private static void Run(string[] args)
{
long read = 0, loc = 0;
Options opts = ParseOptions(args);
byte[] previous = new byte[opts.Output.BytesPerLine];
byte[] buf = new byte[opts.Output.BytesPerLine];
bool previousIdentical = false;
Stream file;
if (opts.Files.Count == 0)
{
file = new ForwardSeekingStream(Console.OpenStandardInput());
}
else
{
file = new ConcatenatedStream(opts.Files.ToArray(), FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
}
using (file)
{
loc += file.Seek(opts.Skip, SeekOrigin.Begin);
while (opts.Length == -1 || read < opts.Length)
{
int len = file.Read(buf, 0, buf.Length);
if (!opts.Verbose && len == opts.Output.BytesPerLine && loc > opts.Skip)
{
bool identical = true;
for (int i = 0; i < opts.Output.BytesPerLine; i++)
{
if (previous[i] != buf[i])
{
identical = false;
break;
}
}
if (identical)
{
if (!previousIdentical)
{
Console.Out.WriteLine("*");
}
previousIdentical = true;
read += len;
loc += opts.Output.BytesPerLine;
continue;
}
}
previousIdentical = false;
Console.Out.Write(String.Format("{0,8:x8}", loc));
if (len == 0)
{
break;
}
int writelen = (opts.Length >= 0) ? (int)Math.Min(opts.Length - read, len) : len;
Console.Out.WriteLine(opts.Output.FormatLine(buf, writelen));
read += len;
loc += len;
Array.Copy(buf, previous, len);
}
file.Close();
}
}
private static void Run(string[] args)
{
long read = 0, loc = 0;
Options opts = ParseOptions(args);
byte[] previous = new byte[opts.Output.BytesPerLine];
byte[] buf = new byte[opts.Output.BytesPerLine];
bool previousIdentical = false;
Stream file;
if (opts.Files.Count == 0)
{
file = new ForwardSeekingStream(Console.OpenStandardInput());
}
else
{
file = new ConcatenatedStream(opts.Files.ToArray(), FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
}
using (file)
{
loc += file.Seek(opts.Skip, SeekOrigin.Begin);
while (opts.Length == -1 || read < opts.Length)
{
int len = file.Read(buf, 0, buf.Length);
if (!opts.Verbose && len == opts.Output.BytesPerLine && loc > opts.Skip)
{
bool identical = true;
for (int i = 0; i < opts.Output.BytesPerLine; i++)
{
if (previous[i] != buf[i])
{
identical = false;
break;
}
}
if (identical)
{
if (!previousIdentical)
{
Console.Out.WriteLine("*");
}
previousIdentical = true;
read += len;
loc += opts.Output.BytesPerLine;
continue;
}
}
previousIdentical = false;
Console.Out.Write(String.Format("{0,8:x8}", loc));
if (len == 0)
{
break;
}
int writelen = (opts.Length >= 0) ? (int)Math.Min(opts.Length - read, len) : len;
Console.Out.WriteLine(opts.Output.FormatLine(buf, writelen));
read += len;
loc += len;
Array.Copy(buf, previous, len);
}
file.Close();
}
}