lily/include/input.hh

   1 /*
   2   This file is part of LilyPond, the GNU music typesetter.
   3
   4   Copyright (C) 1997--2010 Han-Wen Nienhuys <hanwen@xs4all.nl>
   5
   6   LilyPond is free software: you can redistribute it and/or modify
   7   it under the terms of the GNU General Public License as published by
   8   the Free Software Foundation, either version 3 of the License, or
   9   (at your option) any later version.
  10
  11   LilyPond is distributed in the hope that it will be useful,
  12   but WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14   GNU General Public License for more details.
  15
  16   You should have received a copy of the GNU General Public License
  17   along with LilyPond.  If not, see <http://www.gnu.org/licenses/>.
  18 */
  19
  20 #ifndef INPUT_HH
  21 #define INPUT_HH
  22
  23 #include "lily-proto.hh"
  24
  25 /**
  26    Base class for anything that records its poisition in the parse file.
  27 */
  28 class Input
  29 {
  30   char const *start_;
  31   char const *end_;
  32   Source_file *source_file_;
  33 public:
  34   Source_file *get_source_file () const;
  35   char const *start () const;
  36   char const *end () const;
  37
  38   void set (Source_file *, char const *, char const *);
  39   void warning (string) const;
  40   void programming_error (string) const;
  41   void non_fatal_error (string) const;
  42   void error (string) const;
  43   void message (string) const;
  44   void set_spot (Input const &);
  45   void step_forward ();
  46   void set_location (Input const &, Input const &);
  47
  48   Input spot () const;
  49
  50   string location_string () const;
  51   string line_number_string () const;
  52   string file_string ()const;
  53
  54   int line_number ()const;
  55   int column_number ()const;
  56   int end_line_number ()const;
  57   int end_column_number ()const;
  58
  59   void get_counts (int *, int *, int *, int *) const;
  60
  61   Input (Input const &i);
  62   Input ();
  63 };
  64
  65
  66 #include "smobs.hh"
  67
  68 SCM make_input (Input spot);
  69 Input *unsmob_input (SCM);
  70
  71 extern Input dummy_input_global;
  72
  73 #endif // INPUT_HH