/*
Main program of calculator example.
Simply invoke the parser generated by bison, and then display the output.
*/

#include "expr.h"
#include "token.h"
#include <stdio.h>

/* Clunky: Declare the parse function generated from parser.bison */
// extern int yyparse(struct stmt *parser_result);
extern int yyparse();
extern char *yytext;

extern int yylex();

/* Clunky: Declare the result of the parser from parser.bison */

struct stmt *parser_result;

int main(int argc, char *argv[]) {
  printf("Lab 6 Example Interpreter Compiler\n");
  printf(
      "Enter an infix expression using the operators +-*/() ending with ;\n\n");
  
  if (yyparse() == 0) {
    printf("Parse successful: \n");
    if (parser_result != NULL) {
      stmt_print(parser_result);
      printf("\n");
      printf("Running the program, results in: ");
      stmt_evaluate(parser_result);
      printf("\n");
    }
    return 0;
  } else {
    printf("Parse failed!\n");
    return 1;
  }
}