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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 GM |
29 | ** The default X toolkit is now Gtk+, rather than Lucid. |
30 | ||
1abe3a1e DN |
31 | ** The new configuration option "--with-dbus" enables D-Bus language |
32 | bindings for Emacs. | |
33 | ||
15f02f65 GM |
34 | ** The Mac Carbon port is no longer supported. |
35 | Instead, use... [what?] | |
36 | ||
9d3cc9b2 GM |
37 | ** configure now checks for libgif before libungif when searching for |
38 | a GIF library. | |
b5ac89f8 | 39 | |
36e625ec GM |
40 | ** Support for systems without alloca has been removed. |
41 | ||
07e5c0b0 DN |
42 | ** Support for Sun windows has been removed. |
43 | ||
bb9f7948 EZ |
44 | ** Support for many obsolete platforms has been removed. |
45 | See the list at the end of etc/MACHINES for details. | |
46 | ||
48a8be40 GM |
47 | ** The `emacstool' utility has been removed. |
48 | ||
a46ee55c GM |
49 | ** The configure options `--with-gcc', `--without-gcc' have been removed. |
50 | Configure will use gcc by default. Set the CC environment variable if | |
51 | you need control over which C compiler is used. | |
52 | ||
53 | ** The configure option `--with-gtk' has been removed. Gtk is now the | |
54 | default toolkit, but you can use --with-x-toolkit=gtk if necessary. | |
4e5cdb4f | 55 | \f |
6dadd99f NR |
56 | * Changes in Emacs 23.1 |
57 | ||
780d7bb9 | 58 | ** Emacs now supports using both X displays and ttys in one session. |
1abe3a1e DN |
59 | Start the server (M-x server-start). Then `emacsclient -t' creates a |
60 | tty frame connected to the running emacs server. You can also use any | |
61 | number of different ttys. `emacsclient -c' creates a new X11 frame on | |
62 | the current $DISPLAY or a tty frame if $DISPLAY is not set. | |
780d7bb9 RS |
63 | |
64 | You can test for the presence of this feature in your Lisp code by | |
65 | testing for the `multi-tty' feature. | |
66 | ||
7b476dbe JD |
67 | ** Emacs now supports the XEmbed specification. |
68 | You can embed Emacs in another application on X11. The new command line option | |
69 | --parent-id is used to pass the parent window id to Emacs. See | |
70 | http://standards.freedesktop.org/xembed-spec/xembed-spec-latest.html | |
71 | for details about XEmbed. | |
72 | ||
251ad2de TTN |
73 | ** Emacs comes with a new set of icons for Mac OS X. |
74 | OS-X-style icons (an application icon and a relevant document icon) | |
75 | were contributed by Kentaro Ohkouchi. | |
76 | Source files for these icons can be found in Emacs.app/Contents/Resources. | |
1518e9a1 | 77 | PNG versions are available as etc/images/icons/emacs*_mac.png. |
251ad2de | 78 | |
f664fee9 MC |
79 | ** Built-in functions (subr) can now have an interactive specification |
80 | that is not a prompt string. If the `intspec' parameter of a `DEFUN' | |
81 | starts with a `(', the string is evaluated as a Lisp form. | |
82 | ||
83 | ** set-file-modes is now interactive and can take the mode value in | |
84 | symbolic notation thanks to auxiliary functions. | |
85 | ||
90ab5c62 SM |
86 | ** split-window-preferred-function specifies whether display-buffer should |
87 | split windows vertically or horizontally. | |
88 | ||
24cdde13 GM |
89 | ** Emacsclient has been extended to support opening a new terminal |
90 | frame. Its behavior has been changed to open a new Emacs frame by | |
91 | default. Use the -c option to get the old behavior of opening files in | |
92 | the currently selected Emacs frame. | |
93 | ||
c0dadae9 MC |
94 | ** The refcards are now shipped as PDF files. |
95 | ||
795a2a94 GM |
96 | ** Emacs now supports the SVG image format through librsvg2. |
97 | ||
75f6af19 | 98 | ** If you set find-file-confirm-nonexistent-file to t, then C-x C-f |
0a963185 SM |
99 | requires confirmation before opening a non-existent file. |
100 | ||
6dadd99f NR |
101 | ** If the gpm mouse server is running and t-mouse-mode enabled, Emacs uses a |
102 | Unix socket in a GNU/Linux console to talk to server, rather than faking events | |
103 | using the client program mev. This C level approach provides mouse | |
104 | highlighting, and help echoing in the minibuffer. | |
105 | ||
c2e8590b TTN |
106 | ** The new variable next-error-recenter specifies how next-error should |
107 | recenter the visited source file. Its value can be a number (for example, | |
108 | 0 for top line, -1 for bottom line), or nil for no recentering. | |
109 | ||
1abe3a1e DN |
110 | ** New command recenter-top-bottom moves the current line to window |
111 | center, top and bottom on successive invokations. | |
112 | ||
eb28688c GM |
113 | ** C-l is bound to the new command recenter-top-bottom, rather than recenter. |
114 | ||
d87b5ced | 115 | ** The mode-line displays a `@' if the default-directory for the current buffer |
1f2e1c75 | 116 | is on a remote machine, or a hyphen otherwise. |
6c5d503f | 117 | |
c9447ae1 GM |
118 | ** The mode-line displays a mode menu when mouse-1 is clicked on a minor mode, |
119 | in the same way as it already did for major modes. | |
120 | ||
de3054d5 | 121 | ** The new command balance-windows-area balances windows both vertically |
62e3c31f | 122 | and horizontally. |
d466e9fc SM |
123 | |
124 | ** The new command close-display-connection can be used to close a connection | |
125 | to a remote display, e.g. because the display is about to become unreachable. | |
6c5d503f MA |
126 | |
127 | ** The command shell prompts for the default directory, when it is | |
128 | called with a prefix, and the default directory is a remote file name. | |
de3054d5 | 129 | This is because some file name handlers (like ange-ftp) are not able to |
6c5d503f | 130 | run processes remotely. |
aff2ba04 RS |
131 | |
132 | ** The new command `display-time-world' starts an updating time display | |
133 | using several time zones, in a buffer. | |
c4c9b6f9 | 134 | |
5c4a15b3 GM |
135 | ** The new function `format-seconds' converts a number of seconds into a |
136 | readable string of days, hours, etc. | |
137 | ||
790df309 GM |
138 | ** The new variable `before-init-time' records the value of `current-time' |
139 | when Emacs begins initialization. | |
c4c9b6f9 GM |
140 | |
141 | ** The new function `emacs-uptime' returns the uptime of an Emacs instance. | |
142 | ||
6dadd99f | 143 | \f |
0bfd685e | 144 | * Startup Changes in Emacs 23.1 |
21f7b9d8 | 145 | |
56e1896b JL |
146 | ** New user option `initial-buffer-choice' specifies what to display |
147 | after starting Emacs: startup screen, *scratch* buffer, visiting a | |
148 | file or directory. | |
149 | ||
aa5310e4 DK |
150 | ** New alias `argv' for `command-line-args-left' |
151 | This is a convenience alias, so that one can write `(pop argv)' | |
152 | inside of --eval command line arguments in order to access | |
153 | following arguments. | |
f8fd7ed3 GM |
154 | |
155 | ** The abbrev file is no longer read at startup in batch mode. | |
c44da964 | 156 | \f |
0bfd685e | 157 | * Incompatible Editing Changes in Emacs 23.1 |
b58cb59f | 158 | |
117907d4 JL |
159 | +++ |
160 | ** In Dired-x, all command guesses for ! are now added to the default | |
161 | list accessible by M-n instead of pushing all guesses temporarily into | |
162 | the history list. | |
163 | ||
406c0f12 | 164 | \f |
0bfd685e | 165 | * Editing Changes in Emacs 23.1 |
406c0f12 | 166 | |
59b5d020 JL |
167 | +++ |
168 | ** C-M-% now shows replacement as it would look in the buffer, with | |
169 | `\N' and `\&' substituted according to the match. Old behavior can be | |
170 | restored by customizing `query-replace-show-replacement'. | |
171 | ||
1ac03a31 JL |
172 | +++ |
173 | ** M-q now fills the region if the region is active and | |
174 | `transient-mark-mode' is turned on. Otherwise, it fills the current | |
ecde850a | 175 | paragraph. |
1ac03a31 | 176 | |
ecde850a | 177 | +++ |
dc868f13 JL |
178 | ** M-$ now checks spelling of the region if the region is active and |
179 | `transient-mark-mode' is turned on. Otherwise, it checks spelling of the | |
180 | word at point. | |
181 | ||
6dd697d9 DN |
182 | ** TAB now indents the region if the region is active and |
183 | `transient-mark-mode' is turned on. | |
184 | ||
d03b9b31 RS |
185 | ** `use-empty-active-region' controls whether an empty active region |
186 | in Transient Mark mode should make commands operate on that empty region. | |
187 | ||
24cdde13 GM |
188 | ** C-z now invokes `suspend-frame', C-x C-c now invokes |
189 | `save-buffers-kill-terminal'. | |
190 | ||
a151f82c SS |
191 | ** New command kill-matching-buffers kills buffers whose name matches a regexp. |
192 | ||
63571b5a RS |
193 | ** You can disable kill ring commands from accessing the primary selection |
194 | by setting `x-select-enable-primary' to nil. | |
195 | ||
196 | ** If `select-active-regions' is t, setting the mark automatically | |
197 | makes the new region into the primary selection (for interaction with | |
198 | other window applications). If you enable this, you might want to bind | |
199 | `mouse-yank-primary' to Mouse-2. | |
539f5bda | 200 | |
4496b02b RS |
201 | ** If `yank-pop-change-selection' is t, rotating the kill ring |
202 | also updates the selection or clipboard to the current yank, | |
203 | just as M-w would do so with the text it copies to the kill ring. | |
204 | ||
297b8ccd JL |
205 | ** Minibuffer changes: |
206 | ||
dc2f6c05 JL |
207 | *** In C-x d, if you type M-n you get the visited file name of the |
208 | current buffer. | |
209 | ||
117907d4 JL |
210 | *** In Dired, a list of commands for ! extracted from mailcap according to |
211 | file extensions are added to the default list accessible by M-n. | |
212 | ||
213 | *** A list of regexp default values is available via M-n for `occur', | |
214 | `keep-lines', `flush-lines' and `how-many'. This list includes the active | |
215 | region in transient-mark-mode, the word under the cursor, the last isearch | |
216 | regexp, the last isearch string and the last replacement regexp. | |
217 | ||
297b8ccd JL |
218 | *** isearch started in the minibuffer searches in the minibuffer history. |
219 | Reverse isearch commands (C-r, C-M-r) search in previous minibuffer | |
220 | history elements, and forward isearch commands (C-s, C-M-s) search in | |
221 | next history elements. When the reverse search reaches the first history | |
222 | element, it wraps to the last history element, and the forward search | |
223 | wraps to the first history element. When the search is terminated, the | |
224 | history element containing the search string becomes the current. | |
225 | ||
0bfd685e GM |
226 | \f |
227 | * New Modes and Packages in Emacs 23.1 | |
0091c67e | 228 | |
2e282009 GM |
229 | ** FIXME add details of new packages imported from lisp/gnus. |
230 | ||
1816bda7 MC |
231 | ** The package doc-view.el has been added. It supports viewing of PDF, |
232 | PostScript and DVI documents inside an Emacs buffer by converting the | |
233 | document to a set of PNG images first. One can also search for a | |
234 | regular expression in the document. The commentary of the file explains | |
235 | its usage. | |
236 | ||
a2e0b5dd GM |
237 | ** The nXML package has been added. |
238 | [FIXME someone who uses this, please write a brief description.] | |
239 | ||
ddc961c5 | 240 | ** A new game called `bubbles' has been added. |
a0818148 | 241 | |
dcd6e8d7 | 242 | ** minibuffer-indicate-depth-mode shows the minibuffer depth in the prompt. |
3f7194ed | 243 | |
15f3eb73 MO |
244 | ** Remember Mode (remember.el) is now included with Emacs. It is a |
245 | mode for quickly jotting down things to remember. Included with | |
246 | remember.el is a backend that can save notes to a Diary file. Please | |
247 | consult the Remember Manual for usage details. | |
248 | ||
9264ee6a MA |
249 | ** D-Bus language bindings for Elisp are provided by the package |
250 | dbus.el and by extensions to the C modules of Emacs. D-Bus is an | |
251 | inter-process communication mechanism for applications residing on the | |
252 | same host, based on messages. See the manual for further details. | |
c154c0be | 253 | |
c6588a85 MO |
254 | ** EasyPG is now part of the Emacs distribution. It is an all-in-one |
255 | GnuPG interface which includes GnuPG keyring browser, cryptographic | |
256 | operations on regions and files, and automatic encryption of *.gpg | |
257 | files. See the EasyPG Assistant User's Manual for further details. | |
0bfd685e GM |
258 | \f |
259 | * Changes in Specialized Modes and Packages in Emacs 23.1 | |
61d244ca | 260 | |
e8cbfb8d DN |
261 | ** ChangeLog now has function bound to C-c C-f that finds the file in |
262 | the current log entry. | |
263 | ||
e047f448 SM |
264 | ** abbrev was rewritten in Elisp and extended with more flexibility. |
265 | *** New functions: abbrev-get, abbrev-put, abbrev-table-get, abbrev-table-put, | |
266 | abbrev-table-p. | |
267 | *** Special hook `abbrev-expand-functions' obsoletes `pre-abbrev-expand-hook'. | |
268 | *** `make-abbrev-table', `define-abbrev', `define-abbrev-table' all take | |
269 | extra arguments for arbitrary properties. | |
270 | *** New variable `abbrev-minor-mode-table-alist'. | |
271 | *** `local-abbrev-table' can hold a list of abbrev-tables. | |
272 | *** Abbrevs have now the following special properties: | |
79415279 | 273 | `:count', `:system', `:enable-function', `:case-fixed'. |
e047f448 SM |
274 | *** Abbrev-tables have now the following special properties: |
275 | `:parents', `:case-fixed', `:enable-function', `:regexp', | |
276 | `abbrev-table-modiff'. | |
277 | ||
0253fffa MR |
278 | ** Help mode. |
279 | *** New macro `with-help-window' should set up help windows better | |
280 | than `with-output-to-temp-buffer' with `print-help-return-message'. | |
281 | *** New option `help-window-select' permits to customize whether help | |
282 | window shall be automatically selected when invoking help. | |
283 | *** New variable `help-window-point-marker' permits to specify new | |
b0d2d4e8 | 284 | position of point in help window (for example in `view-lossage'). |
0253fffa MR |
285 | |
286 | ** view-remove-frame-by-deleting is now by default t | |
b0d2d4e8 | 287 | since users found iconification of view-mode frames distracting. |
0253fffa | 288 | |
bafbec39 JL |
289 | ** Isearch mode |
290 | ||
291 | *** New command `isearch-occur' bound to `M-s o' in isearch mode | |
292 | runs `occur' with the current search string. | |
293 | ||
294 | *** isearch can now search through multiple ChangeLog files. | |
12bbb989 JL |
295 | When running isearch in a ChangeLog file, if the search fails, |
296 | then another C-s tries searching the previous ChangeLog, | |
297 | if there is one (e.g. go from ChangeLog to ChangeLog.12). | |
298 | ||
9097e8af RS |
299 | This is enabled if isearch-buffers-multi is non-nil. |
300 | ||
c3bb6fdb SM |
301 | ** smerge-refine highlights word-level details of changes in conflict. |
302 | It's used automatically as you move through conflicts, see smerge-auto-refine. | |
303 | ||
25e50a58 DN |
304 | ** Diff mode |
305 | ||
306 | *** diff-refine-hunk highlights word-level details of changes in a diff hunk. | |
307 | It's used automatically as you move through hunks, see | |
308 | diff-auto-refine. It is bound to `C-c C-b'. | |
309 | ||
e7940cb5 DN |
310 | *** diff-add-change-log-entries-other-window iterates through the diff |
311 | buffer and tries to create ChangeLog entries for each change. | |
312 | It is bound to `C-x 4 A'. | |
c3bb6fdb | 313 | |
e6a01e4e | 314 | ** archive-mode has basic support to browse Rar archives. |
c3bb6fdb | 315 | |
24cdde13 GM |
316 | ** talk.el has been extended for multiple tty support. |
317 | ||
813fb3fe SM |
318 | ** compilation-auto-jump-to-first-error tells `compile' to jump to |
319 | the first error encountered during compilations. | |
320 | ||
b68769f2 | 321 | ** In the `copyright' package, you can specify your copyright holders' names. |
b649d2e4 SM |
322 | Only copyright lines with holders matching copyright-names-regexp will be |
323 | considered for update. | |
324 | ||
e7ce8577 GM |
325 | ** eldoc highlights the function argument under point |
326 | with the face `eldoc-highlight-function-argument'. | |
327 | ||
ef6d86b5 MR |
328 | ** hide-ifdef-mode permits to shadow ifdef-blocks instead of hiding them. |
329 | See option `hide-ifdef-shadow' and function `hide-ifdef-toggle-shadowing'. | |
330 | ||
b68769f2 | 331 | +++ |
8d5cc579 | 332 | ** defcustom accepts new keyword arguments, `:safe' and `:risky', which |
b68769f2 GM |
333 | set a variable's `safe-local-variable' and `risky-local-variable' property. |
334 | ||
b0d2d4e8 FP |
335 | ** Etags changes. |
336 | *** The --members option is now the default. | |
337 | ||
338 | Use --no-members if you want the old default behaviour of not tagging | |
339 | struct members in C, members variables in C++ and variables in PHP. | |
340 | ||
56dada42 | 341 | ** VC |
397c4757 DN |
342 | *** Clicking on the VC mode-line entry now pops the VC menu. |
343 | ||
9372a958 | 344 | *** The VC mode-line entry now has a tooltip that explains the VC file status. |
cb223bba | 345 | |
082c5622 DN |
346 | *** VC now supports applying VC operations to a set of files at a time. |
347 | ||
4a11b6b5 ER |
348 | This enables VC to work much more effectively with changeset-oriented |
349 | version-control systems such as Subversion, GNU Arch, Mercurial, and | |
350 | Bzr. VC will now pass a multiple-file commit to these systems | |
351 | as a single changeset. | |
352 | ||
b58a65fa TTN |
353 | *** In VC Annotate mode, you can type V to toggle the annotation visibility. |
354 | ||
f3ff0fe9 DN |
355 | *** In VC Annotate mode, you can type f to show the file revision on |
356 | the current line. | |
357 | ||
93a142e1 DN |
358 | ** log-edit now has a command bound to C-c C-d to show the diff for |
359 | the files involved. | |
360 | ||
5d503af9 SM |
361 | ** sgml-electric-tag-pair-mode lets you simultaneously edit matched tag pairs. |
362 | ||
332de56f GM |
363 | ** The appearance of superscript and subscript in TeX is more customizable. |
364 | See the documentation of the variables: tex-fontify-script, | |
365 | tex-font-script-display, tex-suscript-height-ratio, and | |
366 | tex-suscript-height-minimum. | |
367 | ||
2793c9bb RW |
368 | ** BibTeX mode: |
369 | ||
c5578d5f RW |
370 | *** New command `bibtex-initialize' (re)initializes BibTeX buffers. |
371 | ||
2793c9bb RW |
372 | *** New `bibtex-entry-format' options `whitespace', `braces', and |
373 | `string', disabled by default. | |
374 | ||
375 | *** New variable `bibtex-cite-matcher-alist' contains rules to | |
0f3cd6b2 | 376 | identify cited keys in BibTeX entries, used by `bibtex-find-crossref'. |
2793c9bb | 377 | |
c5578d5f | 378 | *** Command `bibtex-url' allows multiple URLs per entry. |
2793c9bb | 379 | |
cc213f24 MA |
380 | +++ |
381 | ** Tramp | |
382 | ||
383 | *** New connection methods. | |
384 | The new methods "plinkx", "plink2", "psftp", "sftp" and "fish" have | |
385 | been introduced. There are also new so-called gateway methods | |
386 | "tunnel" and "socks". | |
387 | ||
388 | *** Multihop syntax has been removed. | |
389 | The pseudo-method "multi" has been removed. Instead of, multi hops | |
390 | can be specified by the new variable `tramp-default-proxies-alist'. | |
391 | ||
392 | *** More default settings. | |
393 | Default values can be set via the variables `tramp-default-user', | |
394 | `tramp-default-user-alist' and `tramp-default-host'. | |
395 | ||
396 | *** Connection information is cached. | |
397 | In order to reduce connection setup, information about used | |
398 | connections are kept persistent in a file. The name of this file is | |
399 | defined in the variable `tramp-persistency-file-name'. | |
400 | ||
401 | *** Control of remote processes. | |
402 | Running processes on a remote host can be controlled by settings in | |
403 | `tramp-remote-path' and `tramp-remote-process-environment'. | |
404 | ||
405 | *** Success of remote copy is checked. | |
406 | When the variable `file-precious-flag' is set, the success of a remote | |
407 | file copy is checked via the file's checksum. | |
408 | ||
d15f7b68 GM |
409 | ** Miscellaneous programming mode changes |
410 | ||
da26ea8d GM |
411 | *** The file etc/emacs.py now supports both Python 2 and 3, meaning |
412 | that either version can be used as inferior Python by python.el. | |
c3f01f42 | 413 | |
d15f7b68 GM |
414 | *** The variable `fortran-line-length' can change the fixed-form line-length. |
415 | ||
a9f480e8 GM |
416 | *** In Fortran mode, M-; is now bound to the standard comment-dwim, |
417 | rather than fortran-indent-comment. | |
418 | ||
b68769f2 GM |
419 | +++ |
420 | *** (The increasingly misnamed) F90 mode supports Fortran 2003 syntax. | |
2fb6c6be | 421 | |
cf944fa4 RS |
422 | ** Gnus package |
423 | ||
424 | *** The Gnus package has been updated | |
425 | ||
426 | *** There are many news features, bug fixes and improvements. | |
427 | ||
428 | See the file GNUS-NEWS or the node "No Gnus" in the Gnus manual for details. | |
429 | ||
d15f7b68 GM |
430 | ** Miscellaneous |
431 | ||
432 | *** comint-mode uses `start-file-process' now (see Lisp Changes). | |
cc213f24 MA |
433 | If `default-directory' is a remote file name, subprocesses are started |
434 | on the corresponding remote system. | |
435 | ||
d15f7b68 | 436 | *** C-x C-q in dired-mode now runs the command wdired-change-to-wdired-mode, |
40aa8257 JL |
437 | and C-x C-q in wdired-mode exits it with asking a question about |
438 | saving changes. | |
d15f7b68 | 439 | |
4596901f GM |
440 | *** The new command `eshell/info' runs info in an eshell buffer. |
441 | ||
1752e205 GM |
442 | *** The pcmpl-unix package supports hostname completion for ssh and scp. |
443 | ||
3cf86f00 GM |
444 | *** WoMan tries to add locale-specific manual page directories to the |
445 | search path. This can be disabled by setting `woman-locale' to nil. | |
446 | ||
4d1e89e3 GM |
447 | *** The new variable `ffap-rfc-directories' specifies a list of local |
448 | directories in which `ffap-rfc' will first search for RFCs. | |
449 | ||
0bfd685e GM |
450 | \f |
451 | * Changes in Emacs 23.1 on non-free operating systems | |
8ab314f9 | 452 | |
672f99b6 JR |
453 | --- |
454 | ** IPv6 is supported on MS-Windows. | |
455 | Emacs now supports IPv6 on Windows XP and later, and earlier versions | |
456 | of Windows with third party IPv6 stacks installed. Previously IPv6 was | |
457 | supported on other platforms, but not on Windows due to using the winsock | |
458 | 1.1 header file, even though Emacs was linking to the winsock 2 library. | |
459 | ||
3280c5c5 JR |
460 | ** More keys available on MS-Windows. |
461 | Keys normally associated with IMEs, and some exotic keys not normally found | |
462 | on standard keyboards have been given names so they can be bound to functions | |
463 | inside Emacs. If there are keys on your keyboard that have not been exposed | |
464 | to Emacs in the past, try C-h k to see if they are available now. | |
465 | ||
466 | Emacs can now bind functions to the extra buttons for media player and | |
467 | browser control present on some keyboards. These buttons are disabled | |
468 | by default, since enabling them prevents their system-wide use when | |
469 | Emacs has focus. To enable them, set the variable | |
470 | w32-pass-multimedia-buttons to nil. See the doc string of that variable | |
471 | for the list of extra keys that are available. | |
0bfd685e GM |
472 | \f |
473 | * Incompatible Lisp Changes in Emacs 23.1 | |
8ec65cd7 | 474 | |
03605a28 MA |
475 | +++ |
476 | ** The function `dired-call-process' has been removed. | |
477 | ||
777ea444 GM |
478 | ** The variable `byte-compile-warnings' can now be a list starting with `not', |
479 | meaning to disable the specified warnings. The meaning of this list | |
480 | may therefore be the reverse of what you expect (of course, this is | |
481 | only an issue if you make use of the new `not' syntax). Rather than | |
482 | checking/manipulating elements directly, use the new functions | |
483 | `byte-compile-warning-enabled-p', `byte-compile-disable-warning', and | |
484 | `byte-compile-enable-warning.' | |
485 | ||
69df9d6d GM |
486 | ** `mode-name' is no longer guaranteed to be a string. |
487 | Use `(format-mode-line mode-name)' to ensure a string value. | |
488 | ||
0bfd685e GM |
489 | \f |
490 | * Lisp Changes in Emacs 23.1 | |
8ab314f9 | 491 | |
64663f06 | 492 | ** clone-indirect-buffer now runs the clone-indirect-buffer-hook. |
50bfa18a SM |
493 | ** `beginning-of-defun-function' now takes one argument, the count |
494 | given to `beginning-of-defun'. | |
495 | ||
39d0bf74 RS |
496 | ** The variable `inhibit-changing-match-data', if non-nil, prevents the |
497 | search and match primitives from changing the match data. | |
498 | ||
59b5d020 JL |
499 | +++ |
500 | ** New function `match-substitute-replacement' returns the result of | |
501 | `replace-match' without actually using it in the buffer. | |
502 | ||
2d105adf RS |
503 | ** If a local hook function has a non-nil `permanent-local-hook' |
504 | property, then `kill-all-local-variables' does not remove it from | |
505 | the local value of the hook variable. This means it remains | |
506 | even if you change major modes. | |
507 | ||
b9694062 JL |
508 | +++ |
509 | ** A list of default values can be specified for the DEFAULT argument of | |
510 | functions `read-from-minibuffer', `read-string', `read-command', | |
511 | `read-variable', `read-buffer', `completing-read'. Elements of this list | |
512 | are available for inserting into the minibuffer by typing `M-n'. | |
513 | For empty input these functions return the first element of this list. | |
514 | ||
66dc1ca2 RS |
515 | ** `custom-note-var-changed' tells Custom to treat the change in a certain |
516 | variable as having been made within Custom. | |
517 | ||
ab6198b2 SM |
518 | ** `frame-inherited-parameters' lets new frames inherit parameters from |
519 | the selected frame. | |
66dc1ca2 | 520 | |
c60d543d | 521 | ** Commands should use `use-region-p' to test whether there is |
d03b9b31 RS |
522 | an active region that they should operate on. |
523 | ||
c60d543d RS |
524 | ** `region-active-p' returns non-nil when Transient Mark mode |
525 | is enabled and there is an active region. This is NOT the best function | |
526 | to use to test whether a command should operate on the region instead | |
527 | of the usual behavior -- for that, use `use-region-p'. | |
528 | ||
4f4a84ec SM |
529 | ** New keymap `input-decode-map' overrides like key-translation-map, but |
530 | applies before function-key-map. Also it is terminal-local contrary to | |
531 | key-translation-map. Terminal-specific key-sequences are generally added to | |
532 | this map rather than to function-key-map now. | |
533 | ||
967b2682 GM |
534 | ** The new macro `declare-function' suppresses compiler warnings about |
535 | undefined functions. The new `check-declare' package verifies that such | |
536 | statements are accurate (i.e. the functions are actually defined in | |
537 | the specified files). | |
538 | ||
d9774611 RS |
539 | ** The new function `read-color' reads a color name using the minibuffer. |
540 | ||
833547aa RS |
541 | ** The new function `face-all-attributes' returns an alist |
542 | describing all the basic attributes of a given face. | |
543 | ||
63571b5a RS |
544 | ** `interprogram-paste-function' can now return one string or a list |
545 | of strings. In the latter case, Emacs puts the second and following | |
546 | strings on the kill ring. | |
547 | ||
24cdde13 GM |
548 | ** Changes related to multiple tty support. |
549 | ||
b12f6e85 SM |
550 | *** $TERM is now set to `dumb' for subprocesses. If you want to know the |
551 | $TERM inherited by Emacs you will have to look inside initial-environment. | |
552 | ||
6168122d SM |
553 | *** $DISPLAY is now dynamically inherited from the frame's `display'. |
554 | ||
24cdde13 GM |
555 | *** The `window-system' variable has been made frame-local. The new |
556 | `initial-window-system' variable contains the `window-system' value | |
557 | for the first frame. | |
558 | ||
559 | *** You can specify a terminal device (`tty' parameter) and a terminal | |
560 | type (`tty-type' parameter) to `make-terminal-frame'. | |
561 | ||
562 | *** The new function `make-frame-on-tty' allows you to create a new | |
563 | frame on another tty device interactively. | |
564 | ||
565 | *** The function `make-frame-on-display' now works during a tty | |
566 | session, and `make-frame-on-tty' works during a graphical session. | |
567 | ||
da406961 | 568 | *** New functions: `delete-tty', `suspend-tty', `resume-tty'. |
24cdde13 | 569 | |
419f8f49 SM |
570 | *** A new data type for terminals with functions: `get-device-terminal', |
571 | `terminal-parameters', `terminal-parameter', `set-terminal-parameter'. | |
24cdde13 | 572 | |
1816bda7 | 573 | *** New hooks: `suspend-tty-functions' and `resume-tty-functions' |
92cd6a7c | 574 | are called after a tty frame has been suspended or resumed, |
de3054d5 | 575 | respectively. The functions are called with the terminal id of the frame |
92cd6a7c DN |
576 | being suspended/resumed as a parameter. |
577 | ||
01ff458e | 578 | *** New function: `environment'. |
da406961 | 579 | |
4f4a84ec | 580 | *** New variable: `local-function-key-map'. |
01ff458e SM |
581 | This in addition to the global function-key-map variable that |
582 | already existed. The global variable is not used directly any more; | |
583 | instead, the local-function-key-map is initialized so as to inherit from | |
584 | function-key-map. | |
da406961 | 585 | |
82866ad5 SM |
586 | *** `initial-environment' holds the environment inherited from Emacs's parent. |
587 | ||
24cdde13 GM |
588 | *** The `keyboard-translate-table' variable and the terminal and |
589 | keyboard coding systems have been made terminal-local. | |
590 | ||
1aa423e9 SM |
591 | *** In addition to the global function-key-map, Emacs has terminal-local |
592 | local-function-key-map variables, and uses them instead of the | |
24cdde13 GM |
593 | global keymaps to set up translations and function key sequences |
594 | relevant to a specific terminal device. | |
595 | ||
596 | ||
90ab5c62 SM |
597 | ** You can now also pass the value of the `invisible' property to invisible-p |
598 | to check whether it would cause the text to be invisible. Convenient when | |
599 | checking invisibility of text which has no buffer position | |
600 | (e.g. in before/after-strings). | |
9f44d41a | 601 | |
ea2e3ef4 RS |
602 | ** Non-breaking space now acts as whitespace. |
603 | ||
41bd52f7 | 604 | +++ |
8d371994 RS |
605 | ** In `condition-case', a handler can specify "let the debugger run first". |
606 | ||
607 | You do this by writing `debug' in the list of conditions to be handled, | |
608 | like this: | |
609 | ||
610 | (condition-case nil | |
611 | (foo bar) | |
612 | ((debug error) nil)) | |
613 | ||
0a963185 SM |
614 | ** The `require-match' argument to `completing-read' accepts a new value |
615 | `confirm-only'. | |
616 | ||
c69b0314 SM |
617 | +++ |
618 | ** The regexp form \(?<num>:<regexp>\) specifies the group number explicitly. | |
619 | ||
9f44d41a RS |
620 | ** New function `window-full-width-p' returns t if a window is as wide |
621 | as its frame. | |
622 | ||
623 | ** The new function `split-string-and-unquote' does (what?) | |
624 | ||
625 | ** The new function `combine-and-quote-strings' does (what?) | |
626 | ||
627 | ** The new function `image-refresh' refreshes all images associated | |
628 | with a given image specification. | |
629 | ||
abf13a8b CY |
630 | +++ |
631 | ** New variable `user-emacs-directory'. | |
632 | Use this instead of "~/.emacs.d". | |
633 | ||
b2b387f9 | 634 | +++ |
0f3cd6b2 | 635 | ** The new function `start-file-process' is similar to `start-process', |
b2b387f9 | 636 | but obeys file handlers. The file handler is chosen based on |
6dbe7eb4 MA |
637 | `default-directory'. The functions `start-file-process-shell-command' |
638 | and `process-file-shell-command' are also new; they call internally | |
0f3cd6b2 | 639 | `start-file-process' and `process-file', respectively. |
b2b387f9 | 640 | |
967b2682 GM |
641 | ** The new function `process-lines' executes an external program and |
642 | returns its output as a list of lines. | |
643 | ||
64639e26 | 644 | +++ |
41bd52f7 MA |
645 | ** `file-remote-p' has new optional parameters IDENTIFICATION and CONNECTED. |
646 | IDENTIFICATION specifies which part of the remote identifier has to be | |
647 | returned. With CONNECTED passed non-nil, it is checked whether a | |
648 | remote connection has been established already. | |
64639e26 | 649 | |
45595a4f RS |
650 | ** The two new functions `looking-at-p' and `string-match-p' can do |
651 | the same matching as `looking-at' and `string-match' without changing | |
652 | the match data. | |
89835619 SM |
653 | |
654 | ** The interactive-form of a function can be added post-facto via the | |
655 | `interactive-form' symbol property. Mostly useful to add complex interactive | |
656 | forms to subroutines. | |
9bae34bf | 657 | \f |
0bfd685e | 658 | * New Packages for Lisp Programming in Emacs 23.1 |
efeb796b | 659 | |
9097e8af RS |
660 | ** The package isearch-multi.el has been added. It implements a new mode |
661 | `isearch-buffers-minor-mode' that allows isearch to search through | |
662 | multiple buffers. In this mode a new variable | |
663 | `isearch-buffers-next-buffer-function' defines the function to call | |
664 | to get the next buffer to search in the series of multiple buffers. | |
665 | ||
d53a60a6 TTN |
666 | ** The new package avl-tree.el deals with the AVL tree data structure. |
667 | ||
05197f40 | 668 | \f |
a933dad1 | 669 | ---------------------------------------------------------------------- |
5b87ad55 | 670 | This file is part of GNU Emacs. |
a933dad1 | 671 | |
5b87ad55 GM |
672 | GNU Emacs is free software; you can redistribute it and/or modify |
673 | it under the terms of the GNU General Public License as published by | |
64be3a42 | 674 | the Free Software Foundation; either version 3, or (at your option) |
5b87ad55 GM |
675 | any later version. |
676 | ||
677 | GNU Emacs is distributed in the hope that it will be useful, | |
678 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
679 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
680 | GNU General Public License for more details. | |
a933dad1 | 681 | |
5b87ad55 GM |
682 | You should have received a copy of the GNU General Public License |
683 | along with GNU Emacs; see the file COPYING. If not, write to the | |
684 | Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, | |
685 | Boston, MA 02110-1301, USA. | |
a933dad1 | 686 | |
05197f40 | 687 | \f |
a933dad1 DL |
688 | Local variables: |
689 | mode: outline | |
690 | paragraph-separate: "[ \f]*$" | |
691 | end: | |
ab5796a9 | 692 | |
a533413c | 693 | arch-tag: e759449d-88b3-4de4-9900-3a6c3dfa23e2 |