Date: Fri, 15 Jan 2010 14:02:18 -0800 From: Garrett Cooper <yanefbsd@gmail.com> To: David Wolfskill <david@catwhisker.org> Cc: FreeBSD-Hackers <hackers@freebsd.org> Subject: Re: User error or awk bug? Message-ID: <7d6fde3d1001151402m74d999e5off14be9a99b5d187@mail.gmail.com> In-Reply-To: <20100115215701.GN86359@bunrab.catwhisker.org> References: <7d6fde3d1001151241tfeaa4a2j1c8448e40b2b164e@mail.gmail.com> <20100115211639.GM86359@bunrab.catwhisker.org> <7d6fde3d1001151351u58ee4989m41d39538469de236@mail.gmail.com> <20100115215701.GN86359@bunrab.catwhisker.org>
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On Fri, Jan 15, 2010 at 1:57 PM, David Wolfskill <david@catwhisker.org> wro=
te:
> On Fri, Jan 15, 2010 at 01:51:34PM -0800, Garrett Cooper wrote:
>> ...
>> >
>> > d254(6.4-S)[7] echo //////// | awk '{ gsub (/\/{2,}/, ""); print }'
>> > ////////
>> > d254(6.4-S)[8] echo //////// | awk '{ gsub (/\/+/, "/"); print }'
>> > /
>> > d254(6.4-S)[9]
>>
>> =A0 =A0 I'm avoiding this because it would create an infinite loop in my
>> awk script (I want to squish slashes, not eliminate them completely
>> :)...).
>
> Errr... =A0I thought "/\/{2,}/" was a regex referring to "2 or more
> consecutive /", and the replacement was "", which sounds about as close
> to eliminating them completely as I can imagine. =A0:-}
>
> How about:
>
> d254(6.4-S)[10] echo //////// | awk '{ gsub (/\/\/+/, "/"); print }'
> /
> d254(6.4-S)[11]
>
> then?
This works very well. Is the expression quantifier operator [ `{'
] not supported in awk like perl, python, tcl, etc?
Thanks,
-Garrett
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