author | wenzelm |
Wed, 25 Mar 2015 14:39:40 +0100 | |
changeset 59812 | 675d0c692c41 |
parent 59720 | f893472fff31 |
child 60731 | 4ac4b314d93c |
permissions | -rw-r--r-- |
59720 | 1 |
(* Title: Pure/General/completion.ML |
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Author: Makarius |
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Semantic completion within the formal context. |
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*) |
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signature COMPLETION = |
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sig |
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type T |
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val names: Position.T -> (string * (string * string)) list -> T |
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val none: T |
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val make: string * Position.T -> ((string -> bool) -> (string * (string * string)) list) -> T |
55840
2982d233d798
consider completion report as part of error message -- less stateful, may get handled;
wenzelm
parents:
55694
diff
changeset
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val reported_text: T -> string |
55915
607948c90bf0
suppress short abbreviations more uniformly, for outer and quasi-outer syntax;
wenzelm
parents:
55840
diff
changeset
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val suppress_abbrevs: string -> Markup.T list |
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end; |
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structure Completion: COMPLETION = |
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struct |
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(* completion of names *) |
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abstype T = |
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Completion of {pos: Position.T, total: int, names: (string * (string * string)) list} |
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with |
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fun dest (Completion args) = args; |
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55694
a1184dfb8e00
clarified semantic completion: retain kind.full_name as official item name for history;
wenzelm
parents:
55687
diff
changeset
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fun names pos names = |
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Completion |
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{pos = pos, |
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total = length names, |
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names = take (Options.default_int "completion_limit") names}; |
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end; |
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55694
a1184dfb8e00
clarified semantic completion: retain kind.full_name as official item name for history;
wenzelm
parents:
55687
diff
changeset
|
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val none = names Position.none []; |
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fun make (name, pos) make_names = |
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if Position.is_reported pos andalso name <> "" andalso name <> "_" |
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then names pos (make_names (String.isPrefix (Name.clean name))) |
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else none; |
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||
55840
2982d233d798
consider completion report as part of error message -- less stateful, may get handled;
wenzelm
parents:
55694
diff
changeset
|
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fun reported_text completion = |
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let val {pos, total, names} = dest completion in |
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if Position.is_reported pos andalso not (null names) then |
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let |
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55694
a1184dfb8e00
clarified semantic completion: retain kind.full_name as official item name for history;
wenzelm
parents:
55687
diff
changeset
|
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val markup = Position.markup pos Markup.completion; |
a1184dfb8e00
clarified semantic completion: retain kind.full_name as official item name for history;
wenzelm
parents:
55687
diff
changeset
|
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val body = (total, names) |> |
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let open XML.Encode in pair int (list (pair string (pair string string))) end; |
55840
2982d233d798
consider completion report as part of error message -- less stateful, may get handled;
wenzelm
parents:
55694
diff
changeset
|
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in YXML.string_of (XML.Elem (markup, body)) end |
2982d233d798
consider completion report as part of error message -- less stateful, may get handled;
wenzelm
parents:
55694
diff
changeset
|
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else "" |
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end; |
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||
55915
607948c90bf0
suppress short abbreviations more uniformly, for outer and quasi-outer syntax;
wenzelm
parents:
55840
diff
changeset
|
54 |
|
607948c90bf0
suppress short abbreviations more uniformly, for outer and quasi-outer syntax;
wenzelm
parents:
55840
diff
changeset
|
55 |
(* suppress short abbreviations *) |
607948c90bf0
suppress short abbreviations more uniformly, for outer and quasi-outer syntax;
wenzelm
parents:
55840
diff
changeset
|
56 |
|
607948c90bf0
suppress short abbreviations more uniformly, for outer and quasi-outer syntax;
wenzelm
parents:
55840
diff
changeset
|
57 |
fun suppress_abbrevs s = |
55917
5438ed05e1c9
special treatment of method combinators like Args.$$$ keywords, although parsed via Parse.$$$;
wenzelm
parents:
55915
diff
changeset
|
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if not (Symbol.is_ascii_identifier s) andalso (length (Symbol.explode s) <= 1 orelse s = "::") |
55915
607948c90bf0
suppress short abbreviations more uniformly, for outer and quasi-outer syntax;
wenzelm
parents:
55840
diff
changeset
|
59 |
then [Markup.no_completion] |
607948c90bf0
suppress short abbreviations more uniformly, for outer and quasi-outer syntax;
wenzelm
parents:
55840
diff
changeset
|
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else []; |
607948c90bf0
suppress short abbreviations more uniformly, for outer and quasi-outer syntax;
wenzelm
parents:
55840
diff
changeset
|
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end; |