WashNGo-2.12.0.1: WASH is a family of EDSLs for programming Web applications in Haskell. Source code Contents Index

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 where Source

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 -> String Source washtype :: a -> String Source

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 -> a Source

Analogous to Maybe.fromJust

fromOptional :: a -> Optional a -> a Source

Analogous to Maybe.fromMaybe

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