最終更新:2015-04-19 (日) 04:47:41 (3303d)
言語コード
- RFC 5646? (BCP 47) - Tags for Identifying Languages (2009)
- RFC 4646? - Tags for Identifying Languages
- RFC 4647? - Matching of Language Tags
- RFC 3066 - Tags for the Identification of Languages (廃止)
- RFC 1766 - Tags for the Identification of Languages (廃止)