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1 GNU Emacs NEWS -- history of user-visible changes.
2
3 Copyright (C) 2010 Free Software Foundation, Inc.
4 See the end of the file for license conditions.
5
6 Please send Emacs bug reports to bug-gnu-emacs@gnu.org.
7 If possible, use M-x report-emacs-bug.
8
9 This file is about changes in Emacs version 24.
10
11 See files NEWS.23, NEWS.22, NEWS.21, NEWS.20, NEWS.19, NEWS.18,
12 and NEWS.1-17 for changes in older Emacs versions.
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.
16
17
18 Temporary note:
19 +++ indicates that the appropriate manual has already been updated.
20 --- means no change in the manuals is called for.
21 When you add a new item, please add it without either +++ or ---
22 so we will look at it and add it to the manual.
23
24 \f
25 * Installation Changes in Emacs 24.1
26
27 ** Configure links against libselinux if it is found.
28 You can disable this by using --without-selinux.
29
30 ---
31 ** By default, the installed Info and man pages are compressed.
32 You can disable this by configuring --without-compress-info.
33
34 ---
35 ** There are new configure options:
36 --with-mmdf, --with-mail-unlink, --with-mailhost.
37 These provide no new functionality, they just remove the need to edit
38 lib-src/Makefile by hand in order to use the associated features.
39
40 ---
41 ** Emacs can be compiled against Gtk+ 3.0 if you pass --with-x-toolkit=gtk3
42 to configure. Note that other libraries used by Emacs, RSVG and GConf,
43 also depend on Gtk+. You can disable them with --without-rsvg and
44 --without-gconf.
45
46 ** There is a new configure option --enable-use-lisp-union-type.
47 This is only useful for Emacs developers to debug certain types of bugs.
48 This is not a new feature; only the configure flag is new.
49
50 ---
51 ** New translation of the Emacs Tutorial in Hebrew is available
52 Type `C-u C-h t' to choose it in case your language setup doesn't
53 automatically select it.
54
55 \f
56 * Startup Changes in Emacs 24.1
57
58 ** The --unibyte, --multibyte, --no-multibyte, and --no-unibyte
59 command line arguments no longer have any effect. (They were declared
60 obsolete in Emacs 23.)
61
62 \f
63 * Changes in Emacs 24.1
64
65 ** emacsclient changes
66
67 *** New emacsclient argument --parent-id ID can be used to open a
68 client frame in parent X window ID, via XEmbed. This works like the
69 --parent-id argument to Emacs.
70
71 *** If emacsclient shuts down as a result of Emacs signalling an
72 error, its exit status is 1.
73
74 ** Completion can cycle, depending on completion-cycle-threshold.
75
76 ** auto-mode-case-fold is now enabled by default.
77
78 +++
79 ** Emacs now supports display and editing of bidirectional text.
80
81 See the node "Bidirectional Editing" in the Emacs Manual for some
82 initial documentation.
83
84 To turn this on in any given buffer, set the buffer-local variable
85 `bidi-display-reordering' to a non-nil value. The default is nil.
86
87 The buffer-local variable `bidi-paragraph-direction', if non-nil,
88 forces each paragraph in the buffer to have its base direction
89 according to the value of this variable. Possible values are
90 `right-to-left' and `left-to-right'. If the value is nil (the
91 default), Emacs determines the base direction of each paragraph from
92 its text, as specified by the Unicode Bidirectional Algorithm.
93
94 The function `current-bidi-paragraph-direction' returns the actual
95 value of paragraph base direction at point.
96
97 Reordering of bidirectional text for display in Emacs is a "Full
98 bidirectionality" class implementation of the Unicode Bidirectional
99 Algorithm.
100
101 Note that some advanced display features, such as overlay strings and
102 `display' text properties, do not yet work correctly when
103 bidirectional text is reordered for display.
104
105 ** GTK scroll-bars are now placed on the right by default.
106 Use `set-scroll-bar-mode' to change this.
107
108 ** GTK tool bars can have just text, just images or images and text.
109 Customize `tool-bar-style' to choose style. On a Gnome desktop, the default
110 is taken from the desktop settings.
111
112 ** GTK tool bars can be placed on the left/right or top/bottom of the frame.
113 The frame-parameter tool-bar-position controls this. It takes the values
114 top, left, right or bottom. The Options => Show/Hide menu has entries
115 for this.
116
117 ** ImageMagick support.
118 It is now possible to use the ImageMagick library to load many new
119 image formats in Emacs. By default, Emacs links with the ImageMagick
120 libraries if they are present at build time. To disable this, use
121 the configure option `--without-imagemagick'.
122
123 The new function `imagemagick-types' returns a list of image file
124 extensions that your installation of ImageMagick supports. The
125 function `imagemagick-register-types' enables ImageMagick support for
126 these image types, minus those listed in `imagemagick-types-inhibit'.
127
128 See the Emacs Lisp Reference Manual for more information.
129
130 ** The colors for selected text (the region face) are taken from the GTK
131 theme when Emacs is built with GTK.
132
133 ** Emacs uses GTK tooltips by default if built with GTK. You can turn that
134 off by customizing x-gtk-use-system-tooltips.
135
136 ** Lucid menus and dialogs can display antialiased fonts if Emacs is built
137 with Xft. To change font, use X resource faceName, for example:
138 Emacs.pane.menubar.faceName: Courier-12
139 Set faceName to none and use font to use the old X fonts.
140
141 +++
142 ** Enhanced support for characters that have no glyphs in available fonts
143 If a character has no glyphs in any of the available fonts, Emacs by
144 default will display it either as a hexadecimal code in a box or as a
145 thin 1-pixel space. In addition to these two methods, Emacs can
146 display these characters as empty box, as an acronym, or not display
147 them at all. To change how these characters are displayed, customize
148 the variable `glyphless-char-display-control'.
149
150 On character terminals these methods are used for characters that
151 cannot be encoded by the `terminal-coding-system'.
152
153 ** On graphical displays, the mode-line no longer ends in dashes.
154
155 ** Basic SELinux support has been added.
156 This requires Emacs to be linked with libselinux at build time.
157
158 *** Emacs preserves the SELinux file context when backing up, and
159 optionally when copying files. To this end, copy-file has an extra
160 optional argument, and backup-buffer and friends include the SELinux
161 context in their return values.
162
163 *** The new functions file-selinux-context and set-file-selinux-context
164 get and set the SELinux context of a file.
165
166 *** Tramp offers handlers for file-selinux-context and set-file-selinux-context
167 for remote machines which support SELinux.
168
169 ** The function kill-emacs is now run upon receipt of the signals SIGTERM
170 and SIGHUP, and upon SIGINT in batch mode.
171
172 ** kill-emacs-hook is now also run in batch mode.
173
174 ** New scrolling commands `scroll-up-command' and `scroll-down-command'
175 (bound to C-v/[next] and M-v/[prior]) does not signal errors at top/bottom
176 of buffer at first key-press (instead moves to top/bottom of buffer)
177 when a new variable `scroll-error-top-bottom' is non-nil.
178
179 ** New scrolling commands `scroll-up-line' and `scroll-down-line'
180 scroll a line instead of full screen.
181
182 ** New property `scroll-command' should be set on a command's symbol to
183 define it as a scroll command affected by `scroll-preserve-screen-position'.
184
185 ** Trash changes
186
187 *** `delete-by-moving-to-trash' now only affects commands that specify
188 trashing. This avoids inadvertently trashing temporary files.
189
190 *** Calling `delete-file' or `delete-directory' with a prefix argument
191 now forces true deletion, regardless of `delete-by-moving-to-trash'.
192
193 ** New option `list-colors-sort' defines the color sort order
194 for `list-colors-display'.
195
196 ** An Emacs Lisp package manager is now included.
197 This is a convenient way to download and install additional packages,
198 from a package repository at elpa.gnu.org.
199
200 *** `M-x list-packages' shows a list of packages, which can be
201 selected for installation.
202
203 *** New command `describe-package', bound to `C-h P'.
204
205 *** By default, all installed packages are loaded and activated
206 automatically when Emacs starts up. To disable this, set
207 `package-enable-at-startup' to nil. To change which packages are
208 loaded, customize `package-load-list'.
209
210 ** Custom Themes
211
212 *** `M-x customize-themes' lists Custom themes which can be enabled.
213
214 *** New option `custom-theme-load-path' is the load path for themes.
215 Emacs no longer looks for custom themes in `load-path'. The default
216 is to search in `custom-theme-directory', followed by a built-in theme
217 directory named "themes/" in `data-directory'.
218
219 ** The user option `remote-file-name-inhibit-cache' controls whether
220 the remote file-name cache is used for read access.
221
222 ** The standalone programs lib-src/digest-doc and sorted-doc have been
223 replaced with Lisp commands `doc-file-to-man' and `doc-file-to-info'.
224
225 \f
226 * Editing Changes in Emacs 24.1
227
228 +++
229 ** There is a new command `count-words-region', which does what you expect.
230
231 ** completion-at-point is now an alias for complete-symbol.
232
233 ** Deletion changes
234
235 *** New option `delete-active-region'.
236 If non-nil, C-d, [delete], and DEL delete the region if it is active
237 and no prefix argument is given. If set to `kill', these commands
238 kill instead.
239
240 *** New command `delete-forward-char', bound to C-d and [delete].
241 This is meant for interactive use, and obeys `delete-active-region'.
242 The command `delete-char' does not obey `delete-active-region'.
243
244 *** `delete-backward-char' is now a Lisp function.
245 Apart from obeying `delete-active-region', its behavior is unchanged.
246 However, the byte compiler now warns if it is called from Lisp; you
247 should use delete-char with a negative argument instead.
248
249 *** The option `mouse-region-delete-keys' has been deleted.
250
251 ** Selection changes.
252
253 The default handling of clipboard and primary selections has been
254 changed to conform with other X applications. The exact changes are
255 described below; in short, mouse commands to select and paste text now
256 use the primary selection, while all other commands for killing and
257 yanking text now use the clipboard.
258
259 *** Merely selecting text (e.g. with drag-mouse-1) does not add it to
260 the kill-ring. On systems with a primary selection separate from the
261 clipboard (such as X), the selected text is put in the primary
262 selection.
263
264 *** mouse-2 is now bound to `mouse-yank-primary', which pastes from
265 the primary selection regardless of the contents of the kill-ring.
266
267 *** Commands that kill text or copy it to the kill-ring (M-w, C-w,
268 C-k, etc.) also put the killed text into the clipboard. This change
269 also means that the "Copy", "Cut", and "Paste" items in the "Edit"
270 menu are now exactly equivalent to, respectively M-w, C-w, and C-y.
271
272 *** Yank commands, such as C-y and M-y, retrieve text from the
273 clipboard if it is available.
274
275 *** The above changes are reflected in the following new defaults:
276
277 **** `select-active-regions' now defaults to t.
278 It also accepts a new value, `only', which means to only set the
279 primary selection for temporarily active regions (usually made by
280 mouse-dragging or shift-selection).
281
282 **** `mouse-2' is now bound to `mouse-yank-primary'.
283 Previously, it was bound to `mouse-yank-at-click' (which is now
284 unbound by default).
285
286 **** `x-select-enable-clipboard' now defaults to t on all platforms.
287 Note that this variable was already non-nil by default on MS-Windows,
288 which does not support the primary selection between applications.
289
290 **** `x-select-enable-primary' now defaults to nil.
291 This variable exists only on X; its default value was t in previous
292 versions.
293
294 **** `mouse-drag-copy-region' now defaults to nil.
295
296 *** To return to the previous behavior, where mouse commands use the
297 clipboard, change `mouse-drag-copy-region' and (on X only)
298 `x-select-enable-primary' to t. If you don't want Emacs to put the
299 text into the clipboard, only to the primary selection, additionally
300 set `x-select-enable-clipboard' to nil.
301
302 *** Support for X cut buffers has been removed.
303
304 \f
305 * Changes in Specialized Modes and Packages in Emacs 24.1
306
307 ** shell-mode can track your cwd by reading it from your prompt.
308 Just set shell-dir-cookie-re to an appropriate regexp.
309
310 ** Modula-2 mode provides auto-indentation.
311
312 ** latex-electric-env-pair-mode keeps \begin..\end matched on the fly.
313
314 ** FIXME: xdg-open for browse-url and reportbug, 2010/08.
315
316 ** Archive Mode has basic support to browse 7z archives.
317
318 ** ERC changes
319
320 *** New vars `erc-autojoin-timing' and `erc-autojoin-delay'.
321 If the value of `erc-autojoin-timing' is 'ident, ERC autojoins after a
322 successful NickServ identification, or after `erc-autojoin-delay'
323 seconds. The default value, 'ident, means to autojoin immediately
324 after connecting.
325
326 *** New variable `erc-coding-system-precedence': If we use `undecided'
327 as the server coding system, this variable will then be consulted.
328 The default is to decode strings that can be decoded as utf-8 as
329 utf-8, and do the normal `undecided' decoding for the rest.
330
331 ** In ido-mode, C-v is no longer bound to ido-toggle-vc.
332 The reason is that this interferes with cua-mode.
333
334 ** partial-completion-mode is now obsolete.
335 You can get a comparable behavior with:
336 (setq completion-styles '(partial-completion initials))
337 (setq completion-pcm-complete-word-inserts-delimiters t)
338
339 ** mpc.el: Can use pseudo tags of the form tag1|tag2 as a union of two tags.
340
341 ** server can listen on a specific port using the server-port option.
342
343 ** Calendar, Diary, and Appt
344
345 ---
346 *** The obsolete (since Emacs 22.1) method of enabling the appt package
347 by adding appt-make-list to diary-hook has been removed. Use appt-activate.
348
349 ---
350 *** Some appt variables (obsolete since Emacs 22.1) have been removed:
351 appt-issue-message (use the function appt-activate)
352 appt-visible/appt-msg-window (use the variable appt-display-format)
353
354 ---
355 *** Some diary function aliases (obsolete since Emacs 22.1) have been removed:
356 view-diary-entries, list-diary-entries, show-all-diary-entries
357
358 ** Customize
359
360 *** Customize buffers now contain a search field.
361 The search is performed using `customize-apropos'.
362 To turn off the search field, set custom-search-field to nil.
363
364 *** Custom options now start out hidden if at their default values.
365 Use the arrow to the left of the option name to toggle visibility.
366
367 *** custom-buffer-sort-alphabetically now defaults to t.
368
369 *** The color widget now has a "Choose" button, which allows you to
370 choose a color via list-colors-display.
371
372 ** Dired-x
373
374 *** dired-jump and dired-jump-other-window called with a prefix argument
375 read a file name from the minibuffer instead of using buffer-file-name.
376
377 ** Directory local variables can apply to file-less buffers.
378 For example, adding "(diff-mode . ((mode . whitespace)))" to your
379 .dir-locals.el file, will turn on `whitespace-mode' for *vc-diff* buffers.
380
381 ** SQL Mode enhancements.
382
383 *** Several variables have been marked as safe local variables. The
384 variables `sql-product', `sql-user', `sql-server', `sql-database' and
385 `sql-port' can now be safely used as local variables.
386
387 *** `sql-dialect' is a synonym for `sql-product'.
388
389 *** Added ability to login with a port on MySQL and Postgres.
390 The custom variable `sql-port' can be specified for connection to
391 MySQL or Postgres servers. By default, the port is not listed in
392 either login parameter, but will be added to the command line if set
393 to a non-zero value.
394
395 *** Dynamic selection of product in an SQL interactive session.
396 If you use `sql-product-interactive' to start an SQL interactive
397 session it uses the current value of `sql-product'. Preceding the
398 invocation with C-u will force it to ask for the product before
399 creating the session.
400
401 *** Renaming a SQL interactive buffer when it is created.
402 Prefixing the SQL interactive commands (`sql-sqlite', `sql-postgres',
403 `sql-mysql', etc.) with C-u will force a new interactive session to be
404 started and will prompt for the new name. This will reduce the need
405 for `sql-rename-buffer' is most common use cases.
406
407 *** Command continuation prompts in SQL interactive mode are suppressed.
408 Multiple line commands in SQL interactive mode, generate command
409 continuation prompts which needlessly confuse the output. These
410 prompts are now filtered out from the output. This change impacts
411 multiple line SQL statements entered with C-j between each line,
412 statements yanked into the buffer and statements sent with
413 `sql-send-*' functions.
414
415 *** Custom variables control prompting for login parameters.
416 Each supported product has a custom variable `sql-*-login-params'
417 which is a list of the parameters to be prompted for before a
418 connection is established.
419
420 The lists consist of the following five tokens: `user', `password',
421 `database', `server', and `port'. The order in which they appear is
422 the order in which they are prompted. The tokens symbols can be
423 replaced by a sublist starting with the token and followed by a plist
424 which control the prompting for values. The tokens `user',
425 `database', and `server' each can take a property of :default which
426 specifies the value to be used if no value is entered. The
427 `database', `server', and `port' tokens handle the :completion
428 property which restricts the entry to either one of the values in the
429 list or to one of the values returned by the function provided as the
430 property value. The `database' and `server' tokens also accept the
431 :file property whose value is a regexp to identify useful file names.
432
433 (user :default DEF)
434 (database :default DEF
435 :file FILEPAT
436 :completion COMPLETE)
437 (server :default DEF
438 :file FILEPAT
439 :completion COMPLETE)
440
441 The FILEPAT when :file is specified is a regexp that will match valid
442 file names (without the directory portion). Generally these strings
443 will be of the form ".+\.SUF" where SUF is the desired file suffix.
444
445 When :completion is specified, the COMPLETE corresponds to the
446 PREDICATE argument to the `completing-read' function (a list of
447 possible values or a function returning such a list).
448
449 *** Added `sql-connection-alist' to record login parameter values.
450 An alist for recording different username, database and server
451 values. If there are multiple databases that you connect to the
452 parameters needed can be stored in this alist.
453
454 For example, the following might be set in the user's init.el:
455
456 (setq sql-connection-alist
457 '((dev (sql-product 'sqlite)
458 (sql-database "/home/mmaug/dev.db"))
459 (prd (sql-product 'oracle)
460 (sql-user "mmaug")
461 (sql-database "iprd2a"))))
462
463 This defines two connections named "dev" and "prd".
464
465 *** Added `sql-connect' to use predefined connections.
466 Sets the login parameters based on the values in the
467 `sql-connection-alist' and start a SQL interactive session. Any
468 values specified in the connection will not be prompted for.
469
470 In the example above, if the user were to invoke M-x sql-connect, they
471 would be prompted for the connection. The user can respond with
472 either "dev" or "prd". The "dev" connection would connect to the
473 SQLite database without prompting; the "prd" connection would prompt
474 for the users password and then connect to the Oracle database.
475
476 **** Added SQL->Start... submenu when connections are defined.
477 When connections have been defined, there is a submenu available that
478 allows the user to select one to start a SQLi session. The "Start
479 SQLi Session" item moves to the "Start..." submenu when cnnections
480 have been defined.
481
482 **** Added "Save Connection" menu item in SQLi buffers.
483 When a SQLi session is not started by a connection then
484 `sql-save-connection' will gather the login params specified for the
485 session and save them as a new connection.
486
487 *** List database objects and details.
488 Once a SQL interactive session has been started, you can get a list of
489 the objects in the database and see details of those objects. The
490 objects shown and the details available are product specific.
491
492 **** List all objects.
493 Using `M-x sql-list-all', `C-c C-l a' or selecting "SQL->List all
494 objects" will list all the objects in the database. At a minimum it
495 lists the tables and views in the database. Preceeding the command by
496 universal argument may provide additional details or extend the
497 listing to include other schemas objects. The list will appear in a
498 separate window in view-mode.
499
500 **** List Table details.
501 Using `M-x sql-list-table', `C-c C-l t' or selecting "SQL->List Table
502 details" will ask for the name of a database table or view and display
503 the list of columns in the relation. Preceeding the comand with the
504 universal argument may provide additional details about each column.
505 The list will appear in a separate window in view-mode.
506
507 *** Added option `sql-send-terminator'.
508 When set makes sure that each command sent with `sql-send-*' commands
509 are properly terminated and submitted to the SQL processor.
510
511 *** Added option `sql-oracle-scan-on'.
512 When set commands sent to Oracle's SQL*Plus are scanned for strings
513 starting with an ampersand and the user is asked for replacement text.
514 In general, the SQL*Plus option SCAN should always be set OFF under
515 SQL interactive mode and this option used in its place.
516
517 *** SQL interactive mode will replace tabs with spaces.
518 This prevents the comand interpretter for MySQL and Postgres from
519 listing object name completions when being sent text via
520 `sql-send-*' functions.
521
522 *** An API for manipulating SQL product definitions has been added.
523
524 ** s-region.el is now declared obsolete, superceded by shift-select-mode
525 enabled by default in 23.1.
526
527 ** gdb-mi
528
529 *** GDB User Interface migrated to GDB Machine Interface and now
530 supports multithread non-stop debugging and debugging of several
531 threads simultaneously.
532
533 ** D-Bus
534
535 *** It is possible now, to access alternative buses than the default
536 system or session bus.
537
538 ** Tramp
539
540 *** The following access methods are discontinued: "ssh1_old",
541 "ssh2_old", "scp1_old", "scp2_old" and "fish".
542
543 \f
544 * New Modes and Packages in Emacs 24.1
545
546 ** New global minor modes electric-pair-mode, electric-indent-mode,
547 and electric-layout-mode.
548
549 ** pcase.el provides the ML-style pattern matching macro `pcase'.
550
551 ** secrets.el is an implementation of the Secret Service API, an
552 interface to password managers like GNOME Keyring or KDE Wallet. The
553 Secret Service API requires D-Bus for communication. The command
554 `secrets-show-secrets' offers a buffer with a visualization of the
555 secrets.
556
557 ** notifications.el provides an implementation of the Desktop
558 Notifications API. It requires D-Bus for communication.
559
560 \f
561 * Incompatible Lisp Changes in Emacs 24.1
562
563 ** For mouse click input events in the text area, the Y pixel
564 coordinate in the POSITION list now counts from the top of the text
565 area, excluding any header line. Previously, it counted from the top
566 of the header line.
567
568 ** Remove obsolete name `e' (use `float-e' instead).
569
570 ** A backquote not followed by a space is now always treated as new-style.
571
572 ** Test for special mode-class was moved from view-file to view-buffer.
573 FIXME: This only says what was changed, but not what are the
574 programmer-visible consequences.
575
576 ** Passing a nil argument to a minor mode function now turns the mode
577 ON unconditionally.
578
579 ** During startup, Emacs no longer adds entries for `menu-bar-lines'
580 and `tool-bar-lines' to `default-frame-alist' and
581 `initial-frame-alist'. With these alist entries omitted, `make-frame'
582 checks the value of the variable `menu-bar-mode'/`tool-bar-mode' to
583 determine whether to create a menu-bar or tool-bar, respectively.
584 If the alist entries are added, they override the value of
585 `menu-bar-mode'/`tool-bar-mode'.
586
587 ** Regions created by mouse dragging are now normal active regions,
588 similar to the ones created by shift-selection. In previous Emacs
589 versions, these regions were delineated by `mouse-drag-overlay', which
590 has now been removed.
591
592 ** cl.el no longer provides `cl-19'.
593
594 ** The following functions and aliases, obsolete since at least Emacs 21.1,
595 have been removed:
596 comint-kill-output, decompose-composite-char, outline-visible,
597 internal-find-face, internal-get-face, frame-update-faces,
598 frame-update-face-colors, x-frob-font-weight, x-frob-font-slant,
599 x-make-font-bold, x-make-font-demibold, x-make-font-unbold
600 x-make-font-italic, x-make-font-oblique, x-make-font-unitalic
601 x-make-font-bold-italic, mldrag-drag-mode-line, mldrag-drag-vertical-line,
602 iswitchb-default-keybindings, char-bytes, isearch-return-char,
603 make-local-hook
604
605 ** The following variables and aliases, obsolete since at least Emacs 21.1,
606 have been removed:
607 checkdoc-minor-keymap, vc-header-alist, directory-sep-char,
608 font-lock-defaults-alist
609
610 ** The following files, obsolete since at least Emacs 21.1, have been removed:
611 sc.el, x-menu.el, rnews.el, rnewspost.el
612
613 ** FIXME finder-inf.el changes.
614
615 \f
616 * Lisp changes in Emacs 24.1
617
618 ** `image-library-alist' is renamed to `dynamic-library-alist'.
619 The variable is now used to load all kind of supported dynamic libraries,
620 not just image libraries. The previous name is still available as an
621 obsolete alias.
622
623 ** New variable syntax-propertize-function to set syntax-table properties.
624 Replaces font-lock-syntactic-keywords which are now obsolete.
625 This allows syntax-table properties to be set independently from font-lock:
626 just call syntax-propertize to make sure the text is propertized.
627 Together with this new variable come a new hook
628 syntax-propertize-extend-region-functions, as well as two helper functions:
629 syntax-propertize-via-font-lock to reuse old font-lock-syntactic-keywords
630 as-is; and syntax-propertize-rules which provides a new way to specify
631 syntactic rules.
632
633 ** New hook post-self-insert-hook run at the end of self-insert-command.
634
635 +++
636 ** Syntax tables support a new "comment style c" additionally to style b.
637 ** frame-local variables cannot be let-bound any more.
638 ** prog-mode is a new major-mode meant to be the parent of programming mode.
639 ** define-minor-mode accepts a new keyword :variable.
640
641 ** `delete-file' and `delete-directory' now accept optional arg TRASH.
642 Trashing is performed if TRASH and `delete-by-moving-to-trash' are
643 both non-nil. Interactively, TRASH defaults to t, unless a prefix
644 argument is supplied (see Trash changes, above).
645
646 ** buffer-substring-filters is obsoleted by filter-buffer-substring-functions.
647
648 ** New completion style `substring'.
649
650 ** `facemenu-read-color' is now an alias for `read-color'.
651 The command `read-color' now requires a match for a color name or RGB
652 triplet, instead of signalling an error if the user provides a invalid
653 input.
654
655
656 ** Image API
657
658 *** When the image type is one of listed in `image-animated-types'
659 and the number of sub-images in the image is more than one, then the
660 new function `create-animated-image' creates an animated image where
661 sub-images are displayed successively with the duration defined by
662 `image-animate-max-time' and the delay between sub-images defined
663 by the Graphic Control Extension of the image.
664
665 *** `image-extension-data' is renamed to `image-metadata'.
666
667 ** XML and HTML parsing
668
669 *** If Emacs is compiled with libxml2 support (which is the default),
670 two new Emacs Lisp-level functions are defined:
671 `xml-parse-html-string-internal' (which will parse "real world" HTML)
672 and `xml-parse-string-internal' (which parses XML). Both return an
673 Emacs Lisp parse tree.
674
675 FIXME: These should be front-ended by xml.el.
676
677 ** FIXME GnuTLS
678
679 ** Isearch
680
681 *** New hook `isearch-update-post-hook' that runs in `isearch-update'.
682
683 ** Progress reporters can now "spin".
684 The MIN-VALUE and MAX-VALUE arguments of `make-progress-reporter' can
685 now be nil, or omitted. This makes a "non-numeric" reporter. Each
686 time you call `progress-reporter-update' on that progress reporter,
687 with a nil or omitted VALUE argument, the reporter message is
688 displayed with a "spinning bar".
689
690 \f
691 * Changes in Emacs 24.1 on non-free operating systems
692
693 ** New configure.bat option --enable-checking builds emacs with extra
694 runtime checks.
695
696 ** New configure.bat option --distfiles to specify files to be
697 included in binary distribution
698
699 ** New make target `dist' to create binary disttribution for Windows
700 platform
701
702 \f
703 ----------------------------------------------------------------------
704 This file is part of GNU Emacs.
705
706 GNU Emacs is free software: you can redistribute it and/or modify
707 it under the terms of the GNU General Public License as published by
708 the Free Software Foundation, either version 3 of the License, or
709 (at your option) any later version.
710
711 GNU Emacs is distributed in the hope that it will be useful,
712 but WITHOUT ANY WARRANTY; without even the implied warranty of
713 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
714 GNU General Public License for more details.
715
716 You should have received a copy of the GNU General Public License
717 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
718
719 \f
720 Local variables:
721 mode: outline
722 paragraph-separate: "[ \f]*$"
723 end: