smartbuffer.h

// Copyright 2011-2013 Kevin Cox

/*******************************************************************************
*                                                                              *
*  This software is provided 'as-is', without any express or implied           *
*  warranty. In no event will the authors be held liable for any damages       *
*  arising from the use of this software.                                      *
*                                                                              *
*  Permission is granted to anyone to use this software for any purpose,       *
*  including commercial applications, and to alter it and redistribute it      *
*  freely, subject to the following restrictions:                              *
*                                                                              *
*  1. The origin of this software must not be misrepresented; you must not     *
*     claim that you wrote the original software. If you use this software in  *
*     a product, an acknowledgment in the product documentation would be       *
*     appreciated but is not required.                                         *
*                                                                              *
*  2. Altered source versions must be plainly marked as such, and must not be  *
*     misrepresented as being the original software.                           *
*                                                                              *
*  3. This notice may not be removed or altered from any source distribution.  *                                                           *
*                                                                              *
*******************************************************************************/

#ifndef SMARTBUFFER_H
#define SMARTBUFFER_H

#include <QVector>
#include <QDebug>
#include <QFile>

#include "buffer.h"

class SmartBuffer: public Buffer
{
public:
	struct Position {
		QString file;
		uint line;
		uint column;

		bool eof;

		Position(QString file = "", uint line = 0, uint col = 0, bool eof = false);
		int operator ==(const Position &p) const;
	};

private:
	QVector<Position> posindex;
	QString fname;

	void init();
public:
	SmartBuffer(Buffer b, QString file = "");
	SmartBuffer(QFile *file);

	Position position();

	void consumeWhitespace();
};

QDebug operator<<(QDebug dbg, const SmartBuffer::Position &p);

#endif // SMARTBUFFER_H