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Re: Calling all sed wizards! Need a little help with possible fix: Subtle permissions bug in interaction between Makefiles & libtool (Cygwin-specific)
- From: "Max Bowsher" <maxb at ukf dot net>
- To: <cygwin at cygwin dot com>
- Date: Thu, 5 Sep 2002 23:19:13 +0100
- Subject: Re: Calling all sed wizards! Need a little help with possible fix: Subtle permissions bug in interaction between Makefiles & libtool (Cygwin-specific)
- References: <Pine.GSO.4.44.0209051809490.13825-100000@slinky.cs.nyu.edu>
Igor Pechtchanski wrote:
> On Thu, 5 Sep 2002, Max Bowsher wrote:
>
>> I had an idea:
>> sedpat6='s,\(-m [0-7]*\)6,\17,g'
>> sedpat4='s,\(-m [0-7]*\)4,\15,g'
>> sed -e "$sedpat4" -e "$sedpat4" -e "$sedpat4" -e "$sedpat6" -e
>> "$sedpat6" -e "$sedpat6"
>>
>> but can anyone show me a way without repeating each pattern 3 times?
>
> Hmm, "perl -pe 's/(?<=-m )([0-7]+)/($a=$1)=~tr,046,157,;$a/ge'"? O:)
Yep, but given that this is for use in libtool, it can't rely on perl.
Max.
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