be numbered 0 to N-1, numbered 1 to N, or even designated by letter, A .. Z.
The only requirement is that the names do not contain whitespace and that the
names "current", "next", "prev", "first", "last" and "advance" retain their
be numbered 0 to N-1, numbered 1 to N, or even designated by letter, A .. Z.
The only requirement is that the names do not contain whitespace and that the
names "current", "next", "prev", "first", "last" and "advance" retain their