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
34 let pp_idents idents = "[" ^ String.concat "; " idents ^ "]"
36 let pp_reduction_kind ~term_pp = function
37 | `Normalize -> "normalize"
39 | `Simpl -> "simplify"
40 | `Unfold (Some t) -> "unfold " ^ term_pp t
41 | `Unfold None -> "unfold"
44 let pp_tactic_pattern ~term_pp ~lazy_term_pp (what, hyp, goal) =
48 | Some t -> sprintf "in match (%s) " (lazy_term_pp t) in
51 (List.map (fun (name, p) -> sprintf "%s:(%s)" name (term_pp p)) hyp) in
55 | Some t -> sprintf "\\vdash (%s)" (term_pp t) in
56 sprintf "%sin %s%s" what_text hyp_text goal_text
58 let pp_intros_specs = function
60 | Some num, [] -> Printf.sprintf " names %i" num
61 | None, idents -> Printf.sprintf " names %s" (pp_idents idents)
62 | Some num, idents -> Printf.sprintf " names %i %s" num (pp_idents idents)
64 let terms_pp ~term_pp terms = String.concat ", " (List.map term_pp terms)
66 let rec pp_tactic ~term_pp ~lazy_term_pp =
67 let pp_reduction_kind = pp_reduction_kind ~term_pp in
68 let pp_tactic_pattern = pp_tactic_pattern ~lazy_term_pp ~term_pp in
70 | Absurd (_, term) -> "absurd" ^ term_pp term
71 | Apply (_, term) -> "apply " ^ term_pp term
73 | Assumption _ -> "assumption"
74 | Change (_, where, with_what) ->
75 sprintf "change %s with %s" (pp_tactic_pattern where) (lazy_term_pp with_what)
76 | Clear (_,id) -> sprintf "clear %s" id
77 | ClearBody (_,id) -> sprintf "clearbody %s" id
78 | Compare (_,term) -> "compare " ^ term_pp term
79 | Constructor (_,n) -> "constructor " ^ string_of_int n
80 | Contradiction _ -> "contradiction"
81 | Cut (_, ident, term) ->
82 "cut " ^ term_pp term ^
83 (match ident with None -> "" | Some id -> " as " ^ id)
84 | DecideEquality _ -> "decide equality"
85 | Decompose (_, [], what, names) ->
86 sprintf "decompose %s%s" what (pp_intros_specs (None, names))
87 | Decompose (_, types, what, names) ->
88 let to_ident = function
90 | Type _ -> assert false
92 let types = List.rev_map to_ident types in
93 sprintf "decompose %s %s%s" (pp_idents types) what (pp_intros_specs (None, names))
94 | Discriminate (_, term) -> "discriminate " ^ term_pp term
95 | Elim (_, term, using, num, idents) ->
96 sprintf "elim " ^ term_pp term ^
97 (match using with None -> "" | Some term -> " using " ^ term_pp term)
98 ^ pp_intros_specs (num, idents)
99 | ElimType (_, term, using, num, idents) ->
100 sprintf "elim type " ^ term_pp term ^
101 (match using with None -> "" | Some term -> " using " ^ term_pp term)
102 ^ pp_intros_specs (num, idents)
103 | Exact (_, term) -> "exact " ^ term_pp term
104 | Exists _ -> "exists"
105 | Fold (_, kind, term, pattern) ->
106 sprintf "fold %s %s %s" (pp_reduction_kind kind)
107 (lazy_term_pp term) (pp_tactic_pattern pattern)
108 | FwdSimpl (_, hyp, idents) ->
109 sprintf "fwd %s%s" hyp
110 (match idents with [] -> "" | idents -> " " ^ pp_idents idents)
111 | Generalize (_, pattern, ident) ->
112 sprintf "generalize %s%s" (pp_tactic_pattern pattern)
113 (match ident with None -> "" | Some id -> " as " ^ id)
114 | Goal (_, n) -> "goal " ^ string_of_int n
116 | Fourier _ -> "fourier"
118 | Injection (_, term) -> "injection " ^ term_pp term
119 | Intros (_, None, []) -> "intro"
120 | Inversion (_, term) -> "inversion " ^ term_pp term
121 | Intros (_, num, idents) ->
123 (match num with None -> "" | Some num -> " " ^ string_of_int num)
124 (match idents with [] -> "" | idents -> " " ^ pp_idents idents)
125 | LApply (_, level_opt, terms, term, ident_opt) ->
126 sprintf "lapply %s%s%s%s"
127 (match level_opt with None -> "" | Some i -> " depth = " ^ string_of_int i ^ " ")
129 (match terms with [] -> "" | _ -> " to " ^ terms_pp ~term_pp terms)
130 (match ident_opt with None -> "" | Some ident -> " using " ^ ident)
132 | LetIn (_, term, ident) -> sprintf "let %s in %s" (term_pp term) ident
133 | Reduce (_, kind, pat) ->
134 sprintf "%s %s" (pp_reduction_kind kind) (pp_tactic_pattern pat)
135 | Reflexivity _ -> "reflexivity"
136 | Replace (_, pattern, t) ->
137 sprintf "replace %s with %s" (pp_tactic_pattern pattern) (lazy_term_pp t)
138 | Rewrite (_, pos, t, pattern) ->
139 sprintf "rewrite %s %s %s"
140 (if pos = `LeftToRight then ">" else "<")
142 (pp_tactic_pattern pattern)
146 | Symmetry _ -> "symmetry"
147 | Transitivity (_, term) -> "transitivity " ^ term_pp term
149 let pp_search_kind = function
150 | `Locate -> "locate"
154 | `Instance -> "instance"
156 let pp_macro ~term_pp = function
158 | WInstance (_, term) -> "whelp instance " ^ term_pp term
159 | WHint (_, t) -> "whelp hint " ^ term_pp t
160 | WLocate (_, s) -> "whelp locate " ^ s
161 | WElim (_, t) -> "whelp elim " ^ term_pp t
162 | WMatch (_, term) -> "whelp match " ^ term_pp term
164 | Check (_, term) -> sprintf "Check %s" (term_pp term)
166 | Search_pat (_, kind, pat) ->
167 sprintf "search %s \"%s\"" (pp_search_kind kind) pat
168 | Search_term (_, kind, term) ->
169 sprintf "search %s %s" (pp_search_kind kind) (term_pp term)
170 | Print (_, name) -> sprintf "Print \"%s\"" name
173 let pp_associativity = function
174 | Gramext.LeftA -> "left associative"
175 | Gramext.RightA -> "right associative"
176 | Gramext.NonA -> "non associative"
178 let pp_precedence i = sprintf "with precedence %d" i
180 let pp_dir_opt = function
182 | Some `LeftToRight -> "> "
183 | Some `RightToLeft -> "< "
185 let pp_default what uris =
186 sprintf "default \"%s\" %s" what
187 (String.concat " " (List.map UriManager.string_of_uri uris))
189 let pp_coercion uri do_composites =
190 sprintf "coercion %s (* %s *)" (UriManager.string_of_uri uri)
191 (if do_composites then "compounds" else "no compounds")
193 let pp_command ~obj_pp = function
194 | Include (_,path) -> "include " ^ path
197 | Set (_, name, value) -> sprintf "set \"%s\" \"%s\"" name value
198 | Coercion (_, uri, do_composites) -> pp_coercion uri do_composites
199 | Obj (_,obj) -> obj_pp obj
200 | Default (_,what,uris) ->
203 let rec pp_tactical ~term_pp ~lazy_term_pp =
204 let pp_tactic = pp_tactic ~lazy_term_pp ~term_pp in
205 let pp_tacticals = pp_tacticals ~lazy_term_pp ~term_pp in
207 | Tactic (_, tac) -> pp_tactic tac
208 | Do (_, count, tac) ->
209 sprintf "do %d %s" count (pp_tactical ~term_pp ~lazy_term_pp tac)
210 | Repeat (_, tac) -> "repeat " ^ pp_tactical ~term_pp ~lazy_term_pp tac
211 | Seq (_, tacs) -> pp_tacticals ~sep:"; " tacs
212 | Then (_, tac, tacs) ->
213 sprintf "%s; [%s]" (pp_tactical ~term_pp ~lazy_term_pp tac)
214 (pp_tacticals ~sep:" | " tacs)
215 | First (_, tacs) -> sprintf "tries [%s]" (pp_tacticals ~sep:" | " tacs)
216 | Try (_, tac) -> "try " ^ pp_tactical ~term_pp ~lazy_term_pp tac
217 | Solve (_, tac) -> sprintf "solve [%s]" (pp_tacticals ~sep:" | " tac)
223 | Pos (_, i) -> sprintf "%d:" i
225 | Focus (_, goals) ->
226 sprintf "focus %s" (String.concat " " (List.map string_of_int goals))
227 | Unfocus _ -> "unfocus"
230 and pp_tacticals ~term_pp ~lazy_term_pp ~sep tacs =
231 String.concat sep (List.map (pp_tactical~lazy_term_pp ~term_pp) tacs)
233 let pp_executable ~term_pp ~lazy_term_pp ~obj_pp =
235 | Macro (_, macro) -> pp_macro ~term_pp macro
236 | Tactical (_, tac, Some punct) ->
237 pp_tactical ~lazy_term_pp ~term_pp tac
238 ^ pp_tactical ~lazy_term_pp ~term_pp punct
239 | Tactical (_, tac, None) -> pp_tactical ~lazy_term_pp ~term_pp tac
240 | Command (_, cmd) -> pp_command ~obj_pp cmd
242 let pp_comment ~term_pp ~lazy_term_pp ~obj_pp =
244 | Note (_,str) -> sprintf "(* %s *)" str
246 sprintf "(** %s. **)" (pp_executable ~term_pp ~lazy_term_pp ~obj_pp code)
248 let pp_statement ~term_pp ~lazy_term_pp ~obj_pp =
250 | Executable (_, ex) -> pp_executable ~lazy_term_pp ~term_pp ~obj_pp ex
251 | Comment (_, c) -> pp_comment ~term_pp ~lazy_term_pp ~obj_pp c