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

// file: formatwatch.cc; author: D. Ramm; date: 10/15/96
// file input; while with EOF to exit
// some word processing 
// move stats to function with reference parameters

void Watch(string word, int & wc, string w1, int & c1, string w2, int & c2)
// precondition: another word is presented in parameter word, w1 and w2
//   are words to watch for.
// postcondition: wc contains total word count word and c1 and c2 are the
//   number of times that w1 and w2 (resepctively) have been encountered.
{
   wc++;
   if (word == w1)
   {
      c1++;
   }
   if (word == w2)
   {
      c2++;
   }
}
   
int main()
{
   string margin, word, watch1, watch2;
   int k, cnt1 = 0, cnt2 = 0, wcnt = 0;
   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;

   watch1 = "I";
   watch2 = "do";

   while (win >> word)
   {
      Watch(word, wcnt, watch1, cnt1, watch2, cnt2);
      leng = word.length();
      position += leng + 1;
      if (position > COLWIDTH)
      {
         position = leng + 1;
         cout << endl << margin;
      }
      cout << word << " ";
   }
   cout << endl << endl;
   cout << "For " << wcnt << " words read from file: " << filename << endl;
   cout << "Count for \"" << watch1 << "\" was " << cnt1 << endl;
   cout << "Count for \"" << watch2 << "\" was " << cnt2 << endl;

   return 0;
}

Sample output:

formatwatch
Enter file name: words


          I wish upon a star, that someone else
          would do all of the grading that I do,
          and do it from afar. I wish I could, I
          wish I could...

For 30 words read from fie: words
Count for "I" was 6
Count for "do" was 2

cat words
I wish upon a star, that someone else would do
all of the grading that I do, and do it from afar.

I wish I could, I wish I could...