#include "stdstuff.h"

#include "Iterator.h"


char Iterator::look() {

  if (strPtr == NULL) return EOS;
  if (index >= strPtr -> length()) {
    lastChar = EOS;
    lastIndex = strPtr -> length();;
    return EOS;
  }
  lastChar =(*strPtr)[index];
  lastIndex = index;
  return lastChar;
}


char Iterator::get() {

  char ch = look();

  if (ch != EOS) index++;
  return ch;

}


void Iterator::setup (String2002 str) {

  if (strPtr != NULL) delete strPtr;
  strPtr = new String2002(str);
  index = 0;
  // nothing examined so far
  lastChar = EOS; lastIndex = 0;

}


String2002 Iterator::getString2002 () {

  if (strPtr == NULL) {
    return String2002("");
  }
  return *strPtr;

}