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Edit File: string-replace.js
// 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. /** * @fileoverview Test String.prototype.replace */ function replaceTest(result, subject, pattern, replacement) { var name = "\"" + subject + "\".replace(" + pattern + ", " + replacement + ")"; assertEquals(result, subject.replace(pattern, replacement), name); } var short = "xaxbxcx"; replaceTest("axbxcx", short, "x", ""); replaceTest("axbxcx", short, /x/, ""); replaceTest("abc", short, /x/g, ""); replaceTest("xaxxcx", short, "b", ""); replaceTest("xaxxcx", short, /b/, ""); replaceTest("xaxxcx", short, /b/g, ""); replaceTest("[]axbxcx", short, "x", "[]"); replaceTest("[]axbxcx", short, /x/, "[]"); replaceTest("[]a[]b[]c[]", short, /x/g, "[]"); replaceTest("xax[]xcx", short, "b", "[]"); replaceTest("xax[]xcx", short, /b/, "[]"); replaceTest("xax[]xcx", short, /b/g, "[]"); replaceTest("[$]axbxcx", short, "x", "[$$]"); replaceTest("[$]axbxcx", short, /x/, "[$$]"); replaceTest("[$]a[$]b[$]c[$]", short, /x/g, "[$$]"); replaceTest("xax[$]xcx", short, "b", "[$$]"); replaceTest("xax[$]xcx", short, /b/, "[$$]"); replaceTest("xax[$]xcx", short, /b/g, "[$$]"); replaceTest("[]axbxcx", short, "x", "[$`]"); replaceTest("[]axbxcx", short, /x/, "[$`]"); replaceTest("[]a[xa]b[xaxb]c[xaxbxc]", short, /x/g, "[$`]"); replaceTest("xax[xax]xcx", short, "b", "[$`]"); replaceTest("xax[xax]xcx", short, /b/, "[$`]"); replaceTest("xax[xax]xcx", short, /b/g, "[$`]"); replaceTest("[x]axbxcx", short, "x", "[$&]"); replaceTest("[x]axbxcx", short, /x/, "[$&]"); replaceTest("[x]a[x]b[x]c[x]", short, /x/g, "[$&]"); replaceTest("xax[b]xcx", short, "b", "[$&]"); replaceTest("xax[b]xcx", short, /b/, "[$&]"); replaceTest("xax[b]xcx", short, /b/g, "[$&]"); replaceTest("[axbxcx]axbxcx", short, "x", "[$']"); replaceTest("[axbxcx]axbxcx", short, /x/, "[$']"); replaceTest("[axbxcx]a[bxcx]b[cx]c[]", short, /x/g, "[$']"); replaceTest("xax[xcx]xcx", short, "b", "[$']"); replaceTest("xax[xcx]xcx", short, /b/, "[$']"); replaceTest("xax[xcx]xcx", short, /b/g, "[$']"); replaceTest("[$1]axbxcx", short, "x", "[$1]"); replaceTest("[$1]axbxcx", short, /x/, "[$1]"); replaceTest("[]axbxcx", short, /x()/, "[$1]"); replaceTest("[$1]a[$1]b[$1]c[$1]", short, /x/g, "[$1]"); replaceTest("[]a[]b[]c[]", short, /x()/g, "[$1]"); replaceTest("xax[$1]xcx", short, "b", "[$1]"); replaceTest("xax[$1]xcx", short, /b/, "[$1]"); replaceTest("xax[]xcx", short, /b()/, "[$1]"); replaceTest("xax[$1]xcx", short, /b/g, "[$1]"); replaceTest("xax[]xcx", short, /b()/g, "[$1]"); // Bug 317 look-alikes. If "$e" has no meaning, the "$" must be retained. replaceTest("xax$excx", short, "b", "$e"); replaceTest("xax$excx", short, /b/, "$e"); replaceTest("xax$excx", short, /b/g, "$e"); replaceTest("xaxe$xcx", short, "b", "e$"); replaceTest("xaxe$xcx", short, /b/, "e$"); replaceTest("xaxe$xcx", short, /b/g, "e$"); replaceTest("[$$$1$$a1abb1bb0$002$3$03][$$$1$$b1bcc1cc0$002$3$03]c", "abc", /(.)(?=(.))/g, "[$$$$$$1$$$$$11$01$2$21$02$020$002$3$03]"); // Replace with functions. var ctr = 0; replaceTest("0axbxcx", short, "x", function r(m, i, s) { assertEquals(3, arguments.length, "replace('x',func) func-args"); assertEquals("x", m, "replace('x',func(m,..))"); assertEquals(0, i, "replace('x',func(..,i,..))"); assertEquals(short, s, "replace('x',func(..,s))"); return String(ctr++); }); assertEquals(1, ctr, "replace('x',func) num-match"); ctr = 0; replaceTest("0axbxcx", short, /x/, function r(m, i, s) { assertEquals(3, arguments.length, "replace(/x/,func) func-args"); assertEquals("x", m, "replace(/x/,func(m,..))"); assertEquals(0, i, "replace(/x/,func(..,i,..))"); assertEquals(short, s, "replace(/x/,func(..,s))"); return String(ctr++); }); assertEquals(1, ctr, "replace(/x/,func) num-match"); ctr = 0; replaceTest("0a1b2c3", short, /x/g, function r(m, i, s) { assertEquals(3, arguments.length, "replace(/x/g,func) func-args"); assertEquals("x", m, "replace(/x/g,func(m,..))"); assertEquals(ctr * 2, i, "replace(/x/g,func(..,i,.))"); assertEquals(short, s, "replace(/x/g,func(..,s))"); return String(ctr++); }); assertEquals(4, ctr, "replace(/x/g,func) num-match"); ctr = 0; replaceTest("0a1b2cx", short, /(x)(?=(.))/g, function r(m, c1, c2, i, s) { assertEquals(5, arguments.length, "replace(/(x)(?=(.))/g,func) func-args"); assertEquals("x", m, "replace(/(x)(?=(.))/g,func(m,..))"); assertEquals("x", c1, "replace(/(x)(?=(.))/g,func(..,c1,..))"); assertEquals(["a","b","c"][ctr], c2, "replace(/(x)(?=(.))/g,func(..,c2,..))"); assertEquals(ctr * 2, i, "replace(/(x)(?=(.))/g,func(..,i,..))"); assertEquals(short, s, "replace(/(x)(?=(.))/g,func(..,s))"); return String(ctr++); }); assertEquals(3, ctr, "replace(/x/g,func) num-match"); // Test special cases of replacement parts longer than 1<<11. var longstring = "xyzzy"; longstring = longstring + longstring; longstring = longstring + longstring; longstring = longstring + longstring; longstring = longstring + longstring; longstring = longstring + longstring; longstring = longstring + longstring; longstring = longstring + longstring; longstring = longstring + longstring; longstring = longstring + longstring; longstring = longstring + longstring; longstring = longstring + longstring; // longstring.length == 5 << 11 replaceTest(longstring + longstring, "<" + longstring + ">", /<(.*)>/g, "$1$1"); replaceTest("string 42", "string x", /x/g, function() { return 42; }); replaceTest("string 42", "string x", /x/, function() { return 42; }); replaceTest("string 42", "string x", /[xy]/g, function() { return 42; }); replaceTest("string 42", "string x", /[xy]/, function() { return 42; }); replaceTest("string true", "string x", /x/g, function() { return true; }); replaceTest("string null", "string x", /x/g, function() { return null; }); replaceTest("string undefined", "string x", /x/g, function() { return undefined; }); replaceTest("aundefinedbundefinedcundefined", "abc", /(.)|(.)/g, function(m, m1, m2, i, s) { return m1+m2; }); // Test nested calls to replace, including that it sets RegExp.$& correctly. function replacer(m,i,s) { assertEquals(m,RegExp['$&']); return "[" + RegExp['$&'] + "-" + m.replace(/./g,"$&$&") + "-" + m.replace(/./g,function() { return RegExp['$&']; }) + "-" + RegExp['$&'] + "]"; } replaceTest("[ab-aabb-ab-b][az-aazz-az-z]", "abaz", /a./g, replacer); replaceTest("[ab-aabb-ab-b][az-aazz-az-z]", "abaz", /a(.)/g, replacer); var str = 'She sells seashells by the seashore.'; var re = /sh/g; assertEquals('She sells sea$schells by the sea$schore.', str.replace(re,"$$" + 'sch'))