paulson@1591: (*  Title:      Pure/display.ML
paulson@1591:     ID:         $Id$
paulson@1591:     Author:     Lawrence C Paulson, Cambridge University Computer Laboratory
paulson@1591:     Copyright   1993  University of Cambridge
paulson@1591: 
paulson@1591: Printing of theories, theorems, etc.
paulson@1591: *)
paulson@1591: 
paulson@1591: signature DISPLAY =
paulson@1591:   sig
paulson@1591:   val pprint_cterm	: cterm -> pprint_args -> unit
paulson@1591:   val pprint_ctyp	: ctyp -> pprint_args -> unit
paulson@1591:   val pprint_theory	: theory -> pprint_args -> unit
paulson@1591:   val pprint_thm	: thm -> pprint_args -> unit
wenzelm@4126:   val pretty_ctyp	: ctyp -> Pretty.T
wenzelm@3547:   val pretty_cterm	: cterm -> Pretty.T
paulson@1591:   val pretty_thm	: thm -> Pretty.T
paulson@1591:   val print_cterm	: cterm -> unit
paulson@1591:   val print_ctyp	: ctyp -> unit
wenzelm@3851:   val show_consts	: bool ref
paulson@1591:   val print_goals	: int -> thm -> unit
wenzelm@4498:   val pretty_name_space : string * NameSpace.T -> Pretty.T
paulson@1591:   val print_syntax	: theory -> unit
paulson@1591:   val print_theory	: theory -> unit
wenzelm@3873:   val print_data	: theory -> string -> unit
paulson@1591:   val print_thm		: thm -> unit
paulson@1591:   val prth		: thm -> thm
wenzelm@4270:   val prthq		: thm Seq.seq -> thm Seq.seq
paulson@1591:   val prths		: thm list -> thm list
paulson@1591:   val show_hyps		: bool ref
paulson@1591:   val string_of_cterm	: cterm -> string
paulson@1591:   val string_of_ctyp	: ctyp -> string
paulson@1591:   val string_of_thm	: thm -> string
paulson@1591:   end;
paulson@1591: 
paulson@1591: 
paulson@1591: structure Display : DISPLAY =
paulson@1591: struct
paulson@1591: 
paulson@1591: (*If false, hypotheses are printed as dots*)
paulson@1591: val show_hyps = ref true;
paulson@1591: 
paulson@1591: fun pretty_thm th =
paulson@1591:   let
paulson@1591:     val {sign, hyps, prop, ...} = rep_thm th;
paulson@1591:     val xshyps = extra_shyps th;
paulson@1591:     val hlen = length xshyps + length hyps;
paulson@1591:     val hsymbs =
paulson@1591:       if hlen = 0 then []
paulson@1591:       else if ! show_hyps then
paulson@1591:         [Pretty.brk 2, Pretty.list "[" "]"
wenzelm@3785:           (map (Sign.pretty_term sign) hyps @
wenzelm@3785:            map (Sign.pretty_sort sign) xshyps)]
paulson@1591:       else
paulson@1591:         [Pretty.brk 2, Pretty.str ("[" ^ implode (replicate hlen ".") ^ "]")];
paulson@1591:   in
paulson@1591:     Pretty.block (Sign.pretty_term sign prop :: hsymbs)
paulson@1591:   end;
paulson@1591: 
paulson@1591: val string_of_thm = Pretty.string_of o pretty_thm;
paulson@1591: val pprint_thm = Pretty.pprint o Pretty.quote o pretty_thm;
paulson@1591: 
paulson@1591: 
paulson@1591: (** Top-level commands for printing theorems **)
paulson@1591: val print_thm = writeln o string_of_thm;
paulson@1591: 
paulson@1591: fun prth th = (print_thm th; th);
paulson@1591: 
paulson@1591: (*Print and return a sequence of theorems, separated by blank lines. *)
paulson@1591: fun prthq thseq =
wenzelm@4270:   (Seq.print (fn _ => print_thm) 100000 thseq; thseq);
paulson@1591: 
paulson@1591: (*Print and return a list of theorems, separated by blank lines. *)
wenzelm@4210: fun prths ths = (seq (fn th => (print_thm th; writeln "")) ths; ths);
paulson@1591: 
paulson@1591: 
paulson@1591: (* other printing commands *)
paulson@1591: 
wenzelm@4126: fun pretty_ctyp cT =
wenzelm@4126:   let val {sign, T} = rep_ctyp cT in Sign.pretty_typ sign T end;
wenzelm@4126: 
paulson@1591: fun pprint_ctyp cT =
paulson@1591:   let val {sign, T} = rep_ctyp cT in Sign.pprint_typ sign T end;
paulson@1591: 
paulson@1591: fun string_of_ctyp cT =
paulson@1591:   let val {sign, T} = rep_ctyp cT in Sign.string_of_typ sign T end;
paulson@1591: 
paulson@1591: val print_ctyp = writeln o string_of_ctyp;
paulson@1591: 
wenzelm@3547: fun pretty_cterm ct =
wenzelm@3547:   let val {sign, t, ...} = rep_cterm ct in Sign.pretty_term sign t end;
wenzelm@3547: 
paulson@1591: fun pprint_cterm ct =
paulson@1591:   let val {sign, t, ...} = rep_cterm ct in Sign.pprint_term sign t end;
paulson@1591: 
paulson@1591: fun string_of_cterm ct =
paulson@1591:   let val {sign, t, ...} = rep_cterm ct in Sign.string_of_term sign t end;
paulson@1591: 
paulson@1591: val print_cterm = writeln o string_of_cterm;
paulson@1591: 
paulson@1591: 
wenzelm@4250: 
wenzelm@4250: (** print theory **)
paulson@1591: 
paulson@1591: val pprint_theory = Sign.pprint_sg o sign_of;
paulson@1591: 
paulson@1591: val print_syntax = Syntax.print_syntax o syn_of;
wenzelm@3873: val print_data = Sign.print_data o sign_of;
paulson@1591: 
wenzelm@4250: 
wenzelm@4498: (* pretty_name_space  *)
wenzelm@4498: 
wenzelm@4498: fun pretty_name_space (kind, space) =
wenzelm@4498:   let
wenzelm@4498:     fun prt_entry (name, accs) = Pretty.block
wenzelm@4498:       (Pretty.str (quote name ^ " =") :: Pretty.brk 1 ::
wenzelm@4498:         Pretty.commas (map (Pretty.str o quote) accs));
wenzelm@4498:   in
wenzelm@4498:     Pretty.fbreaks (Pretty.str (kind ^ ":") :: map prt_entry (NameSpace.dest space))
wenzelm@4498:     |> Pretty.block
wenzelm@4498:   end;
wenzelm@4498: 
wenzelm@4498: 
wenzelm@4498: 
wenzelm@4250: (* print signature *)
wenzelm@4250: 
wenzelm@4250: fun print_sign sg =
wenzelm@4250:   let
wenzelm@4250:     fun prt_cls c = Sign.pretty_sort sg [c];
wenzelm@4250:     fun prt_sort S = Sign.pretty_sort sg S;
wenzelm@4250:     fun prt_arity t (c, Ss) = Sign.pretty_arity sg (t, Ss, [c]);
wenzelm@4250:     fun prt_typ ty = Pretty.quote (Sign.pretty_typ sg ty);
wenzelm@4250: 
wenzelm@4250:     val ext_class = Sign.cond_extern sg Sign.classK;
wenzelm@4250:     val ext_tycon = Sign.cond_extern sg Sign.typeK;
wenzelm@4250:     val ext_const = Sign.cond_extern sg Sign.constK;
wenzelm@4250: 
wenzelm@4250: 
wenzelm@4250:     fun pretty_classes cs = Pretty.block
wenzelm@4250:       (Pretty.breaks (Pretty.str "classes:" :: map prt_cls cs));
wenzelm@4250: 
wenzelm@4250:     fun pretty_classrel (c, cs) = Pretty.block
wenzelm@4250:       (prt_cls c :: Pretty.str " <" :: Pretty.brk 1 ::
wenzelm@4250:         Pretty.commas (map prt_cls cs));
wenzelm@4250: 
wenzelm@4250:     fun pretty_default S = Pretty.block
wenzelm@4250:       [Pretty.str "default:", Pretty.brk 1, prt_sort S];
wenzelm@4250: 
wenzelm@4250:     fun pretty_ty (t, n) = Pretty.block
wenzelm@4250:       [Pretty.str (ext_tycon t), Pretty.str (" " ^ string_of_int n)];
wenzelm@4250: 
wenzelm@4250:     fun pretty_abbr (t, (vs, rhs)) = Pretty.block
wenzelm@4250:       [prt_typ (Type (t, map (fn v => TVar ((v, 0), [])) vs)),
wenzelm@4250:         Pretty.str " =", Pretty.brk 1, prt_typ rhs];
wenzelm@4250: 
wenzelm@4250:     fun pretty_arities (t, ars) = map (prt_arity t) ars;
wenzelm@4250: 
wenzelm@4250:     fun pretty_const (c, ty) = Pretty.block
wenzelm@4250:       [Pretty.str c, Pretty.str " ::", Pretty.brk 1, prt_typ ty];
wenzelm@4250: 
wenzelm@4250:     val {self = _, tsig, const_tab, syn = _, path, spaces, data} = Sign.rep_sg sg;
wenzelm@4440:     val spaces' = sort_wrt fst spaces;
wenzelm@4250:     val {classes, classrel, default, tycons, abbrs, arities} =
wenzelm@4250:       Type.rep_tsig tsig;
wenzelm@4250:     val consts = sort_wrt fst (map (apfst ext_const) (Symtab.dest const_tab));
wenzelm@4250:   in
wenzelm@4250:     Pretty.writeln (Pretty.strs ("stamps:" :: Sign.stamp_names_of sg));
wenzelm@4256:     Pretty.writeln (Pretty.strs ("data:" :: Sign.data_kinds data));
wenzelm@4782:     Pretty.writeln (Pretty.strs ["name prefix:", NameSpace.pack path]);
wenzelm@4498:     Pretty.writeln (Pretty.big_list "name spaces:" (map pretty_name_space spaces'));
wenzelm@4250:     Pretty.writeln (pretty_classes classes);
wenzelm@4250:     Pretty.writeln (Pretty.big_list "class relation:" (map pretty_classrel classrel));
wenzelm@4250:     Pretty.writeln (pretty_default default);
wenzelm@4250:     Pretty.writeln (Pretty.big_list "type constructors:" (map pretty_ty tycons));
wenzelm@4250:     Pretty.writeln (Pretty.big_list "type abbreviations:" (map pretty_abbr abbrs));
wenzelm@4250:     Pretty.writeln (Pretty.big_list "type arities:" (flat (map pretty_arities arities)));
wenzelm@4250:     Pretty.writeln (Pretty.big_list "consts:" (map pretty_const consts))
wenzelm@4250:   end;
wenzelm@4250: 
wenzelm@4250: 
wenzelm@4250: (* print axioms, oracles, theorems *)
wenzelm@4250: 
wenzelm@3811: fun print_thy thy =
paulson@1591:   let
wenzelm@3990:     val {sign, axioms, oracles, ...} = rep_theory thy;
wenzelm@3990:     val axioms = Symtab.dest axioms;
wenzelm@3811:     val oras = map fst (Symtab.dest oracles);
paulson@1591: 
wenzelm@3936:     fun prt_axm (a, t) = Pretty.block
wenzelm@3990:       [Pretty.str (Sign.cond_extern sign Theory.axiomK a ^ ":"), Pretty.brk 1,
wenzelm@3936:         Pretty.quote (Sign.pretty_term sign t)];
paulson@1591:   in
wenzelm@3990:     Pretty.writeln (Pretty.big_list "axioms:" (map prt_axm axioms));
wenzelm@3990:     Pretty.writeln (Pretty.strs ("oracles:" :: oras));
wenzelm@4782:     print_data thy "Pure/theorems"	(*forward reference!*)
paulson@1591:   end;
paulson@1591: 
wenzelm@4250: fun print_theory thy = (print_sign (sign_of thy); print_thy thy);
paulson@1591: 
paulson@1591: 
paulson@1591: 
wenzelm@4250: (** print_goals **)
paulson@1591: 
wenzelm@4250: (*print thm A1,...,An/B in "goal style" -- premises as numbered subgoals*)
wenzelm@4250: 
wenzelm@4250: (*also show consts in case of showing types?*)
wenzelm@3851: val show_consts = ref false;
wenzelm@3851: 
paulson@1591: 
paulson@1591: local
wenzelm@3851: 
wenzelm@3851:   (* utils *)
paulson@1591: 
paulson@1591:   fun ins_entry (x, y) [] = [(x, [y])]
paulson@1591:     | ins_entry (x, y) ((pair as (x', ys')) :: pairs) =
wenzelm@3851:         if x = x' then (x', y ins ys') :: pairs
paulson@1591:         else pair :: ins_entry (x, y) pairs;
paulson@1591: 
wenzelm@3990:   fun add_consts (Const (c, T), env) = ins_entry (T, (c, T)) env
wenzelm@3851:     | add_consts (t $ u, env) = add_consts (u, add_consts (t, env))
wenzelm@3851:     | add_consts (Abs (_, _, t), env) = add_consts (t, env)
wenzelm@3851:     | add_consts (_, env) = env;
paulson@1591: 
wenzelm@3851:   fun add_vars (Free (x, T), env) = ins_entry (T, (x, ~1)) env
wenzelm@3851:     | add_vars (Var (xi, T), env) = ins_entry (T, xi) env
wenzelm@3851:     | add_vars (Abs (_, _, t), env) = add_vars (t, env)
wenzelm@3851:     | add_vars (t $ u, env) = add_vars (u, add_vars (t, env))
wenzelm@3851:     | add_vars (_, env) = env;
paulson@1591: 
wenzelm@3851:   fun add_varsT (Type (_, Ts), env) = foldr add_varsT (Ts, env)
wenzelm@3851:     | add_varsT (TFree (x, S), env) = ins_entry (S, (x, ~1)) env
wenzelm@3851:     | add_varsT (TVar (xi, S), env) = ins_entry (S, xi) env;
paulson@1591: 
wenzelm@4440:   fun sort_idxs vs = map (apsnd (sort (prod_ord string_ord int_ord))) vs;
wenzelm@4440:   fun sort_cnsts cs = map (apsnd (sort_wrt fst)) cs;
paulson@1591: 
paulson@1591: 
wenzelm@3851:   (* prepare atoms *)
wenzelm@3851: 
wenzelm@3990:   fun consts_of t = sort_cnsts (add_consts (t, []));
wenzelm@3851:   fun vars_of t = sort_idxs (add_vars (t, []));
wenzelm@3851:   fun varsT_of t = rev (sort_idxs (it_term_types add_varsT (t, [])));
wenzelm@3851: 
wenzelm@3851: in
wenzelm@3851: 
wenzelm@3851:   fun print_goals maxgoals state =
wenzelm@3851:     let
wenzelm@3851:       val {sign, ...} = rep_thm state;
paulson@1591: 
wenzelm@3851:       val prt_term = Sign.pretty_term sign;
wenzelm@3851:       val prt_typ = Sign.pretty_typ sign;
wenzelm@3851:       val prt_sort = Sign.pretty_sort sign;
wenzelm@3851: 
wenzelm@3851:       fun prt_atoms prt prtT (X, xs) = Pretty.block
wenzelm@3851:         [Pretty.block (Pretty.commas (map prt xs)), Pretty.str " ::",
wenzelm@3851:           Pretty.brk 1, prtT X];
paulson@1591: 
wenzelm@3851:       fun prt_var (x, ~1) = prt_term (Syntax.free x)
wenzelm@3851:         | prt_var xi = prt_term (Syntax.var xi);
wenzelm@3851: 
wenzelm@3851:       fun prt_varT (x, ~1) = prt_typ (TFree (x, []))
wenzelm@3851:         | prt_varT xi = prt_typ (TVar (xi, []));
wenzelm@3851: 
wenzelm@3990:       val prt_consts = prt_atoms (prt_term o Const) prt_typ;
wenzelm@3851:       val prt_vars = prt_atoms prt_var prt_typ;
wenzelm@3851:       val prt_varsT = prt_atoms prt_varT prt_sort;
paulson@1591: 
paulson@1591: 
wenzelm@3851:       fun print_list _ _ [] = ()
wenzelm@3851:         | print_list name prt lst = (writeln "";
wenzelm@3851:             Pretty.writeln (Pretty.big_list name (map prt lst)));
wenzelm@3851: 
wenzelm@3851:       fun print_subgoals (_, []) = ()
wenzelm@3851:         | print_subgoals (n, A :: As) = (Pretty.writeln (Pretty.blk (0,
wenzelm@3851:             [Pretty.str (" " ^ string_of_int n ^ ". "), prt_term A]));
wenzelm@3851:               print_subgoals (n + 1, As));
paulson@1591: 
wenzelm@3851:       val print_ffpairs =
wenzelm@3851:         print_list "Flex-flex pairs:" (prt_term o Logic.mk_flexpair);
wenzelm@3851: 
wenzelm@3851:       val print_consts = print_list "Constants:" prt_consts o consts_of;
wenzelm@3851:       val print_vars = print_list "Variables:" prt_vars o vars_of;
wenzelm@3851:       val print_varsT = print_list "Type variables:" prt_varsT o varsT_of;
wenzelm@3851: 
wenzelm@3851: 
wenzelm@3851:       val {prop, ...} = rep_thm state;
wenzelm@3851:       val (tpairs, As, B) = Logic.strip_horn prop;
wenzelm@3851:       val ngoals = length As;
paulson@1591: 
wenzelm@3851:       fun print_gs (types, sorts) =
wenzelm@3851:        (Pretty.writeln (prt_term B);
wenzelm@3851:         if ngoals = 0 then writeln "No subgoals!"
wenzelm@3851:         else if ngoals > maxgoals then
wenzelm@3851:           (print_subgoals (1, take (maxgoals, As));
wenzelm@3851:             writeln ("A total of " ^ string_of_int ngoals ^ " subgoals..."))
wenzelm@3851:         else print_subgoals (1, As);
wenzelm@3851: 
wenzelm@3851:         print_ffpairs tpairs;
paulson@1591: 
wenzelm@3851:         if types andalso ! show_consts then print_consts prop else ();
wenzelm@3851:         if types then print_vars prop else ();
wenzelm@3851:         if sorts then print_varsT prop else ());
wenzelm@3851:     in
wenzelm@3851:       setmp show_no_free_types true
wenzelm@3851:         (setmp show_types (! show_types orelse ! show_sorts)
wenzelm@3851:           (setmp show_sorts false print_gs))
wenzelm@3851:      (! show_types orelse ! show_sorts, ! show_sorts)
wenzelm@3851:   end;
paulson@1591: 
wenzelm@3851: end;
paulson@1591: 
paulson@1591: 
paulson@1591: end;
paulson@1591: 
paulson@1591: open Display;