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- /*
- * base64-arraybuffer 1.0.2 <https://github.com/niklasvh/base64-arraybuffer>
- * Copyright (c) 2022 Niklas von Hertzen <https://hertzen.com>
- * Released under MIT License
- */
- (function (global, factory) {
- typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
- typeof define === 'function' && define.amd ? define(['exports'], factory) :
- (global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory(global['base64-arraybuffer'] = {}));
- }(this, (function (exports) { 'use strict';
- var chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
- // Use a lookup table to find the index.
- var lookup = typeof Uint8Array === 'undefined' ? [] : new Uint8Array(256);
- for (var i = 0; i < chars.length; i++) {
- lookup[chars.charCodeAt(i)] = i;
- }
- var encode = function (arraybuffer) {
- var bytes = new Uint8Array(arraybuffer), i, len = bytes.length, base64 = '';
- for (i = 0; i < len; i += 3) {
- base64 += chars[bytes[i] >> 2];
- base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];
- base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];
- base64 += chars[bytes[i + 2] & 63];
- }
- if (len % 3 === 2) {
- base64 = base64.substring(0, base64.length - 1) + '=';
- }
- else if (len % 3 === 1) {
- base64 = base64.substring(0, base64.length - 2) + '==';
- }
- return base64;
- };
- var decode = function (base64) {
- var bufferLength = base64.length * 0.75, len = base64.length, i, p = 0, encoded1, encoded2, encoded3, encoded4;
- if (base64[base64.length - 1] === '=') {
- bufferLength--;
- if (base64[base64.length - 2] === '=') {
- bufferLength--;
- }
- }
- var arraybuffer = new ArrayBuffer(bufferLength), bytes = new Uint8Array(arraybuffer);
- for (i = 0; i < len; i += 4) {
- encoded1 = lookup[base64.charCodeAt(i)];
- encoded2 = lookup[base64.charCodeAt(i + 1)];
- encoded3 = lookup[base64.charCodeAt(i + 2)];
- encoded4 = lookup[base64.charCodeAt(i + 3)];
- bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);
- bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);
- bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);
- }
- return arraybuffer;
- };
- exports.decode = decode;
- exports.encode = encode;
- Object.defineProperty(exports, '__esModule', { value: true });
- })));
- //# sourceMappingURL=base64-arraybuffer.umd.js.map
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