1.1 --- a/src/Pure/Syntax/syntax.ML	Sat Mar 17 12:52:40 2012 +0100
     1.2 +++ b/src/Pure/Syntax/syntax.ML	Sat Mar 17 13:06:23 2012 +0100
     1.3 @@ -43,6 +43,7 @@
     1.4    val read_typ: Proof.context -> string -> typ
     1.5    val read_term: Proof.context -> string -> term
     1.6    val read_prop: Proof.context -> string -> term
     1.7 +  val read_typs: Proof.context -> string list -> typ list
     1.8    val read_terms: Proof.context -> string list -> term list
     1.9    val read_props: Proof.context -> string list -> term list
    1.10    val read_sort_global: theory -> string -> sort
    1.11 @@ -265,11 +266,17 @@
    1.12  (* read = parse + check *)
    1.13  
    1.14  fun read_sort ctxt = parse_sort ctxt #> check_sort ctxt;
    1.15 -fun read_typ ctxt = parse_typ ctxt #> singleton (check_typs ctxt);
    1.16  
    1.17 -fun read_terms ctxt = Par_List.map_name "Syntax.read_terms" (parse_term ctxt) #> check_terms ctxt;
    1.18 -fun read_props ctxt = Par_List.map_name "Syntax.read_props" (parse_prop ctxt) #> check_props ctxt;
    1.19 +fun read_typs ctxt =
    1.20 +  grouped 10 (Par_List.map_name "Syntax.read_typs") (parse_typ ctxt) #> check_typs ctxt;
    1.21  
    1.22 +fun read_terms ctxt =
    1.23 +  grouped 10 (Par_List.map_name "Syntax.read_terms") (parse_term ctxt) #> check_terms ctxt;
    1.24 +
    1.25 +fun read_props ctxt =
    1.26 +  grouped 10 (Par_List.map_name "Syntax.read_props") (parse_prop ctxt) #> check_props ctxt;
    1.27 +
    1.28 +val read_typ = singleton o read_typs;
    1.29  val read_term = singleton o read_terms;
    1.30  val read_prop = singleton o read_props;
    1.31