From 2cf62de30899d4ecd9321f59b80b8da441c3e897 Mon Sep 17 00:00:00 2001
From: Guillaume Rousse <guillaume@oberkampf.msr-inria.inria.fr>
Date: Sun, 3 Jan 2010 19:01:56 +0100
Subject: [PATCH] protect against error when used in history context
 (COMP_CWORD=0)

---
 bash_completion | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/bash_completion b/bash_completion
index b2ad64a3..05f12936 100644
--- a/bash_completion
+++ b/bash_completion
@@ -326,7 +326,12 @@ _get_cword()
 # COMP_WORDBREAKS.
 # @see _get_cword()
 #
-_get_pword() { _get_cword "${@:-}" 1; }
+_get_pword() 
+{
+    if [ $COMP_CWORD -ge 1 ]; then
+        _get_cword "${@:-}" 1;
+    fi
+}
 
 
 # If the word-to-complete contains a colon (:), left-trim COMPREPLY items with