I cannot understand the following code very well as i donot know the
definition of "satisfy" and "<?>".
-- | Case-insensitive variant of Parsec's 'char' function.
caseChar :: Char -> GenParser Char a Char
caseChar c = satisfy (\x -> toUpper x == toUpper c)
-- | Case-insensitive variant of Parsec's 'string' function.
caseString :: String -> GenParser Char a ()
caseString cs = mapM_ caseChar cs <?> cs
Would somebody mind to explain the code in detail ?
Sincerely!
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