// Copyright (c) 2014, the Dart project authors. All rights reserved.
// Copyright 2013 the V8 project authors. All rights reserved.
// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
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import 'v8_regexp_utils.dart';
import 'package:expect/expect.dart';

void main() {
  description(
  'Test regular expression processing with alternatives.'
  );

  var s1 = "<p>content</p>";
  shouldBe(firstMatch(s1, new RegExp(r"<((\\/([^>]+)>)|(([^>]+)>))")), ["<p>","p>",null,null,"p>","p"]);
  shouldBe(firstMatch(s1, new RegExp(r"<((ABC>)|(\\/([^>]+)>)|(([^>]+)>))")), ["<p>","p>",null,null,null,"p>","p"]);
  shouldBe(firstMatch(s1, new RegExp(r"<(a|\\/p|.+?)>")), ["<p>","p"]);

  // Force YARR to use Interpreter by using iterative parentheses
  shouldBe(firstMatch(s1, new RegExp(r"<((\\/([^>]+)>)|((([^>])+)>))")), ["<p>","p>",null,null,"p>","p","p"]);
  shouldBe(firstMatch(s1, new RegExp(r"<((ABC>)|(\\/([^>]+)>)|((([^>])+)>))")), ["<p>","p>",null,null,null,"p>","p","p"]);
  shouldBe(firstMatch(s1, new RegExp(r"<(a|\\/p|(.)+?)>")), ["<p>","p","p"]);

  // Force YARR to use Interpreter by using backreference
  var s2 = "<p>p</p>";
  shouldBe(firstMatch(s2, new RegExp(r"<((\\/([^>]+)>)|(([^>]+)>))\5")), ["<p>p","p>",null,null,"p>","p"]);
  shouldBe(firstMatch(s2, new RegExp(r"<((ABC>)|(\\/([^>]+)>)|(([^>]+)>))\6")), ["<p>p","p>",null,null,null,"p>","p"]);
  shouldBe(firstMatch(s2, new RegExp(r"<(a|\\/p|.+?)>\1")), ["<p>p","p"]);
}