Tokenizing string

**Ducky** · 12-31-2017

How would you cut this line in 4 parts?

"The quick brown fox jumps over the lazy dog"

Like this:

The
quick
brown
fox jumps over the lazy dog

Code:

#include <string>
#include <vector>
#include <iostream>
#include <istream>
#include <ostream>
#include <iterator>
#include <sstream>
#include <algorithm>
using namespace std;

int main()
{
    std::string str = "The quick brown fox jumps over the lazy dog";
    stringstream ss;
    string s;

    ss << str;

    for(int i=0; i<4; i++)
    {
      (getline(ss, s, ' '));
        cout << s << endl;
    }

}

I cant seem to get the "fox jumps over the lazy dog" part.

**jimblumberg** · 12-31-2017

Well since you're only looping four times what do you expect?

If you want to process the whole stringstream then perhaps a while() loop would be a better option.

Code:

#include <string>
#include <iostream>
#include <sstream>

using namespace std;

int main()
{
    std::string str;
    stringstream ss("The quick brown fox jumps over the lazy dog");

    while(ss >> str)
    {
        cout << str << endl;
    }

}

And note that you should only need three #include files for this program.

**OldGuy2** · 12-31-2017

Probably like this:

Code:

#include <string>
#include <iostream>
#include <sstream>

int main()
{
  std::string str = "The quick brown fox jumps over the lazy dog";
  std::stringstream ss(str);
  std::string s;

  for (int i = 0; i < 3; i++)
  {
    if(!std::getline(ss, s, ' ')) // in case there are less words
      break;
    std::cout << s << "\n";
  }
  if(std::getline(ss, s))
    std::cout << s;
}

**Ducky** · 12-31-2017

Originally Posted by jimblumberg

Well since you're only looping four times what do you expect?

Yes but as I stated and dont want to tokenize the whole sentence, I want to keep "fox jumps over the lazy dog" together.

**Ducky** · 12-31-2017

Originally Posted by OldGuy2

Probably like this:

Thank you, this is the solution. Happy new year, soon...

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