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87 lines
4.1 KiB
87 lines
4.1 KiB
// Copyright 2013 the V8 project authors. All rights reserved.
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// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions
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// are met:
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// 1. Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// 2. Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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//
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// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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description("This page tests toString conversion of RegExp objects, particularly wrt to '/' characters and RegExp.prototype.");
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function testForwardSlash(pattern, _string)
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{
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string = _string;
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re1 = new RegExp(pattern);
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re2 = eval(re1.toString());
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return re1.test(string) && re2.test(string);
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}
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function testLineTerminator(pattern)
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{
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re1 = new RegExp(pattern);
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return /\n|\r|\u2028|\u2029/.test(re1.toString());
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}
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shouldBe("RegExp('/').source", '"\\\\/"');
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shouldBe("RegExp('').source", '"(?:)"');
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shouldBe("RegExp.prototype.source", '"(?:)"');
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shouldBe("RegExp('/').toString()", '"/\\\\//"');
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shouldBe("RegExp('').toString()", '"/(?:)/"');
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shouldBe("RegExp.prototype.toString()", '"/(?:)/"');
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// These strings are equivalent, since the '\' is identity escaping the '/' at the string level.
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shouldBeTrue('testForwardSlash("^/$", "/");');
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shouldBeTrue('testForwardSlash("^\/$", "/");');
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// This string passes "^\/$" to the RegExp, so the '/' is escaped in the re!
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shouldBeTrue('testForwardSlash("^\\/$", "/");');
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// These strings pass "^\\/$" and "^\\\/$" respectively to the RegExp, giving one '\' to match.
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shouldBeTrue('testForwardSlash("^\\\\/$", "\\/");');
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shouldBeTrue('testForwardSlash("^\\\\\\/$", "\\/");');
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// These strings match two backslashes (the second with the '/' escaped).
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shouldBeTrue('testForwardSlash("^\\\\\\\\/$", "\\\\/");');
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shouldBeTrue('testForwardSlash("^\\\\\\\\\\/$", "\\\\/");');
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// Test that nothing goes wrongif there are multiple forward slashes!
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shouldBeTrue('testForwardSlash("x/x/x", "x\\/x\\/x");');
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shouldBeTrue('testForwardSlash("x\\/x/x", "x\\/x\\/x");');
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shouldBeTrue('testForwardSlash("x/x\\/x", "x\\/x\\/x");');
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shouldBeTrue('testForwardSlash("x\\/x\\/x", "x\\/x\\/x");');
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shouldBeFalse('testLineTerminator("\\n");');
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shouldBeFalse('testLineTerminator("\\\\n");');
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shouldBeFalse('testLineTerminator("\\r");');
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shouldBeFalse('testLineTerminator("\\\\r");');
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shouldBeFalse('testLineTerminator("\\u2028");');
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shouldBeFalse('testLineTerminator("\\\\u2028");');
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shouldBeFalse('testLineTerminator("\\u2029");');
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shouldBeFalse('testLineTerminator("\\\\u2029");');
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shouldBe("RegExp('[/]').source", "'[/]'");
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shouldBe("RegExp('\\\\[/]').source", "'\\\\[\\\\/]'");
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// See 15.10.6.4
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// The first half of this checks that:
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// Return the String value formed by concatenating the Strings "/", the
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// String value of the source property of this RegExp object, and "/";
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// The second half checks that:
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// The returned String has the form of a RegularExpressionLiteral that
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// evaluates to another RegExp object with the same behaviour as this object.
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shouldBe("var o = new RegExp(); o.toString() === '/'+o.source+'/' && eval(o.toString()+'.exec(String())')", '[""]');
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