183 | file copy is checked via the file's checksum. | |
1184 | ||
7cba69f2 MA |
1185 | *** Passwords can be read from an authentification file. |
1186 | Tramp uses the package `auth-source' to read passwords from a file, if | |
1187 | necessary. | |
1188 | ||
289aee1c | 1189 | ** VC and related modes |
16e82271 | 1190 | |
09e18d03 CY |
1191 | *** VC now supports applying VC operations to a set of files at a time. |
1192 | This enables VC to work much more effectively with changeset-oriented | |
1193 | version-control systems such as Subversion, GNU Arch, Mercurial, Git | |
1194 | and Bzr. VC will now pass a multiple-file commit to these systems as | |
1195 | a single changeset. | |
16e82271 | 1196 | |
09e18d03 | 1197 | *** vc-dir is a new command that displays file names and their VC |
289aee1c DN |
1198 | status. It allows to apply various VC operations to a file, a |
1199 | directory or a set of files/directories. | |
16e82271 | 1200 | |
614677a0 GM |
1201 | *** VC switches are no longer appended, rather the first non-nil value is used. |
1202 | (This was for the most part true in Emacs 22, but was not advertised). | |
1203 | This is because there is an increasing variety of VC systems, and they | |
1204 | do not all accept the same "common" options. For example, a CVS diff | |
1205 | command used to append the values of `vc-cvs-diff-switches', | |
1206 | `vc-diff-switches', and `diff-switches'. Now the first non-nil value | |
1207 | from that sequence is used. The special value `t' means "no switches". | |
16e82271 | 1208 | |
09e18d03 | 1209 | *** Clicking on the VC mode-line entry now pops the VC menu. |
16e82271 | 1210 | |
09e18d03 | 1211 | *** The VC mode-line entry now has a tooltip that explains the VC file status. |
2b69181c DN |
1212 | |
1213 | *** In VC Annotate mode, the key bindings have changed to use lower | |
1214 | case keys instead of the upper case keys used in the past. | |
16e82271 | 1215 | |
09e18d03 CY |
1216 | *** In VC Annotate mode, for VC systems that support changesets, you can |
1217 | see the diff for the whole changeset (not only for the current file) | |
ee0f0556 CY |
1218 | by typing the D key. Using the "Show changeset diff of revision at |
1219 | line" menu entry does the same thing. | |
16e82271 | 1220 | |
e86fa02b | 1221 | *** In VC Annotate mode, you can type v to toggle the annotation visibility. |
16e82271 | 1222 | |
09e18d03 CY |
1223 | *** In VC Annotate mode, you can type f to show the file revision on |
1224 | the current line. | |
16e82271 | 1225 | |
09e18d03 CY |
1226 | *** Asynchronous VC commands display [Waiting...] in the mode-line |
1227 | of the corresponding buffer as long as the asynchronous process is | |
1228 | active. | |
16e82271 | 1229 | |
09e18d03 CY |
1230 | *** Log entries can be modified using the key "e" in log-view. |
1231 | For now only CVS, RCS, SCCS and SVN support this functionality. | |
1232 | This is done by the `modify-change-comment' backend function. | |
16e82271 | 1233 | |
09e18d03 CY |
1234 | *** In log-view-mode, for VC systems that support changesets, you can |
1235 | see the diff for the whole changeset (not only for the current file) | |
1236 | by typing the D key or using the "Changeset Diff" menu entry. | |
16e82271 | 1237 | |
289aee1c DN |
1238 | *** In Log Edit mode, C-c C-d now shows the diff for the files involved. |
1239 | ||
1240 | *** vc-git supports the "git grep" command. | |
16e82271 | 1241 | |
540f3092 | 1242 | *** VC Support for Meta-CVS has been removed for lack of a maintainer able |
09e18d03 | 1243 | to update it to the new VC. |
cf944fa4 | 1244 | |
d15f7b68 GM |
1245 | ** Miscellaneous |
1246 | ||
1247 | *** comint-mode uses `start-file-process' now (see Lisp Changes). | |
cc213f24 MA |
1248 | If `default-directory' is a remote file name, subprocesses are started |
1249 | on the corresponding remote system. | |
16e82271 | 1250 | |
09e18d03 CY |
1251 | *** Eldoc highlights the function argument under point |
1252 | with the face `eldoc-highlight-function-argument'. | |
16e82271 | 1253 | |
09e18d03 | 1254 | *** In Etags, the --members option is now the default. |
fffa137c | 1255 | Use --no-members if you want the old default behavior of not tagging |
09e18d03 | 1256 | struct members in C, members variables in C++ and variables in PHP. |
16e82271 | 1257 | |
09e18d03 CY |
1258 | *** The `gdb' command only works with the graphical interface now. |
1259 | Use `gud-gdb' if you want the (old) text command mode. | |
1260 | ||
1261 | *** goto-address.el provides two new minor modes, goto-address-mode and | |
1262 | goto-address-prog-mode, which buttonize URLS and email addresses. | |
1263 | ||
1264 | *** The new command `eshell/info' runs info in an eshell buffer. | |
3cf86f00 | 1265 | |
4d1e89e3 GM |
1266 | *** The new variable `ffap-rfc-directories' specifies a list of local |
1267 | directories in which `ffap-rfc' will first search for RFCs. | |
16e82271 | 1268 | |
09e18d03 CY |
1269 | *** hide-ifdef-mode allows shadowing ifdef-blocks instead of hiding them. |
1270 | See option `hide-ifdef-shadow' and function `hide-ifdef-toggle-shadowing'. | |
1271 | ||
1272 | *** `icomplete-prospects-height' now supercedes `icomplete-prospects-length'. | |
1273 | ||
1274 | *** Info displays breadcrumbs in the header of the page. | |
1275 | See Info-breadcrumbs-depth to control it. | |
1276 | ||
d2c98acc | 1277 | *** net-utils has an `iwconfig' command, similar to the existing `ifconfig'. |
b7bfcc8a | 1278 | It is used to configure wireless interfaces. |
d2c98acc | 1279 | |
09e18d03 CY |
1280 | *** The pcmpl-unix package supports hostname completion for ssh and scp. |
1281 | ||
1282 | *** sgml-electric-tag-pair-mode lets you simultaneously edit matched tag pairs. | |
1283 | ||
1284 | *** smerge-refine highlights word-level details of changes in conflict. | |
7381be9d TTN |
1285 | It's used automatically as you move through conflicts, see |
1286 | smerge-auto-refine-mode. | |
09e18d03 CY |
1287 | |
1288 | *** talk.el has been extended for multiple tty support. | |
1289 | ||
1290 | *** A new command `display-time-world' has been added to the Time | |
1291 | package. It creates a buffer with an updating time display using | |
1292 | several time zones. | |
1293 | ||
1294 | *** The appearance of superscript and subscript in TeX is more customizable. | |
1295 | See the documentation of the variables: tex-fontify-script, | |
1296 | tex-font-script-display, tex-suscript-height-ratio, and | |
1297 | tex-suscript-height-minimum. | |
1298 | ||
1299 | *** view-remove-frame-by-deleting is now by default t | |
1300 | since users found iconification of view-mode frames distracting. | |
16e82271 | 1301 | |
09e18d03 CY |
1302 | *** WoMan tries to add locale-specific manual page directories to the |
1303 | search path. This can be disabled by setting `woman-locale' to nil. | |
1304 | ||
0bfd685e GM |
1305 | \f |
1306 | * Changes in Emacs 23.1 on non-free operating systems | |
8ab314f9 | 1307 | |
203553fd JPW |
1308 | ** Case is now considered significant in completion on MS-Windows. |
1309 | The default value of `completion-ignore-case' is now nil on | |
1310 | MS-Windows, the same as it is for other operating systems. The | |
1311 | variable doesn't apply to reading a file name -- in that case Emacs | |
1312 | heeds `read-file-name-completion-ignore-case' instead. | |
1313 | ||
672f99b6 JR |
1314 | ** IPv6 is supported on MS-Windows. |
1315 | Emacs now supports IPv6 on Windows XP and later, and earlier versions | |
2660a9da | 1316 | of Windows with third party IPv6 stacks installed. In Emacs 22, IPv6 was |
672f99b6 JR |
1317 | supported on other platforms, but not on Windows due to using the winsock |
1318 | 1.1 header file, even though Emacs was linking to the winsock 2 library. | |
1319 | ||
6e344060 JR |
1320 | ** Busy cursor (hourglass) now displays on MS-Windows. |
1321 | When Emacs is busy, an hourglass mouse cursor is displayed on Windows. | |
2660a9da JR |
1322 | In Emacs 22 only X supported the busy cursor. |
1323 | ||
2660a9da JR |
1324 | ** Battery status is available on MS-Windows |
1325 | Emacs can now display the battery status in the mode-line when enabled with | |
1326 | display-battery-mode or from the Options menu. More verbose battery | |
1327 | information is also available with the command `battery'. In Emacs 22 | |
1328 | battery status was supported only on GNU/Linux and Mac. | |
6e344060 | 1329 | |
3280c5c5 JR |
1330 | ** More keys available on MS-Windows. |
1331 | Keys normally associated with IMEs, and some exotic keys not normally found | |
1332 | on standard keyboards have been given names so they can be bound to functions | |
1333 | inside Emacs. If there are keys on your keyboard that have not been exposed | |
1334 | to Emacs in the past, try C-h k to see if they are available now. | |
1335 | ||
1336 | Emacs can now bind functions to the extra buttons for media player and | |
1337 | browser control present on some keyboards. These buttons are disabled | |
1338 | by default, since enabling them prevents their system-wide use when | |
1339 | Emacs has focus. To enable them, set the variable | |
0caa490b | 1340 | w32-pass-multimedia-buttons to nil. See the doc string of that variable |
3280c5c5 | 1341 | for the list of extra keys that are available. |
2660a9da | 1342 | |
4a263588 | 1343 | ** BDF fonts no longer supported on MS-Windows. |
2e538385 | 1344 | The font backend was completely rewritten for this release. The focus |
4a263588 JR |
1345 | on Windows has been getting acceptable performance and full unicode |
1346 | support, including complex script shaping for native Windows fonts. A | |
1347 | rewrite of the BDF font support has not happened due to lack of time | |
1348 | and developers. If demand still exists for such a backend even with | |
1349 | the improved language support for native Windows fonts, future | |
1350 | development in this direction will most likely be based on the | |
1351 | freetype library, giving access to a wider range of font formats. | |
1352 | ||
0bfd685e GM |
1353 | \f |
1354 | * Incompatible Lisp Changes in Emacs 23.1 | |
8ec65cd7 | 1355 | |
fd9440c5 | 1356 | ** Variables cannot be both buffer-local and frame-local any more. |
a9b08254 | 1357 | |
fc944cd4 | 1358 | ** `functionp' returns nil for special forms. |
65f81a0b | 1359 | I.e., it only returns t for objects that can be passed to `funcall'. |
fc944cd4 | 1360 | |
d82c3d44 GM |
1361 | ** The behavior of map-char-table has changed. It may call the |
1362 | specified function with a cons (FROM . TO) as a key if characters in | |
1363 | that range have the same value. | |
1364 | ||
b350bdf2 | 1365 | ** Process changes |
16e82271 | 1366 | |
b350bdf2 | 1367 | *** The function `dired-call-process' has been removed. |
16e82271 | 1368 | |
b350bdf2 CY |
1369 | *** The multibyteness of process filters is now determined by the |
1370 | coding-system used for decoding. The functions | |
1371 | `process-filter-multibyte-p' and `set-process-filter-multibyte' are | |
1372 | obsolete. | |
03605a28 | 1373 | |
777ea444 | 1374 | ** The variable `byte-compile-warnings' can now be a list starting with `not', |
0caa490b | 1375 | meaning to disable the specified warnings. The meaning of this list |
777ea444 | 1376 | may therefore be the reverse of what you expect (of course, this is |
0caa490b | 1377 | only an issue if you make use of the new `not' syntax). Rather than |
777ea444 GM |
1378 | checking/manipulating elements directly, use the new functions |
1379 | `byte-compile-warning-enabled-p', `byte-compile-disable-warning', and | |
1380 | `byte-compile-enable-warning.' | |
1381 | ||
69df9d6d GM |
1382 | ** `mode-name' is no longer guaranteed to be a string. |
1383 | Use `(format-mode-line mode-name)' to ensure a string value. | |
1384 | ||
53ed745a CY |
1385 | ** The function x-font-family-list has been removed. |
1386 | Use the new function font-family-list (see Lisp Changes, below). | |
1387 | ||
b350bdf2 CY |
1388 | ** Internationalization changes |
1389 | ||
1390 | *** The value of the function `charset-id' is now always 0. | |
16e82271 | 1391 | |
b350bdf2 CY |
1392 | *** The functions `register-char-codings' and `coding-system-spec' |
1393 | have been removed. | |
16e82271 | 1394 | |
b350bdf2 CY |
1395 | *** The cpXXX coding systems are now supported automatically. |
1396 | The functions cp-...-codepage, which you had to use in Emacs 22 to | |
1397 | enable support for these coding systems, have been deleted. | |
16e82271 | 1398 | |
b350bdf2 | 1399 | *** The following features have been removed. They were used for |
85a1f98d GM |
1400 | displaying various scripts with specific fonts, and are no longer |
1401 | needed now that OpenType font support is available: | |
1402 | ||
b350bdf2 | 1403 | **** `devanagari' and `devan-util', and all associated devanagari-* and |
85a1f98d GM |
1404 | dev-* functions and variables (formerly used for Devanagari script). |
1405 | ||
b350bdf2 | 1406 | **** `kannada' and `knd-util', and all associated kannada-* and knd-* |
85a1f98d GM |
1407 | functions and variables (formerly used for Kannada script). |
1408 | ||
b350bdf2 | 1409 | **** `malayalam' and `mlm-util', and all associated malayalam-* and |
85a1f98d GM |
1410 | mlm-* functions and variables (formerly used for Malayalam script). |
1411 | ||
b350bdf2 | 1412 | **** `tamil' and `tml-util, and all associated tamil-* and tml-* |
85a1f98d | 1413 | functions and variables (formerly used for Tamil script). |
6a6b4d7d | 1414 | |
2d2db320 KH |
1415 | *** The meaning of NAME argument of `set-fontset-font' is changed. |
1416 | Previously nil is accepted as the default fontset. Now, nil is for | |
1417 | the fontset of the selected frame and t is for the default fontset. | |
1418 | ||
1419 | *** The meaning of FONTSET argument of `print-fontset' is changed. | |
1420 | Now, nil is for the fontset of the selected frame and t is for the | |
1421 | default fontset. | |
1422 | ||
16e82271 CY |
1423 | ** If a function in write-region-annotate-functions returns with a |
1424 | different buffer current, Emacs no longer kills that buffer | |
1425 | automatically. This behavior existed in previous versions of Emacs, | |
1426 | but was undocumented. To kill a buffer after write-region, give the | |
1427 | variable `write-region-post-annotation-function' a buffer-local value | |
1428 | of `kill-buffer'. | |
1429 | ||
55504ada | 1430 | ** The variable temp-file-name-pattern has been removed. |
f4150f61 CY |
1431 | This variable was only used by call-process-region, which now uses |
1432 | temporary-file-directory instead. | |
1433 | ||
52456e59 CY |
1434 | ** The COUNT and SYSTEM-FLAG arguments to define-abbrev have been |
1435 | removed. The function now takes extra arguments for specifying | |
1436 | arbitrary abbrev properties. | |
1437 | ||
7841339b AM |
1438 | ** end-of-defun-function is now guaranteed to work only when called |
1439 | from the start of a defun. It must now leave point exactly at the end | |
1440 | of defun, since `end-of-defun' now itself moves forward over | |
1441 | whitespace after calling it. | |
1442 | ||
0bfd685e GM |
1443 | \f |
1444 | * Lisp Changes in Emacs 23.1 | |
8ab314f9 | 1445 | |
b8afe7e4 EZ |
1446 | ** The new variable `generate-autoload-cookie' controls the magic comment |
1447 | string used by `update-file-autoloads' to find autoloaded forms. The | |
1448 | variable `generated-autoload-file' similarly controls the name of the | |
1449 | file where `update-file-autoloads' writes the calls to `autoload'. | |
1450 | The default values are ";;;###autoload" and `loaddefs.el', | |
1451 | respectively. | |
1452 | ||
a20878b6 | 1453 | ** New primitives `list-system-processes' and `process-attributes' |
5d692341 EZ |
1454 | let Lisp programs access the processes that are running on the local |
1455 | machine. See the doc strings of these functions for more details. | |
1456 | Not all platforms support accessing this information; on those that | |
1457 | don't, these primitives will return nil. | |
1458 | ||
b350bdf2 CY |
1459 | ** New variable `user-emacs-directory'. |
1460 | Use this instead of "~/.emacs.d". | |
43f8b275 | 1461 | |
b350bdf2 CY |
1462 | ** If a local hook function has a non-nil `permanent-local-hook' |
1463 | property, `kill-all-local-variables' does not remove it from the local | |
1464 | value of the hook variable; it remains even if you change major modes. | |
09e18d03 | 1465 | |
b350bdf2 CY |
1466 | ** `frame-inherited-parameters' lets new frames inherit parameters from |
1467 | the selected frame. | |
09e18d03 | 1468 | |
b350bdf2 CY |
1469 | ** New keymap `input-decode-map' overrides like key-translation-map, but |
1470 | applies before function-key-map. Also it is terminal-local contrary to | |
1471 | key-translation-map. Terminal-specific key-sequences are generally added to | |
1472 | this map rather than to function-key-map now. | |
09e18d03 | 1473 | |
b350bdf2 | 1474 | ** `ignore-errors' is now a standard macro (does not require the CL package). |
09e18d03 | 1475 | |
b350bdf2 CY |
1476 | ** `interprogram-paste-function' can now return one string or a list |
1477 | of strings. In the latter case, Emacs puts the second and following | |
1478 | strings on the kill ring. | |
09e18d03 | 1479 | |
b350bdf2 CY |
1480 | ** In `condition-case', a handler can specify "let the debugger run first". |
1481 | You do this by writing `debug' in the list of conditions to be handled, | |
1482 | like this: | |
09e18d03 | 1483 | |
b350bdf2 CY |
1484 | (condition-case nil |
1485 | (foo bar) | |
1486 | ((debug error) nil)) | |
09e18d03 | 1487 | |
b350bdf2 | 1488 | ** clone-indirect-buffer now runs the clone-indirect-buffer-hook. |
09e18d03 | 1489 | |
7841339b AM |
1490 | ** `beginning-of-defun-function' now takes one argument, the count given to |
1491 | `beginning-of-defun'. (N.B. `end-of-defun-function' doesn't take any | |
1492 | arguments.) | |
09e18d03 | 1493 | |
b350bdf2 CY |
1494 | ** `file-remote-p' has new optional parameters IDENTIFICATION and CONNECTED. |
1495 | IDENTIFICATION specifies which part of the remote identifier has to be | |
1496 | returned. With CONNECTED passed non-nil, it is checked whether a | |
1497 | remote connection has been established already. | |
09e18d03 | 1498 | |
b350bdf2 CY |
1499 | ** The new macro `declare-function' suppresses compiler warnings about |
1500 | undefined functions. | |
a1562258 | 1501 | |
b350bdf2 | 1502 | ** Changes to interactive function handling |
8ba31f36 | 1503 | |
b350bdf2 CY |
1504 | *** The new interactive spec code ^ says to first call |
1505 | handle-shift-selection if shift-select-mode is non-nil, before reading | |
1506 | the command arguments. This is used for shift-selection (see above). | |
e2947429 | 1507 | |
b350bdf2 CY |
1508 | *** Built-in functions can now have an interactive specification that |
1509 | is not a prompt string. If the `intspec' parameter of a `DEFUN' | |
1510 | starts with a `(', the string is evaluated as a Lisp form. | |
e2947429 | 1511 | |
b350bdf2 CY |
1512 | *** The interactive-form of a function can be added post-facto via the |
1513 | `interactive-form' symbol property. Mostly useful to add complex | |
1514 | interactive forms to subroutines. | |
d87be1df | 1515 | |
b350bdf2 | 1516 | ** Region changes |
3ae459e5 | 1517 | |
b350bdf2 CY |
1518 | *** Commands should use `use-region-p' to test whether there is |
1519 | an active region that they should operate on. | |
3ae459e5 | 1520 | |
b350bdf2 | 1521 | *** `region-active-p' returns non-nil when Transient Mark mode is |
71b605b8 CY |
1522 | enabled and the mark is active. Most commands that act specially on |
1523 | the active region in Transient Mark mode should use `use-region-p' | |
1524 | instead of `region-active-p', because `use-region-p' obeys the new | |
1525 | user option `use-empty-active-region' (see Editing Changes, above). | |
58555d81 | 1526 | |
b350bdf2 CY |
1527 | *** If a command sets `transient-mark-mode' to (only . OLDVAL), that |
1528 | means to activate transient-mark-mode temporarily, until the next | |
1529 | unshifted point motion command or mark deactivation. Afterwards, | |
1530 | reset transient-mark-mode to the value OLDVAL. The values `only' and | |
1531 | `identity', introduced in Emacs 22, are now deprecated. | |
e5c4079c | 1532 | |
b350bdf2 | 1533 | ** Emacs session information |
13cda5f9 | 1534 | |
b350bdf2 CY |
1535 | *** The new variables `before-init-time' and `after-init-time' record the |
1536 | value of `current-time' before and after Emacs loads the init files. | |
a2bc5bdd | 1537 | |
b350bdf2 | 1538 | *** The new function `emacs-uptime' returns the uptime of an Emacs instance. |
d82c3d44 | 1539 | |
b350bdf2 CY |
1540 | *** The new function `emacs-init-time' returns the duration of the |
1541 | Emacs initialization. | |
50bfa18a | 1542 | |
b350bdf2 | 1543 | ** Changes affecting display-buffer |
16e82271 | 1544 | |
abe8f306 MR |
1545 | *** display-buffer tries to be smarter when splitting windows. |
1546 | The new option split-window-preferred-function lets you specify your own | |
1547 | function to pop up new windows. Its default value split-window-sensibly | |
1548 | can split a window either vertically or horizontally, whichever seems | |
1549 | more suitable in the current configuration. You can tune the behavior | |
1550 | of split-window-sensibly by customizing split-height-threshold and the | |
1551 | new option split-width-threshold. Both options now take the value nil | |
1552 | to inhibit splitting in one direction. Setting split-width-threshold to | |
1553 | nil inhibits horizontal splitting and gets you the behavior of Emacs 22 | |
1554 | in this respect. In any case, display-buffer may now split the largest | |
1555 | window vertically even when it is not as wide as the containing frame. | |
2d105adf | 1556 | |
f691c216 CY |
1557 | *** If pop-up-frames has the value `graphic-only', display-buffer only |
1558 | makes a separate frame on graphic displays. | |
1559 | ||
abe8f306 | 1560 | *** select-frame and set-frame-selected-window have a new optional |
ee434cb1 MR |
1561 | argument NORECORD. If non-nil, this will avoid messing with the order |
1562 | of recently selected windows and the buffer list. | |
205f3a3b | 1563 | |
781459a4 CY |
1564 | ** Window parameters can now be defined. |
1565 | These are analogous to frame parameters, but are associated with | |
1566 | individual windows. | |
16e82271 | 1567 | |
781459a4 CY |
1568 | *** The new functions window-parameters, window-parameter, and |
1569 | set-window-parameter are used to query and set window parameters. | |
1570 | ||
b350bdf2 | 1571 | ** Minibuffer and completion changes |
16e82271 | 1572 | |
b350bdf2 | 1573 | *** A list of default values can be specified for the DEFAULT argument of |
b9694062 JL |
1574 | functions `read-from-minibuffer', `read-string', `read-command', |
1575 | `read-variable', `read-buffer', `completing-read'. Elements of this list | |
1576 | are available for inserting into the minibuffer by typing `M-n'. | |
1577 | For empty input these functions return the first element of this list. | |
1578 | ||
90993beb | 1579 | *** New function `read-regexp' uses the regexp history and some useful |
4f75e082 | 1580 | regexp defaults (string at point, last Isearch/replacement regexp/string) |
90993beb JL |
1581 | via M-n when reading a regexp in the minibuffer. |
1582 | ||
b350bdf2 CY |
1583 | *** minibuffer-local-must-match-filename-map is now named |
1584 | minibuffer-local-filename-must-match-map. | |
66dc1ca2 | 1585 | |
206faa92 CY |
1586 | *** The `require-match' argument to `completing-read' accepts the new |
1587 | values `confirm-only' and `confirm-after-completion'. | |
d03b9b31 | 1588 | |
b350bdf2 | 1589 | ** Search and replacement changes |
16e82271 | 1590 | |
b350bdf2 | 1591 | *** The regexp form \(?<num>:<regexp>\) specifies the group number explicitly. |
16e82271 | 1592 | |
b350bdf2 CY |
1593 | *** New function `match-substitute-replacement' returns the result of |
1594 | `replace-match' without actually using it in the buffer. | |
c60d543d | 1595 | |
b350bdf2 | 1596 | *** The new variable `replace-search-function' determines the function |
80120f13 EZ |
1597 | to use for searching in query-replace and replace-string. The |
1598 | function it specifies is called by `perform-replace' when its 4th | |
1599 | argument is nil. | |
3ae459e5 | 1600 | |
b350bdf2 CY |
1601 | *** The new variable `replace-re-search-function' determines the |
1602 | function to use for searching in `query-replace-regexp', | |
1603 | `replace-regexp', `query-replace-regexp-eval', and | |
80120f13 EZ |
1604 | `map-query-replace-regexp'. The function it specifies is called by |
1605 | `perform-replace' when its 4th argument is non-nil. | |
4f4a84ec | 1606 | |
4f75e082 JL |
1607 | *** New keymap `search-map' bound to `M-s' provides global bindings |
1608 | for search related commands. | |
1609 | ||
1610 | *** New keymap `multi-query-replace-map' contains additonal keys bound | |
71554a21 JL |
1611 | to `automatic-all' and `exit-current' for multi-buffer interactive replacement. |
1612 | ||
b350bdf2 CY |
1613 | *** The variable `inhibit-changing-match-data', if non-nil, prevents |
1614 | the search and match primitives from changing the match data. | |
967b2682 | 1615 | |
3c241617 CY |
1616 | *** New functions `word-search-forward-lax' and `word-search-backward-lax'. |
1617 | These are like `word-search-forward and `word-search-backward', except | |
1618 | that the end of the search string need not match a word boundary, | |
1619 | unless it ends in whitespace. | |
1620 | ||
b350bdf2 | 1621 | ** File handling changes |
8bf5c8a6 | 1622 | |
b350bdf2 CY |
1623 | *** set-file-modes is now interactive and can take the mode value in |
1624 | symbolic notation thanks to auxiliary functions. | |
16e82271 | 1625 | |
291703b5 EZ |
1626 | *** file-local-variables-alist stores an alist of file-local |
1627 | variables defined in the current buffer. | |
1628 | ||
d59f7c45 | 1629 | ** Face-remapping |
16e82271 | 1630 | |
d59f7c45 CY |
1631 | *** Each face can be remapped to a different face definition using the |
1632 | variable `face-remapping-alist'. This is an alist that maps faces to | |
1633 | replacement definitions (which can be face names, lists of face names, | |
1634 | or attribute/value plists. If this variable is buffer-local, the | |
1635 | remapping occurs only in that buffer. | |
1636 | ||
1637 | *** text-scale-mode remaps the default face to a larger or smaller | |
2e538385 | 1638 | size in the current buffer. This feature is used by the Buffer Face |
d59f7c45 CY |
1639 | menu and the new `C-x C-+', `C-x C--', and `C-x C-0' commands (see |
1640 | Editing Changes, above). | |
1641 | ||
1642 | *** New functions: | |
16e82271 | 1643 | |
d59f7c45 CY |
1644 | **** `face-remap-add-relative' adds a face remapping entry to the |
1645 | current buffer. | |
16e82271 | 1646 | |
d59f7c45 CY |
1647 | **** ``face-remap-remove-relative' removes a face remapping entry from |
1648 | the current buffer. | |
16e82271 | 1649 | |
d59f7c45 | 1650 | **** `face-remap-reset-base' restores a face to its global definition. |
16e82271 | 1651 | |
d59f7c45 CY |
1652 | **** `face-remap-set-base' sets the base remapping of a face. |
1653 | ||
85c78c0f | 1654 | ** Process changes |
16e82271 | 1655 | |
b350bdf2 CY |
1656 | *** The new function `start-file-process' is similar to `start-process', |
1657 | but obeys file handlers. The file handler is chosen based on | |
1658 | `default-directory'. The functions `start-file-process-shell-command' | |
1659 | and `process-file-shell-command' are also new; they call internally | |
1660 | `start-file-process' and `process-file', respectively. | |
1661 | ||
1662 | *** The new function `process-lines' executes an external program and | |
1663 | returns its output as a list of lines. | |
63571b5a | 1664 | |
d82c3d44 GM |
1665 | ** Character code, representation, and charset changes. |
1666 | ||
16e82271 CY |
1667 | *** In multibyte buffers and strings, characters are represented by |
1668 | UTF-8 byte sequences. The character code space is now 0x0..0x3FFFFF | |
1669 | with no gap; code points 0x0..0x10FFFF are Unicode characters of the | |
1670 | same code points, while code points 0x3FFF80..0x3FFFFF are raw 8-bit | |
1671 | bytes. | |
d82c3d44 | 1672 | |
16e82271 | 1673 | *** Generic characters no longer exist. |
d82c3d44 | 1674 | |
16e82271 CY |
1675 | *** The concept of a charset has changed. A single character may |
1676 | belong to multiple charsets (e.g. a-grave, U+00E0, belongs to charsets | |
b350bdf2 | 1677 | unicode, iso-8859-1, iso-8859-3, etc). |
d82c3d44 | 1678 | |
16e82271 CY |
1679 | **** The dimension of a charset is now 1, 2, 3, or 4, and the size of |
1680 | each dimension is no longer limited to 94 or 96. | |
1681 | ||
1682 | **** A dynamic charset priority list is used to infer the charset of | |
1683 | characters for display. | |
1684 | ||
c9a1876d EZ |
1685 | *** The functions `split-char' and `make-char' now accept up to 4 |
1686 | positional codes instead of just 2. | |
1687 | ||
d82c3d44 GM |
1688 | *** The functions `encode-char' and `decode-char' now accept any character sets. |
1689 | ||
1690 | *** The function `define-charset' now accepts a completely different | |
1691 | form of arguments (old-style arguments still work). | |
1692 | ||
d82c3d44 GM |
1693 | *** The value of the function `char-charset' depends on the current |
1694 | priorities of charsets. | |
1695 | ||
d82c3d44 GM |
1696 | *** The function get-char-code-property now accepts many Unicode base |
1697 | character properties. They are `name', `general-category', | |
1698 | `canonical-combining-class', `bidi-class', `decomposition', | |
1699 | `decimal-digit-value', `digit-value', `numeric-value', `mirrored', | |
1700 | `old-name', `iso-10646-comment', `uppercase', `lowercase', and | |
1701 | `titlecase'. | |
1702 | ||
b350bdf2 CY |
1703 | *** The functions `modify-syntax-entry' and `modify-category-entry' now |
1704 | accept a cons of characters as the first argument, and modify all | |
1705 | entries in that range of characters. | |
d82c3d44 | 1706 | |
8434d0b8 EZ |
1707 | *** Use of `translation-table-for-input' for character code unification |
1708 | is now obsolete, since Emacs 23.1 and later uses Unicode as basis for | |
1709 | internal representation of characters. | |
d82c3d44 | 1710 | |
b350bdf2 | 1711 | *** New functions: |
d82c3d44 | 1712 | |
b350bdf2 CY |
1713 | **** `characterp' returns t if and only if the argument is a character. |
1714 | This replaces `char-valid-p', which is now obsolete. | |
d82c3d44 | 1715 | |
b350bdf2 | 1716 | **** `max-char' returns the maximum character code (currently #x3FFFFF). |
d82c3d44 | 1717 | |
b350bdf2 CY |
1718 | **** `define-charset-alias' defines an alias of a charset. |
1719 | ||
1720 | **** `set-charset-priority' sets priorities of charsets. | |
1721 | ||
1722 | **** `charset-priority-list' returns a prioritized list of charsets. | |
1723 | ||
1724 | **** `unibyte-string' makes a unibyte string from bytes. | |
1725 | ||
1726 | **** `define-char-code-property' defines a character code property. | |
1727 | ||
1728 | **** `char-code-property-description' returns the description string of | |
1729 | a character code property. | |
1730 | ||
1731 | *** New variables: | |
1732 | ||
1733 | **** `find-word-boundary-function-table' is a char-table of functions to | |
1734 | search for a word boundary. | |
1735 | ||
1736 | **** `char-script-table' is a char-table of script names. | |
1737 | ||
1738 | **** `char-width-table' is a char-table of character widths. | |
1739 | ||
1740 | **** `print-charset-text-property' controls how to handle `charset' text | |
1741 | property on printing a string. | |
1742 | ||
1743 | **** `printable-chars' is a char-table of printable characters. | |
d82c3d44 | 1744 | |
505d8756 | 1745 | ** Code conversion changes |
d82c3d44 GM |
1746 | |
1747 | *** The new function `define-coding-system' should be used to define a | |
1748 | coding system instead of `make-coding-system' (which is now obsolete). | |
1749 | ||
1750 | *** The functions `encode-coding-region' and `decode-coding-region' | |
1751 | have an optional 4th argument to specify where the result of | |
1752 | conversion should go. | |
1753 | ||
1754 | *** The functions `encode-coding-string' and `decode-coding-string' | |
1755 | have an optional 4th argument specifying a buffer to store the result | |
1756 | of conversion. | |
1757 | ||
b0caa7fb EZ |
1758 | *** The new variable `inhibit-null-byte-detection' controls whether to |
1759 | consider text with null bytes as binary data. By default, it is | |
1760 | `nil', and Emacs uses `no-conversion' for any text containing null | |
1761 | bytes. | |
1762 | ||
b350bdf2 | 1763 | *** The functions `set-coding-priority' and `make-coding-system' are obsolete. |
d82c3d44 | 1764 | |
b350bdf2 | 1765 | *** New functions: |
d82c3d44 | 1766 | |
b350bdf2 CY |
1767 | **** `with-coding-priority' executes Lisp code using the specified |
1768 | coding system priority order. | |
d82c3d44 | 1769 | |
b350bdf2 CY |
1770 | **** `check-coding-systems-region' checks if the text in the region is |
1771 | encodable by the specified coding systems. | |
d82c3d44 | 1772 | |
b350bdf2 | 1773 | **** `coding-system-aliases' returns a list of aliases of a coding system. |
d82c3d44 | 1774 | |
b350bdf2 CY |
1775 | **** `coding-system-charset-list' returns a list of charsets supported |
1776 | by a coding system. | |
d82c3d44 | 1777 | |
b350bdf2 CY |
1778 | **** `coding-system-priority-list' returns a list of coding systems |
1779 | ordered by their priorities. | |
1780 | ||
1781 | **** `set-coding-system-priority' sets priorities of coding systems. | |
d82c3d44 | 1782 | |
f4017dc5 KH |
1783 | **** `coding-system-from-name' returns a coding system matching with |
1784 | the argument name. | |
1785 | ||
1786 | ||
d82c3d44 | 1787 | ** There is a new input method, Robin, different from Quail. |
0caa490b | 1788 | It has three functionalities: |
d82c3d44 GM |
1789 | i) a simple input method (converts an ASCII sequence into a string). |
1790 | ii) converts an existing buffer substring into another string | |
1791 | iii) reverse conversion (each character produced by a | |
1792 | robin rule can hold the original ASCII sequence as a char-code-property) | |
1793 | ||
1794 | *** The new function `robin-define-package' defines a Robin package. | |
1795 | ||
1796 | *** The new function `robin-modify-package' modifies an existing Robin package. | |
1797 | ||
1798 | *** The new function `robin-use-package' starts using a Robin package | |
1799 | as an input method. | |
1800 | ||
888d7d86 KH |
1801 | *** The new function `string-to-unibyte' is like `string-as-unibyte' |
1802 | but signals an error if STRING contains a non-ASCII, non-eight-bit | |
1803 | character. | |
1804 | ||
505d8756 | 1805 | ** Changes related to the new font backend |
16e82271 | 1806 | |
0c1e3f0d CY |
1807 | *** Which font backends to use can be specified by the X resource |
1808 | "FontBackend". For instance, to use both X core fonts and Xft fonts: | |
2b7a2553 | 1809 | |
b19aa6dd | 1810 | Emacs.FontBackend: x,xft |
2b7a2553 | 1811 | |
b19aa6dd GM |
1812 | If this resource is not set, Emacs tries to use all font backends |
1813 | available on your graphic device. | |
16e82271 | 1814 | |
d82c3d44 GM |
1815 | *** New frame parameter `font-backend' specifies a list of |
1816 | font-backends supported by the frame's graphic device. On X, they are | |
1817 | currently `x' and `xft'. | |
1818 | ||
b350bdf2 CY |
1819 | *** The function `set-fontset-font' now accepts a script name as the |
1820 | second argument, and has an optional 5th argument to control how to | |
1821 | set the font. | |
bd9d28f7 | 1822 | |
b350bdf2 | 1823 | *** New functions: |
16e82271 | 1824 | |
b350bdf2 | 1825 | **** `fontp' checks if the argument is a font-spec or font-entity. |
16e82271 | 1826 | |
b350bdf2 | 1827 | **** `font-spec' creates a new font-spec object. |
16e82271 | 1828 | |
b350bdf2 | 1829 | **** `font-get' returns a font property value. |
16e82271 | 1830 | |
b350bdf2 | 1831 | **** `font-put' sets a font property value. |
16e82271 | 1832 | |
b350bdf2 | 1833 | **** `font-face-attributes' returns a plist of face attributes set by a font. |
16e82271 | 1834 | |
b350bdf2 | 1835 | **** `list-fonts' returns a list of font-entities matching a font spec. |
16e82271 | 1836 | |
543e6d09 | 1837 | **** `find-font' returns the font-entity best matching the given font spec. |
16e82271 | 1838 | |
ae525471 | 1839 | **** `font-family-list' returns a list of family names of available fonts. |
16e82271 | 1840 | |
b350bdf2 CY |
1841 | **** `font-xlfd-name' returns an XLFD name of a given font spec, font |
1842 | entity, or font object. | |
16e82271 | 1843 | |
b350bdf2 | 1844 | **** `clear-font-cache' clears all font caches. |
d82c3d44 | 1845 | |
b350bdf2 | 1846 | ** Changes related to multiple-terminal (multi-tty) support |
24cdde13 | 1847 | |
b12f6e85 SM |
1848 | *** $TERM is now set to `dumb' for subprocesses. If you want to know the |
1849 | $TERM inherited by Emacs you will have to look inside initial-environment. | |
1850 | ||
6168122d SM |
1851 | *** $DISPLAY is now dynamically inherited from the frame's `display'. |
1852 | ||
b350bdf2 | 1853 | *** The `window-system' variable is now frame-local. The new |
24cdde13 | 1854 | `initial-window-system' variable contains the `window-system' value |
bbe3eb99 GM |
1855 | for the first frame. `window-system' is also now a function that |
1856 | takes a frame argument. | |
24cdde13 | 1857 | |
b350bdf2 CY |
1858 | *** The `keyboard-translate-table' variable and the terminal and |
1859 | keyboard coding systems are now terminal-local. | |
1860 | ||
24cdde13 GM |
1861 | *** You can specify a terminal device (`tty' parameter) and a terminal |
1862 | type (`tty-type' parameter) to `make-terminal-frame'. | |
1863 | ||
24cdde13 | 1864 | *** The function `make-frame-on-display' now works during a tty |
4e598d29 | 1865 | session. |
24cdde13 | 1866 | |
1e637a9f EZ |
1867 | *** A new `terminal' data type. |
1868 | The functions `get-device-terminal', `terminal-parameters', | |
765980a4 | 1869 | `terminal-parameter', `set-terminal-parameter' use this data type. |
24cdde13 | 1870 | |
b350bdf2 CY |
1871 | *** Function key sequences are now mapped using `local-function-key-map', |
1872 | a new variable. This inherits from the global variable function-key-map, | |
1873 | which is not used directly any more. | |
92cd6a7c | 1874 | |
b350bdf2 | 1875 | *** New hooks: |
da406961 | 1876 | |
7082ceb2 CY |
1877 | **** before-hack-local-variables-hook is called after setting new |
1878 | variable file-local-variables-alist, and before actually applying the | |
1879 | file-local variables. | |
1880 | ||
b350bdf2 CY |
1881 | **** `suspend-tty-functions' and `resume-tty-functions' are called |
1882 | after a tty frame has been suspended or resumed, respectively. The | |
1883 | functions are called with the terminal id of the frame being | |
1884 | suspended/resumed as a parameter. | |
da406961 | 1885 | |
b350bdf2 CY |
1886 | **** The special hook `delete-terminal-functions' is called before |
1887 | deleting a terminal. | |
82866ad5 | 1888 | |
b350bdf2 | 1889 | *** New functions: |
24cdde13 | 1890 | |
490f1197 | 1891 | **** `delete-terminal' |
9f44d41a | 1892 | |
b350bdf2 | 1893 | **** `suspend-tty' |
ea2e3ef4 | 1894 | |
b350bdf2 | 1895 | **** `resume-tty'. |
8d371994 | 1896 | |
b350bdf2 | 1897 | *** `initial-environment' holds the environment inherited from Emacs's parent. |
8d371994 | 1898 | |
b350bdf2 | 1899 | ** Redisplay changes |
16e82271 | 1900 | |
b350bdf2 CY |
1901 | *** For underlined characters, the distance between the underline and |
1902 | the baseline is controlled by a new variable, `underline-minimum-offset'. | |
16e82271 | 1903 | |
b350bdf2 CY |
1904 | *** You can now pass the value of the `invisible' property to |
1905 | invisible-p to check whether it would cause the text to be invisible. | |
540f3092 GM |
1906 | This is convenient when checking invisibility of text with no buffer |
1907 | position (e.g. in before/after-strings). | |
16e82271 | 1908 | |
b350bdf2 | 1909 | *** `clear-image-cache' can be told to flush only images of a specific file. |
16e82271 | 1910 | |
0c8b58e9 CY |
1911 | *** `vertical-motion' can now be given a goal column. |
1912 | It now accepts a cons cell (COLS . LINES) in its first argument, which | |
1913 | says to stop, where possible, at a pixel x-position equal to COLS | |
1914 | times the default column width. | |
16e82271 | 1915 | |
e589455f MR |
1916 | *** redisplay-end-trigger-functions, set-window-redisplay-end-trigger, |
1917 | and window-redisplay-end-trigger are obsolete. Use `jit-lock-register' | |
1918 | instead. | |
16e82271 | 1919 | |
605bfcb3 CY |
1920 | *** The new variables `wrap-prefix' and `line-prefix' specify display |
1921 | specs which are appended at display-time to every continuation line | |
1922 | and non-continuation line, respectively. In addition, Emacs | |
1923 | recognizes the `wrap-prefix' and `line-prefix' text or overlay | |
1924 | properties; these have the same effects as the variables of the same | |
1925 | name, but take precedence. | |
e589455f | 1926 | |
9ac64acd CY |
1927 | ** The Lisp interpreter now treats non-breaking space as whitespace. |
1928 | ||
b350bdf2 | 1929 | ** Miscellaneous new functions |
9f44d41a | 1930 | |
b350bdf2 | 1931 | *** `apply-partially' performs a "curried" application of a function. |
abf13a8b | 1932 | |
b350bdf2 CY |
1933 | *** `buffer-swap-text' swaps text between two buffers. This can be |
1934 | useful for modes such as tar-mode, archive-mode, RMAIL. | |
967b2682 | 1935 | |
6880f6db CY |
1936 | *** `combine-and-quote-strings' produces a single string from a list of strings |
1937 | sticking a separator string in between each pair, and quoting those | |
1938 | strings that include the separator as their substring. Useful for | |
1939 | consing shell command lines from the individual arguments. | |
1940 | ||
1941 | *** `custom-note-var-changed' tells Custom to treat the change in a | |
1942 | certain variable as having been made within Custom. | |
b350bdf2 CY |
1943 | |
1944 | *** `face-all-attributes' returns an alist describing all the basic | |
1945 | attributes of a given face. | |
1946 | ||
6880f6db CY |
1947 | *** `format-seconds' converts a number of seconds into a readable |
1948 | string of days, hours, etc. | |
b350bdf2 CY |
1949 | |
1950 | *** `image-refresh' refreshes all images associated with a given image | |
1951 | specification. | |
64639e26 | 1952 | |
6880f6db CY |
1953 | *** `locate-user-emacs-file' helps packages to select the appropriate |
1954 | place to save user-specific files. It defaults to `user-emacs-directory' | |
1955 | unless the file already exists at $HOME. | |
1956 | ||
6880f6db CY |
1957 | *** `read-color' reads a color name using the minibuffer. |
1958 | ||
6880f6db CY |
1959 | *** `read-shell-command' does what its name says, with completion. It |
1960 | uses the minibuffer-local-shell-command-map for that. | |
1961 | ||
6880f6db CY |
1962 | *** `split-string-and-unquote' splits a string into a list of substrings |
1963 | on the boundaries of a given delimiter, and unquotes the substrings that | |
1964 | are quoted. Useful for taking apart shell commands. | |
1965 | ||
b350bdf2 | 1966 | *** The two new functions `looking-at-p' and `string-match-p' can do |
45595a4f RS |
1967 | the same matching as `looking-at' and `string-match' without changing |
1968 | the match data. | |
89835619 | 1969 | |
81efacf9 CY |
1970 | *** The two new functions `make-serial-process' and |
1971 | `serial-process-configure' provide a Lisp interface to the new serial | |
1972 | port support (see Emacs changes, above). | |
1973 | ||
b350bdf2 CY |
1974 | ** Miscellaneous new variables |
1975 | ||
28aaa255 CY |
1976 | *** `auto-save-include-big-deletions', if non-nil, means auto-save is |
1977 | not turned off automatically after a big deletion. | |
1978 | ||
91f68422 CY |
1979 | *** `read-circle', if nil, disables the reading of recursive Lisp |
1980 | structures using the #N= and #N# syntax. | |
1981 | ||
b350bdf2 CY |
1982 | *** `this-command-keys-shift-translated' is non-nil if the key |
1983 | sequence invoking the current command was found by shift-translation. | |
1984 | ||
1985 | *** `window-point-insertion-type' determines the insertion-type of the | |
1986 | marker used for window-point. | |
1987 | ||
1988 | *** bookmark provides `bookmark-make-record-function' so special major | |
1989 | modes like Info can teach bookmark.el how to save and restore the | |
1990 | relevant data. | |
1991 | ||
b350bdf2 CY |
1992 | *** `fill-forward-paragraph-function' specifies which function the |
1993 | filling code should use to find paragraph boundaries. | |
1994 | ||
9bae34bf | 1995 | \f |
0bfd685e | 1996 | * New Packages for Lisp Programming in Emacs 23.1 |
efeb796b | 1997 | |
b350bdf2 CY |
1998 | ** The new package avl-tree.el deals with the AVL tree data structure. |
1999 | ||
2000 | ** The new package check-declare.el verifies the accuracy of | |
2001 | declare-function macros (see Lisp Changes, above). | |
d445b3f8 | 2002 | |
20202f5e | 2003 | ** find-cmd.el can build `find' commands using lisp syntax. |
6dfcbe31 | 2004 | |
babc4609 JL |
2005 | ** The package misearch.el has been added. It allows Isearch to search |
2006 | through multiple buffers. A variable `multi-isearch-next-buffer-function' | |
2007 | defines the function to call to get the next buffer to search in the series | |
2008 | of multiple buffers. Top-level commands `multi-isearch-buffers', | |
2009 | `multi-isearch-buffers-regexp', `multi-isearch-files' and | |
2010 | `multi-isearch-files-regexp' accept a single argument that specifies | |
2011 | a list of buffers/files to search for a string/regexp. | |
9097e8af | 2012 | |
b350bdf2 CY |
2013 | ** The new major mode `special-mode' is intended as a parent for |
2014 | major modes such as those that set the "'mode-class 'special" property. | |
d53a60a6 | 2015 | |
05197f40 | 2016 | \f |
a933dad1 | 2017 | ---------------------------------------------------------------------- |
5b87ad55 | 2018 | This file is part of GNU Emacs. |
a933dad1 | 2019 | |
ab73e885 | 2020 | GNU Emacs is free software: you can redistribute it and/or modify |
5b87ad55 | 2021 | it under the terms of the GNU General Public License as published by |
ab73e885 GM |
2022 | the Free Software Foundation, either version 3 of the License, or |
2023 | (at your option) any later version. | |
5b87ad55 GM |
2024 | |
2025 | GNU Emacs is distributed in the hope that it will be useful, | |
2026 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
2027 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
2028 | GNU General Public License for more details. | |
a933dad1 | 2029 | |
5b87ad55 | 2030 | You should have received a copy of the GNU General Public License |
ab73e885 | 2031 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
a933dad1 | 2032 | |
05197f40 | 2033 | \f |
a933dad1 DL |
2034 | Local variables: |
2035 | mode: outline | |
2036 | paragraph-separate: "[ \f]*$" | |
2037 | end: | |
ab5796a9 | 2038 | |
a533413c | 2039 | arch-tag: e759449d-88b3-4de4-9900-3a6c3dfa23e2 |