[pmwiki-users] empty vs nonexistent PTV in pagelist

DaveG pmwiki at solidgone.com
Wed Apr 8 21:54:16 CDT 2009

Peter & Melodye Bowers wrote:
> Is there any way to differentiate between an empty PTV and a non-existent
> PTV in a pagelist?
Not that I've found.
   "-?*" represents either empty or not set.
   "-" represents set not empty

> If not, what suggestions for an appropriate syntax to differentiate?
The syntax above is regex like. However, I like:
   "^*" represents not set (regex like)
   "!*" which I prefer -- seems to represent a negated everything -- 

  ~ ~ Dave

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