#include <stdio.h>
#include <stdlib.h>
#include <readline/readline.h>
#include <readline/history.h>

static char *line_read = (char *)NULL;


union an_union {
  int an_integer;
  float a_float;
  double a_double;
  long a_long;
} u;

void load_in_u_swapped(char *line_read)
{
  int i=0;
  int count=0;
  int temp[8];
  unsigned char *pointer = (unsigned char *) &temp;
  unsigned char *u_pointer= (unsigned char *) &u;
  
  while (i<strlen(line_read))
    {
       sscanf(&line_read[i],"%x",&temp[count]);
       i+=5;
       count++;
    }
  count--;
  for(;count>=0;count--)
    {
      pointer=(unsigned char *) &temp[count];
      strncpy(u_pointer,&pointer[0],1);
      u_pointer++;
    }

}


void load_in_u(char *line_read) 
{
  int i=0;
  int temp=0;
  unsigned char *pointer = (unsigned char *) &temp;
  unsigned char *u_pointer= (unsigned char *) &u;

  while (i<strlen(line_read))
    {
      sscanf(&line_read[i],"%x",&temp);
      //printf("%d\n",pointer[0]);
      strncpy(u_pointer,&pointer[0],1);
      i+=5;
      u_pointer+=1;
    }

}


char * rl_gets (char *prompt)
{
  /* If the buffer has already been allocated,
     return the memory to the free pool. */
  if (line_read)
    {
      free (line_read);
      line_read = (char *)NULL;
    }

  /* Get a line from the user. */
  line_read = readline (prompt);

  /* If the line has any text in it,
     save it on the history. */
  if (line_read && *line_read)
    add_history (line_read);

  return (line_read);
}


void parse (char *line_read)
{
}


int main (int argc, char **argv)
{
  char *prompt=NULL;
  char *prompt1="hex:le> ";
  char *prompt2="hex:be> ";
  prompt=prompt1;
  while (1)
    {
      
      line_read=rl_gets(prompt);
      //printf("%s\n",line_read);
      load_in_u(line_read);
      printf("int=%d\n",u.an_integer);
      printf("float=%f\n",u.a_float);
      printf("double=%f\n",u.a_double);
      //prompt=prompt2;
    }
  return 0;
}