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3870 lines
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3870 lines
151 KiB
Plaintext
GNU Emacs NEWS -- history of user-visible changes.
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Copyright (C) 2010-2021 Free Software Foundation, Inc.
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See the end of the file for license conditions.
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Please send Emacs bug reports to bug-gnu-emacs@gnu.org.
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If possible, use M-x report-emacs-bug.
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This file is about changes in Emacs version 24.
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See files NEWS.23, NEWS.22, NEWS.21, NEWS.20, NEWS.19, NEWS.18,
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and NEWS.1-17 for changes in older Emacs versions.
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You can narrow news to a specific version by calling `view-emacs-news'
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with a prefix argument or by typing C-u C-h C-n.
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* Changes in Emacs 24.5
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** This is mainly a bug-fix release, but there are some other changes.
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** The default value of `history-length' has increased to 100.
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** The variable `redisplay-dont-pause' is obsolete.
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* Changes in Specialized Modes and Packages in Emacs 24.5
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** `call-process-shell-command' and `process-file-shell-command' no longer
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take "&rest args".
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** The option `browse-url-firefox-startup-arguments' no longer has an effect.
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** ERC
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*** New option `erc-rename-buffers'.
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*** New faces `erc-my-nick-prefix-face' and `erc-nick-prefix-face'.
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*** `erc-format-@nick' displays all user modes instead of only op and voice.
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*** The display of irc commands in the current buffer has been disabled.
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*** `erc-version' now follows the Emacs version.
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** Obsolete packages
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*** cc-compat.el
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*** crisp.el (moved to elpa.gnu.org)
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*** tpu-edt.el, ws-mode.el
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These emulations of old editors are believed to be no longer relevant
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- contact emacs-devel@gnu.org if you disagree.
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*** vi.el, vip.el (try M-x viper instead)
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* Installation Changes in Emacs 24.4
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** Emacs can now be compiled with ACL (access control list) support.
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This happens by default if a suitable support library is found at
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build time, like libacl on GNU/Linux. To prevent this, use the
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configure option `--disable-acl'. See below for the features this provides.
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** Emacs can now be compiled with file notification support.
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This happens by default if a suitable system library is found at
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build time. To prevent this, use the configure option
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`--without-file-notification'. See below for file-notify features.
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This feature is not available for the Nextstep port.
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** Emacs can now be compiled with zlib support.
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This happens by default if zlib is present, which it normally is.
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To prevent this, use the configure option `--without-zlib'.
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This provides the function `zlib-decompress-region'; see below for details.
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** The configure option `--without-compress-info' has been generalized,
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and renamed to `--without-compress-install'. It now prevents compression
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of _any_ files during installation.
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** The configure option `--with-crt-dir' has been removed.
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It is no longer needed, as the crt*.o files are no longer linked specially.
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** Directories passed to configure option `--enable-locallisppath' are
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no longer created during installation.
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** Emacs for Nextstep (OS X, GNUstep) can be built with ImageMagick support.
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This requires pkg-config to be available at build time.
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* Startup Changes in Emacs 24.4
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** When initializing `load-path', an empty element in the EMACSLOADPATH
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environment variable (either leading, e.g., ":/foo"; trailing, e.g.,
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"/foo:"; or embedded, e.g., "/foo::/bar") is replaced with the default
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load-path (the one that would have been used if EMACSLOADPATH was unset).
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This makes it easier to _extend_ the load-path via EMACSLOADPATH
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(previously, EMACSLOADPATH had to specify the complete load-path,
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including the defaults). (In older versions of Emacs, an empty element
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was replaced by ".", so use an explicit "." now if that is what you want.)
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** The -L option, which normally prepends its argument to load-path,
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will instead append, if the argument begins with `:' (or `;' on MS Windows;
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i.e., `path-separator').
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** If you use either site-load.el or site-init.el to customize the dumped
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Emacs executable, any changes to `load-path' that these files make
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will no longer be present after dumping. To affect a permanent change
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to `load-path', use the `--enable-locallisppath' option of `configure'.
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** The user option `initial-buffer-choice' can now specify a function
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to set up the initial buffer.
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* Changes in Emacs 24.4
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** Support for ACLs (access control lists).
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This requires a suitable support library to be found at build time.
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On GNU/Linux, the POSIX ACL interface is used via libacl.
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On MS-Windows, the NT Security APIs are used to emulate the POSIX interface.
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ACLs are extended file attributes, used e.g. for finer-grained permissions.
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*** Emacs preserves the ACL entries of files when backing up.
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*** New functions `file-acl' and `set-file-acl' get and set file ACLs.
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** Support for menus on text-mode terminals.
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If the terminal supports a mouse, clicking on the menu bar, or on
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sensitive portions of the mode line or header line, will drop down the
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menu defined at that position. Likewise, clicking C-mouse-1, C-mouse-2, or
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C-mouse-3 on the text area will pop up the menus defined for those locations.
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If the text terminal does not support a mouse, you can activate the
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first menu-bar menu by typing F10, which invokes `menu-bar-open'.
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If you want the previous behavior, where F10 invoked `tmm-menubar',
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customize the option `tty-menu-open-use-tmm' to a non-nil value.
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(Typing M-` always invokes `tmm-menubar', even if `tty-menu-open-use-tmm'
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is nil.)
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** New option `load-prefer-newer' affects how the `load' function chooses
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the file to load. If this is non-nil, then when both .el and .elc
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versions of a file exist, and the caller did not explicitly specify
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which one to load, then the newer file is loaded. The default, nil,
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means to always load the .elc file.
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** Multi-monitor support
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*** New functions `display-monitor-attributes-list' and
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`frame-monitor-attributes' can be used to obtain information about
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each physical monitor on multi-monitor setups.
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*** The functions `display-pixel-width' and `display-pixel-height' now
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behave consistently among the platforms: they return the pixel width
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or height for all physical monitors associated with the given display
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as if they were on X. To get information for each physical
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monitor, use the new functions above. Similar notes also apply to
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`x-display-pixel-width', `x-display-pixel-height', `display-mm-width',
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`display-mm-height', `x-display-mm-width', and `x-display-mm-height'.
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** New function `zlib-decompress-region', which decompresses gzip- and
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zlib-format compressed data using built-in zlib support (if available).
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** The *Messages* buffer is created in `messages-buffer-mode',
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a new major mode, with read-only status. Any code that might create
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the *Messages* buffer should call the function `messages-buffer' to do
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so and set up the mode.
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** The cursor stops blinking after 10 blinks (by default) on X and Nextstep.
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You can change the default by customizing `blink-cursor-blinks'.
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** In keymaps where SPC scrolls forward, S-SPC now scrolls backward.
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This affects View mode, etc.
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** The default value of `make-backup-file-name-function' is no longer nil.
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Instead it defaults to a function that does what the nil value used to.
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** Help
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*** The command `apropos-variable' is renamed to `apropos-user-option'.
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`apropos-user-option' shows all user options, while `apropos-variable'
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shows all variables. When called with a universal prefix argument,
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the two commands swap their behaviors. When `apropos-do-all' is
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non-nil, they output the same results.
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*** The key `?' now describes prefix bindings, like `C-h'.
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*** The command `describe-function' has been extended for EIEIO.
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Running it on constructors will show a full description of the
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generated class. For generic functions, it will show all
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implementations together with links to the source. The old commands
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`describe-class', `describe-constructor' and `describe-generic' were
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removed.
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*** The function `quail-help' is no longer an interactive command.
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Use `C-h C-\' (`describe-input-method') instead.
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** Frame and window handling
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*** New commands `toggle-frame-fullscreen' and `toggle-frame-maximized',
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bound to <f11> and M-<f10>, respectively.
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*** New hooks `focus-in-hook', `focus-out-hook'.
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These are normal hooks run when an Emacs frame gains or loses input focus.
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*** The function `window-in-direction' now takes additional arguments
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for specifying a reference point, wrapping the selection around frame
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borders, and specifying ways to select the minibuffer window.
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*** Emacs can now change frame sizes in units of pixels, rather than
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text rows or columns. When maximizing a frame or making it fullscreen,
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remaining extra pixels are no longer given to the minibuffer, the rightmost
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fringe, or other unusable space, but are distributed among the text
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areas of the frame's windows. If the new option `frame-resize-pixelwise'
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is non-nil, all frame size changes happen pixelwise and set the
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corresponding size hints for the window manager.
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*** Emacs can now change window sizes in units of pixels.
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Mouse-dragging a mode line or window divider now changes the size of
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adjacent windows pixelwise. If the new option `window-resize-pixelwise'
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is non-nil, functions like `balance-windows-area' and `fit-window-to-buffer'
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resize windows pixelwise. Most functions for changing or accessing
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window sizes now have an additional argument that allows changes to apply,
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or values to be returned, in pixels instead of lines/columns.
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*** The functions `window-body-height' and `window-body-width' now never
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count partially visible lines or columns if called with a nil PIXELWISE
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argument.
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*** Emacs can now draw dividers between adjacent windows. To put
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dividers between side-by-side/vertically stacked windows customize the
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frame parameters `right-divider-width' and `bottom-divider-width' to
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some positive integer. You can drag dividers with the mouse (they show
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a corresponding cursor when the mouse hovers over them). You can change
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the appearance of dividers by customizing the faces `window-divider',
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`window-divider-first-pixel', and `window-divider-last-pixel'. The last
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two are useful to provide a 3D effect, or to better distinguish dividers
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from surrounding display objects.
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*** New functions to return the pixel sizes of window components, namely
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`window-scroll-bar-width', `window-mode-line-height',
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`window-header-line-height', `window-right-divider-width', and
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`window-bottom-divider-width'.
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*** The new function `window-text-pixel-size' returns the size of the
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text of a window's buffer in pixels. This allows functions like
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`fit-frame-to-buffer' and `fit-window-to-buffer' to accurately fit a
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window to its buffer as it will be displayed.
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*** `fit-window-to-buffer' can now resize windows in both dimensions.
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This behavior is controlled by the new option
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`fit-window-to-buffer-horizontally'. The new option
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`fit-frame-to-buffer' allows you to fit the window's frame to its buffer.
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*** `fit-frame-to-buffer' now fits frames in both dimensions. The new
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options `fit-frame-to-buffer-margins' and `fit-frame-to-buffer-sizes'
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control the size of the frame and its position on screen.
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*** Temp Buffer Resize Mode can now adjust the height and width of
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windows and frames. The new option `temp-buffer-max-width' allows you to
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control the width of temporary buffer windows. Moreover, if the new
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option `fit-frame-to-buffer' is non-nil and the buffer appears in the
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root window of a frame, Temp Buffer Resize Mode will try to adjust the
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width and/or height of the frame.
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*** `split-window' is now a non-interactive function, not a command.
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As a command, it was a special case of `C-x 2' (`split-window-below'),
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and as such superfluous. After being reimplemented in Lisp, its
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interactive form was mistakenly retained.
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*** The functions `window-size' and `window-total-size' now have an
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optional argument to return a rounded size value.
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*** `window-state-put' now allows you to put a window state into internal
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windows too.
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*** New option `scroll-bar-adjust-thumb-portion'.
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Available only on X, this option allows you to control over-scrolling
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using the scroll bar (i.e., dragging the thumb down even when the end
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of the buffer is visible).
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*** New display actions functions for `display-buffer':
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**** `display-buffer-at-bottom' chooses or creates a window at the
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bottom of the selected frame.
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**** `display-buffer-no-window' to not display the buffer in a window.
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*** New display action alist entry `allow-no-window' to indicate the
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caller of `display-buffer' is ready to handle the case of not displaying
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the buffer in a window.
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*** `display-buffer-in-previous-window' is now a member of
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`display-buffer-fallback-action'.
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** Lisp evaluation
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*** `eval-defun' on an already defined defcustom calls the :set function,
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if there is one.
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*** The commands `eval-expression' (`M-:'), `eval-last-sexp' (`C-x C-e'),
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and `eval-print-last-sexp' (`C-j' in Lisp Interaction mode) can take a
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zero prefix argument. This disables truncation of lists in the output,
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equivalent to setting `(eval-expression-)print-length' and
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`(eval-expression-)print-level' to nil. Additionally, it causes integers
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to be printed in other formats (octal, hexadecimal, and character).
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*** New hook `eval-expression-minibuffer-setup-hook' run by
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`eval-expression' on entering the minibuffer.
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** `cache-long-line-scans' is now non-nil, and renamed to `cache-long-scans',
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because it affects caching of paragraph scanning results as well.
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There is no reason to set this to nil except for debugging purposes.
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** `emacs-bzr-version' has been renamed to `emacs-repository-version',
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and works for git too, if you fetch the repository notes.
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** The default value of `comment-use-global-state' is now t,
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and this variable has been marked obsolete.
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** `write-region-inhibit-fsync' now defaults to t in batch mode.
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** The option `set-mark-default-inactive' has been deleted.
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This unfinished feature was introduced by accident in Emacs 23.1;
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simply disabling Transient Mark mode does the same thing.
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* Editing Changes in Emacs 24.4
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** Indentation
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*** `electric-indent-mode' is now enabled by default.
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Typing RET reindents the current line and indents the new line.
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`C-j' inserts a newline but does not indent. In some programming modes,
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additional characters are electric (eg `{').
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*** New buffer-local `electric-indent-local-mode'.
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*** The behavior of `C-x TAB' (`indent-rigidly') has changed.
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When invoked without a prefix argument, it now activates a transient
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mode in which typing <left>, <right>, <S-left>, and <S-right> adjusts
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the text indentation in the region. Typing any other key resumes
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normal editing behavior.
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*** `tab-stop-list' is now implicitly extended to infinity by repeating
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the last step. Its default value is changed to nil, which means a tab
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stop every `tab-width' columns.
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** Uniquify is enabled by default, with `post-forward-angle-brackets' style.
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In other words, if you visit two files that have the same base name,
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then rather than creating buffers basename and basename<2>,
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Emacs uses basename<dirA> and basename<dirB>. To change this,
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customize `uniquify-buffer-name-style'. Set it to nil for the old behavior.
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** New command `C-x SPC' (`rectangle-mark-mode') makes a rectangular region.
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Most commands are still unaware of it, but kill/yank do work on the rectangle.
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** New option `visual-order-cursor-movement'.
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If this is non-nil, cursor motion with arrow keys will follow the
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visual order of characters on the screen: <left> always moves to the
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left, <right> always moves to the right, disregarding the surrounding
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bidirectional context.
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** New command `delete-duplicate-lines'.
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This searches the region for identical lines, and removes all but one
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copy of each repeated line. The lines need not be sorted.
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||
|
||
** New command `cycle-spacing' acts like a smarter `just-one-space'.
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When called in succession, it cycles between spacing conventions:
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one space, no spaces, original spacing.
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||
|
||
** `blink-matching-paren' now only highlights the matching open-paren
|
||
by default, instead of moving the cursor. Set this variable to `jump' to
|
||
restore the old behavior.
|
||
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||
** The new function `fill-single-char-nobreak-p' can stop fill from breaking
|
||
a line after a one-letter word, which is an error in some typographical
|
||
conventions. To use it, add it to the `fill-nobreak-predicate' hook.
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** Registers
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||
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*** All interactive commands that read a register (`copy-to-register', etc.)
|
||
now display a temporary window after `register-preview-delay' seconds
|
||
that summarizes existing registers. To disable this, set that option to nil.
|
||
Interactive commands that read registers and want to make use of this
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||
should use `register-read-with-preview' to read register names.
|
||
|
||
*** New command `frameset-to-register' bound to `C-x r f', replacing
|
||
`frame-configuration-to-register'. It offers similar functionality,
|
||
plus enhancements like the ability to restore deleted frames.
|
||
(`frame-configuration-to-register' still exists, but no longer has a
|
||
key binding.)
|
||
|
||
*** New command `C-x C-k x' (`kmacro-to-register') stores keyboard
|
||
macros in registers.
|
||
|
||
|
||
* Changes in Specialized Modes and Packages in Emacs 24.4
|
||
|
||
** Backtrace and debugger
|
||
|
||
*** New Lisp debugger command `v' (`debugger-toggle-locals') toggles the
|
||
display of local variables of the current stack frame.
|
||
|
||
*** The Lisp debugger's `e' command (`debugger-eval-expression') now includes
|
||
the lexical environment when evaluating the code in the context at point
|
||
(and so allows you to access lexical variables).
|
||
|
||
*** New minor mode `jit-lock-debug-mode' helps you debug code run via JIT Lock.
|
||
|
||
** Battery information can now be retrieved from BSD's `apm' utility.
|
||
|
||
** In the Buffer Menu, `M-s a C-o' shows matches for a regexp in marked buffers.
|
||
|
||
** Calc
|
||
|
||
*** Calc by default now uses the Gregorian calendar for all dates, and
|
||
uses January 1, 1 AD as its day number 1. Previously Calc used the
|
||
Julian calendar for dates before September 14, 1752, and it used
|
||
December 31, 1 BC as its day number 1; the new scheme is more
|
||
consistent with Calendar's calendrical system and day numbering.
|
||
|
||
*** The new option `calc-gregorian-switch' lets you configure if
|
||
(and when) Calc switches from the Julian to the Gregorian calendar.
|
||
|
||
*** Support for ISO 8601 dates.
|
||
|
||
** Calendar and Diary
|
||
|
||
*** New faces `calendar-weekday-header', `calendar-weekend-header',
|
||
and `calendar-month-header'.
|
||
|
||
*** New option `calendar-day-header-array'.
|
||
|
||
*** New variable `diary-from-outlook-function', used by the command
|
||
`diary-from-outlook'.
|
||
|
||
*** The variable `calendar-font-lock-keywords' is obsolete.
|
||
|
||
** CEDET
|
||
|
||
*** EDE
|
||
|
||
**** The cpp-root project now supports executing a compile command.
|
||
It can be set through the new :compile-command slot or the
|
||
buffer-local variable `compile-command'.
|
||
|
||
**** Better selection of include directories for the 'linux' project.
|
||
Include directories now support out-of-tree build directories and
|
||
target architecture auto-detection.
|
||
|
||
*** Semantic
|
||
|
||
**** Improved detection of used namespaces in current scope in C++.
|
||
|
||
**** Parsing of default values for variables and function arguments in C/C++.
|
||
They are also displayed by the summarize feature in the mode line.
|
||
|
||
**** Improved parsing of function pointers in C/C++.
|
||
This also includes parsing of function pointers as function arguments.
|
||
|
||
**** Parsing of C/C++ preprocessor macros that open new scope.
|
||
For example, this enables parsing of macros that open new namespaces.
|
||
|
||
**** Support for 'this' pointer in inline member functions in C++.
|
||
|
||
** CFEngine mode
|
||
|
||
*** Support for completion, ElDoc, and Flycheck has been added.
|
||
|
||
*** The current CFEngine syntax is parsed from "cf-promises -s json".
|
||
There is a fallback syntax available if you don't have cf-promises or
|
||
if your version doesn't support that option. See option `cfengine-cf-promises'.
|
||
|
||
** cl-lib
|
||
|
||
*** New macro `cl-tagbody'.
|
||
This executes statements while allowing for control transfer to labels.
|
||
|
||
*** letf is now just an alias for cl-letf.
|
||
|
||
** CUA mode
|
||
|
||
*** CUA mode now uses `delete-selection-mode' and `shift-select-mode'.
|
||
Hence, you can now enable it independently from those modes, and from
|
||
`transient-mark-mode'.
|
||
|
||
*** `cua-highlight-region-shift-only' is now obsolete.
|
||
You can disable `transient-mark-mode' to get the same result.
|
||
|
||
*** CUA's rectangles can now be used without CUA by calling the command
|
||
`cua-rectangle-mark-mode'.
|
||
|
||
** Delete Selection mode can now be used without Transient Mark mode.
|
||
|
||
** Desktop
|
||
|
||
*** `desktop-save-mode' by default now auto-saves an existing desktop file
|
||
after `desktop-auto-save-timeout'. To disable this, customize that option
|
||
to nil (or zero).
|
||
|
||
*** Desktop now saves and restores the frame/window configuration.
|
||
To disable this, set `desktop-restore-frames' to nil.
|
||
See also related options `desktop-restore-reuses-frames',
|
||
`desktop-restore-in-current-display', and `desktop-restore-forces-onscreen'.
|
||
|
||
** New Dired minor mode `dired-hide-details-mode' toggles whether details,
|
||
such as file ownership or permissions, are visible in Dired buffers.
|
||
See the new options `dired-hide-details-hide-symlink-targets' and
|
||
`dired-hide-details-hide-information-lines' for customizing what to hide.
|
||
|
||
** You can enable ElDoc inside the `eval-expression' minibuffer with:
|
||
(add-hook 'eval-expression-minibuffer-setup-hook 'eldoc-mode)
|
||
The results display in the mode line.
|
||
|
||
** Electric Pair mode
|
||
|
||
*** New option `electric-pair-preserve-balance', enabled by default.
|
||
If non-nil, pairing/skipping only kicks in when that help the balance
|
||
of parentheses and quotes; i.e., the buffer should end up at least as
|
||
balanced as before.
|
||
|
||
You can further control this behavior by adjusting the predicates
|
||
stored in `electric-pair-inhibit-predicate' and `electric-pair-skip-self'.
|
||
|
||
*** New option `electric-pair-delete-adjacent-pairs', enabled by default.
|
||
In `electric-pair-mode', the commands `backward-delete-char' and
|
||
`backward-delete-char-untabify' are now bound to electric variants
|
||
that delete the closer when invoked between adjacent pairs.
|
||
|
||
*** New option `electric-pair-open-newline-between-pairs', enabled by default.
|
||
In `electric-pair-mode', inserting a newline between adjacent pairs
|
||
opens an extra newline after point, which is indented if
|
||
`electric-indent-mode' is also set.
|
||
|
||
*** New option `electric-pair-skip-whitespace', enabled by default.
|
||
This controls if skipping over closing delimiters should jump over any
|
||
whitespace slack. Setting it to `chomp' makes it delete this
|
||
whitespace. See also the variable `electric-pair-skip-whitespace-chars'.
|
||
|
||
*** New variables control the pairing in strings and comments.
|
||
You can customize `electric-pair-text-pairs' and
|
||
`electric-pair-text-syntax-table' to tweak pairing behavior inside
|
||
strings and comments.
|
||
|
||
** New EPA option `epa-mail-aliases'.
|
||
You can set this to a list of email address aliases that `epa-mail-encrypt'
|
||
should use to find keys.
|
||
|
||
** New ERC option `erc-accidental-paste-threshold-seconds'.
|
||
If set to a number, this can be used to avoid accidentally pasting large
|
||
amounts of data into the ERC input.
|
||
|
||
** New ERT macro `skip-unless' allows skipping ERT tests.
|
||
|
||
** Eshell
|
||
|
||
*** `eshell' now supports visual subcommands and options.
|
||
Eshell has been able to handle "visual" commands (interactive,
|
||
non-line oriented commands such as top that require display
|
||
capabilities not provided by eshell) by running them in an Emacs
|
||
terminal emulator. See `eshell-visual-commands'.
|
||
|
||
This feature has been extended to subcommands and options that make a
|
||
usually line-oriented command a visual command. Typical examples are
|
||
"git log" and "git <command> --help", which display their output in a
|
||
pager by default. See `eshell-visual-subcommands' and `eshell-visual-options'.
|
||
|
||
*** New Eshell-Tramp module.
|
||
External su and sudo commands are now the default; the internal,
|
||
Tramp-using variants can still be used by enabling the eshell-tramp module.
|
||
|
||
** New F90 mode option `f90-smart-end-names'.
|
||
|
||
** New option `gnutls-verify-error', if non-nil, means that Emacs
|
||
should reject SSL/TLS certificates that GnuTLS determines as invalid.
|
||
(This option defaults to nil at present, but this is expected to change
|
||
in a future release.)
|
||
|
||
** Hi-Lock
|
||
|
||
*** New global command `M-s h .' (`highlight-symbol-at-point') highlights
|
||
the symbol near point.
|
||
|
||
*** New option `hi-lock-auto-select-face'. When non-nil, hi-lock commands
|
||
will cycle through faces in `hi-lock-face-defaults' without prompting.
|
||
|
||
** Icomplete is now more similar to Ido.
|
||
|
||
*** Icomplete by default now applies to all forms of minibuffer completion.
|
||
The variable `icomplete-with-completion-tables' (now a user option)
|
||
controls this. To restore the old behavior, set it back to
|
||
'(internal-complete-buffer).
|
||
|
||
*** You can navigate through and select completions using the keys
|
||
from `icomplete-minibuffer-map'.
|
||
|
||
*** The string that separates potential completions is now a customizable
|
||
option (`icomplete-separator'). The default is " | " rather than ",".
|
||
|
||
*** New face `icomplete-first-match'; and new options
|
||
`icomplete-hide-common-prefix' and `icomplete-show-matches-on-no-input'.
|
||
|
||
*** The option `icomplete-show-key-bindings' has been removed.
|
||
|
||
** Ido
|
||
|
||
*** An Ido user manual is now included.
|
||
|
||
*** The option `ido-use-virtual-buffers' can now take the value `auto'.
|
||
This means to use virtual buffers if the current ido input does not match
|
||
an existing buffer.
|
||
|
||
*** The variable `ido-decorations' can optionally have two new elements,
|
||
which are the brackets to use around the sole remaining completion.
|
||
|
||
** Image mode
|
||
|
||
*** New commands `n' (`image-next-file') and `p' (`image-previous-file')
|
||
visit the next image file and the previous image file in the same
|
||
directory, respectively.
|
||
|
||
*** New commands to show specific frames of multi-frame images.
|
||
`f' (`image-next-frame') and `b' (`image-previous-frame') visit the
|
||
next or previous frame. `F' (`image-goto-frame') shows a specific frame.
|
||
|
||
*** New commands to speed up, slow down, or reverse animation.
|
||
`a +' (`image-increase-speed') and `a -' (`image-decrease-speed') to
|
||
speed up and slow down the animation. `a r' (`image-reverse-speed')
|
||
to reverse it and `a 0' (`image-reset-speed') to reset it.
|
||
|
||
*** The command `image-mode-fit-frame' deletes other windows.
|
||
When toggling, it restores the frame's previous window configuration.
|
||
It also has an optional frame argument, which can be used by Lisp
|
||
callers to fit the image to a frame other than the selected frame.
|
||
|
||
** New Imenu option `imenu-generic-skip-comments-and-strings'.
|
||
|
||
** Info
|
||
|
||
*** New Info face `info-index-match', used to highlight matches in index
|
||
entries displayed by `Info-index-next', `Info-virtual-index' and
|
||
`info-apropos'.
|
||
|
||
*** The Info-edit command is obsolete. Editing Info nodes by hand
|
||
has not been relevant for some time.
|
||
|
||
** JS Mode
|
||
|
||
*** New option `js-switch-indent-offset'.
|
||
|
||
*** Better indentation of multiple-variable declarations.
|
||
If a declaration spans several lines, variables on the following lines
|
||
are lined up to the first one.
|
||
|
||
*** Recognition and better indentation of continuations in array comprehensions.
|
||
|
||
** MH-E has been updated to version 8.6 - see separate MH-E-NEWS file.
|
||
|
||
** Octave mode
|
||
|
||
*** Font locking for Texinfo comments and new keywords.
|
||
|
||
*** Completion in Octave file buffers.
|
||
|
||
*** ElDoc support.
|
||
|
||
*** Jump to definition.
|
||
|
||
*** Documentation lookup/search.
|
||
|
||
** OPascal mode is the new name for Delphi mode
|
||
|
||
*** All delphi-* variables and functions have been renamed to opascal-*.
|
||
Obsolete aliases exist for those likely to have been used externally.
|
||
|
||
*** The option `delphi-newline-always-indents' has been removed.
|
||
Use `electric-indent-mode' instead.
|
||
|
||
*** The TAB key runs the standard `indent-for-tab-command', not `delphi-tab'.
|
||
|
||
** Package
|
||
|
||
*** The package library now supports digital signing of packages.
|
||
Maintainers of package archives should consider signing their packages
|
||
to enhance security.
|
||
|
||
**** If the user option `package-check-signature' is non-nil,
|
||
Emacs tries to check package signatures at install time.
|
||
The value `allow-unsigned' allows installation of unsigned packages.
|
||
|
||
**** The user option `package-unsigned-archives' lists archives where
|
||
Emacs will not try to check signatures.
|
||
|
||
*** New option `package-pinned-packages'. This is useful if you have multiple
|
||
archives enabled, with more than one offering a given package that you want.
|
||
|
||
*** In the `list-packages' buffer, you can use `f' (`package-menu-filter')
|
||
to filter the list of packages by a keyword.
|
||
|
||
*** In the `describe-package' buffer, there are now buttons listing the
|
||
keywords related to the package. Click on a button to see other packages
|
||
related to that keyword.
|
||
|
||
*** The format of `archive-contents' files, generated by package
|
||
repositories, has changed to allow a new (fifth) element in the data
|
||
vectors, containing an associative list with extra properties.
|
||
(For example, `describe-package' uses the `:url' extra property to
|
||
display a "Homepage" header.)
|
||
|
||
** In Prolog mode, `prolog-use-smie' has been removed,
|
||
along with the non-SMIE indentation code.
|
||
|
||
** Python mode
|
||
|
||
*** Out of the box support for CPython, iPython and readline based shells.
|
||
**** `python-shell-completion-module-string-code' is no longer used.
|
||
|
||
*** Automatic shell prompt detection. New user options:
|
||
**** `python-shell-interpreter-interactive-arg'.
|
||
**** `python-shell-prompt-detect-enabled'.
|
||
**** `python-shell-prompt-detect-failure-warning'.
|
||
**** `python-shell-prompt-input-regexps'.
|
||
**** `python-shell-prompt-output-regexps'.
|
||
|
||
*** Python shell support for remote hosts via tramp.
|
||
|
||
*** Correct display of line numbers for code sent to the Python shell.
|
||
|
||
** Remember
|
||
|
||
*** The new command `remember-notes' creates a buffer that is saved on exit.
|
||
You can use it as a more permanent *scratch* buffer.
|
||
|
||
*** Remember can now store notes in separate files.
|
||
To use this, add `remember-store-in-files' to the `remember-handler-functions'
|
||
option. The files are saved in `remember-data-directory' using
|
||
names specified by `remember-directory-file-name-format'.
|
||
|
||
** Rmail
|
||
|
||
*** Customize `rmail-mbox-format' to influence some minor aspects of
|
||
how Rmail displays non-MIME messages.
|
||
|
||
*** The `unrmail' command now converts from BABYL to mboxrd format,
|
||
rather than mboxo. Customize `unrmail-mbox-format' to change this.
|
||
|
||
** Ruby mode
|
||
|
||
*** Improved syntax highlighting and indentation.
|
||
|
||
*** New `electric-indent-mode' integration.
|
||
|
||
*** New option `ruby-encoding-magic-comment-style'.
|
||
|
||
*** New option `ruby-custom-encoding-magic-comment-template'.
|
||
|
||
*** New option `ruby-align-to-stmt-keywords'.
|
||
|
||
*** New option `ruby-align-chained-calls'.
|
||
|
||
*** More Ruby file types have been added to `auto-mode-alist'.
|
||
|
||
** Search and Replace
|
||
|
||
*** New global command `M-s .' (`isearch-forward-symbol-at-point')
|
||
starts a symbol (identifier) incremental search forward with the
|
||
symbol found near point added to the search string initially.
|
||
|
||
*** `C-x 8 RET' in Isearch mode reads a character by its Unicode name
|
||
and adds it to the search string.
|
||
|
||
*** `M-s i' in Isearch mode toggles whether search matches invisible text.
|
||
|
||
*** `query-replace' skips invisible text when `search-invisible' is nil,
|
||
and opens overlays with hidden text when `search-invisible' is `open'.
|
||
|
||
*** A negative prefix argument of replacement commands replaces backward.
|
||
`M-- M-%' replaces a string backward, `M-- C-M-%' replaces a regexp
|
||
backward, `M-s w words M-- M-%' replaces a sequence of words backward.
|
||
|
||
*** By default, prefix arguments do not now terminate Isearch mode.
|
||
Set `isearch-allow-prefix' to nil to restore the old behavior.
|
||
|
||
*** More Isearch commands accept prefix arguments, namely
|
||
`isearch-printing-char', `isearch-quote-char', `isearch-yank-word',
|
||
`isearch-yank-line'.
|
||
|
||
*** Word search now matches whitespace at the beginning/end
|
||
of the search string if it contains leading/trailing whitespace.
|
||
In an incremental word search or when using a non-nil LAX argument
|
||
of `word-search-regexp', the lax matching can also match part of
|
||
the first word (in addition to the lax matching of the last word).
|
||
The same rules are now applied to the symbol search, with the difference
|
||
that it matches symbols, and non-symbol characters between symbols.
|
||
|
||
** New SES command `ses-rename-cell' allows assignment of names to SES cells.
|
||
|
||
** The shell.el option `explicit-bash-args' includes --noediting by default.
|
||
All non-ancient Bash versions support this option.
|
||
|
||
** Shell Script mode
|
||
|
||
*** The SMIE indentation engine is now used by default - see `sh-use-smie'.
|
||
|
||
*** `sh-mode' now has its own setting for `add-log-current-defun-function'.
|
||
|
||
** SMIE
|
||
|
||
*** You can customize the SMIE indentation of a mode via `smie-config'.
|
||
The command `smie-config-guess' can help you derive the appropriate
|
||
indentation settings, if you provide it with an indented sample file.
|
||
Use `smie-config-save' to save the result.
|
||
|
||
*** You can customize the SMIE indentation of a file by adding an entry to
|
||
the file's local variables of the form: `eval: (smie-config-local '(RULES))'.
|
||
|
||
*** New commands `smie-config-show-indent' and `smie-config-set-indent'.
|
||
|
||
** SQL mode
|
||
|
||
*** Improved login monitoring and appropriate response to login failures.
|
||
New variable `sql-login-delay' defines maximum wait time for a connection.
|
||
|
||
*** Oracle support.
|
||
SQL*Plus script placeholders are properly highlighted and identified
|
||
in `sql-placeholders-filter'. When starting SQL*Plus, `sql-oracle-options'
|
||
are passed before the logon parameter, as required. The default now
|
||
includes `-L', to limit the number of logon attempts per invocation.
|
||
|
||
** New Term mode option `term-suppress-hard-newline'.
|
||
|
||
** Todo mode has been rewritten and enhanced.
|
||
The Todo mode user manual describes all commands and most user
|
||
options. To support some of these features, a new file format is
|
||
used, which is incompatible with the old format; however, you can
|
||
convert old todo and done item files to the new format on initializing
|
||
the first new todo file, or at any later time with the provided
|
||
conversion command. The previous version of todo-mode.el has been
|
||
renamed to otodo-mode.el and is now obsolete. New features include:
|
||
|
||
*** Support for multiple todo files and archive files of done items.
|
||
|
||
*** Renaming, reordering, moving, merging, and deleting categories.
|
||
|
||
*** Sortable tabular summaries of categories and the item types they contain.
|
||
|
||
*** Cross-category lists of items filtered by specific criteria.
|
||
|
||
*** More fine-grained interaction with the Emacs diary, by being able to
|
||
decide for each todo item whether it appears in the Fancy Diary display.
|
||
|
||
*** Highly flexible new item insertion and item editing.
|
||
|
||
*** Moving items between categories, storing done items in their category
|
||
or in archive files, undoing or unarchiving done items.
|
||
|
||
*** Reprioritizing items by inputting a numerical priority.
|
||
|
||
*** Extensive customizability of operation and display, including many faces.
|
||
|
||
** Trace
|
||
|
||
*** `trace-function' and `trace-function-background' no longer prompt for
|
||
the output buffer. Unless you use a prefix argument, they output to
|
||
`trace-buffer'.
|
||
|
||
*** With a prefix argument, `trace-function' and `trace-function-background'
|
||
will prompt for a "context". This is a Lisp expression, whose value at the
|
||
time the function is entered/exited is printed along with the function's
|
||
name and arguments.
|
||
|
||
** Tramp
|
||
|
||
*** New connection method "adb", which allows to access Android
|
||
devices by the Android Debug Bridge. The variable `tramp-adb-program'
|
||
can be used to adapt the path of the "adb" program, if needed.
|
||
|
||
*** Handlers for `file-acl' and `set-file-acl' for remote machines
|
||
that support POSIX ACLs.
|
||
|
||
*** Handlers for `file-notify-add-watch' and `file-notify-rm-watch'
|
||
for remote machines that support filesystem notifications.
|
||
|
||
*** The experimental url syntax for remote file names has been removed.
|
||
|
||
*** The connection methods "plink1", "ssh1", "ssh2", "scp1", "scp2",
|
||
"scpc" and "rsyncc" are discontinued. The ssh option
|
||
"ControlMaster=auto" is set automatically in all ssh-based methods,
|
||
when possible. See `tramp-use-ssh-controlmaster-options'.
|
||
|
||
** New URL command `url-cookie-list' displays the current cookies,
|
||
and allows you to interactively remove cookies.
|
||
|
||
** VC and related modes
|
||
|
||
*** In VC directory mode, `D' displays diffs between VC-controlled
|
||
whole tree revisions.
|
||
|
||
*** In VC directory mode, `L' lists the change log for the current VC
|
||
controlled tree in a window.
|
||
|
||
*** In VC directory mode, `I' shows a log of changes that will be
|
||
received with a pull operation.
|
||
|
||
*** `C-x v G' (globally) and `G' (in VC directory mode) ignores a file
|
||
under current version control system. When called with a prefix
|
||
argument, you can remove a file from the ignored file list.
|
||
|
||
** VHDL mode
|
||
|
||
*** New options: `vhdl-actual-generic-name', `vhdl-beautify-options'.
|
||
|
||
*** New commands: `vhdl-fix-statement-region', `vhdl-fix-statement-buffer'.
|
||
|
||
** The Woman commands `woman-default-faces' and `woman-monochrome-faces'
|
||
are obsolete. Customize the `woman-*' faces instead.
|
||
|
||
** More packages look for ~/.emacs.d/<foo> additionally to ~/.<foo>.
|
||
Affected files:
|
||
~/.emacs.d/timelog replaces ~/.timelog
|
||
~/.emacs.d/vip replaces ~/.vip
|
||
~/.emacs.d/viper replaces ~/.viper
|
||
~/.emacs.d/ido.last replaces ~/.ido.last
|
||
~/.emacs.d/kkcrc replaces ~/.kkcrc
|
||
~/.emacs.d/quickurls replaces ~/.quickurls
|
||
~/.emacs.d/idlwave/ replaces ~/.idlwave/
|
||
~/.emacs.d/bdfcache.el replaces ~/.bdfcache.el
|
||
~/.emacs.d/places replaces ~/.emacs-places
|
||
~/.emacs.d/shadows replaces ~/.shadows
|
||
~/.emacs.d/shadow_todo replaces ~/.shadow_todo
|
||
~/.emacs.d/strokes replaces ~/.strokes
|
||
~/.emacs.d/notes replaces ~/.notes
|
||
~/.emacs.d/type-break replaces ~/.type-break
|
||
Also the following files used by the now obsolete otodo-mode.el:
|
||
~/.emacs.d/todo-do replaces ~/.todo-do
|
||
~/.emacs.d/todo-done replaces ~/.todo-done
|
||
~/.emacs.d/todo-top replaces ~/.todo-top
|
||
|
||
** Obsolete packages
|
||
|
||
*** iswitchb.el; use icomplete-mode.
|
||
|
||
*** longlines.el; use visual-line-mode.
|
||
|
||
*** meese.el.
|
||
|
||
*** sup-mouse.el.
|
||
|
||
*** terminal.el; use term.el instead.
|
||
|
||
*** the old version of todo-mode.el (renamed to otodo-mode.el).
|
||
|
||
*** xesam.el (owing to the cancellation of the XESAM project).
|
||
|
||
*** yow.el; use fortune.el or cookie1.el instead.
|
||
|
||
|
||
* New Modes and Packages in Emacs 24.4
|
||
|
||
** New package eww.el provides a built-in web browser.
|
||
This requires Emacs to have been compiled with libxml2 support.
|
||
|
||
** New package nadvice.el offers lighter-weight advice facilities.
|
||
It is layered as:
|
||
|
||
*** `add-function'/`remove-function', which can be used to add/remove code on
|
||
any function-carrying place, such as process filters or `<foo>-function' hooks.
|
||
|
||
*** `advice-add'/`advice-remove' to add/remove a piece of advice on a named
|
||
function, much like `defadvice' does.
|
||
|
||
** New package frameset.el provides a set of operations to save a frameset
|
||
(the state of all or a subset of the existing frames and windows, somewhat
|
||
similar to a frame configuration), both in-session and persistently, and
|
||
restore it at some point in the future.
|
||
|
||
** New package filenotify.el provides an interface for file system
|
||
notifications. It requires that Emacs be compiled with one of the
|
||
low-level libraries gfilenotify.c, inotify.c or w32notify.c.
|
||
|
||
** New minor modes `prettify-symbols-mode' and `global-prettify-symbols-mode'
|
||
display specified symbols as composed characters. E.g., in Emacs Lisp mode,
|
||
this replaces the string "lambda" with the Greek lambda character.
|
||
|
||
** New minor mode `superword-mode', which overrides the default word motion
|
||
commands to treat "symbol_words" as a single word, similar to what
|
||
`subword-mode' does.
|
||
|
||
|
||
* Incompatible Lisp Changes in Emacs 24.4
|
||
|
||
** The default file coding for Emacs Lisp files is now utf-8.
|
||
(See `file-coding-system-alist'.) In most cases, this change is
|
||
transparent, but files that contain unusual characters without
|
||
specifying an explicit coding system may fail to load with obscure
|
||
errors. You should either convert them to utf-8 or add an explicit
|
||
`coding:' cookie.
|
||
|
||
** Default process filters and sentinels are not nil any more.
|
||
Instead they default to a function that does what the nil value used to do.
|
||
|
||
** Overlay priority does not have to be nil or a non-negative integer.
|
||
Overlay priority can be other kinds of Lisp objects. We didn't yet
|
||
decide whether other types of values are stable enough, and therefore
|
||
don't feel it's right to document them. For now, don't assume in your
|
||
code that the values of overlay priority can only be either nil or an
|
||
integer, always test them with an appropriate predicate to be one or
|
||
the other. If you need to sort arbitrary overlays into priority
|
||
order, `overlays-at' can now optionally do this.
|
||
You should still only specify integer priorities on overlays you create.
|
||
|
||
** The cars of the elements in `interpreter-mode-alist' are now
|
||
treated as regexps rather than literal strings.
|
||
|
||
** `overriding-terminal-local-map' no longer replaces the local keymaps.
|
||
It used to disable the minor mode, major mode, and text-property keymaps,
|
||
whereas now it simply has higher precedence.
|
||
|
||
** `kill-region' has lost its `yank-handler' optional argument.
|
||
|
||
** `(input-pending-p)' no longer runs other timers that are ready to run.
|
||
The new optional CHECK-TIMERS parameter allows for the prior behavior.
|
||
|
||
** `defvar' and `defcustom' in a let-binding affect the "external" default.
|
||
|
||
** The syntax of ?» and ?« is now punctuation instead of matched parens.
|
||
Some languages match those as »...«, and others as «...», so it is
|
||
better for Emacs to stay neutral by default.
|
||
|
||
** `read-event' does not always decode chars in ttys any more. As was the case
|
||
in Emacs 22 and before, `read-event' (and `read-char') by default read raw
|
||
bytes from the terminal. If you want to read decoded chars instead (as was
|
||
always the case in Emacs-23, for example), pass a non-nil
|
||
`inherit-input-method' argument.
|
||
|
||
** In `symbol-function', nil and "unbound" are indistinguishable.
|
||
`symbol-function' does not signal a `void-function' error any more.
|
||
To determine if a symbol's function definition is void, use `fboundp'.
|
||
|
||
** `defadvice' does not honor the `freeze' flag and cannot advise
|
||
special-forms any more.
|
||
|
||
** `dolist' no longer binds VAR while evaluating the RESULT form,
|
||
when lexical binding is enabled. Previously, VAR was bound to nil,
|
||
which often led to spurious unused-variable warnings.
|
||
|
||
** The return value of `backup-buffer' has changed.
|
||
The second argument is no longer an SELinux context, instead it is an
|
||
alist of extended attributes as returned by the new function
|
||
`file-extended-attributes'. The attributes can be applied to another
|
||
file using `set-file-extended-attributes'.
|
||
|
||
** By default `copy-file' no longer copies file permission bits to an
|
||
existing destination; and it sets the file permission bits of a newly
|
||
created destination to those of the source, masked by the default file
|
||
permissions. To copy the file permission bits, pass t as the
|
||
PRESERVE-PERMISSIONS argument of `copy-file'.
|
||
|
||
** `visited-file-modtime' now returns -1 for nonexistent files.
|
||
Formerly it returned a list (-1 LOW USEC PSEC), but this was ambiguous
|
||
in the presence of files with negative time stamps.
|
||
|
||
** Frame-local variables that affect redisplay do not work any more.
|
||
More specifically, redisplay does not bother to check for a frame-local
|
||
value when looking up variables.
|
||
|
||
** In compiled Lisp files, the header no longer includes a timestamp.
|
||
|
||
** The option `inhibit-local-menu-bar-menus' has been removed.
|
||
|
||
|
||
* Lisp Changes in Emacs 24.4
|
||
|
||
** Change to the Emacs Lisp coding conventions: the package descriptor
|
||
and name of global variables, constants, and functions should be separated
|
||
by two hyphens if the symbol is not meant to be used by other packages.
|
||
|
||
** The second argument of `eval' can now specify a lexical environment.
|
||
|
||
** New macro `define-alternatives' can be used to define generic commands.
|
||
Generic commands are interactive functions whose implementation can be
|
||
selected among several alternatives, as a matter of user preference.
|
||
|
||
** Numeric comparison functions =, <, >, <=, >= can now take many arguments.
|
||
|
||
** New functions `special-form-p' and `macrop'.
|
||
|
||
** New macro `with-eval-after-load'.
|
||
This is like the old `eval-after-load', but better behaved.
|
||
|
||
** If you give a symbol a `defalias-fset-function' property, `defalias'
|
||
on that symbol will use the associated value as a function to call
|
||
in place of `fset'.
|
||
|
||
** New variable `enable-dir-local-variables'.
|
||
Directory-local variables are ignored if this is nil. This may be
|
||
useful for modes that want to ignore directory-locals while still
|
||
respecting file-local variables.
|
||
|
||
** `read-regexp' now uses the new variable `read-regexp-defaults-function'
|
||
as a function to call to provide default values.
|
||
|
||
** New functions `group-gid' and `group-real-gid'.
|
||
|
||
** New function `get-pos-property'.
|
||
|
||
** New hook `pre-redisplay-function'.
|
||
|
||
** `byte-compile-interactive-only-functions' is now obsolete.
|
||
To specify that a command should only be called interactively, give it
|
||
a non-nil `interactive-only' property.
|
||
|
||
** New function `string-suffix-p'.
|
||
|
||
** `split-string' now takes an optional argument TRIM.
|
||
The value, if non-nil, is a regexp that specifies what to trim from
|
||
the start and end of each substring.
|
||
|
||
** New function `delete-consecutive-dups'.
|
||
|
||
** Completion
|
||
|
||
*** The separator used by `completing-read-multiple' is now a regexp.
|
||
The default `crm-separator' has been changed to allow surrounding spaces
|
||
around the comma.
|
||
|
||
*** New function `completion-table-with-cache' is a wrapper for
|
||
`completion-table-dynamic' that caches the result of the last lookup.
|
||
|
||
*** New function `completion-table-merge' to combine several
|
||
completion tables by merging their completions.
|
||
|
||
*** The `common-substring' argument of `display-completion-list',
|
||
which has been documented as obsolete since Emacs 23.1, is now _really_
|
||
obsolete, and no longer advertised. Instead either call
|
||
`completion-hilit-commonality' to add the highlighting; or use
|
||
`completion-all-completions', which returns highlighted strings.
|
||
|
||
** Encoding and decoding of text
|
||
|
||
*** New coding-system `prefer-utf-8'.
|
||
This is like `undecided' but prefers UTF-8 on decoding if the text to
|
||
be decoded does not contain any invalid UTF-8 sequences. On encoding,
|
||
any non-ASCII characters are automatically encoded as UTF-8.
|
||
|
||
*** New attributes of coding-systems whose type is `undecided'.
|
||
Two new attributes, `:inhibit-null-byte-detection' and
|
||
`:inhibit-iso-escape-detection', determine how to detect encoding of
|
||
text that includes null bytes and ISO-2022 escape sequences, respectively.
|
||
Each of these attributes can be either nil, zero, or t. If t, decoding
|
||
text ignores null bytes and ISO-2022 sequences, respectively. If nil,
|
||
null bytes cause text to be decoded with no-conversion, and ISO-2022
|
||
sequences cause Emacs to assume the text is encoded in one of the ISO-2022
|
||
encodings, such as iso-2022-7bit. If zero, Emacs consults the variables
|
||
`inhibit-null-byte-detection' and `inhibit-iso-escape-detection'.
|
||
The new attribute `:prefer-utf-8', if non-nil, causes Emacs to prefer
|
||
UTF-8 encoding and decoding, whenever possible.
|
||
|
||
These attributes are only meaningful for coding-systems of type `undecided'.
|
||
(The type of a coding-system is determined by its `:coding-type' attribute
|
||
and can be accessed by calling the `coding-system-type' function.)
|
||
|
||
** Error-handling
|
||
|
||
*** New function `define-error'.
|
||
|
||
*** `with-demoted-errors' takes an additional argument `format'.
|
||
|
||
*** Errors from timer functions are no longer silently discarded,
|
||
but are reported as messages. So you may see "Error running timer"
|
||
messages from code that was failing silently till now. Set
|
||
`debug-on-error' non-nil to get a real error and a backtrace.
|
||
|
||
** Faces
|
||
|
||
*** Face specs set via Custom themes now replace the `defface' spec
|
||
rather than inheriting from it. In other words, setting a face via a
|
||
theme now behaves like setting it via Customize: you only need to
|
||
specify the attributes that you want, you don't need to unset those
|
||
that you don't want.
|
||
|
||
*** The function `face-spec-set' is now like `setq' for face specs.
|
||
Its third arg now accepts values specifying a face spec type (defface,
|
||
custom, or override spec), and the relevant spec is set accordingly.
|
||
|
||
*** New face spec attribute :distant-foreground
|
||
specifies foreground to use if background color is near the foreground
|
||
color that would otherwise have been used.
|
||
|
||
*** New function `add-face-text-property', which can be used to
|
||
conveniently prepend/append new face properties.
|
||
|
||
*** New face characteristic (supports :underline (:style wave))
|
||
specifies whether or not the terminal can display a wavy line.
|
||
|
||
** File-handling
|
||
|
||
*** Support for filesystem notifications.
|
||
Emacs now supports notifications of filesystem changes, such as
|
||
creation, modification, and deletion of files. This requires the
|
||
`glib' API, or the 'inotify' API (on GNU/Linux systems only). On
|
||
MS-Windows systems, this is supported for Windows XP and newer.
|
||
|
||
*** The 9th element returned by `file-attributes' is now unspecified.
|
||
Formerly, it was t if the file's gid would change if file were deleted
|
||
and recreated. This value has been inaccurate for years on many
|
||
platforms, and nobody seems to have noticed or cared.
|
||
|
||
*** The 6th argument to `copy-file' has been renamed to
|
||
PRESERVE-PERMISSIONS as it now handles ACL entries and the traditional
|
||
Unix file permission bits as well as SELinux context.
|
||
|
||
*** The function `file-ownership-preserved-p' now has an optional
|
||
argument GROUP which causes it check for file group too. This can be
|
||
used in place of the 9th element of `file-attributes'.
|
||
|
||
*** The function `set-visited-file-modtime' now accepts a 0 or -1 argument,
|
||
with the same interpretation as the returned value of `visited-file-modtime'.
|
||
|
||
** Image API
|
||
|
||
*** `image-animated-p' is now `image-multi-frame-p'.
|
||
It returns non-nil for any image that contains multiple frames,
|
||
whether or not it specifies a frame delay.
|
||
|
||
*** New variable `image-default-frame-delay' gives the frame delay for
|
||
animated images which do not specify a frame delay.
|
||
|
||
*** New functions `image-current-frame' and `image-show-frame' for getting
|
||
and setting the current frame of a multi-frame image.
|
||
|
||
** ImageMagick
|
||
|
||
*** ImageMagick images now support the :max-width and :max-height keywords.
|
||
|
||
*** When using `create-image' with image data, you can pass a :format
|
||
attribute (via the property-list argument) in order to help
|
||
ImageMagick detect the image type. The value should be a MIME
|
||
content-type that is found in the new variable `image-format-suffixes'.
|
||
|
||
** Revert and Autorevert
|
||
|
||
*** If Emacs is compiled with file notification support, it uses notifications
|
||
instead of checking file time stamps. To disable this, set the user option
|
||
`auto-revert-use-notify' to nil. Alternatively, you can specify a regular
|
||
expression matching directories to be excluded from file notifications via
|
||
`auto-revert-notify-exclude-dir-regexp'.
|
||
|
||
*** The default values of `buffer-stale-function', `revert-buffer-function',
|
||
and `revert-buffer-insert-file-contents-function' are no longer nil.
|
||
Instead they default to functions that do what the nil value used to.
|
||
|
||
*** `buffer-stale-function' is now used for buffers visiting files too.
|
||
|
||
*** The new user option `auto-revert-remote-files' enables reversion
|
||
of remote files, if non-nil.
|
||
|
||
** Terminal
|
||
|
||
*** Functions to pop up menus and dialogs now work on all terminals,
|
||
including TTYs. This includes `x-popup-menu', `x-popup-dialog',
|
||
`message-box', `yes-or-no-p', etc.
|
||
|
||
The function `display-popup-menus-p' will now return non-nil for a
|
||
display or frame whenever a mouse is supported on that display or frame.
|
||
|
||
*** New hook `tty-setup-hook', run at the end of initializing a text terminal.
|
||
|
||
*** The hook `term-setup-hook' is obsolete. It is entirely equivalent
|
||
to `emacs-startup-hook'. See also the new `tty-setup-hook'.
|
||
|
||
** Minor internal changes to the details of lock files.
|
||
The lock for DIR/FILE is now _always_ DIR/.#FILE.
|
||
If DIR/.#FILE already exists and is not an Emacs lock file,
|
||
Emacs makes no attempt to lock DIR/FILE. (Previously, it fell back to
|
||
numbered lock files DIR/.#FILE.0...).
|
||
On file systems that do not support symbolic links, the lock is now a
|
||
regular file with contents being what would have been in the symlink.
|
||
|
||
** New bool-vector set operation functions:
|
||
*** `bool-vector-exclusive-or'
|
||
*** `bool-vector-union'
|
||
*** `bool-vector-intersection'
|
||
*** `bool-vector-set-difference'
|
||
*** `bool-vector-not'
|
||
*** `bool-vector-subsetp'
|
||
*** `bool-vector-count-consecutive'
|
||
*** `bool-vector-count-population'
|
||
|
||
** New library subr-x.el with miscellaneous small utility functions:
|
||
*** `hash-table-keys'
|
||
*** `hash-table-values'
|
||
*** `string-blank-p'
|
||
*** `string-empty-p'
|
||
*** `string-join'
|
||
*** `string-reverse'
|
||
*** `string-trim-left'
|
||
*** `string-trim-right'
|
||
*** `string-trim'
|
||
*** `string-remove-prefix'
|
||
*** `string-remove-suffix'
|
||
|
||
** The `time-to-seconds' alias to `float-time' is no longer marked obsolete.
|
||
|
||
** The spelling of the rx.el category `chinese-two-byte' has been
|
||
corrected (the first 'e' was missing).
|
||
|
||
** EIEIO namespace cleanup, obsolete-aliasing functions to use `eieio-' prefix:
|
||
*** object-name -> eieio-object-name
|
||
*** object-class -> eieio-object-class
|
||
*** object-class-fast -> eieio--object-class
|
||
*** object-class-name -> eieio-object-class-name
|
||
*** object-name-string -> eieio-object-name-string
|
||
*** object-num-slots -> eieio--object-num-slots
|
||
*** object-set-name-string -> eieio-object-set-name-string
|
||
*** class-of -> eieio-object-class
|
||
*** class-name -> eieio-class-name
|
||
*** class-parent -> eieio-class-parent
|
||
*** class-parents -> eieio-class-parents
|
||
*** class-parents-fast -> eieio-class-parents-fast
|
||
*** class-children -> eieio-class-children
|
||
*** class-num-slots -> eieio--class-num-slots
|
||
*** class-precedence-list -> eieio-class-precedence-list
|
||
*** class-direct-subclasses -> eieio-class-children
|
||
*** class-direct-superclasses -> eieio-class-parents
|
||
|
||
** Obsoleted functions
|
||
*** `log10'
|
||
*** `dont-compile'
|
||
*** `lisp-complete-symbol'
|
||
*** `field-complete'
|
||
*** `minibuffer-completion-contents'
|
||
*** `isearch-nonincremental-exit-minibuffer'
|
||
*** `isearch-filter-visible'
|
||
*** `generic-make-keywords-list'
|
||
*** `get-upcase-table' (use `case-table-get-table' instead).
|
||
|
||
** `with-wrapper-hook' is obsoleted by `add-function'.
|
||
The few hooks that used with-wrapper-hook are replaced as follows:
|
||
*** `abbrev-expand-function' obsoletes `abbrev-expand-functions'.
|
||
*** `completion-in-region-function' obsoletes `completion-in-region-functions'.
|
||
*** `filter-buffer-substring-function' obsoletes `filter-buffer-substring-functions'.
|
||
|
||
|
||
* Changes in Emacs 24.4 on Non-Free Operating Systems
|
||
|
||
** New Core Text based font backend for Mac OS X 10.5 and newer.
|
||
To use the old font backend, use the following on the command line:
|
||
% defaults write org.gnu.Emacs FontBackend ns
|
||
GNUstep and Mac OS X 10.4 use the old font backend.
|
||
|
||
** Improved fullscreen support on Mac OS X 10.7 and newer, where the
|
||
default fullscreen method is now "native" fullscreen. To use the
|
||
old style fullscreen, customize `ns-use-native-fullscreen' to nil.
|
||
|
||
** On Mac OS X 10.7 and newer, Emacs can use sRGB colorspace, and does so
|
||
by default. Customize `ns-use-srgb-colorspace' to go back to the old method.
|
||
Note that this does not apply to images.
|
||
|
||
** The procedure for building Emacs on MS-Windows has changed.
|
||
It is now built by running the same configure script as on all other
|
||
platforms. This requires the MSYS environment and MinGW development
|
||
tools. See the updated instructions in nt/INSTALL for details.
|
||
|
||
Using the Posix configure script and Makefiles also means a change in
|
||
the directory structure of the Emacs installation on Windows. It is
|
||
now the same as on GNU and Unix systems. In particular, the auxiliary
|
||
programs, such as cmdproxy.exe and hexl.exe, are in
|
||
libexec/emacs/VERSION/i686-pc-mingw32 (where VERSION is the Emacs
|
||
version), version-independent site-lisp is in share/emacs/site-lisp,
|
||
version-specific Lisp files are in share/emacs/VERSION/lisp and in
|
||
share/emacs/VERSION/site-lisp, Info docs are in share/info, and data
|
||
files are in share/emacs/VERSION/etc. (Emacs knows about all these
|
||
directories and will find the files in there automatically; there's no
|
||
need to set any variables due to this change.)
|
||
|
||
** Emacs on Windows 2000 and later can now access files and directories
|
||
whose names cannot be encoded in the current system codepage.
|
||
|
||
The new variable `w32-unicode-filenames' controls this feature: if it
|
||
is t, Emacs uses Unicode APIs to pass file names to system calls,
|
||
which lifts the limitation of file names to the current locale.
|
||
|
||
** Lock files now work on MS-Windows.
|
||
This helps to prevent losing your edits if the same file is being
|
||
edited in another Emacs session or by another user. See the node
|
||
"Interlocking" in the Emacs User Manual for the details. To disable
|
||
file locking, customize `create-lockfiles' to nil.
|
||
|
||
** The "generate a backtrace on fatal error" feature now works on MS-Windows.
|
||
The backtrace is written to the 'emacs_backtrace.txt' file in the
|
||
directory where Emacs was running.
|
||
|
||
** The `network-interface-list' and `network-interface-info' functions
|
||
are now available on MS-Windows.
|
||
|
||
** The variable `buffer-file-type' is no longer supported.
|
||
Setting it has no effect, and %t in the mode-line format is ignored.
|
||
Likewise, `file-name-buffer-file-type-alist' is now obsolete, and
|
||
modifying it has no effect.
|
||
|
||
|
||
* Installation Changes in Emacs 24.3
|
||
|
||
** The default X toolkit is now Gtk+ version 3.
|
||
If you don't pass `--with-x-toolkit' to configure, or if you use
|
||
`--with-x-toolkit=gtk' or `--with-x-toolkit=yes', configure will try
|
||
to build with Gtk+ version 3, and if that fails, try Gtk+ version 2.
|
||
You can explicitly require a specific version by passing
|
||
`--with-x-toolkit=gtk2' or `--with-x-toolkit=gtk3' to configure.
|
||
|
||
** New configure option `--enable-link-time-optimization', to utilize
|
||
an appropriate feature provided by GCC since version 4.5.0.
|
||
|
||
** New configure option `--without-all' to disable most of the optional
|
||
features (image support, etc.) that are normally enabled by default.
|
||
|
||
** New configure option `--enable-gcc-warnings' (for developing/debugging
|
||
Emacs). If building with GCC, this enables compile-time checks that
|
||
warn/give errors about possibly-questionable C code. On a recent GNU
|
||
system there should be no warnings; on older and on non-GNU systems
|
||
the results may be useful to developers.
|
||
|
||
** The configure option `--enable-use-lisp-union-type' has been
|
||
renamed to `--enable-check-lisp-object-type', as the resulting
|
||
Lisp_Object type no longer uses a union to implement the compile time
|
||
check that this option enables.
|
||
|
||
** The configure option `--disable-maintainer-mode' has been removed,
|
||
as it was confusingly-named and rarely useful.
|
||
|
||
** The configure options `--program-prefix', `--program-suffix', and
|
||
`--program-transform-name' apply to more than just the installed
|
||
binaries. Now they also affect the man pages, icons, and the
|
||
etc/emacs.desktop file; but not the info pages, since this would break
|
||
links between the various manuals.
|
||
|
||
** You can use `NO_BIN_LINK=t make install' to prevent the installation
|
||
overwriting "emacs" in the installation bin/ directory with a link
|
||
to "emacs-VERSION".
|
||
|
||
** Emacs uses libtinfo in preference to libncurses, if available.
|
||
|
||
** On FreeBSD and NetBSD, configure no longer adds /usr/local/lib and
|
||
/usr/pkg/lib to the linker search path. You must add them yourself if
|
||
you want them.
|
||
|
||
** The standalone scripts `rcs-checkin' and `vcdiff' have been removed
|
||
(from the bin and libexec directories, respectively). The former is
|
||
no longer relevant, the latter is replaced by lisp (in vc-sccs.el).
|
||
|
||
|
||
* Startup Changes in Emacs 24.3
|
||
|
||
** Emacs no longer searches for `leim-list.el' files beneath the standard
|
||
lisp/ directory. There should not be any there anyway. If you have
|
||
been adding them there, put them somewhere else; e.g., site-lisp.
|
||
|
||
** The `--no-site-lisp' command line option now works for Nextstep builds.
|
||
|
||
|
||
* Changes in Emacs 24.3
|
||
|
||
** Help
|
||
|
||
*** `C-h f' (`describe-function') can now perform autoloading.
|
||
When this command is called for an autoloaded function whose docstring
|
||
contains a key substitution construct, that function's library is
|
||
automatically loaded, so that the documentation can be shown
|
||
correctly. To disable this, set `help-enable-auto-load' to nil.
|
||
|
||
*** `C-h f' now reports previously-autoloaded functions as "autoloaded",
|
||
even after their associated libraries have been loaded (and the
|
||
autoloads have been redefined as functions).
|
||
|
||
** ImageMagick
|
||
|
||
*** Images displayed via ImageMagick now support transparency and the
|
||
:background image specification property.
|
||
|
||
*** When available, ImageMagick support is automatically enabled.
|
||
It is no longer necessary to call `imagemagick-register-types'
|
||
explicitly to install ImageMagick image types; that function is called
|
||
automatically at startup, or when customizing an imagemagick- option.
|
||
|
||
*** Setting `imagemagick-types-inhibit' to t now disables the use of
|
||
ImageMagick to view images. (You must call `imagemagick-register-types'
|
||
afterwards if you do not use customize to change this.)
|
||
|
||
*** The new variable `imagemagick-enabled-types' also affects which
|
||
ImageMagick types are treated as images. The function
|
||
`imagemagick-filter-types' returns the list of types that will be
|
||
treated as images.
|
||
|
||
** Minibuffer
|
||
|
||
*** In minibuffer filename prompts, `C-M-f' and `C-M-b' now move to the
|
||
next and previous path separator, respectively.
|
||
|
||
*** `minibuffer-electric-default-mode' can shorten "(default ...)" to "[...]"
|
||
in minibuffer prompts. Just set `minibuffer-eldef-shorten-default'
|
||
non-nil before enabling the mode.
|
||
|
||
** Mode line
|
||
|
||
*** New option `mode-line-default-help-echo' specifies the help text
|
||
(shown in a tooltip or in the echo area) for any part of the mode line
|
||
that does not have its own specialized help text.
|
||
|
||
*** You can now click mouse-3 in the coding system indicator to invoke
|
||
`set-buffer-file-coding-system'.
|
||
|
||
** Server and client
|
||
|
||
*** emacsclient now obeys string values for `initial-buffer-choice',
|
||
if it is told to open a new frame without specifying any file to visit
|
||
or expression to evaluate.
|
||
|
||
*** New option `server-auth-key' specifies a shared server key.
|
||
|
||
** Emacs now generates backtraces on fatal errors.
|
||
On encountering a fatal error, Emacs now outputs a textual description
|
||
of the fatal signal, and a short backtrace on platforms like glibc
|
||
that support backtraces.
|
||
|
||
** `C-x C-q' is now bound to the new minor mode `read-only-mode'.
|
||
This minor mode replaces `toggle-read-only', which is now obsolete.
|
||
|
||
** Most `y-or-n' prompts now allow you to scroll the selected window.
|
||
Typing `C-v' or `M-v' at a y-or-n prompt scrolls forward or backward
|
||
respectively, without exiting from the prompt.
|
||
|
||
** In the Package Menu, newly-available packages are listed as "new",
|
||
and sorted above the other "available" packages by default.
|
||
|
||
** If your Emacs was built from a repository checkout, the new variable
|
||
`emacs-bzr-version' contains information about the bzr revision used.
|
||
|
||
** New option `create-lockfiles' specifies usage of lockfiles.
|
||
It defaults to t. Changing it to nil inhibits the creation of lock
|
||
files (use this with caution).
|
||
|
||
** New option `enable-remote-dir-locals', if non-nil, allows directory-local
|
||
variables on remote hosts.
|
||
|
||
** The entry for PCL-CVS has been removed from the Tools menu.
|
||
The PCL-CVS commands are still available via the keyboard.
|
||
|
||
** Using "unibyte: t" in Lisp source files is obsolete.
|
||
Use "coding: raw-text" instead.
|
||
|
||
** In the buffer made by `M-x report-emacs-bug', the `C-c m' binding
|
||
has been changed to `C-c M-i' (`report-emacs-bug-insert-to-mailer').
|
||
The previous binding, introduced in Emacs 24.1, was a mistake, because
|
||
`C-c LETTER' bindings are reserved for user customizations.
|
||
|
||
** Internationalization
|
||
|
||
*** New language environment: Persian.
|
||
|
||
*** New input method `vietnamese-vni'.
|
||
|
||
** Nextstep (GNUstep / OS X) port
|
||
|
||
*** Support for fullscreen and the frame parameter fullscreen.
|
||
|
||
*** A file dialog is used for open/save operations initiated from the
|
||
menu/toolbar.
|
||
|
||
|
||
* Editing Changes in Emacs 24.3
|
||
|
||
** Search and Replace
|
||
|
||
*** Non-regexp Isearch now performs "lax" space matching.
|
||
Each sequence of spaces in the supplied search string may match any
|
||
sequence of one or more whitespace characters, as specified by the
|
||
variable `search-whitespace-regexp'. (This variable is also used by a
|
||
similar existing feature for regexp Isearch.)
|
||
|
||
*** New Isearch command `M-s SPC' toggles lax space matching.
|
||
This applies to both ordinary and regexp Isearch.
|
||
|
||
*** New option `replace-lax-whitespace'.
|
||
If non-nil, `query-replace' uses flexible whitespace matching too.
|
||
The default is nil.
|
||
|
||
*** Global `M-s _' starts a symbol (identifier) incremental search,
|
||
and `M-s _' in Isearch toggles symbol search mode.
|
||
`M-s c' in Isearch toggles search case-sensitivity.
|
||
|
||
** Navigation commands
|
||
|
||
*** New binding `M-g c' for `goto-char'.
|
||
|
||
*** New binding `M-g TAB' for `move-to-column'.
|
||
|
||
*** `M-g TAB' (`move-to-column') prompts for a column number if called
|
||
interactively with no prefix arg. Previously, it moved to column 1.
|
||
|
||
** New option `yank-handled-properties' allows processing of text
|
||
properties on yanked text, in ways that are more general than just
|
||
removing them (as is done by `yank-excluded-properties').
|
||
|
||
** New option `delete-trailing-lines' specifies whether
|
||
M-x delete-trailing-whitespace should delete trailing lines at the end
|
||
of the buffer. It defaults to t.
|
||
|
||
** `C-u M-=' now counts lines/words/characters in the entire buffer.
|
||
|
||
** `C-x 8 RET' is now bound to `insert-char', which is now a command.
|
||
`ucs-insert' is now an obsolete alias for `insert-char'.
|
||
|
||
** The `z' key no longer has a binding in most special modes.
|
||
It used to be bound to `kill-this-buffer', but `z' is too easy to
|
||
accidentally type.
|
||
|
||
** New command `C-x r M-w' (`copy-rectangle-as-kill').
|
||
It copies the region-rectangle as the last rectangle kill.
|
||
|
||
** Registers
|
||
|
||
*** `C-x r +' is now overloaded to invoke `append-to-register'.
|
||
|
||
*** New option `register-separator' specifies the register containing
|
||
the text to put between collected texts for use with
|
||
M-x append-to-register and M-x prepend-to-register.
|
||
|
||
|
||
* Changes in Specialized Modes and Packages in Emacs 24.3
|
||
|
||
** Common Lisp emulation (CL)
|
||
|
||
*** CL's main entry is now (require 'cl-lib).
|
||
`cl-lib' is like the old `cl' except that it uses the namespace cleanly;
|
||
i.e., all its definitions have the "cl-" prefix (and internal definitions
|
||
use the "cl--" prefix).
|
||
|
||
If `cl' provided a feature under the name `foo', then `cl-lib'
|
||
provides it under the name `cl-foo' instead; with the exceptions of the
|
||
few `cl' definitions that had to use `foo*' to avoid conflicts with
|
||
pre-existing Elisp entities. These have been renamed to `cl-foo'
|
||
rather than `cl-foo*'.
|
||
|
||
The old `cl' is now deprecated and is mainly just a bunch of aliases that
|
||
provide the old, non-prefixed names. Some exceptions are listed below:
|
||
|
||
*** `cl-flet' is not like `flet' (which is deprecated).
|
||
Instead it obeys the behavior of Common-Lisp's `flet'.
|
||
In particular, in cl-flet function definitions are lexically scoped,
|
||
whereas in flet the scoping is dynamic.
|
||
|
||
*** `cl-labels' is slightly different from `labels'.
|
||
The difference is that it relies on the `lexical-binding' machinery
|
||
(as opposed to the `lexical-let' machinery used previously) to capture
|
||
definitions in closures, so such closures will only work if `lexical-binding'
|
||
is in use.
|
||
|
||
*** `cl-letf' is not exactly like `letf'.
|
||
The only difference is in details that relate to some deprecated usage
|
||
of `symbol-function' in place forms.
|
||
|
||
*** `progv' was rewritten to use the `let' machinery.
|
||
A side effect is that variables without corresponding values are bound
|
||
to nil rather than being made unbound.
|
||
|
||
*** The following methods of extending `setf' are obsolete
|
||
(use features from gv.el instead):
|
||
`define-modify-macro' (use `gv-letplace')
|
||
`defsetf' (use `gv-define-simple-setter' or `gv-define-setter')
|
||
`define-setf-expander' (use `gv-define-setter' or `gv-define-expander')
|
||
`get-setf-method' no longer exists (see "Incompatible Lisp Changes")
|
||
|
||
** Diff mode
|
||
|
||
*** Changes are now highlighted using the same color scheme as in
|
||
modern VCSes. Deletions are displayed in red (new faces
|
||
`diff-refine-removed' and `smerge-refined-removed', and new definition
|
||
of `diff-removed'), insertions in green (new faces `diff-refine-added'
|
||
and `smerge-refined-added', and new definition of `diff-added').
|
||
|
||
*** The variable `diff-use-changed-face' defines whether to use the
|
||
face `diff-changed', or `diff-removed' and `diff-added' to highlight
|
||
changes in context diffs.
|
||
|
||
*** The new command `diff-delete-trailing-whitespace' removes trailing
|
||
whitespace introduced by a diff.
|
||
|
||
** Ediff now uses the same color scheme as Diff mode.
|
||
|
||
** Python mode
|
||
|
||
A new version of python.el, which provides several new features, including:
|
||
per-buffer shells, better indentation, Python 3 support, and improved
|
||
shell-interaction compatible with iPython (and virtually any other
|
||
text based shell).
|
||
|
||
*** Some user options have been replaced/renamed, including (old -> new):
|
||
**** python-indent -> python-indent-offset
|
||
**** python-guess-indent -> python-indent-guess-indent-offset
|
||
**** python-pdbtrack-do-tracking-p -> python-pdbtrack-activate
|
||
**** python-use-skeletons -> python-skeleton-autoinsert
|
||
|
||
*** Some user options have been removed, including:
|
||
|
||
**** `python-indent-string-contents': Strings are never indented.
|
||
|
||
**** `python-honour-comment-indentation':
|
||
Comments are always considered as indentation markers.
|
||
|
||
**** `python-continuation-offset': Indentation is automatically
|
||
calculated in a pep8 compliant way depending on the context.
|
||
|
||
**** `python-shell-prompt-alist', `python-shell-continuation-prompt-alist':
|
||
Have no direct mapping as the shell interaction is completely different.
|
||
|
||
**** `python-python-command', `python-jython-command':
|
||
Replaced by `python-shell-interpreter'.
|
||
|
||
**** `inferior-python-filter-regexp', `python-remove-cwd-from-path',
|
||
`python-pdbtrack-minor-mode-string', `python-source-modes':
|
||
No longer relevant.
|
||
|
||
*** Some commands have been replaced (old -> new):
|
||
**** python-insert-class -> python-skeleton-class
|
||
**** python-insert-def -> python-skeleton-def
|
||
**** python-insert-for -> python-skeleton-for
|
||
**** python-insert-if -> python-skeleton-if
|
||
**** python-insert-try/except -> python-skeleton-try
|
||
**** python-insert-try/finally -> python-skeleton-try
|
||
**** python-insert-while -> python-skeleton-while
|
||
**** python-find-function -> python-nav-jump-to-defun
|
||
**** python-next-statement -> python-nav-forward-sentence
|
||
**** python-previous-statement -> python-nav-backward-sentence
|
||
**** python-beginning-of-defun-function -> python-nav-beginning-of-defun
|
||
**** python-end-of-defun-function -> python-nav-end-of-defun
|
||
**** python-send-buffer -> python-shell-send-buffer
|
||
**** python-send-defun -> python-shell-send-defun
|
||
**** python-send-region -> python-shell-send-region
|
||
**** python-send-region-and-go -> emulate with python-shell-send-region
|
||
and python-shell-switch-to-shell
|
||
**** python-send-string -> python-shell-send-string
|
||
**** python-switch-to-python -> python-shell-switch-to-shell
|
||
**** python-describe-symbol -> python-eldoc-at-point
|
||
|
||
** D-Bus
|
||
|
||
*** New variables `dbus-compiled-version' and `dbus-runtime-version'.
|
||
|
||
*** The D-Bus object manager interface is implemented.
|
||
|
||
*** Variables of type :(u)int32 and :(u)int64 accept floating points,
|
||
if their value does not fit into Emacs's integer range.
|
||
|
||
*** The function `dbus-call-method' is now non-blocking.
|
||
It can be interrupted by `C-g'. `dbus-call-method-non-blocking' is obsolete.
|
||
|
||
*** Signals can also be sent as unicast messages.
|
||
|
||
*** The argument list of `dbus-register-signal' has been extended,
|
||
according to the new match rule types of D-Bus.
|
||
|
||
*** `dbus-init-bus' supports private connections.
|
||
|
||
*** There is a new function `dbus-setenv'.
|
||
|
||
** `desktop-path' no longer includes the "." directory.
|
||
Desktop files are now located in ~/.emacs.d by default.
|
||
|
||
** Dired
|
||
|
||
*** `dired-do-async-shell-command' executes each file sequentially
|
||
if the command ends in `;' (when operating on multiple files).
|
||
Otherwise, it executes the command on each file in parallel.
|
||
|
||
*** Typing `M-n' in the minibuffer of `dired-do-chmod', `dired-do-chgrp',
|
||
`dired-do-chown', and `dired-do-touch' yanks the attributes of the
|
||
file at point.
|
||
|
||
*** When the region is active, `m' (`dired-mark'), `u' (`dired-unmark'),
|
||
`DEL' (`dired-unmark-backward'), and `d' (`dired-flag-file-deletion')
|
||
mark/unmark/flag all files in the active region.
|
||
|
||
*** The minibuffer default for `=' (`dired-diff') has changed.
|
||
It is now the backup file for the file at point, if one exists.
|
||
In Transient Mark mode the default is the file at the active mark.
|
||
|
||
*** `M-=' is no longer bound to `dired-backup-diff' in Dired buffers.
|
||
The global binding for `M-=', `count-words-region' is in effect.
|
||
|
||
** ERC
|
||
|
||
*** New module "notifications", which can send a notification when you
|
||
receive a private message or your nickname is mentioned.
|
||
|
||
*** ERC will look up server/channel names via auth-source and use any
|
||
channel keys found.
|
||
|
||
*** New option `erc-lurker-hide-list', similar to `erc-hide-list', but
|
||
only applies to messages sent by lurkers.
|
||
|
||
** reStructuredText mode
|
||
|
||
*** Keybindings (see `C-c C-h'), TAB indentation, filling and auto-filling,
|
||
fontification, comment handling, and customization have all been revised
|
||
and improved.
|
||
|
||
*** Support for `imenu' and `which-function-mode'.
|
||
|
||
*** The reStructuredText syntax is more closely covered.
|
||
Sphinx support has been improved.
|
||
|
||
*** `rst-insert-list' inserts new list or continues existing lists.
|
||
|
||
*** A negative prefix argument always works for `rst-adjust'.
|
||
|
||
*** The window configuration is reset after displaying a TOC.
|
||
|
||
*** The constant `rst-version' describes the rst.el package version.
|
||
|
||
** Ruby mode
|
||
|
||
*** Support for percent literals and recognition of regular expressions
|
||
in method calls without parentheses with more methods, including Cucumber
|
||
steps definitions.
|
||
|
||
*** Improved syntax highlighting and indentation.
|
||
|
||
*** New command `ruby-toggle-block', bound to `C-c {'.
|
||
|
||
*** Some non-standard keybindings/commands have been removed:
|
||
|
||
**** `ruby-electric-brace'; use `electric-indent-mode' instead.
|
||
|
||
**** `ruby-mark-defun'; use `mark-defun'.
|
||
|
||
**** `ruby-beginning-of-defun' and `ruby-end-of-defun' are replaced by
|
||
appropriate settings for the variables `beginning-of-defun-function'
|
||
and `end-of-defun-function'.
|
||
|
||
**** Non-standard keybindings for `backward-kill-word', `comment-region',
|
||
`reindent-then-newline-and-indent' and `newline' have been removed.
|
||
|
||
** Shell Script mode
|
||
|
||
*** Pairing of parens/quotes uses `electric-pair-mode' instead of skeleton-pair.
|
||
|
||
*** `sh-electric-here-document-mode' now controls auto-insertion of here-docs.
|
||
|
||
*** `sh-use-smie' lets you choose a new indentation and navigation code.
|
||
|
||
** VHDL mode
|
||
|
||
*** The free software compiler GHDL is supported (and now the default).
|
||
|
||
*** Support for the VHDL-AMS packages has been added/updated.
|
||
|
||
*** Updated to the 2002 revision of the VHDL standard.
|
||
|
||
*** Accepts \r and \f as whitespace.
|
||
|
||
** Apropos
|
||
|
||
*** The faces used by Apropos are now directly customizable.
|
||
These faces are named `apropos-symbol', `apropos-keybinding', and so on;
|
||
see the `apropos' Custom group for details.
|
||
|
||
*** The old options whose values specified faces to use have been removed
|
||
(i.e. `apropos-symbol-face', `apropos-keybinding-face', `apropos-label-face',
|
||
`apropos-match-face' and `apropos-property-face'.).
|
||
|
||
** Buffer Menu
|
||
|
||
*** This package has been rewritten to use Tabulated List mode.
|
||
|
||
*** Option `Buffer-menu-buffer+size-width' is now obsolete.
|
||
Use `Buffer-menu-name-width' and `Buffer-menu-size-width' instead.
|
||
|
||
** Calc
|
||
|
||
*** Algebraic simplification mode is now the default.
|
||
To restrict to the limited simplifications given by the former
|
||
default simplification mode, use `m I'.
|
||
|
||
** Calendar
|
||
|
||
*** You can customize the header text that appears above each calendar month.
|
||
See the variable `calendar-month-header'.
|
||
|
||
*** New LaTeX calendar style, produced by `cal-tex-cursor-week2-summary'.
|
||
|
||
*** The calendars produced by cal-html include holidays.
|
||
Customize `cal-html-holidays' to change this.
|
||
|
||
** CEDET
|
||
|
||
*** The major modes from the parser generators "Bovine" and "Wisent"
|
||
are now properly integrated in Emacs. The file suffixes ".by" and ".wy"
|
||
are in `auto-mode-alist', and the corresponding manuals are included.
|
||
|
||
*** EDE
|
||
|
||
**** Menu support for the "Configuration" feature. This allows users to
|
||
choose the active configuration (such as debug or install) from the menu.
|
||
|
||
**** New command `ede-set' to interactively set project-local variables.
|
||
|
||
**** Support for compiling, debugging, and running in "generic" projects.
|
||
|
||
**** Autoconf editing support for M4 macros with complex arguments.
|
||
|
||
**** Compilation support for the "linux" project type.
|
||
|
||
**** "simple" projects have been removed; use "generic" projects instead.
|
||
|
||
*** Semantic
|
||
|
||
**** Support for parsing #include statements inside a namespace in C/C++.
|
||
|
||
**** Improved support for 'extern "C"' declarations in C/C++.
|
||
|
||
**** The ability to ignore more common special C/C++ preprocessor symbols,
|
||
such as '__nonnull' and '__asm'. Add '__cplusplus' macro when parsing C++.
|
||
If available, include cdefs.h as an additional source of preprocessor symbols.
|
||
|
||
**** Improved C/C++ function pointer parsing.
|
||
|
||
**** In Python, support for converting imports to include file names.
|
||
|
||
**** Ability to dynamically determine the Python load path.
|
||
|
||
**** Support for the Python 'WITH' and 'AT' keywords.
|
||
|
||
**** Improved tooltip completion.
|
||
|
||
*** SRecode
|
||
|
||
**** The SRecode manual is now included.
|
||
|
||
**** Tag generation supports constructor/destructor settings and system
|
||
include differentiation.
|
||
|
||
**** Addition of 'Framework' support: Frameworks are specified when a
|
||
particular kind of library (such as Android) is needed in a common language
|
||
mode (like Java).
|
||
|
||
**** Support for nested templates and let variables override based on priority.
|
||
|
||
**** Support for merging tables from multiple related modes, such as
|
||
default -> c++ -> arduino.
|
||
|
||
** Compile has a new option `compilation-always-kill'.
|
||
|
||
** Customize
|
||
|
||
*** `custom-reset-button-menu' now defaults to t.
|
||
|
||
*** Non-option variables are never matched in `customize-apropos' and
|
||
`customize-apropos-options' (i.e., the prefix argument does nothing for
|
||
these commands now).
|
||
|
||
** Term
|
||
|
||
*** The variables `term-default-fg-color' and `term-default-bg-color'
|
||
are now deprecated in favor of the customizable face `term'.
|
||
|
||
*** You can customize how to display ANSI terminal colors and styles
|
||
by customizing the corresponding `term-color-<COLOR>',
|
||
`term-color-underline' and `term-color-bold' faces.
|
||
|
||
** Tramp
|
||
|
||
*** The syntax has been extended in order to allow ad-hoc proxy definitions.
|
||
|
||
*** Remote processes are now also supported on remote MS-Windows hosts.
|
||
|
||
** URL
|
||
|
||
*** Structs made by `url-generic-parse-url' have nil `attributes' slot.
|
||
Previously, this slot stored semicolon-separated attribute-value pairs
|
||
appended to some imap URLs, but this is not compatible with RFC 3986.
|
||
So now the `filename' slot stores the entire path and query components,
|
||
and the `attributes' slot is always nil.
|
||
|
||
*** New function `url-encode-url' for encoding a URI string.
|
||
The `url-retrieve' function now uses this to encode its URL argument,
|
||
in case that is not properly encoded.
|
||
|
||
** notifications.el supports now version 1.2 of the Notifications API.
|
||
The function `notifications-get-capabilities' returns the supported
|
||
server properties.
|
||
|
||
** Flymake uses fringe bitmaps to indicate errors and warnings.
|
||
See `flymake-fringe-indicator-position', `flymake-error-bitmap' and
|
||
`flymake-warning-bitmap'.
|
||
|
||
** The FFAP option `ffap-url-unwrap-remote' can now be a list of strings,
|
||
specifying URL types that should be converted to remote file names at
|
||
the FFAP prompt. The default is now '("ftp").
|
||
|
||
** New Ibuffer `derived-mode' filter, bound to `/ M'.
|
||
The old binding for `/ M' (filter by used-mode) is now bound to `/ m'.
|
||
|
||
** New option `mouse-avoidance-banish-position' specifies where the
|
||
`banish' mouse avoidance setting moves the mouse.
|
||
|
||
** In Perl mode, new option `perl-indent-parens-as-block' causes non-block
|
||
closing brackets to be aligned with the line of the opening bracket.
|
||
|
||
** In Proced mode, new command `proced-renice' renices marked processes.
|
||
|
||
** New option `async-shell-command-buffer' specifies the buffer to use
|
||
for a new asynchronous `shell-command' when the default output buffer
|
||
`*Async Shell Command*' is already in use.
|
||
|
||
** SQL mode has a new option `sql-db2-escape-newlines'.
|
||
If non-nil, newlines sent to the command interpreter will be escaped
|
||
by a backslash. The default does not escape the newlines and assumes
|
||
that the sql statement will be terminated by a semicolon.
|
||
|
||
** New command `tabulated-list-sort', bound to `S' in Tabulated List mode
|
||
(and modes that derive from it), sorts the column at point, or the Nth
|
||
column if a numeric prefix argument is given.
|
||
|
||
** `which-func-modes' now defaults to t, so Which Function mode, when
|
||
enabled, applies to all applicable major modes.
|
||
|
||
** `winner-mode-hook' now runs when the mode is disabled, as well as when
|
||
it is enabled.
|
||
|
||
** Follow mode no longer works by using advice.
|
||
The option `follow-intercept-processes' has been removed.
|
||
|
||
** `javascript-generic-mode' is now an obsolete alias for `js-mode'.
|
||
|
||
** Hooks renamed to avoid obsolete "-hooks" suffix:
|
||
*** semantic-lex-reset-hooks -> semantic-lex-reset-functions
|
||
*** semantic-change-hooks -> semantic-change-functions
|
||
*** semantic-edits-new-change-hooks -> semantic-edits-new-change-functions
|
||
*** semantic-edits-delete-change-hooks -> semantic-edits-delete-change-functions
|
||
*** semantic-edits-reparse-change-hooks -> semantic-edits-reparse-change-functions
|
||
*** semanticdb-save-database-hooks -> semanticdb-save-database-functions
|
||
*** c-prepare-bug-report-hooks -> c-prepare-bug-report-hook
|
||
*** rcirc-sentinel-hooks -> rcirc-sentinel-functions
|
||
*** rcirc-receive-message-hooks -> rcirc-receive-message-functions
|
||
*** rcirc-activity-hooks -> rcirc-activity-functions
|
||
*** rcirc-print-hooks -> rcirc-print-functions
|
||
*** dbus-event-error-hooks -> dbus-event-error-functions
|
||
*** eieio-pre-method-execution-hooks -> eieio-pre-method-execution-functions
|
||
*** checkdoc-style-hooks -> checkdoc-style-functions
|
||
*** checkdoc-comment-style-hooks -> checkdoc-comment-style-functions
|
||
*** archive-extract-hooks -> archive-extract-hook
|
||
*** filesets-cache-fill-content-hooks -> filesets-cache-fill-content-hook
|
||
*** hfy-post-html-hooks -> hfy-post-html-hook
|
||
*** nndiary-request-create-group-hooks -> nndiary-request-create-group-functions
|
||
*** nndiary-request-update-info-hooks -> nndiary-request-update-info-functions
|
||
*** nndiary-request-accept-article-hooks -> nndiary-request-accept-article-functions
|
||
*** gnus-subscribe-newsgroup-hooks -> gnus-subscribe-newsgroup-functions
|
||
|
||
** Obsolete packages
|
||
|
||
*** assoc.el
|
||
In most cases, assoc+member+push+delq work just as well.
|
||
And in any case it's just a terrible package: ugly semantics, terrible
|
||
inefficiency, and not namespace-clean.
|
||
*** bruce.el
|
||
*** cust-print.el
|
||
*** ledit.el
|
||
*** mailpost.el
|
||
*** mouse-sel.el
|
||
*** patcomp.el
|
||
|
||
|
||
* Incompatible Lisp Changes in Emacs 24.3
|
||
|
||
** Docstrings starting with `*' no longer indicate user options.
|
||
Only variables defined using `defcustom' are considered user options.
|
||
The function `user-variable-p' is now an obsolete alias for
|
||
`custom-variable-p'.
|
||
|
||
** The return values of `defalias', `defun' and `defmacro' have changed,
|
||
and are now undefined. For backwards compatibility, `defun' and
|
||
`defmacro' currently return the name of the newly defined
|
||
function/macro, but this should not be relied upon.
|
||
|
||
** `random' by default now returns a different random sequence in
|
||
every Emacs run. Use `(random S)', where S is a string, to set the
|
||
random seed to a value based on S, in order to get a repeatable
|
||
sequence in later calls.
|
||
|
||
** If the NEWTEXT arg to `replace-match' contains a substring "\?",
|
||
that substring is inserted literally even if the LITERAL arg is
|
||
non-nil, instead of causing an error to be signaled.
|
||
|
||
** `select-window' now always makes the window's buffer current.
|
||
It does so even if the window was selected before.
|
||
|
||
** The function `x-select-font' can return a font spec, instead of a
|
||
font name as a string. Whether it returns a font spec or a font name
|
||
depends on the graphical library.
|
||
|
||
** `face-spec-set' no longer sets frame-specific attributes when the
|
||
third argument is a frame (that usage was obsolete since Emacs 22.2).
|
||
|
||
** `set-buffer-multibyte' now signals an error in narrowed buffers.
|
||
|
||
** The CL package's `get-setf-method' function no longer exists.
|
||
Generalized variables are now part of core Emacs Lisp, and implemented
|
||
differently to the way cl.el used to do it. It is not possible to
|
||
define a compatible replacement for `get-setf-method'. See the file
|
||
gv.el for internal details of the new implementation.
|
||
|
||
** The arguments of `dbus-register-signal' are no longer just strings,
|
||
but keywords or keyword-string pairs. The old argument list will
|
||
still be supported for Emacs 24.x.
|
||
|
||
** Miscellaneous name changes
|
||
Some Lisp symbols have been renamed to correct their spelling,
|
||
or to be more consistent with standard Emacs terminology.
|
||
|
||
*** Renamed functions
|
||
**** hangul-input-method-inactivate -> hangul-input-method-deactivate
|
||
**** inactivate-input-method -> deactivate-input-method
|
||
**** quail-inactivate -> quail-deactivate
|
||
**** robin-inactivate -> robin-deactivate
|
||
**** viper-inactivate-input-method -> viper-deactivate-input-method
|
||
**** viper-inactivate-input-method-action ->
|
||
viper-deactivate-input-method-action
|
||
**** ucs-input-inactivate -> ucs-input-deactivate
|
||
|
||
*** Renamed hooks
|
||
The old hooks are still supported for backward compatibility, but they
|
||
are deprecated and will be removed eventually.
|
||
**** input-method-inactivate-hook -> input-method-deactivate-hook
|
||
**** robin-inactivate-hook -> robin-deactivate-hook
|
||
**** quail-inactivate-hook -> quail-deactivate-hook
|
||
|
||
*** Renamed variables
|
||
**** follow-deactive-menu -> follow-inactive-menu
|
||
**** inactivate-current-input-method-function ->
|
||
deactivate-current-input-method-function
|
||
|
||
** Some obsolete functions, variables, and faces have been removed:
|
||
*** `last-input-char', `last-command-char', `unread-command-char'
|
||
*** `facemenu-unlisted-faces'
|
||
*** `rmail-decode-mime-charset'
|
||
*** `iswitchb-read-buffer'
|
||
*** `sc-version', `sc-submit-bug-report'
|
||
*** `set-char-table-default'
|
||
*** `string-to-sequence' (use `string-to-list' or `string-to-vector')
|
||
*** `compile-internal'
|
||
*** `modeline'
|
||
*** `mode-line-inverse-video'
|
||
*** `follow-mode-off-hook'
|
||
*** `cvs-commit-buffer-require-final-newline'
|
||
(use `log-edit-require-final-newline' instead)
|
||
*** `cvs-changelog-full-paragraphs'
|
||
(use `log-edit-changelog-full-paragraphs' instead)
|
||
*** `cvs-diff-ignore-marks', `cvs-diff-buffer-name'
|
||
*** `vc-ignore-vc-files' (use `vc-handled-backends' instead)
|
||
*** `vc-master-templates' (use `vc-handled-backends' instead)
|
||
*** `vc-checkout-carefully'
|
||
|
||
|
||
* Lisp Changes in Emacs 24.3
|
||
|
||
** CL-style generalized variables are now in core Elisp.
|
||
`setf' is autoloaded; `push' and `pop' accept generalized variables.
|
||
You can define your own generalized variables using `gv-define-simple-setter',
|
||
`gv-define-setter', etc.
|
||
|
||
** Emacs tries to macroexpand interpreted (non-compiled) files during load.
|
||
This can significantly speed up execution of non-byte-compiled code,
|
||
but can also bump into previously unnoticed cyclic dependencies.
|
||
These are generally harmless: they will simply cause the macro calls
|
||
to be left for later expansion (as before), but will result in a
|
||
warning ("Eager macro-expansion skipped due to cycle") describing the cycle.
|
||
You may wish to restructure your code so this does not happen.
|
||
|
||
** New sampling-based Elisp profiler.
|
||
Try M-x profiler-start, do some work, and then call M-x profiler-report.
|
||
When finished, use M-x profiler-stop. The sampling rate can be based on
|
||
CPU time or memory allocations.
|
||
|
||
** `defun' also accepts a (declare DECLS) form, like `defmacro'.
|
||
The interpretation of the DECLS is determined by `defun-declarations-alist'.
|
||
|
||
** New macros `setq-local' and `defvar-local'.
|
||
|
||
** Face underlining can now use a wave.
|
||
|
||
** `read-regexp' has a new argument HISTORY; the first argument PROMPT
|
||
of `read-regexp' accepts a string ending with a colon and space, and its
|
||
second argument DEFAULTS can be a list of strings accessible via `M-n'
|
||
in the minibuffer ahead of other hard-coded useful regexp-related values.
|
||
More commands use `read-regexp' now to read their regexp arguments.
|
||
|
||
** Completion
|
||
|
||
*** New function `completion-table-with-quoting' to handle completion
|
||
in the presence of quoting, such as file completion in shell buffers.
|
||
|
||
*** New function `completion-table-subvert' to use an existing completion
|
||
table, but with a different prefix.
|
||
|
||
** Debugger
|
||
|
||
*** New error type and new function `user-error'.
|
||
These do not trigger the debugger.
|
||
|
||
*** New option `debugger-bury-or-kill', saying what to do with the
|
||
debugger buffer when exiting debug.
|
||
|
||
*** Set `debug-on-message' to enter the debugger when a certain
|
||
message is displayed in the echo area. This can be useful when trying
|
||
to work out which code is doing something.
|
||
|
||
*** New var `inhibit-debugger', automatically set to prevent accidental
|
||
recursive invocations.
|
||
|
||
** Window handling
|
||
|
||
*** New command `fit-frame-to-buffer' adjusts the frame height to
|
||
fit the contents.
|
||
|
||
*** The command `fit-window-to-buffer' can adjust the frame height
|
||
if the new option `fit-frame-to-buffer' is non-nil.
|
||
|
||
*** New macro `with-temp-buffer-window', similar to
|
||
`with-output-to-temp-buffer'.
|
||
|
||
*** `temp-buffer-resize-mode' no longer resizes windows that have been
|
||
reused.
|
||
|
||
*** New option `switch-to-buffer-preserve-window-point' to restore a
|
||
window's point when switching buffers.
|
||
|
||
*** New display action alist entries `window-height' and `window-width'
|
||
specify the size of new windows created by `display-buffer'.
|
||
|
||
*** New display action alist entry `pop-up-frame-parameters', if
|
||
non-nil, specifies frame parameters to give any newly-created frame.
|
||
|
||
*** New display action alist entry `inhibit-switch-frame', if non-nil,
|
||
tells display action functions to avoid changing which frame is
|
||
selected.
|
||
|
||
*** New display action alist entry `previous-window', if non-nil,
|
||
specifies window to reuse in `display-buffer-in-previous-window'.
|
||
|
||
*** New display action functions `display-buffer-below-selected',
|
||
and `display-buffer-in-previous-window'.
|
||
|
||
*** The functions `get-lru-window', `get-mru-window' and `get-largest-window'
|
||
now accept a third argument to avoid choosing the selected window.
|
||
|
||
*** Additional values recognized for option `window-combination-limit'.
|
||
|
||
*** The following variables are obsolete, as they can be replaced by
|
||
appropriate entries in the `display-buffer-alist' function introduced
|
||
in Emacs 24.1:
|
||
**** `dired-shrink-to-fit'
|
||
**** `display-buffer-reuse-frames'
|
||
**** `display-buffer-function'
|
||
**** `special-display-buffer-names'
|
||
**** `special-display-frame-alist'
|
||
**** `special-display-function'
|
||
**** `special-display-regexps'
|
||
|
||
** Time
|
||
|
||
*** `current-time-string' no longer requires that its argument's year
|
||
must be in the range 1000..9999. It now works with any year supported
|
||
by the underlying C implementation.
|
||
|
||
*** `current-time' now returns extended-format time stamps
|
||
(HIGH LOW USEC PSEC), where the new PSEC slot specifies picoseconds.
|
||
PSEC is typically a multiple of 1000 on current machines. Other
|
||
functions that use this format, such as `file-attributes' and
|
||
`format-time-string', have been changed accordingly. Old-format time
|
||
stamps are still accepted.
|
||
|
||
*** The format of timers in `timer-list' and `timer-idle-list' is now
|
||
[TRIGGERED-P HI-SECS LO-SECS USECS REPEAT-DELAY FUNCTION ARGS IDLE-DELAY PSECS].
|
||
The PSECS slot is new, and uses picosecond resolution. It can be
|
||
accessed via the new `timer--psecs' accessor.
|
||
|
||
*** Last-modified time stamps in undo lists now are of the form
|
||
(t HI-SECS LO-SECS USECS PSECS) instead of (t HI-SECS . LO-SECS).
|
||
|
||
** EIEIO
|
||
|
||
*** Improved security when handling persistent objects:
|
||
|
||
**** `eieio-persistent-read' now features optional arguments for specifying
|
||
the class to load, as well as a flag stating whether subclasses are allowed;
|
||
if provided, other classes will be rejected by the reader. For
|
||
compatibility with existing code, if the class is omitted only a
|
||
warning is issued.
|
||
|
||
**** New specialized reader for pulling in classes and signaling errors
|
||
without evaluation of suspicious code.
|
||
|
||
**** All slots that contain objects must have a :type. Slots with lists
|
||
of objects must use a new type predicate for a list of an object type.
|
||
|
||
*** Support for `find-function' and similar utilities, through the addition
|
||
of filename support to generated symbols.
|
||
|
||
** Floating point functions now always return special values like NaN,
|
||
instead of signaling errors, if given invalid args; e.g., (log -1.0).
|
||
Previously, they returned NaNs on some platforms but signaled errors
|
||
on others. The affected functions are acos, asin, tan, exp, expt,
|
||
log, log10, sqrt, and mod.
|
||
|
||
** New fringe bitmap `exclamation-mark'.
|
||
|
||
** Miscellaneous changes to special forms and macros
|
||
|
||
*** `defun' and `defmacro' are now macros rather than special forms.
|
||
|
||
*** `kbd' is now a function rather than a macro.
|
||
|
||
** Miscellaneous new functions
|
||
|
||
*** `set-temporary-overlay-map' sets up a temporary keymap that
|
||
takes precedence over most other maps for a short while (normally one key).
|
||
|
||
*** `autoloadp' tests if its argument is an autoloaded object.
|
||
|
||
*** `autoload-do-load' performs the autoloading operation.
|
||
|
||
*** `buffer-narrowed-p' tests if the buffer is narrowed.
|
||
|
||
*** `file-name-base' returns a file name sans directory and extension.
|
||
|
||
*** `function-get' fetches a function property, following aliases.
|
||
|
||
*** `posnp' tests if an object is a `posn'.
|
||
|
||
*** `system-users' returns the user names on the system.
|
||
|
||
*** `system-groups' returns the group names on the system.
|
||
|
||
*** `tty-top-frame' returns the topmost frame of a text terminal.
|
||
|
||
** The following functions and variables are obsolete:
|
||
*** `automount-dir-prefix' (use `directory-abbrev-alist')
|
||
*** `buffer-has-markers-at'
|
||
*** `macro-declaration-function' (use `macro-declarations-alist')
|
||
*** `window-system-version' (provides no useful information)
|
||
*** `dired-pop-to-buffer' (use `dired-mark-pop-up')
|
||
*** `query-replace-interactive'
|
||
*** `font-list-limit' (has had no effect since Emacs < 23)
|
||
|
||
|
||
* Changes in Emacs 24.3 on Non-Free Operating Systems
|
||
|
||
** Cygwin builds can use the native MS Windows user interface.
|
||
Pass `--with-w32' to configure. The default remains the X11 interface.
|
||
|
||
** Two new functions are available in Cygwin builds:
|
||
`cygwin-convert-file-name-from-windows' and
|
||
`cygwin-convert-file-name-to-windows'. These functions allow Lisp
|
||
code to access the Cygwin file-name mapping machinery to convert
|
||
between Cygwin and Windows-native file and directory names.
|
||
|
||
** When invoked with the -nw switch to run on the Windows text-mode terminal,
|
||
Emacs now supports `mouse-highlight', help-echo (in the echo area), and
|
||
`mouse-autoselect-window'.
|
||
|
||
** On MS Windows Vista and later Emacs now supports symbolic links.
|
||
|
||
** On MS Windows, you can pass `--without-libxml2' to configure.bat to omit
|
||
support for libxml2, even if its presence is detected.
|
||
|
||
** On OS X, the Nextstep port requires Mac OS X 10.4 or later.
|
||
|
||
** On OS X, configure no longer automatically adds the Fink "/sw"
|
||
directories to the search path. You must add them yourself if you want them.
|
||
|
||
|
||
* Changes in Emacs 24.2
|
||
|
||
** This is mainly a bug-fix release.
|
||
|
||
|
||
* Installation Changes in Emacs 24.1
|
||
|
||
** Emacs can be compiled with Gtk+ 3.0 if you pass --with-x-toolkit=gtk3
|
||
to configure. Note that other libraries used by Emacs, RSVG and GConf,
|
||
also depend on Gtk+. You can disable them with --without-rsvg and
|
||
--without-gconf.
|
||
|
||
** Emacs can be compiled with GnuTLS support.
|
||
This happens by default if a suitably recent version of the library is
|
||
found at build time. To prevent this, use the configure option
|
||
`--without-gnutls'. See below for GnuTLS features.
|
||
|
||
** Emacs can be compiled with SELinux support.
|
||
This happens by default if a suitably recent version of the library is
|
||
found at build time. To prevent this, use the configure option
|
||
`--without-selinux'. See below for SELinux features.
|
||
|
||
** Emacs can be compiled with ImageMagick support.
|
||
This happens by default if a suitably recent version of the library is
|
||
found at build time. To prevent this, use the configure option
|
||
`--without-imagemagick'. See below for ImageMagick features.
|
||
This feature is not available for the Nextstep or MS ports.
|
||
|
||
** Emacs can be compiled with libxml2 support.
|
||
This happens by default if a suitably recent version of the library is
|
||
found at build time. To prevent this, use the configure option
|
||
`--without-xml2'. See below for libxml2 features.
|
||
|
||
** By default, the installed Info and man pages are compressed.
|
||
You can disable this by configuring --without-compress-info.
|
||
|
||
** New configure option --with-wide-int.
|
||
With it, Emacs integers typically have 62 bits, even on 32-bit machines.
|
||
On 32-bit hosts, this raises the limit on buffer sizes from about 512 MiB
|
||
to about 2 GiB.
|
||
|
||
** New configure options: --with-mmdf, --with-mail-unlink, --with-mailhost.
|
||
These provide no new functionality, they just remove the need to edit
|
||
lib-src/Makefile by hand in order to use the associated features.
|
||
|
||
** New configure option --enable-use-lisp-union-type.
|
||
This is only useful for Emacs developers to debug certain types of bugs.
|
||
This is not a new feature; only the configure flag is new.
|
||
|
||
** The standalone programs digest-doc and sorted-doc are removed.
|
||
Emacs now uses Lisp commands `doc-file-to-man' and `doc-file-to-info'.
|
||
|
||
** The standalone program `fakemail' is removed.
|
||
If you need it, feedmail.el provides a superset of the functionality.
|
||
|
||
|
||
* Startup Changes in Emacs 24.1
|
||
|
||
** The --unibyte, --multibyte, --no-multibyte, and --no-unibyte
|
||
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. This option does not affect the
|
||
EMACSLOADPATH environment variable (and hence has no effect for
|
||
Nextstep builds).
|
||
|
||
|
||
* Changes in Emacs 24.1
|
||
|
||
** Completion
|
||
|
||
*** Many packages now use the `completion-at-point' command,
|
||
rather than implementing separate completion commands.
|
||
|
||
*** `completion-at-point' now handles tags and semantic completion.
|
||
|
||
*** Completion in a non-minibuffer now tries to detect the end of completion
|
||
and pops down the *Completions* buffer accordingly.
|
||
|
||
*** New option `completion-cycle-threshold' allows completion cycling.
|
||
|
||
*** New option `completion-category-overrides' for overriding the
|
||
default completion style in certain circumstances.
|
||
|
||
*** New completion style `substring'.
|
||
|
||
*** Completion of buffer names uses `substring' completion by default.
|
||
|
||
*** The option `widget-complete-field' has been removed.
|
||
|
||
** Mail changes
|
||
|
||
*** The first time you try sending mail, Emacs asks for a mail method.
|
||
This is implemented by a new default for `send-mail-function', which
|
||
is `sendmail-query-once'. This offers to use the smtpmail package, or
|
||
to use the old defaults relying on external mail facilities
|
||
(`sendmail-send-it' on GNU/Linux and other Unix-like systems, and
|
||
`mailclient-send-it' on Windows).
|
||
|
||
*** Typing `C-c m' in the buffer made by `M-x report-emacs-bug'
|
||
transfers the report to your desktop's preferred mail client, if there
|
||
is one. This uses either the "xdg-email" utility, or Mac OS's "open"
|
||
command.
|
||
|
||
*** See Changes in Specialized Modes and Packages for SMTPmail changes
|
||
and Mail mode changes
|
||
|
||
** Emacs server and client changes
|
||
|
||
*** New option `server-port' specifies the port for TCP Emacs servers.
|
||
|
||
*** New emacsclient argument -q/--quiet suppresses some status messages.
|
||
|
||
*** New emacsclient argument --frame-parameters specifies the frame
|
||
parameters of any newly-created graphical frame.
|
||
|
||
*** If emacsclient shuts down due to Emacs signaling an error,
|
||
its exit status is 1.
|
||
|
||
*** New emacsclient argument --parent-id ID.
|
||
This opens a client frame in parent X window ID, via XEmbed, similar
|
||
to the --parent-id argument to Emacs.
|
||
|
||
** Internationalization changes
|
||
|
||
*** Emacs now supports display and editing of bidirectional text.
|
||
Right-to-left (RTL) scripts, such as Arabic, Farsi, and Hebrew, are
|
||
displayed in the correct visual order as expected by users of those
|
||
scripts. The display reordering is a "full bidirectionality" class
|
||
implementation of the Unicode Bidirectional Algorithm (UBA). Buffers
|
||
with no RTL text should look exactly the same as before.
|
||
|
||
**** New buffer-local variable `bidi-display-reordering'.
|
||
To disable display reordering in a buffer, change this to nil.
|
||
|
||
**** New buffer-local variable `bidi-paragraph-direction'.
|
||
If nil (the default), Emacs determines the base direction of each
|
||
paragraph from its text, as specified by the UBA. Setting the value
|
||
to `right-to-left' or `left-to-right' forces a base direction on each
|
||
paragraph.
|
||
|
||
Paragraphs with right-to-left base direction are displayed starting at
|
||
the right window edge.
|
||
|
||
*** Enhanced support for characters with no glyphs in available fonts,
|
||
or, on text terminals, characters that cannot be encoded by the
|
||
terminal coding system. The new option `glyphless-char-display-control'
|
||
specifies how to display them: as a hexadecimal code in a box, a thin
|
||
1-pixel space, an empty box, etc.
|
||
|
||
*** New input methods for Farsi and Bulgarian
|
||
(farsi-isiri-9147, farsi-transliterate-banan, bulgarian-alt-phonetic).
|
||
|
||
*** `nobreak-char-display' now also highlights Unicode hyphen chars
|
||
(U+2010 and U+2011).
|
||
|
||
*** New Hebrew translation of the Emacs Tutorial.
|
||
Type `C-u C-h t' to choose it in case your language setup doesn't
|
||
automatically select it.
|
||
|
||
** An Emacs Lisp package manager is now included.
|
||
This is a convenient way to download and install additional packages,
|
||
from a package repository at https://elpa.gnu.org.
|
||
|
||
*** M-x list-packages shows a list of packages, which can be
|
||
selected for installation.
|
||
|
||
*** New command `describe-package', bound to `C-h P'.
|
||
|
||
*** By default, all installed packages are loaded automatically when
|
||
Emacs starts up. To disable this, set `package-enable-at-startup' to
|
||
nil. To specify the packages to load, customize `package-load-list'.
|
||
|
||
** Custom theme changes
|
||
|
||
*** New command `M-x customize-themes', which provides a convenient
|
||
interface for enabling and disabling Custom themes.
|
||
|
||
*** New option `custom-theme-load-path' is the load path for themes.
|
||
Emacs no longer looks for Custom themes in `load-path'. The default
|
||
value of `custom-theme-load-path' says to look for themes in
|
||
`custom-theme-directory', followed by a subdirectory of
|
||
`data-directory' named "themes/", which contains a small selection of
|
||
built-in Custom themes.
|
||
|
||
*** 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.
|
||
|
||
** Improved GTK integration
|
||
|
||
*** GTK scroll-bars are now placed on the right by default.
|
||
The function `set-scroll-bar-mode' can change this.
|
||
|
||
*** GTK tool bars can have just text, just images or images and text.
|
||
Customize `tool-bar-style' to choose the style. On a Gnome desktop,
|
||
the default is taken from desktop settings.
|
||
|
||
*** GTK tool bars can be placed on any edge of the frame.
|
||
The frame-parameter tool-bar-position controls this. It takes the
|
||
values top, left, right or bottom. The Options => Show/Hide menu has
|
||
entries for this.
|
||
|
||
*** The default colors for selected text (the `region' face) are taken
|
||
from the GTK theme when Emacs is built with GTK.
|
||
|
||
*** Emacs uses GTK tooltips by default if built with GTK.
|
||
You can disable this by changing `x-gtk-use-system-tooltips' to nil.
|
||
|
||
** Graphical interface changes
|
||
|
||
*** On graphical displays, the mode-line no longer ends in dashes.
|
||
Also, the first dash (which does not indicate anything) is just
|
||
displayed as a space.
|
||
|
||
*** `menu-bar-select-buffer-function' lets you choose another operation
|
||
instead of `switch-to-buffer' when selecting an item in the Buffers menu.
|
||
|
||
*** Lucid menus and dialogs can display antialiased fonts if Emacs is
|
||
built with Xft. These fonts can be set via X resources, for example:
|
||
Emacs.pane.menubar.font: Courier-12
|
||
|
||
** Exiting changes
|
||
|
||
*** Emacs now calls `kill-emacs' if it receives SIGTERM or SIGHUP,
|
||
or if it receives a SIGINT signal in batch mode.
|
||
|
||
*** `kill-emacs-hook' is now also run in batch mode.
|
||
Third-party code which adds to `kill-emacs-hook' should check if they
|
||
do the right thing in batch mode.
|
||
|
||
** Scrolling changes
|
||
|
||
*** New scrolling commands `scroll-up-command' and `scroll-down-command'
|
||
(bound to C-v/[next] and M-v/[prior]) do not signal errors at top/bottom
|
||
of buffer at first key-press (instead they move to top/bottom of buffer)
|
||
when `scroll-error-top-bottom' is non-nil.
|
||
|
||
*** New option `scroll-error-top-bottom' (see above).
|
||
|
||
*** New scrolling commands `scroll-up-line' and `scroll-down-line'
|
||
scroll a line instead of full screen.
|
||
|
||
*** New property `scroll-command' should be set on a command's symbol to
|
||
define it as a scroll command affected by `scroll-preserve-screen-position'.
|
||
|
||
*** If you customize `scroll-conservatively' to a value greater than 100,
|
||
Emacs will never recenter point in the window when it scrolls due to
|
||
cursor motion commands or commands that move point (e.f., `M-g M-g').
|
||
Previously, you needed to use `most-positive-fixnum' as the value of
|
||
`scroll-conservatively' to achieve the same effect.
|
||
|
||
*** "Aggressive" scrolling now honors the scroll margins.
|
||
If you customize `scroll-up-aggressively' or
|
||
`scroll-down-aggressively' and move point off the window, Emacs now
|
||
scrolls the window so as to avoid positioning point inside the scroll
|
||
margin.
|
||
|
||
** Basic SELinux support has been added.
|
||
This requires Emacs to be linked with libselinux at build time.
|
||
|
||
*** Emacs preserves the SELinux file context when backing up.
|
||
Also, the function `copy-file' has an extra optional argument for
|
||
preserving SELinux context, and the return value of `backup-buffer'
|
||
now includes the SELinux context.
|
||
|
||
*** New functions `file-selinux-context' and `set-file-selinux-context'
|
||
get and set the SELinux context of a file.
|
||
|
||
** Trash changes
|
||
|
||
*** `delete-by-moving-to-trash' now only affects commands that specify
|
||
trashing. This avoids inadvertently trashing temporary files.
|
||
|
||
*** Calling `delete-file' or `delete-directory' with a prefix argument
|
||
now forces true deletion, regardless of `delete-by-moving-to-trash'.
|
||
|
||
** File- and directory-local variable changes
|
||
|
||
*** You can stop directory local vars from applying to subdirectories.
|
||
Add an element (subdirs . nil) to the alist portion of any variables
|
||
settings to indicate that the section should not apply to
|
||
subdirectories.
|
||
|
||
*** Directory local variables can apply to some file-less buffers.
|
||
Affected modes include dired, vc-dir, and log-edit. For example,
|
||
adding "(diff-mode . ((mode . whitespace)))" to .dir-locals.el will
|
||
turn on `whitespace-mode' for *vc-diff* buffers. Modes should call
|
||
`hack-dir-local-variables-non-file-buffer' to support this.
|
||
|
||
*** Using "mode: MINOR-MODE" to enable a minor mode is deprecated.
|
||
Instead, use "eval: (minor-mode 1)".
|
||
|
||
*** The variable `inhibit-first-line-modes-regexps' has been renamed
|
||
to `inhibit-local-variables-regexps'. As the name suggests, it now
|
||
applies to ALL file local variables, not just -*- lines. The
|
||
associated `inhibit-first-line-modes-suffixes' has been renamed in the
|
||
corresponding way.
|
||
|
||
** Window changes
|
||
|
||
*** The `quit-window' command now restores the last buffer displayed
|
||
in the quitted window.
|
||
|
||
*** Resizing an Emacs frame now preserves proportional window sizes,
|
||
modulo restrictions like window minimum sizes and fixed-size windows.
|
||
|
||
*** The behavior of `display-buffer' is now customizable in detail.
|
||
|
||
**** New option `display-buffer-base-action' specifies a list of
|
||
user-determined display "actions" (functions and optional arguments
|
||
for choosing the displaying window).
|
||
|
||
This takes precedence over the default display action, which is
|
||
specified by `display-buffer-fallback-action'.
|
||
|
||
**** New option `display-buffer-alist' maps buffer name regexps to
|
||
display actions, taking precedence over `display-buffer-base-action'.
|
||
|
||
*** New option `window-combination-limit'.
|
||
The new option `window-combination-limit' allows to return the space
|
||
obtained for resizing or creating a window more reliably to the window
|
||
from which such space was obtained.
|
||
|
||
*** New option `window-combination-resize'.
|
||
The new option `window-combination-resize' allows to split a window that
|
||
otherwise cannot be split because it's too small by stealing space from
|
||
other windows in the same combination. Subsequent resizing or deletion
|
||
of the window will resize all windows in the same combination as well.
|
||
|
||
*** New option `frame-auto-hide-function' lets you choose between
|
||
iconifying or deleting a frame when burying a buffer in a dedicated
|
||
frame, or quitting a window showing a buffer in a frame of its own.
|
||
|
||
*** New commands `maximize-window' and `minimize-window'.
|
||
These maximize and minimize the size of a window within its frame.
|
||
|
||
*** New commands `switch-to-prev-buffer' and `switch-to-next-buffer'.
|
||
These functions allow to navigate through the live buffers that have
|
||
been shown in a specific window.
|
||
|
||
** Minibuffer changes
|
||
|
||
*** The inactive minibuffer has its own major mode `minibuffer-inactive-mode'.
|
||
This is handy for minibuffer-only frames, and is also used for the feature
|
||
where mouse-1 pops up *Messages*"', which can now easily be changed.
|
||
|
||
*** Minibuffers set `truncate-lines' to nil.
|
||
If you want to change the value to something else, you could use
|
||
for example `minibuffer-setup-hook'.
|
||
|
||
** `auto-mode-case-fold' is now enabled by default.
|
||
|
||
** `backup-by-copying-when-mismatch' now defaults to t.
|
||
|
||
** New basic faces `error', `warning', `success'.
|
||
These are used to highlight text indicating failure, caution or
|
||
successful operation.
|
||
|
||
** New option `list-colors-sort' defines the color sort order
|
||
for `list-colors-display'.
|
||
|
||
** The variable `focus-follows-mouse' now always defaults to nil.
|
||
|
||
|
||
* Editing Changes in Emacs 24.1
|
||
|
||
** Search changes
|
||
|
||
*** C-y in Isearch is now bound to `isearch-yank-kill', instead of
|
||
`isearch-yank-line'.
|
||
|
||
*** M-y in Isearch is now bound to `isearch-yank-pop', instead of
|
||
`isearch-yank-kill'.
|
||
|
||
*** M-s C-e in Isearch is now bound to `isearch-yank-line'.
|
||
|
||
** New commands `count-words-region' and `count-words'.
|
||
|
||
*** M-= is bound to `count-words-region', not `count-lines-region'.
|
||
The `count-words-region' command, when called interactively, reports
|
||
the number of lines, words, and characters in the region. It is a
|
||
superset of the old `count-lines-region', which is now an obsolete
|
||
alias for it.
|
||
|
||
** The command `just-one-space' (M-SPC), if given a negative argument,
|
||
also deletes newlines around point.
|
||
|
||
** Deletion changes
|
||
|
||
*** New option `delete-active-region'.
|
||
If non-nil, [delete] and DEL delete the region if it is active and no
|
||
prefix argument is given. If set to `kill', those commands kill
|
||
instead.
|
||
|
||
*** New command `delete-forward-char', bound to [delete].
|
||
This is meant for interactive use, and obeys `delete-active-region'.
|
||
The command `delete-char' does not obey `delete-active-region'.
|
||
|
||
*** `delete-backward-char' is now a Lisp function.
|
||
Apart from obeying `delete-active-region', its behavior is unchanged.
|
||
However, the byte compiler now warns if it is called from Lisp; Lisp
|
||
callers should use delete-char with a negative argument instead.
|
||
|
||
*** The option `mouse-region-delete-keys' has been deleted.
|
||
|
||
** Selection changes.
|
||
|
||
The default handling of clipboard and primary selections has been
|
||
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.
|
||
|
||
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.
|
||
|
||
*** `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).
|
||
|
||
**** `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.
|
||
|
||
**** `mouse-drag-copy-region' now defaults to nil.
|
||
|
||
*** 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'.
|
||
|
||
*** `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.
|
||
|
||
**** The "Copy", "Cut", and "Paste" items in the "Edit" menu are now
|
||
exactly equivalent to M-w, C-w, and C-y respectively.
|
||
|
||
**** 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.
|
||
|
||
*** To return to the previous behavior, do the following:
|
||
|
||
**** Change `select-active-regions' 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.
|
||
|
||
*** X clipboard managers are now supported.
|
||
To inhibit this, change `x-select-enable-clipboard-manager' to nil.
|
||
|
||
** New command `C-x r N' (`rectangle-number-lines') numbers the lines
|
||
in the current rectangle. With a prefix argument, this prompts for a
|
||
number to count from and for a format string.
|
||
|
||
** `redisplay-dont-pause' now defaults to t.
|
||
This makes Emacs feel more responsive to editing commands that arrive
|
||
at high rate, e.g. if you lean on some key, because stopping redisplay
|
||
in the middle (when this variable is nil) forces more expensive
|
||
updates later on, and Emacs appears to be unable to keep up.
|
||
|
||
** The behavior of <TAB> for active regions in Text mode has changed.
|
||
In Text and related modes, typing <TAB> (`indent-for-tab-command')
|
||
when the region is active causes Emacs to indent all the lines in the
|
||
region, aligning them with the line previous to the first line in the
|
||
region (or with the left margin if there is no previous line).
|
||
|
||
** When `occur' is called with a prefix argument, matching strings are
|
||
collected into the `*Occur*' buffer without line numbers. If there
|
||
are parenthesized subexpressions in the specified regexp, `occur'
|
||
reads replacement text that may contain \\& and \\N whose convention
|
||
follows `replace-match'.
|
||
|
||
|
||
* Changes in Specialized Modes and Packages in Emacs 24.1
|
||
|
||
** Archive Mode has basic support for browsing and updating 7z archives.
|
||
|
||
** BibTeX mode
|
||
|
||
*** BibTeX mode now supports biblatex.
|
||
Use the variable `bibtex-dialect' to select different BibTeX dialects.
|
||
`bibtex-entry-field-alist' is now an obsolete alias for
|
||
`bibtex-BibTeX-entry-alist'.
|
||
|
||
*** New command `bibtex-search-entries', bound to C-c C-a.
|
||
|
||
*** New `bibtex-entry-format' option `sort-fields', disabled by default.
|
||
|
||
*** New variable `bibtex-search-entry-globally'.
|
||
|
||
** Browse-url
|
||
|
||
*** New option `browse-url-mailto-function' specifies how to handle "mailto:"s.
|
||
|
||
*** The default browser used by the package is now the "xdg-open" program,
|
||
on platforms that support it. This calls your desktop's preferred browser.
|
||
|
||
** Calc
|
||
|
||
*** Support for musical notes.
|
||
|
||
*** Support for logarithmic units.
|
||
|
||
*** No longer uses the tex prefix for TeX specific unit names when
|
||
using TeX or LaTeX mode.
|
||
|
||
*** New option to highlight selections using faces.
|
||
|
||
*** `calc-histogram' has the option of using a vector to determine the bins.
|
||
|
||
*** New "O" option prefix.
|
||
|
||
*** Use the "O" prefix to "d r" (`calc-radix') to turn on twos-complement mode.
|
||
|
||
** Calendar, Diary, and Appt
|
||
|
||
*** Diary entries can contain non-printing "comments".
|
||
See the variable `diary-comment-start'.
|
||
|
||
*** Appointments can specify their individual warning times.
|
||
See the variable `appt-warning-time-regexp'.
|
||
|
||
*** The function specified by `appt-disp-window-function' may be passed
|
||
lists of arguments if multiple appointments are due at similar times.
|
||
If you are using a custom function for this, you should update it.
|
||
|
||
*** New function `diary-hebrew-birthday'.
|
||
|
||
*** Elements of `calendar-day-abbrev-array' and `calendar-month-abbrev-array'
|
||
may no longer be nil, but must all be strings.
|
||
|
||
*** The obsolete (since Emacs 22.1) method of enabling the appt
|
||
package by adding `appt-make-list' to `diary-hook' has been removed.
|
||
Use `appt-activate' instead.
|
||
|
||
*** Some appt variables (obsolete since Emacs 22.1) have been removed:
|
||
appt-issue-message (use the function appt-activate)
|
||
appt-visible/appt-msg-window (use the variable appt-display-format)
|
||
|
||
*** Some diary function aliases (obsolete since Emacs 22.1) have been removed:
|
||
view-diary-entries, list-diary-entries, show-all-diary-entries
|
||
|
||
** CC Mode
|
||
|
||
*** New feature to "guess" the style in an existing buffer.
|
||
The main entry point is M-x c-guess.
|
||
|
||
*** Java Mode now supports Java 5.0 (Tiger) and 6 (Mustang).
|
||
|
||
*** `c-beginning-of-defun' and `c-end-of-defun' now respect nested scopes.
|
||
Thus C-M-a will, by default, go to the beginning of the immediate function,
|
||
not the top level.
|
||
|
||
*** "Macros with semicolons" can be registered for correct indentation.
|
||
Where such a macro ends a line (no semicolon) the next statement is no longer
|
||
parsed as a statement continuation.
|
||
|
||
** Comint and modes derived from it use the standard completion code.
|
||
|
||
** Compilation mode
|
||
|
||
*** Compilation mode can be used without Font Lock mode.
|
||
`compilation-parse-errors-function' is now obsolete.
|
||
|
||
*** New variable `compilation-filter-start', which is bound while
|
||
`compilation-filter-hook' runs. It records the start position of the
|
||
text inserted by `compilation-filter'.
|
||
|
||
*** `compilation-error-screen-columns' and `compilation-first-column'
|
||
are obeyed in the editing buffer. So programming language modes can
|
||
set them, whereas previously only the value in the *Compilation*
|
||
buffer was used.
|
||
|
||
** Customize
|
||
|
||
*** Customize buffers now contain a search field.
|
||
The search is performed using `customize-apropos'.
|
||
To turn off the search field, set `custom-search-field' to nil.
|
||
|
||
*** Options in customize group buffers start out hidden if not customized.
|
||
Use the arrow to the left of the option name to toggle visibility.
|
||
|
||
*** custom-buffer-sort-alphabetically now defaults to t.
|
||
|
||
*** The color widget now has a "Choose" button, which allows you to
|
||
choose a color via `list-colors-display'.
|
||
|
||
** D-Bus
|
||
|
||
*** It is now possible to access buses other than the default system
|
||
or session bus.
|
||
|
||
*** The `dbus-register-method' and `dbus-register-property' functions
|
||
optionally do not register names.
|
||
|
||
*** The new function `dbus-register-service' registers a known service
|
||
name on a D-Bus without also registering a property or a method.
|
||
|
||
** Dired-x
|
||
|
||
*** C-x C-j (`dired-jump') and C-x 4 C-j (`dired-jump-other-window'),
|
||
if called with a prefix argument, read a file name from the minibuffer
|
||
instead of using the current buffer.
|
||
|
||
*** The "dired local variables" feature of Dired-x is obsolete.
|
||
The standard directory local variables feature replaces it.
|
||
|
||
** ERC changes
|
||
|
||
*** New options `erc-autojoin-timing' and `erc-autojoin-delay',
|
||
controlling attempts to autojoin a channel.
|
||
|
||
*** New variable `erc-coding-system-precedence': If we use `undecided'
|
||
as the server coding system, this variable will then be consulted.
|
||
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' has changed
|
||
to be an "eshell" directory in `user-emacs-directory'.
|
||
The old "~/.eshell/" directory is still used if it exists, though.
|
||
|
||
** gdb-mi
|
||
|
||
*** The M-x gdb command now uses the GDB Machine Interface protocol.
|
||
It now supports multithread non-stop debugging and simultaneous
|
||
debugging of several threads.
|
||
|
||
** Image mode
|
||
|
||
*** RET (`image-toggle-animation') toggles animation, if applicable.
|
||
Animation plays once, unless the option `image-animate-loop' is non-nil.
|
||
|
||
** Info
|
||
|
||
*** New command M-x info-display-manual displays a named Info manual.
|
||
If that manual is already visited in some Info buffer, it displays
|
||
that buffer. (This is handy if you have many manuals in many *info*
|
||
buffers, and don't remember the name of the buffer visiting the manual
|
||
you want to consult.) Otherwise, it loads and displays the manual.
|
||
|
||
*** `e' is now bound to `end-of-buffer' rather than to `Info-edit'.
|
||
This is for compatibility with the stand-alone Info reader program,
|
||
and also because `Info-edit' is a rarely used command that is disabled
|
||
by default.
|
||
|
||
** Mail mode changes (not Message mode)
|
||
|
||
*** New command M-x mail-add-attachment for adding MIME attachments
|
||
|
||
*** The command M-x mail-attach-file was renamed to M-x mail-insert-file.
|
||
(Its name is misleading, since it has nothing to do with MIME
|
||
attachments.) The old name is now an obsolete alias to the new name.
|
||
|
||
** MH-E has been updated to MH-E version 8.3.1.
|
||
See MH-E-NEWS for details.
|
||
|
||
** Modula-2 mode provides auto-indentation.
|
||
|
||
** mpc.el: Can use pseudo tags of the form tag1|tag2 as a union of two tags.
|
||
|
||
** nXML mode no longer binds C-RET to `nxml-complete'.
|
||
Completion is now performed via `completion-at-point', bound to C-M-i
|
||
or M-TAB. If `nxml-bind-meta-tab-to-complete-flag' is non-nil (the
|
||
default), this performs tag completion.
|
||
|
||
** Org mode has been updated to version 7.8.09.
|
||
See ORG-NEWS for details.
|
||
|
||
** Prolog mode has been completely revamped, with lots of additional
|
||
functionality such as more intelligent indentation, electricity,
|
||
support for more variants, including Mercury, and a lot more.
|
||
|
||
** Rmail
|
||
|
||
*** The command `rmail-epa-decrypt' decrypts OpenPGP data
|
||
in the Rmail incoming message.
|
||
|
||
*** The variable `rmail-message-filter' no longer has any effect.
|
||
This change was made in Emacs 23.1 but was not advertised at the time.
|
||
Try using `rmail-show-message-hook' instead.
|
||
|
||
** Shell mode
|
||
|
||
*** M-x shell prompts for the shell path name if the default directory
|
||
is a remote file name and neither the environment variable $ESHELL nor
|
||
the variable `explicit-shell-file-name' is set.
|
||
|
||
*** TAB is now bound to the standard `completion-at-point' command,
|
||
which now implements the pcomplete rules for shell command completion.
|
||
|
||
** SMTPmail
|
||
|
||
*** SMTPmail now uses encrypted connections (via STARTTLS) by default
|
||
if the mail server supports them. This uses either built-in GnuTLS
|
||
support, or the starttls.el library. Customize `smtpmail-stream-type'
|
||
to change this.
|
||
|
||
*** The variable `smtpmail-auth-credentials' has been removed.
|
||
By default, the information is now stored in the file ~/.authinfo.
|
||
This was the default value of smtpmail-auth-credentials. If you had
|
||
customized smtpmail-auth-credentials to a list of user names and
|
||
passwords, those settings are not used. During your first connection
|
||
to the smtp server, Emacs will prompt for the user name and password,
|
||
and offer to save them to ~/.authinfo. Or you can manually copy the
|
||
credentials to ~/.authinfo. For example, if you had
|
||
|
||
(setq smtpmail-auth-credentials
|
||
'(("mail.example.org" 25 "jim" "s!cret")))
|
||
|
||
then the equivalent line in ~/.authinfo would be
|
||
|
||
machine mail.example.org port 25 login jim password s!cret
|
||
|
||
See the auth-source manual for more information, e.g. on encrypting
|
||
the credentials file.
|
||
|
||
*** The variable `smtpmail-starttls-credentials' has been removed.
|
||
If you had that set, you need to put
|
||
|
||
machine smtp.whatever.foo port 25 key "~/.my_smtp_tls.key" cert "~/.my_smtp_tls.cert"
|
||
|
||
in your ~/.authinfo file instead.
|
||
|
||
*** SMTPmail defaults to using the address in the From: header as the
|
||
SMTP MAIL FROM envelope. To override this, set `mail-envelope-from'
|
||
to the address you wish to use instead.
|
||
|
||
** SQL mode
|
||
|
||
*** New options `sql-port', `sql-connection-alist', `sql-send-terminator',
|
||
and `sql-oracle-scan-on'.
|
||
|
||
*** New options controlling prompting for login parameters.
|
||
Each supported product has a custom variable `sql-*-login-params',
|
||
which is a list of the parameters to be prompted for before a
|
||
connection is established.
|
||
|
||
*** The command `sql-product-interactive' now takes a prefix argument,
|
||
which causes it to prompt for an SQL product.
|
||
|
||
*** Product-specific SQL interactive commands now take prefix arguments.
|
||
These commands (`sql-sqlite', `sql-postgres', `sql-mysql', etc.),
|
||
given a prefix argument, prompt for a name for the SQL interactive
|
||
buffer. This reduces the need for calling `sql-rename-buffer'.
|
||
|
||
*** SQL interactive modes suppress command continuation prompts, and
|
||
replace tabs with spaces. The first change impacts multiple line SQL
|
||
statements entered with C-j between each line, statements yanked into
|
||
the buffer and statements sent with `sql-send-*' functions. The
|
||
second prevents the MySQL and Postgres interpreters from listing
|
||
object name completions when sent text via `sql-send-*' functions.
|
||
|
||
*** New command `sql-connect' starts a predefined SQLi session,
|
||
using the login parameters from `sql-connection-alist'.
|
||
|
||
*** New "Save Connection" menu item in SQLi buffers.
|
||
This gathers the login params specified for the SQLi session, if it
|
||
was not started by a connection, and saves them as a new connection.
|
||
|
||
*** New commands for listing database objects and details:
|
||
sql-list-all and sql-list-table.
|
||
|
||
*** An API for manipulating SQL product definitions has been added.
|
||
|
||
** TeX modes
|
||
|
||
*** latex-electric-env-pair-mode keeps \begin..\end matched on the fly.
|
||
|
||
** Tramp
|
||
|
||
*** New inline access method "ksu" (kerberized su).
|
||
|
||
*** The following access methods are discontinued: "ssh1_old",
|
||
"ssh2_old", "scp1_old", "scp2_old", "imap", "imaps" and "fish".
|
||
|
||
*** The user option `remote-file-name-inhibit-cache' controls whether
|
||
remote file attributes are cached for better performance.
|
||
|
||
*** The option `ange-ftp-binary-file-name-regexp' has changed its
|
||
default value to "".
|
||
|
||
*** Handlers for `file-selinux-context' and `set-file-selinux-context'
|
||
for remote machines which support SELinux.
|
||
|
||
** New function `url-queue-retrieve', which behaves like url-retrieve,
|
||
but with limits (`url-queue-parallel-processes', `url-queue-timeout') on
|
||
the degree of parallelism.
|
||
|
||
** VC and related modes
|
||
|
||
*** Support for pulling on distributed version control systems.
|
||
The command C-x v + (`vc-pull') runs a "pull" operation, if it is
|
||
supported (currently with Bzr, Git, and Mercurial), to update the
|
||
current branch and working tree. A prefix argument means to prompt
|
||
the user for specifics, e.g. a pull location.
|
||
|
||
*** `vc-update' is now an alias for `vc-pull'.
|
||
|
||
*** Support for merging on distributed version control systems.
|
||
The command C-x v m (`vc-merge') now runs a "merge" operation, if it
|
||
is supported (currently with Bzr, Git, and Mercurial), to merge
|
||
changes from another branch into the current one. It prompts for
|
||
specifics, e.g. a merge source.
|
||
|
||
*** New option `vc-revert-show-diff' controls whether `vc-revert'
|
||
shows a diff while querying the user. It defaults to t.
|
||
|
||
*** Log entries in some Log View buffers can be toggled to display a
|
||
longer description by typing RET (log-view-toggle-entry-display).
|
||
This is currently supported for Bzr, Git, and Mercurial (to support
|
||
another backend, define a `log-view-expanded-log-entry-function').
|
||
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.
|
||
|
||
*** New command `vc-ediff' allows visual comparison of two revisions
|
||
of a file similar to `vc-diff', but using ediff backend.
|
||
|
||
*** The option `vc-initial-comment' was removed in Emacs 23.2, but
|
||
this was not advertised at the time.
|
||
|
||
*** `vc-toggle-read-only' is an obsolete alias for `toggle-read-only'.
|
||
Since Emacs 23, it has done the same thing as `toggle-read-only', but
|
||
this was not advertised at the time.
|
||
|
||
** Obsolete modes
|
||
|
||
*** abbrevlist.el
|
||
|
||
*** erc-hecomplete.el (use erc-pcomplete.el instead)
|
||
|
||
*** partial-completion-mode (complete.el) is obsolete.
|
||
You can get a comparable behavior with:
|
||
(setq completion-styles '(partial-completion initials))
|
||
(setq completion-pcm-complete-word-inserts-delimiters t)
|
||
|
||
*** pc-mode.el is obsolete (CUA mode is much more comprehensive).
|
||
|
||
*** pgg is obsolete (use EasyPG instead).
|
||
|
||
*** sregex.el is obsolete, since rx.el is a strict superset.
|
||
|
||
*** s-region.el and pc-select.el are obsolete.
|
||
They are superseded by shift-select-mode, enabled by default since 23.1.
|
||
|
||
*** vc-mcvs.el is obsolete (for lack of a maintainer).
|
||
|
||
** Miscellaneous
|
||
|
||
*** The Landmark game is now invoked with `landmark', not `lm'.
|
||
Its functions and variables have been similarly renamed.
|
||
|
||
*** In `ido-file-completion-map', C-v is no longer bound to `ido-toggle-vc'.
|
||
(This interfered with cua-mode.)
|
||
|
||
*** f90.el has some support for Fortran 2008 syntax.
|
||
|
||
*** `copyright-fix-years' can optionally convert consecutive years to ranges.
|
||
|
||
*** New command `nato-region' converts text to NATO phonetic alphabet.
|
||
|
||
|
||
* New Modes and Packages in Emacs 24.1
|
||
|
||
** Occur Edit mode applies edits made in *Occur* buffers to the
|
||
original buffers. It is bound to "e" in Occur mode.
|
||
|
||
** New global minor mode electric-pair-mode.
|
||
When enabled, typing an open parenthesis automatically inserts the
|
||
matching closing one.
|
||
|
||
** New global minor mode electric-indent-mode.
|
||
When enabled, typing certain characters triggers reindentation.
|
||
Major modes wishing to use this can set electric-indent-chars or
|
||
electric-indent-functions.
|
||
|
||
** New global minor mode electric-layout-mode.
|
||
When enabled, typing certain characters automatically inserts newlines.
|
||
Major modes wishing to use this can set electric-layout-rules.
|
||
|
||
** tabulated-list.el provides a generic major mode for tabulated data,
|
||
from which other modes can be derived.
|
||
|
||
** pcase.el provides the ML-style pattern matching macro `pcase'.
|
||
|
||
** secrets.el is an implementation of the Secret Service API, an
|
||
interface to password managers like GNOME Keyring or KDE Wallet. The
|
||
Secret Service API requires D-Bus for communication. The command
|
||
`secrets-show-secrets' offers a buffer with a visualization of the
|
||
secrets.
|
||
|
||
** 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.
|
||
|
||
** New generic mode, xmodmap-generic-mode, for xmodmap files.
|
||
|
||
** New emacs-lock.el package.
|
||
The previous version has been moved to obsolete/old-emacs-lock.el.
|
||
Now, there is a proper minor mode `emacs-lock-mode'. Protection
|
||
against exiting Emacs and killing the buffer can be set separately.
|
||
The mechanism for automatically turning off protection for buffers
|
||
with dead inferior processes has been generalized.
|
||
|
||
|
||
* Incompatible Lisp Changes in Emacs 24.1
|
||
|
||
** Passing a nil argument to a minor mode function call now ENABLES
|
||
the minor mode unconditionally. This is so that you can write e.g.
|
||
|
||
(add-hook 'text-mode-hook 'foo-mode)
|
||
|
||
to enable foo-mode in Text mode buffers, removing the need for
|
||
`turn-on-foo-mode' style functions. This affects all mode commands
|
||
defined by `define-minor-mode'. If called interactively, the mode
|
||
command still toggles the minor mode.
|
||
|
||
** The return value of `backup-buffer' has changed.
|
||
It is now a list of three elements, where the second element is a list
|
||
describing the original file's SELinux context. If Emacs or the
|
||
system lacks SELinux support, the context list is (nil nil nil nil).
|
||
See "Basic SELinux support" above, under "Changes in Emacs 24.1".
|
||
|
||
** `char-direction-table' and the `char-direction' function were deleted.
|
||
They were buggy and inferior to the new support of bidirectional
|
||
editing introduced in Emacs 24. If you need the bidirectional
|
||
properties of a character, use `get-char-code-property' with the last
|
||
argument `bidi-class'.
|
||
|
||
** `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.
|
||
|
||
** 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.
|
||
|
||
** Support for "old-style" backquotes, obsolete for 10+ years, has
|
||
been further reduced. Now a backquote not followed by a space is
|
||
always treated as a "new-style" backquote. Please remove all
|
||
"old-style" backquotes from your code. If your code uses backquotes
|
||
as documented in the Elisp manual, and compiles without warning, then
|
||
you have nothing to do in this regard. Code not following the
|
||
appropriate conventions may fail to compile.
|
||
|
||
The most common cause of trouble seems to be an old-style backquote
|
||
followed by a newline. Another cause of trouble is vector notation
|
||
for key sequence notation: instead of [(control ,)] and [(control ')],
|
||
you should write [(control ?,)] and [(control ?')], which will work in
|
||
older Emacsen too.
|
||
|
||
** The macro `eval-at-startup' was removed in Emacs 23.2, but this
|
||
was not advertised at the time. The function `custom-initialize-delay'
|
||
replaced all known uses.
|
||
|
||
** `view-buffer' now treats special mode-class in the same way that
|
||
`view-file' has since Emacs 22 (i.e. it won't enable View mode if the
|
||
major mode is special).
|
||
|
||
** Menu and tool bar changes
|
||
|
||
*** During startup, Emacs no longer adds entries for `menu-bar-lines'
|
||
and `tool-bar-lines' to `default-frame-alist' and `initial-frame-alist'.
|
||
With these alist entries omitted, `make-frame' checks the value of the
|
||
variable `menu-bar-mode'/`tool-bar-mode' to determine whether to create
|
||
a menu-bar or tool-bar, respectively. If the alist entries are added,
|
||
they override the value of `menu-bar-mode'/`tool-bar-mode'.
|
||
|
||
*** The menu bar bindings's caches are not used any more.
|
||
Use (where-is-internal <def> nil t) instead.
|
||
|
||
** Regions created by mouse dragging are now normal active regions,
|
||
similar to those created by shift-selection (see Selection changes
|
||
above). In previous Emacs versions, these regions were delineated by
|
||
`mouse-drag-overlay'; that variable has been removed.
|
||
|
||
** The fourth argument of `filter-buffer-substring' has been removed.
|
||
If you want to remove text properties from the final result, simply
|
||
pass the result through substring-no-properties.
|
||
|
||
** cl.el no longer provides `cl-19'.
|
||
|
||
** The following obsolete functions and aliases have been removed
|
||
(the appropriate new function is given in parentheses; "not needed"
|
||
means you can just remove all calls to the function in question):
|
||
|
||
*** `comint-kill-output' (`comint-delete-output')
|
||
*** `decompose-composite-char' (`char-to-string')
|
||
*** `outline-visible' (`outline-invisible-p')
|
||
*** `internal-find-face' (`facep')
|
||
*** `internal-get-face' (`facep and check-face')
|
||
*** `frame-update-faces' (not needed)
|
||
*** `frame-update-face-colors' (`frame-set-background-mode')
|
||
*** `x-frob-font-weight' and `x-frob-font-slant' (`make-face-*' functions)
|
||
*** `x-make-font-bold' and `x-make-font-demibold' (`make-face-bold')
|
||
*** `x-make-font-italic' and `x-make-font-oblique' (`make-face-italic')
|
||
*** `x-make-font-bold-italic' (`make-face-bold-italic')
|
||
*** `x-make-font-unbold' (`make-face-unbold')
|
||
*** `x-make-font-unitalic' (`make-face-unitalic')
|
||
*** `mldrag-drag-mode-line' (`mouse-drag-mode-line')
|
||
*** `mldrag-drag-vertical-line' (`mouse-drag-vertical-line')
|
||
*** `iswitchb-default-keybindings' (`iswitchb-mode')
|
||
*** `char-bytes' (== 1)
|
||
*** `isearch-return-char' (`isearch-printing-char')
|
||
*** `make-local-hook' (not needed)
|
||
*** `set-screen-height' (`set-frame-height')
|
||
*** `set-screen-width' (`set-frame-width')
|
||
|
||
** The following obsolete variables and varaliases have been removed
|
||
(the appropriate new variable is given in parentheses):
|
||
|
||
*** `checkdoc-minor-keymap' (`checkdoc-minor-mode-map')
|
||
*** `vc-header-alist' (`vc-BACKEND-header')
|
||
*** `directory-sep-char' (== ?/)
|
||
*** `font-lock-defaults-alist' (`font-lock-defaults')
|
||
*** `e' (`float-e').
|
||
|
||
** The following obsolete files were removed:
|
||
sc.el, x-menu.el, rnews.el, rnewspost.el
|
||
|
||
** The format of the finder-inf.el file has changed, since the Finder
|
||
mechanism is now based on the package system. The variable
|
||
`finder-package-info' is replaced by `package--builtins' and
|
||
`finder-keywords-hash'.
|
||
|
||
** When generating autoloads, `update-directory-autoloads' no longer
|
||
assumes every inspected file is in your `load-path'. It instead
|
||
generates relative names according to the current `load-path'.
|
||
|
||
|
||
* Lisp Changes in Emacs 24.1
|
||
|
||
** Code can now use lexical scoping by default instead of dynamic scoping.
|
||
The `lexical-binding' variable enables lexical scoping for local
|
||
variables. It is typically set via a file-local variable in the first
|
||
line of the file, in which case it applies to all the code in that
|
||
file.
|
||
|
||
*** `eval' takes a new optional argument `lexical' to choose the new lexical
|
||
binding instead of the old dynamic binding mode.
|
||
|
||
*** Lexically scoped interpreted functions are represented with a new form
|
||
of function value which looks like (closure ENV ARGS &rest BODY).
|
||
|
||
*** New macro `letrec' to define recursive local functions.
|
||
|
||
*** `defvar' and `defconst' now mark the variable as special (dynamic).
|
||
So do `defcustom' and other forms that call `defvar' as a subroutine.
|
||
|
||
*** New function `special-variable-p' to check whether a variable is
|
||
declared as dynamically bound.
|
||
|
||
*** The form ((lambda ...) ...) is deprecated.
|
||
|
||
** 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.
|
||
|
||
** Changes for bidirectional display and editing
|
||
|
||
*** New function `current-bidi-paragraph-direction'.
|
||
This returns the base direction of the paragraph at point.
|
||
|
||
*** New function `bidi-string-mark-left-to-right'.
|
||
Given a string containing characters from right-to-left scripts, this
|
||
function returns another string which can be safely inserted into a
|
||
buffer, such that any following text will be always displayed to the
|
||
right of that string. (This works by appending an invisible Unicode
|
||
"LEFT-TO-RIGHT MARK" character if the argument string might need it.)
|
||
|
||
This is useful when the buffer has overall left-to-right paragraph
|
||
direction and you need to insert a string whose contents are not known
|
||
in advance, without disrupting the layout of the line.
|
||
|
||
** Window changes
|
||
|
||
*** Window tree functions are accessible in Elisp.
|
||
Functions are provided to return the parent, siblings or child windows
|
||
of any window including internal windows (windows not associated with a
|
||
buffer) in the window tree.
|
||
|
||
**** New function `window-valid-p' gives non-nil for live and internal
|
||
windows.
|
||
|
||
**** Window manipulation can deal with internal windows.
|
||
Many window handling functions like `split-window', `delete-window', or
|
||
`delete-other-windows' as well as the window resizing functions can now
|
||
act on any window including internal ones.
|
||
|
||
*** window-total-height/-width vs window-body-height/-width.
|
||
The function `window-height' has been renamed to `window-total-height'
|
||
and `window-width' has been renamed to `window-body-width'. The old
|
||
names are provided as aliases. Two new functions `window-total-width'
|
||
and `window-body-height' are provided.
|
||
|
||
*** Window parameters specific to window handling functions.
|
||
For each window you can specify a parameter to override the default
|
||
behavior of a number of functions like `split-window', `delete-window'
|
||
and `delete-other-windows'. The variable `ignore-window-parameters'
|
||
allows to ignore processing such parameters.
|
||
|
||
*** New semantics of third argument of `split-window'.
|
||
The third argument of `split-window' has been renamed to SIDE and can be
|
||
set to any of the values 'below, 'right, 'above, or 'left to make the
|
||
new window appear on the corresponding side of the window that shall be
|
||
split. Any other value of SIDE will cause `split-window' to split the
|
||
window into two side-by-side windows as before.
|
||
|
||
*** Window resizing functions.
|
||
A new standard function for resizing windows called `window-resize' has
|
||
been introduced. This and all other functions for resizing windows no
|
||
longer delete any windows when they become too small.
|
||
|
||
*** Deleting the selected window now selects the most recently selected
|
||
live window on that frame instead.
|
||
|
||
*** `adjust-window-trailing-edge' adjustments.
|
||
`adjust-window-trailing-edge' can now deal with fixed-size windows and
|
||
is able to resize other windows if a window adjacent to the trailing
|
||
edge cannot be shrunk any more. This makes its behavior more similar to
|
||
that of Emacs 21 without compromising, however, its inability to delete
|
||
windows which was introduced in Emacs 22.
|
||
|
||
*** Window-local buffer lists.
|
||
Windows now have local buffer lists. This means that removing a buffer
|
||
from display in a window will preferably show the buffer previously
|
||
shown in that window with its previous window-start and window-point
|
||
positions. This also means that the same buffer may be automatically
|
||
shown twice even if it already appears in another window.
|
||
|
||
*** `switch-to-buffer' has a new optional argument FORCE-SAME-WINDOW,
|
||
which if non-nil requires the buffer to be displayed in the currently
|
||
selected window, signaling an error otherwise. If nil, another window
|
||
can be used, e.g. if the selected one is strongly dedicated.
|
||
|
||
*** `split-window-vertically' and `split-window-horizontally' renamed
|
||
to `split-window-below' and `split-window-right' respectively.
|
||
The old names are kept as aliases.
|
||
|
||
*** Display actions
|
||
|
||
**** The second arg to `display-buffer' and `pop-to-buffer' is now
|
||
named ACTION, and takes a display action of the same form as
|
||
`display-buffer-base-action' (see Changes, above). A non-nil,
|
||
non-list value is treated specially, as the old meaning.
|
||
|
||
**** New variable `display-buffer-overriding-action'.
|
||
|
||
**** The procedure of `display-buffer' etc. to choose a window is
|
||
determined by combining `display-buffer-overriding-action',
|
||
`display-buffer-alist', the ACTION arg, `display-buffer-base-action',
|
||
and `display-buffer-fallback-action'. The second and fourth of these
|
||
are user-customizable variables.
|
||
|
||
See the docstring of `display-buffer' for details.
|
||
|
||
*** New functions `window-state-get' and `window-state-put'.
|
||
These functions allow to save and restore the state of an arbitrary
|
||
frame or window as an Elisp object.
|
||
|
||
** Completion
|
||
|
||
*** New variable `completion-extra-properties' used to specify extra
|
||
properties of the current completion:
|
||
- :annotation-function, same as the old completion-annotate-function.
|
||
- :exit-function, function to call after completion took place.
|
||
|
||
*** Functions on `completion-at-point-functions' can return any of the
|
||
properties valid for `completion-extra-properties'.
|
||
|
||
*** `completion-annotate-function' is obsolete.
|
||
|
||
*** New `metadata' method for completion tables. The metadata thus returned
|
||
can specify various details of the data returned by `all-completions':
|
||
- `category' is the kind of objects returned (e.g., `buffer', `file', ...),
|
||
used to select a style in completion-category-overrides.
|
||
- `annotation-function' to add annotations in *Completions*.
|
||
- `display-sort-function' to specify how to sort entries in *Completions*.
|
||
- `cycle-sort-function' to specify how to sort entries when cycling.
|
||
|
||
*** `minibuffer-local-filename-must-match-map' is not used any more.
|
||
Instead, the bindings in `minibuffer-local-filename-completion-map'
|
||
are combined with `minibuffer-local-must-match-map'.
|
||
|
||
*** New variable `completing-read-function' allows overriding the
|
||
behavior of `completing-read'.
|
||
|
||
** `glyphless-char-display' can now distinguish between graphical and
|
||
text terminal display, via a char-table entry that is a cons cell.
|
||
|
||
** `pre-command-hook'/`post-command-hook' are not reset to nil on error.
|
||
Instead, the offending function is removed.
|
||
|
||
** New hook types
|
||
|
||
*** New function `run-hook-wrapped' for running an abnormal hook by
|
||
passing the hook functions as arguments to a "wrapping" function.
|
||
Like `run-hook-with-args-until-success', it stops at the first
|
||
non-nil return value.
|
||
|
||
*** New macro `with-wrapper-hook' for running an abnormal hook as a
|
||
set of "wrapping" filters, similar to around advice.
|
||
(A version of this macro was actually added in Emacs 23.2 but was not
|
||
advertised at the time.)
|
||
|
||
** Debugger changes
|
||
|
||
*** New macro `condition-case-unless-debug'.
|
||
(This was actually added in Emacs 23.1 as condition-case-no-debug, but
|
||
not advertised)
|
||
|
||
*** The macro `with-demoted-errors'.
|
||
It was also added in Emacs 23.1, but not advertised.
|
||
|
||
*** Variable `stack-trace-on-error' removed.
|
||
|
||
*** 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.
|
||
|
||
*** Set `debug-on-event' to enter the debugger on events like SIGUSR1.
|
||
This can be useful when `inhibit-quit' is set.
|
||
|
||
** The new function `server-eval-at' allows evaluation of Lisp forms on
|
||
named Emacs server instances.
|
||
|
||
** `call-process' and `call-process-region' allow a `(:file "file")' spec
|
||
to redirect STDOUT to a file.
|
||
|
||
** The function `format-time-string' now supports the %N directive,
|
||
for higher-resolution time stamps.
|
||
|
||
** New input reading functions
|
||
|
||
*** New function `read-char-choice' reads a restricted set of
|
||
characters, discarding any inputs not inside the set.
|
||
|
||
*** The command `read-color' now requires a match for a color name
|
||
or RGB triplet, instead of signaling an error if the user provides
|
||
invalid input.
|
||
|
||
**** `facemenu-read-color' is now an alias for `read-color'.
|
||
|
||
** `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
|
||
obsolete alias.
|
||
|
||
** Syntax parsing changes
|
||
|
||
*** New variable `syntax-propertize-function'.
|
||
This replaces `font-lock-syntactic-keywords' which is now obsolete.
|
||
This allows syntax-table properties to be set independently from font-lock:
|
||
just call syntax-propertize to make sure the text is propertized.
|
||
Together with this new variable come a new hook
|
||
syntax-propertize-extend-region-functions, as well as two helper functions:
|
||
syntax-propertize-via-font-lock to reuse old font-lock-syntactic-keywords
|
||
as-is; and syntax-propertize-rules which provides a new way to specify
|
||
syntactic rules.
|
||
|
||
*** Syntax tables support a new "comment style c" additionally to style b.
|
||
|
||
** New hook `post-self-insert-hook', run after `self-insert-command'.
|
||
|
||
** frame-local variables cannot be let-bound any more.
|
||
|
||
** Major and minor mode changes
|
||
|
||
*** `set-auto-mode' now respects mode: local variables at the end of files,
|
||
as well as those in the -*- line.
|
||
|
||
*** `prog-mode' is a new major mode from which programming modes
|
||
should be derived.
|
||
|
||
**** `prog-mode-hook' can be used to enable features for programming
|
||
modes, e.g. (add-hook 'prog-mode-hook 'flyspell-prog-mode) to enable
|
||
on-the-fly spell checking for comments and strings.
|
||
|
||
*** New hook `change-major-mode-after-body-hook', run by
|
||
`run-mode-hooks' just before any other mode hooks.
|
||
|
||
*** Enabled globalized minor modes can be disabled in specific major modes.
|
||
If the global mode is global-FOO-mode, then run (FOO-mode -1) in the
|
||
major mode's hook, where FOO-mode toggles the mode on a per-buffer basis.
|
||
|
||
*** `define-minor-mode' accepts new keywords :variable, :after-hook.
|
||
|
||
** File-handling changes
|
||
|
||
*** `delete-file' and `delete-directory' now accept optional arg TRASH.
|
||
Trashing is performed if TRASH and `delete-by-moving-to-trash' are
|
||
both non-nil. Interactively, TRASH defaults to t, unless a prefix
|
||
argument is supplied (see Trash changes, above).
|
||
|
||
*** New file predicates: `file-equal-p', `file-in-directory-p'.
|
||
|
||
*** New function `file-size-human-readable'.
|
||
|
||
** 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
|
||
|
||
*** Animated images support (currently animated gifs only).
|
||
|
||
**** `image-animated-p' returns non-nil if an image can be animated.
|
||
|
||
**** `image-animate' animates a supplied image spec.
|
||
|
||
**** `image-animate-timer' returns the timer object for an image that
|
||
is being animated.
|
||
|
||
*** `image-extension-data' has been renamed to `image-metadata'.
|
||
The old name is an obsolete alias to the new one.
|
||
|
||
*** Image mode can view any image type that ImageMagick supports.
|
||
This requires Emacs to be built with ImageMagick support.
|
||
|
||
**** New function `imagemagick-types', defined if ImageMagick support
|
||
is enabled, returns a list of image file extensions that your
|
||
ImageMagick installation supports.
|
||
|
||
**** New function `imagemagick-register-types' enables ImageMagick
|
||
image types in Image mode and in `create-image' and other helper
|
||
functions.
|
||
|
||
**** New option `imagemagick-types-inhibit' excludes certain
|
||
ImageMagick image types from `imagemagick-register-types'.
|
||
|
||
**** With ImageMagick support, there are extra Image mode commands to
|
||
resize and rotate images: `image-transform-fit-to-height',
|
||
`image-transform-fit-to-width', `image-transform-set-rotation', and
|
||
`image-transform-set-scale'.
|
||
|
||
** `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. For
|
||
example, this is used by Rmail to optionally delete a mail window.
|
||
|
||
** XML and HTML parsing
|
||
If Emacs is compiled with libxml2 support, there are two new
|
||
functions: `libxml-parse-html-region' (which parses "real world" HTML)
|
||
and `libxml-parse-xml-region' (which parses XML). Both return an
|
||
Emacs Lisp parse tree.
|
||
|
||
** Networking and encryption changes
|
||
|
||
*** `open-network-stream' can now be used to open an encrypted stream.
|
||
It now accepts an optional `:type' parameter for initiating a TLS
|
||
connection, directly or via STARTTLS. To do STARTTLS, additional
|
||
parameters (`:end-of-command', `:success', `:capabilities-command')
|
||
must also be supplied.
|
||
|
||
*** New library gnutls.el.
|
||
The new function `gnutls-available-p' returns non-nil if Emacs is
|
||
built with GnuTLS support. The main entry points are
|
||
`open-gnutls-stream' and `gnutls-negotiate'. It's easiest to use
|
||
these functions through `open-network-stream', because that can
|
||
upgrade connections through STARTTLS opportunistically or use plain
|
||
SSL, depending on your needs. For debugging, set `gnutls-log-level'
|
||
greater than 0.
|
||
|
||
*** New primitive `secure-hash' that supports many secure hash algorithms:
|
||
md5, sha1, sha2, sha224, sha256, sha384, and sha512. The lisp library
|
||
sha1.el has been removed. The `sha1' feature is provided by default.
|
||
|
||
** Isearch
|
||
|
||
*** New hook `isearch-update-post-hook' that runs in `isearch-update'.
|
||
|
||
** Progress reporters can now "spin".
|
||
The MIN-VALUE and MAX-VALUE arguments of `make-progress-reporter' can
|
||
now be nil, or omitted. This makes a "non-numeric" reporter. Each
|
||
time you call `progress-reporter-update' on that progress reporter,
|
||
with a nil or omitted VALUE argument, the reporter message is
|
||
displayed with a "spinning bar".
|
||
|
||
** New variable `revert-buffer-in-progress-p' is true while a buffer is
|
||
being reverted, even if the buffer has a local `revert-buffer-function'.
|
||
|
||
** New variables `delayed-warnings-list' and `delayed-warnings-hook'.
|
||
If delayed-warnings-list is non-nil, the command loop calls
|
||
`delayed-warnings-hook' after `post-command-hook'. At present, this
|
||
is only used by Emacs on some platforms to display warnings during
|
||
startup, which might otherwise not be noticed. This uses the
|
||
functions `display-delayed-warnings' and `collapse-delayed-warnings'.
|
||
|
||
** rx.el has a new `group-n' construct for explicitly numbered groups.
|
||
|
||
** New function `make-composed-keymap' that constructs a new keymap
|
||
from multiple input maps. You can use this to make a keymap that
|
||
inherits from multiple maps, eg:
|
||
(set-keymap-parent newmap (make-composed-keymap othermap parent))
|
||
|
||
** New function `string-prefix-p'.
|
||
(This was actually added in Emacs 23.2 but was not advertised at the time.)
|
||
|
||
** New reader macro ## that stands for the empty symbol.
|
||
This means that the empty symbol can now be read back. Also, #: by itself
|
||
(when not immediately followed by a possible symbol character) stands for
|
||
an empty uninterned symbol.
|
||
|
||
** New math functions `isnan', `copysign', `frexp', `ldexp'.
|
||
|
||
** The following functions and variables are obsolete:
|
||
|
||
*** `tooltip-use-echo-area' is obsolete.
|
||
Rather than setting this to t, disable Tooltip mode instead.
|
||
|
||
*** buffer-substring-filters is obsolete.
|
||
Use `filter-buffer-substring-functions' instead.
|
||
|
||
*** `byte-compile-disable-print-circle' is obsolete.
|
||
|
||
*** `deferred-action-list' and `deferred-action-function' are obsolete.
|
||
Use `post-command-hook' instead.
|
||
|
||
*** `font-lock-maximum-size' is obsolete.
|
||
|
||
|
||
* Changes in Emacs 24.1 on Non-Free Operating Systems
|
||
|
||
** On MS Windows, Emacs warns when using the obsolete init file _emacs,
|
||
and also when HOME is set to C:\ by default.
|
||
|
||
** New configure.bat options
|
||
|
||
*** --enable-checking builds Emacs with extra runtime checks.
|
||
|
||
*** --distfiles specifies files to be included in binary distribution.
|
||
|
||
*** --without-gnutls disables automatic GnuTLS detection.
|
||
|
||
*** --lib for general library linkage, works with the USER_LIBS build variable.
|
||
|
||
** New make target `dist' to create binary distribution for MS Windows.
|
||
|
||
** The Lisp function `w32-default-color-map' is now obsolete.
|
||
(It is only used internally in the Emacs C code.)
|
||
|
||
** Customize ns-auto-hide-menu-bar to have the menu-bar hidden, but
|
||
reappear on mouse-over. (Requires Mac OS X 10.6 or later.)
|
||
|
||
** On Mac OS X, dragging a file into Emacs visits the file, like on
|
||
other platforms, rather than inserting its contents into the buffer.
|
||
|
||
|
||
----------------------------------------------------------------------
|
||
This file is part of GNU Emacs.
|
||
|
||
GNU Emacs is free software: you can redistribute it and/or modify
|
||
it under the terms of the GNU General Public License as published by
|
||
the Free Software Foundation, either version 3 of the License, or
|
||
(at your option) any later version.
|
||
|
||
GNU Emacs is distributed in the hope that it will be useful,
|
||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
GNU General Public License for more details.
|
||
|
||
You should have received a copy of the GNU General Public License
|
||
along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
|
||
|
||
|
||
Local variables:
|
||
coding: utf-8
|
||
mode: outline
|
||
paragraph-separate: "[ ]*$"
|
||
end:
|