[plt-scheme] How to get the source of procedure?

Would it be accurate to say that this only works when the modules are
explicitly imported?  For instance, I have a little piece of code that
relies on the fact that the MrEd functionality is already included in the
Graphical language; right clicking on for instance the "send" procedure
doesn't offer to jump to a definition.  I seem to have to have an explicit
importation of class.ss to do that.  Is there any way to get this 
functionality for any built-in function in any context?

On Tue, 16 May 2006, [ISO-8859-1] Jens Axel Søgaard wrote:

> Jaime Vargas wrote:
> > Thanks all for the replies.  I am interested on source code  inspection 
> > from the point of view of understanding how a particular  procedure was 
> > implemented. I understand than on relying on the  implementation of 
> > procedure may breaks the contract. However, I think  that inspecting is 
> > good for learning.
> 
> If you are looking for the source of a library function DrScheme
> is your friend. Consider:
> 
>    (module foo mzscheme
>      (require (lib "md5.scm"))
>      (define bar (md5 1 2)))
> 
> To find the source of md5 hit "Check Syntax", then
> right click at md5 and choose "Jump to definition".
> 
> If you prefer a web-interface to the source see
>     <http://ja.soegaard.net/planet/html/>
> 
> Of particular interest is the collection "mzlib".
> 
> -- 
> Jens Axel Søgaard
> 
> 
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