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(push-mark): Don't push on global-mark-ring if its car is a marker in the

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current buffer.
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Roland McGrath 1994-02-07 04:48:18 +00:00
parent dc029f0bf1
commit f1382a3d0d
1 changed files with 9 additions and 3 deletions
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12
lisp/simple.el
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@ -1338,7 +1338,8 @@ purposes. See the documentation of `set-mark' for more information."
(defun push-mark (&optional location nomsg activate)
"Set mark at LOCATION (point, by default) and push old mark on mark ring.
Also push LOCATION on the global mark ring.
If the last global mark pushed was not in the current buffer,
also push LOCATION on the global mark ring.
Display `Mark set' unless the optional second arg NOMSG is non-nil.
In Transient Mark mode, activate mark if optional third arg ACTIVATE non-nil.
@ -1355,12 +1356,17 @@ In Transient Mark mode, this does not activate the mark."
(setcdr (nthcdr (1- mark-ring-max) mark-ring) nil))))
(set-marker (mark-marker) (or location (point)) (current-buffer))
;; Now push the mark on the global mark ring.
(setq global-mark-ring (cons (copy-marker (mark-marker)) global-mark-ring))
(if (and global-mark-ring
(eq (marker-buffer (car global-mark-ring) (current-buffer))))
;; The last global mark pushed was in this same buffer.
;; Don't push another one.
nil
(setq global-mark-ring (cons (copy-marker (mark-marker)) global-mark-ring))
(if (> (length global-mark-ring) global-mark-ring-max)
(progn
(move-marker (car (nthcdr global-mark-ring-max global-mark-ring))
nil)
(setcdr (nthcdr (1- global-mark-ring-max) global-mark-ring) nil)))
(setcdr (nthcdr (1- global-mark-ring-max) global-mark-ring) nil))))
(or nomsg executing-macro (> (minibuffer-depth) 0)
(message "Mark set"))
(if (or activate (not transient-mark-mode))