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Within LTS Haskell 24.58 (ghc-9.10.3)

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1. stripPrefix :: ByteString -> ByteString -> Maybe ByteString

   rio	RIO.ByteString.Lazy

   O(n) The stripPrefix function takes two ByteStrings and returns Just the remainder of the second iff the first is its prefix, and otherwise Nothing.

2. stripSuffix :: ByteString -> ByteString -> Maybe ByteString

   rio	RIO.ByteString.Lazy

   O(n) The stripSuffix function takes two ByteStrings and returns Just the remainder of the second iff the first is its suffix, and otherwise Nothing.

3. dropPrefix :: Eq a => [a] -> [a] -> [a]

   rio	RIO.List

   Drop prefix if present, otherwise return original list.

4. dropSuffix :: Eq a => [a] -> [a] -> [a]

   rio	RIO.List

   Drop prefix if present, otherwise return original list.

5. isInfixOf :: Eq a => [a] -> [a] -> Bool

   rio	RIO.List

   The isInfixOf function takes two lists and returns True iff the first list is contained, wholly and intact, anywhere within the second.

   Examples

   >>> isInfixOf "Haskell" "I really like Haskell."
   True
   

   >>> isInfixOf "Ial" "I really like Haskell."
   False
   

   For the result to be True, the first list must be finite; for the result to be False, the second list must be finite:

   >>> [20..50] `isInfixOf` [0..]
   True
   

   >>> [0..] `isInfixOf` [20..50]
   False
   

   >>> [0..] `isInfixOf` [0..]
   * Hangs forever *
   

6. isPrefixOf :: Eq a => [a] -> [a] -> Bool

   rio	RIO.List

   The isPrefixOf function takes two lists and returns True iff the first list is a prefix of the second.

   Examples

   >>> "Hello" `isPrefixOf` "Hello World!"
   True
   

   >>> "Hello" `isPrefixOf` "Wello Horld!"
   False
   

   For the result to be True, the first list must be finite; False, however, results from any mismatch:

   >>> [0..] `isPrefixOf` [1..]
   False
   

   >>> [0..] `isPrefixOf` [0..99]
   False
   

   >>> [0..99] `isPrefixOf` [0..]
   True
   

   >>> [0..] `isPrefixOf` [0..]
   * Hangs forever *
   

   isPrefixOf shortcuts when the first argument is empty:

   >>> isPrefixOf [] undefined
   True
   

7. isSuffixOf :: Eq a => [a] -> [a] -> Bool

   rio	RIO.List

   The isSuffixOf function takes two lists and returns True iff the first list is a suffix of the second.

   Examples

   >>> "ld!" `isSuffixOf` "Hello World!"
   True
   

   >>> "World" `isSuffixOf` "Hello World!"
   False
   

   The second list must be finite; however the first list may be infinite:

   >>> [0..] `isSuffixOf` [0..99]
   False
   

   >>> [0..99] `isSuffixOf` [0..]
   * Hangs forever *
   

8. stripPrefix :: Eq a => [a] -> [a] -> Maybe [a]

   rio	RIO.List

   The stripPrefix function drops the given prefix from a list. It returns Nothing if the list did not start with the prefix given, or Just the list after the prefix, if it does.

   Examples

   >>> stripPrefix "foo" "foobar"
   Just "bar"
   

   >>> stripPrefix "foo" "foo"
   Just ""
   

   >>> stripPrefix "foo" "barfoo"
   Nothing
   

   >>> stripPrefix "foo" "barfoobaz"
   Nothing
   

9. stripSuffix :: Eq a => [a] -> [a] -> Maybe [a]

   rio	RIO.List

   Remove the suffix from the given list, if present

10. isPrefixOf :: Eq a => [a] -> NonEmpty a -> Bool

    rio	RIO.NonEmpty

    The isPrefixOf function returns True if the first argument is a prefix of the second.

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