diff -r 000000000000 -r 1918ee327afb util/qlalr/parsetable.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/util/qlalr/parsetable.cpp Mon Jan 11 14:00:40 2010 +0000 @@ -0,0 +1,127 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the utils of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + + +#include +#include "lalr.h" +#include "parsetable.h" + +ParseTable::ParseTable (QTextStream &o): + out (o) +{ +} + +void ParseTable::operator () (Automaton *aut) +{ + Grammar *g = aut->_M_grammar; + + int rindex = 1; + for (RulePointer rule = g->rules.begin (); rule != g->rules.end (); ++rule) + out << rindex++ << ")\t" << *rule << endl; + out << endl << endl; + + int index = 0; + for (StatePointer state = aut->states.begin (); state != aut->states.end (); ++state) + { + out << "state " << index++ << endl << endl; + + for (ItemPointer item = state->kernel.begin (); item != state->kernel.end (); ++item) + { + out << " * " << *item; + + if (item->dot == item->end_rhs ()) + out << " " << aut->lookaheads [item]; + + out << endl; + } + + bool first = true; + for (Bundle::iterator arrow = state->bundle.begin (); arrow != state->bundle.end (); ++arrow) + { + if (! g->isTerminal (arrow.key ())) + continue; + + if (first) + out << endl; + + first = false; + + out << " " << *arrow.key () << " shift, and go to state " << std::distance (aut->states.begin (), *arrow) << endl; + } + + first = true; + for (ItemPointer item = state->closure.begin (); item != state->closure.end (); ++item) + { + if (item->dot != item->end_rhs () || item->rule == state->defaultReduce) + continue; + + if (first) + out << endl; + + first = false; + + foreach (Name la, aut->lookaheads.value (item)) + out << " " << *la << " reduce using rule " << aut->id (item->rule) << " (" << *item->rule->lhs << ")" << endl; + } + + first = true; + for (Bundle::iterator arrow = state->bundle.begin (); arrow != state->bundle.end (); ++arrow) + { + if (! g->isNonTerminal (arrow.key ())) + continue; + + if (first) + out << endl; + + first = false; + + out << " " << *arrow.key () << " go to state " << std::distance (aut->states.begin (), *arrow) << endl; + } + + if (state->defaultReduce != g->rules.end ()) + { + out << endl + << " $default reduce using rule " << aut->id (state->defaultReduce) << " (" << *state->defaultReduce->lhs << ")" << endl; + } + + out << endl; + } +}