2 ||M|| This file is part of HELM, an Hypertextual, Electronic
3 ||A|| Library of Mathematics, developed at the Computer Science
4 ||T|| Department, University of Bologna, Italy.
6 ||T|| HELM is free software; you can redistribute it and/or
7 ||A|| modify it under the terms of the GNU General Public License
8 \ / version 2 or (at your option) any later version.
9 \ / This software is distributed as is, NO WARRANTY.
10 V_______________________________________________________________ *)
18 let env = UH.create hsize
20 (* Interface functions ******************************************************)
23 let set_entity entity =
24 let ra, na, uri, b = entity in
25 let entity0 = if !G.expand then ra, {na with E.n_apix = 0}, uri, b else entity in
26 UH.add env uri entity0; entity
29 try UH.find env uri with Not_found -> E.empty_root, E.empty_node, uri, E.Void