https://github.com/titsuki/raku-math-roman

A roman numerals converter
https://github.com/titsuki/raku-math-roman

raku roman-numerals

Last synced: 10 days ago
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A roman numerals converter

• Host: GitHub
• URL: https://github.com/titsuki/raku-math-roman
• Owner: titsuki
• License: artistic-2.0
• Created: 2020-09-09T08:06:26.000Z (over 4 years ago)
• Default Branch: master
• Last Pushed: 2020-09-09T13:00:51.000Z (over 4 years ago)
• Last Synced: 2024-11-05T21:50:20.569Z (about 2 months ago)
• Topics: raku, roman-numerals
• Homepage:
• Size: 6.84 KB
• Stars: 2
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • Changelog: Changes
  • License: LICENSE

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README

        
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NAME

====

Math::Roman - A roman numerals converter

SYNOPSIS

========

```raku

use Math::Roman;

10R.say; # X

1996R.say; # MCMXCVI

(1000R + 996R)R.say; # MCMXCVI

(Math::Roman.new: "MCMXCVI").as-arabic.say; # 1996

```

DESCRIPTION

===========

Math::Roman is a roman numerals converter

CONSTRUCTOR

-----------

Defined as:

    multi method new(Str $roman) { self.bless(value => to-arabic($roman)) }

    multi method new(Int $arabic) { self.bless(value => $arabic) }

    method Bridge { $!value }

    sub postfix: is export { Math::Roman.new: $^value };

Creates a `Math::Roman` instance internally and returns it as an integer or a str corresponding with the context. Postfix `R` provides a syntactic sugar for converting arabic numerals into roman numerals (e.g., `10R` returns `X`).

METHODS

-------

### as-arabic

Defined as:

    method as-arabic(--> Int)

Returns the instance as an arabic numeral.

SUBS

----

### to-roman

Defined as:

    sub to-roman(Int $n where $n >= 0 --> Str) is export

Returns the roman numeral form of the integer `$n`.

### to-arabic

Defined as:

    sub to-arabic(Str $r, $pos = 0 --> Int) is export

Returns the arabic numeral form of the roman numeral `$r`.

AUTHOR

======

Itsuki Toyota 

COPYRIGHT AND LICENSE

=====================

Copyright 2020 Itsuki Toyota

This library is free software; you can redistribute it and/or modify it under the Artistic License 2.0.