WashNGo-2.12.0.1: WASH is a family of EDSLs for programming Web applications in Haskell.Source codeContentsIndex
WASH.CGI.Fields
Synopsis
class Reason a where
reason :: a -> String
washtype :: a -> String
newtype EmailAddress = EmailAddress {
unEmailAddress :: String
}
newtype CreditCardNumber = CreditCardNumber {
unCreditCardNumber :: String
}
data CreditCardExp = CreditCardExp {
cceMonth :: Int
cceYear :: Int
}
newtype NonEmpty = NonEmpty {
unNonEmpty :: String
}
newtype Phone = Phone {
unPhone :: String
}
newtype AllDigits = AllDigits {
unAllDigits :: String
}
newtype Text = Text {
unText :: String
}
newtype Password = Password {
unPassword :: String
}
data Optional a
= Absent
| Present a
fromPresent :: Optional a -> a
fromOptional :: a -> Optional a -> a
Documentation
class Reason a whereSource
method reason of this class maps a value of type a to an explanation of the input syntax for a value of type a
Methods
reason :: a -> StringSource
washtype :: a -> StringSource
newtype EmailAddress Source
Reads an email address according to RFC 2822
Constructors
EmailAddress
unEmailAddress :: String
newtype CreditCardNumber Source
Reads a credit card number and performs Luhn check on it.
Constructors
CreditCardNumber
unCreditCardNumber :: String
data CreditCardExp Source
Reads credit card expiration dates in format .
Constructors
CreditCardExp
cceMonth :: Int
cceYear :: Int
newtype NonEmpty Source
Non-empty strings.
Constructors
NonEmpty
unNonEmpty :: String
newtype Phone Source
Phone numbers.
Constructors
Phone
unPhone :: String
newtype AllDigits Source
Non-empty strings of digits.
Constructors
AllDigits
unAllDigits :: String
newtype Text Source
Arbitrary string data. No quotes required.
Constructors
Text
unText :: String
newtype Password Source
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.
Constructors
Password
unPassword :: String
data Optional a Source
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.
Constructors
Absent
Present a
fromPresent :: Optional a -> aSource
Analogous to Maybe.fromJust
fromOptional :: a -> Optional a -> aSource
Analogous to Maybe.fromMaybe
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