[plt-dev] at-exp and whitespace

From: Matthew Flatt (mflatt at cs.utah.edu)
Date: Fri Feb 27 08:58:23 EST 2009

At Fri, 27 Feb 2009 08:50:46 -0500, Dave Herman wrote:
> As a compromise, would it make sense for the at-exp reader to turn off  
> `read-curly-brace-as-paren' so that wherever an accidentally orphaned  
> curly-brace argument appears, it can produce a more localized error?  
> It's not a perfect solution, but curly braces are pretty rarely used  
> as an S-expression delimiter so it might not be too bad of a compromise.

I think this is a good idea.

Just yesterday, some of us were noting that curly braces never found a
use in S-expressions (unlike square brackets), and the role of curly
braces in Scribble makes them less likely to gain a different role.

Posted on the dev mailing list.