hdr/sourcefile.hh

   1 //
   2 //  sourcefile.hh -- declare Source_file
   3 //
   4 //  copyright 1997 Jan Nieuwenhuizen <jan@digicash.com>
   5
   6 #ifndef SOURCE_FILE_HH
   7 #define SOURCE_FILE_HH
   8
   9 /// class for reading and mapping a file.
  10 class Source_file
  11 {
  12 public:
  13     /**
  14       @return path to opened file.
  15      */
  16     // jcn: ugh! filename gets changed!, why?
  17     Source_file( String& filename_str );
  18     virtual ~Source_file();
  19
  20     char const* ch_c_l();
  21     virtual String error_str( char const* pos_ch_c_l );
  22     istream* istream_l();
  23     bool in_b( char const* pos_ch_c_l );
  24     off_t length_off();
  25     virtual int line_i( char const* pos_ch_c_l );
  26     String name_str();
  27     String file_line_no_str( char const* ch_c_l );
  28
  29 private:
  30     void close();
  31     void map();
  32     void open();
  33     void unmap();
  34
  35     istream* istream_p_;
  36     int fildes_i_;
  37     String name_str_;
  38     off_t size_off_;
  39     caddr_t data_caddr_;
  40 };
  41
  42 #endif // SOURCE_FILE_HH //