- (if (stringp prompter)
- (setq prompter (` (lambda (object)
- (format (, prompter) object)))))
- (while (funcall next)
- (setq prompt (funcall prompter elt))
- (if (stringp prompt)
- (progn
- ;; Prompt the user about this object.
- (let ((cursor-in-echo-area t))
- (message "%s(y, n, ! ., q, %sor %s)"
- prompt user-keys
- (key-description (char-to-string help-char)))
- (setq char (read-char)))
- (cond ((or (= ?q char)
- (= ?\e char))
- (setq next (function (lambda () nil))))
- ((or (= ?y char)
- (= ?Y char)
- (= ? char))
- ;; Act on the object.
- (let ((help-form old-help-form))
- (funcall actor elt))
- (setq actions (1+ actions)))
- ((or (= ?n char)
- (= ?N char)
- (= ?\^? char))
- ;; Skip the object.
- )
- ((= ?. char)
- ;; Act on the object and then exit.
+ (if (listp last-nonmenu-event)
+ ;; Make a list describing a dialog box.
+ (let ((object (capitalize (nth 0 help)))
+ (objects (capitalize (nth 1 help)))
+ (action (capitalize (nth 2 help))))
+ (setq map (` (("Yes" . act) ("No" . skip) ("Quit" . exit)
+ ((, (if help (concat action " " object " And Quit")
+ "Do it and Quit")) . act-and-exit)
+ ((, (if help (concat action " All " objects)
+ "Do All")) . automatic)
+ (,@ (mapcar (lambda (elt)
+ (cons (capitalize (nth 2 elt))
+ (vector (nth 1 elt))))
+ action-alist))))
+ mouse-event last-nonmenu-event))
+ (setq user-keys (if action-alist
+ (concat (mapconcat (function
+ (lambda (elt)
+ (key-description
+ (char-to-string (car elt)))))
+ action-alist ", ")
+ " ")
+ "")
+ ;; Make a map that defines each user key as a vector containing
+ ;; its definition.
+ map (cons 'keymap
+ (append (mapcar (lambda (elt)
+ (cons (car elt) (vector (nth 1 elt))))
+ action-alist)
+ query-replace-map))))
+ (unwind-protect
+ (progn
+ (if (stringp prompter)
+ (setq prompter (` (lambda (object)
+ (format (, prompter) object)))))
+ (while (funcall next)
+ (setq prompt (funcall prompter elt))
+ (cond ((stringp prompt)
+ ;; Prompt the user about this object.
+ (setq quit-flag nil)
+ (if mouse-event
+ (setq def (or (x-popup-dialog mouse-event
+ (cons prompt map))
+ 'quit))
+ ;; Prompt in the echo area.
+ (let ((cursor-in-echo-area (not no-cursor-in-echo-area))
+ (message-log-max nil))
+ (message "%s(y, n, !, ., q, %sor %s) "
+ prompt user-keys
+ (key-description (vector help-char)))
+ (setq char (read-event))
+ ;; Show the answer to the question.
+ (message "%s(y, n, !, ., q, %sor %s) %s"
+ prompt user-keys
+ (key-description (vector help-char))
+ (single-key-description char)))
+ (setq def (lookup-key map (vector char))))
+ (cond ((eq def 'exit)
+ (setq next (function (lambda () nil))))
+ ((eq def 'act)
+ ;; Act on the object.
+ (funcall actor elt)
+ (setq actions (1+ actions)))
+ ((eq def 'skip)
+ ;; Skip the object.
+ )
+ ((eq def 'act-and-exit)
+ ;; Act on the object and then exit.
+ (funcall actor elt)
+ (setq actions (1+ actions)
+ next (function (lambda () nil))))
+ ((or (eq def 'quit) (eq def 'exit-prefix))
+ (setq quit-flag t)
+ (setq next (` (lambda ()
+ (setq next '(, next))
+ '(, elt)))))
+ ((eq def 'automatic)
+ ;; Act on this and all following objects.
+ (if (funcall prompter elt)
+ (progn
+ (funcall actor elt)
+ (setq actions (1+ actions))))
+ (while (funcall next)
+ (if (funcall prompter elt)
+ (progn
+ (funcall actor elt)
+ (setq actions (1+ actions))))))
+ ((eq def 'help)
+ (with-output-to-temp-buffer "*Help*"
+ (princ
+ (let ((object (if help (nth 0 help) "object"))
+ (objects (if help (nth 1 help) "objects"))
+ (action (if help (nth 2 help) "act on")))
+ (concat
+ (format "Type SPC or `y' to %s the current %s;
+DEL or `n' to skip the current %s;
+! to %s all remaining %s;
+ESC or `q' to exit;\n"
+ action object object action objects)
+ (mapconcat (function
+ (lambda (elt)
+ (format "%c to %s"
+ (nth 0 elt)
+ (nth 2 elt))))
+ action-alist
+ ";\n")
+ (if action-alist ";\n")
+ (format "or . (period) to %s \
+the current %s and exit."
+ action object))))
+ (save-excursion
+ (set-buffer standard-output)
+ (help-mode)))
+
+ (setq next (` (lambda ()
+ (setq next '(, next))
+ '(, elt)))))
+ ((vectorp def)
+ ;; A user-defined key.
+ (if (funcall (aref def 0) elt) ;Call its function.
+ ;; The function has eaten this object.
+ (setq actions (1+ actions))
+ ;; Regurgitated; try again.
+ (setq next (` (lambda ()
+ (setq next '(, next))
+ '(, elt))))))
+ ((and (consp char)
+ (eq (car char) 'switch-frame))
+ ;; switch-frame event. Put it off until we're done.
+ (setq delayed-switch-frame char)
+ (setq next (` (lambda ()
+ (setq next '(, next))
+ '(, elt)))))
+ (t
+ ;; Random char.
+ (message "Type %s for help."
+ (key-description (vector help-char)))
+ (beep)
+ (sit-for 1)
+ (setq next (` (lambda ()
+ (setq next '(, next))
+ '(, elt)))))))
+ (prompt