Ejemplo n.º 1
0
func (v *csvTab) readRow(r *yacr.Reader) error {
	v.cols = v.cols[:0]
	for {
		if !r.Scan() {
			err := r.Err()
			v.eof = err == nil
			return err
		}
		if r.EndOfRecord() && len(r.Bytes()) == 0 { // skip empty line (or line comment)
			continue
		}
		col := r.Text()
		if len(col) >= v.maxLength {
			return fmt.Errorf("CSV row is too long (>= %d)", v.maxLength)
		}
		v.cols = append(v.cols, col)
		if len(v.cols) >= v.maxColumn {
			return fmt.Errorf("too many columns (>= %d)", v.maxColumn)
		}
		if r.EndOfRecord() {
			break
		}
	}
	return nil
}
Ejemplo n.º 2
0
func readRow(r *yacr.Reader, buffer row, pEof bool) (row, row, bool) {
	if pEof {
		return buffer, nil, pEof
	}
	var eof bool
	var v, cv []byte
	orig := buffer
	i := 0
	buffer = buffer[:0]
	for {
		if r.Scan() {
			v = r.Bytes() // must be copied
			if i < len(orig) {
				cv = orig[i]
				cv = append(cv[:0], v...)
			} else {
				cv = make([]byte, len(v))
				copy(cv, v)
			}
			buffer = append(buffer, cv)
			if r.EndOfRecord() {
				break
			}
		} else {
			eof = true
			break
		}
		i++
	}
	if err := r.Err(); err != nil {
		log.Fatalf("Error while reading file: '%s'\n", err)
	}
	if len(buffer) == 0 {
		return buffer, nil, eof
	}
	return buffer, buffer, eof
}