author  wenzelm 
Fri, 21 May 2004 21:28:14 +0200  
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parent 14644  3224082514f9 
child 14876  477c414000f8 
permissions  rwrr 
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(* Title: Pure/display.ML 
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ID: $Id$ 
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Author: Lawrence C Paulson, Cambridge University Computer Laboratory 
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Copyright 1993 University of Cambridge 
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Printing of theories, theorems, etc. 
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*) 
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11883  9 
signature BASIC_DISPLAY = 
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sig 

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val goals_limit: int ref 
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val show_hyps: bool ref 
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val show_tags: bool ref 

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val string_of_thm: thm > string 

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val print_thm: thm > unit 

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val print_thms: thm list > unit 

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val prth: thm > thm 

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val prthq: thm Seq.seq > thm Seq.seq 

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val prths: thm list > thm list 

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val string_of_ctyp: ctyp > string 

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val print_ctyp: ctyp > unit 

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val string_of_cterm: cterm > string 

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val print_cterm: cterm > unit 

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val print_syntax: theory > unit 

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val show_consts: bool ref 

26 
end; 

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signature DISPLAY = 
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sig 
11883  30 
include BASIC_DISPLAY 
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val pretty_flexpair: (term > Pretty.T) > term * term > Pretty.T 
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val pretty_thm_aux: (sort > Pretty.T) * (term > Pretty.T) > bool > thm > Pretty.T 
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val pretty_thm_no_quote: thm > Pretty.T 
11883  34 
val pretty_thm: thm > Pretty.T 
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val pretty_thms: thm list > Pretty.T 

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val pretty_thm_sg: Sign.sg > thm > Pretty.T 

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val pretty_thms_sg: Sign.sg > thm list > Pretty.T 

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val pprint_thm: thm > pprint_args > unit 

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val pretty_ctyp: ctyp > Pretty.T 

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val pprint_ctyp: ctyp > pprint_args > unit 

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val pretty_cterm: cterm > Pretty.T 

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val pprint_cterm: cterm > pprint_args > unit 

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val pretty_theory: theory > Pretty.T 

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val pprint_theory: theory > pprint_args > unit 

8720  45 
val pretty_full_theory: theory > Pretty.T list 
11883  46 
val pretty_name_space: string * NameSpace.T > Pretty.T 
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val pretty_goals_aux: (sort > Pretty.T) * (typ > Pretty.T) * (term > Pretty.T) 
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> string > bool * bool > int > thm > Pretty.T list 

11883  49 
val pretty_goals: int > thm > Pretty.T list 
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val print_goals: int > thm > unit 

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val current_goals_markers: (string * string * string) ref 

12418  52 
val pretty_current_goals: int > int > thm > Pretty.T list 
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val print_current_goals_default: int > int > thm > unit 

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val print_current_goals_fn: (int > int > thm > unit) ref 

4950  55 
end; 
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4950  57 
structure Display: DISPLAY = 
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struct 
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11883  60 

6087  61 
(** print thm **) 
62 

12081  63 
val goals_limit = ref 10; (*max number of goals to print  set by user*) 
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val show_hyps = ref false; (*false: print metahypotheses as dots*) 
11883  65 
val show_tags = ref false; (*false: suppress tags*) 
6087  66 

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fun pretty_tag (name, args) = Pretty.strs (name :: map Library.quote args); 
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val pretty_tags = Pretty.list "[" "]" o map pretty_tag; 
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fun pretty_flexpair pretty_term (t, u) = Pretty.block 
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[pretty_term t, Pretty.str " =?=", Pretty.brk 1, pretty_term u]; 
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fun pretty_thm_aux (pretty_sort, pretty_term) quote th = 
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let 
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val {hyps, tpairs, prop, der = (ora, _), ...} = rep_thm th; 
6087  76 
val xshyps = Thm.extra_shyps th; 
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val (_, tags) = Thm.get_name_tags th; 

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val q = if quote then Pretty.quote else I; 
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val prt_term = q o pretty_term; 
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val hlen = length xshyps + length hyps + length tpairs; 
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val hsymbs = 
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if hlen = 0 andalso not ora then [] 
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else if ! show_hyps then 
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[Pretty.brk 2, Pretty.list "[" "]" 
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(map (q o pretty_flexpair pretty_term) tpairs @ map prt_term hyps @ 
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map pretty_sort xshyps @ 
9500  89 
(if ora then [Pretty.str "!"] else []))] 
6889  90 
else [Pretty.brk 2, Pretty.str ("[" ^ implode (replicate hlen ".") ^ 
9500  91 
(if ora then "!" else "") ^ "]")]; 
6087  92 
val tsymbs = 
93 
if null tags orelse not (! show_tags) then [] 

94 
else [Pretty.brk 1, pretty_tags tags]; 

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in Pretty.block (prt_term prop :: (hsymbs @ tsymbs)) end; 
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12067  97 
fun gen_pretty_thm quote th = 
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let val sg = Thm.sign_of_thm th 

12081  99 
in pretty_thm_aux (Sign.pretty_sort sg, Sign.pretty_term sg) quote th end; 
6889  100 

12067  101 
val pretty_thm = gen_pretty_thm true; 
102 
val pretty_thm_no_quote = gen_pretty_thm false; 

6889  103 

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val string_of_thm = Pretty.string_of o pretty_thm; 
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val pprint_thm = Pretty.pprint o pretty_thm; 
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fun pretty_thms [th] = pretty_thm th 
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 pretty_thms ths = Pretty.block (Pretty.fbreaks (map pretty_thm ths)); 

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val pretty_thm_sg = pretty_thm oo Thm.transfer_sg; 
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val pretty_thms_sg = pretty_thms oo (map o Thm.transfer_sg); 

113 

6087  114 

115 
(* toplevel commands for printing theorems *) 

116 

117 
val print_thm = Pretty.writeln o pretty_thm; 

118 
val print_thms = Pretty.writeln o pretty_thms; 

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fun prth th = (print_thm th; th); 
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(*Print and return a sequence of theorems, separated by blank lines. *) 
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fun prthq thseq = 
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(Seq.print (fn _ => print_thm) 100000 thseq; thseq); 
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(*Print and return a list of theorems, separated by blank lines. *) 
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fun prths ths = (seq (fn th => (print_thm th; writeln "")) ths; ths); 
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(* other printing commands *) 
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4126  132 
fun pretty_ctyp cT = 
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let val {sign, T} = rep_ctyp cT in Sign.pretty_typ sign T end; 

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fun pprint_ctyp cT = 
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let val {sign, T} = rep_ctyp cT in Sign.pprint_typ sign T end; 
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fun string_of_ctyp cT = 
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let val {sign, T} = rep_ctyp cT in Sign.string_of_typ sign T end; 
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val print_ctyp = writeln o string_of_ctyp; 
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3547  143 
fun pretty_cterm ct = 
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let val {sign, t, ...} = rep_cterm ct in Sign.pretty_term sign t end; 

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fun pprint_cterm ct = 
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let val {sign, t, ...} = rep_cterm ct in Sign.pprint_term sign t end; 
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fun string_of_cterm ct = 
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let val {sign, t, ...} = rep_cterm ct in Sign.string_of_term sign t end; 
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val print_cterm = writeln o string_of_cterm; 
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4250  155 

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(** print theory **) 

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6390  158 
val pretty_theory = Sign.pretty_sg o Theory.sign_of; 
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val pprint_theory = Sign.pprint_sg o Theory.sign_of; 

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6390  161 
val print_syntax = Syntax.print_syntax o Theory.syn_of; 
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4250  163 

4498  164 
(* pretty_name_space *) 
165 

166 
fun pretty_name_space (kind, space) = 

167 
let 

168 
fun prt_entry (name, accs) = Pretty.block 

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(Pretty.str (Library.quote name ^ " =") :: Pretty.brk 1 :: 
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Pretty.commas (map (Pretty.quote o Pretty.str) accs)); 
4498  171 
in 
172 
Pretty.fbreaks (Pretty.str (kind ^ ":") :: map prt_entry (NameSpace.dest space)) 

173 
> Pretty.block 

174 
end; 

175 

176 

11883  177 
(* pretty_full_theory *) 
4250  178 

8720  179 
fun pretty_full_theory thy = 
4250  180 
let 
8720  181 
val sg = Theory.sign_of thy; 
182 

4250  183 
fun prt_cls c = Sign.pretty_sort sg [c]; 
184 
fun prt_sort S = Sign.pretty_sort sg S; 

185 
fun prt_arity t (c, Ss) = Sign.pretty_arity sg (t, Ss, [c]); 

10737  186 
fun prt_typ_no_tvars ty = Pretty.quote (Sign.pretty_typ sg (#1 (Type.freeze_thaw_type ty))); 
8720  187 
fun prt_term t = Pretty.quote (Sign.pretty_term sg t); 
4250  188 

14794  189 
fun pretty_classrel (c, []) = prt_cls c 
190 
 pretty_classrel (c, cs) = Pretty.block 

191 
(prt_cls c :: Pretty.str " <" :: Pretty.brk 1 :: 

192 
Pretty.commas (map prt_cls cs)); 

4250  193 

194 
fun pretty_default S = Pretty.block 

14794  195 
[Pretty.str "default sort:", Pretty.brk 1, prt_sort S]; 
4250  196 

197 
fun pretty_ty (t, n) = Pretty.block 

8458  198 
[Pretty.str t, Pretty.brk 1, Pretty.str (string_of_int n)]; 
4250  199 

7635  200 
fun pretty_witness None = Pretty.str "universal nonemptiness witness: " 
201 
 pretty_witness (Some (T, S)) = Pretty.block 

14794  202 
[Pretty.str "universal nonemptiness witness:", Pretty.brk 1, 
203 
prt_typ_no_tvars T, Pretty.str " ::", Pretty.brk 1, prt_sort S]; 

204 

205 
fun pretty_nonterminals ts = Pretty.block 

206 
(Pretty.breaks (Pretty.str "syntactic types:" :: map Pretty.str ts)); 

7635  207 

4250  208 
fun pretty_abbr (t, (vs, rhs)) = Pretty.block 
10737  209 
[prt_typ_no_tvars (Type (t, map (fn v => TVar ((v, 0), [])) vs)), 
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Pretty.str " =", Pretty.brk 1, prt_typ_no_tvars rhs]; 

4250  211 

212 
fun pretty_arities (t, ars) = map (prt_arity t) ars; 

213 

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fun pretty_final (c:string, tys:typ list) = Pretty.block 
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([Pretty.str c, Pretty.str " ::", Pretty.brk 1] @ 
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(if null tys then [Pretty.str "<all instances>"] 
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else Pretty.commas (map prt_typ_no_tvars tys))); 
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14794  219 
fun pretty_const (c, (ty, _)) = Pretty.block 
10737  220 
[Pretty.str c, Pretty.str " ::", Pretty.brk 1, prt_typ_no_tvars ty]; 
4250  221 

8720  222 
fun prt_axm (a, t) = Pretty.block [Pretty.str (a ^ ":"), Pretty.brk 1, prt_term t]; 
223 

224 

14794  225 
val {self = _, tsig, consts, path, spaces, data} = Sign.rep_sg sg; 
8720  226 
val {axioms, oracles, ...} = Theory.rep_theory thy; 
6846  227 
val spaces' = Library.sort_wrt fst spaces; 
14794  228 
val {classes, default, types, arities, log_types = _, witness} = Type.rep_tsig tsig; 
229 
val tdecls = Symtab.dest types > 

230 
map (fn (t, (decl, _)) => (Sign.cond_extern sg Sign.typeK t, decl)); 

231 
val tycons = mapfilter (fn (t, Type.LogicalType n) => Some (t, n)  _ => None) tdecls; 

232 
val abbrs = mapfilter (fn (t, Type.Abbreviation u) => Some (t, u)  _ => None) tdecls; 

233 
val nonterminals = mapfilter (fn (t, Type.Nonterminal) => Some t  _ => None) tdecls; 

234 
val finals = Symtab.dest (#final_consts (Theory.rep_theory thy)); 

235 
val cnsts = Sign.cond_extern_table sg Sign.constK consts; 

8720  236 
val axms = Sign.cond_extern_table sg Theory.axiomK axioms; 
237 
val oras = Sign.cond_extern_table sg Theory.oracleK oracles; 

4250  238 
in 
8720  239 
[Pretty.strs ("stamps:" :: Sign.stamp_names_of sg), 
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Pretty.strs ("data:" :: Sign.data_kinds data), 

11501  241 
Pretty.strs ["name prefix:", NameSpace.pack (if_none path [""])], 
8720  242 
Pretty.big_list "name spaces:" (map pretty_name_space spaces'), 
14794  243 
Pretty.big_list "classes:" (map pretty_classrel (Graph.dest classes)), 
8720  244 
pretty_default default, 
14794  245 
pretty_witness witness, 
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Pretty.big_list "logical type constructors:" (map pretty_ty tycons), 

247 
Pretty.big_list "type abbreviations:" (map pretty_abbr abbrs), 

248 
pretty_nonterminals nonterminals, 

8720  249 
Pretty.big_list "type arities:" (flat (map pretty_arities (Symtab.dest arities))), 
14794  250 
Pretty.big_list "consts:" (map pretty_const cnsts), 
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Pretty.big_list "finals:" (map pretty_final finals), 
8720  252 
Pretty.big_list "axioms:" (map prt_axm axms), 
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Pretty.strs ("oracles:" :: (map #1 oras))] 

4250  254 
end; 
255 

256 

11883  257 

258 
(** print_goals **) 

259 

260 
(* print_goals etc. *) 

261 

8908  262 
(*show consts with types in proof state output?*) 
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val show_consts = ref false; 
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11883  266 
(*print thm A1,...,An/B in "goal style"  premises as numbered subgoals*) 
267 

268 
local 

269 

12081  270 
fun ins_entry (x, y) [] = [(x, [y])] 
271 
 ins_entry (x, y) ((pair as (x', ys')) :: pairs) = 

272 
if x = x' then (x', y ins ys') :: pairs 

273 
else pair :: ins_entry (x, y) pairs; 

274 

275 
fun add_consts (Const (c, T), env) = ins_entry (T, (c, T)) env 

276 
 add_consts (t $ u, env) = add_consts (u, add_consts (t, env)) 

277 
 add_consts (Abs (_, _, t), env) = add_consts (t, env) 

278 
 add_consts (_, env) = env; 

11883  279 

12081  280 
fun add_vars (Free (x, T), env) = ins_entry (T, (x, ~1)) env 
281 
 add_vars (Var (xi, T), env) = ins_entry (T, xi) env 

282 
 add_vars (Abs (_, _, t), env) = add_vars (t, env) 

283 
 add_vars (t $ u, env) = add_vars (u, add_vars (t, env)) 

284 
 add_vars (_, env) = env; 

11883  285 

12081  286 
fun add_varsT (Type (_, Ts), env) = foldr add_varsT (Ts, env) 
287 
 add_varsT (TFree (x, S), env) = ins_entry (S, (x, ~1)) env 

288 
 add_varsT (TVar (xi, S), env) = ins_entry (S, xi) env; 

11883  289 

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fun sort_idxs vs = map (apsnd (sort (prod_ord String.compare Int.compare))) vs; 
12081  291 
fun sort_cnsts cs = map (apsnd (sort_wrt fst)) cs; 
292 

293 
fun consts_of t = sort_cnsts (add_consts (t, [])); 

294 
fun vars_of t = sort_idxs (add_vars (t, [])); 

295 
fun varsT_of t = rev (sort_idxs (it_term_types add_varsT (t, []))); 

296 

297 
in 

11883  298 

12081  299 
fun pretty_goals_aux (prt_sort, prt_typ, prt_term) begin_goal (msg, main) maxgoals state = 
300 
let 

301 
fun prt_atoms prt prtT (X, xs) = Pretty.block 

302 
[Pretty.block (Pretty.commas (map prt xs)), Pretty.str " ::", 

303 
Pretty.brk 1, prtT X]; 

11883  304 

12081  305 
fun prt_var (x, ~1) = prt_term (Syntax.free x) 
306 
 prt_var xi = prt_term (Syntax.var xi); 

307 

308 
fun prt_varT (x, ~1) = prt_typ (TFree (x, [])) 

309 
 prt_varT xi = prt_typ (TVar (xi, [])); 

310 

311 
val prt_consts = prt_atoms (prt_term o Const) prt_typ; 

312 
val prt_vars = prt_atoms prt_var prt_typ; 

313 
val prt_varsT = prt_atoms prt_varT prt_sort; 

11883  314 

315 

12081  316 
fun pretty_list _ _ [] = [] 
317 
 pretty_list name prt lst = [Pretty.big_list name (map prt lst)]; 

11883  318 

12081  319 
fun pretty_subgoal (n, A) = 
320 
Pretty.blk (0, [Pretty.str (begin_goal ^ " " ^ string_of_int n ^ ". "), prt_term A]); 

321 
fun pretty_subgoals As = map pretty_subgoal (1 upto length As ~~ As); 

11883  322 

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val pretty_ffpairs = pretty_list "flexflex pairs:" (pretty_flexpair prt_term); 
11883  324 

12081  325 
val pretty_consts = pretty_list "constants:" prt_consts o consts_of; 
326 
val pretty_vars = pretty_list "variables:" prt_vars o vars_of; 

327 
val pretty_varsT = pretty_list "type variables:" prt_varsT o varsT_of; 

11883  328 

329 

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330 
val {prop, tpairs, ...} = rep_thm state; 
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331 
val (As, B) = Logic.strip_horn prop; 
12081  332 
val ngoals = length As; 
11883  333 

12081  334 
fun pretty_gs (types, sorts) = 
335 
(if main then [prt_term B] else []) @ 

336 
(if ngoals = 0 then [Pretty.str "No subgoals!"] 

337 
else if ngoals > maxgoals then 

338 
pretty_subgoals (take (maxgoals, As)) @ 

339 
(if msg then [Pretty.str ("A total of " ^ string_of_int ngoals ^ " subgoals...")] 

340 
else []) 

341 
else pretty_subgoals As) @ 

342 
pretty_ffpairs tpairs @ 

343 
(if ! show_consts then pretty_consts prop else []) @ 

344 
(if types then pretty_vars prop else []) @ 

345 
(if sorts then pretty_varsT prop else []); 

346 
in 

347 
setmp show_no_free_types true 

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348 
(setmp show_types (! show_types orelse ! show_sorts orelse ! show_all_types) 
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(setmp show_sorts false pretty_gs)) 
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350 
(! show_types orelse ! show_sorts orelse ! show_all_types, ! show_sorts) 
11883  351 
end; 
352 

12081  353 
fun pretty_goals_marker bg n th = 
354 
let val sg = Thm.sign_of_thm th in 

355 
pretty_goals_aux (Sign.pretty_sort sg, Sign.pretty_typ sg, Sign.pretty_term sg) 

356 
bg (true, true) n th 

357 
end; 

358 

359 
val pretty_goals = pretty_goals_marker ""; 

12418  360 
val print_goals = (Pretty.writeln o Pretty.chunks) oo pretty_goals_marker ""; 
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362 
end; 
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diff
changeset

363 

11883  364 

365 
(* print_current_goals *) 

366 

367 
val current_goals_markers = ref ("", "", ""); 

368 

12418  369 
fun pretty_current_goals n m th = 
11883  370 
let 
371 
val ref (begin_state, end_state, begin_goal) = current_goals_markers; 

372 
val ngoals = nprems_of th; 

373 
in 

12418  374 
(if begin_state = "" then [] else [Pretty.str begin_state]) @ 
375 
[Pretty.str ("Level " ^ string_of_int n ^ 

11883  376 
(if ngoals > 0 then " (" ^ string_of_int ngoals ^ " subgoal" ^ 
377 
(if ngoals <> 1 then "s" else "") ^ ")" 

12418  378 
else ""))] @ 
379 
pretty_goals_marker begin_goal m th @ 

380 
(if end_state = "" then [] else [Pretty.str end_state]) 

11883  381 
end; 
382 

12418  383 
fun print_current_goals_default n m th = 
384 
Pretty.writeln (Pretty.chunks (pretty_current_goals n m th)); 

385 

11883  386 
val print_current_goals_fn = ref print_current_goals_default; 
387 

388 
end; 

389 

390 
structure BasicDisplay: BASIC_DISPLAY = Display; 

391 
open BasicDisplay; 