@daysnap/utils/es/chunk-XR4BSWOV.js

通用的工具库

// src/decode.ts
var b64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
var b64re = (
  // eslint-disable-next-line no-useless-escape
  /^(?:[A-Za-z\d+\/]{4})*?(?:[A-Za-z\d+\/]{2}(?:==)?|[A-Za-z\d+\/]{3}=?)?$/
);
var btoa = function(string) {
  string = String(string);
  let bitmap, a, b, c, result = "", i = 0, rest = string.length % 3;
  for (; i < string.length; ) {
    if ((a = string.charCodeAt(i++)) > 255 || (b = string.charCodeAt(i++)) > 255 || (c = string.charCodeAt(i++)) > 255)
      throw new TypeError(
        "Failed to execute 'btoa' on 'Window': The string to be encoded contains characters outside of the Latin1 range."
      );
    bitmap = a << 16 | b << 8 | c;
    result += b64.charAt(bitmap >> 18 & 63) + b64.charAt(bitmap >> 12 & 63) + b64.charAt(bitmap >> 6 & 63) + b64.charAt(bitmap & 63);
  }
  return rest ? result.slice(0, rest - 3) + "===".substring(rest) : result;
};
var atob = function(string) {
  string = String(string).replace(/[\t\n\f\r ]+/g, "");
  if (!b64re.test(string))
    throw new TypeError(
      "Failed to execute 'atob' on 'Window': The string to be decoded is not correctly encoded."
    );
  string += "==".slice(2 - (string.length & 3));
  let bitmap, result = "", r1, r2, i = 0;
  for (; i < string.length; ) {
    bitmap = b64.indexOf(string.charAt(i++)) << 18 | b64.indexOf(string.charAt(i++)) << 12 | (r1 = b64.indexOf(string.charAt(i++))) << 6 | (r2 = b64.indexOf(string.charAt(i++)));
    result += r1 === 64 ? String.fromCharCode(bitmap >> 16 & 255) : r2 === 64 ? String.fromCharCode(bitmap >> 16 & 255, bitmap >> 8 & 255) : String.fromCharCode(
      bitmap >> 16 & 255,
      bitmap >> 8 & 255,
      bitmap & 255
    );
  }
  return result;
};

export {
  btoa,
  atob
};