34 lines
721 B
Ruby
34 lines
721 B
Ruby
module REXML
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class SyncEnumerator
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include Enumerable
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# Creates a new SyncEnumerator which enumerates rows of given
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# Enumerable objects.
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def initialize(*enums)
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@gens = enums
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@biggest = @gens[0]
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@gens.each {|x| @biggest = x if x.size > @biggest.size }
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end
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# Returns the number of enumerated Enumerable objects, i.e. the size
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# of each row.
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def size
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@gens.size
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end
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# Returns the number of enumerated Enumerable objects, i.e. the size
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# of each row.
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def length
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@gens.length
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end
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# Enumerates rows of the Enumerable objects.
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def each
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@biggest.zip( *@gens ) {|a|
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yield(*a[1..-1])
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}
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self
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end
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end
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end
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