---
** There is a 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 translation of the Emacs Tutorial in Hebrew is available.
*** shell-mode uses pcomplete rules, with the standard completion UI.
-*** Many packages have been changed to use completion-at-point rather than
-their own completion code.
+*** Many packages have been changed to use `completion-at-point'
+rather than their own completion code.
+*** `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.
-
++++
*** Completion can cycle, depending on completion-cycle-threshold.
-
++++
*** New completion style `substring'.
-
++++
*** Completion style can be set per-category `completion-category-overrides'.
-
++++
*** Completion of buffers now uses substring completion by default.
-*** `completing-read' can be customized using the new variable
-`completing-read-function'.
-
-*** 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.
-
** Mail changes
The default of `send-mail-function' is now `sendmail-query-once',
as Arabic, Farsi, or Hebrew, is displayed in the correct visual order
as expected by users of those scripts. This display reordering is a
"Full bidirectionality" class implementation of the Unicode
-Bidirectional Algorithm. Buffers RTL text should look exactly the
-same as before.
+Bidirectional Algorithm. Buffers with no RTL text should look exactly
+the same as before.
For more information, see the node "Bidirectional Editing" in the
Emacs Manual.
---
*** New input methods for Farsi: farsi and farsi-translit.
++++
+*** `nobreak-char-display' now also highlights Unicode hyphen chars
+(U+2010 and U+2011).
+
** Improved GTK integration
*** GTK scroll-bars are now placed on the right by default.
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 colors for selected text (the region face) are taken from the GTK
-theme when Emacs is built with GTK.
-
++++
+*** The 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 turn that
off by customizing x-gtk-use-system-tooltips.
with Xft. To change font, use the X resource font, for example:
Emacs.pane.menubar.font: Courier-12
++++
** 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.
*** The new functions file-selinux-context and set-file-selinux-context
get and set the SELinux context of a file.
-
+---
*** Tramp offers handlers for file-selinux-context and set-file-selinux-context
for remote machines which support SELinux.
consider if it is still appropriate to add it in the noninteractive case.
** 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 move to top/bottom of buffer)
-when a new variable `scroll-error-top-bottom' is non-nil.
+when `scroll-error-top-bottom' is non-nil.
+
++++
+*** New variable `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'.
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'.
These functions allow to navigate through the live buffers that have
been shown in a specific window.
++++
+*** 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.
+
** The inactive minibuffer has its own major mode `minibuffer-inactive-mode'.
This is handy for minibuffer-only frames, and is also used for the "mouse-1
pops up *Messages*" feature, which can now easily be changed.
+++
*** 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 command `count-words-region'. This does what you expect.
+** New commands `count-words-region' and `count-words'.
-** completion-at-point now handles tags and semantic completion.
+*** `count-lines-region' is now an alias for `count-words-region',
+bound to M-=, which shows the number of lines, words, and characters.
++++
** The default value of `backup-by-copying-when-mismatch' is now t.
-** The command `just-one-space' (C-SPC), if given a negative argument,
++++
+** 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', these 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; you
*** X clipboard managers are now supported.
To inhibit this, change `x-select-enable-clipboard-manager' to nil.
++++
** New command `rectangle-number-lines', bound to `C-x r N', numbers
the lines in the current rectangle. With a prefix argument, this
prompts for a number to count from and for a format string.
-** The command shell prompts for the shell path name, when the default
-directory is a remote file name and neither environment variable
-$ESHELL nor variable `explicit-shell-file-name' is set.
-
+++
** The default value of redisplay-dont-change is now t
This makes Emacs feel more responsive to editing commands that arrive
\f
* Changes in Specialized Modes and Packages in Emacs 24.1
++++
** Archive Mode has basic support for browsing and updating 7z archives.
** browse-url has a new variable `browse-url-mailto-function'
*** The command `rmail-epa-decrypt' decrypts OpenPGP data
in the Rmail incoming message.
-** shell-mode can track your cwd by reading it from your prompt.
-Just set shell-dir-cookie-re to an appropriate regexp.
+** Shell mode
+
+*** Shell mode uses pcomplete rules, with the standard completion UI.
+
+*** The `shell' command prompts for the shell path name if the default
+directory is a remote file name and neither the environment variable
+$ESHELL nor the variable `explicit-shell-file-name' is set.
+
+*** New variable `shell-dir-cookie-re'.
+If set to an appropriate regexp, Shell mode can track your cwd by
+reading it from your prompt.
---
** SQL Mode enhancements.
*** latex-electric-env-pair-mode keeps \begin..\end matched on the fly.
** Tramp
-
+---
*** There exists a new inline access method "ksu" (kerberized su).
-
+---
*** The following access methods are discontinued: "ssh1_old",
"ssh2_old", "scp1_old", "scp2_old", "imap", "imaps" and "fish".
-
+---
*** The option `ange-ftp-binary-file-name-regexp' has changed its
default value to "".
*** 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.
+
** FIXME: xdg-open for browse-url and reportbug, 2010/08.
** Obsolete modes
\f
* 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.
a menu-bar or tool-bar, respectively. If the alist entries are added,
they override the value of `menu-bar-mode'/`tool-bar-mode'.
++++
** Regions created by mouse dragging are now normal active regions,
similar to the ones created by shift-selection. In previous Emacs
versions, these regions were delineated by `mouse-drag-overlay', which
*** 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'.
+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.
-+++
-*** `split-window-above-each-other' and `split-window-side-by-side'.
-The commands `split-window-vertically' and `split-window-horizontally'
-have been renamed to `split-window-above-each-other' and
-`split-window-side-by-side' respectively. The old names are provided as
-aliases.
-
+++
*** Window resizing functions.
-A new standard function for resizing windows called `resize-window' has
+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
See the docstring of `display-buffer' for details.
++++
+*** New behavior of `quit-window'.
+The behavior of `quit-window' has been changed in order to restore the
+state before the last buffer display operation in that window.
+
++++
+*** The new option `frame-auto-hide-function' lets you choose between
+iconfying or deleting a frame when burying a buffer shown in a dedicated
+frame or quitting a window showing a buffer in a frame of its own.
+
** Completion
*** New variable completion-extra-properties used to specify extra properties
- `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.
*** `byte-compile-disable-print-circle' is obsolete.
*** `deferred-action-list' and `deferred-action-function' are obsolete.
++++
+*** `font-lock-maximum-size' is obsolete.
\f
* Changes in Emacs 24.1 on non-free operating systems
HCoop / bpt / emacs.git / blobdiff