mirror of https://github.com/ArduPilot/ardupilot
59 lines
1.2 KiB
C
59 lines
1.2 KiB
C
|
#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);
|
||
|
|
};
|