readLineSlice reads a single line from r, up to lim bytes long (or unlimited if lim is less than 0), eliding the final \r or \r\n from the returned string.
(lim int64)
| 80 | // up to lim bytes long (or unlimited if lim is less than 0), |
| 81 | // eliding the final \r or \r\n from the returned string. |
| 82 | func (r *textprotoReader) readLineSlice(lim int64) ([]byte, error) { |
| 83 | var line []byte |
| 84 | |
| 85 | for { |
| 86 | l, more, err := r.readLine() |
| 87 | if err != nil { |
| 88 | return nil, err |
| 89 | } |
| 90 | if lim >= 0 && int64(len(line))+int64(len(l)) > lim { |
| 91 | return nil, errMessageTooLarge |
| 92 | } |
| 93 | // Avoid the copy if the first call produced a full line. |
| 94 | if line == nil && !more { |
| 95 | return l, nil |
| 96 | } |
| 97 | line = append(line, l...) |
| 98 | if !more { |
| 99 | break |
| 100 | } |
| 101 | } |
| 102 | return line, nil |
| 103 | } |
| 104 | |
| 105 | // trim returns s with leading and trailing spaces and tabs removed. |
| 106 | // It does not assume Unicode or UTF-8. |
no outgoing calls
no test coverage detected