Merge from origin/emacs-26

edcd6b7 Small documentation correction.
168a8c2 * src/coding.c (Fcheck_coding_systems_region): Doc fix.  (Bug...
3287a7c Fix Bug#33364
acee0a8 ; Cosmetic changes in etc/NEWS
a6ef167 * test/README: Explain $REMOTE_TEMPORARY_FILE_DIRECTORY.

# Conflicts:
#	etc/NEWS

doc/lispref/windows.texi

@@ -4915,7 +4915,8 @@ fashion.
 @defopt scroll-up-aggressively
 Likewise, for scrolling up.  The value, @var{f}, specifies how far
 point should be placed from the bottom of the window; thus, as with
-@code{scroll-up-aggressively}, a larger value scrolls more aggressively.
+@code{scroll-down-aggressively}, a larger value scrolls more
+aggressively.
 @end defopt
 
 @defopt scroll-step

etc/NEWS.26

@@ -3,8 +3,8 @@ GNU Emacs NEWS -- history of user-visible changes.
 Copyright (C) 2016-2018 Free Software Foundation, Inc.
 See the end of the file for license conditions.
 
-Please send Emacs bug reports to bug-gnu-emacs@gnu.org.
-If possible, use M-x report-emacs-bug.
+Please send Emacs bug reports to 'bug-gnu-emacs@gnu.org'.
+If possible, use 'M-x report-emacs-bug'.
 
 This file is about changes in Emacs version 26.
 
@@ -13,7 +13,7 @@ See files NEWS.25, NEWS.24, ..., NEWS.18, and NEWS.1-17 for changes
 in older Emacs versions.
 
 You can narrow news to a specific version by calling 'view-emacs-news'
-with a prefix argument or by typing C-u C-h C-n.
+with a prefix argument or by typing 'C-u C-h C-n'.
 
 
 * Installation Changes in Emacs 26.2
@@ -65,12 +65,17 @@ often cause crashes.  Set it to nil if you really need those fonts.
 
 ---
 *** Mailutils movemail will now be used if found at runtime.
-The default value of mail-source-movemail-program is now "movemail".
+The default value of 'mail-source-movemail-program' is now "movemail".
 This ensures that the movemail program from GNU Mailutils will be used
 if found in 'exec-path', even if it was not found at build time.  To
-use a different program, customize mail-source-movemail-program to the
+use a different program, customize 'mail-source-movemail-program' to the
 absolute file name of the desired executable.
 
+** Shadowfile
+
+---
+*** shadowfile.el has been rewritten to support Tramp file names.
+
 ** Shell mode
 
 ---
@@ -103,16 +108,13 @@ whether the version shown on the mode line is that of the visited file
 or of the repository working copy.
 
 ---
-**** Display of Mercurial revisions in the mode-line has changed.
+**** Display of Mercurial revisions in the mode line has changed.
 Previously, the mode line displayed the local number (1, 2, 3, ...) of
 the revision.  Starting with Emacs 26.1, the default has changed, and
 it now shows the global revision number, in the form of its changeset
 hash value.  To get back the previous behavior, customize the new
 option 'vc-hg-symbolic-revision-styles' to the value '("{rev}")'.
 
----
-** shadowfile.el has been rewritten to support Tramp file names.
-
 
 * New Modes and Packages in Emacs 26.2
 
@@ -175,11 +177,11 @@ version 2.6.6 or later.
 
 ** The new option 'configure --with-mailutils' causes Emacs to rely on
 GNU Mailutils to retrieve email.  It is recommended, and is the
-default if GNU Mailutils is installed.  When --with-mailutils is not
+default if GNU Mailutils is installed.  When '--with-mailutils' is not
 in effect, the Emacs build procedure by default continues to build and
 install a limited 'movemail' substitute that retrieves POP3 email only
 via insecure channels.  To avoid this problem, use either
---with-mailutils or --without-pop when configuring; --without-pop
+'--with-mailutils' or '--without-pop' when configuring; '--without-pop'
 is the default on platforms other than native MS-Windows.
 
 ** The new option 'configure --enable-gcc-warnings=warn-only' causes

lisp/net/tramp.el

@@ -2882,7 +2882,9 @@ User is always nil."
    "Return a (user host) tuple allowed to access.
 User is always nil."
    (tramp-parse-group
-    (concat "^[ \t]*Host[ \t]+" "\\(" tramp-host-regexp "\\)") 1 ","))
+    (concat "\\(?:^[ \t]*Host\\)" "\\|" "\\(?:^.+\\)"
+	    "\\|" "\\(" tramp-host-regexp "\\)")
+    1 "[ \t]+"))
 
 ;; Generic function.
 (defun tramp-parse-shostkeys-sknownhosts (dirname regexp)

src/coding.c

@@ -9226,22 +9226,22 @@ to the string and treated as in `substring'.  */)
 
 DEFUN ("check-coding-systems-region", Fcheck_coding_systems_region,
        Scheck_coding_systems_region, 3, 3, 0,
-       doc: /* Check if the region is encodable by coding systems.
+       doc: /* Check if text between START and END is encodable by CODING-SYSTEM-LIST.
 
 START and END are buffer positions specifying the region.
 CODING-SYSTEM-LIST is a list of coding systems to check.
 
-The value is an alist ((CODING-SYSTEM POS0 POS1 ...) ...), where
-CODING-SYSTEM is a member of CODING-SYSTEM-LIST and can't encode the
-whole region, POS0, POS1, ... are buffer positions where non-encodable
-characters are found.
-
 If all coding systems in CODING-SYSTEM-LIST can encode the region, the
-value is nil.
+function returns nil.
+
+If some of the coding systems cannot encode the whole region, value is
+an alist, each element of which has the form (CODING-SYSTEM POS1 POS2 ...),
+which means that CODING-SYSTEM cannot encode the text at buffer positions
+POS1, POS2, ...
 
 START may be a string.  In that case, check if the string is
-encodable, and the value contains indices to the string instead of
-buffer positions.  END is ignored.
+encodable, and the value contains character indices into the string
+instead of buffer positions.  END is ignored in this case.
 
 If the current buffer (or START if it is a string) is unibyte, the value
 is nil.  */)

test/README

@@ -79,6 +79,15 @@ debugging.  To do that, use
 
     make TEST_INTERACTIVE=yes ...
 
+Some of the tests require a remote temporary directory
+(filenotify-tests.el, shadowfile-tests.el and tramp-tests.el).  Per
+default, a mock-up connection method is used (this might not be
+possible when running on MS Windows).  If you want to test a real
+remote connection, set $REMOTE_TEMPORARY_FILE_DIRECTORY to a suitable
+value in order to overwrite the default value:
+
+  env REMOTE_TEMPORARY_FILE_DIRECTORY=/ssh:host:/tmp make ...
+
 
 (Also, see etc/compilation.txt for compilation mode font lock tests.)