GNU Emacs NEWS -- history of user-visible changes.
-Copyright (C) 2010 Free Software Foundation, Inc.
+Copyright (C) 2010-2011 Free Software Foundation, Inc.
See the end of the file for license conditions.
Please send Emacs bug reports to bug-gnu-emacs@gnu.org.
* Startup Changes in Emacs 24.1
** The --unibyte, --multibyte, --no-multibyte, and --no-unibyte
-command line arguments no longer have any effect. (They were declared
-obsolete in Emacs 23.)
+command line arguments, and the EMACS_UNIBYTE environment variable, no
+longer have any effect. (They were declared obsolete in Emacs 23.)
+
+** New command line option `--no-site-lisp' removes site-lisp directories
+from load-path. -Q now implies this.
\f
* Changes in Emacs 24.1
off by customizing x-gtk-use-system-tooltips.
** Lucid menus and dialogs can display antialiased fonts if Emacs is built
-with Xft. To change font, use X resource faceName, for example:
-Emacs.pane.menubar.faceName: Courier-12
-Set faceName to none and use font to use the old X fonts.
+with Xft. To change font, use the X resource font, for example:
+Emacs.pane.menubar.font: Courier-12
+
++++
+** Enhanced support for characters that have no glyphs in available fonts
+If a character has no glyphs in any of the available fonts, Emacs by
+default will display it either as a hexadecimal code in a box or as a
+thin 1-pixel space. In addition to these two methods, Emacs can
+display these characters as empty box, as an acronym, or not display
+them at all. To change how these characters are displayed, customize
+the variable `glyphless-char-display-control'.
+
+On character terminals these methods are used for characters that
+cannot be encoded by the `terminal-coding-system'.
** On graphical displays, the mode-line no longer ends in dashes.
*** Tramp offers handlers for file-selinux-context and set-file-selinux-context
for remote machines which support SELinux.
++++
+** The function format-time-string now supports the %N directive, for
+higher-resolution time stamps.
+
** The function kill-emacs is now run upon receipt of the signals SIGTERM
and SIGHUP, and upon SIGINT in batch mode.
`package-enable-at-startup' to nil. To change which packages are
loaded, customize `package-load-list'.
+** An Emacs Lisp testing tool is now included.
+Emacs Lisp developers can use this tool to write automated tests for
+their code. See the ERT info manual for details.
+
** Custom Themes
*** `M-x customize-themes' lists Custom themes which can be enabled.
is to search in `custom-theme-directory', followed by a built-in theme
directory named "themes/" in `data-directory'.
+*** New option `custom-safe-themes' records known-safe theme files.
+If a theme is not in this list, Emacs queries before loading it, and
+offers to save the theme to `custom-safe-themes' automatically. By
+default, all themes included in Emacs are treated as safe.
+
** The user option `remote-file-name-inhibit-cache' controls whether
the remote file-name cache is used for read access.
** The standalone programs lib-src/digest-doc and sorted-doc have been
replaced with Lisp commands `doc-file-to-man' and `doc-file-to-info'.
+** The variable `focus-follows-mouse' now always defaults to nil.
+
\f
* Editing Changes in Emacs 24.1
-** completion-at-point is now an alias for complete-symbol.
++++
+** There is a new command `count-words-region', which does what you expect.
+
+** completion-at-point now handles tags and semantic completion.
+
+** The default value of `backup-by-copying-when-mismatch' is now t.
+
+** The command `just-one-space' (C-SPC), if given a negative argument,
+also deletes newlines around point.
** Deletion changes
** Selection changes.
-The default handling of clipboard and primary selections has been
-changed to conform with other X applications. The exact changes are
-described below; in short, mouse commands to select and paste text now
-use the primary selection, while all other commands for killing and
-yanking text now use the clipboard.
-
-*** Merely selecting text (e.g. with drag-mouse-1) does not add it to
-the kill-ring. On systems with a primary selection separate from the
-clipboard (such as X), the selected text is put in the primary
-selection.
+The default handling of clipboard and primary selections was changed
+to conform with modern X applications. In short, most commands for
+killing and yanking text now use the clipboard, while mouse commands
+use the primary selection.
-*** mouse-2 is now bound to `mouse-yank-primary', which pastes from
-the primary selection regardless of the contents of the kill-ring.
+In the following, we provide a list of these changes, followed by a
+list of steps to get the old behavior back if you prefer that.
-*** Commands that kill text or copy it to the kill-ring (M-w, C-w,
-C-k, etc.) also put the killed text into the clipboard. This change
-also means that the "Copy", "Cut", and "Paste" items in the "Edit"
-menu are now exactly equivalent to, respectively M-w, C-w, and C-y.
+*** `mouse-drag-copy-region' now defaults to nil.
+*** `select-active-regions' now defaults to t.
+Merely selecting text (e.g. with drag-mouse-1) no longer puts it in
+the kill-ring. The selected text is put in the primary selection, if
+the system possesses a separate primary selection facility (e.g. X).
-*** Yank commands, such as C-y and M-y, retrieve text from the
-clipboard if it is available.
+**** `select-active-regions' also accepts a new value, `only'.
+This means to only set the primary selection for temporarily active
+regions (usually made by mouse-dragging or shift-selection);
+"ordinary" active regions, such as those made with C-SPC followed by
+point motion, do not alter the primary selection.
-*** The above changes are reflected in the following new defaults:
+*** mouse-2 is now bound to `mouse-yank-primary'.
+This pastes from the primary selection, ignoring the kill-ring.
+Previously, mouse-2 was bound to `mouse-yank-at-click'.
-**** `select-active-regions' now defaults to t.
-It also accepts a new value, `only', which means to only set the
-primary selection for temporarily active regions (usually made by
-mouse-dragging or shift-selection).
+*** `x-select-enable-clipboard' now defaults to t on all platforms.
+*** `x-select-enable-primary' now defaults to nil.
+Thus, commands that kill text or copy it to the kill-ring (such as
+M-w, C-w, and C-k) also use the clipboard---not the primary selection.
-**** `mouse-2' is now bound to `mouse-yank-primary'.
-Previously, it was bound to `mouse-yank-at-click' (which is now
-unbound by default).
+**** The "Copy", "Cut", and "Paste" items in the "Edit" menu are now
+exactly equivalent to, respectively M-w, C-w, and C-y.
-**** `x-select-enable-clipboard' now defaults to t on all platforms.
-Note that this variable was already non-nil by default on MS-Windows,
-which does not support the primary selection between applications.
+**** Note that on MS-Windows, `x-select-enable-clipboard' was already
+non-nil by default, as Windows does not support the primary selection
+between applications.
-**** `x-select-enable-primary' now defaults to nil.
-This variable exists only on X; its default value was t in previous
-versions.
+*** To return to the previous behavior, do the following:
-**** `mouse-drag-copy-region' now defaults to nil.
-
-*** To return to the previous behavior, where mouse commands use the
-clipboard, change `mouse-drag-copy-region' and (on X only)
-`x-select-enable-primary' to t. If you don't want Emacs to put the
-text into the clipboard, only to the primary selection, additionally
-set `x-select-enable-clipboard' to nil.
+**** Change `mouse-drag-copy-region' to t.
+**** Change `x-select-enable-primary' to t (on X only).
+**** Change `x-select-enable-clipboard' to nil.
+**** Bind `mouse-yank-at-click' to mouse-2.
*** Support for X cut buffers has been removed.
+** New command `rectangle-number-lines', bound to `C-x r N', numbers
+the lines in the current rectangle. With an prefix argument, this
+prompts for a number to count from and for a format string.
+
\f
* Changes in Specialized Modes and Packages in Emacs 24.1
+** The compile.el mode can be used without font-lock-mode.
+`compilation-parse-errors-function' is now obsolete.
+
+** The Landmark game is now invoked with `landmark', not `lm'.
+
+** Prolog mode has been completely revamped, with lots of additional
+functionality such as more intelligent indentation, electricty, support for
+more variants, including Mercury, and a lot more.
+
** shell-mode can track your cwd by reading it from your prompt.
Just set shell-dir-cookie-re to an appropriate regexp.
** Archive Mode has basic support to browse 7z archives.
+** browse-url has gotten a new variable that is used for mailto: URLs,
+ `browse-url-mailto-function', which defaults to `browse-url-mail'.
+
** ERC changes
*** New vars `erc-autojoin-timing' and `erc-autojoin-delay'.
The default is to decode strings that can be decoded as utf-8 as
utf-8, and do the normal `undecided' decoding for the rest.
+** Eshell changes
+
+*** The default value of eshell-directory-name is a directory named
+"eshell" in `user-emacs-directory'. If the old "~/.eshell/" directory
+exists, that is used instead.
+
** In ido-mode, C-v is no longer bound to ido-toggle-vc.
The reason is that this interferes with cua-mode.
*** An API for manipulating SQL product definitions has been added.
-** s-region.el is now declared obsolete, superceded by shift-select-mode
-enabled by default in 23.1.
+** sregex.el is now obsolete, since rx.el is a strict superset.
+** s-region.el and pc-select are now declared obsolete,
+superceded by shift-select-mode enabled by default in 23.1.
+** pc-mode.el is also declared obsolete.
** gdb-mi
*** GDB User Interface migrated to GDB Machine Interface and now
*** It is possible now, to access alternative buses than the default
system or session bus.
+*** dbus-register-{service,method,property}
+The -method and -property functions do not automatically register
+names anymore.
+
+The new function dbus-register-service registers a service known name
+on a D-Bus without simultaneously registering a property or a method.
+
** Tramp
+*** There exists a new inline access method "ksu" (kerberized su).
+
*** The following access methods are discontinued: "ssh1_old",
-"ssh2_old", "scp1_old", "scp2_old" and "fish".
+"ssh2_old", "scp1_old", "scp2_old", "imap", "imaps" and "fish".
+
+** VC and related modes
+
+*** Support for pulling on distributed version control systems.
+The vc-pull command runs a "pull" operation, if it is supported.
+This updates the current branch from upstream. A prefix argument
+means to prompt the user for specifics, e.g. a pull location.
+
+**** `vc-update' is now an alias for `vc-pull'.
+
+**** Currently supported by Bzr, Git, and Mercurial.
+
+*** Support for merging on distributed version control systems.
+The vc-merge command now runs a "merge" operation, if it is supported.
+This merges another branch into the current one. This command prompts
+the user for specifics, e.g. a merge source.
+
+**** Currently supported for Bzr, Git, and Mercurial.
+
+*** Log entries in some Log View buffers can be toggled to display a
+longer description by typing RET (log-view-toggle-entry-display).
+In the Log View buffers made by `C-x v L' (vc-print-root-log), you can
+use this to display the full log entry for the revision at point.
+
+**** Currently supported for Bzr, Git, and Mercurial.
+
+**** Packages using Log View mode can enable this functionality by
+binding `log-view-expanded-log-entry-function' to a suitable function.
+
+** Miscellaneous
+
+---
+*** `copyright-fix-years' can optionally convert consecutive years to ranges.
\f
* New Modes and Packages in Emacs 24.1
-** New global minor modes electric-pair-mode and electric-indent-mode.
+** New global minor modes electric-pair-mode, electric-indent-mode,
+and electric-layout-mode.
** pcase.el provides the ML-style pattern matching macro `pcase'.
** notifications.el provides an implementation of the Desktop
Notifications API. It requires D-Bus for communication.
+** soap-client.el supports access to SOAP web services from Emacs.
+soap-inspect.el is an interactive inspector for SOAP WSDL structures.
+
\f
* Incompatible Lisp Changes in Emacs 24.1
+** `copy-directory' now copies the source directory as a subdirectory
+of the target directory, if the latter is an existing directory. The
+new optional arg COPY-CONTENTS, if non-nil, makes the function copy
+the contents directly into a pre-existing target directory.
+
+** `compose-mail' now accepts an optional 8th arg, RETURN-ACTION, and
+passes it to the mail user agent function. This argument specifies an
+action for returning to the caller after finishing with the mail.
+This is currently used by Rmail to delete a mail window.
+
+** For mouse click input events in the text area, the Y pixel
+coordinate in the POSITION list now counts from the top of the text
+area, excluding any header line. Previously, it counted from the top
+of the header line.
+
** Remove obsolete name `e' (use `float-e' instead).
** A backquote not followed by a space is now always treated as new-style.
\f
* Lisp changes in Emacs 24.1
+** Removed the stack-trace-on-error variable.
+Also the debugger can now "continue" from an error, which means it will jump
+to the error handler as if the debugger had not been invoked instead of
+jumping all the way to the top-level.
+
+** New function `read-char-choice' reads a restricted set of characters,
+discarding any inputs not inside the set.
+
** `image-library-alist' is renamed to `dynamic-library-alist'.
The variable is now used to load all kind of supported dynamic libraries,
not just image libraries. The previous name is still available as an
triplet, instead of signalling an error if the user provides a invalid
input.
+** Tool-bars can display separators.
+Tool-bar separators are handled like menu separators in menu-bar maps,
+i.e. via menu entries of the form `(menu-item "--")'.
** Image API
*** If Emacs is compiled with libxml2 support (which is the default),
two new Emacs Lisp-level functions are defined:
-`xml-parse-html-string-internal' (which will parse "real world" HTML)
-and `xml-parse-string-internal' (which parses XML). Both return an
+`libxml-parse-html-region' (which will parse "real world" HTML)
+and `libxml-parse-xml-region' (which parses XML). Both return an
Emacs Lisp parse tree.
FIXME: These should be front-ended by xml.el.