src/FDM/JSBSim/FGConfigFile.h

   1 /*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   2
   3  Header:       FGConfigFile.h
   4  Author:       Jon Berndt
   5  Date started: 03/29/00
   6
   7  ------------- Copyright (C) 1999  Jon S. Berndt (jsb@hal-pc.org) -------------
   8
   9  This program is free software; you can redistribute it and/or modify it under
  10  the terms of the GNU General Public License as published by the Free Software
  11  Foundation; either version 2 of the License, or (at your option) any later
  12  version.
  13
  14  This program is distributed in the hope that it will be useful, but WITHOUT
  15  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  16  FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
  17  details.
  18
  19  You should have received a copy of the GNU General Public License along with
  20  this program; if not, write to the Free Software Foundation, Inc., 59 Temple
  21  Place - Suite 330, Boston, MA  02111-1307, USA.
  22
  23  Further information about the GNU General Public License can also be found on
  24  the world wide web at http://www.gnu.org.
  25
  26 HISTORY
  27 --------------------------------------------------------------------------------
  28 03/29/00   JSB   Created
  29
  30 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  31 SENTRY
  32 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
  33
  34 #ifndef FGCONFIGFILE_H
  35 #define FGCONFIGFILE_H
  36
  37 /*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  38 INCLUDES
  39 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
  40
  41 #ifdef FGFS
  42 #  include <simgear/compiler.h>
  43 #  include STL_STRING
  44 #  include STL_FSTREAM
  45 #  include STL_IOSTREAM
  46    SG_USING_STD(string);
  47    SG_USING_STD(ostream);
  48    SG_USING_STD(istream);
  49    SG_USING_STD(ifstream);
  50    SG_USING_STD(cerr);
  51    SG_USING_STD(endl);
  52    SG_USING_STD(ios);
  53    SG_USING_STD(cout);
  54 #else
  55 #  include <string>
  56 #  if defined(sgi) && !defined(__GNUC__)
  57 #    include <fstream.h>
  58 #    include <iostream.h>
  59 #  else
  60 #    include <fstream>
  61 #    include <iostream>
  62      using std::ostream;
  63      using std::istream;
  64      using std::ifstream;
  65      using std::ios;
  66      using std::cerr;
  67      using std::endl;
  68      using std::cout;
  69 #  endif
  70     using std::string;
  71 #endif
  72
  73 #include "FGJSBBase.h"
  74
  75 /*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  76 DEFINITIONS
  77 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
  78
  79 #define ID_CONFIGFILE "$Id$"
  80
  81 /*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  82 FORWARD DECLARATIONS
  83 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
  84
  85 /*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  86 COMMENTS, REFERENCES, and NOTES [use "class documentation" below for API docs]
  87 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
  88
  89 /*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  90 CLASS DOCUMENTATION
  91 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
  92
  93 /** Encapsulates reading a JSBSim config file.
  94     JSBSim config files are in XML format.
  95     @author Jon S. Berndt
  96     @version $Id$
  97     @see <a href="http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/jsbsim/JSBSim/FGConfigFile.h?rev=HEAD&content-type=text/vnd.viewcvs-markup">
  98          Header File </a>
  99     @see <a href="http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/jsbsim/JSBSim/FGConfigFile.cpp?rev=HEAD&content-type=text/vnd.viewcvs-markup">
 100          Source File </a>
 101 */
 102
 103 /*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 104 CLASS DECLARATION
 105 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
 106
 107 class FGConfigFile : public FGJSBBase
 108 {
 109 public:
 110   /** Constructor
 111       @param Filename the name of the config file to be read. */
 112   FGConfigFile(string Filename);
 113   /// Destructor
 114   ~FGConfigFile();
 115
 116   /** Returns the next line from the currently open config file.
 117       Comments are bypassed and ignored.
 118       @return the next valid line from the config file OR "EOF" if end of file is
 119       reached.*/
 120   string GetNextConfigLine(void);
 121
 122   string GetCurrentLine(void) { return CurrentLine; }
 123
 124   /** Returns the value of the tag supplied.
 125       @param
 126       @return */
 127   string GetValue(string);
 128   string GetValue(void);
 129   string GetCommentString(void) {return CommentString;}
 130   string GetLineComment(void) {return LineComment;}
 131   bool IsOpen(void) {return Opened;}
 132   FGConfigFile& operator>>(double&);
 133   FGConfigFile& operator>>(int&);
 134   FGConfigFile& operator>>(string&);
 135   void ResetLineIndexToZero(void);
 136
 137 private:
 138   ifstream cfgfile;
 139   string   CurrentLine;
 140   string   CommentString;
 141   string   LineComment;
 142   bool     CommentsOn;
 143   bool     Opened;
 144   unsigned int CurrentIndex;
 145   string GetLine(void);
 146
 147   void Debug(int from);
 148 };
 149
 150 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 151 #endif
 152