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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 CY |
59 | ** New NeXTSTEP-based port |
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 |
ba5ff07b | 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. | |
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. | |
d82c3d44 | 132 | |
09e18d03 CY |
133 | *** The new command close-display-connection closes a connection to a |
134 | remote display. | |
d82c3d44 | 135 | |
09e18d03 CY |
136 | *** Emacs now supports the XEmbed specification. |
137 | You can embed Emacs in another application on X11. The new command line | |
138 | option --parent-id is used to pass the parent window id to Emacs. See | |
7b476dbe JD |
139 | http://standards.freedesktop.org/xembed-spec/xembed-spec-latest.html |
140 | for details about XEmbed. | |
141 | ||
09e18d03 CY |
142 | *** Emacs can now set the frame opacity. |
143 | The opacity of a frame can be controlled by setting the `alpha' frame | |
144 | parameter. This only takes effect on a compositing window manager for | |
0f784aa6 JR |
145 | the X Window System, such as Compiz, Beryl and Compiz Fusion, or on |
146 | Windows 2000 and later versions of Windows. | |
55f9bad5 GM |
147 | |
148 | The alpha parameter should be an integer between 0 (transparent) and | |
09e18d03 CY |
149 | 100 (opaque), or a float number between 0.0 and 1.0. It can also be a |
150 | cons cell (ACTIVE . INACTIVE), where ACTIVE is the opacity of an | |
151 | active frame and INACTIVE is the opactity of non-active frames. | |
55f9bad5 | 152 | |
09e18d03 CY |
153 | The variable `frame-alpha-lower-limit' defines a lower bound for the |
154 | opacity; the default is 20. | |
55f9bad5 | 155 | |
09e18d03 | 156 | ** Internationalization changes |
fec8ef06 | 157 | |
09e18d03 CY |
158 | *** The Emacs character set is now a superset of Unicode. |
159 | (It has about four times the code space, which should be plenty). | |
0a963185 | 160 | |
09e18d03 CY |
161 | The internal encoding used for buffers and strings is now |
162 | Unicode-based and called `utf-8-emacs'. This encoding is backwards | |
163 | compatible with Unicode's UTF-8 encoding. The internal encoding | |
164 | previously used by Emacs, `emacs-mule', is still available. | |
6dadd99f | 165 | |
09e18d03 CY |
166 | During byte-compilation, Emacs 23 uses `utf-8-emacs' to write files. |
167 | As a result, byte-compiled files containing non-ASCII characters can't | |
168 | be read by earlier versions of Emacs. Files compiled by Emacs 20, 21, | |
169 | or 22 are loaded correctly as emacs-mule (whether or not they contain | |
170 | multibyte characters). This takes somewhat more time, so it may be | |
171 | worth recompiling existing .elc files which don't need to be shared | |
172 | with older Emacsen. | |
3ae459e5 | 173 | |
09e18d03 | 174 | *** There are new coding systems/aliases; see M-x list-coding-systems. |
c2e8590b | 175 | |
09e18d03 CY |
176 | *** There is a new charset implementation with many new charsets. |
177 | See M-x list-character-sets. New charsets can be defined conveniently | |
178 | as tables of unicodes. | |
1abe3a1e | 179 | |
09e18d03 CY |
180 | **** The dimension of a charset is now 1, 2, 3, or 4, and the size of |
181 | each dimension is no longer limited to 94 or 96. | |
eb28688c | 182 | |
09e18d03 CY |
183 | **** A dynamic charset priority list is used to infer the charset of |
184 | characters for display. | |
6c5d503f | 185 | |
09e18d03 CY |
186 | *** There are new language environments for Chinese-GBK, |
187 | Chinese-GB18030, Khmer, Bengali, Punjabi, Gujarati, Oriya, Telugu, | |
188 | Sinhala, and TaiViet. | |
c9447ae1 | 189 | |
09e18d03 CY |
190 | *** The minor modes unify-8859-on-encoding-mode and |
191 | unify-8859-on-decoding-mode are obsolete. | |
d466e9fc | 192 | |
e94d0645 JL |
193 | *** `ucs-insert' is bound to `C-x 8 RET' and in addition to hex numbers |
194 | accepts numbers in hash notation (e.g. #o21430 for octal, or #10r8984 for | |
195 | decimal). It also accepts Unicode character names with completion. | |
196 | ||
6d496c76 TZ |
197 | *** The `cyrillic-translit' input method supports many new characters. |
198 | Common typographical characters available from Unicode were added to | |
199 | `cyrillic-translit': punctuation marks, accented characters, fractions, | |
200 | and others. | |
201 | ||
09e18d03 | 202 | ** Emacs now supports serial port access on GNU/Linux, Unix, and |
81efacf9 CY |
203 | Windows. The new command `serial-term' starts an interactive terminal |
204 | on a serial port. The serial port can be configured at runtime with | |
205 | the mode-line mouse menu. | |
6c5d503f | 206 | |
09e18d03 | 207 | ** Menu Bar changes |
81efacf9 | 208 | --- |
09e18d03 CY |
209 | *** In the Options menu, the "Set Default Font" item applies the |
210 | selected font to the `default' face on all frames, not just the | |
211 | current frame. Furthermore, if Emacs is compiled with both GTK and | |
212 | Fontconfig support, the "Set Default Font" item uses the GTK font | |
213 | selection dialog instead of an Emacs pop-up menu. | |
81efacf9 | 214 | --- |
09e18d03 CY |
215 | *** The font setting chosen by "Set Default Font" is saved if the |
216 | "Save Options" item is used. | |
1b21ee06 | 217 | |
b350bdf2 CY |
218 | *** The Tools menu contains a new Encryption/Decryption submenu. |
219 | This contains commands provided by EasyPG, the newly-included | |
220 | interface to GnuPG (see New Modes and Packages). | |
81efacf9 CY |
221 | --- |
222 | *** In the Options menu, the "Truncate Long Lines in the Buffer" entry | |
223 | has been replaced with a submenu offering three different ways to | |
224 | handle long lines: truncation, continuation at the window edge, and | |
697f6b43 | 225 | the new word wrapping behavior (see Editing Changes, below). |
5c4a15b3 | 226 | |
c1337511 DN |
227 | *** Improvements to menus for major and minor modes |
228 | More major and minor modes now have a mode specific menu, and existing | |
229 | mode menus have been improved to include more functionality. | |
230 | ||
09e18d03 | 231 | ** Mode-line changes |
a6b85944 | 232 | +++ |
09e18d03 CY |
233 | *** The mode-line displays a `@', instead of `-', if the |
234 | default-directory for the current buffer is on a remote machine. | |
c4c9b6f9 | 235 | |
09e18d03 CY |
236 | *** The mode-line displays a mode menu when mouse-1 is clicked on a |
237 | minor mode, in the same way as it already did for major modes. | |
b3cf10d7 | 238 | |
09e18d03 CY |
239 | *** The `mode-line-emphasis' face is used to highlight certain |
240 | mode-line information (e.g. waiting for a VC command to finish). | |
d82c3d44 | 241 | |
c1337511 DN |
242 | *** The mode-line tooltips have been improved to provide more details. |
243 | ||
244 | *** The VC, line/colum number and minor mode indicators on the mode | |
245 | line are now interactive: mouse-1 can be used on them to pop up a menu. | |
246 | ||
b798e26a GM |
247 | ** File deletion can make use of the Recycle Bin or system Trash folder. |
248 | Set `delete-by-moving-to-trash' non-nil to use this. Deleted files | |
249 | and directories will then be sent to the Recyle Bin on Windows, and | |
250 | to `trash-directory' on other systems. | |
251 | ||
09e18d03 CY |
252 | ** Directory-local variables can now be defined. |
253 | By default, Emacs looks in .dir-settings.el for directory-local | |
254 | variables. For more information, see `set-directory-project' and | |
255 | `define-project-bindings'. | |
307f3501 | 256 | |
b798e26a GM |
257 | ** Emacs can now use `auth-source' for authentication. |
258 | `smtpmail' and `url' (Tramp and Gnus also) use `auth-source' to obtain | |
259 | login names and passwords. The match, if found, is reported | |
260 | in *Messages* with the password blanked out. | |
261 | ||
262 | ** `where-is-preferred-modifier' can specify your favorite modifier. | |
263 | ||
6dadd99f | 264 | \f |
0bfd685e | 265 | * Startup Changes in Emacs 23.1 |
21f7b9d8 | 266 | |
a6b85944 | 267 | +++ |
3063e326 JL |
268 | ** The option `inhibit-startup-screen' (with aliases to old names |
269 | `inhibit-splash-screen' and `inhibit-startup-message') doesn't inhibit | |
270 | display of the initial message in the *scratch* buffer. If you don't | |
271 | want to display the initial message in the *scratch* buffer at startup, | |
272 | you can set the option `initial-scratch-message' to nil. | |
273 | ||
56e1896b JL |
274 | ** New user option `initial-buffer-choice' specifies what to display |
275 | after starting Emacs: startup screen, *scratch* buffer, visiting a | |
276 | file or directory. | |
277 | ||
aa5310e4 DK |
278 | ** New alias `argv' for `command-line-args-left' |
279 | This is a convenience alias, so that one can write `(pop argv)' | |
280 | inside of --eval command line arguments in order to access | |
281 | following arguments. | |
f8fd7ed3 GM |
282 | |
283 | ** The abbrev file is no longer read at startup in batch mode. | |
c44da964 | 284 | \f |
0bfd685e | 285 | * Incompatible Editing Changes in Emacs 23.1 |
b58cb59f | 286 | |
d1949cd5 JL |
287 | ** In Dired, `dired-flag-garbage-files' is rebound from `&' to `%&' |
288 | on the regexp command prefix map. | |
289 | ||
117907d4 JL |
290 | +++ |
291 | ** In Dired-x, all command guesses for ! are now added to the default | |
292 | list accessible by M-n instead of pushing all guesses temporarily into | |
293 | the history list. | |
294 | ||
e94d0645 JL |
295 | ** In Isearch mode, a special case of typing `C-w' at the beginning of |
296 | the minibuffer that toggles word search (i.e. using key sequences | |
297 | `C-s RET C-w' or `C-s M-e C-w') is obsolete. You can use the global key | |
298 | `M-s w' to start word search, or type `M-s w' in Isearch mode to | |
299 | toggle word search. | |
300 | ||
4e14951f JL |
301 | ** In Text mode, `center-line' and `center-paragraph' are rebound |
302 | from `M-s' and `M-S' to global keys `M-o M-s' and `M-o M-S' on the | |
303 | global prefix map `M-o' intended for such formatting commands. | |
304 | ||
81efacf9 | 305 | --- |
e405fa5f | 306 | ** The following input methods were removed in Emacs 22.2, but this was |
9a930d75 | 307 | not advertised: danish-alt-postfix, esperanto-alt-postfix, |
e405fa5f RS |
308 | finnish-alt-postfix, german-alt-postfix, icelandic-alt-postfix, |
309 | norwegian-alt-postfix, scandinavian-alt-postfix, spanish-alt-postfix, | |
310 | and swedish-alt-postfix. Use the versions without "alt-", which are | |
311 | identical. | |
0b0914ae | 312 | |
406c0f12 | 313 | \f |
0bfd685e | 314 | * Editing Changes in Emacs 23.1 |
406c0f12 | 315 | |
697f6b43 | 316 | +++ |
0c8b58e9 CY |
317 | ** The C-n and C-p line-motion commands now move by screen lines, |
318 | taking continued lines and variable-width characters into account. | |
319 | Setting `line-move-visual' to nil reverts this to the previous | |
320 | behavior (motion by logical lines based on buffer contents alone). | |
321 | ||
09e18d03 CY |
322 | ** C-x C-c now invokes `save-buffers-kill-terminal', and C-z now |
323 | invokes `suspend-frame'. This change is for compatibility with the | |
324 | new multi-tty support (see `Improved X Window System support' above). | |
3ae459e5 | 325 | |
09e18d03 | 326 | ** Mark changes |
59b5d020 | 327 | +++ |
3ae459e5 | 328 | *** Transient Mark mode is now on by default. |
3ae459e5 CY |
329 | +++ |
330 | *** mark-even-if-inactive now defaults to t | |
3ae459e5 | 331 | +++ |
b350bdf2 CY |
332 | *** When Transient Mark mode is on, C-SPC C-SPC pushes a mark without |
333 | activating it. | |
1ac03a31 | 334 | +++ |
3ae459e5 CY |
335 | *** When Transient Mark mode is on, M-q now fills the region if the |
336 | region is active. Otherwise, it fills the current paragraph. | |
ecde850a | 337 | +++ |
3ae459e5 CY |
338 | *** When Transient Mark mode is on, M-$ now checks spelling of the |
339 | region if the region is active. Otherwise, it checks spelling of the | |
dc868f13 | 340 | word at point. |
697f6b43 | 341 | |
3ae459e5 CY |
342 | *** When Transient Mark mode is on, TAB now indents the region if the |
343 | region is active. | |
697f6b43 | 344 | |
3ae459e5 CY |
345 | *** `use-empty-active-region' controls whether an empty active region |
346 | in Transient Mark mode should make commands operate on that empty | |
347 | region. | |
348 | ||
349 | ** Temporarily active regions | |
4502d15f | 350 | +++ |
3ae459e5 CY |
351 | *** The new variable shift-select-mode, non-nil by default, controls |
352 | shift-selection. When Shift Select mode is on, shift-translated | |
353 | motion keys (e.g. S-left and S-down) activate and extend a temporary | |
354 | region, similar to mouse-selection. | |
4502d15f | 355 | +++ |
3ae459e5 CY |
356 | *** Temporarily active regions, created using shift-selection or |
357 | mouse-selection, are not necessarily deactivated in the next command. | |
358 | They are only deactivated after point motion commands that are not | |
359 | shift-translated, or after commands that would ordinarily deactivate | |
360 | the mark in Transient Mark mode (e.g., any command that modifies the | |
361 | buffer). | |
362 | ||
3307af6c | 363 | ** Minibuffer and completion changes |
0ca1ad68 | 364 | +++ |
d47a29c1 JL |
365 | *** When M-n in the minibuffer reaches the end of the list of defaults, |
366 | it adds the completion list to the end, so next M-n continues putting | |
367 | completion items to the minibuffer. The same principle applies to | |
368 | incremental search commands as well: C-s or C-M-s starts searching | |
369 | the default values and after the end of defaults they continue | |
370 | searching minibuffer completion items. | |
f3ed2b83 | 371 | |
09e18d03 CY |
372 | *** Minibuffer input of shell commands now comes with completion. |
373 | ||
374 | *** In the `C-x d' (Dired) prompt, typing M-n gives the visited file | |
375 | name of the current buffer. | |
dc2f6c05 | 376 | |
09e18d03 CY |
377 | *** In the M-! (shell-command) prompt, M-n provides some default commands. |
378 | These are guessed using the file extension of the current file, based | |
379 | on the file-handlers specified in the operating system's `mailcap' | |
380 | file. The ! command in Dired (dired-do-shell-command) works | |
381 | similarly, using the file displayed on the current line. | |
117907d4 JL |
382 | |
383 | *** A list of regexp default values is available via M-n for `occur', | |
384 | `keep-lines', `flush-lines' and `how-many'. This list includes the active | |
4f75e082 JL |
385 | region in transient-mark-mode, the word under the cursor, the last Isearch |
386 | regexp, the last Isearch string and the last replacement regexp. | |
c4e606b6 | 387 | --- |
3353f870 CY |
388 | *** When enable-recursive-minibuffers is non-nil, operations which use |
389 | switch-to-buffer (such as C-x b and C-x C-f) do not fail any more when | |
390 | used in a minibuffer or a dedicated window. Instead, they fallback on | |
391 | using pop-to-buffer, which will use some other window. This change | |
392 | has no effect when enable-recursive-minibuffers is nil (the default). | |
393 | ||
4f75e082 JL |
394 | *** Isearch started in the minibuffer searches in the minibuffer history. |
395 | Reverse Isearch commands (C-r, C-M-r) search in previous minibuffer | |
396 | history elements, and forward Isearch commands (C-s, C-M-s) search in | |
297b8ccd JL |
397 | next history elements. When the reverse search reaches the first history |
398 | element, it wraps to the last history element, and the forward search | |
399 | wraps to the first history element. When the search is terminated, the | |
400 | history element containing the search string becomes the current. | |
401 | ||
6c897494 CY |
402 | *** The variable read-file-name-completion-ignore-case overrides |
403 | completion-ignore-case for file name completion. | |
404 | ||
405 | *** The variable read-buffer-completion-ignore-case overrides | |
406 | completion-ignore-case for buffer name completion. | |
3307af6c CY |
407 | --- |
408 | *** `completion-styles' can be customized to choose your favorite | |
409 | completion style. | |
410 | --- | |
411 | *** The default completion styles include a form of partial-completion. | |
412 | --- | |
413 | *** The new command `minibuffer-force-complete' chooses one of the | |
414 | possible completions, rather than stopping at the common prefix. | |
415 | +++ | |
416 | *** If `completion-auto-help' is `lazy', Emacs shows the completions | |
417 | buffer only on the second attempt to complete. This was already | |
418 | supported in `partial-completion-mode'. | |
6c897494 | 419 | |
505d8756 GM |
420 | ** Face changes |
421 | ||
b350bdf2 CY |
422 | *** S-down-mouse-1 now pops up a menu for changing the font and text |
423 | size of the default face in the current buffer. The face is changed | |
424 | via face remapping (see below). | |
d2d160bd | 425 | |
f20186fd GM |
426 | *** FIXME face-remap |
427 | ||
09e18d03 | 428 | ** Primary selection changes |
0091c67e | 429 | |
09e18d03 CY |
430 | *** If `select-active-regions' is t, setting the mark automatically |
431 | makes the new region into the primary selection (for interaction with | |
432 | other window applications). If you enable this, you might want to | |
433 | bind `mouse-yank-primary' to Mouse-2. | |
c160dc76 | 434 | |
b350bdf2 CY |
435 | *** You can disable kill ring commands from accessing the primary |
436 | selection by setting `x-select-enable-primary' to nil. | |
2e282009 | 437 | |
697f6b43 CY |
438 | ** Continuation lines can now be wrapped at word boundaries |
439 | (word-wrapping). This is controlled by the new per-buffer variable | |
440 | `word-wrap'. Word wrapping does not take place if continuation lines | |
441 | are not shown, e.g. if truncate-lines is non-nil. The most convenient | |
442 | way to enable word-wrapping is using the new minor mode Visual Line | |
443 | mode; in addition to setting `word-wrap' to t, this rebinds some | |
444 | editing commands to work on screen lines rather than text lines. See | |
445 | New Modes and Packages, below. | |
85b1de32 | 446 | |
463c6766 CY |
447 | ** Window management changes |
448 | ||
449 | *** truncate-partial-width-windows now accepts integer values, which | |
450 | specify a minimum window width for partial-width windows, below which | |
7d09b7a6 | 451 | lines are truncated. The default has been changed to 50. |
463c6766 CY |
452 | |
453 | *** The new command balance-windows-area balances windows both | |
454 | vertically and horizontally. | |
455 | ||
09e18d03 | 456 | ** Miscellaneous changes: |
3f7194ed | 457 | |
97431b7f | 458 | +++ |
09e18d03 CY |
459 | *** C-l is bound to the new command recenter-top-bottom, rather than recenter. |
460 | This moves the current line to window center, top and bottom on | |
461 | successive invokations. | |
15f3eb73 | 462 | |
09e18d03 | 463 | *** scroll-preserve-screen-position also preserves the column position. |
c154c0be | 464 | |
09e18d03 CY |
465 | *** If `yank-pop-change-selection' is t, rotating the kill ring also |
466 | updates the selection or clipboard to the current yank, just as M-w | |
467 | would do so with the text it copies to the kill ring. | |
468 | ||
469 | +++ | |
470 | *** C-M-% now shows replacement as it would look in the buffer, with | |
471 | `\N' and `\&' substituted according to the match. Old behavior can be | |
472 | restored by customizing `query-replace-show-replacement'. | |
473 | ||
474 | *** The command shell prompts for the default directory, when it is | |
475 | called with a prefix and the default directory is a remote file name. | |
476 | This is because some file name handlers (like ange-ftp) are not able to | |
477 | run processes remotely. | |
478 | ||
479 | *** The new command kill-matching-buffers kills buffers whose name | |
480 | matches a regexp. | |
481 | ||
b350bdf2 CY |
482 | *** The new commands `pp-macroexpand-expression' and |
483 | `pp-macroexpand-last-sexp' pretty-print macro expansions. | |
8f377a4b | 484 | |
09e18d03 CY |
485 | \f |
486 | * New Modes and Packages in Emacs 23.1 | |
e11910e2 | 487 | |
09e18d03 CY |
488 | ** FIXME add details of new packages imported from lisp/gnus. |
489 | [Maybe some information from doc/misc/gnus-coding.texi can be reused] | |
c06c430f | 490 | |
e11910e2 GM |
491 | ** Auto Composition Mode is a minor mode that composes characters |
492 | automatically when they are displayed. It is globally on by default. | |
493 | It uses `auto-composition-function' (default `auto-compose-chars'). | |
494 | ||
09e18d03 | 495 | ** Bubbles, a new game, is similar to SameGame. |
f6b26818 | 496 | |
7ef39c6e GM |
497 | ** bug-reference.el provides clickable links to bug reports. |
498 | ||
09e18d03 CY |
499 | ** dbus.el provides D-Bus language bindings. |
500 | D-Bus is an inter-process communication mechanism for applications | |
b350bdf2 | 501 | residing on the same host. See the manual for details. |
09e18d03 | 502 | |
b350bdf2 CY |
503 | ** Doc View Mode allows viewing of PDF, PostScript and DVI documents. |
504 | One can also search for a regular expression in the document. For | |
505 | details, see the commentary in doc-view.el. | |
09e18d03 | 506 | |
b350bdf2 CY |
507 | ** EasyPG provides an interface to the GNU Privacy Guard (GnuPG). |
508 | It includes a GnuPG keyring browser, cryptographic operations on | |
509 | regions and files, and automatic encryption of *.gpg files. For | |
510 | details, see the EasyPG Assistant User's Manual. | |
09e18d03 CY |
511 | |
512 | ** json.el is a library for parsing and generating JSON | |
513 | (JavaScript Object Notation), a lightweight data-interchange format. | |
514 | ||
515 | ** linum.el is a new minor mode to display line numbers for the | |
516 | current buffer. | |
517 | ||
4b4eb083 CY |
518 | ** mairix.el is an interface to mairix, a free tool for indexing and |
519 | searching locally stored mail. It allows you to query mairix and | |
520 | display the search results with Rmail, Gnus and VM. Note that there | |
521 | is an existing Gnus back end, nnmairix.el, which should be used with | |
522 | Maildir/MH setups. | |
523 | ||
e94d0645 | 524 | ** minibuffer-depth-indicate-mode shows the minibuffer depth in the prompt. |
09e18d03 CY |
525 | |
526 | ** nXML Mode | |
527 | This is a new mode for editing XML documents. It allows a schema to | |
528 | be associated with the XML document being edited, using Relax NG as | |
529 | the schema language. The schema is used to provide two key features: | |
530 | ||
531 | *** Continuous validation. nXML validates as you type, highlighting | |
532 | any invalid parts of your document. | |
533 | ||
534 | *** Completion. nXML can assist you in entering an element name, | |
535 | attribute name or data value by using information about what is | |
536 | allowed by the schema in that context. | |
537 | ||
538 | ** proced.el provides a Dired-like interface for operating on processes. | |
539 | Proced makes an Emacs buffer containing a listing of the current | |
540 | processes (using ps(1)). You can use the normal Emacs commands to | |
541 | move around in this buffer, and special Proced commands to operate on | |
542 | the processes listed. | |
543 | ||
544 | ** Remember Mode is a mode for jotting down things to remember. | |
545 | Notes can be saved to a Diary file. For details, see the Remember | |
546 | Manual. | |
547 | ||
548 | ** RST mode is a major mode for editing ReSTructured-Text files. | |
c2d0b538 | 549 | |
7394499e | 550 | +++ |
12f165e9 CY |
551 | ** Visual Line mode provides support for editing by visual lines. |
552 | It turns on word-wrapping in the current buffer, and rebinds C-a, C-e, | |
553 | and C-k to commands that operate by visual lines instead of logical | |
554 | lines. This is a more reliable replacement for longlines-mode. | |
697f6b43 CY |
555 | This can also be turned on using the menu bar, via |
556 | Options -> Line Wrapping in this Buffer -> Word Wrap | |
12f165e9 | 557 | |
0c68a24b MA |
558 | ** xesam.el is an implementation of Xesam, an interface to (desktop) |
559 | search engines like Beagle, Strigi, and Tracker. The Xesam API | |
560 | requires D-Bus for communication. | |
561 | ||
09e18d03 CY |
562 | ** zeroconf.el offers service discovery and service publishing |
563 | interfaces according to the zeroconf specification. It communicates | |
564 | with Avahi, a zeroconf implementation, via D-Bus messages on systems | |
565 | which have installed this software. | |
566 | ||
d332a7a4 GM |
567 | ** There is a new `whitespace' package. |
568 | (The pre-existing one has been renamed to `old-whitespace'.) | |
569 | Now, besides reporting bogus blanks, the whitespace package has a | |
570 | minor mode and a global minor mode to visualize blanks (TAB, (HARD) | |
571 | SPACE and NEWLINE). The visualization is made via faces and/or display | |
572 | table. It can also indicate lines that extend beyond a given column, | |
573 | trailing blanks, and empty lines at the start or end of a buffer. | |
574 | See `whitespace-style' for more details. The `whitespace-action' option | |
575 | specifies what to do when a buffer is visited, killed, or written. | |
4e5a8be9 | 576 | |
09e18d03 CY |
577 | \f |
578 | * Changes in Specialized Modes and Packages in Emacs 23.1 | |
579 | ||
580 | ** Abbrev has been rewritten in Elisp and extended with more flexibility. | |
e047f448 | 581 | *** New functions: abbrev-get, abbrev-put, abbrev-table-get, abbrev-table-put, |
a3709a8c | 582 | abbrev-table-p, abbrev-insert, abbrev-table-menu. |
e047f448 SM |
583 | *** Special hook `abbrev-expand-functions' obsoletes `pre-abbrev-expand-hook'. |
584 | *** `make-abbrev-table', `define-abbrev', `define-abbrev-table' all take | |
585 | extra arguments for arbitrary properties. | |
586 | *** New variable `abbrev-minor-mode-table-alist'. | |
587 | *** `local-abbrev-table' can hold a list of abbrev-tables. | |
588 | *** Abbrevs have now the following special properties: | |
79415279 | 589 | `:count', `:system', `:enable-function', `:case-fixed'. |
e047f448 SM |
590 | *** Abbrev-tables have now the following special properties: |
591 | `:parents', `:case-fixed', `:enable-function', `:regexp', | |
592 | `abbrev-table-modiff'. | |
593 | ||
09e18d03 CY |
594 | ** Apropos |
595 | *** `apropos-library' describes the elements defined in a given library. | |
596 | *** Set `apropos-compact-layout' is you want a more compact (but wider) layout. | |
0253fffa | 597 | |
09e18d03 | 598 | ** Archive Mode has basic support to browse Rar archives. |
0253fffa | 599 | |
09e18d03 | 600 | ** BibTeX mode |
bafbec39 | 601 | |
09e18d03 | 602 | *** New command `bibtex-initialize' (re)initializes BibTeX buffers. |
bafbec39 | 603 | |
09e18d03 CY |
604 | *** New `bibtex-entry-format' options `whitespace', `braces', and |
605 | `string', disabled by default. | |
12bbb989 | 606 | |
09e18d03 CY |
607 | *** New variable `bibtex-cite-matcher-alist' contains rules to |
608 | identify cited keys in BibTeX entries, used by `bibtex-find-crossref'. | |
9097e8af | 609 | |
09e18d03 | 610 | *** Command `bibtex-url' allows multiple URLs per entry. |
4c24d241 | 611 | |
09e18d03 | 612 | ** Calendar and diary |
320bc739 | 613 | |
09e18d03 CY |
614 | +++ |
615 | *** There is a new date style, `iso', essentially year/month/day. | |
616 | The variable `european-calendar-style' is obsolete - use `calendar-date-style'. | |
617 | Similarly, the commands `american-calendar' and `european-calendar' | |
618 | should be replaced by `calendar-set-date-style'. | |
c3bb6fdb | 619 | |
09e18d03 CY |
620 | +++ |
621 | *** The calendar namespace has been rationalized. | |
622 | All functions and variables now begin with a `calendar-', `diary-', or | |
623 | `holiday-' prefix. The various calendar systems have secondary | |
624 | prefixes, eg `calendar-french-'. The old names you are likely to use | |
625 | directly still exist, for the time being, as aliases, but please start | |
626 | using the new names. | |
627 | ||
a43a8a2e | 628 | +++ |
e889393b GM |
629 | *** The whitespace in the calendar layout can be customized. |
630 | See the variables: | |
631 | calendar-left-margin, calendar-intermonth-spacing, calendar-column-width, | |
632 | calendar-day-header-width, and calendar-day-digit-width. | |
633 | ||
a43a8a2e | 634 | +++ |
e889393b GM |
635 | *** Text (e.g. ISO weeks) can be displayed between the calendar months. |
636 | See the variables calendar-intermonth-header and calendar-intermonth-text. | |
637 | ||
a43a8a2e | 638 | +++ |
09e18d03 CY |
639 | *** The function `holiday-chinese' computes holidays on the Chinese calendar. |
640 | It has been used to add items to the list `holiday-oriental-holidays'. | |
641 | ||
a43a8a2e | 642 | --- |
09e18d03 CY |
643 | *** `diary-remind' accepts a negative number -DAYS as a shorthand for |
644 | the list (1 2 ... DAYS). | |
24cdde13 | 645 | |
a6b85944 CY |
646 | ** Change Log mode |
647 | ||
648 | *** The new command C-c C-f (change-log-find-file) finds the file | |
649 | associated with the current log entry. | |
650 | ||
651 | *** The new command C-c C-c (change-log-goto-source) goes to the | |
652 | source code associated with a log entry. | |
653 | ||
76be286d DN |
654 | ** Compile and grep modes |
655 | ||
656 | *** The mode-line entry for the *compilation* and *grep* buffer is color coded. | |
657 | It has different colors for to show that: (a) the command is still | |
658 | running, (b) successful completion, (c) error. | |
659 | ||
660 | *** compilation-auto-jump-to-first-error tells `compile' to jump to | |
813fb3fe SM |
661 | the first error encountered during compilations. |
662 | ||
0b22a5e1 DN |
663 | *** The `cc' alias for C++ files in `grep-file-aliases' has been |
664 | improved. `hh' can be used to match C++ header files and `cchh' both | |
665 | C++ sources and headers. | |
666 | ||
d332a7a4 GM |
667 | ** Copyright |
668 | ||
669 | *** You can specify your copyright holders' names. | |
670 | Only copyright lines with holders matching `copyright-names-regexp' are | |
671 | considered for update. | |
672 | ||
673 | *** Copyrights can be at the end of the buffer. | |
674 | This is controlled by `copyright-at-end-flag' (used by, e.g., change-log-mode). | |
675 | ||
09e18d03 | 676 | ** Custom |
b68769f2 | 677 | +++ |
09e18d03 | 678 | *** defcustom accepts new keyword arguments, `:safe' and `:risky', which |
b68769f2 GM |
679 | set a variable's `safe-local-variable' and `risky-local-variable' property. |
680 | ||
09e18d03 | 681 | ** Diff mode |
38b627ce | 682 | |
09e18d03 CY |
683 | *** diff-refine-hunk highlights word-level details of changes in a diff hunk. |
684 | It's used automatically as you move through hunks, see | |
7381be9d | 685 | diff-auto-refine-mode. It is bound to `C-c C-b'. |
b58a65fa | 686 | |
09e18d03 CY |
687 | *** diff-add-change-log-entries-other-window iterates through the diff |
688 | buffer and tries to create ChangeLog entries for each change. | |
689 | It is bound to `C-x 4 A'. | |
f3ff0fe9 | 690 | |
d332a7a4 GM |
691 | *** The new function `diff-show-trailing-whitespaces' shows |
692 | trailing whitespace problems in the modified lines of a diff buffer. | |
693 | ||
71554a21 JL |
694 | ** Dired |
695 | ||
696 | *** In Dired, C-x C-q now runs the command wdired-change-to-wdired-mode, | |
697 | and C-x C-q in wdired-mode exits it with asking a question about | |
698 | saving changes. | |
699 | ||
d1949cd5 JL |
700 | *** `&' runs the command `dired-do-async-shell-command' that executes |
701 | the command asynchronously without the need to manually add ampersand | |
702 | to the end of the command. Its output appears in the buffer `*Async Shell | |
703 | Command*'. | |
704 | ||
6d9f0d00 JL |
705 | *** `M-s f C-s' and `M-s f M-C-s' run Isearch that matches only at file names. |
706 | When a new user option `dired-isearch-filenames' is non-nil, then even | |
707 | ordinary Isearch started with `C-s' and `C-M-s' matches only at file names | |
e94d0645 JL |
708 | in the Dired buffer. You can toggle file names matching on or off |
709 | by typing `M-s f' in Isearch mode. | |
6d9f0d00 | 710 | |
cc3236e1 JL |
711 | *** `M-s a C-s' and `M-s a M-C-s' run multi-file Isearch on the marked files. |
712 | They visit the first marked file in the sequence and display the usual Isearch | |
713 | prompt for a string or a regexp where all Isearch commands are available. | |
714 | ||
71554a21 JL |
715 | *** `Q' in Dired provides two new keys for multi-file replacement. |
716 | The upper case key `Y' replaces all remaining matches in all remaining files | |
717 | with no more questions. The upper case key `N' stops doing replacements | |
718 | in the current file and skips to the next file. These multi-file keys | |
719 | are available for all commands that use `tags-query-replace' | |
720 | including `dired-do-query-replace-regexp', `vc-dir-query-replace-regexp', | |
721 | `reftex-query-replace-document'. | |
722 | ||
09e18d03 | 723 | ** Fortran |
77a00355 GM |
724 | +++ |
725 | *** The line length of fixed-form Fortran is not fixed at 72 any more. | |
726 | Customize the variable `fortran-line-length' to change it. | |
117d3cc5 | 727 | |
87aae241 | 728 | +++ |
09e18d03 CY |
729 | *** In Fortran mode, M-; is now bound to the standard comment-dwim, |
730 | rather than fortran-indent-comment. | |
76be286d | 731 | |
09e18d03 CY |
732 | +++ |
733 | *** (The increasingly misnamed) F90 mode supports Fortran 2003 syntax. | |
b592c357 | 734 | |
09e18d03 | 735 | ** Gnus |
6653c6b7 | 736 | |
09e18d03 CY |
737 | *** The Gnus package has been updated |
738 | There are many news features, bug fixes and improvements; see the file | |
739 | GNUS-NEWS or the node "No Gnus" in the Gnus manual for details. | |
db86064f | 740 | |
09e18d03 CY |
741 | *** In Emacs 23, Gnus uses Emacs' new internal coding system `utf-8-emacs' for |
742 | saving articles drafts and ~/.newsrc.eld. These file may not be read | |
743 | correctly in Emacs 22 and below. If you want to Gnus across different Emacs | |
744 | versions, you may set `mm-auto-save-coding-system' to `emacs-mule'. | |
15947a44 | 745 | |
6d496c76 TZ |
746 | *** Password are consistently loaded through `auth-source' |
747 | Gnus can use `auth-source' for POP and IMAP passwords. Also see that | |
748 | `smtpmail' and `url' support `auth-source' for SMTP and HTTP/HTTPS/RSS | |
749 | authentication respectively. | |
750 | ||
09e18d03 CY |
751 | ** Help mode |
752 | *** New macro `with-help-window' should set up help windows better | |
753 | than `with-output-to-temp-buffer' with `print-help-return-message'. | |
754 | *** New option `help-window-select' permits to customize whether help | |
755 | window shall be automatically selected when invoking help. | |
756 | *** New variable `help-window-point-marker' permits to specify new | |
757 | position of point in help window (for example in `view-lossage'). | |
15947a44 | 758 | |
09e18d03 | 759 | ** Isearch |
15947a44 | 760 | |
4f75e082 JL |
761 | *** New command `isearch-forward-word' bound globally to `M-s w' starts |
762 | incremental word search. New command `isearch-toggle-word' bound to the | |
763 | same key `M-s w' in Isearch mode toggles word searching on or off | |
764 | while Isearch is active. | |
765 | ||
766 | *** New command `isearch-highlight-regexp' bound to `M-s h r' in Isearch | |
767 | mode runs `highlight-regexp' (`hi-lock-face-buffer') with the current | |
768 | search string as its regexp argument. The same key `M-s h r' and | |
769 | other keys on the `M-s h' prefix are bound globally to the command | |
770 | `highlight-regexp' and other hi-lock commands. | |
f45acc9d | 771 | |
4f75e082 JL |
772 | *** New command `isearch-occur' bound to `M-s o' in Isearch mode |
773 | runs `occur' with the current search string. The same key `M-s o' | |
774 | is bound globally to the command `occur'. | |
15947a44 | 775 | |
4f75e082 JL |
776 | *** Isearch can now search through multiple ChangeLog files. |
777 | When running Isearch in a ChangeLog file, if the search fails, | |
09e18d03 CY |
778 | then another C-s tries searching the previous ChangeLog, |
779 | if there is one (e.g. go from ChangeLog to ChangeLog.12). | |
babc4609 | 780 | This is enabled if multi-isearch-search is non-nil. |
93a142e1 | 781 | |
babc4609 | 782 | *** Two new commands to start Isearch on a list of marked buffers |
cc3236e1 JL |
783 | for buff-menu.el and ibuffer.el are bound to the keys `M-s a C-s' and |
784 | `M-s a M-C-s'. | |
15947a44 | 785 | |
4f75e082 | 786 | *** The part of an Isearch that failed to match is highlighted in `isearch-fail' |
09e18d03 | 787 | face. |
5d503af9 | 788 | |
4f75e082 JL |
789 | *** `C-h C-h' in Isearch mode displays isearch-specific Help screen, |
790 | `C-h b' displays all Isearch key bindings, `C-h k' displays the full | |
791 | documentation of the given Isearch key sequence, `C-h m' displays | |
792 | documentation of Isearch mode. All the rest Help commands exit Isearch mode | |
09e18d03 | 793 | and execute their global definitions. |
332de56f | 794 | |
09e18d03 CY |
795 | *** When started in the minibuffer, Isearch searches in the minibuffer |
796 | history. See `Minibuffer changes', above. | |
2793c9bb | 797 | |
66863844 BW |
798 | +++ |
799 | ** MH-E | |
1e9b0fb2 | 800 | |
66863844 BW |
801 | *** Upgraded to MH-E version 8.1. See MH-E-NEWS for details. |
802 | ||
09e18d03 CY |
803 | ** Python |
804 | *** The file etc/emacs.py now supports both Python 2 and 3, meaning | |
805 | that either version can be used as inferior Python by python.el. | |
c5578d5f | 806 | |
09e18d03 CY |
807 | *** Python mode now has `pdbtrack' functionality. When using pdb to |
808 | debug a Python program, pdbtrack notices the pdb prompt and displays | |
809 | the source file and line that the program is stopped at, much the same | |
810 | way as gud-mode does for debugging C programs with gdb. | |
2793c9bb | 811 | |
1e9b0fb2 MA |
812 | ** Recentf |
813 | ||
814 | *** The default value of `recentf-keep' prevents from checking of | |
815 | remote files, if there is no established connection to the | |
816 | corresponding remote host. | |
817 | ||
09e18d03 | 818 | ** T-mouse Mode |
2793c9bb | 819 | |
09e18d03 CY |
820 | *** If the gpm mouse server is running and t-mouse-mode is enabled, |
821 | Emacs uses a Unix socket in a GNU/Linux console to talk to server, | |
822 | rather than faking events using the client program mev. This C level | |
823 | approach provides mouse highlighting and help echoing in the | |
824 | minibuffer. | |
2793c9bb | 825 | |
cc213f24 MA |
826 | +++ |
827 | ** Tramp | |
828 | ||
829 | *** New connection methods. | |
830 | The new methods "plinkx", "plink2", "psftp", "sftp" and "fish" have | |
831 | been introduced. There are also new so-called gateway methods | |
832 | "tunnel" and "socks". | |
833 | ||
834 | *** Multihop syntax has been removed. | |
835 | The pseudo-method "multi" has been removed. Instead of, multi hops | |
836 | can be specified by the new variable `tramp-default-proxies-alist'. | |
837 | ||
838 | *** More default settings. | |
839 | Default values can be set via the variables `tramp-default-user', | |
840 | `tramp-default-user-alist' and `tramp-default-host'. | |
841 | ||
842 | *** Connection information is cached. | |
843 | In order to reduce connection setup, information about used | |
844 | connections are kept persistent in a file. The name of this file is | |
845 | defined in the variable `tramp-persistency-file-name'. | |
846 | ||
847 | *** Control of remote processes. | |
848 | Running processes on a remote host can be controlled by settings in | |
849 | `tramp-remote-path' and `tramp-remote-process-environment'. | |
850 | ||
851 | *** Success of remote copy is checked. | |
852 | When the variable `file-precious-flag' is set, the success of a remote | |
853 | file copy is checked via the file's checksum. | |
854 | ||
7cba69f2 MA |
855 | *** Passwords can be read from an authentification file. |
856 | Tramp uses the package `auth-source' to read passwords from a file, if | |
857 | necessary. | |
858 | ||
289aee1c | 859 | ** VC and related modes |
95d8772f | 860 | |
09e18d03 CY |
861 | *** VC now supports applying VC operations to a set of files at a time. |
862 | This enables VC to work much more effectively with changeset-oriented | |
863 | version-control systems such as Subversion, GNU Arch, Mercurial, Git | |
864 | and Bzr. VC will now pass a multiple-file commit to these systems as | |
865 | a single changeset. | |
d15f7b68 | 866 | |
09e18d03 | 867 | *** vc-dir is a new command that displays file names and their VC |
289aee1c DN |
868 | status. It allows to apply various VC operations to a file, a |
869 | directory or a set of files/directories. | |
c3f01f42 | 870 | |
09e18d03 | 871 | *** Clicking on the VC mode-line entry now pops the VC menu. |
4c24d241 | 872 | |
09e18d03 | 873 | *** The VC mode-line entry now has a tooltip that explains the VC file status. |
d15f7b68 | 874 | |
09e18d03 CY |
875 | *** In VC Annotate mode, for VC systems that support changesets, you can |
876 | see the diff for the whole changeset (not only for the current file) | |
e86fa02b | 877 | by typing the D key. |
a9f480e8 | 878 | |
e86fa02b | 879 | *** In VC Annotate mode, you can type v to toggle the annotation visibility. |
2fb6c6be | 880 | |
09e18d03 CY |
881 | *** In VC Annotate mode, you can type f to show the file revision on |
882 | the current line. | |
d5d381e2 | 883 | |
e86fa02b DN |
884 | *** In VC Annotate mode, for VC systems that support changesets, you |
885 | can see the diff for the whole changeset (not only for the current | |
886 | file) by typing the D key or using the "Show changeset diff of | |
887 | revision at line" menu entry. | |
888 | ||
09e18d03 CY |
889 | *** Asynchronous VC commands display [Waiting...] in the mode-line |
890 | of the corresponding buffer as long as the asynchronous process is | |
891 | active. | |
cf944fa4 | 892 | |
09e18d03 CY |
893 | *** Log entries can be modified using the key "e" in log-view. |
894 | For now only CVS, RCS, SCCS and SVN support this functionality. | |
895 | This is done by the `modify-change-comment' backend function. | |
143cecdb | 896 | |
09e18d03 CY |
897 | *** In log-view-mode, for VC systems that support changesets, you can |
898 | see the diff for the whole changeset (not only for the current file) | |
899 | by typing the D key or using the "Changeset Diff" menu entry. | |
cf944fa4 | 900 | |
289aee1c DN |
901 | *** In Log Edit mode, C-c C-d now shows the diff for the files involved. |
902 | ||
903 | *** vc-git supports the "git grep" command. | |
904 | ||
09e18d03 CY |
905 | *** VC Support for Meta-CVS has been removed for lack of maintainer able |
906 | to update it to the new VC. | |
cf944fa4 | 907 | |
d15f7b68 GM |
908 | ** Miscellaneous |
909 | ||
910 | *** comint-mode uses `start-file-process' now (see Lisp Changes). | |
cc213f24 MA |
911 | If `default-directory' is a remote file name, subprocesses are started |
912 | on the corresponding remote system. | |
913 | ||
09e18d03 CY |
914 | *** Eldoc highlights the function argument under point |
915 | with the face `eldoc-highlight-function-argument'. | |
4596901f | 916 | |
09e18d03 | 917 | *** In Etags, the --members option is now the default. |
fffa137c | 918 | Use --no-members if you want the old default behavior of not tagging |
09e18d03 | 919 | struct members in C, members variables in C++ and variables in PHP. |
1752e205 | 920 | |
09e18d03 CY |
921 | *** The `gdb' command only works with the graphical interface now. |
922 | Use `gud-gdb' if you want the (old) text command mode. | |
923 | ||
924 | *** goto-address.el provides two new minor modes, goto-address-mode and | |
925 | goto-address-prog-mode, which buttonize URLS and email addresses. | |
926 | ||
927 | *** The new command `eshell/info' runs info in an eshell buffer. | |
3cf86f00 | 928 | |
4d1e89e3 GM |
929 | *** The new variable `ffap-rfc-directories' specifies a list of local |
930 | directories in which `ffap-rfc' will first search for RFCs. | |
931 | ||
09e18d03 CY |
932 | *** hide-ifdef-mode allows shadowing ifdef-blocks instead of hiding them. |
933 | See option `hide-ifdef-shadow' and function `hide-ifdef-toggle-shadowing'. | |
934 | ||
935 | *** `icomplete-prospects-height' now supercedes `icomplete-prospects-length'. | |
936 | ||
937 | *** Info displays breadcrumbs in the header of the page. | |
938 | See Info-breadcrumbs-depth to control it. | |
939 | ||
d2c98acc | 940 | *** net-utils has an `iwconfig' command, similar to the existing `ifconfig'. |
b7bfcc8a | 941 | It is used to configure wireless interfaces. |
d2c98acc | 942 | |
09e18d03 CY |
943 | *** The pcmpl-unix package supports hostname completion for ssh and scp. |
944 | ||
945 | *** sgml-electric-tag-pair-mode lets you simultaneously edit matched tag pairs. | |
946 | ||
947 | *** smerge-refine highlights word-level details of changes in conflict. | |
7381be9d TTN |
948 | It's used automatically as you move through conflicts, see |
949 | smerge-auto-refine-mode. | |
09e18d03 CY |
950 | |
951 | *** talk.el has been extended for multiple tty support. | |
952 | ||
953 | *** A new command `display-time-world' has been added to the Time | |
954 | package. It creates a buffer with an updating time display using | |
955 | several time zones. | |
956 | ||
957 | *** The appearance of superscript and subscript in TeX is more customizable. | |
958 | See the documentation of the variables: tex-fontify-script, | |
959 | tex-font-script-display, tex-suscript-height-ratio, and | |
960 | tex-suscript-height-minimum. | |
961 | ||
962 | *** view-remove-frame-by-deleting is now by default t | |
963 | since users found iconification of view-mode frames distracting. | |
964 | ||
965 | *** WoMan tries to add locale-specific manual page directories to the | |
966 | search path. This can be disabled by setting `woman-locale' to nil. | |
967 | ||
0bfd685e GM |
968 | \f |
969 | * Changes in Emacs 23.1 on non-free operating systems | |
8ab314f9 | 970 | |
203553fd JPW |
971 | ** Case is now considered significant in completion on MS-Windows. |
972 | The default value of `completion-ignore-case' is now nil on | |
973 | MS-Windows, the same as it is for other operating systems. The | |
974 | variable doesn't apply to reading a file name -- in that case Emacs | |
975 | heeds `read-file-name-completion-ignore-case' instead. | |
976 | ||
672f99b6 JR |
977 | --- |
978 | ** IPv6 is supported on MS-Windows. | |
979 | Emacs now supports IPv6 on Windows XP and later, and earlier versions | |
2660a9da | 980 | of Windows with third party IPv6 stacks installed. In Emacs 22, IPv6 was |
672f99b6 JR |
981 | supported on other platforms, but not on Windows due to using the winsock |
982 | 1.1 header file, even though Emacs was linking to the winsock 2 library. | |
983 | ||
0d22595d | 984 | --- |
6e344060 JR |
985 | ** Busy cursor (hourglass) now displays on MS-Windows. |
986 | When Emacs is busy, an hourglass mouse cursor is displayed on Windows. | |
2660a9da JR |
987 | In Emacs 22 only X supported the busy cursor. |
988 | ||
989 | --- | |
990 | ** Battery status is available on MS-Windows | |
991 | Emacs can now display the battery status in the mode-line when enabled with | |
992 | display-battery-mode or from the Options menu. More verbose battery | |
993 | information is also available with the command `battery'. In Emacs 22 | |
994 | battery status was supported only on GNU/Linux and Mac. | |
6e344060 | 995 | |
3280c5c5 JR |
996 | ** More keys available on MS-Windows. |
997 | Keys normally associated with IMEs, and some exotic keys not normally found | |
998 | on standard keyboards have been given names so they can be bound to functions | |
999 | inside Emacs. If there are keys on your keyboard that have not been exposed | |
1000 | to Emacs in the past, try C-h k to see if they are available now. | |
1001 | ||
1002 | Emacs can now bind functions to the extra buttons for media player and | |
1003 | browser control present on some keyboards. These buttons are disabled | |
1004 | by default, since enabling them prevents their system-wide use when | |
1005 | Emacs has focus. To enable them, set the variable | |
0caa490b | 1006 | w32-pass-multimedia-buttons to nil. See the doc string of that variable |
3280c5c5 | 1007 | for the list of extra keys that are available. |
2660a9da | 1008 | |
4a263588 JR |
1009 | ** BDF fonts no longer supported on MS-Windows. |
1010 | The font backend was completely rewritten for this release. The focus | |
1011 | on Windows has been getting acceptable performance and full unicode | |
1012 | support, including complex script shaping for native Windows fonts. A | |
1013 | rewrite of the BDF font support has not happened due to lack of time | |
1014 | and developers. If demand still exists for such a backend even with | |
1015 | the improved language support for native Windows fonts, future | |
1016 | development in this direction will most likely be based on the | |
1017 | freetype library, giving access to a wider range of font formats. | |
1018 | ||
0bfd685e GM |
1019 | \f |
1020 | * Incompatible Lisp Changes in Emacs 23.1 | |
8ec65cd7 | 1021 | |
fd9440c5 | 1022 | ** Variables cannot be both buffer-local and frame-local any more. |
a9b08254 | 1023 | |
fc944cd4 | 1024 | ** `functionp' returns nil for special forms. |
65f81a0b | 1025 | I.e., it only returns t for objects that can be passed to `funcall'. |
fc944cd4 | 1026 | |
d82c3d44 GM |
1027 | ** The behavior of map-char-table has changed. It may call the |
1028 | specified function with a cons (FROM . TO) as a key if characters in | |
1029 | that range have the same value. | |
1030 | ||
b350bdf2 CY |
1031 | ** Process changes |
1032 | +++ | |
1033 | *** The function `dired-call-process' has been removed. | |
03605a28 | 1034 | +++ |
b350bdf2 CY |
1035 | *** The multibyteness of process filters is now determined by the |
1036 | coding-system used for decoding. The functions | |
1037 | `process-filter-multibyte-p' and `set-process-filter-multibyte' are | |
1038 | obsolete. | |
03605a28 | 1039 | |
87aae241 | 1040 | --- |
777ea444 | 1041 | ** The variable `byte-compile-warnings' can now be a list starting with `not', |
0caa490b | 1042 | meaning to disable the specified warnings. The meaning of this list |
777ea444 | 1043 | may therefore be the reverse of what you expect (of course, this is |
0caa490b | 1044 | only an issue if you make use of the new `not' syntax). Rather than |
777ea444 GM |
1045 | checking/manipulating elements directly, use the new functions |
1046 | `byte-compile-warning-enabled-p', `byte-compile-disable-warning', and | |
1047 | `byte-compile-enable-warning.' | |
1048 | ||
69df9d6d GM |
1049 | ** `mode-name' is no longer guaranteed to be a string. |
1050 | Use `(format-mode-line mode-name)' to ensure a string value. | |
1051 | ||
b350bdf2 CY |
1052 | ** Internationalization changes |
1053 | ||
1054 | *** The value of the function `charset-id' is now always 0. | |
1055 | ||
1056 | *** The functions `register-char-codings' and `coding-system-spec' | |
1057 | have been removed. | |
1058 | ||
1059 | *** The cpXXX coding systems are now supported automatically. | |
1060 | The functions cp-...-codepage, which you had to use in Emacs 22 to | |
1061 | enable support for these coding systems, have been deleted. | |
1062 | ||
1063 | *** The following features have been removed. They were used for | |
85a1f98d GM |
1064 | displaying various scripts with specific fonts, and are no longer |
1065 | needed now that OpenType font support is available: | |
1066 | ||
b350bdf2 | 1067 | **** `devanagari' and `devan-util', and all associated devanagari-* and |
85a1f98d GM |
1068 | dev-* functions and variables (formerly used for Devanagari script). |
1069 | ||
b350bdf2 | 1070 | **** `kannada' and `knd-util', and all associated kannada-* and knd-* |
85a1f98d GM |
1071 | functions and variables (formerly used for Kannada script). |
1072 | ||
b350bdf2 | 1073 | **** `malayalam' and `mlm-util', and all associated malayalam-* and |
85a1f98d GM |
1074 | mlm-* functions and variables (formerly used for Malayalam script). |
1075 | ||
b350bdf2 | 1076 | **** `tamil' and `tml-util, and all associated tamil-* and tml-* |
85a1f98d | 1077 | functions and variables (formerly used for Tamil script). |
6a6b4d7d | 1078 | |
0bfd685e GM |
1079 | \f |
1080 | * Lisp Changes in Emacs 23.1 | |
8ab314f9 | 1081 | |
5d692341 EZ |
1082 | ** New primitives `list-system-processes' and `system-process-attributes' |
1083 | let Lisp programs access the processes that are running on the local | |
1084 | machine. See the doc strings of these functions for more details. | |
1085 | Not all platforms support accessing this information; on those that | |
1086 | don't, these primitives will return nil. | |
1087 | ||
b350bdf2 CY |
1088 | +++ |
1089 | ** New variable `user-emacs-directory'. | |
1090 | Use this instead of "~/.emacs.d". | |
43f8b275 | 1091 | |
b350bdf2 CY |
1092 | ** If a local hook function has a non-nil `permanent-local-hook' |
1093 | property, `kill-all-local-variables' does not remove it from the local | |
1094 | value of the hook variable; it remains even if you change major modes. | |
09e18d03 | 1095 | |
b350bdf2 CY |
1096 | ** `frame-inherited-parameters' lets new frames inherit parameters from |
1097 | the selected frame. | |
09e18d03 | 1098 | |
b350bdf2 CY |
1099 | ** New keymap `input-decode-map' overrides like key-translation-map, but |
1100 | applies before function-key-map. Also it is terminal-local contrary to | |
1101 | key-translation-map. Terminal-specific key-sequences are generally added to | |
1102 | this map rather than to function-key-map now. | |
09e18d03 | 1103 | |
b350bdf2 | 1104 | ** `ignore-errors' is now a standard macro (does not require the CL package). |
09e18d03 | 1105 | |
b350bdf2 CY |
1106 | ** `interprogram-paste-function' can now return one string or a list |
1107 | of strings. In the latter case, Emacs puts the second and following | |
1108 | strings on the kill ring. | |
09e18d03 | 1109 | |
b350bdf2 CY |
1110 | +++ |
1111 | ** In `condition-case', a handler can specify "let the debugger run first". | |
1112 | You do this by writing `debug' in the list of conditions to be handled, | |
1113 | like this: | |
09e18d03 | 1114 | |
b350bdf2 CY |
1115 | (condition-case nil |
1116 | (foo bar) | |
1117 | ((debug error) nil)) | |
09e18d03 | 1118 | |
b350bdf2 | 1119 | ** clone-indirect-buffer now runs the clone-indirect-buffer-hook. |
09e18d03 | 1120 | |
b350bdf2 CY |
1121 | ** `beginning-of-defun-function' now takes one argument, the count |
1122 | given to `beginning-of-defun'. | |
09e18d03 | 1123 | |
b350bdf2 CY |
1124 | +++ |
1125 | ** `file-remote-p' has new optional parameters IDENTIFICATION and CONNECTED. | |
1126 | IDENTIFICATION specifies which part of the remote identifier has to be | |
1127 | returned. With CONNECTED passed non-nil, it is checked whether a | |
1128 | remote connection has been established already. | |
09e18d03 | 1129 | |
87aae241 | 1130 | +++ |
b350bdf2 CY |
1131 | ** The new macro `declare-function' suppresses compiler warnings about |
1132 | undefined functions. | |
a1562258 | 1133 | |
b350bdf2 | 1134 | ** Changes to interactive function handling |
8ba31f36 | 1135 | |
b350bdf2 CY |
1136 | *** The new interactive spec code ^ says to first call |
1137 | handle-shift-selection if shift-select-mode is non-nil, before reading | |
1138 | the command arguments. This is used for shift-selection (see above). | |
e2947429 | 1139 | |
b350bdf2 CY |
1140 | *** Built-in functions can now have an interactive specification that |
1141 | is not a prompt string. If the `intspec' parameter of a `DEFUN' | |
1142 | starts with a `(', the string is evaluated as a Lisp form. | |
e2947429 | 1143 | |
b350bdf2 CY |
1144 | *** The interactive-form of a function can be added post-facto via the |
1145 | `interactive-form' symbol property. Mostly useful to add complex | |
1146 | interactive forms to subroutines. | |
d87be1df | 1147 | |
b350bdf2 | 1148 | ** Region changes |
3ae459e5 | 1149 | |
b350bdf2 CY |
1150 | *** Commands should use `use-region-p' to test whether there is |
1151 | an active region that they should operate on. | |
3ae459e5 | 1152 | |
b350bdf2 CY |
1153 | *** `region-active-p' returns non-nil when Transient Mark mode is |
1154 | enabled and there is an active region. This is NOT the best function | |
1155 | to use to test whether a command should operate on the region instead | |
1156 | of the usual behavior -- for that, use `use-region-p'. | |
58555d81 | 1157 | |
b350bdf2 CY |
1158 | *** If a command sets `transient-mark-mode' to (only . OLDVAL), that |
1159 | means to activate transient-mark-mode temporarily, until the next | |
1160 | unshifted point motion command or mark deactivation. Afterwards, | |
1161 | reset transient-mark-mode to the value OLDVAL. The values `only' and | |
1162 | `identity', introduced in Emacs 22, are now deprecated. | |
e5c4079c | 1163 | |
b350bdf2 | 1164 | ** Emacs session information |
13cda5f9 | 1165 | |
b350bdf2 CY |
1166 | *** The new variables `before-init-time' and `after-init-time' record the |
1167 | value of `current-time' before and after Emacs loads the init files. | |
a2bc5bdd | 1168 | |
b350bdf2 | 1169 | *** The new function `emacs-uptime' returns the uptime of an Emacs instance. |
d82c3d44 | 1170 | |
b350bdf2 CY |
1171 | *** The new function `emacs-init-time' returns the duration of the |
1172 | Emacs initialization. | |
50bfa18a | 1173 | |
b350bdf2 | 1174 | ** Changes affecting display-buffer |
39d0bf74 | 1175 | |
b350bdf2 CY |
1176 | *** New value nil for split-height-threshold inhibits vertical splitting |
1177 | unless there's no other window. | |
59b5d020 | 1178 | |
b350bdf2 | 1179 | *** New option split-width-threshold controls horizontal splitting. |
426e6ba0 | 1180 | |
b350bdf2 | 1181 | *** A window can be split horizontally even when it's not full-width. |
426e6ba0 | 1182 | |
b350bdf2 CY |
1183 | *** New option split-window-preferred-function can be set to a function |
1184 | to override the default splitting mechanism of display-buffer. | |
2d105adf | 1185 | |
b350bdf2 | 1186 | ** Minibuffer and completion changes |
b9694062 | 1187 | +++ |
b350bdf2 | 1188 | *** A list of default values can be specified for the DEFAULT argument of |
b9694062 JL |
1189 | functions `read-from-minibuffer', `read-string', `read-command', |
1190 | `read-variable', `read-buffer', `completing-read'. Elements of this list | |
1191 | are available for inserting into the minibuffer by typing `M-n'. | |
1192 | For empty input these functions return the first element of this list. | |
1193 | ||
90993beb | 1194 | *** New function `read-regexp' uses the regexp history and some useful |
4f75e082 | 1195 | regexp defaults (string at point, last Isearch/replacement regexp/string) |
90993beb JL |
1196 | via M-n when reading a regexp in the minibuffer. |
1197 | ||
b350bdf2 CY |
1198 | *** minibuffer-local-must-match-filename-map is now named |
1199 | minibuffer-local-filename-must-match-map. | |
66dc1ca2 | 1200 | |
b350bdf2 CY |
1201 | *** `all-completions' may now return the base size in the last cdr. |
1202 | Since this means the returned list is not properly nil-terminated, this | |
1203 | is an incompatible change and is thus enabled by the new variable | |
1204 | completion-all-completions-with-base-size. | |
66dc1ca2 | 1205 | |
b350bdf2 CY |
1206 | *** The `require-match' argument to `completing-read' accepts a new value |
1207 | `confirm-only'. | |
d03b9b31 | 1208 | |
b350bdf2 CY |
1209 | ** Search and replacement changes |
1210 | +++ | |
1211 | *** The regexp form \(?<num>:<regexp>\) specifies the group number explicitly. | |
1212 | +++ | |
1213 | *** New function `match-substitute-replacement' returns the result of | |
1214 | `replace-match' without actually using it in the buffer. | |
c60d543d | 1215 | |
b350bdf2 CY |
1216 | *** The new variable `replace-search-function' determines the function |
1217 | to use for searching in query-replace and replace-string. | |
3ae459e5 | 1218 | |
b350bdf2 CY |
1219 | *** The new variable `replace-re-search-function' determines the |
1220 | function to use for searching in `query-replace-regexp', | |
1221 | `replace-regexp', `query-replace-regexp-eval', and | |
1222 | `map-query-replace-regexp'. | |
4f4a84ec | 1223 | |
4f75e082 JL |
1224 | *** New keymap `search-map' bound to `M-s' provides global bindings |
1225 | for search related commands. | |
1226 | ||
1227 | *** New keymap `multi-query-replace-map' contains additonal keys bound | |
71554a21 JL |
1228 | to `automatic-all' and `exit-current' for multi-buffer interactive replacement. |
1229 | ||
b350bdf2 CY |
1230 | *** The variable `inhibit-changing-match-data', if non-nil, prevents |
1231 | the search and match primitives from changing the match data. | |
967b2682 | 1232 | |
b350bdf2 | 1233 | ** File handling changes |
8bf5c8a6 | 1234 | |
b350bdf2 CY |
1235 | *** set-file-modes is now interactive and can take the mode value in |
1236 | symbolic notation thanks to auxiliary functions. | |
d9774611 | 1237 | |
b350bdf2 CY |
1238 | *** If you set find-file-confirm-nonexistent-file to t, then C-x C-f |
1239 | requires confirmation before opening a non-existent file. | |
1240 | ||
1241 | ** Process changes | |
1242 | +++ | |
1243 | *** The new function `start-file-process' is similar to `start-process', | |
1244 | but obeys file handlers. The file handler is chosen based on | |
1245 | `default-directory'. The functions `start-file-process-shell-command' | |
1246 | and `process-file-shell-command' are also new; they call internally | |
1247 | `start-file-process' and `process-file', respectively. | |
1248 | ||
1249 | *** The new function `process-lines' executes an external program and | |
1250 | returns its output as a list of lines. | |
63571b5a | 1251 | |
d82c3d44 GM |
1252 | ** Character code, representation, and charset changes. |
1253 | ||
0caa490b | 1254 | The character code space is now 0x0..0x3FFFFF with no gap. |
d82c3d44 GM |
1255 | Characters of code 0x0..0x10FFFF are Unicode characters of the same code points. |
1256 | Characters of code 0x3FFF80..0x3FFFFF are raw 8-bit bytes. | |
1257 | ||
0caa490b | 1258 | Generic characters no longer exist. |
d82c3d44 | 1259 | |
b350bdf2 CY |
1260 | In buffers and strings, characters are represented by UTF-8 byte |
1261 | sequences in a multibyte buffer/string. | |
d82c3d44 | 1262 | |
b350bdf2 CY |
1263 | The concept of a charset has changed. A single character may belong |
1264 | to multiple charsets (e.g. a-grave, U+00E0, belongs to charsets | |
1265 | unicode, iso-8859-1, iso-8859-3, etc). | |
d82c3d44 GM |
1266 | |
1267 | *** The functions `encode-char' and `decode-char' now accept any character sets. | |
1268 | ||
1269 | *** The function `define-charset' now accepts a completely different | |
1270 | form of arguments (old-style arguments still work). | |
1271 | ||
d82c3d44 GM |
1272 | *** The value of the function `char-charset' depends on the current |
1273 | priorities of charsets. | |
1274 | ||
d82c3d44 GM |
1275 | *** The function get-char-code-property now accepts many Unicode base |
1276 | character properties. They are `name', `general-category', | |
1277 | `canonical-combining-class', `bidi-class', `decomposition', | |
1278 | `decimal-digit-value', `digit-value', `numeric-value', `mirrored', | |
1279 | `old-name', `iso-10646-comment', `uppercase', `lowercase', and | |
1280 | `titlecase'. | |
1281 | ||
b350bdf2 CY |
1282 | *** The functions `modify-syntax-entry' and `modify-category-entry' now |
1283 | accept a cons of characters as the first argument, and modify all | |
1284 | entries in that range of characters. | |
d82c3d44 | 1285 | |
b350bdf2 CY |
1286 | +++ |
1287 | *** `translation-table-for-input' is now obsolete. | |
d82c3d44 | 1288 | |
b350bdf2 | 1289 | *** New functions: |
d82c3d44 | 1290 | |
b350bdf2 CY |
1291 | **** `characterp' returns t if and only if the argument is a character. |
1292 | This replaces `char-valid-p', which is now obsolete. | |
d82c3d44 | 1293 | |
b350bdf2 | 1294 | **** `max-char' returns the maximum character code (currently #x3FFFFF). |
d82c3d44 | 1295 | |
b350bdf2 CY |
1296 | **** `define-charset-alias' defines an alias of a charset. |
1297 | ||
1298 | **** `set-charset-priority' sets priorities of charsets. | |
1299 | ||
1300 | **** `charset-priority-list' returns a prioritized list of charsets. | |
1301 | ||
1302 | **** `unibyte-string' makes a unibyte string from bytes. | |
1303 | ||
1304 | **** `define-char-code-property' defines a character code property. | |
1305 | ||
1306 | **** `char-code-property-description' returns the description string of | |
1307 | a character code property. | |
1308 | ||
1309 | *** New variables: | |
1310 | ||
7082ceb2 CY |
1311 | **** file-local-variables-alist stores an alist of file-local |
1312 | variables defined in the current buffer. | |
1313 | ||
b350bdf2 CY |
1314 | **** `find-word-boundary-function-table' is a char-table of functions to |
1315 | search for a word boundary. | |
1316 | ||
1317 | **** `char-script-table' is a char-table of script names. | |
1318 | ||
1319 | **** `char-width-table' is a char-table of character widths. | |
1320 | ||
1321 | **** `print-charset-text-property' controls how to handle `charset' text | |
1322 | property on printing a string. | |
1323 | ||
1324 | **** `printable-chars' is a char-table of printable characters. | |
d82c3d44 | 1325 | |
505d8756 | 1326 | ** Code conversion changes |
d82c3d44 GM |
1327 | |
1328 | *** The new function `define-coding-system' should be used to define a | |
1329 | coding system instead of `make-coding-system' (which is now obsolete). | |
1330 | ||
1331 | *** The functions `encode-coding-region' and `decode-coding-region' | |
1332 | have an optional 4th argument to specify where the result of | |
1333 | conversion should go. | |
1334 | ||
1335 | *** The functions `encode-coding-string' and `decode-coding-string' | |
1336 | have an optional 4th argument specifying a buffer to store the result | |
1337 | of conversion. | |
1338 | ||
b350bdf2 | 1339 | *** The functions `set-coding-priority' and `make-coding-system' are obsolete. |
d82c3d44 | 1340 | |
b350bdf2 | 1341 | *** New functions: |
d82c3d44 | 1342 | |
b350bdf2 CY |
1343 | **** `with-coding-priority' executes Lisp code using the specified |
1344 | coding system priority order. | |
d82c3d44 | 1345 | |
b350bdf2 CY |
1346 | **** `check-coding-systems-region' checks if the text in the region is |
1347 | encodable by the specified coding systems. | |
d82c3d44 | 1348 | |
b350bdf2 | 1349 | **** `coding-system-aliases' returns a list of aliases of a coding system. |
d82c3d44 | 1350 | |
b350bdf2 CY |
1351 | **** `coding-system-charset-list' returns a list of charsets supported |
1352 | by a coding system. | |
d82c3d44 | 1353 | |
b350bdf2 CY |
1354 | **** `coding-system-priority-list' returns a list of coding systems |
1355 | ordered by their priorities. | |
1356 | ||
1357 | **** `set-coding-system-priority' sets priorities of coding systems. | |
d82c3d44 GM |
1358 | |
1359 | ** There is a new input method, Robin, different from Quail. | |
0caa490b | 1360 | It has three functionalities: |
d82c3d44 GM |
1361 | i) a simple input method (converts an ASCII sequence into a string). |
1362 | ii) converts an existing buffer substring into another string | |
1363 | iii) reverse conversion (each character produced by a | |
1364 | robin rule can hold the original ASCII sequence as a char-code-property) | |
1365 | ||
1366 | *** The new function `robin-define-package' defines a Robin package. | |
1367 | ||
1368 | *** The new function `robin-modify-package' modifies an existing Robin package. | |
1369 | ||
1370 | *** The new function `robin-use-package' starts using a Robin package | |
1371 | as an input method. | |
1372 | ||
888d7d86 KH |
1373 | *** The new function `string-to-unibyte' is like `string-as-unibyte' |
1374 | but signals an error if STRING contains a non-ASCII, non-eight-bit | |
1375 | character. | |
1376 | ||
505d8756 | 1377 | ** Changes related to the new font backend |
2b7a2553 | 1378 | |
b19aa6dd GM |
1379 | Which font backends to use can be specified by the X resource "FontBackend". |
1380 | For instance, to use both X core fonts and Xft fonts: | |
2b7a2553 | 1381 | |
b19aa6dd | 1382 | Emacs.FontBackend: x,xft |
2b7a2553 | 1383 | |
b19aa6dd GM |
1384 | If this resource is not set, Emacs tries to use all font backends |
1385 | available on your graphic device. | |
d82c3d44 GM |
1386 | |
1387 | *** New frame parameter `font-backend' specifies a list of | |
1388 | font-backends supported by the frame's graphic device. On X, they are | |
1389 | currently `x' and `xft'. | |
1390 | ||
b350bdf2 CY |
1391 | *** The function `set-fontset-font' now accepts a script name as the |
1392 | second argument, and has an optional 5th argument to control how to | |
1393 | set the font. | |
d82c3d44 | 1394 | |
b350bdf2 | 1395 | *** New functions: |
d82c3d44 | 1396 | |
b350bdf2 | 1397 | **** `fontp' checks if the argument is a font-spec or font-entity. |
d82c3d44 | 1398 | |
b350bdf2 | 1399 | **** `font-spec' creates a new font-spec object. |
d54b8954 | 1400 | |
b350bdf2 | 1401 | **** `font-get' returns a font property value. |
d82c3d44 | 1402 | |
b350bdf2 | 1403 | **** `font-put' sets a font property value. |
d82c3d44 | 1404 | |
b350bdf2 | 1405 | **** `font-face-attributes' returns a plist of face attributes set by a font. |
d82c3d44 | 1406 | |
b350bdf2 | 1407 | **** `list-fonts' returns a list of font-entities matching a font spec. |
d82c3d44 | 1408 | |
b350bdf2 | 1409 | **** `font-font' returns the font-entity best matching the given font spec. |
d82c3d44 | 1410 | |
b350bdf2 | 1411 | **** `list-families' returns a list of family names of available fonts. |
d82c3d44 | 1412 | |
b350bdf2 CY |
1413 | **** `font-xlfd-name' returns an XLFD name of a given font spec, font |
1414 | entity, or font object. | |
1415 | ||
1416 | **** `clear-font-cache' clears all font caches. | |
d82c3d44 | 1417 | |
b350bdf2 | 1418 | ** Changes related to multiple-terminal (multi-tty) support |
24cdde13 | 1419 | |
b12f6e85 SM |
1420 | *** $TERM is now set to `dumb' for subprocesses. If you want to know the |
1421 | $TERM inherited by Emacs you will have to look inside initial-environment. | |
1422 | ||
6168122d SM |
1423 | *** $DISPLAY is now dynamically inherited from the frame's `display'. |
1424 | ||
b350bdf2 | 1425 | *** The `window-system' variable is now frame-local. The new |
24cdde13 | 1426 | `initial-window-system' variable contains the `window-system' value |
bbe3eb99 GM |
1427 | for the first frame. `window-system' is also now a function that |
1428 | takes a frame argument. | |
24cdde13 | 1429 | |
b350bdf2 CY |
1430 | *** The `keyboard-translate-table' variable and the terminal and |
1431 | keyboard coding systems are now terminal-local. | |
1432 | ||
24cdde13 GM |
1433 | *** You can specify a terminal device (`tty' parameter) and a terminal |
1434 | type (`tty-type' parameter) to `make-terminal-frame'. | |
1435 | ||
24cdde13 GM |
1436 | *** The function `make-frame-on-display' now works during a tty |
1437 | session, and `make-frame-on-tty' works during a graphical session. | |
1438 | ||
419f8f49 SM |
1439 | *** A new data type for terminals with functions: `get-device-terminal', |
1440 | `terminal-parameters', `terminal-parameter', `set-terminal-parameter'. | |
24cdde13 | 1441 | |
b350bdf2 CY |
1442 | *** Function key sequences are now mapped using `local-function-key-map', |
1443 | a new variable. This inherits from the global variable function-key-map, | |
1444 | which is not used directly any more. | |
92cd6a7c | 1445 | |
b350bdf2 | 1446 | *** New hooks: |
da406961 | 1447 | |
7082ceb2 CY |
1448 | **** before-hack-local-variables-hook is called after setting new |
1449 | variable file-local-variables-alist, and before actually applying the | |
1450 | file-local variables. | |
1451 | ||
b350bdf2 CY |
1452 | **** `suspend-tty-functions' and `resume-tty-functions' are called |
1453 | after a tty frame has been suspended or resumed, respectively. The | |
1454 | functions are called with the terminal id of the frame being | |
1455 | suspended/resumed as a parameter. | |
da406961 | 1456 | |
b350bdf2 CY |
1457 | **** The special hook `delete-terminal-functions' is called before |
1458 | deleting a terminal. | |
82866ad5 | 1459 | |
b350bdf2 | 1460 | *** New functions: |
24cdde13 | 1461 | |
b350bdf2 | 1462 | **** `environment' |
24cdde13 | 1463 | |
b350bdf2 | 1464 | **** `make-frame-on-tty' creates a new frame on another tty device. |
24cdde13 | 1465 | |
b350bdf2 | 1466 | **** `delete-tty' |
9f44d41a | 1467 | |
b350bdf2 | 1468 | **** `suspend-tty' |
ea2e3ef4 | 1469 | |
b350bdf2 | 1470 | **** `resume-tty'. |
8d371994 | 1471 | |
b350bdf2 | 1472 | *** `initial-environment' holds the environment inherited from Emacs's parent. |
8d371994 | 1473 | |
b350bdf2 | 1474 | ** Redisplay changes |
8d371994 | 1475 | |
b350bdf2 CY |
1476 | *** For underlined characters, the distance between the underline and |
1477 | the baseline is controlled by a new variable, `underline-minimum-offset'. | |
0a963185 | 1478 | |
b350bdf2 CY |
1479 | *** You can now pass the value of the `invisible' property to |
1480 | invisible-p to check whether it would cause the text to be invisible. | |
1481 | Convenient when checking invisibility of text with no buffer position | |
1482 | (e.g. in before/after-strings). | |
c69b0314 | 1483 | |
b350bdf2 | 1484 | *** `clear-image-cache' can be told to flush only images of a specific file. |
9f44d41a | 1485 | |
0c8b58e9 CY |
1486 | *** `vertical-motion' can now be given a goal column. |
1487 | It now accepts a cons cell (COLS . LINES) in its first argument, which | |
1488 | says to stop, where possible, at a pixel x-position equal to COLS | |
1489 | times the default column width. | |
1490 | ||
9ac64acd CY |
1491 | ** The Lisp interpreter now treats non-breaking space as whitespace. |
1492 | ||
b350bdf2 | 1493 | ** Miscellaneous new functions |
9f44d41a | 1494 | |
b350bdf2 CY |
1495 | *** `format-seconds' converts a number of seconds into a readable |
1496 | string of days, hours, etc. | |
9f44d41a | 1497 | |
b350bdf2 | 1498 | *** `apply-partially' performs a "curried" application of a function. |
abf13a8b | 1499 | |
b350bdf2 CY |
1500 | *** `read-shell-command' does what its name says, with completion. It |
1501 | uses the minibuffer-local-shell-command-map for that. | |
b2b387f9 | 1502 | |
b350bdf2 CY |
1503 | *** `buffer-swap-text' swaps text between two buffers. This can be |
1504 | useful for modes such as tar-mode, archive-mode, RMAIL. | |
967b2682 | 1505 | |
b350bdf2 CY |
1506 | *** `read-color' reads a color name using the minibuffer. |
1507 | ||
1508 | *** `face-all-attributes' returns an alist describing all the basic | |
1509 | attributes of a given face. | |
1510 | ||
1511 | *** `window-full-width-p' returns t if a window is as wide as its | |
1512 | frame. | |
1513 | ||
1514 | *** `split-string-and-unquote' does (what?) | |
1515 | ||
1516 | *** `combine-and-quote-strings' does (what?) | |
1517 | ||
1518 | *** `image-refresh' refreshes all images associated with a given image | |
1519 | specification. | |
64639e26 | 1520 | |
b350bdf2 | 1521 | *** The two new functions `looking-at-p' and `string-match-p' can do |
45595a4f RS |
1522 | the same matching as `looking-at' and `string-match' without changing |
1523 | the match data. | |
89835619 | 1524 | |
81efacf9 CY |
1525 | *** The two new functions `make-serial-process' and |
1526 | `serial-process-configure' provide a Lisp interface to the new serial | |
1527 | port support (see Emacs changes, above). | |
1528 | ||
b350bdf2 CY |
1529 | ** Miscellaneous new variables |
1530 | ||
1531 | *** `this-command-keys-shift-translated' is non-nil if the key | |
1532 | sequence invoking the current command was found by shift-translation. | |
1533 | ||
1534 | *** `window-point-insertion-type' determines the insertion-type of the | |
1535 | marker used for window-point. | |
1536 | ||
1537 | *** bookmark provides `bookmark-make-record-function' so special major | |
1538 | modes like Info can teach bookmark.el how to save and restore the | |
1539 | relevant data. | |
1540 | ||
1541 | *** `next-error-recenter' specifies how next-error should recenter the | |
1542 | visited source file. Its value can be a number (for example, 0 for | |
1543 | top line, -1 for bottom line), or nil for no recentering. | |
1544 | ||
1545 | *** `fill-forward-paragraph-function' specifies which function the | |
1546 | filling code should use to find paragraph boundaries. | |
1547 | ||
1548 | *** `custom-note-var-changed' tells Custom to treat the change in a | |
1549 | certain variable as having been made within Custom. | |
1550 | ||
9bae34bf | 1551 | \f |
0bfd685e | 1552 | * New Packages for Lisp Programming in Emacs 23.1 |
efeb796b | 1553 | |
b350bdf2 CY |
1554 | ** The new package avl-tree.el deals with the AVL tree data structure. |
1555 | ||
87aae241 | 1556 | +++ |
b350bdf2 CY |
1557 | ** The new package check-declare.el verifies the accuracy of |
1558 | declare-function macros (see Lisp Changes, above). | |
d445b3f8 | 1559 | |
20202f5e | 1560 | ** find-cmd.el can build `find' commands using lisp syntax. |
6dfcbe31 | 1561 | |
babc4609 JL |
1562 | ** The package misearch.el has been added. It allows Isearch to search |
1563 | through multiple buffers. A variable `multi-isearch-next-buffer-function' | |
1564 | defines the function to call to get the next buffer to search in the series | |
1565 | of multiple buffers. Top-level commands `multi-isearch-buffers', | |
1566 | `multi-isearch-buffers-regexp', `multi-isearch-files' and | |
1567 | `multi-isearch-files-regexp' accept a single argument that specifies | |
1568 | a list of buffers/files to search for a string/regexp. | |
9097e8af | 1569 | |
b350bdf2 CY |
1570 | ** The new major mode `special-mode' is intended as a parent for |
1571 | major modes such as those that set the "'mode-class 'special" property. | |
d53a60a6 | 1572 | |
05197f40 | 1573 | \f |
a933dad1 | 1574 | ---------------------------------------------------------------------- |
5b87ad55 | 1575 | This file is part of GNU Emacs. |
a933dad1 | 1576 | |
ab73e885 | 1577 | GNU Emacs is free software: you can redistribute it and/or modify |
5b87ad55 | 1578 | it under the terms of the GNU General Public License as published by |
ab73e885 GM |
1579 | the Free Software Foundation, either version 3 of the License, or |
1580 | (at your option) any later version. | |
5b87ad55 GM |
1581 | |
1582 | GNU Emacs is distributed in the hope that it will be useful, | |
1583 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
1584 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
1585 | GNU General Public License for more details. | |
a933dad1 | 1586 | |
5b87ad55 | 1587 | You should have received a copy of the GNU General Public License |
ab73e885 | 1588 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
a933dad1 | 1589 | |
05197f40 | 1590 | \f |
a933dad1 DL |
1591 | Local variables: |
1592 | mode: outline | |
1593 | paragraph-separate: "[ \f]*$" | |
1594 | end: | |
ab5796a9 | 1595 | |
a533413c | 1596 | arch-tag: e759449d-88b3-4de4-9900-3a6c3dfa23e2 |