modularize sieve extentions

[brong]

From: Rob Siemborski
Bugzilla-Id: 1807
Version: 2.2.x
Owner: Ken Murchison

[brong]

From: Rob Siemborski

The current sieve implementation is all over the place in how extentions and the
core is implemented. It'd be great if there could be some common API for
plugin-type modules (even if they are staticly linked), that makes adding
extentions easy.

This would include a bytecode/interpretation interface for each test/action
extention.

...there may not be a general way to do this for all extentions...

[brong]

From: Larry Greenfield

i started an implementation of this a long time ago. i'll try to dig this up and
attach something that at least shows the outline of what i was thinking.

[brong]

From: Ken Murchison

Larry, did you ever find what you had started?

[elliefm]

@ksmurchison, what's our care factor on this? Shelve it for someday, or just close it? Or has it already been addressed sometime in the last 13 years?

[ksmurchison]

Probably shelve it for now. It certainly is non-trivial to add extensions and making this easier would be beneficial.

[jamescassell]

I'd love to do it "some day," but I'm about 120% booked these days...