#include <iostream.h>
#include <limits.h>
#include <fstream.h>
#include "CPstring.h"

// file: format.cc; author: D. Ramm; date: 10/15/96
// file input; while with EOF to exit
// simple word processing

int main()
{
   string margin, word;
   int k;
   string filename, maring = "";
   ifstream win;
   const int LFTMARGIN = 10;
   const int COLWIDTH = 40;
   int leng, position = 0;

   cout << "Enter file name: ";
   cin >> filename;
   win.open(filename);

   for (k = 0; k < LFTMARGIN; k++)
      margin += " ";

   cout << endl << endl << margin;

   while (win >> word)
   {
      leng = word.length();
      position += leng + 1;
      if (position > COLWIDTH)
      {
         position = leng + 1;
         cout << endl << margin;
      }
      cout << word << " ";
   }
   cout << endl << endl;

   return 0;
}

Sample output:

format
Enter file name: wordfile


          It was the night before Christmas, When
          all through the house, Not a creature
          was stirring, Not even a mouse.

cat wordfile
It was the night before Christmas,
When all through the house,
Not a creature was stirring,
Not even a mouse.