[Evolution] creating a new filter description in "vfoldertypes.xml"

[Rick Berger <rberger sympatico ca>]

I want a filter for searching on the "Subject" or "Body" and I want to
just select it from the menu. I able to create a second filter menu
entry for filtering on body by adding a copy of the one there and
changing a few labels.  The only problem is write code. Is there a
description anywhere on how to write the code? 

-- 
Rick Berger <rberger sympatico ca>