src/Pure/Isar/isar_cmd.ML
author wenzelm
Fri Mar 19 11:24:00 1999 +0100 (1999-03-19)
changeset 6404 2daaf2943c79
parent 6264 87e5f5b40595
child 6635 f81b9b4c3265
permissions -rw-r--r--
common qed and end of proofs;
     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 use: string -> Toplevel.transition -> Toplevel.transition
    15   val use_mltext_theory: string -> Toplevel.transition -> Toplevel.transition
    16   val use_mltext: string -> Toplevel.transition -> Toplevel.transition
    17   val use_commit: Toplevel.transition -> Toplevel.transition
    18   val cd: string -> Toplevel.transition -> Toplevel.transition
    19   val pwd: Toplevel.transition -> Toplevel.transition
    20   val use_thy: string -> Toplevel.transition -> Toplevel.transition
    21   val update_thy: string -> Toplevel.transition -> Toplevel.transition
    22   val print_theory: Toplevel.transition -> Toplevel.transition
    23   val print_syntax: Toplevel.transition -> Toplevel.transition
    24   val print_theorems: Toplevel.transition -> Toplevel.transition
    25   val print_attributes: Toplevel.transition -> Toplevel.transition
    26   val print_methods: Toplevel.transition -> Toplevel.transition
    27   val print_binds: Toplevel.transition -> Toplevel.transition
    28   val print_lthms: Toplevel.transition -> Toplevel.transition
    29   val print_thms: xstring * Args.src list -> Toplevel.transition -> Toplevel.transition
    30   val print_prop: string -> Toplevel.transition -> Toplevel.transition
    31   val print_term: string -> Toplevel.transition -> Toplevel.transition
    32   val print_type: string -> Toplevel.transition -> Toplevel.transition
    33 end;
    34 
    35 structure IsarCmd: ISAR_CMD =
    36 struct
    37 
    38 
    39 (* variations on exit *)
    40 
    41 val break = Toplevel.keep (fn state => raise Toplevel.BREAK state);
    42 
    43 val exit = Toplevel.keep (fn state =>
    44   (Context.set_context (try Toplevel.theory_of state);
    45     writeln "Leaving the Isar loop.  Invoke 'main_loop();' to restart.";
    46     raise Toplevel.TERMINATE));
    47 
    48 val restart = Toplevel.imperative (fn () => raise Toplevel.RESTART);
    49 val quit = Toplevel.imperative quit;
    50 
    51 
    52 (* use ML text *)
    53 
    54 fun use name = Toplevel.keep (fn state =>
    55   Context.setmp (try Toplevel.theory_of state) ThyInfo.use name);
    56 
    57 (*passes changes of theory context*)
    58 val use_mltext_theory = Toplevel.theory o IsarThy.use_mltext_theory;
    59 
    60 (*ignore result theory context*)
    61 fun use_mltext txt = Toplevel.keep (fn state =>
    62   (IsarThy.use_mltext txt (try Toplevel.theory_of state); ()));
    63 
    64 (*Note: commit is dynamically bound*)
    65 val use_commit = use_mltext "commit();";
    66 
    67 
    68 (* current working directory *)
    69 
    70 fun print_cd _ = writeln (Path.pack (File.pwd ()));
    71 
    72 fun cd dir = Toplevel.imperative (fn () => (File.cd (Path.unpack dir); print_cd ()));
    73 val pwd = Toplevel.imperative print_cd;
    74 
    75 
    76 (* load theory files *)
    77 
    78 fun use_thy name = Toplevel.imperative (fn () => Context.save ThyInfo.use_thy name);
    79 fun update_thy name = Toplevel.imperative (fn () => Context.save ThyInfo.update_thy name);
    80 
    81 
    82 (* print theory contents *)
    83 
    84 val print_theory = Toplevel.keep (PureThy.print_theory o Toplevel.theory_of);
    85 val print_syntax = Toplevel.keep (Display.print_syntax o Toplevel.theory_of);
    86 val print_theorems = Toplevel.keep (PureThy.print_theorems o Toplevel.theory_of);
    87 val print_attributes = Toplevel.keep (Attrib.print_attributes o Toplevel.theory_of);
    88 val print_methods = Toplevel.keep (Method.print_methods o Toplevel.theory_of);
    89 
    90 
    91 (* print proof context contents *)
    92 
    93 val print_binds = Toplevel.keep (ProofContext.print_binds o Proof.context_of o Toplevel.proof_of);
    94 val print_lthms = Toplevel.keep (ProofContext.print_thms o Proof.context_of o Toplevel.proof_of);
    95 
    96 
    97 (* print theorems *)
    98 
    99 fun global_attribs thy ths srcs =
   100   #2 (Thm.applys_attributes ((Theory.copy thy, ths), map (Attrib.global_attribute thy) srcs));
   101 
   102 fun local_attribs st ths srcs =
   103   #2 (Thm.applys_attributes ((Proof.context_of st, ths),
   104     map (Attrib.local_attribute (Proof.theory_of st)) srcs));
   105 
   106 fun print_thms (name, srcs) = Toplevel.keep (fn state =>
   107   let
   108     val ths = map (Thm.transfer (Toplevel.theory_of state))
   109       (Toplevel.node_cases PureThy.get_thms (ProofContext.get_thms o Proof.context_of)
   110         state name);
   111     val ths' = Toplevel.node_cases global_attribs local_attribs state ths srcs;
   112   in Display.print_thms ths' end);
   113 
   114 
   115 (* print types, terms and props *)
   116 
   117 fun read_typ thy = Sign.read_typ (Theory.sign_of thy, K None);
   118 
   119 fun read_term T thy s =
   120   Thm.term_of (#1 (Thm.read_def_cterm (Theory.sign_of thy, K None, K None) [] true (s, T)));
   121 
   122 
   123 fun print_type s = Toplevel.keep (fn state =>
   124   let
   125     val sign = Toplevel.sign_of state;
   126     val T = Toplevel.node_cases read_typ (ProofContext.read_typ o Proof.context_of) state s;
   127   in Pretty.writeln (Pretty.quote (Sign.pretty_typ sign T)) end);
   128 
   129 fun print_term s = Toplevel.keep (fn state =>
   130   let
   131     val sign = Toplevel.sign_of state;
   132     val t = Toplevel.node_cases (read_term (TVar (("'z", 0), logicS)))
   133       (ProofContext.read_term o Proof.context_of) state s;
   134     val T = Term.type_of t;
   135   in
   136     Pretty.writeln (Pretty.block [Pretty.quote (Sign.pretty_term sign t), Pretty.fbrk,
   137       Pretty.str "::", Pretty.brk 1, Pretty.quote (Sign.pretty_typ sign T)])
   138   end);
   139 
   140 fun print_prop s = Toplevel.keep (fn state =>
   141   let
   142     val sign = Toplevel.sign_of state;
   143     val prop =
   144       Toplevel.node_cases (read_term propT) (ProofContext.read_prop o Proof.context_of) state s;
   145   in Pretty.writeln (Pretty.quote (Sign.pretty_term sign prop)) end);
   146 
   147 
   148 end;