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frpc-panel/assets/static/js/toml.js

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JavaScript
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(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.TOML = f()}})(function(){var define,module,exports;return (function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i<t.length;i++)o(t[i]);return o}return r})()({1:[function(require,module,exports){
'use strict'
exports.parse = require('./lib/parse')
exports.stringify = require('./lib/stringify')
},{"./lib/parse":4,"./lib/stringify":9}],2:[function(require,module,exports){
class TomlError extends Error {
constructor (msg) {
super(msg)
this.name = 'TomlError'
/* istanbul ignore next */
if (Error.captureStackTrace) Error.captureStackTrace(this, TomlError)
this.fromTOML = true
this.wrapped = null
}
}
TomlError.wrap = err => {
const terr = new TomlError(err.message)
terr.code = err.code
terr.wrapped = err
return terr
}
module.exports = exports.TomlError = TomlError;
},{}],3:[function(require,module,exports){
(function (setImmediate){(function (){
'use strict'
module.exports = parseAsync
const TOMLParser = require('../toml')
const prettyError = require('../parse/pretty-error')
function parseAsync(str, opts) {
if (!opts) opts = {}
const index = 0
const blocksize = opts.blocksize || 40960
const parser = new TOMLParser()
return new Promise((resolve, reject) => {
setImmediate(parseAsyncNext, index, blocksize, resolve, reject)
})
function parseAsyncNext(index, blocksize, resolve, reject) {
if (index >= str.length) {
try {
return resolve(parser.finish())
} catch (err) {
return reject(prettyError(err, str))
}
}
try {
parser.parse(str.slice(index, index + blocksize))
setImmediate(parseAsyncNext, index + blocksize, blocksize, resolve, reject)
} catch (err) {
reject(prettyError(err, str))
}
}
}
}).call(this)}).call(this,require("timers").setImmediate)
},{"../parse/pretty-error":5,"../toml":10,"timers":40}],4:[function(require,module,exports){
'use strict'
module.exports = require('./string.js')
module.exports.async = require('./async.js')
module.exports.stream = require('./stream.js')
module.exports.prettyError = require('./pretty-error.js')
},{"./async.js":3,"./pretty-error.js":5,"./stream.js":6,"./string.js":7}],5:[function(require,module,exports){
'use strict'
module.exports = prettyError
function prettyError (err, buf) {
/* istanbul ignore if */
if (err.pos == null || err.line == null) return err
let msg = err.message
msg += ` at row ${err.line + 1}, col ${err.col + 1}, pos ${err.pos}:\n`
/* istanbul ignore else */
if (buf && buf.split) {
const lines = buf.split(/\n/)
const lineNumWidth = String(Math.min(lines.length, err.line + 3)).length
let linePadding = ' '
while (linePadding.length < lineNumWidth) linePadding += ' '
for (let ii = Math.max(0, err.line - 1); ii < Math.min(lines.length, err.line + 2); ++ii) {
let lineNum = String(ii + 1)
if (lineNum.length < lineNumWidth) lineNum = ' ' + lineNum
if (err.line === ii) {
msg += lineNum + '> ' + lines[ii] + '\n'
msg += linePadding + ' '
for (let hh = 0; hh < err.col; ++hh) {
msg += ' '
}
msg += '^\n'
} else {
msg += lineNum + ': ' + lines[ii] + '\n'
}
}
}
err.message = msg + '\n'
return err
}
},{}],6:[function(require,module,exports){
'use strict'
module.exports = parseStream
const stream = require('stream')
const TOMLParser = require('../toml')
function parseStream (stm) {
if (stm) {
return parseReadable(stm)
} else {
return parseTransform(stm)
}
}
function parseReadable (stm) {
const parser = new TOMLParser()
stm.setEncoding('utf8')
return new Promise((resolve, reject) => {
let readable
let ended = false
let errored = false
function finish () {
ended = true
if (readable) return
try {
resolve(parser.finish())
} catch (err) {
reject(err)
}
}
function error (err) {
errored = true
reject(err)
}
stm.once('end', finish)
stm.once('error', error)
readNext()
function readNext () {
readable = true
let data
while ((data = stm.read()) !== null) {
try {
parser.parse(data)
} catch (err) {
return error(err)
}
}
readable = false
/* istanbul ignore if */
if (ended) return finish()
/* istanbul ignore if */
if (errored) return
stm.once('readable', readNext)
}
})
}
function parseTransform () {
const parser = new TOMLParser()
return new stream.Transform({
objectMode: true,
transform (chunk, encoding, cb) {
try {
parser.parse(chunk.toString(encoding))
} catch (err) {
this.emit('error', err)
}
cb()
},
flush (cb) {
try {
this.push(parser.finish())
} catch (err) {
this.emit('error', err)
}
cb()
}
})
}
},{"../toml":10,"stream":24}],7:[function(require,module,exports){
(function (global){(function (){
'use strict'
module.exports = parseString
const TOMLParser = require('../toml')
const prettyError = require('../parse/pretty-error')
function parseString (str) {
if (global.Buffer && global.Buffer.isBuffer(str)) {
str = str.toString('utf8')
}
const parser = new TOMLParser()
try {
parser.parse(str)
return parser.finish()
} catch (err) {
throw prettyError(err, str)
}
}
}).call(this)}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"../parse/pretty-error":5,"../toml":10}],8:[function(require,module,exports){
'use strict'
const ParserEND = 0x110000
class ParserError extends Error {
/* istanbul ignore next */
constructor (msg, filename, linenumber) {
super('[ParserError] ' + msg, filename, linenumber)
this.name = 'ParserError'
this.code = 'ParserError'
if (Error.captureStackTrace) Error.captureStackTrace(this, ParserError)
}
}
class State {
constructor (parser) {
this.parser = parser
this.buf = ''
this.returned = null
this.result = null
this.resultTable = null
this.resultArr = null
}
}
class Parser {
constructor () {
this.pos = 0
this.col = 0
this.line = 0
this.obj = {}
this.ctx = this.obj
this.stack = []
this._buf = ''
this.char = null
this.ii = 0
this.state = new State(this.parseStart)
}
parse (str) {
/* istanbul ignore next */
if (str.length === 0 || str.length == null) return
this._buf = String(str)
this.ii = -1
this.char = -1
let getNext
while (getNext === false || this.nextChar()) {
getNext = this.runOne()
}
this._buf = null
}
nextChar () {
if (this.char === 0x0A) {
++this.line
this.col = -1
}
++this.ii
this.char = this._buf.codePointAt(this.ii)
++this.pos
++this.col
return this.haveBuffer()
}
haveBuffer () {
return this.ii < this._buf.length
}
runOne () {
return this.state.parser.call(this, this.state.returned)
}
finish () {
this.char = ParserEND
let last
do {
last = this.state.parser
this.runOne()
} while (this.state.parser !== last)
this.ctx = null
this.state = null
this._buf = null
return this.obj
}
next (fn) {
/* istanbul ignore next */
if (typeof fn !== 'function') throw new ParserError('Tried to set state to non-existent state: ' + JSON.stringify(fn))
this.state.parser = fn
}
goto (fn) {
this.next(fn)
return this.runOne()
}
call (fn, returnWith) {
if (returnWith) this.next(returnWith)
this.stack.push(this.state)
this.state = new State(fn)
}
callNow (fn, returnWith) {
this.call(fn, returnWith)
return this.runOne()
}
return (value) {
/* istanbul ignore next */
if (this.stack.length === 0) throw this.error(new ParserError('Stack underflow'))
if (value === undefined) value = this.state.buf
this.state = this.stack.pop()
this.state.returned = value
}
returnNow (value) {
this.return(value)
return this.runOne()
}
consume () {
/* istanbul ignore next */
if (this.char === ParserEND) throw this.error(new ParserError('Unexpected end-of-buffer'))
this.state.buf += this._buf[this.ii]
}
error (err) {
err.line = this.line
err.col = this.col
err.pos = this.pos
return err
}
/* istanbul ignore next */
parseStart () {
throw new ParserError('Must declare a parseStart method')
}
}
Parser.END = ParserEND
Parser.Error = ParserError
module.exports = Parser
},{}],9:[function(require,module,exports){
'use strict'
module.exports = stringify
module.exports.value = stringifyInline
function stringify(obj, separator) {
if (obj === null) throw typeError('null')
if (obj === void (0)) throw typeError('undefined')
if (typeof obj !== 'object') throw typeError(typeof obj)
if (typeof obj.toJSON === 'function') obj = obj.toJSON()
if (obj == null) return null
const type = tomlType(obj)
if (type !== 'table') throw typeError(type)
return stringifyObject('', '', obj, separator)
}
function typeError (type) {
return new Error('Can only stringify objects, not ' + type)
}
function getInlineKeys (obj) {
return Object.keys(obj).filter(key => isInline(obj[key]))
}
function getComplexKeys (obj) {
return Object.keys(obj).filter(key => !isInline(obj[key]))
}
function toJSON (obj) {
let nobj = Array.isArray(obj) ? [] : Object.prototype.hasOwnProperty.call(obj, '__proto__') ? {['__proto__']: undefined} : {}
for (let prop of Object.keys(obj)) {
if (obj[prop] && typeof obj[prop].toJSON === 'function' && !('toISOString' in obj[prop])) {
nobj[prop] = obj[prop].toJSON()
} else {
nobj[prop] = obj[prop]
}
}
return nobj
}
function stringifyObject (prefix, indent, obj, separator) {
obj = toJSON(obj)
let inlineKeys
let complexKeys
inlineKeys = getInlineKeys(obj)
complexKeys = getComplexKeys(obj)
const result = []
const inlineIndent = indent || ''
inlineKeys.forEach(key => {
var type = tomlType(obj[key])
if (type !== 'undefined' && type !== 'null') {
result.push(inlineIndent + stringifyKey(key) + ' = ' + stringifyAnyInline(obj[key], true, separator))
}
})
if (result.length > 0) result.push('')
const complexIndent = prefix && inlineKeys.length > 0 ? indent + ' ' : ''
complexKeys.forEach(key => {
result.push(stringifyComplex(prefix, complexIndent, key, obj[key], separator))
})
return result.join('\n')
}
function isInline (value) {
switch (tomlType(value)) {
case 'undefined':
case 'null':
case 'integer':
case 'nan':
case 'float':
case 'boolean':
case 'string':
case 'datetime':
return true
case 'array':
return value.length === 0 || tomlType(value[0]) !== 'table'
case 'table':
return Object.keys(value).length === 0
/* istanbul ignore next */
default:
return false
}
}
function tomlType (value) {
if (value === undefined) {
return 'undefined'
} else if (value === null) {
return 'null'
/* eslint-disable valid-typeof */
} else if (typeof value === 'bigint' || (Number.isInteger(value) && !Object.is(value, -0))) {
return 'integer'
} else if (typeof value === 'number') {
return 'float'
} else if (typeof value === 'boolean') {
return 'boolean'
} else if (typeof value === 'string') {
return 'string'
} else if ('toISOString' in value) {
return isNaN(value) ? 'undefined' : 'datetime'
} else if (Array.isArray(value)) {
return 'array'
} else {
return 'table'
}
}
function stringifyKey (key) {
const keyStr = String(key)
if (/^[-A-Za-z0-9_]+$/.test(keyStr)) {
return keyStr
} else {
return stringifyBasicString(keyStr)
}
}
function stringifyBasicString (str) {
return '"' + escapeString(str).replace(/"/g, '\\"') + '"'
}
function stringifyLiteralString (str) {
return "'" + str + "'"
}
function numpad (num, str) {
while (str.length < num) str = '0' + str
return str
}
function escapeString (str) {
return str.replace(/\\/g, '\\\\')
.replace(/[\b]/g, '\\b')
.replace(/\t/g, '\\t')
.replace(/\n/g, '\\n')
.replace(/\f/g, '\\f')
.replace(/\r/g, '\\r')
/* eslint-disable no-control-regex */
.replace(/([\u0000-\u001f\u007f])/, c => '\\u' + numpad(4, c.codePointAt(0).toString(16)))
/* eslint-enable no-control-regex */
}
function stringifyMultilineString (str) {
let escaped = str.split(/\n/).map(str => {
return escapeString(str).replace(/"(?="")/g, '\\"')
}).join('\n')
if (escaped.slice(-1) === '"') escaped += '\\\n'
return '"""\n' + escaped + '"""'
}
function stringifyAnyInline (value, multilineOk, separator) {
let type = tomlType(value)
if (type === 'string') {
if (multilineOk && /\n/.test(value)) {
type = 'string-multiline'
} else if (!/[\b\t\n\f\r']/.test(value) && /"/.test(value)) {
type = 'string-literal'
}
}
return stringifyInline(value, type, separator)
}
function stringifyInline (value, type, separator) {
/* istanbul ignore if */
if (!type) type = tomlType(value)
switch (type) {
case 'string-multiline':
return stringifyMultilineString(value)
case 'string':
return stringifyBasicString(value)
case 'string-literal':
return stringifyLiteralString(value)
case 'integer':
return stringifyInteger(value, separator)
case 'float':
return stringifyFloat(value, separator)
case 'boolean':
return stringifyBoolean(value)
case 'datetime':
return stringifyDatetime(value)
case 'array':
return stringifyInlineArray(value.filter(_ => tomlType(_) !== 'null' && tomlType(_) !== 'undefined' && tomlType(_) !== 'nan'))
case 'table':
return stringifyInlineTable(value)
/* istanbul ignore next */
default:
throw typeError(type)
}
}
function stringifyInteger (value, separator) {
if(separator!=null && separator !== ''){
return String(value).replace(/\B(?=(\d{3})+(?!\d))/g, separator)
}
return String(value);
}
function stringifyFloat (value, separator) {
if (value === Infinity) {
return 'inf'
} else if (value === -Infinity) {
return '-inf'
} else if (Object.is(value, NaN)) {
return 'nan'
} else if (Object.is(value, -0)) {
return '-0.0'
}
const [int, dec] = String(value).split('.')
return stringifyInteger(int, separator) + '.' + dec
}
function stringifyBoolean (value) {
return String(value)
}
function stringifyDatetime (value) {
return value.toISOString()
}
function stringifyInlineArray (values) {
values = toJSON(values)
let result = '['
const stringified = values.map(_ => stringifyInline(_))
if (stringified.join(', ').length > 60 || /\n/.test(stringified)) {
result += '\n ' + stringified.join(',\n ') + '\n'
} else {
result += ' ' + stringified.join(', ') + (stringified.length > 0 ? ' ' : '')
}
return result + ']'
}
function stringifyInlineTable (value) {
value = toJSON(value)
const result = []
Object.keys(value).forEach(key => {
result.push(stringifyKey(key) + ' = ' + stringifyAnyInline(value[key], false))
})
return '{ ' + result.join(', ') + (result.length > 0 ? ' ' : '') + '}'
}
function stringifyComplex (prefix, indent, key, value, separator) {
const valueType = tomlType(value)
/* istanbul ignore else */
if (valueType === 'array') {
return stringifyArrayOfTables(prefix, indent, key, value, separator)
} else if (valueType === 'table') {
return stringifyComplexTable(prefix, indent, key, value, separator)
} else {
throw typeError(valueType)
}
}
function stringifyArrayOfTables (prefix, indent, key, values, separator) {
values = toJSON(values)
const firstValueType = tomlType(values[0])
/* istanbul ignore if */
if (firstValueType !== 'table') throw typeError(firstValueType)
const fullKey = prefix + stringifyKey(key)
let result = ''
values.forEach(table => {
if (result.length > 0) result += '\n'
result += indent + '[[' + fullKey + ']]\n'
result += stringifyObject(fullKey + '.', indent, table, separator)
})
return result
}
function stringifyComplexTable (prefix, indent, key, value, separator) {
const fullKey = prefix + stringifyKey(key)
let result = ''
if (getInlineKeys(value).length > 0) {
result += indent + '[' + fullKey + ']\n'
}
return result + stringifyObject(fullKey + '.', indent, value, separator)
}
},{}],10:[function(require,module,exports){
(function (global){(function (){
'use strict'
/* eslint-disable no-new-wrappers, no-eval, camelcase, operator-linebreak */
module.exports = makeParserClass(require('./parser'))
module.exports.makeParserClass = makeParserClass
const TomlError = require('./error')
const createDateTime = require('./utils/create-datetime')
const createDateTimeFloat = require('./utils/create-datetime-float')
const createDate = require('./utils/create-date')
const createTime = require('./utils/create-time')
const CTRL_I = 0x09
const CTRL_J = 0x0A
const CTRL_M = 0x0D
const CTRL_CHAR_BOUNDARY = 0x1F // the last non-character in the latin1 region of unicode, except DEL
const CHAR_SP = 0x20
const CHAR_QUOT = 0x22
const CHAR_NUM = 0x23
const CHAR_APOS = 0x27
const CHAR_PLUS = 0x2B
const CHAR_COMMA = 0x2C
const CHAR_HYPHEN = 0x2D
const CHAR_PERIOD = 0x2E
const CHAR_0 = 0x30
const CHAR_1 = 0x31
const CHAR_7 = 0x37
const CHAR_9 = 0x39
const CHAR_COLON = 0x3A
const CHAR_EQUALS = 0x3D
const CHAR_A = 0x41
const CHAR_E = 0x45
const CHAR_F = 0x46
const CHAR_T = 0x54
const CHAR_U = 0x55
const CHAR_Z = 0x5A
const CHAR_LOWBAR = 0x5F
const CHAR_a = 0x61
const CHAR_b = 0x62
const CHAR_e = 0x65
const CHAR_f = 0x66
const CHAR_i = 0x69
const CHAR_l = 0x6C
const CHAR_n = 0x6E
const CHAR_o = 0x6F
const CHAR_r = 0x72
const CHAR_s = 0x73
const CHAR_t = 0x74
const CHAR_u = 0x75
const CHAR_x = 0x78
const CHAR_z = 0x7A
const CHAR_LCUB = 0x7B
const CHAR_RCUB = 0x7D
const CHAR_LSQB = 0x5B
const CHAR_BSOL = 0x5C
const CHAR_RSQB = 0x5D
const CHAR_DEL = 0x7F
const SURROGATE_FIRST = 0xD800
const SURROGATE_LAST = 0xDFFF
const escapes = {
[CHAR_b]: '\u0008',
[CHAR_t]: '\u0009',
[CHAR_n]: '\u000A',
[CHAR_f]: '\u000C',
[CHAR_r]: '\u000D',
[CHAR_QUOT]: '\u0022',
[CHAR_BSOL]: '\u005C'
}
function isDigit (cp) {
return cp >= CHAR_0 && cp <= CHAR_9
}
function isHexit (cp) {
return (cp >= CHAR_A && cp <= CHAR_F) || (cp >= CHAR_a && cp <= CHAR_f) || (cp >= CHAR_0 && cp <= CHAR_9)
}
function isBit (cp) {
return cp === CHAR_1 || cp === CHAR_0
}
function isOctit (cp) {
return (cp >= CHAR_0 && cp <= CHAR_7)
}
function isAlphaNumQuoteHyphen (cp) {
return (cp >= CHAR_A && cp <= CHAR_Z)
|| (cp >= CHAR_a && cp <= CHAR_z)
|| (cp >= CHAR_0 && cp <= CHAR_9)
|| cp === CHAR_APOS
|| cp === CHAR_QUOT
|| cp === CHAR_LOWBAR
|| cp === CHAR_HYPHEN
}
function isAlphaNumHyphen (cp) {
return (cp >= CHAR_A && cp <= CHAR_Z)
|| (cp >= CHAR_a && cp <= CHAR_z)
|| (cp >= CHAR_0 && cp <= CHAR_9)
|| cp === CHAR_LOWBAR
|| cp === CHAR_HYPHEN
}
const _type = Symbol('type')
const _declared = Symbol('declared')
const hasOwnProperty = Object.prototype.hasOwnProperty
const defineProperty = Object.defineProperty
const descriptor = {configurable: true, enumerable: true, writable: true, value: undefined}
function hasKey (obj, key) {
if (hasOwnProperty.call(obj, key)) return true
if (key === '__proto__') defineProperty(obj, '__proto__', descriptor)
return false
}
const INLINE_TABLE = Symbol('inline-table')
function InlineTable () {
return Object.defineProperties({}, {
[_type]: {value: INLINE_TABLE}
})
}
function isInlineTable (obj) {
if (obj === null || typeof (obj) !== 'object') return false
return obj[_type] === INLINE_TABLE
}
const TABLE = Symbol('table')
function Table () {
return Object.defineProperties({}, {
[_type]: {value: TABLE},
[_declared]: {value: false, writable: true}
})
}
function isTable (obj) {
if (obj === null || typeof (obj) !== 'object') return false
return obj[_type] === TABLE
}
const _contentType = Symbol('content-type')
const INLINE_LIST = Symbol('inline-list')
function InlineList (type) {
return Object.defineProperties([], {
[_type]: {value: INLINE_LIST},
[_contentType]: {value: type}
})
}
function isInlineList (obj) {
if (obj === null || typeof (obj) !== 'object') return false
return obj[_type] === INLINE_LIST
}
const LIST = Symbol('list')
function List () {
return Object.defineProperties([], {
[_type]: {value: LIST}
})
}
function isList (obj) {
if (obj === null || typeof (obj) !== 'object') return false
return obj[_type] === LIST
}
const _inspect = 'inspect'
class BoxedBigInt {
constructor (value) {
try {
this.value = global.BigInt.asIntN(64, value)
} catch (_) {
/* istanbul ignore next */
this.value = null
}
Object.defineProperty(this, _type, {value: INTEGER})
}
isNaN () {
return this.value === null
}
/* istanbul ignore next */
toString () {
return String(this.value)
}
/* istanbul ignore next */
[_inspect] () {
return `[BigInt: ${this.toString()}]}`
}
valueOf () {
return this.value
}
}
const INTEGER = Symbol('integer')
function Integer (value) {
let num = Number(value)
// -0 is a float thing, not an int thing
if (Object.is(num, -0)) num = 0
/* istanbul ignore else */
if (global.BigInt && !Number.isSafeInteger(num)) {
return new BoxedBigInt(value)
} else {
/* istanbul ignore next */
return Object.defineProperties(new Number(num), {
isNaN: {value: function () { return isNaN(this) }},
[_type]: {value: INTEGER},
[_inspect]: {value: () => `[Integer: ${value}]`}
})
}
}
function isInteger (obj) {
if (obj === null || typeof (obj) !== 'object') return false
return obj[_type] === INTEGER
}
const FLOAT = Symbol('float')
function Float (value) {
/* istanbul ignore next */
return Object.defineProperties(new Number(value), {
[_type]: {value: FLOAT},
[_inspect]: {value: () => `[Float: ${value}]`}
})
}
function isFloat (obj) {
if (obj === null || typeof (obj) !== 'object') return false
return obj[_type] === FLOAT
}
function tomlType (value) {
const type = typeof value
if (type === 'object') {
/* istanbul ignore if */
if (value === null) return 'null'
if (value instanceof Date) return 'datetime'
/* istanbul ignore else */
if (_type in value) {
switch (value[_type]) {
case INLINE_TABLE: return 'inline-table'
case INLINE_LIST: return 'inline-list'
/* istanbul ignore next */
case TABLE: return 'table'
/* istanbul ignore next */
case LIST: return 'list'
case FLOAT: return 'float'
case INTEGER: return 'integer'
}
}
}
return type
}
function makeParserClass (Parser) {
class TOMLParser extends Parser {
constructor () {
super()
this.ctx = this.obj = Table()
}
/* MATCH HELPER */
atEndOfWord () {
return this.char === CHAR_NUM || this.char === CTRL_I || this.char === CHAR_SP || this.atEndOfLine()
}
atEndOfLine () {
return this.char === Parser.END || this.char === CTRL_J || this.char === CTRL_M
}
parseStart () {
if (this.char === Parser.END) {
return null
} else if (this.char === CHAR_LSQB) {
return this.call(this.parseTableOrList)
} else if (this.char === CHAR_NUM) {
return this.call(this.parseComment)
} else if (this.char === CTRL_J || this.char === CHAR_SP || this.char === CTRL_I || this.char === CTRL_M) {
return null
} else if (isAlphaNumQuoteHyphen(this.char)) {
return this.callNow(this.parseAssignStatement)
} else {
throw this.error(new TomlError(`Unknown character "${this.char}"`))
}
}
// HELPER, this strips any whitespace and comments to the end of the line
// then RETURNS. Last state in a production.
parseWhitespaceToEOL () {
if (this.char === CHAR_SP || this.char === CTRL_I || this.char === CTRL_M) {
return null
} else if (this.char === CHAR_NUM) {
return this.goto(this.parseComment)
} else if (this.char === Parser.END || this.char === CTRL_J) {
return this.return()
} else {
throw this.error(new TomlError('Unexpected character, expected only whitespace or comments till end of line'))
}
}
/* ASSIGNMENT: key = value */
parseAssignStatement () {
return this.callNow(this.parseAssign, this.recordAssignStatement)
}
recordAssignStatement (kv) {
let target = this.ctx
let finalKey = kv.key.pop()
for (let kw of kv.key) {
if (hasKey(target, kw) && !isTable(target[kw])) {
throw this.error(new TomlError("Can't redefine existing key"))
}
target = target[kw] = target[kw] || Table()
}
if (hasKey(target, finalKey)) {
throw this.error(new TomlError("Can't redefine existing key"))
}
target[_declared] = true
// unbox our numbers
if (isInteger(kv.value) || isFloat(kv.value)) {
target[finalKey] = kv.value.valueOf()
} else {
target[finalKey] = kv.value
}
return this.goto(this.parseWhitespaceToEOL)
}
/* ASSSIGNMENT expression, key = value possibly inside an inline table */
parseAssign () {
return this.callNow(this.parseKeyword, this.recordAssignKeyword)
}
recordAssignKeyword (key) {
if (this.state.resultTable) {
this.state.resultTable.push(key)
} else {
this.state.resultTable = [key]
}
return this.goto(this.parseAssignKeywordPreDot)
}
parseAssignKeywordPreDot () {
if (this.char === CHAR_PERIOD) {
return this.next(this.parseAssignKeywordPostDot)
} else if (this.char !== CHAR_SP && this.char !== CTRL_I) {
return this.goto(this.parseAssignEqual)
}
}
parseAssignKeywordPostDot () {
if (this.char !== CHAR_SP && this.char !== CTRL_I) {
return this.callNow(this.parseKeyword, this.recordAssignKeyword)
}
}
parseAssignEqual () {
if (this.char === CHAR_EQUALS) {
return this.next(this.parseAssignPreValue)
} else {
throw this.error(new TomlError('Invalid character, expected "="'))
}
}
parseAssignPreValue () {
if (this.char === CHAR_SP || this.char === CTRL_I) {
return null
} else {
return this.callNow(this.parseValue, this.recordAssignValue)
}
}
recordAssignValue (value) {
return this.returnNow({key: this.state.resultTable, value: value})
}
/* COMMENTS: #...eol */
parseComment () {
do {
if (this.char === Parser.END || this.char === CTRL_J) {
return this.return()
} else if (this.char === CHAR_DEL || (this.char <= CTRL_CHAR_BOUNDARY && this.char !== CTRL_I)) {
throw this.errorControlCharIn('comments')
}
} while (this.nextChar())
}
/* TABLES AND LISTS, [foo] and [[foo]] */
parseTableOrList () {
if (this.char === CHAR_LSQB) {
this.next(this.parseList)
} else {
return this.goto(this.parseTable)
}
}
/* TABLE [foo.bar.baz] */
parseTable () {
this.ctx = this.obj
return this.goto(this.parseTableNext)
}
parseTableNext () {
if (this.char === CHAR_SP || this.char === CTRL_I) {
return null
} else {
return this.callNow(this.parseKeyword, this.parseTableMore)
}
}
parseTableMore (keyword) {
if (this.char === CHAR_SP || this.char === CTRL_I) {
return null
} else if (this.char === CHAR_RSQB) {
if (hasKey(this.ctx, keyword) && (!isTable(this.ctx[keyword]) || this.ctx[keyword][_declared])) {
throw this.error(new TomlError("Can't redefine existing key"))
} else {
this.ctx = this.ctx[keyword] = this.ctx[keyword] || Table()
this.ctx[_declared] = true
}
return this.next(this.parseWhitespaceToEOL)
} else if (this.char === CHAR_PERIOD) {
if (!hasKey(this.ctx, keyword)) {
this.ctx = this.ctx[keyword] = Table()
} else if (isTable(this.ctx[keyword])) {
this.ctx = this.ctx[keyword]
} else if (isList(this.ctx[keyword])) {
this.ctx = this.ctx[keyword][this.ctx[keyword].length - 1]
} else {
throw this.error(new TomlError("Can't redefine existing key"))
}
return this.next(this.parseTableNext)
} else {
throw this.error(new TomlError('Unexpected character, expected whitespace, . or ]'))
}
}
/* LIST [[a.b.c]] */
parseList () {
this.ctx = this.obj
return this.goto(this.parseListNext)
}
parseListNext () {
if (this.char === CHAR_SP || this.char === CTRL_I) {
return null
} else {
return this.callNow(this.parseKeyword, this.parseListMore)
}
}
parseListMore (keyword) {
if (this.char === CHAR_SP || this.char === CTRL_I) {
return null
} else if (this.char === CHAR_RSQB) {
if (!hasKey(this.ctx, keyword)) {
this.ctx[keyword] = List()
}
if (isInlineList(this.ctx[keyword])) {
throw this.error(new TomlError("Can't extend an inline array"))
} else if (isList(this.ctx[keyword])) {
const next = Table()
this.ctx[keyword].push(next)
this.ctx = next
} else {
throw this.error(new TomlError("Can't redefine an existing key"))
}
return this.next(this.parseListEnd)
} else if (this.char === CHAR_PERIOD) {
if (!hasKey(this.ctx, keyword)) {
this.ctx = this.ctx[keyword] = Table()
} else if (isInlineList(this.ctx[keyword])) {
throw this.error(new TomlError("Can't extend an inline array"))
} else if (isInlineTable(this.ctx[keyword])) {
throw this.error(new TomlError("Can't extend an inline table"))
} else if (isList(this.ctx[keyword])) {
this.ctx = this.ctx[keyword][this.ctx[keyword].length - 1]
} else if (isTable(this.ctx[keyword])) {
this.ctx = this.ctx[keyword]
} else {
throw this.error(new TomlError("Can't redefine an existing key"))
}
return this.next(this.parseListNext)
} else {
throw this.error(new TomlError('Unexpected character, expected whitespace, . or ]'))
}
}
parseListEnd (keyword) {
if (this.char === CHAR_RSQB) {
return this.next(this.parseWhitespaceToEOL)
} else {
throw this.error(new TomlError('Unexpected character, expected whitespace, . or ]'))
}
}
/* VALUE string, number, boolean, inline list, inline object */
parseValue () {
if (this.char === Parser.END) {
throw this.error(new TomlError('Key without value'))
} else if (this.char === CHAR_QUOT) {
return this.next(this.parseDoubleString)
} if (this.char === CHAR_APOS) {
return this.next(this.parseSingleString)
} else if (this.char === CHAR_HYPHEN || this.char === CHAR_PLUS) {
return this.goto(this.parseNumberSign)
} else if (this.char === CHAR_i) {
return this.next(this.parseInf)
} else if (this.char === CHAR_n) {
return this.next(this.parseNan)
} else if (isDigit(this.char)) {
return this.goto(this.parseNumberOrDateTime)
} else if (this.char === CHAR_t || this.char === CHAR_f) {
return this.goto(this.parseBoolean)
} else if (this.char === CHAR_LSQB) {
return this.call(this.parseInlineList, this.recordValue)
} else if (this.char === CHAR_LCUB) {
return this.call(this.parseInlineTable, this.recordValue)
} else {
throw this.error(new TomlError('Unexpected character, expecting string, number, datetime, boolean, inline array or inline table'))
}
}
recordValue (value) {
return this.returnNow(value)
}
parseInf () {
if (this.char === CHAR_n) {
return this.next(this.parseInf2)
} else {
throw this.error(new TomlError('Unexpected character, expected "inf", "+inf" or "-inf"'))
}
}
parseInf2 () {
if (this.char === CHAR_f) {
if (this.state.buf === '-') {
return this.return(-Infinity)
} else {
return this.return(Infinity)
}
} else {
throw this.error(new TomlError('Unexpected character, expected "inf", "+inf" or "-inf"'))
}
}
parseNan () {
if (this.char === CHAR_a) {
return this.next(this.parseNan2)
} else {
throw this.error(new TomlError('Unexpected character, expected "nan"'))
}
}
parseNan2 () {
if (this.char === CHAR_n) {
return this.return(NaN)
} else {
throw this.error(new TomlError('Unexpected character, expected "nan"'))
}
}
/* KEYS, barewords or basic, literal, or dotted */
parseKeyword () {
if (this.char === CHAR_QUOT) {
return this.next(this.parseBasicString)
} else if (this.char === CHAR_APOS) {
return this.next(this.parseLiteralString)
} else {
return this.goto(this.parseBareKey)
}
}
/* KEYS: barewords */
parseBareKey () {
do {
if (this.char === Parser.END) {
throw this.error(new TomlError('Key ended without value'))
} else if (isAlphaNumHyphen(this.char)) {
this.consume()
} else if (this.state.buf.length === 0) {
throw this.error(new TomlError('Empty bare keys are not allowed'))
} else {
return this.returnNow()
}
} while (this.nextChar())
}
/* STRINGS, single quoted (literal) */
parseSingleString () {
if (this.char === CHAR_APOS) {
return this.next(this.parseLiteralMultiStringMaybe)
} else {
return this.goto(this.parseLiteralString)
}
}
parseLiteralString () {
do {
if (this.char === CHAR_APOS) {
return this.return()
} else if (this.atEndOfLine()) {
throw this.error(new TomlError('Unterminated string'))
} else if (this.char === CHAR_DEL || (this.char <= CTRL_CHAR_BOUNDARY && this.char !== CTRL_I)) {
throw this.errorControlCharIn('strings')
} else {
this.consume()
}
} while (this.nextChar())
}
parseLiteralMultiStringMaybe () {
if (this.char === CHAR_APOS) {
return this.next(this.parseLiteralMultiString)
} else {
return this.returnNow()
}
}
parseLiteralMultiString () {
if (this.char === CTRL_M) {
return null
} else if (this.char === CTRL_J) {
return this.next(this.parseLiteralMultiStringContent)
} else {
return this.goto(this.parseLiteralMultiStringContent)
}
}
parseLiteralMultiStringContent () {
do {
if (this.char === CHAR_APOS) {
return this.next(this.parseLiteralMultiEnd)
} else if (this.char === Parser.END) {
throw this.error(new TomlError('Unterminated multi-line string'))
} else if (this.char === CHAR_DEL || (this.char <= CTRL_CHAR_BOUNDARY && this.char !== CTRL_I && this.char !== CTRL_J && this.char !== CTRL_M)) {
throw this.errorControlCharIn('strings')
} else {
this.consume()
}
} while (this.nextChar())
}
parseLiteralMultiEnd () {
if (this.char === CHAR_APOS) {
return this.next(this.parseLiteralMultiEnd2)
} else {
this.state.buf += "'"
return this.goto(this.parseLiteralMultiStringContent)
}
}
parseLiteralMultiEnd2 () {
if (this.char === CHAR_APOS) {
return this.next(this.parseLiteralMultiEnd3)
} else {
this.state.buf += "''"
return this.goto(this.parseLiteralMultiStringContent)
}
}
parseLiteralMultiEnd3 () {
if (this.char === CHAR_APOS) {
this.state.buf += "'"
return this.next(this.parseLiteralMultiEnd4)
} else {
return this.returnNow()
}
}
parseLiteralMultiEnd4 () {
if (this.char === CHAR_APOS) {
this.state.buf += "'"
return this.return()
} else {
return this.returnNow()
}
}
/* STRINGS double quoted */
parseDoubleString () {
if (this.char === CHAR_QUOT) {
return this.next(this.parseMultiStringMaybe)
} else {
return this.goto(this.parseBasicString)
}
}
parseBasicString () {
do {
if (this.char === CHAR_BSOL) {
return this.call(this.parseEscape, this.recordEscapeReplacement)
} else if (this.char === CHAR_QUOT) {
return this.return()
} else if (this.atEndOfLine()) {
throw this.error(new TomlError('Unterminated string'))
} else if (this.char === CHAR_DEL || (this.char <= CTRL_CHAR_BOUNDARY && this.char !== CTRL_I)) {
throw this.errorControlCharIn('strings')
} else {
this.consume()
}
} while (this.nextChar())
}
recordEscapeReplacement (replacement) {
this.state.buf += replacement
return this.goto(this.parseBasicString)
}
parseMultiStringMaybe () {
if (this.char === CHAR_QUOT) {
return this.next(this.parseMultiString)
} else {
return this.returnNow()
}
}
parseMultiString () {
if (this.char === CTRL_M) {
return null
} else if (this.char === CTRL_J) {
return this.next(this.parseMultiStringContent)
} else {
return this.goto(this.parseMultiStringContent)
}
}
parseMultiStringContent () {
do {
if (this.char === CHAR_BSOL) {
return this.call(this.parseMultiEscape, this.recordMultiEscapeReplacement)
} else if (this.char === CHAR_QUOT) {
return this.next(this.parseMultiEnd)
} else if (this.char === Parser.END) {
throw this.error(new TomlError('Unterminated multi-line string'))
} else if (this.char === CHAR_DEL || (this.char <= CTRL_CHAR_BOUNDARY && this.char !== CTRL_I && this.char !== CTRL_J && this.char !== CTRL_M)) {
throw this.errorControlCharIn('strings')
} else {
this.consume()
}
} while (this.nextChar())
}
errorControlCharIn (type) {
let displayCode = '\\u00'
if (this.char < 16) {
displayCode += '0'
}
displayCode += this.char.toString(16)
return this.error(new TomlError(`Control characters (codes < 0x1f and 0x7f) are not allowed in ${type}, use ${displayCode} instead`))
}
recordMultiEscapeReplacement (replacement) {
this.state.buf += replacement
return this.goto(this.parseMultiStringContent)
}
parseMultiEnd () {
if (this.char === CHAR_QUOT) {
return this.next(this.parseMultiEnd2)
} else {
this.state.buf += '"'
return this.goto(this.parseMultiStringContent)
}
}
parseMultiEnd2 () {
if (this.char === CHAR_QUOT) {
return this.next(this.parseMultiEnd3)
} else {
this.state.buf += '""'
return this.goto(this.parseMultiStringContent)
}
}
parseMultiEnd3 () {
if (this.char === CHAR_QUOT) {
this.state.buf += '"'
return this.next(this.parseMultiEnd4)
} else {
return this.returnNow()
}
}
parseMultiEnd4 () {
if (this.char === CHAR_QUOT) {
this.state.buf += '"'
return this.return()
} else {
return this.returnNow()
}
}
parseMultiEscape () {
if (this.char === CTRL_M || this.char === CTRL_J) {
return this.next(this.parseMultiTrim)
} else if (this.char === CHAR_SP || this.char === CTRL_I) {
return this.next(this.parsePreMultiTrim)
} else {
return this.goto(this.parseEscape)
}
}
parsePreMultiTrim () {
if (this.char === CHAR_SP || this.char === CTRL_I) {
return null
} else if (this.char === CTRL_M || this.char === CTRL_J) {
return this.next(this.parseMultiTrim)
} else {
throw this.error(new TomlError("Can't escape whitespace"))
}
}
parseMultiTrim () {
// explicitly whitespace here, END should follow the same path as chars
if (this.char === CTRL_J || this.char === CHAR_SP || this.char === CTRL_I || this.char === CTRL_M) {
return null
} else {
return this.returnNow()
}
}
parseEscape () {
if (this.char in escapes) {
return this.return(escapes[this.char])
} else if (this.char === CHAR_u) {
return this.call(this.parseSmallUnicode, this.parseUnicodeReturn)
} else if (this.char === CHAR_U) {
return this.call(this.parseLargeUnicode, this.parseUnicodeReturn)
} else {
throw this.error(new TomlError('Unknown escape character: ' + this.char))
}
}
parseUnicodeReturn (char) {
try {
const codePoint = parseInt(char, 16)
if (codePoint >= SURROGATE_FIRST && codePoint <= SURROGATE_LAST) {
throw this.error(new TomlError('Invalid unicode, character in range 0xD800 - 0xDFFF is reserved'))
}
return this.returnNow(String.fromCodePoint(codePoint))
} catch (err) {
throw this.error(TomlError.wrap(err))
}
}
parseSmallUnicode () {
if (!isHexit(this.char)) {
throw this.error(new TomlError('Invalid character in unicode sequence, expected hex'))
} else {
this.consume()
if (this.state.buf.length >= 4) return this.return()
}
}
parseLargeUnicode () {
if (!isHexit(this.char)) {
throw this.error(new TomlError('Invalid character in unicode sequence, expected hex'))
} else {
this.consume()
if (this.state.buf.length >= 8) return this.return()
}
}
/* NUMBERS */
parseNumberSign () {
this.consume()
return this.next(this.parseMaybeSignedInfOrNan)
}
parseMaybeSignedInfOrNan () {
if (this.char === CHAR_i) {
return this.next(this.parseInf)
} else if (this.char === CHAR_n) {
return this.next(this.parseNan)
} else {
return this.callNow(this.parseNoUnder, this.parseNumberIntegerStart)
}
}
parseNumberIntegerStart () {
if (this.char === CHAR_0) {
this.consume()
return this.next(this.parseNumberIntegerExponentOrDecimal)
} else {
return this.goto(this.parseNumberInteger)
}
}
parseNumberIntegerExponentOrDecimal () {
if (this.char === CHAR_PERIOD) {
this.consume()
return this.call(this.parseNoUnder, this.parseNumberFloat)
} else if (this.char === CHAR_E || this.char === CHAR_e) {
this.consume()
return this.next(this.parseNumberExponentSign)
} else {
return this.returnNow(Integer(this.state.buf))
}
}
parseNumberInteger () {
if (isDigit(this.char)) {
this.consume()
} else if (this.char === CHAR_LOWBAR) {
return this.call(this.parseNoUnder)
} else if (this.char === CHAR_E || this.char === CHAR_e) {
this.consume()
return this.next(this.parseNumberExponentSign)
} else if (this.char === CHAR_PERIOD) {
this.consume()
return this.call(this.parseNoUnder, this.parseNumberFloat)
} else {
const result = Integer(this.state.buf)
/* istanbul ignore if */
if (result.isNaN()) {
throw this.error(new TomlError('Invalid number'))
} else {
return this.returnNow(result)
}
}
}
parseNoUnder () {
if (this.char === CHAR_LOWBAR || this.char === CHAR_PERIOD || this.char === CHAR_E || this.char === CHAR_e) {
throw this.error(new TomlError('Unexpected character, expected digit'))
} else if (this.atEndOfWord()) {
throw this.error(new TomlError('Incomplete number'))
}
return this.returnNow()
}
parseNoUnderHexOctBinLiteral () {
if (this.char === CHAR_LOWBAR || this.char === CHAR_PERIOD) {
throw this.error(new TomlError('Unexpected character, expected digit'))
} else if (this.atEndOfWord()) {
throw this.error(new TomlError('Incomplete number'))
}
return this.returnNow()
}
parseNumberFloat () {
if (this.char === CHAR_LOWBAR) {
return this.call(this.parseNoUnder, this.parseNumberFloat)
} else if (isDigit(this.char)) {
this.consume()
} else if (this.char === CHAR_E || this.char === CHAR_e) {
this.consume()
return this.next(this.parseNumberExponentSign)
} else {
return this.returnNow(Float(this.state.buf))
}
}
parseNumberExponentSign () {
if (isDigit(this.char)) {
return this.goto(this.parseNumberExponent)
} else if (this.char === CHAR_HYPHEN || this.char === CHAR_PLUS) {
this.consume()
this.call(this.parseNoUnder, this.parseNumberExponent)
} else {
throw this.error(new TomlError('Unexpected character, expected -, + or digit'))
}
}
parseNumberExponent () {
if (isDigit(this.char)) {
this.consume()
} else if (this.char === CHAR_LOWBAR) {
return this.call(this.parseNoUnder)
} else {
return this.returnNow(Float(this.state.buf))
}
}
/* NUMBERS or DATETIMES */
parseNumberOrDateTime () {
if (this.char === CHAR_0) {
this.consume()
return this.next(this.parseNumberBaseOrDateTime)
} else {
return this.goto(this.parseNumberOrDateTimeOnly)
}
}
parseNumberOrDateTimeOnly () {
// note, if two zeros are in a row then it MUST be a date
if (this.char === CHAR_LOWBAR) {
return this.call(this.parseNoUnder, this.parseNumberInteger)
} else if (isDigit(this.char)) {
this.consume()
if (this.state.buf.length > 4) this.next(this.parseNumberInteger)
} else if (this.char === CHAR_E || this.char === CHAR_e) {
this.consume()
return this.next(this.parseNumberExponentSign)
} else if (this.char === CHAR_PERIOD) {
this.consume()
return this.call(this.parseNoUnder, this.parseNumberFloat)
} else if (this.char === CHAR_HYPHEN) {
return this.goto(this.parseDateTime)
} else if (this.char === CHAR_COLON) {
return this.goto(this.parseOnlyTimeHour)
} else {
return this.returnNow(Integer(this.state.buf))
}
}
parseDateTimeOnly () {
if (this.state.buf.length < 4) {
if (isDigit(this.char)) {
return this.consume()
} else if (this.char === CHAR_COLON) {
return this.goto(this.parseOnlyTimeHour)
} else {
throw this.error(new TomlError('Expected digit while parsing year part of a date'))
}
} else {
if (this.char === CHAR_HYPHEN) {
return this.goto(this.parseDateTime)
} else {
throw this.error(new TomlError('Expected hyphen (-) while parsing year part of date'))
}
}
}
parseNumberBaseOrDateTime () {
if (this.char === CHAR_b) {
this.consume()
return this.call(this.parseNoUnderHexOctBinLiteral, this.parseIntegerBin)
} else if (this.char === CHAR_o) {
this.consume()
return this.call(this.parseNoUnderHexOctBinLiteral, this.parseIntegerOct)
} else if (this.char === CHAR_x) {
this.consume()
return this.call(this.parseNoUnderHexOctBinLiteral, this.parseIntegerHex)
} else if (this.char === CHAR_PERIOD) {
return this.goto(this.parseNumberInteger)
} else if (isDigit(this.char)) {
return this.goto(this.parseDateTimeOnly)
} else {
return this.returnNow(Integer(this.state.buf))
}
}
parseIntegerHex () {
if (isHexit(this.char)) {
this.consume()
} else if (this.char === CHAR_LOWBAR) {
return this.call(this.parseNoUnderHexOctBinLiteral)
} else {
const result = Integer(this.state.buf)
/* istanbul ignore if */
if (result.isNaN()) {
throw this.error(new TomlError('Invalid number'))
} else {
return this.returnNow(result)
}
}
}
parseIntegerOct () {
if (isOctit(this.char)) {
this.consume()
} else if (this.char === CHAR_LOWBAR) {
return this.call(this.parseNoUnderHexOctBinLiteral)
} else {
const result = Integer(this.state.buf)
/* istanbul ignore if */
if (result.isNaN()) {
throw this.error(new TomlError('Invalid number'))
} else {
return this.returnNow(result)
}
}
}
parseIntegerBin () {
if (isBit(this.char)) {
this.consume()
} else if (this.char === CHAR_LOWBAR) {
return this.call(this.parseNoUnderHexOctBinLiteral)
} else {
const result = Integer(this.state.buf)
/* istanbul ignore if */
if (result.isNaN()) {
throw this.error(new TomlError('Invalid number'))
} else {
return this.returnNow(result)
}
}
}
/* DATETIME */
parseDateTime () {
// we enter here having just consumed the year and about to consume the hyphen
if (this.state.buf.length < 4) {
throw this.error(new TomlError('Years less than 1000 must be zero padded to four characters'))
}
this.state.result = this.state.buf
this.state.buf = ''
return this.next(this.parseDateMonth)
}
parseDateMonth () {
if (this.char === CHAR_HYPHEN) {
if (this.state.buf.length < 2) {
throw this.error(new TomlError('Months less than 10 must be zero padded to two characters'))
}
this.state.result += '-' + this.state.buf
this.state.buf = ''
return this.next(this.parseDateDay)
} else if (isDigit(this.char)) {
this.consume()
} else {
throw this.error(new TomlError('Incomplete datetime'))
}
}
parseDateDay () {
if (this.char === CHAR_T || this.char === CHAR_SP) {
if (this.state.buf.length < 2) {
throw this.error(new TomlError('Days less than 10 must be zero padded to two characters'))
}
this.state.result += '-' + this.state.buf
this.state.buf = ''
return this.next(this.parseStartTimeHour)
} else if (this.atEndOfWord()) {
return this.returnNow(createDate(this.state.result + '-' + this.state.buf))
} else if (isDigit(this.char)) {
this.consume()
} else {
throw this.error(new TomlError('Incomplete datetime'))
}
}
parseStartTimeHour () {
if (this.atEndOfWord()) {
return this.returnNow(createDate(this.state.result))
} else {
return this.goto(this.parseTimeHour)
}
}
parseTimeHour () {
if (this.char === CHAR_COLON) {
if (this.state.buf.length < 2) {
throw this.error(new TomlError('Hours less than 10 must be zero padded to two characters'))
}
this.state.result += 'T' + this.state.buf
this.state.buf = ''
return this.next(this.parseTimeMin)
} else if (isDigit(this.char)) {
this.consume()
} else {
throw this.error(new TomlError('Incomplete datetime'))
}
}
parseTimeMin () {
if (this.state.buf.length < 2 && isDigit(this.char)) {
this.consume()
} else if (this.state.buf.length === 2 && this.char === CHAR_COLON) {
this.state.result += ':' + this.state.buf
this.state.buf = ''
return this.next(this.parseTimeSec)
} else {
throw this.error(new TomlError('Incomplete datetime'))
}
}
parseTimeSec () {
if (isDigit(this.char)) {
this.consume()
if (this.state.buf.length === 2) {
this.state.result += ':' + this.state.buf
this.state.buf = ''
return this.next(this.parseTimeZoneOrFraction)
}
} else {
throw this.error(new TomlError('Incomplete datetime'))
}
}
parseOnlyTimeHour () {
/* istanbul ignore else */
if (this.char === CHAR_COLON) {
if (this.state.buf.length < 2) {
throw this.error(new TomlError('Hours less than 10 must be zero padded to two characters'))
}
this.state.result = this.state.buf
this.state.buf = ''
return this.next(this.parseOnlyTimeMin)
} else {
throw this.error(new TomlError('Incomplete time'))
}
}
parseOnlyTimeMin () {
if (this.state.buf.length < 2 && isDigit(this.char)) {
this.consume()
} else if (this.state.buf.length === 2 && this.char === CHAR_COLON) {
this.state.result += ':' + this.state.buf
this.state.buf = ''
return this.next(this.parseOnlyTimeSec)
} else {
throw this.error(new TomlError('Incomplete time'))
}
}
parseOnlyTimeSec () {
if (isDigit(this.char)) {
this.consume()
if (this.state.buf.length === 2) {
return this.next(this.parseOnlyTimeFractionMaybe)
}
} else {
throw this.error(new TomlError('Incomplete time'))
}
}
parseOnlyTimeFractionMaybe () {
this.state.result += ':' + this.state.buf
if (this.char === CHAR_PERIOD) {
this.state.buf = ''
this.next(this.parseOnlyTimeFraction)
} else {
return this.return(createTime(this.state.result))
}
}
parseOnlyTimeFraction () {
if (isDigit(this.char)) {
this.consume()
} else if (this.atEndOfWord()) {
if (this.state.buf.length === 0) throw this.error(new TomlError('Expected digit in milliseconds'))
return this.returnNow(createTime(this.state.result + '.' + this.state.buf))
} else {
throw this.error(new TomlError('Unexpected character in datetime, expected period (.), minus (-), plus (+) or Z'))
}
}
parseTimeZoneOrFraction () {
if (this.char === CHAR_PERIOD) {
this.consume()
this.next(this.parseDateTimeFraction)
} else if (this.char === CHAR_HYPHEN || this.char === CHAR_PLUS) {
this.consume()
this.next(this.parseTimeZoneHour)
} else if (this.char === CHAR_Z) {
this.consume()
return this.return(createDateTime(this.state.result + this.state.buf))
} else if (this.atEndOfWord()) {
return this.returnNow(createDateTimeFloat(this.state.result + this.state.buf))
} else {
throw this.error(new TomlError('Unexpected character in datetime, expected period (.), minus (-), plus (+) or Z'))
}
}
parseDateTimeFraction () {
if (isDigit(this.char)) {
this.consume()
} else if (this.state.buf.length === 1) {
throw this.error(new TomlError('Expected digit in milliseconds'))
} else if (this.char === CHAR_HYPHEN || this.char === CHAR_PLUS) {
this.consume()
this.next(this.parseTimeZoneHour)
} else if (this.char === CHAR_Z) {
this.consume()
return this.return(createDateTime(this.state.result + this.state.buf))
} else if (this.atEndOfWord()) {
return this.returnNow(createDateTimeFloat(this.state.result + this.state.buf))
} else {
throw this.error(new TomlError('Unexpected character in datetime, expected period (.), minus (-), plus (+) or Z'))
}
}
parseTimeZoneHour () {
if (isDigit(this.char)) {
this.consume()
// FIXME: No more regexps
if (/\d\d$/.test(this.state.buf)) return this.next(this.parseTimeZoneSep)
} else {
throw this.error(new TomlError('Unexpected character in datetime, expected digit'))
}
}
parseTimeZoneSep () {
if (this.char === CHAR_COLON) {
this.consume()
this.next(this.parseTimeZoneMin)
} else {
throw this.error(new TomlError('Unexpected character in datetime, expected colon'))
}
}
parseTimeZoneMin () {
if (isDigit(this.char)) {
this.consume()
if (/\d\d$/.test(this.state.buf)) return this.return(createDateTime(this.state.result + this.state.buf))
} else {
throw this.error(new TomlError('Unexpected character in datetime, expected digit'))
}
}
/* BOOLEAN */
parseBoolean () {
/* istanbul ignore else */
if (this.char === CHAR_t) {
this.consume()
return this.next(this.parseTrue_r)
} else if (this.char === CHAR_f) {
this.consume()
return this.next(this.parseFalse_a)
}
}
parseTrue_r () {
if (this.char === CHAR_r) {
this.consume()
return this.next(this.parseTrue_u)
} else {
throw this.error(new TomlError('Invalid boolean, expected true or false'))
}
}
parseTrue_u () {
if (this.char === CHAR_u) {
this.consume()
return this.next(this.parseTrue_e)
} else {
throw this.error(new TomlError('Invalid boolean, expected true or false'))
}
}
parseTrue_e () {
if (this.char === CHAR_e) {
return this.return(true)
} else {
throw this.error(new TomlError('Invalid boolean, expected true or false'))
}
}
parseFalse_a () {
if (this.char === CHAR_a) {
this.consume()
return this.next(this.parseFalse_l)
} else {
throw this.error(new TomlError('Invalid boolean, expected true or false'))
}
}
parseFalse_l () {
if (this.char === CHAR_l) {
this.consume()
return this.next(this.parseFalse_s)
} else {
throw this.error(new TomlError('Invalid boolean, expected true or false'))
}
}
parseFalse_s () {
if (this.char === CHAR_s) {
this.consume()
return this.next(this.parseFalse_e)
} else {
throw this.error(new TomlError('Invalid boolean, expected true or false'))
}
}
parseFalse_e () {
if (this.char === CHAR_e) {
return this.return(false)
} else {
throw this.error(new TomlError('Invalid boolean, expected true or false'))
}
}
/* INLINE LISTS */
parseInlineList () {
if (this.char === CHAR_SP || this.char === CTRL_I || this.char === CTRL_M || this.char === CTRL_J) {
return null
} else if (this.char === Parser.END) {
throw this.error(new TomlError('Unterminated inline array'))
} else if (this.char === CHAR_NUM) {
return this.call(this.parseComment)
} else if (this.char === CHAR_RSQB) {
return this.return(this.state.resultArr || InlineList())
} else {
return this.callNow(this.parseValue, this.recordInlineListValue)
}
}
recordInlineListValue (value) {
if (!this.state.resultArr) {
this.state.resultArr = InlineList(tomlType(value))
}
if (isFloat(value) || isInteger(value)) {
// unbox now that we've verified they're ok
this.state.resultArr.push(value.valueOf())
} else {
this.state.resultArr.push(value)
}
return this.goto(this.parseInlineListNext)
}
parseInlineListNext () {
if (this.char === CHAR_SP || this.char === CTRL_I || this.char === CTRL_M || this.char === CTRL_J) {
return null
} else if (this.char === CHAR_NUM) {
return this.call(this.parseComment)
} else if (this.char === CHAR_COMMA) {
return this.next(this.parseInlineList)
} else if (this.char === CHAR_RSQB) {
return this.goto(this.parseInlineList)
} else {
throw this.error(new TomlError('Invalid character, expected whitespace, comma (,) or close bracket (])'))
}
}
/* INLINE TABLE */
parseInlineTable () {
if (this.char === CHAR_SP || this.char === CTRL_I) {
return null
} else if (this.char === Parser.END || this.char === CHAR_NUM || this.char === CTRL_J || this.char === CTRL_M) {
throw this.error(new TomlError('Unterminated inline array'))
} else if (this.char === CHAR_RCUB) {
return this.return(this.state.resultTable || InlineTable())
} else {
if (!this.state.resultTable) this.state.resultTable = InlineTable()
return this.callNow(this.parseAssign, this.recordInlineTableValue)
}
}
recordInlineTableValue (kv) {
let target = this.state.resultTable
let finalKey = kv.key.pop()
for (let kw of kv.key) {
if (hasKey(target, kw) && (!isTable(target[kw]) || target[kw][_declared])) {
throw this.error(new TomlError("Can't redefine existing key"))
}
target = target[kw] = target[kw] || Table()
}
if (hasKey(target, finalKey)) {
throw this.error(new TomlError("Can't redefine existing key"))
}
if (isInteger(kv.value) || isFloat(kv.value)) {
target[finalKey] = kv.value.valueOf()
} else {
target[finalKey] = kv.value
}
return this.goto(this.parseInlineTableNext)
}
parseInlineTableNext () {
if (this.char === CHAR_SP || this.char === CTRL_I) {
return null
} else if (this.char === Parser.END || this.char === CHAR_NUM || this.char === CTRL_J || this.char === CTRL_M) {
throw this.error(new TomlError('Unterminated inline array'))
} else if (this.char === CHAR_COMMA) {
return this.next(this.parseInlineTablePostComma)
} else if (this.char === CHAR_RCUB) {
return this.goto(this.parseInlineTable)
} else {
throw this.error(new TomlError('Invalid character, expected whitespace, comma (,) or close bracket (])'))
}
}
parseInlineTablePostComma () {
if (this.char === CHAR_SP || this.char === CTRL_I) {
return null
} else if (this.char === Parser.END || this.char === CHAR_NUM || this.char === CTRL_J || this.char === CTRL_M) {
throw this.error(new TomlError('Unterminated inline array'))
} else if (this.char === CHAR_COMMA) {
throw this.error(new TomlError('Empty elements in inline tables are not permitted'))
} else if (this.char === CHAR_RCUB) {
throw this.error(new TomlError('Trailing commas in inline tables are not permitted'))
} else {
return this.goto(this.parseInlineTable)
}
}
}
return TOMLParser
}
}).call(this)}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"./error":2,"./parser":8,"./utils/create-date":11,"./utils/create-datetime":13,"./utils/create-datetime-float":12,"./utils/create-time":14}],11:[function(require,module,exports){
(function (global){(function (){
'use strict'
const f = require('./format-num.js')
const DateTime = global.Date
class Date extends DateTime {
constructor (value) {
super(value)
this.isDate = true
}
toISOString () {
return `${this.getUTCFullYear()}-${f(2, this.getUTCMonth() + 1)}-${f(2, this.getUTCDate())}`
}
}
module.exports = value => {
const date = new Date(value)
/* istanbul ignore if */
if (isNaN(date)) {
throw new TypeError('Invalid Datetime')
} else {
return date
}
}
}).call(this)}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"./format-num.js":15}],12:[function(require,module,exports){
'use strict'
const f = require('./format-num.js')
class FloatingDateTime extends Date {
constructor (value) {
super(value + 'Z')
this.isFloating = true
}
toISOString () {
const date = `${this.getUTCFullYear()}-${f(2, this.getUTCMonth() + 1)}-${f(2, this.getUTCDate())}`
const time = `${f(2, this.getUTCHours())}:${f(2, this.getUTCMinutes())}:${f(2, this.getUTCSeconds())}.${f(3, this.getUTCMilliseconds())}`
return `${date}T${time}`
}
}
module.exports = value => {
const date = new FloatingDateTime(value)
/* istanbul ignore if */
if (isNaN(date)) {
throw new TypeError('Invalid Datetime')
} else {
return date
}
}
},{"./format-num.js":15}],13:[function(require,module,exports){
'use strict'
module.exports = value => {
const date = new Date(value)
/* istanbul ignore if */
if (isNaN(date)) {
throw new TypeError('Invalid Datetime')
} else {
return date
}
}
},{}],14:[function(require,module,exports){
'use strict'
const f = require('./format-num.js')
class Time extends Date {
constructor (value) {
super(`0000-01-01T${value}Z`)
this.isTime = true
}
toISOString () {
return `${f(2, this.getUTCHours())}:${f(2, this.getUTCMinutes())}:${f(2, this.getUTCSeconds())}.${f(3, this.getUTCMilliseconds())}`
}
}
module.exports = value => {
const date = new Time(value)
/* istanbul ignore if */
if (isNaN(date)) {
throw new TypeError('Invalid Datetime')
} else {
return date
}
}
},{"./format-num.js":15}],15:[function(require,module,exports){
'use strict'
module.exports = (d, num) => {
num = String(num)
while (num.length < d) num = '0' + num
return num
}
},{}],16:[function(require,module,exports){
'use strict'
exports.byteLength = byteLength
exports.toByteArray = toByteArray
exports.fromByteArray = fromByteArray
var lookup = []
var revLookup = []
var Arr = typeof Uint8Array !== 'undefined' ? Uint8Array : Array
var code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
for (var i = 0, len = code.length; i < len; ++i) {
lookup[i] = code[i]
revLookup[code.charCodeAt(i)] = i
}
// Support decoding URL-safe base64 strings, as Node.js does.
// See: https://en.wikipedia.org/wiki/Base64#URL_applications
revLookup['-'.charCodeAt(0)] = 62
revLookup['_'.charCodeAt(0)] = 63
function getLens (b64) {
var len = b64.length
if (len % 4 > 0) {
throw new Error('Invalid string. Length must be a multiple of 4')
}
// Trim off extra bytes after placeholder bytes are found
// See: https://github.com/beatgammit/base64-js/issues/42
var validLen = b64.indexOf('=')
if (validLen === -1) validLen = len
var placeHoldersLen = validLen === len
? 0
: 4 - (validLen % 4)
return [validLen, placeHoldersLen]
}
// base64 is 4/3 + up to two characters of the original data
function byteLength (b64) {
var lens = getLens(b64)
var validLen = lens[0]
var placeHoldersLen = lens[1]
return ((validLen + placeHoldersLen) * 3 / 4) - placeHoldersLen
}
function _byteLength (b64, validLen, placeHoldersLen) {
return ((validLen + placeHoldersLen) * 3 / 4) - placeHoldersLen
}
function toByteArray (b64) {
var tmp
var lens = getLens(b64)
var validLen = lens[0]
var placeHoldersLen = lens[1]
var arr = new Arr(_byteLength(b64, validLen, placeHoldersLen))
var curByte = 0
// if there are placeholders, only get up to the last complete 4 chars
var len = placeHoldersLen > 0
? validLen - 4
: validLen
var i
for (i = 0; i < len; i += 4) {
tmp =
(revLookup[b64.charCodeAt(i)] << 18) |
(revLookup[b64.charCodeAt(i + 1)] << 12) |
(revLookup[b64.charCodeAt(i + 2)] << 6) |
revLookup[b64.charCodeAt(i + 3)]
arr[curByte++] = (tmp >> 16) & 0xFF
arr[curByte++] = (tmp >> 8) & 0xFF
arr[curByte++] = tmp & 0xFF
}
if (placeHoldersLen === 2) {
tmp =
(revLookup[b64.charCodeAt(i)] << 2) |
(revLookup[b64.charCodeAt(i + 1)] >> 4)
arr[curByte++] = tmp & 0xFF
}
if (placeHoldersLen === 1) {
tmp =
(revLookup[b64.charCodeAt(i)] << 10) |
(revLookup[b64.charCodeAt(i + 1)] << 4) |
(revLookup[b64.charCodeAt(i + 2)] >> 2)
arr[curByte++] = (tmp >> 8) & 0xFF
arr[curByte++] = tmp & 0xFF
}
return arr
}
function tripletToBase64 (num) {
return lookup[num >> 18 & 0x3F] +
lookup[num >> 12 & 0x3F] +
lookup[num >> 6 & 0x3F] +
lookup[num & 0x3F]
}
function encodeChunk (uint8, start, end) {
var tmp
var output = []
for (var i = start; i < end; i += 3) {
tmp =
((uint8[i] << 16) & 0xFF0000) +
((uint8[i + 1] << 8) & 0xFF00) +
(uint8[i + 2] & 0xFF)
output.push(tripletToBase64(tmp))
}
return output.join('')
}
function fromByteArray (uint8) {
var tmp
var len = uint8.length
var extraBytes = len % 3 // if we have 1 byte left, pad 2 bytes
var parts = []
var maxChunkLength = 16383 // must be multiple of 3
// go through the array every three bytes, we'll deal with trailing stuff later
for (var i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) {
parts.push(encodeChunk(uint8, i, (i + maxChunkLength) > len2 ? len2 : (i + maxChunkLength)))
}
// pad the end with zeros, but make sure to not forget the extra bytes
if (extraBytes === 1) {
tmp = uint8[len - 1]
parts.push(
lookup[tmp >> 2] +
lookup[(tmp << 4) & 0x3F] +
'=='
)
} else if (extraBytes === 2) {
tmp = (uint8[len - 2] << 8) + uint8[len - 1]
parts.push(
lookup[tmp >> 10] +
lookup[(tmp >> 4) & 0x3F] +
lookup[(tmp << 2) & 0x3F] +
'='
)
}
return parts.join('')
}
},{}],17:[function(require,module,exports){
},{}],18:[function(require,module,exports){
(function (Buffer){(function (){
/*!
* The buffer module from node.js, for the browser.
*
* @author Feross Aboukhadijeh <https://feross.org>
* @license MIT
*/
/* eslint-disable no-proto */
'use strict'
var base64 = require('base64-js')
var ieee754 = require('ieee754')
exports.Buffer = Buffer
exports.SlowBuffer = SlowBuffer
exports.INSPECT_MAX_BYTES = 50
var K_MAX_LENGTH = 0x7fffffff
exports.kMaxLength = K_MAX_LENGTH
/**
* If `Buffer.TYPED_ARRAY_SUPPORT`:
* === true Use Uint8Array implementation (fastest)
* === false Print warning and recommend using `buffer` v4.x which has an Object
* implementation (most compatible, even IE6)
*
* Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+,
* Opera 11.6+, iOS 4.2+.
*
* We report that the browser does not support typed arrays if the are not subclassable
* using __proto__. Firefox 4-29 lacks support for adding new properties to `Uint8Array`
* (See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438). IE 10 lacks support
* for __proto__ and has a buggy typed array implementation.
*/
Buffer.TYPED_ARRAY_SUPPORT = typedArraySupport()
if (!Buffer.TYPED_ARRAY_SUPPORT && typeof console !== 'undefined' &&
typeof console.error === 'function') {
console.error(
'This browser lacks typed array (Uint8Array) support which is required by ' +
'`buffer` v5.x. Use `buffer` v4.x if you require old browser support.'
)
}
function typedArraySupport () {
// Can typed array instances can be augmented?
try {
var arr = new Uint8Array(1)
arr.__proto__ = { __proto__: Uint8Array.prototype, foo: function () { return 42 } }
return arr.foo() === 42
} catch (e) {
return false
}
}
Object.defineProperty(Buffer.prototype, 'parent', {
enumerable: true,
get: function () {
if (!Buffer.isBuffer(this)) return undefined
return this.buffer
}
})
Object.defineProperty(Buffer.prototype, 'offset', {
enumerable: true,
get: function () {
if (!Buffer.isBuffer(this)) return undefined
return this.byteOffset
}
})
function createBuffer (length) {
if (length > K_MAX_LENGTH) {
throw new RangeError('The value "' + length + '" is invalid for option "size"')
}
// Return an augmented `Uint8Array` instance
var buf = new Uint8Array(length)
buf.__proto__ = Buffer.prototype
return buf
}
/**
* The Buffer constructor returns instances of `Uint8Array` that have their
* prototype changed to `Buffer.prototype`. Furthermore, `Buffer` is a subclass of
* `Uint8Array`, so the returned instances will have all the node `Buffer` methods
* and the `Uint8Array` methods. Square bracket notation works as expected -- it
* returns a single octet.
*
* The `Uint8Array` prototype remains unmodified.
*/
function Buffer (arg, encodingOrOffset, length) {
// Common case.
if (typeof arg === 'number') {
if (typeof encodingOrOffset === 'string') {
throw new TypeError(
'The "string" argument must be of type string. Received type number'
)
}
return allocUnsafe(arg)
}
return from(arg, encodingOrOffset, length)
}
// Fix subarray() in ES2016. See: https://github.com/feross/buffer/pull/97
if (typeof Symbol !== 'undefined' && Symbol.species != null &&
Buffer[Symbol.species] === Buffer) {
Object.defineProperty(Buffer, Symbol.species, {
value: null,
configurable: true,
enumerable: false,
writable: false
})
}
Buffer.poolSize = 8192 // not used by this implementation
function from (value, encodingOrOffset, length) {
if (typeof value === 'string') {
return fromString(value, encodingOrOffset)
}
if (ArrayBuffer.isView(value)) {
return fromArrayLike(value)
}
if (value == null) {
throw TypeError(
'The first argument must be one of type string, Buffer, ArrayBuffer, Array, ' +
'or Array-like Object. Received type ' + (typeof value)
)
}
if (isInstance(value, ArrayBuffer) ||
(value && isInstance(value.buffer, ArrayBuffer))) {
return fromArrayBuffer(value, encodingOrOffset, length)
}
if (typeof value === 'number') {
throw new TypeError(
'The "value" argument must not be of type number. Received type number'
)
}
var valueOf = value.valueOf && value.valueOf()
if (valueOf != null && valueOf !== value) {
return Buffer.from(valueOf, encodingOrOffset, length)
}
var b = fromObject(value)
if (b) return b
if (typeof Symbol !== 'undefined' && Symbol.toPrimitive != null &&
typeof value[Symbol.toPrimitive] === 'function') {
return Buffer.from(
value[Symbol.toPrimitive]('string'), encodingOrOffset, length
)
}
throw new TypeError(
'The first argument must be one of type string, Buffer, ArrayBuffer, Array, ' +
'or Array-like Object. Received type ' + (typeof value)
)
}
/**
* Functionally equivalent to Buffer(arg, encoding) but throws a TypeError
* if value is a number.
* Buffer.from(str[, encoding])
* Buffer.from(array)
* Buffer.from(buffer)
* Buffer.from(arrayBuffer[, byteOffset[, length]])
**/
Buffer.from = function (value, encodingOrOffset, length) {
return from(value, encodingOrOffset, length)
}
// Note: Change prototype *after* Buffer.from is defined to workaround Chrome bug:
// https://github.com/feross/buffer/pull/148
Buffer.prototype.__proto__ = Uint8Array.prototype
Buffer.__proto__ = Uint8Array
function assertSize (size) {
if (typeof size !== 'number') {
throw new TypeError('"size" argument must be of type number')
} else if (size < 0) {
throw new RangeError('The value "' + size + '" is invalid for option "size"')
}
}
function alloc (size, fill, encoding) {
assertSize(size)
if (size <= 0) {
return createBuffer(size)
}
if (fill !== undefined) {
// Only pay attention to encoding if it's a string. This
// prevents accidentally sending in a number that would
// be interpretted as a start offset.
return typeof encoding === 'string'
? createBuffer(size).fill(fill, encoding)
: createBuffer(size).fill(fill)
}
return createBuffer(size)
}
/**
* Creates a new filled Buffer instance.
* alloc(size[, fill[, encoding]])
**/
Buffer.alloc = function (size, fill, encoding) {
return alloc(size, fill, encoding)
}
function allocUnsafe (size) {
assertSize(size)
return createBuffer(size < 0 ? 0 : checked(size) | 0)
}
/**
* Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance.
* */
Buffer.allocUnsafe = function (size) {
return allocUnsafe(size)
}
/**
* Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance.
*/
Buffer.allocUnsafeSlow = function (size) {
return allocUnsafe(size)
}
function fromString (string, encoding) {
if (typeof encoding !== 'string' || encoding === '') {
encoding = 'utf8'
}
if (!Buffer.isEncoding(encoding)) {
throw new TypeError('Unknown encoding: ' + encoding)
}
var length = byteLength(string, encoding) | 0
var buf = createBuffer(length)
var actual = buf.write(string, encoding)
if (actual !== length) {
// Writing a hex string, for example, that contains invalid characters will
// cause everything after the first invalid character to be ignored. (e.g.
// 'abxxcd' will be treated as 'ab')
buf = buf.slice(0, actual)
}
return buf
}
function fromArrayLike (array) {
var length = array.length < 0 ? 0 : checked(array.length) | 0
var buf = createBuffer(length)
for (var i = 0; i < length; i += 1) {
buf[i] = array[i] & 255
}
return buf
}
function fromArrayBuffer (array, byteOffset, length) {
if (byteOffset < 0 || array.byteLength < byteOffset) {
throw new RangeError('"offset" is outside of buffer bounds')
}
if (array.byteLength < byteOffset + (length || 0)) {
throw new RangeError('"length" is outside of buffer bounds')
}
var buf
if (byteOffset === undefined && length === undefined) {
buf = new Uint8Array(array)
} else if (length === undefined) {
buf = new Uint8Array(array, byteOffset)
} else {
buf = new Uint8Array(array, byteOffset, length)
}
// Return an augmented `Uint8Array` instance
buf.__proto__ = Buffer.prototype
return buf
}
function fromObject (obj) {
if (Buffer.isBuffer(obj)) {
var len = checked(obj.length) | 0
var buf = createBuffer(len)
if (buf.length === 0) {
return buf
}
obj.copy(buf, 0, 0, len)
return buf
}
if (obj.length !== undefined) {
if (typeof obj.length !== 'number' || numberIsNaN(obj.length)) {
return createBuffer(0)
}
return fromArrayLike(obj)
}
if (obj.type === 'Buffer' && Array.isArray(obj.data)) {
return fromArrayLike(obj.data)
}
}
function checked (length) {
// Note: cannot use `length < K_MAX_LENGTH` here because that fails when
// length is NaN (which is otherwise coerced to zero.)
if (length >= K_MAX_LENGTH) {
throw new RangeError('Attempt to allocate Buffer larger than maximum ' +
'size: 0x' + K_MAX_LENGTH.toString(16) + ' bytes')
}
return length | 0
}
function SlowBuffer (length) {
if (+length != length) { // eslint-disable-line eqeqeq
length = 0
}
return Buffer.alloc(+length)
}
Buffer.isBuffer = function isBuffer (b) {
return b != null && b._isBuffer === true &&
b !== Buffer.prototype // so Buffer.isBuffer(Buffer.prototype) will be false
}
Buffer.compare = function compare (a, b) {
if (isInstance(a, Uint8Array)) a = Buffer.from(a, a.offset, a.byteLength)
if (isInstance(b, Uint8Array)) b = Buffer.from(b, b.offset, b.byteLength)
if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {
throw new TypeError(
'The "buf1", "buf2" arguments must be one of type Buffer or Uint8Array'
)
}
if (a === b) return 0
var x = a.length
var y = b.length
for (var i = 0, len = Math.min(x, y); i < len; ++i) {
if (a[i] !== b[i]) {
x = a[i]
y = b[i]
break
}
}
if (x < y) return -1
if (y < x) return 1
return 0
}
Buffer.isEncoding = function isEncoding (encoding) {
switch (String(encoding).toLowerCase()) {
case 'hex':
case 'utf8':
case 'utf-8':
case 'ascii':
case 'latin1':
case 'binary':
case 'base64':
case 'ucs2':
case 'ucs-2':
case 'utf16le':
case 'utf-16le':
return true
default:
return false
}
}
Buffer.concat = function concat (list, length) {
if (!Array.isArray(list)) {
throw new TypeError('"list" argument must be an Array of Buffers')
}
if (list.length === 0) {
return Buffer.alloc(0)
}
var i
if (length === undefined) {
length = 0
for (i = 0; i < list.length; ++i) {
length += list[i].length
}
}
var buffer = Buffer.allocUnsafe(length)
var pos = 0
for (i = 0; i < list.length; ++i) {
var buf = list[i]
if (isInstance(buf, Uint8Array)) {
buf = Buffer.from(buf)
}
if (!Buffer.isBuffer(buf)) {
throw new TypeError('"list" argument must be an Array of Buffers')
}
buf.copy(buffer, pos)
pos += buf.length
}
return buffer
}
function byteLength (string, encoding) {
if (Buffer.isBuffer(string)) {
return string.length
}
if (ArrayBuffer.isView(string) || isInstance(string, ArrayBuffer)) {
return string.byteLength
}
if (typeof string !== 'string') {
throw new TypeError(
'The "string" argument must be one of type string, Buffer, or ArrayBuffer. ' +
'Received type ' + typeof string
)
}
var len = string.length
var mustMatch = (arguments.length > 2 && arguments[2] === true)
if (!mustMatch && len === 0) return 0
// Use a for loop to avoid recursion
var loweredCase = false
for (;;) {
switch (encoding) {
case 'ascii':
case 'latin1':
case 'binary':
return len
case 'utf8':
case 'utf-8':
return utf8ToBytes(string).length
case 'ucs2':
case 'ucs-2':
case 'utf16le':
case 'utf-16le':
return len * 2
case 'hex':
return len >>> 1
case 'base64':
return base64ToBytes(string).length
default:
if (loweredCase) {
return mustMatch ? -1 : utf8ToBytes(string).length // assume utf8
}
encoding = ('' + encoding).toLowerCase()
loweredCase = true
}
}
}
Buffer.byteLength = byteLength
function slowToString (encoding, start, end) {
var loweredCase = false
// No need to verify that "this.length <= MAX_UINT32" since it's a read-only
// property of a typed array.
// This behaves neither like String nor Uint8Array in that we set start/end
// to their upper/lower bounds if the value passed is out of range.
// undefined is handled specially as per ECMA-262 6th Edition,
// Section 13.3.3.7 Runtime Semantics: KeyedBindingInitialization.
if (start === undefined || start < 0) {
start = 0
}
// Return early if start > this.length. Done here to prevent potential uint32
// coercion fail below.
if (start > this.length) {
return ''
}
if (end === undefined || end > this.length) {
end = this.length
}
if (end <= 0) {
return ''
}
// Force coersion to uint32. This will also coerce falsey/NaN values to 0.
end >>>= 0
start >>>= 0
if (end <= start) {
return ''
}
if (!encoding) encoding = 'utf8'
while (true) {
switch (encoding) {
case 'hex':
return hexSlice(this, start, end)
case 'utf8':
case 'utf-8':
return utf8Slice(this, start, end)
case 'ascii':
return asciiSlice(this, start, end)
case 'latin1':
case 'binary':
return latin1Slice(this, start, end)
case 'base64':
return base64Slice(this, start, end)
case 'ucs2':
case 'ucs-2':
case 'utf16le':
case 'utf-16le':
return utf16leSlice(this, start, end)
default:
if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
encoding = (encoding + '').toLowerCase()
loweredCase = true
}
}
}
// This property is used by `Buffer.isBuffer` (and the `is-buffer` npm package)
// to detect a Buffer instance. It's not possible to use `instanceof Buffer`
// reliably in a browserify context because there could be multiple different
// copies of the 'buffer' package in use. This method works even for Buffer
// instances that were created from another copy of the `buffer` package.
// See: https://github.com/feross/buffer/issues/154
Buffer.prototype._isBuffer = true
function swap (b, n, m) {
var i = b[n]
b[n] = b[m]
b[m] = i
}
Buffer.prototype.swap16 = function swap16 () {
var len = this.length
if (len % 2 !== 0) {
throw new RangeError('Buffer size must be a multiple of 16-bits')
}
for (var i = 0; i < len; i += 2) {
swap(this, i, i + 1)
}
return this
}
Buffer.prototype.swap32 = function swap32 () {
var len = this.length
if (len % 4 !== 0) {
throw new RangeError('Buffer size must be a multiple of 32-bits')
}
for (var i = 0; i < len; i += 4) {
swap(this, i, i + 3)
swap(this, i + 1, i + 2)
}
return this
}
Buffer.prototype.swap64 = function swap64 () {
var len = this.length
if (len % 8 !== 0) {
throw new RangeError('Buffer size must be a multiple of 64-bits')
}
for (var i = 0; i < len; i += 8) {
swap(this, i, i + 7)
swap(this, i + 1, i + 6)
swap(this, i + 2, i + 5)
swap(this, i + 3, i + 4)
}
return this
}
Buffer.prototype.toString = function toString () {
var length = this.length
if (length === 0) return ''
if (arguments.length === 0) return utf8Slice(this, 0, length)
return slowToString.apply(this, arguments)
}
Buffer.prototype.toLocaleString = Buffer.prototype.toString
Buffer.prototype.equals = function equals (b) {
if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer')
if (this === b) return true
return Buffer.compare(this, b) === 0
}
Buffer.prototype.inspect = function inspect () {
var str = ''
var max = exports.INSPECT_MAX_BYTES
str = this.toString('hex', 0, max).replace(/(.{2})/g, '$1 ').trim()
if (this.length > max) str += ' ... '
return '<Buffer ' + str + '>'
}
Buffer.prototype.compare = function compare (target, start, end, thisStart, thisEnd) {
if (isInstance(target, Uint8Array)) {
target = Buffer.from(target, target.offset, target.byteLength)
}
if (!Buffer.isBuffer(target)) {
throw new TypeError(
'The "target" argument must be one of type Buffer or Uint8Array. ' +
'Received type ' + (typeof target)
)
}
if (start === undefined) {
start = 0
}
if (end === undefined) {
end = target ? target.length : 0
}
if (thisStart === undefined) {
thisStart = 0
}
if (thisEnd === undefined) {
thisEnd = this.length
}
if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) {
throw new RangeError('out of range index')
}
if (thisStart >= thisEnd && start >= end) {
return 0
}
if (thisStart >= thisEnd) {
return -1
}
if (start >= end) {
return 1
}
start >>>= 0
end >>>= 0
thisStart >>>= 0
thisEnd >>>= 0
if (this === target) return 0
var x = thisEnd - thisStart
var y = end - start
var len = Math.min(x, y)
var thisCopy = this.slice(thisStart, thisEnd)
var targetCopy = target.slice(start, end)
for (var i = 0; i < len; ++i) {
if (thisCopy[i] !== targetCopy[i]) {
x = thisCopy[i]
y = targetCopy[i]
break
}
}
if (x < y) return -1
if (y < x) return 1
return 0
}
// Finds either the first index of `val` in `buffer` at offset >= `byteOffset`,
// OR the last index of `val` in `buffer` at offset <= `byteOffset`.
//
// Arguments:
// - buffer - a Buffer to search
// - val - a string, Buffer, or number
// - byteOffset - an index into `buffer`; will be clamped to an int32
// - encoding - an optional encoding, relevant is val is a string
// - dir - true for indexOf, false for lastIndexOf
function bidirectionalIndexOf (buffer, val, byteOffset, encoding, dir) {
// Empty buffer means no match
if (buffer.length === 0) return -1
// Normalize byteOffset
if (typeof byteOffset === 'string') {
encoding = byteOffset
byteOffset = 0
} else if (byteOffset > 0x7fffffff) {
byteOffset = 0x7fffffff
} else if (byteOffset < -0x80000000) {
byteOffset = -0x80000000
}
byteOffset = +byteOffset // Coerce to Number.
if (numberIsNaN(byteOffset)) {
// byteOffset: it it's undefined, null, NaN, "foo", etc, search whole buffer
byteOffset = dir ? 0 : (buffer.length - 1)
}
// Normalize byteOffset: negative offsets start from the end of the buffer
if (byteOffset < 0) byteOffset = buffer.length + byteOffset
if (byteOffset >= buffer.length) {
if (dir) return -1
else byteOffset = buffer.length - 1
} else if (byteOffset < 0) {
if (dir) byteOffset = 0
else return -1
}
// Normalize val
if (typeof val === 'string') {
val = Buffer.from(val, encoding)
}
// Finally, search either indexOf (if dir is true) or lastIndexOf
if (Buffer.isBuffer(val)) {
// Special case: looking for empty string/buffer always fails
if (val.length === 0) {
return -1
}
return arrayIndexOf(buffer, val, byteOffset, encoding, dir)
} else if (typeof val === 'number') {
val = val & 0xFF // Search for a byte value [0-255]
if (typeof Uint8Array.prototype.indexOf === 'function') {
if (dir) {
return Uint8Array.prototype.indexOf.call(buffer, val, byteOffset)
} else {
return Uint8Array.prototype.lastIndexOf.call(buffer, val, byteOffset)
}
}
return arrayIndexOf(buffer, [ val ], byteOffset, encoding, dir)
}
throw new TypeError('val must be string, number or Buffer')
}
function arrayIndexOf (arr, val, byteOffset, encoding, dir) {
var indexSize = 1
var arrLength = arr.length
var valLength = val.length
if (encoding !== undefined) {
encoding = String(encoding).toLowerCase()
if (encoding === 'ucs2' || encoding === 'ucs-2' ||
encoding === 'utf16le' || encoding === 'utf-16le') {
if (arr.length < 2 || val.length < 2) {
return -1
}
indexSize = 2
arrLength /= 2
valLength /= 2
byteOffset /= 2
}
}
function read (buf, i) {
if (indexSize === 1) {
return buf[i]
} else {
return buf.readUInt16BE(i * indexSize)
}
}
var i
if (dir) {
var foundIndex = -1
for (i = byteOffset; i < arrLength; i++) {
if (read(arr, i) === read(val, foundIndex === -1 ? 0 : i - foundIndex)) {
if (foundIndex === -1) foundIndex = i
if (i - foundIndex + 1 === valLength) return foundIndex * indexSize
} else {
if (foundIndex !== -1) i -= i - foundIndex
foundIndex = -1
}
}
} else {
if (byteOffset + valLength > arrLength) byteOffset = arrLength - valLength
for (i = byteOffset; i >= 0; i--) {
var found = true
for (var j = 0; j < valLength; j++) {
if (read(arr, i + j) !== read(val, j)) {
found = false
break
}
}
if (found) return i
}
}
return -1
}
Buffer.prototype.includes = function includes (val, byteOffset, encoding) {
return this.indexOf(val, byteOffset, encoding) !== -1
}
Buffer.prototype.indexOf = function indexOf (val, byteOffset, encoding) {
return bidirectionalIndexOf(this, val, byteOffset, encoding, true)
}
Buffer.prototype.lastIndexOf = function lastIndexOf (val, byteOffset, encoding) {
return bidirectionalIndexOf(this, val, byteOffset, encoding, false)
}
function hexWrite (buf, string, offset, length) {
offset = Number(offset) || 0
var remaining = buf.length - offset
if (!length) {
length = remaining
} else {
length = Number(length)
if (length > remaining) {
length = remaining
}
}
var strLen = string.length
if (length > strLen / 2) {
length = strLen / 2
}
for (var i = 0; i < length; ++i) {
var parsed = parseInt(string.substr(i * 2, 2), 16)
if (numberIsNaN(parsed)) return i
buf[offset + i] = parsed
}
return i
}
function utf8Write (buf, string, offset, length) {
return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length)
}
function asciiWrite (buf, string, offset, length) {
return blitBuffer(asciiToBytes(string), buf, offset, length)
}
function latin1Write (buf, string, offset, length) {
return asciiWrite(buf, string, offset, length)
}
function base64Write (buf, string, offset, length) {
return blitBuffer(base64ToBytes(string), buf, offset, length)
}
function ucs2Write (buf, string, offset, length) {
return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length)
}
Buffer.prototype.write = function write (string, offset, length, encoding) {
// Buffer#write(string)
if (offset === undefined) {
encoding = 'utf8'
length = this.length
offset = 0
// Buffer#write(string, encoding)
} else if (length === undefined && typeof offset === 'string') {
encoding = offset
length = this.length
offset = 0
// Buffer#write(string, offset[, length][, encoding])
} else if (isFinite(offset)) {
offset = offset >>> 0
if (isFinite(length)) {
length = length >>> 0
if (encoding === undefined) encoding = 'utf8'
} else {
encoding = length
length = undefined
}
} else {
throw new Error(
'Buffer.write(string, encoding, offset[, length]) is no longer supported'
)
}
var remaining = this.length - offset
if (length === undefined || length > remaining) length = remaining
if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) {
throw new RangeError('Attempt to write outside buffer bounds')
}
if (!encoding) encoding = 'utf8'
var loweredCase = false
for (;;) {
switch (encoding) {
case 'hex':
return hexWrite(this, string, offset, length)
case 'utf8':
case 'utf-8':
return utf8Write(this, string, offset, length)
case 'ascii':
return asciiWrite(this, string, offset, length)
case 'latin1':
case 'binary':
return latin1Write(this, string, offset, length)
case 'base64':
// Warning: maxLength not taken into account in base64Write
return base64Write(this, string, offset, length)
case 'ucs2':
case 'ucs-2':
case 'utf16le':
case 'utf-16le':
return ucs2Write(this, string, offset, length)
default:
if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
encoding = ('' + encoding).toLowerCase()
loweredCase = true
}
}
}
Buffer.prototype.toJSON = function toJSON () {
return {
type: 'Buffer',
data: Array.prototype.slice.call(this._arr || this, 0)
}
}
function base64Slice (buf, start, end) {
if (start === 0 && end === buf.length) {
return base64.fromByteArray(buf)
} else {
return base64.fromByteArray(buf.slice(start, end))
}
}
function utf8Slice (buf, start, end) {
end = Math.min(buf.length, end)
var res = []
var i = start
while (i < end) {
var firstByte = buf[i]
var codePoint = null
var bytesPerSequence = (firstByte > 0xEF) ? 4
: (firstByte > 0xDF) ? 3
: (firstByte > 0xBF) ? 2
: 1
if (i + bytesPerSequence <= end) {
var secondByte, thirdByte, fourthByte, tempCodePoint
switch (bytesPerSequence) {
case 1:
if (firstByte < 0x80) {
codePoint = firstByte
}
break
case 2:
secondByte = buf[i + 1]
if ((secondByte & 0xC0) === 0x80) {
tempCodePoint = (firstByte & 0x1F) << 0x6 | (secondByte & 0x3F)
if (tempCodePoint > 0x7F) {
codePoint = tempCodePoint
}
}
break
case 3:
secondByte = buf[i + 1]
thirdByte = buf[i + 2]
if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) {
tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | (thirdByte & 0x3F)
if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) {
codePoint = tempCodePoint
}
}
break
case 4:
secondByte = buf[i + 1]
thirdByte = buf[i + 2]
fourthByte = buf[i + 3]
if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) {
tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | (fourthByte & 0x3F)
if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) {
codePoint = tempCodePoint
}
}
}
}
if (codePoint === null) {
// we did not generate a valid codePoint so insert a
// replacement char (U+FFFD) and advance only 1 byte
codePoint = 0xFFFD
bytesPerSequence = 1
} else if (codePoint > 0xFFFF) {
// encode to utf16 (surrogate pair dance)
codePoint -= 0x10000
res.push(codePoint >>> 10 & 0x3FF | 0xD800)
codePoint = 0xDC00 | codePoint & 0x3FF
}
res.push(codePoint)
i += bytesPerSequence
}
return decodeCodePointsArray(res)
}
// Based on http://stackoverflow.com/a/22747272/680742, the browser with
// the lowest limit is Chrome, with 0x10000 args.
// We go 1 magnitude less, for safety
var MAX_ARGUMENTS_LENGTH = 0x1000
function decodeCodePointsArray (codePoints) {
var len = codePoints.length
if (len <= MAX_ARGUMENTS_LENGTH) {
return String.fromCharCode.apply(String, codePoints) // avoid extra slice()
}
// Decode in chunks to avoid "call stack size exceeded".
var res = ''
var i = 0
while (i < len) {
res += String.fromCharCode.apply(
String,
codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH)
)
}
return res
}
function asciiSlice (buf, start, end) {
var ret = ''
end = Math.min(buf.length, end)
for (var i = start; i < end; ++i) {
ret += String.fromCharCode(buf[i] & 0x7F)
}
return ret
}
function latin1Slice (buf, start, end) {
var ret = ''
end = Math.min(buf.length, end)
for (var i = start; i < end; ++i) {
ret += String.fromCharCode(buf[i])
}
return ret
}
function hexSlice (buf, start, end) {
var len = buf.length
if (!start || start < 0) start = 0
if (!end || end < 0 || end > len) end = len
var out = ''
for (var i = start; i < end; ++i) {
out += toHex(buf[i])
}
return out
}
function utf16leSlice (buf, start, end) {
var bytes = buf.slice(start, end)
var res = ''
for (var i = 0; i < bytes.length; i += 2) {
res += String.fromCharCode(bytes[i] + (bytes[i + 1] * 256))
}
return res
}
Buffer.prototype.slice = function slice (start, end) {
var len = this.length
start = ~~start
end = end === undefined ? len : ~~end
if (start < 0) {
start += len
if (start < 0) start = 0
} else if (start > len) {
start = len
}
if (end < 0) {
end += len
if (end < 0) end = 0
} else if (end > len) {
end = len
}
if (end < start) end = start
var newBuf = this.subarray(start, end)
// Return an augmented `Uint8Array` instance
newBuf.__proto__ = Buffer.prototype
return newBuf
}
/*
* Need to make sure that buffer isn't trying to write out of bounds.
*/
function checkOffset (offset, ext, length) {
if ((offset % 1) !== 0 || offset < 0) throw new RangeError('offset is not uint')
if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length')
}
Buffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) {
offset = offset >>> 0
byteLength = byteLength >>> 0
if (!noAssert) checkOffset(offset, byteLength, this.length)
var val = this[offset]
var mul = 1
var i = 0
while (++i < byteLength && (mul *= 0x100)) {
val += this[offset + i] * mul
}
return val
}
Buffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) {
offset = offset >>> 0
byteLength = byteLength >>> 0
if (!noAssert) {
checkOffset(offset, byteLength, this.length)
}
var val = this[offset + --byteLength]
var mul = 1
while (byteLength > 0 && (mul *= 0x100)) {
val += this[offset + --byteLength] * mul
}
return val
}
Buffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) {
offset = offset >>> 0
if (!noAssert) checkOffset(offset, 1, this.length)
return this[offset]
}
Buffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) {
offset = offset >>> 0
if (!noAssert) checkOffset(offset, 2, this.length)
return this[offset] | (this[offset + 1] << 8)
}
Buffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) {
offset = offset >>> 0
if (!noAssert) checkOffset(offset, 2, this.length)
return (this[offset] << 8) | this[offset + 1]
}
Buffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) {
offset = offset >>> 0
if (!noAssert) checkOffset(offset, 4, this.length)
return ((this[offset]) |
(this[offset + 1] << 8) |
(this[offset + 2] << 16)) +
(this[offset + 3] * 0x1000000)
}
Buffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) {
offset = offset >>> 0
if (!noAssert) checkOffset(offset, 4, this.length)
return (this[offset] * 0x1000000) +
((this[offset + 1] << 16) |
(this[offset + 2] << 8) |
this[offset + 3])
}
Buffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) {
offset = offset >>> 0
byteLength = byteLength >>> 0
if (!noAssert) checkOffset(offset, byteLength, this.length)
var val = this[offset]
var mul = 1
var i = 0
while (++i < byteLength && (mul *= 0x100)) {
val += this[offset + i] * mul
}
mul *= 0x80
if (val >= mul) val -= Math.pow(2, 8 * byteLength)
return val
}
Buffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) {
offset = offset >>> 0
byteLength = byteLength >>> 0
if (!noAssert) checkOffset(offset, byteLength, this.length)
var i = byteLength
var mul = 1
var val = this[offset + --i]
while (i > 0 && (mul *= 0x100)) {
val += this[offset + --i] * mul
}
mul *= 0x80
if (val >= mul) val -= Math.pow(2, 8 * byteLength)
return val
}
Buffer.prototype.readInt8 = function readInt8 (offset, noAssert) {
offset = offset >>> 0
if (!noAssert) checkOffset(offset, 1, this.length)
if (!(this[offset] & 0x80)) return (this[offset])
return ((0xff - this[offset] + 1) * -1)
}
Buffer.prototype.readInt16LE = function readInt16LE (offset, noAssert) {
offset = offset >>> 0
if (!noAssert) checkOffset(offset, 2, this.length)
var val = this[offset] | (this[offset + 1] << 8)
return (val & 0x8000) ? val | 0xFFFF0000 : val
}
Buffer.prototype.readInt16BE = function readInt16BE (offset, noAssert) {
offset = offset >>> 0
if (!noAssert) checkOffset(offset, 2, this.length)
var val = this[offset + 1] | (this[offset] << 8)
return (val & 0x8000) ? val | 0xFFFF0000 : val
}
Buffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) {
offset = offset >>> 0
if (!noAssert) checkOffset(offset, 4, this.length)
return (this[offset]) |
(this[offset + 1] << 8) |
(this[offset + 2] << 16) |
(this[offset + 3] << 24)
}
Buffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) {
offset = offset >>> 0
if (!noAssert) checkOffset(offset, 4, this.length)
return (this[offset] << 24) |
(this[offset + 1] << 16) |
(this[offset + 2] << 8) |
(this[offset + 3])
}
Buffer.prototype.readFloatLE = function readFloatLE (offset, noAssert) {
offset = offset >>> 0
if (!noAssert) checkOffset(offset, 4, this.length)
return ieee754.read(this, offset, true, 23, 4)
}
Buffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) {
offset = offset >>> 0
if (!noAssert) checkOffset(offset, 4, this.length)
return ieee754.read(this, offset, false, 23, 4)
}
Buffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) {
offset = offset >>> 0
if (!noAssert) checkOffset(offset, 8, this.length)
return ieee754.read(this, offset, true, 52, 8)
}
Buffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) {
offset = offset >>> 0
if (!noAssert) checkOffset(offset, 8, this.length)
return ieee754.read(this, offset, false, 52, 8)
}
function checkInt (buf, value, offset, ext, max, min) {
if (!Buffer.isBuffer(buf)) throw new TypeError('"buffer" argument must be a Buffer instance')
if (value > max || value < min) throw new RangeError('"value" argument is out of bounds')
if (offset + ext > buf.length) throw new RangeError('Index out of range')
}
Buffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) {
value = +value
offset = offset >>> 0
byteLength = byteLength >>> 0
if (!noAssert) {
var maxBytes = Math.pow(2, 8 * byteLength) - 1
checkInt(this, value, offset, byteLength, maxBytes, 0)
}
var mul = 1
var i = 0
this[offset] = value & 0xFF
while (++i < byteLength && (mul *= 0x100)) {
this[offset + i] = (value / mul) & 0xFF
}
return offset + byteLength
}
Buffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength, noAssert) {
value = +value
offset = offset >>> 0
byteLength = byteLength >>> 0
if (!noAssert) {
var maxBytes = Math.pow(2, 8 * byteLength) - 1
checkInt(this, value, offset, byteLength, maxBytes, 0)
}
var i = byteLength - 1
var mul = 1
this[offset + i] = value & 0xFF
while (--i >= 0 && (mul *= 0x100)) {
this[offset + i] = (value / mul) & 0xFF
}
return offset + byteLength
}
Buffer.prototype.writeUInt8 = function writeUInt8 (value, offset, noAssert) {
value = +value
offset = offset >>> 0
if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0)
this[offset] = (value & 0xff)
return offset + 1
}
Buffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert) {
value = +value
offset = offset >>> 0
if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
this[offset] = (value & 0xff)
this[offset + 1] = (value >>> 8)
return offset + 2
}
Buffer.prototype.writeUInt16BE = function writeUInt16BE (value, offset, noAssert) {
value = +value
offset = offset >>> 0
if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
this[offset] = (value >>> 8)
this[offset + 1] = (value & 0xff)
return offset + 2
}
Buffer.prototype.writeUInt32LE = function writeUInt32LE (value, offset, noAssert) {
value = +value
offset = offset >>> 0
if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
this[offset + 3] = (value >>> 24)
this[offset + 2] = (value >>> 16)
this[offset + 1] = (value >>> 8)
this[offset] = (value & 0xff)
return offset + 4
}
Buffer.prototype.writeUInt32BE = function writeUInt32BE (value, offset, noAssert) {
value = +value
offset = offset >>> 0
if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
this[offset] = (value >>> 24)
this[offset + 1] = (value >>> 16)
this[offset + 2] = (value >>> 8)
this[offset + 3] = (value & 0xff)
return offset + 4
}
Buffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) {
value = +value
offset = offset >>> 0
if (!noAssert) {
var limit = Math.pow(2, (8 * byteLength) - 1)
checkInt(this, value, offset, byteLength, limit - 1, -limit)
}
var i = 0
var mul = 1
var sub = 0
this[offset] = value & 0xFF
while (++i < byteLength && (mul *= 0x100)) {
if (value < 0 && sub === 0 && this[offset + i - 1] !== 0) {
sub = 1
}
this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
}
return offset + byteLength
}
Buffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, noAssert) {
value = +value
offset = offset >>> 0
if (!noAssert) {
var limit = Math.pow(2, (8 * byteLength) - 1)
checkInt(this, value, offset, byteLength, limit - 1, -limit)
}
var i = byteLength - 1
var mul = 1
var sub = 0
this[offset + i] = value & 0xFF
while (--i >= 0 && (mul *= 0x100)) {
if (value < 0 && sub === 0 && this[offset + i + 1] !== 0) {
sub = 1
}
this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
}
return offset + byteLength
}
Buffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) {
value = +value
offset = offset >>> 0
if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80)
if (value < 0) value = 0xff + value + 1
this[offset] = (value & 0xff)
return offset + 1
}
Buffer.prototype.writeInt16LE = function writeInt16LE (value, offset, noAssert) {
value = +value
offset = offset >>> 0
if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
this[offset] = (value & 0xff)
this[offset + 1] = (value >>> 8)
return offset + 2
}
Buffer.prototype.writeInt16BE = function writeInt16BE (value, offset, noAssert) {
value = +value
offset = offset >>> 0
if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
this[offset] = (value >>> 8)
this[offset + 1] = (value & 0xff)
return offset + 2
}
Buffer.prototype.writeInt32LE = function writeInt32LE (value, offset, noAssert) {
value = +value
offset = offset >>> 0
if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
this[offset] = (value & 0xff)
this[offset + 1] = (value >>> 8)
this[offset + 2] = (value >>> 16)
this[offset + 3] = (value >>> 24)
return offset + 4
}
Buffer.prototype.writeInt32BE = function writeInt32BE (value, offset, noAssert) {
value = +value
offset = offset >>> 0
if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
if (value < 0) value = 0xffffffff + value + 1
this[offset] = (value >>> 24)
this[offset + 1] = (value >>> 16)
this[offset + 2] = (value >>> 8)
this[offset + 3] = (value & 0xff)
return offset + 4
}
function checkIEEE754 (buf, value, offset, ext, max, min) {
if (offset + ext > buf.length) throw new RangeError('Index out of range')
if (offset < 0) throw new RangeError('Index out of range')
}
function writeFloat (buf, value, offset, littleEndian, noAssert) {
value = +value
offset = offset >>> 0
if (!noAssert) {
checkIEEE754(buf, value, offset, 4, 3.4028234663852886e+38, -3.4028234663852886e+38)
}
ieee754.write(buf, value, offset, littleEndian, 23, 4)
return offset + 4
}
Buffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) {
return writeFloat(this, value, offset, true, noAssert)
}
Buffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert) {
return writeFloat(this, value, offset, false, noAssert)
}
function writeDouble (buf, value, offset, littleEndian, noAssert) {
value = +value
offset = offset >>> 0
if (!noAssert) {
checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308)
}
ieee754.write(buf, value, offset, littleEndian, 52, 8)
return offset + 8
}
Buffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) {
return writeDouble(this, value, offset, true, noAssert)
}
Buffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) {
return writeDouble(this, value, offset, false, noAssert)
}
// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)
Buffer.prototype.copy = function copy (target, targetStart, start, end) {
if (!Buffer.isBuffer(target)) throw new TypeError('argument should be a Buffer')
if (!start) start = 0
if (!end && end !== 0) end = this.length
if (targetStart >= target.length) targetStart = target.length
if (!targetStart) targetStart = 0
if (end > 0 && end < start) end = start
// Copy 0 bytes; we're done
if (end === start) return 0
if (target.length === 0 || this.length === 0) return 0
// Fatal error conditions
if (targetStart < 0) {
throw new RangeError('targetStart out of bounds')
}
if (start < 0 || start >= this.length) throw new RangeError('Index out of range')
if (end < 0) throw new RangeError('sourceEnd out of bounds')
// Are we oob?
if (end > this.length) end = this.length
if (target.length - targetStart < end - start) {
end = target.length - targetStart + start
}
var len = end - start
if (this === target && typeof Uint8Array.prototype.copyWithin === 'function') {
// Use built-in when available, missing from IE11
this.copyWithin(targetStart, start, end)
} else if (this === target && start < targetStart && targetStart < end) {
// descending copy from end
for (var i = len - 1; i >= 0; --i) {
target[i + targetStart] = this[i + start]
}
} else {
Uint8Array.prototype.set.call(
target,
this.subarray(start, end),
targetStart
)
}
return len
}
// Usage:
// buffer.fill(number[, offset[, end]])
// buffer.fill(buffer[, offset[, end]])
// buffer.fill(string[, offset[, end]][, encoding])
Buffer.prototype.fill = function fill (val, start, end, encoding) {
// Handle string cases:
if (typeof val === 'string') {
if (typeof start === 'string') {
encoding = start
start = 0
end = this.length
} else if (typeof end === 'string') {
encoding = end
end = this.length
}
if (encoding !== undefined && typeof encoding !== 'string') {
throw new TypeError('encoding must be a string')
}
if (typeof encoding === 'string' && !Buffer.isEncoding(encoding)) {
throw new TypeError('Unknown encoding: ' + encoding)
}
if (val.length === 1) {
var code = val.charCodeAt(0)
if ((encoding === 'utf8' && code < 128) ||
encoding === 'latin1') {
// Fast path: If `val` fits into a single byte, use that numeric value.
val = code
}
}
} else if (typeof val === 'number') {
val = val & 255
}
// Invalid ranges are not set to a default, so can range check early.
if (start < 0 || this.length < start || this.length < end) {
throw new RangeError('Out of range index')
}
if (end <= start) {
return this
}
start = start >>> 0
end = end === undefined ? this.length : end >>> 0
if (!val) val = 0
var i
if (typeof val === 'number') {
for (i = start; i < end; ++i) {
this[i] = val
}
} else {
var bytes = Buffer.isBuffer(val)
? val
: Buffer.from(val, encoding)
var len = bytes.length
if (len === 0) {
throw new TypeError('The value "' + val +
'" is invalid for argument "value"')
}
for (i = 0; i < end - start; ++i) {
this[i + start] = bytes[i % len]
}
}
return this
}
// HELPER FUNCTIONS
// ================
var INVALID_BASE64_RE = /[^+/0-9A-Za-z-_]/g
function base64clean (str) {
// Node takes equal signs as end of the Base64 encoding
str = str.split('=')[0]
// Node strips out invalid characters like \n and \t from the string, base64-js does not
str = str.trim().replace(INVALID_BASE64_RE, '')
// Node converts strings with length < 2 to ''
if (str.length < 2) return ''
// Node allows for non-padded base64 strings (missing trailing ===), base64-js does not
while (str.length % 4 !== 0) {
str = str + '='
}
return str
}
function toHex (n) {
if (n < 16) return '0' + n.toString(16)
return n.toString(16)
}
function utf8ToBytes (string, units) {
units = units || Infinity
var codePoint
var length = string.length
var leadSurrogate = null
var bytes = []
for (var i = 0; i < length; ++i) {
codePoint = string.charCodeAt(i)
// is surrogate component
if (codePoint > 0xD7FF && codePoint < 0xE000) {
// last char was a lead
if (!leadSurrogate) {
// no lead yet
if (codePoint > 0xDBFF) {
// unexpected trail
if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
continue
} else if (i + 1 === length) {
// unpaired lead
if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
continue
}
// valid lead
leadSurrogate = codePoint
continue
}
// 2 leads in a row
if (codePoint < 0xDC00) {
if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
leadSurrogate = codePoint
continue
}
// valid surrogate pair
codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000
} else if (leadSurrogate) {
// valid bmp char, but last char was a lead
if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
}
leadSurrogate = null
// encode utf8
if (codePoint < 0x80) {
if ((units -= 1) < 0) break
bytes.push(codePoint)
} else if (codePoint < 0x800) {
if ((units -= 2) < 0) break
bytes.push(
codePoint >> 0x6 | 0xC0,
codePoint & 0x3F | 0x80
)
} else if (codePoint < 0x10000) {
if ((units -= 3) < 0) break
bytes.push(
codePoint >> 0xC | 0xE0,
codePoint >> 0x6 & 0x3F | 0x80,
codePoint & 0x3F | 0x80
)
} else if (codePoint < 0x110000) {
if ((units -= 4) < 0) break
bytes.push(
codePoint >> 0x12 | 0xF0,
codePoint >> 0xC & 0x3F | 0x80,
codePoint >> 0x6 & 0x3F | 0x80,
codePoint & 0x3F | 0x80
)
} else {
throw new Error('Invalid code point')
}
}
return bytes
}
function asciiToBytes (str) {
var byteArray = []
for (var i = 0; i < str.length; ++i) {
// Node's code seems to be doing this and not & 0x7F..
byteArray.push(str.charCodeAt(i) & 0xFF)
}
return byteArray
}
function utf16leToBytes (str, units) {
var c, hi, lo
var byteArray = []
for (var i = 0; i < str.length; ++i) {
if ((units -= 2) < 0) break
c = str.charCodeAt(i)
hi = c >> 8
lo = c % 256
byteArray.push(lo)
byteArray.push(hi)
}
return byteArray
}
function base64ToBytes (str) {
return base64.toByteArray(base64clean(str))
}
function blitBuffer (src, dst, offset, length) {
for (var i = 0; i < length; ++i) {
if ((i + offset >= dst.length) || (i >= src.length)) break
dst[i + offset] = src[i]
}
return i
}
// ArrayBuffer or Uint8Array objects from other contexts (i.e. iframes) do not pass
// the `instanceof` check but they should be treated as of that type.
// See: https://github.com/feross/buffer/issues/166
function isInstance (obj, type) {
return obj instanceof type ||
(obj != null && obj.constructor != null && obj.constructor.name != null &&
obj.constructor.name === type.name)
}
function numberIsNaN (obj) {
// For IE11 support
return obj !== obj // eslint-disable-line no-self-compare
}
}).call(this)}).call(this,require("buffer").Buffer)
},{"base64-js":16,"buffer":18,"ieee754":20}],19:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
'use strict';
var R = typeof Reflect === 'object' ? Reflect : null
var ReflectApply = R && typeof R.apply === 'function'
? R.apply
: function ReflectApply(target, receiver, args) {
return Function.prototype.apply.call(target, receiver, args);
}
var ReflectOwnKeys
if (R && typeof R.ownKeys === 'function') {
ReflectOwnKeys = R.ownKeys
} else if (Object.getOwnPropertySymbols) {
ReflectOwnKeys = function ReflectOwnKeys(target) {
return Object.getOwnPropertyNames(target)
.concat(Object.getOwnPropertySymbols(target));
};
} else {
ReflectOwnKeys = function ReflectOwnKeys(target) {
return Object.getOwnPropertyNames(target);
};
}
function ProcessEmitWarning(warning) {
if (console && console.warn) console.warn(warning);
}
var NumberIsNaN = Number.isNaN || function NumberIsNaN(value) {
return value !== value;
}
function EventEmitter() {
EventEmitter.init.call(this);
}
module.exports = EventEmitter;
module.exports.once = once;
// Backwards-compat with node 0.10.x
EventEmitter.EventEmitter = EventEmitter;
EventEmitter.prototype._events = undefined;
EventEmitter.prototype._eventsCount = 0;
EventEmitter.prototype._maxListeners = undefined;
// By default EventEmitters will print a warning if more than 10 listeners are
// added to it. This is a useful default which helps finding memory leaks.
var defaultMaxListeners = 10;
function checkListener(listener) {
if (typeof listener !== 'function') {
throw new TypeError('The "listener" argument must be of type Function. Received type ' + typeof listener);
}
}
Object.defineProperty(EventEmitter, 'defaultMaxListeners', {
enumerable: true,
get: function() {
return defaultMaxListeners;
},
set: function(arg) {
if (typeof arg !== 'number' || arg < 0 || NumberIsNaN(arg)) {
throw new RangeError('The value of "defaultMaxListeners" is out of range. It must be a non-negative number. Received ' + arg + '.');
}
defaultMaxListeners = arg;
}
});
EventEmitter.init = function() {
if (this._events === undefined ||
this._events === Object.getPrototypeOf(this)._events) {
this._events = Object.create(null);
this._eventsCount = 0;
}
this._maxListeners = this._maxListeners || undefined;
};
// Obviously not all Emitters should be limited to 10. This function allows
// that to be increased. Set to zero for unlimited.
EventEmitter.prototype.setMaxListeners = function setMaxListeners(n) {
if (typeof n !== 'number' || n < 0 || NumberIsNaN(n)) {
throw new RangeError('The value of "n" is out of range. It must be a non-negative number. Received ' + n + '.');
}
this._maxListeners = n;
return this;
};
function _getMaxListeners(that) {
if (that._maxListeners === undefined)
return EventEmitter.defaultMaxListeners;
return that._maxListeners;
}
EventEmitter.prototype.getMaxListeners = function getMaxListeners() {
return _getMaxListeners(this);
};
EventEmitter.prototype.emit = function emit(type) {
var args = [];
for (var i = 1; i < arguments.length; i++) args.push(arguments[i]);
var doError = (type === 'error');
var events = this._events;
if (events !== undefined)
doError = (doError && events.error === undefined);
else if (!doError)
return false;
// If there is no 'error' event listener then throw.
if (doError) {
var er;
if (args.length > 0)
er = args[0];
if (er instanceof Error) {
// Note: The comments on the `throw` lines are intentional, they show
// up in Node's output if this results in an unhandled exception.
throw er; // Unhandled 'error' event
}
// At least give some kind of context to the user
var err = new Error('Unhandled error.' + (er ? ' (' + er.message + ')' : ''));
err.context = er;
throw err; // Unhandled 'error' event
}
var handler = events[type];
if (handler === undefined)
return false;
if (typeof handler === 'function') {
ReflectApply(handler, this, args);
} else {
var len = handler.length;
var listeners = arrayClone(handler, len);
for (var i = 0; i < len; ++i)
ReflectApply(listeners[i], this, args);
}
return true;
};
function _addListener(target, type, listener, prepend) {
var m;
var events;
var existing;
checkListener(listener);
events = target._events;
if (events === undefined) {
events = target._events = Object.create(null);
target._eventsCount = 0;
} else {
// To avoid recursion in the case that type === "newListener"! Before
// adding it to the listeners, first emit "newListener".
if (events.newListener !== undefined) {
target.emit('newListener', type,
listener.listener ? listener.listener : listener);
// Re-assign `events` because a newListener handler could have caused the
// this._events to be assigned to a new object
events = target._events;
}
existing = events[type];
}
if (existing === undefined) {
// Optimize the case of one listener. Don't need the extra array object.
existing = events[type] = listener;
++target._eventsCount;
} else {
if (typeof existing === 'function') {
// Adding the second element, need to change to array.
existing = events[type] =
prepend ? [listener, existing] : [existing, listener];
// If we've already got an array, just append.
} else if (prepend) {
existing.unshift(listener);
} else {
existing.push(listener);
}
// Check for listener leak
m = _getMaxListeners(target);
if (m > 0 && existing.length > m && !existing.warned) {
existing.warned = true;
// No error code for this since it is a Warning
// eslint-disable-next-line no-restricted-syntax
var w = new Error('Possible EventEmitter memory leak detected. ' +
existing.length + ' ' + String(type) + ' listeners ' +
'added. Use emitter.setMaxListeners() to ' +
'increase limit');
w.name = 'MaxListenersExceededWarning';
w.emitter = target;
w.type = type;
w.count = existing.length;
ProcessEmitWarning(w);
}
}
return target;
}
EventEmitter.prototype.addListener = function addListener(type, listener) {
return _addListener(this, type, listener, false);
};
EventEmitter.prototype.on = EventEmitter.prototype.addListener;
EventEmitter.prototype.prependListener =
function prependListener(type, listener) {
return _addListener(this, type, listener, true);
};
function onceWrapper() {
if (!this.fired) {
this.target.removeListener(this.type, this.wrapFn);
this.fired = true;
if (arguments.length === 0)
return this.listener.call(this.target);
return this.listener.apply(this.target, arguments);
}
}
function _onceWrap(target, type, listener) {
var state = { fired: false, wrapFn: undefined, target: target, type: type, listener: listener };
var wrapped = onceWrapper.bind(state);
wrapped.listener = listener;
state.wrapFn = wrapped;
return wrapped;
}
EventEmitter.prototype.once = function once(type, listener) {
checkListener(listener);
this.on(type, _onceWrap(this, type, listener));
return this;
};
EventEmitter.prototype.prependOnceListener =
function prependOnceListener(type, listener) {
checkListener(listener);
this.prependListener(type, _onceWrap(this, type, listener));
return this;
};
// Emits a 'removeListener' event if and only if the listener was removed.
EventEmitter.prototype.removeListener =
function removeListener(type, listener) {
var list, events, position, i, originalListener;
checkListener(listener);
events = this._events;
if (events === undefined)
return this;
list = events[type];
if (list === undefined)
return this;
if (list === listener || list.listener === listener) {
if (--this._eventsCount === 0)
this._events = Object.create(null);
else {
delete events[type];
if (events.removeListener)
this.emit('removeListener', type, list.listener || listener);
}
} else if (typeof list !== 'function') {
position = -1;
for (i = list.length - 1; i >= 0; i--) {
if (list[i] === listener || list[i].listener === listener) {
originalListener = list[i].listener;
position = i;
break;
}
}
if (position < 0)
return this;
if (position === 0)
list.shift();
else {
spliceOne(list, position);
}
if (list.length === 1)
events[type] = list[0];
if (events.removeListener !== undefined)
this.emit('removeListener', type, originalListener || listener);
}
return this;
};
EventEmitter.prototype.off = EventEmitter.prototype.removeListener;
EventEmitter.prototype.removeAllListeners =
function removeAllListeners(type) {
var listeners, events, i;
events = this._events;
if (events === undefined)
return this;
// not listening for removeListener, no need to emit
if (events.removeListener === undefined) {
if (arguments.length === 0) {
this._events = Object.create(null);
this._eventsCount = 0;
} else if (events[type] !== undefined) {
if (--this._eventsCount === 0)
this._events = Object.create(null);
else
delete events[type];
}
return this;
}
// emit removeListener for all listeners on all events
if (arguments.length === 0) {
var keys = Object.keys(events);
var key;
for (i = 0; i < keys.length; ++i) {
key = keys[i];
if (key === 'removeListener') continue;
this.removeAllListeners(key);
}
this.removeAllListeners('removeListener');
this._events = Object.create(null);
this._eventsCount = 0;
return this;
}
listeners = events[type];
if (typeof listeners === 'function') {
this.removeListener(type, listeners);
} else if (listeners !== undefined) {
// LIFO order
for (i = listeners.length - 1; i >= 0; i--) {
this.removeListener(type, listeners[i]);
}
}
return this;
};
function _listeners(target, type, unwrap) {
var events = target._events;
if (events === undefined)
return [];
var evlistener = events[type];
if (evlistener === undefined)
return [];
if (typeof evlistener === 'function')
return unwrap ? [evlistener.listener || evlistener] : [evlistener];
return unwrap ?
unwrapListeners(evlistener) : arrayClone(evlistener, evlistener.length);
}
EventEmitter.prototype.listeners = function listeners(type) {
return _listeners(this, type, true);
};
EventEmitter.prototype.rawListeners = function rawListeners(type) {
return _listeners(this, type, false);
};
EventEmitter.listenerCount = function(emitter, type) {
if (typeof emitter.listenerCount === 'function') {
return emitter.listenerCount(type);
} else {
return listenerCount.call(emitter, type);
}
};
EventEmitter.prototype.listenerCount = listenerCount;
function listenerCount(type) {
var events = this._events;
if (events !== undefined) {
var evlistener = events[type];
if (typeof evlistener === 'function') {
return 1;
} else if (evlistener !== undefined) {
return evlistener.length;
}
}
return 0;
}
EventEmitter.prototype.eventNames = function eventNames() {
return this._eventsCount > 0 ? ReflectOwnKeys(this._events) : [];
};
function arrayClone(arr, n) {
var copy = new Array(n);
for (var i = 0; i < n; ++i)
copy[i] = arr[i];
return copy;
}
function spliceOne(list, index) {
for (; index + 1 < list.length; index++)
list[index] = list[index + 1];
list.pop();
}
function unwrapListeners(arr) {
var ret = new Array(arr.length);
for (var i = 0; i < ret.length; ++i) {
ret[i] = arr[i].listener || arr[i];
}
return ret;
}
function once(emitter, name) {
return new Promise(function (resolve, reject) {
function errorListener(err) {
emitter.removeListener(name, resolver);
reject(err);
}
function resolver() {
if (typeof emitter.removeListener === 'function') {
emitter.removeListener('error', errorListener);
}
resolve([].slice.call(arguments));
};
eventTargetAgnosticAddListener(emitter, name, resolver, { once: true });
if (name !== 'error') {
addErrorHandlerIfEventEmitter(emitter, errorListener, { once: true });
}
});
}
function addErrorHandlerIfEventEmitter(emitter, handler, flags) {
if (typeof emitter.on === 'function') {
eventTargetAgnosticAddListener(emitter, 'error', handler, flags);
}
}
function eventTargetAgnosticAddListener(emitter, name, listener, flags) {
if (typeof emitter.on === 'function') {
if (flags.once) {
emitter.once(name, listener);
} else {
emitter.on(name, listener);
}
} else if (typeof emitter.addEventListener === 'function') {
// EventTarget does not have `error` event semantics like Node
// EventEmitters, we do not listen for `error` events here.
emitter.addEventListener(name, function wrapListener(arg) {
// IE does not have builtin `{ once: true }` support so we
// have to do it manually.
if (flags.once) {
emitter.removeEventListener(name, wrapListener);
}
listener(arg);
});
} else {
throw new TypeError('The "emitter" argument must be of type EventEmitter. Received type ' + typeof emitter);
}
}
},{}],20:[function(require,module,exports){
/*! ieee754. BSD-3-Clause License. Feross Aboukhadijeh <https://feross.org/opensource> */
exports.read = function (buffer, offset, isLE, mLen, nBytes) {
var e, m
var eLen = (nBytes * 8) - mLen - 1
var eMax = (1 << eLen) - 1
var eBias = eMax >> 1
var nBits = -7
var i = isLE ? (nBytes - 1) : 0
var d = isLE ? -1 : 1
var s = buffer[offset + i]
i += d
e = s & ((1 << (-nBits)) - 1)
s >>= (-nBits)
nBits += eLen
for (; nBits > 0; e = (e * 256) + buffer[offset + i], i += d, nBits -= 8) {}
m = e & ((1 << (-nBits)) - 1)
e >>= (-nBits)
nBits += mLen
for (; nBits > 0; m = (m * 256) + buffer[offset + i], i += d, nBits -= 8) {}
if (e === 0) {
e = 1 - eBias
} else if (e === eMax) {
return m ? NaN : ((s ? -1 : 1) * Infinity)
} else {
m = m + Math.pow(2, mLen)
e = e - eBias
}
return (s ? -1 : 1) * m * Math.pow(2, e - mLen)
}
exports.write = function (buffer, value, offset, isLE, mLen, nBytes) {
var e, m, c
var eLen = (nBytes * 8) - mLen - 1
var eMax = (1 << eLen) - 1
var eBias = eMax >> 1
var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0)
var i = isLE ? 0 : (nBytes - 1)
var d = isLE ? 1 : -1
var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0
value = Math.abs(value)
if (isNaN(value) || value === Infinity) {
m = isNaN(value) ? 1 : 0
e = eMax
} else {
e = Math.floor(Math.log(value) / Math.LN2)
if (value * (c = Math.pow(2, -e)) < 1) {
e--
c *= 2
}
if (e + eBias >= 1) {
value += rt / c
} else {
value += rt * Math.pow(2, 1 - eBias)
}
if (value * c >= 2) {
e++
c /= 2
}
if (e + eBias >= eMax) {
m = 0
e = eMax
} else if (e + eBias >= 1) {
m = ((value * c) - 1) * Math.pow(2, mLen)
e = e + eBias
} else {
m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen)
e = 0
}
}
for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}
e = (e << mLen) | m
eLen += mLen
for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}
buffer[offset + i - d] |= s * 128
}
},{}],21:[function(require,module,exports){
if (typeof Object.create === 'function') {
// implementation from standard node.js 'util' module
module.exports = function inherits(ctor, superCtor) {
if (superCtor) {
ctor.super_ = superCtor
ctor.prototype = Object.create(superCtor.prototype, {
constructor: {
value: ctor,
enumerable: false,
writable: true,
configurable: true
}
})
}
};
} else {
// old school shim for old browsers
module.exports = function inherits(ctor, superCtor) {
if (superCtor) {
ctor.super_ = superCtor
var TempCtor = function () {}
TempCtor.prototype = superCtor.prototype
ctor.prototype = new TempCtor()
ctor.prototype.constructor = ctor
}
}
}
},{}],22:[function(require,module,exports){
// shim for using process in browser
var process = module.exports = {};
// cached from whatever global is present so that test runners that stub it
// don't break things. But we need to wrap it in a try catch in case it is
// wrapped in strict mode code which doesn't define any globals. It's inside a
// function because try/catches deoptimize in certain engines.
var cachedSetTimeout;
var cachedClearTimeout;
function defaultSetTimout() {
throw new Error('setTimeout has not been defined');
}
function defaultClearTimeout () {
throw new Error('clearTimeout has not been defined');
}
(function () {
try {
if (typeof setTimeout === 'function') {
cachedSetTimeout = setTimeout;
} else {
cachedSetTimeout = defaultSetTimout;
}
} catch (e) {
cachedSetTimeout = defaultSetTimout;
}
try {
if (typeof clearTimeout === 'function') {
cachedClearTimeout = clearTimeout;
} else {
cachedClearTimeout = defaultClearTimeout;
}
} catch (e) {
cachedClearTimeout = defaultClearTimeout;
}
} ())
function runTimeout(fun) {
if (cachedSetTimeout === setTimeout) {
//normal enviroments in sane situations
return setTimeout(fun, 0);
}
// if setTimeout wasn't available but was latter defined
if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) {
cachedSetTimeout = setTimeout;
return setTimeout(fun, 0);
}
try {
// when when somebody has screwed with setTimeout but no I.E. maddness
return cachedSetTimeout(fun, 0);
} catch(e){
try {
// When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally
return cachedSetTimeout.call(null, fun, 0);
} catch(e){
// same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error
return cachedSetTimeout.call(this, fun, 0);
}
}
}
function runClearTimeout(marker) {
if (cachedClearTimeout === clearTimeout) {
//normal enviroments in sane situations
return clearTimeout(marker);
}
// if clearTimeout wasn't available but was latter defined
if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) {
cachedClearTimeout = clearTimeout;
return clearTimeout(marker);
}
try {
// when when somebody has screwed with setTimeout but no I.E. maddness
return cachedClearTimeout(marker);
} catch (e){
try {
// When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally
return cachedClearTimeout.call(null, marker);
} catch (e){
// same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error.
// Some versions of I.E. have different rules for clearTimeout vs setTimeout
return cachedClearTimeout.call(this, marker);
}
}
}
var queue = [];
var draining = false;
var currentQueue;
var queueIndex = -1;
function cleanUpNextTick() {
if (!draining || !currentQueue) {
return;
}
draining = false;
if (currentQueue.length) {
queue = currentQueue.concat(queue);
} else {
queueIndex = -1;
}
if (queue.length) {
drainQueue();
}
}
function drainQueue() {
if (draining) {
return;
}
var timeout = runTimeout(cleanUpNextTick);
draining = true;
var len = queue.length;
while(len) {
currentQueue = queue;
queue = [];
while (++queueIndex < len) {
if (currentQueue) {
currentQueue[queueIndex].run();
}
}
queueIndex = -1;
len = queue.length;
}
currentQueue = null;
draining = false;
runClearTimeout(timeout);
}
process.nextTick = function (fun) {
var args = new Array(arguments.length - 1);
if (arguments.length > 1) {
for (var i = 1; i < arguments.length; i++) {
args[i - 1] = arguments[i];
}
}
queue.push(new Item(fun, args));
if (queue.length === 1 && !draining) {
runTimeout(drainQueue);
}
};
// v8 likes predictible objects
function Item(fun, array) {
this.fun = fun;
this.array = array;
}
Item.prototype.run = function () {
this.fun.apply(null, this.array);
};
process.title = 'browser';
process.browser = true;
process.env = {};
process.argv = [];
process.version = ''; // empty string to avoid regexp issues
process.versions = {};
function noop() {}
process.on = noop;
process.addListener = noop;
process.once = noop;
process.off = noop;
process.removeListener = noop;
process.removeAllListeners = noop;
process.emit = noop;
process.prependListener = noop;
process.prependOnceListener = noop;
process.listeners = function (name) { return [] }
process.binding = function (name) {
throw new Error('process.binding is not supported');
};
process.cwd = function () { return '/' };
process.chdir = function (dir) {
throw new Error('process.chdir is not supported');
};
process.umask = function() { return 0; };
},{}],23:[function(require,module,exports){
/*! safe-buffer. MIT License. Feross Aboukhadijeh <https://feross.org/opensource> */
/* eslint-disable node/no-deprecated-api */
var buffer = require('buffer')
var Buffer = buffer.Buffer
// alternative to using Object.keys for old browsers
function copyProps (src, dst) {
for (var key in src) {
dst[key] = src[key]
}
}
if (Buffer.from && Buffer.alloc && Buffer.allocUnsafe && Buffer.allocUnsafeSlow) {
module.exports = buffer
} else {
// Copy properties from require('buffer')
copyProps(buffer, exports)
exports.Buffer = SafeBuffer
}
function SafeBuffer (arg, encodingOrOffset, length) {
return Buffer(arg, encodingOrOffset, length)
}
SafeBuffer.prototype = Object.create(Buffer.prototype)
// Copy static methods from Buffer
copyProps(Buffer, SafeBuffer)
SafeBuffer.from = function (arg, encodingOrOffset, length) {
if (typeof arg === 'number') {
throw new TypeError('Argument must not be a number')
}
return Buffer(arg, encodingOrOffset, length)
}
SafeBuffer.alloc = function (size, fill, encoding) {
if (typeof size !== 'number') {
throw new TypeError('Argument must be a number')
}
var buf = Buffer(size)
if (fill !== undefined) {
if (typeof encoding === 'string') {
buf.fill(fill, encoding)
} else {
buf.fill(fill)
}
} else {
buf.fill(0)
}
return buf
}
SafeBuffer.allocUnsafe = function (size) {
if (typeof size !== 'number') {
throw new TypeError('Argument must be a number')
}
return Buffer(size)
}
SafeBuffer.allocUnsafeSlow = function (size) {
if (typeof size !== 'number') {
throw new TypeError('Argument must be a number')
}
return buffer.SlowBuffer(size)
}
},{"buffer":18}],24:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
module.exports = Stream;
var EE = require('events').EventEmitter;
var inherits = require('inherits');
inherits(Stream, EE);
Stream.Readable = require('readable-stream/lib/_stream_readable.js');
Stream.Writable = require('readable-stream/lib/_stream_writable.js');
Stream.Duplex = require('readable-stream/lib/_stream_duplex.js');
Stream.Transform = require('readable-stream/lib/_stream_transform.js');
Stream.PassThrough = require('readable-stream/lib/_stream_passthrough.js');
Stream.finished = require('readable-stream/lib/internal/streams/end-of-stream.js')
Stream.pipeline = require('readable-stream/lib/internal/streams/pipeline.js')
// Backwards-compat with node 0.4.x
Stream.Stream = Stream;
// old-style streams. Note that the pipe method (the only relevant
// part of this class) is overridden in the Readable class.
function Stream() {
EE.call(this);
}
Stream.prototype.pipe = function(dest, options) {
var source = this;
function ondata(chunk) {
if (dest.writable) {
if (false === dest.write(chunk) && source.pause) {
source.pause();
}
}
}
source.on('data', ondata);
function ondrain() {
if (source.readable && source.resume) {
source.resume();
}
}
dest.on('drain', ondrain);
// If the 'end' option is not supplied, dest.end() will be called when
// source gets the 'end' or 'close' events. Only dest.end() once.
if (!dest._isStdio && (!options || options.end !== false)) {
source.on('end', onend);
source.on('close', onclose);
}
var didOnEnd = false;
function onend() {
if (didOnEnd) return;
didOnEnd = true;
dest.end();
}
function onclose() {
if (didOnEnd) return;
didOnEnd = true;
if (typeof dest.destroy === 'function') dest.destroy();
}
// don't leave dangling pipes when there are errors.
function onerror(er) {
cleanup();
if (EE.listenerCount(this, 'error') === 0) {
throw er; // Unhandled stream error in pipe.
}
}
source.on('error', onerror);
dest.on('error', onerror);
// remove all the event listeners that were added.
function cleanup() {
source.removeListener('data', ondata);
dest.removeListener('drain', ondrain);
source.removeListener('end', onend);
source.removeListener('close', onclose);
source.removeListener('error', onerror);
dest.removeListener('error', onerror);
source.removeListener('end', cleanup);
source.removeListener('close', cleanup);
dest.removeListener('close', cleanup);
}
source.on('end', cleanup);
source.on('close', cleanup);
dest.on('close', cleanup);
dest.emit('pipe', source);
// Allow for unix-like usage: A.pipe(B).pipe(C)
return dest;
};
},{"events":19,"inherits":21,"readable-stream/lib/_stream_duplex.js":26,"readable-stream/lib/_stream_passthrough.js":27,"readable-stream/lib/_stream_readable.js":28,"readable-stream/lib/_stream_transform.js":29,"readable-stream/lib/_stream_writable.js":30,"readable-stream/lib/internal/streams/end-of-stream.js":34,"readable-stream/lib/internal/streams/pipeline.js":36}],25:[function(require,module,exports){
'use strict';
function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }
var codes = {};
function createErrorType(code, message, Base) {
if (!Base) {
Base = Error;
}
function getMessage(arg1, arg2, arg3) {
if (typeof message === 'string') {
return message;
} else {
return message(arg1, arg2, arg3);
}
}
var NodeError =
/*#__PURE__*/
function (_Base) {
_inheritsLoose(NodeError, _Base);
function NodeError(arg1, arg2, arg3) {
return _Base.call(this, getMessage(arg1, arg2, arg3)) || this;
}
return NodeError;
}(Base);
NodeError.prototype.name = Base.name;
NodeError.prototype.code = code;
codes[code] = NodeError;
} // https://github.com/nodejs/node/blob/v10.8.0/lib/internal/errors.js
function oneOf(expected, thing) {
if (Array.isArray(expected)) {
var len = expected.length;
expected = expected.map(function (i) {
return String(i);
});
if (len > 2) {
return "one of ".concat(thing, " ").concat(expected.slice(0, len - 1).join(', '), ", or ") + expected[len - 1];
} else if (len === 2) {
return "one of ".concat(thing, " ").concat(expected[0], " or ").concat(expected[1]);
} else {
return "of ".concat(thing, " ").concat(expected[0]);
}
} else {
return "of ".concat(thing, " ").concat(String(expected));
}
} // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/startsWith
function startsWith(str, search, pos) {
return str.substr(!pos || pos < 0 ? 0 : +pos, search.length) === search;
} // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/endsWith
function endsWith(str, search, this_len) {
if (this_len === undefined || this_len > str.length) {
this_len = str.length;
}
return str.substring(this_len - search.length, this_len) === search;
} // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/includes
function includes(str, search, start) {
if (typeof start !== 'number') {
start = 0;
}
if (start + search.length > str.length) {
return false;
} else {
return str.indexOf(search, start) !== -1;
}
}
createErrorType('ERR_INVALID_OPT_VALUE', function (name, value) {
return 'The value "' + value + '" is invalid for option "' + name + '"';
}, TypeError);
createErrorType('ERR_INVALID_ARG_TYPE', function (name, expected, actual) {
// determiner: 'must be' or 'must not be'
var determiner;
if (typeof expected === 'string' && startsWith(expected, 'not ')) {
determiner = 'must not be';
expected = expected.replace(/^not /, '');
} else {
determiner = 'must be';
}
var msg;
if (endsWith(name, ' argument')) {
// For cases like 'first argument'
msg = "The ".concat(name, " ").concat(determiner, " ").concat(oneOf(expected, 'type'));
} else {
var type = includes(name, '.') ? 'property' : 'argument';
msg = "The \"".concat(name, "\" ").concat(type, " ").concat(determiner, " ").concat(oneOf(expected, 'type'));
}
msg += ". Received type ".concat(typeof actual);
return msg;
}, TypeError);
createErrorType('ERR_STREAM_PUSH_AFTER_EOF', 'stream.push() after EOF');
createErrorType('ERR_METHOD_NOT_IMPLEMENTED', function (name) {
return 'The ' + name + ' method is not implemented';
});
createErrorType('ERR_STREAM_PREMATURE_CLOSE', 'Premature close');
createErrorType('ERR_STREAM_DESTROYED', function (name) {
return 'Cannot call ' + name + ' after a stream was destroyed';
});
createErrorType('ERR_MULTIPLE_CALLBACK', 'Callback called multiple times');
createErrorType('ERR_STREAM_CANNOT_PIPE', 'Cannot pipe, not readable');
createErrorType('ERR_STREAM_WRITE_AFTER_END', 'write after end');
createErrorType('ERR_STREAM_NULL_VALUES', 'May not write null values to stream', TypeError);
createErrorType('ERR_UNKNOWN_ENCODING', function (arg) {
return 'Unknown encoding: ' + arg;
}, TypeError);
createErrorType('ERR_STREAM_UNSHIFT_AFTER_END_EVENT', 'stream.unshift() after end event');
module.exports.codes = codes;
},{}],26:[function(require,module,exports){
(function (process){(function (){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
// a duplex stream is just a stream that is both readable and writable.
// Since JS doesn't have multiple prototypal inheritance, this class
// prototypally inherits from Readable, and then parasitically from
// Writable.
'use strict';
/*<replacement>*/
var objectKeys = Object.keys || function (obj) {
var keys = [];
for (var key in obj) keys.push(key);
return keys;
};
/*</replacement>*/
module.exports = Duplex;
var Readable = require('./_stream_readable');
var Writable = require('./_stream_writable');
require('inherits')(Duplex, Readable);
{
// Allow the keys array to be GC'ed.
var keys = objectKeys(Writable.prototype);
for (var v = 0; v < keys.length; v++) {
var method = keys[v];
if (!Duplex.prototype[method]) Duplex.prototype[method] = Writable.prototype[method];
}
}
function Duplex(options) {
if (!(this instanceof Duplex)) return new Duplex(options);
Readable.call(this, options);
Writable.call(this, options);
this.allowHalfOpen = true;
if (options) {
if (options.readable === false) this.readable = false;
if (options.writable === false) this.writable = false;
if (options.allowHalfOpen === false) {
this.allowHalfOpen = false;
this.once('end', onend);
}
}
}
Object.defineProperty(Duplex.prototype, 'writableHighWaterMark', {
// making it explicit this property is not enumerable
// because otherwise some prototype manipulation in
// userland will fail
enumerable: false,
get: function get() {
return this._writableState.highWaterMark;
}
});
Object.defineProperty(Duplex.prototype, 'writableBuffer', {
// making it explicit this property is not enumerable
// because otherwise some prototype manipulation in
// userland will fail
enumerable: false,
get: function get() {
return this._writableState && this._writableState.getBuffer();
}
});
Object.defineProperty(Duplex.prototype, 'writableLength', {
// making it explicit this property is not enumerable
// because otherwise some prototype manipulation in
// userland will fail
enumerable: false,
get: function get() {
return this._writableState.length;
}
});
// the no-half-open enforcer
function onend() {
// If the writable side ended, then we're ok.
if (this._writableState.ended) return;
// no more data can be written.
// But allow more writes to happen in this tick.
process.nextTick(onEndNT, this);
}
function onEndNT(self) {
self.end();
}
Object.defineProperty(Duplex.prototype, 'destroyed', {
// making it explicit this property is not enumerable
// because otherwise some prototype manipulation in
// userland will fail
enumerable: false,
get: function get() {
if (this._readableState === undefined || this._writableState === undefined) {
return false;
}
return this._readableState.destroyed && this._writableState.destroyed;
},
set: function set(value) {
// we ignore the value if the stream
// has not been initialized yet
if (this._readableState === undefined || this._writableState === undefined) {
return;
}
// backward compatibility, the user is explicitly
// managing destroyed
this._readableState.destroyed = value;
this._writableState.destroyed = value;
}
});
}).call(this)}).call(this,require('_process'))
},{"./_stream_readable":28,"./_stream_writable":30,"_process":22,"inherits":21}],27:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
// a passthrough stream.
// basically just the most minimal sort of Transform stream.
// Every written chunk gets output as-is.
'use strict';
module.exports = PassThrough;
var Transform = require('./_stream_transform');
require('inherits')(PassThrough, Transform);
function PassThrough(options) {
if (!(this instanceof PassThrough)) return new PassThrough(options);
Transform.call(this, options);
}
PassThrough.prototype._transform = function (chunk, encoding, cb) {
cb(null, chunk);
};
},{"./_stream_transform":29,"inherits":21}],28:[function(require,module,exports){
(function (process,global){(function (){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
'use strict';
module.exports = Readable;
/*<replacement>*/
var Duplex;
/*</replacement>*/
Readable.ReadableState = ReadableState;
/*<replacement>*/
var EE = require('events').EventEmitter;
var EElistenerCount = function EElistenerCount(emitter, type) {
return emitter.listeners(type).length;
};
/*</replacement>*/
/*<replacement>*/
var Stream = require('./internal/streams/stream');
/*</replacement>*/
var Buffer = require('buffer').Buffer;
var OurUint8Array = (typeof global !== 'undefined' ? global : typeof window !== 'undefined' ? window : typeof self !== 'undefined' ? self : {}).Uint8Array || function () {};
function _uint8ArrayToBuffer(chunk) {
return Buffer.from(chunk);
}
function _isUint8Array(obj) {
return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;
}
/*<replacement>*/
var debugUtil = require('util');
var debug;
if (debugUtil && debugUtil.debuglog) {
debug = debugUtil.debuglog('stream');
} else {
debug = function debug() {};
}
/*</replacement>*/
var BufferList = require('./internal/streams/buffer_list');
var destroyImpl = require('./internal/streams/destroy');
var _require = require('./internal/streams/state'),
getHighWaterMark = _require.getHighWaterMark;
var _require$codes = require('../errors').codes,
ERR_INVALID_ARG_TYPE = _require$codes.ERR_INVALID_ARG_TYPE,
ERR_STREAM_PUSH_AFTER_EOF = _require$codes.ERR_STREAM_PUSH_AFTER_EOF,
ERR_METHOD_NOT_IMPLEMENTED = _require$codes.ERR_METHOD_NOT_IMPLEMENTED,
ERR_STREAM_UNSHIFT_AFTER_END_EVENT = _require$codes.ERR_STREAM_UNSHIFT_AFTER_END_EVENT;
// Lazy loaded to improve the startup performance.
var StringDecoder;
var createReadableStreamAsyncIterator;
var from;
require('inherits')(Readable, Stream);
var errorOrDestroy = destroyImpl.errorOrDestroy;
var kProxyEvents = ['error', 'close', 'destroy', 'pause', 'resume'];
function prependListener(emitter, event, fn) {
// Sadly this is not cacheable as some libraries bundle their own
// event emitter implementation with them.
if (typeof emitter.prependListener === 'function') return emitter.prependListener(event, fn);
// This is a hack to make sure that our error handler is attached before any
// userland ones. NEVER DO THIS. This is here only because this code needs
// to continue to work with older versions of Node.js that do not include
// the prependListener() method. The goal is to eventually remove this hack.
if (!emitter._events || !emitter._events[event]) emitter.on(event, fn);else if (Array.isArray(emitter._events[event])) emitter._events[event].unshift(fn);else emitter._events[event] = [fn, emitter._events[event]];
}
function ReadableState(options, stream, isDuplex) {
Duplex = Duplex || require('./_stream_duplex');
options = options || {};
// Duplex streams are both readable and writable, but share
// the same options object.
// However, some cases require setting options to different
// values for the readable and the writable sides of the duplex stream.
// These options can be provided separately as readableXXX and writableXXX.
if (typeof isDuplex !== 'boolean') isDuplex = stream instanceof Duplex;
// object stream flag. Used to make read(n) ignore n and to
// make all the buffer merging and length checks go away
this.objectMode = !!options.objectMode;
if (isDuplex) this.objectMode = this.objectMode || !!options.readableObjectMode;
// the point at which it stops calling _read() to fill the buffer
// Note: 0 is a valid value, means "don't call _read preemptively ever"
this.highWaterMark = getHighWaterMark(this, options, 'readableHighWaterMark', isDuplex);
// A linked list is used to store data chunks instead of an array because the
// linked list can remove elements from the beginning faster than
// array.shift()
this.buffer = new BufferList();
this.length = 0;
this.pipes = null;
this.pipesCount = 0;
this.flowing = null;
this.ended = false;
this.endEmitted = false;
this.reading = false;
// a flag to be able to tell if the event 'readable'/'data' is emitted
// immediately, or on a later tick. We set this to true at first, because
// any actions that shouldn't happen until "later" should generally also
// not happen before the first read call.
this.sync = true;
// whenever we return null, then we set a flag to say
// that we're awaiting a 'readable' event emission.
this.needReadable = false;
this.emittedReadable = false;
this.readableListening = false;
this.resumeScheduled = false;
this.paused = true;
// Should close be emitted on destroy. Defaults to true.
this.emitClose = options.emitClose !== false;
// Should .destroy() be called after 'end' (and potentially 'finish')
this.autoDestroy = !!options.autoDestroy;
// has it been destroyed
this.destroyed = false;
// Crypto is kind of old and crusty. Historically, its default string
// encoding is 'binary' so we have to make this configurable.
// Everything else in the universe uses 'utf8', though.
this.defaultEncoding = options.defaultEncoding || 'utf8';
// the number of writers that are awaiting a drain event in .pipe()s
this.awaitDrain = 0;
// if true, a maybeReadMore has been scheduled
this.readingMore = false;
this.decoder = null;
this.encoding = null;
if (options.encoding) {
if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder;
this.decoder = new StringDecoder(options.encoding);
this.encoding = options.encoding;
}
}
function Readable(options) {
Duplex = Duplex || require('./_stream_duplex');
if (!(this instanceof Readable)) return new Readable(options);
// Checking for a Stream.Duplex instance is faster here instead of inside
// the ReadableState constructor, at least with V8 6.5
var isDuplex = this instanceof Duplex;
this._readableState = new ReadableState(options, this, isDuplex);
// legacy
this.readable = true;
if (options) {
if (typeof options.read === 'function') this._read = options.read;
if (typeof options.destroy === 'function') this._destroy = options.destroy;
}
Stream.call(this);
}
Object.defineProperty(Readable.prototype, 'destroyed', {
// making it explicit this property is not enumerable
// because otherwise some prototype manipulation in
// userland will fail
enumerable: false,
get: function get() {
if (this._readableState === undefined) {
return false;
}
return this._readableState.destroyed;
},
set: function set(value) {
// we ignore the value if the stream
// has not been initialized yet
if (!this._readableState) {
return;
}
// backward compatibility, the user is explicitly
// managing destroyed
this._readableState.destroyed = value;
}
});
Readable.prototype.destroy = destroyImpl.destroy;
Readable.prototype._undestroy = destroyImpl.undestroy;
Readable.prototype._destroy = function (err, cb) {
cb(err);
};
// Manually shove something into the read() buffer.
// This returns true if the highWaterMark has not been hit yet,
// similar to how Writable.write() returns true if you should
// write() some more.
Readable.prototype.push = function (chunk, encoding) {
var state = this._readableState;
var skipChunkCheck;
if (!state.objectMode) {
if (typeof chunk === 'string') {
encoding = encoding || state.defaultEncoding;
if (encoding !== state.encoding) {
chunk = Buffer.from(chunk, encoding);
encoding = '';
}
skipChunkCheck = true;
}
} else {
skipChunkCheck = true;
}
return readableAddChunk(this, chunk, encoding, false, skipChunkCheck);
};
// Unshift should *always* be something directly out of read()
Readable.prototype.unshift = function (chunk) {
return readableAddChunk(this, chunk, null, true, false);
};
function readableAddChunk(stream, chunk, encoding, addToFront, skipChunkCheck) {
debug('readableAddChunk', chunk);
var state = stream._readableState;
if (chunk === null) {
state.reading = false;
onEofChunk(stream, state);
} else {
var er;
if (!skipChunkCheck) er = chunkInvalid(state, chunk);
if (er) {
errorOrDestroy(stream, er);
} else if (state.objectMode || chunk && chunk.length > 0) {
if (typeof chunk !== 'string' && !state.objectMode && Object.getPrototypeOf(chunk) !== Buffer.prototype) {
chunk = _uint8ArrayToBuffer(chunk);
}
if (addToFront) {
if (state.endEmitted) errorOrDestroy(stream, new ERR_STREAM_UNSHIFT_AFTER_END_EVENT());else addChunk(stream, state, chunk, true);
} else if (state.ended) {
errorOrDestroy(stream, new ERR_STREAM_PUSH_AFTER_EOF());
} else if (state.destroyed) {
return false;
} else {
state.reading = false;
if (state.decoder && !encoding) {
chunk = state.decoder.write(chunk);
if (state.objectMode || chunk.length !== 0) addChunk(stream, state, chunk, false);else maybeReadMore(stream, state);
} else {
addChunk(stream, state, chunk, false);
}
}
} else if (!addToFront) {
state.reading = false;
maybeReadMore(stream, state);
}
}
// We can push more data if we are below the highWaterMark.
// Also, if we have no data yet, we can stand some more bytes.
// This is to work around cases where hwm=0, such as the repl.
return !state.ended && (state.length < state.highWaterMark || state.length === 0);
}
function addChunk(stream, state, chunk, addToFront) {
if (state.flowing && state.length === 0 && !state.sync) {
state.awaitDrain = 0;
stream.emit('data', chunk);
} else {
// update the buffer info.
state.length += state.objectMode ? 1 : chunk.length;
if (addToFront) state.buffer.unshift(chunk);else state.buffer.push(chunk);
if (state.needReadable) emitReadable(stream);
}
maybeReadMore(stream, state);
}
function chunkInvalid(state, chunk) {
var er;
if (!_isUint8Array(chunk) && typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) {
er = new ERR_INVALID_ARG_TYPE('chunk', ['string', 'Buffer', 'Uint8Array'], chunk);
}
return er;
}
Readable.prototype.isPaused = function () {
return this._readableState.flowing === false;
};
// backwards compatibility.
Readable.prototype.setEncoding = function (enc) {
if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder;
var decoder = new StringDecoder(enc);
this._readableState.decoder = decoder;
// If setEncoding(null), decoder.encoding equals utf8
this._readableState.encoding = this._readableState.decoder.encoding;
// Iterate over current buffer to convert already stored Buffers:
var p = this._readableState.buffer.head;
var content = '';
while (p !== null) {
content += decoder.write(p.data);
p = p.next;
}
this._readableState.buffer.clear();
if (content !== '') this._readableState.buffer.push(content);
this._readableState.length = content.length;
return this;
};
// Don't raise the hwm > 1GB
var MAX_HWM = 0x40000000;
function computeNewHighWaterMark(n) {
if (n >= MAX_HWM) {
// TODO(ronag): Throw ERR_VALUE_OUT_OF_RANGE.
n = MAX_HWM;
} else {
// Get the next highest power of 2 to prevent increasing hwm excessively in
// tiny amounts
n--;
n |= n >>> 1;
n |= n >>> 2;
n |= n >>> 4;
n |= n >>> 8;
n |= n >>> 16;
n++;
}
return n;
}
// This function is designed to be inlinable, so please take care when making
// changes to the function body.
function howMuchToRead(n, state) {
if (n <= 0 || state.length === 0 && state.ended) return 0;
if (state.objectMode) return 1;
if (n !== n) {
// Only flow one buffer at a time
if (state.flowing && state.length) return state.buffer.head.data.length;else return state.length;
}
// If we're asking for more than the current hwm, then raise the hwm.
if (n > state.highWaterMark) state.highWaterMark = computeNewHighWaterMark(n);
if (n <= state.length) return n;
// Don't have enough
if (!state.ended) {
state.needReadable = true;
return 0;
}
return state.length;
}
// you can override either this method, or the async _read(n) below.
Readable.prototype.read = function (n) {
debug('read', n);
n = parseInt(n, 10);
var state = this._readableState;
var nOrig = n;
if (n !== 0) state.emittedReadable = false;
// if we're doing read(0) to trigger a readable event, but we
// already have a bunch of data in the buffer, then just trigger
// the 'readable' event and move on.
if (n === 0 && state.needReadable && ((state.highWaterMark !== 0 ? state.length >= state.highWaterMark : state.length > 0) || state.ended)) {
debug('read: emitReadable', state.length, state.ended);
if (state.length === 0 && state.ended) endReadable(this);else emitReadable(this);
return null;
}
n = howMuchToRead(n, state);
// if we've ended, and we're now clear, then finish it up.
if (n === 0 && state.ended) {
if (state.length === 0) endReadable(this);
return null;
}
// All the actual chunk generation logic needs to be
// *below* the call to _read. The reason is that in certain
// synthetic stream cases, such as passthrough streams, _read
// may be a completely synchronous operation which may change
// the state of the read buffer, providing enough data when
// before there was *not* enough.
//
// So, the steps are:
// 1. Figure out what the state of things will be after we do
// a read from the buffer.
//
// 2. If that resulting state will trigger a _read, then call _read.
// Note that this may be asynchronous, or synchronous. Yes, it is
// deeply ugly to write APIs this way, but that still doesn't mean
// that the Readable class should behave improperly, as streams are
// designed to be sync/async agnostic.
// Take note if the _read call is sync or async (ie, if the read call
// has returned yet), so that we know whether or not it's safe to emit
// 'readable' etc.
//
// 3. Actually pull the requested chunks out of the buffer and return.
// if we need a readable event, then we need to do some reading.
var doRead = state.needReadable;
debug('need readable', doRead);
// if we currently have less than the highWaterMark, then also read some
if (state.length === 0 || state.length - n < state.highWaterMark) {
doRead = true;
debug('length less than watermark', doRead);
}
// however, if we've ended, then there's no point, and if we're already
// reading, then it's unnecessary.
if (state.ended || state.reading) {
doRead = false;
debug('reading or ended', doRead);
} else if (doRead) {
debug('do read');
state.reading = true;
state.sync = true;
// if the length is currently zero, then we *need* a readable event.
if (state.length === 0) state.needReadable = true;
// call internal read method
this._read(state.highWaterMark);
state.sync = false;
// If _read pushed data synchronously, then `reading` will be false,
// and we need to re-evaluate how much data we can return to the user.
if (!state.reading) n = howMuchToRead(nOrig, state);
}
var ret;
if (n > 0) ret = fromList(n, state);else ret = null;
if (ret === null) {
state.needReadable = state.length <= state.highWaterMark;
n = 0;
} else {
state.length -= n;
state.awaitDrain = 0;
}
if (state.length === 0) {
// If we have nothing in the buffer, then we want to know
// as soon as we *do* get something into the buffer.
if (!state.ended) state.needReadable = true;
// If we tried to read() past the EOF, then emit end on the next tick.
if (nOrig !== n && state.ended) endReadable(this);
}
if (ret !== null) this.emit('data', ret);
return ret;
};
function onEofChunk(stream, state) {
debug('onEofChunk');
if (state.ended) return;
if (state.decoder) {
var chunk = state.decoder.end();
if (chunk && chunk.length) {
state.buffer.push(chunk);
state.length += state.objectMode ? 1 : chunk.length;
}
}
state.ended = true;
if (state.sync) {
// if we are sync, wait until next tick to emit the data.
// Otherwise we risk emitting data in the flow()
// the readable code triggers during a read() call
emitReadable(stream);
} else {
// emit 'readable' now to make sure it gets picked up.
state.needReadable = false;
if (!state.emittedReadable) {
state.emittedReadable = true;
emitReadable_(stream);
}
}
}
// Don't emit readable right away in sync mode, because this can trigger
// another read() call => stack overflow. This way, it might trigger
// a nextTick recursion warning, but that's not so bad.
function emitReadable(stream) {
var state = stream._readableState;
debug('emitReadable', state.needReadable, state.emittedReadable);
state.needReadable = false;
if (!state.emittedReadable) {
debug('emitReadable', state.flowing);
state.emittedReadable = true;
process.nextTick(emitReadable_, stream);
}
}
function emitReadable_(stream) {
var state = stream._readableState;
debug('emitReadable_', state.destroyed, state.length, state.ended);
if (!state.destroyed && (state.length || state.ended)) {
stream.emit('readable');
state.emittedReadable = false;
}
// The stream needs another readable event if
// 1. It is not flowing, as the flow mechanism will take
// care of it.
// 2. It is not ended.
// 3. It is below the highWaterMark, so we can schedule
// another readable later.
state.needReadable = !state.flowing && !state.ended && state.length <= state.highWaterMark;
flow(stream);
}
// at this point, the user has presumably seen the 'readable' event,
// and called read() to consume some data. that may have triggered
// in turn another _read(n) call, in which case reading = true if
// it's in progress.
// However, if we're not ended, or reading, and the length < hwm,
// then go ahead and try to read some more preemptively.
function maybeReadMore(stream, state) {
if (!state.readingMore) {
state.readingMore = true;
process.nextTick(maybeReadMore_, stream, state);
}
}
function maybeReadMore_(stream, state) {
// Attempt to read more data if we should.
//
// The conditions for reading more data are (one of):
// - Not enough data buffered (state.length < state.highWaterMark). The loop
// is responsible for filling the buffer with enough data if such data
// is available. If highWaterMark is 0 and we are not in the flowing mode
// we should _not_ attempt to buffer any extra data. We'll get more data
// when the stream consumer calls read() instead.
// - No data in the buffer, and the stream is in flowing mode. In this mode
// the loop below is responsible for ensuring read() is called. Failing to
// call read here would abort the flow and there's no other mechanism for
// continuing the flow if the stream consumer has just subscribed to the
// 'data' event.
//
// In addition to the above conditions to keep reading data, the following
// conditions prevent the data from being read:
// - The stream has ended (state.ended).
// - There is already a pending 'read' operation (state.reading). This is a
// case where the the stream has called the implementation defined _read()
// method, but they are processing the call asynchronously and have _not_
// called push() with new data. In this case we skip performing more
// read()s. The execution ends in this method again after the _read() ends
// up calling push() with more data.
while (!state.reading && !state.ended && (state.length < state.highWaterMark || state.flowing && state.length === 0)) {
var len = state.length;
debug('maybeReadMore read 0');
stream.read(0);
if (len === state.length)
// didn't get any data, stop spinning.
break;
}
state.readingMore = false;
}
// abstract method. to be overridden in specific implementation classes.
// call cb(er, data) where data is <= n in length.
// for virtual (non-string, non-buffer) streams, "length" is somewhat
// arbitrary, and perhaps not very meaningful.
Readable.prototype._read = function (n) {
errorOrDestroy(this, new ERR_METHOD_NOT_IMPLEMENTED('_read()'));
};
Readable.prototype.pipe = function (dest, pipeOpts) {
var src = this;
var state = this._readableState;
switch (state.pipesCount) {
case 0:
state.pipes = dest;
break;
case 1:
state.pipes = [state.pipes, dest];
break;
default:
state.pipes.push(dest);
break;
}
state.pipesCount += 1;
debug('pipe count=%d opts=%j', state.pipesCount, pipeOpts);
var doEnd = (!pipeOpts || pipeOpts.end !== false) && dest !== process.stdout && dest !== process.stderr;
var endFn = doEnd ? onend : unpipe;
if (state.endEmitted) process.nextTick(endFn);else src.once('end', endFn);
dest.on('unpipe', onunpipe);
function onunpipe(readable, unpipeInfo) {
debug('onunpipe');
if (readable === src) {
if (unpipeInfo && unpipeInfo.hasUnpiped === false) {
unpipeInfo.hasUnpiped = true;
cleanup();
}
}
}
function onend() {
debug('onend');
dest.end();
}
// when the dest drains, it reduces the awaitDrain counter
// on the source. This would be more elegant with a .once()
// handler in flow(), but adding and removing repeatedly is
// too slow.
var ondrain = pipeOnDrain(src);
dest.on('drain', ondrain);
var cleanedUp = false;
function cleanup() {
debug('cleanup');
// cleanup event handlers once the pipe is broken
dest.removeListener('close', onclose);
dest.removeListener('finish', onfinish);
dest.removeListener('drain', ondrain);
dest.removeListener('error', onerror);
dest.removeListener('unpipe', onunpipe);
src.removeListener('end', onend);
src.removeListener('end', unpipe);
src.removeListener('data', ondata);
cleanedUp = true;
// if the reader is waiting for a drain event from this
// specific writer, then it would cause it to never start
// flowing again.
// So, if this is awaiting a drain, then we just call it now.
// If we don't know, then assume that we are waiting for one.
if (state.awaitDrain && (!dest._writableState || dest._writableState.needDrain)) ondrain();
}
src.on('data', ondata);
function ondata(chunk) {
debug('ondata');
var ret = dest.write(chunk);
debug('dest.write', ret);
if (ret === false) {
// If the user unpiped during `dest.write()`, it is possible
// to get stuck in a permanently paused state if that write
// also returned false.
// => Check whether `dest` is still a piping destination.
if ((state.pipesCount === 1 && state.pipes === dest || state.pipesCount > 1 && indexOf(state.pipes, dest) !== -1) && !cleanedUp) {
debug('false write response, pause', state.awaitDrain);
state.awaitDrain++;
}
src.pause();
}
}
// if the dest has an error, then stop piping into it.
// however, don't suppress the throwing behavior for this.
function onerror(er) {
debug('onerror', er);
unpipe();
dest.removeListener('error', onerror);
if (EElistenerCount(dest, 'error') === 0) errorOrDestroy(dest, er);
}
// Make sure our error handler is attached before userland ones.
prependListener(dest, 'error', onerror);
// Both close and finish should trigger unpipe, but only once.
function onclose() {
dest.removeListener('finish', onfinish);
unpipe();
}
dest.once('close', onclose);
function onfinish() {
debug('onfinish');
dest.removeListener('close', onclose);
unpipe();
}
dest.once('finish', onfinish);
function unpipe() {
debug('unpipe');
src.unpipe(dest);
}
// tell the dest that it's being piped to
dest.emit('pipe', src);
// start the flow if it hasn't been started already.
if (!state.flowing) {
debug('pipe resume');
src.resume();
}
return dest;
};
function pipeOnDrain(src) {
return function pipeOnDrainFunctionResult() {
var state = src._readableState;
debug('pipeOnDrain', state.awaitDrain);
if (state.awaitDrain) state.awaitDrain--;
if (state.awaitDrain === 0 && EElistenerCount(src, 'data')) {
state.flowing = true;
flow(src);
}
};
}
Readable.prototype.unpipe = function (dest) {
var state = this._readableState;
var unpipeInfo = {
hasUnpiped: false
};
// if we're not piping anywhere, then do nothing.
if (state.pipesCount === 0) return this;
// just one destination. most common case.
if (state.pipesCount === 1) {
// passed in one, but it's not the right one.
if (dest && dest !== state.pipes) return this;
if (!dest) dest = state.pipes;
// got a match.
state.pipes = null;
state.pipesCount = 0;
state.flowing = false;
if (dest) dest.emit('unpipe', this, unpipeInfo);
return this;
}
// slow case. multiple pipe destinations.
if (!dest) {
// remove all.
var dests = state.pipes;
var len = state.pipesCount;
state.pipes = null;
state.pipesCount = 0;
state.flowing = false;
for (var i = 0; i < len; i++) dests[i].emit('unpipe', this, {
hasUnpiped: false
});
return this;
}
// try to find the right one.
var index = indexOf(state.pipes, dest);
if (index === -1) return this;
state.pipes.splice(index, 1);
state.pipesCount -= 1;
if (state.pipesCount === 1) state.pipes = state.pipes[0];
dest.emit('unpipe', this, unpipeInfo);
return this;
};
// set up data events if they are asked for
// Ensure readable listeners eventually get something
Readable.prototype.on = function (ev, fn) {
var res = Stream.prototype.on.call(this, ev, fn);
var state = this._readableState;
if (ev === 'data') {
// update readableListening so that resume() may be a no-op
// a few lines down. This is needed to support once('readable').
state.readableListening = this.listenerCount('readable') > 0;
// Try start flowing on next tick if stream isn't explicitly paused
if (state.flowing !== false) this.resume();
} else if (ev === 'readable') {
if (!state.endEmitted && !state.readableListening) {
state.readableListening = state.needReadable = true;
state.flowing = false;
state.emittedReadable = false;
debug('on readable', state.length, state.reading);
if (state.length) {
emitReadable(this);
} else if (!state.reading) {
process.nextTick(nReadingNextTick, this);
}
}
}
return res;
};
Readable.prototype.addListener = Readable.prototype.on;
Readable.prototype.removeListener = function (ev, fn) {
var res = Stream.prototype.removeListener.call(this, ev, fn);
if (ev === 'readable') {
// We need to check if there is someone still listening to
// readable and reset the state. However this needs to happen
// after readable has been emitted but before I/O (nextTick) to
// support once('readable', fn) cycles. This means that calling
// resume within the same tick will have no
// effect.
process.nextTick(updateReadableListening, this);
}
return res;
};
Readable.prototype.removeAllListeners = function (ev) {
var res = Stream.prototype.removeAllListeners.apply(this, arguments);
if (ev === 'readable' || ev === undefined) {
// We need to check if there is someone still listening to
// readable and reset the state. However this needs to happen
// after readable has been emitted but before I/O (nextTick) to
// support once('readable', fn) cycles. This means that calling
// resume within the same tick will have no
// effect.
process.nextTick(updateReadableListening, this);
}
return res;
};
function updateReadableListening(self) {
var state = self._readableState;
state.readableListening = self.listenerCount('readable') > 0;
if (state.resumeScheduled && !state.paused) {
// flowing needs to be set to true now, otherwise
// the upcoming resume will not flow.
state.flowing = true;
// crude way to check if we should resume
} else if (self.listenerCount('data') > 0) {
self.resume();
}
}
function nReadingNextTick(self) {
debug('readable nexttick read 0');
self.read(0);
}
// pause() and resume() are remnants of the legacy readable stream API
// If the user uses them, then switch into old mode.
Readable.prototype.resume = function () {
var state = this._readableState;
if (!state.flowing) {
debug('resume');
// we flow only if there is no one listening
// for readable, but we still have to call
// resume()
state.flowing = !state.readableListening;
resume(this, state);
}
state.paused = false;
return this;
};
function resume(stream, state) {
if (!state.resumeScheduled) {
state.resumeScheduled = true;
process.nextTick(resume_, stream, state);
}
}
function resume_(stream, state) {
debug('resume', state.reading);
if (!state.reading) {
stream.read(0);
}
state.resumeScheduled = false;
stream.emit('resume');
flow(stream);
if (state.flowing && !state.reading) stream.read(0);
}
Readable.prototype.pause = function () {
debug('call pause flowing=%j', this._readableState.flowing);
if (this._readableState.flowing !== false) {
debug('pause');
this._readableState.flowing = false;
this.emit('pause');
}
this._readableState.paused = true;
return this;
};
function flow(stream) {
var state = stream._readableState;
debug('flow', state.flowing);
while (state.flowing && stream.read() !== null);
}
// wrap an old-style stream as the async data source.
// This is *not* part of the readable stream interface.
// It is an ugly unfortunate mess of history.
Readable.prototype.wrap = function (stream) {
var _this = this;
var state = this._readableState;
var paused = false;
stream.on('end', function () {
debug('wrapped end');
if (state.decoder && !state.ended) {
var chunk = state.decoder.end();
if (chunk && chunk.length) _this.push(chunk);
}
_this.push(null);
});
stream.on('data', function (chunk) {
debug('wrapped data');
if (state.decoder) chunk = state.decoder.write(chunk);
// don't skip over falsy values in objectMode
if (state.objectMode && (chunk === null || chunk === undefined)) return;else if (!state.objectMode && (!chunk || !chunk.length)) return;
var ret = _this.push(chunk);
if (!ret) {
paused = true;
stream.pause();
}
});
// proxy all the other methods.
// important when wrapping filters and duplexes.
for (var i in stream) {
if (this[i] === undefined && typeof stream[i] === 'function') {
this[i] = function methodWrap(method) {
return function methodWrapReturnFunction() {
return stream[method].apply(stream, arguments);
};
}(i);
}
}
// proxy certain important events.
for (var n = 0; n < kProxyEvents.length; n++) {
stream.on(kProxyEvents[n], this.emit.bind(this, kProxyEvents[n]));
}
// when we try to consume some more bytes, simply unpause the
// underlying stream.
this._read = function (n) {
debug('wrapped _read', n);
if (paused) {
paused = false;
stream.resume();
}
};
return this;
};
if (typeof Symbol === 'function') {
Readable.prototype[Symbol.asyncIterator] = function () {
if (createReadableStreamAsyncIterator === undefined) {
createReadableStreamAsyncIterator = require('./internal/streams/async_iterator');
}
return createReadableStreamAsyncIterator(this);
};
}
Object.defineProperty(Readable.prototype, 'readableHighWaterMark', {
// making it explicit this property is not enumerable
// because otherwise some prototype manipulation in
// userland will fail
enumerable: false,
get: function get() {
return this._readableState.highWaterMark;
}
});
Object.defineProperty(Readable.prototype, 'readableBuffer', {
// making it explicit this property is not enumerable
// because otherwise some prototype manipulation in
// userland will fail
enumerable: false,
get: function get() {
return this._readableState && this._readableState.buffer;
}
});
Object.defineProperty(Readable.prototype, 'readableFlowing', {
// making it explicit this property is not enumerable
// because otherwise some prototype manipulation in
// userland will fail
enumerable: false,
get: function get() {
return this._readableState.flowing;
},
set: function set(state) {
if (this._readableState) {
this._readableState.flowing = state;
}
}
});
// exposed for testing purposes only.
Readable._fromList = fromList;
Object.defineProperty(Readable.prototype, 'readableLength', {
// making it explicit this property is not enumerable
// because otherwise some prototype manipulation in
// userland will fail
enumerable: false,
get: function get() {
return this._readableState.length;
}
});
// Pluck off n bytes from an array of buffers.
// Length is the combined lengths of all the buffers in the list.
// This function is designed to be inlinable, so please take care when making
// changes to the function body.
function fromList(n, state) {
// nothing buffered
if (state.length === 0) return null;
var ret;
if (state.objectMode) ret = state.buffer.shift();else if (!n || n >= state.length) {
// read it all, truncate the list
if (state.decoder) ret = state.buffer.join('');else if (state.buffer.length === 1) ret = state.buffer.first();else ret = state.buffer.concat(state.length);
state.buffer.clear();
} else {
// read part of list
ret = state.buffer.consume(n, state.decoder);
}
return ret;
}
function endReadable(stream) {
var state = stream._readableState;
debug('endReadable', state.endEmitted);
if (!state.endEmitted) {
state.ended = true;
process.nextTick(endReadableNT, state, stream);
}
}
function endReadableNT(state, stream) {
debug('endReadableNT', state.endEmitted, state.length);
// Check that we didn't get one last unshift.
if (!state.endEmitted && state.length === 0) {
state.endEmitted = true;
stream.readable = false;
stream.emit('end');
if (state.autoDestroy) {
// In case of duplex streams we need a way to detect
// if the writable side is ready for autoDestroy as well
var wState = stream._writableState;
if (!wState || wState.autoDestroy && wState.finished) {
stream.destroy();
}
}
}
}
if (typeof Symbol === 'function') {
Readable.from = function (iterable, opts) {
if (from === undefined) {
from = require('./internal/streams/from');
}
return from(Readable, iterable, opts);
};
}
function indexOf(xs, x) {
for (var i = 0, l = xs.length; i < l; i++) {
if (xs[i] === x) return i;
}
return -1;
}
}).call(this)}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"../errors":25,"./_stream_duplex":26,"./internal/streams/async_iterator":31,"./internal/streams/buffer_list":32,"./internal/streams/destroy":33,"./internal/streams/from":35,"./internal/streams/state":37,"./internal/streams/stream":38,"_process":22,"buffer":18,"events":19,"inherits":21,"string_decoder/":39,"util":17}],29:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
// a transform stream is a readable/writable stream where you do
// something with the data. Sometimes it's called a "filter",
// but that's not a great name for it, since that implies a thing where
// some bits pass through, and others are simply ignored. (That would
// be a valid example of a transform, of course.)
//
// While the output is causally related to the input, it's not a
// necessarily symmetric or synchronous transformation. For example,
// a zlib stream might take multiple plain-text writes(), and then
// emit a single compressed chunk some time in the future.
//
// Here's how this works:
//
// The Transform stream has all the aspects of the readable and writable
// stream classes. When you write(chunk), that calls _write(chunk,cb)
// internally, and returns false if there's a lot of pending writes
// buffered up. When you call read(), that calls _read(n) until
// there's enough pending readable data buffered up.
//
// In a transform stream, the written data is placed in a buffer. When
// _read(n) is called, it transforms the queued up data, calling the
// buffered _write cb's as it consumes chunks. If consuming a single
// written chunk would result in multiple output chunks, then the first
// outputted bit calls the readcb, and subsequent chunks just go into
// the read buffer, and will cause it to emit 'readable' if necessary.
//
// This way, back-pressure is actually determined by the reading side,
// since _read has to be called to start processing a new chunk. However,
// a pathological inflate type of transform can cause excessive buffering
// here. For example, imagine a stream where every byte of input is
// interpreted as an integer from 0-255, and then results in that many
// bytes of output. Writing the 4 bytes {ff,ff,ff,ff} would result in
// 1kb of data being output. In this case, you could write a very small
// amount of input, and end up with a very large amount of output. In
// such a pathological inflating mechanism, there'd be no way to tell
// the system to stop doing the transform. A single 4MB write could
// cause the system to run out of memory.
//
// However, even in such a pathological case, only a single written chunk
// would be consumed, and then the rest would wait (un-transformed) until
// the results of the previous transformed chunk were consumed.
'use strict';
module.exports = Transform;
var _require$codes = require('../errors').codes,
ERR_METHOD_NOT_IMPLEMENTED = _require$codes.ERR_METHOD_NOT_IMPLEMENTED,
ERR_MULTIPLE_CALLBACK = _require$codes.ERR_MULTIPLE_CALLBACK,
ERR_TRANSFORM_ALREADY_TRANSFORMING = _require$codes.ERR_TRANSFORM_ALREADY_TRANSFORMING,
ERR_TRANSFORM_WITH_LENGTH_0 = _require$codes.ERR_TRANSFORM_WITH_LENGTH_0;
var Duplex = require('./_stream_duplex');
require('inherits')(Transform, Duplex);
function afterTransform(er, data) {
var ts = this._transformState;
ts.transforming = false;
var cb = ts.writecb;
if (cb === null) {
return this.emit('error', new ERR_MULTIPLE_CALLBACK());
}
ts.writechunk = null;
ts.writecb = null;
if (data != null)
// single equals check for both `null` and `undefined`
this.push(data);
cb(er);
var rs = this._readableState;
rs.reading = false;
if (rs.needReadable || rs.length < rs.highWaterMark) {
this._read(rs.highWaterMark);
}
}
function Transform(options) {
if (!(this instanceof Transform)) return new Transform(options);
Duplex.call(this, options);
this._transformState = {
afterTransform: afterTransform.bind(this),
needTransform: false,
transforming: false,
writecb: null,
writechunk: null,
writeencoding: null
};
// start out asking for a readable event once data is transformed.
this._readableState.needReadable = true;
// we have implemented the _read method, and done the other things
// that Readable wants before the first _read call, so unset the
// sync guard flag.
this._readableState.sync = false;
if (options) {
if (typeof options.transform === 'function') this._transform = options.transform;
if (typeof options.flush === 'function') this._flush = options.flush;
}
// When the writable side finishes, then flush out anything remaining.
this.on('prefinish', prefinish);
}
function prefinish() {
var _this = this;
if (typeof this._flush === 'function' && !this._readableState.destroyed) {
this._flush(function (er, data) {
done(_this, er, data);
});
} else {
done(this, null, null);
}
}
Transform.prototype.push = function (chunk, encoding) {
this._transformState.needTransform = false;
return Duplex.prototype.push.call(this, chunk, encoding);
};
// This is the part where you do stuff!
// override this function in implementation classes.
// 'chunk' is an input chunk.
//
// Call `push(newChunk)` to pass along transformed output
// to the readable side. You may call 'push' zero or more times.
//
// Call `cb(err)` when you are done with this chunk. If you pass
// an error, then that'll put the hurt on the whole operation. If you
// never call cb(), then you'll never get another chunk.
Transform.prototype._transform = function (chunk, encoding, cb) {
cb(new ERR_METHOD_NOT_IMPLEMENTED('_transform()'));
};
Transform.prototype._write = function (chunk, encoding, cb) {
var ts = this._transformState;
ts.writecb = cb;
ts.writechunk = chunk;
ts.writeencoding = encoding;
if (!ts.transforming) {
var rs = this._readableState;
if (ts.needTransform || rs.needReadable || rs.length < rs.highWaterMark) this._read(rs.highWaterMark);
}
};
// Doesn't matter what the args are here.
// _transform does all the work.
// That we got here means that the readable side wants more data.
Transform.prototype._read = function (n) {
var ts = this._transformState;
if (ts.writechunk !== null && !ts.transforming) {
ts.transforming = true;
this._transform(ts.writechunk, ts.writeencoding, ts.afterTransform);
} else {
// mark that we need a transform, so that any data that comes in
// will get processed, now that we've asked for it.
ts.needTransform = true;
}
};
Transform.prototype._destroy = function (err, cb) {
Duplex.prototype._destroy.call(this, err, function (err2) {
cb(err2);
});
};
function done(stream, er, data) {
if (er) return stream.emit('error', er);
if (data != null)
// single equals check for both `null` and `undefined`
stream.push(data);
// TODO(BridgeAR): Write a test for these two error cases
// if there's nothing in the write buffer, then that means
// that nothing more will ever be provided
if (stream._writableState.length) throw new ERR_TRANSFORM_WITH_LENGTH_0();
if (stream._transformState.transforming) throw new ERR_TRANSFORM_ALREADY_TRANSFORMING();
return stream.push(null);
}
},{"../errors":25,"./_stream_duplex":26,"inherits":21}],30:[function(require,module,exports){
(function (process,global){(function (){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
// A bit simpler than readable streams.
// Implement an async ._write(chunk, encoding, cb), and it'll handle all
// the drain event emission and buffering.
'use strict';
module.exports = Writable;
/* <replacement> */
function WriteReq(chunk, encoding, cb) {
this.chunk = chunk;
this.encoding = encoding;
this.callback = cb;
this.next = null;
}
// It seems a linked list but it is not
// there will be only 2 of these for each stream
function CorkedRequest(state) {
var _this = this;
this.next = null;
this.entry = null;
this.finish = function () {
onCorkedFinish(_this, state);
};
}
/* </replacement> */
/*<replacement>*/
var Duplex;
/*</replacement>*/
Writable.WritableState = WritableState;
/*<replacement>*/
var internalUtil = {
deprecate: require('util-deprecate')
};
/*</replacement>*/
/*<replacement>*/
var Stream = require('./internal/streams/stream');
/*</replacement>*/
var Buffer = require('buffer').Buffer;
var OurUint8Array = (typeof global !== 'undefined' ? global : typeof window !== 'undefined' ? window : typeof self !== 'undefined' ? self : {}).Uint8Array || function () {};
function _uint8ArrayToBuffer(chunk) {
return Buffer.from(chunk);
}
function _isUint8Array(obj) {
return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;
}
var destroyImpl = require('./internal/streams/destroy');
var _require = require('./internal/streams/state'),
getHighWaterMark = _require.getHighWaterMark;
var _require$codes = require('../errors').codes,
ERR_INVALID_ARG_TYPE = _require$codes.ERR_INVALID_ARG_TYPE,
ERR_METHOD_NOT_IMPLEMENTED = _require$codes.ERR_METHOD_NOT_IMPLEMENTED,
ERR_MULTIPLE_CALLBACK = _require$codes.ERR_MULTIPLE_CALLBACK,
ERR_STREAM_CANNOT_PIPE = _require$codes.ERR_STREAM_CANNOT_PIPE,
ERR_STREAM_DESTROYED = _require$codes.ERR_STREAM_DESTROYED,
ERR_STREAM_NULL_VALUES = _require$codes.ERR_STREAM_NULL_VALUES,
ERR_STREAM_WRITE_AFTER_END = _require$codes.ERR_STREAM_WRITE_AFTER_END,
ERR_UNKNOWN_ENCODING = _require$codes.ERR_UNKNOWN_ENCODING;
var errorOrDestroy = destroyImpl.errorOrDestroy;
require('inherits')(Writable, Stream);
function nop() {}
function WritableState(options, stream, isDuplex) {
Duplex = Duplex || require('./_stream_duplex');
options = options || {};
// Duplex streams are both readable and writable, but share
// the same options object.
// However, some cases require setting options to different
// values for the readable and the writable sides of the duplex stream,
// e.g. options.readableObjectMode vs. options.writableObjectMode, etc.
if (typeof isDuplex !== 'boolean') isDuplex = stream instanceof Duplex;
// object stream flag to indicate whether or not this stream
// contains buffers or objects.
this.objectMode = !!options.objectMode;
if (isDuplex) this.objectMode = this.objectMode || !!options.writableObjectMode;
// the point at which write() starts returning false
// Note: 0 is a valid value, means that we always return false if
// the entire buffer is not flushed immediately on write()
this.highWaterMark = getHighWaterMark(this, options, 'writableHighWaterMark', isDuplex);
// if _final has been called
this.finalCalled = false;
// drain event flag.
this.needDrain = false;
// at the start of calling end()
this.ending = false;
// when end() has been called, and returned
this.ended = false;
// when 'finish' is emitted
this.finished = false;
// has it been destroyed
this.destroyed = false;
// should we decode strings into buffers before passing to _write?
// this is here so that some node-core streams can optimize string
// handling at a lower level.
var noDecode = options.decodeStrings === false;
this.decodeStrings = !noDecode;
// Crypto is kind of old and crusty. Historically, its default string
// encoding is 'binary' so we have to make this configurable.
// Everything else in the universe uses 'utf8', though.
this.defaultEncoding = options.defaultEncoding || 'utf8';
// not an actual buffer we keep track of, but a measurement
// of how much we're waiting to get pushed to some underlying
// socket or file.
this.length = 0;
// a flag to see when we're in the middle of a write.
this.writing = false;
// when true all writes will be buffered until .uncork() call
this.corked = 0;
// a flag to be able to tell if the onwrite cb is called immediately,
// or on a later tick. We set this to true at first, because any
// actions that shouldn't happen until "later" should generally also
// not happen before the first write call.
this.sync = true;
// a flag to know if we're processing previously buffered items, which
// may call the _write() callback in the same tick, so that we don't
// end up in an overlapped onwrite situation.
this.bufferProcessing = false;
// the callback that's passed to _write(chunk,cb)
this.onwrite = function (er) {
onwrite(stream, er);
};
// the callback that the user supplies to write(chunk,encoding,cb)
this.writecb = null;
// the amount that is being written when _write is called.
this.writelen = 0;
this.bufferedRequest = null;
this.lastBufferedRequest = null;
// number of pending user-supplied write callbacks
// this must be 0 before 'finish' can be emitted
this.pendingcb = 0;
// emit prefinish if the only thing we're waiting for is _write cbs
// This is relevant for synchronous Transform streams
this.prefinished = false;
// True if the error was already emitted and should not be thrown again
this.errorEmitted = false;
// Should close be emitted on destroy. Defaults to true.
this.emitClose = options.emitClose !== false;
// Should .destroy() be called after 'finish' (and potentially 'end')
this.autoDestroy = !!options.autoDestroy;
// count buffered requests
this.bufferedRequestCount = 0;
// allocate the first CorkedRequest, there is always
// one allocated and free to use, and we maintain at most two
this.corkedRequestsFree = new CorkedRequest(this);
}
WritableState.prototype.getBuffer = function getBuffer() {
var current = this.bufferedRequest;
var out = [];
while (current) {
out.push(current);
current = current.next;
}
return out;
};
(function () {
try {
Object.defineProperty(WritableState.prototype, 'buffer', {
get: internalUtil.deprecate(function writableStateBufferGetter() {
return this.getBuffer();
}, '_writableState.buffer is deprecated. Use _writableState.getBuffer ' + 'instead.', 'DEP0003')
});
} catch (_) {}
})();
// Test _writableState for inheritance to account for Duplex streams,
// whose prototype chain only points to Readable.
var realHasInstance;
if (typeof Symbol === 'function' && Symbol.hasInstance && typeof Function.prototype[Symbol.hasInstance] === 'function') {
realHasInstance = Function.prototype[Symbol.hasInstance];
Object.defineProperty(Writable, Symbol.hasInstance, {
value: function value(object) {
if (realHasInstance.call(this, object)) return true;
if (this !== Writable) return false;
return object && object._writableState instanceof WritableState;
}
});
} else {
realHasInstance = function realHasInstance(object) {
return object instanceof this;
};
}
function Writable(options) {
Duplex = Duplex || require('./_stream_duplex');
// Writable ctor is applied to Duplexes, too.
// `realHasInstance` is necessary because using plain `instanceof`
// would return false, as no `_writableState` property is attached.
// Trying to use the custom `instanceof` for Writable here will also break the
// Node.js LazyTransform implementation, which has a non-trivial getter for
// `_writableState` that would lead to infinite recursion.
// Checking for a Stream.Duplex instance is faster here instead of inside
// the WritableState constructor, at least with V8 6.5
var isDuplex = this instanceof Duplex;
if (!isDuplex && !realHasInstance.call(Writable, this)) return new Writable(options);
this._writableState = new WritableState(options, this, isDuplex);
// legacy.
this.writable = true;
if (options) {
if (typeof options.write === 'function') this._write = options.write;
if (typeof options.writev === 'function') this._writev = options.writev;
if (typeof options.destroy === 'function') this._destroy = options.destroy;
if (typeof options.final === 'function') this._final = options.final;
}
Stream.call(this);
}
// Otherwise people can pipe Writable streams, which is just wrong.
Writable.prototype.pipe = function () {
errorOrDestroy(this, new ERR_STREAM_CANNOT_PIPE());
};
function writeAfterEnd(stream, cb) {
var er = new ERR_STREAM_WRITE_AFTER_END();
// TODO: defer error events consistently everywhere, not just the cb
errorOrDestroy(stream, er);
process.nextTick(cb, er);
}
// Checks that a user-supplied chunk is valid, especially for the particular
// mode the stream is in. Currently this means that `null` is never accepted
// and undefined/non-string values are only allowed in object mode.
function validChunk(stream, state, chunk, cb) {
var er;
if (chunk === null) {
er = new ERR_STREAM_NULL_VALUES();
} else if (typeof chunk !== 'string' && !state.objectMode) {
er = new ERR_INVALID_ARG_TYPE('chunk', ['string', 'Buffer'], chunk);
}
if (er) {
errorOrDestroy(stream, er);
process.nextTick(cb, er);
return false;
}
return true;
}
Writable.prototype.write = function (chunk, encoding, cb) {
var state = this._writableState;
var ret = false;
var isBuf = !state.objectMode && _isUint8Array(chunk);
if (isBuf && !Buffer.isBuffer(chunk)) {
chunk = _uint8ArrayToBuffer(chunk);
}
if (typeof encoding === 'function') {
cb = encoding;
encoding = null;
}
if (isBuf) encoding = 'buffer';else if (!encoding) encoding = state.defaultEncoding;
if (typeof cb !== 'function') cb = nop;
if (state.ending) writeAfterEnd(this, cb);else if (isBuf || validChunk(this, state, chunk, cb)) {
state.pendingcb++;
ret = writeOrBuffer(this, state, isBuf, chunk, encoding, cb);
}
return ret;
};
Writable.prototype.cork = function () {
this._writableState.corked++;
};
Writable.prototype.uncork = function () {
var state = this._writableState;
if (state.corked) {
state.corked--;
if (!state.writing && !state.corked && !state.bufferProcessing && state.bufferedRequest) clearBuffer(this, state);
}
};
Writable.prototype.setDefaultEncoding = function setDefaultEncoding(encoding) {
// node::ParseEncoding() requires lower case.
if (typeof encoding === 'string') encoding = encoding.toLowerCase();
if (!(['hex', 'utf8', 'utf-8', 'ascii', 'binary', 'base64', 'ucs2', 'ucs-2', 'utf16le', 'utf-16le', 'raw'].indexOf((encoding + '').toLowerCase()) > -1)) throw new ERR_UNKNOWN_ENCODING(encoding);
this._writableState.defaultEncoding = encoding;
return this;
};
Object.defineProperty(Writable.prototype, 'writableBuffer', {
// making it explicit this property is not enumerable
// because otherwise some prototype manipulation in
// userland will fail
enumerable: false,
get: function get() {
return this._writableState && this._writableState.getBuffer();
}
});
function decodeChunk(state, chunk, encoding) {
if (!state.objectMode && state.decodeStrings !== false && typeof chunk === 'string') {
chunk = Buffer.from(chunk, encoding);
}
return chunk;
}
Object.defineProperty(Writable.prototype, 'writableHighWaterMark', {
// making it explicit this property is not enumerable
// because otherwise some prototype manipulation in
// userland will fail
enumerable: false,
get: function get() {
return this._writableState.highWaterMark;
}
});
// if we're already writing something, then just put this
// in the queue, and wait our turn. Otherwise, call _write
// If we return false, then we need a drain event, so set that flag.
function writeOrBuffer(stream, state, isBuf, chunk, encoding, cb) {
if (!isBuf) {
var newChunk = decodeChunk(state, chunk, encoding);
if (chunk !== newChunk) {
isBuf = true;
encoding = 'buffer';
chunk = newChunk;
}
}
var len = state.objectMode ? 1 : chunk.length;
state.length += len;
var ret = state.length < state.highWaterMark;
// we must ensure that previous needDrain will not be reset to false.
if (!ret) state.needDrain = true;
if (state.writing || state.corked) {
var last = state.lastBufferedRequest;
state.lastBufferedRequest = {
chunk: chunk,
encoding: encoding,
isBuf: isBuf,
callback: cb,
next: null
};
if (last) {
last.next = state.lastBufferedRequest;
} else {
state.bufferedRequest = state.lastBufferedRequest;
}
state.bufferedRequestCount += 1;
} else {
doWrite(stream, state, false, len, chunk, encoding, cb);
}
return ret;
}
function doWrite(stream, state, writev, len, chunk, encoding, cb) {
state.writelen = len;
state.writecb = cb;
state.writing = true;
state.sync = true;
if (state.destroyed) state.onwrite(new ERR_STREAM_DESTROYED('write'));else if (writev) stream._writev(chunk, state.onwrite);else stream._write(chunk, encoding, state.onwrite);
state.sync = false;
}
function onwriteError(stream, state, sync, er, cb) {
--state.pendingcb;
if (sync) {
// defer the callback if we are being called synchronously
// to avoid piling up things on the stack
process.nextTick(cb, er);
// this can emit finish, and it will always happen
// after error
process.nextTick(finishMaybe, stream, state);
stream._writableState.errorEmitted = true;
errorOrDestroy(stream, er);
} else {
// the caller expect this to happen before if
// it is async
cb(er);
stream._writableState.errorEmitted = true;
errorOrDestroy(stream, er);
// this can emit finish, but finish must
// always follow error
finishMaybe(stream, state);
}
}
function onwriteStateUpdate(state) {
state.writing = false;
state.writecb = null;
state.length -= state.writelen;
state.writelen = 0;
}
function onwrite(stream, er) {
var state = stream._writableState;
var sync = state.sync;
var cb = state.writecb;
if (typeof cb !== 'function') throw new ERR_MULTIPLE_CALLBACK();
onwriteStateUpdate(state);
if (er) onwriteError(stream, state, sync, er, cb);else {
// Check if we're actually ready to finish, but don't emit yet
var finished = needFinish(state) || stream.destroyed;
if (!finished && !state.corked && !state.bufferProcessing && state.bufferedRequest) {
clearBuffer(stream, state);
}
if (sync) {
process.nextTick(afterWrite, stream, state, finished, cb);
} else {
afterWrite(stream, state, finished, cb);
}
}
}
function afterWrite(stream, state, finished, cb) {
if (!finished) onwriteDrain(stream, state);
state.pendingcb--;
cb();
finishMaybe(stream, state);
}
// Must force callback to be called on nextTick, so that we don't
// emit 'drain' before the write() consumer gets the 'false' return
// value, and has a chance to attach a 'drain' listener.
function onwriteDrain(stream, state) {
if (state.length === 0 && state.needDrain) {
state.needDrain = false;
stream.emit('drain');
}
}
// if there's something in the buffer waiting, then process it
function clearBuffer(stream, state) {
state.bufferProcessing = true;
var entry = state.bufferedRequest;
if (stream._writev && entry && entry.next) {
// Fast case, write everything using _writev()
var l = state.bufferedRequestCount;
var buffer = new Array(l);
var holder = state.corkedRequestsFree;
holder.entry = entry;
var count = 0;
var allBuffers = true;
while (entry) {
buffer[count] = entry;
if (!entry.isBuf) allBuffers = false;
entry = entry.next;
count += 1;
}
buffer.allBuffers = allBuffers;
doWrite(stream, state, true, state.length, buffer, '', holder.finish);
// doWrite is almost always async, defer these to save a bit of time
// as the hot path ends with doWrite
state.pendingcb++;
state.lastBufferedRequest = null;
if (holder.next) {
state.corkedRequestsFree = holder.next;
holder.next = null;
} else {
state.corkedRequestsFree = new CorkedRequest(state);
}
state.bufferedRequestCount = 0;
} else {
// Slow case, write chunks one-by-one
while (entry) {
var chunk = entry.chunk;
var encoding = entry.encoding;
var cb = entry.callback;
var len = state.objectMode ? 1 : chunk.length;
doWrite(stream, state, false, len, chunk, encoding, cb);
entry = entry.next;
state.bufferedRequestCount--;
// if we didn't call the onwrite immediately, then
// it means that we need to wait until it does.
// also, that means that the chunk and cb are currently
// being processed, so move the buffer counter past them.
if (state.writing) {
break;
}
}
if (entry === null) state.lastBufferedRequest = null;
}
state.bufferedRequest = entry;
state.bufferProcessing = false;
}
Writable.prototype._write = function (chunk, encoding, cb) {
cb(new ERR_METHOD_NOT_IMPLEMENTED('_write()'));
};
Writable.prototype._writev = null;
Writable.prototype.end = function (chunk, encoding, cb) {
var state = this._writableState;
if (typeof chunk === 'function') {
cb = chunk;
chunk = null;
encoding = null;
} else if (typeof encoding === 'function') {
cb = encoding;
encoding = null;
}
if (chunk !== null && chunk !== undefined) this.write(chunk, encoding);
// .end() fully uncorks
if (state.corked) {
state.corked = 1;
this.uncork();
}
// ignore unnecessary end() calls.
if (!state.ending) endWritable(this, state, cb);
return this;
};
Object.defineProperty(Writable.prototype, 'writableLength', {
// making it explicit this property is not enumerable
// because otherwise some prototype manipulation in
// userland will fail
enumerable: false,
get: function get() {
return this._writableState.length;
}
});
function needFinish(state) {
return state.ending && state.length === 0 && state.bufferedRequest === null && !state.finished && !state.writing;
}
function callFinal(stream, state) {
stream._final(function (err) {
state.pendingcb--;
if (err) {
errorOrDestroy(stream, err);
}
state.prefinished = true;
stream.emit('prefinish');
finishMaybe(stream, state);
});
}
function prefinish(stream, state) {
if (!state.prefinished && !state.finalCalled) {
if (typeof stream._final === 'function' && !state.destroyed) {
state.pendingcb++;
state.finalCalled = true;
process.nextTick(callFinal, stream, state);
} else {
state.prefinished = true;
stream.emit('prefinish');
}
}
}
function finishMaybe(stream, state) {
var need = needFinish(state);
if (need) {
prefinish(stream, state);
if (state.pendingcb === 0) {
state.finished = true;
stream.emit('finish');
if (state.autoDestroy) {
// In case of duplex streams we need a way to detect
// if the readable side is ready for autoDestroy as well
var rState = stream._readableState;
if (!rState || rState.autoDestroy && rState.endEmitted) {
stream.destroy();
}
}
}
}
return need;
}
function endWritable(stream, state, cb) {
state.ending = true;
finishMaybe(stream, state);
if (cb) {
if (state.finished) process.nextTick(cb);else stream.once('finish', cb);
}
state.ended = true;
stream.writable = false;
}
function onCorkedFinish(corkReq, state, err) {
var entry = corkReq.entry;
corkReq.entry = null;
while (entry) {
var cb = entry.callback;
state.pendingcb--;
cb(err);
entry = entry.next;
}
// reuse the free corkReq.
state.corkedRequestsFree.next = corkReq;
}
Object.defineProperty(Writable.prototype, 'destroyed', {
// making it explicit this property is not enumerable
// because otherwise some prototype manipulation in
// userland will fail
enumerable: false,
get: function get() {
if (this._writableState === undefined) {
return false;
}
return this._writableState.destroyed;
},
set: function set(value) {
// we ignore the value if the stream
// has not been initialized yet
if (!this._writableState) {
return;
}
// backward compatibility, the user is explicitly
// managing destroyed
this._writableState.destroyed = value;
}
});
Writable.prototype.destroy = destroyImpl.destroy;
Writable.prototype._undestroy = destroyImpl.undestroy;
Writable.prototype._destroy = function (err, cb) {
cb(err);
};
}).call(this)}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"../errors":25,"./_stream_duplex":26,"./internal/streams/destroy":33,"./internal/streams/state":37,"./internal/streams/stream":38,"_process":22,"buffer":18,"inherits":21,"util-deprecate":41}],31:[function(require,module,exports){
(function (process){(function (){
'use strict';
var _Object$setPrototypeO;
function _defineProperty(obj, key, value) { key = _toPropertyKey(key); if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
function _toPropertyKey(arg) { var key = _toPrimitive(arg, "string"); return typeof key === "symbol" ? key : String(key); }
function _toPrimitive(input, hint) { if (typeof input !== "object" || input === null) return input; var prim = input[Symbol.toPrimitive]; if (prim !== undefined) { var res = prim.call(input, hint || "default"); if (typeof res !== "object") return res; throw new TypeError("@@toPrimitive must return a primitive value."); } return (hint === "string" ? String : Number)(input); }
var finished = require('./end-of-stream');
var kLastResolve = Symbol('lastResolve');
var kLastReject = Symbol('lastReject');
var kError = Symbol('error');
var kEnded = Symbol('ended');
var kLastPromise = Symbol('lastPromise');
var kHandlePromise = Symbol('handlePromise');
var kStream = Symbol('stream');
function createIterResult(value, done) {
return {
value: value,
done: done
};
}
function readAndResolve(iter) {
var resolve = iter[kLastResolve];
if (resolve !== null) {
var data = iter[kStream].read();
// we defer if data is null
// we can be expecting either 'end' or
// 'error'
if (data !== null) {
iter[kLastPromise] = null;
iter[kLastResolve] = null;
iter[kLastReject] = null;
resolve(createIterResult(data, false));
}
}
}
function onReadable(iter) {
// we wait for the next tick, because it might
// emit an error with process.nextTick
process.nextTick(readAndResolve, iter);
}
function wrapForNext(lastPromise, iter) {
return function (resolve, reject) {
lastPromise.then(function () {
if (iter[kEnded]) {
resolve(createIterResult(undefined, true));
return;
}
iter[kHandlePromise](resolve, reject);
}, reject);
};
}
var AsyncIteratorPrototype = Object.getPrototypeOf(function () {});
var ReadableStreamAsyncIteratorPrototype = Object.setPrototypeOf((_Object$setPrototypeO = {
get stream() {
return this[kStream];
},
next: function next() {
var _this = this;
// if we have detected an error in the meanwhile
// reject straight away
var error = this[kError];
if (error !== null) {
return Promise.reject(error);
}
if (this[kEnded]) {
return Promise.resolve(createIterResult(undefined, true));
}
if (this[kStream].destroyed) {
// We need to defer via nextTick because if .destroy(err) is
// called, the error will be emitted via nextTick, and
// we cannot guarantee that there is no error lingering around
// waiting to be emitted.
return new Promise(function (resolve, reject) {
process.nextTick(function () {
if (_this[kError]) {
reject(_this[kError]);
} else {
resolve(createIterResult(undefined, true));
}
});
});
}
// if we have multiple next() calls
// we will wait for the previous Promise to finish
// this logic is optimized to support for await loops,
// where next() is only called once at a time
var lastPromise = this[kLastPromise];
var promise;
if (lastPromise) {
promise = new Promise(wrapForNext(lastPromise, this));
} else {
// fast path needed to support multiple this.push()
// without triggering the next() queue
var data = this[kStream].read();
if (data !== null) {
return Promise.resolve(createIterResult(data, false));
}
promise = new Promise(this[kHandlePromise]);
}
this[kLastPromise] = promise;
return promise;
}
}, _defineProperty(_Object$setPrototypeO, Symbol.asyncIterator, function () {
return this;
}), _defineProperty(_Object$setPrototypeO, "return", function _return() {
var _this2 = this;
// destroy(err, cb) is a private API
// we can guarantee we have that here, because we control the
// Readable class this is attached to
return new Promise(function (resolve, reject) {
_this2[kStream].destroy(null, function (err) {
if (err) {
reject(err);
return;
}
resolve(createIterResult(undefined, true));
});
});
}), _Object$setPrototypeO), AsyncIteratorPrototype);
var createReadableStreamAsyncIterator = function createReadableStreamAsyncIterator(stream) {
var _Object$create;
var iterator = Object.create(ReadableStreamAsyncIteratorPrototype, (_Object$create = {}, _defineProperty(_Object$create, kStream, {
value: stream,
writable: true
}), _defineProperty(_Object$create, kLastResolve, {
value: null,
writable: true
}), _defineProperty(_Object$create, kLastReject, {
value: null,
writable: true
}), _defineProperty(_Object$create, kError, {
value: null,
writable: true
}), _defineProperty(_Object$create, kEnded, {
value: stream._readableState.endEmitted,
writable: true
}), _defineProperty(_Object$create, kHandlePromise, {
value: function value(resolve, reject) {
var data = iterator[kStream].read();
if (data) {
iterator[kLastPromise] = null;
iterator[kLastResolve] = null;
iterator[kLastReject] = null;
resolve(createIterResult(data, false));
} else {
iterator[kLastResolve] = resolve;
iterator[kLastReject] = reject;
}
},
writable: true
}), _Object$create));
iterator[kLastPromise] = null;
finished(stream, function (err) {
if (err && err.code !== 'ERR_STREAM_PREMATURE_CLOSE') {
var reject = iterator[kLastReject];
// reject if we are waiting for data in the Promise
// returned by next() and store the error
if (reject !== null) {
iterator[kLastPromise] = null;
iterator[kLastResolve] = null;
iterator[kLastReject] = null;
reject(err);
}
iterator[kError] = err;
return;
}
var resolve = iterator[kLastResolve];
if (resolve !== null) {
iterator[kLastPromise] = null;
iterator[kLastResolve] = null;
iterator[kLastReject] = null;
resolve(createIterResult(undefined, true));
}
iterator[kEnded] = true;
});
stream.on('readable', onReadable.bind(null, iterator));
return iterator;
};
module.exports = createReadableStreamAsyncIterator;
}).call(this)}).call(this,require('_process'))
},{"./end-of-stream":34,"_process":22}],32:[function(require,module,exports){
'use strict';
function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); enumerableOnly && (symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; })), keys.push.apply(keys, symbols); } return keys; }
function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = null != arguments[i] ? arguments[i] : {}; i % 2 ? ownKeys(Object(source), !0).forEach(function (key) { _defineProperty(target, key, source[key]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)) : ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } return target; }
function _defineProperty(obj, key, value) { key = _toPropertyKey(key); if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, _toPropertyKey(descriptor.key), descriptor); } }
function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); Object.defineProperty(Constructor, "prototype", { writable: false }); return Constructor; }
function _toPropertyKey(arg) { var key = _toPrimitive(arg, "string"); return typeof key === "symbol" ? key : String(key); }
function _toPrimitive(input, hint) { if (typeof input !== "object" || input === null) return input; var prim = input[Symbol.toPrimitive]; if (prim !== undefined) { var res = prim.call(input, hint || "default"); if (typeof res !== "object") return res; throw new TypeError("@@toPrimitive must return a primitive value."); } return (hint === "string" ? String : Number)(input); }
var _require = require('buffer'),
Buffer = _require.Buffer;
var _require2 = require('util'),
inspect = _require2.inspect;
var custom = inspect && inspect.custom || 'inspect';
function copyBuffer(src, target, offset) {
Buffer.prototype.copy.call(src, target, offset);
}
module.exports = /*#__PURE__*/function () {
function BufferList() {
_classCallCheck(this, BufferList);
this.head = null;
this.tail = null;
this.length = 0;
}
_createClass(BufferList, [{
key: "push",
value: function push(v) {
var entry = {
data: v,
next: null
};
if (this.length > 0) this.tail.next = entry;else this.head = entry;
this.tail = entry;
++this.length;
}
}, {
key: "unshift",
value: function unshift(v) {
var entry = {
data: v,
next: this.head
};
if (this.length === 0) this.tail = entry;
this.head = entry;
++this.length;
}
}, {
key: "shift",
value: function shift() {
if (this.length === 0) return;
var ret = this.head.data;
if (this.length === 1) this.head = this.tail = null;else this.head = this.head.next;
--this.length;
return ret;
}
}, {
key: "clear",
value: function clear() {
this.head = this.tail = null;
this.length = 0;
}
}, {
key: "join",
value: function join(s) {
if (this.length === 0) return '';
var p = this.head;
var ret = '' + p.data;
while (p = p.next) ret += s + p.data;
return ret;
}
}, {
key: "concat",
value: function concat(n) {
if (this.length === 0) return Buffer.alloc(0);
var ret = Buffer.allocUnsafe(n >>> 0);
var p = this.head;
var i = 0;
while (p) {
copyBuffer(p.data, ret, i);
i += p.data.length;
p = p.next;
}
return ret;
}
// Consumes a specified amount of bytes or characters from the buffered data.
}, {
key: "consume",
value: function consume(n, hasStrings) {
var ret;
if (n < this.head.data.length) {
// `slice` is the same for buffers and strings.
ret = this.head.data.slice(0, n);
this.head.data = this.head.data.slice(n);
} else if (n === this.head.data.length) {
// First chunk is a perfect match.
ret = this.shift();
} else {
// Result spans more than one buffer.
ret = hasStrings ? this._getString(n) : this._getBuffer(n);
}
return ret;
}
}, {
key: "first",
value: function first() {
return this.head.data;
}
// Consumes a specified amount of characters from the buffered data.
}, {
key: "_getString",
value: function _getString(n) {
var p = this.head;
var c = 1;
var ret = p.data;
n -= ret.length;
while (p = p.next) {
var str = p.data;
var nb = n > str.length ? str.length : n;
if (nb === str.length) ret += str;else ret += str.slice(0, n);
n -= nb;
if (n === 0) {
if (nb === str.length) {
++c;
if (p.next) this.head = p.next;else this.head = this.tail = null;
} else {
this.head = p;
p.data = str.slice(nb);
}
break;
}
++c;
}
this.length -= c;
return ret;
}
// Consumes a specified amount of bytes from the buffered data.
}, {
key: "_getBuffer",
value: function _getBuffer(n) {
var ret = Buffer.allocUnsafe(n);
var p = this.head;
var c = 1;
p.data.copy(ret);
n -= p.data.length;
while (p = p.next) {
var buf = p.data;
var nb = n > buf.length ? buf.length : n;
buf.copy(ret, ret.length - n, 0, nb);
n -= nb;
if (n === 0) {
if (nb === buf.length) {
++c;
if (p.next) this.head = p.next;else this.head = this.tail = null;
} else {
this.head = p;
p.data = buf.slice(nb);
}
break;
}
++c;
}
this.length -= c;
return ret;
}
// Make sure the linked list only shows the minimal necessary information.
}, {
key: custom,
value: function value(_, options) {
return inspect(this, _objectSpread(_objectSpread({}, options), {}, {
// Only inspect one level.
depth: 0,
// It should not recurse.
customInspect: false
}));
}
}]);
return BufferList;
}();
},{"buffer":18,"util":17}],33:[function(require,module,exports){
(function (process){(function (){
'use strict';
// undocumented cb() API, needed for core, not for public API
function destroy(err, cb) {
var _this = this;
var readableDestroyed = this._readableState && this._readableState.destroyed;
var writableDestroyed = this._writableState && this._writableState.destroyed;
if (readableDestroyed || writableDestroyed) {
if (cb) {
cb(err);
} else if (err) {
if (!this._writableState) {
process.nextTick(emitErrorNT, this, err);
} else if (!this._writableState.errorEmitted) {
this._writableState.errorEmitted = true;
process.nextTick(emitErrorNT, this, err);
}
}
return this;
}
// we set destroyed to true before firing error callbacks in order
// to make it re-entrance safe in case destroy() is called within callbacks
if (this._readableState) {
this._readableState.destroyed = true;
}
// if this is a duplex stream mark the writable part as destroyed as well
if (this._writableState) {
this._writableState.destroyed = true;
}
this._destroy(err || null, function (err) {
if (!cb && err) {
if (!_this._writableState) {
process.nextTick(emitErrorAndCloseNT, _this, err);
} else if (!_this._writableState.errorEmitted) {
_this._writableState.errorEmitted = true;
process.nextTick(emitErrorAndCloseNT, _this, err);
} else {
process.nextTick(emitCloseNT, _this);
}
} else if (cb) {
process.nextTick(emitCloseNT, _this);
cb(err);
} else {
process.nextTick(emitCloseNT, _this);
}
});
return this;
}
function emitErrorAndCloseNT(self, err) {
emitErrorNT(self, err);
emitCloseNT(self);
}
function emitCloseNT(self) {
if (self._writableState && !self._writableState.emitClose) return;
if (self._readableState && !self._readableState.emitClose) return;
self.emit('close');
}
function undestroy() {
if (this._readableState) {
this._readableState.destroyed = false;
this._readableState.reading = false;
this._readableState.ended = false;
this._readableState.endEmitted = false;
}
if (this._writableState) {
this._writableState.destroyed = false;
this._writableState.ended = false;
this._writableState.ending = false;
this._writableState.finalCalled = false;
this._writableState.prefinished = false;
this._writableState.finished = false;
this._writableState.errorEmitted = false;
}
}
function emitErrorNT(self, err) {
self.emit('error', err);
}
function errorOrDestroy(stream, err) {
// We have tests that rely on errors being emitted
// in the same tick, so changing this is semver major.
// For now when you opt-in to autoDestroy we allow
// the error to be emitted nextTick. In a future
// semver major update we should change the default to this.
var rState = stream._readableState;
var wState = stream._writableState;
if (rState && rState.autoDestroy || wState && wState.autoDestroy) stream.destroy(err);else stream.emit('error', err);
}
module.exports = {
destroy: destroy,
undestroy: undestroy,
errorOrDestroy: errorOrDestroy
};
}).call(this)}).call(this,require('_process'))
},{"_process":22}],34:[function(require,module,exports){
// Ported from https://github.com/mafintosh/end-of-stream with
// permission from the author, Mathias Buus (@mafintosh).
'use strict';
var ERR_STREAM_PREMATURE_CLOSE = require('../../../errors').codes.ERR_STREAM_PREMATURE_CLOSE;
function once(callback) {
var called = false;
return function () {
if (called) return;
called = true;
for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
args[_key] = arguments[_key];
}
callback.apply(this, args);
};
}
function noop() {}
function isRequest(stream) {
return stream.setHeader && typeof stream.abort === 'function';
}
function eos(stream, opts, callback) {
if (typeof opts === 'function') return eos(stream, null, opts);
if (!opts) opts = {};
callback = once(callback || noop);
var readable = opts.readable || opts.readable !== false && stream.readable;
var writable = opts.writable || opts.writable !== false && stream.writable;
var onlegacyfinish = function onlegacyfinish() {
if (!stream.writable) onfinish();
};
var writableEnded = stream._writableState && stream._writableState.finished;
var onfinish = function onfinish() {
writable = false;
writableEnded = true;
if (!readable) callback.call(stream);
};
var readableEnded = stream._readableState && stream._readableState.endEmitted;
var onend = function onend() {
readable = false;
readableEnded = true;
if (!writable) callback.call(stream);
};
var onerror = function onerror(err) {
callback.call(stream, err);
};
var onclose = function onclose() {
var err;
if (readable && !readableEnded) {
if (!stream._readableState || !stream._readableState.ended) err = new ERR_STREAM_PREMATURE_CLOSE();
return callback.call(stream, err);
}
if (writable && !writableEnded) {
if (!stream._writableState || !stream._writableState.ended) err = new ERR_STREAM_PREMATURE_CLOSE();
return callback.call(stream, err);
}
};
var onrequest = function onrequest() {
stream.req.on('finish', onfinish);
};
if (isRequest(stream)) {
stream.on('complete', onfinish);
stream.on('abort', onclose);
if (stream.req) onrequest();else stream.on('request', onrequest);
} else if (writable && !stream._writableState) {
// legacy streams
stream.on('end', onlegacyfinish);
stream.on('close', onlegacyfinish);
}
stream.on('end', onend);
stream.on('finish', onfinish);
if (opts.error !== false) stream.on('error', onerror);
stream.on('close', onclose);
return function () {
stream.removeListener('complete', onfinish);
stream.removeListener('abort', onclose);
stream.removeListener('request', onrequest);
if (stream.req) stream.req.removeListener('finish', onfinish);
stream.removeListener('end', onlegacyfinish);
stream.removeListener('close', onlegacyfinish);
stream.removeListener('finish', onfinish);
stream.removeListener('end', onend);
stream.removeListener('error', onerror);
stream.removeListener('close', onclose);
};
}
module.exports = eos;
},{"../../../errors":25}],35:[function(require,module,exports){
module.exports = function () {
throw new Error('Readable.from is not available in the browser')
};
},{}],36:[function(require,module,exports){
// Ported from https://github.com/mafintosh/pump with
// permission from the author, Mathias Buus (@mafintosh).
'use strict';
var eos;
function once(callback) {
var called = false;
return function () {
if (called) return;
called = true;
callback.apply(void 0, arguments);
};
}
var _require$codes = require('../../../errors').codes,
ERR_MISSING_ARGS = _require$codes.ERR_MISSING_ARGS,
ERR_STREAM_DESTROYED = _require$codes.ERR_STREAM_DESTROYED;
function noop(err) {
// Rethrow the error if it exists to avoid swallowing it
if (err) throw err;
}
function isRequest(stream) {
return stream.setHeader && typeof stream.abort === 'function';
}
function destroyer(stream, reading, writing, callback) {
callback = once(callback);
var closed = false;
stream.on('close', function () {
closed = true;
});
if (eos === undefined) eos = require('./end-of-stream');
eos(stream, {
readable: reading,
writable: writing
}, function (err) {
if (err) return callback(err);
closed = true;
callback();
});
var destroyed = false;
return function (err) {
if (closed) return;
if (destroyed) return;
destroyed = true;
// request.destroy just do .end - .abort is what we want
if (isRequest(stream)) return stream.abort();
if (typeof stream.destroy === 'function') return stream.destroy();
callback(err || new ERR_STREAM_DESTROYED('pipe'));
};
}
function call(fn) {
fn();
}
function pipe(from, to) {
return from.pipe(to);
}
function popCallback(streams) {
if (!streams.length) return noop;
if (typeof streams[streams.length - 1] !== 'function') return noop;
return streams.pop();
}
function pipeline() {
for (var _len = arguments.length, streams = new Array(_len), _key = 0; _key < _len; _key++) {
streams[_key] = arguments[_key];
}
var callback = popCallback(streams);
if (Array.isArray(streams[0])) streams = streams[0];
if (streams.length < 2) {
throw new ERR_MISSING_ARGS('streams');
}
var error;
var destroys = streams.map(function (stream, i) {
var reading = i < streams.length - 1;
var writing = i > 0;
return destroyer(stream, reading, writing, function (err) {
if (!error) error = err;
if (err) destroys.forEach(call);
if (reading) return;
destroys.forEach(call);
callback(error);
});
});
return streams.reduce(pipe);
}
module.exports = pipeline;
},{"../../../errors":25,"./end-of-stream":34}],37:[function(require,module,exports){
'use strict';
var ERR_INVALID_OPT_VALUE = require('../../../errors').codes.ERR_INVALID_OPT_VALUE;
function highWaterMarkFrom(options, isDuplex, duplexKey) {
return options.highWaterMark != null ? options.highWaterMark : isDuplex ? options[duplexKey] : null;
}
function getHighWaterMark(state, options, duplexKey, isDuplex) {
var hwm = highWaterMarkFrom(options, isDuplex, duplexKey);
if (hwm != null) {
if (!(isFinite(hwm) && Math.floor(hwm) === hwm) || hwm < 0) {
var name = isDuplex ? duplexKey : 'highWaterMark';
throw new ERR_INVALID_OPT_VALUE(name, hwm);
}
return Math.floor(hwm);
}
// Default value
return state.objectMode ? 16 : 16 * 1024;
}
module.exports = {
getHighWaterMark: getHighWaterMark
};
},{"../../../errors":25}],38:[function(require,module,exports){
module.exports = require('events').EventEmitter;
},{"events":19}],39:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
'use strict';
/*<replacement>*/
var Buffer = require('safe-buffer').Buffer;
/*</replacement>*/
var isEncoding = Buffer.isEncoding || function (encoding) {
encoding = '' + encoding;
switch (encoding && encoding.toLowerCase()) {
case 'hex':case 'utf8':case 'utf-8':case 'ascii':case 'binary':case 'base64':case 'ucs2':case 'ucs-2':case 'utf16le':case 'utf-16le':case 'raw':
return true;
default:
return false;
}
};
function _normalizeEncoding(enc) {
if (!enc) return 'utf8';
var retried;
while (true) {
switch (enc) {
case 'utf8':
case 'utf-8':
return 'utf8';
case 'ucs2':
case 'ucs-2':
case 'utf16le':
case 'utf-16le':
return 'utf16le';
case 'latin1':
case 'binary':
return 'latin1';
case 'base64':
case 'ascii':
case 'hex':
return enc;
default:
if (retried) return; // undefined
enc = ('' + enc).toLowerCase();
retried = true;
}
}
};
// Do not cache `Buffer.isEncoding` when checking encoding names as some
// modules monkey-patch it to support additional encodings
function normalizeEncoding(enc) {
var nenc = _normalizeEncoding(enc);
if (typeof nenc !== 'string' && (Buffer.isEncoding === isEncoding || !isEncoding(enc))) throw new Error('Unknown encoding: ' + enc);
return nenc || enc;
}
// StringDecoder provides an interface for efficiently splitting a series of
// buffers into a series of JS strings without breaking apart multi-byte
// characters.
exports.StringDecoder = StringDecoder;
function StringDecoder(encoding) {
this.encoding = normalizeEncoding(encoding);
var nb;
switch (this.encoding) {
case 'utf16le':
this.text = utf16Text;
this.end = utf16End;
nb = 4;
break;
case 'utf8':
this.fillLast = utf8FillLast;
nb = 4;
break;
case 'base64':
this.text = base64Text;
this.end = base64End;
nb = 3;
break;
default:
this.write = simpleWrite;
this.end = simpleEnd;
return;
}
this.lastNeed = 0;
this.lastTotal = 0;
this.lastChar = Buffer.allocUnsafe(nb);
}
StringDecoder.prototype.write = function (buf) {
if (buf.length === 0) return '';
var r;
var i;
if (this.lastNeed) {
r = this.fillLast(buf);
if (r === undefined) return '';
i = this.lastNeed;
this.lastNeed = 0;
} else {
i = 0;
}
if (i < buf.length) return r ? r + this.text(buf, i) : this.text(buf, i);
return r || '';
};
StringDecoder.prototype.end = utf8End;
// Returns only complete characters in a Buffer
StringDecoder.prototype.text = utf8Text;
// Attempts to complete a partial non-UTF-8 character using bytes from a Buffer
StringDecoder.prototype.fillLast = function (buf) {
if (this.lastNeed <= buf.length) {
buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, this.lastNeed);
return this.lastChar.toString(this.encoding, 0, this.lastTotal);
}
buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, buf.length);
this.lastNeed -= buf.length;
};
// Checks the type of a UTF-8 byte, whether it's ASCII, a leading byte, or a
// continuation byte. If an invalid byte is detected, -2 is returned.
function utf8CheckByte(byte) {
if (byte <= 0x7F) return 0;else if (byte >> 5 === 0x06) return 2;else if (byte >> 4 === 0x0E) return 3;else if (byte >> 3 === 0x1E) return 4;
return byte >> 6 === 0x02 ? -1 : -2;
}
// Checks at most 3 bytes at the end of a Buffer in order to detect an
// incomplete multi-byte UTF-8 character. The total number of bytes (2, 3, or 4)
// needed to complete the UTF-8 character (if applicable) are returned.
function utf8CheckIncomplete(self, buf, i) {
var j = buf.length - 1;
if (j < i) return 0;
var nb = utf8CheckByte(buf[j]);
if (nb >= 0) {
if (nb > 0) self.lastNeed = nb - 1;
return nb;
}
if (--j < i || nb === -2) return 0;
nb = utf8CheckByte(buf[j]);
if (nb >= 0) {
if (nb > 0) self.lastNeed = nb - 2;
return nb;
}
if (--j < i || nb === -2) return 0;
nb = utf8CheckByte(buf[j]);
if (nb >= 0) {
if (nb > 0) {
if (nb === 2) nb = 0;else self.lastNeed = nb - 3;
}
return nb;
}
return 0;
}
// Validates as many continuation bytes for a multi-byte UTF-8 character as
// needed or are available. If we see a non-continuation byte where we expect
// one, we "replace" the validated continuation bytes we've seen so far with
// a single UTF-8 replacement character ('\ufffd'), to match v8's UTF-8 decoding
// behavior. The continuation byte check is included three times in the case
// where all of the continuation bytes for a character exist in the same buffer.
// It is also done this way as a slight performance increase instead of using a
// loop.
function utf8CheckExtraBytes(self, buf, p) {
if ((buf[0] & 0xC0) !== 0x80) {
self.lastNeed = 0;
return '\ufffd';
}
if (self.lastNeed > 1 && buf.length > 1) {
if ((buf[1] & 0xC0) !== 0x80) {
self.lastNeed = 1;
return '\ufffd';
}
if (self.lastNeed > 2 && buf.length > 2) {
if ((buf[2] & 0xC0) !== 0x80) {
self.lastNeed = 2;
return '\ufffd';
}
}
}
}
// Attempts to complete a multi-byte UTF-8 character using bytes from a Buffer.
function utf8FillLast(buf) {
var p = this.lastTotal - this.lastNeed;
var r = utf8CheckExtraBytes(this, buf, p);
if (r !== undefined) return r;
if (this.lastNeed <= buf.length) {
buf.copy(this.lastChar, p, 0, this.lastNeed);
return this.lastChar.toString(this.encoding, 0, this.lastTotal);
}
buf.copy(this.lastChar, p, 0, buf.length);
this.lastNeed -= buf.length;
}
// Returns all complete UTF-8 characters in a Buffer. If the Buffer ended on a
// partial character, the character's bytes are buffered until the required
// number of bytes are available.
function utf8Text(buf, i) {
var total = utf8CheckIncomplete(this, buf, i);
if (!this.lastNeed) return buf.toString('utf8', i);
this.lastTotal = total;
var end = buf.length - (total - this.lastNeed);
buf.copy(this.lastChar, 0, end);
return buf.toString('utf8', i, end);
}
// For UTF-8, a replacement character is added when ending on a partial
// character.
function utf8End(buf) {
var r = buf && buf.length ? this.write(buf) : '';
if (this.lastNeed) return r + '\ufffd';
return r;
}
// UTF-16LE typically needs two bytes per character, but even if we have an even
// number of bytes available, we need to check if we end on a leading/high
// surrogate. In that case, we need to wait for the next two bytes in order to
// decode the last character properly.
function utf16Text(buf, i) {
if ((buf.length - i) % 2 === 0) {
var r = buf.toString('utf16le', i);
if (r) {
var c = r.charCodeAt(r.length - 1);
if (c >= 0xD800 && c <= 0xDBFF) {
this.lastNeed = 2;
this.lastTotal = 4;
this.lastChar[0] = buf[buf.length - 2];
this.lastChar[1] = buf[buf.length - 1];
return r.slice(0, -1);
}
}
return r;
}
this.lastNeed = 1;
this.lastTotal = 2;
this.lastChar[0] = buf[buf.length - 1];
return buf.toString('utf16le', i, buf.length - 1);
}
// For UTF-16LE we do not explicitly append special replacement characters if we
// end on a partial character, we simply let v8 handle that.
function utf16End(buf) {
var r = buf && buf.length ? this.write(buf) : '';
if (this.lastNeed) {
var end = this.lastTotal - this.lastNeed;
return r + this.lastChar.toString('utf16le', 0, end);
}
return r;
}
function base64Text(buf, i) {
var n = (buf.length - i) % 3;
if (n === 0) return buf.toString('base64', i);
this.lastNeed = 3 - n;
this.lastTotal = 3;
if (n === 1) {
this.lastChar[0] = buf[buf.length - 1];
} else {
this.lastChar[0] = buf[buf.length - 2];
this.lastChar[1] = buf[buf.length - 1];
}
return buf.toString('base64', i, buf.length - n);
}
function base64End(buf) {
var r = buf && buf.length ? this.write(buf) : '';
if (this.lastNeed) return r + this.lastChar.toString('base64', 0, 3 - this.lastNeed);
return r;
}
// Pass bytes on through for single-byte encodings (e.g. ascii, latin1, hex)
function simpleWrite(buf) {
return buf.toString(this.encoding);
}
function simpleEnd(buf) {
return buf && buf.length ? this.write(buf) : '';
}
},{"safe-buffer":23}],40:[function(require,module,exports){
(function (setImmediate,clearImmediate){(function (){
var nextTick = require('process/browser.js').nextTick;
var apply = Function.prototype.apply;
var slice = Array.prototype.slice;
var immediateIds = {};
var nextImmediateId = 0;
// DOM APIs, for completeness
exports.setTimeout = function() {
return new Timeout(apply.call(setTimeout, window, arguments), clearTimeout);
};
exports.setInterval = function() {
return new Timeout(apply.call(setInterval, window, arguments), clearInterval);
};
exports.clearTimeout =
exports.clearInterval = function(timeout) { timeout.close(); };
function Timeout(id, clearFn) {
this._id = id;
this._clearFn = clearFn;
}
Timeout.prototype.unref = Timeout.prototype.ref = function() {};
Timeout.prototype.close = function() {
this._clearFn.call(window, this._id);
};
// Does not start the time, just sets up the members needed.
exports.enroll = function(item, msecs) {
clearTimeout(item._idleTimeoutId);
item._idleTimeout = msecs;
};
exports.unenroll = function(item) {
clearTimeout(item._idleTimeoutId);
item._idleTimeout = -1;
};
exports._unrefActive = exports.active = function(item) {
clearTimeout(item._idleTimeoutId);
var msecs = item._idleTimeout;
if (msecs >= 0) {
item._idleTimeoutId = setTimeout(function onTimeout() {
if (item._onTimeout)
item._onTimeout();
}, msecs);
}
};
// That's not how node.js implements it but the exposed api is the same.
exports.setImmediate = typeof setImmediate === "function" ? setImmediate : function(fn) {
var id = nextImmediateId++;
var args = arguments.length < 2 ? false : slice.call(arguments, 1);
immediateIds[id] = true;
nextTick(function onNextTick() {
if (immediateIds[id]) {
// fn.call() is faster so we optimize for the common use-case
// @see http://jsperf.com/call-apply-segu
if (args) {
fn.apply(null, args);
} else {
fn.call(null);
}
// Prevent ids from leaking
exports.clearImmediate(id);
}
});
return id;
};
exports.clearImmediate = typeof clearImmediate === "function" ? clearImmediate : function(id) {
delete immediateIds[id];
};
}).call(this)}).call(this,require("timers").setImmediate,require("timers").clearImmediate)
},{"process/browser.js":22,"timers":40}],41:[function(require,module,exports){
(function (global){(function (){
/**
* Module exports.
*/
module.exports = deprecate;
/**
* Mark that a method should not be used.
* Returns a modified function which warns once by default.
*
* If `localStorage.noDeprecation = true` is set, then it is a no-op.
*
* If `localStorage.throwDeprecation = true` is set, then deprecated functions
* will throw an Error when invoked.
*
* If `localStorage.traceDeprecation = true` is set, then deprecated functions
* will invoke `console.trace()` instead of `console.error()`.
*
* @param {Function} fn - the function to deprecate
* @param {String} msg - the string to print to the console when `fn` is invoked
* @returns {Function} a new "deprecated" version of `fn`
* @api public
*/
function deprecate (fn, msg) {
if (config('noDeprecation')) {
return fn;
}
var warned = false;
function deprecated() {
if (!warned) {
if (config('throwDeprecation')) {
throw new Error(msg);
} else if (config('traceDeprecation')) {
console.trace(msg);
} else {
console.warn(msg);
}
warned = true;
}
return fn.apply(this, arguments);
}
return deprecated;
}
/**
* Checks `localStorage` for boolean values for the given `name`.
*
* @param {String} name
* @returns {Boolean}
* @api private
*/
function config (name) {
// accessing global.localStorage can trigger a DOMException in sandboxed iframes
try {
if (!global.localStorage) return false;
} catch (_) {
return false;
}
var val = global.localStorage[name];
if (null == val) return false;
return String(val).toLowerCase() === 'true';
}
}).call(this)}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{}]},{},[1])(1)
});
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