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