Merge from origin/emacs-26

037970f Document insert-image-file's return value (Bug#32978)
598b45a Autoload cua-toggle-rectangle-mark (Bug#34947)
95bd56d Tell xclip not to expect job-control under eshell (Bug#35257)
9997bbb ; * src/emacs.c: Fix typo in comment (Bug#35320).
a4ad7be Fix off-by-one-link error in image--set-property

lisp/emulation/cua-base.el

@@ -602,6 +602,7 @@ a cons (TYPE . COLOR), then both properties are affected."
 
 (autoload 'cua-set-rectangle-mark "cua-rect"
   "Start rectangle at mouse click position." t nil)
+(autoload 'cua-toggle-rectangle-mark "cua-rect" nil t)
 
 ;; Stub definitions until it is loaded
 (defvar cua--rectangle)

lisp/eshell/esh-proc.el

@@ -251,7 +251,11 @@ The prompt will be set to PROMPT."
   "A marker that tracks the beginning of output of the last subprocess.
 Used only on systems which do not support async subprocesses.")
 
-(defvar eshell-needs-pipe '("bc")
+(defvar eshell-needs-pipe
+  '("bc"
+    ;; xclip.el (in GNU ELPA) calls all of these with
+    ;; `process-connection-type' set to nil.
+    "pbpaste" "putclip" "xclip" "xsel" "wl-copy")
   "List of commands which need `process-connection-type' to be nil.
 Currently only affects commands in pipelines, and not those at
 the front.  If an element contains a directory part it must match

lisp/image-file.el

@@ -97,8 +97,9 @@ the variable is set using \\[customize]."
 ;;;###autoload
 (defun insert-image-file (file &optional visit beg end replace)
   "Insert the image file FILE into the current buffer.
-Optional arguments VISIT, BEG, END, and REPLACE are interpreted as for
-the command `insert-file-contents'."
+Optional arguments VISIT, BEG, END, and REPLACE are interpreted
+as for the command `insert-file-contents'.  Return list of
+absolute file name and number of characters inserted."
   (let ((rval
 	 (image-file-call-underlying #'insert-file-contents-literally
 				     'insert-file-contents

lisp/image.el

@@ -454,10 +454,10 @@ Internal use only."
         ;; plist.  Decouple plist entries where the key matches
         ;; the property.
         (if (eq (cadr image) property)
-            (setcdr image (cddr image))
+            (setcdr image (cdddr image))
           (setq image (cddr image))))
     ;; Just enter the new value.
-    (plist-put (cdr image) property value))
+    (setcdr image (plist-put (cdr image) property value)))
   value)
 
 (defun image-property (image property)

src/emacs.c

@@ -342,7 +342,7 @@ section of the Emacs manual or the file BUGS.\n"
 bool fatal_error_in_progress;
 
 #ifdef HAVE_NS
-/* NS autrelease pool, for memory management.  */
+/* NS autorelease pool, for memory management.  */
 static void *ns_pool;
 #endif
 

test/lisp/image-tests.el

@@ -0,0 +1,45 @@
+;;; image-tests.el --- tests for image.el -*- lexical-binding: t -*-
+
+;; Copyright (C) 2019 Free Software Foundation, Inc.
+
+;; This file is part of GNU Emacs.
+
+;; GNU Emacs is free software: you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+
+;; GNU Emacs is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.
+
+;;; Code:
+
+(require 'ert)
+(require 'image)
+
+(ert-deftest image--set-property ()
+  "Test `image--set-property' behavior."
+  (let ((image (list 'image)))
+    ;; Add properties.
+    (setf (image-property image :scale) 1)
+    (should (equal image '(image :scale 1)))
+    (setf (image-property image :width) 8)
+    (should (equal image '(image :scale 1 :width 8)))
+    (setf (image-property image :height) 16)
+    (should (equal image '(image :scale 1 :width 8 :height 16)))
+    ;; Delete properties.
+    (setf (image-property image :type) nil)
+    (should (equal image '(image :scale 1 :width 8 :height 16)))
+    (setf (image-property image :scale) nil)
+    (should (equal image '(image :width 8 :height 16)))
+    (setf (image-property image :height) nil)
+    (should (equal image '(image :width 8)))
+    (setf (image-property image :width) nil)
+    (should (equal image '(image)))))
+
+;;; image-tests.el ends here