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_______________________________________________________________ *)
23 (* Internal functions *******************************************************)
36 if List.mem n reserved then !G.alpha ^ n else n
38 let out_preamble och =
39 let ich = open_in !G.preamble in
40 let rec aux () = KP.fprintf och "%s\n" (input_line ich); aux () in
41 try aux () with End_of_file -> close_in ich
43 let out_top_comment och msg =
44 let padding = width - String.length msg in
45 let padding = if padding >= 0 then padding else 0 in
46 KP.fprintf och "(* %s %s*)\n\n" msg (String.make padding '*')
48 let out_comment och msg =
49 KP.fprintf och "(* %s *)\n" msg
51 let out_include och src =
52 KP.fprintf och "include \"%s.ma\".\n\n" src
55 let str = U.string_of_uri u in
58 if c = '.' then () else begin
59 output_char och (if c = '/' then '_' else c);
64 if n <= 0 then succ i else
65 strip (String.index_from str (succ i) '/') (pred n)
71 | true -> KP.fprintf och "%s" (alpha n)
72 | false -> KP.fprintf och "_"
74 let err () = f "" false in
77 let rec out_term st p e och = function
79 let sort = if h = 0 then "Type" else if h = 1 then "Prop" else assert false in
80 KP.fprintf och "%s" sort
82 let _, _, a, b = B.get e i in
83 KP.fprintf och "%a" out_name a
85 KP.fprintf och "%a" out_uri s
87 KP.fprintf och "(%a : %a)" (out_term st false e) t (out_term st false e) u
88 | B.Appl (_, _, v, t) ->
89 let pt = match t with B.Appl _ -> false | _ -> true in
90 let op, cp = if p then "(", ")" else "", "" in
91 KP.fprintf och "%s%a %a%s" op (out_term st pt e) t (out_term st true e) v cp
92 | B.Bind (a, B.Abst (r, n, w), t) ->
94 let op, cp = if p then "(", ")" else "", "" in
95 let a = R.alpha B.mem e a in
96 let ee = B.push e B.empty a (B.abst r n w) in
97 let ob, cb = match N.to_string st n with
98 | "1" -> "forall", ","
100 | _ -> ok := false; "?", "?"
102 KP.fprintf och "%s%s (%a:%a)%s %a%s"
103 op ob out_name a (out_term st false e) w cb (out_term st false ee) t cp
104 | B.Bind (a, B.Abbr v, t) ->
105 let op, cp = if p then "(", ")" else "", "" in
106 let a = R.alpha B.mem e a in
107 let ee = B.push e B.empty a (B.abbr v) in
108 KP.fprintf och "%slet %a := %a in %a%s"
109 op out_name a (out_term st false e) v (out_term st false ee) t cp
110 | B.Bind (a, B.Void, t) -> C.err ()
112 let close_out och () = close_out och
114 let output_entity och st (_, na, s, b) =
115 out_comment och (KP.sprintf "constant %u" na.E.n_apix);
118 KP.fprintf och "Definition %a := %a.\n\n%!" out_uri s (out_term st false B.empty) t; !ok
120 KP.fprintf och "Axiom %a : %a.\n\n%!" out_uri s (out_term st false B.empty) t; !ok
123 (* Interface functions ******************************************************)
126 let dir = KF.concat !G.manager_dir base in
127 let path = KF.concat dir fname in
128 let och = open_out (path ^ ext) in
130 out_top_comment och (KP.sprintf "This file was generated by %s: do not edit" G.version_string);
131 (* out_include och "basics/pts"; *)
132 output_entity och, close_out och