From 10a7cfee014154e21a235e439c2b6002b833d6b6 Mon Sep 17 00:00:00 2001
From: rupa <rupa@lrrr.us>
Date: Thu, 9 Aug 2012 14:11:31 -0400
Subject: [PATCH] correct a bug when escaping regex characters

* "\\&" was just turning characters into literal &s, "\\\&" seems to
  work, at least on this OS/awk version.
* Added ) and ] to escaped characters.
---
 z.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/z.sh b/z.sh
index 2a864fc..848e408 100755
--- a/z.sh
+++ b/z.sh
@@ -142,7 +142,7 @@ _z() {
     if( short == "/" ) return
 
     # escape regex chars in right hand side
-    gsub(/[\(\[\|]/, "\\&", short)
+    gsub(/[\(\)\[\]\|]/, "\\\&", short)
 
     # shortest match must be common to each match
     for( i in matches ) if( matches[i] && i !~ short ) return