Have a look at planet-fmt in Planet. The docs are in a msword doc file (under browse) Gives you iteration, tabulation, allignment and more.
(apply (fmt "!d*(xd)") syms) or ((fmt "us!d*(xd)") syms) !d : display only if the list is not empty * : repeat until no more elements xd : display a space and one element (...) : compound Jos -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of J. Ian Johnson Sent: jueves, 01 de septiembre de 2011 15:44 To: users Subject: [racket] Splicing format string? I have a list of symbols '(a b c) that I want to be printed "a b c" as part of string I'm formatting. Instead of writing [assume the list is bound to syms] (format "~a" (string-join (map symbol->string syms) " ")) I'd much rather write something like (format "~@a" syms) And have format do this for me. 1) Would other people also like this as part of format strings? 2) Is there a better way to write my first attempt without changing format string? -Ian _________________________________________________ For list-related administrative tasks: http://lists.racket-lang.org/listinfo/users _________________________________________________ For list-related administrative tasks: http://lists.racket-lang.org/listinfo/users
