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#
# bool2num.rb
#
module Puppet::Parser::Functions
newfunction(:bool2num, :type => :rvalue, :doc => <<-EOS
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
if not [FalseClass, String, TrueClass].include?(klass)
raise(Puppet::ParseError, 'bool2num(): Requires either an ' +
'boolean or string to work with')
end
if value.is_a?(String)
result = case value
#
# This is how undef looks like in Puppet ...
# We yield 0 (or false if you wish) in this case.
#
when /^$/, '' then 0
when /^(1|t|y|true|yes)$/ then 1
when /^(0|f|n|false|no)$/ then 0
# This is not likely to happen ...
when /^(undef|undefined)$/ then 0
else
raise(Puppet::ParseError, 'bool2num(): Unknown type of boolean given')
end
else
# We have real boolean values as well ...
result = value ? 1 : 0
end
return result
end
end
# vim: set ts=2 sw=2 et :
|
