Re: [Chicken-users] Q:Meaning of [ ] in the bb notes example?

[Felix Winkelmann]

Michael Erdmann wrote:
> Hallo,
>
> what is the meaning of the [ ] in the let statement od the notes example
> in bb extension.
> In docu (sect. 5.2) it is mentioned as an alternative for ( ). But why 
> has been used?

It's just convention. You can use whatever you want. Personally,
I use it to visually distinguish  pairs of bindings, for example:

(let ([foo ...] [bar ...]) ...)

or:

(cond [xy ...] ...)

Since many editors do paren matching, this even helps sometimes
getting the paren-nesting right. Another frequent case:

(let-values ([(a b c) ...] ...) ...)

(here three '('s in a row become somewhat less legible.


cheers,
felix