diff --git a/7.3.615 b/7.3.615
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+To: vim_dev@googlegroups.com
+Subject: Patch 7.3.615
+Fcc: outbox
+From: Bram Moolenaar <Bram@moolenaar.net>
+Mime-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+------------
+
+Patch 7.3.615
+Problem:    Completion for a user command does not recognize backslash before
+	    a space.
+Solution:   Recognize escaped characters. (Yasuhiro Matsumoto)
+Files:	    src/ex_docmd.c
+
+
+*** ../vim-7.3.614/src/ex_docmd.c	2012-07-10 19:25:06.000000000 +0200
+--- src/ex_docmd.c	2012-07-25 17:10:16.000000000 +0200
+***************
+*** 3390,3401 ****
+  	return NULL;
+  
+      /* Find start of last argument (argument just before cursor): */
+!     p = buff + STRLEN(buff);
+!     while (p != arg && *p != ' ' && *p != TAB)
+! 	p--;
+!     if (*p == ' ' || *p == TAB)
+! 	p++;
+      xp->xp_pattern = p;
+  
+      if (ea.argt & XFILE)
+      {
+--- 3390,3412 ----
+  	return NULL;
+  
+      /* Find start of last argument (argument just before cursor): */
+!     p = buff;
+      xp->xp_pattern = p;
++     len = STRLEN(buff);
++     while (*p && p < buff + len)
++     {
++ 	if (*p == ' ' || *p == TAB)
++ 	{
++ 	    /* argument starts after a space */
++ 	    xp->xp_pattern = ++p;
++ 	}
++ 	else
++ 	{
++ 	    if (*p == '\\' && *(p + 1) != NUL)
++ 		++p; /* skip over escaped character */
++ 	    mb_ptr_adv(p);
++ 	}
++     }
+  
+      if (ea.argt & XFILE)
+      {
+***************
+*** 3821,3828 ****
+  		    if (compl == EXPAND_MAPPINGS)
+  			return set_context_in_map_cmd(xp, (char_u *)"map",
+  					 arg, forceit, FALSE, FALSE, CMD_map);
+! 		    while ((xp->xp_pattern = vim_strchr(arg, ' ')) != NULL)
+! 			arg = xp->xp_pattern + 1;
+  		    xp->xp_pattern = arg;
+  		}
+  		xp->xp_context = compl;
+--- 3832,3853 ----
+  		    if (compl == EXPAND_MAPPINGS)
+  			return set_context_in_map_cmd(xp, (char_u *)"map",
+  					 arg, forceit, FALSE, FALSE, CMD_map);
+! 		    /* Find start of last argument. */
+! 		    p = arg;
+! 		    while (*p)
+! 		    {
+! 			if (*p == ' ')
+! 			{
+! 			    /* argument starts after a space */
+! 			    arg = p + 1;
+! 			}
+! 			else
+! 			{
+! 			    if (*p == '\\' && *(p + 1) != NUL)
+! 				++p; /* skip over escaped character */
+! 			    mb_ptr_adv(p);
+! 			}
+! 		    }
+  		    xp->xp_pattern = arg;
+  		}
+  		xp->xp_context = compl;
+*** ../vim-7.3.614/src/version.c	2012-07-25 16:46:59.000000000 +0200
+--- src/version.c	2012-07-25 17:17:05.000000000 +0200
+***************
+*** 716,717 ****
+--- 716,719 ----
+  {   /* Add new patch number below this line */
++ /**/
++     615,
+  /**/
+
+-- 
+hundred-and-one symptoms of being an internet addict:
+172. You join listservers just for the extra e-mail.
+
+ /// Bram Moolenaar -- Bram@Moolenaar.net -- http://www.Moolenaar.net   \\\
+///        sponsor Vim, vote for features -- http://www.Vim.org/sponsor/ \\\
+\\\  an exciting new programming language -- http://www.Zimbu.org        ///
+ \\\            help me help AIDS victims -- http://ICCF-Holland.org    ///