Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1 | // Copyright 2009 the V8 project authors. All rights reserved. |
| 2 | // Redistribution and use in source and binary forms, with or without |
| 3 | // modification, are permitted provided that the following conditions are |
| 4 | // met: |
| 5 | // |
| 6 | // * Redistributions of source code must retain the above copyright |
| 7 | // notice, this list of conditions and the following disclaimer. |
| 8 | // * Redistributions in binary form must reproduce the above |
| 9 | // copyright notice, this list of conditions and the following |
| 10 | // disclaimer in the documentation and/or other materials provided |
| 11 | // with the distribution. |
| 12 | // * Neither the name of Google Inc. nor the names of its |
| 13 | // contributors may be used to endorse or promote products derived |
| 14 | // from this software without specific prior written permission. |
| 15 | // |
| 16 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 17 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 18 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 19 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 20 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 21 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 22 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 26 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | |
| 28 | /** |
| 29 | * @fileoverview Test String.prototype.replace |
| 30 | */ |
| 31 | |
| 32 | function replaceTest(result, subject, pattern, replacement) { |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 33 | var name = |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 34 | "\"" + subject + "\".replace(" + pattern + ", " + replacement + ")"; |
| 35 | assertEquals(result, subject.replace(pattern, replacement), name); |
| 36 | } |
| 37 | |
| 38 | |
| 39 | var short = "xaxbxcx"; |
| 40 | |
| 41 | replaceTest("axbxcx", short, "x", ""); |
| 42 | replaceTest("axbxcx", short, /x/, ""); |
| 43 | replaceTest("abc", short, /x/g, ""); |
| 44 | |
| 45 | replaceTest("xaxxcx", short, "b", ""); |
| 46 | replaceTest("xaxxcx", short, /b/, ""); |
| 47 | replaceTest("xaxxcx", short, /b/g, ""); |
| 48 | |
| 49 | |
| 50 | replaceTest("[]axbxcx", short, "x", "[]"); |
| 51 | replaceTest("[]axbxcx", short, /x/, "[]"); |
| 52 | replaceTest("[]a[]b[]c[]", short, /x/g, "[]"); |
| 53 | |
| 54 | replaceTest("xax[]xcx", short, "b", "[]"); |
| 55 | replaceTest("xax[]xcx", short, /b/, "[]"); |
| 56 | replaceTest("xax[]xcx", short, /b/g, "[]"); |
| 57 | |
| 58 | |
| 59 | replaceTest("[$]axbxcx", short, "x", "[$$]"); |
| 60 | replaceTest("[$]axbxcx", short, /x/, "[$$]"); |
| 61 | replaceTest("[$]a[$]b[$]c[$]", short, /x/g, "[$$]"); |
| 62 | |
| 63 | replaceTest("xax[$]xcx", short, "b", "[$$]"); |
| 64 | replaceTest("xax[$]xcx", short, /b/, "[$$]"); |
| 65 | replaceTest("xax[$]xcx", short, /b/g, "[$$]"); |
| 66 | |
| 67 | |
| 68 | replaceTest("[]axbxcx", short, "x", "[$`]"); |
| 69 | replaceTest("[]axbxcx", short, /x/, "[$`]"); |
| 70 | replaceTest("[]a[xa]b[xaxb]c[xaxbxc]", short, /x/g, "[$`]"); |
| 71 | |
| 72 | replaceTest("xax[xax]xcx", short, "b", "[$`]"); |
| 73 | replaceTest("xax[xax]xcx", short, /b/, "[$`]"); |
| 74 | replaceTest("xax[xax]xcx", short, /b/g, "[$`]"); |
| 75 | |
| 76 | |
| 77 | replaceTest("[x]axbxcx", short, "x", "[$&]"); |
| 78 | replaceTest("[x]axbxcx", short, /x/, "[$&]"); |
| 79 | replaceTest("[x]a[x]b[x]c[x]", short, /x/g, "[$&]"); |
| 80 | |
| 81 | replaceTest("xax[b]xcx", short, "b", "[$&]"); |
| 82 | replaceTest("xax[b]xcx", short, /b/, "[$&]"); |
| 83 | replaceTest("xax[b]xcx", short, /b/g, "[$&]"); |
| 84 | |
| 85 | |
| 86 | replaceTest("[axbxcx]axbxcx", short, "x", "[$']"); |
| 87 | replaceTest("[axbxcx]axbxcx", short, /x/, "[$']"); |
| 88 | replaceTest("[axbxcx]a[bxcx]b[cx]c[]", short, /x/g, "[$']"); |
| 89 | |
| 90 | replaceTest("xax[xcx]xcx", short, "b", "[$']"); |
| 91 | replaceTest("xax[xcx]xcx", short, /b/, "[$']"); |
| 92 | replaceTest("xax[xcx]xcx", short, /b/g, "[$']"); |
| 93 | |
| 94 | |
| 95 | replaceTest("[$1]axbxcx", short, "x", "[$1]"); |
| 96 | replaceTest("[$1]axbxcx", short, /x/, "[$1]"); |
| 97 | replaceTest("[]axbxcx", short, /x()/, "[$1]"); |
| 98 | replaceTest("[$1]a[$1]b[$1]c[$1]", short, /x/g, "[$1]"); |
| 99 | replaceTest("[]a[]b[]c[]", short, /x()/g, "[$1]"); |
| 100 | |
| 101 | replaceTest("xax[$1]xcx", short, "b", "[$1]"); |
| 102 | replaceTest("xax[$1]xcx", short, /b/, "[$1]"); |
| 103 | replaceTest("xax[]xcx", short, /b()/, "[$1]"); |
| 104 | replaceTest("xax[$1]xcx", short, /b/g, "[$1]"); |
| 105 | replaceTest("xax[]xcx", short, /b()/g, "[$1]"); |
| 106 | |
| 107 | // Bug 317 look-alikes. If "$e" has no meaning, the "$" must be retained. |
| 108 | replaceTest("xax$excx", short, "b", "$e"); |
| 109 | replaceTest("xax$excx", short, /b/, "$e"); |
| 110 | replaceTest("xax$excx", short, /b/g, "$e"); |
| 111 | |
| 112 | replaceTest("xaxe$xcx", short, "b", "e$"); |
| 113 | replaceTest("xaxe$xcx", short, /b/, "e$"); |
| 114 | replaceTest("xaxe$xcx", short, /b/g, "e$"); |
| 115 | |
| 116 | |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 117 | replaceTest("[$$$1$$a1abb1bb0$002$3$03][$$$1$$b1bcc1cc0$002$3$03]c", |
| 118 | "abc", /(.)(?=(.))/g, "[$$$$$$1$$$$$11$01$2$21$02$020$002$3$03]"); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 119 | |
| 120 | // Replace with functions. |
| 121 | |
| 122 | |
| 123 | var ctr = 0; |
| 124 | replaceTest("0axbxcx", short, "x", function r(m, i, s) { |
| 125 | assertEquals(3, arguments.length, "replace('x',func) func-args"); |
| 126 | assertEquals("x", m, "replace('x',func(m,..))"); |
| 127 | assertEquals(0, i, "replace('x',func(..,i,..))"); |
| 128 | assertEquals(short, s, "replace('x',func(..,s))"); |
| 129 | return String(ctr++); |
| 130 | }); |
| 131 | assertEquals(1, ctr, "replace('x',func) num-match"); |
| 132 | |
| 133 | ctr = 0; |
| 134 | replaceTest("0axbxcx", short, /x/, function r(m, i, s) { |
| 135 | assertEquals(3, arguments.length, "replace(/x/,func) func-args"); |
| 136 | assertEquals("x", m, "replace(/x/,func(m,..))"); |
| 137 | assertEquals(0, i, "replace(/x/,func(..,i,..))"); |
| 138 | assertEquals(short, s, "replace(/x/,func(..,s))"); |
| 139 | return String(ctr++); |
| 140 | }); |
| 141 | assertEquals(1, ctr, "replace(/x/,func) num-match"); |
| 142 | |
| 143 | ctr = 0; |
| 144 | replaceTest("0a1b2c3", short, /x/g, function r(m, i, s) { |
| 145 | assertEquals(3, arguments.length, "replace(/x/g,func) func-args"); |
| 146 | assertEquals("x", m, "replace(/x/g,func(m,..))"); |
| 147 | assertEquals(ctr * 2, i, "replace(/x/g,func(..,i,.))"); |
| 148 | assertEquals(short, s, "replace(/x/g,func(..,s))"); |
| 149 | return String(ctr++); |
| 150 | }); |
| 151 | assertEquals(4, ctr, "replace(/x/g,func) num-match"); |
| 152 | |
| 153 | ctr = 0; |
| 154 | replaceTest("0a1b2cx", short, /(x)(?=(.))/g, function r(m, c1, c2, i, s) { |
| 155 | assertEquals(5, arguments.length, "replace(/(x)(?=(.))/g,func) func-args"); |
| 156 | assertEquals("x", m, "replace(/(x)(?=(.))/g,func(m,..))"); |
| 157 | assertEquals("x", c1, "replace(/(x)(?=(.))/g,func(..,c1,..))"); |
| 158 | assertEquals(["a","b","c"][ctr], c2, "replace(/(x)(?=(.))/g,func(..,c2,..))"); |
| 159 | assertEquals(ctr * 2, i, "replace(/(x)(?=(.))/g,func(..,i,..))"); |
| 160 | assertEquals(short, s, "replace(/(x)(?=(.))/g,func(..,s))"); |
| 161 | return String(ctr++); |
| 162 | }); |
| 163 | assertEquals(3, ctr, "replace(/x/g,func) num-match"); |
| 164 | |
| 165 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 166 | replaceTest("ABCD", "abcd", /(.)/g, function r(m, c1, i, s) { |
| 167 | assertEquals("d", RegExp.lastMatch); |
| 168 | assertEquals("d", RegExp.$1); |
| 169 | assertEquals("abc", RegExp.leftContext); |
| 170 | return m.toUpperCase(); |
| 171 | }); |
| 172 | |
| 173 | |
| 174 | var long = ""; |
| 175 | while (long.length < 0x2000) { |
| 176 | long += String.fromCharCode(65 + Math.random() * 26); |
| 177 | } |
| 178 | |
| 179 | for (var i = 0; i < 3; i++) { |
| 180 | replaceTest(long.toLowerCase(), long, /(..)/g, function r(m, c1, i, s) { |
| 181 | var expected = long.substring(0x1ffe, 0x2000); |
| 182 | assertEquals(expected, RegExp.lastMatch); |
| 183 | assertEquals(expected, RegExp.$1); |
| 184 | assertEquals(long.substring(0, 0x1ffe), RegExp.leftContext); |
| 185 | return m.toLowerCase(); |
| 186 | }); |
| 187 | } |
| 188 | |
| 189 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 190 | // Test special cases of replacement parts longer than 1<<11. |
| 191 | var longstring = "xyzzy"; |
| 192 | longstring = longstring + longstring; |
| 193 | longstring = longstring + longstring; |
| 194 | longstring = longstring + longstring; |
| 195 | longstring = longstring + longstring; |
| 196 | longstring = longstring + longstring; |
| 197 | longstring = longstring + longstring; |
| 198 | longstring = longstring + longstring; |
| 199 | longstring = longstring + longstring; |
| 200 | longstring = longstring + longstring; |
| 201 | longstring = longstring + longstring; |
| 202 | longstring = longstring + longstring; |
| 203 | // longstring.length == 5 << 11 |
| 204 | |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 205 | replaceTest(longstring + longstring, |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 206 | "<" + longstring + ">", /<(.*)>/g, "$1$1"); |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 207 | |
| 208 | replaceTest("string 42", "string x", /x/g, function() { return 42; }); |
| 209 | replaceTest("string 42", "string x", /x/, function() { return 42; }); |
| 210 | replaceTest("string 42", "string x", /[xy]/g, function() { return 42; }); |
| 211 | replaceTest("string 42", "string x", /[xy]/, function() { return 42; }); |
| 212 | replaceTest("string true", "string x", /x/g, function() { return true; }); |
| 213 | replaceTest("string null", "string x", /x/g, function() { return null; }); |
| 214 | replaceTest("string undefined", "string x", /x/g, function() { return undefined; }); |
| 215 | |
| 216 | replaceTest("aundefinedbundefinedcundefined", |
| 217 | "abc", /(.)|(.)/g, function(m, m1, m2, i, s) { return m1+m2; }); |
| 218 | |
| 219 | // Test nested calls to replace, including that it sets RegExp.$& correctly. |
| 220 | |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame] | 221 | var str = 'She sells seashells by the seashore.'; |
| 222 | var re = /sh/g; |
| 223 | assertEquals('She sells sea$schells by the sea$schore.', |
| 224 | str.replace(re,"$$" + 'sch')) |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 225 | |
| 226 | |
| 227 | var replace_obj = { length: 0, toString: function() { return "x"; }}; |
| 228 | assertEquals("axc", "abc".replace(/b/, replace_obj)); |
| 229 | assertEquals("axc", "abc".replace(/b/g, replace_obj)); |
| 230 | |
| 231 | var search_obj = { length: 1, toString: function() { return "b"; }}; |
| 232 | assertEquals("axc", "abc".replace(search_obj, function() { return "x"; })); |
| 233 | |
| 234 | var side_effect_flag = false; |
| 235 | var replace_obj_side_effects = { |
| 236 | toString: function() { side_effect_flag = true; return "x" } |
| 237 | } |
| 238 | assertEquals("abc", "abc".replace(/z/g, replace_obj_side_effects)); |
| 239 | assertTrue(side_effect_flag); // Side effect triggers even without a match. |
| 240 | |
| 241 | var regexp99pattern = ""; |
| 242 | var subject = ""; |
| 243 | for (var i = 0; i < 99; i++) { |
| 244 | regexp99pattern += "(.)"; |
| 245 | subject += String.fromCharCode(i + 24); |
| 246 | } |
| 247 | |
| 248 | function testIndices99(re) { |
| 249 | // Test $1 .. $99 |
| 250 | for (var i = 1; i < 100; i++) { |
| 251 | assertEquals(String.fromCharCode(i + 23), |
| 252 | subject.replace(re, "$" + i)); |
| 253 | } |
| 254 | |
| 255 | // Test $01 .. $09 |
| 256 | for (var i = 1; i < 10; i++) { |
| 257 | assertEquals(String.fromCharCode(i + 23), |
| 258 | subject.replace(re, "$0" + i)); |
| 259 | } |
| 260 | |
| 261 | assertEquals("$0", subject.replace(re, "$0")); |
| 262 | assertEquals("$00", subject.replace(re, "$00")); |
| 263 | assertEquals(String.fromCharCode(10 + 23) + "0", |
| 264 | subject.replace(re, "$100")); |
| 265 | } |
| 266 | |
| 267 | testIndices99(new RegExp(regexp99pattern)); |
| 268 | testIndices99(new RegExp(regexp99pattern, "g")); |
| 269 | |
| 270 | var regexp59pattern = ""; |
| 271 | for (var i = 0; i < 59; i++) regexp59pattern += "(.)"; |
| 272 | |
| 273 | function testIndices59(re) { |
| 274 | // Test $60 .. $99. Captures reach up to 59. Per spec, how to deal |
| 275 | // with this is implementation-dependent. We interpret $60 as $6 |
| 276 | // followed by "0", $61 as $6, followed by "1" and so on. |
| 277 | var tail = subject.substr(59); |
| 278 | for (var i = 60; i < 100; i++) { |
| 279 | assertEquals(String.fromCharCode(i / 10 + 23) + (i % 10) + tail, |
| 280 | subject.replace(re, "$" + i)); |
| 281 | } |
| 282 | } |
| 283 | |
| 284 | testIndices59(new RegExp(regexp59pattern)); |
| 285 | testIndices59(new RegExp(regexp59pattern, "g")); |