1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
|
/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (qt-info@nokia.com)
**
** This file is part of the QLALR project on Trolltech Labs.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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 either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at qt-sales@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
<< " --troll\t\tadd the Trolltech copyright header" << 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 ("--troll"))
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.setTrollCopyright (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;
}
|
