5c3ed62b20fffebf659dd1f5fad03e2baf870470c1e7d611afde1f349ee4de3e.json raw

   1  {"ast":null,"code":"'use strict';\n\nexports.byteLength = byteLength;\nexports.toByteArray = toByteArray;\nexports.fromByteArray = fromByteArray;\nvar lookup = [];\nvar revLookup = [];\nvar Arr = typeof Uint8Array !== 'undefined' ? Uint8Array : Array;\nvar code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';\nfor (var i = 0, len = code.length; i < len; ++i) {\n  lookup[i] = code[i];\n  revLookup[code.charCodeAt(i)] = i;\n}\n\n// Support decoding URL-safe base64 strings, as Node.js does.\n// See: https://en.wikipedia.org/wiki/Base64#URL_applications\nrevLookup['-'.charCodeAt(0)] = 62;\nrevLookup['_'.charCodeAt(0)] = 63;\nfunction getLens(b64) {\n  var len = b64.length;\n  if (len % 4 > 0) {\n    throw new Error('Invalid string. Length must be a multiple of 4');\n  }\n\n  // Trim off extra bytes after placeholder bytes are found\n  // See: https://github.com/beatgammit/base64-js/issues/42\n  var validLen = b64.indexOf('=');\n  if (validLen === -1) validLen = len;\n  var placeHoldersLen = validLen === len ? 0 : 4 - validLen % 4;\n  return [validLen, placeHoldersLen];\n}\n\n// base64 is 4/3 + up to two characters of the original data\nfunction byteLength(b64) {\n  var lens = getLens(b64);\n  var validLen = lens[0];\n  var placeHoldersLen = lens[1];\n  return (validLen + placeHoldersLen) * 3 / 4 - placeHoldersLen;\n}\nfunction _byteLength(b64, validLen, placeHoldersLen) {\n  return (validLen + placeHoldersLen) * 3 / 4 - placeHoldersLen;\n}\nfunction toByteArray(b64) {\n  var tmp;\n  var lens = getLens(b64);\n  var validLen = lens[0];\n  var placeHoldersLen = lens[1];\n  var arr = new Arr(_byteLength(b64, validLen, placeHoldersLen));\n  var curByte = 0;\n\n  // if there are placeholders, only get up to the last complete 4 chars\n  var len = placeHoldersLen > 0 ? validLen - 4 : validLen;\n  var i;\n  for (i = 0; i < len; i += 4) {\n    tmp = revLookup[b64.charCodeAt(i)] << 18 | revLookup[b64.charCodeAt(i + 1)] << 12 | revLookup[b64.charCodeAt(i + 2)] << 6 | revLookup[b64.charCodeAt(i + 3)];\n    arr[curByte++] = tmp >> 16 & 0xFF;\n    arr[curByte++] = tmp >> 8 & 0xFF;\n    arr[curByte++] = tmp & 0xFF;\n  }\n  if (placeHoldersLen === 2) {\n    tmp = revLookup[b64.charCodeAt(i)] << 2 | revLookup[b64.charCodeAt(i + 1)] >> 4;\n    arr[curByte++] = tmp & 0xFF;\n  }\n  if (placeHoldersLen === 1) {\n    tmp = revLookup[b64.charCodeAt(i)] << 10 | revLookup[b64.charCodeAt(i + 1)] << 4 | revLookup[b64.charCodeAt(i + 2)] >> 2;\n    arr[curByte++] = tmp >> 8 & 0xFF;\n    arr[curByte++] = tmp & 0xFF;\n  }\n  return arr;\n}\nfunction tripletToBase64(num) {\n  return lookup[num >> 18 & 0x3F] + lookup[num >> 12 & 0x3F] + lookup[num >> 6 & 0x3F] + lookup[num & 0x3F];\n}\nfunction encodeChunk(uint8, start, end) {\n  var tmp;\n  var output = [];\n  for (var i = start; i < end; i += 3) {\n    tmp = (uint8[i] << 16 & 0xFF0000) + (uint8[i + 1] << 8 & 0xFF00) + (uint8[i + 2] & 0xFF);\n    output.push(tripletToBase64(tmp));\n  }\n  return output.join('');\n}\nfunction fromByteArray(uint8) {\n  var tmp;\n  var len = uint8.length;\n  var extraBytes = len % 3; // if we have 1 byte left, pad 2 bytes\n  var parts = [];\n  var maxChunkLength = 16383; // must be multiple of 3\n\n  // go through the array every three bytes, we'll deal with trailing stuff later\n  for (var i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) {\n    parts.push(encodeChunk(uint8, i, i + maxChunkLength > len2 ? len2 : i + maxChunkLength));\n  }\n\n  // pad the end with zeros, but make sure to not forget the extra bytes\n  if (extraBytes === 1) {\n    tmp = uint8[len - 1];\n    parts.push(lookup[tmp >> 2] + lookup[tmp << 4 & 0x3F] + '==');\n  } else if (extraBytes === 2) {\n    tmp = (uint8[len - 2] << 8) + uint8[len - 1];\n    parts.push(lookup[tmp >> 10] + lookup[tmp >> 4 & 0x3F] + lookup[tmp << 2 & 0x3F] + '=');\n  }\n  return parts.join('');\n}","map":null,"metadata":{},"sourceType":"script","externalDependencies":[]}