Allow specification of the comparison class used for matching columns

LINQtoCSV/CsvFileDescription.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Generic;
 using System.Globalization;
 using System.Text;
 
@@ -90,7 +91,12 @@ public int MaximumNbrExceptions
         public bool UseFieldIndexForReadingData { get; set; }
         public bool UseOutputFormatForParsingCsvValue { get; set; }
         public bool IgnoreTrailingSeparatorChar { get; set; }
-
+
+        /// <summary>
+        /// Allows for override of the string comparison strategy
+        /// </summary>
+        public IEqualityComparer<string> ColumnEqualityComparer { get; set; }
+
         /// <summary>
         /// If set to true, wil read only the fields specified as attributes, and will discard other fields in the CSV file
         /// </summary>

LINQtoCSV/FieldMapper.cs

@@ -267,7 +267,9 @@ public FieldMapper(CsvFileDescription fileDescription, string fileName, bool wri
             m_fileDescription = fileDescription;
             m_fileName = fileName;
 
-            m_NameToInfo = new Dictionary<string, TypeFieldInfo>();
+            m_NameToInfo = fileDescription.ColumnEqualityComparer != null ?
+                new Dictionary<string, TypeFieldInfo>(fileDescription.ColumnEqualityComparer) :
+                new Dictionary<string, TypeFieldInfo>();
 
             AnalyzeType(
                 typeof(T), 

TestConsoleApplication/ProductData.cs

@@ -25,7 +25,7 @@ class ProductData
         public DateTime launchTime;
 
         // Can use both fields and properties
-        [CsvColumn(FieldIndex = 4, CanBeNull = false, OutputFormat = "#,000.000")]
+        [CsvColumn(FieldIndex = 4, CanBeNull = false, OutputFormat = "#,000.000", Name = "Weight")]
         public double weight { get; set; }
 
         // Following field has no CsvColumn attribute.

TestConsoleApplication/Program.cs

@@ -29,7 +29,8 @@ static void Main(string[] args)
                 SeparatorChar = ',', // default is ','
                 FirstLineHasColumnNames = true,
                 EnforceCsvColumnAttribute = false, // default is false
-                FileCultureName = "en-US" // default is the current culture
+                FileCultureName = "en-US", // default is the current culture
+                ColumnEqualityComparer = StringComparer.CurrentCultureIgnoreCase
             };
 
             try

TestConsoleApplication/TestFiles/output_anon.csv

@@ -1,4 +1,4 @@
 Markup,InShops,ProductName
-39150.0,2/01/1985 12:00:00 AM,mouse trap
-270.060,23/05/2008 12:00:00 AM,moonbuggy
-6004.0,29/02/2004 12:00:00 AM,dog house
+39150.0,1/2/1985 12:00:00 AM,mouse trap
+270.060,5/23/2008 12:00:00 AM,moonbuggy
+6004.0,2/29/2004 12:00:00 AM,dog house