only matches that are surrounded by word boundaries.
Fourth and fifth arg START and END specify the region to operate on."
(interactive
+ (progn
(barf-if-buffer-read-only)
(let* ((from
;; Let-bind the history var to disable the "foo -> bar" default.
(if (and transient-mark-mode mark-active)
(region-beginning))
(if (and transient-mark-mode mark-active)
- (region-end)))))
+ (region-end))))))
(perform-replace regexp (cons 'replace-eval-replacement to-expr)
t 'literal delimited nil nil start end))