Entity - attribute boundary

[Joseph Boyle <planetwork@josephboyle.net>]

Now that attributes strictly follow entities:

xdi-address = *peer-root *inner-root *entity-node *attribute-node [ attribute-instance value-arc]

Wouldn't it be sufficient to have one character after all entities and before all attributes?

xdi-address = *peer-root *inner-root *entity-node "|" *attribute-node [ attribute-instance value-arc]

Then all following arcs (except a final &) would be known to be attributes without having to individually enclose in < >.