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#
# str2bool.rb
#
module Puppet::Parser::Functions
newfunction(:str2bool, :type => :rvalue, :doc => <<-EOS
EOS
) do |arguments|
raise(Puppet::ParseError, "str2bool(): Wrong number of arguments " +
"given (#{arguments.size} for 1)") if arguments.size < 1
string = arguments[0]
unless string.is_a?(String)
raise(Puppet::ParseError, 'str2bool(): Requires either ' +
'string to work with')
end
# We consider all the yes, no, y, n and so on too ...
result = case string
#
# This is how undef looks like in Puppet ...
# We yield false 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, 'str2bool(): Unknown type of boolean given')
end
return result
end
end
# vim: set ts=2 sw=2 et :
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