45 lines
1.3 KiB
Ruby
45 lines
1.3 KiB
Ruby
#
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# bool2num.rb
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#
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module Puppet::Parser::Functions
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newfunction(:bool2num, :type => :rvalue, :doc => <<-EOS
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EOS
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) do |arguments|
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raise(Puppet::ParseError, "bool2num(): 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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klass = value.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, 'bool2num(): Requires either ' +
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'boolean or string to work with')
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end
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if value.is_a?(String)
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# We consider all the yes, no, y, n and so on too ...
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value = case value
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#
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# This is how undef looks like in Puppet ...
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# We yield 0 (or false if you wish) 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, 'bool2num(): Unknown type of boolean given')
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end
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end
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# We have real boolean values as well ...
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result = value ? 1 : 0
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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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