(*  Title:      Doc/antiquote_setup.ML

    Author:     Makarius

Auxiliary antiquotations for the Isabelle manuals.

*)

structure Antiquote_Setup: sig end =

struct

(* misc utils *)

fun translate f = Symbol.explode #> map f #> implode;

val clean_string = translate

  (fn "_" => "\\_"

    | "#" => "\\#"

    | "$" => "\\$"

    | "%" => "\\%"

    | "<" => "$<$"

    | ">" => "$>$"

    | "{" => "\\{"

    | "|" => "$\\mid$"

    | "}" => "\\}"

    | "\<hyphen>" => "-"

    | c => c);

fun clean_name "\<dots>" = "dots"

  | clean_name ".." = "ddot"

  | clean_name "." = "dot"

  | clean_name "_" = "underscore"

  | clean_name "{" = "braceleft"

  | clean_name "}" = "braceright"

  | clean_name s = s |> translate (fn "_" => "-" | "\<hyphen>" => "-" | c => c);

(* ML text *)

local

fun ml_val (toks1, []) = ML_Lex.read "fn _ => (" @ toks1 @ ML_Lex.read ");"

  | ml_val (toks1, toks2) =

      ML_Lex.read "fn _ => (" @ toks1 @ ML_Lex.read " : " @ toks2 @ ML_Lex.read ");";

fun ml_op (toks1, []) = ML_Lex.read "fn _ => (op " @ toks1 @ ML_Lex.read ");"

  | ml_op (toks1, toks2) =

      ML_Lex.read "fn _ => (op " @ toks1 @ ML_Lex.read " : " @ toks2 @ ML_Lex.read ");";

fun ml_type (toks1, []) = ML_Lex.read "val _ = NONE : (" @ toks1 @ ML_Lex.read ") option;"

  | ml_type (toks1, toks2) =

      ML_Lex.read "val _ = [NONE : (" @ toks1 @ ML_Lex.read ") option, NONE : (" @

        toks2 @ ML_Lex.read ") option];";

fun ml_exception (toks1, []) = ML_Lex.read "fn _ => (" @ toks1 @ ML_Lex.read " : exn);"

  | ml_exception (toks1, toks2) =

      ML_Lex.read "fn _ => (" @ toks1 @ ML_Lex.read " : " @ toks2 @ ML_Lex.read " -> exn);";

fun ml_structure (toks, _) =

  ML_Lex.read "functor XXX() = struct structure XX = " @ toks @ ML_Lex.read " end;";

fun ml_functor (Antiquote.Text tok :: _, _) =

      ML_Lex.read "ML_Env.check_functor " @

      ML_Lex.read (ML_Syntax.print_string (ML_Lex.content_of tok))

  | ml_functor _ = raise Fail "Bad ML functor specification";

val is_name =

  ML_Lex.kind_of #> (fn kind => kind = ML_Lex.Ident orelse kind = ML_Lex.Long_Ident);

fun ml_name txt =

  (case filter is_name (ML_Lex.tokenize txt) of

    toks as [_] => ML_Lex.flatten toks

  | _ => error ("Single ML name expected in input: " ^ quote txt));

fun prep_ml source =

  (Input.source_content source, ML_Lex.read_source false source);

fun index_ml name kind ml = Thy_Output.antiquotation name

  (Scan.lift (Args.text_input -- Scan.option (Args.colon |-- Args.text_input)))

  (fn {context = ctxt, ...} => fn (source1, opt_source2) =>

    let

      val (txt1, toks1) = prep_ml source1;

      val (txt2, toks2) =

        (case opt_source2 of

          SOME source => prep_ml source

        | NONE => ("", []));

      val txt =

        if txt2 = "" then txt1

        else if kind = "type" then txt1 ^ " = " ^ txt2

        else if kind = "exception" then txt1 ^ " of " ^ txt2

        else if Symbol_Pos.is_identifier (Long_Name.base_name (ml_name txt1))

        then txt1 ^ ": " ^ txt2

        else txt1 ^ " : " ^ txt2;

      val txt' = if kind = "" then txt else kind ^ " " ^ txt;

      val pos = Input.pos_of source1;

      val _ =

        ML_Context.eval_in (SOME ctxt) ML_Compiler.flags pos (ml (toks1, toks2))

          handle ERROR msg => error (msg ^ Position.here pos);

      val kind' = if kind = "" then "ML" else "ML " ^ kind;

    in

      "\\indexdef{}{" ^ kind' ^ "}{" ^ clean_string (ml_name txt1) ^ "}" ^

      (Thy_Output.verbatim_text ctxt txt')

    end);

in

val _ =

  Theory.setup

   (index_ml @{binding index_ML} "" ml_val #>

    index_ml @{binding index_ML_op} "infix" ml_op #>

    index_ml @{binding index_ML_type} "type" ml_type #>

    index_ml @{binding index_ML_exception} "exception" ml_exception #>

    index_ml @{binding index_ML_structure} "structure" ml_structure #>

    index_ml @{binding index_ML_functor} "functor" ml_functor);

end;

(* named theorems *)

val _ =

  Theory.setup (Thy_Output.antiquotation @{binding named_thms}

    (Scan.repeat (Attrib.thm -- Scan.lift (Args.parens Args.name)))

    (fn {context = ctxt, ...} =>

      map (apfst (Thy_Output.pretty_thm ctxt))

      #> (if Config.get ctxt Thy_Output.quotes then map (apfst Pretty.quote) else I)

      #> (if Config.get ctxt Thy_Output.display

          then

            map (fn (p, name) =>

              Output.output

                (Thy_Output.string_of_margin ctxt

                  (Pretty.indent (Config.get ctxt Thy_Output.indent) p)) ^

              "\\rulename{" ^ Output.output (Pretty.str_of (Thy_Output.pretty_text ctxt name)) ^ "}")

            #> space_implode "\\par\\smallskip%\n"

            #> Latex.environment "isabelle"

          else

            map (fn (p, name) =>

              Output.output (Pretty.str_of p) ^

              "\\rulename{" ^ Output.output (Pretty.str_of (Thy_Output.pretty_text ctxt name)) ^ "}")

            #> space_implode "\\par\\smallskip%\n"

            #> enclose "\\isa{" "}")));

(* Isabelle/Isar entities (with index) *)

local

fun no_check (_: Proof.context) (name, _: Position.T) = name;

fun check_keyword ctxt (name, pos) =

  if Keyword.is_keyword (Thy_Header.get_keywords' ctxt) name then name

  else error ("Bad outer syntax keyword " ^ quote name ^ Position.here pos);

fun check_system_option ctxt (name, pos) =

  (Context_Position.report ctxt pos (Options.default_markup (name, pos)); true)

    handle ERROR _ => false;

fun check_tool ctxt (name, pos) =

  let

    fun tool dir =

      let val path = Path.append dir (Path.basic name)

      in if File.exists path then SOME path else NONE end;

  in

    (case get_first tool (Path.split (getenv "ISABELLE_TOOLS")) of

      NONE => false

    | SOME path => (Context_Position.report ctxt pos (Markup.path (Path.implode path)); true))

  end;

val arg = enclose "{" "}" o clean_string;

fun entity check markup binding index =

  Thy_Output.antiquotation

    (binding |> Binding.map_name (fn name => name ^

      (case index of NONE => "" | SOME true => "_def" | SOME false => "_ref")))

    (Scan.lift (Scan.optional (Args.parens Args.name) "" -- Parse.position Args.name))

    (fn {context = ctxt, ...} => fn (logic, (name, pos)) =>

      let

        val kind = translate (fn "_" => " " | c => c) (Binding.name_of binding);

        val hyper_name =

          "{" ^ Long_Name.append kind (Long_Name.append logic (clean_name name)) ^ "}";

        val hyper =

          enclose ("\\hyperlink" ^ hyper_name ^ "{") "}" #>

          index = SOME true ? enclose ("\\hypertarget" ^ hyper_name ^ "{") "}";

        val idx =

          (case index of

            NONE => ""

          | SOME is_def =>

              "\\index" ^ (if is_def then "def" else "ref") ^ arg logic ^ arg kind ^ arg name);

        val _ = check ctxt (name, pos);

      in

        idx ^

        (Output.output name

          |> (if markup = "" then I else enclose ("\\" ^ markup ^ "{") "}")

          |> hyper o enclose "\\mbox{\\isa{" "}}")

      end);

fun entity_antiqs check markup kind =

  entity check markup kind NONE #>

  entity check markup kind (SOME true) #>

  entity check markup kind (SOME false);

in

val _ =

  Theory.setup

   (entity_antiqs no_check "" @{binding syntax} #>

    entity_antiqs Outer_Syntax.check_command "isacommand" @{binding command} #>

    entity_antiqs check_keyword "isakeyword" @{binding keyword} #>

    entity_antiqs check_keyword "isakeyword" @{binding element} #>

    entity_antiqs Method.check_name "" @{binding method} #>

    entity_antiqs Attrib.check_name "" @{binding attribute} #>

    entity_antiqs no_check "" @{binding fact} #>

    entity_antiqs no_check "" @{binding variable} #>

    entity_antiqs no_check "" @{binding case} #>

    entity_antiqs Thy_Output.check_command "" @{binding antiquotation} #>

    entity_antiqs Thy_Output.check_option "" @{binding antiquotation_option} #>

    entity_antiqs no_check "isasystem" @{binding setting} #>

    entity_antiqs check_system_option "isasystem" @{binding system_option} #>

    entity_antiqs no_check "" @{binding inference} #>

    entity_antiqs no_check "isasystem" @{binding executable} #>

    entity_antiqs check_tool "isatool" @{binding tool} #>

    entity_antiqs ML_Context.check_antiquotation "" @{binding ML_antiquotation} #>

    entity_antiqs (K JEdit.check_action) "isasystem" @{binding action});

end;

end;