blob: 1cc3130cb124a49b805e4e186231956fddcc7375 [file] [log] [blame]
/*
* 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 15.10.2.11: The production DecimalEscape :: DecimalIntegerLiteral
* [lookahead not in DecimalDigit] evaluates as follows:
* <ol>
* <li>Let i be the MV of DecimalIntegerLiteral.</li>
* <li>If i is zero, return the EscapeValue consisting of a <NUL>
* character (Unicode value 0000).</li>
* <li>Return the EscapeValue consisting of the integer i. </li>
* </ol>
* NOTE: If \ is followed by a decimal number n whose first digit is
* not 0, then the escape sequence is considered to be a
* backreference. It is an error if n is greater than the total
* number of left capturing parentheses in the entire regular
* expression. \0 represents the NUL character and cannot be followed
* by a decimal digit.
* @description Checks that \0 indeed evaluates to the NUL character.
* @3rdparty sputnik-v1:S15.10.2.11_A1_T1.js
* @author rodionov
* @reviewer iefremov
* @reviewer msyabro
*/
import "../../../../Utils/expect.dart";
main() {
RegExp re = new RegExp(r"\0");
Expect.isTrue(null != re.firstMatch("\u0000"));
}