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Re: (error (format ...
From: |
David Kastrup |
Subject: |
Re: (error (format ... |
Date: |
Thu, 16 Jun 2005 15:49:20 +0200 |
User-agent: |
Gnus/5.11 (Gnus v5.11) Emacs/22.0.50 (gnu/linux) |
Juanma Barranquero <address@hidden> writes:
> Is there any reason for uses like this one from simple.el:
>
> (error (format "No further undo information%s"
> (if (and transient-mark-mode mark-active)
> " for region" "")))
>
> instead of simply:
>
> (error "No further undo information%s"
> (if (and transient-mark-mode mark-active)
> " for region" ""))
I'd probably be tempted to use
(error (concat "No further undo information"
(and transient-mark-mode mark-active
" for region")))
in this case. It shares the disadvantage of the original version
(when compared to yours) of being more likely to lead to accidental
format string vulnerabilities if a user takes this as starting code
for something with a variable string.
It is perhaps more educational to preferable follow (error ... with a
constant string.
--
David Kastrup, Kriemhildstr. 15, 44793 Bochum
- (error (format ..., Juanma Barranquero, 2005/06/16
- Re: (error (format ...,
David Kastrup <=