csv_utility.hpp

#pragma once
#include "common.hpp"
#include "csv_format.hpp"
#include "csv_reader.hpp"
#include "data_type.hpp"
 
#include <string>
#include <type_traits>
#include <unordered_map>
 
namespace csv {
    struct CSVFileInfo {
        std::string filename;               
        std::vector<std::string> col_names; 
        char delim;                         
        size_t n_rows;                      
        size_t n_cols;                      
    };
 
    CSVReader operator ""_csv(const char*, size_t);
    CSVReader operator ""_csv_no_header(const char*, size_t);
    CSVReader parse(csv::string_view in, CSVFormat format = CSVFormat());
    CSVReader parse_no_header(csv::string_view in);
 
    std::unordered_map<std::string, DataType> csv_data_types(const std::string&);
    CSVFileInfo get_file_info(const std::string& filename);
    int get_col_pos(csv::string_view filename, csv::string_view col_name,
        const CSVFormat& format = CSVFormat::guess_csv());
}