Re: How to extract the scheme parser from the source?

Hi Xing,

You can find Scheme 48's (very nice) reader in scheme/rts/read.scm.

Theoretically, you can even choose which reader to use from Scheme 48's module
system using the undocumented macro DEFINE-READER. I've never used it,
though. Does someone have experience with DEFINE-READER?

Best,
Will

On Tue, Jul 30, 2013 at 12:44:44PM +0200, Xing Su wrote:
> Hi everyone!
> 
> I'm trying to implement a enhanced r5rs scheme system. Cause the 
> enhancement is small, say, only a new data type and some operations on 
> it will be added, working on a existing scheme implementation fits me 
> better than working from scratch and I've chosen scheme48 as my basis.
> 
> The new datatype will bring new syntax, so the first step is making the 
> scheme48's parser recognize the new syntax. I have not read through the 
> source code of scheme48 before and I want a quick start.
> 
> My questions are:
> 1. Is scheme48's scheme parser written in Scheme or C?
> 2. Which file in the source tree should I concentrate on if I want to 
> add a new syntax?
> 
> Any help is appreciated!
>