The purpose of this assignment is to make sure that you know how to write a prog

Question

The purpose of this assignment is to make sure that you know how to write a program that uses files and file processing. The program also contains functions and does input, output, flow of control and/or calculations. PROGRAM SPECIFICATION For the assignment, we will write a program that reads a file of information pertaining to a Farmer's Market. The file contains the names of various farms participating in a Farmer's Market. The program should create a file object for input, read the data, perform some calculations, create a report, and then rewrite the information to a new output file The format of the file is as follows: Field or data item in the file Data type String of characters Integer Notes Farm name This could end with a comma Count of item Number of items Item String Name of the item Item price Float or double Unit cost of each item

Explanation / Answer

#include <iostream>
#include <fstream>
#include <string>
#include <vector>
#include <sstream>
#include <cstdlib>

using namespace std;

vector<string> split(string str, char delim) {
vector<string> queue;
stringstream sstream(str); // Turn the string into a stream.
string tok;

while(getline(sstream, tok, delim)) {
queue.push_back(tok);
}

return queue;
}

string trim(string str) {
stringstream ss;
ss << str;
string s;
string out;

while(ss >> s) {

out+=(s+' ');
}
return out.substr(0, out.length()-1);
}

int main (int argc, char *args[]) {
string line;
ifstream inFile (args[1]); // Give input file on command line at first arguement.
ofstream outFile;
outFile.open ("output.txt");
if (inFile.is_open())
{
while ( getline (inFile,line) )
{
vector<string> record = split(line, ','); // Get name
vector<string> item = split(trim(record[1]), ' '); //Get items
  
string report = record[0] + ": " + item[0] + " " + item[1] + " @ " + item[2] +
" each totalling $";
cout << report;
cout << atof (item[2].c_str()) * atof (item[0].c_str()) << ' '; // Report log to the command line
outFile << report << atof (item[2].c_str()) * atof (item[0].c_str()) << ' '; // Writing into the output file
}
  
inFile.close();
outFile.close();
}

else cout << "Can't open file";

return 0;
}

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