How to set the default regexp value of the command isearch-forward-regexp?

Question

For example: I want the regexp ^\*.* to appear as the search pattern after typing M-x isearch-forward-regexp and <return>.

score 0 · Answer 1 · answered Jul 25 '17 at 10:11

I found the solution:

(defun foo ()
  (cond
   ((string= (minibuffer-prompt) "Regexp search: ")
    (insert "^\\*.*"))))
(add-hook 'minibuffer-setup-hook 'foo)

Press C-M-s and <return>, then the regexp ^\*.* will appear as the search pattern.
Complement the full regexp (such as ^\*.*emacs) and <return>.
Press C-M-s and C-s to search incrementally.

References:

1 Answers1