From: John Wiegley <johnw@newartisans.com>
Date: Fri, 26 Aug 2005 22:35:48 +0000 (+0000)
Subject: (eshell-parse-double-quote): If a double-quoted argument resolves to
X-Git-Tag: emacs-pretest-22.0.90~7418
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=b5306f79040c1e5cf9e98ce24eaefa5621b5b0ff;p=emacs.git

(eshell-parse-double-quote): If a double-quoted argument resolves to
nil, return it as an empty string rather than as nil.  This made it
impossible to pass "" to a shell script as a null string argument.
---

diff --git a/lisp/eshell/esh-arg.el b/lisp/eshell/esh-arg.el
index 7e0be3138e8..322a0173b27 100644
--- a/lisp/eshell/esh-arg.el
+++ b/lisp/eshell/esh-arg.el
@@ -342,8 +342,10 @@ special character that is not itself a backslash."
 	    (save-restriction
 	      (forward-char)
 	      (narrow-to-region (point) end)
-	      (list 'eshell-escape-arg
-		    (eshell-parse-argument)))
+	      (let ((arg (eshell-parse-argument)))
+		(if (eq arg nil)
+		    ""
+		  (list 'eshell-escape-arg arg))))
 	  (goto-char (1+ end)))))))
 
 (defun eshell-parse-special-reference ()