[Radiant] Container tag with default values for nested tags

[Sean Cribbs]

Casper,

Call parse, passing the text you want to parse:

hash[:normal] ||= parse('<li><r:link /></li>')

Sean

Casper Fabricius wrote:
> I'm developing a tag inspired by the way <r:navigation /> works; by 
> using nested tags to let the user specify how he wants to render a 
> given collection.
>
> The user could write:
> <r:collection_tag>
>     <r:normal><b><r:link></b></r:normal>
> </r:collection_tag>
>
> - and the tag uses this nested tag by doing:
>     hash = tag.locals.collection_tag = {}
>     tag.expand
>
> - and then later:
>     hash[:normal].call
>
> - to render the contents of the nested tag.
>
> However, I want the user to also be able to write just:
> <r:collection_tag />
>
> - and the tag will populate hash[:normal] with a default value of, 
> say, <r:link />.
>
> However, I don't know how to create a default value for a nested tag, 
> least not when it contains other Radius tags that need to be parsed in 
> the context of each iteration of the collection.
>
> I have tried assigning default values with code such as:
>     hash[:normal]   ||= '<li><r:link /></li>'
>
> - or:
>     hash[:normal]   ||= Proc.new {'<li><r:link /></li>'}
>
> - but the first is just a string, and does not respond to the #call 
> method, and the second is just a proc, and do not in fact render 
> <r:link /> in the context, it just returns the string unparsed.
>
> I know of several examples on using default values for tag attributes, 
> but not for nested tags. Any hints, ideas, examples?
>
> Cheers,
> Casper Fabricius
> http://casperfabricius.com
>
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