Re: Override charset in <meta> tag for K H

[Katsumi Yamaoka <yamaoka@jpl.org>]

>>>>> Martin Stjernholm wrote:
> When an html mail is viewed externally with K H
> (gnus-article-browse-html-article), gnus-article-browse-html-parts might
> sometimes forcefully encode it to utf-8 in the temporary file. However,
> if the html already contains a <meta> with a different charset, it won't
> be changed (as is the documented behavior for mm-add-meta-html-tag). The
> result is that the browser views the utf-8 encoded article with the
> original charset.

Maybe the best is always to use the meta charset for encoding
decoded contents if it is available and is the one that Emacs
knows (recently I made emacs-w3m's shimbun do so).  However, it
doesn't look so easy to achieve in Gnus.

> I haven't dug deep enough in gnus-article-browse-html-parts to
> understand why it sometimes changes the charset, but I assume it is with
> good reason.

I neither have reason at least nor recall why I left the existing
meta tag.

> Anyway, if the html is recoded to a different charset then
> clearly the charset in the <meta> tag should be updated too. The
> attached patch fixes this in the code paths where it's forced to utf-8.

> Note that there are at least two more paths where the article goes
> through mm-encode-coding-string. Since I haven't grasped those, this
> patch doesn't touch them. The same problem might exist there too.

How about making `mm-add-meta-html-tag' always replace the existing
meta tag?  I don't imagine it causes any harm.

Regards,