Re: [Jscheme-devel] string-append, '(), #f

[Ken A. <kan...@bb...>]

Yes.  This is another difference between Scheme and JScheme.  We seem to use string-append a lot, so it seemed convenient to turn each argument into its string representation.  It may be unnecessary work, but it simplifies the code you right.  Rather than:

> (string-append "It is now " (.toString (Date.)))
"It is now Mon Jan 06 10:07:41 EST 2003"
> 

You just say:
> (string-append "It is now " (Date.))
"It is now Mon Jan 06 10:10:27 EST 2003"

In fact, we use string-append so much, we made an alternative syntax for it:
> {It is now [(Date.)]}
"It is now Mon Jan 06 10:03:38 EST 2003"
> 
At 11:26 PM 1/5/2003, Geoffrey Knauth wrote:
>I found these anomalies when using string-append with JScheme 4.2.2/5.0:
>
>> (string-append "a" "b" '())
>"ab()"
>> (string-append "a" "b" #f)
>"ab#f"
>
>DrScheme detects the 3rd argument is not a string and reports an error.
>
>Not a show-stopper for me, just something I noticed.
>
>Geoffrey
>
>
>
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