%{
#include <string>
#include <iostream>
#include <cstdlib>
#include "izrazi.hpp"
#include "naredbe.hpp"
#include <vector>
#include <map>
  
  using namespace std;
  
  void yyerror(string s) {
    cerr << s << endl;
    exit(EXIT_FAILURE);
  }
  
  extern int yylex();
  
  map<string, int> tablica;
%}

%union {
  int vrednost;
  Izraz *i;
  vector<Naredba*> *v;
  Naredba *n;
  string *s;
}

%token ispisi_token pocetak_token kraj_token mod_token
%token <s> string_token id_token
%token <vrednost> num_token

%type <i> E
%type <v> NizNaredbi
%type <n> Blok Naredba

%left '+' '-'
%left '*' '/' mod_token
%nonassoc UMINUS

%%
Program: Blok '.' {
  $1->izvrsi();
  delete $1;
 }
;
NizNaredbi: NizNaredbi ';' Naredba {
  $$ = $1;
  $$->push_back($3);
 }
| Naredba {
  $$ = new vector<Naredba*>();
  $$->push_back($1);
 }
;
Naredba: ispisi_token '(' string_token ')' {
  $$ = new IspisStringa(*$3);
  delete $3;
 }
| ispisi_token '(' E ')' {
  $$ = new IspisIzraza($3);
 }
| Blok {
  $$ = $1;
 }
| id_token ':' '=' E {
  $$ = new Dodela(*$1, $4);
  delete $1;
  }
;
Blok: pocetak_token NizNaredbi kraj_token {
  $$ = new Blok(*$2);
  delete $2;
 }
;
E: E '+' E {
  $$ = new Zbir($1, $3);
 }
|  E '-' E {
  $$ = new Razlika($1, $3);
 }
|  E '*' E {
  $$ = new Proizvod($1, $3);
 }
|  E '/' E {
  $$ = new Kolicnik($1, $3);
 }
|  '(' E ')' {
  $$ = $2;
 }
|  E mod_token E {
  $$ = new Mod($1, $3);
 }
|  '-' E %prec UMINUS {
  $$ = new Minus($2);
 }
|  num_token {
  $$ = new Konstanta($1);
 }
|  id_token {
  $$ = new Promenljiva(*$1);
  delete $1;
   }
;
%%
int main() {
  yyparse();
  return 0;
}