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From: Mark Alexander <marka@pobox.com>
To: Elias Norberg <elias@oddbike.se>
Cc: supmua <supmua@googlegroups.com>
Subject: Re: [sup] Calendar integration
In-reply-to: <1460556707-sup-9370@kudzu>
References: <1460556707-sup-9370@kudzu>
Date: Wed, 13 Apr 2016 13:52:29 -0400
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Excerpts from Elias Norberg's message of 2016-04-13 16:14:12 +0200:
> I was wondering if anyone has a neat solution to dealing with .ICS-files?
> Displaying them via mailcap is simple enough - accepting or rejecting a
> meeting not so much.
> 
> How do you deal with stuff like this? Just reply with a simple "I'll be
> there / Won't be there", or something more advanced?

I worked at a company that used the calendar stuff.  Unfortunately, I
didn't find a solution to the problem you're describing.  I see there
is a program called gcalcli, a command line tool for dealing with
Google calendars.  But I'm not sure this would have worked with other
calendar systems.

This probably won't help, but I was able to get the calendar events
to display in sup without mailcap.  Attached is my ~/.sup/hooks/mime-decode.rb
file.

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unless sibling_types.member? "text/plain"
  case content_type
  when "text/html"
    `/usr/bin/w3m -dump -T #{content_type} '#{filename}'`
  when "text/calendar"
    summary =3D "No summary"
    dtstart =3D "No start time"
    dtend =3D "No end time"
    location =3D "No location"
    event =3D false

    File.open(filename) do |f|
      f.each do |line|
	case line
	when /^BEGIN:VEVENT/
	  event =3D true
	when /^END:VEVENT/
	  event =3D false
	when /^SUMMARY[^:]*:(.*)/
	  if event
	     summary =3D $1
	  end
	when /^LOCATION[^:]*:(.*)/
	  if event
	     location =3D $1
	  end
	when /^DTSTART[^:]*:(.*)/
	  if event
	    dtstart =3D DateTime.strptime($1, '%Y%m%dT%H%M%S').ctime
	  end
	when /^DTEND[^:]*:(.*)/
	  if event
	    dtend =3D DateTime.strptime($1, '%Y%m%dT%H%M%S').ctime
	  end
	end
      end
    end

    "Summary:  #{summary}\n" +
    "Start:    #{dtstart}\n" +
    "End:      #{dtend}\n"   +
    "Location: #{location}\n"
  end
end

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