src/Pure/ProofGeneral/proof_general_pgip.ML
author aspinall
Mon Dec 04 20:40:11 2006 +0100 (2006-12-04 ago)
changeset 21637 a7b156c404e2
child 21642 54b00ca67e0e
permissions -rw-r--r--
Revamped Proof General interface.
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(*  Title:      Pure/ProofGeneral/proof_general_pgip.ML
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    ID:         $Id$
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    Author:     David Aspinall and Markus Wenzel
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Isabelle configuration for Proof General using PGIP protocol.
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See http://proofgeneral.inf.ed.ac.uk/kit  
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*)
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signature PROOF_GENERAL_PGIP =
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sig
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  val init_pgip: bool -> unit
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end
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structure ProofGeneralPgip : PROOF_GENERAL_PGIP  =
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struct
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structure P = OuterParse;
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open Pgip;
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(* print modes *)
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val proof_generalN = "ProofGeneral";  (*token markup (colouring vars, etc.)*)
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val xsymbolsN = Symbol.xsymbolsN;     (*X-Symbol symbols*)
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val pgmlN = "PGML";                   (*XML escapes and PGML symbol elements*)
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val pgmlatomsN = "PGMLatoms";         (*variable kind decorations*)
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val thm_depsN = "thm_deps";           (*meta-information about theorem deps*)
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(* text output: print modes for xsymbol and PGML *)
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local
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fun xsym_output "\\" = "\\\\"
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  | xsym_output s = if Symbol.is_raw s then Symbol.decode_raw s else s;
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fun xsymbols_output s =
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  if Output.has_mode xsymbolsN andalso exists_string (equal "\\") s then
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    let val syms = Symbol.explode s
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    in (implode (map xsym_output syms), real (Symbol.length syms)) end
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  else Symbol.default_output s;
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(* XML immediately rendered pretty printer. Take care not to double escape *)
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fun pgml_sym s =
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  (case Symbol.decode s of
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    Symbol.Char s => XML.text s
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  | Symbol.Sym sn => XML.element "sym" [("name", sn)] [XML.text s] 
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  | Symbol.Ctrl sn => XML.element "ctrl" [("name", sn)] [XML.text s] (* FIXME: no such PGML! *)
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  | Symbol.Raw s => s);
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fun pgml_output str =
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  let val syms = Symbol.explode str
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  in (implode (map pgml_sym syms), real (Symbol.length syms)) end;
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in
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fun setup_xsymbols_output () =
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  Output.add_mode xsymbolsN
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    (xsymbols_output, K xsymbols_output, Symbol.default_indent, Symbol.encode_raw);
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fun setup_pgml_output () =
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  Output.add_mode pgmlN
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    (pgml_output, K pgml_output, Symbol.default_indent, Symbol.encode_raw);
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end;
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(* token translations *)
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local
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val class_tag = "class"
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val tfree_tag = "tfree"
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val tvar_tag = "tvar"
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val free_tag = "free"
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val bound_tag = "bound"
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val var_tag = "var"
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val skolem_tag = "skolem"
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fun xml_atom kind x = XML.element "atom" [("kind", kind)] [XML.text x];
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fun tagit kind x = 
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 (xml_atom kind x, real (Symbol.length (Symbol.explode x)));
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fun free_or_skolem x =
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  (case try Name.dest_skolem x of
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    NONE => tagit free_tag x
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  | SOME x' => tagit skolem_tag x');
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fun var_or_skolem s =
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  (case Syntax.read_variable s of
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    SOME (x, i) =>
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      (case try Name.dest_skolem x of
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        NONE => tagit var_tag s
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      | SOME x' => tagit skolem_tag
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          (setmp show_question_marks true Syntax.string_of_vname (x', i)))
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  | NONE => tagit var_tag s);
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val proof_general_trans =
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 Syntax.tokentrans_mode proof_generalN
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  [("class", tagit class_tag),
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   ("tfree", tagit tfree_tag),
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   ("tvar", tagit tvar_tag),
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   ("free", free_or_skolem),
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   ("bound", tagit bound_tag),
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   ("var", var_or_skolem)];
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in
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val _ = Context.add_setup (Theory.add_tokentrfuns proof_general_trans);
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end;
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(** assembling and issuing PGIP packets **)
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val pgip_refid  = ref NONE: string option ref;
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val pgip_refseq = ref NONE: int option ref;
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local
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  val pgip_class  = "pg"
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  val pgip_tag = "Isabelle/Isar"
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  val pgip_id = ref ""
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  val pgip_seq = ref 0
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  fun pgip_serial () = inc pgip_seq
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  fun assemble_pgips pgips =
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    Pgip { tag = SOME pgip_tag, 
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	   class = pgip_class,
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	   seq = pgip_serial(),
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	   id = !pgip_id,
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	   destid = !pgip_refid,
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	   (* destid=refid since Isabelle only communicates back to sender *)
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	   refid  = !pgip_refid,
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	   refseq = !pgip_refseq,
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	   content = pgips }
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in
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fun init_pgip_session_id () =
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    pgip_id := getenv "HOSTNAME" ^ "/" ^ getenv "USER" ^ "/" ^
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               getenv "ISABELLE_PID" ^ "/" ^ Time.toString (Time.now ())
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fun matching_pgip_id id = (id = !pgip_id)
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val output_xml = writeln_default o XML.string_of_tree;  (* FIXME: use string buffer *)
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fun issue_pgip_rawtext str = 
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    output_xml (PgipOutput.output (assemble_pgips [XML.Text str])) (* FIXME: don't escape!! *)
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fun issue_pgips pgipops =
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    output_xml (PgipOutput.output (assemble_pgips (map PgipOutput.output pgipops)));
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fun issue_pgip pgipop =
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    output_xml (PgipOutput.output (assemble_pgips [PgipOutput.output pgipop]));
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end;
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(** messages and notification **)
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local
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    val delay_msgs = ref false   (*true: accumulate messages*)
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    val delayed_msgs = ref []
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    fun queue_or_issue pgip =
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	if (! delay_msgs) then
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	    delayed_msgs := pgip :: ! delayed_msgs
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	else issue_pgip pgip
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in
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    fun normalmsg area cat urgent prfx s = 
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	let 
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	    val content = 
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		(* NB: prefixing is obsolete, but let's keep it for a while for familiarity *)
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		    XML.Elem("pgmltext",[],[XML.Rawtext (prefix_lines prfx s)])
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	    val pgip = Normalresponse {area=area,messagecategory=cat,
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				       urgent=urgent,content=[content] }
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	in
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	    queue_or_issue pgip
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	end
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    fun errormsg fatality prfx s =
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	let
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	    (* FIXME: need a way of passing in locations *)
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              val content =
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		  XML.Elem("pgmltext",[],[XML.Rawtext (prefix_lines prfx s)])
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	      val pgip = Errorresponse {area=NONE,fatality=fatality,
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					content=[content], location=NONE}
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	in 
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	    queue_or_issue pgip
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	end
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    fun start_delay_msgs () = (set delay_msgs; delayed_msgs := [])
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    fun end_delayed_msgs () = (reset delay_msgs; ! delayed_msgs)
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end;
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(* NB: all of the standard error/message functions now expect already-escaped text.
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   FIXME: this may cause us problems now we're generating trees; on the other
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   hand the output functions were tuned some time ago, so it ought to be 
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   enough to use Rawtext always above. *)
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fun setup_messages () =
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 (writeln_fn := (fn s => normalmsg Message Normal false "" s);
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  priority_fn := (fn s => normalmsg Message Normal true "" s);
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  tracing_fn := (fn s => normalmsg  Message Tracing false "" s);
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  info_fn := (fn s => normalmsg Message Information false "+++ " s);
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  debug_fn := (fn s => normalmsg Message Internal false "+++ " s);
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  warning_fn := (fn s => errormsg Nonfatal "### " s);
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  error_fn := (fn s => errormsg Fatal "*** " s);
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  panic_fn := (fn s => errormsg Panic "!!! " s))
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(* immediate messages *)
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fun tell_clear_goals ()      = issue_pgip (Cleardisplay {area=Display})
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fun tell_clear_response ()   = issue_pgip (Cleardisplay {area=Message})
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fun tell_file_loaded path    = issue_pgip (Informfileloaded {url=PgipTypes.pgipurl_of_path path})
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fun tell_file_retracted path = issue_pgip (Informfileretracted {url=PgipTypes.pgipurl_of_path path})
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(** theory / proof state output **)
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local
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fun statedisplay prts =
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    let
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	val display = Pretty.output (Pretty.chunks prts)
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	val statedisplay = XML.Elem("statedisplay",[], [XML.Rawtext display])
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    in
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	issue_pgip (Proofstate {pgml=[XML.Elem("pgml",[],[statedisplay])]})
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    end
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fun print_current_goals n m st =
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  statedisplay (Display.pretty_current_goals n m st)
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fun print_state b st =
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  statedisplay (Toplevel.pretty_state b st)
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in
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fun setup_state () =
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  (Display.print_current_goals_fn := print_current_goals;
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   Toplevel.print_state_fn := print_state);
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      (*    Toplevel.prompt_state_fn := (fn s => suffix (special "372")
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					(Toplevel.prompt_state_default s))); *)
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end;
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(* theory loader actions *)
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local
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fun trace_action action name =
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  if action = ThyInfo.Update then
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    List.app tell_file_loaded (ThyInfo.loaded_files name)
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  else if action = ThyInfo.Outdate orelse action = ThyInfo.Remove then
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    List.app tell_file_retracted (ThyInfo.loaded_files name)
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  else ();
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in
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  fun setup_thy_loader () = ThyInfo.add_hook trace_action;
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  fun sync_thy_loader () = List.app (trace_action ThyInfo.Update) (ThyInfo.names ());
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end;
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(* prepare theory context *)
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val thy_name = Path.pack o #1 o Path.split_ext o Path.base o Path.unpack;
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(* FIXME general treatment of tracing*)
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val update_thy_only = setmp MetaSimplifier.trace_simp false ThyInfo.update_thy_only;
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fun dynamic_context () =
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  (case Context.get_context () of
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    SOME thy => "  Using current (dynamic!) one: " ^ quote (Context.theory_name thy)
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  | NONE => "");
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fun try_update_thy_only file =
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  ThyLoad.cond_add_path (Path.dir (Path.unpack file)) (fn () =>
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    let val name = thy_name file in
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      if is_some (ThyLoad.check_file NONE (ThyLoad.thy_path name))
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      then update_thy_only name
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      else warning ("Unkown theory context of ML file." ^ dynamic_context ())
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    end) ();
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(* get informed about files *)
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val inform_file_retracted = ThyInfo.if_known_thy ThyInfo.remove_thy o thy_name;
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val inform_file_processed = ThyInfo.if_known_thy ThyInfo.touch_child_thys o thy_name;
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val openfile_retract = Output.no_warnings (ThyInfo.if_known_thy ThyInfo.remove_thy) o thy_name;
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fun proper_inform_file_processed file state =
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  let val name = thy_name file in
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    if Toplevel.is_toplevel state andalso ThyInfo.known_thy name then
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     (ThyInfo.touch_child_thys name;
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      ThyInfo.pretend_use_thy_only name handle ERROR msg =>
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       (warning msg; warning ("Failed to register theory: " ^ quote name);
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        tell_file_retracted (Path.base (Path.unpack file))))
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    else raise Toplevel.UNDEF
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  end;
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fun vacuous_inform_file_processed file state =
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 (warning ("No theory " ^ quote (thy_name file));
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  tell_file_retracted (Path.base (Path.unpack file)));
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(* restart top-level loop (keeps most state information) *)
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val welcome = priority o Session.welcome;
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fun restart () =
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    (sync_thy_loader ();
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     tell_clear_goals ();
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     tell_clear_response ();
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     welcome ();
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     raise Toplevel.RESTART)
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(* theorem dependency output *)
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local
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val spaces_quote = space_implode " " o map quote;
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fun thm_deps_message (thms, deps) =
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    let 
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	val valuethms = XML.Elem("value",[("name", "thms")],[XML.Text thms])
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	val valuedeps = XML.Elem("value",[("name", "deps")],[XML.Text deps])
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    in
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	issue_pgip (Metainforesponse {attrs=[("infotype", "isabelle_theorem_dependencies")],
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				      content=[valuethms,valuedeps]})
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    end
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(* FIXME: check this uses non-transitive closure function here *)
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fun tell_thm_deps ths = conditional (Output.has_mode thm_depsN) (fn () =>
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  let
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    val names = filter_out (equal "") (map Thm.name_of_thm ths);
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    val deps = filter_out (equal "")
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      (Symtab.keys (fold Proofterm.thms_of_proof
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        (map Thm.proof_of ths) Symtab.empty));
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  in
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    if null names orelse null deps then ()
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    else thm_deps_message (spaces_quote names, spaces_quote deps)
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  end);
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in
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fun setup_present_hook () =
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  Present.add_hook (fn _ => fn res => tell_thm_deps (maps #2 res));
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end;
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(** lexicalstructure element with keywords (PGIP version of elisp keywords file) **)
aspinall@21637
   355
aspinall@21637
   356
fun lexicalstructure_keywords () = 
aspinall@21637
   357
    let val commands = OuterSyntax.dest_keywords ()
aspinall@21637
   358
	fun category_of k = if (k mem commands) then "major" else "minor"
aspinall@21637
   359
         (* NB: we might filter to only include words like elisp case (OuterSyntax.is_keyword). *)
aspinall@21637
   360
    	fun keyword_elt (keyword,help,kind,_) = 
aspinall@21637
   361
  	    XML.Elem("keyword", [("word", keyword), ("category", category_of kind)],
aspinall@21637
   362
	  	     [XML.Elem("shorthelp", [], [XML.Text help])])
aspinall@21637
   363
        in 	    	    
aspinall@21637
   364
            (* Also, note we don't call init_outer_syntax here to add interface commands,
aspinall@21637
   365
            but they should never appear in scripts anyway so it shouldn't matter *)
aspinall@21637
   366
            Lexicalstructure {content = map keyword_elt (OuterSyntax.dest_parsers()) }
aspinall@21637
   367
        end
aspinall@21637
   368
aspinall@21637
   369
(* TODO: we can issue a lexicalstructure/keyword when the syntax gets extended dynamically;
aspinall@21637
   370
   hooks needed in outer_syntax.ML to do that. *)
aspinall@21637
   371
aspinall@21637
   372
aspinall@21637
   373
(* Configuration: GUI config, proverinfo messages *)
aspinall@21637
   374
aspinall@21637
   375
local
aspinall@21637
   376
    val isabellewww = "http://isabelle.in.tum.de/"
aspinall@21637
   377
    val staticconfig = "~~/lib/ProofGeneral/pgip_isar.xml"
aspinall@21637
   378
    fun orenv v d = case (getenv v) of "" => d  | s => s
aspinall@21637
   379
    fun config_file()  = orenv "ISABELLE_PGIPCONFIG" staticconfig
aspinall@21637
   380
    fun isabelle_www() = orenv "ISABELLE_HOMEPAGE" isabellewww
aspinall@21637
   381
in
aspinall@21637
   382
fun send_pgip_config () =
aspinall@21637
   383
    let
aspinall@21637
   384
        val path = Path.unpack (config_file())
aspinall@21637
   385
        val exists = File.exists path
aspinall@21637
   386
aspinall@21637
   387
	val wwwpage = 
aspinall@21637
   388
	    (Url.unpack (isabelle_www()))
aspinall@21637
   389
	    handle _ => 
aspinall@21637
   390
		   (Output.panic 
aspinall@21637
   391
			("Error in URL in environment variable ISABELLE_HOMEPAGE.");
aspinall@21637
   392
			Url.unpack isabellewww)
aspinall@21637
   393
		     
aspinall@21637
   394
	val proverinfo =
aspinall@21637
   395
            Proverinfo { name = "Isabelle",
aspinall@21637
   396
			 version = version,
aspinall@21637
   397
			 instance = Session.name(), 
aspinall@21637
   398
			 descr = "The Isabelle/Isar theorem prover",
aspinall@21637
   399
			 url = wwwpage,
aspinall@21637
   400
			 filenameextns = ".thy;" }
aspinall@21637
   401
    in
aspinall@21637
   402
        if exists then
aspinall@21637
   403
            (issue_pgip proverinfo; 
aspinall@21637
   404
	     issue_pgip_rawtext (File.read path);
aspinall@21637
   405
	     issue_pgip (lexicalstructure_keywords()))
aspinall@21637
   406
        else Output.panic ("PGIP configuration file \"" ^ config_file() ^ "\" not found")
aspinall@21637
   407
    end;
aspinall@21637
   408
end
aspinall@21637
   409
aspinall@21637
   410
aspinall@21637
   411
(* PGIP identifier tables (prover objects). [incomplete] *)
aspinall@21637
   412
aspinall@21637
   413
local
aspinall@21637
   414
    (* TODO: objtypes should be in pgip_types.ML *)
aspinall@21637
   415
    val objtype_thy  = "theory"
aspinall@21637
   416
    val objtype_thm  = "theorem"
aspinall@21637
   417
    val objtype_term = "term"
aspinall@21637
   418
    val objtype_type = "type"
aspinall@21637
   419
aspinall@21637
   420
    fun xml_idtable ty ctx ids =
aspinall@21637
   421
        PgipOutput.output (Idtable {objtype=ty,context=ctx,ids=ids})
aspinall@21637
   422
in
aspinall@21637
   423
aspinall@21637
   424
fun setids t = issue_pgip (Setids {idtables = [t]})
aspinall@21637
   425
fun addids t = issue_pgip (Addids {idtables = [t]})
aspinall@21637
   426
fun delids t = issue_pgip (Delids {idtables = [t]})
aspinall@21637
   427
aspinall@21637
   428
fun delallids ty = setids (xml_idtable ty NONE [])
aspinall@21637
   429
aspinall@21637
   430
fun send_thy_idtable ctx thys = setids (xml_idtable objtype_thy ctx thys)
aspinall@21637
   431
fun clear_thy_idtable () = delallids objtype_thy
aspinall@21637
   432
aspinall@21637
   433
fun send_thm_idtable ctx thy =
aspinall@21637
   434
    addids (xml_idtable objtype_thm ctx (map fst (PureThy.thms_of thy)));
aspinall@21637
   435
aspinall@21637
   436
fun clear_thm_idtable () = delallids objtype_thm
aspinall@21637
   437
aspinall@21637
   438
(* fun send_type_idtable thy = TODO, it's a bit low-level messy
aspinall@21637
   439
   & maybe not so useful anyway *)
aspinall@21637
   440
aspinall@21637
   441
end
aspinall@21637
   442
aspinall@21637
   443
aspinall@21637
   444
(* Sending commands to Isar *)
aspinall@21637
   445
aspinall@21637
   446
fun isarcmd s =
aspinall@21637
   447
    s |> OuterSyntax.scan |> OuterSyntax.read
aspinall@21637
   448
      |> map (Toplevel.position (Position.name "PGIP message") o #3) |> Toplevel.>>>;
aspinall@21637
   449
aspinall@21637
   450
(* how TODO: apply a command given a transition function, e.g. IsarCmd.undo *)
aspinall@21637
   451
aspinall@21637
   452
(* load an arbitrary file (must be .thy or .ML) *)
aspinall@21637
   453
aspinall@21637
   454
fun use_thy_or_ml_file file =
aspinall@21637
   455
    let
aspinall@21637
   456
        val (path,extn) = Path.split_ext (Path.unpack file)
aspinall@21637
   457
    in
aspinall@21637
   458
        case extn of
aspinall@21637
   459
            "" => isarcmd ("use_thy " ^ (quote (Path.pack path)))
aspinall@21637
   460
          | "thy" => isarcmd ("use_thy " ^ (quote (Path.pack path)))
aspinall@21637
   461
          | "ML" => isarcmd ("use " ^ quote file)
aspinall@21637
   462
          | other => error ("Don't know how to read a file with extension " ^ other)
aspinall@21637
   463
    end
aspinall@21637
   464
aspinall@21637
   465
aspinall@21637
   466
(**** PGIP actions ****)
aspinall@21637
   467
aspinall@21637
   468
aspinall@21637
   469
(* Responses to each of the PGIP input commands. 
aspinall@21637
   470
   These are programmed uniformly for extensibility. *)
aspinall@21637
   471
aspinall@21637
   472
fun askpgip vs = 
aspinall@21637
   473
    issue_pgip
aspinall@21637
   474
        (Usespgip { version = PgipIsabelle.isabelle_pgip_version_supported,
aspinall@21637
   475
		    pgipelems = PgipIsabelle.accepted_inputs })
aspinall@21637
   476
aspinall@21637
   477
fun askpgml vs = 
aspinall@21637
   478
    issue_pgip
aspinall@21637
   479
	(Usespgml { version = PgipIsabelle.isabelle_pgml_version_supported })
aspinall@21637
   480
aspinall@21637
   481
fun askprefs vs =
aspinall@21637
   482
    let 
aspinall@21637
   483
	fun preference_of {name, descr, default, pgiptype, get, set } = 
aspinall@21637
   484
	    { name = name, descr = SOME descr, default = SOME default, 
aspinall@21637
   485
	      pgiptype = pgiptype }
aspinall@21637
   486
    in
aspinall@21637
   487
	List.app (fn (prefcat, prefs) =>
aspinall@21637
   488
		     issue_pgip (Hasprefs {prefcategory=SOME prefcat, 
aspinall@21637
   489
					   prefs=map preference_of prefs}))
aspinall@21637
   490
                 Preferences.preferences
aspinall@21637
   491
    end 
aspinall@21637
   492
aspinall@21637
   493
fun askconfig vs = () (* TODO: add config response *)
aspinall@21637
   494
aspinall@21637
   495
local
aspinall@21637
   496
    fun lookuppref pref = 
aspinall@21637
   497
	case AList.lookup (op =) 
aspinall@21637
   498
			  (map (fn p => (#name p,p))
aspinall@21637
   499
			       (maps snd Preferences.preferences)) pref of
aspinall@21637
   500
	    NONE => error ("Unknown prover preference: " ^ quote pref)
aspinall@21637
   501
	  | SOME p => p
aspinall@21637
   502
in
aspinall@21637
   503
fun setpref vs = 
aspinall@21637
   504
    let 
aspinall@21637
   505
	val name = #name vs
aspinall@21637
   506
	val value = #value vs
aspinall@21637
   507
	val set = #set (lookuppref name)
aspinall@21637
   508
    in
aspinall@21637
   509
	set value
aspinall@21637
   510
    end
aspinall@21637
   511
aspinall@21637
   512
fun getpref vs =
aspinall@21637
   513
    let 
aspinall@21637
   514
	val name = #name vs
aspinall@21637
   515
	val get = #get (lookuppref name)
aspinall@21637
   516
    in 
aspinall@21637
   517
        issue_pgip (Prefval {name=name, value=get ()})
aspinall@21637
   518
    end
aspinall@21637
   519
end
aspinall@21637
   520
aspinall@21637
   521
fun proverinit vs = restart ()
aspinall@21637
   522
aspinall@21637
   523
fun proverexit vs = isarcmd "quit"
aspinall@21637
   524
aspinall@21637
   525
fun startquiet vs = isarcmd "disable_pr"
aspinall@21637
   526
aspinall@21637
   527
fun stopquiet vs = isarcmd "enable_pr"
aspinall@21637
   528
aspinall@21637
   529
fun pgmlsymbolson vs = 
aspinall@21637
   530
    change print_mode (fn mode =>
aspinall@21637
   531
			  remove (op =) Symbol.xsymbolsN mode @ [Symbol.xsymbolsN])
aspinall@21637
   532
aspinall@21637
   533
fun pgmlsymbolsoff vs =
aspinall@21637
   534
    change print_mode (remove (op =) Symbol.xsymbolsN)
aspinall@21637
   535
aspinall@21637
   536
fun dostep vs = 
aspinall@21637
   537
    let 
aspinall@21637
   538
	val text = #text vs
aspinall@21637
   539
    in 
aspinall@21637
   540
	isarcmd text
aspinall@21637
   541
    end
aspinall@21637
   542
aspinall@21637
   543
fun undostep vs =
aspinall@21637
   544
    let 
aspinall@21637
   545
	val times = #times vs
aspinall@21637
   546
    in 
aspinall@21637
   547
	isarcmd ("undos_proof " ^ (Int.toString times))
aspinall@21637
   548
    end
aspinall@21637
   549
aspinall@21637
   550
fun redostep vs = isarcmd "redo"
aspinall@21637
   551
    
aspinall@21637
   552
fun abortgoal vs = isarcmd "ProofGeneral.kill_proof" 
aspinall@21637
   553
aspinall@21637
   554
aspinall@21637
   555
fun askids vs = 
aspinall@21637
   556
    let
aspinall@21637
   557
	val thyname = #thyname vs
aspinall@21637
   558
	val objtype = #objtype vs
aspinall@21637
   559
    in 
aspinall@21637
   560
	(* TODO: add askids for "file" here, which returns single theory with same name *)
aspinall@21637
   561
	case (thyname,objtype) of 
aspinall@21637
   562
           (* only theories known in top context *)
aspinall@21637
   563
	   (NONE, NONE) =>  send_thy_idtable NONE (ThyInfo.names())
aspinall@21637
   564
	 | (NONE, SOME "theory")  => send_thy_idtable NONE (ThyInfo.names())
aspinall@21637
   565
	 | (SOME thy, SOME "theory") => send_thy_idtable (SOME thy) (ThyInfo.get_preds thy)
aspinall@21637
   566
	 | (SOME thy, SOME "theorem") => send_thm_idtable (SOME thy) (ThyInfo.get_theory thy)
aspinall@21637
   567
	 | (SOME thy, NONE) => (send_thy_idtable (SOME thy) (ThyInfo.get_preds thy);
aspinall@21637
   568
                               send_thm_idtable (SOME thy) (ThyInfo.get_theory thy))
aspinall@21637
   569
	 | (_, SOME ot) => error ("No objects of type "^(quote ot)^" are available here.")
aspinall@21637
   570
    end
aspinall@21637
   571
aspinall@21637
   572
local
aspinall@21637
   573
  (* accumulate printed output in a single PGIP response (inside <pgmltext>) *)
aspinall@21637
   574
  fun with_displaywrap pgipfn dispfn =
aspinall@21637
   575
      let
aspinall@21637
   576
	  val lines = ref ([]: string list);
aspinall@21637
   577
	  fun wlgrablines s = lines := s :: ! lines;
aspinall@21637
   578
      in
aspinall@21637
   579
	  setmp writeln_fn wlgrablines dispfn ();
aspinall@21637
   580
	  issue_pgip (pgipfn (!lines))
aspinall@21637
   581
      end;
aspinall@21637
   582
in
aspinall@21637
   583
fun showid vs = 
aspinall@21637
   584
    let
aspinall@21637
   585
	val thyname = #thyname vs
aspinall@21637
   586
	val objtype = #objtype vs
aspinall@21637
   587
	val name = #objtype vs
aspinall@21637
   588
	val topthy = Toplevel.theory_of o Toplevel.get_state
aspinall@21637
   589
aspinall@21637
   590
	fun idvalue objtype name strings =
aspinall@21637
   591
	    Idvalue { name=name, objtype=objtype,
aspinall@21637
   592
		      text=[XML.Elem("pgmltext",[],map XML.Text strings)] }
aspinall@21637
   593
aspinall@21637
   594
	fun pthm thy name = print_thm (get_thm thy (Name name))
aspinall@21637
   595
    in 
aspinall@21637
   596
	case (thyname, objtype) of 
aspinall@21637
   597
	    (_,"theory") =>
aspinall@21637
   598
	    with_displaywrap (idvalue "theory" name) 
aspinall@21637
   599
			     (fn ()=>(print_theory (ThyInfo.get_theory name)))
aspinall@21637
   600
	  | (SOME thy, "theorem") =>
aspinall@21637
   601
	    with_displaywrap (idvalue "theorem" name) 
aspinall@21637
   602
			     (fn ()=>(pthm (ThyInfo.get_theory thy) name))
aspinall@21637
   603
	  | (NONE, "theorem") =>
aspinall@21637
   604
	    with_displaywrap (idvalue "theorem" name) 
aspinall@21637
   605
			     (fn ()=>pthm (topthy()) name)
aspinall@21637
   606
	  | (_, ot) => error ("Cannot show objects of type "^ot)
aspinall@21637
   607
    end
aspinall@21637
   608
aspinall@21637
   609
(* The file which is currently being processed interactively.  
aspinall@21637
   610
   In the pre-PGIP code, this was informed to Isabelle and the theory loader
aspinall@21637
   611
   on completion, but that allows for circularity in case we read
aspinall@21637
   612
   ourselves.  So PGIP opens the filename at the start of a script.
aspinall@21637
   613
   We ought to prevent problems by modifying the theory loader to know
aspinall@21637
   614
   about this special status, but for now we just keep a local reference. 
aspinall@21637
   615
*) 
aspinall@21637
   616
aspinall@21637
   617
val currently_open_file = ref (NONE : pgipurl option)
aspinall@21637
   618
aspinall@21637
   619
fun askguise vs = 
aspinall@21637
   620
    (* The "guise" is the PGIP abstraction of the prover's state.
aspinall@21637
   621
       The <informguise> message is merely used for consistency checking. *)
aspinall@21637
   622
    let 
aspinall@21637
   623
	val openfile = !currently_open_file
aspinall@21637
   624
aspinall@21637
   625
	val topthy = Toplevel.theory_of o Toplevel.get_state
aspinall@21637
   626
	val topthy_name = Context.theory_name o topthy
aspinall@21637
   627
aspinall@21637
   628
	val opentheory = SOME (topthy_name()) handle Toplevel.UNDEF => NONE
aspinall@21637
   629
aspinall@21637
   630
	fun topproofpos () = try Toplevel.proof_position_of (Isar.state ());
aspinall@21637
   631
	val openproofpos = topproofpos()
aspinall@21637
   632
    in
aspinall@21637
   633
        issue_pgip (Informguise { file = openfile,
aspinall@21637
   634
				  theory = opentheory,
aspinall@21637
   635
				  (* would be nice to get thm name... *)
aspinall@21637
   636
				  theorem = NONE,
aspinall@21637
   637
				  proofpos = openproofpos })
aspinall@21637
   638
    end
aspinall@21637
   639
aspinall@21637
   640
fun parsescript vs =
aspinall@21637
   641
    let
aspinall@21637
   642
	val text = #text vs
aspinall@21637
   643
	val systemdata = #systemdata vs      
aspinall@21637
   644
	val location = #location vs   (* TODO: extract position *)
aspinall@21637
   645
aspinall@21637
   646
        val _ = start_delay_msgs ()  (* gather parsing messages *)
aspinall@21637
   647
        val xmls = PgipParser.xmls_of_str text
aspinall@21637
   648
        val errs = end_delayed_msgs ()
aspinall@21637
   649
aspinall@21637
   650
	val sysattrs = PgipTypes.opt_attr "systemdata" systemdata
aspinall@21637
   651
	val locattrs = PgipTypes.attrs_of_location location
aspinall@21637
   652
     in
aspinall@21637
   653
        issue_pgip (Parseresult { attrs= sysattrs@locattrs,
aspinall@21637
   654
				  content = (map PgipOutput.output errs)@xmls })
aspinall@21637
   655
    end
aspinall@21637
   656
aspinall@21637
   657
fun showproofstate vs = isarcmd "pr"
aspinall@21637
   658
aspinall@21637
   659
fun showctxt vs = isarcmd "print_theory"   (* more useful than print_context *)
aspinall@21637
   660
aspinall@21637
   661
fun searchtheorems vs =
aspinall@21637
   662
    let 
aspinall@21637
   663
	val arg = #arg vs
aspinall@21637
   664
    in
aspinall@21637
   665
	isarcmd ("thms_containing " ^ arg)
aspinall@21637
   666
    end
aspinall@21637
   667
aspinall@21637
   668
fun setlinewidth vs = 
aspinall@21637
   669
    let 
aspinall@21637
   670
	val width = #width vs
aspinall@21637
   671
    in
aspinall@21637
   672
	isarcmd ("pretty_setmargin " ^ (Int.toString width)) (* FIXME: conversion back/forth! *)
aspinall@21637
   673
    end
aspinall@21637
   674
aspinall@21637
   675
fun viewdoc vs =
aspinall@21637
   676
    let 
aspinall@21637
   677
	val arg = #arg vs
aspinall@21637
   678
    in 
aspinall@21637
   679
	isarcmd ("print_" ^ arg)   (* FIXME: isatool doc?.  Return URLs, maybe? *)
aspinall@21637
   680
    end
aspinall@21637
   681
aspinall@21637
   682
fun doitem vs =
aspinall@21637
   683
    let
aspinall@21637
   684
	val text = #text vs
aspinall@21637
   685
    in
aspinall@21637
   686
	isarcmd text
aspinall@21637
   687
    end
aspinall@21637
   688
aspinall@21637
   689
fun undoitem vs =
aspinall@21637
   690
    isarcmd "ProofGeneral.undo"
aspinall@21637
   691
aspinall@21637
   692
fun redoitem vs =
aspinall@21637
   693
    isarcmd "ProofGeneral.redo"
aspinall@21637
   694
aspinall@21637
   695
fun aborttheory vs = 
aspinall@21637
   696
    isarcmd "init_toplevel"
aspinall@21637
   697
aspinall@21637
   698
fun retracttheory vs =
aspinall@21637
   699
    let 
aspinall@21637
   700
	val thyname = #thyname vs
aspinall@21637
   701
    in
aspinall@21637
   702
	isarcmd ("kill_thy " ^ quote thyname)
aspinall@21637
   703
    end
aspinall@21637
   704
aspinall@21637
   705
fun loadfile vs = 
aspinall@21637
   706
    let 
aspinall@21637
   707
	val url = #url vs
aspinall@21637
   708
    in 
aspinall@21637
   709
	case !currently_open_file of
aspinall@21637
   710
            SOME f => raise PGIP ("<loadfile> when a file is open!")
aspinall@21637
   711
          | NONE => use_thy_or_ml_file (File.platform_path url)
aspinall@21637
   712
    end
aspinall@21637
   713
aspinall@21637
   714
fun openfile vs =
aspinall@21637
   715
  let 
aspinall@21637
   716
      val url = #url vs
aspinall@21637
   717
  in
aspinall@21637
   718
      case !currently_open_file of
aspinall@21637
   719
          SOME f => raise PGIP ("<openfile> when a file is already open! ")
aspinall@21637
   720
        | NONE => (openfile_retract (File.platform_path url);
aspinall@21637
   721
		   currently_open_file := SOME url) (*(File.platform_path url))*)
aspinall@21637
   722
  end
aspinall@21637
   723
aspinall@21637
   724
fun closefile vs =
aspinall@21637
   725
    case !currently_open_file of
aspinall@21637
   726
        SOME f => (proper_inform_file_processed (File.platform_path f) 
aspinall@21637
   727
						(Isar.state());
aspinall@21637
   728
                   currently_open_file := NONE)
aspinall@21637
   729
      | NONE => raise PGIP ("<closefile> when no file is open!")
aspinall@21637
   730
aspinall@21637
   731
fun abortfile vs =
aspinall@21637
   732
    case !currently_open_file of
aspinall@21637
   733
        SOME f => (isarcmd "init_toplevel";
aspinall@21637
   734
		   currently_open_file := NONE)
aspinall@21637
   735
      | NONE => raise PGIP ("<abortfile> when no file is open!")
aspinall@21637
   736
aspinall@21637
   737
fun retractfile vs = 
aspinall@21637
   738
    let 
aspinall@21637
   739
	val url = #url vs
aspinall@21637
   740
    in
aspinall@21637
   741
	case !currently_open_file of
aspinall@21637
   742
            SOME f => raise PGIP ("<retractfile> when a file is open!")
aspinall@21637
   743
          | NONE => inform_file_retracted (File.platform_path url)
aspinall@21637
   744
    end
aspinall@21637
   745
aspinall@21637
   746
(* Path management: we allow theory files to have dependencies in
aspinall@21637
   747
   their own directory, but when we change directory for a new file we
aspinall@21637
   748
   remove the path.  Leaving it there can cause confusion with
aspinall@21637
   749
   difference in batch mode.
aspinall@21637
   750
   NB: PGIP does not assume that the prover has a load path. 
aspinall@21637
   751
*)
aspinall@21637
   752
aspinall@21637
   753
local
aspinall@21637
   754
    val current_working_dir = ref (NONE : string option)
aspinall@21637
   755
in
aspinall@21637
   756
fun changecwd vs = 
aspinall@21637
   757
    let 
aspinall@21637
   758
	val url = #url vs
aspinall@21637
   759
	val newdir = File.platform_path url
aspinall@21637
   760
    in
aspinall@21637
   761
        (case (!current_working_dir) of
aspinall@21637
   762
             NONE => ()
aspinall@21637
   763
           | SOME dir => ThyLoad.del_path dir;
aspinall@21637
   764
         ThyLoad.add_path newdir;
aspinall@21637
   765
         current_working_dir := SOME newdir)
aspinall@21637
   766
    end
aspinall@21637
   767
end
aspinall@21637
   768
aspinall@21637
   769
aspinall@21637
   770
fun systemcmd vs =
aspinall@21637
   771
  let 
aspinall@21637
   772
      val arg = #arg vs
aspinall@21637
   773
  in
aspinall@21637
   774
      isarcmd arg
aspinall@21637
   775
  end
aspinall@21637
   776
aspinall@21637
   777
exception PGIP_QUIT;
aspinall@21637
   778
fun quitpgip vs = raise PGIP_QUIT
aspinall@21637
   779
aspinall@21637
   780
fun process_input inp = case inp of
aspinall@21637
   781
     Pgip.Askpgip vs         => askpgip vs
aspinall@21637
   782
   | Pgip.Askpgml vs         => askpgml vs
aspinall@21637
   783
   | Pgip.Askprefs vs        => askprefs vs 
aspinall@21637
   784
   | Pgip.Askconfig vs       => askconfig vs
aspinall@21637
   785
   | Pgip.Getpref vs         => getpref vs
aspinall@21637
   786
   | Pgip.Setpref vs         => setpref vs
aspinall@21637
   787
   | Pgip.Proverinit vs      => proverinit vs
aspinall@21637
   788
   | Pgip.Proverexit vs      => proverexit vs
aspinall@21637
   789
   | Pgip.Startquiet vs      => startquiet vs
aspinall@21637
   790
   | Pgip.Stopquiet vs       => stopquiet vs
aspinall@21637
   791
   | Pgip.Pgmlsymbolson vs   => pgmlsymbolson vs
aspinall@21637
   792
   | Pgip.Pgmlsymbolsoff vs  => pgmlsymbolsoff vs
aspinall@21637
   793
   | Pgip.Dostep vs          => dostep vs
aspinall@21637
   794
   | Pgip.Undostep vs        => undostep vs
aspinall@21637
   795
   | Pgip.Redostep vs        => redostep vs
aspinall@21637
   796
   | Pgip.Forget vs	     => (error "<forget> not implemented")
aspinall@21637
   797
   | Pgip.Restoregoal vs     => (error "<restoregoal> not implemented")
aspinall@21637
   798
   | Pgip.Abortgoal vs       => abortgoal vs
aspinall@21637
   799
   | Pgip.Askids vs          => askids vs
aspinall@21637
   800
   | Pgip.Showid vs          => showid vs
aspinall@21637
   801
   | Pgip.Askguise vs	     => askguise vs
aspinall@21637
   802
   | Pgip.Parsescript vs     => parsescript vs
aspinall@21637
   803
   | Pgip.Showproofstate vs  => showproofstate vs
aspinall@21637
   804
   | Pgip.Showctxt vs        => showctxt vs
aspinall@21637
   805
   | Pgip.Searchtheorems vs  => searchtheorems vs
aspinall@21637
   806
   | Pgip.Setlinewidth vs    => setlinewidth vs
aspinall@21637
   807
   | Pgip.Viewdoc vs         => viewdoc vs
aspinall@21637
   808
   | Pgip.Doitem vs          => doitem vs
aspinall@21637
   809
   | Pgip.Undoitem vs        => undoitem vs
aspinall@21637
   810
   | Pgip.Redoitem vs        => redoitem vs
aspinall@21637
   811
   | Pgip.Aborttheory vs     => aborttheory vs
aspinall@21637
   812
   | Pgip.Retracttheory vs   => retracttheory vs
aspinall@21637
   813
   | Pgip.Loadfile vs	     => loadfile vs
aspinall@21637
   814
   | Pgip.Openfile vs	     => openfile vs
aspinall@21637
   815
   | Pgip.Closefile vs	     => closefile vs
aspinall@21637
   816
   | Pgip.Abortfile vs	     => abortfile vs
aspinall@21637
   817
   | Pgip.Retractfile vs     => retractfile vs
aspinall@21637
   818
   | Pgip.Changecwd vs	     => changecwd vs
aspinall@21637
   819
   | Pgip.Systemcmd vs	     => systemcmd vs
aspinall@21637
   820
   | Pgip.Quitpgip vs        => quitpgip vs
aspinall@21637
   821
aspinall@21637
   822
aspinall@21637
   823
fun process_pgip_element pgipxml = 
aspinall@21637
   824
    case pgipxml of
aspinall@21637
   825
	(xml as (XML.Elem elem)) =>
aspinall@21637
   826
	(case Pgip.input elem of
aspinall@21637
   827
	     NONE => warning ("Unrecognized PGIP command, ignored: \n" ^
aspinall@21637
   828
			      (XML.string_of_tree xml))
aspinall@21637
   829
	   | SOME inp => (process_input inp)) (* errors later; packet discarded *)
aspinall@21637
   830
      | (XML.Text t) => ignored_text_warning t
aspinall@21637
   831
      |	(XML.Rawtext t) => ignored_text_warning t
aspinall@21637
   832
and ignored_text_warning t =
aspinall@21637
   833
    if (size (Symbol.strip_blanks t) > 0) then
aspinall@21637
   834
	   warning ("Ignored text in PGIP packet: \n" ^ t)
aspinall@21637
   835
    else ()
aspinall@21637
   836
aspinall@21637
   837
fun process_pgip_tree xml =
aspinall@21637
   838
    (pgip_refid := NONE;
aspinall@21637
   839
     pgip_refseq := NONE;
aspinall@21637
   840
     (case xml of
aspinall@21637
   841
          XML.Elem ("pgip", attrs, pgips) =>
aspinall@21637
   842
          (let
aspinall@21637
   843
               val class = PgipTypes.get_attr "class" attrs
aspinall@21637
   844
               val dest  = PgipTypes.get_attr_opt "destid" attrs
aspinall@21637
   845
               val _ = (pgip_refid :=  PgipTypes.get_attr_opt "id" attrs)
aspinall@21637
   846
	       val _ = (pgip_refseq := Option.join 
aspinall@21637
   847
					   (Option.map Int.fromString
aspinall@21637
   848
						  (PgipTypes.get_attr_opt "seq" attrs)))
aspinall@21637
   849
               (* Respond to prover broadcasts, or messages for us. Ignore rest *)
aspinall@21637
   850
	       val processit = 
aspinall@21637
   851
		   case dest of
aspinall@21637
   852
                       NONE =>    class = "pa"
aspinall@21637
   853
		     | SOME id => matching_pgip_id id
aspinall@21637
   854
           in
aspinall@21637
   855
               if processit then 
aspinall@21637
   856
		   (List.app process_pgip_element pgips; true) 
aspinall@21637
   857
	       else false
aspinall@21637
   858
           end)
aspinall@21637
   859
        | _ => raise PGIP "Invalid PGIP packet received")
aspinall@21637
   860
     handle PGIP msg =>
aspinall@21637
   861
            (Output.error_msg ((msg ^ "\nPGIP error occured in XML text below:\n") ^
aspinall@21637
   862
			       (XML.string_of_tree xml));
aspinall@21637
   863
	     true))
aspinall@21637
   864
aspinall@21637
   865
val process_pgip = K () o process_pgip_tree o XML.tree_of_string
aspinall@21637
   866
aspinall@21637
   867
end
aspinall@21637
   868
aspinall@21637
   869
aspinall@21637
   870
(* PGIP loop: process PGIP input only *)
aspinall@21637
   871
aspinall@21637
   872
local
aspinall@21637
   873
aspinall@21637
   874
exception XML_PARSE
aspinall@21637
   875
aspinall@21637
   876
fun loop ready src =
aspinall@21637
   877
    let
aspinall@21637
   878
        val _ = if ready then issue_pgip (Ready ()) else ()
aspinall@21637
   879
        val pgipo = (Source.get_single src)
aspinall@21637
   880
                        handle e => raise XML_PARSE
aspinall@21637
   881
    in
aspinall@21637
   882
        case pgipo of
aspinall@21637
   883
             NONE  => ()
aspinall@21637
   884
           | SOME (pgip,src') =>
aspinall@21637
   885
             let
aspinall@21637
   886
                 val ready' = (process_pgip_tree pgip) 
aspinall@21637
   887
				handle e => (handler (e,SOME src'); true)
aspinall@21637
   888
             in
aspinall@21637
   889
                 loop ready' src'
aspinall@21637
   890
             end
aspinall@21637
   891
    end handle e => handler (e,SOME src)  (* error in XML parse or Ready issue *)
aspinall@21637
   892
aspinall@21637
   893
and handler (e,srco) =
aspinall@21637
   894
    case (e,srco) of
aspinall@21637
   895
        (XML_PARSE,SOME src) =>
aspinall@21637
   896
        Output.panic "Invalid XML input, aborting"
aspinall@21637
   897
      | (PGIP_QUIT,_) => ()
aspinall@21637
   898
      | (Interrupt,SOME src) => 
aspinall@21637
   899
	(Output.error_msg "Interrupt during PGIP processing"; loop true src)
aspinall@21637
   900
      | (Toplevel.UNDEF,SOME src) => 
aspinall@21637
   901
	(Output.error_msg "No working context defined"; loop true src)
aspinall@21637
   902
      | (e,SOME src) => 
aspinall@21637
   903
	(Output.error_msg (Toplevel.exn_message e); loop true src)
aspinall@21637
   904
      | (_,NONE) => ()
aspinall@21637
   905
in
aspinall@21637
   906
  (* TODO: add socket interface *)
aspinall@21637
   907
aspinall@21637
   908
  val xmlP = XML.scan_comment_whspc |-- XML.parse_elem >> single
aspinall@21637
   909
aspinall@21637
   910
  val tty_src = Source.set_prompt "" (Source.source Symbol.stopper xmlP NONE Source.tty)
aspinall@21637
   911
aspinall@21637
   912
  fun pgip_toplevel x = loop true x
aspinall@21637
   913
end
aspinall@21637
   914
aspinall@21637
   915
aspinall@21637
   916
(* additional outer syntax for Isar *)  
aspinall@21637
   917
(* da: TODO: perhaps we can drop this superfluous syntax now??
aspinall@21637
   918
   Seems cleaner to support the operations directly above in the PGIP actions.
aspinall@21637
   919
 *)
aspinall@21637
   920
aspinall@21637
   921
local structure P = OuterParse and K = OuterKeyword in
aspinall@21637
   922
aspinall@21637
   923
val undoP = (*undo without output*)
aspinall@21637
   924
  OuterSyntax.improper_command "ProofGeneral.undo" "(internal)" K.control
aspinall@21637
   925
    (Scan.succeed (Toplevel.no_timing o IsarCmd.undo));
aspinall@21637
   926
aspinall@21637
   927
val redoP = (*redo without output*)
aspinall@21637
   928
  OuterSyntax.improper_command "ProofGeneral.redo" "(internal)" K.control
aspinall@21637
   929
    (Scan.succeed (Toplevel.no_timing o IsarCmd.redo));
aspinall@21637
   930
aspinall@21637
   931
(* da: what were these context commands ones for? *)
aspinall@21637
   932
val context_thy_onlyP =
aspinall@21637
   933
  OuterSyntax.improper_command "ProofGeneral.context_thy_only" "(internal)" K.control
aspinall@21637
   934
    (P.name >> (Toplevel.no_timing oo IsarCmd.init_context update_thy_only));
aspinall@21637
   935
aspinall@21637
   936
val try_context_thy_onlyP =
aspinall@21637
   937
  OuterSyntax.improper_command "ProofGeneral.try_context_thy_only" "(internal)" K.control
aspinall@21637
   938
    (P.name >> (Toplevel.no_timing oo
aspinall@21637
   939
      (Toplevel.imperative (K ()) oo IsarCmd.init_context try_update_thy_only)));
aspinall@21637
   940
aspinall@21637
   941
(* ProofGeneral.kill_proof still used above *)
aspinall@21637
   942
val kill_proofP =
aspinall@21637
   943
  OuterSyntax.improper_command "ProofGeneral.kill_proof" "(internal)" K.control
aspinall@21637
   944
    (Scan.succeed (Toplevel.no_timing o IsarCmd.kill_proof_notify tell_clear_goals));
aspinall@21637
   945
aspinall@21637
   946
(* FIXME: Not quite same as commands used above *)
aspinall@21637
   947
val inform_file_processedP =
aspinall@21637
   948
  OuterSyntax.improper_command "ProofGeneral.inform_file_processed" "(internal)" K.control
aspinall@21637
   949
    (P.name >> (fn file => Toplevel.no_timing o
aspinall@21637
   950
      Toplevel.keep (vacuous_inform_file_processed file) o
aspinall@21637
   951
      Toplevel.kill o
aspinall@21637
   952
      Toplevel.keep (proper_inform_file_processed file)));
aspinall@21637
   953
aspinall@21637
   954
val inform_file_retractedP =
aspinall@21637
   955
  OuterSyntax.improper_command "ProofGeneral.inform_file_retracted" "(internal)" K.control
aspinall@21637
   956
    (P.name >> (Toplevel.no_timing oo
aspinall@21637
   957
      (fn file => Toplevel.imperative (fn () => inform_file_retracted file))));
aspinall@21637
   958
aspinall@21637
   959
(* This one can actually be used for Daniel's interface scripting idea: generically!! *)
aspinall@21637
   960
val process_pgipP =
aspinall@21637
   961
  OuterSyntax.improper_command "ProofGeneral.process_pgip" "(internal)" K.control
aspinall@21637
   962
    (P.text >> (Toplevel.no_timing oo
aspinall@21637
   963
      (fn txt => Toplevel.imperative (fn () => process_pgip txt))));
aspinall@21637
   964
aspinall@21637
   965
fun init_outer_syntax () = OuterSyntax.add_parsers
aspinall@21637
   966
 [undoP, redoP, kill_proofP, context_thy_onlyP, try_context_thy_onlyP,
aspinall@21637
   967
  inform_file_processedP, inform_file_retractedP, process_pgipP];
aspinall@21637
   968
aspinall@21637
   969
end;
aspinall@21637
   970
aspinall@21637
   971
aspinall@21637
   972
(* init *)
aspinall@21637
   973
aspinall@21637
   974
val initialized = ref false;
aspinall@21637
   975
aspinall@21637
   976
(* ML top level only for testing, entered on <quitpgip> *)
aspinall@21637
   977
fun set_prompts () = ml_prompts "ML> " "ML# ";
aspinall@21637
   978
aspinall@21637
   979
fun init_setup () =
aspinall@21637
   980
  (conditional (not (! initialized)) (fn () =>
aspinall@21637
   981
   (setmp warning_fn (K ()) init_outer_syntax ();
aspinall@21637
   982
    setup_xsymbols_output ();
aspinall@21637
   983
    setup_pgml_output ();
aspinall@21637
   984
    setup_messages ();
aspinall@21637
   985
    setup_state ();
aspinall@21637
   986
    setup_thy_loader ();
aspinall@21637
   987
    setup_present_hook ();
aspinall@21637
   988
    init_pgip_session_id ();
aspinall@21637
   989
    welcome ();
aspinall@21637
   990
    set initialized; ()));
aspinall@21637
   991
  sync_thy_loader ();
aspinall@21637
   992
  change print_mode (cons proof_generalN o remove (op =) proof_generalN);
aspinall@21637
   993
  change print_mode (append [pgmlN, pgmlatomsN] o subtract (op =) [pgmlN, pgmlatomsN]);
aspinall@21637
   994
  set_prompts ());
aspinall@21637
   995
aspinall@21637
   996
fun init_pgip false = Output.panic "PGIP not supported for Isabelle/classic mode."
aspinall@21637
   997
  | init_pgip true = (init_setup (); pgip_toplevel tty_src);
aspinall@21637
   998
aspinall@21637
   999
fun write_keywords s = ()  (* NB: do nothing *)
aspinall@21637
  1000
aspinall@21637
  1001
end;
aspinall@21637
  1002