Added Utils::BraceMatcher.

Change-Id: I76676ce75bf029a13e2e848c6dd746eabc4f1d39
Reviewed-by: Leandro Melo <leandro.melo@nokia.com>

1 files changed, 74 insertions, 0 deletions

diff --git a/src/libs/utils/bracematcher.h b/src/libs/utils/bracematcher.h
new file mode 100644
index 0000000000..bcdcbccc0c
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+++ b/src/libs/utils/bracematcher.h
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+/**************************************************************************
+**
+** This file is part of Qt Creator
+**
+** Copyright (c) 2012 Konstantin Tokarev <annulen@yandex.ru>
+**
+** Contact: http://www.qt-project.org/
+**
+**
+** GNU Lesser General Public License Usage
+**
+** 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.
+**
+** Other Usage
+**
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**************************************************************************/
+
+#ifndef BRACEMATCHER_H
+#define BRACEMATCHER_H
+
+#include "utils_global.h"
+
+#include <QChar>
+#include <QSet>
+#include <QMap>
+
+QT_BEGIN_NAMESPACE
+class QString;
+class QTextCursor;
+QT_END_NAMESPACE
+
+namespace Utils {
+
+class QTCREATOR_UTILS_EXPORT BraceMatcher
+{
+public:
+    void addBraceCharPair(const QChar opening, const QChar closing);
+    void addQuoteChar(const QChar quote);
+    void addDelimiterChar(const QChar delim);
+
+    bool shouldInsertMatchingText(const QTextCursor &tc) const;
+    bool shouldInsertMatchingText(const QChar lookAhead) const;
+
+    QString insertMatchingBrace(const QTextCursor &tc, const QString &text,
+                                const QChar la, int *skippedChars) const;
+
+    bool isOpeningBrace(const QChar c) const { return m_braceChars.contains(c); }
+    bool isClosingBrace(const QChar c) const { return m_braceChars.values().contains(c); }
+    bool isQuote(const QChar c) const { return m_quoteChars.contains(c); }
+    bool isDelimiter(const QChar c) const { return m_delimiterChars.contains(c); }
+    bool isKnownChar(const QChar c) const;
+
+private:
+    QMap<QChar, QChar> m_braceChars;
+    QSet<QChar> m_quoteChars;
+    QSet<QChar> m_delimiterChars;
+};
+
+}  // namespace Utils
+
+#endif // BRACEMATCHER_H