Commit 82e98df4 authored by Stefan Monnier's avatar Stefan Monnier

* NEWS: Declare unibyte sessions obsolete.

* emacs.c (USAGE1): Remove --(no-)multibyte, --(no-)unibyte.
(main): Use enable-multibyte-characters rather than
default-enable-multibyte-characters.  Output a warning message when
running a unibyte session.
* mule.texi (Enabling Multibyte):
* cmdargs.texi (General Variables): Remove EMACS_UNIBYTE.
(Initial Options): Remove --(no-)multibyte, --(no-)unibyte.
parent 2fc50e12
2009-08-29 Stefan Monnier <monnier@iro.umontreal.ca>
* mule.texi (Enabling Multibyte):
* cmdargs.texi (General Variables): Remove EMACS_UNIBYTE.
(Initial Options): Remove --(no-)multibyte, --(no-)unibyte.
2009-08-20 Glenn Morris <rgm@gnu.org>
* cal-xtra.texi (Non-Gregorian Diary): Mention ``Adar I'' special case.
......
......@@ -333,27 +333,6 @@ Enable the Emacs Lisp debugger for errors in the init file.
@xref{Error Debugging,, Entering the Debugger on an Error, elisp, The
GNU Emacs Lisp Reference Manual}.
@item --unibyte
@opindex --unibyte
@itemx --no-multibyte
@opindex --no-multibyte
@cindex unibyte operation, command-line argument
Do almost everything with single-byte buffers and strings.
All buffers and strings are unibyte unless you (or a Lisp program)
explicitly ask for a multibyte buffer or string. (Note that Emacs
always loads Lisp files in multibyte mode, even if @samp{--unibyte} is
specified; see @ref{Enabling Multibyte}.) Setting the environment
variable @env{EMACS_UNIBYTE} has the same effect
(@pxref{General Variables}).
@item --multibyte
@opindex --multibyte
@itemx --no-unibyte
@opindex --no-unibyte
Inhibit the effect of @env{EMACS_UNIBYTE}, so that Emacs
uses multibyte characters by default, as usual.
@end table
@node Command Example
@appendixsec Command Argument Example
......@@ -479,12 +458,6 @@ variables to be set, but it uses their values if they are set.
@item CDPATH
Used by the @code{cd} command to search for the directory you specify,
when you specify a relative directory name.
@item EMACS_UNIBYTE
@cindex unibyte operation, environment variable
Defining this environment variable with a nonempty value directs Emacs
to do almost everything with single-byte buffers and strings. It is
equivalent to using the @samp{--unibyte} command-line option on each
invocation. @xref{Initial Options}.
@item EMACSDATA
Directory for the architecture-independent files that come with Emacs.
This is used to initialize the Lisp variable @code{data-directory}.
......
......@@ -249,8 +249,8 @@ limitations.
@cindex turn multibyte support on or off
Under very special circumstances, you may want to disable multibyte
character support, either for Emacs as a whole, or for a single
buffer. When multibyte characters are disabled in a buffer, we call
character support, for a specific buffer.
When multibyte characters are disabled in a buffer, we call
that @dfn{unibyte mode}. In unibyte mode, each character in the
buffer has a character code ranging from 0 through 255 (0377 octal); 0
through 127 (0177 octal) represent @acronym{ASCII} characters, and 128
......@@ -268,22 +268,12 @@ Coding}. Unlike @code{find-file-literally}, finding a file as
@samp{raw-text} doesn't disable format conversion, uncompression, or
auto mode selection.
@vindex enable-multibyte-characters
@cindex environment variables, and non-@acronym{ASCII} characters
To turn off multibyte character support by default, start Emacs with
the @samp{--unibyte} option (@pxref{Initial Options}), or set the
environment variable @env{EMACS_UNIBYTE}.
With @samp{--unibyte}, multibyte strings are not created during
initialization from the values of environment variables,
@file{/etc/passwd} entries etc., even if those contain
non-@acronym{ASCII} characters.
@cindex Lisp files, and multibyte operation
@cindex multibyte operation, and Lisp files
@cindex unibyte operation, and Lisp files
@cindex init file, and non-@acronym{ASCII} characters
Emacs normally loads Lisp files as multibyte, regardless of whether
you used @samp{--unibyte}. This includes the Emacs initialization
Emacs normally loads Lisp files as multibyte.
This includes the Emacs initialization
file, @file{.emacs}, and the initialization files of Emacs packages
such as Gnus. However, you can specify unibyte loading for a
particular Lisp file, by putting @w{@samp{-*-unibyte: t;-*-}} in a
......
2009-08-29 Stefan Monnier <monnier@iro.umontreal.ca>
* NEWS: Declare unibyte sessions obsolete.
2009-08-28 Michael Albinus <michael.albinus@gmx.de>
* NEWS: Mention Tramp connection method "rsyncc" and variable
......
......@@ -34,6 +34,12 @@ This might not work on all platforms.
* Changes in Emacs 23.2
** Unibyte sessions are declared obsolete.
I.e. the use of the environment variable EMACS_UNIBYTE, or command line
arguments --unibyte, --multibyte, --no-multibyte, and --no-unibyte
is deprecated. Similarly for custom-izing enable-multibyte-characters, or
setting default-enable-multibyte-characters.
** The default value of `trash-directory' has changed to nil, which
means that `move-file-to-trash' trashes files according to
freedesktop.org specifications, the same method used by the Gnome,
......
......@@ -216,14 +216,11 @@ X frame."
(defun standard-display-european (arg)
"Semi-obsolete way to toggle display of ISO 8859 European characters.
This function is semi-obsolete; if you want to do your editing with
unibyte characters, it is better to `set-language-environment' coupled
with either the `--unibyte' option or the EMACS_UNIBYTE environment
variable, or else customize `enable-multibyte-characters'.
This function is semi-obsolete; you probably don't need it, or else you
probably should use `set-language-environment' or `set-locale-environment'.
With prefix argument, this command enables European character display
if ARG is positive, disables it otherwise. Otherwise, it toggles
European character display.
This function enables European character display if ARG is positive,
disables it if negative. Otherwise, it toggles European character display.
When this mode is enabled, characters in the range of 160 to 255
display not as octal escapes, but as accented characters. Codes 146
......@@ -231,10 +228,9 @@ and 160 display as apostrophe and space, even though they are not the
ASCII codes for apostrophe and space.
Enabling European character display with this command noninteractively
from Lisp code also selects Latin-1 as the language environment, and
selects unibyte mode for all Emacs buffers \(both existing buffers and
those created subsequently). This provides increased compatibility
for users who call this function in `.emacs'."
from Lisp code also selects Latin-1 as the language environment.
This provides increased compatibility for users who call this function
in `.emacs'."
(if (or (<= (prefix-numeric-value arg) 0)
(and (null arg)
......
2009-08-29 Stefan Monnier <monnier@iro.umontreal.ca>
* emacs.c (USAGE1): Remove --(no-)multibyte, --(no-)unibyte.
(main): Use enable-multibyte-characters rather than
default-enable-multibyte-characters. Output a warning message when
running a unibyte session.
2009-08-28 YAMAMOTO Mitsuharu <mituharu@math.s.chiba-u.ac.jp>
* unexmacosx.c (print_load_command_name) [LC_DYLD_INFO]: Add cases
......
......@@ -271,7 +271,6 @@ Initialization options:\n\
--daemon start a server in the background\n\
--debug-init enable Emacs Lisp debugger for init file\n\
--display, -d DISPLAY use X server DISPLAY\n\
--multibyte, --no-unibyte inhibit the effect of EMACS_UNIBYTE\n\
--no-desktop do not load a saved desktop\n\
--no-init-file, -q load neither ~/.emacs nor default.el\n\
--no-shared-memory, -nl do not use shared memory\n\
......@@ -281,7 +280,6 @@ Initialization options:\n\
--quick, -Q equivalent to -q --no-site-file --no-splash\n\
--script FILE run FILE as an Emacs Lisp script\n\
--terminal, -t DEVICE use DEVICE for terminal I/O\n\
--unibyte, --no-multibyte run Emacs in unibyte mode\n\
--user, -u USER load ~USER/.emacs instead of your own\n\
\n%s"
......@@ -1439,8 +1437,8 @@ main (int argc, char **argv)
Lisp_Object old_log_max;
Lisp_Object symbol, tail;
symbol = intern ("default-enable-multibyte-characters");
Fset (symbol, Qnil);
symbol = intern ("enable-multibyte-characters");
Fset_default (symbol, Qnil);
if (initialized)
{
......@@ -1467,6 +1465,7 @@ main (int argc, char **argv)
set_buffer_temp (current);
}
}
message ("Warning: unibyte sessions are obsolete and will disappear");
}
}
......
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