从文件输入中读出某些符号

Question

所以我正在建立一个读书的程序，并计算特定单词出现在其中的次数。但是，如果我试着逐字逐句地阅读＆＃34;使用空格分隔符，它也会"," "." and "double whitespaces"进入我的结果。我该如何解决这个问题？如果我不必使用运算符，它会更容易。

代码：

class Wordcounter
{
private:
    struct Data{
        string word;
        int n;
    } d;
    vector<Data> w;
public:
    friend istream&operator >>(istream&in, Wordcounter&Wordcounter){
        string junk;
        getline(in, Wordcounter.d.word, ' '); //Delimiter.


      /***************** I've tried something like this *********************
    if(Wordcounter.d.word.compare(".") != 0){
        getline(in, Wordcounter.d.word, ' ');
    } */


        return in;
    }
    friend ostream&operator << (ostream&out, Wordcounter&Wordcounter) {
        out << Wordcounter.d.word << endl;
        return out;
    }

    void read_file(string filename){
        ifstream myfile;
        myfile.open(filename);
        Wordcounter wc;
        while(myfile>>wc){
            wc.w.push_back(wc.d);
            cout << wc;
        }
        myfile.close();
    }



    Wordcounter(){
    }

    ~Wordcounter(){
    }
};