list-link - how to filter based on more than one tag (boolean)

[blosscat]

You can use a filtered list-links to return a list of tagged tiddlers.

The syntax to return a list of tiddlers tagged with apples is:

<<list-links filter:"[tag[apples]]">>

What is the syntax to return a list of tiddlers tagged with apples AND pie?

[Mark S.]

[tag[apples]]+[tag[pie]]

[Mat]

Or just  "[tag[apples]tag[pie]]"

<:-)

[blosscat]

Thank you, both! In time I'm sure I'll be wishing I could exclude a tag among several. For extra credit, what would the syntax be for apples NOT pie?

[Jon]

I think that would be:

[tag[apples]!tag[pie]]

Regards

Jon

[blosscat]

Hmm, an exclamation point (!) doesn't work as a NOT operator for me, but a hyphen (-) does.

[tag[apples]-tag[pie]]

[Jon]

That's the standard format eg.[tag[Vegetarian]!tag[soup]serving[4]] as given in the docs.

Have you introduced another variable, perhaps a space?

[Mark S.]

Hmm, you need to show your work.

[tag[apples]-tag[pie]]

gives the empty set for me, which is what I would expect. The hyphen only works BETWEEN filter runs.

Inside of a filter run, I would expect that TW would interpret "-tag" as it's own (non-existent) field with a (non-existent) value of "pie". That would give the empty set.