forked from qt-creator/qt-creator
45db65e09c
modernize-* Change-Id: I3d8a79b59822f9d13f90730b770121dbf582da84 Reviewed-by: Orgad Shaneh <orgads@gmail.com>
99 lines
2.9 KiB
C++
99 lines
2.9 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of Qt Creator.
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**
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3 as published by the Free Software
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** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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**
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****************************************************************************/
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#pragma once
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#include "pythonformattoken.h"
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#include <QString>
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namespace PythonEditor {
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namespace Internal {
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/**
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* @brief The Scanner class - scans source code for highlighting only
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*/
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class Scanner
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{
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public:
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Scanner(const Scanner &other) = delete;
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void operator=(const Scanner &other) = delete;
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enum State {
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State_Default,
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State_String,
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State_MultiLineString
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};
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Scanner(const QChar *text, const int length);
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void setState(int state);
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int state() const;
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FormatToken read();
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QString value(const FormatToken& tk) const;
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private:
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FormatToken onDefaultState();
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void checkEscapeSequence(QChar quoteChar);
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FormatToken readStringLiteral(QChar quoteChar);
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FormatToken readMultiLineStringLiteral(QChar quoteChar);
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FormatToken readIdentifier();
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FormatToken readNumber();
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FormatToken readFloatNumber();
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FormatToken readComment();
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FormatToken readDoxygenComment();
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FormatToken readWhiteSpace();
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FormatToken readOperator();
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void clearState();
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void saveState(State state, QChar savedData);
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void parseState(State &state, QChar &savedData) const;
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void setAnchor() { m_markedPosition = m_position; }
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void move() { ++m_position; }
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int length() const { return m_position - m_markedPosition; }
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int anchor() const { return m_markedPosition; }
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bool isEnd() const { return m_position >= m_textLength; }
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QChar peek(int offset = 0) const
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{
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int pos = m_position + offset;
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if (pos >= m_textLength)
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return QLatin1Char('\0');
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return m_text[pos];
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}
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const QChar *m_text;
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const int m_textLength;
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int m_position = 0;
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int m_markedPosition = 0;
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int m_state;
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};
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} // namespace Internal
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} // namespace PythonEditor
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