* 仕様書

[REFS[
- [6] ([TIME[2016-01-13 19:26:33 +09:00]]) <http://www.unicode.org/repos/cldr/tags/latest/common/bcp47/calendar.xml>
]REFS]

* 関連

[1] [[計算機システムにおける暦の指定]]も参照。

* メモ


[FIG(quote)[
[FIGCAPTION[
[5] [CITE@en[RFC 7529 - Non-Gregorian Recurrence Rules in the Internet Calendaring and Scheduling Core Object Specification (iCalendar)]]
( ([TIME[2016-06-19 08:27:48 +09:00]]))
<https://tools.ietf.org/html/rfc7529#section-4>
]FIGCAPTION]

> 
>    ; recur-rule-part is extended from RFC 5545
>    recur-rule-part =/   ("RSCALE" "=" rscale)
>                       / ("SKIP" "=" skip)
>    rscale          = (iana-token  ; A CLDR-registered calendar system
>                                   ; name.
>                     / x-name)     ; A non-standard, experimental
>                                   ; calendar system name.
>                                   ; Names are case insensitive,
>                                   ; but uppercase values are preferred.

]FIG]