lib/include/includable-lexer.hh

   1 /*
   2   includable-lexer.hh -- declare
   3
   4   source file of the LilyPond music typesetter
   5
   6   (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
   7 */
   8
   9
  10 #ifndef INCLUDABLE_LEXER_HH
  11 #define INCLUDABLE_LEXER_HH
  12 #include "string.hh"
  13 #include <FlexLexer.h>
  14 #include "varray.hh"
  15 #include "fproto.hh"
  16 #include "proto.hh"
  17
  18 // GIGA urg!
  19 typedef struct yy_buffer_state *YY_BUFFER_STATE;
  20
  21 /**
  22   an yyFlexLexer child with provisions for inclusion.
  23  */
  24 class Includable_lexer : public yyFlexLexer {
  25     Array<YY_BUFFER_STATE> state_stack_;
  26 protected:
  27     bool  close_input();
  28     Array<Source_file*> include_stack_;
  29     Array<int> char_count_stack_;
  30 public:
  31     void new_input(String s,Sources*);
  32     Includable_lexer();
  33     ~Includable_lexer();
  34     void add_lexed_char(int);
  35     char const * here_ch_C();
  36 };
  37
  38
  39 #endif // INCLUDABLE_LEXER_HH