!function(e){if("object"==typeof exports&&"undefined"!=typeof module)module.exports=e();else if("function"==typeof define&&define.amd)define([],e);else{("undefined"!=typeof window?window:"undefined"!=typeof global?global:"undefined"!=typeof self?self:this).fastCsv=e()}}(function(){return function(){return function e(t,r,n){function i(s,a){if(!r[s]){if(!t[s]){var u="function"==typeof require&&require;if(!a&&u)return u(s,!0);if(o)return o(s,!0);var f=new Error("Cannot find module '"+s+"'");throw f.code="MODULE_NOT_FOUND",f}var l=r[s]={exports:{}};t[s][0].call(l.exports,function(e){return i(t[s][1][e]||e)},l,l.exports,e,t,r,n)}return r[s].exports}for(var o="function"==typeof require&&require,s=0;se?(i=!0,n(e)):(r&&r.forEach(e=>{this.push(t.from(e,"utf8"))}),i=!0,n()))}catch(e){if(i)throw e;n(e)}}_flush(e){this.rowFormatter.finish((r,n)=>r?e(r):(n&&n.forEach(e=>{this.push(t.from(e,"utf8"))}),e()))}}}).call(this,e("buffer").Buffer)},{"./formatter":6,buffer:37,stream:62}],3:[function(e,t,r){"use strict";Object.defineProperty(r,"__esModule",{value:!0}),r.FormatterOptions=void 0;r.FormatterOptions=class{constructor(e={}){var t;this.objectMode=!0,this.delimiter=",",this.rowDelimiter="\n",this.quote='"',this.escape=this.quote,this.quoteColumns=!1,this.quoteHeaders=this.quoteColumns,this.headers=null,this.includeEndRowDelimiter=!1,this.writeBOM=!1,this.BOM="\ufeff",this.alwaysWriteHeaders=!1,Object.assign(this,e||{}),void 0===(null==e?void 0:e.quoteHeaders)&&(this.quoteHeaders=this.quoteColumns),!0===(null==e?void 0:e.quote)?this.quote='"':!1===(null==e?void 0:e.quote)&&(this.quote=""),"string"!=typeof(null==e?void 0:e.escape)&&(this.escape=this.quote),this.shouldWriteHeaders=!!this.headers&&(null===(t=e.writeHeaders)||void 0===t||t),this.headers=Array.isArray(this.headers)?this.headers:null,this.escapedQuote=`${this.escape}${this.quote}`}}},{}],4:[function(e,t,r){"use strict";var n=this&&this.__importDefault||function(e){return e&&e.__esModule?e:{default:e}};Object.defineProperty(r,"__esModule",{value:!0}),r.FieldFormatter=void 0;const i=n(e("lodash.isboolean")),o=n(e("lodash.isnil")),s=n(e("lodash.escaperegexp"));r.FieldFormatter=class{constructor(e){this._headers=null,this.formatterOptions=e,null!==e.headers&&(this.headers=e.headers),this.REPLACE_REGEXP=new RegExp(e.quote,"g");const t=`[${e.delimiter}${s.default(e.rowDelimiter)}|\r|\n]`;this.ESCAPE_REGEXP=new RegExp(t)}set headers(e){this._headers=e}shouldQuote(e,t){const r=t?this.formatterOptions.quoteHeaders:this.formatterOptions.quoteColumns;return i.default(r)?r:Array.isArray(r)?r[e]:null!==this._headers&&r[this._headers[e]]}format(e,t,r){const n=`${o.default(e)?"":e}`.replace(/\0/g,""),{formatterOptions:i}=this;return""!==i.quote&&-1!==n.indexOf(i.quote)?this.quoteField(n.replace(this.REPLACE_REGEXP,i.escapedQuote)):-1!==n.search(this.ESCAPE_REGEXP)||this.shouldQuote(t,r)?this.quoteField(n):n}quoteField(e){const{quote:t}=this.formatterOptions;return`${t}${e}${t}`}}},{"lodash.escaperegexp":26,"lodash.isboolean":28,"lodash.isnil":31}],5:[function(e,t,r){"use strict";var n=this&&this.__importDefault||function(e){return e&&e.__esModule?e:{default:e}};Object.defineProperty(r,"__esModule",{value:!0}),r.RowFormatter=void 0;const i=n(e("lodash.isfunction")),o=n(e("lodash.isequal")),s=e("./FieldFormatter"),a=e("../types");class u{constructor(e){this.rowCount=0,this.formatterOptions=e,this.fieldFormatter=new s.FieldFormatter(e),this.headers=e.headers,this.shouldWriteHeaders=e.shouldWriteHeaders,this.hasWrittenHeaders=!1,null!==this.headers&&(this.fieldFormatter.headers=this.headers),e.transform&&(this.rowTransform=e.transform)}static isRowHashArray(e){return!!Array.isArray(e)&&(Array.isArray(e[0])&&2===e[0].length)}static isRowArray(e){return Array.isArray(e)&&!this.isRowHashArray(e)}static gatherHeaders(e){return u.isRowHashArray(e)?e.map(e=>e[0]):Array.isArray(e)?e:Object.keys(e)}static createTransform(e){return a.isSyncTransform(e)?(t,r)=>{let n=null;try{n=e(t)}catch(e){return r(e)}return r(null,n)}:(t,r)=>{e(t,r)}}set rowTransform(e){if(!i.default(e))throw new TypeError("The transform should be a function");this._rowTransform=u.createTransform(e)}format(e,t){this.callTransformer(e,(r,n)=>{if(r)return t(r);if(!e)return t(null);const i=[];if(n){const{shouldFormatColumns:e,headers:t}=this.checkHeaders(n);if(this.shouldWriteHeaders&&t&&!this.hasWrittenHeaders&&(i.push(this.formatColumns(t,!0)),this.hasWrittenHeaders=!0),e){const e=this.gatherColumns(n);i.push(this.formatColumns(e,!1))}}return t(null,i)})}finish(e){const t=[];if(this.formatterOptions.alwaysWriteHeaders&&0===this.rowCount){if(!this.headers)return e(new Error("`alwaysWriteHeaders` option is set to true but `headers` option not provided."));t.push(this.formatColumns(this.headers,!0))}return this.formatterOptions.includeEndRowDelimiter&&t.push(this.formatterOptions.rowDelimiter),e(null,t)}checkHeaders(e){if(this.headers)return{shouldFormatColumns:!0,headers:this.headers};const t=u.gatherHeaders(e);return this.headers=t,this.fieldFormatter.headers=t,this.shouldWriteHeaders?{shouldFormatColumns:!o.default(t,e),headers:t}:{shouldFormatColumns:!0,headers:null}}gatherColumns(e){if(null===this.headers)throw new Error("Headers is currently null");return Array.isArray(e)?u.isRowHashArray(e)?this.headers.map((t,r)=>{const n=e[r];return n?n[1]:""}):u.isRowArray(e)&&!this.shouldWriteHeaders?e:this.headers.map((t,r)=>e[r]):this.headers.map(t=>e[t])}callTransformer(e,t){return this._rowTransform?this._rowTransform(e,t):t(null,e)}formatColumns(e,t){const r=e.map((e,r)=>this.fieldFormatter.format(e,r,t)).join(this.formatterOptions.delimiter),{rowCount:n}=this;return this.rowCount+=1,n?[this.formatterOptions.rowDelimiter,r].join(""):r}}r.RowFormatter=u},{"../types":8,"./FieldFormatter":4,"lodash.isequal":29,"lodash.isfunction":30}],6:[function(e,t,r){"use strict";Object.defineProperty(r,"__esModule",{value:!0}),r.FieldFormatter=r.RowFormatter=void 0;var n=e("./RowFormatter");Object.defineProperty(r,"RowFormatter",{enumerable:!0,get:function(){return n.RowFormatter}});var i=e("./FieldFormatter");Object.defineProperty(r,"FieldFormatter",{enumerable:!0,get:function(){return i.FieldFormatter}})},{"./FieldFormatter":4,"./RowFormatter":5}],7:[function(e,t,r){(function(t){"use strict";var n=this&&this.__createBinding||(Object.create?function(e,t,r,n){void 0===n&&(n=r),Object.defineProperty(e,n,{enumerable:!0,get:function(){return t[r]}})}:function(e,t,r,n){void 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d=e("./FormatterOptions");Object.defineProperty(r,"FormatterOptions",{enumerable:!0,get:function(){return d.FormatterOptions}}),r.format=(e=>new c.CsvFormatterStream(new l.FormatterOptions(e))),r.write=((e,t)=>{const n=r.format(t),i=a.promisify((e,t)=>{n.write(e,void 0,t)});return e.reduce((e,t)=>e.then(()=>i(t)),Promise.resolve()).then(()=>n.end()).catch(e=>{n.emit("error",e)}),n}),r.writeToStream=((e,t,n)=>r.write(t,n).pipe(e)),r.writeToBuffer=((e,n={})=>{const i=[],o=new u.Writable({write(e,t,r){i.push(e),r()}});return new Promise((s,a)=>{o.on("error",a).on("finish",()=>s(t.concat(i))),r.write(e,n).pipe(o)})}),r.writeToString=((e,t)=>r.writeToBuffer(e,t).then(e=>e.toString())),r.writeToPath=((e,t,n)=>{const i=f.createWriteStream(e,{encoding:"utf8"});return r.write(t,n).pipe(i)})}).call(this,e("buffer").Buffer)},{"./CsvFormatterStream":2,"./FormatterOptions":3,"./types":8,buffer:37,fs:36,stream:62,util:68}],8:[function(e,t,r){"use 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this.rowTransformerValidator.rowTransform=e,this}validate(e){return this.rowTransformerValidator.rowValidator=e,this}emit(e,...t){return"end"===e?(this.endEmitted||(this.endEmitted=!0,super.emit("end",this.rowCount)),!1):super.emit(e,...t)}_transform(e,t,r){if(this.hasHitRowLimit)return r();const n=a.wrapDoneCallback(r);try{const{lines:t}=this,r=t+this.decoder.write(e),i=this.parse(r,!0);return this.processRows(i,n)}catch(e){return n(e)}}_flush(e){const t=a.wrapDoneCallback(e);if(this.hasHitRowLimit)return t();try{const e=this.lines+this.decoder.end(),r=this.parse(e,!1);return this.processRows(r,t)}catch(e){return t(e)}}parse(e,t){if(!e)return[];const{line:r,rows:n}=this.parser.parse(e,t);return this.lines=r,n}processRows(e,r){const n=e.length,i=o=>{const s=e=>e?r(e):o%100!=0?i(o+1):void t(()=>i(o+1));if(this.checkAndEmitHeaders(),o>=n||this.hasHitRowLimit)return r();if(this.parsedLineCount+=1,this.shouldSkipLine)return s();const a=e[o];this.rowCount+=1,this.parsedRowCount+=1;const u=this.rowCount;return this.transformRow(a,(e,t)=>{if(e)return this.rowCount-=1,s(e);if(!t)return s(new Error("expected transform result"));if(t.isValid){if(t.row)return this.pushRow(t.row,s)}else this.emit("data-invalid",t.row,u,t.reason);return s()})};i(0)}transformRow(e,t){try{this.headerTransformer.transform(e,(r,n)=>r?t(r):n?n.isValid?n.row?this.shouldEmitRows?this.rowTransformerValidator.transformAndValidate(n.row,t):this.skipRow(t):(this.rowCount-=1,this.parsedRowCount-=1,t(null,{row:null,isValid:!0})):this.shouldEmitRows?t(null,{isValid:!1,row:e}):this.skipRow(t):t(new Error("Expected result from header transform")))}catch(e){t(e)}}checkAndEmitHeaders(){!this.headersEmitted&&this.headerTransformer.headers&&(this.headersEmitted=!0,this.emit("headers",this.headerTransformer.headers))}skipRow(e){return this.rowCount-=1,e(null,{row:null,isValid:!0})}pushRow(e,t){try{this.parserOptions.objectMode?this.push(e):this.push(JSON.stringify(e)),t()}catch(e){t(e)}}static wrapDoneCallback(e){let t=!1;return(r,...n)=>{if(r){if(t)throw r;return t=!0,void e(r)}e(...n)}}}r.CsvParserStream=a}).call(this,e("timers").setImmediate)},{"./parser":21,"./transforms":24,stream:62,string_decoder:63,timers:64}],10:[function(e,t,r){"use strict";var n=this&&this.__importDefault||function(e){return e&&e.__esModule?e:{default:e}};Object.defineProperty(r,"__esModule",{value:!0}),r.ParserOptions=void 0;const i=n(e("lodash.escaperegexp")),o=n(e("lodash.isnil"));r.ParserOptions=class{constructor(e){var t;if(this.objectMode=!0,this.delimiter=",",this.ignoreEmpty=!1,this.quote='"',this.escape=null,this.escapeChar=this.quote,this.comment=null,this.supportsComments=!1,this.ltrim=!1,this.rtrim=!1,this.trim=!1,this.headers=null,this.renameHeaders=!1,this.strictColumnHandling=!1,this.discardUnmappedColumns=!1,this.carriageReturn="\r",this.encoding="utf8",this.limitRows=!1,this.maxRows=0,this.skipLines=0,this.skipRows=0,Object.assign(this,e||{}),this.delimiter.length>1)throw new Error("delimiter option must be one character long");this.escapedDelimiter=i.default(this.delimiter),this.escapeChar=null!==(t=this.escape)&&void 0!==t?t:this.quote,this.supportsComments=!o.default(this.comment),this.NEXT_TOKEN_REGEXP=new RegExp(`([^\\s]|\\r\\n|\\n|\\r|${this.escapedDelimiter})`),this.maxRows>0&&(this.limitRows=!0)}}},{"lodash.escaperegexp":26,"lodash.isnil":31}],11:[function(e,t,r){"use strict";var n=this&&this.__createBinding||(Object.create?function(e,t,r,n){void 0===n&&(n=r),Object.defineProperty(e,n,{enumerable:!0,get:function(){return t[r]}})}:function(e,t,r,n){void 0===n&&(n=r),e[n]=t[r]}),i=this&&this.__setModuleDefault||(Object.create?function(e,t){Object.defineProperty(e,"default",{enumerable:!0,value:t})}:function(e,t){e.default=t}),o=this&&this.__importStar||function(e){if(e&&e.__esModule)return e;var t={};if(null!=e)for(var r in e)"default"!==r&&Object.prototype.hasOwnProperty.call(e,r)&&n(t,e,r);return i(t,e),t},s=this&&this.__exportStar||function(e,t){for(var r in e)"default"===r||Object.prototype.hasOwnProperty.call(t,r)||n(t,e,r)};Object.defineProperty(r,"__esModule",{value:!0}),r.parseString=r.parseFile=r.parseStream=r.parse=r.ParserOptions=r.CsvParserStream=void 0;const a=o(e("fs")),u=e("stream"),f=e("./ParserOptions"),l=e("./CsvParserStream");s(e("./types"),r);var c=e("./CsvParserStream");Object.defineProperty(r,"CsvParserStream",{enumerable:!0,get:function(){return c.CsvParserStream}});var h=e("./ParserOptions");Object.defineProperty(r,"ParserOptions",{enumerable:!0,get:function(){return h.ParserOptions}}),r.parse=(e=>new l.CsvParserStream(new f.ParserOptions(e))),r.parseStream=((e,t)=>e.pipe(new l.CsvParserStream(new f.ParserOptions(t)))),r.parseFile=((e,t={})=>a.createReadStream(e).pipe(new l.CsvParserStream(new f.ParserOptions(t)))),r.parseString=((e,t)=>{const r=new u.Readable;return r.push(e),r.push(null),r.pipe(new l.CsvParserStream(new f.ParserOptions(t)))})},{"./CsvParserStream":9,"./ParserOptions":10,"./types":25,fs:36,stream:62}],12:[function(e,t,r){"use strict";Object.defineProperty(r,"__esModule",{value:!0}),r.Parser=void 0;const n=e("./Scanner"),i=e("./RowParser"),o=e("./Token");class s{constructor(e){this.parserOptions=e,this.rowParser=new i.RowParser(this.parserOptions)}static removeBOM(e){return e&&65279===e.charCodeAt(0)?e.slice(1):e}parse(e,t){const r=new n.Scanner({line:s.removeBOM(e),parserOptions:this.parserOptions,hasMoreData:t});return this.parserOptions.supportsComments?this.parseWithComments(r):this.parseWithoutComments(r)}parseWithoutComments(e){const t=[];let r=!0;for(;r;)r=this.parseRow(e,t);return{line:e.line,rows:t}}parseWithComments(e){const{parserOptions:t}=this,r=[];for(let n=e.nextCharacterToken;null!==n;n=e.nextCharacterToken)if(o.Token.isTokenComment(n,t)){if(null===e.advancePastLine())return{line:e.lineFromCursor,rows:r};if(!e.hasMoreCharacters)return{line:e.lineFromCursor,rows:r};e.truncateToCursor()}else if(!this.parseRow(e,r))break;return{line:e.line,rows:r}}parseRow(e,t){if(!e.nextNonSpaceToken)return!1;const r=this.rowParser.parse(e);return null!==r&&(!(!this.parserOptions.ignoreEmpty||!i.RowParser.isEmptyRow(r))||(t.push(r),!0))}}r.Parser=s},{"./RowParser":13,"./Scanner":14,"./Token":15}],13:[function(e,t,r){"use strict";Object.defineProperty(r,"__esModule",{value:!0}),r.RowParser=void 0;const n=e("./column"),i=e("./Token"),o="";r.RowParser=class{constructor(e){this.parserOptions=e,this.columnParser=new n.ColumnParser(e)}static isEmptyRow(e){return e.join(o).replace(/\s+/g,o)===o}parse(e){const{parserOptions:t}=this,{hasMoreData:r}=e,n=e,o=[];let s=this.getStartToken(n,o);for(;s;){if(i.Token.isTokenRowDelimiter(s))return n.advancePastToken(s),!n.hasMoreCharacters&&i.Token.isTokenCarriageReturn(s,t)&&r?null:(n.truncateToCursor(),o);if(!this.shouldSkipColumnParse(n,s,o)){const e=this.columnParser.parse(n);if(null===e)return null;o.push(e)}s=n.nextNonSpaceToken}return r?null:(n.truncateToCursor(),o)}getStartToken(e,t){const r=e.nextNonSpaceToken;return null!==r&&i.Token.isTokenDelimiter(r,this.parserOptions)?(t.push(""),e.nextNonSpaceToken):r}shouldSkipColumnParse(e,t,r){const{parserOptions:n}=this;if(i.Token.isTokenDelimiter(t,n)){e.advancePastToken(t);const o=e.nextCharacterToken;if(!e.hasMoreCharacters||null!==o&&i.Token.isTokenRowDelimiter(o))return r.push(""),!0;if(null!==o&&i.Token.isTokenDelimiter(o,n))return r.push(""),!0}return!1}}},{"./Token":15,"./column":20}],14:[function(e,t,r){"use strict";Object.defineProperty(r,"__esModule",{value:!0}),r.Scanner=void 0;const n=e("./Token"),i=/((?:\r\n)|\n|\r)/;r.Scanner=class{constructor(e){this.cursor=0,this.line=e.line,this.lineLength=this.line.length,this.parserOptions=e.parserOptions,this.hasMoreData=e.hasMoreData,this.cursor=e.cursor||0}get hasMoreCharacters(){return this.lineLength>this.cursor}get nextNonSpaceToken(){const{lineFromCursor:e}=this,t=this.parserOptions.NEXT_TOKEN_REGEXP;if(-1===e.search(t))return null;const r=t.exec(e);if(null==r)return null;const i=r[1],o=this.cursor+(r.index||0);return new n.Token({token:i,startCursor:o,endCursor:o+i.length-1})}get nextCharacterToken(){const{cursor:e,lineLength:t}=this;return t<=e?null:new n.Token({token:this.line[e],startCursor:e,endCursor:e})}get lineFromCursor(){return this.line.substr(this.cursor)}advancePastLine(){const e=i.exec(this.lineFromCursor);return e?(this.cursor+=(e.index||0)+e[0].length,this):this.hasMoreData?null:(this.cursor=this.lineLength,this)}advanceTo(e){return this.cursor=e,this}advanceToToken(e){return this.cursor=e.startCursor,this}advancePastToken(e){return this.cursor=e.endCursor+1,this}truncateToCursor(){return this.line=this.lineFromCursor,this.lineLength=this.line.length,this.cursor=0,this}}},{"./Token":15}],15:[function(e,t,r){"use strict";Object.defineProperty(r,"__esModule",{value:!0}),r.Token=void 0;r.Token=class{constructor(e){this.token=e.token,this.startCursor=e.startCursor,this.endCursor=e.endCursor}static isTokenRowDelimiter(e){const t=e.token;return"\r"===t||"\n"===t||"\r\n"===t}static isTokenCarriageReturn(e,t){return e.token===t.carriageReturn}static isTokenComment(e,t){return t.supportsComments&&!!e&&e.token===t.comment}static isTokenEscapeCharacter(e,t){return e.token===t.escapeChar}static isTokenQuote(e,t){return e.token===t.quote}static isTokenDelimiter(e,t){return e.token===t.delimiter}}},{}],16:[function(e,t,r){"use strict";Object.defineProperty(r,"__esModule",{value:!0}),r.ColumnFormatter=void 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