// Retrieve a line from the history.
func GetHistory(i int) string {
e := C.history_get(C.int(i + 1))
if e == nil {
return ""
}
return C.GoString(e.line)
}
// GetHistory returns the history entry at position index, starting from 0.
// If there is no entry there, or if index is greater than the history length, return an error.
// (See history_get http://cnswww.cns.cwru.edu/php/chet/readline/history.html#IDX17)
func GetHistory(index int32) (string, error) {
length := HistoryLength()
if index < 0 {
index += length
}
if index < 0 || index >= length {
return "", fmt.Errorf("invalid index %d", index)
}
index += HistoryBase() // TODO
entry := C.history_get(C.int(index))
if entry == nil {
return "", fmt.Errorf("invalid index %d", index)
}
return C.GoString(entry.line), nil
}