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Relaxed Integer type
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@ -21,7 +21,7 @@ where
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-- "nd"
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-- >>> ordinal 10
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-- "th"
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ordinal :: Integer -> String
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ordinal :: Integral a => a -> String
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ordinal number
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| remainder100 `elem` [11..13] = "th"
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| remainder10 == 1 = "st"
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@ -41,5 +41,5 @@ ordinal number
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-- "2nd"
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-- >>> ordinalize 10
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-- "10th"
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ordinalize :: Integer -> String
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ordinalize :: (Integral a, Show a) => a -> String
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ordinalize n = show n ++ ordinal n
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@ -1,3 +1,5 @@
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resolver: lts-6.4
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packages:
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- '.'
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extra-deps:
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- megaparsec-5.0.0
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@ -26,38 +26,38 @@ spec = do
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one :: Spec
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one =
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it "returns the ordinal for 1" $
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ordinal 1 `shouldBe` "st"
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ordinal (1 :: Integer) `shouldBe` "st"
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two :: Spec
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two =
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it "returns the ordinal for 2" $
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ordinal 2 `shouldBe` "nd"
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ordinal (2 :: Integer) `shouldBe` "nd"
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thousands :: Spec
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thousands = do
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it "returns the ordinal for 1002" $
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ordinal 1002 `shouldBe` "nd"
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ordinal (1002 :: Integer) `shouldBe` "nd"
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it "returns the ordinal for 1003" $
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ordinal 1003 `shouldBe` "rd"
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ordinal (1003 :: Integer) `shouldBe` "rd"
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negatives :: Spec
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negatives = do
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it "returns the ordinal for -11" $
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ordinal (-11) `shouldBe` "th"
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ordinal (-11 :: Integer) `shouldBe` "th"
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it "returns the ordinal for -1021" $
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ordinal (-1021) `shouldBe` "st"
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ordinal (-1021 :: Integer) `shouldBe` "st"
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fullOrdinals :: Spec
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fullOrdinals = do
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it "returns the full ordinal for 1" $
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ordinalize 1 `shouldBe` "1st"
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ordinalize (1 :: Integer) `shouldBe` "1st"
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it "returns the full ordinal for -1021" $
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ordinalize (-1021) `shouldBe` "-1021st"
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ordinalize (-1021 :: Integer) `shouldBe` "-1021st"
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ordinalReturnsNotEmpty :: Spec
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ordinalReturnsNotEmpty =
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it "never returns empty" $ property $
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property <$> not . null . ordinal
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property <$> not . null . (ordinal :: Integer -> String)
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ordinalizeContainsTheSameNumber :: Spec
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ordinalizeContainsTheSameNumber =
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