Changeset 4098 for trunk/etc/NEWS

Timestamp:

07/01/06 08:27:06 (2 years ago)

Author:

miyoshi

Message:

Sync up with Emacs CVS HEAD.

Files:

• trunk/etc/NEWS (modified) (18 diffs)

trunk/etc/NEWS

@@ -1 @@
-5-21
-1999, 2000, 
+6-04
+
-          Free Software Foundation, Inc.
-See the end for copying conditions.
-
-Please send Emacs bug reports to bug-gnu-emacs@gnu.org.
-
-
-
+
+
+
+
+
+
+
+
+
-
-Temporary note:
@@ -33 +39 @@
----
-** The `emacsserver' program has been removed, replaced with Lisp code.
+
+---
+** The `yow' program has been removed.
+Use the corresponding Emacs feature instead.
-
----
@@ -88 +98 @@
-
----
-Cygwin
+a Cygwin build of Emacs
-
----
@@ -369 +379 @@
-** The default for the paper size (variable ps-paper-type) is taken
-from the locale.
-
-** The command `list-faces-display' now accepts a prefix arg.
-When passed, the function prompts for a regular expression and lists
-only faces matching this regexp.
-
-** Mark command changes:
@@ -609 +615 @@
-lists are handled.  t, the default, specifies the standard querying
-behavior.  :safe means use only safe values, and ignore the rest.
+:all means set all variables, whether or not they are safe.
-nil means ignore them all.  Anything else means always query.
-
@@ -765 +772 @@
-
-+++
+*** Preemptive redisplay now adapts to current load and bandwidth.
+
+To avoid preempting redisplay on fast computers, networks, and displays,
+the arrival of new input is now performed at regular intervals during
+redisplay.  The new variable `redisplay-preemption-period' specifies
+the period; the default is to check for input every 0.1 seconds.
+
++++
-*** The mode line position information now comes before the major mode.
-When the file is maintained under version control, that information
@@ -989 +1004 @@
-*** The pop up menus for Lucid now stay up if you do a fast click and can
-be navigated with the arrow keys (like Gtk+, Mac and W32).
+
++++
+*** The menu bar for Motif/Lesstif/Lucid/Gtk+ can be navigated with keys.
+Pressing F10 shows the first menu in the menu bar.  Navigation is done with
+the arrow keys, select with the return key and cancel with the escape keys.
-
-+++
@@ -1079 +1099 @@
-
-** Multilingual Environment (Mule) changes:
+
+*** You can disable character translation for a file using the -*-
+construct.  Include `enable-character-translation: nil' inside the
+-*-...-*- to disable any character translation that may happen by
+various global and per-coding-system translation tables.  You can also
+specify it in a local variable list at the end of the file.  For
+shortcut, instead of using this long variable name, you can append the
+character "!" at the end of coding-system name specified in -*-
+construct or in a local variable list.  For example, if a file has the
+following header, it is decoded by the coding system `iso-latin-1'
+without any character translation:
+;; -*- coding: iso-latin-1!; -*-
-
----
@@ -1908 +1940 @@
-boundaries during scrolling.
-
++++
-** The file t-mouse.el is now part of Emacs and provides access to mouse
-events from the console.  It still requires gpm to work but has been updated
@@ -3116 +3149 @@
-** MH-E changes.
-
-
+1.
-version 5.0.2; see MH-E-NEWS for details.
-
@@ -3441 +3474 @@
----
-** cplus-md.el has been deleted.
+
+** Ewoc changes
+
+*** The new function `ewoc-delete' deletes specified nodes.
+
+*** `ewoc-create' now takes optional arg NOSEP, which inhibits insertion of
+a newline after each pretty-printed entry and after the header and footer.
+This allows you to create multiple-entry ewocs on a single line and to
+effect "invisible" nodes by arranging for the pretty-printer to not print
+anything for those nodes.
+
+For example, these two sequences of expressions behave identically:
+
+;; NOSEP nil
+(defun PP (data) (insert (format "%S" data)))
+(ewoc-create 'PP "start\n")
+
+;; NOSEP t
+(defun PP (data) (insert (format "%S\n" data)))
+(ewoc-create 'PP "start\n\n" "\n" t)
+
-
-* Changes in Emacs 22.1 on non-free operating systems
@@ -3592 +3646 @@
-there is no longer a shortage of memory.
-
-** The ewoc package no longer inserts a newline after each pretty-printed
-entry and after the header and footer, to allow for multiple-entry ewocs to
-display on a single line.
-
-To make pre-existing client code behave the same way as before, you must
-arrange to insert a newline in three places: the pretty-printer function,
-the header and the footer.  It is anyway a good idea to specify a non-empty
-footer so that markers after the ewoc's buffer text are properly updated.
-For example:
-
-;; before
-(defun PP (data) (insert (format "%S" data)))
-(ewoc-create 'PP "start\n")
-
-;; now
-(defun PP (data) (insert (format "%S\n" data)))
-(ewoc-create 'PP "start\n\n" "\n")
-
-
-* Lisp Changes in Emacs 22.1
@@ -3870 +3906 @@
-`assoc-ignore-representation', which are still available, but have
-been declared obsolete.
+
++++
+*** New syntax: \uXXXX and \UXXXXXXXX specify Unicode code points in hex.
+Use "\u0428" to specify a string consisting of CYRILLIC CAPITAL LETTER SHA,
+or "\U0001D6E2" to specify one consisting of MATHEMATICAL ITALIC CAPITAL
+ALPHA (the latter is greater than #xFFFF and thus needs the longer
+syntax).  Also available for characters.
-
-+++
@@ -4256 +4299 @@
-
-+++
-*** `copy-file' now takes an additional option arg MUSTBENEW.
-
-This argument works like the MUSTBENEW argument of write-file.
-
-+++
-*** `visited-file-modtime' and `calendar-time-from-absolute' now return
-a list of two integers, instead of a cons.
@@ -4374 +4412 @@
-It is like `read-file-name' except that the defaulting works better
-for directories, and completion inside it shows only directories.
+
++++
+*** The new variable `history-add-new-input' specifies whether to add new
+elements in history.  If set to nil, minibuffer reading functions don't
+add new elements to the history list, so it is possible to do this
+afterwards by calling `add-to-history' explicitly.
-
-** Completion changes:
@@ -4682 +4726 @@
-
-+++
-*** New function `window-body-height'.
-
-This is like `window-height' but does not count the mode line
-or the header line.
-
-+++
-*** You can now make a window as short as one line.
-
@@ -4835 +4873 @@
-+++
-*** `sit-for' can now be called with args (SECONDS &optional NODISP).
+
++++
+*** `sit-for' called with a negative SECONDS value now forces an
+immediate redisplay even if input is pending.
-
-+++
@@ -5648 +5690 @@
-This macro is a no-op except during test-coverage -- then it signals
-an error if the argument actually returns differing values.
+
+
-
-* Installation changes in Emacs 21.3
-
-** Support for GNU/Linux on little-endian MIPS and on IBM S390 has
-been added.
-
-
-* Changes in Emacs 21.3
-
-** The obsolete C mode (c-mode.el) has been removed to avoid problems
-with Custom.
-
-** UTF-16 coding systems are available, encoding the same characters
-as mule-utf-8.
-
-** There is a new language environment for UTF-8 (set up automatically
-in UTF-8 locales).
-
-** Translation tables are available between equivalent characters in
-different Emacs charsets -- for instance `e with acute' coming from the
-Latin-1 and Latin-2 charsets.  User options `unify-8859-on-encoding-mode'
-and `unify-8859-on-decoding-mode' respectively turn on translation
-between ISO 8859 character sets (`unification') on encoding
-(e.g. writing a file) and decoding (e.g. reading a file).  Note that
-`unify-8859-on-encoding-mode' is useful and safe, but
-`unify-8859-on-decoding-mode' can cause text to change when you read
-it and write it out again without edits, so it is not generally advisable.
-By default `unify-8859-on-encoding-mode' is turned on.
-
-** In Emacs running on the X window system, the default value of
-`selection-coding-system' is now `compound-text-with-extensions'.
-
-If you want the old behavior, set selection-coding-system to
-compound-text, which may be significantly more efficient.  Using
-compound-text-with-extensions seems to be necessary only for decoding
-text from applications under XFree86 4.2, whose behavior is actually
-contrary to the compound text specification.
-
-
-* Installation changes in Emacs 21.2
-
-** Support for BSD/OS 5.0 has been added.
-
-** Support for AIX 5.1 was added.
-
-
-* Changes in Emacs 21.2
-
-** Emacs now supports compound-text extended segments in X selections.
-
-X applications can use `extended segments' to encode characters in
-compound text that belong to character sets which are not part of the
-list of approved standard encodings for X, e.g. Big5.  To paste
-selections with such characters into Emacs, use the new coding system
-compound-text-with-extensions as the value of selection-coding-system.
-
-** The default values of `tooltip-delay' and `tooltip-hide-delay'
-were changed.
-
-** On terminals whose erase-char is ^H (Backspace), Emacs
-now uses normal-erase-is-backspace-mode.
-
-** When the *scratch* buffer is recreated, its mode is set from
-initial-major-mode, which normally is lisp-interaction-mode,
-instead of using default-major-mode.
-
-** The new option `Info-scroll-prefer-subnodes' causes Info to behave
-like the stand-alone Info reader (from the GNU Texinfo package) as far
-as motion between nodes and their subnodes is concerned.  If it is t
-(the default), Emacs behaves as before when you type SPC in a menu: it
-visits the subnode pointed to by the first menu entry.  If this option
-is nil, SPC scrolls to the end of the current node, and only then goes
-to the first menu item, like the stand-alone reader does.
-
-This change was already in Emacs 21.1, but wasn't advertised in the
-NEWS.
-
-
-* Lisp Changes in Emacs 21.2
-
-** The meanings of scroll-up-aggressively and scroll-down-aggressively
-have been interchanged, so that the former now controls scrolling up,
-and the latter now controls scrolling down.
-
-** The variable `compilation-parse-errors-filename-function' can
-be used to transform filenames found in compilation output.
-
-
-* Installation Changes in Emacs 21.1
-
-See the INSTALL file for information on installing extra libraries and
-fonts to take advantage of the new graphical features and extra
-charsets in this release.
-
-** Support for GNU/Linux on IA64 machines has been added.
-
-** Support for LynxOS has been added.
-
-** There are new configure options associated with the support for
-images and toolkit scrollbars.  Use the --help option in `configure'
-to list them.
-
-** You can build a 64-bit Emacs for SPARC/Solaris systems which
-support 64-bit executables and also on Irix 6.5.  This increases the
-maximum buffer size.  See etc/MACHINES for instructions.  Changes to
-build on other 64-bit systems should be straightforward modulo any
-necessary changes to unexec.
-
-** There is a new configure option `--disable-largefile' to omit
-Unix-98-style support for large files if that is available.
-
-** There is a new configure option `--without-xim' that instructs
-Emacs to not use X Input Methods (XIM), if these are available.
-
-** `movemail' defaults to supporting POP.  You can turn this off using
-the --without-pop configure option, should that be necessary.
-
-** This version can be built for the Macintosh, but does not implement
-all of the new display features described below.  The port currently
-lacks unexec, asynchronous processes, and networking support.  See the
-"Emacs and the Mac OS" appendix in the Emacs manual, for the
-description of aspects specific to the Mac.
-
-** Note that the MS-Windows port does not yet implement various of the
-new display features described below.
-
-
-* Changes in Emacs 21.1
-
-** Emacs has a new redisplay engine.
-
-The new redisplay handles characters of variable width and height.
-Italic text can be used without redisplay problems.  Fonts containing
-oversized characters, i.e. characters larger than the logical height
-of a font can be used.  Images of various formats can be displayed in
-the text.
-
-** Emacs has a new face implementation.
-
-The new faces no longer fundamentally use X font names to specify the
-font.  Instead, each face has several independent attributes--family,
-height, width, weight and slant--that it may or may not specify.
-These attributes can be merged from various faces, and then together
-specify a font.
-
-Faces are supported on terminals that can display color or fonts.
-These terminal capabilities are auto-detected.  Details can be found
-under Lisp changes, below.
-
-** Emacs can display faces on TTY frames.
-
-Emacs automatically detects terminals that are able to display colors.
-Faces with a weight greater than normal are displayed extra-bright, if
-the terminal supports it.  Faces with a weight less than normal and
-italic faces are displayed dimmed, if the terminal supports it.
-Underlined faces are displayed underlined if possible.  Other face
-attributes such as `overline', `strike-through', and `box' are ignored
-on terminals.
-
-The command-line options `-fg COLOR', `-bg COLOR', and `-rv' are now
-supported on character terminals.
-
-Emacs automatically remaps all X-style color specifications to one of
-the colors supported by the terminal.  This means you could have the
-same color customizations that work both on a windowed display and on
-a TTY or when Emacs is invoked with the -nw option.
-
-** New default font is Courier 12pt under X.
-
-** Sound support
-
-Emacs supports playing sound files on GNU/Linux and FreeBSD (Voxware
-driver and native BSD driver, a.k.a. Luigi's driver).  Currently
-supported file formats are RIFF-WAVE (*.wav) and Sun Audio (*.au).
-You must configure Emacs with the option `--with-sound=yes' to enable
-sound support.
-
-** Emacs now resizes mini-windows if appropriate.
-
-If a message is longer than one line, or minibuffer contents are
-longer than one line, Emacs can resize the minibuffer window unless it
-is on a frame of its own.  You can control resizing and the maximum
-minibuffer window size by setting the following variables:
-
-- User option: max-mini-window-height
-
-Maximum height for resizing mini-windows.  If a float, it specifies a
-fraction of the mini-window frame's height.  If an integer, it
-specifies a number of lines.
-
-Default is 0.25.
-
-- User option: resize-mini-windows
-
-How to resize mini-windows.  If nil, don't resize.  If t, always
-resize to fit the size of the text.  If `grow-only', let mini-windows
-grow only, until they become empty, at which point they are shrunk
-again.
-
-Default is `grow-only'.
-
-** LessTif support.
-
-Emacs now runs with the LessTif toolkit (see
-<http://www.lesstif.org>).  You will need version 0.92.26, or later.
-
-** LessTif/Motif file selection dialog.
-
-When Emacs is configured to use LessTif or Motif, reading a file name
-from a menu will pop up a file selection dialog if `use-dialog-box' is
-non-nil.
-
-** File selection dialog on MS-Windows is supported.
-
-When a file is visited by clicking File->Open, the MS-Windows version
-now pops up a standard file selection dialog where you can select a
-file to visit.  File->Save As also pops up that dialog.
-
-** Toolkit scroll bars.
-
-Emacs now uses toolkit scroll bars if available.  When configured for
-LessTif/Motif, it will use that toolkit's scroll bar.  Otherwise, when
-configured for Lucid and Athena widgets, it will use the Xaw3d scroll
-bar if Xaw3d is available.  You can turn off the use of toolkit scroll
-bars by specifying `--with-toolkit-scroll-bars=no' when configuring
-Emacs.
-
-When you encounter problems with the Xaw3d scroll bar, watch out how
-Xaw3d is compiled on your system.  If the Makefile generated from
-Xaw3d's Imakefile contains a `-DNARROWPROTO' compiler option, and your
-Emacs system configuration file `s/your-system.h' does not contain a
-define for NARROWPROTO, you might consider adding it.  Take
-`s/freebsd.h' as an example.
-
-Alternatively, if you don't have access to the Xaw3d source code, take
-a look at your system's imake configuration file, for example in the
-directory `/usr/X11R6/lib/X11/config' (paths are different on
-different systems).  You will find files `*.cf' there.  If your
-system's cf-file contains a line like `#define NeedWidePrototypes NO',
-add a `#define NARROWPROTO' to your Emacs system configuration file.
-
-The reason for this is that one Xaw3d function uses `double' or
-`float' function parameters depending on the setting of NARROWPROTO.
-This is not a problem when Imakefiles are used because each system's
-imake configuration file contains the necessary information.  Since
-Emacs doesn't use imake, this has do be done manually.
-
-** Tool bar support.
-
-Emacs supports a tool bar at the top of a frame under X.  For details
-of how to define a tool bar, see the page describing Lisp-level
-changes.  Tool-bar global minor mode controls whether or not it is
-displayed and is on by default.  The appearance of the bar is improved
-if Emacs has been built with XPM image support.  Otherwise monochrome
-icons will be used.
-
-To make the tool bar more useful, we need contributions of extra icons
-for specific modes (with copyright assignments).
-
-** Tooltips.
-
-Tooltips are small X windows displaying a help string at the current
-mouse position.  The Lisp package `tooltip' implements them.  You can
-turn them off via the user option `tooltip-mode'.
-
-Tooltips also provides support for GUD debugging.  If activated,
-variable values can be displayed in tooltips by pointing at them with
-the mouse in source buffers.  You can customize various aspects of the
-tooltip display in the group `tooltip'.
-
-** Automatic Hscrolling
-
-Horizontal scrolling now happens automatically if
-`automatic-hscrolling' is set (the default).  This setting can be
-customized.
-
-If a window is scrolled horizontally with set-window-hscroll, or
-scroll-left/scroll-right (C-x <, C-x >), this serves as a lower bound
-for automatic horizontal scrolling.  Automatic scrolling will scroll
-the text more to the left if necessary, but won't scroll the text more
-to the right than the column set with set-window-hscroll etc.
-
-** When using a windowing terminal, each Emacs window now has a cursor
-of its own.  By default, when a window is selected, the cursor is
-solid; otherwise, it is hollow.  The user-option
-`cursor-in-non-selected-windows' controls how to display the
-cursor in non-selected windows.  If nil, no cursor is shown, if
-non-nil a hollow box cursor is shown.
-
-** Fringes to the left and right of windows are used to display
-truncation marks, continuation marks, overlay arrows and alike.  The
-foreground, background, and stipple of these areas can be changed by
-customizing face `fringe'.
-
-** The mode line under X is now drawn with shadows by default.
-You can change its appearance by modifying the face `mode-line'.
-In particular, setting the `:box' attribute to nil turns off the 3D
-appearance of the mode line.  (The 3D appearance makes the mode line
-occupy more space, and thus might cause the first or the last line of
-the window to be partially obscured.)
-
-The variable `mode-line-inverse-video', which was used in older
-versions of emacs to make the mode-line stand out, is now deprecated.
-However, setting it to nil will cause the `mode-line' face to be
-ignored, and mode-lines to be drawn using the default text face.
-
-** Mouse-sensitive mode line.
-
-Different parts of the mode line have been made mouse-sensitive on all
-systems which support the mouse.  Moving the mouse to a
-mouse-sensitive part in the mode line changes the appearance of the
-mouse pointer to an arrow, and help about available mouse actions is
-displayed either in the echo area, or in the tooltip window if you
-have enabled one.
-
-Currently, the following actions have been defined:
-
-- Mouse-1 on the buffer name in the mode line goes to the next buffer.
-
-- Mouse-3 on the buffer-name goes to the previous buffer.
-
-- Mouse-2 on the read-only or modified status in the mode line (`%' or
-`*') toggles the status.
-
-- Mouse-3 on the major mode name displays a major mode menu.
-
-- Mouse-3 on the mode name displays a minor-mode menu.
-
-** Hourglass pointer
-
-Emacs can optionally display an hourglass pointer under X.  You can
-turn the display on or off by customizing group `cursor'.
-
-** Blinking cursor
-
-M-x blink-cursor-mode toggles a blinking cursor under X and on
-terminals having terminal capabilities `vi', `vs', and `ve'.  Blinking
-and related parameters like frequency and delay can be customized in
-the group `cursor'.
-
-** New font-lock support mode `jit-lock-mode'.
-
-This support mode is roughly equivalent to `lazy-lock' but is
-generally faster.  It supports stealth and deferred fontification.
-See the documentation of the function `jit-lock-mode' for more
-details.
-
-Font-lock uses jit-lock-mode as default support mode, so you don't
-have to do anything to activate it.
-
-** The default binding of the Delete key has changed.
-
-The new user-option `normal-erase-is-backspace' can be set to
-determine the effect of the Delete and Backspace function keys.
-
-On window systems, the default value of this option is chosen
-according to the keyboard used.  If the keyboard has both a Backspace
-key and a Delete key, and both are mapped to their usual meanings, the
-option's default value is set to t, so that Backspace can be used to
-delete backward, and Delete can be used to delete forward.  On
-keyboards which either have only one key (usually labeled DEL), or two
-keys DEL and BS which produce the same effect, the option's value is
-set to nil, and these keys delete backward.
-
-If not running under a window system, setting this option accomplishes
-a similar effect by mapping C-h, which is usually generated by the
-Backspace key, to DEL, and by mapping DEL to C-d via
-`keyboard-translate'.  The former functionality of C-h is available on
-the F1 key.  You should probably not use this setting on a text-only
-terminal if you don't have both Backspace, Delete and F1 keys.
-
-Programmatically, you can call function normal-erase-is-backspace-mode
-to toggle the behavior of the Delete and Backspace keys.
-
-** The default for user-option `next-line-add-newlines' has been
-changed to nil, i.e. C-n will no longer add newlines at the end of a
-buffer by default.
-
-** The <home> and <end> keys now move to the beginning or end of the
-current line, respectively.  C-<home> and C-<end> move to the
-beginning and end of the buffer.
-
-** Emacs now checks for recursive loads of Lisp files.  If the
-recursion depth exceeds `recursive-load-depth-limit', an error is
-signaled.
-
-** When an error is signaled during the loading of the user's init
-file, Emacs now pops up the *Messages* buffer.
-
-** Emacs now refuses to load compiled Lisp files which weren't
-compiled with Emacs.  Set `load-dangerous-libraries' to t to change
-this behavior.
-
-The reason for this change is an incompatible change in XEmacs's byte
-compiler.  Files compiled with XEmacs can contain byte codes that let
-Emacs dump core.
-
-** Toggle buttons and radio buttons in menus.
-
-When compiled with LessTif (or Motif) support, Emacs uses toolkit
-widgets for radio and toggle buttons in menus.  When configured for
-Lucid, Emacs draws radio buttons and toggle buttons similar to Motif.
-
-** The menu bar configuration has changed.  The new configuration is
-more CUA-compliant.  The most significant change is that Options is
-now a separate menu-bar item, with Mule and Customize as its submenus.
-
-** Item Save Options on the Options menu allows saving options set
-using that menu.
-
-** Highlighting of trailing whitespace.
-
-When `show-trailing-whitespace' is non-nil, Emacs displays trailing
-whitespace in the face `trailing-whitespace'.  Trailing whitespace is
-defined as spaces or tabs at the end of a line.  To avoid busy
-highlighting when entering new text, trailing whitespace is not
-displayed if point is at the end of the line containing the
-whitespace.
-
-** C-x 5 1 runs the new command delete-other-frames which deletes
-all frames except the selected one.
-
-** The new user-option `confirm-kill-emacs' can be customized to
-let Emacs ask for confirmation before exiting.
-
-** The header line in an Info buffer is now displayed as an emacs
-header-line (which is like a mode-line, but at the top of the window),
-so that it remains visible even when the buffer has been scrolled.
-This behavior may be disabled by customizing the option
-`Info-use-header-line'.
-
-** Polish, Czech, German, and French translations of Emacs' reference card
-have been added.  They are named `pl-refcard.tex', `cs-refcard.tex',
-`de-refcard.tex' and `fr-refcard.tex'.  Postscript files are included.
-
-** An `Emacs Survival Guide', etc/survival.tex, is available.
-
-** A reference card for Dired has been added.  Its name is
-`dired-ref.tex'.  A French translation is available in
-`fr-drdref.tex'.
-
-** C-down-mouse-3 is bound differently.  Now if the menu bar is not
-displayed it pops up a menu containing the items which would be on the
-menu bar.  If the menu bar is displayed, it pops up the major mode
-menu or the Edit menu if there is no major mode menu.
-
-** Variable `load-path' is no longer customizable through Customize.
-
-You can no longer use `M-x customize-variable' to customize `load-path'
-because it now contains a version-dependent component.  You can still
-use `add-to-list' and `setq' to customize this variable in your
-`~/.emacs' init file or to modify it from any Lisp program in general.
-
-** C-u C-x = provides detailed information about the character at
-point in a pop-up window.
-
-** Emacs can now support 'wheeled' mice (such as the MS IntelliMouse)
-under XFree86.  To enable this, use the `mouse-wheel-mode' command, or
-customize the variable `mouse-wheel-mode'.
-
-The variables `mouse-wheel-follow-mouse' and `mouse-wheel-scroll-amount'
-determine where and by how much buffers are scrolled.
-
-** Emacs' auto-save list files are now by default stored in a
-sub-directory `.emacs.d/auto-save-list/' of the user's home directory.
-(On MS-DOS, this subdirectory's name is `_emacs.d/auto-save.list/'.)
-You can customize `auto-save-list-file-prefix' to change this location.
-
-** The function `getenv' is now callable interactively.
-
-** The new user-option `even-window-heights' can be set to nil
-to prevent `display-buffer' from evening out window heights.
-
-** The new command M-x delete-trailing-whitespace RET will delete the
-trailing whitespace within the current restriction.  You can also add
-this function to `write-file-hooks' or `local-write-file-hooks'.
-
-** When visiting a file with M-x find-file-literally, no newlines will
-be added to the end of the buffer even if `require-final-newline' is
-non-nil.
-
-** The new user-option `find-file-suppress-same-file-warnings' can be
-set to suppress warnings ``X and Y are the same file'' when visiting a
-file that is already visited under a different name.
-
-** The new user-option `electric-help-shrink-window' can be set to
-nil to prevent adjusting the help window size to the buffer size.
-
-** New command M-x describe-character-set reads a character set name
-and displays information about that.
-
-** The new variable `auto-mode-interpreter-regexp' contains a regular
-expression matching interpreters, for file mode determination.
-
-This regular expression is matched against the first line of a file to
-determine the file's mode in `set-auto-mode' when Emacs can't deduce a
-mode from the file's name.  If it matches, the file is assumed to be
-interpreted by the interpreter matched by the second group of the
-regular expression.  The mode is then determined as the mode
-associated with that interpreter in `interpreter-mode-alist'.
-
-** New function executable-make-buffer-file-executable-if-script-p is
-suitable as an after-save-hook as an alternative to `executable-chmod'.
-
-** The most preferred coding-system is now used to save a buffer if
-buffer-file-coding-system is `undecided' and it is safe for the buffer
-contents.  (The most preferred is set by set-language-environment or
-by M-x prefer-coding-system.)  Thus if you visit an ASCII file and
-insert a non-ASCII character from your current language environment,
-the file will be saved silently with the appropriate coding.
-Previously you would be prompted for a safe coding system.
-
-** The many obsolete language `setup-...-environment' commands have
-been removed -- use `set-language-environment'.
-
-** The new Custom option `keyboard-coding-system' specifies a coding
-system for keyboard input.
-
-** New variable `inhibit-iso-escape-detection' determines if Emacs'
-coding system detection algorithm should pay attention to ISO2022's
-escape sequences.  If this variable is non-nil, the algorithm ignores
-such escape sequences.  The default value is nil, and it is
-recommended not to change it except for the special case that you
-always want to read any escape code verbatim.  If you just want to
-read a specific file without decoding escape codes, use C-x RET c
-(`universal-coding-system-argument').  For instance, C-x RET c latin-1
-RET C-x C-f filename RET.
-
-** Variable `default-korean-keyboard' is initialized properly from the
-environment variable `HANGUL_KEYBOARD_TYPE'.
-
-** New command M-x list-charset-chars reads a character set name and
-displays all characters in that character set.
-
-** M-x set-terminal-coding-system (C-x RET t) now allows CCL-based
-coding systems such as cpXXX and cyrillic-koi8.
-
-** Emacs now attempts to determine the initial language environment
-and preferred and locale coding systems systematically from the
-LC_ALL, LC_CTYPE, and LANG environment variables during startup.
-
-** New language environments `Polish', `Latin-8' and `Latin-9'.
-Latin-8 and Latin-9 correspond respectively to the ISO character sets
-8859-14 (Celtic) and 8859-15 (updated Latin-1, with the Euro sign).
-GNU Intlfonts doesn't support these yet but recent X releases have
-8859-15.  See etc/INSTALL for information on obtaining extra fonts.
-There are new Leim input methods for Latin-8 and Latin-9 prefix (only)
-and Polish `slash'.
-
-** New language environments `Dutch' and `Spanish'.
-These new environments mainly select appropriate translations
-of the tutorial.
-
-** In Ethiopic language environment, special key bindings for
-function keys are changed as follows.  This is to conform to "Emacs
-Lisp Coding Convention".
-
-    new  command                            old-binding
-    ---  -------                            -----------
-    f3   ethio-fidel-to-sera-buffer         f5
-    S-f3 ethio-fidel-to-sera-region         f5
-    C-f3 ethio-fidel-to-sera-mail-or-marker f5
-
-    f4   ethio-sera-to-fidel-buffer         unchanged
-    S-f4 ethio-sera-to-fidel-region         unchanged
-    C-f4 ethio-sera-to-fidel-mail-or-marker unchanged
-
-    S-f5 ethio-toggle-punctuation           f3
-    S-f6 ethio-modify-vowel                 f6
-    S-f7 ethio-replace-space                f7
-    S-f8 ethio-input-special-character      f8
-    S-f9 ethio-replace-space                unchanged
-    C-f9 ethio-toggle-space                 f2
-
-** There are new Leim input methods.
-New input methods "turkish-postfix", "turkish-alt-postfix",
-"greek-mizuochi", "TeX", and "greek-babel" are now part of the Leim
-package.
-
-** The rule of input method "slovak" is slightly changed.  Now the
-rules for translating "q" and "Q" to "`" (backquote) are deleted, thus
-typing them inserts "q" and "Q" respectively.  Rules for translating
-"=q", "+q", "=Q", and "+Q" to "`" are also deleted.  Now, to input
-"`", you must type "=q".
-
-** When your terminal can't display characters from some of the ISO
-8859 character sets but can display Latin-1, you can display
-more-or-less mnemonic sequences of ASCII/Latin-1 characters instead of
-empty boxes (under a window system) or question marks (not under a
-window system).  Customize the option `latin1-display' to turn this
-on.
-
-** M-; now calls comment-dwim which tries to do something clever based
-on the context.  M-x kill-comment is now an alias to comment-kill,
-defined in newcomment.el.  You can choose different styles of region
-commenting with the variable `comment-style'.
-
-** New user options `display-time-mail-face' and
-`display-time-use-mail-icon' control the appearance of mode-line mail
-indicator used by the display-time package.  On a suitable display the
-indicator can be an icon and is mouse-sensitive.
-
-** On window-systems, additional space can be put between text lines
-on the display using several methods
-
-- By setting frame parameter `line-spacing' to PIXELS.  PIXELS must be
-a positive integer, and specifies that PIXELS number of pixels should
-be put below text lines on the affected frame or frames.
-
-- By setting X resource `lineSpacing', class `LineSpacing'.  This is
-equivalent to specifying the frame parameter.
-
-- By specifying `--line-spacing=N' or `-lsp N' on the command line.
-
-- By setting buffer-local variable `line-spacing'.  The meaning is
-the same, but applies to the a particular buffer only.
-
-** The new command `clone-indirect-buffer' can be used to create
-an indirect buffer that is a twin copy of the current buffer.  The
-command `clone-indirect-buffer-other-window', bound to C-x 4 c,
-does the same but displays the indirect buffer in another window.
-
-** New user options `backup-directory-alist' and
-`make-backup-file-name-function' control the placement of backups,
-typically in a single directory or in an invisible sub-directory.
-
-** New commands iso-iso2sgml and iso-sgml2iso convert between Latin-1
-characters and the corresponding SGML (HTML) entities.
-
-** New X resources recognized
-
-*** The X resource `synchronous', class `Synchronous', specifies
-whether Emacs should run in synchronous mode.  Synchronous mode
-is useful for debugging X problems.
-
-Example:
-
-  emacs.synchronous: true
-
-*** The X resource `visualClass, class `VisualClass', specifies the
-visual Emacs should use.  The resource's value should be a string of
-the form `CLASS-DEPTH', where CLASS is the name of the visual class,
-and DEPTH is the requested color depth as a decimal number.  Valid
-visual class names are
-
-  TrueColor
-  PseudoColor
-  DirectColor
-  StaticColor
-  GrayScale
-  StaticGray
-
-Visual class names specified as X resource are case-insensitive, i.e.
-`pseudocolor', `Pseudocolor' and `PseudoColor' all have the same
-meaning.
-
-The program `xdpyinfo' can be used to list the visual classes
-supported on your display, and which depths they have.  If
-`visualClass' is not specified, Emacs uses the display's default
-visual.
-
-Example:
-
-  emacs.visualClass: TrueColor-8
-
-*** The X resource `privateColormap', class `PrivateColormap',
-specifies that Emacs should use a private colormap if it is using the
-default visual, and that visual is of class PseudoColor.  Recognized
-resource values are `true' or `on'.
-
-Example:
-
-  emacs.privateColormap: true
-
-** Faces and frame parameters.
-
-There are four new faces `scroll-bar', `border', `cursor' and `mouse'.
-Setting the frame parameters `scroll-bar-foreground' and
-`scroll-bar-background' sets foreground and background color of face
-`scroll-bar' and vice versa.  Setting frame parameter `border-color'
-sets the background color of face `border' and vice versa.  Likewise
-for frame parameters `cursor-color' and face `cursor', and frame
-parameter `mouse-color' and face `mouse'.
-
-Changing frame parameter `font' sets font-related attributes of the
-`default' face and vice versa.  Setting frame parameters
-`foreground-color' or `background-color' sets the colors of the
-`default' face and vice versa.
-
-** New face `menu'.
-
-The face `menu' can be used to change colors and font of Emacs' menus.
-
-** New frame parameter `screen-gamma' for gamma correction.
-
-The new frame parameter `screen-gamma' specifies gamma-correction for
-colors.  Its value may be nil, the default, in which case no gamma
-correction occurs, or a number > 0, usually a float, that specifies
-the screen gamma of a frame's display.
-
-PC monitors usually have a screen gamma of 2.2.  smaller values result
-in darker colors.  You might want to try a screen gamma of 1.5 for LCD
-color displays.  The viewing gamma Emacs uses is 0.4545. (1/2.2).
-
-The X resource name of this parameter is `screenGamma', class
-`ScreenGamma'.
-
-** Tabs and variable-width text.
-
-Tabs are now displayed with stretch properties; the width of a tab is
-defined as a multiple of the normal character width of a frame, and is
-independent of the fonts used in the text where the tab appears.
-Thus, tabs can be used to line up text in different fonts.
-
-** Enhancements of the Lucid menu bar
-
-*** The Lucid menu bar now supports the resource "margin".
-
-        emacs.pane.menubar.margin: 5
-
-The default margin is 4 which makes the menu bar appear like the
-LessTif/Motif one.
-
-*** Arrows that indicate sub-menus are now drawn with shadows, as in
-LessTif and Motif.
-
-** A block cursor can be drawn as wide as the glyph under it under X.
-
-As an example: if a block cursor is over a tab character, it will be
-drawn as wide as that tab on the display.  To do this, set
-`x-stretch-cursor' to a non-nil value.
-
-** Empty display lines at the end of a buffer may be marked with a
-bitmap (this is similar to the tilde displayed by vi and Less).
-
-This behavior is activated by setting the buffer-local variable
-`indicate-empty-lines' to a non-nil value.  The default value of this
-variable is found in `default-indicate-empty-lines'.
-
-** There is a new "aggressive" scrolling method.
-
-When scrolling up because point is above the window start, if the
-value of the buffer-local variable `scroll-up-aggressively' is a
-number, Emacs chooses a new window start so that point ends up that
-fraction of the window's height from the top of the window.
-
-When scrolling down because point is below the window end, if the
-value of the buffer-local variable `scroll-down-aggressively' is a
-number, Emacs chooses a new window start so that point ends up that
-fraction of the window's height from the bottom of the window.
-
-** You can now easily create new *Info* buffers using either
-M-x clone-buffer, C-u m <entry> RET or C-u g <entry> RET.
-M-x clone-buffer can also be used on *Help* and several other special
-buffers.
-
-** The command `Info-search' now uses a search history.
-
-** Listing buffers with M-x list-buffers (C-x C-b) now shows
-abbreviated file names.  Abbreviations can be customized by changing
-`directory-abbrev-alist'.
-
-** A new variable, backup-by-copying-when-privileged-mismatch, gives
-the highest file uid for which backup-by-copying-when-mismatch will be
-forced on.  The assumption is that uids less than or equal to this
-value are special uids (root, bin, daemon, etc.--not real system
-users) and that files owned by these users should not change ownership,
-even if your system policy allows users other than root to edit them.
-
-The default is 200; set the variable to nil to disable the feature.
-
-** The rectangle commands now avoid inserting undesirable spaces,
-notably at the end of lines.
-
-All these functions have been rewritten to avoid inserting unwanted
-spaces, and an optional prefix now allows them to behave the old way.
-
-** The function `replace-rectangle' is an alias for `string-rectangle'.
-
-** The new command M-x string-insert-rectangle is like `string-rectangle',
-but inserts text instead of replacing it.
-
-** The new command M-x query-replace-regexp-eval acts like
-query-replace-regexp, but takes a Lisp expression which is evaluated
-after each match to get the replacement text.
-
-** M-x query-replace recognizes a new command `e' (or `E') that lets
-you edit the replacement string.
-
-** The new command mail-abbrev-complete-alias, bound to `M-TAB'
-(if you load the library `mailabbrev'), lets you complete mail aliases
-in the text, analogous to lisp-complete-symbol.
-
-** The variable `echo-keystrokes' may now have a floating point value.
-
-** If your init file is compiled (.emacs.elc), `user-init-file' is set
-to the source name (.emacs.el), if that exists, after loading it.
-
-** The help string specified for a menu-item whose definition contains
-the property `:help HELP' is now displayed under X, on MS-Windows, and
-MS-DOS, either in the echo area or with tooltips.  Many standard menus
-displayed by Emacs now have help strings.
-
---
-** New user option `read-mail-command' specifies a command to use to
-read mail from the menu etc.
-
-** The environment variable `EMACSLOCKDIR' is no longer used on MS-Windows.
-This environment variable was used when creating lock files.  Emacs on
-MS-Windows does not use this variable anymore.  This change was made
-before Emacs 21.1, but wasn't documented until now.
-
-** Highlighting of mouse-sensitive regions is now supported in the
-MS-DOS version of Emacs.
-
-** The new command `msdos-set-mouse-buttons' forces the MS-DOS version
-of Emacs to behave as if the mouse had a specified number of buttons.
-This comes handy with mice that don't report their number of buttons
-correctly.  One example is the wheeled mice, which report 3 buttons,
-but clicks on the middle button are not passed to the MS-DOS version
-of Emacs.
-
-** Customize changes
-
-*** Customize now supports comments about customized items.  Use the
-`State' menu to add comments, or give a prefix argument to
-M-x customize-set-variable or M-x customize-set-value.  Note that
-customization comments will cause the customizations to fail in
-earlier versions of Emacs.
-
-*** The new option `custom-buffer-done-function' says whether to kill
-Custom buffers when you've done with them or just bury them (the
-default).
-
-*** If Emacs was invoked with the `-q' or `--no-init-file' options, it
-does not allow you to save customizations in your `~/.emacs' init
-file.  This is because saving customizations from such a session would
-wipe out all the other customizationss you might have on your init
-file.
-
-** If Emacs was invoked with the `-q' or `--no-init-file' options, it
-does not save disabled and enabled commands for future sessions, to
-avoid overwriting existing customizations of this kind that are
-already in your init file.
-
-** New features in evaluation commands
-
-*** The commands to evaluate Lisp expressions, such as C-M-x in Lisp
-modes, C-j in Lisp Interaction mode, and M-:, now bind the variables
-print-level, print-length, and debug-on-error based on the new
-customizable variables eval-expression-print-level,