/* la.h */

#include "io.h"
#include <stdio.h>

#define hash_table_size 5000

typedef enum { SKunknown, SKidentifier, SKendoffile, SKinteger, SKfloat,
               SKbegin, SKend, SKopenpar, SKclosepar, SKsemicolon,
               SKstring, SKcomma, SKopensquare, SKclosesquare, SKnull,
               FirstReservedWord, 
                  RWif, RWelse, RWwhile, RWreturn,
                     LastReservedWord,
               FirstType,
                  TYint, TYfloat, TYchar, TYvoid, TYstruct,
                     LastType,
               OPplus, OPminus, OPstar, OPdivide, OPmod,
               OPplusequal, OPminusequal, OPstarequal, OPdivideequal, OPmodequal,
               OPequal, OPdot, OParrow, OPnot, OPand, OPor, OPaddress,
               OPequalequal, OPless, OPgreater,
               OPnotequal, OPlessequal, OPgreaterequal,
               OPFplus, OPFminus, OPFstar, OPFdivide,
               OPFplusequal, OPFminusequal, OPFstarequal, OPFdivideequal,
               OPFequalequal, OPFless, OPFgreater,
               OPFnotequal, OPFlessequal, OPFgreaterequal,
             } SymbolKind;

typedef struct S { char *name;
                   SymbolKind kind;
                   void *decls;
                   struct S *next; } SymbolDescription;

typedef SymbolDescription *HashTable[hash_table_size];

extern HashTable symbol_table;
extern SymbolKind lex_kind;
extern int lex_integer;
extern float lex_float;
extern SymbolDescription *lex_symbol;
extern char lex_name[];
extern int already_got_lexeme;

void get_lexeme(void);
SymbolDescription *lookup_symbol(char *name);
void print_lexeme(FILE *f);
void test_lexical_analyser(void);
void init_lexical_analyser(void);
void print_string(FILE *f, char *s);
void print_operator(FILE *f, SymbolKind op);
void print_type_symbol(FILE *f, SymbolKind op);
void print_identifier(FILE *f, SymbolDescription *id);