(dired-mark-files-containing-regexp): New command.

(dired-mode-map): Bind it to %g and in menu bar.

diff --git a/lisp/dired.el b/lisp/dired.el
index 348fda3..8b602c6 100644 (file)
--- a/lisp/dired.el
+++ b/lisp/dired.el
@@ -853,6 +853,7 @@ If DIRNAME is already in a dired buffer, that buffer is used without refresh."
     (define-key map "%u" 'dired-upcase)
     (define-key map "%l" 'dired-downcase)
     (define-key map "%d" 'dired-flag-files-regexp)
+    (define-key map "%g" 'dired-mark-files-containing-regexp)
     (define-key map "%m" 'dired-mark-files-regexp)
     (define-key map "%r" 'dired-do-rename-regexp)
     (define-key map "%C" 'dired-do-copy-regexp)
@@ -987,6 +988,8 @@ If DIRNAME is already in a dired buffer, that buffer is used without refresh."
       '("Flag..." . dired-flag-files-regexp))
     (define-key map [menu-bar regexp mark]
       '("Mark..." . dired-mark-files-regexp))
+    (define-key map [menu-bar regexp mark]
+      '("Mark Containing..." . dired-mark-files-containing-regexp))
 
     (define-key map [menu-bar mark]
       (cons "Mark" (make-sparse-keymap "Mark")))
@@ -2148,6 +2151,32 @@ object files--just `.o' will mark more than you might think."
            (and fn (string-match regexp (file-name-nondirectory fn)))))
      "matching file")))
 
+(defun dired-mark-files-containing-regexp (regexp &optional marker-char)
+  "Mark all files with contents containing REGEXP for use in later commands.
+A prefix argument means to unmark them instead.
+`.' and `..' are never marked."
+  (interactive
+   (list (dired-read-regexp (concat (if current-prefix-arg "Unmark" "Mark")
+                                   " files containing (regexp): "))
+        (if current-prefix-arg ?\040)))
+  (let ((dired-marker-char (or marker-char dired-marker-char)))
+    (dired-mark-if
+     (and (not (looking-at dired-re-dot))
+         (not (eolp))                  ; empty line
+         (let ((fn (dired-get-filename nil t)))
+           (and fn (save-excursion
+                     ;; For now we do it inside emacs
+                     ;; Grep might be better if there are a lot of files
+                     (message "Checking %s" fn)
+                     (let* ((prebuf (get-file-buffer fn)))
+                       (find-file fn)
+                       (goto-char (point-min))
+                       (prog1 
+                           (re-search-forward regexp nil t)
+                         (if (not prebuf) (kill-buffer nil))))
+                     ))))
+     "matching file")))
+
 (defun dired-flag-files-regexp (regexp)
   "In dired, flag all files containing the specified REGEXP for deletion.
 The match is against the non-directory part of the filename.  Use `^'