func NewReader(r io.Reader) io.Reader
NewReader returns an io.Reader which decompresses bzip2 data from r. If r does not also implement io.ByteReader, the decompressor may read more data than necessary from r.
A StructuralError is returned when the bzip2 data is found to be syntactically invalid.
type StructuralError string
func (s StructuralError) Error() string