internal static TextFormatInfo GetTextFormatInfo(string file)
{
var info = new TextFormatInfo();
string newLine = null;
Encoding encoding;
using (FileStream fs = File.OpenRead(file))
{
byte[] buf = new byte[1024];
int nread, i;
if ((nread = fs.Read(buf, 0, buf.Length)) <= 0)
{
return(info);
}
if (TryParse(buf, nread, out encoding))
{
i = encoding.GetPreamble().Length;
}
else
{
encoding = null;
i = 0;
}
do
{
while (i < nread)
{
if (buf[i] == '\r')
{
newLine = "\r\n";
break;
}
else if (buf[i] == '\n')
{
newLine = "\n";
break;
}
i++;
}
if (newLine == null)
{
if ((nread = fs.Read(buf, 0, buf.Length)) <= 0)
{
newLine = "\n";
break;
}
i = 0;
}
} while (newLine == null);
info.EndsWithEmptyLine = fs.Seek(-1, SeekOrigin.End) > 0 && fs.ReadByte() == (int)'\n';
info.NewLine = newLine;
info.Encoding = encoding;
return(info);
}
}