|
428
|
1 -*- mode:outline -*-
|
|
|
2
|
|
|
3 * Introduction
|
|
|
4 ==============
|
|
|
5
|
|
2291
|
6 This file presents the changes in recent XEmacs versions. Primarily
|
|
|
7 it documents user-visible (interface) changes, but also includes
|
|
|
8 internal changes of possible interest to users. When describing new
|
|
|
9 features, we also document ways of reverting to the old behavior,
|
|
|
10 where applicable. If you dislike a recent change in how XEmacs
|
|
|
11 behaves, you may find a remedy in this file.
|
|
428
|
12
|
|
2291
|
13 Use `C-c C-f' to move to the next heading at the same level, and
|
|
|
14 `C-c C-b' to move to the previous heading at this level. `C-h m' gives
|
|
|
15 help on Outline mode. The menubar provides more commands.
|
|
428
|
16
|
|
|
17 Users who would like to know which capabilities have been introduced
|
|
|
18 in each release should look at the appropriate section of this file.
|
|
|
19 Starting with version 20.0, XEmacs includes ChangeLogs, which can be
|
|
|
20 consulted for a more detailed list of changes.
|
|
|
21
|
|
2291
|
22 N.B. The term "GNU Emacs" refers to any release of Emacs from the
|
|
|
23 Free Software Foundation's GNU Project starting with Version 19.
|
|
|
24 The term "XEmacs" refers to this program or sometimes to its
|
|
|
25 predecessors "Era" and "Lucid Emacs". The predecessor of all these
|
|
|
26 programs is called "Emacs 18". When no particular version is
|
|
|
27 implied, "Emacs" will be used.
|
|
|
28
|
|
|
29
|
|
|
30 * Changes in XEmacs 21.5
|
|
|
31 ========================
|
|
|
32
|
|
|
33 ** Summary of user-visible changes:
|
|
|
34
|
|
|
35 -- Bignums have been implemented.
|
|
|
36 -- Windows users have benefit of the full Win32 Unicode API.
|
|
|
37 -- (in process) Xft provides antialiased fonts on X11.
|
|
|
38
|
|
|
39 ** Bignum implementation.
|
|
|
40
|
|
|
41 Integer computations no longer overflow, rational arithmetic "just
|
|
|
42 works", and very precise floating point calculation is available.
|
|
|
43 This also means that large buffers (over 2^30 = 1GB) can be
|
|
|
44 manipulated.
|
|
428
|
45
|
|
|
46
|
|
464
|
47 * Changes in XEmacs 21.4
|
|
428
|
48 ========================
|
|
|
49
|
|
479
|
50 ** Summary of user-visible changes:
|
|
|
51
|
|
|
52 -- The delete key now deletes forward by default.
|
|
|
53 -- Shifted motion keys now select text by default.
|
|
|
54 -- You can now build XEmacs with support for GTK+ widget set.
|
|
|
55 -- ~/.xemacs/init.el is now the preferred location for the init file.
|
|
|
56 - XEmacs now supports a `~/.xemacs/init.el' startup file.
|
|
|
57 - Custom file will move to ~/.xemacs/custom.el.
|
|
|
58 -- Much-improved sample init.el, showing how to use many useful features.
|
|
|
59 -- XEmacs support for menu accelerators has been much improved.
|
|
|
60 -- Default menubar improvements.
|
|
|
61 - Default menubar has many new commands and better organization.
|
|
|
62 - The font-menu is now available under MS Windows.
|
|
|
63 -- Dialog box improvements, including a real file dialog box.
|
|
|
64 - XEmacs now has a proper file dialog box under MS Windows (and GTK)!
|
|
|
65 - The old clunky file dialog box is improved.
|
|
|
66 - Keyboard traversal now works correctly in MS Windows dialog boxes.
|
|
|
67 - There is a Search dialog box available from Edit->Find...
|
|
|
68 -- New buffer tabs.
|
|
|
69 -- There is a new MS Windows installer, netinstall, ported from Cygwin.
|
|
|
70 -- The subprocess quote-handling mechanism under Windows is much improved.
|
|
|
71 -- Printing support now available under MS Windows.
|
|
|
72 -- Selection improvements.
|
|
|
73 - Kill and yank now interact with the clipboard under Windows.
|
|
|
74 - MS Windows support for selection is now much more robust.
|
|
|
75 - Motif selection support is now more correct (but slower).
|
|
|
76 -- Mail spool locking now works correctly.
|
|
|
77 -- International support changes.
|
|
|
78 - The default coding-priority-list is now safer.
|
|
|
79 - International keysyms are now supported under X.
|
|
|
80 - MS Windows 1251 code page now supported.
|
|
|
81 - Czech, Thai, Cyrillic-KOI8, Vietnamese, Ethiopic now supported.
|
|
|
82 - Proper support for words in Latin 3 and Latin 4.
|
|
|
83 -- Help buffers contain hyperlinks, and other changes.
|
|
|
84 -- The modeline's text is now scrollable.
|
|
|
85 -- The mouse wheel under MS Windows now functions correctly.
|
|
|
86 -- Interactive searching and matching case improvements.
|
|
|
87 - Incremental search will now highlight all visible matches.
|
|
|
88 - Interactive searches always respect uppercase characters.
|
|
|
89 -- Rectangle functions rewritten to avoid inserting extra spaces.
|
|
|
90 -- New command `kill-entire-line' that always kills the entire line.
|
|
|
91 -- Default values correctly stored in minibuffer histories.
|
|
|
92 -- You can now create "indirect buffers", like in GNU Emacs.
|
|
|
93 -- Pixel-based scrolling has been implemented.
|
|
|
94 -- Operation progress can be displayed using graphical widgets.
|
|
|
95 -- User names following a tilde can now be completed at file name prompts.
|
|
|
96 -- XEmacs can now play sound using Enlightenment Sound Daemon (ESD).
|
|
|
97 -- X-Face support is now available under MS Windows.
|
|
|
98 -- The PostgreSQL Relational Database Management System is now supported.
|
|
|
99 -- Indentation no longer indents comments that begin at column zero.
|
|
|
100 -- Face and variable settings can have comments in Customize.
|
|
|
101 -- New locations for early package hierarchies.
|
|
|
102 -- The `auto-save' library has been greatly improved.
|
|
|
103 -- New variable `mswindows-alt-by-itself-activates-menu'.
|
|
|
104 -- Other init-file-related changes.
|
|
|
105 - Init file in your home directory may be called `.emacs.el'.
|
|
|
106 - New command-line switches -user-init-file and -user-init-directory.
|
|
|
107 -- Etags changes.
|
|
|
108 - In DOS, etags looks for file.cgz if it cannot find file.c.
|
|
|
109 - New option --ignore-case-regex is an alternative to --regex.
|
|
|
110 - New option --declarations, for C-type languages.
|
|
|
111 - In C++, tags are created for "operator".
|
|
|
112 - Ada now supported.
|
|
|
113 - In Fortran, procedure is no longer tagged.
|
|
|
114 - In Java, tags are created for "interface".
|
|
|
115 - In Lisp, def-type constructs are now tagged.
|
|
|
116 - In Perl, the --globals option tags global variables.
|
|
|
117 - Python now supported.
|
|
|
118 - New file extensions recognized: .ss, .pdb, .psw.
|
|
|
119
|
|
440
|
120 ** The delete key now deletes forward by default.
|
|
428
|
121
|
|
440
|
122 This is regulated by the variable `delete-key-deletes-forward', which
|
|
|
123 now defaults to t. `delete-key-deletes-forward' takes effect only on
|
|
|
124 the systems that offer both a backspace and a delete key. If set to
|
|
|
125 nil, the key labeled "Delete" will always delete backward. If set to
|
|
|
126 non-nil, the "Delete" key will delete forward, except on keyboards
|
|
479
|
127 where a "Backspace" key is not provided (e.g. old DEC keyboards).
|
|
428
|
128
|
|
|
129 Unless our implementation has bugs, the only reason why you would want
|
|
|
130 to set `delete-key-deletes-forward' to nil is if you want to use the
|
|
|
131 Delete key to delete backwards, despite the presence (according to
|
|
|
132 Xlib) of a BackSpace key on the keyboard.
|
|
|
133
|
|
479
|
134 ** Shifted motion keys now select text by default.
|
|
|
135
|
|
|
136 You can turn this off by setting `shifted-motion-keys-select-region'
|
|
|
137 to nil. This works based off of particular keys, not particular
|
|
|
138 commands: Thus, the arrow keys will normally trigger selection when
|
|
|
139 the Shift key is held down regardless of their bindings, and non-arrow
|
|
|
140 keys with the same bindings (e.g. C-f) will not work this way. You
|
|
|
141 can control which keys trigger shifted motion using
|
|
|
142 `motion-keys-for-shifted-motion'. See also
|
|
|
143 `unshifted-motion-keys-deselect-region'.
|
|
|
144
|
|
464
|
145 ** You can now build XEmacs with support for GTK+ widget set.
|
|
|
146
|
|
|
147 XEmacs built that way uses GTK+ to draw menubars, scrollbars, and
|
|
|
148 other GUI components, as well GDK for drawing text, choosing fonts,
|
|
|
149 allocating colors, etc. Additionally, GTK-XEmacs supports Lisp
|
|
|
150 functions for writing your own GTK programs in Emacs Lisp!
|
|
|
151
|
|
|
152 To use this, build XEmacs with the `--with-gtk' configure flag. (Of
|
|
|
153 course, you'll need to have the GTK+ libraries and header files on the
|
|
|
154 system.) Gnome widgets and functionality are supported where
|
|
|
155 available, and can be turned off.
|
|
|
156
|
|
479
|
157 ** ~/.xemacs/init.el is now the preferred location for the init file.
|
|
|
158
|
|
|
159 *** XEmacs now supports a `~/.xemacs/init.el' startup file.
|
|
|
160 If it exists, XEmacs will prefer it over `.emacs' and `.emacs.el'.
|
|
|
161 The file may be byte-compiled as `~/.xemacs/init.elc'.
|
|
|
162
|
|
|
163 If present, the `~/.xemacs/' directory may contain startup files for
|
|
|
164 XEmacs packages that support it.
|
|
|
165
|
|
|
166 The first time you start up XEmacs, it will ask you if you would like
|
|
|
167 to migrate your `.emacs' to the new location. (Your custom settings
|
|
|
168 will also be moved, to `~/.xemacs/custom.el' -- see below.) If so, you
|
|
|
169 will also be asked whether you would like to create a compatibility
|
|
|
170 `.emacs' for backward compatibility with previous versions of XEmacs
|
|
|
171 and with GNU Emacs. (This compatibility `.emacs' simply loads the new
|
|
|
172 init and custom files.) Doing this is generally a good idea -- new
|
|
|
173 versions of XEmacs will prefer `~/.xemacs/init.el' over `~/.emacs' in
|
|
|
174 any case.
|
|
|
175
|
|
|
176 You can manually migrate at any time with `migrate-user-init-file',
|
|
|
177 and undo any migration with `unmigrate-user-init-file'. The function
|
|
|
178 `create-compatibility-dot-emacs' also lets you manually create a
|
|
|
179 compatibility `.emacs'.
|
|
|
180
|
|
|
181 NOTE: Under MS Windows, your home directory (i.e. the directory named
|
|
|
182 `~') is specified by the HOME environment variable, and defaults to
|
|
|
183 C:\. To set this variable, modify AUTOEXEC.BAT under Windows 95/98,
|
|
|
184 or select Control Panel->System->Advanced->Environment Variables...
|
|
|
185 under Windows NT/2000.
|
|
|
186
|
|
|
187 *** Custom file will move to ~/.xemacs/custom.el.
|
|
|
188
|
|
|
189 Whereas customize settings were formerly stored in the regular init
|
|
|
190 file, XEmacs now prefers them to be in a separate file
|
|
|
191 `~/.xemacs/custom.el', completely under automatic control. This
|
|
|
192 change goes with the migration of the init file, and XEmacs offers
|
|
|
193 automatic migration upon startup.
|
|
|
194
|
|
|
195 ** Much-improved sample init.el, showing how to use many useful features.
|
|
|
196
|
|
|
197 The sample init file, located in the `etc/' directory of the XEmacs
|
|
|
198 installation, has been renamed from `sample.emacs' to `sample.init.el',
|
|
|
199 and pretty much rewritten from scratch. (You can view it by selecting
|
|
|
200 the menu item Help->Samples->Sample init.el.) Many of the most-useful
|
|
|
201 optional features in XEmacs have been enabled, and other features that
|
|
|
202 are useful but may be annoying to some are present but commented out.
|
|
|
203 There is also extensive documentation on how to add your own
|
|
|
204 improvements to the init file and where to find more documentation
|
|
|
205 elsewhere in XEmacs. The file has been specifically designed so that
|
|
|
206 most people can simply make it their own init file by copying it to
|
|
|
207 ~/.xemacs/init.el, and they will be satisfied with the results.
|
|
|
208
|
|
|
209 ** XEmacs support for menu accelerators has been much improved.
|
|
442
|
210
|
|
479
|
211 It now works properly under MS Windows, for example. To enable
|
|
|
212 accelerators, set `menu-accelerator-enabled' to `menu-force'. Menus
|
|
|
213 now have accelerators by default, currently on the first letter of the
|
|
|
214 menu item unless another letter was indicated as the accelerator using
|
|
|
215 %_ in the menu string. These %_ specifications are automatically
|
|
|
216 removed when displaying the menu item, and are handled correctly in
|
|
|
217 functions such as `normalize-menu-item-name'. Some auto-generated
|
|
|
218 menus will have accelerators added dynamically, using numbers 1-9 and
|
|
|
219 letters; to add this feature yourself, use the Lisp command
|
|
|
220 `submenu-generate-accelerator-spec' in a menu filter. The feature
|
|
|
221 `menu-accelerator-support' has been added so that packages can check
|
|
|
222 whether this support exists.
|
|
|
223
|
|
|
224 ** Default menubar improvements.
|
|
|
225
|
|
|
226 *** Default menubar has many new commands and better organization.
|
|
|
227
|
|
|
228 The default menubar has been extensively reorganized. Many more
|
|
|
229 commands are available, and they are more logically organized. The
|
|
|
230 Options menu, in particular, has been significantly expanded, and almost
|
|
|
231 everything on the new Cmds menu is new. (Much of the useful
|
|
|
232 functionality from the `big-menubar' package has been imported.)
|
|
|
233
|
|
|
234 *** The font-menu is now available under MS Windows.
|
|
|
235
|
|
|
236 ** Dialog box improvements, including a real file dialog box.
|
|
|
237
|
|
|
238 *** XEmacs now has a proper file dialog box under MS Windows (and GTK)!
|
|
|
239 This will appear whenever you select a menu item that requires a file
|
|
|
240 as an argument.
|
|
|
241
|
|
|
242 *** The old clunky file dialog box is improved.
|
|
|
243 The in-buffer file dialog box (visible on non-MS-Windows, non-GTK
|
|
|
244 systems) is still clunky but has had many improvements to make it work
|
|
|
245 significantly better.
|
|
|
246
|
|
|
247 *** Keyboard traversal now works correctly in MS Windows dialog boxes.
|
|
|
248
|
|
|
249 *** There is a Search dialog box available from Edit->Find...
|
|
|
250 However, it's very experimental and needs a lot of work.
|
|
|
251
|
|
|
252 ** New buffer tabs.
|
|
|
253
|
|
|
254 You can now use buffer tabs to switch between buffers.
|
|
|
255
|
|
|
256 The tabs are located between the toolbar and the uppermost window, in
|
|
|
257 a location called the "gutter". If you dislike the buffer tabs, you can
|
|
|
258 disable them using the menu item `Options->Display->Buffers Tab Visible'
|
|
|
259 by customizing `gutter-buffers-tab-visible-p', or by placing this in
|
|
|
260 your .xemacs/init.el:
|
|
|
261
|
|
|
262 (custom-set-variables '(gutter-buffers-tab-visible-p nil))
|
|
|
263
|
|
|
264 You can change the location of the gutter using the menu item
|
|
|
265 `Options->Display->Default Gutter Location' or with (e.g.)
|
|
|
266
|
|
|
267 (custom-set-variables '(default-gutter-position 'left))
|
|
|
268
|
|
|
269 However, currently only MS Windows supports tab widgets with
|
|
|
270 orientations other than vertical, and it doesn't currently support
|
|
|
271 gutters on the bottom of the frame.
|
|
|
272
|
|
|
273 ** There is a new MS Windows installer, netinstall, ported from Cygwin.
|
|
|
274
|
|
|
275 Nearly complete automation of the XEmacs install process from
|
|
|
276 ftp.xemacs.org. Includes selection of Lisp packages to install, etc.
|
|
442
|
277
|
|
479
|
278 ** The subprocess quote-handling mechanism under Windows is much improved.
|
|
|
279
|
|
|
280 Specifically, the quote-handling mechanism has been completely rewritten,
|
|
|
281 and you should now be able to use single or double quotes to quote arguments
|
|
|
282 just like under Unix, and expect to get correct results regardless of the
|
|
|
283 shell you are using (e.g. CMD.EXE, bash from Cygwin, etc.). For example,
|
|
|
284 the following command:
|
|
|
285
|
|
|
286 M-x grep '<<<<<<<' *.c
|
|
|
287
|
|
|
288 should work as intended.
|
|
|
289
|
|
|
290 ** Printing support now available under MS Windows.
|
|
|
291
|
|
|
292 The File->Print... menu item pretty-prints using the standard MS
|
|
|
293 Windows printing facilities. Unfortunately it's still rather
|
|
|
294 experimental. There is a separate `msprinter' device tag for MS
|
|
|
295 Windows printers, and so you can control the way that faces appear on
|
|
|
296 the printer by using this tag to specify device-specific face
|
|
|
297 settings.
|
|
|
298
|
|
|
299 ** Selection improvements.
|
|
|
300
|
|
|
301 *** Kill and yank now interact with the clipboard under Windows.
|
|
464
|
302
|
|
479
|
303 This was done by changing the default value of `interprogram-cut-function'
|
|
|
304 and `interprogram-paste-function'. You can get the old behavior by
|
|
|
305 setting these to nil, and there is an option on the options menu to do
|
|
|
306 this.
|
|
|
307
|
|
|
308 *** MS Windows support for selection is now much more robust.
|
|
|
309
|
|
|
310 Generally selection should now do what you would expect under
|
|
|
311 MS Windows: the middle mouse button will paste your current selection
|
|
|
312 or the clipboard; conversions from different types of selection to the
|
|
|
313 clipboard can be made; the kill-ring and friends will be updated as
|
|
|
314 per X.
|
|
|
315
|
|
|
316 The only thing selection doesn't do is set the clipboard automatically
|
|
|
317 as this would break the MS Windows model. If you want this behavior
|
|
|
318 then set `selection-sets-clipboard' to t.
|
|
|
319
|
|
|
320 *** Motif selection support is now more correct (but slower).
|
|
|
321
|
|
|
322 Changes have been made to allow correct operation of cut/copy/paste
|
|
|
323 operations between native widgets and XEmacs buffers. However, this
|
|
|
324 can lead to a lot of X traffic which slows down the performance of
|
|
|
325 `C-k'. If you want the old behaviour then set
|
|
|
326 `x-selection-strict-motif-ownership' to nil.
|
|
|
327
|
|
|
328 ** Mail spool locking now works correctly.
|
|
464
|
329
|
|
479
|
330 XEmacs has always come with a little auxiliary program, movemail,
|
|
|
331 which moves mail out of the system's spool area into user storage. To
|
|
|
332 coordinate between XEmacs, the mail delivery agent, and other mail
|
|
|
333 user agents, movemail needs to properly lock the spool file before
|
|
|
334 moving it. Movemail now correctly respects the --mail-locking option
|
|
|
335 to configure. Moreover, movemail's locking behavior can be specified
|
|
|
336 at run-time, via a new command-line option -m to movemail, or through
|
|
|
337 the environment variable EMACSLOCKMETHOD.
|
|
|
338
|
|
|
339 When installing XEmacs, make sure you configure it according to your
|
|
|
340 environment's mail spool locking conventions. When you're using a
|
|
|
341 binary kit, set the `mail-lock-method' variable at startup, or the
|
|
|
342 EMACSLOCKMETHOD environment variable.
|
|
|
343
|
|
|
344 ** International support changes.
|
|
|
345
|
|
|
346 *** The default coding-priority-list is now safer.
|
|
|
347
|
|
|
348 This means that if you have no language environment set, Mule no
|
|
|
349 longer automatically recognizes ISO 2022 escapes in your files. This
|
|
|
350 makes editing binary files safe.
|
|
|
351
|
|
|
352 *** International keysyms are now supported under X.
|
|
|
353
|
|
|
354 This means that XEmacs running under Mule will automatically recognize
|
|
|
355 the keysym `scaron' to be the lower-case `s' with caron in the Latin 2
|
|
|
356 character set. (Specifically, it will bind the keysym to
|
|
|
357 `self-insert' and augment its `ascii-character' property.) This is
|
|
|
358 very useful with XFree under European locales as shipped by recent
|
|
|
359 Linux distributions. If XEmacs is compiled without Mule support, the
|
|
|
360 feature still works, but it is unaware of different character sets --
|
|
|
361 it unconditionally sets the `ascii-character' property to values in
|
|
|
362 the [160, 256) range.
|
|
442
|
363
|
|
479
|
364 *** MS Windows 1251 code page now supported.
|
|
|
365
|
|
|
366 It's available as coding system `windows-1251'.
|
|
|
367
|
|
|
368 *** Czech, Thai, Cyrillic-KOI8, Vietnamese, Ethiopic now supported.
|
|
|
369
|
|
|
370 *** Proper support for words in Latin 3 and Latin 4.
|
|
|
371
|
|
|
372 The appropriate characters in Latin 3 and Latin 4 character sets are
|
|
|
373 correctly defined as words.
|
|
|
374
|
|
|
375 ** Help buffers contain hyperlinks, and other changes.
|
|
|
376
|
|
|
377 The help buffers created by C-h commands now contain hyperlinks to
|
|
|
378 other commands, functions and variables mentioned in the documentation.
|
|
|
379 Use button2 to follow a link. Use button3 to bring up a context menu
|
|
|
380 that lets you follow the link, find the source for the item, do a tag
|
|
|
381 search, etc. The buffers are also syntax-highlighted.
|
|
|
382
|
|
|
383 Help functions (e.g. `C-h f') now know how to print macro argument
|
|
|
384 lists. If your macro definition included an argument list for the sake
|
|
|
385 of help output, you no longer need to do that.
|
|
|
386
|
|
|
387 ** The modeline's text is now scrollable.
|
|
|
388
|
|
|
389 This is controlled by the variable `modeline-scrolling-method', which
|
|
|
390 you need to set to a non-nil value. You can also choose scrolling
|
|
|
391 types; see the docstring of `modeline-scrolling-method' for more
|
|
|
392 information.
|
|
|
393
|
|
|
394 ** The mouse wheel under MS Windows now functions correctly.
|
|
|
395
|
|
|
396 It scrolls the XEmacs window under the pointer, not the selected
|
|
|
397 window.
|
|
442
|
398
|
|
428
|
399 ** Interactive searching and matching case improvements.
|
|
|
400
|
|
479
|
401 *** Incremental search will now highlight all visible matches.
|
|
|
402
|
|
|
403 This makes it easier to anticipate where consecutive C-s or C-r will
|
|
|
404 place the point. If you want to disable the feature, set
|
|
|
405 `isearch-highlight-all-matches' to nil.
|
|
|
406
|
|
|
407 *** Interactive searches always respect uppercase characters.
|
|
|
408
|
|
|
409 Case sensitiveness in searching operations is normally controlled
|
|
|
410 by the variable `case-fold-search' (if non-nil, case is ignored while
|
|
428
|
411 searching). This mechanism has now been slightly improved for
|
|
|
412 interactive searches: if the search string (or regexp) contains
|
|
|
413 uppercase characters, the searching is forced to be case-sensitive,
|
|
|
414 `case-fold-search'.
|
|
|
415
|
|
|
416 The new behavior affects all functions performing interactive
|
|
|
417 searches, like `zap-to-char', `list-matching-lines', `tags-search'
|
|
|
418 etc. The incremental search facility has always behaved that way.
|
|
|
419
|
|
479
|
420 ** Rectangle functions rewritten to avoid inserting extra spaces.
|
|
442
|
421
|
|
479
|
422 The rectangle functions have been almost completely rewritten in
|
|
428
|
423 order to avoid inserting undesirable spaces, notably at the end of
|
|
|
424 lines. Two typical examples of the old behavior were
|
|
|
425 `string-rectangle', which filled all lines up to the right side of the
|
|
|
426 rectangle, and `clear-rectangle', which filled even empty lines up to
|
|
|
427 the left side. All functions have been rewritten to avoid inserting
|
|
|
428 unwanted spaces, and an optional prefix now allows them to behave the
|
|
|
429 old way.
|
|
|
430
|
|
442
|
431 Also, the behavior of `string-rectangle' is now compliant with
|
|
|
432 `pending-delete-mode': if this mode is active, then the string
|
|
|
433 replaces the region rectangle. Otherwise, the command does not delete
|
|
|
434 or overwrite any existing text. For those who want that feature but do
|
|
|
435 not use pending-delete-mode, a new function, `replace-rectangle', is
|
|
686
|
436 available, and bound to `C-x r p'.
|
|
442
|
437
|
|
428
|
438 As a side effect, the FORCE argument to `move-to-column' now
|
|
|
439 understands the special value `coerce', which means that the line
|
|
|
440 should not be filled if it is too short to reach the desired column.
|
|
|
441
|
|
479
|
442 ** New command `kill-entire-line' that always kills the entire line.
|
|
|
443
|
|
|
444 This kills the entire line at point, regardless of whether the point
|
|
|
445 is at the beginning of line, and regardless of the setting of
|
|
|
446 `kill-whole-line'.
|
|
|
447
|
|
|
448 ** Default values correctly stored in minibuffer histories.
|
|
428
|
449
|
|
479
|
450 When you press RET at a minibuffer prompt that provides a default
|
|
|
451 value, the value is stored in history instead of an empty line. Also,
|
|
|
452 you can now edit the default value by pressing the down arrow,
|
|
|
453 accessing the logical "future" value. Not all minibuffer prompts have
|
|
|
454 yet been converted to support this feature.
|
|
428
|
455
|
|
479
|
456 ** You can now create "indirect buffers", like in GNU Emacs.
|
|
|
457
|
|
|
458 An indirect buffer shares its text with another buffer ("base
|
|
|
459 buffer"), but has its own major mode, local variables, extents, and
|
|
|
460 narrowing. An indirect buffer has a name of its own, distinct from
|
|
|
461 those of the base buffer and all other buffers. An indirect buffer
|
|
|
462 cannot itself be visiting a file (though its base buffer can be).
|
|
|
463 The base buffer cannot itself be indirect.
|
|
428
|
464
|
|
|
465 Use (make-indirect-buffer BASE-BUFFER NAME) to make an indirect buffer
|
|
|
466 named NAME whose base is BASE-BUFFER. If BASE-BUFFER is itself an
|
|
|
467 indirect buffer, its base buffer is used as the base for the new
|
|
|
468 buffer.
|
|
|
469
|
|
|
470 You can make an indirect buffer current, or switch to it in a window,
|
|
|
471 just as you would a non-indirect buffer.
|
|
|
472
|
|
|
473 The function `buffer-base-buffer' returns a buffer's base buffer or
|
|
|
474 nil, if given an ordinary (non-indirect) buffer. The function
|
|
|
475 `buffer-indirect-children' returns a list of the indirect children of
|
|
|
476 a base buffer.
|
|
|
477
|
|
479
|
478 ** Pixel-based scrolling has been implemented.
|
|
|
479 By default this will attempt to scroll in increments equal to the
|
|
|
480 height of the default face. Set `window-pixel-scroll-increment' to
|
|
|
481 modify this behavior.
|
|
|
482
|
|
|
483 ** Operation progress can be displayed using graphical widgets.
|
|
|
484 See `progress-feedback' for details. This support has been switched
|
|
|
485 on by default for font-lock and some web browsing functions. If you
|
|
|
486 do not like this behavior, set `progress-feedback-use-echo-area' to
|
|
|
487 nil.
|
|
|
488
|
|
|
489 ** User names following a tilde can now be completed at file name prompts.
|
|
|
490 e.g. `C-x C-f ~hni<TAB>' will complete to `~hniksic/'. To make this
|
|
|
491 operation faster, a cache of user names is maintained internally.
|
|
428
|
492
|
|
|
493 The new primitives available for this purpose are functions named
|
|
|
494 `user-name-completion' and `user-name-all-completions'.
|
|
|
495
|
|
|
496 ** XEmacs can now play sound using Enlightenment Sound Daemon (ESD).
|
|
|
497 It will try NAS first, then ESD, then playing native sound directly.
|
|
|
498
|
|
479
|
499 ** X-Face support is now available under MS Windows.
|
|
|
500 If an X-Face library built under MS Windows is available then XEmacs
|
|
428
|
501 will use this at build time.
|
|
|
502
|
|
479
|
503 ** The PostgreSQL Relational Database Management System is now supported.
|
|
|
504 It is now possible to build XEmacs so that the programming interface
|
|
|
505 to the PostgreSQL RDBMS (libpq) is available in XEmacs Lisp.
|
|
|
506 Supported versions of PostgreSQL are 6.5.3 (earlier versions may work,
|
|
|
507 but have not been tested) and 7.0-beta1.
|
|
438
|
508
|
|
464
|
509 ** Indentation no longer indents comments that begin at column zero.
|
|
|
510 This makes it easy to deal with commented out regions of code.
|
|
|
511
|
|
479
|
512 ** Face and variable settings can have comments in Customize.
|
|
|
513 Customize now supports adding comments about your face and variable
|
|
|
514 settings using a new menu entry. Comments for variables can also be
|
|
|
515 assigned by calling `customize-set-(value|variable)' with a prefix
|
|
|
516 argument.
|
|
|
517
|
|
|
518 ** New locations for early package hierarchies.
|
|
|
519 XEmacs now locates the early package hierarchies at
|
|
|
520 ~/.xemacs/mule-packages/ and ~/.xemacs/xemacs-packages/. Previously,
|
|
|
521 the early packages were located in ~/.xemacs/.
|
|
464
|
522
|
|
479
|
523 ** The `auto-save' library has been greatly improved.
|
|
|
524 (This lets you group all your auto-save files into one directory, and
|
|
|
525 is provided standardly with XEmacs. See `etc/sample.init.el',
|
|
|
526 available on the Help menu, for more info on how to set it up.)
|
|
|
527 Specifically, it now works under MS Windows, and it uses a completely
|
|
|
528 reversible encoding (basically quoted-printable), so that all
|
|
|
529 filenames (as well as non-filename buffers) are successfully handled
|
|
|
530 regardless of any special characters in their names.
|
|
464
|
531
|
|
479
|
532 ** New variable `mswindows-alt-by-itself-activates-menu'.
|
|
|
533 If you set this variable to nil then pressing and releasing the Alt
|
|
|
534 key under MS Windows will no longer activate the menubar. The default
|
|
|
535 is t. This is not to be confused with `menu-accelerator-enabled',
|
|
|
536 which enables the use of Alt+<Letter> accelerators to invoke the
|
|
|
537 menus.
|
|
|
538
|
|
|
539 ** Other init-file-related changes.
|
|
464
|
540
|
|
|
541 *** Init file in your home directory may be called `.emacs.el'.
|
|
442
|
542
|
|
464
|
543 Like in GNU Emacs 20.4 and on, you can now name the XEmacs init file
|
|
|
544 located in your home directory `.emacs.el'. Formerly the name had to
|
|
|
545 be `.emacs'. If you use the name `.emacs.el', you can byte-compile
|
|
|
546 the file in the usual way.
|
|
|
547
|
|
|
548 If both `.emacs' and `.emacs.el' exist, the latter file is the one
|
|
|
549 that is used.
|
|
442
|
550
|
|
464
|
551 *** New command-line switches -user-init-file and -user-init-directory.
|
|
479
|
552
|
|
464
|
553 These can be used to specify alternate locations for what is normally
|
|
|
554 ~/.emacs and ~/.xemacs.
|
|
442
|
555
|
|
464
|
556 Moreover, the `-user <user>' command-line option (which used to only
|
|
|
557 work in unpredictable ways) is now equivalent to `-user-init-file
|
|
|
558 ~<user>/.xemacs/init.el -user-init-directory ~<user>/.xemacs', or
|
|
|
559 `-user-init-file ~<user>/.emacs -user-init-directory ~<user>/.xemacs',
|
|
|
560 whichever init file comes first.
|
|
|
561
|
|
428
|
562 ** Etags changes.
|
|
|
563
|
|
|
564 *** In DOS, etags looks for file.cgz if it cannot find file.c.
|
|
|
565
|
|
479
|
566 *** New option --ignore-case-regex is an alternative to --regex.
|
|
|
567 It is now possible to bind a regexp to a language, by prepending the
|
|
|
568 regexp with {lang}, where lang is one of the languages that `etags
|
|
|
569 --help' prints out. This feature is useful especially for regex
|
|
|
570 files, where each line contains a regular expression. The manual
|
|
|
571 contains details.
|
|
428
|
572
|
|
479
|
573 *** New option --declarations, for C-type languages.
|
|
|
574 In C and derived languages, etags creates tags for function
|
|
428
|
575 declarations when given the --declarations option.
|
|
|
576
|
|
479
|
577 *** In C++, tags are created for "operator".
|
|
|
578 The tags have the form "operator+", without spaces between the
|
|
|
579 keyword and the operator.
|
|
428
|
580
|
|
479
|
581 *** Ada now supported.
|
|
|
582 Tags are functions, procedures, packages, tasks, and types.
|
|
428
|
583
|
|
464
|
584 *** In Fortran, procedure is no longer tagged.
|
|
428
|
585
|
|
|
586 *** In Java, tags are created for "interface".
|
|
|
587
|
|
479
|
588 *** In Lisp, def-type constructs are now tagged.
|
|
|
589 This includes "(defstruct (foo", "(defun (operator" and similar constructs.
|
|
|
590
|
|
|
591 *** In Perl, the --globals option tags global variables.
|
|
|
592 my and local variables are tagged.
|
|
428
|
593
|
|
479
|
594 *** Python now supported.
|
|
|
595 def and class at the beginning of a line are tags.
|
|
428
|
596
|
|
479
|
597 *** New file extensions recognized: .ss, .pdb, .psw.
|
|
|
598 .ss files are Scheme files, .pdb is Postscript with C syntax, .psw is
|
|
428
|
599 for PSWrap.
|
|
|
600
|
|
|
601
|
|
464
|
602 * Lisp and internal changes in XEmacs 21.4
|
|
428
|
603 ==========================================
|
|
|
604
|
|
440
|
605 ** A new portable dumper is available for beta testing.
|
|
430
|
606
|
|
|
607 Olivier Galibert has written a portable dumper for XEmacs, based on
|
|
464
|
608 initial work by Kyle Jones. To perform even the most basic editor,
|
|
|
609 XEmacs requires some amount of Lisp code to be loaded. To avoid
|
|
|
610 repeating the expensive loading process at every startup, XEmacs is
|
|
|
611 built in a special way. Its C sources link into an executable called
|
|
|
612 `temacs', which loads the bootstrap Lisp code and uses a special
|
|
|
613 "unexec" call to dump the resulting memory image into a proper
|
|
|
614 `xemacs' executable on disk. The unexec() process is hard to
|
|
432
|
615 implement correctly and makes XEmacs very hard to port to new
|
|
|
616 operating systems, or even to new releases of old systems.
|
|
430
|
617
|
|
464
|
618 The new portable dumper uses a different approach to dumping: instead
|
|
|
619 of dumping full-fledged executable, it only dumps out the initialized
|
|
430
|
620 data structures (both Lisp and C) into an external file. A normally
|
|
464
|
621 running XEmacs only needs to mmap that file and relocate a bit to get
|
|
|
622 to the initialized data. In that scheme, there is no difference
|
|
430
|
623 between `temacs' and `xemacs'.
|
|
|
624
|
|
464
|
625 Unfortunately, the portable dumper has not been completely finished
|
|
|
626 for this release, and will not be used by default. However, if you
|
|
|
627 wish to experiment with it, or if you need to compile XEmacs on a new
|
|
|
628 and unsupported platform, you can test it by configuring XEmacs with
|
|
|
629 `--pdump' flag.
|
|
440
|
630
|
|
428
|
631 ** Much effort has been invested to make XEmacs Lisp faster:
|
|
|
632
|
|
|
633 *** Many basic lisp operations are now faster.
|
|
|
634 This is especially the case when running a Mule-enabled XEmacs.
|
|
|
635
|
|
|
636 A general overhaul of the lisp engine should produce a speedup of 1.4
|
|
464
|
637 in a non-Mule XEmacs, and 2.1 in a Mule XEmacs. These numbers were
|
|
428
|
638 obtained running `(byte-compile "simple.el")', which should be a
|
|
|
639 pretty typical test of "pure" Lisp.
|
|
|
640
|
|
|
641 *** Lisp hash tables have been re-implemented. The Common Lisp style
|
|
|
642 hash table interface has been made standard, and moved from cl.el into
|
|
|
643 fast C code (See the section on hash tables in the XEmacs Lisp
|
|
|
644 Reference). A speedup factor of 3 can be expected with code that
|
|
|
645 makes intensive use of hash tables.
|
|
|
646
|
|
|
647 *** The garbage collector has been tuned, leading to a speedup of
|
|
|
648 1.16.
|
|
|
649
|
|
464
|
650 *** The byte-compiler and the byte-optimizer have been tuned to
|
|
|
651 produce better code in many small ways.
|
|
|
652
|
|
428
|
653 *** The family of functions that iterate over lists, like `memq', and
|
|
|
654 `rassq', have been made a little faster (typically 1.3).
|
|
|
655
|
|
|
656 *** Lisp function calls are faster, by approximately a factor of two.
|
|
|
657 However, defining inline functions (via defsubst) still makes sense
|
|
|
658 for tight loops.
|
|
|
659
|
|
|
660 *** Finally, a few functions have had dramatic performance
|
|
|
661 improvements. For example, `(last long-list)' is now 30 times faster.
|
|
|
662
|
|
|
663 Of course, your mileage will vary.
|
|
|
664
|
|
|
665 Many operations do not see any improvement. Surprisingly, running
|
|
|
666 (font-lock-fontify-buffer) does not use the Lisp engine much at all.
|
|
|
667 Speeding up your favorite slow operation is an excellent project to
|
|
|
668 improve XEmacs. Don't forget to profile!
|
|
|
669
|
|
430
|
670 ** Native widgets can be displayed in buffers.
|
|
|
671
|
|
|
672 The glyph system has been extended to allow the display of glyphs that
|
|
|
673 are implemented as native window-system widgets. Thus you can embed
|
|
|
674 buttons, scrollbars, combo boxes, edit fields and progress gauges in a
|
|
|
675 buffer. As a side effect subwindow support now works once again.
|
|
|
676
|
|
440
|
677 All of this is still fairly experimental and there is no
|
|
442
|
678 documentation. The current APIs might change in a future version of
|
|
479
|
679 XEmacs. Some widgets are only available under MS Windows. See the
|
|
440
|
680 file glyphs-test.el in the XEmacs src distribution for examples of
|
|
|
681 usage.
|
|
430
|
682
|
|
440
|
683 The buffers-tab functionality and progress gauge have been implemented
|
|
|
684 using this feature.
|
|
430
|
685
|
|
464
|
686 ** Case translation now supports international characters.
|
|
|
687
|
|
|
688 *** Instead of being lists of 256-character strings, case tables are
|
|
|
689 now opaque objects. The interface to access them is almost the same,
|
|
|
690 except it now works for international characters, and you can set the
|
|
|
691 case pairs using `put-case-table-pair'. `set-case-table' and friends
|
|
|
692 still support the old list/string based interface for backward
|
|
|
693 compatibility.
|
|
|
694
|
|
|
695 *** As a consequence of this change, functions `downcase' and `upcase'
|
|
|
696 as well as all the case-transformation commands now work with
|
|
|
697 non-ASCII characters. Built-in tables cover all the Latin character
|
|
|
698 sets that we support. If your language has a distinction between
|
|
|
699 upper and lower case that is not handled by XEmacs/Mule, please let us
|
|
|
700 know.
|
|
|
701
|
|
|
702 *** The code that implements case-insensitive search has been modified
|
|
|
703 to respect the case table settings. This also applies to regexp
|
|
|
704 search.
|
|
|
705
|
|
479
|
706 ** Syntax tables may now be specified for a part of a buffer by
|
|
|
707 attaching the `syntax-table' property to an extent. For compatibility
|
|
|
708 with GNU Emacs, you may use the text-property interface to achieve the
|
|
|
709 same result.
|
|
|
710
|
|
464
|
711 ** Values of variables `user-init-file' and `user-init-directory' are
|
|
|
712 now absolute file/directory names. Previously, both variables used to
|
|
|
713 be relative to `(concat "~" init-file-user)'. This turned out to be
|
|
|
714 too complicated for most packages (and some core Lisp files) to use
|
|
|
715 correctly. Also, the `init-file-user' variable has been obsoleted in
|
|
|
716 the process.
|
|
440
|
717
|
|
442
|
718 The user-visible options like `-u' have not changed their behavior.
|
|
430
|
719
|
|
428
|
720 ** XEmacs finally has an automated test suite!
|
|
|
721 Although this is not yet very sophisticated, it is already responsible
|
|
|
722 for several important bug fixes in XEmacs. To try it out, simply use
|
|
|
723 the makefile target `make check' after building XEmacs.
|
|
|
724
|
|
|
725 ** Hash tables have been reimplemented.
|
|
|
726 As was pointed out above, the standard interface to hash tables is now
|
|
|
727 the Common Lisp interface, as described in Common Lisp, the Language
|
|
|
728 (CLtL2, by Steele). The older interface (functions with names
|
|
|
729 containing the phrase `hashtable') will continue to work, but the
|
|
|
730 preferred interface now has names containing the phrase `hash-table'.
|
|
|
731
|
|
|
732 Here's the executive overview: create hash tables using
|
|
|
733 make-hash-table, and use gethash, puthash, remhash, maphash and
|
|
|
734 clrhash to manipulate entries in the hash table. See the (updated)
|
|
|
735 Lisp Reference Manual for details.
|
|
|
736
|
|
|
737 ** Lisp code handles circular lists much more robustly.
|
|
|
738 Many basic lisp functions used to loop forever when given a circular
|
|
|
739 list, expecting you to C-g (quit) out of the loop. Now this is more
|
|
|
740 likely to trigger a `circular-list' error. Printing a circular list
|
|
|
741 now results in something like this:
|
|
|
742
|
|
|
743 (let ((x (cons 'foo 'foo)))
|
|
|
744 (setcdr x x)
|
|
|
745 x)
|
|
|
746 => (foo ... <circular list>)
|
|
|
747
|
|
|
748 An extra bonus is that checking for circularities is not just
|
|
|
749 friendlier, but actually faster than checking for C-g.
|
|
|
750
|
|
430
|
751 ** Functions for decoding base64 encoding are now available; see
|
|
|
752 `base64-encode-region', `base64-encode-string', `base64-decode-region'
|
|
|
753 and `base64-decode-string'.
|
|
428
|
754
|
|
440
|
755 ** The functions `read-string', `read-expression', `eval-minibuffer',
|
|
|
756 `read-variable', `read-command', `read-function', `read-number',
|
|
|
757 `read-shell-command', `read-from-minibuffer', and `completing-read'
|
|
|
758 now take an additional argument which specifies the default value. If
|
|
|
759 this argument is non-nil, it should be a string; that string is used
|
|
|
760 in two ways:
|
|
|
761
|
|
464
|
762 * It is returned if the user enters empty input.
|
|
|
763 * It is available as the logical "future" entry, by pressing the down
|
|
|
764 arrow.
|
|
440
|
765
|
|
|
766 ** LDAP changes.
|
|
|
767
|
|
|
768 *** The LDAP interface now consists of two layers, a low-level layer
|
|
|
769 that closely matches the LDAP C API, and a more convenient
|
|
|
770 higher-level set of functions.
|
|
|
771
|
|
|
772 *** The low-level functions that used to be named *-internal are now
|
|
|
773 named more simply: `ldap-open', `ldap-close', `ldap-search-basic',
|
|
|
774 `ldap-add', and `ldap-modify'. They should be used directly for very
|
|
|
775 specific purposes (such as multiple operations on a connection) only.
|
|
|
776
|
|
|
777 *** The higher-level functions provide a more convenient way to access
|
|
|
778 LDAP directories hiding the subtleties of handling the connection,
|
|
|
779 translating arguments and ensuring compliance with LDAP
|
|
|
780 internationalization rules and formats (currently partly implemented
|
|
|
781 only.) This layer provides atomic operations for searches,
|
|
|
782 modification, addition and deletion of multiple entries at once:
|
|
|
783 `ldap-search-entries', `ldap-add-entries', `ldap-delete-entries', and
|
|
|
784 `ldap-modify-entries'.
|
|
|
785
|
|
|
786 *** To maintain compatibility with previous code, the now obsolete
|
|
|
787 function `ldap-search' is now merely a wrapper that calls either
|
|
|
788 `ldap-search-basic' or `ldap-search-entries'. Please don't use the
|
|
|
789 `ldap-search' function in your new programs -- a direct call to one of
|
|
|
790 the two replacements is more efficient and unambiguous.
|
|
|
791
|
|
430
|
792 ** The arguments to `locate-file' are now more Lisp-like. As before,
|
|
|
793 the usage is:
|
|
428
|
794
|
|
|
795 (locate-file FILENAME PATH-LIST &optional SUFFIXES MODE)
|
|
|
796
|
|
|
797 Except that SUFFIXES are now a list of strings instead of a single,
|
|
|
798 colon-separated string. MODE is now a symbol or a list of symbols
|
|
|
799 (symbols `exists', `executable', `writable', and `readable' are
|
|
|
800 supported) instead of an integer code. See the documentation for
|
|
|
801 details. Of course, the old form is still accepted for backward
|
|
|
802 compatibility.
|
|
|
803
|
|
|
804 Several bugs in locate-file have been fixed, most notably its failure
|
|
|
805 to call expand-file-name on elements of PATH-LIST. Because of that
|
|
|
806 elements of load-path of the form "~/..." used to not work.
|
|
|
807 locate-file is now guaranteed to expand files during its course of
|
|
|
808 operation.
|
|
|
809
|
|
|
810 ** `translate-region' has been improved in several ways. Its TABLE
|
|
|
811 argument used to be a 256-character string. In addition to this, it
|
|
|
812 can now also be a vector or a char-table, which makes the function
|
|
464
|
813 useful for Mule, which it wasn't. If TABLE is a vector or a generic
|
|
428
|
814 char-table, you can map characters to strings instead of to other
|
|
|
815 characters. For instance:
|
|
|
816
|
|
|
817 (let ((table (make-char-table 'generic)))
|
|
|
818 (put-char-table ?a "the letter a" table)
|
|
|
819 (put-char-table ?b "" table)
|
|
|
820 (put-char-table ?c ?\n table)
|
|
|
821 (translate-region (point-min) (point-max) table))
|
|
|
822
|
|
430
|
823 ** The new form `ignore-file-errors', similar to `ignore-errors' may
|
|
|
824 be used as a short-hand for condition-case when you wish to ignore
|
|
|
825 file-related error. For example:
|
|
|
826
|
|
|
827 (ignore-file-errors (delete-file "foo"))
|
|
|
828
|
|
|
829 ** The first argument to `intern-soft' may now also be a symbol, like
|
|
|
830 with `unintern'. If given a symbol, `intern-soft' will look for that
|
|
|
831 exact symbol rather than for any string. This is useful when you want
|
|
|
832 to check whether a specific symbol is interned in an obarray, e.g.:
|
|
|
833
|
|
|
834 (intern "foo")
|
|
|
835 (intern-soft "foo")
|
|
|
836 => foo
|
|
|
837 (intern-soft (make-symbol "foo"))
|
|
|
838 => nil
|
|
|
839
|
|
428
|
840 ** The `keywordp' function now returns non-nil only on symbols
|
|
|
841 interned in the global obarray. For example:
|
|
|
842
|
|
|
843 (keywordp (intern ":foo" [0]))
|
|
|
844 => nil
|
|
|
845 (keywordp (intern ":foo")) ; The same as (keywordp :foo)
|
|
|
846 => t
|
|
|
847
|
|
442
|
848 This behavior is compatible with other code which treats symbols
|
|
428
|
849 beginning with colon as keywords only if they are interned in the
|
|
464
|
850 global obarray. `keywordp' used to wrongly return t in both above
|
|
|
851 cases.
|
|
|
852
|
|
|
853 ** The function `replace-in-string' has been rewritten to use
|
|
|
854 `replace-match'. This not only makes it much faster, but adds all the
|
|
|
855 features of `replace-match'.
|
|
428
|
856
|
|
442
|
857 ** New variables `this-command-properties' and
|
|
|
858 `last-command-properties' are now available for communication between
|
|
|
859 consecutive commands. Commands should use these to communicate with
|
|
|
860 the pre/post-command hooks, subsequent commands, wrapping commands,
|
|
|
861 etc. in preference to looking at and/or setting `this-command'.
|
|
|
862
|
|
|
863 ** New functions `add-one-shot-hook' and `add-local-one-shot-hook' make
|
|
|
864 it possible to add a "one-shot" hook, which is to say a hook that runs
|
|
|
865 only once, and automatically removes itself after the first time it
|
|
|
866 has run.
|
|
|
867
|
|
|
868 ** The descriptor that specifies the text of a menu item can now be an
|
|
464
|
869 evaluated expression. This makes it parallel with other descriptors,
|
|
|
870 which can also be expressions.
|
|
442
|
871
|
|
428
|
872
|
|
|
873 * Changes in XEmacs 21.0
|
|
|
874 ========================
|
|
|
875
|
|
|
876 ** XEmacs has been unbundled into constituent installable packages.
|
|
|
877 See the Info documentation under "Packages" for more information.
|
|
|
878 See the file `etc/PACKAGES' in the distribution for a partial list of
|
|
|
879 packages available at the time of the 21.0 release.
|
|
|
880
|
|
|
881 ** XEmacs is now supported under Microsoft Windows 95/98 and Windows
|
|
|
882 NT operating systems. For starters, look at the XEmacs on Windows FAQ
|
|
|
883 at <URL:http://jagor.srce.hr/~hniksic/xemacs-on-windows-faq.txt>. To
|
|
|
884 discuss Windows-specific issues, subscribe to the mailing list at
|
|
|
885 <xemacs-nt-request@xemacs.org>.
|
|
|
886
|
|
|
887 ** XEmacs will now use `XEmacs' as its application class if it finds
|
|
|
888 any `XEmacs' resources in the resource database. Otherwise, it will
|
|
|
889 continue to use the `Emacs' class.
|
|
|
890
|
|
|
891 ** The options menu has been ported to Custom.
|
|
|
892 This means that each entry in the options menu acts as if you had customized
|
|
|
893 the corresponding variable by hand. ### WARNING: there is currently no
|
|
|
894 upgrading function to help you port your old options settings to the new
|
|
|
895 format. Consequently, if you want to modify the options for XEmacs 21, you
|
|
|
896 will have to set them all again through the menu, and remove the code loading
|
|
|
897 .xemacs-options from your .emacs.
|
|
|
898
|
|
|
899 ** When the Zmacs region is active, `M-x query-replace' and the other
|
|
|
900 replace commands now operate on the region contents only.
|
|
|
901
|
|
|
902 ** XEmacs now is able to choose X visuals and use private colormaps.
|
|
|
903 The '-visual <visualStr>' command line option or the '.EmacsVisual'
|
|
|
904 Xresource controls which visual XEmacs will use, and
|
|
|
905 '-privateColormap' or '.privateColormap' will force XEmacs to create a
|
|
|
906 private colormap for use. The syntax for the visual string is
|
|
|
907 "<visual><bitdepth>" where <visual> is one of 'StaticColor',
|
|
|
908 'TrueColor', 'GrayScale', 'PseudoColor' or 'DirectColor' and
|
|
|
909 <bitdepth> is the appropriate number of bits per pixel. If an invalid
|
|
|
910 or non-supported combination is entered, XEmacs attempts to find a happy
|
|
|
911 medium. The X creation mechanism will then determine if it needs to
|
|
|
912 create a colormap for use, or the presence of the private flags will
|
|
|
913 force it to create it.
|
|
|
914
|
|
|
915 ** The `imenu' package has been ported to XEmacs and is available as a
|
|
|
916 package.
|
|
|
917
|
|
|
918 ** `echo-keystrokes' can now be a floating-point number, so that you
|
|
|
919 can set it to intervals shorter than one second.
|
|
|
920
|
|
|
921 (setq echo-keystrokes 0.1)
|
|
|
922
|
|
|
923 ** The new command `center-to-window-line' works like `recenter'
|
|
|
924 (bound to `C-l'), only it does not redisplay the whole display area.
|
|
|
925
|
|
|
926 ** The M-. command will now first search through exact tags matches,
|
|
|
927 and then through inexact matches, as one would expect.
|
|
|
928
|
|
|
929 ** The new variable `user-full-name' can be used to customize one's
|
|
|
930 name when using the Emacs mail and news reading facilities.
|
|
|
931
|
|
|
932 Normally, `user-full-name' is a function that returns the full name of
|
|
|
933 a user or UID, as specified by the system -- for instance,
|
|
|
934 (user-full-name "root") returns something like "Super-User". However,
|
|
|
935 when the function is called without arguments, it will return the
|
|
|
936 value of the `user-full-name' variable. The `user-full-name' variable
|
|
|
937 is initialized using the environment variable NAME and (failing that)
|
|
|
938 the user's system name.
|
|
|
939
|
|
|
940 The behavior of the `user-full-name' function with an argument
|
|
|
941 specified is unchanged.
|
|
|
942
|
|
|
943 ** The new command `M-x customize-changed-options' lets you customize
|
|
|
944 all the options whose default values have changed in recent Emacs
|
|
|
945 versions. You specify a previous Emacs version number as argument,
|
|
|
946 and the command creates a customization buffer showing all the
|
|
|
947 customizable options whose default values were changed since that
|
|
|
948 version.
|
|
|
949
|
|
|
950 If you don't specify a particular version number argument, then the
|
|
|
951 customization buffer shows all the customizable options for which
|
|
|
952 Emacs versions of changes are recorded.
|
|
|
953
|
|
|
954 ** The new command `add-log-convert' can be used to convert the
|
|
|
955 old-style (pre-20.3) ChangeLog buffers to new style, for
|
|
|
956 consistency. A reminder: if you wish to revert to old-style
|
|
|
957 ChangeLogs instead, customize the value of `add-log-time-format'
|
|
|
958 variable.
|
|
|
959
|
|
|
960 ** The new command `zap-up-to-char' is now available. It is similar
|
|
|
961 to `zap-to-char', except that it does not delete the searched-for
|
|
|
962 character. It is not bound to a key by default.
|
|
|
963
|
|
|
964 ** You can now store a number into a register with `C-u NUMBER C-x r n'
|
|
|
965 REG, increment it by INC with `C-u INC C-x r + REG' (to increment by
|
|
|
966 one, omit C-u INC), and insert it in the buffer with `C-x r g REG'.
|
|
|
967 This is useful for writing keyboard macros.
|
|
|
968
|
|
|
969 ** The M-: command, when given a prefix argument, will now insert its
|
|
|
970 result to the current buffer.
|
|
|
971
|
|
|
972 ** The `C-h c' command, when given a prefix argument, will now insert
|
|
|
973 the message into the current buffer.
|
|
|
974
|
|
|
975 ** Horizontally split windows may now be dragged using the mouse.
|
|
|
976 Because of this, the dividers between vertical windows are always
|
|
|
977 visible. To turn it off, set `vertical-divider-always-visible-p' to
|
|
|
978 nil.
|
|
|
979
|
|
|
980 ** XEmacs/Mule (internationalization) changes.
|
|
|
981
|
|
|
982 *** Mule support now works on TTY's. Use `set-terminal-coding-system'
|
|
|
983 and `set-keyboard-coding-system' to specify the coding system of your
|
|
|
984 display and keyboard.
|
|
|
985
|
|
|
986 *** Egg/SJ3 input method is now officially supported. Quail and
|
|
|
987 Egg/Skk have been available through the generalized Leim since 20.3.
|
|
|
988
|
|
|
989 *** Localized Japanese menubars are available if XEmacs is built with
|
|
|
990 XFONTSET and either the X11 libraries are built with X_LOCALE defined
|
|
|
991 or the native C libraries support Japanese localization. This has
|
|
|
992 been available since 20.3, only it hasn't been announced before.
|
|
|
993
|
|
|
994 ** Jamie Zawinski's `gdb-highlight' extension is now distributed with
|
|
|
995 the `debug' package. gdb-highlight makes most objects printed in a
|
|
|
996 gdb buffer be mouse-sensitive: as text shows up in the buffer, it is
|
|
|
997 parsed, and objects which are recognized have context-sensitive
|
|
|
998 commands attached to them. To use it, add the following to `.emacs':
|
|
|
999
|
|
|
1000 (add-hook 'gdb-mode-hook (lambda () (require 'gdb-highlight)))
|
|
|
1001
|
|
|
1002 ** The package popper.el is now included in the edit-utils package.
|
|
|
1003 It has been greatly enhanced with respect to the one once included
|
|
|
1004 with the ilisp package and should work well under XEmacs 21.0.
|
|
|
1005
|
|
|
1006 ** Gnuserv changes
|
|
|
1007
|
|
|
1008 *** Like the old 'gnudoit' program. Gnuclient -batch now can read from stdin.
|
|
|
1009
|
|
|
1010 *** Gnuclient -batch no longer breaks off the output at the first LF.
|
|
|
1011
|
|
|
1012 ** C mode changes
|
|
|
1013
|
|
|
1014 *** Multiline macros are now handled, both as they affect indentation,
|
|
|
1015 and as recognized syntax. New syntactic symbol cpp-macro-cont is
|
|
|
1016 assigned to second and subsequent lines of a multiline macro
|
|
|
1017 definition.
|
|
|
1018
|
|
|
1019 *** A new style "user" which captures all non-hook-ified
|
|
|
1020 (i.e. top-level) .emacs file variable setings and customizations.
|
|
|
1021 Style "cc-mode" is an alias for "user" and is deprecated. "gnu" style
|
|
|
1022 is still the default however.
|
|
|
1023
|
|
|
1024 *** "java" style now conforms to Sun's JDK coding style.
|
|
|
1025
|
|
|
1026 *** There are new commands c-beginning-of-defun, c-end-of-defun which
|
|
|
1027 are alternatives which you could bind to C-M-a and C-M-e if you prefer
|
|
|
1028 them. They do not have key bindings by default.
|
|
|
1029
|
|
|
1030 *** New and improved implementations of M-a (c-beginning-of-statement)
|
|
|
1031 and M-e (c-end-of-statement).
|
|
|
1032
|
|
|
1033 *** C++ namespace blocks are supported, with new syntactic symbols
|
|
|
1034 namespace-open, namespace-close, and innamespace.
|
|
|
1035
|
|
|
1036 *** File local variable settings of c-file-style and c-file-offsets
|
|
|
1037 makes the style variables local to that buffer only.
|
|
|
1038
|
|
|
1039 *** New indentation functions c-lineup-close-paren,
|
|
|
1040 c-indent-one-line-block, c-lineup-dont-change.
|
|
|
1041
|
|
|
1042 *** Improvements (hopefully!) to the way CC Mode is loaded. You
|
|
|
1043 should now be able to do a (require 'cc-mode) to get the entire
|
|
|
1044 package loaded properly for customization in your .emacs file. A new
|
|
|
1045 variable c-initialize-on-load controls this and is t by default.
|
|
|
1046
|
|
|
1047 ** In Text mode, now only blank lines separate paragraphs.
|
|
|
1048 This makes it possible to get the full benefit of Adaptive Fill mode
|
|
|
1049 in Text mode, and other modes derived from it (such as Mail mode).
|
|
|
1050 TAB in Text mode now runs the command indent-relative; this makes a
|
|
|
1051 practical difference only when you use indented paragraphs.
|
|
|
1052
|
|
|
1053 As a result, the old Indented Text mode is now identical to Text mode,
|
|
|
1054 and is an alias for it.
|
|
|
1055
|
|
|
1056 If you want spaces at the beginning of a line to start a paragraph,
|
|
|
1057 use the new mode, Paragraph Indent Text mode.
|
|
|
1058
|
|
|
1059 ** Changes to Gnus, the XEmacs newsreader.
|
|
|
1060
|
|
|
1061 *** New functionality for using Gnus as an offline newsreader has been
|
|
|
1062 added. A plethora of new commands and modes have been added. See the
|
|
|
1063 Gnus manual for the full story.
|
|
|
1064
|
|
|
1065 *** The nndraft backend has returned, but works differently than
|
|
|
1066 before. All Message buffers are now also articles in the nndraft
|
|
|
1067 group, which is created automatically.
|
|
|
1068
|
|
|
1069 *** `gnus-alter-header-function' can now be used to alter header
|
|
|
1070 values.
|
|
|
1071
|
|
|
1072 *** `gnus-summary-goto-article' now accept Message-ID's.
|
|
|
1073
|
|
|
1074 *** A new Message command for deleting text in the body of a message
|
|
|
1075 outside the region: `C-c C-v'.
|
|
|
1076
|
|
|
1077 *** You can now post to component group in nnvirtual groups with
|
|
|
1078 `C-u C-c C-c'.
|
|
|
1079
|
|
|
1080 *** `nntp-rlogin-program' -- new variable to ease customization.
|
|
|
1081
|
|
|
1082 *** `C-u C-c C-c' in `gnus-article-edit-mode' will now inhibit
|
|
|
1083 re-highlighting of the article buffer.
|
|
|
1084
|
|
|
1085 *** New element in `gnus-boring-article-headers' -- `long-to'.
|
|
|
1086
|
|
|
1087 *** `M-i' symbolic prefix command. See the section "Symbolic
|
|
|
1088 Prefixes" in the Gnus manual for details.
|
|
|
1089
|
|
|
1090 *** `L' and `I' in the summary buffer now take the symbolic prefix
|
|
|
1091 `a' to add the score rule to the "all.SCORE" file.
|
|
|
1092
|
|
|
1093 *** `gnus-simplify-subject-functions' variable to allow greater
|
|
|
1094 control over simplification.
|
|
|
1095
|
|
|
1096 *** `A T' -- new command for fetching the current thread.
|
|
|
1097
|
|
|
1098 *** `/ T' -- new command for including the current thread in the
|
|
|
1099 limit.
|
|
|
1100
|
|
|
1101 *** `M-RET' is a new Message command for breaking cited text.
|
|
|
1102
|
|
|
1103 *** \\1-expressions are now valid in `nnmail-split-methods'.
|
|
|
1104
|
|
|
1105 *** The `custom-face-lookup' function has been removed.
|
|
|
1106 If you used this function in your initialization files, you must
|
|
|
1107 rewrite them to use `face-spec-set' instead.
|
|
|
1108
|
|
|
1109 *** Cancelling now uses the current select method. Symbolic prefix
|
|
|
1110 `a' forces normal posting method.
|
|
|
1111
|
|
|
1112 *** New command to translate M******** sm*rtq**t*s into proper text
|
|
|
1113 -- `W d'.
|
|
|
1114
|
|
|
1115 *** For easier debugging of nntp, you can set `nntp-record-commands'
|
|
|
1116 to a non-nil value.
|
|
|
1117
|
|
|
1118 *** nntp now uses ~/.authinfo, a .netrc-like file, for controlling
|
|
|
1119 where and how to send AUTHINFO to NNTP servers.
|
|
|
1120
|
|
|
1121 *** A command for editing group parameters from the summary buffer
|
|
|
1122 has been added.
|
|
|
1123
|
|
|
1124 *** A history of where mails have been split is available.
|
|
|
1125
|
|
|
1126 *** A new article date command has been added -- `article-date-iso8601'.
|
|
|
1127
|
|
|
1128 *** Subjects can be simplified when threading by setting
|
|
|
1129 `gnus-score-thread-simplify'.
|
|
|
1130
|
|
|
1131 *** A new function for citing in Message has been added --
|
|
|
1132 `message-cite-original-without-signature'.
|
|
|
1133
|
|
|
1134 *** `article-strip-all-blank-lines' -- new article command.
|
|
|
1135
|
|
|
1136 *** A new Message command to kill to the end of the article has
|
|
|
1137 been added.
|
|
|
1138
|
|
|
1139 *** A minimum adaptive score can be specified by using the
|
|
|
1140 `gnus-adaptive-word-minimum' variable.
|
|
|
1141
|
|
|
1142 *** The "lapsed date" article header can be kept continually
|
|
|
1143 updated by the `gnus-start-date-timer' command.
|
|
|
1144
|
|
|
1145 *** Web listserv archives can be read with the nnlistserv backend.
|
|
|
1146
|
|
|
1147 *** Old dejanews archives can now be read by nnweb.
|
|
|
1148
|
|
|
1149 *** Byte-compilation of user-specs now works under XEmacs.
|
|
|
1150
|
|
|
1151 ** The `dir' files are no longer essential for functioning of the Info
|
|
|
1152 subsystem. If the `dir' file does not exist in an Info directory, the
|
|
|
1153 relevant information will be generated on-the-fly.
|
|
|
1154
|
|
|
1155 This behavior can be customized, look for `Info-auto-generate-directory'
|
|
|
1156 and `Info-save-auto-generated-dir' in the `info' customization group.
|
|
|
1157
|
|
|
1158
|
|
|
1159 * Lisp and internal changes in XEmacs 21.0
|
|
|
1160 ==========================================
|
|
|
1161
|
|
|
1162 ** It is now possible to build XEmacs with support for 31-bit Lisp
|
|
|
1163 integers (normally, Lisp integers are only 28 bits wide on 32-bit
|
|
|
1164 machines.) Configure with --use-minimal-tagbits to test. With this
|
|
|
1165 change, the maximum buffer size on 32-bit machines is increased from
|
|
|
1166 128M to 1G. This setting will be made default in a future XEmacs
|
|
|
1167 version.
|
|
|
1168
|
|
|
1169 ** Specifier changes.
|
|
|
1170
|
|
|
1171 *** When instantiating a specifier, the window locale now has a higher
|
|
|
1172 precedence than the buffer locale. This is because the window locale
|
|
|
1173 is more specific than the buffer locale.
|
|
|
1174
|
|
|
1175 *** The new macro `let-specifier' can be used to temporarily add
|
|
|
1176 specifications to specifiers. See the documentation for details.
|
|
|
1177
|
|
|
1178 *** The new specifiers `vertical-scrollbar-visible-p' and
|
|
|
1179 `horizontal-scrollbar-visible-p' may be used to control scrollbar
|
|
|
1180 visibility. Previously, the only way to remove a scrollbar was to set
|
|
|
1181 its size to 0. This method is still supported for backward
|
|
|
1182 compatibility.
|
|
|
1183
|
|
|
1184 *** The new specifiers `scrollbar-on-left-p' and `scrollbar-on-top-p'
|
|
|
1185 may be used to control the position of the vertical and horizontal
|
|
|
1186 toolbar. Previously, their position could be changed only through the
|
|
|
1187 use of X resources.
|
|
|
1188
|
|
|
1189 *** The new draggable vertical dividers between windows may be turned
|
|
|
1190 off using the `vertical-divider-always-visible-p' specifier. When
|
|
|
1191 this is set to nil, the vertical dividers between windows are shown
|
|
|
1192 only when needed, and they are not draggable.
|
|
|
1193
|
|
|
1194 Other properties of the vertical dividers may be controlled using
|
|
|
1195 `vertical-divider-shadow-thickness', `vertical-divider-line-width' and
|
|
|
1196 `vertical-divider-spacing' specifiers, which see.
|
|
|
1197
|
|
|
1198 ** Frame focus management changes.
|
|
|
1199
|
|
|
1200 *** When the variable focus-follows-mouse is non-nil, `select-frame'
|
|
|
1201 no longer permanently selects a different frame. The frame selection
|
|
|
1202 is temporary and is reverted when the current command terminates, much
|
|
|
1203 like the buffer selected by `set-buffer'. This is the same as in FSF
|
|
|
1204 Emacs.
|
|
|
1205
|
|
|
1206 *** The new function `focus-frame' sets the window system focus to
|
|
|
1207 FRAME (and selects it), regardless of the value of
|
|
|
1208 `focus-follows-mouse'. Doing this is not well behaved, so be
|
|
|
1209 absolutely sure that you want this.
|
|
|
1210
|
|
|
1211 The code that uses `select-frame' only to get the window manager focus
|
|
|
1212 should be changed to use `set-frame-focus' instead, so that they keep
|
|
|
1213 working when `focus-follows-mouse' is non-nil.
|
|
|
1214
|
|
|
1215 *** The special forms `save-selected-frame' and `with-selected-frame'
|
|
|
1216 can now be used to temporarily change selected frame.
|
|
|
1217
|
|
|
1218 *** The behavior of `other-frame' command (`C-x 5 o') is unaffected by
|
|
|
1219 these changes.
|
|
|
1220
|
|
|
1221 ** The function `select-window' now has an optional second argument
|
|
|
1222 NORECORD which if non-nil inhibits the recording of a buffer change.
|
|
|
1223
|
|
|
1224 ** The function `vertical-motion' now correctly handles the second,
|
|
|
1225 optional WINDOW argument. A new third argument PIXELS, if non-nil,
|
|
|
1226 indicates that the returned motion should be in pixels.
|
|
|
1227
|
|
|
1228 ** The new function `vertical-motion-pixels' is similar to
|
|
|
1229 vertical-motion but takes as input a vertical motion in pixels.
|
|
|
1230
|
|
|
1231 ** The new functions window-text-area-pixel-{width,height,edges} can
|
|
|
1232 be used to obtain information about the text-displaying area of a
|
|
|
1233 window.
|
|
|
1234
|
|
|
1235 ** The new functions `shrink-window-pixels' and `enlarge-window-pixels'
|
|
|
1236 can be used to adjust the size of a window by a pixel amount.
|
|
|
1237
|
|
|
1238 ** The new function `window-displayed-text-pixel-height' can be used
|
|
|
1239 to determine the height of the text actually displayed in a window.
|
|
|
1240
|
|
|
1241 ** The arithmetic comparison functions <, >, =, /= now accept a
|
|
|
1242 variable number of arguments.
|
|
|
1243
|
|
|
1244 This means that if you want to test whether A < B < C, you can write
|
|
|
1245 it as (< A B C) instead of (and (< A B) (< B C)). Likewise,
|
|
|
1246 (apply #'> LIST) now tests if LIST is monotonously increasing -- and
|
|
|
1247 so on.
|
|
|
1248
|
|
|
1249 ** The XEmacs hashtables now have a consistent read/print syntax.
|
|
|
1250 This means that a hashtable will be readably printed in a
|
|
|
1251 structure-like form:
|
|
|
1252
|
|
|
1253 #s(hashtable size 2 data (key1 value1 key2 value2))
|
|
|
1254
|
|
|
1255 When XEmacs reads this form, it will create a new hashtable according
|
|
|
1256 to description. This allows you to easily dump hashtables to files
|
|
|
1257 using `prin1', and read them back in using `read'.
|
|
|
1258
|
|
|
1259 If `print-readably' is non-nil, a more relaxed syntax is used; for
|
|
|
1260 instance:
|
|
|
1261
|
|
|
1262 #<hashtable size 2/13 data (key1 value1 key2 value2) 0x874d>
|
|
|
1263
|
|
|
1264 ** It is now possible to build XEmacs with LDAP support.
|
|
|
1265 You will need to install a LDAP library first. The following have
|
|
|
1266 been tested:
|
|
|
1267 - LDAP 3.3 from the University of Michigan
|
|
|
1268 (get it from <URL:http://www.umich.edu/~dirsvcs/ldap/>)
|
|
|
1269 - OpenLDAP 1.0.3 from the OpenLDAP Foundation
|
|
|
1270 (get it from <URL:http://www.openldap.org/>)
|
|
|
1271 - LDAP SDK 1.0 from Netscape Corp.
|
|
|
1272 (get it from <URL:http://developer.netscape.com/>)
|
|
|
1273
|
|
|
1274 ** When profiling is in effect, a call-count of all recorded functions
|
|
|
1275 is now calculated. This information is stored in
|
|
|
1276 `call-count-profile-table', and is utilized by `profile-results' as
|
|
|
1277 well as the new command `profile-call-count-results'.
|
|
|
1278
|
|
|
1279 ** It is now an error to change the value of a symbol whose name
|
|
|
1280 starts with a colon, if it is interned in the standard obarray.
|
|
|
1281
|
|
|
1282 However, setting such a symbol to its proper value, which is that
|
|
|
1283 symbol itself, is not an error. This is for the sake of programs that
|
|
|
1284 support pre-19.12 XEmacs and pre-20 GNU Emacs by explicitly setting
|
|
|
1285 these variables to themselves.
|
|
|
1286
|
|
|
1287 ** The `concat' function no longer accepts integer arguments.
|
|
|
1288
|
|
|
1289 ** The new function `string' concatenates all its argument characters
|
|
|
1290 and returns the resulting string. This is consistent with other
|
|
|
1291 functions, like `list', `vector', etc.
|
|
|
1292
|
|
|
1293 ** The function `temp-directory' is now available to return the
|
|
|
1294 directory to store temporary files. On Unix this will be obtained
|
|
|
1295 from TMPDIR, defaulting to `/tmp'.
|
|
|
1296
|
|
|
1297 ** The function load-average now accepts an optional argument
|
|
|
1298 USE-FLOATS. If it is non-nil, the load average values are returned as
|
|
|
1299 floating point numbers, rather than as integers to be divided by 100.
|
|
|
1300
|
|
|
1301 ** The `make-event' function now supports the TYPE and PLIST
|
|
|
1302 arguments, which can be used to create various events from Lisp. See
|
|
|
1303 the documentation for details.
|
|
|
1304
|
|
|
1305 ** `function-interactive' is a new function that returns the
|
|
|
1306 interactive specification of a funcallable object.
|
|
|
1307
|
|
|
1308 ** The new `lmessage' function allows printing of a formatted message
|
|
|
1309 with a particular label.
|
|
|
1310
|
|
|
1311 (lmessage 'progress "Processing... %d" counter)
|
|
|
1312
|
|
|
1313 This function is more convenient than `display-message' because it
|
|
|
1314 automatically applies `format' to its arguments.
|
|
|
1315
|
|
|
1316 ** The new `lwarn' function, analogous to `lmessage', allows printing
|
|
|
1317 a formatted warning, with a non-default CLASS or LABEL.
|
|
|
1318
|
|
|
1319 ** The new function `split-path' can now be used to explode the
|
|
|
1320 components of a colon-separated search path into a list.
|
|
|
1321
|
|
|
1322 (split-path "foo:bar")
|
|
|
1323 => ("foo" "bar")
|
|
|
1324
|
|
|
1325 ** Specifiers and symbols whose value is a specifier are now allowed
|
|
|
1326 as modeline specifications.
|
|
|
1327
|
|
|
1328 ** defcustom now accepts the keyword `:version'. Use this to specify
|
|
|
1329 in which version of Emacs a certain variable's default value changed.
|
|
|
1330 For example,
|
|
|
1331
|
|
|
1332 (defcustom foo-max 34 "*Maximum number of foo's allowed."
|
|
|
1333 :type 'integer
|
|
|
1334 :group 'foo
|
|
|
1335 :version "21.0")
|
|
|
1336
|
|
|
1337 This information is used to control the customize-changed-options
|
|
|
1338 command.
|
|
|
1339
|
|
|
1340 ** The line number tracking in modeline is now efficient, even for
|
|
|
1341 very large buffers. This is achieved by caching the line numbers of
|
|
|
1342 recent buffer positions, and reusing them. This cache is used only in
|
|
|
1343 the buffers where `line-number-mode' is in effect.
|
|
|
1344
|
|
|
1345 ** When the new GNU Malloc aka Doug Lea Malloc is available, it will
|
|
|
1346 be used. This should result in better performance on Linux systems
|
|
|
1347 with libc6.
|
|
|
1348
|
|
|
1349 ** The code XEmacs uses to assemble its various paths into the
|
|
|
1350 directory hierarchy has been rewritten to support the package system.
|
|
|
1351 Look under "Startup Paths" in the Info documentation for more
|
|
|
1352 information.
|
|
|
1353
|
|
|
1354 *** site-lisp is no longer part of the load-path by default.
|
|
|
1355 Its use is deprecated, but you can specify --with-site-lisp=yes at the
|
|
|
1356 configure command line to get it back.
|
|
|
1357
|
|
|
1358 *** `Info-default-directory-list' is now obsolete. If you want to
|
|
|
1359 change the path which XEmacs uses to search for info files, set
|
|
|
1360 `Info-directory-list' instead.
|
|
464
|
1361
|
|
|
1362
|
|
|
1363 * For older news, see the file ONEWS.
|
