1 GNU Emacs NEWS -- history of user-visible changes.
3 Copyright (C) 2010-2013 Free Software Foundation, Inc.
4 See the end of the file for license conditions.
6 Please send Emacs bug reports to bug-gnu-emacs@gnu.org.
7 If possible, use M-x report-emacs-bug.
9 This file is about changes in Emacs version 24.
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.
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.
18 +++ indicates that the appropriate manual has already been updated.
19 --- means no change in the manuals is called for.
20 When you add a new item, please add it without either +++ or ---
21 so we will look at it and add it to the manual.
24 * Installation Changes in Emacs 24.4
26 ** Emacs can be compiled with POSIX ACL support.
27 This happens by default if a suitable support library is found at
28 build time, like libacl on GNU/Linux. To prevent this, use the
29 configure option `--without-acl'.
31 * Startup Changes in Emacs 24.4
32 * Changes in Emacs 24.4
35 ** `apropos-variable' is now `apropos-user-option'
36 `apropos-user-option' shows all user options while `apropos-variable'
37 shows all variables. When called with a universal prefix argument,
38 the two commands swap their behaviors. When `apropos-do-all' is
39 non-nil, they output the same results.
42 ** `eval-defun' on an already defined defcustom calls the :set function,
45 ** The option `set-mark-default-inactive' has been deleted.
46 This unfinished feature was introduced by accident in Emacs 23.1;
47 simply disabling Transient Mark mode does the same thing.
49 ** `initial-buffer-choice' can now specify a function to set up the
52 ** ACL support has been added.
54 *** Emacs preserves the ACL entries of files when backing up.
56 *** New functions `file-acl' and `set-file-acl' get and set the ACL
57 entries of a file. On GNU/Linux, the POSIX ACL interface is used via
58 libacl. On MS-Windows, the NT Security APIs are used to emulate the
61 ** New option `scroll-bar-adjust-thumb-portion'.
63 * Editing Changes in Emacs 24.4
65 ** New commands `toggle-frame-fullscreen' and `toggle-frame-maximized',
66 bound to <f11> and M-<f10>, respectively.
69 * Changes in Specialized Modes and Packages in Emacs 24.4
71 ** jit-lock-debug-mode lets you use the debuggers on code run via jit-lock.
73 ** completing-read-multiple's separator can now be a regexp.
74 The default separator is changed to allow surrounding spaces around the comma.
78 *** Battery information via the BSD `apm' utility is now supported.
82 *** New macro cl-tagbody.
85 *** letf is now just an alias for cl-letf.
89 *** Calc by default now uses the Gregorian calendar for all dates, and
90 uses January 1, 1 AD as its day number 1. Previously Calc used the
91 Julian calendar for dates before September 14, 1752, and it used
92 December 31, 1 BC as its day number 1; the new scheme is more
93 consistent with Calendar's calendrical system and day numbering.
95 *** The new variable `calc-gregorian-switch' lets you configure the
96 date when Calc switches from the Julian to the Gregorian calendar.
97 Nil, the default value, means to always use the Gregorian calendar.
98 The value (YEAR MONTH DAY) means to start using the Gregorian calendar
103 *** New option `erc-accidental-paste-threshold-seconds'.
104 If set to a number, this can be used to avoid accidentally paste large
105 amounts of data into the ERC input.
107 ** Icomplete is a bit more like IDO.
108 *** key bindings to navigate through and select the completions.
109 *** The icomplete-separator is customizable, and its default has changed.
110 *** Removed icomplete-show-key-bindings.
114 *** The command `image-mode-fit-frame' deletes other windows.
115 When toggling, it restores the frame's previous window configuration.
116 It also has an optional frame argument, which can be used by Lisp
117 callers to fit the image to a frame other than the selected frame.
121 *** `C-x 8 RET' in Isearch mode reads a character by its Unicode name
122 and adds it to the search string.
124 ** MH-E has been updated to MH-E version 8.4.
125 See MH-E-NEWS for details.
128 ** The unrmail command converts from BABYL to mboxrd rather than mboxo.
129 Customize `unrmail-mbox-format' to change this.
132 ** Similarly, customize `rmail-mbox-format' to influence some minor aspects
133 of how Rmail displays non-MIME messages.
136 ** New function `ses-rename-cell' to give SES cells arbitrary names.
138 ** trace-function was largely rewritten.
139 New features include:
140 - no prompting for the destination buffer, unless a prefix-arg was used.
141 - additionally to prompting for a destination buffer, when a prefix-arg is
142 used, the user can enter a "context", i.e. Lisp expression whose value at the
143 time the function is entered/exited will be printed along with the function
144 name and arguments. Useful to trace the value of (current-buffer) or
145 (point) when the function is invoked.
147 ** New command `delete-duplicate-lines' has two types of operation:
148 when its arg ADJACENT is non-nil (when called interactively with C-u C-u)
149 it works like the utility `uniq'. Otherwise by default it deletes
150 duplicate lines everywhere in the region without regard to adjacency.
154 *** New connection method "adb", which allows to access Android
155 devices by the Android Debug Bridge. The variable `tramp-adb-sdk-dir'
156 must be set to the Android SDK installation directory.
158 *** Handlers for `file-acl' and `set-file-acl' for remote machines
159 which support POSIX ACLs.
163 *** The commands `woman-default-faces' and `woman-monochrome-faces'
164 are obsolete. Customize the `woman-* faces instead.
166 ** Obsolete packages:
168 *** longlines.el is obsolete; use visual-line-mode instead.
170 *** terminal.el is obsolete; use term.el instead.
173 * New Modes and Packages in Emacs 24.4
174 ** New nadvice.el package offering lighter-weight advice facilities.
176 - add-function/remove-function which can be used to add/remove code on any
177 function-carrying place, such as process-filters or `<foo>-function' hooks.
178 - advice-add/advice-remove to add/remove a piece of advice on a named function,
179 much like `defadvice' does.
181 * Incompatible Lisp Changes in Emacs 24.4
183 ** frame-local variables that affect redisplay do not work any more.
184 More specifically, the redisplay does not bother to check for a frame-local
185 value when looking up variables.
187 ** nil and "unbound" are indistinguishable in symbol-function.
188 `symbol-function' never signals `void-function' any more.
189 `fboundp' returns non-nil if the symbol was `fset' to nil.
191 ** `defadvice' does not honor the `freeze' flag and cannot advise
192 special-forms any more.
194 ** `dolist' in lexical-binding mode does not bind VAR in RESULT any more.
195 VAR was bound to nil which was not tremendously useful and just lead to
196 spurious warnings about an unused var.
198 ** The return value of `backup-buffer' has changed.
199 The second argument is no longer an SELinux context, instead it is an
200 alist of extended attributes as returned by the new function
201 `file-extended-attributes'. The attributes can be applied to another
202 file using `set-file-extended-attributes'.
204 * Lisp changes in Emacs 24.4
206 ** Support for filesystem notifications.
207 Emacs now supports notifications of filesystem changes, such as
208 creation, modification, and deletion of files. This requires the
209 'inotify' API on GNU/Linux systems. On MS-Windows systems, this is
210 supported for Windows XP and newer versions.
214 *** The `face-spec-set' is now analogous to `setq' for face specs.
215 Its third arg now accepts values specifying exactly which face spec to
216 set (defface, custom, or user spec), and it directly sets the relevant
217 property using the supplied face spec.
219 *** Face specs set via Custom themes now replace the `defface' spec
220 rather than inheriting from it (as do face specs set via Customize).
222 *** New face characteristic (supports :underline (:style wave))
223 specifies whether or not the terminal can display a wavy line.
225 ** time-to-seconds is not obsolete any more.
226 ** New function special-form-p.
227 ** Docstrings can be made dynamic by adding a `dynamic-docstring-function'
228 text-property on the first char.
230 ** The `defalias-fset-function' property lets you catch calls to defalias
231 and redirect them to your own function instead of `fset'.
233 ** The 9th element returned by `file-attributes' is now unspecified.
234 Formerly, it was t if the file's gid would change if file were deleted
235 and recreated. This value has been inaccurate for years on many
236 platforms, and nobody seems to have noticed or cared.
238 ** The function `file-ownership-preserved-p' now has an optional
239 argument GROUP which causes it check for file group too. This can be
240 used in place of the 9th element of `file-attributes'.
242 ** New functions `group-gid' and `group-real-gid'.
244 ** The 6th argument to `copy-file' has been renamed to
245 `preserve-extended-attributes' as it now handles both SELinux context
248 * Changes in Emacs 24.4 on non-free operating systems
251 ** The "generate a backtrace on fatal error" feature now works on MS Windows.
252 The backtrace is written to the 'emacs_backtrace.txt' file in the
253 directory where Emacs was running.
256 * Installation Changes in Emacs 24.3
258 ** The default X toolkit is now Gtk+ version 3.
259 If you don't pass `--with-x-toolkit' to configure, or if you use
260 `--with-x-toolkit=gtk' or `--with-x-toolkit=yes', configure will try
261 to build with Gtk+ version 3, and if that fails, try Gtk+ version 2.
262 You can explicitly require a specific version by passing
263 `--with-x-toolkit=gtk2' or `--with-x-toolkit=gtk3' to configure.
265 ** New configure option `--enable-link-time-optimization', to utilize
266 an appropriate feature provided by GCC since version 4.5.0.
268 ** New configure option `--without-all' to disable most of the optional
269 features (image support, etc.) that are normally enabled by default.
271 ** New configure option `--enable-gcc-warnings' (for developing/debugging
272 Emacs). If building with GCC, this enables compile-time checks that
273 warn about possibly-questionable C code. On a recent GNU system there
274 should be no warnings; on older and on non-GNU systems the generated
275 warnings may be useful.
277 ** The configure option `--enable-use-lisp-union-type' has been
278 renamed to `--enable-check-lisp-object-type', as the resulting
279 Lisp_Object type no longer uses a union to implement the compile time
280 check that this option enables.
282 ** The configure option `--disable-maintainer-mode' has been removed,
283 as it was confusingly-named and rarely useful.
285 ** The configure options `--program-prefix', `--program-suffix', and
286 `--program-transform-name' apply to more than just the installed
287 binaries. Now they also affect the man pages, icons, and the
288 etc/emacs.desktop file; but not the info pages, since this would break
289 links between the various manuals.
291 ** You can use `NO_BIN_LINK=t make install' to prevent the installation
292 overwriting "emacs" in the installation bin/ directory with a link
295 ** Emacs uses libtinfo in preference to libncurses, if available.
297 ** On FreeBSD and NetBSD, configure no longer adds /usr/local/lib and
298 /usr/pkg/lib to the linker search path. You must add them yourself if
301 ** The standalone scripts `rcs-checkin' and `vcdiff' have been removed
302 (from the bin and libexec directories, respectively). The former is
303 no longer relevant, the latter is replaced by lisp (in vc-sccs.el).
306 * Startup Changes in Emacs 24.3
308 ** Emacs no longer searches for `leim-list.el' files beneath the standard
309 lisp/ directory. There should not be any there anyway. If you have
310 been adding them there, put them somewhere else; e.g., site-lisp.
312 ** The `--no-site-lisp' command line option now works for Nextstep builds.
315 * Changes in Emacs 24.3
319 *** `C-h f' (`describe-function') can now perform autoloading.
320 When this command is called for an autoloaded function whose docstring
321 contains a key substitution construct, that function's library is
322 automatically loaded, so that the documentation can be shown
323 correctly. To disable this, set `help-enable-auto-load' to nil.
325 *** `C-h f' now reports previously-autoloaded functions as "autoloaded",
326 even after their associated libraries have been loaded (and the
327 autoloads have been redefined as functions).
331 *** Images displayed via ImageMagick now support transparency and the
332 :background image specification property.
334 *** When available, ImageMagick support is automatically enabled.
335 It is no longer necessary to call `imagemagick-register-types'
336 explicitly to install ImageMagick image types; that function is called
337 automatically at startup, or when customizing an imagemagick- option.
339 *** Setting `imagemagick-types-inhibit' to t now disables the use of
340 ImageMagick to view images. (You must call `imagemagick-register-types'
341 afterwards if you do not use customize to change this.)
343 *** The new variable `imagemagick-enabled-types' also affects which
344 ImageMagick types are treated as images. The function
345 `imagemagick-filter-types' returns the list of types that will be
350 *** In minibuffer filename prompts, `C-M-f' and `C-M-b' now move to the
351 next and previous path separator, respectively.
353 *** `minibuffer-electric-default-mode' can shorten "(default ...)" to "[...]"
354 in minibuffer prompts. Just set `minibuffer-eldef-shorten-default'
355 non-nil before enabling the mode.
359 *** New option `mode-line-default-help-echo' specifies the help text
360 (shown in a tooltip or in the echo area) for any part of the mode line
361 that does not have its own specialized help text.
363 *** You can now click mouse-3 in the coding system indicator to invoke
364 `set-buffer-file-coding-system'.
368 *** emacsclient now obeys string values for `initial-buffer-choice',
369 if it is told to open a new frame without specifying any file to visit
370 or expression to evaluate.
372 *** New option `server-auth-key' specifies a shared server key.
374 ** Emacs now generates backtraces on fatal errors.
375 On encountering a fatal error, Emacs now outputs a textual description
376 of the fatal signal, and a short backtrace on platforms like glibc
377 that support backtraces.
379 ** `C-x C-q' is now bound to the new minor mode `read-only-mode'.
380 This minor mode replaces `toggle-read-only', which is now obsolete.
382 ** Most `y-or-n' prompts now allow you to scroll the selected window.
383 Typing `C-v' or `M-v' at a y-or-n prompt scrolls forward or backward
384 respectively, without exiting from the prompt.
386 ** In the Package Menu, newly-available packages are listed as "new",
387 and sorted above the other "available" packages by default.
389 ** If your Emacs was built from a bzr checkout, the new variable
390 `emacs-bzr-version' contains information about the bzr revision used.
392 ** New option `create-lockfiles' specifies usage of lockfiles.
393 It defaults to t. Changing it to nil inhibits the creation of lock
394 files (use this with caution).
396 ** New option `enable-remote-dir-locals', if non-nil, allows directory-local
397 variables on remote hosts.
399 ** The entry for PCL-CVS has been removed from the Tools menu.
400 The PCL-CVS commands are still available via the keyboard.
402 ** Using "unibyte: t" in Lisp source files is obsolete.
403 Use "coding: raw-text" instead.
405 ** Internationalization
407 *** New language environment: Persian.
409 *** New input method `vietnamese-vni'.
411 ** Nextstep (GNUstep / Mac OS X) port
413 *** Support for fullscreen and the frame parameter fullscreen.
415 *** A file dialog is used for open/save operations initiated from the
419 * Editing Changes in Emacs 24.3
421 ** Search and Replace
423 *** Non-regexp Isearch now performs "lax" space matching.
424 Each sequence of spaces in the supplied search string may match any
425 sequence of one or more whitespace characters, as specified by the
426 variable `search-whitespace-regexp'. (This variable is also used by a
427 similar existing feature for regexp Isearch.)
429 *** New Isearch command `M-s SPC' toggles lax space matching.
430 This applies to both ordinary and regexp Isearch.
432 *** New option `replace-lax-whitespace'.
433 If non-nil, `query-replace' uses flexible whitespace matching too.
436 *** Global `M-s _' starts a symbol (identifier) incremental search,
437 and `M-s _' in Isearch toggles symbol search mode.
438 `M-s c' in Isearch toggles search case-sensitivity.
440 ** Navigation commands
442 *** New binding `M-g c' for `goto-char'.
444 *** New binding `M-g TAB' for `move-to-column'.
446 *** `M-g TAB' (`move-to-column') prompts for a column number if called
447 interactively with no prefix arg. Previously, it moved to column 1.
449 ** New option `yank-handled-properties' allows processing of text
450 properties on yanked text, in ways that are more general than just
451 removing them (as is done by `yank-excluded-properties').
453 ** New option `delete-trailing-lines' specifies whether
454 M-x delete-trailing-whitespace should delete trailing lines at the end
455 of the buffer. It defaults to t.
457 ** `C-u M-=' now counts lines/words/characters in the entire buffer.
459 ** `C-x 8 RET' is now bound to `insert-char', which is now a command.
460 `ucs-insert' is now an obsolete alias for `insert-char'.
462 ** The `z' key no longer has a binding in most special modes.
463 It used to be bound to `kill-this-buffer', but `z' is too easy to
466 ** New command `C-x r M-w' (`copy-rectangle-as-kill').
467 It copies the region-rectangle as the last rectangle kill.
471 *** `C-x r +' is now overloaded to invoke `append-to-register'.
473 *** New option `register-separator' specifies the register containing
474 the text to put between collected texts for use with
475 M-x append-to-register and M-x prepend-to-register.
478 * Changes in Specialized Modes and Packages in Emacs 24.3
480 ** Common Lisp emulation (CL)
482 *** CL's main entry is now (require 'cl-lib).
483 `cl-lib' is like the old `cl' except that it uses the namespace cleanly;
484 i.e., all its definitions have the "cl-" prefix (and internal definitions
485 use the "cl--" prefix).
487 If `cl' provided a feature under the name `foo', then `cl-lib'
488 provides it under the name `cl-foo' instead; with the exceptions of the
489 few `cl' definitions that had to use `foo*' to avoid conflicts with
490 pre-existing Elisp entities. These have been renamed to `cl-foo'
491 rather than `cl-foo*'.
493 The old `cl' is now deprecated and is mainly just a bunch of aliases that
494 provide the old, non-prefixed names. Some exceptions are listed below:
496 *** `cl-flet' is not like `flet' (which is deprecated).
497 Instead it obeys the behavior of Common-Lisp's `flet'.
498 In particular, in cl-flet function definitions are lexically scoped,
499 whereas in flet the scoping is dynamic.
501 *** `cl-labels' is slightly different from `labels'.
502 The difference is that it relies on the `lexical-binding' machinery
503 (as opposed to the `lexical-let' machinery used previously) to capture
504 definitions in closures, so such closures will only work if `lexical-binding'
507 *** `cl-letf' is not exactly like `letf'.
508 The only difference is in details that relate to some deprecated usage
509 of `symbol-function' in place forms.
511 *** `progv' was rewritten to use the `let' machinery.
512 A side effect is that variables without corresponding values are bound
513 to nil rather than being made unbound.
515 *** The following methods of extending `setf' are obsolete
516 (use features from gv.el instead):
517 `define-modify-macro' (use `gv-letplace')
518 `defsetf' (use `gv-define-simple-setter' or `gv-define-setter')
519 `define-setf-expander' (use `gv-define-setter' or `gv-define-expander')
520 `get-setf-method' no longer exists (see "Incompatible Lisp Changes")
524 *** Changes are now highlighted using the same color scheme as in
525 modern VCSes. Deletions are displayed in red (new faces
526 `diff-refine-removed' and `smerge-refined-removed', and new definition
527 of `diff-removed'), insertions in green (new faces `diff-refine-added'
528 and `smerge-refined-added', and new definition of `diff-added').
530 *** The variable `diff-use-changed-face' defines whether to use the
531 face `diff-changed', or `diff-removed' and `diff-added' to highlight
532 changes in context diffs.
534 *** The new command `diff-delete-trailing-whitespace' removes trailing
535 whitespace introduced by a diff.
537 ** Ediff now uses the same color scheme as Diff mode.
541 A new version of python.el, which provides several new features, including:
542 per-buffer shells, better indentation, Python 3 support, and improved
543 shell-interaction compatible with iPython (and virtually any other
546 *** Some user options have been replaced/renamed, including (old -> new):
547 **** python-indent -> python-indent-offset
548 **** python-guess-indent -> python-indent-guess-indent-offset
549 **** python-pdbtrack-do-tracking-p -> python-pdbtrack-activate
550 **** python-use-skeletons -> python-skeleton-autoinsert
552 *** Some user options have been removed, including:
554 **** `python-indent-string-contents': Strings are never indented.
556 **** `python-honour-comment-indentation':
557 Comments are always considered as indentation markers.
559 **** `python-continuation-offset': Indentation is automatically
560 calculated in a pep8 compliant way depending on the context.
562 **** `python-shell-prompt-alist', `python-shell-continuation-prompt-alist':
563 Have no direct mapping as the shell interaction is completely different.
565 **** `python-python-command', `python-jython-command':
566 Replaced by `python-shell-interpreter'.
568 **** `inferior-python-filter-regexp', `python-remove-cwd-from-path',
569 `python-pdbtrack-minor-mode-string', `python-source-modes':
572 *** Some commands have been replaced (old -> new):
573 **** python-insert-class -> python-skeleton-class
574 **** python-insert-def -> python-skeleton-def
575 **** python-insert-for -> python-skeleton-for
576 **** python-insert-if -> python-skeleton-if
577 **** python-insert-try/except -> python-skeleton-try
578 **** python-insert-try/finally -> python-skeleton-try
579 **** python-insert-while -> python-skeleton-while
580 **** python-find-function -> python-nav-jump-to-defun
581 **** python-next-statement -> python-nav-forward-sentence
582 **** python-previous-statement -> python-nav-backward-sentence
583 **** python-beginning-of-defun-function -> python-nav-beginning-of-defun
584 **** python-end-of-defun-function -> python-nav-end-of-defun
585 **** python-send-buffer -> python-shell-send-buffer
586 **** python-send-defun -> python-shell-send-defun
587 **** python-send-region -> python-shell-send-region
588 **** python-send-region-and-go -> emulate with python-shell-send-region
589 and python-shell-switch-to-shell
590 **** python-send-string -> python-shell-send-string
591 **** python-switch-to-python -> python-shell-switch-to-shell
592 **** python-describe-symbol -> python-eldoc-at-point
596 *** New variables `dbus-compiled-version' and `dbus-runtime-version'.
598 *** The D-Bus object manager interface is implemented.
600 *** Variables of type :(u)int32 and :(u)int64 accept floating points,
601 if their value does not fit into Emacs's integer range.
603 *** The function `dbus-call-method' is now non-blocking.
604 It can be interrupted by `C-g'. `dbus-call-method-non-blocking' is obsolete.
606 *** Signals can also be sent as unicast messages.
608 *** The argument list of `dbus-register-signal' has been extended,
609 according to the new match rule types of D-Bus.
611 *** `dbus-init-bus' supports private connections.
613 *** There is a new function `dbus-setenv'.
615 ** `desktop-path' no longer includes the "." directory.
616 Desktop files are now located in ~/.emacs.d by default.
620 *** `dired-do-async-shell-command' executes each file sequentially
621 if the command ends in `;' (when operating on multiple files).
622 Otherwise, it executes the command on each file in parallel.
624 *** Typing `M-n' in the minibuffer of `dired-do-chmod', `dired-do-chgrp',
625 `dired-do-chown', and `dired-do-touch' yanks the attributes of the
628 *** When the region is active, `m' (`dired-mark'), `u' (`dired-unmark'),
629 `DEL' (`dired-unmark-backward'), and `d' (`dired-flag-file-deletion')
630 mark/unmark/flag all files in the active region.
632 *** The minibuffer default for `=' (`dired-diff) has changed.
633 It is now the backup file for the file at point, if one exists.
634 In Transient Mark mode the default is the file at the active mark.
636 *** `M-=' is no longer bound to `dired-backup-diff' in Dired buffers.
637 The global binding for `M-=', `count-words-region' is in effect.
641 *** New module "notifications", which can send a notification when you
642 receive a private message or your nickname is mentioned.
644 *** ERC will look up server/channel names via auth-source and use any
647 *** New option `erc-lurker-hide-list', similar to `erc-hide-list', but
648 only applies to messages sent by lurkers.
650 ** reStructuredText mode
652 *** Keybindings (see `C-c C-h'), TAB indentation, filling and auto-filling,
653 fontification, comment handling, and customization have all been revised
656 *** Support for `imenu' and `which-function-mode'.
658 *** The reStructuredText syntax is more closely covered.
659 Sphinx support has been improved.
661 *** `rst-insert-list' inserts new list or continues existing lists.
663 *** A negative prefix argument always works for `rst-adjust'.
665 *** The window configuration is reset after displaying a TOC.
667 *** The constant `rst-version' describes the rst.el package version.
671 *** Pairing of parens/quotes uses `electric-pair-mode' instead of skeleton-pair.
673 *** `sh-electric-here-document-mode' now controls auto-insertion of here-docs.
675 *** `sh-use-smie' lets you choose a new indentation and navigation code.
679 *** The free software compiler GHDL is supported (and now the default).
681 *** Support for the VHDL-AMS packages has been added/updated.
683 *** Updated to the 2002 revision of the VHDL standard.
685 *** Accepts \r and \f as whitespace.
689 *** The faces used by Apropos are now directly customizable.
690 These faces are named `apropos-symbol', `apropos-keybinding', and so on;
691 see the `apropos' Custom group for details.
693 *** The old options whose values specified faces to use have been removed
694 (i.e. `apropos-symbol-face', `apropos-keybinding-face', etc.).
698 *** This package has been rewritten to use Tabulated List mode.
700 *** Option `Buffer-menu-buffer+size-width' is now obsolete.
701 Use `Buffer-menu-name-width' and `Buffer-menu-size-width' instead.
705 *** You can customize the header text that appears above each calendar month.
706 See the variable `calendar-month-header'.
708 *** New LaTeX calendar style, produced by `cal-tex-cursor-week2-summary'.
710 *** The calendars produced by cal-html include holidays.
711 Customize `cal-html-holidays' to change this.
713 ** Compile has a new option `compilation-always-kill'.
717 *** `custom-reset-button-menu' now defaults to t.
719 *** Non-option variables are never matched in `customize-apropos' and
720 `customize-apropos-options' (i.e., the prefix argument does nothing for
725 *** The variables `term-default-fg-color' and `term-default-bg-color'
726 are now deprecated in favor of the customizable face `term'.
728 *** You can customize how to display ANSI terminal colors and styles
729 by customizing the corresponding `term-color-<COLOR>',
730 `term-color-underline' and `term-color-bold' faces.
734 *** The syntax has been extended in order to allow ad-hoc proxy definitions.
736 *** Remote processes are now also supported on remote MS-Windows hosts.
740 *** Structs made by `url-generic-parse-url' have nil `attributes' slot.
741 Previously, this slot stored semicolon-separated attribute-value pairs
742 appended to some imap URLs, but this is not compatible with RFC 3986.
743 So now the `filename' slot stores the entire path and query components,
744 and the `attributes' slot is always nil.
746 *** New function `url-encode-url' for encoding a URI string.
747 The `url-retrieve' function now uses this to encode its URL argument,
748 in case that is not properly encoded.
750 ** notifications.el supports now version 1.2 of the Notifications API.
751 The function `notifications-get-capabilities' returns the supported
754 ** Flymake uses fringe bitmaps to indicate errors and warnings.
755 See `flymake-fringe-indicator-position', `flymake-error-bitmap' and
756 `flymake-warning-bitmap'.
758 ** The FFAP option `ffap-url-unwrap-remote' can now be a list of strings,
759 specifying URL types that should be converted to remote file names at
760 the FFAP prompt. The default is now '("ftp").
762 ** New Ibuffer `derived-mode' filter, bound to `/ M'.
763 The old binding for `/ M' (filter by used-mode) is now bound to `/ m'.
765 ** New option `mouse-avoidance-banish-position' specifies where the
766 `banish' mouse avoidance setting moves the mouse.
768 ** In Perl mode, new option `perl-indent-parens-as-block' causes non-block
769 closing brackets to be aligned with the line of the opening bracket.
771 ** In Proced mode, new command `proced-renice' renices marked processes.
773 ** New option `async-shell-command-buffer' specifies the buffer to use
774 for a new asynchronous `shell-command' when the default output buffer
775 `*Async Shell Command*' is already in use.
777 ** SQL mode has a new option `sql-db2-escape-newlines'.
778 If non-nil, newlines sent to the command interpreter will be escaped
779 by a backslash. The default does not escape the newlines and assumes
780 that the sql statement will be terminated by a semicolon.
782 ** New command `tabulated-list-sort', bound to `S' in Tabulated List mode
783 (and modes that derive from it), sorts the column at point, or the Nth
784 column if a numeric prefix argument is given.
786 ** `which-func-modes' now defaults to t, so Which Function mode, when
787 enabled, applies to all applicable major modes.
789 ** `winner-mode-hook' now runs when the mode is disabled, as well as when
792 ** Follow mode no longer works by using advice.
793 The option `follow-intercept-processes' has been removed.
795 ** `javascript-generic-mode' is now an obsolete alias for `js-mode'.
797 ** Hooks renamed to avoid obsolete "-hooks" suffix:
798 *** semantic-lex-reset-hooks -> semantic-lex-reset-functions
799 *** semantic-change-hooks -> semantic-change-functions
800 *** semantic-edits-new-change-hooks -> semantic-edits-new-change-functions
801 *** semantic-edits-delete-change-hooks -> semantic-edits-delete-change-functions
802 *** semantic-edits-reparse-change-hooks -> semantic-edits-reparse-change-functions
803 *** semanticdb-save-database-hooks -> semanticdb-save-database-functions
804 *** c-prepare-bug-report-hooks -> c-prepare-bug-report-hook
805 *** rcirc-sentinel-hooks -> rcirc-sentinel-functions
806 *** rcirc-receive-message-hooks -> rcirc-receive-message-functions
807 *** rcirc-activity-hooks -> rcirc-activity-functions
808 *** rcirc-print-hooks -> rcirc-print-functions
809 *** dbus-event-error-hooks -> dbus-event-error-functions
810 *** eieio-pre-method-execution-hooks -> eieio-pre-method-execution-functions
811 *** checkdoc-style-hooks -> checkdoc-style-functions
812 *** checkdoc-comment-style-hooks -> checkdoc-comment-style-functions
813 *** archive-extract-hooks -> archive-extract-hook
814 *** filesets-cache-fill-content-hooks -> filesets-cache-fill-content-hook
815 *** hfy-post-html-hooks -> hfy-post-html-hook
816 *** nndiary-request-create-group-hooks -> nndiary-request-create-group-functions
817 *** nndiary-request-update-info-hooks -> nndiary-request-update-info-functions
818 *** nndiary-request-accept-article-hooks -> nndiary-request-accept-article-functions
819 *** gnus-subscribe-newsgroup-hooks -> gnus-subscribe-newsgroup-functions
824 In most cases, assoc+member+push+delq work just as well.
825 And in any case it's just a terrible package: ugly semantics, terrible
826 inefficiency, and not namespace-clean.
835 * Incompatible Lisp Changes in Emacs 24.3
837 ** Docstrings starting with `*' no longer indicate user options.
838 Only variables defined using `defcustom' are considered user options.
839 The function `user-variable-p' is now an obsolete alias for
842 ** The return values of `defalias', `defun' and `defmacro' have changed,
843 and are now undefined. For backwards compatibility, `defun' and
844 `defmacro' currently return the name of the newly defined
845 function/macro, but this should not be relied upon.
847 ** `random' by default now returns a different random sequence in
848 every Emacs run. Use `(random S)', where S is a string, to set the
849 random seed to a value based on S, in order to get a repeatable
850 sequence in later calls.
852 ** If the NEWTEXT arg to `replace-match' contains a substring "\?",
853 that substring is inserted literally even if the LITERAL arg is
854 non-nil, instead of causing an error to be signaled.
856 ** `select-window' now always makes the window's buffer current.
857 It does so even if the window was selected before.
859 ** The function `x-select-font' can return a font spec, instead of a
860 font name as a string. Whether it returns a font spec or a font name
861 depends on the graphical library.
863 ** `face-spec-set' no longer sets frame-specific attributes when the
864 third argument is a frame (that usage was obsolete since Emacs 22.2).
866 ** `set-buffer-multibyte' now signals an error in narrowed buffers.
868 ** The CL package's `get-setf-method' function no longer exists.
869 Generalized variables are now part of core Emacs Lisp, and implemented
870 differently to the way cl.el used to do it. It is not possible to
871 define a compatible replacement for `get-setf-method'. See the file
872 gv.el for internal details of the new implementation.
874 ** The arguments of `dbus-register-signal' are no longer just strings,
875 but keywords or keyword-string pairs. The old argument list will
876 still be supported for Emacs 24.x.
878 ** Miscellaneous name changes
879 Some Lisp symbols have been renamed to correct their spelling,
880 or to be more consistent with standard Emacs terminology.
882 *** Renamed functions
883 **** hangul-input-method-inactivate -> hangul-input-method-deactivate
884 **** inactivate-input-method -> deactivate-input-method
885 **** quail-inactivate -> quail-deactivate
886 **** robin-inactivate -> robin-deactivate
887 **** viper-inactivate-input-method -> viper-deactivate-input-method
888 **** viper-inactivate-input-method-action ->
889 viper-deactivate-input-method-action
890 **** ucs-input-inactivate -> ucs-input-deactivate
893 The old hooks are still supported for backward compatibility, but they
894 are deprecated and will be removed eventually.
895 **** input-method-inactivate-hook -> input-method-deactivate-hook
896 **** robin-inactivate-hook -> robin-deactivate-hook
897 **** quail-inactivate-hook -> quail-deactivate-hook
899 *** Renamed variables
900 **** follow-deactive-menu -> follow-inactive-menu
901 **** inactivate-current-input-method-function ->
902 deactivate-current-input-method-function
904 ** Some obsolete functions, variables, and faces have been removed:
905 *** `last-input-char', `last-command-char', `unread-command-char'
906 *** `facemenu-unlisted-faces'
907 *** `rmail-decode-mime-charset'
908 *** `iswitchb-read-buffer'
909 *** `sc-version', `sc-submit-bug-report'
910 *** `set-char-table-default'
911 *** `string-to-sequence' (use `string-to-list' or `string-to-vector')
912 *** `compile-internal'
914 *** `mode-line-inverse-video'
915 *** `follow-mode-off-hook'
916 *** `cvs-commit-buffer-require-final-newline'
917 (use `log-edit-require-final-newline' instead)
918 *** `cvs-changelog-full-paragraphs'
919 (use `log-edit-changelog-full-paragraphs' instead)
920 *** `cvs-diff-ignore-marks', `cvs-diff-buffer-name'
921 *** `vc-ignore-vc-files' (use `vc-handled-backends' instead)
922 *** `vc-master-templates' (use `vc-handled-backends' instead)
923 *** `vc-checkout-carefully'
926 * Lisp changes in Emacs 24.3
928 ** CL-style generalized variables are now in core Elisp.
929 `setf' is autoloaded; `push' and `pop' accept generalized variables.
930 You can define your own generalized variables using `gv-define-simple-setter',
931 `gv-define-setter', etc.
933 ** Emacs tries to macroexpand interpreted (non-compiled) files during load.
934 This can significantly speed up execution of non-byte-compiled code,
935 but can also bump into previously unnoticed cyclic dependencies.
936 These are generally harmless: they will simply cause the macro calls
937 to be left for later expansion (as before), but will result in a
938 warning ("Eager macro-expansion skipped due to cycle") describing the cycle.
939 You may wish to restructure your code so this does not happen.
941 ** New sampling-based Elisp profiler.
942 Try M-x profiler-start, do some work, and then call M-x profiler-report.
943 When finished, use M-x profiler-stop. The sampling rate can be based on
944 CPU time or memory allocations.
946 ** `defun' also accepts a (declare DECLS) form, like `defmacro'.
947 The interpretation of the DECLS is determined by `defun-declarations-alist'.
949 ** New macros `setq-local' and `defvar-local'.
951 ** Face underlining can now use a wave.
953 ** `read-regexp' has a new argument HISTORY; the first argument PROMPT
954 of `read-regexp' accepts a string ending with a colon and space, and its
955 second argument DEFAULTS can be a list of strings accessible via `M-n'
956 in the minibuffer ahead of other hard-coded useful regexp-related values.
957 More commands use `read-regexp' now to read their regexp arguments.
961 *** New function `completion-table-with-quoting' to handle completion
962 in the presence of quoting, such as file completion in shell buffers.
964 *** New function `completion-table-subvert' to use an existing completion
965 table, but with a different prefix.
969 *** New error type and new function `user-error'.
970 These do not trigger the debugger.
972 *** New option `debugger-bury-or-kill', saying what to do with the
973 debugger buffer when exiting debug.
975 *** Set `debug-on-message' to enter the debugger when a certain
976 message is displayed in the echo area. This can be useful when trying
977 to work out which code is doing something.
979 *** New var `inhibit-debugger', automatically set to prevent accidental
980 recursive invocations.
984 *** New command `fit-frame-to-buffer' adjusts the frame height to
987 *** The command `fit-window-to-buffer' can adjust the frame height
988 if the new option `fit-frame-to-buffer' is non-nil.
990 *** New macro `with-temp-buffer-window', similar to
991 `with-output-to-temp-buffer'.
993 *** `temp-buffer-resize-mode' no longer resizes windows that have been
996 *** New option `switch-to-buffer-preserve-window-point' to restore a
997 window's point when switching buffers.
999 *** New display action alist entries `window-height' and `window-width'
1000 specify the size of new windows created by `display-buffer'.
1002 *** New display action alist entry `pop-up-frame-parameters', if
1003 non-nil, specifies frame parameters to give any newly-created frame.
1005 *** New display action alist entry `inhibit-switch-frame', if non-nil,
1006 tells display action functions to avoid changing which frame is
1009 *** New display action alist entry `previous-window', if non-nil,
1010 specifies window to reuse in `display-buffer-in-previous-window'.
1012 *** New display action functions `display-buffer-below-selected',
1013 and `display-buffer-in-previous-window'.
1015 *** The functions `get-lru-window', `get-mru-window' and `get-largest-window'
1016 now accept a third argument to avoid choosing the selected window.
1018 *** Additional values recognized for option `window-combination-limit'.
1020 *** The following variables are obsolete, as they can be replaced by
1021 appropriate entries in the `display-buffer-alist' function introduced
1023 **** `dired-shrink-to-fit'
1024 **** `display-buffer-reuse-frames'
1025 **** `display-buffer-function'
1026 **** `special-display-buffer-names'
1027 **** `special-display-frame-alist'
1028 **** `special-display-function'
1029 **** `special-display-regexps'
1033 *** `current-time-string' no longer requires that its argument's year
1034 must be in the range 1000..9999. It now works with any year supported
1035 by the underlying C implementation.
1037 *** `current-time' now returns extended-format time stamps
1038 (HIGH LOW USEC PSEC), where the new PSEC slot specifies picoseconds.
1039 PSEC is typically a multiple of 1000 on current machines. Other
1040 functions that use this format, such as `file-attributes' and
1041 `format-time-string', have been changed accordingly. Old-format time
1042 stamps are still accepted.
1044 *** The format of timers in `timer-list' and `timer-idle-list' is now
1045 [TRIGGERED-P HI-SECS LO-SECS USECS REPEAT-DELAY FUNCTION ARGS IDLE-DELAY PSECS].
1046 The PSECS slot is new, and uses picosecond resolution. It can be
1047 accessed via the new `timer--psecs' accessor.
1049 *** Last-modified time stamps in undo lists now are of the form
1050 (t HI-SECS LO-SECS USECS PSECS) instead of (t HI-SECS . LO-SECS).
1052 ** Floating point functions now always return special values like NaN,
1053 instead of signaling errors, if given invalid args; e.g., (log -1.0).
1054 Previously, they returned NaNs on some platforms but signaled errors
1055 on others. The affected functions are acos, asin, tan, exp, expt,
1056 log, log10, sqrt, and mod.
1058 ** New fringe bitmap `exclamation-mark'.
1060 ** Miscellaneous changes to special forms and macros
1062 *** `defun' and `defmacro' are now macros rather than special forms.
1064 *** `kbd' is now a function rather than a macro.
1066 ** Miscellaneous new functions
1068 *** `set-temporary-overlay-map' sets up a temporary keymap that
1069 takes precedence over most other maps for a short while (normally one key).
1071 *** `autoloadp' tests if its argument is an autoloaded object.
1073 *** `autoload-do-load' performs the autoloading operation.
1075 *** `buffer-narrowed-p' tests if the buffer is narrowed.
1077 *** `file-name-base' returns a file name sans directory and extension.
1079 *** `function-get' fetches a function property, following aliases.
1081 *** `posnp' tests if an object is a `posn'.
1083 *** `system-users' returns the user names on the system.
1085 *** `system-groups' returns the group names on the system.
1087 *** `tty-top-frame' returns the topmost frame of a text terminal.
1089 ** The following functions and variables are obsolete:
1090 *** `automount-dir-prefix' (use `directory-abbrev-alist')
1091 *** `buffer-has-markers-at'
1092 *** `macro-declaration-function' (use `macro-declarations-alist')
1093 *** `window-system-version' (provides no useful information)
1094 *** `dired-pop-to-buffer' (use `dired-mark-pop-up')
1095 *** `query-replace-interactive'
1096 *** `font-list-limit' (has had no effect since Emacs < 23)
1099 * Changes in Emacs 24.3 on non-free operating systems
1101 ** Cygwin builds can use the native MS Windows user interface.
1102 Pass `--with-w32' to configure. The default remains the X11 interface.
1104 ** Two new functions are available in Cygwin builds:
1105 `cygwin-convert-file-name-from-windows' and
1106 `cygwin-convert-file-name-to-windows'. These functions allow Lisp
1107 code to access the Cygwin file-name mapping machinery to convert
1108 between Cygwin and Windows-native file and directory names.
1110 ** When invoked with the -nw switch to run on the Windows text-mode terminal,
1111 Emacs now supports `mouse-highlight', help-echo (in the echo area), and
1112 `mouse-autoselect-window'.
1114 ** On MS Windows Vista and later Emacs now supports symbolic links.
1116 ** On MS Windows, you can pass `--without-libxml2' to configure.bat to omit
1117 support for libxml2, even if its presence is detected.
1119 ** On Mac OS X, the Nextstep port requires OS X 10.4 or later.
1121 ** On Mac OS X, configure no longer automatically adds the Fink "/sw"
1122 directories to the search path. You must add them yourself if you want them.
1125 * Changes in Emacs 24.2
1127 ** This is mainly a bug-fix release.
1130 * Installation Changes in Emacs 24.1
1132 ** Emacs can be compiled with Gtk+ 3.0 if you pass --with-x-toolkit=gtk3
1133 to configure. Note that other libraries used by Emacs, RSVG and GConf,
1134 also depend on Gtk+. You can disable them with --without-rsvg and
1137 ** Emacs can be compiled with GnuTLS support.
1138 This happens by default if a suitably recent version of the library is
1139 found at build time. To prevent this, use the configure option
1140 `--without-gnutls'. See below for GnuTLS features.
1142 ** Emacs can be compiled with SELinux support.
1143 This happens by default if a suitably recent version of the library is
1144 found at build time. To prevent this, use the configure option
1145 `--without-selinux'. See below for SELinux features.
1147 ** Emacs can be compiled with ImageMagick support.
1148 This happens by default if a suitably recent version of the library is
1149 found at build time. To prevent this, use the configure option
1150 `--without-imagemagick'. See below for ImageMagick features.
1151 This feature is not available for the Nextstep or MS ports.
1153 ** Emacs can be compiled with libxml2 support.
1154 This happens by default if a suitably recent version of the library is
1155 found at build time. To prevent this, use the configure option
1156 `--without-xml2'. See below for libxml2 features.
1158 ** By default, the installed Info and man pages are compressed.
1159 You can disable this by configuring --without-compress-info.
1161 ** New configure option --with-wide-int.
1162 With it, Emacs integers typically have 62 bits, even on 32-bit machines.
1163 On 32-bit hosts, this raises the limit on buffer sizes from about 512 MiB
1166 ** New configure options: --with-mmdf, --with-mail-unlink, --with-mailhost.
1167 These provide no new functionality, they just remove the need to edit
1168 lib-src/Makefile by hand in order to use the associated features.
1170 ** New configure option --enable-use-lisp-union-type.
1171 This is only useful for Emacs developers to debug certain types of bugs.
1172 This is not a new feature; only the configure flag is new.
1174 ** The standalone programs digest-doc and sorted-doc are removed.
1175 Emacs now uses Lisp commands `doc-file-to-man' and `doc-file-to-info'.
1177 ** The standalone program `fakemail' is removed.
1178 If you need it, feedmail.el provides a superset of the functionality.
1181 * Startup Changes in Emacs 24.1
1183 ** The --unibyte, --multibyte, --no-multibyte, and --no-unibyte
1184 command line arguments, and the EMACS_UNIBYTE environment variable, no
1185 longer have any effect. (They were declared obsolete in Emacs 23.)
1187 ** New command line option `--no-site-lisp' removes site-lisp directories
1188 from load-path. -Q now implies this. This option does not affect the
1189 EMACSLOADPATH environment variable (and hence has no effect for
1193 * Changes in Emacs 24.1
1197 *** Many packages now use the `completion-at-point' command,
1198 rather than implementing separate completion commands.
1200 *** `completion-at-point' now handles tags and semantic completion.
1202 *** Completion in a non-minibuffer now tries to detect the end of completion
1203 and pops down the *Completions* buffer accordingly.
1205 *** New option `completion-cycle-threshold' allows completion cycling.
1207 *** New option `completion-category-overrides' for overriding the
1208 default completion style in certain circumstances.
1210 *** New completion style `substring'.
1212 *** Completion of buffer names uses `substring' completion by default.
1214 *** The option `widget-complete-field' has been removed.
1218 *** The first time you try sending mail, Emacs asks for a mail method.
1219 This is implemented by a new default for `send-mail-function', which
1220 is `sendmail-query-once'. This offers to use the smtpmail package, or
1221 to use the old defaults relying on external mail facilities
1222 (`sendmail-send-it' on GNU/Linux and other Unix-like systems, and
1223 `mailclient-send-it' on Windows).
1225 *** Typing C-c m in the buffer made by M-x report-emacs-bug transfers
1226 the report to your desktop's preferred mail client, if there is one.
1227 This uses either the "xdg-email" utility, or Mac OS's "open" command.
1229 *** See Changes in Specialized Modes and Packages for SMTPmail changes
1230 and Mail mode changes
1232 ** Emacs server and client changes
1234 *** New option `server-port' specifies the port for TCP Emacs servers.
1236 *** New emacsclient argument -q/--quiet suppresses some status messages.
1238 *** New emacsclient argument --frame-parameters specifies the frame
1239 parameters of any newly-created graphical frame.
1241 *** If emacsclient shuts down due to Emacs signaling an error,
1242 its exit status is 1.
1244 *** New emacsclient argument --parent-id ID.
1245 This opens a client frame in parent X window ID, via XEmbed, similar
1246 to the --parent-id argument to Emacs.
1248 ** Internationalization changes
1250 *** Emacs now supports display and editing of bidirectional text.
1251 Right-to-left (RTL) scripts, such as Arabic, Farsi, and Hebrew, are
1252 displayed in the correct visual order as expected by users of those
1253 scripts. The display reordering is a "full bidirectionality" class
1254 implementation of the Unicode Bidirectional Algorithm (UBA). Buffers
1255 with no RTL text should look exactly the same as before.
1257 **** New buffer-local variable `bidi-display-reordering'.
1258 To disable display reordering in a buffer, change this to nil.
1260 **** New buffer-local variable `bidi-paragraph-direction'.
1261 If nil (the default), Emacs determines the base direction of each
1262 paragraph from its text, as specified by the UBA. Setting the value
1263 to `right-to-left' or `left-to-right' forces a base direction on each
1266 Paragraphs with right-to-left base direction are displayed starting at
1267 the right window edge.
1269 *** Enhanced support for characters with no glyphs in available fonts,
1270 or, on text terminals, characters that cannot be encoded by the
1271 terminal coding system. The new option `glyphless-char-display-control'
1272 specifies how to display them: as a hexadecimal code in a box, a thin
1273 1-pixel space, an empty box, etc.
1275 *** New input methods for Farsi and Bulgarian
1276 (farsi-isiri-9147, farsi-transliterate-banan, bulgarian-alt-phonetic).
1278 *** `nobreak-char-display' now also highlights Unicode hyphen chars
1279 (U+2010 and U+2011).
1281 *** New Hebrew translation of the Emacs Tutorial.
1282 Type `C-u C-h t' to choose it in case your language setup doesn't
1283 automatically select it.
1285 ** An Emacs Lisp package manager is now included.
1286 This is a convenient way to download and install additional packages,
1287 from a package repository at http://elpa.gnu.org.
1289 *** M-x list-packages shows a list of packages, which can be
1290 selected for installation.
1292 *** New command `describe-package', bound to `C-h P'.
1294 *** By default, all installed packages are loaded automatically when
1295 Emacs starts up. To disable this, set `package-enable-at-startup' to
1296 nil. To specify the packages to load, customize `package-load-list'.
1298 ** Custom theme changes
1300 *** New command `M-x customize-themes', which provides a convenient
1301 interface for enabling and disabling Custom themes.
1303 *** New option `custom-theme-load-path' is the load path for themes.
1304 Emacs no longer looks for Custom themes in `load-path'. The default
1305 value of `custom-theme-load-path' says to look for themes in
1306 `custom-theme-directory', followed by a subdirectory of
1307 `data-directory' named "themes/", which contains a small selection of
1308 built-in Custom themes.
1310 *** New option `custom-safe-themes' records known-safe theme files.
1311 If a theme is not in this list, Emacs queries before loading it, and
1312 offers to save the theme to `custom-safe-themes' automatically. By
1313 default, all themes included in Emacs are treated as safe.
1315 ** Improved GTK integration
1317 *** GTK scroll-bars are now placed on the right by default.
1318 The function `set-scroll-bar-mode' can change this.
1320 *** GTK tool bars can have just text, just images or images and text.
1321 Customize `tool-bar-style' to choose the style. On a Gnome desktop,
1322 the default is taken from desktop settings.
1324 *** GTK tool bars can be placed on any edge of the frame.
1325 The frame-parameter tool-bar-position controls this. It takes the
1326 values top, left, right or bottom. The Options => Show/Hide menu has
1329 *** The default colors for selected text (the `region' face) are taken
1330 from the GTK theme when Emacs is built with GTK.
1332 *** Emacs uses GTK tooltips by default if built with GTK.
1333 You can disable this by changing `x-gtk-use-system-tooltips' to nil.
1335 ** Graphical interface changes
1337 *** On graphical displays, the mode-line no longer ends in dashes.
1338 Also, the first dash (which does not indicate anything) is just
1339 displayed as a space.
1341 *** `menu-bar-select-buffer-function' lets you choose another operation
1342 instead of `switch-to-buffer' when selecting an item in the Buffers menu.
1344 *** Lucid menus and dialogs can display antialiased fonts if Emacs is
1345 built with Xft. These fonts can be set via X resources, for example:
1346 Emacs.pane.menubar.font: Courier-12
1350 *** Emacs now calls `kill-emacs' if it receives SIGTERM or SIGHUP,
1351 or if it receives a SIGINT signal in batch mode.
1353 *** `kill-emacs-hook' is now also run in batch mode.
1354 Third-party code which adds to `kill-emacs-hook' should check if they
1355 do the right thing in batch mode.
1357 ** Scrolling changes
1359 *** New scrolling commands `scroll-up-command' and `scroll-down-command'
1360 (bound to C-v/[next] and M-v/[prior]) do not signal errors at top/bottom
1361 of buffer at first key-press (instead they move to top/bottom of buffer)
1362 when `scroll-error-top-bottom' is non-nil.
1364 *** New option `scroll-error-top-bottom' (see above).
1366 *** New scrolling commands `scroll-up-line' and `scroll-down-line'
1367 scroll a line instead of full screen.
1369 *** New property `scroll-command' should be set on a command's symbol to
1370 define it as a scroll command affected by `scroll-preserve-screen-position'.
1372 *** If you customize `scroll-conservatively' to a value greater than 100,
1373 Emacs will never recenter point in the window when it scrolls due to
1374 cursor motion commands or commands that move point (e.f., `M-g M-g').
1375 Previously, you needed to use `most-positive-fixnum' as the value of
1376 `scroll-conservatively' to achieve the same effect.
1378 *** "Aggressive" scrolling now honors the scroll margins.
1379 If you customize `scroll-up-aggressively' or
1380 `scroll-down-aggressively' and move point off the window, Emacs now
1381 scrolls the window so as to avoid positioning point inside the scroll
1384 ** Basic SELinux support has been added.
1385 This requires Emacs to be linked with libselinux at build time.
1387 *** Emacs preserves the SELinux file context when backing up.
1388 Also, the function `copy-file' has an extra optional argument for
1389 preserving SELinux context, and the return value of `backup-buffer'
1390 now includes the SELinux context.
1392 *** New functions `file-selinux-context' and `set-file-selinux-context'
1393 get and set the SELinux context of a file.
1397 *** `delete-by-moving-to-trash' now only affects commands that specify
1398 trashing. This avoids inadvertently trashing temporary files.
1400 *** Calling `delete-file' or `delete-directory' with a prefix argument
1401 now forces true deletion, regardless of `delete-by-moving-to-trash'.
1403 ** File- and directory-local variable changes
1405 *** You can stop directory local vars from applying to subdirectories.
1406 Add an element (subdirs . nil) to the alist portion of any variables
1407 settings to indicate that the section should not apply to
1410 *** Directory local variables can apply to some file-less buffers.
1411 Affected modes include dired, vc-dir, and log-edit. For example,
1412 adding "(diff-mode . ((mode . whitespace)))" to .dir-locals.el will
1413 turn on `whitespace-mode' for *vc-diff* buffers. Modes should call
1414 `hack-dir-local-variables-non-file-buffer' to support this.
1416 *** Using "mode: MINOR-MODE" to enable a minor mode is deprecated.
1417 Instead, use "eval: (minor-mode 1)".
1419 *** The variable `inhibit-first-line-modes-regexps' has been renamed
1420 to `inhibit-local-variables-regexps'. As the name suggests, it now
1421 applies to ALL file local variables, not just -*- lines. The
1422 associated `inhibit-first-line-modes-suffixes' has been renamed in the
1427 *** The `quit-window' command now restores the last buffer displayed
1428 in the quitted window.
1430 *** Resizing an Emacs frame now preserves proportional window sizes,
1431 modulo restrictions like window minimum sizes and fixed-size windows.
1433 *** The behavior of `display-buffer' is now customizable in detail.
1435 **** New option `display-buffer-base-action' specifies a list of
1436 user-determined display "actions" (functions and optional arguments
1437 for choosing the displaying window).
1439 This takes precedence over the default display action, which is
1440 specified by `display-buffer-fallback-action'.
1442 **** New option `display-buffer-alist' maps buffer name regexps to
1443 display actions, taking precedence over `display-buffer-base-action'.
1445 *** New option `window-combination-limit'.
1446 The new option `window-combination-limit' allows to return the space
1447 obtained for resizing or creating a window more reliably to the window
1448 from which such space was obtained.
1450 *** New option `window-combination-resize'.
1451 The new option `window-combination-resize' allows to split a window that
1452 otherwise cannot be split because it's too small by stealing space from
1453 other windows in the same combination. Subsequent resizing or deletion
1454 of the window will resize all windows in the same combination as well.
1456 *** New option `frame-auto-hide-function' lets you choose between
1457 iconifying or deleting a frame when burying a buffer in a dedicated
1458 frame, or quitting a window showing a buffer in a frame of its own.
1460 *** New commands `maximize-window' and `minimize-window'.
1461 These maximize and minimize the size of a window within its frame.
1463 *** New commands `switch-to-prev-buffer' and `switch-to-next-buffer'.
1464 These functions allow to navigate through the live buffers that have
1465 been shown in a specific window.
1467 ** Minibuffer changes
1469 *** The inactive minibuffer has its own major mode `minibuffer-inactive-mode'.
1470 This is handy for minibuffer-only frames, and is also used for the feature
1471 where mouse-1 pops up *Messages*"', which can now easily be changed.
1473 *** Minibuffers set `truncate-lines' to nil.
1474 If you want to change the value to something else, you could use
1475 for example `minibuffer-setup-hook'.
1477 ** `auto-mode-case-fold' is now enabled by default.
1479 ** `backup-by-copying-when-mismatch' now defaults to t.
1481 ** New basic faces `error', `warning', `success'.
1482 These are used to highlight text indicating failure, caution or
1483 successful operation.
1485 ** New option `list-colors-sort' defines the color sort order
1486 for `list-colors-display'.
1488 ** The variable `focus-follows-mouse' now always defaults to nil.
1491 * Editing Changes in Emacs 24.1
1495 *** C-y in Isearch is now bound to `isearch-yank-kill', instead of
1496 `isearch-yank-line'.
1498 *** M-y in Isearch is now bound to `isearch-yank-pop', instead of
1499 `isearch-yank-kill'.
1501 *** M-s C-e in Isearch is now bound to `isearch-yank-line'.
1503 ** New commands `count-words-region' and `count-words'.
1505 *** M-= is bound to `count-words-region', not `count-lines-region'.
1506 The `count-words-region' command, when called interactively, reports
1507 the number of lines, words, and characters in the region. It is a
1508 superset of the old `count-lines-region', which is now an obsolete
1511 ** The command `just-one-space' (M-SPC), if given a negative argument,
1512 also deletes newlines around point.
1516 *** New option `delete-active-region'.
1517 If non-nil, [delete] and DEL delete the region if it is active and no
1518 prefix argument is given. If set to `kill', those commands kill
1521 *** New command `delete-forward-char', bound to [delete].
1522 This is meant for interactive use, and obeys `delete-active-region'.
1523 The command `delete-char' does not obey `delete-active-region'.
1525 *** `delete-backward-char' is now a Lisp function.
1526 Apart from obeying `delete-active-region', its behavior is unchanged.
1527 However, the byte compiler now warns if it is called from Lisp; Lisp
1528 callers should use delete-char with a negative argument instead.
1530 *** The option `mouse-region-delete-keys' has been deleted.
1532 ** Selection changes.
1534 The default handling of clipboard and primary selections has been
1535 changed to conform with modern X applications. In short, most
1536 commands for killing and yanking text now use the clipboard, while
1537 mouse commands use the primary selection.
1539 In the following, we provide a list of these changes, followed by a
1540 list of steps to get the old behavior back if you prefer that.
1542 *** `select-active-regions' now defaults to t.
1543 Merely selecting text (e.g. with drag-mouse-1) no longer puts it in
1544 the kill ring. The selected text is put in the primary selection, if
1545 the system possesses a separate primary selection facility (e.g. X).
1547 **** `select-active-regions' also accepts a new value, `only'.
1548 This means to only set the primary selection for temporarily active
1549 regions (usually made by mouse-dragging or shift-selection);
1550 "ordinary" active regions, such as those made with C-SPC followed by
1551 point motion, do not alter the primary selection.
1553 **** `mouse-drag-copy-region' now defaults to nil.
1555 *** mouse-2 is now bound to `mouse-yank-primary'.
1556 This pastes from the primary selection, ignoring the kill-ring.
1557 Previously, mouse-2 was bound to `mouse-yank-at-click'.
1559 *** `x-select-enable-clipboard' now defaults to t on all platforms.
1561 *** `x-select-enable-primary' now defaults to nil.
1562 Thus, commands that kill text or copy it to the kill-ring (such as
1563 M-w, C-w, and C-k) also use the clipboard---not the primary selection.
1565 **** The "Copy", "Cut", and "Paste" items in the "Edit" menu are now
1566 exactly equivalent to M-w, C-w, and C-y respectively.
1568 **** Note that on MS-Windows, `x-select-enable-clipboard' was already
1569 non-nil by default, as Windows does not support the primary selection
1570 between applications.
1572 *** To return to the previous behavior, do the following:
1574 **** Change `select-active-regions' to nil.
1575 **** Change `mouse-drag-copy-region' to t.
1576 **** Change `x-select-enable-primary' to t (on X only).
1577 **** Change `x-select-enable-clipboard' to nil.
1578 **** Bind `mouse-yank-at-click' to mouse-2.
1580 *** Support for X cut buffers has been removed.
1582 *** X clipboard managers are now supported.
1583 To inhibit this, change `x-select-enable-clipboard-manager' to nil.
1585 ** New command `C-x r N' (`rectangle-number-lines') numbers the lines
1586 in the current rectangle. With a prefix argument, this prompts for a
1587 number to count from and for a format string.
1589 ** `redisplay-dont-pause' now defaults to t.
1590 This makes Emacs feel more responsive to editing commands that arrive
1591 at high rate, e.g. if you lean on some key, because stopping redisplay
1592 in the middle (when this variable is nil) forces more expensive
1593 updates later on, and Emacs appears to be unable to keep up.
1595 ** The behavior of <TAB> for active regions in Text mode has changed.
1596 In Text and related modes, typing <TAB> (`indent-for-tab-command')
1597 when the region is active causes Emacs to indent all the lines in the
1598 region, aligning them with the line previous to the first line in the
1599 region (or with the left margin if there is no previous line).
1601 ** When `occur' is called with a prefix argument, matching strings are
1602 collected into the `*Occur*' buffer without line numbers. If there
1603 are parenthesized subexpressions in the specified regexp, `occur'
1604 reads replacement text that may contain \\& and \\N whose convention
1605 follows `replace-match'.
1608 * Changes in Specialized Modes and Packages in Emacs 24.1
1610 ** Archive Mode has basic support for browsing and updating 7z archives.
1614 *** BibTeX mode now supports biblatex.
1615 Use the variable `bibtex-dialect' to select different BibTeX dialects.
1616 `bibtex-entry-field-alist' is now an obsolete alias for
1617 `bibtex-BibTeX-entry-alist'.
1619 *** New command `bibtex-search-entries', bound to C-c C-a.
1621 *** New `bibtex-entry-format' option `sort-fields', disabled by default.
1623 *** New variable `bibtex-search-entry-globally'.
1627 *** New option `browse-url-mailto-function' specifies how to handle "mailto:"s.
1629 *** The default browser used by the package is now the "xdg-open" program,
1630 on platforms that support it. This calls your desktop's preferred browser.
1632 ** Calendar, Diary, and Appt
1634 *** Diary entries can contain non-printing "comments".
1635 See the variable `diary-comment-start'.
1637 *** Appointments can specify their individual warning times.
1638 See the variable `appt-warning-time-regexp'.
1640 *** The function specified by `appt-disp-window-function' may be passed
1641 lists of arguments if multiple appointments are due at similar times.
1642 If you are using a custom function for this, you should update it.
1644 *** New function `diary-hebrew-birthday'.
1646 *** Elements of `calendar-day-abbrev-array' and `calendar-month-abbrev-array'
1647 may no longer be nil, but must all be strings.
1649 *** The obsolete (since Emacs 22.1) method of enabling the appt
1650 package by adding `appt-make-list' to `diary-hook' has been removed.
1651 Use `appt-activate' instead.
1653 *** Some appt variables (obsolete since Emacs 22.1) have been removed:
1654 appt-issue-message (use the function appt-activate)
1655 appt-visible/appt-msg-window (use the variable appt-display-format)
1657 *** Some diary function aliases (obsolete since Emacs 22.1) have been removed:
1658 view-diary-entries, list-diary-entries, show-all-diary-entries
1662 *** New feature to "guess" the style in an existing buffer.
1663 The main entry point is M-x c-guess.
1665 *** Java Mode now supports Java 5.0 (Tiger) and 6 (Mustang).
1667 *** `c-beginning-of-defun' and `c-end-of-defun' now respect nested scopes.
1668 Thus C-M-a will, by default, go to the beginning of the immediate function,
1671 *** "Macros with semicolons" can be registered for correct indentation.
1672 Where such a macro ends a line (no semicolon) the next statement is no longer
1673 parsed as a statement continuation.
1675 ** Comint and modes derived from it use the standard completion code.
1679 *** Compilation mode can be used without Font Lock mode.
1680 `compilation-parse-errors-function' is now obsolete.
1682 *** New variable `compilation-filter-start', which is bound while
1683 `compilation-filter-hook' runs. It records the start position of the
1684 text inserted by `compilation-filter'.
1686 *** `compilation-error-screen-columns' and `compilation-first-column'
1687 are obeyed in the editing buffer. So programming language modes can
1688 set them, whereas previously only the value in the *Compilation*
1693 *** Customize buffers now contain a search field.
1694 The search is performed using `customize-apropos'.
1695 To turn off the search field, set `custom-search-field' to nil.
1697 *** Options in customize group buffers start out hidden if not customized.
1698 Use the arrow to the left of the option name to toggle visibility.
1700 *** custom-buffer-sort-alphabetically now defaults to t.
1702 *** The color widget now has a "Choose" button, which allows you to
1703 choose a color via `list-colors-display'.
1707 *** It is now possible to access buses other than the default system
1710 *** The `dbus-register-method' and `dbus-register-property' functions
1711 optionally do not register names.
1713 *** The new function `dbus-register-service' registers a known service
1714 name on a D-Bus without also registering a property or a method.
1718 *** C-x C-j (`dired-jump') and C-x 4 C-j (`dired-jump-other-window'),
1719 if called with a prefix argument, read a file name from the minibuffer
1720 instead of using the current buffer.
1722 *** The "dired local variables" feature of Dired-x is obsolete.
1723 The standard directory local variables feature replaces it.
1727 *** New options `erc-autojoin-timing' and `erc-autojoin-delay',
1728 controlling attempts to autojoin a channel.
1730 *** New variable `erc-coding-system-precedence': If we use `undecided'
1731 as the server coding system, this variable will then be consulted.
1732 The default is to decode strings that can be decoded as utf-8 as
1733 utf-8, and do the normal `undecided' decoding for the rest.
1737 *** The default value of `eshell-directory-name' has changed
1738 to be an "eshell" directory in `user-emacs-directory'.
1739 The old "~/.eshell/" directory is still used if it exists, though.
1743 *** The M-x gdb command now uses the GDB Machine Interface protocol.
1744 It now supports multithread non-stop debugging and simultaneous
1745 debugging of several threads.
1749 *** RET (`image-toggle-animation') toggles animation, if applicable.
1750 Animation plays once, unless the option `image-animate-loop' is non-nil.
1754 *** New command M-x info-display-manual displays a named Info manual.
1755 If that manual is already visited in some Info buffer, it displays
1756 that buffer. (This is handy if you have many manuals in many *info*
1757 buffers, and don't remember the name of the buffer visiting the manual
1758 you want to consult.) Otherwise, it loads and displays the manual.
1760 *** `e' is now bound to `end-of-buffer' rather than to `Info-edit'.
1761 This is for compatibility with the stand-alone Info reader program,
1762 and also because `Info-edit' is a rarely used command that is disabled
1765 ** Mail mode changes (not Message mode)
1767 *** New command M-x mail-add-attachment for adding MIME attachments
1769 *** The command M-x mail-attach-file was renamed to M-x mail-insert-file.
1770 (Its name is misleading, since it has nothing to do with MIME
1771 attachments.) The old name is now an obsolete alias to the new name.
1773 ** MH-E has been updated to MH-E version 8.3.1.
1774 See MH-E-NEWS for details.
1776 ** Modula-2 mode provides auto-indentation.
1778 ** mpc.el: Can use pseudo tags of the form tag1|tag2 as a union of two tags.
1780 ** nXML mode no longer binds C-RET to `nxml-complete'.
1781 Completion is now performed via `completion-at-point', bound to C-M-i
1782 or M-TAB. If `nxml-bind-meta-tab-to-complete-flag' is non-nil (the
1783 default), this performs tag completion.
1785 ** Org mode has been updated to version 7.8.09.
1786 See ORG-NEWS for details.
1788 ** Prolog mode has been completely revamped, with lots of additional
1789 functionality such as more intelligent indentation, electricity,
1790 support for more variants, including Mercury, and a lot more.
1794 *** The command `rmail-epa-decrypt' decrypts OpenPGP data
1795 in the Rmail incoming message.
1797 *** The variable `rmail-message-filter' no longer has any effect.
1798 This change was made in Emacs 23.1 but was not advertised at the time.
1799 Try using `rmail-show-message-hook' instead.
1803 *** M-x shell prompts for the shell path name if the default directory
1804 is a remote file name and neither the environment variable $ESHELL nor
1805 the variable `explicit-shell-file-name' is set.
1807 *** TAB is now bound to the standard `completion-at-point' command,
1808 which now implements the pcomplete rules for shell command completion.
1812 *** SMTPmail now uses encrypted connections (via STARTTLS) by default
1813 if the mail server supports them. This uses either built-in GnuTLS
1814 support, or the starttls.el library. Customize `smtpmail-stream-type'
1817 *** The variable `smtpmail-auth-credentials' has been removed.
1818 By default, the information is now stored in the file ~/.authinfo.
1819 This was the default value of smtpmail-auth-credentials. If you had
1820 customized smtpmail-auth-credentials to a list of user names and
1821 passwords, those settings are not used. During your first connection
1822 to the smtp server, Emacs will prompt for the user name and password,
1823 and offer to save them to ~/.authinfo. Or you can manually copy the
1824 credentials to ~/.authinfo. For example, if you had
1826 (setq smtpmail-auth-credentials
1827 '(("mail.example.org" 25 "jim" "s!cret")))
1829 then the equivalent line in ~/.authinfo would be
1831 machine mail.example.org port 25 login jim password s!cret
1833 See the auth-source manual for more information, e.g. on encrypting
1834 the credentials file.
1836 *** The variable `smtpmail-starttls-credentials' has been removed.
1837 If you had that set, you need to put
1839 machine smtp.whatever.foo port 25 key "~/.my_smtp_tls.key" cert "~/.my_smtp_tls.cert"
1841 in your ~/.authinfo file instead.
1843 *** SMTPmail defaults to using the address in the From: header as the
1844 SMTP MAIL FROM envelope. To override this, set `mail-envelope-from'
1845 to the address you wish to use instead.
1849 *** New options `sql-port', `sql-connection-alist', `sql-send-terminator',
1850 and `sql-oracle-scan-on'.
1852 *** New options controlling prompting for login parameters.
1853 Each supported product has a custom variable `sql-*-login-params',
1854 which is a list of the parameters to be prompted for before a
1855 connection is established.
1857 *** The command `sql-product-interactive' now takes a prefix argument,
1858 which causes it to prompt for an SQL product.
1860 *** Product-specific SQL interactive commands now take prefix arguments.
1861 These commands (`sql-sqlite', `sql-postgres', `sql-mysql', etc.),
1862 given a prefix argument, prompt for a name for the SQL interactive
1863 buffer. This reduces the need for calling `sql-rename-buffer'.
1865 *** SQL interactive modes suppress command continuation prompts, and
1866 replace tabs with spaces. The first change impacts multiple line SQL
1867 statements entered with C-j between each line, statements yanked into
1868 the buffer and statements sent with `sql-send-*' functions. The
1869 second prevents the MySQL and Postgres interpreters from listing
1870 object name completions when sent text via `sql-send-*' functions.
1872 *** New command `sql-connect' starts a predefined SQLi session,
1873 using the login parameters from `sql-connection-alist'.
1875 *** New "Save Connection" menu item in SQLi buffers.
1876 This gathers the login params specified for the SQLi session, if it
1877 was not started by a connection, and saves them as a new connection.
1879 *** New commands for listing database objects and details:
1880 sql-list-all and sql-list-table.
1882 *** An API for manipulating SQL product definitions has been added.
1886 *** latex-electric-env-pair-mode keeps \begin..\end matched on the fly.
1890 *** New inline access method "ksu" (kerberized su).
1892 *** The following access methods are discontinued: "ssh1_old",
1893 "ssh2_old", "scp1_old", "scp2_old", "imap", "imaps" and "fish".
1895 *** The user option `remote-file-name-inhibit-cache' controls whether
1896 remote file attributes are cached for better performance.
1898 *** The option `ange-ftp-binary-file-name-regexp' has changed its
1899 default value to "".
1901 *** Handlers for `file-selinux-context' and `set-file-selinux-context'
1902 for remote machines which support SELinux.
1904 ** New function `url-queue-retrieve', which behaves like url-retrieve,
1905 but with limits (`url-queue-parallel-processes', `url-queue-timeout') on
1906 the degree of parallelism.
1908 ** VC and related modes
1910 *** Support for pulling on distributed version control systems.
1911 The command C-x v + (`vc-pull') runs a "pull" operation, if it is
1912 supported (currently with Bzr, Git, and Mercurial), to update the
1913 current branch and working tree. A prefix argument means to prompt
1914 the user for specifics, e.g. a pull location.
1916 *** `vc-update' is now an alias for `vc-pull'.
1918 *** Support for merging on distributed version control systems.
1919 The command C-x v m (`vc-merge') now runs a "merge" operation, if it
1920 is supported (currently with Bzr, Git, and Mercurial), to merge
1921 changes from another branch into the current one. It prompts for
1922 specifics, e.g. a merge source.
1924 *** New option `vc-revert-show-diff' controls whether `vc-revert'
1925 shows a diff while querying the user. It defaults to t.
1927 *** Log entries in some Log View buffers can be toggled to display a
1928 longer description by typing RET (log-view-toggle-entry-display).
1929 This is currently supported for Bzr, Git, and Mercurial (to support
1930 another backend, define a `log-view-expanded-log-entry-function').
1931 In the Log View buffers made by C-x v L (`vc-print-root-log'), you can
1932 use this to display the full log entry for the revision at point.
1934 *** New command `vc-ediff' allows visual comparison of two revisions
1935 of a file similar to `vc-diff', but using ediff backend.
1937 *** The option `vc-initial-comment' was removed in Emacs 23.2, but
1938 this was not advertised at the time.
1940 *** `vc-toggle-read-only' is an obsolete alias for `toggle-read-only'.
1941 Since Emacs 23, it has done the same thing as `toggle-read-only', but
1942 this was not advertised at the time.
1948 *** erc-hecomplete.el (use erc-pcomplete.el instead)
1950 *** partial-completion-mode (complete.el) is obsolete.
1951 You can get a comparable behavior with:
1952 (setq completion-styles '(partial-completion initials))
1953 (setq completion-pcm-complete-word-inserts-delimiters t)
1955 *** pc-mode.el is obsolete (CUA mode is much more comprehensive).
1957 *** pgg is obsolete (use EasyPG instead).
1959 *** sregex.el is obsolete, since rx.el is a strict superset.
1961 *** s-region.el and pc-select.el are obsolete.
1962 They are superseded by shift-select-mode, enabled by default since 23.1.
1964 *** vc-mcvs.el is obsolete (for lack of a maintainer).
1968 *** The Landmark game is now invoked with `landmark', not `lm'.
1969 Its functions and variables have been similarly renamed.
1971 *** In `ido-file-completion-map', C-v is no longer bound to `ido-toggle-vc'.
1972 (This interfered with cua-mode.)
1974 *** f90.el has some support for Fortran 2008 syntax.
1976 *** `copyright-fix-years' can optionally convert consecutive years to ranges.
1978 *** New command `nato-region' converts text to NATO phonetic alphabet.
1981 * New Modes and Packages in Emacs 24.1
1983 ** Occur Edit mode applies edits made in *Occur* buffers to the
1984 original buffers. It is bound to "e" in Occur mode.
1986 ** New global minor mode electric-pair-mode.
1987 When enabled, typing an open parenthesis automatically inserts the
1988 matching closing one.
1990 ** New global minor mode electric-indent-mode.
1991 When enabled, typing certain characters triggers reindentation.
1992 Major modes wishing to use this can set electric-indent-chars or
1993 electric-indent-functions.
1995 ** New global minor mode electric-layout-mode.
1996 When enabled, typing certain characters automatically inserts newlines.
1997 Major modes wishing to use this can set electric-layout-rules.
1999 ** tabulated-list.el provides a generic major mode for tabulated data,
2000 from which other modes can be derived.
2002 ** pcase.el provides the ML-style pattern matching macro `pcase'.
2004 ** secrets.el is an implementation of the Secret Service API, an
2005 interface to password managers like GNOME Keyring or KDE Wallet. The
2006 Secret Service API requires D-Bus for communication. The command
2007 `secrets-show-secrets' offers a buffer with a visualization of the
2010 ** notifications.el provides an implementation of the Desktop
2011 Notifications API. It requires D-Bus for communication.
2013 ** soap-client.el supports access to SOAP web services from Emacs.
2014 soap-inspect.el is an interactive inspector for SOAP WSDL structures.
2016 ** New generic mode, xmodmap-generic-mode, for xmodmap files.
2018 ** New emacs-lock.el package.
2019 The previous version has been moved to obsolete/old-emacs-lock.el.
2020 Now, there is a proper minor mode `emacs-lock-mode'. Protection
2021 against exiting Emacs and killing the buffer can be set separately.
2022 The mechanism for automatically turning off protection for buffers
2023 with dead inferior processes has been generalized.
2026 * Incompatible Lisp Changes in Emacs 24.1
2028 ** Passing a nil argument to a minor mode function call now ENABLES
2029 the minor mode unconditionally. This is so that you can write e.g.
2031 (add-hook 'text-mode-hook 'foo-mode)
2033 to enable foo-mode in Text mode buffers, removing the need for
2034 `turn-on-foo-mode' style functions. This affects all mode commands
2035 defined by `define-minor-mode'. If called interactively, the mode
2036 command still toggles the minor mode.
2038 ** The return value of `backup-buffer' has changed.
2039 It is now a list of three elements, where the second element is a list
2040 describing the original file's SELinux context. If Emacs or the
2041 system lacks SELinux support, the context list is (nil nil nil nil).
2042 See "Basic SELinux support" above, under "Changes in Emacs 24.1".
2044 ** `char-direction-table' and the `char-direction' function were deleted.
2045 They were buggy and inferior to the new support of bidirectional
2046 editing introduced in Emacs 24. If you need the bidirectional
2047 properties of a character, use `get-char-code-property' with the last
2048 argument `bidi-class'.
2050 ** `copy-directory' now copies the source directory as a subdirectory
2051 of the target directory, if the latter is an existing directory. The
2052 new optional arg COPY-CONTENTS, if non-nil, makes the function copy
2053 the contents directly into a pre-existing target directory.
2055 ** For mouse click input events in the text area, the Y pixel
2056 coordinate in the POSITION list now counts from the top of the text
2057 area, excluding any header line. Previously, it counted from the top
2060 ** Support for "old-style" backquotes, obsolete for 10+ years, has
2061 been further reduced. Now a backquote not followed by a space is
2062 always treated as a "new-style" backquote. Please remove all
2063 "old-style" backquotes from your code. If your code uses backquotes
2064 as documented in the Elisp manual, and compiles without warning, then
2065 you have nothing to do in this regard. Code not following the
2066 appropriate conventions may fail to compile.
2068 The most common cause of trouble seems to be an old-style backquote
2069 followed by a newline. Another cause of trouble is vector notation
2070 for key sequence notation: instead of [(control ,)] and [(control ')],
2071 you should write [(control ?,)] and [(control ?')], which will work in
2074 ** The macro `eval-at-startup' was removed in Emacs 23.2, but this
2075 was not advertised at the time. The function `custom-initialize-delay'
2076 replaced all known uses.
2078 ** `view-buffer' now treats special mode-class in the same way that
2079 `view-file' has since Emacs 22 (i.e. it won't enable View mode if the
2080 major mode is special).
2082 ** Menu and tool bar changes
2084 *** During startup, Emacs no longer adds entries for `menu-bar-lines'
2085 and `tool-bar-lines' to `default-frame-alist' and `initial-frame-alist'.
2086 With these alist entries omitted, `make-frame' checks the value of the
2087 variable `menu-bar-mode'/`tool-bar-mode' to determine whether to create
2088 a menu-bar or tool-bar, respectively. If the alist entries are added,
2089 they override the value of `menu-bar-mode'/`tool-bar-mode'.
2091 *** The menu bar bindings's caches are not used any more.
2092 Use (where-is-internal <def> nil t) instead.
2094 ** Regions created by mouse dragging are now normal active regions,
2095 similar to those created by shift-selection (see Selection changes
2096 above). In previous Emacs versions, these regions were delineated by
2097 `mouse-drag-overlay'; that variable has been removed.
2099 ** The fourth argument of `filter-buffer-substring' has been removed.
2100 If you want to remove text properties from the final result, simply
2101 pass the result through substring-no-properties.
2103 ** cl.el no longer provides `cl-19'.
2105 ** The following obsolete functions and aliases have been removed
2106 (the appropriate new function is given in parentheses; "not needed"
2107 means you can just remove all calls to the function in question):
2109 *** `comint-kill-output' (`comint-delete-output')
2110 *** `decompose-composite-char' (`char-to-string')
2111 *** `outline-visible' (`outline-invisible-p')
2112 *** `internal-find-face' (`facep')
2113 *** `internal-get-face' (`facep and check-face')
2114 *** `frame-update-faces' (not needed)
2115 *** `frame-update-face-colors' (`frame-set-background-mode')
2116 *** `x-frob-font-weight' and `x-frob-font-slant' (`make-face-*' functions)
2117 *** `x-make-font-bold and x-make-font-demibold (`make-face-bold')
2118 *** `x-make-font-italic' and `x-make-font-oblique' (`make-face-italic')
2119 *** `x-make-font-bold-italic' (`make-face-bold-italic')
2120 *** `x-make-font-unbold' (`make-face-unbold')
2121 *** `x-make-font-unitalic' (`make-face-unitalic')
2122 *** `mldrag-drag-mode-line' (`mouse-drag-mode-line')
2123 *** `mldrag-drag-vertical-line' (`mouse-drag-vertical-line')
2124 *** `iswitchb-default-keybindings' (`iswitchb-mode')
2125 *** `char-bytes' (== 1)
2126 *** `isearch-return-char' (`isearch-printing-char')
2127 *** `make-local-hook' (not needed)
2128 *** `set-screen-height' (`set-frame-height')
2129 *** `set-screen-width' (`set-frame-width')
2131 ** The following obsolete variables and varaliases have been removed
2132 (the appropriate new variable is given in parentheses):
2134 *** `checkdoc-minor-keymap' (`checkdoc-minor-mode-map')
2135 *** `vc-header-alist' (`vc-BACKEND-header')
2136 *** `directory-sep-char' (== ?/)
2137 *** `font-lock-defaults-alist' (`font-lock-defaults')
2138 *** `e' (`float-e').
2140 ** The following obsolete files were removed:
2141 sc.el, x-menu.el, rnews.el, rnewspost.el
2143 ** The format of the finder-inf.el file has changed, since the Finder
2144 mechanism is now based on the package system. The variable
2145 `finder-package-info' is replaced by `package--builtins' and
2146 `finder-keywords-hash'.
2148 ** When generating autoloads, `update-directory-autoloads' no longer
2149 assumes every inspected file is in your `load-path'. It instead
2150 generates relative names according to the current `load-path'.
2153 * Lisp changes in Emacs 24.1
2155 ** Code can now use lexical scoping by default instead of dynamic scoping.
2156 The `lexical-binding' variable enables lexical scoping for local
2157 variables. It is typically set via a file-local variable in the first
2158 line of the file, in which case it applies to all the code in that
2161 *** `eval' takes a new optional argument `lexical' to choose the new lexical
2162 binding instead of the old dynamic binding mode.
2164 *** Lexically scoped interpreted functions are represented with a new form
2165 of function value which looks like (closure ENV ARGS &rest BODY).
2167 *** New macro `letrec' to define recursive local functions.
2169 *** `defvar' and `defconst' now mark the variable as special (dynamic).
2170 So do `defcustom' and other forms that call `defvar' as a subroutine.
2172 *** New function `special-variable-p' to check whether a variable is
2173 declared as dynamically bound.
2175 *** The form ((lambda ...) ...) is deprecated.
2177 ** An Emacs Lisp testing tool is now included.
2178 Emacs Lisp developers can use this tool to write automated tests for
2179 their code. See the ERT info manual for details.
2181 ** Changes for bidirectional display and editing
2183 *** New function `current-bidi-paragraph-direction'.
2184 This returns the base direction of the paragraph at point.
2186 *** New function `bidi-string-mark-left-to-right'.
2187 Given a string containing characters from right-to-left scripts, this
2188 function returns another string which can be safely inserted into a
2189 buffer, such that any following text will be always displayed to the
2190 right of that string. (This works by appending an invisible Unicode
2191 "LEFT-TO-RIGHT MARK" character if the argument string might need it.)
2193 This is useful when the buffer has overall left-to-right paragraph
2194 direction and you need to insert a string whose contents are not known
2195 in advance, without disrupting the layout of the line.
2199 *** Window tree functions are accessible in Elisp.
2200 Functions are provided to return the parent, siblings or child windows
2201 of any window including internal windows (windows not associated with a
2202 buffer) in the window tree.
2204 **** New function `window-valid-p' gives non-nil for live and internal
2207 **** Window manipulation can deal with internal windows.
2208 Many window handling functions like `split-window', `delete-window', or
2209 `delete-other-windows' as well as the window resizing functions can now
2210 act on any window including internal ones.
2212 *** window-total-height/-width vs window-body-height/-width.
2213 The function `window-height' has been renamed to `window-total-height'
2214 and `window-width' has been renamed to `window-body-width'. The old
2215 names are provided as aliases. Two new functions `window-total-width'
2216 and `window-body-height' are provided.
2218 *** Window parameters specific to window handling functions.
2219 For each window you can specify a parameter to override the default
2220 behavior of a number of functions like `split-window', `delete-window'
2221 and `delete-other-windows'. The variable `ignore-window-parameters'
2222 allows to ignore processing such parameters.
2224 *** New semantics of third argument of `split-window'.
2225 The third argument of `split-window' has been renamed to SIDE and can be
2226 set to any of the values 'below, 'right, 'above, or 'left to make the
2227 new window appear on the corresponding side of the window that shall be
2228 split. Any other value of SIDE will cause `split-window' to split the
2229 window into two side-by-side windows as before.
2231 *** Window resizing functions.
2232 A new standard function for resizing windows called `window-resize' has
2233 been introduced. This and all other functions for resizing windows no
2234 longer delete any windows when they become too small.
2236 *** Deleting the selected window now selects the most recently selected
2237 live window on that frame instead.
2239 *** `adjust-window-trailing-edge' adjustments.
2240 `adjust-window-trailing-edge' can now deal with fixed-size windows and
2241 is able to resize other windows if a window adjacent to the trailing
2242 edge cannot be shrunk any more. This makes its behavior more similar to
2243 that of Emacs 21 without compromising, however, its inability to delete
2244 windows which was introduced in Emacs 22.
2246 *** Window-local buffer lists.
2247 Windows now have local buffer lists. This means that removing a buffer
2248 from display in a window will preferably show the buffer previously
2249 shown in that window with its previous window-start and window-point
2250 positions. This also means that the same buffer may be automatically
2251 shown twice even if it already appears in another window.
2253 *** `switch-to-buffer' has a new optional argument FORCE-SAME-WINDOW,
2254 which if non-nil requires the buffer to be displayed in the currently
2255 selected window, signaling an error otherwise. If nil, another window
2256 can be used, e.g. if the selected one is strongly dedicated.
2258 *** `split-window-vertically' and `split-window-horizontally' renamed
2259 to `split-window-below' and `split-window-right' respectively.
2260 The old names are kept as aliases.
2264 **** The second arg to `display-buffer' and `pop-to-buffer' is now
2265 named ACTION, and takes a display action of the same form as
2266 `display-buffer-base-action' (see Changes, above). A non-nil,
2267 non-list value is treated specially, as the old meaning.
2269 **** New variable `display-buffer-overriding-action'.
2271 **** The procedure of `display-buffer' etc. to choose a window is
2272 determined by combining `display-buffer-overriding-action',
2273 `display-buffer-alist', the ACTION arg, `display-buffer-base-action',
2274 and `display-buffer-fallback-action'. The second and fourth of these
2275 are user-customizable variables.
2277 See the docstring of `display-buffer' for details.
2279 *** New functions `window-state-get' and `window-state-put'.
2280 These functions allow to save and restore the state of an arbitrary
2281 frame or window as an Elisp object.
2285 *** New variable `completion-extra-properties' used to specify extra
2286 properties of the current completion:
2287 - :annotate-function, same as the old completion-annotate-function.
2288 - :exit-function, function to call after completion took place.
2290 *** Functions on `completion-at-point-functions' can return any of the
2291 properties valid for `completion-extra-properties'.
2293 *** `completion-annotate-function' is obsolete.
2295 *** New `metadata' method for completion tables. The metadata thus returned
2296 can specify various details of the data returned by `all-completions':
2297 - `category' is the kind of objects returned (e.g., `buffer', `file', ...),
2298 used to select a style in completion-category-overrides.
2299 - `annotation-function' to add annotations in *Completions*.
2300 - `display-sort-function' to specify how to sort entries in *Completions*.
2301 - `cycle-sort-function' to specify how to sort entries when cycling.
2303 *** `minibuffer-local-filename-must-match-map' is not used any more.
2304 Instead, the bindings in `minibuffer-local-filename-completion-map'
2305 are combined with `minibuffer-local-must-match-map'.
2307 *** New variable `completing-read-function' allows overriding the
2308 behavior of `completing-read'.
2310 ** `glyphless-char-display' can now distinguish between graphical and
2311 text terminal display, via a char-table entry that is a cons cell.
2313 ** `pre-command-hook'/`post-command-hook' are not reset to nil on error.
2314 Instead, the offending function is removed.
2318 *** New function `run-hook-wrapped' for running an abnormal hook by
2319 passing the hook functions as arguments to a "wrapping" function.
2320 Like `run-hook-with-args-until-success', it stops at the first
2321 non-nil return value.
2323 *** New macro `with-wrapper-hook' for running an abnormal hook as a
2324 set of "wrapping" filters, similar to around advice.
2325 (A version of this macro was actually added in Emacs 23.2 but was not
2326 advertised at the time.)
2330 *** New macro `condition-case-unless-debug' (this was actually added in
2331 Emacs 23.1 as condition-case-no-debug, but not advertised)
2333 *** The macro `with-demoted-errors' was added in Emacs 23.1, but not advertised.
2335 *** Variable `stack-trace-on-error' removed.
2337 *** The debugger can now "continue" from an error, which means it will
2338 jump to the error handler as if the debugger had not been invoked
2339 instead of jumping all the way to the top-level.
2341 *** Set `debug-on-event' to enter the debugger on events like SIGUSR1.
2342 This can be useful when `inhibit-quit' is set.
2344 ** The new function `server-eval-at' allows evaluation of Lisp forms on
2345 named Emacs server instances.
2347 ** `call-process' and `call-process-region' allow a `(:file "file")' spec
2348 to redirect STDOUT to a file.
2350 ** The function `format-time-string' now supports the %N directive,
2351 for higher-resolution time stamps.
2353 ** New input reading functions
2355 *** New function `read-char-choice' reads a restricted set of
2356 characters, discarding any inputs not inside the set.
2358 *** The command `read-color' now requires a match for a color name
2359 or RGB triplet, instead of signaling an error if the user provides
2362 **** `facemenu-read-color' is now an alias for `read-color'.
2364 ** `image-library-alist' is renamed to `dynamic-library-alist'.
2365 The variable is now used to load all kind of supported dynamic libraries,
2366 not just image libraries. The previous name is still available as an
2369 ** Syntax parsing changes
2371 *** New variable `syntax-propertize-function'.
2372 This replaces `font-lock-syntactic-keywords' which is now obsolete.
2373 This allows syntax-table properties to be set independently from font-lock:
2374 just call syntax-propertize to make sure the text is propertized.
2375 Together with this new variable come a new hook
2376 syntax-propertize-extend-region-functions, as well as two helper functions:
2377 syntax-propertize-via-font-lock to reuse old font-lock-syntactic-keywords
2378 as-is; and syntax-propertize-rules which provides a new way to specify
2381 *** Syntax tables support a new "comment style c" additionally to style b.
2383 ** New hook `post-self-insert-hook', run after `self-insert-command'.
2385 ** frame-local variables cannot be let-bound any more.
2387 ** Major and minor mode changes
2389 *** `set-auto-mode' now respects mode: local variables at the end of files,
2390 as well as those in the -*- line.
2392 *** `prog-mode' is a new major mode from which programming modes
2395 **** `prog-mode-hook' can be used to enable features for programming
2396 modes, e.g. (add-hook 'prog-mode-hook 'flyspell-prog-mode) to enable
2397 on-the-fly spell checking for comments and strings.
2399 *** New hook `change-major-mode-after-body-hook', run by
2400 `run-mode-hooks' just before any other mode hooks.
2402 *** Enabled globalized minor modes can be disabled in specific major modes.
2403 If the global mode is global-FOO-mode, then run (FOO-mode -1) in the
2404 major mode's hook, where FOO-mode toggles the mode on a per-buffer basis.
2406 *** `define-minor-mode' accepts new keywords :variable, :after-hook.
2408 ** File-handling changes
2410 *** `delete-file' and `delete-directory' now accept optional arg TRASH.
2411 Trashing is performed if TRASH and `delete-by-moving-to-trash' are
2412 both non-nil. Interactively, TRASH defaults to t, unless a prefix
2413 argument is supplied (see Trash changes, above).
2415 *** New file predicates: `file-equal-p', `file-in-directory-p'.
2417 ** Tool-bars can display separators.
2418 Tool-bar separators are handled like menu separators in menu-bar maps,
2419 i.e. via menu entries of the form `(menu-item "--")'.
2423 *** Animated images support (currently animated gifs only).
2425 **** `image-animated-p' returns non-nil if an image can be animated.
2427 **** `image-animate' animates a supplied image spec.
2429 **** `image-animate-timer' returns the timer object for an image that
2432 *** `image-extension-data' has been renamed to `image-metadata'.
2433 The old name is an obsolete alias to the new one.
2435 *** Image mode can view any image type that ImageMagick supports.
2436 This requires Emacs to be built with ImageMagick support.
2438 **** New function `imagemagick-types', defined if ImageMagick support
2439 is enabled, returns a list of image file extensions that your
2440 ImageMagick installation supports.
2442 **** New function `imagemagick-register-types' enables ImageMagick
2443 image types in Image mode and in `create-image' and other helper
2446 **** New option `imagemagick-types-inhibit' excludes certain
2447 ImageMagick image types from `imagemagick-register-types'.
2449 **** With ImageMagick support, there are extra Image mode commands to
2450 resize and rotate images: `image-transform-fit-to-height',
2451 `image-transform-fit-to-width', `image-transform-set-rotation', and
2452 `image-transform-set-scale'.
2454 ** `compose-mail' now accepts an optional 8th arg, RETURN-ACTION, and
2455 passes it to the mail user agent function. This argument specifies an
2456 action for returning to the caller after finishing with the mail. For
2457 example, this is used by Rmail to optionally delete a mail window.
2459 ** XML and HTML parsing
2460 If Emacs is compiled with libxml2 support, there are two new
2461 functions: `libxml-parse-html-region' (which parses "real world" HTML)
2462 and `libxml-parse-xml-region' (which parses XML). Both return an
2463 Emacs Lisp parse tree.
2465 ** Networking and encryption changes
2467 *** `open-network-stream' can now be used to open an encrypted stream.
2468 It now accepts an optional `:type' parameter for initiating a TLS
2469 connection, directly or via STARTTLS. To do STARTTLS, additional
2470 parameters (`:end-of-command', `:success', `:capabilities-command')
2471 must also be supplied.
2473 *** New library gnutls.el.
2474 The new function `gnutls-available-p' returns non-nil if Emacs is
2475 built with GnuTLS support. The main entry points are
2476 `open-gnutls-stream' and `gnutls-negotiate'. It's easiest to use
2477 these functions through `open-network-stream', because that can
2478 upgrade connections through STARTTLS opportunistically or use plain
2479 SSL, depending on your needs. For debugging, set `gnutls-log-level'
2482 *** New primitive `secure-hash' that supports many secure hash algorithms:
2483 md5, sha1, sha2, sha224, sha256, sha384, and sha512. The lisp library
2484 sha1.el has been removed. The `sha1' feature is provided by default.
2488 *** New hook `isearch-update-post-hook' that runs in `isearch-update'.
2490 ** Progress reporters can now "spin".
2491 The MIN-VALUE and MAX-VALUE arguments of `make-progress-reporter' can
2492 now be nil, or omitted. This makes a "non-numeric" reporter. Each
2493 time you call `progress-reporter-update' on that progress reporter,
2494 with a nil or omitted VALUE argument, the reporter message is
2495 displayed with a "spinning bar".
2497 ** New variable `revert-buffer-in-progress-p' is true while a buffer is
2498 being reverted, even if the buffer has a local `revert-buffer-function'.
2500 ** New variables `delayed-warnings-list' and `delayed-warnings-hook'.
2501 If delayed-warnings-list is non-nil, the command loop calls
2502 `delayed-warnings-hook' after `post-command-hook'. At present, this
2503 is only used by Emacs on some platforms to display warnings during
2504 startup, which might otherwise not be noticed. This uses the
2505 functions `display-delayed-warnings' and `collapse-delayed-warnings'.
2507 ** rx.el has a new `group-n' construct for explicitly numbered groups.
2509 ** New function `make-composed-keymap' that constructs a new keymap
2510 from multiple input maps. You can use this to make a keymap that
2511 inherits from multiple maps, eg:
2512 (set-keymap-parent newmap (make-composed-keymap othermap parent))
2514 ** New function `string-prefix-p'.
2515 (This was actually added in Emacs 23.2 but was not advertised at the time.)
2517 ** New reader macro ## that stands for the empty symbol.
2518 This means that the empty symbol can now be read back. Also, #: by itself
2519 (when not immediately followed by a possible symbol character) stands for
2520 an empty uninterned symbol.
2522 ** New math functions `isnan', `copysign', `frexp', `ldexp'.
2524 ** The following functions and variables are obsolete:
2526 *** `tooltip-use-echo-area' is obsolete.
2527 Rather than setting this to t, disable Tooltip mode instead.
2529 *** buffer-substring-filters is obsolete.
2530 Use `filter-buffer-substring-functions' instead.
2532 *** `byte-compile-disable-print-circle' is obsolete.
2534 *** `deferred-action-list' and `deferred-action-function' are obsolete.
2535 Use `post-command-hook' instead.
2537 *** `font-lock-maximum-size' is obsolete.
2540 * Changes in Emacs 24.1 on non-free operating systems
2542 ** On MS Windows, Emacs warns when using the obsolete init file _emacs,
2543 and also when HOME is set to C:\ by default.
2545 ** New configure.bat options
2547 *** --enable-checking builds Emacs with extra runtime checks.
2549 *** --distfiles specifies files to be included in binary distribution.
2551 *** --without-gnutls disables automatic GnuTLS detection.
2553 *** --lib for general library linkage, works with the USER_LIBS build variable.
2555 ** New make target `dist' to create binary distribution for MS Windows.
2557 ** The Lisp function `w32-default-color-map' is now obsolete.
2558 (It is only used internally in the Emacs C code.)
2560 ** Customize ns-auto-hide-menu-bar to have the menu-bar hidden, but
2561 reappear on mouse-over. (Requires OS X 10.6 or later.)
2563 ** On Mac OS X, dragging a file into Emacs visits the file, like on
2564 other platforms, rather than inserting its contents into the buffer.
2567 ----------------------------------------------------------------------
2568 This file is part of GNU Emacs.
2570 GNU Emacs is free software: you can redistribute it and/or modify
2571 it under the terms of the GNU General Public License as published by
2572 the Free Software Foundation, either version 3 of the License, or
2573 (at your option) any later version.
2575 GNU Emacs is distributed in the hope that it will be useful,
2576 but WITHOUT ANY WARRANTY; without even the implied warranty of
2577 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
2578 GNU General Public License for more details.
2580 You should have received a copy of the GNU General Public License
2581 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
2586 paragraph-separate: "[
\f]*$"