It seems that parse can’t parse (some) valid expressions. Forexample…q)1 2,/:341 2 31 2 4q)parse “1 2,/:34”/: ,1 23 4q)1 2,/::341 3 1 42 3 2 4q)parse “1 2,/::34”'“1 2,/::3 4”
what’s your version? the banner is helpful
it’s working fine for me
KDB+ 2.5 2009.08.15 Copyright (C) 1993-2009 Kx Systems
m64/ 2(2)core 2048MB …
q)parse “1 2,/:3”
(/:;,)
1 2
3