// Write a single sequence and return the number of bytes written and any error.
func (w *Writer) Write(s seq.Sequence) (n int, err error) {
var (
_n int
prefix = append([]byte{'\n'}, w.SeqPrefix...)
)
id, desc := s.Name(), s.Description()
header := make([]byte, 0, len(w.IDPrefix)+len(id)+len(desc)+1)
header = append(header, w.IDPrefix...)
header = append(header, id...)
if len(desc) > 0 {
header = append(header, ' ')
header = append(header, desc...)
}
n, err = w.w.Write(header)
if err != nil {
return n, err
}
for i := 0; i < s.Len(); i++ {
if i%w.Width == 0 {
_n, err = w.w.Write(prefix)
if n += _n; err != nil {
return n, err
}
}
_n, err = w.w.Write([]byte{byte(s.At(i).L)})
if n += _n; err != nil {
return n, err
}
}
_n, err = w.w.Write([]byte{'\n'})
if n += _n; err != nil {
return n, err
}
return n, nil
}
func (w *Writer) writeHeader(prefix byte, s seq.Sequence) (n int, err error) {
var _n int
n, err = w.w.Write([]byte{prefix})
if err != nil {
return
}
_n, err = io.WriteString(w.w, s.Name())
if n += _n; err != nil {
return
}
if desc := s.Description(); len(desc) != 0 {
_n, err = w.w.Write([]byte{' '})
if n += _n; err != nil {
return
}
_n, err = io.WriteString(w.w, desc)
if n += _n; err != nil {
return
}
}
_n, err = w.w.Write([]byte("\n"))
n += _n
return
}