Hi Iain,

Thanks again! I added the following code

require 'shellwords' 
unless sibling_types.member? "text/plain" 
    case content_type 
    when "text/html" 
        `/usr/bin/w3m -dump -T #{content_type} #{Shellwords.escape 
filename}` 
    end 
end

in a new hook ~/.sup/hooks/mime-decode.rb

Let's see how it works.

Best regards, 
Robert

On Thursday, 26 November 2020 at 16:31:09 UTC-6 ipv2...@parris.org wrote:

> Hi Robert,
>
> Excerpts from Robert Winkler's message of 2020-11-19 08:14:45 -0800:
> > many people send their mails in HTML format only. Currently, I open them 
> > in an external browser. But seeing them inline would be nice.
> > Is there a way how to do this?
>
> A mime-decode hook could accomplish this.
>
> See:
> <
> https://github.com/sup-heliotrope/sup/wiki/Viewing-Attachments#decoding-attachments
> >.
>
> You would need w3m installed, and to create the file
> ~/.sup/hooks/mime-decode.rb containing contents as above.
>
> Another alternative (but which wouldn't display the HTML inline) is to
> create a mailcap file ~/.mailcap containing:
>
> text/html; /usr/bin/w3m -T text/html %s; needsterminal; description=HTML 
> Text; nametemplate=%s.html
>
> With this alternative, pressing enter on a .html file would display it
> in w3m, instead of launching a desktop GUI browser.
>
> Kind regards,
> Iain
>