emacs: interactively search open buffers

Question

Is there a way to search all the open buffers for a particular pattern?

C-s interactively searches current buffer. Similarly, is there something that searches all th

Answer 1

I've fixed the TODO:

;; I know that string is in my Emacs somewhere!
(require 'cl)
(defcustom search-all-buffers-ignored-files (list (rx-to-string '(and bos (or ".bash_history" "TAGS") eos)))
  "Files to ignore when searching buffers via \\[search-all-buffers]."
  :type 'editable-list)

(require 'grep)
(defun search-all-buffers (regexp prefix)
  "Searches file-visiting buffers for occurence of REGEXP.  With
prefix > 1 (i.e., if you type C-u \\[search-all-buffers]),
searches all buffers."
  (interactive (list (grep-read-regexp)
                     current-prefix-arg))
  (message "Regexp is %s; prefix is %s" regexp prefix)
  (multi-occur
   (if (member prefix '(4 (4)))
       (buffer-list)
     (remove-if
      (lambda (b) (some (lambda (rx) (string-match rx  (file-name-nondirectory (buffer-file-name b)))) search-all-buffers-ignored-files))
      (remove-if-not 'buffer-file-name (buffer-list))))

   regexp))

(global-set-key [f7] 'search-all-buffers)