inifile.h

基于SAA7113的MPEG-4程序

// IniFile.cpp:  Implementation of the CIniFile class.
// Written by:   Adam Clauss
// Email: [e-mail]
// You may use this class/code as you wish in your programs.  Feel free to distribute it, and
// email suggested changes to me.
//
// Rewritten by: Shane Hill
// Date:         21/08/2001
// Email:        [e-mail]
// Reason:       Remove dependancy on MFC. Code should compile on any
//               platform. Tested on Windows/Linux/Irix
//////////////////////////////////////////////////////////////////////

#ifndef CIniFile_H
#define CIniFile_H


// C++ Includes
#include <string>
#include <vector>

// C Includes
#include <stdlib.h>

#define MAX_KEYNAME    128
#define MAX_VALUENAME  128
#define MAX_VALUEDATA 2048

using namespace std;

class CIniFile  
{
private:
  bool   caseInsensitive;
  string path;
  struct key {
    vector<string> names;
    vector<string> values; 
    vector<string> comments;
  };
  vector<key>    keys; 
  vector<string> names; 
  vector<string> comments;
  string CheckCase( string s) const;

public:
  enum errors{ noID = -1};
  CIniFile( string const iniPath = "");
  virtual ~CIniFile()                            {}

  // Sets whether or not keynames and valuenames should be case sensitive.
  // The default is case insensitive.
  void CaseSensitive()                           {caseInsensitive = false;}
  void CaseInsensitive()                         {caseInsensitive = true;}

  // Sets path of ini file to read and write from.
  void Path(string const newPath)                {path = newPath;}
  string Path() const                            {return path;}
  void SetPath(string const newPath)             {Path( newPath);}

  // Reads ini file specified using path.
  // Returns true if successful, false otherwise.
  bool ReadFile();
  
  // Writes data stored in class to ini file.
  bool WriteFile(); 
  
  // Deletes all stored ini data.
  void Erase();
  void Clear()                                   {Erase();}
  void Reset()                                   {Erase();}

  // Returns index of specified key, or noID if not found.
  long FindKey( string const keyname) const;

  // Returns index of specified value, in the specified key, or noID if not found.
  long FindValue( unsigned const keyID, string const valuename) const;

  // Returns number of keys currently in the ini.
  unsigned NumKeys() const                       {return names.size();}
  unsigned GetNumKeys() const                    {return NumKeys();}

  // Add a key name.
  unsigned AddKeyName( string const keyname);

  // Returns key names by index.
  string KeyName( unsigned const keyID) const;
  string GetKeyName( unsigned const keyID) const {return KeyName(keyID);}

  // Returns number of values stored for specified key.
  unsigned NumValues( unsigned const keyID);
  unsigned GetNumValues( unsigned const keyID)   {return NumValues( keyID);}
  unsigned NumValues( string const keyname);
  unsigned GetNumValues( string const keyname)   {return NumValues( keyname);}

  // Returns value name by index for a given keyname or keyID.
  string ValueName( unsigned const keyID, unsigned const valueID) const;
  string GetValueName( unsigned const keyID, unsigned const valueID) const {
    return ValueName( keyID, valueID);
  }
  string ValueName( string const keyname, unsigned const valueID) const;
  string GetValueName( string const keyname, unsigned const valueID) const {
    return ValueName( keyname, valueID);
  }

  // Gets value of [keyname] valuename =.
  // Overloaded to return string, int, and double.
  // Returns defValue if key/value not found.
  string GetValue( unsigned const keyID, unsigned const valueID, string const defValue = "") const;
  string GetValue(string const keyname, string const valuename, string const defValue = "") const; 
  int    GetValueI(string const keyname, string const valuename, int const defValue = 0) const;
  bool   GetValueB(string const keyname, string const valuename, bool const defValue = false) const {
    return bool( GetValueI( keyname, valuename, int( defValue)));
  }
  double   GetValueF(string const keyname, string const valuename, double const defValue = 0.0) const;
  // This is a variable length formatted GetValue routine. All these voids
  // are required because there is no vsscanf() like there is a vsprintf().
  // Only a maximum of 8 variable can be read.
  unsigned GetValueV( string const keyname, string const valuename, char *format,
		      void *v1 = 0, void *v2 = 0, void *v3 = 0, void *v4 = 0,
  		      void *v5 = 0, void *v6 = 0, void *v7 = 0, void *v8 = 0,
  		      void *v9 = 0, void *v10 = 0, void *v11 = 0, void *v12 = 0,
  		      void *v13 = 0, void *v14 = 0, void *v15 = 0, void *v16 = 0);

  // Sets value of [keyname] valuename =.
  // Specify the optional paramter as false (0) if you do not want it to create
  // the key if it doesn't exist. Returns true if data entered, false otherwise.
  // Overloaded to accept string, int, and double.
  bool SetValue( unsigned const keyID, unsigned const valueID, string const value);
  bool SetValue( string const keyname, string const valuename, string const value, bool const create = true);
  bool SetValueI( string const keyname, string const valuename, int const value, bool const create = true);
  bool SetValueB( string const keyname, string const valuename, bool const value, bool const create = true) {
    return SetValueI( keyname, valuename, int(value), create);
  }
  bool SetValueF( string const keyname, string const valuename, double const value, bool const create = true);
  bool SetValueV( string const keyname, string const valuename, char *format, ...);

  // Deletes specified value.
  // Returns true if value existed and deleted, false otherwise.
  bool DeleteValue( string const keyname, string const valuename);
  
  // Deletes specified key and all values contained within.
  // Returns true if key existed and deleted, false otherwise.
  bool DeleteKey(string keyname);

  // Header comment functions.
  // Header comments are those comments before the first key.
  //
  // Number of header comments.
  unsigned NumHeaderComments()                  {return comments.size();}
  // Add a header comment.
  void     HeaderComment( string const comment);
  // Return a header comment.
  string   HeaderComment( unsigned const commentID) const;
  // Delete a header comment.
  bool     DeleteHeaderComment( unsigned commentID);
  // Delete all header comments.
  void     DeleteHeaderComments()               {comments.clear();}

  // Key comment functions.
  // Key comments are those comments within a key. Any comments
  // defined within value names will be added to this list. Therefore,
  // these comments will be moved to the top of the key definition when
  // the CIniFile::WriteFile() is called.
  //
  // Number of key comments.
  unsigned NumKeyComments( unsigned const keyID) const;
  unsigned NumKeyComments( string const keyname) const;
  // Add a key comment.
  bool     KeyComment( unsigned const keyID, string const comment);
  bool     KeyComment( string const keyname, string const comment);
  // Return a key comment.
  string   KeyComment( unsigned const keyID, unsigned const commentID) const;
  string   KeyComment( string const keyname, unsigned const commentID) const;
  // Delete a key comment.
  bool     DeleteKeyComment( unsigned const keyID, unsigned const commentID);
  bool     DeleteKeyComment( string const keyname, unsigned const commentID);
  // Delete all comments for a key.
  bool     DeleteKeyComments( unsigned const keyID);
  bool     DeleteKeyComments( string const keyname);
};

#endif