[plt-scheme] Paren Paralysis Sufferers Unite

From: Christopher Coleman (mellowfish at gmail.com)
Date: Fri Oct 16 16:31:51 EDT 2009

These tricks are great, I use them all the time in my coding even
though I've been at it for a while now.  Its just so much easier to
think line by line instead of trying to keep track of which set of
parens I am in on a single line.

Also, as a tutor I teach my students the same concept of paren pairing
and filling with {} in c-style languages.

On Fri, Oct 16, 2009 at 1:04 PM, David Storrs <david.storrs at gmail.com> wrote:
> On Fri, Oct 16, 2009 at 3:55 PM, Carl Eastlund <carl.eastlund at gmail.com> wrote:
>> That, and use a Scheme-conscious editor like DrScheme (or Emacs or vi,
>> if you're familiar).
> Carl beat me to it on this one.
> Two more tricks you can do to simplify your life:
> 1) Always write parens in pairs, then fill in what goes inside them.
> 2) Add newlines to make it clearer what goes with what.  This isn't
> the "done thing" in Scheme, but it's a useful tool while you're
> learning.  So:
> (define (foo a b (c 7))
>  (let (
>          (x a)
>        )
>    (begin
>      (display a b c)
>     )
> )) ; let and define
> A decent editor will handle the alignment for you.
> --Dks
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