I see this is also listed as a bug in Ximian's bugzilla

http://bugzilla.ximian.com/show_bug.cgi?id=36354

On Wed, 2003-07-16 at 00:57, Edward Muller wrote:
> Does anyone have any examples of 'expressions'. I have need of them
> (i.e. VFOLDERS are next to useless for me until I understand for to
> create expressions) and having some more evolution specific
> documentation and some samples would be VERY VERY helpful.
> 
> Thanks,
> 
> On Thu, 2003-06-26 at 01:11, Thomas Frayne wrote:
> > Periodically, users request a capability for boolean searches in
> > Evolution.  The response is usually: we won't implement it, because you
> > can do the same thing with expressions.
> > 
> > The next question is: Where is the syntax for expressions documented? 
> > And the answer is: Nowhere but in the source code.  However,
> > http://www.ximian.com/support/manuals/evolution_10/usage-mail-organize-vfolders.html
> > states: Expression - For programmers only: match a message according to
> > an expression you write in the Scheme language, used to define vFolders
> > in Ximian Evolution
> > 
> > I have seen documentation of the Scheme language:
> > http://www.swiss.ai.mit.edu/~jaffer/r5rs_toc.html
> > describes Scheme.
> > 
> > http://www.cs.utexas.edu/users/wilson/schintro/schintro_toc.html
> > has a Scheme tutorial.
> > 
> > It would be helpful to have a few examples of Scheme expressions which
> > can be used in a vfolder definition, with a descriptions of what they
> > find.  Failing that, where are expressions implemented in the Evolution
> > source?
> > 
> > I think that requiring Gnome Desktop users to know programming in a
> > little known language is not the way to attract users of Microsoft
> > Windows to Linux. At least, regular expressions should be allowed.  Far
> > better would be to allow adding AND, OR, NOT after each criterion so
> > that unsophisticated users can easily construct flexible searches.
> > 
> > _______________________________________________
> > evolution maillist  -  [EMAIL PROTECTED]
> > http://lists.ximian.com/mailman/listinfo/evolution
-- 
Edward Muller

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