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/*
Copyright (C) 2021-2024 Selwin van Dijk
This file is part of signalbackup-tools.
signalbackup-tools is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
signalbackup-tools is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with signalbackup-tools. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef CSVREADER_H_
#define CSVREADER_H_
#include <fstream>
#include <string>
#include <vector>
#include "../logger/logger.h"
class CSVReader
{
private:
enum class CSVState
{
UNQUOTEDFIELD,
QUOTEDFIELD,
QUOTEDQUOTE
};
std::ifstream d_csvfile;
std::vector<std::vector<std::string>> d_results;
bool d_ok;
unsigned int d_fields; // an extra check
public:
inline explicit CSVReader(std::string const &filename);
inline bool ok() const;
inline size_t fields() const;
inline size_t rows() const;
inline std::string const &get(int field, int row) const;
inline std::string const &getFieldName(int row) const;
private:
bool read();
CSVState readRow(std::string const &row, CSVState laststate);
};
inline CSVReader::CSVReader(std::string const &filename)
:
d_csvfile(filename),
d_ok(false),
d_fields(0)
{
if (d_csvfile.is_open())
d_ok = read();
else
Logger::error("Opening file '", filename, "' for reading.");
}
inline bool CSVReader::ok() const
{
return d_ok;
}
inline size_t CSVReader::fields() const
{
return d_results.size() ? d_results[0].size() : 0;
}
inline size_t CSVReader::rows() const
{
return d_results.size() - 1;
}
inline std::string const &CSVReader::get(int field, int row) const
{
return d_results[row + 1][field];
}
inline std::string const &CSVReader::getFieldName(int field) const
{
return d_results[0][field];
}
#endif
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