* shell.el (shell): When called interactively, offer to change the
[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** Search changes
251
252+++
253*** C-y in Isearch is now bound to isearch-yank-kill, instead of
254isearch-yank-line.
255
256+++
257*** M-s C-e in Isearch is now bound to isearch-yank-line.
258
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259+++
260** There is a new command `count-words-region', which does what you expect.
261
67027b49 262** completion-at-point now handles tags and semantic completion.
a982c7ec 263
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264** The default value of `backup-by-copying-when-mismatch' is now t.
265
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266** The command `just-one-space' (C-SPC), if given a negative argument,
267also deletes newlines around point.
268
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269** Deletion changes
270
271*** New option `delete-active-region'.
272If non-nil, C-d, [delete], and DEL delete the region if it is active
273and no prefix argument is given. If set to `kill', these commands
274kill instead.
275
276*** New command `delete-forward-char', bound to C-d and [delete].
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277This is meant for interactive use, and obeys `delete-active-region'.
278The command `delete-char' does not obey `delete-active-region'.
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279
280*** `delete-backward-char' is now a Lisp function.
281Apart from obeying `delete-active-region', its behavior is unchanged.
282However, the byte compiler now warns if it is called from Lisp; you
283should use delete-char with a negative argument instead.
284
285*** The option `mouse-region-delete-keys' has been deleted.
286
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287** Selection changes.
288
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289The default handling of clipboard and primary selections was changed
290to conform with modern X applications. In short, most commands for
291killing and yanking text now use the clipboard, while mouse commands
292use the primary selection.
293
294In the following, we provide a list of these changes, followed by a
295list of steps to get the old behavior back if you prefer that.
296
297*** `mouse-drag-copy-region' now defaults to nil.
298*** `select-active-regions' now defaults to t.
299Merely selecting text (e.g. with drag-mouse-1) no longer puts it in
300the kill-ring. The selected text is put in the primary selection, if
301the system possesses a separate primary selection facility (e.g. X).
302
303**** `select-active-regions' also accepts a new value, `only'.
304This means to only set the primary selection for temporarily active
305regions (usually made by mouse-dragging or shift-selection);
306"ordinary" active regions, such as those made with C-SPC followed by
307point motion, do not alter the primary selection.
308
309*** mouse-2 is now bound to `mouse-yank-primary'.
310This pastes from the primary selection, ignoring the kill-ring.
311Previously, mouse-2 was bound to `mouse-yank-at-click'.
312
313*** `x-select-enable-clipboard' now defaults to t on all platforms.
314*** `x-select-enable-primary' now defaults to nil.
315Thus, commands that kill text or copy it to the kill-ring (such as
316M-w, C-w, and C-k) also use the clipboard---not the primary selection.
317
318**** The "Copy", "Cut", and "Paste" items in the "Edit" menu are now
319exactly equivalent to, respectively M-w, C-w, and C-y.
320
321**** Note that on MS-Windows, `x-select-enable-clipboard' was already
322non-nil by default, as Windows does not support the primary selection
323between applications.
324
325*** To return to the previous behavior, do the following:
326
327**** Change `mouse-drag-copy-region' to t.
328**** Change `x-select-enable-primary' to t (on X only).
329**** Change `x-select-enable-clipboard' to nil.
330**** Bind `mouse-yank-at-click' to mouse-2.
f9d71b42 331
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332*** Support for X cut buffers has been removed.
333
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334** New command `rectangle-number-lines', bound to `C-x r N', numbers
335the lines in the current rectangle. With an prefix argument, this
336prompts for a number to count from and for a format string.
337
9bae34bf 338\f
eb199145 339* Changes in Specialized Modes and Packages in Emacs 24.1
efeb796b 340
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341** The compile.el mode can be used without font-lock-mode.
342`compilation-parse-errors-function' is now obsolete.
343
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344** The Landmark game is now invoked with `landmark', not `lm'.
345
04380ff1 346** Prolog mode has been completely revamped, with lots of additional
86485587 347functionality such as more intelligent indentation, electricity, support for
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348more variants, including Mercury, and a lot more.
349
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350** shell-mode can track your cwd by reading it from your prompt.
351Just set shell-dir-cookie-re to an appropriate regexp.
352
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353** Modula-2 mode provides auto-indentation.
354
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355** latex-electric-env-pair-mode keeps \begin..\end matched on the fly.
356
360ac530 357** FIXME: xdg-open for browse-url and reportbug, 2010/08.
0ac3effe 358
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359** Archive Mode has basic support to browse 7z archives.
360
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361** browse-url has gotten a new variable that is used for mailto: URLs,
362 `browse-url-mailto-function', which defaults to `browse-url-mail'.
363
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364** Directory local variables can apply to file-less buffers, in certain modes
365(eg dired, vc-dir, log-edit). For example, adding
366"(diff-mode . ((mode . whitespace)))" to your .dir-locals.el file,
367will turn on `whitespace-mode' for *vc-diff* buffers. Modes should
368call `hack-dir-local-variables-non-file-buffer' to support this.
369
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370+++
371** You can prevent directory local variables from applying to subdirectories.
372Add an element (subdirs . nil) to the alist portion of any variables
373settings to indicate said section should not be applied to subdirectories.
374
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375** ERC changes
376
377*** New vars `erc-autojoin-timing' and `erc-autojoin-delay'.
378If the value of `erc-autojoin-timing' is 'ident, ERC autojoins after a
379successful NickServ identification, or after `erc-autojoin-delay'
380seconds. The default value, 'ident, means to autojoin immediately
381after connecting.
382
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383*** New variable `erc-coding-system-precedence': If we use `undecided'
384as the server coding system, this variable will then be consulted.
385The default is to decode strings that can be decoded as utf-8 as
386utf-8, and do the normal `undecided' decoding for the rest.
387
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388** Eshell changes
389
390*** The default value of eshell-directory-name is a directory named
391"eshell" in `user-emacs-directory'. If the old "~/.eshell/" directory
392exists, that is used instead.
393
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394** In ido-mode, C-v is no longer bound to ido-toggle-vc.
395The reason is that this interferes with cua-mode.
396
c1e25821 397** partial-completion-mode is now obsolete.
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398You can get a comparable behavior with:
399(setq completion-styles '(partial-completion initials))
400(setq completion-pcm-complete-word-inserts-delimiters t)
c1e25821 401
18c812bd 402** mpc.el: Can use pseudo tags of the form tag1|tag2 as a union of two tags.
b2957ea8 403
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404** server can listen on a specific port using the server-port option.
405
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406** Calendar, Diary, and Appt
407
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408*** New function `diary-hebrew-birthday'.
409
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410---
411*** The obsolete (since Emacs 22.1) method of enabling the appt package
412by adding appt-make-list to diary-hook has been removed. Use appt-activate.
413
414---
415*** Some appt variables (obsolete since Emacs 22.1) have been removed:
416appt-issue-message (use the function appt-activate)
417appt-visible/appt-msg-window (use the variable appt-display-format)
418
419---
420*** Some diary function aliases (obsolete since Emacs 22.1) have been removed:
421view-diary-entries, list-diary-entries, show-all-diary-entries
422
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423** Customize
424
425*** Customize buffers now contain a search field.
426The search is performed using `customize-apropos'.
42d9cffa 427To turn off the search field, set custom-search-field to nil.
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428
429*** Custom options now start out hidden if at their default values.
430Use the arrow to the left of the option name to toggle visibility.
431
432*** custom-buffer-sort-alphabetically now defaults to t.
433
434*** The color widget now has a "Choose" button, which allows you to
435choose a color via list-colors-display.
436
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437** Dired-x
438
439*** dired-jump and dired-jump-other-window called with a prefix argument
440read a file name from the minibuffer instead of using buffer-file-name.
441
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442+++
443*** The `dired local variables' feature provided by Dired-x is obsolete.
444The standard directory local variables feature replaces it.
8117868f 445
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446** SQL Mode enhancements.
447
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448*** `sql-dialect' is a synonym for `sql-product'.
449
74790210 450*** Added ability to login with a port on MySQL and Postgres.
7492acc9 451The custom variable `sql-port' can be specified for connection to
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452MySQL or Postgres servers. By default, the port is not listed in
453either login parameter, but will be added to the command line if set
454to a non-zero value.
7492acc9 455
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456*** Dynamic selection of product in an SQL interactive session.
457If you use `sql-product-interactive' to start an SQL interactive
458session it uses the current value of `sql-product'. Preceding the
459invocation with C-u will force it to ask for the product before
460creating the session.
461
462*** Renaming a SQL interactive buffer when it is created.
463Prefixing the SQL interactive commands (`sql-sqlite', `sql-postgres',
464`sql-mysql', etc.) with C-u will force a new interactive session to be
465started and will prompt for the new name. This will reduce the need
466for `sql-rename-buffer' is most common use cases.
467
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468*** Command continuation prompts in SQL interactive mode are suppressed.
469Multiple line commands in SQL interactive mode, generate command
470continuation prompts which needlessly confuse the output. These
471prompts are now filtered out from the output. This change impacts
472multiple line SQL statements entered with C-j between each line,
473statements yanked into the buffer and statements sent with
474`sql-send-*' functions.
475
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476*** Custom variables control prompting for login parameters.
477Each supported product has a custom variable `sql-*-login-params'
478which is a list of the parameters to be prompted for before a
479connection is established.
480
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481The lists consist of the following five tokens: `user', `password',
482`database', `server', and `port'. The order in which they appear is
483the order in which they are prompted. The tokens symbols can be
484replaced by a sublist starting with the token and followed by a plist
485which control the prompting for values. The tokens `user',
486`database', and `server' each can take a property of :default which
487specifies the value to be used if no value is entered. The
488`database', `server', and `port' tokens handle the :completion
489property which restricts the entry to either one of the values in the
490list or to one of the values returned by the function provided as the
491property value. The `database' and `server' tokens also accept the
492:file property whose value is a regexp to identify useful file names.
493
494 (user :default DEF)
495 (database :default DEF
496 :file FILEPAT
497 :completion COMPLETE)
498 (server :default DEF
499 :file FILEPAT
500 :completion COMPLETE)
501
502The FILEPAT when :file is specified is a regexp that will match valid
503file names (without the directory portion). Generally these strings
504will be of the form ".+\.SUF" where SUF is the desired file suffix.
505
506When :completion is specified, the COMPLETE corresponds to the
507PREDICATE argument to the `completing-read' function (a list of
508possible values or a function returning such a list).
5474c40f 509
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510*** Added `sql-connection-alist' to record login parameter values.
511An alist for recording different username, database and server
512values. If there are multiple databases that you connect to the
513parameters needed can be stored in this alist.
514
515For example, the following might be set in the user's init.el:
516
517 (setq sql-connection-alist
518 '((dev (sql-product 'sqlite)
519 (sql-database "/home/mmaug/dev.db"))
520 (prd (sql-product 'oracle)
521 (sql-user "mmaug")
522 (sql-database "iprd2a"))))
523
524This defines two connections named "dev" and "prd".
525
526*** Added `sql-connect' to use predefined connections.
527Sets the login parameters based on the values in the
528`sql-connection-alist' and start a SQL interactive session. Any
529values specified in the connection will not be prompted for.
530
531In the example above, if the user were to invoke M-x sql-connect, they
532would be prompted for the connection. The user can respond with
533either "dev" or "prd". The "dev" connection would connect to the
534SQLite database without prompting; the "prd" connection would prompt
535for the users password and then connect to the Oracle database.
536
d26b0ea9 537**** Added SQL->Start... submenu when connections are defined.
b2957ea8 538When connections have been defined, there is a submenu available that
d26b0ea9
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539allows the user to select one to start a SQLi session. The "Start
540SQLi Session" item moves to the "Start..." submenu when cnnections
541have been defined.
542
543**** Added "Save Connection" menu item in SQLi buffers.
544When a SQLi session is not started by a connection then
545`sql-save-connection' will gather the login params specified for the
546session and save them as a new connection.
547
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548*** List database objects and details.
549Once a SQL interactive session has been started, you can get a list of
550the objects in the database and see details of those objects. The
551objects shown and the details available are product specific.
552
553**** List all objects.
554Using `M-x sql-list-all', `C-c C-l a' or selecting "SQL->List all
555objects" will list all the objects in the database. At a minimum it
86485587 556lists the tables and views in the database. Preceding the command by
74790210
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557universal argument may provide additional details or extend the
558listing to include other schemas objects. The list will appear in a
559separate window in view-mode.
560
561**** List Table details.
562Using `M-x sql-list-table', `C-c C-l t' or selecting "SQL->List Table
563details" will ask for the name of a database table or view and display
86485587 564the list of columns in the relation. Preceding the command with the
74790210
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565universal argument may provide additional details about each column.
566The list will appear in a separate window in view-mode.
567
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568*** Added option `sql-send-terminator'.
569When set makes sure that each command sent with `sql-send-*' commands
570are properly terminated and submitted to the SQL processor.
571
572*** Added option `sql-oracle-scan-on'.
573When set commands sent to Oracle's SQL*Plus are scanned for strings
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574starting with an ampersand and the user is asked for replacement text.
575In general, the SQL*Plus option SCAN should always be set OFF under
576SQL interactive mode and this option used in its place.
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577
578*** SQL interactive mode will replace tabs with spaces.
86485587 579This prevents the command interpreter for MySQL and Postgres from
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580listing object name completions when being sent text via
581`sql-send-*' functions.
582
583*** An API for manipulating SQL product definitions has been added.
584
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585** sregex.el is now obsolete, since rx.el is a strict superset.
586
6ca94a0b 587** s-region.el and pc-select are now declared obsolete,
86485587 588superseded by shift-select-mode enabled by default in 23.1.
6ca94a0b 589** pc-mode.el is also declared obsolete.
691cf4a0
NR
590** gdb-mi
591
592*** GDB User Interface migrated to GDB Machine Interface and now
593supports multithread non-stop debugging and debugging of several
594threads simultaneously.
595
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596** D-Bus
597
598*** It is possible now, to access alternative buses than the default
599system or session bus.
600
3c3d4f5b
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601*** dbus-register-{service,method,property}
602The -method and -property functions do not automatically register
603names anymore.
604
605The new function dbus-register-service registers a service known name
606on a D-Bus without simultaneously registering a property or a method.
412b9ee5 607
459bba37
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608** Tramp
609
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610*** There exists a new inline access method "ksu" (kerberized su).
611
459bba37 612*** The following access methods are discontinued: "ssh1_old",
ea843702 613"ssh2_old", "scp1_old", "scp2_old", "imap", "imaps" and "fish".
459bba37 614
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615** VC and related modes
616
617*** Support for pulling on distributed version control systems.
659114fd 618The vc-pull command runs a "pull" operation, if it is supported.
0c32ce32 619This updates the current branch from upstream. A prefix argument
659114fd 620means to prompt the user for specifics, e.g. a pull location.
0c32ce32 621
7d93eca9 622**** `vc-update' is now an alias for `vc-pull'.
0c32ce32 623
659114fd 624**** Currently supported by Bzr, Git, and Mercurial.
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625
626*** Support for merging on distributed version control systems.
627The vc-merge command now runs a "merge" operation, if it is supported.
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628This merges another branch into the current one. This command prompts
629the user for specifics, e.g. a merge source.
0c32ce32 630
33f6cf7b 631**** Currently supported for Bzr, Git, and Mercurial.
0c32ce32 632
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633*** Log entries in some Log View buffers can be toggled to display a
634longer description by typing RET (log-view-toggle-entry-display).
635In the Log View buffers made by `C-x v L' (vc-print-root-log), you can
636use this to display the full log entry for the revision at point.
637
33f6cf7b 638**** Currently supported for Bzr, Git, and Mercurial.
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639
640**** Packages using Log View mode can enable this functionality by
641binding `log-view-expanded-log-entry-function' to a suitable function.
642
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643** Miscellaneous
644
645---
646*** `copyright-fix-years' can optionally convert consecutive years to ranges.
647
5b3e6db8
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648*** New command `nato-region' converts text to NATO phonetic alphabet.
649
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650\f
651* New Modes and Packages in Emacs 24.1
d445b3f8 652
7100ff98
SM
653** New global minor modes electric-pair-mode, electric-indent-mode,
654and electric-layout-mode.
3b843809 655
d02c9bcd
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656** pcase.el provides the ML-style pattern matching macro `pcase'.
657
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658** secrets.el is an implementation of the Secret Service API, an
659interface to password managers like GNOME Keyring or KDE Wallet. The
065f2743
MA
660Secret Service API requires D-Bus for communication. The command
661`secrets-show-secrets' offers a buffer with a visualization of the
662secrets.
7725ebb7 663
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664** notifications.el provides an implementation of the Desktop
665Notifications API. It requires D-Bus for communication.
666
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667** soap-client.el supports access to SOAP web services from Emacs.
668soap-inspect.el is an interactive inspector for SOAP WSDL structures.
669
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670** xmodmap-generic-mode for xmodmap files.
671
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672\f
673* Incompatible Lisp Changes in Emacs 24.1
6dfcbe31 674
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675** `copy-directory' now copies the source directory as a subdirectory
676of the target directory, if the latter is an existing directory. The
677new optional arg COPY-CONTENTS, if non-nil, makes the function copy
678the contents directly into a pre-existing target directory.
679
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680** `compose-mail' now accepts an optional 8th arg, RETURN-ACTION, and
681passes it to the mail user agent function. This argument specifies an
682action for returning to the caller after finishing with the mail.
683This is currently used by Rmail to delete a mail window.
684
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685** For mouse click input events in the text area, the Y pixel
686coordinate in the POSITION list now counts from the top of the text
687area, excluding any header line. Previously, it counted from the top
688of the header line.
689
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690** Remove obsolete name `e' (use `float-e' instead).
691
288cf4e9
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692** A backquote not followed by a space is now always treated as new-style.
693
fd5c9dfa 694** Test for special mode-class was moved from view-file to view-buffer.
288cf4e9
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695FIXME: This only says what was changed, but not what are the
696programmer-visible consequences.
fd5c9dfa 697
3b7e1d5f
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698** Passing a nil argument to a minor mode function now turns the mode
699 ON unconditionally.
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700
701** During startup, Emacs no longer adds entries for `menu-bar-lines'
702and `tool-bar-lines' to `default-frame-alist' and
703`initial-frame-alist'. With these alist entries omitted, `make-frame'
704checks the value of the variable `menu-bar-mode'/`tool-bar-mode' to
705determine whether to create a menu-bar or tool-bar, respectively.
706If the alist entries are added, they override the value of
707`menu-bar-mode'/`tool-bar-mode'.
708
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709** Regions created by mouse dragging are now normal active regions,
710similar to the ones created by shift-selection. In previous Emacs
711versions, these regions were delineated by `mouse-drag-overlay', which
712has now been removed.
d6d8ee7a 713
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714** cl.el no longer provides `cl-19'.
715
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716** The following functions and aliases, obsolete since at least Emacs 21.1,
717have been removed:
718comint-kill-output, decompose-composite-char, outline-visible,
719internal-find-face, internal-get-face, frame-update-faces,
720frame-update-face-colors, x-frob-font-weight, x-frob-font-slant,
721x-make-font-bold, x-make-font-demibold, x-make-font-unbold
722x-make-font-italic, x-make-font-oblique, x-make-font-unitalic
723x-make-font-bold-italic, mldrag-drag-mode-line, mldrag-drag-vertical-line,
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724iswitchb-default-keybindings, char-bytes, isearch-return-char,
725make-local-hook
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726
727** The following variables and aliases, obsolete since at least Emacs 21.1,
728have been removed:
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729checkdoc-minor-keymap, vc-header-alist, directory-sep-char,
730font-lock-defaults-alist
3226d6ca 731
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732** The following files, obsolete since at least Emacs 21.1, have been removed:
733sc.el, x-menu.el, rnews.el, rnewspost.el
734
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735** FIXME finder-inf.el changes.
736
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737\f
738* Lisp changes in Emacs 24.1
9097e8af 739
53cfe624 740** byte-compile-disable-print-circle is obsolete.
e7f7fbaa
SM
741** Removed the stack-trace-on-error variable.
742Also the debugger can now "continue" from an error, which means it will jump
743to the error handler as if the debugger had not been invoked instead of
744jumping all the way to the top-level.
745
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746** New function `read-char-choice' reads a restricted set of characters,
747discarding any inputs not inside the set.
748
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749** `image-library-alist' is renamed to `dynamic-library-alist'.
750The variable is now used to load all kind of supported dynamic libraries,
751not just image libraries. The previous name is still available as an
752obsolete alias.
753
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754** New variable syntax-propertize-function to set syntax-table properties.
755Replaces font-lock-syntactic-keywords which are now obsolete.
756This allows syntax-table properties to be set independently from font-lock:
757just call syntax-propertize to make sure the text is propertized.
758Together with this new variable come a new hook
759syntax-propertize-extend-region-functions, as well as two helper functions:
760syntax-propertize-via-font-lock to reuse old font-lock-syntactic-keywords
761as-is; and syntax-propertize-rules which provides a new way to specify
762syntactic rules.
763
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764** New hook post-self-insert-hook run at the end of self-insert-command.
765
7cf78aac 766+++
c5683ceb 767** Syntax tables support a new "comment style c" additionally to style b.
4e2db1fe 768** frame-local variables cannot be let-bound any more.
10dcc561 769** prog-mode is a new major-mode meant to be the parent of programming mode.
f44379e7
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770** define-minor-mode accepts a new keyword :variable.
771
b2957ea8 772** `delete-file' and `delete-directory' now accept optional arg TRASH.
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773Trashing is performed if TRASH and `delete-by-moving-to-trash' are
774both non-nil. Interactively, TRASH defaults to t, unless a prefix
775argument is supplied (see Trash changes, above).
53967e09 776
8f92b8ad
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777** buffer-substring-filters is obsoleted by filter-buffer-substring-functions.
778
00278747
SM
779** New completion style `substring'.
780
9317e499
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781** `facemenu-read-color' is now an alias for `read-color'.
782The command `read-color' now requires a match for a color name or RGB
783triplet, instead of signalling an error if the user provides a invalid
784input.
785
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786** Tool-bars can display separators.
787Tool-bar separators are handled like menu separators in menu-bar maps,
94975270 788i.e. via menu entries of the form `(menu-item "--")'.
9317e499 789
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790** Image API
791
792*** When the image type is one of listed in `image-animated-types'
1546c559 793and the number of sub-images in the image is more than one, then the
00fe2df1
JL
794new function `create-animated-image' creates an animated image where
795sub-images are displayed successively with the duration defined by
796`image-animate-max-time' and the delay between sub-images defined
797by the Graphic Control Extension of the image.
798
1546c559
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799*** `image-extension-data' is renamed to `image-metadata'.
800
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801** XML and HTML parsing
802
803*** If Emacs is compiled with libxml2 support (which is the default),
4b9832a6 804two new Emacs Lisp-level functions are defined:
84156e94
MA
805`libxml-parse-html-region' (which will parse "real world" HTML)
806and `libxml-parse-xml-region' (which parses XML). Both return an
4b9832a6
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807Emacs Lisp parse tree.
808
809FIXME: These should be front-ended by xml.el.
810
cf16af42 811** FIXME GnuTLS
71c17aec 812
a6020335
MH
813** Isearch
814
815*** New hook `isearch-update-post-hook' that runs in `isearch-update'.
816
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817** Progress reporters can now "spin".
818The MIN-VALUE and MAX-VALUE arguments of `make-progress-reporter' can
819now be nil, or omitted. This makes a "non-numeric" reporter. Each
820time you call `progress-reporter-update' on that progress reporter,
821with a nil or omitted VALUE argument, the reporter message is
822displayed with a "spinning bar".
823
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824\f
825* Changes in Emacs 24.1 on non-free operating systems
d53a60a6 826
04779484
JB
827** New configure.bat option --enable-checking builds emacs with extra
828runtime checks.
829
e3aef5c6 830** New configure.bat option --distfiles to specify files to be
86485587 831included in binary distribution
e3aef5c6 832
86485587 833** New make target `dist' to create binary distribution for MS Windows
e3aef5c6 834
05197f40 835\f
a933dad1 836----------------------------------------------------------------------
5b87ad55 837This file is part of GNU Emacs.
a933dad1 838
ab73e885 839GNU Emacs is free software: you can redistribute it and/or modify
5b87ad55 840it under the terms of the GNU General Public License as published by
ab73e885
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841the Free Software Foundation, either version 3 of the License, or
842(at your option) any later version.
5b87ad55
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843
844GNU Emacs is distributed in the hope that it will be useful,
845but WITHOUT ANY WARRANTY; without even the implied warranty of
846MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
847GNU General Public License for more details.
a933dad1 848
5b87ad55 849You should have received a copy of the GNU General Public License
ab73e885 850along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
a933dad1 851
05197f40 852\f
a933dad1
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853Local variables:
854mode: outline
855paragraph-separate: "[ \f]*$"
856end: