source: trip-planner-front/node_modules/encodeurl/index.js@ fa375fe

Last change on this file since fa375fe was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago

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1/*!
2 * encodeurl
3 * Copyright(c) 2016 Douglas Christopher Wilson
4 * MIT Licensed
5 */
6
7'use strict'
8
9/**
10 * Module exports.
11 * @public
12 */
13
14module.exports = encodeUrl
15
16/**
17 * RegExp to match non-URL code points, *after* encoding (i.e. not including "%")
18 * and including invalid escape sequences.
19 * @private
20 */
21
22var ENCODE_CHARS_REGEXP = /(?:[^\x21\x25\x26-\x3B\x3D\x3F-\x5B\x5D\x5F\x61-\x7A\x7E]|%(?:[^0-9A-Fa-f]|[0-9A-Fa-f][^0-9A-Fa-f]|$))+/g
23
24/**
25 * RegExp to match unmatched surrogate pair.
26 * @private
27 */
28
29var UNMATCHED_SURROGATE_PAIR_REGEXP = /(^|[^\uD800-\uDBFF])[\uDC00-\uDFFF]|[\uD800-\uDBFF]([^\uDC00-\uDFFF]|$)/g
30
31/**
32 * String to replace unmatched surrogate pair with.
33 * @private
34 */
35
36var UNMATCHED_SURROGATE_PAIR_REPLACE = '$1\uFFFD$2'
37
38/**
39 * Encode a URL to a percent-encoded form, excluding already-encoded sequences.
40 *
41 * This function will take an already-encoded URL and encode all the non-URL
42 * code points. This function will not encode the "%" character unless it is
43 * not part of a valid sequence (`%20` will be left as-is, but `%foo` will
44 * be encoded as `%25foo`).
45 *
46 * This encode is meant to be "safe" and does not throw errors. It will try as
47 * hard as it can to properly encode the given URL, including replacing any raw,
48 * unpaired surrogate pairs with the Unicode replacement character prior to
49 * encoding.
50 *
51 * @param {string} url
52 * @return {string}
53 * @public
54 */
55
56function encodeUrl (url) {
57 return String(url)
58 .replace(UNMATCHED_SURROGATE_PAIR_REGEXP, UNMATCHED_SURROGATE_PAIR_REPLACE)
59 .replace(ENCODE_CHARS_REGEXP, encodeURI)
60}
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