1 (* Copyright (C) 2004, 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/
30 let tactical_terminator = "."
31 let tactic_terminator = tactical_terminator
32 let command_terminator = tactical_terminator
33 let tactical_separator = ";"
35 let pp_term_ast term = CicAstPp.pp_term term
36 let pp_term_cic term = CicPp.ppterm term
38 let pp_idents idents = "[" ^ String.concat "; " idents ^ "]"
40 let pp_reduction_kind = function
42 | `Simpl -> "simplify"
44 | `Normalize -> "normalize"
46 let rec pp_tactic = function
47 | Absurd (_, term) -> "absurd" ^ pp_term_ast term
48 | Apply (_, term) -> "apply " ^ pp_term_ast term
50 | Assumption _ -> "assumption"
51 | Change (_, t1, t2, where) ->
52 sprintf "change %s with %s%s" (pp_term_ast t1) (pp_term_ast t2)
53 (match where with None -> "" | Some ident -> "in " ^ ident)
54 | Change_pattern (_, _, _, _) -> assert false (* TODO *)
55 | Contradiction _ -> "contradiction"
56 | Cut (_, term) -> "cut " ^ pp_term_ast term
57 | Decompose (_, ident, principles) ->
58 sprintf "decompose %s %s" (pp_idents principles) ident
59 | Discriminate (_, ident) -> "discriminate " ^ ident
60 | Elim (_, term, using) ->
61 sprintf "elim " ^ pp_term_ast term ^
62 (match using with None -> "" | Some term -> " using " ^ pp_term_ast term)
63 | ElimType (_, term) -> "elim type " ^ pp_term_ast term
64 | Exact (_, term) -> "exact " ^ pp_term_ast term
65 | Exists _ -> "exists"
66 | Fold (_, kind, term) ->
67 sprintf "fold %s %s" (pp_reduction_kind kind) (pp_term_ast term)
68 | Goal (_, n) -> "goal " ^ string_of_int n
69 | Fourier _ -> "fourier"
70 | Injection (_, ident) -> "injection " ^ ident
71 | Intros (_, None, []) -> "intro"
72 | Intros (_, num, idents) ->
74 (match num with None -> "" | Some num -> " " ^ string_of_int num)
75 (match idents with [] -> "" | idents -> " " ^ pp_idents idents)
77 | LetIn (_, term, ident) -> sprintf "let %s in %s" (pp_term_ast term) ident
78 | Reduce (_, kind, None)
79 | Reduce (_, kind, Some ([], `Goal)) -> pp_reduction_kind kind
80 | Reduce (_, kind, Some ([], `Everywhere)) ->
81 sprintf "%s in hyp" (pp_reduction_kind kind)
82 | Reduce (_, kind, Some (terms, `Goal)) ->
83 sprintf "%s %s" (pp_reduction_kind kind)
84 (String.concat ", " (List.map pp_term_ast terms))
85 | Reduce (_, kind, Some (terms, `Everywhere)) ->
86 sprintf "%s in hyp %s" (pp_reduction_kind kind)
87 (String.concat ", " (List.map pp_term_ast terms))
88 | ReduceAt (_, kind, id, term) ->
89 sprintf "%s %s at %s" (pp_reduction_kind kind) id
91 | Reflexivity _ -> "reflexivity"
92 | Replace (_, t1, t2) ->
93 sprintf "replace %s with %s" (pp_term_ast t1) (pp_term_ast t2)
94 | Replace_pattern (_, _, _) -> assert false (* TODO *)
95 | Rewrite (_, pos, t, None) ->
96 sprintf "rewrite %s %s"
97 (if pos = `Left then "left" else "right") (pp_term_ast t)
98 | Rewrite _ -> assert false (* TODO *)
102 | Symmetry _ -> "symmetry"
103 | Transitivity (_, term) -> "transitivity " ^ pp_term_ast term
105 let pp_flavour = function
106 | `Definition -> "Definition"
110 | `Remark -> "Remark"
111 | `Theorem -> "Theorem"
113 let pp_search_kind = function
114 | `Locate -> "locate"
119 let pp_macro pp_term = function
121 | WInstance (_, term) -> "whelp instance " ^ pp_term term
122 | WHint (_, t) -> "whelp hint " ^ pp_term t
123 | WLocate (_, s) -> "whelp locate " ^ s
124 | WElim (_, t) -> "whelp elim " ^ pp_term t
125 | WMatch (_, term) -> "whelp match " ^ pp_term term
127 (* | Abort _ -> "Abort" *)
128 | Check (_, term) -> sprintf "Check %s" (pp_term term)
130 (* | Redo (_, None) -> "Redo"
131 | Redo (_, Some n) -> sprintf "Redo %d" n *)
132 | Search_pat (_, kind, pat) ->
133 sprintf "search %s \"%s\"" (pp_search_kind kind) pat
134 | Search_term (_, kind, term) ->
135 sprintf "search %s %s" (pp_search_kind kind) (pp_term term)
136 (* | Undo (_, None) -> "Undo"
137 | Undo (_, Some n) -> sprintf "Undo %d" n *)
138 | Print (_, name) -> sprintf "Print \"%s\"" name
141 let pp_macro_ast = pp_macro pp_term_ast
142 let pp_macro_cic = pp_macro pp_term_cic
144 let pp_alias = function
145 | Ident_alias (id, uri) -> sprintf "alias id \"%s\" = \"%s\"" id uri
146 | Symbol_alias (symb, instance, desc) ->
147 sprintf "alias symbol \"%s\" (instance %d) = \"%s\""
149 | Number_alias (instance,desc) ->
150 sprintf "alias num (instance %d) = \"%s\"" instance desc
152 let pp_params = function
158 (fun (name, typ) -> sprintf "(%s:%s)" name (pp_term_ast typ))
161 let pp_fields fields =
162 (if fields <> [] then "\n" else "") ^
164 (List.map (fun (name,ty) -> " " ^ name ^ ": " ^ pp_term_ast ty) fields)
166 let pp_obj = function
167 | Inductive (params, types) ->
168 let pp_constructors constructors =
170 (List.map (fun (name, typ) -> sprintf "| %s: %s" name (pp_term_ast typ))
173 let pp_type (name, _, typ, constructors) =
174 sprintf "\nwith %s: %s \\def\n%s" name (pp_term_ast typ)
175 (pp_constructors constructors)
179 | (name, inductive, typ, constructors) :: tl ->
181 sprintf "%sinductive %s%s: %s \\def\n%s"
182 (if inductive then "" else "co") name (pp_params params)
183 (pp_term_ast typ) (pp_constructors constructors)
185 fst_typ_pp ^ String.concat "" (List.map pp_type tl))
186 | Theorem (flavour, name, typ, body) ->
187 sprintf "%s %s: %s %s"
193 | Some body -> "\\def " ^ pp_term_ast body)
194 | Record (params,name,ty,fields) ->
195 "record " ^ name ^ " " ^ pp_params params ^ " \\def {" ^
196 pp_fields fields ^ "}"
199 let pp_command = function
201 | Set (_, name, value) -> sprintf "Set \"%s\" \"%s\"" name value
202 | Coercion (_,_) -> "Coercion IMPLEMENT ME!!!!!"
203 | Alias (_,s) -> pp_alias s
204 | Obj (_,obj) -> pp_obj obj
206 let rec pp_tactical = function
207 | Tactic (_, tac) -> pp_tactic tac
210 | Do (_, count, tac) -> sprintf "do %d %s" count (pp_tactical tac)
212 | Repeat (_, tac) -> "repeat " ^ pp_tactical tac
213 | Seq (_, tacs) -> pp_tacticals tacs
214 | Then (_, tac, tacs) ->
215 sprintf "%s [%s]" (pp_tactical tac) (pp_tacticals tacs)
216 | Tries (_, tacs) -> sprintf "tries [%s]" (pp_tacticals tacs)
217 | Try (_, tac) -> "try " ^ pp_tactical tac
219 and pp_tacticals tacs =
220 String.concat (tactical_separator ^ " ") (List.map pp_tactical tacs)
222 let pp_tactical tac = pp_tactical tac ^ tactical_terminator
223 let pp_tactic tac = pp_tactic tac ^ tactic_terminator
224 let pp_command tac = pp_command tac ^ command_terminator
226 let pp_executable = function
227 | Macro (_,x) -> pp_macro_ast x
228 | Tactical (_,x) -> pp_tactical x
229 | Command (_,x) -> pp_command x
231 let pp_comment = function
232 | Note (_,str) -> sprintf "(* %s *)" str
233 | Code (_,code) -> sprintf "(** %s. **)" (pp_executable code)
235 let pp_statement = function
236 | Executable (_, ex) -> pp_executable ex
237 | Comment (_, c) -> pp_comment c