ASStreamIterator.h

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 *
 *   Copyright (C) 2006-2008 by Jim Pattee <jimp03@email.com>
 *   Copyright (C) 1998-2002 by Tal Davidson
 *   <http://www.gnu.org/licenses/lgpl-3.0.html>
 *
 *   This file is a part of Artistic Style - an indentation and
 *   reformatting tool for C, C++, C# and Java source files.
 *   <http://astyle.sourceforge.net>
 *
 *   Artistic Style is free software: you can redistribute it and/or modify
 *   it under the terms of the GNU Lesser General Public License as published
 *   by the Free Software Foundation, either version 3 of the License, or
 *   (at your option) any later version.
 *
 *   Artistic Style is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU Lesser General Public License for more details.
 *
 *   You should have received a copy of the GNU Lesser General Public License
 *   along with Artistic Style.  If not, see <http://www.gnu.org/licenses/>.
 *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 */


#ifndef ASSTREAMITERATOR_H
#define ASSTREAMITERATOR_H

#include "astyle.h"
#include <iostream>

namespace astyle
{

class ASStreamIterator : public ASSourceIterator
{
        public:
                bool checkForEmptyLine;

                // function declarations
                ASStreamIterator(istream *in);
                virtual ~ASStreamIterator();
                string nextLine(bool emptyLineWasDeleted);
                string peekNextLine();
                void peekReset();
                void saveLastInputLine();

                // inline functions
                bool compareToInputBuffer(const string &nextLine) const { return nextLine == prevBuffer; }
                const char* getOutputEOL() const { return outputEOL; }
                bool hasMoreLines() const { return !inStream->eof(); }

        private:
                istream * inStream;          // pointer to the input stream
                string buffer;         // current input line
                string prevBuffer;     // previous input line
                int eolWindows;        // number of Windows line endings (CRLF)
                int eolLinux;          // number of Linux line endings (LF)
                int eolMacOld;         // number of old Mac line endings (CR)
                int peekStart;         // starting position for peekNextLine()
                char outputEOL[4];     // output end of line char
                bool prevLineDeleted;  // the previous input line was deleted
};

/*

// typename will be istringstream for GUI and istream otherwise
//template<typename T>
class ASStreamIterator :
                        public ASSourceIterator
{
        public:
                // function declarations
                ASStreamIterator(istream *in);
                virtual ~ASStreamIterator();
                string nextLine();
                string peekNextLine();
                void peekReset();
                void saveLastInputLine();

                // inline functions
                bool compareToInputBuffer(const string &nextLine) const { return nextLine == prevBuffer; }
                const char* getOutputEOL() const { return outputEOL; }
                bool hasMoreLines() const       { return !inStream->eof(); }

        private:
                istream* inStream;          // pointer to the input stream
                string buffer;         // current input line
                string prevBuffer;     // previous input line
                int eolWindows;        // number of Windows line endings (CRLF)
                int eolLinux;          // number of Linux line endings (LF)
                int eolMacOld;         // number of old Mac line endings (CR)
                char outputEOL[4];     // output end of line char
                int peekStart;                  // starting position for peekNextLine()
};
*/
}

#endif

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