On Feb 9, 2010, at 4:19 PM, David Wolfskill wrote:
> On Tue, Feb 09, 2010 at 04:14:12PM -0800, Garrett Cooper wrote:
>> ...
>> I'll see if I can whip up a quick patch in the next day or so -- but
>> before I do that, does it make more sense to do globs or regular
>> expressions? There are pluses and minuses to each version and would require
>> some degree of parsing (and potentially escaping).
>> ...
>
> I believe it's easier to be precise about exactly what is wanted with a
> regex (vs. a glob).
>
> On the other hand, globs tend to be "quick & dirty" (in my experience). ;-}
Your doppleganger's Andrew :o?
Regexps have a certain degree of ambiguity with them, as the following
is a valid regexp:
sysctl dev\.cpu\..*\.temperature
Assuming the correct periods are escaped, this would be a minor
bug-prone task to complete.
Whereas this form will return different results from what you want most
likely (note the subtle difference with the extra period):
sysctl dev\.cpu.*\.temperature
Globs in this case don't buy you that much difference for what you
want, and (IMO) add unnecessary complexity to the problem as you can still
apply basic character classes, et all.
Thanks,
-Garrett_______________________________________________
freebsd-hackers@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-hackers
To unsubscribe, send any mail to "freebsd-hackers-unsubscr...@freebsd.org"
