LineReader.h

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/****************************************************************************/
// Eclipse SUMO, Simulation of Urban MObility; see https://eclipse.dev/sumo
// Copyright (C) 2001-2024 German Aerospace Center (DLR) and others.
// This program and the accompanying materials are made available under the
// terms of the Eclipse Public License 2.0 which is available at
// https://www.eclipse.org/legal/epl-2.0/
// This Source Code may also be made available under the following Secondary
// Licenses when the conditions for such availability set forth in the Eclipse
// Public License 2.0 are satisfied: GNU General Public License, version 2
// or later which is available at
// https://www.gnu.org/licenses/old-licenses/gpl-2.0-standalone.html
// SPDX-License-Identifier: EPL-2.0 OR GPL-2.0-or-later
/****************************************************************************/
// Retrieves a file linewise and reports the lines to a handler.
/****************************************************************************/
#pragma once
#include <config.h>
 
#include <string>
#include <fstream>
#include <utils/common/UtilExceptions.h>
 
 
// ===========================================================================
// class declarations
// ===========================================================================
class LineHandler;
 
 
// ===========================================================================
// class definitions
// ===========================================================================
class LineReader {
public:
    LineReader();
 
 
    LineReader(const std::string& file);
 
 
    ~LineReader();
 
 
    bool hasMore() const;
 
 
    void readAll(LineHandler& lh);
 
 
    bool readLine(LineHandler& lh);
 
 
    std::string readLine();
 
 
    void close();
 
 
    std::string getFileName() const;
 
 
    bool setFile(const std::string& file);
 
 
    unsigned long getPosition();
 
 
    void reinit();
 
 
    void setPos(unsigned long pos);
 
 
    bool good() const;
 
 
    int getLineNumber() {
        return myLinesRead;
    }
 
private:
    std::string myFileName;
 
    std::ifstream myStrm;
 
    char myBuffer[1024];
 
    std::string myStrBuffer;
 
    int myRead;
 
    int myAvailable;
 
    int myRread;
 
    int myLinesRead;
 
    int mySkipBOM;
};