bugKawa - Bugs: bug #15623, Passing a Scheme character to Java...

 
 

bug #15623: Passing a Scheme character to Java can fail

Submitter:  None
Submitted:  Sat 04 Feb 2006 11:01:08 PM UTC
   
 
Category:  None Severity:  3 - Normal
Priority:  5 - Normal Item Group:  Unexpected result
Status:  None Privacy:  Public
Assigned to:  None Open/Closed:  Open
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Sat 04 Feb 2006 11:01:08 PM UTC, original submission:  

One would expect the following sequence of forms to set sppos to 6:

(set! jstr (make <java.lang.String> "DOMAIN Some Name"))

(set! sppos (invoke jstr 'indexOf #\space))

but, as written, it fails to find a matching character.

However, replacing #\space by 32 works, correctly returning 6.

It should be fairly easy to work around since char->integer will convert a Scheme character into an integer and a trivial macro or function such as:

(define-syntax javachar
  (syntax-rules ()
    ((javachar schemechar)
      (char->integer schemechar))))

ought to provide reasonable syntactic sugar.

Anonymous

 

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