From 8df9cac185c49d3fa452cf7666a18c1cb137bbcd Mon Sep 17 00:00:00 2001
From: "joshua.b" <joshua.b@virtualitics.com>
Date: Tue, 14 Mar 2023 17:58:38 -0700
Subject: [PATCH] Added the option to make header parsing case-sensitive.

---
 code/LumenWorks.Framework.IO/Csv/CsvReader.cs | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/code/LumenWorks.Framework.IO/Csv/CsvReader.cs b/code/LumenWorks.Framework.IO/Csv/CsvReader.cs
index bbe8ff9..1d2ac9e 100644
--- a/code/LumenWorks.Framework.IO/Csv/CsvReader.cs
+++ b/code/LumenWorks.Framework.IO/Csv/CsvReader.cs
@@ -1418,9 +1418,12 @@ public bool ReadNextRecord()
         /// Indicates if the reader will skip directly to the next line without parsing the current one. 
         /// To be used when an error occurs.
         /// </param>
+        /// <param name="caseSensitiveHeaders">
+        /// Indicates if the reader should be case-sensitive when parsing headers.
+        /// </param>
         /// <returns><see langword="true"/> if a record has been successfully reads; otherwise, <see langword="false"/>.</returns>
         /// <exception cref="T:System.ComponentModel.ObjectDisposedException">The instance has been disposed of.</exception>
-        protected virtual bool ReadNextRecord(bool onlyReadHeaders, bool skipToNextLine)
+        protected virtual bool ReadNextRecord(bool onlyReadHeaders, bool skipToNextLine, bool caseSensitiveHeaders = false)
         {
             if (_eof)
             {
@@ -1488,7 +1491,8 @@ protected virtual bool ReadNextRecord(bool onlyReadHeaders, bool skipToNextLine)
                     Array.Resize(ref _fields, _fieldCount);
                 }
 
-                _fieldHeaderIndexes = new Dictionary<string, int>(_fieldCount, StringComparer.CurrentCultureIgnoreCase);
+                var headerComparer = caseSensitiveHeaders ? StringComparer.CurrentCulture : StringComparer.CurrentCultureIgnoreCase;
+                _fieldHeaderIndexes = new Dictionary<string, int>(_fieldCount, headerComparer);
 
                 _initialized = true;