From 852ddb0c6590bbc41c508d7f5d2fc17112492def Mon Sep 17 00:00:00 2001
From: Yegappan Lakshmanan <yegappan@yahoo.com>
Date: Sun, 28 Apr 2013 00:00:00 +0000
Subject: [PATCH] Version 1.11: Fixed a problem in using the "Rgrep <pattern>
 <filenames>" command.

---
 README          | 18 +++++++++++-------
 plugin/grep.vim | 16 ++++++++++++----
 2 files changed, 23 insertions(+), 11 deletions(-)

diff --git a/README b/README
index b6cfd11..39d5962 100644
--- a/README
+++ b/README
@@ -177,7 +177,11 @@ this is set to agrep. You can change this using the let command:
       :let Agrep_Path = 'd:\tools\agrep.exe'
 
 The 'Grep_Find_Path' variable is used to locate the find utility. By
-default, this is set to d:\tools\find.exe. You can change this using the let
+default, this is set to 'find'. Note that on MS-Windows, there is a find.exe
+that is part of the base OS. This find utility is different from the the
+Unix find utility. You cannot use this utility with this plugin. You must
+install the Unix compatible find utility and set the Grep_Find_Path variable
+to point to the location of the utility. You can change this using the let
 command:
 
       :let Grep_Find_Path = 'd:\tools\find.exe'
@@ -231,13 +235,13 @@ recursive searches:
 
       :let Grep_Find_Use_Xargs = 0
 
-To handle file names with space characters in them, the xargs utility
-is invoked with the '--null' argument. If the xargs utility in your system
-doesn't accept the '--null' argument, then you can change the
-Grep_Xargs_Options variable. For example, to use the '--print0' xargs
-argument, you can use the following command:
+To handle file names with space characters in them, the xargs utility is
+invoked with the '-0' argument. If the xargs utility in your system doesn't
+accept the '-0' argument, then you can change the Grep_Xargs_Options
+variable. For example, to use the '--null' xargs argument, you can use the
+following command:
 
-	:let Grep_Xargs_Options = '--print0'
+	:let Grep_Xargs_Options = '--null'
 
 The Grep_Cygwin_Find variable should be set to 1, if you are using the find
 utility from the cygwin package. This setting is used to handle the
diff --git a/plugin/grep.vim b/plugin/grep.vim
index 4947274..6a88895 100644
--- a/plugin/grep.vim
+++ b/plugin/grep.vim
@@ -1,7 +1,7 @@
 " File: grep.vim
 " Author: Yegappan Lakshmanan (yegappan AT yahoo DOT com)
-" Version: 1.10
-" Last Modified: April 20, 2013
+" Version: 1.11
+" Last Modified: April 24, 2013
 " 
 " Overview
 " --------
@@ -197,7 +197,11 @@
 "       :let Agrep_Path = 'd:\tools\agrep.exe'
 "
 " The 'Grep_Find_Path' variable is used to locate the find utility. By
-" default, this is set to d:\tools\find.exe. You can change this using the let
+" default, this is set to 'find'. Note that on MS-Windows, there is a find.exe
+" that is part of the base OS. This find utility is different from the the
+" Unix find utility. You cannot use this utility with this plugin. You must
+" install the Unix compatible find utility and set the Grep_Find_Path variable
+" to point to the location of the utility. You can change this using the let
 " command:
 "
 "       :let Grep_Find_Path = 'd:\tools\find.exe'
@@ -499,7 +503,11 @@ function! s:RunGrepRecursive(cmd_name, grep_cmd, action, ...)
             let pattern = g:Grep_Shell_Quote_Char . a:{argcnt} . 
                             \ g:Grep_Shell_Quote_Char
         else
-            let filepattern = filepattern . " " . a:{argcnt}
+            if filepattern != ""
+                let filepattern = filepattern . " " . a:{argcnt}
+            else
+                let filepattern = a:{argcnt}
+            endif
         endif
         let argcnt= argcnt + 1
     endwhile