@comment %**end of header
-@set edition-number 3.04
+@set edition-number 3.05
@set update-date 5 November 2006
@ignore
Customization buffer.
The @code{:options} keyword specifies a suggested list of values for
-the variable. Currently, you can use @code{:options} only for a hook.
+the variable. Usually, @code{:options} applies to a hook.
The list is only a suggestion; it is not exclusive; a person who sets
the variable may set it to other values; the list shown following the
@code{:options} keyword is intended to offer convenient choices to a
command in which group the variable is located. This tells where to
find it.
+The @code{defcustom} function recognizes more than a dozen keywords.
For more information, see @ref{Customization, , Writing Customization
Definitions, elisp, The GNU Emacs Lisp Reference Manual}.
@noindent
(The @code{text-mode-hook-identify} function tells
@code{toggle-text-mode-auto-fill} which buffers are in Text mode.
-It comes on automatically.
-)
+It comes on automatically.)
The @code{custom-set-variables} function works somewhat differently
than a @code{setq}. While I have never learned the differences, I
@findex defsubst
@findex defconst
-Incidentally, @code{defsubst} defines an inline function. The syntax
-is just like that of @code{defun}. @code{defconst} defines a symbol
-as a constant. The intent is that neither programs nor users should
-ever change a value set by @code{defconst}. (You can change it; the
-value set is a variable; but please do not.)
+Incidentally, to be more complete concerning defines: @code{defsubst}
+defines an inline function. The syntax is just like that of
+@code{defun}. @code{defconst} defines a symbol as a constant. The
+intent is that neither programs nor users should ever change a value
+set by @code{defconst}. (You can change it; the value set is a
+variable; but please do not.)
@node Beginning a .emacs File, Text and Auto-fill, defcustom, Emacs Initialization
@section Beginning a @file{.emacs} File
@noindent
This describes the usual conventions for comments in Emacs Lisp.
Everything on a line that follows a semicolon is a comment. Two,
-three, and four semicolons are used as section and subsection
-markers. (@xref{Comments, ,, elisp, The GNU Emacs Lisp Reference
-Manual}, for more about comments.)
+three, and four semicolons are used as subsection and section markers.
+(@xref{Comments, ,, elisp, The GNU Emacs Lisp Reference Manual}, for
+more about comments.)
@smallexample
@group
; The next two lines put Emacs into Text mode
; and Auto Fill mode, and are for writers who
; want to start writing prose rather than code.
-
(setq default-major-mode 'text-mode)
(add-hook 'text-mode-hook 'turn-on-auto-fill)
@end group
; To enter mail mode, type `C-x m'
; To enter RMAIL (for reading mail),
; type `M-x rmail'
-
(setq mail-aliases t)
@end group
@end smallexample
Files'' in @cite{The GNU Emacs Manual}.
@end iftex
+@need 1700
@node Keybindings, Keymaps, Indent Tabs Mode, Emacs Initialization
@section Some Keybindings
The command is @code{global-set-key}. It is followed by the
keybinding. In a @file{.emacs} file, the keybinding is written as
shown: @code{\C-c} stands for `control-c', which means `press the
-control key and the @kbd{c} key at the same time'. The @code{w} means
-`press the @kbd{w} key'. The keybinding is surrounded by double
-quotation marks. In documentation, you would write this as @kbd{C-c
-w}. (If you were binding a @key{META} key, such as @kbd{M-c}, rather
-than a @key{CTRL} key, you would write @code{\M-c}. @xref{Init
-Rebinding, , Rebinding Keys in Your Init File, emacs, The GNU Emacs
-Manual}, for details.)
+control key and the @key{c} key at the same time'. The @code{w} means
+`press the @key{w} key'. The keybinding is surrounded by double
+quotation marks. In documentation, you would write this as
+@w{@kbd{C-c w}}. (If you were binding a @key{META} key, such as
+@kbd{M-c}, rather than a @key{CTRL} key, you would write
+@w{@code{\M-c}} in your @file{.emacs} file. @xref{Init Rebinding, ,
+Rebinding Keys in Your Init File, emacs, The GNU Emacs Manual}, for
+details.)
The command invoked by the keys is @code{compare-windows}. Note that
@code{compare-windows} is preceded by a single quote; otherwise, Emacs
@end smallexample
@noindent
-(@code{html-helper-mode} is an alternative to @code{html-mode}, which
-is a standard part of the distribution).
+(@code{html-helper-mode} is an older alternative to @code{html-mode},
+which is a standard part of the distribution.)
@noindent
This expression autoloads the @code{html-helper-mode} function. It
@smallexample
@group
(cond
- ((string-equal (number-to-string 21) (substring (emacs-version) 10 12))
+ (= 21 emacs-major-version)
;; evaluate version 21 code
( @dots{} ))
- ((string-equal (number-to-string 22) (substring (emacs-version) 10 12))
+ (= 22 emacs-major-version)
;; evaluate version 22 code
( @dots{} )))
@end group
@end smallexample
-For example, in contrast to version 20, version 21 blinks its cursor
-by default. I hate such blinking, as well as some other features in
-version 21, so I placed the following in my @file{.emacs}
+For example, in contrast to version 20, more recent versions blink
+their cursors by default. I hate such blinking, as well as other
+features, so I placed the following in my @file{.emacs}
file@footnote{When I start instances of Emacs that do not load my
@file{.emacs} file or any site file, I also turn off blinking:
@smallexample
@group
-(if (string-equal "21" (substring (emacs-version) 10 12))
- (progn
+(when (or (= 21 emacs-major-version)
+ (= 22 emacs-major-version))
(blink-cursor-mode 0)
;; Insert newline when you press `C-n' (next-line)
;; at the end of the buffer
;; (Use numeric argument to turn on)
(tooltip-mode nil)
;; If tooltips turned on, make tips appear promptly
- (setq tooltip-delay 0.1) ; default is one second
- ))
+ (setq tooltip-delay 0.1) ; default is 0.7 second
+ )
@end group
@end smallexample
-@noindent
-(You will note that instead of typing @code{(number-to-string 21)}, I
-decided to save typing and wrote `21' as a string, @code{"21"}, rather
-than convert it from an integer to a string. In this instance, this
-expression is better than the longer, but more general
-@code{(number-to-string 21)}. However, if you do not know ahead of
-time what type of information will be returned, then the
-@code{number-to-string} function will be needed.)
-
@node X11 Colors, Miscellaneous, Simple Extension, Emacs Initialization
@section X11 Colors
xsetroot -solid Navy -fg white &
@end smallexample
+@need 1700
@node Miscellaneous, Mode Line, X11 Colors, Emacs Initialization
@section Miscellaneous Settings for a @file{.emacs} File
+@need 1250
Here are a few miscellaneous settings:
@sp 1
@noindent
or start GNU Emacs with the command @code{emacs -nbc}.
-@item Ignore case when using `grep'@*
-@samp{-n}@w{ } Prefix each line of output with line number@*
+@need 1250
+@item When using `grep'@*
@samp{-i}@w{ } Ignore case distinctions@*
+@samp{-n}@w{ } Prefix each line of output with line number@*
+@samp{-H}@w{ } Print the filename for each match.@*
@samp{-e}@w{ } Protect patterns beginning with a hyphen character, @samp{-}
@smallexample
-(setq grep-command "grep -n -i -e ")
+(setq grep-command "grep -i -nH -e ")
@end smallexample
@ignore
@smallexample
@group
loadkeys /usr/share/keymaps/i386/qwerty/emacs2.kmap.gz
-
@exdent or
-
install-keymap emacs2
@end group
@end smallexample
@end group
@end smallexample
+@need 1700
@node Mode Line, , Miscellaneous, Emacs Initialization
@section A Modified Mode Line
@vindex default-mode-line-format
@end smallexample
@noindent
-In GNU Emacs version 21, you will create and enter a
-@file{*Backtrace*} buffer that says:
+In a recent GNU Emacs, you will create and enter a @file{*Backtrace*}
+buffer that says:
@noindent
@smallexample
However, suppose you are not quite certain what is going on?
You can read the complete backtrace.
-In this case, you need to run GNU Emacs 22, which automatically starts
-the debugger that puts you in the @file{*Backtrace*} buffer; or else,
-you need to start the debugger manually as described below.
+In this case, you need to run a recent GNU Emacs, which automatically
+starts the debugger that puts you in the @file{*Backtrace*} buffer; or
+else, you need to start the debugger manually as described below.
Read the @file{*Backtrace*} buffer from the bottom up; it tells you
what Emacs did that led to the error. Emacs made an interactive call
@section @code{debug-on-entry}
@findex debug-on-entry
-GNU Emacs 22 starts the debugger automatically when your function has
-an error.
+A recent GNU Emacs starts the debugger automatically when your
+function has an error.
@ignore
GNU Emacs version 20 and before did not; it simply
@need 1500
However, to prepare this function definition for Edebug, you must
first @dfn{instrument} the code using a different command. You can do
-this by positioning your cursor within the definition and typing
+this by positioning your cursor within or just after the definition
+and typing
@smallexample
M-x edebug-defun RET
@ignore
arch-tag: da1a2154-531f-43a8-8e33-fc7faad10acf
@end ignore
-
projects / emacs.git / commitdiff