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Re: condition-case
From: |
Ted Zlatanov |
Subject: |
Re: condition-case |
Date: |
Mon, 13 Dec 2010 11:10:30 -0600 |
User-agent: |
Gnus/5.110011 (No Gnus v0.11) Emacs/24.0.50 (gnu/linux) |
On Fri, 10 Dec 2010 12:40:06 -0600 Ted Zlatanov <tzz@lifelogs.com> wrote:
TZ> On Thu, 09 Dec 2010 10:04:12 -0500 Stefan Monnier
<monnier@iro.umontreal.ca> wrote:
>>> (subst var (car clausvar) body)))))
SM> Oh wait, I just noticed this one: `subst' is wrong here. I know CL
SM> already uses it for similar purposes elsewhere, but it's simply wrong
SM> because `subst' doesn't know about Elisp binding rules.
SM> So (subst 'b 'a '(lambda () '(a b c))) will happily return
SM> (lambda () '(b b c)). Better simply use `let', even if it has
SM> a performance cost.
TZ> I didn't catch that. I don't know enough about ELisp vs. CL scoping and
TZ> binding rules to write this properly, unfortunately. Can you show how
TZ> `let' could be used? I'll take the code and provide the doc string and
TZ> reindent it, then propose the revised version in emacs-devel.
...in other words, in the example you showed, is it just
(let ((b a))
(lambda () '(b b c)))
or is it more complicated?
Ted
- Re: condition-case, (continued)
- Re: condition-case, Ted Zlatanov, 2010/12/08
- Re: condition-case, Stefan Monnier, 2010/12/08
- Re: condition-case, Ted Zlatanov, 2010/12/08
- Re: condition-case, Stefan Monnier, 2010/12/08
- Re: condition-case, Ted Zlatanov, 2010/12/08
- Re: condition-case, Pascal J. Bourguignon, 2010/12/08
- Re: condition-case, Stefan Monnier, 2010/12/09
- Re: condition-case, Ted Zlatanov, 2010/12/10
- Re: condition-case, Stefan Monnier, 2010/12/10
- Re: condition-case, Ted Zlatanov, 2010/12/13
- Re: condition-case,
Ted Zlatanov <=
- Re: condition-case, Stefan Monnier, 2010/12/15
- Re: condition-case, Ted Zlatanov, 2010/12/15
- Re: condition-case, Stefan Monnier, 2010/12/16
- Re: condition-case, Pascal J. Bourguignon, 2010/12/08
- Re: condition-case, Elena, 2010/12/09
- Re: condition-case, Pascal J. Bourguignon, 2010/12/09