Hi Olivier, Richard

The subtleties of the action of the list filter are as Richard has inferred:

If it is negated, it acts as a filter, removing any of the currently
selected titles that are present in the list field.

If it is not negated, it acts as a selector, replacing the currently
selected list with the content of the list field.

The filter operators include both filters (like "is") and selectors (like
"all").

> Why is there a way to AND the tag-filter with NOT the list but there
isn't a way to AND it with the list.

You can do it the other way around:

[list[]tag[mytag]]

But it is undoubtedly an oversight.

> Also, I don't really understand why it would be useful to replace the
whole list as part of a filter expression.

One would usually have the list filter operator as the first operator in a
run, using it to select the tiddlers to be filtered by subsequent operators.

Best wishes

Jeremy.




On Sun, Nov 23, 2014 at 11:13 AM, Richard Smith <
[email protected]> wrote:

> I read that - but it doesn't make sense when you look at the behaviour of
> the negated example.
>
> Why is there a way to AND the tag-filter with NOT the list but there isn't
> a way to AND it with the list.
>
> Also, I don't really understand why it would be useful to replace the
> whole list as part of a filter expression.
>
> Also, I wasn't trying to solve a particular problem, but to contribute to
> a discussion, in response to Olivier's post, which would help me to better
> understand the filter syntax.
>
> Also, the way you ask "why do you expect that when..." is quite rude and
> I've noticed you doing this to people repeatedly. I'd rather you just
> didn't answer, if you're going to talk to me like I'm an idiot, to be
> honest.
>
> Regards,
> Richard
>
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-- 
Jeremy Ruston
mailto:[email protected]

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