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Synopsis |
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Documentation |
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method reason of this class maps a value of type a to an explanation of
the input syntax for a value of type a
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Reads an email address according to RFC 2822
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newtype CreditCardNumber | Source |
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Reads a credit card number and performs Luhn check on it.
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Reads credit card expiration dates in format .
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Non-empty strings.
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Phone numbers.
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Non-empty strings of digits.
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Arbitrary string data. No quotes required.
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A Password is a string of length >= 8 with characters taken from at least
three of the four sets: lower case characters, upper case characters, digits,
and special characters.
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Data type for transforming a field into an optional one. The Read syntax of
Absent is the empty string, whereas the Read syntax of Present a is just the
Read syntax of a. Analogously for Show.
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Analogous to Maybe.fromJust
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Analogous to Maybe.fromMaybe
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Produced by Haddock version 2.6.1 |