1 files changed, 133 insertions, 0 deletions
diff --git a/src/tools/qlalr/examples/qparser/calc.g b/src/tools/qlalr/examples/qparser/calc.g
new file mode 100644
index 0000000000..394b89c964
--- /dev/null
+++ b/src/tools/qlalr/examples/qparser/calc.g
@@ -0,0 +1,133 @@
+----------------------------------------------------------------------------
+--
+-- Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
+-- Contact: http://www.qt-project.org/legal
+--
+-- This file is part of the QtCore module of the Qt Toolkit.
+--
+-- $QT_BEGIN_LICENSE:LGPL$
+-- Commercial License Usage
+-- Licensees holding valid commercial Qt licenses may use this file in
+-- accordance with the commercial license agreement provided with the
+-- Software or, alternatively, in accordance with the terms contained in
+-- a written agreement between you and Digia.  For licensing terms and
+-- conditions see http://qt.digia.com/licensing.  For further information
+-- use the contact form at http://qt.digia.com/contact-us.
+--
+-- 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, Digia gives you certain additional
+-- rights.  These rights are described in the Digia Qt LGPL Exception
+-- version 1.1, 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.
+--
+--
+-- $QT_END_LICENSE$
+--
+----------------------------------------------------------------------------
+
+%parser calc_grammar
+%decl calc_parser.h
+%impl calc_parser.cpp
+
+%token_prefix Token_
+%token number
+%token lparen
+%token rparen
+%token plus
+%token minus
+
+%start Goal
+
+/:
+#ifndef CALC_PARSER_H
+#define CALC_PARSER_H
+
+#include "qparser.h"
+#include "calc_grammar_p.h"
+
+class CalcParser: public QParser<CalcParser, $table>
+{
+public:
+  int nextToken();
+  void consumeRule(int ruleno);
+};
+
+#endif // CALC_PARSER_H
+:/
+
+
+
+
+
+/.
+#include "calc_parser.h"
+
+#include <QtDebug>
+#include <cstdlib>
+
+void CalcParser::consumeRule(int ruleno)
+  {
+    switch (ruleno) {
+./
+
+Goal: Expression ;
+/.
+case $rule_number:
+  qDebug() << "value:" << sym(1);
+  break;
+./
+
+PrimaryExpression: number ;
+PrimaryExpression: lparen Expression rparen ;
+/.
+case $rule_number:
+  sym(1) = sym (2);
+  break;
+./
+
+Expression: PrimaryExpression ;
+
+Expression: Expression plus PrimaryExpression;
+/.
+case $rule_number:
+  sym(1) += sym (3);
+  break;
+./
+
+Expression: Expression minus PrimaryExpression;
+/.
+case $rule_number:
+  sym(1) -= sym (3);
+  break;
+./
+
+
+
+/.
+    } // switch
+}
+
+#include <cstdio>
+
+int main()
+{
+  CalcParser p;
+
+  if (p.parse())
+    printf("ok\n");
+}
+./