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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 | ||
45980501 GM |
35 | --- |
36 | ** `make install' now consistently ignores umask, creating a | |
37 | world-readable install. | |
38 | ||
f9245b5d | 39 | * Startup Changes in Emacs 23.2 |
adce950d | 40 | |
8686ac71 | 41 | ** Command-line option -Q (--quick) now also disables loading X resources. |
8aed8fa9 GM |
42 | Note however that this does not affect Lucid or Motif widgets, if you |
43 | are using those toolkits. On Windows, this option causes Emacs to | |
44 | ignore Registry settings, though environment variables set on the | |
45 | Registry are still honored. | |
f9245b5d CY |
46 | |
47 | *** The new variable `inhibit-x-resources' shows whether X resources | |
48 | were loaded. | |
8686ac71 | 49 | |
f9245b5d | 50 | * Changes in Emacs 23.2 |
fcb68f70 | 51 | |
2de9f71c SM |
52 | ** The maximum size of buffers (as well as the largest fixnum) is doubled. |
53 | On typical 32bit systems, buffers can now be up to 512MB. | |
54 | ||
1659ada0 JB |
55 | ** Function arguments in *Help* buffers are now in uppercase by default. |
56 | You can customize the new variable `help-downcase-arguments' to change it. | |
57 | ||
f9245b5d | 58 | ** Unibyte sessions are now considered obsolete. |
82e98df4 SM |
59 | I.e. the use of the environment variable EMACS_UNIBYTE, or command line |
60 | arguments --unibyte, --multibyte, --no-multibyte, and --no-unibyte | |
61 | is deprecated. Similarly for custom-izing enable-multibyte-characters, or | |
62 | setting default-enable-multibyte-characters. | |
63 | ||
d63a01ef CY |
64 | ** The default value of `trash-directory' has changed to nil, which |
65 | means that `move-file-to-trash' trashes files according to | |
66 | freedesktop.org specifications, the same method used by the Gnome, | |
67 | KDE, and XFCE desktops. (This change has no effect on Windows, which | |
68 | uses `system-move-file-to-trash' for trashing.) | |
69 | ||
3f1c6666 JD |
70 | +++ |
71 | ** Emacs frames can be maximized. | |
72 | The command line arguments -mm/--maximized and the value maximized to the | |
73 | frame parameter fullscreen makes the Emacs frame maximized. | |
74 | ||
7f1681d9 JD |
75 | +++ |
76 | ** New frame parameter sticky makes Emacs frames sticky in virtual desktops. | |
77 | ||
e044e4fc JD |
78 | ** The pointer now becomes invisible when typing. |
79 | Customize make-pointer-invisible to turn it off. | |
80 | ||
637fa988 JD |
81 | ** Emacs can use the system default monospaced font in Gnome. |
82 | The use of the system default font can be turned on or off by customizing | |
83 | the variable 'font-use-system-font'. It is off by default. | |
84 | If the system default is changed, Emacs changes also. | |
85 | This requires that gconf-support is built in. If configure finds the | |
86 | gconf-libraries, that support is included. Gconf-support can be | |
87 | turned off with the configure option --without-gconf. | |
88 | ||
89 | ** Emacs now reacts to Xft-changes made by configuration tools on X11. | |
90 | Changes to antialias, hinting, hintstyle, RGBA, DPI and lcdfilter are | |
91 | handeled. The XSETTINGS mechanism is used to implement this. | |
92 | ||
6798b799 CY |
93 | ** Killing a buffer with a running process now asks for confirmation. |
94 | You can remove this query in two ways: either remove | |
95 | `process-kill-buffer-query-function' from `kill-buffer-query-functions', | |
96 | or set the appropriate process flag with `set-process-query-on-exit-flag'. | |
f4fcbe98 | 97 | |
100b6355 KR |
98 | ** The variable `load-in-progress' won't get corrupted by binding it |
99 | with `let'. In certain situations, loading an Emacs Lisp file from | |
100 | source while in the midst of loading another file (e.g., with | |
101 | `require' or `autoload') could cause the value of `load-in-progress' | |
102 | to be corrupted once the outer load completed. Most code doesn't care | |
103 | about this, but some (like c-mode) may check it. | |
104 | ||
34481ea1 CY |
105 | ** File-local variable changes |
106 | ||
107 | *** Specifying a minor mode as a local variables enables that mode, | |
108 | unconditionally. The previous behavior, toggling the mode, was | |
109 | neither reliable nor generally desirable. | |
110 | ||
111 | *** New commands for adding and removing file-local variables: | |
112 | `add-file-local-variable', `delete-file-local-variable', | |
113 | `add-file-local-variable-prop-line', and | |
114 | `delete-file-local-variable-prop-line'. | |
115 | ||
116 | *** New commands for adding and removing directory-local variables, | |
117 | and copying them to and from file-local variable lists: | |
118 | `add-dir-local-variable', `delete-dir-local-variable', | |
119 | `copy-dir-locals-to-file-locals', | |
82941b5e JL |
120 | `copy-dir-locals-to-file-locals-prop-line' and |
121 | `copy-file-locals-to-dir-locals'. | |
122 | ||
3c736e33 KH |
123 | ** New coding system `utf-8-hfs' is available in |
124 | international/ucs-normalize.el. It is suitable for | |
125 | default-file-name-coding-system on Mac OS X. | |
126 | ||
05197f40 | 127 | \f |
0badeef4 GM |
128 | * Editing Changes in Emacs 23.2 |
129 | ||
f9245b5d CY |
130 | ** Selection changes |
131 | +++ | |
132 | *** If `select-active-regions' is t, any active region automatically | |
133 | becomes the primary selection (for interaction with other window | |
134 | applications). If you enable this, you might want to bind | |
135 | `mouse-yank-primary' to Mouse-2. | |
136 | ||
137 | *** When `save-interprogram-paste-before-kill' is non-nil, emacs will | |
138 | not clobber the the interprogram paste when something is killed in it | |
139 | by saving the former in the `kill-ring' before the latter. | |
140 | ||
141 | ** When `kill-do-not-save-duplicates' is non-nil, identical subsequent | |
142 | kills are not duplicated in the `kill-ring'. | |
143 | ||
0badeef4 GM |
144 | +++ |
145 | ** The default value for `blink-matching-paren-distance' has been increased. | |
146 | ||
f9245b5d CY |
147 | ** The new completion-style `initials' is available. |
148 | For instance, this can complete M-x lch to list-command-history. | |
149 | ||
0badeef4 | 150 | \f |
009c963c MA |
151 | * Changes in Specialized Modes and Packages in Emacs 23.2 |
152 | ||
8f72f03c SM |
153 | ** lucid.el and levents.el are now declared obsolete. |
154 | ||
0667de21 SM |
155 | ** pcomplete provides a new command `pcomplete-std-completion' which |
156 | is similar to `pcomplete' but using the standard completion UI code. | |
157 | ||
2aa0e5bf SM |
158 | ** .calc.el and .abbrev_defs obey user-emacs-directory. |
159 | ||
d10c031a EZ |
160 | ** Calc graphing commands (`g f' etc.) now work on MS-Windows, |
161 | if you have the native Windows port of Gnuplot version 3.8 or later | |
162 | installed. | |
163 | ||
f9245b5d CY |
164 | ** Calendar and diary |
165 | ||
166 | *** Fancy diary display is now the default. | |
167 | If you prefer the simple display, customize `diary-display-function'. | |
168 | ||
169 | *** The diary's fancy display now enables view-mode. | |
170 | ||
171 | --- | |
172 | *** The command `calendar-current-date' accepts an optional argument | |
173 | giving an offset from today. | |
174 | ||
175 | ** Desktop | |
176 | --- | |
177 | *** The default value for `desktop-buffers-not-to-save' is nil. | |
178 | This means Desktop will try restoring all buffers, when you restart | |
179 | your Emacs session. Also, `desktop-buffers-not-to-save' is only | |
180 | effective for buffers that have no associated file. If you want to | |
181 | exempt buffers that do correspond to files, customize the value of | |
182 | `desktop-files-not-to-save' instead. | |
183 | ||
fecbcdcb GM |
184 | ** FIXME mail-user-agent change |
185 | This probably affects a lot of documentation. | |
186 | ||
ee047ec4 GM |
187 | ** FIXME gdb-mi |
188 | ||
9f18817f JL |
189 | ** Info |
190 | ||
191 | *** The new command `Info-virtual-index' bound to "I" displays a menu of | |
192 | matched topics found in the index. | |
193 | ||
f38fd73d JL |
194 | *** The new command `info-finder' replaces finder.el with a virtual Info |
195 | manual that generates an Info file which gives the same information | |
196 | through a menu structure. | |
197 | ||
009c963c MA |
198 | +++ |
199 | ** New connection methods in Tramp. | |
8b15e920 MA |
200 | The new connection methods "rsyncc", "imap" and "imaps" have been |
201 | introduced. On systems which support GVFS-Fuse, Tramp offers also the | |
202 | new connection methods "dav", "davs", "obex" and "synce". | |
009c963c | 203 | |
f9245b5d | 204 | ** nXML mode is now the default for editing XML files. |
8525a1d6 | 205 | |
3c3bf6ce DN |
206 | ** VC and related modes |
207 | ||
b4e813ca DN |
208 | *** When using C-x v v or C-x v i on a unregistered file that is in a |
209 | directory not controlled by any VCS, ask the user what VC backend to | |
210 | use to create a repository, create a new repository and register the | |
211 | file. | |
212 | ||
32ba3abc DN |
213 | *** FIXME: add info about the new VC functions: vc-root-diff and |
214 | vc-root-print-log once they stabilize. | |
215 | ||
48b27575 DN |
216 | *** The log functions (C-x v l and C-x v L) do not show the full log |
217 | by default anymore. The number of entries shown can be chosen | |
218 | interactively with a prefix argument, by customizing | |
219 | vc-log-show-limit. The log buffer display buttons that can be used | |
220 | to change the number of entries shown. | |
221 | RCS, SCCS, CVS and Git do not support this feature. | |
222 | ||
d1e4c403 DN |
223 | *** vc-annotate supports annotations through file copies and renames, |
224 | it displays the old names for the files and it can show logs/diffs for | |
225 | the corresponding lines. Currently only Git and Mercurial take | |
226 | advantage of this feature. | |
227 | ||
3c3bf6ce DN |
228 | *** When a file is not found, VC will not try to check it out of RCS anymore. |
229 | ||
e05b6a4e DN |
230 | *** vc-git changes |
231 | ||
232 | **** The new variable vc-git-add-signoff can be used to add a | |
291bc6bd DN |
233 | Signed-off-by line when committing. |
234 | ||
6b4df8a6 DN |
235 | **** Support for operating with stashes has been added to vc-dir: the stash list is |
236 | displayed in the *vc-dir* header, stashes can be created, removed and | |
237 | their content displayed. | |
238 | ||
e05b6a4e DN |
239 | **** vc-dir displays the stash status |
240 | ||
31764e15 SM |
241 | *** log-edit-strip-single-file-name controls whether or not single filenames |
242 | are stripped when copying text from the ChangeLog to the *VC-Log* buffer. | |
243 | ||
49b289c0 GM |
244 | ** Elint |
245 | ||
246 | --- | |
247 | *** Elint now uses compilation-mode. | |
248 | ||
249 | --- | |
250 | *** Elint can now scan individual files and whole directories, | |
251 | and can be run in batch mode. | |
252 | ||
253 | --- | |
254 | *** Elint does a more thorough initialization, and recognizes more built-in | |
255 | functions and variables. Customize `elint-scan-preloaded' if you want | |
256 | to sacrifice some accuracy for a faster startup. | |
257 | ||
258 | --- | |
259 | *** Elint attempts some basic understanding of featurep and (f)boundp tests. | |
260 | ||
261 | --- | |
262 | *** Customize `elint-ignored-warnings' to suppress some warnings. | |
263 | ||
9f18817f JL |
264 | ** Miscellaneous |
265 | ||
266 | *** The new command `async-shell-command' bound globally to `M-&' executes | |
267 | the command asynchronously without the need to manually add ampersand to | |
268 | the end of the command. Its output appears in the buffer `*Async Shell | |
269 | Command*'. | |
0badeef4 | 270 | |
f9245b5d CY |
271 | +++ |
272 | *** Autorevert Tail mode now works now for remote files. | |
273 | ||
af077012 SY |
274 | \f |
275 | * New Modes and Packages in Emacs 23.2 | |
276 | ||
b9de0a46 CY |
277 | ** FIXME CEDET |
278 | ||
304fe7fa | 279 | ** js.el is a new major mode for JavaScript files. |
0822135e | 280 | |
3d994264 TZ |
281 | ** imap-hash.el is a new library to address IMAP mailboxes as hashtables. |
282 | ||
0822135e | 283 | \f |
b3429475 GM |
284 | * Incompatible Lisp Changes in Emacs 23.2 |
285 | ||
286 | ** Several obsolete functions removed. | |
287 | The functions have been obsolete since Emacs 19, and are unlikely to | |
288 | be in use: | |
289 | ||
290 | time-stamp-month-dd-yyyy, time-stamp-dd/mm/yyyy, time-stamp-mon-dd-yyyy | |
291 | time-stamp-dd-mon-yy, time-stamp-yy/mm/dd, time-stamp-yyyy/mm/dd, | |
292 | time-stamp-yyyy-mm-dd, time-stamp-yymmdd, time-stamp-hh:mm:ss, | |
293 | time-stamp-hhmm, baud-rate | |
294 | ||
295 | --- | |
296 | ** Support for generating Emacs 18 compatible bytecode (by setting | |
297 | the variable `byte-compile-compatibility') has been removed. | |
298 | ||
299 | \f | |
0822135e CY |
300 | * Lisp changes in Emacs 23.2 |
301 | ||
4fcc3d32 SM |
302 | ** The 4th arg to all-completions (aka hide-spaces) is declared obsolete. |
303 | ||
528c56e2 SM |
304 | ** read-file-name-predicate is obsolete. It was used to pass the predicate |
305 | to read-file-name-internal because read-file-name-internal abused its `pred' | |
306 | argument to pass the current directory, but this hack is not needed | |
307 | any more. | |
308 | ||
d5e63715 SM |
309 | ** completion-base-size is obsoleted by completion-base-position. |
310 | This change causes a few backward incompatibilities, mostly with | |
311 | choose-completion-string-functions where the `mini-p' argument has | |
312 | been replaced by a `base-position' argument, and where the `base-size' | |
313 | argument is now always nil. | |
314 | ||
9d28c33e SM |
315 | ** called-interactively-p now takes one argument and replaces interactive-p |
316 | which is now marked obsolete. | |
ced10a4c SM |
317 | ** New function set-advertised-calling-convention makes it possible |
318 | to obsolete arguments as well as make some arguments mandatory. | |
0ee98606 | 319 | ** eval-next-after-load is obsolete. |
838ff458 SM |
320 | ** New hook `after-load-functions' run after loading an Elisp file. |
321 | ||
8cb95edf SM |
322 | ** You can control which binding is preferentially shown in menus and |
323 | docstrings by adding a `:advertised-binding' property to the corresponding | |
324 | command's symbol. That property can hold a single binding or a list | |
325 | of bindings. | |
326 | ||
83a5aac5 SM |
327 | ** New macro with-silent-modifications to tweak text properties without |
328 | affecting the buffer's modification state. | |
4e3b4528 SM |
329 | ** All the default-FOO variables that hold the default value of the FOO |
330 | variable, are now declared obsolete. | |
331 | ||
03a74b84 SM |
332 | ** read-key is a function halfway between read-event and read-key-sequence. |
333 | It reads a single key, but obeys input and escape sequence decoding. | |
7284d47a | 334 | |
a126db16 GM |
335 | ** start-process-shell-command and start-file-process-shell-command |
336 | now only take a single `command' argument. | |
7284d47a MA |
337 | |
338 | ** The variable `process-file-side-effects' shall be bound to nil, if | |
339 | a `process-file' call does not change a remote file. By this, file | |
340 | name handlers like Tramp can apply optimizations. | |
341 | ||
0822135e CY |
342 | ** Hash tables have a new printed representation that is readable. |
343 | The feature `hashtable-print-readable' identifies this new | |
344 | functionality. | |
3c736e33 KH |
345 | |
346 | ** Functions performing Unicode normalization are added. They are: | |
347 | ucs-normalize-NFD-region, ucs-normalize-NFD-string, | |
348 | ucs-normalize-NFC-region, ucs-normalize-NFC-string, | |
349 | ucs-normalize-NFKD-region, ucs-normalize-NFKD-string, | |
350 | ucs-normalize-NFKC-region, ucs-normalize-NFKC-string, | |
351 | ucs-normalize-HFS-NFD-region, ucs-normalize-HFS-NFD-string, | |
352 | ucs-normalize-HFS-NFC-region, ucs-normalize-HFS-NFC-string. | |
94862c1b SM |
353 | |
354 | ** completion-annotate-function specifies how to compute annotations | |
355 | for completions displayed in *Completions*. | |
197b67b1 | 356 | |
d7fbf3f0 | 357 | +++ |
197b67b1 GM |
358 | ** Face aliases can now be marked as obsolete, using the macro |
359 | `define-obsolete-face-alias'. | |
14ad89e1 GM |
360 | |
361 | --- | |
362 | ** Changing the file-names generated by byte-compilation by redefining | |
363 | the function `byte-compile-dest-file' before loading bytecomp.el is obsolete. | |
364 | Instead, customize byte-compile-dest-file-function. | |
f9245b5d | 365 | |
77c64ca0 GM |
366 | --- |
367 | ** `byte-compile-warnings' can have a new member, `constants'. | |
368 | ||
d3080264 MA |
369 | ** `delete-directory' has an optional parameter RECURSIVE. |
370 | ||
9a03b2e1 MA |
371 | ** New function `copy-directory', which copies a directory recursively. |
372 | ||
9976fe82 | 373 | +++ |
72030c76 GM |
374 | ** New function `window-full-height-p', analogous to the full-width version. |
375 | ||
d3080264 | 376 | \f |
f9245b5d CY |
377 | * Changes in Emacs 23.2 on non-free operating systems |
378 | ||
379 | --- | |
380 | ** On MS-Windows, `display-time' now displays the system load average | |
381 | as well as the time, as it does on GNU and Unix. | |
9f18817f | 382 | |
009c963c | 383 | \f |
0bfd685e | 384 | * Installation Changes in Emacs 23.1 |
c58dccad | 385 | |
3f7194ed | 386 | ** The default X toolkit is now Gtk+, rather than Lucid. |
09e18d03 CY |
387 | The configure option `--with-gtk' has been removed. Gtk is now the |
388 | default toolkit, but you can use --with-x-toolkit=gtk if necessary. | |
3f7194ed | 389 | |
09e18d03 CY |
390 | ** New font code. |
391 | Fonts are handled by new code capable of dealing with multiple font | |
de9efca0 | 392 | backends. This uses the freetype and fontconfig libraries. |
16e82271 | 393 | |
09e18d03 CY |
394 | *** Emacs now accepts font names supplied in the fontconfig format |
395 | (e.g. "monospace-12:bold") and GTK format (e.g. "Monospace Bold 12"). | |
1abe3a1e | 396 | |
09e18d03 CY |
397 | *** Added support for local fonts (fonts installed on the machine |
398 | where Emacs is running). | |
399 | ||
400 | *** Added support for the Xft library for antialiasing. | |
401 | ||
402 | *** Added support for the otf library for complex text layout by | |
403 | OpenType fonts. | |
404 | ||
405 | *** Added support for the m17n library for text shaping. | |
15f02f65 | 406 | |
09e18d03 | 407 | ** Changes to image support |
16e82271 | 408 | |
09e18d03 | 409 | *** configure now checks for libgif before libungif when searching for |
9d3cc9b2 | 410 | a GIF library. |
16e82271 | 411 | |
09e18d03 CY |
412 | *** Emacs now supports the SVG image format through librsvg2. |
413 | ||
fab17942 JR |
414 | *** Emacs now supports multi-page TIFF images. |
415 | ||
006a2cde | 416 | ** New NeXTSTEP-based port |
3dcdb6ea | 417 | This provides support for GNUstep (via the GNUstep libraries) and Mac |
1e9b0fb2 | 418 | OS X (via the Cocoa libraries). |
043023ca | 419 | |
2e538385 | 420 | Specify --with-ns to configure for this. By default, a self-contained |
043023ca CY |
421 | app will be built (containing all lisp). To install/share lisp with |
422 | other emacsen (e.g. X11 build) use --disable-ns-self-contained. See | |
423 | nextstep/README and nextstep/INSTALL in the Emacs source directory. | |
006a2cde CY |
424 | |
425 | ** Mac OS X is no longer supported via Carbon. | |
426 | Use the NeXTSTEP port, described above. | |
36e625ec | 427 | |
09e18d03 CY |
428 | ** The new configuration option "--with-dbus" enables D-Bus language |
429 | bindings for Emacs. | |
07e5c0b0 | 430 | |
bb9f7948 EZ |
431 | ** Support for many obsolete platforms has been removed. |
432 | See the list at the end of etc/MACHINES for details. | |
16e82271 | 433 | |
09e18d03 | 434 | *** Support for systems without alloca has been removed. |
16e82271 | 435 | |
09e18d03 | 436 | *** Support for Sun windows has been removed. |
16e82271 | 437 | |
2e0ef05b | 438 | *** The `emacstool' utility has been removed. |
09e18d03 | 439 | |
006a2cde | 440 | ** The following platforms will be removed in a future Emacs version: |
9bc072cc CY |
441 | If you are still using Emacs on one of these platforms, please email |
442 | emacs-devel@gnu.org to inform the Emacs developers. | |
006a2cde | 443 | |
9bc072cc | 444 | *** Old GNU/Linux systems based on libc version 5. |
006a2cde | 445 | |
9bc072cc CY |
446 | *** Old FreeBSD, NetBSD, and OpenBSD systems based on the COFF |
447 | executable format. | |
006a2cde CY |
448 | |
449 | *** Solaris versions 2.6 and below. | |
450 | ||
32847230 CY |
451 | *** Solaris on IBM RS6000 machines. |
452 | ||
453 | *** UNIX System V (the original SysV, not later platforms based on it). | |
454 | ||
9bc072cc CY |
455 | *** Unixware on non-x86 machines. |
456 | ||
32847230 CY |
457 | *** Platforms not supporting shared libraries (i.e., requiring the |
458 | NO_SHARED_LIBS compilation flag). | |
006a2cde | 459 | |
a46ee55c GM |
460 | ** The configure options `--with-gcc', `--without-gcc' have been removed. |
461 | Configure will use gcc by default. Set the CC environment variable if | |
462 | you need control over which C compiler is used. | |
463 | ||
09e18d03 CY |
464 | ** The refcards are now shipped as PDF files. |
465 | ||
3b75ca8b GM |
466 | ** The manuals are now licensed under the GNU Free Documentation License v1.3, |
467 | or any later version. | |
468 | ||
09e18d03 CY |
469 | ** Emacs 23 comes with a new set of default icons. |
470 | Various resolutions are available as etc/images/icons/hicolor/*/apps/emacs.png. | |
471 | The Emacs 22 icon is available as `emacs22.png' in the same location. | |
4e5cdb4f | 472 | \f |
6dadd99f NR |
473 | * Changes in Emacs 23.1 |
474 | ||
09e18d03 | 475 | ** Improved X Window System support |
16e82271 | 476 | |
09e18d03 CY |
477 | *** Emacs now supports using both X displays and ttys in one session. |
478 | With an Emacs server active (M-x server-start), `emacsclient -t' | |
479 | creates a tty frame connected to the running emacs server. You can | |
480 | use any number of different ttys. `emacsclient -c' creates a new X11 | |
481 | frame on the current $DISPLAY (or a tty frame if $DISPLAY is not set). | |
e390f3a3 JD |
482 | There may be problems if a display exits unexpectedly and Emacs is compiled |
483 | with Gtk+, see etc/PROBLEMS. | |
780d7bb9 RS |
484 | |
485 | You can test for the presence of this feature in your Lisp code by | |
486 | testing for the `multi-tty' feature. | |
16e82271 CY |
487 | |
488 | *** Emacs starts in the background, as a daemon, when given the | |
eab2ee89 DN |
489 | --daemon command line argument. It disconnects from the terminal and |
490 | starts the server. Clients can connect and create graphical or | |
491 | terminal frames using emacsclient. | |
16e82271 | 492 | |
c569485c | 493 | **** emacsclient starts emacs in daemon mode and connects to it when |
82d0a250 DN |
494 | --alternate-editor="" is used (or when the evironment variable |
495 | ALTERNATE_EDITOR is set to "") and emacsclient cannot connect to an | |
c569485c DN |
496 | emacs server. |
497 | ||
09e18d03 | 498 | *** The new command close-display-connection closes a connection to a |
717c97e5 | 499 | remote display. There are some bugs for Gtk+. See etc/PROBLEMS. |
d82c3d44 | 500 | |
09e18d03 CY |
501 | *** Emacs now supports the XEmbed specification. |
502 | You can embed Emacs in another application on X11. The new command line | |
503 | option --parent-id is used to pass the parent window id to Emacs. See | |
7b476dbe JD |
504 | http://standards.freedesktop.org/xembed-spec/xembed-spec-latest.html |
505 | for details about XEmbed. | |
16e82271 | 506 | |
09e18d03 CY |
507 | *** Emacs can now set the frame opacity. |
508 | The opacity of a frame can be controlled by setting the `alpha' frame | |
509 | parameter. This only takes effect on a compositing window manager for | |
920ab46c SZ |
510 | the X Window System, such as Compiz, Beryl and Compiz Fusion, on Mac |
511 | OS X, or on Windows 2000 and later versions of Windows. | |
55f9bad5 GM |
512 | |
513 | The alpha parameter should be an integer between 0 (transparent) and | |
09e18d03 CY |
514 | 100 (opaque), or a float number between 0.0 and 1.0. It can also be a |
515 | cons cell (ACTIVE . INACTIVE), where ACTIVE is the opacity of an | |
540f3092 | 516 | active frame and INACTIVE is the opacity of non-active frames. |
55f9bad5 | 517 | |
09e18d03 CY |
518 | The variable `frame-alpha-lower-limit' defines a lower bound for the |
519 | opacity; the default is 20. | |
55f9bad5 | 520 | |
09e18d03 | 521 | ** Internationalization changes |
16e82271 | 522 | |
09e18d03 CY |
523 | *** The Emacs character set is now a superset of Unicode. |
524 | (It has about four times the code space, which should be plenty). | |
0a963185 | 525 | |
09e18d03 | 526 | The internal encoding used for buffers and strings is now |
16e82271 CY |
527 | Unicode-based and called `utf-8-emacs' (`emacs-internal' is an alias |
528 | for this). This encoding is backward-compatible with Unicode's UTF-8 | |
529 | encoding. The internal encoding previously used by Emacs, | |
530 | `emacs-mule', is still available for reading and writing files. | |
6dadd99f | 531 | |
09e18d03 CY |
532 | During byte-compilation, Emacs 23 uses `utf-8-emacs' to write files. |
533 | As a result, byte-compiled files containing non-ASCII characters can't | |
534 | be read by earlier versions of Emacs. Files compiled by Emacs 20, 21, | |
16e82271 CY |
535 | or 22 are loaded correctly as `emacs-mule' (whether or not they |
536 | contain multibyte characters). This takes somewhat more time, so it | |
537 | may be worth recompiling existing .elc files which don't need to be | |
538 | shared with older Emacsen. | |
3ae459e5 | 539 | |
09e18d03 | 540 | *** There are new coding systems/aliases; see M-x list-coding-systems. |
c2e8590b | 541 | |
09e18d03 CY |
542 | *** There is a new charset implementation with many new charsets. |
543 | See M-x list-character-sets. New charsets can be defined conveniently | |
544 | as tables of unicodes. | |
1abe3a1e | 545 | |
09e18d03 CY |
546 | *** There are new language environments for Chinese-GBK, |
547 | Chinese-GB18030, Khmer, Bengali, Punjabi, Gujarati, Oriya, Telugu, | |
548 | Sinhala, and TaiViet. | |
16e82271 | 549 | |
09e18d03 CY |
550 | *** The minor modes unify-8859-on-encoding-mode and |
551 | unify-8859-on-decoding-mode are obsolete. | |
16e82271 | 552 | |
e94d0645 JL |
553 | *** `ucs-insert' is bound to `C-x 8 RET' and in addition to hex numbers |
554 | accepts numbers in hash notation (e.g. #o21430 for octal, or #10r8984 for | |
555 | decimal). It also accepts Unicode character names with completion. | |
16e82271 | 556 | |
6d496c76 TZ |
557 | *** The `cyrillic-translit' input method supports many new characters. |
558 | Common typographical characters available from Unicode were added to | |
559 | `cyrillic-translit': punctuation marks, accented characters, fractions, | |
560 | and others. | |
561 | ||
09e18d03 | 562 | ** Emacs now supports serial port access on GNU/Linux, Unix, and |
81efacf9 CY |
563 | Windows. The new command `serial-term' starts an interactive terminal |
564 | on a serial port. The serial port can be configured at runtime with | |
565 | the mode-line mouse menu. | |
6c5d503f | 566 | |
09e18d03 | 567 | ** Menu Bar changes |
16e82271 | 568 | |
09e18d03 CY |
569 | *** In the Options menu, the "Set Default Font" item applies the |
570 | selected font to the `default' face on all frames, not just the | |
571 | current frame. Furthermore, if Emacs is compiled with both GTK and | |
572 | Fontconfig support, the "Set Default Font" item uses the GTK font | |
573 | selection dialog instead of an Emacs pop-up menu. | |
16e82271 | 574 | |
09e18d03 CY |
575 | *** The font setting chosen by "Set Default Font" is saved if the |
576 | "Save Options" item is used. | |
1b21ee06 | 577 | |
b350bdf2 CY |
578 | *** The Tools menu contains a new Encryption/Decryption submenu. |
579 | This contains commands provided by EasyPG, the newly-included | |
580 | interface to GnuPG (see New Modes and Packages). | |
16e82271 | 581 | |
81efacf9 CY |
582 | *** In the Options menu, the "Truncate Long Lines in the Buffer" entry |
583 | has been replaced with a submenu offering three different ways to | |
584 | handle long lines: truncation, continuation at the window edge, and | |
697f6b43 | 585 | the new word wrapping behavior (see Editing Changes, below). |
16e82271 | 586 | |
c1337511 DN |
587 | *** Improvements to menus for major and minor modes |
588 | More major and minor modes now have a mode specific menu, and existing | |
589 | mode menus have been improved to include more functionality. | |
590 | ||
09e18d03 | 591 | ** Mode-line changes |
16e82271 | 592 | |
09e18d03 CY |
593 | *** The mode-line displays a `@', instead of `-', if the |
594 | default-directory for the current buffer is on a remote machine. | |
16e82271 | 595 | |
09e18d03 CY |
596 | *** The mode-line displays a mode menu when mouse-1 is clicked on a |
597 | minor mode, in the same way as it already did for major modes. | |
16e82271 | 598 | |
09e18d03 CY |
599 | *** The `mode-line-emphasis' face is used to highlight certain |
600 | mode-line information (e.g. waiting for a VC command to finish). | |
16e82271 | 601 | |
c1337511 | 602 | *** The mode-line tooltips have been improved to provide more details. |
16e82271 | 603 | |
c1337511 DN |
604 | *** The VC, line/colum number and minor mode indicators on the mode |
605 | line are now interactive: mouse-1 can be used on them to pop up a menu. | |
606 | ||
b798e26a GM |
607 | ** File deletion can make use of the Recycle Bin or system Trash folder. |
608 | Set `delete-by-moving-to-trash' non-nil to use this. Deleted files | |
0956be4f | 609 | and directories will then be sent to the Recycle Bin on Windows, and |
b798e26a GM |
610 | to `trash-directory' on other systems. |
611 | ||
09e18d03 | 612 | ** Directory-local variables can now be defined. |
fc0318c6 JL |
613 | By default, Emacs looks in .dir-locals.el for directory-local |
614 | variables. For more information, see `dir-locals-set-directory-class' | |
615 | and `dir-locals-set-class-variables'. | |
307f3501 | 616 | |
b798e26a GM |
617 | ** Emacs can now use `auth-source' for authentication. |
618 | `smtpmail' and `url' (Tramp and Gnus also) use `auth-source' to obtain | |
619 | login names and passwords. The match, if found, is reported | |
620 | in *Messages* with the password blanked out. | |
621 | ||
622 | ** `where-is-preferred-modifier' can specify your favorite modifier. | |
623 | ||
6dadd99f | 624 | \f |
0bfd685e | 625 | * Startup Changes in Emacs 23.1 |
21f7b9d8 | 626 | |
3063e326 JL |
627 | ** The option `inhibit-startup-screen' (with aliases to old names |
628 | `inhibit-splash-screen' and `inhibit-startup-message') doesn't inhibit | |
629 | display of the initial message in the *scratch* buffer. If you don't | |
630 | want to display the initial message in the *scratch* buffer at startup, | |
631 | you can set the option `initial-scratch-message' to nil. | |
632 | ||
56e1896b JL |
633 | ** New user option `initial-buffer-choice' specifies what to display |
634 | after starting Emacs: startup screen, *scratch* buffer, visiting a | |
635 | file or directory. | |
636 | ||
aa5310e4 DK |
637 | ** New alias `argv' for `command-line-args-left' |
638 | This is a convenience alias, so that one can write `(pop argv)' | |
639 | inside of --eval command line arguments in order to access | |
640 | following arguments. | |
f8fd7ed3 GM |
641 | |
642 | ** The abbrev file is no longer read at startup in batch mode. | |
f36acfd9 EZ |
643 | |
644 | ** Emacs now supports invocation by an X session manager. | |
645 | It can save a session and restore it later. See the documentation of | |
646 | the functions `emacs-session-save' and `emacs-session-restore'. | |
647 | (Actually, this feature was introduced with Emacs 22, but it was not | |
648 | documented.) | |
c44da964 | 649 | \f |
0bfd685e | 650 | * Incompatible Editing Changes in Emacs 23.1 |
b58cb59f | 651 | |
d1949cd5 JL |
652 | ** In Dired, `dired-flag-garbage-files' is rebound from `&' to `%&' |
653 | on the regexp command prefix map. | |
654 | ||
117907d4 JL |
655 | ** In Dired-x, all command guesses for ! are now added to the default |
656 | list accessible by M-n instead of pushing all guesses temporarily into | |
657 | the history list. | |
658 | ||
e94d0645 JL |
659 | ** In Isearch mode, a special case of typing `C-w' at the beginning of |
660 | the minibuffer that toggles word search (i.e. using key sequences | |
661 | `C-s RET C-w' or `C-s M-e C-w') is obsolete. You can use the global key | |
662 | `M-s w' to start word search, or type `M-s w' in Isearch mode to | |
fd4c2a39 JL |
663 | toggle word search. To start nonincremental word search you can now use |
664 | `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 | 665 | |
45ad1cc5 JL |
666 | ** In Info, `Info-search' is unbound from `M-s' to allow using `M-s w' |
667 | for word search as well as other search commands from the global prefix | |
668 | key `M-s'. `Info-search' is still bound to `s', and also incremental | |
669 | search commands `C-s', `C-M-s', `C-r', `C-M-r' are available for searching | |
670 | through multiple Info nodes, together with their nonincremental versions | |
671 | `C-s RET', `C-r RET', `C-M-s RET', `C-M-r RET', `M-s w RET'. | |
672 | ||
16e82271 CY |
673 | ** In Text mode, `center-line' and `center-paragraph' are rebound from |
674 | `M-s' and `M-S' to global keys `M-o M-s' and `M-o M-S' on the global | |
675 | prefix map `M-o', which is intended for such formatting commands. | |
4e14951f | 676 | |
e405fa5f | 677 | ** The following input methods were removed in Emacs 22.2, but this was |
9a930d75 | 678 | not advertised: danish-alt-postfix, esperanto-alt-postfix, |
e405fa5f RS |
679 | finnish-alt-postfix, german-alt-postfix, icelandic-alt-postfix, |
680 | norwegian-alt-postfix, scandinavian-alt-postfix, spanish-alt-postfix, | |
681 | and swedish-alt-postfix. Use the versions without "alt-", which are | |
682 | identical. | |
0b0914ae | 683 | |
406c0f12 | 684 | \f |
0bfd685e | 685 | * Editing Changes in Emacs 23.1 |
406c0f12 | 686 | |
0c8b58e9 CY |
687 | ** The C-n and C-p line-motion commands now move by screen lines, |
688 | taking continued lines and variable-width characters into account. | |
689 | Setting `line-move-visual' to nil reverts this to the previous | |
16e82271 CY |
690 | behavior (i.e., motion by logical lines based on buffer contents |
691 | alone). | |
0c8b58e9 | 692 | |
09e18d03 | 693 | ** C-x C-c now invokes `save-buffers-kill-terminal', and C-z now |
16e82271 | 694 | invokes `suspend-frame'. These changes are for compatibility with the |
09e18d03 | 695 | new multi-tty support (see `Improved X Window System support' above). |
3ae459e5 | 696 | |
09e18d03 | 697 | ** Mark changes |
16e82271 | 698 | |
3ae459e5 | 699 | *** Transient Mark mode is now on by default. |
16e82271 | 700 | |
3ae459e5 | 701 | *** mark-even-if-inactive now defaults to t |
16e82271 | 702 | |
b350bdf2 CY |
703 | *** When Transient Mark mode is on, C-SPC C-SPC pushes a mark without |
704 | activating it. | |
16e82271 | 705 | |
3ae459e5 CY |
706 | *** When Transient Mark mode is on, M-q now fills the region if the |
707 | region is active. Otherwise, it fills the current paragraph. | |
16e82271 | 708 | |
3ae459e5 CY |
709 | *** When Transient Mark mode is on, M-$ now checks spelling of the |
710 | region if the region is active. Otherwise, it checks spelling of the | |
dc868f13 | 711 | word at point. |
16e82271 | 712 | |
3ae459e5 CY |
713 | *** When Transient Mark mode is on, TAB now indents the region if the |
714 | region is active. | |
16e82271 CY |
715 | |
716 | *** The variable `use-empty-active-region' controls whether an empty | |
717 | active region in Transient Mark mode should make commands operate on | |
718 | that empty region. | |
3ae459e5 CY |
719 | |
720 | ** Temporarily active regions | |
16e82271 | 721 | |
3ae459e5 CY |
722 | *** The new variable shift-select-mode, non-nil by default, controls |
723 | shift-selection. When Shift Select mode is on, shift-translated | |
724 | motion keys (e.g. S-left and S-down) activate and extend a temporary | |
725 | region, similar to mouse-selection. | |
16e82271 | 726 | |
3ae459e5 CY |
727 | *** Temporarily active regions, created using shift-selection or |
728 | mouse-selection, are not necessarily deactivated in the next command. | |
729 | They are only deactivated after point motion commands that are not | |
730 | shift-translated, or after commands that would ordinarily deactivate | |
731 | the mark in Transient Mark mode (e.g., any command that modifies the | |
732 | buffer). | |
733 | ||
3307af6c | 734 | ** Minibuffer and completion changes |
16e82271 | 735 | |
206faa92 CY |
736 | *** Emacs may ask for confirmation before opening a non-existent file |
737 | or buffer. By default, Emacs requests confirmation if you type RET | |
738 | immediately after TAB, and the resulting input is not an existing file | |
739 | or buffer; this usually happens when the minibuffer input did not | |
740 | complete far enough and you entered RET by mistake. In that case, | |
741 | Emacs puts the message "[Confirm]" in the minibuffer; type RET again | |
742 | to create the file or buffer. | |
743 | ||
744 | The new variable confirm-nonexistent-file-or-buffer determines whether | |
745 | Emacs asks for confirmation. The default value is `after-completion'. | |
746 | If you change it to t, Emacs always asks for confirmation; if you | |
747 | change it to nil, Emacs never asks for confirmation. | |
16e82271 | 748 | |
aea75a87 CY |
749 | *** The rules for performing completion have been changed. |
750 | When generating completion alternatives, Emacs now takes the | |
751 | minibuffer text after point, if any, into account: this text is | |
752 | treated as a substring of the remaining part of the completion | |
753 | alternative (i.e., the part not matched by the minibuffer text before | |
754 | point). If no completion alternatives are found this way, Emacs | |
755 | attempts to perform partial-completion. If still no completion | |
756 | alternatives are found, we fall back on the Emacs 22 rules for | |
757 | performing completion. | |
758 | ||
759 | The new variable `completion-styles' can be customized to choose your | |
760 | favorite completion style. | |
16e82271 | 761 | |
d47a29c1 JL |
762 | *** When M-n in the minibuffer reaches the end of the list of defaults, |
763 | it adds the completion list to the end, so next M-n continues putting | |
764 | completion items to the minibuffer. The same principle applies to | |
765 | incremental search commands as well: C-s or C-M-s starts searching | |
766 | the default values and after the end of defaults they continue | |
767 | searching minibuffer completion items. | |
16e82271 | 768 | |
09e18d03 | 769 | *** Minibuffer input of shell commands now comes with completion. |
16e82271 | 770 | |
09e18d03 CY |
771 | *** In the `C-x d' (Dired) prompt, typing M-n gives the visited file |
772 | name of the current buffer. | |
dc2f6c05 | 773 | |
09e18d03 CY |
774 | *** In the M-! (shell-command) prompt, M-n provides some default commands. |
775 | These are guessed using the file extension of the current file, based | |
776 | on the file-handlers specified in the operating system's `mailcap' | |
777 | file. The ! command in Dired (dired-do-shell-command) works | |
778 | similarly, using the file displayed on the current line. | |
117907d4 JL |
779 | |
780 | *** A list of regexp default values is available via M-n for `occur', | |
781 | `keep-lines', `flush-lines' and `how-many'. This list includes the active | |
4f75e082 JL |
782 | region in transient-mark-mode, the word under the cursor, the last Isearch |
783 | regexp, the last Isearch string and the last replacement regexp. | |
16e82271 | 784 | |
3353f870 CY |
785 | *** When enable-recursive-minibuffers is non-nil, operations which use |
786 | switch-to-buffer (such as C-x b and C-x C-f) do not fail any more when | |
787 | used in a minibuffer or a dedicated window. Instead, they fallback on | |
788 | using pop-to-buffer, which will use some other window. This change | |
789 | has no effect when enable-recursive-minibuffers is nil (the default). | |
16e82271 | 790 | |
4f75e082 JL |
791 | *** Isearch started in the minibuffer searches in the minibuffer history. |
792 | Reverse Isearch commands (C-r, C-M-r) search in previous minibuffer | |
793 | history elements, and forward Isearch commands (C-s, C-M-s) search in | |
297b8ccd JL |
794 | next history elements. When the reverse search reaches the first history |
795 | element, it wraps to the last history element, and the forward search | |
796 | wraps to the first history element. When the search is terminated, the | |
797 | history element containing the search string becomes the current. | |
16e82271 | 798 | |
6c897494 CY |
799 | *** The variable read-file-name-completion-ignore-case overrides |
800 | completion-ignore-case for file name completion. | |
16e82271 | 801 | |
6c897494 CY |
802 | *** The variable read-buffer-completion-ignore-case overrides |
803 | completion-ignore-case for buffer name completion. | |
16e82271 | 804 | |
3307af6c CY |
805 | *** The new command `minibuffer-force-complete' chooses one of the |
806 | possible completions, rather than stopping at the common prefix. | |
16e82271 | 807 | |
3307af6c CY |
808 | *** If `completion-auto-help' is `lazy', Emacs shows the completions |
809 | buffer only on the second attempt to complete. This was already | |
810 | supported in `partial-completion-mode'. | |
6c897494 | 811 | |
505d8756 | 812 | ** Face changes |
16e82271 | 813 | |
b350bdf2 CY |
814 | *** S-down-mouse-1 now pops up a menu for changing the font and text |
815 | size of the default face in the current buffer. The face is changed | |
133c4dc5 | 816 | via face remapping (see Lisp changes, below). |
16e82271 | 817 | |
5f9e21a9 CY |
818 | *** New commands to change the default face size in the current buffer. |
819 | To increase it, type `C-x C-+' or `C-x C-='. To decrease it, type | |
820 | `C-x C--'. To restore the default (global) face size, type `C-x C-0'. | |
d59f7c45 CY |
821 | These work via Text Scale mode, a new minor mode. |
822 | ||
823 | The final key in the above commands may be repeated without the | |
824 | leading `C-x', e.g. `C-x C-= C-= C-=' increases the face height by | |
825 | three steps. Each step scales the height of the default face by the | |
826 | value of the variable `text-scale-mode-step'. | |
827 | ||
60959d23 CY |
828 | *** The commands buffer-face-mode and buffer-face-set can be used to |
829 | remap the default face in the current buffer. See "Buffer Face mode", | |
830 | under New Modes and Packages. | |
f20186fd | 831 | |
09e18d03 | 832 | ** Primary selection changes |
16e82271 | 833 | |
b350bdf2 CY |
834 | *** You can disable kill ring commands from accessing the primary |
835 | selection by setting `x-select-enable-primary' to nil. | |
2e282009 | 836 | |
697f6b43 CY |
837 | ** Continuation lines can now be wrapped at word boundaries |
838 | (word-wrapping). This is controlled by the new per-buffer variable | |
839 | `word-wrap'. Word wrapping does not take place if continuation lines | |
840 | are not shown, e.g. if truncate-lines is non-nil. The most convenient | |
841 | way to enable word-wrapping is using the new minor mode Visual Line | |
842 | mode; in addition to setting `word-wrap' to t, this rebinds some | |
843 | editing commands to work on screen lines rather than text lines. See | |
844 | New Modes and Packages, below. | |
85b1de32 | 845 | |
463c6766 | 846 | ** Window management changes |
16e82271 | 847 | |
463c6766 CY |
848 | *** truncate-partial-width-windows now accepts integer values, which |
849 | specify a minimum window width for partial-width windows, below which | |
7d09b7a6 | 850 | lines are truncated. The default has been changed to 50. |
463c6766 CY |
851 | |
852 | *** The new command balance-windows-area balances windows both | |
853 | vertically and horizontally. | |
16e82271 | 854 | |
8f5cee6a MR |
855 | *** pop-to-buffer now always sets input focus when the popped-to window |
856 | is on a different frame. | |
857 | ||
09e18d03 | 858 | ** Miscellaneous changes: |
16e82271 | 859 | |
09e18d03 CY |
860 | *** C-l is bound to the new command recenter-top-bottom, rather than recenter. |
861 | This moves the current line to window center, top and bottom on | |
cdc0338e | 862 | successive invocations. |
16e82271 | 863 | |
09e18d03 | 864 | *** scroll-preserve-screen-position also preserves the column position. |
16e82271 | 865 | |
09e18d03 CY |
866 | *** If `yank-pop-change-selection' is t, rotating the kill ring also |
867 | updates the selection or clipboard to the current yank, just as M-w | |
868 | would do so with the text it copies to the kill ring. | |
16e82271 | 869 | |
09e18d03 CY |
870 | *** C-M-% now shows replacement as it would look in the buffer, with |
871 | `\N' and `\&' substituted according to the match. Old behavior can be | |
872 | restored by customizing `query-replace-show-replacement'. | |
873 | ||
874 | *** The command shell prompts for the default directory, when it is | |
875 | called with a prefix and the default directory is a remote file name. | |
876 | This is because some file name handlers (like ange-ftp) are not able to | |
877 | run processes remotely. | |
16e82271 | 878 | |
09e18d03 CY |
879 | *** The new command kill-matching-buffers kills buffers whose name |
880 | matches a regexp. | |
16e82271 | 881 | |
ae98e41f CY |
882 | *** The value of comment-style now defaults to `indent'. |
883 | Thefore, comment-start markers are inserted at the current indentation | |
884 | of the region to comment, rather than the leftmost column. | |
16e82271 | 885 | |
b350bdf2 CY |
886 | *** The new commands `pp-macroexpand-expression' and |
887 | `pp-macroexpand-last-sexp' pretty-print macro expansions. | |
16e82271 | 888 | |
018a960d EZ |
889 | *** The new command `set-file-modes' allows to set file's mode bits. |
890 | The mode bits can be specified in symbolic notation, like with GNU | |
e6979067 DN |
891 | Coreutils, in addition to an octal number. `chmod' is a new |
892 | convenience alias for this function. | |
d334fa1e | 893 | |
d2c52e26 EZ |
894 | *** `next-error-recenter' specifies how next-error should recenter the |
895 | visited source file. Its value can be a number (for example, 0 for | |
896 | top line, -1 for bottom line), or nil for no recentering. | |
16e82271 | 897 | |
c594dbfa CY |
898 | *** When typing in a password in the echo area, C-y yanks the current |
899 | kill into the password. | |
16e82271 | 900 | |
e02ec85e EZ |
901 | *** Tooltip frame parameters `font' and `color' in `tooltip-frame-parameters' |
902 | are ignored. Customize the `tooltip' face instead. | |
16e82271 | 903 | |
53374291 | 904 | *** `mkdir' is a new convenience alias for `make-directory'. |
09e18d03 CY |
905 | \f |
906 | * New Modes and Packages in Emacs 23.1 | |
e11910e2 GM |
907 | |
908 | ** Auto Composition Mode is a minor mode that composes characters | |
909 | automatically when they are displayed. It is globally on by default. | |
910 | It uses `auto-composition-function' (default `auto-compose-chars'). | |
911 | ||
09e18d03 | 912 | ** Bubbles, a new game, is similar to SameGame. |
60959d23 CY |
913 | |
914 | ** Buffer Face mode is a minor mode for remapping the default face in | |
915 | the current buffer. The variable `buffer-face-mode-face' specifies | |
916 | the face to remap to. The command `buffer-face-set' prompts for a | |
917 | face name, sets `buffer-face-mode-face' to it, and enables | |
918 | buffer-face-mode. See "Face changes", under Editing Changes, for a | |
919 | description of face remapping. | |
920 | ||
18e4b9bd JL |
921 | ** butterfly flips the desired bit on the drive platter. |
922 | See http://xkcd.com/378/ | |
f6b26818 | 923 | |
7ef39c6e GM |
924 | ** bug-reference.el provides clickable links to bug reports. |
925 | ||
09e18d03 CY |
926 | ** dbus.el provides D-Bus language bindings. |
927 | D-Bus is an inter-process communication mechanism for applications | |
b350bdf2 | 928 | residing on the same host. See the manual for details. |
09e18d03 | 929 | |
85c78c0f | 930 | ** DocView mode allows viewing of PDF, PostScript and DVI documents. |
b350bdf2 CY |
931 | One can also search for a regular expression in the document. For |
932 | details, see the commentary in doc-view.el. | |
09e18d03 | 933 | |
4545a339 CY |
934 | PDF and DVI files are now opened in Doc View mode by default. |
935 | ||
936 | In Postcript mode, C-c C-c launches Doc View minor mode for viewing | |
937 | the postscript file. | |
5ed3edfa | 938 | |
b350bdf2 CY |
939 | ** EasyPG provides an interface to the GNU Privacy Guard (GnuPG). |
940 | It includes a GnuPG keyring browser, cryptographic operations on | |
941 | regions and files, and automatic encryption of *.gpg files. For | |
942 | details, see the EasyPG Assistant User's Manual. | |
09e18d03 CY |
943 | |
944 | ** json.el is a library for parsing and generating JSON | |
945 | (JavaScript Object Notation), a lightweight data-interchange format. | |
946 | ||
947 | ** linum.el is a new minor mode to display line numbers for the | |
948 | current buffer. | |
949 | ||
4b4eb083 CY |
950 | ** mairix.el is an interface to mairix, a free tool for indexing and |
951 | searching locally stored mail. It allows you to query mairix and | |
952 | display the search results with Rmail, Gnus and VM. Note that there | |
953 | is an existing Gnus back end, nnmairix.el, which should be used with | |
954 | Maildir/MH setups. | |
955 | ||
e94d0645 | 956 | ** minibuffer-depth-indicate-mode shows the minibuffer depth in the prompt. |
09e18d03 CY |
957 | |
958 | ** nXML Mode | |
959 | This is a new mode for editing XML documents. It allows a schema to | |
960 | be associated with the XML document being edited, using Relax NG as | |
961 | the schema language. The schema is used to provide two key features: | |
962 | ||
963 | *** Continuous validation. nXML validates as you type, highlighting | |
964 | any invalid parts of your document. | |
965 | ||
966 | *** Completion. nXML can assist you in entering an element name, | |
967 | attribute name or data value by using information about what is | |
968 | allowed by the schema in that context. | |
969 | ||
efdd80c6 DN |
970 | ** proced.el provides a Dired-like interface for operating on |
971 | processes. Proced makes an Emacs buffer containing a listing of the | |
972 | current processes. You can use the normal Emacs commands to move | |
973 | around in this buffer, and special Proced commands to operate on the | |
974 | processes listed. It is currently only functional on GNU/Linux, | |
975 | MS-Windows and Solaris. | |
09e18d03 CY |
976 | |
977 | ** Remember Mode is a mode for jotting down things to remember. | |
978 | Notes can be saved to a Diary file. For details, see the Remember | |
979 | Manual. | |
980 | ||
b1c3a827 | 981 | ** RST mode is a major mode for editing reStructuredText files. |
c2d0b538 | 982 | |
17a937cc CY |
983 | ** Ruby mode is a major mode for Ruby files. |
984 | ||
12f165e9 CY |
985 | ** Visual Line mode provides support for editing by visual lines. |
986 | It turns on word-wrapping in the current buffer, and rebinds C-a, C-e, | |
987 | and C-k to commands that operate by visual lines instead of logical | |
988 | lines. This is a more reliable replacement for longlines-mode. | |
697f6b43 CY |
989 | This can also be turned on using the menu bar, via |
990 | Options -> Line Wrapping in this Buffer -> Word Wrap | |
12f165e9 | 991 | |
0c68a24b MA |
992 | ** xesam.el is an implementation of Xesam, an interface to (desktop) |
993 | search engines like Beagle, Strigi, and Tracker. The Xesam API | |
994 | requires D-Bus for communication. | |
995 | ||
09e18d03 CY |
996 | ** zeroconf.el offers service discovery and service publishing |
997 | interfaces according to the zeroconf specification. It communicates | |
998 | with Avahi, a zeroconf implementation, via D-Bus messages on systems | |
999 | which have installed this software. | |
1000 | ||
d332a7a4 GM |
1001 | ** There is a new `whitespace' package. |
1002 | (The pre-existing one has been renamed to `old-whitespace'.) | |
1003 | Now, besides reporting bogus blanks, the whitespace package has a | |
1004 | minor mode and a global minor mode to visualize blanks (TAB, (HARD) | |
1005 | SPACE and NEWLINE). The visualization is made via faces and/or display | |
1006 | table. It can also indicate lines that extend beyond a given column, | |
1007 | trailing blanks, and empty lines at the start or end of a buffer. | |
1008 | See `whitespace-style' for more details. The `whitespace-action' option | |
1009 | specifies what to do when a buffer is visited, killed, or written. | |
4e5a8be9 | 1010 | |
09e18d03 CY |
1011 | \f |
1012 | * Changes in Specialized Modes and Packages in Emacs 23.1 | |
1013 | ||
1014 | ** Abbrev has been rewritten in Elisp and extended with more flexibility. | |
16e82271 | 1015 | |
e047f448 | 1016 | *** New functions: abbrev-get, abbrev-put, abbrev-table-get, abbrev-table-put, |
a3709a8c | 1017 | abbrev-table-p, abbrev-insert, abbrev-table-menu. |
16e82271 | 1018 | |
e047f448 | 1019 | *** Special hook `abbrev-expand-functions' obsoletes `pre-abbrev-expand-hook'. |
16e82271 | 1020 | |
e047f448 SM |
1021 | *** `make-abbrev-table', `define-abbrev', `define-abbrev-table' all take |
1022 | extra arguments for arbitrary properties. | |
16e82271 | 1023 | |
e047f448 | 1024 | *** New variable `abbrev-minor-mode-table-alist'. |
16e82271 | 1025 | |
e047f448 | 1026 | *** `local-abbrev-table' can hold a list of abbrev-tables. |
16e82271 | 1027 | |
e047f448 | 1028 | *** Abbrevs have now the following special properties: |
79415279 | 1029 | `:count', `:system', `:enable-function', `:case-fixed'. |
16e82271 | 1030 | |
e047f448 SM |
1031 | *** Abbrev-tables have now the following special properties: |
1032 | `:parents', `:case-fixed', `:enable-function', `:regexp', | |
1033 | `abbrev-table-modiff'. | |
1034 | ||
09e18d03 | 1035 | ** Apropos |
16e82271 | 1036 | |
09e18d03 | 1037 | *** `apropos-library' describes the elements defined in a given library. |
16e82271 | 1038 | |
09e18d03 | 1039 | *** Set `apropos-compact-layout' is you want a more compact (but wider) layout. |
0253fffa | 1040 | |
09e18d03 | 1041 | ** Archive Mode has basic support to browse Rar archives. |
dfa2fb2a CY |
1042 | Note, however, that the free version of the unrar command only handles |
1043 | versions 1 and 2 of the Rar format. | |
0253fffa | 1044 | |
09e18d03 | 1045 | ** BibTeX mode |
bafbec39 | 1046 | |
09e18d03 | 1047 | *** New command `bibtex-initialize' (re)initializes BibTeX buffers. |
bafbec39 | 1048 | |
09e18d03 CY |
1049 | *** New `bibtex-entry-format' options `whitespace', `braces', and |
1050 | `string', disabled by default. | |
12bbb989 | 1051 | |
09e18d03 CY |
1052 | *** New variable `bibtex-cite-matcher-alist' contains rules to |
1053 | identify cited keys in BibTeX entries, used by `bibtex-find-crossref'. | |
9097e8af | 1054 | |
09e18d03 | 1055 | *** Command `bibtex-url' allows multiple URLs per entry. |
4c24d241 | 1056 | |
3aa8040c KF |
1057 | ** Bookmarks |
1058 | ||
1059 | *** bookmark.el saves bookmarks in a pre-Emacs-23-incompatible file format | |
1060 | bookmark.el can read a .emacs.bmk file saved by an older Emacs, but an | |
1061 | older Emacs cannot read one saved by Emacs 23. | |
1062 | ||
09e18d03 | 1063 | ** Calendar and diary |
320bc739 | 1064 | |
09e18d03 CY |
1065 | *** There is a new date style, `iso', essentially year/month/day. |
1066 | The variable `european-calendar-style' is obsolete - use `calendar-date-style'. | |
1067 | Similarly, the commands `american-calendar' and `european-calendar' | |
1068 | should be replaced by `calendar-set-date-style'. | |
c3bb6fdb | 1069 | |
09e18d03 CY |
1070 | *** The calendar namespace has been rationalized. |
1071 | All functions and variables now begin with a `calendar-', `diary-', or | |
1072 | `holiday-' prefix. The various calendar systems have secondary | |
1073 | prefixes, eg `calendar-french-'. The old names you are likely to use | |
1074 | directly still exist, for the time being, as aliases, but please start | |
1075 | using the new names. | |
1076 | ||
e889393b GM |
1077 | *** The whitespace in the calendar layout can be customized. |
1078 | See the variables: | |
1079 | calendar-left-margin, calendar-intermonth-spacing, calendar-column-width, | |
1080 | calendar-day-header-width, and calendar-day-digit-width. | |
1081 | ||
1082 | *** Text (e.g. ISO weeks) can be displayed between the calendar months. | |
1083 | See the variables calendar-intermonth-header and calendar-intermonth-text. | |
1084 | ||
09e18d03 CY |
1085 | *** The function `holiday-chinese' computes holidays on the Chinese calendar. |
1086 | It has been used to add items to the list `holiday-oriental-holidays'. | |
1087 | ||
1088 | *** `diary-remind' accepts a negative number -DAYS as a shorthand for | |
1089 | the list (1 2 ... DAYS). | |
24cdde13 | 1090 | |
a6b85944 CY |
1091 | ** Change Log mode |
1092 | ||
1093 | *** The new command C-c C-f (change-log-find-file) finds the file | |
1094 | associated with the current log entry. | |
1095 | ||
1096 | *** The new command C-c C-c (change-log-goto-source) goes to the | |
1097 | source code associated with a log entry. | |
1098 | ||
76be286d | 1099 | ** Compile and grep modes |
16e82271 | 1100 | |
76be286d DN |
1101 | *** The mode-line entry for the *compilation* and *grep* buffer is color coded. |
1102 | It has different colors for to show that: (a) the command is still | |
1103 | running, (b) successful completion, (c) error. | |
16e82271 | 1104 | |
76be286d | 1105 | *** compilation-auto-jump-to-first-error tells `compile' to jump to |
813fb3fe | 1106 | the first error encountered during compilations. |
16e82271 | 1107 | |
194894cb CY |
1108 | *** compilation-scroll-output accepts a new value, `first-error', which |
1109 | says to stop auto scrolling at the first error that occurs. | |
16e82271 | 1110 | |
0b22a5e1 | 1111 | *** The `cc' alias for C++ files in `grep-file-aliases' has been |
2e538385 | 1112 | improved. `hh' can be used to match C++ header files and `cchh' both |
0b22a5e1 DN |
1113 | C++ sources and headers. |
1114 | ||
d332a7a4 GM |
1115 | ** Copyright |
1116 | ||
1117 | *** You can specify your copyright holders' names. | |
1118 | Only copyright lines with holders matching `copyright-names-regexp' are | |
1119 | considered for update. | |
1120 | ||
1121 | *** Copyrights can be at the end of the buffer. | |
1122 | This is controlled by `copyright-at-end-flag' (used by, e.g., change-log-mode). | |
1123 | ||
09e18d03 | 1124 | ** Custom |
16e82271 | 1125 | |
09e18d03 | 1126 | *** defcustom accepts new keyword arguments, `:safe' and `:risky', which |
b68769f2 GM |
1127 | set a variable's `safe-local-variable' and `risky-local-variable' property. |
1128 | ||
09e18d03 | 1129 | ** Diff mode |
16e82271 | 1130 | |
09e18d03 CY |
1131 | *** diff-refine-hunk highlights word-level details of changes in a diff hunk. |
1132 | It's used automatically as you move through hunks, see | |
7381be9d | 1133 | diff-auto-refine-mode. It is bound to `C-c C-b'. |
16e82271 | 1134 | |
09e18d03 CY |
1135 | *** diff-add-change-log-entries-other-window iterates through the diff |
1136 | buffer and tries to create ChangeLog entries for each change. | |
1137 | It is bound to `C-x 4 A'. | |
16e82271 | 1138 | |
ac7020b3 DN |
1139 | *** Turning on `whitespace-mode' in a diff buffer will show trailing |
1140 | whitespace problems in the modified lines. | |
d332a7a4 | 1141 | |
71554a21 | 1142 | ** Dired |
16e82271 | 1143 | |
71554a21 JL |
1144 | *** In Dired, C-x C-q now runs the command wdired-change-to-wdired-mode, |
1145 | and C-x C-q in wdired-mode exits it with asking a question about | |
1146 | saving changes. | |
16e82271 | 1147 | |
d1949cd5 JL |
1148 | *** `&' runs the command `dired-do-async-shell-command' that executes |
1149 | the command asynchronously without the need to manually add ampersand | |
1150 | to the end of the command. Its output appears in the buffer `*Async Shell | |
1151 | Command*'. | |
16e82271 | 1152 | |
6d9f0d00 | 1153 | *** `M-s f C-s' and `M-s f M-C-s' run Isearch that matches only at file names. |
2cb5f8ed JL |
1154 | When a new user option `dired-isearch-filenames' is t, then even ordinary |
1155 | Isearch started with `C-s' and `C-M-s' matches only at file names in the | |
1156 | Dired buffer. When `dired-isearch-filenames' is `dwim' then activation of | |
1157 | file name Isearch depends on the position of point - if point is on a file | |
1158 | name initially, then Isearch matches only file names, otherwise it matches | |
1159 | everywhere in the Dired buffer. You can toggle file names matching on or | |
1160 | off by typing `M-s f' in Isearch mode. | |
16e82271 | 1161 | |
cc3236e1 JL |
1162 | *** `M-s a C-s' and `M-s a M-C-s' run multi-file Isearch on the marked files. |
1163 | They visit the first marked file in the sequence and display the usual Isearch | |
1164 | prompt for a string or a regexp where all Isearch commands are available. | |
16e82271 | 1165 | |
71554a21 JL |
1166 | *** `Q' in Dired provides two new keys for multi-file replacement. |
1167 | The upper case key `Y' replaces all remaining matches in all remaining files | |
1168 | with no more questions. The upper case key `N' stops doing replacements | |
1169 | in the current file and skips to the next file. These multi-file keys | |
1170 | are available for all commands that use `tags-query-replace' | |
1171 | including `dired-do-query-replace-regexp', `vc-dir-query-replace-regexp', | |
1172 | `reftex-query-replace-document'. | |
1173 | ||
09e18d03 | 1174 | ** Fortran |
16e82271 | 1175 | |
77a00355 GM |
1176 | *** The line length of fixed-form Fortran is not fixed at 72 any more. |
1177 | Customize the variable `fortran-line-length' to change it. | |
117d3cc5 | 1178 | |
09e18d03 CY |
1179 | *** In Fortran mode, M-; is now bound to the standard comment-dwim, |
1180 | rather than fortran-indent-comment. | |
76be286d | 1181 | |
09e18d03 | 1182 | *** (The increasingly misnamed) F90 mode supports Fortran 2003 syntax. |
b592c357 | 1183 | |
09e18d03 | 1184 | ** Gnus |
6653c6b7 | 1185 | |
09e18d03 CY |
1186 | *** The Gnus package has been updated |
1187 | There are many news features, bug fixes and improvements; see the file | |
1188 | GNUS-NEWS or the node "No Gnus" in the Gnus manual for details. | |
db86064f | 1189 | |
09e18d03 CY |
1190 | *** In Emacs 23, Gnus uses Emacs' new internal coding system `utf-8-emacs' for |
1191 | saving articles drafts and ~/.newsrc.eld. These file may not be read | |
1192 | correctly in Emacs 22 and below. If you want to Gnus across different Emacs | |
1193 | versions, you may set `mm-auto-save-coding-system' to `emacs-mule'. | |
15947a44 | 1194 | |
540f3092 | 1195 | *** Passwords are consistently loaded through `auth-source' |
6d496c76 TZ |
1196 | Gnus can use `auth-source' for POP and IMAP passwords. Also see that |
1197 | `smtpmail' and `url' support `auth-source' for SMTP and HTTP/HTTPS/RSS | |
1198 | authentication respectively. | |
1199 | ||
09e18d03 | 1200 | ** Help mode |
16e82271 | 1201 | |
09e18d03 CY |
1202 | *** New macro `with-help-window' should set up help windows better |
1203 | than `with-output-to-temp-buffer' with `print-help-return-message'. | |
8f5cee6a | 1204 | |
09e18d03 CY |
1205 | *** New option `help-window-select' permits to customize whether help |
1206 | window shall be automatically selected when invoking help. | |
8f5cee6a | 1207 | |
540f3092 GM |
1208 | *** New variable `help-window-point-marker' permits one to specify a new |
1209 | position for point in help window (for example in `view-lossage'). | |
15947a44 | 1210 | |
09e18d03 | 1211 | ** Isearch |
16e82271 | 1212 | |
4f75e082 JL |
1213 | *** New command `isearch-forward-word' bound globally to `M-s w' starts |
1214 | incremental word search. New command `isearch-toggle-word' bound to the | |
1215 | same key `M-s w' in Isearch mode toggles word searching on or off | |
1216 | while Isearch is active. | |
1217 | ||
1218 | *** New command `isearch-highlight-regexp' bound to `M-s h r' in Isearch | |
1219 | mode runs `highlight-regexp' (`hi-lock-face-buffer') with the current | |
1220 | search string as its regexp argument. The same key `M-s h r' and | |
1221 | other keys on the `M-s h' prefix are bound globally to the command | |
1222 | `highlight-regexp' and other hi-lock commands. | |
16e82271 | 1223 | |
4f75e082 JL |
1224 | *** New command `isearch-occur' bound to `M-s o' in Isearch mode |
1225 | runs `occur' with the current search string. The same key `M-s o' | |
1226 | is bound globally to the command `occur'. | |
16e82271 | 1227 | |
4f75e082 JL |
1228 | *** Isearch can now search through multiple ChangeLog files. |
1229 | When running Isearch in a ChangeLog file, if the search fails, | |
09e18d03 | 1230 | then another C-s tries searching the previous ChangeLog, |
540f3092 | 1231 | if there is one (e.g. going from ChangeLog to ChangeLog.12). |
babc4609 | 1232 | This is enabled if multi-isearch-search is non-nil. |
93a142e1 | 1233 | |
babc4609 | 1234 | *** Two new commands to start Isearch on a list of marked buffers |
cc3236e1 JL |
1235 | for buff-menu.el and ibuffer.el are bound to the keys `M-s a C-s' and |
1236 | `M-s a M-C-s'. | |
16e82271 | 1237 | |
3c241617 CY |
1238 | *** The part of an Isearch that failed to match is highlighted in |
1239 | `isearch-fail' face. | |
5d503af9 | 1240 | |
4f75e082 JL |
1241 | *** `C-h C-h' in Isearch mode displays isearch-specific Help screen, |
1242 | `C-h b' displays all Isearch key bindings, `C-h k' displays the full | |
1243 | documentation of the given Isearch key sequence, `C-h m' displays | |
1244 | documentation of Isearch mode. All the rest Help commands exit Isearch mode | |
09e18d03 | 1245 | and execute their global definitions. |
16e82271 | 1246 | |
09e18d03 CY |
1247 | *** When started in the minibuffer, Isearch searches in the minibuffer |
1248 | history. See `Minibuffer changes', above. | |
2793c9bb | 1249 | |
66863844 | 1250 | ** MH-E |
1e9b0fb2 | 1251 | |
d1d87851 | 1252 | *** Upgraded to MH-E version 8.2. See MH-E-NEWS for details. |
66863844 | 1253 | |
09e18d03 CY |
1254 | ** Python |
1255 | *** The file etc/emacs.py now supports both Python 2 and 3, meaning | |
1256 | that either version can be used as inferior Python by python.el. | |
c5578d5f | 1257 | |
09e18d03 CY |
1258 | *** Python mode now has `pdbtrack' functionality. When using pdb to |
1259 | debug a Python program, pdbtrack notices the pdb prompt and displays | |
1260 | the source file and line that the program is stopped at, much the same | |
1261 | way as gud-mode does for debugging C programs with gdb. | |
2793c9bb | 1262 | |
1e9b0fb2 MA |
1263 | ** Recentf |
1264 | ||
1265 | *** The default value of `recentf-keep' prevents from checking of | |
1266 | remote files, if there is no established connection to the | |
1267 | corresponding remote host. | |
1268 | ||
2d51ab64 GM |
1269 | ** Rmail |
1270 | ||
b55b134f | 1271 | *** Rmail no longer converts the messages to Babyl format. |
33b43245 GM |
1272 | Instead, it uses UNIX mbox format, both on disk and in Rmail buffers, |
1273 | and does conversion and decoding when a message is displayed. | |
b55b134f | 1274 | |
33b43245 | 1275 | The first time you visit an Rmail file in Babyl format, Rmail |
b55b134f EZ |
1276 | automatically converts it to mbox format. This is a one-time |
1277 | conversion, but it can take a few minutes, depending on how fast is | |
1278 | your machine and on the size of the file. You should find the rest of | |
1279 | Rmail usage unaltered. | |
1280 | ||
80d634b8 RS |
1281 | However, M-x set-rmail-inbox-list now lasts only for one session |
1282 | because there is no way to save the list of inbox files in an | |
1283 | mbox-format file. | |
1284 | ||
329a643c GM |
1285 | Also, whereas with Babyl format M-x find-file would switch to Rmail |
1286 | mode, with mbox format this is no longer the case (there being no way | |
bcf3f1f5 GM |
1287 | to add an "-*- rmail-*-" cookie to an mbox file). Use C-u M-x rmail |
1288 | instead. | |
329a643c | 1289 | |
33b43245 GM |
1290 | If you have written any extensions to Rmail, they are likely to need |
1291 | updating. Conceptually, the Rmail buffer that you see is no longer | |
1292 | just a narrowed portion of the whole. So you cannot access the whole | |
1293 | of a message (or message collection) by a simple save-restriction and | |
1294 | widen. Instead, there are two buffers: the rmail-buffer, and the | |
2e538385 | 1295 | rmail-view-buffer. The former is the buffer that you see, the latter |
33b43245 GM |
1296 | is invisible. Most of the time, the invisible `view' buffer contains |
1297 | the full contents of the Rmail file, and the Rmail buffer contains a | |
1298 | decoded copy of the current message (with only a subset of the | |
2e538385 | 1299 | headers). In this state, Rmail is said to be `swapped'. |
2d51ab64 | 1300 | |
33b43245 GM |
1301 | You may find the following functions useful: |
1302 | ||
1303 | `rmail-get-header' and `rmail-set-header' get or set the value of a | |
1304 | message header, whether or not it is currently visible. | |
1305 | ||
1306 | `rmail-apply-in-message' is a general purpose function that calls a | |
1307 | function (with arguments) which you specify on the full text of a given | |
1308 | message. To further narrow to just the headers, search forward for "\n\n". | |
1309 | ||
33b43245 | 1310 | *** The new command `rmail-mime' displays MIME messages. |
2e538385 | 1311 | It is bound to `v' in Rmail buffers and summaries. It displays plain |
33b43245 GM |
1312 | text and multipart messages in a temporary buffer, and offers buttons |
1313 | to save attachments. | |
1314 | ||
763e01c4 EZ |
1315 | *** The command `rmail-redecode-body' no longer accepts the optional arg RAW. |
1316 | Since Rmail now holds messages in their original undecoded form in a | |
1317 | separate buffer, `rmail-redecode-body' no longer encodes the original | |
1318 | message, and therefore there should be no need to avoid encoding it. | |
1319 | ||
80d634b8 RS |
1320 | *** The o command is now `rmail-output'. It is an all-purpose command |
1321 | for copying messages from Rmail and appending them to files. It | |
1322 | handles Babyl-format files as well as mbox-format files, and it | |
1323 | handles both kinds properly when they are visited in Emacs. It always | |
1324 | copies the full headers of the message. | |
1325 | ||
80d634b8 RS |
1326 | *** The C-o command is now `rmail-output-as-seen'. It uses |
1327 | the message as displayed, appending it to an mbox file. | |
1328 | ||
2e538385 GM |
1329 | *** The modified status of the Rmail buffer is reported in the mode-line. |
1330 | Previously, this information was hidden. | |
1331 | ||
9721264a | 1332 | ** TeX modes |
16e82271 | 1333 | |
9721264a MR |
1334 | *** New option latex-indent-within-escaped-parens |
1335 | permits to customize indentation of LaTeX environments delimited | |
1336 | by escaped parens. | |
1337 | ||
09e18d03 | 1338 | ** T-mouse Mode |
16e82271 | 1339 | |
09e18d03 CY |
1340 | *** If the gpm mouse server is running and t-mouse-mode is enabled, |
1341 | Emacs uses a Unix socket in a GNU/Linux console to talk to server, | |
1342 | rather than faking events using the client program mev. This C level | |
1343 | approach provides mouse highlighting and help echoing in the | |
1344 | minibuffer. | |
2793c9bb | 1345 | |
cc213f24 MA |
1346 | ** Tramp |
1347 | ||
1348 | *** New connection methods. | |
1349 | The new methods "plinkx", "plink2", "psftp", "sftp" and "fish" have | |
1350 | been introduced. There are also new so-called gateway methods | |
1351 | "tunnel" and "socks". | |
1352 | ||
cc2fc5a2 MA |
1353 | *** IPv6 addresses. |
1354 | IPv6 addresses are supported now as host names. They must be embedded | |
1355 | in square brackets, like in "/ssh:[::1]:". | |
1356 | ||
cc213f24 | 1357 | *** Multihop syntax has been removed. |
540f3092 | 1358 | The pseudo-method "multi" has been removed. Instead, multi hops |
cc213f24 MA |
1359 | can be specified by the new variable `tramp-default-proxies-alist'. |
1360 | ||
1361 | *** More default settings. | |
1362 | Default values can be set via the variables `tramp-default-user', | |
1363 | `tramp-default-user-alist' and `tramp-default-host'. | |
1364 | ||
1365 | *** Connection information is cached. | |
1366 | In order to reduce connection setup, information about used | |
540f3092 | 1367 | connections is kept persistently in a file. The name of this file is |
cc213f24 MA |
1368 | defined in the variable `tramp-persistency-file-name'. |
1369 | ||
1370 | *** Control of remote processes. | |
1371 | Running processes on a remote host can be controlled by settings in | |
1372 | `tramp-remote-path' and `tramp-remote-process-environment'. | |
1373 | ||
1374 | *** Success of remote copy is checked. | |
1375 | When the variable `file-precious-flag' is set, the success of a remote | |
1376 | file copy is checked via the file's checksum. | |
1377 | ||
7cba69f2 MA |
1378 | *** Passwords can be read from an authentification file. |
1379 | Tramp uses the package `auth-source' to read passwords from a file, if | |
1380 | necessary. | |
1381 | ||
289aee1c | 1382 | ** VC and related modes |
16e82271 | 1383 | |
09e18d03 CY |
1384 | *** VC now supports applying VC operations to a set of files at a time. |
1385 | This enables VC to work much more effectively with changeset-oriented | |
1386 | version-control systems such as Subversion, GNU Arch, Mercurial, Git | |
1387 | and Bzr. VC will now pass a multiple-file commit to these systems as | |
1388 | a single changeset. | |
16e82271 | 1389 | |
09e18d03 | 1390 | *** vc-dir is a new command that displays file names and their VC |
289aee1c DN |
1391 | status. It allows to apply various VC operations to a file, a |
1392 | directory or a set of files/directories. | |
16e82271 | 1393 | |
614677a0 GM |
1394 | *** VC switches are no longer appended, rather the first non-nil value is used. |
1395 | (This was for the most part true in Emacs 22, but was not advertised). | |
1396 | This is because there is an increasing variety of VC systems, and they | |
1397 | do not all accept the same "common" options. For example, a CVS diff | |
1398 | command used to append the values of `vc-cvs-diff-switches', | |
1399 | `vc-diff-switches', and `diff-switches'. Now the first non-nil value | |
1400 | from that sequence is used. The special value `t' means "no switches". | |
16e82271 | 1401 | |
09e18d03 | 1402 | *** Clicking on the VC mode-line entry now pops the VC menu. |
16e82271 | 1403 | |
09e18d03 | 1404 | *** The VC mode-line entry now has a tooltip that explains the VC file status. |
2b69181c DN |
1405 | |
1406 | *** In VC Annotate mode, the key bindings have changed to use lower | |
1407 | case keys instead of the upper case keys used in the past. | |
16e82271 | 1408 | |
09e18d03 CY |
1409 | *** In VC Annotate mode, for VC systems that support changesets, you can |
1410 | see the diff for the whole changeset (not only for the current file) | |
ee0f0556 CY |
1411 | by typing the D key. Using the "Show changeset diff of revision at |
1412 | line" menu entry does the same thing. | |
16e82271 | 1413 | |
e86fa02b | 1414 | *** In VC Annotate mode, you can type v to toggle the annotation visibility. |
16e82271 | 1415 | |
09e18d03 CY |
1416 | *** In VC Annotate mode, you can type f to show the file revision on |
1417 | the current line. | |
16e82271 | 1418 | |
09e18d03 CY |
1419 | *** Asynchronous VC commands display [Waiting...] in the mode-line |
1420 | of the corresponding buffer as long as the asynchronous process is | |
1421 | active. | |
16e82271 | 1422 | |
09e18d03 CY |
1423 | *** Log entries can be modified using the key "e" in log-view. |
1424 | For now only CVS, RCS, SCCS and SVN support this functionality. | |
1425 | This is done by the `modify-change-comment' backend function. | |
16e82271 | 1426 | |
09e18d03 CY |
1427 | *** In log-view-mode, for VC systems that support changesets, you can |
1428 | see the diff for the whole changeset (not only for the current file) | |
1429 | by typing the D key or using the "Changeset Diff" menu entry. | |
16e82271 | 1430 | |
289aee1c DN |
1431 | *** In Log Edit mode, C-c C-d now shows the diff for the files involved. |
1432 | ||
1433 | *** vc-git supports the "git grep" command. | |
16e82271 | 1434 | |
540f3092 | 1435 | *** VC Support for Meta-CVS has been removed for lack of a maintainer able |
09e18d03 | 1436 | to update it to the new VC. |
cf944fa4 | 1437 | |
d15f7b68 GM |
1438 | ** Miscellaneous |
1439 | ||
1440 | *** comint-mode uses `start-file-process' now (see Lisp Changes). | |
cc213f24 MA |
1441 | If `default-directory' is a remote file name, subprocesses are started |
1442 | on the corresponding remote system. | |
16e82271 | 1443 | |
09e18d03 CY |
1444 | *** Eldoc highlights the function argument under point |
1445 | with the face `eldoc-highlight-function-argument'. | |
16e82271 | 1446 | |
09e18d03 | 1447 | *** In Etags, the --members option is now the default. |
fffa137c | 1448 | Use --no-members if you want the old default behavior of not tagging |
09e18d03 | 1449 | struct members in C, members variables in C++ and variables in PHP. |
16e82271 | 1450 | |
09e18d03 CY |
1451 | *** The `gdb' command only works with the graphical interface now. |
1452 | Use `gud-gdb' if you want the (old) text command mode. | |
1453 | ||
1454 | *** goto-address.el provides two new minor modes, goto-address-mode and | |
1455 | goto-address-prog-mode, which buttonize URLS and email addresses. | |
1456 | ||
1457 | *** The new command `eshell/info' runs info in an eshell buffer. | |
3cf86f00 | 1458 | |
4d1e89e3 GM |
1459 | *** The new variable `ffap-rfc-directories' specifies a list of local |
1460 | directories in which `ffap-rfc' will first search for RFCs. | |
16e82271 | 1461 | |
09e18d03 CY |
1462 | *** hide-ifdef-mode allows shadowing ifdef-blocks instead of hiding them. |
1463 | See option `hide-ifdef-shadow' and function `hide-ifdef-toggle-shadowing'. | |
1464 | ||
1465 | *** `icomplete-prospects-height' now supercedes `icomplete-prospects-length'. | |
1466 | ||
1467 | *** Info displays breadcrumbs in the header of the page. | |
1468 | See Info-breadcrumbs-depth to control it. | |
1469 | ||
d2c98acc | 1470 | *** net-utils has an `iwconfig' command, similar to the existing `ifconfig'. |
b7bfcc8a | 1471 | It is used to configure wireless interfaces. |
d2c98acc | 1472 | |
09e18d03 CY |
1473 | *** The pcmpl-unix package supports hostname completion for ssh and scp. |
1474 | ||
1475 | *** sgml-electric-tag-pair-mode lets you simultaneously edit matched tag pairs. | |
1476 | ||
1477 | *** smerge-refine highlights word-level details of changes in conflict. | |
7381be9d TTN |
1478 | It's used automatically as you move through conflicts, see |
1479 | smerge-auto-refine-mode. | |
09e18d03 CY |
1480 | |
1481 | *** talk.el has been extended for multiple tty support. | |
1482 | ||
1483 | *** A new command `display-time-world' has been added to the Time | |
1484 | package. It creates a buffer with an updating time display using | |
1485 | several time zones. | |
1486 | ||
1487 | *** The appearance of superscript and subscript in TeX is more customizable. | |
1488 | See the documentation of the variables: tex-fontify-script, | |
1489 | tex-font-script-display, tex-suscript-height-ratio, and | |
1490 | tex-suscript-height-minimum. | |
1491 | ||
1492 | *** view-remove-frame-by-deleting is now by default t | |
1493 | since users found iconification of view-mode frames distracting. | |
16e82271 | 1494 | |
09e18d03 CY |
1495 | *** WoMan tries to add locale-specific manual page directories to the |
1496 | search path. This can be disabled by setting `woman-locale' to nil. | |
1497 | ||
0bfd685e GM |
1498 | \f |
1499 | * Changes in Emacs 23.1 on non-free operating systems | |
8ab314f9 | 1500 | |
203553fd JPW |
1501 | ** Case is now considered significant in completion on MS-Windows. |
1502 | The default value of `completion-ignore-case' is now nil on | |
1503 | MS-Windows, the same as it is for other operating systems. The | |
1504 | variable doesn't apply to reading a file name -- in that case Emacs | |
1505 | heeds `read-file-name-completion-ignore-case' instead. | |
1506 | ||
672f99b6 JR |
1507 | ** IPv6 is supported on MS-Windows. |
1508 | Emacs now supports IPv6 on Windows XP and later, and earlier versions | |
2660a9da | 1509 | of Windows with third party IPv6 stacks installed. In Emacs 22, IPv6 was |
672f99b6 JR |
1510 | supported on other platforms, but not on Windows due to using the winsock |
1511 | 1.1 header file, even though Emacs was linking to the winsock 2 library. | |
1512 | ||
6e344060 JR |
1513 | ** Busy cursor (hourglass) now displays on MS-Windows. |
1514 | When Emacs is busy, an hourglass mouse cursor is displayed on Windows. | |
2660a9da JR |
1515 | In Emacs 22 only X supported the busy cursor. |
1516 | ||
2660a9da JR |
1517 | ** Battery status is available on MS-Windows |
1518 | Emacs can now display the battery status in the mode-line when enabled with | |
1519 | display-battery-mode or from the Options menu. More verbose battery | |
1520 | information is also available with the command `battery'. In Emacs 22 | |
1521 | battery status was supported only on GNU/Linux and Mac. | |
6e344060 | 1522 | |
3280c5c5 JR |
1523 | ** More keys available on MS-Windows. |
1524 | Keys normally associated with IMEs, and some exotic keys not normally found | |
1525 | on standard keyboards have been given names so they can be bound to functions | |
1526 | inside Emacs. If there are keys on your keyboard that have not been exposed | |
1527 | to Emacs in the past, try C-h k to see if they are available now. | |
1528 | ||
1529 | Emacs can now bind functions to the extra buttons for media player and | |
1530 | browser control present on some keyboards. These buttons are disabled | |
1531 | by default, since enabling them prevents their system-wide use when | |
1532 | Emacs has focus. To enable them, set the variable | |
0caa490b | 1533 | w32-pass-multimedia-buttons to nil. See the doc string of that variable |
3280c5c5 | 1534 | for the list of extra keys that are available. |
2660a9da | 1535 | |
4a263588 | 1536 | ** BDF fonts no longer supported on MS-Windows. |
2e538385 | 1537 | The font backend was completely rewritten for this release. The focus |
4a263588 JR |
1538 | on Windows has been getting acceptable performance and full unicode |
1539 | support, including complex script shaping for native Windows fonts. A | |
1540 | rewrite of the BDF font support has not happened due to lack of time | |
1541 | and developers. If demand still exists for such a backend even with | |
1542 | the improved language support for native Windows fonts, future | |
1543 | development in this direction will most likely be based on the | |
1544 | freetype library, giving access to a wider range of font formats. | |
1545 | ||
0bfd685e GM |
1546 | \f |
1547 | * Incompatible Lisp Changes in Emacs 23.1 | |
8ec65cd7 | 1548 | |
fd9440c5 | 1549 | ** Variables cannot be both buffer-local and frame-local any more. |
a9b08254 | 1550 | |
fc944cd4 | 1551 | ** `functionp' returns nil for special forms. |
65f81a0b | 1552 | I.e., it only returns t for objects that can be passed to `funcall'. |
fc944cd4 | 1553 | |
d82c3d44 GM |
1554 | ** The behavior of map-char-table has changed. It may call the |
1555 | specified function with a cons (FROM . TO) as a key if characters in | |
1556 | that range have the same value. | |
1557 | ||
b350bdf2 | 1558 | ** Process changes |
16e82271 | 1559 | |
b350bdf2 | 1560 | *** The function `dired-call-process' has been removed. |
16e82271 | 1561 | |
b350bdf2 CY |
1562 | *** The multibyteness of process filters is now determined by the |
1563 | coding-system used for decoding. The functions | |
1564 | `process-filter-multibyte-p' and `set-process-filter-multibyte' are | |
1565 | obsolete. | |
03605a28 | 1566 | |
777ea444 | 1567 | ** The variable `byte-compile-warnings' can now be a list starting with `not', |
0caa490b | 1568 | meaning to disable the specified warnings. The meaning of this list |
777ea444 | 1569 | may therefore be the reverse of what you expect (of course, this is |
0caa490b | 1570 | only an issue if you make use of the new `not' syntax). Rather than |
777ea444 GM |
1571 | checking/manipulating elements directly, use the new functions |
1572 | `byte-compile-warning-enabled-p', `byte-compile-disable-warning', and | |
1573 | `byte-compile-enable-warning.' | |
1574 | ||
69df9d6d GM |
1575 | ** `mode-name' is no longer guaranteed to be a string. |
1576 | Use `(format-mode-line mode-name)' to ensure a string value. | |
1577 | ||
53ed745a CY |
1578 | ** The function x-font-family-list has been removed. |
1579 | Use the new function font-family-list (see Lisp Changes, below). | |
1580 | ||
b350bdf2 CY |
1581 | ** Internationalization changes |
1582 | ||
1583 | *** The value of the function `charset-id' is now always 0. | |
16e82271 | 1584 | |
b350bdf2 CY |
1585 | *** The functions `register-char-codings' and `coding-system-spec' |
1586 | have been removed. | |
16e82271 | 1587 | |
b350bdf2 CY |
1588 | *** The cpXXX coding systems are now supported automatically. |
1589 | The functions cp-...-codepage, which you had to use in Emacs 22 to | |
1590 | enable support for these coding systems, have been deleted. | |
16e82271 | 1591 | |
b350bdf2 | 1592 | *** The following features have been removed. They were used for |
85a1f98d GM |
1593 | displaying various scripts with specific fonts, and are no longer |
1594 | needed now that OpenType font support is available: | |
1595 | ||
b350bdf2 | 1596 | **** `devanagari' and `devan-util', and all associated devanagari-* and |
85a1f98d GM |
1597 | dev-* functions and variables (formerly used for Devanagari script). |
1598 | ||
b350bdf2 | 1599 | **** `kannada' and `knd-util', and all associated kannada-* and knd-* |
85a1f98d GM |
1600 | functions and variables (formerly used for Kannada script). |
1601 | ||
b350bdf2 | 1602 | **** `malayalam' and `mlm-util', and all associated malayalam-* and |
85a1f98d GM |
1603 | mlm-* functions and variables (formerly used for Malayalam script). |
1604 | ||
b350bdf2 | 1605 | **** `tamil' and `tml-util, and all associated tamil-* and tml-* |
85a1f98d | 1606 | functions and variables (formerly used for Tamil script). |
6a6b4d7d | 1607 | |
2d2db320 KH |
1608 | *** The meaning of NAME argument of `set-fontset-font' is changed. |
1609 | Previously nil is accepted as the default fontset. Now, nil is for | |
1610 | the fontset of the selected frame and t is for the default fontset. | |
1611 | ||
1612 | *** The meaning of FONTSET argument of `print-fontset' is changed. | |
1613 | Now, nil is for the fontset of the selected frame and t is for the | |
1614 | default fontset. | |
1615 | ||
16e82271 CY |
1616 | ** If a function in write-region-annotate-functions returns with a |
1617 | different buffer current, Emacs no longer kills that buffer | |
1618 | automatically. This behavior existed in previous versions of Emacs, | |
1619 | but was undocumented. To kill a buffer after write-region, give the | |
1620 | variable `write-region-post-annotation-function' a buffer-local value | |
1621 | of `kill-buffer'. | |
1622 | ||
55504ada | 1623 | ** The variable temp-file-name-pattern has been removed. |
f4150f61 CY |
1624 | This variable was only used by call-process-region, which now uses |
1625 | temporary-file-directory instead. | |
1626 | ||
52456e59 CY |
1627 | ** The COUNT and SYSTEM-FLAG arguments to define-abbrev have been |
1628 | removed. The function now takes extra arguments for specifying | |
1629 | arbitrary abbrev properties. | |
1630 | ||
7841339b AM |
1631 | ** end-of-defun-function is now guaranteed to work only when called |
1632 | from the start of a defun. It must now leave point exactly at the end | |
1633 | of defun, since `end-of-defun' now itself moves forward over | |
1634 | whitespace after calling it. | |
1635 | ||
0bfd685e GM |
1636 | \f |
1637 | * Lisp Changes in Emacs 23.1 | |
8ab314f9 | 1638 | |
b8afe7e4 EZ |
1639 | ** The new variable `generate-autoload-cookie' controls the magic comment |
1640 | string used by `update-file-autoloads' to find autoloaded forms. The | |
1641 | variable `generated-autoload-file' similarly controls the name of the | |
1642 | file where `update-file-autoloads' writes the calls to `autoload'. | |
1643 | The default values are ";;;###autoload" and `loaddefs.el', | |
1644 | respectively. | |
1645 | ||
a20878b6 | 1646 | ** New primitives `list-system-processes' and `process-attributes' |
5d692341 EZ |
1647 | let Lisp programs access the processes that are running on the local |
1648 | machine. See the doc strings of these functions for more details. | |
1649 | Not all platforms support accessing this information; on those that | |
1650 | don't, these primitives will return nil. | |
1651 | ||
b350bdf2 CY |
1652 | ** New variable `user-emacs-directory'. |
1653 | Use this instead of "~/.emacs.d". | |
43f8b275 | 1654 | |
b350bdf2 CY |
1655 | ** If a local hook function has a non-nil `permanent-local-hook' |
1656 | property, `kill-all-local-variables' does not remove it from the local | |
1657 | value of the hook variable; it remains even if you change major modes. | |
09e18d03 | 1658 | |
b350bdf2 CY |
1659 | ** `frame-inherited-parameters' lets new frames inherit parameters from |
1660 | the selected frame. | |
09e18d03 | 1661 | |
b350bdf2 CY |
1662 | ** New keymap `input-decode-map' overrides like key-translation-map, but |
1663 | applies before function-key-map. Also it is terminal-local contrary to | |
1664 | key-translation-map. Terminal-specific key-sequences are generally added to | |
1665 | this map rather than to function-key-map now. | |
09e18d03 | 1666 | |
b350bdf2 | 1667 | ** `ignore-errors' is now a standard macro (does not require the CL package). |
09e18d03 | 1668 | |
b350bdf2 CY |
1669 | ** `interprogram-paste-function' can now return one string or a list |
1670 | of strings. In the latter case, Emacs puts the second and following | |
1671 | strings on the kill ring. | |
09e18d03 | 1672 | |
b350bdf2 CY |
1673 | ** In `condition-case', a handler can specify "let the debugger run first". |
1674 | You do this by writing `debug' in the list of conditions to be handled, | |
1675 | like this: | |
09e18d03 | 1676 | |
b350bdf2 CY |
1677 | (condition-case nil |
1678 | (foo bar) | |
1679 | ((debug error) nil)) | |
09e18d03 | 1680 | |
b350bdf2 | 1681 | ** clone-indirect-buffer now runs the clone-indirect-buffer-hook. |
09e18d03 | 1682 | |
7841339b AM |
1683 | ** `beginning-of-defun-function' now takes one argument, the count given to |
1684 | `beginning-of-defun'. (N.B. `end-of-defun-function' doesn't take any | |
1685 | arguments.) | |
09e18d03 | 1686 | |
b350bdf2 CY |
1687 | ** `file-remote-p' has new optional parameters IDENTIFICATION and CONNECTED. |
1688 | IDENTIFICATION specifies which part of the remote identifier has to be | |
1689 | returned. With CONNECTED passed non-nil, it is checked whether a | |
1690 | remote connection has been established already. | |
09e18d03 | 1691 | |
b350bdf2 CY |
1692 | ** The new macro `declare-function' suppresses compiler warnings about |
1693 | undefined functions. | |
a1562258 | 1694 | |
b350bdf2 | 1695 | ** Changes to interactive function handling |
8ba31f36 | 1696 | |
b350bdf2 CY |
1697 | *** The new interactive spec code ^ says to first call |
1698 | handle-shift-selection if shift-select-mode is non-nil, before reading | |
1699 | the command arguments. This is used for shift-selection (see above). | |
e2947429 | 1700 | |
b350bdf2 CY |
1701 | *** Built-in functions can now have an interactive specification that |
1702 | is not a prompt string. If the `intspec' parameter of a `DEFUN' | |
1703 | starts with a `(', the string is evaluated as a Lisp form. | |
e2947429 | 1704 | |
b350bdf2 CY |
1705 | *** The interactive-form of a function can be added post-facto via the |
1706 | `interactive-form' symbol property. Mostly useful to add complex | |
1707 | interactive forms to subroutines. | |
d87be1df | 1708 | |
b350bdf2 | 1709 | ** Region changes |
3ae459e5 | 1710 | |
b350bdf2 CY |
1711 | *** Commands should use `use-region-p' to test whether there is |
1712 | an active region that they should operate on. | |
3ae459e5 | 1713 | |
b350bdf2 | 1714 | *** `region-active-p' returns non-nil when Transient Mark mode is |
71b605b8 CY |
1715 | enabled and the mark is active. Most commands that act specially on |
1716 | the active region in Transient Mark mode should use `use-region-p' | |
1717 | instead of `region-active-p', because `use-region-p' obeys the new | |
1718 | user option `use-empty-active-region' (see Editing Changes, above). | |
58555d81 | 1719 | |
b350bdf2 CY |
1720 | *** If a command sets `transient-mark-mode' to (only . OLDVAL), that |
1721 | means to activate transient-mark-mode temporarily, until the next | |
1722 | unshifted point motion command or mark deactivation. Afterwards, | |
1723 | reset transient-mark-mode to the value OLDVAL. The values `only' and | |
1724 | `identity', introduced in Emacs 22, are now deprecated. | |
e5c4079c | 1725 | |
b350bdf2 | 1726 | ** Emacs session information |
13cda5f9 | 1727 | |
b350bdf2 CY |
1728 | *** The new variables `before-init-time' and `after-init-time' record the |
1729 | value of `current-time' before and after Emacs loads the init files. | |
a2bc5bdd | 1730 | |
b350bdf2 | 1731 | *** The new function `emacs-uptime' returns the uptime of an Emacs instance. |
d82c3d44 | 1732 | |
b350bdf2 CY |
1733 | *** The new function `emacs-init-time' returns the duration of the |
1734 | Emacs initialization. | |
50bfa18a | 1735 | |
b350bdf2 | 1736 | ** Changes affecting display-buffer |
16e82271 | 1737 | |
abe8f306 MR |
1738 | *** display-buffer tries to be smarter when splitting windows. |
1739 | The new option split-window-preferred-function lets you specify your own | |
1740 | function to pop up new windows. Its default value split-window-sensibly | |
1741 | can split a window either vertically or horizontally, whichever seems | |
1742 | more suitable in the current configuration. You can tune the behavior | |
1743 | of split-window-sensibly by customizing split-height-threshold and the | |
1744 | new option split-width-threshold. Both options now take the value nil | |
1745 | to inhibit splitting in one direction. Setting split-width-threshold to | |
1746 | nil inhibits horizontal splitting and gets you the behavior of Emacs 22 | |
1747 | in this respect. In any case, display-buffer may now split the largest | |
1748 | window vertically even when it is not as wide as the containing frame. | |
2d105adf | 1749 | |
f691c216 CY |
1750 | *** If pop-up-frames has the value `graphic-only', display-buffer only |
1751 | makes a separate frame on graphic displays. | |
1752 | ||
abe8f306 | 1753 | *** select-frame and set-frame-selected-window have a new optional |
ee434cb1 MR |
1754 | argument NORECORD. If non-nil, this will avoid messing with the order |
1755 | of recently selected windows and the buffer list. | |
205f3a3b | 1756 | |
781459a4 CY |
1757 | ** Window parameters can now be defined. |
1758 | These are analogous to frame parameters, but are associated with | |
1759 | individual windows. | |
16e82271 | 1760 | |
781459a4 CY |
1761 | *** The new functions window-parameters, window-parameter, and |
1762 | set-window-parameter are used to query and set window parameters. | |
1763 | ||
b350bdf2 | 1764 | ** Minibuffer and completion changes |
16e82271 | 1765 | |
b350bdf2 | 1766 | *** A list of default values can be specified for the DEFAULT argument of |
b9694062 JL |
1767 | functions `read-from-minibuffer', `read-string', `read-command', |
1768 | `read-variable', `read-buffer', `completing-read'. Elements of this list | |
1769 | are available for inserting into the minibuffer by typing `M-n'. | |
1770 | For empty input these functions return the first element of this list. | |
1771 | ||
90993beb | 1772 | *** New function `read-regexp' uses the regexp history and some useful |
4f75e082 | 1773 | regexp defaults (string at point, last Isearch/replacement regexp/string) |
90993beb JL |
1774 | via M-n when reading a regexp in the minibuffer. |
1775 | ||
b350bdf2 CY |
1776 | *** minibuffer-local-must-match-filename-map is now named |
1777 | minibuffer-local-filename-must-match-map. | |
66dc1ca2 | 1778 | |
206faa92 CY |
1779 | *** The `require-match' argument to `completing-read' accepts the new |
1780 | values `confirm-only' and `confirm-after-completion'. | |
d03b9b31 | 1781 | |
b350bdf2 | 1782 | ** Search and replacement changes |
16e82271 | 1783 | |
b350bdf2 | 1784 | *** The regexp form \(?<num>:<regexp>\) specifies the group number explicitly. |
16e82271 | 1785 | |
b350bdf2 CY |
1786 | *** New function `match-substitute-replacement' returns the result of |
1787 | `replace-match' without actually using it in the buffer. | |
c60d543d | 1788 | |
b350bdf2 | 1789 | *** The new variable `replace-search-function' determines the function |
80120f13 EZ |
1790 | to use for searching in query-replace and replace-string. The |
1791 | function it specifies is called by `perform-replace' when its 4th | |
1792 | argument is nil. | |
3ae459e5 | 1793 | |
b350bdf2 CY |
1794 | *** The new variable `replace-re-search-function' determines the |
1795 | function to use for searching in `query-replace-regexp', | |
1796 | `replace-regexp', `query-replace-regexp-eval', and | |
80120f13 EZ |
1797 | `map-query-replace-regexp'. The function it specifies is called by |
1798 | `perform-replace' when its 4th argument is non-nil. | |
4f4a84ec | 1799 | |
4f75e082 JL |
1800 | *** New keymap `search-map' bound to `M-s' provides global bindings |
1801 | for search related commands. | |
1802 | ||
1803 | *** New keymap `multi-query-replace-map' contains additonal keys bound | |
71554a21 JL |
1804 | to `automatic-all' and `exit-current' for multi-buffer interactive replacement. |
1805 | ||
b350bdf2 CY |
1806 | *** The variable `inhibit-changing-match-data', if non-nil, prevents |
1807 | the search and match primitives from changing the match data. | |
967b2682 | 1808 | |
3c241617 CY |
1809 | *** New functions `word-search-forward-lax' and `word-search-backward-lax'. |
1810 | These are like `word-search-forward and `word-search-backward', except | |
1811 | that the end of the search string need not match a word boundary, | |
1812 | unless it ends in whitespace. | |
1813 | ||
b350bdf2 | 1814 | ** File handling changes |
8bf5c8a6 | 1815 | |
b350bdf2 CY |
1816 | *** set-file-modes is now interactive and can take the mode value in |
1817 | symbolic notation thanks to auxiliary functions. | |
16e82271 | 1818 | |
291703b5 EZ |
1819 | *** file-local-variables-alist stores an alist of file-local |
1820 | variables defined in the current buffer. | |
1821 | ||
d59f7c45 | 1822 | ** Face-remapping |
16e82271 | 1823 | |
d59f7c45 CY |
1824 | *** Each face can be remapped to a different face definition using the |
1825 | variable `face-remapping-alist'. This is an alist that maps faces to | |
1826 | replacement definitions (which can be face names, lists of face names, | |
1827 | or attribute/value plists. If this variable is buffer-local, the | |
1828 | remapping occurs only in that buffer. | |
1829 | ||
1830 | *** text-scale-mode remaps the default face to a larger or smaller | |
2e538385 | 1831 | size in the current buffer. This feature is used by the Buffer Face |
d59f7c45 CY |
1832 | menu and the new `C-x C-+', `C-x C--', and `C-x C-0' commands (see |
1833 | Editing Changes, above). | |
1834 | ||
1835 | *** New functions: | |
16e82271 | 1836 | |
d59f7c45 CY |
1837 | **** `face-remap-add-relative' adds a face remapping entry to the |
1838 | current buffer. | |
16e82271 | 1839 | |
d59f7c45 CY |
1840 | **** ``face-remap-remove-relative' removes a face remapping entry from |
1841 | the current buffer. | |
16e82271 | 1842 | |
d59f7c45 | 1843 | **** `face-remap-reset-base' restores a face to its global definition. |
16e82271 | 1844 | |
d59f7c45 CY |
1845 | **** `face-remap-set-base' sets the base remapping of a face. |
1846 | ||
85c78c0f | 1847 | ** Process changes |
16e82271 | 1848 | |
b350bdf2 CY |
1849 | *** The new function `start-file-process' is similar to `start-process', |
1850 | but obeys file handlers. The file handler is chosen based on | |
1851 | `default-directory'. The functions `start-file-process-shell-command' | |
1852 | and `process-file-shell-command' are also new; they call internally | |
1853 | `start-file-process' and `process-file', respectively. | |
1854 | ||
1855 | *** The new function `process-lines' executes an external program and | |
1856 | returns its output as a list of lines. | |
63571b5a | 1857 | |
d82c3d44 GM |
1858 | ** Character code, representation, and charset changes. |
1859 | ||
16e82271 CY |
1860 | *** In multibyte buffers and strings, characters are represented by |
1861 | UTF-8 byte sequences. The character code space is now 0x0..0x3FFFFF | |
1862 | with no gap; code points 0x0..0x10FFFF are Unicode characters of the | |
1863 | same code points, while code points 0x3FFF80..0x3FFFFF are raw 8-bit | |
1864 | bytes. | |
d82c3d44 | 1865 | |
16e82271 | 1866 | *** Generic characters no longer exist. |
d82c3d44 | 1867 | |
16e82271 CY |
1868 | *** The concept of a charset has changed. A single character may |
1869 | belong to multiple charsets (e.g. a-grave, U+00E0, belongs to charsets | |
b350bdf2 | 1870 | unicode, iso-8859-1, iso-8859-3, etc). |
d82c3d44 | 1871 | |
16e82271 CY |
1872 | **** The dimension of a charset is now 1, 2, 3, or 4, and the size of |
1873 | each dimension is no longer limited to 94 or 96. | |
1874 | ||
1875 | **** A dynamic charset priority list is used to infer the charset of | |
1876 | characters for display. | |
1877 | ||
c9a1876d EZ |
1878 | *** The functions `split-char' and `make-char' now accept up to 4 |
1879 | positional codes instead of just 2. | |
1880 | ||
d82c3d44 GM |
1881 | *** The functions `encode-char' and `decode-char' now accept any character sets. |
1882 | ||
1883 | *** The function `define-charset' now accepts a completely different | |
1884 | form of arguments (old-style arguments still work). | |
1885 | ||
d82c3d44 GM |
1886 | *** The value of the function `char-charset' depends on the current |
1887 | priorities of charsets. | |
1888 | ||
d82c3d44 GM |
1889 | *** The function get-char-code-property now accepts many Unicode base |
1890 | character properties. They are `name', `general-category', | |
1891 | `canonical-combining-class', `bidi-class', `decomposition', | |
1892 | `decimal-digit-value', `digit-value', `numeric-value', `mirrored', | |
1893 | `old-name', `iso-10646-comment', `uppercase', `lowercase', and | |
1894 | `titlecase'. | |
1895 | ||
b350bdf2 CY |
1896 | *** The functions `modify-syntax-entry' and `modify-category-entry' now |
1897 | accept a cons of characters as the first argument, and modify all | |
1898 | entries in that range of characters. | |
d82c3d44 | 1899 | |
8434d0b8 EZ |
1900 | *** Use of `translation-table-for-input' for character code unification |
1901 | is now obsolete, since Emacs 23.1 and later uses Unicode as basis for | |
1902 | internal representation of characters. | |
d82c3d44 | 1903 | |
b350bdf2 | 1904 | *** New functions: |
d82c3d44 | 1905 | |
b350bdf2 CY |
1906 | **** `characterp' returns t if and only if the argument is a character. |
1907 | This replaces `char-valid-p', which is now obsolete. | |
d82c3d44 | 1908 | |
b350bdf2 | 1909 | **** `max-char' returns the maximum character code (currently #x3FFFFF). |
d82c3d44 | 1910 | |
b350bdf2 CY |
1911 | **** `define-charset-alias' defines an alias of a charset. |
1912 | ||
1913 | **** `set-charset-priority' sets priorities of charsets. | |
1914 | ||
1915 | **** `charset-priority-list' returns a prioritized list of charsets. | |
1916 | ||
1917 | **** `unibyte-string' makes a unibyte string from bytes. | |
1918 | ||
1919 | **** `define-char-code-property' defines a character code property. | |
1920 | ||
1921 | **** `char-code-property-description' returns the description string of | |
1922 | a character code property. | |
1923 | ||
1924 | *** New variables: | |
1925 | ||
1926 | **** `find-word-boundary-function-table' is a char-table of functions to | |
1927 | search for a word boundary. | |
1928 | ||
1929 | **** `char-script-table' is a char-table of script names. | |
1930 | ||
1931 | **** `char-width-table' is a char-table of character widths. | |
1932 | ||
1933 | **** `print-charset-text-property' controls how to handle `charset' text | |
1934 | property on printing a string. | |
1935 | ||
1936 | **** `printable-chars' is a char-table of printable characters. | |
d82c3d44 | 1937 | |
505d8756 | 1938 | ** Code conversion changes |
d82c3d44 GM |
1939 | |
1940 | *** The new function `define-coding-system' should be used to define a | |
1941 | coding system instead of `make-coding-system' (which is now obsolete). | |
1942 | ||
1943 | *** The functions `encode-coding-region' and `decode-coding-region' | |
1944 | have an optional 4th argument to specify where the result of | |
1945 | conversion should go. | |
1946 | ||
1947 | *** The functions `encode-coding-string' and `decode-coding-string' | |
1948 | have an optional 4th argument specifying a buffer to store the result | |
1949 | of conversion. | |
1950 | ||
b0caa7fb EZ |
1951 | *** The new variable `inhibit-null-byte-detection' controls whether to |
1952 | consider text with null bytes as binary data. By default, it is | |
1953 | `nil', and Emacs uses `no-conversion' for any text containing null | |
1954 | bytes. | |
1955 | ||
b350bdf2 | 1956 | *** The functions `set-coding-priority' and `make-coding-system' are obsolete. |
d82c3d44 | 1957 | |
b350bdf2 | 1958 | *** New functions: |
d82c3d44 | 1959 | |
b350bdf2 CY |
1960 | **** `with-coding-priority' executes Lisp code using the specified |
1961 | coding system priority order. | |
d82c3d44 | 1962 | |
b350bdf2 CY |
1963 | **** `check-coding-systems-region' checks if the text in the region is |
1964 | encodable by the specified coding systems. | |
d82c3d44 | 1965 | |
b350bdf2 | 1966 | **** `coding-system-aliases' returns a list of aliases of a coding system. |
d82c3d44 | 1967 | |
b350bdf2 CY |
1968 | **** `coding-system-charset-list' returns a list of charsets supported |
1969 | by a coding system. | |
d82c3d44 | 1970 | |
b350bdf2 CY |
1971 | **** `coding-system-priority-list' returns a list of coding systems |
1972 | ordered by their priorities. | |
1973 | ||
1974 | **** `set-coding-system-priority' sets priorities of coding systems. | |
d82c3d44 | 1975 | |
f4017dc5 KH |
1976 | **** `coding-system-from-name' returns a coding system matching with |
1977 | the argument name. | |
1978 | ||
1979 | ||
d82c3d44 | 1980 | ** There is a new input method, Robin, different from Quail. |
0caa490b | 1981 | It has three functionalities: |
d82c3d44 GM |
1982 | i) a simple input method (converts an ASCII sequence into a string). |
1983 | ii) converts an existing buffer substring into another string | |
1984 | iii) reverse conversion (each character produced by a | |
1985 | robin rule can hold the original ASCII sequence as a char-code-property) | |
1986 | ||
1987 | *** The new function `robin-define-package' defines a Robin package. | |
1988 | ||
1989 | *** The new function `robin-modify-package' modifies an existing Robin package. | |
1990 | ||
1991 | *** The new function `robin-use-package' starts using a Robin package | |
1992 | as an input method. | |
1993 | ||
888d7d86 KH |
1994 | *** The new function `string-to-unibyte' is like `string-as-unibyte' |
1995 | but signals an error if STRING contains a non-ASCII, non-eight-bit | |
1996 | character. | |
1997 | ||
505d8756 | 1998 | ** Changes related to the new font backend |
16e82271 | 1999 | |
0c1e3f0d CY |
2000 | *** Which font backends to use can be specified by the X resource |
2001 | "FontBackend". For instance, to use both X core fonts and Xft fonts: | |
2b7a2553 | 2002 | |
b19aa6dd | 2003 | Emacs.FontBackend: x,xft |
2b7a2553 | 2004 | |
b19aa6dd GM |
2005 | If this resource is not set, Emacs tries to use all font backends |
2006 | available on your graphic device. | |
16e82271 | 2007 | |
d82c3d44 GM |
2008 | *** New frame parameter `font-backend' specifies a list of |
2009 | font-backends supported by the frame's graphic device. On X, they are | |
2010 | currently `x' and `xft'. | |
2011 | ||
b350bdf2 CY |
2012 | *** The function `set-fontset-font' now accepts a script name as the |
2013 | second argument, and has an optional 5th argument to control how to | |
2014 | set the font. | |
bd9d28f7 | 2015 | |
b350bdf2 | 2016 | *** New functions: |
16e82271 | 2017 | |
b350bdf2 | 2018 | **** `fontp' checks if the argument is a font-spec or font-entity. |
16e82271 | 2019 | |
b350bdf2 | 2020 | **** `font-spec' creates a new font-spec object. |
16e82271 | 2021 | |
b350bdf2 | 2022 | **** `font-get' returns a font property value. |
16e82271 | 2023 | |
b350bdf2 | 2024 | **** `font-put' sets a font property value. |
16e82271 | 2025 | |
b350bdf2 | 2026 | **** `font-face-attributes' returns a plist of face attributes set by a font. |
16e82271 | 2027 | |
b350bdf2 | 2028 | **** `list-fonts' returns a list of font-entities matching a font spec. |
16e82271 | 2029 | |
543e6d09 | 2030 | **** `find-font' returns the font-entity best matching the given font spec. |
16e82271 | 2031 | |
ae525471 | 2032 | **** `font-family-list' returns a list of family names of available fonts. |
16e82271 | 2033 | |
b350bdf2 CY |
2034 | **** `font-xlfd-name' returns an XLFD name of a given font spec, font |
2035 | entity, or font object. | |
16e82271 | 2036 | |
b350bdf2 | 2037 | **** `clear-font-cache' clears all font caches. |
d82c3d44 | 2038 | |
b350bdf2 | 2039 | ** Changes related to multiple-terminal (multi-tty) support |
24cdde13 | 2040 | |
b12f6e85 SM |
2041 | *** $TERM is now set to `dumb' for subprocesses. If you want to know the |
2042 | $TERM inherited by Emacs you will have to look inside initial-environment. | |
2043 | ||
6168122d SM |
2044 | *** $DISPLAY is now dynamically inherited from the frame's `display'. |
2045 | ||
b350bdf2 | 2046 | *** The `window-system' variable is now frame-local. The new |
24cdde13 | 2047 | `initial-window-system' variable contains the `window-system' value |
bbe3eb99 GM |
2048 | for the first frame. `window-system' is also now a function that |
2049 | takes a frame argument. | |
24cdde13 | 2050 | |
b350bdf2 CY |
2051 | *** The `keyboard-translate-table' variable and the terminal and |
2052 | keyboard coding systems are now terminal-local. | |
2053 | ||
24cdde13 GM |
2054 | *** You can specify a terminal device (`tty' parameter) and a terminal |
2055 | type (`tty-type' parameter) to `make-terminal-frame'. | |
2056 | ||
24cdde13 | 2057 | *** The function `make-frame-on-display' now works during a tty |
4e598d29 | 2058 | session. |
24cdde13 | 2059 | |
1e637a9f EZ |
2060 | *** A new `terminal' data type. |
2061 | The functions `get-device-terminal', `terminal-parameters', | |
765980a4 | 2062 | `terminal-parameter', `set-terminal-parameter' use this data type. |
24cdde13 | 2063 | |
b350bdf2 CY |
2064 | *** Function key sequences are now mapped using `local-function-key-map', |
2065 | a new variable. This inherits from the global variable function-key-map, | |
2066 | which is not used directly any more. | |
92cd6a7c | 2067 | |
b350bdf2 | 2068 | *** New hooks: |
da406961 | 2069 | |
7082ceb2 CY |
2070 | **** before-hack-local-variables-hook is called after setting new |
2071 | variable file-local-variables-alist, and before actually applying the | |
2072 | file-local variables. | |
2073 | ||
b350bdf2 CY |
2074 | **** `suspend-tty-functions' and `resume-tty-functions' are called |
2075 | after a tty frame has been suspended or resumed, respectively. The | |
2076 | functions are called with the terminal id of the frame being | |
2077 | suspended/resumed as a parameter. | |
da406961 | 2078 | |
b350bdf2 CY |
2079 | **** The special hook `delete-terminal-functions' is called before |
2080 | deleting a terminal. | |
82866ad5 | 2081 | |
b350bdf2 | 2082 | *** New functions: |
24cdde13 | 2083 | |
490f1197 | 2084 | **** `delete-terminal' |
9f44d41a | 2085 | |
b350bdf2 | 2086 | **** `suspend-tty' |
ea2e3ef4 | 2087 | |
b350bdf2 | 2088 | **** `resume-tty'. |
8d371994 | 2089 | |
b350bdf2 | 2090 | *** `initial-environment' holds the environment inherited from Emacs's parent. |
8d371994 | 2091 | |
b350bdf2 | 2092 | ** Redisplay changes |
16e82271 | 2093 | |
b350bdf2 CY |
2094 | *** For underlined characters, the distance between the underline and |
2095 | the baseline is controlled by a new variable, `underline-minimum-offset'. | |
16e82271 | 2096 | |
b350bdf2 CY |
2097 | *** You can now pass the value of the `invisible' property to |
2098 | invisible-p to check whether it would cause the text to be invisible. | |
540f3092 GM |
2099 | This is convenient when checking invisibility of text with no buffer |
2100 | position (e.g. in before/after-strings). | |
16e82271 | 2101 | |
b350bdf2 | 2102 | *** `clear-image-cache' can be told to flush only images of a specific file. |
16e82271 | 2103 | |
0c8b58e9 CY |
2104 | *** `vertical-motion' can now be given a goal column. |
2105 | It now accepts a cons cell (COLS . LINES) in its first argument, which | |
2106 | says to stop, where possible, at a pixel x-position equal to COLS | |
2107 | times the default column width. | |
16e82271 | 2108 | |
e589455f MR |
2109 | *** redisplay-end-trigger-functions, set-window-redisplay-end-trigger, |
2110 | and window-redisplay-end-trigger are obsolete. Use `jit-lock-register' | |
2111 | instead. | |
16e82271 | 2112 | |
605bfcb3 CY |
2113 | *** The new variables `wrap-prefix' and `line-prefix' specify display |
2114 | specs which are appended at display-time to every continuation line | |
2115 | and non-continuation line, respectively. In addition, Emacs | |
2116 | recognizes the `wrap-prefix' and `line-prefix' text or overlay | |
2117 | properties; these have the same effects as the variables of the same | |
2118 | name, but take precedence. | |
e589455f | 2119 | |
9ac64acd CY |
2120 | ** The Lisp interpreter now treats non-breaking space as whitespace. |
2121 | ||
b350bdf2 | 2122 | ** Miscellaneous new functions |
9f44d41a | 2123 | |
b350bdf2 | 2124 | *** `apply-partially' performs a "curried" application of a function. |
abf13a8b | 2125 | |
b350bdf2 CY |
2126 | *** `buffer-swap-text' swaps text between two buffers. This can be |
2127 | useful for modes such as tar-mode, archive-mode, RMAIL. | |
967b2682 | 2128 | |
6880f6db CY |
2129 | *** `combine-and-quote-strings' produces a single string from a list of strings |
2130 | sticking a separator string in between each pair, and quoting those | |
2131 | strings that include the separator as their substring. Useful for | |
2132 | consing shell command lines from the individual arguments. | |
2133 | ||
2134 | *** `custom-note-var-changed' tells Custom to treat the change in a | |
2135 | certain variable as having been made within Custom. | |
b350bdf2 CY |
2136 | |
2137 | *** `face-all-attributes' returns an alist describing all the basic | |
2138 | attributes of a given face. | |
2139 | ||
6880f6db CY |
2140 | *** `format-seconds' converts a number of seconds into a readable |
2141 | string of days, hours, etc. | |
b350bdf2 CY |
2142 | |
2143 | *** `image-refresh' refreshes all images associated with a given image | |
2144 | specification. | |
64639e26 | 2145 | |
6880f6db CY |
2146 | *** `locate-user-emacs-file' helps packages to select the appropriate |
2147 | place to save user-specific files. It defaults to `user-emacs-directory' | |
2148 | unless the file already exists at $HOME. | |
2149 | ||
6880f6db CY |
2150 | *** `read-color' reads a color name using the minibuffer. |
2151 | ||
6880f6db CY |
2152 | *** `read-shell-command' does what its name says, with completion. It |
2153 | uses the minibuffer-local-shell-command-map for that. | |
2154 | ||
6880f6db CY |
2155 | *** `split-string-and-unquote' splits a string into a list of substrings |
2156 | on the boundaries of a given delimiter, and unquotes the substrings that | |
2157 | are quoted. Useful for taking apart shell commands. | |
2158 | ||
b350bdf2 | 2159 | *** The two new functions `looking-at-p' and `string-match-p' can do |
45595a4f RS |
2160 | the same matching as `looking-at' and `string-match' without changing |
2161 | the match data. | |
89835619 | 2162 | |
81efacf9 CY |
2163 | *** The two new functions `make-serial-process' and |
2164 | `serial-process-configure' provide a Lisp interface to the new serial | |
2165 | port support (see Emacs changes, above). | |
2166 | ||
b350bdf2 CY |
2167 | ** Miscellaneous new variables |
2168 | ||
28aaa255 CY |
2169 | *** `auto-save-include-big-deletions', if non-nil, means auto-save is |
2170 | not turned off automatically after a big deletion. | |
2171 | ||
91f68422 CY |
2172 | *** `read-circle', if nil, disables the reading of recursive Lisp |
2173 | structures using the #N= and #N# syntax. | |
2174 | ||
b350bdf2 CY |
2175 | *** `this-command-keys-shift-translated' is non-nil if the key |
2176 | sequence invoking the current command was found by shift-translation. | |
2177 | ||
2178 | *** `window-point-insertion-type' determines the insertion-type of the | |
2179 | marker used for window-point. | |
2180 | ||
2181 | *** bookmark provides `bookmark-make-record-function' so special major | |
2182 | modes like Info can teach bookmark.el how to save and restore the | |
2183 | relevant data. | |
2184 | ||
b350bdf2 CY |
2185 | *** `fill-forward-paragraph-function' specifies which function the |
2186 | filling code should use to find paragraph boundaries. | |
2187 | ||
9bae34bf | 2188 | \f |
0bfd685e | 2189 | * New Packages for Lisp Programming in Emacs 23.1 |
efeb796b | 2190 | |
b350bdf2 CY |
2191 | ** The new package avl-tree.el deals with the AVL tree data structure. |
2192 | ||
2193 | ** The new package check-declare.el verifies the accuracy of | |
2194 | declare-function macros (see Lisp Changes, above). | |
d445b3f8 | 2195 | |
20202f5e | 2196 | ** find-cmd.el can build `find' commands using lisp syntax. |
6dfcbe31 | 2197 | |
babc4609 JL |
2198 | ** The package misearch.el has been added. It allows Isearch to search |
2199 | through multiple buffers. A variable `multi-isearch-next-buffer-function' | |
2200 | defines the function to call to get the next buffer to search in the series | |
b0d6136e | 2201 | of multiple buffers. Top-level functions `multi-isearch-buffers', |
babc4609 JL |
2202 | `multi-isearch-buffers-regexp', `multi-isearch-files' and |
2203 | `multi-isearch-files-regexp' accept a single argument that specifies | |
2204 | a list of buffers/files to search for a string/regexp. | |
9097e8af | 2205 | |
b350bdf2 CY |
2206 | ** The new major mode `special-mode' is intended as a parent for |
2207 | major modes such as those that set the "'mode-class 'special" property. | |
d53a60a6 | 2208 | |
05197f40 | 2209 | \f |
a933dad1 | 2210 | ---------------------------------------------------------------------- |
5b87ad55 | 2211 | This file is part of GNU Emacs. |
a933dad1 | 2212 | |
ab73e885 | 2213 | GNU Emacs is free software: you can redistribute it and/or modify |
5b87ad55 | 2214 | it under the terms of the GNU General Public License as published by |
ab73e885 GM |
2215 | the Free Software Foundation, either version 3 of the License, or |
2216 | (at your option) any later version. | |
5b87ad55 GM |
2217 | |
2218 | GNU Emacs is distributed in the hope that it will be useful, | |
2219 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
2220 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
2221 | GNU General Public License for more details. | |
a933dad1 | 2222 | |
5b87ad55 | 2223 | You should have received a copy of the GNU General Public License |
ab73e885 | 2224 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
a933dad1 | 2225 | |
05197f40 | 2226 | \f |
a933dad1 DL |
2227 | Local variables: |
2228 | mode: outline | |
2229 | paragraph-separate: "[ \f]*$" | |
2230 | end: | |
ab5796a9 | 2231 | |
a533413c | 2232 | arch-tag: e759449d-88b3-4de4-9900-3a6c3dfa23e2 |