ates block with special chars to block with ASCII-equivalents
-- hint: you need to extract then replace special characters in block.
-- ... now where have we written an extract function. Hm.

updateConfig :: SpecialCharTable -> FilePath -> [Context] -> IO ()
updateConfig specialCharTable config ctxn = undefined

-- n
updateConfig :: SpecialCharTable -> FilePath -> [Context] -> IO ()
updateConfig specialCharTable config ctxn = undefined
updateConfig specialCharTable config ctxn = undefined