[Radiant] Markaby

[Sean Cribbs]

Have you guys considered Jim Weirich's Builder?  Although a bit more 
wordy than Markaby in terms of code, it allows curly braces and you can 
output unescaped text (i.e. Radius tags, if necessary) using the << 
operator.  Unlike Markaby, however, it would have to be eval'd in the 
filter method.  Here's an example of how you might do it.

require 'builder'
class BuilderFilter < TextFilter::Base
  register 'Builder::XmlMarkup'
  def filter(text)
    x = Builder::XmlMarkup.new :indent => 2
    eval(text)
    x.target!
  end
end

Documentation for this filter would obviously have to include what the 
local variable name is for the XmlMarkup object since Builder 2.0 
requires a target for all of its markup calls.

Cheers,

Sean Cribbs
seancribbs.com
> On 26/07/06, Caylan Van Larson <caylan at mac.com> wrote:
>   
>> What's the possibility of having a markaby filter, or markaby in the
>> layouts?
>>     
>
> I've been experimenting around today trying to get markaby working as
> a filter. I've run into a number of problems though so I'm putting it
> out to the mailing list to see if someone can improve it.
>
> Firstly it seems Ruby syntax can only handle simple radius tags
> without parameters. So a simple tag like
>
> h2{r:date}
>
> works but a tag like
>
> r:link(:url=>"http://localhost/")
>
> does not, although
> r:link do
>   test("link")
> end
>
> does work. Also it doesn't seem to like the {} block delimeters so
>
> r:random {
>   r:option {text("random1")}
>   r:oprion {text("random2")}
> }
>
> won't parse but
>
> r:random do
>   r:option do;text("random1");end
>   r:option do;text("random2");end
> end
>
> works.
>
> Anyway here's the code for the filter I was using. I had to redefine
> parse_object and change the order of filtering and parsing by radius,
> hopefully that doesn't cause problems with other filters.
>
> require 'markaby'
>
> class Behavior::Base
>   def parse_object(object)
>     text = object.content
>     text = object.filter.filter(text) if object.respond_to? :filter_id
>     text = parse(text)
>     text
>   end
> end
>
> class MarkabyFilter < TextFilter::Base
>   register 'Markaby'
>
>   def filter(text)
>      Markaby::Template.new(text).render+
>   end
> end
>
> Farrel
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>   

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