/****************************************************************************+
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**+
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** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the utils of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:LGPL$+
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** No Commercial Usage+
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** This file contains pre-release code and may not be distributed.+
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** You may use this file in accordance with the terms and conditions+
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** contained in the Technology Preview License Agreement accompanying+
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** this package.+
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**+
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** GNU Lesser General Public License Usage+
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** Alternatively, this file may be used under the terms of the GNU Lesser+
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** General Public License version 2.1 as published by the Free Software+
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** Foundation and appearing in the file LICENSE.LGPL included in the+
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** packaging of this file.  Please review the following information to+
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** ensure the GNU Lesser General Public License version 2.1 requirements+
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
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**+
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** In addition, as a special exception, Nokia gives you certain additional+
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** rights.  These rights are described in the Nokia Qt LGPL Exception+
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
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**+
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** If you have questions regarding the use of this file, please contact+
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** Nokia at qt-info@nokia.com.+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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+
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+
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#include <QtCore/QTextStream>+
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#include "lalr.h"+
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#include "parsetable.h"+
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+
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ParseTable::ParseTable (QTextStream &o):+
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  out (o)+
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{+
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}+
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+
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void ParseTable::operator () (Automaton *aut)+
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{+
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  Grammar *g = aut->_M_grammar;+
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+
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  int rindex = 1;+
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  for (RulePointer rule = g->rules.begin (); rule != g->rules.end (); ++rule)+
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    out << rindex++ << ")\t" << *rule << endl;+
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  out << endl << endl;+
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+
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  int index = 0;+
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  for (StatePointer state = aut->states.begin (); state != aut->states.end (); ++state)+
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    {+
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      out << "state " << index++ << endl << endl;+
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+
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      for (ItemPointer item = state->kernel.begin (); item != state->kernel.end (); ++item)+
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        {+
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          out << " *  " << *item;+
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+
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          if (item->dot == item->end_rhs ())+
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            out << " " << aut->lookaheads [item];+
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+
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          out << endl;+
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        }+
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+
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      bool first = true;+
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      for (Bundle::iterator arrow = state->bundle.begin (); arrow != state->bundle.end (); ++arrow)+
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        {+
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          if (! g->isTerminal (arrow.key ()))+
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            continue;+
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+
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          if (first)+
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            out << endl;+
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+
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          first = false;+
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+
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          out << "    " << *arrow.key () << " shift, and go to state " << std::distance (aut->states.begin (), *arrow) << endl;+
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        }+
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+
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      first = true;+
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      for (ItemPointer item = state->closure.begin (); item != state->closure.end (); ++item)+
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        {+
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          if (item->dot != item->end_rhs () || item->rule == state->defaultReduce)+
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            continue;+
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+
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          if (first)+
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            out << endl;+
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+
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          first = false;+
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+
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          foreach (Name la, aut->lookaheads.value (item))+
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            out << "    " << *la << " reduce using rule " << aut->id (item->rule) << " (" << *item->rule->lhs << ")" << endl;+
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        }+
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+
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      first = true;+
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      for (Bundle::iterator arrow = state->bundle.begin (); arrow != state->bundle.end (); ++arrow)+
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        {+
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          if (! g->isNonTerminal (arrow.key ()))+
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            continue;+
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+
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          if (first)+
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            out << endl;+
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+
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          first = false;+
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+
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          out << "    " << *arrow.key () << " go to state " << std::distance (aut->states.begin (), *arrow) << endl;+
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        }+
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+
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      if (state->defaultReduce != g->rules.end ())+
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        {+
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          out << endl+
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              << "    $default reduce using rule " << aut->id (state->defaultReduce) << " (" << *state->defaultReduce->lhs << ")" << endl;+
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        }+
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+
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      out << endl;+
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    }+
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}+
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