Created
April 27, 2015 01:40
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Golf is fun
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| import Text.ParserCombinators.Parsec | |
| main = (getLine >>= \line -> putStrLn . either show show $ ((parse (many digit >>= \d1 -> oneOf ['+','-','/','*'] >>= \f -> many digit >>= \d2 -> return (read d1, (if (f == '+') then (+) else if (f=='-') then (-) else if (f == '*') then (*) else if (f == '/') then (/) else undefined), read d2)) "golf parser"line) >>= \(d1,f,d2)->return (f d1 d2))) |
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