aboutsummaryrefslogblamecommitdiff
path: root/main.cpp
blob: eae05977ee568f07365bcd18b945a92f06e3b8ab (plain) (tree)
1
2
3
4
5
6
7
8
9
10
11
12
13


                    
                 
                







                                              
                                  



            
                                

                                           

                                      
                 

             
                          

           


                                         

                                                              


                               
                                                                           
         
     
 
#include "model.h"
#include "builtin.h"
#include "parser.h"
#include "eval.h"
#include "exc.h"
#include <cstdio>

#ifdef DEBUG
extern Cons *empty_list;
void tree_print(Cons *ptr) {
    if (!ptr || ptr == empty_list) return;
    ptr->_debug_print();
    tree_print(dynamic_cast<Cons*>(ptr->car));
    tree_print(TO_CONS(ptr->cdr));
}
#endif

int main() {
    //freopen("in", "r", stdin);
    Tokenizor *tk = new Tokenizor();
    ASTGenerator *ast = new ASTGenerator();
    Evaluator *eval = new Evaluator();

    int rcnt = 0;
    while (1)
    {
        printf("Sonsi> ");
        try
        {
            Cons *tree = ast->absorb(tk);
            if (!tree) break;
            //tree_print(tree);
            fprintf(stderr, "Ret> $%d = %s\n", rcnt++, 
                    eval->run_expr(tree)->ext_repr().c_str());
        }
        catch (GeneralError &e)
        {
            fprintf(stderr, "An error occured: %s\n", e.get_msg().c_str());
        }
    }
}