Before and After functions

[dwest]

Sometimes you want to append or prepend something to the parent's content instead of replacing it outright. This is not currently possible with append/prepend because they work only in the parent template. To that end we should add before and after functions that work outside of the normal blocks and are only concatenated after the block is full processed.

For example:

===File A===

Default

===File B===

<?php $after('content')?>
<div>After</div>
<?php $end('content')?>

===File C===

<?php $before('content')?>
<div>Before</div>
 <?php $end('content")?>

<?php $block('content')?>
<div>Override</div>
<?php $end('content')?>

Would produce:

Before

Override

After