%option noyywrap
%option nounput
%{
#include <iostream>
#include <cstdlib>
#include "syn_tree.hpp"
  using namespace std;

#include "parser.tab.hpp"
  
%}


%%
"print"             return print_token;
"function"          return function_token;
[a-zA-Z_]+          { yylval.s = new string(yytext); return id_token; }
[0-9]+              { yylval.i = atoi(yytext); return num_token; }
"=="                return eq_token;
[-+*/<>();={},?:]   return *yytext;
[ \t\n]             {  }
.  {
  cerr << "Leksicka greska: neprepoznat karakter " << *yytext << endl;
  exit(EXIT_FAILURE);
}
%%