From: Marius Vollmer <marius.vollmer@uni-dortmund.de>
Cc: guile-devel@gnu.org
Subject: Re: Value history
Date: 08 Aug 2002 19:46:19 +0200 [thread overview]
Message-ID: <ljadnxs0pg.fsf@burns.dt.e-technik.uni-dortmund.de> (raw)
In-Reply-To: <20020805031214.GA29032@nsx.internal.hewgill.net>
Greg Hewgill <greg@hewgill.com> writes:
> Below is a patch for the "Value history" idea. This diff is against
> the CVS head.
Excellent! Thanks!
> If anybody has any suggestions for improvement, let me know. I get
> the feeling that the eval statement might not be the best way to do
> the global $<n> assignment, but it was the only way I could find to
> make it work.
Yes, eval is not the most direct way to do what you want. You can
also use
(module-define! (current-module) (string->symbol ...) result)
I think it is also important to have a way to switch the history off,
and to limit it to a maximum number of levels. Otherwise, an
arbitrary amount of uncollectable garbage might built up without the
user being aware of it.
You can use
(module-remove! (current-module)
(module-local-variable (current-module) sym))
to undefine variables in the current module. Might be worth to define
'module-undefine!'...
If you could make these changes, that would be great!
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next prev parent reply other threads:[~2002-08-08 17:46 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-08-05 3:12 Value history Greg Hewgill
2002-08-08 17:46 ` Marius Vollmer [this message]
2002-08-08 21:32 ` Neil Jerram
2002-08-08 23:14 ` Marius Vollmer
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