From ad35bd82c3918c4674425078aca449f8871e9abc Mon Sep 17 00:00:00 2001
From: Menna Fadali <mennafadali@google.com>
Date: Fri, 13 Mar 2020 13:12:14 +0100
Subject: [PATCH] Implementing Locale.toLanguageTag in flutter web.

---
 lib/web_ui/lib/src/ui/window.dart | 18 ++++++++----------
 1 file changed, 8 insertions(+), 10 deletions(-)

diff --git a/lib/web_ui/lib/src/ui/window.dart b/lib/web_ui/lib/src/ui/window.dart
index d143c504696c4..f19432c4e0832 100644
--- a/lib/web_ui/lib/src/ui/window.dart
+++ b/lib/web_ui/lib/src/ui/window.dart
@@ -478,19 +478,17 @@ class Locale {
   int get hashCode => hashValues(languageCode, scriptCode, countryCode);
 
   @override
-  String toString() {
+  String toString() => _rawToString('_');
+
+  // TODO(yjbanov): implement to match flutter native.
+  String toLanguageTag() => _rawToString('-');
+
+  String _rawToString(String separator) {
     final StringBuffer out = StringBuffer(languageCode);
-    if (scriptCode != null) {
-      out.write('_$scriptCode');
-    }
-    if (_countryCode != null) {
-      out.write('_$countryCode');
-    }
+    if (scriptCode != null) out.write('$separator$scriptCode');
+    if (_countryCode != null) out.write('$separator$countryCode');
     return out.toString();
   }
-
-  // TODO(yjbanov): implement to match flutter native.
-  String toLanguageTag() => '_';
 }
 
 /// The most basic interface to the host operating system's user interface.