[Zope] VERY Confused!

[Oliver Bleutgen]

> That is some pretty funky code, Seb, but it worked! Would you *please*
> explain what you did? Especially the syntax with all the wild punctuation!
> The idea of this, my first external method, was to keep_it_simple. So much
> for that. Here's the line that worked:

> <span class="top"><img src="images/top" width=<dtml-var
> "sizeCalc(1008,sizer(_.None,_))"> height=<dtml-var
> "sizeCalc(82,sizer(_.None,_))">></span>

Ben,

you'll find an explanation in your online-help,under
Zope Help->Api Reference->DTML Method
see the block about __call__.
Another source (highly recommended!) would be
the book Dieter Maurer is writing about zope at
http://www.handshake.de/~dieter/pyprojects/zope/book/book.html

esp chapter 3, paragraph 4.4.

cheers,
oliver