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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 | ||
57 | ** The Mac Carbon port is no longer supported. | |
58 | Instead, use... [FIXME what?] | |
36e625ec | 59 | |
09e18d03 CY |
60 | ** The new configuration option "--with-dbus" enables D-Bus language |
61 | bindings for Emacs. | |
07e5c0b0 | 62 | |
bb9f7948 EZ |
63 | ** Support for many obsolete platforms has been removed. |
64 | See the list at the end of etc/MACHINES for details. | |
2e0ef05b | 65 | --- |
09e18d03 | 66 | *** Support for systems without alloca has been removed. |
2e0ef05b | 67 | --- |
09e18d03 | 68 | *** Support for Sun windows has been removed. |
2e0ef05b CY |
69 | --- |
70 | *** The `emacstool' utility has been removed. | |
09e18d03 | 71 | |
2e0ef05b | 72 | --- |
a46ee55c GM |
73 | ** The configure options `--with-gcc', `--without-gcc' have been removed. |
74 | Configure will use gcc by default. Set the CC environment variable if | |
75 | you need control over which C compiler is used. | |
76 | ||
09e18d03 CY |
77 | ** The refcards are now shipped as PDF files. |
78 | ||
2e0ef05b | 79 | --- |
09e18d03 CY |
80 | ** Emacs 23 comes with a new set of default icons. |
81 | Various resolutions are available as etc/images/icons/hicolor/*/apps/emacs.png. | |
82 | The Emacs 22 icon is available as `emacs22.png' in the same location. | |
4e5cdb4f | 83 | \f |
6dadd99f NR |
84 | * Changes in Emacs 23.1 |
85 | ||
06b62770 AR |
86 | ** Emacs can now be built under the Cocoa libraries on Mac OS X and GNUstep |
87 | libraries on other machines. Specify --with-ns to configure for this. By | |
88 | default a self-contained app will be built (containing all lisp). To | |
89 | install/share lisp with other emacsen (e.g. X11 build) use | |
90 | --disable-ns-self-contained. Use 'info-ns-emacs' or first entry under Help | |
91 | menu when running for more information. | |
92 | ||
0bcfd7d7 SM |
93 | ** `where-is-preferred-modifier' can specify your favorite modifier. |
94 | ||
09e18d03 | 95 | ** Improved X Window System support |
ba5ff07b | 96 | |
09e18d03 CY |
97 | *** Emacs now supports using both X displays and ttys in one session. |
98 | With an Emacs server active (M-x server-start), `emacsclient -t' | |
99 | creates a tty frame connected to the running emacs server. You can | |
100 | use any number of different ttys. `emacsclient -c' creates a new X11 | |
101 | frame on the current $DISPLAY (or a tty frame if $DISPLAY is not set). | |
780d7bb9 RS |
102 | |
103 | You can test for the presence of this feature in your Lisp code by | |
104 | testing for the `multi-tty' feature. | |
105 | ||
09e18d03 CY |
106 | **** Emacsclient can now open new terminal frames. |
107 | Now, the default behavior is to open a new Emacs frame by default. | |
108 | Use the -c option to get the old behavior of opening files in the | |
109 | currently selected Emacs frame. | |
d82c3d44 | 110 | |
09e18d03 CY |
111 | *** The new command close-display-connection closes a connection to a |
112 | remote display. | |
d82c3d44 | 113 | |
09e18d03 CY |
114 | *** Emacs now supports the XEmbed specification. |
115 | You can embed Emacs in another application on X11. The new command line | |
116 | option --parent-id is used to pass the parent window id to Emacs. See | |
7b476dbe JD |
117 | http://standards.freedesktop.org/xembed-spec/xembed-spec-latest.html |
118 | for details about XEmbed. | |
119 | ||
09e18d03 CY |
120 | *** Emacs can now set the frame opacity. |
121 | The opacity of a frame can be controlled by setting the `alpha' frame | |
122 | parameter. This only takes effect on a compositing window manager for | |
0f784aa6 JR |
123 | the X Window System, such as Compiz, Beryl and Compiz Fusion, or on |
124 | Windows 2000 and later versions of Windows. | |
55f9bad5 GM |
125 | |
126 | The alpha parameter should be an integer between 0 (transparent) and | |
09e18d03 CY |
127 | 100 (opaque), or a float number between 0.0 and 1.0. It can also be a |
128 | cons cell (ACTIVE . INACTIVE), where ACTIVE is the opacity of an | |
129 | active frame and INACTIVE is the opactity of non-active frames. | |
55f9bad5 | 130 | |
09e18d03 CY |
131 | The variable `frame-alpha-lower-limit' defines a lower bound for the |
132 | opacity; the default is 20. | |
55f9bad5 | 133 | |
09e18d03 | 134 | ** Internationalization changes |
fec8ef06 | 135 | |
09e18d03 CY |
136 | *** The Emacs character set is now a superset of Unicode. |
137 | (It has about four times the code space, which should be plenty). | |
0a963185 | 138 | |
09e18d03 CY |
139 | The internal encoding used for buffers and strings is now |
140 | Unicode-based and called `utf-8-emacs'. This encoding is backwards | |
141 | compatible with Unicode's UTF-8 encoding. The internal encoding | |
142 | previously used by Emacs, `emacs-mule', is still available. | |
6dadd99f | 143 | |
09e18d03 CY |
144 | During byte-compilation, Emacs 23 uses `utf-8-emacs' to write files. |
145 | As a result, byte-compiled files containing non-ASCII characters can't | |
146 | be read by earlier versions of Emacs. Files compiled by Emacs 20, 21, | |
147 | or 22 are loaded correctly as emacs-mule (whether or not they contain | |
148 | multibyte characters). This takes somewhat more time, so it may be | |
149 | worth recompiling existing .elc files which don't need to be shared | |
150 | with older Emacsen. | |
3ae459e5 | 151 | |
09e18d03 | 152 | *** There are new coding systems/aliases; see M-x list-coding-systems. |
c2e8590b | 153 | |
09e18d03 CY |
154 | *** There is a new charset implementation with many new charsets. |
155 | See M-x list-character-sets. New charsets can be defined conveniently | |
156 | as tables of unicodes. | |
1abe3a1e | 157 | |
09e18d03 CY |
158 | **** The dimension of a charset is now 1, 2, 3, or 4, and the size of |
159 | each dimension is no longer limited to 94 or 96. | |
eb28688c | 160 | |
09e18d03 CY |
161 | **** A dynamic charset priority list is used to infer the charset of |
162 | characters for display. | |
6c5d503f | 163 | |
09e18d03 CY |
164 | *** There are new language environments for Chinese-GBK, |
165 | Chinese-GB18030, Khmer, Bengali, Punjabi, Gujarati, Oriya, Telugu, | |
166 | Sinhala, and TaiViet. | |
c9447ae1 | 167 | |
09e18d03 CY |
168 | *** The minor modes unify-8859-on-encoding-mode and |
169 | unify-8859-on-decoding-mode are obsolete. | |
d466e9fc | 170 | |
09e18d03 | 171 | ** Emacs now supports serial port access on GNU/Linux, Unix, and |
81efacf9 CY |
172 | Windows. The new command `serial-term' starts an interactive terminal |
173 | on a serial port. The serial port can be configured at runtime with | |
174 | the mode-line mouse menu. | |
6c5d503f | 175 | |
09e18d03 | 176 | ** Menu Bar changes |
81efacf9 | 177 | --- |
09e18d03 CY |
178 | *** In the Options menu, the "Set Default Font" item applies the |
179 | selected font to the `default' face on all frames, not just the | |
180 | current frame. Furthermore, if Emacs is compiled with both GTK and | |
181 | Fontconfig support, the "Set Default Font" item uses the GTK font | |
182 | selection dialog instead of an Emacs pop-up menu. | |
81efacf9 | 183 | --- |
09e18d03 CY |
184 | *** The font setting chosen by "Set Default Font" is saved if the |
185 | "Save Options" item is used. | |
1b21ee06 | 186 | |
b350bdf2 CY |
187 | *** The Tools menu contains a new Encryption/Decryption submenu. |
188 | This contains commands provided by EasyPG, the newly-included | |
189 | interface to GnuPG (see New Modes and Packages). | |
81efacf9 CY |
190 | --- |
191 | *** In the Options menu, the "Truncate Long Lines in the Buffer" entry | |
192 | has been replaced with a submenu offering three different ways to | |
193 | handle long lines: truncation, continuation at the window edge, and | |
194 | the new word wrapping option (see Editing Changes, below). | |
5c4a15b3 | 195 | |
09e18d03 | 196 | ** Mode-line changes |
a6b85944 | 197 | +++ |
09e18d03 CY |
198 | *** The mode-line displays a `@', instead of `-', if the |
199 | default-directory for the current buffer is on a remote machine. | |
c4c9b6f9 | 200 | |
09e18d03 CY |
201 | *** The mode-line displays a mode menu when mouse-1 is clicked on a |
202 | minor mode, in the same way as it already did for major modes. | |
b3cf10d7 | 203 | |
09e18d03 CY |
204 | *** The `mode-line-emphasis' face is used to highlight certain |
205 | mode-line information (e.g. waiting for a VC command to finish). | |
d82c3d44 | 206 | |
09e18d03 CY |
207 | ** Directory-local variables can now be defined. |
208 | By default, Emacs looks in .dir-settings.el for directory-local | |
209 | variables. For more information, see `set-directory-project' and | |
210 | `define-project-bindings'. | |
307f3501 | 211 | |
6dadd99f | 212 | \f |
0bfd685e | 213 | * Startup Changes in Emacs 23.1 |
21f7b9d8 | 214 | |
a6b85944 | 215 | +++ |
3063e326 JL |
216 | ** The option `inhibit-startup-screen' (with aliases to old names |
217 | `inhibit-splash-screen' and `inhibit-startup-message') doesn't inhibit | |
218 | display of the initial message in the *scratch* buffer. If you don't | |
219 | want to display the initial message in the *scratch* buffer at startup, | |
220 | you can set the option `initial-scratch-message' to nil. | |
221 | ||
56e1896b JL |
222 | ** New user option `initial-buffer-choice' specifies what to display |
223 | after starting Emacs: startup screen, *scratch* buffer, visiting a | |
224 | file or directory. | |
225 | ||
aa5310e4 DK |
226 | ** New alias `argv' for `command-line-args-left' |
227 | This is a convenience alias, so that one can write `(pop argv)' | |
228 | inside of --eval command line arguments in order to access | |
229 | following arguments. | |
f8fd7ed3 GM |
230 | |
231 | ** The abbrev file is no longer read at startup in batch mode. | |
c44da964 | 232 | \f |
0bfd685e | 233 | * Incompatible Editing Changes in Emacs 23.1 |
b58cb59f | 234 | |
117907d4 JL |
235 | +++ |
236 | ** In Dired-x, all command guesses for ! are now added to the default | |
237 | list accessible by M-n instead of pushing all guesses temporarily into | |
238 | the history list. | |
239 | ||
81efacf9 | 240 | --- |
e405fa5f | 241 | ** The following input methods were removed in Emacs 22.2, but this was |
9a930d75 | 242 | not advertised: danish-alt-postfix, esperanto-alt-postfix, |
e405fa5f RS |
243 | finnish-alt-postfix, german-alt-postfix, icelandic-alt-postfix, |
244 | norwegian-alt-postfix, scandinavian-alt-postfix, spanish-alt-postfix, | |
245 | and swedish-alt-postfix. Use the versions without "alt-", which are | |
246 | identical. | |
0b0914ae | 247 | |
406c0f12 | 248 | \f |
0bfd685e | 249 | * Editing Changes in Emacs 23.1 |
406c0f12 | 250 | |
0c8b58e9 CY |
251 | ** The C-n and C-p line-motion commands now move by screen lines, |
252 | taking continued lines and variable-width characters into account. | |
253 | Setting `line-move-visual' to nil reverts this to the previous | |
254 | behavior (motion by logical lines based on buffer contents alone). | |
255 | ||
09e18d03 CY |
256 | ** C-x C-c now invokes `save-buffers-kill-terminal', and C-z now |
257 | invokes `suspend-frame'. This change is for compatibility with the | |
258 | new multi-tty support (see `Improved X Window System support' above). | |
3ae459e5 | 259 | |
09e18d03 | 260 | ** Mark changes |
59b5d020 | 261 | +++ |
3ae459e5 | 262 | *** Transient Mark mode is now on by default. |
3ae459e5 CY |
263 | +++ |
264 | *** mark-even-if-inactive now defaults to t | |
3ae459e5 | 265 | +++ |
b350bdf2 CY |
266 | *** When Transient Mark mode is on, C-SPC C-SPC pushes a mark without |
267 | activating it. | |
1ac03a31 | 268 | +++ |
3ae459e5 CY |
269 | *** When Transient Mark mode is on, M-q now fills the region if the |
270 | region is active. Otherwise, it fills the current paragraph. | |
ecde850a | 271 | +++ |
3ae459e5 CY |
272 | *** When Transient Mark mode is on, M-$ now checks spelling of the |
273 | region if the region is active. Otherwise, it checks spelling of the | |
dc868f13 | 274 | word at point. |
3ae459e5 CY |
275 | *** When Transient Mark mode is on, TAB now indents the region if the |
276 | region is active. | |
3ae459e5 CY |
277 | *** `use-empty-active-region' controls whether an empty active region |
278 | in Transient Mark mode should make commands operate on that empty | |
279 | region. | |
280 | ||
281 | ** Temporarily active regions | |
4502d15f | 282 | +++ |
3ae459e5 CY |
283 | *** The new variable shift-select-mode, non-nil by default, controls |
284 | shift-selection. When Shift Select mode is on, shift-translated | |
285 | motion keys (e.g. S-left and S-down) activate and extend a temporary | |
286 | region, similar to mouse-selection. | |
4502d15f | 287 | +++ |
3ae459e5 CY |
288 | *** Temporarily active regions, created using shift-selection or |
289 | mouse-selection, are not necessarily deactivated in the next command. | |
290 | They are only deactivated after point motion commands that are not | |
291 | shift-translated, or after commands that would ordinarily deactivate | |
292 | the mark in Transient Mark mode (e.g., any command that modifies the | |
293 | buffer). | |
294 | ||
505d8756 | 295 | ** Minibuffer changes |
297b8ccd | 296 | |
09e18d03 CY |
297 | *** Operations like C-x b and C-x C-f, which use switch-to-buffer, do |
298 | not fail any more when used in a minibuffer or a dedicated window. | |
299 | Instead, they fallback on using pop-to-buffer, which will use some | |
300 | other window. | |
23d2b215 | 301 | |
d47a29c1 JL |
302 | *** When M-n in the minibuffer reaches the end of the list of defaults, |
303 | it adds the completion list to the end, so next M-n continues putting | |
304 | completion items to the minibuffer. The same principle applies to | |
305 | incremental search commands as well: C-s or C-M-s starts searching | |
306 | the default values and after the end of defaults they continue | |
307 | searching minibuffer completion items. | |
f3ed2b83 | 308 | |
09e18d03 CY |
309 | *** Minibuffer input of shell commands now comes with completion. |
310 | ||
311 | *** In the `C-x d' (Dired) prompt, typing M-n gives the visited file | |
312 | name of the current buffer. | |
dc2f6c05 | 313 | |
09e18d03 CY |
314 | *** In the M-! (shell-command) prompt, M-n provides some default commands. |
315 | These are guessed using the file extension of the current file, based | |
316 | on the file-handlers specified in the operating system's `mailcap' | |
317 | file. The ! command in Dired (dired-do-shell-command) works | |
318 | similarly, using the file displayed on the current line. | |
117907d4 JL |
319 | |
320 | *** A list of regexp default values is available via M-n for `occur', | |
321 | `keep-lines', `flush-lines' and `how-many'. This list includes the active | |
322 | region in transient-mark-mode, the word under the cursor, the last isearch | |
323 | regexp, the last isearch string and the last replacement regexp. | |
324 | ||
297b8ccd JL |
325 | *** isearch started in the minibuffer searches in the minibuffer history. |
326 | Reverse isearch commands (C-r, C-M-r) search in previous minibuffer | |
327 | history elements, and forward isearch commands (C-s, C-M-s) search in | |
328 | next history elements. When the reverse search reaches the first history | |
329 | element, it wraps to the last history element, and the forward search | |
330 | wraps to the first history element. When the search is terminated, the | |
331 | history element containing the search string becomes the current. | |
332 | ||
505d8756 GM |
333 | ** Face changes |
334 | ||
b350bdf2 CY |
335 | *** S-down-mouse-1 now pops up a menu for changing the font and text |
336 | size of the default face in the current buffer. The face is changed | |
337 | via face remapping (see below). | |
d2d160bd | 338 | |
f20186fd GM |
339 | *** FIXME face-remap |
340 | ||
09e18d03 | 341 | ** Primary selection changes |
0091c67e | 342 | |
09e18d03 CY |
343 | *** If `select-active-regions' is t, setting the mark automatically |
344 | makes the new region into the primary selection (for interaction with | |
345 | other window applications). If you enable this, you might want to | |
346 | bind `mouse-yank-primary' to Mouse-2. | |
c160dc76 | 347 | |
b350bdf2 CY |
348 | *** You can disable kill ring commands from accessing the primary |
349 | selection by setting `x-select-enable-primary' to nil. | |
2e282009 | 350 | |
09e18d03 | 351 | ** Completion changes |
1816bda7 | 352 | |
09e18d03 CY |
353 | *** `completion-styles' can be customized to choose your favorite |
354 | completion style. | |
c06c430f | 355 | |
09e18d03 | 356 | *** The default completion styles include a form of partial-completion. |
c06c430f | 357 | |
09e18d03 CY |
358 | *** The new command `minibuffer-force-complete' chooses one of the |
359 | possible completions, rather than stopping at the common prefix. | |
a2e0b5dd | 360 | |
b350bdf2 CY |
361 | *** `completion-auto-help' can be set to `lazy' to list the |
362 | completions only if you repeat the completion. This was already | |
363 | supported in `partial-completion-mode'. | |
a0818148 | 364 | |
85b1de32 CY |
365 | ** Continuation lines can be wrapped at word boundaries |
366 | (word-wrapping) instead of the right window edge. The new per-buffer | |
367 | variable `word-wrap', if non-nil turns on word-wrapping. Word | |
368 | wrapping does not take place if continuation lines are not shown, | |
369 | e.g. if truncate-lines is non-nil. | |
370 | ||
463c6766 CY |
371 | ** Window management changes |
372 | ||
373 | *** truncate-partial-width-windows now accepts integer values, which | |
374 | specify a minimum window width for partial-width windows, below which | |
375 | lines are truncated. The default has been changed to 30. | |
376 | ||
377 | *** The new command balance-windows-area balances windows both | |
378 | vertically and horizontally. | |
379 | ||
09e18d03 | 380 | ** Miscellaneous changes: |
3f7194ed | 381 | |
f45acc9d JL |
382 | *** New keymap `search-map' bound to `M-s' provides global bindings |
383 | for search related commands: `M-s o' for `occur', `M-s h r' for | |
384 | `highlight-regexp' and other hi-lock commands on the `M-s h' prefix. | |
385 | ||
09e18d03 CY |
386 | *** C-l is bound to the new command recenter-top-bottom, rather than recenter. |
387 | This moves the current line to window center, top and bottom on | |
388 | successive invokations. | |
15f3eb73 | 389 | |
09e18d03 | 390 | *** scroll-preserve-screen-position also preserves the column position. |
c154c0be | 391 | |
09e18d03 CY |
392 | *** If `yank-pop-change-selection' is t, rotating the kill ring also |
393 | updates the selection or clipboard to the current yank, just as M-w | |
394 | would do so with the text it copies to the kill ring. | |
395 | ||
396 | +++ | |
397 | *** C-M-% now shows replacement as it would look in the buffer, with | |
398 | `\N' and `\&' substituted according to the match. Old behavior can be | |
399 | restored by customizing `query-replace-show-replacement'. | |
400 | ||
401 | *** The command shell prompts for the default directory, when it is | |
402 | called with a prefix and the default directory is a remote file name. | |
403 | This is because some file name handlers (like ange-ftp) are not able to | |
404 | run processes remotely. | |
405 | ||
406 | *** The new command kill-matching-buffers kills buffers whose name | |
407 | matches a regexp. | |
408 | ||
b350bdf2 CY |
409 | *** The new commands `pp-macroexpand-expression' and |
410 | `pp-macroexpand-last-sexp' pretty-print macro expansions. | |
8f377a4b | 411 | |
09e18d03 CY |
412 | \f |
413 | * New Modes and Packages in Emacs 23.1 | |
e11910e2 | 414 | |
09e18d03 CY |
415 | ** FIXME add details of new packages imported from lisp/gnus. |
416 | [Maybe some information from doc/misc/gnus-coding.texi can be reused] | |
c06c430f | 417 | |
e11910e2 GM |
418 | ** Auto Composition Mode is a minor mode that composes characters |
419 | automatically when they are displayed. It is globally on by default. | |
420 | It uses `auto-composition-function' (default `auto-compose-chars'). | |
421 | ||
09e18d03 | 422 | ** Bubbles, a new game, is similar to SameGame. |
f6b26818 | 423 | |
7ef39c6e GM |
424 | ** bug-reference.el provides clickable links to bug reports. |
425 | ||
b350bdf2 | 426 | ** copyright.el provides utilities for updating copyright notices in files. |
09e18d03 CY |
427 | |
428 | ** dbus.el provides D-Bus language bindings. | |
429 | D-Bus is an inter-process communication mechanism for applications | |
b350bdf2 | 430 | residing on the same host. See the manual for details. |
09e18d03 | 431 | |
b350bdf2 CY |
432 | ** Doc View Mode allows viewing of PDF, PostScript and DVI documents. |
433 | One can also search for a regular expression in the document. For | |
434 | details, see the commentary in doc-view.el. | |
09e18d03 | 435 | |
b350bdf2 CY |
436 | ** EasyPG provides an interface to the GNU Privacy Guard (GnuPG). |
437 | It includes a GnuPG keyring browser, cryptographic operations on | |
438 | regions and files, and automatic encryption of *.gpg files. For | |
439 | details, see the EasyPG Assistant User's Manual. | |
09e18d03 CY |
440 | |
441 | ** json.el is a library for parsing and generating JSON | |
442 | (JavaScript Object Notation), a lightweight data-interchange format. | |
443 | ||
444 | ** linum.el is a new minor mode to display line numbers for the | |
445 | current buffer. | |
446 | ||
447 | ** minibuffer-indicate-depth-mode shows the minibuffer depth in the prompt. | |
448 | ||
449 | ** nXML Mode | |
450 | This is a new mode for editing XML documents. It allows a schema to | |
451 | be associated with the XML document being edited, using Relax NG as | |
452 | the schema language. The schema is used to provide two key features: | |
453 | ||
454 | *** Continuous validation. nXML validates as you type, highlighting | |
455 | any invalid parts of your document. | |
456 | ||
457 | *** Completion. nXML can assist you in entering an element name, | |
458 | attribute name or data value by using information about what is | |
459 | allowed by the schema in that context. | |
460 | ||
461 | ** proced.el provides a Dired-like interface for operating on processes. | |
462 | Proced makes an Emacs buffer containing a listing of the current | |
463 | processes (using ps(1)). You can use the normal Emacs commands to | |
464 | move around in this buffer, and special Proced commands to operate on | |
465 | the processes listed. | |
466 | ||
467 | ** Remember Mode is a mode for jotting down things to remember. | |
468 | Notes can be saved to a Diary file. For details, see the Remember | |
469 | Manual. | |
470 | ||
471 | ** RST mode is a major mode for editing ReSTructured-Text files. | |
c2d0b538 | 472 | |
12f165e9 CY |
473 | ** Visual Line mode provides support for editing by visual lines. |
474 | It turns on word-wrapping in the current buffer, and rebinds C-a, C-e, | |
475 | and C-k to commands that operate by visual lines instead of logical | |
476 | lines. This is a more reliable replacement for longlines-mode. | |
477 | ||
c934813f GM |
478 | ** A new `whitespace' package has been installed, and the pre-existing one |
479 | renamed to `old-whitespace'. | |
480 | [FIXME someone explain why this is good, if it is...] | |
481 | ||
09e18d03 CY |
482 | ** zeroconf.el offers service discovery and service publishing |
483 | interfaces according to the zeroconf specification. It communicates | |
484 | with Avahi, a zeroconf implementation, via D-Bus messages on systems | |
485 | which have installed this software. | |
486 | ||
487 | \f | |
488 | * Changes in Specialized Modes and Packages in Emacs 23.1 | |
489 | ||
490 | ** Abbrev has been rewritten in Elisp and extended with more flexibility. | |
e047f448 | 491 | *** New functions: abbrev-get, abbrev-put, abbrev-table-get, abbrev-table-put, |
a3709a8c | 492 | abbrev-table-p, abbrev-insert, abbrev-table-menu. |
e047f448 SM |
493 | *** Special hook `abbrev-expand-functions' obsoletes `pre-abbrev-expand-hook'. |
494 | *** `make-abbrev-table', `define-abbrev', `define-abbrev-table' all take | |
495 | extra arguments for arbitrary properties. | |
496 | *** New variable `abbrev-minor-mode-table-alist'. | |
497 | *** `local-abbrev-table' can hold a list of abbrev-tables. | |
498 | *** Abbrevs have now the following special properties: | |
79415279 | 499 | `:count', `:system', `:enable-function', `:case-fixed'. |
e047f448 SM |
500 | *** Abbrev-tables have now the following special properties: |
501 | `:parents', `:case-fixed', `:enable-function', `:regexp', | |
502 | `abbrev-table-modiff'. | |
503 | ||
09e18d03 CY |
504 | ** Apropos |
505 | *** `apropos-library' describes the elements defined in a given library. | |
506 | *** Set `apropos-compact-layout' is you want a more compact (but wider) layout. | |
0253fffa | 507 | |
09e18d03 | 508 | ** Archive Mode has basic support to browse Rar archives. |
0253fffa | 509 | |
09e18d03 | 510 | ** BibTeX mode |
bafbec39 | 511 | |
09e18d03 | 512 | *** New command `bibtex-initialize' (re)initializes BibTeX buffers. |
bafbec39 | 513 | |
09e18d03 CY |
514 | *** New `bibtex-entry-format' options `whitespace', `braces', and |
515 | `string', disabled by default. | |
12bbb989 | 516 | |
09e18d03 CY |
517 | *** New variable `bibtex-cite-matcher-alist' contains rules to |
518 | identify cited keys in BibTeX entries, used by `bibtex-find-crossref'. | |
9097e8af | 519 | |
09e18d03 | 520 | *** Command `bibtex-url' allows multiple URLs per entry. |
4c24d241 | 521 | |
09e18d03 | 522 | ** Calendar and diary |
320bc739 | 523 | |
09e18d03 CY |
524 | +++ |
525 | *** There is a new date style, `iso', essentially year/month/day. | |
526 | The variable `european-calendar-style' is obsolete - use `calendar-date-style'. | |
527 | Similarly, the commands `american-calendar' and `european-calendar' | |
528 | should be replaced by `calendar-set-date-style'. | |
c3bb6fdb | 529 | |
09e18d03 CY |
530 | +++ |
531 | *** The calendar namespace has been rationalized. | |
532 | All functions and variables now begin with a `calendar-', `diary-', or | |
533 | `holiday-' prefix. The various calendar systems have secondary | |
534 | prefixes, eg `calendar-french-'. The old names you are likely to use | |
535 | directly still exist, for the time being, as aliases, but please start | |
536 | using the new names. | |
537 | ||
e889393b GM |
538 | *** The whitespace in the calendar layout can be customized. |
539 | See the variables: | |
540 | calendar-left-margin, calendar-intermonth-spacing, calendar-column-width, | |
541 | calendar-day-header-width, and calendar-day-digit-width. | |
542 | ||
543 | *** Text (e.g. ISO weeks) can be displayed between the calendar months. | |
544 | See the variables calendar-intermonth-header and calendar-intermonth-text. | |
545 | ||
09e18d03 CY |
546 | *** The function `holiday-chinese' computes holidays on the Chinese calendar. |
547 | It has been used to add items to the list `holiday-oriental-holidays'. | |
548 | ||
549 | *** `diary-remind' accepts a negative number -DAYS as a shorthand for | |
550 | the list (1 2 ... DAYS). | |
24cdde13 | 551 | |
a6b85944 CY |
552 | ** Change Log mode |
553 | ||
554 | *** The new command C-c C-f (change-log-find-file) finds the file | |
555 | associated with the current log entry. | |
556 | ||
557 | *** The new command C-c C-c (change-log-goto-source) goes to the | |
558 | source code associated with a log entry. | |
559 | ||
76be286d DN |
560 | ** Compile and grep modes |
561 | ||
562 | *** The mode-line entry for the *compilation* and *grep* buffer is color coded. | |
563 | It has different colors for to show that: (a) the command is still | |
564 | running, (b) successful completion, (c) error. | |
565 | ||
566 | *** compilation-auto-jump-to-first-error tells `compile' to jump to | |
813fb3fe SM |
567 | the first error encountered during compilations. |
568 | ||
0b22a5e1 DN |
569 | *** The `cc' alias for C++ files in `grep-file-aliases' has been |
570 | improved. `hh' can be used to match C++ header files and `cchh' both | |
571 | C++ sources and headers. | |
572 | ||
09e18d03 | 573 | ** Custom |
b68769f2 | 574 | +++ |
09e18d03 | 575 | *** defcustom accepts new keyword arguments, `:safe' and `:risky', which |
b68769f2 GM |
576 | set a variable's `safe-local-variable' and `risky-local-variable' property. |
577 | ||
09e18d03 | 578 | ** Diff mode |
38b627ce | 579 | |
09e18d03 CY |
580 | *** diff-refine-hunk highlights word-level details of changes in a diff hunk. |
581 | It's used automatically as you move through hunks, see | |
582 | diff-auto-refine. It is bound to `C-c C-b'. | |
b58a65fa | 583 | |
09e18d03 CY |
584 | *** diff-add-change-log-entries-other-window iterates through the diff |
585 | buffer and tries to create ChangeLog entries for each change. | |
586 | It is bound to `C-x 4 A'. | |
f3ff0fe9 | 587 | |
09e18d03 CY |
588 | ** Fortran |
589 | *** The variable `fortran-line-length' can change the fixed-form line-length. | |
117d3cc5 | 590 | |
09e18d03 CY |
591 | *** In Fortran mode, M-; is now bound to the standard comment-dwim, |
592 | rather than fortran-indent-comment. | |
76be286d | 593 | |
09e18d03 CY |
594 | +++ |
595 | *** (The increasingly misnamed) F90 mode supports Fortran 2003 syntax. | |
b592c357 | 596 | |
09e18d03 | 597 | ** Gnus |
6653c6b7 | 598 | |
09e18d03 CY |
599 | *** The Gnus package has been updated |
600 | There are many news features, bug fixes and improvements; see the file | |
601 | GNUS-NEWS or the node "No Gnus" in the Gnus manual for details. | |
db86064f | 602 | |
09e18d03 CY |
603 | *** In Emacs 23, Gnus uses Emacs' new internal coding system `utf-8-emacs' for |
604 | saving articles drafts and ~/.newsrc.eld. These file may not be read | |
605 | correctly in Emacs 22 and below. If you want to Gnus across different Emacs | |
606 | versions, you may set `mm-auto-save-coding-system' to `emacs-mule'. | |
15947a44 | 607 | |
09e18d03 CY |
608 | ** Help mode |
609 | *** New macro `with-help-window' should set up help windows better | |
610 | than `with-output-to-temp-buffer' with `print-help-return-message'. | |
611 | *** New option `help-window-select' permits to customize whether help | |
612 | window shall be automatically selected when invoking help. | |
613 | *** New variable `help-window-point-marker' permits to specify new | |
614 | position of point in help window (for example in `view-lossage'). | |
15947a44 | 615 | |
09e18d03 | 616 | ** Isearch |
15947a44 | 617 | |
f45acc9d JL |
618 | *** New command `isearch-highlight-regexp' bound to `M-s h r' |
619 | in isearch mode runs `highlight-regexp' (`hi-lock-face-buffer') | |
620 | with the current search string as its regexp argument. | |
621 | ||
09e18d03 CY |
622 | *** New command `isearch-occur' bound to `M-s o' in isearch mode |
623 | runs `occur' with the current search string. | |
15947a44 | 624 | |
09e18d03 CY |
625 | *** isearch can now search through multiple ChangeLog files. |
626 | When running isearch in a ChangeLog file, if the search fails, | |
627 | then another C-s tries searching the previous ChangeLog, | |
628 | if there is one (e.g. go from ChangeLog to ChangeLog.12). | |
93a142e1 | 629 | |
09e18d03 | 630 | This is enabled if isearch-buffers-multi is non-nil. |
15947a44 | 631 | |
09e18d03 CY |
632 | *** The part of an isearch that failed to match is highlighted in `isearch-fail' |
633 | face. | |
5d503af9 | 634 | |
09e18d03 CY |
635 | *** `C-h C-h' in isearch mode displays isearch-specific Help screen, |
636 | `C-h b' displays all isearch key bindings, `C-h k' displays the full | |
637 | documentation of the given isearch key sequence, `C-h m' displays | |
638 | documentation of isearch mode. All the rest Help commands exit isearch mode | |
639 | and execute their global definitions. | |
332de56f | 640 | |
09e18d03 CY |
641 | *** When started in the minibuffer, Isearch searches in the minibuffer |
642 | history. See `Minibuffer changes', above. | |
2793c9bb | 643 | |
09e18d03 CY |
644 | ** Python |
645 | *** The file etc/emacs.py now supports both Python 2 and 3, meaning | |
646 | that either version can be used as inferior Python by python.el. | |
c5578d5f | 647 | |
09e18d03 CY |
648 | *** Python mode now has `pdbtrack' functionality. When using pdb to |
649 | debug a Python program, pdbtrack notices the pdb prompt and displays | |
650 | the source file and line that the program is stopped at, much the same | |
651 | way as gud-mode does for debugging C programs with gdb. | |
2793c9bb | 652 | |
09e18d03 | 653 | ** T-mouse Mode |
2793c9bb | 654 | |
09e18d03 CY |
655 | *** If the gpm mouse server is running and t-mouse-mode is enabled, |
656 | Emacs uses a Unix socket in a GNU/Linux console to talk to server, | |
657 | rather than faking events using the client program mev. This C level | |
658 | approach provides mouse highlighting and help echoing in the | |
659 | minibuffer. | |
2793c9bb | 660 | |
cc213f24 MA |
661 | +++ |
662 | ** Tramp | |
663 | ||
664 | *** New connection methods. | |
665 | The new methods "plinkx", "plink2", "psftp", "sftp" and "fish" have | |
666 | been introduced. There are also new so-called gateway methods | |
667 | "tunnel" and "socks". | |
668 | ||
669 | *** Multihop syntax has been removed. | |
670 | The pseudo-method "multi" has been removed. Instead of, multi hops | |
671 | can be specified by the new variable `tramp-default-proxies-alist'. | |
672 | ||
673 | *** More default settings. | |
674 | Default values can be set via the variables `tramp-default-user', | |
675 | `tramp-default-user-alist' and `tramp-default-host'. | |
676 | ||
677 | *** Connection information is cached. | |
678 | In order to reduce connection setup, information about used | |
679 | connections are kept persistent in a file. The name of this file is | |
680 | defined in the variable `tramp-persistency-file-name'. | |
681 | ||
682 | *** Control of remote processes. | |
683 | Running processes on a remote host can be controlled by settings in | |
684 | `tramp-remote-path' and `tramp-remote-process-environment'. | |
685 | ||
686 | *** Success of remote copy is checked. | |
687 | When the variable `file-precious-flag' is set, the success of a remote | |
688 | file copy is checked via the file's checksum. | |
689 | ||
7cba69f2 MA |
690 | *** Passwords can be read from an authentification file. |
691 | Tramp uses the package `auth-source' to read passwords from a file, if | |
692 | necessary. | |
693 | ||
289aee1c | 694 | ** VC and related modes |
95d8772f | 695 | |
09e18d03 CY |
696 | *** VC now supports applying VC operations to a set of files at a time. |
697 | This enables VC to work much more effectively with changeset-oriented | |
698 | version-control systems such as Subversion, GNU Arch, Mercurial, Git | |
699 | and Bzr. VC will now pass a multiple-file commit to these systems as | |
700 | a single changeset. | |
d15f7b68 | 701 | |
09e18d03 | 702 | *** vc-dir is a new command that displays file names and their VC |
289aee1c DN |
703 | status. It allows to apply various VC operations to a file, a |
704 | directory or a set of files/directories. | |
c3f01f42 | 705 | |
09e18d03 | 706 | *** Clicking on the VC mode-line entry now pops the VC menu. |
4c24d241 | 707 | |
09e18d03 | 708 | *** The VC mode-line entry now has a tooltip that explains the VC file status. |
d15f7b68 | 709 | |
09e18d03 CY |
710 | *** In VC Annotate mode, for VC systems that support changesets, you can |
711 | see the diff for the whole changeset (not only for the current file) | |
e86fa02b | 712 | by typing the D key. |
a9f480e8 | 713 | |
e86fa02b | 714 | *** In VC Annotate mode, you can type v to toggle the annotation visibility. |
2fb6c6be | 715 | |
09e18d03 CY |
716 | *** In VC Annotate mode, you can type f to show the file revision on |
717 | the current line. | |
d5d381e2 | 718 | |
e86fa02b DN |
719 | *** In VC Annotate mode, for VC systems that support changesets, you |
720 | can see the diff for the whole changeset (not only for the current | |
721 | file) by typing the D key or using the "Show changeset diff of | |
722 | revision at line" menu entry. | |
723 | ||
09e18d03 CY |
724 | *** Asynchronous VC commands display [Waiting...] in the mode-line |
725 | of the corresponding buffer as long as the asynchronous process is | |
726 | active. | |
cf944fa4 | 727 | |
09e18d03 CY |
728 | *** Log entries can be modified using the key "e" in log-view. |
729 | For now only CVS, RCS, SCCS and SVN support this functionality. | |
730 | This is done by the `modify-change-comment' backend function. | |
143cecdb | 731 | |
09e18d03 CY |
732 | *** In log-view-mode, for VC systems that support changesets, you can |
733 | see the diff for the whole changeset (not only for the current file) | |
734 | by typing the D key or using the "Changeset Diff" menu entry. | |
cf944fa4 | 735 | |
289aee1c DN |
736 | *** In Log Edit mode, C-c C-d now shows the diff for the files involved. |
737 | ||
738 | *** vc-git supports the "git grep" command. | |
739 | ||
09e18d03 CY |
740 | *** VC Support for Meta-CVS has been removed for lack of maintainer able |
741 | to update it to the new VC. | |
cf944fa4 | 742 | |
d15f7b68 GM |
743 | ** Miscellaneous |
744 | ||
745 | *** comint-mode uses `start-file-process' now (see Lisp Changes). | |
cc213f24 MA |
746 | If `default-directory' is a remote file name, subprocesses are started |
747 | on the corresponding remote system. | |
748 | ||
09e18d03 | 749 | *** In Dired, C-x C-q now runs the command wdired-change-to-wdired-mode, |
40aa8257 JL |
750 | and C-x C-q in wdired-mode exits it with asking a question about |
751 | saving changes. | |
d15f7b68 | 752 | |
09e18d03 CY |
753 | *** Eldoc highlights the function argument under point |
754 | with the face `eldoc-highlight-function-argument'. | |
4596901f | 755 | |
09e18d03 | 756 | *** In Etags, the --members option is now the default. |
fffa137c | 757 | Use --no-members if you want the old default behavior of not tagging |
09e18d03 | 758 | struct members in C, members variables in C++ and variables in PHP. |
1752e205 | 759 | |
09e18d03 CY |
760 | *** The `gdb' command only works with the graphical interface now. |
761 | Use `gud-gdb' if you want the (old) text command mode. | |
762 | ||
763 | *** goto-address.el provides two new minor modes, goto-address-mode and | |
764 | goto-address-prog-mode, which buttonize URLS and email addresses. | |
765 | ||
766 | *** The new command `eshell/info' runs info in an eshell buffer. | |
3cf86f00 | 767 | |
4d1e89e3 GM |
768 | *** The new variable `ffap-rfc-directories' specifies a list of local |
769 | directories in which `ffap-rfc' will first search for RFCs. | |
770 | ||
09e18d03 CY |
771 | *** hide-ifdef-mode allows shadowing ifdef-blocks instead of hiding them. |
772 | See option `hide-ifdef-shadow' and function `hide-ifdef-toggle-shadowing'. | |
773 | ||
774 | *** `icomplete-prospects-height' now supercedes `icomplete-prospects-length'. | |
775 | ||
776 | *** Info displays breadcrumbs in the header of the page. | |
777 | See Info-breadcrumbs-depth to control it. | |
778 | ||
d2c98acc | 779 | *** net-utils has an `iwconfig' command, similar to the existing `ifconfig'. |
b7bfcc8a | 780 | It is used to configure wireless interfaces. |
d2c98acc | 781 | |
09e18d03 CY |
782 | *** The pcmpl-unix package supports hostname completion for ssh and scp. |
783 | ||
784 | *** sgml-electric-tag-pair-mode lets you simultaneously edit matched tag pairs. | |
785 | ||
786 | *** smerge-refine highlights word-level details of changes in conflict. | |
787 | It's used automatically as you move through conflicts, see smerge-auto-refine. | |
788 | ||
789 | *** talk.el has been extended for multiple tty support. | |
790 | ||
791 | *** A new command `display-time-world' has been added to the Time | |
792 | package. It creates a buffer with an updating time display using | |
793 | several time zones. | |
794 | ||
795 | *** The appearance of superscript and subscript in TeX is more customizable. | |
796 | See the documentation of the variables: tex-fontify-script, | |
797 | tex-font-script-display, tex-suscript-height-ratio, and | |
798 | tex-suscript-height-minimum. | |
799 | ||
800 | *** view-remove-frame-by-deleting is now by default t | |
801 | since users found iconification of view-mode frames distracting. | |
802 | ||
803 | *** WoMan tries to add locale-specific manual page directories to the | |
804 | search path. This can be disabled by setting `woman-locale' to nil. | |
805 | ||
0bfd685e GM |
806 | \f |
807 | * Changes in Emacs 23.1 on non-free operating systems | |
8ab314f9 | 808 | |
203553fd JPW |
809 | ** Case is now considered significant in completion on MS-Windows. |
810 | The default value of `completion-ignore-case' is now nil on | |
811 | MS-Windows, the same as it is for other operating systems. The | |
812 | variable doesn't apply to reading a file name -- in that case Emacs | |
813 | heeds `read-file-name-completion-ignore-case' instead. | |
814 | ||
672f99b6 JR |
815 | --- |
816 | ** IPv6 is supported on MS-Windows. | |
817 | Emacs now supports IPv6 on Windows XP and later, and earlier versions | |
2660a9da | 818 | of Windows with third party IPv6 stacks installed. In Emacs 22, IPv6 was |
672f99b6 JR |
819 | supported on other platforms, but not on Windows due to using the winsock |
820 | 1.1 header file, even though Emacs was linking to the winsock 2 library. | |
821 | ||
0d22595d | 822 | --- |
6e344060 JR |
823 | ** Busy cursor (hourglass) now displays on MS-Windows. |
824 | When Emacs is busy, an hourglass mouse cursor is displayed on Windows. | |
2660a9da JR |
825 | In Emacs 22 only X supported the busy cursor. |
826 | ||
827 | --- | |
828 | ** Battery status is available on MS-Windows | |
829 | Emacs can now display the battery status in the mode-line when enabled with | |
830 | display-battery-mode or from the Options menu. More verbose battery | |
831 | information is also available with the command `battery'. In Emacs 22 | |
832 | battery status was supported only on GNU/Linux and Mac. | |
6e344060 | 833 | |
3280c5c5 JR |
834 | ** More keys available on MS-Windows. |
835 | Keys normally associated with IMEs, and some exotic keys not normally found | |
836 | on standard keyboards have been given names so they can be bound to functions | |
837 | inside Emacs. If there are keys on your keyboard that have not been exposed | |
838 | to Emacs in the past, try C-h k to see if they are available now. | |
839 | ||
840 | Emacs can now bind functions to the extra buttons for media player and | |
841 | browser control present on some keyboards. These buttons are disabled | |
842 | by default, since enabling them prevents their system-wide use when | |
843 | Emacs has focus. To enable them, set the variable | |
0caa490b | 844 | w32-pass-multimedia-buttons to nil. See the doc string of that variable |
3280c5c5 | 845 | for the list of extra keys that are available. |
2660a9da | 846 | |
0bfd685e GM |
847 | \f |
848 | * Incompatible Lisp Changes in Emacs 23.1 | |
8ec65cd7 | 849 | |
fd9440c5 | 850 | ** Variables cannot be both buffer-local and frame-local any more. |
a9b08254 | 851 | |
fc944cd4 | 852 | ** `functionp' returns nil for special forms. |
65f81a0b | 853 | I.e., it only returns t for objects that can be passed to `funcall'. |
fc944cd4 | 854 | |
d82c3d44 GM |
855 | ** The behavior of map-char-table has changed. It may call the |
856 | specified function with a cons (FROM . TO) as a key if characters in | |
857 | that range have the same value. | |
858 | ||
b350bdf2 CY |
859 | ** Process changes |
860 | +++ | |
861 | *** The function `dired-call-process' has been removed. | |
03605a28 | 862 | +++ |
b350bdf2 CY |
863 | *** The multibyteness of process filters is now determined by the |
864 | coding-system used for decoding. The functions | |
865 | `process-filter-multibyte-p' and `set-process-filter-multibyte' are | |
866 | obsolete. | |
03605a28 | 867 | |
777ea444 | 868 | ** The variable `byte-compile-warnings' can now be a list starting with `not', |
0caa490b | 869 | meaning to disable the specified warnings. The meaning of this list |
777ea444 | 870 | may therefore be the reverse of what you expect (of course, this is |
0caa490b | 871 | only an issue if you make use of the new `not' syntax). Rather than |
777ea444 GM |
872 | checking/manipulating elements directly, use the new functions |
873 | `byte-compile-warning-enabled-p', `byte-compile-disable-warning', and | |
874 | `byte-compile-enable-warning.' | |
875 | ||
69df9d6d GM |
876 | ** `mode-name' is no longer guaranteed to be a string. |
877 | Use `(format-mode-line mode-name)' to ensure a string value. | |
878 | ||
b350bdf2 CY |
879 | ** Internationalization changes |
880 | ||
881 | *** The value of the function `charset-id' is now always 0. | |
882 | ||
883 | *** The functions `register-char-codings' and `coding-system-spec' | |
884 | have been removed. | |
885 | ||
886 | *** The cpXXX coding systems are now supported automatically. | |
887 | The functions cp-...-codepage, which you had to use in Emacs 22 to | |
888 | enable support for these coding systems, have been deleted. | |
889 | ||
890 | *** The following features have been removed. They were used for | |
85a1f98d GM |
891 | displaying various scripts with specific fonts, and are no longer |
892 | needed now that OpenType font support is available: | |
893 | ||
b350bdf2 | 894 | **** `devanagari' and `devan-util', and all associated devanagari-* and |
85a1f98d GM |
895 | dev-* functions and variables (formerly used for Devanagari script). |
896 | ||
b350bdf2 | 897 | **** `kannada' and `knd-util', and all associated kannada-* and knd-* |
85a1f98d GM |
898 | functions and variables (formerly used for Kannada script). |
899 | ||
b350bdf2 | 900 | **** `malayalam' and `mlm-util', and all associated malayalam-* and |
85a1f98d GM |
901 | mlm-* functions and variables (formerly used for Malayalam script). |
902 | ||
b350bdf2 | 903 | **** `tamil' and `tml-util, and all associated tamil-* and tml-* |
85a1f98d | 904 | functions and variables (formerly used for Tamil script). |
6a6b4d7d | 905 | |
0bfd685e GM |
906 | \f |
907 | * Lisp Changes in Emacs 23.1 | |
8ab314f9 | 908 | |
b350bdf2 CY |
909 | +++ |
910 | ** New variable `user-emacs-directory'. | |
911 | Use this instead of "~/.emacs.d". | |
43f8b275 | 912 | |
b350bdf2 CY |
913 | ** If a local hook function has a non-nil `permanent-local-hook' |
914 | property, `kill-all-local-variables' does not remove it from the local | |
915 | value of the hook variable; it remains even if you change major modes. | |
09e18d03 | 916 | |
b350bdf2 CY |
917 | ** `frame-inherited-parameters' lets new frames inherit parameters from |
918 | the selected frame. | |
09e18d03 | 919 | |
b350bdf2 CY |
920 | ** New keymap `input-decode-map' overrides like key-translation-map, but |
921 | applies before function-key-map. Also it is terminal-local contrary to | |
922 | key-translation-map. Terminal-specific key-sequences are generally added to | |
923 | this map rather than to function-key-map now. | |
09e18d03 | 924 | |
b350bdf2 | 925 | ** `ignore-errors' is now a standard macro (does not require the CL package). |
09e18d03 | 926 | |
b350bdf2 CY |
927 | ** `interprogram-paste-function' can now return one string or a list |
928 | of strings. In the latter case, Emacs puts the second and following | |
929 | strings on the kill ring. | |
09e18d03 | 930 | |
b350bdf2 CY |
931 | +++ |
932 | ** In `condition-case', a handler can specify "let the debugger run first". | |
933 | You do this by writing `debug' in the list of conditions to be handled, | |
934 | like this: | |
09e18d03 | 935 | |
b350bdf2 CY |
936 | (condition-case nil |
937 | (foo bar) | |
938 | ((debug error) nil)) | |
09e18d03 | 939 | |
b350bdf2 | 940 | ** clone-indirect-buffer now runs the clone-indirect-buffer-hook. |
09e18d03 | 941 | |
b350bdf2 CY |
942 | ** `beginning-of-defun-function' now takes one argument, the count |
943 | given to `beginning-of-defun'. | |
09e18d03 | 944 | |
b350bdf2 CY |
945 | +++ |
946 | ** `file-remote-p' has new optional parameters IDENTIFICATION and CONNECTED. | |
947 | IDENTIFICATION specifies which part of the remote identifier has to be | |
948 | returned. With CONNECTED passed non-nil, it is checked whether a | |
949 | remote connection has been established already. | |
09e18d03 | 950 | |
b350bdf2 CY |
951 | ** The new macro `declare-function' suppresses compiler warnings about |
952 | undefined functions. | |
a1562258 | 953 | |
b350bdf2 | 954 | ** Changes to interactive function handling |
8ba31f36 | 955 | |
b350bdf2 CY |
956 | *** The new interactive spec code ^ says to first call |
957 | handle-shift-selection if shift-select-mode is non-nil, before reading | |
958 | the command arguments. This is used for shift-selection (see above). | |
e2947429 | 959 | |
b350bdf2 CY |
960 | *** Built-in functions can now have an interactive specification that |
961 | is not a prompt string. If the `intspec' parameter of a `DEFUN' | |
962 | starts with a `(', the string is evaluated as a Lisp form. | |
e2947429 | 963 | |
b350bdf2 CY |
964 | *** The interactive-form of a function can be added post-facto via the |
965 | `interactive-form' symbol property. Mostly useful to add complex | |
966 | interactive forms to subroutines. | |
d87be1df | 967 | |
b350bdf2 | 968 | ** Region changes |
3ae459e5 | 969 | |
b350bdf2 CY |
970 | *** Commands should use `use-region-p' to test whether there is |
971 | an active region that they should operate on. | |
3ae459e5 | 972 | |
b350bdf2 CY |
973 | *** `region-active-p' returns non-nil when Transient Mark mode is |
974 | enabled and there is an active region. This is NOT the best function | |
975 | to use to test whether a command should operate on the region instead | |
976 | of the usual behavior -- for that, use `use-region-p'. | |
58555d81 | 977 | |
b350bdf2 CY |
978 | *** If a command sets `transient-mark-mode' to (only . OLDVAL), that |
979 | means to activate transient-mark-mode temporarily, until the next | |
980 | unshifted point motion command or mark deactivation. Afterwards, | |
981 | reset transient-mark-mode to the value OLDVAL. The values `only' and | |
982 | `identity', introduced in Emacs 22, are now deprecated. | |
e5c4079c | 983 | |
b350bdf2 | 984 | ** Emacs session information |
13cda5f9 | 985 | |
b350bdf2 CY |
986 | *** The new variables `before-init-time' and `after-init-time' record the |
987 | value of `current-time' before and after Emacs loads the init files. | |
a2bc5bdd | 988 | |
b350bdf2 | 989 | *** The new function `emacs-uptime' returns the uptime of an Emacs instance. |
d82c3d44 | 990 | |
b350bdf2 CY |
991 | *** The new function `emacs-init-time' returns the duration of the |
992 | Emacs initialization. | |
50bfa18a | 993 | |
b350bdf2 | 994 | ** Changes affecting display-buffer |
39d0bf74 | 995 | |
b350bdf2 CY |
996 | *** New value nil for split-height-threshold inhibits vertical splitting |
997 | unless there's no other window. | |
59b5d020 | 998 | |
b350bdf2 | 999 | *** New option split-width-threshold controls horizontal splitting. |
426e6ba0 | 1000 | |
b350bdf2 | 1001 | *** A window can be split horizontally even when it's not full-width. |
426e6ba0 | 1002 | |
b350bdf2 CY |
1003 | *** New option split-window-preferred-function can be set to a function |
1004 | to override the default splitting mechanism of display-buffer. | |
2d105adf | 1005 | |
b350bdf2 | 1006 | ** Minibuffer and completion changes |
b9694062 | 1007 | +++ |
b350bdf2 | 1008 | *** A list of default values can be specified for the DEFAULT argument of |
b9694062 JL |
1009 | functions `read-from-minibuffer', `read-string', `read-command', |
1010 | `read-variable', `read-buffer', `completing-read'. Elements of this list | |
1011 | are available for inserting into the minibuffer by typing `M-n'. | |
1012 | For empty input these functions return the first element of this list. | |
1013 | ||
90993beb JL |
1014 | *** New function `read-regexp' uses the regexp history and some useful |
1015 | regexp defaults (string at point, last isearch/replacement regexp/string) | |
1016 | via M-n when reading a regexp in the minibuffer. | |
1017 | ||
b350bdf2 CY |
1018 | *** minibuffer-local-must-match-filename-map is now named |
1019 | minibuffer-local-filename-must-match-map. | |
66dc1ca2 | 1020 | |
b350bdf2 CY |
1021 | *** `all-completions' may now return the base size in the last cdr. |
1022 | Since this means the returned list is not properly nil-terminated, this | |
1023 | is an incompatible change and is thus enabled by the new variable | |
1024 | completion-all-completions-with-base-size. | |
66dc1ca2 | 1025 | |
b350bdf2 CY |
1026 | *** The `require-match' argument to `completing-read' accepts a new value |
1027 | `confirm-only'. | |
d03b9b31 | 1028 | |
b350bdf2 CY |
1029 | ** Search and replacement changes |
1030 | +++ | |
1031 | *** The regexp form \(?<num>:<regexp>\) specifies the group number explicitly. | |
1032 | +++ | |
1033 | *** New function `match-substitute-replacement' returns the result of | |
1034 | `replace-match' without actually using it in the buffer. | |
c60d543d | 1035 | |
b350bdf2 CY |
1036 | *** The new variable `replace-search-function' determines the function |
1037 | to use for searching in query-replace and replace-string. | |
3ae459e5 | 1038 | |
b350bdf2 CY |
1039 | *** The new variable `replace-re-search-function' determines the |
1040 | function to use for searching in `query-replace-regexp', | |
1041 | `replace-regexp', `query-replace-regexp-eval', and | |
1042 | `map-query-replace-regexp'. | |
4f4a84ec | 1043 | |
b350bdf2 CY |
1044 | *** The variable `inhibit-changing-match-data', if non-nil, prevents |
1045 | the search and match primitives from changing the match data. | |
967b2682 | 1046 | |
b350bdf2 | 1047 | ** File handling changes |
8bf5c8a6 | 1048 | |
b350bdf2 CY |
1049 | *** set-file-modes is now interactive and can take the mode value in |
1050 | symbolic notation thanks to auxiliary functions. | |
d9774611 | 1051 | |
b350bdf2 CY |
1052 | *** If you set find-file-confirm-nonexistent-file to t, then C-x C-f |
1053 | requires confirmation before opening a non-existent file. | |
1054 | ||
1055 | ** Process changes | |
1056 | +++ | |
1057 | *** The new function `start-file-process' is similar to `start-process', | |
1058 | but obeys file handlers. The file handler is chosen based on | |
1059 | `default-directory'. The functions `start-file-process-shell-command' | |
1060 | and `process-file-shell-command' are also new; they call internally | |
1061 | `start-file-process' and `process-file', respectively. | |
1062 | ||
1063 | *** The new function `process-lines' executes an external program and | |
1064 | returns its output as a list of lines. | |
63571b5a | 1065 | |
d82c3d44 GM |
1066 | ** Character code, representation, and charset changes. |
1067 | ||
0caa490b | 1068 | The character code space is now 0x0..0x3FFFFF with no gap. |
d82c3d44 GM |
1069 | Characters of code 0x0..0x10FFFF are Unicode characters of the same code points. |
1070 | Characters of code 0x3FFF80..0x3FFFFF are raw 8-bit bytes. | |
1071 | ||
0caa490b | 1072 | Generic characters no longer exist. |
d82c3d44 | 1073 | |
b350bdf2 CY |
1074 | In buffers and strings, characters are represented by UTF-8 byte |
1075 | sequences in a multibyte buffer/string. | |
d82c3d44 | 1076 | |
b350bdf2 CY |
1077 | The concept of a charset has changed. A single character may belong |
1078 | to multiple charsets (e.g. a-grave, U+00E0, belongs to charsets | |
1079 | unicode, iso-8859-1, iso-8859-3, etc). | |
d82c3d44 GM |
1080 | |
1081 | *** The functions `encode-char' and `decode-char' now accept any character sets. | |
1082 | ||
1083 | *** The function `define-charset' now accepts a completely different | |
1084 | form of arguments (old-style arguments still work). | |
1085 | ||
d82c3d44 GM |
1086 | *** The value of the function `char-charset' depends on the current |
1087 | priorities of charsets. | |
1088 | ||
d82c3d44 GM |
1089 | *** The function get-char-code-property now accepts many Unicode base |
1090 | character properties. They are `name', `general-category', | |
1091 | `canonical-combining-class', `bidi-class', `decomposition', | |
1092 | `decimal-digit-value', `digit-value', `numeric-value', `mirrored', | |
1093 | `old-name', `iso-10646-comment', `uppercase', `lowercase', and | |
1094 | `titlecase'. | |
1095 | ||
b350bdf2 CY |
1096 | *** The functions `modify-syntax-entry' and `modify-category-entry' now |
1097 | accept a cons of characters as the first argument, and modify all | |
1098 | entries in that range of characters. | |
d82c3d44 | 1099 | |
b350bdf2 CY |
1100 | +++ |
1101 | *** `translation-table-for-input' is now obsolete. | |
d82c3d44 | 1102 | |
b350bdf2 | 1103 | *** New functions: |
d82c3d44 | 1104 | |
b350bdf2 CY |
1105 | **** `characterp' returns t if and only if the argument is a character. |
1106 | This replaces `char-valid-p', which is now obsolete. | |
d82c3d44 | 1107 | |
b350bdf2 | 1108 | **** `max-char' returns the maximum character code (currently #x3FFFFF). |
d82c3d44 | 1109 | |
b350bdf2 CY |
1110 | **** `define-charset-alias' defines an alias of a charset. |
1111 | ||
1112 | **** `set-charset-priority' sets priorities of charsets. | |
1113 | ||
1114 | **** `charset-priority-list' returns a prioritized list of charsets. | |
1115 | ||
1116 | **** `unibyte-string' makes a unibyte string from bytes. | |
1117 | ||
1118 | **** `define-char-code-property' defines a character code property. | |
1119 | ||
1120 | **** `char-code-property-description' returns the description string of | |
1121 | a character code property. | |
1122 | ||
1123 | *** New variables: | |
1124 | ||
1125 | **** `find-word-boundary-function-table' is a char-table of functions to | |
1126 | search for a word boundary. | |
1127 | ||
1128 | **** `char-script-table' is a char-table of script names. | |
1129 | ||
1130 | **** `char-width-table' is a char-table of character widths. | |
1131 | ||
1132 | **** `print-charset-text-property' controls how to handle `charset' text | |
1133 | property on printing a string. | |
1134 | ||
1135 | **** `printable-chars' is a char-table of printable characters. | |
d82c3d44 | 1136 | |
505d8756 | 1137 | ** Code conversion changes |
d82c3d44 GM |
1138 | |
1139 | *** The new function `define-coding-system' should be used to define a | |
1140 | coding system instead of `make-coding-system' (which is now obsolete). | |
1141 | ||
1142 | *** The functions `encode-coding-region' and `decode-coding-region' | |
1143 | have an optional 4th argument to specify where the result of | |
1144 | conversion should go. | |
1145 | ||
1146 | *** The functions `encode-coding-string' and `decode-coding-string' | |
1147 | have an optional 4th argument specifying a buffer to store the result | |
1148 | of conversion. | |
1149 | ||
b350bdf2 | 1150 | *** The functions `set-coding-priority' and `make-coding-system' are obsolete. |
d82c3d44 | 1151 | |
b350bdf2 | 1152 | *** New functions: |
d82c3d44 | 1153 | |
b350bdf2 CY |
1154 | **** `with-coding-priority' executes Lisp code using the specified |
1155 | coding system priority order. | |
d82c3d44 | 1156 | |
b350bdf2 CY |
1157 | **** `check-coding-systems-region' checks if the text in the region is |
1158 | encodable by the specified coding systems. | |
d82c3d44 | 1159 | |
b350bdf2 | 1160 | **** `coding-system-aliases' returns a list of aliases of a coding system. |
d82c3d44 | 1161 | |
b350bdf2 CY |
1162 | **** `coding-system-charset-list' returns a list of charsets supported |
1163 | by a coding system. | |
d82c3d44 | 1164 | |
b350bdf2 CY |
1165 | **** `coding-system-priority-list' returns a list of coding systems |
1166 | ordered by their priorities. | |
1167 | ||
1168 | **** `set-coding-system-priority' sets priorities of coding systems. | |
d82c3d44 GM |
1169 | |
1170 | ** There is a new input method, Robin, different from Quail. | |
0caa490b | 1171 | It has three functionalities: |
d82c3d44 GM |
1172 | i) a simple input method (converts an ASCII sequence into a string). |
1173 | ii) converts an existing buffer substring into another string | |
1174 | iii) reverse conversion (each character produced by a | |
1175 | robin rule can hold the original ASCII sequence as a char-code-property) | |
1176 | ||
1177 | *** The new function `robin-define-package' defines a Robin package. | |
1178 | ||
1179 | *** The new function `robin-modify-package' modifies an existing Robin package. | |
1180 | ||
1181 | *** The new function `robin-use-package' starts using a Robin package | |
1182 | as an input method. | |
1183 | ||
888d7d86 KH |
1184 | *** The new function `string-to-unibyte' is like `string-as-unibyte' |
1185 | but signals an error if STRING contains a non-ASCII, non-eight-bit | |
1186 | character. | |
1187 | ||
505d8756 | 1188 | ** Changes related to the new font backend |
2b7a2553 | 1189 | |
b19aa6dd GM |
1190 | Which font backends to use can be specified by the X resource "FontBackend". |
1191 | For instance, to use both X core fonts and Xft fonts: | |
2b7a2553 | 1192 | |
b19aa6dd | 1193 | Emacs.FontBackend: x,xft |
2b7a2553 | 1194 | |
b19aa6dd GM |
1195 | If this resource is not set, Emacs tries to use all font backends |
1196 | available on your graphic device. | |
d82c3d44 GM |
1197 | |
1198 | *** New frame parameter `font-backend' specifies a list of | |
1199 | font-backends supported by the frame's graphic device. On X, they are | |
1200 | currently `x' and `xft'. | |
1201 | ||
b350bdf2 CY |
1202 | *** The function `set-fontset-font' now accepts a script name as the |
1203 | second argument, and has an optional 5th argument to control how to | |
1204 | set the font. | |
d82c3d44 | 1205 | |
b350bdf2 | 1206 | *** New functions: |
d82c3d44 | 1207 | |
b350bdf2 | 1208 | **** `fontp' checks if the argument is a font-spec or font-entity. |
d82c3d44 | 1209 | |
b350bdf2 | 1210 | **** `font-spec' creates a new font-spec object. |
d54b8954 | 1211 | |
b350bdf2 | 1212 | **** `font-get' returns a font property value. |
d82c3d44 | 1213 | |
b350bdf2 | 1214 | **** `font-put' sets a font property value. |
d82c3d44 | 1215 | |
b350bdf2 | 1216 | **** `font-face-attributes' returns a plist of face attributes set by a font. |
d82c3d44 | 1217 | |
b350bdf2 | 1218 | **** `list-fonts' returns a list of font-entities matching a font spec. |
d82c3d44 | 1219 | |
b350bdf2 | 1220 | **** `font-font' returns the font-entity best matching the given font spec. |
d82c3d44 | 1221 | |
b350bdf2 | 1222 | **** `list-families' returns a list of family names of available fonts. |
d82c3d44 | 1223 | |
b350bdf2 CY |
1224 | **** `font-xlfd-name' returns an XLFD name of a given font spec, font |
1225 | entity, or font object. | |
1226 | ||
1227 | **** `clear-font-cache' clears all font caches. | |
d82c3d44 | 1228 | |
b350bdf2 | 1229 | ** Changes related to multiple-terminal (multi-tty) support |
24cdde13 | 1230 | |
b12f6e85 SM |
1231 | *** $TERM is now set to `dumb' for subprocesses. If you want to know the |
1232 | $TERM inherited by Emacs you will have to look inside initial-environment. | |
1233 | ||
6168122d SM |
1234 | *** $DISPLAY is now dynamically inherited from the frame's `display'. |
1235 | ||
b350bdf2 | 1236 | *** The `window-system' variable is now frame-local. The new |
24cdde13 | 1237 | `initial-window-system' variable contains the `window-system' value |
bbe3eb99 GM |
1238 | for the first frame. `window-system' is also now a function that |
1239 | takes a frame argument. | |
24cdde13 | 1240 | |
b350bdf2 CY |
1241 | *** The `keyboard-translate-table' variable and the terminal and |
1242 | keyboard coding systems are now terminal-local. | |
1243 | ||
24cdde13 GM |
1244 | *** You can specify a terminal device (`tty' parameter) and a terminal |
1245 | type (`tty-type' parameter) to `make-terminal-frame'. | |
1246 | ||
24cdde13 GM |
1247 | *** The function `make-frame-on-display' now works during a tty |
1248 | session, and `make-frame-on-tty' works during a graphical session. | |
1249 | ||
419f8f49 SM |
1250 | *** A new data type for terminals with functions: `get-device-terminal', |
1251 | `terminal-parameters', `terminal-parameter', `set-terminal-parameter'. | |
24cdde13 | 1252 | |
b350bdf2 CY |
1253 | *** Function key sequences are now mapped using `local-function-key-map', |
1254 | a new variable. This inherits from the global variable function-key-map, | |
1255 | which is not used directly any more. | |
92cd6a7c | 1256 | |
b350bdf2 | 1257 | *** New hooks: |
da406961 | 1258 | |
b350bdf2 CY |
1259 | **** `suspend-tty-functions' and `resume-tty-functions' are called |
1260 | after a tty frame has been suspended or resumed, respectively. The | |
1261 | functions are called with the terminal id of the frame being | |
1262 | suspended/resumed as a parameter. | |
da406961 | 1263 | |
b350bdf2 CY |
1264 | **** The special hook `delete-terminal-functions' is called before |
1265 | deleting a terminal. | |
82866ad5 | 1266 | |
b350bdf2 | 1267 | *** New functions: |
24cdde13 | 1268 | |
b350bdf2 | 1269 | **** `environment' |
24cdde13 | 1270 | |
b350bdf2 | 1271 | **** `make-frame-on-tty' creates a new frame on another tty device. |
24cdde13 | 1272 | |
b350bdf2 | 1273 | **** `delete-tty' |
9f44d41a | 1274 | |
b350bdf2 | 1275 | **** `suspend-tty' |
ea2e3ef4 | 1276 | |
b350bdf2 | 1277 | **** `resume-tty'. |
8d371994 | 1278 | |
b350bdf2 | 1279 | *** `initial-environment' holds the environment inherited from Emacs's parent. |
8d371994 | 1280 | |
b350bdf2 | 1281 | ** Redisplay changes |
8d371994 | 1282 | |
b350bdf2 CY |
1283 | *** For underlined characters, the distance between the underline and |
1284 | the baseline is controlled by a new variable, `underline-minimum-offset'. | |
0a963185 | 1285 | |
b350bdf2 CY |
1286 | *** You can now pass the value of the `invisible' property to |
1287 | invisible-p to check whether it would cause the text to be invisible. | |
1288 | Convenient when checking invisibility of text with no buffer position | |
1289 | (e.g. in before/after-strings). | |
c69b0314 | 1290 | |
b350bdf2 | 1291 | *** Non-breaking space is now displayed as whitespace. |
9f44d41a | 1292 | |
b350bdf2 | 1293 | *** `clear-image-cache' can be told to flush only images of a specific file. |
9f44d41a | 1294 | |
0c8b58e9 CY |
1295 | *** `vertical-motion' can now be given a goal column. |
1296 | It now accepts a cons cell (COLS . LINES) in its first argument, which | |
1297 | says to stop, where possible, at a pixel x-position equal to COLS | |
1298 | times the default column width. | |
1299 | ||
b350bdf2 | 1300 | ** Miscellaneous new functions |
9f44d41a | 1301 | |
b350bdf2 CY |
1302 | *** `format-seconds' converts a number of seconds into a readable |
1303 | string of days, hours, etc. | |
9f44d41a | 1304 | |
b350bdf2 | 1305 | *** `apply-partially' performs a "curried" application of a function. |
abf13a8b | 1306 | |
b350bdf2 CY |
1307 | *** `read-shell-command' does what its name says, with completion. It |
1308 | uses the minibuffer-local-shell-command-map for that. | |
b2b387f9 | 1309 | |
b350bdf2 CY |
1310 | *** `buffer-swap-text' swaps text between two buffers. This can be |
1311 | useful for modes such as tar-mode, archive-mode, RMAIL. | |
967b2682 | 1312 | |
b350bdf2 CY |
1313 | *** `read-color' reads a color name using the minibuffer. |
1314 | ||
1315 | *** `face-all-attributes' returns an alist describing all the basic | |
1316 | attributes of a given face. | |
1317 | ||
1318 | *** `window-full-width-p' returns t if a window is as wide as its | |
1319 | frame. | |
1320 | ||
1321 | *** `split-string-and-unquote' does (what?) | |
1322 | ||
1323 | *** `combine-and-quote-strings' does (what?) | |
1324 | ||
1325 | *** `image-refresh' refreshes all images associated with a given image | |
1326 | specification. | |
64639e26 | 1327 | |
b350bdf2 | 1328 | *** The two new functions `looking-at-p' and `string-match-p' can do |
45595a4f RS |
1329 | the same matching as `looking-at' and `string-match' without changing |
1330 | the match data. | |
89835619 | 1331 | |
81efacf9 CY |
1332 | *** The two new functions `make-serial-process' and |
1333 | `serial-process-configure' provide a Lisp interface to the new serial | |
1334 | port support (see Emacs changes, above). | |
1335 | ||
b350bdf2 CY |
1336 | ** Miscellaneous new variables |
1337 | ||
1338 | *** `this-command-keys-shift-translated' is non-nil if the key | |
1339 | sequence invoking the current command was found by shift-translation. | |
1340 | ||
1341 | *** `window-point-insertion-type' determines the insertion-type of the | |
1342 | marker used for window-point. | |
1343 | ||
1344 | *** bookmark provides `bookmark-make-record-function' so special major | |
1345 | modes like Info can teach bookmark.el how to save and restore the | |
1346 | relevant data. | |
1347 | ||
1348 | *** `next-error-recenter' specifies how next-error should recenter the | |
1349 | visited source file. Its value can be a number (for example, 0 for | |
1350 | top line, -1 for bottom line), or nil for no recentering. | |
1351 | ||
1352 | *** `fill-forward-paragraph-function' specifies which function the | |
1353 | filling code should use to find paragraph boundaries. | |
1354 | ||
1355 | *** `custom-note-var-changed' tells Custom to treat the change in a | |
1356 | certain variable as having been made within Custom. | |
1357 | ||
9bae34bf | 1358 | \f |
0bfd685e | 1359 | * New Packages for Lisp Programming in Emacs 23.1 |
efeb796b | 1360 | |
b350bdf2 CY |
1361 | ** The new package avl-tree.el deals with the AVL tree data structure. |
1362 | ||
1363 | ** The new package check-declare.el verifies the accuracy of | |
1364 | declare-function macros (see Lisp Changes, above). | |
d445b3f8 | 1365 | |
20202f5e | 1366 | ** find-cmd.el can build `find' commands using lisp syntax. |
6dfcbe31 | 1367 | |
9097e8af RS |
1368 | ** The package isearch-multi.el has been added. It implements a new mode |
1369 | `isearch-buffers-minor-mode' that allows isearch to search through | |
1370 | multiple buffers. In this mode a new variable | |
1371 | `isearch-buffers-next-buffer-function' defines the function to call | |
1372 | to get the next buffer to search in the series of multiple buffers. | |
1373 | ||
b350bdf2 CY |
1374 | ** The new major mode `special-mode' is intended as a parent for |
1375 | major modes such as those that set the "'mode-class 'special" property. | |
d53a60a6 | 1376 | |
05197f40 | 1377 | \f |
a933dad1 | 1378 | ---------------------------------------------------------------------- |
5b87ad55 | 1379 | This file is part of GNU Emacs. |
a933dad1 | 1380 | |
ab73e885 | 1381 | GNU Emacs is free software: you can redistribute it and/or modify |
5b87ad55 | 1382 | it under the terms of the GNU General Public License as published by |
ab73e885 GM |
1383 | the Free Software Foundation, either version 3 of the License, or |
1384 | (at your option) any later version. | |
5b87ad55 GM |
1385 | |
1386 | GNU Emacs is distributed in the hope that it will be useful, | |
1387 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
1388 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
1389 | GNU General Public License for more details. | |
a933dad1 | 1390 | |
5b87ad55 | 1391 | You should have received a copy of the GNU General Public License |
ab73e885 | 1392 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
a933dad1 | 1393 | |
05197f40 | 1394 | \f |
a933dad1 DL |
1395 | Local variables: |
1396 | mode: outline | |
1397 | paragraph-separate: "[ \f]*$" | |
1398 | end: | |
ab5796a9 | 1399 | |
a533413c | 1400 | arch-tag: e759449d-88b3-4de4-9900-3a6c3dfa23e2 |