C++ TextQuery::read_file方法代码示例

int main(int argc, char **argv)
{
    // open the file from which user will query words
	ifstream infile;
	if (argc < 2 || !open_file(infile, argv[1])) {
		cerr << "No input file!" << endl;
		return EXIT_FAILURE;
	}
	TextQuery tq;
	tq.read_file(infile); // builds query map
	// iterate with the user: prompt for a word to find and print results
	// loop indefinitely; the loop exit is inside the while
	while (true) {
		cout << "enter word to look for,or q to quit" << endl;
		string s;
		cin >> s;
		// stop if hit eof on input or a 'q'is entered
		if (!cin || s == "q")
			break;
        	// get the set of line numbers on which this word appears
		set<TextQuery::line_no> locs = tq.run_query(s);
		// print count and all occurrences, if any
		print_results(locs, s, tq);
	}
	return 0;
}

int main(int argc, char **argv)
{
    std::ifstream infile;

    if (2 > argc || !open_file(infile, argv[1]))
    {
        cerr << "No input file!" << endl;
        return EXIT_FAILURE;
    }

    TextQuery tq;
    tq.read_file(infile);

    while (true)
    {
        cout << "enter word to look for, or q to quit: ";
        string s;
        cin >> s;

        if (!cin || s == "q")
            break;

        set<TextQuery::line_no> locs = tq.run_query(s);
        print_results(locs, s, tq);
    }

    return EXIT_SUCCESS;
}

int main(int argc, char **argv)
{
  ifstream infile;
  if (argc < 2 || !open_file(infile,argv[1]))
  {
    cerr << "No input file!" << endl;
    return EXIT_FAILURE;
  }

  //textquery_test(infile);
  TextQuery tq;
  tq.read_file(infile);

  cout << "================================================" << endl;
  cout << "Query(\"Daddy\"):" << endl;
  query_word_test(tq,"Daddy");

  cout << "================================================" << endl;
  cout << "~Query(\"Alice\"):" << endl;
  query_not_test(tq,"Alice");

  cout << "================================================" << endl;
  cout << "Query(\"hair\") | Query(\"Alice\"):" << endl;
  query_binary_test(tq,"|");

  cout << "================================================" << endl;
  cout << "Query(\"hair\") & Query(\"Alice\"):" << endl;
  query_binary_test(tq,"&");

  cout << "================================================" << endl;
  cout << "(Query(\"fiery\") & Query(\"bird\")) | Query(\"wind\"):" << endl;
  query_mul_test(tq);
  return 0;
}

int main(int argc, char **argv)
{

    if (argc != 2) {cerr << "No input file" << endl; return -2;}

    // get a file to read from which user will query words
    ifstream infile;
    if (!open_file(infile, argv[1])) {
        cerr << "No input file!" << endl;
        return -1;
    }
    TextQuery tq;
    tq.read_file(infile);  // builds query map

    // iterate with the user: prompt for a word to find and print results
    string sought;
    do {
        cout << "enter a word against which to search the text.\n"
             << "to quit, enter a single character ==>  ";
        cin  >> sought;

        // stop if hit eof on input or single character entered
        if (!cin || sought.size() < 2) break;

        // find all the occurrences of the users requested string
        vector<TextQuery::location> locs = tq.run_query(sought);

        // report no matches
        if (locs.empty()) {
            cout << "\nSorry. There are no entries for " 
                 << sought << ".\nTry again." << endl;
            continue;
        }
    
        // if the word was found, then print count and all occurrences
        vector<TextQuery::location>::size_type size = locs.size();
        cout << "\n" << sought << " occurs " << size
             << (size == 1 ? " time:" : " times:")
             << "\n" << endl;
    
        // print each line in which the word appeared
        vector<TextQuery::location>::iterator it = locs.begin();
        while (it != locs.end()) {
            cout << "\t(line: "
                 // don't confound user with text lines starting at 0
                 << it->first + 1 << ", pos: " << it->second + 1 << ") "
                 << tq.text_line(it->first) << endl;
            ++it;
         }
    } while (!sought.empty());

    cout << "Ok, bye!" << endl;

    // debugging aid -- look at the map that was built
    tq.display_map();
    return 0;
}

int main()
{
    TextQuery tx;
	string filename="in.txt";
    tx.read_file(filename);
    tx.build_map();
    
	tx.query_word("me");
}

void EchoServer::onMessage(const TcpConnectionPtr &conn)
{
	ifstream infile;
	infile.close();
	infile.clear();
	infile.open("test.txt");
	TextQuery tq;
	tq.read_file(infile);
	string s(conn->receive());
	s.erase(s.size() - 2);
	pool_.addTask(bind(&EchoServer::compute, this, s, conn, tq));
}

int main()
{
	TextQuery tq;
	tq.read_file("test.txt");
	tq.build_map();
//	tq.debug();
	cout << "Query:" << endl;
	string word;
	while(cin >> word)
	{
		tq.query_word(word);
	}
	return 0;
}

void textquery_test(ifstream &infile)
{
  TextQuery tq;
  tq.read_file(infile);
  while (true) 
  {
    cout << "enter word to look for,or q to quit: ";
    string s;
    cin >> s;
    if (!cin || s == "q") 
      break;
    set<TextQuery::line_no> locs = tq.run_query(s);
    print_result(locs,s,tq);
  }
}

int main(int argc, char *argv[])
{
	std::string s1("the"), s2("Her"), s3("in");
	const std::string file("text.txt");;
	TextQuery tq;
	std::ifstream fin(file.c_str());
	tq.read_file(fin);
	Query q = (Query(s1) & Query(s2)) | Query(s3);
	std::set<TextQuery::line_no> set = q.eval(tq);
	typedef std::set<TextQuery::line_no>::iterator iter_stq;
	for( iter_stq iter= set.begin() ; iter != set.end() ; iter++ )
	{
		std::cout << tq.text_line(*iter) << std::endl;
	}
	return 0;
}

int main(int argc, char *argv[])
{
    TextQuery tq;
    ifstream is("luo.txt");
    tq.read_file(is);
    string str("luo");
    set<TextQuery::line_no> s_lno = tq.run_query(str);
    cout << str << " occurs " << s_lno.size() << " times" << endl;
    for(set<TextQuery::line_no>::iterator iter = s_lno.begin();
                                          iter != s_lno.end(); ++iter) {
        cout << "(line " << *iter << ") ";
        cout << tq.text_line(*iter) <<endl;
    }

    return 0;
}

int main()
{
ifstream infile("dat");
if(!infile){
cerr << "can't open the file..." << endl;
exit(0);
}
TextQuery tq;
tq.read_file(infile);
while(true){
cout << "Input the word to look for,q to exit:"<< endl;
string s;
cin >> s;
if(!cin || s == "q")
  break;
set<TextQuery::line_no> locs = tq.run_query(s);
  print_results(locs,s,tq);
}
return 0;
}