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

Is errortrace annotating the code? 

Robby

At Wed, 01 Mar 2006 01:03:28 +0100, Jens Axel Søgaard wrote:
> Hi all,
> 
> I am attempting to hook up a css mode for DrScheme
> and am missing the piece that makes DrScheme highlight
> errors in the definition window.
> 
> In the parser I use
> 
>    ; css-parser : (-> token) -> sexp
>    (define css-parser
>      (parser
>       (src-pos)
>       ; TODO: wire the error function to the language level
>       (error    (lambda (a name val start end)
>                   (raise-read-error "read-error"
>                                     (file-path)
>                                     (position-line start)
>                                     (position-col start)
>                                     (position-offset start)
>                                     (- (position-offset end)
>                                        (position-offset start)))))
>        ...
> 
> to raise an read-error.
> 
> In tool.ss I have the following on-execute method:
> 
>            (define/public (on-execute settings run-in-user-thread)
>              ; (read-case-sensitive #f)
>              (run-in-user-thread
>               (lambda ()
>                 (error-display-handler
>                  (drscheme:debug:make-debug-error-display-handler
>                    (error-display-handler)))
>                 (void))))
> 
> When I click "Execute" on a file with syntax-error all I get is
> 
>    read-error
> 
> in the interaction window.
> 
> What piece of the puzzle is missing?
> 
> -- 
> Jens Axel Søgaard
> 
> 
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