b618d2a42a
This relands r19196 with fixes. BUG=v8:3109 LOG=Y R=mstarzinger@chromium.org Review URL: https://codereview.chromium.org/141323007 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@19222 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
116 lines
3.1 KiB
JavaScript
116 lines
3.1 KiB
JavaScript
// Copyright 2014 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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var whitespaces = [
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// WhiteSpace defined in ECMA-262 5.1, 7.2
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0x0009, // Tab TAB
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0x000B, // Vertical Tab VT
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0x000C, // Form Feed FF
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0x0020, // Space SP
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0x00A0, // No-break space NBSP
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0xFEFF, // Byte Order Mark BOM
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// LineTerminator defined in ECMA-262 5.1, 7.3
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0x000A, // Line Feed LF
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0x000D, // Carriage Return CR
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0x2028, // Line Separator LS
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0x2029, // Paragraph Separator PS
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// Unicode 6.3.0 whitespaces (category 'Zs')
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0x1680, // Ogham Space Mark
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0x180E, // Mongolian Vowel Separator
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0x2000, // EN QUAD
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0x2001, // EM QUAD
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0x2002, // EN SPACE
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0x2003, // EM SPACE
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0x2004, // THREE-PER-EM SPACE
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0x2005, // FOUR-PER-EM SPACE
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0x2006, // SIX-PER-EM SPACE
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0x2007, // FIGURE SPACE
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0x2008, // PUNCTUATION SPACE
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0x2009, // THIN SPACE
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0x200A, // HAIR SPACE
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0x2028, // LINE SEPARATOR
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0x2029, // PARAGRAPH SEPARATOR
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0x202F, // NARROW NO-BREAK SPACE
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0x205F, // MEDIUM MATHEMATICAL SPACE
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0x3000, // IDEOGRAPHIC SPACE
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];
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// Add single twobyte char to force twobyte representation.
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// Interestingly, snowman is not "white" space :)
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var twobyte = "\u2603";
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var onebyte = "\u007E";
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var twobytespace = "\u2000";
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var onebytespace = "\u0020";
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function is_whitespace(c) {
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return whitespaces.indexOf(c.charCodeAt(0)) > -1;
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}
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function test_regexp(str) {
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var pos_match = str.match(/\s/);
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var neg_match = str.match(/\S/);
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var test_char = str[0];
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var postfix = str[1];
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if (is_whitespace(test_char)) {
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assertEquals(test_char, pos_match[0]);
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assertEquals(postfix, neg_match[0]);
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} else {
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assertEquals(test_char, neg_match[0]);
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assertNull(pos_match);
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}
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}
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function test_trim(c, infix) {
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var str = c + c + c + infix + c;
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if (is_whitespace(c)) {
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assertEquals(infix, str.trim());
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} else {
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assertEquals(str, str.trim());
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}
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}
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function test_parseInt(c, postfix) {
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// Skip if prefix is a digit.
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if (c >= "0" && c <= "9") return;
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var str = c + c + "123" + postfix;
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if (is_whitespace(c)) {
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assertEquals(123, parseInt(str));
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} else {
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assertEquals(NaN, parseInt(str));
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}
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}
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function test_eval(c, content) {
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if (!is_whitespace(c)) return;
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var str = c + c + "'" + content + "'" + c + c;
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assertEquals(content, eval(str));
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}
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function test_stringtonumber(c, postfix) {
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// Skip if prefix is a digit.
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if (c >= "0" && c <= "9") return;
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var result = 1 + Number(c + "123" + c + postfix);
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if (is_whitespace(c)) {
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assertEquals(124, result);
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} else {
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assertEquals(NaN, result);
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}
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}
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for (var i = 0; i < 0x10000; i++) {
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c = String.fromCharCode(i);
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test_regexp(c + onebyte);
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test_regexp(c + twobyte);
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test_trim(c, onebyte + "trim");
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test_trim(c, twobyte + "trim");
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test_parseInt(c, onebyte);
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test_parseInt(c, twobyte);
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test_eval(c, onebyte);
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test_eval(c, twobyte);
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test_stringtonumber(c, onebytespace);
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test_stringtonumber(c, twobytespace);
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}
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