`fxmapping-open-interval``fxmap``low``high`procedure`fxmapping-closed-interval``fxmap``low``high`procedure`fxmapping-open-closed-interval``fxmap``low``high`procedure`fxmapping-closed-open-interval``fxmap``low``high`procedure*low*and*high*are both exact integers.Procedures that return a subset of

*fxmap*containing the associations whose keys are contained in the interval from*low*to*high*. The interval may be open, closed, open below and closed above, or open above and closed below.Examples:

(fxmapping->alist (fxmapping-open-interval (fxmapping 0 'a 1 'b 2 'c 3 'd) 1 3)) ⇒ ((2 . c)) (fxmapping->alist (fxmapping-closed-interval (fxmapping 0 'a 1 'b 2 'c 3 'd) 1 3)) ⇒ ((1 . b) (2 . c) (3 . d)) (fxmapping->alist (fxmapping-closed-open-interval (fxmapping 0 'a 1 'b 2 'c 3 'd) 1 3)) ⇒ ((1 . b) (2 . c))