2de5de495f
Allows backtracking to clear registers instead of pushing and popping them to restore state. Redo of 1135 with bug fixed. git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1156 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
53 lines
2.5 KiB
JavaScript
Executable File
53 lines
2.5 KiB
JavaScript
Executable File
// Copyright 2009 the V8 project authors. All rights reserved.
|
|
// Redistribution and use in source and binary forms, with or without
|
|
// modification, are permitted provided that the following conditions are
|
|
// met:
|
|
//
|
|
// * Redistributions of source code must retain the above copyright
|
|
// notice, this list of conditions and the following disclaimer.
|
|
// * Redistributions in binary form must reproduce the above
|
|
// copyright notice, this list of conditions and the following
|
|
// disclaimer in the documentation and/or other materials provided
|
|
// with the distribution.
|
|
// * Neither the name of Google Inc. nor the names of its
|
|
// contributors may be used to endorse or promote products derived
|
|
// from this software without specific prior written permission.
|
|
//
|
|
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
// Tests from http://blog.stevenlevithan.com/archives/npcg-javascript
|
|
|
|
assertEquals(true, /(x)?\1y/.test("y"));
|
|
assertEquals(["y", undefined], /(x)?\1y/.exec("y"));
|
|
assertEquals(["y", undefined], /(x)?y/.exec("y"));
|
|
assertEquals(["y", undefined], "y".match(/(x)?\1y/));
|
|
assertEquals(["y", undefined], "y".match(/(x)?y/));
|
|
assertEquals(["y"], "y".match(/(x)?\1y/g));
|
|
assertEquals(["", undefined, ""], "y".split(/(x)?\1y/));
|
|
assertEquals(["", undefined, ""], "y".split(/(x)?y/));
|
|
assertEquals(0, "y".search(/(x)?\1y/));
|
|
assertEquals("z", "y".replace(/(x)?\1y/, "z"));
|
|
assertEquals("", "y".replace(/(x)?y/, "$1"));
|
|
assertEquals("undefined", "y".replace(/(x)?\1y/,
|
|
function($0, $1){
|
|
return String($1);
|
|
}));
|
|
assertEquals("undefined", "y".replace(/(x)?y/,
|
|
function($0, $1){
|
|
return String($1);
|
|
}));
|
|
assertEquals("undefined", "y".replace(/(x)?y/,
|
|
function($0, $1){
|
|
return $1;
|
|
}));
|