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29b7722a | 1 | GNU Emacs NEWS -- history of user-visible changes. |
5b87ad55 | 2 | |
dcb8ac09 | 3 | Copyright (C) 2007, 2008 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 GM |
16 | |
17 | Temporary note: | |
18 | +++ indicates that the appropriate manual has already been updated. | |
19 | --- means no change in the manuals is called for. | |
20 | When you add a new item, please add it without either +++ or --- | |
21 | so we will look at it and add it to the manual. | |
22 | ||
05197f40 | 23 | \f |
9c576ea0 KS |
24 | * About external Lisp packages |
25 | ||
9c576ea0 | 26 | \f |
0bfd685e | 27 | * Installation Changes in Emacs 23.1 |
c58dccad | 28 | |
3f7194ed | 29 | ** The default X toolkit is now Gtk+, rather than Lucid. |
09e18d03 CY |
30 | The configure option `--with-gtk' has been removed. Gtk is now the |
31 | default toolkit, but you can use --with-x-toolkit=gtk if necessary. | |
3f7194ed | 32 | |
09e18d03 CY |
33 | ** New font code. |
34 | Fonts are handled by new code capable of dealing with multiple font | |
de9efca0 | 35 | backends. This uses the freetype and fontconfig libraries. |
2b7a2553 | 36 | |
09e18d03 CY |
37 | *** Emacs now accepts font names supplied in the fontconfig format |
38 | (e.g. "monospace-12:bold") and GTK format (e.g. "Monospace Bold 12"). | |
1abe3a1e | 39 | |
09e18d03 CY |
40 | *** Added support for local fonts (fonts installed on the machine |
41 | where Emacs is running). | |
42 | ||
43 | *** Added support for the Xft library for antialiasing. | |
44 | ||
45 | *** Added support for the otf library for complex text layout by | |
46 | OpenType fonts. | |
47 | ||
48 | *** Added support for the m17n library for text shaping. | |
15f02f65 | 49 | |
09e18d03 | 50 | ** Changes to image support |
2e0ef05b | 51 | --- |
09e18d03 | 52 | *** configure now checks for libgif before libungif when searching for |
9d3cc9b2 | 53 | a GIF library. |
2e0ef05b | 54 | +++ |
09e18d03 CY |
55 | *** Emacs now supports the SVG image format through librsvg2. |
56 | ||
fab17942 JR |
57 | *** Emacs now supports multi-page TIFF images. |
58 | ||
006a2cde | 59 | ** New NeXTSTEP-based port |
3dcdb6ea | 60 | This provides support for GNUstep (via the GNUstep libraries) and Mac |
1e9b0fb2 | 61 | OS X (via the Cocoa libraries). |
043023ca CY |
62 | |
63 | Specify --with-ns to configure for this. By default, a self-contained | |
64 | app will be built (containing all lisp). To install/share lisp with | |
65 | other emacsen (e.g. X11 build) use --disable-ns-self-contained. See | |
66 | nextstep/README and nextstep/INSTALL in the Emacs source directory. | |
006a2cde CY |
67 | |
68 | ** Mac OS X is no longer supported via Carbon. | |
69 | Use the NeXTSTEP port, described above. | |
36e625ec | 70 | |
09e18d03 CY |
71 | ** The new configuration option "--with-dbus" enables D-Bus language |
72 | bindings for Emacs. | |
07e5c0b0 | 73 | |
bb9f7948 EZ |
74 | ** Support for many obsolete platforms has been removed. |
75 | See the list at the end of etc/MACHINES for details. | |
2e0ef05b | 76 | --- |
09e18d03 | 77 | *** Support for systems without alloca has been removed. |
2e0ef05b | 78 | --- |
09e18d03 | 79 | *** Support for Sun windows has been removed. |
2e0ef05b CY |
80 | --- |
81 | *** The `emacstool' utility has been removed. | |
09e18d03 | 82 | |
006a2cde | 83 | ** The following platforms will be removed in a future Emacs version: |
9bc072cc CY |
84 | If you are still using Emacs on one of these platforms, please email |
85 | emacs-devel@gnu.org to inform the Emacs developers. | |
006a2cde | 86 | |
9bc072cc | 87 | *** Old GNU/Linux systems based on libc version 5. |
006a2cde | 88 | |
9bc072cc CY |
89 | *** Old FreeBSD, NetBSD, and OpenBSD systems based on the COFF |
90 | executable format. | |
006a2cde CY |
91 | |
92 | *** Solaris versions 2.6 and below. | |
93 | ||
32847230 CY |
94 | *** Solaris on IBM RS6000 machines. |
95 | ||
96 | *** UNIX System V (the original SysV, not later platforms based on it). | |
97 | ||
9bc072cc CY |
98 | *** Unixware on non-x86 machines. |
99 | ||
32847230 CY |
100 | *** Platforms not supporting shared libraries (i.e., requiring the |
101 | NO_SHARED_LIBS compilation flag). | |
006a2cde | 102 | |
2e0ef05b | 103 | --- |
a46ee55c GM |
104 | ** The configure options `--with-gcc', `--without-gcc' have been removed. |
105 | Configure will use gcc by default. Set the CC environment variable if | |
106 | you need control over which C compiler is used. | |
107 | ||
09e18d03 CY |
108 | ** The refcards are now shipped as PDF files. |
109 | ||
2e0ef05b | 110 | --- |
09e18d03 CY |
111 | ** Emacs 23 comes with a new set of default icons. |
112 | Various resolutions are available as etc/images/icons/hicolor/*/apps/emacs.png. | |
113 | The Emacs 22 icon is available as `emacs22.png' in the same location. | |
4e5cdb4f | 114 | \f |
6dadd99f NR |
115 | * Changes in Emacs 23.1 |
116 | ||
09e18d03 | 117 | ** Improved X Window System support |
c409d2f3 | 118 | +++ |
09e18d03 CY |
119 | *** Emacs now supports using both X displays and ttys in one session. |
120 | With an Emacs server active (M-x server-start), `emacsclient -t' | |
121 | creates a tty frame connected to the running emacs server. You can | |
122 | use any number of different ttys. `emacsclient -c' creates a new X11 | |
123 | frame on the current $DISPLAY (or a tty frame if $DISPLAY is not set). | |
780d7bb9 RS |
124 | |
125 | You can test for the presence of this feature in your Lisp code by | |
126 | testing for the `multi-tty' feature. | |
c409d2f3 | 127 | +++ |
09e18d03 CY |
128 | **** Emacsclient can now open new terminal frames. |
129 | Now, the default behavior is to open a new Emacs frame by default. | |
130 | Use the -c option to get the old behavior of opening files in the | |
131 | currently selected Emacs frame. | |
c409d2f3 | 132 | +++ |
eab2ee89 DN |
133 | *** Emacs can now start in background, as a daemon when using the |
134 | --daemon command line argument. It disconnects from the terminal and | |
135 | starts the server. Clients can connect and create graphical or | |
136 | terminal frames using emacsclient. | |
137 | ||
09e18d03 CY |
138 | *** The new command close-display-connection closes a connection to a |
139 | remote display. | |
d82c3d44 | 140 | |
09e18d03 CY |
141 | *** Emacs now supports the XEmbed specification. |
142 | You can embed Emacs in another application on X11. The new command line | |
143 | option --parent-id is used to pass the parent window id to Emacs. See | |
7b476dbe JD |
144 | http://standards.freedesktop.org/xembed-spec/xembed-spec-latest.html |
145 | for details about XEmbed. | |
146 | ||
09e18d03 CY |
147 | *** Emacs can now set the frame opacity. |
148 | The opacity of a frame can be controlled by setting the `alpha' frame | |
149 | parameter. This only takes effect on a compositing window manager for | |
0f784aa6 JR |
150 | the X Window System, such as Compiz, Beryl and Compiz Fusion, or on |
151 | Windows 2000 and later versions of Windows. | |
55f9bad5 GM |
152 | |
153 | The alpha parameter should be an integer between 0 (transparent) and | |
09e18d03 CY |
154 | 100 (opaque), or a float number between 0.0 and 1.0. It can also be a |
155 | cons cell (ACTIVE . INACTIVE), where ACTIVE is the opacity of an | |
156 | active frame and INACTIVE is the opactity of non-active frames. | |
55f9bad5 | 157 | |
09e18d03 CY |
158 | The variable `frame-alpha-lower-limit' defines a lower bound for the |
159 | opacity; the default is 20. | |
55f9bad5 | 160 | |
09e18d03 | 161 | ** Internationalization changes |
fec8ef06 | 162 | |
09e18d03 CY |
163 | *** The Emacs character set is now a superset of Unicode. |
164 | (It has about four times the code space, which should be plenty). | |
0a963185 | 165 | |
09e18d03 CY |
166 | The internal encoding used for buffers and strings is now |
167 | Unicode-based and called `utf-8-emacs'. This encoding is backwards | |
168 | compatible with Unicode's UTF-8 encoding. The internal encoding | |
169 | previously used by Emacs, `emacs-mule', is still available. | |
6dadd99f | 170 | |
09e18d03 CY |
171 | During byte-compilation, Emacs 23 uses `utf-8-emacs' to write files. |
172 | As a result, byte-compiled files containing non-ASCII characters can't | |
173 | be read by earlier versions of Emacs. Files compiled by Emacs 20, 21, | |
174 | or 22 are loaded correctly as emacs-mule (whether or not they contain | |
175 | multibyte characters). This takes somewhat more time, so it may be | |
176 | worth recompiling existing .elc files which don't need to be shared | |
177 | with older Emacsen. | |
3ae459e5 | 178 | |
09e18d03 | 179 | *** There are new coding systems/aliases; see M-x list-coding-systems. |
c2e8590b | 180 | |
09e18d03 CY |
181 | *** There is a new charset implementation with many new charsets. |
182 | See M-x list-character-sets. New charsets can be defined conveniently | |
183 | as tables of unicodes. | |
1abe3a1e | 184 | |
09e18d03 CY |
185 | **** The dimension of a charset is now 1, 2, 3, or 4, and the size of |
186 | each dimension is no longer limited to 94 or 96. | |
eb28688c | 187 | |
09e18d03 CY |
188 | **** A dynamic charset priority list is used to infer the charset of |
189 | characters for display. | |
6c5d503f | 190 | |
09e18d03 CY |
191 | *** There are new language environments for Chinese-GBK, |
192 | Chinese-GB18030, Khmer, Bengali, Punjabi, Gujarati, Oriya, Telugu, | |
193 | Sinhala, and TaiViet. | |
c9447ae1 | 194 | |
09e18d03 CY |
195 | *** The minor modes unify-8859-on-encoding-mode and |
196 | unify-8859-on-decoding-mode are obsolete. | |
d466e9fc | 197 | |
e94d0645 JL |
198 | *** `ucs-insert' is bound to `C-x 8 RET' and in addition to hex numbers |
199 | accepts numbers in hash notation (e.g. #o21430 for octal, or #10r8984 for | |
200 | decimal). It also accepts Unicode character names with completion. | |
201 | ||
6d496c76 TZ |
202 | *** The `cyrillic-translit' input method supports many new characters. |
203 | Common typographical characters available from Unicode were added to | |
204 | `cyrillic-translit': punctuation marks, accented characters, fractions, | |
205 | and others. | |
206 | ||
09e18d03 | 207 | ** Emacs now supports serial port access on GNU/Linux, Unix, and |
81efacf9 CY |
208 | Windows. The new command `serial-term' starts an interactive terminal |
209 | on a serial port. The serial port can be configured at runtime with | |
210 | the mode-line mouse menu. | |
6c5d503f | 211 | |
09e18d03 | 212 | ** Menu Bar changes |
81efacf9 | 213 | --- |
09e18d03 CY |
214 | *** In the Options menu, the "Set Default Font" item applies the |
215 | selected font to the `default' face on all frames, not just the | |
216 | current frame. Furthermore, if Emacs is compiled with both GTK and | |
217 | Fontconfig support, the "Set Default Font" item uses the GTK font | |
218 | selection dialog instead of an Emacs pop-up menu. | |
81efacf9 | 219 | --- |
09e18d03 CY |
220 | *** The font setting chosen by "Set Default Font" is saved if the |
221 | "Save Options" item is used. | |
1b21ee06 | 222 | |
b350bdf2 CY |
223 | *** The Tools menu contains a new Encryption/Decryption submenu. |
224 | This contains commands provided by EasyPG, the newly-included | |
225 | interface to GnuPG (see New Modes and Packages). | |
81efacf9 CY |
226 | --- |
227 | *** In the Options menu, the "Truncate Long Lines in the Buffer" entry | |
228 | has been replaced with a submenu offering three different ways to | |
229 | handle long lines: truncation, continuation at the window edge, and | |
697f6b43 | 230 | the new word wrapping behavior (see Editing Changes, below). |
5c4a15b3 | 231 | |
c1337511 DN |
232 | *** Improvements to menus for major and minor modes |
233 | More major and minor modes now have a mode specific menu, and existing | |
234 | mode menus have been improved to include more functionality. | |
235 | ||
09e18d03 | 236 | ** Mode-line changes |
a6b85944 | 237 | +++ |
09e18d03 CY |
238 | *** The mode-line displays a `@', instead of `-', if the |
239 | default-directory for the current buffer is on a remote machine. | |
6c8ad8f7 | 240 | --- |
09e18d03 CY |
241 | *** The mode-line displays a mode menu when mouse-1 is clicked on a |
242 | minor mode, in the same way as it already did for major modes. | |
b3cf10d7 | 243 | |
09e18d03 CY |
244 | *** The `mode-line-emphasis' face is used to highlight certain |
245 | mode-line information (e.g. waiting for a VC command to finish). | |
6c8ad8f7 | 246 | --- |
c1337511 | 247 | *** The mode-line tooltips have been improved to provide more details. |
04e6cfff | 248 | +++ |
c1337511 DN |
249 | *** The VC, line/colum number and minor mode indicators on the mode |
250 | line are now interactive: mouse-1 can be used on them to pop up a menu. | |
251 | ||
b798e26a GM |
252 | ** File deletion can make use of the Recycle Bin or system Trash folder. |
253 | Set `delete-by-moving-to-trash' non-nil to use this. Deleted files | |
254 | and directories will then be sent to the Recyle Bin on Windows, and | |
255 | to `trash-directory' on other systems. | |
256 | ||
d91c8dd8 | 257 | +++ |
09e18d03 CY |
258 | ** Directory-local variables can now be defined. |
259 | By default, Emacs looks in .dir-settings.el for directory-local | |
260 | variables. For more information, see `set-directory-project' and | |
261 | `define-project-bindings'. | |
307f3501 | 262 | |
b798e26a GM |
263 | ** Emacs can now use `auth-source' for authentication. |
264 | `smtpmail' and `url' (Tramp and Gnus also) use `auth-source' to obtain | |
265 | login names and passwords. The match, if found, is reported | |
266 | in *Messages* with the password blanked out. | |
267 | ||
268 | ** `where-is-preferred-modifier' can specify your favorite modifier. | |
269 | ||
6dadd99f | 270 | \f |
0bfd685e | 271 | * Startup Changes in Emacs 23.1 |
21f7b9d8 | 272 | |
a6b85944 | 273 | +++ |
3063e326 JL |
274 | ** The option `inhibit-startup-screen' (with aliases to old names |
275 | `inhibit-splash-screen' and `inhibit-startup-message') doesn't inhibit | |
276 | display of the initial message in the *scratch* buffer. If you don't | |
277 | want to display the initial message in the *scratch* buffer at startup, | |
278 | you can set the option `initial-scratch-message' to nil. | |
279 | ||
56e1896b JL |
280 | ** New user option `initial-buffer-choice' specifies what to display |
281 | after starting Emacs: startup screen, *scratch* buffer, visiting a | |
282 | file or directory. | |
283 | ||
aa5310e4 DK |
284 | ** New alias `argv' for `command-line-args-left' |
285 | This is a convenience alias, so that one can write `(pop argv)' | |
286 | inside of --eval command line arguments in order to access | |
287 | following arguments. | |
f8fd7ed3 | 288 | |
1f650d5d | 289 | +++ |
f8fd7ed3 | 290 | ** The abbrev file is no longer read at startup in batch mode. |
f36acfd9 EZ |
291 | |
292 | ** Emacs now supports invocation by an X session manager. | |
293 | It can save a session and restore it later. See the documentation of | |
294 | the functions `emacs-session-save' and `emacs-session-restore'. | |
295 | (Actually, this feature was introduced with Emacs 22, but it was not | |
296 | documented.) | |
c44da964 | 297 | \f |
0bfd685e | 298 | * Incompatible Editing Changes in Emacs 23.1 |
b58cb59f | 299 | |
d1949cd5 JL |
300 | ** In Dired, `dired-flag-garbage-files' is rebound from `&' to `%&' |
301 | on the regexp command prefix map. | |
302 | ||
117907d4 JL |
303 | +++ |
304 | ** In Dired-x, all command guesses for ! are now added to the default | |
305 | list accessible by M-n instead of pushing all guesses temporarily into | |
306 | the history list. | |
307 | ||
d24cb9c9 | 308 | +++ |
e94d0645 JL |
309 | ** In Isearch mode, a special case of typing `C-w' at the beginning of |
310 | the minibuffer that toggles word search (i.e. using key sequences | |
311 | `C-s RET C-w' or `C-s M-e C-w') is obsolete. You can use the global key | |
312 | `M-s w' to start word search, or type `M-s w' in Isearch mode to | |
313 | toggle word search. | |
314 | ||
4e14951f JL |
315 | ** In Text mode, `center-line' and `center-paragraph' are rebound |
316 | from `M-s' and `M-S' to global keys `M-o M-s' and `M-o M-S' on the | |
317 | global prefix map `M-o' intended for such formatting commands. | |
318 | ||
81efacf9 | 319 | --- |
e405fa5f | 320 | ** The following input methods were removed in Emacs 22.2, but this was |
9a930d75 | 321 | not advertised: danish-alt-postfix, esperanto-alt-postfix, |
e405fa5f RS |
322 | finnish-alt-postfix, german-alt-postfix, icelandic-alt-postfix, |
323 | norwegian-alt-postfix, scandinavian-alt-postfix, spanish-alt-postfix, | |
324 | and swedish-alt-postfix. Use the versions without "alt-", which are | |
325 | identical. | |
0b0914ae | 326 | |
406c0f12 | 327 | \f |
0bfd685e | 328 | * Editing Changes in Emacs 23.1 |
406c0f12 | 329 | |
697f6b43 | 330 | +++ |
0c8b58e9 CY |
331 | ** The C-n and C-p line-motion commands now move by screen lines, |
332 | taking continued lines and variable-width characters into account. | |
333 | Setting `line-move-visual' to nil reverts this to the previous | |
334 | behavior (motion by logical lines based on buffer contents alone). | |
335 | ||
1d3b3736 | 336 | +++ |
09e18d03 CY |
337 | ** C-x C-c now invokes `save-buffers-kill-terminal', and C-z now |
338 | invokes `suspend-frame'. This change is for compatibility with the | |
339 | new multi-tty support (see `Improved X Window System support' above). | |
3ae459e5 | 340 | |
09e18d03 | 341 | ** Mark changes |
59b5d020 | 342 | +++ |
3ae459e5 | 343 | *** Transient Mark mode is now on by default. |
3ae459e5 CY |
344 | +++ |
345 | *** mark-even-if-inactive now defaults to t | |
3ae459e5 | 346 | +++ |
b350bdf2 CY |
347 | *** When Transient Mark mode is on, C-SPC C-SPC pushes a mark without |
348 | activating it. | |
1ac03a31 | 349 | +++ |
3ae459e5 CY |
350 | *** When Transient Mark mode is on, M-q now fills the region if the |
351 | region is active. Otherwise, it fills the current paragraph. | |
ecde850a | 352 | +++ |
3ae459e5 CY |
353 | *** When Transient Mark mode is on, M-$ now checks spelling of the |
354 | region if the region is active. Otherwise, it checks spelling of the | |
dc868f13 | 355 | word at point. |
46875066 | 356 | +++ |
3ae459e5 CY |
357 | *** When Transient Mark mode is on, TAB now indents the region if the |
358 | region is active. | |
c417ddc2 | 359 | +++ |
3ae459e5 CY |
360 | *** `use-empty-active-region' controls whether an empty active region |
361 | in Transient Mark mode should make commands operate on that empty | |
362 | region. | |
363 | ||
364 | ** Temporarily active regions | |
4502d15f | 365 | +++ |
3ae459e5 CY |
366 | *** The new variable shift-select-mode, non-nil by default, controls |
367 | shift-selection. When Shift Select mode is on, shift-translated | |
368 | motion keys (e.g. S-left and S-down) activate and extend a temporary | |
369 | region, similar to mouse-selection. | |
4502d15f | 370 | +++ |
3ae459e5 CY |
371 | *** Temporarily active regions, created using shift-selection or |
372 | mouse-selection, are not necessarily deactivated in the next command. | |
373 | They are only deactivated after point motion commands that are not | |
374 | shift-translated, or after commands that would ordinarily deactivate | |
375 | the mark in Transient Mark mode (e.g., any command that modifies the | |
376 | buffer). | |
377 | ||
3307af6c | 378 | ** Minibuffer and completion changes |
0ca1ad68 | 379 | +++ |
d47a29c1 JL |
380 | *** When M-n in the minibuffer reaches the end of the list of defaults, |
381 | it adds the completion list to the end, so next M-n continues putting | |
382 | completion items to the minibuffer. The same principle applies to | |
383 | incremental search commands as well: C-s or C-M-s starts searching | |
384 | the default values and after the end of defaults they continue | |
385 | searching minibuffer completion items. | |
3c241617 | 386 | --- |
09e18d03 CY |
387 | *** Minibuffer input of shell commands now comes with completion. |
388 | ||
389 | *** In the `C-x d' (Dired) prompt, typing M-n gives the visited file | |
390 | name of the current buffer. | |
dc2f6c05 | 391 | |
09e18d03 CY |
392 | *** In the M-! (shell-command) prompt, M-n provides some default commands. |
393 | These are guessed using the file extension of the current file, based | |
394 | on the file-handlers specified in the operating system's `mailcap' | |
395 | file. The ! command in Dired (dired-do-shell-command) works | |
396 | similarly, using the file displayed on the current line. | |
117907d4 JL |
397 | |
398 | *** A list of regexp default values is available via M-n for `occur', | |
399 | `keep-lines', `flush-lines' and `how-many'. This list includes the active | |
4f75e082 JL |
400 | region in transient-mark-mode, the word under the cursor, the last Isearch |
401 | regexp, the last Isearch string and the last replacement regexp. | |
c4e606b6 | 402 | --- |
3353f870 CY |
403 | *** When enable-recursive-minibuffers is non-nil, operations which use |
404 | switch-to-buffer (such as C-x b and C-x C-f) do not fail any more when | |
405 | used in a minibuffer or a dedicated window. Instead, they fallback on | |
406 | using pop-to-buffer, which will use some other window. This change | |
407 | has no effect when enable-recursive-minibuffers is nil (the default). | |
3c241617 | 408 | +++ |
4f75e082 JL |
409 | *** Isearch started in the minibuffer searches in the minibuffer history. |
410 | Reverse Isearch commands (C-r, C-M-r) search in previous minibuffer | |
411 | history elements, and forward Isearch commands (C-s, C-M-s) search in | |
297b8ccd JL |
412 | next history elements. When the reverse search reaches the first history |
413 | element, it wraps to the last history element, and the forward search | |
414 | wraps to the first history element. When the search is terminated, the | |
415 | history element containing the search string becomes the current. | |
416 | ||
6c897494 CY |
417 | *** The variable read-file-name-completion-ignore-case overrides |
418 | completion-ignore-case for file name completion. | |
419 | ||
420 | *** The variable read-buffer-completion-ignore-case overrides | |
421 | completion-ignore-case for buffer name completion. | |
3307af6c CY |
422 | --- |
423 | *** `completion-styles' can be customized to choose your favorite | |
424 | completion style. | |
425 | --- | |
426 | *** The default completion styles include a form of partial-completion. | |
427 | --- | |
428 | *** The new command `minibuffer-force-complete' chooses one of the | |
429 | possible completions, rather than stopping at the common prefix. | |
430 | +++ | |
431 | *** If `completion-auto-help' is `lazy', Emacs shows the completions | |
432 | buffer only on the second attempt to complete. This was already | |
433 | supported in `partial-completion-mode'. | |
6c897494 | 434 | |
505d8756 | 435 | ** Face changes |
6c8ad8f7 | 436 | +++ |
b350bdf2 CY |
437 | *** S-down-mouse-1 now pops up a menu for changing the font and text |
438 | size of the default face in the current buffer. The face is changed | |
439 | via face remapping (see below). | |
d2d160bd | 440 | |
f20186fd GM |
441 | *** FIXME face-remap |
442 | ||
09e18d03 | 443 | ** Primary selection changes |
ac40fadb | 444 | +++ |
09e18d03 CY |
445 | *** If `select-active-regions' is t, setting the mark automatically |
446 | makes the new region into the primary selection (for interaction with | |
447 | other window applications). If you enable this, you might want to | |
448 | bind `mouse-yank-primary' to Mouse-2. | |
ac40fadb | 449 | +++ |
b350bdf2 CY |
450 | *** You can disable kill ring commands from accessing the primary |
451 | selection by setting `x-select-enable-primary' to nil. | |
2e282009 | 452 | |
697f6b43 CY |
453 | ** Continuation lines can now be wrapped at word boundaries |
454 | (word-wrapping). This is controlled by the new per-buffer variable | |
455 | `word-wrap'. Word wrapping does not take place if continuation lines | |
456 | are not shown, e.g. if truncate-lines is non-nil. The most convenient | |
457 | way to enable word-wrapping is using the new minor mode Visual Line | |
458 | mode; in addition to setting `word-wrap' to t, this rebinds some | |
459 | editing commands to work on screen lines rather than text lines. See | |
460 | New Modes and Packages, below. | |
85b1de32 | 461 | |
463c6766 CY |
462 | ** Window management changes |
463 | ||
464 | *** truncate-partial-width-windows now accepts integer values, which | |
465 | specify a minimum window width for partial-width windows, below which | |
7d09b7a6 | 466 | lines are truncated. The default has been changed to 50. |
463c6766 CY |
467 | |
468 | *** The new command balance-windows-area balances windows both | |
469 | vertically and horizontally. | |
470 | ||
8f5cee6a MR |
471 | *** pop-to-buffer now always sets input focus when the popped-to window |
472 | is on a different frame. | |
473 | ||
09e18d03 | 474 | ** Miscellaneous changes: |
97431b7f | 475 | +++ |
09e18d03 CY |
476 | *** C-l is bound to the new command recenter-top-bottom, rather than recenter. |
477 | This moves the current line to window center, top and bottom on | |
478 | successive invokations. | |
15f3eb73 | 479 | |
09e18d03 | 480 | *** scroll-preserve-screen-position also preserves the column position. |
3a8de8dc | 481 | +++ |
09e18d03 CY |
482 | *** If `yank-pop-change-selection' is t, rotating the kill ring also |
483 | updates the selection or clipboard to the current yank, just as M-w | |
484 | would do so with the text it copies to the kill ring. | |
09e18d03 CY |
485 | +++ |
486 | *** C-M-% now shows replacement as it would look in the buffer, with | |
487 | `\N' and `\&' substituted according to the match. Old behavior can be | |
488 | restored by customizing `query-replace-show-replacement'. | |
489 | ||
490 | *** The command shell prompts for the default directory, when it is | |
491 | called with a prefix and the default directory is a remote file name. | |
492 | This is because some file name handlers (like ange-ftp) are not able to | |
493 | run processes remotely. | |
dd4c0a92 | 494 | +++ |
09e18d03 CY |
495 | *** The new command kill-matching-buffers kills buffers whose name |
496 | matches a regexp. | |
497 | ||
b350bdf2 CY |
498 | *** The new commands `pp-macroexpand-expression' and |
499 | `pp-macroexpand-last-sexp' pretty-print macro expansions. | |
8f377a4b | 500 | |
018a960d EZ |
501 | *** The new command `set-file-modes' allows to set file's mode bits. |
502 | The mode bits can be specified in symbolic notation, like with GNU | |
503 | Coreutils, in addition to an octal number. | |
04e6cfff | 504 | +++ |
d334fa1e EZ |
505 | *** If you set find-file-confirm-nonexistent-file to t, then C-x C-f |
506 | requires confirmation before opening a non-existent file. | |
507 | ||
d2c52e26 EZ |
508 | *** `next-error-recenter' specifies how next-error should recenter the |
509 | visited source file. Its value can be a number (for example, 0 for | |
510 | top line, -1 for bottom line), or nil for no recentering. | |
511 | ||
09e18d03 CY |
512 | \f |
513 | * New Modes and Packages in Emacs 23.1 | |
e11910e2 | 514 | |
09e18d03 CY |
515 | ** FIXME add details of new packages imported from lisp/gnus. |
516 | [Maybe some information from doc/misc/gnus-coding.texi can be reused] | |
c06c430f | 517 | |
e11910e2 GM |
518 | ** Auto Composition Mode is a minor mode that composes characters |
519 | automatically when they are displayed. It is globally on by default. | |
520 | It uses `auto-composition-function' (default `auto-compose-chars'). | |
521 | ||
09e18d03 | 522 | ** Bubbles, a new game, is similar to SameGame. |
f6b26818 | 523 | |
7ef39c6e GM |
524 | ** bug-reference.el provides clickable links to bug reports. |
525 | ||
09e18d03 CY |
526 | ** dbus.el provides D-Bus language bindings. |
527 | D-Bus is an inter-process communication mechanism for applications | |
b350bdf2 | 528 | residing on the same host. See the manual for details. |
09e18d03 | 529 | |
5ed3edfa | 530 | ** Doc View mode allows viewing of PDF, PostScript and DVI documents. |
b350bdf2 CY |
531 | One can also search for a regular expression in the document. For |
532 | details, see the commentary in doc-view.el. | |
09e18d03 | 533 | |
4545a339 CY |
534 | PDF and DVI files are now opened in Doc View mode by default. |
535 | ||
536 | In Postcript mode, C-c C-c launches Doc View minor mode for viewing | |
537 | the postscript file. | |
5ed3edfa | 538 | |
b350bdf2 CY |
539 | ** EasyPG provides an interface to the GNU Privacy Guard (GnuPG). |
540 | It includes a GnuPG keyring browser, cryptographic operations on | |
541 | regions and files, and automatic encryption of *.gpg files. For | |
542 | details, see the EasyPG Assistant User's Manual. | |
09e18d03 CY |
543 | |
544 | ** json.el is a library for parsing and generating JSON | |
545 | (JavaScript Object Notation), a lightweight data-interchange format. | |
546 | ||
547 | ** linum.el is a new minor mode to display line numbers for the | |
548 | current buffer. | |
549 | ||
4b4eb083 CY |
550 | ** mairix.el is an interface to mairix, a free tool for indexing and |
551 | searching locally stored mail. It allows you to query mairix and | |
552 | display the search results with Rmail, Gnus and VM. Note that there | |
553 | is an existing Gnus back end, nnmairix.el, which should be used with | |
554 | Maildir/MH setups. | |
555 | ||
e94d0645 | 556 | ** minibuffer-depth-indicate-mode shows the minibuffer depth in the prompt. |
09e18d03 CY |
557 | |
558 | ** nXML Mode | |
559 | This is a new mode for editing XML documents. It allows a schema to | |
560 | be associated with the XML document being edited, using Relax NG as | |
561 | the schema language. The schema is used to provide two key features: | |
562 | ||
563 | *** Continuous validation. nXML validates as you type, highlighting | |
564 | any invalid parts of your document. | |
565 | ||
566 | *** Completion. nXML can assist you in entering an element name, | |
567 | attribute name or data value by using information about what is | |
568 | allowed by the schema in that context. | |
569 | ||
570 | ** proced.el provides a Dired-like interface for operating on processes. | |
571 | Proced makes an Emacs buffer containing a listing of the current | |
572 | processes (using ps(1)). You can use the normal Emacs commands to | |
573 | move around in this buffer, and special Proced commands to operate on | |
574 | the processes listed. | |
575 | ||
576 | ** Remember Mode is a mode for jotting down things to remember. | |
577 | Notes can be saved to a Diary file. For details, see the Remember | |
578 | Manual. | |
579 | ||
580 | ** RST mode is a major mode for editing ReSTructured-Text files. | |
c2d0b538 | 581 | |
7394499e | 582 | +++ |
12f165e9 CY |
583 | ** Visual Line mode provides support for editing by visual lines. |
584 | It turns on word-wrapping in the current buffer, and rebinds C-a, C-e, | |
585 | and C-k to commands that operate by visual lines instead of logical | |
586 | lines. This is a more reliable replacement for longlines-mode. | |
697f6b43 CY |
587 | This can also be turned on using the menu bar, via |
588 | Options -> Line Wrapping in this Buffer -> Word Wrap | |
12f165e9 | 589 | |
0c68a24b MA |
590 | ** xesam.el is an implementation of Xesam, an interface to (desktop) |
591 | search engines like Beagle, Strigi, and Tracker. The Xesam API | |
592 | requires D-Bus for communication. | |
593 | ||
09e18d03 CY |
594 | ** zeroconf.el offers service discovery and service publishing |
595 | interfaces according to the zeroconf specification. It communicates | |
596 | with Avahi, a zeroconf implementation, via D-Bus messages on systems | |
597 | which have installed this software. | |
598 | ||
d332a7a4 GM |
599 | ** There is a new `whitespace' package. |
600 | (The pre-existing one has been renamed to `old-whitespace'.) | |
601 | Now, besides reporting bogus blanks, the whitespace package has a | |
602 | minor mode and a global minor mode to visualize blanks (TAB, (HARD) | |
603 | SPACE and NEWLINE). The visualization is made via faces and/or display | |
604 | table. It can also indicate lines that extend beyond a given column, | |
605 | trailing blanks, and empty lines at the start or end of a buffer. | |
606 | See `whitespace-style' for more details. The `whitespace-action' option | |
607 | specifies what to do when a buffer is visited, killed, or written. | |
4e5a8be9 | 608 | |
09e18d03 CY |
609 | \f |
610 | * Changes in Specialized Modes and Packages in Emacs 23.1 | |
611 | ||
612 | ** Abbrev has been rewritten in Elisp and extended with more flexibility. | |
e047f448 | 613 | *** New functions: abbrev-get, abbrev-put, abbrev-table-get, abbrev-table-put, |
a3709a8c | 614 | abbrev-table-p, abbrev-insert, abbrev-table-menu. |
e047f448 SM |
615 | *** Special hook `abbrev-expand-functions' obsoletes `pre-abbrev-expand-hook'. |
616 | *** `make-abbrev-table', `define-abbrev', `define-abbrev-table' all take | |
617 | extra arguments for arbitrary properties. | |
618 | *** New variable `abbrev-minor-mode-table-alist'. | |
619 | *** `local-abbrev-table' can hold a list of abbrev-tables. | |
620 | *** Abbrevs have now the following special properties: | |
79415279 | 621 | `:count', `:system', `:enable-function', `:case-fixed'. |
e047f448 SM |
622 | *** Abbrev-tables have now the following special properties: |
623 | `:parents', `:case-fixed', `:enable-function', `:regexp', | |
624 | `abbrev-table-modiff'. | |
625 | ||
09e18d03 CY |
626 | ** Apropos |
627 | *** `apropos-library' describes the elements defined in a given library. | |
628 | *** Set `apropos-compact-layout' is you want a more compact (but wider) layout. | |
0253fffa | 629 | |
536ee36e | 630 | +++ |
09e18d03 | 631 | ** Archive Mode has basic support to browse Rar archives. |
dfa2fb2a CY |
632 | Note, however, that the free version of the unrar command only handles |
633 | versions 1 and 2 of the Rar format. | |
0253fffa | 634 | |
09e18d03 | 635 | ** BibTeX mode |
bafbec39 | 636 | |
09e18d03 | 637 | *** New command `bibtex-initialize' (re)initializes BibTeX buffers. |
bafbec39 | 638 | |
09e18d03 CY |
639 | *** New `bibtex-entry-format' options `whitespace', `braces', and |
640 | `string', disabled by default. | |
12bbb989 | 641 | |
09e18d03 CY |
642 | *** New variable `bibtex-cite-matcher-alist' contains rules to |
643 | identify cited keys in BibTeX entries, used by `bibtex-find-crossref'. | |
9097e8af | 644 | |
09e18d03 | 645 | *** Command `bibtex-url' allows multiple URLs per entry. |
4c24d241 | 646 | |
09e18d03 | 647 | ** Calendar and diary |
320bc739 | 648 | |
09e18d03 CY |
649 | +++ |
650 | *** There is a new date style, `iso', essentially year/month/day. | |
651 | The variable `european-calendar-style' is obsolete - use `calendar-date-style'. | |
652 | Similarly, the commands `american-calendar' and `european-calendar' | |
653 | should be replaced by `calendar-set-date-style'. | |
c3bb6fdb | 654 | |
09e18d03 CY |
655 | +++ |
656 | *** The calendar namespace has been rationalized. | |
657 | All functions and variables now begin with a `calendar-', `diary-', or | |
658 | `holiday-' prefix. The various calendar systems have secondary | |
659 | prefixes, eg `calendar-french-'. The old names you are likely to use | |
660 | directly still exist, for the time being, as aliases, but please start | |
661 | using the new names. | |
662 | ||
a43a8a2e | 663 | +++ |
e889393b GM |
664 | *** The whitespace in the calendar layout can be customized. |
665 | See the variables: | |
666 | calendar-left-margin, calendar-intermonth-spacing, calendar-column-width, | |
667 | calendar-day-header-width, and calendar-day-digit-width. | |
668 | ||
a43a8a2e | 669 | +++ |
e889393b GM |
670 | *** Text (e.g. ISO weeks) can be displayed between the calendar months. |
671 | See the variables calendar-intermonth-header and calendar-intermonth-text. | |
672 | ||
a43a8a2e | 673 | +++ |
09e18d03 CY |
674 | *** The function `holiday-chinese' computes holidays on the Chinese calendar. |
675 | It has been used to add items to the list `holiday-oriental-holidays'. | |
676 | ||
a43a8a2e | 677 | --- |
09e18d03 CY |
678 | *** `diary-remind' accepts a negative number -DAYS as a shorthand for |
679 | the list (1 2 ... DAYS). | |
24cdde13 | 680 | |
a6b85944 CY |
681 | ** Change Log mode |
682 | ||
683 | *** The new command C-c C-f (change-log-find-file) finds the file | |
684 | associated with the current log entry. | |
685 | ||
686 | *** The new command C-c C-c (change-log-goto-source) goes to the | |
687 | source code associated with a log entry. | |
688 | ||
76be286d | 689 | ** Compile and grep modes |
14b5f3a6 | 690 | --- |
76be286d DN |
691 | *** The mode-line entry for the *compilation* and *grep* buffer is color coded. |
692 | It has different colors for to show that: (a) the command is still | |
693 | running, (b) successful completion, (c) error. | |
14b5f3a6 | 694 | +++ |
76be286d | 695 | *** compilation-auto-jump-to-first-error tells `compile' to jump to |
813fb3fe | 696 | the first error encountered during compilations. |
14b5f3a6 | 697 | --- |
0b22a5e1 DN |
698 | *** The `cc' alias for C++ files in `grep-file-aliases' has been |
699 | improved. `hh' can be used to match C++ header files and `cchh' both | |
700 | C++ sources and headers. | |
701 | ||
d332a7a4 GM |
702 | ** Copyright |
703 | ||
704 | *** You can specify your copyright holders' names. | |
705 | Only copyright lines with holders matching `copyright-names-regexp' are | |
706 | considered for update. | |
707 | ||
708 | *** Copyrights can be at the end of the buffer. | |
709 | This is controlled by `copyright-at-end-flag' (used by, e.g., change-log-mode). | |
710 | ||
09e18d03 | 711 | ** Custom |
b68769f2 | 712 | +++ |
09e18d03 | 713 | *** defcustom accepts new keyword arguments, `:safe' and `:risky', which |
b68769f2 GM |
714 | set a variable's `safe-local-variable' and `risky-local-variable' property. |
715 | ||
09e18d03 | 716 | ** Diff mode |
536ee36e | 717 | +++ |
09e18d03 CY |
718 | *** diff-refine-hunk highlights word-level details of changes in a diff hunk. |
719 | It's used automatically as you move through hunks, see | |
7381be9d | 720 | diff-auto-refine-mode. It is bound to `C-c C-b'. |
536ee36e | 721 | +++ |
09e18d03 CY |
722 | *** diff-add-change-log-entries-other-window iterates through the diff |
723 | buffer and tries to create ChangeLog entries for each change. | |
724 | It is bound to `C-x 4 A'. | |
536ee36e | 725 | +++ |
d332a7a4 GM |
726 | *** The new function `diff-show-trailing-whitespaces' shows |
727 | trailing whitespace problems in the modified lines of a diff buffer. | |
728 | ||
71554a21 JL |
729 | ** Dired |
730 | ||
731 | *** In Dired, C-x C-q now runs the command wdired-change-to-wdired-mode, | |
732 | and C-x C-q in wdired-mode exits it with asking a question about | |
733 | saving changes. | |
734 | ||
d1949cd5 JL |
735 | *** `&' runs the command `dired-do-async-shell-command' that executes |
736 | the command asynchronously without the need to manually add ampersand | |
737 | to the end of the command. Its output appears in the buffer `*Async Shell | |
738 | Command*'. | |
739 | ||
6d9f0d00 JL |
740 | *** `M-s f C-s' and `M-s f M-C-s' run Isearch that matches only at file names. |
741 | When a new user option `dired-isearch-filenames' is non-nil, then even | |
742 | ordinary Isearch started with `C-s' and `C-M-s' matches only at file names | |
e94d0645 JL |
743 | in the Dired buffer. You can toggle file names matching on or off |
744 | by typing `M-s f' in Isearch mode. | |
6d9f0d00 | 745 | |
cc3236e1 JL |
746 | *** `M-s a C-s' and `M-s a M-C-s' run multi-file Isearch on the marked files. |
747 | They visit the first marked file in the sequence and display the usual Isearch | |
748 | prompt for a string or a regexp where all Isearch commands are available. | |
749 | ||
71554a21 JL |
750 | *** `Q' in Dired provides two new keys for multi-file replacement. |
751 | The upper case key `Y' replaces all remaining matches in all remaining files | |
752 | with no more questions. The upper case key `N' stops doing replacements | |
753 | in the current file and skips to the next file. These multi-file keys | |
754 | are available for all commands that use `tags-query-replace' | |
755 | including `dired-do-query-replace-regexp', `vc-dir-query-replace-regexp', | |
756 | `reftex-query-replace-document'. | |
757 | ||
09e18d03 | 758 | ** Fortran |
77a00355 GM |
759 | +++ |
760 | *** The line length of fixed-form Fortran is not fixed at 72 any more. | |
761 | Customize the variable `fortran-line-length' to change it. | |
117d3cc5 | 762 | |
87aae241 | 763 | +++ |
09e18d03 CY |
764 | *** In Fortran mode, M-; is now bound to the standard comment-dwim, |
765 | rather than fortran-indent-comment. | |
76be286d | 766 | |
09e18d03 CY |
767 | +++ |
768 | *** (The increasingly misnamed) F90 mode supports Fortran 2003 syntax. | |
b592c357 | 769 | |
09e18d03 | 770 | ** Gnus |
6653c6b7 | 771 | |
09e18d03 CY |
772 | *** The Gnus package has been updated |
773 | There are many news features, bug fixes and improvements; see the file | |
774 | GNUS-NEWS or the node "No Gnus" in the Gnus manual for details. | |
db86064f | 775 | |
09e18d03 CY |
776 | *** In Emacs 23, Gnus uses Emacs' new internal coding system `utf-8-emacs' for |
777 | saving articles drafts and ~/.newsrc.eld. These file may not be read | |
778 | correctly in Emacs 22 and below. If you want to Gnus across different Emacs | |
779 | versions, you may set `mm-auto-save-coding-system' to `emacs-mule'. | |
15947a44 | 780 | |
6d496c76 TZ |
781 | *** Password are consistently loaded through `auth-source' |
782 | Gnus can use `auth-source' for POP and IMAP passwords. Also see that | |
783 | `smtpmail' and `url' support `auth-source' for SMTP and HTTP/HTTPS/RSS | |
784 | authentication respectively. | |
785 | ||
09e18d03 CY |
786 | ** Help mode |
787 | *** New macro `with-help-window' should set up help windows better | |
788 | than `with-output-to-temp-buffer' with `print-help-return-message'. | |
8f5cee6a | 789 | |
09e18d03 CY |
790 | *** New option `help-window-select' permits to customize whether help |
791 | window shall be automatically selected when invoking help. | |
8f5cee6a | 792 | |
09e18d03 CY |
793 | *** New variable `help-window-point-marker' permits to specify new |
794 | position of point in help window (for example in `view-lossage'). | |
15947a44 | 795 | |
09e18d03 | 796 | ** Isearch |
3c241617 | 797 | +++ |
4f75e082 JL |
798 | *** New command `isearch-forward-word' bound globally to `M-s w' starts |
799 | incremental word search. New command `isearch-toggle-word' bound to the | |
800 | same key `M-s w' in Isearch mode toggles word searching on or off | |
801 | while Isearch is active. | |
802 | ||
803 | *** New command `isearch-highlight-regexp' bound to `M-s h r' in Isearch | |
804 | mode runs `highlight-regexp' (`hi-lock-face-buffer') with the current | |
805 | search string as its regexp argument. The same key `M-s h r' and | |
806 | other keys on the `M-s h' prefix are bound globally to the command | |
807 | `highlight-regexp' and other hi-lock commands. | |
3c241617 | 808 | +++ |
4f75e082 JL |
809 | *** New command `isearch-occur' bound to `M-s o' in Isearch mode |
810 | runs `occur' with the current search string. The same key `M-s o' | |
811 | is bound globally to the command `occur'. | |
3c241617 | 812 | --- |
4f75e082 JL |
813 | *** Isearch can now search through multiple ChangeLog files. |
814 | When running Isearch in a ChangeLog file, if the search fails, | |
09e18d03 CY |
815 | then another C-s tries searching the previous ChangeLog, |
816 | if there is one (e.g. go from ChangeLog to ChangeLog.12). | |
babc4609 | 817 | This is enabled if multi-isearch-search is non-nil. |
93a142e1 | 818 | |
babc4609 | 819 | *** Two new commands to start Isearch on a list of marked buffers |
cc3236e1 JL |
820 | for buff-menu.el and ibuffer.el are bound to the keys `M-s a C-s' and |
821 | `M-s a M-C-s'. | |
3c241617 CY |
822 | +++ |
823 | *** The part of an Isearch that failed to match is highlighted in | |
824 | `isearch-fail' face. | |
5d503af9 | 825 | |
4f75e082 JL |
826 | *** `C-h C-h' in Isearch mode displays isearch-specific Help screen, |
827 | `C-h b' displays all Isearch key bindings, `C-h k' displays the full | |
828 | documentation of the given Isearch key sequence, `C-h m' displays | |
829 | documentation of Isearch mode. All the rest Help commands exit Isearch mode | |
09e18d03 | 830 | and execute their global definitions. |
3c241617 | 831 | +++ |
09e18d03 CY |
832 | *** When started in the minibuffer, Isearch searches in the minibuffer |
833 | history. See `Minibuffer changes', above. | |
2793c9bb | 834 | |
66863844 BW |
835 | +++ |
836 | ** MH-E | |
1e9b0fb2 | 837 | |
66863844 BW |
838 | *** Upgraded to MH-E version 8.1. See MH-E-NEWS for details. |
839 | ||
09e18d03 CY |
840 | ** Python |
841 | *** The file etc/emacs.py now supports both Python 2 and 3, meaning | |
842 | that either version can be used as inferior Python by python.el. | |
c5578d5f | 843 | |
09e18d03 CY |
844 | *** Python mode now has `pdbtrack' functionality. When using pdb to |
845 | debug a Python program, pdbtrack notices the pdb prompt and displays | |
846 | the source file and line that the program is stopped at, much the same | |
847 | way as gud-mode does for debugging C programs with gdb. | |
2793c9bb | 848 | |
1e9b0fb2 MA |
849 | ** Recentf |
850 | ||
851 | *** The default value of `recentf-keep' prevents from checking of | |
852 | remote files, if there is no established connection to the | |
853 | corresponding remote host. | |
854 | ||
9721264a MR |
855 | ** TeX modes |
856 | ||
857 | *** New option latex-indent-within-escaped-parens | |
858 | permits to customize indentation of LaTeX environments delimited | |
859 | by escaped parens. | |
860 | ||
09e18d03 | 861 | ** T-mouse Mode |
8eb8f634 | 862 | --- |
09e18d03 CY |
863 | *** If the gpm mouse server is running and t-mouse-mode is enabled, |
864 | Emacs uses a Unix socket in a GNU/Linux console to talk to server, | |
865 | rather than faking events using the client program mev. This C level | |
866 | approach provides mouse highlighting and help echoing in the | |
867 | minibuffer. | |
2793c9bb | 868 | |
cc213f24 MA |
869 | +++ |
870 | ** Tramp | |
871 | ||
872 | *** New connection methods. | |
873 | The new methods "plinkx", "plink2", "psftp", "sftp" and "fish" have | |
874 | been introduced. There are also new so-called gateway methods | |
875 | "tunnel" and "socks". | |
876 | ||
877 | *** Multihop syntax has been removed. | |
878 | The pseudo-method "multi" has been removed. Instead of, multi hops | |
879 | can be specified by the new variable `tramp-default-proxies-alist'. | |
880 | ||
881 | *** More default settings. | |
882 | Default values can be set via the variables `tramp-default-user', | |
883 | `tramp-default-user-alist' and `tramp-default-host'. | |
884 | ||
885 | *** Connection information is cached. | |
886 | In order to reduce connection setup, information about used | |
887 | connections are kept persistent in a file. The name of this file is | |
888 | defined in the variable `tramp-persistency-file-name'. | |
889 | ||
890 | *** Control of remote processes. | |
891 | Running processes on a remote host can be controlled by settings in | |
892 | `tramp-remote-path' and `tramp-remote-process-environment'. | |
893 | ||
894 | *** Success of remote copy is checked. | |
895 | When the variable `file-precious-flag' is set, the success of a remote | |
896 | file copy is checked via the file's checksum. | |
897 | ||
7cba69f2 MA |
898 | *** Passwords can be read from an authentification file. |
899 | Tramp uses the package `auth-source' to read passwords from a file, if | |
900 | necessary. | |
901 | ||
289aee1c | 902 | ** VC and related modes |
ee0f0556 | 903 | +++ |
09e18d03 CY |
904 | *** VC now supports applying VC operations to a set of files at a time. |
905 | This enables VC to work much more effectively with changeset-oriented | |
906 | version-control systems such as Subversion, GNU Arch, Mercurial, Git | |
907 | and Bzr. VC will now pass a multiple-file commit to these systems as | |
908 | a single changeset. | |
04e6cfff | 909 | +++ |
09e18d03 | 910 | *** vc-dir is a new command that displays file names and their VC |
289aee1c DN |
911 | status. It allows to apply various VC operations to a file, a |
912 | directory or a set of files/directories. | |
04e6cfff | 913 | +++ |
09e18d03 | 914 | *** Clicking on the VC mode-line entry now pops the VC menu. |
04e6cfff | 915 | +++ |
09e18d03 | 916 | *** The VC mode-line entry now has a tooltip that explains the VC file status. |
ee0f0556 | 917 | +++ |
09e18d03 CY |
918 | *** In VC Annotate mode, for VC systems that support changesets, you can |
919 | see the diff for the whole changeset (not only for the current file) | |
ee0f0556 CY |
920 | by typing the D key. Using the "Show changeset diff of revision at |
921 | line" menu entry does the same thing. | |
922 | +++ | |
e86fa02b | 923 | *** In VC Annotate mode, you can type v to toggle the annotation visibility. |
ee0f0556 | 924 | +++ |
09e18d03 CY |
925 | *** In VC Annotate mode, you can type f to show the file revision on |
926 | the current line. | |
04e6cfff | 927 | --- |
09e18d03 CY |
928 | *** Asynchronous VC commands display [Waiting...] in the mode-line |
929 | of the corresponding buffer as long as the asynchronous process is | |
930 | active. | |
04e6cfff | 931 | +++ |
09e18d03 CY |
932 | *** Log entries can be modified using the key "e" in log-view. |
933 | For now only CVS, RCS, SCCS and SVN support this functionality. | |
934 | This is done by the `modify-change-comment' backend function. | |
04e6cfff | 935 | +++ |
09e18d03 CY |
936 | *** In log-view-mode, for VC systems that support changesets, you can |
937 | see the diff for the whole changeset (not only for the current file) | |
938 | by typing the D key or using the "Changeset Diff" menu entry. | |
04e6cfff | 939 | +++ |
289aee1c DN |
940 | *** In Log Edit mode, C-c C-d now shows the diff for the files involved. |
941 | ||
942 | *** vc-git supports the "git grep" command. | |
04e6cfff | 943 | +++ |
09e18d03 CY |
944 | *** VC Support for Meta-CVS has been removed for lack of maintainer able |
945 | to update it to the new VC. | |
cf944fa4 | 946 | |
d15f7b68 GM |
947 | ** Miscellaneous |
948 | ||
949 | *** comint-mode uses `start-file-process' now (see Lisp Changes). | |
cc213f24 MA |
950 | If `default-directory' is a remote file name, subprocesses are started |
951 | on the corresponding remote system. | |
952 | ||
09e18d03 CY |
953 | *** Eldoc highlights the function argument under point |
954 | with the face `eldoc-highlight-function-argument'. | |
e228b7bc | 955 | +++ |
09e18d03 | 956 | *** In Etags, the --members option is now the default. |
fffa137c | 957 | Use --no-members if you want the old default behavior of not tagging |
09e18d03 | 958 | struct members in C, members variables in C++ and variables in PHP. |
14b5f3a6 | 959 | +++ |
09e18d03 CY |
960 | *** The `gdb' command only works with the graphical interface now. |
961 | Use `gud-gdb' if you want the (old) text command mode. | |
962 | ||
963 | *** goto-address.el provides two new minor modes, goto-address-mode and | |
964 | goto-address-prog-mode, which buttonize URLS and email addresses. | |
965 | ||
966 | *** The new command `eshell/info' runs info in an eshell buffer. | |
3cf86f00 | 967 | |
4d1e89e3 GM |
968 | *** The new variable `ffap-rfc-directories' specifies a list of local |
969 | directories in which `ffap-rfc' will first search for RFCs. | |
970 | ||
09e18d03 CY |
971 | *** hide-ifdef-mode allows shadowing ifdef-blocks instead of hiding them. |
972 | See option `hide-ifdef-shadow' and function `hide-ifdef-toggle-shadowing'. | |
973 | ||
974 | *** `icomplete-prospects-height' now supercedes `icomplete-prospects-length'. | |
975 | ||
976 | *** Info displays breadcrumbs in the header of the page. | |
977 | See Info-breadcrumbs-depth to control it. | |
978 | ||
d2c98acc | 979 | *** net-utils has an `iwconfig' command, similar to the existing `ifconfig'. |
b7bfcc8a | 980 | It is used to configure wireless interfaces. |
d2c98acc | 981 | |
09e18d03 CY |
982 | *** The pcmpl-unix package supports hostname completion for ssh and scp. |
983 | ||
984 | *** sgml-electric-tag-pair-mode lets you simultaneously edit matched tag pairs. | |
985 | ||
986 | *** smerge-refine highlights word-level details of changes in conflict. | |
7381be9d TTN |
987 | It's used automatically as you move through conflicts, see |
988 | smerge-auto-refine-mode. | |
09e18d03 CY |
989 | |
990 | *** talk.el has been extended for multiple tty support. | |
991 | ||
992 | *** A new command `display-time-world' has been added to the Time | |
993 | package. It creates a buffer with an updating time display using | |
994 | several time zones. | |
995 | ||
996 | *** The appearance of superscript and subscript in TeX is more customizable. | |
997 | See the documentation of the variables: tex-fontify-script, | |
998 | tex-font-script-display, tex-suscript-height-ratio, and | |
999 | tex-suscript-height-minimum. | |
1000 | ||
1001 | *** view-remove-frame-by-deleting is now by default t | |
1002 | since users found iconification of view-mode frames distracting. | |
1003 | ||
1004 | *** WoMan tries to add locale-specific manual page directories to the | |
1005 | search path. This can be disabled by setting `woman-locale' to nil. | |
1006 | ||
0bfd685e GM |
1007 | \f |
1008 | * Changes in Emacs 23.1 on non-free operating systems | |
8ab314f9 | 1009 | |
203553fd JPW |
1010 | ** Case is now considered significant in completion on MS-Windows. |
1011 | The default value of `completion-ignore-case' is now nil on | |
1012 | MS-Windows, the same as it is for other operating systems. The | |
1013 | variable doesn't apply to reading a file name -- in that case Emacs | |
1014 | heeds `read-file-name-completion-ignore-case' instead. | |
1015 | ||
672f99b6 JR |
1016 | --- |
1017 | ** IPv6 is supported on MS-Windows. | |
1018 | Emacs now supports IPv6 on Windows XP and later, and earlier versions | |
2660a9da | 1019 | of Windows with third party IPv6 stacks installed. In Emacs 22, IPv6 was |
672f99b6 JR |
1020 | supported on other platforms, but not on Windows due to using the winsock |
1021 | 1.1 header file, even though Emacs was linking to the winsock 2 library. | |
1022 | ||
0d22595d | 1023 | --- |
6e344060 JR |
1024 | ** Busy cursor (hourglass) now displays on MS-Windows. |
1025 | When Emacs is busy, an hourglass mouse cursor is displayed on Windows. | |
2660a9da JR |
1026 | In Emacs 22 only X supported the busy cursor. |
1027 | ||
1028 | --- | |
1029 | ** Battery status is available on MS-Windows | |
1030 | Emacs can now display the battery status in the mode-line when enabled with | |
1031 | display-battery-mode or from the Options menu. More verbose battery | |
1032 | information is also available with the command `battery'. In Emacs 22 | |
1033 | battery status was supported only on GNU/Linux and Mac. | |
6e344060 | 1034 | |
3280c5c5 JR |
1035 | ** More keys available on MS-Windows. |
1036 | Keys normally associated with IMEs, and some exotic keys not normally found | |
1037 | on standard keyboards have been given names so they can be bound to functions | |
1038 | inside Emacs. If there are keys on your keyboard that have not been exposed | |
1039 | to Emacs in the past, try C-h k to see if they are available now. | |
1040 | ||
1041 | Emacs can now bind functions to the extra buttons for media player and | |
1042 | browser control present on some keyboards. These buttons are disabled | |
1043 | by default, since enabling them prevents their system-wide use when | |
1044 | Emacs has focus. To enable them, set the variable | |
0caa490b | 1045 | w32-pass-multimedia-buttons to nil. See the doc string of that variable |
3280c5c5 | 1046 | for the list of extra keys that are available. |
2660a9da | 1047 | |
4a263588 JR |
1048 | ** BDF fonts no longer supported on MS-Windows. |
1049 | The font backend was completely rewritten for this release. The focus | |
1050 | on Windows has been getting acceptable performance and full unicode | |
1051 | support, including complex script shaping for native Windows fonts. A | |
1052 | rewrite of the BDF font support has not happened due to lack of time | |
1053 | and developers. If demand still exists for such a backend even with | |
1054 | the improved language support for native Windows fonts, future | |
1055 | development in this direction will most likely be based on the | |
1056 | freetype library, giving access to a wider range of font formats. | |
1057 | ||
0bfd685e GM |
1058 | \f |
1059 | * Incompatible Lisp Changes in Emacs 23.1 | |
8ec65cd7 | 1060 | |
eaf4b689 | 1061 | +++ |
fd9440c5 | 1062 | ** Variables cannot be both buffer-local and frame-local any more. |
a9b08254 | 1063 | |
45e46036 | 1064 | +++ |
fc944cd4 | 1065 | ** `functionp' returns nil for special forms. |
65f81a0b | 1066 | I.e., it only returns t for objects that can be passed to `funcall'. |
fc944cd4 | 1067 | |
6fa4e7f5 | 1068 | +++ |
d82c3d44 GM |
1069 | ** The behavior of map-char-table has changed. It may call the |
1070 | specified function with a cons (FROM . TO) as a key if characters in | |
1071 | that range have the same value. | |
1072 | ||
b350bdf2 CY |
1073 | ** Process changes |
1074 | +++ | |
1075 | *** The function `dired-call-process' has been removed. | |
03605a28 | 1076 | +++ |
b350bdf2 CY |
1077 | *** The multibyteness of process filters is now determined by the |
1078 | coding-system used for decoding. The functions | |
1079 | `process-filter-multibyte-p' and `set-process-filter-multibyte' are | |
1080 | obsolete. | |
03605a28 | 1081 | |
87aae241 | 1082 | --- |
777ea444 | 1083 | ** The variable `byte-compile-warnings' can now be a list starting with `not', |
0caa490b | 1084 | meaning to disable the specified warnings. The meaning of this list |
777ea444 | 1085 | may therefore be the reverse of what you expect (of course, this is |
0caa490b | 1086 | only an issue if you make use of the new `not' syntax). Rather than |
777ea444 GM |
1087 | checking/manipulating elements directly, use the new functions |
1088 | `byte-compile-warning-enabled-p', `byte-compile-disable-warning', and | |
1089 | `byte-compile-enable-warning.' | |
1090 | ||
9cf52b11 | 1091 | +++ |
69df9d6d GM |
1092 | ** `mode-name' is no longer guaranteed to be a string. |
1093 | Use `(format-mode-line mode-name)' to ensure a string value. | |
1094 | ||
b350bdf2 CY |
1095 | ** Internationalization changes |
1096 | ||
1097 | *** The value of the function `charset-id' is now always 0. | |
1098 | ||
1099 | *** The functions `register-char-codings' and `coding-system-spec' | |
1100 | have been removed. | |
1101 | ||
1102 | *** The cpXXX coding systems are now supported automatically. | |
1103 | The functions cp-...-codepage, which you had to use in Emacs 22 to | |
1104 | enable support for these coding systems, have been deleted. | |
1105 | ||
1106 | *** The following features have been removed. They were used for | |
85a1f98d GM |
1107 | displaying various scripts with specific fonts, and are no longer |
1108 | needed now that OpenType font support is available: | |
1109 | ||
b350bdf2 | 1110 | **** `devanagari' and `devan-util', and all associated devanagari-* and |
85a1f98d GM |
1111 | dev-* functions and variables (formerly used for Devanagari script). |
1112 | ||
b350bdf2 | 1113 | **** `kannada' and `knd-util', and all associated kannada-* and knd-* |
85a1f98d GM |
1114 | functions and variables (formerly used for Kannada script). |
1115 | ||
b350bdf2 | 1116 | **** `malayalam' and `mlm-util', and all associated malayalam-* and |
85a1f98d GM |
1117 | mlm-* functions and variables (formerly used for Malayalam script). |
1118 | ||
b350bdf2 | 1119 | **** `tamil' and `tml-util, and all associated tamil-* and tml-* |
85a1f98d | 1120 | functions and variables (formerly used for Tamil script). |
6a6b4d7d | 1121 | |
0bfd685e GM |
1122 | \f |
1123 | * Lisp Changes in Emacs 23.1 | |
8ab314f9 | 1124 | |
0296a35e SM |
1125 | ** New coding system alias `emacs-internal'. |
1126 | ||
a65f6a85 | 1127 | +++ |
5d692341 EZ |
1128 | ** New primitives `list-system-processes' and `system-process-attributes' |
1129 | let Lisp programs access the processes that are running on the local | |
1130 | machine. See the doc strings of these functions for more details. | |
1131 | Not all platforms support accessing this information; on those that | |
1132 | don't, these primitives will return nil. | |
1133 | ||
b350bdf2 CY |
1134 | +++ |
1135 | ** New variable `user-emacs-directory'. | |
1136 | Use this instead of "~/.emacs.d". | |
43f8b275 | 1137 | |
ee666f84 | 1138 | +++ |
b350bdf2 CY |
1139 | ** If a local hook function has a non-nil `permanent-local-hook' |
1140 | property, `kill-all-local-variables' does not remove it from the local | |
1141 | value of the hook variable; it remains even if you change major modes. | |
09e18d03 | 1142 | |
4fb04348 | 1143 | +++ |
b350bdf2 CY |
1144 | ** `frame-inherited-parameters' lets new frames inherit parameters from |
1145 | the selected frame. | |
09e18d03 | 1146 | |
4fb04348 | 1147 | +++ |
b350bdf2 CY |
1148 | ** New keymap `input-decode-map' overrides like key-translation-map, but |
1149 | applies before function-key-map. Also it is terminal-local contrary to | |
1150 | key-translation-map. Terminal-specific key-sequences are generally added to | |
1151 | this map rather than to function-key-map now. | |
09e18d03 | 1152 | |
a33a1f2a | 1153 | +++ |
b350bdf2 | 1154 | ** `ignore-errors' is now a standard macro (does not require the CL package). |
09e18d03 | 1155 | |
8e8c1a72 | 1156 | +++ |
b350bdf2 CY |
1157 | ** `interprogram-paste-function' can now return one string or a list |
1158 | of strings. In the latter case, Emacs puts the second and following | |
1159 | strings on the kill ring. | |
09e18d03 | 1160 | |
b350bdf2 CY |
1161 | +++ |
1162 | ** In `condition-case', a handler can specify "let the debugger run first". | |
1163 | You do this by writing `debug' in the list of conditions to be handled, | |
1164 | like this: | |
09e18d03 | 1165 | |
b350bdf2 CY |
1166 | (condition-case nil |
1167 | (foo bar) | |
1168 | ((debug error) nil)) | |
09e18d03 | 1169 | |
dd4c0a92 | 1170 | +++ |
b350bdf2 | 1171 | ** clone-indirect-buffer now runs the clone-indirect-buffer-hook. |
09e18d03 | 1172 | |
52441368 | 1173 | +++ |
b350bdf2 CY |
1174 | ** `beginning-of-defun-function' now takes one argument, the count |
1175 | given to `beginning-of-defun'. | |
09e18d03 | 1176 | |
b350bdf2 CY |
1177 | +++ |
1178 | ** `file-remote-p' has new optional parameters IDENTIFICATION and CONNECTED. | |
1179 | IDENTIFICATION specifies which part of the remote identifier has to be | |
1180 | returned. With CONNECTED passed non-nil, it is checked whether a | |
1181 | remote connection has been established already. | |
09e18d03 | 1182 | |
87aae241 | 1183 | +++ |
b350bdf2 CY |
1184 | ** The new macro `declare-function' suppresses compiler warnings about |
1185 | undefined functions. | |
a1562258 | 1186 | |
b350bdf2 | 1187 | ** Changes to interactive function handling |
8ba31f36 | 1188 | |
1184ea39 | 1189 | +++ |
b350bdf2 CY |
1190 | *** The new interactive spec code ^ says to first call |
1191 | handle-shift-selection if shift-select-mode is non-nil, before reading | |
1192 | the command arguments. This is used for shift-selection (see above). | |
e2947429 | 1193 | |
c3aaf1d7 | 1194 | +++ |
b350bdf2 CY |
1195 | *** Built-in functions can now have an interactive specification that |
1196 | is not a prompt string. If the `intspec' parameter of a `DEFUN' | |
1197 | starts with a `(', the string is evaluated as a Lisp form. | |
e2947429 | 1198 | |
c3aaf1d7 | 1199 | +++ |
b350bdf2 CY |
1200 | *** The interactive-form of a function can be added post-facto via the |
1201 | `interactive-form' symbol property. Mostly useful to add complex | |
1202 | interactive forms to subroutines. | |
d87be1df | 1203 | |
b350bdf2 | 1204 | ** Region changes |
3ae459e5 | 1205 | |
2de17c73 | 1206 | +++ |
b350bdf2 CY |
1207 | *** Commands should use `use-region-p' to test whether there is |
1208 | an active region that they should operate on. | |
3ae459e5 | 1209 | |
b350bdf2 CY |
1210 | *** `region-active-p' returns non-nil when Transient Mark mode is |
1211 | enabled and there is an active region. This is NOT the best function | |
1212 | to use to test whether a command should operate on the region instead | |
1213 | of the usual behavior -- for that, use `use-region-p'. | |
58555d81 | 1214 | |
1184ea39 | 1215 | +++ |
b350bdf2 CY |
1216 | *** If a command sets `transient-mark-mode' to (only . OLDVAL), that |
1217 | means to activate transient-mark-mode temporarily, until the next | |
1218 | unshifted point motion command or mark deactivation. Afterwards, | |
1219 | reset transient-mark-mode to the value OLDVAL. The values `only' and | |
1220 | `identity', introduced in Emacs 22, are now deprecated. | |
e5c4079c | 1221 | |
b350bdf2 | 1222 | ** Emacs session information |
13cda5f9 | 1223 | |
f36acfd9 | 1224 | +++ |
b350bdf2 CY |
1225 | *** The new variables `before-init-time' and `after-init-time' record the |
1226 | value of `current-time' before and after Emacs loads the init files. | |
a2bc5bdd | 1227 | |
53728487 | 1228 | +++ |
b350bdf2 | 1229 | *** The new function `emacs-uptime' returns the uptime of an Emacs instance. |
d82c3d44 | 1230 | |
53728487 | 1231 | +++ |
b350bdf2 CY |
1232 | *** The new function `emacs-init-time' returns the duration of the |
1233 | Emacs initialization. | |
50bfa18a | 1234 | |
b350bdf2 | 1235 | ** Changes affecting display-buffer |
39d0bf74 | 1236 | |
43c59a3d | 1237 | +++ |
b350bdf2 CY |
1238 | *** New value nil for split-height-threshold inhibits vertical splitting |
1239 | unless there's no other window. | |
59b5d020 | 1240 | |
43c59a3d | 1241 | +++ |
b350bdf2 | 1242 | *** New option split-width-threshold controls horizontal splitting. |
426e6ba0 | 1243 | |
43c59a3d | 1244 | +++ |
b350bdf2 | 1245 | *** A window can be split horizontally even when it's not full-width. |
426e6ba0 | 1246 | |
43c59a3d | 1247 | +++ |
b350bdf2 CY |
1248 | *** New option split-window-preferred-function can be set to a function |
1249 | to override the default splitting mechanism of display-buffer. | |
2d105adf | 1250 | |
43c59a3d | 1251 | +++ |
f691c216 CY |
1252 | *** If pop-up-frames has the value `graphic-only', display-buffer only |
1253 | makes a separate frame on graphic displays. | |
1254 | ||
205f3a3b MR |
1255 | ** Ordering of recently selected windows and buffer list |
1256 | ||
1257 | *** select-frame and set-frame-selected-window have new optional | |
1258 | argument NORECORD. | |
1259 | ||
1260 | *** New macro save-selected-window-norecord | |
1261 | ||
781459a4 CY |
1262 | ** Window parameters can now be defined. |
1263 | These are analogous to frame parameters, but are associated with | |
1264 | individual windows. | |
1265 | ||
1266 | *** The new functions window-parameters, window-parameter, and | |
1267 | set-window-parameter are used to query and set window parameters. | |
1268 | ||
b350bdf2 | 1269 | ** Minibuffer and completion changes |
b9694062 | 1270 | +++ |
b350bdf2 | 1271 | *** A list of default values can be specified for the DEFAULT argument of |
b9694062 JL |
1272 | functions `read-from-minibuffer', `read-string', `read-command', |
1273 | `read-variable', `read-buffer', `completing-read'. Elements of this list | |
1274 | are available for inserting into the minibuffer by typing `M-n'. | |
1275 | For empty input these functions return the first element of this list. | |
1276 | ||
6d4913f0 | 1277 | +++ |
90993beb | 1278 | *** New function `read-regexp' uses the regexp history and some useful |
4f75e082 | 1279 | regexp defaults (string at point, last Isearch/replacement regexp/string) |
90993beb JL |
1280 | via M-n when reading a regexp in the minibuffer. |
1281 | ||
6d4913f0 | 1282 | +++ |
b350bdf2 CY |
1283 | *** minibuffer-local-must-match-filename-map is now named |
1284 | minibuffer-local-filename-must-match-map. | |
66dc1ca2 | 1285 | |
04d36203 | 1286 | --- |
b350bdf2 CY |
1287 | *** `all-completions' may now return the base size in the last cdr. |
1288 | Since this means the returned list is not properly nil-terminated, this | |
1289 | is an incompatible change and is thus enabled by the new variable | |
1290 | completion-all-completions-with-base-size. | |
66dc1ca2 | 1291 | |
6d4913f0 | 1292 | +++ |
b350bdf2 CY |
1293 | *** The `require-match' argument to `completing-read' accepts a new value |
1294 | `confirm-only'. | |
d03b9b31 | 1295 | |
b350bdf2 CY |
1296 | ** Search and replacement changes |
1297 | +++ | |
1298 | *** The regexp form \(?<num>:<regexp>\) specifies the group number explicitly. | |
1299 | +++ | |
1300 | *** New function `match-substitute-replacement' returns the result of | |
1301 | `replace-match' without actually using it in the buffer. | |
c60d543d | 1302 | |
80120f13 | 1303 | +++ |
b350bdf2 | 1304 | *** The new variable `replace-search-function' determines the function |
80120f13 EZ |
1305 | to use for searching in query-replace and replace-string. The |
1306 | function it specifies is called by `perform-replace' when its 4th | |
1307 | argument is nil. | |
3ae459e5 | 1308 | |
80120f13 | 1309 | +++ |
b350bdf2 CY |
1310 | *** The new variable `replace-re-search-function' determines the |
1311 | function to use for searching in `query-replace-regexp', | |
1312 | `replace-regexp', `query-replace-regexp-eval', and | |
80120f13 EZ |
1313 | `map-query-replace-regexp'. The function it specifies is called by |
1314 | `perform-replace' when its 4th argument is non-nil. | |
4f4a84ec | 1315 | |
2c0b8144 | 1316 | +++ |
4f75e082 JL |
1317 | *** New keymap `search-map' bound to `M-s' provides global bindings |
1318 | for search related commands. | |
1319 | ||
2c0b8144 | 1320 | +++ |
4f75e082 | 1321 | *** New keymap `multi-query-replace-map' contains additonal keys bound |
71554a21 JL |
1322 | to `automatic-all' and `exit-current' for multi-buffer interactive replacement. |
1323 | ||
2c0b8144 | 1324 | --- |
b350bdf2 CY |
1325 | *** The variable `inhibit-changing-match-data', if non-nil, prevents |
1326 | the search and match primitives from changing the match data. | |
967b2682 | 1327 | |
2c0b8144 | 1328 | --- |
3c241617 CY |
1329 | *** New functions `word-search-forward-lax' and `word-search-backward-lax'. |
1330 | These are like `word-search-forward and `word-search-backward', except | |
1331 | that the end of the search string need not match a word boundary, | |
1332 | unless it ends in whitespace. | |
1333 | ||
b350bdf2 | 1334 | ** File handling changes |
8bf5c8a6 | 1335 | |
018a960d | 1336 | +++ |
b350bdf2 CY |
1337 | *** set-file-modes is now interactive and can take the mode value in |
1338 | symbolic notation thanks to auxiliary functions. | |
291703b5 EZ |
1339 | +++ |
1340 | *** file-local-variables-alist stores an alist of file-local | |
1341 | variables defined in the current buffer. | |
1342 | ||
b350bdf2 CY |
1343 | ** Process changes |
1344 | +++ | |
1345 | *** The new function `start-file-process' is similar to `start-process', | |
1346 | but obeys file handlers. The file handler is chosen based on | |
1347 | `default-directory'. The functions `start-file-process-shell-command' | |
1348 | and `process-file-shell-command' are also new; they call internally | |
1349 | `start-file-process' and `process-file', respectively. | |
1350 | ||
583d8b3c | 1351 | +++ |
b350bdf2 CY |
1352 | *** The new function `process-lines' executes an external program and |
1353 | returns its output as a list of lines. | |
63571b5a | 1354 | |
d82c3d44 GM |
1355 | ** Character code, representation, and charset changes. |
1356 | ||
c4526e93 | 1357 | +++ |
0caa490b | 1358 | The character code space is now 0x0..0x3FFFFF with no gap. |
d82c3d44 GM |
1359 | Characters of code 0x0..0x10FFFF are Unicode characters of the same code points. |
1360 | Characters of code 0x3FFF80..0x3FFFFF are raw 8-bit bytes. | |
1361 | ||
c9a1876d | 1362 | +++ |
0caa490b | 1363 | Generic characters no longer exist. |
d82c3d44 | 1364 | |
c4526e93 | 1365 | +++ |
b350bdf2 CY |
1366 | In buffers and strings, characters are represented by UTF-8 byte |
1367 | sequences in a multibyte buffer/string. | |
d82c3d44 | 1368 | |
b350bdf2 CY |
1369 | The concept of a charset has changed. A single character may belong |
1370 | to multiple charsets (e.g. a-grave, U+00E0, belongs to charsets | |
1371 | unicode, iso-8859-1, iso-8859-3, etc). | |
d82c3d44 | 1372 | |
c9a1876d EZ |
1373 | *** The functions `split-char' and `make-char' now accept up to 4 |
1374 | positional codes instead of just 2. | |
1375 | ||
d82c3d44 GM |
1376 | *** The functions `encode-char' and `decode-char' now accept any character sets. |
1377 | ||
1378 | *** The function `define-charset' now accepts a completely different | |
1379 | form of arguments (old-style arguments still work). | |
1380 | ||
d82c3d44 GM |
1381 | *** The value of the function `char-charset' depends on the current |
1382 | priorities of charsets. | |
1383 | ||
d82c3d44 GM |
1384 | *** The function get-char-code-property now accepts many Unicode base |
1385 | character properties. They are `name', `general-category', | |
1386 | `canonical-combining-class', `bidi-class', `decomposition', | |
1387 | `decimal-digit-value', `digit-value', `numeric-value', `mirrored', | |
1388 | `old-name', `iso-10646-comment', `uppercase', `lowercase', and | |
1389 | `titlecase'. | |
1390 | ||
b350bdf2 CY |
1391 | *** The functions `modify-syntax-entry' and `modify-category-entry' now |
1392 | accept a cons of characters as the first argument, and modify all | |
1393 | entries in that range of characters. | |
d82c3d44 | 1394 | |
b350bdf2 CY |
1395 | +++ |
1396 | *** `translation-table-for-input' is now obsolete. | |
d82c3d44 | 1397 | |
b350bdf2 | 1398 | *** New functions: |
d82c3d44 | 1399 | |
b350bdf2 CY |
1400 | **** `characterp' returns t if and only if the argument is a character. |
1401 | This replaces `char-valid-p', which is now obsolete. | |
d82c3d44 | 1402 | |
b350bdf2 | 1403 | **** `max-char' returns the maximum character code (currently #x3FFFFF). |
d82c3d44 | 1404 | |
b350bdf2 CY |
1405 | **** `define-charset-alias' defines an alias of a charset. |
1406 | ||
1407 | **** `set-charset-priority' sets priorities of charsets. | |
1408 | ||
1409 | **** `charset-priority-list' returns a prioritized list of charsets. | |
1410 | ||
1411 | **** `unibyte-string' makes a unibyte string from bytes. | |
1412 | ||
1413 | **** `define-char-code-property' defines a character code property. | |
1414 | ||
1415 | **** `char-code-property-description' returns the description string of | |
1416 | a character code property. | |
1417 | ||
1418 | *** New variables: | |
1419 | ||
1420 | **** `find-word-boundary-function-table' is a char-table of functions to | |
1421 | search for a word boundary. | |
1422 | ||
1423 | **** `char-script-table' is a char-table of script names. | |
1424 | ||
1425 | **** `char-width-table' is a char-table of character widths. | |
1426 | ||
1427 | **** `print-charset-text-property' controls how to handle `charset' text | |
1428 | property on printing a string. | |
1429 | ||
1430 | **** `printable-chars' is a char-table of printable characters. | |
d82c3d44 | 1431 | |
505d8756 | 1432 | ** Code conversion changes |
d82c3d44 GM |
1433 | |
1434 | *** The new function `define-coding-system' should be used to define a | |
1435 | coding system instead of `make-coding-system' (which is now obsolete). | |
1436 | ||
1437 | *** The functions `encode-coding-region' and `decode-coding-region' | |
1438 | have an optional 4th argument to specify where the result of | |
1439 | conversion should go. | |
1440 | ||
1441 | *** The functions `encode-coding-string' and `decode-coding-string' | |
1442 | have an optional 4th argument specifying a buffer to store the result | |
1443 | of conversion. | |
1444 | ||
b350bdf2 | 1445 | *** The functions `set-coding-priority' and `make-coding-system' are obsolete. |
d82c3d44 | 1446 | |
b350bdf2 | 1447 | *** New functions: |
d82c3d44 | 1448 | |
b350bdf2 CY |
1449 | **** `with-coding-priority' executes Lisp code using the specified |
1450 | coding system priority order. | |
d82c3d44 | 1451 | |
b350bdf2 CY |
1452 | **** `check-coding-systems-region' checks if the text in the region is |
1453 | encodable by the specified coding systems. | |
d82c3d44 | 1454 | |
b350bdf2 | 1455 | **** `coding-system-aliases' returns a list of aliases of a coding system. |
d82c3d44 | 1456 | |
b350bdf2 CY |
1457 | **** `coding-system-charset-list' returns a list of charsets supported |
1458 | by a coding system. | |
d82c3d44 | 1459 | |
b350bdf2 CY |
1460 | **** `coding-system-priority-list' returns a list of coding systems |
1461 | ordered by their priorities. | |
1462 | ||
1463 | **** `set-coding-system-priority' sets priorities of coding systems. | |
d82c3d44 GM |
1464 | |
1465 | ** There is a new input method, Robin, different from Quail. | |
0caa490b | 1466 | It has three functionalities: |
d82c3d44 GM |
1467 | i) a simple input method (converts an ASCII sequence into a string). |
1468 | ii) converts an existing buffer substring into another string | |
1469 | iii) reverse conversion (each character produced by a | |
1470 | robin rule can hold the original ASCII sequence as a char-code-property) | |
1471 | ||
1472 | *** The new function `robin-define-package' defines a Robin package. | |
1473 | ||
1474 | *** The new function `robin-modify-package' modifies an existing Robin package. | |
1475 | ||
1476 | *** The new function `robin-use-package' starts using a Robin package | |
1477 | as an input method. | |
1478 | ||
888d7d86 KH |
1479 | *** The new function `string-to-unibyte' is like `string-as-unibyte' |
1480 | but signals an error if STRING contains a non-ASCII, non-eight-bit | |
1481 | character. | |
1482 | ||
505d8756 | 1483 | ** Changes related to the new font backend |
2b7a2553 | 1484 | |
b19aa6dd GM |
1485 | Which font backends to use can be specified by the X resource "FontBackend". |
1486 | For instance, to use both X core fonts and Xft fonts: | |
2b7a2553 | 1487 | |
b19aa6dd | 1488 | Emacs.FontBackend: x,xft |
2b7a2553 | 1489 | |
b19aa6dd GM |
1490 | If this resource is not set, Emacs tries to use all font backends |
1491 | available on your graphic device. | |
d82c3d44 GM |
1492 | |
1493 | *** New frame parameter `font-backend' specifies a list of | |
1494 | font-backends supported by the frame's graphic device. On X, they are | |
1495 | currently `x' and `xft'. | |
1496 | ||
b350bdf2 CY |
1497 | *** The function `set-fontset-font' now accepts a script name as the |
1498 | second argument, and has an optional 5th argument to control how to | |
1499 | set the font. | |
d82c3d44 | 1500 | |
b350bdf2 | 1501 | *** New functions: |
d82c3d44 | 1502 | |
b350bdf2 | 1503 | **** `fontp' checks if the argument is a font-spec or font-entity. |
d82c3d44 | 1504 | |
b350bdf2 | 1505 | **** `font-spec' creates a new font-spec object. |
d54b8954 | 1506 | |
b350bdf2 | 1507 | **** `font-get' returns a font property value. |
d82c3d44 | 1508 | |
b350bdf2 | 1509 | **** `font-put' sets a font property value. |
d82c3d44 | 1510 | |
b350bdf2 | 1511 | **** `font-face-attributes' returns a plist of face attributes set by a font. |
d82c3d44 | 1512 | |
b350bdf2 | 1513 | **** `list-fonts' returns a list of font-entities matching a font spec. |
d82c3d44 | 1514 | |
b350bdf2 | 1515 | **** `font-font' returns the font-entity best matching the given font spec. |
d82c3d44 | 1516 | |
b350bdf2 | 1517 | **** `list-families' returns a list of family names of available fonts. |
d82c3d44 | 1518 | |
b350bdf2 CY |
1519 | **** `font-xlfd-name' returns an XLFD name of a given font spec, font |
1520 | entity, or font object. | |
1521 | ||
1522 | **** `clear-font-cache' clears all font caches. | |
d82c3d44 | 1523 | |
b350bdf2 | 1524 | ** Changes related to multiple-terminal (multi-tty) support |
24cdde13 | 1525 | |
b12f6e85 SM |
1526 | *** $TERM is now set to `dumb' for subprocesses. If you want to know the |
1527 | $TERM inherited by Emacs you will have to look inside initial-environment. | |
1528 | ||
6168122d SM |
1529 | *** $DISPLAY is now dynamically inherited from the frame's `display'. |
1530 | ||
b350bdf2 | 1531 | *** The `window-system' variable is now frame-local. The new |
24cdde13 | 1532 | `initial-window-system' variable contains the `window-system' value |
bbe3eb99 GM |
1533 | for the first frame. `window-system' is also now a function that |
1534 | takes a frame argument. | |
24cdde13 | 1535 | |
b350bdf2 CY |
1536 | *** The `keyboard-translate-table' variable and the terminal and |
1537 | keyboard coding systems are now terminal-local. | |
1538 | ||
24cdde13 GM |
1539 | *** You can specify a terminal device (`tty' parameter) and a terminal |
1540 | type (`tty-type' parameter) to `make-terminal-frame'. | |
1541 | ||
24cdde13 GM |
1542 | *** The function `make-frame-on-display' now works during a tty |
1543 | session, and `make-frame-on-tty' works during a graphical session. | |
1544 | ||
419f8f49 SM |
1545 | *** A new data type for terminals with functions: `get-device-terminal', |
1546 | `terminal-parameters', `terminal-parameter', `set-terminal-parameter'. | |
24cdde13 | 1547 | |
b350bdf2 CY |
1548 | *** Function key sequences are now mapped using `local-function-key-map', |
1549 | a new variable. This inherits from the global variable function-key-map, | |
1550 | which is not used directly any more. | |
92cd6a7c | 1551 | |
b350bdf2 | 1552 | *** New hooks: |
da406961 | 1553 | |
291703b5 | 1554 | +++ |
7082ceb2 CY |
1555 | **** before-hack-local-variables-hook is called after setting new |
1556 | variable file-local-variables-alist, and before actually applying the | |
1557 | file-local variables. | |
1558 | ||
b350bdf2 CY |
1559 | **** `suspend-tty-functions' and `resume-tty-functions' are called |
1560 | after a tty frame has been suspended or resumed, respectively. The | |
1561 | functions are called with the terminal id of the frame being | |
1562 | suspended/resumed as a parameter. | |
da406961 | 1563 | |
b350bdf2 CY |
1564 | **** The special hook `delete-terminal-functions' is called before |
1565 | deleting a terminal. | |
82866ad5 | 1566 | |
b350bdf2 | 1567 | *** New functions: |
24cdde13 | 1568 | |
b350bdf2 | 1569 | **** `environment' |
24cdde13 | 1570 | |
b350bdf2 | 1571 | **** `make-frame-on-tty' creates a new frame on another tty device. |
24cdde13 | 1572 | |
b350bdf2 | 1573 | **** `delete-tty' |
9f44d41a | 1574 | |
b350bdf2 | 1575 | **** `suspend-tty' |
ea2e3ef4 | 1576 | |
b350bdf2 | 1577 | **** `resume-tty'. |
8d371994 | 1578 | |
b350bdf2 | 1579 | *** `initial-environment' holds the environment inherited from Emacs's parent. |
8d371994 | 1580 | |
b350bdf2 | 1581 | ** Redisplay changes |
8d371994 | 1582 | |
b350bdf2 CY |
1583 | *** For underlined characters, the distance between the underline and |
1584 | the baseline is controlled by a new variable, `underline-minimum-offset'. | |
0a963185 | 1585 | |
b350bdf2 CY |
1586 | *** You can now pass the value of the `invisible' property to |
1587 | invisible-p to check whether it would cause the text to be invisible. | |
1588 | Convenient when checking invisibility of text with no buffer position | |
1589 | (e.g. in before/after-strings). | |
c69b0314 | 1590 | |
80e6b6df | 1591 | +++ |
b350bdf2 | 1592 | *** `clear-image-cache' can be told to flush only images of a specific file. |
9f44d41a | 1593 | |
0c8b58e9 CY |
1594 | *** `vertical-motion' can now be given a goal column. |
1595 | It now accepts a cons cell (COLS . LINES) in its first argument, which | |
1596 | says to stop, where possible, at a pixel x-position equal to COLS | |
1597 | times the default column width. | |
1598 | ||
9ac64acd CY |
1599 | ** The Lisp interpreter now treats non-breaking space as whitespace. |
1600 | ||
b350bdf2 | 1601 | ** Miscellaneous new functions |
9f44d41a | 1602 | |
53728487 | 1603 | +++ |
b350bdf2 CY |
1604 | *** `format-seconds' converts a number of seconds into a readable |
1605 | string of days, hours, etc. | |
9f44d41a | 1606 | |
80f85d7c | 1607 | +++ |
b350bdf2 | 1608 | *** `apply-partially' performs a "curried" application of a function. |
abf13a8b | 1609 | |
e4372165 | 1610 | +++ |
b350bdf2 CY |
1611 | *** `read-shell-command' does what its name says, with completion. It |
1612 | uses the minibuffer-local-shell-command-map for that. | |
b2b387f9 | 1613 | |
acc8b598 | 1614 | +++ |
b350bdf2 CY |
1615 | *** `buffer-swap-text' swaps text between two buffers. This can be |
1616 | useful for modes such as tar-mode, archive-mode, RMAIL. | |
967b2682 | 1617 | |
73b7530a | 1618 | +++ |
b350bdf2 CY |
1619 | *** `read-color' reads a color name using the minibuffer. |
1620 | ||
b3d50cff | 1621 | +++ |
b350bdf2 CY |
1622 | *** `face-all-attributes' returns an alist describing all the basic |
1623 | attributes of a given face. | |
1624 | ||
fd6f900c EZ |
1625 | +++ |
1626 | *** `split-string-and-unquote' splits a string into a list of substrings | |
1627 | on the boundaries of a given delimiter, and unquotes the substrings that | |
1628 | are quoted. Useful for taking apart shell commands. | |
b350bdf2 | 1629 | |
fd6f900c EZ |
1630 | +++ |
1631 | *** `combine-and-quote-strings' produces a single string from a list of strings | |
1632 | sticking a separator string in between each pair, and quoting those | |
1633 | strings that include the separator as their substring. Useful for | |
1634 | consing shell command lines from the individual arguments. | |
b350bdf2 | 1635 | |
bf190568 | 1636 | +++ |
b350bdf2 CY |
1637 | *** `image-refresh' refreshes all images associated with a given image |
1638 | specification. | |
64639e26 | 1639 | |
3645358a | 1640 | +++ |
b350bdf2 | 1641 | *** The two new functions `looking-at-p' and `string-match-p' can do |
45595a4f RS |
1642 | the same matching as `looking-at' and `string-match' without changing |
1643 | the match data. | |
89835619 | 1644 | |
80e6b6df | 1645 | +++ |
81efacf9 CY |
1646 | *** The two new functions `make-serial-process' and |
1647 | `serial-process-configure' provide a Lisp interface to the new serial | |
1648 | port support (see Emacs changes, above). | |
1649 | ||
d6c180c4 JB |
1650 | *** `locate-user-emacs-file' helps packages to select the appropriate |
1651 | place to save user-specific files. It defaults to `user-emacs-directory' | |
1652 | unless the file already exists at $HOME. | |
1653 | ||
b350bdf2 CY |
1654 | ** Miscellaneous new variables |
1655 | ||
80e6b6df | 1656 | +++ |
b350bdf2 CY |
1657 | *** `this-command-keys-shift-translated' is non-nil if the key |
1658 | sequence invoking the current command was found by shift-translation. | |
1659 | ||
1660 | *** `window-point-insertion-type' determines the insertion-type of the | |
1661 | marker used for window-point. | |
1662 | ||
d2c52e26 | 1663 | --- |
b350bdf2 CY |
1664 | *** bookmark provides `bookmark-make-record-function' so special major |
1665 | modes like Info can teach bookmark.el how to save and restore the | |
1666 | relevant data. | |
1667 | ||
b350bdf2 CY |
1668 | *** `fill-forward-paragraph-function' specifies which function the |
1669 | filling code should use to find paragraph boundaries. | |
1670 | ||
1671 | *** `custom-note-var-changed' tells Custom to treat the change in a | |
1672 | certain variable as having been made within Custom. | |
1673 | ||
9bae34bf | 1674 | \f |
0bfd685e | 1675 | * New Packages for Lisp Programming in Emacs 23.1 |
efeb796b | 1676 | |
b350bdf2 CY |
1677 | ** The new package avl-tree.el deals with the AVL tree data structure. |
1678 | ||
87aae241 | 1679 | +++ |
b350bdf2 CY |
1680 | ** The new package check-declare.el verifies the accuracy of |
1681 | declare-function macros (see Lisp Changes, above). | |
d445b3f8 | 1682 | |
20202f5e | 1683 | ** find-cmd.el can build `find' commands using lisp syntax. |
6dfcbe31 | 1684 | |
babc4609 JL |
1685 | ** The package misearch.el has been added. It allows Isearch to search |
1686 | through multiple buffers. A variable `multi-isearch-next-buffer-function' | |
1687 | defines the function to call to get the next buffer to search in the series | |
1688 | of multiple buffers. Top-level commands `multi-isearch-buffers', | |
1689 | `multi-isearch-buffers-regexp', `multi-isearch-files' and | |
1690 | `multi-isearch-files-regexp' accept a single argument that specifies | |
1691 | a list of buffers/files to search for a string/regexp. | |
9097e8af | 1692 | |
b350bdf2 CY |
1693 | ** The new major mode `special-mode' is intended as a parent for |
1694 | major modes such as those that set the "'mode-class 'special" property. | |
d53a60a6 | 1695 | |
05197f40 | 1696 | \f |
a933dad1 | 1697 | ---------------------------------------------------------------------- |
5b87ad55 | 1698 | This file is part of GNU Emacs. |
a933dad1 | 1699 | |
ab73e885 | 1700 | GNU Emacs is free software: you can redistribute it and/or modify |
5b87ad55 | 1701 | it under the terms of the GNU General Public License as published by |
ab73e885 GM |
1702 | the Free Software Foundation, either version 3 of the License, or |
1703 | (at your option) any later version. | |
5b87ad55 GM |
1704 | |
1705 | GNU Emacs is distributed in the hope that it will be useful, | |
1706 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
1707 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
1708 | GNU General Public License for more details. | |
a933dad1 | 1709 | |
5b87ad55 | 1710 | You should have received a copy of the GNU General Public License |
ab73e885 | 1711 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
a933dad1 | 1712 | |
05197f40 | 1713 | \f |
a933dad1 DL |
1714 | Local variables: |
1715 | mode: outline | |
1716 | paragraph-separate: "[ \f]*$" | |
1717 | end: | |
ab5796a9 | 1718 | |
a533413c | 1719 | arch-tag: e759449d-88b3-4de4-9900-3a6c3dfa23e2 |