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+/****************************************************************************
+**
+** Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the $MODULE$ of the Qt Toolkit.
+**
+** $TROLLTECH_DUAL_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QSCRIPTSYNTAXCHECKER_H
+#define QSCRIPTSYNTAXCHECKER_H
+
+//
+// W A R N I N G
+// -------------
+//
+// This file is not part of the Qt API. It exists purely as an
+// implementation detail. This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include <QtCore/qstring.h>
+
+#ifndef QT_NO_SCRIPT
+
+#include "qscriptgrammar_p.h"
+
+QT_BEGIN_NAMESPACE
+
+namespace QScript {
+
+class Lexer;
+
+class SyntaxChecker: protected QScriptGrammar
+{
+public:
+ enum State {
+ Error,
+ Intermediate,
+ Valid,
+ };
+
+ struct Result {
+ Result(State s, int ln, int col, const QString &msg)
+ : state(s), errorLineNumber(ln), errorColumnNumber(col),
+ errorMessage(msg) {}
+ State state;
+ int errorLineNumber;
+ int errorColumnNumber;
+ QString errorMessage;
+ };
+
+ SyntaxChecker();
+ ~SyntaxChecker();
+
+ Result checkSyntax(const QString &code);
+
+protected:
+ bool automatic(QScript::Lexer *lexer, int token) const;
+ inline void reallocateStack();
+
+protected:
+ int tos;
+ int stack_size;
+ int *state_stack;
+};
+
+inline void SyntaxChecker::reallocateStack()
+{
+ if (! stack_size)
+ stack_size = 128;
+ else
+ stack_size <<= 1;
+
+ state_stack = reinterpret_cast<int*> (qRealloc(state_stack, stack_size * sizeof(int)));
+}
+
+} // namespace QScript
+
+QT_END_NAMESPACE
+
+#endif // QT_NO_SCRIPT
+
+#endif