* lisp/shell.el (shell-completion-vars): Set pcomplete-arg-quote-list.

* lisp/pcomplete.el (pcomplete-quote-argument): Fix thinko.

Fixes: debbugs:9161

lisp/ChangeLog

@@ -1,5 +1,8 @@
 2011-08-23  Stefan Monnier  <monnier@iro.umontreal.ca>
 
+	* shell.el (shell-completion-vars): Set pcomplete-arg-quote-list.
+	* pcomplete.el (pcomplete-quote-argument): Fix thinko (bug#9161).
+
 	* pcomplete.el (pcomplete-parse-comint-arguments): Fix inf-loop.
 	Mark obsolete.
 	* shell.el (shell-parse-pcomplete-arguments): New function.

lisp/pcomplete.el

@@ -883,7 +883,7 @@ Magic characters are those in `pcomplete-arg-quote-list'."
                        (or (run-hook-with-args-until-success
                             'pcomplete-quote-arg-hook filename index)
                            (when (memq c pcomplete-arg-quote-list)
-                             (string "\\" c))
+                             (string ?\\ c))
                            (char-to-string c))
                      (setq index (1+ index))))
                  filename

lisp/shell.el

@@ -412,6 +412,8 @@ to `dirtrack-mode'."
        shell-dynamic-complete-functions)
   (set (make-local-variable 'pcomplete-parse-arguments-function)
        #'shell-parse-pcomplete-arguments)
+  (set (make-local-variable 'pcomplete-arg-quote-list)
+       (append "\\ \t\n\r\"'`$|&;(){}[]<>#" nil))
   (set (make-local-variable 'pcomplete-termination-string)
        (cond ((not comint-completion-addsuffix) "")
              ((stringp comint-completion-addsuffix)