JezK
Edit File: regexp-indexof.js
// Copyright 2008 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. function CheckMatch(re, str, matches) { assertEquals(matches.length > 0, re.test(str)); var result = str.match(re); if (matches.length > 0) { assertEquals(matches.length, result.length); var lastExpected; var lastFrom; var lastLength; for (var idx = 0; idx < matches.length; idx++) { var from = matches[idx][0]; var length = matches[idx][1]; var expected = str.substr(from, length); var name = str + "[" + from + ".." + (from+length) + "]"; assertEquals(expected, result[idx], name); if (re.global || idx == 0) { lastExpected = expected; lastFrom = from; lastLength = length; } } assertEquals(lastExpected, RegExp.lastMatch, "lastMatch"); assertEquals(str.substr(0, lastFrom), RegExp.leftContext, "leftContext"); assertEquals( str.substr(lastFrom + lastLength), RegExp.rightContext, "rightContext"); } else { assertTrue(result === null); } } CheckMatch(/abc/, "xxxabcxxxabcxxx", [[3, 3]]); CheckMatch(/abc/g, "xxxabcxxxabcxxx", [[3, 3], [9, 3]]); CheckMatch(/abc/, "xxxabababcxxxabcxxx", [[7, 3]]); CheckMatch(/abc/g, "abcabcabc", [[0, 3], [3, 3], [6, 3]]); CheckMatch(/aba/g, "ababababa", [[0, 3], [4, 3]]); CheckMatch(/foo/g, "ofooofoooofofooofo", [[1, 3], [5, 3], [12, 3]]); CheckMatch(/foobarbaz/, "xx", []); CheckMatch(new RegExp(""), "xxx", [[0, 0]]); CheckMatch(/abc/, "abababa", []); assertEquals("xxxdefxxxdefxxx", "xxxabcxxxabcxxx".replace(/abc/g, "def")); assertEquals("o-o-oofo-ofo", "ofooofoooofofooofo".replace(/foo/g, "-")); assertEquals("deded", "deded".replace(/x/g, "-")); assertEquals("-a-b-c-d-e-f-", "abcdef".replace(new RegExp("", "g"), "-")); CheckMatch(/a(.)/, "xyzzyabxyzzzyacxyzzy", [[5, 2], [6, 1]]); CheckMatch(/a(.)/g, "xyzzyabxyzzyacxyzzy", [[5, 2], [12, 2]]); CheckMatch(/a|(?:)/g, "aba", [[0, 1], [1, 0], [2, 1], [3, 0]]); CheckMatch(/a|(?:)/g, "baba", [[0, 0], [1, 1], [2, 0], [3, 1], [4, 0]]); CheckMatch(/a|(?:)/g, "bab", [[0, 0], [1, 1], [2, 0], [3, 0]]);