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Re: Add +2 to all numbers in file


From: David Kastrup
Subject: Re: Add +2 to all numbers in file
Date: Fri, 27 Feb 2009 22:55:39 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.0.60 (gnu/linux)

address@hidden (Pascal J. Bourguignon) writes:

> sharky <address@hidden> writes:
>
>> Hi!
>>
>> I have a file with a lot of numbers. It looks like this:
>>
>> xx, xx, xx--xx, xx, xx, x
>> xx, x, xx--xx, xx--xx, x
>> xx, xx
>> xx, xx, xx--xx, xx--xx, xx--xx
>>
>> You get the picture. Can I make emacs add 2 to each and everyone of
>> these numbers?
>>
>> Please help!
>
> If you have only one file, you can edit it interactively.  With recent
> emacs (eg. 22, perhaps even 21), you can substitute an expression.
>
> Type: 
>
> M-x replace-regexp RET \([0-9][0-9]*\) RET \,(+ 2 (car (read-from-string 
> \1))) RET

A bit complicated.

C-M-% [0-9]+ RET \,(+ 2 \#&) RET

-- 
David Kastrup


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