+symbol :: Parser Char
+symbol = oneOf "!#$%&|*+-/:<=>?@^_~"
+
+spaces :: Parser ()
+spaces = skipMany space
+
+readExpr :: String -> String
+readExpr input = case parse (spaces >> symbol) "lisp" input of
+ Left err -> "No match: " ++ show err
+ Right val -> "Found value"
+