;z,.<' ' alpha bravo charlie but gives an extra space at the end
R.E. Boss > -----Oorspronkelijk bericht----- > Van: programming-boun...@jsoftware.com [mailto:programming- > boun...@jsoftware.com] Namens Ian Clark > Verzonden: maandag 2 januari 2012 16:35 > Aan: Programming forum > Onderwerp: [Jprogramming] Linking boxed strings with intervening spaces > > Suppose z is boxed strings, eg z=: ;: 'alpha bravo charlie' > > I half-recall there's a neater (single-primitive) way to recover the > string 'alpha bravo charlie' from z than: > > b2o=: [: }. [: ; ' ' ,&.> ] > b2o z > alpha bravo charlie > > but I've forgotten what it is and can't seem to find it in Voc or Dic. > > On the page for "Raze" (;) the Dictionary says archly: > The fit conjunction (;!.f) provides fill specified by the atom f > but AFAICS (;!.' ')z is the same as ;z , viz: 'alphabravocharlie' . > > Nor incidentally is (;) listed as such on the page for "Fit" (!.) . > > I observe however that: > ;:inv z > alpha bravo charlie > > But what's in my mind is a way of interleaving some other letter, or 2 > spaces, or comma-space, etc. > > BTW timer (6!:2) tells me that ;:inv is slower than b2o . > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
