mail-decode-encoded-word-string
mail-decode-encoded-word-string is an alias for `rfc2047-decode-string' in `mail-parse.el
'.
(mail-decode-encoded-word-string STRING &optional ADDRESS-MIME)
Decode MIME-encoded STRING and return the result.
If ADDRESS-MIME is non-nil, strip backslashes which precede characters
other than `"' and `\' in quoted strings.