plain-text-reader.hpp

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#ifndef OPENEV_READERS_PLAIN_TEXT_READER_HPP
#define OPENEV_READERS_PLAIN_TEXT_READER_HPP
 
#include "openev/readers/abstract-reader.hpp"
#include <cstddef>
#include <fstream>
#include <stdint.h>
#include <string>
 
namespace ev {
constexpr bool USING_PLAIN_TEXT_READER_HPP = true;
 
enum PlainTextReaderColumns : uint8_t {
  TXYP,
  XYTP,
  PTXY,
  PXYT
};

class PlainTextReader : public AbstractReader_ {
public:
  explicit PlainTextReader(const std::string &filename, const PlainTextReaderColumns columns = PlainTextReaderColumns::TXYP, const std::string &separator = " ", const std::size_t buffer_size = 0, const bool use_threading = false);
  ~PlainTextReader();

  PlainTextReader(const PlainTextReader &) = delete;
  PlainTextReader(PlainTextReader &&) noexcept = delete;
  PlainTextReader &operator=(const PlainTextReader &) = delete;
  PlainTextReader &operator=(PlainTextReader &&) noexcept = delete;
 
private:
  std::fstream file_;
  PlainTextReaderColumns columns_;
  char sep_char_;       // non-zero when separator is a single non-space char
  std::string sep_str_; // non-empty when separator is multi-char
 
  bool updateBuffer_() override;
};
 
} // namespace ev
 
#endif // OPENEV_READERS_PLAIN_TEXT_READER_HPP