AW: Very interesting thing happend while creating a menu item...

[Jürgen Pfeifer]

Yes. This is the relevant part from the source code that hopefully makes very 
clear what happens:

static bool Is_Printable_String(const char *s)
{
  assert(s);
  while(*s)
    {
      if (!isprint((unsigned char)*s))
        return FALSE;
      s++;
    }
  return TRUE;
}

NCURSES_EXPORT(ITEM *)
new_item (const char *name, const char *description)
{
  ITEM *item;
  
  if ( !name || (*name == '\0') || !Is_Printable_String(name) )
    {
      item = (ITEM *)0;
      SET_ERROR( E_BAD_ARGUMENT );
    }
...

-----Ursprüngliche Nachricht-----
Von: jon wackley [mailto:address@hidden 
Gesendet: Thursday, February 27, 2003 3:12 AM
An: Jürgen Pfeifer; address@hidden
Cc: address@hidden
Betreff: RE: Very interesting thing happend while creating a menu item...


Thanks for the clarification Jurgen.  Just to be clear, if the string to 
new_item contains any non-printable characters then the call will fail?  The 
location of the ESC char in the string is irrelevant.

Thanks,
jonw

> -----Original Message-----
> From: Jürgen Pfeifer [mailto:address@hidden
> Sent: February 26, 2003 7:18 PM
> To: jon wackley; address@hidden
> Cc: address@hidden
> Subject: RE: Very interesting thing happend while creating a menu
> item...
> 
> 
> This is not a bug, it is intended behaviour.
> Non-Printable strings as menu labels are simply not allowed.
> If you do a check for null on the new_item() call and if null
> evaluate errno you would see that you got an E_BAD_ARGUMENT.
> 
> Cheers
> Jürgen
> 
> > > On Wed, Feb 26, 2003 at 12:48:12PM -0500, jon wackley wrote:
> > > >
> > > > Hi All,
> > > >
> > > > Just a curiousity, is this a bug, or a case of improper api use?
> > >