lily/include/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
  24 struct Lexer_prefs {
  25     int default_duration, default_dots, default_octave_i_;
  26     int default_plet_type, default_plet_dur;
  27     String textstyle_str_;
  28
  29     bool last_duration_mode ;
  30
  31     Lexer_prefs();
  32     Moment plet_mom();
  33     void set_default_duration(int *);
  34     void set_last_duration(int n);
  35     void set_duration_mode(String s);
  36     void get_default_duration(int *);
  37     void set_plet(int,int);
  38 };
  39
  40 /// lexer with provisions for include files.
  41 struct My_flex_lexer : yyFlexLexer {
  42     Lexer_prefs prefs;
  43
  44     Array<Input_file*> include_stack_;
  45     Assoc<String, Identifier*> *identifier_assoc_p_;
  46     Keyword_table * keytable_p_;
  47     int errorlevel_i_;
  48
  49     /* *************** */
  50
  51     char const* here_ch_c_l();
  52     int lookup_keyword(String);
  53     void lookup_notename(int &large, int &small, String s);
  54     void LexerError(const char *);
  55     String spot() const;
  56     Identifier*lookup_identifier(String s);
  57     My_flex_lexer();
  58     void add_identifier(Identifier*i);
  59     ~My_flex_lexer();
  60     void new_input(String s);
  61     bool  close_input();
  62     int yylex();
  63     void print_declarations() const;
  64 };
  65
  66 extern My_flex_lexer *lexer;
  67
  68 #endif