Commit daaf40c7 authored by Eli Zaretskii's avatar Eli Zaretskii

Rewritten for Emacs 21.

parent d276b0cf
2000-09-02 Eli Zaretskii <eliz@is.elta.co.il>
* anti.texi (Antinews): Rewritten for Emacs 21.
2000-08-30 Dave Love <fx@gnu.org> 2000-08-30 Dave Love <fx@gnu.org>
* doclicense.texi: New file. * doclicense.texi: New file.
......
@c This is part of the Emacs manual. @c This is part of the Emacs manual.
@c Copyright (C) 1997, 1999 Free Software Foundation, Inc. @c Copyright (C) 1997, 1999, 2000 Free Software Foundation, Inc.
@c See file emacs.texi for copying conditions. @c See file emacs.texi for copying conditions.
@node Antinews, MS-DOS, Command Arguments, Top @node Antinews, MS-DOS, Command Arguments, Top
@appendix Emacs 19 Antinews @appendix Emacs 20 Antinews
For those users who live backwards in time, here is information about For those users who live backwards in time, here is information about
downgrading to Emacs version 19. We hope you will enjoy the greater downgrading to Emacs version 20. We hope you will enjoy the greater
simplicity that results from the absence of certain Emacs 20 features. simplicity that results from the absence of many Emacs 21 features.
@itemize @bullet @itemize @bullet
@item @item
The multibyte character and end-of-line conversion support have been The good, old, vintage Emacs 19 display engine is back, eliminating most
eliminated entirely. (Some users consider this a tremendous of the unnecessary complications introduced with Emacs 21. To wit:
improvement.) Character codes are limited to the range 0 through 255
and files imported onto Unix-like systems may have a ^M at the end of
each line to remind you to control MS-DOG type files.
@itemize @minus
@item @item
Fontsets, coding systems and input methods have been eliminated as well. Variable-size characters are not supported anymore: you cannot use fonts
which contain oversized characters, and using italics fonts can totally
screw up your display. Find one font that works and stick to it!
@item @item
The mode line normally displays the string @samp{Emacs}, in case you Likewise, Emacs cannot display images, play sounds, and do anything
forget what editor you are using. except displaying text. Multimedia is for Netrape!
@item @item
Scroll bars always appear on the right-hand side of the window. Toolkit scrollbars are not supported. Emacs bare-bones X scrollbars are
This clearly separates them from the text in the window. so much leaner and meaner. There are no toggle buttons and radio
buttons in menus. @code{LessTif} is not supported either.
@item @item
The @kbd{M-x customize} feature has been replaced with a very simple There are no toolbars and no tooltips; in particular, the @acronym{GUD}
feature, @kbd{M-x edit-options}. This shows you @emph{all} the user mode cannot display variable values in tooltips. Emacs is an editor,
options right from the start, so you don't have to hunt for the ones you not some fancy GUI program!
want. It also provides a few commands, such as @kbd{s} and @kbd{x}, to
set a user option.
@item @item
The @key{DELETE} key does nothing special in Emacs 19 when you use it Colors are not available on character terminals. If you @emph{must}
after selecting a region with the mouse. It does exactly the same thing have colors, but cannot afford running X, use the MS-DOG version of
in that situation as it does at all other times: delete one character Emacs inside a DOS emulator.
backwards.
@item @item
@kbd{C-x C-w} no longer changes the major mode according to the new file The mode line is no longer mouse-sensitive. You will have to remember
name. If you want to change the mode, use @kbd{M-x normal-mode}. all the necessary commands to switch between buffers, toggle read-only
and modified status, switch minor modes on and off, etc.
@item @item
In Transient Mark mode, each window displays highlighting for the region The support for ``wheeled'' mice on XFree86 has been removed. Go away,
as it exists in that window. MS-Windows weenies! Busy-cursor display has gone down the drain, too,
for the same reasons. Meanwhile, the cursor blinking is no longer under
your control.
@item @item
Outline mode doesn't use overlay properties; instead, it hides a line by Some aspects of Emacs appearance, such as the colors of the scroll bar
converting the preceding newline into code 015. Magically, however, if and the menus, can only be controlled via X resources. Users who aren't
you save the file, the 015 character appears in the file as a newline. privy to X arcana, should learn to be happy with the default colors.
@item @item
There is now a clever way you can activate the minibuffer recursively Highlighting of trailing whitespace is not available; you need to move
even if @code{enable-recursive-minibuffers} is @code{nil}. All you have the cursor into the suspect area to find out whether there is slack
to do is @emph{switch windows} to a non-minibuffer window, and then use a whitespace there. Empty lines at the end of the buffer cannot be marked
minibuffer command. You can pile up any number of minibuffer levels in any way, either, since each user should know where the buffer ends
this way, but @kbd{M-x top-level} will get you out of all of them. without any help.
@item @item
We have removed the limit on the length of minibuffer history lists; You cannot control the spacing between text lines on the display; you
they now contain all the minibuffer arguments you have used since the are now entirely at the mercy of the font designer and the window
beginning of the session. manager. Complain to them if your display looks ugly.
@end itemize
@item @item
Dynamic abbrev expansion now handles case conversion in a very simple Emacs 20 has less elaborate support for multi-lingual editing. While
and straightforward way. If you have requested preserving case, it not as radical as Emacs 19 (which doesn't support anything but
always converts the entire expansion to the case pattern of the abbrev single-byte European characters), it goes a long way toward eliminating
that you have typed in. some of the annoying features:
@itemize @minus
@item @item
The @code{compose-mail} command does not exist; @kbd{C-x m} now Translations of the Emacs reference cards to other languages are gone.
runs @code{mail} directly. Every Emacs user should know English better than their national
languages.
@item @item
There is no way to quote a file name with special characters in it. To avoid extra confusion, many language environments have been
What you see is what you get: if the name looks remote, it is remote. eliminated. For example, @samp{Polish} and @samp{Celtic} (Latin-8)
environments are not supported, and you cannot have the Euro characters,
since the Latin-9 environment is gone, too.
@item @item
@kbd{M-x grep-find} has been eliminated, because @code{grep} has never Emacs no longer uses the most preferred coding system if it is suitable
been lost. for saving the buffer. Instead, it always prompts you for a coding
system, so that you get to know its name better.
@ignore
@item @item
Truth in advertising: @kbd{M-x grep} by default uses @code{grep}, the Commands which provide detailed information about character sets and
whole @code{grep}, and nothing but the @code{grep}. If you want it to coding systems, such as @code{list-charset-chars},
use @code{zgrep}, you'll have to edit the search command by hand. @code{describe-character-set}, and the @kbd{C-u C-x =} key-sequence, no
@end ignore longer exist. User feedback suggests that telling too much about
non-@sc{ascii} characters is confusing and unnecessary.
@item @item
Some Dired commands have been rearranged: two-character sequences The terminal coding system cannot be set to something CCL-based, so
have been replaced with quick single-character commands: keyboards which produce @code{KOI8} and DOS/Windows codepage codes
cannot be supported directly. Leim is so much simpler!
@end itemize
@itemize @bullet
@item @item
For @code{dired-mark-executables}, type @kbd{*}. Systems which are deemed unimportant or still in vaporware phase are no
longer supported:
@itemize @minus
@item
Emacs cannot be built on GNU/Linux systems running on IA64 machines,
and you cannot build a 64-bit Emacs for SPARC/Solaris systems which
support 64-bit executables. Thus, Emacs contributes to stability of
these systems by preventing you from corrupting files larger than 128MB.
@item
LynxOS is also not supported.
@end itemize
@item @item
For @code{dired-mark-directories}, type @kbd{/}. The menu bar is no longer @acronym{CUA}-compliant. We think that
uniformity of look-and-feel is boring, and that @acronym{CUA} is not
suitable for Emacs anyway.
@item @item
For @code{dired-mark-symlinks}, type @kbd{@@}. You cannot save the options set via the @samp{Options} menu-bar menu;
instead, you need to set all the options again each time you start a new
session. This will gradually make your acquaintance with the options
better and better, until eventually you will be able to set all the
options without looking at the screen. Unless you start Emacs once and
never stop it, that is.
@item @item
For @code{dired-change-marks}, type @kbd{c}. Emacs no longer pops up a buffer with error messages when an error is
signaled during loading of the user's init file. Gurus who can debug
init files by the seat of their pants will regain their due honor which
they lost with Emacs 21.
@item @item
For @code{dired-unmark-all-files}, type @kbd{C-M-?}. Many commands duly ignore the active region when Transient Mark mode is
in effect. (Transient Mark mode is alien to Emacs mantra in the first
place, its introduction was a grave mistake, and we are planning to
remove it altogether in one of the previous versions; stay tuned.)
@item @item
For @code{dired-unmark-all-marks}, type @kbd{C-M-? @key{RET}}. @kbd{C-down-mouse-3} does nothing special when menu bar is not
@end itemize displayed. Users who don't like the menu bar should be amply punished
by forcing them to use the @code{tmm-menubar} replacement, even if they
do have the mouse.
But if you want to use @code{dired-flag-garbage-files}, @kbd{&}, you'll @item
just have to stop living in the past. The @key{delete} function key produces the same effect as the @key{DEL}
key, on both TTY and windowed displays. Never again will you be
confused by this terrible @emph{dichotomy}!
@item @item
In C mode, you can now specify your preferred style for block comments. The ability to save backup files in special subdirectories has been
If you want to use the style eliminated. This makes finding your backup files much easier.
@example @item
/* Emacs no longer refuses to load Lisp files compiled by incompatible
blah versions of other Emacsen, which may contain invalid byte-code.
blah Instead, Emacs now dumps core when it encounters such byte-code.
*/
@end example
@noindent @item
then you should set the variable @code{c-block-comments-indent-p} to You cannot delete all frames but the current one with @kbd{C-x 5 1}.
@code{t}. Delete them one by one instead. If you have many frames, it's tough on
you.
@item @item
To customize faces used by Font Lock mode, use the variable CC Mode is now much harder to customize, due to subtle aspects of local
@code{font-lock-face-attributes}. See its documentation string for and global bindings. In particular, if you change the indentation style
details. as appropriate for Java, the indentation in C and C@t{++} buffers is
messed up, and vice versa.
@item @item
For efficiency, Font Lock mode now uses by default the minimum supported Isearch no longer highlights matches besides the current one, and
level of decoration for the selected major mode. @kbd{mouse-2} in the echo area during incremental search now signals an
error, since nobody in their right mind will use a mouse while
searching.
@item @item
If you kill a buffer, any registers holding saved positions in that You cannot specify a port number with @code{ange-ftp}. Instead, you
buffer are changed to point into limbo. need to rely on undocumented features (@emph{use the source, Luke!}) to
sneak the port in. Time stamps for remote files are not supported, and
Windows-style ftp clients which output the @samp{^M} character at the
end of each line wreak havoc with @code{ange-ftp}, making your life more
interesting.
@item @item
The function @code{set-frame-font} has been renamed to Many advanced display features, such as highlighting of mouse-sensitive
@code{set-default-font}. text regions and popping up help strings for menu items, don't work in
the MS-DOS version. Ispell and Eshell don't work on MS-DOS, either.
MS-DOG users should be aware of their inferiority at all times!
@item @item
The variable @code{tex-main-file} doesn't exist. Of course, you can There's no woman.el package, so Emacs users on non-Posix systems should
create the variable by setting it, but that won't do anything special. learn to read Troff sources of manual pages. This is a Good Thing,
since Troff is such a nice, intuitive language.
@item @item
The @code{scroll-preserve-screen-position} variable has been eliminated; recentf.el is not available, so you will have to memorize your
and so has the feature that it controls. frequently edited files by heart, or use desktop.el.
@item @item
We have eliminated the functions @code{add-untranslated-filesystem} and Many additional packages that were unnecessarily complicating your lives
@code{remove-untranslated-filesystem}, and replaced them with a simpler are no longer with us. You cannot browse C@t{++} classes with Ebrowse,
function, @code{using-unix-filesystems}. edit Delphi sources, access @acronym{SQL} data bases, edit PostScript
files and context diffs, access LDAP and other directory servers, edit
TODO files conveniently. Emacs doesn't need all that crud.
@item @item
To keep up with decreasing computer memory capacity, many other To keep up with decreasing computer memory capacity and disk space, many
functions and files have been eliminated in Emacs 19. There's no need other functions and files have been eliminated in Emacs 20. There's no
to mention them all here. If you try to use one of them, you'll get an need to mention them all here. If you try to use one of them, you'll
error message to tell you that it is undefined or unbound. get an error message to tell you that it is undefined or unbound.
@end itemize @end itemize
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