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ConfigFile.h

/*
 *  File: ConfigFile.h
 *
 *  Author:     Jacob Dekel
 *  Created on: Aug 7, 2009
 *
 *  Copyright (c) 2009 Jacob Dekel
 *  $Id: ConfigFile.h 34 2009-11-07 06:15:58Z jacob $
 *
 *    This object manages the configuration file
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program 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 General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

#ifndef CONFIG_FILE
#define CONFIG_FILE

#include "SystemConfigLine.h"
#include "DeviceConfigLine.h"

#include <string>
#include <vector>

typedef std::vector<ConfigLine> FileArray;
#define MAX_CONFIG_LINE 512

00039 struct SynonymTableEntry
{
    std::string keyword1;
    std::string keyword2;
};

class ConfigFile
{
public:
      ConfigFile(const std::string& fileName);
      virtual ~ConfigFile();

      void                    initialize();
      const std::string&      getFileName() const;
    SystemConfigLine    * operator[] (int index) const;
    DeviceConfigLine    * getDevice(int index) const;
    DeviceConfigLine    * getDevice(const std::string& devno) const;
    DeviceConfigLine    * findFirstDeviceByType(const char * type) const;
    bool                      write(const std::string& fileName);
    bool                      write();
    int                       size() const;
    void                      addNonDev(SystemConfigLine * configLine);
    void                      addDev(DeviceConfigLine * configLine);
    void                      appendNewLines();
    const                     ConfigLine * locateLine(const std::string& keyword, bool synonyms=true);
    void                      deleteLine(int index);
    inline int                getLastSys() { return mLastSys; };
    bool                      changed();
    inline bool         isNew() const {return mNewConfig;};
    void                      setNew(bool newVal);

private:
  std::string                                   mFileName;
  FileArray                                     mFileArray;
  std::vector<SystemConfigLine>     mNewLines;
  std::vector<DeviceConfigLine>     mNewDeviceLines;
  static struct SynonymTableEntry   mSynonyms[];

  int       mLastSys;            // last line before device statements
  bool      mChanged;           // updates were done to file which were not saved yet
  bool      mNewConfig;          // never saved
  static const char *configTemplate[];  // template for new config file
  int       templateCounter;     // line number to read from template

  void openTemplate();
  char * getNextLine(char * buff, int len, FILE * f);
};

#endif

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