refactoring: helena sources are now in a dedicated directory

[helm.git] / helm / software / lambda-delta / common / hierarchy.ml

diff --git a/helm/software/lambda-delta/common/hierarchy.ml b/helm/software/lambda-delta/common/hierarchy.ml
deleted file mode 100644 (file)
index b7d4283..0000000
--- a/helm/software/lambda-delta/common/hierarchy.ml
+++ /dev/null
@@ -1,64 +0,0 @@
-(*
-    ||M||  This file is part of HELM, an Hypertextual, Electronic        
-    ||A||  Library of Mathematics, developed at the Computer Science     
-    ||T||  Department, University of Bologna, Italy.                     
-    ||I||                                                                
-    ||T||  HELM is free software; you can redistribute it and/or         
-    ||A||  modify it under the terms of the GNU General Public License   
-    \   /  version 2 or (at your option) any later version.              
-     \ /   This software is distributed as is, NO WARRANTY.              
-      V_______________________________________________________________ *)
-
-module H = Hashtbl
-module S = Scanf
-module C = Cps
-
-type graph = string * (int -> int)
-
-let sorts = 3
-let sort = H.create sorts
-
-let default_graph = "Z1"
-
-(* Internal functions *******************************************************)
-
-let set_sort h s =
-   H.add sort h s; succ h
-
-let graph_of_string err f s =
-   try 
-      let x = S.sscanf s "Z%u" C.start in 
-      if x > 0 then f (s, fun h -> x + h) else err ()
-   with
-      S.Scan_failure _ | Failure _ | End_of_file -> err ()
-
-let graph = ref (graph_of_string C.err C.start default_graph)
-
-(* Interface functions ******************************************************)
-
-let set_sorts i ss =   
-   List.fold_left set_sort i ss
-
-let string_of_sort err f h =
-   try f (H.find sort h) with Not_found -> err ()
-
-let sort_of_string err f s =
-   let map h n = function
-      | None when n = s -> Some h
-      | xh              -> xh
-   in
-   match H.fold map sort None with
-      | None   -> err ()
-      | Some h -> f h
-
-let string_of_graph () = fst !graph
-
-let apply h = snd !graph h
-
-let set_graph s =
-   let err () = false in
-   let f g = graph := g; true in
-   graph_of_string err f s
-
-let clear () =
-   H.clear sort; graph := graph_of_string C.err C.start default_graph