// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

/// @assertion 15.10.2.8: Parentheses of the form ( Disjunction ) serve both to
/// group the components of the Disjunction pattern together and tov save the
/// result of the match. The result can be used either in a backreference (\
/// followed by a nonzero decimal number), referenced in a replace String, or
/// returned as part of a list from the regular expression matching internal
/// procedure.
/// @description Checks that the contents of parentheses are correctly captured.
/// More complex test.
/// @3rdparty sputnik-v1:S15.10.2.8_A3_T17.js
/// @author rodionov
/// @reviewer pagolubev

import "../../../../Utils/expect.dart";
 

main() {
  String body = r"""
<body onXXX="alert(event.type);">
<p>Kibology for all</p>
<p>All for Kibology</p>
</body>""";
  String html = "<html>\n$body\n</html>";
  check(r"<body.*>((.*\n?)*?)</body>", html, ignoreCase:true , matchPos: 7,
      expectedGroups: [body,
      "\n<p>Kibology for all</p>\n<p>All for Kibology</p>\n",
      "<p>All for Kibology</p>\n"]);
}

void check(String pattern, String str, {bool multiLine: false,
    bool ignoreCase: false, int matchPos: -1,
    List<String>? expectedGroups: null}) {
  RegExp re = new RegExp(pattern, multiLine: multiLine,
      caseSensitive: !ignoreCase);
  Expect.isNotNull(re.firstMatch(str), "\"$pattern\" !~ \"$str\"");
  Match fm = re.firstMatch(str) as Match;
  if(matchPos >= 0) {
    Expect.equals(matchPos, fm.start);
  }
  if(null != expectedGroups) {
    Expect.equals(expectedGroups.length, fm.groupCount + 1);
    
    for(int i = 0; i <= fm.groupCount; i++) {
      String? expGr = expectedGroups[i];
      String? actGr = fm.group(i);
      Expect.equals(expGr, actGr,
          "Mismatch at group $i: \"$expGr\" expected instead of \"$actGr\"");
    }
  }
}