[Larceny-users] Larceny-users Digest, Vol 66, Issue 1

[Werner Heigl]

I ran into a similar issue last week. I did find that R5RS mode has some of this functionality. It also has the useful 'system' procedure.

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> On Jun 26, 2016, at 11:00 AM, larceny-users-request at lists.ccs.neu.edu wrote:
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> Today's Topics:
> 
>   1. Request: string-port? predicate (KenD)
> 
> 
> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Sat, 25 Jun 2016 16:47:24 -0700
> From: KenD <Ken.Dickey at Whidbey.com>
> To: larceny-users at lists.ccs.neu.edu
> Subject: [Larceny-users] Request: string-port? predicate
> Message-ID: <20160625164724.a52e128551ae523f424d0655 at Whidbey.com>
> Content-Type: text/plain; charset=US-ASCII
> 
> I would like to implement a function which returns the "contents" of a port as a string.
> 
> It would be useful to test an output-port to see if get-output-string can be applied.
> 
> [larceny in -r7rs bahaves:]
> 
>> (import (primitives string-output-port?))
> 
>> string-output-port?
> Error: unhandled condition:
> ...
>    message : "?: undefined global variable: string-output-port? \n"
> 
>> (import (primitives string-port?))
> 
>> string-port?
> 
> Error: unhandled condition:
> ...
>    message : "?: undefined global variable: string-port? \n"
> 
> It would also be useful to know the byte-length of a file, and deal with directory and file entries..
> 
> Thanks much,
> -KenD
> 
> 
> 
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> End of Larceny-users Digest, Vol 66, Issue 1
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