// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license. // The following code is based off of text-encoding at: // https://github.com/inexorabletash/text-encoding // // Anyone is free to copy, modify, publish, use, compile, sell, or // distribute this software, either in source code form or as a compiled // binary, for any purpose, commercial or non-commercial, and by any // means. // // In jurisdictions that recognize copyright laws, the author or authors // of this software dedicate any and all copyright interest in the // software to the public domain. We make this dedication for the benefit // of the public at large and to the detriment of our heirs and // successors. We intend this dedication to be an overt act of // relinquishment in perpetuity of all present and future rights to this // software under copyright law. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. // IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR // OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, // ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR // OTHER DEALINGS IN THE SOFTWARE. ((window) => { const core = Deno.core; const CONTINUE = null; const END_OF_STREAM = -1; const FINISHED = -1; function decoderError(fatal) { if (fatal) { throw new TypeError("Decoder error."); } return 0xfffd; // default code point } function inRange(a, min, max) { return min <= a && a <= max; } function isASCIIByte(a) { return inRange(a, 0x00, 0x7f); } function stringToCodePoints(input) { const u = []; for (const c of input) { u.push(c.codePointAt(0)); } return u; } class UTF8Encoder { handler(codePoint) { if (codePoint === END_OF_STREAM) { return "finished"; } if (inRange(codePoint, 0x00, 0x7f)) { return [codePoint]; } let count; let offset; if (inRange(codePoint, 0x0080, 0x07ff)) { count = 1; offset = 0xc0; } else if (inRange(codePoint, 0x0800, 0xffff)) { count = 2; offset = 0xe0; } else if (inRange(codePoint, 0x10000, 0x10ffff)) { count = 3; offset = 0xf0; } else { throw TypeError( `Code point out of range: \\x${codePoint.toString(16)}`, ); } const bytes = [(codePoint >> (6 * count)) + offset]; while (count > 0) { const temp = codePoint >> (6 * (count - 1)); bytes.push(0x80 | (temp & 0x3f)); count--; } return bytes; } } function atob(s) { s = String(s); s = s.replace(/[\t\n\f\r ]/g, ""); if (s.length % 4 === 0) { s = s.replace(/==?$/, ""); } const rem = s.length % 4; if (rem === 1 || /[^+/0-9A-Za-z]/.test(s)) { throw new DOMException( "The string to be decoded is not correctly encoded", "DataDecodeError", ); } // base64-js requires length exactly times of 4 if (rem > 0) { s = s.padEnd(s.length + (4 - rem), "="); } const byteArray = base64.toByteArray(s); let result = ""; for (let i = 0; i < byteArray.length; i++) { result += String.fromCharCode(byteArray[i]); } return result; } function btoa(s) { const byteArray = []; for (let i = 0; i < s.length; i++) { const charCode = s[i].charCodeAt(0); if (charCode > 0xff) { throw new TypeError( "The string to be encoded contains characters " + "outside of the Latin1 range.", ); } byteArray.push(charCode); } const result = base64.fromByteArray(Uint8Array.from(byteArray)); return result; } class SingleByteDecoder { #index = []; #fatal = false; constructor(index, { ignoreBOM = false, fatal = false } = {}) { if (ignoreBOM) { throw new TypeError("Ignoring the BOM is available only with utf-8."); } this.#fatal = fatal; this.#index = index; } handler(_stream, byte) { if (byte === END_OF_STREAM) { return FINISHED; } if (isASCIIByte(byte)) { return byte; } const codePoint = this.#index[byte - 0x80]; if (codePoint == null) { return decoderError(this.#fatal); } return codePoint; } } // The encodingMap is a hash of labels that are indexed by the conical // encoding. const encodingMap = { "windows-1252": [ "ansi_x3.4-1968", "ascii", "cp1252", "cp819", "csisolatin1", "ibm819", "iso-8859-1", "iso-ir-100", "iso8859-1", "iso88591", "iso_8859-1", "iso_8859-1:1987", "l1", "latin1", "us-ascii", "windows-1252", "x-cp1252", ], "utf-8": ["unicode-1-1-utf-8", "utf-8", "utf8"], ibm866: ["866", "cp866", "csibm866", "ibm866"], "iso-8859-2": [ "csisolatin2", "iso-8859-2", "iso-ir-101", "iso8859-2", "iso88592", "iso_8859-2", "iso_8859-2:1987", "l2", "latin2", ], "iso-8859-3": [ "csisolatin3", "iso-8859-3", "iso-ir-109", "iso8859-3", "iso88593", "iso_8859-3", "iso_8859-3:1988", "l3", "latin3", ], "iso-8859-4": [ "csisolatin4", "iso-8859-4", "iso-ir-110", "iso8859-4", "iso88594", "iso_8859-4", "iso_8859-4:1988", "l4", "latin4", ], "iso-8859-5": [ "csisolatincyrillic", "cyrillic", "iso-8859-5", "iso-ir-144", "iso8859-5", "iso88595", "iso_8859-5", "iso_8859-5:1988", ], "iso-8859-6": [ "arabic", "asmo-708", "csiso88596e", "csiso88596i", "csisolatinarabic", "ecma-114", "iso-8859-6", "iso-8859-6-e", "iso-8859-6-i", "iso-ir-127", "iso8859-6", "iso88596", "iso_8859-6", "iso_8859-6:1987", ], "iso-8859-7": [ "csisolatingreek", "ecma-118", "elot_928", "greek", "greek8", "iso-8859-7", "iso-ir-126", "iso8859-7", "iso88597", "iso_8859-7", "iso_8859-7:1987", "sun_eu_greek", ], "iso-8859-8": [ "csiso88598e", "csisolatinhebrew", "hebrew", "iso-8859-8", "iso-8859-8-e", "iso-ir-138", "iso8859-8", "iso88598", "iso_8859-8", "iso_8859-8:1988", "visual", ], "iso-8859-10": [ "csisolatin6", "iso-8859-10", "iso-ir-157", "iso8859-10", "iso885910", "l6", "latin6", ], "iso-8859-13": ["iso-8859-13", "iso8859-13", "iso885913"], "iso-8859-14": ["iso-8859-14", "iso8859-14", "iso885914"], "iso-8859-15": [ "csisolatin9", "iso-8859-15", "iso8859-15", "iso885915", "iso_8859-15", "l9", ], "iso-8859-16": ["iso-8859-16"], gbk: [ "chinese", "csgb2312", "csiso58gb231280", "gb2312", "gb_2312", "gb_2312-80", "gbk", "iso-ir-58", "x-gbk", ], gb18030: ["gb18030"], big5: ["big5", "big5-hkscs", "cn-big5", "csbig5", "x-x-big5"], "koi8-r": ["cskoi8r", "koi", "koi8", "koi8-r", "koi8_r"], "koi8-u": ["koi8-ru", "koi8-u"], macintosh: ["csmacintosh", "mac", "macintosh", "x-mac-roman"], "windows-874": [ "dos-874", "iso-8859-11", "iso8859-11", "iso885911", "tis-620", "windows-874", ], "windows-1250": ["cp1250", "windows-1250", "x-cp1250"], "windows-1251": ["cp1251", "windows-1251", "x-cp1251"], "windows-1253": ["cp1253", "windows-1253", "x-cp1253"], "windows-1254": [ "cp1254", "csisolatin5", "iso-8859-9", "iso-ir-148", "iso8859-9", "iso88599", "iso_8859-9", "iso_8859-9:1989", "l5", "latin5", "windows-1254", "x-cp1254", ], "windows-1255": ["cp1255", "windows-1255", "x-cp1255"], "windows-1256": ["cp1256", "windows-1256", "x-cp1256"], "windows-1257": ["cp1257", "windows-1257", "x-cp1257"], "windows-1258": ["cp1258", "windows-1258", "x-cp1258"], "x-mac-cyrillic": ["x-mac-cyrillic", "x-mac-ukrainian"], }; // We convert these into a Map where every label resolves to its canonical // encoding type. const encodings = new Map(); for (const key of Object.keys(encodingMap)) { const labels = encodingMap[key]; for (const label of labels) { encodings.set(label, key); } } // A map of functions that return new instances of a decoder indexed by the // encoding type. const decoders = new Map(); // Single byte decoders are an array of code point lookups const encodingIndexes = new Map(); // deno-fmt-ignore encodingIndexes.set("windows-1252", [ 8364, 129, 8218, 402, 8222, 8230, 8224, 8225, 710, 8240, 352, 8249, 338, 141, 381, 143, 144, 8216, 8217, 8220, 8221, 8226, 8211, 8212, 732, 8482, 353, 8250, 339, 157, 382, 376, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255, ]); // deno-fmt-ignore encodingIndexes.set("ibm866", [ 1040, 1041, 1042, 1043, 1044, 1045, 1046, 1047, 1048, 1049, 1050, 1051, 1052, 1053, 1054, 1055, 1056, 1057, 1058, 1059, 1060, 1061, 1062, 1063, 1064, 1065, 1066, 1067, 1068, 1069, 1070, 1071, 1072, 1073, 1074, 1075, 1076, 1077, 1078, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086, 1087, 9617, 9618, 9619, 9474, 9508, 9569, 9570, 9558, 9557, 9571, 9553, 9559, 9565, 9564, 9563, 9488, 9492, 9524, 9516, 9500, 9472, 9532, 9566, 9567, 9562, 9556, 9577, 9574, 9568, 9552, 9580, 9575, 9576, 9572, 9573, 9561, 9560, 9554, 9555, 9579, 9578, 9496, 9484, 9608, 9604, 9612, 9616, 9600, 1088, 1089, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098, 1099, 1100, 1101, 1102, 1103, 1025, 1105, 1028, 1108, 1031, 1111, 1038, 1118, 176, 8729, 183, 8730, 8470, 164, 9632, 160, ]); // deno-fmt-ignore encodingIndexes.set("iso-8859-2", [ 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 260, 728, 321, 164, 317, 346, 167, 168, 352, 350, 356, 377, 173, 381, 379, 176, 261, 731, 322, 180, 318, 347, 711, 184, 353, 351, 357, 378, 733, 382, 380, 340, 193, 194, 258, 196, 313, 262, 199, 268, 201, 280, 203, 282, 205, 206, 270, 272, 323, 327, 211, 212, 336, 214, 215, 344, 366, 218, 368, 220, 221, 354, 223, 341, 225, 226, 259, 228, 314, 263, 231, 269, 233, 281, 235, 283, 237, 238, 271, 273, 324, 328, 243, 244, 337, 246, 247, 345, 367, 250, 369, 252, 253, 355, 729, ]); // deno-fmt-ignore encodingIndexes.set("iso-8859-3", [ 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 294, 728, 163, 164, null, 292, 167, 168, 304, 350, 286, 308, 173, null, 379, 176, 295, 178, 179, 180, 181, 293, 183, 184, 305, 351, 287, 309, 189, null, 380, 192, 193, 194, null, 196, 266, 264, 199, 200, 201, 202, 203, 204, 205, 206, 207, null, 209, 210, 211, 212, 288, 214, 215, 284, 217, 218, 219, 220, 364, 348, 223, 224, 225, 226, null, 228, 267, 265, 231, 232, 233, 234, 235, 236, 237, 238, 239, null, 241, 242, 243, 244, 289, 246, 247, 285, 249, 250, 251, 252, 365, 349, 729, ]); // deno-fmt-ignore encodingIndexes.set("iso-8859-4", [ 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 260, 312, 342, 164, 296, 315, 167, 168, 352, 274, 290, 358, 173, 381, 175, 176, 261, 731, 343, 180, 297, 316, 711, 184, 353, 275, 291, 359, 330, 382, 331, 256, 193, 194, 195, 196, 197, 198, 302, 268, 201, 280, 203, 278, 205, 206, 298, 272, 325, 332, 310, 212, 213, 214, 215, 216, 370, 218, 219, 220, 360, 362, 223, 257, 225, 226, 227, 228, 229, 230, 303, 269, 233, 281, 235, 279, 237, 238, 299, 273, 326, 333, 311, 244, 245, 246, 247, 248, 371, 250, 251, 252, 361, 363, 729, ]); // deno-fmt-ignore encodingIndexes.set("iso-8859-5", [ 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 1025, 1026, 1027, 1028, 1029, 1030, 1031, 1032, 1033, 1034, 1035, 1036, 173, 1038, 1039, 1040, 1041, 1042, 1043, 1044, 1045, 1046, 1047, 1048, 1049, 1050, 1051, 1052, 1053, 1054, 1055, 1056, 1057, 1058, 1059, 1060, 1061, 1062, 1063, 1064, 1065, 1066, 1067, 1068, 1069, 1070, 1071, 1072, 1073, 1074, 1075, 1076, 1077, 1078, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086, 1087, 1088, 1089, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098, 1099, 1100, 1101, 1102, 1103, 8470, 1105, 1106, 1107, 1108, 1109, 1110, 1111, 1112, 1113, 1114, 1115, 1116, 167, 1118, 1119, ]); // deno-fmt-ignore encodingIndexes.set("iso-8859-6", [ 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, null, null, null, 164, null, null, null, null, null, null, null, 1548, 173, null, null, null, null, null, null, null, null, null, null, null, null, null, 1563, null, null, null, 1567, null, 1569, 1570, 1571, 1572, 1573, 1574, 1575, 1576, 1577, 1578, 1579, 1580, 1581, 1582, 1583, 1584, 1585, 1586, 1587, 1588, 1589, 1590, 1591, 1592, 1593, 1594, null, null, null, null, null, 1600, 1601, 1602, 1603, 1604, 1605, 1606, 1607, 1608, 1609, 1610, 1611, 1612, 1613, 1614, 1615, 1616, 1617, 1618, null, null, null, null, null, null, null, null, null, null, null, null, null, ]); // deno-fmt-ignore encodingIndexes.set("iso-8859-7", [ 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 8216, 8217, 163, 8364, 8367, 166, 167, 168, 169, 890, 171, 172, 173, null, 8213, 176, 177, 178, 179, 900, 901, 902, 183, 904, 905, 906, 187, 908, 189, 910, 911, 912, 913, 914, 915, 916, 917, 918, 919, 920, 921, 922, 923, 924, 925, 926, 927, 928, 929, null, 931, 932, 933, 934, 935, 936, 937, 938, 939, 940, 941, 942, 943, 944, 945, 946, 947, 948, 949, 950, 951, 952, 953, 954, 955, 956, 957, 958, 959, 960, 961, 962, 963, 964, 965, 966, 967, 968, 969, 970, 971, 972, 973, 974, null, ]); // deno-fmt-ignore encodingIndexes.set("iso-8859-8", [ 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, null, 162, 163, 164, 165, 166, 167, 168, 169, 215, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 247, 187, 188, 189, 190, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, null, 8215, 1488, 1489, 1490, 1491, 1492, 1493, 1494, 1495, 1496, 1497, 1498, 1499, 1500, 1501, 1502, 1503, 1504, 1505, 1506, 1507, 1508, 1509, 1510, 1511, 1512, 1513, 1514, null, null, 8206, 8207, null, ]); // deno-fmt-ignore encodingIndexes.set("iso-8859-10", [ 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 260, 274, 290, 298, 296, 310, 167, 315, 272, 352, 358, 381, 173, 362, 330, 176, 261, 275, 291, 299, 297, 311, 183, 316, 273, 353, 359, 382, 8213, 363, 331, 256, 193, 194, 195, 196, 197, 198, 302, 268, 201, 280, 203, 278, 205, 206, 207, 208, 325, 332, 211, 212, 213, 214, 360, 216, 370, 218, 219, 220, 221, 222, 223, 257, 225, 226, 227, 228, 229, 230, 303, 269, 233, 281, 235, 279, 237, 238, 239, 240, 326, 333, 243, 244, 245, 246, 361, 248, 371, 250, 251, 252, 253, 254, 312, ]); // deno-fmt-ignore encodingIndexes.set("iso-8859-13", [ 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 8221, 162, 163, 164, 8222, 166, 167, 216, 169, 342, 171, 172, 173, 174, 198, 176, 177, 178, 179, 8220, 181, 182, 183, 248, 185, 343, 187, 188, 189, 190, 230, 260, 302, 256, 262, 196, 197, 280, 274, 268, 201, 377, 278, 290, 310, 298, 315, 352, 323, 325, 211, 332, 213, 214, 215, 370, 321, 346, 362, 220, 379, 381, 223, 261, 303, 257, 263, 228, 229, 281, 275, 269, 233, 378, 279, 291, 311, 299, 316, 353, 324, 326, 243, 333, 245, 246, 247, 371, 322, 347, 363, 252, 380, 382, 8217, ]); // deno-fmt-ignore encodingIndexes.set("iso-8859-14", [ 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 7682, 7683, 163, 266, 267, 7690, 167, 7808, 169, 7810, 7691, 7922, 173, 174, 376, 7710, 7711, 288, 289, 7744, 7745, 182, 7766, 7809, 7767, 7811, 7776, 7923, 7812, 7813, 7777, 192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 372, 209, 210, 211, 212, 213, 214, 7786, 216, 217, 218, 219, 220, 221, 374, 223, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 373, 241, 242, 243, 244, 245, 246, 7787, 248, 249, 250, 251, 252, 253, 375, 255, ]); // deno-fmt-ignore encodingIndexes.set("iso-8859-15", [ 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 8364, 165, 352, 167, 353, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 381, 181, 182, 183, 382, 185, 186, 187, 338, 339, 376, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255, ]); // deno-fmt-ignore encodingIndexes.set("iso-8859-16", [ 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 260, 261, 321, 8364, 8222, 352, 167, 353, 169, 536, 171, 377, 173, 378, 379, 176, 177, 268, 322, 381, 8221, 182, 183, 382, 269, 537, 187, 338, 339, 376, 380, 192, 193, 194, 258, 196, 262, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 272, 323, 210, 211, 212, 336, 214, 346, 368, 217, 218, 219, 220, 280, 538, 223, 224, 225, 226, 259, 228, 263, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 273, 324, 242, 243, 244, 337, 246, 347, 369, 249, 250, 251, 252, 281, 539, 255, ]); // deno-fmt-ignore encodingIndexes.set("koi8-r", [ 9472, 9474, 9484, 9488, 9492, 9496, 9500, 9508, 9516, 9524, 9532, 9600, 9604, 9608, 9612, 9616, 9617, 9618, 9619, 8992, 9632, 8729, 8730, 8776, 8804, 8805, 160, 8993, 176, 178, 183, 247, 9552, 9553, 9554, 1105, 9555, 9556, 9557, 9558, 9559, 9560, 9561, 9562, 9563, 9564, 9565, 9566, 9567, 9568, 9569, 1025, 9570, 9571, 9572, 9573, 9574, 9575, 9576, 9577, 9578, 9579, 9580, 169, 1102, 1072, 1073, 1094, 1076, 1077, 1092, 1075, 1093, 1080, 1081, 1082, 1083, 1084, 1085, 1086, 1087, 1103, 1088, 1089, 1090, 1091, 1078, 1074, 1100, 1099, 1079, 1096, 1101, 1097, 1095, 1098, 1070, 1040, 1041, 1062, 1044, 1045, 1060, 1043, 1061, 1048, 1049, 1050, 1051, 1052, 1053, 1054, 1055, 1071, 1056, 1057, 1058, 1059, 1046, 1042, 1068, 1067, 1047, 1064, 1069, 1065, 1063, 1066, ]); // deno-fmt-ignore encodingIndexes.set("koi8-u", [ 9472, 9474, 9484, 9488, 9492, 9496, 9500, 9508, 9516, 9524, 9532, 9600, 9604, 9608, 9612, 9616, 9617, 9618, 9619, 8992, 9632, 8729, 8730, 8776, 8804, 8805, 160, 8993, 176, 178, 183, 247, 9552, 9553, 9554, 1105, 1108, 9556, 1110, 1111, 9559, 9560, 9561, 9562, 9563, 1169, 1118, 9566, 9567, 9568, 9569, 1025, 1028, 9571, 1030, 1031, 9574, 9575, 9576, 9577, 9578, 1168, 1038, 169, 1102, 1072, 1073, 1094, 1076, 1077, 1092, 1075, 1093, 1080, 1081, 1082, 1083, 1084, 1085, 1086, 1087, 1103, 1088, 1089, 1090, 1091, 1078, 1074, 1100, 1099, 1079, 1096, 1101, 1097, 1095, 1098, 1070, 1040, 1041, 1062, 1044, 1045, 1060, 1043, 1061, 1048, 1049, 1050, 1051, 1052, 1053, 1054, 1055, 1071, 1056, 1057, 1058, 1059, 1046, 1042, 1068, 1067, 1047, 1064, 1069, 1065, 1063, 1066, ]); // deno-fmt-ignore encodingIndexes.set("macintosh", [ 196, 197, 199, 201, 209, 214, 220, 225, 224, 226, 228, 227, 229, 231, 233, 232, 234, 235, 237, 236, 238, 239, 241, 243, 242, 244, 246, 245, 250, 249, 251, 252, 8224, 176, 162, 163, 167, 8226, 182, 223, 174, 169, 8482, 180, 168, 8800, 198, 216, 8734, 177, 8804, 8805, 165, 181, 8706, 8721, 8719, 960, 8747, 170, 186, 937, 230, 248, 191, 161, 172, 8730, 402, 8776, 8710, 171, 187, 8230, 160, 192, 195, 213, 338, 339, 8211, 8212, 8220, 8221, 8216, 8217, 247, 9674, 255, 376, 8260, 8364, 8249, 8250, 64257, 64258, 8225, 183, 8218, 8222, 8240, 194, 202, 193, 203, 200, 205, 206, 207, 204, 211, 212, 63743, 210, 218, 219, 217, 305, 710, 732, 175, 728, 729, 730, 184, 733, 731, 711, ]); // deno-fmt-ignore encodingIndexes.set("windows-874", [ 8364, 129, 130, 131, 132, 8230, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 8216, 8217, 8220, 8221, 8226, 8211, 8212, 152, 153, 154, 155, 156, 157, 158, 159, 160, 3585, 3586, 3587, 3588, 3589, 3590, 3591, 3592, 3593, 3594, 3595, 3596, 3597, 3598, 3599, 3600, 3601, 3602, 3603, 3604, 3605, 3606, 3607, 3608, 3609, 3610, 3611, 3612, 3613, 3614, 3615, 3616, 3617, 3618, 3619, 3620, 3621, 3622, 3623, 3624, 3625, 3626, 3627, 3628, 3629, 3630, 3631, 3632, 3633, 3634, 3635, 3636, 3637, 3638, 3639, 3640, 3641, 3642, null, null, null, null, 3647, 3648, 3649, 3650, 3651, 3652, 3653, 3654, 3655, 3656, 3657, 3658, 3659, 3660, 3661, 3662, 3663, 3664, 3665, 3666, 3667, 3668, 3669, 3670, 3671, 3672, 3673, 3674, 3675, null, null, null, null, ]); // deno-fmt-ignore encodingIndexes.set("windows-1250", [ 8364, 129, 8218, 131, 8222, 8230, 8224, 8225, 136, 8240, 352, 8249, 346, 356, 381, 377, 144, 8216, 8217, 8220, 8221, 8226, 8211, 8212, 152, 8482, 353, 8250, 347, 357, 382, 378, 160, 711, 728, 321, 164, 260, 166, 167, 168, 169, 350, 171, 172, 173, 174, 379, 176, 177, 731, 322, 180, 181, 182, 183, 184, 261, 351, 187, 317, 733, 318, 380, 340, 193, 194, 258, 196, 313, 262, 199, 268, 201, 280, 203, 282, 205, 206, 270, 272, 323, 327, 211, 212, 336, 214, 215, 344, 366, 218, 368, 220, 221, 354, 223, 341, 225, 226, 259, 228, 314, 263, 231, 269, 233, 281, 235, 283, 237, 238, 271, 273, 324, 328, 243, 244, 337, 246, 247, 345, 367, 250, 369, 252, 253, 355, 729, ]); // deno-fmt-ignore encodingIndexes.set("windows-1251", [ 1026, 1027, 8218, 1107, 8222, 8230, 8224, 8225, 8364, 8240, 1033, 8249, 1034, 1036, 1035, 1039, 1106, 8216, 8217, 8220, 8221, 8226, 8211, 8212, 152, 8482, 1113, 8250, 1114, 1116, 1115, 1119, 160, 1038, 1118, 1032, 164, 1168, 166, 167, 1025, 169, 1028, 171, 172, 173, 174, 1031, 176, 177, 1030, 1110, 1169, 181, 182, 183, 1105, 8470, 1108, 187, 1112, 1029, 1109, 1111, 1040, 1041, 1042, 1043, 1044, 1045, 1046, 1047, 1048, 1049, 1050, 1051, 1052, 1053, 1054, 1055, 1056, 1057, 1058, 1059, 1060, 1061, 1062, 1063, 1064, 1065, 1066, 1067, 1068, 1069, 1070, 1071, 1072, 1073, 1074, 1075, 1076, 1077, 1078, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086, 1087, 1088, 1089, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098, 1099, 1100, 1101, 1102, 1103, ]); // deno-fmt-ignore encodingIndexes.set("windows-1253", [ 8364, 129, 8218, 402, 8222, 8230, 8224, 8225, 136, 8240, 138, 8249, 140, 141, 142, 143, 144, 8216, 8217, 8220, 8221, 8226, 8211, 8212, 152, 8482, 154, 8250, 156, 157, 158, 159, 160, 901, 902, 163, 164, 165, 166, 167, 168, 169, null, 171, 172, 173, 174, 8213, 176, 177, 178, 179, 900, 181, 182, 183, 904, 905, 906, 187, 908, 189, 910, 911, 912, 913, 914, 915, 916, 917, 918, 919, 920, 921, 922, 923, 924, 925, 926, 927, 928, 929, null, 931, 932, 933, 934, 935, 936, 937, 938, 939, 940, 941, 942, 943, 944, 945, 946, 947, 948, 949, 950, 951, 952, 953, 954, 955, 956, 957, 958, 959, 960, 961, 962, 963, 964, 965, 966, 967, 968, 969, 970, 971, 972, 973, 974, null, ]); // deno-fmt-ignore encodingIndexes.set("windows-1254", [ 8364, 129, 8218, 402, 8222, 8230, 8224, 8225, 710, 8240, 352, 8249, 338, 141, 142, 143, 144, 8216, 8217, 8220, 8221, 8226, 8211, 8212, 732, 8482, 353, 8250, 339, 157, 158, 376, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 286, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 304, 350, 223, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 287, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 305, 351, 255, ]); // deno-fmt-ignore encodingIndexes.set("windows-1255", [ 8364, 129, 8218, 402, 8222, 8230, 8224, 8225, 710, 8240, 138, 8249, 140, 141, 142, 143, 144, 8216, 8217, 8220, 8221, 8226, 8211, 8212, 732, 8482, 154, 8250, 156, 157, 158, 159, 160, 161, 162, 163, 8362, 165, 166, 167, 168, 169, 215, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 247, 187, 188, 189, 190, 191, 1456, 1457, 1458, 1459, 1460, 1461, 1462, 1463, 1464, 1465, 1466, 1467, 1468, 1469, 1470, 1471, 1472, 1473, 1474, 1475, 1520, 1521, 1522, 1523, 1524, null, null, null, null, null, null, null, 1488, 1489, 1490, 1491, 1492, 1493, 1494, 1495, 1496, 1497, 1498, 1499, 1500, 1501, 1502, 1503, 1504, 1505, 1506, 1507, 1508, 1509, 1510, 1511, 1512, 1513, 1514, null, null, 8206, 8207, null, ]); // deno-fmt-ignore encodingIndexes.set("windows-1256", [ 8364, 1662, 8218, 402, 8222, 8230, 8224, 8225, 710, 8240, 1657, 8249, 338, 1670, 1688, 1672, 1711, 8216, 8217, 8220, 8221, 8226, 8211, 8212, 1705, 8482, 1681, 8250, 339, 8204, 8205, 1722, 160, 1548, 162, 163, 164, 165, 166, 167, 168, 169, 1726, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 1563, 187, 188, 189, 190, 1567, 1729, 1569, 1570, 1571, 1572, 1573, 1574, 1575, 1576, 1577, 1578, 1579, 1580, 1581, 1582, 1583, 1584, 1585, 1586, 1587, 1588, 1589, 1590, 215, 1591, 1592, 1593, 1594, 1600, 1601, 1602, 1603, 224, 1604, 226, 1605, 1606, 1607, 1608, 231, 232, 233, 234, 235, 1609, 1610, 238, 239, 1611, 1612, 1613, 1614, 244, 1615, 1616, 247, 1617, 249, 1618, 251, 252, 8206, 8207, 1746, ]); // deno-fmt-ignore encodingIndexes.set("windows-1257", [ 8364, 129, 8218, 131, 8222, 8230, 8224, 8225, 136, 8240, 138, 8249, 140, 168, 711, 184, 144, 8216, 8217, 8220, 8221, 8226, 8211, 8212, 152, 8482, 154, 8250, 156, 175, 731, 159, 160, null, 162, 163, 164, null, 166, 167, 216, 169, 342, 171, 172, 173, 174, 198, 176, 177, 178, 179, 180, 181, 182, 183, 248, 185, 343, 187, 188, 189, 190, 230, 260, 302, 256, 262, 196, 197, 280, 274, 268, 201, 377, 278, 290, 310, 298, 315, 352, 323, 325, 211, 332, 213, 214, 215, 370, 321, 346, 362, 220, 379, 381, 223, 261, 303, 257, 263, 228, 229, 281, 275, 269, 233, 378, 279, 291, 311, 299, 316, 353, 324, 326, 243, 333, 245, 246, 247, 371, 322, 347, 363, 252, 380, 382, 729, ]); // deno-fmt-ignore encodingIndexes.set("windows-1258", [ 8364, 129, 8218, 402, 8222, 8230, 8224, 8225, 710, 8240, 138, 8249, 338, 141, 142, 143, 144, 8216, 8217, 8220, 8221, 8226, 8211, 8212, 732, 8482, 154, 8250, 339, 157, 158, 376, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 258, 196, 197, 198, 199, 200, 201, 202, 203, 768, 205, 206, 207, 272, 209, 777, 211, 212, 416, 214, 215, 216, 217, 218, 219, 220, 431, 771, 223, 224, 225, 226, 259, 228, 229, 230, 231, 232, 233, 234, 235, 769, 237, 238, 239, 273, 241, 803, 243, 244, 417, 246, 247, 248, 249, 250, 251, 252, 432, 8363, 255, ]); // deno-fmt-ignore encodingIndexes.set("x-mac-cyrillic", [ 1040, 1041, 1042, 1043, 1044, 1045, 1046, 1047, 1048, 1049, 1050, 1051, 1052, 1053, 1054, 1055, 1056, 1057, 1058, 1059, 1060, 1061, 1062, 1063, 1064, 1065, 1066, 1067, 1068, 1069, 1070, 1071, 8224, 176, 1168, 163, 167, 8226, 182, 1030, 174, 169, 8482, 1026, 1106, 8800, 1027, 1107, 8734, 177, 8804, 8805, 1110, 181, 1169, 1032, 1028, 1108, 1031, 1111, 1033, 1113, 1034, 1114, 1112, 1029, 172, 8730, 402, 8776, 8710, 171, 187, 8230, 160, 1035, 1115, 1036, 1116, 1109, 8211, 8212, 8220, 8221, 8216, 8217, 247, 8222, 1038, 1118, 1039, 1119, 8470, 1025, 1105, 1103, 1072, 1073, 1074, 1075, 1076, 1077, 1078, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086, 1087, 1088, 1089, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098, 1099, 1100, 1101, 1102, 8364, ]); for (const [key, index] of encodingIndexes) { decoders.set(key, (options) => { return new SingleByteDecoder(index, options); }); } function codePointsToString(codePoints) { let s = ""; for (const cp of codePoints) { s += String.fromCodePoint(cp); } return s; } class Stream { #tokens = []; constructor(tokens) { this.#tokens = [...tokens]; this.#tokens.reverse(); } endOfStream() { return !this.#tokens.length; } read() { return !this.#tokens.length ? END_OF_STREAM : this.#tokens.pop(); } prepend(token) { if (Array.isArray(token)) { while (token.length) { this.#tokens.push(token.pop()); } } else { this.#tokens.push(token); } } push(token) { if (Array.isArray(token)) { while (token.length) { this.#tokens.unshift(token.shift()); } } else { this.#tokens.unshift(token); } } } function isEitherArrayBuffer(x) { return ( x instanceof SharedArrayBuffer || x instanceof ArrayBuffer || typeof x === "undefined" ); } class TextDecoder { #encoding = ""; get encoding() { return this.#encoding; } fatal = false; ignoreBOM = false; constructor(label = "utf-8", options = { fatal: false }) { if (options.ignoreBOM) { this.ignoreBOM = true; } if (options.fatal) { this.fatal = true; } const _label = String(label).trim().toLowerCase(); const encoding = encodings.get(_label); if (!encoding) { throw new RangeError( `The encoding label provided ('${label}') is invalid.`, ); } if (!decoders.has(encoding) && encoding !== "utf-8") { throw new RangeError(`Internal decoder ('${encoding}') not found.`); } this.#encoding = encoding; } decode(input, options = { stream: false }) { if (options.stream) { throw new TypeError("Stream not supported."); } let bytes; if (input instanceof Uint8Array) { bytes = input; } else if (isEitherArrayBuffer(input)) { bytes = new Uint8Array(input); } else if ( typeof input === "object" && input !== null && "buffer" in input && isEitherArrayBuffer(input.buffer) ) { bytes = new Uint8Array( input.buffer, input.byteOffset, input.byteLength, ); } else { throw new TypeError( "Provided input is not of type ArrayBuffer or ArrayBufferView", ); } // For simple utf-8 decoding "Deno.core.decode" can be used for performance if ( this.#encoding === "utf-8" && this.fatal === false && this.ignoreBOM === false ) { return core.decode(bytes); } // For performance reasons we utilise a highly optimised decoder instead of // the general decoder. if (this.#encoding === "utf-8") { return decodeUtf8(bytes, this.fatal, this.ignoreBOM); } const decoder = decoders.get(this.#encoding)({ fatal: this.fatal, ignoreBOM: this.ignoreBOM, }); const inputStream = new Stream(bytes); const output = []; while (true) { const result = decoder.handler(inputStream, inputStream.read()); if (result === FINISHED) { break; } if (result !== CONTINUE) { output.push(result); } } if (output.length > 0 && output[0] === 0xfeff) { output.shift(); } return codePointsToString(output); } get [Symbol.toStringTag]() { return "TextDecoder"; } } class TextEncoder { encoding = "utf-8"; encode(input = "") { input = String(input); // Deno.core.encode() provides very efficient utf-8 encoding if (this.encoding === "utf-8") { return core.encode(input); } const encoder = new UTF8Encoder(); const inputStream = new Stream(stringToCodePoints(input)); const output = []; while (true) { const result = encoder.handler(inputStream.read()); if (result === "finished") { break; } output.push(...result); } return new Uint8Array(output); } encodeInto(input, dest) { const encoder = new UTF8Encoder(); const inputStream = new Stream(stringToCodePoints(input)); let written = 0; let read = 0; while (true) { const result = encoder.handler(inputStream.read()); if (result === "finished") { break; } if (dest.length - written >= result.length) { read++; dest.set(result, written); written += result.length; if (result.length > 3) { // increment read a second time if greater than U+FFFF read++; } } else { break; } } return { read, written, }; } get [Symbol.toStringTag]() { return "TextEncoder"; } } // This function is based on Bjoern Hoehrmann's DFA UTF-8 decoder. // See http://bjoern.hoehrmann.de/utf-8/decoder/dfa/ for details. // // Copyright (c) 2008-2009 Bjoern Hoehrmann // // Permission is hereby granted, free of charge, to any person obtaining a copy // of this software and associated documentation files (the "Software"), to deal // in the Software without restriction, including without limitation the rights // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell // copies of the Software, and to permit persons to whom the Software is // furnished to do so, subject to the following conditions: // // The above copyright notice and this permission notice shall be included in // all copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE // SOFTWARE. function decodeUtf8(input, fatal, ignoreBOM) { let outString = ""; // Prepare a buffer so that we don't have to do a lot of string concats, which // are very slow. const outBufferLength = Math.min(1024, input.length); const outBuffer = new Uint16Array(outBufferLength); let outIndex = 0; let state = 0; let codepoint = 0; let type; let i = ignoreBOM && input[0] === 0xef && input[1] === 0xbb && input[2] === 0xbf ? 3 : 0; for (; i < input.length; ++i) { // Encoding error handling if (state === 12 || (state !== 0 && (input[i] & 0xc0) !== 0x80)) { if (fatal) { throw new TypeError( `Decoder error. Invalid byte in sequence at position ${i} in data.`, ); } outBuffer[outIndex++] = 0xfffd; // Replacement character if (outIndex === outBufferLength) { outString += String.fromCharCode.apply(null, outBuffer); outIndex = 0; } state = 0; } // deno-fmt-ignore // deno-fmt-ignore type = [ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, 8,8,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 10,3,3,3,3,3,3,3,3,3,3,3,3,4,3,3, 11,6,6,6,5,8,8,8,8,8,8,8,8,8,8,8 ][input[i]]; codepoint = state !== 0 ? (input[i] & 0x3f) | (codepoint << 6) : (0xff >> type) & input[i]; // deno-fmt-ignore // deno-fmt-ignore state = [ 0,12,24,36,60,96,84,12,12,12,48,72, 12,12,12,12,12,12,12,12,12,12,12,12, 12, 0,12,12,12,12,12, 0,12, 0,12,12, 12,24,12,12,12,12,12,24,12,24,12,12, 12,12,12,12,12,12,12,24,12,12,12,12, 12,24,12,12,12,12,12,12,12,24,12,12, 12,12,12,12,12,12,12,36,12,36,12,12, 12,36,12,12,12,12,12,36,12,36,12,12, 12,36,12,12,12,12,12,12,12,12,12,12 ][state + type]; if (state !== 0) continue; // Add codepoint to buffer (as charcodes for utf-16), and flush buffer to // string if needed. if (codepoint > 0xffff) { outBuffer[outIndex++] = 0xd7c0 + (codepoint >> 10); if (outIndex === outBufferLength) { outString += String.fromCharCode.apply(null, outBuffer); outIndex = 0; } outBuffer[outIndex++] = 0xdc00 | (codepoint & 0x3ff); if (outIndex === outBufferLength) { outString += String.fromCharCode.apply(null, outBuffer); outIndex = 0; } } else { outBuffer[outIndex++] = codepoint; if (outIndex === outBufferLength) { outString += String.fromCharCode.apply(null, outBuffer); outIndex = 0; } } } // Add a replacement character if we ended in the middle of a sequence or // encountered an invalid code at the end. if (state !== 0) { if (fatal) throw new TypeError(`Decoder error. Unexpected end of data.`); outBuffer[outIndex++] = 0xfffd; // Replacement character } // Final flush of buffer outString += String.fromCharCode.apply( null, outBuffer.subarray(0, outIndex), ); return outString; } // Following code is forked from https://github.com/beatgammit/base64-js // Copyright (c) 2014 Jameson Little. MIT License. const lookup = []; const revLookup = []; const code = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; for (let i = 0, len = code.length; i < len; ++i) { lookup[i] = code[i]; revLookup[code.charCodeAt(i)] = i; } // Support decoding URL-safe base64 strings, as Node.js does. // See: https://en.wikipedia.org/wiki/Base64#URL_applications revLookup["-".charCodeAt(0)] = 62; revLookup["_".charCodeAt(0)] = 63; function getLens(b64) { const len = b64.length; if (len % 4 > 0) { throw new Error("Invalid string. Length must be a multiple of 4"); } // Trim off extra bytes after placeholder bytes are found // See: https://github.com/beatgammit/base64-js/issues/42 let validLen = b64.indexOf("="); if (validLen === -1) validLen = len; const placeHoldersLen = validLen === len ? 0 : 4 - (validLen % 4); return [validLen, placeHoldersLen]; } // base64 is 4/3 + up to two characters of the original data function byteLength(b64) { const lens = getLens(b64); const validLen = lens[0]; const placeHoldersLen = lens[1]; return ((validLen + placeHoldersLen) * 3) / 4 - placeHoldersLen; } function _byteLength(b64, validLen, placeHoldersLen) { return ((validLen + placeHoldersLen) * 3) / 4 - placeHoldersLen; } function toByteArray(b64) { let tmp; const lens = getLens(b64); const validLen = lens[0]; const placeHoldersLen = lens[1]; const arr = new Uint8Array(_byteLength(b64, validLen, placeHoldersLen)); let curByte = 0; // if there are placeholders, only get up to the last complete 4 chars const len = placeHoldersLen > 0 ? validLen - 4 : validLen; let i; for (i = 0; i < len; i += 4) { tmp = (revLookup[b64.charCodeAt(i)] << 18) | (revLookup[b64.charCodeAt(i + 1)] << 12) | (revLookup[b64.charCodeAt(i + 2)] << 6) | revLookup[b64.charCodeAt(i + 3)]; arr[curByte++] = (tmp >> 16) & 0xff; arr[curByte++] = (tmp >> 8) & 0xff; arr[curByte++] = tmp & 0xff; } if (placeHoldersLen === 2) { tmp = (revLookup[b64.charCodeAt(i)] << 2) | (revLookup[b64.charCodeAt(i + 1)] >> 4); arr[curByte++] = tmp & 0xff; } if (placeHoldersLen === 1) { tmp = (revLookup[b64.charCodeAt(i)] << 10) | (revLookup[b64.charCodeAt(i + 1)] << 4) | (revLookup[b64.charCodeAt(i + 2)] >> 2); arr[curByte++] = (tmp >> 8) & 0xff; arr[curByte++] = tmp & 0xff; } return arr; } function tripletToBase64(num) { return ( lookup[(num >> 18) & 0x3f] + lookup[(num >> 12) & 0x3f] + lookup[(num >> 6) & 0x3f] + lookup[num & 0x3f] ); } function encodeChunk(uint8, start, end) { let tmp; const output = []; for (let i = start; i < end; i += 3) { tmp = ((uint8[i] << 16) & 0xff0000) + ((uint8[i + 1] << 8) & 0xff00) + (uint8[i + 2] & 0xff); output.push(tripletToBase64(tmp)); } return output.join(""); } function fromByteArray(uint8) { let tmp; const len = uint8.length; const extraBytes = len % 3; // if we have 1 byte left, pad 2 bytes const parts = []; const maxChunkLength = 16383; // must be multiple of 3 // go through the array every three bytes, we'll deal with trailing stuff later for (let i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) { parts.push( encodeChunk( uint8, i, i + maxChunkLength > len2 ? len2 : i + maxChunkLength, ), ); } // pad the end with zeros, but make sure to not forget the extra bytes if (extraBytes === 1) { tmp = uint8[len - 1]; parts.push(lookup[tmp >> 2] + lookup[(tmp << 4) & 0x3f] + "=="); } else if (extraBytes === 2) { tmp = (uint8[len - 2] << 8) + uint8[len - 1]; parts.push( lookup[tmp >> 10] + lookup[(tmp >> 4) & 0x3f] + lookup[(tmp << 2) & 0x3f] + "=", ); } return parts.join(""); } const base64 = { byteLength, toByteArray, fromByteArray, }; window.TextEncoder = TextEncoder; window.TextDecoder = TextDecoder; window.atob = atob; window.btoa = btoa; window.__bootstrap = window.__bootstrap || {}; window.__bootstrap.base64 = base64; })(this);