/// <summary> /// Finds the delimiter by looking for the first line in the file and comparing chars /// </summary> /// <param name="source">The source.</param> /// <returns></returns> public static int FindDelimiter(this FileInfo source) { using (var stream = File.Open(source.FullName, FileMode.Open, FileAccess.Read, FileShare.Delete | FileShare.ReadWrite)) { using (var reader = new StreamReaderExtended(stream, Encoding.Default, true)) { if (reader.EndOfStream) return -1; do { var ch = (char)reader.Read(); // Note the following common line feed chars: // \n - UNIX \r\n - DOS \r - Mac switch (ch) { case '\r': var next = (char)reader.Peek(); //with \n is WINDOWS delimiter. Otherwise mac return next == '\n' ? 2 : 1; case '\n': return 1; } } while (!reader.EndOfStream); return -1; } } }
/// <summary> /// Finds the delimiter by looking for the first line in the file and comparing chars /// </summary> /// <param name="source">The source.</param> /// <returns></returns> public static int FindDelimiter(this FileInfo source) { using (var stream = File.Open(source.FullName, FileMode.Open, FileAccess.Read, FileShare.Delete | FileShare.ReadWrite)) { using (var reader = new StreamReaderExtended(stream, Encoding.Default, true)) { if (reader.EndOfStream) { return(-1); } do { var ch = (char)reader.Read(); // Note the following common line feed chars: // \n - UNIX \r\n - DOS \r - Mac switch (ch) { case '\r': var next = (char)reader.Peek(); //with \n is WINDOWS delimiter. Otherwise mac return(next == '\n' ? 2 : 1); case '\n': return(1); } } while (!reader.EndOfStream); return(-1); } } }