(c-guess-basic-syntax): Move CASE 19 to a different place, correctly to
[bpt/emacs.git] / etc / NEWS
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29b7722a 1GNU Emacs NEWS -- history of user-visible changes.
5b87ad55 2
73b0cd50 3Copyright (C) 2010-2011 Free Software Foundation, Inc.
5b87ad55 4See the end of the file for license conditions.
a933dad1 5
893db5bc 6Please send Emacs bug reports to bug-gnu-emacs@gnu.org.
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7If possible, use M-x report-emacs-bug.
8
eb199145 9This file is about changes in Emacs version 24.
9a21d88b 10
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11See files NEWS.23, NEWS.22, NEWS.21, NEWS.20, NEWS.19, NEWS.18,
12and NEWS.1-17 for changes in older Emacs versions.
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13
14You can narrow news to a specific version by calling `view-emacs-news'
15with a prefix argument or by typing C-u C-h C-n.
3f7194ed 16
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17
18Temporary note:
19 +++ indicates that the appropriate manual has already been updated.
20 --- means no change in the manuals is called for.
21When you add a new item, please add it without either +++ or ---
22so we will look at it and add it to the manual.
23
24\f
eb199145 25* Installation Changes in Emacs 24.1
09e18d03 26
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27** Configure links against libselinux if it is found.
28You can disable this by using --without-selinux.
29
30---
31** By default, the installed Info and man pages are compressed.
32You can disable this by configuring --without-compress-info.
33
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34---
35** There are new configure options:
36--with-mmdf, --with-mail-unlink, --with-mailhost.
37These provide no new functionality, they just remove the need to edit
38lib-src/Makefile by hand in order to use the associated features.
39
e547b051 40---
30c4d8dc 41** Emacs can be compiled against Gtk+ 3.0 if you pass --with-x-toolkit=gtk3
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42to configure. Note that other libraries used by Emacs, RSVG and GConf,
43also depend on Gtk+. You can disable them with --without-rsvg and
44--without-gconf.
45
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46** There is a new configure option --enable-use-lisp-union-type.
47This is only useful for Emacs developers to debug certain types of bugs.
b2957ea8 48This is not a new feature; only the configure flag is new.
d9170db5 49
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50---
51** New translation of the Emacs Tutorial in Hebrew is available
52Type `C-u C-h t' to choose it in case your language setup doesn't
53automatically select it.
54
0bfd685e 55\f
eb199145 56* Startup Changes in Emacs 24.1
4a263588 57
198a7a97 58** The --unibyte, --multibyte, --no-multibyte, and --no-unibyte
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59command line arguments, and the EMACS_UNIBYTE environment variable, no
60longer have any effect. (They were declared obsolete in Emacs 23.)
198a7a97 61
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62** New command line option `--no-site-lisp' removes site-lisp directories
63from load-path. -Q now implies this.
64
0bfd685e 65\f
eb199145 66* Changes in Emacs 24.1
7841339b 67
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68** emacsclient changes
69
70*** New emacsclient argument --parent-id ID can be used to open a
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71client frame in parent X window ID, via XEmbed. This works like the
72--parent-id argument to Emacs.
73
15a7a774 74+++
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75*** New emacsclient argument -q/--quiet suppresses some status messages.
76
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77*** If emacsclient shuts down as a result of Emacs signalling an
78error, its exit status is 1.
79
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80** Completion can cycle, depending on completion-cycle-threshold.
81
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82** auto-mode-case-fold is now enabled by default.
83
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84+++
85** Emacs now supports display and editing of bidirectional text.
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86
87See the node "Bidirectional Editing" in the Emacs Manual for some
88initial documentation.
89
90To turn this on in any given buffer, set the buffer-local variable
91`bidi-display-reordering' to a non-nil value. The default is nil.
92
93The buffer-local variable `bidi-paragraph-direction', if non-nil,
94forces each paragraph in the buffer to have its base direction
95according to the value of this variable. Possible values are
96`right-to-left' and `left-to-right'. If the value is nil (the
97default), Emacs determines the base direction of each paragraph from
98its text, as specified by the Unicode Bidirectional Algorithm.
99
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100The function `current-bidi-paragraph-direction' returns the actual
101value of paragraph base direction at point.
102
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103Reordering of bidirectional text for display in Emacs is a "Full
104bidirectionality" class implementation of the Unicode Bidirectional
105Algorithm.
106
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107Note that some advanced display features, such as overlay strings and
108`display' text properties, do not yet work correctly when
109bidirectional text is reordered for display.
110
303500aa 111** GTK scroll-bars are now placed on the right by default.
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112Use `set-scroll-bar-mode' to change this.
113
20fe03ad 114** GTK tool bars can have just text, just images or images and text.
d8004abe 115Customize `tool-bar-style' to choose style. On a Gnome desktop, the default
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116is taken from the desktop settings.
117
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118** GTK tool bars can be placed on the left/right or top/bottom of the frame.
119The frame-parameter tool-bar-position controls this. It takes the values
1c0d77cc 120top, left, right or bottom. The Options => Show/Hide menu has entries
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121for this.
122
8740c12d 123** ImageMagick support.
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124It is now possible to use the ImageMagick library to load many new
125image formats in Emacs. By default, Emacs links with the ImageMagick
126libraries if they are present at build time. To disable this, use
8ea189f7 127the configure option `--without-imagemagick'.
16a91140 128
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129The new function `imagemagick-types' returns a list of image file
130extensions that your installation of ImageMagick supports. The
131function `imagemagick-register-types' enables ImageMagick support for
b2957ea8 132these image types, minus those listed in `imagemagick-types-inhibit'.
16a91140 133
8740c12d 134See the Emacs Lisp Reference Manual for more information.
16a91140 135
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136** The colors for selected text (the region face) are taken from the GTK
137theme when Emacs is built with GTK.
138
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139** Emacs uses GTK tooltips by default if built with GTK. You can turn that
140off by customizing x-gtk-use-system-tooltips.
141
1ecb2d3f 142** Lucid menus and dialogs can display antialiased fonts if Emacs is built
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143with Xft. To change font, use the X resource font, for example:
144Emacs.pane.menubar.font: Courier-12
99852628 145
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146+++
147** Enhanced support for characters that have no glyphs in available fonts
148If a character has no glyphs in any of the available fonts, Emacs by
149default will display it either as a hexadecimal code in a box or as a
150thin 1-pixel space. In addition to these two methods, Emacs can
151display these characters as empty box, as an acronym, or not display
152them at all. To change how these characters are displayed, customize
153the variable `glyphless-char-display-control'.
154
155On character terminals these methods are used for characters that
156cannot be encoded by the `terminal-coding-system'.
157
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158** On graphical displays, the mode-line no longer ends in dashes.
159
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160** Basic SELinux support has been added.
161This requires Emacs to be linked with libselinux at build time.
162
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163*** Emacs preserves the SELinux file context when backing up, and
164optionally when copying files. To this end, copy-file has an extra
165optional argument, and backup-buffer and friends include the SELinux
166context in their return values.
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167
168*** The new functions file-selinux-context and set-file-selinux-context
169get and set the SELinux context of a file.
170
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171*** Tramp offers handlers for file-selinux-context and set-file-selinux-context
172for remote machines which support SELinux.
173
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174+++
175** The function format-time-string now supports the %N directive, for
176higher-resolution time stamps.
177
9c524fcb 178** The function kill-emacs is now run upon receipt of the signals SIGTERM
383ebd15 179and SIGHUP, and upon SIGINT in batch mode.
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180
181** kill-emacs-hook is now also run in batch mode.
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182If you have code that adds something to kill-emacs-hook, you should
183consider if it is still appropriate to add it in the noninteractive case.
9c524fcb 184
79ce172a 185** New scrolling commands `scroll-up-command' and `scroll-down-command'
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186(bound to C-v/[next] and M-v/[prior]) does not signal errors at top/bottom
187of buffer at first key-press (instead moves to top/bottom of buffer)
188when a new variable `scroll-error-top-bottom' is non-nil.
79ce172a 189
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190** New scrolling commands `scroll-up-line' and `scroll-down-line'
191scroll a line instead of full screen.
192
a4b000fb 193** New property `scroll-command' should be set on a command's symbol to
b2957ea8 194define it as a scroll command affected by `scroll-preserve-screen-position'.
9013a7f8 195
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196** Trash changes
197
198*** `delete-by-moving-to-trash' now only affects commands that specify
199trashing. This avoids inadvertently trashing temporary files.
200
201*** Calling `delete-file' or `delete-directory' with a prefix argument
202now forces true deletion, regardless of `delete-by-moving-to-trash'.
203
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204** New option `list-colors-sort' defines the color sort order
205for `list-colors-display'.
206
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207** An Emacs Lisp package manager is now included.
208This is a convenient way to download and install additional packages,
42d9cffa 209from a package repository at elpa.gnu.org.
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210
211*** `M-x list-packages' shows a list of packages, which can be
212selected for installation.
213
214*** New command `describe-package', bound to `C-h P'.
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215
216*** By default, all installed packages are loaded and activated
217automatically when Emacs starts up. To disable this, set
218`package-enable-at-startup' to nil. To change which packages are
219loaded, customize `package-load-list'.
220
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221** An Emacs Lisp testing tool is now included.
222Emacs Lisp developers can use this tool to write automated tests for
223their code. See the ERT info manual for details.
224
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225** Custom Themes
226
227*** `M-x customize-themes' lists Custom themes which can be enabled.
228
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229*** New option `custom-theme-load-path' is the load path for themes.
230Emacs no longer looks for custom themes in `load-path'. The default
231is to search in `custom-theme-directory', followed by a built-in theme
232directory named "themes/" in `data-directory'.
233
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234*** New option `custom-safe-themes' records known-safe theme files.
235If a theme is not in this list, Emacs queries before loading it, and
236offers to save the theme to `custom-safe-themes' automatically. By
237default, all themes included in Emacs are treated as safe.
278f6845 238
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239** The user option `remote-file-name-inhibit-cache' controls whether
240the remote file-name cache is used for read access.
241
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242** The standalone programs lib-src/digest-doc and sorted-doc have been
243replaced with Lisp commands `doc-file-to-man' and `doc-file-to-info'.
244
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245** The variable `focus-follows-mouse' now always defaults to nil.
246
0bfd685e 247\f
eb199145 248* Editing Changes in Emacs 24.1
b350bdf2 249
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250+++
251** There is a new command `count-words-region', which does what you expect.
252
67027b49 253** completion-at-point now handles tags and semantic completion.
a982c7ec 254
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255** The default value of `backup-by-copying-when-mismatch' is now t.
256
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257** The command `just-one-space' (C-SPC), if given a negative argument,
258also deletes newlines around point.
259
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260** Deletion changes
261
262*** New option `delete-active-region'.
263If non-nil, C-d, [delete], and DEL delete the region if it is active
264and no prefix argument is given. If set to `kill', these commands
265kill instead.
266
267*** New command `delete-forward-char', bound to C-d and [delete].
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268This is meant for interactive use, and obeys `delete-active-region'.
269The command `delete-char' does not obey `delete-active-region'.
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270
271*** `delete-backward-char' is now a Lisp function.
272Apart from obeying `delete-active-region', its behavior is unchanged.
273However, the byte compiler now warns if it is called from Lisp; you
274should use delete-char with a negative argument instead.
275
276*** The option `mouse-region-delete-keys' has been deleted.
277
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278** Selection changes.
279
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280The default handling of clipboard and primary selections was changed
281to conform with modern X applications. In short, most commands for
282killing and yanking text now use the clipboard, while mouse commands
283use the primary selection.
284
285In the following, we provide a list of these changes, followed by a
286list of steps to get the old behavior back if you prefer that.
287
288*** `mouse-drag-copy-region' now defaults to nil.
289*** `select-active-regions' now defaults to t.
290Merely selecting text (e.g. with drag-mouse-1) no longer puts it in
291the kill-ring. The selected text is put in the primary selection, if
292the system possesses a separate primary selection facility (e.g. X).
293
294**** `select-active-regions' also accepts a new value, `only'.
295This means to only set the primary selection for temporarily active
296regions (usually made by mouse-dragging or shift-selection);
297"ordinary" active regions, such as those made with C-SPC followed by
298point motion, do not alter the primary selection.
299
300*** mouse-2 is now bound to `mouse-yank-primary'.
301This pastes from the primary selection, ignoring the kill-ring.
302Previously, mouse-2 was bound to `mouse-yank-at-click'.
303
304*** `x-select-enable-clipboard' now defaults to t on all platforms.
305*** `x-select-enable-primary' now defaults to nil.
306Thus, commands that kill text or copy it to the kill-ring (such as
307M-w, C-w, and C-k) also use the clipboard---not the primary selection.
308
309**** The "Copy", "Cut", and "Paste" items in the "Edit" menu are now
310exactly equivalent to, respectively M-w, C-w, and C-y.
311
312**** Note that on MS-Windows, `x-select-enable-clipboard' was already
313non-nil by default, as Windows does not support the primary selection
314between applications.
315
316*** To return to the previous behavior, do the following:
317
318**** Change `mouse-drag-copy-region' to t.
319**** Change `x-select-enable-primary' to t (on X only).
320**** Change `x-select-enable-clipboard' to nil.
321**** Bind `mouse-yank-at-click' to mouse-2.
f9d71b42 322
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323*** Support for X cut buffers has been removed.
324
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325** New command `rectangle-number-lines', bound to `C-x r N', numbers
326the lines in the current rectangle. With an prefix argument, this
327prompts for a number to count from and for a format string.
328
9bae34bf 329\f
eb199145 330* Changes in Specialized Modes and Packages in Emacs 24.1
efeb796b 331
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332** The compile.el mode can be used without font-lock-mode.
333`compilation-parse-errors-function' is now obsolete.
334
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335** The Landmark game is now invoked with `landmark', not `lm'.
336
04380ff1 337** Prolog mode has been completely revamped, with lots of additional
86485587 338functionality such as more intelligent indentation, electricity, support for
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339more variants, including Mercury, and a lot more.
340
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341** shell-mode can track your cwd by reading it from your prompt.
342Just set shell-dir-cookie-re to an appropriate regexp.
343
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344** Modula-2 mode provides auto-indentation.
345
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346** latex-electric-env-pair-mode keeps \begin..\end matched on the fly.
347
360ac530 348** FIXME: xdg-open for browse-url and reportbug, 2010/08.
0ac3effe 349
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350** Archive Mode has basic support to browse 7z archives.
351
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352** browse-url has gotten a new variable that is used for mailto: URLs,
353 `browse-url-mailto-function', which defaults to `browse-url-mail'.
354
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355** Directory local variables can apply to file-less buffers, in certain modes
356(eg dired, vc-dir, log-edit). For example, adding
357"(diff-mode . ((mode . whitespace)))" to your .dir-locals.el file,
358will turn on `whitespace-mode' for *vc-diff* buffers. Modes should
359call `hack-dir-local-variables-non-file-buffer' to support this.
360
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361+++
362** You can prevent directory local variables from applying to subdirectories.
363Add an element (subdirs . nil) to the alist portion of any variables
364settings to indicate said section should not be applied to subdirectories.
365
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366** ERC changes
367
368*** New vars `erc-autojoin-timing' and `erc-autojoin-delay'.
369If the value of `erc-autojoin-timing' is 'ident, ERC autojoins after a
370successful NickServ identification, or after `erc-autojoin-delay'
371seconds. The default value, 'ident, means to autojoin immediately
372after connecting.
373
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374*** New variable `erc-coding-system-precedence': If we use `undecided'
375as the server coding system, this variable will then be consulted.
376The default is to decode strings that can be decoded as utf-8 as
377utf-8, and do the normal `undecided' decoding for the rest.
378
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379** Eshell changes
380
381*** The default value of eshell-directory-name is a directory named
382"eshell" in `user-emacs-directory'. If the old "~/.eshell/" directory
383exists, that is used instead.
384
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385** In ido-mode, C-v is no longer bound to ido-toggle-vc.
386The reason is that this interferes with cua-mode.
387
c1e25821 388** partial-completion-mode is now obsolete.
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389You can get a comparable behavior with:
390(setq completion-styles '(partial-completion initials))
391(setq completion-pcm-complete-word-inserts-delimiters t)
c1e25821 392
18c812bd 393** mpc.el: Can use pseudo tags of the form tag1|tag2 as a union of two tags.
b2957ea8 394
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395** server can listen on a specific port using the server-port option.
396
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397** Calendar, Diary, and Appt
398
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399*** New function `diary-hebrew-birthday'.
400
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401---
402*** The obsolete (since Emacs 22.1) method of enabling the appt package
403by adding appt-make-list to diary-hook has been removed. Use appt-activate.
404
405---
406*** Some appt variables (obsolete since Emacs 22.1) have been removed:
407appt-issue-message (use the function appt-activate)
408appt-visible/appt-msg-window (use the variable appt-display-format)
409
410---
411*** Some diary function aliases (obsolete since Emacs 22.1) have been removed:
412view-diary-entries, list-diary-entries, show-all-diary-entries
413
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414** Customize
415
416*** Customize buffers now contain a search field.
417The search is performed using `customize-apropos'.
42d9cffa 418To turn off the search field, set custom-search-field to nil.
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419
420*** Custom options now start out hidden if at their default values.
421Use the arrow to the left of the option name to toggle visibility.
422
423*** custom-buffer-sort-alphabetically now defaults to t.
424
425*** The color widget now has a "Choose" button, which allows you to
426choose a color via list-colors-display.
427
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428** Dired-x
429
430*** dired-jump and dired-jump-other-window called with a prefix argument
431read a file name from the minibuffer instead of using buffer-file-name.
432
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433+++
434*** The `dired local variables' feature provided by Dired-x is obsolete.
435The standard directory local variables feature replaces it.
8117868f 436
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437** SQL Mode enhancements.
438
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439*** `sql-dialect' is a synonym for `sql-product'.
440
74790210 441*** Added ability to login with a port on MySQL and Postgres.
7492acc9 442The custom variable `sql-port' can be specified for connection to
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443MySQL or Postgres servers. By default, the port is not listed in
444either login parameter, but will be added to the command line if set
445to a non-zero value.
7492acc9 446
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447*** Dynamic selection of product in an SQL interactive session.
448If you use `sql-product-interactive' to start an SQL interactive
449session it uses the current value of `sql-product'. Preceding the
450invocation with C-u will force it to ask for the product before
451creating the session.
452
453*** Renaming a SQL interactive buffer when it is created.
454Prefixing the SQL interactive commands (`sql-sqlite', `sql-postgres',
455`sql-mysql', etc.) with C-u will force a new interactive session to be
456started and will prompt for the new name. This will reduce the need
457for `sql-rename-buffer' is most common use cases.
458
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459*** Command continuation prompts in SQL interactive mode are suppressed.
460Multiple line commands in SQL interactive mode, generate command
461continuation prompts which needlessly confuse the output. These
462prompts are now filtered out from the output. This change impacts
463multiple line SQL statements entered with C-j between each line,
464statements yanked into the buffer and statements sent with
465`sql-send-*' functions.
466
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467*** Custom variables control prompting for login parameters.
468Each supported product has a custom variable `sql-*-login-params'
469which is a list of the parameters to be prompted for before a
470connection is established.
471
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472The lists consist of the following five tokens: `user', `password',
473`database', `server', and `port'. The order in which they appear is
474the order in which they are prompted. The tokens symbols can be
475replaced by a sublist starting with the token and followed by a plist
476which control the prompting for values. The tokens `user',
477`database', and `server' each can take a property of :default which
478specifies the value to be used if no value is entered. The
479`database', `server', and `port' tokens handle the :completion
480property which restricts the entry to either one of the values in the
481list or to one of the values returned by the function provided as the
482property value. The `database' and `server' tokens also accept the
483:file property whose value is a regexp to identify useful file names.
484
485 (user :default DEF)
486 (database :default DEF
487 :file FILEPAT
488 :completion COMPLETE)
489 (server :default DEF
490 :file FILEPAT
491 :completion COMPLETE)
492
493The FILEPAT when :file is specified is a regexp that will match valid
494file names (without the directory portion). Generally these strings
495will be of the form ".+\.SUF" where SUF is the desired file suffix.
496
497When :completion is specified, the COMPLETE corresponds to the
498PREDICATE argument to the `completing-read' function (a list of
499possible values or a function returning such a list).
5474c40f 500
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501*** Added `sql-connection-alist' to record login parameter values.
502An alist for recording different username, database and server
503values. If there are multiple databases that you connect to the
504parameters needed can be stored in this alist.
505
506For example, the following might be set in the user's init.el:
507
508 (setq sql-connection-alist
509 '((dev (sql-product 'sqlite)
510 (sql-database "/home/mmaug/dev.db"))
511 (prd (sql-product 'oracle)
512 (sql-user "mmaug")
513 (sql-database "iprd2a"))))
514
515This defines two connections named "dev" and "prd".
516
517*** Added `sql-connect' to use predefined connections.
518Sets the login parameters based on the values in the
519`sql-connection-alist' and start a SQL interactive session. Any
520values specified in the connection will not be prompted for.
521
522In the example above, if the user were to invoke M-x sql-connect, they
523would be prompted for the connection. The user can respond with
524either "dev" or "prd". The "dev" connection would connect to the
525SQLite database without prompting; the "prd" connection would prompt
526for the users password and then connect to the Oracle database.
527
d26b0ea9 528**** Added SQL->Start... submenu when connections are defined.
b2957ea8 529When connections have been defined, there is a submenu available that
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530allows the user to select one to start a SQLi session. The "Start
531SQLi Session" item moves to the "Start..." submenu when cnnections
532have been defined.
533
534**** Added "Save Connection" menu item in SQLi buffers.
535When a SQLi session is not started by a connection then
536`sql-save-connection' will gather the login params specified for the
537session and save them as a new connection.
538
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539*** List database objects and details.
540Once a SQL interactive session has been started, you can get a list of
541the objects in the database and see details of those objects. The
542objects shown and the details available are product specific.
543
544**** List all objects.
545Using `M-x sql-list-all', `C-c C-l a' or selecting "SQL->List all
546objects" will list all the objects in the database. At a minimum it
86485587 547lists the tables and views in the database. Preceding the command by
74790210
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548universal argument may provide additional details or extend the
549listing to include other schemas objects. The list will appear in a
550separate window in view-mode.
551
552**** List Table details.
553Using `M-x sql-list-table', `C-c C-l t' or selecting "SQL->List Table
554details" will ask for the name of a database table or view and display
86485587 555the list of columns in the relation. Preceding the command with the
74790210
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556universal argument may provide additional details about each column.
557The list will appear in a separate window in view-mode.
558
7492acc9
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559*** Added option `sql-send-terminator'.
560When set makes sure that each command sent with `sql-send-*' commands
561are properly terminated and submitted to the SQL processor.
562
563*** Added option `sql-oracle-scan-on'.
564When set commands sent to Oracle's SQL*Plus are scanned for strings
30c4d8dc
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565starting with an ampersand and the user is asked for replacement text.
566In general, the SQL*Plus option SCAN should always be set OFF under
567SQL interactive mode and this option used in its place.
7492acc9
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568
569*** SQL interactive mode will replace tabs with spaces.
86485587 570This prevents the command interpreter for MySQL and Postgres from
7492acc9
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571listing object name completions when being sent text via
572`sql-send-*' functions.
573
574*** An API for manipulating SQL product definitions has been added.
575
723ee192
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576** sregex.el is now obsolete, since rx.el is a strict superset.
577
6ca94a0b 578** s-region.el and pc-select are now declared obsolete,
86485587 579superseded by shift-select-mode enabled by default in 23.1.
6ca94a0b 580** pc-mode.el is also declared obsolete.
691cf4a0
NR
581** gdb-mi
582
583*** GDB User Interface migrated to GDB Machine Interface and now
584supports multithread non-stop debugging and debugging of several
585threads simultaneously.
586
37221432
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587** D-Bus
588
589*** It is possible now, to access alternative buses than the default
590system or session bus.
591
3c3d4f5b
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592*** dbus-register-{service,method,property}
593The -method and -property functions do not automatically register
594names anymore.
595
596The new function dbus-register-service registers a service known name
597on a D-Bus without simultaneously registering a property or a method.
412b9ee5 598
459bba37
MA
599** Tramp
600
a808d31f
MA
601*** There exists a new inline access method "ksu" (kerberized su).
602
459bba37 603*** The following access methods are discontinued: "ssh1_old",
ea843702 604"ssh2_old", "scp1_old", "scp2_old", "imap", "imaps" and "fish".
459bba37 605
0c32ce32
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606** VC and related modes
607
608*** Support for pulling on distributed version control systems.
659114fd 609The vc-pull command runs a "pull" operation, if it is supported.
0c32ce32 610This updates the current branch from upstream. A prefix argument
659114fd 611means to prompt the user for specifics, e.g. a pull location.
0c32ce32 612
7d93eca9 613**** `vc-update' is now an alias for `vc-pull'.
0c32ce32 614
659114fd 615**** Currently supported by Bzr, Git, and Mercurial.
0c32ce32
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616
617*** Support for merging on distributed version control systems.
618The vc-merge command now runs a "merge" operation, if it is supported.
659114fd
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619This merges another branch into the current one. This command prompts
620the user for specifics, e.g. a merge source.
0c32ce32 621
33f6cf7b 622**** Currently supported for Bzr, Git, and Mercurial.
0c32ce32 623
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624*** Log entries in some Log View buffers can be toggled to display a
625longer description by typing RET (log-view-toggle-entry-display).
626In the Log View buffers made by `C-x v L' (vc-print-root-log), you can
627use this to display the full log entry for the revision at point.
628
33f6cf7b 629**** Currently supported for Bzr, Git, and Mercurial.
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630
631**** Packages using Log View mode can enable this functionality by
632binding `log-view-expanded-log-entry-function' to a suitable function.
633
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634** Miscellaneous
635
636---
637*** `copyright-fix-years' can optionally convert consecutive years to ranges.
638
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639\f
640* New Modes and Packages in Emacs 24.1
d445b3f8 641
7100ff98
SM
642** New global minor modes electric-pair-mode, electric-indent-mode,
643and electric-layout-mode.
3b843809 644
d02c9bcd
SM
645** pcase.el provides the ML-style pattern matching macro `pcase'.
646
7725ebb7
MA
647** secrets.el is an implementation of the Secret Service API, an
648interface to password managers like GNOME Keyring or KDE Wallet. The
065f2743
MA
649Secret Service API requires D-Bus for communication. The command
650`secrets-show-secrets' offers a buffer with a visualization of the
651secrets.
7725ebb7 652
f9e78150
MA
653** notifications.el provides an implementation of the Desktop
654Notifications API. It requires D-Bus for communication.
655
12fe5bcc
MA
656** soap-client.el supports access to SOAP web services from Emacs.
657soap-inspect.el is an interactive inspector for SOAP WSDL structures.
658
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659** xmodmap-generic-mode for xmodmap files.
660
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661\f
662* Incompatible Lisp Changes in Emacs 24.1
6dfcbe31 663
470d996d
TV
664** `copy-directory' now copies the source directory as a subdirectory
665of the target directory, if the latter is an existing directory. The
666new optional arg COPY-CONTENTS, if non-nil, makes the function copy
667the contents directly into a pre-existing target directory.
668
25ca2e61
CY
669** `compose-mail' now accepts an optional 8th arg, RETURN-ACTION, and
670passes it to the mail user agent function. This argument specifies an
671action for returning to the caller after finishing with the mail.
672This is currently used by Rmail to delete a mail window.
673
9173a8fb
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674** For mouse click input events in the text area, the Y pixel
675coordinate in the POSITION list now counts from the top of the text
676area, excluding any header line. Previously, it counted from the top
677of the header line.
678
c4d17d50
SM
679** Remove obsolete name `e' (use `float-e' instead).
680
288cf4e9
SM
681** A backquote not followed by a space is now always treated as new-style.
682
fd5c9dfa 683** Test for special mode-class was moved from view-file to view-buffer.
288cf4e9
SM
684FIXME: This only says what was changed, but not what are the
685programmer-visible consequences.
fd5c9dfa 686
3b7e1d5f
SM
687** Passing a nil argument to a minor mode function now turns the mode
688 ON unconditionally.
6431f2e6
CY
689
690** During startup, Emacs no longer adds entries for `menu-bar-lines'
691and `tool-bar-lines' to `default-frame-alist' and
692`initial-frame-alist'. With these alist entries omitted, `make-frame'
693checks the value of the variable `menu-bar-mode'/`tool-bar-mode' to
694determine whether to create a menu-bar or tool-bar, respectively.
695If the alist entries are added, they override the value of
696`menu-bar-mode'/`tool-bar-mode'.
697
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698** Regions created by mouse dragging are now normal active regions,
699similar to the ones created by shift-selection. In previous Emacs
700versions, these regions were delineated by `mouse-drag-overlay', which
701has now been removed.
d6d8ee7a 702
4583e796
GM
703** cl.el no longer provides `cl-19'.
704
3226d6ca
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705** The following functions and aliases, obsolete since at least Emacs 21.1,
706have been removed:
707comint-kill-output, decompose-composite-char, outline-visible,
708internal-find-face, internal-get-face, frame-update-faces,
709frame-update-face-colors, x-frob-font-weight, x-frob-font-slant,
710x-make-font-bold, x-make-font-demibold, x-make-font-unbold
711x-make-font-italic, x-make-font-oblique, x-make-font-unitalic
712x-make-font-bold-italic, mldrag-drag-mode-line, mldrag-drag-vertical-line,
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713iswitchb-default-keybindings, char-bytes, isearch-return-char,
714make-local-hook
3226d6ca
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715
716** The following variables and aliases, obsolete since at least Emacs 21.1,
717have been removed:
6aecca99
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718checkdoc-minor-keymap, vc-header-alist, directory-sep-char,
719font-lock-defaults-alist
3226d6ca 720
7b0e3048
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721** The following files, obsolete since at least Emacs 21.1, have been removed:
722sc.el, x-menu.el, rnews.el, rnewspost.el
723
33658d4e
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724** FIXME finder-inf.el changes.
725
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726\f
727* Lisp changes in Emacs 24.1
9097e8af 728
53cfe624 729** byte-compile-disable-print-circle is obsolete.
e7f7fbaa
SM
730** Removed the stack-trace-on-error variable.
731Also the debugger can now "continue" from an error, which means it will jump
732to the error handler as if the debugger had not been invoked instead of
733jumping all the way to the top-level.
734
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735** New function `read-char-choice' reads a restricted set of characters,
736discarding any inputs not inside the set.
737
2e288d54
JB
738** `image-library-alist' is renamed to `dynamic-library-alist'.
739The variable is now used to load all kind of supported dynamic libraries,
740not just image libraries. The previous name is still available as an
741obsolete alias.
742
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743** New variable syntax-propertize-function to set syntax-table properties.
744Replaces font-lock-syntactic-keywords which are now obsolete.
745This allows syntax-table properties to be set independently from font-lock:
746just call syntax-propertize to make sure the text is propertized.
747Together with this new variable come a new hook
748syntax-propertize-extend-region-functions, as well as two helper functions:
749syntax-propertize-via-font-lock to reuse old font-lock-syntactic-keywords
750as-is; and syntax-propertize-rules which provides a new way to specify
751syntactic rules.
752
a2e5caf7
SM
753** New hook post-self-insert-hook run at the end of self-insert-command.
754
7cf78aac 755+++
c5683ceb 756** Syntax tables support a new "comment style c" additionally to style b.
4e2db1fe 757** frame-local variables cannot be let-bound any more.
10dcc561 758** prog-mode is a new major-mode meant to be the parent of programming mode.
f44379e7
SM
759** define-minor-mode accepts a new keyword :variable.
760
b2957ea8 761** `delete-file' and `delete-directory' now accept optional arg TRASH.
f1a5d776
CY
762Trashing is performed if TRASH and `delete-by-moving-to-trash' are
763both non-nil. Interactively, TRASH defaults to t, unless a prefix
764argument is supplied (see Trash changes, above).
53967e09 765
8f92b8ad
SM
766** buffer-substring-filters is obsoleted by filter-buffer-substring-functions.
767
00278747
SM
768** New completion style `substring'.
769
9317e499
CY
770** `facemenu-read-color' is now an alias for `read-color'.
771The command `read-color' now requires a match for a color name or RGB
772triplet, instead of signalling an error if the user provides a invalid
773input.
774
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CY
775** Tool-bars can display separators.
776Tool-bar separators are handled like menu separators in menu-bar maps,
94975270 777i.e. via menu entries of the form `(menu-item "--")'.
9317e499 778
00fe2df1
JL
779** Image API
780
781*** When the image type is one of listed in `image-animated-types'
1546c559 782and the number of sub-images in the image is more than one, then the
00fe2df1
JL
783new function `create-animated-image' creates an animated image where
784sub-images are displayed successively with the duration defined by
785`image-animate-max-time' and the delay between sub-images defined
786by the Graphic Control Extension of the image.
787
1546c559
JL
788*** `image-extension-data' is renamed to `image-metadata'.
789
71c17aec
LMI
790** XML and HTML parsing
791
792*** If Emacs is compiled with libxml2 support (which is the default),
4b9832a6 793two new Emacs Lisp-level functions are defined:
84156e94
MA
794`libxml-parse-html-region' (which will parse "real world" HTML)
795and `libxml-parse-xml-region' (which parses XML). Both return an
4b9832a6
CY
796Emacs Lisp parse tree.
797
798FIXME: These should be front-ended by xml.el.
799
cf16af42 800** FIXME GnuTLS
71c17aec 801
a6020335
MH
802** Isearch
803
804*** New hook `isearch-update-post-hook' that runs in `isearch-update'.
805
9326ba26
CY
806** Progress reporters can now "spin".
807The MIN-VALUE and MAX-VALUE arguments of `make-progress-reporter' can
808now be nil, or omitted. This makes a "non-numeric" reporter. Each
809time you call `progress-reporter-update' on that progress reporter,
810with a nil or omitted VALUE argument, the reporter message is
811displayed with a "spinning bar".
812
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813\f
814* Changes in Emacs 24.1 on non-free operating systems
d53a60a6 815
04779484
JB
816** New configure.bat option --enable-checking builds emacs with extra
817runtime checks.
818
e3aef5c6 819** New configure.bat option --distfiles to specify files to be
86485587 820included in binary distribution
e3aef5c6 821
86485587 822** New make target `dist' to create binary distribution for MS Windows
e3aef5c6 823
05197f40 824\f
a933dad1 825----------------------------------------------------------------------
5b87ad55 826This file is part of GNU Emacs.
a933dad1 827
ab73e885 828GNU Emacs is free software: you can redistribute it and/or modify
5b87ad55 829it under the terms of the GNU General Public License as published by
ab73e885
GM
830the Free Software Foundation, either version 3 of the License, or
831(at your option) any later version.
5b87ad55
GM
832
833GNU Emacs is distributed in the hope that it will be useful,
834but WITHOUT ANY WARRANTY; without even the implied warranty of
835MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
836GNU General Public License for more details.
a933dad1 837
5b87ad55 838You should have received a copy of the GNU General Public License
ab73e885 839along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
a933dad1 840
05197f40 841\f
a933dad1
DL
842Local variables:
843mode: outline
844paragraph-separate: "[ \f]*$"
845end: