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#
# zip.rb
#
module Puppet::Parser::Functions
newfunction(:zip, :type => :rvalue, :doc => <<-EOS
Takes one element from first array and merges corresponding elements from second array. This generates a sequence of n-element arrays, where n is one more than the count of arguments.
*Example:*
zip(['1','2','3'],['4','5','6'])
Would result in:
["1", "4"], ["2", "5"], ["3", "6"]
EOS
) do |arguments|
# Technically we support three arguments but only first is mandatory ...
raise(Puppet::ParseError, "zip(): Wrong number of arguments " +
"given (#{arguments.size} for 2)") if arguments.size < 2
a = arguments[0]
b = arguments[1]
unless a.is_a?(Array) and b.is_a?(Array)
raise(Puppet::ParseError, 'zip(): Requires array to work with')
end
flatten = function_str2bool([arguments[2]]) if arguments[2]
result = a.zip(b)
result = flatten ? result.flatten : result
return result
end
end
# vim: set ts=2 sw=2 et :
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