Thanks Stefan,
I toyed around with that idea a bit but, at this point, the code is SO
much clearer/cleaner in the 'initialize' define that I think it will
become my preferred method of doing this type of thing and I couldn't
quite get it to work with what I wanted to do since I really just
want:
some_type { 'meaningless_name':
foo => 'stuff',
bar => 'other stuff',
baz => 'more stuff'
}
BUT, bar needs to have a default value (doesn't appear to be supported
by title_patterns) and foo, bar, and baz, all have to be collectively
unique within the type declarations.
Thanks,
Trevor
On Mon, Sep 10, 2012 at 11:57 AM, Stefan Schulte
<[email protected]> wrote:
> On Mon, Sep 10, 2012 at 10:07:14AM -0400, Trevor Vaughan wrote:
>> All,
>>
>> Is it possible to use default values in a composite namevar?
>>
>> I'm having a heck of a time making it work properly.
>>
>> I tried:
>>
>> def self.title_patterns
>> [
>> [
>> /^(.*)$/,
>> [
>> [:path, lambda{|x| x }],
>> [:function, lambda{|x| x }]
>> ]
>> ]
>> ]
>> end
>>
>
> You have to define two title_patterns. If you have one title pattern
> (that may set :path to nil and :function to "foo") it won't work.
>
> I once tried to write a /etc/service provider (#5660) and wanted to have
> the name (e.g. "domain") and protocol (e.g. "udp") to be namevars and to
> have tcp as the default protocol. I looked at my title pattern and
> noticed this comment:
>
> def self.title_patterns
> [
> # we have two title_patterns "name" and "name:protocol". We won't use
> # one pattern (that will eventually set :protocol to nil) because we
> # want to use a default value for :protocol. And that does only work
> # if :protocol is not put in the parameter hash while initialising
> [
> /^(.*?)\/(tcp|udp)$/, # Set name and protocol
> [
> # We don't need a lot of post-parsing
> [ :name, lambda{|x| x} ],
> [ :protocol, lambda{ |x| x.intern unless x.nil? } ]
> ]
> ],
> [
> /^(.*)$/,
> [
> [ :name, lambda{|x| x} ]
> ]
> ]
> ]
> end
>
> I hope this helps.
>
> -Stefan
>
>
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--
Trevor Vaughan
Vice President, Onyx Point, Inc
(410) 541-6699
[email protected]
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