Safe Haskell	Trustworthy
Language	Haskell2010

Data.Time.MonthName

Contents

Types
Conversion with Day
Conversions with Text

Description

Month data type.

Synopsis

data MonthName
- = January
- | February
- | March
- | April
- | May
- | June
- | July
- | August
- | September
- | October
- | November
- | December
dayToYearMonthName :: Day -> (Year, MonthName)
firstDayOfYearMonthName :: (Year, MonthName) -> Day
lastDayOfYearMonthName :: (Year, MonthName) -> Day
yearMonthNameInterval :: (Year, MonthName) -> Interval Day
monthNameToText :: MonthName -> Text
parseMonthName :: Text -> Either String MonthName
yearMonthNameToText :: (Year, MonthName) -> Text
parseYearMonthName :: Text -> Either String (Year, MonthName)

Types

data MonthName Source #

We explicitly enumerate month names. Using an Int is unsafe.

Constructors

January
February
March
April
May
June
July
August
September
October
November
December

Instances

Instances details

Bounded MonthName Source #
Instance details Defined in Data.Time.MonthName Methods minBound :: MonthName # maxBound :: MonthName #
Enum MonthName Source #
Instance details Defined in Data.Time.MonthName Methods succ :: MonthName -> MonthName # pred :: MonthName -> MonthName # toEnum :: Int -> MonthName # fromEnum :: MonthName -> Int # enumFrom :: MonthName -> [MonthName] # enumFromThen :: MonthName -> MonthName -> [MonthName] # enumFromTo :: MonthName -> MonthName -> [MonthName] # enumFromThenTo :: MonthName -> MonthName -> MonthName -> [MonthName] #
Eq MonthName Source #
Instance details Defined in Data.Time.MonthName Methods (==) :: MonthName -> MonthName -> Bool # (/=) :: MonthName -> MonthName -> Bool #
Ord MonthName Source #
Instance details Defined in Data.Time.MonthName Methods compare :: MonthName -> MonthName -> Ordering # (<) :: MonthName -> MonthName -> Bool # (<=) :: MonthName -> MonthName -> Bool # (>) :: MonthName -> MonthName -> Bool # (>=) :: MonthName -> MonthName -> Bool # max :: MonthName -> MonthName -> MonthName # min :: MonthName -> MonthName -> MonthName #
Read MonthName Source #
Instance details Defined in Data.Time.MonthName Methods readsPrec :: Int -> ReadS MonthName # readList :: ReadS [MonthName] # readPrec :: ReadPrec MonthName # readListPrec :: ReadPrec [MonthName] #
Show MonthName Source #
Instance details Defined in Data.Time.MonthName Methods showsPrec :: Int -> MonthName -> ShowS # show :: MonthName -> String # showList :: [MonthName] -> ShowS #
Generic MonthName Source #
Instance details Defined in Data.Time.MonthName Associated Types type Rep MonthName :: Type -> Type # Methods from :: MonthName -> Rep MonthName x # to :: Rep MonthName x -> MonthName #
Arbitrary MonthName Source #
Instance details Defined in Data.Time.MonthName Methods arbitrary :: Gen MonthName # shrink :: MonthName -> [MonthName] #
Hashable MonthName Source #
Instance details Defined in Data.Time.MonthName Methods hashWithSalt :: Int -> MonthName -> Int # hash :: MonthName -> Int #
ToJSON MonthName Source #
Instance details Defined in Data.Time.MonthName Methods toJSON :: MonthName -> Value # toEncoding :: MonthName -> Encoding # toJSONList :: [MonthName] -> Value # toEncodingList :: [MonthName] -> Encoding #
ToJSONKey MonthName Source #
Instance details Defined in Data.Time.MonthName Methods toJSONKey :: ToJSONKeyFunction MonthName # toJSONKeyList :: ToJSONKeyFunction [MonthName] #
FromJSON MonthName Source #
Instance details Defined in Data.Time.MonthName Methods parseJSON :: Value -> Parser MonthName # parseJSONList :: Value -> Parser [MonthName] #
FromJSONKey MonthName Source #
Instance details Defined in Data.Time.MonthName Methods fromJSONKey :: FromJSONKeyFunction MonthName # fromJSONKeyList :: FromJSONKeyFunction [MonthName] #
NFData MonthName Source #
Instance details Defined in Data.Time.MonthName Methods rnf :: MonthName -> () #
type Rep MonthName Source #
Instance details Defined in Data.Time.MonthName type Rep MonthName = D1 ('MetaData "MonthName" "Data.Time.MonthName" "months-0.2-FLbc3IJcdsp7dwyf9dWRNM" 'False) (((C1 ('MetaCons "January" 'PrefixI 'False) (U1 :: Type -> Type) :+: (C1 ('MetaCons "February" 'PrefixI 'False) (U1 :: Type -> Type) :+: C1 ('MetaCons "March" 'PrefixI 'False) (U1 :: Type -> Type))) :+: (C1 ('MetaCons "April" 'PrefixI 'False) (U1 :: Type -> Type) :+: (C1 ('MetaCons "May" 'PrefixI 'False) (U1 :: Type -> Type) :+: C1 ('MetaCons "June" 'PrefixI 'False) (U1 :: Type -> Type)))) :+: ((C1 ('MetaCons "July" 'PrefixI 'False) (U1 :: Type -> Type) :+: (C1 ('MetaCons "August" 'PrefixI 'False) (U1 :: Type -> Type) :+: C1 ('MetaCons "September" 'PrefixI 'False) (U1 :: Type -> Type))) :+: (C1 ('MetaCons "October" 'PrefixI 'False) (U1 :: Type -> Type) :+: (C1 ('MetaCons "November" 'PrefixI 'False) (U1 :: Type -> Type) :+: C1 ('MetaCons "December" 'PrefixI 'False) (U1 :: Type -> Type)))))

Conversion with Day

dayToYearMonthName :: Day -> (Year, MonthName) Source #

Extract Month from Day

>>> dayToYearMonthName (read "2017-02-03")
(2017,February)

firstDayOfYearMonthName :: (Year, MonthName) -> Day Source #

First day of the month.

>>> firstDayOfYearMonthName (2017, February)
2017-02-01

lastDayOfYearMonthName :: (Year, MonthName) -> Day Source #

Last day of the month

>>> lastDayOfYearMonthName (2017, February)
2017-02-28

>>> lastDayOfYearMonthName (2016, February)
2016-02-29

yearMonthNameInterval :: (Year, MonthName) -> Interval Day Source #

Day interval of month

>>> yearMonthNameInterval (2017, February)
2017-02-01 ... 2017-02-28

Conversions with Text

monthNameToText :: MonthName -> Text Source #

parseMonthName :: Text -> Either String MonthName Source #

yearMonthNameToText :: (Year, MonthName) -> Text Source #

parseYearMonthName :: Text -> Either String (Year, MonthName) Source #