Re: How to find a procedure given a symbol or string

[dmahler@xxxxxxxxxx]

On Thu, 29 Jul 1999, Brandon Ibach wrote:

> Quoting dmahler@xxxxxxxxxx <dmahler@xxxxxxxxxx>:
> > What you need is eval,
> > (define (string->procedure name)
> > 	(eval (string->symbol name)))
> > 
> > then you can do
> >    ((string->procedure name) arg1 arg2 ...)
> > or
> >   (apply (string->procedure name) arglist)
> > if you have the arguments in a list.
> > 
>    Sadly, DSSSL lacks this construct.  Perhaps not so sad, though.
> I've always been wary of such constructs, as I feel that allowing
> programs to write and execute new code on the spot can be a very
> dangerous thing, and often (but not always) lends itself to abuse in
> the form of use where the problem could be better solved via more
> traditional approaches.
> 
> -Brandon :)
> 


If DSSSL does not reify the symbol table,
then  one must explicitly maintain
the association between the relevant procedures
and their names.

Daniel

 

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