** New font code.
Fonts are handled by new code capable of dealing with multiple font
backends. This uses the freetype and fontconfig libraries.
-
++++
*** Emacs now accepts font names supplied in the fontconfig format
(e.g. "monospace-12:bold") and GTK format (e.g. "Monospace Bold 12").
starts the server. Clients can connect and create graphical or
terminal frames using emacsclient.
+**** emacsclient starts emacs in daemon mode and connects to it when
+--alternate-editor="" is used and emacsclient cannot connect to an
+emacs server.
+
*** The new command close-display-connection closes a connection to a
remote display.
*** Emacs can now set the frame opacity.
The opacity of a frame can be controlled by setting the `alpha' frame
parameter. This only takes effect on a compositing window manager for
-the X Window System, such as Compiz, Beryl and Compiz Fusion, or on
-Windows 2000 and later versions of Windows.
+the X Window System, such as Compiz, Beryl and Compiz Fusion, on Mac
+OS X, or on Windows 2000 and later versions of Windows.
The alpha parameter should be an integer between 0 (transparent) and
100 (opaque), or a float number between 0.0 and 1.0. It can also be a
+++
** File deletion can make use of the Recycle Bin or system Trash folder.
Set `delete-by-moving-to-trash' non-nil to use this. Deleted files
-and directories will then be sent to the Recyle Bin on Windows, and
+and directories will then be sent to the Recycle Bin on Windows, and
to `trash-directory' on other systems.
+++
** Directory-local variables can now be defined.
-By default, Emacs looks in .dir-settings.el for directory-local
-variables. For more information, see `set-directory-project' and
-`define-project-bindings'.
+By default, Emacs looks in .dir-locals.el for directory-local
+variables. For more information, see `dir-locals-set-directory-class'
+and `dir-locals-set-class-variables'.
** Emacs can now use `auth-source' for authentication.
`smtpmail' and `url' (Tramp and Gnus also) use `auth-source' to obtain
the minibuffer that toggles word search (i.e. using key sequences
`C-s RET C-w' or `C-s M-e C-w') is obsolete. You can use the global key
`M-s w' to start word search, or type `M-s w' in Isearch mode to
-toggle word search.
+toggle word search. To start nonincremental word search you can now use
+`M-s w RET' and `M-s w C-r RET' instead of `C-s RET C-w' and `C-r RET C-w'.
++++
+** In Info, `Info-search' is unbound from `M-s' to allow using `M-s w'
+for word search as well as other search commands from the global prefix
+key `M-s'. `Info-search' is still bound to `s', and also incremental
+search commands `C-s', `C-M-s', `C-r', `C-M-r' are available for searching
+through multiple Info nodes, together with their nonincremental versions
+`C-s RET', `C-r RET', `C-M-s RET', `C-M-r RET', `M-s w RET'.
+
+---
** In Text mode, `center-line' and `center-paragraph' are rebound
from `M-s' and `M-S' to global keys `M-o M-s' and `M-o M-S' on the
global prefix map `M-o' intended for such formatting commands.
** Minibuffer and completion changes
+++
+*** Emacs may ask for confirmation before opening a non-existent file
+or buffer. By default, Emacs requests confirmation if you type RET
+immediately after TAB, and the resulting input is not an existing file
+or buffer; this usually happens when the minibuffer input did not
+complete far enough and you entered RET by mistake. In that case,
+Emacs puts the message "[Confirm]" in the minibuffer; type RET again
+to create the file or buffer.
+
+The new variable confirm-nonexistent-file-or-buffer determines whether
+Emacs asks for confirmation. The default value is `after-completion'.
+If you change it to t, Emacs always asks for confirmation; if you
+change it to nil, Emacs never asks for confirmation.
++++
*** When M-n in the minibuffer reaches the end of the list of defaults,
it adds the completion list to the end, so next M-n continues putting
completion items to the minibuffer. The same principle applies to
+++
*** S-down-mouse-1 now pops up a menu for changing the font and text
size of the default face in the current buffer. The face is changed
-via face remapping (see below).
+via face remapping (see Lisp changes, below).
++++
+*** New commands to change the default face size in the current buffer.
+To increase it, type `C-x C-+' or `C-x C-='. To decrease it, type
+`C-x C--'. To restore the default (global) face size, type `C-x C-0'.
+These work via Text Scale mode, a new minor mode.
-*** FIXME face-remap
+The final key in the above commands may be repeated without the
+leading `C-x', e.g. `C-x C-= C-= C-=' increases the face height by
+three steps. Each step scales the height of the default face by the
+value of the variable `text-scale-mode-step'.
+
+*** The command `buffer-face-mode' prompts for a face name, and remaps
+the default face in the current buffer to that specified face. The
+command `variable-pitch-mode' turns on Buffer Face mode for the
+`variable-pitch' face.
** Primary selection changes
+++
*** You can disable kill ring commands from accessing the primary
selection by setting `x-select-enable-primary' to nil.
+---
** Continuation lines can now be wrapped at word boundaries
(word-wrapping). This is controlled by the new per-buffer variable
`word-wrap'. Word wrapping does not take place if continuation lines
New Modes and Packages, below.
** Window management changes
-
++++
*** truncate-partial-width-windows now accepts integer values, which
specify a minimum window width for partial-width windows, below which
lines are truncated. The default has been changed to 50.
*** The new command balance-windows-area balances windows both
vertically and horizontally.
-
+---
*** pop-to-buffer now always sets input focus when the popped-to window
is on a different frame.
*** C-l is bound to the new command recenter-top-bottom, rather than recenter.
This moves the current line to window center, top and bottom on
successive invokations.
-
++++
*** scroll-preserve-screen-position also preserves the column position.
+++
*** If `yank-pop-change-selection' is t, rotating the kill ring also
*** The new commands `pp-macroexpand-expression' and
`pp-macroexpand-last-sexp' pretty-print macro expansions.
-
++++
*** The new command `set-file-modes' allows to set file's mode bits.
The mode bits can be specified in symbolic notation, like with GNU
-Coreutils, in addition to an octal number.
-+++
-*** Emacs requires confirmation before opening a non-existent file or buffer.
-You can recover the previous behavior by setting
-confirm-nonexistent-file-or-buffer to nil.
+Coreutils, in addition to an octal number. `chmod' is a new
+convenience alias for this function.
*** `next-error-recenter' specifies how next-error should recenter the
visited source file. Its value can be a number (for example, 0 for
D-Bus is an inter-process communication mechanism for applications
residing on the same host. See the manual for details.
-** Doc View mode allows viewing of PDF, PostScript and DVI documents.
++++
+** DocView mode allows viewing of PDF, PostScript and DVI documents.
One can also search for a regular expression in the document. For
details, see the commentary in doc-view.el.
** minibuffer-depth-indicate-mode shows the minibuffer depth in the prompt.
++++
** nXML Mode
This is a new mode for editing XML documents. It allows a schema to
be associated with the XML document being edited, using Relax NG as
attribute name or data value by using information about what is
allowed by the schema in that context.
-** proced.el provides a Dired-like interface for operating on processes.
-Proced makes an Emacs buffer containing a listing of the current
-processes (using ps(1)). You can use the normal Emacs commands to
-move around in this buffer, and special Proced commands to operate on
-the processes listed.
+** proced.el provides a Dired-like interface for operating on
+processes. Proced makes an Emacs buffer containing a listing of the
+current processes. You can use the normal Emacs commands to move
+around in this buffer, and special Proced commands to operate on the
+processes listed. It is currently only functional on GNU/Linux,
+MS-Windows and Solaris.
** Remember Mode is a mode for jotting down things to remember.
Notes can be saved to a Diary file. For details, see the Remember
Manual.
-** RST mode is a major mode for editing ReSTructured-Text files.
+** RST mode is a major mode for editing reStructuredText files.
+
++++
+** Ruby mode is a major mode for Ruby files.
+++
** Visual Line mode provides support for editing by visual lines.
Note, however, that the free version of the unrar command only handles
versions 1 and 2 of the Rar format.
+---
** BibTeX mode
*** New command `bibtex-initialize' (re)initializes BibTeX buffers.
Command*'.
+++
*** `M-s f C-s' and `M-s f M-C-s' run Isearch that matches only at file names.
-When a new user option `dired-isearch-filenames' is non-nil, then even
-ordinary Isearch started with `C-s' and `C-M-s' matches only at file names
-in the Dired buffer. You can toggle file names matching on or off
-by typing `M-s f' in Isearch mode.
+When a new user option `dired-isearch-filenames' is t, then even ordinary
+Isearch started with `C-s' and `C-M-s' matches only at file names in the
+Dired buffer. When `dired-isearch-filenames' is `dwim' then activation of
+file name Isearch depends on the position of point - if point is on a file
+name initially, then Isearch matches only file names, otherwise it matches
+everywhere in the Dired buffer. You can toggle file names matching on or
+off by typing `M-s f' in Isearch mode.
+++
*** `M-s a C-s' and `M-s a M-C-s' run multi-file Isearch on the marked files.
They visit the first marked file in the sequence and display the usual Isearch
corresponding remote host.
** TeX modes
-
+---
*** New option latex-indent-within-escaped-parens
permits to customize indentation of LaTeX environments delimited
by escaped parens.
status. It allows to apply various VC operations to a file, a
directory or a set of files/directories.
+++
+*** VC switches are no longer appended, rather the first non-nil value is used.
+(This was for the most part true in Emacs 22, but was not advertised).
+This is because there is an increasing variety of VC systems, and they
+do not all accept the same "common" options. For example, a CVS diff
+command used to append the values of `vc-cvs-diff-switches',
+`vc-diff-switches', and `diff-switches'. Now the first non-nil value
+from that sequence is used. The special value `t' means "no switches".
++++
*** Clicking on the VC mode-line entry now pops the VC menu.
+++
*** The VC mode-line entry now has a tooltip that explains the VC file status.
*** comint-mode uses `start-file-process' now (see Lisp Changes).
If `default-directory' is a remote file name, subprocesses are started
on the corresponding remote system.
-
+---
*** Eldoc highlights the function argument under point
with the face `eldoc-highlight-function-argument'.
+++
*** The new variable `ffap-rfc-directories' specifies a list of local
directories in which `ffap-rfc' will first search for RFCs.
-
++++
*** hide-ifdef-mode allows shadowing ifdef-blocks instead of hiding them.
See option `hide-ifdef-shadow' and function `hide-ifdef-toggle-shadowing'.
*** view-remove-frame-by-deleting is now by default t
since users found iconification of view-mode frames distracting.
-
+---
*** WoMan tries to add locale-specific manual page directories to the
search path. This can be disabled by setting `woman-locale' to nil.
** New coding system alias `emacs-internal'.
++++
+** The new variable `generate-autoload-cookie' controls the magic comment
+string used by `update-file-autoloads' to find autoloaded forms. The
+variable `generated-autoload-file' similarly controls the name of the
+file where `update-file-autoloads' writes the calls to `autoload'.
+The default values are ";;;###autoload" and `loaddefs.el',
+respectively.
+
+++
** New primitives `list-system-processes' and `system-process-attributes'
let Lisp programs access the processes that are running on the local
an active region that they should operate on.
*** `region-active-p' returns non-nil when Transient Mark mode is
-enabled and there is an active region. This is NOT the best function
-to use to test whether a command should operate on the region instead
-of the usual behavior -- for that, use `use-region-p'.
+enabled and the mark is active. Most commands that act specially on
+the active region in Transient Mark mode should use `use-region-p'
+instead of `region-active-p', because `use-region-p' obeys the new
+user option `use-empty-active-region' (see Editing Changes, above).
+++
*** If a command sets `transient-mark-mode' to (only . OLDVAL), that
*** If pop-up-frames has the value `graphic-only', display-buffer only
makes a separate frame on graphic displays.
++++
*** select-frame and set-frame-selected-window have new optional
argument NORECORD. If non-nil, this will avoid messing with the order
of recently selected windows and the buffer list.
*** minibuffer-local-must-match-filename-map is now named
minibuffer-local-filename-must-match-map.
----
-*** `all-completions' may now return the base size in the last cdr.
-Since this means the returned list is not properly nil-terminated, this
-is an incompatible change and is thus enabled by the new variable
-completion-all-completions-with-base-size.
-
+++
-*** The `require-match' argument to `completing-read' accepts a new value
-`confirm-only'.
+*** The `require-match' argument to `completing-read' accepts the new
+values `confirm-only' and `confirm-after-completion'.
** Search and replacement changes
+++
*** file-local-variables-alist stores an alist of file-local
variables defined in the current buffer.
+** Face-remapping
+
+*** Each face can be remapped to a different face definition using the
+variable `face-remapping-alist'. This is an alist that maps faces to
+replacement definitions (which can be face names, lists of face names,
+or attribute/value plists. If this variable is buffer-local, the
+remapping occurs only in that buffer.
+
+*** text-scale-mode remaps the default face to a larger or smaller
+size in the current buffer. This feature is used by the Buffer Face
+menu and the new `C-x C-+', `C-x C--', and `C-x C-0' commands (see
+Editing Changes, above).
+
+*** New functions:
+
+**** `face-remap-add-relative' adds a face remapping entry to the
+current buffer.
+
+**** ``face-remap-remove-relative' removes a face remapping entry from
+the current buffer.
+
+**** `face-remap-reset-base' restores a face to its global definition.
+
+**** `face-remap-set-base' sets the base remapping of a face.
+
** Process changes
+++
*** The new function `start-file-process' is similar to `start-process',
In buffers and strings, characters are represented by UTF-8 byte
sequences in a multibyte buffer/string.
++++
The concept of a charset has changed. A single character may belong
to multiple charsets (e.g. a-grave, U+00E0, belongs to charsets
unicode, iso-8859-1, iso-8859-3, etc).
+---
*** The functions `split-char' and `make-char' now accept up to 4
positional codes instead of just 2.
++++
*** The functions `encode-char' and `decode-char' now accept any character sets.
+---
*** The function `define-charset' now accepts a completely different
form of arguments (old-style arguments still work).
++++
*** The value of the function `char-charset' depends on the current
priorities of charsets.
++++
*** The function get-char-code-property now accepts many Unicode base
character properties. They are `name', `general-category',
`canonical-combining-class', `bidi-class', `decomposition',
*** New functions:
++++
**** `characterp' returns t if and only if the argument is a character.
This replaces `char-valid-p', which is now obsolete.
++++
**** `max-char' returns the maximum character code (currently #x3FFFFF).
+---
**** `define-charset-alias' defines an alias of a charset.
++++
**** `set-charset-priority' sets priorities of charsets.
++++
**** `charset-priority-list' returns a prioritized list of charsets.
++++
**** `unibyte-string' makes a unibyte string from bytes.
+---
**** `define-char-code-property' defines a character code property.
++++
**** `char-code-property-description' returns the description string of
a character code property.
**** `find-word-boundary-function-table' is a char-table of functions to
search for a word boundary.
++++
**** `char-script-table' is a char-table of script names.
++++
**** `char-width-table' is a char-table of character widths.
+---
**** `print-charset-text-property' controls how to handle `charset' text
property on printing a string.
++++
**** `printable-chars' is a char-table of printable characters.
** Code conversion changes
+---
*** The new function `define-coding-system' should be used to define a
coding system instead of `make-coding-system' (which is now obsolete).
++++
*** The functions `encode-coding-region' and `decode-coding-region'
have an optional 4th argument to specify where the result of
conversion should go.
++++
*** The functions `encode-coding-string' and `decode-coding-string'
have an optional 4th argument specifying a buffer to store the result
of conversion.
+---
*** The functions `set-coding-priority' and `make-coding-system' are obsolete.
*** New functions:
++++
**** `with-coding-priority' executes Lisp code using the specified
coding system priority order.
++++
**** `check-coding-systems-region' checks if the text in the region is
encodable by the specified coding systems.
++++
**** `coding-system-aliases' returns a list of aliases of a coding system.
++++
**** `coding-system-charset-list' returns a list of charsets supported
by a coding system.
++++
**** `coding-system-priority-list' returns a list of coding systems
ordered by their priorities.
++++
**** `set-coding-system-priority' sets priorities of coding systems.
** There is a new input method, Robin, different from Quail.
*** The new function `robin-use-package' starts using a Robin package
as an input method.
++++
*** The new function `string-to-unibyte' is like `string-as-unibyte'
but signals an error if STRING contains a non-ASCII, non-eight-bit
character.
** Changes related to multiple-terminal (multi-tty) support
+---
*** $TERM is now set to `dumb' for subprocesses. If you want to know the
$TERM inherited by Emacs you will have to look inside initial-environment.
+---
*** $DISPLAY is now dynamically inherited from the frame's `display'.
++++
*** The `window-system' variable is now frame-local. The new
`initial-window-system' variable contains the `window-system' value
for the first frame. `window-system' is also now a function that
*** The function `make-frame-on-display' now works during a tty
session, and `make-frame-on-tty' works during a graphical session.
-*** A new data type for terminals with functions: `get-device-terminal',
-`terminal-parameters', `terminal-parameter', `set-terminal-parameter'.
+*** A new `terminal' data type.
+The functions `get-device-terminal', `terminal-parameters',
+`terminal-parameter', `set-terminal-parameter' use this data type.
*** Function key sequences are now mapped using `local-function-key-map',
a new variable. This inherits from the global variable function-key-map,
*** `buffer-swap-text' swaps text between two buffers. This can be
useful for modes such as tar-mode, archive-mode, RMAIL.
+*** New variable `buffer-swapped-with' lets the modes that use
+`buffer-swap-text' arrange to save the file from the proper buffer.
+
+++
*** `read-color' reads a color name using the minibuffer.