--- Begin Message ---
|
Subject: |
23.0.60; nil vs `nil' in manuals |
|
Date: |
Mon, 24 Nov 2008 14:42:53 -0800 |
Most of the time, outside code examples, "nil" is written "`nil'" in
the manuals (I'm looking at Info). Here are some exceptions, which I
think are typos.
Emacs manual:
* Node Watch Expressions
If the variable `gdb-delete-out-of-scope' is non-`nil' (the default
value), Emacs automatically deletes watch expressions which go out
of scope. Sometimes, when re-entering the same function, it may be
useful to set this value to nil so that you don't need to recreate
^^^
the watch expression.
Elisp manual:
* Node `nil and t':
Function: booleanp object
Return non-nil if OBJECT is one of the two canonical boolean
^^^
values: `t' or `nil'.
* Node Predicates for Strings
Function: string-or-null-p object
This function returns `t' if OBJECT is a string or nil, `nil'
^^^
otherwise.
* Node Declaring Functions
Macro: declare-function function file &optional arglist fileonly
Tell the byte compiler to assume that FUNCTION is defined, with
arguments ARGLIST, and that the definition should come from the
file FILE. FILEONLY non-nil means only check that FILE exists,
^^^
not that it actually defines FUNCTION.
* Node Key Sequence
When reading input results in such a "shift-translation",
Emacs sets the variable `this-command-keys-shift-translated'
to a non-nil value.
^^^
* Node Changing Files
Function: file-modes-symbolic-to-number modes &optional base-modes
This subroutine converts a symbolic specification of file mode
bits in MODES into the equivalent numeric value. If the symbolic
specification is based on an existing file, that file's mode bits
are taken from the optional argument BASE-MODES; if that argument
is omitted or nil, it defaults to zero, i.e. no access rights at
^^^
all.
* Node Magic File Names
Function: unhandled-file-name-directory filename
This function returns the name of a directory that is not magic.
It uses the directory part of FILENAME if that is not magic. For
a magic file name, it invokes the file name handler, which
therefore decides what value to return. If FILENAME is not
accessible from a local process, then the file name handler should
indicate it by returning nil.
^^^
* Node Selecting Windows
Macro: with-selected-window window forms...
This macro selects WINDOW, executes FORMS in sequence, then
restores the previously selected window and current buffer. The
ordering of recently selected windows and the buffer list remain
unchanged unless you deliberately change them within FORMS, for
example, by calling `select-window' with argument NORECORD nil or
^^^
omitted there.
* Node Choosing Window
User Option: pop-up-windows
This variable specifies whether `display-buffer' is allowed to
split (*note Splitting Windows::) an existing window . If it is
non-`nil', `display-buffer' tries to the split the largest or
least recently used window on the selected frame. (If the selected
frame is a minibuffer-only frame, it tries to split a window on
another frame instead.) If `pop-up-windows' is nil or the variable
^^^
`pop-up-frames' (see below) is non-`nil', `display-buffer' does
not split any window.
* Node The Mark
Function: handle-shift-selection &optional deactivate
This function checks whether the current command was invoked via
shift translation (*note shift-translation: Key Sequence Input.),
and if so, sets the mark and temporarily activates the region,
unless the region is already temporarily activated in this way.
If the command was invoked without shift translation, or if the
optional argument DEACTIVATE is non-nil, the function deactivates
^^^
the mark. This function is called whenever a command with a `^'
character in its `interactive' spec (*note ^: Interactive Codes.)
is invoked while `shift-select-mode' (*note Shift Selection:
(emacs)Shift Selection.) is non-`nil'.
* Node Shell Arguments
If SEPARATORS is omitted or nil, it defaults to `"\\s-+"', which
^^^
is a regular expression that matches one or more characters with
whitespace syntax (*note Syntax Class Table::).
* Node Transaction Queues
If the argument DELAY-QUESTION is non-nil, delay sending this
^^^
question until the process has finished replying to any previous
questions. This produces more reliable results with some
processes.
* Node Proceessor Run Time
If FORMAT is nil or omitted, it defaults to `"%Y, %D, %H, %M, %z%S"'.
^^^
* Node Documentation Tips
When a documentation string refers to a Lisp symbol, write it as it
would be printed (which usually means in lower case), with
single-quotes around it. For example: `lambda'. There are two
exceptions: write t and nil without single-quotes. (In this
^ ^^^
manual, we use a different convention, with single-quotes for all
symbols.)
Actually, those two should probably be written in double quotes, since
we are referring to the text, not to the symbols, when talking about
"t" and "nil" here.
In GNU Emacs 23.0.60.1 (i386-mingw-nt5.1.2600)
of 2008-11-08 on LENNART-69DE564
Windowing system distributor `Microsoft Corp.', version 5.1.2600
configured using `configure --with-gcc (3.4) --no-opt --cflags -Ic:/g/include
-fno-crossjumping'
--- End Message ---