From The Battle for Wesnoth Wiki
The workaround I posted was helpful to check whether a variable is initialized:
[variable] name=to_be_tested equals=$empty [/variable]
(tested with wesnoth 1.2.5)
Interesting it doesn't work with [set_variable]format=.
Meriton 15:49, 15 July 2007 (CEST)
This page was last edited on 15 July 2007, at 13:49.