Update about Manager.

PriFormat/DataItemSection.cs

@@ -0,0 +1,82 @@
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.IO;
+
+namespace PriFormat
+{
+	public class DataItemSection: Section
+	{
+		public IList<ByteSpan> DataItems { get; private set; }
+
+		internal const string Identifier = "[mrm_dataitem] \0";
+
+		internal DataItemSection (PriFile priFile)
+			: base (Identifier, priFile)
+		{
+		}
+
+		protected override bool ParseSectionContent (BinaryReader binaryReader)
+		{
+			long sectionPosition = 0;
+			SubStream sub = binaryReader.BaseStream as SubStream;
+			if (sub != null)
+				sectionPosition = sub.Position;
+
+			binaryReader.ExpectUInt32 (0);
+
+			ushort numStrings = binaryReader.ReadUInt16 ();
+			ushort numBlobs = binaryReader.ReadUInt16 ();
+			uint totalDataLength = binaryReader.ReadUInt32 ();
+
+			List<ByteSpan> dataItems = new List<ByteSpan> (numStrings + numBlobs);
+
+			long dataStartOffset =
+				binaryReader.BaseStream.Position +
+				numStrings * 2 * sizeof (ushort) +
+				numBlobs * 2 * sizeof (uint);
+
+			for (int i = 0; i < numStrings; i++)
+			{
+				ushort stringOffset = binaryReader.ReadUInt16 ();
+				ushort stringLength = binaryReader.ReadUInt16 ();
+				dataItems.Add (new ByteSpan (sectionPosition + dataStartOffset + stringOffset, stringLength));
+			}
+
+			for (int i = 0; i < numBlobs; i++)
+			{
+				uint blobOffset = binaryReader.ReadUInt32 ();
+				uint blobLength = binaryReader.ReadUInt32 ();
+				dataItems.Add (new ByteSpan (sectionPosition + dataStartOffset + blobOffset, blobLength));
+			}
+
+			DataItems = new ReadOnlyCollection<ByteSpan> (dataItems);
+
+			return true;
+		}
+		public override void Dispose ()
+		{
+			DataItems?.Clear ();
+			DataItems = null;
+			base.Dispose ();
+		}
+	}
+
+	public class DataItemRef
+	{
+		internal SectionRef<DataItemSection> dataItemSection;
+		internal int itemIndex;
+		public SectionRef<DataItemSection> DataItemSection => dataItemSection;
+		public int ItemIndex => itemIndex;
+		internal DataItemRef (SectionRef<DataItemSection> dataItemSection, int itemIndex)
+		{
+			this.dataItemSection = dataItemSection;
+			this.itemIndex = itemIndex;
+		}
+
+		public override string ToString ()
+		{
+			return string.Format ("Data item {0} in section {1}", itemIndex, dataItemSection.SectionIndex);
+		}
+	}
+}