Puppet Function: any2bool
- Defined in:
- puppet/modules/stdlib/lib/puppet/parser/functions/any2bool.rb
- Function type:
- Ruby 3.x API
Overview
This converts 'anything' to a boolean. In practise it does the following:
-
Strings such as Y,y,1,T,t,TRUE,yes,'true' will return true
-
Strings such as 0,F,f,N,n,FALSE,no,'false' will return false
-
Booleans will just return their original value
-
Number (or a string representation of a number) > 0 will return true, otherwise false
-
undef will return false
-
Anything else will return true
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# File 'puppet/modules/stdlib/lib/puppet/parser/functions/any2bool.rb', line 6 newfunction(:any2bool, :type => :rvalue, :doc => <<-EOS This converts 'anything' to a boolean. In practise it does the following: * Strings such as Y,y,1,T,t,TRUE,yes,'true' will return true * Strings such as 0,F,f,N,n,FALSE,no,'false' will return false * Booleans will just return their original value * Number (or a string representation of a number) > 0 will return true, otherwise false * undef will return false * Anything else will return true EOS ) do |arguments| raise(Puppet::ParseError, "any2bool(): Wrong number of arguments " + "given (#{arguments.size} for 1)") if arguments.size < 1 # If argument is already Boolean, return it if !!arguments[0] == arguments[0] return arguments[0] end arg = arguments[0] if arg == nil return false end if arg == :undef return false end valid_float = !!Float(arg) rescue false if arg.is_a?(Numeric) return function_num2bool( [ arguments[0] ] ) end if arg.is_a?(String) if valid_float return function_num2bool( [ arguments[0] ] ) else return function_str2bool( [ arguments[0] ] ) end end return true end |