The argument to retract-string is a fully-parseable fact, including
the parentheses; also note that str-cat doesn't put spaces in between
its arguments. So if the fact is supposed to look like

  (www.yahoo.com 80)

then you want to do

  (retract-string (str-cat "(" (?ht getHost) " " (?ht getPort) ")"))


I think Richard Patten wrote:
> 
> Hello everybody,
>   How do I use retract-String in a situation like this
> 
>   (retract-string "(str-cat (call ?ht getHost) (call ?ht getPort))")
> 
> What I actually want to do is to retract the string resulting from the 
> statement 
> 
> (str-cat (call ?ht getHost) (call ?ht getPort))
> 
> thanks
> Richard.
> 
> 


---------------------------------------------------------
Ernest Friedman-Hill  
Distributed Systems Research        Phone: (925) 294-2154
Sandia National Labs                FAX:   (925) 294-2234
Org. 8920, MS 9012                  [EMAIL PROTECTED]
PO Box 969                  http://herzberg.ca.sandia.gov
Livermore, CA 94550

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