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.
> 
> _______________________________________________
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