0
|
1 |
/****************************************************************************
|
|
2 |
**
|
|
3 |
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
|
|
4 |
** All rights reserved.
|
|
5 |
** Contact: Nokia Corporation (qt-info@nokia.com)
|
|
6 |
**
|
|
7 |
** This file is part of the utils of the Qt Toolkit.
|
|
8 |
**
|
|
9 |
** $QT_BEGIN_LICENSE:LGPL$
|
|
10 |
** No Commercial Usage
|
|
11 |
** This file contains pre-release code and may not be distributed.
|
|
12 |
** You may use this file in accordance with the terms and conditions
|
|
13 |
** contained in the Technology Preview License Agreement accompanying
|
|
14 |
** this package.
|
|
15 |
**
|
|
16 |
** GNU Lesser General Public License Usage
|
|
17 |
** Alternatively, this file may be used under the terms of the GNU Lesser
|
|
18 |
** General Public License version 2.1 as published by the Free Software
|
|
19 |
** Foundation and appearing in the file LICENSE.LGPL included in the
|
|
20 |
** packaging of this file. Please review the following information to
|
|
21 |
** ensure the GNU Lesser General Public License version 2.1 requirements
|
|
22 |
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
|
|
23 |
**
|
|
24 |
** In addition, as a special exception, Nokia gives you certain additional
|
|
25 |
** rights. These rights are described in the Nokia Qt LGPL Exception
|
|
26 |
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
|
|
27 |
**
|
|
28 |
** If you have questions regarding the use of this file, please contact
|
|
29 |
** Nokia at qt-info@nokia.com.
|
|
30 |
**
|
|
31 |
**
|
|
32 |
**
|
|
33 |
**
|
|
34 |
**
|
|
35 |
**
|
|
36 |
**
|
|
37 |
**
|
|
38 |
** $QT_END_LICENSE$
|
|
39 |
**
|
|
40 |
****************************************************************************/
|
|
41 |
|
|
42 |
#include <QtCore/QCoreApplication>
|
|
43 |
#include <QtCore/QFile>
|
|
44 |
#include <QtCore/QStringList>
|
|
45 |
#include <QtCore/QtDebug>
|
|
46 |
|
|
47 |
#include <cstdlib>
|
|
48 |
|
|
49 |
#include "lalr.h"
|
|
50 |
#include "dotgraph.h"
|
|
51 |
#include "parsetable.h"
|
|
52 |
#include "cppgenerator.h"
|
|
53 |
#include "recognizer.h"
|
|
54 |
|
|
55 |
#define QLALR_NO_DEBUG_TABLE
|
|
56 |
#define QLALR_NO_DEBUG_DOT
|
|
57 |
|
|
58 |
static void help_me ()
|
|
59 |
{
|
|
60 |
qerr << "Usage: qlalr [options] [input file name]" << endl
|
|
61 |
<< endl
|
|
62 |
<< " --help, -h\t\tdisplay this help and exit" << endl
|
|
63 |
<< " --verbose, -v\t\tverbose output" << endl
|
|
64 |
<< " --no-debug\t\tno debug information" << endl
|
|
65 |
<< " --no-lines\t\tno #line directives" << endl
|
|
66 |
<< " --dot\t\t\tgenerate a graph" << endl
|
|
67 |
<< " --troll\t\tadd the Trolltech copyright header" << endl
|
|
68 |
<< endl;
|
|
69 |
exit (0);
|
|
70 |
}
|
|
71 |
|
|
72 |
int main (int argc, char *argv[])
|
|
73 |
{
|
|
74 |
QCoreApplication app (argc, argv);
|
|
75 |
|
|
76 |
bool generate_dot = false;
|
|
77 |
bool generate_report = false;
|
|
78 |
bool no_lines = false;
|
|
79 |
bool debug_info = true;
|
|
80 |
bool troll_copyright = false;
|
|
81 |
QString file_name = 0;
|
|
82 |
|
|
83 |
QStringList args = app.arguments ();
|
|
84 |
args.removeFirst ();
|
|
85 |
|
|
86 |
foreach (QString arg, args)
|
|
87 |
{
|
|
88 |
if (arg == QLatin1String ("-h") || arg == QLatin1String ("--help"))
|
|
89 |
help_me ();
|
|
90 |
|
|
91 |
else if (arg == QLatin1String ("-v") || arg == QLatin1String ("--verbose"))
|
|
92 |
generate_report = true;
|
|
93 |
|
|
94 |
else if (arg == QLatin1String ("--dot"))
|
|
95 |
generate_dot = true;
|
|
96 |
|
|
97 |
else if (arg == QLatin1String ("--no-lines"))
|
|
98 |
no_lines = true;
|
|
99 |
|
|
100 |
else if (arg == QLatin1String ("--no-debug"))
|
|
101 |
debug_info = false;
|
|
102 |
|
|
103 |
else if (arg == QLatin1String ("--troll"))
|
|
104 |
troll_copyright = true;
|
|
105 |
|
|
106 |
else if (file_name.isEmpty ())
|
|
107 |
file_name = arg;
|
|
108 |
|
|
109 |
else
|
|
110 |
qerr << "*** Warning. Ignore argument `" << arg << "'" << endl;
|
|
111 |
}
|
|
112 |
|
|
113 |
if (file_name.isEmpty ())
|
|
114 |
{
|
|
115 |
help_me ();
|
|
116 |
exit (EXIT_SUCCESS);
|
|
117 |
}
|
|
118 |
|
|
119 |
Grammar grammar;
|
|
120 |
Recognizer p (&grammar, no_lines);
|
|
121 |
|
|
122 |
if (! p.parse (file_name))
|
|
123 |
exit (EXIT_FAILURE);
|
|
124 |
|
|
125 |
if (grammar.rules.isEmpty ())
|
|
126 |
{
|
|
127 |
qerr << "*** Fatal. No rules!" << endl;
|
|
128 |
exit (EXIT_FAILURE);
|
|
129 |
}
|
|
130 |
|
|
131 |
else if (grammar.start == grammar.names.end ())
|
|
132 |
{
|
|
133 |
qerr << "*** Fatal. No start symbol!" << endl;
|
|
134 |
exit (EXIT_FAILURE);
|
|
135 |
}
|
|
136 |
|
|
137 |
grammar.buildExtendedGrammar ();
|
|
138 |
grammar.buildRuleMap ();
|
|
139 |
|
|
140 |
Automaton aut (&grammar);
|
|
141 |
aut.build ();
|
|
142 |
|
|
143 |
CppGenerator gen (p, grammar, aut, generate_report);
|
|
144 |
gen.setDebugInfo (debug_info);
|
|
145 |
gen.setCopyright (troll_copyright);
|
|
146 |
gen ();
|
|
147 |
|
|
148 |
if (generate_dot)
|
|
149 |
{
|
|
150 |
DotGraph genDotFile (qout);
|
|
151 |
genDotFile (&aut);
|
|
152 |
}
|
|
153 |
|
|
154 |
else if (generate_report)
|
|
155 |
{
|
|
156 |
ParseTable genParseTable (qout);
|
|
157 |
genParseTable(&aut);
|
|
158 |
}
|
|
159 |
|
|
160 |
return EXIT_SUCCESS;
|
|
161 |
}
|
|
162 |
|
|
163 |
QString Recognizer::expand (const QString &text) const
|
|
164 |
{
|
|
165 |
QString code = text;
|
|
166 |
|
|
167 |
if (_M_grammar->start != _M_grammar->names.end ())
|
|
168 |
{
|
|
169 |
code = code.replace (QLatin1String("$start_id"), QString::number (std::distance (_M_grammar->names.begin (), _M_grammar->start)));
|
|
170 |
code = code.replace (QLatin1String("$start"), *_M_grammar->start);
|
|
171 |
}
|
|
172 |
|
|
173 |
code = code.replace (QLatin1String("$header"), _M_grammar->table_name.toLower () + QLatin1String("_p.h"));
|
|
174 |
|
|
175 |
code = code.replace (QLatin1String("$table"), _M_grammar->table_name);
|
|
176 |
code = code.replace (QLatin1String("$parser"), _M_grammar->table_name);
|
|
177 |
|
|
178 |
if (_M_current_rule != _M_grammar->rules.end ())
|
|
179 |
{
|
|
180 |
code = code.replace (QLatin1String("$rule_number"), QString::number (std::distance (_M_grammar->rules.begin (), _M_current_rule)));
|
|
181 |
code = code.replace (QLatin1String("$rule"), *_M_current_rule->lhs);
|
|
182 |
}
|
|
183 |
|
|
184 |
return code;
|
|
185 |
}
|