/*

 * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

/**

 * JDK-8009230: Nashorn rejects extended RegExp syntax accepted by all major JS engines

 *

 * @test

 * @run

 */

// Invalid ControlEscape/IdentityEscape character treated as literal.

print(/\z/.exec("z"));  // Invalid escape, same as /z/

// Incomplete/Invalid ControlEscape treated as "\\c"

print(/\c/.exec("\\c"));  // same as /\\c/

print(/\c2/.exec("\\c2"));  // same as /\\c2/

print(/\C/.exec("C"));  // same as /C/

print(/\C2/.exec("C2"));  // same as /C2/

// Incomplete HexEscapeSequence escape treated as "x".

print(/\x/.exec("x"));  // incomplete x-escape

print(/\x1/.exec("x1"));  // incomplete x-escape

print(/\x1z/.exec("x1z"));  // incomplete x-escape

// Incomplete UnicodeEscapeSequence escape treated as "u".

print(/\u/.exec("u"));  // incomplete u-escape

print(/\uz/.exec("uz"));  // incomplete u-escape

print(/\u1/.exec("u1"));  // incomplete u-escape

print(/\u1z/.exec("u1z"));  // incomplete u-escape

print(/\u12/.exec("u12"));  // incomplete u-escape

print(/\u12z/.exec("u12z"));  // incomplete u-escape

print(/\u123/.exec("u123"));  // incomplete u-escape

print(/\u123z/.exec("u123z"));  // incomplete u-escape

// Bad quantifier range:

print(/x{z/.exec("x{z"));  // same as /x\{z/

print(/x{1z/.exec("x{1z"));  // same as /x\{1z/

print(/x{1,z/.exec("x{1,z"));  // same as /x\{1,z/

print(/x{1,2z/.exec("x{1,2z"));  // same as /x\{1,2z/

print(/x{10000,20000z/.exec("x{10000,20000z"));  // same as /x\{10000,20000z/

// Notice: It needs arbitrary lookahead to determine the invalidity,

// except Mozilla that limits the numbers.

// Zero-initialized Octal escapes.

/\012/;    // same as /\x0a/

// Nonexisting back-references smaller than 8 treated as octal escapes:

print(/\5/.exec("\u0005"));  // same as /\x05/

print(/\7/.exec("\u0007"));  // same as /\x07/

print(/\8/.exec("\u0008"));  // does not match

// Invalid PatternCharacter accepted unescaped

print(/]/.exec("]"));

print(/{/.exec("{"));

print(/}/.exec("}"));

// Bad escapes also inside CharacterClass.

print(/[\z]/.exec("z"));

print(/[\c]/.exec("c"));

print(/[\c2]/.exec("c"));

print(/[\x]/.exec("x"));

print(/[\x1]/.exec("x1"));

print(/[\x1z]/.exec("x1z"));

print(/[\u]/.exec("u"));

print(/[\uz]/.exec("u"));

print(/[\u1]/.exec("u"));

print(/[\u1z]/.exec("u"));

print(/[\u12]/.exec("u"));

print(/[\u12z]/.exec("u"));

print(/[\u123]/.exec("u"));

print(/[\u123z]/.exec("u"));

print(/[\012]/.exec("0"));

print(/[\5]/.exec("5"));

// And in addition:

print(/[\B]/.exec("B"));

print(/()()[\2]/.exec(""));  // Valid backreference should be invalid.