[plt-scheme] syntax/module-reader and module specs

Jay McCarthy wrote at 05/04/2009 08:50 AM:
> Checkout what I do in the PLAI language:
>
> (module reader syntax/module-reader
>   #:language `(planet ,(this-package-version-symbol))
>   (require (planet cce/scheme:4:1/planet)))
>
> http://planet.plt-scheme.org/package-source/plai/plai.plt/1/1/lang/reader.ss
>   

Thanks, Jay.  I ended up doing this, plus falling back to a normal "lib" 
module-spec form when it was not a PLaneT package, which is exactly what 
I wanted.

http://planet.plt-scheme.org/package-source/neil/sicp.plt/1/5/lang/reader.ss

I also had to check the PLaneT package version in several places in 
"sicp-tool.ss", both to get the module-spec correct, and to avoid 
conflicts in the "get-language-numbers" when I have multiple versions 
available due to "PLTCOLLECTS", PLaneT cache, and PLaneT development links:

http://planet.plt-scheme.org/package-source/neil/sicp.plt/1/5/sicp-tool.ss

Interestingly enough, DrScheme is smart enough not to show the "SICP 
(Non-PLaneT)" entry if there is a PLaneT development link to that 
collection directory.

A side benefit of avoiding the "get-language-numbers" conflict error 
from DrScheme is that I can select exactly the version I want from my 
Choose Language menu while this package is in development:

http://www.neilvandyke.org/weblog/2009/05/#2009-05-05

-- 
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