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(function(o, m, k, k2) {\n    if (k2 === undefined) k2 = k;\n    Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });\n}) : (function(o, m, k, k2) {\n    if (k2 === undefined) k2 = k;\n    o[k2] = m[k];\n}));\nvar __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {\n    Object.defineProperty(o, \"default\", { enumerable: true, value: v });\n}) : function(o, v) {\n    o[\"default\"] = v;\n});\nvar __importStar = (this && this.__importStar) || function (mod) {\n    if (mod && mod.__esModule) return mod;\n    var result = {};\n    if (mod != null) for (var k in mod) if (k !== \"default\" && Object.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);\n    __setModuleDefault(result, mod);\n    return result;\n};\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.issue = exports.issueCommand = void 0;\nconst os = __importStar(require(\"os\"));\nconst utils_1 = require(\"./utils\");\n/**\n * Commands\n *\n * Command Format:\n *   ::name key=value,key=value::message\n *\n * Examples:\n *   ::warning::This is the message\n *   ::set-env name=MY_VAR::some value\n */\nfunction issueCommand(command, properties, message) {\n    const cmd = new Command(command, properties, message);\n    process.stdout.write(cmd.toString() + os.EOL);\n}\nexports.issueCommand = issueCommand;\nfunction issue(name, message = '') {\n    issueCommand(name, {}, message);\n}\nexports.issue = issue;\nconst CMD_STRING = '::';\nclass Command {\n    constructor(command, properties, message) {\n        if (!command) {\n            command = 'missing.command';\n        }\n        this.command = command;\n        this.properties = properties;\n        this.message = message;\n    }\n    toString() {\n        let cmdStr = CMD_STRING + this.command;\n        if (this.properties && Object.keys(this.properties).length > 0) {\n            cmdStr += ' ';\n            let first = true;\n            for (const key in this.properties) {\n                if (this.properties.hasOwnProperty(key)) {\n                    const val = this.properties[key];\n                    if (val) {\n                        if (first) {\n                            first = false;\n                        }\n                        else {\n                            cmdStr += ',';\n                        }\n                        cmdStr += `${key}=${escapeProperty(val)}`;\n                    }\n                }\n            }\n        }\n        cmdStr += `${CMD_STRING}${escapeData(this.message)}`;\n        return cmdStr;\n    }\n}\nfunction escapeData(s) {\n    return utils_1.toCommandValue(s)\n        .replace(/%/g, '%25')\n        .replace(/\\r/g, '%0D')\n        .replace(/\\n/g, '%0A');\n}\nfunction escapeProperty(s) {\n    return utils_1.toCommandValue(s)\n        .replace(/%/g, '%25')\n        .replace(/\\r/g, '%0D')\n        .replace(/\\n/g, '%0A')\n        .replace(/:/g, '%3A')\n        .replace(/,/g, '%2C');\n}\n//# sourceMappingURL=command.js.map","\"use strict\";\nvar __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {\n    if (k2 === undefined) k2 = k;\n    Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });\n}) : (function(o, m, k, k2) {\n    if (k2 === undefined) k2 = k;\n    o[k2] = m[k];\n}));\nvar __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {\n    Object.defineProperty(o, \"default\", { enumerable: true, value: v });\n}) : function(o, v) {\n    o[\"default\"] = v;\n});\nvar __importStar = (this && this.__importStar) || function (mod) {\n    if (mod && mod.__esModule) return mod;\n    var result = {};\n    if (mod != null) for (var k in mod) if (k !== \"default\" && Object.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);\n    __setModuleDefault(result, mod);\n    return result;\n};\nvar __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {\n    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }\n    return new (P || (P = Promise))(function (resolve, reject) {\n        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }\n        function rejected(value) { try { step(generator[\"throw\"](value)); } catch (e) { reject(e); } }\n        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }\n        step((generator = generator.apply(thisArg, _arguments || [])).next());\n    });\n};\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.getIDToken = exports.getState = exports.saveState = exports.group = exports.endGroup = exports.startGroup = exports.info = exports.notice = exports.warning = exports.error = exports.debug = exports.isDebug = exports.setFailed = exports.setCommandEcho = exports.setOutput = exports.getBooleanInput = exports.getMultilineInput = exports.getInput = exports.addPath = exports.setSecret = exports.exportVariable = exports.ExitCode = void 0;\nconst command_1 = require(\"./command\");\nconst file_command_1 = require(\"./file-command\");\nconst utils_1 = require(\"./utils\");\nconst os = __importStar(require(\"os\"));\nconst path = __importStar(require(\"path\"));\nconst oidc_utils_1 = require(\"./oidc-utils\");\n/**\n * The code to exit an action\n */\nvar ExitCode;\n(function (ExitCode) {\n    /**\n     * A code indicating that the action was successful\n     */\n    ExitCode[ExitCode[\"Success\"] = 0] = \"Success\";\n    /**\n     * A code indicating that the action was a failure\n     */\n    ExitCode[ExitCode[\"Failure\"] = 1] = \"Failure\";\n})(ExitCode = exports.ExitCode || (exports.ExitCode = {}));\n//-----------------------------------------------------------------------\n// Variables\n//-----------------------------------------------------------------------\n/**\n * Sets env variable for this action and future actions in the job\n * @param name the name of the variable to set\n * @param val the value of the variable. Non-string values will be converted to a string via JSON.stringify\n */\n// eslint-disable-next-line @typescript-eslint/no-explicit-any\nfunction exportVariable(name, val) {\n    const convertedVal = utils_1.toCommandValue(val);\n    process.env[name] = convertedVal;\n    const filePath = process.env['GITHUB_ENV'] || '';\n    if (filePath) {\n        const delimiter = '_GitHubActionsFileCommandDelimeter_';\n        const commandValue = `${name}<<${delimiter}${os.EOL}${convertedVal}${os.EOL}${delimiter}`;\n        file_command_1.issueCommand('ENV', commandValue);\n    }\n    else {\n        command_1.issueCommand('set-env', { name }, convertedVal);\n    }\n}\nexports.exportVariable = exportVariable;\n/**\n * Registers a secret which will get masked from logs\n * @param secret value of the secret\n */\nfunction setSecret(secret) {\n    command_1.issueCommand('add-mask', {}, secret);\n}\nexports.setSecret = setSecret;\n/**\n * Prepends inputPath to the PATH (for this action and future actions)\n * @param inputPath\n */\nfunction addPath(inputPath) {\n    const filePath = process.env['GITHUB_PATH'] || '';\n    if (filePath) {\n        file_command_1.issueCommand('PATH', inputPath);\n    }\n    else {\n        command_1.issueCommand('add-path', {}, inputPath);\n    }\n    process.env['PATH'] = `${inputPath}${path.delimiter}${process.env['PATH']}`;\n}\nexports.addPath = addPath;\n/**\n * Gets the value of an input.\n * Unless trimWhitespace is set to false in InputOptions, the value is also trimmed.\n * Returns an empty string if the value is not defined.\n *\n * @param     name     name of the input to get\n * @param     options  optional. See InputOptions.\n * @returns   string\n */\nfunction getInput(name, options) {\n    const val = process.env[`INPUT_${name.replace(/ /g, '_').toUpperCase()}`] || '';\n    if (options && options.required && !val) {\n        throw new Error(`Input required and not supplied: ${name}`);\n    }\n    if (options && options.trimWhitespace === false) {\n        return val;\n    }\n    return val.trim();\n}\nexports.getInput = getInput;\n/**\n * Gets the values of an multiline input.  Each value is also trimmed.\n *\n * @param     name     name of the input to get\n * @param     options  optional. See InputOptions.\n * @returns   string[]\n *\n */\nfunction getMultilineInput(name, options) {\n    const inputs = getInput(name, options)\n        .split('\\n')\n        .filter(x => x !== '');\n    return inputs;\n}\nexports.getMultilineInput = getMultilineInput;\n/**\n * Gets the input value of the boolean type in the YAML 1.2 \"core schema\" specification.\n * Support boolean input list: `true | True | TRUE | false | False | FALSE` .\n * The return value is also in boolean type.\n * ref: https://yaml.org/spec/1.2/spec.html#id2804923\n *\n * @param     name     name of the input to get\n * @param     options  optional. See InputOptions.\n * @returns   boolean\n */\nfunction getBooleanInput(name, options) {\n    const trueValue = ['true', 'True', 'TRUE'];\n    const falseValue = ['false', 'False', 'FALSE'];\n    const val = getInput(name, options);\n    if (trueValue.includes(val))\n        return true;\n    if (falseValue.includes(val))\n        return false;\n    throw new TypeError(`Input does not meet YAML 1.2 \"Core Schema\" specification: ${name}\\n` +\n        `Support boolean input list: \\`true | True | TRUE | false | False | FALSE\\``);\n}\nexports.getBooleanInput = getBooleanInput;\n/**\n * Sets the value of an output.\n *\n * @param     name     name of the output to set\n * @param     value    value to store. Non-string values will be converted to a string via JSON.stringify\n */\n// eslint-disable-next-line @typescript-eslint/no-explicit-any\nfunction setOutput(name, value) {\n    process.stdout.write(os.EOL);\n    command_1.issueCommand('set-output', { name }, value);\n}\nexports.setOutput = setOutput;\n/**\n * Enables or disables the echoing of commands into stdout for the rest of the step.\n * Echoing is disabled by default if ACTIONS_STEP_DEBUG is not set.\n *\n */\nfunction setCommandEcho(enabled) {\n    command_1.issue('echo', enabled ? 'on' : 'off');\n}\nexports.setCommandEcho = setCommandEcho;\n//-----------------------------------------------------------------------\n// Results\n//-----------------------------------------------------------------------\n/**\n * Sets the action status to failed.\n * When the action exits it will be with an exit code of 1\n * @param message add error issue message\n */\nfunction setFailed(message) {\n    process.exitCode = ExitCode.Failure;\n    error(message);\n}\nexports.setFailed = setFailed;\n//-----------------------------------------------------------------------\n// Logging Commands\n//-----------------------------------------------------------------------\n/**\n * Gets whether Actions Step Debug is on or not\n */\nfunction isDebug() {\n    return process.env['RUNNER_DEBUG'] === '1';\n}\nexports.isDebug = isDebug;\n/**\n * Writes debug message to user log\n * @param message debug message\n */\nfunction debug(message) {\n    command_1.issueCommand('debug', {}, message);\n}\nexports.debug = debug;\n/**\n * Adds an error issue\n * @param message error issue message. Errors will be converted to string via toString()\n * @param properties optional properties to add to the annotation.\n */\nfunction error(message, properties = {}) {\n    command_1.issueCommand('error', utils_1.toCommandProperties(properties), message instanceof Error ? message.toString() : message);\n}\nexports.error = error;\n/**\n * Adds a warning issue\n * @param message warning issue message. Errors will be converted to string via toString()\n * @param properties optional properties to add to the annotation.\n */\nfunction warning(message, properties = {}) {\n    command_1.issueCommand('warning', utils_1.toCommandProperties(properties), message instanceof Error ? message.toString() : message);\n}\nexports.warning = warning;\n/**\n * Adds a notice issue\n * @param message notice issue message. Errors will be converted to string via toString()\n * @param properties optional properties to add to the annotation.\n */\nfunction notice(message, properties = {}) {\n    command_1.issueCommand('notice', utils_1.toCommandProperties(properties), message instanceof Error ? message.toString() : message);\n}\nexports.notice = notice;\n/**\n * Writes info to log with console.log.\n * @param message info message\n */\nfunction info(message) {\n    process.stdout.write(message + os.EOL);\n}\nexports.info = info;\n/**\n * Begin an output group.\n *\n * Output until the next `groupEnd` will be foldable in this group\n *\n * @param name The name of the output group\n */\nfunction startGroup(name) {\n    command_1.issue('group', name);\n}\nexports.startGroup = startGroup;\n/**\n * End an output group.\n */\nfunction endGroup() {\n    command_1.issue('endgroup');\n}\nexports.endGroup = endGroup;\n/**\n * Wrap an asynchronous function call in a group.\n *\n * Returns the same type as the function itself.\n *\n * @param name The name of the group\n * @param fn The function to wrap in the group\n */\nfunction group(name, fn) {\n    return __awaiter(this, void 0, void 0, function* () {\n        startGroup(name);\n        let result;\n        try {\n            result = yield fn();\n        }\n        finally {\n            endGroup();\n        }\n        return result;\n    });\n}\nexports.group = group;\n//-----------------------------------------------------------------------\n// Wrapper action state\n//-----------------------------------------------------------------------\n/**\n * Saves state for current action, the state can only be retrieved by this action's post job execution.\n *\n * @param     name     name of the state to store\n * @param     value    value to store. Non-string values will be converted to a string via JSON.stringify\n */\n// eslint-disable-next-line @typescript-eslint/no-explicit-any\nfunction saveState(name, value) {\n    command_1.issueCommand('save-state', { name }, value);\n}\nexports.saveState = saveState;\n/**\n * Gets the value of an state set by this action's main execution.\n *\n * @param     name     name of the state to get\n * @returns   string\n */\nfunction getState(name) {\n    return process.env[`STATE_${name}`] || '';\n}\nexports.getState = getState;\nfunction getIDToken(aud) {\n    return __awaiter(this, void 0, void 0, function* () {\n        return yield oidc_utils_1.OidcClient.getIDToken(aud);\n    });\n}\nexports.getIDToken = getIDToken;\n//# sourceMappingURL=core.js.map","\"use strict\";\n// For internal use, subject to change.\nvar __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {\n    if (k2 === undefined) k2 = k;\n    Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });\n}) : (function(o, m, k, k2) {\n    if (k2 === undefined) k2 = k;\n    o[k2] = m[k];\n}));\nvar __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {\n    Object.defineProperty(o, \"default\", { enumerable: true, value: v });\n}) : function(o, v) {\n    o[\"default\"] = v;\n});\nvar __importStar = (this && this.__importStar) || function (mod) {\n    if (mod && mod.__esModule) return mod;\n    var result = {};\n    if (mod != null) for (var k in mod) if (k !== \"default\" && Object.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);\n    __setModuleDefault(result, mod);\n    return result;\n};\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.issueCommand = void 0;\n// We use any as a valid input type\n/* eslint-disable @typescript-eslint/no-explicit-any */\nconst fs = __importStar(require(\"fs\"));\nconst os = __importStar(require(\"os\"));\nconst utils_1 = require(\"./utils\");\nfunction issueCommand(command, message) {\n    const filePath = process.env[`GITHUB_${command}`];\n    if (!filePath) {\n        throw new Error(`Unable to find environment variable for file command ${command}`);\n    }\n    if (!fs.existsSync(filePath)) {\n        throw new Error(`Missing file at path: ${filePath}`);\n    }\n    fs.appendFileSync(filePath, `${utils_1.toCommandValue(message)}${os.EOL}`, {\n        encoding: 'utf8'\n    });\n}\nexports.issueCommand = issueCommand;\n//# sourceMappingURL=file-command.js.map","\"use strict\";\nvar __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {\n    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }\n    return new (P || (P = Promise))(function (resolve, reject) {\n        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }\n        function rejected(value) { try { step(generator[\"throw\"](value)); } catch (e) { reject(e); } }\n        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }\n        step((generator = generator.apply(thisArg, _arguments || [])).next());\n    });\n};\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.OidcClient = void 0;\nconst http_client_1 = require(\"@actions/http-client\");\nconst auth_1 = require(\"@actions/http-client/auth\");\nconst core_1 = require(\"./core\");\nclass OidcClient {\n    static createHttpClient(allowRetry = true, maxRetry = 10) {\n        const requestOptions = {\n            allowRetries: allowRetry,\n            maxRetries: maxRetry\n        };\n        return new http_client_1.HttpClient('actions/oidc-client', [new auth_1.BearerCredentialHandler(OidcClient.getRequestToken())], requestOptions);\n    }\n    static getRequestToken() {\n        const token = process.env['ACTIONS_ID_TOKEN_REQUEST_TOKEN'];\n        if (!token) {\n            throw new Error('Unable to get ACTIONS_ID_TOKEN_REQUEST_TOKEN env variable');\n        }\n        return token;\n    }\n    static getIDTokenUrl() {\n        const runtimeUrl = process.env['ACTIONS_ID_TOKEN_REQUEST_URL'];\n        if (!runtimeUrl) {\n            throw new Error('Unable to get ACTIONS_ID_TOKEN_REQUEST_URL env variable');\n        }\n        return runtimeUrl;\n    }\n    static getCall(id_token_url) {\n        var _a;\n        return __awaiter(this, void 0, void 0, function* () {\n            const httpclient = OidcClient.createHttpClient();\n            const res = yield httpclient\n                .getJson(id_token_url)\n                .catch(error => {\n                throw new Error(`Failed to get ID Token. \\n \n        Error Code : ${error.statusCode}\\n \n        Error Message: ${error.result.message}`);\n            });\n            const id_token = (_a = res.result) === null || _a === void 0 ? void 0 : _a.value;\n            if (!id_token) {\n                throw new Error('Response json body do not have ID Token field');\n            }\n            return id_token;\n        });\n    }\n    static getIDToken(audience) {\n        return __awaiter(this, void 0, void 0, function* () {\n            try {\n                // New ID Token is requested from action service\n                let id_token_url = OidcClient.getIDTokenUrl();\n                if (audience) {\n                    const encodedAudience = encodeURIComponent(audience);\n                    id_token_url = `${id_token_url}&audience=${encodedAudience}`;\n                }\n                core_1.debug(`ID token url is ${id_token_url}`);\n                const id_token = yield OidcClient.getCall(id_token_url);\n                core_1.setSecret(id_token);\n                return id_token;\n            }\n            catch (error) {\n                throw new Error(`Error message: ${error.message}`);\n            }\n        });\n    }\n}\nexports.OidcClient = OidcClient;\n//# sourceMappingURL=oidc-utils.js.map","\"use strict\";\n// We use any as a valid input type\n/* eslint-disable @typescript-eslint/no-explicit-any */\nObject.defineProperty(exports, \"__esModule\", { value: true });\nexports.toCommandProperties = exports.toCommandValue = void 0;\n/**\n * Sanitizes an input into a string so it can be passed into issueCommand safely\n * @param input input to sanitize into a string\n */\nfunction toCommandValue(input) {\n    if (input === null || input === undefined) {\n        return '';\n    }\n    else if (typeof input === 'string' || input instanceof String) {\n        return input;\n    }\n    return JSON.stringify(input);\n}\nexports.toCommandValue = toCommandValue;\n/**\n *\n * @param annotationProperties\n * @returns The command properties to send with the actual annotation command\n * See IssueCommandProperties: https://github.com/actions/runner/blob/main/src/Runner.Worker/ActionCommandManager.cs#L646\n */\nfunction toCommandProperties(annotationProperties) {\n    if (!Object.keys(annotationProperties).length) {\n        return {};\n    }\n    return {\n        title: annotationProperties.title,\n        file: annotationProperties.file,\n        line: annotationProperties.startLine,\n        endLine: annotationProperties.endLine,\n        col: annotationProperties.startColumn,\n        endColumn: annotationProperties.endColumn\n    };\n}\nexports.toCommandProperties = toCommandProperties;\n//# sourceMappingURL=utils.js.map","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nclass BasicCredentialHandler {\n    constructor(username, password) {\n        this.username = username;\n        this.password = password;\n    }\n    prepareRequest(options) {\n        options.headers['Authorization'] =\n            'Basic ' +\n                Buffer.from(this.username + ':' + this.password).toString('base64');\n    }\n    // This handler cannot handle 401\n    canHandleAuthentication(response) {\n        return false;\n    }\n    handleAuthentication(httpClient, requestInfo, objs) {\n        return null;\n    }\n}\nexports.BasicCredentialHandler = BasicCredentialHandler;\nclass BearerCredentialHandler {\n    constructor(token) {\n        this.token = token;\n    }\n    // currently implements pre-authorization\n    // TODO: support preAuth = false where it hooks on 401\n    prepareRequest(options) {\n        options.headers['Authorization'] = 'Bearer ' + this.token;\n    }\n    // This handler cannot handle 401\n    canHandleAuthentication(response) {\n        return false;\n    }\n    handleAuthentication(httpClient, requestInfo, objs) {\n        return null;\n    }\n}\nexports.BearerCredentialHandler = BearerCredentialHandler;\nclass PersonalAccessTokenCredentialHandler {\n    constructor(token) {\n        this.token = token;\n    }\n    // currently implements pre-authorization\n    // TODO: support preAuth = false where it hooks on 401\n    prepareRequest(options) {\n        options.headers['Authorization'] =\n            'Basic ' + Buffer.from('PAT:' + this.token).toString('base64');\n    }\n    // This handler cannot handle 401\n    canHandleAuthentication(response) {\n        return false;\n    }\n    handleAuthentication(httpClient, requestInfo, objs) {\n        return null;\n    }\n}\nexports.PersonalAccessTokenCredentialHandler = PersonalAccessTokenCredentialHandler;\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nconst http = require(\"http\");\nconst https = require(\"https\");\nconst pm = require(\"./proxy\");\nlet tunnel;\nvar HttpCodes;\n(function (HttpCodes) {\n    HttpCodes[HttpCodes[\"OK\"] = 200] = \"OK\";\n    HttpCodes[HttpCodes[\"MultipleChoices\"] = 300] = \"MultipleChoices\";\n    HttpCodes[HttpCodes[\"MovedPermanently\"] = 301] = \"MovedPermanently\";\n    HttpCodes[HttpCodes[\"ResourceMoved\"] = 302] = \"ResourceMoved\";\n    HttpCodes[HttpCodes[\"SeeOther\"] = 303] = \"SeeOther\";\n    HttpCodes[HttpCodes[\"NotModified\"] = 304] = \"NotModified\";\n    HttpCodes[HttpCodes[\"UseProxy\"] = 305] = \"UseProxy\";\n    HttpCodes[HttpCodes[\"SwitchProxy\"] = 306] = \"SwitchProxy\";\n    HttpCodes[HttpCodes[\"TemporaryRedirect\"] = 307] = \"TemporaryRedirect\";\n    HttpCodes[HttpCodes[\"PermanentRedirect\"] = 308] = \"PermanentRedirect\";\n    HttpCodes[HttpCodes[\"BadRequest\"] = 400] = \"BadRequest\";\n    HttpCodes[HttpCodes[\"Unauthorized\"] = 401] = \"Unauthorized\";\n    HttpCodes[HttpCodes[\"PaymentRequired\"] = 402] = \"PaymentRequired\";\n    HttpCodes[HttpCodes[\"Forbidden\"] = 403] = \"Forbidden\";\n    HttpCodes[HttpCodes[\"NotFound\"] = 404] = \"NotFound\";\n    HttpCodes[HttpCodes[\"MethodNotAllowed\"] = 405] = \"MethodNotAllowed\";\n    HttpCodes[HttpCodes[\"NotAcceptable\"] = 406] = \"NotAcceptable\";\n    HttpCodes[HttpCodes[\"ProxyAuthenticationRequired\"] = 407] = \"ProxyAuthenticationRequired\";\n    HttpCodes[HttpCodes[\"RequestTimeout\"] = 408] = \"RequestTimeout\";\n    HttpCodes[HttpCodes[\"Conflict\"] = 409] = \"Conflict\";\n    HttpCodes[HttpCodes[\"Gone\"] = 410] = \"Gone\";\n    HttpCodes[HttpCodes[\"TooManyRequests\"] = 429] = \"TooManyRequests\";\n    HttpCodes[HttpCodes[\"InternalServerError\"] = 500] = \"InternalServerError\";\n    HttpCodes[HttpCodes[\"NotImplemented\"] = 501] = \"NotImplemented\";\n    HttpCodes[HttpCodes[\"BadGateway\"] = 502] = \"BadGateway\";\n    HttpCodes[HttpCodes[\"ServiceUnavailable\"] = 503] = \"ServiceUnavailable\";\n    HttpCodes[HttpCodes[\"GatewayTimeout\"] = 504] = \"GatewayTimeout\";\n})(HttpCodes = exports.HttpCodes || (exports.HttpCodes = {}));\nvar Headers;\n(function (Headers) {\n    Headers[\"Accept\"] = \"accept\";\n    Headers[\"ContentType\"] = \"content-type\";\n})(Headers = exports.Headers || (exports.Headers = {}));\nvar MediaTypes;\n(function (MediaTypes) {\n    MediaTypes[\"ApplicationJson\"] = \"application/json\";\n})(MediaTypes = exports.MediaTypes || (exports.MediaTypes = {}));\n/**\n * Returns the proxy URL, depending upon the supplied url and proxy environment variables.\n * @param serverUrl  The server URL where the request will be sent. For example, https://api.github.com\n */\nfunction getProxyUrl(serverUrl) {\n    let proxyUrl = pm.getProxyUrl(new URL(serverUrl));\n    return proxyUrl ? proxyUrl.href : '';\n}\nexports.getProxyUrl = getProxyUrl;\nconst HttpRedirectCodes = [\n    HttpCodes.MovedPermanently,\n    HttpCodes.ResourceMoved,\n    HttpCodes.SeeOther,\n    HttpCodes.TemporaryRedirect,\n    HttpCodes.PermanentRedirect\n];\nconst HttpResponseRetryCodes = [\n    HttpCodes.BadGateway,\n    HttpCodes.ServiceUnavailable,\n    HttpCodes.GatewayTimeout\n];\nconst RetryableHttpVerbs = ['OPTIONS', 'GET', 'DELETE', 'HEAD'];\nconst ExponentialBackoffCeiling = 10;\nconst ExponentialBackoffTimeSlice = 5;\nclass HttpClientError extends Error {\n    constructor(message, statusCode) {\n        super(message);\n        this.name = 'HttpClientError';\n        this.statusCode = statusCode;\n        Object.setPrototypeOf(this, HttpClientError.prototype);\n    }\n}\nexports.HttpClientError = HttpClientError;\nclass HttpClientResponse {\n    constructor(message) {\n        this.message = message;\n    }\n    readBody() {\n        return new Promise(async (resolve, reject) => {\n            let output = Buffer.alloc(0);\n            this.message.on('data', (chunk) => {\n                output = Buffer.concat([output, chunk]);\n            });\n            this.message.on('end', () => {\n                resolve(output.toString());\n            });\n        });\n    }\n}\nexports.HttpClientResponse = HttpClientResponse;\nfunction isHttps(requestUrl) {\n    let parsedUrl = new URL(requestUrl);\n    return parsedUrl.protocol === 'https:';\n}\nexports.isHttps = isHttps;\nclass HttpClient {\n    constructor(userAgent, handlers, requestOptions) {\n        this._ignoreSslError = false;\n        this._allowRedirects = true;\n        this._allowRedirectDowngrade = false;\n        this._maxRedirects = 50;\n        this._allowRetries = false;\n        this._maxRetries = 1;\n        this._keepAlive = false;\n        this._disposed = false;\n        this.userAgent = userAgent;\n        this.handlers = handlers || [];\n        this.requestOptions = requestOptions;\n        if (requestOptions) {\n            if (requestOptions.ignoreSslError != null) {\n                this._ignoreSslError = requestOptions.ignoreSslError;\n            }\n            this._socketTimeout = requestOptions.socketTimeout;\n            if (requestOptions.allowRedirects != null) {\n                this._allowRedirects = requestOptions.allowRedirects;\n            }\n            if (requestOptions.allowRedirectDowngrade != null) {\n                this._allowRedirectDowngrade = requestOptions.allowRedirectDowngrade;\n            }\n            if (requestOptions.maxRedirects != null) {\n                this._maxRedirects = Math.max(requestOptions.maxRedirects, 0);\n            }\n            if (requestOptions.keepAlive != null) {\n                this._keepAlive = requestOptions.keepAlive;\n            }\n            if (requestOptions.allowRetries != null) {\n                this._allowRetries = requestOptions.allowRetries;\n            }\n            if (requestOptions.maxRetries != null) {\n                this._maxRetries = requestOptions.maxRetries;\n            }\n        }\n    }\n    options(requestUrl, additionalHeaders) {\n        return this.request('OPTIONS', requestUrl, null, additionalHeaders || {});\n    }\n    get(requestUrl, additionalHeaders) {\n        return this.request('GET', requestUrl, null, additionalHeaders || {});\n    }\n    del(requestUrl, additionalHeaders) {\n        return this.request('DELETE', requestUrl, null, additionalHeaders || {});\n    }\n    post(requestUrl, data, additionalHeaders) {\n        return this.request('POST', requestUrl, data, additionalHeaders || {});\n    }\n    patch(requestUrl, data, additionalHeaders) {\n        return this.request('PATCH', requestUrl, data, additionalHeaders || {});\n    }\n    put(requestUrl, data, additionalHeaders) {\n        return this.request('PUT', requestUrl, data, additionalHeaders || {});\n    }\n    head(requestUrl, additionalHeaders) {\n        return this.request('HEAD', requestUrl, null, additionalHeaders || {});\n    }\n    sendStream(verb, requestUrl, stream, additionalHeaders) {\n        return this.request(verb, requestUrl, stream, additionalHeaders);\n    }\n    /**\n     * Gets a typed object from an endpoint\n     * Be aware that not found returns a null.  Other errors (4xx, 5xx) reject the promise\n     */\n    async getJson(requestUrl, additionalHeaders = {}) {\n        additionalHeaders[Headers.Accept] = this._getExistingOrDefaultHeader(additionalHeaders, Headers.Accept, MediaTypes.ApplicationJson);\n        let res = await this.get(requestUrl, additionalHeaders);\n        return this._processResponse(res, this.requestOptions);\n    }\n    async postJson(requestUrl, obj, additionalHeaders = {}) {\n        let data = JSON.stringify(obj, null, 2);\n        additionalHeaders[Headers.Accept] = this._getExistingOrDefaultHeader(additionalHeaders, Headers.Accept, MediaTypes.ApplicationJson);\n        additionalHeaders[Headers.ContentType] = this._getExistingOrDefaultHeader(additionalHeaders, Headers.ContentType, MediaTypes.ApplicationJson);\n        let res = await this.post(requestUrl, data, additionalHeaders);\n        return this._processResponse(res, this.requestOptions);\n    }\n    async putJson(requestUrl, obj, additionalHeaders = {}) {\n        let data = JSON.stringify(obj, null, 2);\n        additionalHeaders[Headers.Accept] = this._getExistingOrDefaultHeader(additionalHeaders, Headers.Accept, MediaTypes.ApplicationJson);\n        additionalHeaders[Headers.ContentType] = this._getExistingOrDefaultHeader(additionalHeaders, Headers.ContentType, MediaTypes.ApplicationJson);\n        let res = await this.put(requestUrl, data, additionalHeaders);\n        return this._processResponse(res, this.requestOptions);\n    }\n    async patchJson(requestUrl, obj, additionalHeaders = {}) {\n        let data = JSON.stringify(obj, null, 2);\n        additionalHeaders[Headers.Accept] = this._getExistingOrDefaultHeader(additionalHeaders, Headers.Accept, MediaTypes.ApplicationJson);\n        additionalHeaders[Headers.ContentType] = this._getExistingOrDefaultHeader(additionalHeaders, Headers.ContentType, MediaTypes.ApplicationJson);\n        let res = await this.patch(requestUrl, data, additionalHeaders);\n        return this._processResponse(res, this.requestOptions);\n    }\n    /**\n     * Makes a raw http request.\n     * All other methods such as get, post, patch, and request ultimately call this.\n     * Prefer get, del, post and patch\n     */\n    async request(verb, requestUrl, data, headers) {\n        if (this._disposed) {\n            throw new Error('Client has already been disposed.');\n        }\n        let parsedUrl = new URL(requestUrl);\n        let info = this._prepareRequest(verb, parsedUrl, headers);\n        // Only perform retries on reads since writes may not be idempotent.\n        let maxTries = this._allowRetries && RetryableHttpVerbs.indexOf(verb) != -1\n            ? this._maxRetries + 1\n            : 1;\n        let numTries = 0;\n        let response;\n        while (numTries < maxTries) {\n            response = await this.requestRaw(info, data);\n            // Check if it's an authentication challenge\n            if (response &&\n                response.message &&\n                response.message.statusCode === HttpCodes.Unauthorized) {\n                let authenticationHandler;\n                for (let i = 0; i < this.handlers.length; i++) {\n                    if (this.handlers[i].canHandleAuthentication(response)) {\n                        authenticationHandler = this.handlers[i];\n                        break;\n                    }\n                }\n                if (authenticationHandler) {\n                    return authenticationHandler.handleAuthentication(this, info, data);\n                }\n                else {\n                    // We have received an unauthorized response but have no handlers to handle it.\n                    // Let the response return to the caller.\n                    return response;\n                }\n            }\n            let redirectsRemaining = this._maxRedirects;\n            while (HttpRedirectCodes.indexOf(response.message.statusCode) != -1 &&\n                this._allowRedirects &&\n                redirectsRemaining > 0) {\n                const redirectUrl = response.message.headers['location'];\n                if (!redirectUrl) {\n                    // if there's no location to redirect to, we won't\n                    break;\n                }\n                let parsedRedirectUrl = new URL(redirectUrl);\n                if (parsedUrl.protocol == 'https:' &&\n                    parsedUrl.protocol != parsedRedirectUrl.protocol &&\n                    !this._allowRedirectDowngrade) {\n                    throw new Error('Redirect from HTTPS to HTTP protocol. This downgrade is not allowed for security reasons. If you want to allow this behavior, set the allowRedirectDowngrade option to true.');\n                }\n                // we need to finish reading the response before reassigning response\n                // which will leak the open socket.\n                await response.readBody();\n                // strip authorization header if redirected to a different hostname\n                if (parsedRedirectUrl.hostname !== parsedUrl.hostname) {\n                    for (let header in headers) {\n                        // header names are case insensitive\n                        if (header.toLowerCase() === 'authorization') {\n                            delete headers[header];\n                        }\n                    }\n                }\n                // let's make the request with the new redirectUrl\n                info = this._prepareRequest(verb, parsedRedirectUrl, headers);\n                response = await this.requestRaw(info, data);\n                redirectsRemaining--;\n            }\n            if (HttpResponseRetryCodes.indexOf(response.message.statusCode) == -1) {\n                // If not a retry code, return immediately instead of retrying\n                return response;\n            }\n            numTries += 1;\n            if (numTries < maxTries) {\n                await response.readBody();\n                await this._performExponentialBackoff(numTries);\n            }\n        }\n        return response;\n    }\n    /**\n     * Needs to be called if keepAlive is set to true in request options.\n     */\n    dispose() {\n        if (this._agent) {\n            this._agent.destroy();\n        }\n        this._disposed = true;\n    }\n    /**\n     * Raw request.\n     * @param info\n     * @param data\n     */\n    requestRaw(info, data) {\n        return new Promise((resolve, reject) => {\n            let callbackForResult = function (err, res) {\n                if (err) {\n                    reject(err);\n                }\n                resolve(res);\n            };\n            this.requestRawWithCallback(info, data, callbackForResult);\n        });\n    }\n    /**\n     * Raw request with callback.\n     * @param info\n     * @param data\n     * @param onResult\n     */\n    requestRawWithCallback(info, data, onResult) {\n        let socket;\n        if (typeof data === 'string') {\n            info.options.headers['Content-Length'] = Buffer.byteLength(data, 'utf8');\n        }\n        let callbackCalled = false;\n        let handleResult = (err, res) => {\n            if (!callbackCalled) {\n                callbackCalled = true;\n                onResult(err, res);\n            }\n        };\n        let req = info.httpModule.request(info.options, (msg) => {\n            let res = new HttpClientResponse(msg);\n            handleResult(null, res);\n        });\n        req.on('socket', sock => {\n            socket = sock;\n        });\n        // If we ever get disconnected, we want the socket to timeout eventually\n        req.setTimeout(this._socketTimeout || 3 * 60000, () => {\n            if (socket) {\n                socket.end();\n            }\n            handleResult(new Error('Request timeout: ' + info.options.path), null);\n        });\n        req.on('error', function (err) {\n            // err has statusCode property\n            // res should have headers\n            handleResult(err, null);\n        });\n        if (data && typeof data === 'string') {\n            req.write(data, 'utf8');\n        }\n        if (data && typeof data !== 'string') {\n            data.on('close', function () {\n                req.end();\n            });\n            data.pipe(req);\n        }\n        else {\n            req.end();\n        }\n    }\n    /**\n     * Gets an http agent. This function is useful when you need an http agent that handles\n     * routing through a proxy server - depending upon the url and proxy environment variables.\n     * @param serverUrl  The server URL where the request will be sent. For example, https://api.github.com\n     */\n    getAgent(serverUrl) {\n        let parsedUrl = new URL(serverUrl);\n        return this._getAgent(parsedUrl);\n    }\n    _prepareRequest(method, requestUrl, headers) {\n        const info = {};\n        info.parsedUrl = requestUrl;\n        const usingSsl = info.parsedUrl.protocol === 'https:';\n        info.httpModule = usingSsl ? https : http;\n        const defaultPort = usingSsl ? 443 : 80;\n        info.options = {};\n        info.options.host = info.parsedUrl.hostname;\n        info.options.port = info.parsedUrl.port\n            ? parseInt(info.parsedUrl.port)\n            : defaultPort;\n        info.options.path =\n            (info.parsedUrl.pathname || '') + (info.parsedUrl.search || '');\n        info.options.method = method;\n        info.options.headers = this._mergeHeaders(headers);\n        if (this.userAgent != null) {\n            info.options.headers['user-agent'] = this.userAgent;\n        }\n        info.options.agent = this._getAgent(info.parsedUrl);\n        // gives handlers an opportunity to participate\n        if (this.handlers) {\n            this.handlers.forEach(handler => {\n                handler.prepareRequest(info.options);\n            });\n        }\n        return info;\n    }\n    _mergeHeaders(headers) {\n        const lowercaseKeys = obj => Object.keys(obj).reduce((c, k) => ((c[k.toLowerCase()] = obj[k]), c), {});\n        if (this.requestOptions && this.requestOptions.headers) {\n            return Object.assign({}, lowercaseKeys(this.requestOptions.headers), lowercaseKeys(headers));\n        }\n        return lowercaseKeys(headers || {});\n    }\n    _getExistingOrDefaultHeader(additionalHeaders, header, _default) {\n        const lowercaseKeys = obj => Object.keys(obj).reduce((c, k) => ((c[k.toLowerCase()] = obj[k]), c), {});\n        let clientHeader;\n        if (this.requestOptions && this.requestOptions.headers) {\n            clientHeader = lowercaseKeys(this.requestOptions.headers)[header];\n        }\n        return additionalHeaders[header] || clientHeader || _default;\n    }\n    _getAgent(parsedUrl) {\n        let agent;\n        let proxyUrl = pm.getProxyUrl(parsedUrl);\n        let useProxy = proxyUrl && proxyUrl.hostname;\n        if (this._keepAlive && useProxy) {\n            agent = this._proxyAgent;\n        }\n        if (this._keepAlive && !useProxy) {\n            agent = this._agent;\n        }\n        // if agent is already assigned use that agent.\n        if (!!agent) {\n            return agent;\n        }\n        const usingSsl = parsedUrl.protocol === 'https:';\n        let maxSockets = 100;\n        if (!!this.requestOptions) {\n            maxSockets = this.requestOptions.maxSockets || http.globalAgent.maxSockets;\n        }\n        if (useProxy) {\n            // If using proxy, need tunnel\n            if (!tunnel) {\n                tunnel = require('tunnel');\n            }\n            const agentOptions = {\n                maxSockets: maxSockets,\n                keepAlive: this._keepAlive,\n                proxy: {\n                    ...((proxyUrl.username || proxyUrl.password) && {\n                        proxyAuth: `${proxyUrl.username}:${proxyUrl.password}`\n                    }),\n                    host: proxyUrl.hostname,\n                    port: proxyUrl.port\n                }\n            };\n            let tunnelAgent;\n            const overHttps = proxyUrl.protocol === 'https:';\n            if (usingSsl) {\n                tunnelAgent = overHttps ? tunnel.httpsOverHttps : tunnel.httpsOverHttp;\n            }\n            else {\n                tunnelAgent = overHttps ? tunnel.httpOverHttps : tunnel.httpOverHttp;\n            }\n            agent = tunnelAgent(agentOptions);\n            this._proxyAgent = agent;\n        }\n        // if reusing agent across request and tunneling agent isn't assigned create a new agent\n        if (this._keepAlive && !agent) {\n            const options = { keepAlive: this._keepAlive, maxSockets: maxSockets };\n            agent = usingSsl ? new https.Agent(options) : new http.Agent(options);\n            this._agent = agent;\n        }\n        // if not using private agent and tunnel agent isn't setup then use global agent\n        if (!agent) {\n            agent = usingSsl ? https.globalAgent : http.globalAgent;\n        }\n        if (usingSsl && this._ignoreSslError) {\n            // we don't want to set NODE_TLS_REJECT_UNAUTHORIZED=0 since that will affect request for entire process\n            // http.RequestOptions doesn't expose a way to modify RequestOptions.agent.options\n            // we have to cast it to any and change it directly\n            agent.options = Object.assign(agent.options || {}, {\n                rejectUnauthorized: false\n            });\n        }\n        return agent;\n    }\n    _performExponentialBackoff(retryNumber) {\n        retryNumber = Math.min(ExponentialBackoffCeiling, retryNumber);\n        const ms = ExponentialBackoffTimeSlice * Math.pow(2, retryNumber);\n        return new Promise(resolve => setTimeout(() => resolve(), ms));\n    }\n    static dateTimeDeserializer(key, value) {\n        if (typeof value === 'string') {\n            let a = new Date(value);\n            if (!isNaN(a.valueOf())) {\n                return a;\n            }\n        }\n        return value;\n    }\n    async _processResponse(res, options) {\n        return new Promise(async (resolve, reject) => {\n            const statusCode = res.message.statusCode;\n            const response = {\n                statusCode: statusCode,\n                result: null,\n                headers: {}\n            };\n            // not found leads to null obj returned\n            if (statusCode == HttpCodes.NotFound) {\n                resolve(response);\n            }\n            let obj;\n            let contents;\n            // get the result from the body\n            try {\n                contents = await res.readBody();\n                if (contents && contents.length > 0) {\n                    if (options && options.deserializeDates) {\n                        obj = JSON.parse(contents, HttpClient.dateTimeDeserializer);\n                    }\n                    else {\n                        obj = JSON.parse(contents);\n                    }\n                    response.result = obj;\n                }\n                response.headers = res.message.headers;\n            }\n            catch (err) {\n                // Invalid resource (contents not json);  leaving result obj null\n            }\n            // note that 3xx redirects are handled by the http layer.\n            if (statusCode > 299) {\n                let msg;\n                // if exception/error in body, attempt to get better error\n                if (obj && obj.message) {\n                    msg = obj.message;\n                }\n                else if (contents && contents.length > 0) {\n                    // it may be the case that the exception is in the body message as string\n                    msg = contents;\n                }\n                else {\n                    msg = 'Failed request: (' + statusCode + ')';\n                }\n                let err = new HttpClientError(msg, statusCode);\n                err.result = response.result;\n                reject(err);\n            }\n            else {\n                resolve(response);\n            }\n        });\n    }\n}\nexports.HttpClient = HttpClient;\n","\"use strict\";\nObject.defineProperty(exports, \"__esModule\", { value: true });\nfunction getProxyUrl(reqUrl) {\n    let usingSsl = reqUrl.protocol === 'https:';\n    let proxyUrl;\n    if (checkBypass(reqUrl)) {\n        return proxyUrl;\n    }\n    let proxyVar;\n    if (usingSsl) {\n        proxyVar = process.env['https_proxy'] || process.env['HTTPS_PROXY'];\n    }\n    else {\n        proxyVar = process.env['http_proxy'] || process.env['HTTP_PROXY'];\n    }\n    if (proxyVar) {\n        proxyUrl = new URL(proxyVar);\n    }\n    return proxyUrl;\n}\nexports.getProxyUrl = getProxyUrl;\nfunction checkBypass(reqUrl) {\n    if (!reqUrl.hostname) {\n        return false;\n    }\n    let noProxy = process.env['no_proxy'] || process.env['NO_PROXY'] || '';\n    if (!noProxy) {\n        return false;\n    }\n    // Determine the request port\n    let reqPort;\n    if (reqUrl.port) {\n        reqPort = Number(reqUrl.port);\n    }\n    else if (reqUrl.protocol === 'http:') {\n        reqPort = 80;\n    }\n    else if (reqUrl.protocol === 'https:') {\n        reqPort = 443;\n    }\n    // Format the request hostname and hostname with port\n    let upperReqHosts = [reqUrl.hostname.toUpperCase()];\n    if (typeof reqPort === 'number') {\n        upperReqHosts.push(`${upperReqHosts[0]}:${reqPort}`);\n    }\n    // Compare request host against noproxy\n    for (let upperNoProxyItem of noProxy\n        .split(',')\n        .map(x => x.trim().toUpperCase())\n        .filter(x => x)) {\n        if (upperReqHosts.some(x => x === upperNoProxyItem)) {\n            return true;\n        }\n    }\n    return false;\n}\nexports.checkBypass = checkBypass;\n","/*! check-type@v0.4.11 - 2014-06-28 */\n!function(){\"use strict\";var a,b,c;a=function(_){var a,b={};return a=function(c){var d={};return d.is=function(a){var d;if(!_.isString(a))throw new Error(\"Provided type is not a string\");if(d=b[\"is\"+a.toLowerCase()],!_.isFunction(d))throw new Error(\"Unsupported type\",a);return d(c)},d.is.not=function(a){return!this(a)},d.has=function(a){var b,d,e=!0;if(!_.isString(a))throw new Error(\"Provided path is not a string\");return b=a.split(\".\"),d=c,b.forEach(function(a){e&&_.isObject(d)&&!_.isUndefined(d[a])?d=d[a]:e=!1}),e},d.matches=function(b){var d=!0;if(!_.isObject(b))throw new Error(\"Provided stucture is not an object\");return _.isObject(c)?(_.each(b,function(b,e){a(c[e]).is.not(b)&&(d=!1)}),d):!1},d},a.init=function(a,c){var d,e;return _.isUndefined(a)?(a=_,e=_.without(_.functions(a),\"isEqual\")):e=_.functions(a),d=_.reduce(e,function(b,c){return b[c]=a[c],b},{}),Object.keys(d).forEach(function(a){a.match(/^is[A-Z]/)&&(_.isUndefined(b[a.toLowerCase()])||c)&&(b[a.toLowerCase()]=d[a])}),this},a.clear=function(){return b={},this},a},\"undefined\"!=typeof module&&(module.exports=a(require(\"underscore\"))),\"undefined\"!=typeof define?define([\"underscore\"],function(_){return a(_)}):\"undefined\"!=typeof window&&(b=a(window._),c=function(){var a=window.check;return function(){return b===window.check&&(window.check=a),b}}(),b.noConflict=c,window.check=b)}();","'use strict';\n\n\nvar loader = require('./lib/loader');\nvar dumper = require('./lib/dumper');\n\n\nfunction renamed(from, to) {\n  return function () {\n    throw new Error('Function yaml.' + from + ' is removed in js-yaml 4. ' +\n      'Use yaml.' + to + ' instead, which is now safe by default.');\n  };\n}\n\n\nmodule.exports.Type                = require('./lib/type');\nmodule.exports.Schema              = require('./lib/schema');\nmodule.exports.FAILSAFE_SCHEMA     = require('./lib/schema/failsafe');\nmodule.exports.JSON_SCHEMA         = require('./lib/schema/json');\nmodule.exports.CORE_SCHEMA         = require('./lib/schema/core');\nmodule.exports.DEFAULT_SCHEMA      = require('./lib/schema/default');\nmodule.exports.load                = loader.load;\nmodule.exports.loadAll             = loader.loadAll;\nmodule.exports.dump                = dumper.dump;\nmodule.exports.YAMLException       = require('./lib/exception');\n\n// Re-export all types in case user wants to create custom schema\nmodule.exports.types = {\n  binary:    require('./lib/type/binary'),\n  float:     require('./lib/type/float'),\n  map:       require('./lib/type/map'),\n  null:      require('./lib/type/null'),\n  pairs:     require('./lib/type/pairs'),\n  set:       require('./lib/type/set'),\n  timestamp: require('./lib/type/timestamp'),\n  bool:      require('./lib/type/bool'),\n  int:       require('./lib/type/int'),\n  merge:     require('./lib/type/merge'),\n  omap:      require('./lib/type/omap'),\n  seq:       require('./lib/type/seq'),\n  str:       require('./lib/type/str')\n};\n\n// Removed functions from JS-YAML 3.0.x\nmodule.exports.safeLoad            = renamed('safeLoad', 'load');\nmodule.exports.safeLoadAll         = renamed('safeLoadAll', 'loadAll');\nmodule.exports.safeDump            = renamed('safeDump', 'dump');\n","'use strict';\n\n\nfunction isNothing(subject) {\n  return (typeof subject === 'undefined') || (subject === null);\n}\n\n\nfunction isObject(subject) {\n  return (typeof subject === 'object') && (subject !== null);\n}\n\n\nfunction toArray(sequence) {\n  if (Array.isArray(sequence)) return sequence;\n  else if (isNothing(sequence)) return [];\n\n  return [ sequence ];\n}\n\n\nfunction extend(target, source) {\n  var index, length, key, sourceKeys;\n\n  if (source) {\n    sourceKeys = Object.keys(source);\n\n    for (index = 0, length = sourceKeys.length; index < length; index += 1) {\n      key = sourceKeys[index];\n      target[key] = source[key];\n    }\n  }\n\n  return target;\n}\n\n\nfunction repeat(string, count) {\n  var result = '', cycle;\n\n  for (cycle = 0; cycle < count; cycle += 1) {\n    result += string;\n  }\n\n  return result;\n}\n\n\nfunction isNegativeZero(number) {\n  return (number === 0) && (Number.NEGATIVE_INFINITY === 1 / number);\n}\n\n\nmodule.exports.isNothing      = isNothing;\nmodule.exports.isObject       = isObject;\nmodule.exports.toArray        = toArray;\nmodule.exports.repeat         = repeat;\nmodule.exports.isNegativeZero = isNegativeZero;\nmodule.exports.extend         = extend;\n","'use strict';\n\n/*eslint-disable no-use-before-define*/\n\nvar common              = require('./common');\nvar YAMLException       = require('./exception');\nvar DEFAULT_SCHEMA      = require('./schema/default');\n\nvar _toString       = Object.prototype.toString;\nvar _hasOwnProperty = Object.prototype.hasOwnProperty;\n\nvar CHAR_BOM                  = 0xFEFF;\nvar CHAR_TAB                  = 0x09; /* Tab */\nvar CHAR_LINE_FEED            = 0x0A; /* LF */\nvar CHAR_CARRIAGE_RETURN      = 0x0D; /* CR */\nvar CHAR_SPACE                = 0x20; /* Space */\nvar CHAR_EXCLAMATION          = 0x21; /* ! */\nvar CHAR_DOUBLE_QUOTE         = 0x22; /* \" */\nvar CHAR_SHARP                = 0x23; /* # */\nvar CHAR_PERCENT              = 0x25; /* % */\nvar CHAR_AMPERSAND            = 0x26; /* & */\nvar CHAR_SINGLE_QUOTE         = 0x27; /* ' */\nvar CHAR_ASTERISK             = 0x2A; /* * */\nvar CHAR_COMMA                = 0x2C; /* , */\nvar CHAR_MINUS                = 0x2D; /* - */\nvar CHAR_COLON                = 0x3A; /* : */\nvar CHAR_EQUALS               = 0x3D; /* = */\nvar CHAR_GREATER_THAN         = 0x3E; /* > */\nvar CHAR_QUESTION             = 0x3F; /* ? */\nvar CHAR_COMMERCIAL_AT        = 0x40; /* @ */\nvar CHAR_LEFT_SQUARE_BRACKET  = 0x5B; /* [ */\nvar CHAR_RIGHT_SQUARE_BRACKET = 0x5D; /* ] */\nvar CHAR_GRAVE_ACCENT         = 0x60; /* ` */\nvar CHAR_LEFT_CURLY_BRACKET   = 0x7B; /* { */\nvar CHAR_VERTICAL_LINE        = 0x7C; /* | */\nvar CHAR_RIGHT_CURLY_BRACKET  = 0x7D; /* } */\n\nvar ESCAPE_SEQUENCES = {};\n\nESCAPE_SEQUENCES[0x00]   = '\\\\0';\nESCAPE_SEQUENCES[0x07]   = '\\\\a';\nESCAPE_SEQUENCES[0x08]   = '\\\\b';\nESCAPE_SEQUENCES[0x09]   = '\\\\t';\nESCAPE_SEQUENCES[0x0A]   = '\\\\n';\nESCAPE_SEQUENCES[0x0B]   = '\\\\v';\nESCAPE_SEQUENCES[0x0C]   = '\\\\f';\nESCAPE_SEQUENCES[0x0D]   = '\\\\r';\nESCAPE_SEQUENCES[0x1B]   = '\\\\e';\nESCAPE_SEQUENCES[0x22]   = '\\\\\"';\nESCAPE_SEQUENCES[0x5C]   = '\\\\\\\\';\nESCAPE_SEQUENCES[0x85]   = '\\\\N';\nESCAPE_SEQUENCES[0xA0]   = '\\\\_';\nESCAPE_SEQUENCES[0x2028] = '\\\\L';\nESCAPE_SEQUENCES[0x2029] = '\\\\P';\n\nvar DEPRECATED_BOOLEANS_SYNTAX = [\n  'y', 'Y', 'yes', 'Yes', 'YES', 'on', 'On', 'ON',\n  'n', 'N', 'no', 'No', 'NO', 'off', 'Off', 'OFF'\n];\n\nvar DEPRECATED_BASE60_SYNTAX = /^[-+]?[0-9_]+(?::[0-9_]+)+(?:\\.[0-9_]*)?$/;\n\nfunction compileStyleMap(schema, map) {\n  var result, keys, index, length, tag, style, type;\n\n  if (map === null) return {};\n\n  result = {};\n  keys = Object.keys(map);\n\n  for (index = 0, length = keys.length; index < length; index += 1) {\n    tag = keys[index];\n    style = String(map[tag]);\n\n    if (tag.slice(0, 2) === '!!') {\n      tag = 'tag:yaml.org,2002:' + tag.slice(2);\n    }\n    type = schema.compiledTypeMap['fallback'][tag];\n\n    if (type && _hasOwnProperty.call(type.styleAliases, style)) {\n      style = type.styleAliases[style];\n    }\n\n    result[tag] = style;\n  }\n\n  return result;\n}\n\nfunction encodeHex(character) {\n  var string, handle, length;\n\n  string = character.toString(16).toUpperCase();\n\n  if (character <= 0xFF) {\n    handle = 'x';\n    length = 2;\n  } else if (character <= 0xFFFF) {\n    handle = 'u';\n    length = 4;\n  } else if (character <= 0xFFFFFFFF) {\n    handle = 'U';\n    length = 8;\n  } else {\n    throw new YAMLException('code point within a string may not be greater than 0xFFFFFFFF');\n  }\n\n  return '\\\\' + handle + common.repeat('0', length - string.length) + string;\n}\n\n\nvar QUOTING_TYPE_SINGLE = 1,\n    QUOTING_TYPE_DOUBLE = 2;\n\nfunction State(options) {\n  this.schema        = options['schema'] || DEFAULT_SCHEMA;\n  this.indent        = Math.max(1, (options['indent'] || 2));\n  this.noArrayIndent = options['noArrayIndent'] || false;\n  this.skipInvalid   = options['skipInvalid'] || false;\n  this.flowLevel     = (common.isNothing(options['flowLevel']) ? -1 : options['flowLevel']);\n  this.styleMap      = compileStyleMap(this.schema, options['styles'] || null);\n  this.sortKeys      = options['sortKeys'] || false;\n  this.lineWidth     = options['lineWidth'] || 80;\n  this.noRefs        = options['noRefs'] || false;\n  this.noCompatMode  = options['noCompatMode'] || false;\n  this.condenseFlow  = options['condenseFlow'] || false;\n  this.quotingType   = options['quotingType'] === '\"' ? QUOTING_TYPE_DOUBLE : QUOTING_TYPE_SINGLE;\n  this.forceQuotes   = options['forceQuotes'] || false;\n  this.replacer      = typeof options['replacer'] === 'function' ? options['replacer'] : null;\n\n  this.implicitTypes = this.schema.compiledImplicit;\n  this.explicitTypes = this.schema.compiledExplicit;\n\n  this.tag = null;\n  this.result = '';\n\n  this.duplicates = [];\n  this.usedDuplicates = null;\n}\n\n// Indents every line in a string. Empty lines (\\n only) are not indented.\nfunction indentString(string, spaces) {\n  var ind = common.repeat(' ', spaces),\n      position = 0,\n      next = -1,\n      result = '',\n      line,\n      length = string.length;\n\n  while (position < length) {\n    next = string.indexOf('\\n', position);\n    if (next === -1) {\n      line = string.slice(position);\n      position = length;\n    } else {\n      line = string.slice(position, next + 1);\n      position = next + 1;\n    }\n\n    if (line.length && line !== '\\n') result += ind;\n\n    result += line;\n  }\n\n  return result;\n}\n\nfunction generateNextLine(state, level) {\n  return '\\n' + common.repeat(' ', state.indent * level);\n}\n\nfunction testImplicitResolving(state, str) {\n  var index, length, type;\n\n  for (index = 0, length = state.implicitTypes.length; index < length; index += 1) {\n    type = state.implicitTypes[index];\n\n    if (type.resolve(str)) {\n      return true;\n    }\n  }\n\n  return false;\n}\n\n// [33] s-white ::= s-space | s-tab\nfunction isWhitespace(c) {\n  return c === CHAR_SPACE || c === CHAR_TAB;\n}\n\n// Returns true if the character can be printed without escaping.\n// From YAML 1.2: \"any allowed characters known to be non-printable\n// should also be escaped. [However,] This isn’t mandatory\"\n// Derived from nb-char - \\t - #x85 - #xA0 - #x2028 - #x2029.\nfunction isPrintable(c) {\n  return  (0x00020 <= c && c <= 0x00007E)\n      || ((0x000A1 <= c && c <= 0x00D7FF) && c !== 0x2028 && c !== 0x2029)\n      || ((0x0E000 <= c && c <= 0x00FFFD) && c !== CHAR_BOM)\n      ||  (0x10000 <= c && c <= 0x10FFFF);\n}\n\n// [34] ns-char ::= nb-char - s-white\n// [27] nb-char ::= c-printable - b-char - c-byte-order-mark\n// [26] b-char  ::= b-line-feed | b-carriage-return\n// Including s-white (for some reason, examples doesn't match specs in this aspect)\n// ns-char ::= c-printable - b-line-feed - b-carriage-return - c-byte-order-mark\nfunction isNsCharOrWhitespace(c) {\n  return isPrintable(c)\n    && c !== CHAR_BOM\n    // - b-char\n    && c !== CHAR_CARRIAGE_RETURN\n    && c !== CHAR_LINE_FEED;\n}\n\n// [127]  ns-plain-safe(c) ::= c = flow-out  ⇒ ns-plain-safe-out\n//                             c = flow-in   ⇒ ns-plain-safe-in\n//                             c = block-key ⇒ ns-plain-safe-out\n//                             c = flow-key  ⇒ ns-plain-safe-in\n// [128] ns-plain-safe-out ::= ns-char\n// [129]  ns-plain-safe-in ::= ns-char - c-flow-indicator\n// [130]  ns-plain-char(c) ::=  ( ns-plain-safe(c) - “:” - “#” )\n//                            | ( /* An ns-char preceding */ “#” )\n//                            | ( “:” /* Followed by an ns-plain-safe(c) */ )\nfunction isPlainSafe(c, prev, inblock) {\n  var cIsNsCharOrWhitespace = isNsCharOrWhitespace(c);\n  var cIsNsChar = cIsNsCharOrWhitespace && !isWhitespace(c);\n  return (\n    // ns-plain-safe\n    inblock ? // c = flow-in\n      cIsNsCharOrWhitespace\n      : cIsNsCharOrWhitespace\n        // - c-flow-indicator\n        && c !== CHAR_COMMA\n        && c !== CHAR_LEFT_SQUARE_BRACKET\n        && c !== CHAR_RIGHT_SQUARE_BRACKET\n        && c !== CHAR_LEFT_CURLY_BRACKET\n        && c !== CHAR_RIGHT_CURLY_BRACKET\n  )\n    // ns-plain-char\n    && c !== CHAR_SHARP // false on '#'\n    && !(prev === CHAR_COLON && !cIsNsChar) // false on ': '\n    || (isNsCharOrWhitespace(prev) && !isWhitespace(prev) && c === CHAR_SHARP) // change to true on '[^ ]#'\n    || (prev === CHAR_COLON && cIsNsChar); // change to true on ':[^ ]'\n}\n\n// Simplified test for values allowed as the first character in plain style.\nfunction isPlainSafeFirst(c) {\n  // Uses a subset of ns-char - c-indicator\n  // where ns-char = nb-char - s-white.\n  // No support of ( ( “?” | “:” | “-” ) /* Followed by an ns-plain-safe(c)) */ ) part\n  return isPrintable(c) && c !== CHAR_BOM\n    && !isWhitespace(c) // - s-white\n    // - (c-indicator ::=\n    // “-” | “?” | “:” | “,” | “[” | “]” | “{” | “}”\n    && c !== CHAR_MINUS\n    && c !== CHAR_QUESTION\n    && c !== CHAR_COLON\n    && c !== CHAR_COMMA\n    && c !== CHAR_LEFT_SQUARE_BRACKET\n    && c !== CHAR_RIGHT_SQUARE_BRACKET\n    && c !== CHAR_LEFT_CURLY_BRACKET\n    && c !== CHAR_RIGHT_CURLY_BRACKET\n    // | “#” | “&” | “*” | “!” | “|” | “=” | “>” | “'” | “\"”\n    && c !== CHAR_SHARP\n    && c !== CHAR_AMPERSAND\n    && c !== CHAR_ASTERISK\n    && c !== CHAR_EXCLAMATION\n    && c !== CHAR_VERTICAL_LINE\n    && c !== CHAR_EQUALS\n    && c !== CHAR_GREATER_THAN\n    && c !== CHAR_SINGLE_QUOTE\n    && c !== CHAR_DOUBLE_QUOTE\n    // | “%” | “@” | “`”)\n    && c !== CHAR_PERCENT\n    && c !== CHAR_COMMERCIAL_AT\n    && c !== CHAR_GRAVE_ACCENT;\n}\n\n// Simplified test for values allowed as the last character in plain style.\nfunction isPlainSafeLast(c) {\n  // just not whitespace or colon, it will be checked to be plain character later\n  return !isWhitespace(c) && c !== CHAR_COLON;\n}\n\n// Same as 'string'.codePointAt(pos), but works in older browsers.\nfunction codePointAt(string, pos) {\n  var first = string.charCodeAt(pos), second;\n  if (first >= 0xD800 && first <= 0xDBFF && pos + 1 < string.length) {\n    second = string.charCodeAt(pos + 1);\n    if (second >= 0xDC00 && second <= 0xDFFF) {\n      // https://mathiasbynens.be/notes/javascript-encoding#surrogate-formulae\n      return (first - 0xD800) * 0x400 + second - 0xDC00 + 0x10000;\n    }\n  }\n  return first;\n}\n\n// Determines whether block indentation indicator is required.\nfunction needIndentIndicator(string) {\n  var leadingSpaceRe = /^\\n* /;\n  return leadingSpaceRe.test(string);\n}\n\nvar STYLE_PLAIN   = 1,\n    STYLE_SINGLE  = 2,\n    STYLE_LITERAL = 3,\n    STYLE_FOLDED  = 4,\n    STYLE_DOUBLE  = 5;\n\n// Determines which scalar styles are possible and returns the preferred style.\n// lineWidth = -1 => no limit.\n// Pre-conditions: str.length > 0.\n// Post-conditions:\n//    STYLE_PLAIN or STYLE_SINGLE => no \\n are in the string.\n//    STYLE_LITERAL => no lines are suitable for folding (or lineWidth is -1).\n//    STYLE_FOLDED => a line > lineWidth and can be folded (and lineWidth != -1).\nfunction chooseScalarStyle(string, singleLineOnly, indentPerLevel, lineWidth,\n  testAmbiguousType, quotingType, forceQuotes, inblock) {\n\n  var i;\n  var char = 0;\n  var prevChar = null;\n  var hasLineBreak = false;\n  var hasFoldableLine = false; // only checked if shouldTrackWidth\n  var shouldTrackWidth = lineWidth !== -1;\n  var previousLineBreak = -1; // count the first line correctly\n  var plain = isPlainSafeFirst(codePointAt(string, 0))\n          && isPlainSafeLast(codePointAt(string, string.length - 1));\n\n  if (singleLineOnly || forceQuotes) {\n    // Case: no block styles.\n    // Check for disallowed characters to rule out plain and single.\n    for (i = 0; i < string.length; char >= 0x10000 ? i += 2 : i++) {\n      char = codePointAt(string, i);\n      if (!isPrintable(char)) {\n        return STYLE_DOUBLE;\n      }\n      plain = plain && isPlainSafe(char, prevChar, inblock);\n      prevChar = char;\n    }\n  } else {\n    // Case: block styles permitted.\n    for (i = 0; i < string.length; char >= 0x10000 ? i += 2 : i++) {\n      char = codePointAt(string, i);\n      if (char === CHAR_LINE_FEED) {\n        hasLineBreak = true;\n        // Check if any line can be folded.\n        if (shouldTrackWidth) {\n          hasFoldableLine = hasFoldableLine ||\n            // Foldable line = too long, and not more-indented.\n            (i - previousLineBreak - 1 > lineWidth &&\n             string[previousLineBreak + 1] !== ' ');\n          previousLineBreak = i;\n        }\n      } else if (!isPrintable(char)) {\n        return STYLE_DOUBLE;\n      }\n      plain = plain && isPlainSafe(char, prevChar, inblock);\n      prevChar = char;\n    }\n    // in case the end is missing a \\n\n    hasFoldableLine = hasFoldableLine || (shouldTrackWidth &&\n      (i - previousLineBreak - 1 > lineWidth &&\n       string[previousLineBreak + 1] !== ' '));\n  }\n  // Although every style can represent \\n without escaping, prefer block styles\n  // for multiline, since they're more readable and they don't add empty lines.\n  // Also prefer folding a super-long line.\n  if (!hasLineBreak && !hasFoldableLine) {\n    // Strings interpretable as another type have to be quoted;\n    // e.g. the string 'true' vs. the boolean true.\n    if (plain && !forceQuotes && !testAmbiguousType(string)) {\n      return STYLE_PLAIN;\n    }\n    return quotingType === QUOTING_TYPE_DOUBLE ? STYLE_DOUBLE : STYLE_SINGLE;\n  }\n  // Edge case: block indentation indicator can only have one digit.\n  if (indentPerLevel > 9 && needIndentIndicator(string)) {\n    return STYLE_DOUBLE;\n  }\n  // At this point we know block styles are valid.\n  // Prefer literal style unless we want to fold.\n  if (!forceQuotes) {\n    return hasFoldableLine ? STYLE_FOLDED : STYLE_LITERAL;\n  }\n  return quotingType === QUOTING_TYPE_DOUBLE ? STYLE_DOUBLE : STYLE_SINGLE;\n}\n\n// Note: line breaking/folding is implemented for only the folded style.\n// NB. We drop the last trailing newline (if any) of a returned block scalar\n//  since the dumper adds its own newline. This always works:\n//    • No ending newline => unaffected; already using strip \"-\" chomping.\n//    • Ending newline    => removed then restored.\n//  Importantly, this keeps the \"+\" chomp indicator from gaining an extra line.\nfunction writeScalar(state, string, level, iskey, inblock) {\n  state.dump = (function () {\n    if (string.length === 0) {\n      return state.quotingType === QUOTING_TYPE_DOUBLE ? '\"\"' : \"''\";\n    }\n    if (!state.noCompatMode) {\n      if (DEPRECATED_BOOLEANS_SYNTAX.indexOf(string) !== -1 || DEPRECATED_BASE60_SYNTAX.test(string)) {\n        return state.quotingType === QUOTING_TYPE_DOUBLE ? ('\"' + string + '\"') : (\"'\" + string + \"'\");\n      }\n    }\n\n    var indent = state.indent * Math.max(1, level); // no 0-indent scalars\n    // As indentation gets deeper, let the width decrease monotonically\n    // to the lower bound min(state.lineWidth, 40).\n    // Note that this implies\n    //  state.lineWidth ≤ 40 + state.indent: width is fixed at the lower bound.\n    //  state.lineWidth > 40 + state.indent: width decreases until the lower bound.\n    // This behaves better than a constant minimum width which disallows narrower options,\n    // or an indent threshold which causes the width to suddenly increase.\n    var lineWidth = state.lineWidth === -1\n      ? -1 : Math.max(Math.min(state.lineWidth, 40), state.lineWidth - indent);\n\n    // Without knowing if keys are implicit/explicit, assume implicit for safety.\n    var singleLineOnly = iskey\n      // No block styles in flow mode.\n      || (state.flowLevel > -1 && level >= state.flowLevel);\n    function testAmbiguity(string) {\n      return testImplicitResolving(state, string);\n    }\n\n    switch (chooseScalarStyle(string, singleLineOnly, state.indent, lineWidth,\n      testAmbiguity, state.quotingType, state.forceQuotes && !iskey, inblock)) {\n\n      case STYLE_PLAIN:\n        return string;\n      case STYLE_SINGLE:\n        return \"'\" + string.replace(/'/g, \"''\") + \"'\";\n      case STYLE_LITERAL:\n        return '|' + blockHeader(string, state.indent)\n          + dropEndingNewline(indentString(string, indent));\n      case STYLE_FOLDED:\n        return '>' + blockHeader(string, state.indent)\n          + dropEndingNewline(indentString(foldString(string, lineWidth), indent));\n      case STYLE_DOUBLE:\n        return '\"' + escapeString(string, lineWidth) + '\"';\n      default:\n        throw new YAMLException('impossible error: invalid scalar style');\n    }\n  }());\n}\n\n// Pre-conditions: string is valid for a block scalar, 1 <= indentPerLevel <= 9.\nfunction blockHeader(string, indentPerLevel) {\n  var indentIndicator = needIndentIndicator(string) ? String(indentPerLevel) : '';\n\n  // note the special case: the string '\\n' counts as a \"trailing\" empty line.\n  var clip =          string[string.length - 1] === '\\n';\n  var keep = clip && (string[string.length - 2] === '\\n' || string === '\\n');\n  var chomp = keep ? '+' : (clip ? '' : '-');\n\n  return indentIndicator + chomp + '\\n';\n}\n\n// (See the note for writeScalar.)\nfunction dropEndingNewline(string) {\n  return string[string.length - 1] === '\\n' ? string.slice(0, -1) : string;\n}\n\n// Note: a long line without a suitable break point will exceed the width limit.\n// Pre-conditions: every char in str isPrintable, str.length > 0, width > 0.\nfunction foldString(string, width) {\n  // In folded style, $k$ consecutive newlines output as $k+1$ newlines—\n  // unless they're before or after a more-indented line, or at the very\n  // beginning or end, in which case $k$ maps to $k$.\n  // Therefore, parse each chunk as newline(s) followed by a content line.\n  var lineRe = /(\\n+)([^\\n]*)/g;\n\n  // first line (possibly an empty line)\n  var result = (function () {\n    var nextLF = string.indexOf('\\n');\n    nextLF = nextLF !== -1 ? nextLF : string.length;\n    lineRe.lastIndex = nextLF;\n    return foldLine(string.slice(0, nextLF), width);\n  }());\n  // If we haven't reached the first content line yet, don't add an extra \\n.\n  var prevMoreIndented = string[0] === '\\n' || string[0] === ' ';\n  var moreIndented;\n\n  // rest of the lines\n  var match;\n  while ((match = lineRe.exec(string))) {\n    var prefix = match[1], line = match[2];\n    moreIndented = (line[0] === ' ');\n    result += prefix\n      + (!prevMoreIndented && !moreIndented && line !== ''\n        ? '\\n' : '')\n      + foldLine(line, width);\n    prevMoreIndented = moreIndented;\n  }\n\n  return result;\n}\n\n// Greedy line breaking.\n// Picks the longest line under the limit each time,\n// otherwise settles for the shortest line over the limit.\n// NB. More-indented lines *cannot* be folded, as that would add an extra \\n.\nfunction foldLine(line, width) {\n  if (line === '' || line[0] === ' ') return line;\n\n  // Since a more-indented line adds a \\n, breaks can't be followed by a space.\n  var breakRe = / [^ ]/g; // note: the match index will always be <= length-2.\n  var match;\n  // start is an inclusive index. end, curr, and next are exclusive.\n  var start = 0, end, curr = 0, next = 0;\n  var result = '';\n\n  // Invariants: 0 <= start <= length-1.\n  //   0 <= curr <= next <= max(0, length-2). curr - start <= width.\n  // Inside the loop:\n  //   A match implies length >= 2, so curr and next are <= length-2.\n  while ((match = breakRe.exec(line))) {\n    next = match.index;\n    // maintain invariant: curr - start <= width\n    if (next - start > width) {\n      end = (curr > start) ? curr : next; // derive end <= length-2\n      result += '\\n' + line.slice(start, end);\n      // skip the space that was output as \\n\n      start = end + 1;                    // derive start <= length-1\n    }\n    curr = next;\n  }\n\n  // By the invariants, start <= length-1, so there is something left over.\n  // It is either the whole string or a part starting from non-whitespace.\n  result += '\\n';\n  // Insert a break if the remainder is too long and there is a break available.\n  if (line.length - start > width && curr > start) {\n    result += line.slice(start, curr) + '\\n' + line.slice(curr + 1);\n  } else {\n    result += line.slice(start);\n  }\n\n  return result.slice(1); // drop extra \\n joiner\n}\n\n// Escapes a double-quoted string.\nfunction escapeString(string) {\n  var result = '';\n  var char = 0;\n  var escapeSeq;\n\n  for (var i = 0; i < string.length; char >= 0x10000 ? i += 2 : i++) {\n    char = codePointAt(string, i);\n    escapeSeq = ESCAPE_SEQUENCES[char];\n\n    if (!escapeSeq && isPrintable(char)) {\n      result += string[i];\n      if (char >= 0x10000) result += string[i + 1];\n    } else {\n      result += escapeSeq || encodeHex(char);\n    }\n  }\n\n  return result;\n}\n\nfunction writeFlowSequence(state, level, object) {\n  var _result = '',\n      _tag    = state.tag,\n      index,\n      length,\n      value;\n\n  for (index = 0, length = object.length; index < length; index += 1) {\n    value = object[index];\n\n    if (state.replacer) {\n      value = state.replacer.call(object, String(index), value);\n    }\n\n    // Write only valid elements, put null instead of invalid elements.\n    if (writeNode(state, level, value, false, false) ||\n        (typeof value === 'undefined' &&\n         writeNode(state, level, null, false, false))) {\n\n      if (_result !== '') _result += ',' + (!state.condenseFlow ? ' ' : '');\n      _result += state.dump;\n    }\n  }\n\n  state.tag = _tag;\n  state.dump = '[' + _result + ']';\n}\n\nfunction writeBlockSequence(state, level, object, compact) {\n  var _result = '',\n      _tag    = state.tag,\n      index,\n      length,\n      value;\n\n  for (index = 0, length = object.length; index < length; index += 1) {\n    value = object[index];\n\n    if (state.replacer) {\n      value = state.replacer.call(object, String(index), value);\n    }\n\n    // Write only valid elements, put null instead of invalid elements.\n    if (writeNode(state, level + 1, value, true, true, false, true) ||\n        (typeof value === 'undefined' &&\n         writeNode(state, level + 1, null, true, true, false, true))) {\n\n      if (!compact || _result !== '') {\n        _result += generateNextLine(state, level);\n      }\n\n      if (state.dump && CHAR_LINE_FEED === state.dump.charCodeAt(0)) {\n        _result += '-';\n      } else {\n        _result += '- ';\n      }\n\n      _result += state.dump;\n    }\n  }\n\n  state.tag = _tag;\n  state.dump = _result || '[]'; // Empty sequence if no valid values.\n}\n\nfunction writeFlowMapping(state, level, object) {\n  var _result       = '',\n      _tag          = state.tag,\n      objectKeyList = Object.keys(object),\n      index,\n      length,\n      objectKey,\n      objectValue,\n      pairBuffer;\n\n  for (index = 0, length = objectKeyList.length; index < length; index += 1) {\n\n    pairBuffer = '';\n    if (_result !== '') pairBuffer += ', ';\n\n    if (state.condenseFlow) pairBuffer += '\"';\n\n    objectKey = objectKeyList[index];\n    objectValue = object[objectKey];\n\n    if (state.replacer) {\n      objectValue = state.replacer.call(object, objectKey, objectValue);\n    }\n\n    if (!writeNode(state, level, objectKey, false, false)) {\n      continue; // Skip this pair because of invalid key;\n    }\n\n    if (state.dump.length > 1024) pairBuffer += '? ';\n\n    pairBuffer += state.dump + (state.condenseFlow ? '\"' : '') + ':' + (state.condenseFlow ? '' : ' ');\n\n    if (!writeNode(state, level, objectValue, false, false)) {\n      continue; // Skip this pair because of invalid value.\n    }\n\n    pairBuffer += state.dump;\n\n    // Both key and value are valid.\n    _result += pairBuffer;\n  }\n\n  state.tag = _tag;\n  state.dump = '{' + _result + '}';\n}\n\nfunction writeBlockMapping(state, level, object, compact) {\n  var _result       = '',\n      _tag          = state.tag,\n      objectKeyList = Object.keys(object),\n      index,\n      length,\n      objectKey,\n      objectValue,\n      explicitPair,\n      pairBuffer;\n\n  // Allow sorting keys so that the output file is deterministic\n  if (state.sortKeys === true) {\n    // Default sorting\n    objectKeyList.sort();\n  } else if (typeof state.sortKeys === 'function') {\n    // Custom sort function\n    objectKeyList.sort(state.sortKeys);\n  } else if (state.sortKeys) {\n    // Something is wrong\n    throw new YAMLException('sortKeys must be a boolean or a function');\n  }\n\n  for (index = 0, length = objectKeyList.length; index < length; index += 1) {\n    pairBuffer = '';\n\n    if (!compact || _result !== '') {\n      pairBuffer += generateNextLine(state, level);\n    }\n\n    objectKey = objectKeyList[index];\n    objectValue = object[objectKey];\n\n    if (state.replacer) {\n      objectValue = state.replacer.call(object, objectKey, objectValue);\n    }\n\n    if (!writeNode(state, level + 1, objectKey, true, true, true)) {\n      continue; // Skip this pair because of invalid key.\n    }\n\n    explicitPair = (state.tag !== null && state.tag !== '?') ||\n                   (state.dump && state.dump.length > 1024);\n\n    if (explicitPair) {\n      if (state.dump && CHAR_LINE_FEED === state.dump.charCodeAt(0)) {\n        pairBuffer += '?';\n      } else {\n        pairBuffer += '? ';\n      }\n    }\n\n    pairBuffer += state.dump;\n\n    if (explicitPair) {\n      pairBuffer += generateNextLine(state, level);\n    }\n\n    if (!writeNode(state, level + 1, objectValue, true, explicitPair)) {\n      continue; // Skip this pair because of invalid value.\n    }\n\n    if (state.dump && CHAR_LINE_FEED === state.dump.charCodeAt(0)) {\n      pairBuffer += ':';\n    } else {\n      pairBuffer += ': ';\n    }\n\n    pairBuffer += state.dump;\n\n    // Both key and value are valid.\n    _result += pairBuffer;\n  }\n\n  state.tag = _tag;\n  state.dump = _result || '{}'; // Empty mapping if no valid pairs.\n}\n\nfunction detectType(state, object, explicit) {\n  var _result, typeList, index, length, type, style;\n\n  typeList = explicit ? state.explicitTypes : state.implicitTypes;\n\n  for (index = 0, length = typeList.length; index < length; index += 1) {\n    type = typeList[index];\n\n    if ((type.instanceOf  || type.predicate) &&\n        (!type.instanceOf || ((typeof object === 'object') && (object instanceof type.instanceOf))) &&\n        (!type.predicate  || type.predicate(object))) {\n\n      if (explicit) {\n        if (type.multi && type.representName) {\n          state.tag = type.representName(object);\n        } else {\n          state.tag = type.tag;\n        }\n      } else {\n        state.tag = '?';\n      }\n\n      if (type.represent) {\n        style = state.styleMap[type.tag] || type.defaultStyle;\n\n        if (_toString.call(type.represent) === '[object Function]') {\n          _result = type.represent(object, style);\n        } else if (_hasOwnProperty.call(type.represent, style)) {\n          _result = type.represent[style](object, style);\n        } else {\n          throw new YAMLException('!<' + type.tag + '> tag resolver accepts not \"' + style + '\" style');\n        }\n\n        state.dump = _result;\n      }\n\n      return true;\n    }\n  }\n\n  return false;\n}\n\n// Serializes `object` and writes it to global `result`.\n// Returns true on success, or false on invalid object.\n//\nfunction writeNode(state, level, object, block, compact, iskey, isblockseq) {\n  state.tag = null;\n  state.dump = object;\n\n  if (!detectType(state, object, false)) {\n    detectType(state, object, true);\n  }\n\n  var type = _toString.call(state.dump);\n  var inblock = block;\n  var tagStr;\n\n  if (block) {\n    block = (state.flowLevel < 0 || state.flowLevel > level);\n  }\n\n  var objectOrArray = type === '[object Object]' || type === '[object Array]',\n      duplicateIndex,\n      duplicate;\n\n  if (objectOrArray) {\n    duplicateIndex = state.duplicates.indexOf(object);\n    duplicate = duplicateIndex !== -1;\n  }\n\n  if ((state.tag !== null && state.tag !== '?') || duplicate || (state.indent !== 2 && level > 0)) {\n    compact = false;\n  }\n\n  if (duplicate && state.usedDuplicates[duplicateIndex]) {\n    state.dump = '*ref_' + duplicateIndex;\n  } else {\n    if (objectOrArray && duplicate && !state.usedDuplicates[duplicateIndex]) {\n      state.usedDuplicates[duplicateIndex] = true;\n    }\n    if (type === '[object Object]') {\n      if (block && (Object.keys(state.dump).length !== 0)) {\n        writeBlockMapping(state, level, state.dump, compact);\n        if (duplicate) {\n          state.dump = '&ref_' + duplicateIndex + state.dump;\n        }\n      } else {\n        writeFlowMapping(state, level, state.dump);\n        if (duplicate) {\n          state.dump = '&ref_' + duplicateIndex + ' ' + state.dump;\n        }\n      }\n    } else if (type === '[object Array]') {\n      if (block && (state.dump.length !== 0)) {\n        if (state.noArrayIndent && !isblockseq && level > 0) {\n          writeBlockSequence(state, level - 1, state.dump, compact);\n        } else {\n          writeBlockSequence(state, level, state.dump, compact);\n        }\n        if (duplicate) {\n          state.dump = '&ref_' + duplicateIndex + state.dump;\n        }\n      } else {\n        writeFlowSequence(state, level, state.dump);\n        if (duplicate) {\n          state.dump = '&ref_' + duplicateIndex + ' ' + state.dump;\n        }\n      }\n    } else if (type === '[object String]') {\n      if (state.tag !== '?') {\n        writeScalar(state, state.dump, level, iskey, inblock);\n      }\n    } else if (type === '[object Undefined]') {\n      return false;\n    } else {\n      if (state.skipInvalid) return false;\n      throw new YAMLException('unacceptable kind of an object to dump ' + type);\n    }\n\n    if (state.tag !== null && state.tag !== '?') {\n      // Need to encode all characters except those allowed by the spec:\n      //\n      // [35] ns-dec-digit    ::=  [#x30-#x39] /* 0-9 */\n      // [36] ns-hex-digit    ::=  ns-dec-digit\n      //                         | [#x41-#x46] /* A-F */ | [#x61-#x66] /* a-f */\n      // [37] ns-ascii-letter ::=  [#x41-#x5A] /* A-Z */ | [#x61-#x7A] /* a-z */\n      // [38] ns-word-char    ::=  ns-dec-digit | ns-ascii-letter | “-”\n      // [39] ns-uri-char     ::=  “%” ns-hex-digit ns-hex-digit | ns-word-char | “#”\n      //                         | “;” | “/” | “?” | “:” | “@” | “&” | “=” | “+” | “$” | “,”\n      //                         | “_” | “.” | “!” | “~” | “*” | “'” | “(” | “)” | “[” | “]”\n      //\n      // Also need to encode '!' because it has special meaning (end of tag prefix).\n      //\n      tagStr = encodeURI(\n        state.tag[0] === '!' ? state.tag.slice(1) : state.tag\n      ).replace(/!/g, '%21');\n\n      if (state.tag[0] === '!') {\n        tagStr = '!' + tagStr;\n      } else if (tagStr.slice(0, 18) === 'tag:yaml.org,2002:') {\n        tagStr = '!!' + tagStr.slice(18);\n      } else {\n        tagStr = '!<' + tagStr + '>';\n      }\n\n      state.dump = tagStr + ' ' + state.dump;\n    }\n  }\n\n  return true;\n}\n\nfunction getDuplicateReferences(object, state) {\n  var objects = [],\n      duplicatesIndexes = [],\n      index,\n      length;\n\n  inspectNode(object, objects, duplicatesIndexes);\n\n  for (index = 0, length = duplicatesIndexes.length; index < length; index += 1) {\n    state.duplicates.push(objects[duplicatesIndexes[index]]);\n  }\n  state.usedDuplicates = new Array(length);\n}\n\nfunction inspectNode(object, objects, duplicatesIndexes) {\n  var objectKeyList,\n      index,\n      length;\n\n  if (object !== null && typeof object === 'object') {\n    index = objects.indexOf(object);\n    if (index !== -1) {\n      if (duplicatesIndexes.indexOf(index) === -1) {\n        duplicatesIndexes.push(index);\n      }\n    } else {\n      objects.push(object);\n\n      if (Array.isArray(object)) {\n        for (index = 0, length = object.length; index < length; index += 1) {\n          inspectNode(object[index], objects, duplicatesIndexes);\n        }\n      } else {\n        objectKeyList = Object.keys(object);\n\n        for (index = 0, length = objectKeyList.length; index < length; index += 1) {\n          inspectNode(object[objectKeyList[index]], objects, duplicatesIndexes);\n        }\n      }\n    }\n  }\n}\n\nfunction dump(input, options) {\n  options = options || {};\n\n  var state = new State(options);\n\n  if (!state.noRefs) getDuplicateReferences(input, state);\n\n  var value = input;\n\n  if (state.replacer) {\n    value = state.replacer.call({ '': value }, '', value);\n  }\n\n  if (writeNode(state, 0, value, true, true)) return state.dump + '\\n';\n\n  return '';\n}\n\nmodule.exports.dump = dump;\n","// YAML error class. http://stackoverflow.com/questions/8458984\n//\n'use strict';\n\n\nfunction formatError(exception, compact) {\n  var where = '', message = exception.reason || '(unknown reason)';\n\n  if (!exception.mark) return message;\n\n  if (exception.mark.name) {\n    where += 'in \"' + exception.mark.name + '\" ';\n  }\n\n  where += '(' + (exception.mark.line + 1) + ':' + (exception.mark.column + 1) + ')';\n\n  if (!compact && exception.mark.snippet) {\n    where += '\\n\\n' + exception.mark.snippet;\n  }\n\n  return message + ' ' + where;\n}\n\n\nfunction YAMLException(reason, mark) {\n  // Super constructor\n  Error.call(this);\n\n  this.name = 'YAMLException';\n  this.reason = reason;\n  this.mark = mark;\n  this.message = formatError(this, false);\n\n  // Include stack trace in error object\n  if (Error.captureStackTrace) {\n    // Chrome and NodeJS\n    Error.captureStackTrace(this, this.constructor);\n  } else {\n    // FF, IE 10+ and Safari 6+. Fallback for others\n    this.stack = (new Error()).stack || '';\n  }\n}\n\n\n// Inherit from Error\nYAMLException.prototype = Object.create(Error.prototype);\nYAMLException.prototype.constructor = YAMLException;\n\n\nYAMLException.prototype.toString = function toString(compact) {\n  return this.name + ': ' + formatError(this, compact);\n};\n\n\nmodule.exports = YAMLException;\n","'use strict';\n\n/*eslint-disable max-len,no-use-before-define*/\n\nvar common              = require('./common');\nvar YAMLException       = require('./exception');\nvar makeSnippet         = require('./snippet');\nvar DEFAULT_SCHEMA      = require('./schema/default');\n\n\nvar _hasOwnProperty = Object.prototype.hasOwnProperty;\n\n\nvar CONTEXT_FLOW_IN   = 1;\nvar CONTEXT_FLOW_OUT  = 2;\nvar CONTEXT_BLOCK_IN  = 3;\nvar CONTEXT_BLOCK_OUT = 4;\n\n\nvar CHOMPING_CLIP  = 1;\nvar CHOMPING_STRIP = 2;\nvar CHOMPING_KEEP  = 3;\n\n\nvar PATTERN_NON_PRINTABLE         = /[\\x00-\\x08\\x0B\\x0C\\x0E-\\x1F\\x7F-\\x84\\x86-\\x9F\\uFFFE\\uFFFF]|[\\uD800-\\uDBFF](?![\\uDC00-\\uDFFF])|(?:[^\\uD800-\\uDBFF]|^)[\\uDC00-\\uDFFF]/;\nvar PATTERN_NON_ASCII_LINE_BREAKS = /[\\x85\\u2028\\u2029]/;\nvar PATTERN_FLOW_INDICATORS       = /[,\\[\\]\\{\\}]/;\nvar PATTERN_TAG_HANDLE            = /^(?:!|!!|![a-z\\-]+!)$/i;\nvar PATTERN_TAG_URI               = /^(?:!|[^,\\[\\]\\{\\}])(?:%[0-9a-f]{2}|[0-9a-z\\-#;\\/\\?:@&=\\+\\$,_\\.!~\\*'\\(\\)\\[\\]])*$/i;\n\n\nfunction _class(obj) { return Object.prototype.toString.call(obj); }\n\nfunction is_EOL(c) {\n  return (c === 0x0A/* LF */) || (c === 0x0D/* CR */);\n}\n\nfunction is_WHITE_SPACE(c) {\n  return (c === 0x09/* Tab */) || (c === 0x20/* Space */);\n}\n\nfunction is_WS_OR_EOL(c) {\n  return (c === 0x09/* Tab */) ||\n         (c === 0x20/* Space */) ||\n         (c === 0x0A/* LF */) ||\n         (c === 0x0D/* CR */);\n}\n\nfunction is_FLOW_INDICATOR(c) {\n  return c === 0x2C/* , */ ||\n         c === 0x5B/* [ */ ||\n         c === 0x5D/* ] */ ||\n         c === 0x7B/* { */ ||\n         c === 0x7D/* } */;\n}\n\nfunction fromHexCode(c) {\n  var lc;\n\n  if ((0x30/* 0 */ <= c) && (c <= 0x39/* 9 */)) {\n    return c - 0x30;\n  }\n\n  /*eslint-disable no-bitwise*/\n  lc = c | 0x20;\n\n  if ((0x61/* a */ <= lc) && (lc <= 0x66/* f */)) {\n    return lc - 0x61 + 10;\n  }\n\n  return -1;\n}\n\nfunction escapedHexLen(c) {\n  if (c === 0x78/* x */) { return 2; }\n  if (c === 0x75/* u */) { return 4; }\n  if (c === 0x55/* U */) { return 8; }\n  return 0;\n}\n\nfunction fromDecimalCode(c) {\n  if ((0x30/* 0 */ <= c) && (c <= 0x39/* 9 */)) {\n    return c - 0x30;\n  }\n\n  return -1;\n}\n\nfunction simpleEscapeSequence(c) {\n  /* eslint-disable indent */\n  return (c === 0x30/* 0 */) ? '\\x00' :\n        (c === 0x61/* a */) ? '\\x07' :\n        (c === 0x62/* b */) ? '\\x08' :\n        (c === 0x74/* t */) ? '\\x09' :\n        (c === 0x09/* Tab */) ? '\\x09' :\n        (c === 0x6E/* n */) ? '\\x0A' :\n        (c === 0x76/* v */) ? '\\x0B' :\n        (c === 0x66/* f */) ? '\\x0C' :\n        (c === 0x72/* r */) ? '\\x0D' :\n        (c === 0x65/* e */) ? '\\x1B' :\n        (c === 0x20/* Space */) ? ' ' :\n        (c === 0x22/* \" */) ? '\\x22' :\n        (c === 0x2F/* / */) ? '/' :\n        (c === 0x5C/* \\ */) ? '\\x5C' :\n        (c === 0x4E/* N */) ? '\\x85' :\n        (c === 0x5F/* _ */) ? '\\xA0' :\n        (c === 0x4C/* L */) ? '\\u2028' :\n        (c === 0x50/* P */) ? '\\u2029' : '';\n}\n\nfunction charFromCodepoint(c) {\n  if (c <= 0xFFFF) {\n    return String.fromCharCode(c);\n  }\n  // Encode UTF-16 surrogate pair\n  // https://en.wikipedia.org/wiki/UTF-16#Code_points_U.2B010000_to_U.2B10FFFF\n  return String.fromCharCode(\n    ((c - 0x010000) >> 10) + 0xD800,\n    ((c - 0x010000) & 0x03FF) + 0xDC00\n  );\n}\n\nvar simpleEscapeCheck = new Array(256); // integer, for fast access\nvar simpleEscapeMap = new Array(256);\nfor (var i = 0; i < 256; i++) {\n  simpleEscapeCheck[i] = simpleEscapeSequence(i) ? 1 : 0;\n  simpleEscapeMap[i] = simpleEscapeSequence(i);\n}\n\n\nfunction State(input, options) {\n  this.input = input;\n\n  this.filename  = options['filename']  || null;\n  this.schema    = options['schema']    || DEFAULT_SCHEMA;\n  this.onWarning = options['onWarning'] || null;\n  // (Hidden) Remove? makes the loader to expect YAML 1.1 documents\n  // if such documents have no explicit %YAML directive\n  this.legacy    = options['legacy']    || false;\n\n  this.json      = options['json']      || false;\n  this.listener  = options['listener']  || null;\n\n  this.implicitTypes = this.schema.compiledImplicit;\n  this.typeMap       = this.schema.compiledTypeMap;\n\n  this.length     = input.length;\n  this.position   = 0;\n  this.line       = 0;\n  this.lineStart  = 0;\n  this.lineIndent = 0;\n\n  // position of first leading tab in the current line,\n  // used to make sure there are no tabs in the indentation\n  this.firstTabInLine = -1;\n\n  this.documents = [];\n\n  /*\n  this.version;\n  this.checkLineBreaks;\n  this.tagMap;\n  this.anchorMap;\n  this.tag;\n  this.anchor;\n  this.kind;\n  this.result;*/\n\n}\n\n\nfunction generateError(state, message) {\n  var mark = {\n    name:     state.filename,\n    buffer:   state.input.slice(0, -1), // omit trailing \\0\n    position: state.position,\n    line:     state.line,\n    column:   state.position - state.lineStart\n  };\n\n  mark.snippet = makeSnippet(mark);\n\n  return new YAMLException(message, mark);\n}\n\nfunction throwError(state, message) {\n  throw generateError(state, message);\n}\n\nfunction throwWarning(state, message) {\n  if (state.onWarning) {\n    state.onWarning.call(null, generateError(state, message));\n  }\n}\n\n\nvar directiveHandlers = {\n\n  YAML: function handleYamlDirective(state, name, args) {\n\n    var match, major, minor;\n\n    if (state.version !== null) {\n      throwError(state, 'duplication of %YAML directive');\n    }\n\n    if (args.length !== 1) {\n      throwError(state, 'YAML directive accepts exactly one argument');\n    }\n\n    match = /^([0-9]+)\\.([0-9]+)$/.exec(args[0]);\n\n    if (match === null) {\n      throwError(state, 'ill-formed argument of the YAML directive');\n    }\n\n    major = parseInt(match[1], 10);\n    minor = parseInt(match[2], 10);\n\n    if (major !== 1) {\n      throwError(state, 'unacceptable YAML version of the document');\n    }\n\n    state.version = args[0];\n    state.checkLineBreaks = (minor < 2);\n\n    if (minor !== 1 && minor !== 2) {\n      throwWarning(state, 'unsupported YAML version of the document');\n    }\n  },\n\n  TAG: function handleTagDirective(state, name, args) {\n\n    var handle, prefix;\n\n    if (args.length !== 2) {\n      throwError(state, 'TAG directive accepts exactly two arguments');\n    }\n\n    handle = args[0];\n    prefix = args[1];\n\n    if (!PATTERN_TAG_HANDLE.test(handle)) {\n      throwError(state, 'ill-formed tag handle (first argument) of the TAG directive');\n    }\n\n    if (_hasOwnProperty.call(state.tagMap, handle)) {\n      throwError(state, 'there is a previously declared suffix for \"' + handle + '\" tag handle');\n    }\n\n    if (!PATTERN_TAG_URI.test(prefix)) {\n      throwError(state, 'ill-formed tag prefix (second argument) of the TAG directive');\n    }\n\n    try {\n      prefix = decodeURIComponent(prefix);\n    } catch (err) {\n      throwError(state, 'tag prefix is malformed: ' + prefix);\n    }\n\n    state.tagMap[handle] = prefix;\n  }\n};\n\n\nfunction captureSegment(state, start, end, checkJson) {\n  var _position, _length, _character, _result;\n\n  if (start < end) {\n    _result = state.input.slice(start, end);\n\n    if (checkJson) {\n      for (_position = 0, _length = _result.length; _position < _length; _position += 1) {\n        _character = _result.charCodeAt(_position);\n        if (!(_character === 0x09 ||\n              (0x20 <= _character && _character <= 0x10FFFF))) {\n          throwError(state, 'expected valid JSON character');\n        }\n      }\n    } else if (PATTERN_NON_PRINTABLE.test(_result)) {\n      throwError(state, 'the stream contains non-printable characters');\n    }\n\n    state.result += _result;\n  }\n}\n\nfunction mergeMappings(state, destination, source, overridableKeys) {\n  var sourceKeys, key, index, quantity;\n\n  if (!common.isObject(source)) {\n    throwError(state, 'cannot merge mappings; the provided source object is unacceptable');\n  }\n\n  sourceKeys = Object.keys(source);\n\n  for (index = 0, quantity = sourceKeys.length; index < quantity; index += 1) {\n    key = sourceKeys[index];\n\n    if (!_hasOwnProperty.call(destination, key)) {\n      destination[key] = source[key];\n      overridableKeys[key] = true;\n    }\n  }\n}\n\nfunction storeMappingPair(state, _result, overridableKeys, keyTag, keyNode, valueNode,\n  startLine, startLineStart, startPos) {\n\n  var index, quantity;\n\n  // The output is a plain object here, so keys can only be strings.\n  // We need to convert keyNode to a string, but doing so can hang the process\n  // (deeply nested arrays that explode exponentially using aliases).\n  if (Array.isArray(keyNode)) {\n    keyNode = Array.prototype.slice.call(keyNode);\n\n    for (index = 0, quantity = keyNode.length; index < quantity; index += 1) {\n      if (Array.isArray(keyNode[index])) {\n        throwError(state, 'nested arrays are not supported inside keys');\n      }\n\n      if (typeof keyNode === 'object' && _class(keyNode[index]) === '[object Object]') {\n        keyNode[index] = '[object Object]';\n      }\n    }\n  }\n\n  // Avoid code execution in load() via toString property\n  // (still use its own toString for arrays, timestamps,\n  // and whatever user schema extensions happen to have @@toStringTag)\n  if (typeof keyNode === 'object' && _class(keyNode) === '[object Object]') {\n    keyNode = '[object Object]';\n  }\n\n\n  keyNode = String(keyNode);\n\n  if (_result === null) {\n    _result = {};\n  }\n\n  if (keyTag === 'tag:yaml.org,2002:merge') {\n    if (Array.isArray(valueNode)) {\n      for (index = 0, quantity = valueNode.length; index < quantity; index += 1) {\n        mergeMappings(state, _result, valueNode[index], overridableKeys);\n      }\n    } else {\n      mergeMappings(state, _result, valueNode, overridableKeys);\n    }\n  } else {\n    if (!state.json &&\n        !_hasOwnProperty.call(overridableKeys, keyNode) &&\n        _hasOwnProperty.call(_result, keyNode)) {\n      state.line = startLine || state.line;\n      state.lineStart = startLineStart || state.lineStart;\n      state.position = startPos || state.position;\n      throwError(state, 'duplicated mapping key');\n    }\n\n    // used for this specific key only because Object.defineProperty is slow\n    if (keyNode === '__proto__') {\n      Object.defineProperty(_result, keyNode, {\n        configurable: true,\n        enumerable: true,\n        writable: true,\n        value: valueNode\n      });\n    } else {\n      _result[keyNode] = valueNode;\n    }\n    delete overridableKeys[keyNode];\n  }\n\n  return _result;\n}\n\nfunction readLineBreak(state) {\n  var ch;\n\n  ch = state.input.charCodeAt(state.position);\n\n  if (ch === 0x0A/* LF */) {\n    state.position++;\n  } else if (ch === 0x0D/* CR */) {\n    state.position++;\n    if (state.input.charCodeAt(state.position) === 0x0A/* LF */) {\n      state.position++;\n    }\n  } else {\n    throwError(state, 'a line break is expected');\n  }\n\n  state.line += 1;\n  state.lineStart = state.position;\n  state.firstTabInLine = -1;\n}\n\nfunction skipSeparationSpace(state, allowComments, checkIndent) {\n  var lineBreaks = 0,\n      ch = state.input.charCodeAt(state.position);\n\n  while (ch !== 0) {\n    while (is_WHITE_SPACE(ch)) {\n      if (ch === 0x09/* Tab */ && state.firstTabInLine === -1) {\n        state.firstTabInLine = state.position;\n      }\n      ch = state.input.charCodeAt(++state.position);\n    }\n\n    if (allowComments && ch === 0x23/* # */) {\n      do {\n        ch = state.input.charCodeAt(++state.position);\n      } while (ch !== 0x0A/* LF */ && ch !== 0x0D/* CR */ && ch !== 0);\n    }\n\n    if (is_EOL(ch)) {\n      readLineBreak(state);\n\n      ch = state.input.charCodeAt(state.position);\n      lineBreaks++;\n      state.lineIndent = 0;\n\n      while (ch === 0x20/* Space */) {\n        state.lineIndent++;\n        ch = state.input.charCodeAt(++state.position);\n      }\n    } else {\n      break;\n    }\n  }\n\n  if (checkIndent !== -1 && lineBreaks !== 0 && state.lineIndent < checkIndent) {\n    throwWarning(state, 'deficient indentation');\n  }\n\n  return lineBreaks;\n}\n\nfunction testDocumentSeparator(state) {\n  var _position = state.position,\n      ch;\n\n  ch = state.input.charCodeAt(_position);\n\n  // Condition state.position === state.lineStart is tested\n  // in parent on each call, for efficiency. No needs to test here again.\n  if ((ch === 0x2D/* - */ || ch === 0x2E/* . */) &&\n      ch === state.input.charCodeAt(_position + 1) &&\n      ch === state.input.charCodeAt(_position + 2)) {\n\n    _position += 3;\n\n    ch = state.input.charCodeAt(_position);\n\n    if (ch === 0 || is_WS_OR_EOL(ch)) {\n      return true;\n    }\n  }\n\n  return false;\n}\n\nfunction writeFoldedLines(state, count) {\n  if (count === 1) {\n    state.result += ' ';\n  } else if (count > 1) {\n    state.result += common.repeat('\\n', count - 1);\n  }\n}\n\n\nfunction readPlainScalar(state, nodeIndent, withinFlowCollection) {\n  var preceding,\n      following,\n      captureStart,\n      captureEnd,\n      hasPendingContent,\n      _line,\n      _lineStart,\n      _lineIndent,\n      _kind = state.kind,\n      _result = state.result,\n      ch;\n\n  ch = state.input.charCodeAt(state.position);\n\n  if (is_WS_OR_EOL(ch)      ||\n      is_FLOW_INDICATOR(ch) ||\n      ch === 0x23/* # */    ||\n      ch === 0x26/* & */    ||\n      ch === 0x2A/* * */    ||\n      ch === 0x21/* ! */    ||\n      ch === 0x7C/* | */    ||\n      ch === 0x3E/* > */    ||\n      ch === 0x27/* ' */    ||\n      ch === 0x22/* \" */    ||\n      ch === 0x25/* % */    ||\n      ch === 0x40/* @ */    ||\n      ch === 0x60/* ` */) {\n    return false;\n  }\n\n  if (ch === 0x3F/* ? */ || ch === 0x2D/* - */) {\n    following = state.input.charCodeAt(state.position + 1);\n\n    if (is_WS_OR_EOL(following) ||\n        withinFlowCollection && is_FLOW_INDICATOR(following)) {\n      return false;\n    }\n  }\n\n  state.kind = 'scalar';\n  state.result = '';\n  captureStart = captureEnd = state.position;\n  hasPendingContent = false;\n\n  while (ch !== 0) {\n    if (ch === 0x3A/* : */) {\n      following = state.input.charCodeAt(state.position + 1);\n\n      if (is_WS_OR_EOL(following) ||\n          withinFlowCollection && is_FLOW_INDICATOR(following)) {\n        break;\n      }\n\n    } else if (ch === 0x23/* # */) {\n      preceding = state.input.charCodeAt(state.position - 1);\n\n      if (is_WS_OR_EOL(preceding)) {\n        break;\n      }\n\n    } else if ((state.position === state.lineStart && testDocumentSeparator(state)) ||\n               withinFlowCollection && is_FLOW_INDICATOR(ch)) {\n      break;\n\n    } else if (is_EOL(ch)) {\n      _line = state.line;\n      _lineStart = state.lineStart;\n      _lineIndent = state.lineIndent;\n      skipSeparationSpace(state, false, -1);\n\n      if (state.lineIndent >= nodeIndent) {\n        hasPendingContent = true;\n        ch = state.input.charCodeAt(state.position);\n        continue;\n      } else {\n        state.position = captureEnd;\n        state.line = _line;\n        state.lineStart = _lineStart;\n        state.lineIndent = _lineIndent;\n        break;\n      }\n    }\n\n    if (hasPendingContent) {\n      captureSegment(state, captureStart, captureEnd, false);\n      writeFoldedLines(state, state.line - _line);\n      captureStart = captureEnd = state.position;\n      hasPendingContent = false;\n    }\n\n    if (!is_WHITE_SPACE(ch)) {\n      captureEnd = state.position + 1;\n    }\n\n    ch = state.input.charCodeAt(++state.position);\n  }\n\n  captureSegment(state, captureStart, captureEnd, false);\n\n  if (state.result) {\n    return true;\n  }\n\n  state.kind = _kind;\n  state.result = _result;\n  return false;\n}\n\nfunction readSingleQuotedScalar(state, nodeIndent) {\n  var ch,\n      captureStart, captureEnd;\n\n  ch = state.input.charCodeAt(state.position);\n\n  if (ch !== 0x27/* ' */) {\n    return false;\n  }\n\n  state.kind = 'scalar';\n  state.result = '';\n  state.position++;\n  captureStart = captureEnd = state.position;\n\n  while ((ch = state.input.charCodeAt(state.position)) !== 0) {\n    if (ch === 0x27/* ' */) {\n      captureSegment(state, captureStart, state.position, true);\n      ch = state.input.charCodeAt(++state.position);\n\n      if (ch === 0x27/* ' */) {\n        captureStart = state.position;\n        state.position++;\n        captureEnd = state.position;\n      } else {\n        return true;\n      }\n\n    } else if (is_EOL(ch)) {\n      captureSegment(state, captureStart, captureEnd, true);\n      writeFoldedLines(state, skipSeparationSpace(state, false, nodeIndent));\n      captureStart = captureEnd = state.position;\n\n    } else if (state.position === state.lineStart && testDocumentSeparator(state)) {\n      throwError(state, 'unexpected end of the document within a single quoted scalar');\n\n    } else {\n      state.position++;\n      captureEnd = state.position;\n    }\n  }\n\n  throwError(state, 'unexpected end of the stream within a single quoted scalar');\n}\n\nfunction readDoubleQuotedScalar(state, nodeIndent) {\n  var captureStart,\n      captureEnd,\n      hexLength,\n      hexResult,\n      tmp,\n      ch;\n\n  ch = state.input.charCodeAt(state.position);\n\n  if (ch !== 0x22/* \" */) {\n    return false;\n  }\n\n  state.kind = 'scalar';\n  state.result = '';\n  state.position++;\n  captureStart = captureEnd = state.position;\n\n  while ((ch = state.input.charCodeAt(state.position)) !== 0) {\n    if (ch === 0x22/* \" */) {\n      captureSegment(state, captureStart, state.position, true);\n      state.position++;\n      return true;\n\n    } else if (ch === 0x5C/* \\ */) {\n      captureSegment(state, captureStart, state.position, true);\n      ch = state.input.charCodeAt(++state.position);\n\n      if (is_EOL(ch)) {\n        skipSeparationSpace(state, false, nodeIndent);\n\n        // TODO: rework to inline fn with no type cast?\n      } else if (ch < 256 && simpleEscapeCheck[ch]) {\n        state.result += simpleEscapeMap[ch];\n        state.position++;\n\n      } else if ((tmp = escapedHexLen(ch)) > 0) {\n        hexLength = tmp;\n        hexResult = 0;\n\n        for (; hexLength > 0; hexLength--) {\n          ch = state.input.charCodeAt(++state.position);\n\n          if ((tmp = fromHexCode(ch)) >= 0) {\n            hexResult = (hexResult << 4) + tmp;\n\n          } else {\n            throwError(state, 'expected hexadecimal character');\n          }\n        }\n\n        state.result += charFromCodepoint(hexResult);\n\n        state.position++;\n\n      } else {\n        throwError(state, 'unknown escape sequence');\n      }\n\n      captureStart = captureEnd = state.position;\n\n    } else if (is_EOL(ch)) {\n      captureSegment(state, captureStart, captureEnd, true);\n      writeFoldedLines(state, skipSeparationSpace(state, false, nodeIndent));\n      captureStart = captureEnd = state.position;\n\n    } else if (state.position === state.lineStart && testDocumentSeparator(state)) {\n      throwError(state, 'unexpected end of the document within a double quoted scalar');\n\n    } else {\n      state.position++;\n      captureEnd = state.position;\n    }\n  }\n\n  throwError(state, 'unexpected end of the stream within a double quoted scalar');\n}\n\nfunction readFlowCollection(state, nodeIndent) {\n  var readNext = true,\n      _line,\n      _lineStart,\n      _pos,\n      _tag     = state.tag,\n      _result,\n      _anchor  = state.anchor,\n      following,\n      terminator,\n      isPair,\n      isExplicitPair,\n      isMapping,\n      overridableKeys = Object.create(null),\n      keyNode,\n      keyTag,\n      valueNode,\n      ch;\n\n  ch = state.input.charCodeAt(state.position);\n\n  if (ch === 0x5B/* [ */) {\n    terminator = 0x5D;/* ] */\n    isMapping = false;\n    _result = [];\n  } else if (ch === 0x7B/* { */) {\n    terminator = 0x7D;/* } */\n    isMapping = true;\n    _result = {};\n  } else {\n    return false;\n  }\n\n  if (state.anchor !== null) {\n    state.anchorMap[state.anchor] = _result;\n  }\n\n  ch = state.input.charCodeAt(++state.position);\n\n  while (ch !== 0) {\n    skipSeparationSpace(state, true, nodeIndent);\n\n    ch = state.input.charCodeAt(state.position);\n\n    if (ch === terminator) {\n      state.position++;\n      state.tag = _tag;\n      state.anchor = _anchor;\n      state.kind = isMapping ? 'mapping' : 'sequence';\n      state.result = _result;\n      return true;\n    } else if (!readNext) {\n      throwError(state, 'missed comma between flow collection entries');\n    } else if (ch === 0x2C/* , */) {\n      // \"flow collection entries can never be completely empty\", as per YAML 1.2, section 7.4\n      throwError(state, \"expected the node content, but found ','\");\n    }\n\n    keyTag = keyNode = valueNode = null;\n    isPair = isExplicitPair = false;\n\n    if (ch === 0x3F/* ? */) {\n      following = state.input.charCodeAt(state.position + 1);\n\n      if (is_WS_OR_EOL(following)) {\n        isPair = isExplicitPair = true;\n        state.position++;\n        skipSeparationSpace(state, true, nodeIndent);\n      }\n    }\n\n    _line = state.line; // Save the current line.\n    _lineStart = state.lineStart;\n    _pos = state.position;\n    composeNode(state, nodeIndent, CONTEXT_FLOW_IN, false, true);\n    keyTag = state.tag;\n    keyNode = state.result;\n    skipSeparationSpace(state, true, nodeIndent);\n\n    ch = state.input.charCodeAt(state.position);\n\n    if ((isExplicitPair || state.line === _line) && ch === 0x3A/* : */) {\n      isPair = true;\n      ch = state.input.charCodeAt(++state.position);\n      skipSeparationSpace(state, true, nodeIndent);\n      composeNode(state, nodeIndent, CONTEXT_FLOW_IN, false, true);\n      valueNode = state.result;\n    }\n\n    if (isMapping) {\n      storeMappingPair(state, _result, overridableKeys, keyTag, keyNode, valueNode, _line, _lineStart, _pos);\n    } else if (isPair) {\n      _result.push(storeMappingPair(state, null, overridableKeys, keyTag, keyNode, valueNode, _line, _lineStart, _pos));\n    } else {\n      _result.push(keyNode);\n    }\n\n    skipSeparationSpace(state, true, nodeIndent);\n\n    ch = state.input.charCodeAt(state.position);\n\n    if (ch === 0x2C/* , */) {\n      readNext = true;\n      ch = state.input.charCodeAt(++state.position);\n    } else {\n      readNext = false;\n    }\n  }\n\n  throwError(state, 'unexpected end of the stream within a flow collection');\n}\n\nfunction readBlockScalar(state, nodeIndent) {\n  var captureStart,\n      folding,\n      chomping       = CHOMPING_CLIP,\n      didReadContent = false,\n      detectedIndent = false,\n      textIndent     = nodeIndent,\n      emptyLines     = 0,\n      atMoreIndented = false,\n      tmp,\n      ch;\n\n  ch = state.input.charCodeAt(state.position);\n\n  if (ch === 0x7C/* | */) {\n    folding = false;\n  } else if (ch === 0x3E/* > */) {\n    folding = true;\n  } else {\n    return false;\n  }\n\n  state.kind = 'scalar';\n  state.result = '';\n\n  while (ch !== 0) {\n    ch = state.input.charCodeAt(++state.position);\n\n    if (ch === 0x2B/* + */ || ch === 0x2D/* - */) {\n      if (CHOMPING_CLIP === chomping) {\n        chomping = (ch === 0x2B/* + */) ? CHOMPING_KEEP : CHOMPING_STRIP;\n      } else {\n        throwError(state, 'repeat of a chomping mode identifier');\n      }\n\n    } else if ((tmp = fromDecimalCode(ch)) >= 0) {\n      if (tmp === 0) {\n        throwError(state, 'bad explicit indentation width of a block scalar; it cannot be less than one');\n      } else if (!detectedIndent) {\n        textIndent = nodeIndent + tmp - 1;\n        detectedIndent = true;\n      } else {\n        throwError(state, 'repeat of an indentation width identifier');\n      }\n\n    } else {\n      break;\n    }\n  }\n\n  if (is_WHITE_SPACE(ch)) {\n    do { ch = state.input.charCodeAt(++state.position); }\n    while (is_WHITE_SPACE(ch));\n\n    if (ch === 0x23/* # */) {\n      do { ch = state.input.charCodeAt(++state.position); }\n      while (!is_EOL(ch) && (ch !== 0));\n    }\n  }\n\n  while (ch !== 0) {\n    readLineBreak(state);\n    state.lineIndent = 0;\n\n    ch = state.input.charCodeAt(state.position);\n\n    while ((!detectedIndent || state.lineIndent < textIndent) &&\n           (ch === 0x20/* Space */)) {\n      state.lineIndent++;\n      ch = state.input.charCodeAt(++state.position);\n    }\n\n    if (!detectedIndent && state.lineIndent > textIndent) {\n      textIndent = state.lineIndent;\n    }\n\n    if (is_EOL(ch)) {\n      emptyLines++;\n      continue;\n    }\n\n    // End of the scalar.\n    if (state.lineIndent < textIndent) {\n\n      // Perform the chomping.\n      if (chomping === CHOMPING_KEEP) {\n        state.result += common.repeat('\\n', didReadContent ? 1 + emptyLines : emptyLines);\n      } else if (chomping === CHOMPING_CLIP) {\n        if (didReadContent) { // i.e. only if the scalar is not empty.\n          state.result += '\\n';\n        }\n      }\n\n      // Break this `while` cycle and go to the funciton's epilogue.\n      break;\n    }\n\n    // Folded style: use fancy rules to handle line breaks.\n    if (folding) {\n\n      // Lines starting with white space characters (more-indented lines) are not folded.\n      if (is_WHITE_SPACE(ch)) {\n        atMoreIndented = true;\n        // except for the first content line (cf. Example 8.1)\n        state.result += common.repeat('\\n', didReadContent ? 1 + emptyLines : emptyLines);\n\n      // End of more-indented block.\n      } else if (atMoreIndented) {\n        atMoreIndented = false;\n        state.result += common.repeat('\\n', emptyLines + 1);\n\n      // Just one line break - perceive as the same line.\n      } else if (emptyLines === 0) {\n        if (didReadContent) { // i.e. only if we have already read some scalar content.\n          state.result += ' ';\n        }\n\n      // Several line breaks - perceive as different lines.\n      } else {\n        state.result += common.repeat('\\n', emptyLines);\n      }\n\n    // Literal style: just add exact number of line breaks between content lines.\n    } else {\n      // Keep all line breaks except the header line break.\n      state.result += common.repeat('\\n', didReadContent ? 1 + emptyLines : emptyLines);\n    }\n\n    didReadContent = true;\n    detectedIndent = true;\n    emptyLines = 0;\n    captureStart = state.position;\n\n    while (!is_EOL(ch) && (ch !== 0)) {\n      ch = state.input.charCodeAt(++state.position);\n    }\n\n    captureSegment(state, captureStart, state.position, false);\n  }\n\n  return true;\n}\n\nfunction readBlockSequence(state, nodeIndent) {\n  var _line,\n      _tag      = state.tag,\n      _anchor   = state.anchor,\n      _result   = [],\n      following,\n      detected  = false,\n      ch;\n\n  // there is a leading tab before this token, so it can't be a block sequence/mapping;\n  // it can still be flow sequence/mapping or a scalar\n  if (state.firstTabInLine !== -1) return false;\n\n  if (state.anchor !== null) {\n    state.anchorMap[state.anchor] = _result;\n  }\n\n  ch = state.input.charCodeAt(state.position);\n\n  while (ch !== 0) {\n    if (state.firstTabInLine !== -1) {\n      state.position = state.firstTabInLine;\n      throwError(state, 'tab characters must not be used in indentation');\n    }\n\n    if (ch !== 0x2D/* - */) {\n      break;\n    }\n\n    following = state.input.charCodeAt(state.position + 1);\n\n    if (!is_WS_OR_EOL(following)) {\n      break;\n    }\n\n    detected = true;\n    state.position++;\n\n    if (skipSeparationSpace(state, true, -1)) {\n      if (state.lineIndent <= nodeIndent) {\n        _result.push(null);\n        ch = state.input.charCodeAt(state.position);\n        continue;\n      }\n    }\n\n    _line = state.line;\n    composeNode(state, nodeIndent, CONTEXT_BLOCK_IN, false, true);\n    _result.push(state.result);\n    skipSeparationSpace(state, true, -1);\n\n    ch = state.input.charCodeAt(state.position);\n\n    if ((state.line === _line || state.lineIndent > nodeIndent) && (ch !== 0)) {\n      throwError(state, 'bad indentation of a sequence entry');\n    } else if (state.lineIndent < nodeIndent) {\n      break;\n    }\n  }\n\n  if (detected) {\n    state.tag = _tag;\n    state.anchor = _anchor;\n    state.kind = 'sequence';\n    state.result = _result;\n    return true;\n  }\n  return false;\n}\n\nfunction readBlockMapping(state, nodeIndent, flowIndent) {\n  var following,\n      allowCompact,\n      _line,\n      _keyLine,\n      _keyLineStart,\n      _keyPos,\n      _tag          = state.tag,\n      _anchor       = state.anchor,\n      _result       = {},\n      overridableKeys = Object.create(null),\n      keyTag        = null,\n      keyNode       = null,\n      valueNode     = null,\n      atExplicitKey = false,\n      detected      = false,\n      ch;\n\n  // there is a leading tab before this token, so it can't be a block sequence/mapping;\n  // it can still be flow sequence/mapping or a scalar\n  if (state.firstTabInLine !== -1) return false;\n\n  if (state.anchor !== null) {\n    state.anchorMap[state.anchor] = _result;\n  }\n\n  ch = state.input.charCodeAt(state.position);\n\n  while (ch !== 0) {\n    if (!atExplicitKey && state.firstTabInLine !== -1) {\n      state.position = state.firstTabInLine;\n      throwError(state, 'tab characters must not be used in indentation');\n    }\n\n    following = state.input.charCodeAt(state.position + 1);\n    _line = state.line; // Save the current line.\n\n    //\n    // Explicit notation case. There are two separate blocks:\n    // first for the key (denoted by \"?\") and second for the value (denoted by \":\")\n    //\n    if ((ch === 0x3F/* ? */ || ch === 0x3A/* : */) && is_WS_OR_EOL(following)) {\n\n      if (ch === 0x3F/* ? */) {\n        if (atExplicitKey) {\n          storeMappingPair(state, _result, overridableKeys, keyTag, keyNode, null, _keyLine, _keyLineStart, _keyPos);\n          keyTag = keyNode = valueNode = null;\n        }\n\n        detected = true;\n        atExplicitKey = true;\n        allowCompact = true;\n\n      } else if (atExplicitKey) {\n        // i.e. 0x3A/* : */ === character after the explicit key.\n        atExplicitKey = false;\n        allowCompact = true;\n\n      } else {\n        throwError(state, 'incomplete explicit mapping pair; a key node is missed; or followed by a non-tabulated empty line');\n      }\n\n      state.position += 1;\n      ch = following;\n\n    //\n    // Implicit notation case. Flow-style node as the key first, then \":\", and the value.\n    //\n    } else {\n      _keyLine = state.line;\n      _keyLineStart = state.lineStart;\n      _keyPos = state.position;\n\n      if (!composeNode(state, flowIndent, CONTEXT_FLOW_OUT, false, true)) {\n        // Neither implicit nor explicit notation.\n        // Reading is done. Go to the epilogue.\n        break;\n      }\n\n      if (state.line === _line) {\n        ch = state.input.charCodeAt(state.position);\n\n        while (is_WHITE_SPACE(ch)) {\n          ch = state.input.charCodeAt(++state.position);\n        }\n\n        if (ch === 0x3A/* : */) {\n          ch = state.input.charCodeAt(++state.position);\n\n          if (!is_WS_OR_EOL(ch)) {\n            throwError(state, 'a whitespace character is expected after the key-value separator within a block mapping');\n          }\n\n          if (atExplicitKey) {\n            storeMappingPair(state, _result, overridableKeys, keyTag, keyNode, null, _keyLine, _keyLineStart, _keyPos);\n            keyTag = keyNode = valueNode = null;\n          }\n\n          detected = true;\n          atExplicitKey = false;\n          allowCompact = false;\n          keyTag = state.tag;\n          keyNode = state.result;\n\n        } else if (detected) {\n          throwError(state, 'can not read an implicit mapping pair; a colon is missed');\n\n        } else {\n          state.tag = _tag;\n          state.anchor = _anchor;\n          return true; // Keep the result of `composeNode`.\n        }\n\n      } else if (detected) {\n        throwError(state, 'can not read a block mapping entry; a multiline key may not be an implicit key');\n\n      } else {\n        state.tag = _tag;\n        state.anchor = _anchor;\n        return true; // Keep the result of `composeNode`.\n      }\n    }\n\n    //\n    // Common reading code for both explicit and implicit notations.\n    //\n    if (state.line === _line || state.lineIndent > nodeIndent) {\n      if (atExplicitKey) {\n        _keyLine = state.line;\n        _keyLineStart = state.lineStart;\n        _keyPos = state.position;\n      }\n\n      if (composeNode(state, nodeIndent, CONTEXT_BLOCK_OUT, true, allowCompact)) {\n        if (atExplicitKey) {\n          keyNode = state.result;\n        } else {\n          valueNode = state.result;\n        }\n      }\n\n      if (!atExplicitKey) {\n        storeMappingPair(state, _result, overridableKeys, keyTag, keyNode, valueNode, _keyLine, _keyLineStart, _keyPos);\n        keyTag = keyNode = valueNode = null;\n      }\n\n      skipSeparationSpace(state, true, -1);\n      ch = state.input.charCodeAt(state.position);\n    }\n\n    if ((state.line === _line || state.lineIndent > nodeIndent) && (ch !== 0)) {\n      throwError(state, 'bad indentation of a mapping entry');\n    } else if (state.lineIndent < nodeIndent) {\n      break;\n    }\n  }\n\n  //\n  // Epilogue.\n  //\n\n  // Special case: last mapping's node contains only the key in explicit notation.\n  if (atExplicitKey) {\n    storeMappingPair(state, _result, overridableKeys, keyTag, keyNode, null, _keyLine, _keyLineStart, _keyPos);\n  }\n\n  // Expose the resulting mapping.\n  if (detected) {\n    state.tag = _tag;\n    state.anchor = _anchor;\n    state.kind = 'mapping';\n    state.result = _result;\n  }\n\n  return detected;\n}\n\nfunction readTagProperty(state) {\n  var _position,\n      isVerbatim = false,\n      isNamed    = false,\n      tagHandle,\n      tagName,\n      ch;\n\n  ch = state.input.charCodeAt(state.position);\n\n  if (ch !== 0x21/* ! */) return false;\n\n  if (state.tag !== null) {\n    throwError(state, 'duplication of a tag property');\n  }\n\n  ch = state.input.charCodeAt(++state.position);\n\n  if (ch === 0x3C/* < */) {\n    isVerbatim = true;\n    ch = state.input.charCodeAt(++state.position);\n\n  } else if (ch === 0x21/* ! */) {\n    isNamed = true;\n    tagHandle = '!!';\n    ch = state.input.charCodeAt(++state.position);\n\n  } else {\n    tagHandle = '!';\n  }\n\n  _position = state.position;\n\n  if (isVerbatim) {\n    do { ch = state.input.charCodeAt(++state.position); }\n    while (ch !== 0 && ch !== 0x3E/* > */);\n\n    if (state.position < state.length) {\n      tagName = state.input.slice(_position, state.position);\n      ch = state.input.charCodeAt(++state.position);\n    } else {\n      throwError(state, 'unexpected end of the stream within a verbatim tag');\n    }\n  } else {\n    while (ch !== 0 && !is_WS_OR_EOL(ch)) {\n\n      if (ch === 0x21/* ! */) {\n        if (!isNamed) {\n          tagHandle = state.input.slice(_position - 1, state.position + 1);\n\n          if (!PATTERN_TAG_HANDLE.test(tagHandle)) {\n            throwError(state, 'named tag handle cannot contain such characters');\n          }\n\n          isNamed = true;\n          _position = state.position + 1;\n        } else {\n          throwError(state, 'tag suffix cannot contain exclamation marks');\n        }\n      }\n\n      ch = state.input.charCodeAt(++state.position);\n    }\n\n    tagName = state.input.slice(_position, state.position);\n\n    if (PATTERN_FLOW_INDICATORS.test(tagName)) {\n      throwError(state, 'tag suffix cannot contain flow indicator characters');\n    }\n  }\n\n  if (tagName && !PATTERN_TAG_URI.test(tagName)) {\n    throwError(state, 'tag name cannot contain such characters: ' + tagName);\n  }\n\n  try {\n    tagName = decodeURIComponent(tagName);\n  } catch (err) {\n    throwError(state, 'tag name is malformed: ' + tagName);\n  }\n\n  if (isVerbatim) {\n    state.tag = tagName;\n\n  } else if (_hasOwnProperty.call(state.tagMap, tagHandle)) {\n    state.tag = state.tagMap[tagHandle] + tagName;\n\n  } else if (tagHandle === '!') {\n    state.tag = '!' + tagName;\n\n  } else if (tagHandle === '!!') {\n    state.tag = 'tag:yaml.org,2002:' + tagName;\n\n  } else {\n    throwError(state, 'undeclared tag handle \"' + tagHandle + '\"');\n  }\n\n  return true;\n}\n\nfunction readAnchorProperty(state) {\n  var _position,\n      ch;\n\n  ch = state.input.charCodeAt(state.position);\n\n  if (ch !== 0x26/* & */) return false;\n\n  if (state.anchor !== null) {\n    throwError(state, 'duplication of an anchor property');\n  }\n\n  ch = state.input.charCodeAt(++state.position);\n  _position = state.position;\n\n  while (ch !== 0 && !is_WS_OR_EOL(ch) && !is_FLOW_INDICATOR(ch)) {\n    ch = state.input.charCodeAt(++state.position);\n  }\n\n  if (state.position === _position) {\n    throwError(state, 'name of an anchor node must contain at least one character');\n  }\n\n  state.anchor = state.input.slice(_position, state.position);\n  return true;\n}\n\nfunction readAlias(state) {\n  var _position, alias,\n      ch;\n\n  ch = state.input.charCodeAt(state.position);\n\n  if (ch !== 0x2A/* * */) return false;\n\n  ch = state.input.charCodeAt(++state.position);\n  _position = state.position;\n\n  while (ch !== 0 && !is_WS_OR_EOL(ch) && !is_FLOW_INDICATOR(ch)) {\n    ch = state.input.charCodeAt(++state.position);\n  }\n\n  if (state.position === _position) {\n    throwError(state, 'name of an alias node must contain at least one character');\n  }\n\n  alias = state.input.slice(_position, state.position);\n\n  if (!_hasOwnProperty.call(state.anchorMap, alias)) {\n    throwError(state, 'unidentified alias \"' + alias + '\"');\n  }\n\n  state.result = state.anchorMap[alias];\n  skipSeparationSpace(state, true, -1);\n  return true;\n}\n\nfunction composeNode(state, parentIndent, nodeContext, allowToSeek, allowCompact) {\n  var allowBlockStyles,\n      allowBlockScalars,\n      allowBlockCollections,\n      indentStatus = 1, // 1: this>parent, 0: this=parent, -1: this<parent\n      atNewLine  = false,\n      hasContent = false,\n      typeIndex,\n      typeQuantity,\n      typeList,\n      type,\n      flowIndent,\n      blockIndent;\n\n  if (state.listener !== null) {\n    state.listener('open', state);\n  }\n\n  state.tag    = null;\n  state.anchor = null;\n  state.kind   = null;\n  state.result = null;\n\n  allowBlockStyles = allowBlockScalars = allowBlockCollections =\n    CONTEXT_BLOCK_OUT === nodeContext ||\n    CONTEXT_BLOCK_IN  === nodeContext;\n\n  if (allowToSeek) {\n    if (skipSeparationSpace(state, true, -1)) {\n      atNewLine = true;\n\n      if (state.lineIndent > parentIndent) {\n        indentStatus = 1;\n      } else if (state.lineIndent === parentIndent) {\n        indentStatus = 0;\n      } else if (state.lineIndent < parentIndent) {\n        indentStatus = -1;\n      }\n    }\n  }\n\n  if (indentStatus === 1) {\n    while (readTagProperty(state) || readAnchorProperty(state)) {\n      if (skipSeparationSpace(state, true, -1)) {\n        atNewLine = true;\n        allowBlockCollections = allowBlockStyles;\n\n        if (state.lineIndent > parentIndent) {\n          indentStatus = 1;\n        } else if (state.lineIndent === parentIndent) {\n          indentStatus = 0;\n        } else if (state.lineIndent < parentIndent) {\n          indentStatus = -1;\n        }\n      } else {\n        allowBlockCollections = false;\n      }\n    }\n  }\n\n  if (allowBlockCollections) {\n    allowBlockCollections = atNewLine || allowCompact;\n  }\n\n  if (indentStatus === 1 || CONTEXT_BLOCK_OUT === nodeContext) {\n    if (CONTEXT_FLOW_IN === nodeContext || CONTEXT_FLOW_OUT === nodeContext) {\n      flowIndent = parentIndent;\n    } else {\n      flowIndent = parentIndent + 1;\n    }\n\n    blockIndent = state.position - state.lineStart;\n\n    if (indentStatus === 1) {\n      if (allowBlockCollections &&\n          (readBlockSequence(state, blockIndent) ||\n           readBlockMapping(state, blockIndent, flowIndent)) ||\n          readFlowCollection(state, flowIndent)) {\n        hasContent = true;\n      } else {\n        if ((allowBlockScalars && readBlockScalar(state, flowIndent)) ||\n            readSingleQuotedScalar(state, flowIndent) ||\n            readDoubleQuotedScalar(state, flowIndent)) {\n          hasContent = true;\n\n        } else if (readAlias(state)) {\n          hasContent = true;\n\n          if (state.tag !== null || state.anchor !== null) {\n            throwError(state, 'alias node should not have any properties');\n          }\n\n        } else if (readPlainScalar(state, flowIndent, CONTEXT_FLOW_IN === nodeContext)) {\n          hasContent = true;\n\n          if (state.tag === null) {\n            state.tag = '?';\n          }\n        }\n\n        if (state.anchor !== null) {\n          state.anchorMap[state.anchor] = state.result;\n        }\n      }\n    } else if (indentStatus === 0) {\n      // Special case: block sequences are allowed to have same indentation level as the parent.\n      // http://www.yaml.org/spec/1.2/spec.html#id2799784\n      hasContent = allowBlockCollections && readBlockSequence(state, blockIndent);\n    }\n  }\n\n  if (state.tag === null) {\n    if (state.anchor !== null) {\n      state.anchorMap[state.anchor] = state.result;\n    }\n\n  } else if (state.tag === '?') {\n    // Implicit resolving is not allowed for non-scalar types, and '?'\n    // non-specific tag is only automatically assigned to plain scalars.\n    //\n    // We only need to check kind conformity in case user explicitly assigns '?'\n    // tag, for example like this: \"!<?> [0]\"\n    //\n    if (state.result !== null && state.kind !== 'scalar') {\n      throwError(state, 'unacceptable node kind for !<?> tag; it should be \"scalar\", not \"' + state.kind + '\"');\n    }\n\n    for (typeIndex = 0, typeQuantity = state.implicitTypes.length; typeIndex < typeQuantity; typeIndex += 1) {\n      type = state.implicitTypes[typeIndex];\n\n      if (type.resolve(state.result)) { // `state.result` updated in resolver if matched\n        state.result = type.construct(state.result);\n        state.tag = type.tag;\n        if (state.anchor !== null) {\n          state.anchorMap[state.anchor] = state.result;\n        }\n        break;\n      }\n    }\n  } else if (state.tag !== '!') {\n    if (_hasOwnProperty.call(state.typeMap[state.kind || 'fallback'], state.tag)) {\n      type = state.typeMap[state.kind || 'fallback'][state.tag];\n    } else {\n      // looking for multi type\n      type = null;\n      typeList = state.typeMap.multi[state.kind || 'fallback'];\n\n      for (typeIndex = 0, typeQuantity = typeList.length; typeIndex < typeQuantity; typeIndex += 1) {\n        if (state.tag.slice(0, typeList[typeIndex].tag.length) === typeList[typeIndex].tag) {\n          type = typeList[typeIndex];\n          break;\n        }\n      }\n    }\n\n    if (!type) {\n      throwError(state, 'unknown tag !<' + state.tag + '>');\n    }\n\n    if (state.result !== null && type.kind !== state.kind) {\n      throwError(state, 'unacceptable node kind for !<' + state.tag + '> tag; it should be \"' + type.kind + '\", not \"' + state.kind + '\"');\n    }\n\n    if (!type.resolve(state.result, state.tag)) { // `state.result` updated in resolver if matched\n      throwError(state, 'cannot resolve a node with !<' + state.tag + '> explicit tag');\n    } else {\n      state.result = type.construct(state.result, state.tag);\n      if (state.anchor !== null) {\n        state.anchorMap[state.anchor] = state.result;\n      }\n    }\n  }\n\n  if (state.listener !== null) {\n    state.listener('close', state);\n  }\n  return state.tag !== null ||  state.anchor !== null || hasContent;\n}\n\nfunction readDocument(state) {\n  var documentStart = state.position,\n      _position,\n      directiveName,\n      directiveArgs,\n      hasDirectives = false,\n      ch;\n\n  state.version = null;\n  state.checkLineBreaks = state.legacy;\n  state.tagMap = Object.create(null);\n  state.anchorMap = Object.create(null);\n\n  while ((ch = state.input.charCodeAt(state.position)) !== 0) {\n    skipSeparationSpace(state, true, -1);\n\n    ch = state.input.charCodeAt(state.position);\n\n    if (state.lineIndent > 0 || ch !== 0x25/* % */) {\n      break;\n    }\n\n    hasDirectives = true;\n    ch = state.input.charCodeAt(++state.position);\n    _position = state.position;\n\n    while (ch !== 0 && !is_WS_OR_EOL(ch)) {\n      ch = state.input.charCodeAt(++state.position);\n    }\n\n    directiveName = state.input.slice(_position, state.position);\n    directiveArgs = [];\n\n    if (directiveName.length < 1) {\n      throwError(state, 'directive name must not be less than one character in length');\n    }\n\n    while (ch !== 0) {\n      while (is_WHITE_SPACE(ch)) {\n        ch = state.input.charCodeAt(++state.position);\n      }\n\n      if (ch === 0x23/* # */) {\n        do { ch = state.input.charCodeAt(++state.position); }\n        while (ch !== 0 && !is_EOL(ch));\n        break;\n      }\n\n      if (is_EOL(ch)) break;\n\n      _position = state.position;\n\n      while (ch !== 0 && !is_WS_OR_EOL(ch)) {\n        ch = state.input.charCodeAt(++state.position);\n      }\n\n      directiveArgs.push(state.input.slice(_position, state.position));\n    }\n\n    if (ch !== 0) readLineBreak(state);\n\n    if (_hasOwnProperty.call(directiveHandlers, directiveName)) {\n      directiveHandlers[directiveName](state, directiveName, directiveArgs);\n    } else {\n      throwWarning(state, 'unknown document directive \"' + directiveName + '\"');\n    }\n  }\n\n  skipSeparationSpace(state, true, -1);\n\n  if (state.lineIndent === 0 &&\n      state.input.charCodeAt(state.position)     === 0x2D/* - */ &&\n      state.input.charCodeAt(state.position + 1) === 0x2D/* - */ &&\n      state.input.charCodeAt(state.position + 2) === 0x2D/* - */) {\n    state.position += 3;\n    skipSeparationSpace(state, true, -1);\n\n  } else if (hasDirectives) {\n    throwError(state, 'directives end mark is expected');\n  }\n\n  composeNode(state, state.lineIndent - 1, CONTEXT_BLOCK_OUT, false, true);\n  skipSeparationSpace(state, true, -1);\n\n  if (state.checkLineBreaks &&\n      PATTERN_NON_ASCII_LINE_BREAKS.test(state.input.slice(documentStart, state.position))) {\n    throwWarning(state, 'non-ASCII line breaks are interpreted as content');\n  }\n\n  state.documents.push(state.result);\n\n  if (state.position === state.lineStart && testDocumentSeparator(state)) {\n\n    if (state.input.charCodeAt(state.position) === 0x2E/* . */) {\n      state.position += 3;\n      skipSeparationSpace(state, true, -1);\n    }\n    return;\n  }\n\n  if (state.position < (state.length - 1)) {\n    throwError(state, 'end of the stream or a document separator is expected');\n  } else {\n    return;\n  }\n}\n\n\nfunction loadDocuments(input, options) {\n  input = String(input);\n  options = options || {};\n\n  if (input.length !== 0) {\n\n    // Add tailing `\\n` if not exists\n    if (input.charCodeAt(input.length - 1) !== 0x0A/* LF */ &&\n        input.charCodeAt(input.length - 1) !== 0x0D/* CR */) {\n      input += '\\n';\n    }\n\n    // Strip BOM\n    if (input.charCodeAt(0) === 0xFEFF) {\n      input = input.slice(1);\n    }\n  }\n\n  var state = new State(input, options);\n\n  var nullpos = input.indexOf('\\0');\n\n  if (nullpos !== -1) {\n    state.position = nullpos;\n    throwError(state, 'null byte is not allowed in input');\n  }\n\n  // Use 0 as string terminator. That significantly simplifies bounds check.\n  state.input += '\\0';\n\n  while (state.input.charCodeAt(state.position) === 0x20/* Space */) {\n    state.lineIndent += 1;\n    state.position += 1;\n  }\n\n  while (state.position < (state.length - 1)) {\n    readDocument(state);\n  }\n\n  return state.documents;\n}\n\n\nfunction loadAll(input, iterator, options) {\n  if (iterator !== null && typeof iterator === 'object' && typeof options === 'undefined') {\n    options = iterator;\n    iterator = null;\n  }\n\n  var documents = loadDocuments(input, options);\n\n  if (typeof iterator !== 'function') {\n    return documents;\n  }\n\n  for (var index = 0, length = documents.length; index < length; index += 1) {\n    iterator(documents[index]);\n  }\n}\n\n\nfunction load(input, options) {\n  var documents = loadDocuments(input, options);\n\n  if (documents.length === 0) {\n    /*eslint-disable no-undefined*/\n    return undefined;\n  } else if (documents.length === 1) {\n    return documents[0];\n  }\n  throw new YAMLException('expected a single document in the stream, but found more');\n}\n\n\nmodule.exports.loadAll = loadAll;\nmodule.exports.load    = load;\n","'use strict';\n\n/*eslint-disable max-len*/\n\nvar YAMLException = require('./exception');\nvar Type          = require('./type');\n\n\nfunction compileList(schema, name) {\n  var result = [];\n\n  schema[name].forEach(function (currentType) {\n    var newIndex = result.length;\n\n    result.forEach(function (previousType, previousIndex) {\n      if (previousType.tag === currentType.tag &&\n          previousType.kind === currentType.kind &&\n          previousType.multi === currentType.multi) {\n\n        newIndex = previousIndex;\n      }\n    });\n\n    result[newIndex] = currentType;\n  });\n\n  return result;\n}\n\n\nfunction compileMap(/* lists... */) {\n  var result = {\n        scalar: {},\n        sequence: {},\n        mapping: {},\n        fallback: {},\n        multi: {\n          scalar: [],\n          sequence: [],\n          mapping: [],\n          fallback: []\n        }\n      }, index, length;\n\n  function collectType(type) {\n    if (type.multi) {\n      result.multi[type.kind].push(type);\n      result.multi['fallback'].push(type);\n    } else {\n      result[type.kind][type.tag] = result['fallback'][type.tag] = type;\n    }\n  }\n\n  for (index = 0, length = arguments.length; index < length; index += 1) {\n    arguments[index].forEach(collectType);\n  }\n  return result;\n}\n\n\nfunction Schema(definition) {\n  return this.extend(definition);\n}\n\n\nSchema.prototype.extend = function extend(definition) {\n  var implicit = [];\n  var explicit = [];\n\n  if (definition instanceof Type) {\n    // Schema.extend(type)\n    explicit.push(definition);\n\n  } else if (Array.isArray(definition)) {\n    // Schema.extend([ type1, type2, ... ])\n    explicit = explicit.concat(definition);\n\n  } else if (definition && (Array.isArray(definition.implicit) || Array.isArray(definition.explicit))) {\n    // Schema.extend({ explicit: [ type1, type2, ... ], implicit: [ type1, type2, ... ] })\n    if (definition.implicit) implicit = implicit.concat(definition.implicit);\n    if (definition.explicit) explicit = explicit.concat(definition.explicit);\n\n  } else {\n    throw new YAMLException('Schema.extend argument should be a Type, [ Type ], ' +\n      'or a schema definition ({ implicit: [...], explicit: [...] })');\n  }\n\n  implicit.forEach(function (type) {\n    if (!(type instanceof Type)) {\n      throw new YAMLException('Specified list of YAML types (or a single Type object) contains a non-Type object.');\n    }\n\n    if (type.loadKind && type.loadKind !== 'scalar') {\n      throw new YAMLException('There is a non-scalar type in the implicit list of a schema. Implicit resolving of such types is not supported.');\n    }\n\n    if (type.multi) {\n      throw new YAMLException('There is a multi type in the implicit list of a schema. Multi tags can only be listed as explicit.');\n    }\n  });\n\n  explicit.forEach(function (type) {\n    if (!(type instanceof Type)) {\n      throw new YAMLException('Specified list of YAML types (or a single Type object) contains a non-Type object.');\n    }\n  });\n\n  var result = Object.create(Schema.prototype);\n\n  result.implicit = (this.implicit || []).concat(implicit);\n  result.explicit = (this.explicit || []).concat(explicit);\n\n  result.compiledImplicit = compileList(result, 'implicit');\n  result.compiledExplicit = compileList(result, 'explicit');\n  result.compiledTypeMap  = compileMap(result.compiledImplicit, result.compiledExplicit);\n\n  return result;\n};\n\n\nmodule.exports = Schema;\n","// Standard YAML's Core schema.\n// http://www.yaml.org/spec/1.2/spec.html#id2804923\n//\n// NOTE: JS-YAML does not support schema-specific tag resolution restrictions.\n// So, Core schema has no distinctions from JSON schema is JS-YAML.\n\n\n'use strict';\n\n\nmodule.exports = require('./json');\n","// JS-YAML's default schema for `safeLoad` function.\n// It is not described in the YAML specification.\n//\n// This schema is based on standard YAML's Core schema and includes most of\n// extra types described at YAML tag repository. (http://yaml.org/type/)\n\n\n'use strict';\n\n\nmodule.exports = require('./core').extend({\n  implicit: [\n    require('../type/timestamp'),\n    require('../type/merge')\n  ],\n  explicit: [\n    require('../type/binary'),\n    require('../type/omap'),\n    require('../type/pairs'),\n    require('../type/set')\n  ]\n});\n","// Standard YAML's Failsafe schema.\n// http://www.yaml.org/spec/1.2/spec.html#id2802346\n\n\n'use strict';\n\n\nvar Schema = require('../schema');\n\n\nmodule.exports = new Schema({\n  explicit: [\n    require('../type/str'),\n    require('../type/seq'),\n    require('../type/map')\n  ]\n});\n","// Standard YAML's JSON schema.\n// http://www.yaml.org/spec/1.2/spec.html#id2803231\n//\n// NOTE: JS-YAML does not support schema-specific tag resolution restrictions.\n// So, this schema is not such strict as defined in the YAML specification.\n// It allows numbers in binary notaion, use `Null` and `NULL` as `null`, etc.\n\n\n'use strict';\n\n\nmodule.exports = require('./failsafe').extend({\n  implicit: [\n    require('../type/null'),\n    require('../type/bool'),\n    require('../type/int'),\n    require('../type/float')\n  ]\n});\n","'use strict';\n\n\nvar common = require('./common');\n\n\n// get snippet for a single line, respecting maxLength\nfunction getLine(buffer, lineStart, lineEnd, position, maxLineLength) {\n  var head = '';\n  var tail = '';\n  var maxHalfLength = Math.floor(maxLineLength / 2) - 1;\n\n  if (position - lineStart > maxHalfLength) {\n    head = ' ... ';\n    lineStart = position - maxHalfLength + head.length;\n  }\n\n  if (lineEnd - position > maxHalfLength) {\n    tail = ' ...';\n    lineEnd = position + maxHalfLength - tail.length;\n  }\n\n  return {\n    str: head + buffer.slice(lineStart, lineEnd).replace(/\\t/g, '→') + tail,\n    pos: position - lineStart + head.length // relative position\n  };\n}\n\n\nfunction padStart(string, max) {\n  return common.repeat(' ', max - string.length) + string;\n}\n\n\nfunction makeSnippet(mark, options) {\n  options = Object.create(options || null);\n\n  if (!mark.buffer) return null;\n\n  if (!options.maxLength) options.maxLength = 79;\n  if (typeof options.indent      !== 'number') options.indent      = 1;\n  if (typeof options.linesBefore !== 'number') options.linesBefore = 3;\n  if (typeof options.linesAfter  !== 'number') options.linesAfter  = 2;\n\n  var re = /\\r?\\n|\\r|\\0/g;\n  var lineStarts = [ 0 ];\n  var lineEnds = [];\n  var match;\n  var foundLineNo = -1;\n\n  while ((match = re.exec(mark.buffer))) {\n    lineEnds.push(match.index);\n    lineStarts.push(match.index + match[0].length);\n\n    if (mark.position <= match.index && foundLineNo < 0) {\n      foundLineNo = lineStarts.length - 2;\n    }\n  }\n\n  if (foundLineNo < 0) foundLineNo = lineStarts.length - 1;\n\n  var result = '', i, line;\n  var lineNoLength = Math.min(mark.line + options.linesAfter, lineEnds.length).toString().length;\n  var maxLineLength = options.maxLength - (options.indent + lineNoLength + 3);\n\n  for (i = 1; i <= options.linesBefore; i++) {\n    if (foundLineNo - i < 0) break;\n    line = getLine(\n      mark.buffer,\n      lineStarts[foundLineNo - i],\n      lineEnds[foundLineNo - i],\n      mark.position - (lineStarts[foundLineNo] - lineStarts[foundLineNo - i]),\n      maxLineLength\n    );\n    result = common.repeat(' ', options.indent) + padStart((mark.line - i + 1).toString(), lineNoLength) +\n      ' | ' + line.str + '\\n' + result;\n  }\n\n  line = getLine(mark.buffer, lineStarts[foundLineNo], lineEnds[foundLineNo], mark.position, maxLineLength);\n  result += common.repeat(' ', options.indent) + padStart((mark.line + 1).toString(), lineNoLength) +\n    ' | ' + line.str + '\\n';\n  result += common.repeat('-', options.indent + lineNoLength + 3 + line.pos) + '^' + '\\n';\n\n  for (i = 1; i <= options.linesAfter; i++) {\n    if (foundLineNo + i >= lineEnds.length) break;\n    line = getLine(\n      mark.buffer,\n      lineStarts[foundLineNo + i],\n      lineEnds[foundLineNo + i],\n      mark.position - (lineStarts[foundLineNo] - lineStarts[foundLineNo + i]),\n      maxLineLength\n    );\n    result += common.repeat(' ', options.indent) + padStart((mark.line + i + 1).toString(), lineNoLength) +\n      ' | ' + line.str + '\\n';\n  }\n\n  return result.replace(/\\n$/, '');\n}\n\n\nmodule.exports = makeSnippet;\n","'use strict';\n\nvar YAMLException = require('./exception');\n\nvar TYPE_CONSTRUCTOR_OPTIONS = [\n  'kind',\n  'multi',\n  'resolve',\n  'construct',\n  'instanceOf',\n  'predicate',\n  'represent',\n  'representName',\n  'defaultStyle',\n  'styleAliases'\n];\n\nvar YAML_NODE_KINDS = [\n  'scalar',\n  'sequence',\n  'mapping'\n];\n\nfunction compileStyleAliases(map) {\n  var result = {};\n\n  if (map !== null) {\n    Object.keys(map).forEach(function (style) {\n      map[style].forEach(function (alias) {\n        result[String(alias)] = style;\n      });\n    });\n  }\n\n  return result;\n}\n\nfunction Type(tag, options) {\n  options = options || {};\n\n  Object.keys(options).forEach(function (name) {\n    if (TYPE_CONSTRUCTOR_OPTIONS.indexOf(name) === -1) {\n      throw new YAMLException('Unknown option \"' + name + '\" is met in definition of \"' + tag + '\" YAML type.');\n    }\n  });\n\n  // TODO: Add tag format check.\n  this.options       = options; // keep original options in case user wants to extend this type later\n  this.tag           = tag;\n  this.kind          = options['kind']          || null;\n  this.resolve       = options['resolve']       || function () { return true; };\n  this.construct     = options['construct']     || function (data) { return data; };\n  this.instanceOf    = options['instanceOf']    || null;\n  this.predicate     = options['predicate']     || null;\n  this.represent     = options['represent']     || null;\n  this.representName = options['representName'] || null;\n  this.defaultStyle  = options['defaultStyle']  || null;\n  this.multi         = options['multi']         || false;\n  this.styleAliases  = compileStyleAliases(options['styleAliases'] || null);\n\n  if (YAML_NODE_KINDS.indexOf(this.kind) === -1) {\n    throw new YAMLException('Unknown kind \"' + this.kind + '\" is specified for \"' + tag + '\" YAML type.');\n  }\n}\n\nmodule.exports = Type;\n","'use strict';\n\n/*eslint-disable no-bitwise*/\n\n\nvar Type = require('../type');\n\n\n// [ 64, 65, 66 ] -> [ padding, CR, LF ]\nvar BASE64_MAP = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=\\n\\r';\n\n\nfunction resolveYamlBinary(data) {\n  if (data === null) return false;\n\n  var code, idx, bitlen = 0, max = data.length, map = BASE64_MAP;\n\n  // Convert one by one.\n  for (idx = 0; idx < max; idx++) {\n    code = map.indexOf(data.charAt(idx));\n\n    // Skip CR/LF\n    if (code > 64) continue;\n\n    // Fail on illegal characters\n    if (code < 0) return false;\n\n    bitlen += 6;\n  }\n\n  // If there are any bits left, source was corrupted\n  return (bitlen % 8) === 0;\n}\n\nfunction constructYamlBinary(data) {\n  var idx, tailbits,\n      input = data.replace(/[\\r\\n=]/g, ''), // remove CR/LF & padding to simplify scan\n      max = input.length,\n      map = BASE64_MAP,\n      bits = 0,\n      result = [];\n\n  // Collect by 6*4 bits (3 bytes)\n\n  for (idx = 0; idx < max; idx++) {\n    if ((idx % 4 === 0) && idx) {\n      result.push((bits >> 16) & 0xFF);\n      result.push((bits >> 8) & 0xFF);\n      result.push(bits & 0xFF);\n    }\n\n    bits = (bits << 6) | map.indexOf(input.charAt(idx));\n  }\n\n  // Dump tail\n\n  tailbits = (max % 4) * 6;\n\n  if (tailbits === 0) {\n    result.push((bits >> 16) & 0xFF);\n    result.push((bits >> 8) & 0xFF);\n    result.push(bits & 0xFF);\n  } else if (tailbits === 18) {\n    result.push((bits >> 10) & 0xFF);\n    result.push((bits >> 2) & 0xFF);\n  } else if (tailbits === 12) {\n    result.push((bits >> 4) & 0xFF);\n  }\n\n  return new Uint8Array(result);\n}\n\nfunction representYamlBinary(object /*, style*/) {\n  var result = '', bits = 0, idx, tail,\n      max = object.length,\n      map = BASE64_MAP;\n\n  // Convert every three bytes to 4 ASCII characters.\n\n  for (idx = 0; idx < max; idx++) {\n    if ((idx % 3 === 0) && idx) {\n      result += map[(bits >> 18) & 0x3F];\n      result += map[(bits >> 12) & 0x3F];\n      result += map[(bits >> 6) & 0x3F];\n      result += map[bits & 0x3F];\n    }\n\n    bits = (bits << 8) + object[idx];\n  }\n\n  // Dump tail\n\n  tail = max % 3;\n\n  if (tail === 0) {\n    result += map[(bits >> 18) & 0x3F];\n    result += map[(bits >> 12) & 0x3F];\n    result += map[(bits >> 6) & 0x3F];\n    result += map[bits & 0x3F];\n  } else if (tail === 2) {\n    result += map[(bits >> 10) & 0x3F];\n    result += map[(bits >> 4) & 0x3F];\n    result += map[(bits << 2) & 0x3F];\n    result += map[64];\n  } else if (tail === 1) {\n    result += map[(bits >> 2) & 0x3F];\n    result += map[(bits << 4) & 0x3F];\n    result += map[64];\n    result += map[64];\n  }\n\n  return result;\n}\n\nfunction isBinary(obj) {\n  return Object.prototype.toString.call(obj) ===  '[object Uint8Array]';\n}\n\nmodule.exports = new Type('tag:yaml.org,2002:binary', {\n  kind: 'scalar',\n  resolve: resolveYamlBinary,\n  construct: constructYamlBinary,\n  predicate: isBinary,\n  represent: representYamlBinary\n});\n","'use strict';\n\nvar Type = require('../type');\n\nfunction resolveYamlBoolean(data) {\n  if (data === null) return false;\n\n  var max = data.length;\n\n  return (max === 4 && (data === 'true' || data === 'True' || data === 'TRUE')) ||\n         (max === 5 && (data === 'false' || data === 'False' || data === 'FALSE'));\n}\n\nfunction constructYamlBoolean(data) {\n  return data === 'true' ||\n         data === 'True' ||\n         data === 'TRUE';\n}\n\nfunction isBoolean(object) {\n  return Object.prototype.toString.call(object) === '[object Boolean]';\n}\n\nmodule.exports = new Type('tag:yaml.org,2002:bool', {\n  kind: 'scalar',\n  resolve: resolveYamlBoolean,\n  construct: constructYamlBoolean,\n  predicate: isBoolean,\n  represent: {\n    lowercase: function (object) { return object ? 'true' : 'false'; },\n    uppercase: function (object) { return object ? 'TRUE' : 'FALSE'; },\n    camelcase: function (object) { return object ? 'True' : 'False'; }\n  },\n  defaultStyle: 'lowercase'\n});\n","'use strict';\n\nvar common = require('../common');\nvar Type   = require('../type');\n\nvar YAML_FLOAT_PATTERN = new RegExp(\n  // 2.5e4, 2.5 and integers\n  '^(?:[-+]?(?:[0-9][0-9_]*)(?:\\\\.[0-9_]*)?(?:[eE][-+]?[0-9]+)?' +\n  // .2e4, .2\n  // special case, seems not from spec\n  '|\\\\.[0-9_]+(?:[eE][-+]?[0-9]+)?' +\n  // .inf\n  '|[-+]?\\\\.(?:inf|Inf|INF)' +\n  // .nan\n  '|\\\\.(?:nan|NaN|NAN))$');\n\nfunction resolveYamlFloat(data) {\n  if (data === null) return false;\n\n  if (!YAML_FLOAT_PATTERN.test(data) ||\n      // Quick hack to not allow integers end with `_`\n      // Probably should update regexp & check speed\n      data[data.length - 1] === '_') {\n    return false;\n  }\n\n  return true;\n}\n\nfunction constructYamlFloat(data) {\n  var value, sign;\n\n  value  = data.replace(/_/g, '').toLowerCase();\n  sign   = value[0] === '-' ? -1 : 1;\n\n  if ('+-'.indexOf(value[0]) >= 0) {\n    value = value.slice(1);\n  }\n\n  if (value === '.inf') {\n    return (sign === 1) ? Number.POSITIVE_INFINITY : Number.NEGATIVE_INFINITY;\n\n  } else if (value === '.nan') {\n    return NaN;\n  }\n  return sign * parseFloat(value, 10);\n}\n\n\nvar SCIENTIFIC_WITHOUT_DOT = /^[-+]?[0-9]+e/;\n\nfunction representYamlFloat(object, style) {\n  var res;\n\n  if (isNaN(object)) {\n    switch (style) {\n      case 'lowercase': return '.nan';\n      case 'uppercase': return '.NAN';\n      case 'camelcase': return '.NaN';\n    }\n  } else if (Number.POSITIVE_INFINITY === object) {\n    switch (style) {\n      case 'lowercase': return '.inf';\n      case 'uppercase': return '.INF';\n      case 'camelcase': return '.Inf';\n    }\n  } else if (Number.NEGATIVE_INFINITY === object) {\n    switch (style) {\n      case 'lowercase': return '-.inf';\n      case 'uppercase': return '-.INF';\n      case 'camelcase': return '-.Inf';\n    }\n  } else if (common.isNegativeZero(object)) {\n    return '-0.0';\n  }\n\n  res = object.toString(10);\n\n  // JS stringifier can build scientific format without dots: 5e-100,\n  // while YAML requres dot: 5.e-100. Fix it with simple hack\n\n  return SCIENTIFIC_WITHOUT_DOT.test(res) ? res.replace('e', '.e') : res;\n}\n\nfunction isFloat(object) {\n  return (Object.prototype.toString.call(object) === '[object Number]') &&\n         (object % 1 !== 0 || common.isNegativeZero(object));\n}\n\nmodule.exports = new Type('tag:yaml.org,2002:float', {\n  kind: 'scalar',\n  resolve: resolveYamlFloat,\n  construct: constructYamlFloat,\n  predicate: isFloat,\n  represent: representYamlFloat,\n  defaultStyle: 'lowercase'\n});\n","'use strict';\n\nvar common = require('../common');\nvar Type   = require('../type');\n\nfunction isHexCode(c) {\n  return ((0x30/* 0 */ <= c) && (c <= 0x39/* 9 */)) ||\n         ((0x41/* A */ <= c) && (c <= 0x46/* F */)) ||\n         ((0x61/* a */ <= c) && (c <= 0x66/* f */));\n}\n\nfunction isOctCode(c) {\n  return ((0x30/* 0 */ <= c) && (c <= 0x37/* 7 */));\n}\n\nfunction isDecCode(c) {\n  return ((0x30/* 0 */ <= c) && (c <= 0x39/* 9 */));\n}\n\nfunction resolveYamlInteger(data) {\n  if (data === null) return false;\n\n  var max = data.length,\n      index = 0,\n      hasDigits = false,\n      ch;\n\n  if (!max) return false;\n\n  ch = data[index];\n\n  // sign\n  if (ch === '-' || ch === '+') {\n    ch = data[++index];\n  }\n\n  if (ch === '0') {\n    // 0\n    if (index + 1 === max) return true;\n    ch = data[++index];\n\n    // base 2, base 8, base 16\n\n    if (ch === 'b') {\n      // base 2\n      index++;\n\n      for (; index < max; index++) {\n        ch = data[index];\n        if (ch === '_') continue;\n        if (ch !== '0' && ch !== '1') return false;\n        hasDigits = true;\n      }\n      return hasDigits && ch !== '_';\n    }\n\n\n    if (ch === 'x') {\n      // base 16\n      index++;\n\n      for (; index < max; index++) {\n        ch = data[index];\n        if (ch === '_') continue;\n        if (!isHexCode(data.charCodeAt(index))) return false;\n        hasDigits = true;\n      }\n      return hasDigits && ch !== '_';\n    }\n\n\n    if (ch === 'o') {\n      // base 8\n      index++;\n\n      for (; index < max; index++) {\n        ch = data[index];\n        if (ch === '_') continue;\n        if (!isOctCode(data.charCodeAt(index))) return false;\n        hasDigits = true;\n      }\n      return hasDigits && ch !== '_';\n    }\n  }\n\n  // base 10 (except 0)\n\n  // value should not start with `_`;\n  if (ch === '_') return false;\n\n  for (; index < max; index++) {\n    ch = data[index];\n    if (ch === '_') continue;\n    if (!isDecCode(data.charCodeAt(index))) {\n      return false;\n    }\n    hasDigits = true;\n  }\n\n  // Should have digits and should not end with `_`\n  if (!hasDigits || ch === '_') return false;\n\n  return true;\n}\n\nfunction constructYamlInteger(data) {\n  var value = data, sign = 1, ch;\n\n  if (value.indexOf('_') !== -1) {\n    value = value.replace(/_/g, '');\n  }\n\n  ch = value[0];\n\n  if (ch === '-' || ch === '+') {\n    if (ch === '-') sign = -1;\n    value = value.slice(1);\n    ch = value[0];\n  }\n\n  if (value === '0') return 0;\n\n  if (ch === '0') {\n    if (value[1] === 'b') return sign * parseInt(value.slice(2), 2);\n    if (value[1] === 'x') return sign * parseInt(value.slice(2), 16);\n    if (value[1] === 'o') return sign * parseInt(value.slice(2), 8);\n  }\n\n  return sign * parseInt(value, 10);\n}\n\nfunction isInteger(object) {\n  return (Object.prototype.toString.call(object)) === '[object Number]' &&\n         (object % 1 === 0 && !common.isNegativeZero(object));\n}\n\nmodule.exports = new Type('tag:yaml.org,2002:int', {\n  kind: 'scalar',\n  resolve: resolveYamlInteger,\n  construct: constructYamlInteger,\n  predicate: isInteger,\n  represent: {\n    binary:      function (obj) { return obj >= 0 ? '0b' + obj.toString(2) : '-0b' + obj.toString(2).slice(1); },\n    octal:       function (obj) { return obj >= 0 ? '0o'  + obj.toString(8) : '-0o'  + obj.toString(8).slice(1); },\n    decimal:     function (obj) { return obj.toString(10); },\n    /* eslint-disable max-len */\n    hexadecimal: function (obj) { return obj >= 0 ? '0x' + obj.toString(16).toUpperCase() :  '-0x' + obj.toString(16).toUpperCase().slice(1); }\n  },\n  defaultStyle: 'decimal',\n  styleAliases: {\n    binary:      [ 2,  'bin' ],\n    octal:       [ 8,  'oct' ],\n    decimal:     [ 10, 'dec' ],\n    hexadecimal: [ 16, 'hex' ]\n  }\n});\n","'use strict';\n\nvar Type = require('../type');\n\nmodule.exports = new Type('tag:yaml.org,2002:map', {\n  kind: 'mapping',\n  construct: function (data) { return data !== null ? data : {}; }\n});\n","'use strict';\n\nvar Type = require('../type');\n\nfunction resolveYamlMerge(data) {\n  return data === '<<' || data === null;\n}\n\nmodule.exports = new Type('tag:yaml.org,2002:merge', {\n  kind: 'scalar',\n  resolve: resolveYamlMerge\n});\n","'use strict';\n\nvar Type = require('../type');\n\nfunction resolveYamlNull(data) {\n  if (data === null) return true;\n\n  var max = data.length;\n\n  return (max === 1 && data === '~') ||\n         (max === 4 && (data === 'null' || data === 'Null' || data === 'NULL'));\n}\n\nfunction constructYamlNull() {\n  return null;\n}\n\nfunction isNull(object) {\n  return object === null;\n}\n\nmodule.exports = new Type('tag:yaml.org,2002:null', {\n  kind: 'scalar',\n  resolve: resolveYamlNull,\n  construct: constructYamlNull,\n  predicate: isNull,\n  represent: {\n    canonical: function () { return '~';    },\n    lowercase: function () { return 'null'; },\n    uppercase: function () { return 'NULL'; },\n    camelcase: function () { return 'Null'; },\n    empty:     function () { return '';     }\n  },\n  defaultStyle: 'lowercase'\n});\n","'use strict';\n\nvar Type = require('../type');\n\nvar _hasOwnProperty = Object.prototype.hasOwnProperty;\nvar _toString       = Object.prototype.toString;\n\nfunction resolveYamlOmap(data) {\n  if (data === null) return true;\n\n  var objectKeys = [], index, length, pair, pairKey, pairHasKey,\n      object = data;\n\n  for (index = 0, length = object.length; index < length; index += 1) {\n    pair = object[index];\n    pairHasKey = false;\n\n    if (_toString.call(pair) !== '[object Object]') return false;\n\n    for (pairKey in pair) {\n      if (_hasOwnProperty.call(pair, pairKey)) {\n        if (!pairHasKey) pairHasKey = true;\n        else return false;\n      }\n    }\n\n    if (!pairHasKey) return false;\n\n    if (objectKeys.indexOf(pairKey) === -1) objectKeys.push(pairKey);\n    else return false;\n  }\n\n  return true;\n}\n\nfunction constructYamlOmap(data) {\n  return data !== null ? data : [];\n}\n\nmodule.exports = new Type('tag:yaml.org,2002:omap', {\n  kind: 'sequence',\n  resolve: resolveYamlOmap,\n  construct: constructYamlOmap\n});\n","'use strict';\n\nvar Type = require('../type');\n\nvar _toString = Object.prototype.toString;\n\nfunction resolveYamlPairs(data) {\n  if (data === null) return true;\n\n  var index, length, pair, keys, result,\n      object = data;\n\n  result = new Array(object.length);\n\n  for (index = 0, length = object.length; index < length; index += 1) {\n    pair = object[index];\n\n    if (_toString.call(pair) !== '[object Object]') return false;\n\n    keys = Object.keys(pair);\n\n    if (keys.length !== 1) return false;\n\n    result[index] = [ keys[0], pair[keys[0]] ];\n  }\n\n  return true;\n}\n\nfunction constructYamlPairs(data) {\n  if (data === null) return [];\n\n  var index, length, pair, keys, result,\n      object = data;\n\n  result = new Array(object.length);\n\n  for (index = 0, length = object.length; index < length; index += 1) {\n    pair = object[index];\n\n    keys = Object.keys(pair);\n\n    result[index] = [ keys[0], pair[keys[0]] ];\n  }\n\n  return result;\n}\n\nmodule.exports = new Type('tag:yaml.org,2002:pairs', {\n  kind: 'sequence',\n  resolve: resolveYamlPairs,\n  construct: constructYamlPairs\n});\n","'use strict';\n\nvar Type = require('../type');\n\nmodule.exports = new Type('tag:yaml.org,2002:seq', {\n  kind: 'sequence',\n  construct: function (data) { return data !== null ? data : []; }\n});\n","'use strict';\n\nvar Type = require('../type');\n\nvar _hasOwnProperty = Object.prototype.hasOwnProperty;\n\nfunction resolveYamlSet(data) {\n  if (data === null) return true;\n\n  var key, object = data;\n\n  for (key in object) {\n    if (_hasOwnProperty.call(object, key)) {\n      if (object[key] !== null) return false;\n    }\n  }\n\n  return true;\n}\n\nfunction constructYamlSet(data) {\n  return data !== null ? data : {};\n}\n\nmodule.exports = new Type('tag:yaml.org,2002:set', {\n  kind: 'mapping',\n  resolve: resolveYamlSet,\n  construct: constructYamlSet\n});\n","'use strict';\n\nvar Type = require('../type');\n\nmodule.exports = new Type('tag:yaml.org,2002:str', {\n  kind: 'scalar',\n  construct: function (data) { return data !== null ? data : ''; }\n});\n","'use strict';\n\nvar Type = require('../type');\n\nvar YAML_DATE_REGEXP = new RegExp(\n  '^([0-9][0-9][0-9][0-9])'          + // [1] year\n  '-([0-9][0-9])'                    + // [2] month\n  '-([0-9][0-9])$');                   // [3] day\n\nvar YAML_TIMESTAMP_REGEXP = new RegExp(\n  '^([0-9][0-9][0-9][0-9])'          + // [1] year\n  '-([0-9][0-9]?)'                   + // [2] month\n  '-([0-9][0-9]?)'                   + // [3] day\n  '(?:[Tt]|[ \\\\t]+)'                 + // ...\n  '([0-9][0-9]?)'                    + // [4] hour\n  ':([0-9][0-9])'                    + // [5] minute\n  ':([0-9][0-9])'                    + // [6] second\n  '(?:\\\\.([0-9]*))?'                 + // [7] fraction\n  '(?:[ \\\\t]*(Z|([-+])([0-9][0-9]?)' + // [8] tz [9] tz_sign [10] tz_hour\n  '(?::([0-9][0-9]))?))?$');           // [11] tz_minute\n\nfunction resolveYamlTimestamp(data) {\n  if (data === null) return false;\n  if (YAML_DATE_REGEXP.exec(data) !== null) return true;\n  if (YAML_TIMESTAMP_REGEXP.exec(data) !== null) return true;\n  return false;\n}\n\nfunction constructYamlTimestamp(data) {\n  var match, year, month, day, hour, minute, second, fraction = 0,\n      delta = null, tz_hour, tz_minute, date;\n\n  match = YAML_DATE_REGEXP.exec(data);\n  if (match === null) match = YAML_TIMESTAMP_REGEXP.exec(data);\n\n  if (match === null) throw new Error('Date resolve error');\n\n  // match: [1] year [2] month [3] day\n\n  year = +(match[1]);\n  month = +(match[2]) - 1; // JS month starts with 0\n  day = +(match[3]);\n\n  if (!match[4]) { // no hour\n    return new Date(Date.UTC(year, month, day));\n  }\n\n  // match: [4] hour [5] minute [6] second [7] fraction\n\n  hour = +(match[4]);\n  minute = +(match[5]);\n  second = +(match[6]);\n\n  if (match[7]) {\n    fraction = match[7].slice(0, 3);\n    while (fraction.length < 3) { // milli-seconds\n      fraction += '0';\n    }\n    fraction = +fraction;\n  }\n\n  // match: [8] tz [9] tz_sign [10] tz_hour [11] tz_minute\n\n  if (match[9]) {\n    tz_hour = +(match[10]);\n    tz_minute = +(match[11] || 0);\n    delta = (tz_hour * 60 + tz_minute) * 60000; // delta in mili-seconds\n    if (match[9] === '-') delta = -delta;\n  }\n\n  date = new Date(Date.UTC(year, month, day, hour, minute, second, fraction));\n\n  if (delta) date.setTime(date.getTime() - delta);\n\n  return date;\n}\n\nfunction representYamlTimestamp(object /*, style*/) {\n  return object.toISOString();\n}\n\nmodule.exports = new Type('tag:yaml.org,2002:timestamp', {\n  kind: 'scalar',\n  resolve: resolveYamlTimestamp,\n  construct: constructYamlTimestamp,\n  instanceOf: Date,\n  represent: representYamlTimestamp\n});\n","module.exports = require('./lib/tunnel');\n","'use strict';\n\nvar net = require('net');\nvar tls = require('tls');\nvar http = require('http');\nvar https = require('https');\nvar events = require('events');\nvar assert = require('assert');\nvar util = require('util');\n\n\nexports.httpOverHttp = httpOverHttp;\nexports.httpsOverHttp = httpsOverHttp;\nexports.httpOverHttps = httpOverHttps;\nexports.httpsOverHttps = httpsOverHttps;\n\n\nfunction httpOverHttp(options) {\n  var agent = new TunnelingAgent(options);\n  agent.request = http.request;\n  return agent;\n}\n\nfunction httpsOverHttp(options) {\n  var agent = new TunnelingAgent(options);\n  agent.request = http.request;\n  agent.createSocket = createSecureSocket;\n  agent.defaultPort = 443;\n  return agent;\n}\n\nfunction httpOverHttps(options) {\n  var agent = new TunnelingAgent(options);\n  agent.request = https.request;\n  return agent;\n}\n\nfunction httpsOverHttps(options) {\n  var agent = new TunnelingAgent(options);\n  agent.request = https.request;\n  agent.createSocket = createSecureSocket;\n  agent.defaultPort = 443;\n  return agent;\n}\n\n\nfunction TunnelingAgent(options) {\n  var self = this;\n  self.options = options || {};\n  self.proxyOptions = self.options.proxy || {};\n  self.maxSockets = self.options.maxSockets || http.Agent.defaultMaxSockets;\n  self.requests = [];\n  self.sockets = [];\n\n  self.on('free', function onFree(socket, host, port, localAddress) {\n    var options = toOptions(host, port, localAddress);\n    for (var i = 0, len = self.requests.length; i < len; ++i) {\n      var pending = self.requests[i];\n      if (pending.host === options.host && pending.port === options.port) {\n        // Detect the request to connect same origin server,\n        // reuse the connection.\n        self.requests.splice(i, 1);\n        pending.request.onSocket(socket);\n        return;\n      }\n    }\n    socket.destroy();\n    self.removeSocket(socket);\n  });\n}\nutil.inherits(TunnelingAgent, events.EventEmitter);\n\nTunnelingAgent.prototype.addRequest = function addRequest(req, host, port, localAddress) {\n  var self = this;\n  var options = mergeOptions({request: req}, self.options, toOptions(host, port, localAddress));\n\n  if (self.sockets.length >= this.maxSockets) {\n    // We are over limit so we'll add it to the queue.\n    self.requests.push(options);\n    return;\n  }\n\n  // If we are under maxSockets create a new one.\n  self.createSocket(options, function(socket) {\n    socket.on('free', onFree);\n    socket.on('close', onCloseOrRemove);\n    socket.on('agentRemove', onCloseOrRemove);\n    req.onSocket(socket);\n\n    function onFree() {\n      self.emit('free', socket, options);\n    }\n\n    function onCloseOrRemove(err) {\n      self.removeSocket(socket);\n      socket.removeListener('free', onFree);\n      socket.removeListener('close', onCloseOrRemove);\n      socket.removeListener('agentRemove', onCloseOrRemove);\n    }\n  });\n};\n\nTunnelingAgent.prototype.createSocket = function createSocket(options, cb) {\n  var self = this;\n  var placeholder = {};\n  self.sockets.push(placeholder);\n\n  var connectOptions = mergeOptions({}, self.proxyOptions, {\n    method: 'CONNECT',\n    path: options.host + ':' + options.port,\n    agent: false,\n    headers: {\n      host: options.host + ':' + options.port\n    }\n  });\n  if (options.localAddress) {\n    connectOptions.localAddress = options.localAddress;\n  }\n  if (connectOptions.proxyAuth) {\n    connectOptions.headers = connectOptions.headers || {};\n    connectOptions.headers['Proxy-Authorization'] = 'Basic ' +\n        new Buffer(connectOptions.proxyAuth).toString('base64');\n  }\n\n  debug('making CONNECT request');\n  var connectReq = self.request(connectOptions);\n  connectReq.useChunkedEncodingByDefault = false; // for v0.6\n  connectReq.once('response', onResponse); // for v0.6\n  connectReq.once('upgrade', onUpgrade);   // for v0.6\n  connectReq.once('connect', onConnect);   // for v0.7 or later\n  connectReq.once('error', onError);\n  connectReq.end();\n\n  function onResponse(res) {\n    // Very hacky. This is necessary to avoid http-parser leaks.\n    res.upgrade = true;\n  }\n\n  function onUpgrade(res, socket, head) {\n    // Hacky.\n    process.nextTick(function() {\n      onConnect(res, socket, head);\n    });\n  }\n\n  function onConnect(res, socket, head) {\n    connectReq.removeAllListeners();\n    socket.removeAllListeners();\n\n    if (res.statusCode !== 200) {\n      debug('tunneling socket could not be established, statusCode=%d',\n        res.statusCode);\n      socket.destroy();\n      var error = new Error('tunneling socket could not be established, ' +\n        'statusCode=' + res.statusCode);\n      error.code = 'ECONNRESET';\n      options.request.emit('error', error);\n      self.removeSocket(placeholder);\n      return;\n    }\n    if (head.length > 0) {\n      debug('got illegal response body from proxy');\n      socket.destroy();\n      var error = new Error('got illegal response body from proxy');\n      error.code = 'ECONNRESET';\n      options.request.emit('error', error);\n      self.removeSocket(placeholder);\n      return;\n    }\n    debug('tunneling connection has established');\n    self.sockets[self.sockets.indexOf(placeholder)] = socket;\n    return cb(socket);\n  }\n\n  function onError(cause) {\n    connectReq.removeAllListeners();\n\n    debug('tunneling socket could not be established, cause=%s\\n',\n          cause.message, cause.stack);\n    var error = new Error('tunneling socket could not be established, ' +\n                          'cause=' + cause.message);\n    error.code = 'ECONNRESET';\n    options.request.emit('error', error);\n    self.removeSocket(placeholder);\n  }\n};\n\nTunnelingAgent.prototype.removeSocket = function removeSocket(socket) {\n  var pos = this.sockets.indexOf(socket)\n  if (pos === -1) {\n    return;\n  }\n  this.sockets.splice(pos, 1);\n\n  var pending = this.requests.shift();\n  if (pending) {\n    // If we have pending requests and a socket gets closed a new one\n    // needs to be created to take over in the pool for the one that closed.\n    this.createSocket(pending, function(socket) {\n      pending.request.onSocket(socket);\n    });\n  }\n};\n\nfunction createSecureSocket(options, cb) {\n  var self = this;\n  TunnelingAgent.prototype.createSocket.call(self, options, function(socket) {\n    var hostHeader = options.request.getHeader('host');\n    var tlsOptions = mergeOptions({}, self.options, {\n      socket: socket,\n      servername: hostHeader ? hostHeader.replace(/:.*$/, '') : options.host\n    });\n\n    // 0 is dummy port for v0.6\n    var secureSocket = tls.connect(0, tlsOptions);\n    self.sockets[self.sockets.indexOf(socket)] = secureSocket;\n    cb(secureSocket);\n  });\n}\n\n\nfunction toOptions(host, port, localAddress) {\n  if (typeof host === 'string') { // since v0.10\n    return {\n      host: host,\n      port: port,\n      localAddress: localAddress\n    };\n  }\n  return host; // for v0.11 or later\n}\n\nfunction mergeOptions(target) {\n  for (var i = 1, len = arguments.length; i < len; ++i) {\n    var overrides = arguments[i];\n    if (typeof overrides === 'object') {\n      var keys = Object.keys(overrides);\n      for (var j = 0, keyLen = keys.length; j < keyLen; ++j) {\n        var k = keys[j];\n        if (overrides[k] !== undefined) {\n          target[k] = overrides[k];\n        }\n      }\n    }\n  }\n  return target;\n}\n\n\nvar debug;\nif (process.env.NODE_DEBUG && /\\btunnel\\b/.test(process.env.NODE_DEBUG)) {\n  debug = function() {\n    var args = Array.prototype.slice.call(arguments);\n    if (typeof args[0] === 'string') {\n      args[0] = 'TUNNEL: ' + args[0];\n    } else {\n      args.unshift('TUNNEL:');\n    }\n    console.error.apply(console, args);\n  }\n} else {\n  debug = function() {};\n}\nexports.debug = debug; // for test\n","//     Underscore.js 1.6.0\n//     http://underscorejs.org\n//     (c) 2009-2014 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors\n//     Underscore may be freely distributed under the MIT license.\n\n(function() {\n\n  // Baseline setup\n  // --------------\n\n  // Establish the root object, `window` in the browser, or `exports` on the server.\n  var root = this;\n\n  // Save the previous value of the `_` variable.\n  var previousUnderscore = root._;\n\n  // Establish the object that gets returned to break out of a loop iteration.\n  var breaker = {};\n\n  // Save bytes in the minified (but not gzipped) version:\n  var ArrayProto = Array.prototype, ObjProto = Object.prototype, FuncProto = Function.prototype;\n\n  // Create quick reference variables for speed access to core prototypes.\n  var\n    push             = ArrayProto.push,\n    slice            = ArrayProto.slice,\n    concat           = ArrayProto.concat,\n    toString         = ObjProto.toString,\n    hasOwnProperty   = ObjProto.hasOwnProperty;\n\n  // All **ECMAScript 5** native function implementations that we hope to use\n  // are declared here.\n  var\n    nativeForEach      = ArrayProto.forEach,\n    nativeMap          = ArrayProto.map,\n    nativeReduce       = ArrayProto.reduce,\n    nativeReduceRight  = ArrayProto.reduceRight,\n    nativeFilter       = ArrayProto.filter,\n    nativeEvery        = ArrayProto.every,\n    nativeSome         = ArrayProto.some,\n    nativeIndexOf      = ArrayProto.indexOf,\n    nativeLastIndexOf  = ArrayProto.lastIndexOf,\n    nativeIsArray      = Array.isArray,\n    nativeKeys         = Object.keys,\n    nativeBind         = FuncProto.bind;\n\n  // Create a safe reference to the Underscore object for use below.\n  var _ = function(obj) {\n    if (obj instanceof _) return obj;\n    if (!(this instanceof _)) return new _(obj);\n    this._wrapped = obj;\n  };\n\n  // Export the Underscore object for **Node.js**, with\n  // backwards-compatibility for the old `require()` API. If we're in\n  // the browser, add `_` as a global object via a string identifier,\n  // for Closure Compiler \"advanced\" mode.\n  if (typeof exports !== 'undefined') {\n    if (typeof module !== 'undefined' && module.exports) {\n      exports = module.exports = _;\n    }\n    exports._ = _;\n  } else {\n    root._ = _;\n  }\n\n  // Current version.\n  _.VERSION = '1.6.0';\n\n  // Collection Functions\n  // --------------------\n\n  // The cornerstone, an `each` implementation, aka `forEach`.\n  // Handles objects with the built-in `forEach`, arrays, and raw objects.\n  // Delegates to **ECMAScript 5**'s native `forEach` if available.\n  var each = _.each = _.forEach = function(obj, iterator, context) {\n    if (obj == null) return obj;\n    if (nativeForEach && obj.forEach === nativeForEach) {\n      obj.forEach(iterator, context);\n    } else if (obj.length === +obj.length) {\n      for (var i = 0, length = obj.length; i < length; i++) {\n        if (iterator.call(context, obj[i], i, obj) === breaker) return;\n      }\n    } else {\n      var keys = _.keys(obj);\n      for (var i = 0, length = keys.length; i < length; i++) {\n        if (iterator.call(context, obj[keys[i]], keys[i], obj) === breaker) return;\n      }\n    }\n    return obj;\n  };\n\n  // Return the results of applying the iterator to each element.\n  // Delegates to **ECMAScript 5**'s native `map` if available.\n  _.map = _.collect = function(obj, iterator, context) {\n    var results = [];\n    if (obj == null) return results;\n    if (nativeMap && obj.map === nativeMap) return obj.map(iterator, context);\n    each(obj, function(value, index, list) {\n      results.push(iterator.call(context, value, index, list));\n    });\n    return results;\n  };\n\n  var reduceError = 'Reduce of empty array with no initial value';\n\n  // **Reduce** builds up a single result from a list of values, aka `inject`,\n  // or `foldl`. Delegates to **ECMAScript 5**'s native `reduce` if available.\n  _.reduce = _.foldl = _.inject = function(obj, iterator, memo, context) {\n    var initial = arguments.length > 2;\n    if (obj == null) obj = [];\n    if (nativeReduce && obj.reduce === nativeReduce) {\n      if (context) iterator = _.bind(iterator, context);\n      return initial ? obj.reduce(iterator, memo) : obj.reduce(iterator);\n    }\n    each(obj, function(value, index, list) {\n      if (!initial) {\n        memo = value;\n        initial = true;\n      } else {\n        memo = iterator.call(context, memo, value, index, list);\n      }\n    });\n    if (!initial) throw new TypeError(reduceError);\n    return memo;\n  };\n\n  // The right-associative version of reduce, also known as `foldr`.\n  // Delegates to **ECMAScript 5**'s native `reduceRight` if available.\n  _.reduceRight = _.foldr = function(obj, iterator, memo, context) {\n    var initial = arguments.length > 2;\n    if (obj == null) obj = [];\n    if (nativeReduceRight && obj.reduceRight === nativeReduceRight) {\n      if (context) iterator = _.bind(iterator, context);\n      return initial ? obj.reduceRight(iterator, memo) : obj.reduceRight(iterator);\n    }\n    var length = obj.length;\n    if (length !== +length) {\n      var keys = _.keys(obj);\n      length = keys.length;\n    }\n    each(obj, function(value, index, list) {\n      index = keys ? keys[--length] : --length;\n      if (!initial) {\n        memo = obj[index];\n        initial = true;\n      } else {\n        memo = iterator.call(context, memo, obj[index], index, list);\n      }\n    });\n    if (!initial) throw new TypeError(reduceError);\n    return memo;\n  };\n\n  // Return the first value which passes a truth test. Aliased as `detect`.\n  _.find = _.detect = function(obj, predicate, context) {\n    var result;\n    any(obj, function(value, index, list) {\n      if (predicate.call(context, value, index, list)) {\n        result = value;\n        return true;\n      }\n    });\n    return result;\n  };\n\n  // Return all the elements that pass a truth test.\n  // Delegates to **ECMAScript 5**'s native `filter` if available.\n  // Aliased as `select`.\n  _.filter = _.select = function(obj, predicate, context) {\n    var results = [];\n    if (obj == null) return results;\n    if (nativeFilter && obj.filter === nativeFilter) return obj.filter(predicate, context);\n    each(obj, function(value, index, list) {\n      if (predicate.call(context, value, index, list)) results.push(value);\n    });\n    return results;\n  };\n\n  // Return all the elements for which a truth test fails.\n  _.reject = function(obj, predicate, context) {\n    return _.filter(obj, function(value, index, list) {\n      return !predicate.call(context, value, index, list);\n    }, context);\n  };\n\n  // Determine whether all of the elements match a truth test.\n  // Delegates to **ECMAScript 5**'s native `every` if available.\n  // Aliased as `all`.\n  _.every = _.all = function(obj, predicate, context) {\n    predicate || (predicate = _.identity);\n    var result = true;\n    if (obj == null) return result;\n    if (nativeEvery && obj.every === nativeEvery) return obj.every(predicate, context);\n    each(obj, function(value, index, list) {\n      if (!(result = result && predicate.call(context, value, index, list))) return breaker;\n    });\n    return !!result;\n  };\n\n  // Determine if at least one element in the object matches a truth test.\n  // Delegates to **ECMAScript 5**'s native `some` if available.\n  // Aliased as `any`.\n  var any = _.some = _.any = function(obj, predicate, context) {\n    predicate || (predicate = _.identity);\n    var result = false;\n    if (obj == null) return result;\n    if (nativeSome && obj.some === nativeSome) return obj.some(predicate, context);\n    each(obj, function(value, index, list) {\n      if (result || (result = predicate.call(context, value, index, list))) return breaker;\n    });\n    return !!result;\n  };\n\n  // Determine if the array or object contains a given value (using `===`).\n  // Aliased as `include`.\n  _.contains = _.include = function(obj, target) {\n    if (obj == null) return false;\n    if (nativeIndexOf && obj.indexOf === nativeIndexOf) return obj.indexOf(target) != -1;\n    return any(obj, function(value) {\n      return value === target;\n    });\n  };\n\n  // Invoke a method (with arguments) on every item in a collection.\n  _.invoke = function(obj, method) {\n    var args = slice.call(arguments, 2);\n    var isFunc = _.isFunction(method);\n    return _.map(obj, function(value) {\n      return (isFunc ? method : value[method]).apply(value, args);\n    });\n  };\n\n  // Convenience version of a common use case of `map`: fetching a property.\n  _.pluck = function(obj, key) {\n    return _.map(obj, _.property(key));\n  };\n\n  // Convenience version of a common use case of `filter`: selecting only objects\n  // containing specific `key:value` pairs.\n  _.where = function(obj, attrs) {\n    return _.filter(obj, _.matches(attrs));\n  };\n\n  // Convenience version of a common use case of `find`: getting the first object\n  // containing specific `key:value` pairs.\n  _.findWhere = function(obj, attrs) {\n    return _.find(obj, _.matches(attrs));\n  };\n\n  // Return the maximum element or (element-based computation).\n  // Can't optimize arrays of integers longer than 65,535 elements.\n  // See [WebKit Bug 80797](https://bugs.webkit.org/show_bug.cgi?id=80797)\n  _.max = function(obj, iterator, context) {\n    if (!iterator && _.isArray(obj) && obj[0] === +obj[0] && obj.length < 65535) {\n      return Math.max.apply(Math, obj);\n    }\n    var result = -Infinity, lastComputed = -Infinity;\n    each(obj, function(value, index, list) {\n      var computed = iterator ? iterator.call(context, value, index, list) : value;\n      if (computed > lastComputed) {\n        result = value;\n        lastComputed = computed;\n      }\n    });\n    return result;\n  };\n\n  // Return the minimum element (or element-based computation).\n  _.min = function(obj, iterator, context) {\n    if (!iterator && _.isArray(obj) && obj[0] === +obj[0] && obj.length < 65535) {\n      return Math.min.apply(Math, obj);\n    }\n    var result = Infinity, lastComputed = Infinity;\n    each(obj, function(value, index, list) {\n      var computed = iterator ? iterator.call(context, value, index, list) : value;\n      if (computed < lastComputed) {\n        result = value;\n        lastComputed = computed;\n      }\n    });\n    return result;\n  };\n\n  // Shuffle an array, using the modern version of the\n  // [Fisher-Yates shuffle](http://en.wikipedia.org/wiki/Fisher–Yates_shuffle).\n  _.shuffle = function(obj) {\n    var rand;\n    var index = 0;\n    var shuffled = [];\n    each(obj, function(value) {\n      rand = _.random(index++);\n      shuffled[index - 1] = shuffled[rand];\n      shuffled[rand] = value;\n    });\n    return shuffled;\n  };\n\n  // Sample **n** random values from a collection.\n  // If **n** is not specified, returns a single random element.\n  // The internal `guard` argument allows it to work with `map`.\n  _.sample = function(obj, n, guard) {\n    if (n == null || guard) {\n      if (obj.length !== +obj.length) obj = _.values(obj);\n      return obj[_.random(obj.length - 1)];\n    }\n    return _.shuffle(obj).slice(0, Math.max(0, n));\n  };\n\n  // An internal function to generate lookup iterators.\n  var lookupIterator = function(value) {\n    if (value == null) return _.identity;\n    if (_.isFunction(value)) return value;\n    return _.property(value);\n  };\n\n  // Sort the object's values by a criterion produced by an iterator.\n  _.sortBy = function(obj, iterator, context) {\n    iterator = lookupIterator(iterator);\n    return _.pluck(_.map(obj, function(value, index, list) {\n      return {\n        value: value,\n        index: index,\n        criteria: iterator.call(context, value, index, list)\n      };\n    }).sort(function(left, right) {\n      var a = left.criteria;\n      var b = right.criteria;\n      if (a !== b) {\n        if (a > b || a === void 0) return 1;\n        if (a < b || b === void 0) return -1;\n      }\n      return left.index - right.index;\n    }), 'value');\n  };\n\n  // An internal function used for aggregate \"group by\" operations.\n  var group = function(behavior) {\n    return function(obj, iterator, context) {\n      var result = {};\n      iterator = lookupIterator(iterator);\n      each(obj, function(value, index) {\n        var key = iterator.call(context, value, index, obj);\n        behavior(result, key, value);\n      });\n      return result;\n    };\n  };\n\n  // Groups the object's values by a criterion. Pass either a string attribute\n  // to group by, or a function that returns the criterion.\n  _.groupBy = group(function(result, key, value) {\n    _.has(result, key) ? result[key].push(value) : result[key] = [value];\n  });\n\n  // Indexes the object's values by a criterion, similar to `groupBy`, but for\n  // when you know that your index values will be unique.\n  _.indexBy = group(function(result, key, value) {\n    result[key] = value;\n  });\n\n  // Counts instances of an object that group by a certain criterion. Pass\n  // either a string attribute to count by, or a function that returns the\n  // criterion.\n  _.countBy = group(function(result, key) {\n    _.has(result, key) ? result[key]++ : result[key] = 1;\n  });\n\n  // Use a comparator function to figure out the smallest index at which\n  // an object should be inserted so as to maintain order. Uses binary search.\n  _.sortedIndex = function(array, obj, iterator, context) {\n    iterator = lookupIterator(iterator);\n    var value = iterator.call(context, obj);\n    var low = 0, high = array.length;\n    while (low < high) {\n      var mid = (low + high) >>> 1;\n      iterator.call(context, array[mid]) < value ? low = mid + 1 : high = mid;\n    }\n    return low;\n  };\n\n  // Safely create a real, live array from anything iterable.\n  _.toArray = function(obj) {\n    if (!obj) return [];\n    if (_.isArray(obj)) return slice.call(obj);\n    if (obj.length === +obj.length) return _.map(obj, _.identity);\n    return _.values(obj);\n  };\n\n  // Return the number of elements in an object.\n  _.size = function(obj) {\n    if (obj == null) return 0;\n    return (obj.length === +obj.length) ? obj.length : _.keys(obj).length;\n  };\n\n  // Array Functions\n  // ---------------\n\n  // Get the first element of an array. Passing **n** will return the first N\n  // values in the array. Aliased as `head` and `take`. The **guard** check\n  // allows it to work with `_.map`.\n  _.first = _.head = _.take = function(array, n, guard) {\n    if (array == null) return void 0;\n    if ((n == null) || guard) return array[0];\n    if (n < 0) return [];\n    return slice.call(array, 0, n);\n  };\n\n  // Returns everything but the last entry of the array. Especially useful on\n  // the arguments object. Passing **n** will return all the values in\n  // the array, excluding the last N. The **guard** check allows it to work with\n  // `_.map`.\n  _.initial = function(array, n, guard) {\n    return slice.call(array, 0, array.length - ((n == null) || guard ? 1 : n));\n  };\n\n  // Get the last element of an array. Passing **n** will return the last N\n  // values in the array. The **guard** check allows it to work with `_.map`.\n  _.last = function(array, n, guard) {\n    if (array == null) return void 0;\n    if ((n == null) || guard) return array[array.length - 1];\n    return slice.call(array, Math.max(array.length - n, 0));\n  };\n\n  // Returns everything but the first entry of the array. Aliased as `tail` and `drop`.\n  // Especially useful on the arguments object. Passing an **n** will return\n  // the rest N values in the array. The **guard**\n  // check allows it to work with `_.map`.\n  _.rest = _.tail = _.drop = function(array, n, guard) {\n    return slice.call(array, (n == null) || guard ? 1 : n);\n  };\n\n  // Trim out all falsy values from an array.\n  _.compact = function(array) {\n    return _.filter(array, _.identity);\n  };\n\n  // Internal implementation of a recursive `flatten` function.\n  var flatten = function(input, shallow, output) {\n    if (shallow && _.every(input, _.isArray)) {\n      return concat.apply(output, input);\n    }\n    each(input, function(value) {\n      if (_.isArray(value) || _.isArguments(value)) {\n        shallow ? push.apply(output, value) : flatten(value, shallow, output);\n      } else {\n        output.push(value);\n      }\n    });\n    return output;\n  };\n\n  // Flatten out an array, either recursively (by default), or just one level.\n  _.flatten = function(array, shallow) {\n    return flatten(array, shallow, []);\n  };\n\n  // Return a version of the array that does not contain the specified value(s).\n  _.without = function(array) {\n    return _.difference(array, slice.call(arguments, 1));\n  };\n\n  // Split an array into two arrays: one whose elements all satisfy the given\n  // predicate, and one whose elements all do not satisfy the predicate.\n  _.partition = function(array, predicate) {\n    var pass = [], fail = [];\n    each(array, function(elem) {\n      (predicate(elem) ? pass : fail).push(elem);\n    });\n    return [pass, fail];\n  };\n\n  // Produce a duplicate-free version of the array. If the array has already\n  // been sorted, you have the option of using a faster algorithm.\n  // Aliased as `unique`.\n  _.uniq = _.unique = function(array, isSorted, iterator, context) {\n    if (_.isFunction(isSorted)) {\n      context = iterator;\n      iterator = isSorted;\n      isSorted = false;\n    }\n    var initial = iterator ? _.map(array, iterator, context) : array;\n    var results = [];\n    var seen = [];\n    each(initial, function(value, index) {\n      if (isSorted ? (!index || seen[seen.length - 1] !== value) : !_.contains(seen, value)) {\n        seen.push(value);\n        results.push(array[index]);\n      }\n    });\n    return results;\n  };\n\n  // Produce an array that contains the union: each distinct element from all of\n  // the passed-in arrays.\n  _.union = function() {\n    return _.uniq(_.flatten(arguments, true));\n  };\n\n  // Produce an array that contains every item shared between all the\n  // passed-in arrays.\n  _.intersection = function(array) {\n    var rest = slice.call(arguments, 1);\n    return _.filter(_.uniq(array), function(item) {\n      return _.every(rest, function(other) {\n        return _.contains(other, item);\n      });\n    });\n  };\n\n  // Take the difference between one array and a number of other arrays.\n  // Only the elements present in just the first array will remain.\n  _.difference = function(array) {\n    var rest = concat.apply(ArrayProto, slice.call(arguments, 1));\n    return _.filter(array, function(value){ return !_.contains(rest, value); });\n  };\n\n  // Zip together multiple lists into a single array -- elements that share\n  // an index go together.\n  _.zip = function() {\n    var length = _.max(_.pluck(arguments, 'length').concat(0));\n    var results = new Array(length);\n    for (var i = 0; i < length; i++) {\n      results[i] = _.pluck(arguments, '' + i);\n    }\n    return results;\n  };\n\n  // Converts lists into objects. Pass either a single array of `[key, value]`\n  // pairs, or two parallel arrays of the same length -- one of keys, and one of\n  // the corresponding values.\n  _.object = function(list, values) {\n    if (list == null) return {};\n    var result = {};\n    for (var i = 0, length = list.length; i < length; i++) {\n      if (values) {\n        result[list[i]] = values[i];\n      } else {\n        result[list[i][0]] = list[i][1];\n      }\n    }\n    return result;\n  };\n\n  // If the browser doesn't supply us with indexOf (I'm looking at you, **MSIE**),\n  // we need this function. Return the position of the first occurrence of an\n  // item in an array, or -1 if the item is not included in the array.\n  // Delegates to **ECMAScript 5**'s native `indexOf` if available.\n  // If the array is large and already in sort order, pass `true`\n  // for **isSorted** to use binary search.\n  _.indexOf = function(array, item, isSorted) {\n    if (array == null) return -1;\n    var i = 0, length = array.length;\n    if (isSorted) {\n      if (typeof isSorted == 'number') {\n        i = (isSorted < 0 ? Math.max(0, length + isSorted) : isSorted);\n      } else {\n        i = _.sortedIndex(array, item);\n        return array[i] === item ? i : -1;\n      }\n    }\n    if (nativeIndexOf && array.indexOf === nativeIndexOf) return array.indexOf(item, isSorted);\n    for (; i < length; i++) if (array[i] === item) return i;\n    return -1;\n  };\n\n  // Delegates to **ECMAScript 5**'s native `lastIndexOf` if available.\n  _.lastIndexOf = function(array, item, from) {\n    if (array == null) return -1;\n    var hasIndex = from != null;\n    if (nativeLastIndexOf && array.lastIndexOf === nativeLastIndexOf) {\n      return hasIndex ? array.lastIndexOf(item, from) : array.lastIndexOf(item);\n    }\n    var i = (hasIndex ? from : array.length);\n    while (i--) if (array[i] === item) return i;\n    return -1;\n  };\n\n  // Generate an integer Array containing an arithmetic progression. A port of\n  // the native Python `range()` function. See\n  // [the Python documentation](http://docs.python.org/library/functions.html#range).\n  _.range = function(start, stop, step) {\n    if (arguments.length <= 1) {\n      stop = start || 0;\n      start = 0;\n    }\n    step = arguments[2] || 1;\n\n    var length = Math.max(Math.ceil((stop - start) / step), 0);\n    var idx = 0;\n    var range = new Array(length);\n\n    while(idx < length) {\n      range[idx++] = start;\n      start += step;\n    }\n\n    return range;\n  };\n\n  // Function (ahem) Functions\n  // ------------------\n\n  // Reusable constructor function for prototype setting.\n  var ctor = function(){};\n\n  // Create a function bound to a given object (assigning `this`, and arguments,\n  // optionally). Delegates to **ECMAScript 5**'s native `Function.bind` if\n  // available.\n  _.bind = function(func, context) {\n    var args, bound;\n    if (nativeBind && func.bind === nativeBind) return nativeBind.apply(func, slice.call(arguments, 1));\n    if (!_.isFunction(func)) throw new TypeError;\n    args = slice.call(arguments, 2);\n    return bound = function() {\n      if (!(this instanceof bound)) return func.apply(context, args.concat(slice.call(arguments)));\n      ctor.prototype = func.prototype;\n      var self = new ctor;\n      ctor.prototype = null;\n      var result = func.apply(self, args.concat(slice.call(arguments)));\n      if (Object(result) === result) return result;\n      return self;\n    };\n  };\n\n  // Partially apply a function by creating a version that has had some of its\n  // arguments pre-filled, without changing its dynamic `this` context. _ acts\n  // as a placeholder, allowing any combination of arguments to be pre-filled.\n  _.partial = function(func) {\n    var boundArgs = slice.call(arguments, 1);\n    return function() {\n      var position = 0;\n      var args = boundArgs.slice();\n      for (var i = 0, length = args.length; i < length; i++) {\n        if (args[i] === _) args[i] = arguments[position++];\n      }\n      while (position < arguments.length) args.push(arguments[position++]);\n      return func.apply(this, args);\n    };\n  };\n\n  // Bind a number of an object's methods to that object. Remaining arguments\n  // are the method names to be bound. Useful for ensuring that all callbacks\n  // defined on an object belong to it.\n  _.bindAll = function(obj) {\n    var funcs = slice.call(arguments, 1);\n    if (funcs.length === 0) throw new Error('bindAll must be passed function names');\n    each(funcs, function(f) { obj[f] = _.bind(obj[f], obj); });\n    return obj;\n  };\n\n  // Memoize an expensive function by storing its results.\n  _.memoize = function(func, hasher) {\n    var memo = {};\n    hasher || (hasher = _.identity);\n    return function() {\n      var key = hasher.apply(this, arguments);\n      return _.has(memo, key) ? memo[key] : (memo[key] = func.apply(this, arguments));\n    };\n  };\n\n  // Delays a function for the given number of milliseconds, and then calls\n  // it with the arguments supplied.\n  _.delay = function(func, wait) {\n    var args = slice.call(arguments, 2);\n    return setTimeout(function(){ return func.apply(null, args); }, wait);\n  };\n\n  // Defers a function, scheduling it to run after the current call stack has\n  // cleared.\n  _.defer = function(func) {\n    return _.delay.apply(_, [func, 1].concat(slice.call(arguments, 1)));\n  };\n\n  // Returns a function, that, when invoked, will only be triggered at most once\n  // during a given window of time. Normally, the throttled function will run\n  // as much as it can, without ever going more than once per `wait` duration;\n  // but if you'd like to disable the execution on the leading edge, pass\n  // `{leading: false}`. To disable execution on the trailing edge, ditto.\n  _.throttle = function(func, wait, options) {\n    var context, args, result;\n    var timeout = null;\n    var previous = 0;\n    options || (options = {});\n    var later = function() {\n      previous = options.leading === false ? 0 : _.now();\n      timeout = null;\n      result = func.apply(context, args);\n      context = args = null;\n    };\n    return function() {\n      var now = _.now();\n      if (!previous && options.leading === false) previous = now;\n      var remaining = wait - (now - previous);\n      context = this;\n      args = arguments;\n      if (remaining <= 0) {\n        clearTimeout(timeout);\n        timeout = null;\n        previous = now;\n        result = func.apply(context, args);\n        context = args = null;\n      } else if (!timeout && options.trailing !== false) {\n        timeout = setTimeout(later, remaining);\n      }\n      return result;\n    };\n  };\n\n  // Returns a function, that, as long as it continues to be invoked, will not\n  // be triggered. The function will be called after it stops being called for\n  // N milliseconds. If `immediate` is passed, trigger the function on the\n  // leading edge, instead of the trailing.\n  _.debounce = function(func, wait, immediate) {\n    var timeout, args, context, timestamp, result;\n\n    var later = function() {\n      var last = _.now() - timestamp;\n      if (last < wait) {\n        timeout = setTimeout(later, wait - last);\n      } else {\n        timeout = null;\n        if (!immediate) {\n          result = func.apply(context, args);\n          context = args = null;\n        }\n      }\n    };\n\n    return function() {\n      context = this;\n      args = arguments;\n      timestamp = _.now();\n      var callNow = immediate && !timeout;\n      if (!timeout) {\n        timeout = setTimeout(later, wait);\n      }\n      if (callNow) {\n        result = func.apply(context, args);\n        context = args = null;\n      }\n\n      return result;\n    };\n  };\n\n  // Returns a function that will be executed at most one time, no matter how\n  // often you call it. Useful for lazy initialization.\n  _.once = function(func) {\n    var ran = false, memo;\n    return function() {\n      if (ran) return memo;\n      ran = true;\n      memo = func.apply(this, arguments);\n      func = null;\n      return memo;\n    };\n  };\n\n  // Returns the first function passed as an argument to the second,\n  // allowing you to adjust arguments, run code before and after, and\n  // conditionally execute the original function.\n  _.wrap = function(func, wrapper) {\n    return _.partial(wrapper, func);\n  };\n\n  // Returns a function that is the composition of a list of functions, each\n  // consuming the return value of the function that follows.\n  _.compose = function() {\n    var funcs = arguments;\n    return function() {\n      var args = arguments;\n      for (var i = funcs.length - 1; i >= 0; i--) {\n        args = [funcs[i].apply(this, args)];\n      }\n      return args[0];\n    };\n  };\n\n  // Returns a function that will only be executed after being called N times.\n  _.after = function(times, func) {\n    return function() {\n      if (--times < 1) {\n        return func.apply(this, arguments);\n      }\n    };\n  };\n\n  // Object Functions\n  // ----------------\n\n  // Retrieve the names of an object's properties.\n  // Delegates to **ECMAScript 5**'s native `Object.keys`\n  _.keys = function(obj) {\n    if (!_.isObject(obj)) return [];\n    if (nativeKeys) return nativeKeys(obj);\n    var keys = [];\n    for (var key in obj) if (_.has(obj, key)) keys.push(key);\n    return keys;\n  };\n\n  // Retrieve the values of an object's properties.\n  _.values = function(obj) {\n    var keys = _.keys(obj);\n    var length = keys.length;\n    var values = new Array(length);\n    for (var i = 0; i < length; i++) {\n      values[i] = obj[keys[i]];\n    }\n    return values;\n  };\n\n  // Convert an object into a list of `[key, value]` pairs.\n  _.pairs = function(obj) {\n    var keys = _.keys(obj);\n    var length = keys.length;\n    var pairs = new Array(length);\n    for (var i = 0; i < length; i++) {\n      pairs[i] = [keys[i], obj[keys[i]]];\n    }\n    return pairs;\n  };\n\n  // Invert the keys and values of an object. The values must be serializable.\n  _.invert = function(obj) {\n    var result = {};\n    var keys = _.keys(obj);\n    for (var i = 0, length = keys.length; i < length; i++) {\n      result[obj[keys[i]]] = keys[i];\n    }\n    return result;\n  };\n\n  // Return a sorted list of the function names available on the object.\n  // Aliased as `methods`\n  _.functions = _.methods = function(obj) {\n    var names = [];\n    for (var key in obj) {\n      if (_.isFunction(obj[key])) names.push(key);\n    }\n    return names.sort();\n  };\n\n  // Extend a given object with all the properties in passed-in object(s).\n  _.extend = function(obj) {\n    each(slice.call(arguments, 1), function(source) {\n      if (source) {\n        for (var prop in source) {\n          obj[prop] = source[prop];\n        }\n      }\n    });\n    return obj;\n  };\n\n  // Return a copy of the object only containing the whitelisted properties.\n  _.pick = function(obj) {\n    var copy = {};\n    var keys = concat.apply(ArrayProto, slice.call(arguments, 1));\n    each(keys, function(key) {\n      if (key in obj) copy[key] = obj[key];\n    });\n    return copy;\n  };\n\n   // Return a copy of the object without the blacklisted properties.\n  _.omit = function(obj) {\n    var copy = {};\n    var keys = concat.apply(ArrayProto, slice.call(arguments, 1));\n    for (var key in obj) {\n      if (!_.contains(keys, key)) copy[key] = obj[key];\n    }\n    return copy;\n  };\n\n  // Fill in a given object with default properties.\n  _.defaults = function(obj) {\n    each(slice.call(arguments, 1), function(source) {\n      if (source) {\n        for (var prop in source) {\n          if (obj[prop] === void 0) obj[prop] = source[prop];\n        }\n      }\n    });\n    return obj;\n  };\n\n  // Create a (shallow-cloned) duplicate of an object.\n  _.clone = function(obj) {\n    if (!_.isObject(obj)) return obj;\n    return _.isArray(obj) ? obj.slice() : _.extend({}, obj);\n  };\n\n  // Invokes interceptor with the obj, and then returns obj.\n  // The primary purpose of this method is to \"tap into\" a method chain, in\n  // order to perform operations on intermediate results within the chain.\n  _.tap = function(obj, interceptor) {\n    interceptor(obj);\n    return obj;\n  };\n\n  // Internal recursive comparison function for `isEqual`.\n  var eq = function(a, b, aStack, bStack) {\n    // Identical objects are equal. `0 === -0`, but they aren't identical.\n    // See the [Harmony `egal` proposal](http://wiki.ecmascript.org/doku.php?id=harmony:egal).\n    if (a === b) return a !== 0 || 1 / a == 1 / b;\n    // A strict comparison is necessary because `null == undefined`.\n    if (a == null || b == null) return a === b;\n    // Unwrap any wrapped objects.\n    if (a instanceof _) a = a._wrapped;\n    if (b instanceof _) b = b._wrapped;\n    // Compare `[[Class]]` names.\n    var className = toString.call(a);\n    if (className != toString.call(b)) return false;\n    switch (className) {\n      // Strings, numbers, dates, and booleans are compared by value.\n      case '[object String]':\n        // Primitives and their corresponding object wrappers are equivalent; thus, `\"5\"` is\n        // equivalent to `new String(\"5\")`.\n        return a == String(b);\n      case '[object Number]':\n        // `NaN`s are equivalent, but non-reflexive. An `egal` comparison is performed for\n        // other numeric values.\n        return a != +a ? b != +b : (a == 0 ? 1 / a == 1 / b : a == +b);\n      case '[object Date]':\n      case '[object Boolean]':\n        // Coerce dates and booleans to numeric primitive values. Dates are compared by their\n        // millisecond representations. Note that invalid dates with millisecond representations\n        // of `NaN` are not equivalent.\n        return +a == +b;\n      // RegExps are compared by their source patterns and flags.\n      case '[object RegExp]':\n        return a.source == b.source &&\n               a.global == b.global &&\n               a.multiline == b.multiline &&\n               a.ignoreCase == b.ignoreCase;\n    }\n    if (typeof a != 'object' || typeof b != 'object') return false;\n    // Assume equality for cyclic structures. The algorithm for detecting cyclic\n    // structures is adapted from ES 5.1 section 15.12.3, abstract operation `JO`.\n    var length = aStack.length;\n    while (length--) {\n      // Linear search. Performance is inversely proportional to the number of\n      // unique nested structures.\n      if (aStack[length] == a) return bStack[length] == b;\n    }\n    // Objects with different constructors are not equivalent, but `Object`s\n    // from different frames are.\n    var aCtor = a.constructor, bCtor = b.constructor;\n    if (aCtor !== bCtor && !(_.isFunction(aCtor) && (aCtor instanceof aCtor) &&\n                             _.isFunction(bCtor) && (bCtor instanceof bCtor))\n                        && ('constructor' in a && 'constructor' in b)) {\n      return false;\n    }\n    // Add the first object to the stack of traversed objects.\n    aStack.push(a);\n    bStack.push(b);\n    var size = 0, result = true;\n    // Recursively compare objects and arrays.\n    if (className == '[object Array]') {\n      // Compare array lengths to determine if a deep comparison is necessary.\n      size = a.length;\n      result = size == b.length;\n      if (result) {\n        // Deep compare the contents, ignoring non-numeric properties.\n        while (size--) {\n          if (!(result = eq(a[size], b[size], aStack, bStack))) break;\n        }\n      }\n    } else {\n      // Deep compare objects.\n      for (var key in a) {\n        if (_.has(a, key)) {\n          // Count the expected number of properties.\n          size++;\n          // Deep compare each member.\n          if (!(result = _.has(b, key) && eq(a[key], b[key], aStack, bStack))) break;\n        }\n      }\n      // Ensure that both objects contain the same number of properties.\n      if (result) {\n        for (key in b) {\n          if (_.has(b, key) && !(size--)) break;\n        }\n        result = !size;\n      }\n    }\n    // Remove the first object from the stack of traversed objects.\n    aStack.pop();\n    bStack.pop();\n    return result;\n  };\n\n  // Perform a deep comparison to check if two objects are equal.\n  _.isEqual = function(a, b) {\n    return eq(a, b, [], []);\n  };\n\n  // Is a given array, string, or object empty?\n  // An \"empty\" object has no enumerable own-properties.\n  _.isEmpty = function(obj) {\n    if (obj == null) return true;\n    if (_.isArray(obj) || _.isString(obj)) return obj.length === 0;\n    for (var key in obj) if (_.has(obj, key)) return false;\n    return true;\n  };\n\n  // Is a given value a DOM element?\n  _.isElement = function(obj) {\n    return !!(obj && obj.nodeType === 1);\n  };\n\n  // Is a given value an array?\n  // Delegates to ECMA5's native Array.isArray\n  _.isArray = nativeIsArray || function(obj) {\n    return toString.call(obj) == '[object Array]';\n  };\n\n  // Is a given variable an object?\n  _.isObject = function(obj) {\n    return obj === Object(obj);\n  };\n\n  // Add some isType methods: isArguments, isFunction, isString, isNumber, isDate, isRegExp.\n  each(['Arguments', 'Function', 'String', 'Number', 'Date', 'RegExp'], function(name) {\n    _['is' + name] = function(obj) {\n      return toString.call(obj) == '[object ' + name + ']';\n    };\n  });\n\n  // Define a fallback version of the method in browsers (ahem, IE), where\n  // there isn't any inspectable \"Arguments\" type.\n  if (!_.isArguments(arguments)) {\n    _.isArguments = function(obj) {\n      return !!(obj && _.has(obj, 'callee'));\n    };\n  }\n\n  // Optimize `isFunction` if appropriate.\n  if (typeof (/./) !== 'function') {\n    _.isFunction = function(obj) {\n      return typeof obj === 'function';\n    };\n  }\n\n  // Is a given object a finite number?\n  _.isFinite = function(obj) {\n    return isFinite(obj) && !isNaN(parseFloat(obj));\n  };\n\n  // Is the given value `NaN`? (NaN is the only number which does not equal itself).\n  _.isNaN = function(obj) {\n    return _.isNumber(obj) && obj != +obj;\n  };\n\n  // Is a given value a boolean?\n  _.isBoolean = function(obj) {\n    return obj === true || obj === false || toString.call(obj) == '[object Boolean]';\n  };\n\n  // Is a given value equal to null?\n  _.isNull = function(obj) {\n    return obj === null;\n  };\n\n  // Is a given variable undefined?\n  _.isUndefined = function(obj) {\n    return obj === void 0;\n  };\n\n  // Shortcut function for checking if an object has a given property directly\n  // on itself (in other words, not on a prototype).\n  _.has = function(obj, key) {\n    return hasOwnProperty.call(obj, key);\n  };\n\n  // Utility Functions\n  // -----------------\n\n  // Run Underscore.js in *noConflict* mode, returning the `_` variable to its\n  // previous owner. Returns a reference to the Underscore object.\n  _.noConflict = function() {\n    root._ = previousUnderscore;\n    return this;\n  };\n\n  // Keep the identity function around for default iterators.\n  _.identity = function(value) {\n    return value;\n  };\n\n  _.constant = function(value) {\n    return function () {\n      return value;\n    };\n  };\n\n  _.property = function(key) {\n    return function(obj) {\n      return obj[key];\n    };\n  };\n\n  // Returns a predicate for checking whether an object has a given set of `key:value` pairs.\n  _.matches = function(attrs) {\n    return function(obj) {\n      if (obj === attrs) return true; //avoid comparing an object to itself.\n      for (var key in attrs) {\n        if (attrs[key] !== obj[key])\n          return false;\n      }\n      return true;\n    }\n  };\n\n  // Run a function **n** times.\n  _.times = function(n, iterator, context) {\n    var accum = Array(Math.max(0, n));\n    for (var i = 0; i < n; i++) accum[i] = iterator.call(context, i);\n    return accum;\n  };\n\n  // Return a random integer between min and max (inclusive).\n  _.random = function(min, max) {\n    if (max == null) {\n      max = min;\n      min = 0;\n    }\n    return min + Math.floor(Math.random() * (max - min + 1));\n  };\n\n  // A (possibly faster) way to get the current timestamp as an integer.\n  _.now = Date.now || function() { return new Date().getTime(); };\n\n  // List of HTML entities for escaping.\n  var entityMap = {\n    escape: {\n      '&': '&amp;',\n      '<': '&lt;',\n      '>': '&gt;',\n      '\"': '&quot;',\n      \"'\": '&#x27;'\n    }\n  };\n  entityMap.unescape = _.invert(entityMap.escape);\n\n  // Regexes containing the keys and values listed immediately above.\n  var entityRegexes = {\n    escape:   new RegExp('[' + _.keys(entityMap.escape).join('') + ']', 'g'),\n    unescape: new RegExp('(' + _.keys(entityMap.unescape).join('|') + ')', 'g')\n  };\n\n  // Functions for escaping and unescaping strings to/from HTML interpolation.\n  _.each(['escape', 'unescape'], function(method) {\n    _[method] = function(string) {\n      if (string == null) return '';\n      return ('' + string).replace(entityRegexes[method], function(match) {\n        return entityMap[method][match];\n      });\n    };\n  });\n\n  // If the value of the named `property` is a function then invoke it with the\n  // `object` as context; otherwise, return it.\n  _.result = function(object, property) {\n    if (object == null) return void 0;\n    var value = object[property];\n    return _.isFunction(value) ? value.call(object) : value;\n  };\n\n  // Add your own custom functions to the Underscore object.\n  _.mixin = function(obj) {\n    each(_.functions(obj), function(name) {\n      var func = _[name] = obj[name];\n      _.prototype[name] = function() {\n        var args = [this._wrapped];\n        push.apply(args, arguments);\n        return result.call(this, func.apply(_, args));\n      };\n    });\n  };\n\n  // Generate a unique integer id (unique within the entire client session).\n  // Useful for temporary DOM ids.\n  var idCounter = 0;\n  _.uniqueId = function(prefix) {\n    var id = ++idCounter + '';\n    return prefix ? prefix + id : id;\n  };\n\n  // By default, Underscore uses ERB-style template delimiters, change the\n  // following template settings to use alternative delimiters.\n  _.templateSettings = {\n    evaluate    : /<%([\\s\\S]+?)%>/g,\n    interpolate : /<%=([\\s\\S]+?)%>/g,\n    escape      : /<%-([\\s\\S]+?)%>/g\n  };\n\n  // When customizing `templateSettings`, if you don't want to define an\n  // interpolation, evaluation or escaping regex, we need one that is\n  // guaranteed not to match.\n  var noMatch = /(.)^/;\n\n  // Certain characters need to be escaped so that they can be put into a\n  // string literal.\n  var escapes = {\n    \"'\":      \"'\",\n    '\\\\':     '\\\\',\n    '\\r':     'r',\n    '\\n':     'n',\n    '\\t':     't',\n    '\\u2028': 'u2028',\n    '\\u2029': 'u2029'\n  };\n\n  var escaper = /\\\\|'|\\r|\\n|\\t|\\u2028|\\u2029/g;\n\n  // JavaScript micro-templating, similar to John Resig's implementation.\n  // Underscore templating handles arbitrary delimiters, preserves whitespace,\n  // and correctly escapes quotes within interpolated code.\n  _.template = function(text, data, settings) {\n    var render;\n    settings = _.defaults({}, settings, _.templateSettings);\n\n    // Combine delimiters into one regular expression via alternation.\n    var matcher = new RegExp([\n      (settings.escape || noMatch).source,\n      (settings.interpolate || noMatch).source,\n      (settings.evaluate || noMatch).source\n    ].join('|') + '|$', 'g');\n\n    // Compile the template source, escaping string literals appropriately.\n    var index = 0;\n    var source = \"__p+='\";\n    text.replace(matcher, function(match, escape, interpolate, evaluate, offset) {\n      source += text.slice(index, offset)\n        .replace(escaper, function(match) { return '\\\\' + escapes[match]; });\n\n      if (escape) {\n        source += \"'+\\n((__t=(\" + escape + \"))==null?'':_.escape(__t))+\\n'\";\n      }\n      if (interpolate) {\n        source += \"'+\\n((__t=(\" + interpolate + \"))==null?'':__t)+\\n'\";\n      }\n      if (evaluate) {\n        source += \"';\\n\" + evaluate + \"\\n__p+='\";\n      }\n      index = offset + match.length;\n      return match;\n    });\n    source += \"';\\n\";\n\n    // If a variable is not specified, place data values in local scope.\n    if (!settings.variable) source = 'with(obj||{}){\\n' + source + '}\\n';\n\n    source = \"var __t,__p='',__j=Array.prototype.join,\" +\n      \"print=function(){__p+=__j.call(arguments,'');};\\n\" +\n      source + \"return __p;\\n\";\n\n    try {\n      render = new Function(settings.variable || 'obj', '_', source);\n    } catch (e) {\n      e.source = source;\n      throw e;\n    }\n\n    if (data) return render(data, _);\n    var template = function(data) {\n      return render.call(this, data, _);\n    };\n\n    // Provide the compiled function source as a convenience for precompilation.\n    template.source = 'function(' + (settings.variable || 'obj') + '){\\n' + source + '}';\n\n    return template;\n  };\n\n  // Add a \"chain\" function, which will delegate to the wrapper.\n  _.chain = function(obj) {\n    return _(obj).chain();\n  };\n\n  // OOP\n  // ---------------\n  // If Underscore is called as a function, it returns a wrapped object that\n  // can be used OO-style. This wrapper holds altered versions of all the\n  // underscore functions. Wrapped objects may be chained.\n\n  // Helper function to continue chaining intermediate results.\n  var result = function(obj) {\n    return this._chain ? _(obj).chain() : obj;\n  };\n\n  // Add all of the Underscore functions to the wrapper object.\n  _.mixin(_);\n\n  // Add all mutator Array functions to the wrapper.\n  each(['pop', 'push', 'reverse', 'shift', 'sort', 'splice', 'unshift'], function(name) {\n    var method = ArrayProto[name];\n    _.prototype[name] = function() {\n      var obj = this._wrapped;\n      method.apply(obj, arguments);\n      if ((name == 'shift' || name == 'splice') && obj.length === 0) delete obj[0];\n      return result.call(this, obj);\n    };\n  });\n\n  // Add all accessor Array functions to the wrapper.\n  each(['concat', 'join', 'slice'], function(name) {\n    var method = ArrayProto[name];\n    _.prototype[name] = function() {\n      return result.call(this, method.apply(this._wrapped, arguments));\n    };\n  });\n\n  _.extend(_.prototype, {\n\n    // Start chaining a wrapped Underscore object.\n    chain: function() {\n      this._chain = true;\n      return this;\n    },\n\n    // Extracts the result from a wrapped and chained object.\n    value: function() {\n      return this._wrapped;\n    }\n\n  });\n\n  // AMD registration happens at the end for compatibility with AMD loaders\n  // that may not enforce next-turn semantics on modules. Even though general\n  // practice for AMD registration is to be anonymous, underscore registers\n  // as a named module because, like jQuery, it is a base library that is\n  // popular enough to be bundled in a third party lib, but not be part of\n  // an AMD load request. 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* @param {string} msg Error message\n   * @returns {void}\n   */\n  errored(msg) {\n    this.logs.push(msg);\n  }\n\n  /**\n   * Check that the given structure is available.\n   * @param {Object} doc Object loaded from Yaml file\n   * @param {Object} structure Structure requirements\n   * @param {string} parent Address in a dot notation\n   * @returns {Array} List of not found structure paths\n   */\n  validateStructure(doc, structure, parent) {\n    let notFound = [],\n      current = '',\n      notValid; // false or path\n\n    parent = parent || '';\n\n    Object.keys(structure).forEach((originKey) => {\n      const optional = originKey.endsWith('?');\n      const key = originKey.replace(/\\?$/u, '');\n\n      current = parent;\n      if (!check(structure).is('Array')) {\n        current += (parent.length > 0 ?\n          '.' :\n          '') + key;\n      }\n\n      const item = structure[originKey];\n      if (item instanceof Array) {\n        if (check(doc).has(key) && check(doc[key]).is('Array')) {\n          doc[key].forEach((child, index) => {\n            if (item.length > 1) {\n              notValid = this.validateStructure([child], [item[index]], current + '[' + index + ']');\n            }\n            else {\n              notValid = this.validateStructure([child], item, current + '[' + index + ']');\n            }\n            notFound = notFound.concat(notValid);\n          });\n        }\n        else if (!optional) {\n          notFound.push(current);\n        }\n      }\n      else if (typeof item === 'string') {\n        if (!check(doc).has(key) && optional){\n          notValid = false;\n        }\n        else {\n          notValid = !((check(structure).is('Array') || check(doc).has(key)) && check(doc[key]).is(item));\n        }\n\n        // Key can be a index number when the structure is an array, but passed as a string\n        notFound.push(notValid ?\n          current :\n          false);\n      }\n      else if (typeof item === 'object' && item !== null) {\n        if (!optional) {\n          notValid = this.validateStructure(doc[key], item, current);\n          notFound = notFound.concat(notValid);\n        }\n      }\n    });\n\n    return notFound.filter(function filterFalse(item) {\n      return item !== false;\n    });\n  }\n\n  /**\n   * Parse the given Yaml data.\n   * @param {string} filepath Yaml file path\n   * @param {string} data Yaml data\n   * @returns {string|null} Parsed Yaml or null on failure\n   */\n  loadData(filepath, data) {\n    const onWarning = (error) => {\n      this.errored(filepath + ' > ' + error);\n      if (typeof this.options.onWarning === 'function') {\n        this.options.onWarning.call(this, error, filepath);\n      }\n    };\n    let doc;\n\n    try {\n      doc = yaml.load(data, {\n        onWarning: onWarning\n      });\n    }\n    catch (error) {\n      const findNumber = error.message.match(FIND_LINENUMBER);\n      const lineNumber = findNumber && findNumber.length > 0 ?\n        findNumber[1] :\n        'unknown';\n      this.errored(`Failed to load the Yaml file \"${filepath}:${lineNumber}\"\\n${error.message}`);\n      console.error(`${filepath}:${lineNumber}\\n${error.message}`);\n\n      return null;\n    }\n\n    return doc;\n  }\n\n  /**\n   * Read and parse the given Yaml file.\n   * @param {string} filepath Yaml file path\n   * @returns {string|null} Parsed Yaml or null on failure\n   */\n  loadFile(filepath) {\n    // Verbose output will tell which file is being read\n    let data;\n    const _self = this;\n\n    try {\n      data = fs.readFileSync(filepath, 'utf8');\n    }\n    catch (err) {\n      _self.errored(filepath + ' > No such file or directory');\n\n      return null;\n    }\n\n    return this.loadData(filepath, data);\n  }\n\n  /**\n   * Read the given Yaml file, load and check its structure.\n   * @param {string} filepath Yaml file path\n   * @returns {number} 0 when no errors, 1 when errors.\n   */\n  checkFile(filepath) {\n    const doc = this.loadFile(filepath);\n\n    if (!doc) {\n      return 1;\n    }\n\n    if (this.options.writeJson) {\n      const json = JSON.stringify(doc, null, '  ');\n      fs.writeFileSync(filepath.replace(/\\.y(a)?ml$/iu, '.json'), json, 'utf8');\n    }\n\n    if (this.options.structure) {\n      const nonValidPaths = this.validateStructure(doc, this.options.structure);\n\n      if (nonValidPaths.length > 0) {\n        this.errored(filepath + ' is not following the correct structure, missing:');\n        this.errored(nonValidPaths.join('\\n'));\n        this.nonValidPaths = this.nonValidPaths.concat(nonValidPaths);\n\n        return 1;\n      }\n    }\n\n    return 0;\n  }\n\n  /**\n   * Create a report out of this, but in reality also run.\n   * @param {array} files List of files that have been checked that they exist\n   * @returns {void}\n   */\n  validate(files) {\n    const _self = this;\n    this.inValidFilesCount = files.map((filepath) => {\n      return _self.checkFile(filepath);\n    }).reduce((prev, curr) => {\n      return prev + curr;\n    }, _self.inValidFilesCount);\n  }\n\n  /**\n   * Create a report out of this, but in reality also run.\n   * @returns {number} 0 when no errors, the count of invalid files otherwise.\n   */\n  report() {\n\n    if (this.inValidFilesCount > 0) {\n      this.errored('Yaml format related errors in ' + this.inValidFilesCount + ' files');\n    }\n\n    const len = this.nonValidPaths.length;\n    this.errored('Total of ' + len + ' structure validation error(s)');\n\n    if (typeof this.options.log === 'string') {\n      fs.writeFileSync(this.options.log, this.logs.join('\\n'), 'utf8');\n    }\n\n    return this.inValidFilesCount;\n  }\n}\n\nmodule.exports = YamlValidatore;\n","module.exports = require(\"assert\");","module.exports = require(\"events\");","module.exports = require(\"fs\");","module.exports = require(\"http\");","module.exports = require(\"https\");","module.exports = 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