From 90204d38fc07d40b1e42de33f4f6670f9ff07731 Mon Sep 17 00:00:00 2001
From: Anthony Romano <anthony.romano@coreos.com>
Date: Wed, 31 Aug 2016 13:54:45 -0700
Subject: [PATCH] etcdctl: fix quoted string handling in txn and watch

Fixes #6315
---
 etcdctl/ctlv3/command/util.go | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

diff --git a/etcdctl/ctlv3/command/util.go b/etcdctl/ctlv3/command/util.go
index 57464510e39b..af8d3c1b1189 100644
--- a/etcdctl/ctlv3/command/util.go
+++ b/etcdctl/ctlv3/command/util.go
@@ -48,8 +48,23 @@ func addHexPrefix(s string) string {
 }
 
 func argify(s string) []string {
-	r := regexp.MustCompile("'.+'|\".+\"|\\S+")
-	return r.FindAllString(s, -1)
+	r := regexp.MustCompile(`"(\\.|[^"])*"|'[^']*'|\w+`)
+	args := r.FindAllString(s, -1)
+	for i := range args {
+		if len(args[i]) == 0 {
+			continue
+		}
+		if args[i][0] == '\'' {
+			// 'single-quoted string'
+			args[i] = args[i][1 : len(args)-1]
+		} else if args[i][0] == '"' {
+			// "double quoted string"
+			if _, err := fmt.Sscanf(args[i], "%q", &args[i]); err != nil {
+				ExitWithError(ExitInvalidInput, err)
+			}
+		}
+	}
+	return args
 }
 
 func commandCtx(cmd *cobra.Command) (context.Context, context.CancelFunc) {