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#
# union.rb
#
module Puppet::Parser::Functions
newfunction(:union, :type => :rvalue, :doc => <<-EOS
This function returns a union of two arrays.
*Examples:*
union(["a","b","c"],["b","c","d"])
Would return: ["a","b","c","d"]
EOS
) do |arguments|
# Two arguments are required
raise(Puppet::ParseError, "union(): Wrong number of arguments " +
"given (#{arguments.size} for 2)") if arguments.size != 2
first = arguments[0]
second = arguments[1]
unless first.is_a?(Array) && second.is_a?(Array)
raise(Puppet::ParseError, 'union(): Requires 2 arrays')
end
result = first | second
return result
end
end
# vim: set ts=2 sw=2 et :
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