55 lines
1.2 KiB
Ruby
55 lines
1.2 KiB
Ruby
#
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# any2bool.rb
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#
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module Puppet::Parser::Functions
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newfunction(:any2bool, :type => :rvalue, :doc => <<-EOS
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This converts 'anything' to a boolean. In practise it does the following:
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* Strings such as Y,y,1,T,t,TRUE,yes,'true' will return true
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* Strings such as 0,F,f,N,n,FALSE,no,'false' will return false
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* Booleans will just return their original value
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* Number (or a string representation of a number) > 0 will return true, otherwise false
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* undef will return false
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* Anything else will return true
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EOS
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) do |arguments|
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raise(Puppet::ParseError, "any2bool(): Wrong number of arguments " +
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"given (#{arguments.size} for 1)") if arguments.size < 1
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# If argument is already Boolean, return it
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if !!arguments[0] == arguments[0]
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return arguments[0]
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end
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arg = arguments[0]
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if arg == nil
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return false
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end
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if arg == :undef
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return false
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end
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valid_float = !!Float(arg) rescue false
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if arg.is_a?(Numeric)
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return function_num2bool( [ arguments[0] ] )
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end
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if arg.is_a?(String)
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if valid_float
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return function_num2bool( [ arguments[0] ] )
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else
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return function_str2bool( [ arguments[0] ] )
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end
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end
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return true
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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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