src/Pure/Isar/isar_cmd.ML
author wenzelm
Wed May 26 22:43:50 1999 +0200 (1999-05-26 ago)
changeset 6734 151c07f5b70a
parent 6694 335833a8b10a
child 6742 6b5cb872d997
permissions -rw-r--r--
cannot_undo;
     1 (*  Title:      Pure/Isar/isar_cmd.ML
     2     ID:         $Id$
     3     Author:     Markus Wenzel, TU Muenchen
     4 
     5 Non-logical toplevel commands.
     6 *)
     7 
     8 signature ISAR_CMD =
     9 sig
    10   val break: Toplevel.transition -> Toplevel.transition
    11   val exit: Toplevel.transition -> Toplevel.transition
    12   val restart: Toplevel.transition -> Toplevel.transition
    13   val quit: Toplevel.transition -> Toplevel.transition
    14   val cannot_undo: string -> Toplevel.transition -> Toplevel.transition
    15   val clear_undo: Toplevel.transition -> Toplevel.transition
    16   val undo: Toplevel.transition -> Toplevel.transition
    17   val redo: Toplevel.transition -> Toplevel.transition
    18   val undos: int -> Toplevel.transition -> Toplevel.transition
    19   val use: string -> Toplevel.transition -> Toplevel.transition
    20   val use_mltext_theory: string -> Toplevel.transition -> Toplevel.transition
    21   val use_mltext: string -> Toplevel.transition -> Toplevel.transition
    22   val use_commit: Toplevel.transition -> Toplevel.transition
    23   val cd: string -> Toplevel.transition -> Toplevel.transition
    24   val pwd: Toplevel.transition -> Toplevel.transition
    25   val use_thy: string -> Toplevel.transition -> Toplevel.transition
    26   val use_thy_only: string -> Toplevel.transition -> Toplevel.transition
    27   val update_thy: string -> Toplevel.transition -> Toplevel.transition
    28   val print_theory: Toplevel.transition -> Toplevel.transition
    29   val print_syntax: Toplevel.transition -> Toplevel.transition
    30   val print_theorems: Toplevel.transition -> Toplevel.transition
    31   val print_attributes: Toplevel.transition -> Toplevel.transition
    32   val print_methods: Toplevel.transition -> Toplevel.transition
    33   val print_binds: Toplevel.transition -> Toplevel.transition
    34   val print_lthms: Toplevel.transition -> Toplevel.transition
    35   val print_thms: xstring * Args.src list -> Toplevel.transition -> Toplevel.transition
    36   val print_prop: string -> Toplevel.transition -> Toplevel.transition
    37   val print_term: string -> Toplevel.transition -> Toplevel.transition
    38   val print_type: string -> Toplevel.transition -> Toplevel.transition
    39 end;
    40 
    41 structure IsarCmd: ISAR_CMD =
    42 struct
    43 
    44 
    45 (* variations on exit *)
    46 
    47 val break = Toplevel.keep (fn state => raise Toplevel.BREAK state);
    48 
    49 val exit = Toplevel.keep (fn state =>
    50   (Context.set_context (try Toplevel.theory_of state);
    51     writeln "Leaving the Isar loop.  Invoke 'loop();' to restart.";
    52     raise Toplevel.TERMINATE));
    53 
    54 val restart = Toplevel.imperative (fn () => raise Toplevel.RESTART);
    55 val quit = Toplevel.imperative quit;
    56 
    57 
    58 (* history commands *)
    59 
    60 fun cannot_undo txt = Toplevel.imperative (fn () => error ("Cannot undo " ^ quote txt));
    61 
    62 val clear_undo = Toplevel.history History.clear o Toplevel.proof ProofHistory.clear;
    63 val redo = Toplevel.history History.redo o Toplevel.proof ProofHistory.redo;
    64 
    65 fun undo_proof prf =
    66   if ProofHistory.is_initial prf then raise Toplevel.UNDEF else ProofHistory.undo prf;
    67 
    68 fun undo_node hist =
    69   if History.is_initial hist then raise Toplevel.UNDEF else History.undo hist;
    70 
    71 val undo = Toplevel.kill o Toplevel.history undo_node o Toplevel.proof undo_proof;
    72 
    73 (* FIXME fix *)
    74 fun undos n = Toplevel.history (funpow n History.undo) o Toplevel.proof (funpow n undo_proof);
    75 
    76 
    77 (* use ML text *)
    78 
    79 fun use name = Toplevel.keep (fn state =>
    80   Context.setmp (try Toplevel.theory_of state) ThyInfo.use name);
    81 
    82 (*passes changes of theory context*)
    83 val use_mltext_theory = Toplevel.theory o IsarThy.use_mltext_theory;
    84 
    85 (*ignore result theory context*)
    86 fun use_mltext txt = Toplevel.keep (fn state =>
    87   (IsarThy.use_mltext txt (try Toplevel.theory_of state); ()));
    88 
    89 (*Note: commit is dynamically bound*)
    90 val use_commit = use_mltext "commit();";
    91 
    92 
    93 (* current working directory *)
    94 
    95 fun print_cd _ = writeln (Path.pack (File.pwd ()));
    96 
    97 fun cd dir = Toplevel.imperative (fn () => (File.cd (Path.unpack dir); print_cd ()));
    98 val pwd = Toplevel.imperative print_cd;
    99 
   100 
   101 (* load theory files *)
   102 
   103 fun use_thy name = Toplevel.imperative (fn () => Context.save ThyInfo.use_thy name);
   104 fun use_thy_only name = Toplevel.imperative (fn () => Context.save ThyInfo.use_thy_only name);
   105 fun update_thy name = Toplevel.imperative (fn () => Context.save ThyInfo.update_thy name);
   106 
   107 
   108 (* print theory contents *)
   109 
   110 val print_theory = Toplevel.keep (PureThy.print_theory o Toplevel.theory_of);
   111 val print_syntax = Toplevel.keep (Display.print_syntax o Toplevel.theory_of);
   112 val print_theorems = Toplevel.keep (PureThy.print_theorems o Toplevel.theory_of);
   113 val print_attributes = Toplevel.keep (Attrib.print_attributes o Toplevel.theory_of);
   114 val print_methods = Toplevel.keep (Method.print_methods o Toplevel.theory_of);
   115 
   116 
   117 (* print proof context contents *)
   118 
   119 val print_binds = Toplevel.keep (ProofContext.print_binds o Proof.context_of o Toplevel.proof_of);
   120 val print_lthms = Toplevel.keep (ProofContext.print_thms o Proof.context_of o Toplevel.proof_of);
   121 
   122 
   123 (* print theorems *)
   124 
   125 fun global_attribs thy ths srcs =
   126   #2 (Thm.applys_attributes ((Theory.copy thy, ths), map (Attrib.global_attribute thy) srcs));
   127 
   128 fun local_attribs st ths srcs =
   129   #2 (Thm.applys_attributes ((Proof.context_of st, ths),
   130     map (Attrib.local_attribute (Proof.theory_of st)) srcs));
   131 
   132 fun print_thms (name, srcs) = Toplevel.keep (fn state =>
   133   let
   134     val ths = map (Thm.transfer (Toplevel.theory_of state))
   135       (Toplevel.node_case PureThy.get_thms (ProofContext.get_thms o Proof.context_of)
   136         state name);
   137     val ths' = Toplevel.node_case global_attribs local_attribs state ths srcs;
   138   in Display.print_thms ths' end);
   139 
   140 
   141 (* print types, terms and props *)
   142 
   143 fun read_typ thy = Sign.read_typ (Theory.sign_of thy, K None);
   144 
   145 fun read_term T thy s =
   146   Thm.term_of (#1 (Thm.read_def_cterm (Theory.sign_of thy, K None, K None) [] true (s, T)));
   147 
   148 
   149 fun print_type s = Toplevel.keep (fn state =>
   150   let
   151     val sign = Toplevel.sign_of state;
   152     val T = Toplevel.node_case read_typ (ProofContext.read_typ o Proof.context_of) state s;
   153   in Pretty.writeln (Pretty.quote (Sign.pretty_typ sign T)) end);
   154 
   155 fun print_term s = Toplevel.keep (fn state =>
   156   let
   157     val sign = Toplevel.sign_of state;
   158     val t = Toplevel.node_case (read_term (TVar (("'z", 0), logicS)))
   159       (ProofContext.read_term o Proof.context_of) state s;
   160     val T = Term.type_of t;
   161   in
   162     Pretty.writeln (Pretty.block [Pretty.quote (Sign.pretty_term sign t), Pretty.fbrk,
   163       Pretty.str "::", Pretty.brk 1, Pretty.quote (Sign.pretty_typ sign T)])
   164   end);
   165 
   166 fun print_prop s = Toplevel.keep (fn state =>
   167   let
   168     val sign = Toplevel.sign_of state;
   169     val prop =
   170       Toplevel.node_case (read_term propT) (ProofContext.read_prop o Proof.context_of) state s;
   171   in Pretty.writeln (Pretty.quote (Sign.pretty_term sign prop)) end);
   172 
   173 
   174 end;