From: Adam Van Den Hoven <mail@...>
Date: 2005-09-27T07:57:38+09:00
Subject: Re: Embedded Ruby and Tag Libs

That's excellent.

Now "all" we need is a parser to convert

<av_table> ...</av_table>

into


av_table do

...

end


On 26-Sep-05, at 3:39 PM, Devin Mullins wrote:

> Devin Mullins wrote:
>
>
>> Hi, Adam,
>>
>> (I, for instance, am not a fan of passing around _erbout.)
>>
>
> I cleaned up the syntax, btw, with a dependency on my favorite  
> Rails support class:
>
> require 'rubygems'
> require 'binding_of_caller'
>
> class AvTable
>  def initialize(out)
>    @out = out; @side = :odd
>  end
>  def av_trow
>    @out << %Q{<tr class="#@side">}
>    yield
>    @out << "</tr>"
>    @side = (@side == :odd) ? :even : :odd
>  end
> end
>
> def av_table(&blk)
>  Binding.of_caller do |b|
>    out = eval '_erbout', b
>    out << "<table>"
>    AvTable.new(out).instance_eval &blk
>    out << "</table>"
>  end
> end
>
> ERB.new( <<RHTML ).result.display
> <% av_table do %>
>  <% av_trow do %><td>...</td><% end %>
>  <% av_trow do %><td>...</td><% end %>
>  <% av_trow do %><td>...</td><% end %>
>  <% av_trow do %><td>...</td><% end %>
>  <% av_trow do %><td>...</td><% end %>
> <% end %>
> RHTML
>
> __END__
>
> And, of course, you can replace do ... end with { ... } if you prefer.
>
> Yeah, you might need/want a different templating framework than yet  
> exists for Ruby. I dunno. I hope somebody else responds who has  
> experience in some of the other templating systems, 'cause I'm  
> pretty much clueless. :)
>
> Devin
>
>
>