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
18 | Def of int (* height *)
19 | Fix of int * int * int (* fixno, recparamno, height *)
21 | Ind of bool * int * int (* inductive, indtyno, leftno *)
22 | Con of int * int * int (* indtyno, constrno, leftno *)
24 type reference = Ref of NUri.uri * spec
28 let compare (Ref (u1,s1)) (Ref (u2,s2)) =
29 let res = NUri.compare u1 u2 in
30 if res = 0 then compare s1 s2 else res
33 module OrderedStrings =
36 let compare (s1 : t) (s2 : t) = Pervasives.compare s1 s2
40 module MapStringsToReference = Map.Make(OrderedStrings);;
42 let set_of_reference = ref MapStringsToReference.empty;;
44 (* '.' not allowed in path and foo
46 * Decl cic:/path/foo.dec
47 * Def cic:/path/foo.def
48 * Fix of int * int cic:/path/foo.fix(i,j)
49 * CoFix of int cic:/path/foo.cfx(i)
50 * Ind of int cic:/path/foo.ind(i)
51 * Con of int * int cic:/path/foo.con(i,j)
54 let uri_suffix_of_ref_suffix = function
55 | "dec" | "fix" | "cfx" | "def" -> "con"
56 | "ind" | "con" -> "ind"
57 | x -> prerr_endline (x ^ " not a valid suffix"); assert false
60 let reference_of_string =
62 let comma2 = String.rindex s ',' in
63 let comma = String.rindex_from s (comma2-1) ',' in
64 let s_i = String.sub s (dot+5) (comma-dot-5) in
65 let s_j = String.sub s (comma+1) (comma2-comma-1) in
66 let s_h = String.sub s (comma2+1) (String.length s-comma2-2) in
67 let i = int_of_string s_i in
68 let j = int_of_string s_j in
69 let h = int_of_string s_h in
74 let comma = String.rindex s ',' in
75 let i = int_of_string (String.sub s (dot+5) (comma-dot-5)) in
76 let j = int_of_string (String.sub s (comma+1) (String.length s-comma-2)) in
81 let i = int_of_string (String.sub s (dot+5) (String.length s-1-dot-5)) in
85 try MapStringsToReference.find s !set_of_reference
89 let dot = String.rindex s '.' in
90 let prefix = String.sub s 0 (dot+1) in
91 let suffix = String.sub s (dot+1) 3 in
92 let u = NUri.uri_of_string (prefix ^ uri_suffix_of_ref_suffix suffix) in
94 | "dec" -> Ref (u, Decl)
95 | "def" -> let i = get1 s dot in Ref (u, Def i)
96 | "fix" -> let i,j,h = get3 s dot in Ref (u, Fix (i,j,h))
97 | "cfx" -> let i = get1 s dot in Ref (u, CoFix (i))
98 | "ind" -> let b,i,l = get3 s dot in Ref (u, Ind (b=1,i,l))
99 | "con" -> let i,j,l = get3 s dot in Ref (u, Con (i,j,l))
100 | _ -> raise Not_found
101 with Not_found -> raise (IllFormedReference (lazy s))
103 set_of_reference := MapStringsToReference.add s new_reference !set_of_reference;
107 let string_of_reference (Ref (u,indinfo)) =
108 let s = NUri.string_of_uri u in
109 let dot = String.rindex s '.' in
110 let s2 = String.sub s 0 dot in
112 | Decl -> s2 ^ ".dec"
113 | Def h -> s2 ^ ".def(" ^ string_of_int h ^ ")"
115 s2 ^ ".fix(" ^ string_of_int i ^ "," ^
116 string_of_int j ^ "," ^ string_of_int h ^ ")"
117 | CoFix i -> s2 ^ ".cfx(" ^ string_of_int i ^ ")"
118 | Ind (b,i,l)->s2 ^".ind(" ^(if b then "1" else "0")^ "," ^ string_of_int i ^
119 "," ^ string_of_int l ^ ")"
120 | Con (i,j,l) -> s2 ^ ".con(" ^ string_of_int i ^ "," ^ string_of_int j ^
121 "," ^ string_of_int l ^ ")"
124 let mk_constructor j = function
125 | Ref (u, Ind (_,i,l)) ->
126 reference_of_string (string_of_reference (Ref (u, Con (i,j,l))))
128 raise (IllFormedReference (lazy ("NON INDUCTIVE TYPE REFERENCE: " ^
129 string_of_reference r)));
131 let mk_indty b = function
132 | Ref (u, Con (i,_,l)) ->
133 reference_of_string (string_of_reference (Ref (u, Ind (b,i,l))))
135 raise (IllFormedReference (lazy
136 ("NON INDUCTIVE TYPE CONSTRUCTOR REFERENCE: " ^ string_of_reference r)));
139 let mk_fix i j = function
140 | Ref (u, Fix (_,_,h)) ->
141 reference_of_string (string_of_reference (Ref (u, Fix (i,j,h))))
145 let mk_cofix i = function
146 | Ref (u, CoFix _) ->
147 reference_of_string (string_of_reference (Ref (u, CoFix i)))
151 let reference_of_spec u spec =
152 reference_of_string (string_of_reference (Ref (u, spec)))