PS: I think there is a bug concerning "different sentence":
basex "'base.x' contains text 'base x' same sentence"
false
basex "'base.x' contains text 'base x' different sentence"
false
After some intents, I decided to stick with the current solution, as I believe it’s formally correct (albeit counter-intuitive). The specification merely indicates that:
A scope selection selects matches which satisfy the operand full-text selection and for which the matched tokens and phrases are contained in the same scope or in different scopes.
” [1]
It does not elaborate on what should happen when a phrase spans multiple scopes (sentences, paragraphs), and I didn’t manage to define concise rules that provide consistent results without considering various edge cases.
If your use case allows you to ignore the difference between token and phrase matches, it’s advisable to use the following syntax:
let $input := 'base.x'
let $tokens := ft:tokenize('base x')
return $input contains text { $tokens } all different sentence
Hope this helps,
Christian