[html-formfu] RFC: nested block tags

[Carl Franks]

On 04/07/07, Daisuke Maki <daisuke at endeworks.jp> wrote:
>
> One of the things that my HTML coders keep telling me about formfu is
> that they want to create "block" elements that can be nested. A simple
> example is something like
>
>   - type: block
>     tag: div
>     elements:
>       - type: block
>         tag: span
>         content: foo
>
> that would produce <div><span>foo</span></div> taking this further, it
> would be nice if you can specify a text block of sorts:
>
>   - type: block
>     tag: div
>     elements:
>       - type: plaintext
>         content: foo
>       - type: block
>         tag: span
>         content: bar
>       - type: plaintext
>         content: baz
>
> Which would produce <div>foo<span>bar</span>baz</div>
> This would mainly be used to generate HTML content that goes within a
> form, like warnings or notes about the form inputs.
>
> Does this sound reasonable?

I've changed the templates so that if the block's tag() is undef, the
start and end tags aren't rendered.

I've also added a new 'src' element which is a subclass of block.pm,
and it simply undef's the tag() for you.
You can use it's inherited content(), content_xml() and elements()
methods as usual.

So your example could be written like so:

 - type: block
   tag: div
   elements:
     - type: src
       content: foo
     - type: block
       tag: span
       content: bar
     - type: src
       content: baz

Cheers,
Carl