//
// Programmer:    Craig Stuart Sapp <craig@ccrma.stanford.edu>
// Creation Date: Sat Jan  2 21:40:50 PST 1999
// Last Modified: Sat Jan  2 21:40:50 PST 1999
// Filename:      /home/craig/lang/c/detab/detab.cpp
// Syntax:        C++ 
// $Smake:        g++ -O3 -o %b %f && strip %b
//

#include <iostream.h>
#include <fstream.h>


#define MAXLEN 10000


int main(int argc, char** argv) {
   int index = 0;
   char* string;
   string = new char[MAXLEN + 1];

   fstream infile(argv[1], ios::in | ios::nocreate);
   if (!infile.is_open()) {
      cerr << "Error: file " << argv[1] << " cannot be opened" << endl; 
      exit(1);
   }

   int i;
   int length;
   while (!infile.eof()) {
      infile.getline(string, MAXLEN, '\n');
      if (infile.eof()) {
         break;
      }
      length = strlen(string);
      index = 0;
      int spaces, j;
      for (i=0; i<length; i++) {
         if (string[i] != '\t') {
            cout << string[i];
            index++;
         } else {
            spaces = 8 - (index % 8);
            for (j=0; j<spaces; j++) {
               cout << ' ';
            }
            index += spaces;
         }
      }
      cout << '\n';
   }

   return 0;
}