PartialRange is a simple parser that can convert an array of numbers into a string (e.g. from [1,2,3,5] into "1-3,5") or turn a string into an array of numbers (e.g. from "1,2,1,2-3" into [1,2,3]).
I think that I once wrote this code to help me understand if I was missing episodes from an anime. From a list of filenames I would extract the episode numbers and then see if any were missing.
partial_range = PartialRange.new
partial_range << 1
partial_range << 2
partial_range << 3
partial_range << 5
partial_range.to_s
-> "1-3,5"
partial_range.to_a
-> [1,2,3,5]
Create a PartialRange from a string:
partial_range = PartialRange.new("1-5,7-10")
partial_range.to_a
-> [1,2,3,4,5,7,8,9,10]
Create a PartialRange from an array:
partial_range = PartialRange.new([1,3,4,8,9,10])
partial_range.to_s
-> "1,3-4,8-10"
Copyright (c) 2014 Rob Clarke (kumo), released under the MIT license