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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: Sat, 7 Sep 2002 17:08:14 +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.firstname.lastname@example.org>
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
> Okay, then... There is a pure sed solution that doesn't use
> repetition. It's peculiar, and involves a loop. In this particular
> case, you are probably better off just repeating the patterns 3
> times. But I'm posting it just to show that it can be done. Call me
> vain. :-D
> Okay, here goes:
> sed 's/$/0^A1^A2^B3^C4^E5^E6^G7^G/;:a;s/\(-m
Thankyou :-) You clearly qualify as a sed wizard, 1st class!
However, in analysing your solution, I learnt something new about sed - namely,
the t command.
So, I can use the simpler script:
':a;s/\(-m [0-7]*\)6/\17/;s/\(-m [0-7]*\)4/\15/;ta'
Now, to build that into libtool...
Thanks for the help!
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