SymbolTable.cc

/*
 * Copyright (C) 2003-2009 Dynare Team
 *
 * This file is part of Dynare.
 *
 * Dynare is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Dynare is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Dynare.  If not, see <http://www.gnu.org/licenses/>.
 */

#include <algorithm>
#include <sstream>

#include "SymbolTable.hh"

SymbolTable::SymbolTable() : frozen(false), size(0)
{
}

void
SymbolTable::addSymbol(const string &name, SymbolType type, const string &tex_name) throw (AlreadyDeclaredException, FrozenException)
{
  if (frozen)
    throw FrozenException();

  if (exists(name))
    {
      if (type_table[getID(name)] == type)
        throw AlreadyDeclaredException(name, true);
      else
        throw AlreadyDeclaredException(name, false);
    }

  int id = size++;

  symbol_table[name] = id;
  type_table.push_back(type);
  name_table.push_back(name);
  tex_name_table.push_back(tex_name);
}

void
SymbolTable::addSymbol(const string &name, SymbolType type) throw (AlreadyDeclaredException, FrozenException)
{
  // Construct "tex_name" by prepending an antislash to all underscores in "name"
  string tex_name = name;
  size_t pos = 0;
  while((pos = tex_name.find('_', pos)) != string::npos)
    {
      tex_name.insert(pos, "\\");
      pos += 2;
    }
  addSymbol(name, type, tex_name);
}

void
SymbolTable::freeze() throw (FrozenException)
{
  if (frozen)
    throw FrozenException();