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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 | ||
31764e15 SM |
145 | *** log-edit-strip-single-file-name controls whether or not single filenames |
146 | are stripped when copying text from the ChangeLog to the *VC-Log* buffer. | |
147 | ||
ee047ec4 GM |
148 | ** Calendar and diary |
149 | ||
150 | --- | |
151 | *** The command `calendar-current-date' accepts an optional argument | |
152 | giving an offset from today. | |
153 | ||
7b607b73 EZ |
154 | ** Desktop |
155 | ||
156 | --- | |
8dca5052 EZ |
157 | *** The default value for `desktop-buffers-not-to-save' is nil. |
158 | This means Desktop will try restoring all buffers, when you restart | |
159 | your Emacs session. Also, `desktop-buffers-not-to-save' is only | |
160 | effective for buffers that have no associated file. If you want to | |
161 | exempt buffers that do correspond to files, customize the value of | |
162 | `desktop-files-not-to-save' instead. | |
7b607b73 | 163 | |
9f18817f JL |
164 | ** Miscellaneous |
165 | ||
166 | *** The new command `async-shell-command' bound globally to `M-&' executes | |
167 | the command asynchronously without the need to manually add ampersand to | |
168 | the end of the command. Its output appears in the buffer `*Async Shell | |
169 | Command*'. | |
0badeef4 GM |
170 | |
171 | --- | |
172 | *** Elint now uses compilation-mode, and recognizes more built-in | |
173 | functions and variables. | |
af077012 SY |
174 | |
175 | \f | |
176 | * New Modes and Packages in Emacs 23.2 | |
177 | ||
304fe7fa | 178 | ** js.el is a new major mode for JavaScript files. |
0822135e CY |
179 | |
180 | \f | |
181 | * Lisp changes in Emacs 23.2 | |
182 | ||
4e3b4528 SM |
183 | ** All the default-FOO variables that hold the default value of the FOO |
184 | variable, are now declared obsolete. | |
185 | ||
03a74b84 SM |
186 | ** read-key is a function halfway between read-event and read-key-sequence. |
187 | It reads a single key, but obeys input and escape sequence decoding. | |
188 | ** start-process-shell-command start-file-process-shell-command only | |
189 | take a single `command' argument any more. | |
0822135e CY |
190 | ** Hash tables have a new printed representation that is readable. |
191 | The feature `hashtable-print-readable' identifies this new | |
192 | functionality. | |
3c736e33 KH |
193 | |
194 | ** Functions performing Unicode normalization are added. They are: | |
195 | ucs-normalize-NFD-region, ucs-normalize-NFD-string, | |
196 | ucs-normalize-NFC-region, ucs-normalize-NFC-string, | |
197 | ucs-normalize-NFKD-region, ucs-normalize-NFKD-string, | |
198 | ucs-normalize-NFKC-region, ucs-normalize-NFKC-string, | |
199 | ucs-normalize-HFS-NFD-region, ucs-normalize-HFS-NFD-string, | |
200 | ucs-normalize-HFS-NFC-region, ucs-normalize-HFS-NFC-string. | |
9f18817f | 201 | |
009c963c | 202 | \f |
0bfd685e | 203 | * Installation Changes in Emacs 23.1 |
c58dccad | 204 | |
3f7194ed | 205 | ** The default X toolkit is now Gtk+, rather than Lucid. |
09e18d03 CY |
206 | The configure option `--with-gtk' has been removed. Gtk is now the |
207 | default toolkit, but you can use --with-x-toolkit=gtk if necessary. | |
3f7194ed | 208 | |
09e18d03 CY |
209 | ** New font code. |
210 | Fonts are handled by new code capable of dealing with multiple font | |
de9efca0 | 211 | backends. This uses the freetype and fontconfig libraries. |
16e82271 | 212 | |
09e18d03 CY |
213 | *** Emacs now accepts font names supplied in the fontconfig format |
214 | (e.g. "monospace-12:bold") and GTK format (e.g. "Monospace Bold 12"). | |
1abe3a1e | 215 | |
09e18d03 CY |
216 | *** Added support for local fonts (fonts installed on the machine |
217 | where Emacs is running). | |
218 | ||
219 | *** Added support for the Xft library for antialiasing. | |
220 | ||
221 | *** Added support for the otf library for complex text layout by | |
222 | OpenType fonts. | |
223 | ||
224 | *** Added support for the m17n library for text shaping. | |
15f02f65 | 225 | |
09e18d03 | 226 | ** Changes to image support |
16e82271 | 227 | |
09e18d03 | 228 | *** configure now checks for libgif before libungif when searching for |
9d3cc9b2 | 229 | a GIF library. |
16e82271 | 230 | |
09e18d03 CY |
231 | *** Emacs now supports the SVG image format through librsvg2. |
232 | ||
fab17942 JR |
233 | *** Emacs now supports multi-page TIFF images. |
234 | ||
006a2cde | 235 | ** New NeXTSTEP-based port |
3dcdb6ea | 236 | This provides support for GNUstep (via the GNUstep libraries) and Mac |
1e9b0fb2 | 237 | OS X (via the Cocoa libraries). |
043023ca | 238 | |
2e538385 | 239 | Specify --with-ns to configure for this. By default, a self-contained |
043023ca CY |
240 | app will be built (containing all lisp). To install/share lisp with |
241 | other emacsen (e.g. X11 build) use --disable-ns-self-contained. See | |
242 | nextstep/README and nextstep/INSTALL in the Emacs source directory. | |
006a2cde CY |
243 | |
244 | ** Mac OS X is no longer supported via Carbon. | |
245 | Use the NeXTSTEP port, described above. | |
36e625ec | 246 | |
09e18d03 CY |
247 | ** The new configuration option "--with-dbus" enables D-Bus language |
248 | bindings for Emacs. | |
07e5c0b0 | 249 | |
bb9f7948 EZ |
250 | ** Support for many obsolete platforms has been removed. |
251 | See the list at the end of etc/MACHINES for details. | |
16e82271 | 252 | |
09e18d03 | 253 | *** Support for systems without alloca has been removed. |
16e82271 | 254 | |
09e18d03 | 255 | *** Support for Sun windows has been removed. |
16e82271 | 256 | |
2e0ef05b | 257 | *** The `emacstool' utility has been removed. |
09e18d03 | 258 | |
006a2cde | 259 | ** The following platforms will be removed in a future Emacs version: |
9bc072cc CY |
260 | If you are still using Emacs on one of these platforms, please email |
261 | emacs-devel@gnu.org to inform the Emacs developers. | |
006a2cde | 262 | |
9bc072cc | 263 | *** Old GNU/Linux systems based on libc version 5. |
006a2cde | 264 | |
9bc072cc CY |
265 | *** Old FreeBSD, NetBSD, and OpenBSD systems based on the COFF |
266 | executable format. | |
006a2cde CY |
267 | |
268 | *** Solaris versions 2.6 and below. | |
269 | ||
32847230 CY |
270 | *** Solaris on IBM RS6000 machines. |
271 | ||
272 | *** UNIX System V (the original SysV, not later platforms based on it). | |
273 | ||
9bc072cc CY |
274 | *** Unixware on non-x86 machines. |
275 | ||
32847230 CY |
276 | *** Platforms not supporting shared libraries (i.e., requiring the |
277 | NO_SHARED_LIBS compilation flag). | |
006a2cde | 278 | |
a46ee55c GM |
279 | ** The configure options `--with-gcc', `--without-gcc' have been removed. |
280 | Configure will use gcc by default. Set the CC environment variable if | |
281 | you need control over which C compiler is used. | |
282 | ||
09e18d03 CY |
283 | ** The refcards are now shipped as PDF files. |
284 | ||
3b75ca8b GM |
285 | ** The manuals are now licensed under the GNU Free Documentation License v1.3, |
286 | or any later version. | |
287 | ||
09e18d03 CY |
288 | ** Emacs 23 comes with a new set of default icons. |
289 | Various resolutions are available as etc/images/icons/hicolor/*/apps/emacs.png. | |
290 | The Emacs 22 icon is available as `emacs22.png' in the same location. | |
4e5cdb4f | 291 | \f |
6dadd99f NR |
292 | * Changes in Emacs 23.1 |
293 | ||
09e18d03 | 294 | ** Improved X Window System support |
16e82271 | 295 | |
09e18d03 CY |
296 | *** Emacs now supports using both X displays and ttys in one session. |
297 | With an Emacs server active (M-x server-start), `emacsclient -t' | |
298 | creates a tty frame connected to the running emacs server. You can | |
299 | use any number of different ttys. `emacsclient -c' creates a new X11 | |
300 | frame on the current $DISPLAY (or a tty frame if $DISPLAY is not set). | |
e390f3a3 JD |
301 | There may be problems if a display exits unexpectedly and Emacs is compiled |
302 | with Gtk+, see etc/PROBLEMS. | |
780d7bb9 RS |
303 | |
304 | You can test for the presence of this feature in your Lisp code by | |
305 | testing for the `multi-tty' feature. | |
16e82271 CY |
306 | |
307 | *** Emacs starts in the background, as a daemon, when given the | |
eab2ee89 DN |
308 | --daemon command line argument. It disconnects from the terminal and |
309 | starts the server. Clients can connect and create graphical or | |
310 | terminal frames using emacsclient. | |
16e82271 | 311 | |
c569485c | 312 | **** emacsclient starts emacs in daemon mode and connects to it when |
82d0a250 DN |
313 | --alternate-editor="" is used (or when the evironment variable |
314 | ALTERNATE_EDITOR is set to "") and emacsclient cannot connect to an | |
c569485c DN |
315 | emacs server. |
316 | ||
09e18d03 | 317 | *** The new command close-display-connection closes a connection to a |
717c97e5 | 318 | remote display. There are some bugs for Gtk+. See etc/PROBLEMS. |
d82c3d44 | 319 | |
09e18d03 CY |
320 | *** Emacs now supports the XEmbed specification. |
321 | You can embed Emacs in another application on X11. The new command line | |
322 | option --parent-id is used to pass the parent window id to Emacs. See | |
7b476dbe JD |
323 | http://standards.freedesktop.org/xembed-spec/xembed-spec-latest.html |
324 | for details about XEmbed. | |
16e82271 | 325 | |
09e18d03 CY |
326 | *** Emacs can now set the frame opacity. |
327 | The opacity of a frame can be controlled by setting the `alpha' frame | |
328 | parameter. This only takes effect on a compositing window manager for | |
920ab46c SZ |
329 | the X Window System, such as Compiz, Beryl and Compiz Fusion, on Mac |
330 | OS X, or on Windows 2000 and later versions of Windows. | |
55f9bad5 GM |
331 | |
332 | The alpha parameter should be an integer between 0 (transparent) and | |
09e18d03 CY |
333 | 100 (opaque), or a float number between 0.0 and 1.0. It can also be a |
334 | cons cell (ACTIVE . INACTIVE), where ACTIVE is the opacity of an | |
540f3092 | 335 | active frame and INACTIVE is the opacity of non-active frames. |
55f9bad5 | 336 | |
09e18d03 CY |
337 | The variable `frame-alpha-lower-limit' defines a lower bound for the |
338 | opacity; the default is 20. | |
55f9bad5 | 339 | |
09e18d03 | 340 | ** Internationalization changes |
16e82271 | 341 | |
09e18d03 CY |
342 | *** The Emacs character set is now a superset of Unicode. |
343 | (It has about four times the code space, which should be plenty). | |
0a963185 | 344 | |
09e18d03 | 345 | The internal encoding used for buffers and strings is now |
16e82271 CY |
346 | Unicode-based and called `utf-8-emacs' (`emacs-internal' is an alias |
347 | for this). This encoding is backward-compatible with Unicode's UTF-8 | |
348 | encoding. The internal encoding previously used by Emacs, | |
349 | `emacs-mule', is still available for reading and writing files. | |
6dadd99f | 350 | |
09e18d03 CY |
351 | During byte-compilation, Emacs 23 uses `utf-8-emacs' to write files. |
352 | As a result, byte-compiled files containing non-ASCII characters can't | |
353 | be read by earlier versions of Emacs. Files compiled by Emacs 20, 21, | |
16e82271 CY |
354 | or 22 are loaded correctly as `emacs-mule' (whether or not they |
355 | contain multibyte characters). This takes somewhat more time, so it | |
356 | may be worth recompiling existing .elc files which don't need to be | |
357 | shared with older Emacsen. | |
3ae459e5 | 358 | |
09e18d03 | 359 | *** There are new coding systems/aliases; see M-x list-coding-systems. |
c2e8590b | 360 | |
09e18d03 CY |
361 | *** There is a new charset implementation with many new charsets. |
362 | See M-x list-character-sets. New charsets can be defined conveniently | |
363 | as tables of unicodes. | |
1abe3a1e | 364 | |
09e18d03 CY |
365 | *** There are new language environments for Chinese-GBK, |
366 | Chinese-GB18030, Khmer, Bengali, Punjabi, Gujarati, Oriya, Telugu, | |
367 | Sinhala, and TaiViet. | |
16e82271 | 368 | |
09e18d03 CY |
369 | *** The minor modes unify-8859-on-encoding-mode and |
370 | unify-8859-on-decoding-mode are obsolete. | |
16e82271 | 371 | |
e94d0645 JL |
372 | *** `ucs-insert' is bound to `C-x 8 RET' and in addition to hex numbers |
373 | accepts numbers in hash notation (e.g. #o21430 for octal, or #10r8984 for | |
374 | decimal). It also accepts Unicode character names with completion. | |
16e82271 | 375 | |
6d496c76 TZ |
376 | *** The `cyrillic-translit' input method supports many new characters. |
377 | Common typographical characters available from Unicode were added to | |
378 | `cyrillic-translit': punctuation marks, accented characters, fractions, | |
379 | and others. | |
380 | ||
09e18d03 | 381 | ** Emacs now supports serial port access on GNU/Linux, Unix, and |
81efacf9 CY |
382 | Windows. The new command `serial-term' starts an interactive terminal |
383 | on a serial port. The serial port can be configured at runtime with | |
384 | the mode-line mouse menu. | |
6c5d503f | 385 | |
09e18d03 | 386 | ** Menu Bar changes |
16e82271 | 387 | |
09e18d03 CY |
388 | *** In the Options menu, the "Set Default Font" item applies the |
389 | selected font to the `default' face on all frames, not just the | |
390 | current frame. Furthermore, if Emacs is compiled with both GTK and | |
391 | Fontconfig support, the "Set Default Font" item uses the GTK font | |
392 | selection dialog instead of an Emacs pop-up menu. | |
16e82271 | 393 | |
09e18d03 CY |
394 | *** The font setting chosen by "Set Default Font" is saved if the |
395 | "Save Options" item is used. | |
1b21ee06 | 396 | |
b350bdf2 CY |
397 | *** The Tools menu contains a new Encryption/Decryption submenu. |
398 | This contains commands provided by EasyPG, the newly-included | |
399 | interface to GnuPG (see New Modes and Packages). | |
16e82271 | 400 | |
81efacf9 CY |
401 | *** In the Options menu, the "Truncate Long Lines in the Buffer" entry |
402 | has been replaced with a submenu offering three different ways to | |
403 | handle long lines: truncation, continuation at the window edge, and | |
697f6b43 | 404 | the new word wrapping behavior (see Editing Changes, below). |
16e82271 | 405 | |
c1337511 DN |
406 | *** Improvements to menus for major and minor modes |
407 | More major and minor modes now have a mode specific menu, and existing | |
408 | mode menus have been improved to include more functionality. | |
409 | ||
09e18d03 | 410 | ** Mode-line changes |
16e82271 | 411 | |
09e18d03 CY |
412 | *** The mode-line displays a `@', instead of `-', if the |
413 | default-directory for the current buffer is on a remote machine. | |
16e82271 | 414 | |
09e18d03 CY |
415 | *** The mode-line displays a mode menu when mouse-1 is clicked on a |
416 | minor mode, in the same way as it already did for major modes. | |
16e82271 | 417 | |
09e18d03 CY |
418 | *** The `mode-line-emphasis' face is used to highlight certain |
419 | mode-line information (e.g. waiting for a VC command to finish). | |
16e82271 | 420 | |
c1337511 | 421 | *** The mode-line tooltips have been improved to provide more details. |
16e82271 | 422 | |
c1337511 DN |
423 | *** The VC, line/colum number and minor mode indicators on the mode |
424 | line are now interactive: mouse-1 can be used on them to pop up a menu. | |
425 | ||
b798e26a GM |
426 | ** File deletion can make use of the Recycle Bin or system Trash folder. |
427 | Set `delete-by-moving-to-trash' non-nil to use this. Deleted files | |
0956be4f | 428 | and directories will then be sent to the Recycle Bin on Windows, and |
b798e26a GM |
429 | to `trash-directory' on other systems. |
430 | ||
09e18d03 | 431 | ** Directory-local variables can now be defined. |
fc0318c6 JL |
432 | By default, Emacs looks in .dir-locals.el for directory-local |
433 | variables. For more information, see `dir-locals-set-directory-class' | |
434 | and `dir-locals-set-class-variables'. | |
307f3501 | 435 | |
b798e26a GM |
436 | ** Emacs can now use `auth-source' for authentication. |
437 | `smtpmail' and `url' (Tramp and Gnus also) use `auth-source' to obtain | |
438 | login names and passwords. The match, if found, is reported | |
439 | in *Messages* with the password blanked out. | |
440 | ||
441 | ** `where-is-preferred-modifier' can specify your favorite modifier. | |
442 | ||
6dadd99f | 443 | \f |
0bfd685e | 444 | * Startup Changes in Emacs 23.1 |
21f7b9d8 | 445 | |
3063e326 JL |
446 | ** The option `inhibit-startup-screen' (with aliases to old names |
447 | `inhibit-splash-screen' and `inhibit-startup-message') doesn't inhibit | |
448 | display of the initial message in the *scratch* buffer. If you don't | |
449 | want to display the initial message in the *scratch* buffer at startup, | |
450 | you can set the option `initial-scratch-message' to nil. | |
451 | ||
56e1896b JL |
452 | ** New user option `initial-buffer-choice' specifies what to display |
453 | after starting Emacs: startup screen, *scratch* buffer, visiting a | |
454 | file or directory. | |
455 | ||
aa5310e4 DK |
456 | ** New alias `argv' for `command-line-args-left' |
457 | This is a convenience alias, so that one can write `(pop argv)' | |
458 | inside of --eval command line arguments in order to access | |
459 | following arguments. | |
f8fd7ed3 GM |
460 | |
461 | ** The abbrev file is no longer read at startup in batch mode. | |
f36acfd9 EZ |
462 | |
463 | ** Emacs now supports invocation by an X session manager. | |
464 | It can save a session and restore it later. See the documentation of | |
465 | the functions `emacs-session-save' and `emacs-session-restore'. | |
466 | (Actually, this feature was introduced with Emacs 22, but it was not | |
467 | documented.) | |
c44da964 | 468 | \f |
0bfd685e | 469 | * Incompatible Editing Changes in Emacs 23.1 |
b58cb59f | 470 | |
d1949cd5 JL |
471 | ** In Dired, `dired-flag-garbage-files' is rebound from `&' to `%&' |
472 | on the regexp command prefix map. | |
473 | ||
117907d4 JL |
474 | ** In Dired-x, all command guesses for ! are now added to the default |
475 | list accessible by M-n instead of pushing all guesses temporarily into | |
476 | the history list. | |
477 | ||
e94d0645 JL |
478 | ** In Isearch mode, a special case of typing `C-w' at the beginning of |
479 | the minibuffer that toggles word search (i.e. using key sequences | |
480 | `C-s RET C-w' or `C-s M-e C-w') is obsolete. You can use the global key | |
481 | `M-s w' to start word search, or type `M-s w' in Isearch mode to | |
fd4c2a39 JL |
482 | toggle word search. To start nonincremental word search you can now use |
483 | `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 | 484 | |
45ad1cc5 JL |
485 | ** In Info, `Info-search' is unbound from `M-s' to allow using `M-s w' |
486 | for word search as well as other search commands from the global prefix | |
487 | key `M-s'. `Info-search' is still bound to `s', and also incremental | |
488 | search commands `C-s', `C-M-s', `C-r', `C-M-r' are available for searching | |
489 | through multiple Info nodes, together with their nonincremental versions | |
490 | `C-s RET', `C-r RET', `C-M-s RET', `C-M-r RET', `M-s w RET'. | |
491 | ||
16e82271 CY |
492 | ** In Text mode, `center-line' and `center-paragraph' are rebound from |
493 | `M-s' and `M-S' to global keys `M-o M-s' and `M-o M-S' on the global | |
494 | prefix map `M-o', which is intended for such formatting commands. | |
4e14951f | 495 | |
e405fa5f | 496 | ** The following input methods were removed in Emacs 22.2, but this was |
9a930d75 | 497 | not advertised: danish-alt-postfix, esperanto-alt-postfix, |
e405fa5f RS |
498 | finnish-alt-postfix, german-alt-postfix, icelandic-alt-postfix, |
499 | norwegian-alt-postfix, scandinavian-alt-postfix, spanish-alt-postfix, | |
500 | and swedish-alt-postfix. Use the versions without "alt-", which are | |
501 | identical. | |
0b0914ae | 502 | |
406c0f12 | 503 | \f |
0bfd685e | 504 | * Editing Changes in Emacs 23.1 |
406c0f12 | 505 | |
0c8b58e9 CY |
506 | ** The C-n and C-p line-motion commands now move by screen lines, |
507 | taking continued lines and variable-width characters into account. | |
508 | Setting `line-move-visual' to nil reverts this to the previous | |
16e82271 CY |
509 | behavior (i.e., motion by logical lines based on buffer contents |
510 | alone). | |
0c8b58e9 | 511 | |
09e18d03 | 512 | ** C-x C-c now invokes `save-buffers-kill-terminal', and C-z now |
16e82271 | 513 | invokes `suspend-frame'. These changes are for compatibility with the |
09e18d03 | 514 | new multi-tty support (see `Improved X Window System support' above). |
3ae459e5 | 515 | |
09e18d03 | 516 | ** Mark changes |
16e82271 | 517 | |
3ae459e5 | 518 | *** Transient Mark mode is now on by default. |
16e82271 | 519 | |
3ae459e5 | 520 | *** mark-even-if-inactive now defaults to t |
16e82271 | 521 | |
b350bdf2 CY |
522 | *** When Transient Mark mode is on, C-SPC C-SPC pushes a mark without |
523 | activating it. | |
16e82271 | 524 | |
3ae459e5 CY |
525 | *** When Transient Mark mode is on, M-q now fills the region if the |
526 | region is active. Otherwise, it fills the current paragraph. | |
16e82271 | 527 | |
3ae459e5 CY |
528 | *** When Transient Mark mode is on, M-$ now checks spelling of the |
529 | region if the region is active. Otherwise, it checks spelling of the | |
dc868f13 | 530 | word at point. |
16e82271 | 531 | |
3ae459e5 CY |
532 | *** When Transient Mark mode is on, TAB now indents the region if the |
533 | region is active. | |
16e82271 CY |
534 | |
535 | *** The variable `use-empty-active-region' controls whether an empty | |
536 | active region in Transient Mark mode should make commands operate on | |
537 | that empty region. | |
3ae459e5 CY |
538 | |
539 | ** Temporarily active regions | |
16e82271 | 540 | |
3ae459e5 CY |
541 | *** The new variable shift-select-mode, non-nil by default, controls |
542 | shift-selection. When Shift Select mode is on, shift-translated | |
543 | motion keys (e.g. S-left and S-down) activate and extend a temporary | |
544 | region, similar to mouse-selection. | |
16e82271 | 545 | |
3ae459e5 CY |
546 | *** Temporarily active regions, created using shift-selection or |
547 | mouse-selection, are not necessarily deactivated in the next command. | |
548 | They are only deactivated after point motion commands that are not | |
549 | shift-translated, or after commands that would ordinarily deactivate | |
550 | the mark in Transient Mark mode (e.g., any command that modifies the | |
551 | buffer). | |
552 | ||
3307af6c | 553 | ** Minibuffer and completion changes |
16e82271 | 554 | |
206faa92 CY |
555 | *** Emacs may ask for confirmation before opening a non-existent file |
556 | or buffer. By default, Emacs requests confirmation if you type RET | |
557 | immediately after TAB, and the resulting input is not an existing file | |
558 | or buffer; this usually happens when the minibuffer input did not | |
559 | complete far enough and you entered RET by mistake. In that case, | |
560 | Emacs puts the message "[Confirm]" in the minibuffer; type RET again | |
561 | to create the file or buffer. | |
562 | ||
563 | The new variable confirm-nonexistent-file-or-buffer determines whether | |
564 | Emacs asks for confirmation. The default value is `after-completion'. | |
565 | If you change it to t, Emacs always asks for confirmation; if you | |
566 | change it to nil, Emacs never asks for confirmation. | |
16e82271 | 567 | |
aea75a87 CY |
568 | *** The rules for performing completion have been changed. |
569 | When generating completion alternatives, Emacs now takes the | |
570 | minibuffer text after point, if any, into account: this text is | |
571 | treated as a substring of the remaining part of the completion | |
572 | alternative (i.e., the part not matched by the minibuffer text before | |
573 | point). If no completion alternatives are found this way, Emacs | |
574 | attempts to perform partial-completion. If still no completion | |
575 | alternatives are found, we fall back on the Emacs 22 rules for | |
576 | performing completion. | |
577 | ||
578 | The new variable `completion-styles' can be customized to choose your | |
579 | favorite completion style. | |
16e82271 | 580 | |
d47a29c1 JL |
581 | *** When M-n in the minibuffer reaches the end of the list of defaults, |
582 | it adds the completion list to the end, so next M-n continues putting | |
583 | completion items to the minibuffer. The same principle applies to | |
584 | incremental search commands as well: C-s or C-M-s starts searching | |
585 | the default values and after the end of defaults they continue | |
586 | searching minibuffer completion items. | |
16e82271 | 587 | |
09e18d03 | 588 | *** Minibuffer input of shell commands now comes with completion. |
16e82271 | 589 | |
09e18d03 CY |
590 | *** In the `C-x d' (Dired) prompt, typing M-n gives the visited file |
591 | name of the current buffer. | |
dc2f6c05 | 592 | |
09e18d03 CY |
593 | *** In the M-! (shell-command) prompt, M-n provides some default commands. |
594 | These are guessed using the file extension of the current file, based | |
595 | on the file-handlers specified in the operating system's `mailcap' | |
596 | file. The ! command in Dired (dired-do-shell-command) works | |
597 | similarly, using the file displayed on the current line. | |
117907d4 JL |
598 | |
599 | *** A list of regexp default values is available via M-n for `occur', | |
600 | `keep-lines', `flush-lines' and `how-many'. This list includes the active | |
4f75e082 JL |
601 | region in transient-mark-mode, the word under the cursor, the last Isearch |
602 | regexp, the last Isearch string and the last replacement regexp. | |
16e82271 | 603 | |
3353f870 CY |
604 | *** When enable-recursive-minibuffers is non-nil, operations which use |
605 | switch-to-buffer (such as C-x b and C-x C-f) do not fail any more when | |
606 | used in a minibuffer or a dedicated window. Instead, they fallback on | |
607 | using pop-to-buffer, which will use some other window. This change | |
608 | has no effect when enable-recursive-minibuffers is nil (the default). | |
16e82271 | 609 | |
4f75e082 JL |
610 | *** Isearch started in the minibuffer searches in the minibuffer history. |
611 | Reverse Isearch commands (C-r, C-M-r) search in previous minibuffer | |
612 | history elements, and forward Isearch commands (C-s, C-M-s) search in | |
297b8ccd JL |
613 | next history elements. When the reverse search reaches the first history |
614 | element, it wraps to the last history element, and the forward search | |
615 | wraps to the first history element. When the search is terminated, the | |
616 | history element containing the search string becomes the current. | |
16e82271 | 617 | |
6c897494 CY |
618 | *** The variable read-file-name-completion-ignore-case overrides |
619 | completion-ignore-case for file name completion. | |
16e82271 | 620 | |
6c897494 CY |
621 | *** The variable read-buffer-completion-ignore-case overrides |
622 | completion-ignore-case for buffer name completion. | |
16e82271 | 623 | |
3307af6c CY |
624 | *** The new command `minibuffer-force-complete' chooses one of the |
625 | possible completions, rather than stopping at the common prefix. | |
16e82271 | 626 | |
3307af6c CY |
627 | *** If `completion-auto-help' is `lazy', Emacs shows the completions |
628 | buffer only on the second attempt to complete. This was already | |
629 | supported in `partial-completion-mode'. | |
6c897494 | 630 | |
505d8756 | 631 | ** Face changes |
16e82271 | 632 | |
b350bdf2 CY |
633 | *** S-down-mouse-1 now pops up a menu for changing the font and text |
634 | size of the default face in the current buffer. The face is changed | |
133c4dc5 | 635 | via face remapping (see Lisp changes, below). |
16e82271 | 636 | |
5f9e21a9 CY |
637 | *** New commands to change the default face size in the current buffer. |
638 | To increase it, type `C-x C-+' or `C-x C-='. To decrease it, type | |
639 | `C-x C--'. To restore the default (global) face size, type `C-x C-0'. | |
d59f7c45 CY |
640 | These work via Text Scale mode, a new minor mode. |
641 | ||
642 | The final key in the above commands may be repeated without the | |
643 | leading `C-x', e.g. `C-x C-= C-= C-=' increases the face height by | |
644 | three steps. Each step scales the height of the default face by the | |
645 | value of the variable `text-scale-mode-step'. | |
646 | ||
60959d23 CY |
647 | *** The commands buffer-face-mode and buffer-face-set can be used to |
648 | remap the default face in the current buffer. See "Buffer Face mode", | |
649 | under New Modes and Packages. | |
f20186fd | 650 | |
09e18d03 | 651 | ** Primary selection changes |
16e82271 | 652 | |
b350bdf2 CY |
653 | *** You can disable kill ring commands from accessing the primary |
654 | selection by setting `x-select-enable-primary' to nil. | |
2e282009 | 655 | |
697f6b43 CY |
656 | ** Continuation lines can now be wrapped at word boundaries |
657 | (word-wrapping). This is controlled by the new per-buffer variable | |
658 | `word-wrap'. Word wrapping does not take place if continuation lines | |
659 | are not shown, e.g. if truncate-lines is non-nil. The most convenient | |
660 | way to enable word-wrapping is using the new minor mode Visual Line | |
661 | mode; in addition to setting `word-wrap' to t, this rebinds some | |
662 | editing commands to work on screen lines rather than text lines. See | |
663 | New Modes and Packages, below. | |
85b1de32 | 664 | |
463c6766 | 665 | ** Window management changes |
16e82271 | 666 | |
463c6766 CY |
667 | *** truncate-partial-width-windows now accepts integer values, which |
668 | specify a minimum window width for partial-width windows, below which | |
7d09b7a6 | 669 | lines are truncated. The default has been changed to 50. |
463c6766 CY |
670 | |
671 | *** The new command balance-windows-area balances windows both | |
672 | vertically and horizontally. | |
16e82271 | 673 | |
8f5cee6a MR |
674 | *** pop-to-buffer now always sets input focus when the popped-to window |
675 | is on a different frame. | |
676 | ||
09e18d03 | 677 | ** Miscellaneous changes: |
16e82271 | 678 | |
09e18d03 CY |
679 | *** C-l is bound to the new command recenter-top-bottom, rather than recenter. |
680 | This moves the current line to window center, top and bottom on | |
cdc0338e | 681 | successive invocations. |
16e82271 | 682 | |
09e18d03 | 683 | *** scroll-preserve-screen-position also preserves the column position. |
16e82271 | 684 | |
09e18d03 CY |
685 | *** If `yank-pop-change-selection' is t, rotating the kill ring also |
686 | updates the selection or clipboard to the current yank, just as M-w | |
687 | would do so with the text it copies to the kill ring. | |
16e82271 | 688 | |
09e18d03 CY |
689 | *** C-M-% now shows replacement as it would look in the buffer, with |
690 | `\N' and `\&' substituted according to the match. Old behavior can be | |
691 | restored by customizing `query-replace-show-replacement'. | |
692 | ||
693 | *** The command shell prompts for the default directory, when it is | |
694 | called with a prefix and the default directory is a remote file name. | |
695 | This is because some file name handlers (like ange-ftp) are not able to | |
696 | run processes remotely. | |
16e82271 | 697 | |
09e18d03 CY |
698 | *** The new command kill-matching-buffers kills buffers whose name |
699 | matches a regexp. | |
16e82271 | 700 | |
ae98e41f CY |
701 | *** The value of comment-style now defaults to `indent'. |
702 | Thefore, comment-start markers are inserted at the current indentation | |
703 | of the region to comment, rather than the leftmost column. | |
16e82271 | 704 | |
b350bdf2 CY |
705 | *** The new commands `pp-macroexpand-expression' and |
706 | `pp-macroexpand-last-sexp' pretty-print macro expansions. | |
16e82271 | 707 | |
018a960d EZ |
708 | *** The new command `set-file-modes' allows to set file's mode bits. |
709 | The mode bits can be specified in symbolic notation, like with GNU | |
e6979067 DN |
710 | Coreutils, in addition to an octal number. `chmod' is a new |
711 | convenience alias for this function. | |
d334fa1e | 712 | |
d2c52e26 EZ |
713 | *** `next-error-recenter' specifies how next-error should recenter the |
714 | visited source file. Its value can be a number (for example, 0 for | |
715 | top line, -1 for bottom line), or nil for no recentering. | |
16e82271 | 716 | |
c594dbfa CY |
717 | *** When typing in a password in the echo area, C-y yanks the current |
718 | kill into the password. | |
16e82271 | 719 | |
e02ec85e EZ |
720 | *** Tooltip frame parameters `font' and `color' in `tooltip-frame-parameters' |
721 | are ignored. Customize the `tooltip' face instead. | |
16e82271 | 722 | |
53374291 | 723 | *** `mkdir' is a new convenience alias for `make-directory'. |
09e18d03 CY |
724 | \f |
725 | * New Modes and Packages in Emacs 23.1 | |
e11910e2 GM |
726 | |
727 | ** Auto Composition Mode is a minor mode that composes characters | |
728 | automatically when they are displayed. It is globally on by default. | |
729 | It uses `auto-composition-function' (default `auto-compose-chars'). | |
730 | ||
09e18d03 | 731 | ** Bubbles, a new game, is similar to SameGame. |
60959d23 CY |
732 | |
733 | ** Buffer Face mode is a minor mode for remapping the default face in | |
734 | the current buffer. The variable `buffer-face-mode-face' specifies | |
735 | the face to remap to. The command `buffer-face-set' prompts for a | |
736 | face name, sets `buffer-face-mode-face' to it, and enables | |
737 | buffer-face-mode. See "Face changes", under Editing Changes, for a | |
738 | description of face remapping. | |
739 | ||
18e4b9bd JL |
740 | ** butterfly flips the desired bit on the drive platter. |
741 | See http://xkcd.com/378/ | |
f6b26818 | 742 | |
7ef39c6e GM |
743 | ** bug-reference.el provides clickable links to bug reports. |
744 | ||
09e18d03 CY |
745 | ** dbus.el provides D-Bus language bindings. |
746 | D-Bus is an inter-process communication mechanism for applications | |
b350bdf2 | 747 | residing on the same host. See the manual for details. |
09e18d03 | 748 | |
85c78c0f | 749 | ** DocView mode allows viewing of PDF, PostScript and DVI documents. |
b350bdf2 CY |
750 | One can also search for a regular expression in the document. For |
751 | details, see the commentary in doc-view.el. | |
09e18d03 | 752 | |
4545a339 CY |
753 | PDF and DVI files are now opened in Doc View mode by default. |
754 | ||
755 | In Postcript mode, C-c C-c launches Doc View minor mode for viewing | |
756 | the postscript file. | |
5ed3edfa | 757 | |
b350bdf2 CY |
758 | ** EasyPG provides an interface to the GNU Privacy Guard (GnuPG). |
759 | It includes a GnuPG keyring browser, cryptographic operations on | |
760 | regions and files, and automatic encryption of *.gpg files. For | |
761 | details, see the EasyPG Assistant User's Manual. | |
09e18d03 CY |
762 | |
763 | ** json.el is a library for parsing and generating JSON | |
764 | (JavaScript Object Notation), a lightweight data-interchange format. | |
765 | ||
766 | ** linum.el is a new minor mode to display line numbers for the | |
767 | current buffer. | |
768 | ||
4b4eb083 CY |
769 | ** mairix.el is an interface to mairix, a free tool for indexing and |
770 | searching locally stored mail. It allows you to query mairix and | |
771 | display the search results with Rmail, Gnus and VM. Note that there | |
772 | is an existing Gnus back end, nnmairix.el, which should be used with | |
773 | Maildir/MH setups. | |
774 | ||
e94d0645 | 775 | ** minibuffer-depth-indicate-mode shows the minibuffer depth in the prompt. |
09e18d03 CY |
776 | |
777 | ** nXML Mode | |
778 | This is a new mode for editing XML documents. It allows a schema to | |
779 | be associated with the XML document being edited, using Relax NG as | |
780 | the schema language. The schema is used to provide two key features: | |
781 | ||
782 | *** Continuous validation. nXML validates as you type, highlighting | |
783 | any invalid parts of your document. | |
784 | ||
785 | *** Completion. nXML can assist you in entering an element name, | |
786 | attribute name or data value by using information about what is | |
787 | allowed by the schema in that context. | |
788 | ||
efdd80c6 DN |
789 | ** proced.el provides a Dired-like interface for operating on |
790 | processes. Proced makes an Emacs buffer containing a listing of the | |
791 | current processes. You can use the normal Emacs commands to move | |
792 | around in this buffer, and special Proced commands to operate on the | |
793 | processes listed. It is currently only functional on GNU/Linux, | |
794 | MS-Windows and Solaris. | |
09e18d03 CY |
795 | |
796 | ** Remember Mode is a mode for jotting down things to remember. | |
797 | Notes can be saved to a Diary file. For details, see the Remember | |
798 | Manual. | |
799 | ||
b1c3a827 | 800 | ** RST mode is a major mode for editing reStructuredText files. |
c2d0b538 | 801 | |
17a937cc CY |
802 | ** Ruby mode is a major mode for Ruby files. |
803 | ||
12f165e9 CY |
804 | ** Visual Line mode provides support for editing by visual lines. |
805 | It turns on word-wrapping in the current buffer, and rebinds C-a, C-e, | |
806 | and C-k to commands that operate by visual lines instead of logical | |
807 | lines. This is a more reliable replacement for longlines-mode. | |
697f6b43 CY |
808 | This can also be turned on using the menu bar, via |
809 | Options -> Line Wrapping in this Buffer -> Word Wrap | |
12f165e9 | 810 | |
0c68a24b MA |
811 | ** xesam.el is an implementation of Xesam, an interface to (desktop) |
812 | search engines like Beagle, Strigi, and Tracker. The Xesam API | |
813 | requires D-Bus for communication. | |
814 | ||
09e18d03 CY |
815 | ** zeroconf.el offers service discovery and service publishing |
816 | interfaces according to the zeroconf specification. It communicates | |
817 | with Avahi, a zeroconf implementation, via D-Bus messages on systems | |
818 | which have installed this software. | |
819 | ||
d332a7a4 GM |
820 | ** There is a new `whitespace' package. |
821 | (The pre-existing one has been renamed to `old-whitespace'.) | |
822 | Now, besides reporting bogus blanks, the whitespace package has a | |
823 | minor mode and a global minor mode to visualize blanks (TAB, (HARD) | |
824 | SPACE and NEWLINE). The visualization is made via faces and/or display | |
825 | table. It can also indicate lines that extend beyond a given column, | |
826 | trailing blanks, and empty lines at the start or end of a buffer. | |
827 | See `whitespace-style' for more details. The `whitespace-action' option | |
828 | specifies what to do when a buffer is visited, killed, or written. | |
4e5a8be9 | 829 | |
09e18d03 CY |
830 | \f |
831 | * Changes in Specialized Modes and Packages in Emacs 23.1 | |
832 | ||
833 | ** Abbrev has been rewritten in Elisp and extended with more flexibility. | |
16e82271 | 834 | |
e047f448 | 835 | *** New functions: abbrev-get, abbrev-put, abbrev-table-get, abbrev-table-put, |
a3709a8c | 836 | abbrev-table-p, abbrev-insert, abbrev-table-menu. |
16e82271 | 837 | |
e047f448 | 838 | *** Special hook `abbrev-expand-functions' obsoletes `pre-abbrev-expand-hook'. |
16e82271 | 839 | |
e047f448 SM |
840 | *** `make-abbrev-table', `define-abbrev', `define-abbrev-table' all take |
841 | extra arguments for arbitrary properties. | |
16e82271 | 842 | |
e047f448 | 843 | *** New variable `abbrev-minor-mode-table-alist'. |
16e82271 | 844 | |
e047f448 | 845 | *** `local-abbrev-table' can hold a list of abbrev-tables. |
16e82271 | 846 | |
e047f448 | 847 | *** Abbrevs have now the following special properties: |
79415279 | 848 | `:count', `:system', `:enable-function', `:case-fixed'. |
16e82271 | 849 | |
e047f448 SM |
850 | *** Abbrev-tables have now the following special properties: |
851 | `:parents', `:case-fixed', `:enable-function', `:regexp', | |
852 | `abbrev-table-modiff'. | |
853 | ||
09e18d03 | 854 | ** Apropos |
16e82271 | 855 | |
09e18d03 | 856 | *** `apropos-library' describes the elements defined in a given library. |
16e82271 | 857 | |
09e18d03 | 858 | *** Set `apropos-compact-layout' is you want a more compact (but wider) layout. |
0253fffa | 859 | |
09e18d03 | 860 | ** Archive Mode has basic support to browse Rar archives. |
dfa2fb2a CY |
861 | Note, however, that the free version of the unrar command only handles |
862 | versions 1 and 2 of the Rar format. | |
0253fffa | 863 | |
09e18d03 | 864 | ** BibTeX mode |
bafbec39 | 865 | |
09e18d03 | 866 | *** New command `bibtex-initialize' (re)initializes BibTeX buffers. |
bafbec39 | 867 | |
09e18d03 CY |
868 | *** New `bibtex-entry-format' options `whitespace', `braces', and |
869 | `string', disabled by default. | |
12bbb989 | 870 | |
09e18d03 CY |
871 | *** New variable `bibtex-cite-matcher-alist' contains rules to |
872 | identify cited keys in BibTeX entries, used by `bibtex-find-crossref'. | |
9097e8af | 873 | |
09e18d03 | 874 | *** Command `bibtex-url' allows multiple URLs per entry. |
4c24d241 | 875 | |
09e18d03 | 876 | ** Calendar and diary |
320bc739 | 877 | |
09e18d03 CY |
878 | *** There is a new date style, `iso', essentially year/month/day. |
879 | The variable `european-calendar-style' is obsolete - use `calendar-date-style'. | |
880 | Similarly, the commands `american-calendar' and `european-calendar' | |
881 | should be replaced by `calendar-set-date-style'. | |
c3bb6fdb | 882 | |
09e18d03 CY |
883 | *** The calendar namespace has been rationalized. |
884 | All functions and variables now begin with a `calendar-', `diary-', or | |
885 | `holiday-' prefix. The various calendar systems have secondary | |
886 | prefixes, eg `calendar-french-'. The old names you are likely to use | |
887 | directly still exist, for the time being, as aliases, but please start | |
888 | using the new names. | |
889 | ||
e889393b GM |
890 | *** The whitespace in the calendar layout can be customized. |
891 | See the variables: | |
892 | calendar-left-margin, calendar-intermonth-spacing, calendar-column-width, | |
893 | calendar-day-header-width, and calendar-day-digit-width. | |
894 | ||
895 | *** Text (e.g. ISO weeks) can be displayed between the calendar months. | |
896 | See the variables calendar-intermonth-header and calendar-intermonth-text. | |
897 | ||
09e18d03 CY |
898 | *** The function `holiday-chinese' computes holidays on the Chinese calendar. |
899 | It has been used to add items to the list `holiday-oriental-holidays'. | |
900 | ||
901 | *** `diary-remind' accepts a negative number -DAYS as a shorthand for | |
902 | the list (1 2 ... DAYS). | |
24cdde13 | 903 | |
a6b85944 CY |
904 | ** Change Log mode |
905 | ||
906 | *** The new command C-c C-f (change-log-find-file) finds the file | |
907 | associated with the current log entry. | |
908 | ||
909 | *** The new command C-c C-c (change-log-goto-source) goes to the | |
910 | source code associated with a log entry. | |
911 | ||
76be286d | 912 | ** Compile and grep modes |
16e82271 | 913 | |
76be286d DN |
914 | *** The mode-line entry for the *compilation* and *grep* buffer is color coded. |
915 | It has different colors for to show that: (a) the command is still | |
916 | running, (b) successful completion, (c) error. | |
16e82271 | 917 | |
76be286d | 918 | *** compilation-auto-jump-to-first-error tells `compile' to jump to |
813fb3fe | 919 | the first error encountered during compilations. |
16e82271 | 920 | |
194894cb CY |
921 | *** compilation-scroll-output accepts a new value, `first-error', which |
922 | says to stop auto scrolling at the first error that occurs. | |
16e82271 | 923 | |
0b22a5e1 | 924 | *** The `cc' alias for C++ files in `grep-file-aliases' has been |
2e538385 | 925 | improved. `hh' can be used to match C++ header files and `cchh' both |
0b22a5e1 DN |
926 | C++ sources and headers. |
927 | ||
d332a7a4 GM |
928 | ** Copyright |
929 | ||
930 | *** You can specify your copyright holders' names. | |
931 | Only copyright lines with holders matching `copyright-names-regexp' are | |
932 | considered for update. | |
933 | ||
934 | *** Copyrights can be at the end of the buffer. | |
935 | This is controlled by `copyright-at-end-flag' (used by, e.g., change-log-mode). | |
936 | ||
09e18d03 | 937 | ** Custom |
16e82271 | 938 | |
09e18d03 | 939 | *** defcustom accepts new keyword arguments, `:safe' and `:risky', which |
b68769f2 GM |
940 | set a variable's `safe-local-variable' and `risky-local-variable' property. |
941 | ||
09e18d03 | 942 | ** Diff mode |
16e82271 | 943 | |
09e18d03 CY |
944 | *** diff-refine-hunk highlights word-level details of changes in a diff hunk. |
945 | It's used automatically as you move through hunks, see | |
7381be9d | 946 | diff-auto-refine-mode. It is bound to `C-c C-b'. |
16e82271 | 947 | |
09e18d03 CY |
948 | *** diff-add-change-log-entries-other-window iterates through the diff |
949 | buffer and tries to create ChangeLog entries for each change. | |
950 | It is bound to `C-x 4 A'. | |
16e82271 | 951 | |
ac7020b3 DN |
952 | *** Turning on `whitespace-mode' in a diff buffer will show trailing |
953 | whitespace problems in the modified lines. | |
d332a7a4 | 954 | |
71554a21 | 955 | ** Dired |
16e82271 | 956 | |
71554a21 JL |
957 | *** In Dired, C-x C-q now runs the command wdired-change-to-wdired-mode, |
958 | and C-x C-q in wdired-mode exits it with asking a question about | |
959 | saving changes. | |
16e82271 | 960 | |
d1949cd5 JL |
961 | *** `&' runs the command `dired-do-async-shell-command' that executes |
962 | the command asynchronously without the need to manually add ampersand | |
963 | to the end of the command. Its output appears in the buffer `*Async Shell | |
964 | Command*'. | |
16e82271 | 965 | |
6d9f0d00 | 966 | *** `M-s f C-s' and `M-s f M-C-s' run Isearch that matches only at file names. |
2cb5f8ed JL |
967 | When a new user option `dired-isearch-filenames' is t, then even ordinary |
968 | Isearch started with `C-s' and `C-M-s' matches only at file names in the | |
969 | Dired buffer. When `dired-isearch-filenames' is `dwim' then activation of | |
970 | file name Isearch depends on the position of point - if point is on a file | |
971 | name initially, then Isearch matches only file names, otherwise it matches | |
972 | everywhere in the Dired buffer. You can toggle file names matching on or | |
973 | off by typing `M-s f' in Isearch mode. | |
16e82271 | 974 | |
cc3236e1 JL |
975 | *** `M-s a C-s' and `M-s a M-C-s' run multi-file Isearch on the marked files. |
976 | They visit the first marked file in the sequence and display the usual Isearch | |
977 | prompt for a string or a regexp where all Isearch commands are available. | |
16e82271 | 978 | |
71554a21 JL |
979 | *** `Q' in Dired provides two new keys for multi-file replacement. |
980 | The upper case key `Y' replaces all remaining matches in all remaining files | |
981 | with no more questions. The upper case key `N' stops doing replacements | |
982 | in the current file and skips to the next file. These multi-file keys | |
983 | are available for all commands that use `tags-query-replace' | |
984 | including `dired-do-query-replace-regexp', `vc-dir-query-replace-regexp', | |
985 | `reftex-query-replace-document'. | |
986 | ||
09e18d03 | 987 | ** Fortran |
16e82271 | 988 | |
77a00355 GM |
989 | *** The line length of fixed-form Fortran is not fixed at 72 any more. |
990 | Customize the variable `fortran-line-length' to change it. | |
117d3cc5 | 991 | |
09e18d03 CY |
992 | *** In Fortran mode, M-; is now bound to the standard comment-dwim, |
993 | rather than fortran-indent-comment. | |
76be286d | 994 | |
09e18d03 | 995 | *** (The increasingly misnamed) F90 mode supports Fortran 2003 syntax. |
b592c357 | 996 | |
09e18d03 | 997 | ** Gnus |
6653c6b7 | 998 | |
09e18d03 CY |
999 | *** The Gnus package has been updated |
1000 | There are many news features, bug fixes and improvements; see the file | |
1001 | GNUS-NEWS or the node "No Gnus" in the Gnus manual for details. | |
db86064f | 1002 | |
09e18d03 CY |
1003 | *** In Emacs 23, Gnus uses Emacs' new internal coding system `utf-8-emacs' for |
1004 | saving articles drafts and ~/.newsrc.eld. These file may not be read | |
1005 | correctly in Emacs 22 and below. If you want to Gnus across different Emacs | |
1006 | versions, you may set `mm-auto-save-coding-system' to `emacs-mule'. | |
15947a44 | 1007 | |
540f3092 | 1008 | *** Passwords are consistently loaded through `auth-source' |
6d496c76 TZ |
1009 | Gnus can use `auth-source' for POP and IMAP passwords. Also see that |
1010 | `smtpmail' and `url' support `auth-source' for SMTP and HTTP/HTTPS/RSS | |
1011 | authentication respectively. | |
1012 | ||
09e18d03 | 1013 | ** Help mode |
16e82271 | 1014 | |
09e18d03 CY |
1015 | *** New macro `with-help-window' should set up help windows better |
1016 | than `with-output-to-temp-buffer' with `print-help-return-message'. | |
8f5cee6a | 1017 | |
09e18d03 CY |
1018 | *** New option `help-window-select' permits to customize whether help |
1019 | window shall be automatically selected when invoking help. | |
8f5cee6a | 1020 | |
540f3092 GM |
1021 | *** New variable `help-window-point-marker' permits one to specify a new |
1022 | position for point in help window (for example in `view-lossage'). | |
15947a44 | 1023 | |
09e18d03 | 1024 | ** Isearch |
16e82271 | 1025 | |
4f75e082 JL |
1026 | *** New command `isearch-forward-word' bound globally to `M-s w' starts |
1027 | incremental word search. New command `isearch-toggle-word' bound to the | |
1028 | same key `M-s w' in Isearch mode toggles word searching on or off | |
1029 | while Isearch is active. | |
1030 | ||
1031 | *** New command `isearch-highlight-regexp' bound to `M-s h r' in Isearch | |
1032 | mode runs `highlight-regexp' (`hi-lock-face-buffer') with the current | |
1033 | search string as its regexp argument. The same key `M-s h r' and | |
1034 | other keys on the `M-s h' prefix are bound globally to the command | |
1035 | `highlight-regexp' and other hi-lock commands. | |
16e82271 | 1036 | |
4f75e082 JL |
1037 | *** New command `isearch-occur' bound to `M-s o' in Isearch mode |
1038 | runs `occur' with the current search string. The same key `M-s o' | |
1039 | is bound globally to the command `occur'. | |
16e82271 | 1040 | |
4f75e082 JL |
1041 | *** Isearch can now search through multiple ChangeLog files. |
1042 | When running Isearch in a ChangeLog file, if the search fails, | |
09e18d03 | 1043 | then another C-s tries searching the previous ChangeLog, |
540f3092 | 1044 | if there is one (e.g. going from ChangeLog to ChangeLog.12). |
babc4609 | 1045 | This is enabled if multi-isearch-search is non-nil. |
93a142e1 | 1046 | |
babc4609 | 1047 | *** Two new commands to start Isearch on a list of marked buffers |
cc3236e1 JL |
1048 | for buff-menu.el and ibuffer.el are bound to the keys `M-s a C-s' and |
1049 | `M-s a M-C-s'. | |
16e82271 | 1050 | |
3c241617 CY |
1051 | *** The part of an Isearch that failed to match is highlighted in |
1052 | `isearch-fail' face. | |
5d503af9 | 1053 | |
4f75e082 JL |
1054 | *** `C-h C-h' in Isearch mode displays isearch-specific Help screen, |
1055 | `C-h b' displays all Isearch key bindings, `C-h k' displays the full | |
1056 | documentation of the given Isearch key sequence, `C-h m' displays | |
1057 | documentation of Isearch mode. All the rest Help commands exit Isearch mode | |
09e18d03 | 1058 | and execute their global definitions. |
16e82271 | 1059 | |
09e18d03 CY |
1060 | *** When started in the minibuffer, Isearch searches in the minibuffer |
1061 | history. See `Minibuffer changes', above. | |
2793c9bb | 1062 | |
66863844 | 1063 | ** MH-E |
1e9b0fb2 | 1064 | |
d1d87851 | 1065 | *** Upgraded to MH-E version 8.2. See MH-E-NEWS for details. |
66863844 | 1066 | |
09e18d03 CY |
1067 | ** Python |
1068 | *** The file etc/emacs.py now supports both Python 2 and 3, meaning | |
1069 | that either version can be used as inferior Python by python.el. | |
c5578d5f | 1070 | |
09e18d03 CY |
1071 | *** Python mode now has `pdbtrack' functionality. When using pdb to |
1072 | debug a Python program, pdbtrack notices the pdb prompt and displays | |
1073 | the source file and line that the program is stopped at, much the same | |
1074 | way as gud-mode does for debugging C programs with gdb. | |
2793c9bb | 1075 | |
1e9b0fb2 MA |
1076 | ** Recentf |
1077 | ||
1078 | *** The default value of `recentf-keep' prevents from checking of | |
1079 | remote files, if there is no established connection to the | |
1080 | corresponding remote host. | |
1081 | ||
2d51ab64 GM |
1082 | ** Rmail |
1083 | ||
b55b134f | 1084 | *** Rmail no longer converts the messages to Babyl format. |
33b43245 GM |
1085 | Instead, it uses UNIX mbox format, both on disk and in Rmail buffers, |
1086 | and does conversion and decoding when a message is displayed. | |
b55b134f | 1087 | |
33b43245 | 1088 | The first time you visit an Rmail file in Babyl format, Rmail |
b55b134f EZ |
1089 | automatically converts it to mbox format. This is a one-time |
1090 | conversion, but it can take a few minutes, depending on how fast is | |
1091 | your machine and on the size of the file. You should find the rest of | |
1092 | Rmail usage unaltered. | |
1093 | ||
80d634b8 RS |
1094 | However, M-x set-rmail-inbox-list now lasts only for one session |
1095 | because there is no way to save the list of inbox files in an | |
1096 | mbox-format file. | |
1097 | ||
329a643c GM |
1098 | Also, whereas with Babyl format M-x find-file would switch to Rmail |
1099 | mode, with mbox format this is no longer the case (there being no way | |
bcf3f1f5 GM |
1100 | to add an "-*- rmail-*-" cookie to an mbox file). Use C-u M-x rmail |
1101 | instead. | |
329a643c | 1102 | |
33b43245 GM |
1103 | If you have written any extensions to Rmail, they are likely to need |
1104 | updating. Conceptually, the Rmail buffer that you see is no longer | |
1105 | just a narrowed portion of the whole. So you cannot access the whole | |
1106 | of a message (or message collection) by a simple save-restriction and | |
1107 | widen. Instead, there are two buffers: the rmail-buffer, and the | |
2e538385 | 1108 | rmail-view-buffer. The former is the buffer that you see, the latter |
33b43245 GM |
1109 | is invisible. Most of the time, the invisible `view' buffer contains |
1110 | the full contents of the Rmail file, and the Rmail buffer contains a | |
1111 | decoded copy of the current message (with only a subset of the | |
2e538385 | 1112 | headers). In this state, Rmail is said to be `swapped'. |
2d51ab64 | 1113 | |
33b43245 GM |
1114 | You may find the following functions useful: |
1115 | ||
1116 | `rmail-get-header' and `rmail-set-header' get or set the value of a | |
1117 | message header, whether or not it is currently visible. | |
1118 | ||
1119 | `rmail-apply-in-message' is a general purpose function that calls a | |
1120 | function (with arguments) which you specify on the full text of a given | |
1121 | message. To further narrow to just the headers, search forward for "\n\n". | |
1122 | ||
33b43245 | 1123 | *** The new command `rmail-mime' displays MIME messages. |
2e538385 | 1124 | It is bound to `v' in Rmail buffers and summaries. It displays plain |
33b43245 GM |
1125 | text and multipart messages in a temporary buffer, and offers buttons |
1126 | to save attachments. | |
1127 | ||
763e01c4 EZ |
1128 | *** The command `rmail-redecode-body' no longer accepts the optional arg RAW. |
1129 | Since Rmail now holds messages in their original undecoded form in a | |
1130 | separate buffer, `rmail-redecode-body' no longer encodes the original | |
1131 | message, and therefore there should be no need to avoid encoding it. | |
1132 | ||
80d634b8 RS |
1133 | *** The o command is now `rmail-output'. It is an all-purpose command |
1134 | for copying messages from Rmail and appending them to files. It | |
1135 | handles Babyl-format files as well as mbox-format files, and it | |
1136 | handles both kinds properly when they are visited in Emacs. It always | |
1137 | copies the full headers of the message. | |
1138 | ||
80d634b8 RS |
1139 | *** The C-o command is now `rmail-output-as-seen'. It uses |
1140 | the message as displayed, appending it to an mbox file. | |
1141 | ||
2e538385 GM |
1142 | *** The modified status of the Rmail buffer is reported in the mode-line. |
1143 | Previously, this information was hidden. | |
1144 | ||
9721264a | 1145 | ** TeX modes |
16e82271 | 1146 | |
9721264a MR |
1147 | *** New option latex-indent-within-escaped-parens |
1148 | permits to customize indentation of LaTeX environments delimited | |
1149 | by escaped parens. | |
1150 | ||
09e18d03 | 1151 | ** T-mouse Mode |
16e82271 | 1152 | |
09e18d03 CY |
1153 | *** If the gpm mouse server is running and t-mouse-mode is enabled, |
1154 | Emacs uses a Unix socket in a GNU/Linux console to talk to server, | |
1155 | rather than faking events using the client program mev. This C level | |
1156 | approach provides mouse highlighting and help echoing in the | |
1157 | minibuffer. | |
2793c9bb | 1158 | |
cc213f24 MA |
1159 | ** Tramp |
1160 | ||
1161 | *** New connection methods. | |
1162 | The new methods "plinkx", "plink2", "psftp", "sftp" and "fish" have | |
1163 | been introduced. There are also new so-called gateway methods | |
1164 | "tunnel" and "socks". | |
1165 | ||
cc2fc5a2 MA |
1166 | *** IPv6 addresses. |
1167 | IPv6 addresses are supported now as host names. They must be embedded | |
1168 | in square brackets, like in "/ssh:[::1]:". | |
1169 | ||
cc213f24 | 1170 | *** Multihop syntax has been removed. |
540f3092 | 1171 | The pseudo-method "multi" has been removed. Instead, multi hops |
cc213f24 MA |
1172 | can be specified by the new variable `tramp-default-proxies-alist'. |
1173 | ||
1174 | *** More default settings. | |
1175 | Default values can be set via the variables `tramp-default-user', | |
1176 | `tramp-default-user-alist' and `tramp-default-host'. | |
1177 | ||
1178 | *** Connection information is cached. | |
1179 | In order to reduce connection setup, information about used | |
540f3092 | 1180 | connections is kept persistently in a file. The name of this file is |
cc213f24 MA |
1181 | defined in the variable `tramp-persistency-file-name'. |
1182 | ||
1183 | *** Control of remote processes. | |
1184 | Running processes on a remote host can be controlled by settings in | |
1185 | `tramp-remote-path' and `tramp-remote-process-environment'. | |
1186 | ||
1187 | *** Success of remote copy is checked. | |
1188 | When the variable `file-precious-flag' is set, the success of a remote | |
1189 | file copy is checked via the file's checksum. | |
1190 | ||
7cba69f2 MA |
1191 | *** Passwords can be read from an authentification file. |
1192 | Tramp uses the package `auth-source' to read passwords from a file, if | |
1193 | necessary. | |
1194 | ||
289aee1c | 1195 | ** VC and related modes |
16e82271 | 1196 | |
09e18d03 CY |
1197 | *** VC now supports applying VC operations to a set of files at a time. |
1198 | This enables VC to work much more effectively with changeset-oriented | |
1199 | version-control systems such as Subversion, GNU Arch, Mercurial, Git | |
1200 | and Bzr. VC will now pass a multiple-file commit to these systems as | |
1201 | a single changeset. | |
16e82271 | 1202 | |
09e18d03 | 1203 | *** vc-dir is a new command that displays file names and their VC |
289aee1c DN |
1204 | status. It allows to apply various VC operations to a file, a |
1205 | directory or a set of files/directories. | |
16e82271 | 1206 | |
614677a0 GM |
1207 | *** VC switches are no longer appended, rather the first non-nil value is used. |
1208 | (This was for the most part true in Emacs 22, but was not advertised). | |
1209 | This is because there is an increasing variety of VC systems, and they | |
1210 | do not all accept the same "common" options. For example, a CVS diff | |
1211 | command used to append the values of `vc-cvs-diff-switches', | |
1212 | `vc-diff-switches', and `diff-switches'. Now the first non-nil value | |
1213 | from that sequence is used. The special value `t' means "no switches". | |
16e82271 | 1214 | |
09e18d03 | 1215 | *** Clicking on the VC mode-line entry now pops the VC menu. |
16e82271 | 1216 | |
09e18d03 | 1217 | *** The VC mode-line entry now has a tooltip that explains the VC file status. |
2b69181c DN |
1218 | |
1219 | *** In VC Annotate mode, the key bindings have changed to use lower | |
1220 | case keys instead of the upper case keys used in the past. | |
16e82271 | 1221 | |
09e18d03 CY |
1222 | *** In VC Annotate mode, for VC systems that support changesets, you can |
1223 | see the diff for the whole changeset (not only for the current file) | |
ee0f0556 CY |
1224 | by typing the D key. Using the "Show changeset diff of revision at |
1225 | line" menu entry does the same thing. | |
16e82271 | 1226 | |
e86fa02b | 1227 | *** In VC Annotate mode, you can type v to toggle the annotation visibility. |
16e82271 | 1228 | |
09e18d03 CY |
1229 | *** In VC Annotate mode, you can type f to show the file revision on |
1230 | the current line. | |
16e82271 | 1231 | |
09e18d03 CY |
1232 | *** Asynchronous VC commands display [Waiting...] in the mode-line |
1233 | of the corresponding buffer as long as the asynchronous process is | |
1234 | active. | |
16e82271 | 1235 | |
09e18d03 CY |
1236 | *** Log entries can be modified using the key "e" in log-view. |
1237 | For now only CVS, RCS, SCCS and SVN support this functionality. | |
1238 | This is done by the `modify-change-comment' backend function. | |
16e82271 | 1239 | |
09e18d03 CY |
1240 | *** In log-view-mode, for VC systems that support changesets, you can |
1241 | see the diff for the whole changeset (not only for the current file) | |
1242 | by typing the D key or using the "Changeset Diff" menu entry. | |
16e82271 | 1243 | |
289aee1c DN |
1244 | *** In Log Edit mode, C-c C-d now shows the diff for the files involved. |
1245 | ||
1246 | *** vc-git supports the "git grep" command. | |
16e82271 | 1247 | |
540f3092 | 1248 | *** VC Support for Meta-CVS has been removed for lack of a maintainer able |
09e18d03 | 1249 | to update it to the new VC. |
cf944fa4 | 1250 | |
d15f7b68 GM |
1251 | ** Miscellaneous |
1252 | ||
1253 | *** comint-mode uses `start-file-process' now (see Lisp Changes). | |
cc213f24 MA |
1254 | If `default-directory' is a remote file name, subprocesses are started |
1255 | on the corresponding remote system. | |
16e82271 | 1256 | |
09e18d03 CY |
1257 | *** Eldoc highlights the function argument under point |
1258 | with the face `eldoc-highlight-function-argument'. | |
16e82271 | 1259 | |
09e18d03 | 1260 | *** In Etags, the --members option is now the default. |
fffa137c | 1261 | Use --no-members if you want the old default behavior of not tagging |
09e18d03 | 1262 | struct members in C, members variables in C++ and variables in PHP. |
16e82271 | 1263 | |
09e18d03 CY |
1264 | *** The `gdb' command only works with the graphical interface now. |
1265 | Use `gud-gdb' if you want the (old) text command mode. | |
1266 | ||
1267 | *** goto-address.el provides two new minor modes, goto-address-mode and | |
1268 | goto-address-prog-mode, which buttonize URLS and email addresses. | |
1269 | ||
1270 | *** The new command `eshell/info' runs info in an eshell buffer. | |
3cf86f00 | 1271 | |
4d1e89e3 GM |
1272 | *** The new variable `ffap-rfc-directories' specifies a list of local |
1273 | directories in which `ffap-rfc' will first search for RFCs. | |
16e82271 | 1274 | |
09e18d03 CY |
1275 | *** hide-ifdef-mode allows shadowing ifdef-blocks instead of hiding them. |
1276 | See option `hide-ifdef-shadow' and function `hide-ifdef-toggle-shadowing'. | |
1277 | ||
1278 | *** `icomplete-prospects-height' now supercedes `icomplete-prospects-length'. | |
1279 | ||
1280 | *** Info displays breadcrumbs in the header of the page. | |
1281 | See Info-breadcrumbs-depth to control it. | |
1282 | ||
d2c98acc | 1283 | *** net-utils has an `iwconfig' command, similar to the existing `ifconfig'. |
b7bfcc8a | 1284 | It is used to configure wireless interfaces. |
d2c98acc | 1285 | |
09e18d03 CY |
1286 | *** The pcmpl-unix package supports hostname completion for ssh and scp. |
1287 | ||
1288 | *** sgml-electric-tag-pair-mode lets you simultaneously edit matched tag pairs. | |
1289 | ||
1290 | *** smerge-refine highlights word-level details of changes in conflict. | |
7381be9d TTN |
1291 | It's used automatically as you move through conflicts, see |
1292 | smerge-auto-refine-mode. | |
09e18d03 CY |
1293 | |
1294 | *** talk.el has been extended for multiple tty support. | |
1295 | ||
1296 | *** A new command `display-time-world' has been added to the Time | |
1297 | package. It creates a buffer with an updating time display using | |
1298 | several time zones. | |
1299 | ||
1300 | *** The appearance of superscript and subscript in TeX is more customizable. | |
1301 | See the documentation of the variables: tex-fontify-script, | |
1302 | tex-font-script-display, tex-suscript-height-ratio, and | |
1303 | tex-suscript-height-minimum. | |
1304 | ||
1305 | *** view-remove-frame-by-deleting is now by default t | |
1306 | since users found iconification of view-mode frames distracting. | |
16e82271 | 1307 | |
09e18d03 CY |
1308 | *** WoMan tries to add locale-specific manual page directories to the |
1309 | search path. This can be disabled by setting `woman-locale' to nil. | |
1310 | ||
0bfd685e GM |
1311 | \f |
1312 | * Changes in Emacs 23.1 on non-free operating systems | |
8ab314f9 | 1313 | |
203553fd JPW |
1314 | ** Case is now considered significant in completion on MS-Windows. |
1315 | The default value of `completion-ignore-case' is now nil on | |
1316 | MS-Windows, the same as it is for other operating systems. The | |
1317 | variable doesn't apply to reading a file name -- in that case Emacs | |
1318 | heeds `read-file-name-completion-ignore-case' instead. | |
1319 | ||
672f99b6 JR |
1320 | ** IPv6 is supported on MS-Windows. |
1321 | Emacs now supports IPv6 on Windows XP and later, and earlier versions | |
2660a9da | 1322 | of Windows with third party IPv6 stacks installed. In Emacs 22, IPv6 was |
672f99b6 JR |
1323 | supported on other platforms, but not on Windows due to using the winsock |
1324 | 1.1 header file, even though Emacs was linking to the winsock 2 library. | |
1325 | ||
6e344060 JR |
1326 | ** Busy cursor (hourglass) now displays on MS-Windows. |
1327 | When Emacs is busy, an hourglass mouse cursor is displayed on Windows. | |
2660a9da JR |
1328 | In Emacs 22 only X supported the busy cursor. |
1329 | ||
2660a9da JR |
1330 | ** Battery status is available on MS-Windows |
1331 | Emacs can now display the battery status in the mode-line when enabled with | |
1332 | display-battery-mode or from the Options menu. More verbose battery | |
1333 | information is also available with the command `battery'. In Emacs 22 | |
1334 | battery status was supported only on GNU/Linux and Mac. | |
6e344060 | 1335 | |
3280c5c5 JR |
1336 | ** More keys available on MS-Windows. |
1337 | Keys normally associated with IMEs, and some exotic keys not normally found | |
1338 | on standard keyboards have been given names so they can be bound to functions | |
1339 | inside Emacs. If there are keys on your keyboard that have not been exposed | |
1340 | to Emacs in the past, try C-h k to see if they are available now. | |
1341 | ||
1342 | Emacs can now bind functions to the extra buttons for media player and | |
1343 | browser control present on some keyboards. These buttons are disabled | |
1344 | by default, since enabling them prevents their system-wide use when | |
1345 | Emacs has focus. To enable them, set the variable | |
0caa490b | 1346 | w32-pass-multimedia-buttons to nil. See the doc string of that variable |
3280c5c5 | 1347 | for the list of extra keys that are available. |
2660a9da | 1348 | |
4a263588 | 1349 | ** BDF fonts no longer supported on MS-Windows. |
2e538385 | 1350 | The font backend was completely rewritten for this release. The focus |
4a263588 JR |
1351 | on Windows has been getting acceptable performance and full unicode |
1352 | support, including complex script shaping for native Windows fonts. A | |
1353 | rewrite of the BDF font support has not happened due to lack of time | |
1354 | and developers. If demand still exists for such a backend even with | |
1355 | the improved language support for native Windows fonts, future | |
1356 | development in this direction will most likely be based on the | |
1357 | freetype library, giving access to a wider range of font formats. | |
1358 | ||
0bfd685e GM |
1359 | \f |
1360 | * Incompatible Lisp Changes in Emacs 23.1 | |
8ec65cd7 | 1361 | |
fd9440c5 | 1362 | ** Variables cannot be both buffer-local and frame-local any more. |
a9b08254 | 1363 | |
fc944cd4 | 1364 | ** `functionp' returns nil for special forms. |
65f81a0b | 1365 | I.e., it only returns t for objects that can be passed to `funcall'. |
fc944cd4 | 1366 | |
d82c3d44 GM |
1367 | ** The behavior of map-char-table has changed. It may call the |
1368 | specified function with a cons (FROM . TO) as a key if characters in | |
1369 | that range have the same value. | |
1370 | ||
b350bdf2 | 1371 | ** Process changes |
16e82271 | 1372 | |
b350bdf2 | 1373 | *** The function `dired-call-process' has been removed. |
16e82271 | 1374 | |
b350bdf2 CY |
1375 | *** The multibyteness of process filters is now determined by the |
1376 | coding-system used for decoding. The functions | |
1377 | `process-filter-multibyte-p' and `set-process-filter-multibyte' are | |
1378 | obsolete. | |
03605a28 | 1379 | |
777ea444 | 1380 | ** The variable `byte-compile-warnings' can now be a list starting with `not', |
0caa490b | 1381 | meaning to disable the specified warnings. The meaning of this list |
777ea444 | 1382 | may therefore be the reverse of what you expect (of course, this is |
0caa490b | 1383 | only an issue if you make use of the new `not' syntax). Rather than |
777ea444 GM |
1384 | checking/manipulating elements directly, use the new functions |
1385 | `byte-compile-warning-enabled-p', `byte-compile-disable-warning', and | |
1386 | `byte-compile-enable-warning.' | |
1387 | ||
69df9d6d GM |
1388 | ** `mode-name' is no longer guaranteed to be a string. |
1389 | Use `(format-mode-line mode-name)' to ensure a string value. | |
1390 | ||
53ed745a CY |
1391 | ** The function x-font-family-list has been removed. |
1392 | Use the new function font-family-list (see Lisp Changes, below). | |
1393 | ||
b350bdf2 CY |
1394 | ** Internationalization changes |
1395 | ||
1396 | *** The value of the function `charset-id' is now always 0. | |
16e82271 | 1397 | |
b350bdf2 CY |
1398 | *** The functions `register-char-codings' and `coding-system-spec' |
1399 | have been removed. | |
16e82271 | 1400 | |
b350bdf2 CY |
1401 | *** The cpXXX coding systems are now supported automatically. |
1402 | The functions cp-...-codepage, which you had to use in Emacs 22 to | |
1403 | enable support for these coding systems, have been deleted. | |
16e82271 | 1404 | |
b350bdf2 | 1405 | *** The following features have been removed. They were used for |
85a1f98d GM |
1406 | displaying various scripts with specific fonts, and are no longer |
1407 | needed now that OpenType font support is available: | |
1408 | ||
b350bdf2 | 1409 | **** `devanagari' and `devan-util', and all associated devanagari-* and |
85a1f98d GM |
1410 | dev-* functions and variables (formerly used for Devanagari script). |
1411 | ||
b350bdf2 | 1412 | **** `kannada' and `knd-util', and all associated kannada-* and knd-* |
85a1f98d GM |
1413 | functions and variables (formerly used for Kannada script). |
1414 | ||
b350bdf2 | 1415 | **** `malayalam' and `mlm-util', and all associated malayalam-* and |
85a1f98d GM |
1416 | mlm-* functions and variables (formerly used for Malayalam script). |
1417 | ||
b350bdf2 | 1418 | **** `tamil' and `tml-util, and all associated tamil-* and tml-* |
85a1f98d | 1419 | functions and variables (formerly used for Tamil script). |
6a6b4d7d | 1420 | |
2d2db320 KH |
1421 | *** The meaning of NAME argument of `set-fontset-font' is changed. |
1422 | Previously nil is accepted as the default fontset. Now, nil is for | |
1423 | the fontset of the selected frame and t is for the default fontset. | |
1424 | ||
1425 | *** The meaning of FONTSET argument of `print-fontset' is changed. | |
1426 | Now, nil is for the fontset of the selected frame and t is for the | |
1427 | default fontset. | |
1428 | ||
16e82271 CY |
1429 | ** If a function in write-region-annotate-functions returns with a |
1430 | different buffer current, Emacs no longer kills that buffer | |
1431 | automatically. This behavior existed in previous versions of Emacs, | |
1432 | but was undocumented. To kill a buffer after write-region, give the | |
1433 | variable `write-region-post-annotation-function' a buffer-local value | |
1434 | of `kill-buffer'. | |
1435 | ||
55504ada | 1436 | ** The variable temp-file-name-pattern has been removed. |
f4150f61 CY |
1437 | This variable was only used by call-process-region, which now uses |
1438 | temporary-file-directory instead. | |
1439 | ||
52456e59 CY |
1440 | ** The COUNT and SYSTEM-FLAG arguments to define-abbrev have been |
1441 | removed. The function now takes extra arguments for specifying | |
1442 | arbitrary abbrev properties. | |
1443 | ||
7841339b AM |
1444 | ** end-of-defun-function is now guaranteed to work only when called |
1445 | from the start of a defun. It must now leave point exactly at the end | |
1446 | of defun, since `end-of-defun' now itself moves forward over | |
1447 | whitespace after calling it. | |
1448 | ||
0bfd685e GM |
1449 | \f |
1450 | * Lisp Changes in Emacs 23.1 | |
8ab314f9 | 1451 | |
b8afe7e4 EZ |
1452 | ** The new variable `generate-autoload-cookie' controls the magic comment |
1453 | string used by `update-file-autoloads' to find autoloaded forms. The | |
1454 | variable `generated-autoload-file' similarly controls the name of the | |
1455 | file where `update-file-autoloads' writes the calls to `autoload'. | |
1456 | The default values are ";;;###autoload" and `loaddefs.el', | |
1457 | respectively. | |
1458 | ||
a20878b6 | 1459 | ** New primitives `list-system-processes' and `process-attributes' |
5d692341 EZ |
1460 | let Lisp programs access the processes that are running on the local |
1461 | machine. See the doc strings of these functions for more details. | |
1462 | Not all platforms support accessing this information; on those that | |
1463 | don't, these primitives will return nil. | |
1464 | ||
b350bdf2 CY |
1465 | ** New variable `user-emacs-directory'. |
1466 | Use this instead of "~/.emacs.d". | |
43f8b275 | 1467 | |
b350bdf2 CY |
1468 | ** If a local hook function has a non-nil `permanent-local-hook' |
1469 | property, `kill-all-local-variables' does not remove it from the local | |
1470 | value of the hook variable; it remains even if you change major modes. | |
09e18d03 | 1471 | |
b350bdf2 CY |
1472 | ** `frame-inherited-parameters' lets new frames inherit parameters from |
1473 | the selected frame. | |
09e18d03 | 1474 | |
b350bdf2 CY |
1475 | ** New keymap `input-decode-map' overrides like key-translation-map, but |
1476 | applies before function-key-map. Also it is terminal-local contrary to | |
1477 | key-translation-map. Terminal-specific key-sequences are generally added to | |
1478 | this map rather than to function-key-map now. | |
09e18d03 | 1479 | |
b350bdf2 | 1480 | ** `ignore-errors' is now a standard macro (does not require the CL package). |
09e18d03 | 1481 | |
b350bdf2 CY |
1482 | ** `interprogram-paste-function' can now return one string or a list |
1483 | of strings. In the latter case, Emacs puts the second and following | |
1484 | strings on the kill ring. | |
09e18d03 | 1485 | |
b350bdf2 CY |
1486 | ** In `condition-case', a handler can specify "let the debugger run first". |
1487 | You do this by writing `debug' in the list of conditions to be handled, | |
1488 | like this: | |
09e18d03 | 1489 | |
b350bdf2 CY |
1490 | (condition-case nil |
1491 | (foo bar) | |
1492 | ((debug error) nil)) | |
09e18d03 | 1493 | |
b350bdf2 | 1494 | ** clone-indirect-buffer now runs the clone-indirect-buffer-hook. |
09e18d03 | 1495 | |
7841339b AM |
1496 | ** `beginning-of-defun-function' now takes one argument, the count given to |
1497 | `beginning-of-defun'. (N.B. `end-of-defun-function' doesn't take any | |
1498 | arguments.) | |
09e18d03 | 1499 | |
b350bdf2 CY |
1500 | ** `file-remote-p' has new optional parameters IDENTIFICATION and CONNECTED. |
1501 | IDENTIFICATION specifies which part of the remote identifier has to be | |
1502 | returned. With CONNECTED passed non-nil, it is checked whether a | |
1503 | remote connection has been established already. | |
09e18d03 | 1504 | |
b350bdf2 CY |
1505 | ** The new macro `declare-function' suppresses compiler warnings about |
1506 | undefined functions. | |
a1562258 | 1507 | |
b350bdf2 | 1508 | ** Changes to interactive function handling |
8ba31f36 | 1509 | |
b350bdf2 CY |
1510 | *** The new interactive spec code ^ says to first call |
1511 | handle-shift-selection if shift-select-mode is non-nil, before reading | |
1512 | the command arguments. This is used for shift-selection (see above). | |
e2947429 | 1513 | |
b350bdf2 CY |
1514 | *** Built-in functions can now have an interactive specification that |
1515 | is not a prompt string. If the `intspec' parameter of a `DEFUN' | |
1516 | starts with a `(', the string is evaluated as a Lisp form. | |
e2947429 | 1517 | |
b350bdf2 CY |
1518 | *** The interactive-form of a function can be added post-facto via the |
1519 | `interactive-form' symbol property. Mostly useful to add complex | |
1520 | interactive forms to subroutines. | |
d87be1df | 1521 | |
b350bdf2 | 1522 | ** Region changes |
3ae459e5 | 1523 | |
b350bdf2 CY |
1524 | *** Commands should use `use-region-p' to test whether there is |
1525 | an active region that they should operate on. | |
3ae459e5 | 1526 | |
b350bdf2 | 1527 | *** `region-active-p' returns non-nil when Transient Mark mode is |
71b605b8 CY |
1528 | enabled and the mark is active. Most commands that act specially on |
1529 | the active region in Transient Mark mode should use `use-region-p' | |
1530 | instead of `region-active-p', because `use-region-p' obeys the new | |
1531 | user option `use-empty-active-region' (see Editing Changes, above). | |
58555d81 | 1532 | |
b350bdf2 CY |
1533 | *** If a command sets `transient-mark-mode' to (only . OLDVAL), that |
1534 | means to activate transient-mark-mode temporarily, until the next | |
1535 | unshifted point motion command or mark deactivation. Afterwards, | |
1536 | reset transient-mark-mode to the value OLDVAL. The values `only' and | |
1537 | `identity', introduced in Emacs 22, are now deprecated. | |
e5c4079c | 1538 | |
b350bdf2 | 1539 | ** Emacs session information |
13cda5f9 | 1540 | |
b350bdf2 CY |
1541 | *** The new variables `before-init-time' and `after-init-time' record the |
1542 | value of `current-time' before and after Emacs loads the init files. | |
a2bc5bdd | 1543 | |
b350bdf2 | 1544 | *** The new function `emacs-uptime' returns the uptime of an Emacs instance. |
d82c3d44 | 1545 | |
b350bdf2 CY |
1546 | *** The new function `emacs-init-time' returns the duration of the |
1547 | Emacs initialization. | |
50bfa18a | 1548 | |
b350bdf2 | 1549 | ** Changes affecting display-buffer |
16e82271 | 1550 | |
abe8f306 MR |
1551 | *** display-buffer tries to be smarter when splitting windows. |
1552 | The new option split-window-preferred-function lets you specify your own | |
1553 | function to pop up new windows. Its default value split-window-sensibly | |
1554 | can split a window either vertically or horizontally, whichever seems | |
1555 | more suitable in the current configuration. You can tune the behavior | |
1556 | of split-window-sensibly by customizing split-height-threshold and the | |
1557 | new option split-width-threshold. Both options now take the value nil | |
1558 | to inhibit splitting in one direction. Setting split-width-threshold to | |
1559 | nil inhibits horizontal splitting and gets you the behavior of Emacs 22 | |
1560 | in this respect. In any case, display-buffer may now split the largest | |
1561 | window vertically even when it is not as wide as the containing frame. | |
2d105adf | 1562 | |
f691c216 CY |
1563 | *** If pop-up-frames has the value `graphic-only', display-buffer only |
1564 | makes a separate frame on graphic displays. | |
1565 | ||
abe8f306 | 1566 | *** select-frame and set-frame-selected-window have a new optional |
ee434cb1 MR |
1567 | argument NORECORD. If non-nil, this will avoid messing with the order |
1568 | of recently selected windows and the buffer list. | |
205f3a3b | 1569 | |
781459a4 CY |
1570 | ** Window parameters can now be defined. |
1571 | These are analogous to frame parameters, but are associated with | |
1572 | individual windows. | |
16e82271 | 1573 | |
781459a4 CY |
1574 | *** The new functions window-parameters, window-parameter, and |
1575 | set-window-parameter are used to query and set window parameters. | |
1576 | ||
b350bdf2 | 1577 | ** Minibuffer and completion changes |
16e82271 | 1578 | |
b350bdf2 | 1579 | *** A list of default values can be specified for the DEFAULT argument of |
b9694062 JL |
1580 | functions `read-from-minibuffer', `read-string', `read-command', |
1581 | `read-variable', `read-buffer', `completing-read'. Elements of this list | |
1582 | are available for inserting into the minibuffer by typing `M-n'. | |
1583 | For empty input these functions return the first element of this list. | |
1584 | ||
90993beb | 1585 | *** New function `read-regexp' uses the regexp history and some useful |
4f75e082 | 1586 | regexp defaults (string at point, last Isearch/replacement regexp/string) |
90993beb JL |
1587 | via M-n when reading a regexp in the minibuffer. |
1588 | ||
b350bdf2 CY |
1589 | *** minibuffer-local-must-match-filename-map is now named |
1590 | minibuffer-local-filename-must-match-map. | |
66dc1ca2 | 1591 | |
206faa92 CY |
1592 | *** The `require-match' argument to `completing-read' accepts the new |
1593 | values `confirm-only' and `confirm-after-completion'. | |
d03b9b31 | 1594 | |
b350bdf2 | 1595 | ** Search and replacement changes |
16e82271 | 1596 | |
b350bdf2 | 1597 | *** The regexp form \(?<num>:<regexp>\) specifies the group number explicitly. |
16e82271 | 1598 | |
b350bdf2 CY |
1599 | *** New function `match-substitute-replacement' returns the result of |
1600 | `replace-match' without actually using it in the buffer. | |
c60d543d | 1601 | |
b350bdf2 | 1602 | *** The new variable `replace-search-function' determines the function |
80120f13 EZ |
1603 | to use for searching in query-replace and replace-string. The |
1604 | function it specifies is called by `perform-replace' when its 4th | |
1605 | argument is nil. | |
3ae459e5 | 1606 | |
b350bdf2 CY |
1607 | *** The new variable `replace-re-search-function' determines the |
1608 | function to use for searching in `query-replace-regexp', | |
1609 | `replace-regexp', `query-replace-regexp-eval', and | |
80120f13 EZ |
1610 | `map-query-replace-regexp'. The function it specifies is called by |
1611 | `perform-replace' when its 4th argument is non-nil. | |
4f4a84ec | 1612 | |
4f75e082 JL |
1613 | *** New keymap `search-map' bound to `M-s' provides global bindings |
1614 | for search related commands. | |
1615 | ||
1616 | *** New keymap `multi-query-replace-map' contains additonal keys bound | |
71554a21 JL |
1617 | to `automatic-all' and `exit-current' for multi-buffer interactive replacement. |
1618 | ||
b350bdf2 CY |
1619 | *** The variable `inhibit-changing-match-data', if non-nil, prevents |
1620 | the search and match primitives from changing the match data. | |
967b2682 | 1621 | |
3c241617 CY |
1622 | *** New functions `word-search-forward-lax' and `word-search-backward-lax'. |
1623 | These are like `word-search-forward and `word-search-backward', except | |
1624 | that the end of the search string need not match a word boundary, | |
1625 | unless it ends in whitespace. | |
1626 | ||
b350bdf2 | 1627 | ** File handling changes |
8bf5c8a6 | 1628 | |
b350bdf2 CY |
1629 | *** set-file-modes is now interactive and can take the mode value in |
1630 | symbolic notation thanks to auxiliary functions. | |
16e82271 | 1631 | |
291703b5 EZ |
1632 | *** file-local-variables-alist stores an alist of file-local |
1633 | variables defined in the current buffer. | |
1634 | ||
d59f7c45 | 1635 | ** Face-remapping |
16e82271 | 1636 | |
d59f7c45 CY |
1637 | *** Each face can be remapped to a different face definition using the |
1638 | variable `face-remapping-alist'. This is an alist that maps faces to | |
1639 | replacement definitions (which can be face names, lists of face names, | |
1640 | or attribute/value plists. If this variable is buffer-local, the | |
1641 | remapping occurs only in that buffer. | |
1642 | ||
1643 | *** text-scale-mode remaps the default face to a larger or smaller | |
2e538385 | 1644 | size in the current buffer. This feature is used by the Buffer Face |
d59f7c45 CY |
1645 | menu and the new `C-x C-+', `C-x C--', and `C-x C-0' commands (see |
1646 | Editing Changes, above). | |
1647 | ||
1648 | *** New functions: | |
16e82271 | 1649 | |
d59f7c45 CY |
1650 | **** `face-remap-add-relative' adds a face remapping entry to the |
1651 | current buffer. | |
16e82271 | 1652 | |
d59f7c45 CY |
1653 | **** ``face-remap-remove-relative' removes a face remapping entry from |
1654 | the current buffer. | |
16e82271 | 1655 | |
d59f7c45 | 1656 | **** `face-remap-reset-base' restores a face to its global definition. |
16e82271 | 1657 | |
d59f7c45 CY |
1658 | **** `face-remap-set-base' sets the base remapping of a face. |
1659 | ||
85c78c0f | 1660 | ** Process changes |
16e82271 | 1661 | |
b350bdf2 CY |
1662 | *** The new function `start-file-process' is similar to `start-process', |
1663 | but obeys file handlers. The file handler is chosen based on | |
1664 | `default-directory'. The functions `start-file-process-shell-command' | |
1665 | and `process-file-shell-command' are also new; they call internally | |
1666 | `start-file-process' and `process-file', respectively. | |
1667 | ||
1668 | *** The new function `process-lines' executes an external program and | |
1669 | returns its output as a list of lines. | |
63571b5a | 1670 | |
d82c3d44 GM |
1671 | ** Character code, representation, and charset changes. |
1672 | ||
16e82271 CY |
1673 | *** In multibyte buffers and strings, characters are represented by |
1674 | UTF-8 byte sequences. The character code space is now 0x0..0x3FFFFF | |
1675 | with no gap; code points 0x0..0x10FFFF are Unicode characters of the | |
1676 | same code points, while code points 0x3FFF80..0x3FFFFF are raw 8-bit | |
1677 | bytes. | |
d82c3d44 | 1678 | |
16e82271 | 1679 | *** Generic characters no longer exist. |
d82c3d44 | 1680 | |
16e82271 CY |
1681 | *** The concept of a charset has changed. A single character may |
1682 | belong to multiple charsets (e.g. a-grave, U+00E0, belongs to charsets | |
b350bdf2 | 1683 | unicode, iso-8859-1, iso-8859-3, etc). |
d82c3d44 | 1684 | |
16e82271 CY |
1685 | **** The dimension of a charset is now 1, 2, 3, or 4, and the size of |
1686 | each dimension is no longer limited to 94 or 96. | |
1687 | ||
1688 | **** A dynamic charset priority list is used to infer the charset of | |
1689 | characters for display. | |
1690 | ||
c9a1876d EZ |
1691 | *** The functions `split-char' and `make-char' now accept up to 4 |
1692 | positional codes instead of just 2. | |
1693 | ||
d82c3d44 GM |
1694 | *** The functions `encode-char' and `decode-char' now accept any character sets. |
1695 | ||
1696 | *** The function `define-charset' now accepts a completely different | |
1697 | form of arguments (old-style arguments still work). | |
1698 | ||
d82c3d44 GM |
1699 | *** The value of the function `char-charset' depends on the current |
1700 | priorities of charsets. | |
1701 | ||
d82c3d44 GM |
1702 | *** The function get-char-code-property now accepts many Unicode base |
1703 | character properties. They are `name', `general-category', | |
1704 | `canonical-combining-class', `bidi-class', `decomposition', | |
1705 | `decimal-digit-value', `digit-value', `numeric-value', `mirrored', | |
1706 | `old-name', `iso-10646-comment', `uppercase', `lowercase', and | |
1707 | `titlecase'. | |
1708 | ||
b350bdf2 CY |
1709 | *** The functions `modify-syntax-entry' and `modify-category-entry' now |
1710 | accept a cons of characters as the first argument, and modify all | |
1711 | entries in that range of characters. | |
d82c3d44 | 1712 | |
8434d0b8 EZ |
1713 | *** Use of `translation-table-for-input' for character code unification |
1714 | is now obsolete, since Emacs 23.1 and later uses Unicode as basis for | |
1715 | internal representation of characters. | |
d82c3d44 | 1716 | |
b350bdf2 | 1717 | *** New functions: |
d82c3d44 | 1718 | |
b350bdf2 CY |
1719 | **** `characterp' returns t if and only if the argument is a character. |
1720 | This replaces `char-valid-p', which is now obsolete. | |
d82c3d44 | 1721 | |
b350bdf2 | 1722 | **** `max-char' returns the maximum character code (currently #x3FFFFF). |
d82c3d44 | 1723 | |
b350bdf2 CY |
1724 | **** `define-charset-alias' defines an alias of a charset. |
1725 | ||
1726 | **** `set-charset-priority' sets priorities of charsets. | |
1727 | ||
1728 | **** `charset-priority-list' returns a prioritized list of charsets. | |
1729 | ||
1730 | **** `unibyte-string' makes a unibyte string from bytes. | |
1731 | ||
1732 | **** `define-char-code-property' defines a character code property. | |
1733 | ||
1734 | **** `char-code-property-description' returns the description string of | |
1735 | a character code property. | |
1736 | ||
1737 | *** New variables: | |
1738 | ||
1739 | **** `find-word-boundary-function-table' is a char-table of functions to | |
1740 | search for a word boundary. | |
1741 | ||
1742 | **** `char-script-table' is a char-table of script names. | |
1743 | ||
1744 | **** `char-width-table' is a char-table of character widths. | |
1745 | ||
1746 | **** `print-charset-text-property' controls how to handle `charset' text | |
1747 | property on printing a string. | |
1748 | ||
1749 | **** `printable-chars' is a char-table of printable characters. | |
d82c3d44 | 1750 | |
505d8756 | 1751 | ** Code conversion changes |
d82c3d44 GM |
1752 | |
1753 | *** The new function `define-coding-system' should be used to define a | |
1754 | coding system instead of `make-coding-system' (which is now obsolete). | |
1755 | ||
1756 | *** The functions `encode-coding-region' and `decode-coding-region' | |
1757 | have an optional 4th argument to specify where the result of | |
1758 | conversion should go. | |
1759 | ||
1760 | *** The functions `encode-coding-string' and `decode-coding-string' | |
1761 | have an optional 4th argument specifying a buffer to store the result | |
1762 | of conversion. | |
1763 | ||
b0caa7fb EZ |
1764 | *** The new variable `inhibit-null-byte-detection' controls whether to |
1765 | consider text with null bytes as binary data. By default, it is | |
1766 | `nil', and Emacs uses `no-conversion' for any text containing null | |
1767 | bytes. | |
1768 | ||
b350bdf2 | 1769 | *** The functions `set-coding-priority' and `make-coding-system' are obsolete. |
d82c3d44 | 1770 | |
b350bdf2 | 1771 | *** New functions: |
d82c3d44 | 1772 | |
b350bdf2 CY |
1773 | **** `with-coding-priority' executes Lisp code using the specified |
1774 | coding system priority order. | |
d82c3d44 | 1775 | |
b350bdf2 CY |
1776 | **** `check-coding-systems-region' checks if the text in the region is |
1777 | encodable by the specified coding systems. | |
d82c3d44 | 1778 | |
b350bdf2 | 1779 | **** `coding-system-aliases' returns a list of aliases of a coding system. |
d82c3d44 | 1780 | |
b350bdf2 CY |
1781 | **** `coding-system-charset-list' returns a list of charsets supported |
1782 | by a coding system. | |
d82c3d44 | 1783 | |
b350bdf2 CY |
1784 | **** `coding-system-priority-list' returns a list of coding systems |
1785 | ordered by their priorities. | |
1786 | ||
1787 | **** `set-coding-system-priority' sets priorities of coding systems. | |
d82c3d44 | 1788 | |
f4017dc5 KH |
1789 | **** `coding-system-from-name' returns a coding system matching with |
1790 | the argument name. | |
1791 | ||
1792 | ||
d82c3d44 | 1793 | ** There is a new input method, Robin, different from Quail. |
0caa490b | 1794 | It has three functionalities: |
d82c3d44 GM |
1795 | i) a simple input method (converts an ASCII sequence into a string). |
1796 | ii) converts an existing buffer substring into another string | |
1797 | iii) reverse conversion (each character produced by a | |
1798 | robin rule can hold the original ASCII sequence as a char-code-property) | |
1799 | ||
1800 | *** The new function `robin-define-package' defines a Robin package. | |
1801 | ||
1802 | *** The new function `robin-modify-package' modifies an existing Robin package. | |
1803 | ||
1804 | *** The new function `robin-use-package' starts using a Robin package | |
1805 | as an input method. | |
1806 | ||
888d7d86 KH |
1807 | *** The new function `string-to-unibyte' is like `string-as-unibyte' |
1808 | but signals an error if STRING contains a non-ASCII, non-eight-bit | |
1809 | character. | |
1810 | ||
505d8756 | 1811 | ** Changes related to the new font backend |
16e82271 | 1812 | |
0c1e3f0d CY |
1813 | *** Which font backends to use can be specified by the X resource |
1814 | "FontBackend". For instance, to use both X core fonts and Xft fonts: | |
2b7a2553 | 1815 | |
b19aa6dd | 1816 | Emacs.FontBackend: x,xft |
2b7a2553 | 1817 | |
b19aa6dd GM |
1818 | If this resource is not set, Emacs tries to use all font backends |
1819 | available on your graphic device. | |
16e82271 | 1820 | |
d82c3d44 GM |
1821 | *** New frame parameter `font-backend' specifies a list of |
1822 | font-backends supported by the frame's graphic device. On X, they are | |
1823 | currently `x' and `xft'. | |
1824 | ||
b350bdf2 CY |
1825 | *** The function `set-fontset-font' now accepts a script name as the |
1826 | second argument, and has an optional 5th argument to control how to | |
1827 | set the font. | |
bd9d28f7 | 1828 | |
b350bdf2 | 1829 | *** New functions: |
16e82271 | 1830 | |
b350bdf2 | 1831 | **** `fontp' checks if the argument is a font-spec or font-entity. |
16e82271 | 1832 | |
b350bdf2 | 1833 | **** `font-spec' creates a new font-spec object. |
16e82271 | 1834 | |
b350bdf2 | 1835 | **** `font-get' returns a font property value. |
16e82271 | 1836 | |
b350bdf2 | 1837 | **** `font-put' sets a font property value. |
16e82271 | 1838 | |
b350bdf2 | 1839 | **** `font-face-attributes' returns a plist of face attributes set by a font. |
16e82271 | 1840 | |
b350bdf2 | 1841 | **** `list-fonts' returns a list of font-entities matching a font spec. |
16e82271 | 1842 | |
543e6d09 | 1843 | **** `find-font' returns the font-entity best matching the given font spec. |
16e82271 | 1844 | |
ae525471 | 1845 | **** `font-family-list' returns a list of family names of available fonts. |
16e82271 | 1846 | |
b350bdf2 CY |
1847 | **** `font-xlfd-name' returns an XLFD name of a given font spec, font |
1848 | entity, or font object. | |
16e82271 | 1849 | |
b350bdf2 | 1850 | **** `clear-font-cache' clears all font caches. |
d82c3d44 | 1851 | |
b350bdf2 | 1852 | ** Changes related to multiple-terminal (multi-tty) support |
24cdde13 | 1853 | |
b12f6e85 SM |
1854 | *** $TERM is now set to `dumb' for subprocesses. If you want to know the |
1855 | $TERM inherited by Emacs you will have to look inside initial-environment. | |
1856 | ||
6168122d SM |
1857 | *** $DISPLAY is now dynamically inherited from the frame's `display'. |
1858 | ||
b350bdf2 | 1859 | *** The `window-system' variable is now frame-local. The new |
24cdde13 | 1860 | `initial-window-system' variable contains the `window-system' value |
bbe3eb99 GM |
1861 | for the first frame. `window-system' is also now a function that |
1862 | takes a frame argument. | |
24cdde13 | 1863 | |
b350bdf2 CY |
1864 | *** The `keyboard-translate-table' variable and the terminal and |
1865 | keyboard coding systems are now terminal-local. | |
1866 | ||
24cdde13 GM |
1867 | *** You can specify a terminal device (`tty' parameter) and a terminal |
1868 | type (`tty-type' parameter) to `make-terminal-frame'. | |
1869 | ||
24cdde13 | 1870 | *** The function `make-frame-on-display' now works during a tty |
4e598d29 | 1871 | session. |
24cdde13 | 1872 | |
1e637a9f EZ |
1873 | *** A new `terminal' data type. |
1874 | The functions `get-device-terminal', `terminal-parameters', | |
765980a4 | 1875 | `terminal-parameter', `set-terminal-parameter' use this data type. |
24cdde13 | 1876 | |
b350bdf2 CY |
1877 | *** Function key sequences are now mapped using `local-function-key-map', |
1878 | a new variable. This inherits from the global variable function-key-map, | |
1879 | which is not used directly any more. | |
92cd6a7c | 1880 | |
b350bdf2 | 1881 | *** New hooks: |
da406961 | 1882 | |
7082ceb2 CY |
1883 | **** before-hack-local-variables-hook is called after setting new |
1884 | variable file-local-variables-alist, and before actually applying the | |
1885 | file-local variables. | |
1886 | ||
b350bdf2 CY |
1887 | **** `suspend-tty-functions' and `resume-tty-functions' are called |
1888 | after a tty frame has been suspended or resumed, respectively. The | |
1889 | functions are called with the terminal id of the frame being | |
1890 | suspended/resumed as a parameter. | |
da406961 | 1891 | |
b350bdf2 CY |
1892 | **** The special hook `delete-terminal-functions' is called before |
1893 | deleting a terminal. | |
82866ad5 | 1894 | |
b350bdf2 | 1895 | *** New functions: |
24cdde13 | 1896 | |
490f1197 | 1897 | **** `delete-terminal' |
9f44d41a | 1898 | |
b350bdf2 | 1899 | **** `suspend-tty' |
ea2e3ef4 | 1900 | |
b350bdf2 | 1901 | **** `resume-tty'. |
8d371994 | 1902 | |
b350bdf2 | 1903 | *** `initial-environment' holds the environment inherited from Emacs's parent. |
8d371994 | 1904 | |
b350bdf2 | 1905 | ** Redisplay changes |
16e82271 | 1906 | |
b350bdf2 CY |
1907 | *** For underlined characters, the distance between the underline and |
1908 | the baseline is controlled by a new variable, `underline-minimum-offset'. | |
16e82271 | 1909 | |
b350bdf2 CY |
1910 | *** You can now pass the value of the `invisible' property to |
1911 | invisible-p to check whether it would cause the text to be invisible. | |
540f3092 GM |
1912 | This is convenient when checking invisibility of text with no buffer |
1913 | position (e.g. in before/after-strings). | |
16e82271 | 1914 | |
b350bdf2 | 1915 | *** `clear-image-cache' can be told to flush only images of a specific file. |
16e82271 | 1916 | |
0c8b58e9 CY |
1917 | *** `vertical-motion' can now be given a goal column. |
1918 | It now accepts a cons cell (COLS . LINES) in its first argument, which | |
1919 | says to stop, where possible, at a pixel x-position equal to COLS | |
1920 | times the default column width. | |
16e82271 | 1921 | |
e589455f MR |
1922 | *** redisplay-end-trigger-functions, set-window-redisplay-end-trigger, |
1923 | and window-redisplay-end-trigger are obsolete. Use `jit-lock-register' | |
1924 | instead. | |
16e82271 | 1925 | |
605bfcb3 CY |
1926 | *** The new variables `wrap-prefix' and `line-prefix' specify display |
1927 | specs which are appended at display-time to every continuation line | |
1928 | and non-continuation line, respectively. In addition, Emacs | |
1929 | recognizes the `wrap-prefix' and `line-prefix' text or overlay | |
1930 | properties; these have the same effects as the variables of the same | |
1931 | name, but take precedence. | |
e589455f | 1932 | |
9ac64acd CY |
1933 | ** The Lisp interpreter now treats non-breaking space as whitespace. |
1934 | ||
b350bdf2 | 1935 | ** Miscellaneous new functions |
9f44d41a | 1936 | |
b350bdf2 | 1937 | *** `apply-partially' performs a "curried" application of a function. |
abf13a8b | 1938 | |
b350bdf2 CY |
1939 | *** `buffer-swap-text' swaps text between two buffers. This can be |
1940 | useful for modes such as tar-mode, archive-mode, RMAIL. | |
967b2682 | 1941 | |
6880f6db CY |
1942 | *** `combine-and-quote-strings' produces a single string from a list of strings |
1943 | sticking a separator string in between each pair, and quoting those | |
1944 | strings that include the separator as their substring. Useful for | |
1945 | consing shell command lines from the individual arguments. | |
1946 | ||
1947 | *** `custom-note-var-changed' tells Custom to treat the change in a | |
1948 | certain variable as having been made within Custom. | |
b350bdf2 CY |
1949 | |
1950 | *** `face-all-attributes' returns an alist describing all the basic | |
1951 | attributes of a given face. | |
1952 | ||
6880f6db CY |
1953 | *** `format-seconds' converts a number of seconds into a readable |
1954 | string of days, hours, etc. | |
b350bdf2 CY |
1955 | |
1956 | *** `image-refresh' refreshes all images associated with a given image | |
1957 | specification. | |
64639e26 | 1958 | |
6880f6db CY |
1959 | *** `locate-user-emacs-file' helps packages to select the appropriate |
1960 | place to save user-specific files. It defaults to `user-emacs-directory' | |
1961 | unless the file already exists at $HOME. | |
1962 | ||
6880f6db CY |
1963 | *** `read-color' reads a color name using the minibuffer. |
1964 | ||
6880f6db CY |
1965 | *** `read-shell-command' does what its name says, with completion. It |
1966 | uses the minibuffer-local-shell-command-map for that. | |
1967 | ||
6880f6db CY |
1968 | *** `split-string-and-unquote' splits a string into a list of substrings |
1969 | on the boundaries of a given delimiter, and unquotes the substrings that | |
1970 | are quoted. Useful for taking apart shell commands. | |
1971 | ||
b350bdf2 | 1972 | *** The two new functions `looking-at-p' and `string-match-p' can do |
45595a4f RS |
1973 | the same matching as `looking-at' and `string-match' without changing |
1974 | the match data. | |
89835619 | 1975 | |
81efacf9 CY |
1976 | *** The two new functions `make-serial-process' and |
1977 | `serial-process-configure' provide a Lisp interface to the new serial | |
1978 | port support (see Emacs changes, above). | |
1979 | ||
b350bdf2 CY |
1980 | ** Miscellaneous new variables |
1981 | ||
28aaa255 CY |
1982 | *** `auto-save-include-big-deletions', if non-nil, means auto-save is |
1983 | not turned off automatically after a big deletion. | |
1984 | ||
91f68422 CY |
1985 | *** `read-circle', if nil, disables the reading of recursive Lisp |
1986 | structures using the #N= and #N# syntax. | |
1987 | ||
b350bdf2 CY |
1988 | *** `this-command-keys-shift-translated' is non-nil if the key |
1989 | sequence invoking the current command was found by shift-translation. | |
1990 | ||
1991 | *** `window-point-insertion-type' determines the insertion-type of the | |
1992 | marker used for window-point. | |
1993 | ||
1994 | *** bookmark provides `bookmark-make-record-function' so special major | |
1995 | modes like Info can teach bookmark.el how to save and restore the | |
1996 | relevant data. | |
1997 | ||
b350bdf2 CY |
1998 | *** `fill-forward-paragraph-function' specifies which function the |
1999 | filling code should use to find paragraph boundaries. | |
2000 | ||
9bae34bf | 2001 | \f |
0bfd685e | 2002 | * New Packages for Lisp Programming in Emacs 23.1 |
efeb796b | 2003 | |
b350bdf2 CY |
2004 | ** The new package avl-tree.el deals with the AVL tree data structure. |
2005 | ||
2006 | ** The new package check-declare.el verifies the accuracy of | |
2007 | declare-function macros (see Lisp Changes, above). | |
d445b3f8 | 2008 | |
20202f5e | 2009 | ** find-cmd.el can build `find' commands using lisp syntax. |
6dfcbe31 | 2010 | |
babc4609 JL |
2011 | ** The package misearch.el has been added. It allows Isearch to search |
2012 | through multiple buffers. A variable `multi-isearch-next-buffer-function' | |
2013 | defines the function to call to get the next buffer to search in the series | |
2014 | of multiple buffers. Top-level commands `multi-isearch-buffers', | |
2015 | `multi-isearch-buffers-regexp', `multi-isearch-files' and | |
2016 | `multi-isearch-files-regexp' accept a single argument that specifies | |
2017 | a list of buffers/files to search for a string/regexp. | |
9097e8af | 2018 | |
b350bdf2 CY |
2019 | ** The new major mode `special-mode' is intended as a parent for |
2020 | major modes such as those that set the "'mode-class 'special" property. | |
d53a60a6 | 2021 | |
05197f40 | 2022 | \f |
a933dad1 | 2023 | ---------------------------------------------------------------------- |
5b87ad55 | 2024 | This file is part of GNU Emacs. |
a933dad1 | 2025 | |
ab73e885 | 2026 | GNU Emacs is free software: you can redistribute it and/or modify |
5b87ad55 | 2027 | it under the terms of the GNU General Public License as published by |
ab73e885 GM |
2028 | the Free Software Foundation, either version 3 of the License, or |
2029 | (at your option) any later version. | |
5b87ad55 GM |
2030 | |
2031 | GNU Emacs is distributed in the hope that it will be useful, | |
2032 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
2033 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
2034 | GNU General Public License for more details. | |
a933dad1 | 2035 | |
5b87ad55 | 2036 | You should have received a copy of the GNU General Public License |
ab73e885 | 2037 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
a933dad1 | 2038 | |
05197f40 | 2039 | \f |
a933dad1 DL |
2040 | Local variables: |
2041 | mode: outline | |
2042 | paragraph-separate: "[ \f]*$" | |
2043 | end: | |
ab5796a9 | 2044 | |
a533413c | 2045 | arch-tag: e759449d-88b3-4de4-9900-3a6c3dfa23e2 |