(@pxref{Printing}) and @code{ps-print-buffer} (@pxref{PostScript})
@end ifnottex
can work on MS-DOS by sending the output to one of the printer ports,
-if a Posix-style @code{lpr} program is unavailable. The same Emacs
+if a POSIX-style @code{lpr} program is unavailable. The same Emacs
variables control printing on all systems, but in some cases they have
different default values on MS-DOS.
Instead of the Shell mode, which doesn't work on MS-DOS, you can use
the @kbd{M-x eshell} command. This invokes the Eshell package that
-implements a Posix-like shell entirely in Emacs Lisp.
+implements a POSIX-like shell entirely in Emacs Lisp.
By contrast, Emacs compiled as a native Windows application
@strong{does} support asynchronous subprocesses.
@cindex text and binary files on MS-DOS/MS-Windows
GNU Emacs uses newline characters to separate text lines. This is the
-convention used on GNU, Unix, and other Posix-compliant systems.
+convention used on GNU, Unix, and other POSIX-compliant systems.
@cindex end-of-line conversion on MS-DOS/MS-Windows
By contrast, MS-DOS and MS-Windows normally use carriage-return linefeed,
Printing commands, such as @code{lpr-buffer} (@pxref{Printing}) and
@code{ps-print-buffer} (@pxref{PostScript}) work in MS-DOS and
MS-Windows by sending the output to one of the printer ports, if a
-Posix-style @code{lpr} program is unavailable. The same Emacs
+POSIX-style @code{lpr} program is unavailable. The same Emacs
variables control printing on all systems, but in some cases they have
different default values on MS-DOS and MS-Windows.
@item
If non-@acronym{ASCII} text or internationalization is relevant, the locale that
was current when you started Emacs. On GNU/Linux and Unix systems, or
-if you use a Posix-style shell such as Bash, you can use this shell
+if you use a POSIX-style shell such as Bash, you can use this shell
command to view the relevant values:
@smallexample
which case it's important to know whether the underlying filesystem is
case-insensitive. This function returns @code{t} if file
@var{filename} is on a case-insensitive filesystem. It always returns
-@code{t} on MS-DOS and MS-Windows. On Cygwin and Mac OS X,
+@code{t} on MS-DOS and MS-Windows. On Cygwin and macOS,
filesystems may or may not be case-insensitive, and the function tries
to determine case-sensitivity by a runtime test. If the test is
inconclusive, the function returns @code{t} on Cygwin and @code{nil}
-on Mac OS X.
+on macOS.
Currently this function always returns @code{nil} on platforms other
-than MS-DOS, MS-Windows, Cygwin, and Mac OS X. It does not detect
+than MS-DOS, MS-Windows, Cygwin, and macOS. It does not detect
case-insensitivity of mounted filesystems, such as Samba shares or
NFS-mounted Windows volumes. On remote hosts, it assumes @code{t} for
the @samp{smb} method. For all other connection methods, runtime
The time of last access, as a list of four integers
@code{(@var{sec-high} @var{sec-low} @var{microsec} @var{picosec})}
(@code{file-attribute-access-time}). (This is similar to the value of
-@code{current-time}; see @ref{Time of Day}.) Note that on some
-FAT-based filesystems, only the date of last access is recorded, so
-this time will always hold the midnight of the day of last access.
+@code{current-time}; see @ref{Time of Day}.) The value is truncated
+to that of the filesystem's timestamp resolution; for example, on some
+FAT-based filesystems, only the date of last access is recorded.
@cindex modification time of file
@item
@defvar module-file-suffix
This variable holds the system-dependent value of the file-name
-extension of the module files. Its value is @file{.so} on Posix hosts
+extension of the module files. Its value is @file{.so} on POSIX hosts
and @file{.dll} on MS-Windows.
@end defvar
@item
If a daemon was requested, it calls @code{server-start}.
-(On Posix systems, if a background daemon was requested, it then
+(On POSIX systems, if a background daemon was requested, it then
detaches from the controlling terminal.) @xref{Emacs
Server,,, emacs, The GNU Emacs Manual}.
Berkeley BSD and its variants.
@item cygwin
-Cygwin, a Posix layer on top of MS-Windows.
+Cygwin, a POSIX layer on top of MS-Windows.
@item darwin
Darwin (macOS).
If it is @code{t}, the conversion uses Universal Time. If it is
@code{wall}, the conversion uses the system wall clock time. If it is
a string, the conversion uses the time zone rule equivalent to setting
-@env{TZ} to that string. If it is an integer @var{offset}, the
-conversion uses a fixed time zone with the given offset and a numeric
-abbreviation on POSIX-compatible platforms and an unspecified abbreviation
-on MS-Windows. If it is a list (@var{offset} @var{abbr}), where
+@env{TZ} to that string. If it is a list (@var{offset} @var{abbr}), where
@var{offset} is an integer number of seconds east of Universal Time
and @var{abbr} is a string, the conversion uses a fixed time zone with
-the given offset and abbreviation.
+the given offset and abbreviation. An integer @var{offset} is treated
+as if it were (@var{offset} @var{abbr}), where @var{abbr} is a numeric
+abbreviation on POSIX-compatible platforms and is unspecified on
+MS-Windows.
@defun current-time-zone &optional time zone
@cindex time zone, current
@item %C
This stands for the century, that is, the year divided by 100,
truncated toward zero.
+The default field width is 2.
@item %d
This stands for the day of month, zero-padded.
@item %D
Emacs is able to send @dfn{notifications} on systems that support the
freedesktop.org Desktop Notifications Specification and on MS-Windows.
-In order to use this functionality on Posix hosts, Emacs must have
+In order to use this functionality on POSIX hosts, Emacs must have
been compiled with D-Bus support, and the @code{notifications} library
must be loaded. @xref{Top, , D-Bus,dbus,D-Bus integration in Emacs}.
The following function is supported when D-Bus support is available:
Emacs process in batch mode, it is sometimes required to make sure any
arbitrary binary data will be read/written verbatim, and/or that no
translation of newlines to or from CR-LF pairs is performed. This
-issue does not exist on Posix hosts, only on MS-Windows and MS-DOS@.
+issue does not exist on POSIX hosts, only on MS-Windows and MS-DOS@.
The following function allows you to control the I/O mode of any
standard stream of the Emacs process.
The value of @var{stream} can be one of @code{stdin}, @code{stdout},
or @code{stderr}. This function flushes any pending output data of
@var{stream} as a side effect, and returns the previous value of I/O
-mode for @var{stream}. On Posix hosts, it always returns a
+mode for @var{stream}. On POSIX hosts, it always returns a
non-@code{nil} value and does nothing except flushing pending output.
@end defun
If you need to use binary I/O in batch mode, e.g., use the functions
described in this section to write out arbitrary binary data or avoid
-conversion of newlines on non-Posix hosts, see @ref{Input Functions,
+conversion of newlines on non-POSIX hosts, see @ref{Input Functions,
set-binary-mode}.
@node Output Variables
automatically. If you have GNUPLOT 3.0 or later and you are using a
Unix or GNU system without X, Calc will configure GNUPLOT to display
graphs using simple character graphics that will work on any
-Posix-compatible terminal.
+POSIX-compatible terminal.
@menu
* Basic Graphics::
@vindex org-clock-idle-time
By customizing the variable @code{org-clock-idle-time} to some integer, such
as 10 or 15, Emacs can alert you when you get back to your computer after
-being idle for that many minutes@footnote{On computers using Mac OS X,
+being idle for that many minutes@footnote{On computers using macOS,
idleness is based on actual user idleness, not just Emacs' idle time. For
X11, you can install a utility program @file{x11idle.c}, available in the
@code{contrib/scripts} directory of the Org git distribution, or install the
projects / emacs.git / commitdiff