1 files changed, 11 insertions, 0 deletions

diff --git a/lisp/gud.el b/lisp/gud.el
index 34e740bd50f..b8080e0ae72 100644
--- a/lisp/gud.el
+++ b/lisp/gud.el
@@ -317,6 +317,17 @@ available with older versions of GDB."
             (setcdr first (setq second (cdr second)))
           (setq first second
                 second (cdr second)))))
+    ;; Add a trailing single quote if there is a unique completion
+    ;; and it contains an odd number of unquoted single quotes.
+    (and (= (length gud-gdb-complete-list) 1)
+         (let ((str (car gud-gdb-complete-list))
+               (pos 0)
+               (count 0))
+           (while (string-match "\\([^'\\]\\|\\\\'\\)*'" str pos)
+             (setq count (1+ count)
+                   pos (match-end 0)))
+           (and (= (mod count 2) 1)
+                (setq gud-gdb-complete-list (list (concat str "'"))))))
     ;; Let comint handle the rest.
     (comint-dynamic-simple-complete command-word gud-gdb-complete-list)))