32 lines
705 B
Ruby
32 lines
705 B
Ruby
#
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# empty.rb
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#
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module Puppet::Parser::Functions
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newfunction(:empty, :type => :rvalue, :doc => <<-EOS
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Returns true if the variable is empty.
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EOS
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) do |arguments|
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raise(Puppet::ParseError, "empty(): Wrong number of arguments " +
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"given (#{arguments.size} for 1)") if arguments.size < 1
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value = arguments[0]
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unless value.is_a?(Array) || value.is_a?(Hash) || value.is_a?(String) || value.is_a?(Numeric)
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raise(Puppet::ParseError, 'empty(): Requires either ' +
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'array, hash, string or integer to work with')
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end
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if value.is_a?(Numeric)
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return false
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else
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result = value.empty?
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return result
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end
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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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