[Zope] Indirection Revisted

[Martijn Pieters]

At 07:45 23/08/99 , Timothy Grant wrote:
><dtml-var Category> gives me the part of the variable name before the
>underscore.
>
>I tried to get <dtml-var expr="<dtml-var Category> + '_qty'"> to work,
>but that generates syntax errors.

Above line is a nested DTML tag, which doesn't work.

You have to ask the namespace for the variable with the name that consists 
of the string contained in the variable Category, concatenated to the 
string literal '_qty':

   <dtml-var "_[Catagory + '_qty']">

_[...] is the namespace lookup, and you look up variable named by the 
string made up from Category + '_qty'.


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