src/Pure/Thy/thy_output.ML
author wenzelm
Mon Mar 09 21:26:13 2009 +0100 (2009-03-09)
changeset 30398 d7ac4b7aa590
parent 30394 c11a1e65a2ed
child 30513 1796b8ea88aa
permissions -rw-r--r--
simplified presentation_context_of;
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(*  Title:      Pure/Thy/thy_output.ML
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    Author:     Markus Wenzel, TU Muenchen
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Theory document output with antiquotations.
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*)
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signature THY_OUTPUT =
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sig
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  val display: bool ref
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  val quotes: bool ref
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  val indent: int ref
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  val source: bool ref
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  val break: bool ref
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  val add_commands: (string * (Args.src -> Toplevel.state -> string)) list -> unit
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  val add_options: (string * (string -> (unit -> string) -> unit -> string)) list -> unit
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  val defined_command: string -> bool
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  val defined_option: string -> bool
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  val print_antiquotations: unit -> unit
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  val boolean: string -> bool
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  val integer: string -> int
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  val antiquotation: string ->
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    (Context.generic * Args.T list -> 'a * (Context.generic * Args.T list)) ->
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    ({state: Toplevel.state, source: Args.src, context: Proof.context} -> 'a -> string) -> unit
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  datatype markup = Markup | MarkupEnv | Verbatim
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  val modes: string list ref
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  val eval_antiquote: Scan.lexicon -> Toplevel.state -> SymbolPos.text * Position.T -> string
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  val present_thy: Scan.lexicon -> (string -> string list) -> (markup -> string -> bool) ->
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    (Toplevel.transition * Toplevel.state) list -> (OuterLex.token, 'a) Source.source -> Buffer.T
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  val pretty_text: string -> Pretty.T
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  val pretty_term: Proof.context -> term -> Pretty.T
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  val pretty_thm: Proof.context -> thm -> Pretty.T
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  val str_of_source: Args.src -> string
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  val maybe_pretty_source: ('a -> Pretty.T) -> Args.src -> 'a list -> Pretty.T list
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  val output: Pretty.T list -> string
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end;
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structure ThyOutput: THY_OUTPUT =
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struct
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structure T = OuterLex;
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structure P = OuterParse;
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(** global options **)
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val display = ref false;
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val quotes = ref false;
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val indent = ref 0;
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val source = ref false;
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val break = ref false;
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(** maintain global antiquotations **)
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local
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val global_commands =
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  ref (Symtab.empty: (Args.src -> Toplevel.state -> string) Symtab.table);
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val global_options =
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  ref (Symtab.empty: (string -> (unit -> string) -> unit -> string) Symtab.table);
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fun add_item kind (name, x) tab =
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 (if not (Symtab.defined tab name) then ()
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  else warning ("Redefined document antiquotation " ^ kind ^ ": " ^ quote name);
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  Symtab.update (name, x) tab);
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in
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fun add_commands xs = CRITICAL (fn () => change global_commands (fold (add_item "command") xs));
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fun add_options xs = CRITICAL (fn () => change global_options (fold (add_item "option") xs));
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fun defined_command name = Symtab.defined (! global_commands) name;
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fun defined_option name = Symtab.defined (! global_options) name;
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fun command src =
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  let val ((name, _), pos) = Args.dest_src src in
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    (case Symtab.lookup (! global_commands) name of
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      NONE => error ("Unknown document antiquotation: " ^ quote name ^ Position.str_of pos)
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    | SOME f =>
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       (Position.report (Markup.doc_antiq name) pos;
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        (fn state => f src state handle ERROR msg =>
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          cat_error msg ("The error(s) above occurred in document antiquotation: " ^
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            quote name ^ Position.str_of pos))))
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  end;
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fun option (name, s) f () =
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  (case Symtab.lookup (! global_options) name of
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    NONE => error ("Unknown document antiquotation option: " ^ quote name)
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  | SOME opt => opt s f ());
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fun options [] f = f
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  | options (opt :: opts) f = option opt (options opts f);
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fun print_antiquotations () =
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 [Pretty.big_list "document antiquotation commands:"
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    (map Pretty.str (sort_strings (Symtab.keys (! global_commands)))),
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  Pretty.big_list "document antiquotation options:"
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    (map Pretty.str (sort_strings (Symtab.keys (! global_options))))]
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 |> Pretty.chunks |> Pretty.writeln;
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end;
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fun antiquotation name scan out = add_commands [(name, fn src => fn state =>
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  let val (x, ctxt) = Args.context_syntax "document antiquotation"
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    scan src (Toplevel.presentation_context_of state)
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  in out {source = src, state = state, context = ctxt} x end)];
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(** syntax of antiquotations **)
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(* option values *)
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fun boolean "" = true
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  | boolean "true" = true
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  | boolean "false" = false
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  | boolean s = error ("Bad boolean value: " ^ quote s);
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fun integer s =
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  let
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    fun int ss =
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      (case Library.read_int ss of (i, []) => i
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      | _ => error ("Bad integer value: " ^ quote s));
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  in (case Symbol.explode s of "-" :: ss => ~ (int ss) | ss => int ss) end;
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(* outer syntax *)
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local
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val property = P.xname -- Scan.optional (P.$$$ "=" |-- P.!!! P.xname) "";
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val properties = Scan.optional (P.$$$ "[" |-- P.!!! (P.enum "," property --| P.$$$ "]")) [];
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in
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val antiq = P.!!! (P.position P.xname -- properties -- Args.parse --| Scan.ahead P.eof)
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  >> (fn (((x, pos), y), z) => (y, Args.src ((x, z), pos)));
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end;
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(* eval_antiquote *)
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val modes = ref ([]: string list);
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fun eval_antiquote lex state (txt, pos) =
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  let
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    fun expand (Antiquote.Text s) = s
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      | expand (Antiquote.Antiq x) =
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          let val (opts, src) = Antiquote.read_antiq lex antiq x in
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            options opts (fn () => command src state) ();  (*preview errors!*)
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            PrintMode.with_modes (! modes @ Latex.modes)
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              (Output.no_warnings (options opts (fn () => command src state))) ()
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          end
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      | expand (Antiquote.Open _) = ""
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      | expand (Antiquote.Close _) = "";
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    val ants = Antiquote.read (SymbolPos.explode (txt, pos), pos);
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  in
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    if Toplevel.is_toplevel state andalso exists Antiquote.is_antiq ants then
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      error ("Unknown context -- cannot expand document antiquotations" ^ Position.str_of pos)
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    else implode (map expand ants)
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  end;
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(** present theory source **)
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(*NB: arranging white space around command spans is a black art.*)
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(* presentation tokens *)
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datatype token =
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    NoToken
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  | BasicToken of T.token
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  | MarkupToken of string * (string * Position.T)
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  | MarkupEnvToken of string * (string * Position.T)
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  | VerbatimToken of string * Position.T;
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fun output_token lex state =
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  let val eval = eval_antiquote lex state in
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    fn NoToken => ""
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     | BasicToken tok => Latex.output_basic tok
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     | MarkupToken (cmd, txt) => Latex.output_markup cmd (eval txt)
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     | MarkupEnvToken (cmd, txt) => Latex.output_markup_env cmd (eval txt)
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     | VerbatimToken txt => Latex.output_verbatim (eval txt)
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  end;
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fun basic_token pred (BasicToken tok) = pred tok
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  | basic_token _ _ = false;
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val improper_token = basic_token (not o T.is_proper);
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val comment_token = basic_token T.is_comment;
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val blank_token = basic_token T.is_blank;
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val newline_token = basic_token T.is_newline;
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(* command spans *)
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type command = string * Position.T * string list;   (*name, position, tags*)
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type source = (token * (string * int)) list;        (*token, markup flag, meta-comment depth*)
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datatype span = Span of command * (source * source * source * source) * bool;
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fun make_span cmd src =
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  let
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    fun take_newline (tok :: toks) =
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          if newline_token (fst tok) then ([tok], toks, true)
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          else ([], tok :: toks, false)
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      | take_newline [] = ([], [], false);
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    val (((src_prefix, src_main), src_suffix1), (src_suffix2, src_appendix, newline)) =
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      src
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      |> take_prefix (improper_token o fst)
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      ||>> take_suffix (improper_token o fst)
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      ||>> take_prefix (comment_token o fst)
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      ||> take_newline;
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  in Span (cmd, (src_prefix, src_main, src_suffix1 @ src_suffix2, src_appendix), newline) end;
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(* present spans *)
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local
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fun err_bad_nesting pos =
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  error ("Bad nesting of commands in presentation" ^ pos);
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fun edge which f (x: string option, y) =
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  if x = y then I
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  else (case which (x, y) of NONE => I | SOME txt => Buffer.add (f txt));
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val begin_tag = edge #2 Latex.begin_tag;
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val end_tag = edge #1 Latex.end_tag;
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fun open_delim delim e = edge #2 Latex.begin_delim e #> delim #> edge #2 Latex.end_delim e;
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fun close_delim delim e = edge #1 Latex.begin_delim e #> delim #> edge #1 Latex.end_delim e;
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in
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fun present_span lex default_tags span state state'
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    (tag_stack, active_tag, newline, buffer, present_cont) =
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  let
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    val present = fold (fn (tok, (flag, 0)) =>
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        Buffer.add (output_token lex state' tok)
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        #> Buffer.add flag
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      | _ => I);
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    val Span ((cmd_name, cmd_pos, cmd_tags), srcs, span_newline) = span;
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    val (tag, tags) = tag_stack;
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    val tag' = try hd (fold OuterKeyword.update_tags cmd_tags (the_list tag));
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    val active_tag' =
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      if is_some tag' then tag'
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      else if cmd_name = "end" andalso not (Toplevel.is_toplevel state') then NONE
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      else try hd (default_tags cmd_name);
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    val edge = (active_tag, active_tag');
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    val newline' =
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      if is_none active_tag' then span_newline else newline;
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    val nesting = Toplevel.level state' - Toplevel.level state;
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    val tag_stack' =
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      if nesting = 0 andalso not (Toplevel.is_proof state) then tag_stack
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      else if nesting >= 0 then (tag', replicate nesting tag @ tags)
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      else
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        (case Library.drop (~ nesting - 1, tags) of
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          tgs :: tgss => (tgs, tgss)
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        | [] => err_bad_nesting (Position.str_of cmd_pos));
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    val buffer' =
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      buffer
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      |> end_tag edge
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      |> close_delim (fst present_cont) edge
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      |> snd present_cont
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      |> open_delim (present (#1 srcs)) edge
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      |> begin_tag edge
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      |> present (#2 srcs);
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    val present_cont' =
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      if newline then (present (#3 srcs), present (#4 srcs))
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      else (I, present (#3 srcs) #> present (#4 srcs));
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  in (tag_stack', active_tag', newline', buffer', present_cont') end;
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fun present_trailer ((_, tags), active_tag, _, buffer, present_cont) =
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  if not (null tags) then err_bad_nesting " at end of theory"
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  else
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    buffer
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    |> end_tag (active_tag, NONE)
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    |> close_delim (fst present_cont) (active_tag, NONE)
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    |> snd present_cont;
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end;
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(* present_thy *)
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datatype markup = Markup | MarkupEnv | Verbatim;
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local
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val space_proper =
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  Scan.one T.is_blank -- Scan.many T.is_comment -- Scan.one T.is_proper;
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val is_improper = not o (T.is_proper orf T.is_begin_ignore orf T.is_end_ignore);
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val improper = Scan.many is_improper;
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val improper_end = Scan.repeat (Scan.unless space_proper (Scan.one is_improper));
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val blank_end = Scan.repeat (Scan.unless space_proper (Scan.one T.is_blank));
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val opt_newline = Scan.option (Scan.one T.is_newline);
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val ignore =
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  Scan.depend (fn d => opt_newline |-- Scan.one T.is_begin_ignore
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    >> pair (d + 1)) ||
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  Scan.depend (fn d => Scan.one T.is_end_ignore --|
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    (if d = 0 then Scan.fail_with (K "Bad nesting of meta-comments") else opt_newline)
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    >> pair (d - 1));
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val tag = (improper -- P.$$$ "%" -- improper) |-- P.!!! (P.tag_name --| blank_end);
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val locale =
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  Scan.option ((P.$$$ "(" -- improper -- P.$$$ "in") |--
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    P.!!! (improper |-- P.xname --| (improper -- P.$$$ ")")));
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in
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fun present_thy lex default_tags is_markup command_results src =
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  let
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    (* tokens *)
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    val ignored = Scan.state --| ignore
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      >> (fn d => (NONE, (NoToken, ("", d))));
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    fun markup mark mk flag = Scan.peek (fn d =>
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      improper |-- P.position (Scan.one (T.is_kind T.Command andf is_markup mark o T.content_of)) --
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      Scan.repeat tag --
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      P.!!!! ((improper -- locale -- improper) |-- P.doc_source --| improper_end)
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      >> (fn (((tok, pos), tags), txt) =>
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        let val name = T.content_of tok
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        in (SOME (name, pos, tags), (mk (name, txt), (flag, d))) end));
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    val command = Scan.peek (fn d =>
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      P.position (Scan.one (T.is_kind T.Command)) --
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      Scan.repeat tag
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      >> (fn ((tok, pos), tags) =>
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        let val name = T.content_of tok
wenzelm@22124
   346
        in (SOME (name, pos, tags), (BasicToken tok, (Latex.markup_false, d))) end));
wenzelm@22124
   347
wenzelm@22124
   348
    val cmt = Scan.peek (fn d =>
wenzelm@27874
   349
      P.$$$ "--" |-- P.!!!! (improper |-- P.doc_source)
wenzelm@22124
   350
      >> (fn txt => (NONE, (MarkupToken ("cmt", txt), ("", d)))));
wenzelm@22124
   351
wenzelm@22124
   352
    val other = Scan.peek (fn d =>
wenzelm@23725
   353
       P.not_eof >> (fn tok => (NONE, (BasicToken tok, ("", d)))));
wenzelm@22124
   354
wenzelm@22124
   355
    val token =
wenzelm@22124
   356
      ignored ||
wenzelm@22124
   357
      markup Markup MarkupToken Latex.markup_true ||
wenzelm@22124
   358
      markup MarkupEnv MarkupEnvToken Latex.markup_true ||
wenzelm@22124
   359
      markup Verbatim (VerbatimToken o #2) "" ||
wenzelm@22124
   360
      command || cmt || other;
wenzelm@22124
   361
wenzelm@22124
   362
wenzelm@22124
   363
    (* spans *)
wenzelm@22124
   364
wenzelm@27732
   365
    val is_eof = fn (_, (BasicToken x, _)) => T.is_eof x | _ => false;
wenzelm@27732
   366
    val stopper = Scan.stopper (K (NONE, (BasicToken T.eof, ("", 0)))) is_eof;
wenzelm@22124
   367
wenzelm@22124
   368
    val cmd = Scan.one (is_some o fst);
wenzelm@27732
   369
    val non_cmd = Scan.one (is_none o fst andf not o is_eof) >> #2;
wenzelm@22124
   370
wenzelm@22124
   371
    val comments = Scan.many (comment_token o fst o snd);
wenzelm@22124
   372
    val blank = Scan.one (blank_token o fst o snd);
wenzelm@22124
   373
    val newline = Scan.one (newline_token o fst o snd);
wenzelm@22124
   374
    val before_cmd =
wenzelm@22124
   375
      Scan.option (newline -- comments) --
wenzelm@22124
   376
      Scan.option (newline -- comments) --
wenzelm@22124
   377
      Scan.option (blank -- comments) -- cmd;
wenzelm@22124
   378
wenzelm@22124
   379
    val span =
wenzelm@22124
   380
      Scan.repeat non_cmd -- cmd --
wenzelm@22124
   381
        Scan.repeat (Scan.unless before_cmd non_cmd) --
wenzelm@22124
   382
        Scan.option (newline >> (single o snd))
wenzelm@22124
   383
      >> (fn (((toks1, (cmd, tok2)), toks3), tok4) =>
wenzelm@22124
   384
          make_span (the cmd) (toks1 @ (tok2 :: (toks3 @ the_default [] tok4))));
wenzelm@22124
   385
wenzelm@22124
   386
    val spans =
wenzelm@22124
   387
      src
wenzelm@22124
   388
      |> Source.filter (not o T.is_semicolon)
wenzelm@22124
   389
      |> Source.source' 0 T.stopper (Scan.error (Scan.bulk token)) NONE
wenzelm@22124
   390
      |> Source.source stopper (Scan.error (Scan.bulk span)) NONE
wenzelm@22124
   391
      |> Source.exhaust;
wenzelm@28427
   392
wenzelm@28427
   393
wenzelm@28427
   394
    (* present commands *)
wenzelm@28427
   395
wenzelm@28427
   396
    fun present_command tr span st st' =
wenzelm@28427
   397
      Toplevel.setmp_thread_position tr (present_span lex default_tags span st st');
wenzelm@28427
   398
wenzelm@28427
   399
    fun present _ [] = I
wenzelm@28427
   400
      | present st (((tr, st'), span) :: rest) = present_command tr span st st' #> present st' rest;
wenzelm@22124
   401
  in
wenzelm@28427
   402
    if length command_results = length spans then
wenzelm@22124
   403
      ((NONE, []), NONE, true, Buffer.empty, (I, I))
wenzelm@28427
   404
      |> present Toplevel.toplevel (command_results ~~ spans)
wenzelm@22124
   405
      |> present_trailer
wenzelm@22124
   406
    else error "Messed-up outer syntax for presentation"
wenzelm@22124
   407
  end;
wenzelm@22124
   408
wenzelm@22124
   409
end;
wenzelm@22124
   410
wenzelm@22124
   411
wenzelm@22124
   412
wenzelm@22124
   413
(** setup default output **)
wenzelm@22124
   414
wenzelm@22124
   415
(* options *)
wenzelm@22124
   416
wenzelm@22124
   417
val _ = add_options
wenzelm@22124
   418
 [("show_types", Library.setmp Syntax.show_types o boolean),
wenzelm@22124
   419
  ("show_sorts", Library.setmp Syntax.show_sorts o boolean),
wenzelm@22124
   420
  ("show_structs", Library.setmp show_structs o boolean),
wenzelm@22124
   421
  ("show_question_marks", Library.setmp show_question_marks o boolean),
wenzelm@22124
   422
  ("long_names", Library.setmp NameSpace.long_names o boolean),
wenzelm@22124
   423
  ("short_names", Library.setmp NameSpace.short_names o boolean),
wenzelm@22124
   424
  ("unique_names", Library.setmp NameSpace.unique_names o boolean),
wenzelm@22124
   425
  ("eta_contract", Library.setmp Syntax.eta_contract o boolean),
wenzelm@22124
   426
  ("display", Library.setmp display o boolean),
wenzelm@22124
   427
  ("break", Library.setmp break o boolean),
wenzelm@22124
   428
  ("quotes", Library.setmp quotes o boolean),
wenzelm@23935
   429
  ("mode", fn s => fn f => PrintMode.with_modes [s] f),
wenzelm@22124
   430
  ("margin", Pretty.setmp_margin o integer),
wenzelm@22124
   431
  ("indent", Library.setmp indent o integer),
wenzelm@22124
   432
  ("source", Library.setmp source o boolean),
wenzelm@22124
   433
  ("goals_limit", Library.setmp goals_limit o integer)];
wenzelm@22124
   434
wenzelm@22124
   435
wenzelm@22124
   436
(* basic pretty printing *)
wenzelm@22124
   437
wenzelm@22124
   438
fun tweak_line s =
wenzelm@22124
   439
  if ! display then s else Symbol.strip_blanks s;
wenzelm@22124
   440
wenzelm@22124
   441
val pretty_text = Pretty.chunks o map Pretty.str o map tweak_line o Library.split_lines;
wenzelm@22124
   442
wenzelm@26710
   443
fun pretty_term ctxt t = Syntax.pretty_term (Variable.auto_fixes t ctxt) t;
wenzelm@24920
   444
wenzelm@26710
   445
fun pretty_term_abbrev ctxt t = ProofContext.pretty_term_abbrev (Variable.auto_fixes t ctxt) t;
wenzelm@22124
   446
wenzelm@22124
   447
fun pretty_term_typ ctxt t =
wenzelm@24920
   448
  Syntax.pretty_term ctxt (TypeInfer.constrain (Term.fastype_of t) t);
wenzelm@22124
   449
wenzelm@24920
   450
fun pretty_term_typeof ctxt = Syntax.pretty_typ ctxt o Term.fastype_of;
wenzelm@22124
   451
wenzelm@25373
   452
fun pretty_const ctxt c =
wenzelm@25373
   453
  let
wenzelm@25373
   454
    val t = Const (c, Consts.type_scheme (ProofContext.consts_of ctxt) c)
wenzelm@25373
   455
      handle TYPE (msg, _, _) => error msg;
wenzelm@25373
   456
    val ([t'], _) = Variable.import_terms true [t] ctxt;
wenzelm@25373
   457
  in pretty_term ctxt t' end;
wenzelm@22124
   458
wenzelm@25407
   459
fun pretty_abbrev ctxt s =
wenzelm@22124
   460
  let
wenzelm@25407
   461
    val t = Syntax.parse_term ctxt s |> singleton (ProofContext.standard_infer_types ctxt);
wenzelm@24920
   462
    fun err () = error ("Abbreviated constant expected: " ^ Syntax.string_of_term ctxt t);
wenzelm@22124
   463
    val (head, args) = Term.strip_comb t;
wenzelm@22124
   464
    val (c, T) = Term.dest_Const head handle TERM _ => err ();
wenzelm@25054
   465
    val (U, u) = Consts.the_abbreviation (ProofContext.consts_of ctxt) c
wenzelm@22124
   466
      handle TYPE _ => err ();
wenzelm@22124
   467
    val t' = Term.betapplys (Envir.expand_atom T (U, u), args);
wenzelm@22124
   468
  in pretty_term_abbrev ctxt (Logic.mk_equals (t, t')) end;
wenzelm@22124
   469
wenzelm@22124
   470
fun pretty_thm ctxt = pretty_term ctxt o Thm.full_prop_of;
wenzelm@22124
   471
wenzelm@22124
   472
fun pretty_term_style ctxt (name, t) =
wenzelm@22124
   473
  pretty_term ctxt (TermStyle.the_style (ProofContext.theory_of ctxt) name ctxt t);
wenzelm@22124
   474
wenzelm@22124
   475
fun pretty_thm_style ctxt (name, th) =
wenzelm@22124
   476
  pretty_term_style ctxt (name, Thm.full_prop_of th);
wenzelm@22124
   477
wenzelm@30390
   478
fun pretty_prf full ctxt = ProofSyntax.pretty_proof_of ctxt full;
wenzelm@22124
   479
wenzelm@22124
   480
fun pretty_theory ctxt name =
wenzelm@22124
   481
  (Theory.requires (ProofContext.theory_of ctxt) name "presentation"; Pretty.str name);
wenzelm@22124
   482
wenzelm@22124
   483
wenzelm@30390
   484
(* default output *)
wenzelm@30390
   485
wenzelm@30390
   486
val str_of_source = space_implode " " o map T.unparse o #2 o #1 o Args.dest_src;
wenzelm@22124
   487
wenzelm@30390
   488
fun maybe_pretty_source pretty src xs =
wenzelm@30390
   489
  map pretty xs  (*always pretty in order to exhibit errors!*)
wenzelm@30390
   490
  |> (if ! source then K [pretty_text (str_of_source src)] else I);
wenzelm@30390
   491
wenzelm@30390
   492
fun output prts =
wenzelm@30390
   493
  prts
wenzelm@22124
   494
  |> (if ! quotes then map Pretty.quote else I)
wenzelm@22124
   495
  |> (if ! display then
wenzelm@22124
   496
    map (Output.output o Pretty.string_of o Pretty.indent (! indent))
wenzelm@22124
   497
    #> space_implode "\\isasep\\isanewline%\n"
wenzelm@22124
   498
    #> enclose "\\begin{isabelle}%\n" "%\n\\end{isabelle}"
wenzelm@22124
   499
  else
wenzelm@22124
   500
    map (Output.output o (if ! break then Pretty.string_of else Pretty.str_of))
wenzelm@22124
   501
    #> space_implode "\\isasep\\isanewline%\n"
wenzelm@22124
   502
    #> enclose "\\isa{" "}");
wenzelm@22124
   503
wenzelm@30390
   504
wenzelm@30390
   505
wenzelm@30390
   506
(** concrete antiquotations **)
wenzelm@30390
   507
wenzelm@30390
   508
(* basic entities *)
wenzelm@30390
   509
wenzelm@30390
   510
local
wenzelm@30390
   511
wenzelm@30390
   512
fun basic_entities name scan pretty = antiquotation name scan
wenzelm@30390
   513
  (fn {source, context, ...} => output o maybe_pretty_source (pretty context) source);
wenzelm@30390
   514
wenzelm@30390
   515
fun basic_entity name scan = basic_entities name (scan >> single);
wenzelm@30390
   516
wenzelm@30390
   517
in
wenzelm@30390
   518
wenzelm@30390
   519
val _ = basic_entities "thm" Attrib.thms pretty_thm;
wenzelm@30390
   520
val _ = basic_entity "thm_style" (Scan.lift Args.liberal_name -- Attrib.thm) pretty_thm_style;
wenzelm@30390
   521
val _ = basic_entity "prop" Args.prop pretty_term;
wenzelm@30390
   522
val _ = basic_entity "term" Args.term pretty_term;
wenzelm@30390
   523
val _ = basic_entity "term_style" (Scan.lift Args.liberal_name -- Args.term) pretty_term_style;
wenzelm@30390
   524
val _ = basic_entity "term_type" Args.term pretty_term_typ;
wenzelm@30390
   525
val _ = basic_entity "typeof" Args.term pretty_term_typeof;
wenzelm@30390
   526
val _ = basic_entity "const" Args.const_proper pretty_const;
wenzelm@30390
   527
val _ = basic_entity "abbrev" (Scan.lift Args.name_source) pretty_abbrev;
wenzelm@30390
   528
val _ = basic_entity "typ" Args.typ_abbrev Syntax.pretty_typ;
wenzelm@30390
   529
val _ = basic_entity "text" (Scan.lift Args.name) (K pretty_text);
wenzelm@30390
   530
val _ = basic_entities "prf" Attrib.thms (pretty_prf false);
wenzelm@30390
   531
val _ = basic_entities "full_prf" Attrib.thms (pretty_prf true);
wenzelm@30390
   532
val _ = basic_entity "theory" (Scan.lift Args.name) pretty_theory;
wenzelm@30390
   533
wenzelm@30390
   534
end;
wenzelm@30390
   535
wenzelm@30390
   536
wenzelm@30390
   537
(* goal state *)
wenzelm@30390
   538
wenzelm@30390
   539
local
wenzelm@22124
   540
wenzelm@30367
   541
fun proof_state state =
wenzelm@30367
   542
  (case try Toplevel.proof_of state of
wenzelm@30367
   543
    SOME prf => prf
wenzelm@22124
   544
  | _ => error "No proof state");
wenzelm@22124
   545
wenzelm@30390
   546
fun goal_state name main_goal = antiquotation name (Scan.succeed ())
wenzelm@30390
   547
  (fn {state, ...} => fn () => output
wenzelm@30390
   548
    [Pretty.chunks (Proof.pretty_goals main_goal (proof_state state))]);
wenzelm@22124
   549
wenzelm@30390
   550
in
wenzelm@30390
   551
wenzelm@30390
   552
val _ = goal_state "goals" true;
wenzelm@30390
   553
val _ = goal_state "subgoals" false;
wenzelm@30390
   554
wenzelm@30390
   555
end;
wenzelm@22124
   556
wenzelm@22124
   557
wenzelm@30390
   558
(* embedded lemma *)
wenzelm@27522
   559
wenzelm@27381
   560
val _ = OuterKeyword.keyword "by";
wenzelm@27381
   561
wenzelm@30390
   562
val _ = antiquotation "lemma"
wenzelm@30390
   563
  (Args.prop -- Scan.lift (Args.$$$ "by" |-- Method.parse -- Scan.option Method.parse))
wenzelm@30390
   564
  (fn {source, context, ...} => fn (prop, methods) =>
wenzelm@30390
   565
    let
wenzelm@30390
   566
      val prop_src =
wenzelm@30390
   567
        (case Args.dest_src source of ((a, arg :: _), pos) => Args.src ((a, [arg]), pos));
wenzelm@30390
   568
      val _ = context
wenzelm@30390
   569
        |> Proof.theorem_i NONE (K I) [[(prop, [])]]
wenzelm@30390
   570
        |> Proof.global_terminal_proof methods;
wenzelm@30390
   571
    in output (maybe_pretty_source (pretty_term context) prop_src [prop]) end);
wenzelm@30390
   572
wenzelm@30390
   573
wenzelm@30390
   574
(* ML text *)
wenzelm@30390
   575
wenzelm@30390
   576
local
wenzelm@30390
   577
wenzelm@30390
   578
fun ml_text name ml = antiquotation name (Scan.lift Args.name_source_position)
wenzelm@30390
   579
  (fn {context, ...} => fn (txt, pos) =>
wenzelm@30390
   580
   (ML_Context.eval_in (SOME context) false pos (ml txt);
wenzelm@30390
   581
    SymbolPos.content (SymbolPos.explode (txt, pos))
wenzelm@30390
   582
    |> (if ! quotes then quote else I)
wenzelm@30390
   583
    |> (if ! display then enclose "\\begin{verbatim}\n" "\n\\end{verbatim}"
wenzelm@30390
   584
    else
wenzelm@30390
   585
      split_lines
wenzelm@30390
   586
      #> map (space_implode "\\verb,|," o map (enclose "\\verb|" "|") o space_explode "|")
wenzelm@30390
   587
      #> space_implode "\\isasep\\isanewline%\n")));
wenzelm@30390
   588
wenzelm@30390
   589
in
wenzelm@30390
   590
wenzelm@30390
   591
val _ = ml_text "ML" (fn txt => "fn _ => (" ^ txt ^ ");");
wenzelm@30390
   592
val _ = ml_text "ML_type" (fn txt => "val _ = NONE : (" ^ txt ^ ") option;");
wenzelm@30394
   593
val _ = ml_text "ML_struct" (fn txt => "functor XXX() = struct structure XX = " ^ txt ^ " end;");
wenzelm@30394
   594
val _ = ml_text "ML_functor" (K "");  (*no check!*)
wenzelm@30394
   595
val _ = ml_text "ML_text" (K "");
wenzelm@22124
   596
wenzelm@22124
   597
end;
wenzelm@30390
   598
wenzelm@30390
   599
end;