// StringTab class implementation file
// by CMB
// created 8/04
//   see header file for interface documentation
//   header file also has change history

#include "StringTab.h"


Symbol *StringTab::addString(string newId) {

  Symbol *theSym;
  StrTabMap::iterator itemIter = tab.find(newId);
  
  if (itemIter == tab.end()) {  // if not already there

    theSym = new Symbol(newId);
    tab.insert(StrTabMap::value_type(newId, theSym));

  }
  else {
    theSym = (*itemIter).second;
  }
  
  return theSym;

}

void StringTab::dumpStringTab(ostream &o)
{
  StrTabMap::const_iterator iter = tab.begin();

  while (iter != tab.end()) {

    o << iter->second->getName() << endl;
    iter++;

  }
  
}


// used in function below
ostream& operator<<(ostream& o, const Symbol& symbol) 
{
  return o << symbol.getName();
}


ostream& operator<<(ostream& o, const Symbol *symPtr)
{
  return o << *symPtr;
}