RE: TR: [cl-ppcre-devel] New release 1.2.4
Edi Weitz [edi@agharta.de] wrote:
On Tue, 8 Mar 2005 10:52:47 -0600, Kick Damien-DKICK1 <DKICK1@motorola.com> wrote:
Personally, I still would like to know of an easy way to change these settings.
Me too. If there's a simple idiom for this I'll be happy to incorporate it into CL-PPCRE.
Silly Damien, RTFM. There was a X3J13 issue <http://tinyurl.com/6mw2d> in which the ability to write macros that expanded into declaration forms was removed. The discussion of the issue includes examples of how to acheive the wanted affect. For the moment, the following is my favorite: Another tactic would be: Old code: (EVAL-WHEN (EVAL COMPILE LOAD) (DEFVAR *SPEEDY* NIL)) (DEFMACRO USE-STANDARD-SPEED-AND-SAFETY () (IF *SPEEDY* `(DECLARE (OPTIMIZE (SPEED 3) (SAFETY 0))) `(DECLARE (OPTIMIZE (SPEED 0) (SAFETY 3))))) (DEFUN FOO () (USE-STANDARD-SPEED-AND-SAFETY) ...) New code: (EVAL-WHEN (EVAL COMPILE LOAD) (DEFVAR *STANDARD-SPEED-AND-SAFETY* '((SPEED 0) (SAFETY 3)))) (DEFUN FOO () (DECLARE (OPTIMIZE #.*STANDARD-SPEED-AND-SAFETY*)) ...) -- Damien Kick
On Tue, 8 Mar 2005 13:17:41 -0600, Kick Damien-DKICK1 <DKICK1@motorola.com> wrote:
New code: (EVAL-WHEN (EVAL COMPILE LOAD) (DEFVAR *STANDARD-SPEED-AND-SAFETY* '((SPEED 0) (SAFETY 3)))) (DEFUN FOO () (DECLARE (OPTIMIZE #.*STANDARD-SPEED-AND-SAFETY*)) ...)
Looks cool to me. How about a patch for CL-PPCRE? :) Cheers, Edi.
I suggest taking a page from GBBopen's book and using something like: (defmacro with-standard-optimization (&body body) `(locally (declare (optimize (speed 1) (safety 3) (debug 1))) ,@body)) (defun foo () (with-standard-optimization ...)) this has the advantage of not requiring the read time evaluation of #. which some view as a security risk. On Mar 8, 2005, at 2:30 PM, Edi Weitz wrote:
New code: (EVAL-WHEN (EVAL COMPILE LOAD) (DEFVAR *STANDARD-SPEED-AND-SAFETY* '((SPEED 0) (SAFETY 3)))) (DEFUN FOO () (DECLARE (OPTIMIZE #.*STANDARD-SPEED-AND-SAFETY*)) ...)
-- Gary Warren King, Lab Manager EKSL East, University of Massachusetts * 413 577 0176 “Hope is not a course of action.” -- a retired four-star general
On Tue, 8 Mar 2005 14:43:36 -0500, Gary King <gwking@metabang.com> wrote:
I suggest taking a page from GBBopen's book and using something like:
(defmacro with-standard-optimization (&body body) `(locally (declare (optimize (speed 1) (safety 3) (debug 1))) ,@body))
(defun foo () (with-standard-optimization ...))
this has the advantage of not requiring the read time evaluation of #. which some view as a security risk.
I have to admit that I find the #. approach more aesthetically pleasing - one reason is that it doesn't introduce a new level of nesting. I fail to see the security risk - we're not talking about data entered from a random website or somesuch. Cheers, Edi.
participants (3)
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Edi Weitz -
Gary King -
Kick Damien-DKICK1