[plt-scheme] Reporting syntax-error to a DrScheme tool

From: Robby Findler (robby at cs.uchicago.edu)
Date: Wed Mar 1 07:52:46 EST 2006

At Wed, 01 Mar 2006 13:09:49 +0100, Jens Axel Søgaard wrote:
> I solved the puzzle by looking at Shriram's Algol60 tool.

FWIW, I believe Matthew implemented that ...

> To make things easy I copied the approach, which used a cfg-parser
> in stead of the normal parser-tool parser. While doing this I think
> I have found a bug - I am just not sure who to blame.
> I used an
>     (require (lib "cfg-parser" "algol60"))
> to reuse Shriram's cfg-parser. After installing my tool the
> I get the following error when starting DrScheme:
>    Error invoking tool: #<path:c:\...\algol60>
>    standard-module-name-resolver: module previously loaded with suffix
>    #"", cannot load with suffix #".ss":
>    #<path:c:\programmer\plt\collects\algol60\cfg-parser.ss>
> Sure enough in the language selection dialog the Algol60! language
> is now missing, while my Stylesheet language works fine.

I believe you should have written:

     (require (lib "cfg-parser.ss" "algol60"))

If the algol60 tool had been loaded before your tool, the reverse would
have happened (your tool would have failed).


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