Reference no: EM13168165

need to make a string matching program that takes input from a text file and outputs that match (if there is one) asked from the user. i have done this part , the only problem is that , with the output match , i also need to print some words before and after the actual match , like you would search in google and it gives you the results , with extra details ....  how could i do that sort of searching?

here is my program ..

 

#include <iostream>

#include <string>

#include <fstream>

 

using namespace std;

 

int main()

{

    ifstream myfile ("text.txt");

    string line;

    int offset;

    string tosearch;

 

    cout<< "Enter the word to be searched from the text file" << endl;

    cin>> tosearch;

 

        while (!myfile.eof())

        {

            getline(myfile,line);

            if (offset = line.find(tosearch, 0) != string::npos)

            {

                cout << "The word has been found"<< endl;

 

            }

        }

 

    cin.get();

    return 0;

 

}