AND-ing searches

[ivanm]

When using the Tag Browser and either Ctrl- or Shift-clicking multiple items, this joins the various queries using the OR boolean operator.

Is there any way of doing so using AND instead?

e.g. selecting two authors to find books they wrote together; or selecting a series and a saved search for "ondevice:false" to find which books aren't on your reader.

I note that the example provided in the user manual for the tag browser suggests it does work this way (using AND), though from what I can tell in reality you'll get back books that deal with Europe or history.

[chaley]

Change how the search queries are composed using the Alter Tag Browser button. "Any" is "or" and "All" is "and".

[ivanm]

*face palm* I can't believe I didn't see that.

Is it possible to have different behaviour based upon a ctrl/shift click? (e.g. ctrl-click is AND, shift-click is OR)

[chaley]

Originally Posted by ivanm

Is it possible to have different behaviour based upon a ctrl/shift click? (e.g. ctrl-click is AND, shift-click is OR)

Not without some significant coding in calibre.

Also, I question the utility given and/or precedence (and is higher than or). It isn't easy to visualize how a series of and/or clauses will evaluate, which is why it is probably a good idea to use parentheses to make things explicit. One could help out by parsing the expression then regenerating it with parens in the right places, but this adds even more complexity to the changes.

I suggest you construct the series of tests, then manually change the incorrect operators and possibly add parentheses.