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//opt/alt/ruby21/lib64/ruby/2.1.0/rexml/syncenumerator.rb
module REXML class SyncEnumerator include Enumerable # Creates a new SyncEnumerator which enumerates rows of given # Enumerable objects. def initialize(*enums) @gens = enums @length = @gens.collect {|x| x.size }.max end # Returns the number of enumerated Enumerable objects, i.e. the size # of each row. def size @gens.size end # Returns the number of enumerated Enumerable objects, i.e. the size # of each row. def length @gens.length end # Enumerates rows of the Enumerable objects. def each @length.times {|i| yield @gens.collect {|x| x[i]} } self end end end
