lily/include/includable-lexer.hh

   1 /*
   2   includable-lexer.hh -- declare Includable_lexer
   3
   4   source file of the LilyPond music typesetter
   5
   6   (c) 1997--2007 Han-Wen Nienhuys <hanwen@xs4all.nl>
   7 */
   8
   9 #ifndef INCLUDABLE_LEXER_HH
  10 #define INCLUDABLE_LEXER_HH
  11
  12 #ifndef LEXER_CC
  13 #include <FlexLexer.h>
  14 #endif
  15
  16 #include "std-string.hh"
  17 #include "std-vector.hh"
  18 #include "lily-proto.hh"
  19
  20 // GIGA urg!
  21 typedef struct yy_buffer_state *YY_BUFFER_STATE;
  22
  23 /**
  24    an yyFlexLexer child with provisions for inclusion.
  25 */
  26 class Includable_lexer : public yyFlexLexer
  27 {
  28   vector<YY_BUFFER_STATE> state_stack_;
  29
  30 protected:
  31   bool close_input ();
  32   vector<Source_file*> include_stack_;
  33   vector<int> char_count_stack_;
  34
  35 public:
  36
  37   Includable_lexer ();
  38   ~Includable_lexer ();
  39
  40   /// store dependencies for Makefile stuff.
  41   vector<string> file_name_strings_;
  42
  43   Source_file *get_source_file () const;
  44   virtual void new_input (string s, Sources *);
  45
  46   void new_input (string name, string data, Sources *);
  47
  48   char const *here_str0 () const;
  49 };
  50
  51 #endif // INCLUDABLE_LEXER_HH