#include "stdstuff.h"
#include "VarTreeNode.h"


void realMain () {

  String2002 str;
  VarTreeNode *root;

  for (;;) {

    cout << "\nEnter a variable (STOP to terminate).\n: ";
    cin >> str;

    if (str.isEqualCaseInsensitive("STOP")) return;

    cout << endl; // space the output

    if ((root = createVarTree (str)) == NULL) {
      cout << "That is not a valid variable.\n";
    } else {
      cout << "The variable is valid.  Its form is ";
      outputVariable(root);
      cout << ".\n";
      deleteVarTree (root);

    }

  }

}



int main () {

  try {

    realMain ();

  }
  catch (exception &e) { // catches all uncaught exceptions

    cout << "\nException <" << e.what() << "> occurred.\n";

  }

  pause ();
  return 0;

}