Re: Rendering HTML Content in Email Messages

[Johan Bockgård]

Randy Yates <yates@ieee.org> writes:

> Can someone please help clear up my confusion on HTML article
> washing? I want to keep HTML washing turned off by default, but if
> I've received an HTML message from someone I trust I want to tell
> gnus to render it. Typing "W h" does not work.
>
> I've read about the gnus-article-wash-html function (which is nil on
> startup for me) but I don't understand the interaction between ti
> and gnus-article-wash-function and other gnus-article-washXYZ
> functions. Help!

      The default is to use the function specified by
      `mm-text-html-renderer' to convert the HTML, but this is
      controlled by the `gnus-article-wash-function' variable [it is
      used instead, if non-nil].

      (info "(gnus)Article Washing")

`mm-text-html-renderer' is used to look up a renderer in
`mm-text-html-washer-alist' (or call directly, if a function). There
are several predefined renderers, including w3 and w3m which use the
functions `gnus-article-wash-html-with-w3' and
`gnus-article-wash-html-with-w3m' respectively (see below).


,----[ C-h v gnus-article-wash-function RET ]
| gnus-article-wash-function's value is nil
| 
| Documentation:
| Function used for converting HTML into text.
| 
| Defined in `gnus-art'.
`----

,----[ C-h v mm-text-html-renderer RET ]
| mm-text-html-renderer's value is w3
| 
| Documentation:
| Render of HTML contents.
| It is one of defined renderer types, or a rendering function.
| The defined renderer types are:
| `w3'   : use Emacs/W3;
| `w3m'  : use emacs-w3m;
| `w3m-standalone': use w3m;
| `links': use links;
| `lynx' : use lynx;
| `html2text' : use html2text;
| nil    : use external viewer.
| 
| You can customize this variable.
| 
| Defined in `mm-decode'.
`----
        
,----[ C-h v mm-text-html-washer-alist RET ]
| mm-text-html-washer-alist's value is 
| ((w3 . gnus-article-wash-html-with-w3)
|  (w3m . gnus-article-wash-html-with-w3m)
|  (w3m-standalone mm-inline-wash-with-stdin nil "w3m" "-dump" "-T" "text/html")
|  (links mm-inline-wash-with-file mm-links-remove-leading-blank "links" 
"-dump" file)
|  (lynx mm-inline-wash-with-stdin nil "lynx" "-dump" "-force_html" "-stdin" 
"-nolist")
|  (html2text html2text))
| 
| Documentation:
| The attributes of washer types for text/html.
| 
| Defined in `mm-view'.
`----

-- 
Johan Bockgård