From 0968d0929684772d428e67f09630e87f3fda73ba Mon Sep 17 00:00:00 2001
From: Daishan Peng <daishan@rancher.com>
Date: Fri, 3 Aug 2018 15:55:23 -0700
Subject: [PATCH] fix regular expression

https://github.com/rancher/rancher/issues/14939.
Problems:
we are not using lazy match to match the group (!=|=) so that "foo !=
bar` can be parsed wrongly as (foo !) (=) (bar).
Solutions:
Use lazy match to match as less as possible the characters in the first
group. Also improved the whitespace matches.
---
 mapper/scheduling.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mapper/scheduling.go b/mapper/scheduling.go
index 657d284b..3cccd096 100644
--- a/mapper/scheduling.go
+++ b/mapper/scheduling.go
@@ -14,7 +14,7 @@ import (
 )
 
 var (
-	exprRegexp = regexp.MustCompile("^(.*)(=|!=|<|>| in | notin )(.*)$")
+	exprRegexp = regexp.MustCompile("^(.*?)\\s*(=|!=|<|>|in|notin)\\s*(.*)$")
 )
 
 type SchedulingMapper struct {