1 (* Copyright (C) 2004-2005, HELM Team.
3 * This file is part of HELM, an Hypertextual, Electronic
4 * Library of Mathematics, developed at the Computer Science
5 * Department, University of Bologna, Italy.
7 * HELM is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version 2
10 * of the License, or (at your option) any later version.
12 * HELM is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with HELM; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
22 * For details, see the HELM World-Wide-Web page,
23 * http://helm.cs.unibo.it/
31 let pp_binder = function
44 let rec pp_term = function
45 | AttributedTerm (_, term) -> pp_term term
48 sprintf "(%s)" (String.concat " " (List.map pp_term terms))
49 | Binder (`Forall, (Ident ("_", None), typ), body)
50 | Binder (`Pi, (Ident ("_", None), typ), body) ->
51 sprintf "(%s \\to %s)"
52 (match typ with None -> "?" | Some typ -> pp_term typ)
54 | Binder (kind, var, body) ->
55 sprintf "\\%s %s.%s" (pp_binder kind) (pp_capture_variable var)
57 | Case (term, indtype, typ, patterns) ->
58 sprintf "%smatch %s with %s"
59 (match typ with None -> "" | Some t -> sprintf "<%s>" (pp_term t))
60 (pp_term term) (pp_patterns patterns)
61 | LetIn (var, t1, t2) ->
62 sprintf "let %s = %s in %s" (pp_capture_variable var) (pp_term t1)
64 | LetRec (kind, definitions, term) ->
65 sprintf "let %s %s in %s"
66 (match kind with `Inductive -> "rec" | `CoInductive -> "corec")
67 (String.concat " and "
69 (fun (var, body, _) ->
70 sprintf "%s = %s" (pp_capture_variable var) (pp_term body))
73 | Ident (name, Some []) | Ident (name, None)
74 | Uri (name, Some []) | Uri (name, None) ->
76 | Ident (name, Some substs)
77 | Uri (name, Some substs) ->
78 sprintf "%s \\subst [%s]" name (pp_substs substs)
80 | Meta (index, substs) ->
81 sprintf "%d[%s]" index
83 (List.map (function None -> "_" | Some term -> pp_term term) substs))
86 | Sort `Prop -> "Prop"
87 | Sort `Type -> "Type"
88 | Sort `CProp -> "CProp"
89 | Symbol (name, _) -> name
93 | Literal l -> pp_literal l
94 | Layout l -> pp_layout l
95 | Magic m -> pp_magic m
96 | Variable v -> pp_variable v
98 and pp_subst (name, term) = sprintf "%s \\Assign %s" name (pp_term term)
99 and pp_substs substs = String.concat "; " (List.map pp_subst substs)
101 and pp_pattern ((head, vars), term) =
102 sprintf "%s \\Rightarrow %s"
106 sprintf "(%s %s)" head
107 (String.concat " " (List.map pp_capture_variable vars)))
110 and pp_patterns patterns =
111 sprintf "[%s]" (String.concat " | " (List.map pp_pattern patterns))
113 and pp_capture_variable = function
114 | term, None -> pp_term term
115 | term, Some typ -> "(" ^ pp_term term ^ ": " ^ pp_term typ ^ ")"
117 and pp_layout = function
118 | Sub (t1, t2) -> sprintf "%s \\SUB %s" (pp_term t1) (pp_term t2)
119 | Sup (t1, t2) -> sprintf "%s \\SUP %s" (pp_term t1) (pp_term t2)
120 | Below (t1, t2) -> sprintf "%s \\BELOW %s" (pp_term t1) (pp_term t2)
121 | Above (t1, t2) -> sprintf "%s \\ABOVE %s" (pp_term t1) (pp_term t2)
122 | Over (t1, t2) -> sprintf "[%s \\OVER %s]" (pp_term t1) (pp_term t2)
123 | Atop (t1, t2) -> sprintf "[%s \\ATOP %s]" (pp_term t1) (pp_term t2)
124 | Frac (t1, t2) -> sprintf "\\FRAC %s %s" (pp_term t1) (pp_term t2)
125 | Sqrt t -> sprintf "\\SQRT %s" (pp_term t)
126 | Root (arg, index) ->
127 sprintf "\\ROOT %s \\OF %s" (pp_term index) (pp_term arg)
130 sprintf "\\HBOX [%s]" (String.concat " " (List.map pp_term terms))
132 sprintf "\\VBOX [%s]" (String.concat " " (List.map pp_term terms))
134 and pp_magic = function
135 | List0 (t, sep_opt) -> sprintf "\\LIST0 %s%s" (pp_term t) (pp_sep_opt sep_opt)
136 | List1 (t, sep_opt) -> sprintf "\\LIST1 %s%s" (pp_term t) (pp_sep_opt sep_opt)
137 | Opt t -> sprintf "\\OPT %s" (pp_term t)
138 | _ -> failwith "magic not implemented"
140 and pp_sep_opt = function
142 | Some sep -> sprintf "\\SEP %s" (pp_literal sep)
144 and pp_variable = function
145 | NumVar s -> "\\NUM " ^ s
146 | IdentVar s -> "\\IDENT " ^ s
147 | TermVar s -> "\\TERM " ^ s
148 | Ascription (t, n) -> sprintf "[%s \\AS %s]" (pp_term t) n
149 | FreshVar n -> "\\FRESH " ^ n
151 let rec pp_value = function
152 | TermValue t -> sprintf "$%s$" (pp_term t)
153 | StringValue s -> sprintf "\"%s\"" s
155 | OptValue (Some v) -> "Some " ^ pp_value v
156 | OptValue None -> "None"
157 | ListValue l -> sprintf "[%s]" (String.concat "; " (List.map pp_value l))
159 let rec pp_value_type =
162 | StringType -> "String"
163 | NumType -> "Number"
164 | OptType t -> "Maybe " ^ pp_value_type t
165 | ListType l -> "List " ^ pp_value_type l
170 (fun (name, (ty, value)) ->
171 sprintf "%s : %s = %s" name (pp_value_type ty) (pp_value value))