The current cond does allow "else" behavior. It's done using a final test that evaluates to something non-false and non-nil, such as the keyword :else.
That said, the proposed arc/newlisp style if macro would be more tidy. Jeff ----- Original Message ----- From: James Reeves <[EMAIL PROTECTED]> Sent: Friday 10 October 2008 03:59 To: Clojure <clojure@googlegroups.com> Cc: Subject: Re: "if" small syntax change proposal > > On Oct 9, 10:29 pm, Dmitri P <[EMAIL PROTECTED]> wrote: > > Allow cond-like specification of expression pairs and allow odd number > > of expressions. Let odd expressions in last position serve as default > > return value. There will be no impact on previous reading/writing of > > "if". Stolen from Paul Graham's Arc. > > > > (defmacro myif > > ([x] x) > > ([x] (if x y)) > > ([x y & z] (if x y `(myif [EMAIL PROTECTED])))) > > This seems like a sound idea. It eliminates the need to have a > separate cond macro, and supports an ending "else" statement, which I > believe is something cond lacks. > > - James > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/clojure?hl=en -~----------~----~----~----~------~----~------~--~---
