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Re: scanning strings, backward?

Cameron, Gemma (UK)

10/11/2006 1:00:00 PM


I think Bil just wants to remove part of the line rather than all of it:

> 3) Remove /dt/i

i.e.
line.gsub!(/\/dt\/i/, '')

Using String::gsub as suggested by Vidar

Gem

-----Original Message-----
From: M. Edward (Ed) Borasky [mailto:znmeb@cesmail.net]
Sent: 11 October 2006 13:50
To: ruby-talk ML
Subject: Re: scanning strings, backward?

*** WARNING ***

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external partner or the Global Internet.
Keep this in mind if you answer this message.

Bil Kleb wrote:
> Hi,
>
> I would like to automate a code cleanup task which involves finding
> warning messages like,
>
> Warning: ../../LibF90/bc_inviscid.f90, line 1707:
> DT explicitly imported into BC_INVISCID_FLUX but not used detected
> at BC_INVISCID_FLUX@<end-of-statement>
>
> and removing the offending unused import.
>
> So, the tasks are roughly,
>
> 1) Goto line 1707 of the file
> 2) Search backward until line.match /\Wdt\W/i
> 3) Remove /dt/i
>
> I'm stuck on an elegant, i.e., Ruby, way to do the first two steps.
> Please point me toward the glittering light.
>
> Thanks,
> --
> Bil Kleb
> http://fun3d.lar...

Wait a minute ... is the file you're editing always a Fortran source?
Why not just comment out the offending line rather than removing it?
Otherwise, removing a line changes the position number of every line
following it.
>
>






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1 Answer

Bil Kleb

10/11/2006 1:37:00 PM

0

Cameron, Gemma (UK) wrote:
> I think Bil just wants to remove part of the line rather than all of it:
>
> > 3) Remove /dt/i
>
> i.e.
> line.gsub!(/\/dt\/i/, '')

Yes

And sorry for the confusing example; I should have written, %r{/dt/i}.

Regards,
--
Bil Kleb
http://fun3d.lar...