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_______________________________________________________________ *)
19 exception ObjectNotFound of Z.message
22 let env = UH.create hsize
24 (* Internal functions *******************************************************)
26 let error uri = raise (ObjectNotFound (L.items1 (U.string_of_uri uri)))
28 (* Interface functions ******************************************************)
30 let set_entity f entity =
32 let ra, na, uri, b = entity in
33 let entity0 = if !G.expand then ra, E.node_attrs ~apix:0 (), uri, b else entity in
34 UH.add env uri entity0; f entity
36 let _, _, uri, _ = entity in
37 UH.add env uri entity; f entity
40 let get_entity f uri =
41 try f (UH.find env uri) with Not_found -> error uri