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Pascal Bourguignon  
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 More options May 5 2006, 10:54 pm
Newsgroups: comp.lang.scheme
From: Pascal Bourguignon <p...@informatimago.com>
Date: Sat, 06 May 2006 04:54:56 +0200
Local: Fri, May 5 2006 10:54 pm
Subject: Re: Square brackets?
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"netytan" <nety...@gmail.com> writes:
> Possibly a silly question but I've seen square brackets being used in
> several scheme sources, but they're not in the R5RS standard - I
> don't think. They're not supported by all Scheme implementations
> anyway.

> Are there any perhaps in some other standard or are they already
> standard but optional?

Some implementations accept them with the same meaning as parentheses.
They're usable interchangeably, but must still match:
([]) is valid, but ([)] is not.

Some people have this silly idea that counting and matching
parentheses is important and like to spend hours on it...

I prefer to use only parentheses and let emacs do the indentation and
parenthesis checking for me.

--
__Pascal Bourguignon__                     http://www.informatimago.com/

What is this talk of 'release'? Klingons do not make software 'releases'.
Our software 'escapes' leaving a bloody trail of designers and quality
assurance people in it's wake.


 
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