[development] Eliminate hooks entirely in Drupal 6

[Rowan Kerr]

On 23-Jan-07, at 5:21 PM, Earl Miles wrote:
> Part 1: drupal_register_callback

My favourite part of this technique is that it should make Drupal much 
more "deterministic" (?)... You can check your registered callbacks and 
have a much clearer idea of what will happen on any given function call 
instead of having to search through every single module and inc file to 
find something that looks similar to an invoke_all hook call.

And this maps well to the "event listener" type thing used on the 
client site. Careful with all the .something files or you'll turn 
Drupal into Helma ;) While Adrian works harder at turning it into Lisp 
or Smalltak . hehe.

-Rowan