mstarzinger@chromium.org | 3233d2f | 2012-03-14 11:16:03 +0000 | [diff] [blame] | 1 | // Copyright 2012 the V8 project authors. All rights reserved. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 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 | // This file relies on the fact that the following declaration has been made |
| 30 | // in runtime.js: |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 31 | // var $String = global.String; |
| 32 | // var $NaN = 0/0; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 33 | |
| 34 | |
| 35 | // Set the String function and constructor. |
| 36 | %SetCode($String, function(x) { |
fschneider@chromium.org | b95b98b | 2010-02-23 10:34:29 +0000 | [diff] [blame] | 37 | var value = %_ArgumentsLength() == 0 ? '' : TO_STRING_INLINE(x); |
kasperl@chromium.org | 2abc450 | 2009-07-02 07:00:29 +0000 | [diff] [blame] | 38 | if (%_IsConstructCall()) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 39 | %_SetValueOf(this, value); |
| 40 | } else { |
| 41 | return value; |
| 42 | } |
| 43 | }); |
| 44 | |
| 45 | %FunctionSetPrototype($String, new $String()); |
| 46 | |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 47 | // ECMA-262 section 15.5.4.2 |
| 48 | function StringToString() { |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 49 | if (!IS_STRING(this) && !IS_STRING_WRAPPER(this)) { |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 50 | throw new $TypeError('String.prototype.toString is not generic'); |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 51 | } |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 52 | return %_ValueOf(this); |
| 53 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 54 | |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 55 | |
| 56 | // ECMA-262 section 15.5.4.3 |
| 57 | function StringValueOf() { |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 58 | if (!IS_STRING(this) && !IS_STRING_WRAPPER(this)) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 59 | throw new $TypeError('String.prototype.valueOf is not generic'); |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 60 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 61 | return %_ValueOf(this); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 62 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 63 | |
| 64 | |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 65 | // ECMA-262, section 15.5.4.4 |
| 66 | function StringCharAt(pos) { |
lrn@chromium.org | 1c09276 | 2011-05-09 09:42:16 +0000 | [diff] [blame] | 67 | if (IS_NULL_OR_UNDEFINED(this) && !IS_UNDETECTABLE(this)) { |
| 68 | throw MakeTypeError("called_on_null_or_undefined", |
| 69 | ["String.prototype.charAt"]); |
| 70 | } |
ricow@chromium.org | 30ce411 | 2010-05-31 10:38:25 +0000 | [diff] [blame] | 71 | var result = %_StringCharAt(this, pos); |
| 72 | if (%_IsSmi(result)) { |
| 73 | result = %_StringCharAt(TO_STRING_INLINE(this), TO_INTEGER(pos)); |
ager@chromium.org | 381abbb | 2009-02-25 13:23:22 +0000 | [diff] [blame] | 74 | } |
ricow@chromium.org | 30ce411 | 2010-05-31 10:38:25 +0000 | [diff] [blame] | 75 | return result; |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 76 | } |
| 77 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 78 | |
| 79 | // ECMA-262 section 15.5.4.5 |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 80 | function StringCharCodeAt(pos) { |
lrn@chromium.org | 1c09276 | 2011-05-09 09:42:16 +0000 | [diff] [blame] | 81 | if (IS_NULL_OR_UNDEFINED(this) && !IS_UNDETECTABLE(this)) { |
| 82 | throw MakeTypeError("called_on_null_or_undefined", |
| 83 | ["String.prototype.charCodeAt"]); |
| 84 | } |
ricow@chromium.org | 30ce411 | 2010-05-31 10:38:25 +0000 | [diff] [blame] | 85 | var result = %_StringCharCodeAt(this, pos); |
| 86 | if (!%_IsSmi(result)) { |
| 87 | result = %_StringCharCodeAt(TO_STRING_INLINE(this), TO_INTEGER(pos)); |
kasper.lund | 7276f14 | 2008-07-30 08:49:36 +0000 | [diff] [blame] | 88 | } |
ricow@chromium.org | 30ce411 | 2010-05-31 10:38:25 +0000 | [diff] [blame] | 89 | return result; |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 90 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 91 | |
| 92 | |
| 93 | // ECMA-262, section 15.5.4.6 |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 94 | function StringConcat() { |
lrn@chromium.org | 1c09276 | 2011-05-09 09:42:16 +0000 | [diff] [blame] | 95 | if (IS_NULL_OR_UNDEFINED(this) && !IS_UNDETECTABLE(this)) { |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 96 | throw MakeTypeError("called_on_null_or_undefined", |
| 97 | ["String.prototype.concat"]); |
lrn@chromium.org | 1c09276 | 2011-05-09 09:42:16 +0000 | [diff] [blame] | 98 | } |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 99 | var len = %_ArgumentsLength(); |
fschneider@chromium.org | b95b98b | 2010-02-23 10:34:29 +0000 | [diff] [blame] | 100 | var this_as_string = TO_STRING_INLINE(this); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 101 | if (len === 1) { |
| 102 | return this_as_string + %_Arguments(0); |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 103 | } |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 104 | var parts = new InternalArray(len + 1); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 105 | parts[0] = this_as_string; |
| 106 | for (var i = 0; i < len; i++) { |
| 107 | var part = %_Arguments(i); |
fschneider@chromium.org | b95b98b | 2010-02-23 10:34:29 +0000 | [diff] [blame] | 108 | parts[i + 1] = TO_STRING_INLINE(part); |
ager@chromium.org | 5c83825 | 2010-02-19 08:53:10 +0000 | [diff] [blame] | 109 | } |
| 110 | return %StringBuilderConcat(parts, len + 1, ""); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 111 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 112 | |
| 113 | // Match ES3 and Safari |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 114 | %FunctionSetLength(StringConcat, 1); |
| 115 | |
| 116 | |
| 117 | // ECMA-262 section 15.5.4.7 |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 118 | function StringIndexOf(pattern /* position */) { // length == 1 |
lrn@chromium.org | 1c09276 | 2011-05-09 09:42:16 +0000 | [diff] [blame] | 119 | if (IS_NULL_OR_UNDEFINED(this) && !IS_UNDETECTABLE(this)) { |
| 120 | throw MakeTypeError("called_on_null_or_undefined", |
| 121 | ["String.prototype.indexOf"]); |
| 122 | } |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 123 | var subject = TO_STRING_INLINE(this); |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 124 | pattern = TO_STRING_INLINE(pattern); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 125 | var index = 0; |
| 126 | if (%_ArgumentsLength() > 1) { |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 127 | index = %_Arguments(1); // position |
| 128 | index = TO_INTEGER(index); |
| 129 | if (index < 0) index = 0; |
| 130 | if (index > subject.length) index = subject.length; |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 131 | } |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 132 | return %StringIndexOf(subject, pattern, index); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 133 | } |
| 134 | |
| 135 | |
| 136 | // ECMA-262 section 15.5.4.8 |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 137 | function StringLastIndexOf(pat /* position */) { // length == 1 |
lrn@chromium.org | 1c09276 | 2011-05-09 09:42:16 +0000 | [diff] [blame] | 138 | if (IS_NULL_OR_UNDEFINED(this) && !IS_UNDETECTABLE(this)) { |
| 139 | throw MakeTypeError("called_on_null_or_undefined", |
| 140 | ["String.prototype.lastIndexOf"]); |
| 141 | } |
fschneider@chromium.org | b95b98b | 2010-02-23 10:34:29 +0000 | [diff] [blame] | 142 | var sub = TO_STRING_INLINE(this); |
sgjesse@chromium.org | 755c5b1 | 2009-05-29 11:04:38 +0000 | [diff] [blame] | 143 | var subLength = sub.length; |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 144 | var pat = TO_STRING_INLINE(pat); |
sgjesse@chromium.org | 755c5b1 | 2009-05-29 11:04:38 +0000 | [diff] [blame] | 145 | var patLength = pat.length; |
| 146 | var index = subLength - patLength; |
| 147 | if (%_ArgumentsLength() > 1) { |
| 148 | var position = ToNumber(%_Arguments(1)); |
fschneider@chromium.org | 9e3e0b6 | 2011-01-03 10:16:46 +0000 | [diff] [blame] | 149 | if (!NUMBER_IS_NAN(position)) { |
sgjesse@chromium.org | 755c5b1 | 2009-05-29 11:04:38 +0000 | [diff] [blame] | 150 | position = TO_INTEGER(position); |
| 151 | if (position < 0) { |
| 152 | position = 0; |
| 153 | } |
| 154 | if (position + patLength < subLength) { |
ricow@chromium.org | ddd545c | 2011-08-24 12:02:41 +0000 | [diff] [blame] | 155 | index = position; |
sgjesse@chromium.org | 755c5b1 | 2009-05-29 11:04:38 +0000 | [diff] [blame] | 156 | } |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 157 | } |
| 158 | } |
sgjesse@chromium.org | 755c5b1 | 2009-05-29 11:04:38 +0000 | [diff] [blame] | 159 | if (index < 0) { |
| 160 | return -1; |
| 161 | } |
| 162 | return %StringLastIndexOf(sub, pat, index); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 163 | } |
| 164 | |
| 165 | |
| 166 | // ECMA-262 section 15.5.4.9 |
| 167 | // |
| 168 | // This function is implementation specific. For now, we do not |
| 169 | // do anything locale specific. |
| 170 | function StringLocaleCompare(other) { |
lrn@chromium.org | 1c09276 | 2011-05-09 09:42:16 +0000 | [diff] [blame] | 171 | if (IS_NULL_OR_UNDEFINED(this) && !IS_UNDETECTABLE(this)) { |
| 172 | throw MakeTypeError("called_on_null_or_undefined", |
| 173 | ["String.prototype.localeCompare"]); |
| 174 | } |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 175 | if (%_ArgumentsLength() === 0) return 0; |
rossberg@chromium.org | 28a3708 | 2011-08-22 11:03:23 +0000 | [diff] [blame] | 176 | return %StringLocaleCompare(TO_STRING_INLINE(this), |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 177 | TO_STRING_INLINE(other)); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 178 | } |
| 179 | |
| 180 | |
| 181 | // ECMA-262 section 15.5.4.10 |
| 182 | function StringMatch(regexp) { |
lrn@chromium.org | 1c09276 | 2011-05-09 09:42:16 +0000 | [diff] [blame] | 183 | if (IS_NULL_OR_UNDEFINED(this) && !IS_UNDETECTABLE(this)) { |
| 184 | throw MakeTypeError("called_on_null_or_undefined", |
| 185 | ["String.prototype.match"]); |
| 186 | } |
fschneider@chromium.org | b95b98b | 2010-02-23 10:34:29 +0000 | [diff] [blame] | 187 | var subject = TO_STRING_INLINE(this); |
fschneider@chromium.org | 013f3e1 | 2010-04-26 13:27:52 +0000 | [diff] [blame] | 188 | if (IS_REGEXP(regexp)) { |
whesse@chromium.org | 023421e | 2010-12-21 12:19:12 +0000 | [diff] [blame] | 189 | if (!regexp.global) return RegExpExecNoTests(regexp, subject, 0); |
whesse@chromium.org | b6e43bb | 2010-04-14 09:36:28 +0000 | [diff] [blame] | 190 | %_Log('regexp', 'regexp-match,%0S,%1r', [subject, regexp]); |
| 191 | // lastMatchInfo is defined in regexp.js. |
fschneider@chromium.org | 7d10be5 | 2012-04-10 12:30:14 +0000 | [diff] [blame] | 192 | var result = %StringMatch(subject, regexp, lastMatchInfo); |
| 193 | if (result !== null) lastMatchInfoOverride = null; |
| 194 | return result; |
fschneider@chromium.org | 086aac6 | 2010-03-17 13:18:24 +0000 | [diff] [blame] | 195 | } |
whesse@chromium.org | b6e43bb | 2010-04-14 09:36:28 +0000 | [diff] [blame] | 196 | // Non-regexp argument. |
| 197 | regexp = new $RegExp(regexp); |
whesse@chromium.org | b6e43bb | 2010-04-14 09:36:28 +0000 | [diff] [blame] | 198 | return RegExpExecNoTests(regexp, subject, 0); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 199 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 200 | |
| 201 | |
| 202 | // SubString is an internal function that returns the sub string of 'string'. |
| 203 | // If resulting string is of length 1, we use the one character cache |
| 204 | // otherwise we call the runtime system. |
| 205 | function SubString(string, start, end) { |
| 206 | // Use the one character string cache. |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 207 | if (start + 1 == end) return %_StringCharAt(string, start); |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 208 | return %_SubString(string, start, end); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 209 | } |
| 210 | |
| 211 | |
sgjesse@chromium.org | c514574 | 2009-10-07 09:00:33 +0000 | [diff] [blame] | 212 | // This has the same size as the lastMatchInfo array, and can be used for |
| 213 | // functions that expect that structure to be returned. It is used when the |
| 214 | // needle is a string rather than a regexp. In this case we can't update |
| 215 | // lastMatchArray without erroneously affecting the properties on the global |
| 216 | // RegExp object. |
| 217 | var reusableMatchInfo = [2, "", "", -1, -1]; |
| 218 | |
| 219 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 220 | // ECMA-262, section 15.5.4.11 |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 221 | function StringReplace(search, replace) { |
lrn@chromium.org | 1c09276 | 2011-05-09 09:42:16 +0000 | [diff] [blame] | 222 | if (IS_NULL_OR_UNDEFINED(this) && !IS_UNDETECTABLE(this)) { |
| 223 | throw MakeTypeError("called_on_null_or_undefined", |
| 224 | ["String.prototype.replace"]); |
| 225 | } |
fschneider@chromium.org | b95b98b | 2010-02-23 10:34:29 +0000 | [diff] [blame] | 226 | var subject = TO_STRING_INLINE(this); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 227 | |
| 228 | // Delegate to one of the regular expression variants if necessary. |
| 229 | if (IS_REGEXP(search)) { |
christian.plesner.hansen@gmail.com | 37abdec | 2009-01-06 14:43:28 +0000 | [diff] [blame] | 230 | %_Log('regexp', 'regexp-replace,%0r,%1S', [search, subject]); |
lrn@chromium.org | 34e6078 | 2011-09-15 07:25:40 +0000 | [diff] [blame] | 231 | if (IS_SPEC_FUNCTION(replace)) { |
vegorov@chromium.org | dff694e | 2010-05-17 09:10:26 +0000 | [diff] [blame] | 232 | if (search.global) { |
| 233 | return StringReplaceGlobalRegExpWithFunction(subject, search, replace); |
| 234 | } else { |
| 235 | return StringReplaceNonGlobalRegExpWithFunction(subject, |
| 236 | search, |
| 237 | replace); |
| 238 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 239 | } else { |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 240 | return %StringReplaceRegExpWithString(subject, |
| 241 | search, |
| 242 | TO_STRING_INLINE(replace), |
| 243 | lastMatchInfo); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 244 | } |
| 245 | } |
| 246 | |
| 247 | // Convert the search argument to a string and search for it. |
fschneider@chromium.org | b95b98b | 2010-02-23 10:34:29 +0000 | [diff] [blame] | 248 | search = TO_STRING_INLINE(search); |
ulan@chromium.org | 2efb900 | 2012-01-19 15:36:35 +0000 | [diff] [blame] | 249 | if (search.length == 1 && |
| 250 | subject.length > 0xFF && |
| 251 | IS_STRING(replace) && |
| 252 | %StringIndexOf(replace, '$', 0) < 0) { |
| 253 | // Searching by traversing a cons string tree and replace with cons of |
| 254 | // slices works only when the replaced string is a single character, being |
| 255 | // replaced by a simple string and only pays off for long strings. |
| 256 | return %StringReplaceOneCharWithString(subject, search, replace); |
| 257 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 258 | var start = %StringIndexOf(subject, search, 0); |
| 259 | if (start < 0) return subject; |
| 260 | var end = start + search.length; |
| 261 | |
ager@chromium.org | 8bb6058 | 2008-12-11 12:02:20 +0000 | [diff] [blame] | 262 | var builder = new ReplaceResultBuilder(subject); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 263 | // prefix |
ager@chromium.org | 8bb6058 | 2008-12-11 12:02:20 +0000 | [diff] [blame] | 264 | builder.addSpecialSlice(0, start); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 265 | |
| 266 | // Compute the string to replace with. |
lrn@chromium.org | 34e6078 | 2011-09-15 07:25:40 +0000 | [diff] [blame] | 267 | if (IS_SPEC_FUNCTION(replace)) { |
ricow@chromium.org | 4668a2c | 2011-08-29 10:41:00 +0000 | [diff] [blame] | 268 | var receiver = %GetDefaultReceiver(replace); |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 269 | builder.add(%_CallFunction(receiver, |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 270 | search, |
| 271 | start, |
| 272 | subject, |
| 273 | replace)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 274 | } else { |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 275 | reusableMatchInfo[CAPTURE0] = start; |
| 276 | reusableMatchInfo[CAPTURE1] = end; |
fschneider@chromium.org | b95b98b | 2010-02-23 10:34:29 +0000 | [diff] [blame] | 277 | replace = TO_STRING_INLINE(replace); |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 278 | ExpandReplacement(replace, subject, reusableMatchInfo, builder); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 279 | } |
| 280 | |
| 281 | // suffix |
ager@chromium.org | 8bb6058 | 2008-12-11 12:02:20 +0000 | [diff] [blame] | 282 | builder.addSpecialSlice(end, subject.length); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 283 | |
| 284 | return builder.generate(); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 285 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 286 | |
| 287 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 288 | // Expand the $-expressions in the string and return a new string with |
| 289 | // the result. |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 290 | function ExpandReplacement(string, subject, matchInfo, builder) { |
whesse@chromium.org | 023421e | 2010-12-21 12:19:12 +0000 | [diff] [blame] | 291 | var length = string.length; |
jkummerow@chromium.org | ddda9e8 | 2011-07-06 11:27:02 +0000 | [diff] [blame] | 292 | var builder_elements = builder.elements; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 293 | var next = %StringIndexOf(string, '$', 0); |
| 294 | if (next < 0) { |
whesse@chromium.org | 023421e | 2010-12-21 12:19:12 +0000 | [diff] [blame] | 295 | if (length > 0) builder_elements.push(string); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 296 | return; |
| 297 | } |
| 298 | |
| 299 | // Compute the number of captures; see ECMA-262, 15.5.4.11, p. 102. |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 300 | var m = NUMBER_OF_CAPTURES(matchInfo) >> 1; // Includes the match. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 301 | |
whesse@chromium.org | 023421e | 2010-12-21 12:19:12 +0000 | [diff] [blame] | 302 | if (next > 0) builder_elements.push(SubString(string, 0, next)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 303 | |
| 304 | while (true) { |
| 305 | var expansion = '$'; |
| 306 | var position = next + 1; |
| 307 | if (position < length) { |
ricow@chromium.org | 30ce411 | 2010-05-31 10:38:25 +0000 | [diff] [blame] | 308 | var peek = %_StringCharCodeAt(string, position); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 309 | if (peek == 36) { // $$ |
| 310 | ++position; |
whesse@chromium.org | 023421e | 2010-12-21 12:19:12 +0000 | [diff] [blame] | 311 | builder_elements.push('$'); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 312 | } else if (peek == 38) { // $& - match |
| 313 | ++position; |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 314 | builder.addSpecialSlice(matchInfo[CAPTURE0], |
| 315 | matchInfo[CAPTURE1]); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 316 | } else if (peek == 96) { // $` - prefix |
| 317 | ++position; |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 318 | builder.addSpecialSlice(0, matchInfo[CAPTURE0]); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 319 | } else if (peek == 39) { // $' - suffix |
| 320 | ++position; |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 321 | builder.addSpecialSlice(matchInfo[CAPTURE1], subject.length); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 322 | } else if (peek >= 48 && peek <= 57) { // $n, 0 <= n <= 9 |
| 323 | ++position; |
| 324 | var n = peek - 48; |
| 325 | if (position < length) { |
ricow@chromium.org | 30ce411 | 2010-05-31 10:38:25 +0000 | [diff] [blame] | 326 | peek = %_StringCharCodeAt(string, position); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 327 | // $nn, 01 <= nn <= 99 |
| 328 | if (n != 0 && peek == 48 || peek >= 49 && peek <= 57) { |
| 329 | var nn = n * 10 + (peek - 48); |
| 330 | if (nn < m) { |
| 331 | // If the two digit capture reference is within range of |
| 332 | // the captures, we use it instead of the single digit |
| 333 | // one. Otherwise, we fall back to using the single |
| 334 | // digit reference. This matches the behavior of |
| 335 | // SpiderMonkey. |
| 336 | ++position; |
| 337 | n = nn; |
| 338 | } |
| 339 | } |
| 340 | } |
| 341 | if (0 < n && n < m) { |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 342 | addCaptureString(builder, matchInfo, n); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 343 | } else { |
| 344 | // Because of the captures range check in the parsing of two |
| 345 | // digit capture references, we can only enter here when a |
| 346 | // single digit capture reference is outside the range of |
| 347 | // captures. |
whesse@chromium.org | 023421e | 2010-12-21 12:19:12 +0000 | [diff] [blame] | 348 | builder_elements.push('$'); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 349 | --position; |
| 350 | } |
ager@chromium.org | 8c51fc9 | 2009-04-22 11:54:55 +0000 | [diff] [blame] | 351 | } else { |
whesse@chromium.org | 023421e | 2010-12-21 12:19:12 +0000 | [diff] [blame] | 352 | builder_elements.push('$'); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 353 | } |
ager@chromium.org | 8bb6058 | 2008-12-11 12:02:20 +0000 | [diff] [blame] | 354 | } else { |
whesse@chromium.org | 023421e | 2010-12-21 12:19:12 +0000 | [diff] [blame] | 355 | builder_elements.push('$'); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 356 | } |
| 357 | |
ager@chromium.org | 8bb6058 | 2008-12-11 12:02:20 +0000 | [diff] [blame] | 358 | // Go the the next $ in the string. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 359 | next = %StringIndexOf(string, '$', position); |
| 360 | |
| 361 | // Return if there are no more $ characters in the string. If we |
| 362 | // haven't reached the end, we need to append the suffix. |
| 363 | if (next < 0) { |
| 364 | if (position < length) { |
whesse@chromium.org | 023421e | 2010-12-21 12:19:12 +0000 | [diff] [blame] | 365 | builder_elements.push(SubString(string, position, length)); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 366 | } |
| 367 | return; |
| 368 | } |
| 369 | |
| 370 | // Append substring between the previous and the next $ character. |
whesse@chromium.org | 023421e | 2010-12-21 12:19:12 +0000 | [diff] [blame] | 371 | if (next > position) { |
| 372 | builder_elements.push(SubString(string, position, next)); |
| 373 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 374 | } |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 375 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 376 | |
| 377 | |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 378 | // Compute the string of a given regular expression capture. |
| 379 | function CaptureString(string, lastCaptureInfo, index) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 380 | // Scale the index. |
| 381 | var scaled = index << 1; |
| 382 | // Compute start and end. |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 383 | var start = lastCaptureInfo[CAPTURE(scaled)]; |
vegorov@chromium.org | dff694e | 2010-05-17 09:10:26 +0000 | [diff] [blame] | 384 | // If start isn't valid, return undefined. |
| 385 | if (start < 0) return; |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 386 | var end = lastCaptureInfo[CAPTURE(scaled + 1)]; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 387 | return SubString(string, start, end); |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 388 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 389 | |
| 390 | |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 391 | // Add the string of a given regular expression capture to the |
| 392 | // ReplaceResultBuilder |
| 393 | function addCaptureString(builder, matchInfo, index) { |
ager@chromium.org | 8bb6058 | 2008-12-11 12:02:20 +0000 | [diff] [blame] | 394 | // Scale the index. |
| 395 | var scaled = index << 1; |
| 396 | // Compute start and end. |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 397 | var start = matchInfo[CAPTURE(scaled)]; |
vegorov@chromium.org | dff694e | 2010-05-17 09:10:26 +0000 | [diff] [blame] | 398 | if (start < 0) return; |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 399 | var end = matchInfo[CAPTURE(scaled + 1)]; |
ager@chromium.org | 8bb6058 | 2008-12-11 12:02:20 +0000 | [diff] [blame] | 400 | builder.addSpecialSlice(start, end); |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 401 | } |
ager@chromium.org | 8bb6058 | 2008-12-11 12:02:20 +0000 | [diff] [blame] | 402 | |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 403 | // TODO(lrn): This array will survive indefinitely if replace is never |
| 404 | // called again. However, it will be empty, since the contents are cleared |
| 405 | // in the finally block. |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 406 | var reusableReplaceArray = new InternalArray(16); |
ager@chromium.org | 8bb6058 | 2008-12-11 12:02:20 +0000 | [diff] [blame] | 407 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 408 | // Helper function for replacing regular expressions with the result of a |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 409 | // function application in String.prototype.replace. |
vegorov@chromium.org | dff694e | 2010-05-17 09:10:26 +0000 | [diff] [blame] | 410 | function StringReplaceGlobalRegExpWithFunction(subject, regexp, replace) { |
| 411 | var resultArray = reusableReplaceArray; |
| 412 | if (resultArray) { |
| 413 | reusableReplaceArray = null; |
| 414 | } else { |
| 415 | // Inside a nested replace (replace called from the replacement function |
| 416 | // of another replace) or we have failed to set the reusable array |
| 417 | // back due to an exception in a replacement function. Create a new |
| 418 | // array to use in the future, or until the original is written back. |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 419 | resultArray = new InternalArray(16); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 420 | } |
vegorov@chromium.org | dff694e | 2010-05-17 09:10:26 +0000 | [diff] [blame] | 421 | var res = %RegExpExecMultiple(regexp, |
| 422 | subject, |
| 423 | lastMatchInfo, |
| 424 | resultArray); |
| 425 | regexp.lastIndex = 0; |
| 426 | if (IS_NULL(res)) { |
| 427 | // No matches at all. |
| 428 | reusableReplaceArray = resultArray; |
| 429 | return subject; |
| 430 | } |
| 431 | var len = res.length; |
| 432 | var i = 0; |
| 433 | if (NUMBER_OF_CAPTURES(lastMatchInfo) == 2) { |
| 434 | var match_start = 0; |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 435 | var override = new InternalArray(null, 0, subject); |
ricow@chromium.org | 4668a2c | 2011-08-29 10:41:00 +0000 | [diff] [blame] | 436 | var receiver = %GetDefaultReceiver(replace); |
vegorov@chromium.org | dff694e | 2010-05-17 09:10:26 +0000 | [diff] [blame] | 437 | while (i < len) { |
| 438 | var elem = res[i]; |
| 439 | if (%_IsSmi(elem)) { |
| 440 | if (elem > 0) { |
| 441 | match_start = (elem >> 11) + (elem & 0x7ff); |
| 442 | } else { |
| 443 | match_start = res[++i] - elem; |
| 444 | } |
| 445 | } else { |
| 446 | override[0] = elem; |
| 447 | override[1] = match_start; |
| 448 | lastMatchInfoOverride = override; |
| 449 | var func_result = |
| 450 | %_CallFunction(receiver, elem, match_start, subject, replace); |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 451 | res[i] = TO_STRING_INLINE(func_result); |
vegorov@chromium.org | dff694e | 2010-05-17 09:10:26 +0000 | [diff] [blame] | 452 | match_start += elem.length; |
| 453 | } |
| 454 | i++; |
| 455 | } |
| 456 | } else { |
lrn@chromium.org | 34e6078 | 2011-09-15 07:25:40 +0000 | [diff] [blame] | 457 | var receiver = %GetDefaultReceiver(replace); |
vegorov@chromium.org | dff694e | 2010-05-17 09:10:26 +0000 | [diff] [blame] | 458 | while (i < len) { |
| 459 | var elem = res[i]; |
| 460 | if (!%_IsSmi(elem)) { |
| 461 | // elem must be an Array. |
| 462 | // Use the apply argument as backing for global RegExp properties. |
| 463 | lastMatchInfoOverride = elem; |
lrn@chromium.org | 34e6078 | 2011-09-15 07:25:40 +0000 | [diff] [blame] | 464 | var func_result = %Apply(replace, receiver, elem, 0, elem.length); |
sgjesse@chromium.org | 496c03a | 2011-02-14 12:05:43 +0000 | [diff] [blame] | 465 | res[i] = TO_STRING_INLINE(func_result); |
vegorov@chromium.org | dff694e | 2010-05-17 09:10:26 +0000 | [diff] [blame] | 466 | } |
| 467 | i++; |
| 468 | } |
| 469 | } |
| 470 | var resultBuilder = new ReplaceResultBuilder(subject, res); |
| 471 | var result = resultBuilder.generate(); |
| 472 | resultArray.length = 0; |
| 473 | reusableReplaceArray = resultArray; |
| 474 | return result; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 475 | } |
| 476 | |
| 477 | |
vegorov@chromium.org | dff694e | 2010-05-17 09:10:26 +0000 | [diff] [blame] | 478 | function StringReplaceNonGlobalRegExpWithFunction(subject, regexp, replace) { |
| 479 | var matchInfo = DoRegExpExec(regexp, subject, 0); |
| 480 | if (IS_NULL(matchInfo)) return subject; |
| 481 | var result = new ReplaceResultBuilder(subject); |
| 482 | var index = matchInfo[CAPTURE0]; |
| 483 | result.addSpecialSlice(0, index); |
| 484 | var endOfMatch = matchInfo[CAPTURE1]; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 485 | // Compute the parameter list consisting of the match, captures, index, |
| 486 | // and subject for the replace function invocation. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 487 | // The number of captures plus one for the match. |
sgjesse@chromium.org | c514574 | 2009-10-07 09:00:33 +0000 | [diff] [blame] | 488 | var m = NUMBER_OF_CAPTURES(matchInfo) >> 1; |
vegorov@chromium.org | dff694e | 2010-05-17 09:10:26 +0000 | [diff] [blame] | 489 | var replacement; |
lrn@chromium.org | 34e6078 | 2011-09-15 07:25:40 +0000 | [diff] [blame] | 490 | var receiver = %GetDefaultReceiver(replace); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 491 | if (m == 1) { |
vegorov@chromium.org | dff694e | 2010-05-17 09:10:26 +0000 | [diff] [blame] | 492 | // No captures, only the match, which is always valid. |
| 493 | var s = SubString(subject, index, endOfMatch); |
ager@chromium.org | 381abbb | 2009-02-25 13:23:22 +0000 | [diff] [blame] | 494 | // Don't call directly to avoid exposing the built-in global object. |
vegorov@chromium.org | dff694e | 2010-05-17 09:10:26 +0000 | [diff] [blame] | 495 | replacement = |
ricow@chromium.org | 4f693d6 | 2011-07-04 14:01:31 +0000 | [diff] [blame] | 496 | %_CallFunction(receiver, s, index, subject, replace); |
vegorov@chromium.org | dff694e | 2010-05-17 09:10:26 +0000 | [diff] [blame] | 497 | } else { |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 498 | var parameters = new InternalArray(m + 2); |
vegorov@chromium.org | dff694e | 2010-05-17 09:10:26 +0000 | [diff] [blame] | 499 | for (var j = 0; j < m; j++) { |
| 500 | parameters[j] = CaptureString(subject, matchInfo, j); |
| 501 | } |
| 502 | parameters[j] = index; |
| 503 | parameters[j + 1] = subject; |
| 504 | |
lrn@chromium.org | 34e6078 | 2011-09-15 07:25:40 +0000 | [diff] [blame] | 505 | replacement = %Apply(replace, receiver, parameters, 0, j + 2); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 506 | } |
vegorov@chromium.org | dff694e | 2010-05-17 09:10:26 +0000 | [diff] [blame] | 507 | |
| 508 | result.add(replacement); // The add method converts to string if necessary. |
| 509 | // Can't use matchInfo any more from here, since the function could |
| 510 | // overwrite it. |
| 511 | result.addSpecialSlice(endOfMatch, subject.length); |
| 512 | return result.generate(); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 513 | } |
| 514 | |
vegorov@chromium.org | dff694e | 2010-05-17 09:10:26 +0000 | [diff] [blame] | 515 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 516 | // ECMA-262 section 15.5.4.12 |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 517 | function StringSearch(re) { |
lrn@chromium.org | 1c09276 | 2011-05-09 09:42:16 +0000 | [diff] [blame] | 518 | if (IS_NULL_OR_UNDEFINED(this) && !IS_UNDETECTABLE(this)) { |
| 519 | throw MakeTypeError("called_on_null_or_undefined", |
| 520 | ["String.prototype.search"]); |
| 521 | } |
ricow@chromium.org | c9c8082 | 2010-04-21 08:22:37 +0000 | [diff] [blame] | 522 | var regexp; |
| 523 | if (IS_STRING(re)) { |
| 524 | regexp = %_GetFromCache(STRING_TO_REGEXP_CACHE_ID, re); |
| 525 | } else if (IS_REGEXP(re)) { |
| 526 | regexp = re; |
| 527 | } else { |
| 528 | regexp = new $RegExp(re); |
| 529 | } |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 530 | var match = DoRegExpExec(regexp, TO_STRING_INLINE(this), 0); |
sgjesse@chromium.org | df7a284 | 2010-03-25 14:34:15 +0000 | [diff] [blame] | 531 | if (match) { |
sgjesse@chromium.org | df7a284 | 2010-03-25 14:34:15 +0000 | [diff] [blame] | 532 | return match[CAPTURE0]; |
| 533 | } |
| 534 | return -1; |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 535 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 536 | |
| 537 | |
| 538 | // ECMA-262 section 15.5.4.13 |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 539 | function StringSlice(start, end) { |
lrn@chromium.org | 1c09276 | 2011-05-09 09:42:16 +0000 | [diff] [blame] | 540 | if (IS_NULL_OR_UNDEFINED(this) && !IS_UNDETECTABLE(this)) { |
| 541 | throw MakeTypeError("called_on_null_or_undefined", |
| 542 | ["String.prototype.slice"]); |
| 543 | } |
fschneider@chromium.org | b95b98b | 2010-02-23 10:34:29 +0000 | [diff] [blame] | 544 | var s = TO_STRING_INLINE(this); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 545 | var s_len = s.length; |
| 546 | var start_i = TO_INTEGER(start); |
| 547 | var end_i = s_len; |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 548 | if (end !== void 0) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 549 | end_i = TO_INTEGER(end); |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 550 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 551 | |
| 552 | if (start_i < 0) { |
| 553 | start_i += s_len; |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 554 | if (start_i < 0) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 555 | start_i = 0; |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 556 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 557 | } else { |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 558 | if (start_i > s_len) { |
mstarzinger@chromium.org | 3233d2f | 2012-03-14 11:16:03 +0000 | [diff] [blame] | 559 | return ''; |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 560 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 561 | } |
| 562 | |
| 563 | if (end_i < 0) { |
| 564 | end_i += s_len; |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 565 | if (end_i < 0) { |
mstarzinger@chromium.org | 3233d2f | 2012-03-14 11:16:03 +0000 | [diff] [blame] | 566 | return ''; |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 567 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 568 | } else { |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 569 | if (end_i > s_len) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 570 | end_i = s_len; |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 571 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 572 | } |
| 573 | |
mstarzinger@chromium.org | 3233d2f | 2012-03-14 11:16:03 +0000 | [diff] [blame] | 574 | if (end_i <= start_i) { |
| 575 | return ''; |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 576 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 577 | |
mstarzinger@chromium.org | 3233d2f | 2012-03-14 11:16:03 +0000 | [diff] [blame] | 578 | return SubString(s, start_i, end_i); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 579 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 580 | |
| 581 | |
| 582 | // ECMA-262 section 15.5.4.14 |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 583 | function StringSplit(separator, limit) { |
lrn@chromium.org | 1c09276 | 2011-05-09 09:42:16 +0000 | [diff] [blame] | 584 | if (IS_NULL_OR_UNDEFINED(this) && !IS_UNDETECTABLE(this)) { |
| 585 | throw MakeTypeError("called_on_null_or_undefined", |
| 586 | ["String.prototype.split"]); |
| 587 | } |
fschneider@chromium.org | b95b98b | 2010-02-23 10:34:29 +0000 | [diff] [blame] | 588 | var subject = TO_STRING_INLINE(this); |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 589 | limit = (IS_UNDEFINED(limit)) ? 0xffffffff : TO_UINT32(limit); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 590 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 591 | // ECMA-262 says that if separator is undefined, the result should |
jkummerow@chromium.org | f7a5884 | 2012-02-21 10:08:21 +0000 | [diff] [blame] | 592 | // be an array of size 1 containing the entire string. |
| 593 | if (IS_UNDEFINED(separator)) { |
ager@chromium.org | 5aa501c | 2009-06-23 07:57:28 +0000 | [diff] [blame] | 594 | return [subject]; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 595 | } |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 596 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 597 | var length = subject.length; |
fschneider@chromium.org | b95b98b | 2010-02-23 10:34:29 +0000 | [diff] [blame] | 598 | if (!IS_REGEXP(separator)) { |
| 599 | separator = TO_STRING_INLINE(separator); |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 600 | |
| 601 | if (limit === 0) return []; |
| 602 | |
fschneider@chromium.org | b95b98b | 2010-02-23 10:34:29 +0000 | [diff] [blame] | 603 | var separator_length = separator.length; |
| 604 | |
ager@chromium.org | 5aa501c | 2009-06-23 07:57:28 +0000 | [diff] [blame] | 605 | // If the separator string is empty then return the elements in the subject. |
ager@chromium.org | beb2571 | 2010-11-29 08:02:25 +0000 | [diff] [blame] | 606 | if (separator_length === 0) return %StringToArray(subject, limit); |
fschneider@chromium.org | b95b98b | 2010-02-23 10:34:29 +0000 | [diff] [blame] | 607 | |
fschneider@chromium.org | 086aac6 | 2010-03-17 13:18:24 +0000 | [diff] [blame] | 608 | var result = %StringSplit(subject, separator, limit); |
fschneider@chromium.org | b95b98b | 2010-02-23 10:34:29 +0000 | [diff] [blame] | 609 | |
| 610 | return result; |
christian.plesner.hansen@gmail.com | 37abdec | 2009-01-06 14:43:28 +0000 | [diff] [blame] | 611 | } |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 612 | |
erik.corry@gmail.com | c3b670f | 2011-10-05 21:44:48 +0000 | [diff] [blame] | 613 | if (limit === 0) return []; |
| 614 | |
mstarzinger@chromium.org | 3233d2f | 2012-03-14 11:16:03 +0000 | [diff] [blame] | 615 | // Separator is a regular expression. |
| 616 | return StringSplitOnRegExp(subject, separator, limit, length); |
| 617 | } |
| 618 | |
| 619 | |
| 620 | function StringSplitOnRegExp(subject, separator, limit, length) { |
fschneider@chromium.org | b95b98b | 2010-02-23 10:34:29 +0000 | [diff] [blame] | 621 | %_Log('regexp', 'regexp-split,%0S,%1r', [subject, separator]); |
| 622 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 623 | if (length === 0) { |
whesse@chromium.org | f0ac72d | 2010-11-08 12:47:26 +0000 | [diff] [blame] | 624 | if (DoRegExpExec(separator, subject, 0, 0) != null) { |
fschneider@chromium.org | 086aac6 | 2010-03-17 13:18:24 +0000 | [diff] [blame] | 625 | return []; |
| 626 | } |
ager@chromium.org | 5aa501c | 2009-06-23 07:57:28 +0000 | [diff] [blame] | 627 | return [subject]; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 628 | } |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 629 | |
ager@chromium.org | 5aa501c | 2009-06-23 07:57:28 +0000 | [diff] [blame] | 630 | var currentIndex = 0; |
| 631 | var startIndex = 0; |
whesse@chromium.org | 023421e | 2010-12-21 12:19:12 +0000 | [diff] [blame] | 632 | var startMatch = 0; |
ager@chromium.org | 5aa501c | 2009-06-23 07:57:28 +0000 | [diff] [blame] | 633 | var result = []; |
| 634 | |
ager@chromium.org | 357bf65 | 2010-04-12 11:30:10 +0000 | [diff] [blame] | 635 | outer_loop: |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 636 | while (true) { |
| 637 | |
| 638 | if (startIndex === length) { |
whesse@chromium.org | 023421e | 2010-12-21 12:19:12 +0000 | [diff] [blame] | 639 | result.push(SubString(subject, currentIndex, length)); |
ager@chromium.org | 357bf65 | 2010-04-12 11:30:10 +0000 | [diff] [blame] | 640 | break; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 641 | } |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 642 | |
whesse@chromium.org | 023421e | 2010-12-21 12:19:12 +0000 | [diff] [blame] | 643 | var matchInfo = DoRegExpExec(separator, subject, startIndex); |
| 644 | if (matchInfo == null || length === (startMatch = matchInfo[CAPTURE0])) { |
| 645 | result.push(SubString(subject, currentIndex, length)); |
ager@chromium.org | 357bf65 | 2010-04-12 11:30:10 +0000 | [diff] [blame] | 646 | break; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 647 | } |
sgjesse@chromium.org | c514574 | 2009-10-07 09:00:33 +0000 | [diff] [blame] | 648 | var endIndex = matchInfo[CAPTURE1]; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 649 | |
| 650 | // We ignore a zero-length match at the currentIndex. |
| 651 | if (startIndex === endIndex && endIndex === currentIndex) { |
| 652 | startIndex++; |
| 653 | continue; |
| 654 | } |
| 655 | |
whesse@chromium.org | 023421e | 2010-12-21 12:19:12 +0000 | [diff] [blame] | 656 | if (currentIndex + 1 == startMatch) { |
| 657 | result.push(%_StringCharAt(subject, currentIndex)); |
| 658 | } else { |
| 659 | result.push(%_SubString(subject, currentIndex, startMatch)); |
| 660 | } |
| 661 | |
ager@chromium.org | 357bf65 | 2010-04-12 11:30:10 +0000 | [diff] [blame] | 662 | if (result.length === limit) break; |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 663 | |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 664 | var matchinfo_len = NUMBER_OF_CAPTURES(matchInfo) + REGEXP_FIRST_CAPTURE; |
| 665 | for (var i = REGEXP_FIRST_CAPTURE + 2; i < matchinfo_len; ) { |
| 666 | var start = matchInfo[i++]; |
| 667 | var end = matchInfo[i++]; |
| 668 | if (end != -1) { |
| 669 | if (start + 1 == end) { |
| 670 | result.push(%_StringCharAt(subject, start)); |
| 671 | } else { |
| 672 | result.push(%_SubString(subject, start, end)); |
| 673 | } |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 674 | } else { |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 675 | result.push(void 0); |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 676 | } |
ager@chromium.org | 357bf65 | 2010-04-12 11:30:10 +0000 | [diff] [blame] | 677 | if (result.length === limit) break outer_loop; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 678 | } |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 679 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 680 | startIndex = currentIndex = endIndex; |
| 681 | } |
ager@chromium.org | 357bf65 | 2010-04-12 11:30:10 +0000 | [diff] [blame] | 682 | return result; |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 683 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 684 | |
| 685 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 686 | // ECMA-262 section 15.5.4.15 |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 687 | function StringSubstring(start, end) { |
lrn@chromium.org | 1c09276 | 2011-05-09 09:42:16 +0000 | [diff] [blame] | 688 | if (IS_NULL_OR_UNDEFINED(this) && !IS_UNDETECTABLE(this)) { |
| 689 | throw MakeTypeError("called_on_null_or_undefined", |
| 690 | ["String.prototype.subString"]); |
| 691 | } |
fschneider@chromium.org | b95b98b | 2010-02-23 10:34:29 +0000 | [diff] [blame] | 692 | var s = TO_STRING_INLINE(this); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 693 | var s_len = s.length; |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 694 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 695 | var start_i = TO_INTEGER(start); |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 696 | if (start_i < 0) { |
| 697 | start_i = 0; |
| 698 | } else if (start_i > s_len) { |
| 699 | start_i = s_len; |
| 700 | } |
| 701 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 702 | var end_i = s_len; |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 703 | if (!IS_UNDEFINED(end)) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 704 | end_i = TO_INTEGER(end); |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 705 | if (end_i > s_len) { |
| 706 | end_i = s_len; |
| 707 | } else { |
| 708 | if (end_i < 0) end_i = 0; |
| 709 | if (start_i > end_i) { |
| 710 | var tmp = end_i; |
| 711 | end_i = start_i; |
| 712 | start_i = tmp; |
| 713 | } |
| 714 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 715 | } |
| 716 | |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 717 | return ((start_i + 1 == end_i) |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 718 | ? %_StringCharAt(s, start_i) |
| 719 | : %_SubString(s, start_i, end_i)); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 720 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 721 | |
| 722 | |
| 723 | // This is not a part of ECMA-262. |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 724 | function StringSubstr(start, n) { |
lrn@chromium.org | 1c09276 | 2011-05-09 09:42:16 +0000 | [diff] [blame] | 725 | if (IS_NULL_OR_UNDEFINED(this) && !IS_UNDETECTABLE(this)) { |
| 726 | throw MakeTypeError("called_on_null_or_undefined", |
| 727 | ["String.prototype.substr"]); |
| 728 | } |
fschneider@chromium.org | b95b98b | 2010-02-23 10:34:29 +0000 | [diff] [blame] | 729 | var s = TO_STRING_INLINE(this); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 730 | var len; |
| 731 | |
| 732 | // Correct n: If not given, set to string length; if explicitly |
| 733 | // set to undefined, zero, or negative, returns empty string. |
| 734 | if (n === void 0) { |
| 735 | len = s.length; |
| 736 | } else { |
| 737 | len = TO_INTEGER(n); |
| 738 | if (len <= 0) return ''; |
| 739 | } |
| 740 | |
| 741 | // Correct start: If not given (or undefined), set to zero; otherwise |
| 742 | // convert to integer and handle negative case. |
| 743 | if (start === void 0) { |
| 744 | start = 0; |
| 745 | } else { |
| 746 | start = TO_INTEGER(start); |
| 747 | // If positive, and greater than or equal to the string length, |
| 748 | // return empty string. |
| 749 | if (start >= s.length) return ''; |
| 750 | // If negative and absolute value is larger than the string length, |
| 751 | // use zero. |
| 752 | if (start < 0) { |
| 753 | start += s.length; |
| 754 | if (start < 0) start = 0; |
| 755 | } |
| 756 | } |
| 757 | |
| 758 | var end = start + len; |
| 759 | if (end > s.length) end = s.length; |
| 760 | |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 761 | return ((start + 1 == end) |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 762 | ? %_StringCharAt(s, start) |
| 763 | : %_SubString(s, start, end)); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 764 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 765 | |
| 766 | |
| 767 | // ECMA-262, 15.5.4.16 |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 768 | function StringToLowerCase() { |
lrn@chromium.org | 1c09276 | 2011-05-09 09:42:16 +0000 | [diff] [blame] | 769 | if (IS_NULL_OR_UNDEFINED(this) && !IS_UNDETECTABLE(this)) { |
| 770 | throw MakeTypeError("called_on_null_or_undefined", |
| 771 | ["String.prototype.toLowerCase"]); |
| 772 | } |
fschneider@chromium.org | b95b98b | 2010-02-23 10:34:29 +0000 | [diff] [blame] | 773 | return %StringToLowerCase(TO_STRING_INLINE(this)); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 774 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 775 | |
| 776 | |
| 777 | // ECMA-262, 15.5.4.17 |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 778 | function StringToLocaleLowerCase() { |
lrn@chromium.org | 1c09276 | 2011-05-09 09:42:16 +0000 | [diff] [blame] | 779 | if (IS_NULL_OR_UNDEFINED(this) && !IS_UNDETECTABLE(this)) { |
| 780 | throw MakeTypeError("called_on_null_or_undefined", |
| 781 | ["String.prototype.toLocaleLowerCase"]); |
| 782 | } |
fschneider@chromium.org | b95b98b | 2010-02-23 10:34:29 +0000 | [diff] [blame] | 783 | return %StringToLowerCase(TO_STRING_INLINE(this)); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 784 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 785 | |
| 786 | |
| 787 | // ECMA-262, 15.5.4.18 |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 788 | function StringToUpperCase() { |
lrn@chromium.org | 1c09276 | 2011-05-09 09:42:16 +0000 | [diff] [blame] | 789 | if (IS_NULL_OR_UNDEFINED(this) && !IS_UNDETECTABLE(this)) { |
| 790 | throw MakeTypeError("called_on_null_or_undefined", |
| 791 | ["String.prototype.toUpperCase"]); |
| 792 | } |
fschneider@chromium.org | b95b98b | 2010-02-23 10:34:29 +0000 | [diff] [blame] | 793 | return %StringToUpperCase(TO_STRING_INLINE(this)); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 794 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 795 | |
| 796 | |
| 797 | // ECMA-262, 15.5.4.19 |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 798 | function StringToLocaleUpperCase() { |
lrn@chromium.org | 1c09276 | 2011-05-09 09:42:16 +0000 | [diff] [blame] | 799 | if (IS_NULL_OR_UNDEFINED(this) && !IS_UNDETECTABLE(this)) { |
| 800 | throw MakeTypeError("called_on_null_or_undefined", |
| 801 | ["String.prototype.toLocaleUpperCase"]); |
| 802 | } |
fschneider@chromium.org | b95b98b | 2010-02-23 10:34:29 +0000 | [diff] [blame] | 803 | return %StringToUpperCase(TO_STRING_INLINE(this)); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 804 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 805 | |
christian.plesner.hansen@gmail.com | 9d58c2b | 2009-10-16 11:48:38 +0000 | [diff] [blame] | 806 | // ES5, 15.5.4.20 |
| 807 | function StringTrim() { |
lrn@chromium.org | 1c09276 | 2011-05-09 09:42:16 +0000 | [diff] [blame] | 808 | if (IS_NULL_OR_UNDEFINED(this) && !IS_UNDETECTABLE(this)) { |
| 809 | throw MakeTypeError("called_on_null_or_undefined", |
| 810 | ["String.prototype.trim"]); |
| 811 | } |
fschneider@chromium.org | b95b98b | 2010-02-23 10:34:29 +0000 | [diff] [blame] | 812 | return %StringTrim(TO_STRING_INLINE(this), true, true); |
christian.plesner.hansen@gmail.com | 9d58c2b | 2009-10-16 11:48:38 +0000 | [diff] [blame] | 813 | } |
| 814 | |
| 815 | function StringTrimLeft() { |
lrn@chromium.org | 1c09276 | 2011-05-09 09:42:16 +0000 | [diff] [blame] | 816 | if (IS_NULL_OR_UNDEFINED(this) && !IS_UNDETECTABLE(this)) { |
| 817 | throw MakeTypeError("called_on_null_or_undefined", |
| 818 | ["String.prototype.trimLeft"]); |
| 819 | } |
fschneider@chromium.org | b95b98b | 2010-02-23 10:34:29 +0000 | [diff] [blame] | 820 | return %StringTrim(TO_STRING_INLINE(this), true, false); |
christian.plesner.hansen@gmail.com | 9d58c2b | 2009-10-16 11:48:38 +0000 | [diff] [blame] | 821 | } |
| 822 | |
| 823 | function StringTrimRight() { |
lrn@chromium.org | 1c09276 | 2011-05-09 09:42:16 +0000 | [diff] [blame] | 824 | if (IS_NULL_OR_UNDEFINED(this) && !IS_UNDETECTABLE(this)) { |
| 825 | throw MakeTypeError("called_on_null_or_undefined", |
| 826 | ["String.prototype.trimRight"]); |
| 827 | } |
fschneider@chromium.org | b95b98b | 2010-02-23 10:34:29 +0000 | [diff] [blame] | 828 | return %StringTrim(TO_STRING_INLINE(this), false, true); |
christian.plesner.hansen@gmail.com | 9d58c2b | 2009-10-16 11:48:38 +0000 | [diff] [blame] | 829 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 830 | |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 831 | var static_charcode_array = new InternalArray(4); |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 832 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 833 | // ECMA-262, section 15.5.3.2 |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 834 | function StringFromCharCode(code) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 835 | var n = %_ArgumentsLength(); |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 836 | if (n == 1) { |
| 837 | if (!%_IsSmi(code)) code = ToNumber(code); |
ricow@chromium.org | 30ce411 | 2010-05-31 10:38:25 +0000 | [diff] [blame] | 838 | return %_StringCharFromCode(code & 0xffff); |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 839 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 840 | |
| 841 | // NOTE: This is not super-efficient, but it is necessary because we |
| 842 | // want to avoid converting to numbers from within the virtual |
| 843 | // machine. Maybe we can find another way of doing this? |
vegorov@chromium.org | f837290 | 2010-03-15 10:26:20 +0000 | [diff] [blame] | 844 | var codes = static_charcode_array; |
| 845 | for (var i = 0; i < n; i++) { |
| 846 | var code = %_Arguments(i); |
| 847 | if (!%_IsSmi(code)) code = ToNumber(code); |
| 848 | codes[i] = code; |
| 849 | } |
| 850 | codes.length = n; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 851 | return %StringFromCharCodeArray(codes); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 852 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 853 | |
| 854 | |
| 855 | // Helper function for very basic XSS protection. |
| 856 | function HtmlEscape(str) { |
fschneider@chromium.org | b95b98b | 2010-02-23 10:34:29 +0000 | [diff] [blame] | 857 | return TO_STRING_INLINE(str).replace(/</g, "<") |
| 858 | .replace(/>/g, ">") |
| 859 | .replace(/"/g, """) |
| 860 | .replace(/'/g, "'"); |
mstarzinger@chromium.org | 1b3afd1 | 2011-11-29 14:28:56 +0000 | [diff] [blame] | 861 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 862 | |
| 863 | |
| 864 | // Compatibility support for KJS. |
| 865 | // Tested by mozilla/js/tests/js1_5/Regress/regress-276103.js. |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 866 | function StringLink(s) { |
| 867 | return "<a href=\"" + HtmlEscape(s) + "\">" + this + "</a>"; |
| 868 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 869 | |
| 870 | |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 871 | function StringAnchor(name) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 872 | return "<a name=\"" + HtmlEscape(name) + "\">" + this + "</a>"; |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 873 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 874 | |
| 875 | |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 876 | function StringFontcolor(color) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 877 | return "<font color=\"" + HtmlEscape(color) + "\">" + this + "</font>"; |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 878 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 879 | |
| 880 | |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 881 | function StringFontsize(size) { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 882 | return "<font size=\"" + HtmlEscape(size) + "\">" + this + "</font>"; |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 883 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 884 | |
| 885 | |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 886 | function StringBig() { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 887 | return "<big>" + this + "</big>"; |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 888 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 889 | |
| 890 | |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 891 | function StringBlink() { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 892 | return "<blink>" + this + "</blink>"; |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 893 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 894 | |
| 895 | |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 896 | function StringBold() { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 897 | return "<b>" + this + "</b>"; |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 898 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 899 | |
| 900 | |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 901 | function StringFixed() { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 902 | return "<tt>" + this + "</tt>"; |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 903 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 904 | |
| 905 | |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 906 | function StringItalics() { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 907 | return "<i>" + this + "</i>"; |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 908 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 909 | |
| 910 | |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 911 | function StringSmall() { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 912 | return "<small>" + this + "</small>"; |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 913 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 914 | |
| 915 | |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 916 | function StringStrike() { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 917 | return "<strike>" + this + "</strike>"; |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 918 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 919 | |
| 920 | |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 921 | function StringSub() { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 922 | return "<sub>" + this + "</sub>"; |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 923 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 924 | |
| 925 | |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 926 | function StringSup() { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 927 | return "<sup>" + this + "</sup>"; |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 928 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 929 | |
| 930 | |
fschneider@chromium.org | 0c20e67 | 2010-01-14 15:28:53 +0000 | [diff] [blame] | 931 | // ReplaceResultBuilder support. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 932 | function ReplaceResultBuilder(str) { |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 933 | if (%_ArgumentsLength() > 1) { |
| 934 | this.elements = %_Arguments(1); |
| 935 | } else { |
karlklose@chromium.org | 8f806e8 | 2011-03-07 14:06:08 +0000 | [diff] [blame] | 936 | this.elements = new InternalArray(); |
lrn@chromium.org | 25156de | 2010-04-06 13:10:27 +0000 | [diff] [blame] | 937 | } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 938 | this.special_string = str; |
| 939 | } |
| 940 | |
fschneider@chromium.org | 1805e21 | 2011-09-05 10:49:12 +0000 | [diff] [blame] | 941 | SetUpLockedPrototype(ReplaceResultBuilder, |
| 942 | $Array("elements", "special_string"), $Array( |
| 943 | "add", function(str) { |
| 944 | str = TO_STRING_INLINE(str); |
| 945 | if (str.length > 0) this.elements.push(str); |
| 946 | }, |
| 947 | "addSpecialSlice", function(start, end) { |
| 948 | var len = end - start; |
| 949 | if (start < 0 || len <= 0) return; |
| 950 | if (start < 0x80000 && len < 0x800) { |
| 951 | this.elements.push((start << 11) | len); |
| 952 | } else { |
| 953 | // 0 < len <= String::kMaxLength and Smi::kMaxValue >= String::kMaxLength, |
| 954 | // so -len is a smi. |
| 955 | var elements = this.elements; |
| 956 | elements.push(-len); |
| 957 | elements.push(start); |
| 958 | } |
| 959 | }, |
| 960 | "generate", function() { |
whesse@chromium.org | 023421e | 2010-12-21 12:19:12 +0000 | [diff] [blame] | 961 | var elements = this.elements; |
fschneider@chromium.org | 1805e21 | 2011-09-05 10:49:12 +0000 | [diff] [blame] | 962 | return %StringBuilderConcat(elements, elements.length, this.special_string); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 963 | } |
fschneider@chromium.org | 1805e21 | 2011-09-05 10:49:12 +0000 | [diff] [blame] | 964 | )); |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 965 | |
| 966 | |
| 967 | // ------------------------------------------------------------------- |
| 968 | |
fschneider@chromium.org | 1805e21 | 2011-09-05 10:49:12 +0000 | [diff] [blame] | 969 | function SetUpString() { |
| 970 | %CheckIsBootstrapping(); |
| 971 | // Set up the constructor property on the String prototype object. |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 972 | %SetProperty($String.prototype, "constructor", $String, DONT_ENUM); |
| 973 | |
| 974 | |
fschneider@chromium.org | 1805e21 | 2011-09-05 10:49:12 +0000 | [diff] [blame] | 975 | // Set up the non-enumerable functions on the String object. |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 976 | InstallFunctions($String, DONT_ENUM, $Array( |
| 977 | "fromCharCode", StringFromCharCode |
| 978 | )); |
| 979 | |
| 980 | |
fschneider@chromium.org | 1805e21 | 2011-09-05 10:49:12 +0000 | [diff] [blame] | 981 | // Set up the non-enumerable functions on the String prototype object. |
ricow@chromium.org | 27bf288 | 2011-11-17 08:34:43 +0000 | [diff] [blame] | 982 | InstallFunctions($String.prototype, DONT_ENUM, $Array( |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 983 | "valueOf", StringValueOf, |
| 984 | "toString", StringToString, |
| 985 | "charAt", StringCharAt, |
| 986 | "charCodeAt", StringCharCodeAt, |
| 987 | "concat", StringConcat, |
| 988 | "indexOf", StringIndexOf, |
| 989 | "lastIndexOf", StringLastIndexOf, |
| 990 | "localeCompare", StringLocaleCompare, |
| 991 | "match", StringMatch, |
| 992 | "replace", StringReplace, |
| 993 | "search", StringSearch, |
| 994 | "slice", StringSlice, |
| 995 | "split", StringSplit, |
| 996 | "substring", StringSubstring, |
| 997 | "substr", StringSubstr, |
| 998 | "toLowerCase", StringToLowerCase, |
| 999 | "toLocaleLowerCase", StringToLocaleLowerCase, |
| 1000 | "toUpperCase", StringToUpperCase, |
| 1001 | "toLocaleUpperCase", StringToLocaleUpperCase, |
christian.plesner.hansen@gmail.com | 9d58c2b | 2009-10-16 11:48:38 +0000 | [diff] [blame] | 1002 | "trim", StringTrim, |
| 1003 | "trimLeft", StringTrimLeft, |
| 1004 | "trimRight", StringTrimRight, |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 1005 | "link", StringLink, |
| 1006 | "anchor", StringAnchor, |
| 1007 | "fontcolor", StringFontcolor, |
| 1008 | "fontsize", StringFontsize, |
| 1009 | "big", StringBig, |
| 1010 | "blink", StringBlink, |
| 1011 | "bold", StringBold, |
| 1012 | "fixed", StringFixed, |
| 1013 | "italics", StringItalics, |
| 1014 | "small", StringSmall, |
| 1015 | "strike", StringStrike, |
| 1016 | "sub", StringSub, |
ager@chromium.org | 5f0c45f | 2010-12-17 08:51:21 +0000 | [diff] [blame] | 1017 | "sup", StringSup |
kasperl@chromium.org | 41044eb | 2008-10-06 08:24:46 +0000 | [diff] [blame] | 1018 | )); |
| 1019 | } |
| 1020 | |
fschneider@chromium.org | 1805e21 | 2011-09-05 10:49:12 +0000 | [diff] [blame] | 1021 | SetUpString(); |