# CLEAN -- Replace objects with sky.

procedure t_clean ()

pointer	catalog			# Catalog
real	grow			# Grow factor
pointer	filter			# Filter options

pointer	sp
int	stflt()
real	clgetr()


begin
	call smark (sp)
	call salloc (catalog, SZ_FNAME, TY_CHAR)
	call salloc (filter, SZ_LINE, TY_CHAR)

	call clgstr ("catalog", Memc[catalog], SZ_LINE)
	grow = clgetr ("grow")
	call clgstr ("filter", Memc[filter], SZ_LINE)

	call strpak (Memc[catalog], Memc[catalog], SZ_FNAME)
	call strpak (Memc[filter], Memc[filter], SZ_LINE)

	if (stflt (Memc[filter]) == 0)
	    call clean (Memc[catalog], grow)

	call sfree (sp)
end