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-rw-r--r--lisp/replace.el12
1 files changed, 11 insertions, 1 deletions
diff --git a/lisp/replace.el b/lisp/replace.el
index ee0c2ba7a85..71ec81ba44e 100644
--- a/lisp/replace.el
+++ b/lisp/replace.el
@@ -69,7 +69,17 @@ strings or patterns."
(setq from (read-from-minibuffer (format "%s: " string)
nil nil nil
query-replace-from-history-variable
- nil t)))
+ nil t))
+ ;; Warn if user types \n or \t, but don't reject the input.
+ (if (string-match "\\\\[nt]" from)
+ (let ((match (match-string 0 from)))
+ (cond
+ ((string= match "\\n")
+ (message "Note: `\\n' here doesn't match a newline; to do that, type C-q C-j instead"))
+ ((string= match "\\t")
+ (message "Note: `\\t' here doesn't match a tab; to do that, just type TAB")))
+ (sit-for 2))))
+
(setq to (read-from-minibuffer (format "%s %s with: " string from)
nil nil nil
query-replace-to-history-variable from t))