+++ /dev/null
-#
-# bool2num.rb
-#
-
-module Puppet::Parser::Functions
- newfunction(:bool2num, :type => :rvalue, :doc => <<-EOS
- Converts a boolean to a number. Converts the values:
- false, f, 0, n, and no to 0
- true, t, 1, y, and yes to 1
- Requires a single boolean or string as an input.
- EOS
- ) do |arguments|
-
- raise(Puppet::ParseError, "bool2num(): Wrong number of arguments " +
- "given (#{arguments.size} for 1)") if arguments.size < 1
-
- value = arguments[0]
- klass = value.class
-
- # We can have either true or false, or string which resembles boolean ...
- unless [FalseClass, TrueClass, String].include?(klass)
- raise(Puppet::ParseError, 'bool2num(): Requires either ' +
- 'boolean or string to work with')
- end
-
- if value.is_a?(String)
- # We consider all the yes, no, y, n and so on too ...
- value = case value
- #
- # This is how undef looks like in Puppet ...
- # We yield 0 (or false if you wish) in this case.
- #
- when /^$/, '' then false # Empty string will be false ...
- when /^(1|t|y|true|yes)$/ then true
- when /^(0|f|n|false|no)$/ then false
- when /^(undef|undefined)$/ then false # This is not likely to happen ...
- else
- raise(Puppet::ParseError, 'bool2num(): Unknown type of boolean given')
- end
- end
-
- # We have real boolean values as well ...
- result = value ? 1 : 0
-
- return result
- end
-end
-
-# vim: set ts=2 sw=2 et :