%option noyywrap
%option nounput
%option noinput
%{

  #include <iostream>
  #include <cstdlib>
  using namespace std;

  #include "ast.hpp"
  #include <vector>
  #include <string>
  
  #include "parser.tab.hpp"
%}


%%
"def"     return def_token;
"extern"  return extern_token;
"if"      return if_token;
"then"    return then_token;
"else"    return else_token;
"for"     return for_token;
"in"      return in_token;
"var"     return var_token;
[#].*     {  }
[a-z]+    {
  yylval.s = new string(yytext);
  return id_token;
}
[0-9]+(\.[0-9]+)? {
  yylval.d = atof(yytext);
  return num_token;
}
[()+*/;,<>=:-]  return *yytext;
[ \t\n]  {  }
. {
  cerr << "Lekscika greska: neprepoznat karakter " << *yytext << endl;
  exit(EXIT_FAILURE);
}
%%