TYPEMAP
 struct dictionary *   T_PTRREF
 struct variable *     T_PTRREF
 struct sysfile_info * T_PTRREF
 struct sysreader_info * T_PTRREF
 input_format  INPUT_FMT_SPEC
 output_format OUTPUT_FMT_SPEC


INPUT
OUTPUT_FMT_SPEC
 {
   HV *hv = (HV *) SvRV ($arg);
   SV** the_format = hv_fetch (hv, \"fmt\", 3, 0);
   SV** decimals = hv_fetch (hv, \"decimals\", 8, 0);
   SV** width = hv_fetch (hv, \"width\", 5, 0);

   $var.type = the_format ? SvIV (*the_format) : FMT_F;
   $var.w    = width ? SvIV (*width) : 8;
   $var.d    = decimals ? SvIV (*decimals) :
     fmt_takes_decimals ($var.type) ?
     MIN (2, fmt_max_output_decimals ($var.type, $var.w)) : 0;
   if ( ! fmt_check_output (&$var))
   {
	char buf[FMT_STRING_LEN_MAX + 1];
        fmt_to_string (&$var, buf);
  	croak (\"%s is an invalid output format\", buf);
   }

 }


INPUT_FMT_SPEC
 {
   HV *hv = (HV *) SvRV ($arg);
   SV** the_format = hv_fetch (hv, \"fmt\", 3, 0);
   SV** decimals = hv_fetch (hv, \"decimals\", 8, 0);
   SV** width = hv_fetch (hv, \"width\", 5, 0);


   $var.type = the_format ? SvIV (*the_format) : FMT_F;
   $var.w    = width ? SvIV (*width) : 8;
   $var.d    = decimals ? SvIV (*decimals) :
     fmt_takes_decimals ($var.type) ?
     MIN (2, fmt_max_input_decimals ($var.type, $var.w)) : 0;
   if ( ! fmt_check_input (&$var))
   {
	char buf[FMT_STRING_LEN_MAX + 1];
        fmt_to_string (&$var, buf);
  	croak (\"%s is an invalid input format\", buf);
   }

 }