Read characters from stream, as long as they are DNA5 characters. Skip over whitespaces.
The buffer to write to
The RecordReader to read from.
This function read Dna5-Characters and simply discards whitespaces, including newlines.
It stops on the first character that is not Dna5 and not whitespace.
0 if there was no error reading
non-zero value on errors, especially EOF_BEFORE_SUCCESS
SeqAn - Sequence Analysis Library - www.seqan.de