One set of parentheses in your expression was unnecessary: wrap=: DELIM&([ , ,~) :.(}.&.|.@}.)
That said, you might consider alternative phrasings. For example: wrap=: DELIM&(, , [) :.(}.@}:) I hope this helps, -- Raul On Tue, Oct 12, 2021 at 10:39 AM Hauke Rehr <[email protected]> wrote: > > I also have uses for it but I’m very unexperienced in using > that resurrected modifier language. > In a simplified version of an example I have, > how is the obverse part written without that much paren noise? > > wrap =: DELIM&([ , ,~) :. (}.((&.|.)@)) > > > Am 05.10.21 um 00:05 schrieb Henry Rich: > > > > 2. I found the production (A C)->((x A) C x) useful enough in my work > > that I gave it a name, the adverbial hook. > > -- > ---------------------- > mail written using NEO > neo-layout.org > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
