Sha256: ce7d99733b84e73fd89b69dbba287423aaaf3e1a57701d33866c35b1a9966d68
Contents?: true
Size: 1.21 KB
Versions: 16
Compression:
Stored size: 1.21 KB
Contents
#--
# Author:: Tyler Rick
# Copyright:: Copyright (c) 2007 QualitySmith, Inc.
# License:: Ruby License
# Submit to Facets?:: Yes.
#++
require 'rubygems'
require 'facets/core/kernel/silence_warnings'
class Array
# Expands (calls +to_a+ on) all Ranges contained in this array, replacing the range with the list of *elements* that the range represents.
#
# This is especially useful when you want to have "discontiguous ranges" like [1..3, 5..7]...
#
# [1..3, 5..7].expand_ranges
# => [1, 2, 3, 5, 6, 7]
#
def expand_ranges
new_array = []
each do |item|
silence_warnings do # Object.to_a: warning: default `to_a' will be obsolete
if item.respond_to?(:to_a)
new_array.concat item.to_a
else
new_array.concat [item]
end
end
end
new_array
end
end
# _____ _
# |_ _|__ ___| |_
# | |/ _ \/ __| __|
# | | __/\__ \ |_
# |_|\___||___/\__|
#
=begin test
require 'test/unit'
class TheTest < Test::Unit::TestCase
def test_1
assert_equal [1, 2, 3], [1, 2, 3].expand_ranges
end
def test_2
assert_equal [1, 2, 3], [1..3].expand_ranges
assert_equal [1, 2, 3, 5, 6, 7], [1..3, 5..7].expand_ranges
end
end
=end
Version data entries
16 entries across 16 versions & 2 rubygems