[Zope] ZCatalog indexing help request

[Kamal Gill]

I need to know how to control what objects are indexed by ZCatalog 
based on a custom property I have added to files and folders I do not 
want indexed by ZCatalog.  I have added a boolean property named 
'noindex' and have set its value as TRUE for files and folders I do not 
want indexed by ZCatalog.

Now, what I need to know is what to enter in the expr: 
|________________________| textarea form field of the find objects tab 
of my ZCatalog object in order to index all page templates *except* 
those that contain a 'noindex' property set to TRUE.

Any advice on how to implement (and possibly automate?) this is much 
appreciated.

  - Kamal