TSV like PDSF ready to test

Adaptation/FileHandlers/txt/Header.cs

@@ -0,0 +1,88 @@
+using System.Text.Json.Serialization;
+
+namespace Adaptation.FileHandlers.txt;
+
+public class Header
+{
+
+    public Header(string lot,
+                  string session)
+    {
+        Lot = lot;
+        Session = session;
+    }
+
+    public string Lot { get; }
+    public string Session { get; }
+
+    internal static void ScanPast(string text, int[] i, string search)
+    {
+        int num = text.IndexOf(search, i[0]);
+        if (num > -1)
+            i[0] = num + search.Length;
+        else
+            i[0] = text.Length;
+    }
+
+    internal static string GetBefore(string text, int[] i, string search)
+    {
+        int num = text.IndexOf(search, i[0]);
+        if (num > -1)
+        {
+            string str = text.Substring(i[0], num - i[0]);
+            i[0] = num + search.Length;
+            return str.Trim();
+        }
+        string str1 = text.Substring(i[0]);
+        i[0] = text.Length;
+        return str1.Trim();
+    }
+
+    internal static string GetBefore(string text, int[] i, string search, bool trim)
+    {
+        if (trim)
+            return GetBefore(text, i, search);
+        int num = text.IndexOf(search, i[0]);
+        if (num > -1)
+        {
+            string str = text.Substring(i[0], num - i[0]);
+            i[0] = num + search.Length;
+            return str;
+        }
+        string str1 = text.Substring(i[0]);
+        i[0] = text.Length;
+        return str1;
+    }
+
+    internal static string GetToEOL(string text, int[] i) =>
+        GetBefore(text, i, "\n");
+
+    internal static string GetToEOL(string text, int[] i, bool trim)
+    {
+        if (trim)
+            return GetToEOL(text, i);
+        return GetBefore(text, i, "\n", false);
+    }
+
+    internal static Header Get(Constant constant, int[] i, string text)
+    {
+        Header result;
+        string lot;
+        string session;
+        ScanPast(text, i, constant.LongWaferSummary);
+        _ = GetToEOL(text, i);
+        ScanPast(text, i, constant.Session);
+        session = GetToEOL(text, i, true);
+        ScanPast(text, i, constant.LotId);
+        lot = GetToEOL(text, i, true);
+        result = new(lot, session);
+        return result;
+    }
+
+}
+
+[JsonSourceGenerationOptions(WriteIndented = true)]
+[JsonSerializable(typeof(Header))]
+internal partial class HeaderSourceGenerationContext : JsonSerializerContext
+{
+}