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

Data.Roman

Description

Synopsis

Documentation

class Roman r where Source #

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

Minimal complete definition

fromRoman

Methods

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

Instances

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

data RomanSymbol Source #

RomanSymbols from I to M

Zero is represented as the latin word Nulla

Constructors

Nulla
I
V
X
L
C
D
M

Instances

Enum RomanSymbol Source #
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] #
Eq RomanSymbol Source #
Methods (==) :: RomanSymbol -> RomanSymbol -> Bool # (/=) :: RomanSymbol -> RomanSymbol -> Bool #
Num RomanList Source #	Unlike single Roman Symbols, lists of them can implement Num in all cases. However, Roman Numerals can never be negative.
Methods (+) :: RomanList -> RomanList -> RomanList # (-) :: RomanList -> RomanList -> RomanList # (*) :: RomanList -> RomanList -> RomanList # negate :: RomanList -> RomanList # abs :: RomanList -> RomanList # signum :: RomanList -> RomanList # fromInteger :: Integer -> RomanList #
Num RomanSymbol Source #	Roman Symbols implement Num. This has some issues, as the result of operations such as I + I can not be represented as a single Roman Numeral. Use RomanList instead.
Methods (+) :: RomanSymbol -> RomanSymbol -> RomanSymbol # (-) :: RomanSymbol -> RomanSymbol -> RomanSymbol # (*) :: RomanSymbol -> RomanSymbol -> RomanSymbol # negate :: RomanSymbol -> RomanSymbol # abs :: RomanSymbol -> RomanSymbol # signum :: RomanSymbol -> RomanSymbol # fromInteger :: Integer -> RomanSymbol #
Ord RomanSymbol Source #
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 #
Read RomanSymbol Source #	Read is case insensitive
Methods readsPrec :: Int -> ReadS RomanSymbol # readList :: ReadS [RomanSymbol] # readPrec :: ReadPrec RomanSymbol # readListPrec :: ReadPrec [RomanSymbol] #
Show RomanSymbol Source #
Methods showsPrec :: Int -> RomanSymbol -> ShowS # show :: RomanSymbol -> String # showList :: [RomanSymbol] -> ShowS #
Roman RomanList Source #	fromRoman on a RomanList also returns the expected result, if the Roman Number is not stricly "correct", such as XIIX -> 18.
Methods fromRoman :: Integral b => RomanList -> b Source #
Roman RomanSymbol Source #
Methods fromRoman :: Integral b => RomanSymbol -> b Source #

type RomanList = [RomanSymbol] Source #