Re: [Zope] <dtml-var x missing> doesn't work?

Not quite. You are tripping a key error here so that won't work. Try:

Sorry to be picky here but, quoting from Table 15 on page 21 of the DTML Guide: missing - Provide a value to be used if the ariable(sic) is missing, rather than raising a KeyError.

<dtml-if "REQUEST.has_key('HTTP_REFERER')"> <dtml-var "REQUEST['HTTP_REFERER']"> </dtml-if>

This is what I ended up doing :-) Is it just me or does it seem silly that: <dtml-var HTTP_REFERER missing='/'> works as expected but <dtml-var "REQUEST.environ['HTTP_REFERER']" missing='/'> doesn't, even though they're logically the same thing? The KeyError should be caught when evaluating the expression as well as the name in dtml-var :( I might chuck this in the collector at some stage... Chris