gensym
Creates an anonymous glob and returns a reference to it that can be
used as a filehandle or directory handle.
qualify (symname[, pkg])
Turns unqualified symbol names into qualified variable names (e.g.,
turns myvar into
MyPackage::myvar).
qualify_to_ref (symname[, pkg])
Like qualify, but returns a glob reference that
can be used even if use strict 'refs' is in
effect.
ungensym
For backward compatibility only; does nothing.