From 056876e01f8e4d2ca5e5ee657346f37650332b1c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Robert=20G=C3=BCnzler?= <robertguenzler@kinvolk.io>
Date: Tue, 17 Oct 2017 14:54:28 +0200
Subject: [PATCH] Add SetKeyDelimiter

Allow changing the Key Delimiter for accessing nested values.

Fixes #170
---
 viper.go      | 7 +++++++
 viper_test.go | 5 +++++
 2 files changed, 12 insertions(+)

diff --git a/viper.go b/viper.go
index 963861a..62ea1e6 100644
--- a/viper.go
+++ b/viper.go
@@ -1560,6 +1560,13 @@ func (v *Viper) findConfigFile() (string, error) {
 	return "", ConfigFileNotFoundError{v.configName, fmt.Sprintf("%s", v.configPaths)}
 }
 
+func SetKeyDelimiter(in string) { v.SetKeyDelimiter(in) }
+func (v *Viper) SetKeyDelimiter(in string) {
+	if in != "" {
+		v.keyDelim = in
+	}
+}
+
 // Debug prints all configuration registries for debugging
 // purposes.
 func Debug() { v.Debug() }
diff --git a/viper_test.go b/viper_test.go
index 774ca11..3a3a7b4 100644
--- a/viper_test.go
+++ b/viper_test.go
@@ -1181,6 +1181,11 @@ func doTestCaseInsensitive(t *testing.T, typ, config string) {
 	assert.Equal(t, 4, cast.ToInt(Get("ef.lm.no")))
 	assert.Equal(t, 5, cast.ToInt(Get("ef.lm.p.q")))
 
+	SetKeyDelimiter("::")
+	assert.Equal(t, 2, cast.ToInt(Get("ef::gh")))
+	assert.Equal(t, 3, cast.ToInt(Get("ef::ijk")))
+	assert.Equal(t, 4, cast.ToInt(Get("ef::lm::no")))
+	assert.Equal(t, 5, cast.ToInt(Get("ef::lm::p::q")))
 }
 
 func BenchmarkGetBool(b *testing.B) {