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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 | ||
006a2cde CY |
57 | ** New NeXTSTEP-based port |
58 | This provides support for GNUStep (via the GNUStep libraries) and Mac | |
59 | OS X (via the Cocoa libraries). See nextstep/README and | |
60 | nextstep/INSTALL in the Emacs source directory. | |
61 | ||
62 | ** Mac OS X is no longer supported via Carbon. | |
63 | Use the NeXTSTEP port, described above. | |
36e625ec | 64 | |
09e18d03 CY |
65 | ** The new configuration option "--with-dbus" enables D-Bus language |
66 | bindings for Emacs. | |
07e5c0b0 | 67 | |
bb9f7948 EZ |
68 | ** Support for many obsolete platforms has been removed. |
69 | See the list at the end of etc/MACHINES for details. | |
2e0ef05b | 70 | --- |
09e18d03 | 71 | *** Support for systems without alloca has been removed. |
2e0ef05b | 72 | --- |
09e18d03 | 73 | *** Support for Sun windows has been removed. |
2e0ef05b CY |
74 | --- |
75 | *** The `emacstool' utility has been removed. | |
09e18d03 | 76 | |
006a2cde CY |
77 | ** The following platforms will be removed in a future Emacs version: |
78 | ||
79 | *** Libc version 5 on GNU/Linux. | |
80 | ||
81 | *** Old FreeBSD and NetBSD systems based on the COFF executable | |
82 | format. | |
83 | ||
84 | *** Solaris versions 2.6 and below. | |
85 | ||
32847230 CY |
86 | *** Solaris on IBM RS6000 machines. |
87 | ||
88 | *** UNIX System V (the original SysV, not later platforms based on it). | |
89 | ||
90 | *** Platforms not supporting shared libraries (i.e., requiring the | |
91 | NO_SHARED_LIBS compilation flag). | |
006a2cde | 92 | |
2e0ef05b | 93 | --- |
a46ee55c GM |
94 | ** The configure options `--with-gcc', `--without-gcc' have been removed. |
95 | Configure will use gcc by default. Set the CC environment variable if | |
96 | you need control over which C compiler is used. | |
97 | ||
09e18d03 CY |
98 | ** The refcards are now shipped as PDF files. |
99 | ||
2e0ef05b | 100 | --- |
09e18d03 CY |
101 | ** Emacs 23 comes with a new set of default icons. |
102 | Various resolutions are available as etc/images/icons/hicolor/*/apps/emacs.png. | |
103 | The Emacs 22 icon is available as `emacs22.png' in the same location. | |
4e5cdb4f | 104 | \f |
6dadd99f NR |
105 | * Changes in Emacs 23.1 |
106 | ||
06b62770 AR |
107 | ** Emacs can now be built under the Cocoa libraries on Mac OS X and GNUstep |
108 | libraries on other machines. Specify --with-ns to configure for this. By | |
109 | default a self-contained app will be built (containing all lisp). To | |
110 | install/share lisp with other emacsen (e.g. X11 build) use | |
111 | --disable-ns-self-contained. Use 'info-ns-emacs' or first entry under Help | |
112 | menu when running for more information. | |
113 | ||
0bcfd7d7 SM |
114 | ** `where-is-preferred-modifier' can specify your favorite modifier. |
115 | ||
09e18d03 | 116 | ** Improved X Window System support |
ba5ff07b | 117 | |
09e18d03 CY |
118 | *** Emacs now supports using both X displays and ttys in one session. |
119 | With an Emacs server active (M-x server-start), `emacsclient -t' | |
120 | creates a tty frame connected to the running emacs server. You can | |
121 | use any number of different ttys. `emacsclient -c' creates a new X11 | |
122 | frame on the current $DISPLAY (or a tty frame if $DISPLAY is not set). | |
780d7bb9 RS |
123 | |
124 | You can test for the presence of this feature in your Lisp code by | |
125 | testing for the `multi-tty' feature. | |
126 | ||
09e18d03 CY |
127 | **** Emacsclient can now open new terminal frames. |
128 | Now, the default behavior is to open a new Emacs frame by default. | |
129 | Use the -c option to get the old behavior of opening files in the | |
130 | currently selected Emacs frame. | |
d82c3d44 | 131 | |
09e18d03 CY |
132 | *** The new command close-display-connection closes a connection to a |
133 | remote display. | |
d82c3d44 | 134 | |
09e18d03 CY |
135 | *** Emacs now supports the XEmbed specification. |
136 | You can embed Emacs in another application on X11. The new command line | |
137 | option --parent-id is used to pass the parent window id to Emacs. See | |
7b476dbe JD |
138 | http://standards.freedesktop.org/xembed-spec/xembed-spec-latest.html |
139 | for details about XEmbed. | |
140 | ||
09e18d03 CY |
141 | *** Emacs can now set the frame opacity. |
142 | The opacity of a frame can be controlled by setting the `alpha' frame | |
143 | parameter. This only takes effect on a compositing window manager for | |
0f784aa6 JR |
144 | the X Window System, such as Compiz, Beryl and Compiz Fusion, or on |
145 | Windows 2000 and later versions of Windows. | |
55f9bad5 GM |
146 | |
147 | The alpha parameter should be an integer between 0 (transparent) and | |
09e18d03 CY |
148 | 100 (opaque), or a float number between 0.0 and 1.0. It can also be a |
149 | cons cell (ACTIVE . INACTIVE), where ACTIVE is the opacity of an | |
150 | active frame and INACTIVE is the opactity of non-active frames. | |
55f9bad5 | 151 | |
09e18d03 CY |
152 | The variable `frame-alpha-lower-limit' defines a lower bound for the |
153 | opacity; the default is 20. | |
55f9bad5 | 154 | |
09e18d03 | 155 | ** Internationalization changes |
fec8ef06 | 156 | |
09e18d03 CY |
157 | *** The Emacs character set is now a superset of Unicode. |
158 | (It has about four times the code space, which should be plenty). | |
0a963185 | 159 | |
09e18d03 CY |
160 | The internal encoding used for buffers and strings is now |
161 | Unicode-based and called `utf-8-emacs'. This encoding is backwards | |
162 | compatible with Unicode's UTF-8 encoding. The internal encoding | |
163 | previously used by Emacs, `emacs-mule', is still available. | |
6dadd99f | 164 | |
09e18d03 CY |
165 | During byte-compilation, Emacs 23 uses `utf-8-emacs' to write files. |
166 | As a result, byte-compiled files containing non-ASCII characters can't | |
167 | be read by earlier versions of Emacs. Files compiled by Emacs 20, 21, | |
168 | or 22 are loaded correctly as emacs-mule (whether or not they contain | |
169 | multibyte characters). This takes somewhat more time, so it may be | |
170 | worth recompiling existing .elc files which don't need to be shared | |
171 | with older Emacsen. | |
3ae459e5 | 172 | |
09e18d03 | 173 | *** There are new coding systems/aliases; see M-x list-coding-systems. |
c2e8590b | 174 | |
09e18d03 CY |
175 | *** There is a new charset implementation with many new charsets. |
176 | See M-x list-character-sets. New charsets can be defined conveniently | |
177 | as tables of unicodes. | |
1abe3a1e | 178 | |
09e18d03 CY |
179 | **** The dimension of a charset is now 1, 2, 3, or 4, and the size of |
180 | each dimension is no longer limited to 94 or 96. | |
eb28688c | 181 | |
09e18d03 CY |
182 | **** A dynamic charset priority list is used to infer the charset of |
183 | characters for display. | |
6c5d503f | 184 | |
09e18d03 CY |
185 | *** There are new language environments for Chinese-GBK, |
186 | Chinese-GB18030, Khmer, Bengali, Punjabi, Gujarati, Oriya, Telugu, | |
187 | Sinhala, and TaiViet. | |
c9447ae1 | 188 | |
09e18d03 CY |
189 | *** The minor modes unify-8859-on-encoding-mode and |
190 | unify-8859-on-decoding-mode are obsolete. | |
d466e9fc | 191 | |
09e18d03 | 192 | ** Emacs now supports serial port access on GNU/Linux, Unix, and |
81efacf9 CY |
193 | Windows. The new command `serial-term' starts an interactive terminal |
194 | on a serial port. The serial port can be configured at runtime with | |
195 | the mode-line mouse menu. | |
6c5d503f | 196 | |
09e18d03 | 197 | ** Menu Bar changes |
81efacf9 | 198 | --- |
09e18d03 CY |
199 | *** In the Options menu, the "Set Default Font" item applies the |
200 | selected font to the `default' face on all frames, not just the | |
201 | current frame. Furthermore, if Emacs is compiled with both GTK and | |
202 | Fontconfig support, the "Set Default Font" item uses the GTK font | |
203 | selection dialog instead of an Emacs pop-up menu. | |
81efacf9 | 204 | --- |
09e18d03 CY |
205 | *** The font setting chosen by "Set Default Font" is saved if the |
206 | "Save Options" item is used. | |
1b21ee06 | 207 | |
b350bdf2 CY |
208 | *** The Tools menu contains a new Encryption/Decryption submenu. |
209 | This contains commands provided by EasyPG, the newly-included | |
210 | interface to GnuPG (see New Modes and Packages). | |
81efacf9 CY |
211 | --- |
212 | *** In the Options menu, the "Truncate Long Lines in the Buffer" entry | |
213 | has been replaced with a submenu offering three different ways to | |
214 | handle long lines: truncation, continuation at the window edge, and | |
215 | the new word wrapping option (see Editing Changes, below). | |
5c4a15b3 | 216 | |
09e18d03 | 217 | ** Mode-line changes |
a6b85944 | 218 | +++ |
09e18d03 CY |
219 | *** The mode-line displays a `@', instead of `-', if the |
220 | default-directory for the current buffer is on a remote machine. | |
c4c9b6f9 | 221 | |
09e18d03 CY |
222 | *** The mode-line displays a mode menu when mouse-1 is clicked on a |
223 | minor mode, in the same way as it already did for major modes. | |
b3cf10d7 | 224 | |
09e18d03 CY |
225 | *** The `mode-line-emphasis' face is used to highlight certain |
226 | mode-line information (e.g. waiting for a VC command to finish). | |
d82c3d44 | 227 | |
09e18d03 CY |
228 | ** Directory-local variables can now be defined. |
229 | By default, Emacs looks in .dir-settings.el for directory-local | |
230 | variables. For more information, see `set-directory-project' and | |
231 | `define-project-bindings'. | |
307f3501 | 232 | |
6dadd99f | 233 | \f |
0bfd685e | 234 | * Startup Changes in Emacs 23.1 |
21f7b9d8 | 235 | |
a6b85944 | 236 | +++ |
3063e326 JL |
237 | ** The option `inhibit-startup-screen' (with aliases to old names |
238 | `inhibit-splash-screen' and `inhibit-startup-message') doesn't inhibit | |
239 | display of the initial message in the *scratch* buffer. If you don't | |
240 | want to display the initial message in the *scratch* buffer at startup, | |
241 | you can set the option `initial-scratch-message' to nil. | |
242 | ||
56e1896b JL |
243 | ** New user option `initial-buffer-choice' specifies what to display |
244 | after starting Emacs: startup screen, *scratch* buffer, visiting a | |
245 | file or directory. | |
246 | ||
aa5310e4 DK |
247 | ** New alias `argv' for `command-line-args-left' |
248 | This is a convenience alias, so that one can write `(pop argv)' | |
249 | inside of --eval command line arguments in order to access | |
250 | following arguments. | |
f8fd7ed3 GM |
251 | |
252 | ** The abbrev file is no longer read at startup in batch mode. | |
c44da964 | 253 | \f |
0bfd685e | 254 | * Incompatible Editing Changes in Emacs 23.1 |
b58cb59f | 255 | |
d1949cd5 JL |
256 | ** In Dired, `dired-flag-garbage-files' is rebound from `&' to `%&' |
257 | on the regexp command prefix map. | |
258 | ||
117907d4 JL |
259 | +++ |
260 | ** In Dired-x, all command guesses for ! are now added to the default | |
261 | list accessible by M-n instead of pushing all guesses temporarily into | |
262 | the history list. | |
263 | ||
81efacf9 | 264 | --- |
e405fa5f | 265 | ** The following input methods were removed in Emacs 22.2, but this was |
9a930d75 | 266 | not advertised: danish-alt-postfix, esperanto-alt-postfix, |
e405fa5f RS |
267 | finnish-alt-postfix, german-alt-postfix, icelandic-alt-postfix, |
268 | norwegian-alt-postfix, scandinavian-alt-postfix, spanish-alt-postfix, | |
269 | and swedish-alt-postfix. Use the versions without "alt-", which are | |
270 | identical. | |
0b0914ae | 271 | |
406c0f12 | 272 | \f |
0bfd685e | 273 | * Editing Changes in Emacs 23.1 |
406c0f12 | 274 | |
0c8b58e9 CY |
275 | ** The C-n and C-p line-motion commands now move by screen lines, |
276 | taking continued lines and variable-width characters into account. | |
277 | Setting `line-move-visual' to nil reverts this to the previous | |
278 | behavior (motion by logical lines based on buffer contents alone). | |
279 | ||
09e18d03 CY |
280 | ** C-x C-c now invokes `save-buffers-kill-terminal', and C-z now |
281 | invokes `suspend-frame'. This change is for compatibility with the | |
282 | new multi-tty support (see `Improved X Window System support' above). | |
3ae459e5 | 283 | |
09e18d03 | 284 | ** Mark changes |
59b5d020 | 285 | +++ |
3ae459e5 | 286 | *** Transient Mark mode is now on by default. |
3ae459e5 CY |
287 | +++ |
288 | *** mark-even-if-inactive now defaults to t | |
3ae459e5 | 289 | +++ |
b350bdf2 CY |
290 | *** When Transient Mark mode is on, C-SPC C-SPC pushes a mark without |
291 | activating it. | |
1ac03a31 | 292 | +++ |
3ae459e5 CY |
293 | *** When Transient Mark mode is on, M-q now fills the region if the |
294 | region is active. Otherwise, it fills the current paragraph. | |
ecde850a | 295 | +++ |
3ae459e5 CY |
296 | *** When Transient Mark mode is on, M-$ now checks spelling of the |
297 | region if the region is active. Otherwise, it checks spelling of the | |
dc868f13 | 298 | word at point. |
3ae459e5 CY |
299 | *** When Transient Mark mode is on, TAB now indents the region if the |
300 | region is active. | |
3ae459e5 CY |
301 | *** `use-empty-active-region' controls whether an empty active region |
302 | in Transient Mark mode should make commands operate on that empty | |
303 | region. | |
304 | ||
305 | ** Temporarily active regions | |
4502d15f | 306 | +++ |
3ae459e5 CY |
307 | *** The new variable shift-select-mode, non-nil by default, controls |
308 | shift-selection. When Shift Select mode is on, shift-translated | |
309 | motion keys (e.g. S-left and S-down) activate and extend a temporary | |
310 | region, similar to mouse-selection. | |
4502d15f | 311 | +++ |
3ae459e5 CY |
312 | *** Temporarily active regions, created using shift-selection or |
313 | mouse-selection, are not necessarily deactivated in the next command. | |
314 | They are only deactivated after point motion commands that are not | |
315 | shift-translated, or after commands that would ordinarily deactivate | |
316 | the mark in Transient Mark mode (e.g., any command that modifies the | |
317 | buffer). | |
318 | ||
505d8756 | 319 | ** Minibuffer changes |
297b8ccd | 320 | |
09e18d03 CY |
321 | *** Operations like C-x b and C-x C-f, which use switch-to-buffer, do |
322 | not fail any more when used in a minibuffer or a dedicated window. | |
323 | Instead, they fallback on using pop-to-buffer, which will use some | |
324 | other window. | |
23d2b215 | 325 | |
d47a29c1 JL |
326 | *** When M-n in the minibuffer reaches the end of the list of defaults, |
327 | it adds the completion list to the end, so next M-n continues putting | |
328 | completion items to the minibuffer. The same principle applies to | |
329 | incremental search commands as well: C-s or C-M-s starts searching | |
330 | the default values and after the end of defaults they continue | |
331 | searching minibuffer completion items. | |
f3ed2b83 | 332 | |
09e18d03 CY |
333 | *** Minibuffer input of shell commands now comes with completion. |
334 | ||
335 | *** In the `C-x d' (Dired) prompt, typing M-n gives the visited file | |
336 | name of the current buffer. | |
dc2f6c05 | 337 | |
09e18d03 CY |
338 | *** In the M-! (shell-command) prompt, M-n provides some default commands. |
339 | These are guessed using the file extension of the current file, based | |
340 | on the file-handlers specified in the operating system's `mailcap' | |
341 | file. The ! command in Dired (dired-do-shell-command) works | |
342 | similarly, using the file displayed on the current line. | |
117907d4 JL |
343 | |
344 | *** A list of regexp default values is available via M-n for `occur', | |
345 | `keep-lines', `flush-lines' and `how-many'. This list includes the active | |
4f75e082 JL |
346 | region in transient-mark-mode, the word under the cursor, the last Isearch |
347 | regexp, the last Isearch string and the last replacement regexp. | |
117907d4 | 348 | |
4f75e082 JL |
349 | *** Isearch started in the minibuffer searches in the minibuffer history. |
350 | Reverse Isearch commands (C-r, C-M-r) search in previous minibuffer | |
351 | history elements, and forward Isearch commands (C-s, C-M-s) search in | |
297b8ccd JL |
352 | next history elements. When the reverse search reaches the first history |
353 | element, it wraps to the last history element, and the forward search | |
354 | wraps to the first history element. When the search is terminated, the | |
355 | history element containing the search string becomes the current. | |
356 | ||
6c897494 CY |
357 | *** The variable read-file-name-completion-ignore-case overrides |
358 | completion-ignore-case for file name completion. | |
359 | ||
360 | *** The variable read-buffer-completion-ignore-case overrides | |
361 | completion-ignore-case for buffer name completion. | |
362 | ||
505d8756 GM |
363 | ** Face changes |
364 | ||
b350bdf2 CY |
365 | *** S-down-mouse-1 now pops up a menu for changing the font and text |
366 | size of the default face in the current buffer. The face is changed | |
367 | via face remapping (see below). | |
d2d160bd | 368 | |
f20186fd GM |
369 | *** FIXME face-remap |
370 | ||
09e18d03 | 371 | ** Primary selection changes |
0091c67e | 372 | |
09e18d03 CY |
373 | *** If `select-active-regions' is t, setting the mark automatically |
374 | makes the new region into the primary selection (for interaction with | |
375 | other window applications). If you enable this, you might want to | |
376 | bind `mouse-yank-primary' to Mouse-2. | |
c160dc76 | 377 | |
b350bdf2 CY |
378 | *** You can disable kill ring commands from accessing the primary |
379 | selection by setting `x-select-enable-primary' to nil. | |
2e282009 | 380 | |
09e18d03 | 381 | ** Completion changes |
1816bda7 | 382 | |
09e18d03 CY |
383 | *** `completion-styles' can be customized to choose your favorite |
384 | completion style. | |
c06c430f | 385 | |
09e18d03 | 386 | *** The default completion styles include a form of partial-completion. |
c06c430f | 387 | |
09e18d03 CY |
388 | *** The new command `minibuffer-force-complete' chooses one of the |
389 | possible completions, rather than stopping at the common prefix. | |
a2e0b5dd | 390 | |
b350bdf2 CY |
391 | *** `completion-auto-help' can be set to `lazy' to list the |
392 | completions only if you repeat the completion. This was already | |
393 | supported in `partial-completion-mode'. | |
a0818148 | 394 | |
85b1de32 CY |
395 | ** Continuation lines can be wrapped at word boundaries |
396 | (word-wrapping) instead of the right window edge. The new per-buffer | |
397 | variable `word-wrap', if non-nil turns on word-wrapping. Word | |
398 | wrapping does not take place if continuation lines are not shown, | |
399 | e.g. if truncate-lines is non-nil. | |
400 | ||
463c6766 CY |
401 | ** Window management changes |
402 | ||
403 | *** truncate-partial-width-windows now accepts integer values, which | |
404 | specify a minimum window width for partial-width windows, below which | |
405 | lines are truncated. The default has been changed to 30. | |
406 | ||
407 | *** The new command balance-windows-area balances windows both | |
408 | vertically and horizontally. | |
409 | ||
09e18d03 | 410 | ** Miscellaneous changes: |
3f7194ed | 411 | |
09e18d03 CY |
412 | *** C-l is bound to the new command recenter-top-bottom, rather than recenter. |
413 | This moves the current line to window center, top and bottom on | |
414 | successive invokations. | |
15f3eb73 | 415 | |
09e18d03 | 416 | *** scroll-preserve-screen-position also preserves the column position. |
c154c0be | 417 | |
09e18d03 CY |
418 | *** If `yank-pop-change-selection' is t, rotating the kill ring also |
419 | updates the selection or clipboard to the current yank, just as M-w | |
420 | would do so with the text it copies to the kill ring. | |
421 | ||
422 | +++ | |
423 | *** C-M-% now shows replacement as it would look in the buffer, with | |
424 | `\N' and `\&' substituted according to the match. Old behavior can be | |
425 | restored by customizing `query-replace-show-replacement'. | |
426 | ||
427 | *** The command shell prompts for the default directory, when it is | |
428 | called with a prefix and the default directory is a remote file name. | |
429 | This is because some file name handlers (like ange-ftp) are not able to | |
430 | run processes remotely. | |
431 | ||
432 | *** The new command kill-matching-buffers kills buffers whose name | |
433 | matches a regexp. | |
434 | ||
b350bdf2 CY |
435 | *** The new commands `pp-macroexpand-expression' and |
436 | `pp-macroexpand-last-sexp' pretty-print macro expansions. | |
8f377a4b | 437 | |
09e18d03 CY |
438 | \f |
439 | * New Modes and Packages in Emacs 23.1 | |
e11910e2 | 440 | |
09e18d03 CY |
441 | ** FIXME add details of new packages imported from lisp/gnus. |
442 | [Maybe some information from doc/misc/gnus-coding.texi can be reused] | |
c06c430f | 443 | |
e11910e2 GM |
444 | ** Auto Composition Mode is a minor mode that composes characters |
445 | automatically when they are displayed. It is globally on by default. | |
446 | It uses `auto-composition-function' (default `auto-compose-chars'). | |
447 | ||
09e18d03 | 448 | ** Bubbles, a new game, is similar to SameGame. |
f6b26818 | 449 | |
7ef39c6e GM |
450 | ** bug-reference.el provides clickable links to bug reports. |
451 | ||
b350bdf2 | 452 | ** copyright.el provides utilities for updating copyright notices in files. |
09e18d03 CY |
453 | |
454 | ** dbus.el provides D-Bus language bindings. | |
455 | D-Bus is an inter-process communication mechanism for applications | |
b350bdf2 | 456 | residing on the same host. See the manual for details. |
09e18d03 | 457 | |
b350bdf2 CY |
458 | ** Doc View Mode allows viewing of PDF, PostScript and DVI documents. |
459 | One can also search for a regular expression in the document. For | |
460 | details, see the commentary in doc-view.el. | |
09e18d03 | 461 | |
b350bdf2 CY |
462 | ** EasyPG provides an interface to the GNU Privacy Guard (GnuPG). |
463 | It includes a GnuPG keyring browser, cryptographic operations on | |
464 | regions and files, and automatic encryption of *.gpg files. For | |
465 | details, see the EasyPG Assistant User's Manual. | |
09e18d03 CY |
466 | |
467 | ** json.el is a library for parsing and generating JSON | |
468 | (JavaScript Object Notation), a lightweight data-interchange format. | |
469 | ||
470 | ** linum.el is a new minor mode to display line numbers for the | |
471 | current buffer. | |
472 | ||
4b4eb083 CY |
473 | ** mairix.el is an interface to mairix, a free tool for indexing and |
474 | searching locally stored mail. It allows you to query mairix and | |
475 | display the search results with Rmail, Gnus and VM. Note that there | |
476 | is an existing Gnus back end, nnmairix.el, which should be used with | |
477 | Maildir/MH setups. | |
478 | ||
09e18d03 CY |
479 | ** minibuffer-indicate-depth-mode shows the minibuffer depth in the prompt. |
480 | ||
481 | ** nXML Mode | |
482 | This is a new mode for editing XML documents. It allows a schema to | |
483 | be associated with the XML document being edited, using Relax NG as | |
484 | the schema language. The schema is used to provide two key features: | |
485 | ||
486 | *** Continuous validation. nXML validates as you type, highlighting | |
487 | any invalid parts of your document. | |
488 | ||
489 | *** Completion. nXML can assist you in entering an element name, | |
490 | attribute name or data value by using information about what is | |
491 | allowed by the schema in that context. | |
492 | ||
493 | ** proced.el provides a Dired-like interface for operating on processes. | |
494 | Proced makes an Emacs buffer containing a listing of the current | |
495 | processes (using ps(1)). You can use the normal Emacs commands to | |
496 | move around in this buffer, and special Proced commands to operate on | |
497 | the processes listed. | |
498 | ||
499 | ** Remember Mode is a mode for jotting down things to remember. | |
500 | Notes can be saved to a Diary file. For details, see the Remember | |
501 | Manual. | |
502 | ||
503 | ** RST mode is a major mode for editing ReSTructured-Text files. | |
c2d0b538 | 504 | |
12f165e9 CY |
505 | ** Visual Line mode provides support for editing by visual lines. |
506 | It turns on word-wrapping in the current buffer, and rebinds C-a, C-e, | |
507 | and C-k to commands that operate by visual lines instead of logical | |
508 | lines. This is a more reliable replacement for longlines-mode. | |
509 | ||
c934813f GM |
510 | ** A new `whitespace' package has been installed, and the pre-existing one |
511 | renamed to `old-whitespace'. | |
2f56f788 VJL |
512 | Now, besides reporting bogus blanks, whitespace package has a minor mode and a |
513 | global minor mode to visualize blanks (TAB, (HARD) SPACE and NEWLINE). The | |
514 | visualization is made via faces and/or display table. Also it is possible to | |
515 | select which kind of blanks should be visualized, for example, trailing blanks, | |
516 | leading blanks, spaces, tabs, newlines, etc. | |
c934813f | 517 | |
0c68a24b MA |
518 | ** xesam.el is an implementation of Xesam, an interface to (desktop) |
519 | search engines like Beagle, Strigi, and Tracker. The Xesam API | |
520 | requires D-Bus for communication. | |
521 | ||
09e18d03 CY |
522 | ** zeroconf.el offers service discovery and service publishing |
523 | interfaces according to the zeroconf specification. It communicates | |
524 | with Avahi, a zeroconf implementation, via D-Bus messages on systems | |
525 | which have installed this software. | |
526 | ||
527 | \f | |
528 | * Changes in Specialized Modes and Packages in Emacs 23.1 | |
529 | ||
355b422f VJL |
530 | ** Diff mode |
531 | *** New function `diff-show-trailing-blanks'. | |
532 | ||
09e18d03 | 533 | ** Abbrev has been rewritten in Elisp and extended with more flexibility. |
e047f448 | 534 | *** New functions: abbrev-get, abbrev-put, abbrev-table-get, abbrev-table-put, |
a3709a8c | 535 | abbrev-table-p, abbrev-insert, abbrev-table-menu. |
e047f448 SM |
536 | *** Special hook `abbrev-expand-functions' obsoletes `pre-abbrev-expand-hook'. |
537 | *** `make-abbrev-table', `define-abbrev', `define-abbrev-table' all take | |
538 | extra arguments for arbitrary properties. | |
539 | *** New variable `abbrev-minor-mode-table-alist'. | |
540 | *** `local-abbrev-table' can hold a list of abbrev-tables. | |
541 | *** Abbrevs have now the following special properties: | |
79415279 | 542 | `:count', `:system', `:enable-function', `:case-fixed'. |
e047f448 SM |
543 | *** Abbrev-tables have now the following special properties: |
544 | `:parents', `:case-fixed', `:enable-function', `:regexp', | |
545 | `abbrev-table-modiff'. | |
546 | ||
09e18d03 CY |
547 | ** Apropos |
548 | *** `apropos-library' describes the elements defined in a given library. | |
549 | *** Set `apropos-compact-layout' is you want a more compact (but wider) layout. | |
0253fffa | 550 | |
09e18d03 | 551 | ** Archive Mode has basic support to browse Rar archives. |
0253fffa | 552 | |
09e18d03 | 553 | ** BibTeX mode |
bafbec39 | 554 | |
09e18d03 | 555 | *** New command `bibtex-initialize' (re)initializes BibTeX buffers. |
bafbec39 | 556 | |
09e18d03 CY |
557 | *** New `bibtex-entry-format' options `whitespace', `braces', and |
558 | `string', disabled by default. | |
12bbb989 | 559 | |
09e18d03 CY |
560 | *** New variable `bibtex-cite-matcher-alist' contains rules to |
561 | identify cited keys in BibTeX entries, used by `bibtex-find-crossref'. | |
9097e8af | 562 | |
09e18d03 | 563 | *** Command `bibtex-url' allows multiple URLs per entry. |
4c24d241 | 564 | |
09e18d03 | 565 | ** Calendar and diary |
320bc739 | 566 | |
09e18d03 CY |
567 | +++ |
568 | *** There is a new date style, `iso', essentially year/month/day. | |
569 | The variable `european-calendar-style' is obsolete - use `calendar-date-style'. | |
570 | Similarly, the commands `american-calendar' and `european-calendar' | |
571 | should be replaced by `calendar-set-date-style'. | |
c3bb6fdb | 572 | |
09e18d03 CY |
573 | +++ |
574 | *** The calendar namespace has been rationalized. | |
575 | All functions and variables now begin with a `calendar-', `diary-', or | |
576 | `holiday-' prefix. The various calendar systems have secondary | |
577 | prefixes, eg `calendar-french-'. The old names you are likely to use | |
578 | directly still exist, for the time being, as aliases, but please start | |
579 | using the new names. | |
580 | ||
e889393b GM |
581 | *** The whitespace in the calendar layout can be customized. |
582 | See the variables: | |
583 | calendar-left-margin, calendar-intermonth-spacing, calendar-column-width, | |
584 | calendar-day-header-width, and calendar-day-digit-width. | |
585 | ||
586 | *** Text (e.g. ISO weeks) can be displayed between the calendar months. | |
587 | See the variables calendar-intermonth-header and calendar-intermonth-text. | |
588 | ||
09e18d03 CY |
589 | *** The function `holiday-chinese' computes holidays on the Chinese calendar. |
590 | It has been used to add items to the list `holiday-oriental-holidays'. | |
591 | ||
592 | *** `diary-remind' accepts a negative number -DAYS as a shorthand for | |
593 | the list (1 2 ... DAYS). | |
24cdde13 | 594 | |
a6b85944 CY |
595 | ** Change Log mode |
596 | ||
597 | *** The new command C-c C-f (change-log-find-file) finds the file | |
598 | associated with the current log entry. | |
599 | ||
600 | *** The new command C-c C-c (change-log-goto-source) goes to the | |
601 | source code associated with a log entry. | |
602 | ||
76be286d DN |
603 | ** Compile and grep modes |
604 | ||
605 | *** The mode-line entry for the *compilation* and *grep* buffer is color coded. | |
606 | It has different colors for to show that: (a) the command is still | |
607 | running, (b) successful completion, (c) error. | |
608 | ||
609 | *** compilation-auto-jump-to-first-error tells `compile' to jump to | |
813fb3fe SM |
610 | the first error encountered during compilations. |
611 | ||
0b22a5e1 DN |
612 | *** The `cc' alias for C++ files in `grep-file-aliases' has been |
613 | improved. `hh' can be used to match C++ header files and `cchh' both | |
614 | C++ sources and headers. | |
615 | ||
09e18d03 | 616 | ** Custom |
b68769f2 | 617 | +++ |
09e18d03 | 618 | *** defcustom accepts new keyword arguments, `:safe' and `:risky', which |
b68769f2 GM |
619 | set a variable's `safe-local-variable' and `risky-local-variable' property. |
620 | ||
09e18d03 | 621 | ** Diff mode |
38b627ce | 622 | |
09e18d03 CY |
623 | *** diff-refine-hunk highlights word-level details of changes in a diff hunk. |
624 | It's used automatically as you move through hunks, see | |
7381be9d | 625 | diff-auto-refine-mode. It is bound to `C-c C-b'. |
b58a65fa | 626 | |
09e18d03 CY |
627 | *** diff-add-change-log-entries-other-window iterates through the diff |
628 | buffer and tries to create ChangeLog entries for each change. | |
629 | It is bound to `C-x 4 A'. | |
f3ff0fe9 | 630 | |
71554a21 JL |
631 | ** Dired |
632 | ||
633 | *** In Dired, C-x C-q now runs the command wdired-change-to-wdired-mode, | |
634 | and C-x C-q in wdired-mode exits it with asking a question about | |
635 | saving changes. | |
636 | ||
d1949cd5 JL |
637 | *** `&' runs the command `dired-do-async-shell-command' that executes |
638 | the command asynchronously without the need to manually add ampersand | |
639 | to the end of the command. Its output appears in the buffer `*Async Shell | |
640 | Command*'. | |
641 | ||
6d9f0d00 JL |
642 | *** `M-s f C-s' and `M-s f M-C-s' run Isearch that matches only at file names. |
643 | When a new user option `dired-isearch-filenames' is non-nil, then even | |
644 | ordinary Isearch started with `C-s' and `C-M-s' matches only at file names | |
645 | in the Dired buffer. | |
646 | ||
cc3236e1 JL |
647 | *** `M-s a C-s' and `M-s a M-C-s' run multi-file Isearch on the marked files. |
648 | They visit the first marked file in the sequence and display the usual Isearch | |
649 | prompt for a string or a regexp where all Isearch commands are available. | |
650 | ||
71554a21 JL |
651 | *** `Q' in Dired provides two new keys for multi-file replacement. |
652 | The upper case key `Y' replaces all remaining matches in all remaining files | |
653 | with no more questions. The upper case key `N' stops doing replacements | |
654 | in the current file and skips to the next file. These multi-file keys | |
655 | are available for all commands that use `tags-query-replace' | |
656 | including `dired-do-query-replace-regexp', `vc-dir-query-replace-regexp', | |
657 | `reftex-query-replace-document'. | |
658 | ||
09e18d03 CY |
659 | ** Fortran |
660 | *** The variable `fortran-line-length' can change the fixed-form line-length. | |
117d3cc5 | 661 | |
09e18d03 CY |
662 | *** In Fortran mode, M-; is now bound to the standard comment-dwim, |
663 | rather than fortran-indent-comment. | |
76be286d | 664 | |
09e18d03 CY |
665 | +++ |
666 | *** (The increasingly misnamed) F90 mode supports Fortran 2003 syntax. | |
b592c357 | 667 | |
09e18d03 | 668 | ** Gnus |
6653c6b7 | 669 | |
09e18d03 CY |
670 | *** The Gnus package has been updated |
671 | There are many news features, bug fixes and improvements; see the file | |
672 | GNUS-NEWS or the node "No Gnus" in the Gnus manual for details. | |
db86064f | 673 | |
09e18d03 CY |
674 | *** In Emacs 23, Gnus uses Emacs' new internal coding system `utf-8-emacs' for |
675 | saving articles drafts and ~/.newsrc.eld. These file may not be read | |
676 | correctly in Emacs 22 and below. If you want to Gnus across different Emacs | |
677 | versions, you may set `mm-auto-save-coding-system' to `emacs-mule'. | |
15947a44 | 678 | |
09e18d03 CY |
679 | ** Help mode |
680 | *** New macro `with-help-window' should set up help windows better | |
681 | than `with-output-to-temp-buffer' with `print-help-return-message'. | |
682 | *** New option `help-window-select' permits to customize whether help | |
683 | window shall be automatically selected when invoking help. | |
684 | *** New variable `help-window-point-marker' permits to specify new | |
685 | position of point in help window (for example in `view-lossage'). | |
15947a44 | 686 | |
09e18d03 | 687 | ** Isearch |
15947a44 | 688 | |
4f75e082 JL |
689 | *** New command `isearch-forward-word' bound globally to `M-s w' starts |
690 | incremental word search. New command `isearch-toggle-word' bound to the | |
691 | same key `M-s w' in Isearch mode toggles word searching on or off | |
692 | while Isearch is active. | |
693 | ||
694 | *** New command `isearch-highlight-regexp' bound to `M-s h r' in Isearch | |
695 | mode runs `highlight-regexp' (`hi-lock-face-buffer') with the current | |
696 | search string as its regexp argument. The same key `M-s h r' and | |
697 | other keys on the `M-s h' prefix are bound globally to the command | |
698 | `highlight-regexp' and other hi-lock commands. | |
f45acc9d | 699 | |
4f75e082 JL |
700 | *** New command `isearch-occur' bound to `M-s o' in Isearch mode |
701 | runs `occur' with the current search string. The same key `M-s o' | |
702 | is bound globally to the command `occur'. | |
15947a44 | 703 | |
4f75e082 JL |
704 | *** Isearch can now search through multiple ChangeLog files. |
705 | When running Isearch in a ChangeLog file, if the search fails, | |
09e18d03 CY |
706 | then another C-s tries searching the previous ChangeLog, |
707 | if there is one (e.g. go from ChangeLog to ChangeLog.12). | |
babc4609 | 708 | This is enabled if multi-isearch-search is non-nil. |
93a142e1 | 709 | |
babc4609 | 710 | *** Two new commands to start Isearch on a list of marked buffers |
cc3236e1 JL |
711 | for buff-menu.el and ibuffer.el are bound to the keys `M-s a C-s' and |
712 | `M-s a M-C-s'. | |
15947a44 | 713 | |
4f75e082 | 714 | *** The part of an Isearch that failed to match is highlighted in `isearch-fail' |
09e18d03 | 715 | face. |
5d503af9 | 716 | |
4f75e082 JL |
717 | *** `C-h C-h' in Isearch mode displays isearch-specific Help screen, |
718 | `C-h b' displays all Isearch key bindings, `C-h k' displays the full | |
719 | documentation of the given Isearch key sequence, `C-h m' displays | |
720 | documentation of Isearch mode. All the rest Help commands exit Isearch mode | |
09e18d03 | 721 | and execute their global definitions. |
332de56f | 722 | |
09e18d03 CY |
723 | *** When started in the minibuffer, Isearch searches in the minibuffer |
724 | history. See `Minibuffer changes', above. | |
2793c9bb | 725 | |
09e18d03 CY |
726 | ** Python |
727 | *** The file etc/emacs.py now supports both Python 2 and 3, meaning | |
728 | that either version can be used as inferior Python by python.el. | |
c5578d5f | 729 | |
09e18d03 CY |
730 | *** Python mode now has `pdbtrack' functionality. When using pdb to |
731 | debug a Python program, pdbtrack notices the pdb prompt and displays | |
732 | the source file and line that the program is stopped at, much the same | |
733 | way as gud-mode does for debugging C programs with gdb. | |
2793c9bb | 734 | |
09e18d03 | 735 | ** T-mouse Mode |
2793c9bb | 736 | |
09e18d03 CY |
737 | *** If the gpm mouse server is running and t-mouse-mode is enabled, |
738 | Emacs uses a Unix socket in a GNU/Linux console to talk to server, | |
739 | rather than faking events using the client program mev. This C level | |
740 | approach provides mouse highlighting and help echoing in the | |
741 | minibuffer. | |
2793c9bb | 742 | |
cc213f24 MA |
743 | +++ |
744 | ** Tramp | |
745 | ||
746 | *** New connection methods. | |
747 | The new methods "plinkx", "plink2", "psftp", "sftp" and "fish" have | |
748 | been introduced. There are also new so-called gateway methods | |
749 | "tunnel" and "socks". | |
750 | ||
751 | *** Multihop syntax has been removed. | |
752 | The pseudo-method "multi" has been removed. Instead of, multi hops | |
753 | can be specified by the new variable `tramp-default-proxies-alist'. | |
754 | ||
755 | *** More default settings. | |
756 | Default values can be set via the variables `tramp-default-user', | |
757 | `tramp-default-user-alist' and `tramp-default-host'. | |
758 | ||
759 | *** Connection information is cached. | |
760 | In order to reduce connection setup, information about used | |
761 | connections are kept persistent in a file. The name of this file is | |
762 | defined in the variable `tramp-persistency-file-name'. | |
763 | ||
764 | *** Control of remote processes. | |
765 | Running processes on a remote host can be controlled by settings in | |
766 | `tramp-remote-path' and `tramp-remote-process-environment'. | |
767 | ||
768 | *** Success of remote copy is checked. | |
769 | When the variable `file-precious-flag' is set, the success of a remote | |
770 | file copy is checked via the file's checksum. | |
771 | ||
7cba69f2 MA |
772 | *** Passwords can be read from an authentification file. |
773 | Tramp uses the package `auth-source' to read passwords from a file, if | |
774 | necessary. | |
775 | ||
289aee1c | 776 | ** VC and related modes |
95d8772f | 777 | |
09e18d03 CY |
778 | *** VC now supports applying VC operations to a set of files at a time. |
779 | This enables VC to work much more effectively with changeset-oriented | |
780 | version-control systems such as Subversion, GNU Arch, Mercurial, Git | |
781 | and Bzr. VC will now pass a multiple-file commit to these systems as | |
782 | a single changeset. | |
d15f7b68 | 783 | |
09e18d03 | 784 | *** vc-dir is a new command that displays file names and their VC |
289aee1c DN |
785 | status. It allows to apply various VC operations to a file, a |
786 | directory or a set of files/directories. | |
c3f01f42 | 787 | |
09e18d03 | 788 | *** Clicking on the VC mode-line entry now pops the VC menu. |
4c24d241 | 789 | |
09e18d03 | 790 | *** The VC mode-line entry now has a tooltip that explains the VC file status. |
d15f7b68 | 791 | |
09e18d03 CY |
792 | *** In VC Annotate mode, for VC systems that support changesets, you can |
793 | see the diff for the whole changeset (not only for the current file) | |
e86fa02b | 794 | by typing the D key. |
a9f480e8 | 795 | |
e86fa02b | 796 | *** In VC Annotate mode, you can type v to toggle the annotation visibility. |
2fb6c6be | 797 | |
09e18d03 CY |
798 | *** In VC Annotate mode, you can type f to show the file revision on |
799 | the current line. | |
d5d381e2 | 800 | |
e86fa02b DN |
801 | *** In VC Annotate mode, for VC systems that support changesets, you |
802 | can see the diff for the whole changeset (not only for the current | |
803 | file) by typing the D key or using the "Show changeset diff of | |
804 | revision at line" menu entry. | |
805 | ||
09e18d03 CY |
806 | *** Asynchronous VC commands display [Waiting...] in the mode-line |
807 | of the corresponding buffer as long as the asynchronous process is | |
808 | active. | |
cf944fa4 | 809 | |
09e18d03 CY |
810 | *** Log entries can be modified using the key "e" in log-view. |
811 | For now only CVS, RCS, SCCS and SVN support this functionality. | |
812 | This is done by the `modify-change-comment' backend function. | |
143cecdb | 813 | |
09e18d03 CY |
814 | *** In log-view-mode, for VC systems that support changesets, you can |
815 | see the diff for the whole changeset (not only for the current file) | |
816 | by typing the D key or using the "Changeset Diff" menu entry. | |
cf944fa4 | 817 | |
289aee1c DN |
818 | *** In Log Edit mode, C-c C-d now shows the diff for the files involved. |
819 | ||
820 | *** vc-git supports the "git grep" command. | |
821 | ||
09e18d03 CY |
822 | *** VC Support for Meta-CVS has been removed for lack of maintainer able |
823 | to update it to the new VC. | |
cf944fa4 | 824 | |
d15f7b68 GM |
825 | ** Miscellaneous |
826 | ||
827 | *** comint-mode uses `start-file-process' now (see Lisp Changes). | |
cc213f24 MA |
828 | If `default-directory' is a remote file name, subprocesses are started |
829 | on the corresponding remote system. | |
830 | ||
09e18d03 CY |
831 | *** Eldoc highlights the function argument under point |
832 | with the face `eldoc-highlight-function-argument'. | |
4596901f | 833 | |
09e18d03 | 834 | *** In Etags, the --members option is now the default. |
fffa137c | 835 | Use --no-members if you want the old default behavior of not tagging |
09e18d03 | 836 | struct members in C, members variables in C++ and variables in PHP. |
1752e205 | 837 | |
09e18d03 CY |
838 | *** The `gdb' command only works with the graphical interface now. |
839 | Use `gud-gdb' if you want the (old) text command mode. | |
840 | ||
841 | *** goto-address.el provides two new minor modes, goto-address-mode and | |
842 | goto-address-prog-mode, which buttonize URLS and email addresses. | |
843 | ||
844 | *** The new command `eshell/info' runs info in an eshell buffer. | |
3cf86f00 | 845 | |
4d1e89e3 GM |
846 | *** The new variable `ffap-rfc-directories' specifies a list of local |
847 | directories in which `ffap-rfc' will first search for RFCs. | |
848 | ||
09e18d03 CY |
849 | *** hide-ifdef-mode allows shadowing ifdef-blocks instead of hiding them. |
850 | See option `hide-ifdef-shadow' and function `hide-ifdef-toggle-shadowing'. | |
851 | ||
852 | *** `icomplete-prospects-height' now supercedes `icomplete-prospects-length'. | |
853 | ||
854 | *** Info displays breadcrumbs in the header of the page. | |
855 | See Info-breadcrumbs-depth to control it. | |
856 | ||
d2c98acc | 857 | *** net-utils has an `iwconfig' command, similar to the existing `ifconfig'. |
b7bfcc8a | 858 | It is used to configure wireless interfaces. |
d2c98acc | 859 | |
09e18d03 CY |
860 | *** The pcmpl-unix package supports hostname completion for ssh and scp. |
861 | ||
862 | *** sgml-electric-tag-pair-mode lets you simultaneously edit matched tag pairs. | |
863 | ||
864 | *** smerge-refine highlights word-level details of changes in conflict. | |
7381be9d TTN |
865 | It's used automatically as you move through conflicts, see |
866 | smerge-auto-refine-mode. | |
09e18d03 CY |
867 | |
868 | *** talk.el has been extended for multiple tty support. | |
869 | ||
870 | *** A new command `display-time-world' has been added to the Time | |
871 | package. It creates a buffer with an updating time display using | |
872 | several time zones. | |
873 | ||
874 | *** The appearance of superscript and subscript in TeX is more customizable. | |
875 | See the documentation of the variables: tex-fontify-script, | |
876 | tex-font-script-display, tex-suscript-height-ratio, and | |
877 | tex-suscript-height-minimum. | |
878 | ||
879 | *** view-remove-frame-by-deleting is now by default t | |
880 | since users found iconification of view-mode frames distracting. | |
881 | ||
882 | *** WoMan tries to add locale-specific manual page directories to the | |
883 | search path. This can be disabled by setting `woman-locale' to nil. | |
884 | ||
0bfd685e GM |
885 | \f |
886 | * Changes in Emacs 23.1 on non-free operating systems | |
8ab314f9 | 887 | |
203553fd JPW |
888 | ** Case is now considered significant in completion on MS-Windows. |
889 | The default value of `completion-ignore-case' is now nil on | |
890 | MS-Windows, the same as it is for other operating systems. The | |
891 | variable doesn't apply to reading a file name -- in that case Emacs | |
892 | heeds `read-file-name-completion-ignore-case' instead. | |
893 | ||
672f99b6 JR |
894 | --- |
895 | ** IPv6 is supported on MS-Windows. | |
896 | Emacs now supports IPv6 on Windows XP and later, and earlier versions | |
2660a9da | 897 | of Windows with third party IPv6 stacks installed. In Emacs 22, IPv6 was |
672f99b6 JR |
898 | supported on other platforms, but not on Windows due to using the winsock |
899 | 1.1 header file, even though Emacs was linking to the winsock 2 library. | |
900 | ||
0d22595d | 901 | --- |
6e344060 JR |
902 | ** Busy cursor (hourglass) now displays on MS-Windows. |
903 | When Emacs is busy, an hourglass mouse cursor is displayed on Windows. | |
2660a9da JR |
904 | In Emacs 22 only X supported the busy cursor. |
905 | ||
906 | --- | |
907 | ** Battery status is available on MS-Windows | |
908 | Emacs can now display the battery status in the mode-line when enabled with | |
909 | display-battery-mode or from the Options menu. More verbose battery | |
910 | information is also available with the command `battery'. In Emacs 22 | |
911 | battery status was supported only on GNU/Linux and Mac. | |
6e344060 | 912 | |
3280c5c5 JR |
913 | ** More keys available on MS-Windows. |
914 | Keys normally associated with IMEs, and some exotic keys not normally found | |
915 | on standard keyboards have been given names so they can be bound to functions | |
916 | inside Emacs. If there are keys on your keyboard that have not been exposed | |
917 | to Emacs in the past, try C-h k to see if they are available now. | |
918 | ||
919 | Emacs can now bind functions to the extra buttons for media player and | |
920 | browser control present on some keyboards. These buttons are disabled | |
921 | by default, since enabling them prevents their system-wide use when | |
922 | Emacs has focus. To enable them, set the variable | |
0caa490b | 923 | w32-pass-multimedia-buttons to nil. See the doc string of that variable |
3280c5c5 | 924 | for the list of extra keys that are available. |
2660a9da | 925 | |
0bfd685e GM |
926 | \f |
927 | * Incompatible Lisp Changes in Emacs 23.1 | |
8ec65cd7 | 928 | |
fd9440c5 | 929 | ** Variables cannot be both buffer-local and frame-local any more. |
a9b08254 | 930 | |
fc944cd4 | 931 | ** `functionp' returns nil for special forms. |
65f81a0b | 932 | I.e., it only returns t for objects that can be passed to `funcall'. |
fc944cd4 | 933 | |
d82c3d44 GM |
934 | ** The behavior of map-char-table has changed. It may call the |
935 | specified function with a cons (FROM . TO) as a key if characters in | |
936 | that range have the same value. | |
937 | ||
b350bdf2 CY |
938 | ** Process changes |
939 | +++ | |
940 | *** The function `dired-call-process' has been removed. | |
03605a28 | 941 | +++ |
b350bdf2 CY |
942 | *** The multibyteness of process filters is now determined by the |
943 | coding-system used for decoding. The functions | |
944 | `process-filter-multibyte-p' and `set-process-filter-multibyte' are | |
945 | obsolete. | |
03605a28 | 946 | |
777ea444 | 947 | ** The variable `byte-compile-warnings' can now be a list starting with `not', |
0caa490b | 948 | meaning to disable the specified warnings. The meaning of this list |
777ea444 | 949 | may therefore be the reverse of what you expect (of course, this is |
0caa490b | 950 | only an issue if you make use of the new `not' syntax). Rather than |
777ea444 GM |
951 | checking/manipulating elements directly, use the new functions |
952 | `byte-compile-warning-enabled-p', `byte-compile-disable-warning', and | |
953 | `byte-compile-enable-warning.' | |
954 | ||
69df9d6d GM |
955 | ** `mode-name' is no longer guaranteed to be a string. |
956 | Use `(format-mode-line mode-name)' to ensure a string value. | |
957 | ||
b350bdf2 CY |
958 | ** Internationalization changes |
959 | ||
960 | *** The value of the function `charset-id' is now always 0. | |
961 | ||
962 | *** The functions `register-char-codings' and `coding-system-spec' | |
963 | have been removed. | |
964 | ||
965 | *** The cpXXX coding systems are now supported automatically. | |
966 | The functions cp-...-codepage, which you had to use in Emacs 22 to | |
967 | enable support for these coding systems, have been deleted. | |
968 | ||
969 | *** The following features have been removed. They were used for | |
85a1f98d GM |
970 | displaying various scripts with specific fonts, and are no longer |
971 | needed now that OpenType font support is available: | |
972 | ||
b350bdf2 | 973 | **** `devanagari' and `devan-util', and all associated devanagari-* and |
85a1f98d GM |
974 | dev-* functions and variables (formerly used for Devanagari script). |
975 | ||
b350bdf2 | 976 | **** `kannada' and `knd-util', and all associated kannada-* and knd-* |
85a1f98d GM |
977 | functions and variables (formerly used for Kannada script). |
978 | ||
b350bdf2 | 979 | **** `malayalam' and `mlm-util', and all associated malayalam-* and |
85a1f98d GM |
980 | mlm-* functions and variables (formerly used for Malayalam script). |
981 | ||
b350bdf2 | 982 | **** `tamil' and `tml-util, and all associated tamil-* and tml-* |
85a1f98d | 983 | functions and variables (formerly used for Tamil script). |
6a6b4d7d | 984 | |
0bfd685e GM |
985 | \f |
986 | * Lisp Changes in Emacs 23.1 | |
8ab314f9 | 987 | |
b350bdf2 CY |
988 | +++ |
989 | ** New variable `user-emacs-directory'. | |
990 | Use this instead of "~/.emacs.d". | |
43f8b275 | 991 | |
b350bdf2 CY |
992 | ** If a local hook function has a non-nil `permanent-local-hook' |
993 | property, `kill-all-local-variables' does not remove it from the local | |
994 | value of the hook variable; it remains even if you change major modes. | |
09e18d03 | 995 | |
b350bdf2 CY |
996 | ** `frame-inherited-parameters' lets new frames inherit parameters from |
997 | the selected frame. | |
09e18d03 | 998 | |
b350bdf2 CY |
999 | ** New keymap `input-decode-map' overrides like key-translation-map, but |
1000 | applies before function-key-map. Also it is terminal-local contrary to | |
1001 | key-translation-map. Terminal-specific key-sequences are generally added to | |
1002 | this map rather than to function-key-map now. | |
09e18d03 | 1003 | |
b350bdf2 | 1004 | ** `ignore-errors' is now a standard macro (does not require the CL package). |
09e18d03 | 1005 | |
b350bdf2 CY |
1006 | ** `interprogram-paste-function' can now return one string or a list |
1007 | of strings. In the latter case, Emacs puts the second and following | |
1008 | strings on the kill ring. | |
09e18d03 | 1009 | |
b350bdf2 CY |
1010 | +++ |
1011 | ** In `condition-case', a handler can specify "let the debugger run first". | |
1012 | You do this by writing `debug' in the list of conditions to be handled, | |
1013 | like this: | |
09e18d03 | 1014 | |
b350bdf2 CY |
1015 | (condition-case nil |
1016 | (foo bar) | |
1017 | ((debug error) nil)) | |
09e18d03 | 1018 | |
b350bdf2 | 1019 | ** clone-indirect-buffer now runs the clone-indirect-buffer-hook. |
09e18d03 | 1020 | |
b350bdf2 CY |
1021 | ** `beginning-of-defun-function' now takes one argument, the count |
1022 | given to `beginning-of-defun'. | |
09e18d03 | 1023 | |
b350bdf2 CY |
1024 | +++ |
1025 | ** `file-remote-p' has new optional parameters IDENTIFICATION and CONNECTED. | |
1026 | IDENTIFICATION specifies which part of the remote identifier has to be | |
1027 | returned. With CONNECTED passed non-nil, it is checked whether a | |
1028 | remote connection has been established already. | |
09e18d03 | 1029 | |
b350bdf2 CY |
1030 | ** The new macro `declare-function' suppresses compiler warnings about |
1031 | undefined functions. | |
a1562258 | 1032 | |
b350bdf2 | 1033 | ** Changes to interactive function handling |
8ba31f36 | 1034 | |
b350bdf2 CY |
1035 | *** The new interactive spec code ^ says to first call |
1036 | handle-shift-selection if shift-select-mode is non-nil, before reading | |
1037 | the command arguments. This is used for shift-selection (see above). | |
e2947429 | 1038 | |
b350bdf2 CY |
1039 | *** Built-in functions can now have an interactive specification that |
1040 | is not a prompt string. If the `intspec' parameter of a `DEFUN' | |
1041 | starts with a `(', the string is evaluated as a Lisp form. | |
e2947429 | 1042 | |
b350bdf2 CY |
1043 | *** The interactive-form of a function can be added post-facto via the |
1044 | `interactive-form' symbol property. Mostly useful to add complex | |
1045 | interactive forms to subroutines. | |
d87be1df | 1046 | |
b350bdf2 | 1047 | ** Region changes |
3ae459e5 | 1048 | |
b350bdf2 CY |
1049 | *** Commands should use `use-region-p' to test whether there is |
1050 | an active region that they should operate on. | |
3ae459e5 | 1051 | |
b350bdf2 CY |
1052 | *** `region-active-p' returns non-nil when Transient Mark mode is |
1053 | enabled and there is an active region. This is NOT the best function | |
1054 | to use to test whether a command should operate on the region instead | |
1055 | of the usual behavior -- for that, use `use-region-p'. | |
58555d81 | 1056 | |
b350bdf2 CY |
1057 | *** If a command sets `transient-mark-mode' to (only . OLDVAL), that |
1058 | means to activate transient-mark-mode temporarily, until the next | |
1059 | unshifted point motion command or mark deactivation. Afterwards, | |
1060 | reset transient-mark-mode to the value OLDVAL. The values `only' and | |
1061 | `identity', introduced in Emacs 22, are now deprecated. | |
e5c4079c | 1062 | |
b350bdf2 | 1063 | ** Emacs session information |
13cda5f9 | 1064 | |
b350bdf2 CY |
1065 | *** The new variables `before-init-time' and `after-init-time' record the |
1066 | value of `current-time' before and after Emacs loads the init files. | |
a2bc5bdd | 1067 | |
b350bdf2 | 1068 | *** The new function `emacs-uptime' returns the uptime of an Emacs instance. |
d82c3d44 | 1069 | |
b350bdf2 CY |
1070 | *** The new function `emacs-init-time' returns the duration of the |
1071 | Emacs initialization. | |
50bfa18a | 1072 | |
b350bdf2 | 1073 | ** Changes affecting display-buffer |
39d0bf74 | 1074 | |
b350bdf2 CY |
1075 | *** New value nil for split-height-threshold inhibits vertical splitting |
1076 | unless there's no other window. | |
59b5d020 | 1077 | |
b350bdf2 | 1078 | *** New option split-width-threshold controls horizontal splitting. |
426e6ba0 | 1079 | |
b350bdf2 | 1080 | *** A window can be split horizontally even when it's not full-width. |
426e6ba0 | 1081 | |
b350bdf2 CY |
1082 | *** New option split-window-preferred-function can be set to a function |
1083 | to override the default splitting mechanism of display-buffer. | |
2d105adf | 1084 | |
b350bdf2 | 1085 | ** Minibuffer and completion changes |
b9694062 | 1086 | +++ |
b350bdf2 | 1087 | *** A list of default values can be specified for the DEFAULT argument of |
b9694062 JL |
1088 | functions `read-from-minibuffer', `read-string', `read-command', |
1089 | `read-variable', `read-buffer', `completing-read'. Elements of this list | |
1090 | are available for inserting into the minibuffer by typing `M-n'. | |
1091 | For empty input these functions return the first element of this list. | |
1092 | ||
90993beb | 1093 | *** New function `read-regexp' uses the regexp history and some useful |
4f75e082 | 1094 | regexp defaults (string at point, last Isearch/replacement regexp/string) |
90993beb JL |
1095 | via M-n when reading a regexp in the minibuffer. |
1096 | ||
b350bdf2 CY |
1097 | *** minibuffer-local-must-match-filename-map is now named |
1098 | minibuffer-local-filename-must-match-map. | |
66dc1ca2 | 1099 | |
b350bdf2 CY |
1100 | *** `all-completions' may now return the base size in the last cdr. |
1101 | Since this means the returned list is not properly nil-terminated, this | |
1102 | is an incompatible change and is thus enabled by the new variable | |
1103 | completion-all-completions-with-base-size. | |
66dc1ca2 | 1104 | |
b350bdf2 CY |
1105 | *** The `require-match' argument to `completing-read' accepts a new value |
1106 | `confirm-only'. | |
d03b9b31 | 1107 | |
b350bdf2 CY |
1108 | ** Search and replacement changes |
1109 | +++ | |
1110 | *** The regexp form \(?<num>:<regexp>\) specifies the group number explicitly. | |
1111 | +++ | |
1112 | *** New function `match-substitute-replacement' returns the result of | |
1113 | `replace-match' without actually using it in the buffer. | |
c60d543d | 1114 | |
b350bdf2 CY |
1115 | *** The new variable `replace-search-function' determines the function |
1116 | to use for searching in query-replace and replace-string. | |
3ae459e5 | 1117 | |
b350bdf2 CY |
1118 | *** The new variable `replace-re-search-function' determines the |
1119 | function to use for searching in `query-replace-regexp', | |
1120 | `replace-regexp', `query-replace-regexp-eval', and | |
1121 | `map-query-replace-regexp'. | |
4f4a84ec | 1122 | |
4f75e082 JL |
1123 | *** New keymap `search-map' bound to `M-s' provides global bindings |
1124 | for search related commands. | |
1125 | ||
1126 | *** New keymap `multi-query-replace-map' contains additonal keys bound | |
71554a21 JL |
1127 | to `automatic-all' and `exit-current' for multi-buffer interactive replacement. |
1128 | ||
b350bdf2 CY |
1129 | *** The variable `inhibit-changing-match-data', if non-nil, prevents |
1130 | the search and match primitives from changing the match data. | |
967b2682 | 1131 | |
b350bdf2 | 1132 | ** File handling changes |
8bf5c8a6 | 1133 | |
b350bdf2 CY |
1134 | *** set-file-modes is now interactive and can take the mode value in |
1135 | symbolic notation thanks to auxiliary functions. | |
d9774611 | 1136 | |
b350bdf2 CY |
1137 | *** If you set find-file-confirm-nonexistent-file to t, then C-x C-f |
1138 | requires confirmation before opening a non-existent file. | |
1139 | ||
1140 | ** Process changes | |
1141 | +++ | |
1142 | *** The new function `start-file-process' is similar to `start-process', | |
1143 | but obeys file handlers. The file handler is chosen based on | |
1144 | `default-directory'. The functions `start-file-process-shell-command' | |
1145 | and `process-file-shell-command' are also new; they call internally | |
1146 | `start-file-process' and `process-file', respectively. | |
1147 | ||
1148 | *** The new function `process-lines' executes an external program and | |
1149 | returns its output as a list of lines. | |
63571b5a | 1150 | |
d82c3d44 GM |
1151 | ** Character code, representation, and charset changes. |
1152 | ||
0caa490b | 1153 | The character code space is now 0x0..0x3FFFFF with no gap. |
d82c3d44 GM |
1154 | Characters of code 0x0..0x10FFFF are Unicode characters of the same code points. |
1155 | Characters of code 0x3FFF80..0x3FFFFF are raw 8-bit bytes. | |
1156 | ||
0caa490b | 1157 | Generic characters no longer exist. |
d82c3d44 | 1158 | |
b350bdf2 CY |
1159 | In buffers and strings, characters are represented by UTF-8 byte |
1160 | sequences in a multibyte buffer/string. | |
d82c3d44 | 1161 | |
b350bdf2 CY |
1162 | The concept of a charset has changed. A single character may belong |
1163 | to multiple charsets (e.g. a-grave, U+00E0, belongs to charsets | |
1164 | unicode, iso-8859-1, iso-8859-3, etc). | |
d82c3d44 GM |
1165 | |
1166 | *** The functions `encode-char' and `decode-char' now accept any character sets. | |
1167 | ||
1168 | *** The function `define-charset' now accepts a completely different | |
1169 | form of arguments (old-style arguments still work). | |
1170 | ||
d82c3d44 GM |
1171 | *** The value of the function `char-charset' depends on the current |
1172 | priorities of charsets. | |
1173 | ||
d82c3d44 GM |
1174 | *** The function get-char-code-property now accepts many Unicode base |
1175 | character properties. They are `name', `general-category', | |
1176 | `canonical-combining-class', `bidi-class', `decomposition', | |
1177 | `decimal-digit-value', `digit-value', `numeric-value', `mirrored', | |
1178 | `old-name', `iso-10646-comment', `uppercase', `lowercase', and | |
1179 | `titlecase'. | |
1180 | ||
b350bdf2 CY |
1181 | *** The functions `modify-syntax-entry' and `modify-category-entry' now |
1182 | accept a cons of characters as the first argument, and modify all | |
1183 | entries in that range of characters. | |
d82c3d44 | 1184 | |
b350bdf2 CY |
1185 | +++ |
1186 | *** `translation-table-for-input' is now obsolete. | |
d82c3d44 | 1187 | |
b350bdf2 | 1188 | *** New functions: |
d82c3d44 | 1189 | |
b350bdf2 CY |
1190 | **** `characterp' returns t if and only if the argument is a character. |
1191 | This replaces `char-valid-p', which is now obsolete. | |
d82c3d44 | 1192 | |
b350bdf2 | 1193 | **** `max-char' returns the maximum character code (currently #x3FFFFF). |
d82c3d44 | 1194 | |
b350bdf2 CY |
1195 | **** `define-charset-alias' defines an alias of a charset. |
1196 | ||
1197 | **** `set-charset-priority' sets priorities of charsets. | |
1198 | ||
1199 | **** `charset-priority-list' returns a prioritized list of charsets. | |
1200 | ||
1201 | **** `unibyte-string' makes a unibyte string from bytes. | |
1202 | ||
1203 | **** `define-char-code-property' defines a character code property. | |
1204 | ||
1205 | **** `char-code-property-description' returns the description string of | |
1206 | a character code property. | |
1207 | ||
1208 | *** New variables: | |
1209 | ||
7082ceb2 CY |
1210 | **** file-local-variables-alist stores an alist of file-local |
1211 | variables defined in the current buffer. | |
1212 | ||
b350bdf2 CY |
1213 | **** `find-word-boundary-function-table' is a char-table of functions to |
1214 | search for a word boundary. | |
1215 | ||
1216 | **** `char-script-table' is a char-table of script names. | |
1217 | ||
1218 | **** `char-width-table' is a char-table of character widths. | |
1219 | ||
1220 | **** `print-charset-text-property' controls how to handle `charset' text | |
1221 | property on printing a string. | |
1222 | ||
1223 | **** `printable-chars' is a char-table of printable characters. | |
d82c3d44 | 1224 | |
505d8756 | 1225 | ** Code conversion changes |
d82c3d44 GM |
1226 | |
1227 | *** The new function `define-coding-system' should be used to define a | |
1228 | coding system instead of `make-coding-system' (which is now obsolete). | |
1229 | ||
1230 | *** The functions `encode-coding-region' and `decode-coding-region' | |
1231 | have an optional 4th argument to specify where the result of | |
1232 | conversion should go. | |
1233 | ||
1234 | *** The functions `encode-coding-string' and `decode-coding-string' | |
1235 | have an optional 4th argument specifying a buffer to store the result | |
1236 | of conversion. | |
1237 | ||
b350bdf2 | 1238 | *** The functions `set-coding-priority' and `make-coding-system' are obsolete. |
d82c3d44 | 1239 | |
b350bdf2 | 1240 | *** New functions: |
d82c3d44 | 1241 | |
b350bdf2 CY |
1242 | **** `with-coding-priority' executes Lisp code using the specified |
1243 | coding system priority order. | |
d82c3d44 | 1244 | |
b350bdf2 CY |
1245 | **** `check-coding-systems-region' checks if the text in the region is |
1246 | encodable by the specified coding systems. | |
d82c3d44 | 1247 | |
b350bdf2 | 1248 | **** `coding-system-aliases' returns a list of aliases of a coding system. |
d82c3d44 | 1249 | |
b350bdf2 CY |
1250 | **** `coding-system-charset-list' returns a list of charsets supported |
1251 | by a coding system. | |
d82c3d44 | 1252 | |
b350bdf2 CY |
1253 | **** `coding-system-priority-list' returns a list of coding systems |
1254 | ordered by their priorities. | |
1255 | ||
1256 | **** `set-coding-system-priority' sets priorities of coding systems. | |
d82c3d44 GM |
1257 | |
1258 | ** There is a new input method, Robin, different from Quail. | |
0caa490b | 1259 | It has three functionalities: |
d82c3d44 GM |
1260 | i) a simple input method (converts an ASCII sequence into a string). |
1261 | ii) converts an existing buffer substring into another string | |
1262 | iii) reverse conversion (each character produced by a | |
1263 | robin rule can hold the original ASCII sequence as a char-code-property) | |
1264 | ||
1265 | *** The new function `robin-define-package' defines a Robin package. | |
1266 | ||
1267 | *** The new function `robin-modify-package' modifies an existing Robin package. | |
1268 | ||
1269 | *** The new function `robin-use-package' starts using a Robin package | |
1270 | as an input method. | |
1271 | ||
888d7d86 KH |
1272 | *** The new function `string-to-unibyte' is like `string-as-unibyte' |
1273 | but signals an error if STRING contains a non-ASCII, non-eight-bit | |
1274 | character. | |
1275 | ||
505d8756 | 1276 | ** Changes related to the new font backend |
2b7a2553 | 1277 | |
b19aa6dd GM |
1278 | Which font backends to use can be specified by the X resource "FontBackend". |
1279 | For instance, to use both X core fonts and Xft fonts: | |
2b7a2553 | 1280 | |
b19aa6dd | 1281 | Emacs.FontBackend: x,xft |
2b7a2553 | 1282 | |
b19aa6dd GM |
1283 | If this resource is not set, Emacs tries to use all font backends |
1284 | available on your graphic device. | |
d82c3d44 GM |
1285 | |
1286 | *** New frame parameter `font-backend' specifies a list of | |
1287 | font-backends supported by the frame's graphic device. On X, they are | |
1288 | currently `x' and `xft'. | |
1289 | ||
b350bdf2 CY |
1290 | *** The function `set-fontset-font' now accepts a script name as the |
1291 | second argument, and has an optional 5th argument to control how to | |
1292 | set the font. | |
d82c3d44 | 1293 | |
b350bdf2 | 1294 | *** New functions: |
d82c3d44 | 1295 | |
b350bdf2 | 1296 | **** `fontp' checks if the argument is a font-spec or font-entity. |
d82c3d44 | 1297 | |
b350bdf2 | 1298 | **** `font-spec' creates a new font-spec object. |
d54b8954 | 1299 | |
b350bdf2 | 1300 | **** `font-get' returns a font property value. |
d82c3d44 | 1301 | |
b350bdf2 | 1302 | **** `font-put' sets a font property value. |
d82c3d44 | 1303 | |
b350bdf2 | 1304 | **** `font-face-attributes' returns a plist of face attributes set by a font. |
d82c3d44 | 1305 | |
b350bdf2 | 1306 | **** `list-fonts' returns a list of font-entities matching a font spec. |
d82c3d44 | 1307 | |
b350bdf2 | 1308 | **** `font-font' returns the font-entity best matching the given font spec. |
d82c3d44 | 1309 | |
b350bdf2 | 1310 | **** `list-families' returns a list of family names of available fonts. |
d82c3d44 | 1311 | |
b350bdf2 CY |
1312 | **** `font-xlfd-name' returns an XLFD name of a given font spec, font |
1313 | entity, or font object. | |
1314 | ||
1315 | **** `clear-font-cache' clears all font caches. | |
d82c3d44 | 1316 | |
b350bdf2 | 1317 | ** Changes related to multiple-terminal (multi-tty) support |
24cdde13 | 1318 | |
b12f6e85 SM |
1319 | *** $TERM is now set to `dumb' for subprocesses. If you want to know the |
1320 | $TERM inherited by Emacs you will have to look inside initial-environment. | |
1321 | ||
6168122d SM |
1322 | *** $DISPLAY is now dynamically inherited from the frame's `display'. |
1323 | ||
b350bdf2 | 1324 | *** The `window-system' variable is now frame-local. The new |
24cdde13 | 1325 | `initial-window-system' variable contains the `window-system' value |
bbe3eb99 GM |
1326 | for the first frame. `window-system' is also now a function that |
1327 | takes a frame argument. | |
24cdde13 | 1328 | |
b350bdf2 CY |
1329 | *** The `keyboard-translate-table' variable and the terminal and |
1330 | keyboard coding systems are now terminal-local. | |
1331 | ||
24cdde13 GM |
1332 | *** You can specify a terminal device (`tty' parameter) and a terminal |
1333 | type (`tty-type' parameter) to `make-terminal-frame'. | |
1334 | ||
24cdde13 GM |
1335 | *** The function `make-frame-on-display' now works during a tty |
1336 | session, and `make-frame-on-tty' works during a graphical session. | |
1337 | ||
419f8f49 SM |
1338 | *** A new data type for terminals with functions: `get-device-terminal', |
1339 | `terminal-parameters', `terminal-parameter', `set-terminal-parameter'. | |
24cdde13 | 1340 | |
b350bdf2 CY |
1341 | *** Function key sequences are now mapped using `local-function-key-map', |
1342 | a new variable. This inherits from the global variable function-key-map, | |
1343 | which is not used directly any more. | |
92cd6a7c | 1344 | |
b350bdf2 | 1345 | *** New hooks: |
da406961 | 1346 | |
7082ceb2 CY |
1347 | **** before-hack-local-variables-hook is called after setting new |
1348 | variable file-local-variables-alist, and before actually applying the | |
1349 | file-local variables. | |
1350 | ||
b350bdf2 CY |
1351 | **** `suspend-tty-functions' and `resume-tty-functions' are called |
1352 | after a tty frame has been suspended or resumed, respectively. The | |
1353 | functions are called with the terminal id of the frame being | |
1354 | suspended/resumed as a parameter. | |
da406961 | 1355 | |
b350bdf2 CY |
1356 | **** The special hook `delete-terminal-functions' is called before |
1357 | deleting a terminal. | |
82866ad5 | 1358 | |
b350bdf2 | 1359 | *** New functions: |
24cdde13 | 1360 | |
b350bdf2 | 1361 | **** `environment' |
24cdde13 | 1362 | |
b350bdf2 | 1363 | **** `make-frame-on-tty' creates a new frame on another tty device. |
24cdde13 | 1364 | |
b350bdf2 | 1365 | **** `delete-tty' |
9f44d41a | 1366 | |
b350bdf2 | 1367 | **** `suspend-tty' |
ea2e3ef4 | 1368 | |
b350bdf2 | 1369 | **** `resume-tty'. |
8d371994 | 1370 | |
b350bdf2 | 1371 | *** `initial-environment' holds the environment inherited from Emacs's parent. |
8d371994 | 1372 | |
b350bdf2 | 1373 | ** Redisplay changes |
8d371994 | 1374 | |
b350bdf2 CY |
1375 | *** For underlined characters, the distance between the underline and |
1376 | the baseline is controlled by a new variable, `underline-minimum-offset'. | |
0a963185 | 1377 | |
b350bdf2 CY |
1378 | *** You can now pass the value of the `invisible' property to |
1379 | invisible-p to check whether it would cause the text to be invisible. | |
1380 | Convenient when checking invisibility of text with no buffer position | |
1381 | (e.g. in before/after-strings). | |
c69b0314 | 1382 | |
b350bdf2 | 1383 | *** Non-breaking space is now displayed as whitespace. |
9f44d41a | 1384 | |
b350bdf2 | 1385 | *** `clear-image-cache' can be told to flush only images of a specific file. |
9f44d41a | 1386 | |
0c8b58e9 CY |
1387 | *** `vertical-motion' can now be given a goal column. |
1388 | It now accepts a cons cell (COLS . LINES) in its first argument, which | |
1389 | says to stop, where possible, at a pixel x-position equal to COLS | |
1390 | times the default column width. | |
1391 | ||
b350bdf2 | 1392 | ** Miscellaneous new functions |
9f44d41a | 1393 | |
b350bdf2 CY |
1394 | *** `format-seconds' converts a number of seconds into a readable |
1395 | string of days, hours, etc. | |
9f44d41a | 1396 | |
b350bdf2 | 1397 | *** `apply-partially' performs a "curried" application of a function. |
abf13a8b | 1398 | |
b350bdf2 CY |
1399 | *** `read-shell-command' does what its name says, with completion. It |
1400 | uses the minibuffer-local-shell-command-map for that. | |
b2b387f9 | 1401 | |
b350bdf2 CY |
1402 | *** `buffer-swap-text' swaps text between two buffers. This can be |
1403 | useful for modes such as tar-mode, archive-mode, RMAIL. | |
967b2682 | 1404 | |
b350bdf2 CY |
1405 | *** `read-color' reads a color name using the minibuffer. |
1406 | ||
1407 | *** `face-all-attributes' returns an alist describing all the basic | |
1408 | attributes of a given face. | |
1409 | ||
1410 | *** `window-full-width-p' returns t if a window is as wide as its | |
1411 | frame. | |
1412 | ||
1413 | *** `split-string-and-unquote' does (what?) | |
1414 | ||
1415 | *** `combine-and-quote-strings' does (what?) | |
1416 | ||
1417 | *** `image-refresh' refreshes all images associated with a given image | |
1418 | specification. | |
64639e26 | 1419 | |
b350bdf2 | 1420 | *** The two new functions `looking-at-p' and `string-match-p' can do |
45595a4f RS |
1421 | the same matching as `looking-at' and `string-match' without changing |
1422 | the match data. | |
89835619 | 1423 | |
81efacf9 CY |
1424 | *** The two new functions `make-serial-process' and |
1425 | `serial-process-configure' provide a Lisp interface to the new serial | |
1426 | port support (see Emacs changes, above). | |
1427 | ||
b350bdf2 CY |
1428 | ** Miscellaneous new variables |
1429 | ||
1430 | *** `this-command-keys-shift-translated' is non-nil if the key | |
1431 | sequence invoking the current command was found by shift-translation. | |
1432 | ||
1433 | *** `window-point-insertion-type' determines the insertion-type of the | |
1434 | marker used for window-point. | |
1435 | ||
1436 | *** bookmark provides `bookmark-make-record-function' so special major | |
1437 | modes like Info can teach bookmark.el how to save and restore the | |
1438 | relevant data. | |
1439 | ||
1440 | *** `next-error-recenter' specifies how next-error should recenter the | |
1441 | visited source file. Its value can be a number (for example, 0 for | |
1442 | top line, -1 for bottom line), or nil for no recentering. | |
1443 | ||
1444 | *** `fill-forward-paragraph-function' specifies which function the | |
1445 | filling code should use to find paragraph boundaries. | |
1446 | ||
1447 | *** `custom-note-var-changed' tells Custom to treat the change in a | |
1448 | certain variable as having been made within Custom. | |
1449 | ||
9bae34bf | 1450 | \f |
0bfd685e | 1451 | * New Packages for Lisp Programming in Emacs 23.1 |
efeb796b | 1452 | |
b350bdf2 CY |
1453 | ** The new package avl-tree.el deals with the AVL tree data structure. |
1454 | ||
1455 | ** The new package check-declare.el verifies the accuracy of | |
1456 | declare-function macros (see Lisp Changes, above). | |
d445b3f8 | 1457 | |
20202f5e | 1458 | ** find-cmd.el can build `find' commands using lisp syntax. |
6dfcbe31 | 1459 | |
babc4609 JL |
1460 | ** The package misearch.el has been added. It allows Isearch to search |
1461 | through multiple buffers. A variable `multi-isearch-next-buffer-function' | |
1462 | defines the function to call to get the next buffer to search in the series | |
1463 | of multiple buffers. Top-level commands `multi-isearch-buffers', | |
1464 | `multi-isearch-buffers-regexp', `multi-isearch-files' and | |
1465 | `multi-isearch-files-regexp' accept a single argument that specifies | |
1466 | a list of buffers/files to search for a string/regexp. | |
9097e8af | 1467 | |
b350bdf2 CY |
1468 | ** The new major mode `special-mode' is intended as a parent for |
1469 | major modes such as those that set the "'mode-class 'special" property. | |
d53a60a6 | 1470 | |
05197f40 | 1471 | \f |
a933dad1 | 1472 | ---------------------------------------------------------------------- |
5b87ad55 | 1473 | This file is part of GNU Emacs. |
a933dad1 | 1474 | |
ab73e885 | 1475 | GNU Emacs is free software: you can redistribute it and/or modify |
5b87ad55 | 1476 | it under the terms of the GNU General Public License as published by |
ab73e885 GM |
1477 | the Free Software Foundation, either version 3 of the License, or |
1478 | (at your option) any later version. | |
5b87ad55 GM |
1479 | |
1480 | GNU Emacs is distributed in the hope that it will be useful, | |
1481 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
1482 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
1483 | GNU General Public License for more details. | |
a933dad1 | 1484 | |
5b87ad55 | 1485 | You should have received a copy of the GNU General Public License |
ab73e885 | 1486 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
a933dad1 | 1487 | |
05197f40 | 1488 | \f |
a933dad1 DL |
1489 | Local variables: |
1490 | mode: outline | |
1491 | paragraph-separate: "[ \f]*$" | |
1492 | end: | |
ab5796a9 | 1493 | |
a533413c | 1494 | arch-tag: e759449d-88b3-4de4-9900-3a6c3dfa23e2 |