private static void ScanFile(byte[] data, ProcessCandidate processCandidate)
{
const char MARKER_START = '\n';
const int MARKER_LENGTH = 2;
var scanSkipOffset = 0;
for (var i = 0; i < data.Length - 1; i++)
{
var currentByte = data[i];
var expectedLength = data[i + 1];
if (currentByte != MARKER_START)
{
continue;
}
var y = i + scanSkipOffset;
for (; y < data.Length; y++)
{
if (data[y] == 0)
{
break;
}
}
if (y == data.Length)
{
continue;
}
var length = y - i;
if (length < MARKER_LENGTH || length - MARKER_LENGTH < expectedLength)
{
continue;
}
var protoName = Encoding.ASCII.GetString(data, i + MARKER_LENGTH, expectedLength);
if (!ProtoFileNameRegex.IsMatch(protoName))
{
continue;
}
using (var buffer = new MemoryStream(data, i, length))
{
if (!processCandidate(protoName, buffer))
{
scanSkipOffset = length + 1;
i -= 1;
}
else
{
i = y;
scanSkipOffset = 0;
}
}
}
}
public static void ScanFile(string fileName, ProcessCandidate processCandidate)
{
ScanFile(File.ReadAllBytes(fileName), processCandidate);
}
