{-# OPTIONS_GHC -threaded -rtsopts #-}
{-# OPTIONS_HADDOCK show-extensions #-}
{-# LANGUAGE BangPatterns, FlexibleContexts #-}
-- |
-- Module : Phonetic.Languages.Common
-- Copyright : (c) OleksandrZhabenko 2020-2021
-- License : MIT
-- Stability : Experimental
-- Maintainer : olexandr543@yahoo.com
--
--
--
module Phonetic.Languages.Common (
fLines
, fLinesIO
) where
import Phonetic.Languages.Ukrainian.PrepareText
import Data.Char (isAlpha,isSpace)
import Data.Monoid (mappend)
fLines :: Int -> String -> [String]
fLines !toOneLine ys = filter (any (\x -> isUkrainianL x && isAlpha x)) . prepareText .
(\z -> if toOneLine == 1 then unls z else z) $ ys
-- the 'unls' is taken from the 'Data.List.words' and rewritten to be equal to 'unwords' . 'words'
where unls s = case dropWhile isSpace s of
"" -> []
s' -> w `mappend` (' ' : unls s'')
where (w, s'') = break isSpace s'
fLinesIO :: String -> IO ()
fLinesIO ys = mapM_ putStrLn . map (\(i,x) -> show (i + 1) ++ "\t" ++ x) . helpG3 . indexedL "" .
filter (any (\x -> isUkrainianL x && isAlpha x)) . prepareText $ ys
-- | Is taken mostly from the Phonetic.Languages.Simplified.Lists.UniquenessPeriodsG module from the @phonetic-languages-simplified-common@ package.
indexedL :: Foldable t => b -> t b -> [(Int, b)]
indexedL y zs = foldr f v zs
where !v = [(length zs,y)]
f x ((j,z):ys) = (j-1,x):(j,z):ys
{-# INLINE indexedL #-}
helpG3 :: [a] -> [a]
helpG3 xs
| null xs = []
| otherwise = init xs