private void Parse()
{
int num = 0;
if (this.entryBlob != null && this.entryBlob.Length > 1)
{
for (;;)
{
ushort num2 = Ex12ExRenEntryParser.ParseUInt16(this.entryBlob, num);
if (num2 == 0)
{
break;
}
Ex12ExRenEntryParser.ExFolderEntry exFolderEntry = this.GetExFolderEntry(num2);
num += 2;
ushort num3 = Ex12ExRenEntryParser.ParseUInt16(this.entryBlob, num);
num += 2;
int num4 = num;
while (num - num4 < (int)num3)
{
Ex12ExRenEntryParser.ParseEntryBlock(this.entryBlob, ref num, num3, ref exFolderEntry);
}
if (num + 2 >= this.entryBlob.Length)
{
return;
}
}
return;
}
}
internal void Insert(Ex12RenEntryIdStrategy.PersistenceId persistenceId, byte[] entryId)
{
Ex12ExRenEntryParser.ExFolderEntry exFolderEntry = new Ex12ExRenEntryParser.ExFolderEntry(1, entryId, 0, 0);
if (!this.ReplaceEntryBlock(persistenceId, exFolderEntry))
{
this.InsertEntryBlock(persistenceId, exFolderEntry);
}
}
internal bool Remove(Ex12RenEntryIdStrategy.PersistenceId persistenceId)
{
Ex12ExRenEntryParser.ExFolderEntry exFolderEntry = null;
if (this.defaultFolderRenEx.TryGetValue((ushort)persistenceId, out exFolderEntry))
{
int start = exFolderEntry.Start - 4;
this.entryBlob = Ex12ExRenEntryParser.ReplaceBlob(this.entryBlob, start, exFolderEntry.End, Array <byte> .Empty);
this.defaultFolderRenEx.Clear();
this.Parse();
return(true);
}
return(false);
}
private bool ReplaceEntryBlock(Ex12RenEntryIdStrategy.PersistenceId persistenceId, Ex12ExRenEntryParser.ExFolderEntry exFolderEntry)
{
Ex12ExRenEntryParser.ExFolderEntry exFolderEntry2 = null;
if (this.defaultFolderRenEx.TryGetValue((ushort)persistenceId, out exFolderEntry2))
{
byte[] array = exFolderEntry.ToBytes();
if (array.Length == exFolderEntry2.End - exFolderEntry2.Start)
{
exFolderEntry.Start = exFolderEntry2.Start;
exFolderEntry.End = array.Length + exFolderEntry.Start;
this.defaultFolderRenEx[(ushort)persistenceId] = exFolderEntry;
this.entryBlob = Ex12ExRenEntryParser.ReplaceBlob(this.entryBlob, exFolderEntry2.Start, exFolderEntry2.End, array);
return(true);
}
}
return(false);
}
private static void ParseEntryBlock(byte[] additionalRenEntryIdsEx, ref int index, ushort blockSize, ref Ex12ExRenEntryParser.ExFolderEntry entry)
{
for (;;)
{
int start = index;
uint num = (uint)Ex12ExRenEntryParser.ParseUInt16(additionalRenEntryIdsEx, index);
index += 2;
ushort num2 = Ex12ExRenEntryParser.ParseUInt16(additionalRenEntryIdsEx, index);
index += 2;
blockSize -= 4;
if (num2 > blockSize)
{
break;
}
try
{
if (num == 1U)
{
entry.EntryId = new byte[(int)num2];
Array.Copy(additionalRenEntryIdsEx, index, entry.EntryId, 0, (int)num2);
}
else if (num == 2U)
{
entry.ElementId = Ex12ExRenEntryParser.ParseUInt16(additionalRenEntryIdsEx, index);
}
else
{
entry.Unknown = new byte[(int)num2];
Array.Copy(additionalRenEntryIdsEx, index, entry.Unknown, 0, (int)num2);
}
}
catch (ArgumentException innerException)
{
throw new FormatException("ParseEntryBlock", innerException);
}
index += (int)num2;
blockSize -= num2;
entry.Start = start;
entry.End = index;
if (blockSize <= 0)
{
return;
}
}
}
private void InsertEntryBlock(Ex12RenEntryIdStrategy.PersistenceId persistenceId, Ex12ExRenEntryParser.ExFolderEntry exFolderEntry)
{
this.defaultFolderRenEx[(ushort)persistenceId] = exFolderEntry;
int num = (this.entryBlob == null) ? 0 : this.entryBlob.Length;
int num2;
int num3;
byte[] array = exFolderEntry.ToBlock(persistenceId, out num2, out num3);
this.entryBlob = Ex12ExRenEntryParser.ReplaceBlob(this.entryBlob, 0, 0, array);
exFolderEntry.Start = num + num2;
exFolderEntry.End = num + array.Length;
}
