[pmwiki-users] Great pagelist question...

[Ralph Zeller]

On 08/30/06 06pm, Patrick R. Michaud wrote:
-clipped-
> At least my current vision of things, having colons in the
> markup text (as above) doesn't cause anything different to happen
> to the page it's written in.  Everything remains exactly as
> before.
> 
> Instead, it's when the page variable is used (as in {$:XYZ})
> that the magic happens -- at *that* point a page's markup is
> scanned looking for an XYZ: field to fill it.  But the page
> itself is unchanged.

Another admittedly-gratuitous feature that I would like to see is some
rudimentary form of doing math with page variables.  Or would it be
better just to use embedded PHP code somehow?  When I set up the 
example at FASTData/ProgrammingDocumentation, I noticed a similarity to
an invoice form.

(example markup)

:a: 3
:b: 2
:c: cats
:d: (:math {$:a} + {$:b} :)

Oh no, we have {$:d} {$:c}!
----
(resulting page)

Oh no, we have 5 cats!