Dear cll,
I want to pass a form to a function for evaluation.
EVAL does can't access local variables. Is there an
EVAL that works with ENV (I once saw that Scheme's
EVAL accepts an ENV-parameter)?
Perhaps I'm totally off track anyway. What I want
to do is build a state-machine that performs
some predefined operation upon a given input.
For that I store the possible inputs and what to
do with it (a form) in a table. Isn't this
pretty lispish?
The simplest way to go is to ditch the local
variables, but I'm scared off of name-clashes
and the mess variables in the global namespace
make.
Kind regards, tip of the propeller-hat
Gantar
On Fri, Apr 30, 2004 at 01:20:13AM +0200, gantar wrote:
> Perhaps I'm totally off track anyway. What I want
> to do is build a state-machine that performs
> some predefined operation upon a given input.
> For that I store the possible inputs and what to
> do with it (a form) in a table. Isn't this
> pretty lispish?
What you really want to store is a closure. For example:
(defparameter *input-table*
`((A . ,#'(lambda (...) ...stuff-to-do...))
...))
or (add-to-table 'A #'(lambda ...)) however you build up your table.
--
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