Vocabulary
interval-sets

Inputs and outputs

specification	a sequence of numbers and pairs of numbers
interval-set	an interval-set

Word description
Creates an interval set based on the specification. Pairs of numbers are interpreted as intervals which include their endpoints, and individual numbers are interpreted to be in the set, in a singleton range.

Definition

USING: interval-sets.private sorting ;

IN: interval-sets

: <interval-set> ( specification -- interval-set )
spec>pairs sort-keys >intervals make-intervals ;