bug#19431: 24.4; Bad handling of RFC2047 encoded headers by 'mail-extract-address-components'

[Lars Ingebrigtsen <larsi@gnus.org>]

Enrico Scholz <enrico.scholz@sigma-chemnitz.de> writes:

> the emacs email framework fails on email addresses containing umlauts.
> E.g. in the following example
>
> --- {{{ snip ---
> ; set a (nearly) real-world To: address; the umlaut '=C3=A4' encoding
> ; was replaced by '=61=65'
> (let* ((address "=?utf-8?Q?B=61=65Br=2C_Klaus?= <test@example.com>")
>        (decoded (rfc2047-decode-string address)))
>   ; show output with encoded umlauts and non-RFC2047 header
>   (print (mail-extract-address-components "\"Baer, Klaus\" <test@example.com>"))
>   (print address t)
>   (print decoded t)
>   ; previous prints were just for debugging purposes; now, the real
>   ; functions will be called...
>   (print (mail-extract-address-components address))
>   (print (mail-extract-address-components decoded)))

Yes, that's a very confusing and not very useful function.  I've now
updated the doc string to point to `mail-header-parse-address', which is
the function that should be used to parse address headers, and does the
right thing also on German addresses.

I don't think it's worth trying to fix the mess that is
`mail-extract-address-components'.

-- 
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   bloggy blog: http://lars.ingebrigtsen.no