%option noyywrap
%option nounput
%{

#include <iostream>
#include <cstdlib>
  using namespace std;
#include "funkcije.hpp"
  
#include "parser.tab.hpp"
  
%}

%%
"function"            return function_token;
"sin"                 return sin_token;
"cos"                 return cos_token;
[0-9]+(\.[0-9]*)?     { yylval.d = atof(yytext); return num_token; }
[a-wyz]               { yylval.c = *yytext; return id_token; }
[x=\n\"+*/()\'-\[\]]  return *yytext;
[ \t]                 {    }
.   {
  fprintf(stderr, "Leksicka greska: neprepoznat karakter '%c'\n", *yytext);
  exit(EXIT_FAILURE);
}
%%