/****************************************************************************+
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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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#include <QtCore/QCoreApplication>+
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#include <QtCore/QFile>+
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#include <QtCore/QStringList>+
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#include <QtCore/QtDebug>+
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+
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#include <cstdlib>+
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+
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#include "lalr.h"+
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#include "dotgraph.h"+
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#include "parsetable.h"+
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#include "cppgenerator.h"+
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#include "recognizer.h"+
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+
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#define QLALR_NO_DEBUG_TABLE+
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#define QLALR_NO_DEBUG_DOT+
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+
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static void help_me ()+
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{+
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  qerr << "Usage: qlalr [options] [input file name]" << endl+
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       << endl+
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       << "  --help, -h\t\tdisplay this help and exit" << endl+
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       << "  --verbose, -v\t\tverbose output" << endl+
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       << "  --no-debug\t\tno debug information" << endl+
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       << "  --no-lines\t\tno #line directives" << endl+
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       << "  --dot\t\t\tgenerate a graph" << endl+
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       << "  --qt\t\tadd the Qt copyright header and Qt-specific types and macros" << endl+
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       << endl;+
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  exit (0);+
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}+
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+
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int main (int argc, char *argv[])+
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{+
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  QCoreApplication app (argc, argv);+
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+
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  bool generate_dot = false;+
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  bool generate_report = false;+
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  bool no_lines = false;+
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  bool debug_info = true;+
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  bool troll_copyright = false;+
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  QString file_name = 0;+
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+
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  QStringList args = app.arguments ();+
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  args.removeFirst ();+
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+
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  foreach (QString arg, args)+
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    {+
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      if (arg == QLatin1String ("-h") || arg == QLatin1String ("--help"))+
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        help_me ();+
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+
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      else if (arg == QLatin1String ("-v") || arg == QLatin1String ("--verbose"))+
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        generate_report = true;+
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+
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      else if (arg == QLatin1String ("--dot"))+
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        generate_dot = true;+
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+
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      else if (arg == QLatin1String ("--no-lines"))+
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        no_lines = true;+
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+
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      else if (arg == QLatin1String ("--no-debug"))+
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        debug_info = false;+
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+
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      else if (arg == QLatin1String ("--qt"))+
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        troll_copyright = true;+
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+
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      else if (file_name.isEmpty ())+
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	file_name = arg;+
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+
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      else+
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        qerr << "*** Warning. Ignore argument `" << arg << "'" << endl;+
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    }+
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+
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  if (file_name.isEmpty ())+
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    {+
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      help_me ();+
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      exit (EXIT_SUCCESS);+
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    }+
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+
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  Grammar grammar;+
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  Recognizer p (&grammar, no_lines);+
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+
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  if (! p.parse (file_name))+
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    exit (EXIT_FAILURE);+
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+
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  if (grammar.rules.isEmpty ())+
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    {+
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      qerr << "*** Fatal. No rules!" << endl;+
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      exit (EXIT_FAILURE);+
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    }+
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+
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  else if (grammar.start == grammar.names.end ())+
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    {+
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      qerr << "*** Fatal. No start symbol!" << endl;+
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      exit (EXIT_FAILURE);+
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    }+
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+
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  grammar.buildExtendedGrammar ();+
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  grammar.buildRuleMap ();+
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+
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  Automaton aut (&grammar);+
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  aut.build ();+
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+
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  CppGenerator gen (p, grammar, aut, generate_report);+
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  gen.setDebugInfo (debug_info);+
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  gen.setCopyright (troll_copyright);+
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  gen ();+
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+
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  if (generate_dot)+
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    {+
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      DotGraph genDotFile (qout);+
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      genDotFile (&aut);+
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    }+
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+
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  else if (generate_report)+
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    {+
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      ParseTable genParseTable (qout);+
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      genParseTable(&aut);+
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    }+
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+
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  return EXIT_SUCCESS;+
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}+
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+
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QString Recognizer::expand (const QString &text) const+
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{+
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  QString code = text;+
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+
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  if (_M_grammar->start != _M_grammar->names.end ())+
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    {+
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      code = code.replace (QLatin1String("$start_id"), QString::number (std::distance (_M_grammar->names.begin (), _M_grammar->start)));+
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      code = code.replace (QLatin1String("$start"), *_M_grammar->start);+
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    }+
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+
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  code = code.replace (QLatin1String("$header"), _M_grammar->table_name.toLower () + QLatin1String("_p.h"));+
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+
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  code = code.replace (QLatin1String("$table"), _M_grammar->table_name);+
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  code = code.replace (QLatin1String("$parser"), _M_grammar->table_name);+
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+
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  if (_M_current_rule != _M_grammar->rules.end ())+
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    {+
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      code = code.replace (QLatin1String("$rule_number"), QString::number (std::distance (_M_grammar->rules.begin (), _M_current_rule)));+
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      code = code.replace (QLatin1String("$rule"), *_M_current_rule->lhs);+
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    }+
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+
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  return code;+
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}+
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