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