source: trip-planner-front/node_modules/escape-html/index.js@ 6a3a178

Last change on this file since 6a3a178 was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago

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1/*!
2 * escape-html
3 * Copyright(c) 2012-2013 TJ Holowaychuk
4 * Copyright(c) 2015 Andreas Lubbe
5 * Copyright(c) 2015 Tiancheng "Timothy" Gu
6 * MIT Licensed
7 */
8
9'use strict';
10
11/**
12 * Module variables.
13 * @private
14 */
15
16var matchHtmlRegExp = /["'&<>]/;
17
18/**
19 * Module exports.
20 * @public
21 */
22
23module.exports = escapeHtml;
24
25/**
26 * Escape special characters in the given string of html.
27 *
28 * @param {string} string The string to escape for inserting into HTML
29 * @return {string}
30 * @public
31 */
32
33function escapeHtml(string) {
34 var str = '' + string;
35 var match = matchHtmlRegExp.exec(str);
36
37 if (!match) {
38 return str;
39 }
40
41 var escape;
42 var html = '';
43 var index = 0;
44 var lastIndex = 0;
45
46 for (index = match.index; index < str.length; index++) {
47 switch (str.charCodeAt(index)) {
48 case 34: // "
49 escape = '&quot;';
50 break;
51 case 38: // &
52 escape = '&amp;';
53 break;
54 case 39: // '
55 escape = '&#39;';
56 break;
57 case 60: // <
58 escape = '&lt;';
59 break;
60 case 62: // >
61 escape = '&gt;';
62 break;
63 default:
64 continue;
65 }
66
67 if (lastIndex !== index) {
68 html += str.substring(lastIndex, index);
69 }
70
71 lastIndex = index + 1;
72 html += escape;
73 }
74
75 return lastIndex !== index
76 ? html + str.substring(lastIndex, index)
77 : html;
78}
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