From cdd78af4bc37b17d913bf359de53b26facfa2932 Mon Sep 17 00:00:00 2001
From: Mike Farah <mike.farah@orchestrated.io>
Date: Tue, 6 Jun 2017 10:19:32 +1000
Subject: [PATCH] Fixed bug #11: Inability to set field to empty string

---
 yaml.go      | 2 +-
 yaml_test.go | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/yaml.go b/yaml.go
index 22a824e..9189291 100644
--- a/yaml.go
+++ b/yaml.go
@@ -195,7 +195,7 @@ func updateYaml(args []string) interface{} {
 
 func parseValue(argument string) interface{} {
 	var value, err interface{}
-	var inQuotes = argument[0] == '"'
+	var inQuotes = len(argument) > 0 && argument[0] == '"'
 	if !inQuotes {
 		value, err = strconv.ParseFloat(argument, 64)
 		if err == nil {
diff --git a/yaml_test.go b/yaml_test.go
index 60cc0a3..167a920 100644
--- a/yaml_test.go
+++ b/yaml_test.go
@@ -14,6 +14,7 @@ var parseValueTests = []struct {
 	{"\"true\"", "true", "boolean as string"},
 	{"3.4", 3.4, "number"},
 	{"\"3.4\"", "3.4", "number as string"},
+	{"", "", "empty string"},
 }
 
 func TestParseValue(t *testing.T) {