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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qbs.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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 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 Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** 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-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QBS_CHANGESET_H
#define QBS_CHANGESET_H
#include <QtCore/qstring.h>
#include <QtCore/qlist.h>
namespace QbsQmlJS {
class ChangeSet
{
public:
struct EditOp {
enum Type
{
Unset,
Replace,
Move,
Insert,
Remove,
Flip,
Copy
};
EditOp(): type(Unset), pos1(0), pos2(0), length1(0), length2(0) {}
EditOp(Type t): type(t), pos1(0), pos2(0), length1(0), length2(0) {}
Type type;
int pos1;
int pos2;
int length1;
int length2;
QString text;
};
struct Range {
Range()
: start(0), end(0) {}
Range(int start, int end)
: start(start), end(end) {}
int start;
int end;
};
public:
ChangeSet();
ChangeSet(QList<EditOp> operations);
bool empty() const;
QList<EditOp> operationList() const;
void clear();
bool replace(const Range &range, const QString &replacement);
bool remove(const Range &range);
bool move(const Range &range, int to);
bool flip(const Range &range1, const Range &range2);
bool copy(const Range &range, int to);
bool replace(int start, int end, const QString &replacement);
bool remove(int start, int end);
bool move(int start, int end, int to);
bool flip(int start1, int end1, int start2, int end2);
bool copy(int start, int end, int to);
bool insert(int pos, const QString &text);
bool hadErrors();
void apply(QString *s);
private:
// length-based API.
bool replace_helper(int pos, int length, const QString &replacement);
bool move_helper(int pos, int length, int to);
bool remove_helper(int pos, int length);
bool flip_helper(int pos1, int length1, int pos2, int length2);
bool copy_helper(int pos, int length, int to);
bool hasOverlap(int pos, int length);
QString textAt(int pos, int length);
void doReplace(const EditOp &replace, QList<EditOp> *replaceList);
void convertToReplace(const EditOp &op, QList<EditOp> *replaceList);
void apply_helper();
private:
QString *m_string;
QList<EditOp> m_operationList;
bool m_error;
};
} // namespace QbsQmlJS
#endif // Include guard.
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