rfc2231-decode-encoded-string

rfc2231-decode-encoded-string is a compiled Lisp function in `rfc2231.el'.

(rfc2231-decode-encoded-string STRING)

Decode an RFC2231-encoded string.
These look like:
"us-ascii'en-us'This%20is%20%2A%2A%2Afun%2A%2A%2A",
"us-ascii''This%20is%20%2A%2A%2Afun%2A%2A%2A",
"'en-us'This%20is%20%2A%2A%2Afun%2A%2A%2A",
"''This%20is%20%2A%2A%2Afun%2A%2A%2A", or
"This is ***fun***".