refactoring ...

[helm.git] / helm / software / lambda-delta / src / basic_ag / bag.ml

diff --git a/helm/software/lambda-delta/src/basic_ag/bag.ml b/helm/software/lambda-delta/src/basic_ag/bag.ml
deleted file mode 100644 (file)
index fc0f72f..0000000
--- a/helm/software/lambda-delta/src/basic_ag/bag.ml
+++ /dev/null
@@ -1,89 +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_______________________________________________________________ *)
-
-(* kernel version: basic, absolute, global *)
-(* note          : experimental *) 
-
-module E = Entity
-
-type uri = E.uri
-type attrs = E.attrs
-
-type bind = Void         (* exclusion *)
-          | Abst of term (* abstraction *)
-          | Abbr of term (* abbreviation *)
-
-and term = Sort of int                       (* hierarchy index *)
-         | LRef of int                       (* location *)
-         | GRef of uri                       (* reference *)
-         | Cast of term * term               (* domain, element *)
-         | Appl of term * term               (* argument, function *)
-         | Bind of attrs * int * bind * term (* name, location, binder, scope *)
-
-type entity = term E.entity (* attrs, uri, binder *)
-
-type lenv = (attrs * int * bind) list (* location, name, binder *) 
-
-type message = (lenv, term) Log.item list
-
-(* Currified constructors ***************************************************)
-
-let abst w = Abst w
-
-let abbr v = Abbr v
-
-let lref i = LRef i
-
-let cast u t = Cast (u, t)
-
-let appl u t = Appl (u, t)
-
-let bind a l b t = Bind (a, l, b, t)
-
-let bind_abst a l u t = Bind (a, l, Abst u, t)
-
-let bind_abbr a l v t = Bind (a, l, Abbr v, t)
-
-(* local environment handling functions *************************************)
-
-let empty_lenv = []
-
-let push msg f es a l b =
-   let rec does_not_occur loc = function
-      | []                          -> true
-      | (_, l, _) :: _ when l = loc -> false
-      | _ :: es                     -> does_not_occur l es
-   in
-   if not (does_not_occur l es) then failwith msg else
-   let c = (a, l, b) :: es in f c
-
-let append f es1 es2 = 
-   f (List.append es2 es1)
-
-let map f map es =
-   Cps.list_map f map es
-
-let contents f es = f es
-
-let get err f es i =
-   let rec aux = function
-      | []              -> err ()
-      | (a, l, b) :: tl -> if l = i then f a b else aux tl
-   in
-   aux es
-
-let nth err f loc e =
-   let rec aux n = function
-      | []                          -> err loc
-      | (_, l, _) :: _ when l = loc -> f n
-      | _ :: e                      -> aux (succ n) e
-   in
-   aux 0 e