72 lines
1.6 KiB
C++
72 lines
1.6 KiB
C++
#include <string>
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#include <vector>
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#include <iostream>
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#include <fstream>
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std::vector<std::string> Tokenise(std::string csvLine, char separator)
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{
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std::vector<std::string> tokens;
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signed int start, end;
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std::string token;
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start = csvLine.find_first_not_of(separator, 0);
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do
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{
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end = csvLine.find_first_of(separator, start);
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if(start == csvLine.length() || start == end) break;
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if(end >= 0)
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token = csvLine.substr(start, end - start);
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else
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token = csvLine.substr(start, csvLine.length() - start);
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tokens.push_back(token);
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start = end + 1;
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} while (end > 0);
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return tokens;
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}
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int main()
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{
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std::string filename = "20200317.csv";
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std::string line;
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std::ifstream csvFile{filename};
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std::vector<std::string> tokens;
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if(csvFile.is_open())
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{
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std::cout << "File open" << std::endl;
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while(std::getline(csvFile, line))
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{
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std::cout << "Read line: " << line << std::endl;
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tokens = Tokenise(line, ',');
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if(tokens.size() != 5) //bad
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{
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std::cout << "Bad line" << std::endl;
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continue;
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}
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double price{};
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double amount{};
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// We checked and we have 5 tokens
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try
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{
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price = std::stod(tokens[3]);
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amount = std::stod(tokens[4]);
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std::cout << price << std::endl;
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std::cout << amount << std::endl;
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}
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catch(std::exception& e)
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{
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//error reading file
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std::cout << "ERROR" << std::endl;
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}
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break; // can be removed to read all lines in the csv
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}
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csvFile.close();
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}
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else
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{
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std::cout << "Could not open file" << std::endl;
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}
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return 0;
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} |