[Zope] - Food for thought

[Jim Fulton]

Paul Everitt wrote:
> 
> Scott wrote:
> > I'm not quite sure that there really is a solution for this
> > problem, so I
> > didn't add it to the bug list, but it is something to think about.
> 
> My, but you've stated it diplomatically :^)
> 
> > Can ayone think of a good way to keep DTML from infinetly looping?
> 
> Jim added changes a little over a year ago to keep an object from
> calling itself. 

Actually, I added a check to see if the call depth was excessive.
There are cases where it might be perfectly reasonable for an 
object to call itself.

(snip)

> > Create a folder and place a document method in it
> > and call it index_html. Place this line in the index html file.
> >
> > <!--#tree-->
> > <!--#var index_html-->
> > <!--#/tree-->
> 
> Hmmm, now that looks like, if not a bug, certainly an insect of some
> species. 

Which I cannot reproduce.

> If you did:
> 
> <!--#var index_html-->
> 
> then Zope would see that you were trying to insert yourself into
> yourself. 

Actually, it would eventually see that the call depth
had become excessive.

> Takes the taste out of stuffing, I might add.  But it appears
> the tree tag foils Zope's attempts to keep your insides firmly
> segregated from you outsides.

The tree tag seems (to me) to be doing the right thing, 
albeit slowly.
 
Jim

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