fatsify核心功能示例测试!!!
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267
node_modules/fast-uri/lib/schemes.js
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267
node_modules/fast-uri/lib/schemes.js
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'use strict'
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const { isUUID } = require('./utils')
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const URN_REG = /([\da-z][\d\-a-z]{0,31}):((?:[\w!$'()*+,\-.:;=@]|%[\da-f]{2})+)/iu
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const supportedSchemeNames = /** @type {const} */ (['http', 'https', 'ws',
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'wss', 'urn', 'urn:uuid'])
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/** @typedef {supportedSchemeNames[number]} SchemeName */
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/**
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* @param {string} name
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* @returns {name is SchemeName}
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*/
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function isValidSchemeName (name) {
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return supportedSchemeNames.indexOf(/** @type {*} */ (name)) !== -1
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}
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/**
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* @callback SchemeFn
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* @param {import('../types/index').URIComponent} component
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* @param {import('../types/index').Options} options
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* @returns {import('../types/index').URIComponent}
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*/
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/**
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* @typedef {Object} SchemeHandler
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* @property {SchemeName} scheme - The scheme name.
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* @property {boolean} [domainHost] - Indicates if the scheme supports domain hosts.
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* @property {SchemeFn} parse - Function to parse the URI component for this scheme.
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* @property {SchemeFn} serialize - Function to serialize the URI component for this scheme.
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* @property {boolean} [skipNormalize] - Indicates if normalization should be skipped for this scheme.
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* @property {boolean} [absolutePath] - Indicates if the scheme uses absolute paths.
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* @property {boolean} [unicodeSupport] - Indicates if the scheme supports Unicode.
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*/
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/**
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* @param {import('../types/index').URIComponent} wsComponent
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* @returns {boolean}
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*/
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function wsIsSecure (wsComponent) {
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if (wsComponent.secure === true) {
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return true
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} else if (wsComponent.secure === false) {
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return false
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} else if (wsComponent.scheme) {
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return (
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wsComponent.scheme.length === 3 &&
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(wsComponent.scheme[0] === 'w' || wsComponent.scheme[0] === 'W') &&
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(wsComponent.scheme[1] === 's' || wsComponent.scheme[1] === 'S') &&
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(wsComponent.scheme[2] === 's' || wsComponent.scheme[2] === 'S')
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)
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} else {
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return false
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}
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}
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/** @type {SchemeFn} */
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function httpParse (component) {
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if (!component.host) {
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component.error = component.error || 'HTTP URIs must have a host.'
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}
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return component
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}
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/** @type {SchemeFn} */
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function httpSerialize (component) {
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const secure = String(component.scheme).toLowerCase() === 'https'
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// normalize the default port
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if (component.port === (secure ? 443 : 80) || component.port === '') {
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component.port = undefined
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}
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// normalize the empty path
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if (!component.path) {
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component.path = '/'
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}
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// NOTE: We do not parse query strings for HTTP URIs
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// as WWW Form Url Encoded query strings are part of the HTML4+ spec,
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// and not the HTTP spec.
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return component
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}
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/** @type {SchemeFn} */
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function wsParse (wsComponent) {
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// indicate if the secure flag is set
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wsComponent.secure = wsIsSecure(wsComponent)
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// construct resouce name
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wsComponent.resourceName = (wsComponent.path || '/') + (wsComponent.query ? '?' + wsComponent.query : '')
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wsComponent.path = undefined
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wsComponent.query = undefined
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return wsComponent
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}
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/** @type {SchemeFn} */
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function wsSerialize (wsComponent) {
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// normalize the default port
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if (wsComponent.port === (wsIsSecure(wsComponent) ? 443 : 80) || wsComponent.port === '') {
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wsComponent.port = undefined
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}
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// ensure scheme matches secure flag
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if (typeof wsComponent.secure === 'boolean') {
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wsComponent.scheme = (wsComponent.secure ? 'wss' : 'ws')
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wsComponent.secure = undefined
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}
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// reconstruct path from resource name
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if (wsComponent.resourceName) {
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const [path, query] = wsComponent.resourceName.split('?')
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wsComponent.path = (path && path !== '/' ? path : undefined)
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wsComponent.query = query
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wsComponent.resourceName = undefined
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}
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// forbid fragment component
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wsComponent.fragment = undefined
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return wsComponent
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}
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/** @type {SchemeFn} */
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function urnParse (urnComponent, options) {
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if (!urnComponent.path) {
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urnComponent.error = 'URN can not be parsed'
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return urnComponent
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}
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const matches = urnComponent.path.match(URN_REG)
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if (matches) {
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const scheme = options.scheme || urnComponent.scheme || 'urn'
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urnComponent.nid = matches[1].toLowerCase()
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urnComponent.nss = matches[2]
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const urnScheme = `${scheme}:${options.nid || urnComponent.nid}`
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const schemeHandler = getSchemeHandler(urnScheme)
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urnComponent.path = undefined
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if (schemeHandler) {
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urnComponent = schemeHandler.parse(urnComponent, options)
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}
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} else {
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urnComponent.error = urnComponent.error || 'URN can not be parsed.'
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}
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return urnComponent
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}
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/** @type {SchemeFn} */
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function urnSerialize (urnComponent, options) {
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if (urnComponent.nid === undefined) {
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throw new Error('URN without nid cannot be serialized')
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}
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const scheme = options.scheme || urnComponent.scheme || 'urn'
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const nid = urnComponent.nid.toLowerCase()
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const urnScheme = `${scheme}:${options.nid || nid}`
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const schemeHandler = getSchemeHandler(urnScheme)
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if (schemeHandler) {
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urnComponent = schemeHandler.serialize(urnComponent, options)
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}
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const uriComponent = urnComponent
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const nss = urnComponent.nss
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uriComponent.path = `${nid || options.nid}:${nss}`
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options.skipEscape = true
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return uriComponent
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}
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/** @type {SchemeFn} */
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function urnuuidParse (urnComponent, options) {
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const uuidComponent = urnComponent
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uuidComponent.uuid = uuidComponent.nss
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uuidComponent.nss = undefined
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if (!options.tolerant && (!uuidComponent.uuid || !isUUID(uuidComponent.uuid))) {
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uuidComponent.error = uuidComponent.error || 'UUID is not valid.'
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}
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return uuidComponent
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}
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/** @type {SchemeFn} */
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function urnuuidSerialize (uuidComponent) {
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const urnComponent = uuidComponent
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// normalize UUID
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urnComponent.nss = (uuidComponent.uuid || '').toLowerCase()
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return urnComponent
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}
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const http = /** @type {SchemeHandler} */ ({
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scheme: 'http',
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domainHost: true,
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parse: httpParse,
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serialize: httpSerialize
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})
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const https = /** @type {SchemeHandler} */ ({
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scheme: 'https',
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domainHost: http.domainHost,
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parse: httpParse,
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serialize: httpSerialize
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})
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const ws = /** @type {SchemeHandler} */ ({
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scheme: 'ws',
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domainHost: true,
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parse: wsParse,
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serialize: wsSerialize
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})
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const wss = /** @type {SchemeHandler} */ ({
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scheme: 'wss',
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domainHost: ws.domainHost,
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parse: ws.parse,
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serialize: ws.serialize
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})
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const urn = /** @type {SchemeHandler} */ ({
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scheme: 'urn',
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parse: urnParse,
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serialize: urnSerialize,
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skipNormalize: true
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})
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const urnuuid = /** @type {SchemeHandler} */ ({
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scheme: 'urn:uuid',
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parse: urnuuidParse,
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serialize: urnuuidSerialize,
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skipNormalize: true
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})
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const SCHEMES = /** @type {Record<SchemeName, SchemeHandler>} */ ({
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http,
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https,
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ws,
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wss,
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urn,
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'urn:uuid': urnuuid
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})
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Object.setPrototypeOf(SCHEMES, null)
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/**
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* @param {string|undefined} scheme
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* @returns {SchemeHandler|undefined}
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*/
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function getSchemeHandler (scheme) {
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return (
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scheme && (
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SCHEMES[/** @type {SchemeName} */ (scheme)] ||
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SCHEMES[/** @type {SchemeName} */(scheme.toLowerCase())])
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) ||
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undefined
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}
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module.exports = {
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wsIsSecure,
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SCHEMES,
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isValidSchemeName,
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getSchemeHandler,
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}
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