23 lines
757 B
Haskell
23 lines
757 B
Haskell
module Mima.Util
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( ToText(..)
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, toHex
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) where
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import qualified Data.Text as T
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import qualified Numeric as N
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-- | A class for types that can be converted to 'T.Text'.
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--
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-- This class does not mean to convert elements to text in a
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-- standardized way. It is just to reduce the clutter of functions
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-- with names like @somethingToText@.
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--
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-- Only create an instance of this class when there is an obvious,
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-- preferrable way of converting something to text! If there are
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-- multiple "obvious" options, create no instance of this class and
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-- instead name the functions individually.
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class ToText a where
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toText :: a -> T.Text
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toHex :: (Integral a, Show a) => Int -> a -> T.Text
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toHex digits a = T.justifyRight digits '0' $ T.pack $ N.showHex a ""
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