CntrlComparison parsing

Core/Parsers/CsvParserBase.cs

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+using System;
+using System.Collections.Generic;
+using System.IO;
+using CsvHelper;
+using CsvHelper.Configuration;
+
+namespace LeafWeb.Core.Parsers
+{
+	public class CsvParserBase : IDisposable
+	{
+		protected readonly FileSystemInfo CsvFile;
+		private readonly StreamReader _reader;
+		protected readonly CsvReader CsvReader;
+
+		protected CsvParserBase(FileSystemInfo csvFile)
+		{
+			CsvFile = csvFile;
+			if (!csvFile.Exists)
+				throw new FileNotFoundException($"Cannot find file '{csvFile.Name}'");
+
+			_reader = File.OpenText(csvFile.FullName);
+			var csvConfiguration = new CsvConfiguration { HasHeaderRecord = false, IgnoreBlankLines = false};
+			CsvReader = new CsvReader(_reader, csvConfiguration);
+		}
+
+		protected string[] GetNextCsvRowValues()
+		{
+			// get values from row
+			if (!CsvReader.Read())
+				return null;
+
+			// put all the values from this row into an array
+			var values = new List<string>();
+			var index = 0;
+			string value;
+			while (CsvReader.TryGetField(index, out value))
+			{
+				values.Add(value);
+				index++;
+			}
+			return values.ToArray();
+		}
+
+		public void Dispose()
+		{
+			_reader.Dispose();
+		}
+	}
+}