{-# OPTIONS_HADDOCK show-extensions #-}
-- |
-- Module : Phonetic.Languages.Simplified.StrictVG.Base
-- Copyright : (c) OleksandrZhabenko 2020
-- License : MIT
-- Stability : Experimental
-- Maintainer : olexandr543@yahoo.com
--
-- Simplified version of the @phonetic-languages-common@ package.
-- Uses less dependencies.
{-# LANGUAGE BangPatterns #-}
module Phonetic.Languages.Simplified.StrictVG.Base (
-- * Working with lists
uniquenessVariants2GNBL
, uniquenessVariants2GNPBL
) where
import Phonetic.Languages.Permutations.Arr
import Phonetic.Languages.Simplified.DataG.Base
import qualified Data.Foldable as F
import Data.SubG
import GHC.Arr
import Data.Monoid
uniquenessVariants2GNBL ::
(Eq a, Foldable t, InsertLeft t a, Monoid (t a), Monoid (t (t a))) => a -- ^ The first most common element in the \"whitespace symbols\" structure
-> (t a -> [a]) -- ^ The function that is used internally to convert to the @[a]@ so that the function can process further the permutations
-> ((t (t a)) -> [[a]]) -- ^ The function that is used internally to convert to the @[[a]]@ so that the function can process further
-> ([a] -> t a) -- ^ The function that is used internally to convert to the needed representation so that the function can process further
-> [Array Int Int] -- ^ The permutations of 'Int' indices starting from 0 and up to n (n is probably less than 8).
-> t (t a) -- ^ Must be obtained as 'subG' @whspss xs@
-> [t a]
uniquenessVariants2GNBL !hd f1 f2 f3 perms !subs = uniquenessVariants2GNPBL mempty mempty hd f1 f2 f3 perms subs
{-# INLINE uniquenessVariants2GNBL #-}
uniquenessVariants2GNPBL ::
(Eq a, Foldable t, InsertLeft t a, Monoid (t a), Monoid (t (t a))) => t a
-> t a
-> a -- ^ The first most common element in the whitespace symbols structure
-> (t a -> [a]) -- ^ The function that is used internally to convert to the @[a]@ so that the function can process further the permutations
-> ((t (t a)) -> [[a]]) -- ^ The function that is used internally to convert to the @[[a]]@ so that the function can process further
-> ([a] -> t a) -- ^ The function that is used internally to convert to the needed representation that the function can process further
-> [Array Int Int] -- ^ The permutations of 'Int' indices starting from 0 and up to n (n is probably less than 7).
-> t (t a) -- ^ Must be obtained as @subG whspss xs@
-> [t a]
uniquenessVariants2GNPBL !ts !us !hd f1 f2 f3 perms !subs
| F.null subs = mempty
| otherwise =
let !uss = (hd %@ us) %^ mempty
!base0 = map (hd %@) . f2 $ subs
!l = length base0
!baseArr = listArray (0,l - 1) base0
!ns = universalSetGL ts uss f1 f2 perms baseArr in map f3 ns