| 1 | "use strict";
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| 2 | Object.defineProperty(exports, "__esModule", { value: true });
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| 3 | exports.toUtf8 = exports.fromUtf8 = void 0;
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| 4 | const fromUtf8 = (input) => {
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| 5 | const bytes = [];
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| 6 | for (let i = 0, len = input.length; i < len; i++) {
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| 7 | const value = input.charCodeAt(i);
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| 8 | if (value < 0x80) {
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| 9 | bytes.push(value);
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| 10 | }
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| 11 | else if (value < 0x800) {
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| 12 | bytes.push((value >> 6) | 0b11000000, (value & 0b111111) | 0b10000000);
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| 13 | }
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| 14 | else if (i + 1 < input.length && (value & 0xfc00) === 0xd800 && (input.charCodeAt(i + 1) & 0xfc00) === 0xdc00) {
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| 15 | const surrogatePair = 0x10000 + ((value & 0b1111111111) << 10) + (input.charCodeAt(++i) & 0b1111111111);
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| 16 | bytes.push((surrogatePair >> 18) | 0b11110000, ((surrogatePair >> 12) & 0b111111) | 0b10000000, ((surrogatePair >> 6) & 0b111111) | 0b10000000, (surrogatePair & 0b111111) | 0b10000000);
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| 17 | }
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| 18 | else {
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| 19 | bytes.push((value >> 12) | 0b11100000, ((value >> 6) & 0b111111) | 0b10000000, (value & 0b111111) | 0b10000000);
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| 20 | }
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| 21 | }
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| 22 | return Uint8Array.from(bytes);
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| 23 | };
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| 24 | exports.fromUtf8 = fromUtf8;
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| 25 | const toUtf8 = (input) => {
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| 26 | let decoded = "";
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| 27 | for (let i = 0, len = input.length; i < len; i++) {
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| 28 | const byte = input[i];
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| 29 | if (byte < 0x80) {
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| 30 | decoded += String.fromCharCode(byte);
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| 31 | }
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| 32 | else if (0b11000000 <= byte && byte < 0b11100000) {
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| 33 | const nextByte = input[++i];
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| 34 | decoded += String.fromCharCode(((byte & 0b11111) << 6) | (nextByte & 0b111111));
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| 35 | }
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| 36 | else if (0b11110000 <= byte && byte < 0b101101101) {
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| 37 | const surrogatePair = [byte, input[++i], input[++i], input[++i]];
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| 38 | const encoded = "%" + surrogatePair.map((byteValue) => byteValue.toString(16)).join("%");
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| 39 | decoded += decodeURIComponent(encoded);
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| 40 | }
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| 41 | else {
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| 42 | decoded += String.fromCharCode(((byte & 0b1111) << 12) | ((input[++i] & 0b111111) << 6) | (input[++i] & 0b111111));
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| 43 | }
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| 44 | }
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| 45 | return decoded;
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| 46 | };
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| 47 | exports.toUtf8 = toUtf8;
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