[pmwiki-users] Markup or method to increment/decrement a PTV ("integer") variable?

[Benoit Dutilleul]

Hello everybody,

Does it exists? How could it be done?
Kind regards,

Benoit

-- 
Wanderer, your footsteps are the road, and nothing more; wanderer,
there is no road, the road is made by walking. By walking one makes
the road, and upon glancing behind one sees the path that never will
be trod again. Wanderer, there is no road-- Only wakes upon the sea.
-- Antonio Machado