\f
* Installation Changes in Emacs 24.4
+---
** Emacs can now be compiled with ACL support.
This happens by default if a suitable support library is found at
build time, like libacl on GNU/Linux. To prevent this, use the
-configure option `--disable-acl'.
-FIXME? Should be --without-acl?
+configure option `--disable-acl'. See below for related features.
+---
** Emacs can now be compiled with file notification support.
This happens by default if a suitable system library is found at
build time. To prevent this, use the configure option
`--without-file-notification'. See below for file-notify features.
-FIXME? This feature is not available for the Nextstep port. (?)
+This feature is not available for the Nextstep port.
+
+---
+** Emacs can now be compiled with zlib support.
+This happens by default if zlib is present, which it normally is.
+To prevent this, use the configure option `--without-zlib'.
+This provides the function `zlib-decompress-region'; see below for details.
---
** The configure option `--without-compress-info' has been generalized,
** Directories passed to configure option `--enable-locallisppath' are
no longer created during installation.
-** Emacs can be compiled with zlib support.
-If this library is present (which it normally is on most systems), the
-function `zlib-decompress-region' becomes available, which can
-decompress gzip- and zlib-format compressed data.
-
---
** Emacs for NS (Mac OS X, GNUstep) can be built with ImageMagick support.
-This requires pkg-config to be available at configure time.
+This requires pkg-config to be available at build time.
\f
* Startup Changes in Emacs 24.4
\f
* Changes in Emacs 24.4
++++
+** New function `zlib-decompress-region', which decompresses gzip- and
+zlib-format compressed data using built-in zlib support, if available.
+
+++
** New option `gnutls-verify-error', if non-nil, means that Emacs
should reject SSL/TLS certificates that GnuTLS determines as invalid.
the *Messages* buffer should call the function `messages-buffer' to do
so and set up the mode.
-** Emacs now supports ACLs (access control lists).
++++
+** Emacs can now support ACLs (access control lists).
+This requires a suitable support library to be found at build time.
+On GNU/Linux, the POSIX ACL interface is used via libacl.
+On MS-Windows, the NT Security APIs are used to emulate the POSIX interface.
+
+++
*** Emacs preserves the ACL entries of files when backing up.
+++
*** New functions `file-acl' and `set-file-acl' get and set the ACL
-entries of a file. On GNU/Linux, the POSIX ACL interface is used via
-libacl. On MS-Windows, the NT Security APIs are used to emulate the
-POSIX ACL interfaces.
+entries of a file.
** Multi-monitor support has been added.
++++
*** New functions `display-monitor-attributes-list' and
`frame-monitor-attributes' can be used to obtain information about
each physical monitor on multi-monitor setups.
++++
*** The functions `display-pixel-width' and `display-pixel-height' now
behave consistently among the platforms: they return the pixel width
or height for all physical monitors associated with the given display
-as if they were on X11. To get information for each physical
+as if they were on X. To get information for each physical
monitor, use the new functions above. Similar notes also apply to
`x-display-pixel-width', `x-display-pixel-height', `display-mm-width',
`display-mm-height', `x-display-mm-width', and `x-display-mm-height'.
** Frame and window changes
++++
+*** The function `window-in-direction' introduced in Emacs 24.1 now
+takes additional arguments for specifying a reference point, wrapping
+selection around frame borders, and specifying ways to select the
+minibuffer window.
+
+++
*** New commands `toggle-frame-fullscreen' and `toggle-frame-maximized',
bound to <f11> and M-<f10>, respectively.
window sizes now have an additional argument that allows changes to apply,
or values to be returned, in pixels instead of lines/columns.
++++
+*** The functions `window-body-height' and `window-body-width' now never
+count partially visible lines or columns if called with a nil PIXELWISE
+argument.
+
*** Emacs can now draw dividers between adjacent windows. To put
dividers between side-by-side/vertically stacked windows customize the
frame parameters `right-divider-width' and `bottom-divider-width' to
`fit-frame-to-buffer' and `fit-window-to-buffer' to accurately fit a
window to its buffer as it will be displayed.
-*** `fit-window-to-buffer' can now resize windows horizontally.
+*** `fit-window-to-buffer' can now resize windows in both dimensions.
This behavior is controlled by the new option
-`fit-window-to-buffer-horizontally'.
+`fit-window-to-buffer-horizontally'. The new option
+`fit-frame-to-buffer' allows to fit the window's frame to its buffer.
-*** `fit-frame-to-buffer' can now fit frames in both directions.
-This behavior is controlled by the option `fit-frame-to-buffer' which
-tells in which direction(s) the frame shall be fit. The new options
-`fit-frame-to-buffer-margins' and `fit-frame-to-buffer-sizes' allow to
+*** `fit-frame-to-buffer' now fits frames in both dimensions. The new
+options `fit-frame-to-buffer-margins' and `fit-frame-to-buffer-sizes'
control the size of the frame and its position on screen.
*** Temp Buffer Resize Mode can now adjust height and width of windows
and as such superfluous. After being reimplemented in Lisp, its
interactive form was mistakenly retained.
++++
*** The functions `window-size' and `window-total-size' now have an
optional argument to return a rounded size value.
++++
*** `window-state-put' now allows to put a window state into internal
windows too.
using the scroll bar (i.e. dragging the thumb down even when the end
of the buffer is visible).
++++
*** New basic action function `display-buffer-in-previous-window' has
`display-buffer' display a buffer in a window previously showing that
buffer.
++++
*** New basic action function `display-buffer-at-bottom' has
`display-buffer' choose or make a window at the bottom of the selected
frame.
+*** New display action function `display-buffer-no-window' to not
+display the buffer in a window.
+
+*** New display action alist entry `allow-no-window' to indicate the
+caller of `display-buffer' is ready to handle the case of not
+displaying the buffer in a window.
+
** Lisp evaluation changes
+++
*** `eval-defun' on an already defined defcustom calls the :set function,
** Indentation changes
+*** `electric-indent-mode' is now enabled by default.
+E.g., typing RET reindents the current line and indents the new line.
+`C-j' inserts a newline but does not indent.
+
+++
*** The behavior of `C-x TAB' (`indent-rigidly') has changed.
When invoked without a prefix argument, it now activates a transient
the text indentation in the region. Typing any other key resumes
normal editing behavior.
-*** `electric-indent-mode' is enabled by default.
-
+++
*** `tab-stop-list' is now implicitly extended to infinity by repeating
the last step. Its default value is changed to nil, which means a tab
+++
** Uniquify is enabled by default, with `post-forward-angle-brackets' style.
++++
** New command `C-x SPC' (`rectangle-mark-mode') makes a rectangular region.
Most commands are still unaware of it, but kill/yank do work on the rectangle.
*** 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).
after `desktop-auto-save-timeout'. To disable this, customize that option
to nil (or zero).
++++
*** `desktop-restore-frames', enabled by default, allows saving and
restoring the frame/window configuration (frameset). Additional options
`desktop-restore-in-current-display', `desktop-restore-reuses-frames'
+++
** Octave mode
-*** Font locking for texinfo comments and new keywords.
+*** Font locking for Texinfo comments and new keywords.
*** Completion in Octave file buffers.
to filter the list of packages by a keyword.
+++
-*** In the `describe-package' buffer, there are now buttons listing the
+*** 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.
*** `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'.
---
*** `sh-mode' now has its own setting for `add-log-current-defun-function'.
-** SMIE indentation can be customized via `smie-config'.
-Emacs can learn the appropriate indentation settings if you provide it
-with an indented sample file.
+** 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
+++
** New functions `special-form-p' and `macrop'.
++++
** 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.
** Completion changes
-*** The separator for `completing-read-multiple' can now be a regexp.
-The default separator has been changed to allow surrounding spaces
+---
+*** 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.
-*** The `common-substring' arg of `display-completion-list' is obsolete.
-Either use `completion-all-completions', which returns highlighted
-strings (including for partial or substring completion), or call
-`completion-hilit-commonality' to add the highlight.
++++
+*** 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.
++++
*** 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.
++++
** New minor modes `prettify-symbols-mode' and `global-prettify-symbols-mode'
-let you enable symbol prettification (replacing a string like "lambda" with
-the Greek lambda character).
+display specified symbols as composed characters. E.g., in Emacs Lisp mode,
+this replaces the string "lambda" with the Greek lambda character.
** Terminal changes
*** The hook `term-setup-hook' is obsolete. It is entirely equivalent
to `emacs-startup-hook'. See also the new `tty-setup-hook'.
-** Window Handling
-
-*** New display action function `display-buffer-no-window' to not
-display the buffer in a window.
-
-*** New display action alist entry `allow-no-window' to indicate the
-caller of `display-buffer' is ready to handle the case of not
-displaying the buffer in a window.
-
++++
** New hook `pre-redisplay-function'.
+++
*** `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'.
** Face changes
++++
*** 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 function `add-face-text-property', which can be used to
conveniently prepend/append new face properties.
+---
*** Face specs set via Custom themes now replace the `defface' spec
-rather than inheriting from it (as do face specs set via Customize).
+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.
+---
*** New face characteristic (supports :underline (:style wave))
specifies whether or not the terminal can display a wavy line.
HCoop / bpt / emacs.git / blobdiff