reworked b2 and b8 functions

This commit is contained in:
Stefan Friese 2024-05-16 21:52:38 +02:00
parent dec7ccc3c5
commit 0b5f07477e
1 changed files with 39 additions and 20 deletions

57
Main.hs
View File

@ -270,15 +270,18 @@ enc10 :: String -> String
enc10 str = C.unpack $ C.pack $ Prelude.foldl (\acc char -> acc ++ show (ord char)) "" str enc10 str = C.unpack $ C.pack $ Prelude.foldl (\acc char -> acc ++ show (ord char)) "" str
-- decode octal -- decode octal
-- octalToChar :: String -> Char
-- octalToChar str = chr $ Prelude.foldl (\acc c -> acc * 8 + read [c]) 0 str
-- Function to decode a single octal value to its corresponding character
octalToChar :: String -> Char octalToChar :: String -> Char
octalToChar str = chr $ Prelude.foldl (\acc c -> acc * 8 + read [c]) 0 str octalToChar octal = chr (read ("0o" ++ octal)) -- Assumes input is in base 8 (octal)
chunksOf :: Int -> [a] -> [[a]] -- Function to split a string into chunks of three characters each
chunksOf _ [] = [] chunksOf3 :: String -> [String]
chunksOf n xs = Prelude.take n xs : chunksOf n (Prelude.drop n xs) chunksOf3 [] = []
chunksOf3 str = Prelude.take 3 str : chunksOf3 (Prelude.drop 3 str)
decodeOctal :: String -> String
decodeOctal = map octalToChar . words
-- decodeOctal :: String -> String -- decodeOctal :: String -> String
-- decodeOctal = map (octalToChar . padOctal) . words -- decodeOctal = map (octalToChar . padOctal) . words
@ -291,7 +294,7 @@ decodeOctal = map octalToChar . words
-- Function to decode a string of octal numbers to characters -- Function to decode a string of octal numbers to characters
dec8 :: String -> String dec8 :: String -> String
dec8 = map octalToChar . chunksOf 3 . filter (/= ' ') dec8 = map octalToChar . words
-- dec8 :: String -> String -- dec8 :: String -> String
-- dec8 = C.unpack . encodeUtf8 . toText . showbOct . hexStringToInt -- dec8 = C.unpack . encodeUtf8 . toText . showbOct . hexStringToInt
@ -330,6 +333,11 @@ dec8 = map octalToChar . chunksOf 3 . filter (/= ' ')
-- enc8 :: String -> String -- enc8 :: String -> String
-- enc8 = unwords . map (concatMap unicodeToOctal . (:[])) -- enc8 = unwords . map (concatMap unicodeToOctal . (:[]))
chunksOf :: Int -> [a] -> [[a]]
chunksOf _ [] = []
chunksOf n xs = Prelude.take n xs : chunksOf n (Prelude.drop n xs)
unicodeToOctal :: Char -> [String] unicodeToOctal :: Char -> [String]
unicodeToOctal c = chunksOf 3 $ reverse $ decimalToOctal' (ord c) unicodeToOctal c = chunksOf 3 $ reverse $ decimalToOctal' (ord c)
where where
@ -351,25 +359,36 @@ enc8 = unwords . concatMap unicodeToOctal
-- enc8 :: String -> String -- enc8 :: String -> String
-- enc8 = concatMap unicodeToOctal -- enc8 = concatMap unicodeToOctal
dec2 :: String -> String -- dec2 :: String -> String
-- dec2 = C.unpack . encodeUtf8 . toText . showbBin . hexStringToInt -- dec2 = C.unpack . encodeUtf8 . toText . showbBin . hexStringToInt
-- dec2 = TL.unpack . toLazyText . showbBin . hexStringToInt . enc16 -- dec2 = TL.unpack . toLazyText . showbBin . hexStringToInt . enc16
dec2 = TL.unpack . toLazyText . showbBin . hexStringToInt -- dec2 = TL.unpack . toLazyText . showbBin . hexStringToInt
--
binaryToChar :: String -> Char
binaryToChar binStr = chr $ binaryToInt binStr
binaryToInt :: String -> Int
binaryToInt binStr = Prelude.foldl (\acc x -> acc * 2 + digitToInt x) 0 binStr
dec2 :: String -> String
dec2 input = map binaryToChar $ words input
enc2 :: String -> String
-- enc2 = C.unpack . BSU.fromString . intToHexString . binToInt . (reverse . (map fromJust . (map fromBinDigit))) -- enc2 = C.unpack . BSU.fromString . intToHexString . binToInt . (reverse . (map fromJust . (map fromBinDigit)))
-- enc2 input = C.unpack $ C.pack $ show $ Prelude.foldl (\acc char -> (acc `shiftL` 8) .|. fromIntegral (ord char)) BSU.fromString -- enc2 input = C.unpack $ C.pack $ show $ Prelude.foldl (\acc char -> (acc `shiftL` 8) .|. fromIntegral (ord char)) BSU.fromString
enc2 input = concatMap (\c -> padTo7Bits (decimalToBinary (ord c))) input charToBinary :: Char -> String
charToBinary char = let binaryStr = intToBinary $ ord char
in replicate (7 - Prelude.length binaryStr) '0' ++ binaryStr
intToBinary :: Int -> String
intToBinary n = reverse $ decimalToBinary' n
where where
decimalToBinary :: Int -> String decimalToBinary' 0 = "0"
decimalToBinary 0 = "0" decimalToBinary' m = let (q, r) = m `divMod` 2 in intToDigit r : decimalToBinary' q
decimalToBinary n = reverse $ decimalToBinary' n
where -- enc2 :: String -> String
decimalToBinary' 0 = "" enc2 :: String -> String
decimalToBinary' m = let (q, r) = m `divMod` 2 in (if r == 0 then '0' else '1') : decimalToBinary' q enc2 input = unwords $ map charToBinary input
padTo7Bits :: String -> String
padTo7Bits bits = replicate (7 - Prelude.length bits) '0' ++ bits
decqp :: String -> String decqp :: String -> String