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sourceRevisionAtLastExport: 33f2fb0e53d135f0ee17cfccd9d993eb2a6f47de targetRevisionAtLastExport: 31340cbd9add103f586d501b0c3354b7b182abc0
299 lines
10 KiB
JavaScript
299 lines
10 KiB
JavaScript
// Copyright 2009 the V8 project authors. All rights reserved.
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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 are
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// met:
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//
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// * 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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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// 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
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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/**
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* @fileoverview Test String.prototype.replace
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*/
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function replaceTest(result, subject, pattern, replacement) {
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var name =
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"\"" + subject + "\".replace(" + pattern + ", " + replacement + ")";
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assertEquals(result, subject.replace(pattern, replacement), name);
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}
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var short = "xaxbxcx";
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replaceTest("axbxcx", short, "x", "");
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replaceTest("axbxcx", short, /x/, "");
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replaceTest("abc", short, /x/g, "");
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replaceTest("xaxxcx", short, "b", "");
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replaceTest("xaxxcx", short, /b/, "");
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replaceTest("xaxxcx", short, /b/g, "");
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replaceTest("[]axbxcx", short, "x", "[]");
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replaceTest("[]axbxcx", short, /x/, "[]");
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replaceTest("[]a[]b[]c[]", short, /x/g, "[]");
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replaceTest("xax[]xcx", short, "b", "[]");
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replaceTest("xax[]xcx", short, /b/, "[]");
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replaceTest("xax[]xcx", short, /b/g, "[]");
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replaceTest("[$]axbxcx", short, "x", "[$$]");
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replaceTest("[$]axbxcx", short, /x/, "[$$]");
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replaceTest("[$]a[$]b[$]c[$]", short, /x/g, "[$$]");
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replaceTest("xax[$]xcx", short, "b", "[$$]");
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replaceTest("xax[$]xcx", short, /b/, "[$$]");
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replaceTest("xax[$]xcx", short, /b/g, "[$$]");
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replaceTest("[]axbxcx", short, "x", "[$`]");
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replaceTest("[]axbxcx", short, /x/, "[$`]");
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replaceTest("[]a[xa]b[xaxb]c[xaxbxc]", short, /x/g, "[$`]");
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replaceTest("xax[xax]xcx", short, "b", "[$`]");
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replaceTest("xax[xax]xcx", short, /b/, "[$`]");
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replaceTest("xax[xax]xcx", short, /b/g, "[$`]");
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replaceTest("[x]axbxcx", short, "x", "[$&]");
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replaceTest("[x]axbxcx", short, /x/, "[$&]");
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replaceTest("[x]a[x]b[x]c[x]", short, /x/g, "[$&]");
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replaceTest("xax[b]xcx", short, "b", "[$&]");
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replaceTest("xax[b]xcx", short, /b/, "[$&]");
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replaceTest("xax[b]xcx", short, /b/g, "[$&]");
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replaceTest("[axbxcx]axbxcx", short, "x", "[$']");
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replaceTest("[axbxcx]axbxcx", short, /x/, "[$']");
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replaceTest("[axbxcx]a[bxcx]b[cx]c[]", short, /x/g, "[$']");
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replaceTest("xax[xcx]xcx", short, "b", "[$']");
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replaceTest("xax[xcx]xcx", short, /b/, "[$']");
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replaceTest("xax[xcx]xcx", short, /b/g, "[$']");
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replaceTest("[$1]axbxcx", short, "x", "[$1]");
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replaceTest("[$1]axbxcx", short, /x/, "[$1]");
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replaceTest("[]axbxcx", short, /x()/, "[$1]");
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replaceTest("[$1]a[$1]b[$1]c[$1]", short, /x/g, "[$1]");
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replaceTest("[]a[]b[]c[]", short, /x()/g, "[$1]");
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replaceTest("xax[$1]xcx", short, "b", "[$1]");
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replaceTest("xax[$1]xcx", short, /b/, "[$1]");
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replaceTest("xax[]xcx", short, /b()/, "[$1]");
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replaceTest("xax[$1]xcx", short, /b/g, "[$1]");
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replaceTest("xax[]xcx", short, /b()/g, "[$1]");
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// Bug 317 look-alikes. If "$e" has no meaning, the "$" must be retained.
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replaceTest("xax$excx", short, "b", "$e");
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replaceTest("xax$excx", short, /b/, "$e");
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replaceTest("xax$excx", short, /b/g, "$e");
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replaceTest("xaxe$xcx", short, "b", "e$");
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replaceTest("xaxe$xcx", short, /b/, "e$");
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replaceTest("xaxe$xcx", short, /b/g, "e$");
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replaceTest("[$$$1$$a1abb1bb0$002$3$03][$$$1$$b1bcc1cc0$002$3$03]c",
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"abc", /(.)(?=(.))/g, "[$$$$$$1$$$$$11$01$2$21$02$020$002$3$03]");
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// Replace with functions.
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var ctr = 0;
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replaceTest("0axbxcx", short, "x", function r(m, i, s) {
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assertEquals(3, arguments.length, "replace('x',func) func-args");
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assertEquals("x", m, "replace('x',func(m,..))");
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assertEquals(0, i, "replace('x',func(..,i,..))");
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assertEquals(short, s, "replace('x',func(..,s))");
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return String(ctr++);
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});
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assertEquals(1, ctr, "replace('x',func) num-match");
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ctr = 0;
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replaceTest("0axbxcx", short, /x/, function r(m, i, s) {
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assertEquals(3, arguments.length, "replace(/x/,func) func-args");
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assertEquals("x", m, "replace(/x/,func(m,..))");
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assertEquals(0, i, "replace(/x/,func(..,i,..))");
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assertEquals(short, s, "replace(/x/,func(..,s))");
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return String(ctr++);
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});
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assertEquals(1, ctr, "replace(/x/,func) num-match");
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ctr = 0;
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replaceTest("0a1b2c3", short, /x/g, function r(m, i, s) {
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assertEquals(3, arguments.length, "replace(/x/g,func) func-args");
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assertEquals("x", m, "replace(/x/g,func(m,..))");
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assertEquals(ctr * 2, i, "replace(/x/g,func(..,i,.))");
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assertEquals(short, s, "replace(/x/g,func(..,s))");
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return String(ctr++);
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});
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assertEquals(4, ctr, "replace(/x/g,func) num-match");
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ctr = 0;
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replaceTest("0a1b2cx", short, /(x)(?=(.))/g, function r(m, c1, c2, i, s) {
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assertEquals(5, arguments.length, "replace(/(x)(?=(.))/g,func) func-args");
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assertEquals("x", m, "replace(/(x)(?=(.))/g,func(m,..))");
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assertEquals("x", c1, "replace(/(x)(?=(.))/g,func(..,c1,..))");
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assertEquals(["a","b","c"][ctr], c2, "replace(/(x)(?=(.))/g,func(..,c2,..))");
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assertEquals(ctr * 2, i, "replace(/(x)(?=(.))/g,func(..,i,..))");
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assertEquals(short, s, "replace(/(x)(?=(.))/g,func(..,s))");
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return String(ctr++);
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});
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assertEquals(3, ctr, "replace(/x/g,func) num-match");
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replaceTest("ABCD", "abcd", /(.)/g, function r(m, c1, i, s) {
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assertEquals("d", RegExp.lastMatch);
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assertEquals("d", RegExp.$1);
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assertEquals("abc", RegExp.leftContext);
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return m.toUpperCase();
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});
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var long = "";
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while (long.length < 0x2000) {
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long += String.fromCharCode(65 + Math.random() * 26);
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}
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for (var i = 0; i < 3; i++) {
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replaceTest(long.toLowerCase(), long, /(..)/g, function r(m, c1, i, s) {
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var expected = long.substring(0x1ffe, 0x2000);
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assertEquals(expected, RegExp.lastMatch);
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assertEquals(expected, RegExp.$1);
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assertEquals(long.substring(0, 0x1ffe), RegExp.leftContext);
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return m.toLowerCase();
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});
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}
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// Test special cases of replacement parts longer than 1<<11.
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var longstring = "xyzzy";
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longstring = longstring + longstring;
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longstring = longstring + longstring;
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longstring = longstring + longstring;
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longstring = longstring + longstring;
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longstring = longstring + longstring;
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longstring = longstring + longstring;
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longstring = longstring + longstring;
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longstring = longstring + longstring;
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longstring = longstring + longstring;
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longstring = longstring + longstring;
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longstring = longstring + longstring;
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// longstring.length == 5 << 11
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replaceTest(longstring + longstring,
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"<" + longstring + ">", /<(.*)>/g, "$1$1");
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replaceTest("string 42", "string x", /x/g, function() { return 42; });
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replaceTest("string 42", "string x", /x/, function() { return 42; });
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replaceTest("string 42", "string x", /[xy]/g, function() { return 42; });
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replaceTest("string 42", "string x", /[xy]/, function() { return 42; });
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replaceTest("string true", "string x", /x/g, function() { return true; });
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replaceTest("string null", "string x", /x/g, function() { return null; });
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replaceTest("string undefined", "string x", /x/g, function() { return undefined; });
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replaceTest("aundefinedbundefinedcundefined",
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"abc", /(.)|(.)/g, function(m, m1, m2, i, s) { return m1+m2; });
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// Test nested calls to replace, including that it sets RegExp.$& correctly.
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var str = 'She sells seashells by the seashore.';
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var re = /sh/g;
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assertEquals('She sells sea$schells by the sea$schore.',
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str.replace(re,"$$" + 'sch'))
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var replace_obj = { length: 0, toString: function() { return "x"; }};
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assertEquals("axc", "abc".replace(/b/, replace_obj));
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assertEquals("axc", "abc".replace(/b/g, replace_obj));
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var search_obj = { length: 1, toString: function() { return "b"; }};
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assertEquals("axc", "abc".replace(search_obj, function() { return "x"; }));
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var side_effect_flag = false;
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var replace_obj_side_effects = {
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toString: function() { side_effect_flag = true; return "x" }
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}
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assertEquals("abc", "abc".replace(/z/g, replace_obj_side_effects));
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assertTrue(side_effect_flag); // Side effect triggers even without a match.
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var regexp99pattern = "";
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var subject = "";
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for (var i = 0; i < 99; i++) {
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regexp99pattern += "(.)";
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subject += String.fromCharCode(i + 24);
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}
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function testIndices99(re) {
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// Test $1 .. $99
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for (var i = 1; i < 100; i++) {
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assertEquals(String.fromCharCode(i + 23),
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subject.replace(re, "$" + i));
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}
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// Test $01 .. $09
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for (var i = 1; i < 10; i++) {
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assertEquals(String.fromCharCode(i + 23),
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subject.replace(re, "$0" + i));
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}
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assertEquals("$0", subject.replace(re, "$0"));
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assertEquals("$00", subject.replace(re, "$00"));
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assertEquals(String.fromCharCode(10 + 23) + "0",
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subject.replace(re, "$100"));
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}
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testIndices99(new RegExp(regexp99pattern));
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testIndices99(new RegExp(regexp99pattern, "g"));
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var regexp59pattern = "";
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for (var i = 0; i < 59; i++) regexp59pattern += "(.)";
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function testIndices59(re) {
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// Test $60 .. $99. Captures reach up to 59. Per spec, how to deal
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// with this is implementation-dependent. We interpret $60 as $6
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// followed by "0", $61 as $6, followed by "1" and so on.
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var tail = subject.substr(59);
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for (var i = 60; i < 100; i++) {
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assertEquals(String.fromCharCode(i / 10 + 23) + (i % 10) + tail,
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subject.replace(re, "$" + i));
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}
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}
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testIndices59(new RegExp(regexp59pattern));
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testIndices59(new RegExp(regexp59pattern, "g"));
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// Test that ToString(replace) is called.
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let replace_tostring_count = 0;
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const fake_replacer = {
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[Symbol.toPrimitive]: () => { replace_tostring_count++; return "b"; }
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};
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"a".replace("x", fake_replacer);
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assertEquals(1, replace_tostring_count);
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"a".replace("a", fake_replacer);
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assertEquals(2, replace_tostring_count);
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