src/v8/test/webkit/fast/js/numeric-escapes-in-string-literals.js

// 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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description(
"Test numeric escapes in string literals - https://bugs.webkit.org/show_bug.cgi?id=51724"
);

function test(_stringLiteral, _nonStrictResult, _strictResult)
{
    stringLiteral = '"' + _stringLiteral + '"';
    nonStrictResult = _nonStrictResult;
    shouldBe("eval(stringLiteral)", "nonStrictResult");

    stringLiteral = '"use strict"; ' + stringLiteral;
    if (_strictResult) {
        strictResult = _strictResult;
        shouldBe("eval(stringLiteral)", "strictResult");
    } else
        shouldThrow("eval(stringLiteral)");
}

// Tests for single digit octal and decimal escapes.
// In non-strict mode 0-7 are octal escapes, 8-9 are NonEscapeCharacters.
// In strict mode only "\0" is permitted.
test("\\0", "\x00", "\x00");
test("\\1", "\x01");
test("\\7", "\x07");
test("\\8", "8");
test("\\9", "9");

// Tests for multi-digit octal values outside strict mode;
// Octal literals may be 1-3 digits long.  In strict more all multi-digit sequences are illegal.
test("\\00", "\x00");
test("\\000", "\x00");
test("\\0000", "\x000");

test("\\01", "\x01");
test("\\001", "\x01");
test("\\0001", "\x001");

test("\\10", "\x08");
test("\\100", "\x40");
test("\\1000", "\x400");

test("\\19", "\x019");
test("\\109", "\x089");
test("\\1009", "\x409");

test("\\99", "99");