1

It may be handy to make it shortly, for example use (GET|POST): *\{ instead of \(GET\|POST\): *{

2

Just adapt isearch-search-fun-function:

(defun isearch-extended-regexp-forward ()
  (interactive)
  (let ((regexp-chars "[|{}()`=<>]")
        (isearch-message-prefix-add "Extended ")
        (isearch-search-fun-function
         (lambda ()
           (lambda (regexp &rest other-args)
             (apply (isearch-search-fun-default)
               (replace-regexp-in-string
                regexp-chars "\\\\\\&" regexp t)
               other-args)))))
    (isearch-forward t)))
  • Excellent! Exactly what I need, thank you! – Netsu Mar 23 '15 at 6:17
  • Nice workaround! – Drew Apr 10 '15 at 4:09
3

I'm afraid that the answer is no - there is no easy, out-of-the-box way to do that.

This has been discussed in the Emacs Dev mailing list a few times now, as a possible extension to Emacs Lisp. Well, not just for Isearch but for regexps in general.

Here are two interesting threads about it: 1 and 2.

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