ardupilot/libraries/AP_CSVReader/AP_CSVReader.h

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2021-06-04 00:31:22 -03:00
#pragma once
// Note: term is always null-terminated so a final line with no cr/lf
// on it can still be fetched by the caller
#include <stdint.h>
class AP_CSVReader
{
public:
AP_CSVReader(uint8_t *_term, uint8_t _term_len, uint8_t _separator=',') :
separator{_separator},
term{_term},
term_len{_term_len}
{}
enum class RetCode : uint8_t {
OK,
ERROR,
TERM_DONE,
VECTOR_DONE,
};
RetCode feed(uint8_t c);
// RetCode feed(const uint8_t *buffer, uint8_t len);
private:
enum class State : uint8_t {
START_OF_START_OF_TERM = 46,
START_OF_TERM = 47,
END_OF_VECTOR_CR = 48,
IN_UNQUOTED_TERM = 49,
IN_QUOTED_TERM = 50,
END_OF_QUOTED_TERM = 51,
} state = State::START_OF_START_OF_TERM;
// term separator
const uint8_t separator;
// pointer to memory where term will be assembled
uint8_t *term;
// amount of memory term points to
const uint8_t term_len;
// offset into term for next character
uint8_t term_ofs;
void set_state(State newstate) {
state = newstate;
}
AP_CSVReader::RetCode handle_unquoted_term(uint8_t c);
AP_CSVReader::RetCode handle_quoted_term(uint8_t c);
};