Right you are. What I really want (but haven't said) is the fastest versions of b2o (boxed-to-open-string) and b2f (boxed-to-LF-separated-string), where b2f is b2o with ' ' (-:SP) replaced with LF.
I think I've got them now, thanks to everyone. BTW solutions involving deb aren't general enough, esp for b2f, where the boxed strings may validly contain multiple spaces. On Thu, Sep 6, 2012 at 11:32 PM, Raul Miller <[email protected]> wrote: > I prefer > ;:inv z > > But note that > > deb,' ',.>z > > would work. (J6 users need require'strings' before this can work.) > > FYI, > > -- > Raul > > On Thu, Sep 6, 2012 at 6:21 PM, Ian Clark <[email protected]> wrote: >> Yes, but we need a string. >> You can ravel the 2D array to get a string, viz: >> ,> z >> but it gives you a varying number (0 or more) of separating spaces. >> >> On Thu, Sep 6, 2012 at 10:50 PM, km <[email protected]> wrote: >>> > 'alpha';'bravo';'charlie' >>> alpha >>> bravo >>> charlie >>> >>> I'm resending because the echo from Jsoftware to my iPad was incorrect. >>> Hope this one shows my solution was to open the list of boxes. >>> >>> Sent from my iPad >>> >>> >>> On Sep 6, 2012, at 4:32 PM, km <[email protected]> wrote: >>> >>>>> 'alpha';'bravo';'charlie' >>>> alpha >>>> bravo >>>> charlie >>>> >>>> (shape 3 7) >>>> >>>> Sent from my iPad >>>> >>>> >>>> On Sep 6, 2012, at 11:38 AM, Ian Clark <[email protected]> wrote: >>>> >>>>> Kindergarten class... >>>>> >>>>> I have a list of boxed literals... >>>>> z=: 'alpha' ; 'bravo' ; 'charlie' >>>>> >>>>> I want to flatten it to a literal, but with spaces between. (Variant: >>>>> --with LF's). >>>>> >>>>> Raze (;) does indeed flatten the list... >>>>> ;z >>>>> alphabravocharlie >>>>> >>>>> There's got to be a really neat extended Raze which includes >>>>> separators. But the fastest I've been able to come up with is: >>>>> >>>>> b2o=: }.@((<' ') ;@,. ]) >>>>> b2o z >>>>> alpha bravo charlie >>>>> >>>>> Any advances? >>>>> ---------------------------------------------------------------------- >>>>> For information about J forums see http://www.jsoftware.com/forums.htm >>>> ---------------------------------------------------------------------- >>>> For information about J forums see http://www.jsoftware.com/forums.htm >>> ---------------------------------------------------------------------- >>> For information about J forums see http://www.jsoftware.com/forums.htm >> ---------------------------------------------------------------------- >> For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
