Sha256: 35ba28767d4e3bc8f96603de57ff9e0c586deeb3ea6500066552ff89844e73d3
Contents?: true
Size: 1.24 KB
Versions: 9
Compression:
Stored size: 1.24 KB
Contents
/**
* The code was extracted from:
* https://github.com/davidchambers/Base64.js
*/
var chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';
function InvalidCharacterError(message) {
this.message = message;
}
InvalidCharacterError.prototype = new Error();
InvalidCharacterError.prototype.name = 'InvalidCharacterError';
function polyfill (input) {
var str = String(input).replace(/=+$/, '');
if (str.length % 4 == 1) {
throw new InvalidCharacterError("'atob' failed: The string to be decoded is not correctly encoded.");
}
for (
// initialize result and counters
var bc = 0, bs, buffer, idx = 0, output = '';
// get next character
buffer = str.charAt(idx++);
// character found in table? initialize bit storage and add its ascii value;
~buffer && (bs = bc % 4 ? bs * 64 + buffer : buffer,
// and if not first of each 4 characters,
// convert the first 8 bits to one ascii character
bc++ % 4) ? output += String.fromCharCode(255 & bs >> (-2 * bc & 6)) : 0
) {
// try to find character in table (0-63, not found => -1)
buffer = chars.indexOf(buffer);
}
return output;
}
module.exports = typeof window !== 'undefined' && window.atob && window.atob.bind(window) || polyfill;
Version data entries
9 entries across 9 versions & 1 rubygems