Copyright	(c) Alexander Hakki
License	BSD3
Maintainer	ahk@ahakki.xyz
Stability	experimental
Portability	portable
Safe Haskell	Safe-Inferred
Language	Haskell2010

Data.Roman

Description

Synopsis

class Roman r where
- fromRoman :: Integral b => r -> b
data RomanSymbol
- = Nulla
- | N
- | I
- | V
- | X
- | L
- | C
- | D
- | M
type RomanNumeral = [RomanSymbol]

Documentation

class Roman r where Source #

A type class for all types that can represent roman numerals

Methods

fromRoman :: Integral b => r -> b Source #

The Class Roman implements a single Method, fromRoman, to convert to an Integral Type

Instances

Instances details

Roman RomanNumeral Source #	fromRoman on a RomanNumeral also returns the expected result, if the Roman Number is not stricly "correct", such as XIIX -> 18.
Instance details Defined in Data.Roman Methods fromRoman :: Integral b => RomanNumeral -> b Source #
Roman RomanSymbol Source #
Instance details Defined in Data.Roman Methods fromRoman :: Integral b => RomanSymbol -> b Source #

data RomanSymbol Source #

RomanSymbols from I to M

Zero is represented as N for the latin word Nulla

Constructors

Nulla
N
I
V
X
L
C
D
M

Instances

Instances details

Enum RomanNumeral Source #
Instance details Defined in Data.Roman Methods succ :: RomanNumeral -> RomanNumeral # pred :: RomanNumeral -> RomanNumeral # toEnum :: Int -> RomanNumeral # fromEnum :: RomanNumeral -> Int # enumFrom :: RomanNumeral -> [RomanNumeral] # enumFromThen :: RomanNumeral -> RomanNumeral -> [RomanNumeral] # enumFromTo :: RomanNumeral -> RomanNumeral -> [RomanNumeral] # enumFromThenTo :: RomanNumeral -> RomanNumeral -> RomanNumeral -> [RomanNumeral] #
Enum RomanSymbol Source #
Instance details Defined in Data.Roman Methods succ :: RomanSymbol -> RomanSymbol # pred :: RomanSymbol -> RomanSymbol # toEnum :: Int -> RomanSymbol # fromEnum :: RomanSymbol -> Int # enumFrom :: RomanSymbol -> [RomanSymbol] # enumFromThen :: RomanSymbol -> RomanSymbol -> [RomanSymbol] # enumFromTo :: RomanSymbol -> RomanSymbol -> [RomanSymbol] # enumFromThenTo :: RomanSymbol -> RomanSymbol -> RomanSymbol -> [RomanSymbol] #
Num RomanNumeral Source #	Be aware that, Roman Numerals can never be negative.
Instance details Defined in Data.Roman Methods (+) :: RomanNumeral -> RomanNumeral -> RomanNumeral # (-) :: RomanNumeral -> RomanNumeral -> RomanNumeral # (*) :: RomanNumeral -> RomanNumeral -> RomanNumeral # negate :: RomanNumeral -> RomanNumeral # abs :: RomanNumeral -> RomanNumeral # signum :: RomanNumeral -> RomanNumeral # fromInteger :: Integer -> RomanNumeral #
Read RomanNumeral Source #	Overlaps instance Read [a] with a specific version, so that "xxi" -> [X, X, I]
Instance details Defined in Data.Roman Methods readsPrec :: Int -> ReadS RomanNumeral # readList :: ReadS [RomanNumeral] # readPrec :: ReadPrec RomanNumeral # readListPrec :: ReadPrec [RomanNumeral] #
Read RomanSymbol Source #	Read is case insensitive
Instance details Defined in Data.Roman Methods readsPrec :: Int -> ReadS RomanSymbol # readList :: ReadS [RomanSymbol] # readPrec :: ReadPrec RomanSymbol # readListPrec :: ReadPrec [RomanSymbol] #
Integral RomanNumeral Source #
Instance details Defined in Data.Roman Methods quot :: RomanNumeral -> RomanNumeral -> RomanNumeral # rem :: RomanNumeral -> RomanNumeral -> RomanNumeral # div :: RomanNumeral -> RomanNumeral -> RomanNumeral # mod :: RomanNumeral -> RomanNumeral -> RomanNumeral # quotRem :: RomanNumeral -> RomanNumeral -> (RomanNumeral, RomanNumeral) # divMod :: RomanNumeral -> RomanNumeral -> (RomanNumeral, RomanNumeral) # toInteger :: RomanNumeral -> Integer #
Real RomanNumeral Source #
Instance details Defined in Data.Roman Methods toRational :: RomanNumeral -> Rational #
Show RomanNumeral Source #
Instance details Defined in Data.Roman Methods showsPrec :: Int -> RomanNumeral -> ShowS # show :: RomanNumeral -> String # showList :: [RomanNumeral] -> ShowS #
Show RomanSymbol Source #
Instance details Defined in Data.Roman Methods showsPrec :: Int -> RomanSymbol -> ShowS # show :: RomanSymbol -> String # showList :: [RomanSymbol] -> ShowS #
Eq RomanSymbol Source #
Instance details Defined in Data.Roman Methods (==) :: RomanSymbol -> RomanSymbol -> Bool # (/=) :: RomanSymbol -> RomanSymbol -> Bool #
Ord RomanNumeral Source #
Instance details Defined in Data.Roman Methods compare :: RomanNumeral -> RomanNumeral -> Ordering # (<) :: RomanNumeral -> RomanNumeral -> Bool # (<=) :: RomanNumeral -> RomanNumeral -> Bool # (>) :: RomanNumeral -> RomanNumeral -> Bool # (>=) :: RomanNumeral -> RomanNumeral -> Bool # max :: RomanNumeral -> RomanNumeral -> RomanNumeral # min :: RomanNumeral -> RomanNumeral -> RomanNumeral #
Ord RomanSymbol Source #
Instance details Defined in Data.Roman Methods compare :: RomanSymbol -> RomanSymbol -> Ordering # (<) :: RomanSymbol -> RomanSymbol -> Bool # (<=) :: RomanSymbol -> RomanSymbol -> Bool # (>) :: RomanSymbol -> RomanSymbol -> Bool # (>=) :: RomanSymbol -> RomanSymbol -> Bool # max :: RomanSymbol -> RomanSymbol -> RomanSymbol # min :: RomanSymbol -> RomanSymbol -> RomanSymbol #
Roman RomanNumeral Source #	fromRoman on a RomanNumeral also returns the expected result, if the Roman Number is not stricly "correct", such as XIIX -> 18.
Instance details Defined in Data.Roman Methods fromRoman :: Integral b => RomanNumeral -> b Source #
Roman RomanSymbol Source #
Instance details Defined in Data.Roman Methods fromRoman :: Integral b => RomanSymbol -> b Source #

type RomanNumeral = [RomanSymbol] Source #

Roman Numerals are represented as Lists of RomanSymbols