From e62611ba0dbe04d037ac2ef57b908a57fb20c20e Mon Sep 17 00:00:00 2001
From: Andrew Miller <andrew.miller@rakuten.com>
Date: Mon, 24 Apr 2017 15:56:27 +0900
Subject: [PATCH] =?UTF-8?q?Extracted=20regex=20to=20local=20variable=20as?=
 =?UTF-8?q?=20it=E2=80=99s=20unsupported=20on=20bash=20versions=20<=203.1.?=
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---
 lib/helpers.bash | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/helpers.bash b/lib/helpers.bash
index 607e0047..d9dad053 100644
--- a/lib/helpers.bash
+++ b/lib/helpers.bash
@@ -437,7 +437,8 @@ then
     example 'pathmunge /path/to/dir is equivalent to PATH=/path/to/dir:$PATH'
     example 'pathmunge /path/to/dir after is equivalent to PATH=$PATH:/path/to/dir'
 
-    if ! [[ $PATH =~ (^|:)$1($|:) ]] ; then
+    local re="(^|:)$1($|:)"
+    if ! [[ $PATH =~ $re ]] ; then
       if [ "$2" = "after" ] ; then
         export PATH=$PATH:$1
       else