From: Nathan <njmacinnes@...>
Date: 2008-03-11T11:23:22+09:00
Subject: Re: passing procs around in variables

Yeah, I know. I´m just doing it like that for now, then I´ll put them
all together at the end. Thanks though.
-N

On Mar 10, 12:43 am, Ken Bloom <kbl...@gmail.com> wrote:
> On Sun, 09 Mar 2008 17:48:36 -0500, Nathan wrote:
> > Hi,
> > This might be something really simple, but I'm trying to write a
> > console-based menu for my program. I've done this before in a procedural
> > language, but I decided to try and port what I've done to ruby, because
> > it'll make other parts of my program far easier. My program has a few
> > menus, so it'd be nice to have re-usable code (which the procedural
> > version didn't have much of).
>
> > The best way I've come up with is to pass the method calls which are
> > executed by each menu item as procs, but this requires passing them
> > around between two objects internally. (I haven't completely decided how
> > I'm going to structure the code which passes the procs... I have an
> > idea, but I'll cross that when I come to it)
>
> > Now, the Item class, which each menu item is an object of, doesn't work
> > as expected... take a look here:http://pastie.caboo.se/163781. When I
> > try to call myItem.execute!, it complains "no block given". If I call
> > myItem.execute! { 2 + 1}, then it works, but that's not what I want...
>
> > I've also included the Menu class, just in case anybody has any advice
> > as to how to do the whole thing better.
>
> > Thanks,
> > -Nathan
>
> In addition to what Stefan Lang said about @proc.call, I just wanted to
> point out that there's no need to keep different classes in different
> files. (This isn't Java.)
>
> --Ken
>
> --
> Ken (Chanoch) Bloom. PhD candidate. Linguistic Cognition Laboratory.
> Department of Computer Science. Illinois Institute of Technology.http://www.iit.edu/~kbloom1/