src/Pure/Isar/isar_syn.ML
author wenzelm
Thu Apr 10 17:01:38 2008 +0200 (2008-04-10 ago)
changeset 26619 c348bbe7c87d
parent 26516 1bf210ac0a90
child 26672 f99956db6ccd
permissions -rw-r--r--
eliminated unused Toplevel.print3/three_buffers;
     1 (*  Title:      Pure/Isar/isar_syn.ML
     2     ID:         $Id$
     3     Author:     Markus Wenzel, TU Muenchen
     4 
     5 Isar/Pure outer syntax.
     6 *)
     7 
     8 structure IsarSyn: sig end =
     9 struct
    10 
    11 structure P = OuterParse and K = OuterKeyword;
    12 
    13 
    14 (** keywords **)
    15 
    16 (*keep keywords consistent with the parsers, otherwise be prepared for
    17   unexpected errors*)
    18 
    19 val _ = OuterSyntax.keywords
    20  ["!!", "!", "%", "(", ")", "+", ",", "--", ":", "::", ";", "<", "<=",
    21   "=", "==", "=>", "?", "[", "\\<equiv>", "\\<leftharpoondown>",
    22   "\\<rightharpoonup>", "\\<rightleftharpoons>", "\\<subseteq>", "]",
    23   "advanced", "and", "assumes", "attach", "begin", "binder", "concl",
    24   "constrains", "defines", "fixes", "for", "identifier", "if",
    25   "imports", "in", "includes", "infix", "infixl", "infixr", "is",
    26   "notes", "obtains", "open", "output", "overloaded", "shows",
    27   "structure", "unchecked", "uses", "where", "|"];
    28 
    29 
    30 (** init and exit **)
    31 
    32 val _ =
    33   OuterSyntax.command "theory" "begin theory" (K.tag_theory K.thy_begin)
    34     (ThyHeader.args >> (Toplevel.print oo IsarCmd.theory));
    35 
    36 val _ =
    37   OuterSyntax.command "end" "end (local) theory" (K.tag_theory K.thy_end)
    38     (Scan.succeed (Toplevel.exit o Toplevel.end_local_theory));
    39 
    40 
    41 (** markup commands **)
    42 
    43 val _ = OuterSyntax.markup_command ThyOutput.Markup "header" "theory header" K.diag
    44   (P.position P.text >> IsarCmd.add_header);
    45 
    46 val _ = OuterSyntax.markup_command ThyOutput.Markup "chapter" "chapter heading"
    47   K.thy_heading (P.opt_target -- P.position P.text >> IsarCmd.add_chapter);
    48 
    49 val _ = OuterSyntax.markup_command ThyOutput.Markup "section" "section heading"
    50   K.thy_heading (P.opt_target -- P.position P.text >> IsarCmd.add_section);
    51 
    52 val _ = OuterSyntax.markup_command ThyOutput.Markup "subsection" "subsection heading"
    53   K.thy_heading (P.opt_target -- P.position P.text >> IsarCmd.add_subsection);
    54 
    55 val _ =
    56   OuterSyntax.markup_command ThyOutput.Markup "subsubsection" "subsubsection heading"
    57   K.thy_heading (P.opt_target -- P.position P.text >> IsarCmd.add_subsubsection);
    58 
    59 val _ = OuterSyntax.markup_command ThyOutput.MarkupEnv "text" "formal comment (theory)"
    60   K.thy_decl (P.opt_target -- P.position P.text >> IsarCmd.add_text);
    61 
    62 val _ = OuterSyntax.markup_command ThyOutput.Verbatim "text_raw"
    63   "raw document preparation text"
    64   K.thy_decl (P.position P.text >> IsarCmd.add_text_raw);
    65 
    66 val _ = OuterSyntax.markup_command ThyOutput.Markup "sect" "formal comment (proof)"
    67   (K.tag_proof K.prf_heading) (P.position P.text >> IsarCmd.add_sect);
    68 
    69 val _ = OuterSyntax.markup_command ThyOutput.Markup "subsect" "formal comment (proof)"
    70   (K.tag_proof K.prf_heading) (P.position P.text >> IsarCmd.add_subsect);
    71 
    72 val _ = OuterSyntax.markup_command ThyOutput.Markup "subsubsect"
    73   "formal comment (proof)" (K.tag_proof K.prf_heading)
    74   (P.position P.text >> IsarCmd.add_subsubsect);
    75 
    76 val _ = OuterSyntax.markup_command ThyOutput.MarkupEnv "txt" "formal comment (proof)"
    77   (K.tag_proof K.prf_decl) (P.position P.text >> IsarCmd.add_txt);
    78 
    79 val _ = OuterSyntax.markup_command ThyOutput.Verbatim "txt_raw"
    80   "raw document preparation text (proof)" (K.tag_proof K.prf_decl)
    81   (P.position P.text >> IsarCmd.add_txt_raw);
    82 
    83 
    84 
    85 (** theory sections **)
    86 
    87 (* classes and sorts *)
    88 
    89 val _ =
    90   OuterSyntax.command "classes" "declare type classes" K.thy_decl
    91     (Scan.repeat1 (P.name -- Scan.optional ((P.$$$ "\\<subseteq>" || P.$$$ "<") |--
    92         P.!!! (P.list1 P.xname)) []) >> (Toplevel.theory o fold AxClass.axiomatize_class_cmd));
    93 
    94 val _ =
    95   OuterSyntax.command "classrel" "state inclusion of type classes (axiomatic!)" K.thy_decl
    96     (P.and_list1 (P.xname -- ((P.$$$ "\\<subseteq>" || P.$$$ "<") |-- P.!!! P.xname))
    97     >> (Toplevel.theory o AxClass.axiomatize_classrel_cmd));
    98 
    99 val _ =
   100   OuterSyntax.command "defaultsort" "declare default sort" K.thy_decl
   101     (P.sort >> (Toplevel.theory o Sign.add_defsort));
   102 
   103 val _ =
   104   OuterSyntax.command "axclass" "define axiomatic type class" K.thy_decl
   105     (P.name -- Scan.optional ((P.$$$ "\\<subseteq>" || P.$$$ "<") |--
   106         P.!!! (P.list1 P.xname)) []
   107         -- Scan.repeat (SpecParse.thm_name ":" -- (P.prop >> single))
   108       >> (fn (x, y) => Toplevel.theory (snd o Class.axclass_cmd x y)));
   109 
   110 
   111 (* types *)
   112 
   113 val _ =
   114   OuterSyntax.command "typedecl" "type declaration" K.thy_decl
   115     (P.type_args -- P.name -- P.opt_infix >> (fn ((args, a), mx) =>
   116       Toplevel.theory (ObjectLogic.typedecl (a, args, mx) #> snd)));
   117 
   118 val _ =
   119   OuterSyntax.command "types" "declare type abbreviations" K.thy_decl
   120     (Scan.repeat1
   121       (P.type_args -- P.name -- (P.$$$ "=" |-- P.!!! (P.typ -- P.opt_infix')))
   122       >> (Toplevel.theory o Sign.add_tyabbrs o
   123         map (fn ((args, a), (T, mx)) => (a, args, T, mx))));
   124 
   125 val _ =
   126   OuterSyntax.command "nonterminals" "declare types treated as grammar nonterminal symbols"
   127     K.thy_decl (Scan.repeat1 P.name >> (Toplevel.theory o Sign.add_nonterminals));
   128 
   129 val _ =
   130   OuterSyntax.command "arities" "state type arities (axiomatic!)" K.thy_decl
   131     (Scan.repeat1 P.arity >> (Toplevel.theory o fold AxClass.axiomatize_arity_cmd));
   132 
   133 
   134 (* consts and syntax *)
   135 
   136 val _ =
   137   OuterSyntax.command "judgment" "declare object-logic judgment" K.thy_decl
   138     (P.const >> (Toplevel.theory o ObjectLogic.add_judgment));
   139 
   140 val _ =
   141   OuterSyntax.command "consts" "declare constants" K.thy_decl
   142     (Scan.repeat1 P.const >> (Toplevel.theory o Sign.add_consts));
   143 
   144 val opt_overloaded = P.opt_keyword "overloaded";
   145 
   146 val _ =
   147   OuterSyntax.command "finalconsts" "declare constants as final" K.thy_decl
   148     (opt_overloaded -- Scan.repeat1 P.term >> (uncurry (Toplevel.theory oo Theory.add_finals)));
   149 
   150 val mode_spec =
   151   (P.$$$ "output" >> K ("", false)) || P.name -- Scan.optional (P.$$$ "output" >> K false) true;
   152 
   153 val opt_mode =
   154   Scan.optional (P.$$$ "(" |-- P.!!! (mode_spec --| P.$$$ ")")) Syntax.mode_default;
   155 
   156 val _ =
   157   OuterSyntax.command "syntax" "declare syntactic constants" K.thy_decl
   158     (opt_mode -- Scan.repeat1 P.const >> (Toplevel.theory o uncurry Sign.add_modesyntax));
   159 
   160 val _ =
   161   OuterSyntax.command "no_syntax" "delete syntax declarations" K.thy_decl
   162     (opt_mode -- Scan.repeat1 P.const >> (Toplevel.theory o uncurry Sign.del_modesyntax));
   163 
   164 
   165 (* translations *)
   166 
   167 val trans_pat =
   168   Scan.optional (P.$$$ "(" |-- P.!!! (P.xname --| P.$$$ ")")) "logic" -- P.string;
   169 
   170 fun trans_arrow toks =
   171   ((P.$$$ "\\<rightharpoonup>" || P.$$$ "=>") >> K Syntax.ParseRule ||
   172     (P.$$$ "\\<leftharpoondown>" || P.$$$ "<=") >> K Syntax.PrintRule ||
   173     (P.$$$ "\\<rightleftharpoons>" || P.$$$ "==") >> K Syntax.ParsePrintRule) toks;
   174 
   175 val trans_line =
   176   trans_pat -- P.!!! (trans_arrow -- trans_pat)
   177     >> (fn (left, (arr, right)) => arr (left, right));
   178 
   179 val _ =
   180   OuterSyntax.command "translations" "declare syntax translation rules" K.thy_decl
   181     (Scan.repeat1 trans_line >> (Toplevel.theory o Sign.add_trrules));
   182 
   183 val _ =
   184   OuterSyntax.command "no_translations" "remove syntax translation rules" K.thy_decl
   185     (Scan.repeat1 trans_line >> (Toplevel.theory o Sign.del_trrules));
   186 
   187 
   188 (* axioms and definitions *)
   189 
   190 val _ =
   191   OuterSyntax.command "axioms" "state arbitrary propositions (axiomatic!)" K.thy_decl
   192     (Scan.repeat1 SpecParse.spec_name >> (Toplevel.theory o IsarCmd.add_axioms));
   193 
   194 val opt_unchecked_overloaded =
   195   Scan.optional (P.$$$ "(" |-- P.!!!
   196     (((P.$$$ "unchecked" >> K true) -- Scan.optional (P.$$$ "overloaded" >> K true) false ||
   197       P.$$$ "overloaded" >> K (false, true)) --| P.$$$ ")")) (false, false);
   198 
   199 val _ =
   200   OuterSyntax.command "defs" "define constants" K.thy_decl
   201     (opt_unchecked_overloaded -- Scan.repeat1 SpecParse.spec_name
   202       >> (Toplevel.theory o IsarCmd.add_defs));
   203 
   204 
   205 (* old constdefs *)
   206 
   207 val old_constdecl =
   208   P.name --| P.where_ >> (fn x => (x, NONE, NoSyn)) ||
   209   P.name -- (P.$$$ "::" |-- P.!!! P.typ >> SOME) -- P.opt_mixfix'
   210     --| Scan.option P.where_ >> P.triple1 ||
   211   P.name -- (P.mixfix >> pair NONE) --| Scan.option P.where_ >> P.triple2;
   212 
   213 val old_constdef = Scan.option old_constdecl -- (SpecParse.opt_thm_name ":" -- P.prop);
   214 
   215 val structs =
   216   Scan.optional ((P.$$$ "(" -- P.$$$ "structure") |-- P.!!! (P.simple_fixes --| P.$$$ ")")) [];
   217 
   218 val _ =
   219   OuterSyntax.command "constdefs" "old-style constant definition" K.thy_decl
   220     (structs -- Scan.repeat1 old_constdef >> (Toplevel.theory o Constdefs.add_constdefs));
   221 
   222 
   223 (* constant definitions and abbreviations *)
   224 
   225 val constdecl =
   226   P.name --
   227     (P.where_ >> K (NONE, NoSyn) ||
   228       P.$$$ "::" |-- P.!!! ((P.typ >> SOME) -- P.opt_mixfix' --| P.where_) ||
   229       Scan.ahead (P.$$$ "(") |-- P.!!! (P.mixfix' --| P.where_ >> pair NONE))
   230   >> P.triple2;
   231 
   232 val constdef = Scan.option constdecl -- (SpecParse.opt_thm_name ":" -- P.prop);
   233 
   234 val _ =
   235   OuterSyntax.command "definition" "constant definition" K.thy_decl
   236     (P.opt_target -- constdef
   237     >> (fn (loc, args) => Toplevel.local_theory loc (#2 o Specification.definition_cmd args)));
   238 
   239 val _ =
   240   OuterSyntax.command "abbreviation" "constant abbreviation" K.thy_decl
   241     (P.opt_target -- opt_mode -- (Scan.option constdecl -- P.prop)
   242     >> (fn ((loc, mode), args) =>
   243         Toplevel.local_theory loc (Specification.abbreviation_cmd mode args)));
   244 
   245 val _ =
   246   OuterSyntax.command "notation" "add notation for constants / fixed variables" K.thy_decl
   247     (P.opt_target -- opt_mode -- P.and_list1 (P.xname -- SpecParse.locale_mixfix)
   248     >> (fn ((loc, mode), args) =>
   249         Toplevel.local_theory loc (Specification.notation_cmd true mode args)));
   250 
   251 val _ =
   252   OuterSyntax.command "no_notation" "delete notation for constants / fixed variables" K.thy_decl
   253     (P.opt_target -- opt_mode -- P.and_list1 (P.xname -- SpecParse.locale_mixfix)
   254     >> (fn ((loc, mode), args) =>
   255         Toplevel.local_theory loc (Specification.notation_cmd false mode args)));
   256 
   257 
   258 (* constant specifications *)
   259 
   260 val _ =
   261   OuterSyntax.command "axiomatization" "axiomatic constant specification" K.thy_decl
   262     (P.opt_target --
   263      (Scan.optional P.fixes [] --
   264       Scan.optional (P.where_ |-- P.!!! (P.and_list1 SpecParse.spec)) [])
   265     >> (fn (loc, (x, y)) => Toplevel.local_theory loc (#2 o Specification.axiomatization_cmd x y)));
   266 
   267 
   268 (* theorems *)
   269 
   270 fun theorems kind = P.opt_target -- SpecParse.name_facts
   271   >> (fn (loc, args) => Toplevel.local_theory loc (#2 o Specification.theorems_cmd kind args));
   272 
   273 val _ =
   274   OuterSyntax.command "theorems" "define theorems" K.thy_decl (theorems Thm.theoremK);
   275 
   276 val _ =
   277   OuterSyntax.command "lemmas" "define lemmas" K.thy_decl (theorems Thm.lemmaK);
   278 
   279 val _ =
   280   OuterSyntax.command "declare" "declare theorems (improper)" K.thy_decl
   281     (P.opt_target -- (P.and_list1 SpecParse.xthms1 >> flat)
   282       >> (fn (loc, args) => Toplevel.local_theory loc
   283           (#2 o Specification.theorems_cmd "" [(("", []), args)])));
   284 
   285 
   286 (* name space entry path *)
   287 
   288 val _ =
   289   OuterSyntax.command "global" "disable prefixing of theory name" K.thy_decl
   290     (Scan.succeed (Toplevel.theory Sign.root_path));
   291 
   292 val _ =
   293   OuterSyntax.command "local" "enable prefixing of theory name" K.thy_decl
   294     (Scan.succeed (Toplevel.theory Sign.local_path));
   295 
   296 val _ =
   297   OuterSyntax.command "hide" "hide names from given name space" K.thy_decl
   298     ((P.opt_keyword "open" >> not) -- (P.name -- Scan.repeat1 P.xname) >>
   299       (Toplevel.theory o uncurry Sign.hide_names));
   300 
   301 
   302 (* use ML text *)
   303 
   304 val _ =
   305   OuterSyntax.command "use" "eval ML text from file" (K.tag_ml K.thy_decl)
   306     (P.path >> (Toplevel.generic_theory o ThyInfo.exec_file false));
   307 
   308 val _ =
   309   OuterSyntax.command "ML" "eval ML text (diagnostic)" (K.tag_ml K.thy_decl)
   310     (P.position P.text >> (fn (txt, pos) =>
   311       Toplevel.generic_theory (ML_Context.exec (fn () => ML_Context.eval true pos txt))));
   312 
   313 val _ =
   314   OuterSyntax.command "ML_val" "eval ML text (diagnostic)" (K.tag_ml K.diag)
   315     (P.position P.text >> IsarCmd.ml_diag true);
   316 
   317 val _ =
   318   OuterSyntax.command "ML_command" "silently eval ML text (diagnostic)" (K.tag_ml K.diag)
   319     (P.position P.text >> (Toplevel.no_timing oo IsarCmd.ml_diag false));
   320 
   321 val _ =
   322   OuterSyntax.command "setup" "apply ML theory setup" (K.tag_ml K.thy_decl)
   323     (P.position P.text >> (Toplevel.theory o IsarCmd.generic_setup));
   324 
   325 val _ =
   326   OuterSyntax.command "method_setup" "define proof method in ML" (K.tag_ml K.thy_decl)
   327     (P.name -- P.!!! (P.$$$ "=" |-- P.position P.text -- P.text)
   328     >> (fn (name, (txt, cmt)) => Toplevel.theory (Method.method_setup name txt cmt)));
   329 
   330 val _ =
   331   OuterSyntax.command "declaration" "generic ML declaration" (K.tag_ml K.thy_decl)
   332     (P.opt_target -- P.position P.text
   333     >> (fn (loc, txt) => Toplevel.local_theory loc (IsarCmd.declaration txt)));
   334 
   335 val _ =
   336   OuterSyntax.command "simproc_setup" "define simproc in ML" (K.tag_ml K.thy_decl)
   337     (P.opt_target --
   338       P.name -- (P.$$$ "(" |-- P.enum1 "|" P.term --| P.$$$ ")" --| P.$$$ "=") --
   339       P.position P.text -- Scan.optional (P.$$$ "identifier" |-- Scan.repeat1 P.xname) []
   340     >> (fn ((((loc, a), b), c), d) => Toplevel.local_theory loc (IsarCmd.simproc_setup a b c d)));
   341 
   342 
   343 (* translation functions *)
   344 
   345 val trfun = P.opt_keyword "advanced" -- P.position P.text;
   346 
   347 val _ =
   348   OuterSyntax.command "parse_ast_translation" "install parse ast translation functions"
   349     (K.tag_ml K.thy_decl)
   350     (trfun >> (Toplevel.theory o IsarCmd.parse_ast_translation));
   351 
   352 val _ =
   353   OuterSyntax.command "parse_translation" "install parse translation functions"
   354     (K.tag_ml K.thy_decl)
   355     (trfun >> (Toplevel.theory o IsarCmd.parse_translation));
   356 
   357 val _ =
   358   OuterSyntax.command "print_translation" "install print translation functions"
   359     (K.tag_ml K.thy_decl)
   360     (trfun >> (Toplevel.theory o IsarCmd.print_translation));
   361 
   362 val _ =
   363   OuterSyntax.command "typed_print_translation" "install typed print translation functions"
   364     (K.tag_ml K.thy_decl)
   365     (trfun >> (Toplevel.theory o IsarCmd.typed_print_translation));
   366 
   367 val _ =
   368   OuterSyntax.command "print_ast_translation" "install print ast translation functions"
   369     (K.tag_ml K.thy_decl)
   370     (trfun >> (Toplevel.theory o IsarCmd.print_ast_translation));
   371 
   372 val _ =
   373   OuterSyntax.command "token_translation" "install token translation functions"
   374     (K.tag_ml K.thy_decl)
   375     (P.position P.text >> (Toplevel.theory o IsarCmd.token_translation));
   376 
   377 
   378 (* oracles *)
   379 
   380 val _ =
   381   OuterSyntax.command "oracle" "declare oracle" (K.tag_ml K.thy_decl)
   382     (P.name -- (P.$$$ "(" |-- P.text --| P.$$$ ")" --| P.$$$ "=")
   383       -- P.position P.text >> (fn ((x, y), z) => Toplevel.theory (IsarCmd.oracle x y z)));
   384 
   385 
   386 (* local theories *)
   387 
   388 val _ =
   389   OuterSyntax.command "context" "enter local theory context" K.thy_decl
   390     (P.name --| P.begin >> (fn name =>
   391       Toplevel.print o Toplevel.begin_local_theory true (TheoryTarget.context name)));
   392 
   393 
   394 (* locales *)
   395 
   396 val locale_val =
   397   SpecParse.locale_expr --
   398     Scan.optional (P.$$$ "+" |-- P.!!! (Scan.repeat1 SpecParse.context_element)) [] ||
   399   Scan.repeat1 SpecParse.context_element >> pair Locale.empty;
   400 
   401 val _ =
   402   OuterSyntax.command "locale" "define named proof context" K.thy_decl
   403     ((P.opt_keyword "open" >> (fn true => NONE | false => SOME "")) --
   404       P.name -- Scan.optional (P.$$$ "=" |-- P.!!! locale_val) (Locale.empty, []) -- P.opt_begin
   405       >> (fn (((is_open, name), (expr, elems)), begin) =>
   406           (begin ? Toplevel.print) o Toplevel.begin_local_theory begin
   407             (Locale.add_locale is_open name expr elems #-> TheoryTarget.begin)));
   408 
   409 val _ =
   410   OuterSyntax.command "interpretation"
   411     "prove and register interpretation of locale expression in theory or locale" K.thy_goal
   412     (P.xname --| (P.$$$ "\\<subseteq>" || P.$$$ "<") -- P.!!! SpecParse.locale_expr
   413       >> (Toplevel.print oo (Toplevel.theory_to_proof o Locale.interpretation_in_locale I)) ||
   414       SpecParse.opt_thm_name ":" -- SpecParse.locale_expr -- SpecParse.locale_insts
   415         >> (fn ((x, y), z) => Toplevel.print o
   416             Toplevel.theory_to_proof (Locale.interpretation I (apfst (pair true) x) y z)));
   417 
   418 val _ =
   419   OuterSyntax.command "interpret"
   420     "prove and register interpretation of locale expression in proof context"
   421     (K.tag_proof K.prf_goal)
   422     (SpecParse.opt_thm_name ":" -- SpecParse.locale_expr -- SpecParse.locale_insts
   423       >> (fn ((x, y), z) => Toplevel.print o
   424           Toplevel.proof' (Locale.interpret Seq.single (apfst (pair true) x) y z)));
   425 
   426 
   427 (* classes *)
   428 
   429 val class_val =
   430   SpecParse.class_expr --
   431     Scan.optional (P.$$$ "+" |-- P.!!! (Scan.repeat1 SpecParse.context_element)) [] ||
   432   Scan.repeat1 SpecParse.context_element >> pair [];
   433 
   434 val _ =
   435   OuterSyntax.command "class" "define type class" K.thy_decl
   436    (P.name -- (P.$$$ "=" |-- class_val) -- P.opt_begin
   437     >> (fn ((name, (supclasses, elems)), begin) =>
   438         (begin ? Toplevel.print) o Toplevel.begin_local_theory begin
   439           (Class.class_cmd name supclasses elems #-> TheoryTarget.begin)));
   440 
   441 val _ =
   442   OuterSyntax.command "subclass" "prove a subclass relation" K.thy_goal
   443     (P.opt_target -- P.xname >> (fn (loc, class) =>
   444       Toplevel.print o Toplevel.local_theory_to_proof loc (Subclass.subclass_cmd class)));
   445 
   446 val _ =
   447   OuterSyntax.command "instantiation" "instantiate and prove type arity" K.thy_decl
   448    (P.multi_arity --| P.begin
   449      >> (fn arities => Toplevel.print o
   450          Toplevel.begin_local_theory true (Instance.instantiation_cmd arities)));
   451 
   452 val _ =
   453   OuterSyntax.command "instance" "prove type arity or subclass relation" K.thy_goal
   454   ((P.xname -- ((P.$$$ "\\<subseteq>" || P.$$$ "<") |-- P.!!! P.xname) >> Class.classrel_cmd ||
   455     P.arity -- Scan.repeat (SpecParse.opt_thm_name ":" -- P.prop)
   456       >> (fn (arity, defs) => Instance.instance_cmd arity defs))
   457     >> (Toplevel.print oo Toplevel.theory_to_proof)
   458   || Scan.succeed (Toplevel.print o Toplevel.local_theory_to_proof NONE (Class.instantiation_instance I)));
   459 
   460 
   461 (* arbitrary overloading *)
   462 
   463 val _ =
   464   OuterSyntax.command "overloading" "overloaded definitions" K.thy_decl
   465    (Scan.repeat1 (P.name --| (P.$$$ "\\<equiv>" || P.$$$ "==") -- P.term --
   466       Scan.optional (P.$$$ "(" |-- (P.$$$ "unchecked" >> K false) --| P.$$$ ")") true
   467       >> P.triple1) --| P.begin
   468    >> (fn operations => Toplevel.print o
   469          Toplevel.begin_local_theory true (TheoryTarget.overloading_cmd operations)));
   470 
   471 
   472 (* code generation *)
   473 
   474 val _ =
   475   OuterSyntax.command "code_datatype" "define set of code datatype constructors" K.thy_decl
   476     (Scan.repeat1 P.term >> (Toplevel.theory o Code.add_datatype_cmd));
   477 
   478 
   479 
   480 (** proof commands **)
   481 
   482 (* statements *)
   483 
   484 fun gen_theorem kind =
   485   OuterSyntax.command kind ("state " ^ kind) K.thy_goal
   486     (P.opt_target -- Scan.optional (SpecParse.opt_thm_name ":" --|
   487       Scan.ahead (SpecParse.locale_keyword || SpecParse.statement_keyword)) ("", []) --
   488       SpecParse.general_statement >> (fn ((loc, a), (elems, concl)) =>
   489       (Toplevel.print o
   490        Toplevel.local_theory_to_proof' loc
   491          (Specification.theorem_cmd kind NONE (K I) a elems concl))));
   492 
   493 val _ = gen_theorem Thm.theoremK;
   494 val _ = gen_theorem Thm.lemmaK;
   495 val _ = gen_theorem Thm.corollaryK;
   496 
   497 val _ =
   498   OuterSyntax.command "have" "state local goal"
   499     (K.tag_proof K.prf_goal)
   500     (SpecParse.statement >> ((Toplevel.print oo Toplevel.proof') o IsarCmd.have));
   501 
   502 val _ =
   503   OuterSyntax.command "hence" "abbreviates \"then have\""
   504     (K.tag_proof K.prf_goal)
   505     (SpecParse.statement >> ((Toplevel.print oo Toplevel.proof') o IsarCmd.hence));
   506 
   507 val _ =
   508   OuterSyntax.command "show" "state local goal, solving current obligation"
   509     (K.tag_proof K.prf_asm_goal)
   510     (SpecParse.statement >> ((Toplevel.print oo Toplevel.proof') o IsarCmd.show));
   511 
   512 val _ =
   513   OuterSyntax.command "thus" "abbreviates \"then show\""
   514     (K.tag_proof K.prf_asm_goal)
   515     (SpecParse.statement >> ((Toplevel.print oo Toplevel.proof') o IsarCmd.thus));
   516 
   517 
   518 (* facts *)
   519 
   520 val facts = P.and_list1 SpecParse.xthms1;
   521 
   522 val _ =
   523   OuterSyntax.command "then" "forward chaining"
   524     (K.tag_proof K.prf_chain)
   525     (Scan.succeed (Toplevel.print o Toplevel.proof Proof.chain));
   526 
   527 val _ =
   528   OuterSyntax.command "from" "forward chaining from given facts"
   529     (K.tag_proof K.prf_chain)
   530     (facts >> (Toplevel.print oo (Toplevel.proof o Proof.from_thmss)));
   531 
   532 val _ =
   533   OuterSyntax.command "with" "forward chaining from given and current facts"
   534     (K.tag_proof K.prf_chain)
   535     (facts >> (Toplevel.print oo (Toplevel.proof o Proof.with_thmss)));
   536 
   537 val _ =
   538   OuterSyntax.command "note" "define facts"
   539     (K.tag_proof K.prf_decl)
   540     (SpecParse.name_facts >> (Toplevel.print oo (Toplevel.proof o Proof.note_thmss)));
   541 
   542 val _ =
   543   OuterSyntax.command "using" "augment goal facts"
   544     (K.tag_proof K.prf_decl)
   545     (facts >> (Toplevel.print oo (Toplevel.proof o Proof.using)));
   546 
   547 val _ =
   548   OuterSyntax.command "unfolding" "unfold definitions in goal and facts"
   549     (K.tag_proof K.prf_decl)
   550     (facts >> (Toplevel.print oo (Toplevel.proof o Proof.unfolding)));
   551 
   552 
   553 (* proof context *)
   554 
   555 val _ =
   556   OuterSyntax.command "fix" "fix local variables (Skolem constants)"
   557     (K.tag_proof K.prf_asm)
   558     (P.fixes >> (Toplevel.print oo (Toplevel.proof o Proof.fix)));
   559 
   560 val _ =
   561   OuterSyntax.command "assume" "assume propositions"
   562     (K.tag_proof K.prf_asm)
   563     (SpecParse.statement >> (Toplevel.print oo (Toplevel.proof o Proof.assume)));
   564 
   565 val _ =
   566   OuterSyntax.command "presume" "assume propositions, to be established later"
   567     (K.tag_proof K.prf_asm)
   568     (SpecParse.statement >> (Toplevel.print oo (Toplevel.proof o Proof.presume)));
   569 
   570 val _ =
   571   OuterSyntax.command "def" "local definition"
   572     (K.tag_proof K.prf_asm)
   573     (P.and_list1
   574       (SpecParse.opt_thm_name ":" --
   575         ((P.name -- P.opt_mixfix) -- ((P.$$$ "\\<equiv>" || P.$$$ "==") |-- P.!!! P.termp)))
   576     >> (Toplevel.print oo (Toplevel.proof o Proof.def)));
   577 
   578 val _ =
   579   OuterSyntax.command "obtain" "generalized existence"
   580     (K.tag_proof K.prf_asm_goal)
   581     (P.parname -- Scan.optional (P.fixes --| P.where_) [] -- SpecParse.statement
   582       >> (fn ((x, y), z) => Toplevel.print o Toplevel.proof' (Obtain.obtain x y z)));
   583 
   584 val _ =
   585   OuterSyntax.command "guess" "wild guessing (unstructured)"
   586     (K.tag_proof K.prf_asm_goal)
   587     (Scan.optional P.fixes [] >> (Toplevel.print oo (Toplevel.proof' o Obtain.guess)));
   588 
   589 val _ =
   590   OuterSyntax.command "let" "bind text variables"
   591     (K.tag_proof K.prf_decl)
   592     (P.and_list1 (P.enum1 "and" P.term -- (P.$$$ "=" |-- P.term))
   593       >> (Toplevel.print oo (Toplevel.proof o Proof.let_bind)));
   594 
   595 val case_spec =
   596   (P.$$$ "(" |-- P.!!! (P.xname -- Scan.repeat1 (P.maybe P.name) --| P.$$$ ")") ||
   597     P.xname >> rpair []) -- SpecParse.opt_attribs >> P.triple1;
   598 
   599 val _ =
   600   OuterSyntax.command "case" "invoke local context"
   601     (K.tag_proof K.prf_asm)
   602     (case_spec >> (Toplevel.print oo (Toplevel.proof o Proof.invoke_case)));
   603 
   604 
   605 (* proof structure *)
   606 
   607 val _ =
   608   OuterSyntax.command "{" "begin explicit proof block"
   609     (K.tag_proof K.prf_open)
   610     (Scan.succeed (Toplevel.print o Toplevel.proof Proof.begin_block));
   611 
   612 val _ =
   613   OuterSyntax.command "}" "end explicit proof block"
   614     (K.tag_proof K.prf_close)
   615     (Scan.succeed (Toplevel.print o Toplevel.proof Proof.end_block));
   616 
   617 val _ =
   618   OuterSyntax.command "next" "enter next proof block"
   619     (K.tag_proof K.prf_block)
   620     (Scan.succeed (Toplevel.print o Toplevel.proof Proof.next_block));
   621 
   622 
   623 (* end proof *)
   624 
   625 val _ =
   626   OuterSyntax.command "qed" "conclude (sub-)proof"
   627     (K.tag_proof K.qed_block)
   628     (Scan.option Method.parse >> (Toplevel.print oo IsarCmd.qed));
   629 
   630 val _ =
   631   OuterSyntax.command "by" "terminal backward proof"
   632     (K.tag_proof K.qed)
   633     (Method.parse -- Scan.option Method.parse >> (Toplevel.print oo IsarCmd.terminal_proof));
   634 
   635 val _ =
   636   OuterSyntax.command ".." "default proof"
   637     (K.tag_proof K.qed)
   638     (Scan.succeed (Toplevel.print o IsarCmd.default_proof));
   639 
   640 val _ =
   641   OuterSyntax.command "." "immediate proof"
   642     (K.tag_proof K.qed)
   643     (Scan.succeed (Toplevel.print o IsarCmd.immediate_proof));
   644 
   645 val _ =
   646   OuterSyntax.command "done" "done proof"
   647     (K.tag_proof K.qed)
   648     (Scan.succeed (Toplevel.print o IsarCmd.done_proof));
   649 
   650 val _ =
   651   OuterSyntax.command "sorry" "skip proof (quick-and-dirty mode only!)"
   652     (K.tag_proof K.qed)
   653     (Scan.succeed (Toplevel.print o IsarCmd.skip_proof));
   654 
   655 val _ =
   656   OuterSyntax.command "oops" "forget proof"
   657     (K.tag_proof K.qed_global)
   658     (Scan.succeed Toplevel.forget_proof);
   659 
   660 
   661 (* proof steps *)
   662 
   663 val _ =
   664   OuterSyntax.command "defer" "shuffle internal proof state"
   665     (K.tag_proof K.prf_script)
   666     (Scan.option P.nat >> (Toplevel.print oo (Toplevel.proofs o Proof.defer)));
   667 
   668 val _ =
   669   OuterSyntax.command "prefer" "shuffle internal proof state"
   670     (K.tag_proof K.prf_script)
   671     (P.nat >> (Toplevel.print oo (Toplevel.proofs o Proof.prefer)));
   672 
   673 val _ =
   674   OuterSyntax.command "apply" "initial refinement step (unstructured)"
   675     (K.tag_proof K.prf_script)
   676     (Method.parse >> (Toplevel.print oo (Toplevel.proofs o Proof.apply)));
   677 
   678 val _ =
   679   OuterSyntax.command "apply_end" "terminal refinement (unstructured)"
   680     (K.tag_proof K.prf_script)
   681     (Method.parse >> (Toplevel.print oo (Toplevel.proofs o Proof.apply_end)));
   682 
   683 val _ =
   684   OuterSyntax.command "proof" "backward proof"
   685     (K.tag_proof K.prf_block)
   686     (Scan.option Method.parse >> (fn m => Toplevel.print o
   687       Toplevel.actual_proof (ProofHistory.applys (Proof.proof m)) o
   688       Toplevel.skip_proof (History.apply (fn i => i + 1))));
   689 
   690 
   691 (* calculational proof commands *)
   692 
   693 val calc_args =
   694   Scan.option (P.$$$ "(" |-- P.!!! ((SpecParse.xthms1 --| P.$$$ ")")));
   695 
   696 val _ =
   697   OuterSyntax.command "also" "combine calculation and current facts"
   698     (K.tag_proof K.prf_decl)
   699     (calc_args >> (Toplevel.proofs' o Calculation.also));
   700 
   701 val _ =
   702   OuterSyntax.command "finally" "combine calculation and current facts, exhibit result"
   703     (K.tag_proof K.prf_chain)
   704     (calc_args >> (Toplevel.proofs' o Calculation.finally_));
   705 
   706 val _ =
   707   OuterSyntax.command "moreover" "augment calculation by current facts"
   708     (K.tag_proof K.prf_decl)
   709     (Scan.succeed (Toplevel.proof' Calculation.moreover));
   710 
   711 val _ =
   712   OuterSyntax.command "ultimately" "augment calculation by current facts, exhibit result"
   713     (K.tag_proof K.prf_chain)
   714     (Scan.succeed (Toplevel.proof' Calculation.ultimately));
   715 
   716 
   717 (* proof navigation *)
   718 
   719 val _ =
   720   OuterSyntax.command "back" "backtracking of proof command"
   721     (K.tag_proof K.prf_script)
   722     (Scan.succeed (Toplevel.print o IsarCmd.back));
   723 
   724 
   725 (* history *)
   726 
   727 val _ =
   728   OuterSyntax.improper_command "cannot_undo" "report 'cannot undo' error message" K.control
   729     (P.name >> (Toplevel.no_timing oo IsarCmd.cannot_undo));
   730 
   731 val _ =
   732   OuterSyntax.improper_command "redo" "redo last command" K.control
   733     (Scan.succeed (Toplevel.no_timing o Toplevel.print o IsarCmd.redo));
   734 
   735 val _ =
   736   OuterSyntax.improper_command "undos_proof" "undo last proof commands" K.control
   737     (P.nat >> ((Toplevel.no_timing o Toplevel.print) oo IsarCmd.undos_proof));
   738 
   739 val _ =
   740   OuterSyntax.improper_command "undo" "undo last command" K.control
   741     (Scan.succeed (Toplevel.no_timing o IsarCmd.undo));
   742 
   743 val _ =
   744   OuterSyntax.improper_command "kill" "kill current history node" K.control
   745     (Scan.succeed (Toplevel.no_timing o Toplevel.print o IsarCmd.kill));
   746 
   747 
   748 (* nested command *)
   749 
   750 val _ =
   751   OuterSyntax.improper_command "Isabelle.command" "nested Isabelle command" K.control
   752     ((Scan.optional P.properties [] -- P.position P.string) :|-- (fn (props, arg) =>
   753       Scan.succeed (K (IsarCmd.nested_command props arg))
   754         handle ERROR msg => Scan.fail_with (K msg)));
   755 
   756 
   757 
   758 (** diagnostic commands (for interactive mode only) **)
   759 
   760 val opt_modes = Scan.optional (P.$$$ "(" |-- P.!!! (Scan.repeat1 P.xname --| P.$$$ ")")) [];
   761 val opt_bang = Scan.optional (P.$$$ "!" >> K true) false;
   762 
   763 val _ =
   764   OuterSyntax.improper_command "pretty_setmargin" "change default margin for pretty printing"
   765     K.diag (P.nat >> (Toplevel.no_timing oo IsarCmd.pretty_setmargin));
   766 
   767 val _ =
   768   OuterSyntax.improper_command "help" "print outer syntax commands" K.diag
   769     (Scan.succeed (Toplevel.no_timing o Toplevel.imperative OuterSyntax.print_outer_syntax));
   770 
   771 val _ =
   772   OuterSyntax.improper_command "print_commands" "print outer syntax commands" K.diag
   773     (Scan.succeed (Toplevel.no_timing o Toplevel.imperative OuterSyntax.print_outer_syntax));
   774 
   775 val _ =
   776   OuterSyntax.improper_command "print_configs" "print configuration options" K.diag
   777     (Scan.succeed (Toplevel.no_timing o IsarCmd.print_configs));
   778 
   779 val _ =
   780   OuterSyntax.improper_command "print_context" "print theory context name" K.diag
   781     (Scan.succeed (Toplevel.no_timing o IsarCmd.print_context));
   782 
   783 val _ =
   784   OuterSyntax.improper_command "print_theory" "print logical theory contents (verbose!)" K.diag
   785     (opt_bang >> (Toplevel.no_timing oo IsarCmd.print_theory));
   786 
   787 val _ =
   788   OuterSyntax.improper_command "print_syntax" "print inner syntax of context (verbose!)" K.diag
   789     (Scan.succeed (Toplevel.no_timing o IsarCmd.print_syntax));
   790 
   791 val _ =
   792   OuterSyntax.improper_command "print_abbrevs" "print constant abbreviation of context" K.diag
   793     (Scan.succeed (Toplevel.no_timing o IsarCmd.print_abbrevs));
   794 
   795 val _ =
   796   OuterSyntax.improper_command "print_theorems"
   797       "print theorems of local theory or proof context" K.diag
   798     (Scan.succeed (Toplevel.no_timing o IsarCmd.print_theorems));
   799 
   800 val _ =
   801   OuterSyntax.improper_command "print_locales" "print locales of this theory" K.diag
   802     (Scan.succeed (Toplevel.no_timing o IsarCmd.print_locales));
   803 
   804 val _ =
   805   OuterSyntax.improper_command "print_classes" "print classes of this theory" K.diag
   806     (Scan.succeed (Toplevel.no_timing o Toplevel.unknown_theory
   807       o Toplevel.keep (Class.print_classes o Toplevel.theory_of)));
   808 
   809 val _ =
   810   OuterSyntax.improper_command "print_locale" "print locale expression in this theory" K.diag
   811     (opt_bang -- locale_val >> (Toplevel.no_timing oo IsarCmd.print_locale));
   812 
   813 val _ =
   814   OuterSyntax.improper_command "print_interps"
   815     "print interpretations of named locale" K.diag
   816     (Scan.optional (P.$$$ "!" >> K true) false -- P.xname
   817       >> (Toplevel.no_timing oo uncurry IsarCmd.print_registrations));
   818 
   819 val _ =
   820   OuterSyntax.improper_command "print_attributes" "print attributes of this theory" K.diag
   821     (Scan.succeed (Toplevel.no_timing o IsarCmd.print_attributes));
   822 
   823 val _ =
   824   OuterSyntax.improper_command "print_simpset" "print context of Simplifier" K.diag
   825     (Scan.succeed (Toplevel.no_timing o IsarCmd.print_simpset));
   826 
   827 val _ =
   828   OuterSyntax.improper_command "print_rules" "print intro/elim rules" K.diag
   829     (Scan.succeed (Toplevel.no_timing o IsarCmd.print_rules));
   830 
   831 val _ =
   832   OuterSyntax.improper_command "print_trans_rules" "print transitivity rules" K.diag
   833     (Scan.succeed (Toplevel.no_timing o IsarCmd.print_trans_rules));
   834 
   835 val _ =
   836   OuterSyntax.improper_command "print_methods" "print methods of this theory" K.diag
   837     (Scan.succeed (Toplevel.no_timing o IsarCmd.print_methods));
   838 
   839 val _ =
   840   OuterSyntax.improper_command "print_antiquotations" "print antiquotations (global)" K.diag
   841     (Scan.succeed (Toplevel.no_timing o IsarCmd.print_antiquotations));
   842 
   843 val _ =
   844   OuterSyntax.improper_command "thy_deps" "visualize theory dependencies"
   845     K.diag (Scan.succeed (Toplevel.no_timing o IsarCmd.thy_deps));
   846 
   847 val _ =
   848   OuterSyntax.improper_command "class_deps" "visualize class dependencies"
   849     K.diag (Scan.succeed (Toplevel.no_timing o IsarCmd.class_deps));
   850 
   851 val _ =
   852   OuterSyntax.improper_command "thm_deps" "visualize theorem dependencies"
   853     K.diag (SpecParse.xthms1 >> (Toplevel.no_timing oo IsarCmd.thm_deps));
   854 
   855 local
   856 
   857 val criterion =
   858   P.reserved "name" |-- P.!!! (P.$$$ ":" |-- P.xname) >> FindTheorems.Name ||
   859   P.reserved "intro" >> K FindTheorems.Intro ||
   860   P.reserved "elim" >> K FindTheorems.Elim ||
   861   P.reserved "dest" >> K FindTheorems.Dest ||
   862   P.reserved "simp" |-- P.!!! (P.$$$ ":" |-- P.term) >> FindTheorems.Simp ||
   863   P.term >> FindTheorems.Pattern;
   864 
   865 val options =
   866   Scan.optional
   867     (P.$$$ "(" |--
   868       P.!!! (Scan.option P.nat -- Scan.optional (P.reserved "with_dups" >> K false) true
   869         --| P.$$$ ")")) (NONE, true);
   870 in
   871 
   872 val _ =
   873   OuterSyntax.improper_command "find_theorems" "print theorems meeting specified criteria" K.diag
   874     (options -- Scan.repeat (((Scan.option P.minus >> is_none) -- criterion))
   875       >> (Toplevel.no_timing oo IsarCmd.find_theorems));
   876 
   877 end;
   878 
   879 val _ =
   880   OuterSyntax.improper_command "print_binds" "print term bindings of proof context" K.diag
   881     (Scan.succeed (Toplevel.no_timing o IsarCmd.print_binds));
   882 
   883 val _ =
   884   OuterSyntax.improper_command "print_facts" "print facts of proof context" K.diag
   885     (Scan.succeed (Toplevel.no_timing o IsarCmd.print_facts));
   886 
   887 val _ =
   888   OuterSyntax.improper_command "print_cases" "print cases of proof context" K.diag
   889     (Scan.succeed (Toplevel.no_timing o IsarCmd.print_cases));
   890 
   891 val _ =
   892   OuterSyntax.improper_command "print_statement" "print theorems as long statements" K.diag
   893     (opt_modes -- SpecParse.xthms1 >> (Toplevel.no_timing oo IsarCmd.print_stmts));
   894 
   895 val _ =
   896   OuterSyntax.improper_command "thm" "print theorems" K.diag
   897     (opt_modes -- SpecParse.xthms1 >> (Toplevel.no_timing oo IsarCmd.print_thms));
   898 
   899 val _ =
   900   OuterSyntax.improper_command "prf" "print proof terms of theorems" K.diag
   901     (opt_modes -- Scan.option SpecParse.xthms1
   902       >> (Toplevel.no_timing oo IsarCmd.print_prfs false));
   903 
   904 val _ =
   905   OuterSyntax.improper_command "full_prf" "print full proof terms of theorems" K.diag
   906     (opt_modes -- Scan.option SpecParse.xthms1 >> (Toplevel.no_timing oo IsarCmd.print_prfs true));
   907 
   908 val _ =
   909   OuterSyntax.improper_command "prop" "read and print proposition" K.diag
   910     (opt_modes -- P.term >> (Toplevel.no_timing oo IsarCmd.print_prop));
   911 
   912 val _ =
   913   OuterSyntax.improper_command "term" "read and print term" K.diag
   914     (opt_modes -- P.term >> (Toplevel.no_timing oo IsarCmd.print_term));
   915 
   916 val _ =
   917   OuterSyntax.improper_command "typ" "read and print type" K.diag
   918     (opt_modes -- P.typ >> (Toplevel.no_timing oo IsarCmd.print_type));
   919 
   920 val _ =
   921   OuterSyntax.improper_command "print_codesetup" "print code generator setup of this theory" K.diag
   922     (Scan.succeed
   923       (Toplevel.no_timing o Toplevel.unknown_theory o Toplevel.keep
   924         (Code.print_codesetup o Toplevel.theory_of)));
   925 
   926 val _ =
   927   OuterSyntax.improper_command "unused_thms" "find unused theorems" K.diag
   928     (Scan.option ((Scan.repeat1 (Scan.unless P.minus P.name) --| P.minus) --
   929        Scan.option (Scan.repeat1 (Scan.unless P.minus P.name))) >>
   930          (Toplevel.no_timing oo IsarCmd.unused_thms));
   931 
   932 
   933 (** system commands (for interactive mode only) **)
   934 
   935 val _ =
   936   OuterSyntax.improper_command "cd" "change current working directory" K.diag
   937     (P.path >> (Toplevel.no_timing oo IsarCmd.cd));
   938 
   939 val _ =
   940   OuterSyntax.improper_command "pwd" "print current working directory" K.diag
   941     (Scan.succeed (Toplevel.no_timing o IsarCmd.pwd));
   942 
   943 val _ =
   944   OuterSyntax.improper_command "use_thy" "use theory file" K.diag
   945     (P.name >> (fn name =>
   946       Toplevel.no_timing o Toplevel.imperative (fn () => ThyInfo.use_thy name)));
   947 
   948 val _ =
   949   OuterSyntax.improper_command "touch_thy" "outdate theory, including descendants" K.diag
   950     (P.name >> (Toplevel.no_timing oo IsarCmd.touch_thy));
   951 
   952 val _ =
   953   OuterSyntax.improper_command "touch_child_thys" "outdate child theories" K.diag
   954     (P.name >> (Toplevel.no_timing oo IsarCmd.touch_child_thys));
   955 
   956 val _ =
   957   OuterSyntax.improper_command "remove_thy" "remove theory from loader database" K.diag
   958     (P.name >> (Toplevel.no_timing oo IsarCmd.remove_thy));
   959 
   960 val _ =
   961   OuterSyntax.improper_command "kill_thy" "kill theory -- try to remove from loader database"
   962     K.diag (P.name >> (Toplevel.no_timing oo IsarCmd.kill_thy));
   963 
   964 val _ =
   965   OuterSyntax.improper_command "display_drafts" "display raw source files with symbols"
   966     K.diag (Scan.repeat1 P.path >> (Toplevel.no_timing oo IsarCmd.display_drafts));
   967 
   968 val _ =
   969   OuterSyntax.improper_command "print_drafts" "print raw source files with symbols"
   970     K.diag (Scan.repeat1 P.path >> (Toplevel.no_timing oo IsarCmd.print_drafts));
   971 
   972 val opt_limits =
   973   Scan.option P.nat -- Scan.option (P.$$$ "," |-- P.!!! P.nat);
   974 
   975 val _ =
   976   OuterSyntax.improper_command "pr" "print current proof state (if present)" K.diag
   977     (opt_modes -- opt_limits >> (Toplevel.no_timing oo IsarCmd.pr));
   978 
   979 val _ =
   980   OuterSyntax.improper_command "disable_pr" "disable printing of toplevel state" K.diag
   981     (Scan.succeed (Toplevel.no_timing o IsarCmd.disable_pr));
   982 
   983 val _ =
   984   OuterSyntax.improper_command "enable_pr" "enable printing of toplevel state" K.diag
   985     (Scan.succeed (Toplevel.no_timing o IsarCmd.enable_pr));
   986 
   987 val _ =
   988   OuterSyntax.improper_command "commit" "commit current session to ML database" K.diag
   989     (P.opt_unit >> K (Toplevel.no_timing o Toplevel.imperative Secure.commit));
   990 
   991 val _ =
   992   OuterSyntax.improper_command "quit" "quit Isabelle" K.control
   993     (P.opt_unit >> (Toplevel.no_timing oo K IsarCmd.quit));
   994 
   995 val _ =
   996   OuterSyntax.improper_command "exit" "exit Isar loop" K.control
   997     (Scan.succeed (Toplevel.no_timing o IsarCmd.exit));
   998 
   999 val _ =
  1000   OuterSyntax.improper_command "init_toplevel" "restart Isar toplevel loop" K.control
  1001     (Scan.succeed (Toplevel.no_timing o IsarCmd.init_toplevel));
  1002 
  1003 val _ =
  1004   OuterSyntax.improper_command "welcome" "print welcome message" K.diag
  1005     (Scan.succeed (Toplevel.no_timing o IsarCmd.welcome));
  1006 
  1007 end;