** 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").
** The refcards are now shipped as PDF files.
+---
+** The manuals are now licensed under the GNU Free Documentation License v1.3,
+or any later version.
+
---
** Emacs 23 comes with a new set of default icons.
Various resolutions are available as etc/images/icons/hicolor/*/apps/emacs.png.
* Changes in Emacs 23.1
** Improved X Window System support
-
++++
*** Emacs now supports using both X displays and ttys in one session.
With an Emacs server active (M-x server-start), `emacsclient -t'
creates a tty frame connected to the running emacs server. You can
You can test for the presence of this feature in your Lisp code by
testing for the `multi-tty' feature.
-
-**** Emacsclient can now open new terminal frames.
-Now, the default behavior is to open a new Emacs frame by default.
-Use the -c option to get the old behavior of opening files in the
-currently selected Emacs frame.
-
++++
*** Emacs can now start in background, as a daemon when using the
--daemon command line argument. It disconnects from the terminal and
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.
option --parent-id is used to pass the parent window id to Emacs. See
http://standards.freedesktop.org/xembed-spec/xembed-spec-latest.html
for details about XEmbed.
-
++++
*** 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
has been replaced with a submenu offering three different ways to
handle long lines: truncation, continuation at the window edge, and
the new word wrapping behavior (see Editing Changes, below).
-
+---
*** Improvements to menus for major and minor modes
More major and minor modes now have a mode specific menu, and existing
mode menus have been improved to include more functionality.
---
*** The mode-line displays a mode menu when mouse-1 is clicked on a
minor mode, in the same way as it already did for major modes.
-
+---
*** The `mode-line-emphasis' face is used to highlight certain
mode-line information (e.g. waiting for a VC command to finish).
---
*** The mode-line tooltips have been improved to provide more details.
-
++++
*** The VC, line/colum number and minor mode indicators on the mode
line are now interactive: mouse-1 can be used on them to pop up a menu.
++++
** 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
inside of --eval command line arguments in order to access
following arguments.
++++
** The abbrev file is no longer read at startup in batch mode.
** Emacs now supports invocation by an X session manager.
\f
* Incompatible Editing Changes in Emacs 23.1
++++
** In Dired, `dired-flag-garbage-files' is rebound from `&' to `%&'
on the regexp command prefix map.
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.
*** When Transient Mark mode is on, M-$ now checks spelling of the
region if the region is active. Otherwise, it checks spelling of the
word at point.
-
++++
*** When Transient Mark mode is on, TAB now indents the region if the
region is active.
-
++++
*** `use-empty-active-region' controls whether an empty active region
in Transient Mark mode should make commands operate on that empty
region.
** 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
searching minibuffer completion items.
---
*** Minibuffer input of shell commands now comes with completion.
-
++++
*** In the `C-x d' (Dired) prompt, typing M-n gives the visited file
name of the current buffer.
+++
*** 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.
+
+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'.
-*** FIXME face-remap
+*** 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.
-*** New functions window-parameters, window-parameter, set-window-parameter.
-
** Miscellaneous changes:
+++
*** 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.
-
-*** If you set find-file-confirm-nonexistent-file to t, then C-x C-f
-requires confirmation before opening a non-existent file.
+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
+top line, -1 for bottom line), or nil for no recentering.
++++
+*** When typing in a password in the echo area, C-y yanks the current
+kill into the password.
\f
* New Modes and Packages in Emacs 23.1
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.
** json.el is a library for parsing and generating JSON
(JavaScript Object Notation), a lightweight data-interchange format.
++++
** linum.el is a new minor mode to display line numbers for the
current buffer.
** 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.
*** `apropos-library' describes the elements defined in a given library.
*** Set `apropos-compact-layout' is you want a more compact (but wider) layout.
++++
** Archive Mode has basic support to browse Rar archives.
+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.
source code associated with a log entry.
** Compile and grep modes
-
+---
*** The mode-line entry for the *compilation* and *grep* buffer is color coded.
It has different colors for to show that: (a) the command is still
running, (b) successful completion, (c) error.
-
++++
*** compilation-auto-jump-to-first-error tells `compile' to jump to
the first error encountered during compilations.
-
++++
+*** compilation-scroll-output accepts a new value, `first-error', which
+says to stop auto scrolling at the first error that occurs.
+---
*** The `cc' alias for C++ files in `grep-file-aliases' has been
improved. `hh' can be used to match C++ header files and `cchh' both
C++ sources and headers.
set a variable's `safe-local-variable' and `risky-local-variable' property.
** Diff mode
-
++++
*** diff-refine-hunk highlights word-level details of changes in a diff hunk.
It's used automatically as you move through hunks, see
diff-auto-refine-mode. It is bound to `C-c C-b'.
-
++++
*** diff-add-change-log-entries-other-window iterates through the diff
buffer and tries to create ChangeLog entries for each change.
It is bound to `C-x 4 A'.
-
++++
*** The new function `diff-show-trailing-whitespaces' shows
trailing whitespace problems in the modified lines of a diff buffer.
** Dired
-
++++
*** In Dired, C-x C-q now runs the command wdired-change-to-wdired-mode,
and C-x C-q in wdired-mode exits it with asking a question about
saving changes.
-
++++
*** `&' runs the command `dired-do-async-shell-command' that executes
the command asynchronously without the need to manually add ampersand
to the end of the command. Its output appears in the buffer `*Async Shell
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
prompt for a string or a regexp where all Isearch commands are available.
-
+---
*** `Q' in Dired provides two new keys for multi-file replacement.
The upper case key `Y' replaces all remaining matches in all remaining files
with no more questions. The upper case key `N' stops doing replacements
corresponding remote host.
** TeX modes
-
+---
*** New option latex-indent-within-escaped-parens
permits to customize indentation of LaTeX environments delimited
by escaped parens.
version-control systems such as Subversion, GNU Arch, Mercurial, Git
and Bzr. VC will now pass a multiple-file commit to these systems as
a single changeset.
-
++++
*** vc-dir is a new command that displays file names and their VC
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.
+++
*** In VC Annotate mode, for VC systems that support changesets, you can
+++
*** In VC Annotate mode, you can type f to show the file revision on
the current line.
-
+---
*** Asynchronous VC commands display [Waiting...] in the mode-line
of the corresponding buffer as long as the asynchronous process is
active.
-
++++
*** Log entries can be modified using the key "e" in log-view.
For now only CVS, RCS, SCCS and SVN support this functionality.
This is done by the `modify-change-comment' backend function.
-
++++
*** In log-view-mode, for VC systems that support changesets, you can
see the diff for the whole changeset (not only for the current file)
by typing the D key or using the "Changeset Diff" menu entry.
-
++++
*** In Log Edit mode, C-c C-d now shows the diff for the files involved.
*** vc-git supports the "git grep" command.
-
++++
*** VC Support for Meta-CVS has been removed for lack of maintainer able
to update it to the new VC.
*** 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'.
-
++++
*** In Etags, the --members option is now the default.
Use --no-members if you want the old default behavior of not tagging
struct members in C, members variables in C++ and variables in PHP.
-
++++
*** The `gdb' command only works with the graphical interface now.
Use `gud-gdb' if you want the (old) text command mode.
*** 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.
+
+** Window parameters can now be defined.
+These are analogous to frame parameters, but are associated with
+individual windows.
++++
+*** The new functions window-parameters, window-parameter, and
+set-window-parameter are used to query and set window parameters.
+
** Minibuffer and completion changes
+++
*** A list of default values can be specified for the DEFAULT argument of
*** 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
+++
+++
*** set-file-modes is now interactive and can take the mode value in
symbolic notation thanks to auxiliary functions.
-
+++
*** 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',
** Character code, representation, and charset changes.
++++
The character code space is now 0x0..0x3FFFFF with no gap.
Characters of code 0x0..0x10FFFF are Unicode characters of the same code points.
Characters of code 0x3FFF80..0x3FFFFF are raw 8-bit bytes.
+++
Generic characters no longer exist.
++++
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,
Convenient when checking invisibility of text with no buffer position
(e.g. in before/after-strings).
++++
*** `clear-image-cache' can be told to flush only images of a specific file.
*** `vertical-motion' can now be given a goal column.
It now accepts a cons cell (COLS . LINES) in its first argument, which
says to stop, where possible, at a pixel x-position equal to COLS
times the default column width.
++++
+*** redisplay-end-trigger-functions, set-window-redisplay-end-trigger,
+and window-redisplay-end-trigger are obsolete. Use `jit-lock-register'
+instead.
** The Lisp interpreter now treats non-breaking space as whitespace.
*** `read-shell-command' does what its name says, with completion. It
uses the minibuffer-local-shell-command-map for that.
++++
*** `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.
++++
*** `face-all-attributes' returns an alist describing all the basic
attributes of a given face.
-*** `window-full-width-p' returns t if a window is as wide as its
-frame.
-
-*** `split-string-and-unquote' does (what?)
++++
+*** `split-string-and-unquote' splits a string into a list of substrings
+on the boundaries of a given delimiter, and unquotes the substrings that
+are quoted. Useful for taking apart shell commands.
-*** `combine-and-quote-strings' does (what?)
++++
+*** `combine-and-quote-strings' produces a single string from a list of strings
+sticking a separator string in between each pair, and quoting those
+strings that include the separator as their substring. Useful for
+consing shell command lines from the individual arguments.
++++
*** `image-refresh' refreshes all images associated with a given image
specification.
++++
*** The two new functions `looking-at-p' and `string-match-p' can do
the same matching as `looking-at' and `string-match' without changing
the match data.
++++
*** The two new functions `make-serial-process' and
`serial-process-configure' provide a Lisp interface to the new serial
port support (see Emacs changes, above).
+*** `locate-user-emacs-file' helps packages to select the appropriate
+place to save user-specific files. It defaults to `user-emacs-directory'
+unless the file already exists at $HOME.
+
** Miscellaneous new variables
++++
*** `this-command-keys-shift-translated' is non-nil if the key
sequence invoking the current command was found by shift-translation.
*** `window-point-insertion-type' determines the insertion-type of the
marker used for window-point.
+---
*** bookmark provides `bookmark-make-record-function' so special major
modes like Info can teach bookmark.el how to save and restore the
relevant data.
-*** `next-error-recenter' specifies how next-error should recenter the
-visited source file. Its value can be a number (for example, 0 for
-top line, -1 for bottom line), or nil for no recentering.
-
*** `fill-forward-paragraph-function' specifies which function the
filling code should use to find paragraph boundaries.