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annotate modules/stdlib/lib/puppet/parser/functions/num2bool.rb @ 0:956e484adc12

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Initial public release of Puppet configs
author IBBoard <dev@ibboard.co.uk>
date Sat, 16 Aug 2014 19:47:38 +0000
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children c42fb28cff86
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956e484adc12 Initial public release of Puppet configs
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1 #
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2 # num2bool.rb
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3 #
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4
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5 module Puppet::Parser::Functions
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6 newfunction(:num2bool, :type => :rvalue, :doc => <<-EOS
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7 This function converts a number or a string representation of a number into a
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8 true boolean. Zero or anything non-numeric becomes false. Numbers higher then 0
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9 become true.
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10 EOS
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11 ) do |arguments|
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12
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13 raise(Puppet::ParseError, "num2bool(): Wrong number of arguments " +
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14 "given (#{arguments.size} for 1)") if arguments.size != 1
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15
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16 number = arguments[0]
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17
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18 case number
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19 when Numeric
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20 # Yay, it's a number
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21 when String
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22 begin
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23 number = Float(number)
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24 rescue ArgumentError => ex
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25 raise(Puppet::ParseError, "num2bool(): '#{number}' does not look like a number: #{ex.message}")
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26 end
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27 else
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28 begin
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29 number = number.to_s
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30 rescue NoMethodError => ex
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31 raise(Puppet::ParseError, "num2bool(): Unable to parse argument: #{ex.message}")
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32 end
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33 end
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34
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35 # Truncate Floats
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36 number = number.to_i
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37
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38 # Return true for any positive number and false otherwise
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39 return number > 0
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40 end
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41 end
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42
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43 # vim: set ts=2 sw=2 et :