Re: Where to complain?

[Katsumi Yamaoka <yamaoka@jpl.org>]

>>>>> In <85hd8c78rb.fsf@lola.goethe.zz> David Kastrup wrote:

> Katsumi Yamaoka <yamaoka@jpl.org> writes:

>> I don't know what does it, but such a behavior is performed by
>> the HTML renderer specified in the `mm-text-html-renderer'
>> variable; `w3m', `links' and `lynx' work fine, AFAIK.

> w3m-standalone in my case, which would be the standard setting.  So it
> would appear that the character encoding (which is part of the MIME
> part declaration) is not passed to w3m or something?

> w3m alone used on web pages outside of Emacs appears to work.  Maybe
> something is wrong in mm-view.el?  It would appear that the following
> is responsible for the stuff:

> (defun mm-inline-render-with-stdin (handle post-func cmd &rest args)
>   (let ((source (mm-get-part handle)))
>     (mm-insert-inline
>      handle
>      (mm-with-unibyte-buffer
>        (insert source)
>        (apply 'mm-inline-wash-with-stdin post-func cmd args)
>        (buffer-string)))))

> Now what happens with the unibyte-buffer?  Perhaps the
> mm-inline-wash-with-stdin process filter is not too happy about
> inserting w3m output in utf-8 (the current locale) into a unibyte
> buffer?  Or buffer-string, which likely happens to be unibyte decoded
> into utf-8, then gets interpreted as latin-1, the encoding of the mime
> part?  Or w3m tries interpreting the latin-1 encoded input as utf-8?

I see.  That is just the point.  When w3m is called by way of
emacs-w3m (i.e., mm-text-html-renderer is set to `w3m'),
w3m-input-coding-system and w3m-output-coding-system are used
for exchanging data.

> There seem many ways to get this wrong.  When the locale and language
> environment and part encoding are all latin-1, stuff works.

The locale and the language environment are irrelevant, I think.
We may need to make Gnus provide the following functions:

mm-inline-text-html-render-with-w3m-standalone
gnus-article-wash-html-with-w3m-standalone

However, they will be complicated like emacs-w3m if ones want to
make w3m-standalone work well like emacs-w3m.  Why don't you use
w3m? :)