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1393 lines
44 KiB
JavaScript
1393 lines
44 KiB
JavaScript
// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
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// The following code is based off of text-encoding at:
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// https://github.com/inexorabletash/text-encoding
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//
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// Anyone is free to copy, modify, publish, use, compile, sell, or
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// distribute this software, either in source code form or as a compiled
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// binary, for any purpose, commercial or non-commercial, and by any
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// means.
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//
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// In jurisdictions that recognize copyright laws, the author or authors
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// of this software dedicate any and all copyright interest in the
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// software to the public domain. We make this dedication for the benefit
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// of the public at large and to the detriment of our heirs and
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// successors. We intend this dedication to be an overt act of
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// relinquishment in perpetuity of all present and future rights to this
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// software under copyright law.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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// IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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// OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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// OTHER DEALINGS IN THE SOFTWARE.
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((window) => {
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const core = Deno.core;
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const CONTINUE = null;
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const END_OF_STREAM = -1;
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const FINISHED = -1;
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function decoderError(fatal) {
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if (fatal) {
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throw new TypeError("Decoder error.");
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}
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return 0xfffd; // default code point
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}
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function inRange(a, min, max) {
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return min <= a && a <= max;
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}
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function isASCIIByte(a) {
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return inRange(a, 0x00, 0x7f);
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}
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function stringToCodePoints(input) {
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const u = [];
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for (const c of input) {
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u.push(c.codePointAt(0));
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}
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return u;
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}
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class UTF8Encoder {
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handler(codePoint) {
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if (codePoint === END_OF_STREAM) {
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return "finished";
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}
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if (inRange(codePoint, 0x00, 0x7f)) {
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return [codePoint];
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}
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let count;
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let offset;
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if (inRange(codePoint, 0x0080, 0x07ff)) {
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count = 1;
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offset = 0xc0;
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} else if (inRange(codePoint, 0x0800, 0xffff)) {
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count = 2;
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offset = 0xe0;
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} else if (inRange(codePoint, 0x10000, 0x10ffff)) {
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count = 3;
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offset = 0xf0;
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} else {
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throw TypeError(
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`Code point out of range: \\x${codePoint.toString(16)}`,
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);
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}
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const bytes = [(codePoint >> (6 * count)) + offset];
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while (count > 0) {
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const temp = codePoint >> (6 * (count - 1));
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bytes.push(0x80 | (temp & 0x3f));
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count--;
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}
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return bytes;
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}
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}
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function atob(s) {
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s = String(s);
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s = s.replace(/[\t\n\f\r ]/g, "");
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if (s.length % 4 === 0) {
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s = s.replace(/==?$/, "");
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}
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const rem = s.length % 4;
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if (rem === 1 || /[^+/0-9A-Za-z]/.test(s)) {
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throw new DOMException(
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"The string to be decoded is not correctly encoded",
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"DataDecodeError",
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);
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}
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// base64-js requires length exactly times of 4
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if (rem > 0) {
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s = s.padEnd(s.length + (4 - rem), "=");
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}
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const byteArray = base64.toByteArray(s);
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let result = "";
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for (let i = 0; i < byteArray.length; i++) {
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result += String.fromCharCode(byteArray[i]);
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}
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return result;
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}
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function btoa(s) {
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const byteArray = [];
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for (let i = 0; i < s.length; i++) {
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const charCode = s[i].charCodeAt(0);
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if (charCode > 0xff) {
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throw new TypeError(
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"The string to be encoded contains characters " +
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"outside of the Latin1 range.",
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);
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}
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byteArray.push(charCode);
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}
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const result = base64.fromByteArray(Uint8Array.from(byteArray));
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return result;
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}
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class SingleByteDecoder {
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#index = [];
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#fatal = false;
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constructor(index, { ignoreBOM = false, fatal = false } = {}) {
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if (ignoreBOM) {
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throw new TypeError("Ignoring the BOM is available only with utf-8.");
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}
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this.#fatal = fatal;
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this.#index = index;
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}
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handler(_stream, byte) {
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if (byte === END_OF_STREAM) {
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return FINISHED;
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}
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if (isASCIIByte(byte)) {
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return byte;
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}
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const codePoint = this.#index[byte - 0x80];
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if (codePoint == null) {
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return decoderError(this.#fatal);
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}
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return codePoint;
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}
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}
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// The encodingMap is a hash of labels that are indexed by the conical
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// encoding.
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const encodingMap = {
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"windows-1252": [
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"ansi_x3.4-1968",
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"ascii",
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"cp1252",
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"cp819",
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"csisolatin1",
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"ibm819",
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"iso-8859-1",
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"iso-ir-100",
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"iso8859-1",
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"iso88591",
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"iso_8859-1",
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"iso_8859-1:1987",
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"l1",
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"latin1",
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"us-ascii",
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"windows-1252",
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"x-cp1252",
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],
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"utf-8": ["unicode-1-1-utf-8", "utf-8", "utf8"],
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ibm866: ["866", "cp866", "csibm866", "ibm866"],
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"iso-8859-2": [
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"csisolatin2",
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"iso-8859-2",
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"iso-ir-101",
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"iso8859-2",
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"iso88592",
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"iso_8859-2",
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"iso_8859-2:1987",
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"l2",
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"latin2",
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],
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"iso-8859-3": [
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"csisolatin3",
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"iso-8859-3",
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"iso-ir-109",
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"iso8859-3",
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"iso88593",
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"iso_8859-3",
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"iso_8859-3:1988",
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"l3",
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"latin3",
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],
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"iso-8859-4": [
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"csisolatin4",
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"iso-8859-4",
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"iso-ir-110",
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"iso8859-4",
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"iso88594",
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"iso_8859-4",
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"iso_8859-4:1988",
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"l4",
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"latin4",
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],
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"iso-8859-5": [
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"csisolatincyrillic",
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"cyrillic",
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"iso-8859-5",
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"iso-ir-144",
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"iso8859-5",
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"iso88595",
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"iso_8859-5",
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"iso_8859-5:1988",
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],
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"iso-8859-6": [
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"arabic",
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"asmo-708",
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"csiso88596e",
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"csiso88596i",
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"csisolatinarabic",
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"ecma-114",
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"iso-8859-6",
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"iso-8859-6-e",
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"iso-8859-6-i",
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"iso-ir-127",
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"iso8859-6",
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"iso88596",
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"iso_8859-6",
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"iso_8859-6:1987",
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],
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"iso-8859-7": [
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"csisolatingreek",
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"ecma-118",
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"elot_928",
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"greek",
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"greek8",
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"iso-8859-7",
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"iso-ir-126",
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"iso8859-7",
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"iso88597",
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"iso_8859-7",
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"iso_8859-7:1987",
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"sun_eu_greek",
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],
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"iso-8859-8": [
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"csiso88598e",
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"csisolatinhebrew",
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"hebrew",
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"iso-8859-8",
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"iso-8859-8-e",
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"iso-ir-138",
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"iso8859-8",
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"iso88598",
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"iso_8859-8",
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"iso_8859-8:1988",
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"visual",
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],
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"iso-8859-10": [
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"csisolatin6",
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"iso-8859-10",
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"iso-ir-157",
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"iso8859-10",
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"iso885910",
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"l6",
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"latin6",
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],
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"iso-8859-13": ["iso-8859-13", "iso8859-13", "iso885913"],
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"iso-8859-14": ["iso-8859-14", "iso8859-14", "iso885914"],
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"iso-8859-15": [
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"csisolatin9",
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"iso-8859-15",
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"iso8859-15",
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"iso885915",
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"iso_8859-15",
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"l9",
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],
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"iso-8859-16": ["iso-8859-16"],
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gbk: [
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"chinese",
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"csgb2312",
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"csiso58gb231280",
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"gb2312",
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"gb_2312",
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"gb_2312-80",
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"gbk",
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"iso-ir-58",
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"x-gbk",
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],
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gb18030: ["gb18030"],
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big5: ["big5", "big5-hkscs", "cn-big5", "csbig5", "x-x-big5"],
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"koi8-r": ["cskoi8r", "koi", "koi8", "koi8-r", "koi8_r"],
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"koi8-u": ["koi8-ru", "koi8-u"],
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macintosh: ["csmacintosh", "mac", "macintosh", "x-mac-roman"],
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"windows-874": [
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"dos-874",
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"iso-8859-11",
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"iso8859-11",
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"iso885911",
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"tis-620",
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"windows-874",
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],
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"windows-1250": ["cp1250", "windows-1250", "x-cp1250"],
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"windows-1251": ["cp1251", "windows-1251", "x-cp1251"],
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"windows-1253": ["cp1253", "windows-1253", "x-cp1253"],
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"windows-1254": [
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"cp1254",
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"csisolatin5",
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"iso-8859-9",
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"iso-ir-148",
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"iso8859-9",
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"iso88599",
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"iso_8859-9",
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"iso_8859-9:1989",
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"l5",
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"latin5",
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"windows-1254",
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"x-cp1254",
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],
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"windows-1255": ["cp1255", "windows-1255", "x-cp1255"],
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"windows-1256": ["cp1256", "windows-1256", "x-cp1256"],
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"windows-1257": ["cp1257", "windows-1257", "x-cp1257"],
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"windows-1258": ["cp1258", "windows-1258", "x-cp1258"],
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"x-mac-cyrillic": ["x-mac-cyrillic", "x-mac-ukrainian"],
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};
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// We convert these into a Map where every label resolves to its canonical
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// encoding type.
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const encodings = new Map();
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for (const key of Object.keys(encodingMap)) {
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const labels = encodingMap[key];
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for (const label of labels) {
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encodings.set(label, key);
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}
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}
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// A map of functions that return new instances of a decoder indexed by the
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// encoding type.
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const decoders = new Map();
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// Single byte decoders are an array of code point lookups
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const encodingIndexes = new Map();
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// deno-fmt-ignore
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encodingIndexes.set("windows-1252", [
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8364, 129, 8218, 402, 8222, 8230, 8224, 8225, 710,
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8240, 352, 8249, 338, 141, 381, 143, 144,
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8216, 8217, 8220, 8221, 8226, 8211, 8212, 732,
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8482, 353, 8250, 339, 157, 382, 376, 160,
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161, 162, 163, 164, 165, 166, 167, 168,
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169, 170, 171, 172, 173, 174, 175, 176,
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177, 178, 179, 180, 181, 182, 183, 184,
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185, 186, 187, 188, 189, 190, 191, 192,
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193, 194, 195, 196, 197, 198, 199, 200,
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201, 202, 203, 204, 205, 206, 207, 208,
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209, 210, 211, 212, 213, 214, 215, 216,
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217, 218, 219, 220, 221, 222, 223, 224,
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225, 226, 227, 228, 229, 230, 231, 232,
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233, 234, 235, 236, 237, 238, 239, 240,
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241, 242, 243, 244, 245, 246, 247, 248,
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249, 250, 251, 252, 253, 254, 255,
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]);
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// deno-fmt-ignore
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encodingIndexes.set("ibm866", [
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1040, 1041, 1042, 1043, 1044, 1045, 1046, 1047,
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1048, 1049, 1050, 1051, 1052, 1053, 1054, 1055,
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1056, 1057, 1058, 1059, 1060, 1061, 1062, 1063,
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1064, 1065, 1066, 1067, 1068, 1069, 1070, 1071,
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1072, 1073, 1074, 1075, 1076, 1077, 1078, 1079,
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1080, 1081, 1082, 1083, 1084, 1085, 1086, 1087,
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9617, 9618, 9619, 9474, 9508, 9569, 9570, 9558,
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9557, 9571, 9553, 9559, 9565, 9564, 9563, 9488,
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9492, 9524, 9516, 9500, 9472, 9532, 9566, 9567,
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9562, 9556, 9577, 9574, 9568, 9552, 9580, 9575,
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9576, 9572, 9573, 9561, 9560, 9554, 9555, 9579,
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9578, 9496, 9484, 9608, 9604, 9612, 9616, 9600,
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1088, 1089, 1090, 1091, 1092, 1093, 1094, 1095,
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1096, 1097, 1098, 1099, 1100, 1101, 1102, 1103,
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1025, 1105, 1028, 1108, 1031, 1111, 1038, 1118,
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176, 8729, 183, 8730, 8470, 164, 9632, 160,
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]);
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// deno-fmt-ignore
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encodingIndexes.set("iso-8859-2", [
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128, 129, 130, 131, 132, 133, 134, 135,
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136, 137, 138, 139, 140, 141, 142, 143,
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144, 145, 146, 147, 148, 149, 150, 151,
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152, 153, 154, 155, 156, 157, 158, 159,
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160, 260, 728, 321, 164, 317, 346, 167,
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168, 352, 350, 356, 377, 173, 381, 379,
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|
176, 261, 731, 322, 180, 318, 347, 711,
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184, 353, 351, 357, 378, 733, 382, 380,
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340, 193, 194, 258, 196, 313, 262, 199,
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268, 201, 280, 203, 282, 205, 206, 270,
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272, 323, 327, 211, 212, 336, 214, 215,
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|
344, 366, 218, 368, 220, 221, 354, 223,
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341, 225, 226, 259, 228, 314, 263, 231,
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269, 233, 281, 235, 283, 237, 238, 271,
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273, 324, 328, 243, 244, 337, 246, 247,
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345, 367, 250, 369, 252, 253, 355, 729,
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]);
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|
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// deno-fmt-ignore
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encodingIndexes.set("iso-8859-3", [
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128, 129, 130, 131, 132, 133, 134, 135,
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136, 137, 138, 139, 140, 141, 142, 143,
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144, 145, 146, 147, 148, 149, 150, 151,
|
|
152, 153, 154, 155, 156, 157, 158, 159,
|
|
160, 294, 728, 163, 164, null, 292, 167,
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|
168, 304, 350, 286, 308, 173, null, 379,
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|
176, 295, 178, 179, 180, 181, 293, 183,
|
|
184, 305, 351, 287, 309, 189, null, 380,
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|
192, 193, 194, null, 196, 266, 264, 199,
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200, 201, 202, 203, 204, 205, 206, 207,
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null, 209, 210, 211, 212, 288, 214, 215,
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|
284, 217, 218, 219, 220, 364, 348, 223,
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224, 225, 226, null, 228, 267, 265, 231,
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232, 233, 234, 235, 236, 237, 238, 239,
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null, 241, 242, 243, 244, 289, 246, 247,
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285, 249, 250, 251, 252, 365, 349, 729,
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]);
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// deno-fmt-ignore
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encodingIndexes.set("iso-8859-4", [
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128, 129, 130, 131, 132, 133, 134, 135,
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136, 137, 138, 139, 140, 141, 142, 143,
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144, 145, 146, 147, 148, 149, 150, 151,
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152, 153, 154, 155, 156, 157, 158, 159,
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160, 260, 312, 342, 164, 296, 315, 167,
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168, 352, 274, 290, 358, 173, 381, 175,
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176, 261, 731, 343, 180, 297, 316, 711,
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184, 353, 275, 291, 359, 330, 382, 331,
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256, 193, 194, 195, 196, 197, 198, 302,
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268, 201, 280, 203, 278, 205, 206, 298,
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272, 325, 332, 310, 212, 213, 214, 215,
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216, 370, 218, 219, 220, 360, 362, 223,
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257, 225, 226, 227, 228, 229, 230, 303,
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269, 233, 281, 235, 279, 237, 238, 299,
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273, 326, 333, 311, 244, 245, 246, 247,
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248, 371, 250, 251, 252, 361, 363, 729,
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]);
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// deno-fmt-ignore
|
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encodingIndexes.set("iso-8859-5", [
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128, 129, 130, 131, 132, 133, 134, 135,
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136, 137, 138, 139, 140, 141, 142, 143,
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144, 145, 146, 147, 148, 149, 150, 151,
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152, 153, 154, 155, 156, 157, 158, 159,
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160, 1025, 1026, 1027, 1028, 1029, 1030, 1031,
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1032, 1033, 1034, 1035, 1036, 173, 1038, 1039,
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1040, 1041, 1042, 1043, 1044, 1045, 1046, 1047,
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1048, 1049, 1050, 1051, 1052, 1053, 1054, 1055,
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1056, 1057, 1058, 1059, 1060, 1061, 1062, 1063,
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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;
|
|
}
|
|
label = String(label).trim().toLowerCase();
|
|
const encoding = encodings.get(label);
|
|
if (!encoding) {
|
|
throw new RangeError(
|
|
`The encoding label provided ('${label}') is invalid.`,
|
|
);
|
|
}
|
|
if (!decoders.has(encoding) && encoding !== "utf-8") {
|
|
throw new TypeError(`Internal decoder ('${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 = "") {
|
|
// 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 <bjoern@hoehrmann.de>
|
|
//
|
|
// 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);
|