[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Emacs-diffs] master 084cfae: Merge from origin/emacs-26
|
From: |
Glenn Morris |
|
Subject: |
[Emacs-diffs] master 084cfae: Merge from origin/emacs-26 |
|
Date: |
Tue, 30 Jan 2018 10:55:33 -0500 (EST) |
branch: master
commit 084cfae0e624469ebca78b155ffe4e2c20f2b205
Merge: 84055bd bc8dc37
Author: Glenn Morris <address@hidden>
Commit: Glenn Morris <address@hidden>
Merge from origin/emacs-26
bc8dc37 (origin/emacs-26) Minor copyedits in "Distribution" chapter o...
1c7a936 Minor copyedits in "Entering" chapter of Emacs manual.
1d4498b Minor wording change in the Emacs manual
2bf49e7 Fix a typo in the Emacs manual
f3546a2 Improve the "Basic" chapter of the Emacs manual
691431e Resurrect lost text in lispref
956807b * lisp/emacs-lisp/rx.el (rx): Fix the definition of 'blank'.
7d90d2e Proofread os.texi and files.texi
490c736 Minor improvements in the "International" chapter of Emacs ma...
79252d3 Minor improvement in "Text" chapter of Emacs manual
---
doc/emacs/basic.texi | 16 +++++++++------
doc/emacs/custom.texi | 2 +-
doc/emacs/emacs.texi | 4 ++--
doc/emacs/entering.texi | 9 +++++----
doc/emacs/msdos-xtra.texi | 4 ++--
doc/emacs/msdos.texi | 4 ++--
doc/emacs/mule.texi | 51 ++++++++++++++++++++++++-----------------------
doc/emacs/screen.texi | 2 +-
doc/emacs/text.texi | 2 +-
doc/emacs/trouble.texi | 2 +-
doc/lispref/files.texi | 11 +++++-----
doc/lispref/loading.texi | 2 +-
doc/lispref/os.texi | 17 ++++++++--------
doc/lispref/streams.texi | 6 +++---
doc/misc/calc.texi | 2 +-
doc/misc/org.texi | 2 +-
lisp/emacs-lisp/rx.el | 11 ++++++----
17 files changed, 79 insertions(+), 68 deletions(-)
diff --git a/doc/emacs/basic.texi b/doc/emacs/basic.texi
index b59ccf6..edb3d08 100644
--- a/doc/emacs/basic.texi
+++ b/doc/emacs/basic.texi
@@ -131,12 +131,6 @@ Unicode), or a number with a specified radix, e.g.,
@code{#o23072}
Manual}. The command then inserts the corresponding character into
the buffer.
- In some contexts, if you type a quotation using grave accent and
-apostrophe @t{`like this'}, it is converted to a form @t{‘like this’}
-using single quotation marks. Similarly, typing a quotation @t{``like
-this''} using double grave accent and apostrophe converts it to a form
address@hidden this”} using double quotation marks. @xref{Quotation Marks}.
-
For example, the following all insert the same character:
@example
@@ -151,6 +145,13 @@ this''} using double grave accent and apostrophe converts
it to a form
A numeric argument to @kbd{C-q} or @kbd{C-x 8 ...} specifies
how many copies of the character to insert (@pxref{Arguments}).
+ In addition, in some contexts, if you type a quotation using grave
+accent and apostrophe @t{`like this'}, it is converted to a form
address@hidden this’} using single quotation marks, even without @kbd{C-x 8}
+commands. Similarly, typing a quotation @t{``like this''} using
+double grave accent and apostrophe converts it to a form @t{“like
+this”} using double quotation marks. @xref{Quotation Marks}.
+
@node Moving Point
@section Changing the Location of Point
@@ -711,6 +712,9 @@ where the two extra numbers give the smallest and largest
character
position that point is allowed to assume. The characters between
those two positions are the accessible ones. @xref{Narrowing}.
+ Related, but different feature is @code{display-line-numbers-mode}
+(@pxref{Display Custom}).
+
@node Arguments
@section Numeric Arguments
@cindex numeric arguments
diff --git a/doc/emacs/custom.texi b/doc/emacs/custom.texi
index c58cc7e..5b2ab82 100644
--- a/doc/emacs/custom.texi
+++ b/doc/emacs/custom.texi
@@ -127,7 +127,7 @@ brings up the customization buffer for that group.
@kindex S-TAB @r{(customization buffer)}
@findex widget-forward
@findex widget-backward
- In the customizable buffer, you can type @key{TAB}
+ In the customization buffer, you can type @key{TAB}
(@code{widget-forward}) to move forward to the next button or editable
field. @address@hidden (@code{widget-backward}) moves back to the
previous button or editable field.
diff --git a/doc/emacs/emacs.texi b/doc/emacs/emacs.texi
index 0981708..5904740 100644
--- a/doc/emacs/emacs.texi
+++ b/doc/emacs/emacs.texi
@@ -1345,7 +1345,7 @@ for documentation. @xref{GNU Free Documentation
License}.}.
@xref{Copying}.
One way to get a copy of GNU Emacs is from someone else who has it.
-You need not ask for our permission to do so, or tell any one else;
+You need not ask for our permission to do so, or tell anyone else;
just copy it. If you have access to the Internet, you can get the
latest distribution version of GNU Emacs by anonymous FTP; see
@url{https://www.gnu.org/software/emacs} on our website for more
@@ -1361,7 +1361,7 @@ when you get it, not just free for the manufacturer.
If you find GNU Emacs useful, please @strong{send a donation} to the
Free Software Foundation to support our work. Donations to the Free
-Software Foundation are tax deductible in the address@hidden If you use GNU
Emacs
+Software Foundation are tax-deductible in the address@hidden If you use GNU
Emacs
at your workplace, please suggest that the company make a donation.
To donate, see @url{https://my.fsf.org/donate/}.
For other ways in which you can help, see
diff --git a/doc/emacs/entering.texi b/doc/emacs/entering.texi
index de0d781..2ff258f 100644
--- a/doc/emacs/entering.texi
+++ b/doc/emacs/entering.texi
@@ -18,10 +18,11 @@
@cindex starting Emacs
The usual way to invoke Emacs is with the shell command
address@hidden From a terminal window running in the X Window
-System, you can run Emacs in the background with @command{emacs &};
-this way, Emacs won't tie up the terminal window, so you can use it to
-run other shell commands.
address@hidden From a terminal window running a Unix shell in the X
+Window System, you can run Emacs in the background with @command{emacs
+&}; this way, Emacs won't tie up the terminal window, so you can use
+it to run other shell commands. (For comparable methods of starting
+Emacs on MS-Windows, see @ref{Windows Startup}.)
@cindex startup screen
When Emacs starts up, the initial frame displays a special buffer
diff --git a/doc/emacs/msdos-xtra.texi b/doc/emacs/msdos-xtra.texi
index 43dc265..541e29a 100644
--- a/doc/emacs/msdos-xtra.texi
+++ b/doc/emacs/msdos-xtra.texi
@@ -380,7 +380,7 @@ using an actual directory named @file{/dev} on any disk.
(@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.
@@ -567,7 +567,7 @@ asynchronous invocation on other platforms
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.
diff --git a/doc/emacs/msdos.texi b/doc/emacs/msdos.texi
index 25c3a56..9c47f47 100644
--- a/doc/emacs/msdos.texi
+++ b/doc/emacs/msdos.texi
@@ -129,7 +129,7 @@ window. @xref{emacsclient Options}.
@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,
@@ -770,7 +770,7 @@ more details.
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.
diff --git a/doc/emacs/mule.texi b/doc/emacs/mule.texi
index fd25604..4989982 100644
--- a/doc/emacs/mule.texi
+++ b/doc/emacs/mule.texi
@@ -1207,13 +1207,13 @@ using the internal Emacs representation.
@cindex file-name encoding, MS-Windows
@vindex w32-unicode-filenames
When Emacs runs on MS-Windows versions that are descendants of the
-NT family (Windows 2000, XP, Vista, Windows 7, and Windows 8), the
-value of @code{file-name-coding-system} is largely ignored, as Emacs
-by default uses APIs that allow passing Unicode file names directly.
-By contrast, on Windows 9X, file names are encoded using
address@hidden, which should be set to the codepage
-(@pxref{Coding Systems, codepage}) pertinent for the current system
-locale. The value of the variable @code{w32-unicode-filenames}
+NT family (Windows 2000, XP, Vista, Windows 7, and all the later
+versions), the value of @code{file-name-coding-system} is largely
+ignored, as Emacs by default uses APIs that allow passing Unicode file
+names directly. By contrast, on Windows 9X, file names are encoded
+using @code{file-name-coding-system}, which should be set to the
+codepage (@pxref{Coding Systems, codepage}) pertinent for the current
+system locale. The value of the variable @code{w32-unicode-filenames}
controls whether Emacs uses the Unicode APIs when it calls OS
functions that accept file names. This variable is set by the startup
code to @code{nil} on Windows 9X, and to @code{t} on newer versions of
@@ -1570,9 +1570,9 @@ used. Some examples are:
unpleasant results for characters for which they are used, and you may
wish to instruct Emacs to completely ignore them while searching for a
suitable font required to display a character. You can do that by
-adding the offending fonts to the value of @code{face-ignored-fonts}
-variable, which is a list. Here's an example to put in your
address@hidden/.emacs}:
+adding the offending fonts to the value of the variable
address@hidden, which is a list. Here's an example to put
+in your @file{~/.emacs}:
@example
(add-to-list 'face-ignored-fonts "Some Bad Font")
@@ -1673,10 +1673,10 @@ should use the command @kbd{M-x
set-keyboard-coding-system} or
customize the variable @code{keyboard-coding-system} to specify which
coding system your keyboard uses (@pxref{Terminal Coding}). Enabling
this feature will probably require you to use @key{ESC} to type Meta
-characters; however, on a console terminal or in @code{xterm}, you can
-arrange for Meta to be converted to @key{ESC} and still be able to
-type 8-bit characters present directly on the keyboard or using
address@hidden or @key{AltGr} keys. @xref{User Input}.
+characters; however, on a console terminal or a terminal emulator such
+as @code{xterm}, you can arrange for Meta to be converted to @key{ESC}
+and still be able to type 8-bit characters present directly on the
+keyboard or using @key{Compose} or @key{AltGr} keys. @xref{User Input}.
@cindex @code{iso-transl} library
@cindex compose character
@@ -1777,13 +1777,13 @@ for editing bidirectional text.
@dfn{logical} (or @dfn{reading}) order: the buffer or string position
of the first character you read precedes that of the next character.
Reordering of bidirectional text into the @dfn{visual} order happens
-at display time. As result, character positions no longer increase
+at display time. As a result, character positions no longer increase
monotonically with their positions on display. Emacs implements the
Unicode Bidirectional Algorithm (UBA) described in the Unicode
Standard Annex #9, for reordering of bidirectional text for display.
It deviates from the UBA only in how continuation lines are displayed
when text direction is opposite to the base paragraph direction,
-e.g. when a long line of English text appears in a right-to-left
+e.g., when a long line of English text appears in a right-to-left
paragraph.
@vindex bidi-display-reordering
@@ -1835,12 +1835,13 @@ thin blank characters; on text terminals they display
as blanks.
Because characters are reordered for display, Emacs commands that
operate in the logical order or on stretches of buffer positions may
-produce unusual effects. For example, @kbd{C-f} and @kbd{C-b}
-commands move point in the logical order, so the cursor will sometimes
-jump when point traverses reordered bidirectional text. Similarly, a
-highlighted region covering a contiguous range of character positions
-may look discontinuous if the region spans reordered text. This is
-normal and similar to the behavior of other programs that support
-bidirectional text. If you set @code{visual-order-cursor-movement} to
-a address@hidden value, cursor motion by the arrow keys follows the
-visual order on screen (@pxref{Moving Point, visual-order movement}).
+produce unusual effects. For example, the commands @kbd{C-f} and
address@hidden move point in the logical order, so the cursor will
+sometimes jump when point traverses reordered bidirectional text.
+Similarly, a highlighted region covering a contiguous range of
+character positions may look discontinuous if the region spans
+reordered text. This is normal and similar to the behavior of other
+programs that support bidirectional text. If you set
address@hidden to a address@hidden value, cursor
+motion by the arrow keys follows the visual order on screen
+(@pxref{Moving Point, visual-order movement}).
diff --git a/doc/emacs/screen.texi b/doc/emacs/screen.texi
index d00b74f..fb4eff9 100644
--- a/doc/emacs/screen.texi
+++ b/doc/emacs/screen.texi
@@ -18,7 +18,7 @@ frames if you wish (@pxref{Frames}).
Each frame consists of several distinct regions. At the top of the
frame is a @dfn{menu bar}, which allows you to access commands via a
series of menus. On a graphical display, directly below the menu bar
-is a @dfn{tool bar}, a row of icons that perform editing commands if
+is a @dfn{tool bar}, a row of icons that perform editing commands when
you click on them. At the very bottom of the frame is an @dfn{echo
area}, where informative messages are displayed and where you enter
information when Emacs asks for it.
diff --git a/doc/emacs/text.texi b/doc/emacs/text.texi
index 7e49a46..b9d3b7b 100644
--- a/doc/emacs/text.texi
+++ b/doc/emacs/text.texi
@@ -101,7 +101,7 @@ Kill up to the end of a word (@code{kill-word}).
@item address@hidden
Kill back to the beginning of a word (@code{backward-kill-word}).
@item M-@@
-Mark the end of the next word (@code{mark-word}).
+Set mark at the end of the next word (@code{mark-word}).
@item M-t
Transpose two words or drag a word across others
(@code{transpose-words}).
diff --git a/doc/emacs/trouble.texi b/doc/emacs/trouble.texi
index 05114c3..2edeb05 100644
--- a/doc/emacs/trouble.texi
+++ b/doc/emacs/trouble.texi
@@ -806,7 +806,7 @@ stimulates the bug.
@item
If address@hidden 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
diff --git a/doc/lispref/files.texi b/doc/lispref/files.texi
index 021a62a..6a0312b 100644
--- a/doc/lispref/files.texi
+++ b/doc/lispref/files.texi
@@ -1170,14 +1170,14 @@ Sometimes file names or their parts need to be compared
as strings, in
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
address@hidden on MS-DOS and MS-Windows. On Cygwin and Mac OS X,
address@hidden 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
@@ -1297,9 +1297,10 @@ The file's @acronym{GID}, likewise
(@code{file-attribute-group-id}).
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
address@hidden; see @ref{Time of Day}.) Note that on some
address@hidden; 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, so
-this time will always hold the midnight of the day of last access.
+this time will always hold the midnight of the day of the last access.
@cindex modification time of file
@item
diff --git a/doc/lispref/loading.texi b/doc/lispref/loading.texi
index 0165d11..82c133d 100644
--- a/doc/lispref/loading.texi
+++ b/doc/lispref/loading.texi
@@ -1151,7 +1151,7 @@ extension, a.k.a.@: ``suffix''. This suffix is
platform-dependent.
@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
diff --git a/doc/lispref/os.texi b/doc/lispref/os.texi
index 1a4e2db..9352a92 100644
--- a/doc/lispref/os.texi
+++ b/doc/lispref/os.texi
@@ -257,7 +257,7 @@ options were specified.
@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}.
@@ -888,7 +888,7 @@ IBM's AIX.
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).
@@ -1325,13 +1325,13 @@ omitted or @code{nil}, the conversion uses Emacs's
default time zone.
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
address@hidden 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
address@hidden 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
@@ -1488,6 +1488,7 @@ This is a synonym for @samp{%x %X}.
@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
@@ -2398,7 +2399,7 @@ Emacs is restarted by the session manager.
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:
diff --git a/doc/lispref/streams.texi b/doc/lispref/streams.texi
index a25a5bf..bd7dc2d 100644
--- a/doc/lispref/streams.texi
+++ b/doc/lispref/streams.texi
@@ -344,7 +344,7 @@ When reading or writing from the standard input/output
streams of the
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 address@hidden
+issue does not exist on POSIX hosts, only on MS-Windows and address@hidden
The following function allows you to control the I/O mode of any
standard stream of the Emacs process.
@@ -354,7 +354,7 @@ address@hidden, switch to binary mode, otherwise switch to
text mode.
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
address@hidden value and does nothing except flushing pending output.
@end defun
@@ -707,7 +707,7 @@ indent and fill the object to make it more readable for
humans.
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
diff --git a/doc/misc/calc.texi b/doc/misc/calc.texi
index 1144f28..40b16b0 100644
--- a/doc/misc/calc.texi
+++ b/doc/misc/calc.texi
@@ -29128,7 +29128,7 @@ the X window system or MS-Windows, Calc will configure
GNUPLOT for you
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::
diff --git a/doc/misc/org.texi b/doc/misc/org.texi
index 762dfaf..aa3b029 100644
--- a/doc/misc/org.texi
+++ b/doc/misc/org.texi
@@ -6752,7 +6752,7 @@ applying it to another one.
@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 address@hidden computers using Mac OS X,
+being idle for that many address@hidden 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
diff --git a/lisp/emacs-lisp/rx.el b/lisp/emacs-lisp/rx.el
index 37aa25b..c4f6d4f 100644
--- a/lisp/emacs-lisp/rx.el
+++ b/lisp/emacs-lisp/rx.el
@@ -57,7 +57,6 @@
;; (rx (and line-start (0+ (in "a-z"))))
;;
;; "\n[^ \t]"
-;; (rx (and "\n" (not blank))), or
;; (rx (and "\n" (not (any " \t"))))
;;
;; "\\*\\*\\* EOOH \\*\\*\\*\n"
@@ -74,9 +73,9 @@
;; "^content-transfer-encoding:\\(\n?[\t ]\\)*quoted-printable\\(\n?[\t ]\\)*"
;; (rx (and line-start
;; "content-transfer-encoding:"
-;; (+ (? ?\n)) blank
+;; (+ (? ?\n)) (any " \t")
;; "quoted-printable"
-;; (+ (? ?\n)) blank))
+;; (+ (? ?\n)) (any " \t"))
;;
;; (concat "^\\(?:" something-else "\\)")
;; (rx (and line-start (eval something-else))), statically or
@@ -962,7 +961,11 @@ CHAR
matches 0 through 9, a through f and A through F.
`blank'
- matches space and tab only.
+ matches horizontal whitespace, as defined by Annex C of the
+ Unicode Technical Standard #18. In particular, it matches
+ spaces, tabs, and other characters whose Unicode
+ `general-category' property indicates they are spacing
+ separators.
`graphic', `graph'
matches graphic characters--everything except whitespace, ASCII