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Fix some ‘window-normalize-’ prefixed functions (Bug#28947)

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* lisp/window.el (window-normalize-buffer): Fix case where
BUFFER-OR-NAME is a string specifying a dead buffer.  Fix
doc-string (Bug#28947).
(window-normalize-frame, window-normalize-window): Fix
doc-strings (Bug#28947).
This commit is contained in:
Martin Rudalics 2017-10-23 09:53:41 +02:00
parent 6360611457
commit 46cdc01daa
1 changed files with 31 additions and 15 deletions
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46
lisp/window.el
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@ -320,22 +320,34 @@ WINDOW can be any window."
(defun window-normalize-buffer (buffer-or-name)
"Return buffer specified by BUFFER-OR-NAME.
BUFFER-OR-NAME must be either a buffer or a string naming a live
buffer and defaults to the current buffer."
(cond
((not buffer-or-name)
(current-buffer))
((bufferp buffer-or-name)
(if (buffer-live-p buffer-or-name)
buffer-or-name
(error "Buffer %s is not a live buffer" buffer-or-name)))
((get-buffer buffer-or-name))
(t
(error "No such buffer %s" buffer-or-name))))
BUFFER-OR-NAME must be a live buffer, a string naming a live
buffer or nil which means to return the current buffer.
This function is commonly used to process the (usually optional)
\"BUFFER-OR-NAME\" argument of window related functions where nil
stands for the current buffer."
(let ((buffer
(cond
((not buffer-or-name)
(current-buffer))
((bufferp buffer-or-name)
buffer-or-name)
((stringp buffer-or-name)
(get-buffer buffer-or-name))
(t
(error "No such buffer %s" buffer-or-name)))))
(if (buffer-live-p buffer)
buffer
(error "No such live buffer %s" buffer-or-name))))
(defun window-normalize-frame (frame)
"Return frame specified by FRAME.
FRAME must be a live frame and defaults to the selected frame."
FRAME must be a live frame or nil which means to return the
selected frame.
This function is commonly used to process the (usually optional)
\"FRAME\" argument of window and frame related functions where
nil stands for the selected frame."
(if frame
(if (frame-live-p frame)
frame
@ -343,11 +355,15 @@ FRAME must be a live frame and defaults to the selected frame."
(selected-frame)))
(defun window-normalize-window (window &optional live-only)
"Return the window specified by WINDOW.
"Return window specified by WINDOW.
If WINDOW is nil, return the selected window. Otherwise, if
WINDOW is a live or an internal window, return WINDOW; if
LIVE-ONLY is non-nil, return WINDOW for a live window only.
Otherwise, signal an error."
Otherwise, signal an error.
This function is commonly used to process the (usually optional)
\"WINDOW\" argument of window related functions where nil stands
for the selected window."
(cond
((null window)
(selected-window))