1 files changed, 10 insertions, 7 deletions

diff --git a/lisp/comint.el b/lisp/comint.el
index d9e48f19734..03cc7d35782 100644
--- a/lisp/comint.el
+++ b/lisp/comint.el
@@ -983,9 +983,15 @@ Quotes are single and double."
   (if (or (null comint-delimiter-argument-list)
           (string-match "[\"\'\`]" arg))
       (list arg)
-    (let ((not-delim (format "[^%s]+" (mapconcat
-                                       (function (lambda (d) (regexp-quote d)))
-                                       comint-delimiter-argument-list "")))
+    (let ((not-delim (concat
+                      (format "\\([^%s]" (mapconcat
+                                        (function (lambda (d) (regexp-quote d)))
+                                        comint-delimiter-argument-list ""))
+                      "\\|"
+                      (mapconcat (function (lambda (d)
+                                             (concat "\\\\" (regexp-quote d))))
+                                 comint-delimiter-argument-list "\\|")
+                      "\\)+"))
           (delim-str (mapconcat (function (lambda (d)
                                             (concat (regexp-quote d) "+")))
                                 comint-delimiter-argument-list "\\|"))
@@ -1080,10 +1086,7 @@ Similarly for Soar, Scheme, etc."
                           ;; functions used do insertion, rather than return
                           ;; strings.  We have to expand, then insert back.
                           (comint-replace-by-expanded-history)
-                          (let ((copy (buffer-substring pmark (point))))
-                            (delete-region pmark (point))
-                            (insert input)
-                            (comint-arguments copy 0 nil)))))
+                          (buffer-substring pmark (point)))))
           (if comint-process-echoes
               (delete-region pmark (point))
             (insert ?\n))