From fa6b1996ff1ace2a26a14b7e0b32e1e226d07f58 Mon Sep 17 00:00:00 2001 From: nextcloud-command Date: Sun, 18 Aug 2024 03:12:10 +0000 Subject: [PATCH] fix(deps): fix npm audit Signed-off-by: GitHub --- js/recommendations-main.js | 4 +- js/recommendations-main.js.map | 2 +- package-lock.json | 102 ++++++++++++++++----------------- 3 files changed, 54 insertions(+), 54 deletions(-) diff --git a/js/recommendations-main.js b/js/recommendations-main.js index 3d3b53d5..168154ed 100644 --- a/js/recommendations-main.js +++ b/js/recommendations-main.js @@ -1,3 +1,3 @@ /*! 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r=n(9781),o=n(1702),i=n(6916),a=n(7293),s=n(1956),u=n(5181),c=n(5296),l=n(7908),f=n(8361),p=Object.assign,h=Object.defineProperty,d=o([].concat);t.exports=!p||a((function(){if(r&&1!==p({b:1},p(h({},"a",{enumerable:!0,get:function(){h(this,"b",{value:3,enumerable:!1})}}),{b:2})).b)return!0;var t={},e={},n=Symbol(),o="abcdefghijklmnopqrst";return t[n]=7,o.split("").forEach((function(t){e[t]=t})),7!=p({},t)[n]||s(p({},e)).join("")!=o}))?function(t,e){for(var n=l(t),o=arguments.length,a=1,p=u.f,h=c.f;o>a;)for(var y,v=f(arguments[a++]),g=p?d(s(v),p(v)):s(v),m=g.length,b=0;m>b;)y=g[b++],r&&!i(h,v,y)||(n[y]=v[y]);return n}:p},30:(t,e,n)=>{var r,o=n(9670),i=n(6048),a=n(748),s=n(3501),u=n(490),c=n(317),l=n(6200),f=l("IE_PROTO"),p=function(){},h=function(t){return"\\n\\n\\n\"],\"sourceRoot\":\"\"}]);\n// Exports\nexport default ___CSS_LOADER_EXPORT___;\n","\"use strict\";\n\n/*\n MIT License http://www.opensource.org/licenses/mit-license.php\n Author Tobias Koppers @sokra\n*/\nmodule.exports = function (cssWithMappingToString) {\n var list = [];\n\n // return the list of modules as css string\n list.toString = function toString() {\n return this.map(function (item) {\n var content = \"\";\n var needLayer = typeof item[5] !== \"undefined\";\n if (item[4]) {\n content += \"@supports (\".concat(item[4], \") {\");\n }\n if (item[2]) {\n content += \"@media \".concat(item[2], \" {\");\n }\n if (needLayer) {\n content += \"@layer\".concat(item[5].length > 0 ? \" \".concat(item[5]) : \"\", \" {\");\n }\n content += cssWithMappingToString(item);\n if (needLayer) {\n content += \"}\";\n }\n if (item[2]) {\n content += \"}\";\n }\n if (item[4]) {\n content += \"}\";\n }\n return content;\n }).join(\"\");\n };\n\n // import a list of modules into the list\n list.i = function i(modules, media, dedupe, supports, layer) {\n if (typeof modules === \"string\") {\n modules = [[null, modules, undefined]];\n }\n var alreadyImportedModules = {};\n if (dedupe) {\n for (var k = 0; k < this.length; k++) {\n var id = this[k][0];\n if (id != null) {\n alreadyImportedModules[id] = true;\n }\n }\n }\n for (var _k = 0; _k < modules.length; _k++) {\n var item = [].concat(modules[_k]);\n if (dedupe && alreadyImportedModules[item[0]]) {\n continue;\n }\n if (typeof layer !== \"undefined\") {\n if (typeof item[5] === \"undefined\") {\n item[5] = layer;\n } else {\n item[1] = \"@layer\".concat(item[5].length > 0 ? \" \".concat(item[5]) : \"\", \" {\").concat(item[1], \"}\");\n item[5] = layer;\n }\n }\n if (media) {\n if (!item[2]) {\n item[2] = media;\n } else {\n item[1] = \"@media \".concat(item[2], \" {\").concat(item[1], \"}\");\n item[2] = media;\n }\n }\n if (supports) {\n if (!item[4]) {\n item[4] = \"\".concat(supports);\n } else {\n item[1] = \"@supports (\".concat(item[4], \") {\").concat(item[1], \"}\");\n item[4] = supports;\n }\n }\n list.push(item);\n }\n };\n return list;\n};","\"use strict\";\n\nmodule.exports = function (item) {\n var content = item[1];\n var cssMapping = item[3];\n if (!cssMapping) {\n return content;\n }\n if (typeof btoa === \"function\") {\n var base64 = btoa(unescape(encodeURIComponent(JSON.stringify(cssMapping))));\n var data = \"sourceMappingURL=data:application/json;charset=utf-8;base64,\".concat(base64);\n var sourceMapping = \"/*# \".concat(data, \" */\");\n return [content].concat([sourceMapping]).join(\"\\n\");\n }\n return [content].join(\"\\n\");\n};","'use strict';\n\nvar keys = require('object-keys');\nvar hasSymbols = typeof Symbol === 'function' && typeof Symbol('foo') === 'symbol';\n\nvar toStr = Object.prototype.toString;\nvar concat = Array.prototype.concat;\nvar origDefineProperty = Object.defineProperty;\n\nvar isFunction = function (fn) {\n\treturn typeof fn === 'function' && toStr.call(fn) === '[object Function]';\n};\n\nvar hasPropertyDescriptors = require('has-property-descriptors')();\n\nvar supportsDescriptors = origDefineProperty && hasPropertyDescriptors;\n\nvar defineProperty = function (object, name, value, predicate) {\n\tif (name in object && (!isFunction(predicate) || !predicate())) {\n\t\treturn;\n\t}\n\tif (supportsDescriptors) {\n\t\torigDefineProperty(object, name, {\n\t\t\tconfigurable: true,\n\t\t\tenumerable: false,\n\t\t\tvalue: value,\n\t\t\twritable: true\n\t\t});\n\t} else {\n\t\tobject[name] = value; // eslint-disable-line no-param-reassign\n\t}\n};\n\nvar defineProperties = function (object, map) {\n\tvar predicates = arguments.length > 2 ? arguments[2] : {};\n\tvar props = keys(map);\n\tif (hasSymbols) {\n\t\tprops = concat.call(props, Object.getOwnPropertySymbols(map));\n\t}\n\tfor (var i = 0; i < props.length; i += 1) {\n\t\tdefineProperty(object, props[i], map[props[i]], predicates[props[i]]);\n\t}\n};\n\ndefineProperties.supportsDescriptors = !!supportsDescriptors;\n\nmodule.exports = defineProperties;\n","/*! @license DOMPurify 3.0.5 | (c) Cure53 and other contributors | Released under the Apache license 2.0 and Mozilla Public License 2.0 | github.com/cure53/DOMPurify/blob/3.0.5/LICENSE */\n\n(function (global, factory) {\n typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :\n typeof define === 'function' && define.amd ? define(factory) :\n (global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.DOMPurify = factory());\n})(this, (function () { 'use strict';\n\n const {\n entries,\n setPrototypeOf,\n isFrozen,\n getPrototypeOf,\n getOwnPropertyDescriptor\n } = Object;\n let {\n freeze,\n seal,\n create\n } = Object; // eslint-disable-line import/no-mutable-exports\n\n let {\n apply,\n construct\n } = typeof Reflect !== 'undefined' && Reflect;\n\n if (!apply) {\n apply = function apply(fun, thisValue, args) {\n return fun.apply(thisValue, args);\n };\n }\n\n if (!freeze) {\n freeze = function freeze(x) {\n return x;\n };\n }\n\n if (!seal) {\n seal = function seal(x) {\n return x;\n };\n }\n\n if (!construct) {\n construct = function construct(Func, args) {\n return new Func(...args);\n };\n }\n\n const arrayForEach = unapply(Array.prototype.forEach);\n const arrayPop = unapply(Array.prototype.pop);\n const arrayPush = unapply(Array.prototype.push);\n const stringToLowerCase = unapply(String.prototype.toLowerCase);\n const stringToString = unapply(String.prototype.toString);\n const stringMatch = unapply(String.prototype.match);\n const stringReplace = unapply(String.prototype.replace);\n const stringIndexOf = unapply(String.prototype.indexOf);\n const stringTrim = unapply(String.prototype.trim);\n const regExpTest = unapply(RegExp.prototype.test);\n const typeErrorCreate = unconstruct(TypeError);\n function unapply(func) {\n return function (thisArg) {\n for (var _len = arguments.length, args = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {\n args[_key - 1] = arguments[_key];\n }\n\n return apply(func, thisArg, args);\n };\n }\n function unconstruct(func) {\n return function () {\n for (var _len2 = arguments.length, args = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {\n args[_key2] = arguments[_key2];\n }\n\n return construct(func, args);\n };\n }\n /* Add properties to a lookup table */\n\n function addToSet(set, array, transformCaseFunc) {\n var _transformCaseFunc;\n\n transformCaseFunc = (_transformCaseFunc = transformCaseFunc) !== null && _transformCaseFunc !== void 0 ? _transformCaseFunc : stringToLowerCase;\n\n if (setPrototypeOf) {\n // Make 'in' and truthy checks like Boolean(set.constructor)\n // independent of any properties defined on Object.prototype.\n // Prevent prototype setters from intercepting set as a this value.\n setPrototypeOf(set, null);\n }\n\n let l = array.length;\n\n while (l--) {\n let element = array[l];\n\n if (typeof element === 'string') {\n const lcElement = transformCaseFunc(element);\n\n if (lcElement !== element) {\n // Config presets (e.g. tags.js, attrs.js) are immutable.\n if (!isFrozen(array)) {\n array[l] = lcElement;\n }\n\n element = lcElement;\n }\n }\n\n set[element] = true;\n }\n\n return set;\n }\n /* Shallow clone an object */\n\n function clone(object) {\n const newObject = create(null);\n\n for (const [property, value] of entries(object)) {\n newObject[property] = value;\n }\n\n return newObject;\n }\n /* This method automatically checks if the prop is function\n * or getter and behaves accordingly. */\n\n function lookupGetter(object, prop) {\n while (object !== null) {\n const desc = getOwnPropertyDescriptor(object, prop);\n\n if (desc) {\n if (desc.get) {\n return unapply(desc.get);\n }\n\n if (typeof desc.value === 'function') {\n return unapply(desc.value);\n }\n }\n\n object = getPrototypeOf(object);\n }\n\n function fallbackValue(element) {\n console.warn('fallback value for', element);\n return null;\n }\n\n return fallbackValue;\n }\n\n const html$1 = freeze(['a', 'abbr', 'acronym', 'address', 'area', 'article', 'aside', 'audio', 'b', 'bdi', 'bdo', 'big', 'blink', 'blockquote', 'body', 'br', 'button', 'canvas', 'caption', 'center', 'cite', 'code', 'col', 'colgroup', 'content', 'data', 'datalist', 'dd', 'decorator', 'del', 'details', 'dfn', 'dialog', 'dir', 'div', 'dl', 'dt', 'element', 'em', 'fieldset', 'figcaption', 'figure', 'font', 'footer', 'form', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'head', 'header', 'hgroup', 'hr', 'html', 'i', 'img', 'input', 'ins', 'kbd', 'label', 'legend', 'li', 'main', 'map', 'mark', 'marquee', 'menu', 'menuitem', 'meter', 'nav', 'nobr', 'ol', 'optgroup', 'option', 'output', 'p', 'picture', 'pre', 'progress', 'q', 'rp', 'rt', 'ruby', 's', 'samp', 'section', 'select', 'shadow', 'small', 'source', 'spacer', 'span', 'strike', 'strong', 'style', 'sub', 'summary', 'sup', 'table', 'tbody', 'td', 'template', 'textarea', 'tfoot', 'th', 'thead', 'time', 'tr', 'track', 'tt', 'u', 'ul', 'var', 'video', 'wbr']); // SVG\n\n const svg$1 = freeze(['svg', 'a', 'altglyph', 'altglyphdef', 'altglyphitem', 'animatecolor', 'animatemotion', 'animatetransform', 'circle', 'clippath', 'defs', 'desc', 'ellipse', 'filter', 'font', 'g', 'glyph', 'glyphref', 'hkern', 'image', 'line', 'lineargradient', 'marker', 'mask', 'metadata', 'mpath', 'path', 'pattern', 'polygon', 'polyline', 'radialgradient', 'rect', 'stop', 'style', 'switch', 'symbol', 'text', 'textpath', 'title', 'tref', 'tspan', 'view', 'vkern']);\n const svgFilters = freeze(['feBlend', 'feColorMatrix', 'feComponentTransfer', 'feComposite', 'feConvolveMatrix', 'feDiffuseLighting', 'feDisplacementMap', 'feDistantLight', 'feDropShadow', 'feFlood', 'feFuncA', 'feFuncB', 'feFuncG', 'feFuncR', 'feGaussianBlur', 'feImage', 'feMerge', 'feMergeNode', 'feMorphology', 'feOffset', 'fePointLight', 'feSpecularLighting', 'feSpotLight', 'feTile', 'feTurbulence']); // List of SVG elements that are disallowed by default.\n // We still need to know them so that we can do namespace\n // checks properly in case one wants to add them to\n // allow-list.\n\n const svgDisallowed = freeze(['animate', 'color-profile', 'cursor', 'discard', 'font-face', 'font-face-format', 'font-face-name', 'font-face-src', 'font-face-uri', 'foreignobject', 'hatch', 'hatchpath', 'mesh', 'meshgradient', 'meshpatch', 'meshrow', 'missing-glyph', 'script', 'set', 'solidcolor', 'unknown', 'use']);\n const mathMl$1 = freeze(['math', 'menclose', 'merror', 'mfenced', 'mfrac', 'mglyph', 'mi', 'mlabeledtr', 'mmultiscripts', 'mn', 'mo', 'mover', 'mpadded', 'mphantom', 'mroot', 'mrow', 'ms', 'mspace', 'msqrt', 'mstyle', 'msub', 'msup', 'msubsup', 'mtable', 'mtd', 'mtext', 'mtr', 'munder', 'munderover', 'mprescripts']); // Similarly to SVG, we want to know all MathML elements,\n // even those that we disallow by default.\n\n const mathMlDisallowed = freeze(['maction', 'maligngroup', 'malignmark', 'mlongdiv', 'mscarries', 'mscarry', 'msgroup', 'mstack', 'msline', 'msrow', 'semantics', 'annotation', 'annotation-xml', 'mprescripts', 'none']);\n const text = freeze(['#text']);\n\n const html = freeze(['accept', 'action', 'align', 'alt', 'autocapitalize', 'autocomplete', 'autopictureinpicture', 'autoplay', 'background', 'bgcolor', 'border', 'capture', 'cellpadding', 'cellspacing', 'checked', 'cite', 'class', 'clear', 'color', 'cols', 'colspan', 'controls', 'controlslist', 'coords', 'crossorigin', 'datetime', 'decoding', 'default', 'dir', 'disabled', 'disablepictureinpicture', 'disableremoteplayback', 'download', 'draggable', 'enctype', 'enterkeyhint', 'face', 'for', 'headers', 'height', 'hidden', 'high', 'href', 'hreflang', 'id', 'inputmode', 'integrity', 'ismap', 'kind', 'label', 'lang', 'list', 'loading', 'loop', 'low', 'max', 'maxlength', 'media', 'method', 'min', 'minlength', 'multiple', 'muted', 'name', 'nonce', 'noshade', 'novalidate', 'nowrap', 'open', 'optimum', 'pattern', 'placeholder', 'playsinline', 'poster', 'preload', 'pubdate', 'radiogroup', 'readonly', 'rel', 'required', 'rev', 'reversed', 'role', 'rows', 'rowspan', 'spellcheck', 'scope', 'selected', 'shape', 'size', 'sizes', 'span', 'srclang', 'start', 'src', 'srcset', 'step', 'style', 'summary', 'tabindex', 'title', 'translate', 'type', 'usemap', 'valign', 'value', 'width', 'xmlns', 'slot']);\n const svg = freeze(['accent-height', 'accumulate', 'additive', 'alignment-baseline', 'ascent', 'attributename', 'attributetype', 'azimuth', 'basefrequency', 'baseline-shift', 'begin', 'bias', 'by', 'class', 'clip', 'clippathunits', 'clip-path', 'clip-rule', 'color', 'color-interpolation', 'color-interpolation-filters', 'color-profile', 'color-rendering', 'cx', 'cy', 'd', 'dx', 'dy', 'diffuseconstant', 'direction', 'display', 'divisor', 'dur', 'edgemode', 'elevation', 'end', 'fill', 'fill-opacity', 'fill-rule', 'filter', 'filterunits', 'flood-color', 'flood-opacity', 'font-family', 'font-size', 'font-size-adjust', 'font-stretch', 'font-style', 'font-variant', 'font-weight', 'fx', 'fy', 'g1', 'g2', 'glyph-name', 'glyphref', 'gradientunits', 'gradienttransform', 'height', 'href', 'id', 'image-rendering', 'in', 'in2', 'k', 'k1', 'k2', 'k3', 'k4', 'kerning', 'keypoints', 'keysplines', 'keytimes', 'lang', 'lengthadjust', 'letter-spacing', 'kernelmatrix', 'kernelunitlength', 'lighting-color', 'local', 'marker-end', 'marker-mid', 'marker-start', 'markerheight', 'markerunits', 'markerwidth', 'maskcontentunits', 'maskunits', 'max', 'mask', 'media', 'method', 'mode', 'min', 'name', 'numoctaves', 'offset', 'operator', 'opacity', 'order', 'orient', 'orientation', 'origin', 'overflow', 'paint-order', 'path', 'pathlength', 'patterncontentunits', 'patterntransform', 'patternunits', 'points', 'preservealpha', 'preserveaspectratio', 'primitiveunits', 'r', 'rx', 'ry', 'radius', 'refx', 'refy', 'repeatcount', 'repeatdur', 'restart', 'result', 'rotate', 'scale', 'seed', 'shape-rendering', 'specularconstant', 'specularexponent', 'spreadmethod', 'startoffset', 'stddeviation', 'stitchtiles', 'stop-color', 'stop-opacity', 'stroke-dasharray', 'stroke-dashoffset', 'stroke-linecap', 'stroke-linejoin', 'stroke-miterlimit', 'stroke-opacity', 'stroke', 'stroke-width', 'style', 'surfacescale', 'systemlanguage', 'tabindex', 'targetx', 'targety', 'transform', 'transform-origin', 'text-anchor', 'text-decoration', 'text-rendering', 'textlength', 'type', 'u1', 'u2', 'unicode', 'values', 'viewbox', 'visibility', 'version', 'vert-adv-y', 'vert-origin-x', 'vert-origin-y', 'width', 'word-spacing', 'wrap', 'writing-mode', 'xchannelselector', 'ychannelselector', 'x', 'x1', 'x2', 'xmlns', 'y', 'y1', 'y2', 'z', 'zoomandpan']);\n const mathMl = freeze(['accent', 'accentunder', 'align', 'bevelled', 'close', 'columnsalign', 'columnlines', 'columnspan', 'denomalign', 'depth', 'dir', 'display', 'displaystyle', 'encoding', 'fence', 'frame', 'height', 'href', 'id', 'largeop', 'length', 'linethickness', 'lspace', 'lquote', 'mathbackground', 'mathcolor', 'mathsize', 'mathvariant', 'maxsize', 'minsize', 'movablelimits', 'notation', 'numalign', 'open', 'rowalign', 'rowlines', 'rowspacing', 'rowspan', 'rspace', 'rquote', 'scriptlevel', 'scriptminsize', 'scriptsizemultiplier', 'selection', 'separator', 'separators', 'stretchy', 'subscriptshift', 'supscriptshift', 'symmetric', 'voffset', 'width', 'xmlns']);\n const xml = freeze(['xlink:href', 'xml:id', 'xlink:title', 'xml:space', 'xmlns:xlink']);\n\n const MUSTACHE_EXPR = seal(/\\{\\{[\\w\\W]*|[\\w\\W]*\\}\\}/gm); // Specify template detection regex for SAFE_FOR_TEMPLATES mode\n\n const ERB_EXPR = seal(/<%[\\w\\W]*|[\\w\\W]*%>/gm);\n const TMPLIT_EXPR = seal(/\\${[\\w\\W]*}/gm);\n const DATA_ATTR = seal(/^data-[\\-\\w.\\u00B7-\\uFFFF]/); // eslint-disable-line no-useless-escape\n\n const ARIA_ATTR = seal(/^aria-[\\-\\w]+$/); // eslint-disable-line no-useless-escape\n\n const IS_ALLOWED_URI = seal(/^(?:(?:(?:f|ht)tps?|mailto|tel|callto|sms|cid|xmpp):|[^a-z]|[a-z+.\\-]+(?:[^a-z+.\\-:]|$))/i // eslint-disable-line no-useless-escape\n );\n const IS_SCRIPT_OR_DATA = seal(/^(?:\\w+script|data):/i);\n const ATTR_WHITESPACE = seal(/[\\u0000-\\u0020\\u00A0\\u1680\\u180E\\u2000-\\u2029\\u205F\\u3000]/g // eslint-disable-line no-control-regex\n );\n const DOCTYPE_NAME = seal(/^html$/i);\n\n var EXPRESSIONS = /*#__PURE__*/Object.freeze({\n __proto__: null,\n MUSTACHE_EXPR: MUSTACHE_EXPR,\n ERB_EXPR: ERB_EXPR,\n TMPLIT_EXPR: TMPLIT_EXPR,\n DATA_ATTR: DATA_ATTR,\n ARIA_ATTR: ARIA_ATTR,\n IS_ALLOWED_URI: IS_ALLOWED_URI,\n IS_SCRIPT_OR_DATA: IS_SCRIPT_OR_DATA,\n ATTR_WHITESPACE: ATTR_WHITESPACE,\n DOCTYPE_NAME: DOCTYPE_NAME\n });\n\n const getGlobal = () => typeof window === 'undefined' ? null : window;\n /**\n * Creates a no-op policy for internal use only.\n * Don't export this function outside this module!\n * @param {?TrustedTypePolicyFactory} trustedTypes The policy factory.\n * @param {HTMLScriptElement} purifyHostElement The Script element used to load DOMPurify (to determine policy name suffix).\n * @return {?TrustedTypePolicy} The policy created (or null, if Trusted Types\n * are not supported or creating the policy failed).\n */\n\n\n const _createTrustedTypesPolicy = function _createTrustedTypesPolicy(trustedTypes, purifyHostElement) {\n if (typeof trustedTypes !== 'object' || typeof trustedTypes.createPolicy !== 'function') {\n return null;\n } // Allow the callers to control the unique policy name\n // by adding a data-tt-policy-suffix to the script element with the DOMPurify.\n // Policy creation with duplicate names throws in Trusted Types.\n\n\n let suffix = null;\n const ATTR_NAME = 'data-tt-policy-suffix';\n\n if (purifyHostElement && purifyHostElement.hasAttribute(ATTR_NAME)) {\n suffix = purifyHostElement.getAttribute(ATTR_NAME);\n }\n\n const policyName = 'dompurify' + (suffix ? '#' + suffix : '');\n\n try {\n return trustedTypes.createPolicy(policyName, {\n createHTML(html) {\n return html;\n },\n\n createScriptURL(scriptUrl) {\n return scriptUrl;\n }\n\n });\n } catch (_) {\n // Policy creation failed (most likely another DOMPurify script has\n // already run). Skip creating the policy, as this will only cause errors\n // if TT are enforced.\n console.warn('TrustedTypes policy ' + policyName + ' could not be created.');\n return null;\n }\n };\n\n function createDOMPurify() {\n let window = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : getGlobal();\n\n const DOMPurify = root => createDOMPurify(root);\n /**\n * Version label, exposed for easier checks\n * if DOMPurify is up to date or not\n */\n\n\n DOMPurify.version = '3.0.5';\n /**\n * Array of elements that DOMPurify removed during sanitation.\n * Empty if nothing was removed.\n */\n\n DOMPurify.removed = [];\n\n if (!window || !window.document || window.document.nodeType !== 9) {\n // Not running in a browser, provide a factory function\n // so that you can pass your own Window\n DOMPurify.isSupported = false;\n return DOMPurify;\n }\n\n const originalDocument = window.document;\n const currentScript = originalDocument.currentScript;\n let {\n document\n } = window;\n const {\n DocumentFragment,\n HTMLTemplateElement,\n Node,\n Element,\n NodeFilter,\n NamedNodeMap = window.NamedNodeMap || window.MozNamedAttrMap,\n HTMLFormElement,\n DOMParser,\n trustedTypes\n } = window;\n const ElementPrototype = Element.prototype;\n const cloneNode = lookupGetter(ElementPrototype, 'cloneNode');\n const getNextSibling = lookupGetter(ElementPrototype, 'nextSibling');\n const getChildNodes = lookupGetter(ElementPrototype, 'childNodes');\n const getParentNode = lookupGetter(ElementPrototype, 'parentNode'); // As per issue #47, the web-components registry is inherited by a\n // new document created via createHTMLDocument. As per the spec\n // (http://w3c.github.io/webcomponents/spec/custom/#creating-and-passing-registries)\n // a new empty registry is used when creating a template contents owner\n // document, so we use that as our parent document to ensure nothing\n // is inherited.\n\n if (typeof HTMLTemplateElement === 'function') {\n const template = document.createElement('template');\n\n if (template.content && template.content.ownerDocument) {\n document = template.content.ownerDocument;\n }\n }\n\n let trustedTypesPolicy;\n let emptyHTML = '';\n const {\n implementation,\n createNodeIterator,\n createDocumentFragment,\n getElementsByTagName\n } = document;\n const {\n importNode\n } = originalDocument;\n let hooks = {};\n /**\n * Expose whether this browser supports running the full DOMPurify.\n */\n\n DOMPurify.isSupported = typeof entries === 'function' && typeof getParentNode === 'function' && implementation && implementation.createHTMLDocument !== undefined;\n const {\n MUSTACHE_EXPR,\n ERB_EXPR,\n TMPLIT_EXPR,\n DATA_ATTR,\n ARIA_ATTR,\n IS_SCRIPT_OR_DATA,\n ATTR_WHITESPACE\n } = EXPRESSIONS;\n let {\n IS_ALLOWED_URI: IS_ALLOWED_URI$1\n } = EXPRESSIONS;\n /**\n * We consider the elements and attributes below to be safe. Ideally\n * don't add any new ones but feel free to remove unwanted ones.\n */\n\n /* allowed element names */\n\n let ALLOWED_TAGS = null;\n const DEFAULT_ALLOWED_TAGS = addToSet({}, [...html$1, ...svg$1, ...svgFilters, ...mathMl$1, ...text]);\n /* Allowed attribute names */\n\n let ALLOWED_ATTR = null;\n const DEFAULT_ALLOWED_ATTR = addToSet({}, [...html, ...svg, ...mathMl, ...xml]);\n /*\n * Configure how DOMPUrify should handle custom elements and their attributes as well as customized built-in elements.\n * @property {RegExp|Function|null} tagNameCheck one of [null, regexPattern, predicate]. Default: `null` (disallow any custom elements)\n * @property {RegExp|Function|null} attributeNameCheck one of [null, regexPattern, predicate]. Default: `null` (disallow any attributes not on the allow list)\n * @property {boolean} allowCustomizedBuiltInElements allow custom elements derived from built-ins if they pass CUSTOM_ELEMENT_HANDLING.tagNameCheck. Default: `false`.\n */\n\n let CUSTOM_ELEMENT_HANDLING = Object.seal(Object.create(null, {\n tagNameCheck: {\n writable: true,\n configurable: false,\n enumerable: true,\n value: null\n },\n attributeNameCheck: {\n writable: true,\n configurable: false,\n enumerable: true,\n value: null\n },\n allowCustomizedBuiltInElements: {\n writable: true,\n configurable: false,\n enumerable: true,\n value: false\n }\n }));\n /* Explicitly forbidden tags (overrides ALLOWED_TAGS/ADD_TAGS) */\n\n let FORBID_TAGS = null;\n /* Explicitly forbidden attributes (overrides ALLOWED_ATTR/ADD_ATTR) */\n\n let FORBID_ATTR = null;\n /* Decide if ARIA attributes are okay */\n\n let ALLOW_ARIA_ATTR = true;\n /* Decide if custom data attributes are okay */\n\n let ALLOW_DATA_ATTR = true;\n /* Decide if unknown protocols are okay */\n\n let ALLOW_UNKNOWN_PROTOCOLS = false;\n /* Decide if self-closing tags in attributes are allowed.\n * Usually removed due to a mXSS issue in jQuery 3.0 */\n\n let ALLOW_SELF_CLOSE_IN_ATTR = true;\n /* Output should be safe for common template engines.\n * This means, DOMPurify removes data attributes, mustaches and ERB\n */\n\n let SAFE_FOR_TEMPLATES = false;\n /* Decide if document with ... should be returned */\n\n let WHOLE_DOCUMENT = false;\n /* Track whether config is already set on this instance of DOMPurify. */\n\n let SET_CONFIG = false;\n /* Decide if all elements (e.g. style, script) must be children of\n * document.body. By default, browsers might move them to document.head */\n\n let FORCE_BODY = false;\n /* Decide if a DOM `HTMLBodyElement` should be returned, instead of a html\n * string (or a TrustedHTML object if Trusted Types are supported).\n * If `WHOLE_DOCUMENT` is enabled a `HTMLHtmlElement` will be returned instead\n */\n\n let RETURN_DOM = false;\n /* Decide if a DOM `DocumentFragment` should be returned, instead of a html\n * string (or a TrustedHTML object if Trusted Types are supported) */\n\n let RETURN_DOM_FRAGMENT = false;\n /* Try to return a Trusted Type object instead of a string, return a string in\n * case Trusted Types are not supported */\n\n let RETURN_TRUSTED_TYPE = false;\n /* Output should be free from DOM clobbering attacks?\n * This sanitizes markups named with colliding, clobberable built-in DOM APIs.\n */\n\n let SANITIZE_DOM = true;\n /* Achieve full DOM Clobbering protection by isolating the namespace of named\n * properties and JS variables, mitigating attacks that abuse the HTML/DOM spec rules.\n *\n * HTML/DOM spec rules that enable DOM Clobbering:\n * - Named Access on Window (§7.3.3)\n * - DOM Tree Accessors (§3.1.5)\n * - Form Element Parent-Child Relations (§4.10.3)\n * - Iframe srcdoc / Nested WindowProxies (§4.8.5)\n * - HTMLCollection (§4.2.10.2)\n *\n * Namespace isolation is implemented by prefixing `id` and `name` attributes\n * with a constant string, i.e., `user-content-`\n */\n\n let SANITIZE_NAMED_PROPS = false;\n const SANITIZE_NAMED_PROPS_PREFIX = 'user-content-';\n /* Keep element content when removing element? */\n\n let KEEP_CONTENT = true;\n /* If a `Node` is passed to sanitize(), then performs sanitization in-place instead\n * of importing it into a new Document and returning a sanitized copy */\n\n let IN_PLACE = false;\n /* Allow usage of profiles like html, svg and mathMl */\n\n let USE_PROFILES = {};\n /* Tags to ignore content of when KEEP_CONTENT is true */\n\n let FORBID_CONTENTS = null;\n const DEFAULT_FORBID_CONTENTS = addToSet({}, ['annotation-xml', 'audio', 'colgroup', 'desc', 'foreignobject', 'head', 'iframe', 'math', 'mi', 'mn', 'mo', 'ms', 'mtext', 'noembed', 'noframes', 'noscript', 'plaintext', 'script', 'style', 'svg', 'template', 'thead', 'title', 'video', 'xmp']);\n /* Tags that are safe for data: URIs */\n\n let DATA_URI_TAGS = null;\n const DEFAULT_DATA_URI_TAGS = addToSet({}, ['audio', 'video', 'img', 'source', 'image', 'track']);\n /* Attributes safe for values like \"javascript:\" */\n\n let URI_SAFE_ATTRIBUTES = null;\n const DEFAULT_URI_SAFE_ATTRIBUTES = addToSet({}, ['alt', 'class', 'for', 'id', 'label', 'name', 'pattern', 'placeholder', 'role', 'summary', 'title', 'value', 'style', 'xmlns']);\n const MATHML_NAMESPACE = 'http://www.w3.org/1998/Math/MathML';\n const SVG_NAMESPACE = 'http://www.w3.org/2000/svg';\n const HTML_NAMESPACE = 'http://www.w3.org/1999/xhtml';\n /* Document namespace */\n\n let NAMESPACE = HTML_NAMESPACE;\n let IS_EMPTY_INPUT = false;\n /* Allowed XHTML+XML namespaces */\n\n let ALLOWED_NAMESPACES = null;\n const DEFAULT_ALLOWED_NAMESPACES = addToSet({}, [MATHML_NAMESPACE, SVG_NAMESPACE, HTML_NAMESPACE], stringToString);\n /* Parsing of strict XHTML documents */\n\n let PARSER_MEDIA_TYPE;\n const SUPPORTED_PARSER_MEDIA_TYPES = ['application/xhtml+xml', 'text/html'];\n const DEFAULT_PARSER_MEDIA_TYPE = 'text/html';\n let transformCaseFunc;\n /* Keep a reference to config to pass to hooks */\n\n let CONFIG = null;\n /* Ideally, do not touch anything below this line */\n\n /* ______________________________________________ */\n\n const formElement = document.createElement('form');\n\n const isRegexOrFunction = function isRegexOrFunction(testValue) {\n return testValue instanceof RegExp || testValue instanceof Function;\n };\n /**\n * _parseConfig\n *\n * @param {Object} cfg optional config literal\n */\n // eslint-disable-next-line complexity\n\n\n const _parseConfig = function _parseConfig(cfg) {\n if (CONFIG && CONFIG === cfg) {\n return;\n }\n /* Shield configuration object from tampering */\n\n\n if (!cfg || typeof cfg !== 'object') {\n cfg = {};\n }\n /* Shield configuration object from prototype pollution */\n\n\n cfg = clone(cfg);\n PARSER_MEDIA_TYPE = // eslint-disable-next-line unicorn/prefer-includes\n SUPPORTED_PARSER_MEDIA_TYPES.indexOf(cfg.PARSER_MEDIA_TYPE) === -1 ? PARSER_MEDIA_TYPE = DEFAULT_PARSER_MEDIA_TYPE : PARSER_MEDIA_TYPE = cfg.PARSER_MEDIA_TYPE; // HTML tags and attributes are not case-sensitive, converting to lowercase. Keeping XHTML as is.\n\n transformCaseFunc = PARSER_MEDIA_TYPE === 'application/xhtml+xml' ? stringToString : stringToLowerCase;\n /* Set configuration parameters */\n\n ALLOWED_TAGS = 'ALLOWED_TAGS' in cfg ? addToSet({}, cfg.ALLOWED_TAGS, transformCaseFunc) : DEFAULT_ALLOWED_TAGS;\n ALLOWED_ATTR = 'ALLOWED_ATTR' in cfg ? addToSet({}, cfg.ALLOWED_ATTR, transformCaseFunc) : DEFAULT_ALLOWED_ATTR;\n ALLOWED_NAMESPACES = 'ALLOWED_NAMESPACES' in cfg ? addToSet({}, cfg.ALLOWED_NAMESPACES, stringToString) : DEFAULT_ALLOWED_NAMESPACES;\n URI_SAFE_ATTRIBUTES = 'ADD_URI_SAFE_ATTR' in cfg ? addToSet(clone(DEFAULT_URI_SAFE_ATTRIBUTES), // eslint-disable-line indent\n cfg.ADD_URI_SAFE_ATTR, // eslint-disable-line indent\n transformCaseFunc // eslint-disable-line indent\n ) // eslint-disable-line indent\n : DEFAULT_URI_SAFE_ATTRIBUTES;\n DATA_URI_TAGS = 'ADD_DATA_URI_TAGS' in cfg ? addToSet(clone(DEFAULT_DATA_URI_TAGS), // eslint-disable-line indent\n cfg.ADD_DATA_URI_TAGS, // eslint-disable-line indent\n transformCaseFunc // eslint-disable-line indent\n ) // eslint-disable-line indent\n : DEFAULT_DATA_URI_TAGS;\n FORBID_CONTENTS = 'FORBID_CONTENTS' in cfg ? addToSet({}, cfg.FORBID_CONTENTS, transformCaseFunc) : DEFAULT_FORBID_CONTENTS;\n FORBID_TAGS = 'FORBID_TAGS' in cfg ? addToSet({}, cfg.FORBID_TAGS, transformCaseFunc) : {};\n FORBID_ATTR = 'FORBID_ATTR' in cfg ? addToSet({}, cfg.FORBID_ATTR, transformCaseFunc) : {};\n USE_PROFILES = 'USE_PROFILES' in cfg ? cfg.USE_PROFILES : false;\n ALLOW_ARIA_ATTR = cfg.ALLOW_ARIA_ATTR !== false; // Default true\n\n ALLOW_DATA_ATTR = cfg.ALLOW_DATA_ATTR !== false; // Default true\n\n ALLOW_UNKNOWN_PROTOCOLS = cfg.ALLOW_UNKNOWN_PROTOCOLS || false; // Default false\n\n ALLOW_SELF_CLOSE_IN_ATTR = cfg.ALLOW_SELF_CLOSE_IN_ATTR !== false; // Default true\n\n SAFE_FOR_TEMPLATES = cfg.SAFE_FOR_TEMPLATES || false; // Default false\n\n WHOLE_DOCUMENT = cfg.WHOLE_DOCUMENT || false; // Default false\n\n RETURN_DOM = cfg.RETURN_DOM || false; // Default false\n\n RETURN_DOM_FRAGMENT = cfg.RETURN_DOM_FRAGMENT || false; // Default false\n\n RETURN_TRUSTED_TYPE = cfg.RETURN_TRUSTED_TYPE || false; // Default false\n\n FORCE_BODY = cfg.FORCE_BODY || false; // Default false\n\n SANITIZE_DOM = cfg.SANITIZE_DOM !== false; // Default true\n\n SANITIZE_NAMED_PROPS = cfg.SANITIZE_NAMED_PROPS || false; // Default false\n\n KEEP_CONTENT = cfg.KEEP_CONTENT !== false; // Default true\n\n IN_PLACE = cfg.IN_PLACE || false; // Default false\n\n IS_ALLOWED_URI$1 = cfg.ALLOWED_URI_REGEXP || IS_ALLOWED_URI;\n NAMESPACE = cfg.NAMESPACE || HTML_NAMESPACE;\n CUSTOM_ELEMENT_HANDLING = cfg.CUSTOM_ELEMENT_HANDLING || {};\n\n if (cfg.CUSTOM_ELEMENT_HANDLING && isRegexOrFunction(cfg.CUSTOM_ELEMENT_HANDLING.tagNameCheck)) {\n CUSTOM_ELEMENT_HANDLING.tagNameCheck = cfg.CUSTOM_ELEMENT_HANDLING.tagNameCheck;\n }\n\n if (cfg.CUSTOM_ELEMENT_HANDLING && isRegexOrFunction(cfg.CUSTOM_ELEMENT_HANDLING.attributeNameCheck)) {\n CUSTOM_ELEMENT_HANDLING.attributeNameCheck = cfg.CUSTOM_ELEMENT_HANDLING.attributeNameCheck;\n }\n\n if (cfg.CUSTOM_ELEMENT_HANDLING && typeof cfg.CUSTOM_ELEMENT_HANDLING.allowCustomizedBuiltInElements === 'boolean') {\n CUSTOM_ELEMENT_HANDLING.allowCustomizedBuiltInElements = cfg.CUSTOM_ELEMENT_HANDLING.allowCustomizedBuiltInElements;\n }\n\n if (SAFE_FOR_TEMPLATES) {\n ALLOW_DATA_ATTR = false;\n }\n\n if (RETURN_DOM_FRAGMENT) {\n RETURN_DOM = true;\n }\n /* Parse profile info */\n\n\n if (USE_PROFILES) {\n ALLOWED_TAGS = addToSet({}, [...text]);\n ALLOWED_ATTR = [];\n\n if (USE_PROFILES.html === true) {\n addToSet(ALLOWED_TAGS, html$1);\n addToSet(ALLOWED_ATTR, html);\n }\n\n if (USE_PROFILES.svg === true) {\n addToSet(ALLOWED_TAGS, svg$1);\n addToSet(ALLOWED_ATTR, svg);\n addToSet(ALLOWED_ATTR, xml);\n }\n\n if (USE_PROFILES.svgFilters === true) {\n addToSet(ALLOWED_TAGS, svgFilters);\n addToSet(ALLOWED_ATTR, svg);\n addToSet(ALLOWED_ATTR, xml);\n }\n\n if (USE_PROFILES.mathMl === true) {\n addToSet(ALLOWED_TAGS, mathMl$1);\n addToSet(ALLOWED_ATTR, mathMl);\n addToSet(ALLOWED_ATTR, xml);\n }\n }\n /* Merge configuration parameters */\n\n\n if (cfg.ADD_TAGS) {\n if (ALLOWED_TAGS === DEFAULT_ALLOWED_TAGS) {\n ALLOWED_TAGS = clone(ALLOWED_TAGS);\n }\n\n addToSet(ALLOWED_TAGS, cfg.ADD_TAGS, transformCaseFunc);\n }\n\n if (cfg.ADD_ATTR) {\n if (ALLOWED_ATTR === DEFAULT_ALLOWED_ATTR) {\n ALLOWED_ATTR = clone(ALLOWED_ATTR);\n }\n\n addToSet(ALLOWED_ATTR, cfg.ADD_ATTR, transformCaseFunc);\n }\n\n if (cfg.ADD_URI_SAFE_ATTR) {\n addToSet(URI_SAFE_ATTRIBUTES, cfg.ADD_URI_SAFE_ATTR, transformCaseFunc);\n }\n\n if (cfg.FORBID_CONTENTS) {\n if (FORBID_CONTENTS === DEFAULT_FORBID_CONTENTS) {\n FORBID_CONTENTS = clone(FORBID_CONTENTS);\n }\n\n addToSet(FORBID_CONTENTS, cfg.FORBID_CONTENTS, transformCaseFunc);\n }\n /* Add #text in case KEEP_CONTENT is set to true */\n\n\n if (KEEP_CONTENT) {\n ALLOWED_TAGS['#text'] = true;\n }\n /* Add html, head and body to ALLOWED_TAGS in case WHOLE_DOCUMENT is true */\n\n\n if (WHOLE_DOCUMENT) {\n addToSet(ALLOWED_TAGS, ['html', 'head', 'body']);\n }\n /* Add tbody to ALLOWED_TAGS in case tables are permitted, see #286, #365 */\n\n\n if (ALLOWED_TAGS.table) {\n addToSet(ALLOWED_TAGS, ['tbody']);\n delete FORBID_TAGS.tbody;\n }\n\n if (cfg.TRUSTED_TYPES_POLICY) {\n if (typeof cfg.TRUSTED_TYPES_POLICY.createHTML !== 'function') {\n throw typeErrorCreate('TRUSTED_TYPES_POLICY configuration option must provide a \"createHTML\" hook.');\n }\n\n if (typeof cfg.TRUSTED_TYPES_POLICY.createScriptURL !== 'function') {\n throw typeErrorCreate('TRUSTED_TYPES_POLICY configuration option must provide a \"createScriptURL\" hook.');\n } // Overwrite existing TrustedTypes policy.\n\n\n trustedTypesPolicy = cfg.TRUSTED_TYPES_POLICY; // Sign local variables required by `sanitize`.\n\n emptyHTML = trustedTypesPolicy.createHTML('');\n } else {\n // Uninitialized policy, attempt to initialize the internal dompurify policy.\n if (trustedTypesPolicy === undefined) {\n trustedTypesPolicy = _createTrustedTypesPolicy(trustedTypes, currentScript);\n } // If creating the internal policy succeeded sign internal variables.\n\n\n if (trustedTypesPolicy !== null && typeof emptyHTML === 'string') {\n emptyHTML = trustedTypesPolicy.createHTML('');\n }\n } // Prevent further manipulation of configuration.\n // Not available in IE8, Safari 5, etc.\n\n\n if (freeze) {\n freeze(cfg);\n }\n\n CONFIG = cfg;\n };\n\n const MATHML_TEXT_INTEGRATION_POINTS = addToSet({}, ['mi', 'mo', 'mn', 'ms', 'mtext']);\n const HTML_INTEGRATION_POINTS = addToSet({}, ['foreignobject', 'desc', 'title', 'annotation-xml']); // Certain elements are allowed in both SVG and HTML\n // namespace. We need to specify them explicitly\n // so that they don't get erroneously deleted from\n // HTML namespace.\n\n const COMMON_SVG_AND_HTML_ELEMENTS = addToSet({}, ['title', 'style', 'font', 'a', 'script']);\n /* Keep track of all possible SVG and MathML tags\n * so that we can perform the namespace checks\n * correctly. */\n\n const ALL_SVG_TAGS = addToSet({}, svg$1);\n addToSet(ALL_SVG_TAGS, svgFilters);\n addToSet(ALL_SVG_TAGS, svgDisallowed);\n const ALL_MATHML_TAGS = addToSet({}, mathMl$1);\n addToSet(ALL_MATHML_TAGS, mathMlDisallowed);\n /**\n *\n *\n * @param {Element} element a DOM element whose namespace is being checked\n * @returns {boolean} Return false if the element has a\n * namespace that a spec-compliant parser would never\n * return. Return true otherwise.\n */\n\n const _checkValidNamespace = function _checkValidNamespace(element) {\n let parent = getParentNode(element); // In JSDOM, if we're inside shadow DOM, then parentNode\n // can be null. We just simulate parent in this case.\n\n if (!parent || !parent.tagName) {\n parent = {\n namespaceURI: NAMESPACE,\n tagName: 'template'\n };\n }\n\n const tagName = stringToLowerCase(element.tagName);\n const parentTagName = stringToLowerCase(parent.tagName);\n\n if (!ALLOWED_NAMESPACES[element.namespaceURI]) {\n return false;\n }\n\n if (element.namespaceURI === SVG_NAMESPACE) {\n // The only way to switch from HTML namespace to SVG\n // is via . If it happens via any other tag, then\n // it should be killed.\n if (parent.namespaceURI === HTML_NAMESPACE) {\n return tagName === 'svg';\n } // The only way to switch from MathML to SVG is via`\n // svg if parent is either or MathML\n // text integration points.\n\n\n if (parent.namespaceURI === MATHML_NAMESPACE) {\n return tagName === 'svg' && (parentTagName === 'annotation-xml' || MATHML_TEXT_INTEGRATION_POINTS[parentTagName]);\n } // We only allow elements that are defined in SVG\n // spec. All others are disallowed in SVG namespace.\n\n\n return Boolean(ALL_SVG_TAGS[tagName]);\n }\n\n if (element.namespaceURI === MATHML_NAMESPACE) {\n // The only way to switch from HTML namespace to MathML\n // is via . If it happens via any other tag, then\n // it should be killed.\n if (parent.namespaceURI === HTML_NAMESPACE) {\n return tagName === 'math';\n } // The only way to switch from SVG to MathML is via\n // and HTML integration points\n\n\n if (parent.namespaceURI === SVG_NAMESPACE) {\n return tagName === 'math' && HTML_INTEGRATION_POINTS[parentTagName];\n } // We only allow elements that are defined in MathML\n // spec. All others are disallowed in MathML namespace.\n\n\n return Boolean(ALL_MATHML_TAGS[tagName]);\n }\n\n if (element.namespaceURI === HTML_NAMESPACE) {\n // The only way to switch from SVG to HTML is via\n // HTML integration points, and from MathML to HTML\n // is via MathML text integration points\n if (parent.namespaceURI === SVG_NAMESPACE && !HTML_INTEGRATION_POINTS[parentTagName]) {\n return false;\n }\n\n if (parent.namespaceURI === MATHML_NAMESPACE && !MATHML_TEXT_INTEGRATION_POINTS[parentTagName]) {\n return false;\n } // We disallow tags that are specific for MathML\n // or SVG and should never appear in HTML namespace\n\n\n return !ALL_MATHML_TAGS[tagName] && (COMMON_SVG_AND_HTML_ELEMENTS[tagName] || !ALL_SVG_TAGS[tagName]);\n } // For XHTML and XML documents that support custom namespaces\n\n\n if (PARSER_MEDIA_TYPE === 'application/xhtml+xml' && ALLOWED_NAMESPACES[element.namespaceURI]) {\n return true;\n } // The code should never reach this place (this means\n // that the element somehow got namespace that is not\n // HTML, SVG, MathML or allowed via ALLOWED_NAMESPACES).\n // Return false just in case.\n\n\n return false;\n };\n /**\n * _forceRemove\n *\n * @param {Node} node a DOM node\n */\n\n\n const _forceRemove = function _forceRemove(node) {\n arrayPush(DOMPurify.removed, {\n element: node\n });\n\n try {\n // eslint-disable-next-line unicorn/prefer-dom-node-remove\n node.parentNode.removeChild(node);\n } catch (_) {\n node.remove();\n }\n };\n /**\n * _removeAttribute\n *\n * @param {String} name an Attribute name\n * @param {Node} node a DOM node\n */\n\n\n const _removeAttribute = function _removeAttribute(name, node) {\n try {\n arrayPush(DOMPurify.removed, {\n attribute: node.getAttributeNode(name),\n from: node\n });\n } catch (_) {\n arrayPush(DOMPurify.removed, {\n attribute: null,\n from: node\n });\n }\n\n node.removeAttribute(name); // We void attribute values for unremovable \"is\"\" attributes\n\n if (name === 'is' && !ALLOWED_ATTR[name]) {\n if (RETURN_DOM || RETURN_DOM_FRAGMENT) {\n try {\n _forceRemove(node);\n } catch (_) {}\n } else {\n try {\n node.setAttribute(name, '');\n } catch (_) {}\n }\n }\n };\n /**\n * _initDocument\n *\n * @param {String} dirty a string of dirty markup\n * @return {Document} a DOM, filled with the dirty markup\n */\n\n\n const _initDocument = function _initDocument(dirty) {\n /* Create a HTML document */\n let doc;\n let leadingWhitespace;\n\n if (FORCE_BODY) {\n dirty = '' + dirty;\n } else {\n /* If FORCE_BODY isn't used, leading whitespace needs to be preserved manually */\n const matches = stringMatch(dirty, /^[\\r\\n\\t ]+/);\n leadingWhitespace = matches && matches[0];\n }\n\n if (PARSER_MEDIA_TYPE === 'application/xhtml+xml' && NAMESPACE === HTML_NAMESPACE) {\n // Root of XHTML doc must contain xmlns declaration (see https://www.w3.org/TR/xhtml1/normative.html#strict)\n dirty = '' + dirty + '';\n }\n\n const dirtyPayload = trustedTypesPolicy ? trustedTypesPolicy.createHTML(dirty) : dirty;\n /*\n * Use the DOMParser API by default, fallback later if needs be\n * DOMParser not work for svg when has multiple root element.\n */\n\n if (NAMESPACE === HTML_NAMESPACE) {\n try {\n doc = new DOMParser().parseFromString(dirtyPayload, PARSER_MEDIA_TYPE);\n } catch (_) {}\n }\n /* Use createHTMLDocument in case DOMParser is not available */\n\n\n if (!doc || !doc.documentElement) {\n doc = implementation.createDocument(NAMESPACE, 'template', null);\n\n try {\n doc.documentElement.innerHTML = IS_EMPTY_INPUT ? emptyHTML : dirtyPayload;\n } catch (_) {// Syntax error if dirtyPayload is invalid xml\n }\n }\n\n const body = doc.body || doc.documentElement;\n\n if (dirty && leadingWhitespace) {\n body.insertBefore(document.createTextNode(leadingWhitespace), body.childNodes[0] || null);\n }\n /* Work on whole document or just its body */\n\n\n if (NAMESPACE === HTML_NAMESPACE) {\n return getElementsByTagName.call(doc, WHOLE_DOCUMENT ? 'html' : 'body')[0];\n }\n\n return WHOLE_DOCUMENT ? doc.documentElement : body;\n };\n /**\n * _createIterator\n *\n * @param {Document} root document/fragment to create iterator for\n * @return {Iterator} iterator instance\n */\n\n\n const _createIterator = function _createIterator(root) {\n return createNodeIterator.call(root.ownerDocument || root, root, // eslint-disable-next-line no-bitwise\n NodeFilter.SHOW_ELEMENT | NodeFilter.SHOW_COMMENT | NodeFilter.SHOW_TEXT, null, false);\n };\n /**\n * _isClobbered\n *\n * @param {Node} elm element to check for clobbering attacks\n * @return {Boolean} true if clobbered, false if safe\n */\n\n\n const _isClobbered = function _isClobbered(elm) {\n return elm instanceof HTMLFormElement && (typeof elm.nodeName !== 'string' || typeof elm.textContent !== 'string' || typeof elm.removeChild !== 'function' || !(elm.attributes instanceof NamedNodeMap) || typeof elm.removeAttribute !== 'function' || typeof elm.setAttribute !== 'function' || typeof elm.namespaceURI !== 'string' || typeof elm.insertBefore !== 'function' || typeof elm.hasChildNodes !== 'function');\n };\n /**\n * _isNode\n *\n * @param {Node} obj object to check whether it's a DOM node\n * @return {Boolean} true is object is a DOM node\n */\n\n\n const _isNode = function _isNode(object) {\n return typeof Node === 'object' ? object instanceof Node : object && typeof object === 'object' && typeof object.nodeType === 'number' && typeof object.nodeName === 'string';\n };\n /**\n * _executeHook\n * Execute user configurable hooks\n *\n * @param {String} entryPoint Name of the hook's entry point\n * @param {Node} currentNode node to work on with the hook\n * @param {Object} data additional hook parameters\n */\n\n\n const _executeHook = function _executeHook(entryPoint, currentNode, data) {\n if (!hooks[entryPoint]) {\n return;\n }\n\n arrayForEach(hooks[entryPoint], hook => {\n hook.call(DOMPurify, currentNode, data, CONFIG);\n });\n };\n /**\n * _sanitizeElements\n *\n * @protect nodeName\n * @protect textContent\n * @protect removeChild\n *\n * @param {Node} currentNode to check for permission to exist\n * @return {Boolean} true if node was killed, false if left alive\n */\n\n\n const _sanitizeElements = function _sanitizeElements(currentNode) {\n let content;\n /* Execute a hook if present */\n\n _executeHook('beforeSanitizeElements', currentNode, null);\n /* Check if element is clobbered or can clobber */\n\n\n if (_isClobbered(currentNode)) {\n _forceRemove(currentNode);\n\n return true;\n }\n /* Now let's check the element's type and name */\n\n\n const tagName = transformCaseFunc(currentNode.nodeName);\n /* Execute a hook if present */\n\n _executeHook('uponSanitizeElement', currentNode, {\n tagName,\n allowedTags: ALLOWED_TAGS\n });\n /* Detect mXSS attempts abusing namespace confusion */\n\n\n if (currentNode.hasChildNodes() && !_isNode(currentNode.firstElementChild) && (!_isNode(currentNode.content) || !_isNode(currentNode.content.firstElementChild)) && regExpTest(/<[/\\w]/g, currentNode.innerHTML) && regExpTest(/<[/\\w]/g, currentNode.textContent)) {\n _forceRemove(currentNode);\n\n return true;\n }\n /* Remove element if anything forbids its presence */\n\n\n if (!ALLOWED_TAGS[tagName] || FORBID_TAGS[tagName]) {\n /* Check if we have a custom element to handle */\n if (!FORBID_TAGS[tagName] && _basicCustomElementTest(tagName)) {\n if (CUSTOM_ELEMENT_HANDLING.tagNameCheck instanceof RegExp && regExpTest(CUSTOM_ELEMENT_HANDLING.tagNameCheck, tagName)) return false;\n if (CUSTOM_ELEMENT_HANDLING.tagNameCheck instanceof Function && CUSTOM_ELEMENT_HANDLING.tagNameCheck(tagName)) return false;\n }\n /* Keep content except for bad-listed elements */\n\n\n if (KEEP_CONTENT && !FORBID_CONTENTS[tagName]) {\n const parentNode = getParentNode(currentNode) || currentNode.parentNode;\n const childNodes = getChildNodes(currentNode) || currentNode.childNodes;\n\n if (childNodes && parentNode) {\n const childCount = childNodes.length;\n\n for (let i = childCount - 1; i >= 0; --i) {\n parentNode.insertBefore(cloneNode(childNodes[i], true), getNextSibling(currentNode));\n }\n }\n }\n\n _forceRemove(currentNode);\n\n return true;\n }\n /* Check whether element has a valid namespace */\n\n\n if (currentNode instanceof Element && !_checkValidNamespace(currentNode)) {\n _forceRemove(currentNode);\n\n return true;\n }\n /* Make sure that older browsers don't get fallback-tag mXSS */\n\n\n if ((tagName === 'noscript' || tagName === 'noembed' || tagName === 'noframes') && regExpTest(/<\\/no(script|embed|frames)/i, currentNode.innerHTML)) {\n _forceRemove(currentNode);\n\n return true;\n }\n /* Sanitize element content to be template-safe */\n\n\n if (SAFE_FOR_TEMPLATES && currentNode.nodeType === 3) {\n /* Get the element's text content */\n content = currentNode.textContent;\n content = stringReplace(content, MUSTACHE_EXPR, ' ');\n content = stringReplace(content, ERB_EXPR, ' ');\n content = stringReplace(content, TMPLIT_EXPR, ' ');\n\n if (currentNode.textContent !== content) {\n arrayPush(DOMPurify.removed, {\n element: currentNode.cloneNode()\n });\n currentNode.textContent = content;\n }\n }\n /* Execute a hook if present */\n\n\n _executeHook('afterSanitizeElements', currentNode, null);\n\n return false;\n };\n /**\n * _isValidAttribute\n *\n * @param {string} lcTag Lowercase tag name of containing element.\n * @param {string} lcName Lowercase attribute name.\n * @param {string} value Attribute value.\n * @return {Boolean} Returns true if `value` is valid, otherwise false.\n */\n // eslint-disable-next-line complexity\n\n\n const _isValidAttribute = function _isValidAttribute(lcTag, lcName, value) {\n /* Make sure attribute cannot clobber */\n if (SANITIZE_DOM && (lcName === 'id' || lcName === 'name') && (value in document || value in formElement)) {\n return false;\n }\n /* Allow valid data-* attributes: At least one character after \"-\"\n (https://html.spec.whatwg.org/multipage/dom.html#embedding-custom-non-visible-data-with-the-data-*-attributes)\n XML-compatible (https://html.spec.whatwg.org/multipage/infrastructure.html#xml-compatible and http://www.w3.org/TR/xml/#d0e804)\n We don't need to check the value; it's always URI safe. */\n\n\n if (ALLOW_DATA_ATTR && !FORBID_ATTR[lcName] && regExpTest(DATA_ATTR, lcName)) ; else if (ALLOW_ARIA_ATTR && regExpTest(ARIA_ATTR, lcName)) ; else if (!ALLOWED_ATTR[lcName] || FORBID_ATTR[lcName]) {\n if ( // First condition does a very basic check if a) it's basically a valid custom element tagname AND\n // b) if the tagName passes whatever the user has configured for CUSTOM_ELEMENT_HANDLING.tagNameCheck\n // and c) if the attribute name passes whatever the user has configured for CUSTOM_ELEMENT_HANDLING.attributeNameCheck\n _basicCustomElementTest(lcTag) && (CUSTOM_ELEMENT_HANDLING.tagNameCheck instanceof RegExp && regExpTest(CUSTOM_ELEMENT_HANDLING.tagNameCheck, lcTag) || CUSTOM_ELEMENT_HANDLING.tagNameCheck instanceof Function && CUSTOM_ELEMENT_HANDLING.tagNameCheck(lcTag)) && (CUSTOM_ELEMENT_HANDLING.attributeNameCheck instanceof RegExp && regExpTest(CUSTOM_ELEMENT_HANDLING.attributeNameCheck, lcName) || CUSTOM_ELEMENT_HANDLING.attributeNameCheck instanceof Function && CUSTOM_ELEMENT_HANDLING.attributeNameCheck(lcName)) || // Alternative, second condition checks if it's an `is`-attribute, AND\n // the value passes whatever the user has configured for CUSTOM_ELEMENT_HANDLING.tagNameCheck\n lcName === 'is' && CUSTOM_ELEMENT_HANDLING.allowCustomizedBuiltInElements && (CUSTOM_ELEMENT_HANDLING.tagNameCheck instanceof RegExp && regExpTest(CUSTOM_ELEMENT_HANDLING.tagNameCheck, value) || CUSTOM_ELEMENT_HANDLING.tagNameCheck instanceof Function && CUSTOM_ELEMENT_HANDLING.tagNameCheck(value))) ; else {\n return false;\n }\n /* Check value is safe. First, is attr inert? If so, is safe */\n\n } else if (URI_SAFE_ATTRIBUTES[lcName]) ; else if (regExpTest(IS_ALLOWED_URI$1, stringReplace(value, ATTR_WHITESPACE, ''))) ; else if ((lcName === 'src' || lcName === 'xlink:href' || lcName === 'href') && lcTag !== 'script' && stringIndexOf(value, 'data:') === 0 && DATA_URI_TAGS[lcTag]) ; else if (ALLOW_UNKNOWN_PROTOCOLS && !regExpTest(IS_SCRIPT_OR_DATA, stringReplace(value, ATTR_WHITESPACE, ''))) ; else if (value) {\n return false;\n } else ;\n\n return true;\n };\n /**\n * _basicCustomElementCheck\n * checks if at least one dash is included in tagName, and it's not the first char\n * for more sophisticated checking see https://github.com/sindresorhus/validate-element-name\n * @param {string} tagName name of the tag of the node to sanitize\n */\n\n\n const _basicCustomElementTest = function _basicCustomElementTest(tagName) {\n return tagName.indexOf('-') > 0;\n };\n /**\n * _sanitizeAttributes\n *\n * @protect attributes\n * @protect nodeName\n * @protect removeAttribute\n * @protect setAttribute\n *\n * @param {Node} currentNode to sanitize\n */\n\n\n const _sanitizeAttributes = function _sanitizeAttributes(currentNode) {\n let attr;\n let value;\n let lcName;\n let l;\n /* Execute a hook if present */\n\n _executeHook('beforeSanitizeAttributes', currentNode, null);\n\n const {\n attributes\n } = currentNode;\n /* Check if we have attributes; if not we might have a text node */\n\n if (!attributes) {\n return;\n }\n\n const hookEvent = {\n attrName: '',\n attrValue: '',\n keepAttr: true,\n allowedAttributes: ALLOWED_ATTR\n };\n l = attributes.length;\n /* Go backwards over all attributes; safely remove bad ones */\n\n while (l--) {\n attr = attributes[l];\n const {\n name,\n namespaceURI\n } = attr;\n value = name === 'value' ? attr.value : stringTrim(attr.value);\n lcName = transformCaseFunc(name);\n /* Execute a hook if present */\n\n hookEvent.attrName = lcName;\n hookEvent.attrValue = value;\n hookEvent.keepAttr = true;\n hookEvent.forceKeepAttr = undefined; // Allows developers to see this is a property they can set\n\n _executeHook('uponSanitizeAttribute', currentNode, hookEvent);\n\n value = hookEvent.attrValue;\n /* Did the hooks approve of the attribute? */\n\n if (hookEvent.forceKeepAttr) {\n continue;\n }\n /* Remove attribute */\n\n\n _removeAttribute(name, currentNode);\n /* Did the hooks approve of the attribute? */\n\n\n if (!hookEvent.keepAttr) {\n continue;\n }\n /* Work around a security issue in jQuery 3.0 */\n\n\n if (!ALLOW_SELF_CLOSE_IN_ATTR && regExpTest(/\\/>/i, value)) {\n _removeAttribute(name, currentNode);\n\n continue;\n }\n /* Sanitize attribute content to be template-safe */\n\n\n if (SAFE_FOR_TEMPLATES) {\n value = stringReplace(value, MUSTACHE_EXPR, ' ');\n value = stringReplace(value, ERB_EXPR, ' ');\n value = stringReplace(value, TMPLIT_EXPR, ' ');\n }\n /* Is `value` valid for this attribute? */\n\n\n const lcTag = transformCaseFunc(currentNode.nodeName);\n\n if (!_isValidAttribute(lcTag, lcName, value)) {\n continue;\n }\n /* Full DOM Clobbering protection via namespace isolation,\n * Prefix id and name attributes with `user-content-`\n */\n\n\n if (SANITIZE_NAMED_PROPS && (lcName === 'id' || lcName === 'name')) {\n // Remove the attribute with this value\n _removeAttribute(name, currentNode); // Prefix the value and later re-create the attribute with the sanitized value\n\n\n value = SANITIZE_NAMED_PROPS_PREFIX + value;\n }\n /* Handle attributes that require Trusted Types */\n\n\n if (trustedTypesPolicy && typeof trustedTypes === 'object' && typeof trustedTypes.getAttributeType === 'function') {\n if (namespaceURI) ; else {\n switch (trustedTypes.getAttributeType(lcTag, lcName)) {\n case 'TrustedHTML':\n {\n value = trustedTypesPolicy.createHTML(value);\n break;\n }\n\n case 'TrustedScriptURL':\n {\n value = trustedTypesPolicy.createScriptURL(value);\n break;\n }\n }\n }\n }\n /* Handle invalid data-* attribute set by try-catching it */\n\n\n try {\n if (namespaceURI) {\n currentNode.setAttributeNS(namespaceURI, name, value);\n } else {\n /* Fallback to setAttribute() for browser-unrecognized namespaces e.g. \"x-schema\". */\n currentNode.setAttribute(name, value);\n }\n\n arrayPop(DOMPurify.removed);\n } catch (_) {}\n }\n /* Execute a hook if present */\n\n\n _executeHook('afterSanitizeAttributes', currentNode, null);\n };\n /**\n * _sanitizeShadowDOM\n *\n * @param {DocumentFragment} fragment to iterate over recursively\n */\n\n\n const _sanitizeShadowDOM = function _sanitizeShadowDOM(fragment) {\n let shadowNode;\n\n const shadowIterator = _createIterator(fragment);\n /* Execute a hook if present */\n\n\n _executeHook('beforeSanitizeShadowDOM', fragment, null);\n\n while (shadowNode = shadowIterator.nextNode()) {\n /* Execute a hook if present */\n _executeHook('uponSanitizeShadowNode', shadowNode, null);\n /* Sanitize tags and elements */\n\n\n if (_sanitizeElements(shadowNode)) {\n continue;\n }\n /* Deep shadow DOM detected */\n\n\n if (shadowNode.content instanceof DocumentFragment) {\n _sanitizeShadowDOM(shadowNode.content);\n }\n /* Check attributes, sanitize if necessary */\n\n\n _sanitizeAttributes(shadowNode);\n }\n /* Execute a hook if present */\n\n\n _executeHook('afterSanitizeShadowDOM', fragment, null);\n };\n /**\n * Sanitize\n * Public method providing core sanitation functionality\n *\n * @param {String|Node} dirty string or DOM node\n * @param {Object} configuration object\n */\n // eslint-disable-next-line complexity\n\n\n DOMPurify.sanitize = function (dirty) {\n let cfg = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};\n let body;\n let importedNode;\n let currentNode;\n let returnNode;\n /* Make sure we have a string to sanitize.\n DO NOT return early, as this will return the wrong type if\n the user has requested a DOM object rather than a string */\n\n IS_EMPTY_INPUT = !dirty;\n\n if (IS_EMPTY_INPUT) {\n dirty = '';\n }\n /* Stringify, in case dirty is an object */\n\n\n if (typeof dirty !== 'string' && !_isNode(dirty)) {\n if (typeof dirty.toString === 'function') {\n dirty = dirty.toString();\n\n if (typeof dirty !== 'string') {\n throw typeErrorCreate('dirty is not a string, aborting');\n }\n } else {\n throw typeErrorCreate('toString is not a function');\n }\n }\n /* Return dirty HTML if DOMPurify cannot run */\n\n\n if (!DOMPurify.isSupported) {\n return dirty;\n }\n /* Assign config vars */\n\n\n if (!SET_CONFIG) {\n _parseConfig(cfg);\n }\n /* Clean up removed elements */\n\n\n DOMPurify.removed = [];\n /* Check if dirty is correctly typed for IN_PLACE */\n\n if (typeof dirty === 'string') {\n IN_PLACE = false;\n }\n\n if (IN_PLACE) {\n /* Do some early pre-sanitization to avoid unsafe root nodes */\n if (dirty.nodeName) {\n const tagName = transformCaseFunc(dirty.nodeName);\n\n if (!ALLOWED_TAGS[tagName] || FORBID_TAGS[tagName]) {\n throw typeErrorCreate('root node is forbidden and cannot be sanitized in-place');\n }\n }\n } else if (dirty instanceof Node) {\n /* If dirty is a DOM element, append to an empty document to avoid\n elements being stripped by the parser */\n body = _initDocument('');\n importedNode = body.ownerDocument.importNode(dirty, true);\n\n if (importedNode.nodeType === 1 && importedNode.nodeName === 'BODY') {\n /* Node is already a body, use as is */\n body = importedNode;\n } else if (importedNode.nodeName === 'HTML') {\n body = importedNode;\n } else {\n // eslint-disable-next-line unicorn/prefer-dom-node-append\n body.appendChild(importedNode);\n }\n } else {\n /* Exit directly if we have nothing to do */\n if (!RETURN_DOM && !SAFE_FOR_TEMPLATES && !WHOLE_DOCUMENT && // eslint-disable-next-line unicorn/prefer-includes\n dirty.indexOf('<') === -1) {\n return trustedTypesPolicy && RETURN_TRUSTED_TYPE ? trustedTypesPolicy.createHTML(dirty) : dirty;\n }\n /* Initialize the document to work on */\n\n\n body = _initDocument(dirty);\n /* Check we have a DOM node from the data */\n\n if (!body) {\n return RETURN_DOM ? null : RETURN_TRUSTED_TYPE ? emptyHTML : '';\n }\n }\n /* Remove first element node (ours) if FORCE_BODY is set */\n\n\n if (body && FORCE_BODY) {\n _forceRemove(body.firstChild);\n }\n /* Get node iterator */\n\n\n const nodeIterator = _createIterator(IN_PLACE ? dirty : body);\n /* Now start iterating over the created document */\n\n\n while (currentNode = nodeIterator.nextNode()) {\n /* Sanitize tags and elements */\n if (_sanitizeElements(currentNode)) {\n continue;\n }\n /* Shadow DOM detected, sanitize it */\n\n\n if (currentNode.content instanceof DocumentFragment) {\n _sanitizeShadowDOM(currentNode.content);\n }\n /* Check attributes, sanitize if necessary */\n\n\n _sanitizeAttributes(currentNode);\n }\n /* If we sanitized `dirty` in-place, return it. */\n\n\n if (IN_PLACE) {\n return dirty;\n }\n /* Return sanitized string or DOM */\n\n\n if (RETURN_DOM) {\n if (RETURN_DOM_FRAGMENT) {\n returnNode = createDocumentFragment.call(body.ownerDocument);\n\n while (body.firstChild) {\n // eslint-disable-next-line unicorn/prefer-dom-node-append\n returnNode.appendChild(body.firstChild);\n }\n } else {\n returnNode = body;\n }\n\n if (ALLOWED_ATTR.shadowroot || ALLOWED_ATTR.shadowrootmode) {\n /*\n AdoptNode() is not used because internal state is not reset\n (e.g. the past names map of a HTMLFormElement), this is safe\n in theory but we would rather not risk another attack vector.\n The state that is cloned by importNode() is explicitly defined\n by the specs.\n */\n returnNode = importNode.call(originalDocument, returnNode, true);\n }\n\n return returnNode;\n }\n\n let serializedHTML = WHOLE_DOCUMENT ? body.outerHTML : body.innerHTML;\n /* Serialize doctype if allowed */\n\n if (WHOLE_DOCUMENT && ALLOWED_TAGS['!doctype'] && body.ownerDocument && body.ownerDocument.doctype && body.ownerDocument.doctype.name && regExpTest(DOCTYPE_NAME, body.ownerDocument.doctype.name)) {\n serializedHTML = '\\n' + serializedHTML;\n }\n /* Sanitize final string template-safe */\n\n\n if (SAFE_FOR_TEMPLATES) {\n serializedHTML = stringReplace(serializedHTML, MUSTACHE_EXPR, ' ');\n serializedHTML = stringReplace(serializedHTML, ERB_EXPR, ' ');\n serializedHTML = stringReplace(serializedHTML, TMPLIT_EXPR, ' ');\n }\n\n return trustedTypesPolicy && RETURN_TRUSTED_TYPE ? trustedTypesPolicy.createHTML(serializedHTML) : serializedHTML;\n };\n /**\n * Public method to set the configuration once\n * setConfig\n *\n * @param {Object} cfg configuration object\n */\n\n\n DOMPurify.setConfig = function (cfg) {\n _parseConfig(cfg);\n\n SET_CONFIG = true;\n };\n /**\n * Public method to remove the configuration\n * clearConfig\n *\n */\n\n\n DOMPurify.clearConfig = function () {\n CONFIG = null;\n SET_CONFIG = false;\n };\n /**\n * Public method to check if an attribute value is valid.\n * Uses last set config, if any. Otherwise, uses config defaults.\n * isValidAttribute\n *\n * @param {string} tag Tag name of containing element.\n * @param {string} attr Attribute name.\n * @param {string} value Attribute value.\n * @return {Boolean} Returns true if `value` is valid. Otherwise, returns false.\n */\n\n\n DOMPurify.isValidAttribute = function (tag, attr, value) {\n /* Initialize shared config vars if necessary. */\n if (!CONFIG) {\n _parseConfig({});\n }\n\n const lcTag = transformCaseFunc(tag);\n const lcName = transformCaseFunc(attr);\n return _isValidAttribute(lcTag, lcName, value);\n };\n /**\n * AddHook\n * Public method to add DOMPurify hooks\n *\n * @param {String} entryPoint entry point for the hook to add\n * @param {Function} hookFunction function to execute\n */\n\n\n DOMPurify.addHook = function (entryPoint, hookFunction) {\n if (typeof hookFunction !== 'function') {\n return;\n }\n\n hooks[entryPoint] = hooks[entryPoint] || [];\n arrayPush(hooks[entryPoint], hookFunction);\n };\n /**\n * RemoveHook\n * Public method to remove a DOMPurify hook at a given entryPoint\n * (pops it from the stack of hooks if more are present)\n *\n * @param {String} entryPoint entry point for the hook to remove\n * @return {Function} removed(popped) hook\n */\n\n\n DOMPurify.removeHook = function (entryPoint) {\n if (hooks[entryPoint]) {\n return arrayPop(hooks[entryPoint]);\n }\n };\n /**\n * RemoveHooks\n * Public method to remove all DOMPurify hooks at a given entryPoint\n *\n * @param {String} entryPoint entry point for the hooks to remove\n */\n\n\n DOMPurify.removeHooks = function (entryPoint) {\n if (hooks[entryPoint]) {\n hooks[entryPoint] = [];\n }\n };\n /**\n * RemoveAllHooks\n * Public method to remove all DOMPurify hooks\n *\n */\n\n\n DOMPurify.removeAllHooks = function () {\n hooks = {};\n };\n\n return DOMPurify;\n }\n\n var purify = createDOMPurify();\n\n return purify;\n\n}));\n//# sourceMappingURL=purify.js.map\n","/**\n * Code refactored from Mozilla Developer Network:\n * https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/assign\n */\n\n'use strict';\n\nfunction assign(target, firstSource) {\n if (target === undefined || target === null) {\n throw new TypeError('Cannot convert first argument to object');\n }\n\n var to = Object(target);\n for (var i = 1; i < arguments.length; i++) {\n var nextSource = arguments[i];\n if (nextSource === undefined || nextSource === null) {\n continue;\n }\n\n var keysArray = Object.keys(Object(nextSource));\n for (var nextIndex = 0, len = keysArray.length; nextIndex < len; nextIndex++) {\n var nextKey = keysArray[nextIndex];\n var desc = Object.getOwnPropertyDescriptor(nextSource, nextKey);\n if (desc !== undefined && desc.enumerable) {\n to[nextKey] = nextSource[nextKey];\n }\n }\n }\n return to;\n}\n\nfunction polyfill() {\n if (!Object.assign) {\n Object.defineProperty(Object, 'assign', {\n enumerable: false,\n configurable: true,\n writable: true,\n value: assign\n });\n }\n}\n\nmodule.exports = {\n assign: assign,\n polyfill: polyfill\n};\n","/*!\n * escape-html\n * Copyright(c) 2012-2013 TJ Holowaychuk\n * Copyright(c) 2015 Andreas Lubbe\n * Copyright(c) 2015 Tiancheng \"Timothy\" Gu\n * MIT Licensed\n */\n\n'use strict';\n\n/**\n * Module variables.\n * @private\n */\n\nvar matchHtmlRegExp = /[\"'&<>]/;\n\n/**\n * Module exports.\n * @public\n */\n\nmodule.exports = escapeHtml;\n\n/**\n * Escape special characters in the given string of html.\n *\n * @param {string} string The string to escape for inserting into HTML\n * @return {string}\n * @public\n */\n\nfunction escapeHtml(string) {\n var str = '' + string;\n var match = matchHtmlRegExp.exec(str);\n\n if (!match) {\n return str;\n }\n\n var escape;\n var html = '';\n var index = 0;\n var lastIndex = 0;\n\n for (index = match.index; index < str.length; index++) {\n switch (str.charCodeAt(index)) {\n case 34: // \"\n escape = '"';\n break;\n case 38: // &\n escape = '&';\n break;\n case 39: // '\n escape = ''';\n break;\n case 60: // <\n escape = '<';\n break;\n case 62: // >\n escape = '>';\n break;\n default:\n continue;\n }\n\n if (lastIndex !== index) {\n html += str.substring(lastIndex, index);\n }\n\n lastIndex = index + 1;\n html += escape;\n }\n\n return lastIndex !== index\n ? html + str.substring(lastIndex, index)\n : html;\n}\n","// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n\n'use strict';\n\nvar R = typeof Reflect === 'object' ? Reflect : null\nvar ReflectApply = R && typeof R.apply === 'function'\n ? R.apply\n : function ReflectApply(target, receiver, args) {\n return Function.prototype.apply.call(target, receiver, args);\n }\n\nvar ReflectOwnKeys\nif (R && typeof R.ownKeys === 'function') {\n ReflectOwnKeys = R.ownKeys\n} else if (Object.getOwnPropertySymbols) {\n ReflectOwnKeys = function ReflectOwnKeys(target) {\n return Object.getOwnPropertyNames(target)\n .concat(Object.getOwnPropertySymbols(target));\n };\n} else {\n ReflectOwnKeys = function ReflectOwnKeys(target) {\n return Object.getOwnPropertyNames(target);\n };\n}\n\nfunction ProcessEmitWarning(warning) {\n if (console && console.warn) console.warn(warning);\n}\n\nvar NumberIsNaN = Number.isNaN || function NumberIsNaN(value) {\n return value !== value;\n}\n\nfunction EventEmitter() {\n EventEmitter.init.call(this);\n}\nmodule.exports = EventEmitter;\nmodule.exports.once = once;\n\n// Backwards-compat with node 0.10.x\nEventEmitter.EventEmitter = EventEmitter;\n\nEventEmitter.prototype._events = undefined;\nEventEmitter.prototype._eventsCount = 0;\nEventEmitter.prototype._maxListeners = undefined;\n\n// By default EventEmitters will print a warning if more than 10 listeners are\n// added to it. This is a useful default which helps finding memory leaks.\nvar defaultMaxListeners = 10;\n\nfunction checkListener(listener) {\n if (typeof listener !== 'function') {\n throw new TypeError('The \"listener\" argument must be of type Function. Received type ' + typeof listener);\n }\n}\n\nObject.defineProperty(EventEmitter, 'defaultMaxListeners', {\n enumerable: true,\n get: function() {\n return defaultMaxListeners;\n },\n set: function(arg) {\n if (typeof arg !== 'number' || arg < 0 || NumberIsNaN(arg)) {\n throw new RangeError('The value of \"defaultMaxListeners\" is out of range. It must be a non-negative number. Received ' + arg + '.');\n }\n defaultMaxListeners = arg;\n }\n});\n\nEventEmitter.init = function() {\n\n if (this._events === undefined ||\n this._events === Object.getPrototypeOf(this)._events) {\n this._events = Object.create(null);\n this._eventsCount = 0;\n }\n\n this._maxListeners = this._maxListeners || undefined;\n};\n\n// Obviously not all Emitters should be limited to 10. This function allows\n// that to be increased. Set to zero for unlimited.\nEventEmitter.prototype.setMaxListeners = function setMaxListeners(n) {\n if (typeof n !== 'number' || n < 0 || NumberIsNaN(n)) {\n throw new RangeError('The value of \"n\" is out of range. It must be a non-negative number. Received ' + n + '.');\n }\n this._maxListeners = n;\n return this;\n};\n\nfunction _getMaxListeners(that) {\n if (that._maxListeners === undefined)\n return EventEmitter.defaultMaxListeners;\n return that._maxListeners;\n}\n\nEventEmitter.prototype.getMaxListeners = function getMaxListeners() {\n return _getMaxListeners(this);\n};\n\nEventEmitter.prototype.emit = function emit(type) {\n var args = [];\n for (var i = 1; i < arguments.length; i++) args.push(arguments[i]);\n var doError = (type === 'error');\n\n var events = this._events;\n if (events !== undefined)\n doError = (doError && events.error === undefined);\n else if (!doError)\n return false;\n\n // If there is no 'error' event listener then throw.\n if (doError) {\n var er;\n if (args.length > 0)\n er = args[0];\n if (er instanceof Error) {\n // Note: The comments on the `throw` lines are intentional, they show\n // up in Node's output if this results in an unhandled exception.\n throw er; // Unhandled 'error' event\n }\n // At least give some kind of context to the user\n var err = new Error('Unhandled error.' + (er ? ' (' + er.message + ')' : ''));\n err.context = er;\n throw err; // Unhandled 'error' event\n }\n\n var handler = events[type];\n\n if (handler === undefined)\n return false;\n\n if (typeof handler === 'function') {\n ReflectApply(handler, this, args);\n } else {\n var len = handler.length;\n var listeners = arrayClone(handler, len);\n for (var i = 0; i < len; ++i)\n ReflectApply(listeners[i], this, args);\n }\n\n return true;\n};\n\nfunction _addListener(target, type, listener, prepend) {\n var m;\n var events;\n var existing;\n\n checkListener(listener);\n\n events = target._events;\n if (events === undefined) {\n events = target._events = Object.create(null);\n target._eventsCount = 0;\n } else {\n // To avoid recursion in the case that type === \"newListener\"! Before\n // adding it to the listeners, first emit \"newListener\".\n if (events.newListener !== undefined) {\n target.emit('newListener', type,\n listener.listener ? listener.listener : listener);\n\n // Re-assign `events` because a newListener handler could have caused the\n // this._events to be assigned to a new object\n events = target._events;\n }\n existing = events[type];\n }\n\n if (existing === undefined) {\n // Optimize the case of one listener. Don't need the extra array object.\n existing = events[type] = listener;\n ++target._eventsCount;\n } else {\n if (typeof existing === 'function') {\n // Adding the second element, need to change to array.\n existing = events[type] =\n prepend ? [listener, existing] : [existing, listener];\n // If we've already got an array, just append.\n } else if (prepend) {\n existing.unshift(listener);\n } else {\n existing.push(listener);\n }\n\n // Check for listener leak\n m = _getMaxListeners(target);\n if (m > 0 && existing.length > m && !existing.warned) {\n existing.warned = true;\n // No error code for this since it is a Warning\n // eslint-disable-next-line no-restricted-syntax\n var w = new Error('Possible EventEmitter memory leak detected. ' +\n existing.length + ' ' + String(type) + ' listeners ' +\n 'added. Use emitter.setMaxListeners() to ' +\n 'increase limit');\n w.name = 'MaxListenersExceededWarning';\n w.emitter = target;\n w.type = type;\n w.count = existing.length;\n ProcessEmitWarning(w);\n }\n }\n\n return target;\n}\n\nEventEmitter.prototype.addListener = function addListener(type, listener) {\n return _addListener(this, type, listener, false);\n};\n\nEventEmitter.prototype.on = EventEmitter.prototype.addListener;\n\nEventEmitter.prototype.prependListener =\n function prependListener(type, listener) {\n return _addListener(this, type, listener, true);\n };\n\nfunction onceWrapper() {\n if (!this.fired) {\n this.target.removeListener(this.type, this.wrapFn);\n this.fired = true;\n if (arguments.length === 0)\n return this.listener.call(this.target);\n return this.listener.apply(this.target, arguments);\n }\n}\n\nfunction _onceWrap(target, type, listener) {\n var state = { fired: false, wrapFn: undefined, target: target, type: type, listener: listener };\n var wrapped = onceWrapper.bind(state);\n wrapped.listener = listener;\n state.wrapFn = wrapped;\n return wrapped;\n}\n\nEventEmitter.prototype.once = function once(type, listener) {\n checkListener(listener);\n this.on(type, _onceWrap(this, type, listener));\n return this;\n};\n\nEventEmitter.prototype.prependOnceListener =\n function prependOnceListener(type, listener) {\n checkListener(listener);\n this.prependListener(type, _onceWrap(this, type, listener));\n return this;\n };\n\n// Emits a 'removeListener' event if and only if the listener was removed.\nEventEmitter.prototype.removeListener =\n function removeListener(type, listener) {\n var list, events, position, i, originalListener;\n\n checkListener(listener);\n\n events = this._events;\n if (events === undefined)\n return this;\n\n list = events[type];\n if (list === undefined)\n return this;\n\n if (list === listener || list.listener === listener) {\n if (--this._eventsCount === 0)\n this._events = Object.create(null);\n else {\n delete events[type];\n if (events.removeListener)\n this.emit('removeListener', type, list.listener || listener);\n }\n } else if (typeof list !== 'function') {\n position = -1;\n\n for (i = list.length - 1; i >= 0; i--) {\n if (list[i] === listener || list[i].listener === listener) {\n originalListener = list[i].listener;\n position = i;\n break;\n }\n }\n\n if (position < 0)\n return this;\n\n if (position === 0)\n list.shift();\n else {\n spliceOne(list, position);\n }\n\n if (list.length === 1)\n events[type] = list[0];\n\n if (events.removeListener !== undefined)\n this.emit('removeListener', type, originalListener || listener);\n }\n\n return this;\n };\n\nEventEmitter.prototype.off = EventEmitter.prototype.removeListener;\n\nEventEmitter.prototype.removeAllListeners =\n function removeAllListeners(type) {\n var listeners, events, i;\n\n events = this._events;\n if (events === undefined)\n return this;\n\n // not listening for removeListener, no need to emit\n if (events.removeListener === undefined) {\n if (arguments.length === 0) {\n this._events = Object.create(null);\n this._eventsCount = 0;\n } else if (events[type] !== undefined) {\n if (--this._eventsCount === 0)\n this._events = Object.create(null);\n else\n delete events[type];\n }\n return this;\n }\n\n // emit removeListener for all listeners on all events\n if (arguments.length === 0) {\n var keys = Object.keys(events);\n var key;\n for (i = 0; i < keys.length; ++i) {\n key = keys[i];\n if (key === 'removeListener') continue;\n this.removeAllListeners(key);\n }\n this.removeAllListeners('removeListener');\n this._events = Object.create(null);\n this._eventsCount = 0;\n return this;\n }\n\n listeners = events[type];\n\n if (typeof listeners === 'function') {\n this.removeListener(type, listeners);\n } else if (listeners !== undefined) {\n // LIFO order\n for (i = listeners.length - 1; i >= 0; i--) {\n this.removeListener(type, listeners[i]);\n }\n }\n\n return this;\n };\n\nfunction _listeners(target, type, unwrap) {\n var events = target._events;\n\n if (events === undefined)\n return [];\n\n var evlistener = events[type];\n if (evlistener === undefined)\n return [];\n\n if (typeof evlistener === 'function')\n return unwrap ? [evlistener.listener || evlistener] : [evlistener];\n\n return unwrap ?\n unwrapListeners(evlistener) : arrayClone(evlistener, evlistener.length);\n}\n\nEventEmitter.prototype.listeners = function listeners(type) {\n return _listeners(this, type, true);\n};\n\nEventEmitter.prototype.rawListeners = function rawListeners(type) {\n return _listeners(this, type, false);\n};\n\nEventEmitter.listenerCount = function(emitter, type) {\n if (typeof emitter.listenerCount === 'function') {\n return emitter.listenerCount(type);\n } else {\n return listenerCount.call(emitter, type);\n }\n};\n\nEventEmitter.prototype.listenerCount = listenerCount;\nfunction listenerCount(type) {\n var events = this._events;\n\n if (events !== undefined) {\n var evlistener = events[type];\n\n if (typeof evlistener === 'function') {\n return 1;\n } else if (evlistener !== undefined) {\n return evlistener.length;\n }\n }\n\n return 0;\n}\n\nEventEmitter.prototype.eventNames = function eventNames() {\n return this._eventsCount > 0 ? ReflectOwnKeys(this._events) : [];\n};\n\nfunction arrayClone(arr, n) {\n var copy = new Array(n);\n for (var i = 0; i < n; ++i)\n copy[i] = arr[i];\n return copy;\n}\n\nfunction spliceOne(list, index) {\n for (; index + 1 < list.length; index++)\n list[index] = list[index + 1];\n list.pop();\n}\n\nfunction unwrapListeners(arr) {\n var ret = new Array(arr.length);\n for (var i = 0; i < ret.length; ++i) {\n ret[i] = arr[i].listener || arr[i];\n }\n return ret;\n}\n\nfunction once(emitter, name) {\n return new Promise(function (resolve, reject) {\n function errorListener(err) {\n emitter.removeListener(name, resolver);\n reject(err);\n }\n\n function resolver() {\n if (typeof emitter.removeListener === 'function') {\n emitter.removeListener('error', errorListener);\n }\n resolve([].slice.call(arguments));\n };\n\n eventTargetAgnosticAddListener(emitter, name, resolver, { once: true });\n if (name !== 'error') {\n addErrorHandlerIfEventEmitter(emitter, errorListener, { once: true });\n }\n });\n}\n\nfunction addErrorHandlerIfEventEmitter(emitter, handler, flags) {\n if (typeof emitter.on === 'function') {\n eventTargetAgnosticAddListener(emitter, 'error', handler, flags);\n }\n}\n\nfunction eventTargetAgnosticAddListener(emitter, name, listener, flags) {\n if (typeof emitter.on === 'function') {\n if (flags.once) {\n emitter.once(name, listener);\n } else {\n emitter.on(name, listener);\n }\n } else if (typeof emitter.addEventListener === 'function') {\n // EventTarget does not have `error` event semantics like Node\n // EventEmitters, we do not listen for `error` events here.\n emitter.addEventListener(name, function wrapListener(arg) {\n // IE does not have builtin `{ once: true }` support so we\n // have to do it manually.\n if (flags.once) {\n emitter.removeEventListener(name, wrapListener);\n }\n listener(arg);\n });\n } else {\n throw new TypeError('The \"emitter\" argument must be of type EventEmitter. Received type ' + typeof emitter);\n }\n}\n","'use strict';\n\nvar isCallable = require('is-callable');\n\nvar toStr = Object.prototype.toString;\nvar hasOwnProperty = Object.prototype.hasOwnProperty;\n\nvar forEachArray = function forEachArray(array, iterator, receiver) {\n for (var i = 0, len = array.length; i < len; i++) {\n if (hasOwnProperty.call(array, i)) {\n if (receiver == null) {\n iterator(array[i], i, array);\n } else {\n iterator.call(receiver, array[i], i, array);\n }\n }\n }\n};\n\nvar forEachString = function forEachString(string, iterator, receiver) {\n for (var i = 0, len = string.length; i < len; i++) {\n // no such thing as a sparse string.\n if (receiver == null) {\n iterator(string.charAt(i), i, string);\n } else {\n iterator.call(receiver, string.charAt(i), i, string);\n }\n }\n};\n\nvar forEachObject = function forEachObject(object, iterator, receiver) {\n for (var k in object) {\n if (hasOwnProperty.call(object, k)) {\n if (receiver == null) {\n iterator(object[k], k, object);\n } else {\n iterator.call(receiver, object[k], k, object);\n }\n }\n }\n};\n\nvar forEach = function forEach(list, iterator, thisArg) {\n if (!isCallable(iterator)) {\n throw new TypeError('iterator must be a function');\n }\n\n var receiver;\n if (arguments.length >= 3) {\n receiver = thisArg;\n }\n\n if (toStr.call(list) === '[object Array]') {\n forEachArray(list, iterator, receiver);\n } else if (typeof list === 'string') {\n forEachString(list, iterator, receiver);\n } else {\n forEachObject(list, iterator, receiver);\n }\n};\n\nmodule.exports = forEach;\n","'use strict';\n\n/* eslint no-invalid-this: 1 */\n\nvar ERROR_MESSAGE = 'Function.prototype.bind called on incompatible ';\nvar slice = Array.prototype.slice;\nvar toStr = Object.prototype.toString;\nvar funcType = '[object Function]';\n\nmodule.exports = function bind(that) {\n var target = this;\n if (typeof target !== 'function' || toStr.call(target) !== funcType) {\n throw new TypeError(ERROR_MESSAGE + target);\n }\n var args = slice.call(arguments, 1);\n\n var bound;\n var binder = function () {\n if (this instanceof bound) {\n var result = target.apply(\n this,\n args.concat(slice.call(arguments))\n );\n if (Object(result) === result) {\n return result;\n }\n return this;\n } else {\n return target.apply(\n that,\n args.concat(slice.call(arguments))\n );\n }\n };\n\n var boundLength = Math.max(0, target.length - args.length);\n var boundArgs = [];\n for (var i = 0; i < boundLength; i++) {\n boundArgs.push('$' + i);\n }\n\n bound = Function('binder', 'return function (' + boundArgs.join(',') + '){ return binder.apply(this,arguments); }')(binder);\n\n if (target.prototype) {\n var Empty = function Empty() {};\n Empty.prototype = target.prototype;\n bound.prototype = new Empty();\n Empty.prototype = null;\n }\n\n return bound;\n};\n","'use strict';\n\nvar implementation = require('./implementation');\n\nmodule.exports = Function.prototype.bind || implementation;\n","'use strict';\n\nvar undefined;\n\nvar $SyntaxError = SyntaxError;\nvar $Function = Function;\nvar $TypeError = TypeError;\n\n// eslint-disable-next-line consistent-return\nvar getEvalledConstructor = function (expressionSyntax) {\n\ttry {\n\t\treturn $Function('\"use strict\"; return (' + expressionSyntax + ').constructor;')();\n\t} catch (e) {}\n};\n\nvar $gOPD = Object.getOwnPropertyDescriptor;\nif ($gOPD) {\n\ttry {\n\t\t$gOPD({}, '');\n\t} catch (e) {\n\t\t$gOPD = null; // this is IE 8, which has a broken gOPD\n\t}\n}\n\nvar throwTypeError = function () {\n\tthrow new $TypeError();\n};\nvar ThrowTypeError = $gOPD\n\t? (function () {\n\t\ttry {\n\t\t\t// eslint-disable-next-line no-unused-expressions, no-caller, no-restricted-properties\n\t\t\targuments.callee; // IE 8 does not throw here\n\t\t\treturn throwTypeError;\n\t\t} catch (calleeThrows) {\n\t\t\ttry {\n\t\t\t\t// IE 8 throws on Object.getOwnPropertyDescriptor(arguments, '')\n\t\t\t\treturn $gOPD(arguments, 'callee').get;\n\t\t\t} catch (gOPDthrows) {\n\t\t\t\treturn throwTypeError;\n\t\t\t}\n\t\t}\n\t}())\n\t: throwTypeError;\n\nvar hasSymbols = require('has-symbols')();\n\nvar getProto = Object.getPrototypeOf || function (x) { return x.__proto__; }; // eslint-disable-line no-proto\n\nvar needsEval = {};\n\nvar TypedArray = typeof Uint8Array === 'undefined' ? undefined : getProto(Uint8Array);\n\nvar INTRINSICS = {\n\t'%AggregateError%': typeof AggregateError === 'undefined' ? undefined : AggregateError,\n\t'%Array%': Array,\n\t'%ArrayBuffer%': typeof ArrayBuffer === 'undefined' ? undefined : ArrayBuffer,\n\t'%ArrayIteratorPrototype%': hasSymbols ? getProto([][Symbol.iterator]()) : undefined,\n\t'%AsyncFromSyncIteratorPrototype%': undefined,\n\t'%AsyncFunction%': needsEval,\n\t'%AsyncGenerator%': needsEval,\n\t'%AsyncGeneratorFunction%': needsEval,\n\t'%AsyncIteratorPrototype%': needsEval,\n\t'%Atomics%': typeof Atomics === 'undefined' ? undefined : Atomics,\n\t'%BigInt%': typeof BigInt === 'undefined' ? undefined : BigInt,\n\t'%Boolean%': Boolean,\n\t'%DataView%': typeof DataView === 'undefined' ? undefined : DataView,\n\t'%Date%': Date,\n\t'%decodeURI%': decodeURI,\n\t'%decodeURIComponent%': decodeURIComponent,\n\t'%encodeURI%': encodeURI,\n\t'%encodeURIComponent%': encodeURIComponent,\n\t'%Error%': Error,\n\t'%eval%': eval, // eslint-disable-line no-eval\n\t'%EvalError%': EvalError,\n\t'%Float32Array%': typeof Float32Array === 'undefined' ? undefined : Float32Array,\n\t'%Float64Array%': typeof Float64Array === 'undefined' ? undefined : Float64Array,\n\t'%FinalizationRegistry%': typeof FinalizationRegistry === 'undefined' ? undefined : FinalizationRegistry,\n\t'%Function%': $Function,\n\t'%GeneratorFunction%': needsEval,\n\t'%Int8Array%': typeof Int8Array === 'undefined' ? undefined : Int8Array,\n\t'%Int16Array%': typeof Int16Array === 'undefined' ? undefined : Int16Array,\n\t'%Int32Array%': typeof Int32Array === 'undefined' ? undefined : Int32Array,\n\t'%isFinite%': isFinite,\n\t'%isNaN%': isNaN,\n\t'%IteratorPrototype%': hasSymbols ? getProto(getProto([][Symbol.iterator]())) : undefined,\n\t'%JSON%': typeof JSON === 'object' ? JSON : undefined,\n\t'%Map%': typeof Map === 'undefined' ? undefined : Map,\n\t'%MapIteratorPrototype%': typeof Map === 'undefined' || !hasSymbols ? undefined : getProto(new Map()[Symbol.iterator]()),\n\t'%Math%': Math,\n\t'%Number%': Number,\n\t'%Object%': Object,\n\t'%parseFloat%': parseFloat,\n\t'%parseInt%': parseInt,\n\t'%Promise%': typeof Promise === 'undefined' ? undefined : Promise,\n\t'%Proxy%': typeof Proxy === 'undefined' ? undefined : Proxy,\n\t'%RangeError%': RangeError,\n\t'%ReferenceError%': ReferenceError,\n\t'%Reflect%': typeof Reflect === 'undefined' ? undefined : Reflect,\n\t'%RegExp%': RegExp,\n\t'%Set%': typeof Set === 'undefined' ? undefined : Set,\n\t'%SetIteratorPrototype%': typeof Set === 'undefined' || !hasSymbols ? undefined : getProto(new Set()[Symbol.iterator]()),\n\t'%SharedArrayBuffer%': typeof SharedArrayBuffer === 'undefined' ? undefined : SharedArrayBuffer,\n\t'%String%': String,\n\t'%StringIteratorPrototype%': hasSymbols ? getProto(''[Symbol.iterator]()) : undefined,\n\t'%Symbol%': hasSymbols ? Symbol : undefined,\n\t'%SyntaxError%': $SyntaxError,\n\t'%ThrowTypeError%': ThrowTypeError,\n\t'%TypedArray%': TypedArray,\n\t'%TypeError%': $TypeError,\n\t'%Uint8Array%': typeof Uint8Array === 'undefined' ? undefined : Uint8Array,\n\t'%Uint8ClampedArray%': typeof Uint8ClampedArray === 'undefined' ? undefined : Uint8ClampedArray,\n\t'%Uint16Array%': typeof Uint16Array === 'undefined' ? undefined : Uint16Array,\n\t'%Uint32Array%': typeof Uint32Array === 'undefined' ? undefined : Uint32Array,\n\t'%URIError%': URIError,\n\t'%WeakMap%': typeof WeakMap === 'undefined' ? undefined : WeakMap,\n\t'%WeakRef%': typeof WeakRef === 'undefined' ? undefined : WeakRef,\n\t'%WeakSet%': typeof WeakSet === 'undefined' ? undefined : WeakSet\n};\n\nvar doEval = function doEval(name) {\n\tvar value;\n\tif (name === '%AsyncFunction%') {\n\t\tvalue = getEvalledConstructor('async function () {}');\n\t} else if (name === '%GeneratorFunction%') {\n\t\tvalue = getEvalledConstructor('function* () {}');\n\t} else if (name === '%AsyncGeneratorFunction%') {\n\t\tvalue = getEvalledConstructor('async function* () {}');\n\t} else if (name === '%AsyncGenerator%') {\n\t\tvar fn = doEval('%AsyncGeneratorFunction%');\n\t\tif (fn) {\n\t\t\tvalue = fn.prototype;\n\t\t}\n\t} else if (name === '%AsyncIteratorPrototype%') {\n\t\tvar gen = doEval('%AsyncGenerator%');\n\t\tif (gen) {\n\t\t\tvalue = getProto(gen.prototype);\n\t\t}\n\t}\n\n\tINTRINSICS[name] = value;\n\n\treturn value;\n};\n\nvar LEGACY_ALIASES = {\n\t'%ArrayBufferPrototype%': ['ArrayBuffer', 'prototype'],\n\t'%ArrayPrototype%': ['Array', 'prototype'],\n\t'%ArrayProto_entries%': ['Array', 'prototype', 'entries'],\n\t'%ArrayProto_forEach%': ['Array', 'prototype', 'forEach'],\n\t'%ArrayProto_keys%': ['Array', 'prototype', 'keys'],\n\t'%ArrayProto_values%': ['Array', 'prototype', 'values'],\n\t'%AsyncFunctionPrototype%': ['AsyncFunction', 'prototype'],\n\t'%AsyncGenerator%': ['AsyncGeneratorFunction', 'prototype'],\n\t'%AsyncGeneratorPrototype%': ['AsyncGeneratorFunction', 'prototype', 'prototype'],\n\t'%BooleanPrototype%': ['Boolean', 'prototype'],\n\t'%DataViewPrototype%': ['DataView', 'prototype'],\n\t'%DatePrototype%': ['Date', 'prototype'],\n\t'%ErrorPrototype%': ['Error', 'prototype'],\n\t'%EvalErrorPrototype%': ['EvalError', 'prototype'],\n\t'%Float32ArrayPrototype%': ['Float32Array', 'prototype'],\n\t'%Float64ArrayPrototype%': ['Float64Array', 'prototype'],\n\t'%FunctionPrototype%': ['Function', 'prototype'],\n\t'%Generator%': ['GeneratorFunction', 'prototype'],\n\t'%GeneratorPrototype%': ['GeneratorFunction', 'prototype', 'prototype'],\n\t'%Int8ArrayPrototype%': ['Int8Array', 'prototype'],\n\t'%Int16ArrayPrototype%': ['Int16Array', 'prototype'],\n\t'%Int32ArrayPrototype%': ['Int32Array', 'prototype'],\n\t'%JSONParse%': ['JSON', 'parse'],\n\t'%JSONStringify%': ['JSON', 'stringify'],\n\t'%MapPrototype%': ['Map', 'prototype'],\n\t'%NumberPrototype%': ['Number', 'prototype'],\n\t'%ObjectPrototype%': ['Object', 'prototype'],\n\t'%ObjProto_toString%': ['Object', 'prototype', 'toString'],\n\t'%ObjProto_valueOf%': ['Object', 'prototype', 'valueOf'],\n\t'%PromisePrototype%': ['Promise', 'prototype'],\n\t'%PromiseProto_then%': ['Promise', 'prototype', 'then'],\n\t'%Promise_all%': ['Promise', 'all'],\n\t'%Promise_reject%': ['Promise', 'reject'],\n\t'%Promise_resolve%': ['Promise', 'resolve'],\n\t'%RangeErrorPrototype%': ['RangeError', 'prototype'],\n\t'%ReferenceErrorPrototype%': ['ReferenceError', 'prototype'],\n\t'%RegExpPrototype%': ['RegExp', 'prototype'],\n\t'%SetPrototype%': ['Set', 'prototype'],\n\t'%SharedArrayBufferPrototype%': ['SharedArrayBuffer', 'prototype'],\n\t'%StringPrototype%': ['String', 'prototype'],\n\t'%SymbolPrototype%': ['Symbol', 'prototype'],\n\t'%SyntaxErrorPrototype%': ['SyntaxError', 'prototype'],\n\t'%TypedArrayPrototype%': ['TypedArray', 'prototype'],\n\t'%TypeErrorPrototype%': ['TypeError', 'prototype'],\n\t'%Uint8ArrayPrototype%': ['Uint8Array', 'prototype'],\n\t'%Uint8ClampedArrayPrototype%': ['Uint8ClampedArray', 'prototype'],\n\t'%Uint16ArrayPrototype%': ['Uint16Array', 'prototype'],\n\t'%Uint32ArrayPrototype%': ['Uint32Array', 'prototype'],\n\t'%URIErrorPrototype%': ['URIError', 'prototype'],\n\t'%WeakMapPrototype%': ['WeakMap', 'prototype'],\n\t'%WeakSetPrototype%': ['WeakSet', 'prototype']\n};\n\nvar bind = require('function-bind');\nvar hasOwn = require('has');\nvar $concat = bind.call(Function.call, Array.prototype.concat);\nvar $spliceApply = bind.call(Function.apply, Array.prototype.splice);\nvar $replace = bind.call(Function.call, String.prototype.replace);\nvar $strSlice = bind.call(Function.call, String.prototype.slice);\n\n/* adapted from https://github.com/lodash/lodash/blob/4.17.15/dist/lodash.js#L6735-L6744 */\nvar rePropName = /[^%.[\\]]+|\\[(?:(-?\\d+(?:\\.\\d+)?)|([\"'])((?:(?!\\2)[^\\\\]|\\\\.)*?)\\2)\\]|(?=(?:\\.|\\[\\])(?:\\.|\\[\\]|%$))/g;\nvar reEscapeChar = /\\\\(\\\\)?/g; /** Used to match backslashes in property paths. */\nvar stringToPath = function stringToPath(string) {\n\tvar first = $strSlice(string, 0, 1);\n\tvar last = $strSlice(string, -1);\n\tif (first === '%' && last !== '%') {\n\t\tthrow new $SyntaxError('invalid intrinsic syntax, expected closing `%`');\n\t} else if (last === '%' && first !== '%') {\n\t\tthrow new $SyntaxError('invalid intrinsic syntax, expected opening `%`');\n\t}\n\tvar result = [];\n\t$replace(string, rePropName, function (match, number, quote, subString) {\n\t\tresult[result.length] = quote ? $replace(subString, reEscapeChar, '$1') : number || match;\n\t});\n\treturn result;\n};\n/* end adaptation */\n\nvar getBaseIntrinsic = function getBaseIntrinsic(name, allowMissing) {\n\tvar intrinsicName = name;\n\tvar alias;\n\tif (hasOwn(LEGACY_ALIASES, intrinsicName)) {\n\t\talias = LEGACY_ALIASES[intrinsicName];\n\t\tintrinsicName = '%' + alias[0] + '%';\n\t}\n\n\tif (hasOwn(INTRINSICS, intrinsicName)) {\n\t\tvar value = INTRINSICS[intrinsicName];\n\t\tif (value === needsEval) {\n\t\t\tvalue = doEval(intrinsicName);\n\t\t}\n\t\tif (typeof value === 'undefined' && !allowMissing) {\n\t\t\tthrow new $TypeError('intrinsic ' + name + ' exists, but is not available. Please file an issue!');\n\t\t}\n\n\t\treturn {\n\t\t\talias: alias,\n\t\t\tname: intrinsicName,\n\t\t\tvalue: value\n\t\t};\n\t}\n\n\tthrow new $SyntaxError('intrinsic ' + name + ' does not exist!');\n};\n\nmodule.exports = function GetIntrinsic(name, allowMissing) {\n\tif (typeof name !== 'string' || name.length === 0) {\n\t\tthrow new $TypeError('intrinsic name must be a non-empty string');\n\t}\n\tif (arguments.length > 1 && typeof allowMissing !== 'boolean') {\n\t\tthrow new $TypeError('\"allowMissing\" argument must be a boolean');\n\t}\n\n\tvar parts = stringToPath(name);\n\tvar intrinsicBaseName = parts.length > 0 ? parts[0] : '';\n\n\tvar intrinsic = getBaseIntrinsic('%' + intrinsicBaseName + '%', allowMissing);\n\tvar intrinsicRealName = intrinsic.name;\n\tvar value = intrinsic.value;\n\tvar skipFurtherCaching = false;\n\n\tvar alias = intrinsic.alias;\n\tif (alias) {\n\t\tintrinsicBaseName = alias[0];\n\t\t$spliceApply(parts, $concat([0, 1], alias));\n\t}\n\n\tfor (var i = 1, isOwn = true; i < parts.length; i += 1) {\n\t\tvar part = parts[i];\n\t\tvar first = $strSlice(part, 0, 1);\n\t\tvar last = $strSlice(part, -1);\n\t\tif (\n\t\t\t(\n\t\t\t\t(first === '\"' || first === \"'\" || first === '`')\n\t\t\t\t|| (last === '\"' || last === \"'\" || last === '`')\n\t\t\t)\n\t\t\t&& first !== last\n\t\t) {\n\t\t\tthrow new $SyntaxError('property names with quotes must have matching quotes');\n\t\t}\n\t\tif (part === 'constructor' || !isOwn) {\n\t\t\tskipFurtherCaching = true;\n\t\t}\n\n\t\tintrinsicBaseName += '.' + part;\n\t\tintrinsicRealName = '%' + intrinsicBaseName + '%';\n\n\t\tif (hasOwn(INTRINSICS, intrinsicRealName)) {\n\t\t\tvalue = INTRINSICS[intrinsicRealName];\n\t\t} else if (value != null) {\n\t\t\tif (!(part in value)) {\n\t\t\t\tif (!allowMissing) {\n\t\t\t\t\tthrow new $TypeError('base intrinsic for ' + name + ' exists, but the property is not available.');\n\t\t\t\t}\n\t\t\t\treturn void undefined;\n\t\t\t}\n\t\t\tif ($gOPD && (i + 1) >= parts.length) {\n\t\t\t\tvar desc = $gOPD(value, part);\n\t\t\t\tisOwn = !!desc;\n\n\t\t\t\t// By convention, when a data property is converted to an accessor\n\t\t\t\t// property to emulate a data property that does not suffer from\n\t\t\t\t// the override mistake, that accessor's getter is marked with\n\t\t\t\t// an `originalValue` property. Here, when we detect this, we\n\t\t\t\t// uphold the illusion by pretending to see that original data\n\t\t\t\t// property, i.e., returning the value rather than the getter\n\t\t\t\t// itself.\n\t\t\t\tif (isOwn && 'get' in desc && !('originalValue' in desc.get)) {\n\t\t\t\t\tvalue = desc.get;\n\t\t\t\t} else {\n\t\t\t\t\tvalue = value[part];\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\tisOwn = hasOwn(value, part);\n\t\t\t\tvalue = value[part];\n\t\t\t}\n\n\t\t\tif (isOwn && !skipFurtherCaching) {\n\t\t\t\tINTRINSICS[intrinsicRealName] = value;\n\t\t\t}\n\t\t}\n\t}\n\treturn value;\n};\n","'use strict';\n\nvar GetIntrinsic = require('get-intrinsic');\n\nvar $defineProperty = GetIntrinsic('%Object.defineProperty%', true);\n\nvar hasPropertyDescriptors = function hasPropertyDescriptors() {\n\tif ($defineProperty) {\n\t\ttry {\n\t\t\t$defineProperty({}, 'a', { value: 1 });\n\t\t\treturn true;\n\t\t} catch (e) {\n\t\t\t// IE 8 has a broken defineProperty\n\t\t\treturn false;\n\t\t}\n\t}\n\treturn false;\n};\n\nhasPropertyDescriptors.hasArrayLengthDefineBug = function hasArrayLengthDefineBug() {\n\t// node v0.6 has a bug where array lengths can be Set but not Defined\n\tif (!hasPropertyDescriptors()) {\n\t\treturn null;\n\t}\n\ttry {\n\t\treturn $defineProperty([], 'length', { value: 1 }).length !== 1;\n\t} catch (e) {\n\t\t// In Firefox 4-22, defining length on an array throws an exception.\n\t\treturn true;\n\t}\n};\n\nmodule.exports = hasPropertyDescriptors;\n","'use strict';\n\nvar origSymbol = typeof Symbol !== 'undefined' && Symbol;\nvar hasSymbolSham = require('./shams');\n\nmodule.exports = function hasNativeSymbols() {\n\tif (typeof origSymbol !== 'function') { return false; }\n\tif (typeof Symbol !== 'function') { return false; }\n\tif (typeof origSymbol('foo') !== 'symbol') { return false; }\n\tif (typeof Symbol('bar') !== 'symbol') { return false; }\n\n\treturn hasSymbolSham();\n};\n","'use strict';\n\n/* eslint complexity: [2, 18], max-statements: [2, 33] */\nmodule.exports = function hasSymbols() {\n\tif (typeof Symbol !== 'function' || typeof Object.getOwnPropertySymbols !== 'function') { return false; }\n\tif (typeof Symbol.iterator === 'symbol') { return true; }\n\n\tvar obj = {};\n\tvar sym = Symbol('test');\n\tvar symObj = Object(sym);\n\tif (typeof sym === 'string') { return false; }\n\n\tif (Object.prototype.toString.call(sym) !== '[object Symbol]') { return false; }\n\tif (Object.prototype.toString.call(symObj) !== '[object Symbol]') { return false; }\n\n\t// temp disabled per https://github.com/ljharb/object.assign/issues/17\n\t// if (sym instanceof Symbol) { return false; }\n\t// temp disabled per https://github.com/WebReflection/get-own-property-symbols/issues/4\n\t// if (!(symObj instanceof Symbol)) { return false; }\n\n\t// if (typeof Symbol.prototype.toString !== 'function') { return false; }\n\t// if (String(sym) !== Symbol.prototype.toString.call(sym)) { return false; }\n\n\tvar symVal = 42;\n\tobj[sym] = symVal;\n\tfor (sym in obj) { return false; } // eslint-disable-line no-restricted-syntax, no-unreachable-loop\n\tif (typeof Object.keys === 'function' && Object.keys(obj).length !== 0) { return false; }\n\n\tif (typeof Object.getOwnPropertyNames === 'function' && Object.getOwnPropertyNames(obj).length !== 0) { return false; }\n\n\tvar syms = Object.getOwnPropertySymbols(obj);\n\tif (syms.length !== 1 || syms[0] !== sym) { return false; }\n\n\tif (!Object.prototype.propertyIsEnumerable.call(obj, sym)) { return false; }\n\n\tif (typeof Object.getOwnPropertyDescriptor === 'function') {\n\t\tvar descriptor = Object.getOwnPropertyDescriptor(obj, sym);\n\t\tif (descriptor.value !== symVal || descriptor.enumerable !== true) { return false; }\n\t}\n\n\treturn true;\n};\n","'use strict';\n\nvar hasSymbols = require('has-symbols/shams');\n\nmodule.exports = function hasToStringTagShams() {\n\treturn hasSymbols() && !!Symbol.toStringTag;\n};\n","'use strict';\n\nvar bind = require('function-bind');\n\nmodule.exports = bind.call(Function.call, Object.prototype.hasOwnProperty);\n","var http = require('http')\nvar url = require('url')\n\nvar https = module.exports\n\nfor (var key in http) {\n if (http.hasOwnProperty(key)) https[key] = http[key]\n}\n\nhttps.request = function (params, cb) {\n params = validateParams(params)\n return http.request.call(this, params, cb)\n}\n\nhttps.get = function (params, cb) {\n params = validateParams(params)\n return http.get.call(this, params, cb)\n}\n\nfunction validateParams (params) {\n if (typeof params === 'string') {\n params = url.parse(params)\n }\n if (!params.protocol) {\n params.protocol = 'https:'\n }\n if (params.protocol !== 'https:') {\n throw new Error('Protocol \"' + params.protocol + '\" not supported. Expected \"https:\"')\n }\n return params\n}\n","/*! ieee754. BSD-3-Clause License. Feross Aboukhadijeh */\nexports.read = function (buffer, offset, isLE, mLen, nBytes) {\n var e, m\n var eLen = (nBytes * 8) - mLen - 1\n var eMax = (1 << eLen) - 1\n var eBias = eMax >> 1\n var nBits = -7\n var i = isLE ? (nBytes - 1) : 0\n var d = isLE ? -1 : 1\n var s = buffer[offset + i]\n\n i += d\n\n e = s & ((1 << (-nBits)) - 1)\n s >>= (-nBits)\n nBits += eLen\n for (; nBits > 0; e = (e * 256) + buffer[offset + i], i += d, nBits -= 8) {}\n\n m = e & ((1 << (-nBits)) - 1)\n e >>= (-nBits)\n nBits += mLen\n for (; nBits > 0; m = (m * 256) + buffer[offset + i], i += d, nBits -= 8) {}\n\n if (e === 0) {\n e = 1 - eBias\n } else if (e === eMax) {\n return m ? NaN : ((s ? -1 : 1) * Infinity)\n } else {\n m = m + Math.pow(2, mLen)\n e = e - eBias\n }\n return (s ? -1 : 1) * m * Math.pow(2, e - mLen)\n}\n\nexports.write = function (buffer, value, offset, isLE, mLen, nBytes) {\n var e, m, c\n var eLen = (nBytes * 8) - mLen - 1\n var eMax = (1 << eLen) - 1\n var eBias = eMax >> 1\n var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0)\n var i = isLE ? 0 : (nBytes - 1)\n var d = isLE ? 1 : -1\n var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0\n\n value = Math.abs(value)\n\n if (isNaN(value) || value === Infinity) {\n m = isNaN(value) ? 1 : 0\n e = eMax\n } else {\n e = Math.floor(Math.log(value) / Math.LN2)\n if (value * (c = Math.pow(2, -e)) < 1) {\n e--\n c *= 2\n }\n if (e + eBias >= 1) {\n value += rt / c\n } else {\n value += rt * Math.pow(2, 1 - eBias)\n }\n if (value * c >= 2) {\n e++\n c /= 2\n }\n\n if (e + eBias >= eMax) {\n m = 0\n e = eMax\n } else if (e + eBias >= 1) {\n m = ((value * c) - 1) * Math.pow(2, mLen)\n e = e + eBias\n } else {\n m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen)\n e = 0\n }\n }\n\n for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}\n\n e = (e << mLen) | m\n eLen += mLen\n for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}\n\n buffer[offset + i - d] |= s * 128\n}\n","if (typeof Object.create === 'function') {\n // implementation from standard node.js 'util' module\n module.exports = function inherits(ctor, superCtor) {\n if (superCtor) {\n ctor.super_ = superCtor\n ctor.prototype = Object.create(superCtor.prototype, {\n constructor: {\n value: ctor,\n enumerable: false,\n writable: true,\n configurable: true\n }\n })\n }\n };\n} else {\n // old school shim for old browsers\n module.exports = function inherits(ctor, superCtor) {\n if (superCtor) {\n ctor.super_ = superCtor\n var TempCtor = function () {}\n TempCtor.prototype = superCtor.prototype\n ctor.prototype = new TempCtor()\n ctor.prototype.constructor = ctor\n }\n }\n}\n","'use strict';\n\nvar hasToStringTag = require('has-tostringtag/shams')();\nvar callBound = require('call-bind/callBound');\n\nvar $toString = callBound('Object.prototype.toString');\n\nvar isStandardArguments = function isArguments(value) {\n\tif (hasToStringTag && value && typeof value === 'object' && Symbol.toStringTag in value) {\n\t\treturn false;\n\t}\n\treturn $toString(value) === '[object Arguments]';\n};\n\nvar isLegacyArguments = function isArguments(value) {\n\tif (isStandardArguments(value)) {\n\t\treturn true;\n\t}\n\treturn value !== null &&\n\t\ttypeof value === 'object' &&\n\t\ttypeof value.length === 'number' &&\n\t\tvalue.length >= 0 &&\n\t\t$toString(value) !== '[object Array]' &&\n\t\t$toString(value.callee) === '[object Function]';\n};\n\nvar supportsStandardArguments = (function () {\n\treturn isStandardArguments(arguments);\n}());\n\nisStandardArguments.isLegacyArguments = isLegacyArguments; // for tests\n\nmodule.exports = supportsStandardArguments ? isStandardArguments : isLegacyArguments;\n","/*!\n * Determine if an object is a Buffer\n *\n * @author Feross Aboukhadijeh \n * @license MIT\n */\n\n// The _isBuffer check is for Safari 5-7 support, because it's missing\n// Object.prototype.constructor. Remove this eventually\nmodule.exports = function (obj) {\n return obj != null && (isBuffer(obj) || isSlowBuffer(obj) || !!obj._isBuffer)\n}\n\nfunction isBuffer (obj) {\n return !!obj.constructor && typeof obj.constructor.isBuffer === 'function' && obj.constructor.isBuffer(obj)\n}\n\n// For Node v0.10 support. Remove this eventually.\nfunction isSlowBuffer (obj) {\n return typeof obj.readFloatLE === 'function' && typeof obj.slice === 'function' && isBuffer(obj.slice(0, 0))\n}\n","'use strict';\n\nvar fnToStr = Function.prototype.toString;\nvar reflectApply = typeof Reflect === 'object' && Reflect !== null && Reflect.apply;\nvar badArrayLike;\nvar isCallableMarker;\nif (typeof reflectApply === 'function' && typeof Object.defineProperty === 'function') {\n\ttry {\n\t\tbadArrayLike = Object.defineProperty({}, 'length', {\n\t\t\tget: function () {\n\t\t\t\tthrow isCallableMarker;\n\t\t\t}\n\t\t});\n\t\tisCallableMarker = {};\n\t\t// eslint-disable-next-line no-throw-literal\n\t\treflectApply(function () { throw 42; }, null, badArrayLike);\n\t} catch (_) {\n\t\tif (_ !== isCallableMarker) {\n\t\t\treflectApply = null;\n\t\t}\n\t}\n} else {\n\treflectApply = null;\n}\n\nvar constructorRegex = /^\\s*class\\b/;\nvar isES6ClassFn = function isES6ClassFunction(value) {\n\ttry {\n\t\tvar fnStr = fnToStr.call(value);\n\t\treturn constructorRegex.test(fnStr);\n\t} catch (e) {\n\t\treturn false; // not a function\n\t}\n};\n\nvar tryFunctionObject = function tryFunctionToStr(value) {\n\ttry {\n\t\tif (isES6ClassFn(value)) { return false; }\n\t\tfnToStr.call(value);\n\t\treturn true;\n\t} catch (e) {\n\t\treturn false;\n\t}\n};\nvar toStr = Object.prototype.toString;\nvar fnClass = '[object Function]';\nvar genClass = '[object GeneratorFunction]';\nvar hasToStringTag = typeof Symbol === 'function' && !!Symbol.toStringTag; // better: use `has-tostringtag`\n/* globals document: false */\nvar documentDotAll = typeof document === 'object' && typeof document.all === 'undefined' && document.all !== undefined ? document.all : {};\n\nmodule.exports = reflectApply\n\t? function isCallable(value) {\n\t\tif (value === documentDotAll) { return true; }\n\t\tif (!value) { return false; }\n\t\tif (typeof value !== 'function' && typeof value !== 'object') { return false; }\n\t\tif (typeof value === 'function' && !value.prototype) { return true; }\n\t\ttry {\n\t\t\treflectApply(value, null, badArrayLike);\n\t\t} catch (e) {\n\t\t\tif (e !== isCallableMarker) { return false; }\n\t\t}\n\t\treturn !isES6ClassFn(value);\n\t}\n\t: function isCallable(value) {\n\t\tif (value === documentDotAll) { return true; }\n\t\tif (!value) { return false; }\n\t\tif (typeof value !== 'function' && typeof value !== 'object') { return false; }\n\t\tif (typeof value === 'function' && !value.prototype) { return true; }\n\t\tif (hasToStringTag) { return tryFunctionObject(value); }\n\t\tif (isES6ClassFn(value)) { return false; }\n\t\tvar strClass = toStr.call(value);\n\t\treturn strClass === fnClass || strClass === genClass;\n\t};\n","'use strict';\n\nvar toStr = Object.prototype.toString;\nvar fnToStr = Function.prototype.toString;\nvar isFnRegex = /^\\s*(?:function)?\\*/;\nvar hasToStringTag = require('has-tostringtag/shams')();\nvar getProto = Object.getPrototypeOf;\nvar getGeneratorFunc = function () { // eslint-disable-line consistent-return\n\tif (!hasToStringTag) {\n\t\treturn false;\n\t}\n\ttry {\n\t\treturn Function('return function*() {}')();\n\t} catch (e) {\n\t}\n};\nvar GeneratorFunction;\n\nmodule.exports = function isGeneratorFunction(fn) {\n\tif (typeof fn !== 'function') {\n\t\treturn false;\n\t}\n\tif (isFnRegex.test(fnToStr.call(fn))) {\n\t\treturn true;\n\t}\n\tif (!hasToStringTag) {\n\t\tvar str = toStr.call(fn);\n\t\treturn str === '[object GeneratorFunction]';\n\t}\n\tif (!getProto) {\n\t\treturn false;\n\t}\n\tif (typeof GeneratorFunction === 'undefined') {\n\t\tvar generatorFunc = getGeneratorFunc();\n\t\tGeneratorFunction = generatorFunc ? getProto(generatorFunc) : false;\n\t}\n\treturn getProto(fn) === GeneratorFunction;\n};\n","'use strict';\n\n/* http://www.ecma-international.org/ecma-262/6.0/#sec-number.isnan */\n\nmodule.exports = function isNaN(value) {\n\treturn value !== value;\n};\n","'use strict';\n\nvar callBind = require('call-bind');\nvar define = require('define-properties');\n\nvar implementation = require('./implementation');\nvar getPolyfill = require('./polyfill');\nvar shim = require('./shim');\n\nvar polyfill = callBind(getPolyfill(), Number);\n\n/* http://www.ecma-international.org/ecma-262/6.0/#sec-number.isnan */\n\ndefine(polyfill, {\n\tgetPolyfill: getPolyfill,\n\timplementation: implementation,\n\tshim: shim\n});\n\nmodule.exports = polyfill;\n","'use strict';\n\nvar implementation = require('./implementation');\n\nmodule.exports = function getPolyfill() {\n\tif (Number.isNaN && Number.isNaN(NaN) && !Number.isNaN('a')) {\n\t\treturn Number.isNaN;\n\t}\n\treturn implementation;\n};\n","'use strict';\n\nvar define = require('define-properties');\nvar getPolyfill = require('./polyfill');\n\n/* http://www.ecma-international.org/ecma-262/6.0/#sec-number.isnan */\n\nmodule.exports = function shimNumberIsNaN() {\n\tvar polyfill = getPolyfill();\n\tdefine(Number, { isNaN: polyfill }, {\n\t\tisNaN: function testIsNaN() {\n\t\t\treturn Number.isNaN !== polyfill;\n\t\t}\n\t});\n\treturn polyfill;\n};\n","'use strict';\n\nvar forEach = require('for-each');\nvar availableTypedArrays = require('available-typed-arrays');\nvar callBound = require('call-bind/callBound');\n\nvar $toString = callBound('Object.prototype.toString');\nvar hasToStringTag = require('has-tostringtag/shams')();\n\nvar g = typeof globalThis === 'undefined' ? global : globalThis;\nvar typedArrays = availableTypedArrays();\n\nvar $indexOf = callBound('Array.prototype.indexOf', true) || function indexOf(array, value) {\n\tfor (var i = 0; i < array.length; i += 1) {\n\t\tif (array[i] === value) {\n\t\t\treturn i;\n\t\t}\n\t}\n\treturn -1;\n};\nvar $slice = callBound('String.prototype.slice');\nvar toStrTags = {};\nvar gOPD = require('es-abstract/helpers/getOwnPropertyDescriptor');\nvar getPrototypeOf = Object.getPrototypeOf; // require('getprototypeof');\nif (hasToStringTag && gOPD && getPrototypeOf) {\n\tforEach(typedArrays, function (typedArray) {\n\t\tvar arr = new g[typedArray]();\n\t\tif (Symbol.toStringTag in arr) {\n\t\t\tvar proto = getPrototypeOf(arr);\n\t\t\tvar descriptor = gOPD(proto, Symbol.toStringTag);\n\t\t\tif (!descriptor) {\n\t\t\t\tvar superProto = getPrototypeOf(proto);\n\t\t\t\tdescriptor = gOPD(superProto, Symbol.toStringTag);\n\t\t\t}\n\t\t\ttoStrTags[typedArray] = descriptor.get;\n\t\t}\n\t});\n}\n\nvar tryTypedArrays = function tryAllTypedArrays(value) {\n\tvar anyTrue = false;\n\tforEach(toStrTags, function (getter, typedArray) {\n\t\tif (!anyTrue) {\n\t\t\ttry {\n\t\t\t\tanyTrue = getter.call(value) === typedArray;\n\t\t\t} catch (e) { /**/ }\n\t\t}\n\t});\n\treturn anyTrue;\n};\n\nmodule.exports = function isTypedArray(value) {\n\tif (!value || typeof value !== 'object') { return false; }\n\tif (!hasToStringTag || !(Symbol.toStringTag in value)) {\n\t\tvar tag = $slice($toString(value), 8, -1);\n\t\treturn $indexOf(typedArrays, tag) > -1;\n\t}\n\tif (!gOPD) { return false; }\n\treturn tryTypedArrays(value);\n};\n","(function(){\r\n var crypt = require('crypt'),\r\n utf8 = require('charenc').utf8,\r\n isBuffer = require('is-buffer'),\r\n bin = require('charenc').bin,\r\n\r\n // The core\r\n md5 = function (message, options) {\r\n // Convert to byte array\r\n if (message.constructor == String)\r\n if (options && options.encoding === 'binary')\r\n message = bin.stringToBytes(message);\r\n else\r\n message = utf8.stringToBytes(message);\r\n else if (isBuffer(message))\r\n message = Array.prototype.slice.call(message, 0);\r\n else if (!Array.isArray(message) && message.constructor !== Uint8Array)\r\n message = message.toString();\r\n // else, assume byte array already\r\n\r\n var m = crypt.bytesToWords(message),\r\n l = message.length * 8,\r\n a = 1732584193,\r\n b = -271733879,\r\n c = -1732584194,\r\n d = 271733878;\r\n\r\n // Swap endian\r\n for (var i = 0; i < m.length; i++) {\r\n m[i] = ((m[i] << 8) | (m[i] >>> 24)) & 0x00FF00FF |\r\n ((m[i] << 24) | (m[i] >>> 8)) & 0xFF00FF00;\r\n }\r\n\r\n // Padding\r\n m[l >>> 5] |= 0x80 << (l % 32);\r\n m[(((l + 64) >>> 9) << 4) + 14] = l;\r\n\r\n // Method shortcuts\r\n var FF = md5._ff,\r\n GG = md5._gg,\r\n HH = md5._hh,\r\n II = md5._ii;\r\n\r\n for (var i = 0; i < m.length; i += 16) {\r\n\r\n var aa = a,\r\n bb = b,\r\n cc = c,\r\n dd = d;\r\n\r\n a = FF(a, b, c, d, m[i+ 0], 7, -680876936);\r\n d = FF(d, a, b, c, m[i+ 1], 12, -389564586);\r\n c = FF(c, d, a, b, m[i+ 2], 17, 606105819);\r\n b = FF(b, c, d, a, m[i+ 3], 22, -1044525330);\r\n a = FF(a, b, c, d, m[i+ 4], 7, -176418897);\r\n d = FF(d, a, b, c, m[i+ 5], 12, 1200080426);\r\n c = FF(c, d, a, b, m[i+ 6], 17, -1473231341);\r\n b = FF(b, c, d, a, m[i+ 7], 22, -45705983);\r\n a = FF(a, b, c, d, m[i+ 8], 7, 1770035416);\r\n d = FF(d, a, b, c, m[i+ 9], 12, -1958414417);\r\n c = FF(c, d, a, b, m[i+10], 17, -42063);\r\n b = FF(b, c, d, a, m[i+11], 22, -1990404162);\r\n a = FF(a, b, c, d, m[i+12], 7, 1804603682);\r\n d = FF(d, a, b, c, m[i+13], 12, -40341101);\r\n c = FF(c, d, a, b, m[i+14], 17, -1502002290);\r\n b = FF(b, c, d, a, m[i+15], 22, 1236535329);\r\n\r\n a = GG(a, b, c, d, m[i+ 1], 5, -165796510);\r\n d = GG(d, a, b, c, m[i+ 6], 9, -1069501632);\r\n c = GG(c, d, a, b, m[i+11], 14, 643717713);\r\n b = GG(b, c, d, a, m[i+ 0], 20, -373897302);\r\n a = GG(a, b, c, d, m[i+ 5], 5, -701558691);\r\n d = GG(d, a, b, c, m[i+10], 9, 38016083);\r\n c = GG(c, d, a, b, m[i+15], 14, -660478335);\r\n b = GG(b, c, d, a, m[i+ 4], 20, -405537848);\r\n a = GG(a, b, c, d, m[i+ 9], 5, 568446438);\r\n d = GG(d, a, b, c, m[i+14], 9, -1019803690);\r\n c = GG(c, d, a, b, m[i+ 3], 14, -187363961);\r\n b = GG(b, c, d, a, m[i+ 8], 20, 1163531501);\r\n a = GG(a, b, c, d, m[i+13], 5, -1444681467);\r\n d = GG(d, a, b, c, m[i+ 2], 9, -51403784);\r\n c = GG(c, d, a, b, m[i+ 7], 14, 1735328473);\r\n b = GG(b, c, d, a, m[i+12], 20, -1926607734);\r\n\r\n a = HH(a, b, c, d, m[i+ 5], 4, -378558);\r\n d = HH(d, a, b, c, m[i+ 8], 11, -2022574463);\r\n c = HH(c, d, a, b, m[i+11], 16, 1839030562);\r\n b = HH(b, c, d, a, m[i+14], 23, -35309556);\r\n a = HH(a, b, c, d, m[i+ 1], 4, -1530992060);\r\n d = HH(d, a, b, c, m[i+ 4], 11, 1272893353);\r\n c = HH(c, d, a, b, m[i+ 7], 16, -155497632);\r\n b = HH(b, c, d, a, m[i+10], 23, -1094730640);\r\n a = HH(a, b, c, d, m[i+13], 4, 681279174);\r\n d = HH(d, a, b, c, m[i+ 0], 11, -358537222);\r\n c = HH(c, d, a, b, m[i+ 3], 16, -722521979);\r\n b = HH(b, c, d, a, m[i+ 6], 23, 76029189);\r\n a = HH(a, b, c, d, m[i+ 9], 4, -640364487);\r\n d = HH(d, a, b, c, m[i+12], 11, -421815835);\r\n c = HH(c, d, a, b, m[i+15], 16, 530742520);\r\n b = HH(b, c, d, a, m[i+ 2], 23, -995338651);\r\n\r\n a = II(a, b, c, d, m[i+ 0], 6, -198630844);\r\n d = II(d, a, b, c, m[i+ 7], 10, 1126891415);\r\n c = II(c, d, a, b, m[i+14], 15, -1416354905);\r\n b = II(b, c, d, a, m[i+ 5], 21, -57434055);\r\n a = II(a, b, c, d, m[i+12], 6, 1700485571);\r\n d = II(d, a, b, c, m[i+ 3], 10, -1894986606);\r\n c = II(c, d, a, b, m[i+10], 15, -1051523);\r\n b = II(b, c, d, a, m[i+ 1], 21, -2054922799);\r\n a = II(a, b, c, d, m[i+ 8], 6, 1873313359);\r\n d = II(d, a, b, c, m[i+15], 10, -30611744);\r\n c = II(c, d, a, b, m[i+ 6], 15, -1560198380);\r\n b = II(b, c, d, a, m[i+13], 21, 1309151649);\r\n a = II(a, b, c, d, m[i+ 4], 6, -145523070);\r\n d = II(d, a, b, c, m[i+11], 10, -1120210379);\r\n c = II(c, d, a, b, m[i+ 2], 15, 718787259);\r\n b = II(b, c, d, a, m[i+ 9], 21, -343485551);\r\n\r\n a = (a + aa) >>> 0;\r\n b = (b + bb) >>> 0;\r\n c = (c + cc) >>> 0;\r\n d = (d + dd) >>> 0;\r\n }\r\n\r\n return crypt.endian([a, b, c, d]);\r\n };\r\n\r\n // Auxiliary functions\r\n md5._ff = function (a, b, c, d, x, s, t) {\r\n var n = a + (b & c | ~b & d) + (x >>> 0) + t;\r\n return ((n << s) | (n >>> (32 - s))) + b;\r\n };\r\n md5._gg = function (a, b, c, d, x, s, t) {\r\n var n = a + (b & d | c & ~d) + (x >>> 0) + t;\r\n return ((n << s) | (n >>> (32 - s))) + b;\r\n };\r\n md5._hh = function (a, b, c, d, x, s, t) {\r\n var n = a + (b ^ c ^ d) + (x >>> 0) + t;\r\n return ((n << s) | (n >>> (32 - s))) + b;\r\n };\r\n md5._ii = function (a, b, c, d, x, s, t) {\r\n var n = a + (c ^ (b | ~d)) + (x >>> 0) + t;\r\n return ((n << s) | (n >>> (32 - s))) + b;\r\n };\r\n\r\n // Package private blocksize\r\n md5._blocksize = 16;\r\n md5._digestsize = 16;\r\n\r\n module.exports = function (message, options) {\r\n if (message === undefined || message === null)\r\n throw new Error('Illegal argument ' + message);\r\n\r\n var digestbytes = crypt.wordsToBytes(md5(message, options));\r\n return options && options.asBytes ? digestbytes :\r\n options && options.asString ? bin.bytesToString(digestbytes) :\r\n crypt.bytesToHex(digestbytes);\r\n };\r\n\r\n})();\r\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\n/**\n * Returns the user's locale\n *\n * @since 15.0.0\n */\nfunction getLocale() {\n return OC.getLocale();\n}\nexports.getLocale = getLocale;\n/**\n * Translate a string\n *\n * @param {String} app the id of the app for which to translate the string\n * @param {String} text the string to translate\n * @param {Object} vars map of placeholder key to value\n * @param {Number} number to replace %n with\n * @param {OC.L10N.TranslationOptions} [options] options object\n * @return {String}\n *\n * @since 15.0.0\n */\nfunction translate(app, text, vars, count, options) {\n return OC.L10N.translate(app, text, vars, count, options);\n}\nexports.translate = translate;\n/**\n * Translate a plural string\n *\n * @param {string} app the id of the app for which to translate the string\n * @param {string} textSingular the string to translate for exactly one object\n * @param {string} textPlural the string to translate for n objects\n * @param {number} count number to determine whether to use singular or plural\n * @param {Object} vars of placeholder key to value\n * @param {OC.L10N.TranslationOptions} options options object\n * @return {String}\n *\n * @since 15.0.0\n */\nfunction translatePlural(app, textSingular, textPlural, count, vars, options) {\n return OC.L10N.translatePlural(app, textSingular, textPlural, count, vars, options);\n}\nexports.translatePlural = translatePlural;\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\n/**\n * @since 15.0.0\n */\nfunction getRootUrl() {\n return OC.getRootPath();\n}\nexports.getRootUrl = getRootUrl;\n/**\n * @since 15.0.0\n */\nfunction generateUrl(url, params, options) {\n return OC.generateUrl(url, params, options);\n}\nexports.generateUrl = generateUrl;\n/**\n * @since 15.0.0\n */\nfunction generateFilePath(app, type, file) {\n return OC.filePath(app, type, file);\n}\nexports.generateFilePath = generateFilePath;\n/**\n * @since 15.0.0\n */\nfunction generateRemoteUrl(service) {\n return OC.linkToRemote(service);\n}\nexports.generateRemoteUrl = generateRemoteUrl;\n/**\n * @since 15.0.0\n */\nfunction generateOcsUrl(service, version) {\n if (version === void 0) { version = 2; }\n return OC.linkToOCS(service, version);\n}\nexports.generateOcsUrl = generateOcsUrl;\n","'use strict';\n\nvar numberIsNaN = function (value) {\n\treturn value !== value;\n};\n\nmodule.exports = function is(a, b) {\n\tif (a === 0 && b === 0) {\n\t\treturn 1 / a === 1 / b;\n\t}\n\tif (a === b) {\n\t\treturn true;\n\t}\n\tif (numberIsNaN(a) && numberIsNaN(b)) {\n\t\treturn true;\n\t}\n\treturn false;\n};\n\n","'use strict';\n\nvar define = require('define-properties');\nvar callBind = require('call-bind');\n\nvar implementation = require('./implementation');\nvar getPolyfill = require('./polyfill');\nvar shim = require('./shim');\n\nvar polyfill = callBind(getPolyfill(), Object);\n\ndefine(polyfill, {\n\tgetPolyfill: getPolyfill,\n\timplementation: implementation,\n\tshim: shim\n});\n\nmodule.exports = polyfill;\n","'use strict';\n\nvar implementation = require('./implementation');\n\nmodule.exports = function getPolyfill() {\n\treturn typeof Object.is === 'function' ? Object.is : implementation;\n};\n","'use strict';\n\nvar getPolyfill = require('./polyfill');\nvar define = require('define-properties');\n\nmodule.exports = function shimObjectIs() {\n\tvar polyfill = getPolyfill();\n\tdefine(Object, { is: polyfill }, {\n\t\tis: function testObjectIs() {\n\t\t\treturn Object.is !== polyfill;\n\t\t}\n\t});\n\treturn polyfill;\n};\n","'use strict';\n\nvar keysShim;\nif (!Object.keys) {\n\t// modified from https://github.com/es-shims/es5-shim\n\tvar has = Object.prototype.hasOwnProperty;\n\tvar toStr = Object.prototype.toString;\n\tvar isArgs = require('./isArguments'); // eslint-disable-line global-require\n\tvar isEnumerable = Object.prototype.propertyIsEnumerable;\n\tvar hasDontEnumBug = !isEnumerable.call({ toString: null }, 'toString');\n\tvar hasProtoEnumBug = isEnumerable.call(function () {}, 'prototype');\n\tvar dontEnums = [\n\t\t'toString',\n\t\t'toLocaleString',\n\t\t'valueOf',\n\t\t'hasOwnProperty',\n\t\t'isPrototypeOf',\n\t\t'propertyIsEnumerable',\n\t\t'constructor'\n\t];\n\tvar equalsConstructorPrototype = function (o) {\n\t\tvar ctor = o.constructor;\n\t\treturn ctor && ctor.prototype === o;\n\t};\n\tvar excludedKeys = {\n\t\t$applicationCache: true,\n\t\t$console: true,\n\t\t$external: true,\n\t\t$frame: true,\n\t\t$frameElement: true,\n\t\t$frames: true,\n\t\t$innerHeight: true,\n\t\t$innerWidth: true,\n\t\t$onmozfullscreenchange: true,\n\t\t$onmozfullscreenerror: true,\n\t\t$outerHeight: true,\n\t\t$outerWidth: true,\n\t\t$pageXOffset: true,\n\t\t$pageYOffset: true,\n\t\t$parent: true,\n\t\t$scrollLeft: true,\n\t\t$scrollTop: true,\n\t\t$scrollX: true,\n\t\t$scrollY: true,\n\t\t$self: true,\n\t\t$webkitIndexedDB: true,\n\t\t$webkitStorageInfo: true,\n\t\t$window: true\n\t};\n\tvar hasAutomationEqualityBug = (function () {\n\t\t/* global window */\n\t\tif (typeof window === 'undefined') { return false; }\n\t\tfor (var k in window) {\n\t\t\ttry {\n\t\t\t\tif (!excludedKeys['$' + k] && has.call(window, k) && window[k] !== null && typeof window[k] === 'object') {\n\t\t\t\t\ttry {\n\t\t\t\t\t\tequalsConstructorPrototype(window[k]);\n\t\t\t\t\t} catch (e) {\n\t\t\t\t\t\treturn true;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t} catch (e) {\n\t\t\t\treturn true;\n\t\t\t}\n\t\t}\n\t\treturn false;\n\t}());\n\tvar equalsConstructorPrototypeIfNotBuggy = function (o) {\n\t\t/* global window */\n\t\tif (typeof window === 'undefined' || !hasAutomationEqualityBug) {\n\t\t\treturn equalsConstructorPrototype(o);\n\t\t}\n\t\ttry {\n\t\t\treturn equalsConstructorPrototype(o);\n\t\t} catch (e) {\n\t\t\treturn false;\n\t\t}\n\t};\n\n\tkeysShim = function keys(object) {\n\t\tvar isObject = object !== null && typeof object === 'object';\n\t\tvar isFunction = toStr.call(object) === '[object Function]';\n\t\tvar isArguments = isArgs(object);\n\t\tvar isString = isObject && toStr.call(object) === '[object String]';\n\t\tvar theKeys = [];\n\n\t\tif (!isObject && !isFunction && !isArguments) {\n\t\t\tthrow new TypeError('Object.keys called on a non-object');\n\t\t}\n\n\t\tvar skipProto = hasProtoEnumBug && isFunction;\n\t\tif (isString && object.length > 0 && !has.call(object, 0)) {\n\t\t\tfor (var i = 0; i < object.length; ++i) {\n\t\t\t\ttheKeys.push(String(i));\n\t\t\t}\n\t\t}\n\n\t\tif (isArguments && object.length > 0) {\n\t\t\tfor (var j = 0; j < object.length; ++j) {\n\t\t\t\ttheKeys.push(String(j));\n\t\t\t}\n\t\t} else {\n\t\t\tfor (var name in object) {\n\t\t\t\tif (!(skipProto && name === 'prototype') && has.call(object, name)) {\n\t\t\t\t\ttheKeys.push(String(name));\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tif (hasDontEnumBug) {\n\t\t\tvar skipConstructor = equalsConstructorPrototypeIfNotBuggy(object);\n\n\t\t\tfor (var k = 0; k < dontEnums.length; ++k) {\n\t\t\t\tif (!(skipConstructor && dontEnums[k] === 'constructor') && has.call(object, dontEnums[k])) {\n\t\t\t\t\ttheKeys.push(dontEnums[k]);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\treturn theKeys;\n\t};\n}\nmodule.exports = keysShim;\n","'use strict';\n\nvar slice = Array.prototype.slice;\nvar isArgs = require('./isArguments');\n\nvar origKeys = Object.keys;\nvar keysShim = origKeys ? function keys(o) { return origKeys(o); } : require('./implementation');\n\nvar originalKeys = Object.keys;\n\nkeysShim.shim = function shimObjectKeys() {\n\tif (Object.keys) {\n\t\tvar keysWorksWithArguments = (function () {\n\t\t\t// Safari 5.0 bug\n\t\t\tvar args = Object.keys(arguments);\n\t\t\treturn args && args.length === arguments.length;\n\t\t}(1, 2));\n\t\tif (!keysWorksWithArguments) {\n\t\t\tObject.keys = function keys(object) { // eslint-disable-line func-name-matching\n\t\t\t\tif (isArgs(object)) {\n\t\t\t\t\treturn originalKeys(slice.call(object));\n\t\t\t\t}\n\t\t\t\treturn originalKeys(object);\n\t\t\t};\n\t\t}\n\t} else {\n\t\tObject.keys = keysShim;\n\t}\n\treturn Object.keys || keysShim;\n};\n\nmodule.exports = keysShim;\n","'use strict';\n\nvar toStr = Object.prototype.toString;\n\nmodule.exports = function isArguments(value) {\n\tvar str = toStr.call(value);\n\tvar isArgs = str === '[object Arguments]';\n\tif (!isArgs) {\n\t\tisArgs = str !== '[object Array]' &&\n\t\t\tvalue !== null &&\n\t\t\ttypeof value === 'object' &&\n\t\t\ttypeof value.length === 'number' &&\n\t\t\tvalue.length >= 0 &&\n\t\t\ttoStr.call(value.callee) === '[object Function]';\n\t}\n\treturn isArgs;\n};\n","// 'path' module extracted from Node.js v8.11.1 (only the posix part)\n// transplited with Babel\n\n// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n\n'use strict';\n\nfunction assertPath(path) {\n if (typeof path !== 'string') {\n throw new TypeError('Path must be a string. Received ' + JSON.stringify(path));\n }\n}\n\n// Resolves . and .. elements in a path with directory names\nfunction normalizeStringPosix(path, allowAboveRoot) {\n var res = '';\n var lastSegmentLength = 0;\n var lastSlash = -1;\n var dots = 0;\n var code;\n for (var i = 0; i <= path.length; ++i) {\n if (i < path.length)\n code = path.charCodeAt(i);\n else if (code === 47 /*/*/)\n break;\n else\n code = 47 /*/*/;\n if (code === 47 /*/*/) {\n if (lastSlash === i - 1 || dots === 1) {\n // NOOP\n } else if (lastSlash !== i - 1 && dots === 2) {\n if (res.length < 2 || lastSegmentLength !== 2 || res.charCodeAt(res.length - 1) !== 46 /*.*/ || res.charCodeAt(res.length - 2) !== 46 /*.*/) {\n if (res.length > 2) {\n var lastSlashIndex = res.lastIndexOf('/');\n if (lastSlashIndex !== res.length - 1) {\n if (lastSlashIndex === -1) {\n res = '';\n lastSegmentLength = 0;\n } else {\n res = res.slice(0, lastSlashIndex);\n lastSegmentLength = res.length - 1 - res.lastIndexOf('/');\n }\n lastSlash = i;\n dots = 0;\n continue;\n }\n } else if (res.length === 2 || res.length === 1) {\n res = '';\n lastSegmentLength = 0;\n lastSlash = i;\n dots = 0;\n continue;\n }\n }\n if (allowAboveRoot) {\n if (res.length > 0)\n res += '/..';\n else\n res = '..';\n lastSegmentLength = 2;\n }\n } else {\n if (res.length > 0)\n res += '/' + path.slice(lastSlash + 1, i);\n else\n res = path.slice(lastSlash + 1, i);\n lastSegmentLength = i - lastSlash - 1;\n }\n lastSlash = i;\n dots = 0;\n } else if (code === 46 /*.*/ && dots !== -1) {\n ++dots;\n } else {\n dots = -1;\n }\n }\n return res;\n}\n\nfunction _format(sep, pathObject) {\n var dir = pathObject.dir || pathObject.root;\n var base = pathObject.base || (pathObject.name || '') + (pathObject.ext || '');\n if (!dir) {\n return base;\n }\n if (dir === pathObject.root) {\n return dir + base;\n }\n return dir + sep + base;\n}\n\nvar posix = {\n // path.resolve([from ...], to)\n resolve: function resolve() {\n var resolvedPath = '';\n var resolvedAbsolute = false;\n var cwd;\n\n for (var i = arguments.length - 1; i >= -1 && !resolvedAbsolute; i--) {\n var path;\n if (i >= 0)\n path = arguments[i];\n else {\n if (cwd === undefined)\n cwd = process.cwd();\n path = cwd;\n }\n\n assertPath(path);\n\n // Skip empty entries\n if (path.length === 0) {\n continue;\n }\n\n resolvedPath = path + '/' + resolvedPath;\n resolvedAbsolute = path.charCodeAt(0) === 47 /*/*/;\n }\n\n // At this point the path should be resolved to a full absolute path, but\n // handle relative paths to be safe (might happen when process.cwd() fails)\n\n // Normalize the path\n resolvedPath = normalizeStringPosix(resolvedPath, !resolvedAbsolute);\n\n if (resolvedAbsolute) {\n if (resolvedPath.length > 0)\n return '/' + resolvedPath;\n else\n return '/';\n } else if (resolvedPath.length > 0) {\n return resolvedPath;\n } else {\n return '.';\n }\n },\n\n normalize: function normalize(path) {\n assertPath(path);\n\n if (path.length === 0) return '.';\n\n var isAbsolute = path.charCodeAt(0) === 47 /*/*/;\n var trailingSeparator = path.charCodeAt(path.length - 1) === 47 /*/*/;\n\n // Normalize the path\n path = normalizeStringPosix(path, !isAbsolute);\n\n if (path.length === 0 && !isAbsolute) path = '.';\n if (path.length > 0 && trailingSeparator) path += '/';\n\n if (isAbsolute) return '/' + path;\n return path;\n },\n\n isAbsolute: function isAbsolute(path) {\n assertPath(path);\n return path.length > 0 && path.charCodeAt(0) === 47 /*/*/;\n },\n\n join: function join() {\n if (arguments.length === 0)\n return '.';\n var joined;\n for (var i = 0; i < arguments.length; ++i) {\n var arg = arguments[i];\n assertPath(arg);\n if (arg.length > 0) {\n if (joined === undefined)\n joined = arg;\n else\n joined += '/' + arg;\n }\n }\n if (joined === undefined)\n return '.';\n return posix.normalize(joined);\n },\n\n relative: function relative(from, to) {\n assertPath(from);\n assertPath(to);\n\n if (from === to) return '';\n\n from = posix.resolve(from);\n to = posix.resolve(to);\n\n if (from === to) return '';\n\n // Trim any leading backslashes\n var fromStart = 1;\n for (; fromStart < from.length; ++fromStart) {\n if (from.charCodeAt(fromStart) !== 47 /*/*/)\n break;\n }\n var fromEnd = from.length;\n var fromLen = fromEnd - fromStart;\n\n // Trim any leading backslashes\n var toStart = 1;\n for (; toStart < to.length; ++toStart) {\n if (to.charCodeAt(toStart) !== 47 /*/*/)\n break;\n }\n var toEnd = to.length;\n var toLen = toEnd - toStart;\n\n // Compare paths to find the longest common path from root\n var length = fromLen < toLen ? fromLen : toLen;\n var lastCommonSep = -1;\n var i = 0;\n for (; i <= length; ++i) {\n if (i === length) {\n if (toLen > length) {\n if (to.charCodeAt(toStart + i) === 47 /*/*/) {\n // We get here if `from` is the exact base path for `to`.\n // For example: from='/foo/bar'; to='/foo/bar/baz'\n return to.slice(toStart + i + 1);\n } else if (i === 0) {\n // We get here if `from` is the root\n // For example: from='/'; to='/foo'\n return to.slice(toStart + i);\n }\n } else if (fromLen > length) {\n if (from.charCodeAt(fromStart + i) === 47 /*/*/) {\n // We get here if `to` is the exact base path for `from`.\n // For example: from='/foo/bar/baz'; to='/foo/bar'\n lastCommonSep = i;\n } else if (i === 0) {\n // We get here if `to` is the root.\n // For example: from='/foo'; to='/'\n lastCommonSep = 0;\n }\n }\n break;\n }\n var fromCode = from.charCodeAt(fromStart + i);\n var toCode = to.charCodeAt(toStart + i);\n if (fromCode !== toCode)\n break;\n else if (fromCode === 47 /*/*/)\n lastCommonSep = i;\n }\n\n var out = '';\n // Generate the relative path based on the path difference between `to`\n // and `from`\n for (i = fromStart + lastCommonSep + 1; i <= fromEnd; ++i) {\n if (i === fromEnd || from.charCodeAt(i) === 47 /*/*/) {\n if (out.length === 0)\n out += '..';\n else\n out += '/..';\n }\n }\n\n // Lastly, append the rest of the destination (`to`) path that comes after\n // the common path parts\n if (out.length > 0)\n return out + to.slice(toStart + lastCommonSep);\n else {\n toStart += lastCommonSep;\n if (to.charCodeAt(toStart) === 47 /*/*/)\n ++toStart;\n return to.slice(toStart);\n }\n },\n\n _makeLong: function _makeLong(path) {\n return path;\n },\n\n dirname: function dirname(path) {\n assertPath(path);\n if (path.length === 0) return '.';\n var code = path.charCodeAt(0);\n var hasRoot = code === 47 /*/*/;\n var end = -1;\n var matchedSlash = true;\n for (var i = path.length - 1; i >= 1; --i) {\n code = path.charCodeAt(i);\n if (code === 47 /*/*/) {\n if (!matchedSlash) {\n end = i;\n break;\n }\n } else {\n // We saw the first non-path separator\n matchedSlash = false;\n }\n }\n\n if (end === -1) return hasRoot ? '/' : '.';\n if (hasRoot && end === 1) return '//';\n return path.slice(0, end);\n },\n\n basename: function basename(path, ext) {\n if (ext !== undefined && typeof ext !== 'string') throw new TypeError('\"ext\" argument must be a string');\n assertPath(path);\n\n var start = 0;\n var end = -1;\n var matchedSlash = true;\n var i;\n\n if (ext !== undefined && ext.length > 0 && ext.length <= path.length) {\n if (ext.length === path.length && ext === path) return '';\n var extIdx = ext.length - 1;\n var firstNonSlashEnd = -1;\n for (i = path.length - 1; i >= 0; --i) {\n var code = path.charCodeAt(i);\n if (code === 47 /*/*/) {\n // If we reached a path separator that was not part of a set of path\n // separators at the end of the string, stop now\n if (!matchedSlash) {\n start = i + 1;\n break;\n }\n } else {\n if (firstNonSlashEnd === -1) {\n // We saw the first non-path separator, remember this index in case\n // we need it if the extension ends up not matching\n matchedSlash = false;\n firstNonSlashEnd = i + 1;\n }\n if (extIdx >= 0) {\n // Try to match the explicit extension\n if (code === ext.charCodeAt(extIdx)) {\n if (--extIdx === -1) {\n // We matched the extension, so mark this as the end of our path\n // component\n end = i;\n }\n } else {\n // Extension does not match, so our result is the entire path\n // component\n extIdx = -1;\n end = firstNonSlashEnd;\n }\n }\n }\n }\n\n if (start === end) end = firstNonSlashEnd;else if (end === -1) end = path.length;\n return path.slice(start, end);\n } else {\n for (i = path.length - 1; i >= 0; --i) {\n if (path.charCodeAt(i) === 47 /*/*/) {\n // If we reached a path separator that was not part of a set of path\n // separators at the end of the string, stop now\n if (!matchedSlash) {\n start = i + 1;\n break;\n }\n } else if (end === -1) {\n // We saw the first non-path separator, mark this as the end of our\n // path component\n matchedSlash = false;\n end = i + 1;\n }\n }\n\n if (end === -1) return '';\n return path.slice(start, end);\n }\n },\n\n extname: function extname(path) {\n assertPath(path);\n var startDot = -1;\n var startPart = 0;\n var end = -1;\n var matchedSlash = true;\n // Track the state of characters (if any) we see before our first dot and\n // after any path separator we find\n var preDotState = 0;\n for (var i = path.length - 1; i >= 0; --i) {\n var code = path.charCodeAt(i);\n if (code === 47 /*/*/) {\n // If we reached a path separator that was not part of a set of path\n // separators at the end of the string, stop now\n if (!matchedSlash) {\n startPart = i + 1;\n break;\n }\n continue;\n }\n if (end === -1) {\n // We saw the first non-path separator, mark this as the end of our\n // extension\n matchedSlash = false;\n end = i + 1;\n }\n if (code === 46 /*.*/) {\n // If this is our first dot, mark it as the start of our extension\n if (startDot === -1)\n startDot = i;\n else if (preDotState !== 1)\n preDotState = 1;\n } else if (startDot !== -1) {\n // We saw a non-dot and non-path separator before our dot, so we should\n // have a good chance at having a non-empty extension\n preDotState = -1;\n }\n }\n\n if (startDot === -1 || end === -1 ||\n // We saw a non-dot character immediately before the dot\n preDotState === 0 ||\n // The (right-most) trimmed path component is exactly '..'\n preDotState === 1 && startDot === end - 1 && startDot === startPart + 1) {\n return '';\n }\n return path.slice(startDot, end);\n },\n\n format: function format(pathObject) {\n if (pathObject === null || typeof pathObject !== 'object') {\n throw new TypeError('The \"pathObject\" argument must be of type Object. Received type ' + typeof pathObject);\n }\n return _format('/', pathObject);\n },\n\n parse: function parse(path) {\n assertPath(path);\n\n var ret = { root: '', dir: '', base: '', ext: '', name: '' };\n if (path.length === 0) return ret;\n var code = path.charCodeAt(0);\n var isAbsolute = code === 47 /*/*/;\n var start;\n if (isAbsolute) {\n ret.root = '/';\n start = 1;\n } else {\n start = 0;\n }\n var startDot = -1;\n var startPart = 0;\n var end = -1;\n var matchedSlash = true;\n var i = path.length - 1;\n\n // Track the state of characters (if any) we see before our first dot and\n // after any path separator we find\n var preDotState = 0;\n\n // Get non-dir info\n for (; i >= start; --i) {\n code = path.charCodeAt(i);\n if (code === 47 /*/*/) {\n // If we reached a path separator that was not part of a set of path\n // separators at the end of the string, stop now\n if (!matchedSlash) {\n startPart = i + 1;\n break;\n }\n continue;\n }\n if (end === -1) {\n // We saw the first non-path separator, mark this as the end of our\n // extension\n matchedSlash = false;\n end = i + 1;\n }\n if (code === 46 /*.*/) {\n // If this is our first dot, mark it as the start of our extension\n if (startDot === -1) startDot = i;else if (preDotState !== 1) preDotState = 1;\n } else if (startDot !== -1) {\n // We saw a non-dot and non-path separator before our dot, so we should\n // have a good chance at having a non-empty extension\n preDotState = -1;\n }\n }\n\n if (startDot === -1 || end === -1 ||\n // We saw a non-dot character immediately before the dot\n preDotState === 0 ||\n // The (right-most) trimmed path component is exactly '..'\n preDotState === 1 && startDot === end - 1 && startDot === startPart + 1) {\n if (end !== -1) {\n if (startPart === 0 && isAbsolute) ret.base = ret.name = path.slice(1, end);else ret.base = ret.name = path.slice(startPart, end);\n }\n } else {\n if (startPart === 0 && isAbsolute) {\n ret.name = path.slice(1, startDot);\n ret.base = path.slice(1, end);\n } else {\n ret.name = path.slice(startPart, startDot);\n ret.base = path.slice(startPart, end);\n }\n ret.ext = path.slice(startDot, end);\n }\n\n if (startPart > 0) ret.dir = path.slice(0, startPart - 1);else if (isAbsolute) ret.dir = '/';\n\n return ret;\n },\n\n sep: '/',\n delimiter: ':',\n win32: null,\n posix: null\n};\n\nposix.posix = posix;\n\nmodule.exports = posix;\n","// shim for using process in browser\nvar process = module.exports = {};\n\n// cached from whatever global is present so that test runners that stub it\n// don't break things. But we need to wrap it in a try catch in case it is\n// wrapped in strict mode code which doesn't define any globals. It's inside a\n// function because try/catches deoptimize in certain engines.\n\nvar cachedSetTimeout;\nvar cachedClearTimeout;\n\nfunction defaultSetTimout() {\n throw new Error('setTimeout has not been defined');\n}\nfunction defaultClearTimeout () {\n throw new Error('clearTimeout has not been defined');\n}\n(function () {\n try {\n if (typeof setTimeout === 'function') {\n cachedSetTimeout = setTimeout;\n } else {\n cachedSetTimeout = defaultSetTimout;\n }\n } catch (e) {\n cachedSetTimeout = defaultSetTimout;\n }\n try {\n if (typeof clearTimeout === 'function') {\n cachedClearTimeout = clearTimeout;\n } else {\n cachedClearTimeout = defaultClearTimeout;\n }\n } catch (e) {\n cachedClearTimeout = defaultClearTimeout;\n }\n} ())\nfunction runTimeout(fun) {\n if (cachedSetTimeout === setTimeout) {\n //normal enviroments in sane situations\n return setTimeout(fun, 0);\n }\n // if setTimeout wasn't available but was latter defined\n if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) {\n cachedSetTimeout = setTimeout;\n return setTimeout(fun, 0);\n }\n try {\n // when when somebody has screwed with setTimeout but no I.E. maddness\n return cachedSetTimeout(fun, 0);\n } catch(e){\n try {\n // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally\n return cachedSetTimeout.call(null, fun, 0);\n } catch(e){\n // 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\n return cachedSetTimeout.call(this, fun, 0);\n }\n }\n\n\n}\nfunction runClearTimeout(marker) {\n if (cachedClearTimeout === clearTimeout) {\n //normal enviroments in sane situations\n return clearTimeout(marker);\n }\n // if clearTimeout wasn't available but was latter defined\n if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) {\n cachedClearTimeout = clearTimeout;\n return clearTimeout(marker);\n }\n try {\n // when when somebody has screwed with setTimeout but no I.E. maddness\n return cachedClearTimeout(marker);\n } catch (e){\n try {\n // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally\n return cachedClearTimeout.call(null, marker);\n } catch (e){\n // 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.\n // Some versions of I.E. have different rules for clearTimeout vs setTimeout\n return cachedClearTimeout.call(this, marker);\n }\n }\n\n\n\n}\nvar queue = [];\nvar draining = false;\nvar currentQueue;\nvar queueIndex = -1;\n\nfunction cleanUpNextTick() {\n if (!draining || !currentQueue) {\n return;\n }\n draining = false;\n if (currentQueue.length) {\n queue = currentQueue.concat(queue);\n } else {\n queueIndex = -1;\n }\n if (queue.length) {\n drainQueue();\n }\n}\n\nfunction drainQueue() {\n if (draining) {\n return;\n }\n var timeout = runTimeout(cleanUpNextTick);\n draining = true;\n\n var len = queue.length;\n while(len) {\n currentQueue = queue;\n queue = [];\n while (++queueIndex < len) {\n if (currentQueue) {\n currentQueue[queueIndex].run();\n }\n }\n queueIndex = -1;\n len = queue.length;\n }\n currentQueue = null;\n draining = false;\n runClearTimeout(timeout);\n}\n\nprocess.nextTick = function (fun) {\n var args = new Array(arguments.length - 1);\n if (arguments.length > 1) {\n for (var i = 1; i < arguments.length; i++) {\n args[i - 1] = arguments[i];\n }\n }\n queue.push(new Item(fun, args));\n if (queue.length === 1 && !draining) {\n runTimeout(drainQueue);\n }\n};\n\n// v8 likes predictible objects\nfunction Item(fun, array) {\n this.fun = fun;\n this.array = array;\n}\nItem.prototype.run = function () {\n this.fun.apply(null, this.array);\n};\nprocess.title = 'browser';\nprocess.browser = true;\nprocess.env = {};\nprocess.argv = [];\nprocess.version = ''; // empty string to avoid regexp issues\nprocess.versions = {};\n\nfunction noop() {}\n\nprocess.on = noop;\nprocess.addListener = noop;\nprocess.once = noop;\nprocess.off = noop;\nprocess.removeListener = noop;\nprocess.removeAllListeners = noop;\nprocess.emit = noop;\nprocess.prependListener = noop;\nprocess.prependOnceListener = noop;\n\nprocess.listeners = function (name) { return [] }\n\nprocess.binding = function (name) {\n throw new Error('process.binding is not supported');\n};\n\nprocess.cwd = function () { return '/' };\nprocess.chdir = function (dir) {\n throw new Error('process.chdir is not supported');\n};\nprocess.umask = function() { return 0; };\n","// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n\n'use strict';\n\n// If obj.hasOwnProperty has been overridden, then calling\n// obj.hasOwnProperty(prop) will break.\n// See: https://github.com/joyent/node/issues/1707\nfunction hasOwnProperty(obj, prop) {\n return Object.prototype.hasOwnProperty.call(obj, prop);\n}\n\nmodule.exports = function(qs, sep, eq, options) {\n sep = sep || '&';\n eq = eq || '=';\n var obj = {};\n\n if (typeof qs !== 'string' || qs.length === 0) {\n return obj;\n }\n\n var regexp = /\\+/g;\n qs = qs.split(sep);\n\n var maxKeys = 1000;\n if (options && typeof options.maxKeys === 'number') {\n maxKeys = options.maxKeys;\n }\n\n var len = qs.length;\n // maxKeys <= 0 means that we should not limit keys count\n if (maxKeys > 0 && len > maxKeys) {\n len = maxKeys;\n }\n\n for (var i = 0; i < len; ++i) {\n var x = qs[i].replace(regexp, '%20'),\n idx = x.indexOf(eq),\n kstr, vstr, k, v;\n\n if (idx >= 0) {\n kstr = x.substr(0, idx);\n vstr = x.substr(idx + 1);\n } else {\n kstr = x;\n vstr = '';\n }\n\n k = decodeURIComponent(kstr);\n v = decodeURIComponent(vstr);\n\n if (!hasOwnProperty(obj, k)) {\n obj[k] = v;\n } else if (Array.isArray(obj[k])) {\n obj[k].push(v);\n } else {\n obj[k] = [obj[k], v];\n }\n }\n\n return obj;\n};\n","// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n\n'use strict';\n\nvar stringifyPrimitive = function(v) {\n switch (typeof v) {\n case 'string':\n return v;\n\n case 'boolean':\n return v ? 'true' : 'false';\n\n case 'number':\n return isFinite(v) ? v : '';\n\n default:\n return '';\n }\n};\n\nmodule.exports = function(obj, sep, eq, name) {\n sep = sep || '&';\n eq = eq || '=';\n if (obj === null) {\n obj = undefined;\n }\n\n if (typeof obj === 'object') {\n return Object.keys(obj).map(function(k) {\n var ks = encodeURIComponent(stringifyPrimitive(k)) + eq;\n if (Array.isArray(obj[k])) {\n return obj[k].map(function(v) {\n return ks + encodeURIComponent(stringifyPrimitive(v));\n }).join(sep);\n } else {\n return ks + encodeURIComponent(stringifyPrimitive(obj[k]));\n }\n }).join(sep);\n\n }\n\n if (!name) return '';\n return encodeURIComponent(stringifyPrimitive(name)) + eq +\n encodeURIComponent(stringifyPrimitive(obj));\n};\n","'use strict';\n\nexports.decode = exports.parse = require('./decode');\nexports.encode = exports.stringify = require('./encode');\n","'use strict';\n\nfunction _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }\n\nvar codes = {};\n\nfunction createErrorType(code, message, Base) {\n if (!Base) {\n Base = Error;\n }\n\n function getMessage(arg1, arg2, arg3) {\n if (typeof message === 'string') {\n return message;\n } else {\n return message(arg1, arg2, arg3);\n }\n }\n\n var NodeError =\n /*#__PURE__*/\n function (_Base) {\n _inheritsLoose(NodeError, _Base);\n\n function NodeError(arg1, arg2, arg3) {\n return _Base.call(this, getMessage(arg1, arg2, arg3)) || this;\n }\n\n return NodeError;\n }(Base);\n\n NodeError.prototype.name = Base.name;\n NodeError.prototype.code = code;\n codes[code] = NodeError;\n} // https://github.com/nodejs/node/blob/v10.8.0/lib/internal/errors.js\n\n\nfunction oneOf(expected, thing) {\n if (Array.isArray(expected)) {\n var len = expected.length;\n expected = expected.map(function (i) {\n return String(i);\n });\n\n if (len > 2) {\n return \"one of \".concat(thing, \" \").concat(expected.slice(0, len - 1).join(', '), \", or \") + expected[len - 1];\n } else if (len === 2) {\n return \"one of \".concat(thing, \" \").concat(expected[0], \" or \").concat(expected[1]);\n } else {\n return \"of \".concat(thing, \" \").concat(expected[0]);\n }\n } else {\n return \"of \".concat(thing, \" \").concat(String(expected));\n }\n} // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/startsWith\n\n\nfunction startsWith(str, search, pos) {\n return str.substr(!pos || pos < 0 ? 0 : +pos, search.length) === search;\n} // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/endsWith\n\n\nfunction endsWith(str, search, this_len) {\n if (this_len === undefined || this_len > str.length) {\n this_len = str.length;\n }\n\n return str.substring(this_len - search.length, this_len) === search;\n} // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/includes\n\n\nfunction includes(str, search, start) {\n if (typeof start !== 'number') {\n start = 0;\n }\n\n if (start + search.length > str.length) {\n return false;\n } else {\n return str.indexOf(search, start) !== -1;\n }\n}\n\ncreateErrorType('ERR_INVALID_OPT_VALUE', function (name, value) {\n return 'The value \"' + value + '\" is invalid for option \"' + name + '\"';\n}, TypeError);\ncreateErrorType('ERR_INVALID_ARG_TYPE', function (name, expected, actual) {\n // determiner: 'must be' or 'must not be'\n var determiner;\n\n if (typeof expected === 'string' && startsWith(expected, 'not ')) {\n determiner = 'must not be';\n expected = expected.replace(/^not /, '');\n } else {\n determiner = 'must be';\n }\n\n var msg;\n\n if (endsWith(name, ' argument')) {\n // For cases like 'first argument'\n msg = \"The \".concat(name, \" \").concat(determiner, \" \").concat(oneOf(expected, 'type'));\n } else {\n var type = includes(name, '.') ? 'property' : 'argument';\n msg = \"The \\\"\".concat(name, \"\\\" \").concat(type, \" \").concat(determiner, \" \").concat(oneOf(expected, 'type'));\n }\n\n msg += \". Received type \".concat(typeof actual);\n return msg;\n}, TypeError);\ncreateErrorType('ERR_STREAM_PUSH_AFTER_EOF', 'stream.push() after EOF');\ncreateErrorType('ERR_METHOD_NOT_IMPLEMENTED', function (name) {\n return 'The ' + name + ' method is not implemented';\n});\ncreateErrorType('ERR_STREAM_PREMATURE_CLOSE', 'Premature close');\ncreateErrorType('ERR_STREAM_DESTROYED', function (name) {\n return 'Cannot call ' + name + ' after a stream was destroyed';\n});\ncreateErrorType('ERR_MULTIPLE_CALLBACK', 'Callback called multiple times');\ncreateErrorType('ERR_STREAM_CANNOT_PIPE', 'Cannot pipe, not readable');\ncreateErrorType('ERR_STREAM_WRITE_AFTER_END', 'write after end');\ncreateErrorType('ERR_STREAM_NULL_VALUES', 'May not write null values to stream', TypeError);\ncreateErrorType('ERR_UNKNOWN_ENCODING', function (arg) {\n return 'Unknown encoding: ' + arg;\n}, TypeError);\ncreateErrorType('ERR_STREAM_UNSHIFT_AFTER_END_EVENT', 'stream.unshift() after end event');\nmodule.exports.codes = codes;\n","// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n\n// a duplex stream is just a stream that is both readable and writable.\n// Since JS doesn't have multiple prototypal inheritance, this class\n// prototypally inherits from Readable, and then parasitically from\n// Writable.\n\n'use strict';\n\n/**/\nvar objectKeys = Object.keys || function (obj) {\n var keys = [];\n for (var key in obj) keys.push(key);\n return keys;\n};\n/**/\n\nmodule.exports = Duplex;\nvar Readable = require('./_stream_readable');\nvar Writable = require('./_stream_writable');\nrequire('inherits')(Duplex, Readable);\n{\n // Allow the keys array to be GC'ed.\n var keys = objectKeys(Writable.prototype);\n for (var v = 0; v < keys.length; v++) {\n var method = keys[v];\n if (!Duplex.prototype[method]) Duplex.prototype[method] = Writable.prototype[method];\n }\n}\nfunction Duplex(options) {\n if (!(this instanceof Duplex)) return new Duplex(options);\n Readable.call(this, options);\n Writable.call(this, options);\n this.allowHalfOpen = true;\n if (options) {\n if (options.readable === false) this.readable = false;\n if (options.writable === false) this.writable = false;\n if (options.allowHalfOpen === false) {\n this.allowHalfOpen = false;\n this.once('end', onend);\n }\n }\n}\nObject.defineProperty(Duplex.prototype, 'writableHighWaterMark', {\n // making it explicit this property is not enumerable\n // because otherwise some prototype manipulation in\n // userland will fail\n enumerable: false,\n get: function get() {\n return this._writableState.highWaterMark;\n }\n});\nObject.defineProperty(Duplex.prototype, 'writableBuffer', {\n // making it explicit this property is not enumerable\n // because otherwise some prototype manipulation in\n // userland will fail\n enumerable: false,\n get: function get() {\n return this._writableState && this._writableState.getBuffer();\n }\n});\nObject.defineProperty(Duplex.prototype, 'writableLength', {\n // making it explicit this property is not enumerable\n // because otherwise some prototype manipulation in\n // userland will fail\n enumerable: false,\n get: function get() {\n return this._writableState.length;\n }\n});\n\n// the no-half-open enforcer\nfunction onend() {\n // If the writable side ended, then we're ok.\n if (this._writableState.ended) return;\n\n // no more data can be written.\n // But allow more writes to happen in this tick.\n process.nextTick(onEndNT, this);\n}\nfunction onEndNT(self) {\n self.end();\n}\nObject.defineProperty(Duplex.prototype, 'destroyed', {\n // making it explicit this property is not enumerable\n // because otherwise some prototype manipulation in\n // userland will fail\n enumerable: false,\n get: function get() {\n if (this._readableState === undefined || this._writableState === undefined) {\n return false;\n }\n return this._readableState.destroyed && this._writableState.destroyed;\n },\n set: function set(value) {\n // we ignore the value if the stream\n // has not been initialized yet\n if (this._readableState === undefined || this._writableState === undefined) {\n return;\n }\n\n // backward compatibility, the user is explicitly\n // managing destroyed\n this._readableState.destroyed = value;\n this._writableState.destroyed = value;\n }\n});","// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n\n// a passthrough stream.\n// basically just the most minimal sort of Transform stream.\n// Every written chunk gets output as-is.\n\n'use strict';\n\nmodule.exports = PassThrough;\nvar Transform = require('./_stream_transform');\nrequire('inherits')(PassThrough, Transform);\nfunction PassThrough(options) {\n if (!(this instanceof PassThrough)) return new PassThrough(options);\n Transform.call(this, options);\n}\nPassThrough.prototype._transform = function (chunk, encoding, cb) {\n cb(null, chunk);\n};","// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n\n'use strict';\n\nmodule.exports = Readable;\n\n/**/\nvar Duplex;\n/**/\n\nReadable.ReadableState = ReadableState;\n\n/**/\nvar EE = require('events').EventEmitter;\nvar EElistenerCount = function EElistenerCount(emitter, type) {\n return emitter.listeners(type).length;\n};\n/**/\n\n/**/\nvar Stream = require('./internal/streams/stream');\n/**/\n\nvar Buffer = require('buffer').Buffer;\nvar OurUint8Array = (typeof global !== 'undefined' ? global : typeof window !== 'undefined' ? window : typeof self !== 'undefined' ? self : {}).Uint8Array || function () {};\nfunction _uint8ArrayToBuffer(chunk) {\n return Buffer.from(chunk);\n}\nfunction _isUint8Array(obj) {\n return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;\n}\n\n/**/\nvar debugUtil = require('util');\nvar debug;\nif (debugUtil && debugUtil.debuglog) {\n debug = debugUtil.debuglog('stream');\n} else {\n debug = function debug() {};\n}\n/**/\n\nvar BufferList = require('./internal/streams/buffer_list');\nvar destroyImpl = require('./internal/streams/destroy');\nvar _require = require('./internal/streams/state'),\n getHighWaterMark = _require.getHighWaterMark;\nvar _require$codes = require('../errors').codes,\n ERR_INVALID_ARG_TYPE = _require$codes.ERR_INVALID_ARG_TYPE,\n ERR_STREAM_PUSH_AFTER_EOF = _require$codes.ERR_STREAM_PUSH_AFTER_EOF,\n ERR_METHOD_NOT_IMPLEMENTED = _require$codes.ERR_METHOD_NOT_IMPLEMENTED,\n ERR_STREAM_UNSHIFT_AFTER_END_EVENT = _require$codes.ERR_STREAM_UNSHIFT_AFTER_END_EVENT;\n\n// Lazy loaded to improve the startup performance.\nvar StringDecoder;\nvar createReadableStreamAsyncIterator;\nvar from;\nrequire('inherits')(Readable, Stream);\nvar errorOrDestroy = destroyImpl.errorOrDestroy;\nvar kProxyEvents = ['error', 'close', 'destroy', 'pause', 'resume'];\nfunction prependListener(emitter, event, fn) {\n // Sadly this is not cacheable as some libraries bundle their own\n // event emitter implementation with them.\n if (typeof emitter.prependListener === 'function') return emitter.prependListener(event, fn);\n\n // This is a hack to make sure that our error handler is attached before any\n // userland ones. NEVER DO THIS. This is here only because this code needs\n // to continue to work with older versions of Node.js that do not include\n // the prependListener() method. The goal is to eventually remove this hack.\n 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]];\n}\nfunction ReadableState(options, stream, isDuplex) {\n Duplex = Duplex || require('./_stream_duplex');\n options = options || {};\n\n // Duplex streams are both readable and writable, but share\n // the same options object.\n // However, some cases require setting options to different\n // values for the readable and the writable sides of the duplex stream.\n // These options can be provided separately as readableXXX and writableXXX.\n if (typeof isDuplex !== 'boolean') isDuplex = stream instanceof Duplex;\n\n // object stream flag. Used to make read(n) ignore n and to\n // make all the buffer merging and length checks go away\n this.objectMode = !!options.objectMode;\n if (isDuplex) this.objectMode = this.objectMode || !!options.readableObjectMode;\n\n // the point at which it stops calling _read() to fill the buffer\n // Note: 0 is a valid value, means \"don't call _read preemptively ever\"\n this.highWaterMark = getHighWaterMark(this, options, 'readableHighWaterMark', isDuplex);\n\n // A linked list is used to store data chunks instead of an array because the\n // linked list can remove elements from the beginning faster than\n // array.shift()\n this.buffer = new BufferList();\n this.length = 0;\n this.pipes = null;\n this.pipesCount = 0;\n this.flowing = null;\n this.ended = false;\n this.endEmitted = false;\n this.reading = false;\n\n // a flag to be able to tell if the event 'readable'/'data' is emitted\n // immediately, or on a later tick. We set this to true at first, because\n // any actions that shouldn't happen until \"later\" should generally also\n // not happen before the first read call.\n this.sync = true;\n\n // whenever we return null, then we set a flag to say\n // that we're awaiting a 'readable' event emission.\n this.needReadable = false;\n this.emittedReadable = false;\n this.readableListening = false;\n this.resumeScheduled = false;\n this.paused = true;\n\n // Should close be emitted on destroy. Defaults to true.\n this.emitClose = options.emitClose !== false;\n\n // Should .destroy() be called after 'end' (and potentially 'finish')\n this.autoDestroy = !!options.autoDestroy;\n\n // has it been destroyed\n this.destroyed = false;\n\n // Crypto is kind of old and crusty. Historically, its default string\n // encoding is 'binary' so we have to make this configurable.\n // Everything else in the universe uses 'utf8', though.\n this.defaultEncoding = options.defaultEncoding || 'utf8';\n\n // the number of writers that are awaiting a drain event in .pipe()s\n this.awaitDrain = 0;\n\n // if true, a maybeReadMore has been scheduled\n this.readingMore = false;\n this.decoder = null;\n this.encoding = null;\n if (options.encoding) {\n if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder;\n this.decoder = new StringDecoder(options.encoding);\n this.encoding = options.encoding;\n }\n}\nfunction Readable(options) {\n Duplex = Duplex || require('./_stream_duplex');\n if (!(this instanceof Readable)) return new Readable(options);\n\n // Checking for a Stream.Duplex instance is faster here instead of inside\n // the ReadableState constructor, at least with V8 6.5\n var isDuplex = this instanceof Duplex;\n this._readableState = new ReadableState(options, this, isDuplex);\n\n // legacy\n this.readable = true;\n if (options) {\n if (typeof options.read === 'function') this._read = options.read;\n if (typeof options.destroy === 'function') this._destroy = options.destroy;\n }\n Stream.call(this);\n}\nObject.defineProperty(Readable.prototype, 'destroyed', {\n // making it explicit this property is not enumerable\n // because otherwise some prototype manipulation in\n // userland will fail\n enumerable: false,\n get: function get() {\n if (this._readableState === undefined) {\n return false;\n }\n return this._readableState.destroyed;\n },\n set: function set(value) {\n // we ignore the value if the stream\n // has not been initialized yet\n if (!this._readableState) {\n return;\n }\n\n // backward compatibility, the user is explicitly\n // managing destroyed\n this._readableState.destroyed = value;\n }\n});\nReadable.prototype.destroy = destroyImpl.destroy;\nReadable.prototype._undestroy = destroyImpl.undestroy;\nReadable.prototype._destroy = function (err, cb) {\n cb(err);\n};\n\n// Manually shove something into the read() buffer.\n// This returns true if the highWaterMark has not been hit yet,\n// similar to how Writable.write() returns true if you should\n// write() some more.\nReadable.prototype.push = function (chunk, encoding) {\n var state = this._readableState;\n var skipChunkCheck;\n if (!state.objectMode) {\n if (typeof chunk === 'string') {\n encoding = encoding || state.defaultEncoding;\n if (encoding !== state.encoding) {\n chunk = Buffer.from(chunk, encoding);\n encoding = '';\n }\n skipChunkCheck = true;\n }\n } else {\n skipChunkCheck = true;\n }\n return readableAddChunk(this, chunk, encoding, false, skipChunkCheck);\n};\n\n// Unshift should *always* be something directly out of read()\nReadable.prototype.unshift = function (chunk) {\n return readableAddChunk(this, chunk, null, true, false);\n};\nfunction readableAddChunk(stream, chunk, encoding, addToFront, skipChunkCheck) {\n debug('readableAddChunk', chunk);\n var state = stream._readableState;\n if (chunk === null) {\n state.reading = false;\n onEofChunk(stream, state);\n } else {\n var er;\n if (!skipChunkCheck) er = chunkInvalid(state, chunk);\n if (er) {\n errorOrDestroy(stream, er);\n } else if (state.objectMode || chunk && chunk.length > 0) {\n if (typeof chunk !== 'string' && !state.objectMode && Object.getPrototypeOf(chunk) !== Buffer.prototype) {\n chunk = _uint8ArrayToBuffer(chunk);\n }\n if (addToFront) {\n if (state.endEmitted) errorOrDestroy(stream, new ERR_STREAM_UNSHIFT_AFTER_END_EVENT());else addChunk(stream, state, chunk, true);\n } else if (state.ended) {\n errorOrDestroy(stream, new ERR_STREAM_PUSH_AFTER_EOF());\n } else if (state.destroyed) {\n return false;\n } else {\n state.reading = false;\n if (state.decoder && !encoding) {\n chunk = state.decoder.write(chunk);\n if (state.objectMode || chunk.length !== 0) addChunk(stream, state, chunk, false);else maybeReadMore(stream, state);\n } else {\n addChunk(stream, state, chunk, false);\n }\n }\n } else if (!addToFront) {\n state.reading = false;\n maybeReadMore(stream, state);\n }\n }\n\n // We can push more data if we are below the highWaterMark.\n // Also, if we have no data yet, we can stand some more bytes.\n // This is to work around cases where hwm=0, such as the repl.\n return !state.ended && (state.length < state.highWaterMark || state.length === 0);\n}\nfunction addChunk(stream, state, chunk, addToFront) {\n if (state.flowing && state.length === 0 && !state.sync) {\n state.awaitDrain = 0;\n stream.emit('data', chunk);\n } else {\n // update the buffer info.\n state.length += state.objectMode ? 1 : chunk.length;\n if (addToFront) state.buffer.unshift(chunk);else state.buffer.push(chunk);\n if (state.needReadable) emitReadable(stream);\n }\n maybeReadMore(stream, state);\n}\nfunction chunkInvalid(state, chunk) {\n var er;\n if (!_isUint8Array(chunk) && typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) {\n er = new ERR_INVALID_ARG_TYPE('chunk', ['string', 'Buffer', 'Uint8Array'], chunk);\n }\n return er;\n}\nReadable.prototype.isPaused = function () {\n return this._readableState.flowing === false;\n};\n\n// backwards compatibility.\nReadable.prototype.setEncoding = function (enc) {\n if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder;\n var decoder = new StringDecoder(enc);\n this._readableState.decoder = decoder;\n // If setEncoding(null), decoder.encoding equals utf8\n this._readableState.encoding = this._readableState.decoder.encoding;\n\n // Iterate over current buffer to convert already stored Buffers:\n var p = this._readableState.buffer.head;\n var content = '';\n while (p !== null) {\n content += decoder.write(p.data);\n p = p.next;\n }\n this._readableState.buffer.clear();\n if (content !== '') this._readableState.buffer.push(content);\n this._readableState.length = content.length;\n return this;\n};\n\n// Don't raise the hwm > 1GB\nvar MAX_HWM = 0x40000000;\nfunction computeNewHighWaterMark(n) {\n if (n >= MAX_HWM) {\n // TODO(ronag): Throw ERR_VALUE_OUT_OF_RANGE.\n n = MAX_HWM;\n } else {\n // Get the next highest power of 2 to prevent increasing hwm excessively in\n // tiny amounts\n n--;\n n |= n >>> 1;\n n |= n >>> 2;\n n |= n >>> 4;\n n |= n >>> 8;\n n |= n >>> 16;\n n++;\n }\n return n;\n}\n\n// This function is designed to be inlinable, so please take care when making\n// changes to the function body.\nfunction howMuchToRead(n, state) {\n if (n <= 0 || state.length === 0 && state.ended) return 0;\n if (state.objectMode) return 1;\n if (n !== n) {\n // Only flow one buffer at a time\n if (state.flowing && state.length) return state.buffer.head.data.length;else return state.length;\n }\n // If we're asking for more than the current hwm, then raise the hwm.\n if (n > state.highWaterMark) state.highWaterMark = computeNewHighWaterMark(n);\n if (n <= state.length) return n;\n // Don't have enough\n if (!state.ended) {\n state.needReadable = true;\n return 0;\n }\n return state.length;\n}\n\n// you can override either this method, or the async _read(n) below.\nReadable.prototype.read = function (n) {\n debug('read', n);\n n = parseInt(n, 10);\n var state = this._readableState;\n var nOrig = n;\n if (n !== 0) state.emittedReadable = false;\n\n // if we're doing read(0) to trigger a readable event, but we\n // already have a bunch of data in the buffer, then just trigger\n // the 'readable' event and move on.\n if (n === 0 && state.needReadable && ((state.highWaterMark !== 0 ? state.length >= state.highWaterMark : state.length > 0) || state.ended)) {\n debug('read: emitReadable', state.length, state.ended);\n if (state.length === 0 && state.ended) endReadable(this);else emitReadable(this);\n return null;\n }\n n = howMuchToRead(n, state);\n\n // if we've ended, and we're now clear, then finish it up.\n if (n === 0 && state.ended) {\n if (state.length === 0) endReadable(this);\n return null;\n }\n\n // All the actual chunk generation logic needs to be\n // *below* the call to _read. The reason is that in certain\n // synthetic stream cases, such as passthrough streams, _read\n // may be a completely synchronous operation which may change\n // the state of the read buffer, providing enough data when\n // before there was *not* enough.\n //\n // So, the steps are:\n // 1. Figure out what the state of things will be after we do\n // a read from the buffer.\n //\n // 2. If that resulting state will trigger a _read, then call _read.\n // Note that this may be asynchronous, or synchronous. Yes, it is\n // deeply ugly to write APIs this way, but that still doesn't mean\n // that the Readable class should behave improperly, as streams are\n // designed to be sync/async agnostic.\n // Take note if the _read call is sync or async (ie, if the read call\n // has returned yet), so that we know whether or not it's safe to emit\n // 'readable' etc.\n //\n // 3. Actually pull the requested chunks out of the buffer and return.\n\n // if we need a readable event, then we need to do some reading.\n var doRead = state.needReadable;\n debug('need readable', doRead);\n\n // if we currently have less than the highWaterMark, then also read some\n if (state.length === 0 || state.length - n < state.highWaterMark) {\n doRead = true;\n debug('length less than watermark', doRead);\n }\n\n // however, if we've ended, then there's no point, and if we're already\n // reading, then it's unnecessary.\n if (state.ended || state.reading) {\n doRead = false;\n debug('reading or ended', doRead);\n } else if (doRead) {\n debug('do read');\n state.reading = true;\n state.sync = true;\n // if the length is currently zero, then we *need* a readable event.\n if (state.length === 0) state.needReadable = true;\n // call internal read method\n this._read(state.highWaterMark);\n state.sync = false;\n // If _read pushed data synchronously, then `reading` will be false,\n // and we need to re-evaluate how much data we can return to the user.\n if (!state.reading) n = howMuchToRead(nOrig, state);\n }\n var ret;\n if (n > 0) ret = fromList(n, state);else ret = null;\n if (ret === null) {\n state.needReadable = state.length <= state.highWaterMark;\n n = 0;\n } else {\n state.length -= n;\n state.awaitDrain = 0;\n }\n if (state.length === 0) {\n // If we have nothing in the buffer, then we want to know\n // as soon as we *do* get something into the buffer.\n if (!state.ended) state.needReadable = true;\n\n // If we tried to read() past the EOF, then emit end on the next tick.\n if (nOrig !== n && state.ended) endReadable(this);\n }\n if (ret !== null) this.emit('data', ret);\n return ret;\n};\nfunction onEofChunk(stream, state) {\n debug('onEofChunk');\n if (state.ended) return;\n if (state.decoder) {\n var chunk = state.decoder.end();\n if (chunk && chunk.length) {\n state.buffer.push(chunk);\n state.length += state.objectMode ? 1 : chunk.length;\n }\n }\n state.ended = true;\n if (state.sync) {\n // if we are sync, wait until next tick to emit the data.\n // Otherwise we risk emitting data in the flow()\n // the readable code triggers during a read() call\n emitReadable(stream);\n } else {\n // emit 'readable' now to make sure it gets picked up.\n state.needReadable = false;\n if (!state.emittedReadable) {\n state.emittedReadable = true;\n emitReadable_(stream);\n }\n }\n}\n\n// Don't emit readable right away in sync mode, because this can trigger\n// another read() call => stack overflow. This way, it might trigger\n// a nextTick recursion warning, but that's not so bad.\nfunction emitReadable(stream) {\n var state = stream._readableState;\n debug('emitReadable', state.needReadable, state.emittedReadable);\n state.needReadable = false;\n if (!state.emittedReadable) {\n debug('emitReadable', state.flowing);\n state.emittedReadable = true;\n process.nextTick(emitReadable_, stream);\n }\n}\nfunction emitReadable_(stream) {\n var state = stream._readableState;\n debug('emitReadable_', state.destroyed, state.length, state.ended);\n if (!state.destroyed && (state.length || state.ended)) {\n stream.emit('readable');\n state.emittedReadable = false;\n }\n\n // The stream needs another readable event if\n // 1. It is not flowing, as the flow mechanism will take\n // care of it.\n // 2. It is not ended.\n // 3. It is below the highWaterMark, so we can schedule\n // another readable later.\n state.needReadable = !state.flowing && !state.ended && state.length <= state.highWaterMark;\n flow(stream);\n}\n\n// at this point, the user has presumably seen the 'readable' event,\n// and called read() to consume some data. that may have triggered\n// in turn another _read(n) call, in which case reading = true if\n// it's in progress.\n// However, if we're not ended, or reading, and the length < hwm,\n// then go ahead and try to read some more preemptively.\nfunction maybeReadMore(stream, state) {\n if (!state.readingMore) {\n state.readingMore = true;\n process.nextTick(maybeReadMore_, stream, state);\n }\n}\nfunction maybeReadMore_(stream, state) {\n // Attempt to read more data if we should.\n //\n // The conditions for reading more data are (one of):\n // - Not enough data buffered (state.length < state.highWaterMark). The loop\n // is responsible for filling the buffer with enough data if such data\n // is available. If highWaterMark is 0 and we are not in the flowing mode\n // we should _not_ attempt to buffer any extra data. We'll get more data\n // when the stream consumer calls read() instead.\n // - No data in the buffer, and the stream is in flowing mode. In this mode\n // the loop below is responsible for ensuring read() is called. Failing to\n // call read here would abort the flow and there's no other mechanism for\n // continuing the flow if the stream consumer has just subscribed to the\n // 'data' event.\n //\n // In addition to the above conditions to keep reading data, the following\n // conditions prevent the data from being read:\n // - The stream has ended (state.ended).\n // - There is already a pending 'read' operation (state.reading). This is a\n // case where the the stream has called the implementation defined _read()\n // method, but they are processing the call asynchronously and have _not_\n // called push() with new data. In this case we skip performing more\n // read()s. The execution ends in this method again after the _read() ends\n // up calling push() with more data.\n while (!state.reading && !state.ended && (state.length < state.highWaterMark || state.flowing && state.length === 0)) {\n var len = state.length;\n debug('maybeReadMore read 0');\n stream.read(0);\n if (len === state.length)\n // didn't get any data, stop spinning.\n break;\n }\n state.readingMore = false;\n}\n\n// abstract method. to be overridden in specific implementation classes.\n// call cb(er, data) where data is <= n in length.\n// for virtual (non-string, non-buffer) streams, \"length\" is somewhat\n// arbitrary, and perhaps not very meaningful.\nReadable.prototype._read = function (n) {\n errorOrDestroy(this, new ERR_METHOD_NOT_IMPLEMENTED('_read()'));\n};\nReadable.prototype.pipe = function (dest, pipeOpts) {\n var src = this;\n var state = this._readableState;\n switch (state.pipesCount) {\n case 0:\n state.pipes = dest;\n break;\n case 1:\n state.pipes = [state.pipes, dest];\n break;\n default:\n state.pipes.push(dest);\n break;\n }\n state.pipesCount += 1;\n debug('pipe count=%d opts=%j', state.pipesCount, pipeOpts);\n var doEnd = (!pipeOpts || pipeOpts.end !== false) && dest !== process.stdout && dest !== process.stderr;\n var endFn = doEnd ? onend : unpipe;\n if (state.endEmitted) process.nextTick(endFn);else src.once('end', endFn);\n dest.on('unpipe', onunpipe);\n function onunpipe(readable, unpipeInfo) {\n debug('onunpipe');\n if (readable === src) {\n if (unpipeInfo && unpipeInfo.hasUnpiped === false) {\n unpipeInfo.hasUnpiped = true;\n cleanup();\n }\n }\n }\n function onend() {\n debug('onend');\n dest.end();\n }\n\n // when the dest drains, it reduces the awaitDrain counter\n // on the source. This would be more elegant with a .once()\n // handler in flow(), but adding and removing repeatedly is\n // too slow.\n var ondrain = pipeOnDrain(src);\n dest.on('drain', ondrain);\n var cleanedUp = false;\n function cleanup() {\n debug('cleanup');\n // cleanup event handlers once the pipe is broken\n dest.removeListener('close', onclose);\n dest.removeListener('finish', onfinish);\n dest.removeListener('drain', ondrain);\n dest.removeListener('error', onerror);\n dest.removeListener('unpipe', onunpipe);\n src.removeListener('end', onend);\n src.removeListener('end', unpipe);\n src.removeListener('data', ondata);\n cleanedUp = true;\n\n // if the reader is waiting for a drain event from this\n // specific writer, then it would cause it to never start\n // flowing again.\n // So, if this is awaiting a drain, then we just call it now.\n // If we don't know, then assume that we are waiting for one.\n if (state.awaitDrain && (!dest._writableState || dest._writableState.needDrain)) ondrain();\n }\n src.on('data', ondata);\n function ondata(chunk) {\n debug('ondata');\n var ret = dest.write(chunk);\n debug('dest.write', ret);\n if (ret === false) {\n // If the user unpiped during `dest.write()`, it is possible\n // to get stuck in a permanently paused state if that write\n // also returned false.\n // => Check whether `dest` is still a piping destination.\n if ((state.pipesCount === 1 && state.pipes === dest || state.pipesCount > 1 && indexOf(state.pipes, dest) !== -1) && !cleanedUp) {\n debug('false write response, pause', state.awaitDrain);\n state.awaitDrain++;\n }\n src.pause();\n }\n }\n\n // if the dest has an error, then stop piping into it.\n // however, don't suppress the throwing behavior for this.\n function onerror(er) {\n debug('onerror', er);\n unpipe();\n dest.removeListener('error', onerror);\n if (EElistenerCount(dest, 'error') === 0) errorOrDestroy(dest, er);\n }\n\n // Make sure our error handler is attached before userland ones.\n prependListener(dest, 'error', onerror);\n\n // Both close and finish should trigger unpipe, but only once.\n function onclose() {\n dest.removeListener('finish', onfinish);\n unpipe();\n }\n dest.once('close', onclose);\n function onfinish() {\n debug('onfinish');\n dest.removeListener('close', onclose);\n unpipe();\n }\n dest.once('finish', onfinish);\n function unpipe() {\n debug('unpipe');\n src.unpipe(dest);\n }\n\n // tell the dest that it's being piped to\n dest.emit('pipe', src);\n\n // start the flow if it hasn't been started already.\n if (!state.flowing) {\n debug('pipe resume');\n src.resume();\n }\n return dest;\n};\nfunction pipeOnDrain(src) {\n return function pipeOnDrainFunctionResult() {\n var state = src._readableState;\n debug('pipeOnDrain', state.awaitDrain);\n if (state.awaitDrain) state.awaitDrain--;\n if (state.awaitDrain === 0 && EElistenerCount(src, 'data')) {\n state.flowing = true;\n flow(src);\n }\n };\n}\nReadable.prototype.unpipe = function (dest) {\n var state = this._readableState;\n var unpipeInfo = {\n hasUnpiped: false\n };\n\n // if we're not piping anywhere, then do nothing.\n if (state.pipesCount === 0) return this;\n\n // just one destination. most common case.\n if (state.pipesCount === 1) {\n // passed in one, but it's not the right one.\n if (dest && dest !== state.pipes) return this;\n if (!dest) dest = state.pipes;\n\n // got a match.\n state.pipes = null;\n state.pipesCount = 0;\n state.flowing = false;\n if (dest) dest.emit('unpipe', this, unpipeInfo);\n return this;\n }\n\n // slow case. multiple pipe destinations.\n\n if (!dest) {\n // remove all.\n var dests = state.pipes;\n var len = state.pipesCount;\n state.pipes = null;\n state.pipesCount = 0;\n state.flowing = false;\n for (var i = 0; i < len; i++) dests[i].emit('unpipe', this, {\n hasUnpiped: false\n });\n return this;\n }\n\n // try to find the right one.\n var index = indexOf(state.pipes, dest);\n if (index === -1) return this;\n state.pipes.splice(index, 1);\n state.pipesCount -= 1;\n if (state.pipesCount === 1) state.pipes = state.pipes[0];\n dest.emit('unpipe', this, unpipeInfo);\n return this;\n};\n\n// set up data events if they are asked for\n// Ensure readable listeners eventually get something\nReadable.prototype.on = function (ev, fn) {\n var res = Stream.prototype.on.call(this, ev, fn);\n var state = this._readableState;\n if (ev === 'data') {\n // update readableListening so that resume() may be a no-op\n // a few lines down. This is needed to support once('readable').\n state.readableListening = this.listenerCount('readable') > 0;\n\n // Try start flowing on next tick if stream isn't explicitly paused\n if (state.flowing !== false) this.resume();\n } else if (ev === 'readable') {\n if (!state.endEmitted && !state.readableListening) {\n state.readableListening = state.needReadable = true;\n state.flowing = false;\n state.emittedReadable = false;\n debug('on readable', state.length, state.reading);\n if (state.length) {\n emitReadable(this);\n } else if (!state.reading) {\n process.nextTick(nReadingNextTick, this);\n }\n }\n }\n return res;\n};\nReadable.prototype.addListener = Readable.prototype.on;\nReadable.prototype.removeListener = function (ev, fn) {\n var res = Stream.prototype.removeListener.call(this, ev, fn);\n if (ev === 'readable') {\n // We need to check if there is someone still listening to\n // readable and reset the state. However this needs to happen\n // after readable has been emitted but before I/O (nextTick) to\n // support once('readable', fn) cycles. This means that calling\n // resume within the same tick will have no\n // effect.\n process.nextTick(updateReadableListening, this);\n }\n return res;\n};\nReadable.prototype.removeAllListeners = function (ev) {\n var res = Stream.prototype.removeAllListeners.apply(this, arguments);\n if (ev === 'readable' || ev === undefined) {\n // We need to check if there is someone still listening to\n // readable and reset the state. However this needs to happen\n // after readable has been emitted but before I/O (nextTick) to\n // support once('readable', fn) cycles. This means that calling\n // resume within the same tick will have no\n // effect.\n process.nextTick(updateReadableListening, this);\n }\n return res;\n};\nfunction updateReadableListening(self) {\n var state = self._readableState;\n state.readableListening = self.listenerCount('readable') > 0;\n if (state.resumeScheduled && !state.paused) {\n // flowing needs to be set to true now, otherwise\n // the upcoming resume will not flow.\n state.flowing = true;\n\n // crude way to check if we should resume\n } else if (self.listenerCount('data') > 0) {\n self.resume();\n }\n}\nfunction nReadingNextTick(self) {\n debug('readable nexttick read 0');\n self.read(0);\n}\n\n// pause() and resume() are remnants of the legacy readable stream API\n// If the user uses them, then switch into old mode.\nReadable.prototype.resume = function () {\n var state = this._readableState;\n if (!state.flowing) {\n debug('resume');\n // we flow only if there is no one listening\n // for readable, but we still have to call\n // resume()\n state.flowing = !state.readableListening;\n resume(this, state);\n }\n state.paused = false;\n return this;\n};\nfunction resume(stream, state) {\n if (!state.resumeScheduled) {\n state.resumeScheduled = true;\n process.nextTick(resume_, stream, state);\n }\n}\nfunction resume_(stream, state) {\n debug('resume', state.reading);\n if (!state.reading) {\n stream.read(0);\n }\n state.resumeScheduled = false;\n stream.emit('resume');\n flow(stream);\n if (state.flowing && !state.reading) stream.read(0);\n}\nReadable.prototype.pause = function () {\n debug('call pause flowing=%j', this._readableState.flowing);\n if (this._readableState.flowing !== false) {\n debug('pause');\n this._readableState.flowing = false;\n this.emit('pause');\n }\n this._readableState.paused = true;\n return this;\n};\nfunction flow(stream) {\n var state = stream._readableState;\n debug('flow', state.flowing);\n while (state.flowing && stream.read() !== null);\n}\n\n// wrap an old-style stream as the async data source.\n// This is *not* part of the readable stream interface.\n// It is an ugly unfortunate mess of history.\nReadable.prototype.wrap = function (stream) {\n var _this = this;\n var state = this._readableState;\n var paused = false;\n stream.on('end', function () {\n debug('wrapped end');\n if (state.decoder && !state.ended) {\n var chunk = state.decoder.end();\n if (chunk && chunk.length) _this.push(chunk);\n }\n _this.push(null);\n });\n stream.on('data', function (chunk) {\n debug('wrapped data');\n if (state.decoder) chunk = state.decoder.write(chunk);\n\n // don't skip over falsy values in objectMode\n if (state.objectMode && (chunk === null || chunk === undefined)) return;else if (!state.objectMode && (!chunk || !chunk.length)) return;\n var ret = _this.push(chunk);\n if (!ret) {\n paused = true;\n stream.pause();\n }\n });\n\n // proxy all the other methods.\n // important when wrapping filters and duplexes.\n for (var i in stream) {\n if (this[i] === undefined && typeof stream[i] === 'function') {\n this[i] = function methodWrap(method) {\n return function methodWrapReturnFunction() {\n return stream[method].apply(stream, arguments);\n };\n }(i);\n }\n }\n\n // proxy certain important events.\n for (var n = 0; n < kProxyEvents.length; n++) {\n stream.on(kProxyEvents[n], this.emit.bind(this, kProxyEvents[n]));\n }\n\n // when we try to consume some more bytes, simply unpause the\n // underlying stream.\n this._read = function (n) {\n debug('wrapped _read', n);\n if (paused) {\n paused = false;\n stream.resume();\n }\n };\n return this;\n};\nif (typeof Symbol === 'function') {\n Readable.prototype[Symbol.asyncIterator] = function () {\n if (createReadableStreamAsyncIterator === undefined) {\n createReadableStreamAsyncIterator = require('./internal/streams/async_iterator');\n }\n return createReadableStreamAsyncIterator(this);\n };\n}\nObject.defineProperty(Readable.prototype, 'readableHighWaterMark', {\n // making it explicit this property is not enumerable\n // because otherwise some prototype manipulation in\n // userland will fail\n enumerable: false,\n get: function get() {\n return this._readableState.highWaterMark;\n }\n});\nObject.defineProperty(Readable.prototype, 'readableBuffer', {\n // making it explicit this property is not enumerable\n // because otherwise some prototype manipulation in\n // userland will fail\n enumerable: false,\n get: function get() {\n return this._readableState && this._readableState.buffer;\n }\n});\nObject.defineProperty(Readable.prototype, 'readableFlowing', {\n // making it explicit this property is not enumerable\n // because otherwise some prototype manipulation in\n // userland will fail\n enumerable: false,\n get: function get() {\n return this._readableState.flowing;\n },\n set: function set(state) {\n if (this._readableState) {\n this._readableState.flowing = state;\n }\n }\n});\n\n// exposed for testing purposes only.\nReadable._fromList = fromList;\nObject.defineProperty(Readable.prototype, 'readableLength', {\n // making it explicit this property is not enumerable\n // because otherwise some prototype manipulation in\n // userland will fail\n enumerable: false,\n get: function get() {\n return this._readableState.length;\n }\n});\n\n// Pluck off n bytes from an array of buffers.\n// Length is the combined lengths of all the buffers in the list.\n// This function is designed to be inlinable, so please take care when making\n// changes to the function body.\nfunction fromList(n, state) {\n // nothing buffered\n if (state.length === 0) return null;\n var ret;\n if (state.objectMode) ret = state.buffer.shift();else if (!n || n >= state.length) {\n // read it all, truncate the list\n if (state.decoder) ret = state.buffer.join('');else if (state.buffer.length === 1) ret = state.buffer.first();else ret = state.buffer.concat(state.length);\n state.buffer.clear();\n } else {\n // read part of list\n ret = state.buffer.consume(n, state.decoder);\n }\n return ret;\n}\nfunction endReadable(stream) {\n var state = stream._readableState;\n debug('endReadable', state.endEmitted);\n if (!state.endEmitted) {\n state.ended = true;\n process.nextTick(endReadableNT, state, stream);\n }\n}\nfunction endReadableNT(state, stream) {\n debug('endReadableNT', state.endEmitted, state.length);\n\n // Check that we didn't get one last unshift.\n if (!state.endEmitted && state.length === 0) {\n state.endEmitted = true;\n stream.readable = false;\n stream.emit('end');\n if (state.autoDestroy) {\n // In case of duplex streams we need a way to detect\n // if the writable side is ready for autoDestroy as well\n var wState = stream._writableState;\n if (!wState || wState.autoDestroy && wState.finished) {\n stream.destroy();\n }\n }\n }\n}\nif (typeof Symbol === 'function') {\n Readable.from = function (iterable, opts) {\n if (from === undefined) {\n from = require('./internal/streams/from');\n }\n return from(Readable, iterable, opts);\n };\n}\nfunction indexOf(xs, x) {\n for (var i = 0, l = xs.length; i < l; i++) {\n if (xs[i] === x) return i;\n }\n return -1;\n}","// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n\n// a transform stream is a readable/writable stream where you do\n// something with the data. Sometimes it's called a \"filter\",\n// but that's not a great name for it, since that implies a thing where\n// some bits pass through, and others are simply ignored. (That would\n// be a valid example of a transform, of course.)\n//\n// While the output is causally related to the input, it's not a\n// necessarily symmetric or synchronous transformation. For example,\n// a zlib stream might take multiple plain-text writes(), and then\n// emit a single compressed chunk some time in the future.\n//\n// Here's how this works:\n//\n// The Transform stream has all the aspects of the readable and writable\n// stream classes. When you write(chunk), that calls _write(chunk,cb)\n// internally, and returns false if there's a lot of pending writes\n// buffered up. When you call read(), that calls _read(n) until\n// there's enough pending readable data buffered up.\n//\n// In a transform stream, the written data is placed in a buffer. When\n// _read(n) is called, it transforms the queued up data, calling the\n// buffered _write cb's as it consumes chunks. If consuming a single\n// written chunk would result in multiple output chunks, then the first\n// outputted bit calls the readcb, and subsequent chunks just go into\n// the read buffer, and will cause it to emit 'readable' if necessary.\n//\n// This way, back-pressure is actually determined by the reading side,\n// since _read has to be called to start processing a new chunk. However,\n// a pathological inflate type of transform can cause excessive buffering\n// here. For example, imagine a stream where every byte of input is\n// interpreted as an integer from 0-255, and then results in that many\n// bytes of output. Writing the 4 bytes {ff,ff,ff,ff} would result in\n// 1kb of data being output. In this case, you could write a very small\n// amount of input, and end up with a very large amount of output. In\n// such a pathological inflating mechanism, there'd be no way to tell\n// the system to stop doing the transform. A single 4MB write could\n// cause the system to run out of memory.\n//\n// However, even in such a pathological case, only a single written chunk\n// would be consumed, and then the rest would wait (un-transformed) until\n// the results of the previous transformed chunk were consumed.\n\n'use strict';\n\nmodule.exports = Transform;\nvar _require$codes = require('../errors').codes,\n ERR_METHOD_NOT_IMPLEMENTED = _require$codes.ERR_METHOD_NOT_IMPLEMENTED,\n ERR_MULTIPLE_CALLBACK = _require$codes.ERR_MULTIPLE_CALLBACK,\n ERR_TRANSFORM_ALREADY_TRANSFORMING = _require$codes.ERR_TRANSFORM_ALREADY_TRANSFORMING,\n ERR_TRANSFORM_WITH_LENGTH_0 = _require$codes.ERR_TRANSFORM_WITH_LENGTH_0;\nvar Duplex = require('./_stream_duplex');\nrequire('inherits')(Transform, Duplex);\nfunction afterTransform(er, data) {\n var ts = this._transformState;\n ts.transforming = false;\n var cb = ts.writecb;\n if (cb === null) {\n return this.emit('error', new ERR_MULTIPLE_CALLBACK());\n }\n ts.writechunk = null;\n ts.writecb = null;\n if (data != null)\n // single equals check for both `null` and `undefined`\n this.push(data);\n cb(er);\n var rs = this._readableState;\n rs.reading = false;\n if (rs.needReadable || rs.length < rs.highWaterMark) {\n this._read(rs.highWaterMark);\n }\n}\nfunction Transform(options) {\n if (!(this instanceof Transform)) return new Transform(options);\n Duplex.call(this, options);\n this._transformState = {\n afterTransform: afterTransform.bind(this),\n needTransform: false,\n transforming: false,\n writecb: null,\n writechunk: null,\n writeencoding: null\n };\n\n // start out asking for a readable event once data is transformed.\n this._readableState.needReadable = true;\n\n // we have implemented the _read method, and done the other things\n // that Readable wants before the first _read call, so unset the\n // sync guard flag.\n this._readableState.sync = false;\n if (options) {\n if (typeof options.transform === 'function') this._transform = options.transform;\n if (typeof options.flush === 'function') this._flush = options.flush;\n }\n\n // When the writable side finishes, then flush out anything remaining.\n this.on('prefinish', prefinish);\n}\nfunction prefinish() {\n var _this = this;\n if (typeof this._flush === 'function' && !this._readableState.destroyed) {\n this._flush(function (er, data) {\n done(_this, er, data);\n });\n } else {\n done(this, null, null);\n }\n}\nTransform.prototype.push = function (chunk, encoding) {\n this._transformState.needTransform = false;\n return Duplex.prototype.push.call(this, chunk, encoding);\n};\n\n// This is the part where you do stuff!\n// override this function in implementation classes.\n// 'chunk' is an input chunk.\n//\n// Call `push(newChunk)` to pass along transformed output\n// to the readable side. You may call 'push' zero or more times.\n//\n// Call `cb(err)` when you are done with this chunk. If you pass\n// an error, then that'll put the hurt on the whole operation. If you\n// never call cb(), then you'll never get another chunk.\nTransform.prototype._transform = function (chunk, encoding, cb) {\n cb(new ERR_METHOD_NOT_IMPLEMENTED('_transform()'));\n};\nTransform.prototype._write = function (chunk, encoding, cb) {\n var ts = this._transformState;\n ts.writecb = cb;\n ts.writechunk = chunk;\n ts.writeencoding = encoding;\n if (!ts.transforming) {\n var rs = this._readableState;\n if (ts.needTransform || rs.needReadable || rs.length < rs.highWaterMark) this._read(rs.highWaterMark);\n }\n};\n\n// Doesn't matter what the args are here.\n// _transform does all the work.\n// That we got here means that the readable side wants more data.\nTransform.prototype._read = function (n) {\n var ts = this._transformState;\n if (ts.writechunk !== null && !ts.transforming) {\n ts.transforming = true;\n this._transform(ts.writechunk, ts.writeencoding, ts.afterTransform);\n } else {\n // mark that we need a transform, so that any data that comes in\n // will get processed, now that we've asked for it.\n ts.needTransform = true;\n }\n};\nTransform.prototype._destroy = function (err, cb) {\n Duplex.prototype._destroy.call(this, err, function (err2) {\n cb(err2);\n });\n};\nfunction done(stream, er, data) {\n if (er) return stream.emit('error', er);\n if (data != null)\n // single equals check for both `null` and `undefined`\n stream.push(data);\n\n // TODO(BridgeAR): Write a test for these two error cases\n // if there's nothing in the write buffer, then that means\n // that nothing more will ever be provided\n if (stream._writableState.length) throw new ERR_TRANSFORM_WITH_LENGTH_0();\n if (stream._transformState.transforming) throw new ERR_TRANSFORM_ALREADY_TRANSFORMING();\n return stream.push(null);\n}","// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n\n// A bit simpler than readable streams.\n// Implement an async ._write(chunk, encoding, cb), and it'll handle all\n// the drain event emission and buffering.\n\n'use strict';\n\nmodule.exports = Writable;\n\n/* */\nfunction WriteReq(chunk, encoding, cb) {\n this.chunk = chunk;\n this.encoding = encoding;\n this.callback = cb;\n this.next = null;\n}\n\n// It seems a linked list but it is not\n// there will be only 2 of these for each stream\nfunction CorkedRequest(state) {\n var _this = this;\n this.next = null;\n this.entry = null;\n this.finish = function () {\n onCorkedFinish(_this, state);\n };\n}\n/* */\n\n/**/\nvar Duplex;\n/**/\n\nWritable.WritableState = WritableState;\n\n/**/\nvar internalUtil = {\n deprecate: require('util-deprecate')\n};\n/**/\n\n/**/\nvar Stream = require('./internal/streams/stream');\n/**/\n\nvar Buffer = require('buffer').Buffer;\nvar OurUint8Array = (typeof global !== 'undefined' ? global : typeof window !== 'undefined' ? window : typeof self !== 'undefined' ? self : {}).Uint8Array || function () {};\nfunction _uint8ArrayToBuffer(chunk) {\n return Buffer.from(chunk);\n}\nfunction _isUint8Array(obj) {\n return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;\n}\nvar destroyImpl = require('./internal/streams/destroy');\nvar _require = require('./internal/streams/state'),\n getHighWaterMark = _require.getHighWaterMark;\nvar _require$codes = require('../errors').codes,\n ERR_INVALID_ARG_TYPE = _require$codes.ERR_INVALID_ARG_TYPE,\n ERR_METHOD_NOT_IMPLEMENTED = _require$codes.ERR_METHOD_NOT_IMPLEMENTED,\n ERR_MULTIPLE_CALLBACK = _require$codes.ERR_MULTIPLE_CALLBACK,\n ERR_STREAM_CANNOT_PIPE = _require$codes.ERR_STREAM_CANNOT_PIPE,\n ERR_STREAM_DESTROYED = _require$codes.ERR_STREAM_DESTROYED,\n ERR_STREAM_NULL_VALUES = _require$codes.ERR_STREAM_NULL_VALUES,\n ERR_STREAM_WRITE_AFTER_END = _require$codes.ERR_STREAM_WRITE_AFTER_END,\n ERR_UNKNOWN_ENCODING = _require$codes.ERR_UNKNOWN_ENCODING;\nvar errorOrDestroy = destroyImpl.errorOrDestroy;\nrequire('inherits')(Writable, Stream);\nfunction nop() {}\nfunction WritableState(options, stream, isDuplex) {\n Duplex = Duplex || require('./_stream_duplex');\n options = options || {};\n\n // Duplex streams are both readable and writable, but share\n // the same options object.\n // However, some cases require setting options to different\n // values for the readable and the writable sides of the duplex stream,\n // e.g. options.readableObjectMode vs. options.writableObjectMode, etc.\n if (typeof isDuplex !== 'boolean') isDuplex = stream instanceof Duplex;\n\n // object stream flag to indicate whether or not this stream\n // contains buffers or objects.\n this.objectMode = !!options.objectMode;\n if (isDuplex) this.objectMode = this.objectMode || !!options.writableObjectMode;\n\n // the point at which write() starts returning false\n // Note: 0 is a valid value, means that we always return false if\n // the entire buffer is not flushed immediately on write()\n this.highWaterMark = getHighWaterMark(this, options, 'writableHighWaterMark', isDuplex);\n\n // if _final has been called\n this.finalCalled = false;\n\n // drain event flag.\n this.needDrain = false;\n // at the start of calling end()\n this.ending = false;\n // when end() has been called, and returned\n this.ended = false;\n // when 'finish' is emitted\n this.finished = false;\n\n // has it been destroyed\n this.destroyed = false;\n\n // should we decode strings into buffers before passing to _write?\n // this is here so that some node-core streams can optimize string\n // handling at a lower level.\n var noDecode = options.decodeStrings === false;\n this.decodeStrings = !noDecode;\n\n // Crypto is kind of old and crusty. Historically, its default string\n // encoding is 'binary' so we have to make this configurable.\n // Everything else in the universe uses 'utf8', though.\n this.defaultEncoding = options.defaultEncoding || 'utf8';\n\n // not an actual buffer we keep track of, but a measurement\n // of how much we're waiting to get pushed to some underlying\n // socket or file.\n this.length = 0;\n\n // a flag to see when we're in the middle of a write.\n this.writing = false;\n\n // when true all writes will be buffered until .uncork() call\n this.corked = 0;\n\n // a flag to be able to tell if the onwrite cb is called immediately,\n // or on a later tick. We set this to true at first, because any\n // actions that shouldn't happen until \"later\" should generally also\n // not happen before the first write call.\n this.sync = true;\n\n // a flag to know if we're processing previously buffered items, which\n // may call the _write() callback in the same tick, so that we don't\n // end up in an overlapped onwrite situation.\n this.bufferProcessing = false;\n\n // the callback that's passed to _write(chunk,cb)\n this.onwrite = function (er) {\n onwrite(stream, er);\n };\n\n // the callback that the user supplies to write(chunk,encoding,cb)\n this.writecb = null;\n\n // the amount that is being written when _write is called.\n this.writelen = 0;\n this.bufferedRequest = null;\n this.lastBufferedRequest = null;\n\n // number of pending user-supplied write callbacks\n // this must be 0 before 'finish' can be emitted\n this.pendingcb = 0;\n\n // emit prefinish if the only thing we're waiting for is _write cbs\n // This is relevant for synchronous Transform streams\n this.prefinished = false;\n\n // True if the error was already emitted and should not be thrown again\n this.errorEmitted = false;\n\n // Should close be emitted on destroy. Defaults to true.\n this.emitClose = options.emitClose !== false;\n\n // Should .destroy() be called after 'finish' (and potentially 'end')\n this.autoDestroy = !!options.autoDestroy;\n\n // count buffered requests\n this.bufferedRequestCount = 0;\n\n // allocate the first CorkedRequest, there is always\n // one allocated and free to use, and we maintain at most two\n this.corkedRequestsFree = new CorkedRequest(this);\n}\nWritableState.prototype.getBuffer = function getBuffer() {\n var current = this.bufferedRequest;\n var out = [];\n while (current) {\n out.push(current);\n current = current.next;\n }\n return out;\n};\n(function () {\n try {\n Object.defineProperty(WritableState.prototype, 'buffer', {\n get: internalUtil.deprecate(function writableStateBufferGetter() {\n return this.getBuffer();\n }, '_writableState.buffer is deprecated. Use _writableState.getBuffer ' + 'instead.', 'DEP0003')\n });\n } catch (_) {}\n})();\n\n// Test _writableState for inheritance to account for Duplex streams,\n// whose prototype chain only points to Readable.\nvar realHasInstance;\nif (typeof Symbol === 'function' && Symbol.hasInstance && typeof Function.prototype[Symbol.hasInstance] === 'function') {\n realHasInstance = Function.prototype[Symbol.hasInstance];\n Object.defineProperty(Writable, Symbol.hasInstance, {\n value: function value(object) {\n if (realHasInstance.call(this, object)) return true;\n if (this !== Writable) return false;\n return object && object._writableState instanceof WritableState;\n }\n });\n} else {\n realHasInstance = function realHasInstance(object) {\n return object instanceof this;\n };\n}\nfunction Writable(options) {\n Duplex = Duplex || require('./_stream_duplex');\n\n // Writable ctor is applied to Duplexes, too.\n // `realHasInstance` is necessary because using plain `instanceof`\n // would return false, as no `_writableState` property is attached.\n\n // Trying to use the custom `instanceof` for Writable here will also break the\n // Node.js LazyTransform implementation, which has a non-trivial getter for\n // `_writableState` that would lead to infinite recursion.\n\n // Checking for a Stream.Duplex instance is faster here instead of inside\n // the WritableState constructor, at least with V8 6.5\n var isDuplex = this instanceof Duplex;\n if (!isDuplex && !realHasInstance.call(Writable, this)) return new Writable(options);\n this._writableState = new WritableState(options, this, isDuplex);\n\n // legacy.\n this.writable = true;\n if (options) {\n if (typeof options.write === 'function') this._write = options.write;\n if (typeof options.writev === 'function') this._writev = options.writev;\n if (typeof options.destroy === 'function') this._destroy = options.destroy;\n if (typeof options.final === 'function') this._final = options.final;\n }\n Stream.call(this);\n}\n\n// Otherwise people can pipe Writable streams, which is just wrong.\nWritable.prototype.pipe = function () {\n errorOrDestroy(this, new ERR_STREAM_CANNOT_PIPE());\n};\nfunction writeAfterEnd(stream, cb) {\n var er = new ERR_STREAM_WRITE_AFTER_END();\n // TODO: defer error events consistently everywhere, not just the cb\n errorOrDestroy(stream, er);\n process.nextTick(cb, er);\n}\n\n// Checks that a user-supplied chunk is valid, especially for the particular\n// mode the stream is in. Currently this means that `null` is never accepted\n// and undefined/non-string values are only allowed in object mode.\nfunction validChunk(stream, state, chunk, cb) {\n var er;\n if (chunk === null) {\n er = new ERR_STREAM_NULL_VALUES();\n } else if (typeof chunk !== 'string' && !state.objectMode) {\n er = new ERR_INVALID_ARG_TYPE('chunk', ['string', 'Buffer'], chunk);\n }\n if (er) {\n errorOrDestroy(stream, er);\n process.nextTick(cb, er);\n return false;\n }\n return true;\n}\nWritable.prototype.write = function (chunk, encoding, cb) {\n var state = this._writableState;\n var ret = false;\n var isBuf = !state.objectMode && _isUint8Array(chunk);\n if (isBuf && !Buffer.isBuffer(chunk)) {\n chunk = _uint8ArrayToBuffer(chunk);\n }\n if (typeof encoding === 'function') {\n cb = encoding;\n encoding = null;\n }\n if (isBuf) encoding = 'buffer';else if (!encoding) encoding = state.defaultEncoding;\n if (typeof cb !== 'function') cb = nop;\n if (state.ending) writeAfterEnd(this, cb);else if (isBuf || validChunk(this, state, chunk, cb)) {\n state.pendingcb++;\n ret = writeOrBuffer(this, state, isBuf, chunk, encoding, cb);\n }\n return ret;\n};\nWritable.prototype.cork = function () {\n this._writableState.corked++;\n};\nWritable.prototype.uncork = function () {\n var state = this._writableState;\n if (state.corked) {\n state.corked--;\n if (!state.writing && !state.corked && !state.bufferProcessing && state.bufferedRequest) clearBuffer(this, state);\n }\n};\nWritable.prototype.setDefaultEncoding = function setDefaultEncoding(encoding) {\n // node::ParseEncoding() requires lower case.\n if (typeof encoding === 'string') encoding = encoding.toLowerCase();\n 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);\n this._writableState.defaultEncoding = encoding;\n return this;\n};\nObject.defineProperty(Writable.prototype, 'writableBuffer', {\n // making it explicit this property is not enumerable\n // because otherwise some prototype manipulation in\n // userland will fail\n enumerable: false,\n get: function get() {\n return this._writableState && this._writableState.getBuffer();\n }\n});\nfunction decodeChunk(state, chunk, encoding) {\n if (!state.objectMode && state.decodeStrings !== false && typeof chunk === 'string') {\n chunk = Buffer.from(chunk, encoding);\n }\n return chunk;\n}\nObject.defineProperty(Writable.prototype, 'writableHighWaterMark', {\n // making it explicit this property is not enumerable\n // because otherwise some prototype manipulation in\n // userland will fail\n enumerable: false,\n get: function get() {\n return this._writableState.highWaterMark;\n }\n});\n\n// if we're already writing something, then just put this\n// in the queue, and wait our turn. Otherwise, call _write\n// If we return false, then we need a drain event, so set that flag.\nfunction writeOrBuffer(stream, state, isBuf, chunk, encoding, cb) {\n if (!isBuf) {\n var newChunk = decodeChunk(state, chunk, encoding);\n if (chunk !== newChunk) {\n isBuf = true;\n encoding = 'buffer';\n chunk = newChunk;\n }\n }\n var len = state.objectMode ? 1 : chunk.length;\n state.length += len;\n var ret = state.length < state.highWaterMark;\n // we must ensure that previous needDrain will not be reset to false.\n if (!ret) state.needDrain = true;\n if (state.writing || state.corked) {\n var last = state.lastBufferedRequest;\n state.lastBufferedRequest = {\n chunk: chunk,\n encoding: encoding,\n isBuf: isBuf,\n callback: cb,\n next: null\n };\n if (last) {\n last.next = state.lastBufferedRequest;\n } else {\n state.bufferedRequest = state.lastBufferedRequest;\n }\n state.bufferedRequestCount += 1;\n } else {\n doWrite(stream, state, false, len, chunk, encoding, cb);\n }\n return ret;\n}\nfunction doWrite(stream, state, writev, len, chunk, encoding, cb) {\n state.writelen = len;\n state.writecb = cb;\n state.writing = true;\n state.sync = true;\n 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);\n state.sync = false;\n}\nfunction onwriteError(stream, state, sync, er, cb) {\n --state.pendingcb;\n if (sync) {\n // defer the callback if we are being called synchronously\n // to avoid piling up things on the stack\n process.nextTick(cb, er);\n // this can emit finish, and it will always happen\n // after error\n process.nextTick(finishMaybe, stream, state);\n stream._writableState.errorEmitted = true;\n errorOrDestroy(stream, er);\n } else {\n // the caller expect this to happen before if\n // it is async\n cb(er);\n stream._writableState.errorEmitted = true;\n errorOrDestroy(stream, er);\n // this can emit finish, but finish must\n // always follow error\n finishMaybe(stream, state);\n }\n}\nfunction onwriteStateUpdate(state) {\n state.writing = false;\n state.writecb = null;\n state.length -= state.writelen;\n state.writelen = 0;\n}\nfunction onwrite(stream, er) {\n var state = stream._writableState;\n var sync = state.sync;\n var cb = state.writecb;\n if (typeof cb !== 'function') throw new ERR_MULTIPLE_CALLBACK();\n onwriteStateUpdate(state);\n if (er) onwriteError(stream, state, sync, er, cb);else {\n // Check if we're actually ready to finish, but don't emit yet\n var finished = needFinish(state) || stream.destroyed;\n if (!finished && !state.corked && !state.bufferProcessing && state.bufferedRequest) {\n clearBuffer(stream, state);\n }\n if (sync) {\n process.nextTick(afterWrite, stream, state, finished, cb);\n } else {\n afterWrite(stream, state, finished, cb);\n }\n }\n}\nfunction afterWrite(stream, state, finished, cb) {\n if (!finished) onwriteDrain(stream, state);\n state.pendingcb--;\n cb();\n finishMaybe(stream, state);\n}\n\n// Must force callback to be called on nextTick, so that we don't\n// emit 'drain' before the write() consumer gets the 'false' return\n// value, and has a chance to attach a 'drain' listener.\nfunction onwriteDrain(stream, state) {\n if (state.length === 0 && state.needDrain) {\n state.needDrain = false;\n stream.emit('drain');\n }\n}\n\n// if there's something in the buffer waiting, then process it\nfunction clearBuffer(stream, state) {\n state.bufferProcessing = true;\n var entry = state.bufferedRequest;\n if (stream._writev && entry && entry.next) {\n // Fast case, write everything using _writev()\n var l = state.bufferedRequestCount;\n var buffer = new Array(l);\n var holder = state.corkedRequestsFree;\n holder.entry = entry;\n var count = 0;\n var allBuffers = true;\n while (entry) {\n buffer[count] = entry;\n if (!entry.isBuf) allBuffers = false;\n entry = entry.next;\n count += 1;\n }\n buffer.allBuffers = allBuffers;\n doWrite(stream, state, true, state.length, buffer, '', holder.finish);\n\n // doWrite is almost always async, defer these to save a bit of time\n // as the hot path ends with doWrite\n state.pendingcb++;\n state.lastBufferedRequest = null;\n if (holder.next) {\n state.corkedRequestsFree = holder.next;\n holder.next = null;\n } else {\n state.corkedRequestsFree = new CorkedRequest(state);\n }\n state.bufferedRequestCount = 0;\n } else {\n // Slow case, write chunks one-by-one\n while (entry) {\n var chunk = entry.chunk;\n var encoding = entry.encoding;\n var cb = entry.callback;\n var len = state.objectMode ? 1 : chunk.length;\n doWrite(stream, state, false, len, chunk, encoding, cb);\n entry = entry.next;\n state.bufferedRequestCount--;\n // if we didn't call the onwrite immediately, then\n // it means that we need to wait until it does.\n // also, that means that the chunk and cb are currently\n // being processed, so move the buffer counter past them.\n if (state.writing) {\n break;\n }\n }\n if (entry === null) state.lastBufferedRequest = null;\n }\n state.bufferedRequest = entry;\n state.bufferProcessing = false;\n}\nWritable.prototype._write = function (chunk, encoding, cb) {\n cb(new ERR_METHOD_NOT_IMPLEMENTED('_write()'));\n};\nWritable.prototype._writev = null;\nWritable.prototype.end = function (chunk, encoding, cb) {\n var state = this._writableState;\n if (typeof chunk === 'function') {\n cb = chunk;\n chunk = null;\n encoding = null;\n } else if (typeof encoding === 'function') {\n cb = encoding;\n encoding = null;\n }\n if (chunk !== null && chunk !== undefined) this.write(chunk, encoding);\n\n // .end() fully uncorks\n if (state.corked) {\n state.corked = 1;\n this.uncork();\n }\n\n // ignore unnecessary end() calls.\n if (!state.ending) endWritable(this, state, cb);\n return this;\n};\nObject.defineProperty(Writable.prototype, 'writableLength', {\n // making it explicit this property is not enumerable\n // because otherwise some prototype manipulation in\n // userland will fail\n enumerable: false,\n get: function get() {\n return this._writableState.length;\n }\n});\nfunction needFinish(state) {\n return state.ending && state.length === 0 && state.bufferedRequest === null && !state.finished && !state.writing;\n}\nfunction callFinal(stream, state) {\n stream._final(function (err) {\n state.pendingcb--;\n if (err) {\n errorOrDestroy(stream, err);\n }\n state.prefinished = true;\n stream.emit('prefinish');\n finishMaybe(stream, state);\n });\n}\nfunction prefinish(stream, state) {\n if (!state.prefinished && !state.finalCalled) {\n if (typeof stream._final === 'function' && !state.destroyed) {\n state.pendingcb++;\n state.finalCalled = true;\n process.nextTick(callFinal, stream, state);\n } else {\n state.prefinished = true;\n stream.emit('prefinish');\n }\n }\n}\nfunction finishMaybe(stream, state) {\n var need = needFinish(state);\n if (need) {\n prefinish(stream, state);\n if (state.pendingcb === 0) {\n state.finished = true;\n stream.emit('finish');\n if (state.autoDestroy) {\n // In case of duplex streams we need a way to detect\n // if the readable side is ready for autoDestroy as well\n var rState = stream._readableState;\n if (!rState || rState.autoDestroy && rState.endEmitted) {\n stream.destroy();\n }\n }\n }\n }\n return need;\n}\nfunction endWritable(stream, state, cb) {\n state.ending = true;\n finishMaybe(stream, state);\n if (cb) {\n if (state.finished) process.nextTick(cb);else stream.once('finish', cb);\n }\n state.ended = true;\n stream.writable = false;\n}\nfunction onCorkedFinish(corkReq, state, err) {\n var entry = corkReq.entry;\n corkReq.entry = null;\n while (entry) {\n var cb = entry.callback;\n state.pendingcb--;\n cb(err);\n entry = entry.next;\n }\n\n // reuse the free corkReq.\n state.corkedRequestsFree.next = corkReq;\n}\nObject.defineProperty(Writable.prototype, 'destroyed', {\n // making it explicit this property is not enumerable\n // because otherwise some prototype manipulation in\n // userland will fail\n enumerable: false,\n get: function get() {\n if (this._writableState === undefined) {\n return false;\n }\n return this._writableState.destroyed;\n },\n set: function set(value) {\n // we ignore the value if the stream\n // has not been initialized yet\n if (!this._writableState) {\n return;\n }\n\n // backward compatibility, the user is explicitly\n // managing destroyed\n this._writableState.destroyed = value;\n }\n});\nWritable.prototype.destroy = destroyImpl.destroy;\nWritable.prototype._undestroy = destroyImpl.undestroy;\nWritable.prototype._destroy = function (err, cb) {\n cb(err);\n};","'use strict';\n\nvar _Object$setPrototypeO;\nfunction _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; }\nfunction _toPropertyKey(arg) { var key = _toPrimitive(arg, \"string\"); return typeof key === \"symbol\" ? key : String(key); }\nfunction _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); }\nvar finished = require('./end-of-stream');\nvar kLastResolve = Symbol('lastResolve');\nvar kLastReject = Symbol('lastReject');\nvar kError = Symbol('error');\nvar kEnded = Symbol('ended');\nvar kLastPromise = Symbol('lastPromise');\nvar kHandlePromise = Symbol('handlePromise');\nvar kStream = Symbol('stream');\nfunction createIterResult(value, done) {\n return {\n value: value,\n done: done\n };\n}\nfunction readAndResolve(iter) {\n var resolve = iter[kLastResolve];\n if (resolve !== null) {\n var data = iter[kStream].read();\n // we defer if data is null\n // we can be expecting either 'end' or\n // 'error'\n if (data !== null) {\n iter[kLastPromise] = null;\n iter[kLastResolve] = null;\n iter[kLastReject] = null;\n resolve(createIterResult(data, false));\n }\n }\n}\nfunction onReadable(iter) {\n // we wait for the next tick, because it might\n // emit an error with process.nextTick\n process.nextTick(readAndResolve, iter);\n}\nfunction wrapForNext(lastPromise, iter) {\n return function (resolve, reject) {\n lastPromise.then(function () {\n if (iter[kEnded]) {\n resolve(createIterResult(undefined, true));\n return;\n }\n iter[kHandlePromise](resolve, reject);\n }, reject);\n };\n}\nvar AsyncIteratorPrototype = Object.getPrototypeOf(function () {});\nvar ReadableStreamAsyncIteratorPrototype = Object.setPrototypeOf((_Object$setPrototypeO = {\n get stream() {\n return this[kStream];\n },\n next: function next() {\n var _this = this;\n // if we have detected an error in the meanwhile\n // reject straight away\n var error = this[kError];\n if (error !== null) {\n return Promise.reject(error);\n }\n if (this[kEnded]) {\n return Promise.resolve(createIterResult(undefined, true));\n }\n if (this[kStream].destroyed) {\n // We need to defer via nextTick because if .destroy(err) is\n // called, the error will be emitted via nextTick, and\n // we cannot guarantee that there is no error lingering around\n // waiting to be emitted.\n return new Promise(function (resolve, reject) {\n process.nextTick(function () {\n if (_this[kError]) {\n reject(_this[kError]);\n } else {\n resolve(createIterResult(undefined, true));\n }\n });\n });\n }\n\n // if we have multiple next() calls\n // we will wait for the previous Promise to finish\n // this logic is optimized to support for await loops,\n // where next() is only called once at a time\n var lastPromise = this[kLastPromise];\n var promise;\n if (lastPromise) {\n promise = new Promise(wrapForNext(lastPromise, this));\n } else {\n // fast path needed to support multiple this.push()\n // without triggering the next() queue\n var data = this[kStream].read();\n if (data !== null) {\n return Promise.resolve(createIterResult(data, false));\n }\n promise = new Promise(this[kHandlePromise]);\n }\n this[kLastPromise] = promise;\n return promise;\n }\n}, _defineProperty(_Object$setPrototypeO, Symbol.asyncIterator, function () {\n return this;\n}), _defineProperty(_Object$setPrototypeO, \"return\", function _return() {\n var _this2 = this;\n // destroy(err, cb) is a private API\n // we can guarantee we have that here, because we control the\n // Readable class this is attached to\n return new Promise(function (resolve, reject) {\n _this2[kStream].destroy(null, function (err) {\n if (err) {\n reject(err);\n return;\n }\n resolve(createIterResult(undefined, true));\n });\n });\n}), _Object$setPrototypeO), AsyncIteratorPrototype);\nvar createReadableStreamAsyncIterator = function createReadableStreamAsyncIterator(stream) {\n var _Object$create;\n var iterator = Object.create(ReadableStreamAsyncIteratorPrototype, (_Object$create = {}, _defineProperty(_Object$create, kStream, {\n value: stream,\n writable: true\n }), _defineProperty(_Object$create, kLastResolve, {\n value: null,\n writable: true\n }), _defineProperty(_Object$create, kLastReject, {\n value: null,\n writable: true\n }), _defineProperty(_Object$create, kError, {\n value: null,\n writable: true\n }), _defineProperty(_Object$create, kEnded, {\n value: stream._readableState.endEmitted,\n writable: true\n }), _defineProperty(_Object$create, kHandlePromise, {\n value: function value(resolve, reject) {\n var data = iterator[kStream].read();\n if (data) {\n iterator[kLastPromise] = null;\n iterator[kLastResolve] = null;\n iterator[kLastReject] = null;\n resolve(createIterResult(data, false));\n } else {\n iterator[kLastResolve] = resolve;\n iterator[kLastReject] = reject;\n }\n },\n writable: true\n }), _Object$create));\n iterator[kLastPromise] = null;\n finished(stream, function (err) {\n if (err && err.code !== 'ERR_STREAM_PREMATURE_CLOSE') {\n var reject = iterator[kLastReject];\n // reject if we are waiting for data in the Promise\n // returned by next() and store the error\n if (reject !== null) {\n iterator[kLastPromise] = null;\n iterator[kLastResolve] = null;\n iterator[kLastReject] = null;\n reject(err);\n }\n iterator[kError] = err;\n return;\n }\n var resolve = iterator[kLastResolve];\n if (resolve !== null) {\n iterator[kLastPromise] = null;\n iterator[kLastResolve] = null;\n iterator[kLastReject] = null;\n resolve(createIterResult(undefined, true));\n }\n iterator[kEnded] = true;\n });\n stream.on('readable', onReadable.bind(null, iterator));\n return iterator;\n};\nmodule.exports = createReadableStreamAsyncIterator;","'use strict';\n\nfunction 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; }\nfunction _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; }\nfunction _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; }\nfunction _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError(\"Cannot call a class as a function\"); } }\nfunction _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); } }\nfunction _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); Object.defineProperty(Constructor, \"prototype\", { writable: false }); return Constructor; }\nfunction _toPropertyKey(arg) { var key = _toPrimitive(arg, \"string\"); return typeof key === \"symbol\" ? key : String(key); }\nfunction _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); }\nvar _require = require('buffer'),\n Buffer = _require.Buffer;\nvar _require2 = require('util'),\n inspect = _require2.inspect;\nvar custom = inspect && inspect.custom || 'inspect';\nfunction copyBuffer(src, target, offset) {\n Buffer.prototype.copy.call(src, target, offset);\n}\nmodule.exports = /*#__PURE__*/function () {\n function BufferList() {\n _classCallCheck(this, BufferList);\n this.head = null;\n this.tail = null;\n this.length = 0;\n }\n _createClass(BufferList, [{\n key: \"push\",\n value: function push(v) {\n var entry = {\n data: v,\n next: null\n };\n if (this.length > 0) this.tail.next = entry;else this.head = entry;\n this.tail = entry;\n ++this.length;\n }\n }, {\n key: \"unshift\",\n value: function unshift(v) {\n var entry = {\n data: v,\n next: this.head\n };\n if (this.length === 0) this.tail = entry;\n this.head = entry;\n ++this.length;\n }\n }, {\n key: \"shift\",\n value: function shift() {\n if (this.length === 0) return;\n var ret = this.head.data;\n if (this.length === 1) this.head = this.tail = null;else this.head = this.head.next;\n --this.length;\n return ret;\n }\n }, {\n key: \"clear\",\n value: function clear() {\n this.head = this.tail = null;\n this.length = 0;\n }\n }, {\n key: \"join\",\n value: function join(s) {\n if (this.length === 0) return '';\n var p = this.head;\n var ret = '' + p.data;\n while (p = p.next) ret += s + p.data;\n return ret;\n }\n }, {\n key: \"concat\",\n value: function concat(n) {\n if (this.length === 0) return Buffer.alloc(0);\n var ret = Buffer.allocUnsafe(n >>> 0);\n var p = this.head;\n var i = 0;\n while (p) {\n copyBuffer(p.data, ret, i);\n i += p.data.length;\n p = p.next;\n }\n return ret;\n }\n\n // Consumes a specified amount of bytes or characters from the buffered data.\n }, {\n key: \"consume\",\n value: function consume(n, hasStrings) {\n var ret;\n if (n < this.head.data.length) {\n // `slice` is the same for buffers and strings.\n ret = this.head.data.slice(0, n);\n this.head.data = this.head.data.slice(n);\n } else if (n === this.head.data.length) {\n // First chunk is a perfect match.\n ret = this.shift();\n } else {\n // Result spans more than one buffer.\n ret = hasStrings ? this._getString(n) : this._getBuffer(n);\n }\n return ret;\n }\n }, {\n key: \"first\",\n value: function first() {\n return this.head.data;\n }\n\n // Consumes a specified amount of characters from the buffered data.\n }, {\n key: \"_getString\",\n value: function _getString(n) {\n var p = this.head;\n var c = 1;\n var ret = p.data;\n n -= ret.length;\n while (p = p.next) {\n var str = p.data;\n var nb = n > str.length ? str.length : n;\n if (nb === str.length) ret += str;else ret += str.slice(0, n);\n n -= nb;\n if (n === 0) {\n if (nb === str.length) {\n ++c;\n if (p.next) this.head = p.next;else this.head = this.tail = null;\n } else {\n this.head = p;\n p.data = str.slice(nb);\n }\n break;\n }\n ++c;\n }\n this.length -= c;\n return ret;\n }\n\n // Consumes a specified amount of bytes from the buffered data.\n }, {\n key: \"_getBuffer\",\n value: function _getBuffer(n) {\n var ret = Buffer.allocUnsafe(n);\n var p = this.head;\n var c = 1;\n p.data.copy(ret);\n n -= p.data.length;\n while (p = p.next) {\n var buf = p.data;\n var nb = n > buf.length ? buf.length : n;\n buf.copy(ret, ret.length - n, 0, nb);\n n -= nb;\n if (n === 0) {\n if (nb === buf.length) {\n ++c;\n if (p.next) this.head = p.next;else this.head = this.tail = null;\n } else {\n this.head = p;\n p.data = buf.slice(nb);\n }\n break;\n }\n ++c;\n }\n this.length -= c;\n return ret;\n }\n\n // Make sure the linked list only shows the minimal necessary information.\n }, {\n key: custom,\n value: function value(_, options) {\n return inspect(this, _objectSpread(_objectSpread({}, options), {}, {\n // Only inspect one level.\n depth: 0,\n // It should not recurse.\n customInspect: false\n }));\n }\n }]);\n return BufferList;\n}();","'use strict';\n\n// undocumented cb() API, needed for core, not for public API\nfunction destroy(err, cb) {\n var _this = this;\n var readableDestroyed = this._readableState && this._readableState.destroyed;\n var writableDestroyed = this._writableState && this._writableState.destroyed;\n if (readableDestroyed || writableDestroyed) {\n if (cb) {\n cb(err);\n } else if (err) {\n if (!this._writableState) {\n process.nextTick(emitErrorNT, this, err);\n } else if (!this._writableState.errorEmitted) {\n this._writableState.errorEmitted = true;\n process.nextTick(emitErrorNT, this, err);\n }\n }\n return this;\n }\n\n // we set destroyed to true before firing error callbacks in order\n // to make it re-entrance safe in case destroy() is called within callbacks\n\n if (this._readableState) {\n this._readableState.destroyed = true;\n }\n\n // if this is a duplex stream mark the writable part as destroyed as well\n if (this._writableState) {\n this._writableState.destroyed = true;\n }\n this._destroy(err || null, function (err) {\n if (!cb && err) {\n if (!_this._writableState) {\n process.nextTick(emitErrorAndCloseNT, _this, err);\n } else if (!_this._writableState.errorEmitted) {\n _this._writableState.errorEmitted = true;\n process.nextTick(emitErrorAndCloseNT, _this, err);\n } else {\n process.nextTick(emitCloseNT, _this);\n }\n } else if (cb) {\n process.nextTick(emitCloseNT, _this);\n cb(err);\n } else {\n process.nextTick(emitCloseNT, _this);\n }\n });\n return this;\n}\nfunction emitErrorAndCloseNT(self, err) {\n emitErrorNT(self, err);\n emitCloseNT(self);\n}\nfunction emitCloseNT(self) {\n if (self._writableState && !self._writableState.emitClose) return;\n if (self._readableState && !self._readableState.emitClose) return;\n self.emit('close');\n}\nfunction undestroy() {\n if (this._readableState) {\n this._readableState.destroyed = false;\n this._readableState.reading = false;\n this._readableState.ended = false;\n this._readableState.endEmitted = false;\n }\n if (this._writableState) {\n this._writableState.destroyed = false;\n this._writableState.ended = false;\n this._writableState.ending = false;\n this._writableState.finalCalled = false;\n this._writableState.prefinished = false;\n this._writableState.finished = false;\n this._writableState.errorEmitted = false;\n }\n}\nfunction emitErrorNT(self, err) {\n self.emit('error', err);\n}\nfunction errorOrDestroy(stream, err) {\n // We have tests that rely on errors being emitted\n // in the same tick, so changing this is semver major.\n // For now when you opt-in to autoDestroy we allow\n // the error to be emitted nextTick. In a future\n // semver major update we should change the default to this.\n\n var rState = stream._readableState;\n var wState = stream._writableState;\n if (rState && rState.autoDestroy || wState && wState.autoDestroy) stream.destroy(err);else stream.emit('error', err);\n}\nmodule.exports = {\n destroy: destroy,\n undestroy: undestroy,\n errorOrDestroy: errorOrDestroy\n};","// Ported from https://github.com/mafintosh/end-of-stream with\n// permission from the author, Mathias Buus (@mafintosh).\n\n'use strict';\n\nvar ERR_STREAM_PREMATURE_CLOSE = require('../../../errors').codes.ERR_STREAM_PREMATURE_CLOSE;\nfunction once(callback) {\n var called = false;\n return function () {\n if (called) return;\n called = true;\n for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {\n args[_key] = arguments[_key];\n }\n callback.apply(this, args);\n };\n}\nfunction noop() {}\nfunction isRequest(stream) {\n return stream.setHeader && typeof stream.abort === 'function';\n}\nfunction eos(stream, opts, callback) {\n if (typeof opts === 'function') return eos(stream, null, opts);\n if (!opts) opts = {};\n callback = once(callback || noop);\n var readable = opts.readable || opts.readable !== false && stream.readable;\n var writable = opts.writable || opts.writable !== false && stream.writable;\n var onlegacyfinish = function onlegacyfinish() {\n if (!stream.writable) onfinish();\n };\n var writableEnded = stream._writableState && stream._writableState.finished;\n var onfinish = function onfinish() {\n writable = false;\n writableEnded = true;\n if (!readable) callback.call(stream);\n };\n var readableEnded = stream._readableState && stream._readableState.endEmitted;\n var onend = function onend() {\n readable = false;\n readableEnded = true;\n if (!writable) callback.call(stream);\n };\n var onerror = function onerror(err) {\n callback.call(stream, err);\n };\n var onclose = function onclose() {\n var err;\n if (readable && !readableEnded) {\n if (!stream._readableState || !stream._readableState.ended) err = new ERR_STREAM_PREMATURE_CLOSE();\n return callback.call(stream, err);\n }\n if (writable && !writableEnded) {\n if (!stream._writableState || !stream._writableState.ended) err = new ERR_STREAM_PREMATURE_CLOSE();\n return callback.call(stream, err);\n }\n };\n var onrequest = function onrequest() {\n stream.req.on('finish', onfinish);\n };\n if (isRequest(stream)) {\n stream.on('complete', onfinish);\n stream.on('abort', onclose);\n if (stream.req) onrequest();else stream.on('request', onrequest);\n } else if (writable && !stream._writableState) {\n // legacy streams\n stream.on('end', onlegacyfinish);\n stream.on('close', onlegacyfinish);\n }\n stream.on('end', onend);\n stream.on('finish', onfinish);\n if (opts.error !== false) stream.on('error', onerror);\n stream.on('close', onclose);\n return function () {\n stream.removeListener('complete', onfinish);\n stream.removeListener('abort', onclose);\n stream.removeListener('request', onrequest);\n if (stream.req) stream.req.removeListener('finish', onfinish);\n stream.removeListener('end', onlegacyfinish);\n stream.removeListener('close', onlegacyfinish);\n stream.removeListener('finish', onfinish);\n stream.removeListener('end', onend);\n stream.removeListener('error', onerror);\n stream.removeListener('close', onclose);\n };\n}\nmodule.exports = eos;","module.exports = function () {\n throw new Error('Readable.from is not available in the browser')\n};\n","// Ported from https://github.com/mafintosh/pump with\n// permission from the author, Mathias Buus (@mafintosh).\n\n'use strict';\n\nvar eos;\nfunction once(callback) {\n var called = false;\n return function () {\n if (called) return;\n called = true;\n callback.apply(void 0, arguments);\n };\n}\nvar _require$codes = require('../../../errors').codes,\n ERR_MISSING_ARGS = _require$codes.ERR_MISSING_ARGS,\n ERR_STREAM_DESTROYED = _require$codes.ERR_STREAM_DESTROYED;\nfunction noop(err) {\n // Rethrow the error if it exists to avoid swallowing it\n if (err) throw err;\n}\nfunction isRequest(stream) {\n return stream.setHeader && typeof stream.abort === 'function';\n}\nfunction destroyer(stream, reading, writing, callback) {\n callback = once(callback);\n var closed = false;\n stream.on('close', function () {\n closed = true;\n });\n if (eos === undefined) eos = require('./end-of-stream');\n eos(stream, {\n readable: reading,\n writable: writing\n }, function (err) {\n if (err) return callback(err);\n closed = true;\n callback();\n });\n var destroyed = false;\n return function (err) {\n if (closed) return;\n if (destroyed) return;\n destroyed = true;\n\n // request.destroy just do .end - .abort is what we want\n if (isRequest(stream)) return stream.abort();\n if (typeof stream.destroy === 'function') return stream.destroy();\n callback(err || new ERR_STREAM_DESTROYED('pipe'));\n };\n}\nfunction call(fn) {\n fn();\n}\nfunction pipe(from, to) {\n return from.pipe(to);\n}\nfunction popCallback(streams) {\n if (!streams.length) return noop;\n if (typeof streams[streams.length - 1] !== 'function') return noop;\n return streams.pop();\n}\nfunction pipeline() {\n for (var _len = arguments.length, streams = new Array(_len), _key = 0; _key < _len; _key++) {\n streams[_key] = arguments[_key];\n }\n var callback = popCallback(streams);\n if (Array.isArray(streams[0])) streams = streams[0];\n if (streams.length < 2) {\n throw new ERR_MISSING_ARGS('streams');\n }\n var error;\n var destroys = streams.map(function (stream, i) {\n var reading = i < streams.length - 1;\n var writing = i > 0;\n return destroyer(stream, reading, writing, function (err) {\n if (!error) error = err;\n if (err) destroys.forEach(call);\n if (reading) return;\n destroys.forEach(call);\n callback(error);\n });\n });\n return streams.reduce(pipe);\n}\nmodule.exports = pipeline;","'use strict';\n\nvar ERR_INVALID_OPT_VALUE = require('../../../errors').codes.ERR_INVALID_OPT_VALUE;\nfunction highWaterMarkFrom(options, isDuplex, duplexKey) {\n return options.highWaterMark != null ? options.highWaterMark : isDuplex ? options[duplexKey] : null;\n}\nfunction getHighWaterMark(state, options, duplexKey, isDuplex) {\n var hwm = highWaterMarkFrom(options, isDuplex, duplexKey);\n if (hwm != null) {\n if (!(isFinite(hwm) && Math.floor(hwm) === hwm) || hwm < 0) {\n var name = isDuplex ? duplexKey : 'highWaterMark';\n throw new ERR_INVALID_OPT_VALUE(name, hwm);\n }\n return Math.floor(hwm);\n }\n\n // Default value\n return state.objectMode ? 16 : 16 * 1024;\n}\nmodule.exports = {\n getHighWaterMark: getHighWaterMark\n};","module.exports = require('events').EventEmitter;\n","exports = module.exports = require('./lib/_stream_readable.js');\nexports.Stream = exports;\nexports.Readable = exports;\nexports.Writable = require('./lib/_stream_writable.js');\nexports.Duplex = require('./lib/_stream_duplex.js');\nexports.Transform = require('./lib/_stream_transform.js');\nexports.PassThrough = require('./lib/_stream_passthrough.js');\nexports.finished = require('./lib/internal/streams/end-of-stream.js');\nexports.pipeline = require('./lib/internal/streams/pipeline.js');\n","/* eslint-disable node/no-deprecated-api */\nvar buffer = require('buffer')\nvar Buffer = buffer.Buffer\n\n// alternative to using Object.keys for old browsers\nfunction copyProps (src, dst) {\n for (var key in src) {\n dst[key] = src[key]\n }\n}\nif (Buffer.from && Buffer.alloc && Buffer.allocUnsafe && Buffer.allocUnsafeSlow) {\n module.exports = buffer\n} else {\n // Copy properties from require('buffer')\n copyProps(buffer, exports)\n exports.Buffer = SafeBuffer\n}\n\nfunction SafeBuffer (arg, encodingOrOffset, length) {\n return Buffer(arg, encodingOrOffset, length)\n}\n\n// Copy static methods from Buffer\ncopyProps(Buffer, SafeBuffer)\n\nSafeBuffer.from = function (arg, encodingOrOffset, length) {\n if (typeof arg === 'number') {\n throw new TypeError('Argument must not be a number')\n }\n return Buffer(arg, encodingOrOffset, length)\n}\n\nSafeBuffer.alloc = function (size, fill, encoding) {\n if (typeof size !== 'number') {\n throw new TypeError('Argument must be a number')\n }\n var buf = Buffer(size)\n if (fill !== undefined) {\n if (typeof encoding === 'string') {\n buf.fill(fill, encoding)\n } else {\n buf.fill(fill)\n }\n } else {\n buf.fill(0)\n }\n return buf\n}\n\nSafeBuffer.allocUnsafe = function (size) {\n if (typeof size !== 'number') {\n throw new TypeError('Argument must be a number')\n }\n return Buffer(size)\n}\n\nSafeBuffer.allocUnsafeSlow = function (size) {\n if (typeof size !== 'number') {\n throw new TypeError('Argument must be a number')\n }\n return buffer.SlowBuffer(size)\n}\n","const debug = require('../internal/debug')\nconst { MAX_LENGTH, MAX_SAFE_INTEGER } = require('../internal/constants')\nconst { safeRe: re, t } = require('../internal/re')\n\nconst parseOptions = require('../internal/parse-options')\nconst { compareIdentifiers } = require('../internal/identifiers')\nclass SemVer {\n constructor (version, options) {\n options = parseOptions(options)\n\n if (version instanceof SemVer) {\n if (version.loose === !!options.loose &&\n version.includePrerelease === !!options.includePrerelease) {\n return version\n } else {\n version = version.version\n }\n } else if (typeof version !== 'string') {\n throw new TypeError(`Invalid version. Must be a string. Got type \"${typeof version}\".`)\n }\n\n if (version.length > MAX_LENGTH) {\n throw new TypeError(\n `version is longer than ${MAX_LENGTH} characters`\n )\n }\n\n debug('SemVer', version, options)\n this.options = options\n this.loose = !!options.loose\n // this isn't actually relevant for versions, but keep it so that we\n // don't run into trouble passing this.options around.\n this.includePrerelease = !!options.includePrerelease\n\n const m = version.trim().match(options.loose ? re[t.LOOSE] : re[t.FULL])\n\n if (!m) {\n throw new TypeError(`Invalid Version: ${version}`)\n }\n\n this.raw = version\n\n // these are actually numbers\n this.major = +m[1]\n this.minor = +m[2]\n this.patch = +m[3]\n\n if (this.major > MAX_SAFE_INTEGER || this.major < 0) {\n throw new TypeError('Invalid major version')\n }\n\n if (this.minor > MAX_SAFE_INTEGER || this.minor < 0) {\n throw new TypeError('Invalid minor version')\n }\n\n if (this.patch > MAX_SAFE_INTEGER || this.patch < 0) {\n throw new TypeError('Invalid patch version')\n }\n\n // numberify any prerelease numeric ids\n if (!m[4]) {\n this.prerelease = []\n } else {\n this.prerelease = m[4].split('.').map((id) => {\n if (/^[0-9]+$/.test(id)) {\n const num = +id\n if (num >= 0 && num < MAX_SAFE_INTEGER) {\n return num\n }\n }\n return id\n })\n }\n\n this.build = m[5] ? m[5].split('.') : []\n this.format()\n }\n\n format () {\n this.version = `${this.major}.${this.minor}.${this.patch}`\n if (this.prerelease.length) {\n this.version += `-${this.prerelease.join('.')}`\n }\n return this.version\n }\n\n toString () {\n return this.version\n }\n\n compare (other) {\n debug('SemVer.compare', this.version, this.options, other)\n if (!(other instanceof SemVer)) {\n if (typeof other === 'string' && other === this.version) {\n return 0\n }\n other = new SemVer(other, this.options)\n }\n\n if (other.version === this.version) {\n return 0\n }\n\n return this.compareMain(other) || this.comparePre(other)\n }\n\n compareMain (other) {\n if (!(other instanceof SemVer)) {\n other = new SemVer(other, this.options)\n }\n\n return (\n compareIdentifiers(this.major, other.major) ||\n compareIdentifiers(this.minor, other.minor) ||\n compareIdentifiers(this.patch, other.patch)\n )\n }\n\n comparePre (other) {\n if (!(other instanceof SemVer)) {\n other = new SemVer(other, this.options)\n }\n\n // NOT having a prerelease is > having one\n if (this.prerelease.length && !other.prerelease.length) {\n return -1\n } else if (!this.prerelease.length && other.prerelease.length) {\n return 1\n } else if (!this.prerelease.length && !other.prerelease.length) {\n return 0\n }\n\n let i = 0\n do {\n const a = this.prerelease[i]\n const b = other.prerelease[i]\n debug('prerelease compare', i, a, b)\n if (a === undefined && b === undefined) {\n return 0\n } else if (b === undefined) {\n return 1\n } else if (a === undefined) {\n return -1\n } else if (a === b) {\n continue\n } else {\n return compareIdentifiers(a, b)\n }\n } while (++i)\n }\n\n compareBuild (other) {\n if (!(other instanceof SemVer)) {\n other = new SemVer(other, this.options)\n }\n\n let i = 0\n do {\n const a = this.build[i]\n const b = other.build[i]\n debug('prerelease compare', i, a, b)\n if (a === undefined && b === undefined) {\n return 0\n } else if (b === undefined) {\n return 1\n } else if (a === undefined) {\n return -1\n } else if (a === b) {\n continue\n } else {\n return compareIdentifiers(a, b)\n }\n } while (++i)\n }\n\n // preminor will bump the version up to the next minor release, and immediately\n // down to pre-release. premajor and prepatch work the same way.\n inc (release, identifier, identifierBase) {\n switch (release) {\n case 'premajor':\n this.prerelease.length = 0\n this.patch = 0\n this.minor = 0\n this.major++\n this.inc('pre', identifier, identifierBase)\n break\n case 'preminor':\n this.prerelease.length = 0\n this.patch = 0\n this.minor++\n this.inc('pre', identifier, identifierBase)\n break\n case 'prepatch':\n // If this is already a prerelease, it will bump to the next version\n // drop any prereleases that might already exist, since they are not\n // relevant at this point.\n this.prerelease.length = 0\n this.inc('patch', identifier, identifierBase)\n this.inc('pre', identifier, identifierBase)\n break\n // If the input is a non-prerelease version, this acts the same as\n // prepatch.\n case 'prerelease':\n if (this.prerelease.length === 0) {\n this.inc('patch', identifier, identifierBase)\n }\n this.inc('pre', identifier, identifierBase)\n break\n\n case 'major':\n // If this is a pre-major version, bump up to the same major version.\n // Otherwise increment major.\n // 1.0.0-5 bumps to 1.0.0\n // 1.1.0 bumps to 2.0.0\n if (\n this.minor !== 0 ||\n this.patch !== 0 ||\n this.prerelease.length === 0\n ) {\n this.major++\n }\n this.minor = 0\n this.patch = 0\n this.prerelease = []\n break\n case 'minor':\n // If this is a pre-minor version, bump up to the same minor version.\n // Otherwise increment minor.\n // 1.2.0-5 bumps to 1.2.0\n // 1.2.1 bumps to 1.3.0\n if (this.patch !== 0 || this.prerelease.length === 0) {\n this.minor++\n }\n this.patch = 0\n this.prerelease = []\n break\n case 'patch':\n // If this is not a pre-release version, it will increment the patch.\n // If it is a pre-release it will bump up to the same patch version.\n // 1.2.0-5 patches to 1.2.0\n // 1.2.0 patches to 1.2.1\n if (this.prerelease.length === 0) {\n this.patch++\n }\n this.prerelease = []\n break\n // This probably shouldn't be used publicly.\n // 1.0.0 'pre' would become 1.0.0-0 which is the wrong direction.\n case 'pre': {\n const base = Number(identifierBase) ? 1 : 0\n\n if (!identifier && identifierBase === false) {\n throw new Error('invalid increment argument: identifier is empty')\n }\n\n if (this.prerelease.length === 0) {\n this.prerelease = [base]\n } else {\n let i = this.prerelease.length\n while (--i >= 0) {\n if (typeof this.prerelease[i] === 'number') {\n this.prerelease[i]++\n i = -2\n }\n }\n if (i === -1) {\n // didn't increment anything\n if (identifier === this.prerelease.join('.') && identifierBase === false) {\n throw new Error('invalid increment argument: identifier already exists')\n }\n this.prerelease.push(base)\n }\n }\n if (identifier) {\n // 1.2.0-beta.1 bumps to 1.2.0-beta.2,\n // 1.2.0-beta.fooblz or 1.2.0-beta bumps to 1.2.0-beta.0\n let prerelease = [identifier, base]\n if (identifierBase === false) {\n prerelease = [identifier]\n }\n if (compareIdentifiers(this.prerelease[0], identifier) === 0) {\n if (isNaN(this.prerelease[1])) {\n this.prerelease = prerelease\n }\n } else {\n this.prerelease = prerelease\n }\n }\n break\n }\n default:\n throw new Error(`invalid increment argument: ${release}`)\n }\n this.raw = this.format()\n if (this.build.length) {\n this.raw += `+${this.build.join('.')}`\n }\n return this\n }\n}\n\nmodule.exports = SemVer\n","const SemVer = require('../classes/semver')\nconst major = (a, loose) => new SemVer(a, loose).major\nmodule.exports = major\n","const SemVer = require('../classes/semver')\nconst parse = (version, options, throwErrors = false) => {\n if (version instanceof SemVer) {\n return version\n }\n try {\n return new SemVer(version, options)\n } catch (er) {\n if (!throwErrors) {\n return null\n }\n throw er\n }\n}\n\nmodule.exports = parse\n","const parse = require('./parse')\nconst valid = (version, options) => {\n const v = parse(version, options)\n return v ? v.version : null\n}\nmodule.exports = valid\n","// Note: this is the semver.org version of the spec that it implements\n// Not necessarily the package version of this code.\nconst SEMVER_SPEC_VERSION = '2.0.0'\n\nconst MAX_LENGTH = 256\nconst MAX_SAFE_INTEGER = Number.MAX_SAFE_INTEGER ||\n/* istanbul ignore next */ 9007199254740991\n\n// Max safe segment length for coercion.\nconst MAX_SAFE_COMPONENT_LENGTH = 16\n\n// Max safe length for a build identifier. The max length minus 6 characters for\n// the shortest version with a build 0.0.0+BUILD.\nconst MAX_SAFE_BUILD_LENGTH = MAX_LENGTH - 6\n\nconst RELEASE_TYPES = [\n 'major',\n 'premajor',\n 'minor',\n 'preminor',\n 'patch',\n 'prepatch',\n 'prerelease',\n]\n\nmodule.exports = {\n MAX_LENGTH,\n MAX_SAFE_COMPONENT_LENGTH,\n MAX_SAFE_BUILD_LENGTH,\n MAX_SAFE_INTEGER,\n RELEASE_TYPES,\n SEMVER_SPEC_VERSION,\n FLAG_INCLUDE_PRERELEASE: 0b001,\n FLAG_LOOSE: 0b010,\n}\n","const debug = (\n typeof process === 'object' &&\n process.env &&\n process.env.NODE_DEBUG &&\n /\\bsemver\\b/i.test(process.env.NODE_DEBUG)\n) ? (...args) => console.error('SEMVER', ...args)\n : () => {}\n\nmodule.exports = debug\n","const numeric = /^[0-9]+$/\nconst compareIdentifiers = (a, b) => {\n const anum = numeric.test(a)\n const bnum = numeric.test(b)\n\n if (anum && bnum) {\n a = +a\n b = +b\n }\n\n return a === b ? 0\n : (anum && !bnum) ? -1\n : (bnum && !anum) ? 1\n : a < b ? -1\n : 1\n}\n\nconst rcompareIdentifiers = (a, b) => compareIdentifiers(b, a)\n\nmodule.exports = {\n compareIdentifiers,\n rcompareIdentifiers,\n}\n","// parse out just the options we care about\nconst looseOption = Object.freeze({ loose: true })\nconst emptyOpts = Object.freeze({ })\nconst parseOptions = options => {\n if (!options) {\n return emptyOpts\n }\n\n if (typeof options !== 'object') {\n return looseOption\n }\n\n return options\n}\nmodule.exports = parseOptions\n","const {\n MAX_SAFE_COMPONENT_LENGTH,\n MAX_SAFE_BUILD_LENGTH,\n MAX_LENGTH,\n} = require('./constants')\nconst debug = require('./debug')\nexports = module.exports = {}\n\n// The actual regexps go on exports.re\nconst re = exports.re = []\nconst safeRe = exports.safeRe = []\nconst src = exports.src = []\nconst t = exports.t = {}\nlet R = 0\n\nconst LETTERDASHNUMBER = '[a-zA-Z0-9-]'\n\n// Replace some greedy regex tokens to prevent regex dos issues. These regex are\n// used internally via the safeRe object since all inputs in this library get\n// normalized first to trim and collapse all extra whitespace. The original\n// regexes are exported for userland consumption and lower level usage. A\n// future breaking change could export the safer regex only with a note that\n// all input should have extra whitespace removed.\nconst safeRegexReplacements = [\n ['\\\\s', 1],\n ['\\\\d', MAX_LENGTH],\n [LETTERDASHNUMBER, MAX_SAFE_BUILD_LENGTH],\n]\n\nconst makeSafeRegex = (value) => {\n for (const [token, max] of safeRegexReplacements) {\n value = value\n .split(`${token}*`).join(`${token}{0,${max}}`)\n .split(`${token}+`).join(`${token}{1,${max}}`)\n }\n return value\n}\n\nconst createToken = (name, value, isGlobal) => {\n const safe = makeSafeRegex(value)\n const index = R++\n debug(name, index, value)\n t[name] = index\n src[index] = value\n re[index] = new RegExp(value, isGlobal ? 'g' : undefined)\n safeRe[index] = new RegExp(safe, isGlobal ? 'g' : undefined)\n}\n\n// The following Regular Expressions can be used for tokenizing,\n// validating, and parsing SemVer version strings.\n\n// ## Numeric Identifier\n// A single `0`, or a non-zero digit followed by zero or more digits.\n\ncreateToken('NUMERICIDENTIFIER', '0|[1-9]\\\\d*')\ncreateToken('NUMERICIDENTIFIERLOOSE', '\\\\d+')\n\n// ## Non-numeric Identifier\n// Zero or more digits, followed by a letter or hyphen, and then zero or\n// more letters, digits, or hyphens.\n\ncreateToken('NONNUMERICIDENTIFIER', `\\\\d*[a-zA-Z-]${LETTERDASHNUMBER}*`)\n\n// ## Main Version\n// Three dot-separated numeric identifiers.\n\ncreateToken('MAINVERSION', `(${src[t.NUMERICIDENTIFIER]})\\\\.` +\n `(${src[t.NUMERICIDENTIFIER]})\\\\.` +\n `(${src[t.NUMERICIDENTIFIER]})`)\n\ncreateToken('MAINVERSIONLOOSE', `(${src[t.NUMERICIDENTIFIERLOOSE]})\\\\.` +\n `(${src[t.NUMERICIDENTIFIERLOOSE]})\\\\.` +\n `(${src[t.NUMERICIDENTIFIERLOOSE]})`)\n\n// ## Pre-release Version Identifier\n// A numeric identifier, or a non-numeric identifier.\n\ncreateToken('PRERELEASEIDENTIFIER', `(?:${src[t.NUMERICIDENTIFIER]\n}|${src[t.NONNUMERICIDENTIFIER]})`)\n\ncreateToken('PRERELEASEIDENTIFIERLOOSE', `(?:${src[t.NUMERICIDENTIFIERLOOSE]\n}|${src[t.NONNUMERICIDENTIFIER]})`)\n\n// ## Pre-release Version\n// Hyphen, followed by one or more dot-separated pre-release version\n// identifiers.\n\ncreateToken('PRERELEASE', `(?:-(${src[t.PRERELEASEIDENTIFIER]\n}(?:\\\\.${src[t.PRERELEASEIDENTIFIER]})*))`)\n\ncreateToken('PRERELEASELOOSE', `(?:-?(${src[t.PRERELEASEIDENTIFIERLOOSE]\n}(?:\\\\.${src[t.PRERELEASEIDENTIFIERLOOSE]})*))`)\n\n// ## Build Metadata Identifier\n// Any combination of digits, letters, or hyphens.\n\ncreateToken('BUILDIDENTIFIER', `${LETTERDASHNUMBER}+`)\n\n// ## Build Metadata\n// Plus sign, followed by one or more period-separated build metadata\n// identifiers.\n\ncreateToken('BUILD', `(?:\\\\+(${src[t.BUILDIDENTIFIER]\n}(?:\\\\.${src[t.BUILDIDENTIFIER]})*))`)\n\n// ## Full Version String\n// A main version, followed optionally by a pre-release version and\n// build metadata.\n\n// Note that the only major, minor, patch, and pre-release sections of\n// the version string are capturing groups. The build metadata is not a\n// capturing group, because it should not ever be used in version\n// comparison.\n\ncreateToken('FULLPLAIN', `v?${src[t.MAINVERSION]\n}${src[t.PRERELEASE]}?${\n src[t.BUILD]}?`)\n\ncreateToken('FULL', `^${src[t.FULLPLAIN]}$`)\n\n// like full, but allows v1.2.3 and =1.2.3, which people do sometimes.\n// also, 1.0.0alpha1 (prerelease without the hyphen) which is pretty\n// common in the npm registry.\ncreateToken('LOOSEPLAIN', `[v=\\\\s]*${src[t.MAINVERSIONLOOSE]\n}${src[t.PRERELEASELOOSE]}?${\n src[t.BUILD]}?`)\n\ncreateToken('LOOSE', `^${src[t.LOOSEPLAIN]}$`)\n\ncreateToken('GTLT', '((?:<|>)?=?)')\n\n// Something like \"2.*\" or \"1.2.x\".\n// Note that \"x.x\" is a valid xRange identifer, meaning \"any version\"\n// Only the first item is strictly required.\ncreateToken('XRANGEIDENTIFIERLOOSE', `${src[t.NUMERICIDENTIFIERLOOSE]}|x|X|\\\\*`)\ncreateToken('XRANGEIDENTIFIER', `${src[t.NUMERICIDENTIFIER]}|x|X|\\\\*`)\n\ncreateToken('XRANGEPLAIN', `[v=\\\\s]*(${src[t.XRANGEIDENTIFIER]})` +\n `(?:\\\\.(${src[t.XRANGEIDENTIFIER]})` +\n `(?:\\\\.(${src[t.XRANGEIDENTIFIER]})` +\n `(?:${src[t.PRERELEASE]})?${\n src[t.BUILD]}?` +\n `)?)?`)\n\ncreateToken('XRANGEPLAINLOOSE', `[v=\\\\s]*(${src[t.XRANGEIDENTIFIERLOOSE]})` +\n `(?:\\\\.(${src[t.XRANGEIDENTIFIERLOOSE]})` +\n `(?:\\\\.(${src[t.XRANGEIDENTIFIERLOOSE]})` +\n `(?:${src[t.PRERELEASELOOSE]})?${\n src[t.BUILD]}?` +\n `)?)?`)\n\ncreateToken('XRANGE', `^${src[t.GTLT]}\\\\s*${src[t.XRANGEPLAIN]}$`)\ncreateToken('XRANGELOOSE', `^${src[t.GTLT]}\\\\s*${src[t.XRANGEPLAINLOOSE]}$`)\n\n// Coercion.\n// Extract anything that could conceivably be a part of a valid semver\ncreateToken('COERCE', `${'(^|[^\\\\d])' +\n '(\\\\d{1,'}${MAX_SAFE_COMPONENT_LENGTH}})` +\n `(?:\\\\.(\\\\d{1,${MAX_SAFE_COMPONENT_LENGTH}}))?` +\n `(?:\\\\.(\\\\d{1,${MAX_SAFE_COMPONENT_LENGTH}}))?` +\n `(?:$|[^\\\\d])`)\ncreateToken('COERCERTL', src[t.COERCE], true)\n\n// Tilde ranges.\n// Meaning is \"reasonably at or greater than\"\ncreateToken('LONETILDE', '(?:~>?)')\n\ncreateToken('TILDETRIM', `(\\\\s*)${src[t.LONETILDE]}\\\\s+`, true)\nexports.tildeTrimReplace = '$1~'\n\ncreateToken('TILDE', `^${src[t.LONETILDE]}${src[t.XRANGEPLAIN]}$`)\ncreateToken('TILDELOOSE', `^${src[t.LONETILDE]}${src[t.XRANGEPLAINLOOSE]}$`)\n\n// Caret ranges.\n// Meaning is \"at least and backwards compatible with\"\ncreateToken('LONECARET', '(?:\\\\^)')\n\ncreateToken('CARETTRIM', `(\\\\s*)${src[t.LONECARET]}\\\\s+`, true)\nexports.caretTrimReplace = '$1^'\n\ncreateToken('CARET', `^${src[t.LONECARET]}${src[t.XRANGEPLAIN]}$`)\ncreateToken('CARETLOOSE', `^${src[t.LONECARET]}${src[t.XRANGEPLAINLOOSE]}$`)\n\n// A simple gt/lt/eq thing, or just \"\" to indicate \"any version\"\ncreateToken('COMPARATORLOOSE', `^${src[t.GTLT]}\\\\s*(${src[t.LOOSEPLAIN]})$|^$`)\ncreateToken('COMPARATOR', `^${src[t.GTLT]}\\\\s*(${src[t.FULLPLAIN]})$|^$`)\n\n// An expression to strip any whitespace between the gtlt and the thing\n// it modifies, so that `> 1.2.3` ==> `>1.2.3`\ncreateToken('COMPARATORTRIM', `(\\\\s*)${src[t.GTLT]\n}\\\\s*(${src[t.LOOSEPLAIN]}|${src[t.XRANGEPLAIN]})`, true)\nexports.comparatorTrimReplace = '$1$2$3'\n\n// Something like `1.2.3 - 1.2.4`\n// Note that these all use the loose form, because they'll be\n// checked against either the strict or loose comparator form\n// later.\ncreateToken('HYPHENRANGE', `^\\\\s*(${src[t.XRANGEPLAIN]})` +\n `\\\\s+-\\\\s+` +\n `(${src[t.XRANGEPLAIN]})` +\n `\\\\s*$`)\n\ncreateToken('HYPHENRANGELOOSE', `^\\\\s*(${src[t.XRANGEPLAINLOOSE]})` +\n `\\\\s+-\\\\s+` +\n `(${src[t.XRANGEPLAINLOOSE]})` +\n `\\\\s*$`)\n\n// Star ranges basically just allow anything at all.\ncreateToken('STAR', '(<|>)?=?\\\\s*\\\\*')\n// >=0.0.0 is like a star\ncreateToken('GTE0', '^\\\\s*>=\\\\s*0\\\\.0\\\\.0\\\\s*$')\ncreateToken('GTE0PRE', '^\\\\s*>=\\\\s*0\\\\.0\\\\.0-0\\\\s*$')\n","// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n\nmodule.exports = Stream;\n\nvar EE = require('events').EventEmitter;\nvar inherits = require('inherits');\n\ninherits(Stream, EE);\nStream.Readable = require('readable-stream/lib/_stream_readable.js');\nStream.Writable = require('readable-stream/lib/_stream_writable.js');\nStream.Duplex = require('readable-stream/lib/_stream_duplex.js');\nStream.Transform = require('readable-stream/lib/_stream_transform.js');\nStream.PassThrough = require('readable-stream/lib/_stream_passthrough.js');\nStream.finished = require('readable-stream/lib/internal/streams/end-of-stream.js')\nStream.pipeline = require('readable-stream/lib/internal/streams/pipeline.js')\n\n// Backwards-compat with node 0.4.x\nStream.Stream = Stream;\n\n\n\n// old-style streams. Note that the pipe method (the only relevant\n// part of this class) is overridden in the Readable class.\n\nfunction Stream() {\n EE.call(this);\n}\n\nStream.prototype.pipe = function(dest, options) {\n var source = this;\n\n function ondata(chunk) {\n if (dest.writable) {\n if (false === dest.write(chunk) && source.pause) {\n source.pause();\n }\n }\n }\n\n source.on('data', ondata);\n\n function ondrain() {\n if (source.readable && source.resume) {\n source.resume();\n }\n }\n\n dest.on('drain', ondrain);\n\n // If the 'end' option is not supplied, dest.end() will be called when\n // source gets the 'end' or 'close' events. Only dest.end() once.\n if (!dest._isStdio && (!options || options.end !== false)) {\n source.on('end', onend);\n source.on('close', onclose);\n }\n\n var didOnEnd = false;\n function onend() {\n if (didOnEnd) return;\n didOnEnd = true;\n\n dest.end();\n }\n\n\n function onclose() {\n if (didOnEnd) return;\n didOnEnd = true;\n\n if (typeof dest.destroy === 'function') dest.destroy();\n }\n\n // don't leave dangling pipes when there are errors.\n function onerror(er) {\n cleanup();\n if (EE.listenerCount(this, 'error') === 0) {\n throw er; // Unhandled stream error in pipe.\n }\n }\n\n source.on('error', onerror);\n dest.on('error', onerror);\n\n // remove all the event listeners that were added.\n function cleanup() {\n source.removeListener('data', ondata);\n dest.removeListener('drain', ondrain);\n\n source.removeListener('end', onend);\n source.removeListener('close', onclose);\n\n source.removeListener('error', onerror);\n dest.removeListener('error', onerror);\n\n source.removeListener('end', cleanup);\n source.removeListener('close', cleanup);\n\n dest.removeListener('close', cleanup);\n }\n\n source.on('end', cleanup);\n source.on('close', cleanup);\n\n dest.on('close', cleanup);\n\n dest.emit('pipe', source);\n\n // Allow for unix-like usage: A.pipe(B).pipe(C)\n return dest;\n};\n","var ClientRequest = require('./lib/request')\nvar response = require('./lib/response')\nvar extend = require('xtend')\nvar statusCodes = require('builtin-status-codes')\nvar url = require('url')\n\nvar http = exports\n\nhttp.request = function (opts, cb) {\n\tif (typeof opts === 'string')\n\t\topts = url.parse(opts)\n\telse\n\t\topts = extend(opts)\n\n\t// Normally, the page is loaded from http or https, so not specifying a protocol\n\t// will result in a (valid) protocol-relative url. However, this won't work if\n\t// the protocol is something else, like 'file:'\n\tvar defaultProtocol = global.location.protocol.search(/^https?:$/) === -1 ? 'http:' : ''\n\n\tvar protocol = opts.protocol || defaultProtocol\n\tvar host = opts.hostname || opts.host\n\tvar port = opts.port\n\tvar path = opts.path || '/'\n\n\t// Necessary for IPv6 addresses\n\tif (host && host.indexOf(':') !== -1)\n\t\thost = '[' + host + ']'\n\n\t// This may be a relative url. The browser should always be able to interpret it correctly.\n\topts.url = (host ? (protocol + '//' + host) : '') + (port ? ':' + port : '') + path\n\topts.method = (opts.method || 'GET').toUpperCase()\n\topts.headers = opts.headers || {}\n\n\t// Also valid opts.auth, opts.mode\n\n\tvar req = new ClientRequest(opts)\n\tif (cb)\n\t\treq.on('response', cb)\n\treturn req\n}\n\nhttp.get = function get (opts, cb) {\n\tvar req = http.request(opts, cb)\n\treq.end()\n\treturn req\n}\n\nhttp.ClientRequest = ClientRequest\nhttp.IncomingMessage = response.IncomingMessage\n\nhttp.Agent = function () {}\nhttp.Agent.defaultMaxSockets = 4\n\nhttp.globalAgent = new http.Agent()\n\nhttp.STATUS_CODES = statusCodes\n\nhttp.METHODS = [\n\t'CHECKOUT',\n\t'CONNECT',\n\t'COPY',\n\t'DELETE',\n\t'GET',\n\t'HEAD',\n\t'LOCK',\n\t'M-SEARCH',\n\t'MERGE',\n\t'MKACTIVITY',\n\t'MKCOL',\n\t'MOVE',\n\t'NOTIFY',\n\t'OPTIONS',\n\t'PATCH',\n\t'POST',\n\t'PROPFIND',\n\t'PROPPATCH',\n\t'PURGE',\n\t'PUT',\n\t'REPORT',\n\t'SEARCH',\n\t'SUBSCRIBE',\n\t'TRACE',\n\t'UNLOCK',\n\t'UNSUBSCRIBE'\n]","exports.fetch = isFunction(global.fetch) && isFunction(global.ReadableStream)\n\nexports.writableStream = isFunction(global.WritableStream)\n\nexports.abortController = isFunction(global.AbortController)\n\n// The xhr request to example.com may violate some restrictive CSP configurations,\n// so if we're running in a browser that supports `fetch`, avoid calling getXHR()\n// and assume support for certain features below.\nvar xhr\nfunction getXHR () {\n\t// Cache the xhr value\n\tif (xhr !== undefined) return xhr\n\n\tif (global.XMLHttpRequest) {\n\t\txhr = new global.XMLHttpRequest()\n\t\t// If XDomainRequest is available (ie only, where xhr might not work\n\t\t// cross domain), use the page location. Otherwise use example.com\n\t\t// Note: this doesn't actually make an http request.\n\t\ttry {\n\t\t\txhr.open('GET', global.XDomainRequest ? '/' : 'https://example.com')\n\t\t} catch(e) {\n\t\t\txhr = null\n\t\t}\n\t} else {\n\t\t// Service workers don't have XHR\n\t\txhr = null\n\t}\n\treturn xhr\n}\n\nfunction checkTypeSupport (type) {\n\tvar xhr = getXHR()\n\tif (!xhr) return false\n\ttry {\n\t\txhr.responseType = type\n\t\treturn xhr.responseType === type\n\t} catch (e) {}\n\treturn false\n}\n\n// If fetch is supported, then arraybuffer will be supported too. Skip calling\n// checkTypeSupport(), since that calls getXHR().\nexports.arraybuffer = exports.fetch || checkTypeSupport('arraybuffer')\n\n// These next two tests unavoidably show warnings in Chrome. Since fetch will always\n// be used if it's available, just return false for these to avoid the warnings.\nexports.msstream = !exports.fetch && checkTypeSupport('ms-stream')\nexports.mozchunkedarraybuffer = !exports.fetch && checkTypeSupport('moz-chunked-arraybuffer')\n\n// If fetch is supported, then overrideMimeType will be supported too. Skip calling\n// getXHR().\nexports.overrideMimeType = exports.fetch || (getXHR() ? isFunction(getXHR().overrideMimeType) : false)\n\nfunction isFunction (value) {\n\treturn typeof value === 'function'\n}\n\nxhr = null // Help gc\n","var capability = require('./capability')\nvar inherits = require('inherits')\nvar response = require('./response')\nvar stream = require('readable-stream')\n\nvar IncomingMessage = response.IncomingMessage\nvar rStates = response.readyStates\n\nfunction decideMode (preferBinary, useFetch) {\n\tif (capability.fetch && useFetch) {\n\t\treturn 'fetch'\n\t} else if (capability.mozchunkedarraybuffer) {\n\t\treturn 'moz-chunked-arraybuffer'\n\t} else if (capability.msstream) {\n\t\treturn 'ms-stream'\n\t} else if (capability.arraybuffer && preferBinary) {\n\t\treturn 'arraybuffer'\n\t} else {\n\t\treturn 'text'\n\t}\n}\n\nvar ClientRequest = module.exports = function (opts) {\n\tvar self = this\n\tstream.Writable.call(self)\n\n\tself._opts = opts\n\tself._body = []\n\tself._headers = {}\n\tif (opts.auth)\n\t\tself.setHeader('Authorization', 'Basic ' + Buffer.from(opts.auth).toString('base64'))\n\tObject.keys(opts.headers).forEach(function (name) {\n\t\tself.setHeader(name, opts.headers[name])\n\t})\n\n\tvar preferBinary\n\tvar useFetch = true\n\tif (opts.mode === 'disable-fetch' || ('requestTimeout' in opts && !capability.abortController)) {\n\t\t// If the use of XHR should be preferred. Not typically needed.\n\t\tuseFetch = false\n\t\tpreferBinary = true\n\t} else if (opts.mode === 'prefer-streaming') {\n\t\t// If streaming is a high priority but binary compatibility and\n\t\t// the accuracy of the 'content-type' header aren't\n\t\tpreferBinary = false\n\t} else if (opts.mode === 'allow-wrong-content-type') {\n\t\t// If streaming is more important than preserving the 'content-type' header\n\t\tpreferBinary = !capability.overrideMimeType\n\t} else if (!opts.mode || opts.mode === 'default' || opts.mode === 'prefer-fast') {\n\t\t// Use binary if text streaming may corrupt data or the content-type header, or for speed\n\t\tpreferBinary = true\n\t} else {\n\t\tthrow new Error('Invalid value for opts.mode')\n\t}\n\tself._mode = decideMode(preferBinary, useFetch)\n\tself._fetchTimer = null\n\tself._socketTimeout = null\n\tself._socketTimer = null\n\n\tself.on('finish', function () {\n\t\tself._onFinish()\n\t})\n}\n\ninherits(ClientRequest, stream.Writable)\n\nClientRequest.prototype.setHeader = function (name, value) {\n\tvar self = this\n\tvar lowerName = name.toLowerCase()\n\t// This check is not necessary, but it prevents warnings from browsers about setting unsafe\n\t// headers. To be honest I'm not entirely sure hiding these warnings is a good thing, but\n\t// http-browserify did it, so I will too.\n\tif (unsafeHeaders.indexOf(lowerName) !== -1)\n\t\treturn\n\n\tself._headers[lowerName] = {\n\t\tname: name,\n\t\tvalue: value\n\t}\n}\n\nClientRequest.prototype.getHeader = function (name) {\n\tvar header = this._headers[name.toLowerCase()]\n\tif (header)\n\t\treturn header.value\n\treturn null\n}\n\nClientRequest.prototype.removeHeader = function (name) {\n\tvar self = this\n\tdelete self._headers[name.toLowerCase()]\n}\n\nClientRequest.prototype._onFinish = function () {\n\tvar self = this\n\n\tif (self._destroyed)\n\t\treturn\n\tvar opts = self._opts\n\n\tif ('timeout' in opts && opts.timeout !== 0) {\n\t\tself.setTimeout(opts.timeout)\n\t}\n\n\tvar headersObj = self._headers\n\tvar body = null\n\tif (opts.method !== 'GET' && opts.method !== 'HEAD') {\n body = new Blob(self._body, {\n type: (headersObj['content-type'] || {}).value || ''\n });\n }\n\n\t// create flattened list of headers\n\tvar headersList = []\n\tObject.keys(headersObj).forEach(function (keyName) {\n\t\tvar name = headersObj[keyName].name\n\t\tvar value = headersObj[keyName].value\n\t\tif (Array.isArray(value)) {\n\t\t\tvalue.forEach(function (v) {\n\t\t\t\theadersList.push([name, v])\n\t\t\t})\n\t\t} else {\n\t\t\theadersList.push([name, value])\n\t\t}\n\t})\n\n\tif (self._mode === 'fetch') {\n\t\tvar signal = null\n\t\tif (capability.abortController) {\n\t\t\tvar controller = new AbortController()\n\t\t\tsignal = controller.signal\n\t\t\tself._fetchAbortController = controller\n\n\t\t\tif ('requestTimeout' in opts && opts.requestTimeout !== 0) {\n\t\t\t\tself._fetchTimer = global.setTimeout(function () {\n\t\t\t\t\tself.emit('requestTimeout')\n\t\t\t\t\tif (self._fetchAbortController)\n\t\t\t\t\t\tself._fetchAbortController.abort()\n\t\t\t\t}, opts.requestTimeout)\n\t\t\t}\n\t\t}\n\n\t\tglobal.fetch(self._opts.url, {\n\t\t\tmethod: self._opts.method,\n\t\t\theaders: headersList,\n\t\t\tbody: body || undefined,\n\t\t\tmode: 'cors',\n\t\t\tcredentials: opts.withCredentials ? 'include' : 'same-origin',\n\t\t\tsignal: signal\n\t\t}).then(function (response) {\n\t\t\tself._fetchResponse = response\n\t\t\tself._resetTimers(false)\n\t\t\tself._connect()\n\t\t}, function (reason) {\n\t\t\tself._resetTimers(true)\n\t\t\tif (!self._destroyed)\n\t\t\t\tself.emit('error', reason)\n\t\t})\n\t} else {\n\t\tvar xhr = self._xhr = new global.XMLHttpRequest()\n\t\ttry {\n\t\t\txhr.open(self._opts.method, self._opts.url, true)\n\t\t} catch (err) {\n\t\t\tprocess.nextTick(function () {\n\t\t\t\tself.emit('error', err)\n\t\t\t})\n\t\t\treturn\n\t\t}\n\n\t\t// Can't set responseType on really old browsers\n\t\tif ('responseType' in xhr)\n\t\t\txhr.responseType = self._mode\n\n\t\tif ('withCredentials' in xhr)\n\t\t\txhr.withCredentials = !!opts.withCredentials\n\n\t\tif (self._mode === 'text' && 'overrideMimeType' in xhr)\n\t\t\txhr.overrideMimeType('text/plain; charset=x-user-defined')\n\n\t\tif ('requestTimeout' in opts) {\n\t\t\txhr.timeout = opts.requestTimeout\n\t\t\txhr.ontimeout = function () {\n\t\t\t\tself.emit('requestTimeout')\n\t\t\t}\n\t\t}\n\n\t\theadersList.forEach(function (header) {\n\t\t\txhr.setRequestHeader(header[0], header[1])\n\t\t})\n\n\t\tself._response = null\n\t\txhr.onreadystatechange = function () {\n\t\t\tswitch (xhr.readyState) {\n\t\t\t\tcase rStates.LOADING:\n\t\t\t\tcase rStates.DONE:\n\t\t\t\t\tself._onXHRProgress()\n\t\t\t\t\tbreak\n\t\t\t}\n\t\t}\n\t\t// Necessary for streaming in Firefox, since xhr.response is ONLY defined\n\t\t// in onprogress, not in onreadystatechange with xhr.readyState = 3\n\t\tif (self._mode === 'moz-chunked-arraybuffer') {\n\t\t\txhr.onprogress = function () {\n\t\t\t\tself._onXHRProgress()\n\t\t\t}\n\t\t}\n\n\t\txhr.onerror = function () {\n\t\t\tif (self._destroyed)\n\t\t\t\treturn\n\t\t\tself._resetTimers(true)\n\t\t\tself.emit('error', new Error('XHR error'))\n\t\t}\n\n\t\ttry {\n\t\t\txhr.send(body)\n\t\t} catch (err) {\n\t\t\tprocess.nextTick(function () {\n\t\t\t\tself.emit('error', err)\n\t\t\t})\n\t\t\treturn\n\t\t}\n\t}\n}\n\n/**\n * Checks if xhr.status is readable and non-zero, indicating no error.\n * Even though the spec says it should be available in readyState 3,\n * accessing it throws an exception in IE8\n */\nfunction statusValid (xhr) {\n\ttry {\n\t\tvar status = xhr.status\n\t\treturn (status !== null && status !== 0)\n\t} catch (e) {\n\t\treturn false\n\t}\n}\n\nClientRequest.prototype._onXHRProgress = function () {\n\tvar self = this\n\n\tself._resetTimers(false)\n\n\tif (!statusValid(self._xhr) || self._destroyed)\n\t\treturn\n\n\tif (!self._response)\n\t\tself._connect()\n\n\tself._response._onXHRProgress(self._resetTimers.bind(self))\n}\n\nClientRequest.prototype._connect = function () {\n\tvar self = this\n\n\tif (self._destroyed)\n\t\treturn\n\n\tself._response = new IncomingMessage(self._xhr, self._fetchResponse, self._mode, self._resetTimers.bind(self))\n\tself._response.on('error', function(err) {\n\t\tself.emit('error', err)\n\t})\n\n\tself.emit('response', self._response)\n}\n\nClientRequest.prototype._write = function (chunk, encoding, cb) {\n\tvar self = this\n\n\tself._body.push(chunk)\n\tcb()\n}\n\nClientRequest.prototype._resetTimers = function (done) {\n\tvar self = this\n\n\tglobal.clearTimeout(self._socketTimer)\n\tself._socketTimer = null\n\n\tif (done) {\n\t\tglobal.clearTimeout(self._fetchTimer)\n\t\tself._fetchTimer = null\n\t} else if (self._socketTimeout) {\n\t\tself._socketTimer = global.setTimeout(function () {\n\t\t\tself.emit('timeout')\n\t\t}, self._socketTimeout)\n\t}\n}\n\nClientRequest.prototype.abort = ClientRequest.prototype.destroy = function (err) {\n\tvar self = this\n\tself._destroyed = true\n\tself._resetTimers(true)\n\tif (self._response)\n\t\tself._response._destroyed = true\n\tif (self._xhr)\n\t\tself._xhr.abort()\n\telse if (self._fetchAbortController)\n\t\tself._fetchAbortController.abort()\n\n\tif (err)\n\t\tself.emit('error', err)\n}\n\nClientRequest.prototype.end = function (data, encoding, cb) {\n\tvar self = this\n\tif (typeof data === 'function') {\n\t\tcb = data\n\t\tdata = undefined\n\t}\n\n\tstream.Writable.prototype.end.call(self, data, encoding, cb)\n}\n\nClientRequest.prototype.setTimeout = function (timeout, cb) {\n\tvar self = this\n\n\tif (cb)\n\t\tself.once('timeout', cb)\n\n\tself._socketTimeout = timeout\n\tself._resetTimers(false)\n}\n\nClientRequest.prototype.flushHeaders = function () {}\nClientRequest.prototype.setNoDelay = function () {}\nClientRequest.prototype.setSocketKeepAlive = function () {}\n\n// Taken from http://www.w3.org/TR/XMLHttpRequest/#the-setrequestheader%28%29-method\nvar unsafeHeaders = [\n\t'accept-charset',\n\t'accept-encoding',\n\t'access-control-request-headers',\n\t'access-control-request-method',\n\t'connection',\n\t'content-length',\n\t'cookie',\n\t'cookie2',\n\t'date',\n\t'dnt',\n\t'expect',\n\t'host',\n\t'keep-alive',\n\t'origin',\n\t'referer',\n\t'te',\n\t'trailer',\n\t'transfer-encoding',\n\t'upgrade',\n\t'via'\n]\n","var capability = require('./capability')\nvar inherits = require('inherits')\nvar stream = require('readable-stream')\n\nvar rStates = exports.readyStates = {\n\tUNSENT: 0,\n\tOPENED: 1,\n\tHEADERS_RECEIVED: 2,\n\tLOADING: 3,\n\tDONE: 4\n}\n\nvar IncomingMessage = exports.IncomingMessage = function (xhr, response, mode, resetTimers) {\n\tvar self = this\n\tstream.Readable.call(self)\n\n\tself._mode = mode\n\tself.headers = {}\n\tself.rawHeaders = []\n\tself.trailers = {}\n\tself.rawTrailers = []\n\n\t// Fake the 'close' event, but only once 'end' fires\n\tself.on('end', function () {\n\t\t// The nextTick is necessary to prevent the 'request' module from causing an infinite loop\n\t\tprocess.nextTick(function () {\n\t\t\tself.emit('close')\n\t\t})\n\t})\n\n\tif (mode === 'fetch') {\n\t\tself._fetchResponse = response\n\n\t\tself.url = response.url\n\t\tself.statusCode = response.status\n\t\tself.statusMessage = response.statusText\n\t\t\n\t\tresponse.headers.forEach(function (header, key){\n\t\t\tself.headers[key.toLowerCase()] = header\n\t\t\tself.rawHeaders.push(key, header)\n\t\t})\n\n\t\tif (capability.writableStream) {\n\t\t\tvar writable = new WritableStream({\n\t\t\t\twrite: function (chunk) {\n\t\t\t\t\tresetTimers(false)\n\t\t\t\t\treturn new Promise(function (resolve, reject) {\n\t\t\t\t\t\tif (self._destroyed) {\n\t\t\t\t\t\t\treject()\n\t\t\t\t\t\t} else if(self.push(Buffer.from(chunk))) {\n\t\t\t\t\t\t\tresolve()\n\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\tself._resumeFetch = resolve\n\t\t\t\t\t\t}\n\t\t\t\t\t})\n\t\t\t\t},\n\t\t\t\tclose: function () {\n\t\t\t\t\tresetTimers(true)\n\t\t\t\t\tif (!self._destroyed)\n\t\t\t\t\t\tself.push(null)\n\t\t\t\t},\n\t\t\t\tabort: function (err) {\n\t\t\t\t\tresetTimers(true)\n\t\t\t\t\tif (!self._destroyed)\n\t\t\t\t\t\tself.emit('error', err)\n\t\t\t\t}\n\t\t\t})\n\n\t\t\ttry {\n\t\t\t\tresponse.body.pipeTo(writable).catch(function (err) {\n\t\t\t\t\tresetTimers(true)\n\t\t\t\t\tif (!self._destroyed)\n\t\t\t\t\t\tself.emit('error', err)\n\t\t\t\t})\n\t\t\t\treturn\n\t\t\t} catch (e) {} // pipeTo method isn't defined. Can't find a better way to feature test this\n\t\t}\n\t\t// fallback for when writableStream or pipeTo aren't available\n\t\tvar reader = response.body.getReader()\n\t\tfunction read () {\n\t\t\treader.read().then(function (result) {\n\t\t\t\tif (self._destroyed)\n\t\t\t\t\treturn\n\t\t\t\tresetTimers(result.done)\n\t\t\t\tif (result.done) {\n\t\t\t\t\tself.push(null)\n\t\t\t\t\treturn\n\t\t\t\t}\n\t\t\t\tself.push(Buffer.from(result.value))\n\t\t\t\tread()\n\t\t\t}).catch(function (err) {\n\t\t\t\tresetTimers(true)\n\t\t\t\tif (!self._destroyed)\n\t\t\t\t\tself.emit('error', err)\n\t\t\t})\n\t\t}\n\t\tread()\n\t} else {\n\t\tself._xhr = xhr\n\t\tself._pos = 0\n\n\t\tself.url = xhr.responseURL\n\t\tself.statusCode = xhr.status\n\t\tself.statusMessage = xhr.statusText\n\t\tvar headers = xhr.getAllResponseHeaders().split(/\\r?\\n/)\n\t\theaders.forEach(function (header) {\n\t\t\tvar matches = header.match(/^([^:]+):\\s*(.*)/)\n\t\t\tif (matches) {\n\t\t\t\tvar key = matches[1].toLowerCase()\n\t\t\t\tif (key === 'set-cookie') {\n\t\t\t\t\tif (self.headers[key] === undefined) {\n\t\t\t\t\t\tself.headers[key] = []\n\t\t\t\t\t}\n\t\t\t\t\tself.headers[key].push(matches[2])\n\t\t\t\t} else if (self.headers[key] !== undefined) {\n\t\t\t\t\tself.headers[key] += ', ' + matches[2]\n\t\t\t\t} else {\n\t\t\t\t\tself.headers[key] = matches[2]\n\t\t\t\t}\n\t\t\t\tself.rawHeaders.push(matches[1], matches[2])\n\t\t\t}\n\t\t})\n\n\t\tself._charset = 'x-user-defined'\n\t\tif (!capability.overrideMimeType) {\n\t\t\tvar mimeType = self.rawHeaders['mime-type']\n\t\t\tif (mimeType) {\n\t\t\t\tvar charsetMatch = mimeType.match(/;\\s*charset=([^;])(;|$)/)\n\t\t\t\tif (charsetMatch) {\n\t\t\t\t\tself._charset = charsetMatch[1].toLowerCase()\n\t\t\t\t}\n\t\t\t}\n\t\t\tif (!self._charset)\n\t\t\t\tself._charset = 'utf-8' // best guess\n\t\t}\n\t}\n}\n\ninherits(IncomingMessage, stream.Readable)\n\nIncomingMessage.prototype._read = function () {\n\tvar self = this\n\n\tvar resolve = self._resumeFetch\n\tif (resolve) {\n\t\tself._resumeFetch = null\n\t\tresolve()\n\t}\n}\n\nIncomingMessage.prototype._onXHRProgress = function (resetTimers) {\n\tvar self = this\n\n\tvar xhr = self._xhr\n\n\tvar response = null\n\tswitch (self._mode) {\n\t\tcase 'text':\n\t\t\tresponse = xhr.responseText\n\t\t\tif (response.length > self._pos) {\n\t\t\t\tvar newData = response.substr(self._pos)\n\t\t\t\tif (self._charset === 'x-user-defined') {\n\t\t\t\t\tvar buffer = Buffer.alloc(newData.length)\n\t\t\t\t\tfor (var i = 0; i < newData.length; i++)\n\t\t\t\t\t\tbuffer[i] = newData.charCodeAt(i) & 0xff\n\n\t\t\t\t\tself.push(buffer)\n\t\t\t\t} else {\n\t\t\t\t\tself.push(newData, self._charset)\n\t\t\t\t}\n\t\t\t\tself._pos = response.length\n\t\t\t}\n\t\t\tbreak\n\t\tcase 'arraybuffer':\n\t\t\tif (xhr.readyState !== rStates.DONE || !xhr.response)\n\t\t\t\tbreak\n\t\t\tresponse = xhr.response\n\t\t\tself.push(Buffer.from(new Uint8Array(response)))\n\t\t\tbreak\n\t\tcase 'moz-chunked-arraybuffer': // take whole\n\t\t\tresponse = xhr.response\n\t\t\tif (xhr.readyState !== rStates.LOADING || !response)\n\t\t\t\tbreak\n\t\t\tself.push(Buffer.from(new Uint8Array(response)))\n\t\t\tbreak\n\t\tcase 'ms-stream':\n\t\t\tresponse = xhr.response\n\t\t\tif (xhr.readyState !== rStates.LOADING)\n\t\t\t\tbreak\n\t\t\tvar reader = new global.MSStreamReader()\n\t\t\treader.onprogress = function () {\n\t\t\t\tif (reader.result.byteLength > self._pos) {\n\t\t\t\t\tself.push(Buffer.from(new Uint8Array(reader.result.slice(self._pos))))\n\t\t\t\t\tself._pos = reader.result.byteLength\n\t\t\t\t}\n\t\t\t}\n\t\t\treader.onload = function () {\n\t\t\t\tresetTimers(true)\n\t\t\t\tself.push(null)\n\t\t\t}\n\t\t\t// reader.onerror = ??? // TODO: this\n\t\t\treader.readAsArrayBuffer(response)\n\t\t\tbreak\n\t}\n\n\t// The ms-stream case handles end separately in reader.onload()\n\tif (self._xhr.readyState === rStates.DONE && self._mode !== 'ms-stream') {\n\t\tresetTimers(true)\n\t\tself.push(null)\n\t}\n}\n","// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n\n'use strict';\n\n/**/\n\nvar Buffer = require('safe-buffer').Buffer;\n/**/\n\nvar isEncoding = Buffer.isEncoding || function (encoding) {\n encoding = '' + encoding;\n switch (encoding && encoding.toLowerCase()) {\n 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':\n return true;\n default:\n return false;\n }\n};\n\nfunction _normalizeEncoding(enc) {\n if (!enc) return 'utf8';\n var retried;\n while (true) {\n switch (enc) {\n case 'utf8':\n case 'utf-8':\n return 'utf8';\n case 'ucs2':\n case 'ucs-2':\n case 'utf16le':\n case 'utf-16le':\n return 'utf16le';\n case 'latin1':\n case 'binary':\n return 'latin1';\n case 'base64':\n case 'ascii':\n case 'hex':\n return enc;\n default:\n if (retried) return; // undefined\n enc = ('' + enc).toLowerCase();\n retried = true;\n }\n }\n};\n\n// Do not cache `Buffer.isEncoding` when checking encoding names as some\n// modules monkey-patch it to support additional encodings\nfunction normalizeEncoding(enc) {\n var nenc = _normalizeEncoding(enc);\n if (typeof nenc !== 'string' && (Buffer.isEncoding === isEncoding || !isEncoding(enc))) throw new Error('Unknown encoding: ' + enc);\n return nenc || enc;\n}\n\n// StringDecoder provides an interface for efficiently splitting a series of\n// buffers into a series of JS strings without breaking apart multi-byte\n// characters.\nexports.StringDecoder = StringDecoder;\nfunction StringDecoder(encoding) {\n this.encoding = normalizeEncoding(encoding);\n var nb;\n switch (this.encoding) {\n case 'utf16le':\n this.text = utf16Text;\n this.end = utf16End;\n nb = 4;\n break;\n case 'utf8':\n this.fillLast = utf8FillLast;\n nb = 4;\n break;\n case 'base64':\n this.text = base64Text;\n this.end = base64End;\n nb = 3;\n break;\n default:\n this.write = simpleWrite;\n this.end = simpleEnd;\n return;\n }\n this.lastNeed = 0;\n this.lastTotal = 0;\n this.lastChar = Buffer.allocUnsafe(nb);\n}\n\nStringDecoder.prototype.write = function (buf) {\n if (buf.length === 0) return '';\n var r;\n var i;\n if (this.lastNeed) {\n r = this.fillLast(buf);\n if (r === undefined) return '';\n i = this.lastNeed;\n this.lastNeed = 0;\n } else {\n i = 0;\n }\n if (i < buf.length) return r ? r + this.text(buf, i) : this.text(buf, i);\n return r || '';\n};\n\nStringDecoder.prototype.end = utf8End;\n\n// Returns only complete characters in a Buffer\nStringDecoder.prototype.text = utf8Text;\n\n// Attempts to complete a partial non-UTF-8 character using bytes from a Buffer\nStringDecoder.prototype.fillLast = function (buf) {\n if (this.lastNeed <= buf.length) {\n buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, this.lastNeed);\n return this.lastChar.toString(this.encoding, 0, this.lastTotal);\n }\n buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, buf.length);\n this.lastNeed -= buf.length;\n};\n\n// Checks the type of a UTF-8 byte, whether it's ASCII, a leading byte, or a\n// continuation byte. If an invalid byte is detected, -2 is returned.\nfunction utf8CheckByte(byte) {\n 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;\n return byte >> 6 === 0x02 ? -1 : -2;\n}\n\n// Checks at most 3 bytes at the end of a Buffer in order to detect an\n// incomplete multi-byte UTF-8 character. The total number of bytes (2, 3, or 4)\n// needed to complete the UTF-8 character (if applicable) are returned.\nfunction utf8CheckIncomplete(self, buf, i) {\n var j = buf.length - 1;\n if (j < i) return 0;\n var nb = utf8CheckByte(buf[j]);\n if (nb >= 0) {\n if (nb > 0) self.lastNeed = nb - 1;\n return nb;\n }\n if (--j < i || nb === -2) return 0;\n nb = utf8CheckByte(buf[j]);\n if (nb >= 0) {\n if (nb > 0) self.lastNeed = nb - 2;\n return nb;\n }\n if (--j < i || nb === -2) return 0;\n nb = utf8CheckByte(buf[j]);\n if (nb >= 0) {\n if (nb > 0) {\n if (nb === 2) nb = 0;else self.lastNeed = nb - 3;\n }\n return nb;\n }\n return 0;\n}\n\n// Validates as many continuation bytes for a multi-byte UTF-8 character as\n// needed or are available. If we see a non-continuation byte where we expect\n// one, we \"replace\" the validated continuation bytes we've seen so far with\n// a single UTF-8 replacement character ('\\ufffd'), to match v8's UTF-8 decoding\n// behavior. The continuation byte check is included three times in the case\n// where all of the continuation bytes for a character exist in the same buffer.\n// It is also done this way as a slight performance increase instead of using a\n// loop.\nfunction utf8CheckExtraBytes(self, buf, p) {\n if ((buf[0] & 0xC0) !== 0x80) {\n self.lastNeed = 0;\n return '\\ufffd';\n }\n if (self.lastNeed > 1 && buf.length > 1) {\n if ((buf[1] & 0xC0) !== 0x80) {\n self.lastNeed = 1;\n return '\\ufffd';\n }\n if (self.lastNeed > 2 && buf.length > 2) {\n if ((buf[2] & 0xC0) !== 0x80) {\n self.lastNeed = 2;\n return '\\ufffd';\n }\n }\n }\n}\n\n// Attempts to complete a multi-byte UTF-8 character using bytes from a Buffer.\nfunction utf8FillLast(buf) {\n var p = this.lastTotal - this.lastNeed;\n var r = utf8CheckExtraBytes(this, buf, p);\n if (r !== undefined) return r;\n if (this.lastNeed <= buf.length) {\n buf.copy(this.lastChar, p, 0, this.lastNeed);\n return this.lastChar.toString(this.encoding, 0, this.lastTotal);\n }\n buf.copy(this.lastChar, p, 0, buf.length);\n this.lastNeed -= buf.length;\n}\n\n// Returns all complete UTF-8 characters in a Buffer. If the Buffer ended on a\n// partial character, the character's bytes are buffered until the required\n// number of bytes are available.\nfunction utf8Text(buf, i) {\n var total = utf8CheckIncomplete(this, buf, i);\n if (!this.lastNeed) return buf.toString('utf8', i);\n this.lastTotal = total;\n var end = buf.length - (total - this.lastNeed);\n buf.copy(this.lastChar, 0, end);\n return buf.toString('utf8', i, end);\n}\n\n// For UTF-8, a replacement character is added when ending on a partial\n// character.\nfunction utf8End(buf) {\n var r = buf && buf.length ? this.write(buf) : '';\n if (this.lastNeed) return r + '\\ufffd';\n return r;\n}\n\n// UTF-16LE typically needs two bytes per character, but even if we have an even\n// number of bytes available, we need to check if we end on a leading/high\n// surrogate. In that case, we need to wait for the next two bytes in order to\n// decode the last character properly.\nfunction utf16Text(buf, i) {\n if ((buf.length - i) % 2 === 0) {\n var r = buf.toString('utf16le', i);\n if (r) {\n var c = r.charCodeAt(r.length - 1);\n if (c >= 0xD800 && c <= 0xDBFF) {\n this.lastNeed = 2;\n this.lastTotal = 4;\n this.lastChar[0] = buf[buf.length - 2];\n this.lastChar[1] = buf[buf.length - 1];\n return r.slice(0, -1);\n }\n }\n return r;\n }\n this.lastNeed = 1;\n this.lastTotal = 2;\n this.lastChar[0] = buf[buf.length - 1];\n return buf.toString('utf16le', i, buf.length - 1);\n}\n\n// For UTF-16LE we do not explicitly append special replacement characters if we\n// end on a partial character, we simply let v8 handle that.\nfunction utf16End(buf) {\n var r = buf && buf.length ? this.write(buf) : '';\n if (this.lastNeed) {\n var end = this.lastTotal - this.lastNeed;\n return r + this.lastChar.toString('utf16le', 0, end);\n }\n return r;\n}\n\nfunction base64Text(buf, i) {\n var n = (buf.length - i) % 3;\n if (n === 0) return buf.toString('base64', i);\n this.lastNeed = 3 - n;\n this.lastTotal = 3;\n if (n === 1) {\n this.lastChar[0] = buf[buf.length - 1];\n } else {\n this.lastChar[0] = buf[buf.length - 2];\n this.lastChar[1] = buf[buf.length - 1];\n }\n return buf.toString('base64', i, buf.length - n);\n}\n\nfunction base64End(buf) {\n var r = buf && buf.length ? this.write(buf) : '';\n if (this.lastNeed) return r + this.lastChar.toString('base64', 0, 3 - this.lastNeed);\n return r;\n}\n\n// Pass bytes on through for single-byte encodings (e.g. ascii, latin1, hex)\nfunction simpleWrite(buf) {\n return buf.toString(this.encoding);\n}\n\nfunction simpleEnd(buf) {\n return buf && buf.length ? this.write(buf) : '';\n}","\"use strict\";\n\nvar stylesInDOM = [];\n\nfunction getIndexByIdentifier(identifier) {\n var result = -1;\n\n for (var i = 0; i < stylesInDOM.length; i++) {\n if (stylesInDOM[i].identifier === identifier) {\n result = i;\n break;\n }\n }\n\n return result;\n}\n\nfunction modulesToDom(list, options) {\n var idCountMap = {};\n var identifiers = [];\n\n for (var i = 0; i < list.length; i++) {\n var item = list[i];\n var id = options.base ? item[0] + options.base : item[0];\n var count = idCountMap[id] || 0;\n var identifier = \"\".concat(id, \" \").concat(count);\n idCountMap[id] = count + 1;\n var indexByIdentifier = getIndexByIdentifier(identifier);\n var obj = {\n css: item[1],\n media: item[2],\n sourceMap: item[3],\n supports: item[4],\n layer: item[5]\n };\n\n if (indexByIdentifier !== -1) {\n stylesInDOM[indexByIdentifier].references++;\n stylesInDOM[indexByIdentifier].updater(obj);\n } else {\n var updater = addElementStyle(obj, options);\n options.byIndex = i;\n stylesInDOM.splice(i, 0, {\n identifier: identifier,\n updater: updater,\n references: 1\n });\n }\n\n identifiers.push(identifier);\n }\n\n return identifiers;\n}\n\nfunction addElementStyle(obj, options) {\n var api = options.domAPI(options);\n api.update(obj);\n\n var updater = function updater(newObj) {\n if (newObj) {\n if (newObj.css === obj.css && newObj.media === obj.media && newObj.sourceMap === obj.sourceMap && newObj.supports === obj.supports && newObj.layer === obj.layer) {\n return;\n }\n\n api.update(obj = newObj);\n } else {\n api.remove();\n }\n };\n\n return updater;\n}\n\nmodule.exports = function (list, options) {\n options = options || {};\n list = list || [];\n var lastIdentifiers = modulesToDom(list, options);\n return function update(newList) {\n newList = newList || [];\n\n for (var i = 0; i < lastIdentifiers.length; i++) {\n var identifier = lastIdentifiers[i];\n var index = getIndexByIdentifier(identifier);\n stylesInDOM[index].references--;\n }\n\n var newLastIdentifiers = modulesToDom(newList, options);\n\n for (var _i = 0; _i < lastIdentifiers.length; _i++) {\n var _identifier = lastIdentifiers[_i];\n\n var _index = getIndexByIdentifier(_identifier);\n\n if (stylesInDOM[_index].references === 0) {\n stylesInDOM[_index].updater();\n\n stylesInDOM.splice(_index, 1);\n }\n }\n\n lastIdentifiers = newLastIdentifiers;\n };\n};","\"use strict\";\n\nvar memo = {};\n/* istanbul ignore next */\n\nfunction getTarget(target) {\n if (typeof memo[target] === \"undefined\") {\n var styleTarget = document.querySelector(target); // Special case to return head of iframe instead of iframe itself\n\n if (window.HTMLIFrameElement && styleTarget instanceof window.HTMLIFrameElement) {\n try {\n // This will throw an exception if access to iframe is blocked\n // due to cross-origin restrictions\n styleTarget = styleTarget.contentDocument.head;\n } catch (e) {\n // istanbul ignore next\n styleTarget = null;\n }\n }\n\n memo[target] = styleTarget;\n }\n\n return memo[target];\n}\n/* istanbul ignore next */\n\n\nfunction insertBySelector(insert, style) {\n var target = getTarget(insert);\n\n if (!target) {\n throw new Error(\"Couldn't find a style target. This probably means that the value for the 'insert' parameter is invalid.\");\n }\n\n target.appendChild(style);\n}\n\nmodule.exports = insertBySelector;","\"use strict\";\n\n/* istanbul ignore next */\nfunction insertStyleElement(options) {\n var element = document.createElement(\"style\");\n options.setAttributes(element, options.attributes);\n options.insert(element, options.options);\n return element;\n}\n\nmodule.exports = insertStyleElement;","\"use strict\";\n\n/* istanbul ignore next */\nfunction setAttributesWithoutAttributes(styleElement) {\n var nonce = typeof __webpack_nonce__ !== \"undefined\" ? __webpack_nonce__ : null;\n\n if (nonce) {\n styleElement.setAttribute(\"nonce\", nonce);\n }\n}\n\nmodule.exports = setAttributesWithoutAttributes;","\"use strict\";\n\n/* istanbul ignore next */\nfunction apply(styleElement, options, obj) {\n var css = \"\";\n\n if (obj.supports) {\n css += \"@supports (\".concat(obj.supports, \") {\");\n }\n\n if (obj.media) {\n css += \"@media \".concat(obj.media, \" {\");\n }\n\n var needLayer = typeof obj.layer !== \"undefined\";\n\n if (needLayer) {\n css += \"@layer\".concat(obj.layer.length > 0 ? \" \".concat(obj.layer) : \"\", \" {\");\n }\n\n css += obj.css;\n\n if (needLayer) {\n css += \"}\";\n }\n\n if (obj.media) {\n css += \"}\";\n }\n\n if (obj.supports) {\n css += \"}\";\n }\n\n var sourceMap = obj.sourceMap;\n\n if (sourceMap && typeof btoa !== \"undefined\") {\n css += \"\\n/*# sourceMappingURL=data:application/json;base64,\".concat(btoa(unescape(encodeURIComponent(JSON.stringify(sourceMap)))), \" */\");\n } // For old IE\n\n /* istanbul ignore if */\n\n\n options.styleTagTransform(css, styleElement, options.options);\n}\n\nfunction removeStyleElement(styleElement) {\n // istanbul ignore if\n if (styleElement.parentNode === null) {\n return false;\n }\n\n styleElement.parentNode.removeChild(styleElement);\n}\n/* istanbul ignore next */\n\n\nfunction domAPI(options) {\n var styleElement = options.insertStyleElement(options);\n return {\n update: function update(obj) {\n apply(styleElement, options, obj);\n },\n remove: function remove() {\n removeStyleElement(styleElement);\n }\n };\n}\n\nmodule.exports = domAPI;","\"use strict\";\n\n/* istanbul ignore next */\nfunction styleTagTransform(css, styleElement) {\n if (styleElement.styleSheet) {\n styleElement.styleSheet.cssText = css;\n } else {\n while (styleElement.firstChild) {\n styleElement.removeChild(styleElement.firstChild);\n }\n\n styleElement.appendChild(document.createTextNode(css));\n }\n}\n\nmodule.exports = styleTagTransform;","/*! https://mths.be/punycode v1.3.2 by @mathias */\n;(function(root) {\n\n\t/** Detect free variables */\n\tvar freeExports = typeof exports == 'object' && exports &&\n\t\t!exports.nodeType && exports;\n\tvar freeModule = typeof module == 'object' && module &&\n\t\t!module.nodeType && module;\n\tvar freeGlobal = typeof global == 'object' && global;\n\tif (\n\t\tfreeGlobal.global === freeGlobal ||\n\t\tfreeGlobal.window === freeGlobal ||\n\t\tfreeGlobal.self === freeGlobal\n\t) {\n\t\troot = freeGlobal;\n\t}\n\n\t/**\n\t * The `punycode` object.\n\t * @name punycode\n\t * @type Object\n\t */\n\tvar punycode,\n\n\t/** Highest positive signed 32-bit float value */\n\tmaxInt = 2147483647, // aka. 0x7FFFFFFF or 2^31-1\n\n\t/** Bootstring parameters */\n\tbase = 36,\n\ttMin = 1,\n\ttMax = 26,\n\tskew = 38,\n\tdamp = 700,\n\tinitialBias = 72,\n\tinitialN = 128, // 0x80\n\tdelimiter = '-', // '\\x2D'\n\n\t/** Regular expressions */\n\tregexPunycode = /^xn--/,\n\tregexNonASCII = /[^\\x20-\\x7E]/, // unprintable ASCII chars + non-ASCII chars\n\tregexSeparators = /[\\x2E\\u3002\\uFF0E\\uFF61]/g, // RFC 3490 separators\n\n\t/** Error messages */\n\terrors = {\n\t\t'overflow': 'Overflow: input needs wider integers to process',\n\t\t'not-basic': 'Illegal input >= 0x80 (not a basic code point)',\n\t\t'invalid-input': 'Invalid input'\n\t},\n\n\t/** Convenience shortcuts */\n\tbaseMinusTMin = base - tMin,\n\tfloor = Math.floor,\n\tstringFromCharCode = String.fromCharCode,\n\n\t/** Temporary variable */\n\tkey;\n\n\t/*--------------------------------------------------------------------------*/\n\n\t/**\n\t * A generic error utility function.\n\t * @private\n\t * @param {String} type The error type.\n\t * @returns {Error} Throws a `RangeError` with the applicable error message.\n\t */\n\tfunction error(type) {\n\t\tthrow RangeError(errors[type]);\n\t}\n\n\t/**\n\t * A generic `Array#map` utility function.\n\t * @private\n\t * @param {Array} array The array to iterate over.\n\t * @param {Function} callback The function that gets called for every array\n\t * item.\n\t * @returns {Array} A new array of values returned by the callback function.\n\t */\n\tfunction map(array, fn) {\n\t\tvar length = array.length;\n\t\tvar result = [];\n\t\twhile (length--) {\n\t\t\tresult[length] = fn(array[length]);\n\t\t}\n\t\treturn result;\n\t}\n\n\t/**\n\t * A simple `Array#map`-like wrapper to work with domain name strings or email\n\t * addresses.\n\t * @private\n\t * @param {String} domain The domain name or email address.\n\t * @param {Function} callback The function that gets called for every\n\t * character.\n\t * @returns {Array} A new string of characters returned by the callback\n\t * function.\n\t */\n\tfunction mapDomain(string, fn) {\n\t\tvar parts = string.split('@');\n\t\tvar result = '';\n\t\tif (parts.length > 1) {\n\t\t\t// In email addresses, only the domain name should be punycoded. Leave\n\t\t\t// the local part (i.e. everything up to `@`) intact.\n\t\t\tresult = parts[0] + '@';\n\t\t\tstring = parts[1];\n\t\t}\n\t\t// Avoid `split(regex)` for IE8 compatibility. See #17.\n\t\tstring = string.replace(regexSeparators, '\\x2E');\n\t\tvar labels = string.split('.');\n\t\tvar encoded = map(labels, fn).join('.');\n\t\treturn result + encoded;\n\t}\n\n\t/**\n\t * Creates an array containing the numeric code points of each Unicode\n\t * character in the string. While JavaScript uses UCS-2 internally,\n\t * this function will convert a pair of surrogate halves (each of which\n\t * UCS-2 exposes as separate characters) into a single code point,\n\t * matching UTF-16.\n\t * @see `punycode.ucs2.encode`\n\t * @see \n\t * @memberOf punycode.ucs2\n\t * @name decode\n\t * @param {String} string The Unicode input string (UCS-2).\n\t * @returns {Array} The new array of code points.\n\t */\n\tfunction ucs2decode(string) {\n\t\tvar output = [],\n\t\t counter = 0,\n\t\t length = string.length,\n\t\t value,\n\t\t extra;\n\t\twhile (counter < length) {\n\t\t\tvalue = string.charCodeAt(counter++);\n\t\t\tif (value >= 0xD800 && value <= 0xDBFF && counter < length) {\n\t\t\t\t// high surrogate, and there is a next character\n\t\t\t\textra = string.charCodeAt(counter++);\n\t\t\t\tif ((extra & 0xFC00) == 0xDC00) { // low surrogate\n\t\t\t\t\toutput.push(((value & 0x3FF) << 10) + (extra & 0x3FF) + 0x10000);\n\t\t\t\t} else {\n\t\t\t\t\t// unmatched surrogate; only append this code unit, in case the next\n\t\t\t\t\t// code unit is the high surrogate of a surrogate pair\n\t\t\t\t\toutput.push(value);\n\t\t\t\t\tcounter--;\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\toutput.push(value);\n\t\t\t}\n\t\t}\n\t\treturn output;\n\t}\n\n\t/**\n\t * Creates a string based on an array of numeric code points.\n\t * @see `punycode.ucs2.decode`\n\t * @memberOf punycode.ucs2\n\t * @name encode\n\t * @param {Array} codePoints The array of numeric code points.\n\t * @returns {String} The new Unicode string (UCS-2).\n\t */\n\tfunction ucs2encode(array) {\n\t\treturn map(array, function(value) {\n\t\t\tvar output = '';\n\t\t\tif (value > 0xFFFF) {\n\t\t\t\tvalue -= 0x10000;\n\t\t\t\toutput += stringFromCharCode(value >>> 10 & 0x3FF | 0xD800);\n\t\t\t\tvalue = 0xDC00 | value & 0x3FF;\n\t\t\t}\n\t\t\toutput += stringFromCharCode(value);\n\t\t\treturn output;\n\t\t}).join('');\n\t}\n\n\t/**\n\t * Converts a basic code point into a digit/integer.\n\t * @see `digitToBasic()`\n\t * @private\n\t * @param {Number} codePoint The basic numeric code point value.\n\t * @returns {Number} The numeric value of a basic code point (for use in\n\t * representing integers) in the range `0` to `base - 1`, or `base` if\n\t * the code point does not represent a value.\n\t */\n\tfunction basicToDigit(codePoint) {\n\t\tif (codePoint - 48 < 10) {\n\t\t\treturn codePoint - 22;\n\t\t}\n\t\tif (codePoint - 65 < 26) {\n\t\t\treturn codePoint - 65;\n\t\t}\n\t\tif (codePoint - 97 < 26) {\n\t\t\treturn codePoint - 97;\n\t\t}\n\t\treturn base;\n\t}\n\n\t/**\n\t * Converts a digit/integer into a basic code point.\n\t * @see `basicToDigit()`\n\t * @private\n\t * @param {Number} digit The numeric value of a basic code point.\n\t * @returns {Number} The basic code point whose value (when used for\n\t * representing integers) is `digit`, which needs to be in the range\n\t * `0` to `base - 1`. If `flag` is non-zero, the uppercase form is\n\t * used; else, the lowercase form is used. The behavior is undefined\n\t * if `flag` is non-zero and `digit` has no uppercase form.\n\t */\n\tfunction digitToBasic(digit, flag) {\n\t\t// 0..25 map to ASCII a..z or A..Z\n\t\t// 26..35 map to ASCII 0..9\n\t\treturn digit + 22 + 75 * (digit < 26) - ((flag != 0) << 5);\n\t}\n\n\t/**\n\t * Bias adaptation function as per section 3.4 of RFC 3492.\n\t * http://tools.ietf.org/html/rfc3492#section-3.4\n\t * @private\n\t */\n\tfunction adapt(delta, numPoints, firstTime) {\n\t\tvar k = 0;\n\t\tdelta = firstTime ? floor(delta / damp) : delta >> 1;\n\t\tdelta += floor(delta / numPoints);\n\t\tfor (/* no initialization */; delta > baseMinusTMin * tMax >> 1; k += base) {\n\t\t\tdelta = floor(delta / baseMinusTMin);\n\t\t}\n\t\treturn floor(k + (baseMinusTMin + 1) * delta / (delta + skew));\n\t}\n\n\t/**\n\t * Converts a Punycode string of ASCII-only symbols to a string of Unicode\n\t * symbols.\n\t * @memberOf punycode\n\t * @param {String} input The Punycode string of ASCII-only symbols.\n\t * @returns {String} The resulting string of Unicode symbols.\n\t */\n\tfunction decode(input) {\n\t\t// Don't use UCS-2\n\t\tvar output = [],\n\t\t inputLength = input.length,\n\t\t out,\n\t\t i = 0,\n\t\t n = initialN,\n\t\t bias = initialBias,\n\t\t basic,\n\t\t j,\n\t\t index,\n\t\t oldi,\n\t\t w,\n\t\t k,\n\t\t digit,\n\t\t t,\n\t\t /** Cached calculation results */\n\t\t baseMinusT;\n\n\t\t// Handle the basic code points: let `basic` be the number of input code\n\t\t// points before the last delimiter, or `0` if there is none, then copy\n\t\t// the first basic code points to the output.\n\n\t\tbasic = input.lastIndexOf(delimiter);\n\t\tif (basic < 0) {\n\t\t\tbasic = 0;\n\t\t}\n\n\t\tfor (j = 0; j < basic; ++j) {\n\t\t\t// if it's not a basic code point\n\t\t\tif (input.charCodeAt(j) >= 0x80) {\n\t\t\t\terror('not-basic');\n\t\t\t}\n\t\t\toutput.push(input.charCodeAt(j));\n\t\t}\n\n\t\t// Main decoding loop: start just after the last delimiter if any basic code\n\t\t// points were copied; start at the beginning otherwise.\n\n\t\tfor (index = basic > 0 ? basic + 1 : 0; index < inputLength; /* no final expression */) {\n\n\t\t\t// `index` is the index of the next character to be consumed.\n\t\t\t// Decode a generalized variable-length integer into `delta`,\n\t\t\t// which gets added to `i`. The overflow checking is easier\n\t\t\t// if we increase `i` as we go, then subtract off its starting\n\t\t\t// value at the end to obtain `delta`.\n\t\t\tfor (oldi = i, w = 1, k = base; /* no condition */; k += base) {\n\n\t\t\t\tif (index >= inputLength) {\n\t\t\t\t\terror('invalid-input');\n\t\t\t\t}\n\n\t\t\t\tdigit = basicToDigit(input.charCodeAt(index++));\n\n\t\t\t\tif (digit >= base || digit > floor((maxInt - i) / w)) {\n\t\t\t\t\terror('overflow');\n\t\t\t\t}\n\n\t\t\t\ti += digit * w;\n\t\t\t\tt = k <= bias ? tMin : (k >= bias + tMax ? tMax : k - bias);\n\n\t\t\t\tif (digit < t) {\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\n\t\t\t\tbaseMinusT = base - t;\n\t\t\t\tif (w > floor(maxInt / baseMinusT)) {\n\t\t\t\t\terror('overflow');\n\t\t\t\t}\n\n\t\t\t\tw *= baseMinusT;\n\n\t\t\t}\n\n\t\t\tout = output.length + 1;\n\t\t\tbias = adapt(i - oldi, out, oldi == 0);\n\n\t\t\t// `i` was supposed to wrap around from `out` to `0`,\n\t\t\t// incrementing `n` each time, so we'll fix that now:\n\t\t\tif (floor(i / out) > maxInt - n) {\n\t\t\t\terror('overflow');\n\t\t\t}\n\n\t\t\tn += floor(i / out);\n\t\t\ti %= out;\n\n\t\t\t// Insert `n` at position `i` of the output\n\t\t\toutput.splice(i++, 0, n);\n\n\t\t}\n\n\t\treturn ucs2encode(output);\n\t}\n\n\t/**\n\t * Converts a string of Unicode symbols (e.g. a domain name label) to a\n\t * Punycode string of ASCII-only symbols.\n\t * @memberOf punycode\n\t * @param {String} input The string of Unicode symbols.\n\t * @returns {String} The resulting Punycode string of ASCII-only symbols.\n\t */\n\tfunction encode(input) {\n\t\tvar n,\n\t\t delta,\n\t\t handledCPCount,\n\t\t basicLength,\n\t\t bias,\n\t\t j,\n\t\t m,\n\t\t q,\n\t\t k,\n\t\t t,\n\t\t currentValue,\n\t\t output = [],\n\t\t /** `inputLength` will hold the number of code points in `input`. */\n\t\t inputLength,\n\t\t /** Cached calculation results */\n\t\t handledCPCountPlusOne,\n\t\t baseMinusT,\n\t\t qMinusT;\n\n\t\t// Convert the input in UCS-2 to Unicode\n\t\tinput = ucs2decode(input);\n\n\t\t// Cache the length\n\t\tinputLength = input.length;\n\n\t\t// Initialize the state\n\t\tn = initialN;\n\t\tdelta = 0;\n\t\tbias = initialBias;\n\n\t\t// Handle the basic code points\n\t\tfor (j = 0; j < inputLength; ++j) {\n\t\t\tcurrentValue = input[j];\n\t\t\tif (currentValue < 0x80) {\n\t\t\t\toutput.push(stringFromCharCode(currentValue));\n\t\t\t}\n\t\t}\n\n\t\thandledCPCount = basicLength = output.length;\n\n\t\t// `handledCPCount` is the number of code points that have been handled;\n\t\t// `basicLength` is the number of basic code points.\n\n\t\t// Finish the basic string - if it is not empty - with a delimiter\n\t\tif (basicLength) {\n\t\t\toutput.push(delimiter);\n\t\t}\n\n\t\t// Main encoding loop:\n\t\twhile (handledCPCount < inputLength) {\n\n\t\t\t// All non-basic code points < n have been handled already. Find the next\n\t\t\t// larger one:\n\t\t\tfor (m = maxInt, j = 0; j < inputLength; ++j) {\n\t\t\t\tcurrentValue = input[j];\n\t\t\t\tif (currentValue >= n && currentValue < m) {\n\t\t\t\t\tm = currentValue;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// Increase `delta` enough to advance the decoder's state to ,\n\t\t\t// but guard against overflow\n\t\t\thandledCPCountPlusOne = handledCPCount + 1;\n\t\t\tif (m - n > floor((maxInt - delta) / handledCPCountPlusOne)) {\n\t\t\t\terror('overflow');\n\t\t\t}\n\n\t\t\tdelta += (m - n) * handledCPCountPlusOne;\n\t\t\tn = m;\n\n\t\t\tfor (j = 0; j < inputLength; ++j) {\n\t\t\t\tcurrentValue = input[j];\n\n\t\t\t\tif (currentValue < n && ++delta > maxInt) {\n\t\t\t\t\terror('overflow');\n\t\t\t\t}\n\n\t\t\t\tif (currentValue == n) {\n\t\t\t\t\t// Represent delta as a generalized variable-length integer\n\t\t\t\t\tfor (q = delta, k = base; /* no condition */; k += base) {\n\t\t\t\t\t\tt = k <= bias ? tMin : (k >= bias + tMax ? tMax : k - bias);\n\t\t\t\t\t\tif (q < t) {\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\t}\n\t\t\t\t\t\tqMinusT = q - t;\n\t\t\t\t\t\tbaseMinusT = base - t;\n\t\t\t\t\t\toutput.push(\n\t\t\t\t\t\t\tstringFromCharCode(digitToBasic(t + qMinusT % baseMinusT, 0))\n\t\t\t\t\t\t);\n\t\t\t\t\t\tq = floor(qMinusT / baseMinusT);\n\t\t\t\t\t}\n\n\t\t\t\t\toutput.push(stringFromCharCode(digitToBasic(q, 0)));\n\t\t\t\t\tbias = adapt(delta, handledCPCountPlusOne, handledCPCount == basicLength);\n\t\t\t\t\tdelta = 0;\n\t\t\t\t\t++handledCPCount;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t++delta;\n\t\t\t++n;\n\n\t\t}\n\t\treturn output.join('');\n\t}\n\n\t/**\n\t * Converts a Punycode string representing a domain name or an email address\n\t * to Unicode. Only the Punycoded parts of the input will be converted, i.e.\n\t * it doesn't matter if you call it on a string that has already been\n\t * converted to Unicode.\n\t * @memberOf punycode\n\t * @param {String} input The Punycoded domain name or email address to\n\t * convert to Unicode.\n\t * @returns {String} The Unicode representation of the given Punycode\n\t * string.\n\t */\n\tfunction toUnicode(input) {\n\t\treturn mapDomain(input, function(string) {\n\t\t\treturn regexPunycode.test(string)\n\t\t\t\t? decode(string.slice(4).toLowerCase())\n\t\t\t\t: string;\n\t\t});\n\t}\n\n\t/**\n\t * Converts a Unicode string representing a domain name or an email address to\n\t * Punycode. Only the non-ASCII parts of the domain name will be converted,\n\t * i.e. it doesn't matter if you call it with a domain that's already in\n\t * ASCII.\n\t * @memberOf punycode\n\t * @param {String} input The domain name or email address to convert, as a\n\t * Unicode string.\n\t * @returns {String} The Punycode representation of the given domain name or\n\t * email address.\n\t */\n\tfunction toASCII(input) {\n\t\treturn mapDomain(input, function(string) {\n\t\t\treturn regexNonASCII.test(string)\n\t\t\t\t? 'xn--' + encode(string)\n\t\t\t\t: string;\n\t\t});\n\t}\n\n\t/*--------------------------------------------------------------------------*/\n\n\t/** Define the public API */\n\tpunycode = {\n\t\t/**\n\t\t * A string representing the current Punycode.js version number.\n\t\t * @memberOf punycode\n\t\t * @type String\n\t\t */\n\t\t'version': '1.3.2',\n\t\t/**\n\t\t * An object of methods to convert from JavaScript's internal character\n\t\t * representation (UCS-2) to Unicode code points, and back.\n\t\t * @see \n\t\t * @memberOf punycode\n\t\t * @type Object\n\t\t */\n\t\t'ucs2': {\n\t\t\t'decode': ucs2decode,\n\t\t\t'encode': ucs2encode\n\t\t},\n\t\t'decode': decode,\n\t\t'encode': encode,\n\t\t'toASCII': toASCII,\n\t\t'toUnicode': toUnicode\n\t};\n\n\t/** Expose `punycode` */\n\t// Some AMD build optimizers, like r.js, check for specific condition patterns\n\t// like the following:\n\tif (\n\t\ttypeof define == 'function' &&\n\t\ttypeof define.amd == 'object' &&\n\t\tdefine.amd\n\t) {\n\t\tdefine('punycode', function() {\n\t\t\treturn punycode;\n\t\t});\n\t} else if (freeExports && freeModule) {\n\t\tif (module.exports == freeExports) { // in Node.js or RingoJS v0.8.0+\n\t\t\tfreeModule.exports = punycode;\n\t\t} else { // in Narwhal or RingoJS v0.7.0-\n\t\t\tfor (key in punycode) {\n\t\t\t\tpunycode.hasOwnProperty(key) && (freeExports[key] = punycode[key]);\n\t\t\t}\n\t\t}\n\t} else { // in Rhino or a web browser\n\t\troot.punycode = punycode;\n\t}\n\n}(this));\n","// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n\n'use strict';\n\nvar punycode = require('punycode');\nvar util = require('./util');\n\nexports.parse = urlParse;\nexports.resolve = urlResolve;\nexports.resolveObject = urlResolveObject;\nexports.format = urlFormat;\n\nexports.Url = Url;\n\nfunction Url() {\n this.protocol = null;\n this.slashes = null;\n this.auth = null;\n this.host = null;\n this.port = null;\n this.hostname = null;\n this.hash = null;\n this.search = null;\n this.query = null;\n this.pathname = null;\n this.path = null;\n this.href = null;\n}\n\n// Reference: RFC 3986, RFC 1808, RFC 2396\n\n// define these here so at least they only have to be\n// compiled once on the first module load.\nvar protocolPattern = /^([a-z0-9.+-]+:)/i,\n portPattern = /:[0-9]*$/,\n\n // Special case for a simple path URL\n simplePathPattern = /^(\\/\\/?(?!\\/)[^\\?\\s]*)(\\?[^\\s]*)?$/,\n\n // RFC 2396: characters reserved for delimiting URLs.\n // We actually just auto-escape these.\n delims = ['<', '>', '\"', '`', ' ', '\\r', '\\n', '\\t'],\n\n // RFC 2396: characters not allowed for various reasons.\n unwise = ['{', '}', '|', '\\\\', '^', '`'].concat(delims),\n\n // Allowed by RFCs, but cause of XSS attacks. Always escape these.\n autoEscape = ['\\''].concat(unwise),\n // Characters that are never ever allowed in a hostname.\n // Note that any invalid chars are also handled, but these\n // are the ones that are *expected* to be seen, so we fast-path\n // them.\n nonHostChars = ['%', '/', '?', ';', '#'].concat(autoEscape),\n hostEndingChars = ['/', '?', '#'],\n hostnameMaxLen = 255,\n hostnamePartPattern = /^[+a-z0-9A-Z_-]{0,63}$/,\n hostnamePartStart = /^([+a-z0-9A-Z_-]{0,63})(.*)$/,\n // protocols that can allow \"unsafe\" and \"unwise\" chars.\n unsafeProtocol = {\n 'javascript': true,\n 'javascript:': true\n },\n // protocols that never have a hostname.\n hostlessProtocol = {\n 'javascript': true,\n 'javascript:': true\n },\n // protocols that always contain a // bit.\n slashedProtocol = {\n 'http': true,\n 'https': true,\n 'ftp': true,\n 'gopher': true,\n 'file': true,\n 'http:': true,\n 'https:': true,\n 'ftp:': true,\n 'gopher:': true,\n 'file:': true\n },\n querystring = require('querystring');\n\nfunction urlParse(url, parseQueryString, slashesDenoteHost) {\n if (url && util.isObject(url) && url instanceof Url) return url;\n\n var u = new Url;\n u.parse(url, parseQueryString, slashesDenoteHost);\n return u;\n}\n\nUrl.prototype.parse = function(url, parseQueryString, slashesDenoteHost) {\n if (!util.isString(url)) {\n throw new TypeError(\"Parameter 'url' must be a string, not \" + typeof url);\n }\n\n // Copy chrome, IE, opera backslash-handling behavior.\n // Back slashes before the query string get converted to forward slashes\n // See: https://code.google.com/p/chromium/issues/detail?id=25916\n var queryIndex = url.indexOf('?'),\n splitter =\n (queryIndex !== -1 && queryIndex < url.indexOf('#')) ? '?' : '#',\n uSplit = url.split(splitter),\n slashRegex = /\\\\/g;\n uSplit[0] = uSplit[0].replace(slashRegex, '/');\n url = uSplit.join(splitter);\n\n var rest = url;\n\n // trim before proceeding.\n // This is to support parse stuff like \" http://foo.com \\n\"\n rest = rest.trim();\n\n if (!slashesDenoteHost && url.split('#').length === 1) {\n // Try fast path regexp\n var simplePath = simplePathPattern.exec(rest);\n if (simplePath) {\n this.path = rest;\n this.href = rest;\n this.pathname = simplePath[1];\n if (simplePath[2]) {\n this.search = simplePath[2];\n if (parseQueryString) {\n this.query = querystring.parse(this.search.substr(1));\n } else {\n this.query = this.search.substr(1);\n }\n } else if (parseQueryString) {\n this.search = '';\n this.query = {};\n }\n return this;\n }\n }\n\n var proto = protocolPattern.exec(rest);\n if (proto) {\n proto = proto[0];\n var lowerProto = proto.toLowerCase();\n this.protocol = lowerProto;\n rest = rest.substr(proto.length);\n }\n\n // figure out if it's got a host\n // user@server is *always* interpreted as a hostname, and url\n // resolution will treat //foo/bar as host=foo,path=bar because that's\n // how the browser resolves relative URLs.\n if (slashesDenoteHost || proto || rest.match(/^\\/\\/[^@\\/]+@[^@\\/]+/)) {\n var slashes = rest.substr(0, 2) === '//';\n if (slashes && !(proto && hostlessProtocol[proto])) {\n rest = rest.substr(2);\n this.slashes = true;\n }\n }\n\n if (!hostlessProtocol[proto] &&\n (slashes || (proto && !slashedProtocol[proto]))) {\n\n // there's a hostname.\n // the first instance of /, ?, ;, or # ends the host.\n //\n // If there is an @ in the hostname, then non-host chars *are* allowed\n // to the left of the last @ sign, unless some host-ending character\n // comes *before* the @-sign.\n // URLs are obnoxious.\n //\n // ex:\n // http://a@b@c/ => user:a@b host:c\n // http://a@b?@c => user:a host:c path:/?@c\n\n // v0.12 TODO(isaacs): This is not quite how Chrome does things.\n // Review our test case against browsers more comprehensively.\n\n // find the first instance of any hostEndingChars\n var hostEnd = -1;\n for (var i = 0; i < hostEndingChars.length; i++) {\n var hec = rest.indexOf(hostEndingChars[i]);\n if (hec !== -1 && (hostEnd === -1 || hec < hostEnd))\n hostEnd = hec;\n }\n\n // at this point, either we have an explicit point where the\n // auth portion cannot go past, or the last @ char is the decider.\n var auth, atSign;\n if (hostEnd === -1) {\n // atSign can be anywhere.\n atSign = rest.lastIndexOf('@');\n } else {\n // atSign must be in auth portion.\n // http://a@b/c@d => host:b auth:a path:/c@d\n atSign = rest.lastIndexOf('@', hostEnd);\n }\n\n // Now we have a portion which is definitely the auth.\n // Pull that off.\n if (atSign !== -1) {\n auth = rest.slice(0, atSign);\n rest = rest.slice(atSign + 1);\n this.auth = decodeURIComponent(auth);\n }\n\n // the host is the remaining to the left of the first non-host char\n hostEnd = -1;\n for (var i = 0; i < nonHostChars.length; i++) {\n var hec = rest.indexOf(nonHostChars[i]);\n if (hec !== -1 && (hostEnd === -1 || hec < hostEnd))\n hostEnd = hec;\n }\n // if we still have not hit it, then the entire thing is a host.\n if (hostEnd === -1)\n hostEnd = rest.length;\n\n this.host = rest.slice(0, hostEnd);\n rest = rest.slice(hostEnd);\n\n // pull out port.\n this.parseHost();\n\n // we've indicated that there is a hostname,\n // so even if it's empty, it has to be present.\n this.hostname = this.hostname || '';\n\n // if hostname begins with [ and ends with ]\n // assume that it's an IPv6 address.\n var ipv6Hostname = this.hostname[0] === '[' &&\n this.hostname[this.hostname.length - 1] === ']';\n\n // validate a little.\n if (!ipv6Hostname) {\n var hostparts = this.hostname.split(/\\./);\n for (var i = 0, l = hostparts.length; i < l; i++) {\n var part = hostparts[i];\n if (!part) continue;\n if (!part.match(hostnamePartPattern)) {\n var newpart = '';\n for (var j = 0, k = part.length; j < k; j++) {\n if (part.charCodeAt(j) > 127) {\n // we replace non-ASCII char with a temporary placeholder\n // we need this to make sure size of hostname is not\n // broken by replacing non-ASCII by nothing\n newpart += 'x';\n } else {\n newpart += part[j];\n }\n }\n // we test again with ASCII char only\n if (!newpart.match(hostnamePartPattern)) {\n var validParts = hostparts.slice(0, i);\n var notHost = hostparts.slice(i + 1);\n var bit = part.match(hostnamePartStart);\n if (bit) {\n validParts.push(bit[1]);\n notHost.unshift(bit[2]);\n }\n if (notHost.length) {\n rest = '/' + notHost.join('.') + rest;\n }\n this.hostname = validParts.join('.');\n break;\n }\n }\n }\n }\n\n if (this.hostname.length > hostnameMaxLen) {\n this.hostname = '';\n } else {\n // hostnames are always lower case.\n this.hostname = this.hostname.toLowerCase();\n }\n\n if (!ipv6Hostname) {\n // IDNA Support: Returns a punycoded representation of \"domain\".\n // It only converts parts of the domain name that\n // have non-ASCII characters, i.e. it doesn't matter if\n // you call it with a domain that already is ASCII-only.\n this.hostname = punycode.toASCII(this.hostname);\n }\n\n var p = this.port ? ':' + this.port : '';\n var h = this.hostname || '';\n this.host = h + p;\n this.href += this.host;\n\n // strip [ and ] from the hostname\n // the host field still retains them, though\n if (ipv6Hostname) {\n this.hostname = this.hostname.substr(1, this.hostname.length - 2);\n if (rest[0] !== '/') {\n rest = '/' + rest;\n }\n }\n }\n\n // now rest is set to the post-host stuff.\n // chop off any delim chars.\n if (!unsafeProtocol[lowerProto]) {\n\n // First, make 100% sure that any \"autoEscape\" chars get\n // escaped, even if encodeURIComponent doesn't think they\n // need to be.\n for (var i = 0, l = autoEscape.length; i < l; i++) {\n var ae = autoEscape[i];\n if (rest.indexOf(ae) === -1)\n continue;\n var esc = encodeURIComponent(ae);\n if (esc === ae) {\n esc = escape(ae);\n }\n rest = rest.split(ae).join(esc);\n }\n }\n\n\n // chop off from the tail first.\n var hash = rest.indexOf('#');\n if (hash !== -1) {\n // got a fragment string.\n this.hash = rest.substr(hash);\n rest = rest.slice(0, hash);\n }\n var qm = rest.indexOf('?');\n if (qm !== -1) {\n this.search = rest.substr(qm);\n this.query = rest.substr(qm + 1);\n if (parseQueryString) {\n this.query = querystring.parse(this.query);\n }\n rest = rest.slice(0, qm);\n } else if (parseQueryString) {\n // no query string, but parseQueryString still requested\n this.search = '';\n this.query = {};\n }\n if (rest) this.pathname = rest;\n if (slashedProtocol[lowerProto] &&\n this.hostname && !this.pathname) {\n this.pathname = '/';\n }\n\n //to support http.request\n if (this.pathname || this.search) {\n var p = this.pathname || '';\n var s = this.search || '';\n this.path = p + s;\n }\n\n // finally, reconstruct the href based on what has been validated.\n this.href = this.format();\n return this;\n};\n\n// format a parsed object into a url string\nfunction urlFormat(obj) {\n // ensure it's an object, and not a string url.\n // If it's an obj, this is a no-op.\n // this way, you can call url_format() on strings\n // to clean up potentially wonky urls.\n if (util.isString(obj)) obj = urlParse(obj);\n if (!(obj instanceof Url)) return Url.prototype.format.call(obj);\n return obj.format();\n}\n\nUrl.prototype.format = function() {\n var auth = this.auth || '';\n if (auth) {\n auth = encodeURIComponent(auth);\n auth = auth.replace(/%3A/i, ':');\n auth += '@';\n }\n\n var protocol = this.protocol || '',\n pathname = this.pathname || '',\n hash = this.hash || '',\n host = false,\n query = '';\n\n if (this.host) {\n host = auth + this.host;\n } else if (this.hostname) {\n host = auth + (this.hostname.indexOf(':') === -1 ?\n this.hostname :\n '[' + this.hostname + ']');\n if (this.port) {\n host += ':' + this.port;\n }\n }\n\n if (this.query &&\n util.isObject(this.query) &&\n Object.keys(this.query).length) {\n query = querystring.stringify(this.query);\n }\n\n var search = this.search || (query && ('?' + query)) || '';\n\n if (protocol && protocol.substr(-1) !== ':') protocol += ':';\n\n // only the slashedProtocols get the //. Not mailto:, xmpp:, etc.\n // unless they had them to begin with.\n if (this.slashes ||\n (!protocol || slashedProtocol[protocol]) && host !== false) {\n host = '//' + (host || '');\n if (pathname && pathname.charAt(0) !== '/') pathname = '/' + pathname;\n } else if (!host) {\n host = '';\n }\n\n if (hash && hash.charAt(0) !== '#') hash = '#' + hash;\n if (search && search.charAt(0) !== '?') search = '?' + search;\n\n pathname = pathname.replace(/[?#]/g, function(match) {\n return encodeURIComponent(match);\n });\n search = search.replace('#', '%23');\n\n return protocol + host + pathname + search + hash;\n};\n\nfunction urlResolve(source, relative) {\n return urlParse(source, false, true).resolve(relative);\n}\n\nUrl.prototype.resolve = function(relative) {\n return this.resolveObject(urlParse(relative, false, true)).format();\n};\n\nfunction urlResolveObject(source, relative) {\n if (!source) return relative;\n return urlParse(source, false, true).resolveObject(relative);\n}\n\nUrl.prototype.resolveObject = function(relative) {\n if (util.isString(relative)) {\n var rel = new Url();\n rel.parse(relative, false, true);\n relative = rel;\n }\n\n var result = new Url();\n var tkeys = Object.keys(this);\n for (var tk = 0; tk < tkeys.length; tk++) {\n var tkey = tkeys[tk];\n result[tkey] = this[tkey];\n }\n\n // hash is always overridden, no matter what.\n // even href=\"\" will remove it.\n result.hash = relative.hash;\n\n // if the relative url is empty, then there's nothing left to do here.\n if (relative.href === '') {\n result.href = result.format();\n return result;\n }\n\n // hrefs like //foo/bar always cut to the protocol.\n if (relative.slashes && !relative.protocol) {\n // take everything except the protocol from relative\n var rkeys = Object.keys(relative);\n for (var rk = 0; rk < rkeys.length; rk++) {\n var rkey = rkeys[rk];\n if (rkey !== 'protocol')\n result[rkey] = relative[rkey];\n }\n\n //urlParse appends trailing / to urls like http://www.example.com\n if (slashedProtocol[result.protocol] &&\n result.hostname && !result.pathname) {\n result.path = result.pathname = '/';\n }\n\n result.href = result.format();\n return result;\n }\n\n if (relative.protocol && relative.protocol !== result.protocol) {\n // if it's a known url protocol, then changing\n // the protocol does weird things\n // first, if it's not file:, then we MUST have a host,\n // and if there was a path\n // to begin with, then we MUST have a path.\n // if it is file:, then the host is dropped,\n // because that's known to be hostless.\n // anything else is assumed to be absolute.\n if (!slashedProtocol[relative.protocol]) {\n var keys = Object.keys(relative);\n for (var v = 0; v < keys.length; v++) {\n var k = keys[v];\n result[k] = relative[k];\n }\n result.href = result.format();\n return result;\n }\n\n result.protocol = relative.protocol;\n if (!relative.host && !hostlessProtocol[relative.protocol]) {\n var relPath = (relative.pathname || '').split('/');\n while (relPath.length && !(relative.host = relPath.shift()));\n if (!relative.host) relative.host = '';\n if (!relative.hostname) relative.hostname = '';\n if (relPath[0] !== '') relPath.unshift('');\n if (relPath.length < 2) relPath.unshift('');\n result.pathname = relPath.join('/');\n } else {\n result.pathname = relative.pathname;\n }\n result.search = relative.search;\n result.query = relative.query;\n result.host = relative.host || '';\n result.auth = relative.auth;\n result.hostname = relative.hostname || relative.host;\n result.port = relative.port;\n // to support http.request\n if (result.pathname || result.search) {\n var p = result.pathname || '';\n var s = result.search || '';\n result.path = p + s;\n }\n result.slashes = result.slashes || relative.slashes;\n result.href = result.format();\n return result;\n }\n\n var isSourceAbs = (result.pathname && result.pathname.charAt(0) === '/'),\n isRelAbs = (\n relative.host ||\n relative.pathname && relative.pathname.charAt(0) === '/'\n ),\n mustEndAbs = (isRelAbs || isSourceAbs ||\n (result.host && relative.pathname)),\n removeAllDots = mustEndAbs,\n srcPath = result.pathname && result.pathname.split('/') || [],\n relPath = relative.pathname && relative.pathname.split('/') || [],\n psychotic = result.protocol && !slashedProtocol[result.protocol];\n\n // if the url is a non-slashed url, then relative\n // links like ../.. should be able\n // to crawl up to the hostname, as well. This is strange.\n // result.protocol has already been set by now.\n // Later on, put the first path part into the host field.\n if (psychotic) {\n result.hostname = '';\n result.port = null;\n if (result.host) {\n if (srcPath[0] === '') srcPath[0] = result.host;\n else srcPath.unshift(result.host);\n }\n result.host = '';\n if (relative.protocol) {\n relative.hostname = null;\n relative.port = null;\n if (relative.host) {\n if (relPath[0] === '') relPath[0] = relative.host;\n else relPath.unshift(relative.host);\n }\n relative.host = null;\n }\n mustEndAbs = mustEndAbs && (relPath[0] === '' || srcPath[0] === '');\n }\n\n if (isRelAbs) {\n // it's absolute.\n result.host = (relative.host || relative.host === '') ?\n relative.host : result.host;\n result.hostname = (relative.hostname || relative.hostname === '') ?\n relative.hostname : result.hostname;\n result.search = relative.search;\n result.query = relative.query;\n srcPath = relPath;\n // fall through to the dot-handling below.\n } else if (relPath.length) {\n // it's relative\n // throw away the existing file, and take the new path instead.\n if (!srcPath) srcPath = [];\n srcPath.pop();\n srcPath = srcPath.concat(relPath);\n result.search = relative.search;\n result.query = relative.query;\n } else if (!util.isNullOrUndefined(relative.search)) {\n // just pull out the search.\n // like href='?foo'.\n // Put this after the other two cases because it simplifies the booleans\n if (psychotic) {\n result.hostname = result.host = srcPath.shift();\n //occationaly the auth can get stuck only in host\n //this especially happens in cases like\n //url.resolveObject('mailto:local1@domain1', 'local2@domain2')\n var authInHost = result.host && result.host.indexOf('@') > 0 ?\n result.host.split('@') : false;\n if (authInHost) {\n result.auth = authInHost.shift();\n result.host = result.hostname = authInHost.shift();\n }\n }\n result.search = relative.search;\n result.query = relative.query;\n //to support http.request\n if (!util.isNull(result.pathname) || !util.isNull(result.search)) {\n result.path = (result.pathname ? result.pathname : '') +\n (result.search ? result.search : '');\n }\n result.href = result.format();\n return result;\n }\n\n if (!srcPath.length) {\n // no path at all. easy.\n // we've already handled the other stuff above.\n result.pathname = null;\n //to support http.request\n if (result.search) {\n result.path = '/' + result.search;\n } else {\n result.path = null;\n }\n result.href = result.format();\n return result;\n }\n\n // if a url ENDs in . or .., then it must get a trailing slash.\n // however, if it ends in anything else non-slashy,\n // then it must NOT get a trailing slash.\n var last = srcPath.slice(-1)[0];\n var hasTrailingSlash = (\n (result.host || relative.host || srcPath.length > 1) &&\n (last === '.' || last === '..') || last === '');\n\n // strip single dots, resolve double dots to parent dir\n // if the path tries to go above the root, `up` ends up > 0\n var up = 0;\n for (var i = srcPath.length; i >= 0; i--) {\n last = srcPath[i];\n if (last === '.') {\n srcPath.splice(i, 1);\n } else if (last === '..') {\n srcPath.splice(i, 1);\n up++;\n } else if (up) {\n srcPath.splice(i, 1);\n up--;\n }\n }\n\n // if the path is allowed to go above the root, restore leading ..s\n if (!mustEndAbs && !removeAllDots) {\n for (; up--; up) {\n srcPath.unshift('..');\n }\n }\n\n if (mustEndAbs && srcPath[0] !== '' &&\n (!srcPath[0] || srcPath[0].charAt(0) !== '/')) {\n srcPath.unshift('');\n }\n\n if (hasTrailingSlash && (srcPath.join('/').substr(-1) !== '/')) {\n srcPath.push('');\n }\n\n var isAbsolute = srcPath[0] === '' ||\n (srcPath[0] && srcPath[0].charAt(0) === '/');\n\n // put the host back\n if (psychotic) {\n result.hostname = result.host = isAbsolute ? '' :\n srcPath.length ? srcPath.shift() : '';\n //occationaly the auth can get stuck only in host\n //this especially happens in cases like\n //url.resolveObject('mailto:local1@domain1', 'local2@domain2')\n var authInHost = result.host && result.host.indexOf('@') > 0 ?\n result.host.split('@') : false;\n if (authInHost) {\n result.auth = authInHost.shift();\n result.host = result.hostname = authInHost.shift();\n }\n }\n\n mustEndAbs = mustEndAbs || (result.host && srcPath.length);\n\n if (mustEndAbs && !isAbsolute) {\n srcPath.unshift('');\n }\n\n if (!srcPath.length) {\n result.pathname = null;\n result.path = null;\n } else {\n result.pathname = srcPath.join('/');\n }\n\n //to support request.http\n if (!util.isNull(result.pathname) || !util.isNull(result.search)) {\n result.path = (result.pathname ? result.pathname : '') +\n (result.search ? result.search : '');\n }\n result.auth = relative.auth || result.auth;\n result.slashes = result.slashes || relative.slashes;\n result.href = result.format();\n return result;\n};\n\nUrl.prototype.parseHost = function() {\n var host = this.host;\n var port = portPattern.exec(host);\n if (port) {\n port = port[0];\n if (port !== ':') {\n this.port = port.substr(1);\n }\n host = host.substr(0, host.length - port.length);\n }\n if (host) this.hostname = host;\n};\n","'use strict';\n\nmodule.exports = {\n isString: function(arg) {\n return typeof(arg) === 'string';\n },\n isObject: function(arg) {\n return typeof(arg) === 'object' && arg !== null;\n },\n isNull: function(arg) {\n return arg === null;\n },\n isNullOrUndefined: function(arg) {\n return arg == null;\n }\n};\n","\n/**\n * Module exports.\n */\n\nmodule.exports = deprecate;\n\n/**\n * Mark that a method should not be used.\n * Returns a modified function which warns once by default.\n *\n * If `localStorage.noDeprecation = true` is set, then it is a no-op.\n *\n * If `localStorage.throwDeprecation = true` is set, then deprecated functions\n * will throw an Error when invoked.\n *\n * If `localStorage.traceDeprecation = true` is set, then deprecated functions\n * will invoke `console.trace()` instead of `console.error()`.\n *\n * @param {Function} fn - the function to deprecate\n * @param {String} msg - the string to print to the console when `fn` is invoked\n * @returns {Function} a new \"deprecated\" version of `fn`\n * @api public\n */\n\nfunction deprecate (fn, msg) {\n if (config('noDeprecation')) {\n return fn;\n }\n\n var warned = false;\n function deprecated() {\n if (!warned) {\n if (config('throwDeprecation')) {\n throw new Error(msg);\n } else if (config('traceDeprecation')) {\n console.trace(msg);\n } else {\n console.warn(msg);\n }\n warned = true;\n }\n return fn.apply(this, arguments);\n }\n\n return deprecated;\n}\n\n/**\n * Checks `localStorage` for boolean values for the given `name`.\n *\n * @param {String} name\n * @returns {Boolean}\n * @api private\n */\n\nfunction config (name) {\n // accessing global.localStorage can trigger a DOMException in sandboxed iframes\n try {\n if (!global.localStorage) return false;\n } catch (_) {\n return false;\n }\n var val = global.localStorage[name];\n if (null == val) return false;\n return String(val).toLowerCase() === 'true';\n}\n","module.exports = function isBuffer(arg) {\n return arg && typeof arg === 'object'\n && typeof arg.copy === 'function'\n && typeof arg.fill === 'function'\n && typeof arg.readUInt8 === 'function';\n}","// Currently in sync with Node.js lib/internal/util/types.js\n// https://github.com/nodejs/node/commit/112cc7c27551254aa2b17098fb774867f05ed0d9\n\n'use strict';\n\nvar isArgumentsObject = require('is-arguments');\nvar isGeneratorFunction = require('is-generator-function');\nvar whichTypedArray = require('which-typed-array');\nvar isTypedArray = require('is-typed-array');\n\nfunction uncurryThis(f) {\n return f.call.bind(f);\n}\n\nvar BigIntSupported = typeof BigInt !== 'undefined';\nvar SymbolSupported = typeof Symbol !== 'undefined';\n\nvar ObjectToString = uncurryThis(Object.prototype.toString);\n\nvar numberValue = uncurryThis(Number.prototype.valueOf);\nvar stringValue = uncurryThis(String.prototype.valueOf);\nvar booleanValue = uncurryThis(Boolean.prototype.valueOf);\n\nif (BigIntSupported) {\n var bigIntValue = uncurryThis(BigInt.prototype.valueOf);\n}\n\nif (SymbolSupported) {\n var symbolValue = uncurryThis(Symbol.prototype.valueOf);\n}\n\nfunction checkBoxedPrimitive(value, prototypeValueOf) {\n if (typeof value !== 'object') {\n return false;\n }\n try {\n prototypeValueOf(value);\n return true;\n } catch(e) {\n return false;\n }\n}\n\nexports.isArgumentsObject = isArgumentsObject;\nexports.isGeneratorFunction = isGeneratorFunction;\nexports.isTypedArray = isTypedArray;\n\n// Taken from here and modified for better browser support\n// https://github.com/sindresorhus/p-is-promise/blob/cda35a513bda03f977ad5cde3a079d237e82d7ef/index.js\nfunction isPromise(input) {\n\treturn (\n\t\t(\n\t\t\ttypeof Promise !== 'undefined' &&\n\t\t\tinput instanceof Promise\n\t\t) ||\n\t\t(\n\t\t\tinput !== null &&\n\t\t\ttypeof input === 'object' &&\n\t\t\ttypeof input.then === 'function' &&\n\t\t\ttypeof input.catch === 'function'\n\t\t)\n\t);\n}\nexports.isPromise = isPromise;\n\nfunction isArrayBufferView(value) {\n if (typeof ArrayBuffer !== 'undefined' && ArrayBuffer.isView) {\n return ArrayBuffer.isView(value);\n }\n\n return (\n isTypedArray(value) ||\n isDataView(value)\n );\n}\nexports.isArrayBufferView = isArrayBufferView;\n\n\nfunction isUint8Array(value) {\n return whichTypedArray(value) === 'Uint8Array';\n}\nexports.isUint8Array = isUint8Array;\n\nfunction isUint8ClampedArray(value) {\n return whichTypedArray(value) === 'Uint8ClampedArray';\n}\nexports.isUint8ClampedArray = isUint8ClampedArray;\n\nfunction isUint16Array(value) {\n return whichTypedArray(value) === 'Uint16Array';\n}\nexports.isUint16Array = isUint16Array;\n\nfunction isUint32Array(value) {\n return whichTypedArray(value) === 'Uint32Array';\n}\nexports.isUint32Array = isUint32Array;\n\nfunction isInt8Array(value) {\n return whichTypedArray(value) === 'Int8Array';\n}\nexports.isInt8Array = isInt8Array;\n\nfunction isInt16Array(value) {\n return whichTypedArray(value) === 'Int16Array';\n}\nexports.isInt16Array = isInt16Array;\n\nfunction isInt32Array(value) {\n return whichTypedArray(value) === 'Int32Array';\n}\nexports.isInt32Array = isInt32Array;\n\nfunction isFloat32Array(value) {\n return whichTypedArray(value) === 'Float32Array';\n}\nexports.isFloat32Array = isFloat32Array;\n\nfunction isFloat64Array(value) {\n return whichTypedArray(value) === 'Float64Array';\n}\nexports.isFloat64Array = isFloat64Array;\n\nfunction isBigInt64Array(value) {\n return whichTypedArray(value) === 'BigInt64Array';\n}\nexports.isBigInt64Array = isBigInt64Array;\n\nfunction isBigUint64Array(value) {\n return whichTypedArray(value) === 'BigUint64Array';\n}\nexports.isBigUint64Array = isBigUint64Array;\n\nfunction isMapToString(value) {\n return ObjectToString(value) === '[object Map]';\n}\nisMapToString.working = (\n typeof Map !== 'undefined' &&\n isMapToString(new Map())\n);\n\nfunction isMap(value) {\n if (typeof Map === 'undefined') {\n return false;\n }\n\n return isMapToString.working\n ? isMapToString(value)\n : value instanceof Map;\n}\nexports.isMap = isMap;\n\nfunction isSetToString(value) {\n return ObjectToString(value) === '[object Set]';\n}\nisSetToString.working = (\n typeof Set !== 'undefined' &&\n isSetToString(new Set())\n);\nfunction isSet(value) {\n if (typeof Set === 'undefined') {\n return false;\n }\n\n return isSetToString.working\n ? isSetToString(value)\n : value instanceof Set;\n}\nexports.isSet = isSet;\n\nfunction isWeakMapToString(value) {\n return ObjectToString(value) === '[object WeakMap]';\n}\nisWeakMapToString.working = (\n typeof WeakMap !== 'undefined' &&\n isWeakMapToString(new WeakMap())\n);\nfunction isWeakMap(value) {\n if (typeof WeakMap === 'undefined') {\n return false;\n }\n\n return isWeakMapToString.working\n ? isWeakMapToString(value)\n : value instanceof WeakMap;\n}\nexports.isWeakMap = isWeakMap;\n\nfunction isWeakSetToString(value) {\n return ObjectToString(value) === '[object WeakSet]';\n}\nisWeakSetToString.working = (\n typeof WeakSet !== 'undefined' &&\n isWeakSetToString(new WeakSet())\n);\nfunction isWeakSet(value) {\n return isWeakSetToString(value);\n}\nexports.isWeakSet = isWeakSet;\n\nfunction isArrayBufferToString(value) {\n return ObjectToString(value) === '[object ArrayBuffer]';\n}\nisArrayBufferToString.working = (\n typeof ArrayBuffer !== 'undefined' &&\n isArrayBufferToString(new ArrayBuffer())\n);\nfunction isArrayBuffer(value) {\n if (typeof ArrayBuffer === 'undefined') {\n return false;\n }\n\n return isArrayBufferToString.working\n ? isArrayBufferToString(value)\n : value instanceof ArrayBuffer;\n}\nexports.isArrayBuffer = isArrayBuffer;\n\nfunction isDataViewToString(value) {\n return ObjectToString(value) === '[object DataView]';\n}\nisDataViewToString.working = (\n typeof ArrayBuffer !== 'undefined' &&\n typeof DataView !== 'undefined' &&\n isDataViewToString(new DataView(new ArrayBuffer(1), 0, 1))\n);\nfunction isDataView(value) {\n if (typeof DataView === 'undefined') {\n return false;\n }\n\n return isDataViewToString.working\n ? isDataViewToString(value)\n : value instanceof DataView;\n}\nexports.isDataView = isDataView;\n\n// Store a copy of SharedArrayBuffer in case it's deleted elsewhere\nvar SharedArrayBufferCopy = typeof SharedArrayBuffer !== 'undefined' ? SharedArrayBuffer : undefined;\nfunction isSharedArrayBufferToString(value) {\n return ObjectToString(value) === '[object SharedArrayBuffer]';\n}\nfunction isSharedArrayBuffer(value) {\n if (typeof SharedArrayBufferCopy === 'undefined') {\n return false;\n }\n\n if (typeof isSharedArrayBufferToString.working === 'undefined') {\n isSharedArrayBufferToString.working = isSharedArrayBufferToString(new SharedArrayBufferCopy());\n }\n\n return isSharedArrayBufferToString.working\n ? isSharedArrayBufferToString(value)\n : value instanceof SharedArrayBufferCopy;\n}\nexports.isSharedArrayBuffer = isSharedArrayBuffer;\n\nfunction isAsyncFunction(value) {\n return ObjectToString(value) === '[object AsyncFunction]';\n}\nexports.isAsyncFunction = isAsyncFunction;\n\nfunction isMapIterator(value) {\n return ObjectToString(value) === '[object Map Iterator]';\n}\nexports.isMapIterator = isMapIterator;\n\nfunction isSetIterator(value) {\n return ObjectToString(value) === '[object Set Iterator]';\n}\nexports.isSetIterator = isSetIterator;\n\nfunction isGeneratorObject(value) {\n return ObjectToString(value) === '[object Generator]';\n}\nexports.isGeneratorObject = isGeneratorObject;\n\nfunction isWebAssemblyCompiledModule(value) {\n return ObjectToString(value) === '[object WebAssembly.Module]';\n}\nexports.isWebAssemblyCompiledModule = isWebAssemblyCompiledModule;\n\nfunction isNumberObject(value) {\n return checkBoxedPrimitive(value, numberValue);\n}\nexports.isNumberObject = isNumberObject;\n\nfunction isStringObject(value) {\n return checkBoxedPrimitive(value, stringValue);\n}\nexports.isStringObject = isStringObject;\n\nfunction isBooleanObject(value) {\n return checkBoxedPrimitive(value, booleanValue);\n}\nexports.isBooleanObject = isBooleanObject;\n\nfunction isBigIntObject(value) {\n return BigIntSupported && checkBoxedPrimitive(value, bigIntValue);\n}\nexports.isBigIntObject = isBigIntObject;\n\nfunction isSymbolObject(value) {\n return SymbolSupported && checkBoxedPrimitive(value, symbolValue);\n}\nexports.isSymbolObject = isSymbolObject;\n\nfunction isBoxedPrimitive(value) {\n return (\n isNumberObject(value) ||\n isStringObject(value) ||\n isBooleanObject(value) ||\n isBigIntObject(value) ||\n isSymbolObject(value)\n );\n}\nexports.isBoxedPrimitive = isBoxedPrimitive;\n\nfunction isAnyArrayBuffer(value) {\n return typeof Uint8Array !== 'undefined' && (\n isArrayBuffer(value) ||\n isSharedArrayBuffer(value)\n );\n}\nexports.isAnyArrayBuffer = isAnyArrayBuffer;\n\n['isProxy', 'isExternal', 'isModuleNamespaceObject'].forEach(function(method) {\n Object.defineProperty(exports, method, {\n enumerable: false,\n value: function() {\n throw new Error(method + ' is not supported in userland');\n }\n });\n});\n","// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n\nvar getOwnPropertyDescriptors = Object.getOwnPropertyDescriptors ||\n function getOwnPropertyDescriptors(obj) {\n var keys = Object.keys(obj);\n var descriptors = {};\n for (var i = 0; i < keys.length; i++) {\n descriptors[keys[i]] = Object.getOwnPropertyDescriptor(obj, keys[i]);\n }\n return descriptors;\n };\n\nvar formatRegExp = /%[sdj%]/g;\nexports.format = function(f) {\n if (!isString(f)) {\n var objects = [];\n for (var i = 0; i < arguments.length; i++) {\n objects.push(inspect(arguments[i]));\n }\n return objects.join(' ');\n }\n\n var i = 1;\n var args = arguments;\n var len = args.length;\n var str = String(f).replace(formatRegExp, function(x) {\n if (x === '%%') return '%';\n if (i >= len) return x;\n switch (x) {\n case '%s': return String(args[i++]);\n case '%d': return Number(args[i++]);\n case '%j':\n try {\n return JSON.stringify(args[i++]);\n } catch (_) {\n return '[Circular]';\n }\n default:\n return x;\n }\n });\n for (var x = args[i]; i < len; x = args[++i]) {\n if (isNull(x) || !isObject(x)) {\n str += ' ' + x;\n } else {\n str += ' ' + inspect(x);\n }\n }\n return str;\n};\n\n\n// Mark that a method should not be used.\n// Returns a modified function which warns once by default.\n// If --no-deprecation is set, then it is a no-op.\nexports.deprecate = function(fn, msg) {\n if (typeof process !== 'undefined' && process.noDeprecation === true) {\n return fn;\n }\n\n // Allow for deprecating things in the process of starting up.\n if (typeof process === 'undefined') {\n return function() {\n return exports.deprecate(fn, msg).apply(this, arguments);\n };\n }\n\n var warned = false;\n function deprecated() {\n if (!warned) {\n if (process.throwDeprecation) {\n throw new Error(msg);\n } else if (process.traceDeprecation) {\n console.trace(msg);\n } else {\n console.error(msg);\n }\n warned = true;\n }\n return fn.apply(this, arguments);\n }\n\n return deprecated;\n};\n\n\nvar debugs = {};\nvar debugEnvRegex = /^$/;\n\nif (process.env.NODE_DEBUG) {\n var debugEnv = process.env.NODE_DEBUG;\n debugEnv = debugEnv.replace(/[|\\\\{}()[\\]^$+?.]/g, '\\\\$&')\n .replace(/\\*/g, '.*')\n .replace(/,/g, '$|^')\n .toUpperCase();\n debugEnvRegex = new RegExp('^' + debugEnv + '$', 'i');\n}\nexports.debuglog = function(set) {\n set = set.toUpperCase();\n if (!debugs[set]) {\n if (debugEnvRegex.test(set)) {\n var pid = process.pid;\n debugs[set] = function() {\n var msg = exports.format.apply(exports, arguments);\n console.error('%s %d: %s', set, pid, msg);\n };\n } else {\n debugs[set] = function() {};\n }\n }\n return debugs[set];\n};\n\n\n/**\n * Echos the value of a value. Trys to print the value out\n * in the best way possible given the different types.\n *\n * @param {Object} obj The object to print out.\n * @param {Object} opts Optional options object that alters the output.\n */\n/* legacy: obj, showHidden, depth, colors*/\nfunction inspect(obj, opts) {\n // default options\n var ctx = {\n seen: [],\n stylize: stylizeNoColor\n };\n // legacy...\n if (arguments.length >= 3) ctx.depth = arguments[2];\n if (arguments.length >= 4) ctx.colors = arguments[3];\n if (isBoolean(opts)) {\n // legacy...\n ctx.showHidden = opts;\n } else if (opts) {\n // got an \"options\" object\n exports._extend(ctx, opts);\n }\n // set default options\n if (isUndefined(ctx.showHidden)) ctx.showHidden = false;\n if (isUndefined(ctx.depth)) ctx.depth = 2;\n if (isUndefined(ctx.colors)) ctx.colors = false;\n if (isUndefined(ctx.customInspect)) ctx.customInspect = true;\n if (ctx.colors) ctx.stylize = stylizeWithColor;\n return formatValue(ctx, obj, ctx.depth);\n}\nexports.inspect = inspect;\n\n\n// http://en.wikipedia.org/wiki/ANSI_escape_code#graphics\ninspect.colors = {\n 'bold' : [1, 22],\n 'italic' : [3, 23],\n 'underline' : [4, 24],\n 'inverse' : [7, 27],\n 'white' : [37, 39],\n 'grey' : [90, 39],\n 'black' : [30, 39],\n 'blue' : [34, 39],\n 'cyan' : [36, 39],\n 'green' : [32, 39],\n 'magenta' : [35, 39],\n 'red' : [31, 39],\n 'yellow' : [33, 39]\n};\n\n// Don't use 'blue' not visible on cmd.exe\ninspect.styles = {\n 'special': 'cyan',\n 'number': 'yellow',\n 'boolean': 'yellow',\n 'undefined': 'grey',\n 'null': 'bold',\n 'string': 'green',\n 'date': 'magenta',\n // \"name\": intentionally not styling\n 'regexp': 'red'\n};\n\n\nfunction stylizeWithColor(str, styleType) {\n var style = inspect.styles[styleType];\n\n if (style) {\n return '\\u001b[' + inspect.colors[style][0] + 'm' + str +\n '\\u001b[' + inspect.colors[style][1] + 'm';\n } else {\n return str;\n }\n}\n\n\nfunction stylizeNoColor(str, styleType) {\n return str;\n}\n\n\nfunction arrayToHash(array) {\n var hash = {};\n\n array.forEach(function(val, idx) {\n hash[val] = true;\n });\n\n return hash;\n}\n\n\nfunction formatValue(ctx, value, recurseTimes) {\n // Provide a hook for user-specified inspect functions.\n // Check that value is an object with an inspect function on it\n if (ctx.customInspect &&\n value &&\n isFunction(value.inspect) &&\n // Filter out the util module, it's inspect function is special\n value.inspect !== exports.inspect &&\n // Also filter out any prototype objects using the circular check.\n !(value.constructor && value.constructor.prototype === value)) {\n var ret = value.inspect(recurseTimes, ctx);\n if (!isString(ret)) {\n ret = formatValue(ctx, ret, recurseTimes);\n }\n return ret;\n }\n\n // Primitive types cannot have properties\n var primitive = formatPrimitive(ctx, value);\n if (primitive) {\n return primitive;\n }\n\n // Look up the keys of the object.\n var keys = Object.keys(value);\n var visibleKeys = arrayToHash(keys);\n\n if (ctx.showHidden) {\n keys = Object.getOwnPropertyNames(value);\n }\n\n // IE doesn't make error fields non-enumerable\n // http://msdn.microsoft.com/en-us/library/ie/dww52sbt(v=vs.94).aspx\n if (isError(value)\n && (keys.indexOf('message') >= 0 || keys.indexOf('description') >= 0)) {\n return formatError(value);\n }\n\n // Some type of object without properties can be shortcutted.\n if (keys.length === 0) {\n if (isFunction(value)) {\n var name = value.name ? ': ' + value.name : '';\n return ctx.stylize('[Function' + name + ']', 'special');\n }\n if (isRegExp(value)) {\n return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');\n }\n if (isDate(value)) {\n return ctx.stylize(Date.prototype.toString.call(value), 'date');\n }\n if (isError(value)) {\n return formatError(value);\n }\n }\n\n var base = '', array = false, braces = ['{', '}'];\n\n // Make Array say that they are Array\n if (isArray(value)) {\n array = true;\n braces = ['[', ']'];\n }\n\n // Make functions say that they are functions\n if (isFunction(value)) {\n var n = value.name ? ': ' + value.name : '';\n base = ' [Function' + n + ']';\n }\n\n // Make RegExps say that they are RegExps\n if (isRegExp(value)) {\n base = ' ' + RegExp.prototype.toString.call(value);\n }\n\n // Make dates with properties first say the date\n if (isDate(value)) {\n base = ' ' + Date.prototype.toUTCString.call(value);\n }\n\n // Make error with message first say the error\n if (isError(value)) {\n base = ' ' + formatError(value);\n }\n\n if (keys.length === 0 && (!array || value.length == 0)) {\n return braces[0] + base + braces[1];\n }\n\n if (recurseTimes < 0) {\n if (isRegExp(value)) {\n return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');\n } else {\n return ctx.stylize('[Object]', 'special');\n }\n }\n\n ctx.seen.push(value);\n\n var output;\n if (array) {\n output = formatArray(ctx, value, recurseTimes, visibleKeys, keys);\n } else {\n output = keys.map(function(key) {\n return formatProperty(ctx, value, recurseTimes, visibleKeys, key, array);\n });\n }\n\n ctx.seen.pop();\n\n return reduceToSingleString(output, base, braces);\n}\n\n\nfunction formatPrimitive(ctx, value) {\n if (isUndefined(value))\n return ctx.stylize('undefined', 'undefined');\n if (isString(value)) {\n var simple = '\\'' + JSON.stringify(value).replace(/^\"|\"$/g, '')\n .replace(/'/g, \"\\\\'\")\n .replace(/\\\\\"/g, '\"') + '\\'';\n return ctx.stylize(simple, 'string');\n }\n if (isNumber(value))\n return ctx.stylize('' + value, 'number');\n if (isBoolean(value))\n return ctx.stylize('' + value, 'boolean');\n // For some reason typeof null is \"object\", so special case here.\n if (isNull(value))\n return ctx.stylize('null', 'null');\n}\n\n\nfunction formatError(value) {\n return '[' + Error.prototype.toString.call(value) + ']';\n}\n\n\nfunction formatArray(ctx, value, recurseTimes, visibleKeys, keys) {\n var output = [];\n for (var i = 0, l = value.length; i < l; ++i) {\n if (hasOwnProperty(value, String(i))) {\n output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,\n String(i), true));\n } else {\n output.push('');\n }\n }\n keys.forEach(function(key) {\n if (!key.match(/^\\d+$/)) {\n output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,\n key, true));\n }\n });\n return output;\n}\n\n\nfunction formatProperty(ctx, value, recurseTimes, visibleKeys, key, array) {\n var name, str, desc;\n desc = Object.getOwnPropertyDescriptor(value, key) || { value: value[key] };\n if (desc.get) {\n if (desc.set) {\n str = ctx.stylize('[Getter/Setter]', 'special');\n } else {\n str = ctx.stylize('[Getter]', 'special');\n }\n } else {\n if (desc.set) {\n str = ctx.stylize('[Setter]', 'special');\n }\n }\n if (!hasOwnProperty(visibleKeys, key)) {\n name = '[' + key + ']';\n }\n if (!str) {\n if (ctx.seen.indexOf(desc.value) < 0) {\n if (isNull(recurseTimes)) {\n str = formatValue(ctx, desc.value, null);\n } else {\n str = formatValue(ctx, desc.value, recurseTimes - 1);\n }\n if (str.indexOf('\\n') > -1) {\n if (array) {\n str = str.split('\\n').map(function(line) {\n return ' ' + line;\n }).join('\\n').substr(2);\n } else {\n str = '\\n' + str.split('\\n').map(function(line) {\n return ' ' + line;\n }).join('\\n');\n }\n }\n } else {\n str = ctx.stylize('[Circular]', 'special');\n }\n }\n if (isUndefined(name)) {\n if (array && key.match(/^\\d+$/)) {\n return str;\n }\n name = JSON.stringify('' + key);\n if (name.match(/^\"([a-zA-Z_][a-zA-Z_0-9]*)\"$/)) {\n name = name.substr(1, name.length - 2);\n name = ctx.stylize(name, 'name');\n } else {\n name = name.replace(/'/g, \"\\\\'\")\n .replace(/\\\\\"/g, '\"')\n .replace(/(^\"|\"$)/g, \"'\");\n name = ctx.stylize(name, 'string');\n }\n }\n\n return name + ': ' + str;\n}\n\n\nfunction reduceToSingleString(output, base, braces) {\n var numLinesEst = 0;\n var length = output.reduce(function(prev, cur) {\n numLinesEst++;\n if (cur.indexOf('\\n') >= 0) numLinesEst++;\n return prev + cur.replace(/\\u001b\\[\\d\\d?m/g, '').length + 1;\n }, 0);\n\n if (length > 60) {\n return braces[0] +\n (base === '' ? '' : base + '\\n ') +\n ' ' +\n output.join(',\\n ') +\n ' ' +\n braces[1];\n }\n\n return braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1];\n}\n\n\n// NOTE: These type checking functions intentionally don't use `instanceof`\n// because it is fragile and can be easily faked with `Object.create()`.\nexports.types = require('./support/types');\n\nfunction isArray(ar) {\n return Array.isArray(ar);\n}\nexports.isArray = isArray;\n\nfunction isBoolean(arg) {\n return typeof arg === 'boolean';\n}\nexports.isBoolean = isBoolean;\n\nfunction isNull(arg) {\n return arg === null;\n}\nexports.isNull = isNull;\n\nfunction isNullOrUndefined(arg) {\n return arg == null;\n}\nexports.isNullOrUndefined = isNullOrUndefined;\n\nfunction isNumber(arg) {\n return typeof arg === 'number';\n}\nexports.isNumber = isNumber;\n\nfunction isString(arg) {\n return typeof arg === 'string';\n}\nexports.isString = isString;\n\nfunction isSymbol(arg) {\n return typeof arg === 'symbol';\n}\nexports.isSymbol = isSymbol;\n\nfunction isUndefined(arg) {\n return arg === void 0;\n}\nexports.isUndefined = isUndefined;\n\nfunction isRegExp(re) {\n return isObject(re) && objectToString(re) === '[object RegExp]';\n}\nexports.isRegExp = isRegExp;\nexports.types.isRegExp = isRegExp;\n\nfunction isObject(arg) {\n return typeof arg === 'object' && arg !== null;\n}\nexports.isObject = isObject;\n\nfunction isDate(d) {\n return isObject(d) && objectToString(d) === '[object Date]';\n}\nexports.isDate = isDate;\nexports.types.isDate = isDate;\n\nfunction isError(e) {\n return isObject(e) &&\n (objectToString(e) === '[object Error]' || e instanceof Error);\n}\nexports.isError = isError;\nexports.types.isNativeError = isError;\n\nfunction isFunction(arg) {\n return typeof arg === 'function';\n}\nexports.isFunction = isFunction;\n\nfunction isPrimitive(arg) {\n return arg === null ||\n typeof arg === 'boolean' ||\n typeof arg === 'number' ||\n typeof arg === 'string' ||\n typeof arg === 'symbol' || // ES6 symbol\n typeof arg === 'undefined';\n}\nexports.isPrimitive = isPrimitive;\n\nexports.isBuffer = require('./support/isBuffer');\n\nfunction objectToString(o) {\n return Object.prototype.toString.call(o);\n}\n\n\nfunction pad(n) {\n return n < 10 ? '0' + n.toString(10) : n.toString(10);\n}\n\n\nvar months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep',\n 'Oct', 'Nov', 'Dec'];\n\n// 26 Feb 16:19:34\nfunction timestamp() {\n var d = new Date();\n var time = [pad(d.getHours()),\n pad(d.getMinutes()),\n pad(d.getSeconds())].join(':');\n return [d.getDate(), months[d.getMonth()], time].join(' ');\n}\n\n\n// log is just a thin wrapper to console.log that prepends a timestamp\nexports.log = function() {\n console.log('%s - %s', timestamp(), exports.format.apply(exports, arguments));\n};\n\n\n/**\n * Inherit the prototype methods from one constructor into another.\n *\n * The Function.prototype.inherits from lang.js rewritten as a standalone\n * function (not on Function.prototype). NOTE: If this file is to be loaded\n * during bootstrapping this function needs to be rewritten using some native\n * functions as prototype setup using normal JavaScript does not work as\n * expected during bootstrapping (see mirror.js in r114903).\n *\n * @param {function} ctor Constructor function which needs to inherit the\n * prototype.\n * @param {function} superCtor Constructor function to inherit prototype from.\n */\nexports.inherits = require('inherits');\n\nexports._extend = function(origin, add) {\n // Don't do anything if add isn't an object\n if (!add || !isObject(add)) return origin;\n\n var keys = Object.keys(add);\n var i = keys.length;\n while (i--) {\n origin[keys[i]] = add[keys[i]];\n }\n return origin;\n};\n\nfunction hasOwnProperty(obj, prop) {\n return Object.prototype.hasOwnProperty.call(obj, prop);\n}\n\nvar kCustomPromisifiedSymbol = typeof Symbol !== 'undefined' ? Symbol('util.promisify.custom') : undefined;\n\nexports.promisify = function promisify(original) {\n if (typeof original !== 'function')\n throw new TypeError('The \"original\" argument must be of type Function');\n\n if (kCustomPromisifiedSymbol && original[kCustomPromisifiedSymbol]) {\n var fn = original[kCustomPromisifiedSymbol];\n if (typeof fn !== 'function') {\n throw new TypeError('The \"util.promisify.custom\" argument must be of type Function');\n }\n Object.defineProperty(fn, kCustomPromisifiedSymbol, {\n value: fn, enumerable: false, writable: false, configurable: true\n });\n return fn;\n }\n\n function fn() {\n var promiseResolve, promiseReject;\n var promise = new Promise(function (resolve, reject) {\n promiseResolve = resolve;\n promiseReject = reject;\n });\n\n var args = [];\n for (var i = 0; i < arguments.length; i++) {\n args.push(arguments[i]);\n }\n args.push(function (err, value) {\n if (err) {\n promiseReject(err);\n } else {\n promiseResolve(value);\n }\n });\n\n try {\n original.apply(this, args);\n } catch (err) {\n promiseReject(err);\n }\n\n return promise;\n }\n\n Object.setPrototypeOf(fn, Object.getPrototypeOf(original));\n\n if (kCustomPromisifiedSymbol) Object.defineProperty(fn, kCustomPromisifiedSymbol, {\n value: fn, enumerable: false, writable: false, configurable: true\n });\n return Object.defineProperties(\n fn,\n getOwnPropertyDescriptors(original)\n );\n}\n\nexports.promisify.custom = kCustomPromisifiedSymbol\n\nfunction callbackifyOnRejected(reason, cb) {\n // `!reason` guard inspired by bluebird (Ref: https://goo.gl/t5IS6M).\n // Because `null` is a special error value in callbacks which means \"no error\n // occurred\", we error-wrap so the callback consumer can distinguish between\n // \"the promise rejected with null\" or \"the promise fulfilled with undefined\".\n if (!reason) {\n var newReason = new Error('Promise was rejected with a falsy value');\n newReason.reason = reason;\n reason = newReason;\n }\n return cb(reason);\n}\n\nfunction callbackify(original) {\n if (typeof original !== 'function') {\n throw new TypeError('The \"original\" argument must be of type Function');\n }\n\n // We DO NOT return the promise as it gives the user a false sense that\n // the promise is actually somehow related to the callback's execution\n // and that the callback throwing will reject the promise.\n function callbackified() {\n var args = [];\n for (var i = 0; i < arguments.length; i++) {\n args.push(arguments[i]);\n }\n\n var maybeCb = args.pop();\n if (typeof maybeCb !== 'function') {\n throw new TypeError('The last argument must be of type Function');\n }\n var self = this;\n var cb = function() {\n return maybeCb.apply(self, arguments);\n };\n // In true node style we process the callback on `nextTick` with all the\n // implications (stack, `uncaughtException`, `async_hooks`)\n original.apply(this, args)\n .then(function(ret) { process.nextTick(cb.bind(null, null, ret)) },\n function(rej) { process.nextTick(callbackifyOnRejected.bind(null, rej, cb)) });\n }\n\n Object.setPrototypeOf(callbackified, Object.getPrototypeOf(original));\n Object.defineProperties(callbackified,\n getOwnPropertyDescriptors(original));\n return callbackified;\n}\nexports.callbackify = callbackify;\n","'use strict';\n\nvar forEach = require('for-each');\nvar availableTypedArrays = require('available-typed-arrays');\nvar callBound = require('call-bind/callBound');\n\nvar $toString = callBound('Object.prototype.toString');\nvar hasToStringTag = require('has-tostringtag/shams')();\n\nvar g = typeof globalThis === 'undefined' ? global : globalThis;\nvar typedArrays = availableTypedArrays();\n\nvar $slice = callBound('String.prototype.slice');\nvar toStrTags = {};\nvar gOPD = require('es-abstract/helpers/getOwnPropertyDescriptor');\nvar getPrototypeOf = Object.getPrototypeOf; // require('getprototypeof');\nif (hasToStringTag && gOPD && getPrototypeOf) {\n\tforEach(typedArrays, function (typedArray) {\n\t\tif (typeof g[typedArray] === 'function') {\n\t\t\tvar arr = new g[typedArray]();\n\t\t\tif (Symbol.toStringTag in arr) {\n\t\t\t\tvar proto = getPrototypeOf(arr);\n\t\t\t\tvar descriptor = gOPD(proto, Symbol.toStringTag);\n\t\t\t\tif (!descriptor) {\n\t\t\t\t\tvar superProto = getPrototypeOf(proto);\n\t\t\t\t\tdescriptor = gOPD(superProto, Symbol.toStringTag);\n\t\t\t\t}\n\t\t\t\ttoStrTags[typedArray] = descriptor.get;\n\t\t\t}\n\t\t}\n\t});\n}\n\nvar tryTypedArrays = function tryAllTypedArrays(value) {\n\tvar foundName = false;\n\tforEach(toStrTags, function (getter, typedArray) {\n\t\tif (!foundName) {\n\t\t\ttry {\n\t\t\t\tvar name = getter.call(value);\n\t\t\t\tif (name === typedArray) {\n\t\t\t\t\tfoundName = name;\n\t\t\t\t}\n\t\t\t} catch (e) {}\n\t\t}\n\t});\n\treturn foundName;\n};\n\nvar isTypedArray = require('is-typed-array');\n\nmodule.exports = function whichTypedArray(value) {\n\tif (!isTypedArray(value)) { return false; }\n\tif (!hasToStringTag || !(Symbol.toStringTag in value)) { return $slice($toString(value), 8, -1); }\n\treturn tryTypedArrays(value);\n};\n","module.exports = extend\n\nvar hasOwnProperty = Object.prototype.hasOwnProperty;\n\nfunction extend() {\n var target = {}\n\n for (var i = 0; i < arguments.length; i++) {\n var source = arguments[i]\n\n for (var key in source) {\n if (hasOwnProperty.call(source, key)) {\n target[key] = source[key]\n }\n }\n }\n\n return target\n}\n","'use strict';\n\nObject.defineProperty(exports, '__esModule', { value: true });\n\nvar valid = require('semver/functions/valid.js');\nvar major = require('semver/functions/major.js');\n\nfunction _interopDefaultLegacy (e) { return e && typeof e === 'object' && 'default' in e ? 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Only returns true\n * for plain JavaScript objects.\n */\nfunction isPlainObject(obj) {\n return _toString.call(obj) === '[object Object]';\n}\nfunction isRegExp(v) {\n return _toString.call(v) === '[object RegExp]';\n}\n/**\n * Check if val is a valid array index.\n */\nfunction isValidArrayIndex(val) {\n var n = parseFloat(String(val));\n return n >= 0 && Math.floor(n) === n && isFinite(val);\n}\nfunction isPromise(val) {\n return (isDef(val) &&\n typeof val.then === 'function' &&\n typeof val.catch === 'function');\n}\n/**\n * Convert a value to a string that is actually rendered.\n */\nfunction toString(val) {\n return val == null\n ? ''\n : Array.isArray(val) || (isPlainObject(val) && val.toString === _toString)\n ? JSON.stringify(val, null, 2)\n : String(val);\n}\n/**\n * Convert an input value to a number for persistence.\n * If the conversion fails, return original string.\n */\nfunction toNumber(val) {\n var n = parseFloat(val);\n return isNaN(n) ? val : n;\n}\n/**\n * Make a map and return a function for checking if a key\n * is in that map.\n */\nfunction makeMap(str, expectsLowerCase) {\n var map = Object.create(null);\n var list = str.split(',');\n for (var i = 0; i < list.length; i++) {\n map[list[i]] = true;\n }\n return expectsLowerCase ? function (val) { return map[val.toLowerCase()]; } : function (val) { return map[val]; };\n}\n/**\n * Check if a tag is a built-in tag.\n */\nvar isBuiltInTag = makeMap('slot,component', true);\n/**\n * Check if an attribute is a reserved attribute.\n */\nvar isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');\n/**\n * Remove an item from an array.\n */\nfunction remove$2(arr, item) {\n var len = arr.length;\n if (len) {\n // fast path for the only / last item\n if (item === arr[len - 1]) {\n arr.length = len - 1;\n return;\n }\n var index = arr.indexOf(item);\n if (index > -1) {\n return arr.splice(index, 1);\n }\n }\n}\n/**\n * Check whether an object has the property.\n */\nvar hasOwnProperty = Object.prototype.hasOwnProperty;\nfunction hasOwn(obj, key) {\n return hasOwnProperty.call(obj, key);\n}\n/**\n * Create a cached version of a pure function.\n */\nfunction cached(fn) {\n var cache = Object.create(null);\n return function cachedFn(str) {\n var hit = cache[str];\n return hit || (cache[str] = fn(str));\n };\n}\n/**\n * Camelize a hyphen-delimited string.\n */\nvar camelizeRE = /-(\\w)/g;\nvar camelize = cached(function (str) {\n return str.replace(camelizeRE, function (_, c) { return (c ? c.toUpperCase() : ''); });\n});\n/**\n * Capitalize a string.\n */\nvar capitalize = cached(function (str) {\n return str.charAt(0).toUpperCase() + str.slice(1);\n});\n/**\n * Hyphenate a camelCase string.\n */\nvar hyphenateRE = /\\B([A-Z])/g;\nvar hyphenate = cached(function (str) {\n return str.replace(hyphenateRE, '-$1').toLowerCase();\n});\n/**\n * Simple bind polyfill for environments that do not support it,\n * e.g., PhantomJS 1.x. Technically, we don't need this anymore\n * since native bind is now performant enough in most browsers.\n * But removing it would mean breaking code that was able to run in\n * PhantomJS 1.x, so this must be kept for backward compatibility.\n */\n/* istanbul ignore next */\nfunction polyfillBind(fn, ctx) {\n function boundFn(a) {\n var l = arguments.length;\n return l\n ? l > 1\n ? fn.apply(ctx, arguments)\n : fn.call(ctx, a)\n : fn.call(ctx);\n }\n boundFn._length = fn.length;\n return boundFn;\n}\nfunction nativeBind(fn, ctx) {\n return fn.bind(ctx);\n}\n// @ts-expect-error bind cannot be `undefined`\nvar bind = Function.prototype.bind ? nativeBind : polyfillBind;\n/**\n * Convert an Array-like object to a real Array.\n */\nfunction toArray(list, start) {\n start = start || 0;\n var i = list.length - start;\n var ret = new Array(i);\n while (i--) {\n ret[i] = list[i + start];\n }\n return ret;\n}\n/**\n * Mix properties into target object.\n */\nfunction extend(to, _from) {\n for (var key in _from) {\n to[key] = _from[key];\n }\n return to;\n}\n/**\n * Merge an Array of Objects into a single Object.\n */\nfunction toObject(arr) {\n var res = {};\n for (var i = 0; i < arr.length; i++) {\n if (arr[i]) {\n extend(res, arr[i]);\n }\n }\n return res;\n}\n/* eslint-disable no-unused-vars */\n/**\n * Perform no operation.\n * Stubbing args to make Flow happy without leaving useless transpiled code\n * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/).\n */\nfunction noop(a, b, c) { }\n/**\n * Always return false.\n */\nvar no = function (a, b, c) { return false; };\n/* eslint-enable no-unused-vars */\n/**\n * Return the same value.\n */\nvar identity = function (_) { return _; };\n/**\n * Check if two values are loosely equal - that is,\n * if they are plain objects, do they have the same shape?\n */\nfunction looseEqual(a, b) {\n if (a === b)\n return true;\n var isObjectA = isObject(a);\n var isObjectB = isObject(b);\n if (isObjectA && isObjectB) {\n try {\n var isArrayA = Array.isArray(a);\n var isArrayB = Array.isArray(b);\n if (isArrayA && isArrayB) {\n return (a.length === b.length &&\n a.every(function (e, i) {\n return looseEqual(e, b[i]);\n }));\n }\n else if (a instanceof Date && b instanceof Date) {\n return a.getTime() === b.getTime();\n }\n else if (!isArrayA && !isArrayB) {\n var keysA = Object.keys(a);\n var keysB = Object.keys(b);\n return (keysA.length === keysB.length &&\n keysA.every(function (key) {\n return looseEqual(a[key], b[key]);\n }));\n }\n else {\n /* istanbul ignore next */\n return false;\n }\n }\n catch (e) {\n /* istanbul ignore next */\n return false;\n }\n }\n else if (!isObjectA && !isObjectB) {\n return String(a) === String(b);\n }\n else {\n return false;\n }\n}\n/**\n * Return the first index at which a loosely equal value can be\n * found in the array (if value is a plain object, the array must\n * contain an object of the same shape), or -1 if it is not present.\n */\nfunction looseIndexOf(arr, val) {\n for (var i = 0; i < arr.length; i++) {\n if (looseEqual(arr[i], val))\n return i;\n }\n return -1;\n}\n/**\n * Ensure a function is called only once.\n */\nfunction once(fn) {\n var called = false;\n return function () {\n if (!called) {\n called = true;\n fn.apply(this, arguments);\n }\n };\n}\n// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/is#polyfill\nfunction hasChanged(x, y) {\n if (x === y) {\n return x === 0 && 1 / x !== 1 / y;\n }\n else {\n return x === x || y === y;\n }\n}\n\nvar SSR_ATTR = 'data-server-rendered';\nvar ASSET_TYPES = ['component', 'directive', 'filter'];\nvar LIFECYCLE_HOOKS = [\n 'beforeCreate',\n 'created',\n 'beforeMount',\n 'mounted',\n 'beforeUpdate',\n 'updated',\n 'beforeDestroy',\n 'destroyed',\n 'activated',\n 'deactivated',\n 'errorCaptured',\n 'serverPrefetch',\n 'renderTracked',\n 'renderTriggered'\n];\n\nvar config = {\n /**\n * Option merge strategies (used in core/util/options)\n */\n // $flow-disable-line\n optionMergeStrategies: Object.create(null),\n /**\n * Whether to suppress warnings.\n */\n silent: false,\n /**\n * Show production mode tip message on boot?\n */\n productionTip: process.env.NODE_ENV !== 'production',\n /**\n * Whether to enable devtools\n */\n devtools: process.env.NODE_ENV !== 'production',\n /**\n * Whether to record perf\n */\n performance: false,\n /**\n * Error handler for watcher errors\n */\n errorHandler: null,\n /**\n * Warn handler for watcher warns\n */\n warnHandler: null,\n /**\n * Ignore certain custom elements\n */\n ignoredElements: [],\n /**\n * Custom user key aliases for v-on\n */\n // $flow-disable-line\n keyCodes: Object.create(null),\n /**\n * Check if a tag is reserved so that it cannot be registered as a\n * component. This is platform-dependent and may be overwritten.\n */\n isReservedTag: no,\n /**\n * Check if an attribute is reserved so that it cannot be used as a component\n * prop. This is platform-dependent and may be overwritten.\n */\n isReservedAttr: no,\n /**\n * Check if a tag is an unknown element.\n * Platform-dependent.\n */\n isUnknownElement: no,\n /**\n * Get the namespace of an element\n */\n getTagNamespace: noop,\n /**\n * Parse the real tag name for the specific platform.\n */\n parsePlatformTagName: identity,\n /**\n * Check if an attribute must be bound using property, e.g. value\n * Platform-dependent.\n */\n mustUseProp: no,\n /**\n * Perform updates asynchronously. Intended to be used by Vue Test Utils\n * This will significantly reduce performance if set to false.\n */\n async: true,\n /**\n * Exposed for legacy reasons\n */\n _lifecycleHooks: LIFECYCLE_HOOKS\n};\n\n/**\n * unicode letters used for parsing html tags, component names and property paths.\n * using https://www.w3.org/TR/html53/semantics-scripting.html#potentialcustomelementname\n * skipping \\u10000-\\uEFFFF due to it freezing up PhantomJS\n */\nvar unicodeRegExp = /a-zA-Z\\u00B7\\u00C0-\\u00D6\\u00D8-\\u00F6\\u00F8-\\u037D\\u037F-\\u1FFF\\u200C-\\u200D\\u203F-\\u2040\\u2070-\\u218F\\u2C00-\\u2FEF\\u3001-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFFD/;\n/**\n * Check if a string starts with $ or _\n */\nfunction isReserved(str) {\n var c = (str + '').charCodeAt(0);\n return c === 0x24 || c === 0x5f;\n}\n/**\n * Define a property.\n */\nfunction def(obj, key, val, enumerable) {\n Object.defineProperty(obj, key, {\n value: val,\n enumerable: !!enumerable,\n writable: true,\n configurable: true\n });\n}\n/**\n * Parse simple path.\n */\nvar bailRE = new RegExp(\"[^\".concat(unicodeRegExp.source, \".$_\\\\d]\"));\nfunction parsePath(path) {\n if (bailRE.test(path)) {\n return;\n }\n var segments = path.split('.');\n return function (obj) {\n for (var i = 0; i < segments.length; i++) {\n if (!obj)\n return;\n obj = obj[segments[i]];\n }\n return obj;\n };\n}\n\n// can we use __proto__?\nvar hasProto = '__proto__' in {};\n// Browser environment sniffing\nvar inBrowser = typeof window !== 'undefined';\nvar UA = inBrowser && window.navigator.userAgent.toLowerCase();\nvar isIE = UA && /msie|trident/.test(UA);\nvar isIE9 = UA && UA.indexOf('msie 9.0') > 0;\nvar isEdge = UA && UA.indexOf('edge/') > 0;\nUA && UA.indexOf('android') > 0;\nvar isIOS = UA && /iphone|ipad|ipod|ios/.test(UA);\nUA && /chrome\\/\\d+/.test(UA) && !isEdge;\nUA && /phantomjs/.test(UA);\nvar isFF = UA && UA.match(/firefox\\/(\\d+)/);\n// Firefox has a \"watch\" function on Object.prototype...\n// @ts-expect-error firebox support\nvar nativeWatch = {}.watch;\nvar supportsPassive = false;\nif (inBrowser) {\n try {\n var opts = {};\n Object.defineProperty(opts, 'passive', {\n get: function () {\n /* istanbul ignore next */\n supportsPassive = true;\n }\n }); // https://github.com/facebook/flow/issues/285\n window.addEventListener('test-passive', null, opts);\n }\n catch (e) { }\n}\n// this needs to be lazy-evaled because vue may be required before\n// vue-server-renderer can set VUE_ENV\nvar _isServer;\nvar isServerRendering = function () {\n if (_isServer === undefined) {\n /* istanbul ignore if */\n if (!inBrowser && typeof global !== 'undefined') {\n // detect presence of vue-server-renderer and avoid\n // Webpack shimming the process\n _isServer =\n global['process'] && global['process'].env.VUE_ENV === 'server';\n }\n else {\n _isServer = false;\n }\n }\n return _isServer;\n};\n// detect devtools\nvar devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;\n/* istanbul ignore next */\nfunction isNative(Ctor) {\n return typeof Ctor === 'function' && /native code/.test(Ctor.toString());\n}\nvar hasSymbol = typeof Symbol !== 'undefined' &&\n isNative(Symbol) &&\n typeof Reflect !== 'undefined' &&\n isNative(Reflect.ownKeys);\nvar _Set; // $flow-disable-line\n/* istanbul ignore if */ if (typeof Set !== 'undefined' && isNative(Set)) {\n // use native Set when available.\n _Set = Set;\n}\nelse {\n // a non-standard Set polyfill that only works with primitive keys.\n _Set = /** @class */ (function () {\n function Set() {\n this.set = Object.create(null);\n }\n Set.prototype.has = function (key) {\n return this.set[key] === true;\n };\n Set.prototype.add = function (key) {\n this.set[key] = true;\n };\n Set.prototype.clear = function () {\n this.set = Object.create(null);\n };\n return Set;\n }());\n}\n\nvar currentInstance = null;\n/**\n * This is exposed for compatibility with v3 (e.g. some functions in VueUse\n * relies on it). Do not use this internally, just use `currentInstance`.\n *\n * @internal this function needs manual type declaration because it relies\n * on previously manually authored types from Vue 2\n */\nfunction getCurrentInstance() {\n return currentInstance && { proxy: currentInstance };\n}\n/**\n * @internal\n */\nfunction setCurrentInstance(vm) {\n if (vm === void 0) { vm = null; }\n if (!vm)\n currentInstance && currentInstance._scope.off();\n currentInstance = vm;\n vm && vm._scope.on();\n}\n\n/**\n * @internal\n */\nvar VNode = /** @class */ (function () {\n function VNode(tag, data, children, text, elm, context, componentOptions, asyncFactory) {\n this.tag = tag;\n this.data = data;\n this.children = children;\n this.text = text;\n this.elm = elm;\n this.ns = undefined;\n this.context = context;\n this.fnContext = undefined;\n this.fnOptions = undefined;\n this.fnScopeId = undefined;\n this.key = data && data.key;\n this.componentOptions = componentOptions;\n this.componentInstance = undefined;\n this.parent = undefined;\n this.raw = false;\n this.isStatic = false;\n this.isRootInsert = true;\n this.isComment = false;\n this.isCloned = false;\n this.isOnce = false;\n this.asyncFactory = asyncFactory;\n this.asyncMeta = undefined;\n this.isAsyncPlaceholder = false;\n }\n Object.defineProperty(VNode.prototype, \"child\", {\n // DEPRECATED: alias for componentInstance for backwards compat.\n /* istanbul ignore next */\n get: function () {\n return this.componentInstance;\n },\n enumerable: false,\n configurable: true\n });\n return VNode;\n}());\nvar createEmptyVNode = function (text) {\n if (text === void 0) { text = ''; }\n var node = new VNode();\n node.text = text;\n node.isComment = true;\n return node;\n};\nfunction createTextVNode(val) {\n return new VNode(undefined, undefined, undefined, String(val));\n}\n// optimized shallow clone\n// used for static nodes and slot nodes because they may be reused across\n// multiple renders, cloning them avoids errors when DOM manipulations rely\n// on their elm reference.\nfunction cloneVNode(vnode) {\n var cloned = new VNode(vnode.tag, vnode.data, \n // #7975\n // clone children array to avoid mutating original in case of cloning\n // a child.\n vnode.children && vnode.children.slice(), vnode.text, vnode.elm, vnode.context, vnode.componentOptions, vnode.asyncFactory);\n cloned.ns = vnode.ns;\n cloned.isStatic = vnode.isStatic;\n cloned.key = vnode.key;\n cloned.isComment = vnode.isComment;\n cloned.fnContext = vnode.fnContext;\n cloned.fnOptions = vnode.fnOptions;\n cloned.fnScopeId = vnode.fnScopeId;\n cloned.asyncMeta = vnode.asyncMeta;\n cloned.isCloned = true;\n return cloned;\n}\n\n/******************************************************************************\r\nCopyright (c) Microsoft Corporation.\r\n\r\nPermission to use, copy, modify, and/or distribute this software for any\r\npurpose with or without fee is hereby granted.\r\n\r\nTHE SOFTWARE IS PROVIDED \"AS IS\" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH\r\nREGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY\r\nAND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,\r\nINDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM\r\nLOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR\r\nOTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR\r\nPERFORMANCE OF THIS SOFTWARE.\r\n***************************************************************************** */\r\n\r\nvar __assign = function() {\r\n __assign = Object.assign || function __assign(t) {\r\n for (var s, i = 1, n = arguments.length; i < n; i++) {\r\n s = arguments[i];\r\n for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p)) t[p] = s[p];\r\n }\r\n return t;\r\n };\r\n return __assign.apply(this, arguments);\r\n};\n\nvar uid$2 = 0;\nvar pendingCleanupDeps = [];\nvar cleanupDeps = function () {\n for (var i = 0; i < pendingCleanupDeps.length; i++) {\n var dep = pendingCleanupDeps[i];\n dep.subs = dep.subs.filter(function (s) { return s; });\n dep._pending = false;\n }\n pendingCleanupDeps.length = 0;\n};\n/**\n * A dep is an observable that can have multiple\n * directives subscribing to it.\n * @internal\n */\nvar Dep = /** @class */ (function () {\n function Dep() {\n // pending subs cleanup\n this._pending = false;\n this.id = uid$2++;\n this.subs = [];\n }\n Dep.prototype.addSub = function (sub) {\n this.subs.push(sub);\n };\n Dep.prototype.removeSub = function (sub) {\n // #12696 deps with massive amount of subscribers are extremely slow to\n // clean up in Chromium\n // to workaround this, we unset the sub for now, and clear them on\n // next scheduler flush.\n this.subs[this.subs.indexOf(sub)] = null;\n if (!this._pending) {\n this._pending = true;\n pendingCleanupDeps.push(this);\n }\n };\n Dep.prototype.depend = function (info) {\n if (Dep.target) {\n Dep.target.addDep(this);\n if (process.env.NODE_ENV !== 'production' && info && Dep.target.onTrack) {\n Dep.target.onTrack(__assign({ effect: Dep.target }, info));\n }\n }\n };\n Dep.prototype.notify = function (info) {\n // stabilize the subscriber list first\n var subs = this.subs.filter(function (s) { return s; });\n if (process.env.NODE_ENV !== 'production' && !config.async) {\n // subs aren't sorted in scheduler if not running async\n // we need to sort them now to make sure they fire in correct\n // order\n subs.sort(function (a, b) { return a.id - b.id; });\n }\n for (var i = 0, l = subs.length; i < l; i++) {\n var sub = subs[i];\n if (process.env.NODE_ENV !== 'production' && info) {\n sub.onTrigger &&\n sub.onTrigger(__assign({ effect: subs[i] }, info));\n }\n sub.update();\n }\n };\n return Dep;\n}());\n// The current target watcher being evaluated.\n// This is globally unique because only one watcher\n// can be evaluated at a time.\nDep.target = null;\nvar targetStack = [];\nfunction pushTarget(target) {\n targetStack.push(target);\n Dep.target = target;\n}\nfunction popTarget() {\n targetStack.pop();\n Dep.target = targetStack[targetStack.length - 1];\n}\n\n/*\n * not type checking this file because flow doesn't play well with\n * dynamically accessing methods on Array prototype\n */\nvar arrayProto = Array.prototype;\nvar arrayMethods = Object.create(arrayProto);\nvar methodsToPatch = [\n 'push',\n 'pop',\n 'shift',\n 'unshift',\n 'splice',\n 'sort',\n 'reverse'\n];\n/**\n * Intercept mutating methods and emit events\n */\nmethodsToPatch.forEach(function (method) {\n // cache original method\n var original = arrayProto[method];\n def(arrayMethods, method, function mutator() {\n var args = [];\n for (var _i = 0; _i < arguments.length; _i++) {\n args[_i] = arguments[_i];\n }\n var result = original.apply(this, args);\n var ob = this.__ob__;\n var inserted;\n switch (method) {\n case 'push':\n case 'unshift':\n inserted = args;\n break;\n case 'splice':\n inserted = args.slice(2);\n break;\n }\n if (inserted)\n ob.observeArray(inserted);\n // notify change\n if (process.env.NODE_ENV !== 'production') {\n ob.dep.notify({\n type: \"array mutation\" /* TriggerOpTypes.ARRAY_MUTATION */,\n target: this,\n key: method\n });\n }\n else {\n ob.dep.notify();\n }\n return result;\n });\n});\n\nvar arrayKeys = Object.getOwnPropertyNames(arrayMethods);\nvar NO_INIITIAL_VALUE = {};\n/**\n * In some cases we may want to disable observation inside a component's\n * update computation.\n */\nvar shouldObserve = true;\nfunction toggleObserving(value) {\n shouldObserve = value;\n}\n// ssr mock dep\nvar mockDep = {\n notify: noop,\n depend: noop,\n addSub: noop,\n removeSub: noop\n};\n/**\n * Observer class that is attached to each observed\n * object. Once attached, the observer converts the target\n * object's property keys into getter/setters that\n * collect dependencies and dispatch updates.\n */\nvar Observer = /** @class */ (function () {\n function Observer(value, shallow, mock) {\n if (shallow === void 0) { shallow = false; }\n if (mock === void 0) { mock = false; }\n this.value = value;\n this.shallow = shallow;\n this.mock = mock;\n // this.value = value\n this.dep = mock ? mockDep : new Dep();\n this.vmCount = 0;\n def(value, '__ob__', this);\n if (isArray(value)) {\n if (!mock) {\n if (hasProto) {\n value.__proto__ = arrayMethods;\n /* eslint-enable no-proto */\n }\n else {\n for (var i = 0, l = arrayKeys.length; i < l; i++) {\n var key = arrayKeys[i];\n def(value, key, arrayMethods[key]);\n }\n }\n }\n if (!shallow) {\n this.observeArray(value);\n }\n }\n else {\n /**\n * Walk through all properties and convert them into\n * getter/setters. This method should only be called when\n * value type is Object.\n */\n var keys = Object.keys(value);\n for (var i = 0; i < keys.length; i++) {\n var key = keys[i];\n defineReactive(value, key, NO_INIITIAL_VALUE, undefined, shallow, mock);\n }\n }\n }\n /**\n * Observe a list of Array items.\n */\n Observer.prototype.observeArray = function (value) {\n for (var i = 0, l = value.length; i < l; i++) {\n observe(value[i], false, this.mock);\n }\n };\n return Observer;\n}());\n// helpers\n/**\n * Attempt to create an observer instance for a value,\n * returns the new observer if successfully observed,\n * or the existing observer if the value already has one.\n */\nfunction observe(value, shallow, ssrMockReactivity) {\n if (value && hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {\n return value.__ob__;\n }\n if (shouldObserve &&\n (ssrMockReactivity || !isServerRendering()) &&\n (isArray(value) || isPlainObject(value)) &&\n Object.isExtensible(value) &&\n !value.__v_skip /* ReactiveFlags.SKIP */ &&\n !isRef(value) &&\n !(value instanceof VNode)) {\n return new Observer(value, shallow, ssrMockReactivity);\n }\n}\n/**\n * Define a reactive property on an Object.\n */\nfunction defineReactive(obj, key, val, customSetter, shallow, mock) {\n var dep = new Dep();\n var property = Object.getOwnPropertyDescriptor(obj, key);\n if (property && property.configurable === false) {\n return;\n }\n // cater for pre-defined getter/setters\n var getter = property && property.get;\n var setter = property && property.set;\n if ((!getter || setter) &&\n (val === NO_INIITIAL_VALUE || arguments.length === 2)) {\n val = obj[key];\n }\n var childOb = !shallow && observe(val, false, mock);\n Object.defineProperty(obj, key, {\n enumerable: true,\n configurable: true,\n get: function reactiveGetter() {\n var value = getter ? getter.call(obj) : val;\n if (Dep.target) {\n if (process.env.NODE_ENV !== 'production') {\n dep.depend({\n target: obj,\n type: \"get\" /* TrackOpTypes.GET */,\n key: key\n });\n }\n else {\n dep.depend();\n }\n if (childOb) {\n childOb.dep.depend();\n if (isArray(value)) {\n dependArray(value);\n }\n }\n }\n return isRef(value) && !shallow ? value.value : value;\n },\n set: function reactiveSetter(newVal) {\n var value = getter ? getter.call(obj) : val;\n if (!hasChanged(value, newVal)) {\n return;\n }\n if (process.env.NODE_ENV !== 'production' && customSetter) {\n customSetter();\n }\n if (setter) {\n setter.call(obj, newVal);\n }\n else if (getter) {\n // #7981: for accessor properties without setter\n return;\n }\n else if (!shallow && isRef(value) && !isRef(newVal)) {\n value.value = newVal;\n return;\n }\n else {\n val = newVal;\n }\n childOb = !shallow && observe(newVal, false, mock);\n if (process.env.NODE_ENV !== 'production') {\n dep.notify({\n type: \"set\" /* TriggerOpTypes.SET */,\n target: obj,\n key: key,\n newValue: newVal,\n oldValue: value\n });\n }\n else {\n dep.notify();\n }\n }\n });\n return dep;\n}\nfunction set(target, key, val) {\n if (process.env.NODE_ENV !== 'production' && (isUndef(target) || isPrimitive(target))) {\n warn(\"Cannot set reactive property on undefined, null, or primitive value: \".concat(target));\n }\n if (isReadonly(target)) {\n process.env.NODE_ENV !== 'production' && warn(\"Set operation on key \\\"\".concat(key, \"\\\" failed: target is readonly.\"));\n return;\n }\n var ob = target.__ob__;\n if (isArray(target) && isValidArrayIndex(key)) {\n target.length = Math.max(target.length, key);\n target.splice(key, 1, val);\n // when mocking for SSR, array methods are not hijacked\n if (ob && !ob.shallow && ob.mock) {\n observe(val, false, true);\n }\n return val;\n }\n if (key in target && !(key in Object.prototype)) {\n target[key] = val;\n return val;\n }\n if (target._isVue || (ob && ob.vmCount)) {\n process.env.NODE_ENV !== 'production' &&\n warn('Avoid adding reactive properties to a Vue instance or its root $data ' +\n 'at runtime - declare it upfront in the data option.');\n return val;\n }\n if (!ob) {\n target[key] = val;\n return val;\n }\n defineReactive(ob.value, key, val, undefined, ob.shallow, ob.mock);\n if (process.env.NODE_ENV !== 'production') {\n ob.dep.notify({\n type: \"add\" /* TriggerOpTypes.ADD */,\n target: target,\n key: key,\n newValue: val,\n oldValue: undefined\n });\n }\n else {\n ob.dep.notify();\n }\n return val;\n}\nfunction del(target, key) {\n if (process.env.NODE_ENV !== 'production' && (isUndef(target) || isPrimitive(target))) {\n warn(\"Cannot delete reactive property on undefined, null, or primitive value: \".concat(target));\n }\n if (isArray(target) && isValidArrayIndex(key)) {\n target.splice(key, 1);\n return;\n }\n var ob = target.__ob__;\n if (target._isVue || (ob && ob.vmCount)) {\n process.env.NODE_ENV !== 'production' &&\n warn('Avoid deleting properties on a Vue instance or its root $data ' +\n '- just set it to null.');\n return;\n }\n if (isReadonly(target)) {\n process.env.NODE_ENV !== 'production' &&\n warn(\"Delete operation on key \\\"\".concat(key, \"\\\" failed: target is readonly.\"));\n return;\n }\n if (!hasOwn(target, key)) {\n return;\n }\n delete target[key];\n if (!ob) {\n return;\n }\n if (process.env.NODE_ENV !== 'production') {\n ob.dep.notify({\n type: \"delete\" /* TriggerOpTypes.DELETE */,\n target: target,\n key: key\n });\n }\n else {\n ob.dep.notify();\n }\n}\n/**\n * Collect dependencies on array elements when the array is touched, since\n * we cannot intercept array element access like property getters.\n */\nfunction dependArray(value) {\n for (var e = void 0, i = 0, l = value.length; i < l; i++) {\n e = value[i];\n if (e && e.__ob__) {\n e.__ob__.dep.depend();\n }\n if (isArray(e)) {\n dependArray(e);\n }\n }\n}\n\nfunction reactive(target) {\n makeReactive(target, false);\n return target;\n}\n/**\n * Return a shallowly-reactive copy of the original object, where only the root\n * level properties are reactive. It also does not auto-unwrap refs (even at the\n * root level).\n */\nfunction shallowReactive(target) {\n makeReactive(target, true);\n def(target, \"__v_isShallow\" /* ReactiveFlags.IS_SHALLOW */, true);\n return target;\n}\nfunction makeReactive(target, shallow) {\n // if trying to observe a readonly proxy, return the readonly version.\n if (!isReadonly(target)) {\n if (process.env.NODE_ENV !== 'production') {\n if (isArray(target)) {\n warn(\"Avoid using Array as root value for \".concat(shallow ? \"shallowReactive()\" : \"reactive()\", \" as it cannot be tracked in watch() or watchEffect(). Use \").concat(shallow ? \"shallowRef()\" : \"ref()\", \" instead. This is a Vue-2-only limitation.\"));\n }\n var existingOb = target && target.__ob__;\n if (existingOb && existingOb.shallow !== shallow) {\n warn(\"Target is already a \".concat(existingOb.shallow ? \"\" : \"non-\", \"shallow reactive object, and cannot be converted to \").concat(shallow ? \"\" : \"non-\", \"shallow.\"));\n }\n }\n var ob = observe(target, shallow, isServerRendering() /* ssr mock reactivity */);\n if (process.env.NODE_ENV !== 'production' && !ob) {\n if (target == null || isPrimitive(target)) {\n warn(\"value cannot be made reactive: \".concat(String(target)));\n }\n if (isCollectionType(target)) {\n warn(\"Vue 2 does not support reactive collection types such as Map or Set.\");\n }\n }\n }\n}\nfunction isReactive(value) {\n if (isReadonly(value)) {\n return isReactive(value[\"__v_raw\" /* ReactiveFlags.RAW */]);\n }\n return !!(value && value.__ob__);\n}\nfunction isShallow(value) {\n return !!(value && value.__v_isShallow);\n}\nfunction isReadonly(value) {\n return !!(value && value.__v_isReadonly);\n}\nfunction isProxy(value) {\n return isReactive(value) || isReadonly(value);\n}\nfunction toRaw(observed) {\n var raw = observed && observed[\"__v_raw\" /* ReactiveFlags.RAW */];\n return raw ? toRaw(raw) : observed;\n}\nfunction markRaw(value) {\n // non-extensible objects won't be observed anyway\n if (Object.isExtensible(value)) {\n def(value, \"__v_skip\" /* ReactiveFlags.SKIP */, true);\n }\n return value;\n}\n/**\n * @internal\n */\nfunction isCollectionType(value) {\n var type = toRawType(value);\n return (type === 'Map' || type === 'WeakMap' || type === 'Set' || type === 'WeakSet');\n}\n\n/**\n * @internal\n */\nvar RefFlag = \"__v_isRef\";\nfunction isRef(r) {\n return !!(r && r.__v_isRef === true);\n}\nfunction ref$1(value) {\n return createRef(value, false);\n}\nfunction shallowRef(value) {\n return createRef(value, true);\n}\nfunction createRef(rawValue, shallow) {\n if (isRef(rawValue)) {\n return rawValue;\n }\n var ref = {};\n def(ref, RefFlag, true);\n def(ref, \"__v_isShallow\" /* ReactiveFlags.IS_SHALLOW */, shallow);\n def(ref, 'dep', defineReactive(ref, 'value', rawValue, null, shallow, isServerRendering()));\n return ref;\n}\nfunction triggerRef(ref) {\n if (process.env.NODE_ENV !== 'production' && !ref.dep) {\n warn(\"received object is not a triggerable ref.\");\n }\n if (process.env.NODE_ENV !== 'production') {\n ref.dep &&\n ref.dep.notify({\n type: \"set\" /* TriggerOpTypes.SET */,\n target: ref,\n key: 'value'\n });\n }\n else {\n ref.dep && ref.dep.notify();\n }\n}\nfunction unref(ref) {\n return isRef(ref) ? ref.value : ref;\n}\nfunction proxyRefs(objectWithRefs) {\n if (isReactive(objectWithRefs)) {\n return objectWithRefs;\n }\n var proxy = {};\n var keys = Object.keys(objectWithRefs);\n for (var i = 0; i < keys.length; i++) {\n proxyWithRefUnwrap(proxy, objectWithRefs, keys[i]);\n }\n return proxy;\n}\nfunction proxyWithRefUnwrap(target, source, key) {\n Object.defineProperty(target, key, {\n enumerable: true,\n configurable: true,\n get: function () {\n var val = source[key];\n if (isRef(val)) {\n return val.value;\n }\n else {\n var ob = val && val.__ob__;\n if (ob)\n ob.dep.depend();\n return val;\n }\n },\n set: function (value) {\n var oldValue = source[key];\n if (isRef(oldValue) && !isRef(value)) {\n oldValue.value = value;\n }\n else {\n source[key] = value;\n }\n }\n });\n}\nfunction customRef(factory) {\n var dep = new Dep();\n var _a = factory(function () {\n if (process.env.NODE_ENV !== 'production') {\n dep.depend({\n target: ref,\n type: \"get\" /* TrackOpTypes.GET */,\n key: 'value'\n });\n }\n else {\n dep.depend();\n }\n }, function () {\n if (process.env.NODE_ENV !== 'production') {\n dep.notify({\n target: ref,\n type: \"set\" /* TriggerOpTypes.SET */,\n key: 'value'\n });\n }\n else {\n dep.notify();\n }\n }), get = _a.get, set = _a.set;\n var ref = {\n get value() {\n return get();\n },\n set value(newVal) {\n set(newVal);\n }\n };\n def(ref, RefFlag, true);\n return ref;\n}\nfunction toRefs(object) {\n if (process.env.NODE_ENV !== 'production' && !isReactive(object)) {\n warn(\"toRefs() expects a reactive object but received a plain one.\");\n }\n var ret = isArray(object) ? new Array(object.length) : {};\n for (var key in object) {\n ret[key] = toRef(object, key);\n }\n return ret;\n}\nfunction toRef(object, key, defaultValue) {\n var val = object[key];\n if (isRef(val)) {\n return val;\n }\n var ref = {\n get value() {\n var val = object[key];\n return val === undefined ? defaultValue : val;\n },\n set value(newVal) {\n object[key] = newVal;\n }\n };\n def(ref, RefFlag, true);\n return ref;\n}\n\nvar rawToReadonlyFlag = \"__v_rawToReadonly\";\nvar rawToShallowReadonlyFlag = \"__v_rawToShallowReadonly\";\nfunction readonly(target) {\n return createReadonly(target, false);\n}\nfunction createReadonly(target, shallow) {\n if (!isPlainObject(target)) {\n if (process.env.NODE_ENV !== 'production') {\n if (isArray(target)) {\n warn(\"Vue 2 does not support readonly arrays.\");\n }\n else if (isCollectionType(target)) {\n warn(\"Vue 2 does not support readonly collection types such as Map or Set.\");\n }\n else {\n warn(\"value cannot be made readonly: \".concat(typeof target));\n }\n }\n return target;\n }\n if (process.env.NODE_ENV !== 'production' && !Object.isExtensible(target)) {\n warn(\"Vue 2 does not support creating readonly proxy for non-extensible object.\");\n }\n // already a readonly object\n if (isReadonly(target)) {\n return target;\n }\n // already has a readonly proxy\n var existingFlag = shallow ? rawToShallowReadonlyFlag : rawToReadonlyFlag;\n var existingProxy = target[existingFlag];\n if (existingProxy) {\n return existingProxy;\n }\n var proxy = Object.create(Object.getPrototypeOf(target));\n def(target, existingFlag, proxy);\n def(proxy, \"__v_isReadonly\" /* ReactiveFlags.IS_READONLY */, true);\n def(proxy, \"__v_raw\" /* ReactiveFlags.RAW */, target);\n if (isRef(target)) {\n def(proxy, RefFlag, true);\n }\n if (shallow || isShallow(target)) {\n def(proxy, \"__v_isShallow\" /* ReactiveFlags.IS_SHALLOW */, true);\n }\n var keys = Object.keys(target);\n for (var i = 0; i < keys.length; i++) {\n defineReadonlyProperty(proxy, target, keys[i], shallow);\n }\n return proxy;\n}\nfunction defineReadonlyProperty(proxy, target, key, shallow) {\n Object.defineProperty(proxy, key, {\n enumerable: true,\n configurable: true,\n get: function () {\n var val = target[key];\n return shallow || !isPlainObject(val) ? val : readonly(val);\n },\n set: function () {\n process.env.NODE_ENV !== 'production' &&\n warn(\"Set operation on key \\\"\".concat(key, \"\\\" failed: target is readonly.\"));\n }\n });\n}\n/**\n * Returns a reactive-copy of the original object, where only the root level\n * properties are readonly, and does NOT unwrap refs nor recursively convert\n * returned properties.\n * This is used for creating the props proxy object for stateful components.\n */\nfunction shallowReadonly(target) {\n return createReadonly(target, true);\n}\n\nfunction computed(getterOrOptions, debugOptions) {\n var getter;\n var setter;\n var onlyGetter = isFunction(getterOrOptions);\n if (onlyGetter) {\n getter = getterOrOptions;\n setter = process.env.NODE_ENV !== 'production'\n ? function () {\n warn('Write operation failed: computed value is readonly');\n }\n : noop;\n }\n else {\n getter = getterOrOptions.get;\n setter = getterOrOptions.set;\n }\n var watcher = isServerRendering()\n ? null\n : new Watcher(currentInstance, getter, noop, { lazy: true });\n if (process.env.NODE_ENV !== 'production' && watcher && debugOptions) {\n watcher.onTrack = debugOptions.onTrack;\n watcher.onTrigger = debugOptions.onTrigger;\n }\n var ref = {\n // some libs rely on the presence effect for checking computed refs\n // from normal refs, but the implementation doesn't matter\n effect: watcher,\n get value() {\n if (watcher) {\n if (watcher.dirty) {\n watcher.evaluate();\n }\n if (Dep.target) {\n if (process.env.NODE_ENV !== 'production' && Dep.target.onTrack) {\n Dep.target.onTrack({\n effect: Dep.target,\n target: ref,\n type: \"get\" /* TrackOpTypes.GET */,\n key: 'value'\n });\n }\n watcher.depend();\n }\n return watcher.value;\n }\n else {\n return getter();\n }\n },\n set value(newVal) {\n setter(newVal);\n }\n };\n def(ref, RefFlag, true);\n def(ref, \"__v_isReadonly\" /* ReactiveFlags.IS_READONLY */, onlyGetter);\n return ref;\n}\n\nvar WATCHER = \"watcher\";\nvar WATCHER_CB = \"\".concat(WATCHER, \" callback\");\nvar WATCHER_GETTER = \"\".concat(WATCHER, \" getter\");\nvar WATCHER_CLEANUP = \"\".concat(WATCHER, \" cleanup\");\n// Simple effect.\nfunction watchEffect(effect, options) {\n return doWatch(effect, null, options);\n}\nfunction watchPostEffect(effect, options) {\n return doWatch(effect, null, (process.env.NODE_ENV !== 'production'\n ? __assign(__assign({}, options), { flush: 'post' }) : { flush: 'post' }));\n}\nfunction watchSyncEffect(effect, options) {\n return doWatch(effect, null, (process.env.NODE_ENV !== 'production'\n ? __assign(__assign({}, options), { flush: 'sync' }) : { flush: 'sync' }));\n}\n// initial value for watchers to trigger on undefined initial values\nvar INITIAL_WATCHER_VALUE = {};\n// implementation\nfunction watch(source, cb, options) {\n if (process.env.NODE_ENV !== 'production' && typeof cb !== 'function') {\n warn(\"`watch(fn, options?)` signature has been moved to a separate API. \" +\n \"Use `watchEffect(fn, options?)` instead. `watch` now only \" +\n \"supports `watch(source, cb, options?) signature.\");\n }\n return doWatch(source, cb, options);\n}\nfunction doWatch(source, cb, _a) {\n var _b = _a === void 0 ? emptyObject : _a, immediate = _b.immediate, deep = _b.deep, _c = _b.flush, flush = _c === void 0 ? 'pre' : _c, onTrack = _b.onTrack, onTrigger = _b.onTrigger;\n if (process.env.NODE_ENV !== 'production' && !cb) {\n if (immediate !== undefined) {\n warn(\"watch() \\\"immediate\\\" option is only respected when using the \" +\n \"watch(source, callback, options?) signature.\");\n }\n if (deep !== undefined) {\n warn(\"watch() \\\"deep\\\" option is only respected when using the \" +\n \"watch(source, callback, options?) signature.\");\n }\n }\n var warnInvalidSource = function (s) {\n warn(\"Invalid watch source: \".concat(s, \". A watch source can only be a getter/effect \") +\n \"function, a ref, a reactive object, or an array of these types.\");\n };\n var instance = currentInstance;\n var call = function (fn, type, args) {\n if (args === void 0) { args = null; }\n return invokeWithErrorHandling(fn, null, args, instance, type);\n };\n var getter;\n var forceTrigger = false;\n var isMultiSource = false;\n if (isRef(source)) {\n getter = function () { return source.value; };\n forceTrigger = isShallow(source);\n }\n else if (isReactive(source)) {\n getter = function () {\n source.__ob__.dep.depend();\n return source;\n };\n deep = true;\n }\n else if (isArray(source)) {\n isMultiSource = true;\n forceTrigger = source.some(function (s) { return isReactive(s) || isShallow(s); });\n getter = function () {\n return source.map(function (s) {\n if (isRef(s)) {\n return s.value;\n }\n else if (isReactive(s)) {\n return traverse(s);\n }\n else if (isFunction(s)) {\n return call(s, WATCHER_GETTER);\n }\n else {\n process.env.NODE_ENV !== 'production' && warnInvalidSource(s);\n }\n });\n };\n }\n else if (isFunction(source)) {\n if (cb) {\n // getter with cb\n getter = function () { return call(source, WATCHER_GETTER); };\n }\n else {\n // no cb -> simple effect\n getter = function () {\n if (instance && instance._isDestroyed) {\n return;\n }\n if (cleanup) {\n cleanup();\n }\n return call(source, WATCHER, [onCleanup]);\n };\n }\n }\n else {\n getter = noop;\n process.env.NODE_ENV !== 'production' && warnInvalidSource(source);\n }\n if (cb && deep) {\n var baseGetter_1 = getter;\n getter = function () { return traverse(baseGetter_1()); };\n }\n var cleanup;\n var onCleanup = function (fn) {\n cleanup = watcher.onStop = function () {\n call(fn, WATCHER_CLEANUP);\n };\n };\n // in SSR there is no need to setup an actual effect, and it should be noop\n // unless it's eager\n if (isServerRendering()) {\n // we will also not call the invalidate callback (+ runner is not set up)\n onCleanup = noop;\n if (!cb) {\n getter();\n }\n else if (immediate) {\n call(cb, WATCHER_CB, [\n getter(),\n isMultiSource ? [] : undefined,\n onCleanup\n ]);\n }\n return noop;\n }\n var watcher = new Watcher(currentInstance, getter, noop, {\n lazy: true\n });\n watcher.noRecurse = !cb;\n var oldValue = isMultiSource ? [] : INITIAL_WATCHER_VALUE;\n // overwrite default run\n watcher.run = function () {\n if (!watcher.active) {\n return;\n }\n if (cb) {\n // watch(source, cb)\n var newValue = watcher.get();\n if (deep ||\n forceTrigger ||\n (isMultiSource\n ? newValue.some(function (v, i) {\n return hasChanged(v, oldValue[i]);\n })\n : hasChanged(newValue, oldValue))) {\n // cleanup before running cb again\n if (cleanup) {\n cleanup();\n }\n call(cb, WATCHER_CB, [\n newValue,\n // pass undefined as the old value when it's changed for the first time\n oldValue === INITIAL_WATCHER_VALUE ? undefined : oldValue,\n onCleanup\n ]);\n oldValue = newValue;\n }\n }\n else {\n // watchEffect\n watcher.get();\n }\n };\n if (flush === 'sync') {\n watcher.update = watcher.run;\n }\n else if (flush === 'post') {\n watcher.post = true;\n watcher.update = function () { return queueWatcher(watcher); };\n }\n else {\n // pre\n watcher.update = function () {\n if (instance && instance === currentInstance && !instance._isMounted) {\n // pre-watcher triggered before\n var buffer = instance._preWatchers || (instance._preWatchers = []);\n if (buffer.indexOf(watcher) < 0)\n buffer.push(watcher);\n }\n else {\n queueWatcher(watcher);\n }\n };\n }\n if (process.env.NODE_ENV !== 'production') {\n watcher.onTrack = onTrack;\n watcher.onTrigger = onTrigger;\n }\n // initial run\n if (cb) {\n if (immediate) {\n watcher.run();\n }\n else {\n oldValue = watcher.get();\n }\n }\n else if (flush === 'post' && instance) {\n instance.$once('hook:mounted', function () { return watcher.get(); });\n }\n else {\n watcher.get();\n }\n return function () {\n watcher.teardown();\n };\n}\n\nvar activeEffectScope;\nvar EffectScope = /** @class */ (function () {\n function EffectScope(detached) {\n if (detached === void 0) { detached = false; }\n this.detached = detached;\n /**\n * @internal\n */\n this.active = true;\n /**\n * @internal\n */\n this.effects = [];\n /**\n * @internal\n */\n this.cleanups = [];\n this.parent = activeEffectScope;\n if (!detached && activeEffectScope) {\n this.index =\n (activeEffectScope.scopes || (activeEffectScope.scopes = [])).push(this) - 1;\n }\n }\n EffectScope.prototype.run = function (fn) {\n if (this.active) {\n var currentEffectScope = activeEffectScope;\n try {\n activeEffectScope = this;\n return fn();\n }\n finally {\n activeEffectScope = currentEffectScope;\n }\n }\n else if (process.env.NODE_ENV !== 'production') {\n warn(\"cannot run an inactive effect scope.\");\n }\n };\n /**\n * This should only be called on non-detached scopes\n * @internal\n */\n EffectScope.prototype.on = function () {\n activeEffectScope = this;\n };\n /**\n * This should only be called on non-detached scopes\n * @internal\n */\n EffectScope.prototype.off = function () {\n activeEffectScope = this.parent;\n };\n EffectScope.prototype.stop = function (fromParent) {\n if (this.active) {\n var i = void 0, l = void 0;\n for (i = 0, l = this.effects.length; i < l; i++) {\n this.effects[i].teardown();\n }\n for (i = 0, l = this.cleanups.length; i < l; i++) {\n this.cleanups[i]();\n }\n if (this.scopes) {\n for (i = 0, l = this.scopes.length; i < l; i++) {\n this.scopes[i].stop(true);\n }\n }\n // nested scope, dereference from parent to avoid memory leaks\n if (!this.detached && this.parent && !fromParent) {\n // optimized O(1) removal\n var last = this.parent.scopes.pop();\n if (last && last !== this) {\n this.parent.scopes[this.index] = last;\n last.index = this.index;\n }\n }\n this.parent = undefined;\n this.active = false;\n }\n };\n return EffectScope;\n}());\nfunction effectScope(detached) {\n return new EffectScope(detached);\n}\n/**\n * @internal\n */\nfunction recordEffectScope(effect, scope) {\n if (scope === void 0) { scope = activeEffectScope; }\n if (scope && scope.active) {\n scope.effects.push(effect);\n }\n}\nfunction getCurrentScope() {\n return activeEffectScope;\n}\nfunction onScopeDispose(fn) {\n if (activeEffectScope) {\n activeEffectScope.cleanups.push(fn);\n }\n else if (process.env.NODE_ENV !== 'production') {\n warn(\"onScopeDispose() is called when there is no active effect scope\" +\n \" to be associated with.\");\n }\n}\n\nfunction provide(key, value) {\n if (!currentInstance) {\n if (process.env.NODE_ENV !== 'production') {\n warn(\"provide() can only be used inside setup().\");\n }\n }\n else {\n // TS doesn't allow symbol as index type\n resolveProvided(currentInstance)[key] = value;\n }\n}\nfunction resolveProvided(vm) {\n // by default an instance inherits its parent's provides object\n // but when it needs to provide values of its own, it creates its\n // own provides object using parent provides object as prototype.\n // this way in `inject` we can simply look up injections from direct\n // parent and let the prototype chain do the work.\n var existing = vm._provided;\n var parentProvides = vm.$parent && vm.$parent._provided;\n if (parentProvides === existing) {\n return (vm._provided = Object.create(parentProvides));\n }\n else {\n return existing;\n }\n}\nfunction inject(key, defaultValue, treatDefaultAsFactory) {\n if (treatDefaultAsFactory === void 0) { treatDefaultAsFactory = false; }\n // fallback to `currentRenderingInstance` so that this can be called in\n // a functional component\n var instance = currentInstance;\n if (instance) {\n // #2400\n // to support `app.use` plugins,\n // fallback to appContext's `provides` if the instance is at root\n var provides = instance.$parent && instance.$parent._provided;\n if (provides && key in provides) {\n // TS doesn't allow symbol as index type\n return provides[key];\n }\n else if (arguments.length > 1) {\n return treatDefaultAsFactory && isFunction(defaultValue)\n ? defaultValue.call(instance)\n : defaultValue;\n }\n else if (process.env.NODE_ENV !== 'production') {\n warn(\"injection \\\"\".concat(String(key), \"\\\" not found.\"));\n }\n }\n else if (process.env.NODE_ENV !== 'production') {\n warn(\"inject() can only be used inside setup() or functional components.\");\n }\n}\n\nvar normalizeEvent = cached(function (name) {\n var passive = name.charAt(0) === '&';\n name = passive ? name.slice(1) : name;\n var once = name.charAt(0) === '~'; // Prefixed last, checked first\n name = once ? name.slice(1) : name;\n var capture = name.charAt(0) === '!';\n name = capture ? name.slice(1) : name;\n return {\n name: name,\n once: once,\n capture: capture,\n passive: passive\n };\n});\nfunction createFnInvoker(fns, vm) {\n function invoker() {\n var fns = invoker.fns;\n if (isArray(fns)) {\n var cloned = fns.slice();\n for (var i = 0; i < cloned.length; i++) {\n invokeWithErrorHandling(cloned[i], null, arguments, vm, \"v-on handler\");\n }\n }\n else {\n // return handler return value for single handlers\n return invokeWithErrorHandling(fns, null, arguments, vm, \"v-on handler\");\n }\n }\n invoker.fns = fns;\n return invoker;\n}\nfunction updateListeners(on, oldOn, add, remove, createOnceHandler, vm) {\n var name, cur, old, event;\n for (name in on) {\n cur = on[name];\n old = oldOn[name];\n event = normalizeEvent(name);\n if (isUndef(cur)) {\n process.env.NODE_ENV !== 'production' &&\n warn(\"Invalid handler for event \\\"\".concat(event.name, \"\\\": got \") + String(cur), vm);\n }\n else if (isUndef(old)) {\n if (isUndef(cur.fns)) {\n cur = on[name] = createFnInvoker(cur, vm);\n }\n if (isTrue(event.once)) {\n cur = on[name] = createOnceHandler(event.name, cur, event.capture);\n }\n add(event.name, cur, event.capture, event.passive, event.params);\n }\n else if (cur !== old) {\n old.fns = cur;\n on[name] = old;\n }\n }\n for (name in oldOn) {\n if (isUndef(on[name])) {\n event = normalizeEvent(name);\n remove(event.name, oldOn[name], event.capture);\n }\n }\n}\n\nfunction mergeVNodeHook(def, hookKey, hook) {\n if (def instanceof VNode) {\n def = def.data.hook || (def.data.hook = {});\n }\n var invoker;\n var oldHook = def[hookKey];\n function wrappedHook() {\n hook.apply(this, arguments);\n // important: remove merged hook to ensure it's called only once\n // and prevent memory leak\n remove$2(invoker.fns, wrappedHook);\n }\n if (isUndef(oldHook)) {\n // no existing hook\n invoker = createFnInvoker([wrappedHook]);\n }\n else {\n /* istanbul ignore if */\n if (isDef(oldHook.fns) && isTrue(oldHook.merged)) {\n // already a merged invoker\n invoker = oldHook;\n invoker.fns.push(wrappedHook);\n }\n else {\n // existing plain hook\n invoker = createFnInvoker([oldHook, wrappedHook]);\n }\n }\n invoker.merged = true;\n def[hookKey] = invoker;\n}\n\nfunction extractPropsFromVNodeData(data, Ctor, tag) {\n // we are only extracting raw values here.\n // validation and default values are handled in the child\n // component itself.\n var propOptions = Ctor.options.props;\n if (isUndef(propOptions)) {\n return;\n }\n var res = {};\n var attrs = data.attrs, props = data.props;\n if (isDef(attrs) || isDef(props)) {\n for (var key in propOptions) {\n var altKey = hyphenate(key);\n if (process.env.NODE_ENV !== 'production') {\n var keyInLowerCase = key.toLowerCase();\n if (key !== keyInLowerCase && attrs && hasOwn(attrs, keyInLowerCase)) {\n tip(\"Prop \\\"\".concat(keyInLowerCase, \"\\\" is passed to component \") +\n \"\".concat(formatComponentName(\n // @ts-expect-error tag is string\n tag || Ctor), \", but the declared prop name is\") +\n \" \\\"\".concat(key, \"\\\". \") +\n \"Note that HTML attributes are case-insensitive and camelCased \" +\n \"props need to use their kebab-case equivalents when using in-DOM \" +\n \"templates. You should probably use \\\"\".concat(altKey, \"\\\" instead of \\\"\").concat(key, \"\\\".\"));\n }\n }\n checkProp(res, props, key, altKey, true) ||\n checkProp(res, attrs, key, altKey, false);\n }\n }\n return res;\n}\nfunction checkProp(res, hash, key, altKey, preserve) {\n if (isDef(hash)) {\n if (hasOwn(hash, key)) {\n res[key] = hash[key];\n if (!preserve) {\n delete hash[key];\n }\n return true;\n }\n else if (hasOwn(hash, altKey)) {\n res[key] = hash[altKey];\n if (!preserve) {\n delete hash[altKey];\n }\n return true;\n }\n }\n return false;\n}\n\n// The template compiler attempts to minimize the need for normalization by\n// statically analyzing the template at compile time.\n//\n// For plain HTML markup, normalization can be completely skipped because the\n// generated render function is guaranteed to return Array. There are\n// two cases where extra normalization is needed:\n// 1. When the children contains components - because a functional component\n// may return an Array instead of a single root. In this case, just a simple\n// normalization is needed - if any child is an Array, we flatten the whole\n// thing with Array.prototype.concat. It is guaranteed to be only 1-level deep\n// because functional components already normalize their own children.\nfunction simpleNormalizeChildren(children) {\n for (var i = 0; i < children.length; i++) {\n if (isArray(children[i])) {\n return Array.prototype.concat.apply([], children);\n }\n }\n return children;\n}\n// 2. When the children contains constructs that always generated nested Arrays,\n// e.g.