Copy and convert tabs to spaces. : File Utility « File « C++






  1. C++
  2. File
  3. File Utility

Copy and convert tabs to spaces.

 

#include <iostream>
#include <fstream>
using namespace std;

int main(int argc, char *argv[])
{
  if(argc!=3) {
    cout << "Usage: CPY <in> <out>\n";
    return 1;
  }

  ifstream in(argv[1]);
  if(!in) {
    cout << "Cannot open input file.\n";
    return 1;
  }

  ofstream out(argv[2]);
  if(!out) {
    cout << "Cannot open output file.\n";
    return 1;
  }

  char ch;
  int i = 8;
    
  while(!in.eof()) {
    in.get(ch); 
    if(ch=='\t') 
       for( ; i>0; i--) 
          out.put(' ');
    else out.put(ch);
    if(i == -1 || ch=='\n') i = 8;
    i--;
  }

  in.close();
  out.close();

  return 0;
}








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