Add arabic translation test. See #25

fixtures/ar/categories.po

@@ -0,0 +1,6 @@
+msgid ""
+msgstr ""
+"Plural-Forms: nplurals=2; plural=(n != 1);\n"
+
+msgid "Alcohol & Tobacco"
+msgstr "الكحول والتبغ"

locale_test.go

@@ -471,3 +471,17 @@ func TestAddTranslator(t *testing.T) {
 		t.Errorf("Expected 'en_US' but got '%s'", tr)
 	}
 }
+
+func TestArabicTranslation(t *testing.T) {
+	// Create Locale
+	l := NewLocale("fixtures/", "ar")
+
+	// Add domain
+	l.AddDomain("categories")
+
+	// Get translation
+	tr := l.GetD("categories", "Alcohol & Tobacco")
+	if tr != "الكحول والتبغ" {
+		t.Errorf("Expected to get 'الكحول والتبغ', but got '%s'", tr)
+	}
+}

translator.go

@@ -5,7 +5,8 @@
 
 package gotext
 
-// Translator interface is used by Locale and Po objects
+// Translator interface is used by Locale and Po objects.Translator
+// It contains all methods needed to parse translation sources and obtain corresponding translations.
 type Translator interface {
 	ParseFile(f string)
 	Parse(buf []byte)