(grep-regexp-alist): Match columns and column ranges, if present.

lisp/progmodes/grep.el

@@ -216,7 +216,7 @@ Notice that using \\[next-error] or \\[compile-goto-error] modifies
 `complation-last-buffer' rather than `grep-last-buffer'.")
 
 (defvar grep-regexp-alist
-  '(("^\\(.+?\\)[:( \t]+\\([0-9]+\\)[:) \t]" 1 2)
+  '(("^\\(.+?\\)[:( \t]+\\([0-9]+\\)\\([:) \t]\\)\\(?:\\([0-9]+\\)\\(?:-\\([0-9]+\\)\\)?\\3\\)?" 1 2 (4 . 5))
     ("^Binary file \\(.+\\) matches$" 1 nil nil 1))
   "Regexp used to match grep hits.  See `compilation-error-regexp-alist'.")