Thanks. I actually found what I was looking for. On line 158 of TreeTag.py is the following code: String.commands['tree']=Tree ...which hooks TreeTag into the DTML machinery. This is pretty cool. You could actually build a product that adds an extension to dtml without having to modify any of the document template code. I guess I should have asked what I really wanted to know, which is how to create an object that works with the tree tag without subclassing ObjectManager. I figured it out, though. Think I'll go write a how-to! =) -jfarr ----- Original Message ----- From: Rik Hoekstra <rik.hoekstra@inghist.nl> To: Jonothan Farr <jfarr@real.com>; <zope-dev@zope.org> Sent: Saturday, March 18, 2000 5:04 AM Subject: Re: [Zope-dev] tree tag question

-----Original Message----- From: Jonothan Farr <jfarr@real.com> To: zope-dev@zope.org <zope-dev@zope.org> Date: zaterdag 18 maart 2000 0:09 Subject: [Zope-dev] tree tag question

This is driving me crazy. I can't for the life of me figure out how dtml-tree is hooked into the template machinery.

It looks like the tag is implemented in the class TreeDisplay.TreeTag.Tree.

[RH]Treedisplay is a directory in <zope>\lib\python\

TreeTag.py is the module,

Tree is a class in the module

hth

Rik

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