bug#11746: feature request: `isearch-query-replace' should open invisible text

[Juri Linkov <juri@jurta.org>]

It would be nice to inform the users who customized
`search-invisible' to nil that now `query-replace'
ignores hidden matches, i.e. currently at the end
`query-replace' reports in the echo area:

  Replaced 2 occurrences

Instead of keeping silence about skipped occurrences
a better message would be:

  Replaced 2 occurrences (skipped 3 read-only, 4 invisible, 5 filtered out)

=== modified file 'lisp/replace.el'
--- lisp/replace.el	2013-05-27 23:38:56 +0000
+++ lisp/replace.el	2013-05-28 22:28:01 +0000
@@ -1934,6 +1965,9 @@ (defun perform-replace (from-string repl
          (keep-going t)
          (stack nil)
          (replace-count 0)
+         (skip-read-only-count 0)
+         (skip-filtered-count 0)
+         (skip-invisible-count 0)
          (nonempty-match nil)
 	 (multi-buffer nil)
 	 (recenter-last-op nil)	; Start cycling order with initial position.
@@ -2042,20 +2076,24 @@ (defun perform-replace (from-string repl
 				(and (/= (nth 0 match) (nth 1 match))
 				     match))))))
 
-	  ;; Optionally ignore matches that have a read-only property.
-	  (when (and (or (not query-replace-skip-read-only)
-			 (not (text-property-not-all
-			       (nth 0 real-match-data) (nth 1 real-match-data)
-			       'read-only nil)))
-		     ;; Optionally filter out matches.
-		     (run-hook-with-args-until-failure
-		      'isearch-filter-predicates
-		      (nth 0 real-match-data) (nth 1 real-match-data))
-		     ;; Optionally ignore invisible matches.
-		     (or (eq search-invisible t)
-			 (not (isearch-range-invisible
-			       (nth 0 real-match-data) (nth 1 real-match-data)))))
-
+	  (cond
+	   ;; Optionally ignore matches that have a read-only property.
+	   ((not (or (not query-replace-skip-read-only)
+		     (not (text-property-not-all
+			   (nth 0 real-match-data) (nth 1 real-match-data)
+			   'read-only nil))))
+	    (setq skip-read-only-count (1+ skip-read-only-count)))
+	   ;; Optionally filter out matches.
+	   ((not (run-hook-with-args-until-failure
+		  'isearch-filter-predicates
+		  (nth 0 real-match-data) (nth 1 real-match-data)))
+	    (setq skip-filtered-count (1+ skip-filtered-count)))
+	   ;; Optionally ignore invisible matches.
+	   ((not (or (eq search-invisible t)
+		     (not (isearch-range-invisible
+			   (nth 0 real-match-data) (nth 1 real-match-data)))))
+	    (setq skip-invisible-count (1+ skip-invisible-count)))
+	   (t
 	    ;; Calculate the replacement string, if necessary.
 	    (when replacements
 	      (set-match-data real-match-data)
@@ -2260,13 +2298,31 @@ (defun perform-replace (from-string repl
 				 (match-end 0)
 				 (current-buffer))
 			      (match-data t)))
-		      stack)))))
+		      stack))))))
 
       (replace-dehighlight))
     (or unread-command-events
-	(message "Replaced %d occurrence%s"
+	(message "Replaced %d occurrence%s%s"
 		 replace-count
-		 (if (= replace-count 1) "" "s")))
+		 (if (= replace-count 1) "" "s")
+		 (if (> (+ skip-read-only-count
+			   skip-filtered-count
+			   skip-invisible-count) 0)
+		     (format " (skipped %s)"
+			     (mapconcat
+			      'identity
+			      (delq nil (list
+					 (if (> skip-read-only-count 0)
+					     (format "%s read-only"
+						     skip-read-only-count))
+					 (if (> skip-invisible-count 0)
+					     (format "%s invisible"
+						     skip-invisible-count))
+					 (if (> skip-filtered-count 0)
+					     (format "%s filtered out"
+						     skip-filtered-count))))
+			      ", "))
+		   "")))
     (or (and keep-going stack) multi-buffer)))
 
 ;;; replace.el ends here