Bugs item #408126, was updated on 2001-03-12 19:44
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Category: scheme-48
Group: None
>Status: Closed
>Priority: 2
Submitted By: Brian D. Carlstrom (bdc)
Assigned to: Olin Shivers (olin-shivers)
>Summary: "-i" is number not symbol
Initial Comment:
C:\>scsh
Scsh 0.5.3
> (run (ls -i))
Error: Can only stringify strings, symbols, and
integers.
0-1i
256
>
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>Comment By: Olin Shivers (olin-shivers)
Date: 2001-03-20 15:40
Message:
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True, this sux. But it's R5RS. I don't feel it's worth it to
introduce
even more lexical breakage than we already have with
case-sensitive
symbol reading. So I'm bagging this.
What would be nice would be to allow the programmer/user to
specify
different text->sexp syntaxes, via a clause in the module
language
affecting how files in the (files ...) clauses were parsed.
Then we could
allow people to do it either way.
-Olin
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Comment By: Brian D. Carlstrom (bdc)
Date: 2001-03-12 19:44
Message:
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From: Steven Jenkins <sjenkins@ms.com>
To: "Brian D. Carlstrom" <bdc@ai.mit.edu>
Cc: Leif Nixon <nixon@softlab.se>, scsh-
news@martigny.ai.mit.edu
Subject: Re: Bug? Whats wrong with the symbol -i?
Date: Fri, 25 Apr 1997 18:40:17 -0400
This, of course, is because you have innums turned on..
>Leif Nixon writes:
> > I seem to have stumbled across another bug.
>
>We get this behavior from scheme48. the reader thinks -i
is an imaginary
>number.
>
>Scsh 0.5
>> '-1
>-1
>> '-i
>0-1i
>> (string->symbol "-i")
>'-i
>>
Steven L. Jenkins
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