Update paparse demo version

resources/js/papaparse.js

@@ -1,7 +1,8 @@
 /*!
 	Papa Parse
-	v4.3.2
+	v4.3.7
 	https://github.com/mholt/PapaParse
+	License: MIT
 */
 (function(root, factory)
 {
@@ -10,7 +11,7 @@
 		// AMD. Register as an anonymous module.
 		define([], factory);
 	}
-	else if (typeof module === 'object' && module.exports)
+	else if (typeof module === 'object' && typeof exports !== 'undefined')
 	{
 		// Node. Does not work with strict CommonJS, but
 		// only CommonJS-like environments that support module.exports,
@@ -711,7 +712,7 @@
 
 		this._chunkError = function()
 		{
-			this._sendError(reader.error);
+			this._sendError(reader.error.message);
 		}
 
 	}
@@ -877,7 +878,7 @@
 			_delimiterError = false;
 			if (!_config.delimiter)
 			{
-				var delimGuess = guessDelimiter(input, _config.newline);
+				var delimGuess = guessDelimiter(input, _config.newline, _config.skipEmptyLines);
 				if (delimGuess.successful)
 					_config.delimiter = delimGuess.bestDelimiter;
 				else
@@ -1039,7 +1040,7 @@
 			return _results;
 		}
 
-		function guessDelimiter(input, newline)
+		function guessDelimiter(input, newline, skipEmptyLines)
 		{
 			var delimChoices = [',', '\t', '|', ';', Papa.RECORD_SEP, Papa.UNIT_SEP];
 			var bestDelim, bestDelta, fieldCountPrevRow;
@@ -1047,7 +1048,7 @@
 			for (var i = 0; i < delimChoices.length; i++)
 			{
 				var delim = delimChoices[i];
-				var delta = 0, avgFieldCount = 0;
+				var delta = 0, avgFieldCount = 0, emptyLinesCount = 0;
 				fieldCountPrevRow = undefined;
 
 				var preview = new Parser({
@@ -1058,6 +1059,10 @@
 
 				for (var j = 0; j < preview.data.length; j++)
 				{
+					if (skipEmptyLines && preview.data[j].length === 1 && preview.data[j][0].length === 0) {
+						emptyLinesCount++
+						continue
+					}
 					var fieldCount = preview.data[j].length;
 					avgFieldCount += fieldCount;
 
@@ -1074,7 +1079,7 @@
 				}
 
 				if (preview.data.length > 0)
-					avgFieldCount /= preview.data.length;
+					avgFieldCount /= (preview.data.length - emptyLinesCount);
 
 				if ((typeof bestDelta === 'undefined' || delta < bestDelta)
 					&& avgFieldCount > 1.99)
@@ -1147,7 +1152,12 @@
 		var step = config.step;
 		var preview = config.preview;
 		var fastMode = config.fastMode;
-		var quoteChar = config.quoteChar || '"';
+		/** Allows for no quoteChar by setting quoteChar to undefined in config */
+		if (config.quoteChar === undefined){
+			var quoteChar = '"';
+		} else {
+			var quoteChar = config.quoteChar;
+		}
 
 		// Delimiter must be valid
 		if (typeof delim !== 'string'
@@ -1245,6 +1255,7 @@
 						// Find closing quote
 						var quoteSearch = input.indexOf(quoteChar, quoteSearch+1);
 
+						//No other quotes are found - no other delimiters
 						if (quoteSearch === -1)
 						{
 							if (!ignoreLastRow) {
@@ -1260,9 +1271,9 @@
 							return finish();
 						}
 
+						// Closing quote at EOF
 						if (quoteSearch === inputLen-1)
 						{
-							// Closing quote at EOF
 							var value = input.substring(cursor, quoteSearch).replace(quoteCharRegex, quoteChar);
 							return finish(value);
 						}
@@ -1274,9 +1285,9 @@
 							continue;
 						}
 
+						// Closing quote followed by delimiter
 						if (input[quoteSearch+1] === delim)
 						{
-							// Closing quote followed by delimiter
 							row.push(input.substring(cursor, quoteSearch).replace(quoteCharRegex, quoteChar));
 							cursor = quoteSearch + 1 + delimLen;
 							nextDelim = input.indexOf(delim, cursor);
@@ -1284,9 +1295,9 @@
 							break;
 						}
 
+						// Closing quote followed by newline
 						if (input.substr(quoteSearch+1, newlineLen) === newline)
 						{
-							// Closing quote followed by newline
 							row.push(input.substring(cursor, quoteSearch).replace(quoteCharRegex, quoteChar));
 							saveRow(quoteSearch + 1 + newlineLen);
 							nextDelim = input.indexOf(delim, cursor);	// because we may have skipped the nextDelim in the quoted field
@@ -1303,6 +1314,20 @@
 
 							break;
 						}
+
+
+						// Checks for valid closing quotes are complete (escaped quotes or quote followed by EOF/delimiter/newline) -- assume these quotes are part of an invalid text string
+						errors.push({
+							type: 'Quotes',
+							code: 'InvalidQuotes',
+							message: 'Trailing quote on quoted field is malformed',
+							row: data.length,	// row has yet to be inserted
+							index: cursor
+						});
+
+						quoteSearch++;
+						continue;
+
 					}
 
 					continue;