[plt-scheme] read-special

From: Matthias Felleisen (matthias at ccs.neu.edu)
Date: Sat Jul 18 19:58:06 EDT 2009

On Jul 18, 2009, at 4:16 PM, Jordan Johnson wrote:

> Hi all,
> I've been looking at readable-snip<%> and the manual page for snip 
> %, which instructions "To define a class of snips that read  
> specially with open-input-text-editor", and wondering:  when is  
> this used, and is there a more precise definition of "special"  
> that's appropriate here?

The image library for HtDP languages uses this stuff. I have been  
almost done with a matrix library based on the same idea for, oh, two  
years now.

-- Matthias

> (I'm guessing from number-snip.ss and scheme.ss in framework/ 
> private/ that it's used for creating expressions when the  
> containing editor is parsed into an AST, but, well, that's a guess.)
> Thanks,
> Jordan
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