In the "use language declared in the source" language if I click the show sharing checkbox in the details section of the language dialog and run this program:
#lang racket (define x (list 1)) (list x x) Then I see this output: '(#0=(1) #0#) Were you doing something else? (also I think that probably drracket should repect the print-graph parameter is print mode, but I'm not sure) Robby On Wednesday, October 13, 2010, Neil Van Dyke <[email protected]> wrote: > In 5.0.1, how do I make REPL printing in both DrRacket Interactions and the > command-line REPL use the shared structure format? > > In DrRacket, I cannot seem to do this regardless of whether the "Show sharing > in values" is true, and whether "Output Style" is "write" or "print". > >> (print-graph #t) ; just to show that this does not seem to affect the REPL >> (define x (let ((tail '(tail))) `((a ,@tail) (b ,@tail)))) >> x > ((a tail) (b tail)) >> (parameterize ((print-graph #t)) (format "~S" x)) > "((a . #0=(tail)) (b . #0#))" >> > > I want to see the shared structure format, since I have some library code > that uses shared list tails heavily to save space and to shortcut some > searches. > > I believe that PLT 3xx, at least, used shared structure format by default. > > -- > http://www.neilvandyke.org/ > _________________________________________________ > For list-related administrative tasks: > http://lists.racket-lang.org/listinfo/users > _________________________________________________ For list-related administrative tasks: http://lists.racket-lang.org/listinfo/users
