NEWS 63.7 KB
Newer Older
1
GNU Emacs NEWS -- history of user-visible changes.
2

Glenn Morris's avatar
Glenn Morris committed
3
Copyright (C) 2007, 2008 Free Software Foundation, Inc.
4
See the end of the file for license conditions.
Dave Love's avatar
#  
Dave Love committed
5

6
Please send Emacs bug reports to emacs-pretest-bug@gnu.org.
7 8
If possible, use M-x report-emacs-bug.

9
This file is about changes in Emacs version 23.
10

11 12
See files NEWS.22, NEWS.21, NEWS.20, NEWS.19, NEWS.18, and NEWS.1-17
for changes in older Emacs versions.
13 14 15

You can narrow news to a specific version by calling `view-emacs-news'
with a prefix argument or by typing C-u C-h C-n.
16 17 18 19 20 21 22

Temporary note:
 +++ indicates that the appropriate manual has already been updated.
 --- means no change in the manuals is called for.
When you add a new item, please add it without either +++ or ---
so we will look at it and add it to the manual.

23 24 25

* About external Lisp packages

26

27
* Installation Changes in Emacs 23.1
28

29
** The default X toolkit is now Gtk+, rather than Lucid.
Chong Yidong's avatar
Chong Yidong committed
30 31
The configure option `--with-gtk' has been removed.  Gtk is now the
default toolkit, but you can use --with-x-toolkit=gtk if necessary.
32

Chong Yidong's avatar
Chong Yidong committed
33 34
** New font code.
Fonts are handled by new code capable of dealing with multiple font
35
backends.  This uses the freetype and fontconfig libraries.
36

Chong Yidong's avatar
Chong Yidong committed
37 38
*** Emacs now accepts font names supplied in the fontconfig format
(e.g. "monospace-12:bold") and GTK format (e.g. "Monospace Bold 12").
Dan Nicolaescu's avatar
Dan Nicolaescu committed
39

Chong Yidong's avatar
Chong Yidong committed
40 41 42 43 44 45 46 47 48
*** Added support for local fonts (fonts installed on the machine
where Emacs is running).

*** Added support for the Xft library for antialiasing.

*** Added support for the otf library for complex text layout by
OpenType fonts.

*** Added support for the m17n library for text shaping.
49

Chong Yidong's avatar
Chong Yidong committed
50
** Changes to image support
Chong Yidong's avatar
Chong Yidong committed
51
---
Chong Yidong's avatar
Chong Yidong committed
52
*** configure now checks for libgif before libungif when searching for
53
a GIF library.
Chong Yidong's avatar
Chong Yidong committed
54
+++
Chong Yidong's avatar
Chong Yidong committed
55 56
*** Emacs now supports the SVG image format through librsvg2.

Chong Yidong's avatar
Chong Yidong committed
57 58 59 60 61 62 63
** New NeXTSTEP-based port
This provides support for GNUStep (via the GNUStep libraries) and Mac
OS X (via the Cocoa libraries).  See nextstep/README and
nextstep/INSTALL in the Emacs source directory.

** Mac OS X is no longer supported via Carbon.
Use the NeXTSTEP port, described above.
Glenn Morris's avatar
Glenn Morris committed
64

Chong Yidong's avatar
Chong Yidong committed
65 66
** The new configuration option "--with-dbus" enables D-Bus language
bindings for Emacs.
67

68 69
** Support for many obsolete platforms has been removed.
See the list at the end of etc/MACHINES for details.
Chong Yidong's avatar
Chong Yidong committed
70
---
Chong Yidong's avatar
Chong Yidong committed
71
*** Support for systems without alloca has been removed.
Chong Yidong's avatar
Chong Yidong committed
72
---
Chong Yidong's avatar
Chong Yidong committed
73
*** Support for Sun windows has been removed.
Chong Yidong's avatar
Chong Yidong committed
74 75
---
*** The `emacstool' utility has been removed.
Chong Yidong's avatar
Chong Yidong committed
76

Chong Yidong's avatar
Chong Yidong committed
77
** The following platforms will be removed in a future Emacs version:
78 79
If you are still using Emacs on one of these platforms, please email
emacs-devel@gnu.org to inform the Emacs developers.
Chong Yidong's avatar
Chong Yidong committed
80

81
*** Old GNU/Linux systems based on libc version 5.
Chong Yidong's avatar
Chong Yidong committed
82

83 84
*** Old FreeBSD, NetBSD, and OpenBSD systems based on the COFF
    executable format.
Chong Yidong's avatar
Chong Yidong committed
85 86 87

*** Solaris versions 2.6 and below.

88 89 90 91
*** Solaris on IBM RS6000 machines.

*** UNIX System V (the original SysV, not later platforms based on it).

92 93
*** Unixware on non-x86 machines.

94 95
*** Platforms not supporting shared libraries (i.e., requiring the
NO_SHARED_LIBS compilation flag).
Chong Yidong's avatar
Chong Yidong committed
96

Chong Yidong's avatar
Chong Yidong committed
97
---
98 99 100 101
** The configure options `--with-gcc', `--without-gcc' have been removed.
Configure will use gcc by default.  Set the CC environment variable if
you need control over which C compiler is used.

Chong Yidong's avatar
Chong Yidong committed
102 103
** The refcards are now shipped as PDF files.

Chong Yidong's avatar
Chong Yidong committed
104
---
Chong Yidong's avatar
Chong Yidong committed
105 106 107
** Emacs 23 comes with a new set of default icons.
Various resolutions are available as etc/images/icons/hicolor/*/apps/emacs.png.
The Emacs 22 icon is available as `emacs22.png' in the same location.
Nick Roberts's avatar
Nick Roberts committed
108 109 110

* Changes in Emacs 23.1

111 112 113 114 115 116 117
** Emacs can now be built under the Cocoa libraries on Mac OS X and GNUstep
   libraries on other machines.  Specify --with-ns to configure for this. By
   default a self-contained app will be built (containing all lisp).  To
   install/share lisp with other emacsen (e.g. X11 build) use
   --disable-ns-self-contained.  Use 'info-ns-emacs' or first entry under Help
   menu when running for more information.

118 119
** `where-is-preferred-modifier' can specify your favorite modifier.

Chong Yidong's avatar
Chong Yidong committed
120
** Improved X Window System support
121

Chong Yidong's avatar
Chong Yidong committed
122 123 124 125 126
*** Emacs now supports using both X displays and ttys in one session.
With an Emacs server active (M-x server-start), `emacsclient -t'
creates a tty frame connected to the running emacs server.  You can
use any number of different ttys.  `emacsclient -c' creates a new X11
frame on the current $DISPLAY (or a tty frame if $DISPLAY is not set).
127 128 129 130

You can test for the presence of this feature in your Lisp code by
testing for the `multi-tty' feature.

Chong Yidong's avatar
Chong Yidong committed
131 132 133 134
**** Emacsclient can now open new terminal frames.
Now, the default behavior is to open a new Emacs frame by default.
Use the -c option to get the old behavior of opening files in the
currently selected Emacs frame.
135

Chong Yidong's avatar
Chong Yidong committed
136 137
*** The new command close-display-connection closes a connection to a
remote display.
138

Chong Yidong's avatar
Chong Yidong committed
139 140 141
*** Emacs now supports the XEmbed specification.
You can embed Emacs in another application on X11.  The new command line
option --parent-id is used to pass the parent window id to Emacs.  See
Jan Djärv's avatar
Jan Djärv committed
142 143 144
http://standards.freedesktop.org/xembed-spec/xembed-spec-latest.html
for details about XEmbed.

Chong Yidong's avatar
Chong Yidong committed
145 146 147
*** Emacs can now set the frame opacity.
The opacity of a frame can be controlled by setting the `alpha' frame
parameter.  This only takes effect on a compositing window manager for
148 149
the X Window System, such as Compiz, Beryl and Compiz Fusion, or on
Windows 2000 and later versions of Windows.
150 151

The alpha parameter should be an integer between 0 (transparent) and
Chong Yidong's avatar
Chong Yidong committed
152 153 154
100 (opaque), or a float number between 0.0 and 1.0.  It can also be a
cons cell (ACTIVE . INACTIVE), where ACTIVE is the opacity of an
active frame and INACTIVE is the opactity of non-active frames.
155

Chong Yidong's avatar
Chong Yidong committed
156 157
The variable `frame-alpha-lower-limit' defines a lower bound for the
opacity; the default is 20.
158

159 160 161 162 163
*** Emacs can now use `auth-source' for authentication.
`smtpmail' and `url' (Tramp and Gnus also) use `auth-source' to obtain
login names and passwords.  The match, if found, is reported
in *Messages* with the password blanked out.

Chong Yidong's avatar
Chong Yidong committed
164
** Internationalization changes
165

Chong Yidong's avatar
Chong Yidong committed
166 167
*** The Emacs character set is now a superset of Unicode.
(It has about four times the code space, which should be plenty).
Stefan Monnier's avatar
Stefan Monnier committed
168

Chong Yidong's avatar
Chong Yidong committed
169 170 171 172
The internal encoding used for buffers and strings is now
Unicode-based and called `utf-8-emacs'.  This encoding is backwards
compatible with Unicode's UTF-8 encoding.  The internal encoding
previously used by Emacs, `emacs-mule', is still available.
Nick Roberts's avatar
Nick Roberts committed
173

Chong Yidong's avatar
Chong Yidong committed
174 175 176 177 178 179 180
During byte-compilation, Emacs 23 uses `utf-8-emacs' to write files.
As a result, byte-compiled files containing non-ASCII characters can't
be read by earlier versions of Emacs.  Files compiled by Emacs 20, 21,
or 22 are loaded correctly as emacs-mule (whether or not they contain
multibyte characters).  This takes somewhat more time, so it may be
worth recompiling existing .elc files which don't need to be shared
with older Emacsen.
181

Chong Yidong's avatar
Chong Yidong committed
182
*** There are new coding systems/aliases; see M-x list-coding-systems.
183

Chong Yidong's avatar
Chong Yidong committed
184 185 186
*** There is a new charset implementation with many new charsets.
See M-x list-character-sets.  New charsets can be defined conveniently
as tables of unicodes.
Dan Nicolaescu's avatar
Dan Nicolaescu committed
187

Chong Yidong's avatar
Chong Yidong committed
188 189
**** The dimension of a charset is now 1, 2, 3, or 4, and the size of
each dimension is no longer limited to 94 or 96.
190

Chong Yidong's avatar
Chong Yidong committed
191 192
**** A dynamic charset priority list is used to infer the charset of
characters for display.
193

Chong Yidong's avatar
Chong Yidong committed
194 195 196
*** There are new language environments for Chinese-GBK,
Chinese-GB18030, Khmer, Bengali, Punjabi, Gujarati, Oriya, Telugu,
Sinhala, and TaiViet.
197

Chong Yidong's avatar
Chong Yidong committed
198 199
*** The minor modes unify-8859-on-encoding-mode and
unify-8859-on-decoding-mode are obsolete.
200

201 202 203 204
*** `ucs-insert' is bound to `C-x 8 RET' and in addition to hex numbers
accepts numbers in hash notation (e.g. #o21430 for octal, or #10r8984 for
decimal).  It also accepts Unicode character names with completion.

205 206 207 208 209
*** The `cyrillic-translit' input method supports many new characters.
Common typographical characters available from Unicode were added to
`cyrillic-translit': punctuation marks, accented characters, fractions,
and others.

Chong Yidong's avatar
Chong Yidong committed
210
** Emacs now supports serial port access on GNU/Linux, Unix, and
211 212 213
Windows.  The new command `serial-term' starts an interactive terminal
on a serial port.  The serial port can be configured at runtime with
the mode-line mouse menu.
214

Chong Yidong's avatar
Chong Yidong committed
215
** Menu Bar changes
216
---
Chong Yidong's avatar
Chong Yidong committed
217 218 219 220 221
*** In the Options menu, the "Set Default Font" item applies the
selected font to the `default' face on all frames, not just the
current frame.  Furthermore, if Emacs is compiled with both GTK and
Fontconfig support, the "Set Default Font" item uses the GTK font
selection dialog instead of an Emacs pop-up menu.
222
---
Chong Yidong's avatar
Chong Yidong committed
223 224
*** The font setting chosen by "Set Default Font" is saved if the
"Save Options" item is used.
225

226 227 228
*** The Tools menu contains a new Encryption/Decryption submenu.
This contains commands provided by EasyPG, the newly-included
interface to GnuPG (see New Modes and Packages).
229 230 231 232 233
---
*** In the Options menu, the "Truncate Long Lines in the Buffer" entry
has been replaced with a submenu offering three different ways to
handle long lines: truncation, continuation at the window edge, and
the new word wrapping option (see Editing Changes, below).
Glenn Morris's avatar
Glenn Morris committed
234

Dan Nicolaescu's avatar
Dan Nicolaescu committed
235 236 237 238
*** Improvements to menus for major and minor modes
More major and minor modes now have a mode specific menu, and existing
mode menus have been improved to include more functionality.

Chong Yidong's avatar
Chong Yidong committed
239
** Mode-line changes
240
+++
Chong Yidong's avatar
Chong Yidong committed
241 242
*** The mode-line displays a `@', instead of `-', if the
default-directory for the current buffer is on a remote machine.
243

Chong Yidong's avatar
Chong Yidong committed
244 245
*** The mode-line displays a mode menu when mouse-1 is clicked on a
minor mode, in the same way as it already did for major modes.
246

Chong Yidong's avatar
Chong Yidong committed
247 248
*** The `mode-line-emphasis' face is used to highlight certain
mode-line information (e.g. waiting for a VC command to finish).
249

Dan Nicolaescu's avatar
Dan Nicolaescu committed
250 251 252 253 254
*** The mode-line tooltips have been improved to provide more details.

*** The VC, line/colum number and minor mode indicators on the mode
line are now interactive: mouse-1 can be used on them to pop up a menu.

Chong Yidong's avatar
Chong Yidong committed
255 256 257 258
** Directory-local variables can now be defined.
By default, Emacs looks in .dir-settings.el for directory-local
variables.  For more information, see `set-directory-project' and
`define-project-bindings'.
259

260

261
* Startup Changes in Emacs 23.1
262

263
+++
264 265 266 267 268 269
** The option `inhibit-startup-screen' (with aliases to old names
`inhibit-splash-screen' and `inhibit-startup-message') doesn't inhibit
display of the initial message in the *scratch* buffer.  If you don't
want to display the initial message in the *scratch* buffer at startup,
you can set the option `initial-scratch-message' to nil.

270 271 272 273
** New user option `initial-buffer-choice' specifies what to display
after starting Emacs: startup screen, *scratch* buffer, visiting a
file or directory.

274 275 276 277
** New alias `argv' for `command-line-args-left'
This is a convenience alias, so that one can write `(pop argv)'
inside of --eval command line arguments in order to access
following arguments.
278 279

** The abbrev file is no longer read at startup in batch mode.
280

281
* Incompatible Editing Changes in Emacs 23.1
Kim F. Storm's avatar
Kim F. Storm committed
282

283 284 285
** In Dired, `dired-flag-garbage-files' is rebound from `&' to `%&'
on the regexp command prefix map.

286 287 288 289 290
+++
** In Dired-x, all command guesses for ! are now added to the default
list accessible by M-n instead of pushing all guesses temporarily into
the history list.

291 292 293 294 295 296
** In Isearch mode, a special case of typing `C-w' at the beginning of
the minibuffer that toggles word search (i.e. using key sequences
`C-s RET C-w' or `C-s M-e C-w') is obsolete.  You can use the global key
`M-s w' to start word search, or type `M-s w' in Isearch mode to
toggle word search.

297
---
Reiner Steib's avatar
Reiner Steib committed
298
** The following input methods were removed in Emacs 22.2, but this was
Juanma Barranquero's avatar
Juanma Barranquero committed
299
not advertised: danish-alt-postfix, esperanto-alt-postfix,
Reiner Steib's avatar
Reiner Steib committed
300 301 302 303
finnish-alt-postfix, german-alt-postfix, icelandic-alt-postfix,
norwegian-alt-postfix, scandinavian-alt-postfix, spanish-alt-postfix,
and swedish-alt-postfix.  Use the versions without "alt-", which are
identical.
304

Richard M. Stallman's avatar
Richard M. Stallman committed
305

306
* Editing Changes in Emacs 23.1
Richard M. Stallman's avatar
Richard M. Stallman committed
307

308 309 310 311 312
** The C-n and C-p line-motion commands now move by screen lines,
taking continued lines and variable-width characters into account.
Setting `line-move-visual' to nil reverts this to the previous
behavior (motion by logical lines based on buffer contents alone).

Chong Yidong's avatar
Chong Yidong committed
313 314 315
** C-x C-c now invokes `save-buffers-kill-terminal', and C-z now
invokes `suspend-frame'.  This change is for compatibility with the
new multi-tty support (see `Improved X Window System support' above).
316

Chong Yidong's avatar
Chong Yidong committed
317
** Mark changes
318
+++
319 320 321 322
*** Transient Mark mode is now on by default.
+++
*** mark-even-if-inactive now defaults to t
+++
323 324
*** When Transient Mark mode is on, C-SPC C-SPC pushes a mark without
activating it.
325
+++
326 327
*** When Transient Mark mode is on, M-q now fills the region if the
region is active.  Otherwise, it fills the current paragraph.
Juri Linkov's avatar
Juri Linkov committed
328
+++
329 330
*** When Transient Mark mode is on, M-$ now checks spelling of the
region if the region is active.  Otherwise, it checks spelling of the
Juri Linkov's avatar
Juri Linkov committed
331
word at point.
332 333 334 335 336 337 338
*** When Transient Mark mode is on, TAB now indents the region if the
region is active.
*** `use-empty-active-region' controls whether an empty active region
in Transient Mark mode should make commands operate on that empty
region.

** Temporarily active regions
Chong Yidong's avatar
Chong Yidong committed
339
+++
340 341 342 343
*** The new variable shift-select-mode, non-nil by default, controls
shift-selection.  When Shift Select mode is on, shift-translated
motion keys (e.g. S-left and S-down) activate and extend a temporary
region, similar to mouse-selection.
Chong Yidong's avatar
Chong Yidong committed
344
+++
345 346 347 348 349 350 351
*** Temporarily active regions, created using shift-selection or
mouse-selection, are not necessarily deactivated in the next command.
They are only deactivated after point motion commands that are not
shift-translated, or after commands that would ordinarily deactivate
the mark in Transient Mark mode (e.g., any command that modifies the
buffer).

352
** Minibuffer changes
353

354 355 356 357 358 359
*** When M-n in the minibuffer reaches the end of the list of defaults,
it adds the completion list to the end, so next M-n continues putting
completion items to the minibuffer.  The same principle applies to
incremental search commands as well: C-s or C-M-s starts searching
the default values and after the end of defaults they continue
searching minibuffer completion items.
360

Chong Yidong's avatar
Chong Yidong committed
361 362 363 364
*** Minibuffer input of shell commands now comes with completion.

*** In the `C-x d' (Dired) prompt, typing M-n gives the visited file
name of the current buffer.
365

Chong Yidong's avatar
Chong Yidong committed
366 367 368 369 370
*** In the M-! (shell-command) prompt, M-n provides some default commands.
These are guessed using the file extension of the current file, based
on the file-handlers specified in the operating system's `mailcap'
file.  The ! command in Dired (dired-do-shell-command) works
similarly, using the file displayed on the current line.
371 372 373

*** A list of regexp default values is available via M-n for `occur',
`keep-lines', `flush-lines' and `how-many'.  This list includes the active
Juri Linkov's avatar
Juri Linkov committed
374 375
region in transient-mark-mode, the word under the cursor, the last Isearch
regexp, the last Isearch string and the last replacement regexp.
376

377 378 379 380 381 382
*** When enable-recursive-minibuffers is non-nil, operations which use
switch-to-buffer (such as C-x b and C-x C-f) do not fail any more when
used in a minibuffer or a dedicated window.  Instead, they fallback on
using pop-to-buffer, which will use some other window.  This change
has no effect when enable-recursive-minibuffers is nil (the default).

Juri Linkov's avatar
Juri Linkov committed
383 384 385
*** Isearch started in the minibuffer searches in the minibuffer history.
Reverse Isearch commands (C-r, C-M-r) search in previous minibuffer
history elements, and forward Isearch commands (C-s, C-M-s) search in
386 387 388 389 390
next history elements.  When the reverse search reaches the first history
element, it wraps to the last history element, and the forward search
wraps to the first history element.  When the search is terminated, the
history element containing the search string becomes the current.

391 392 393 394 395 396
*** The variable read-file-name-completion-ignore-case overrides
completion-ignore-case for file name completion.

*** The variable read-buffer-completion-ignore-case overrides
completion-ignore-case for buffer name completion.

397 398
** Face changes

399 400 401
*** S-down-mouse-1 now pops up a menu for changing the font and text
size of the default face in the current buffer.  The face is changed
via face remapping (see below).
402

Glenn Morris's avatar
Glenn Morris committed
403 404
*** FIXME face-remap

Chong Yidong's avatar
Chong Yidong committed
405
** Primary selection changes
406

Chong Yidong's avatar
Chong Yidong committed
407 408 409 410
*** If `select-active-regions' is t, setting the mark automatically
makes the new region into the primary selection (for interaction with
other window applications).  If you enable this, you might want to
bind `mouse-yank-primary' to Mouse-2.
Stefan Monnier's avatar
Stefan Monnier committed
411

412 413
*** You can disable kill ring commands from accessing the primary
selection by setting `x-select-enable-primary' to nil.
414

Chong Yidong's avatar
Chong Yidong committed
415
** Completion changes
416

Chong Yidong's avatar
Chong Yidong committed
417 418
*** `completion-styles' can be customized to choose your favorite
completion style.
419

Chong Yidong's avatar
Chong Yidong committed
420
*** The default completion styles include a form of partial-completion.
421

Chong Yidong's avatar
Chong Yidong committed
422 423
*** The new command `minibuffer-force-complete' chooses one of the
possible completions, rather than stopping at the common prefix.
Glenn Morris's avatar
Glenn Morris committed
424

425 426 427
*** `completion-auto-help' can be set to `lazy' to list the
completions only if you repeat the completion.  This was already
supported in `partial-completion-mode'.
Thien-Thi Nguyen's avatar
Thien-Thi Nguyen committed
428

Chong Yidong's avatar
Chong Yidong committed
429 430 431 432 433 434
** Continuation lines can be wrapped at word boundaries
(word-wrapping) instead of the right window edge.  The new per-buffer
variable `word-wrap', if non-nil turns on word-wrapping.  Word
wrapping does not take place if continuation lines are not shown,
e.g. if truncate-lines is non-nil.

435 436 437 438 439 440 441 442 443
** Window management changes

*** truncate-partial-width-windows now accepts integer values, which
specify a minimum window width for partial-width windows, below which
lines are truncated.  The default has been changed to 30.

*** The new command balance-windows-area balances windows both
vertically and horizontally.

Chong Yidong's avatar
Chong Yidong committed
444
** Miscellaneous changes:
445

Chong Yidong's avatar
Chong Yidong committed
446 447 448
*** C-l is bound to the new command recenter-top-bottom, rather than recenter.
This moves the current line to window center, top and bottom on
successive invokations.
Michael Olson's avatar
Michael Olson committed
449

Chong Yidong's avatar
Chong Yidong committed
450
*** scroll-preserve-screen-position also preserves the column position.
Michael Olson's avatar
Michael Olson committed
451

Chong Yidong's avatar
Chong Yidong committed
452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468
*** If `yank-pop-change-selection' is t, rotating the kill ring also
updates the selection or clipboard to the current yank, just as M-w
would do so with the text it copies to the kill ring.

+++
*** C-M-% now shows replacement as it would look in the buffer, with
`\N' and `\&' substituted according to the match.  Old behavior can be
restored by customizing `query-replace-show-replacement'.

*** The command shell prompts for the default directory, when it is
called with a prefix and the default directory is a remote file name.
This is because some file name handlers (like ange-ftp) are not able to
run processes remotely.

*** The new command kill-matching-buffers kills buffers whose name
matches a regexp.

469 470
*** The new commands `pp-macroexpand-expression' and
`pp-macroexpand-last-sexp' pretty-print macro expansions.
Michael Albinus's avatar
Michael Albinus committed
471

Chong Yidong's avatar
Chong Yidong committed
472 473

* New Modes and Packages in Emacs 23.1
474

Chong Yidong's avatar
Chong Yidong committed
475 476
** FIXME add details of new packages imported from lisp/gnus.
[Maybe some information from doc/misc/gnus-coding.texi can be reused]
477

478 479 480 481
** Auto Composition Mode is a minor mode that composes characters
automatically when they are displayed.  It is globally on by default.
It uses `auto-composition-function' (default `auto-compose-chars').

Chong Yidong's avatar
Chong Yidong committed
482
** Bubbles, a new game, is similar to SameGame.
483

484 485
** bug-reference.el provides clickable links to bug reports.

486
** copyright.el provides utilities for updating copyright notices in files.
Chong Yidong's avatar
Chong Yidong committed
487 488 489

** dbus.el provides D-Bus language bindings.
D-Bus is an inter-process communication mechanism for applications
490
residing on the same host.  See the manual for details.
Chong Yidong's avatar
Chong Yidong committed
491

492 493 494
** Doc View Mode allows viewing of PDF, PostScript and DVI documents.
One can also search for a regular expression in the document.  For
details, see the commentary in doc-view.el.
Chong Yidong's avatar
Chong Yidong committed
495

496 497 498 499
** EasyPG provides an interface to the GNU Privacy Guard (GnuPG).
It includes a GnuPG keyring browser, cryptographic operations on
regions and files, and automatic encryption of *.gpg files.  For
details, see the EasyPG Assistant User's Manual.
Chong Yidong's avatar
Chong Yidong committed
500 501 502 503 504 505 506

** json.el is a library for parsing and generating JSON
(JavaScript Object Notation), a lightweight data-interchange format.

** linum.el is a new minor mode to display line numbers for the
current buffer.

507 508 509 510 511 512
** mairix.el is an interface to mairix, a free tool for indexing and
searching locally stored mail.  It allows you to query mairix and
display the search results with Rmail, Gnus and VM.  Note that there
is an existing Gnus back end, nnmairix.el, which should be used with
Maildir/MH setups.

513
** minibuffer-depth-indicate-mode shows the minibuffer depth in the prompt.
Chong Yidong's avatar
Chong Yidong committed
514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537

** nXML Mode
This is a new mode for editing XML documents.  It allows a schema to
be associated with the XML document being edited, using Relax NG as
the schema language.  The schema is used to provide two key features:

*** Continuous validation.  nXML validates as you type, highlighting
any invalid parts of your document.

*** Completion.  nXML can assist you in entering an element name,
attribute name or data value by using information about what is
allowed by the schema in that context.

** proced.el provides a Dired-like interface for operating on processes.
Proced makes an Emacs buffer containing a listing of the current
processes (using ps(1)).  You can use the normal Emacs commands to
move around in this buffer, and special Proced commands to operate on
the processes listed.

** Remember Mode is a mode for jotting down things to remember.
Notes can be saved to a Diary file.  For details, see the Remember
Manual.

** RST mode is a major mode for editing ReSTructured-Text files.
538

Chong Yidong's avatar
Chong Yidong committed
539
+++
Chong Yidong's avatar
Chong Yidong committed
540 541 542 543 544
** Visual Line mode provides support for editing by visual lines.
It turns on word-wrapping in the current buffer, and rebinds C-a, C-e,
and C-k to commands that operate by visual lines instead of logical
lines.  This is a more reliable replacement for longlines-mode.

Michael Albinus's avatar
Michael Albinus committed
545 546 547 548
** xesam.el is an implementation of Xesam, an interface to (desktop)
search engines like Beagle, Strigi, and Tracker.  The Xesam API
requires D-Bus for communication.

Chong Yidong's avatar
Chong Yidong committed
549 550 551 552 553
** zeroconf.el offers service discovery and service publishing
interfaces according to the zeroconf specification.  It communicates
with Avahi, a zeroconf implementation, via D-Bus messages on systems
which have installed this software.

554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667
** A new `whitespace' package has been installed, and the pre-existing one
renamed to `old-whitespace'.
Now, besides reporting bogus blanks, whitespace package has a minor mode and a
global minor mode to visualize blanks (TAB, (HARD) SPACE and NEWLINE).  The
visualization is made via faces and/or display table.

The main commands are `whitespace-mode', `whitespace-toggle-options',
`global-whitespace-mode' and `global-whitespace-toggle-options'.

There are also the following useful commands: `whitespace-newline-mode',
`global-whitespace-newline-mode', `whitespace-report',
`whitespace-report-region', `whitespace-cleanup' and
`whitespace-cleanup-region'.

It has the following hook variables: `whitespace-mode-hook',
`global-whitespace-mode-hook' and `whitespace-load-hook'.

It has the following options: `whitespace-style', `whitespace-action',
`whitespace-line-column', `whitespace-display-mappings' and
`whitespace-global-modes'.

It has the following faces: `whitespace-space', `whitespace-hspace',
`whitespace-tab', `whitespace-newline', `whitespace-trailing',
`whitespace-line', `whitespace-space-before-tab', `whitespace-indentation',
`whitespace-empty' and `whitespace-space-after-tab'.

It has the following regexp options: `whitespace-space-regexp',
`whitespace-hspace-regexp', `whitespace-tab-regexp',
`whitespace-trailing-regexp', `whitespace-space-before-tab-regexp',
`whitespace-indentation-regexp', `whitespace-empty-at-bob-regexp',
`whitespace-empty-at-eob-regexp' and `whitespace-space-after-tab-regexp'.

The `whitespace-style' option specifies which kind of blanks should be
visualized.  It's a list containing some or all of the following values:

trailing	trailing blanks are visualized via faces.

tabs		TABs are visualized via faces.

spaces		SPACEs and HARD SPACEs are visualized via faces.

lines		lines whose have columns beyond `whitespace-line-column' are
		highlighted via faces.
		Whole line is highlighted.
		It has precedence over `lines-tail' (see below).

lines-tail	lines whose have columns beyond `whitespace-line-column' are
		highlighted via faces.
		But only the part of line which goes beyond
		`whitespace-line-column' column.
		It has effect only if `lines' (see above) is not present in
		`whitespace-style'.

newline		NEWLINEs are visualized via faces.

empty		empty lines at beginning and/or end of buffer are visualized
		via faces.

indentation::tab	8 or more SPACEs at beginning of line are visualized
			via faces.

indentation::space	TABs at beginning of line are visualized via faces.

indentation	8 or more SPACEs at beginning of line are visualized, if
		`indent-tabs-mode' (which see) is non-nil; otherwise, TABs at
		beginning of line are visualized via faces.

space-after-tab::tab	8 or more SPACEs after a TAB are visualized via faces.

space-after-tab::space	TABs are visualized when occurs 8 or more SPACEs after
			a TAB via faces.

space-after-tab		8 or more SPACEs after a TAB are visualized, if
			`indent-tabs-mode' (which see) is non-nil; otherwise,
			the TABs are visualized via faces.

space-before-tab::tab	SPACEs before TAB are visualized via faces.

space-before-tab::space	TABs are visualized when occurs SPACEs before TAB via
			faces.

space-before-tab	SPACEs before TAB are visualized, if `indent-tabs-mode'
			(which see) is non-nil; otherwise, the TABs are
			visualized via faces.

space-mark	SPACEs and HARD SPACEs are visualized via display table.

tab-mark	TABs are visualized via display table.

newline-mark	NEWLINEs are visualized via display table.

Any other value is ignored.

The `whitespace-action' option specifies which action is taken when a buffer is
visited, killed or written.  It's a list containing some or all of the
following values:

nil		no action is taken.

cleanup		cleanup any bogus whitespace always when local whitespace is
		turned on.  See `whitespace-cleanup' and
		`whitespace-cleanup-region'.

report-on-bogus	report if there is any bogus whitespace always when local
		whitespace is turned on.

auto-cleanup	cleanup any bogus whitespace when buffer is written or killed.
		See `whitespace-cleanup' and `whitespace-cleanup-region'.

abort-on-bogus	abort if there is any bogus whitespace and the buffer is
		written or killed.

Any other value is treated as nil.

Chong Yidong's avatar
Chong Yidong committed
668 669 670

* Changes in Specialized Modes and Packages in Emacs 23.1

671
** Diff mode
Dan Nicolaescu's avatar
Dan Nicolaescu committed
672 673
*** New function `diff-show-trailing-whitespaces' can be used to show
trailing whitespace problems in the modified lines of a diff buffer.
674

Chong Yidong's avatar
Chong Yidong committed
675
** Abbrev has been rewritten in Elisp and extended with more flexibility.
Stefan Monnier's avatar
Stefan Monnier committed
676
*** New functions: abbrev-get, abbrev-put, abbrev-table-get, abbrev-table-put,
677
    abbrev-table-p, abbrev-insert, abbrev-table-menu.
Stefan Monnier's avatar
Stefan Monnier committed
678 679 680 681 682 683
*** Special hook `abbrev-expand-functions' obsoletes `pre-abbrev-expand-hook'.
*** `make-abbrev-table', `define-abbrev', `define-abbrev-table' all take
    extra arguments for arbitrary properties.
*** New variable `abbrev-minor-mode-table-alist'.
*** `local-abbrev-table' can hold a list of abbrev-tables.
*** Abbrevs have now the following special properties:
684
    `:count', `:system', `:enable-function', `:case-fixed'.
Stefan Monnier's avatar
Stefan Monnier committed
685 686 687 688
*** Abbrev-tables have now the following special properties:
    `:parents', `:case-fixed', `:enable-function', `:regexp',
    `abbrev-table-modiff'.

Chong Yidong's avatar
Chong Yidong committed
689 690 691
** Apropos
*** `apropos-library' describes the elements defined in a given library.
*** Set `apropos-compact-layout' is you want a more compact (but wider) layout.
Martin Rudalics's avatar
Martin Rudalics committed
692

Chong Yidong's avatar
Chong Yidong committed
693
** Archive Mode has basic support to browse Rar archives.
Martin Rudalics's avatar
Martin Rudalics committed
694

Chong Yidong's avatar
Chong Yidong committed
695
** BibTeX mode
Juri Linkov's avatar
Juri Linkov committed
696

Chong Yidong's avatar
Chong Yidong committed
697
*** New command `bibtex-initialize' (re)initializes BibTeX buffers.
Juri Linkov's avatar
Juri Linkov committed
698

Chong Yidong's avatar
Chong Yidong committed
699 700
*** New `bibtex-entry-format' options `whitespace', `braces', and
`string', disabled by default.
Juri Linkov's avatar
Juri Linkov committed
701

Chong Yidong's avatar
Chong Yidong committed
702 703
*** New variable `bibtex-cite-matcher-alist' contains rules to
identify cited keys in BibTeX entries, used by `bibtex-find-crossref'.
704

Chong Yidong's avatar
Chong Yidong committed
705
*** Command `bibtex-url' allows multiple URLs per entry.
Glenn Morris's avatar
Glenn Morris committed
706

Chong Yidong's avatar
Chong Yidong committed
707
** Calendar and diary
Juri Linkov's avatar
Juri Linkov committed
708

Chong Yidong's avatar
Chong Yidong committed
709 710 711 712 713
+++
*** There is a new date style, `iso', essentially year/month/day.
The variable `european-calendar-style' is obsolete - use `calendar-date-style'.
Similarly, the commands `american-calendar' and `european-calendar'
should be replaced by `calendar-set-date-style'.
Stefan Monnier's avatar
Stefan Monnier committed
714

Chong Yidong's avatar
Chong Yidong committed
715 716 717 718 719 720 721 722
+++
*** The calendar namespace has been rationalized.
All functions and variables now begin with a `calendar-', `diary-', or
`holiday-' prefix.  The various calendar systems have secondary
prefixes, eg `calendar-french-'.  The old names you are likely to use
directly still exist, for the time being, as aliases, but please start
using the new names.

723
+++
724 725 726 727 728
*** The whitespace in the calendar layout can be customized.
See the variables:
calendar-left-margin, calendar-intermonth-spacing, calendar-column-width,
calendar-day-header-width, and calendar-day-digit-width.

729
+++
730 731 732
*** Text (e.g. ISO weeks) can be displayed between the calendar months.
See the variables calendar-intermonth-header and calendar-intermonth-text.

733
+++
Chong Yidong's avatar
Chong Yidong committed
734 735 736
*** The function `holiday-chinese' computes holidays on the Chinese calendar.
It has been used to add items to the list `holiday-oriental-holidays'.

737
---
Chong Yidong's avatar
Chong Yidong committed
738 739
*** `diary-remind' accepts a negative number -DAYS as a shorthand for
the list (1 2 ... DAYS).
740

741 742 743 744 745 746 747 748
** Change Log mode

*** The new command C-c C-f (change-log-find-file) finds the file
associated with the current log entry.

*** The new command C-c C-c (change-log-goto-source) goes to the
source code associated with a log entry.

Dan Nicolaescu's avatar
Dan Nicolaescu committed
749 750 751 752 753 754 755
** Compile and grep modes

*** The mode-line entry for the *compilation* and *grep* buffer is color coded.
It has different colors for to show that: (a) the command is still
running, (b) successful completion, (c) error.

*** compilation-auto-jump-to-first-error tells `compile' to jump to
756 757
the first error encountered during compilations.

Dan Nicolaescu's avatar
Dan Nicolaescu committed
758 759 760 761
*** The `cc' alias for C++ files in `grep-file-aliases' has been
improved. `hh' can be used to match C++ header files and `cchh' both
C++ sources and headers.

Chong Yidong's avatar
Chong Yidong committed
762
** Custom
763
+++
Chong Yidong's avatar
Chong Yidong committed
764
*** defcustom accepts new keyword arguments, `:safe' and `:risky', which
765 766
set a variable's `safe-local-variable' and `risky-local-variable' property.

Chong Yidong's avatar
Chong Yidong committed
767
** Diff mode
768

Chong Yidong's avatar
Chong Yidong committed
769 770
*** diff-refine-hunk highlights word-level details of changes in a diff hunk.
It's used automatically as you move through hunks, see
771
diff-auto-refine-mode.  It is bound to `C-c C-b'.
772

Chong Yidong's avatar
Chong Yidong committed
773 774 775
*** diff-add-change-log-entries-other-window iterates through the diff
buffer and tries to create ChangeLog entries for each change.
It is bound to `C-x 4 A'.
776

777 778 779 780 781 782
** Dired

*** In Dired, C-x C-q now runs the command wdired-change-to-wdired-mode,
and C-x C-q in wdired-mode exits it with asking a question about
saving changes.

783 784 785 786 787
*** `&' runs the command `dired-do-async-shell-command' that executes
the command asynchronously without the need to manually add ampersand
to the end of the command.  Its output appears in the buffer `*Async Shell
Command*'.

788 789 790
*** `M-s f C-s' and `M-s f M-C-s' run Isearch that matches only at file names.
When a new user option `dired-isearch-filenames' is non-nil, then even
ordinary Isearch started with `C-s' and `C-M-s' matches only at file names
791 792
in the Dired buffer.  You can toggle file names matching on or off
by typing `M-s f' in Isearch mode.
793

Juri Linkov's avatar
Juri Linkov committed
794 795 796 797
*** `M-s a C-s' and `M-s a M-C-s' run multi-file Isearch on the marked files.
They visit the first marked file in the sequence and display the usual Isearch
prompt for a string or a regexp where all Isearch commands are available.

798 799 800 801 802 803 804 805
*** `Q' in Dired provides two new keys for multi-file replacement.
The upper case key `Y' replaces all remaining matches in all remaining files
with no more questions.  The upper case key `N' stops doing replacements
in the current file and skips to the next file.  These multi-file keys
are available for all commands that use `tags-query-replace'
including `dired-do-query-replace-regexp', `vc-dir-query-replace-regexp',
`reftex-query-replace-document'.

Chong Yidong's avatar
Chong Yidong committed
806 807
** Fortran
*** The variable `fortran-line-length' can change the fixed-form line-length.
Dan Nicolaescu's avatar
Dan Nicolaescu committed
808

Chong Yidong's avatar
Chong Yidong committed
809 810
*** In Fortran mode, M-; is now bound to the standard comment-dwim,
rather than fortran-indent-comment.
Dan Nicolaescu's avatar
Dan Nicolaescu committed
811

Chong Yidong's avatar
Chong Yidong committed
812 813
+++
*** (The increasingly misnamed) F90 mode supports Fortran 2003 syntax.
Dan Nicolaescu's avatar
Dan Nicolaescu committed
814

Chong Yidong's avatar
Chong Yidong committed
815
** Gnus
816

Chong Yidong's avatar
Chong Yidong committed
817 818 819
*** The Gnus package has been updated
There are many news features, bug fixes and improvements; see the file
GNUS-NEWS or the node "No Gnus" in the Gnus manual for details.
Eric S. Raymond's avatar
Eric S. Raymond committed
820

Chong Yidong's avatar
Chong Yidong committed
821 822 823 824
*** In Emacs 23, Gnus uses Emacs' new internal coding system `utf-8-emacs' for
saving articles drafts and ~/.newsrc.eld.  These file may not be read
correctly in Emacs 22 and below.  If you want to Gnus across different Emacs
versions, you may set `mm-auto-save-coding-system' to `emacs-mule'.
825

826 827 828 829 830
*** Password are consistently loaded through `auth-source'
Gnus can use `auth-source' for POP and IMAP passwords.  Also see that
`smtpmail' and `url' support `auth-source' for SMTP and HTTP/HTTPS/RSS
authentication respectively.

Chong Yidong's avatar
Chong Yidong committed
831 832 833 834 835 836 837
** Help mode
*** New macro `with-help-window' should set up help windows better
than `with-output-to-temp-buffer' with `print-help-return-message'.
*** New option `help-window-select' permits to customize whether help
window shall be automatically selected when invoking help.
*** New variable `help-window-point-marker' permits to specify new
position of point in help window (for example in `view-lossage').
838

Chong Yidong's avatar
Chong Yidong committed
839
** Isearch
840

Juri Linkov's avatar
Juri Linkov committed
841 842 843 844 845 846 847 848 849 850
*** New command `isearch-forward-word' bound globally to `M-s w' starts
incremental word search.  New command `isearch-toggle-word' bound to the
same key `M-s w' in Isearch mode toggles word searching on or off
while Isearch is active.

*** New command `isearch-highlight-regexp' bound to `M-s h r' in Isearch
mode runs `highlight-regexp' (`hi-lock-face-buffer') with the current
search string as its regexp argument.  The same key `M-s h r' and
other keys on the `M-s h' prefix are bound globally to the command
`highlight-regexp' and other hi-lock commands.
851

Juri Linkov's avatar
Juri Linkov committed
852 853 854
*** New command `isearch-occur' bound to `M-s o' in Isearch mode
runs `occur' with the current search string.  The same key `M-s o'
is bound globally to the command `occur'.
855

Juri Linkov's avatar
Juri Linkov committed
856 857
*** Isearch can now search through multiple ChangeLog files.
When running Isearch in a ChangeLog file, if the search fails,
Chong Yidong's avatar
Chong Yidong committed
858 859
then another C-s tries searching the previous ChangeLog,
if there is one (e.g. go from ChangeLog to ChangeLog.12).
860
This is enabled if multi-isearch-search is non-nil.
861

862
*** Two new commands to start Isearch on a list of marked buffers
Juri Linkov's avatar
Juri Linkov committed
863 864
for buff-menu.el and ibuffer.el are bound to the keys `M-s a C-s' and
`M-s a M-C-s'.
865

Juri Linkov's avatar
Juri Linkov committed
866
*** The part of an Isearch that failed to match is highlighted in `isearch-fail'
Chong Yidong's avatar
Chong Yidong committed
867
face.
868

Juri Linkov's avatar
Juri Linkov committed
869 870 871 872
*** `C-h C-h' in Isearch mode displays isearch-specific Help screen,
`C-h b' displays all Isearch key bindings, `C-h k' displays the full
documentation of the given Isearch key sequence, `C-h m' displays
documentation of Isearch mode.  All the rest Help commands exit Isearch mode
Chong Yidong's avatar
Chong Yidong committed
873
and execute their global definitions.
Glenn Morris's avatar
Glenn Morris committed
874

Chong Yidong's avatar
Chong Yidong committed
875 876
*** When started in the minibuffer, Isearch searches in the minibuffer
history.  See `Minibuffer changes', above.
Roland Winkler's avatar
Roland Winkler committed
877

Chong Yidong's avatar
Chong Yidong committed
878 879 880
** Python
*** The file etc/emacs.py now supports both Python 2 and 3, meaning
that either version can be used as inferior Python by python.el.
Roland Winkler's avatar
Roland Winkler committed
881

Chong Yidong's avatar
Chong Yidong committed
882 883 884 885
*** Python mode now has `pdbtrack' functionality.  When using pdb to
debug a Python program, pdbtrack notices the pdb prompt and displays
the source file and line that the program is stopped at, much the same
way as gud-mode does for debugging C programs with gdb.
Roland Winkler's avatar
Roland Winkler committed
886

Chong Yidong's avatar
Chong Yidong committed
887
** T-mouse Mode
Roland Winkler's avatar
Roland Winkler committed
888

Chong Yidong's avatar
Chong Yidong committed
889 890 891 892 893
*** If the gpm mouse server is running and t-mouse-mode is enabled,
Emacs uses a Unix socket in a GNU/Linux console to talk to server,
rather than faking events using the client program mev.  This C level
approach provides mouse highlighting and help echoing in the
minibuffer.
Roland Winkler's avatar
Roland Winkler committed
894

895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923
+++
** Tramp

*** New connection methods.
The new methods "plinkx", "plink2", "psftp", "sftp" and "fish" have
been introduced.  There are also new so-called gateway methods
"tunnel" and "socks".

*** Multihop syntax has been removed.
The pseudo-method "multi" has been removed.  Instead of, multi hops
can be specified by the new variable `tramp-default-proxies-alist'.

*** More default settings.
Default values can be set via the variables `tramp-default-user',
`tramp-default-user-alist' and `tramp-default-host'.

*** Connection information is cached.
In order to reduce connection setup, information about used
connections are kept persistent in a file.  The name of this file is
defined in the variable `tramp-persistency-file-name'.

*** Control of remote processes.
Running processes on a remote host can be controlled by settings in
`tramp-remote-path' and `tramp-remote-process-environment'.

*** Success of remote copy is checked.
When the variable `file-precious-flag' is set, the success of a remote
file copy is checked via the file's checksum.

924 925 926 927
*** Passwords can be read from an authentification file.
Tramp uses the package `auth-source' to read passwords from a file, if
necessary.

928
** VC and related modes
929

Chong Yidong's avatar
Chong Yidong committed
930 931 932 933 934
*** VC now supports applying VC operations to a set of files at a time.
This enables VC to work much more effectively with changeset-oriented
version-control systems such as Subversion, GNU Arch, Mercurial, Git
and Bzr.  VC will now pass a multiple-file commit to these systems as
a single changeset.
935

Chong Yidong's avatar
Chong Yidong committed
936
*** vc-dir is a new command that displays file names and their VC
937 938
status.  It allows to apply various VC operations to a file, a
directory or a set of files/directories.
Glenn Morris's avatar
Glenn Morris committed
939

Chong Yidong's avatar
Chong Yidong committed
940
*** Clicking on the VC mode-line entry now pops the VC menu.
Glenn Morris's avatar
Glenn Morris committed
941

Chong Yidong's avatar
Chong Yidong committed
942
*** The VC mode-line entry now has a tooltip that explains the VC file status.
943

Chong Yidong's avatar
Chong Yidong committed
944 945
*** In VC Annotate mode, for VC systems that support changesets, you can
see the diff for the whole changeset (not only for the current file)
Dan Nicolaescu's avatar
Dan Nicolaescu committed
946
by typing the D key.
947

Dan Nicolaescu's avatar
Dan Nicolaescu committed
948
*** In VC Annotate mode, you can type v to toggle the annotation visibility.
949

Chong Yidong's avatar
Chong Yidong committed
950 951
*** In VC Annotate mode, you can type f to show the file revision on
the current line.
Nick Roberts's avatar
Nick Roberts committed
952

Dan Nicolaescu's avatar
Dan Nicolaescu committed
953 954 955 956 957
*** In VC Annotate mode, for VC systems that support changesets, you
can see the diff for the whole changeset (not only for the current
file) by typing the D key or using the "Show changeset diff of
revision at line" menu entry.

Chong Yidong's avatar
Chong Yidong committed
958 959 960
*** Asynchronous VC commands display [Waiting...] in the mode-line
of the corresponding buffer as long as the asynchronous process is
active.
Reiner Steib's avatar
Reiner Steib committed
961

Chong Yidong's avatar
Chong Yidong committed
962 963 964
*** Log entries can be modified using the key "e" in log-view.
For now only CVS, RCS, SCCS and SVN support this functionality.
This is done by the `modify-change-comment' backend function.
965

Chong Yidong's avatar
Chong Yidong committed
966 967 968
*** In log-view-mode, for VC systems that support changesets, you can
see the diff for the whole changeset (not only for the current file)
by typing the D key or using the "Changeset Diff" menu entry.
Reiner Steib's avatar
Reiner Steib committed
969

970 971 972 973
*** In Log Edit mode,  C-c C-d now shows the diff for the files involved.

*** vc-git supports the "git grep" command.

Chong Yidong's avatar
Chong Yidong committed
974 975
*** VC Support for Meta-CVS has been removed for lack of maintainer able
to update it to the new VC.
Reiner Steib's avatar
Reiner Steib committed
976

977 978 979
** Miscellaneous

*** comint-mode uses `start-file-process' now (see Lisp Changes).
980 981 982
If `default-directory' is a remote file name, subprocesses are started
on the corresponding remote system.

Chong Yidong's avatar
Chong Yidong committed
983 984
*** Eldoc highlights the function argument under point
with the face `eldoc-highlight-function-argument'.
985

Chong Yidong's avatar
Chong Yidong committed
986
*** In Etags, the --members option is now the default.
Glenn Morris's avatar
Glenn Morris committed
987
Use --no-members if you want the old default behavior of not tagging
Chong Yidong's avatar
Chong Yidong committed
988
struct members in C, members variables in C++ and variables in PHP.
Glenn Morris's avatar
Glenn Morris committed
989

Chong Yidong's avatar
Chong Yidong committed
990 991 992 993 994 995 996
*** The `gdb' command only works with the graphical interface now.
Use `gud-gdb' if you want the (old) text command mode.

*** goto-address.el provides two new minor modes, goto-address-mode and
goto-address-prog-mode, which buttonize URLS and email addresses.

*** The new command `eshell/info' runs info in an eshell buffer.
Glenn Morris's avatar
Glenn Morris committed
997

Glenn Morris's avatar
Glenn Morris committed
998 999 1000
*** The new variable `ffap-rfc-directories' specifies a list of local
directories in which `ffap-rfc' will first search for RFCs.

Chong Yidong's avatar
Chong Yidong committed
1001 1002 1003 1004 1005 1006 1007 1008
*** hide-ifdef-mode allows shadowing ifdef-blocks instead of hiding them.
See option `hide-ifdef-shadow' and function `hide-ifdef-toggle-shadowing'.

*** `icomplete-prospects-height' now supercedes `icomplete-prospects-length'.

*** Info displays breadcrumbs in the header of the page.
See Info-breadcrumbs-depth to control it.

Glenn Morris's avatar
Glenn Morris committed
1009
*** net-utils has an `iwconfig' command, similar to the existing `ifconfig'.
Dan Nicolaescu's avatar
Dan Nicolaescu committed
1010
It is used to configure wireless interfaces.
Glenn Morris's avatar
Glenn Morris committed
1011

Chong Yidong's avatar
Chong Yidong committed
1012 1013 1014 1015 1016
*** The pcmpl-unix package supports hostname completion for ssh and scp.

*** sgml-electric-tag-pair-mode lets you simultaneously edit matched tag pairs.

*** smerge-refine highlights word-level details of changes in conflict.
1017 1018
It's used automatically as you move through conflicts, see
smerge-auto-refine-mode.
Chong Yidong's avatar
Chong Yidong committed
1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036

*** talk.el has been extended for multiple tty support.

*** A new command `display-time-world' has been added to the Time
package.  It creates a buffer with an updating time display using
several time zones.

*** The appearance of superscript and subscript in TeX is more customizable.
See the documentation of the variables: tex-fontify-script,
tex-font-script-display, tex-suscript-height-ratio, and
tex-suscript-height-minimum.

*** view-remove-frame-by-deleting is now by default t
since users found iconification of view-mode frames distracting.

*** WoMan tries to add locale-specific manual page directories to the
search path.  This can be disabled by setting `woman-locale' to nil.

1037 1038

* Changes in Emacs 23.1 on non-free operating systems
Juri Linkov's avatar
Juri Linkov committed
1039

1040 1041 1042 1043 1044 1045
** Case is now considered significant in completion on MS-Windows.
The default value of `completion-ignore-case' is now nil on
MS-Windows, the same as it is for other operating systems.  The
variable doesn't apply to reading a file name -- in that case Emacs
heeds `read-file-name-completion-ignore-case' instead.

Jason Rumney's avatar
Jason Rumney committed
1046 1047 1048
---
** IPv6 is supported on MS-Windows.
Emacs now supports IPv6 on Windows XP and later, and earlier versions
Jason Rumney's avatar
Jason Rumney committed
1049
of Windows with third party IPv6 stacks installed.  In Emacs 22, IPv6 was
Jason Rumney's avatar
Jason Rumney committed
1050 1051 1052
supported on other platforms, but not on Windows due to using the winsock
1.1 header file, even though Emacs was linking to the winsock 2 library.

1053
---
1054 1055
** Busy cursor (hourglass) now displays on MS-Windows.
When Emacs is busy, an hourglass mouse cursor is displayed on Windows.
Jason Rumney's avatar
Jason Rumney committed
1056 1057 1058 1059 1060 1061 1062 1063
In Emacs 22 only X supported the busy cursor.

---
** Battery status is available on MS-Windows
Emacs can now display the battery status in the mode-line when enabled with
display-battery-mode or from the Options menu.  More verbose battery
information is also available with the command `battery'.  In Emacs 22
battery status was supported only on GNU/Linux and Mac.
1064

Jason Rumney's avatar
Jason Rumney committed
1065 1066 1067 1068