[Zope] assignment problems

[Martijn Pieters]

> > However, you can lever the REQUEST object for this kind of thing:
> .... 
> > Now, 'Size' is found in the REQUEST object, and there the value of
> > 'Size' can be modified.
> 
> Great! Is this in the docs? I found a very short article 
> about dtml-call
> in DTML.7.html, but there's nothing about REQUEST.set... just a single
> example 
> 
> <dtml-call "addDocument('hi','display a greeting','Hello world!')">
> 
> Maybe there are other things I can do with <dtml-call>?

Call does exactly the same as var, only it will ignore any values
returned by the called expression or name. So <dtml-call
standard_html_header> will usually have no effect whatsoever, except for
waisting a few cycles, unless standard_html_header has side like
manipulating the REQUEST object.