44 lines
1.1 KiB
Ruby
44 lines
1.1 KiB
Ruby
#
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# num2bool.rb
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#
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module Puppet::Parser::Functions
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newfunction(:num2bool, :type => :rvalue, :doc => <<-EOS
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This function converts a number or a string representation of a number into a
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true boolean. Zero or anything non-numeric becomes false. Numbers higher then 0
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become true.
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EOS
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) do |arguments|
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raise(Puppet::ParseError, "num2bool(): Wrong number of arguments " +
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"given (#{arguments.size} for 1)") if arguments.size != 1
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number = arguments[0]
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case number
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when Numeric
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# Yay, it's a number
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when String
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begin
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number = Float(number)
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rescue ArgumentError => ex
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raise(Puppet::ParseError, "num2bool(): '#{number}' does not look like a number: #{ex.message}")
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end
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else
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begin
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number = number.to_s
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rescue NoMethodError => ex
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raise(Puppet::ParseError, "num2bool(): Unable to parse argument: #{ex.message}")
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end
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end
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# Truncate Floats
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number = number.to_i
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# Return true for any positive number and false otherwise
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return number > 0
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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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