[Zope] Syntax

[J. Cone]

At 14:24 12/07/01 +0200, Paul Zwarts wrote:
<snip>
><dtml-var "sequence-item-5"> does not work because it syubtracts item from
>sequence and five from item. Instead use:
>
><dtml-var "_['sequence-item']-5">

Is this refering to an earlier item in the sequence?

Is it the same as _.sequence-item-5 ?

Is there a declaration of _ anywhere that I can look at?

If I have a name clash (two Z SQL Method's return ID), how to I look up the
stack of namespaces?

Yours in abject confusion,
J. Cone