| Leo Repp | 58b9f11 | 2021-11-22 11:57:47 +0100 | [diff] [blame^] | 1 | "use strict"; |
| 2 | var __importDefault = (this && this.__importDefault) || function (mod) { |
| 3 | return (mod && mod.__esModule) ? mod : { "default": mod }; |
| 4 | }; |
| 5 | Object.defineProperty(exports, "__esModule", { value: true }); |
| 6 | exports.escapeUTF8 = exports.escape = exports.encodeNonAsciiHTML = exports.encodeHTML = exports.encodeXML = void 0; |
| 7 | var xml_json_1 = __importDefault(require("./maps/xml.json")); |
| 8 | var inverseXML = getInverseObj(xml_json_1.default); |
| 9 | var xmlReplacer = getInverseReplacer(inverseXML); |
| 10 | /** |
| 11 | * Encodes all non-ASCII characters, as well as characters not valid in XML |
| 12 | * documents using XML entities. |
| 13 | * |
| 14 | * If a character has no equivalent entity, a |
| 15 | * numeric hexadecimal reference (eg. `ü`) will be used. |
| 16 | */ |
| 17 | exports.encodeXML = getASCIIEncoder(inverseXML); |
| 18 | var entities_json_1 = __importDefault(require("./maps/entities.json")); |
| 19 | var inverseHTML = getInverseObj(entities_json_1.default); |
| 20 | var htmlReplacer = getInverseReplacer(inverseHTML); |
| 21 | /** |
| 22 | * Encodes all entities and non-ASCII characters in the input. |
| 23 | * |
| 24 | * This includes characters that are valid ASCII characters in HTML documents. |
| 25 | * For example `#` will be encoded as `#`. To get a more compact output, |
| 26 | * consider using the `encodeNonAsciiHTML` function. |
| 27 | * |
| 28 | * If a character has no equivalent entity, a |
| 29 | * numeric hexadecimal reference (eg. `ü`) will be used. |
| 30 | */ |
| 31 | exports.encodeHTML = getInverse(inverseHTML, htmlReplacer); |
| 32 | /** |
| 33 | * Encodes all non-ASCII characters, as well as characters not valid in HTML |
| 34 | * documents using HTML entities. |
| 35 | * |
| 36 | * If a character has no equivalent entity, a |
| 37 | * numeric hexadecimal reference (eg. `ü`) will be used. |
| 38 | */ |
| 39 | exports.encodeNonAsciiHTML = getASCIIEncoder(inverseHTML); |
| 40 | function getInverseObj(obj) { |
| 41 | return Object.keys(obj) |
| 42 | .sort() |
| 43 | .reduce(function (inverse, name) { |
| 44 | inverse[obj[name]] = "&" + name + ";"; |
| 45 | return inverse; |
| 46 | }, {}); |
| 47 | } |
| 48 | function getInverseReplacer(inverse) { |
| 49 | var single = []; |
| 50 | var multiple = []; |
| 51 | for (var _i = 0, _a = Object.keys(inverse); _i < _a.length; _i++) { |
| 52 | var k = _a[_i]; |
| 53 | if (k.length === 1) { |
| 54 | // Add value to single array |
| 55 | single.push("\\" + k); |
| 56 | } |
| 57 | else { |
| 58 | // Add value to multiple array |
| 59 | multiple.push(k); |
| 60 | } |
| 61 | } |
| 62 | // Add ranges to single characters. |
| 63 | single.sort(); |
| 64 | for (var start = 0; start < single.length - 1; start++) { |
| 65 | // Find the end of a run of characters |
| 66 | var end = start; |
| 67 | while (end < single.length - 1 && |
| 68 | single[end].charCodeAt(1) + 1 === single[end + 1].charCodeAt(1)) { |
| 69 | end += 1; |
| 70 | } |
| 71 | var count = 1 + end - start; |
| 72 | // We want to replace at least three characters |
| 73 | if (count < 3) |
| 74 | continue; |
| 75 | single.splice(start, count, single[start] + "-" + single[end]); |
| 76 | } |
| 77 | multiple.unshift("[" + single.join("") + "]"); |
| 78 | return new RegExp(multiple.join("|"), "g"); |
| 79 | } |
| 80 | // /[^\0-\x7F]/gu |
| 81 | var reNonASCII = /(?:[\x80-\uD7FF\uE000-\uFFFF]|[\uD800-\uDBFF][\uDC00-\uDFFF]|[\uD800-\uDBFF](?![\uDC00-\uDFFF])|(?:[^\uD800-\uDBFF]|^)[\uDC00-\uDFFF])/g; |
| 82 | var getCodePoint = |
| 83 | // eslint-disable-next-line @typescript-eslint/no-unnecessary-condition |
| 84 | String.prototype.codePointAt != null |
| 85 | ? // eslint-disable-next-line @typescript-eslint/no-non-null-assertion |
| 86 | function (str) { return str.codePointAt(0); } |
| 87 | : // http://mathiasbynens.be/notes/javascript-encoding#surrogate-formulae |
| 88 | function (c) { |
| 89 | return (c.charCodeAt(0) - 0xd800) * 0x400 + |
| 90 | c.charCodeAt(1) - |
| 91 | 0xdc00 + |
| 92 | 0x10000; |
| 93 | }; |
| 94 | function singleCharReplacer(c) { |
| 95 | return "&#x" + (c.length > 1 ? getCodePoint(c) : c.charCodeAt(0)) |
| 96 | .toString(16) |
| 97 | .toUpperCase() + ";"; |
| 98 | } |
| 99 | function getInverse(inverse, re) { |
| 100 | return function (data) { |
| 101 | return data |
| 102 | .replace(re, function (name) { return inverse[name]; }) |
| 103 | .replace(reNonASCII, singleCharReplacer); |
| 104 | }; |
| 105 | } |
| 106 | var reEscapeChars = new RegExp(xmlReplacer.source + "|" + reNonASCII.source, "g"); |
| 107 | /** |
| 108 | * Encodes all non-ASCII characters, as well as characters not valid in XML |
| 109 | * documents using numeric hexadecimal reference (eg. `ü`). |
| 110 | * |
| 111 | * Have a look at `escapeUTF8` if you want a more concise output at the expense |
| 112 | * of reduced transportability. |
| 113 | * |
| 114 | * @param data String to escape. |
| 115 | */ |
| 116 | function escape(data) { |
| 117 | return data.replace(reEscapeChars, singleCharReplacer); |
| 118 | } |
| 119 | exports.escape = escape; |
| 120 | /** |
| 121 | * Encodes all characters not valid in XML documents using numeric hexadecimal |
| 122 | * reference (eg. `ü`). |
| 123 | * |
| 124 | * Note that the output will be character-set dependent. |
| 125 | * |
| 126 | * @param data String to escape. |
| 127 | */ |
| 128 | function escapeUTF8(data) { |
| 129 | return data.replace(xmlReplacer, singleCharReplacer); |
| 130 | } |
| 131 | exports.escapeUTF8 = escapeUTF8; |
| 132 | function getASCIIEncoder(obj) { |
| 133 | return function (data) { |
| 134 | return data.replace(reEscapeChars, function (c) { return obj[c] || singleCharReplacer(c); }); |
| 135 | }; |
| 136 | } |