if_stream.h

00001 /*************************************************************************
00002  *              ESLA: Embeddable Scripting LAnguage
00003  *                  Copyright (C) 2003 Frantz Maerten
00004  *
00005  *   This  program  is  free  software;  you  can  redistribute it and/or
00006  *   modify  it  under  the  terms  of  the GNU General Public License as
00007  *   published  by  the Free Software Foundation; either version 2 of the
00008  *   License, or (at your option) any later version.
00009  *
00010  *   If  you modify this software, you should contact the author, include
00011  *   a  notice giving the name of the person performing the modification,
00012  *   the date of modification, and the reason for such modification.
00013  *
00014  *   Note   that   the   GNU  General  Public  License  does  not  permit
00015  *   incorporating the Software into proprietary programs.
00016  *
00017  *  Contact: Frantz Maerten
00018  *     frantz@pangea.stanford.edu
00019  *
00020  *     Dept. of Geological & Environmental Sciences
00021  *     Stanford University 
00022  *     Stanford, CA 94305-2115
00023  *     USA
00024  *************************************************************************/
00025 
00026 
00027 #ifndef INPUT_STREAM
00028 #define INPUT_STREAM
00029 
00030 #include "../esla_namespace.h"
00031 #include <string>
00032 #include <fstream>
00033 #include <iostream>
00034 
00035 BEGIN_LIB_NAMESPACE 
00036 
00037 class Logger ;
00038 
00039 class IfStream {
00040   typedef std::ifstream parent ;
00041 public:
00042   IfStream() ;
00043   IfStream(const IfStream&) ;
00044   IfStream(const std::string&) ;
00045   IfStream(const char*) ;
00046   virtual ~IfStream() ;
00047   IfStream& operator=(const IfStream&) ;
00048 
00049   IfStream& getline(char*, int size, char _delim='\n') ;
00050   int line_count() const ;
00051   const std::string& cur_line() const ;
00052   const std::string& file_name() const ;
00053   int bad() const ;
00054   int eof() ;
00055 
00056   Logger* get_logger() const ;
00057   void set_logger(Logger* log) ;
00058   void message(const std::string&, bool extra=true) const ;
00059    
00060 private:
00061   int line_count_ ;
00062   std::string cur_line_ ;
00063   std::string file_name_ ;
00064   std::ifstream* is_ ;
00065   Logger* log_ ;
00066 
00067 } ;
00068 
00069 // ---------------------------------------------------
00070 
00071 inline int IfStream::line_count() const {
00072   return line_count_ ;
00073 }
00074 
00075 inline const std::string& IfStream::cur_line() const {
00076   return cur_line_ ;
00077 }
00078 
00079 inline const std::string& IfStream::file_name() const {
00080   return file_name_ ;
00081 }
00082 
00083 END_LIB_NAMESPACE
00084 
00085 #endif