I mentioned the bug in the Y combinator thread. This is a simple demonstration,
(<(<,':'),<(<(,'0');1),<(,'0');1 0$'') (1 : 'u u`:6`:6 y') <(<,':'),<(<(,'0');1),<(,'0');1 0$'' (1 : 'u u`:6`:6 y') <(<,':'),<(<(,'0');1),<(,'0');1 0$'' (1 : 'u u`:6`:6 y') |syntax error | <(<,':'),<(<(,'0');1),<(,'0');1 0$''(1 :'u u`:6`:6 y') JVERSION Engine: j807/j64/windows Release: commercial/2018-10-05T10:39:42 Library: 8.07.18 Qt IDE: 1.7.9s/5.9.6 Platform: Win 64 Installer: J807 install InstallPath: c:/program files/j64-807 Contact: www.jsoftware.com ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm