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_______________________________________________________________ *)
14 exception IllFormedReference of string Lazy.t
19 | Fix of int * int (* fixno, recparamno *)
21 | Ind of bool * int (* inductive, indtyno *)
22 | Con of int * int (* indtyno, constrno *)
24 type reference = Ref of int * NUri.uri * spec
28 module OrderedStrings =
31 let compare (s1 : t) (s2 : t) = compare s1 s2
35 module MapStringsToReference = Map.Make(OrderedStrings);;
37 let set_of_reference = ref MapStringsToReference.empty;;
39 (* '.' not allowed in path and foo
41 * Decl cic:/path/foo.dec
42 * Def cic:/path/foo.def
43 * Fix of int * int cic:/path/foo.fix(i,j)
44 * CoFix of int cic:/path/foo.cfx(i)
45 * Ind of int cic:/path/foo.ind(i)
46 * Con of int * int cic:/path/foo.con(i,j)
49 let uri_suffix_of_ref_suffix = function
50 | "dec" | "fix" | "cfx" | "def" -> "con"
51 | "ind" | "con" -> "ind"
52 | x -> prerr_endline (x ^ " not a valid suffix"); assert false
55 let reference_of_string =
56 let counter = ref 0 in
57 let c () = incr counter; !counter in
59 let comma = String.rindex s ',' in
60 let i = int_of_string (String.sub s (dot+5) (comma-dot-5)) in
61 let j = int_of_string (String.sub s (comma+1) (String.length s-comma-2)) in
65 let i = int_of_string (String.sub s (dot+5) (String.length s-1-dot-5)) in
69 try MapStringsToReference.find s !set_of_reference
73 let dot = String.rindex s '.' in
74 let prefix = String.sub s 0 (dot+1) in
75 let suffix = String.sub s (dot+1) 3 in
76 let u = NUri.uri_of_string (prefix ^ uri_suffix_of_ref_suffix suffix) in
78 | "dec" -> Ref (c (), u, Decl)
79 | "def" -> Ref (c (), u, Def)
80 | "fix" -> let i,j = get2 s dot in Ref (c (), u, Fix (i,j))
81 | "cfx" -> let i = get1 s dot in Ref (c (), u, CoFix (i))
82 | "ind" -> let b,i = get2 s dot in Ref (c (), u, Ind (b=1,i))
83 | "con" -> let i,j = get2 s dot in Ref (c (), u, Con (i,j))
84 | _ -> raise Not_found
85 with Not_found -> raise (IllFormedReference (lazy s))
87 set_of_reference := MapStringsToReference.add s new_reference !set_of_reference;
91 let string_of_reference (Ref (_,u,indinfo)) =
92 let s = NUri.string_of_uri u in
93 let dot = String.rindex s '.' in
94 let s2 = String.sub s 0 dot in
98 | Fix (i,j) -> s2 ^ ".fix(" ^ string_of_int i ^ "," ^ string_of_int j ^ ")"
99 | CoFix i -> s2 ^ ".cfx(" ^ string_of_int i ^ ")"
100 | Ind (b,i)->s2 ^".ind(" ^(if b then "1" else "0")^ "," ^ string_of_int i ^")"
101 | Con (i,j) -> s2 ^ ".con(" ^ string_of_int i ^ "," ^ string_of_int j ^ ")"
104 let mk_constructor j = function
105 | Ref (d, u, Ind (_,i)) ->
106 reference_of_string (string_of_reference (Ref (d, u, Con (i,j))))
110 let mk_fix i j = function
111 | Ref (d, u, Fix _) ->
112 reference_of_string (string_of_reference (Ref (d, u, Fix (i,j))))
116 let mk_cofix i = function
117 | Ref (d, u, CoFix _) ->
118 reference_of_string (string_of_reference (Ref (d, u, CoFix i)))