hdr/lexer.hh

   1 /*
   2   lexer.hh -- declare My_flex_lexer
   3
   4   source file of the LilyPond music typesetter
   5
   6   (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
   7 */
   8
   9 #ifndef LEXER_HH
  10 #define LEXER_HH
  11 #include <FlexLexer.h>
  12 #include "proto.hh"
  13 #include "fproto.hh"
  14 #include "varray.hh"
  15 #include "string.hh"
  16
  17 int yylex();
  18 void yyerror(const char *s);
  19 bool busy_parsing();
  20 void kill_lexer();
  21 void set_lexer();
  22
  23 /// lexer with provisions for include files.
  24 struct My_flex_lexer : yyFlexLexer {
  25
  26     Array<Input_file*> include_stack;
  27     Assoc<String, Identifier*> *the_id_tab;
  28     Keyword_table * keytable;
  29     Notename_tab * defaulttab;
  30     int errorlevel_i_;
  31     /* *************** */
  32     int ret_notename(int *p, String text, int octave_mod);
  33     char const* here_ch_c_l();
  34     void set(Notename_tab *n);
  35     int lookup_keyword(String);
  36     void lookup_notename(int &large, int &small, String s);
  37     void LexerError(const char *);
  38     String spot() const;
  39     Identifier*lookup_identifier(String s);
  40     My_flex_lexer();
  41     void add_identifier(Identifier*i);
  42     ~My_flex_lexer();
  43     void new_input(String s);
  44     bool  close_input();
  45     int yylex();
  46     void print_declarations() const;
  47 };
  48
  49 extern My_flex_lexer *lexer;
  50
  51 #endif