Re: [Evolution] Use of Scheme in Search Folder filters

[Milan Crha <mcrha redhat com>]

On Sat, 2020-10-10 at 09:38 +0100, David Sumbler wrote:
> Can somebody point me to an explanation of how such Scheme
> expressions in Evolution should be formed, or perhaps show me how
> (and whether) this one can be made to work?

        Hi,
I do not know whether the 'S' in 'S-Expression' means 'Scheme' (I've
been always wondering what that letter stands for, but I was also
always lazy to figure it out), but I'd rather suggest to use the Free
Form Expression. It's similar, but more user friendly, I hope. In any
case, both the GUI and the Free Form Expressions are converted into the
S-Expression, because it's what is used in the background. The semi-
documentation for the Free Form Expression can be found here:
https://bugzilla.gnome.org/show_bug.cgi?id=550796#c10

The S-Expression doesn't have any documentation. I'm not aware of any
at least. Pointing you into the code might not be the best thing, I
believe.

Maybe it would worth to update the user documentation and add there
some Free Form Expression examples. Such always help.

        Bye,
        Milan