[Zpt] Re: tal:define-ed variables?

Evan Simpson evan@digicool.com
Fri, 9 Mar 2001 10:19:06 -0600


From: "Martijn Pieters" <mj@digicool.com>
> One final nit: I cannot use tal:condition to test for the existence of a
> name, only if an existing name reolves to true.

I just checked in a new expression type "exists", which we discussed briefly
on the zpt list last week.  It has the same syntax as path expressions, but
returns 1 if the path resolves and 0 if it doesn't.

Cheers,

Evan @ TX