[NTG-context] Test for existence of a Ctx buffer by Lua

Hello, how to test by Lua whether a Ctx buffer exists? --- \startbuffer[A] Aaa aaa \stopbuffer \starttext \getbuffer[A] Test %\getbuffer[NonExisting] Vvv \stoptext --- To get something like 'context.buffers.A' -> no-nil and 'context.buffers.NonExisting' -> nil? Best regards, Lukas -- Ing. Lukáš Procházka [mailto:LPr@pontex.cz] Pontex s. r. o. [mailto:pontex@pontex.cz] [http://www.pontex.cz] Bezová 1658 147 14 Praha 4 Tel: +420 244 062 238 Fax: +420 244 461 038