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a88b70feb7
Summary: In both `Api.hs` and `Debug.hs` I noticed that I was staring at the code longer than necessary to figure out what a lambda with a destructure and pattern match were doing. Moving it to a function in `where` named `isRelevantDimension` makes skimming easier. Reviewed By: chessai Differential Revision: D28213243 fbshipit-source-id: 344f464dcac7297009c35b19373eef67e0eb9540
75 lines
2.0 KiB
Haskell
75 lines
2.0 KiB
Haskell
-- Copyright (c) 2016-present, Facebook, Inc.
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-- All rights reserved.
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--
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-- This source code is licensed under the BSD-style license found in the
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-- LICENSE file in the root directory of this source tree.
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{-# LANGUAGE NoRebindableSyntax #-}
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{-# LANGUAGE RecordWildCards #-}
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module Duckling.Api
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( analyze
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, formatToken
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, parse
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, supportedDimensions
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) where
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import Data.HashMap.Strict (HashMap)
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import Data.HashSet (HashSet)
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import Data.Text (Text)
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import Prelude
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import qualified Data.HashMap.Strict as HashMap
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import qualified Data.HashSet as HashSet
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import qualified Data.Text as Text
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import Duckling.Dimensions.Types
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import Duckling.Dimensions
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import Duckling.Engine
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import Duckling.Locale
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import Duckling.Ranking.Classifiers
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import Duckling.Ranking.Rank
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import Duckling.Resolve
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import Duckling.Rules
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import Duckling.Types
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-- | Parses `input` and returns a curated list of entities found.
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parse
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:: Text
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-> Context
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-> Options
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-> [Seal Dimension]
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-> [Entity]
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parse input ctx options =
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map (formatToken input)
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. analyze input ctx options
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. HashSet.fromList
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supportedDimensions :: HashMap Lang [Seal Dimension]
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supportedDimensions =
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HashMap.fromList [ (l, allDimensions l) | l <- [minBound..maxBound] ]
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-- | Returns a curated list of resolved tokens found
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-- When `targets` is non-empty, returns only tokens of such dimensions.
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analyze
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:: Text
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-> Context
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-> Options
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-> HashSet (Seal Dimension)
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-> [ResolvedToken]
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analyze input context@Context{..} options targets =
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rank (classifiers locale) targets
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$ filter isRelevantDimension
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$ parseAndResolve (rulesFor locale targets) input context options
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where
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isRelevantDimension Resolved{node = Node{token = (Token d _)}} =
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HashSet.null targets || HashSet.member (Seal d) targets
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-- | Converts the resolved token to the API format
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formatToken :: Text -> ResolvedToken -> Entity
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formatToken sentence
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(Resolved (Range start end) node@Node{token = Token dim _} value latent)
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= Entity (toName dim) body value start end latent node
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where
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body = Text.drop start $ Text.take end sentence
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