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| 1 // Copyright 2014 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 var whitespaces = [ | |
| 29 // Whitespaces defined in ECMA-262 5.1, 7.2 | |
| 30 0x0009, // Tab TAB | |
| 31 0x000B, // Vertical Tab VT | |
| 32 0x000C, // Form Feed FF | |
| 33 0x0020, // Space SP | |
| 34 0x00A0, // No-break space NBSP | |
| 35 0xFEFF, // Byte Order Mark BOM | |
| 36 // Unicode whitespaces | |
| 37 0x000A, // Line Feed LF | |
| 38 0x000D, // Carriage Return CR | |
| 39 0x0085, // Next Line NEL | |
| 40 0x1680, // Ogham Space Mark | |
| 41 0x180E, // Mongolian Vowel Separator | |
| 42 0x2000, // EN QUAD | |
| 43 0x2001, // EM QUAD | |
| 44 0x2002, // EN SPACE | |
| 45 0x2003, // EM SPACE | |
| 46 0x2004, // THREE-PER-EM SPACE | |
| 47 0x2005, // FOUR-PER-EM SPACE | |
| 48 0x2006, // SIX-PER-EM SPACE | |
| 49 0x2007, // FIGURE SPACE | |
| 50 0x2008, // PUNCTUATION SPACE | |
| 51 0x2009, // THIN SPACE | |
| 52 0x200A, // HAIR SPACE | |
| 53 0x2028, // LINE SEPARATOR | |
| 54 0x2029, // PARAGRAPH SEPARATOR | |
| 55 0x202F, // NARROW NO-BREAK SPACE | |
| 56 0x205F, // MEDIUM MATHEMATICAL SPACE | |
| 57 0x3000, // IDEOGRAPHIC SPACE | |
| 58 ]; | |
| 59 | |
| 60 // Add single twobyte char to force twobyte representation. | |
| 61 // Interestingly, snowman is not "white" space :) | |
| 62 var twobyte = "\u2603"; | |
| 63 var onebyte = "\u007E"; | |
| 64 var twobytespace = "\u2000"; | |
| 65 var onebytespace = "\u0020"; | |
| 66 | |
| 67 function is_whitespace(c) { | |
| 68 return whitespaces.indexOf(c.charCodeAt(0)) > -1; | |
| 69 } | |
| 70 | |
| 71 function test_regexp(str) { | |
| 72 var pos_match = str.match(/\s/); | |
| 73 var neg_match = str.match(/\S/); | |
| 74 var test_char = str[0]; | |
| 75 var postfix = str[1]; | |
| 76 if (is_whitespace(test_char)) { | |
| 77 assertEquals(test_char, pos_match[0]); | |
| 78 assertEquals(postfix, neg_match[0]); | |
| 79 } else { | |
| 80 assertEquals(test_char, neg_match[0]); | |
| 81 assertNull(pos_match); | |
| 82 } | |
| 83 } | |
| 84 | |
| 85 function test_trim(c, infix) { | |
| 86 var str = c + c + c + infix + c; | |
| 87 if (is_whitespace(c)) { | |
| 88 assertEquals(infix, str.trim()); | |
| 89 } else { | |
| 90 assertEquals(str, str.trim()); | |
| 91 } | |
| 92 } | |
| 93 | |
| 94 function test_parseInt(c, postfix) { | |
| 95 // Skip if prefix is a digit. | |
| 96 if (c >= "0" && c <= 9) return; | |
| 97 var str = c + c + "123" + postfix; | |
| 98 if (is_whitespace(c)) { | |
| 99 assertEquals(123, parseInt(str)); | |
| 100 } else { | |
| 101 assertEquals(NaN, parseInt(str)); | |
| 102 } | |
| 103 } | |
| 104 | |
| 105 function test_eval(c, content) { | |
| 106 if (!is_whitespace(c)) return; | |
| 107 var str = c + c + "'" + content + "'" + c + c; | |
| 108 assertEquals(content, eval(str)); | |
| 109 } | |
| 110 | |
| 111 function test_stringtonumber(c, postfix) { | |
| 112 // Skip if prefix is a digit. | |
| 113 if (c >= "0" && c <= 9) return; | |
| 114 var result = 1 + Number(c + "123" + c + postfix); | |
| 115 if (is_whitespace(c)) { | |
| 116 assertEquals(124, result); | |
| 117 } else { | |
| 118 assertEquals(NaN, result); | |
| 119 } | |
| 120 } | |
| 121 | |
| 122 for (var i = 0; i < 0x10000; i++) { | |
| 123 c = String.fromCharCode(i); | |
| 124 test_regexp(c + onebyte); | |
| 125 test_regexp(c + twobyte); | |
| 126 test_trim(c, onebyte + "trim"); | |
| 127 test_trim(c, twobyte + "trim"); | |
| 128 test_parseInt(c, onebyte); | |
| 129 test_parseInt(c, twobyte); | |
| 130 test_eval(c, onebyte); | |
| 131 test_eval(c, twobyte); | |
| 132 test_stringtonumber(c, onebytespace); | |
| 133 test_stringtonumber(c, twobytespace); | |
| 134 } | |
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Chromium Code Reviews
Issue 147443008:
Revert "Fix inconsistencies wrt whitespaces." (Closed)
Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge