/**************************************************************************** ** ** Copyright (C) 2016 The Qt Company Ltd. ** Contact: https://www.qt.io/licensing/ ** ** This file is part of Qt Creator. ** ** 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 The Qt Company. For licensing terms ** and conditions see https://www.qt.io/terms-conditions. For further ** information use the contact form at https://www.qt.io/contact-us. ** ** GNU General Public License Usage ** Alternatively, this file may be used under the terms of the GNU ** General Public License version 3 as published by the Free Software ** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT ** included in the packaging of this file. Please review the following ** information to ensure the GNU General Public License requirements will ** be met: https://www.gnu.org/licenses/gpl-3.0.html. ** ****************************************************************************/ #pragma once #include "SimpleLexer.h" #include #include QT_FORWARD_DECLARE_CLASS(QTextCursor) namespace CPlusPlus { class CPLUSPLUS_EXPORT BackwardsScanner { enum { MAX_BLOCK_COUNT = 10 }; public: BackwardsScanner(const QTextCursor &cursor, const LanguageFeatures &languageFeatures, int maxBlockCount = MAX_BLOCK_COUNT, const QString &suffix = QString(), bool skipComments = true); int startToken() const; int startPosition() const; QString text() const; QString mid(int index) const; QString text(int index) const; QStringView textRef(int index) const; // 1-based Token LA(int index) const; // n-la token is [startToken - n] Token operator[](int index) const; // ### deprecate QString indentationString(int index) const; int startOfLine(int index) const; int startOfMatchingBrace(int index) const; int startOfBlock(int index) const; int size() const; int offset() const; static int previousBlockState(const QTextBlock &block); private: const Token &fetchToken(int tokenIndex); private: Tokens _tokens; int _offset; int _blocksTokenized; QTextBlock _block; SimpleLexer _tokenize; QString _text; int _maxBlockCount; int _startToken; }; } // namespace CPlusPlus