clarified modules;
authorwenzelm
Wed, 20 Oct 2021 16:45:10 +0200
changeset 74559 9189d949abb9
parent 74558 44dc1661a5cb
child 74560 5c8177fd1295
clarified modules;
src/Pure/Isar/locale.ML
src/Pure/Isar/method.ML
src/Pure/ML/ml_antiquotations.ML
src/Pure/ML/ml_antiquotations1.ML
src/Pure/ML/ml_antiquotations2.ML
src/Pure/ROOT.ML
--- a/src/Pure/Isar/locale.ML	Wed Oct 20 16:36:49 2021 +0200
+++ b/src/Pure/Isar/locale.ML	Wed Oct 20 16:45:10 2021 +0200
@@ -186,6 +186,11 @@
 val intern = Name_Space.intern o locale_space;
 fun check thy = #1 o Name_Space.check (Context.Theory thy) (Locales.get thy);
 
+val _ = Theory.setup
+ (ML_Antiquotation.inline_embedded \<^binding>\<open>locale\<close>
+   (Args.theory -- Scan.lift Args.embedded_position >>
+      (ML_Syntax.print_string o uncurry check)));
+
 fun extern thy = Name_Space.extern (Proof_Context.init_global thy) (locale_space thy);
 
 fun markup_extern ctxt =
--- a/src/Pure/Isar/method.ML	Wed Oct 20 16:36:49 2021 +0200
+++ b/src/Pure/Isar/method.ML	Wed Oct 20 16:45:10 2021 +0200
@@ -426,6 +426,11 @@
   | checked_text (Basic _) = true
   | checked_text (Combinator (_, _, body)) = forall checked_text body;
 
+val _ = Theory.setup
+ (ML_Antiquotation.inline_embedded \<^binding>\<open>method\<close>
+    (Args.context -- Scan.lift Args.embedded_position >>
+      (ML_Syntax.print_string o uncurry check_name)));
+
 
 (* method setup *)
 
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/Pure/ML/ml_antiquotations.ML	Wed Oct 20 16:45:10 2021 +0200
@@ -0,0 +1,494 @@
+(*  Title:      Pure/ML/ml_antiquotations.ML
+    Author:     Makarius
+
+Miscellaneous ML antiquotations.
+*)
+
+signature ML_ANTIQUOTATIONS =
+sig
+  val make_judgment: Proof.context -> term -> term
+  val dest_judgment: Proof.context -> term -> term
+end;
+
+structure ML_Antiquotations: ML_ANTIQUOTATIONS =
+struct
+
+(* ML support *)
+
+val _ = Theory.setup
+ (ML_Antiquotation.inline \<^binding>\<open>undefined\<close>
+    (Scan.succeed "(raise General.Match)") #>
+
+  ML_Antiquotation.inline \<^binding>\<open>assert\<close>
+    (Scan.succeed "(fn b => if b then () else raise General.Fail \"Assertion failed\")") #>
+
+  ML_Antiquotation.declaration_embedded \<^binding>\<open>print\<close>
+    (Scan.lift (Scan.optional Args.embedded "Output.writeln"))
+      (fn src => fn output => fn ctxt =>
+        let
+          val struct_name = ML_Context.struct_name ctxt;
+          val (_, pos) = Token.name_of_src src;
+          val (a, ctxt') = ML_Context.variant "output" ctxt;
+          val env =
+            "val " ^ a ^ ": string -> unit =\n\
+            \  (" ^ output ^ ") o (fn s => s ^ Position.here (" ^
+            ML_Syntax.print_position pos ^ "));\n";
+          val body =
+            "(fn x => (" ^ struct_name ^ "." ^ a ^ " (" ^ ML_Pretty.make_string_fn ^ " x); x))";
+        in (K (env, body), ctxt') end) #>
+
+  ML_Antiquotation.value \<^binding>\<open>rat\<close>
+    (Scan.lift (Scan.optional (Args.$$$ "~" >> K ~1) 1 -- Parse.nat --
+      Scan.optional (Args.$$$ "/" |-- Parse.nat) 1) >> (fn ((sign, a), b) =>
+        "Rat.make " ^ ML_Syntax.print_pair ML_Syntax.print_int ML_Syntax.print_int (sign * a, b))) #>
+
+  ML_Antiquotation.conditional \<^binding>\<open>if_linux\<close> (fn _ => ML_System.platform_is_linux) #>
+  ML_Antiquotation.conditional \<^binding>\<open>if_macos\<close> (fn _ => ML_System.platform_is_macos) #>
+  ML_Antiquotation.conditional \<^binding>\<open>if_windows\<close> (fn _ => ML_System.platform_is_windows) #>
+  ML_Antiquotation.conditional \<^binding>\<open>if_unix\<close> (fn _ => ML_System.platform_is_unix));
+
+
+(* formal entities *)
+
+val _ = Theory.setup
+ (ML_Antiquotation.value_embedded \<^binding>\<open>system_option\<close>
+    (Args.context -- Scan.lift Args.embedded_position >> (fn (ctxt, (name, pos)) =>
+      (Completion.check_option (Options.default ()) ctxt (name, pos) |> ML_Syntax.print_string))) #>
+
+  ML_Antiquotation.value_embedded \<^binding>\<open>theory\<close>
+    (Args.context -- Scan.lift Args.embedded_position >> (fn (ctxt, (name, pos)) =>
+      (Theory.check {long = false} ctxt (name, pos);
+       "Context.get_theory {long = false} (Proof_Context.theory_of ML_context) " ^
+        ML_Syntax.print_string name))
+    || Scan.succeed "Proof_Context.theory_of ML_context") #>
+
+  ML_Antiquotation.value_embedded \<^binding>\<open>theory_context\<close>
+    (Args.context -- Scan.lift Args.embedded_position >> (fn (ctxt, (name, pos)) =>
+      (Theory.check {long = false} ctxt (name, pos);
+       "Proof_Context.get_global (Proof_Context.theory_of ML_context) " ^
+        ML_Syntax.print_string name))) #>
+
+  ML_Antiquotation.inline \<^binding>\<open>context\<close>
+    (Args.context >> (fn ctxt => ML_Context.struct_name ctxt ^ ".ML_context")) #>
+
+  ML_Antiquotation.inline_embedded \<^binding>\<open>typ\<close>
+    (Args.typ >> (ML_Syntax.atomic o ML_Syntax.print_typ)) #>
+
+  ML_Antiquotation.inline_embedded \<^binding>\<open>term\<close>
+    (Args.term >> (ML_Syntax.atomic o ML_Syntax.print_term)) #>
+
+  ML_Antiquotation.inline_embedded \<^binding>\<open>prop\<close>
+    (Args.prop >> (ML_Syntax.atomic o ML_Syntax.print_term)) #>
+
+  ML_Antiquotation.value_embedded \<^binding>\<open>ctyp\<close> (Args.typ >> (fn T =>
+    "Thm.ctyp_of ML_context " ^ ML_Syntax.atomic (ML_Syntax.print_typ T))) #>
+
+  ML_Antiquotation.value_embedded \<^binding>\<open>cterm\<close> (Args.term >> (fn t =>
+    "Thm.cterm_of ML_context " ^ ML_Syntax.atomic (ML_Syntax.print_term t))) #>
+
+  ML_Antiquotation.value_embedded \<^binding>\<open>cprop\<close> (Args.prop >> (fn t =>
+    "Thm.cterm_of ML_context " ^ ML_Syntax.atomic (ML_Syntax.print_term t))) #>
+
+  ML_Antiquotation.inline_embedded \<^binding>\<open>oracle_name\<close>
+    (Args.context -- Scan.lift Args.embedded_position >> (fn (ctxt, (name, pos)) =>
+      ML_Syntax.print_string (Thm.check_oracle ctxt (name, pos)))));
+
+
+(* schematic variables *)
+
+val schematic_input =
+  Args.context -- Scan.lift Args.embedded_input >> (fn (ctxt, src) =>
+    (Proof_Context.set_mode Proof_Context.mode_schematic ctxt,
+      (Syntax.implode_input src, Input.pos_of src)));
+
+val _ = Theory.setup
+  (ML_Antiquotation.inline_embedded \<^binding>\<open>tvar\<close>
+    (schematic_input >> (fn (ctxt, (s, pos)) =>
+      (case Syntax.read_typ ctxt s of
+        TVar v => ML_Syntax.print_pair ML_Syntax.print_indexname ML_Syntax.print_sort v
+      | _ => error ("Schematic type variable expected" ^ Position.here pos)))) #>
+   ML_Antiquotation.inline_embedded \<^binding>\<open>var\<close>
+    (schematic_input >> (fn (ctxt, (s, pos)) =>
+      (case Syntax.read_term ctxt s of
+        Var v => ML_Syntax.print_pair ML_Syntax.print_indexname ML_Syntax.print_typ v
+      | _ => error ("Schematic variable expected" ^ Position.here pos)))));
+
+
+(* type classes *)
+
+fun class syn = Args.context -- Scan.lift Args.embedded_inner_syntax >> (fn (ctxt, s) =>
+  Proof_Context.read_class ctxt s
+  |> syn ? Lexicon.mark_class
+  |> ML_Syntax.print_string);
+
+val _ = Theory.setup
+ (ML_Antiquotation.inline_embedded \<^binding>\<open>class\<close> (class false) #>
+  ML_Antiquotation.inline_embedded \<^binding>\<open>class_syntax\<close> (class true) #>
+
+  ML_Antiquotation.inline_embedded \<^binding>\<open>sort\<close>
+    (Args.context -- Scan.lift Args.embedded_inner_syntax >> (fn (ctxt, s) =>
+      ML_Syntax.atomic (ML_Syntax.print_sort (Syntax.read_sort ctxt s)))));
+
+
+(* type constructors *)
+
+fun type_name kind check = Args.context -- Scan.lift Args.embedded_token
+  >> (fn (ctxt, tok) =>
+    let
+      val s = Token.inner_syntax_of tok;
+      val (_, pos) = Input.source_content (Token.input_of tok);
+      val Type (c, _) = Proof_Context.read_type_name {proper = true, strict = false} ctxt s;
+      val decl = Type.the_decl (Proof_Context.tsig_of ctxt) (c, pos);
+      val res =
+        (case try check (c, decl) of
+          SOME res => res
+        | NONE => error ("Not a " ^ kind ^ ": " ^ quote c ^ Position.here pos));
+    in ML_Syntax.print_string res end);
+
+val _ = Theory.setup
+ (ML_Antiquotation.inline_embedded \<^binding>\<open>type_name\<close>
+    (type_name "logical type" (fn (c, Type.LogicalType _) => c)) #>
+  ML_Antiquotation.inline_embedded \<^binding>\<open>type_abbrev\<close>
+    (type_name "type abbreviation" (fn (c, Type.Abbreviation _) => c)) #>
+  ML_Antiquotation.inline_embedded \<^binding>\<open>nonterminal\<close>
+    (type_name "nonterminal" (fn (c, Type.Nonterminal) => c)) #>
+  ML_Antiquotation.inline_embedded \<^binding>\<open>type_syntax\<close>
+    (type_name "type" (fn (c, _) => Lexicon.mark_type c)));
+
+
+(* constants *)
+
+fun const_name check = Args.context -- Scan.lift Args.embedded_token
+  >> (fn (ctxt, tok) =>
+    let
+      val s = Token.inner_syntax_of tok;
+      val (_, pos) = Input.source_content (Token.input_of tok);
+      val Const (c, _) = Proof_Context.read_const {proper = true, strict = false} ctxt s;
+      val res = check (Proof_Context.consts_of ctxt, c)
+        handle TYPE (msg, _, _) => error (msg ^ Position.here pos);
+    in ML_Syntax.print_string res end);
+
+val _ = Theory.setup
+ (ML_Antiquotation.inline_embedded \<^binding>\<open>const_name\<close>
+    (const_name (fn (consts, c) => (Consts.the_const consts c; c))) #>
+  ML_Antiquotation.inline_embedded \<^binding>\<open>const_abbrev\<close>
+    (const_name (fn (consts, c) => (Consts.the_abbreviation consts c; c))) #>
+  ML_Antiquotation.inline_embedded \<^binding>\<open>const_syntax\<close>
+    (const_name (fn (_, c) => Lexicon.mark_const c)) #>
+
+  ML_Antiquotation.inline_embedded \<^binding>\<open>syntax_const\<close>
+    (Args.context -- Scan.lift Args.embedded_position >> (fn (ctxt, arg) =>
+      ML_Syntax.print_string (Proof_Context.check_syntax_const ctxt arg))) #>
+
+  ML_Antiquotation.inline_embedded \<^binding>\<open>const\<close>
+    (Args.context -- Scan.lift (Parse.position Args.embedded_inner_syntax) -- Scan.optional
+        (Scan.lift (Args.$$$ "(") |-- Parse.enum1' "," Args.typ --| Scan.lift (Args.$$$ ")")) []
+      >> (fn ((ctxt, (raw_c, pos)), Ts) =>
+        let
+          val Const (c, _) =
+            Proof_Context.read_const {proper = true, strict = true} ctxt raw_c;
+          val consts = Proof_Context.consts_of ctxt;
+          val n = length (Consts.typargs consts (c, Consts.type_scheme consts c));
+          val _ = length Ts <> n andalso
+            error ("Constant requires " ^ string_of_int n ^ " type argument(s): " ^
+              quote c ^ enclose "(" ")" (commas (replicate n "_")) ^ Position.here pos);
+          val const = Const (c, Consts.instance consts (c, Ts));
+        in ML_Syntax.atomic (ML_Syntax.print_term const) end)));
+
+
+(* object-logic judgment *)
+
+fun make_judgment ctxt =
+  let val const = Object_Logic.judgment_const ctxt
+  in fn t => Const const $ t end;
+
+fun dest_judgment ctxt =
+  let
+    val is_judgment = Object_Logic.is_judgment ctxt;
+    val drop_judgment = Object_Logic.drop_judgment ctxt;
+  in
+    fn t =>
+      if is_judgment t then drop_judgment t
+      else raise TERM ("dest_judgment", [t])
+  end;
+
+val _ = Theory.setup
+ (ML_Antiquotation.value \<^binding>\<open>make_judgment\<close>
+   (Scan.succeed "ML_Antiquotations.make_judgment ML_context") #>
+  ML_Antiquotation.value \<^binding>\<open>dest_judgment\<close>
+   (Scan.succeed "ML_Antiquotations.dest_judgment ML_context"));
+
+
+(* type/term constructors *)
+
+fun read_embedded ctxt keywords src parse =
+  let
+    val input = #1 (Token.syntax (Scan.lift Args.embedded_input) src ctxt);
+    val toks = input
+      |> Input.source_explode
+      |> Token.tokenize keywords {strict = true}
+      |> filter Token.is_proper;
+    val _ = Context_Position.reports_text ctxt (maps (Token.reports keywords) toks);
+  in
+    (case Scan.read Token.stopper parse toks of
+      SOME res => res
+    | NONE => error ("Bad input" ^ Position.here (Input.pos_of input)))
+  end;
+
+val parse_embedded_ml =
+  Parse.embedded_input >> ML_Lex.read_source ||
+  Parse.control >> (ML_Lex.read_symbols o Antiquote.control_symbols);
+
+val parse_embedded_ml_underscore =
+  Parse.input Parse.underscore >> ML_Lex.read_source || parse_embedded_ml;
+
+fun ml_args ctxt args =
+  let
+    val (decls, ctxt') = fold_map (ML_Context.expand_antiquotes) args ctxt;
+    fun decl' ctxt'' = map (fn decl => decl ctxt'') decls;
+  in (decl', ctxt') end
+
+local
+
+val keywords = Keyword.add_minor_keywords ["for", "=>"] Keyword.empty_keywords;
+
+val parse_name = Parse.input Parse.name;
+
+val parse_args = Scan.repeat parse_embedded_ml_underscore;
+val parse_for_args = Scan.optional (Parse.$$$ "for" |-- Parse.!!! parse_args) [];
+
+fun parse_body b =
+  if b then Parse.$$$ "=>" |-- Parse.!!! Parse.embedded_input >> (ML_Lex.read_source #> single)
+  else Scan.succeed [];
+
+fun is_dummy [Antiquote.Text tok] = ML_Lex.content_of tok = "_"
+  | is_dummy _ = false;
+
+val ml = ML_Lex.tokenize_no_range;
+val ml_range = ML_Lex.tokenize_range;
+val ml_dummy = ml "_";
+fun ml_enclose range x = ml "(" @ x @ ml_range range ")";
+fun ml_parens x = ml "(" @ x @ ml ")";
+fun ml_bracks x = ml "[" @ x @ ml "]";
+fun ml_commas xs = flat (separate (ml ", ") xs);
+val ml_list = ml_bracks o ml_commas;
+val ml_string = ml o ML_Syntax.print_string;
+fun ml_pair (x, y) = ml_parens (ml_commas [x, y]);
+
+fun type_antiquotation binding {function} =
+  ML_Context.add_antiquotation binding true
+    (fn range => fn src => fn ctxt =>
+      let
+        val ((s, type_args), fn_body) =
+          read_embedded ctxt keywords src (parse_name -- parse_args -- parse_body function);
+        val pos = Input.pos_of s;
+
+        val Type (c, Ts) =
+          Proof_Context.read_type_name {proper = true, strict = true} ctxt
+            (Syntax.implode_input s);
+        val n = length Ts;
+        val _ =
+          length type_args = n orelse
+            error ("Type constructor " ^ quote (Proof_Context.markup_type ctxt c) ^
+              " takes " ^ string_of_int n ^ " argument(s)" ^ Position.here pos);
+
+        val (decls1, ctxt1) = ml_args ctxt type_args;
+        val (decls2, ctxt2) = ml_args ctxt1 fn_body;
+        fun decl' ctxt' =
+          let
+            val (ml_args_env, ml_args_body) = split_list (decls1 ctxt');
+            val (ml_fn_env, ml_fn_body) = split_list (decls2 ctxt');
+            val ml1 =
+              ml_enclose range (ml "Term.Type " @ ml_pair (ml_string c, ml_list ml_args_body));
+            val ml2 =
+              if function then
+                ml_enclose range
+                 (ml_range range "fn " @ ml1 @ ml "=> " @ flat ml_fn_body @
+                  ml "| T => " @ ml_range range "raise" @
+                  ml " Term.TYPE (" @ ml_string ("Type_fn " ^ quote c) @ ml ", [T], [])")
+              else ml1;
+          in (flat (ml_args_env @ ml_fn_env), ml2) end;
+      in (decl', ctxt2) end);
+
+fun const_antiquotation binding {pattern, function} =
+  ML_Context.add_antiquotation binding true
+    (fn range => fn src => fn ctxt =>
+      let
+        val (((s, type_args), term_args), fn_body) =
+          read_embedded ctxt keywords src
+            (parse_name -- parse_args -- parse_for_args -- parse_body function);
+
+        val Const (c, T) =
+          Proof_Context.read_const {proper = true, strict = true} ctxt
+            (Syntax.implode_input s);
+
+        val consts = Proof_Context.consts_of ctxt;
+        val type_paths = Consts.type_arguments consts c;
+        val type_params = map Term.dest_TVar (Consts.typargs consts (c, T));
+
+        val n = length type_params;
+        val m = length (Term.binder_types T);
+
+        fun err msg =
+          error ("Constant " ^ quote (Proof_Context.markup_const ctxt c) ^ msg ^
+            Position.here (Input.pos_of s));
+        val _ =
+          length type_args <> n andalso err (" takes " ^ string_of_int n ^ " type argument(s)");
+        val _ =
+          length term_args > m andalso Term.is_Type (Term.body_type T) andalso
+            err (" cannot have more than " ^ string_of_int m ^ " argument(s)");
+
+        val (decls1, ctxt1) = ml_args ctxt type_args;
+        val (decls2, ctxt2) = ml_args ctxt1 term_args;
+        val (decls3, ctxt3) = ml_args ctxt2 fn_body;
+        fun decl' ctxt' =
+          let
+            val (ml_args_env1, ml_args_body1) = split_list (decls1 ctxt');
+            val (ml_args_env2, ml_args_body2) = split_list (decls2 ctxt');
+            val (ml_fn_env, ml_fn_body) = split_list (decls3 ctxt');
+
+            val relevant = map is_dummy type_args ~~ type_paths;
+            fun relevant_path is =
+              not pattern orelse
+                let val p = rev is
+                in relevant |> exists (fn (u, q) => not u andalso is_prefix (op =) p q) end;
+
+            val ml_typarg = the o AList.lookup (op =) (type_params ~~ ml_args_body1);
+            fun ml_typ is (Type (d, Us)) =
+                  if relevant_path is then
+                    ml "Term.Type " @
+                    ml_pair (ml_string d, ml_list (map_index (fn (i, U) => ml_typ (i :: is) U) Us))
+                  else ml_dummy
+              | ml_typ is (TVar arg) = if relevant_path is then ml_typarg arg else ml_dummy
+              | ml_typ _ (TFree _) = raise Match;
+
+            fun ml_app [] = ml "Term.Const " @ ml_pair (ml_string c, ml_typ [] T)
+              | ml_app (u :: us) = ml "Term.$ " @ ml_pair (ml_app us, u);
+
+            val ml_env = flat (ml_args_env1 @ ml_args_env2 @ ml_fn_env);
+            val ml1 = ml_enclose range (ml_app (rev ml_args_body2));
+            val ml2 =
+              if function then
+                ml_enclose range
+                 (ml_range range "fn " @ ml1 @ ml "=> " @ flat ml_fn_body @
+                  ml "| t => " @ ml_range range "raise" @
+                  ml " Term.TERM (" @ ml_string ("Const_fn " ^ quote c) @ ml ", [t])")
+              else ml1;
+          in (ml_env, ml2) end;
+      in (decl', ctxt3) end);
+
+val _ = Theory.setup
+ (type_antiquotation \<^binding>\<open>Type\<close> {function = false} #>
+  type_antiquotation \<^binding>\<open>Type_fn\<close> {function = true} #>
+  const_antiquotation \<^binding>\<open>Const\<close> {pattern = false, function = false} #>
+  const_antiquotation \<^binding>\<open>Const_\<close> {pattern = true, function = false} #>
+  const_antiquotation \<^binding>\<open>Const_fn\<close> {pattern = true, function = true});
+
+in end;
+
+
+(* special forms *)
+
+val _ = Theory.setup
+ (ML_Antiquotation.special_form \<^binding>\<open>try\<close> "() |> Basics.try" #>
+  ML_Antiquotation.special_form \<^binding>\<open>can\<close> "() |> Basics.can");
+
+
+(* basic combinators *)
+
+local
+
+val parameter = Parse.position Parse.nat >> (fn (n, pos) =>
+  if n > 1 then n else error ("Bad parameter: " ^ string_of_int n ^ Position.here pos));
+
+fun indices n = map string_of_int (1 upto n);
+
+fun empty n = replicate_string n " []";
+fun dummy n = replicate_string n " _";
+fun vars x n = implode (map (fn a => " " ^ x ^ a) (indices n));
+fun cons n = implode (map (fn a => " (x" ^ a ^ " :: xs" ^ a ^ ")") (indices n));
+
+val tuple = enclose "(" ")" o commas;
+fun tuple_empty n = tuple (replicate n "[]");
+fun tuple_vars x n = tuple (map (fn a => x ^ a) (indices n));
+fun tuple_cons n = "(" ^ tuple_vars "x" n ^ " :: xs)"
+fun cons_tuple n = tuple (map (fn a => "x" ^ a ^ " :: xs" ^ a) (indices n));
+
+in
+
+val _ = Theory.setup
+ (ML_Antiquotation.value \<^binding>\<open>map\<close>
+    (Scan.lift parameter >> (fn n =>
+      "fn f =>\n\
+      \  let\n\
+      \    fun map _" ^ empty n ^ " = []\n\
+      \      | map f" ^ cons n ^ " = f" ^ vars "x" n ^ " :: map f" ^ vars "xs" n ^ "\n\
+      \      | map _" ^  dummy n ^ " = raise ListPair.UnequalLengths\n" ^
+      "  in map f end")) #>
+  ML_Antiquotation.value \<^binding>\<open>fold\<close>
+    (Scan.lift parameter >> (fn n =>
+      "fn f =>\n\
+      \  let\n\
+      \    fun fold _" ^ empty n ^ " a = a\n\
+      \      | fold f" ^ cons n ^ " a = fold f" ^ vars "xs" n ^ " (f" ^ vars "x" n ^ " a)\n\
+      \      | fold _" ^  dummy n ^ " _ = raise ListPair.UnequalLengths\n" ^
+      "  in fold f end")) #>
+  ML_Antiquotation.value \<^binding>\<open>fold_map\<close>
+    (Scan.lift parameter >> (fn n =>
+      "fn f =>\n\
+      \  let\n\
+      \    fun fold_map _" ^ empty n ^ " a = ([], a)\n\
+      \      | fold_map f" ^ cons n ^ " a =\n\
+      \          let\n\
+      \            val (x, a') = f" ^ vars "x" n ^ " a\n\
+      \            val (xs, a'') = fold_map f" ^ vars "xs" n ^ " a'\n\
+      \          in (x :: xs, a'') end\n\
+      \      | fold_map _" ^  dummy n ^ " _ = raise ListPair.UnequalLengths\n" ^
+      "  in fold_map f end")) #>
+  ML_Antiquotation.value \<^binding>\<open>split_list\<close>
+    (Scan.lift parameter >> (fn n =>
+      "fn list =>\n\
+      \  let\n\
+      \    fun split_list [] =" ^ tuple_empty n ^ "\n\
+      \      | split_list" ^ tuple_cons n ^ " =\n\
+      \          let val" ^ tuple_vars "xs" n ^ " = split_list xs\n\
+      \          in " ^ cons_tuple n ^ "end\n\
+      \  in split_list list end")) #>
+  ML_Antiquotation.value \<^binding>\<open>apply\<close>
+    (Scan.lift (parameter -- Scan.option (Args.parens (Parse.position Parse.nat))) >>
+      (fn (n, opt_index) =>
+        let
+          val cond =
+            (case opt_index of
+              NONE => K true
+            | SOME (index, index_pos) =>
+                if 1 <= index andalso index <= n then equal (string_of_int index)
+                else error ("Bad index: " ^ string_of_int index ^ Position.here index_pos));
+        in
+          "fn f => fn " ^ tuple_vars "x" n ^ " => " ^
+            tuple (map (fn a => (if cond a then "f x" else "x") ^ a) (indices n))
+        end)));
+
+end;
+
+
+(* outer syntax *)
+
+val _ = Theory.setup
+ (ML_Antiquotation.value_embedded \<^binding>\<open>keyword\<close>
+    (Args.context --
+      Scan.lift (Parse.embedded_position || Parse.position (Parse.keyword_with (K true)))
+      >> (fn (ctxt, (name, pos)) =>
+        if Keyword.is_keyword (Thy_Header.get_keywords' ctxt) name then
+          (Context_Position.report ctxt pos (Token.keyword_markup (true, Markup.keyword2) name);
+           "Parse.$$$ " ^ ML_Syntax.print_string name)
+        else error ("Bad outer syntax keyword " ^ quote name ^ Position.here pos))) #>
+  ML_Antiquotation.value_embedded \<^binding>\<open>command_keyword\<close>
+    (Args.context -- Scan.lift Parse.embedded_position >> (fn (ctxt, (name, pos)) =>
+      (case Keyword.command_markup (Thy_Header.get_keywords' ctxt) name of
+        SOME markup =>
+         (Context_Position.reports ctxt [(pos, markup), (pos, Markup.keyword1)];
+          ML_Syntax.print_pair ML_Syntax.print_string ML_Syntax.print_position (name, pos))
+      | NONE => error ("Bad outer syntax command " ^ quote name ^ Position.here pos)))));
+
+end;
--- a/src/Pure/ML/ml_antiquotations1.ML	Wed Oct 20 16:36:49 2021 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,494 +0,0 @@
-(*  Title:      Pure/ML/ml_antiquotations1.ML
-    Author:     Makarius
-
-Miscellaneous ML antiquotations: part 1.
-*)
-
-signature ML_ANTIQUOTATIONS1 =
-sig
-  val make_judgment: Proof.context -> term -> term
-  val dest_judgment: Proof.context -> term -> term
-end;
-
-structure ML_Antiquotations1: ML_ANTIQUOTATIONS1 =
-struct
-
-(* ML support *)
-
-val _ = Theory.setup
- (ML_Antiquotation.inline \<^binding>\<open>undefined\<close>
-    (Scan.succeed "(raise General.Match)") #>
-
-  ML_Antiquotation.inline \<^binding>\<open>assert\<close>
-    (Scan.succeed "(fn b => if b then () else raise General.Fail \"Assertion failed\")") #>
-
-  ML_Antiquotation.declaration_embedded \<^binding>\<open>print\<close>
-    (Scan.lift (Scan.optional Args.embedded "Output.writeln"))
-      (fn src => fn output => fn ctxt =>
-        let
-          val struct_name = ML_Context.struct_name ctxt;
-          val (_, pos) = Token.name_of_src src;
-          val (a, ctxt') = ML_Context.variant "output" ctxt;
-          val env =
-            "val " ^ a ^ ": string -> unit =\n\
-            \  (" ^ output ^ ") o (fn s => s ^ Position.here (" ^
-            ML_Syntax.print_position pos ^ "));\n";
-          val body =
-            "(fn x => (" ^ struct_name ^ "." ^ a ^ " (" ^ ML_Pretty.make_string_fn ^ " x); x))";
-        in (K (env, body), ctxt') end) #>
-
-  ML_Antiquotation.value \<^binding>\<open>rat\<close>
-    (Scan.lift (Scan.optional (Args.$$$ "~" >> K ~1) 1 -- Parse.nat --
-      Scan.optional (Args.$$$ "/" |-- Parse.nat) 1) >> (fn ((sign, a), b) =>
-        "Rat.make " ^ ML_Syntax.print_pair ML_Syntax.print_int ML_Syntax.print_int (sign * a, b))) #>
-
-  ML_Antiquotation.conditional \<^binding>\<open>if_linux\<close> (fn _ => ML_System.platform_is_linux) #>
-  ML_Antiquotation.conditional \<^binding>\<open>if_macos\<close> (fn _ => ML_System.platform_is_macos) #>
-  ML_Antiquotation.conditional \<^binding>\<open>if_windows\<close> (fn _ => ML_System.platform_is_windows) #>
-  ML_Antiquotation.conditional \<^binding>\<open>if_unix\<close> (fn _ => ML_System.platform_is_unix));
-
-
-(* formal entities *)
-
-val _ = Theory.setup
- (ML_Antiquotation.value_embedded \<^binding>\<open>system_option\<close>
-    (Args.context -- Scan.lift Args.embedded_position >> (fn (ctxt, (name, pos)) =>
-      (Completion.check_option (Options.default ()) ctxt (name, pos) |> ML_Syntax.print_string))) #>
-
-  ML_Antiquotation.value_embedded \<^binding>\<open>theory\<close>
-    (Args.context -- Scan.lift Args.embedded_position >> (fn (ctxt, (name, pos)) =>
-      (Theory.check {long = false} ctxt (name, pos);
-       "Context.get_theory {long = false} (Proof_Context.theory_of ML_context) " ^
-        ML_Syntax.print_string name))
-    || Scan.succeed "Proof_Context.theory_of ML_context") #>
-
-  ML_Antiquotation.value_embedded \<^binding>\<open>theory_context\<close>
-    (Args.context -- Scan.lift Args.embedded_position >> (fn (ctxt, (name, pos)) =>
-      (Theory.check {long = false} ctxt (name, pos);
-       "Proof_Context.get_global (Proof_Context.theory_of ML_context) " ^
-        ML_Syntax.print_string name))) #>
-
-  ML_Antiquotation.inline \<^binding>\<open>context\<close>
-    (Args.context >> (fn ctxt => ML_Context.struct_name ctxt ^ ".ML_context")) #>
-
-  ML_Antiquotation.inline_embedded \<^binding>\<open>typ\<close>
-    (Args.typ >> (ML_Syntax.atomic o ML_Syntax.print_typ)) #>
-
-  ML_Antiquotation.inline_embedded \<^binding>\<open>term\<close>
-    (Args.term >> (ML_Syntax.atomic o ML_Syntax.print_term)) #>
-
-  ML_Antiquotation.inline_embedded \<^binding>\<open>prop\<close>
-    (Args.prop >> (ML_Syntax.atomic o ML_Syntax.print_term)) #>
-
-  ML_Antiquotation.value_embedded \<^binding>\<open>ctyp\<close> (Args.typ >> (fn T =>
-    "Thm.ctyp_of ML_context " ^ ML_Syntax.atomic (ML_Syntax.print_typ T))) #>
-
-  ML_Antiquotation.value_embedded \<^binding>\<open>cterm\<close> (Args.term >> (fn t =>
-    "Thm.cterm_of ML_context " ^ ML_Syntax.atomic (ML_Syntax.print_term t))) #>
-
-  ML_Antiquotation.value_embedded \<^binding>\<open>cprop\<close> (Args.prop >> (fn t =>
-    "Thm.cterm_of ML_context " ^ ML_Syntax.atomic (ML_Syntax.print_term t))) #>
-
-  ML_Antiquotation.inline_embedded \<^binding>\<open>oracle_name\<close>
-    (Args.context -- Scan.lift Args.embedded_position >> (fn (ctxt, (name, pos)) =>
-      ML_Syntax.print_string (Thm.check_oracle ctxt (name, pos)))));
-
-
-(* schematic variables *)
-
-val schematic_input =
-  Args.context -- Scan.lift Args.embedded_input >> (fn (ctxt, src) =>
-    (Proof_Context.set_mode Proof_Context.mode_schematic ctxt,
-      (Syntax.implode_input src, Input.pos_of src)));
-
-val _ = Theory.setup
-  (ML_Antiquotation.inline_embedded \<^binding>\<open>tvar\<close>
-    (schematic_input >> (fn (ctxt, (s, pos)) =>
-      (case Syntax.read_typ ctxt s of
-        TVar v => ML_Syntax.print_pair ML_Syntax.print_indexname ML_Syntax.print_sort v
-      | _ => error ("Schematic type variable expected" ^ Position.here pos)))) #>
-   ML_Antiquotation.inline_embedded \<^binding>\<open>var\<close>
-    (schematic_input >> (fn (ctxt, (s, pos)) =>
-      (case Syntax.read_term ctxt s of
-        Var v => ML_Syntax.print_pair ML_Syntax.print_indexname ML_Syntax.print_typ v
-      | _ => error ("Schematic variable expected" ^ Position.here pos)))));
-
-
-(* type classes *)
-
-fun class syn = Args.context -- Scan.lift Args.embedded_inner_syntax >> (fn (ctxt, s) =>
-  Proof_Context.read_class ctxt s
-  |> syn ? Lexicon.mark_class
-  |> ML_Syntax.print_string);
-
-val _ = Theory.setup
- (ML_Antiquotation.inline_embedded \<^binding>\<open>class\<close> (class false) #>
-  ML_Antiquotation.inline_embedded \<^binding>\<open>class_syntax\<close> (class true) #>
-
-  ML_Antiquotation.inline_embedded \<^binding>\<open>sort\<close>
-    (Args.context -- Scan.lift Args.embedded_inner_syntax >> (fn (ctxt, s) =>
-      ML_Syntax.atomic (ML_Syntax.print_sort (Syntax.read_sort ctxt s)))));
-
-
-(* type constructors *)
-
-fun type_name kind check = Args.context -- Scan.lift Args.embedded_token
-  >> (fn (ctxt, tok) =>
-    let
-      val s = Token.inner_syntax_of tok;
-      val (_, pos) = Input.source_content (Token.input_of tok);
-      val Type (c, _) = Proof_Context.read_type_name {proper = true, strict = false} ctxt s;
-      val decl = Type.the_decl (Proof_Context.tsig_of ctxt) (c, pos);
-      val res =
-        (case try check (c, decl) of
-          SOME res => res
-        | NONE => error ("Not a " ^ kind ^ ": " ^ quote c ^ Position.here pos));
-    in ML_Syntax.print_string res end);
-
-val _ = Theory.setup
- (ML_Antiquotation.inline_embedded \<^binding>\<open>type_name\<close>
-    (type_name "logical type" (fn (c, Type.LogicalType _) => c)) #>
-  ML_Antiquotation.inline_embedded \<^binding>\<open>type_abbrev\<close>
-    (type_name "type abbreviation" (fn (c, Type.Abbreviation _) => c)) #>
-  ML_Antiquotation.inline_embedded \<^binding>\<open>nonterminal\<close>
-    (type_name "nonterminal" (fn (c, Type.Nonterminal) => c)) #>
-  ML_Antiquotation.inline_embedded \<^binding>\<open>type_syntax\<close>
-    (type_name "type" (fn (c, _) => Lexicon.mark_type c)));
-
-
-(* constants *)
-
-fun const_name check = Args.context -- Scan.lift Args.embedded_token
-  >> (fn (ctxt, tok) =>
-    let
-      val s = Token.inner_syntax_of tok;
-      val (_, pos) = Input.source_content (Token.input_of tok);
-      val Const (c, _) = Proof_Context.read_const {proper = true, strict = false} ctxt s;
-      val res = check (Proof_Context.consts_of ctxt, c)
-        handle TYPE (msg, _, _) => error (msg ^ Position.here pos);
-    in ML_Syntax.print_string res end);
-
-val _ = Theory.setup
- (ML_Antiquotation.inline_embedded \<^binding>\<open>const_name\<close>
-    (const_name (fn (consts, c) => (Consts.the_const consts c; c))) #>
-  ML_Antiquotation.inline_embedded \<^binding>\<open>const_abbrev\<close>
-    (const_name (fn (consts, c) => (Consts.the_abbreviation consts c; c))) #>
-  ML_Antiquotation.inline_embedded \<^binding>\<open>const_syntax\<close>
-    (const_name (fn (_, c) => Lexicon.mark_const c)) #>
-
-  ML_Antiquotation.inline_embedded \<^binding>\<open>syntax_const\<close>
-    (Args.context -- Scan.lift Args.embedded_position >> (fn (ctxt, arg) =>
-      ML_Syntax.print_string (Proof_Context.check_syntax_const ctxt arg))) #>
-
-  ML_Antiquotation.inline_embedded \<^binding>\<open>const\<close>
-    (Args.context -- Scan.lift (Parse.position Args.embedded_inner_syntax) -- Scan.optional
-        (Scan.lift (Args.$$$ "(") |-- Parse.enum1' "," Args.typ --| Scan.lift (Args.$$$ ")")) []
-      >> (fn ((ctxt, (raw_c, pos)), Ts) =>
-        let
-          val Const (c, _) =
-            Proof_Context.read_const {proper = true, strict = true} ctxt raw_c;
-          val consts = Proof_Context.consts_of ctxt;
-          val n = length (Consts.typargs consts (c, Consts.type_scheme consts c));
-          val _ = length Ts <> n andalso
-            error ("Constant requires " ^ string_of_int n ^ " type argument(s): " ^
-              quote c ^ enclose "(" ")" (commas (replicate n "_")) ^ Position.here pos);
-          val const = Const (c, Consts.instance consts (c, Ts));
-        in ML_Syntax.atomic (ML_Syntax.print_term const) end)));
-
-
-(* object-logic judgment *)
-
-fun make_judgment ctxt =
-  let val const = Object_Logic.judgment_const ctxt
-  in fn t => Const const $ t end;
-
-fun dest_judgment ctxt =
-  let
-    val is_judgment = Object_Logic.is_judgment ctxt;
-    val drop_judgment = Object_Logic.drop_judgment ctxt;
-  in
-    fn t =>
-      if is_judgment t then drop_judgment t
-      else raise TERM ("dest_judgment", [t])
-  end;
-
-val _ = Theory.setup
- (ML_Antiquotation.value \<^binding>\<open>make_judgment\<close>
-   (Scan.succeed "ML_Antiquotations1.make_judgment ML_context") #>
-  ML_Antiquotation.value \<^binding>\<open>dest_judgment\<close>
-   (Scan.succeed "ML_Antiquotations1.dest_judgment ML_context"));
-
-
-(* type/term constructors *)
-
-fun read_embedded ctxt keywords src parse =
-  let
-    val input = #1 (Token.syntax (Scan.lift Args.embedded_input) src ctxt);
-    val toks = input
-      |> Input.source_explode
-      |> Token.tokenize keywords {strict = true}
-      |> filter Token.is_proper;
-    val _ = Context_Position.reports_text ctxt (maps (Token.reports keywords) toks);
-  in
-    (case Scan.read Token.stopper parse toks of
-      SOME res => res
-    | NONE => error ("Bad input" ^ Position.here (Input.pos_of input)))
-  end;
-
-val parse_embedded_ml =
-  Parse.embedded_input >> ML_Lex.read_source ||
-  Parse.control >> (ML_Lex.read_symbols o Antiquote.control_symbols);
-
-val parse_embedded_ml_underscore =
-  Parse.input Parse.underscore >> ML_Lex.read_source || parse_embedded_ml;
-
-fun ml_args ctxt args =
-  let
-    val (decls, ctxt') = fold_map (ML_Context.expand_antiquotes) args ctxt;
-    fun decl' ctxt'' = map (fn decl => decl ctxt'') decls;
-  in (decl', ctxt') end
-
-local
-
-val keywords = Keyword.add_minor_keywords ["for", "=>"] Keyword.empty_keywords;
-
-val parse_name = Parse.input Parse.name;
-
-val parse_args = Scan.repeat parse_embedded_ml_underscore;
-val parse_for_args = Scan.optional (Parse.$$$ "for" |-- Parse.!!! parse_args) [];
-
-fun parse_body b =
-  if b then Parse.$$$ "=>" |-- Parse.!!! Parse.embedded_input >> (ML_Lex.read_source #> single)
-  else Scan.succeed [];
-
-fun is_dummy [Antiquote.Text tok] = ML_Lex.content_of tok = "_"
-  | is_dummy _ = false;
-
-val ml = ML_Lex.tokenize_no_range;
-val ml_range = ML_Lex.tokenize_range;
-val ml_dummy = ml "_";
-fun ml_enclose range x = ml "(" @ x @ ml_range range ")";
-fun ml_parens x = ml "(" @ x @ ml ")";
-fun ml_bracks x = ml "[" @ x @ ml "]";
-fun ml_commas xs = flat (separate (ml ", ") xs);
-val ml_list = ml_bracks o ml_commas;
-val ml_string = ml o ML_Syntax.print_string;
-fun ml_pair (x, y) = ml_parens (ml_commas [x, y]);
-
-fun type_antiquotation binding {function} =
-  ML_Context.add_antiquotation binding true
-    (fn range => fn src => fn ctxt =>
-      let
-        val ((s, type_args), fn_body) =
-          read_embedded ctxt keywords src (parse_name -- parse_args -- parse_body function);
-        val pos = Input.pos_of s;
-
-        val Type (c, Ts) =
-          Proof_Context.read_type_name {proper = true, strict = true} ctxt
-            (Syntax.implode_input s);
-        val n = length Ts;
-        val _ =
-          length type_args = n orelse
-            error ("Type constructor " ^ quote (Proof_Context.markup_type ctxt c) ^
-              " takes " ^ string_of_int n ^ " argument(s)" ^ Position.here pos);
-
-        val (decls1, ctxt1) = ml_args ctxt type_args;
-        val (decls2, ctxt2) = ml_args ctxt1 fn_body;
-        fun decl' ctxt' =
-          let
-            val (ml_args_env, ml_args_body) = split_list (decls1 ctxt');
-            val (ml_fn_env, ml_fn_body) = split_list (decls2 ctxt');
-            val ml1 =
-              ml_enclose range (ml "Term.Type " @ ml_pair (ml_string c, ml_list ml_args_body));
-            val ml2 =
-              if function then
-                ml_enclose range
-                 (ml_range range "fn " @ ml1 @ ml "=> " @ flat ml_fn_body @
-                  ml "| T => " @ ml_range range "raise" @
-                  ml " Term.TYPE (" @ ml_string ("Type_fn " ^ quote c) @ ml ", [T], [])")
-              else ml1;
-          in (flat (ml_args_env @ ml_fn_env), ml2) end;
-      in (decl', ctxt2) end);
-
-fun const_antiquotation binding {pattern, function} =
-  ML_Context.add_antiquotation binding true
-    (fn range => fn src => fn ctxt =>
-      let
-        val (((s, type_args), term_args), fn_body) =
-          read_embedded ctxt keywords src
-            (parse_name -- parse_args -- parse_for_args -- parse_body function);
-
-        val Const (c, T) =
-          Proof_Context.read_const {proper = true, strict = true} ctxt
-            (Syntax.implode_input s);
-
-        val consts = Proof_Context.consts_of ctxt;
-        val type_paths = Consts.type_arguments consts c;
-        val type_params = map Term.dest_TVar (Consts.typargs consts (c, T));
-
-        val n = length type_params;
-        val m = length (Term.binder_types T);
-
-        fun err msg =
-          error ("Constant " ^ quote (Proof_Context.markup_const ctxt c) ^ msg ^
-            Position.here (Input.pos_of s));
-        val _ =
-          length type_args <> n andalso err (" takes " ^ string_of_int n ^ " type argument(s)");
-        val _ =
-          length term_args > m andalso Term.is_Type (Term.body_type T) andalso
-            err (" cannot have more than " ^ string_of_int m ^ " argument(s)");
-
-        val (decls1, ctxt1) = ml_args ctxt type_args;
-        val (decls2, ctxt2) = ml_args ctxt1 term_args;
-        val (decls3, ctxt3) = ml_args ctxt2 fn_body;
-        fun decl' ctxt' =
-          let
-            val (ml_args_env1, ml_args_body1) = split_list (decls1 ctxt');
-            val (ml_args_env2, ml_args_body2) = split_list (decls2 ctxt');
-            val (ml_fn_env, ml_fn_body) = split_list (decls3 ctxt');
-
-            val relevant = map is_dummy type_args ~~ type_paths;
-            fun relevant_path is =
-              not pattern orelse
-                let val p = rev is
-                in relevant |> exists (fn (u, q) => not u andalso is_prefix (op =) p q) end;
-
-            val ml_typarg = the o AList.lookup (op =) (type_params ~~ ml_args_body1);
-            fun ml_typ is (Type (d, Us)) =
-                  if relevant_path is then
-                    ml "Term.Type " @
-                    ml_pair (ml_string d, ml_list (map_index (fn (i, U) => ml_typ (i :: is) U) Us))
-                  else ml_dummy
-              | ml_typ is (TVar arg) = if relevant_path is then ml_typarg arg else ml_dummy
-              | ml_typ _ (TFree _) = raise Match;
-
-            fun ml_app [] = ml "Term.Const " @ ml_pair (ml_string c, ml_typ [] T)
-              | ml_app (u :: us) = ml "Term.$ " @ ml_pair (ml_app us, u);
-
-            val ml_env = flat (ml_args_env1 @ ml_args_env2 @ ml_fn_env);
-            val ml1 = ml_enclose range (ml_app (rev ml_args_body2));
-            val ml2 =
-              if function then
-                ml_enclose range
-                 (ml_range range "fn " @ ml1 @ ml "=> " @ flat ml_fn_body @
-                  ml "| t => " @ ml_range range "raise" @
-                  ml " Term.TERM (" @ ml_string ("Const_fn " ^ quote c) @ ml ", [t])")
-              else ml1;
-          in (ml_env, ml2) end;
-      in (decl', ctxt3) end);
-
-val _ = Theory.setup
- (type_antiquotation \<^binding>\<open>Type\<close> {function = false} #>
-  type_antiquotation \<^binding>\<open>Type_fn\<close> {function = true} #>
-  const_antiquotation \<^binding>\<open>Const\<close> {pattern = false, function = false} #>
-  const_antiquotation \<^binding>\<open>Const_\<close> {pattern = true, function = false} #>
-  const_antiquotation \<^binding>\<open>Const_fn\<close> {pattern = true, function = true});
-
-in end;
-
-
-(* special forms *)
-
-val _ = Theory.setup
- (ML_Antiquotation.special_form \<^binding>\<open>try\<close> "() |> Basics.try" #>
-  ML_Antiquotation.special_form \<^binding>\<open>can\<close> "() |> Basics.can");
-
-
-(* basic combinators *)
-
-local
-
-val parameter = Parse.position Parse.nat >> (fn (n, pos) =>
-  if n > 1 then n else error ("Bad parameter: " ^ string_of_int n ^ Position.here pos));
-
-fun indices n = map string_of_int (1 upto n);
-
-fun empty n = replicate_string n " []";
-fun dummy n = replicate_string n " _";
-fun vars x n = implode (map (fn a => " " ^ x ^ a) (indices n));
-fun cons n = implode (map (fn a => " (x" ^ a ^ " :: xs" ^ a ^ ")") (indices n));
-
-val tuple = enclose "(" ")" o commas;
-fun tuple_empty n = tuple (replicate n "[]");
-fun tuple_vars x n = tuple (map (fn a => x ^ a) (indices n));
-fun tuple_cons n = "(" ^ tuple_vars "x" n ^ " :: xs)"
-fun cons_tuple n = tuple (map (fn a => "x" ^ a ^ " :: xs" ^ a) (indices n));
-
-in
-
-val _ = Theory.setup
- (ML_Antiquotation.value \<^binding>\<open>map\<close>
-    (Scan.lift parameter >> (fn n =>
-      "fn f =>\n\
-      \  let\n\
-      \    fun map _" ^ empty n ^ " = []\n\
-      \      | map f" ^ cons n ^ " = f" ^ vars "x" n ^ " :: map f" ^ vars "xs" n ^ "\n\
-      \      | map _" ^  dummy n ^ " = raise ListPair.UnequalLengths\n" ^
-      "  in map f end")) #>
-  ML_Antiquotation.value \<^binding>\<open>fold\<close>
-    (Scan.lift parameter >> (fn n =>
-      "fn f =>\n\
-      \  let\n\
-      \    fun fold _" ^ empty n ^ " a = a\n\
-      \      | fold f" ^ cons n ^ " a = fold f" ^ vars "xs" n ^ " (f" ^ vars "x" n ^ " a)\n\
-      \      | fold _" ^  dummy n ^ " _ = raise ListPair.UnequalLengths\n" ^
-      "  in fold f end")) #>
-  ML_Antiquotation.value \<^binding>\<open>fold_map\<close>
-    (Scan.lift parameter >> (fn n =>
-      "fn f =>\n\
-      \  let\n\
-      \    fun fold_map _" ^ empty n ^ " a = ([], a)\n\
-      \      | fold_map f" ^ cons n ^ " a =\n\
-      \          let\n\
-      \            val (x, a') = f" ^ vars "x" n ^ " a\n\
-      \            val (xs, a'') = fold_map f" ^ vars "xs" n ^ " a'\n\
-      \          in (x :: xs, a'') end\n\
-      \      | fold_map _" ^  dummy n ^ " _ = raise ListPair.UnequalLengths\n" ^
-      "  in fold_map f end")) #>
-  ML_Antiquotation.value \<^binding>\<open>split_list\<close>
-    (Scan.lift parameter >> (fn n =>
-      "fn list =>\n\
-      \  let\n\
-      \    fun split_list [] =" ^ tuple_empty n ^ "\n\
-      \      | split_list" ^ tuple_cons n ^ " =\n\
-      \          let val" ^ tuple_vars "xs" n ^ " = split_list xs\n\
-      \          in " ^ cons_tuple n ^ "end\n\
-      \  in split_list list end")) #>
-  ML_Antiquotation.value \<^binding>\<open>apply\<close>
-    (Scan.lift (parameter -- Scan.option (Args.parens (Parse.position Parse.nat))) >>
-      (fn (n, opt_index) =>
-        let
-          val cond =
-            (case opt_index of
-              NONE => K true
-            | SOME (index, index_pos) =>
-                if 1 <= index andalso index <= n then equal (string_of_int index)
-                else error ("Bad index: " ^ string_of_int index ^ Position.here index_pos));
-        in
-          "fn f => fn " ^ tuple_vars "x" n ^ " => " ^
-            tuple (map (fn a => (if cond a then "f x" else "x") ^ a) (indices n))
-        end)));
-
-end;
-
-
-(* outer syntax *)
-
-val _ = Theory.setup
- (ML_Antiquotation.value_embedded \<^binding>\<open>keyword\<close>
-    (Args.context --
-      Scan.lift (Parse.embedded_position || Parse.position (Parse.keyword_with (K true)))
-      >> (fn (ctxt, (name, pos)) =>
-        if Keyword.is_keyword (Thy_Header.get_keywords' ctxt) name then
-          (Context_Position.report ctxt pos (Token.keyword_markup (true, Markup.keyword2) name);
-           "Parse.$$$ " ^ ML_Syntax.print_string name)
-        else error ("Bad outer syntax keyword " ^ quote name ^ Position.here pos))) #>
-  ML_Antiquotation.value_embedded \<^binding>\<open>command_keyword\<close>
-    (Args.context -- Scan.lift Parse.embedded_position >> (fn (ctxt, (name, pos)) =>
-      (case Keyword.command_markup (Thy_Header.get_keywords' ctxt) name of
-        SOME markup =>
-         (Context_Position.reports ctxt [(pos, markup), (pos, Markup.keyword1)];
-          ML_Syntax.print_pair ML_Syntax.print_string ML_Syntax.print_position (name, pos))
-      | NONE => error ("Bad outer syntax command " ^ quote name ^ Position.here pos)))));
-
-end;
--- a/src/Pure/ML/ml_antiquotations2.ML	Wed Oct 20 16:36:49 2021 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,19 +0,0 @@
-(*  Title:      Pure/ML/ml_antiquotations2.ML
-    Author:     Makarius
-
-Miscellaneous ML antiquotations: part 2.
-*)
-
-structure ML_Antiquotations2: sig end =
-struct
-
-val _ = Theory.setup
- (ML_Antiquotation.inline_embedded \<^binding>\<open>method\<close>
-    (Args.context -- Scan.lift Args.embedded_position >>
-      (ML_Syntax.print_string o uncurry Method.check_name)) #>
-
-  ML_Antiquotation.inline_embedded \<^binding>\<open>locale\<close>
-   (Args.theory -- Scan.lift Args.embedded_position >>
-      (ML_Syntax.print_string o uncurry Locale.check)));
-
-end;
--- a/src/Pure/ROOT.ML	Wed Oct 20 16:36:49 2021 +0200
+++ b/src/Pure/ROOT.ML	Wed Oct 20 16:45:10 2021 +0200
@@ -240,7 +240,7 @@
 ML_file "ML/ml_context.ML";
 ML_file "ML/ml_antiquotation.ML";
 ML_file "ML/ml_compiler2.ML";
-ML_file "ML/ml_antiquotations1.ML";
+ML_file "ML/ml_antiquotations.ML";
 
 
 section "Bootstrap phase 3: towards theory Pure and final ML toplevel setup";
@@ -303,7 +303,6 @@
 (*theory documents*)
 ML_file "Thy/term_style.ML";
 ML_file "Isar/outer_syntax.ML";
-ML_file "ML/ml_antiquotations2.ML";
 ML_file "ML/ml_pid.ML";
 ML_file "Thy/document_antiquotation.ML";
 ML_file "Thy/document_output.ML";