5fce8a7f54
This would allow for creating hashes on the fly from two arrays. Signed-off-by: Krzysztof Wilczynski <krzysztof.wilczynski@linux.com>
56 lines
1.6 KiB
Ruby
56 lines
1.6 KiB
Ruby
#
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# zip.rb
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#
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module Puppet::Parser::Functions
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newfunction(:zip, :type => :rvalue, :doc => <<-EOS
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EOS
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) do |arguments|
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# Technically we support three arguments but only first is mandatory ...
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raise(Puppet::ParseError, "zip(): Wrong number of arguments " +
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"given (#{arguments.size} for 2)") if arguments.size < 2
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a = arguments[0]
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b = arguments[1]
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unless a.is_a?(Array) and b.is_a?(Array)
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raise(Puppet::ParseError, 'zip(): Requires array to work with')
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end
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flatten = arguments[2] if arguments[2]
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if flatten
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klass = flatten.class
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# We can have either true or false, or string which resembles boolean ...
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unless [FalseClass, TrueClass, String].include?(klass)
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raise(Puppet::ParseError, 'zip(): Requires either ' +
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'boolean or string to work with')
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end
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if flatten.is_a?(String)
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# We consider all the yes, no, y, n and so on too ...
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flatten = case flatten
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#
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# This is how undef looks like in Puppet ...
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# We yield false in this case.
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#
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when /^$/, '' then false # Empty string will be false ...
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when /^(1|t|y|true|yes)$/ then true
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when /^(0|f|n|false|no)$/ then false
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when /^(undef|undefined)$/ then false # This is not likely to happen ...
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else
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raise(Puppet::ParseError, 'zip(): Unknown type of boolean given')
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end
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end
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end
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result = a.zip(b)
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result = flatten ? result.flatten : result
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return result
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end
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end
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# vim: set ts=2 sw=2 et :
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