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.
* Lisp changes made after edition 2.6 of the Emacs Lisp Manual,
(Display-related features are described in a page of their own below.)
+---
** The new function amimate-string, from lisp/play/animate.el
allows the animated display of strings.
++++
** The new function `interactive-form' can be used to obtain the
interactive form of a function.
++++
** The keyword :set-after in defcustom allows to specify dependencies
between custom options. Example:
current-language-environment even if default-input-method appears
first in a custom-set-variables statement.
++++
** The new hook `kbd-macro-termination-hook' is run at the end of
function execute-kbd-macro. Functions on this hook are called with no
args. The hook is run independent of how the macro was terminated
** The user-option `face-font-registry-alternatives' specifies
alternative font registry names to try when looking for a font.
++++
** Function `md5' calculates the MD5 "message digest"/"checksum".
+++
the echo area or pops up a buffer, depending on the length of the
message.
+---
** The new macro `with-auto-compression-mode' allows evaluating an
expression with auto-compression-mode enabled.
+++
** Image specifications accept more `:conversion's.
+---
** A `?' can be used in a symbol name without escaping it with a
backslash.
** The argument of `down-list', `backward-up-list', `up-list',
`kill-sexp', `backward-kill-sexp' and `mark-sexp' is now optional.
++++
** If `display-buffer-reuse-frames' is set, function `display-buffer'
will raise frames displaying a buffer, instead of creating a new
frame or window.
+++
** The function `delete' now also works with vectors and strings.
++++
** The meaning of the `:weakness WEAK' argument of make-hash-table
-has been changed.
+has been changed: WEAK can now have new values `key-or-value' and
+`key-and-value', in addtion the `nil', `key', `value', and `t'.
+++
** Function `aset' stores any multibyte character in any string
** The value of the `help-echo' text property is called as a function
or evaluated, if it is not a string already, to obtain a help string.
+---
** Function `make-obsolete' now has an optional arg to say when the
function was declared obsolete.
** Function `plist-member' is renamed from `widget-plist-member' (which is
retained as an alias).
+---
** Easy-menu's :filter now works as in XEmacs.
It takes the unconverted (i.e. XEmacs) form of the menu and the result
is automatically converted to Emacs' form.
++++
** The new function `window-list' has been defined
- Function: window-list &optional FRAME WINDOW MINIBUF
minibuffer window only if it's active. MINIBUF neither nil nor t
means never include the minibuffer window.
++++
** There's a new function `some-window' defined as follows
- Function: some-window PREDICATE &optional MINIBUF ALL-FRAMES DEFAULT
If ALL-FRAMES is a frame, it means include windows on that frame.
Anything else means restrict to the selected frame.
++++
** The function `single-key-description' now encloses function key and
event names in angle brackets. When called with a second optional
argument non-nil, angle brackets won't be printed.
++++
** If the variable `message-truncate-lines' is bound to t around a
call to `message', the echo area will not be resized to display that
message; it will be truncated instead, as it was done in 20.x.
the maximum width of lines in a buffer for which Emacs displays line
numbers in the mode line. The default is 200.
++++
** `select-safe-coding-system' now also checks the most preferred
coding-system if buffer-file-coding-system is `undecided' and
DEFAULT-CODING-SYSTEM is not specified,
** The function `subr-arity' provides information about the argument
list of a primitive.
++++
** `where-is-internal' now also accepts a list of keymaps.
+++
This is probably what most current uses of `local-map' want, rather
than replacing the local map.
+---
** The obsolete variables `before-change-function' and
`after-change-function' are no longer acted upon and have been
removed. Use `before-change-functions' and `after-change-functions'
instead.
++++
** The function `apropos-mode' runs the hook `apropos-mode-hook'.
+++
** `concat' no longer accepts individual integer arguments,
as promised long ago.
++++
** The new function `float-time' returns the current time as a float.
++++
** The new variable auto-coding-regexp-alist specifies coding systems
for reading specific files, analogous to auto-coding-alist, but
patterns are checked against file contents instead of file names.
When you add a new item, please add it without either +++ or ---
so I will know I still need to look at it -- rms.
+---
*** The features `md5' and `overlay' are now provided by default.
+---
*** The special form `save-restriction' now works correctly even if the
buffer is widened inside the save-restriction and changes made outside
the original restriction. Previously, doing this would cause the saved
restriction to be restored incorrectly.
+---
*** The functions `find-charset-region' and `find-charset-string' include
`eight-bit-control' and/or `eight-bit-graphic' in the returned list
when they find 8-bit characters. Previously, they included `ascii' in a
multibyte buffer and `unknown' in a unibyte buffer.
+---
*** The functions `set-buffer-modified', `string-as-multibyte' and
`string-as-unibyte' change the byte sequence of a buffer if it
contains a character from the `eight-bit-control' character set.
+---
*** The handling of multibyte sequences in a multibyte buffer is
changed. Previously, a byte sequence matching the pattern
[\200-\237][\240-\377]+ was interpreted as a single character
bytes are independent 8-bit characters belonging to the charset
eight-bit-graphic.
+---
** Fontsets are now implemented using char-tables.
A fontset can now be specified for each independent character, for
*** The function `decompose-composite-char' is now labeled as
obsolete.
+---
** The new coding system `mac-roman' is primarily intended for use on
the Macintosh but may be used generally for Macintosh-encoded text.
+---
** The new character sets `mule-unicode-0100-24ff',
`mule-unicode-2500-33ff', and `mule-unicode-e000-ffff' have been
introduced for Unicode characters in the range U+0100..U+24FF,
which includes Unicode characters from the Latin-2 locale cannot be
encoded by Emacs with ISO 8859-2 coding system.
+---
** The new coding system `mule-utf-8' has been added.
It provides limited support for decoding/encoding UTF-8 text. For
details, please see the documentation string of this coding system.
+---
** The new character sets `japanese-jisx0213-1' and
`japanese-jisx0213-2' have been introduced for the new Japanese
standard JIS X 0213 Plane 1 and Plane 2.
++++
** The new character sets `latin-iso8859-14' and `latin-iso8859-15'
have been introduced.
** If the APPEND argument of `write-region' is an integer, it seeks to
that offset in the file before writing.
+---
** The function `add-minor-mode' has been added for convenience and
compatibility with XEmacs (and is used internally by define-minor-mode).
+---
** The function `shell-command' now sets the default directory of the
`*Shell Command Output*' buffer to the default directory of the buffer
from which the command was issued.
+---
** The functions `query-replace', `query-replace-regexp',
`query-replace-regexp-eval' `map-query-replace-regexp',
`replace-string', `replace-regexp', and `perform-replace' take two
additional optional arguments START and END that specify the region to
operate on.
+---
** The new function `count-screen-lines' is a more flexible alternative
to `window-buffer-height'.
possible to use `count-screen-lines' in any buffer, whether or not it
is currently displayed in some window.
++++
** The new function `mapc' is like `mapcar' but doesn't collect the
argument function's results.
++++
** The functions base64-decode-region and base64-decode-string now
signal an error instead of returning nil if decoding fails. Also,
-base64-decode-string now always returns a unibyte string (in Emacs 20,
-it returned a multibyte string when the result was a valid multibyte
+`base64-decode-string' now always returns a unibyte string (in Emacs
+20, it returned a multibyte string when the result was a valid multibyte
sequence).
+---
** The function sendmail-user-agent-compose now recognizes a `body'
header in the list of headers passed to it.
++++
** The new function member-ignore-case works like `member', but
ignores differences in case and text representation.
++++
** The buffer-local variable cursor-type can be used to specify the
cursor to use in windows displaying a buffer. Values are interpreted
as follows:
(bar . WIDTH) display a bar cursor with width WIDTH
others display a box cursor.
++++
** The variable open-paren-in-column-0-is-defun-start controls whether
an open parenthesis in column 0 is considered to be the start of a
defun. If set, the default, it is considered a defun start. If not
set, an open parenthesis in column 0 has no special meaning.
++++
** The new function `string-to-syntax' can be used to translate syntax
specifications in string form as accepted by `modify-syntax-entry' to
the cons-cell form that is used for the values of the `syntax-table'
(string-to-syntax "()")
=> (4 . 41)
++++
** Emacs' reader supports CL read syntax for integers in bases
other than 10.
#25rah
=> 267
++++
** The function `documentation-property' now evaluates the value of
the given property to obtain a string if it doesn't refer to etc/DOC
and isn't a string.
++++
** If called for a symbol, the function `documentation' now looks for
a `function-documentation' property of that symbol. If it has a non-nil
value, the documentation is taken from that value. If the value is
** The new function `replace-regexp-in-string' replaces all matches
for a regexp in a string.
++++
** `mouse-position' now runs the abnormal hook
`mouse-position-function'.
++++
** The function string-to-number now returns a float for numbers
that don't fit into a Lisp integer.
++++
** The variable keyword-symbols-constants-flag has been removed.
Keywords are now always considered constants.
** The new function `delete-and-extract-region' deletes text and
returns it.
++++
** The function `clear-this-command-keys' now also clears the vector
returned by function `recent-keys'.
(pop LISTNAME) return first elt of LISTNAME, and remove it
(thus altering the value of LISTNAME).
+---
** New dolist and dotimes macros.
Simple versions of the dolist and dotimes macros of Common Lisp
An alternative interface is called as
(play-sound-file FILE &optional VOLUME DEVICE).
+---
** `multimedia' is a new Finder keyword and Custom group.
+++
** keywordp is a new predicate to test efficiently for an object being
a keyword symbol.
++++
** Changes to garbage collection
*** The function garbage-collect now additionally returns the number
argument, PARTIALLY. If a character is only partially visible, nil is
returned, unless PARTIALLY is non-nil.
++++
** On window systems, `glyph-table' is no longer used.
+++
When you add a new item, please add it without either +++ or ---
so I will know I still need to look at it -- rms.
+---
** The function tty-suppress-bold-inverse-default-colors can be used
to make Emacs avoid displaying text with bold black foreground on TTYs.
of face names. Attributes from inherited faces are merged into the face
like an underlying face would be, with higher priority than underlying faces.
++++
*** Face attributes and X resources
The following X resource names can be used to set face attributes
The primitives `color-gray-p' and `color-supported-p' also work for
any frame type.
++++
** Platform-independent functions to describe display capabilities.
The new functions `display-mouse-p', `display-popup-menus-p',
end of the minibuffer prompt, if the minibuffer is current.
Otherwise, it returns zero.
++++
** New `field' abstraction in buffers.
There is now code to support an abstraction called `fields' in emacs
properties of strings in the mode line. See `bindings.el' for an
example.
++++
*** If a mode line element has the form `(:eval FORM)', FORM is
evaluated and the result is used as mode line element.
HCoop / bpt / emacs.git / commitdiff