gistfile1.txt

#include <iostream>
#include <string>
#include <regex>

int main() {
    std::regex pattern(R"((\d+) #(.+)# (\d+) ([\d.]+))");
    
    std::string line = "83 #Electric Sander# 7 57.00";

    // imagine that's inside the while() loop
        std::smatch match;
        std::regex_match(line, match, pattern);
        
        int number = std::stoi(match[1]);
        std::string name = match[2];
        int quantity = std::stoi(match[3]);
        double price = std::stod(match[4]);
        
        std::cout << number << '\n' << name << '\n' << quantity << '\n' << price << '\n';
}