/*!
 * HTML5 export buttons for Buttons and DataTables.
 * 2016 SpryMedia Ltd - datatables.net/license
 *
 * FileSaver.js (1.1.20160328) - MIT license
 * Copyright © 2016 Eli Grey - https://eligrey.com
 */

(function( factory ){
	if ( typeof define === 'function' && define.amd ) {
		// AMD
		define( ['jquery', 'datatables.net', 'datatables.net-buttons'], function ( $ ) {
			return factory( $, window, document );
		} );
	}
	else if ( typeof exports === 'object' ) {
		// CommonJS
		module.exports = function (root, $, jszip, pdfmake) {
			if ( ! root ) {
				root = window;
			}

			if ( ! $ || ! $.fn.dataTable ) {
				$ = require('datatables.net')(root, $).$;
			}

			if ( ! $.fn.dataTable.Buttons ) {
				require('datatables.net-buttons')(root, $);
			}

			return factory( $, root, root.document, jszip, pdfmake );
		};
	}
	else {
		// Browser
		factory( jQuery, window, document );
	}
}(function( $, window, document, jsZip, pdfMake, undefined ) {
'use strict';
var DataTable = $.fn.dataTable;

// Allow the constructor to pass in JSZip and PDFMake from external requires.
// Otherwise, use globally defined variables, if they are available.
if ( jsZip === undefined ) {
	jsZip = window.JSZip;
}
if ( pdfMake === undefined ) {
	pdfMake = window.pdfMake;
}


/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * FileSaver.js dependency
 */

/*jslint bitwise: true, indent: 4, laxbreak: true, laxcomma: true, smarttabs: true, plusplus: true */

var _saveAs = (function(view) {
	"use strict";
	// IE <10 is explicitly unsupported
	if (typeof navigator !== "undefined" && /MSIE [1-9]\./.test(navigator.userAgent)) {
		return;
	}
	var
		  doc = view.document
		  // only get URL when necessary in case Blob.js hasn't overridden it yet
		, get_URL = function() {
			return view.URL || view.webkitURL || view;
		}
		, save_link = doc.createElementNS("https://www.w3.org/1999/xhtml", "a")
		, can_use_save_link = "download" in save_link
		, click = function(node) {
			var event = new MouseEvent("click");
			node.dispatchEvent(event);
		}
		, is_safari = /Version\/[\d\.]+.*Safari/.test(navigator.userAgent)
		, webkit_req_fs = view.webkitRequestFileSystem
		, req_fs = view.requestFileSystem || webkit_req_fs || view.mozRequestFileSystem
		, throw_outside = function(ex) {
			(view.setImmediate || view.setTimeout)(function() {
				throw ex;
			}, 0);
		}
		, force_saveable_type = "application/octet-stream"
		, fs_min_size = 0
		// the Blob API is fundamentally broken as there is no "downloadfinished" event to subscribe to
		, arbitrary_revoke_timeout = 1000 * 40 // in ms
		, revoke = function(file) {
			var revoker = function() {
				if (typeof file === "string") { // file is an object URL
					get_URL().revokeObjectURL(file);
				} else { // file is a File
					file.remove();
				}
			};
			/* // Take note W3C:
			var
			  uri = typeof file === "string" ? file : file.toURL()
			, revoker = function(evt) {
				// idealy DownloadFinishedEvent.data would be the URL requested
				if (evt.data === uri) {
					if (typeof file === "string") { // file is an object URL
						get_URL().revokeObjectURL(file);
					} else { // file is a File
						file.remove();
					}
				}
			}
			;
			view.addEventListener("downloadfinished", revoker);
			*/
			setTimeout(revoker, arbitrary_revoke_timeout);
		}
		, dispatch = function(filesaver, event_types, event) {
			event_types = [].concat(event_types);
			var i = event_types.length;
			while (i--) {
				var listener = filesaver["on" + event_types[i]];
				if (typeof listener === "function") {
					try {
						listener.call(filesaver, event || filesaver);
					} catch (ex) {
						throw_outside(ex);
					}
				}
			}
		}
		, auto_bom = function(blob) {
			// prepend BOM for UTF-8 XML and text/* types (including HTML)
			if (/^\s*(?:text\/\S*|application\/xml|\S*\/\S*\+xml)\s*;.*charset\s*=\s*utf-8/i.test(blob.type)) {
				return new Blob(["\ufeff", blob], {type: blob.type});
			}
			return blob;
		}
		, FileSaver = function(blob, name, no_auto_bom) {
			if (!no_auto_bom) {
				blob = auto_bom(blob);
			}
			// First try a.download, then web filesystem, then object URLs
			var
				  filesaver = this
				, type = blob.type
				, blob_changed = false
				, object_url
				, target_view
				, dispatch_all = function() {
					dispatch(filesaver, "writestart progress write writeend".split(" "));
				}
				// on any filesys errors revert to saving with object URLs
				, fs_error = function() {
					if (target_view && is_safari && typeof FileReader !== "undefined") {
						// Safari doesn't allow downloading of blob urls
						var reader = new FileReader();
						reader.onloadend = function() {
							var base64Data = reader.result;
							target_view.location.href = "data:attachment/file" + base64Data.slice(base64Data.search(/[,;]/));
							filesaver.readyState = filesaver.DONE;
							dispatch_all();
						};
						reader.readAsDataURL(blob);
						filesaver.readyState = filesaver.INIT;
						return;
					}
					// don't create more object URLs than needed
					if (blob_changed || !object_url) {
						object_url = get_URL().createObjectURL(blob);
					}
					if (target_view) {
						target_view.location.href = object_url;
					} else {
						var new_tab = view.open(object_url, "_blank");
						if (new_tab === undefined && is_safari) {
							//Apple do not allow window.open, see https://bit.ly/1kZffRI
							view.location.href = object_url
						}
					}
					filesaver.readyState = filesaver.DONE;
					dispatch_all();
					revoke(object_url);
				}
				, abortable = function(func) {
					return function() {
						if (filesaver.readyState !== filesaver.DONE) {
							return func.apply(this, arguments);
						}
					};
				}
				, create_if_not_found = {create: true, exclusive: false}
				, slice
			;
			filesaver.readyState = filesaver.INIT;
			if (!name) {
				name = "download";
			}
			if (can_use_save_link) {
				object_url = get_URL().createObjectURL(blob);
				setTimeout(function() {
					save_link.href = object_url;
					save_link.download = name;
					click(save_link);
					dispatch_all();
					revoke(object_url);
					filesaver.readyState = filesaver.DONE;
				});
				return;
			}
			// Object and web filesystem URLs have a problem saving in Google Chrome when
			// viewed in a tab, so I force save with application/octet-stream
			// https://code.google.com/p/chromium/issues/detail?id=91158
			// Update: Google errantly closed 91158, I submitted it again:
			// https://code.google.com/p/chromium/issues/detail?id=389642
			if (view.chrome && type && type !== force_saveable_type) {
				slice = blob.slice || blob.webkitSlice;
				blob = slice.call(blob, 0, blob.size, force_saveable_type);
				blob_changed = true;
			}
			// Since I can't be sure that the guessed media type will trigger a download
			// in WebKit, I append .download to the filename.
			// https://bugs.webkit.org/show_bug.cgi?id=65440
			if (webkit_req_fs && name !== "download") {
				name += ".download";
			}
			if (type === force_saveable_type || webkit_req_fs) {
				target_view = view;
			}
			if (!req_fs) {
				fs_error();
				return;
			}
			fs_min_size += blob.size;
			req_fs(view.TEMPORARY, fs_min_size, abortable(function(fs) {
				fs.root.getDirectory("saved", create_if_not_found, abortable(function(dir) {
					var save = function() {
						dir.getFile(name, create_if_not_found, abortable(function(file) {
							file.createWriter(abortable(function(writer) {
								writer.onwriteend = function(event) {
									target_view.location.href = file.toURL();
									filesaver.readyState = filesaver.DONE;
									dispatch(filesaver, "writeend", event);
									revoke(file);
								};
								writer.onerror = function() {
									var error = writer.error;
									if (error.code !== error.ABORT_ERR) {
										fs_error();
									}
								};
								"writestart progress write abort".split(" ").forEach(function(event) {
									writer["on" + event] = filesaver["on" + event];
								});
								writer.write(blob);
								filesaver.abort = function() {
									writer.abort();
									filesaver.readyState = filesaver.DONE;
								};
								filesaver.readyState = filesaver.WRITING;
							}), fs_error);
						}), fs_error);
					};
					dir.getFile(name, {create: false}, abortable(function(file) {
						// delete file if it already exists
						file.remove();
						save();
					}), abortable(function(ex) {
						if (ex.code === ex.NOT_FOUND_ERR) {
							save();
						} else {
							fs_error();
						}
					}));
				}), fs_error);
			}), fs_error);
		}
		, FS_proto = FileSaver.prototype
		, saveAs = function(blob, name, no_auto_bom) {
			return new FileSaver(blob, name, no_auto_bom);
		}
	;
	// IE 10+ (native saveAs)
	if (typeof navigator !== "undefined" && navigator.msSaveOrOpenBlob) {
		return function(blob, name, no_auto_bom) {
			if (!no_auto_bom) {
				blob = auto_bom(blob);
			}
			return navigator.msSaveOrOpenBlob(blob, name || "download");
		};
	}

	FS_proto.abort = function() {
		var filesaver = this;
		filesaver.readyState = filesaver.DONE;
		dispatch(filesaver, "abort");
	};
	FS_proto.readyState = FS_proto.INIT = 0;
	FS_proto.WRITING = 1;
	FS_proto.DONE = 2;

	FS_proto.error =
	FS_proto.onwritestart =
	FS_proto.onprogress =
	FS_proto.onwrite =
	FS_proto.onabort =
	FS_proto.onerror =
	FS_proto.onwriteend =
		null;

	return saveAs;
}(
	   typeof self !== "undefined" && self
	|| typeof window !== "undefined" && window
	|| this.content
));


// Expose file saver on the DataTables API. Can't attach to `DataTables.Buttons`
// since this file can be loaded before Button's core!
DataTable.fileSave = _saveAs;


/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * Local (private) functions
 */

/**
 * Get the file name for an exported file.
 *
 * @param {object}	config Button configuration
 * @param {boolean} incExtension Include the file name extension
 */
var _filename = function ( config, incExtension )
{
	// Backwards compatibility
	var filename = config.filename === '*' && config.title !== '*' && config.title !== undefined ?
		config.title :
		config.filename;

	if ( typeof filename === 'function' ) {
		filename = filename();
	}

	if ( filename.indexOf( '*' ) !== -1 ) {
		filename = $.trim( filename.replace( '*', $('title').text() ) );
	}

	// Strip characters which the OS will object to
	filename = filename.replace(/[^a-zA-Z0-9_\u00A1-\uFFFF\.,\-_ !\(\)]/g, "");

	return incExtension === undefined || incExtension === true ?
		filename+config.extension :
		filename;
};

/**
 * Get the sheet name for Excel exports.
 *
 * @param {object}	config Button configuration
 */
var _sheetname = function ( config )
{
	var sheetName = 'Sheet1';

	if ( config.sheetName ) {
		sheetName = config.sheetName.replace(/[\[\]\*\/\\\?\:]/g, '');
	}

return sheetName;
};

/**
 * Get the title for an exported file.
 *
 * @param {object} config	Button configuration
 */
var _title = function ( config )
{
	var title = config.title;

	if ( typeof title === 'function' ) {
		title = title();
	}

	return title.indexOf( '*' ) !== -1 ?
		title.replace( '*', $('title').text() || 'Exported data' ) :
		title;
};

/**
 * Get the newline character(s)
 *
 * @param {object}	config Button configuration
 * @return {string}				Newline character
 */
var _newLine = function ( config )
{
	return config.newline ?
		config.newline :
		navigator.userAgent.match(/Windows/) ?
			'\r\n' :
			'\n';
};

/**
 * Combine the data from the `buttons.exportData` method into a string that
 * will be used in the export file.
 *
 * @param	{DataTable.Api} dt		 DataTables API instance
 * @param	{object}				config Button configuration
 * @return {object}							 The data to export
 */
var _exportData = function ( dt, config )
{
	var newLine = _newLine( config );
	var data = dt.buttons.exportData( config.exportOptions );
	var boundary = config.fieldBoundary;
	var separator = config.fieldSeparator;
	var reBoundary = new RegExp( boundary, 'g' );
	var escapeChar = config.escapeChar !== undefined ?
		config.escapeChar :
		'\\';
	var join = function ( a ) {
		var s = '';

		// If there is a field boundary, then we might need to escape it in
		// the source data
		for ( var i=0, ien=a.length ; i<ien ; i++ ) {
			if ( i > 0 ) {
				s += separator;
			}

			s += boundary ?
				boundary + ('' + a[i]).replace( reBoundary, escapeChar+boundary ) + boundary :
				a[i];
		}

		return s;
	};

	var header = config.header ? join( data.header )+newLine : '';
	var footer = config.footer && data.footer ? newLine+join( data.footer ) : '';
	var body = [];

	for ( var i=0, ien=data.body.length ; i<ien ; i++ ) {
		body.push( join( data.body[i] ) );
	}

	return {
		str: header + body.join( newLine ) + footer,
		rows: body.length
	};
};

/**
 * Safari's data: support for creating and downloading files is really poor, so
 * various options need to be disabled in it. See
 * https://bugs.webkit.org/show_bug.cgi?id=102914
 *
 * @return {Boolean} `true` if Safari
 */
var _isSafari = function ()
{
	return navigator.userAgent.indexOf('Safari') !== -1 &&
		navigator.userAgent.indexOf('Chrome') === -1 &&
		navigator.userAgent.indexOf('Opera') === -1;
};

/**
 * Convert from numeric position to letter for column names in Excel
 * @param  {int} n Column number
 * @return {string} Column letter(s) name
 */
function createCellPos( n ){
	var ordA = 'A'.charCodeAt(0);
	var ordZ = 'Z'.charCodeAt(0);
	var len = ordZ - ordA + 1;
	var s = "";

	while( n >= 0 ) {
		s = String.fromCharCode(n % len + ordA) + s;
		n = Math.floor(n / len) - 1;
	}

	return s;
}

try {
	var _serialiser = new XMLSerializer();
	var _ieExcel;
}
catch (t) {}

/**
 * Recursively add XML files from an object's structure to a ZIP file. This
 * allows the XSLX file to be easily defined with an object's structure matching
 * the files structure.
 *
 * @param {JSZip} zip ZIP package
 * @param {object} obj Object to add (recursive)
 */
function _addToZip( zip, obj ) {
	if ( _ieExcel === undefined ) {
		// Detect if we are dealing with IE's _awful_ serialiser by seeing if it
		// drop attributes
		_ieExcel = _serialiser
			.serializeToString(
				$.parseXML( excelStrings['xl/worksheets/sheet1.xml'] )
			)
			.indexOf( 'xmlns:r' ) === -1;
	}

	$.each( obj, function ( name, val ) {
		if ( $.isPlainObject( val ) ) {
			var newDir = zip.folder( name );
			_addToZip( newDir, val );
		}
		else {
			if ( _ieExcel ) {
				// IE's XML serialiser will drop some name space attributes from
				// from the root node, so we need to save them. Do this by
				// replacing the namespace nodes with a regular attribute that
				// we convert back when serialised. Edge does not have this
				// issue
				var worksheet = val.childNodes[0];
				var i, ien;
				var attrs = [];

				for ( i=worksheet.attributes.length-1 ; i>=0 ; i-- ) {
					var attrName = worksheet.attributes[i].nodeName;
					var attrValue = worksheet.attributes[i].nodeValue;

					if ( attrName.indexOf( ':' ) !== -1 ) {
						attrs.push( { name: attrName, value: attrValue } );

						worksheet.removeAttribute( attrName );
					}
				}

				for ( i=0, ien=attrs.length ; i<ien ; i++ ) {
					var attr = val.createAttribute( attrs[i].name.replace( ':', '_dt_b_namespace_token_' ) );
					attr.value = attrs[i].value;
					worksheet.setAttributeNode( attr );
				}
			}

			var str = _serialiser.serializeToString(val);

			// Fix IE's XML
			if ( _ieExcel ) {
				// IE doesn't include the XML declaration
				if ( str.indexOf( '<?xml' ) === -1 ) {
					str = '<?xml version="1.0" encoding="UTF-8" standalone="yes"?>'+str;
				}

				// Return namespace attributes to being as such
				str = str.replace( /_dt_b_namespace_token_/g, ':' );
			}

			// Both IE and Edge will put empty name space attributes onto the
			// rows and columns making them useless
			str = str
				.replace( /<row xmlns="" /g, '<row ' )
				.replace( /<cols xmlns="">/g, '<cols>' );

			zip.file( name, str );
		}
	} );
}

/**
 * Create an XML node and add any children, attributes, etc without needing to
 * be verbose in the DOM.
 *
 * @param  {object} doc      XML document
 * @param  {string} nodeName Node name
 * @param  {object} opts     Options - can be `attr` (attributes), `children`
 *   (child nodes) and `text` (text content)
 * @return {node}            Created node
 */
function _createNode( doc, nodeName, opts ) {
	var tempNode = doc.createElement( nodeName );

	if ( opts ) {
		if ( opts.attr ) {
			$(tempNode).attr( opts.attr );
		}

		if( opts.children ) {
			$.each( opts.children, function ( key, value ) {
				tempNode.appendChild( value );
			});
		}

		if( opts.text ) {
			tempNode.appendChild( doc.createTextNode( opts.text ) );
		}
	}

	return tempNode;
}

/**
 * Get the width for an Excel column based on the contents of that column
 * @param  {object} data Data for export
 * @param  {int}    col  Column index
 * @return {int}         Column width
 */
function _excelColWidth( data, col ) {
	var max = data.header[col].length;
	var len;

	if ( data.footer && data.footer[col].length > max ) {
		max = data.footer[col].length;
	}

	for ( var i=0, ien=data.body.length ; i<ien ; i++ ) {
		len = data.body[i][col].toString().length;

		if ( len > max ) {
			max = len;
		}

		// Max width rather than having potentially massive column widths
		if ( max > 40 ) {
			break;
		}
	}

	// And a min width
	return max > 5 ? max : 5;
}

// Excel - Pre-defined strings to build a basic XLSX file
var excelStrings = {
	"_rels/.rels":
		'<?xml version="1.0" encoding="UTF-8" standalone="yes"?>'+
		'<Relationships xmlns="https://schemas.openxmlformats.org/package/2006/relationships">'+
			'<Relationship Id="rId1" Type="https://schemas.openxmlformats.org/officeDocument/2006/relationships/officeDocument" Target="xl/workbook.xml"/>'+
		'</Relationships>',

	"xl/_rels/workbook.xml.rels":
		'<?xml version="1.0" encoding="UTF-8" standalone="yes"?>'+
		'<Relationships xmlns="https://schemas.openxmlformats.org/package/2006/relationships">'+
			'<Relationship Id="rId1" Type="https://schemas.openxmlformats.org/officeDocument/2006/relationships/worksheet" Target="worksheets/sheet1.xml"/>'+
			'<Relationship Id="rId2" Type="https://schemas.openxmlformats.org/officeDocument/2006/relationships/styles" Target="styles.xml"/>'+
		'</Relationships>',

	"[Content_Types].xml":
		'<?xml version="1.0" encoding="UTF-8" standalone="yes"?>'+
		'<Types xmlns="https://schemas.openxmlformats.org/package/2006/content-types">'+
			'<Default Extension="xml" ContentType="application/xml" />'+
			'<Default Extension="rels" ContentType="application/vnd.openxmlformats-package.relationships+xml" />'+
			'<Default Extension="jpeg" ContentType="image/jpeg" />'+
			'<Override PartName="/xl/workbook.xml" ContentType="application/vnd.openxmlformats-officedocument.spreadsheetml.sheet.main+xml" />'+
			'<Override PartName="/xl/worksheets/sheet1.xml" ContentType="application/vnd.openxmlformats-officedocument.spreadsheetml.worksheet+xml" />'+
			'<Override PartName="/xl/styles.xml" ContentType="application/vnd.openxmlformats-officedocument.spreadsheetml.styles+xml" />'+
		'</Types>',

	"xl/workbook.xml":
		'<?xml version="1.0" encoding="UTF-8" standalone="yes"?>'+
		'<workbook xmlns="https://schemas.openxmlformats.org/spreadsheetml/2006/main" xmlns:r="https://schemas.openxmlformats.org/officeDocument/2006/relationships">'+
			'<fileVersion appName="xl" lastEdited="5" lowestEdited="5" rupBuild="24816"/>'+
			'<workbookPr showInkAnnotation="0" autoCompressPictures="0"/>'+
			'<bookViews>'+
				'<workbookView xWindow="0" yWindow="0" windowWidth="25600" windowHeight="19020" tabRatio="500"/>'+
			'</bookViews>'+
			'<sheets>'+
				'<sheet name="" sheetId="1" r:id="rId1"/>'+
			'</sheets>'+
		'</workbook>',

	"xl/worksheets/sheet1.xml":
		'<?xml version="1.0" encoding="UTF-8" standalone="yes"?>'+
		'<worksheet xmlns="https://schemas.openxmlformats.org/spreadsheetml/2006/main" xmlns:r="https://schemas.openxmlformats.org/officeDocument/2006/relationships" xmlns:mc="https://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="x14ac" xmlns:x14ac="https://schemas.microsoft.com/office/spreadsheetml/2009/9/ac">'+
			'<sheetData/>'+
		'</worksheet>',

	"xl/styles.xml": 
		'<?xml version="1.0" encoding="UTF-8"?>'+
		'<styleSheet xmlns="https://schemas.openxmlformats.org/spreadsheetml/2006/main" xmlns:mc="https://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="x14ac" xmlns:x14ac="https://schemas.microsoft.com/office/spreadsheetml/2009/9/ac">'+
			'<fonts count="5" x14ac:knownFonts="1">'+
				'<font>'+
					'<sz val="11" />'+
					'<name val="Calibri" />'+
				'</font>'+
				'<font>'+
					'<sz val="11" />'+
					'<name val="Calibri" />'+
					'<color rgb="FFFFFFFF" />'+
				'</font>'+
				'<font>'+
					'<sz val="11" />'+
					'<name val="Calibri" />'+
					'<b />'+
				'</font>'+
				'<font>'+
					'<sz val="11" />'+
					'<name val="Calibri" />'+
					'<i />'+
				'</font>'+
				'<font>'+
					'<sz val="11" />'+
					'<name val="Calibri" />'+
					'<u />'+
				'</font>'+
			'</fonts>'+
			'<fills count="6">'+
				'<fill>'+
					'<patternFill patternType="none" />'+
				'</fill>'+
				'<fill/>'+ // Excel appears to use this as a dotted background regardless of values
				'<fill>'+
					'<patternFill patternType="solid">'+
						'<fgColor rgb="FFD9D9D9" />'+
						'<bgColor indexed="64" />'+
					'</patternFill>'+
				'</fill>'+
				'<fill>'+
					'<patternFill patternType="solid">'+
						'<fgColor rgb="FFD99795" />'+
						'<bgColor indexed="64" />'+
					'</patternFill>'+
				'</fill>'+
				'<fill>'+
					'<patternFill patternType="solid">'+
						'<fgColor rgb="ffc6efce" />'+
						'<bgColor indexed="64" />'+
					'</patternFill>'+
				'</fill>'+
				'<fill>'+
					'<patternFill patternType="solid">'+
						'<fgColor rgb="ffc6cfef" />'+
						'<bgColor indexed="64" />'+
					'</patternFill>'+
				'</fill>'+
			'</fills>'+
			'<borders count="2">'+
				'<border>'+
					'<left />'+
					'<right />'+
					'<top />'+
					'<bottom />'+
					'<diagonal />'+
				'</border>'+
				'<border diagonalUp="false" diagonalDown="false">'+
					'<left style="thin">'+
						'<color auto="1" />'+
					'</left>'+
					'<right style="thin">'+
						'<color auto="1" />'+
					'</right>'+
					'<top style="thin">'+
						'<color auto="1" />'+
					'</top>'+
					'<bottom style="thin">'+
						'<color auto="1" />'+
					'</bottom>'+
					'<diagonal />'+
				'</border>'+
			'</borders>'+
			'<cellStyleXfs count="1">'+
				'<xf numFmtId="0" fontId="0" fillId="0" borderId="0" />'+
			'</cellStyleXfs>'+
			'<cellXfs count="2">'+
				'<xf numFmtId="0" fontId="0" fillId="0" borderId="0" applyFont="1" applyFill="1" applyBorder="1"/>'+
				'<xf numFmtId="0" fontId="1" fillId="0" borderId="0" applyFont="1" applyFill="1" applyBorder="1"/>'+
				'<xf numFmtId="0" fontId="2" fillId="0" borderId="0" applyFont="1" applyFill="1" applyBorder="1"/>'+
				'<xf numFmtId="0" fontId="3" fillId="0" borderId="0" applyFont="1" applyFill="1" applyBorder="1"/>'+
				'<xf numFmtId="0" fontId="4" fillId="0" borderId="0" applyFont="1" applyFill="1" applyBorder="1"/>'+
				'<xf numFmtId="0" fontId="0" fillId="2" borderId="0" applyFont="1" applyFill="1" applyBorder="1"/>'+
				'<xf numFmtId="0" fontId="1" fillId="2" borderId="0" applyFont="1" applyFill="1" applyBorder="1"/>'+
				'<xf numFmtId="0" fontId="2" fillId="2" borderId="0" applyFont="1" applyFill="1" applyBorder="1"/>'+
				'<xf numFmtId="0" fontId="3" fillId="2" borderId="0" applyFont="1" applyFill="1" applyBorder="1"/>'+
				'<xf numFmtId="0" fontId="4" fillId="2" borderId="0" applyFont="1" applyFill="1" applyBorder="1"/>'+
				'<xf numFmtId="0" fontId="0" fillId="4" borderId="0" applyFont="1" applyFill="1" applyBorder="1"/>'+
				'<xf numFmtId="0" fontId="1" fillId="4" borderId="0" applyFont="1" applyFill="1" applyBorder="1"/>'+
				'<xf numFmtId="0" fontId="2" fillId="4" borderId="0" applyFont="1" applyFill="1" applyBorder="1"/>'+
				'<xf numFmtId="0" fontId="3" fillId="4" borderId="0" applyFont="1" applyFill="1" applyBorder="1"/>'+
				'<xf numFmtId="0" fontId="4" fillId="4" borderId="0" applyFont="1" applyFill="1" applyBorder="1"/>'+
				'<xf numFmtId="0" fontId="0" fillId="4" borderId="0" applyFont="1" applyFill="1" applyBorder="1"/>'+
				'<xf numFmtId="0" fontId="1" fillId="4" borderId="0" applyFont="1" applyFill="1" applyBorder="1"/>'+
				'<xf numFmtId="0" fontId="2" fillId="4" borderId="0" applyFont="1" applyFill="1" applyBorder="1"/>'+
				'<xf numFmtId="0" fontId="3" fillId="4" borderId="0" applyFont="1" applyFill="1" applyBorder="1"/>'+
				'<xf numFmtId="0" fontId="4" fillId="4" borderId="0" applyFont="1" applyFill="1" applyBorder="1"/>'+
				'<xf numFmtId="0" fontId="0" fillId="5" borderId="0" applyFont="1" applyFill="1" applyBorder="1"/>'+
				'<xf numFmtId="0" fontId="1" fillId="5" borderId="0" applyFont="1" applyFill="1" applyBorder="1"/>'+
				'<xf numFmtId="0" fontId="2" fillId="5" borderId="0" applyFont="1" applyFill="1" applyBorder="1"/>'+
				'<xf numFmtId="0" fontId="3" fillId="5" borderId="0" applyFont="1" applyFill="1" applyBorder="1"/>'+
				'<xf numFmtId="0" fontId="4" fillId="5" borderId="0" applyFont="1" applyFill="1" applyBorder="1"/>'+
				'<xf numFmtId="0" fontId="0" fillId="0" borderId="1" applyFont="1" applyFill="1" applyBorder="1"/>'+
				'<xf numFmtId="0" fontId="1" fillId="0" borderId="1" applyFont="1" applyFill="1" applyBorder="1"/>'+
				'<xf numFmtId="0" fontId="2" fillId="0" borderId="1" applyFont="1" applyFill="1" applyBorder="1"/>'+
				'<xf numFmtId="0" fontId="3" fillId="0" borderId="1" applyFont="1" applyFill="1" applyBorder="1"/>'+
				'<xf numFmtId="0" fontId="4" fillId="0" borderId="1" applyFont="1" applyFill="1" applyBorder="1"/>'+
				'<xf numFmtId="0" fontId="0" fillId="2" borderId="1" applyFont="1" applyFill="1" applyBorder="1"/>'+
				'<xf numFmtId="0" fontId="1" fillId="2" borderId="1" applyFont="1" applyFill="1" applyBorder="1"/>'+
				'<xf numFmtId="0" fontId="2" fillId="2" borderId="1" applyFont="1" applyFill="1" applyBorder="1"/>'+
				'<xf numFmtId="0" fontId="3" fillId="2" borderId="1" applyFont="1" applyFill="1" applyBorder="1"/>'+
				'<xf numFmtId="0" fontId="4" fillId="2" borderId="1" applyFont="1" applyFill="1" applyBorder="1"/>'+
				'<xf numFmtId="0" fontId="0" fillId="3" borderId="1" applyFont="1" applyFill="1" applyBorder="1"/>'+
				'<xf numFmtId="0" fontId="1" fillId="3" borderId="1" applyFont="1" applyFill="1" applyBorder="1"/>'+
				'<xf numFmtId="0" fontId="2" fillId="3" borderId="1" applyFont="1" applyFill="1" applyBorder="1"/>'+
				'<xf numFmtId="0" fontId="3" fillId="3" borderId="1" applyFont="1" applyFill="1" applyBorder="1"/>'+
				'<xf numFmtId="0" fontId="4" fillId="3" borderId="1" applyFont="1" applyFill="1" applyBorder="1"/>'+
				'<xf numFmtId="0" fontId="0" fillId="4" borderId="1" applyFont="1" applyFill="1" applyBorder="1"/>'+
				'<xf numFmtId="0" fontId="1" fillId="4" borderId="1" applyFont="1" applyFill="1" applyBorder="1"/>'+
				'<xf numFmtId="0" fontId="2" fillId="4" borderId="1" applyFont="1" applyFill="1" applyBorder="1"/>'+
				'<xf numFmtId="0" fontId="3" fillId="4" borderId="1" applyFont="1" applyFill="1" applyBorder="1"/>'+
				'<xf numFmtId="0" fontId="4" fillId="4" borderId="1" applyFont="1" applyFill="1" applyBorder="1"/>'+
				'<xf numFmtId="0" fontId="0" fillId="5" borderId="1" applyFont="1" applyFill="1" applyBorder="1"/>'+
				'<xf numFmtId="0" fontId="1" fillId="5" borderId="1" applyFont="1" applyFill="1" applyBorder="1"/>'+
				'<xf numFmtId="0" fontId="2" fillId="5" borderId="1" applyFont="1" applyFill="1" applyBorder="1"/>'+
				'<xf numFmtId="0" fontId="3" fillId="5" borderId="1" applyFont="1" applyFill="1" applyBorder="1"/>'+
				'<xf numFmtId="0" fontId="4" fillId="5" borderId="1" applyFont="1" applyFill="1" applyBorder="1"/>'+
			'</cellXfs>'+
			'<cellStyles count="1">'+
				'<cellStyle name="Normal" xfId="0" builtinId="0" />'+
			'</cellStyles>'+
			'<dxfs count="0" />'+
			'<tableStyles count="0" defaultTableStyle="TableStyleMedium9" defaultPivotStyle="PivotStyleMedium4" />'+
		'</styleSheet>'
};
// Note we could use 3 `for` loops for the styles, but when gzipped there is
// virtually no difference in size, since the above can be easily compressed



/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * Buttons
 */

//
// Copy to clipboard
//
DataTable.ext.buttons.copyHtml5 = {
	className: 'buttons-copy buttons-html5',

	text: function ( dt ) {
		return dt.i18n( 'buttons.copy', 'Copy' );
	},

	action: function ( e, dt, button, config ) {
		var exportData = _exportData( dt, config );
		var output = exportData.str;
		var hiddenDiv = $('<div/>')
			.css( {
				height: 1,
				width: 1,
				overflow: 'hidden',
				position: 'fixed',
				top: 0,
				left: 0
			} );

		if ( config.customize ) {
			output = config.customize( output, config );
		}

		var textarea = $('<textarea readonly/>')
			.val( output )
			.appendTo( hiddenDiv );

		// For browsers that support the copy execCommand, try to use it
		if ( document.queryCommandSupported('copy') ) {
			hiddenDiv.appendTo( dt.table().container() );
			textarea[0].focus();
			textarea[0].select();

			try {
				document.execCommand( 'copy' );
				hiddenDiv.remove();

				dt.buttons.info(
					dt.i18n( 'buttons.copyTitle', 'Copy to clipboard' ),
					dt.i18n( 'buttons.copySuccess', {
							1: "Copied one row to clipboard",
							_: "Copied %d rows to clipboard"
						}, exportData.rows ),
					2000
				);

				return;
			}
			catch (t) {}
		}

		// Otherwise we show the text box and instruct the user to use it
		var message = $('<span>'+dt.i18n( 'buttons.copyKeys',
				'Press <i>ctrl</i> or <i>\u2318</i> + <i>C</i> to copy the table data<br>to your system clipboard.<br><br>'+
				'To cancel, click this message or press escape.' )+'</span>'
			)
			.append( hiddenDiv );

		dt.buttons.info( dt.i18n( 'buttons.copyTitle', 'Copy to clipboard' ), message, 0 );

		// Select the text so when the user activates their system clipboard
		// it will copy that text
		textarea[0].focus();
		textarea[0].select();

		// Event to hide the message when the user is done
		var container = $(message).closest('.dt-button-info');
		var close = function () {
			container.off( 'click.buttons-copy' );
			$(document).off( '.buttons-copy' );
			dt.buttons.info( false );
		};

		container.on( 'click.buttons-copy', close );
		$(document)
			.on( 'keydown.buttons-copy', function (e) {
				if ( e.keyCode === 27 ) { // esc
					close();
				}
			} )
			.on( 'copy.buttons-copy cut.buttons-copy', function () {
				close();
			} );
	},

	exportOptions: {},

	fieldSeparator: '\t',

	fieldBoundary: '',

	header: true,

	footer: false
};

//
// CSV export
//
DataTable.ext.buttons.csvHtml5 = {
	className: 'buttons-csv buttons-html5',

	available: function () {
		return window.FileReader !== undefined && window.Blob;
	},

	text: function ( dt ) {
		return dt.i18n( 'buttons.csv', 'CSV' );
	},

	action: function ( e, dt, button, config ) {
		// Set the text
		var output = _exportData( dt, config ).str;
		var charset = config.charset;

		if ( config.customize ) {
			output = config.customize( output, config );
		}

		if ( charset !== false ) {
			if ( ! charset ) {
				charset = document.characterSet || document.charset;
			}

			if ( charset ) {
				charset = ';charset='+charset;
			}
		}
		else {
			charset = '';
		}

		_saveAs(
			new Blob( [output], {type: 'text/csv'+charset} ),
			_filename( config )
		);
	},

	filename: '*',

	extension: '.csv',

	exportOptions: {},

	fieldSeparator: ',',

	fieldBoundary: '"',

	escapeChar: '"',

	charset: null,

	header: true,

	footer: false
};

//
// Excel (xlsx) export
//
DataTable.ext.buttons.excelHtml5 = {
	className: 'buttons-excel buttons-html5',

	available: function () {
		return window.FileReader !== undefined && jsZip !== undefined && ! _isSafari() && _serialiser;
	},

	text: function ( dt ) {
		return dt.i18n( 'buttons.excel', 'Excel' );
	},

	action: function ( e, dt, button, config ) {
		var rowPos = 0;
		var getXml = function ( type ) {
			var str = excelStrings[ type ];

			//str = str.replace( /xmlns:/g, 'xmlns_' ).replace( /mc:/g, 'mc_' );

			return $.parseXML( str );
		};
		var rels = getXml('xl/worksheets/sheet1.xml');
		var relsGet = rels.getElementsByTagName( "sheetData" )[0];

		var xlsx = {
			_rels: {
				".rels": getXml('_rels/.rels')
			},
			xl: {
				_rels: {
					"workbook.xml.rels": getXml('xl/_rels/workbook.xml.rels')
				},
				"workbook.xml": getXml('xl/workbook.xml'),
				"styles.xml": getXml('xl/styles.xml'),
				"worksheets": {
					"sheet1.xml": rels
				}

			},
			"[Content_Types].xml": getXml('[Content_Types].xml')
		};

		var data = dt.buttons.exportData( config.exportOptions );
		var currentRow, rowNode;
		var addRow = function ( row ) {
			currentRow = rowPos+1;
			rowNode = _createNode( rels, "row", { attr: {r:currentRow} } );

			for ( var i=0, ien=row.length ; i<ien ; i++ ) {
				// Concat both the Cell Columns as a letter and the Row of the cell.
				var cellId = createCellPos(i) + '' + currentRow;
				var cell;

				if ( row[i] === null || row[i] === undefined ) {
					row[i] = '';
				}

				// Detect numbers - don't match numbers with leading zeros or a negative
				// anywhere but the start
				if ( typeof row[i] === 'number' || (
						row[i].match &&
						$.trim(row[i]).match(/^-?\d+(\.\d+)?$/) &&
						! $.trim(row[i]).match(/^0\d+/) )
				) {
					cell = _createNode( rels, 'c', {
						attr: {
							t: 'n',
							r: cellId
						},
						children: [
							_createNode( rels, 'v', { text: row[i] } )
						]
					} );
				}
				else {
					// Replace non standard characters for text output
					var text = ! row[i].replace ?
						row[i] :
						row[i]
							.replace(/&(?!amp;)/g, '&amp;')
							.replace(/</g, '&lt;')
							.replace(/>/g, '&gt;')
							.replace(/[\x00-\x09\x0B\x0C\x0E-\x1F\x7F-\x9F]/g, '');

					cell = _createNode( rels, 'c', {
						attr: {
							t: 'inlineStr',
							r: cellId
						},
						children:{
							row: _createNode( rels, 'is', {
								children: {
									row: _createNode( rels, 't', {
										text: text
									} )
								}
							} )
						}
					} );
				}

				rowNode.appendChild( cell );
			}
			relsGet.appendChild(rowNode);
			rowPos++;
		};

		$( 'sheets sheet', xlsx.xl['workbook.xml'] ).attr( 'name', _sheetname( config ) );

		if ( config.customizeData ) {
			config.customizeData( data );
		}

		if ( config.header ) {
			addRow( data.header, rowPos );
			$('row c', rels).attr( 's', '2' ); // bold
		}

		for ( var n=0, ie=data.body.length ; n<ie ; n++ ) {
			addRow( data.body[n], rowPos );
		}

		if ( config.footer && data.footer ) {
			addRow( data.footer, rowPos);
			$('row:last c', rels).attr( 's', '2' ); // bold
		}

		// Set column widths
		var cols = _createNode( rels, 'cols' );
		$('worksheet', rels).prepend( cols );

		for ( var i=0, ien=data.header.length ; i<ien ; i++ ) {
			cols.appendChild( _createNode( rels, 'col', {
				attr: {
					min: i+1,
					max: i+1,
					width: _excelColWidth( data, i ),
					customWidth: 1
				}
			} ) );
		}

		// Let the developer customise the document if they want to
		if ( config.customize ) {
			config.customize( xlsx );
		}

		var zip = new jsZip();
		var zipConfig = {
			type: 'blob',
			mimeType: 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'
		};

		_addToZip( zip, xlsx );

		if ( zip.generateAsync ) {
			// JSZip 3+
			zip
				.generateAsync( zipConfig )
				.then( function ( blob ) {
					_saveAs( blob, _filename( config ) );
				} );
		}
		else {
			// JSZip 2.5
			_saveAs(
				zip.generate( zipConfig ),
				_filename( config )
			);
		}
	},

	filename: '*',

	extension: '.xlsx',

	exportOptions: {},

	header: true,

	footer: false
};

//
// PDF export - using pdfMake - https://pdfmake.org
//
DataTable.ext.buttons.pdfHtml5 = {
	className: 'buttons-pdf buttons-html5',

	available: function () {
		return window.FileReader !== undefined && pdfMake;
	},

	text: function ( dt ) {
		return dt.i18n( 'buttons.pdf', 'PDF' );
	},

	action: function ( e, dt, button, config ) {
		var newLine = _newLine( config );
		var data = dt.buttons.exportData( config.exportOptions );
		var rows = [];

		if ( config.header ) {
			rows.push( $.map( data.header, function ( d ) {
				return {
					text: typeof d === 'string' ? d : d+'',
					style: 'tableHeader'
				};
			} ) );
		}

		for ( var i=0, ien=data.body.length ; i<ien ; i++ ) {
			rows.push( $.map( data.body[i], function ( d ) {
				return {
					text: typeof d === 'string' ? d : d+'',
					style: i % 2 ? 'tableBodyEven' : 'tableBodyOdd'
				};
			} ) );
		}

		if ( config.footer && data.footer) {
			rows.push( $.map( data.footer, function ( d ) {
				return {
					text: typeof d === 'string' ? d : d+'',
					style: 'tableFooter'
				};
			} ) );
		}

		var doc = {
			pageSize: config.pageSize,
			pageOrientation: config.orientation,
			content: [
				{
					table: {
						headerRows: 1,
						body: rows
					},
					layout: 'noBorders'
				}
			],
			styles: {
				tableHeader: {
					bold: true,
					fontSize: 11,
					color: 'white',
					fillColor: '#2d4154',
					alignment: 'center'
				},
				tableBodyEven: {},
				tableBodyOdd: {
					fillColor: '#f3f3f3'
				},
				tableFooter: {
					bold: true,
					fontSize: 11,
					color: 'white',
					fillColor: '#2d4154'
				},
				title: {
					alignment: 'center',
					fontSize: 15
				},
				message: {}
			},
			defaultStyle: {
				fontSize: 10
			}
		};

		if ( config.message ) {
			doc.content.unshift( {
				text: config.message,
				style: 'message',
				margin: [ 0, 0, 0, 12 ]
			} );
		}

		if ( config.title ) {
			doc.content.unshift( {
				text: _title( config, false ),
				style: 'title',
				margin: [ 0, 0, 0, 12 ]
			} );
		}

		if ( config.customize ) {
			config.customize( doc, config );
		}

		var pdf = pdfMake.createPdf( doc );

		if ( config.download === 'open' && ! _isSafari() ) {
			pdf.open();
		}
		else {
			pdf.getBuffer( function (buffer) {
				var blob = new Blob( [buffer], {type:'application/pdf'} );

				_saveAs( blob, _filename( config ) );
			} );
		}
	},

	title: '*',

	filename: '*',

	extension: '.pdf',

	exportOptions: {},

	orientation: 'portrait',

	pageSize: 'A4',

	header: true,

	footer: false,

	message: null,

	customize: null,

	download: 'download'
};


return DataTable.Buttons;
}));
