From a89d5cf5fe18b6a287cb40c02a9508c8f3000b6a Mon Sep 17 00:00:00 2001
From: Marius Orcsik <marius@habarnam.ro>
Date: Sat, 17 Aug 2019 15:17:10 +0200
Subject: [PATCH] Added a method to check if an IRI is contained it an array of
 IRIs

---
 iri.go      | 14 ++++++++++++++
 iri_test.go |  4 ++++
 2 files changed, 18 insertions(+)

diff --git a/iri.go b/iri.go
index 5b73f3e..ed75197 100644
--- a/iri.go
+++ b/iri.go
@@ -8,6 +8,7 @@ import (
 type (
 	// IRI is a Internationalized Resource Identifiers (IRIs) RFC3987
 	IRI string
+	IRIs []IRI
 )
 
 // String returns the String value of the IRI object
@@ -59,3 +60,16 @@ func FlattenToIRI(it Item) Item {
 	}
 	return it
 }
+
+// Contains verifies if IRIs array contains the received one
+func(i IRIs) Contains(r IRI) bool {
+	if len(i) == 0 {
+		return true
+	}
+	for _, iri := range i {
+		if strings.ToLower(r.String()) == strings.ToLower(iri.String()) {
+			return true
+		}
+	}
+	return false
+}
diff --git a/iri_test.go b/iri_test.go
index 2882a18..2e3412d 100644
--- a/iri_test.go
+++ b/iri_test.go
@@ -66,3 +66,7 @@ func TestFlattenToIRI(t *testing.T) {
 func TestIRI_URL(t *testing.T) {
 	t.Skipf("TODO")
 }
+
+func TestIRIs_Contains(t *testing.T) {
+	t.Skipf("TODO")
+}