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

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

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

/* 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(parser_result) == 0) {
    printf("Parse successful: ");
    if (parser_result != NULL) { 
      stmt_print(parser_result);
      printf("\n");
      printf("Running the program, results in: ");
      stmt_evaluate(parser_result);
      printf("\n");
    }
    printf("parser_result is %p\n", parser_result);
    return 0;
  } else {
    printf("Parse failed!\n");
    return 1;
  }
}