What is nameout() for?

I am confused by nameout(). There are a number of places where table
names are output using nameout(), and many other cases where they are
just output without calling nameout. Can someone explain why the dash
is important? I can see the pstrdup as being important, but not in all
of the cases where nameout is called.

---------------------------------------------------------------------------

/*
* nameout - converts internal reprsentation to "..."
*/
char *
nameout(NameData *s)
{
if (s == NULL)
return "-";
else
return pstrdup(s->data);
}

--
Bruce Momjian | http://www.op.net/~candle
maillist(at)candle(dot)pha(dot)pa(dot)us | (610) 853-3000
+ If your life is a hard drive, | 830 Blythe Avenue
+ Christ can be your backup. | Drexel Hill, Pennsylvania 19026