Data commit

Task/Special-characters/Haskell/special-characters-1.hs

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+-- comment here until end of line
+{- comment here -}

Task/Special-characters/Haskell/special-characters-2.hs

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+! # $ % & * + - . / < = > ? @ \ ^ | - ~ :
+: as first character denotes constructor

Task/Special-characters/Haskell/special-characters-3.hs

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+.. : :: = \ | <- -> @ ~ => _

Task/Special-characters/Haskell/special-characters-4.hs

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+`identifier` (to use as infix operator)

Task/Special-characters/Haskell/special-characters-5.hs

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+'.'
+\ escapes

Task/Special-characters/Haskell/special-characters-6.hs

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+"..."
+\ escapes

Task/Special-characters/Haskell/special-characters-7.hs

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+\a alert
+\b backspace
+\f form feed
+\n new line
+\r carriage return
+\t horizontal tab
+\v vertical tab

Task/Special-characters/Haskell/special-characters-8.hs

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+( )   (grouping)
+( , ) (tuple type/tuple constructor)
+{ ; } (grouping inside let, where, do, case without layout)
+[ , ] (list type/list constructor)
+[ | ] (list comprehension)

Task/Special-characters/Haskell/special-characters-9.hs

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+Upper case (identifiers)
+Lower case (identifiers)
+Digits (numbers)
+Symbol/punctuation (operators)