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Size: 722 Bytes
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Contents
require 'facet/range/umbrella'
class Range
# Uses the Range#umbrella method to determine
# if another Range is _anywhere_ within this Range.
#
# (1..3).within?(0..4) #=> true
#
def within?(rng)
case rng.umbrella(self)
when [0,0], [-1,0], [0,-1], [-1,-1]
return true
else
return false
end
end
end
# _____ _
# |_ _|__ ___| |_
# | |/ _ \/ __| __|
# | | __/\__ \ |_
# |_|\___||___/\__|
#
=begin test
require 'test/unit'
class TCRange < Test::Unit::TestCase
def test_within?
assert( (4..5).within?(3..6) )
assert( (3..6).within?(3..6) )
assert(! (2..5).within?(3..6) )
assert(! (5..7).within?(3..6) )
end
end
=end
Version data entries
22 entries across 22 versions & 1 rubygems