clarified semantic completion: retain kind.full_name as official item name for history;
misc tuning;
(* Title: Pure/Isar/completion.ML
Author: Makarius
Semantic completion within the formal context.
*)
signature COMPLETION =
sig
type T
val names: Position.T -> (string * string) list -> T
val none: T
val report: T -> unit
end;
structure Completion: COMPLETION =
struct
abstype T = Completion of {pos: Position.T, total: int, names: (string * string) list}
with
fun dest (Completion args) = args;
fun names pos names =
Completion
{pos = pos,
total = length names,
names = take (Options.default_int "completion_limit") names};
end;
val none = names Position.none [];
fun report completion =
let val {pos, total, names} = dest completion in
if Position.is_reported pos andalso not (null names) then
let
val markup = Position.markup pos Markup.completion;
val body = (total, names) |>
let open XML.Encode in pair int (list (pair string string)) end;
in Output.report (YXML.string_of (XML.Elem (markup, body))) end
else ()
end;
end;