%option noyywrap
%option nounput
%{
  #include <iostream>
  #include <cstdlib>
  #include <vector>
  #include <string>
  #include "ast.hpp"
  using namespace std;
  #include "parser.tab.hpp"

%}

%%
def                   return def_token;
extern                return extern_token;
[0-9]+(\.[0-9]+)?     { yylval.d = atof(yytext); return num_token; }
[a-zA-Z][a-zA-Z0-9]*  { yylval.s = new string(yytext); return id_token; }
[+;(),*-]             return *yytext;
[\t\n ]               {  }
.  {
  cerr << "Leksicka greska: neprepoznat karakter '" << *yytext << "'" << endl;
  exit(EXIT_FAILURE);
}
%%