[1] RFC 1740 - MIME Encapsulation of Macintosh Files - MacMIME, 2021-01-24T11:56:28.000Z, 2021-03-16T08:48:39.721Z https://tools.ietf.org/html/rfc1740

[2]

MacMIME

AppleSingle
AppleDouble

[3] 関連: BinHex

[4] RFC 4450: Getting Rid of the Cruft: Report from an Experiment in Identifying and Reclassifying Obsolete Standards Documents, 2023-12-02T08:22:42.000Z, 2023-12-02T08:29:49.032Z https://www.rfc-editor.org/rfc/rfc4450.html#appendix-A