//protected abstract Task<(bool eof, FrequencyParametersPair matrix)> ReadNextMatrixAsync();
public static TouchstoneReaderCore Create(TouchstoneReader tsReader)
{
TouchstoneReaderCore readerCore = null;
string firstLine = default;
if (tsReader.MoveToNextValidLine())
{
firstLine = tsReader.ReadLineAndCount();
}
else
{
tsReader.ThrowHelper("Header", "No valid information contained in file.");
}
firstLine = firstLine.Trim();
if (firstLine[0] == Constants.OptionChar)
{
readerCore = new TouchstoneReaderCoreV1(tsReader);
}
else if (firstLine[0] == Constants.KeywordOpenChar)
{
readerCore = new TouchstoneReaderCoreV2(tsReader);
}
else
{
tsReader.ThrowHelper("Header", "The Option Line (Touchstone format 1.0) or Version Keyword (Touchstone format 2.0) must be the first" +
"non-comment and non-blank line in the file.");
}
readerCore.ReadHeader(firstLine);
return(readerCore);
}
internal TouchstoneReaderCoreV2(TouchstoneReader reader) : base(reader)
{
}
protected TouchstoneReaderCore(TouchstoneReader reader)
{
this.tsReader = reader;
}