UNPKG

coinley-checkout

Version:

A React SDK for Coinley cryptocurrency payment processing with multi-network support

1 lines 117 kB
{"version":3,"file":"index-2161e56b.mjs","sources":["../node_modules/vite-plugin-node-polyfills/shims/buffer/dist/index.js"],"sourcesContent":["var buffer = {};\n\nvar base64Js = {};\n\nbase64Js.byteLength = byteLength;\nbase64Js.toByteArray = toByteArray;\nbase64Js.fromByteArray = fromByteArray;\n\nvar lookup = [];\nvar revLookup = [];\nvar Arr = typeof Uint8Array !== 'undefined' ? Uint8Array : Array;\n\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;\n\nfunction getLens (b64) {\n var len = b64.length;\n\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\n var placeHoldersLen = validLen === len\n ? 0\n : 4 - (validLen % 4);\n\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}\n\nfunction _byteLength (b64, validLen, placeHoldersLen) {\n return ((validLen + placeHoldersLen) * 3 / 4) - placeHoldersLen\n}\n\nfunction toByteArray (b64) {\n var tmp;\n var lens = getLens(b64);\n var validLen = lens[0];\n var placeHoldersLen = lens[1];\n\n var arr = new Arr(_byteLength(b64, validLen, placeHoldersLen));\n\n var curByte = 0;\n\n // if there are placeholders, only get up to the last complete 4 chars\n var len = placeHoldersLen > 0\n ? validLen - 4\n : validLen;\n\n var i;\n for (i = 0; i < len; i += 4) {\n tmp =\n (revLookup[b64.charCodeAt(i)] << 18) |\n (revLookup[b64.charCodeAt(i + 1)] << 12) |\n (revLookup[b64.charCodeAt(i + 2)] << 6) |\n revLookup[b64.charCodeAt(i + 3)];\n arr[curByte++] = (tmp >> 16) & 0xFF;\n arr[curByte++] = (tmp >> 8) & 0xFF;\n arr[curByte++] = tmp & 0xFF;\n }\n\n if (placeHoldersLen === 2) {\n tmp =\n (revLookup[b64.charCodeAt(i)] << 2) |\n (revLookup[b64.charCodeAt(i + 1)] >> 4);\n arr[curByte++] = tmp & 0xFF;\n }\n\n if (placeHoldersLen === 1) {\n tmp =\n (revLookup[b64.charCodeAt(i)] << 10) |\n (revLookup[b64.charCodeAt(i + 1)] << 4) |\n (revLookup[b64.charCodeAt(i + 2)] >> 2);\n arr[curByte++] = (tmp >> 8) & 0xFF;\n arr[curByte++] = tmp & 0xFF;\n }\n\n return arr\n}\n\nfunction tripletToBase64 (num) {\n return lookup[num >> 18 & 0x3F] +\n lookup[num >> 12 & 0x3F] +\n lookup[num >> 6 & 0x3F] +\n lookup[num & 0x3F]\n}\n\nfunction encodeChunk (uint8, start, end) {\n var tmp;\n var output = [];\n for (var i = start; i < end; i += 3) {\n tmp =\n ((uint8[i] << 16) & 0xFF0000) +\n ((uint8[i + 1] << 8) & 0xFF00) +\n (uint8[i + 2] & 0xFF);\n output.push(tripletToBase64(tmp));\n }\n return output.join('')\n}\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(\n lookup[tmp >> 2] +\n lookup[(tmp << 4) & 0x3F] +\n '=='\n );\n } else if (extraBytes === 2) {\n tmp = (uint8[len - 2] << 8) + uint8[len - 1];\n parts.push(\n lookup[tmp >> 10] +\n lookup[(tmp >> 4) & 0x3F] +\n lookup[(tmp << 2) & 0x3F] +\n '='\n );\n }\n\n return parts.join('')\n}\n\nvar ieee754 = {};\n\n/*! ieee754. BSD-3-Clause License. Feross Aboukhadijeh <https://feross.org/opensource> */\n\nieee754.read = function (buffer, offset, isLE, mLen, nBytes) {\n var e, m;\n var eLen = (nBytes * 8) - mLen - 1;\n var eMax = (1 << eLen) - 1;\n var eBias = eMax >> 1;\n var nBits = -7;\n var i = isLE ? (nBytes - 1) : 0;\n var d = isLE ? -1 : 1;\n var s = buffer[offset + i];\n\n i += d;\n\n e = s & ((1 << (-nBits)) - 1);\n s >>= (-nBits);\n nBits += eLen;\n for (; nBits > 0; e = (e * 256) + buffer[offset + i], i += d, nBits -= 8) {}\n\n m = e & ((1 << (-nBits)) - 1);\n e >>= (-nBits);\n nBits += mLen;\n for (; nBits > 0; m = (m * 256) + buffer[offset + i], i += d, nBits -= 8) {}\n\n if (e === 0) {\n e = 1 - eBias;\n } else if (e === eMax) {\n return m ? NaN : ((s ? -1 : 1) * Infinity)\n } else {\n m = m + Math.pow(2, mLen);\n e = e - eBias;\n }\n return (s ? -1 : 1) * m * Math.pow(2, e - mLen)\n};\n\nieee754.write = function (buffer, value, offset, isLE, mLen, nBytes) {\n var e, m, c;\n var eLen = (nBytes * 8) - mLen - 1;\n var eMax = (1 << eLen) - 1;\n var eBias = eMax >> 1;\n var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0);\n var i = isLE ? 0 : (nBytes - 1);\n var d = isLE ? 1 : -1;\n var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0;\n\n value = Math.abs(value);\n\n if (isNaN(value) || value === Infinity) {\n m = isNaN(value) ? 1 : 0;\n e = eMax;\n } else {\n e = Math.floor(Math.log(value) / Math.LN2);\n if (value * (c = Math.pow(2, -e)) < 1) {\n e--;\n c *= 2;\n }\n if (e + eBias >= 1) {\n value += rt / c;\n } else {\n value += rt * Math.pow(2, 1 - eBias);\n }\n if (value * c >= 2) {\n e++;\n c /= 2;\n }\n\n if (e + eBias >= eMax) {\n m = 0;\n e = eMax;\n } else if (e + eBias >= 1) {\n m = ((value * c) - 1) * Math.pow(2, mLen);\n e = e + eBias;\n } else {\n m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen);\n e = 0;\n }\n }\n\n for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}\n\n e = (e << mLen) | m;\n eLen += mLen;\n for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}\n\n buffer[offset + i - d] |= s * 128;\n};\n\n/*!\n * The buffer module from node.js, for the browser.\n *\n * @author Feross Aboukhadijeh <https://feross.org>\n * @license MIT\n */\n\n(function (exports) {\n\n\tconst base64 = base64Js;\n\tconst ieee754$1 = ieee754;\n\tconst customInspectSymbol =\n\t (typeof Symbol === 'function' && typeof Symbol['for'] === 'function') // eslint-disable-line dot-notation\n\t ? Symbol['for']('nodejs.util.inspect.custom') // eslint-disable-line dot-notation\n\t : null;\n\n\texports.Buffer = Buffer;\n\texports.SlowBuffer = SlowBuffer;\n\texports.INSPECT_MAX_BYTES = 50;\n\n\tconst K_MAX_LENGTH = 0x7fffffff;\n\texports.kMaxLength = K_MAX_LENGTH;\n\tconst { Uint8Array: GlobalUint8Array, ArrayBuffer: GlobalArrayBuffer, SharedArrayBuffer: GlobalSharedArrayBuffer } = globalThis;\n\n\t/**\n\t * If `Buffer.TYPED_ARRAY_SUPPORT`:\n\t * === true Use Uint8Array implementation (fastest)\n\t * === false Print warning and recommend using `buffer` v4.x which has an Object\n\t * implementation (most compatible, even IE6)\n\t *\n\t * Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+,\n\t * Opera 11.6+, iOS 4.2+.\n\t *\n\t * We report that the browser does not support typed arrays if the are not subclassable\n\t * using __proto__. Firefox 4-29 lacks support for adding new properties to `Uint8Array`\n\t * (See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438). IE 10 lacks support\n\t * for __proto__ and has a buggy typed array implementation.\n\t */\n\tBuffer.TYPED_ARRAY_SUPPORT = typedArraySupport();\n\n\tif (!Buffer.TYPED_ARRAY_SUPPORT && typeof console !== 'undefined' &&\n\t typeof console.error === 'function') {\n\t console.error(\n\t 'This browser lacks typed array (Uint8Array) support which is required by ' +\n\t '`buffer` v5.x. Use `buffer` v4.x if you require old browser support.'\n\t );\n\t}\n\n\tfunction typedArraySupport () {\n\t // Can typed array instances can be augmented?\n\t try {\n\t const arr = new GlobalUint8Array(1);\n\t const proto = { foo: function () { return 42 } };\n\t Object.setPrototypeOf(proto, GlobalUint8Array.prototype);\n\t Object.setPrototypeOf(arr, proto);\n\t return arr.foo() === 42\n\t } catch (e) {\n\t return false\n\t }\n\t}\n\n\tObject.defineProperty(Buffer.prototype, 'parent', {\n\t enumerable: true,\n\t get: function () {\n\t if (!Buffer.isBuffer(this)) return undefined\n\t return this.buffer\n\t }\n\t});\n\n\tObject.defineProperty(Buffer.prototype, 'offset', {\n\t enumerable: true,\n\t get: function () {\n\t if (!Buffer.isBuffer(this)) return undefined\n\t return this.byteOffset\n\t }\n\t});\n\n\tfunction createBuffer (length) {\n\t if (length > K_MAX_LENGTH) {\n\t throw new RangeError('The value \"' + length + '\" is invalid for option \"size\"')\n\t }\n\t // Return an augmented `Uint8Array` instance\n\t const buf = new GlobalUint8Array(length);\n\t Object.setPrototypeOf(buf, Buffer.prototype);\n\t return buf\n\t}\n\n\t/**\n\t * The Buffer constructor returns instances of `Uint8Array` that have their\n\t * prototype changed to `Buffer.prototype`. Furthermore, `Buffer` is a subclass of\n\t * `Uint8Array`, so the returned instances will have all the node `Buffer` methods\n\t * and the `Uint8Array` methods. Square bracket notation works as expected -- it\n\t * returns a single octet.\n\t *\n\t * The `Uint8Array` prototype remains unmodified.\n\t */\n\n\tfunction Buffer (arg, encodingOrOffset, length) {\n\t // Common case.\n\t if (typeof arg === 'number') {\n\t if (typeof encodingOrOffset === 'string') {\n\t throw new TypeError(\n\t 'The \"string\" argument must be of type string. Received type number'\n\t )\n\t }\n\t return allocUnsafe(arg)\n\t }\n\t return from(arg, encodingOrOffset, length)\n\t}\n\n\tBuffer.poolSize = 8192; // not used by this implementation\n\n\tfunction from (value, encodingOrOffset, length) {\n\t if (typeof value === 'string') {\n\t return fromString(value, encodingOrOffset)\n\t }\n\n\t if (GlobalArrayBuffer.isView(value)) {\n\t return fromArrayView(value)\n\t }\n\n\t if (value == null) {\n\t throw new TypeError(\n\t 'The first argument must be one of type string, Buffer, ArrayBuffer, Array, ' +\n\t 'or Array-like Object. Received type ' + (typeof value)\n\t )\n\t }\n\n\t if (isInstance(value, GlobalArrayBuffer) ||\n\t (value && isInstance(value.buffer, GlobalArrayBuffer))) {\n\t return fromArrayBuffer(value, encodingOrOffset, length)\n\t }\n\n\t if (typeof GlobalSharedArrayBuffer !== 'undefined' &&\n\t (isInstance(value, GlobalSharedArrayBuffer) ||\n\t (value && isInstance(value.buffer, GlobalSharedArrayBuffer)))) {\n\t return fromArrayBuffer(value, encodingOrOffset, length)\n\t }\n\n\t if (typeof value === 'number') {\n\t throw new TypeError(\n\t 'The \"value\" argument must not be of type number. Received type number'\n\t )\n\t }\n\n\t const valueOf = value.valueOf && value.valueOf();\n\t if (valueOf != null && valueOf !== value) {\n\t return Buffer.from(valueOf, encodingOrOffset, length)\n\t }\n\n\t const b = fromObject(value);\n\t if (b) return b\n\n\t if (typeof Symbol !== 'undefined' && Symbol.toPrimitive != null &&\n\t typeof value[Symbol.toPrimitive] === 'function') {\n\t return Buffer.from(value[Symbol.toPrimitive]('string'), encodingOrOffset, length)\n\t }\n\n\t throw new TypeError(\n\t 'The first argument must be one of type string, Buffer, ArrayBuffer, Array, ' +\n\t 'or Array-like Object. Received type ' + (typeof value)\n\t )\n\t}\n\n\t/**\n\t * Functionally equivalent to Buffer(arg, encoding) but throws a TypeError\n\t * if value is a number.\n\t * Buffer.from(str[, encoding])\n\t * Buffer.from(array)\n\t * Buffer.from(buffer)\n\t * Buffer.from(arrayBuffer[, byteOffset[, length]])\n\t **/\n\tBuffer.from = function (value, encodingOrOffset, length) {\n\t return from(value, encodingOrOffset, length)\n\t};\n\n\t// Note: Change prototype *after* Buffer.from is defined to workaround Chrome bug:\n\t// https://github.com/feross/buffer/pull/148\n\tObject.setPrototypeOf(Buffer.prototype, GlobalUint8Array.prototype);\n\tObject.setPrototypeOf(Buffer, GlobalUint8Array);\n\n\tfunction assertSize (size) {\n\t if (typeof size !== 'number') {\n\t throw new TypeError('\"size\" argument must be of type number')\n\t } else if (size < 0) {\n\t throw new RangeError('The value \"' + size + '\" is invalid for option \"size\"')\n\t }\n\t}\n\n\tfunction alloc (size, fill, encoding) {\n\t assertSize(size);\n\t if (size <= 0) {\n\t return createBuffer(size)\n\t }\n\t if (fill !== undefined) {\n\t // Only pay attention to encoding if it's a string. This\n\t // prevents accidentally sending in a number that would\n\t // be interpreted as a start offset.\n\t return typeof encoding === 'string'\n\t ? createBuffer(size).fill(fill, encoding)\n\t : createBuffer(size).fill(fill)\n\t }\n\t return createBuffer(size)\n\t}\n\n\t/**\n\t * Creates a new filled Buffer instance.\n\t * alloc(size[, fill[, encoding]])\n\t **/\n\tBuffer.alloc = function (size, fill, encoding) {\n\t return alloc(size, fill, encoding)\n\t};\n\n\tfunction allocUnsafe (size) {\n\t assertSize(size);\n\t return createBuffer(size < 0 ? 0 : checked(size) | 0)\n\t}\n\n\t/**\n\t * Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance.\n\t * */\n\tBuffer.allocUnsafe = function (size) {\n\t return allocUnsafe(size)\n\t};\n\t/**\n\t * Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance.\n\t */\n\tBuffer.allocUnsafeSlow = function (size) {\n\t return allocUnsafe(size)\n\t};\n\n\tfunction fromString (string, encoding) {\n\t if (typeof encoding !== 'string' || encoding === '') {\n\t encoding = 'utf8';\n\t }\n\n\t if (!Buffer.isEncoding(encoding)) {\n\t throw new TypeError('Unknown encoding: ' + encoding)\n\t }\n\n\t const length = byteLength(string, encoding) | 0;\n\t let buf = createBuffer(length);\n\n\t const actual = buf.write(string, encoding);\n\n\t if (actual !== length) {\n\t // Writing a hex string, for example, that contains invalid characters will\n\t // cause everything after the first invalid character to be ignored. (e.g.\n\t // 'abxxcd' will be treated as 'ab')\n\t buf = buf.slice(0, actual);\n\t }\n\n\t return buf\n\t}\n\n\tfunction fromArrayLike (array) {\n\t const length = array.length < 0 ? 0 : checked(array.length) | 0;\n\t const buf = createBuffer(length);\n\t for (let i = 0; i < length; i += 1) {\n\t buf[i] = array[i] & 255;\n\t }\n\t return buf\n\t}\n\n\tfunction fromArrayView (arrayView) {\n\t if (isInstance(arrayView, GlobalUint8Array)) {\n\t const copy = new GlobalUint8Array(arrayView);\n\t return fromArrayBuffer(copy.buffer, copy.byteOffset, copy.byteLength)\n\t }\n\t return fromArrayLike(arrayView)\n\t}\n\n\tfunction fromArrayBuffer (array, byteOffset, length) {\n\t if (byteOffset < 0 || array.byteLength < byteOffset) {\n\t throw new RangeError('\"offset\" is outside of buffer bounds')\n\t }\n\n\t if (array.byteLength < byteOffset + (length || 0)) {\n\t throw new RangeError('\"length\" is outside of buffer bounds')\n\t }\n\n\t let buf;\n\t if (byteOffset === undefined && length === undefined) {\n\t buf = new GlobalUint8Array(array);\n\t } else if (length === undefined) {\n\t buf = new GlobalUint8Array(array, byteOffset);\n\t } else {\n\t buf = new GlobalUint8Array(array, byteOffset, length);\n\t }\n\n\t // Return an augmented `Uint8Array` instance\n\t Object.setPrototypeOf(buf, Buffer.prototype);\n\n\t return buf\n\t}\n\n\tfunction fromObject (obj) {\n\t if (Buffer.isBuffer(obj)) {\n\t const len = checked(obj.length) | 0;\n\t const buf = createBuffer(len);\n\n\t if (buf.length === 0) {\n\t return buf\n\t }\n\n\t obj.copy(buf, 0, 0, len);\n\t return buf\n\t }\n\n\t if (obj.length !== undefined) {\n\t if (typeof obj.length !== 'number' || numberIsNaN(obj.length)) {\n\t return createBuffer(0)\n\t }\n\t return fromArrayLike(obj)\n\t }\n\n\t if (obj.type === 'Buffer' && Array.isArray(obj.data)) {\n\t return fromArrayLike(obj.data)\n\t }\n\t}\n\n\tfunction checked (length) {\n\t // Note: cannot use `length < K_MAX_LENGTH` here because that fails when\n\t // length is NaN (which is otherwise coerced to zero.)\n\t if (length >= K_MAX_LENGTH) {\n\t throw new RangeError('Attempt to allocate Buffer larger than maximum ' +\n\t 'size: 0x' + K_MAX_LENGTH.toString(16) + ' bytes')\n\t }\n\t return length | 0\n\t}\n\n\tfunction SlowBuffer (length) {\n\t if (+length != length) { // eslint-disable-line eqeqeq\n\t length = 0;\n\t }\n\t return Buffer.alloc(+length)\n\t}\n\n\tBuffer.isBuffer = function isBuffer (b) {\n\t return b != null && b._isBuffer === true &&\n\t b !== Buffer.prototype // so Buffer.isBuffer(Buffer.prototype) will be false\n\t};\n\n\tBuffer.compare = function compare (a, b) {\n\t if (isInstance(a, GlobalUint8Array)) a = Buffer.from(a, a.offset, a.byteLength);\n\t if (isInstance(b, GlobalUint8Array)) b = Buffer.from(b, b.offset, b.byteLength);\n\t if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {\n\t throw new TypeError(\n\t 'The \"buf1\", \"buf2\" arguments must be one of type Buffer or Uint8Array'\n\t )\n\t }\n\n\t if (a === b) return 0\n\n\t let x = a.length;\n\t let y = b.length;\n\n\t for (let i = 0, len = Math.min(x, y); i < len; ++i) {\n\t if (a[i] !== b[i]) {\n\t x = a[i];\n\t y = b[i];\n\t break\n\t }\n\t }\n\n\t if (x < y) return -1\n\t if (y < x) return 1\n\t return 0\n\t};\n\n\tBuffer.isEncoding = function isEncoding (encoding) {\n\t switch (String(encoding).toLowerCase()) {\n\t case 'hex':\n\t case 'utf8':\n\t case 'utf-8':\n\t case 'ascii':\n\t case 'latin1':\n\t case 'binary':\n\t case 'base64':\n\t case 'ucs2':\n\t case 'ucs-2':\n\t case 'utf16le':\n\t case 'utf-16le':\n\t return true\n\t default:\n\t return false\n\t }\n\t};\n\n\tBuffer.concat = function concat (list, length) {\n\t if (!Array.isArray(list)) {\n\t throw new TypeError('\"list\" argument must be an Array of Buffers')\n\t }\n\n\t if (list.length === 0) {\n\t return Buffer.alloc(0)\n\t }\n\n\t let i;\n\t if (length === undefined) {\n\t length = 0;\n\t for (i = 0; i < list.length; ++i) {\n\t length += list[i].length;\n\t }\n\t }\n\n\t const buffer = Buffer.allocUnsafe(length);\n\t let pos = 0;\n\t for (i = 0; i < list.length; ++i) {\n\t let buf = list[i];\n\t if (isInstance(buf, GlobalUint8Array)) {\n\t if (pos + buf.length > buffer.length) {\n\t if (!Buffer.isBuffer(buf)) buf = Buffer.from(buf);\n\t buf.copy(buffer, pos);\n\t } else {\n\t GlobalUint8Array.prototype.set.call(\n\t buffer,\n\t buf,\n\t pos\n\t );\n\t }\n\t } else if (!Buffer.isBuffer(buf)) {\n\t throw new TypeError('\"list\" argument must be an Array of Buffers')\n\t } else {\n\t buf.copy(buffer, pos);\n\t }\n\t pos += buf.length;\n\t }\n\t return buffer\n\t};\n\n\tfunction byteLength (string, encoding) {\n\t if (Buffer.isBuffer(string)) {\n\t return string.length\n\t }\n\t if (GlobalArrayBuffer.isView(string) || isInstance(string, GlobalArrayBuffer)) {\n\t return string.byteLength\n\t }\n\t if (typeof string !== 'string') {\n\t throw new TypeError(\n\t 'The \"string\" argument must be one of type string, Buffer, or ArrayBuffer. ' +\n\t 'Received type ' + typeof string\n\t )\n\t }\n\n\t const len = string.length;\n\t const mustMatch = (arguments.length > 2 && arguments[2] === true);\n\t if (!mustMatch && len === 0) return 0\n\n\t // Use a for loop to avoid recursion\n\t let loweredCase = false;\n\t for (;;) {\n\t switch (encoding) {\n\t case 'ascii':\n\t case 'latin1':\n\t case 'binary':\n\t return len\n\t case 'utf8':\n\t case 'utf-8':\n\t return utf8ToBytes(string).length\n\t case 'ucs2':\n\t case 'ucs-2':\n\t case 'utf16le':\n\t case 'utf-16le':\n\t return len * 2\n\t case 'hex':\n\t return len >>> 1\n\t case 'base64':\n\t return base64ToBytes(string).length\n\t default:\n\t if (loweredCase) {\n\t return mustMatch ? -1 : utf8ToBytes(string).length // assume utf8\n\t }\n\t encoding = ('' + encoding).toLowerCase();\n\t loweredCase = true;\n\t }\n\t }\n\t}\n\tBuffer.byteLength = byteLength;\n\n\tfunction slowToString (encoding, start, end) {\n\t let loweredCase = false;\n\n\t // No need to verify that \"this.length <= MAX_UINT32\" since it's a read-only\n\t // property of a typed array.\n\n\t // This behaves neither like String nor Uint8Array in that we set start/end\n\t // to their upper/lower bounds if the value passed is out of range.\n\t // undefined is handled specially as per ECMA-262 6th Edition,\n\t // Section 13.3.3.7 Runtime Semantics: KeyedBindingInitialization.\n\t if (start === undefined || start < 0) {\n\t start = 0;\n\t }\n\t // Return early if start > this.length. Done here to prevent potential uint32\n\t // coercion fail below.\n\t if (start > this.length) {\n\t return ''\n\t }\n\n\t if (end === undefined || end > this.length) {\n\t end = this.length;\n\t }\n\n\t if (end <= 0) {\n\t return ''\n\t }\n\n\t // Force coercion to uint32. This will also coerce falsey/NaN values to 0.\n\t end >>>= 0;\n\t start >>>= 0;\n\n\t if (end <= start) {\n\t return ''\n\t }\n\n\t if (!encoding) encoding = 'utf8';\n\n\t while (true) {\n\t switch (encoding) {\n\t case 'hex':\n\t return hexSlice(this, start, end)\n\n\t case 'utf8':\n\t case 'utf-8':\n\t return utf8Slice(this, start, end)\n\n\t case 'ascii':\n\t return asciiSlice(this, start, end)\n\n\t case 'latin1':\n\t case 'binary':\n\t return latin1Slice(this, start, end)\n\n\t case 'base64':\n\t return base64Slice(this, start, end)\n\n\t case 'ucs2':\n\t case 'ucs-2':\n\t case 'utf16le':\n\t case 'utf-16le':\n\t return utf16leSlice(this, start, end)\n\n\t default:\n\t if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)\n\t encoding = (encoding + '').toLowerCase();\n\t loweredCase = true;\n\t }\n\t }\n\t}\n\n\t// This property is used by `Buffer.isBuffer` (and the `is-buffer` npm package)\n\t// to detect a Buffer instance. It's not possible to use `instanceof Buffer`\n\t// reliably in a browserify context because there could be multiple different\n\t// copies of the 'buffer' package in use. This method works even for Buffer\n\t// instances that were created from another copy of the `buffer` package.\n\t// See: https://github.com/feross/buffer/issues/154\n\tBuffer.prototype._isBuffer = true;\n\n\tfunction swap (b, n, m) {\n\t const i = b[n];\n\t b[n] = b[m];\n\t b[m] = i;\n\t}\n\n\tBuffer.prototype.swap16 = function swap16 () {\n\t const len = this.length;\n\t if (len % 2 !== 0) {\n\t throw new RangeError('Buffer size must be a multiple of 16-bits')\n\t }\n\t for (let i = 0; i < len; i += 2) {\n\t swap(this, i, i + 1);\n\t }\n\t return this\n\t};\n\n\tBuffer.prototype.swap32 = function swap32 () {\n\t const len = this.length;\n\t if (len % 4 !== 0) {\n\t throw new RangeError('Buffer size must be a multiple of 32-bits')\n\t }\n\t for (let i = 0; i < len; i += 4) {\n\t swap(this, i, i + 3);\n\t swap(this, i + 1, i + 2);\n\t }\n\t return this\n\t};\n\n\tBuffer.prototype.swap64 = function swap64 () {\n\t const len = this.length;\n\t if (len % 8 !== 0) {\n\t throw new RangeError('Buffer size must be a multiple of 64-bits')\n\t }\n\t for (let i = 0; i < len; i += 8) {\n\t swap(this, i, i + 7);\n\t swap(this, i + 1, i + 6);\n\t swap(this, i + 2, i + 5);\n\t swap(this, i + 3, i + 4);\n\t }\n\t return this\n\t};\n\n\tBuffer.prototype.toString = function toString () {\n\t const length = this.length;\n\t if (length === 0) return ''\n\t if (arguments.length === 0) return utf8Slice(this, 0, length)\n\t return slowToString.apply(this, arguments)\n\t};\n\n\tBuffer.prototype.toLocaleString = Buffer.prototype.toString;\n\n\tBuffer.prototype.equals = function equals (b) {\n\t if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer')\n\t if (this === b) return true\n\t return Buffer.compare(this, b) === 0\n\t};\n\n\tBuffer.prototype.inspect = function inspect () {\n\t let str = '';\n\t const max = exports.INSPECT_MAX_BYTES;\n\t str = this.toString('hex', 0, max).replace(/(.{2})/g, '$1 ').trim();\n\t if (this.length > max) str += ' ... ';\n\t return '<Buffer ' + str + '>'\n\t};\n\tif (customInspectSymbol) {\n\t Buffer.prototype[customInspectSymbol] = Buffer.prototype.inspect;\n\t}\n\n\tBuffer.prototype.compare = function compare (target, start, end, thisStart, thisEnd) {\n\t if (isInstance(target, GlobalUint8Array)) {\n\t target = Buffer.from(target, target.offset, target.byteLength);\n\t }\n\t if (!Buffer.isBuffer(target)) {\n\t throw new TypeError(\n\t 'The \"target\" argument must be one of type Buffer or Uint8Array. ' +\n\t 'Received type ' + (typeof target)\n\t )\n\t }\n\n\t if (start === undefined) {\n\t start = 0;\n\t }\n\t if (end === undefined) {\n\t end = target ? target.length : 0;\n\t }\n\t if (thisStart === undefined) {\n\t thisStart = 0;\n\t }\n\t if (thisEnd === undefined) {\n\t thisEnd = this.length;\n\t }\n\n\t if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) {\n\t throw new RangeError('out of range index')\n\t }\n\n\t if (thisStart >= thisEnd && start >= end) {\n\t return 0\n\t }\n\t if (thisStart >= thisEnd) {\n\t return -1\n\t }\n\t if (start >= end) {\n\t return 1\n\t }\n\n\t start >>>= 0;\n\t end >>>= 0;\n\t thisStart >>>= 0;\n\t thisEnd >>>= 0;\n\n\t if (this === target) return 0\n\n\t let x = thisEnd - thisStart;\n\t let y = end - start;\n\t const len = Math.min(x, y);\n\n\t const thisCopy = this.slice(thisStart, thisEnd);\n\t const targetCopy = target.slice(start, end);\n\n\t for (let i = 0; i < len; ++i) {\n\t if (thisCopy[i] !== targetCopy[i]) {\n\t x = thisCopy[i];\n\t y = targetCopy[i];\n\t break\n\t }\n\t }\n\n\t if (x < y) return -1\n\t if (y < x) return 1\n\t return 0\n\t};\n\n\t// Finds either the first index of `val` in `buffer` at offset >= `byteOffset`,\n\t// OR the last index of `val` in `buffer` at offset <= `byteOffset`.\n\t//\n\t// Arguments:\n\t// - buffer - a Buffer to search\n\t// - val - a string, Buffer, or number\n\t// - byteOffset - an index into `buffer`; will be clamped to an int32\n\t// - encoding - an optional encoding, relevant is val is a string\n\t// - dir - true for indexOf, false for lastIndexOf\n\tfunction bidirectionalIndexOf (buffer, val, byteOffset, encoding, dir) {\n\t // Empty buffer means no match\n\t if (buffer.length === 0) return -1\n\n\t // Normalize byteOffset\n\t if (typeof byteOffset === 'string') {\n\t encoding = byteOffset;\n\t byteOffset = 0;\n\t } else if (byteOffset > 0x7fffffff) {\n\t byteOffset = 0x7fffffff;\n\t } else if (byteOffset < -0x80000000) {\n\t byteOffset = -0x80000000;\n\t }\n\t byteOffset = +byteOffset; // Coerce to Number.\n\t if (numberIsNaN(byteOffset)) {\n\t // byteOffset: it it's undefined, null, NaN, \"foo\", etc, search whole buffer\n\t byteOffset = dir ? 0 : (buffer.length - 1);\n\t }\n\n\t // Normalize byteOffset: negative offsets start from the end of the buffer\n\t if (byteOffset < 0) byteOffset = buffer.length + byteOffset;\n\t if (byteOffset >= buffer.length) {\n\t if (dir) return -1\n\t else byteOffset = buffer.length - 1;\n\t } else if (byteOffset < 0) {\n\t if (dir) byteOffset = 0;\n\t else return -1\n\t }\n\n\t // Normalize val\n\t if (typeof val === 'string') {\n\t val = Buffer.from(val, encoding);\n\t }\n\n\t // Finally, search either indexOf (if dir is true) or lastIndexOf\n\t if (Buffer.isBuffer(val)) {\n\t // Special case: looking for empty string/buffer always fails\n\t if (val.length === 0) {\n\t return -1\n\t }\n\t return arrayIndexOf(buffer, val, byteOffset, encoding, dir)\n\t } else if (typeof val === 'number') {\n\t val = val & 0xFF; // Search for a byte value [0-255]\n\t if (typeof GlobalUint8Array.prototype.indexOf === 'function') {\n\t if (dir) {\n\t return GlobalUint8Array.prototype.indexOf.call(buffer, val, byteOffset)\n\t } else {\n\t return GlobalUint8Array.prototype.lastIndexOf.call(buffer, val, byteOffset)\n\t }\n\t }\n\t return arrayIndexOf(buffer, [val], byteOffset, encoding, dir)\n\t }\n\n\t throw new TypeError('val must be string, number or Buffer')\n\t}\n\n\tfunction arrayIndexOf (arr, val, byteOffset, encoding, dir) {\n\t let indexSize = 1;\n\t let arrLength = arr.length;\n\t let valLength = val.length;\n\n\t if (encoding !== undefined) {\n\t encoding = String(encoding).toLowerCase();\n\t if (encoding === 'ucs2' || encoding === 'ucs-2' ||\n\t encoding === 'utf16le' || encoding === 'utf-16le') {\n\t if (arr.length < 2 || val.length < 2) {\n\t return -1\n\t }\n\t indexSize = 2;\n\t arrLength /= 2;\n\t valLength /= 2;\n\t byteOffset /= 2;\n\t }\n\t }\n\n\t function read (buf, i) {\n\t if (indexSize === 1) {\n\t return buf[i]\n\t } else {\n\t return buf.readUInt16BE(i * indexSize)\n\t }\n\t }\n\n\t let i;\n\t if (dir) {\n\t let foundIndex = -1;\n\t for (i = byteOffset; i < arrLength; i++) {\n\t if (read(arr, i) === read(val, foundIndex === -1 ? 0 : i - foundIndex)) {\n\t if (foundIndex === -1) foundIndex = i;\n\t if (i - foundIndex + 1 === valLength) return foundIndex * indexSize\n\t } else {\n\t if (foundIndex !== -1) i -= i - foundIndex;\n\t foundIndex = -1;\n\t }\n\t }\n\t } else {\n\t if (byteOffset + valLength > arrLength) byteOffset = arrLength - valLength;\n\t for (i = byteOffset; i >= 0; i--) {\n\t let found = true;\n\t for (let j = 0; j < valLength; j++) {\n\t if (read(arr, i + j) !== read(val, j)) {\n\t found = false;\n\t break\n\t }\n\t }\n\t if (found) return i\n\t }\n\t }\n\n\t return -1\n\t}\n\n\tBuffer.prototype.includes = function includes (val, byteOffset, encoding) {\n\t return this.indexOf(val, byteOffset, encoding) !== -1\n\t};\n\n\tBuffer.prototype.indexOf = function indexOf (val, byteOffset, encoding) {\n\t return bidirectionalIndexOf(this, val, byteOffset, encoding, true)\n\t};\n\n\tBuffer.prototype.lastIndexOf = function lastIndexOf (val, byteOffset, encoding) {\n\t return bidirectionalIndexOf(this, val, byteOffset, encoding, false)\n\t};\n\n\tfunction hexWrite (buf, string, offset, length) {\n\t offset = Number(offset) || 0;\n\t const remaining = buf.length - offset;\n\t if (!length) {\n\t length = remaining;\n\t } else {\n\t length = Number(length);\n\t if (length > remaining) {\n\t length = remaining;\n\t }\n\t }\n\n\t const strLen = string.length;\n\n\t if (length > strLen / 2) {\n\t length = strLen / 2;\n\t }\n\t let i;\n\t for (i = 0; i < length; ++i) {\n\t const parsed = parseInt(string.substr(i * 2, 2), 16);\n\t if (numberIsNaN(parsed)) return i\n\t buf[offset + i] = parsed;\n\t }\n\t return i\n\t}\n\n\tfunction utf8Write (buf, string, offset, length) {\n\t return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length)\n\t}\n\n\tfunction asciiWrite (buf, string, offset, length) {\n\t return blitBuffer(asciiToBytes(string), buf, offset, length)\n\t}\n\n\tfunction base64Write (buf, string, offset, length) {\n\t return blitBuffer(base64ToBytes(string), buf, offset, length)\n\t}\n\n\tfunction ucs2Write (buf, string, offset, length) {\n\t return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length)\n\t}\n\n\tBuffer.prototype.write = function write (string, offset, length, encoding) {\n\t // Buffer#write(string)\n\t if (offset === undefined) {\n\t encoding = 'utf8';\n\t length = this.length;\n\t offset = 0;\n\t // Buffer#write(string, encoding)\n\t } else if (length === undefined && typeof offset === 'string') {\n\t encoding = offset;\n\t length = this.length;\n\t offset = 0;\n\t // Buffer#write(string, offset[, length][, encoding])\n\t } else if (isFinite(offset)) {\n\t offset = offset >>> 0;\n\t if (isFinite(length)) {\n\t length = length >>> 0;\n\t if (encoding === undefined) encoding = 'utf8';\n\t } else {\n\t encoding = length;\n\t length = undefined;\n\t }\n\t } else {\n\t throw new Error(\n\t 'Buffer.write(string, encoding, offset[, length]) is no longer supported'\n\t )\n\t }\n\n\t const remaining = this.length - offset;\n\t if (length === undefined || length > remaining) length = remaining;\n\n\t if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) {\n\t throw new RangeError('Attempt to write outside buffer bounds')\n\t }\n\n\t if (!encoding) encoding = 'utf8';\n\n\t let loweredCase = false;\n\t for (;;) {\n\t switch (encoding) {\n\t case 'hex':\n\t return hexWrite(this, string, offset, length)\n\n\t case 'utf8':\n\t case 'utf-8':\n\t return utf8Write(this, string, offset, length)\n\n\t case 'ascii':\n\t case 'latin1':\n\t case 'binary':\n\t return asciiWrite(this, string, offset, length)\n\n\t case 'base64':\n\t // Warning: maxLength not taken into account in base64Write\n\t return base64Write(this, string, offset, length)\n\n\t case 'ucs2':\n\t case 'ucs-2':\n\t case 'utf16le':\n\t case 'utf-16le':\n\t return ucs2Write(this, string, offset, length)\n\n\t default:\n\t if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)\n\t encoding = ('' + encoding).toLowerCase();\n\t loweredCase = true;\n\t }\n\t }\n\t};\n\n\tBuffer.prototype.toJSON = function toJSON () {\n\t return {\n\t type: 'Buffer',\n\t data: Array.prototype.slice.call(this._arr || this, 0)\n\t }\n\t};\n\n\tfunction base64Slice (buf, start, end) {\n\t if (start === 0 && end === buf.length) {\n\t return base64.fromByteArray(buf)\n\t } else {\n\t return base64.fromByteArray(buf.slice(start, end))\n\t }\n\t}\n\n\tfunction utf8Slice (buf, start, end) {\n\t end = Math.min(buf.length, end);\n\t const res = [];\n\n\t let i = start;\n\t while (i < end) {\n\t const firstByte = buf[i];\n\t let codePoint = null;\n\t let bytesPerSequence = (firstByte > 0xEF)\n\t ? 4\n\t : (firstByte > 0xDF)\n\t ? 3\n\t : (firstByte > 0xBF)\n\t ? 2\n\t : 1;\n\n\t if (i + bytesPerSequence <= end) {\n\t let secondByte, thirdByte, fourthByte, tempCodePoint;\n\n\t switch (bytesPerSequence) {\n\t case 1:\n\t if (firstByte < 0x80) {\n\t codePoint = firstByte;\n\t }\n\t break\n\t case 2:\n\t secondByte = buf[i + 1];\n\t if ((secondByte & 0xC0) === 0x80) {\n\t tempCodePoint = (firstByte & 0x1F) << 0x6 | (secondByte & 0x3F);\n\t if (tempCodePoint > 0x7F) {\n\t codePoint = tempCodePoint;\n\t }\n\t }\n\t break\n\t case 3:\n\t secondByte = buf[i + 1];\n\t thirdByte = buf[i + 2];\n\t if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) {\n\t tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | (thirdByte & 0x3F);\n\t if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) {\n\t codePoint = tempCodePoint;\n\t }\n\t }\n\t break\n\t case 4:\n\t secondByte = buf[i + 1];\n\t thirdByte = buf[i + 2];\n\t fourthByte = buf[i + 3];\n\t if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) {\n\t tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | (fourthByte & 0x3F);\n\t if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) {\n\t codePoint = tempCodePoint;\n\t }\n\t }\n\t }\n\t }\n\n\t if (codePoint === null) {\n\t // we did not generate a valid codePoint so insert a\n\t // replacement char (U+FFFD) and advance only 1 byte\n\t codePoint = 0xFFFD;\n\t bytesPerSequence = 1;\n\t } else if (codePoint > 0xFFFF) {\n\t // encode to utf16 (surrogate pair dance)\n\t codePoint -= 0x10000;\n\t res.push(codePoint >>> 10 & 0x3FF | 0xD800);\n\t codePoint = 0xDC00 | codePoint & 0x3FF;\n\t }\n\n\t res.push(codePoint);\n\t i += bytesPerSequence;\n\t }\n\n\t return decodeCodePointsArray(res)\n\t}\n\n\t// Based on http://stackoverflow.com/a/22747272/680742, the browser with\n\t// the lowest limit is Chrome, with 0x10000 args.\n\t// We go 1 magnitude less, for safety\n\tconst MAX_ARGUMENTS_LENGTH = 0x1000;\n\n\tfunction decodeCodePointsArray (codePoints) {\n\t const len = codePoints.length;\n\t if (len <= MAX_ARGUMENTS_LENGTH) {\n\t return String.fromCharCode.apply(String, codePoints) // avoid extra slice()\n\t }\n\n\t // Decode in chunks to avoid \"call stack size exceeded\".\n\t let res = '';\n\t let i = 0;\n\t while (i < len) {\n\t res += String.fromCharCode.apply(\n\t String,\n\t codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH)\n\t );\n\t }\n\t return res\n\t}\n\n\tfunction asciiSlice (buf, start, end) {\n\t let ret = '';\n\t end = Math.min(buf.length, end);\n\n\t for (let i = start; i < end; ++i) {\n\t ret += String.fromCharCode(buf[i] & 0x7F);\n\t }\n\t return ret\n\t}\n\n\tfunction latin1Slice (buf, start, end) {\n\t let ret = '';\n\t end = Math.min(buf.length, end);\n\n\t for (let i = start; i < end; ++i) {\n\t ret += String.fromCharCode(buf[i]);\n\t }\n\t return ret\n\t}\n\n\tfunction hexSlice (buf, start, end) {\n\t const len = buf.length;\n\n\t if (!start || start < 0) start = 0;\n\t if (!end || end < 0 || end > len) end = len;\n\n\t let out = '';\n\t for (let i = start; i < end; ++i) {\n\t out += hexSliceLookupTable[buf[i]];\n\t }\n\t return out\n\t}\n\n\tfunction utf16leSlice (buf, start, end) {\n\t const bytes = buf.slice(start, end);\n\t let res = '';\n\t // If bytes.length is odd, the last 8 bits must be ignored (same as node.js)\n\t for (let i = 0; i < bytes.length - 1; i += 2) {\n\t res += String.fromCharCode(bytes[i] + (bytes[i + 1] * 256));\n\t }\n\t return res\n\t}\n\n\tBuffer.prototype.slice = function slice (start, end) {\n\t const len = this.length;\n\t start = ~~start;\n\t end = end === undefined ? len : ~~end;\n\n\t if (start < 0) {\n\t start += len;\n\t if (start < 0) start = 0;\n\t } else if (start > len) {\n\t start = len;\n\t }\n\n\t if (end < 0) {\n\t end += len;\n\t if (end < 0) end = 0;\n\t } else if (end > len) {\n\t end = len;\n\t }\n\n\t if (end < start) end = start;\n\n\t const newBuf = this.subarray(start, end);\n\t // Return an augmented `Uint8Array` instance\n\t Object.setPrototypeOf(newBuf, Buffer.prototype);\n\n\t return newBuf\n\t};\n\n\t/*\n\t * Need to make sure that buffer isn't trying to write out of bounds.\n\t */\n\tfunction checkOffset (offset, ext, length) {\n\t if ((offset % 1) !== 0 || offset < 0) throw new RangeError('offset is not uint')\n\t if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length')\n\t}\n\n\tBuffer.prototype.readUintLE =\n\tBuffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) {\n\t offset = offset >>> 0;\n\t byteLength = byteLength >>> 0;\n\t if (!noAssert) checkOffset(offset, byteLength, this.length);\n\n\t let val = this[offset];\n\t let mul = 1;\n\t let i = 0;\n\t while (++i < byteLength && (mul *= 0x100)) {\n\t val += this[offset + i] * mul;\n\t }\n\n\t return val\n\t};\n\n\tBuffer.prototype.readUintBE =\n\tBuffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) {\n\t offset = offset >>> 0;\n\t byteLength = byteLength >>> 0;\n\t if (!noAssert) {\n\t checkOffset(offset, byteLength, this.length);\n\t }\n\n\t let val = this[offset + --byteLength];\n\t let mul = 1;\n\t while (byteLength > 0 && (mul *= 0x100)) {\n\t val += this[offset + --byteLength] * mul;\n\t }\n\n\t return val\n\t};\n\n\tBuffer.prototype.readUint8 =\n\tBuffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) {\n\t offset = offset >>> 0;\n\t if (!noAssert) checkOffset(offset, 1, this.length);\n\t return this[offset]\n\t};\n\n\tBuffer.prototype.readUint16LE =\n\tBuffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) {\n\t offset = offset >>> 0;\n\t if (!noAssert) checkOffset(offset, 2, this.length);\n\t return this[offset] | (this[offset + 1] << 8)\n\t};\n\n\tBuffer.prototype.readUint16BE =\n\tBuffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) {\n\t offset = offset >>> 0;\n\t if (!noAssert) checkOffset(offset, 2, this.length);\n\t return (this[offset] << 8) | this[offset + 1]\n\t};\n\n\tBuffer.prototype.readUint32LE =\n\tBuffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) {\n\t offset = offset >>> 0;\n\t if (!noAssert) checkOffset(offset, 4, this.length);\n\n\t return ((this[offset]) |\n\t (this[offset + 1] << 8) |\n\t (this[offset + 2] << 16)) +\n\t (this[offset + 3] * 0x1000000)\n\t};\n\n\tBuffer.prototype.readUint32BE =\n\tBuffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) {\n\t offset = offset >>> 0;\n\t if (!noAssert) checkOffset(offset, 4, this.length);\n\n\t return (this[offset] * 0x1000000) +\n\t ((this[offset + 1] << 16) |\n\t (this[offset + 2] << 8) |\n\t this[offset + 3])\n\t};\n\n\tBuffer.prototype.readBigUInt64LE = defineBigIntMethod(function readBigUInt64LE (offset) {\n\t offset = offset >>> 0;\n\t validateNumber(offset, 'offset');\n\t const first = this[offset];\n\t const last = this[offset + 7];\n\t if (first === undefined || last === undefined) {\n\t boundsError(offset, this.length - 8);\n\t }\n\n\t const lo = first +\n\t this[++offset] * 2 ** 8 +\n\t this[++offset] * 2 ** 16 +\n\t this[++offset] * 2 ** 24;\n\n\t const hi = this[++offset] +\n\t this[++offset] * 2 ** 8 +\n\t this[++offset] * 2 ** 16 +\n\t last * 2 ** 24;\n\n\t return BigInt(lo) + (BigInt(hi) << BigInt(32))\n\t});\n\n\tBuffer.prototype.readBigUInt64BE = defineBigIntMethod(function readBigUInt64BE (offset) {\n\t offset = offset >>> 0;\n\t validateNumber(offset, 'offset');\n\t const first = this[offset];\n\t const last = this[offset + 7];\n\t if (first === undefined || last === undefined) {\n\t boundsError(offset, this.length - 8);\n\t }\n\n\t const hi = first * 2 ** 24 +\n\t this[++offset] * 2 ** 16 +\n\t this[++offset] * 2 ** 8 +\n\t this[++offset];\n\n\t const lo = this[++offset] * 2 ** 24 +\n\t this[++offset] * 2 ** 16 +\n\t this[++offset] * 2 ** 8 +\n\t last;\n\n\t return (BigInt(hi) << BigInt(32)) + BigInt(lo)\n\t});\n\n\tBuffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) {\n\t offset = offset >>> 0;\n\t byteLength = byteLength >>> 0;\n\t if (!noAssert) checkOffset(offset, byteLength, this.length);\n\n\t let val = this[offset];\n\t let mul = 1;\n\t let i = 0;\n\t while (++i < byteLength && (mul *= 0x100)) {\n\t val += this[offset + i] * mul;\n\t }\n\t mul *= 0x80;\n\n\t if (val >= mul) val -= Math.pow(2, 8 * byteLength);\n\n\t return val\n\t};\n\n\tBuffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) {\n\t offset = offset >>> 0;\n\t byteLength = byteLength >>> 0;\n\t if (!noAssert) checkOffset(offset, byteLength, this.length);\n\n\t let i = byteLength;\n\t let mul = 1;\n\t let val = this[offset + --i];\n\t while (i > 0 && (mul *= 0x100)) {\n\t val += this[offset + --i] * mul;\n\t }\n\t mul *= 0x80;\n\n\t if (val >= mul) val -= Math.pow(2, 8 * byteLength);\n\n\t return val\n\t};\n\n\tBuffer.prototype.readInt8 = function readInt8 (offset, noAssert) {\n\t offset = offset >>> 0;\n\t if (!noAssert) checkOffset(offset, 1, this.length);\n\t if (!(this[offset] & 0x80)) return (this[offset])\n\t return ((0xff - this[offset] + 1) * -1)\n\t};\n\n\tBuffer.prototype.readInt16LE = function readInt16LE (offset, noAssert) {\n\t offset = offset >>> 0;\n\t if (!noAssert) checkOffset(offset, 2, this.length);\n\t const val = this[offset] | (this[offset + 1] << 8);\n\t return (val & 0x8000) ? val | 0xFFFF0000 : val\n\t};\n\n\tBuffer.prototype.readInt16BE = function readInt16BE (offset, noAssert) {\n\t offset = offset >>> 0;\n\t if (!noAssert) checkOffset(offset, 2, this.length);\n\t const val = this[offset + 1] | (this[offset] << 8);\n\t return (val & 0x8000) ? val | 0xFFFF0000 : val\n\t};\n\n\tBuffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) {\n\t offset = offset >>> 0;\n\t if (!noAssert) checkOffset(offset, 4, this.length);\n\n\t return (this[offset]) |\n\t (this[offset + 1] << 8) |\n\t (this[offset + 2] << 16) |\n\t (this[offset + 3] << 24)\n\t};\n\n\tBuffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) {\n\t offset = offset >>> 0;\n\t if (!noAssert) checkOffset(offset, 4, this.length);\n\n\t return (this[offset] << 24) |\n\t (this[offset + 1] << 16) |\n\t (this[offset + 2] << 8) |\n\t (this[offset + 3])\n\t};\n\n\tBuffer.prototype.readBigInt64LE = defineBigIntMethod(function readBigInt64LE (offset) {\n\t offset = offset >>> 0;\n\t validateNumber(offset, 'offset');\n\t const first = this[offset];\n\t const last = this[offset + 7];\n\t if (first === undefined || last === undefined) {\n\t boundsError(offset, this.length - 8);\n\t }\n\n\t const val = this[offset + 4] +\n\t this[offset + 5] * 2 ** 8 +\n\t this[offset + 6] * 2 ** 16 +\n\t (last << 24); // Overflow\n\n\t return (BigInt(val) << BigInt(32)) +\n\t BigInt(first +\n\t this[++offset] * 2 ** 8 +\n\t this[++offset] * 2 ** 16 +\n\t this[++offset] * 2 ** 24)\n\t});\n\n\tBuffer.prototype.readBigInt64BE = defineBigIntMethod(function readBigInt64BE (offset) {\n\t offset = offset >>> 0;\n\t validateNumber(offset, 'offset');\n\t const first = this[offset];\n\t const last = this[offset + 7];\n\t if (first === undefined || last === undefined) {\n\t boundsError(offset, this.length - 8);\n\t }\n\n\t const val = (first << 24) + // Overflow\n\t this[++offset] * 2 ** 16 +\n\t this[++offset] * 2 ** 8 +\n\t this[++offset];\n\n\t return (BigInt(val) << BigInt(32)) +\n\t BigInt(this[++offset] * 2 ** 24 +\n\t this[++offset] * 2 ** 16 +\n\t this[++offset] * 2 ** 8 +\n\t last)\n\t});\n\n\tBuffer.prototype.readFloatLE = function readFloatLE (offset, noAssert) {\n\t offset = offset >>> 0;\n\t if (!noAssert) checkOffset(offset, 4, this.length);\n\t return ieee754$1.read(this, offset, true, 23, 4)\n\t};\n\n\tBuffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) {\n\t offset = offset >>> 0;\n\t if (!noAssert) checkOffset(offset, 4, this.length);\n\t return ieee754$1.read(this, offset, false, 23, 4)\n\t};\n\n\tBuffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) {\n\t offset = offset >>> 0;\n\t if (!noAssert) checkOffset(offset, 8, this.length);\n\t return ieee754$1.read(this, offset, true, 52, 8)\n\t};\n\n\tBuffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) {\n\t offset = offset >>> 0;\n\t if (!noAssert) checkOffset(offset, 8, this.length);\n\t return ieee754$1.read(this, offset, false, 52, 8)\n\t};\n\n\tfunction checkInt (buf, value, offset, ext, max, min) {\n\t if (!Buffer.isBuffer(buf)) throw new TypeError('\"buffer\" argument must be a Buffer instance')\n\t if (value > max || value < min) throw new RangeError('\"value\" argument is out of bounds')\n\t if (offset + ext > buf.length) throw new RangeError('Index out of range')\n\t}\n\n\tBuffer.prototype.writeUintLE =\n\tBuffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) {\n\t value = +value;\n\t offset = offset >>> 0;\n\t byteLength = byteLength >>> 0;\n\t if (!noAssert) {\n\t const maxBytes = Math.pow(2, 8 * byteLength) - 1;\n\t checkInt(this, value, offset, byteLength, maxBytes, 0);\n\t }\n\n\t let mul = 1;\n\t let i = 0;\n\t this[offset] = value & 0xFF;\n\t while (++i < byteLength && (mul *= 0x100)) {\n\t this[offset + i] = (value / mul) & 0xFF;\n\t }\n\n\t return offset + byteLength\n\t};\n\n\tBuffer.prototype.writeUintBE =\n\tBuffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength, noAssert) {\n\t value = +value;\n\t offset = offse