Function: ediff-get-patch-buffer

ediff-get-patch-buffer is a byte-compiled function defined in ediff-ptch.el.gz.

Signature

(ediff-get-patch-buffer &optional ARG PATCH-BUF)

Documentation

Obtain patch buffer. If patch is already in a buffer---use it.

Else, read patch file into a new buffer. If patch buffer is passed as an optional argument, then use it.

Source Code

;; Defined in /usr/src/emacs/lisp/vc/ediff-ptch.el.gz
(defun ediff-get-patch-buffer (&optional arg patch-buf)
  "Obtain patch buffer.  If patch is already in a buffer---use it.
Else, read patch file into a new buffer. If patch buffer is passed as an
optional argument, then use it."
  (let ((last-nonmenu-event t) ; Emacs: don't use dialog box
	last-command-event)    ; XEmacs: don't use dialog box

    (cond ((ediff-buffer-live-p patch-buf))
	  ;; even prefix arg: patch in buffer
	  ((and (integerp arg) (eq 0 (mod arg 2)))
	   (setq patch-buf (ediff-prompt-for-patch-buffer)))
	  ;; odd prefix arg: get patch from a file
	  ((and (integerp arg) (eq 1 (mod arg 2)))
	   (setq patch-buf (ediff-prompt-for-patch-file)))
	  (t (setq patch-buf
		   (if (y-or-n-p "Is the patch already in a buffer? ")
		       (ediff-prompt-for-patch-buffer)
		     (ediff-prompt-for-patch-file)))))

    (ediff-with-current-buffer patch-buf
      (goto-char (point-min))
      (or (ediff-get-visible-buffer-window patch-buf)
	  (progn
	    (pop-to-buffer patch-buf 'other-window)
	    (select-window (previous-window)))))
    (ediff-map-patch-buffer patch-buf)
    patch-buf))