> > rcf？(;´Д`)
> rfc(;´Д`)

http://en.wikipedia.org/wiki/Rich_Text_Format

It should not be confused with enriched text (mimetype "text/enriched" of RFC 1896) or
its predecessor Rich Text (mimetype "text/richtext" of RFC 1341 and 1521); nor with
IBM's RFT-DCA (Revisable Format Text-Document Content Architecture)
which are completely different specifications.
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参考：2014/01/17(金)23時07分46秒