sed -i -E "s/еж([аиу][^а-я])/ёжик\1/g" *ru* grep -E "еж[аиу][^а-я]" *ru* Comment: [^а-я] includes all spaces and punctuation and also finish of string

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{-# LANGUAGE ImpredicativeTypes #-}

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module Main where

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import qualified MODULE as M

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main = undefined $ M.FUNCTION PARAMETERS