14-02

test/parser/back.dart

@@ -0,0 +1,9 @@
+void main(){
+  print(backPath('/a/c/d?k=v'));
+}
+
+String backPath(String path){
+  Uri uri = Uri.parse(path);
+  List<String> parts = List.of(uri.pathSegments)..removeLast();
+  return '/${parts.join('/')}';
+}