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// 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 Atom's captures are cleared each time Atom is repeated.
/// @description Checks that the assertion is true.
/// @3rdparty sputnik-v1:S15.10.2.5_A1_T4.js
/// @author rodionov
/// @reviewer msyabro
/// @note issue 1290
import "../../../../Utils/expect.dart";
main() {
check("(z)((a+)?(b+)?(c))*", "zaacbbbcac", ["zaacbbbcac", "z", "ac", "a",
null, "c"]);
check("(z)((a+)?(b+)?(c))*", "zaacbbbc", ["zaacbbbc", "z", "bbbc", null,
"bbb", "c"]);
void check(String pattern, String str, List<String?> expectedGroups) {
RegExp re = new RegExp(pattern);
Expect.isNotNull(re.firstMatch(str), "\"$pattern\" !~ \"$str\"");
Match fm = re.firstMatch(str) as Match;
if(null != expectedGroups) {
Expect.equals(expectedGroups.length, fm.groupCount + 1);
for(int i = 0; i <= fm.groupCount; i++) {
String? expGr = expectedGroups[i];
String? actGr =;
Expect.equals(expGr, actGr,
"Mismatch at group $i: \"$expGr\" expected instead of \"$actGr\"");